CN100507644C - Contact-controlling LCD device - Google Patents
Contact-controlling LCD device Download PDFInfo
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- CN100507644C CN100507644C CNB031597769A CN03159776A CN100507644C CN 100507644 C CN100507644 C CN 100507644C CN B031597769 A CNB031597769 A CN B031597769A CN 03159776 A CN03159776 A CN 03159776A CN 100507644 C CN100507644 C CN 100507644C
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- touch control
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Abstract
The invention relates to a touch-controlled liquid crystal display. It at least includes an external shell, a liguid crystal display conponent, a touch-controlled panel, a transparent comductive layer, a control circuit board and a conductive buffer component. On the surface of the touch-controlled panel a transparent conductive layer is set, and the conductive buffer component is placed between the external shell and transparent conductive layer, the conductive buffer component can be electrically connected with elective layer, the conductive buffer component can be electrically connected with electrically-grounded external shell or electrically-grounded external shell of the conductive component in the liquid crystal display component so as to derive statical electricity. Said touch-controlled liguid crystal display con prevent the statical electricity from passing through touch-controlled panel and leading into control circuit board, and can effectively derive statical electricity to protect the electronic component in the control circuit board.
Description
Technical field
The invention relates to a kind of touch control type LCD device, and particularly relevant for a kind of touch control type LCD device with Electrostatic Discharge safeguard function.
Background technology
Along with industry is flourishing day by day, mobile phone (Mobile Phone), personal digital assistant (PersonalDigital Assistant), mobile computer (Notebook) and Tablet PC digitization tools such as (Planet Computer) develop towards direction more convenient, multi-functional and attractive in appearance invariably.Yet, display screen in mobile phone, personal digital assistant, mobile computer and the Tablet PC is indispensable man-machine communication interface, the display screen that sees through the said goods can bring more facility for user's operation, and wherein most display screen all is main flow with the liquid crystal indicator.
In recent years, fast development and application along with infotech, wireless mobile communication and information household appliances, in order to reach more convenient, lighter and handyizatioier of volume and more humane purpose, many information products are by input medias such as traditional keyboard or mouses, change into and use touch panel (Touch Panel), wherein the most popular more now product of touch control type LCD device as input media.
Please refer to the 1st figure, it is the diagrammatic cross-section of the known a kind of touch control type LCD device of expression.Touch control type LCD device 100 for example is made of a shell 110, a LCD assembly 120, a control circuit board 130 and a contact panel 140.Wherein, contact panel 140 is attached on the LCD assembly 120, and control circuit board 130 then is electrically connected with LCD assembly 120 and contact panel 140 respectively.LCD assembly 120, control circuit board 130 and contact panel 140 are coated by shell 110.In addition, for fear of shell 110 scratch contact panels 140, can one bolster 112 be set in contact panel 140 and shell 110 contact positions usually, this bolster 112 can improve the attaching characteristic between shell 110 and the contact panel 140.
By the above, as user during with finger or object (as pointer etc.) contact contact panel 140, contact panel 140 can produce the change (as pressure drop or electric current variation etc.) of an electrical property on finger or object institute position contacting, the change on this electrical property can be converted to a controlling signal and be sent on the control circuit board 130.Carry out after the data processing union obtains a result via CPU (central processing unit), again by control circuit board 130 outputs one display signal to LCD assembly 120, and image is presented at the user at the moment via LCD assembly 120.
At present the manufacturing technology of contact panel has been tending towards ripe, and the demand of the characteristic electron of itself (as insulation impedance etc.) in the time of also meeting running.Yet, after contact panel and LCD assembly are assembled into a touch control type LCD device, but the problem that static can't be derived may take place.Anticipate promptly, the stationary electrode that contact panel produced in the touch control type LCD device might directly be imported in control circuit board or other data processing equipment, and damages electronic package wherein, causes product to operate.
Summary of the invention
Therefore, purpose of the present invention is providing a kind of touch control type LCD device exactly, is suitable for the static on the contact panel is directed at ground connection, with the electronic package in the protection touch control type LCD device.
Based on above-mentioned purpose, the present invention proposes a kind of touch control type LCD device, comprises a shell, a LCD assembly, a contact panel, a transparency conducting layer and a control circuit board at least.Wherein, shell has one and shows opening, and LCD assembly is disposed in the shell.Contact panel is disposed in the shell, and wherein contact panel is positioned on the LCD assembly, and expose by the demonstration opening of shell the subregion of contact panel.In addition, transparency conducting layer is disposed on the surface of contact panel away from LCD assembly, and control circuit board is disposed in the shell, and is electrically connected with LCD assembly and contact panel.It should be noted that touch control type LCD device of the present invention more for example comprises that a conductie buffer spare is disposed between shell and the transparency conducting layer, and this conductie buffer spare electrical ground.
Described according to the preferred embodiments of the present invention, the material of above-mentioned shell can comprise conductor and nonconductor.When the material of shell was conductor, conductie buffer spare by shell electrical ground.
Described according to the preferred embodiments of the present invention, above-mentioned LCD assembly is for example by a framework, a liquid crystal panel, a backlight assembly and a conductor assembly shell.Wherein, liquid crystal panel and backlight assembly all are disposed in the framework, and backlight assembly is positioned at the liquid crystal panel below.In addition, framework, liquid crystal panel and backlight assembly all are fixed in the conductor assembly shell.It should be noted that conductor assembly shell that the conductie buffer spare of present embodiment can be by LCD assembly electrical ground.
Described according to the preferred embodiments of the present invention, above-mentioned contact panel for example is made of one first base material, one first conductive layer, one second base material, one second conductive layer, a plurality of separation material, one first bus, one second bus and an adhesion layer.Wherein first conductive layer is disposed on the surface of first base material, and second base material is disposed at first base material top, and second conductive layer then is disposed on the surface of contiguous first base material of second base material.In addition, a plurality of separation materials are disposed between first conductive layer and second conductive layer, and first bus configuration is on first conductive layer, and around separation material.In addition, second bus configuration is in first bus top, and adhesion layer is disposed between first bus and second bus, so that first bus and the second bus electrical isolation.
Described according to the preferred embodiments of the present invention, above-mentioned contact panel for example also comprises a scratch resistant layer, is disposed between second base material and the transparency conducting layer.
Described according to the preferred embodiments of the present invention, the first above-mentioned base material and second base material all can be hard substrate (rigid substrate) and flexible substrate (flexible substrate) one of them, and the material of first base material and second base material for example can be glass, plastics and polyester (PET) one of them.
Described according to the preferred embodiments of the present invention, the first above-mentioned bus and the material of second bus for example can be silver metal, and the material of separation material for example can be dielectric materials such as oxygen silicide, nitrogen silicide.
Described according to the preferred embodiments of the present invention, the material of above-mentioned transparency conducting layer for example can be indium tin oxide (ITO) and indium-zinc oxide (IZO) one of them, and conductie buffer spare for example can be conductive rubber.In addition, the present invention's some conductive filaments that for example can mix in conductie buffer spare are as steel wire, copper wire etc.
Based on above-mentioned, touch control type LCD device of the present invention is to utilize transparency conducting layer collocation conductie buffer spare that the static that contact panel produced in the touch control type LCD device is directed at ground connection, and the approach of its ground connection for example passes through shell or the interior conductive component shell of LCD assembly electrical ground.In addition, conductie buffer spare of the present invention is for example made by conductive rubber, and wherein optionally conductive doped silk (as steel wire or copper wire etc.) is to increase the conductivity of conductie buffer spare.By touch control type LCD device of the present invention, can derive static effectively, and prevent that static from seeing through contact panel and importing control circuit board or other control device, with the electronic package in protection control circuit board or other control device.
For above and other objects of the present invention, feature and advantage can be become apparent,, and in conjunction with the accompanying drawings, be described in detail below below especially exemplified by a preferred embodiment.
Description of drawings
Fig. 1 is the diagrammatic cross-section of the known a kind of touch control type LCD device of expression;
Fig. 2 is the diagrammatic cross-section of the touch control type LCD device of the expression first embodiment of the present invention;
Fig. 3 is the assembling processing procedure figure of the contact panel of expression touch control type LCD device of the present invention;
Fig. 4 is the diagrammatic cross-section of the touch control type LCD device of the expression second embodiment of the present invention;
Look synoptic diagram on Fig. 5 expression touch control type LCD device of the present invention.
Accompanying drawing indicates explanation:
100: touch control type LCD device
110: shell
112: bolster
120: LCD assembly
130: control circuit board
140: contact panel
200: touch control type LCD device
210: shell
212: show opening
220: LCD assembly
222: framework
224: liquid crystal panel
226: backlight assembly
228: package shell
230: contact panel
232: the first base materials
234: the first conductive layers
236: the second base materials
238: the second conductive layers
240: a plurality of separation materials
242: the first buses
244: the second buses
246: adhesion layer
248: scratch resistant layer
250: transparency conducting layer
260: control circuit board
270: conductie buffer spare
300: touch control type LCD device
Embodiment
With reference to figure 2, it is the diagrammatic cross-section of the touch control type LCD device of the expression first embodiment of the present invention.Touch control type LCD device 200 mainly is made of a shell 210, a LCD assembly 220, a contact panel 230, a transparency conducting layer 250, a control circuit board 260 and a conductie buffer spare 270.Below in will be illustrated with regard to the feature of above-mentioned member.
210 on shell is in the outside of touch control type LCD device of the present invention, is used for coating the member of above-mentioned other, and this shell 210 for example is electrical ground a conductor casing.In addition, have one on the shell 210 and show opening 212, make the subregion of contact panel 230 to show that opening 212 exposes by this.
In order to make disclosing of the first above-mentioned embodiment more detailed, below the general elaborates with regard to the structure of contact panel again.
Simultaneously referring to figs. 2 and 3, wherein Fig. 3 is the assembling processing procedure figure of the contact panel of expression touch control type LCD device of the present invention.Contact panel 230 for example is made of one first base material 232, one first conductive layer 234, one second base material 236, one second conductive layer 238, a plurality of separation material 240, one first bus 242, one second bus 244, an adhesion layer 246 and a scratch resistant layer 248.
Wherein first base material 232 and second base material 236 for example all are flexible substrate (flexiblesubstrate), and its material for example is polyester (PET), make control panel 230 can tolerate the deformation of specific degrees.In addition, second base material 236 is positioned at the top of first base material 232, and dispose first conductive layer 234 and second conductive layer 238 respectively on first base material 232 and second base material, 236 facing surfaces, scratch resistant layer 248 then is disposed between second base material 236 and the transparency conducting layer 250.
A plurality of separation materials 240 are disposed between first conductive layer 234 and second conductive layer 238, and in order to supporting first conductive layer 234 and second conductive layer 238, and the material of separation material 240 is dielectric material (as oxygen silicide or a nitrogen silicide etc.).In addition, the material of first bus 242 and second bus 244 for example is a silver metal, and first bus 242 is disposed on first conductive layer 234, and around separation material 240.Second bus 244 is disposed at first bus, 242 tops, and adhesion layer 246 is disposed between first bus 242 and second bus 244, so that first bus 242 and second bus, 244 electrical isolations.
When finger or object (as pointer etc.) apply an external force on transparency conducting layer 250 time, to make second conductive layer 238 on finger or the relative position that object contacted, produce deformation, thereby cause first conductive layer 234 and 238 changes (as pressure drop or electric current variation etc.) that produce an electricity of second conductive layer.Thus, will produce an induction current on first bus 242 and second bus 244, be input in the control circuit board 260 as controlling signal.
In the first above-mentioned embodiment, touch control type LCD device of the present invention is to utilize transparency conducting layer collocation conductie buffer spare that the static that contact panel produced in the touch control type LCD device is directed at ground connection.Because the shell of touch control type LCD device of the present invention is electrical ground a conductor casing, so only need conductie buffer spare just can to make static be directed at ground connection by shell with after shell is electrically connected.
Yet the shell of touch control type LCD device on the market is not all to be conductor casing now, wherein more has the shell of part to be made by non-conductive material such as for example plastics.In this case, touch control type LCD device of the present invention still can be represented the conductor casing electrical ground on other electronic component (as electronic components such as LCD assembly or control circuit boards), and the static that contact panel is produced is directed at ground connection.Below in will enumerate another preferred embodiment of the present invention again and be illustrated.
With reference to the 4th figure, it is the diagrammatic cross-section of the touch control type LCD device of the expression second embodiment of the present invention.In the second embodiment of the present invention, the shell 210 in touch control type LCD device 300 is the nonconductor, the structure of all the other members and configuration relation all with first embodiment in identical, so give identical diagram numbering, and no longer repeat specification.What deserves to be mentioned is that LCD assembly 220 is for example by a framework (frame) 222, a liquid crystal panel 224, a backlight assembly 226 and 228 formations of a package shell (bezel).Wherein, liquid crystal panel 224 and backlight assembly 226 all are arranged in the framework 222, and liquid crystal panel 224 is positioned on the backlight assembly 226.In addition, in 228 of package shells are fixed in framework 222, liquid crystal panel 224 and backlight assembly 226.Wherein, the package shell in the LCD assembly 220 228 is electrical ground a conductor assembly shell.Be electrically connected to package shell 228 so conductie buffer spare 270 can change into, thereby make static that contact panel produced change to be directed at ground connection by package shell.
In sum, touch control type LCD device of the present invention is to utilize transparency conducting layer collocation conductie buffer spare, is directed at ground connection in order to the static that contact panel produced with touch control type LCD device.With reference to figure 5, its illustrate touch control type LCD device of the present invention on look synoptic diagram.As shown in Figure 5, shell 210 is disposed at contact panel 230 tops, and exposes demonstration opening 212, and conductie buffer spare 270 then is disposed between contact panel 230 and the shell 210.Wherein,, then can directly conductie buffer spare 270 be electrically connected with shell 210, make static be directed at ground connection by shell 210 if shell 210 is electrical ground a conductor casing.If the material of shell 210 is a nonconductor, touch control type LCD device 200 of the present invention still can be electrically connected to conductie buffer spare 270 on LCD assembly (being shown among the 2nd figure) or other conductor casing such as electronic components such as control circuit boards, and the conductor casing by above-mentioned electronic component is directed at ground connection with static again.
In addition, in touch control type LCD device of the present invention, conductie buffer spare is for example made by conductive rubber, and optionally mixes a plurality of conductive filaments (as steel wire or copper wire etc.) in conductie buffer spare, in order to increase the conductivity of conductie buffer spare.The material of transparency conducting layer for example can be indium tin oxide (ITO) or indium-zinc oxide (IZO) etc., and first base material in the contact panel and the visual demand of second base material be chosen as hard substrate (rigid substrate) or flexible substrate (flexible substrate) one of them, and its material for example can be glass, plastics or polyester etc.By touch control type LCD device of the present invention, can derive static effectively, and prevent that static from seeing through contact panel and importing control circuit board or other control device, with the electronic package in protection control circuit board or other control device.
Though the present invention with a preferred embodiment openly as above; right its is not in order to limit the present invention; any those skilled in the art; without departing from the spirit and scope of the present invention; should do some and change and retouching, thus protection scope of the present invention when with claims of application scope was defined is as the criterion.
Claims (9)
1. touch control type LCD device comprises:
One shell, this shell have one and show opening;
One LCD assembly, this LCD assembly are disposed in this shell;
One contact panel, this contact panel are disposed in this shell, and wherein this contact panel is positioned on this LCD assembly, and expose by this demonstration opening the subregion of this contact panel;
One transparency conducting layer, this transparency conducting layer are disposed on the outside surface of this contact panel away from this LCD assembly; And
One control circuit board, this control circuit board are disposed in this shell, and wherein this control circuit board is electrically connected with this LCD assembly and this contact panel;
Wherein, this contact panel comprises:
One first base material;
One first conductive layer, this first conductive layer are disposed on this first substrate surface;
One second base material, this second base material are disposed at this first base material top;
One second conductive layer, this second conductive layer are disposed on the surface of contiguous this first base material of this second base material;
A plurality of separation materials that are disposed between this first conductive layer and this second conductive layer;
One first bus, this first bus configuration are on this first conductive layer, and around those separation materials;
One second bus, this second bus configuration is in this first bus top; And
One adhesion layer, this adhesion layer are disposed between this first bus and this second bus, so that this first bus and this second bus electrical isolation.
2. touch control type LCD device as claimed in claim 1, it is characterized in that: comprise that also one is disposed at the conductie buffer spare between this shell and this transparency conducting layer, wherein the material of this shell comprises conductor, and this conductie buffer spare by this conductor casing electrical ground.
3. touch control type LCD device as claimed in claim 1 is characterized in that: this LCD assembly comprises:
One framework;
One liquid crystal panel, this liquid crystal panel are disposed in this framework;
One backlight assembly, this backlight assembly is disposed in this framework, and is positioned at this liquid crystal panel below; And
In one conductor assembly shell, this conductor assembly shell are fixed in this framework, this liquid crystal panel and this backlight assembly.
4. touch control type LCD device as claimed in claim 3 is characterized in that: comprise that also one is disposed at the conductie buffer spare between this shell and this transparency conducting layer, wherein this conductie buffer spare by this conductor assembly shell electrical ground.
5. touch control type LCD device as claimed in claim 1 is characterized in that: this contact panel also comprises a scratch resistant layer, and this scratch resistant layer is disposed between this second base material and this transparency conducting layer.
6. touch control type LCD device as claimed in claim 1 is characterized in that: this first base material and this second base material be hard material or pliability material one of them.
7. touch control type LCD device as claimed in claim 1 is characterized in that: the material of this first bus and this second bus comprises silver metal, and wherein the material of those separation materials comprises dielectric material.
8. touch control type LCD device as claimed in claim 2, it is characterized in that: this conductie buffer spare comprises conductive rubber, also comprises a plurality of conductive filaments that are doped in this conductie buffer spare.
9. touch control type LCD device as claimed in claim 4, it is characterized in that: this conductie buffer spare comprises conductive rubber, also comprises a plurality of conductive filaments that are doped in this conductie buffer spare.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031597769A CN100507644C (en) | 2003-09-25 | 2003-09-25 | Contact-controlling LCD device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031597769A CN100507644C (en) | 2003-09-25 | 2003-09-25 | Contact-controlling LCD device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1601335A CN1601335A (en) | 2005-03-30 |
| CN100507644C true CN100507644C (en) | 2009-07-01 |
Family
ID=34660753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031597769A Expired - Lifetime CN100507644C (en) | 2003-09-25 | 2003-09-25 | Contact-controlling LCD device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100507644C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US9720281B2 (en) | 2012-10-29 | 2017-08-01 | Dai Nippon Printing Co., Ltd. | Optical laminate for front surface of in-cell touch panel liquid crystal element and in-cell touch panel liquid crystal display device using same |
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| CN101452351B (en) * | 2007-12-03 | 2010-11-17 | 义强科技股份有限公司 | High luminous transmittance touch control device |
| TWI356333B (en) | 2008-03-21 | 2012-01-11 | Chimei Innolux Corp | Liquid crystal display and remote controlling syst |
| CN101727225B (en) * | 2008-10-31 | 2011-10-05 | 胜华科技股份有限公司 | Touch panel and touch liquid crystal display |
| CN102446012B (en) * | 2010-09-30 | 2015-04-08 | 联胜（中国）科技有限公司 | Touch panel structure and touch display panel |
| CN102447309A (en) * | 2010-10-11 | 2012-05-09 | 东莞万士达液晶显示器有限公司 | Electronic device |
| CN103365452B (en) * | 2012-04-03 | 2016-05-18 | 天津富纳源创科技有限公司 | Electronic installation and touch-screen thereof |
| JP6136526B2 (en) * | 2012-10-29 | 2017-05-31 | 大日本印刷株式会社 | Optical laminate for front surface of in-cell touch panel liquid crystal element and in-cell touch panel type liquid crystal display device using the same |
| CN103984142A (en) * | 2014-05-09 | 2014-08-13 | 无锡博一光电科技有限公司 | Antistatic structure for touch layer in On-cell technology |
| CN105373245B (en) * | 2014-08-19 | 2020-05-22 | 宏达国际电子股份有限公司 | Cover plate and electronic device |
| CN104698664B (en) * | 2015-03-30 | 2018-07-13 | 惠州Tcl移动通信有限公司 | LCD liquid crystal display die sets with touch screen and mobile terminal |
| CN105068291A (en) * | 2015-08-05 | 2015-11-18 | 业成光电（深圳）有限公司 | Touch control liquid crystal module |
| CN105185003A (en) * | 2015-09-14 | 2015-12-23 | 深圳市新国都支付技术有限公司 | POS machine safety protection method, installation structure and POS machine based thereon |
| CN108761875A (en) * | 2018-05-19 | 2018-11-06 | 江苏中致显科技有限公司 | A kind of novel electron touch screen |
-
2003
- 2003-09-25 CN CNB031597769A patent/CN100507644C/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9720281B2 (en) | 2012-10-29 | 2017-08-01 | Dai Nippon Printing Co., Ltd. | Optical laminate for front surface of in-cell touch panel liquid crystal element and in-cell touch panel liquid crystal display device using same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1601335A (en) | 2005-03-30 |
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