CN201051253Y - Antenna module for electromagnetic digital board - Google Patents
Antenna module for electromagnetic digital board Download PDFInfo
- Publication number
- CN201051253Y CN201051253Y CNU2007201436348U CN200720143634U CN201051253Y CN 201051253 Y CN201051253 Y CN 201051253Y CN U2007201436348 U CNU2007201436348 U CN U2007201436348U CN 200720143634 U CN200720143634 U CN 200720143634U CN 201051253 Y CN201051253 Y CN 201051253Y
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- Prior art keywords
- antenna
- light
- wiring
- electromagnetic
- digital board
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 239000011159 matrix material Substances 0.000 claims abstract 3
- 239000000758 substrate Substances 0.000 claims description 31
- 239000002184 metal Substances 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 238000003491 array Methods 0.000 claims 2
- 230000000694 effects Effects 0.000 description 10
- 239000004973 liquid crystal related substance Substances 0.000 description 10
- 230000009931 harmful effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 239000011889 copper foil Substances 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910001021 Ferroalloy Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910000697 metglas Inorganic materials 0.000 description 1
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Abstract
An antenna module for electromagnetic digit board is prepared as setting a wiring for LED on at least one surface of base board, arranging multiple guide connection portions being arranged in matrix and being suitable for placing and electrically connecting LED and multiple wiring being connected to corresponding guide connection portion and being arranged regularly, staggering said antenna circuit at position of guide connection portion for setting LED on it directly as light source of direct type backlight module.
Description
Technical field
The utility model relates to the Anneta module that a kind of electromagnetic type digiboard is used, and particularly relates to a kind of interior Anneta module of display that is applied to integrate electromagnetic type digiboard function.
Background technology
At present common digiboard (digitizing tablet) function is integrated in the display, wherein, the electromagnetic type digiboard has reliability height, linear good and resolution advantages of higher, so often adopt the electromagnetic type digiboard to be integrated in the display.
As Fig. 1, a kind of in the past LCD of integrating electromagnetic type digiboard function comprises the Anneta module 13 that backlight module 12 and that a liquid crystal panel 11, is positioned at liquid crystal panel 11 rears is positioned at backlight module 12 rears, Anneta module 13 is printed circuit board (PCB)s (PCB) and its surface is laid with X-axis antenna and Y-axis antenna, in order to the magnetic field of sensing one time writer 14, the coordinate that calculates time writer 14 for the control circuit of digiboard sends computing machine to.
Backlight module roughly can be divided into side direction type backlight with two kinds of direct-type backlights, it is backlight to belong to side direction type as the backlight module 12 of Fig. 1, its two opposite sides are provided with cold cathode fluorescent lamp (Cold CathodeFluorescent Lamp, CCFL) insert and put a light guide plate 122 in 121 and two cold cathode fluorescent lamp 121, and downward back only is provided with the cold cathode fluorescent lamp of many spacing parallel arrangings below light guide plate, so that brightness and the high brightness that is evenly distributed to be provided.
Along with the technology growth of light emitting diode, there is today backlight module to replace cold cathode fluorescent lamp gradually and is used as light source with light emitting diode.Yet, if the light source of direct type backlight module is used light emitting diode instead, because the magnetic field of general electromagnetic type digiboard is destroyed to cause linear bad or intercept by metal material easily and caused and can't move, use light emitting diode to integrate with the electromagnetic type digiboard as the display of the direct type backlight module of light source is difficult.
Specifically, as Fig. 2, backlight module 12 ' also is arranged between liquid crystal panel 11 and the Anneta module 13, and backlight module 12 ' has a plurality of circuit boards 121 ' and that are the light emitting diode 1211 ' of arranged of a layout and is positioned at light guide plate 122 ' on the circuit board 121 '.Metal routing on the circuit board 121 ' can the Anneta module 13 of side causes harmful effect to being positioned at thereafter.Moreover, at present for to allow light emitting diode 1211 ' can obtain preferable radiating effect, often the Copper Foil area with circuit board 121 ' strengthens, make Anneta module 13 easily can't receive field signal or field signal is imperfect because of the metal on the circuit board 121 ', cause linear bad, need to revise through complex calculation, very the person is difficult to cause to such an extent that the electromagnetic type digiboard can't regular event through the correction of computing do.Be located at the below of circuit board 121 ' because of Anneta module 13, the radiating effect that also makes circuit board 121 ' is affected and is not good.
The utility model content
A purpose of the present utility model is that the Anneta module that provides a kind of dysgenic electromagnetic type digiboard that can effectively reduce light emitting diode to use is provided.
Another purpose of the present utility model is to be to provide a kind of Anneta module that reduces cost and use with the electromagnetic type digiboard that increases radiating effect.
So the Anneta module that the utility model electromagnetic type digiboard is used comprises a substrate and an antenna loop.
Substrate of the present utility model has one first and one second, this antenna loop have be laid in respectively this first with this second X-axis antenna and Y-axis antenna, the Anneta module that this electromagnetic type digiboard is used also comprises an effective wiring of light-emitting diodes, the effective wiring of this light-emitting diodes be laid in this first with this at least one of second, and have and a plurality ofly be arranged and be fit to for placing and the junctions that are electrically connected light emitting diode, and many be electrically connected on the cablings that corresponding junction and regularization are arranged, again the position of this junction this antenna loop that staggers.
The beneficial effects of the utility model are: provide the effective wiring of light-emitting diodes of putting light emitting diode because the Anneta module that the utility model electromagnetic type digiboard is used is laid with, the effective cabling formation rule arrangement of antenna loop and light-emitting diodes so the putting position of light emitting diode can stagger, and then make the effective wiring of light-emitting diodes can produce unanimity and reduction to the influence of electromagnetic signal, and can reach effective reduction light emitting diode harmful effect, reduce cost and increase the effect of radiating effect.
Description of drawings
Fig. 1 is a kind of in the past synoptic diagram of integrating the LCD of electromagnetic type digiboard function, and wherein, the backlight liquid crystal display module is the side direction type backlight module;
Fig. 2 is the another kind of in the past synoptic diagram of integrating the LCD of electromagnetic type digiboard function, and wherein, the backlight liquid crystal display module is that direct type backlight module and light source are light emitting diode;
Fig. 3 is a vertical view of the Anneta module preferred embodiment used of the utility model electromagnetic type digiboard;
Fig. 4 is a partial schematic sectional view of present embodiment;
Fig. 5 is an example schematic of X-axis and the effective layout of light-emitting diodes in the present embodiment antenna loop;
Fig. 6 is an example schematic of Y-axis antenna in the antenna loop in the present embodiment;
Fig. 7 is that present embodiment is integrated in the synoptic diagram in the display; And
Fig. 8 is a cross-sectional schematic of the display of Fig. 7.
Embodiment
Below in conjunction with drawings and Examples the utility model is elaborated.
Problem when being light emitting diode for the light source that solves direct type backlight module, the utility model directly on Anneta module planning allow the light emitting diode in the backlight module can be directly and the Anneta module integration for the effective wiring of the effective light-emitting diodes of light-emitting diodes is set, plan the harmful effect of light-emitting diodes effective wiring reduction light emitting diode in advance with utilization.Therefore, consult Fig. 3 and Fig. 4, Anneta module 2 preferred embodiments that the utility model electromagnetic type digiboard is used comprise a substrate 21, an antenna loop 22 and the effective wiring 23 of a light-emitting diodes.
With reference to Fig. 4, Fig. 5 and Fig. 6, substrate 21 has one first 211 and 1 second 212.Antenna loop 22 has many X-axis antennas 221 and many Y-axis antennas 222 that are divided into first 211 and second 212.In the present embodiment, substrate 21 is a two-sided printed circuit board (PCB) for the insulation material, and the material of X-axis antenna 221 and Y-axis antenna 222 is Copper Foils, these X-axis antennas 221 extend longitudinally in first 221 of substrate 21 in parallel to each other, horizontal expansion is in second 222 of substrate 21 in parallel to each other for these Y-axis antennas 222, and X-axis antenna 221 is vertical mutually with the bearing of trend of Y-axis antenna 222.In the present embodiment because the substrate 21 in the Anneta module 2 and antenna loop 22 widely known to those skilled in the art and the emphasis of non-the utility model improvement, so do not give unnecessary details at this.
Be different from Anneta module in the past, consult Fig. 3 and Fig. 4, present embodiment also at least first 211 and second 212 of substrate 21 one of them the effective wiring 23 of light-emitting diodes is set.The effective wiring 23 of light-emitting diodes has a plurality of arranged and suitable for the junctions 231 of placing and be electrically connected on light emitting diode 24 usefulness that are, and reaches many cablings 232 that are electrically connected on corresponding junction 231 and regularization arrangement.Junction 231 can be arranged on first 211 or second 212 of substrate 21 with cabling 232, also can allow junction 231 and cabling 232 be divided on the different surfaces of substrate 21 certainly.For convenience of description, all being positioned at first 211 of substrate 21 at this with junction 231 and cabling 232 is that example illustrates.
As Fig. 3, X-axis antenna 221 in the antenna loop 22 can define a plurality of rectangle blocks 213 that are arranged in first 211 of substrate 21 with Y-axis antenna 222, and be used as the border of each rectangle block 213 with antenna loop 22, junction 231 is arranged in the rectangle block 213, and the electromagnetism that causes with 24 pairs of antenna loops 22 of light emitting diode of avoiding junction 231 and can being mounted thereon intercepts.Cabling 232 is parallel with X-axis antenna 221, and there are two cablings 232 separately in 221 on two adjacent X-axis antennas, with the required power supply of transmission light emitting diode 24, causes the influence of the electromagnetic signal of 232 pairs of antenna loops 22 of cabling can be consistent and reduce.
Certainly, the effective wiring 23 of light-emitting diodes also can be arranged on second 212 of substrate 21, this moment, and cabling 232 and Y-axis sky line parallel.
Anneta module 2 also comprises one in order to be electrically connected antenna loop 22 and the effective wiring 23 of the light-emitting diodes linkage unit 25 to the external world.Present embodiment linkage unit 25 has an antenna port 251 and a light-emitting diodes pipe port 252.Antenna port 251 is electrically connected each bar X-axis antenna 221 and each bar Y-axis antenna 222, and antenna port 251 is fit to be electrically connected to the control circuit (figure does not show) in the electromagnetic type digiboard, transfers to control circuit with the electromagnetic signal that antenna loop 22 is sensed through antenna port 251 and carries out correlation computations.Light-emitting diodes pipe port 252 is electrically connected these cablings 232, light-emitting diodes pipe port 252 also is fit to be electrically connected to the control circuit for light source (figure does not show) of display, allows display control signal can be transferred to the effective wiring 23 of light-emitting diodes through light-emitting diodes pipe port 252.
So, this Anneta module 2 is fit to be assembled in electromagnetic type digiboard or the display.If when desiring to be assembled in the display, as Fig. 3, this Anneta module 2 also comprises a plurality of light emitting diodes 24 with on the junction 231 that is installed on the effective wiring 23 of light-emitting diodes, and light emitting diode 24 can the surface adhering mode (Surface Mounting Technology SMT) is installed on the corresponding junction 231.Certainly, if when desiring to be assembled in the electromagnetic type digiboard, light emitting diode need not be installed again just can directly assemble.In the following description, being assembled in the display with Anneta module 2 is that example illustrates.
At first explanation is, when considering that Anneta module 2 is assembled in the display, second 212 below in substrate 21 may exist metal to influence magnetic field, so the Anneta module 2 of present embodiment also comprises an ELECTROMAGNETIC OBSCURANT film 26, be covered on second 212 of substrate 2 (face that refers to not to be provided with the junction 231 of the effective wiring 23 of light-emitting diodes), destroyed by other metals of second 212 below of substrate 2 and isolate and disturb to prevent magnetic field.The ELECTROMAGNETIC OBSCURANT film 26 of present embodiment is a magnetic conductive metal film, and its material can be ferroalloy, and METGLAS 2605 SA1 IronBased Alloy for example, ELECTROMAGNETIC OBSCURANT film 26 can utilize insulating gel to fit on second 212 of substrate 21.So, ELECTROMAGNETIC OBSCURANT film 26 remove can avoid magnetic field destroyed with disturb, and can increase area of dissipation, allow the better heat-radiation effect of light emitting diode 24.
With reference to Fig. 7 and Fig. 8, this display 3 has that light guide plate 32, that a liquid crystal panel 31, is positioned at the backlight module of liquid crystal panel 31 belows is positioned at the Anneta module 2 of light guide plate 32 belows and in order to a upper frame body 33 and a lower frame body 34 of immobile liquid crystal panel 31, light guide plate 32, Anneta module 2.Because Anneta module 2 is except that being used for the receiving electromagnetic signals, can also be as the light source of backlight module, and when assembling makes 21 first 211 of substrates that Anneta module 2 is provided with light emitting diode 24 in the face of light guide plate 32, makes light emitting diode 24 can be used as the light source of direct type backlight module.
So, when display 3 work, liquid crystal panel 31 can utilize the light emitting diode 24 of Anneta module 2 to provide light source to produce image, when user's desire is used electromagnetic type digiboard function, can utilize a time writer 35 contact liquid crystal panels 31, the electromagnetic signal that makes antenna loop 22 in the Anneta module 2 can receive time writer 35 calculates the coordinate of time writer 35 with the control circuit that transfers to the electromagnetic type digiboard through antenna port 251, and then sends computing machine to.
At this, because planning in advance, the effective wiring 23 of light-emitting diodes makes junction 231 antenna loop that staggers, and cabling 232 regularization are arranged, its influence to magnetic field can be lowered and unanimity, control circuit can be revised easily, to simplify computing, electromagnetic type digiboard function can be integrated in easily in the display of direct type backlight module.Simultaneously, present embodiment will be in the past in the backlight module circuit board and the Anneta module of light emitting diode be integrated on the same substrate, just do not allow assembling simplify, and cost can reduce, assemble desired thickness and also can reduce.Moreover, the circuit board of light emitting diode below made its radiating effect not good for Anneta module in the backlight module in the past, present embodiment directly is located at light emitting diode 24 on the substrate 21 and the ELECTROMAGNETIC OBSCURANT film 26 on second 212 of substrate 21 increases area of dissipation, makes that the radiating effect of light emitting diode 24 can significantly be improved.When the display desire of direct type backlight module increases the digiboard function, need not change design, only need and just can reach integration electromagnetic type digiboard function, and then to reach the convenience of function expanding such as the Anneta module 2 of the light source alternative costs embodiment of the circuit board of light emitting diode.
In sum, 2 regularization of the utility model Anneta module are provided with the effective wiring 23 of light-emitting diodes on substrate 21, the influence in 24 pairs of magnetic fields of light emitting diode can be lowered and unification, to reduce the harmful effect of light emitting diode, while upward reaches another surface (referring to second 212) that ELECTROMAGNETIC OBSCURANT film 26 is covered in substrate 21 because of the surface (referring to first 211) that light emitting diode can directly be provided with substrate 21, to reach the effect that reduces cost and increase radiating effect.
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201436348U CN201051253Y (en) | 2007-04-20 | 2007-04-20 | Antenna module for electromagnetic digital board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201436348U CN201051253Y (en) | 2007-04-20 | 2007-04-20 | Antenna module for electromagnetic digital board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201051253Y true CN201051253Y (en) | 2008-04-23 |
Family
ID=39337748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201436348U Expired - Lifetime CN201051253Y (en) | 2007-04-20 | 2007-04-20 | Antenna module for electromagnetic digital board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201051253Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110083280A (en) * | 2019-04-26 | 2019-08-02 | 业成科技（成都）有限公司 | Has the touch panel of function of electromagnetic induction |
-
2007
- 2007-04-20 CN CNU2007201436348U patent/CN201051253Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110083280A (en) * | 2019-04-26 | 2019-08-02 | 业成科技（成都）有限公司 | Has the touch panel of function of electromagnetic induction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080423 |
|
| CX01 | Expiry of patent term |