CN201218887Y - Condenser type touch control display panel - Google Patents
Condenser type touch control display panel Download PDFInfo
- Publication number
- CN201218887Y CN201218887Y CNU2008201178497U CN200820117849U CN201218887Y CN 201218887 Y CN201218887 Y CN 201218887Y CN U2008201178497 U CNU2008201178497 U CN U2008201178497U CN 200820117849 U CN200820117849 U CN 200820117849U CN 201218887 Y CN201218887 Y CN 201218887Y
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- layer
- display panel
- touch
- control circuit
- liquid crystal
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Abstract
The utility model discloses a capacitor type touch control display panel, comprising an upper transparent substrate disposed above a liquid crystal layer, a lower transparent substrate disposed under the liquid crystal layer, an upper transparent conductive layer disposed between the upper transparent layer and the liquid crystal layer, a lower transparent conductive layer disposed between the liquid crystal layer and the transparent substrate, an upper polarizing plate combined above the upper transparent substrate, a lower polarizing plate combined under the lower transparent substrate, a touch control circuit layer disposed between the upper transparent substrate and the upper transparent conductive layer, a first insulation layer disposed between the touch control circuit layer and the upper transparent conductive layer. The touch control display panel is in touch with the polarizing plate, and makes the touch control circuit layer generate capacitor effect. Design of the utility model is capable of saving production material, having advantages of simple assembly process, high yield, and easiness for product thinning.
Description
Technical field
The utility model relates to a kind of display panel, is specifically related to a kind ofly be laid with the touch-control circuit layer, and possesses the display panel of touch-control input and functipnal capability.
Background technology
Existing personal digital assistant (Personal Digital Assistant, PDA), palmtop computer (Palm-Sized PC) and information household appliances electronic products such as (Information Appliance), mostly be provided with Trackpad (Touch Panel) on its display panel (Display Panel); Above-mentioned display panel can see through Trackpad Presentation Function display image and literal; The user can utilize conductive bodies such as finger or pointer, and the image and the literal that show according to the Trackpad surface click, to import and to operate.
See also shown in Figure 1; be above-mentioned previous panel technology; configuration Trackpad 5 on display panel 1a; periphery between Trackpad 5 and this display panel 1a is established an adhesion layer 6; and Trackpad 5 tools, one glass substrates 51 (Glass Substrate); a touch-control circuit layer 52 is laid in the bottom surface of glass substrate 51; touch-control circuit layer 52 can be tin indium oxide (ITO) conductive layer; and the compound transparent protective coating 55 (OverCoat) in touch-control circuit layer 52 bottom surface; protective finish 55 is a megohmite insulant (silicon nitride for example; silicon dioxide; materials such as class photoresistance); avoid the scratch damage with protection touch-control circuit layer 52, and in order to combining display panel 1a.
Display panel 1a can be a LCDs (Liquid Crystal Display, LCD), between a top glass substrate 11a and a lower glass substrate 12a, fill a liquid crystal layer 10a (as shown in Figure 1), Polarizer 15a on the end face of top glass substrate 11a compound, and lay transparency conducting layer 13a between the bottom surface of top glass substrate 11a and the liquid crystal layer 10a, the bottom surface of lower glass substrate 12a compound Polarizer once 16a, and lay transparency conducting layer 14a between the end face of lower glass substrate 12a and this liquid crystal layer 10a.
The video picture principle of above-mentioned LCDs, it is the driving of electric field between utilization upper and lower transparency conducting layer 13a, the 14a, produce the field effect that liquid crystal molecule reverses,, and then see through colored filter display image or the literal that top glass substrate 11a is constituted with seeing through or the blocking running of control light source.The user can be pressed on this Trackpad 5 with respect to the position of image or literal by watch crystal substrate 51, operates and imports.
But, above-mentioned on display panel 1a the configuration Trackpad 5 electronic product in, on the display panel 1a, lower glass substrate 11a, the glass substrate 51 of 12a and Trackpad 5 all uses identical glass material to make, therefore can repeat to expend more production material during fabrication, and display panel 1a and Trackpad 5 all are being to produce separately earlier to finish traditionally, repeatedly putting in regular turn fits again is integral, so its linkage editor is comparatively complicated, and waste man-hour, easy output defective products, and increase because of repeatedly putting the problem of the scalariform thickness that forms on foot, be unfavorable for the thin type design of electronic product, so need be improved.
Summary of the invention
The purpose of this utility model is to provide a kind of and is laid with the touch-control circuit layer, and possesses the display panel of touch-control input and functipnal capability.
For reaching above-mentioned purpose, the concrete content of the utility model is:
A kind of capacitance type touch control display panel comprises:
One liquid crystal layer;
Transparency carrier on one is arranged at the liquid crystal layer top;
Once transparency carrier is arranged at the liquid crystal layer below;
Transparency conducting layer on one is laid between transparency carrier and the liquid crystal layer;
Once transparency conducting layer is laid between liquid crystal layer and the following transparency carrier;
Polarizer on one is laid in the transparency carrier top;
Once Polarizer is laid in down the transparency carrier below;
One touch-control circuit layer is laid between transparency carrier and the last transparency conducting layer;
One first insulation course is laid between touch-control circuit layer and the last transparency conducting layer.
Wherein the touch-control circuit layer comprises a conducting film, and the edge junction of conducting film has at least one lead.
Wherein be provided with one between touch-control circuit layer and the last transparency conducting layer and stop noise and and touch-control circuit layer and go up the protective layer of mutually insulated between the transparency conducting layer.
Wherein go up transparency conducting layer and be one and stop the protective layer of noise.
Wherein the touch-control circuit layer is made by nontransparent metal material.
Wherein first insulation course is a resistance layer of the same colour.
Wherein go up transparency conducting layer and be one and stop the protective layer of noise.
One protective layer that stops noise wherein is set between touch-control circuit layer and the look resistance layer, lays one second insulation course between touch-control circuit layer and the protective layer.
The effect of the utility model capacitance type touch control display panel is: material is produced in saving, linkage editor is simple, throughput rate is high and be beneficial to the design of product thin type.
Description of drawings
Fig. 1: be the cut-away view of configuration Trackpad on the conventional display panels.
Fig. 2: be the cut-away view of composition form of the present utility model.
Fig. 3: be the configuration schematic diagram of conducting film of the present utility model and plain conductor.
Fig. 4: for one of Fig. 2 adds the cut-away view of form.
Fig. 5: be the cut-away view of another additional form of Fig. 2.
Embodiment
Below the effect forming and can produce with regard to the structure of the utility model capacitance type touch control display panel, conjunction with figs. is described in detail as follows with preferred embodiment:
See also shown in Figure 2, cut-away view for preferable composition form of the present utility model, the utility model capacitance type touch control display panel 1 is described, include a liquid crystal layer 10, these liquid crystal layer 10 tops are provided with transparency carrier 11 on, these liquid crystal layer 10 belows are provided with transparency carrier 12, should go up and lay transparency conducting layer 13 between transparency carrier 11 and this liquid crystal layer 10, lay transparency conducting layer 14 between this liquid crystal layer 10 and this time transparency carrier 12, should go up transparency carrier 11 tops and establish Polarizer 15 on, and the upper surface of last Polarizer 15 has a viewing area 150, Polarizer 16 is established in following transparency carrier 12 belows, last transparency carrier 11 and this are gone up and are laid a touch-control circuit layer 2 between the transparency conducting layer 13, lay first a transparent insulation course 31 between touch-control circuit layer 2 and the last transparency conducting layer 13.The utility model capacitance type touch control display panel 1 is formed by above each stacking putting.
Wherein touch-control circuit layer 2 comprises a conducting film 20 (as shown in Figure 3), conducting film 20 is a continuous level structure, and the edge junction of conducting film 20 has at least one plain conductor 21, in this enforcement, can be connected a plurality of plain conductors 21 in the edge of conducting film 20, and on conducting film 20, apply the driving voltage of the accurate position of a predetermined voltage, therefore can on conducting film 20, set up the potential value of a homogeneous; Perhaps, also can apply the driving voltage of the accurate position of a predetermined voltage at conducting film 20 1 ends, and at the other end by a ground connection, so can on conducting film 20, set up a gradient potential value.
The material of described upper and lower transparency carrier 11,12 can be glass, plastics or other insulating material (as shown in Figure 2); The conducting film 20 of touch-control circuit layer 2 can be made by transparent conductive material, and transparent conductive material can be tin indium oxide (ITO); The laying mode of touch-control circuit layer 2 is to adopt technology such as traditional coating, exposure, development and etching to be processed into.
Described display panel 1 can be in the viewing area 150 display images and literal (as shown in Figure 2), when the user goes up the viewing area 150 of Polarizer 15 with finger or the touching of other conductive body, owing to have the potential value or the gradient potential value of homogeneous on the conducting film 20 of touch-control circuit layer 2, so the position of conducting film 20 acceptance touchings can be pointed or other conductive body is responded to and the generation capacity effect, and then the signal of the variable quantity of induced electricity flow valuve, and be sent to an extraneous microprocessor (figure does not show) by lead 21, variable quantity by current value calculates the position that acceptance presses, to reach the purpose of touch-control.
According to as can be known above-mentioned, the utility model is laid touch-control circuit layer 2 below last transparency carrier 11, can omit the traditional Trackpad that is configured on the display panel, effectively save according to this and produce the glass material that traditional Trackpad institute must use, and can simplify the job sequence that assembles display panel, and significantly reduce the cost and the time of producing and assembling, promote the qualification rate of display panel simultaneously, and help the design of product thin type at fit on.
In addition, a transparent protective layer 19 (as shown in Figure 5) that can stop noise is set between touch-control circuit layer 2 and the last transparency conducting layer 13, the electromagnetic riveting machine signal that drives with isolated panel 1, and protective layer 19 and touch-control circuit layer 2 and on mutually insulated between the transparency conducting layer 13; Wherein go up transparency conducting layer 13 and also can be used as protective layer use (as shown in Figure 2), the conducting film 20 of touch-control circuit layer 2 can be nontransparent metal material and makes, in order to replace shading black matrix" (Black Matrix) layer in the conventional display panels, nontransparent metal material can be chromium (Cr), and all the other formations and embodiment are equal to the embodiment of Fig. 2.
Can use (as shown in Figure 4) as resistance layer of the same colour by first insulation course 31, and cooperate a nontransparent shielding layer 18 to implement; On shielding layer 18 can be located in this enforcement between transparency carrier 11 and the touch-control circuit layer 2, can be black-matrix layer or other in fact is enough to produce the multiple layer or the coating of interception, to replace the black-matrix layer in the conventional display panels, last transparency conducting layer 13 also can be used as protective layer and uses, and all the other formations and embodiment are equal to the embodiment of Fig. 2.
Can also use (as shown in Figure 5) as resistance layer of the same colour by first insulation course 31, and cooperate a nontransparent shielding layer 18 to implement; On shielding layer 18 can be located in this enforcement between transparency carrier 11 and this touch-control circuit layer 2, can be black-matrix layer or other in fact is enough to produce the multiple layer or the coating of interception, to replace the black-matrix layer in the conventional display panels, protective layer 19 can be arranged between touch-control circuit layer 2 and this first insulation course 31 as the use of look resistance layer, and lay second a transparent insulation course 32 between touch-control circuit layer 2 and this protective layer 19, all the other formations and embodiment are equal to the embodiment of Fig. 2.
Though the utility model is described by previous embodiment, but still can change its form and details, make not breaking away under the spirit of the present utility model.Aforementioned is the most rational using method of the utility model, one of the mode that can specifically implement for the utility model only, but not as limit.
Claims (8)
1. a capacitance type touch control display panel is characterized in that, comprises:
One liquid crystal layer;
Transparency carrier on one is arranged at the liquid crystal layer top;
Once transparency carrier is arranged at the liquid crystal layer below;
Transparency conducting layer on one is laid between transparency carrier and the liquid crystal layer;
Once transparency conducting layer is laid between liquid crystal layer and the following transparency carrier;
Polarizer on one is laid in the transparency carrier top;
Once Polarizer is laid in down the transparency carrier below;
One touch-control circuit layer is laid between transparency carrier and the last transparency conducting layer;
One first insulation course is laid between touch-control circuit layer and the last transparency conducting layer.
2. capacitance type touch control display panel as claimed in claim 1 is characterized in that wherein the touch-control circuit layer comprises a conducting film, and the edge junction of conducting film has at least one lead.
3. capacitance type touch control display panel as claimed in claim 1 is characterized in that, wherein is provided with one between touch-control circuit layer and the last transparency conducting layer and stops noise and and touch-control circuit layer and go up the protective layer of mutually insulated between the transparency conducting layer.
4. capacitance type touch control display panel as claimed in claim 1 is characterized in that, wherein goes up transparency conducting layer and is one and stop the protective layer of noise.
5. capacitance type touch control display panel as claimed in claim 4 is characterized in that wherein the touch-control circuit layer is made by nontransparent metal material.
6. capacitance type touch control display panel as claimed in claim 1 is characterized in that, wherein first insulation course is a resistance layer of the same colour.
7. capacitance type touch control display panel as claimed in claim 6 is characterized in that, wherein goes up transparency conducting layer and is one and stop the protective layer of noise.
8. capacitance type touch control display panel as claimed in claim 6 is characterized in that, a protective layer that stops noise wherein is set between touch-control circuit layer and the look resistance layer, lays one second insulation course between touch-control circuit layer and the protective layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201178497U CN201218887Y (en) | 2008-06-17 | 2008-06-17 | Condenser type touch control display panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201178497U CN201218887Y (en) | 2008-06-17 | 2008-06-17 | Condenser type touch control display panel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201218887Y true CN201218887Y (en) | 2009-04-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201178497U Expired - Lifetime CN201218887Y (en) | 2008-06-17 | 2008-06-17 | Condenser type touch control display panel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201218887Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102043184A (en) * | 2009-10-09 | 2011-05-04 | Lg化学株式会社 | Integrated touch polarizer and touch panel comprising the same |
| CN101995990B (en) * | 2009-08-26 | 2013-01-09 | 群康科技(深圳)有限公司 | Touch panel and positioning method of touch points of same |
| CN103197814A (en) * | 2011-10-14 | 2013-07-10 | 禾瑞亚科技股份有限公司 | System and method for communication through touch screens |
| WO2014000368A1 (en) * | 2012-06-29 | 2014-01-03 | 上海天马微电子有限公司 | Capacitive liquid crystal display touch panel |
| US9063603B2 (en) | 2011-11-18 | 2015-06-23 | Tpk Touch Solutions (Xiamen) Inc. | Touch display device with pixel electrodes and sensing pads |
-
2008
- 2008-06-17 CN CNU2008201178497U patent/CN201218887Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101995990B (en) * | 2009-08-26 | 2013-01-09 | 群康科技(深圳)有限公司 | Touch panel and positioning method of touch points of same |
| CN102043184A (en) * | 2009-10-09 | 2011-05-04 | Lg化学株式会社 | Integrated touch polarizer and touch panel comprising the same |
| CN102043184B (en) * | 2009-10-09 | 2013-10-09 | Lg化学株式会社 | Integrated touch polarizer and touch panel comprising the same |
| CN103197814A (en) * | 2011-10-14 | 2013-07-10 | 禾瑞亚科技股份有限公司 | System and method for communication through touch screens |
| CN103197814B (en) * | 2011-10-14 | 2016-08-17 | 禾瑞亚科技股份有限公司 | The communication means of touch screen and system |
| US9063603B2 (en) | 2011-11-18 | 2015-06-23 | Tpk Touch Solutions (Xiamen) Inc. | Touch display device with pixel electrodes and sensing pads |
| WO2014000368A1 (en) * | 2012-06-29 | 2014-01-03 | 上海天马微电子有限公司 | Capacitive liquid crystal display touch panel |
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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: 20090408 |
|
| CX01 | Expiry of patent term |