TWI396018B - Frame structure of backlight module - Google Patents

Description

Backlight module frame structure

The invention relates to a frame structure, in particular to a frame structure of a backlight module.

With the rapid development of electronic technology, the development of various forms of electronic products has now turned to a variety of design trends, and the development and design of thin and light electronic products has become the mainstream in the market. Since the liquid crystal display has the advantages of lightness, power saving, and no amplitude, it is currently widely used in notebook computers, personal digital assistants (PDAs), digital cameras, video cameras, and mobile phones. Telephones, handheld game consoles and other electronic products, so that these electronic products can achieve the requirements of lightweight.

The liquid crystal display (LCD) is composed of a liquid crystal display module (LCM) and a backlight module (Backlight Module). Since the liquid crystal display module itself does not have a light-emitting property, it is good. The display effect needs to provide a backlight with a sufficient brightness and uniform distribution of the liquid crystal display module by the backlight module, so as to achieve a good display effect of the liquid crystal display module. Among them, depending on the position of the backlight, the backlight module can be divided into a side-mounted backlight module and a direct-lit backlight module.

For example, in a side-mounted backlight module, a backlight (such as a cold cathode tube (CCFL) or a light-emitting diode (LED)), a backlight holder, a light guide plate, and an optical film (for example, diffusion) are generally included. Pieces, cymbals, etc.) and plastic frame and other components. The plastic frame forms an internal space for carrying a backlight, a backlight holder, a light guide plate, and an optical film. The backlight is disposed in the backlight holder, and is fixed on the plastic frame by the backlight fixing frame, wherein the backlight fixing frame is assembled on the plastic frame, and is respectively disposed on two opposite sides of the plastic frame Opening a screw hole, and providing a perforation corresponding to the screw hole of the plastic frame on the backlight holder, and then threading through the through hole of the backlight holder and locking into the screw hole of the plastic frame to make the backlight The source holder is fixed on the plastic frame to prevent the backlight holder from falling off the plastic frame, and the backlight can be stably disposed in the frame edge of the plastic frame.

Although the arrangement of the backlight holder and the plastic frame can be prevented by the screw locking method, due to the assembly method of the backlight holder, the operator should align the screws one by one with the perforation of the backlight holder. , and then locked in the screw hole of the plastic frame, so it takes a lot of manpower and material resources (such as the use of screws and other materials) to complete the assembly work, resulting in the assembly of the backlight module in the backlight holder and the plastic frame. There are problems that the program is too complicated and the manufacturing cost cannot be reduced.

In view of the above problems, the present invention provides a frame structure of a backlight module, which solves the problem that the assembly procedure between the backlight holder and the plastic frame of the conventional backlight module is too complicated, and the assembly of the backlight holder is It takes a lot of manpower and material resources, which leads to the problem that the production and manufacturing cost of the backlight module cannot be reduced.

The invention discloses a frame structure of a backlight module, which comprises a frame body and a backlight source holder. The frame body has two fastening grooves, and the two fastening grooves are respectively located on the two outer side edges of the frame body. The backlight holder has two fastening members, each of the fastening members has a vertical section and a limiting section, one end of the vertical section is connected to the backlight fixing bracket, and the other end is connected with the limiting section, and the second fastening component is connected. Corresponding to the two fastening slots of the frame respectively. When the backlight holder is disposed on the frame, the two limiting segments are respectively fastened to the two fastening slots to prevent the backlight holder from being detached from the frame.

The invention also discloses a frame structure of a backlight module, which comprises a frame body and a backlight source holder. The two outer side edges of the frame body respectively have a first fastening groove and a second fastening groove, and the first fastening groove is disposed on the edge of one of the outer sides, and the second fastening groove is The second fastening groove has a locking portion and an extending portion, and the width of the locking portion is greater than the width of the extending portion. The backlight holder has a first fastening component and a second fastening component. The first fastening component and the second fastening component have a vertical section and a limiting section, and one end of the vertical section is connected to the backlight. The source holder is attached to the limit segment at the other end. The vertical portion of the first fastening member has an angle of less than or equal to 90 degrees between the vertical segment and the limiting portion, and the width of the limiting portion of the second fastening member is greater than the width of the vertical segment. Wherein, when the backlight holder is disposed on the frame body, the limiting portion of the first fastening component is hooked to the first fastening groove of the frame body, and the limiting segment and the vertical segment of the second fastening component are respectively The locking portion and the extending portion of the second engaging groove of the frame are fitted to restrict the detachment of the backlight holder from the frame.

The frame structure of the backlight module disclosed in the present invention stabilizes the backlight holder by hooking and/or fitting between the two fastening members of the backlight holder and the two fastening slots of the frame body The combination is attached to the frame to prevent the backlight holder from being detached from the frame. Moreover, by the hooking and/or the fitting action between the two fastening members and the two fastening slots, the assembly process of the frame structure of the backlight module can be simplified, and the assembly time of the frame structure of the backlight module can be saved. Therefore, the manufacturing and production cost of the frame structure of the backlight module can be further reduced.

The above description of the present invention and the following description of the embodiments of the present invention are intended to illustrate and explain the principles of the invention.

As shown in FIG. 1 to FIG. 3, the frame structure of the backlight module disclosed in the first embodiment of the present invention includes a frame body 10 and a backlight holder 20. The frame body 10 has a first fastening slot 110, a guiding slope 120, a second fastening slot 130, and a corresponding first outer side 140 and a second outer side 150. The first fastening slot 110 is disposed on the first fastening slot 110. The edge of the first outer side 140 is matched with the second drawing. The guiding surface 120 is obliquely disposed on the first outer side 140, and the guiding surface 120 is connected to the first fastening groove 110. The outer side edge 140 is disposed on the first outer side edge 140 (not shown) in a manner not connected to the first fastening groove 110. In the embodiment, the one end of the guide slope 120 is first and first. The fastening grooves 110 are connected, and the other end is inclined from the first outer side 140 toward the inside of the casing 10. The second fastening groove 130 is disposed on the second outer side 150. The second fastening groove 130 has a locking portion 131 and an extending portion 132. One end of the locking portion 131 and the first portion One of the engaging grooves 110 corresponds to the position, and the other end is connected to the extending portion 132. The width of the locking portion 131 is greater than the width of the extending portion 132, and the width of the locking portion 131 is from the other end of the locking portion 131 opposite the extending portion 132, and is tapered to one end connected to the extending portion 132, so that the locking portion 131 presents an inverted trapezoidal structure.

Please refer to FIG. 1 , FIG. 4 , and FIG. 5 . The two ends of the backlight holder 20 have a first fastening component 210 and a second fastening component 220 respectively. The first fastening member 210 has a vertical section 211 and a limiting section 212, the first fastening member 210 and the second fastening slot 210 respectively. The two latching members have another vertical section 221 and another limiting section 222. One end of the vertical section 211 of the first latching member 210 is connected to the backlight holder 20, and the other end is connected to the limiting section 212. And the vertical section 211 of the first fastening component 210 and the limiting section 212 have an angle θ less than or equal to 90 degrees.

One end of the vertical section 221 of the second fastening component 220 is connected to the backlight holder 20, and the other end is connected to the limiting section 222. The vertical section 221 and the limiting section 222 of the second fastening component 220 respectively match The extending portion 132 of the second fastening groove 130 and the locking portion 131. Therefore, the width of the limiting segment 222 of the second fastening component 220 is greater than the width of the vertical segment 221, and the width of the limiting segment 222 of the second fastening component 220 is tapered to the limiting segment 222 and the vertical segment 221 The connected position, that is, the width of the limiting portion 222 of the second fastening member 220 is from the other end of the limiting portion 222 relative to the backlight holder 20, and is tapered to the limiting portion 222 and connected to the vertical portion 221 The position is such that the limit segment 222 has an inverted trapezoidal structure.

Please refer to FIG. 1 to FIG. 6 simultaneously. When the backlight holder 20 is mounted on the housing 10, the second fastening member 220 of the backlight holder 20 is first engaged with the frame. The second fastening groove 130 of the second fastening member 120 is respectively engaged with the locking portion 131 and the extending portion 132 of the second fastening groove 130 by the limiting portion 222 and the vertical portion 221 of the second fastening member 220. The second fastening member 220 is firmly engaged by the limiting portion 222 of the second fastening member 220 against the locking portion 131 of the second fastening groove 130 (as shown in FIG. 6). The second fastening groove 130 is not detached from the second fastening groove 130.

Then, the first fastening component 210 of the backlight holder 20 is pushed against the frame body 10, so that the limiting section 212 of the first fastening component 210 contacts the guiding slope 120 and is guided by the guiding inclined surface 120. Sliding and hooking into the first fastening groove 110 (as shown in "Fig. 6"). Therefore, the limiting portion 212 of the first fastening member 210 is hooked into the first fastening groove 110, and the limiting portion 222 of the second fastening member 220 is engaged and abuts against the second fastening groove 130. The locking portion 131 allows the backlight holder 20 to be stably placed on the casing 10 without being detached from the casing 10 by the collision of an external force.

As shown in FIG. 7 to FIG. 9 , in order to further increase the holding strength between the second fastening component 220 and the second fastening groove 130 , an edge is disposed on the edge of the second fastening groove 130 . The abutting portion 133 is disposed at a position corresponding to the first engaging groove 110 , and the abutting portion 133 is connected to the other end of the locking portion 131 opposite to the extending portion 132 and between the locking portion 131 An angle less than or equal to 90 degrees is formed. At the same time, a bending section 223 is disposed on the second fastening component 220, so that one end of the limiting section 222 is connected to the vertical section 221, the other end is connected to the bending section 223, and the bending section 223 and the limiting section are connected. There is an angle between 222 that is less than or equal to 90 degrees.

Therefore, when the backlight holder 20 is disposed on the frame body 10, the second fastening member 220 is hooked to the abutting portion 133 of the second fastening groove 130 by the bending portion 223, and is defined by the limiting portion 222 and the vertical portion. The straight segments 221 are respectively fitted into the locking portions 131 and the extending portions 132 of the second fastening groove 130. The second fastening member 220 is fixed to the second fastening by the abutting action between the limiting portion 222 and the locking portion 131 and the hooking action between the bending portion 223 and the abutting portion 133. The groove 130 further increases the bonding strength between the second fastening member 220 and the second fastening groove 130.

In addition, in the frame structure of the backlight module disclosed in the present invention, in addition to the arrangement of the first fastening groove 110 and the second fastening groove 130 of different structural forms in the frame 10 as in the first embodiment, Two first fastening grooves 110 or two second fastening grooves 130 may be disposed on the frame 10. As shown in FIG. 10, in an embodiment of the present invention, a first fastening groove 110 is respectively disposed on an edge of the first outer side 140 and the second outer side 150 of the frame 10, and Two first fastening members 210 are disposed on the backlight holder 20, and the two first fastening members 210 respectively correspond to the two first fastening slots 110 for the limiting segments 212 of the two first fastening members 210. The backlight holder 20 is securely coupled to the frame 10 and the backlight holder 20 is restrained from being detached from the frame 10 by hooking into the first fastening slots 110.

At the same time, in order to increase the accuracy and convenience of the first fastening component 210 when hooked to the first fastening groove 110, additional settings are respectively provided on the first outer side 140 and the second outer side 150 of the frame 10. A guide bevel 120 is provided, or a beveled surface 120 is selectively disposed on the first outer side 140 or the second outer side 150. In the present embodiment, the guide bevel 120 is disposed on the first outer side 140 and the second outer side 150 as an example, but is not limited thereto. The guiding surface 120 is disposed on the first outer side 140 and the second outer side 150 obliquely from the first engaging groove 110 toward the inside of the frame 10, so that the limiting section 212 of the first fastening component 210 is During the process of hooking the first fastening groove 110, it is guided by the guiding inclined surface 120 to slide to the first fastening groove 110 and hooked therein.

Similarly, as shown in FIG. 11 , in another embodiment of the present invention, a second fastening groove 130 is disposed on the first outer side 140 and the second outer side 150 of the frame 10 . And the second fastening component 220 is disposed on the backlight holder 20, and the second fastening component 220 corresponds to the second fastening slot 130 of the frame 10. When the backlight holder 20 is mounted on the frame 10, the limiting portion 222 and the vertical portion 221 of the second fastening member 220 are respectively engaged with the locking portion 131 and the extending portion of the second fastening groove 130. The backlight holder 20 is firmly coupled to the frame 10 by the limiting portion 222 of the second locking member 220 and the locking portion 131 of the second fastening groove 130.

In addition, as shown in FIG. 12, a bending portion 223 is selectively disposed on the second fastening member 220, and an abutting portion 133 is selectively disposed on the second fastening groove 130. When the second fastening member 220 is engaged with the locking portion 131 and the extending portion 132 of the second fastening groove 130 by the limiting portion 222 and the vertical portion 221, the second fastening member 220 is simultaneously hooked by the bending portion 223. The first outer side 140 and the second outer side 150 (not shown) of the frame 10 are fastened or fastened to the abutting portion 133 of the second fastening groove 130, thereby lifting the second fastening component. The bonding strength between 220 and the second fastening groove 130.

The frame structure of the backlight module disclosed in the present invention comprises a frame body and a backlight holder. The two opposite sides of the frame body are respectively provided with two fastening grooves, and are disposed on the backlight holder. Two snap fasteners corresponding to the two snap grooves. The backlight holder is fixed on the frame by the hooking and/or the fitting of the two fastening members and the two fastening slots, thereby effectively increasing the gap between the backlight holder and the frame. The strength is combined to avoid the situation in which the backlight holder is detached from the frame. Moreover, the hooking and/or fitting manner between the two fastening members and the two fastening slots can simplify the assembly process of the frame structure of the backlight module, and at the same time save the assembly time of the frame structure of the backlight module, and further Reduce the manufacturing and production costs of the frame structure of the backlight module.

Although the embodiments of the present invention are disclosed above, it is not intended to limit the present invention, and those skilled in the art, regardless of the spirit and scope of the present invention, the shapes, structures, and features described in the scope of the present application. And the spirit of the invention is subject to change. Therefore, the scope of patent protection of the present invention is subject to the scope of the patent application attached to the specification.

10. . . framework

110. . . First snap groove

120. . . Bevel

130. . . Second fastening slot

131. . . Clamping part

132. . . Extension

133‧‧‧Affiliation

140‧‧‧First outer side

150‧‧‧second outer side

20‧‧‧Backlight holder

210‧‧‧First card fastener

211‧‧‧ vertical section

212‧‧‧Limited paragraph

220‧‧‧Second fasteners

221‧‧‧ vertical section

222‧‧‧Limited paragraph

223‧‧‧Bend section

θ‧‧‧An angle between the vertical section of the first fastener and the limit section

1 is a perspective exploded view of a first embodiment of the present invention;

2 is a schematic structural view of a first fastening groove according to a first embodiment of the present invention;

3 is a schematic structural view of a second fastening groove according to a first embodiment of the present invention;

4 is a schematic structural view of a first fastening component according to a first embodiment of the present invention;

Figure 5 is a schematic structural view of a second fastening member according to a first embodiment of the present invention;

Figure 6 is a schematic cross-sectional view showing a combination of the first embodiment of the present invention;

Figure 7 is a schematic view showing the structure of the second fastening groove of the first embodiment of the present invention;

Figure 8 is a structural view of the second fastening member of the first embodiment of the present invention having a bent section;

Figure 9 is a partial assembled view of the first embodiment of the present invention;

Figure 10 is an exploded perspective view of an embodiment of the present invention;

11 and 12 are exploded views of another embodiment of the present invention.

10‧‧‧ frame

120‧‧‧Bevel

140‧‧‧First outer side

150‧‧‧second outer side

20‧‧‧Backlight holder

210‧‧‧First card fastener

211‧‧‧ vertical section

212‧‧‧Limited paragraph

220‧‧‧Second fasteners

221‧‧‧ vertical section

222‧‧‧Limited paragraph

Claims (11)

A frame structure of a backlight module includes: a frame body having two fastening slots, wherein the fastening slots are respectively located on two outer side edges of the frame body, wherein each of the fastening slots has a card a backlight and an extension; and a backlight holder having two latching members, each of the latching members having a vertical segment and a limiting segment, the vertical segment being connected to the backlight holder at one end, The other end is connected to the limiting segment, and the fastening members respectively correspond to the fastening slots, and the width of the limiting segment is tapered to a position where the limiting segment is connected to the vertical segment, and the The width of the locking portion is also tapered to a position where the locking portion is connected to the extending portion. When the backlight holder is disposed on the frame, the limiting segments are respectively fastened to the fastening portions. The locking portion and the extending portion of the same fastening slot are respectively engaged with the limiting portion and the vertical portion of the same fastening member to prevent the backlight holder from being detached from the frame. The frame structure of the backlight module of claim 1, wherein the same segment of the same fastener has an angle with the vertical segment, the angle is less than or equal to 90 degrees, and the fasteners are The limiting segments are respectively hooked to the two fastening slots of the frame. The frame structure of the backlight module of claim 2, wherein the fastening grooves are respectively disposed on edges of the outer sides. The frame structure of the backlight module of claim 2, wherein the frame body further has at least one guiding slope, the guiding slope is connected to one of the fastening slots, and when the backlight holder is disposed on the frame And guiding the fastening component corresponding to the fastening groove to the fastening groove. The frame structure of the backlight module of claim 4, wherein the guiding slope is obliquely disposed on the frame from the fastening groove toward the frame. The frame structure of the backlight module of claim 1, wherein each of the latching members further has a bent section, the one end of the limiting section is connected to the vertical section, and the other end is extended to form the bending section, and The angle between the bending segment and the limiting segment is less than or equal to 90 degrees. When the backlight holder is disposed on the frame, the bending segment is hooked on the frame. The frame structure of the backlight module of claim 1, wherein the width of the limiting segment and the locking portion are respectively greater than the width of the vertical segment and the extending portion, and the backlight holder is disposed at the In the frame, the limiting portion and the vertical segment of the same fastening component are respectively engaged with the locking portion and the extending portion of the corresponding fastening groove. A frame structure of a backlight module includes: a frame body having a first fastening groove and a second fastening groove, wherein the first fastening groove and the second fastening groove respectively correspond to the frame body The second fastening groove is disposed on the outer edge of the outer side of the second fastening groove, and the second fastening groove has a locking portion and a second fastening groove. An extension portion, wherein the width of the locking portion is greater than a width of the extension portion; and a backlight holder having a first fastening component and a second fastening component, the first fastening component and the second card Each of the fasteners has a vertical section and a limiting section. One end of the vertical section is connected to the backlight holder, and the other end is connected to the limiting section. The width of the limiting section of the second fastening component is tapered. And the position of the locking portion connected to the vertical segment, and the width of the locking portion of the second fastening groove is also tapered to a position where the locking portion is connected to the extending portion, the first The vertical segment of the snap member and the Between the limiting segments, the angle is less than or equal to 90 degrees, and the width of the limiting segment of the second fastening component is greater than the width of the vertical segment; wherein the backlight holder is disposed in the frame The limiting portion of the first fastening component is hooked to the first fastening slot, and the limiting section and the vertical section of the second fastening component are respectively engaged in the second fastening slot The locking portion and the extending portion restrict the detachment of the backlight holder from the frame. The frame structure of the backlight module of claim 8, wherein the frame body further has a guiding slope, the guiding slope is located on the same outer side of the first fastening slot, and the guiding slope and the first The fastening slot is connected to the first fastening slot when the backlight holder is disposed on the frame. The frame structure of the backlight module of claim 9, wherein the guiding slope is obliquely disposed on the frame from the first fastening groove toward the frame. The frame structure of the backlight module of claim 8, wherein the second fastening component further has a bending section, wherein one end of the limiting section of the second fastening component is connected to the bending section, and the other end is connected to the a vertical segment having an angle of less than or equal to 90 degrees between the bending segment and the limiting segment. When the backlight holder is disposed on the frame, the bending segment is hooked on the frame .