CN201754272U - Electromagnetic touch screen - Google Patents
Electromagnetic touch screen Download PDFInfo
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- CN201754272U CN201754272U CN2010202437195U CN201020243719U CN201754272U CN 201754272 U CN201754272 U CN 201754272U CN 2010202437195 U CN2010202437195 U CN 2010202437195U CN 201020243719 U CN201020243719 U CN 201020243719U CN 201754272 U CN201754272 U CN 201754272U
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- conducting layer
- electromagnetic induction
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Abstract
The utility model provides an electromagnetic touch screen, which comprises an electromagnetic stylus, an electromagnetic induction control board and a transparent electromagnetic induction antenna board. The transparent electromagnetic induction antenna board positioned on the upper side of a display screen is electrically connected with the electromagnetic induction control board, and comprises an upper transparent conductive layer, a transparent insulating layer and a lower transparent conductive layer overlapped in sequence, wherein both the upper transparent conductive layer and the lower transparent conductive layer are single conductive layers. The electromagnetic induction antenna board of the electromagnetic touch screen is disposed on the upper side of the display screen, which is different from the prior art. The electromagnetic touch screen only adopts the structural means of the two conductive layers, namely the upper and the lower transparent conductive layers, accordingly enhances transmittance of the electromagnetic induction antenna board during signal emitting, and can reduce power consumption of the electromagnetic touch screen, further an induction coil on the electromagnetic induction antenna board has larger effective area, and thereby the electromagnetic touch screen has fine sensibility.
Description
Technical field
The utility model belongs to the computer entry device field, relates in particular to a kind of electromagnetical type touch screen.
Background technology
Electromagnetical type touch screen because its bearing accuracy height, can be detected many about the information of the position of felt pen, and after installing, does not influence the brightness of display screen, so it is by being applied on portable computer and the handwriting pad more and more widely.
Existing electromagnetical type touch screen generally is made up of electromagnetic type induction control panel, electromagnetic type induction antenna and time writer, electromagnetic type induction control panel and electromagnetic type induction antenna are produced on the opaque pcb board, because above-mentioned three has opacity, therefore when design, need this electromagnetical type touch screen is made in display screen below.The negative consequence of bringing thus is, when time writer places this display screen top, the electromagnetic induction antenna plate need be sent very strong signal to pass display screen, can drive whole electromagnetical type touch screen, so just increase the power consumption of whole electromagnetical type touch screen greatly, also influenced the life-span of this electromagnetical type touch screen.
In order to solve the too big problem of above-mentioned electromagnetical type touch screen power consumption, at present, also there is corresponding manufacturer to make the induction antenna of electromagnetical type touch screen transparent, this induction antenna is positioned at the upside of display screen, the toroid winding of electromagnetical type touch screen is made a circle, make two winding displacement circles of X and two vertical direction of Y, replace the coil of opaque electromagnetic type induction antenna matrix form.But, though such transparent electromagnetic formula touch-screen has reduced the power consumption of whole touch screen device, because the area of coil is less, the coil number of total coils is less, cause the sensitivity of electromagnetic induction antenna plate to reduce greatly, its effect of writing and fluency are not being met when carrying out handwriting input.
In order to solve the sensitivity problem of above-mentioned transparent electromagnetic formula touch-screen, the transparent electromagnetic induction antenna plate that has occurred some multilayers on the market again, it is with the enlarged areas of the solenoid of X and Y direction, and adjacent in twos coil is positioned at different layers on the thickness direction of this electromagnetical type touch screen, adjacent windings just can overlap a part like this, can enlarge the area of single coil thus, improve its sensitivity.Though such electromagnetical type touch screen has solved the lower problem of sensitivity of transparent electromagnetic touch-screen, but because its total electrode number of plies is more, reduced the transmitance of electromagnetic type induction antenna plate when emissive power, therefore can make the power consumption of this electromagnetical type touch screen increase to a certain extent, its multilayer design has simultaneously also increased the cost of whole touch screen device.
The utility model content
The utility model provides the electromagnetical type touch screen that a kind of sensitivity is higher and power consumption is lower in order to solve the lower or power consumption technical problems of high of existing electromagnetical type touch screen sensitivity.
In order to solve above technical matters, the technical solution of the utility model is: a kind of electromagnetical type touch screen, the transparent electromagnetic induction antenna plate that is electrically connected with described electromagnetic induction control panel that comprises time writer, electromagnetic induction control panel and be positioned at the display screen upside, wherein, described electromagnetic induction antenna plate comprises last transparency conducting layer, transparent insulating layer and the following transparency conducting layer that stacks gradually, and described upward transparency conducting layer and following transparency conducting layer are the individual layer conductive layer.
Further, described upward transparency conducting layer or following transparency conducting layer comprise " U " type conductive coil of a plurality of cross arrangements.
Further, adjacent in twos described conductive coil has the zone of coincidence, is provided with the perforation of passing for described conductive coil at described transparent insulating layer with the described corresponding zone, zone that overlaps.
Further, described upward transparency conducting layer or following transparency conducting layer comprise at least one spiral rectangular conductive coil.
Further, be provided with perforation in the described transparent insulating layer zone corresponding with described rectangular conductive coil ground connection link.
Further, at the described edge of transparency conducting layer down low resistance conductive layer is set.
Further, described low resistance conductive layer is the coat of metal or silver paste printing ink layer.
Further, on described transparency conducting layer dorsad a side of described transparent insulating layer also be provided with the transparent insulation dielectric layer, described transparency conducting layer down dorsad a side of described transparent insulating layer also be provided with transparent insulation dielectric layer down.
The electromagnetical type touch screen that the utility model provides is owing to be arranged at described electromagnetic induction antenna plate the upside of display screen, and be different from prior art, the utility model only adopts the version of the two conductive layers of upper and lower transparency conducting layer, thereby can strengthen the transmitance of described electromagnetic induction antenna plate when transmitting, thereby can reduce the power consumption of this electromagnetical type touch screen, and, the useful area of the inductive coil on its electromagnetic induction antenna plate is bigger, so this electromagnetical type touch screen has good sensitivity.
Description of drawings
The structural representation of a kind of embodiment of electromagnetical type touch screen that Fig. 1 provides for the utility model;
The conductive coil synoptic diagram of a kind of embodiment of electromagnetical type touch screen that Fig. 2 provides for the utility model;
The conductive coil synoptic diagram of the another kind of embodiment of the electromagnetical type touch screen that Fig. 3 provides for the utility model;
The circuit connection diagram of the electromagnetical type touch screen that Fig. 4 provides for the utility model.
Embodiment
Clearer for technical matters, technical scheme and beneficial effect that the utility model is solved, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
The utility model provides a kind of electromagnetical type touch screen, as shown in Figure 1, the transparent electromagnetic induction antenna plate that is electrically connected with described electromagnetic induction control panel that it comprises time writer (not shown), electromagnetic induction control panel (not shown) and is positioned at display screen (not shown) upside, wherein, described electromagnetic induction antenna plate comprises last transparency conducting layer 2, transparent insulating layer 3 and the following transparency conducting layer 5 that stacks gradually, and described upward transparency conducting layer 2 and following transparency conducting layer 5 are the individual layer conductive layer.
Wherein, described upward transparency conducting layer 2 and following transparency conducting layer 5 are ITO (Indium Tin Oxides, tin indium oxide), and described transparent insulating layer 3 can be synthetic resin material or SiO
2Coating.
This electromagnetical type touch screen is when work, the electromagnetic induction antenna plate is outwards sent the electromagnetic wave of interchange, the interactive device that comprises in the time writer receives this electromagnetic wave signal, when this time writer is made various input action above display screen, it can change the size of current in the corresponding conductive coil in the electromagnetic induction antenna plate, the electromagnetic induction antenna plate is sent into this current value and is attached thereto the electromagnetic induction control panel that connects, calculate the variation size of this current value by the electromagnetic induction control panel, and, last transparency electrode by just orthogonal directions X and Y direction and down whole size of current data of sensing of transparency electrode send into after the electromagnetic induction control panel handles, can obtain the various input informations of described time writer on display screen.
In concrete implementation process, a side of the described dorsad transparent insulating layer 3 of transparency conducting layer 2 also is provided with transparent insulation dielectric layer 1 on described, also is provided with transparent insulation dielectric layer 6 down in a described side of the described dorsad transparent insulating layer 3 of transparency conducting layer 5 down.Described go up transparent insulation dielectric layer 1 and down transparent insulation dielectric layer 6 insulating material that all can adopt transparent wear-resisting scratch resistance such as glass to hinder make, its objective is in order to protect the last transparency conducting layer 2 and time transparency conducting layer 5 that are held on therebetween to be without prejudice.
The utility model is the structure of individual layer conductive layer to help described upward transparency conducting layer 2 of explanation and following transparency conducting layer 5 for two example two.
First kind of embodiment, as shown in Figure 2, described conductive layer comprises " U " type conductive coil of a plurality of cross arrangements, and for example described transparency conducting layer 2 of going up comprises " U " type conductive coil 20, and described transparency conducting layer down comprises " U " type conductive coil 50.
And, the described coil of adjacent conductive in twos on described transparency conducting layer 2 or arrange on the transparency conducting layer 5 down in can have the zone of coincidence, therefore in order to make when described conductive coil may need to overlap, be provided with the perforation 30 of passing at described transparent insulating layer 3 with the described corresponding zone, zone that overlaps for described conductive coil, one in the feasible conductive coil that may overlap can be connected to external devices by these 30 also final forms with bridging of boring a hole, for example Wai Bu electromagnetic induction control panel.
In addition, as shown in Figure 4, low resistance conductive layer 4 is set at the described edge of transparency conducting layer 5 down.Described low resistance conductive layer 4 can be made by transparent material or opaque material, but this material must have the characteristic of low-resistivity.When described low resistance conductive layer 4 is made by transparent material, described material can be elected ITO as, synthetic transparent polymer conductive material etc., when described low resistance conductive layer 4 is made by opaque material, described material can be the resistivity relatively low coat of metal or silver paste printing ink layer, and in order to make this opaque coat of metal or silver paste printing ink layer not influence the display effect of display screen, the line thickness of this coat of metal or silver paste printing ink layer can be designed as 0.01-0.05mm, under this width range, the user can not be subjected to the influence of this low resistance conductive layer 4 when watching the displaying contents of display screen.
When the edge at display screen was provided with the low resistance conductive layer 4 that described and following transparency conducting layer 5 contacts, it can reduce the overall resistance of this time transparency conducting layer 5, and, can be as the usefulness of the extraction electrode of this time transparency conducting layer 5.
Second kind of embodiment, as shown in Figure 3, described conductive layer comprises at least one spiral rectangular conductive coil 21.When described conductive coil 21 when being a plurality of, as shown in Figure 4, described a plurality of conductive coils 21 by separately arrangements arranged side by side to form transparency conducting layer 2 and time transparency conducting layer 5.
More specifically, as shown in Figure 4, after the conductive coil 21 of described arrangement arranged side by side is arranged on the transparent insulating layer 3, need to pass through with described transparency conducting layer 2 and following transparency conducting layer 5 extraction electrodes gone up, in this process, perforation 30 need be set in described transparent insulating layer 3 zone corresponding with described conductive coil 21 ground connection links, pass this perforation 30 and finally be connected with the earth terminal of this electromagnetical type touch screen in the mode of putting up a bridge for the wherein end of described conductive coil 21, an other end of described conductive coil 21 then extraction electrode is connected to the electromagnetic induction control panel.
In addition, same, at the described edge of transparency conducting layer 5 down low resistance conductive layer 4 is set.The edge of transparency conducting layer 5 under same being arranged in of described low resistance conductive layer 4, it contacts with described transparency conducting layer 5 down, can be used as the usefulness of the part of this time transparency conducting layer 5, in order to reduce the overall resistance of this time transparency conducting layer 5, on the other hand, it can be drawn the electrode of described down transparency conducting layer 5, as the usefulness of the electrode of this time transparency conducting layer 5.Described low resistance conductive layer 4 can be transparency conducting layer, also can be opaque conductive layer, and when described low resistance conductive layer 4 was opaque conductive layer, described low resistance conductive layer 4 was the coat of metal or silver paste printing ink layer.
The electromagnetical type touch screen that the utility model provides is owing to be arranged at described electromagnetic induction antenna plate the upside of display screen, and be different from prior art, the utility model only adopts the version of the two conductive layers of upper and lower transparency conducting layer 5, thereby can strengthen the transmitance of described electromagnetic induction antenna plate when transmitting, thereby can reduce the power consumption of this electromagnetical type touch screen, and, the useful area of the coil on its electromagnetic induction antenna plate is bigger, so this electromagnetical type touch screen has good sensitivity.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (8)
1. electromagnetical type touch screen, the transparent electromagnetic induction antenna plate that is electrically connected with described electromagnetic induction control panel that comprises time writer, electromagnetic induction control panel and be positioned at the display screen upside, it is characterized in that, described electromagnetic induction antenna plate comprises last transparency conducting layer, transparent insulating layer and the following transparency conducting layer that stacks gradually, and described upward transparency conducting layer and following transparency conducting layer are the individual layer conductive layer.
2. electromagnetical type touch screen as claimed in claim 1 is characterized in that, described upward transparency conducting layer or following transparency conducting layer comprise " U " type conductive coil of a plurality of cross arrangements.
3. electromagnetical type touch screen as claimed in claim 2 is characterized in that, adjacent in twos described conductive coil has the zone of coincidence, is provided with the perforation of passing for described conductive coil at described transparent insulating layer with the described corresponding zone, zone that overlaps.
4. electromagnetical type touch screen as claimed in claim 1 is characterized in that, described upward transparency conducting layer or following transparency conducting layer comprise at least one spiral rectangular conductive coil.
5. electromagnetical type touch screen as claimed in claim 4 is characterized in that, the zone corresponding with described rectangular conductive coil ground connection link at described transparent insulating layer is provided with perforation.
6. as the described electromagnetical type touch screen of the arbitrary claim of claim 1-5, it is characterized in that, low resistance conductive layer is set at the described edge of transparency conducting layer down.
7. electromagnetical type touch screen as claimed in claim 6 is characterized in that, described low resistance conductive layer is the coat of metal or silver paste printing ink layer.
8. electromagnetical type touch screen as claimed in claim 6, it is characterized in that, on described transparency conducting layer dorsad a side of described transparent insulating layer also be provided with the transparent insulation dielectric layer, described transparency conducting layer down dorsad a side of described transparent insulating layer also be provided with transparent insulation dielectric layer down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202437195U CN201754272U (en) | 2010-06-25 | 2010-06-25 | Electromagnetic touch screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202437195U CN201754272U (en) | 2010-06-25 | 2010-06-25 | Electromagnetic touch screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201754272U true CN201754272U (en) | 2011-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202437195U Expired - Fee Related CN201754272U (en) | 2010-06-25 | 2010-06-25 | Electromagnetic touch screen |
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| CN (1) | CN201754272U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120134850A (en) * | 2011-06-03 | 2012-12-12 | 삼성전자주식회사 | Electromagnetic resonance sensing device sharing channel |
-
2010
- 2010-06-25 CN CN2010202437195U patent/CN201754272U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120134850A (en) * | 2011-06-03 | 2012-12-12 | 삼성전자주식회사 | Electromagnetic resonance sensing device sharing channel |
| EP2530566A3 (en) * | 2011-06-03 | 2015-08-26 | Samsung Electronics Co., Ltd. | Electromagnetic resonance sensing apparatus for a touch screen |
| CN102841705B (en) * | 2011-06-03 | 2016-12-14 | 三星电子株式会社 | EMR electromagnetic resonance for touch screen senses device |
| KR101711668B1 (en) | 2011-06-03 | 2017-03-13 | 삼성전자주식회사 | Electromagnetic resonance sensing device sharing channel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHENZHEN BYD ELECTRONIC COMPONENT CO., LTD. Free format text: FORMER OWNER: BIYADI CO., LTD. Effective date: 20150901 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150901 Address after: 518119 Guangdong province Shenzhen City Dapeng new Kwai town Yanan Road No. 1 building experimental Byd Co Patentee after: Shenzhen BYD Electronic Component Co., Ltd. Address before: BYD 518118 Shenzhen Road, Guangdong province Pingshan New District No. 3009 Patentee before: Biyadi Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110302 Termination date: 20190625 |