JP2009059966A - Mounting board and light emitting module - Google Patents

Abstract

Provided is a mounting substrate or the like in which two or more connection forms of light emitting elements can be obtained from one wiring pattern.
A mounting substrate 1 includes a plurality of lands Rn (n is a natural number) on which each of a plurality of light emitting elements each having two electrodes is mounted, and a lead portion for supplying power to the light emitting elements through the lands Rn. The wiring pattern is as follows. Each land Rn is composed of four or more small land portions, and each light emitting element is mounted by either the first mounting or the second mounting. One end of a different lead portion is connected to each of the two small land portions connected to the electrodes in the first and second mountings, and the land R3 is two small lands connected to the electrodes in the first mounting. The other end of the lead part Lb4 connected to the part is the power supply terminal 11, and the other end of the lead part La9 connected to the two small land parts connected to the electrodes in the second mounting is connected. The tip is a small land portion of the land R4.
[Selection] Figure 1

Description

  The present invention relates to a mounting substrate for surface mounting a light emitting element and a light emitting module in which the light emitting element is mounted on the mounting substrate.

  There is a light emitting module in which a plurality of light emitting elements, for example, LED elements, are mounted on a mounting substrate in which a wiring pattern is formed on a main surface of a substrate body. In such a light emitting module, the number of light emitting elements mounted, the connection method such as series and parallel, etc. are appropriately designed in consideration of the amount of light required for the module, and the wiring pattern of the specification based on the design result is It is formed. That is, the mounting substrate is determined for each specification of the light emitting module.

On the other hand, a light-emitting device that can change the number of LED elements that emit light has also been proposed (see Patent Document 1). The light emitting device includes three or more power supply terminals and two or more wiring patterns connected to the power supply terminals, and the two or more wiring patterns are connected by switching the connection of the power supply terminals. Thereby, the light emission number of the LED element mounted on the mounting substrate is changed.
JP 2007-173548 A

However, the mounting substrate used in the light-emitting device can change the number of light-emitting elements and the connection form of the LED element by switching the connection of the power supply terminal when the LED element is mounted and incorporated as a device. There is only one connection form of the LED elements obtained from one wiring pattern, and it cannot be shared with a mounting substrate of another connection form.
In view of the above problems, an object of the present invention is to provide a mounting substrate and a light emitting module capable of obtaining two or more connection forms of light emitting elements from one wiring pattern.

  In order to achieve the above object, a mounting board according to the present invention includes a plurality of lands on which a plurality of light emitting elements each having two electrodes are mounted, a power supply terminal connected to an external power source, and each land. A light-emitting element mounting substrate having a wiring pattern including a lead portion for supplying power to the light-emitting element, and each land is composed of four or more small land portions, and is connected to each light-emitting element land. The mounting form of the first mounting in which the two electrodes of the light emitting element are connected to the predetermined two small land parts of the four or more small land parts, and the two electrodes of the light emitting element are Two small land portions connected to two small land portions other than the predetermined two small land portions and connected to the electrodes of the light emitting element in the first mounting. And the electrode of the light emitting element in the second mounting One end of a different lead portion is connected to each of the two small land portions to be connected. Among the plurality of lands, the two small land portions connected to the electrodes of the light emitting element in the first mounting are connected. The other end of the connected lead part is a power supply terminal, and the other end of the lead part connected to the two small land parts connected to the electrode of the light emitting element in the second mounting is It is characterized in that a connection form switching land which is a small land portion of another land is included.

Since the mounting board according to the present invention has the connection form switching land, the light emitting element is mounted on the plurality of lands by mounting the light emitting element on the connection form switching land first or second. The connection form of the light emitting elements can be switched, and as a result, two or more connection forms of the light emitting elements can be obtained from one wiring pattern.
In addition to the connection mode switching land, the plurality of lands include one of the other ends of the lead portions connected to the two small land portions connected to the electrodes of the light emitting element in the second mounting. Connection form in which the connection destination is a power supply terminal and the connection destination of the other end of the lead portion connected to the two small land portions connected to the electrodes of the light emitting element in the first mounting is the small land portion of the other land It features a land for switching.

For this reason, two or more connection form switching lands are included as a result, and even when there are two power supply terminals, two or more connection forms of light emitting elements can be obtained from one wiring pattern.
Further, in the plurality of lands, when the mounting form of the light emitting element is the same, the light emitting element mounted on the land and the light emitting element mounted on the land adjacent to the land are connected in series. As described above, the small land portion of the land includes a land connected to the small land portion of the adjacent land through the lead portion.

For this reason, it is possible to easily obtain a series connection group in which the light emitting elements are mounted in the same manner and adjacent light emitting elements are connected in series.
Further, when the number of lands is 2N (N is a natural number), the Nth land and the N + 1th land are connection form switching lands, and the light emitting elements are arranged in the first mounting pattern on all the lands. When mounted, all the light emitting elements are connected in series with the power supply terminal. When the light emitting elements are mounted on all lands in the second mounting pattern, they are mounted on the first to Nth lands. The series connection group of the light emitting elements and the series connection group of the light emitting elements mounted on the (N + 1) th to 2N lands are connected in parallel.

  Alternatively, when the number of lands is A × B (both A and B are natural numbers of 2 or more), the A × i-th land and the A × i + 1-th (i is a natural number from 1 to (B−1)). ) Is a connection form switching land, and when light emitting elements are mounted on all lands in the first mounting pattern, all the light emitting elements are connected in series to the power supply terminal. When the light emitting elements are mounted on all the lands in the second mounting pattern, lands from A × k + 1 to A × (k + 1) th (k is a natural number from 0 to (B−1)). A series connection group of light-emitting elements mounted on the B is connected in parallel.

With these configurations, by using a mounting substrate having one wiring pattern and changing the mounting pattern of the light emitting elements, a light emitting module having two or more connection forms can be obtained.
On the other hand, the light emitting module according to the present invention is a light emitting module in which the plurality of light emitting elements are mounted on a mounting substrate having a wiring pattern electrically connected to the plurality of light emitting elements having two electrodes on the bottom surface. The mounting board is a mounting board configured as described above.

For this reason, two or more light emitting modules having different connection forms can be obtained using one mounting board, and the mounting board can be shared with other light emitting modules having different connection forms.
A part of the lead part is electrically disconnected, or a part of the lead part is electrically connected to another lead part.

  With this configuration, it is possible to increase the types of connection forms when the light emitting elements are mounted, and to increase the versatility of the mounting substrate.

The mounting substrate according to the present invention is for mounting a light emitting element having a first electrode and a second electrode on the bottom surface, and each of the mounting substrates mounted with the light emitting element is a light emitting module. Embodiments will be described.
Note that the embodiments and the like described below show examples of the mounting substrate and the light emitting module according to the present invention, and the present invention is not limited to the contents described in these embodiments and the like.
<First Embodiment>
1. Mounting Board (1) Overall FIG. 1 is a plan view of a mounting board according to the first embodiment.

As shown in FIG. 1, the mounting substrate 1 has a wiring pattern 5 formed on a surface (one main surface) 3 a of a rectangular plate-like substrate body 3. The wiring pattern 5 is formed so that six LED elements (see FIG. 2) can be mounted in two connection forms.
In addition, the LED element here is a single-sided, double-electrode type having two electrodes on the bottom surface, and both electrodes are electrically connected to the wiring pattern by being surface-mounted on the wiring pattern.

The substrate body 3 may be, for example, a ceramic substrate or a resin substrate. Furthermore, the surface of a metal plate, for example, a copper plate or an aluminum plate, may be insulated.
For example, copper is used as the material of the wiring pattern, and a known method such as etching can be used as the formation method. Note that the material of the wiring pattern may be a material other than copper, for example, gold, or may be constituted by a copper surface plated with gold. Also, other methods may be used as the method for forming the wiring pattern.
(2) Wiring Pattern FIG. 2 is a plan view of the light emitting module according to the first embodiment, and shows a case where the LED elements are mounted in the first connection form. FIG. 3 is a plan view of the light emitting module according to the first embodiment, in which the LED element is mounted in the second connection form.

  As shown in FIG. 2, the first connection form includes three LED elements D1 to D3 connected in series (this series connected element is referred to as “first series connection group”). LED elements D4 to D6 are connected in series (this connected in series is referred to as a “second series connection group”), and these first and second series connection groups are connected in parallel (hereinafter referred to as “3 series connections”). 2) ". In this example, “A” according to the present invention is “3”, and “B” is “2”.

As shown in FIG. 3, the second connection configuration is a configuration in which all six LED elements D <b> 1 to D <b> 6 are connected in series (one connected in parallel (hereinafter referred to as “6 straight 1 parallel”)). It is.
The LED elements D1 to D6 in FIG. 2 have a substantially square bottom surface, and a predetermined region at one corner (corner) is an N-type electrode. When the LED elements D1 to D6 are mounted, In order to understand the positions of the electrodes, the electrodes are cut at the bottom electrode portions of the LED elements D1 to D6, the P-type electrode portion is indicated by cross-hatching, and the N-type electrode portion is indicated by black. The LED element does not need to be distinguished from other LED elements, and the symbol “Dn” is used when referring to a general LED element (where n is a natural number from 1 to 6).

The wiring pattern 5 is for supplying power to a plurality of (here, six) lands R1 to R6 connected to the LED elements D1 to D6 and the LED elements D1 to D6 mounted on the lands R1 to R6. A lead portion L constituting a power feeding path and power feeding terminals 9 and 11 for receiving power feeding from an external power source are provided. Note that there are two power supply terminals in the first embodiment.
(2-1) Land As shown in FIGS. 1 to 3, the lands R1 to R6 are formed corresponding to the six LED elements Dn. In the present embodiment, the six LED elements Dn In order to be mounted in a substantially linear shape, it is formed at a predetermined interval (here, a constant interval) in a predetermined direction.

  Each land R1 to R6 (reference numeral “Rn” is used to indicate a general land, n is a natural number from 1 to 6 and corresponds to “n” of the LED element Dn), as shown in FIG. In addition, a plurality of (9 here) small land portions Rnk (n is a natural number from 1 to 6 and corresponds to “n” of the land Rn, and k is a natural number from 1 to 9). And the entire shape of the land Rn is substantially square.

By configuring the land Rn with a plurality of small land portions Rnk, the small land portion Rnk connected to the electrode of the LED element Dn can be changed depending on the position (electrode position) of the element when the LED element Dn is mounted.
That is, when the LED element Dn is mounted at the first position (here, the first position is when the N-type electrode is at the upper right of the land Rn) as shown in FIGS. (The mounting at this time is referred to as “first mounting”). The P-type electrode of the LED element Dn is connected to the small land portion Rn2, and the N-type electrode is connected to the small land portion Rn3. On the other hand, when the LED element Dn is mounted at the second position (here, the second position is when the N-type electrode is at the lower right of the land Rn) (the mounting at this time is referred to as “second mounting”). The P-type electrode of the LED element Dn is connected to the small land portion Rn8, and the N-type electrode is connected to the small land portion Rn9.

In the first embodiment, the positions of the N-type electrodes of the LED elements Dn in the first mounting and the second mounting are two corners on both ends of one side of the land Rn whose overall shape is square. . That is, the line R is symmetrical with respect to a line segment passing through the center of the land Rn and in the direction in which the land Rn is arranged.
The small land portions Rn1, Rn3, Rn7, Rn9 in each land Rn have a square shape with the same size, and this size is substantially the same as the size of the N-type electrode of the LED element Dn. Further, the small land portions Rn2, Rn4, Rn6, Rn8 have a substantially rectangular shape with the same size, and the short side thereof is the same as one side of the square shape of the small land portions Rn1, Rn3, Rn7, Rn9. The long side has a length equal to or longer than the remaining dimension obtained by subtracting the length of the N-type electrode portion from the length of one side on one side where the N-type electrode in the square LED element Dn is present. Yes.

The small land portion Rn5 located substantially at the center of each land Rn also has a substantially square shape, and one side thereof is substantially the same as the long sides of the rectangular small land portions Rn2, Rn4, Rn6, Rn8.
Further, the gaps between the small land portions Rn1 to Rn9 in the land Rn are such that the P-type electrode and the N-type electrode are not short-circuited when the LED element Dn is mounted.
(2-2) Lead portion The lead portion L is an LED element mounted when each LED element Dn is mounted with a predetermined mounting pattern (here, the first mounting or the second mounting). The lands Rn, the power supply terminals 9, 11 and the like are connected so that the connection of Dn is a predetermined connection form (here, the first or second connection).

That is, the lead portion L includes the land lead portion La for connecting the lands Rn on which the LED elements are mounted in the first and second connection forms, and the first and second connection forms in the first and second connection forms. Power supply leads Lb that connect lands (for example, R1, R3, R4, R6) at both ends of the series connection group and the power supply terminals 9 and 11 are provided.
This will be specifically described below.
(A) Land lead part As shown in FIG. 2, the land lead parts La1 and La2 connect the LED elements D1 to D3 in series when the LED elements D1 to D3 are in the first mounting. That is, the land lead portion La1 connects the small land portion R13 and the small land portion R22, and the land lead portion La2 connects the small land portion R23 and the small land portion R32.

As shown in FIG. 3, the land lead portions La3 and La4 connect the LED elements D4 to D6 in series when the LED elements D4 to D6 are in the first mounting. That is, the land lead portion La3 connects the small land portion R43 and the small land portion R52, and the land lead portion La4 connects the small land portion R53 and the small land portion R62.
Further, as shown in FIG. 3, the land lead portions La5 and La6 connect the LED elements D1 to D3 in series when the LED elements D1 to D3 are in the second mounting. That is, the land lead portion La5 connects the small land portion R19 and the small land portion R28, and the land lead portion La6 connects the small land portion R29 and the small land portion R38.

As shown in FIG. 2, the land lead portions La7 and La8 connect the LED elements D4 to D6 in series when the LED elements D4 to D6 are in the second mounting. That is, the land lead portion La7 connects the small land portion R49 and the small land portion R58, and the land lead portion La8 connects the small land portion R59 and the small land portion R68.
Further, as shown in FIG. 3, when the LED element D3 is mounted in the second mounting form and the LED element D4 is mounted in the first mounting form, the land lead portion La9 has the LED elements D3 and D4. Connect in series. That is, the land lead portion La9 connects the small land portion R39 and the small land portion R42.
(B) Feed Lead Part As shown in FIG. 2, the feed lead part Lb1 connects the land R1 located at one end of the first series connection group in the first connection configuration and the feed terminal 9 to the feed lead. The part Lb3 connects the land R4 located at one end of the second series connection group in the first connection form and the power supply terminal 9 respectively. That is, the power supply lead Lb1 connects the small land R12 and the power supply terminal 9, and the power supply lead Lb3 connects the small land R48 and the power supply terminal 9.

  Further, as shown in FIG. 2, the power supply lead portion Lb4 includes the land R3 and the power supply terminal 11 located at the other end of the first series connection group in the first connection configuration, and the power supply lead portion Lb6 includes the first power supply lead portion Lb6. The land R6 located at the other end of the second series connection group in the connection form 1 and the power supply terminal 11 are connected to each other. That is, the power feeding lead portion Lb4 connects the small land portion R33 and the power feeding terminal 11, and the power feeding lead portion Lb6 connects the small land portion R69 and the power feeding terminal 11.

As shown in FIG. 3, the power supply lead portion Lb2 is connected to the land R1 located at one end of the series connection in the second connection configuration and the power supply terminal 9, and the power supply lead portion Lb5 is connected in series to the second connection configuration. The land R6 located at the other end of the power supply and the power supply terminal 11 are connected to each other. That is, the feeding lead portion Lb2 connects the small land portion R18 and the feeding terminal 9, and the feeding lead portion Lb5 connects the small land portion R68 and the feeding terminal 11.
(3) Land and lead part The wiring pattern in this embodiment has 12 lands, and each land has four small land parts Rn2, Rn3, Rn8, and Rn9 connected to different lead parts. ing.

  The lands constituting the first series connection group are lands R1, R2, and R3, and the lands constituting the second series connection group are lands R4, R5, and R6. The mounting form of all the LED elements Dn in the connection group constituting each series connection group on the land Rn is the first mounting or the second mounting. The land Rn on which the LED element Dn is mounted is The LED element Dn mounted on the land and the LED element adjacent to the LED element Dn are connected to the small land portion of the adjacent land via the land lead portion La so as to be connected in series.

  In the first mounting, the third land R3 from the power supply terminal 9 is, as shown in FIG. 2, a lead portion La2 connected to two small land portions R32 and R33 connected to the electrode of the LED element D3. , Lb4 (here, Lb4) is connected at the other end to the power supply terminal 11, and in the second mounting, as shown in FIG. 3, two small connections connected to the electrode of the LED element D3 are provided. The other ends of the lead portions La6 and La9 connected to the land portions R38 and R39 are the small land portions R29 and R42 of the lands R2 and R4 which are other lands. That is, the land R3 is the “connection form switching land” of the present invention.

Further, in the second mounting, the fourth land R4 from the power supply terminal 9 is, as shown in FIG. 2, a lead portion Lb3 connected to two small land portions R48 and R49 connected to the electrode of the LED element D4. , La7 (here, Lb3) is connected at the other end to the power supply terminal 9, and in the first mounting, as shown in FIG. 3, two small electrodes connected to the electrode of the LED element D4 are connected. The other ends of the lead portions La9 and La3 connected to the land portions R42 and R43 are the small land portions R39 and R52 of the lands R3 and R5 which are other lands. That is, the land R4 is also a “connection form switching land” of the present invention. In the connection mode switching land, when the number of all lands Rn is expressed by “2N”, “N” becomes “3”, and the third and the third are the 4th. Further, when the number of all lands Rn is expressed as “A × B”, “A” becomes “3”, “B” becomes “2”, and there are connection form switching lands in the third and fourth. Will be the second.
2. Light Emitting Module The light emitting module according to the first embodiment is configured by mounting the LED element Dn on the mounting substrate 1. In particular, two types of light emitting modules having different connection forms can be obtained from one mounting substrate depending on the position at which the LED element Dn is mounted.
(1) First connection form (see FIG. 2)
Among the LED elements Dn, the LED elements D1 to D3 are mounted on the lands R1 to R3 in the first mounting form, and the LED elements D4 to D6 are mounted on the lands R4 to R6 in the second mounting form (this mounting) The first mounting pattern becomes the first mounting pattern.), And the light emitting modules 13 in a three-by-two configuration as the first connection form can be obtained.

  That is, one series including the power supply terminal 9, the power supply lead portion Lb 1, the LED element D 1, the land lead portion La 1, the LED element D 2, the land lead portion La 2, the LED element D 3, the power supply lead portion Lb 4, and the power supply terminal 11. The connection and the power supply terminal 9, the power supply lead portion Lb3, the LED element D4, the land lead portion La7, the LED element D5, the land lead portion La8, the LED element D6, the power supply lead portion Lb6, and the power supply terminal 11 The series connection is connected in parallel.

The mounting of the LED element Dn is coupled to the small land portion Rnk via a bump, for example. Specifically, the P-type electrodes of the LED elements D1, D2, and D3 are surface-mounted on the small land portions R12, R22, and R32, and the N-type electrodes are mounted on the small land portions R13, R23, and R33, respectively.
Similarly, the P-type electrodes of the LED elements D4, D5, and D6 are surface-mounted on the small land portions R48, R58, and R68, and the N-type electrodes are mounted on the small land portions R49, R59, and R69, respectively.

The P-type electrodes of the LED elements D1 to D6 are further mounted on the small land portions R15, R16, R25, R26, R35, R36, R45, R46, R55, R56, R65, and R66 via bumps. May be.
(2) Second connection form (see FIG. 3)
Among the LED elements Dn, the LED elements D1 to D3 are mounted on the lands R1 to R3 in the second mounting form, and the LED elements D4 to D6 are mounted on the lands R4 to R6 in the first mounting form (this mounting The pattern becomes the second mounting pattern.), The light emitting modules 15 in the 6-line and 1-line configuration which are the second connection form can be obtained.

  That is, the feeding terminal 9, the feeding lead portion Lb2, the LED element D1, the land lead portion La5, the LED element D2, the land lead portion La6, the LED element D3, the land lead portion La9, the LED element D4, and the land lead portion. One series connection including La3, LED element D5, land lead portion La4, LED element D6, power feeding lead portion Lb5, and power feeding terminal 11 is made.

  Also in the second connection mode, the LED element Dn is mounted through, for example, bumps. Specifically, the P-type electrodes of the LED elements D1, D2, and D3 are connected to the small land portions R18 and R28. , R38, the N-type electrodes are surface-mounted on the small land portions R19, R29, R39, respectively. Similarly, the P-type electrodes of the LED elements D4, D5, and D6 are surface-mounted on the small land portions R42, R52, and R62, and the N-type electrodes are mounted on the small land portions R43, R53, and R63, respectively.

Each P-type electrode of the LED element Dn is further connected to the small land portions R15, R16, R25,
R26, R35, R36, R45, R46, R55, R56, R65, and R66 may be mounted via bumps.
3. Summary In the first embodiment, two connection forms can be obtained by using six LED elements Dn and changing the mounting (form) to the land Rn of each LED element Dn. The two connection forms here are 3 series and 2 series and 6 series and 1 series.

However, even if six LED elements Dn are used, other connection forms different from the connection forms described in the first embodiment can be obtained, and naturally, other than six LED elements can be used. Also, a plurality of connection forms can be obtained with one mounting substrate.
Hereinafter, Modification 1 according to the first embodiment will be described.
FIG. 4 shows a light emitting module according to Modification 1 of the first embodiment.

  In the light emitting module according to Modification 1, twelve LED elements Dn (n is a natural number of 1 to 12) are mounted on the mounting board 31, and the LED elements Dn are mounted using one mounting board 31. When mounted with the first mounting pattern, the light emitting module 33 having the first connection form as shown in FIG. 4A can be obtained. When mounted with the second mounting pattern, the light emitting module 33 of FIG. The light emitting module 35 having the second connection configuration as shown in FIG.

The first mounting and the second mounting in this modification are the same as those in the first embodiment, but the shape of the wiring pattern, the number of lands, the first and second mounting patterns, the first and the second mounting patterns are the same. The second connection form is different from the first embodiment.
(1) 1st connection form As shown to (a) of FIG. 4, LED element D1-D3, D7-D9 is a 1st mounting form among 12 LED elements, and LED element D4-D6. D10 to D12 are second mounting forms, and are mounted on lands Rn (n is a natural number from 1 to 12), respectively. Such a mounting pattern of the LED elements Dn is defined as a first mounting pattern.

In the light emitting module 33 in the first mounting pattern, the LED elements D1 to D3, the LED elements D4 to D6, the LED elements D7 to D9, and the LED elements D10 to D12 are connected in series, respectively. A group is formed, and the four series connection groups are connected in parallel to form a first connection form of three series and four.
That is, in this example, “A” according to the present invention is “3”, and “B” is “4”.
(2) Second connection form As shown in FIG. 4B, among the 12 LED elements, the LED elements D1 to D3 and D7 to D9 are the second mounting form, and the LED elements D4 to D6. D10 to D12 are the first mounting form, and are respectively mounted on lands Rn (n is a natural number from 1 to 12). Such a mounting pattern of the LED elements Dn is defined as a second mounting pattern.

In the light emitting module 35 in the second mounting pattern, the LED elements D1 to D6 and the LED elements D7 to D12 are connected in series to form two series connection groups, and these two series connection groups are parallel. It becomes the 2nd connection form of 6 series 2 connected to.
That is, in this example, “A” according to the present invention is “6”, and “B” is “2”.
(3) Summary The wiring pattern 37 in the first modification is a wiring in which two wiring patterns 5 of the first embodiment are combined, that is, two 6-line parallel connection forms are connected in parallel. In the example, the lands R3, R4, R9, and R10 are the connection form switching lands.
<Second Embodiment>
Although the mounting substrate 1 in the first embodiment includes the two power supply terminals 9 and 11, even if two or more connection forms are obtained using two or more power supply terminals. good.

Further, in the first embodiment, the LED elements Dn are all configured with lands that can be mounted in the first or second mounting, but the LED elements Dn cannot be mounted in the first or second mounting (that is, , Only one of them can be mounted).
Hereinafter, a mounting substrate and a light emitting module having two or more power supply terminals will be described.
In the second embodiment, “1” is added to the front of the alphabet to distinguish the light emitting element, land, lead portion, and the like from those of the first embodiment.
1. Mounting Board (1) Overall FIG. 5 is a plan view of a mounting board according to the second embodiment.

As shown in FIG. 5, the mounting substrate 101 has a wiring pattern 105 formed on the surface (one main surface) 103 a of a rectangular plate-like substrate body 103. The configuration of the substrate body 103, the formation method of the wiring pattern 105, and the like are basically the same as those of the substrate body 3 and the wiring pattern 5 in the first embodiment.
(2) Wiring pattern The wiring pattern 105 includes a plurality of lands 1Rn (in the present embodiment, n is a natural number from 1 to 6 in the present embodiment). n is a natural number from 1 to 6 and corresponds to “n” of 1Dn of the LED element.), power supply terminals 107, 109, and 111 for receiving power from an external power source, and lands 1Rn are connected in series. A land lead portion 1La and a power feed lead portion 1Lb for connecting the power feed terminals 107, 109, and 111 to the land 1Rn are provided.

The wiring pattern 105 is formed so that six LED elements can be mounted in two connection forms.
FIG. 6 is a plan view of the light emitting module according to the second embodiment, in which the LED element is mounted in the first connection form. 7 and 8 are plan views of the light emitting module according to the second embodiment, in which the LED elements are mounted in a second connection form or the like.

As shown in FIG. 6, the first connection form is a case where the power supply terminals 107 and 111 are connected to an external power source, and three LED elements 1D1 to 1D3 are connected in series to form a first series connection group. When configured, the three LED elements 1D4 to 1D6 are connected in series to form a second series connection group, and these two series connection groups are connected in parallel (hereinafter referred to as “three-line-two-parallel”). It is.
As shown in FIG. 7, the second connection mode is a case where the power supply terminals 107 and 109 are connected to an external power source. Six LED elements 1D1 to 1D6 are connected in series (one connected in parallel ( Hereinafter, it is referred to as “six straight ones”))).

Further, when the LED element 1Dn is mounted in the same manner as in the second connection form and the power supply terminals 109 and 111 are connected to an external power source as shown in FIG. 8, the three LED elements 1D4 to 1D6 are connected. It is a serial connection (one connected in parallel (hereinafter referred to as “three straight lines”)) (this connection form is the third connection form).
(2-1) Land Each land 1Rn has nine small land portions 1Rnk as in the first embodiment, and the overall shape is substantially square. The small land portion 1Rnk has the same shape and size as those of the first embodiment, and the LED element 1Dn is the same as that of the first embodiment.

LED elements 1D1 to 1D3 are mounted on the lands 1R1 to 1R3, and LED elements 1D4 to 1D6 are mounted on the lands 1R4 to 1R6. The LED elements 1D1 to 1D3 are mounted on the lands 1R1 to 1R3 in one way, and the LED elements 1D4 to 1D6 are mounted on the lands 1R4 to 1R6 in two ways.
That is, the lands 1R1 to 1R3 have only two small land portions connected to lead portions (La, Lb) connected to other LED elements and power supply terminals, and one land 1R4 to 1R6 is connected to the lead portion. There are four small land sections to do.

  In the second embodiment, when the LED elements 1D4 to 1D6 are mounted on the lands 1R4 to 1R6, as shown in FIGS. 6 and 7, the N-type electrode is located at the upper right corner of the square lands 1R4 to 1R6. The time when it is located is the first mounting, and the time when the N-type electrode is located at the lower left corner of the square lands 1R4 to 1R6 is the second mounting. That is, the first mounting is a case where the LED elements 1D4 to 1D6 are mounted so that the N-type electrode is connected to the small land portions 1R43, 1R53, and 1R63 of the lands 1R4, 1R5, and 1R6. Is a case where the LED elements 1D4 to 1D6 are mounted so that the N-type electrode is connected to the small land portions 1R47, 1R57, and 1R67 of the lands 1R4, 1R5, and 1R6.

Note that the positions of the N-type electrodes in the first mounting and the second mounting are in a relationship facing each other across the center point of the lands 1R4 to 1R6, and there are two types that are positioned at two corners of the square. .
(2-2) Lead part (a) Land lead part As shown in FIG. 6, when the LED elements 1D1 to 1D3 are mounted, the land lead parts 1La1 and 1La2 are the LED element 1D1 and the LED element 1D2, LED element 1D2 and LED element 1D3 are connected in series. That is, the land lead portion 1La1 connects the small land portion 1R19 and the small land portion 1R28, and the land lead portion 1La2 connects the small land portion 1R29 and the small land portion 1R38.

  As shown in FIG. 6, the land lead portions 1La3 and 1La4 connect the LED element 1D4 and the LED element 1D5, and the LED element 1D5 and the LED element 1D6 in series when the LED elements 1D4 to 1D6 are in the first mounting. . That is, the land lead portion 1La3 connects the small land portion 1R43 and the small land portion 1R52, and the land lead portion 1La4 connects the small land portion 1R53 and the small land portion 1R62.

  The land lead portions 1La5 and 1La6 are connected in series when the LED elements 1D4 to 1D6 are in the second mounting as shown in FIG. 7, and the LED element 1D5 and the LED element 1D5 are connected in series. Connect to. That is, the land lead portion 1La5 connects the small land portion 1R48 and the small land portion 1R57, and the land lead portion 1La6 connects the small land portion 1R58 and the small land portion 1R67.

Further, as shown in FIG. 7, the land lead portion 1La7 is mounted with the LED elements 1D1 to 1D3, the LED elements 1D4 to 1D6 are mounted in the second mounting form, and the power supply terminals 107 and 109 are connected to the external power source. When connected, the LED element 1D3 and the LED element 1D6 are connected in series. That is, the land lead portion 1La7 connects the small land portion 1R39 and the small land portion 1R68.
(B) Feed Lead Part As shown in FIG. 5 and the like, the feed lead part 1Lb1 connects the land 1R1 and the feed terminal 107, and the feed lead part 1Lb2 connects the land 1R4 and the feed terminal 107, respectively. That is, the feeding lead portion 1Lb1 connects the small land portion 1R18 and the feeding terminal 107, and the feeding lead portion 1Lb2 connects the small land portion 1R42 and the feeding terminal 107. The power feeding lead portion 1Lb3 connects the land 1R4 and the power feeding terminal 109. That is, the power feeding lead portion 1Lb3 connects the small land portion 1R47 and the power feeding terminal 109.

As shown in FIG. 5 and the like, the feeding lead portion 1Lb4 has the land 1R3 and the feeding terminal 111, the feeding lead portion 1Lb5 has the land 1R6 and the feeding terminal 111, and the feeding lead portion 1Lb6 has the land 1R6 and the feeding terminal 111. Are connected to each other. That is, the feeding lead portion 1Lb4 connects the small land portion 1R39 and the feeding terminal 111, the feeding lead portion 1Lb5 connects the small land portion 1R63 and the feeding terminal 111, and the feeding lead portion 1Lb6 is the small land portion 1R68. And the power supply terminal 111 are connected.
2. Light-Emitting Module A light-emitting module according to the second embodiment is formed by mounting the LED element 1Dn on the mounting substrate 101 described above. In particular, three types of light emitting modules having different connection forms can be obtained from one mounting board by selecting the direction of mounting the LED element Dn and selecting the power supply terminal connected to the external power supply.
(1) First Connection Form Among the LED elements 1Dn, as shown in FIG. 6, the LED elements 1D1 to 1D3 are mounted on the lands 1R1 to 1R3, and the LED elements 1D4 to 1D6 are mounted on the lands 1R4 to 1R6. By mounting in the form (this mounting pattern becomes the first mounting pattern) and using the power supply terminals 107 and 111, the light emitting module 113 in the form of connection in three and two rows can be obtained.

  That is, the power supply terminal 107, the power supply lead 1Lb1, the LED element 1D1, the land lead 1La1, the LED element 1D2, the land lead 1La2, the LED element 1D3, the power supply lead 1Lb4, and the power supply terminal 111 are connected in series. Connection, feeding terminal 107, feeding lead part 1Lb2, LED element 1D4, land lead part 1La3, LED element 1D5, land lead part 1La4, LED element 1D6, feeding lead part 1Lb5, feeding terminal 111 The series connection is connected in parallel.

The LED element 1Dn is mounted on the land 1Rn through bumps, for example.
(2) Second Connection Form Among the LED elements 1Dn, as shown in FIG. 7, the LED elements 1D1 to 1D3 are mounted on the lands 1R1 to 1R3, and the LED elements 1D4 to 1D6 are mounted on the lands 1R4 to 1R6. By mounting in the form (this mounting pattern becomes the second mounting pattern) and using the power supply terminals 107 and 109, the light emitting module 115 in the 6-line parallel connection form can be obtained.

  That is, the feeding terminal 107, the feeding lead portion 1Lb1, the LED element 1D1, the land lead portion 1La1, the LED element 1D2, the land lead portion 1La2, the LED element 1D3, the land lead portion 1La7, the LED element 1D6, and the land lead portion. One series connection of 1La6, LED element 1D5, land lead 1La5, LED element 1D4, power feed lead 1Lb3, and power feed terminal 109 is made.

As shown in FIG. 8, without mounting the light emitting elements 1D1 to 1D3, the light emitting elements 1D4 to 1D6 are mounted on the lands 1R4 to 1R6, and the power supply terminals 109 and 111 are used. A light emitting module 115 in a connection form can be used.
That is, the power supply terminal 109, the power supply lead portion 1Lb3, the LED element 1D4, the land lead portion 1La5, the LED element 1D5, the land lead portion 1La6, the LED element 1D6, the power supply lead portion 1Lb6, and the power supply terminal 111 are connected in series. A connection has been made.

In addition, it is also possible to obtain a light emitting module 115 having a connection configuration of 3 series by mounting the light emitting elements 1D1 to 1D6 on the lands 1R1 to 1R6 and using the power supply terminals 109 and 111.
3. Summary In the second embodiment, six LED elements 1Dn are used, the LED elements 1D4 to 1D6 are mounted in different mounting forms, and the power supply terminals 109 and 111 to be used are selected, so that three connection forms are provided. Can be obtained. The three connection forms here are 3 series, 2 series, 6 series, 1 series, and 3 series, 1 series.

  Further, the connection form switching land in this example is the land 1R6. That is, in the first mounting, the land 1R6 is, as shown in FIG. 6, one of the lead portions 1La4 and 1Lb5 connected to the two small land portions 1R62 and 1R63 connected to the electrode of the LED element 1D6 (here, 1Lb5) is connected to the power supply terminal 111, and in the second mounting, as shown in FIG. 8, connected to the two small land portions 1R67 and 1R68 connected to the electrode of the LED element 1D6. The other ends of the lead portions 1La6 and 1La7 thus connected are the small land portions 1R58 and 1R39 of the lands 1R5 and 1R3 which are other lands.

In addition, as shown in FIG. 6, in the light emitting module in which the mounting direction of the LED element 1Dn is different, the illuminance unevenness and the color unevenness can be reduced compared to the light emitting module in which the LED element 1Dn is mounted in the same direction.
As described above, the shape of the wiring pattern is particularly limited if the mounting form of a plurality of LED elements (three in the second embodiment) can be changed and a power supply terminal connected to an external power source can be selected. Not what you want.

Hereinafter, Modification 2 in which the shape of the wiring pattern described in the second embodiment is modified will be described.
FIG. 9 shows a mounting substrate and a light emitting module according to Modification 2.
A mounting substrate 121 according to Modification 2 is obtained by modifying the shape of the wiring pattern 105 on the mounting substrate 101 in the second embodiment. In the second embodiment, the lands 1R1 to 1R3 are: The power supply leads 1Lb1 and 1Lb4 and the land leads 1La1 and 1La2 are located on the outer side (side closer to the outer peripheral edge of the substrate body 103).

In the second modification, as shown in FIG. 9A, the lands 1R1a, 1R2a, and 1R3a are located on the inner side of the power supply leads 1Lb1a and 1Lb4a and the land leads 1La1a and 1La2a (on the center side of the substrate 121). Is located.
The light emitting module 123 in which the LED element 1Dn is mounted in the first connection form using the mounting substrate 121 according to the modified example 2 is shown in FIG. 9B, and the LED element 1Dn is mounted in the second connection form. The light emitting module 125 is shown in FIG.

Here, the mounting of the LED elements 1D1a to 1D3a is the first mounting, and the connection mode switching land is the same land 1R6 as that of the second embodiment.
As shown in FIG. 9B, in the light emitting module in which all the LED elements 1Dn are first mounted, the mounting directions of the LED elements 1Dn are the same, and the LED elements 1Dn can be easily mounted.
<Third Embodiment>
In the first embodiment and the second embodiment, it is possible to obtain light emitting modules of a plurality of types of connection by mounting LED elements in a predetermined direction on one type of mounting substrate. The mounting substrate according to the present invention may be a substrate that can obtain a plurality of types of connection forms by changing the mounting form of the LED elements and cutting a part of the wiring pattern.

In the third embodiment, “2” is added to the front of the alphabet to distinguish the light emitting element, land, lead portion, and the like from those of the first embodiment.
1. Mounting Board (1) Overall FIG. 10 is a plan view of a mounting board according to the third embodiment.

As shown in FIG. 10, the mounting substrate 201 has a wiring pattern 205 formed on the surface (one main surface) 203 a of a rectangular plate-like substrate body 203. The configuration of the substrate body 203, the method of forming the wiring pattern 205, and the like are basically the same as those of the substrate body 3 and the wiring pattern 5 in the first embodiment.
(2) Wiring pattern The wiring pattern 205 includes a plurality of lands 2Rn (in the present embodiment, n is a natural number from 1 to 6 in the present embodiment). n is a natural number from 1 to 6 and corresponds to “n” of 2Dn of the LED element), power supply terminals 207 and 209 for receiving power from an external power source, and land for connecting lands 2Rn in series The lead portion 2La includes a power feeding lead portion 2Lb that connects the power feeding terminals 207 and 209 and a part of the land 2Rn. In addition, this wiring pattern 205 is formed so that two connection forms can be obtained by a combination of two mounting forms that implement six LED elements.

The configuration of the wiring pattern 205 according to the third embodiment is the same as the land Rn in the first embodiment with respect to the land 2Rn. However, the LED element Dn is mounted on the land 2Rn, and the lands connecting the lands are connected to each other. The lead part 2Lb for electric power feeding which connects the lead part 2La for land, land 2Rn, and a power feeding terminal is different.
FIG. 11 is a plan view of the light emitting module according to the third embodiment, in which the LED element is mounted in the first connection form. FIG. 12 is a plan view of the light emitting module according to the third embodiment, in which the LED element is mounted in the second connection form.

In the third embodiment, when the LED element 2Dn is mounted on the land 2Rn, the first orientation is when the N-type electrode is positioned at the upper right corner of the square land 2Rn as shown in FIG. As shown in FIG. 12, the second direction is when the N-type electrode is located at the lower left corner of the square land 2Rn.
As shown in FIG. 11, in the first connection mode, when the three LED elements 2D1 to 2D3 are connected in the first direction, the three LED elements 2D4 to 2D6 are connected in series. These are connected in parallel (hereinafter referred to as “three straight two parallels”).

In the second connection mode, as shown in FIG. 12, six LED elements 2D1 to 2D6 are connected in series (one connected in parallel (hereinafter referred to as “6 straight 1 parallel”)). .
In the third embodiment, the directions of the LED elements 2Rn mounted on the mounting substrate 201 are the same in the first and second connection modes.
(2-1) Land Each land 2Rn has nine small land portions 2Rnk as in the first embodiment, and the overall shape is substantially square. The small land portion 1Rnk has the same shape and size as in the first embodiment, and the small land portion is denoted by the left in FIG. 1 as in the first and second embodiments. The numbers increase from right to left and increase from top to bottom.

As shown in FIGS. 11 and 12, the positions of the N-type electrodes in the first mounting and the second mounting are in a relationship facing each other across the center point of the land 2Rn. Located at each corner. In addition, the mounting form of the LED element 2Dn is determined by the connection location between the small land portion 2Rnk in the land 2Rn and the land lead portion 2La or the power feeding lead portion 2Lb.
(2-2) Lead part (a) Land lead part As shown in FIG. 11, when the LED elements 2D1 to 2D3 are in the first mounting, the land lead parts 2La1 and 2La2 are connected to the LED elements 1D1 to 1D3. Connect in series. That is, the land lead portion 2La1 connects the small land portion 2R13 and the small land portion 2R22, and the land lead portion 2La2 connects the small land portion 2R23 and the small land portion 2R32.

As shown in FIG. 11, the land lead portions 2La3 and 2La4 connect the LED elements 2D4 to 2D6 in series when the LED elements 2D4 to 2D6 are in the first mounting. That is, the land lead portion 2La3 connects the small land portion 2R43 and the small land portion 2R52, and the land lead portion 2La4 connects the small land portion 2R53 and the small land portion 2R62.
Further, as shown in FIG. 12, the land lead portions 2La5 to 2La9 connect the LED elements 2D1 to 2D6 in series when the LED elements 2D1 to 2D6 are in the second mounting. That is, the land lead portion 2La5 has a small land portion 2R18 and a small land portion 2R27, the land lead portion 2La6 has a small land portion 2R28 and a small land portion 2R37, and the land lead portion 2La7 has a small land portion 2R38 and a small land portion 2R38. The land portion 2R47, the land lead portion 2La8 connect the small land portion 2R48 and the small land portion 2R57, and the land lead portion 2La9 connects the small land portion 2R58 and the small land portion 2R67, respectively.
(B) Lead portion for power supply (see FIG. 10)
The power feeding leads 2Lb1 and 2Lb2 connect the land 2R1 and the power feeding terminal 207. That is, the power supply lead 2Lb1 connects the small land 2R12 and the power supply terminal 207, and the power supply lead 2Lb2 connects the small land 2R17 and the power supply terminal 107.

The power supply lead 2Lb3 connects the land 2R4 and the power supply terminal 207. That is, the power feeding lead portion 2Lb3 connects the small land portion 2R42 and the power feeding terminal 207. The power supply lead 2Lb3 and the land lead 2La7 intersect (electrically connected).
The power feeding lead 2Lb4 connects the land 2R3 and the power feeding terminal 209. That is, the small land portion 2R33 and the power supply terminal 209 are connected. The power feeding leads 2Lb5 and 2Lb6 connect the land 2R6 and the power feeding terminal 209. That is, the feeding lead portion 2Lb5 connects the small land portion 2R63 and the feeding terminal 209, and the feeding lead portion 2Lb6 connects the small land portion 2R68 and the feeding terminal 209, respectively.
2. Light-Emitting Module A light-emitting module according to the third embodiment is formed by mounting the LED element 2Dn on the mounting substrate 201 described above. In particular, two types of light emitting modules having different connection forms can be obtained from one mounting substrate 201 by cutting the LED element Dn and the power supply lead 2Lb.
(1) First Connection Form As shown in FIG. 10, all of the LED elements 2Dn are mounted on the land 2Rn in the first mounting form (this mounting pattern becomes the first mounting pattern). It is possible to obtain the light emitting module 211 having a connection configuration of three straight lines.
(2) Second Connection Form As shown in FIG. 12, all of the LED elements 2Dn are mounted on the land 2Rn in the second mounting form (this mounting pattern becomes the second mounting pattern). By cutting a part of the power supply lead 2Lb3, it is possible to obtain the light emitting module 213 having a connection configuration of 6 series.

The cutting is to completely eliminate the continuity, and the wiring pattern 205 (power feeding lead portion 2Lb3) may be cut by dicing or by laser along the arrow in FIG.
3. Conclusion In the third embodiment, six LED elements 2Dn are used, and in each mounting pattern, the mounting forms of all the LED elements 2Dn are the same. Therefore, the LED elements 2Dn are mounted on the mounting substrate 201. At this time, it is not necessary to change the direction of the LED element 2Dn during the mounting, and for example, the LED element 2Dn can be efficiently mounted on the mounting substrate 210.

In addition, since each LED element 2Dn can be mounted so that the center is located on one straight line, it is superior in uniformity and illuminance distribution as a line light source, and it is easy to design and manufacture a lens even when collecting light It becomes.
Further, the connection form switching lands in this example are the lands 2R3 and 2R4.
That is, in the first mounting, the land 2R3 is, as shown in FIG. 11, one of the lead portions 2La2 and 2Lb4 connected to the two small land portions 2R32 and 2R33 connected to the electrode of the LED element 2D3 (here, 2Lb4) is connected to the power supply terminal 209, and in the second mounting, as shown in FIG. 12, connected to the two small land portions 2R37 and 2R38 connected to the electrode of the LED element 2D3. The other ends of the lead portions 2La6 and 2La7 thus connected are the small land portions 2R28 and 2R47 of the lands 2R2 and 2R4 which are other lands.

  In the first mounting, the land 2R4 is, as shown in FIG. 11, one of the lead portions 2Lb3 and 2La3 (here, 2Lb3) connected to the two small land portions 2R42 and 2R43 connected to the electrode of the LED element 2D4. ) Is the power supply terminal 207, and in the second mounting, as shown in FIG. 12, it is connected to the two small land portions 2R47 and 2R48 connected to the electrode of the LED element 2D4. The other ends of the lead portions 2La7 and 2La8 are connected to the small land portions 2R38 and 2R57 of the lands 2R3 and 2R5 which are other lands.

In addition, even if the six LED elements 2Dn are mounted in the same direction, other connection forms different from the connection form described in the third embodiment can be obtained. Even if an element is used, a plurality of connection forms can be obtained with one mounting substrate.
Another connection form different from the connection form described in the third embodiment can be obtained, and an example will be described below as a third modification.

13 and 14 show a light emitting module according to Modification 3 of the third embodiment.
In the light emitting module according to Modification 3, six LED elements 2Dn (n is a natural number of 1 to 6) are mounted on the mounting board 221, and the LED elements 2Dn are mounted using one mounting board 221. When mounted with the first mounting pattern, the light emitting module 223 having the first connection form as shown in FIG. 13 can be obtained. When mounted with the second mounting pattern, the second light emitting module 223 as shown in FIG. A light emitting module 225 in a connected form can be obtained.

The first and second mountings in this modification are the same as those in the third embodiment, but the shape of the wiring pattern, the first and second mounting patterns, and the first and second connection modes. Is different from the third embodiment.
(1) First Connection Form As shown in FIG. 13, all six LED elements 2Dn are each mounted on a land 2Rn (n is a natural number from 1 to 6) in a first mounting form. The Such a mounting pattern of the LED elements 2Dn is defined as a first mounting pattern.

In the first mounting pattern, the LED element 2D1 and the LED element 2D2, the LED element 2D3 and the LED element 2D4, the LED element 2D5 and the LED element 2D6 are connected in series, and three series connection groups are configured. At the same time, these three series connection groups are connected in parallel to form a first connection form of two-by-three series.
(2) Second Connection Form As shown in FIG. 14, all six LED elements 2Dn are each mounted on a land 2Rn (n is a natural number from 1 to 6) in a second mounting form. The Such a mounting pattern of the LED elements 2Dn is defined as a second mounting pattern.

In the second mounting pattern, the six LED elements 2Dn are connected in series from the LED element 2D1 to the LED element 2D6 to form a second connection form of 6 in parallel.
(3) Wiring Pattern The wiring pattern 227 according to Modification 3 is a plurality of (here, six corresponding to the LED elements) lands 2Rn (here n is 1) connected to each LED element 2Dn. Is a natural number of up to 6 and corresponds to “n” of the LED element 2Dn.), A lead portion for supplying power to the LED element 2Dn mounted on the land, and a power supply terminal 207 for receiving power from an external power source, 209.

Each land 2Rn has the same configuration as that of the land in the third embodiment, and the lead portion is the LED in the series connection group in the first and second connection forms, as in the third embodiment. A land lead portion 2La connected in series between the elements and a power supply lead portion 2Lb for connecting the power supply terminals 207, 209 and the LED element 2Dn in the first and second connection modes are provided.
The connection form switching lands in this example are lands 2R2, 2R3, 2R4, and 2R5.

This will be specifically described below.
(A) Land Lead Portions 2La11, 2La12, and 2La13 are connected to LED elements 2D1 and 2D2 when LED elements 2D1 to 2D6 are first mounted as shown in FIG. The element 2D3 and the LED element 2D4 are connected in series, and the LED element 2D5 and the LED element 2D6 are connected in series, respectively.

That is, the land lead portion 2La11 includes the small land portion 2R13 and the small land portion 2R22, the land lead portion 2La12 includes the small land portion 2R33 and the small land portion 2R42, and the land lead portion 2La13 includes the small land portion 2R53 and the small land portion 2R53. The land portion 2R62 is connected.
As shown in FIG. 14, when the LED elements 2D1 to 2D6 are in the second mounting, the land lead portions 2La14 to 2La18 are all connected in series. That is, the land lead portion 2La14 connects the small land portion 2R18 and the small land portion 2R27, the land lead portion 2La15 connects the small land portion 2R28 and the small land portion 2R37, and the land lead portion 2La16 is the small land portion. 2R38 and small land portion 2R47 are connected, land lead portion 2La17 connects small land portion 2R48 and small land portion 2R57, and land lead portion 2La18 connects small land portion 2R58 and small land portion 2R67. To do.
(B) Feeding lead portion As shown in FIGS. 13 and 14, the feeding lead portions 2Lb11 and 2Lb12 include the land 2R1 and the feeding terminal 207, and the feeding lead portion 2Lb13 includes the land 2R3 and the feeding terminal 207. The power supply lead 2Lb14 connects the land 2R5 and the power supply terminal 207, respectively.

  That is, the power supply lead 2Lb11 connects the small land 2R12 and the power supply terminal 207 as shown in FIG. 13, and the power supply lead 2Lb12 is connected to the small land 2R17 and the power supply terminal as shown in FIG. As shown in FIG. 13, the feeding lead portion 2Lb13 connects the small land portion 2R32 and the feeding terminal 207, and the feeding lead portion 2Lb14 is connected to the small land portion as shown in FIG. 2R52 and the power supply terminal 207 are connected.

As shown in FIGS. 13 and 14, the power supply lead 2Lb15 includes the land 2R2 and the power supply terminal 209, the power supply lead 2Lb16 includes the land 2R4 and the power supply terminal 209, and the power supply leads 2Lb17 and 2Lb18. Connects the land 2R6 and the power supply terminal 209, respectively.
That is, as shown in FIG. 13, the power supply lead 2Lb15 connects the small land 2R23 and the power supply terminal 209, and the power supply lead 2Lb16 connects the small land 2R43 and the power supply terminal 209. The lead portion 2Lb17 connects the small land portion 2R63 and the power supply terminal 209, and the power supply lead portion 2Lb18 connects the small land portion 2R68 and the power supply terminal 209 as shown in FIG.

In the wiring pattern 227 on the mounting substrate 221, as shown in FIGS. 13 and 14, the power supply lead 2Lb13 intersects with the land lead 2La15, and the power supply lead 2Lb14 is the land lead 2La17. Intersects.
(4) Light Emitting Module When the six LED elements 2Dn are mounted on the mounting substrate 221 in the first mounting, as shown in FIG. When the LED element 2Dn is implemented in the second mounting, as shown in FIG. 14, by cutting a part of the power supply lead portions 2Lb13 and 2Lb14, it is possible to obtain a light emitting module 225 in a 6-by-1 array.
<Fourth embodiment>
The mounting substrate according to the third embodiment or the third modification is designed to obtain a plurality of types of connection forms by mounting the LED elements in a predetermined direction and performing a process of cutting the wiring pattern. .

In the fourth embodiment, a plurality of types of connection forms are obtained by performing processing for connecting wiring patterns.
In the fourth embodiment, “3” is added to the front of the alphabet to distinguish the light emitting element, land, lead portion, and the like from those of the first embodiment.
1. Mounting Board (1) Overall FIG. 15 is a plan view of a mounting board according to the fourth embodiment.

As shown in FIG. 15, the mounting substrate 301 has a wiring pattern 305 formed on the surface (one main surface) 303 a of a rectangular plate-like substrate body 303. The configuration of the substrate body 303, the formation method of the wiring pattern 305, and the like are basically the same as the formation method of the substrate body 3 and the wiring pattern 5 in the first embodiment.
(2) Wiring pattern The wiring pattern 305 includes a plurality of lands 3Rn (in the present embodiment, n is a natural number from 1 to 12 in the present embodiment). n is a natural number from 1 to 12, and corresponds to 3Dn “n” of the LED element.) and power supply terminals 307, 309, 311, 313, 315, and 317 for receiving power from an external power source , And a lead portion for fixedly or selectively connecting the land 3Rn and the power supply terminals 307 to 317.

  The lead part selects the land lead part 3La for connecting the lands 3Rn in series, the power supply lead part 3Lb for connecting the power supply terminals 307 to 317 and a part of the land 3Rn, and the land 3Rn and the power supply terminals 307 to 317. And a connection lead portion 3Lc for connection. The wiring pattern 305 is formed so that twelve LED elements 3Dn can be mounted in a plurality of connection forms.

  The configuration of the wiring pattern 305 according to the fourth embodiment is the same as that of the land Rn in the first embodiment with respect to the land 3Rn. However, the LED element 3Dn is mounted on the land 3Rn, and the land connecting the lands is connected. The lead portion 3La, the land 3Rn and the power supply terminals 307 to 317 can be selectively connected, or the lands Rn can be selectively connected to each other.

  FIG. 16 is a plan view of the light emitting module according to the fourth embodiment, in which the LED element is mounted in the first connection form. FIG. 17 is a plan view of the light emitting module according to the fourth embodiment, in which the LED element is mounted in the second connection form. FIG. 18 is a plan view of the light emitting module according to the fourth embodiment, in which the LED elements are mounted in a third connection form.

In the fourth embodiment, as in the third embodiment, when the LED element 3Dn is mounted on the land 3Rn, as shown in FIGS. 16 and 17, the N-type electrode has a square shape on the upper right side of the land 3Rn. The first mounting is defined as the second mounting when the N-type electrode is positioned at the lower left corner of the square land 3Rn as shown in the lower left of FIG.
In the first connection mode, as shown in FIG. 16, three LED elements 3D1 to 3D3 are connected in series in the first mounting to form a series connection group, and the three LED elements 3D4 to 3D6 are connected to the first. Are connected in series to form a series connection group, three LED elements 3D7 to 3D9 are connected in series to form a series connection group, and the three LED elements 3D10 to 3D12 are first connected. Are connected in series to form a series connection group, and these four series connection groups are connected in parallel (hereinafter referred to as “three to four in parallel”). At this time, the power supply terminals 313 and 317 are connected to an external power source.

  As shown in FIG. 17, in the second connection mode, twelve LED elements 3Dn are mounted in the first mounting mode using the wiring pattern on the upper side of the mounting substrate 301, and the lead portions are selectively selected. By connecting and cutting the wiring pattern along the broken line shown in the figure, three LED elements 3D1 to 3D3 are connected in series to form a series connection group, and three LED elements 3D4 to 3D6 are connected in series. A series connection group is configured, and these two series connection groups are connected in parallel (hereinafter, referred to as “three-line-two-parallel”). At this time, the power supply terminals 313 and 315 are connected to an external power source.

As shown in FIG. 17, in the third connection mode, three LED elements 3D7 to 3D12 are connected by using the wiring pattern on the lower side of the mounting substrate 301 in addition to the above-described three-line-parallel connection mode. In the first implementation, they are connected in series (one connected in parallel (hereinafter referred to as “6 straight 1 parallel”)). At this time, the power supply terminals 309 and 311 are connected to an external power source.
As shown in FIG. 18, the fourth connection form includes LED elements 3D1 to 3D6 and LED elements 3D10 to 3D12 in the first mounting form, and LED elements 3D7 to 3D9 in the second mounting form. The three LED elements 3D1 to 3D3 and 3D7 to 3D9 are connected in series using the wiring pattern on the left side of the mounting substrate 301 by selectively connecting the parts and cutting the wiring pattern with a broken line shown in FIG. 1 connected in parallel (hereinafter referred to as “6 straight 1 line”). At this time, the power supply terminals 307 and 309 are connected to an external power source.

As shown in FIG. 18, the fifth connection form uses the wiring pattern on the right side of the mounting board 301 in addition to the above-described fourth connection form in parallel with the six series. A series connection group of 3D6 and a series connection group of three LED elements 3D10 to 3D12 are connected in parallel (hereinafter referred to as “three straight two parallels”). At this time, the power supply terminals 313 and 317 are connected to an external power source.
(2-1) Land Each land 3Rn has nine small land portions 3Rnk as in the first embodiment, and the overall shape is substantially square, and four of the small land portions are Connected to different leads. The small land portion 3Rnk has the same shape and size as in the first embodiment, and the small land portion is denoted by the left in FIG. 15 as in the first and second embodiments. The numbers increase from right to left and increase from top to bottom. Note that the position of the N-type electrode in the first mounting and the second mounting is the same as in the third embodiment.
(2-2) Lead part (see FIG. 15)
(A) Land lead portion The land lead portions 3La1 to 2La4 connect the lands 3R1 to 3R3 in series. That is, the land lead portion 3La1 connects the small land portion 3R13 and the small land portion 3R22, the land lead portion 3La2 connects the small land portion 3R23 and the small land portion 3R32, and the land lead portion 3La3 is the small land portion. The portion 3R18 and the small land portion 3R27 are connected, and the land lead portion 3La4 connects the small land portion 3R28 and the small land portion 3R37.

  The land lead portions 3La5 to 2La8 connect the lands 3R4 to 3R6 in series. That is, the land lead portion 3La5 connects the small land portion 3R43 and the small land portion 3R52, the land lead portion 3La6 connects the small land portion 3R53 and the small land portion 3R62, and the land lead portion 3La7 is the small land portion. The portion 3R48 and the small land portion 3R57 are connected, and the land lead portion 3La8 connects the small land portion 3R58 and the small land portion 3R67.

  The land lead portions 3La9 to 2La12 connect the lands 3R7 to 3R9 in series. That is, the land lead portion 3La9 connects the small land portion 3R73 and the small land portion 3R82, the land lead portion 3La10 connects the small land portion 3R83 and the small land portion 3R92, and the land lead portion 3La11 is the small land portion. The portion 3R78 and the small land portion 3R87 are connected, and the land lead portion 3La12 connects the small land portion 3R88 and the small land portion 3R97.

The land lead portions 3La13 to 2La16 connect the lands 3R10 to 3R12 in series. That is, the land lead portion 3La13 connects the small land portion 3R103 and the small land portion 3R112, the land lead portion 3La14 connects the small land portion 3R113 and the small land portion 3R122, and the land lead portion 3La15 is the small land portion. The portion 3R108 and the small land portion 3R117 are connected, and the land lead portion 3La16 connects the small land portion 3R118 and the small land portion 3R127.
(B) Feed Lead Part The feed lead parts 3Lb1 and 3Lb2 connect the land 3R1 and the feed terminal 307. That is, the power supply lead 3Lb1 connects the small land 3R12 and the power supply terminal 307, and the power supply lead 3Lb2 connects the small land 3R17 and the power supply terminal 307.

The power feeding leads 3Lb3 and 3Lb4 connect the land 3R7 and the power feeding terminal 309. That is, the power supply lead 3Lb3 connects the small land 3R72 and the power supply terminal 309, and the power supply lead 3Lb4 connects the small land 3R77 and the power supply terminal 309.
The power feeding leads 3Lb5 and 3Lb6 connect the land 3R6 and the power feeding terminal 315. That is, the power supply lead 3Lb5 connects the small land 3R63 and the power supply terminal 315, and the power supply lead 3Lb6 connects the small land 3R68 and the power supply terminal 315.

The power supply leads 3Lb7 and 3Lb8 connect the land 3R12 and the power supply terminal 317. That is, the power supply lead 3Lb7 connects the small land 3R123 and the power supply terminal 317, and the power supply lead 3Lb8 connects the small land 3R128 and the power supply terminal 317.
(C) Connection lead part The connection lead parts 3Lc1 and 3Lc2 connect the power supply terminals to each other. That is, the connection lead portion 3Lc1 connects the power supply terminals 307 and 313, and the connection lead portion 3Lc2 connects the power supply terminals 311 and 317.

Further, another connecting lead 3Lc is connected to the power supply terminal and is formed so as to be selectively connectable to other power supply terminals other than the power supply terminal to which it is connected.
That is, the connection lead 3Lc3 is connected to the power supply terminal 307 (power supply leads 3Lb1 and 3Lb2 connected to the power supply terminal 307), and the connection lead 3Lc4 is connected to the power supply terminal 309 (power supply connected to the power supply terminal 309). The lead portions 3Lb3 and 3Lb4) are close to each other so that they can be connected, for example, as shown in FIG.

Similarly, the connection lead 3Lc5 is connected to the power supply terminal 315 (the power supply leads 3Lb5 and 3Lb6 connected to the power supply terminal 315), and the connection lead 3Lc6 is connected to the power supply terminal 317 (the power supply terminal 317). The power supply leads 3Lb7 and 3Lb8) are connected to each other as close as possible to connect as shown in FIG. 16, for example.
Further, another connecting lead portion 3Lc includes a series connection group in which a plurality of LED elements (here, three, for example, LED elements 3D1 to 3D3) are connected in series, and another series group. And can be connected in a fixed manner or selectively.

  That is, the connecting lead portion 3Lc7 connects the land 3R3 (the small land portion 3R33 and the small land portion 3R38) located at the end opposite to the power supply terminal 307 in the series connection group including the LED elements 3D1 to 3D3 and the LED. It is connected to the land 3R9 (the small land portion 3R93) located at the end opposite to the power supply terminal 309 in the series connection group composed of the elements 3D7 to 3D9, and a part of the connection lead portion 3Lc7 is connected to the connection lead portion 3Lc4. The connection lead portion 3Lc7 extends so as to be close enough to be connectable, and is extended so that a part of the connection lead portion 3Lc7 can be connected to the connection lead portions 3Lc1 and 3Lc2.

  Similarly, the connecting lead portion 3Lc8 connects the land 3R10 (the small land portion 3R102 and the small land portion 3R107) located at the end opposite to the power supply terminal 317 in the series connection group including the LED elements 3D10 to 3D12. It is connected to a land 3R4 (the small land portion 3R47) located at the end opposite to the power supply terminal 315 in the series connection group composed of the LED elements 3D4 to 3D6, and a part of the connecting lead portion 3Lc8 is connected to the connecting lead portion 3Lc5. And a portion of the connecting lead portion 3Lc8 is extended so that it can be connected to the connecting lead portions 3Lc1 and 3Lc2.

The connecting lead portion 3Lc7 and the connecting lead portion 3Lc8 are formed so as to be close to each other so that they can be connected to each other.
Further, the connecting lead portion 3Lc9 extends so as to be connected to the land 3R4 (the small land portion 3R42) and to be close to the connecting lead portions 3Lc1, 2Lc7, 3Lc8. The connecting lead portion 3Lc10 is connected to the land 3R9 (the small land portion 3R98) and is extended so as to be close to the connecting lead portions 3Lc2, 2Lc7, 3Lc8.
2. Light-Emitting Module A light-emitting module according to the fourth embodiment is configured by mounting the LED element 3Dn on the mounting substrate 301 described above. In particular, a light emitting module having a different connection form can be obtained from one mounting substrate 301 by selectively connecting the mounting form at the time of mounting the LED element 3Dn and the connecting lead portion 3Lc.
(1) First Connection Form As shown in FIG. 16, all the LED elements 3Dn are mounted on the land 3Rn in the first mounting form (this mounting pattern becomes the first mounting pattern) for connection. The lead portions 3Lc3 and 3Lc4 are connected to each other (“3S1” in the drawing), the connecting lead portions 3Lc5 and 3Lc6 are connected to each other (“3S2” in the drawing), and the connecting lead portion 3Lc1 is connected. 3Lc8 and 3lc9 are connected ("3S3" in the figure), and the connecting lead portions 3Lc2 and 3Lc7 are connected to each other ("3S4" in the figure) to form a three-by-four parallel connection configuration. The light emitting module 321 can be obtained. In this case, the power supply terminals 313 and 317 are connected to an external power source.
(2) Second and Third Connection Forms As shown in FIG. 17, the LED elements 3Dn are all mounted on the land 3Rn in the first mounting pattern, and the connection leads 3Lc1 and 3Lc9 are connected to each other (in the drawing The connection lead portions 3Lc5 and 3Lc8 are connected to each other (“3S6” in the figure), and the connection lead portions 3Lc7 and 3Lc8 are connected to each other (“3S7” and “3S7” in the figure). As shown by the broken line in the figure, the connection leads 3Lc7 and 3Lc8 are cut by, for example, dicing, so that the upper part of FIG. Thus, the light emitting module 323 can be obtained in which the lower portion has a 6-line-parallel connection form (third connection form).

In addition, in the case of the second connection configuration in parallel with 3 series, the power supply terminals 313 and 315 are connected to the external power supply, and in the case of the third connection configuration in parallel with 6 series, the power supply terminals 309 and 311 are connected to the external power supply. Is done.
In addition, the mounting substrate 301 shown in FIG. 17 has an upper portion and a lower portion separated by a broken line shown in the drawing, and the connection form is different between the upper and lower portions across the broken line. It is good also as a form.
(3) Fourth and fifth connection forms Among the LED elements 3Dn, the LED elements 3D1 to 3D6 and the LED elements 3D10 to 3D12 are connected to the lands 3R1 to 3R6 and the lands 3R1 to 3R6 in the first mounting form as shown in FIG. 3R10 to 3R12 are mounted, and the remaining LED elements 3D7 to 3D9 are mounted on the lands 3D7 to 3D9 in the second direction (this mounting pattern becomes the second mounting pattern), and the connecting lead portion 3Lc1. , 3Lc8, 3Lc9 are connected (“3S9” in the drawing), the connecting lead portions 3Lc5, 3Lc6 are connected (“3S10” in the drawing), and the connecting lead portions 3Lc7, 3Lc10 are connected to each other. Is connected ("3S11" in the figure), and as shown by the broken line in the figure, for example, by cutting the connecting lead portions 3Lc1 and 3Lc2 by dicing, The light emitting module 325 in which the left side portion of FIG. 18 has a fourth connection configuration of 6 series 1 and the right side portion has a fifth connection configuration of 3 series 2 in parallel can be obtained.

In addition, in the case of the fourth connection configuration of 6 series in the left part, the power supply terminals 307 and 309 are connected to the external power source, and in the case of the fifth connection form of 3 series in the right part, the power supply terminal 313. 317 is connected to an external power source.
Further, the mounting substrate 301 shown in FIG. 18 divides the left side portion and the right side portion by the broken line shown in the figure, and the connection form is different on the left and right across the broken line. good.
3. Summary In the fourth embodiment, the LED lead 3Dn can be mounted in a plurality of connection forms on one mounting substrate 301 by using the connection lead 3Lc. When the pattern is used, different connection forms can be obtained.

In the fourth embodiment, twelve LED elements 3Dn are used. Naturally, a number of LED elements other than twelve may be used, and a plurality of connection forms can be obtained with one mounting board. Can do.
Hereinafter, the connection lead part of the mounting substrate 301 in the fourth embodiment is further cut, that is, the connection lead part is increased, and the connection form that cannot be obtained in the fourth embodiment is modified. This will be described as 4.
(A) Mounting Board FIG. 19 shows a mounting board according to Modification 4 of the fourth embodiment.

The mounting substrate 331 according to Modification 4 includes the 12 lands 3Rn, the power supply terminals 307, 309, 311, 313, 315, and 317, the land lead portion 3La, and the power supply lead portion 3Lb in the fourth embodiment. However, the connecting lead 3Lc is different from that of the fourth embodiment.
That is, as shown in FIG. 19, the connection lead portion 3Lc1 in the fourth embodiment includes two connection leads 3Lc1a connected to the power supply terminal 307 and connection lead 3Lc1b connected to the power supply terminal 313. The connection lead part 3Lc2 in the fourth embodiment is composed of two parts, a connection lead part 3Lc2a connected to the power supply terminal 311 and a connection lead part 3Lc2b connected to the power supply terminal 317. The connection lead part 3Lc7 in the fourth embodiment is composed of two parts, a connection lead part 3Lc7a and a connection lead part 3Lc7b, and the connection lead part 3Lc8 in the fourth embodiment is connected to the connection lead part 3Lc8a. The lead part 3Lc8b is composed of two parts.

Here, the connecting lead portion 3Lc7a is connected to the small land portions 3R33, 3R38 of the land 3R3, and a part thereof extends to the land 3R4 side. The connecting lead portion 3Lc7b is connected to the small land portion 3R93 of the land 3R9, and a part thereof extends to the connecting land 3Lc4 side.
The connecting lead portion 3Lc8a is connected to the small land portion 3R47 of the land 3R4 and extends to the connecting land 3Lc5 side. The connecting lead portion 3Lc8b is connected to the small land portions 3R102 and 3R107 of the land 3R10, and a part thereof extends to the land 3R9 side.
(B) Light-emitting module FIG. 20 is a plan view of a light-emitting module according to Modification 4 of the fourth embodiment.

In the light emitting module 333 according to the modification 4, it is possible to obtain a 12-by-1 parallel connection form in which 12 LED elements 3Dn are connected in series. In this case, the power supply terminals 311 and 313 are connected to an external power source.
Regarding the mounting of the LED element 3Dn in the light emitting module 333, the LED elements 3D1, 3D2, and 3D3 are mounted such that their N-type electrodes are connected to the small land portions 3R12, 3R22, and 3R32 in the lands 3R1, 3R2, and 3R3 (N-type electrodes) LED element 3D4, 3D5, 3D6 is mounted in such a manner that its N-type electrode is connected to small land portions 3R43, 3R53, 3R63 in lands 3R4, 3R5, 3R6. Therefore, the LED elements 3D7, 3D8, and 3D9 have N-type electrodes connected to the small land portions 3R78, 3R88, and 3R98 in the lands 3R7, 3R8, and 3R9. In a mounting form (a form in which the N-type electrode is mounted in the lower center) 3D10, 3D11, and 3D12 are mounted forms in which N-type electrodes are connected to small land portions 3R107, 3R117, and 3R127 in lands 3R10, 3R11, and 3R12 (the second mounted form in the fourth embodiment). And each is done.

As for the connection of the connecting lead portion 3Lc, the connecting lead portions 3Lc1b and 3Lc9 are connected to each other (“3S21” in the drawing), and the connecting lead portions 3Lc2a and 3Lc10 are connected to each other (“3S22” in the drawing). Then, the connection lead portions 3Lc7b and 3Lc8b are connected to each other (“3S23” in the drawing), and the connection lead portions 3Lc7a and 3Lc7b are connected to each other (“3S24” in the drawing). Then, the connecting lead portions 3Lc5 and 3Lc6 are connected (“3S25” in the drawing), and the connecting lead portions 3Lc3 and 3Lc4 are connected (“3S26” in the drawing).
<Modification>
As described above, the mounting substrate according to the present invention and the light emitting module in which the LED element is mounted on the mounting substrate have been described in each of the above embodiments and modifications. Needless to say, it is not limited to.
1. Land (Modification 5)
The land in each of the above-described embodiments and modifications (hereinafter simply referred to as “embodiments and the like”) has a plurality of (specifically, nine) small land portions, but according to the present invention. The land is not particularly limited as long as there are two or more types of light emitting element mounting forms. However, in order to be able to change the mounting position, at least four small land portions connected to the lead portions are necessary.

Hereinafter, as a land modification example (this example is referred to as Modification Example 5), a land having five small land portions will be described. In Modification 5, “4” is added to the front of the alphabet to distinguish the light emitting element, land, lead portion, and the like from those of the first embodiment.
FIG. 21 is a plan view of a mounting substrate having lands according to Modification 5. FIG.

In the mounting substrate 401 according to Modification 5, a wiring pattern 405 having a plurality of (here, nine) lands is formed on the main surface 403 a of the substrate body 403.
Here, the nine lands are formed in a 3 × 3 symmetric matrix, but may be formed in an asymmetric matrix such as 3 × 6, or the entire shape may be linear or curved. Furthermore, it may be formed in a shape that shows characters.

In the following, for convenience of description of the land, 4Rij is used to describe the land formed in a matrix, and “i” indicates the row direction (lateral direction) of the drawing of FIG. "Indicates the column direction (vertical direction) in the drawing of FIG. The LED element mounted on or mounted on the land 4Rij is represented as “4Dij”.
FIG. 22 is an enlarged view of one land.

The land Rij is located at the center of the opposing base portions 4Rija, 4Rijb, small land portions 4Rij1, 4Rij2 extending from the base portion 4Rija, small land portions 4Rij3, 4Rij4 extending from the base portion 4Rijb, and the land 4Rij. It consists of a small land portion 4Rij5.
The base portions 4Rija and 4Rijb are not connected to each other, and the base portions 4Rija and 4Rijb have a “U” shape, the openings are opposed to each other, and the small land portions 4Rijk ( k is a natural number from 1 to 5.) and the land 4Rij has a square shape as a whole.

The small land portions 4Rij1, 4Rij2, 4Rij3, 4Rij4 are formed so as to be point-symmetric with respect to the center of the land 4Rij. The extension amounts of the small land portions 4Rij2 and 4Rij3 from the base portions 4Rija and 4Rijb are larger than the extension amounts of the small land portions 4Rij1 and 4Rij4.
The small land portions 4Rij2 and 4Rij3 have a crank shape sewn between the small land portions 4Rij1, 4Rij3 and 4Rij5. This is to increase the bonding area between the LED element 4Dij and the mounting board by increasing the bonding area between the LED element 4Dij and the mounting board.

FIG. 23 is a diagram illustrating how LED elements are mounted in Modification 5.
In FIG. 23, only the N-type electrode of the LED element 4Dij is shown by cross-hatching so that the positional relationship between the electrode of the LED element 4Dij and the land 4Rij can be understood.
In FIG. 23 (a), the LED element 4Dij has its N-type electrode (cross-hatched portion in the figure) connected to the small land portion 4Rij4 and the P-type electrode (the portion without hatching in the drawing) is the small land. It is connected to the parts 4Rij2 and 4Rij5. In this modification, the mounting of the LED element 4Rij is a first mounting.

In FIG. 23B, the LED element 4Dij has its N-type electrode (cross-hatched part in the figure) connected to the small land part 4Rij1, and the P-type electrode (part without hatching in the figure) has a small land. It is connected to the sections 4Rij3 and 4Rij5. In this modification, the mounting of the LED element 4Rij is a second mounting.
FIG. 24 is a diagram illustrating an example of a connection form according to the fifth modification.

FIG. 24 shows a case where two LED elements are mounted using two lands. FIG. 24A shows an example in which two LED elements 4Dij and 4D (i + 1) j are connected in series. (B) of the figure is an example in which two LED elements 4Dij, 4Di (j + 1) are connected in parallel.
Here, the series direction is the column direction in FIG. 21 (the direction in which the base portions 4Rija and 4Rijb are opposed), and the parallel direction is the row direction in FIG. 21 (the direction orthogonal to the direction in which the base portions 4Rija and 4Rijb are opposed). Show.

In the connection form shown in FIG. 24A, the LED element 4Dij is mounted on the land 4Rij in the first mounting form, and the LED is placed on the land 4R (i + 1) j adjacent to the LED element 4Rij in the series direction. Element 4D (i + 1) j is mounted in the first mounting form.
By mounting the LED elements 4Dij, 4D (i + 1) j on the mounting substrate 401 in this way, a light emitting module having a two-straight (also referred to as two-line, one-line) connection form is obtained.

The base portion 4Rijb of the land 4Rij and the base portion 4R (i + 1) ja of the land 4R (i + 1) j are electrically connected by the connecting portion 4S1. The connecting portion 4S1 is configured by connecting the lands 4Rij and 4R (i + 1) j with, for example, solder, a low-resistance resistance component, and the like, and by using these, the two can be connected in a substantially no-resistance state.
For example, a low resistance chip resistor of several tens of mmΩ or less is used as the low resistance resistance component and is mounted so as to straddle the lands 4Rij and 4R (i + 1) j via a pump or the like.

  In the connection form shown in FIG. 24B, the LED element 4Dij is mounted on the land 4Rij in the first mounting form, and the LED element is placed on the land 4Ri (j + 1) at a position adjacent to the LED element 4Rij in the parallel direction. 4Di (j + 1) is mounted in the first mounting form. As described above, by mounting the LED elements 4Dij, 4Di (j + 1) on the mounting substrate 401, a light emitting module having a connection form of two rows (also referred to as one straight two rows) is obtained.

The base part 4Rij of the land 4Rij and the base part 4Ri (j + 1) a of the land 4Ri (j + 1) are the connection part 4S2, and the base part 4Rijb of the land 4Rij and the base part 4Ri (j + 1) b of the land 4Ri (j + 1) Are electrically connected by the connecting portion 4S3.
FIG. 25 is a diagram illustrating an example of a connection form according to the fifth modification.

  FIG. 25 shows a case where four LED elements are mounted using four lands. FIG. 25A shows four LED elements 4Dij, 4Di (j + 1), 4D (i + 1) j, 4D (i + 1). ) (J + 1) is an example in which two lines and two lines are connected in parallel, and (b) in the figure shows four LED elements 4Dij, 4Di (j + 1), 4D (i + 1) j, 4D (i + 1) (j + 1) in four lines. This is an example of connection in parallel.

In the connection form shown in FIG. 25A, four LED elements 4Dij, 4Di (j + 1), 4D (i + 1) j, 4D (i + 1) (j + 1) are connected to corresponding lands 4Rij, 4Ri (j + 1), 4R ( i + 1) j and 4R (i + 1) (j + 1) are mounted in the first mounting form.
And each land is connected by the connection part. That is, the base part 4Rij of the land 4Rij and the base part 4Ri (j + 1) a of the land 4Ri (j + 1) are the connection part 4S4, the base part 4Rijb of the land 4Rij, and the base part 4R (i + 1) of the land 4R (i + 1) j. ) Ja is the connecting portion 4S5, and the base portion 4Ri (j + 1) b of the land 4Ri (j + 1) and the base portion 4R (i + 1) (j + 1) a of the land 4R (i + 1) (j + 1) are the connecting portion 4S6. The base portion 4R (i + 1) jb of the land 4R (i + 1) j and the base portion 4R (i + 1) (j + 1) b of the land 4R (i + 1) (j + 1) are connected by the connecting portion 4S7. Thereby, the light emitting module which has a 2 * 2 parallel connection form is obtained.

In the connection form shown in FIG. 25B, two LED elements 4Dij, 4D (i + 1) j are mounted on the corresponding lands 4Rij, 4R (i + 1) j in the second mounting form, and two LEDs The elements 4Di (j + 1), 4D (i + 1) (j + 1) are mounted on the corresponding lands 4Ri (j + 1), 4R (i + 1) (j + 1) in the first mounting form.
And each land is connected by connection part 4S4, 4S5, 4S6, 4S7 similarly to (a) of FIG. That is, the base part 4Rij of the land 4Rij and the base part 4Ri (j + 1) a of the land 4Ri (j + 1) are the connection part 4S4, the base part 4Rijb of the land 4Rij, and the base part 4R (i + 1) of the land 4R (i + 1) j. ) Ja is the connecting portion 4S5, and the base portion 4Ri (j + 1) b of the land 4Ri (j + 1) and the base portion 4R (i + 1) (j + 1) a of the land 4R (i + 1) (j + 1) are the connecting portion 4S6. The base portion 4R (i + 1) jb of the land 4R (i + 1) j and the base portion 4R (i + 1) (j + 1) b of the land 4R (i + 1) (j + 1) are connected by the connecting portion 4S7. Thereby, the light emitting module which has the connection form of 4 series 1 parallel is obtained.

FIG. 26 is a diagram illustrating an example of a connection form according to the fifth modification.
In FIG. 26, the second column (j is “2”) of lands 4Rij (i is a natural number from 1 to 6, j is a natural number from 1 to 3) formed in an asymmetric matrix of 6 rows and 3 columns. 6) LED elements 4Di2 (i is a natural number from 1 to 6) are mounted in the first mounting form, and a plurality of predetermined lands are connected by connecting portions. The light emitting module of the connection form of 3 series 2 parallel is shown.

The land connection will be described below.
The lands 4R13, 4R23, 4R33, 4R43 are connected by the connecting portions 4S10, 4S11, 4S12, the lands 4R12, 4R22, 4R32 are connected by the connecting portions 4S13, 4S14, the lands 4R42, 4R52, 4R62 are connected by the connecting portions 4S15, 4S16, and the lands 4R31, 4R41. , 4R51, 4R61 are connected by connecting portions 4S17, 4S18, 4S19, lands 4R12, 4R13 are connected by connecting portion 4S20, lands 4R42, 4R43 are connected by connecting portion 4S21, lands 4R61, 4R62 are connected by connecting portion 4S22, and lands 4R31, 4R32 are connected. These are connected by the unit 4S23.

In addition, the lands 4R13, 4R23, 4R33, 4R41, 4R51, 4R61 have the base portions of the lands connected to each other by connecting portions 4S31, 4S32, 4S33, 4S34, 4S35, 4S36.
Thereby, the light emitting module of the connection form which connected the 1st series connection group which consists of LED element 4D12, 4D22, 4D32 and the 2nd series connection group which consists of LED element 4D42, 4D52, 4D62 in parallel is obtained.
2. Light emitting element (Modification 6)
The light-emitting element in the above embodiment and the like uses a type having a square bottom surface and an N-type electrode at one corner (this type is referred to as “type 1”). It may be of a type other than 1.

Hereinafter, various types of light-emitting elements will be described as modifications of the light-emitting element (this example is referred to as Modification 6). In Modification 6, “5” is added to the front of the alphabet to distinguish the light emitting element, land, lead portion, and the like from those of the first embodiment. In addition, a number indicating the type of the light emitting element is added after the alphabet so that it is clear that this is a modification of the type of the light emitting element.
(1) Type 2 (Modification 6-1)
FIG. 27A is a bottom view of the LED element according to Modification 6-1, and FIG. 27B is a plan view of a wiring pattern according to Modification 6-1. In (a), cross-hatching or black painting is performed so that the electrode on the bottom surface of the LED element can be seen.

The LED element 5D2 according to the modified example 6-1 has a substantially square bottom surface, and a line segment connecting midpoints of opposite sides as a boundary, one side (left side in the figure) being an N-type electrode and the other Each side is a P-type electrode. That is, the left half of the bottom surface is an N-type electrode and the right half is a P-type electrode.
A wiring pattern 501 for mounting the type 2 LED element 5D2 includes power supply terminals 503 and 505 and a plurality (here, six) of lands 5R2n (n is a natural number from 1 to 6). A land lead portion for connecting the lands 5R2n, and a power supply lead portion for connecting the power supply terminals 503 and 505 to a part of the lands 5R2n.

Note that “2” after the alphabet (for example, R or L) in the reference numerals of the land 5R2n, the land portion 5R2nk, the land lead portion 5L2a, the power feeding lead portion 5L2b, etc., as described above. It means “2” of type 2 of the LED element in the example.
(A) Land The land 5R2n has a plurality of, for example, six small land portions 5R2nk (k is a natural number from 1 to 6) as shown in FIG. (Not electrically connected.) Each small land portion 5R2nk has a rectangular shape having substantially the same size. In this rectangular shape, the short side is shorter than the half length of one side of the LED element 5D2, and the long side is longer than the half length of one side of the LED element 5D2.

As in the first and second embodiments, the sign “k” of the small land portion 5R2nk is from left to right of each land 5R2n as shown in the land 5R21 of FIG. 27B. The numbers increase and the numbers increase from top to bottom.
(B) Land Lead 5L2a1 is a land 5R21 small land 5R212 and a land 5R22 small land 5R221, and a land lead 5L2a2 is a land 5R22 small land 5R222 and a land 5R23 small land. The land lead portion 5L2a3 is the small land portion 5R242 of the land 5R24 and the small land portion 5R251 of the land 5R25, and the land lead portion 5L2a4 is the small land portion 5R252 of the land 5R25 and the small land portion 5R261 of the land 5R26. Are connected to each other.

  The land lead portion 5L2a5 includes a small land portion 5R216 of the land 5R21 and a small land portion 5R225 of the land 5R22. The land lead portion 5L2a6 includes a small land portion 5R226 of the land 5R22 and a small land portion 5R235 of the land 5R23. The land lead portion 5L2a7 includes the small land portion 5R246 of the land 5R24 and the small land portion 5R255 of the land 5R25, and the land lead portion 5L2a8 includes the small land portion 5R256 of the land 5R25 and the small land portion 5R265 of the land 5R26. Connect each.

The land lead portion 5L2a9 connects the small land portion 5R236 of the land 5R23 and the small land portion 5R241 of the land 5R24.
(C) Feed Lead Part The feed lead part 5L2b1 feeds the feed terminal 503 and the small land part 5R211 of the land 5R21, and the feed lead part 5L2b2 feeds the feed terminal 503 and the small land part 5R215 of the land 5R21. The part 5L2b3 connects the power supply terminal 503 and the small land part 5R245 of the land 5R24, respectively.

The feeding lead portion 5L2b4 is a feeding terminal 505 and a small land portion 5R232 of the land 5R23, the feeding lead portion 5L2b5 is a feeding terminal 505 and a small land portion 5R262 of the land 5R26, and the feeding lead portion 5L2b6 is a feeding terminal 505. The small land portion 5R266 of the land 5R26 is connected to each other.
The connection form switching lands in this example are lands 5R23 and 5R24.
(D) Light emitting module FIG. 28 is a plan view of a light emitting module according to Modification 6-1. In FIG. 28, the substrate main body is not shown.

In the light emitting module according to the modified example 6-1, as shown in FIG. 28 (a), two series connection groups configured by connecting three LED elements 5D2n in series are connected in parallel. A connection form can be obtained.
With respect to the mounting of the LED element 5D2n, the three LED elements 5D21 to 5D23 are mounted at positions above the lands 5R21 to 5R23 with the N-type electrode of each element facing to the left (this mounting is the first mounting). The remaining three LED elements 5D24 to 5D26 are mounted at positions below the lands 5R24 to 5R26 (this mounting is the second mounting).

  That is, the N-type electrodes of the LED elements 5D21, 5D22, and 5D23 are mounted on the small land portions 5R211 and 5R213 of the land 5R21, the small land portions 5R221 and 5R223 of the land 5R22, and the small land portions 5R231 and 5R233 of the land 5R23, respectively. The P-type electrodes are mounted on the small land portions 5R212 and 5R214 of the land 5R21, on the small land portions 5R222 and 5R224 of the land 5R22, and on the small land portions 5R232 and 5R234 of the land 5R23, respectively.

  The N-type electrodes of the LED elements 5D24, 5D25, and 5D26 are mounted on the small land portions 5R243 and 5R245 of the land 5R24, the small land portions 5R253 and 5R255 of the land 5R25, and the small land portions 5R263 and 5R265 of the land 5R26, respectively. The P-type electrodes are mounted on the small land portions 5R244 and 5R246 of the land 5R24, on the small land portions 5R254 and 5R256 of the land 5R25, and on the small land portions 5R264 and 5R266 of the land 5R26 (this mounting pattern is the first mounting pattern). It becomes a mounting pattern.)

  Accordingly, the power feeding terminal 503, the power feeding lead portion 5L2b1, the LED element 5D21, the land lead portion 5L2a1, the LED element 5D22, the land lead portion 5L2a2, the LED element 5D23, the power feeding lead portion 5L2b4, and the first power feeding terminal 505. From the power supply terminal 503, the power supply lead part 5L2b3, the LED element 5D24, the land lead part 5L2a7, the LED element 5D25, the land lead part 5L2a8, the LED element 5D26, the power supply lead part 5L2b6, and the power supply terminal 505 The second series connection group is connected in parallel (this connection form is the “first connection form”).

In the light emitting module according to the modified example 6-1, as shown in FIG. 28 (b), it is possible to obtain a 6-by-1 parallel connection configuration in which three LED elements 5D2n are connected in series.
Regarding the mounting of the LED element 5D2n, the three LED elements 5D21 to 5D23 are mounted at positions below the lands 5R21 to 5R23 with the N-type electrode of each element facing left (second mounting). The remaining three LED elements 5D24 to 5D26 are mounted at positions above the lands 5R24 to 5R26 (first mounting).

  That is, the N-type electrodes of the LED elements 5D21, 5D22, and 5D23 are mounted on the small land portions 5R213 and 5R215 of the land 5R21, the small land portions 5R223 and 5R225 of the land 5R22, and the small land portions 5R233 and 5R235 of the land 5R23, respectively. The P-type electrodes are mounted on the small land portions 5R214 and 5R216 of the land 5R21, on the small land portions 5R224 and 5R226 of the land 5R22, and on the small land portions 5R234 and 5R236 of the land 5R23, respectively.

  The N-type electrodes of the LED elements 5D24, 5D25, and 5D26 are mounted on the small land portions 5R241 and 5R243 of the land 5R24, the small land portions 5R251 and 5R253 of the land 5R25, and the small land portions 5R261 and 5R263 of the land 5R26, respectively. The P-type electrodes are mounted on the small land portions 5R242 and 5R244 of the land 5R24, on the small land portions 5R252 and 5R254 of the land 5R25, and on the small land portions 5R262 and 5R264 of the land 5R26 (this mounting pattern is the second pattern). Mounting pattern.)

Accordingly, the power supply terminal 503, the power supply lead portion 5L2b2, the LED element 5D21, the land lead portion 5L2a5, the LED element 5D22, the land lead portion 5L2a6, the LED element 5D23, the land lead portion 5L2a9, the LED element 5D24, and the land lead. The unit 5L2a3, the LED element 5D25, the land lead 5L2a4, the LED element 5D26, the power supply lead 5L2b5, and the power supply terminal 505 are connected in series (this connection form is “second connection form” ”.)
(2) Type 3 (Modification 6-2)
29A is a bottom view of the LED element according to Modification 6-2, FIG. 29B is a plan view of a wiring pattern according to Modification 6-2, and FIGS. It is a figure explaining a mounting state. In (a), cross-hatching or black painting is performed so that the electrode on the bottom surface of the LED element can be seen.

The LED element 5D3n according to the modified example 6-2 has a substantially square bottom surface, a rectangular part facing an intermediate part of one side is an N-type electrode, and the other part is a P-type electrode. Yes.
The land 5R3n for mounting the type 3 LED element 5D3n has a plurality of, for example, nine small land portions 5R3nk (k is a natural number from 1 to 9), as shown in FIG. And each is independent (not electrically connected).

As in the first and second embodiments, the sign “k” of the small land portion 5R3nk is from left to right of each land 5R3n as shown by the land 5R3n in FIG. 29B. The numbers increase and the numbers increase from top to bottom.
Further, “3” after the alphabet (for example, R or L) in the symbols such as the land 5R3n and the land portion 5R3nk means “3” of the LED element type 3 in this modification.

  The small land portions 5R3n2 and 5R3n8 have a rectangular shape that is substantially the same size as the N-type electrode of the LED element 5D3n. The small land portions 5R3n1, 5R3n3, 5R3n7, and 5R3n9 are also rectangular. This rectangular long side is the distance between the two sides connected to one side facing the N-type electrode of the LED element 5D3n and the ends facing the two sides of the N-type electrode (in FIG. 29 (a)). The longer side and the shorter side are the distance between the side facing the N-type electrode of the LED element 5D3n and the end of the N-type electrode opposite to the one side (see FIG. 29). It is substantially the same dimension as “L3” in (a).

  Each small land portion 5R3n5 is also rectangular. The rectangular short side is substantially equal to the rectangular long side of the small land portions 5R3n2 and 5R3n8, and the long side is a side facing the one side with respect to the side facing the N-type electrode of the LED element 5D3n. To the end of the N-type electrode facing the one side (“L4” in FIG. 29A). The dimension is longer than the distance obtained by subtracting.

The small land portions 5R3n4 and 5R3n6 are also rectangular. In this rectangular shape, the long sides of the small land portions 5R3n1, 5R3n3, 5R3n7, and 5R3n9 are short sides, and the long sides of the small land portions 5R3n5 are long sides.
For mounting the LED element 5D3n, the N-type electrode of each element is connected to the small land portions 5R3n2 and 5R3n8. In other words, the N-type electrode of each LED element 5D3n is mounted so as to be connected to the small land portion 5R3n8 of the land 5R3n in the downward direction, as shown in FIG. 29 (c). In addition, the N-type electrode of the LED element 5D3n is mounted so as to be connected to the small land portion 5R3n2 of the land 5R3n in the upper direction as shown in FIG. (This mounting is the second mounting.)

Note that the vertical direction here is the direction perpendicular to the direction in which adjacent lands 5R3 (n-1), 5R3n, 5R3 (n + 1) are connected in series by the land lead portion 5L3a.
(3) Type 4 (Modification 6-3)
30A is a bottom view of the LED element according to Modification 6-3, FIG. 30B is a plan view of a wiring pattern according to Modification 6-3, and FIGS. It is a figure explaining a mounting state. In (a), cross-hatching or black painting is performed so that the electrode on the bottom surface of the LED element can be seen.

The LED element 5D4n according to Modification 6-3 has a substantially square bottom surface, an N-type electrode at the center, and a P-type electrode at the other part. The N-type electrode has a circular shape here.
The land 5R4n for mounting the type 4 LED element 5D4n has a plurality of, for example, six small land portions 5R4nk (k is a natural number from 1 to 6), as shown in FIG. And each is independent (not electrically connected).

As in the first and second embodiments, the sign “k” of the small land portion 5R4nk is from left to right of each land 5R4n as shown in the land 5R4n in FIG. The numbers increase and the numbers increase from top to bottom.
Further, “4” after the alphabet (for example, R or L) in the symbols such as the land 5R4n and the land portion 5R4nk means “4” of the LED element type 4 in the present modification.

Each small land portion 5R4nk has a rectangular shape.
In the rectangular shape of the small land portions 5R4n2 and 5R4n5, the diameter of the N-type electrode of the LED element 5D4n (“D1” in FIG. 30A) is a short side, and from the length of one side of the LED element, The long side has a dimension longer than the distance to the end far from the one side of the N-type electrode (“L5” in FIG. 30A).

  The small land portions 5R4n1, 5R4n3, 5R3n4, and 5R3n6 have a rectangular shape with the same size. The long side of this rectangular shape has the same dimensions as the long sides of the small land portions 5R4n2 and 5R4n5, and the short side corresponds to the land 5R4n plane when the N-type electrode of the LED element 5D4n is mounted on the small land portions 5R4n2 and 5R4n5. When viewed, the small land portions 5R4n1, 5R4n3, 5R3n4, and 5R3n6 are determined to have a larger area than the LED element 5D4n. That is, a value larger than the value obtained by subtracting the diameter (D1) of the N-type electrode from one side of the LED element 5D4n and dividing by 2 (corresponding to “L6” in FIG. 30A) is shorter. The dimensions are as follows.

In FIG. 30, bumps for mounting the LED elements 5D4n are mounted (mounted) in advance on the small land portions 5R4nk.
The LED element 5D4n is mounted such that the N-type electrode of each element is connected to the small land portions 5R4n2 and 5R4n5. That is, as shown in FIG. 30C, the N-type electrode of each element is mounted so as to be connected to the upper side (small land portion 5R4n2) of the land 5R4n (first mounting). Further, as shown in FIG. 30D, the N-type electrode of each element is mounted on the lower side (small land portion 5R4n5) of the land 5R4n (second mounting).

Note that the vertical direction here is the direction perpendicular to the direction in which the adjacent lands 5R4 (n-1), 5R4n, 5R4 (n + 1) are connected by the land lead portions 5L4a.
3. Land and light emitting element (Modification 7)
In the modified example 5 and the modified example 6, the light emitting elements having different land configurations and types from the embodiment have been described. However, the light emitting element type and the land structure correspond to each other. A land on which the light emitting element can be mounted will be described below as a seventh modification.

FIG. 31A is a plan view of a land according to the modified example 7. FIG.
As shown in the figure, the land 6Rn according to the modified example 7 includes a plurality of, for example, 36 small land portions 6Rnij (i, j are natural numbers from 1 to 6) formed in a matrix of 6 rows and 6 columns. Each) is independent (not electrically connected).
The land 6Rn has a square shape as a whole, and two lead portions 6L are connected to small land portions corresponding to two opposing sides. That is, four different lead portions are connected to four small land portions.

More specifically, the lead portion 6L is formed by the small land portions 6Rn11, 6Rn14, 6Rn63, and 6Rn66 of the small land portions 6Rn1j and 6Rn6j (j is a natural number from 1 to 6) corresponding to the two opposite sides. It is connected.
31 (b) is a plan view when a type 1 light emitting element is mounted, and FIG. 31 (c) is a plan view when a type 2 light emitting element is mounted, and FIG. 31 (d). These are top views at the time of mounting a type 3 light emitting element.

As shown in (b) to (d) of FIG. 31, the LED elements of types 1 to 3 described in the modification 6 can be mounted on the land Rn.
4). Combination (Modification 8)
In the above embodiments and the like, one wiring pattern is provided on the substrate, but two or more wiring patterns may be combined on the substrate. Hereinafter, a combined example will be described as a modified example 8.

FIG. 32 is a plan view of a mounting board according to Modification 8-1.
A mounting substrate 701 according to Modification 8-1 includes a wiring pattern 705 on the surface 703 a of the substrate body 703.
The wiring pattern 705 is a combination of the two wiring patterns 5 described in the first embodiment. In order to distinguish between the two wiring patterns, the reference numeral of one wiring pattern is “5a”, and the other wiring pattern The pattern code is “5b”.

As shown in FIG. 32, the wiring pattern 5a and the wiring pattern 5b are connected to the power supply terminal 9a and the power supply terminal 9b by a connection lead 707a and from the power supply terminal 11a and the power supply terminal 11b by a connection lead 707b, respectively. Has been.
The connection lead portion 707a is connected to the power supply lead portions Lb1a and Lb2a and the power supply lead portions Lb1b and Lb2b, and the connection lead portion 707b is connected to the power supply lead portions Lb4a, Lb5a and Lb6a. The power supply leads Lb4b, Lb5b, and Lb6b are connected.

  In such a mounting board 701, for example, the connection form can be used as a mounting board for three-by-four and six-to-two parallel, and a broken lead arrow 707a shown in FIG. , 70b can be used as mounting boards for 6 series and 1 series and 3 series and 2 series as in the first embodiment. Further, by cutting only the connecting lead portion 707a, it can be used as a mounting substrate for 12 straight lines.

FIG. 33 is a plan view of a mounting board according to Modification 8-2.
A mounting substrate 711 according to Modification 8-2 includes a wiring pattern 715 on the surface 713a of the substrate body 713.
The wiring pattern 715 is a combination of the two wiring patterns 205 described in the third embodiment. In order to distinguish between the two wiring patterns, the reference numeral of one wiring pattern is “205a” and the other wiring pattern is used. The pattern code is “205b”.

As shown in FIG. 33, the wiring pattern 205a and the wiring pattern 205b are connected to the power supply terminal 207a and the power supply terminal 207b by the connection lead 717a and from the power supply terminal 209a and the power supply terminal 209b by the connection lead 717b, respectively. Has been.
The connection lead portion 717a is connected to the power supply lead portions 2Lb1a, 2Lb2a, 2Lb3a and the power supply lead portions 2Lb1b, 2Lb2b, 2Lb3b, and the connection lead portion 717b is connected to the power supply lead portions 2Lb4a, 2Lb5a. , 2Lb6a and the power supply leads 2Lb4b, 2Lb5b, 2Lb6b.

FIG. 34 is a plan view of a light emitting module according to Modification 8-2.
In the mounting substrate 711, all of the six LED elements 7Dna (n is a natural number from 1 to 6) and the six LED elements 7Dnb (n is a natural number from 1 to 6) are used. By setting it as the 1st mounting pattern mounted by the 1st mounting form, the light emitting module of 3 series 4 parallel can be obtained. In this case, the power supply terminal is one of the power supply terminals 207a and 207b and one of the power supply terminals 209a and 209b.

Further, by cutting the connecting lead portions 717a and 717b with broken arrows shown in the figure, two independent three-line and two-sided light emitting modules can be obtained independently.
FIG. 35 is a plan view of a light emitting module according to Modification 8-2.
In the mounting substrate 711, all of the six LED elements 7Dna (n is a natural number from 1 to 6) and the six LED elements 7Dnb (n is a natural number from 1 to 6) are used. By setting the second mounting pattern to be mounted in the second mounting form, it is possible to obtain a 6-by-2 parallel light emitting module. In this case, the power supply terminal is one of the power supply terminals 207a and 207b and one of the power supply terminals 209a and 209b.

In addition, by cutting the power supply lead 2Lb3a and the connection leads 717a and 717b with a broken line arrow and further cutting the power supply lead 2Lb3b with a broken line arrow shown in FIG. Two light emitting modules in a row can be obtained.
FIG. 36 is a plan view of a mounting board according to Modification 8-3.
The mounting board 721 according to the modified example 8-3 includes a wiring pattern 725 on the surface 723a of the board body 723.

The wiring pattern 725 is a combination of two wiring patterns 715 according to the modified example 8-2. In such a mounting substrate 721, the connection form described in the light emitting module according to Modification 8-2 can be obtained, and the connection form described in the light emission module according to Modification 8-2 can be independently provided. You can get one.
Further, when the substrate for mounting 721 is cut by a broken arrow shown in the figure, two mounting substrates 711 shown in FIG. 33 can be obtained.

  INDUSTRIAL APPLICABILITY The present invention can be used for a mounting substrate having two or more types of connection configurations of light emitting elements and a light emitting module in which the light emitting elements are mounted on the mounting substrate.

It is a top view of the mounting board | substrate which concerns on 1st Embodiment. It is a top view of the light emitting module which concerns on 1st Embodiment, and is a case where an LED element is mounted with the 1st connection form. It is a top view of the light emitting module which concerns on 1st Embodiment, and is a case where an LED element is mounted by the 2nd connection form. The light emitting module which concerns on the modification 1-2 of 1st Embodiment is shown. It is a top view of the mounting board | substrate which concerns on 2nd Embodiment. It is a top view of the light emitting module which concerns on 2nd Embodiment, and is a case where an LED element is mounted with the 1st connection form. It is a top view of the light emitting module which concerns on 2nd Embodiment, and is a case where an LED element is mounted with the 2nd connection form. It is a top view of the light emitting module which concerns on 2nd Embodiment, and is a case where an LED element is mounted by the 2nd connection form. The mounting board | substrate and light emitting module which concern on the modification 2-1 are shown. It is a top view of the mounting board | substrate which concerns on 3rd Embodiment. It is a top view of the light emitting module which concerns on 3rd Embodiment, and is a case where an LED element is mounted with the 1st connection form. It is a top view of the light emitting module which concerns on 3rd Embodiment, and is a case where an LED element is mounted with the 2nd connection form. The light emitting module which concerns on the modification 3-1 of 3rd Embodiment is shown. The light emitting module which concerns on the modification 3-1 of 3rd Embodiment is shown. It is a top view of the mounting board | substrate which concerns on 4th Embodiment. It is a top view of the light emitting module which concerns on 4th Embodiment, and is a case where LED element 3Dn is mounted with the 1st connection form. It is a top view of the light emitting module which concerns on 4th Embodiment, and is a case where LED element 3Dn is mounted with the 1st connection form. It is a top view of the light emitting module which concerns on 4th Embodiment, and is a case where an LED element is mounted with the 3rd connection form. 10 shows a mounting board according to a fourth modification of the fourth embodiment. It is a top view of the light emitting module which concerns on the modification 4 of 4th Embodiment. FIG. 10 is a plan view of a mounting board having lands according to Modification 5. It is an enlarged view of one land. It is a figure which shows the mode of the mounting of the LED element in the modification 5. It is a figure which shows an example of the connection form which concerns on the modification 5. FIG. It is a figure which shows an example of the connection form which concerns on the modification 5. FIG. It is a figure which shows an example of the connection form which concerns on the modification 5. FIG. (A) is a bottom view of the LED element according to Modification 6-1, and (b) is a plan view of a wiring pattern according to Modification 6-1. It is a top view of the light emitting module concerning modification 6-1. (A) is a bottom view of the LED element according to modification 6-2, (b) is a plan view of a wiring pattern according to modification 6-2, and (c) and (d) show the mounting state of the LED element. It is a figure explaining. (A) is a bottom view of the LED element according to Modification 6-3, (b) is a plan view of a wiring pattern according to Modification 6-3, and (c) and (d) show the mounting state of the LED element. It is a figure explaining. (A) is a top view of the land which concerns on the modification 7, (b) is a top view at the time of mounting a type 1 light emitting element, (c) is the case at the time of mounting a type 2 light emitting element. It is a top view, (d) is a top view at the time of mounting a type 3 light emitting element. It is a top view of the mounting board | substrate which concerns on the modified example 8-1. It is a top view of the board | substrate for mounting which concerns on the modification 8-2. It is a top view of the light emitting module concerning modification 8-2. It is a top view of the light emitting module concerning modification 8-2. It is a top view of the board | substrate for mounting which concerns on the modification 8-3.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Mounting board 5 Wiring pattern 9, 11 Feed terminal 13, 15 Light emitting module Dn LED element Rn Land Rnk Small land part La Land lead part Lb Feeding lead part 101 Mounting board 105 Wiring pattern 107, 109, 111 Feed terminal 113, 115 Light emitting module 1Dn LED element 1Rn Land 1Rnk Small land portion 1La Land lead portion 1Lb Power feeding lead portion 201 Mounting substrate 205 Wiring pattern 207, 209 Power feeding terminal 211, 213 Light emitting module 2Dn LED element 2Rn Land 2Rnk Small land portion 2La Land lead part 2Lb Power supply lead part 301 Mounting substrate 305 Wiring pattern 307, 309, 311 Power supply terminal 313, 315, 317 Power supply terminal 321, 323, 325 Light emitting module 3DN LED element 3Rn land 3Rnk small land portion 3La land lead portion 3Lb power supply leads 3Lc connecting leads

Claims (8)

Light emission having a wiring pattern composed of a plurality of lands on which each of a plurality of light emitting elements each including two electrodes is mounted, a power supply terminal connected to an external power source, and a lead portion for supplying power to the light emitting elements through each land. An element mounting board,
Each land is composed of small land parts divided into four or more,
Each light emitting element is mounted on a land in a first mounting in which two electrodes of the light emitting element are connected to predetermined two small land parts among the four or more small land parts, and the light emission. In any form of the second mounting, two electrodes of the element are connected to two small land portions other than the predetermined two small land portions,
One end of a different lead portion is connected to each of the two small land portions connected to the electrode of the light emitting element in the first mounting and to the two small land portions connected to the electrode of the light emitting element in the second mounting. ,
Among the plurality of lands, the connection destination of one other end of the lead portion connected to the two small land portions connected to the electrode of the light emitting element in the first mounting is a power supply terminal, and the second land The connection form switching land is included in which the other end of the lead connected to the two small lands connected to the electrode of the light emitting element in mounting is the small land of the other land. Mounting board. Among the plurality of lands, in addition to the connection form switching land, the connection destination of one other end of the lead portion connected to the two small land portions connected to the electrode of the light emitting element in the second mounting Is a power supply terminal, and the connection destination of the other end of the lead portion connected to the two small land portions connected to the electrodes of the light emitting element in the first mounting is a small land portion of another land. The mounting board according to claim 1, further comprising a land. In the plurality of lands, when the mounting form of the light emitting element is the same, the light emitting element mounted on the land and the light emitting element mounted on the land adjacent to the land are connected in series. The mounting substrate according to claim 1, wherein the land includes a land in which the small land portion of the land is connected to the small land portion of the adjacent land via the lead portion. When the number of lands is 2N (N is a natural number), the Nth land and the (N + 1) th land are connection form switching lands,
When light emitting elements are mounted on all lands in the first mounting pattern, all the light emitting elements are connected in series to the power supply terminals,
When light emitting elements are mounted on all lands in the second mounting pattern, a series connection group of light emitting elements mounted on the 1st to Nth lands and light emitting elements mounted on the (N + 1) th to 2N lands. The mounting substrate according to claim 3, wherein the mounting substrate is connected in parallel with the series connection group. When the number of lands is A × B (both A and B are natural numbers of 2 or more), the A × i-th land and the A × i + 1-th (i is a natural number from 1 to (B−1)). ) Is the connection mode switching land,
When light emitting elements are mounted on all lands in the first mounting pattern, all the light emitting elements are connected in series to the power supply terminals,
When the light emitting elements are mounted on all lands in the second mounting pattern, the lands of A × k + 1 to A × (k + 1) th (k is a natural number from 0 to (B−1)). The mounting substrate according to claim 3, wherein a series connection group of B light emitting elements to be mounted is connected in parallel. In a light emitting module in which the plurality of light emitting elements are mounted on a mounting substrate having a wiring pattern electrically connected to the plurality of light emitting elements having two electrodes on the bottom surface,
The said mounting substrate is a mounting substrate of any one of Claims 1-5. The light emitting module characterized by the above-mentioned. The light emitting module according to claim 6, wherein a part of the lead portion is electrically disconnected. The light emitting module according to claim 6 or 7, wherein a part of the lead part is electrically connected to another lead part.

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