CN203217539U - Touch display panel and display device - Google Patents
Touch display panel and display device Download PDFInfo
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- CN203217539U CN203217539U CN 201320155224 CN201320155224U CN203217539U CN 203217539 U CN203217539 U CN 203217539U CN 201320155224 CN201320155224 CN 201320155224 CN 201320155224 U CN201320155224 U CN 201320155224U CN 203217539 U CN203217539 U CN 203217539U
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Abstract
The utility model discloses a touch display panel. The touch display panel comprises a TFT (Thin Film Transistor) array substrate with gratings and a contraposition substrate with black matrixes; at least a grating is designed into a touch scanning line; at least a touch induction line is arranged on the black matrixes of the contraposition substrate; a touch capacitor is formed at an intersection position of the touch canning line and the touch induction line in different panels. The utility model also discloses a display device comprising the touch display panel. The touch display panel and the display device comprising the same are capable of solving the problem that the existing display device is low in pixel aperture opening ratio due to the fact that special touch scanning lines are added.
Description
Technical field
The utility model relates to the display technique field, refers to a kind of touch-control display panel and display device especially.
Background technology
Along with the development of intelligent mobile terminal, mobile terminal of touch screen is favored by increasing user.The main implementation of existing touch-screen has two kinds of add on and on cell, and wherein, add on refers to be about to the mode of fitting independent touch-screen and be fitted on the LCDs, forms one on the whole and has and show and the display device of touch controllable function; On cell refers to touch panel function is embedded into method between colored filter substrate and the Polarizer.But, because the realization of these two kinds of scheme touch-controls need or need post-production to handle by external functional module, so, adopt the mobile terminal of touch screen of these two kinds of schemes not have advantage in cost of manufacture and cycle.
For this reason, proposed again in the prior art a kind of the touch controllable function module to be integrated in Thin Film Transistor (TFT) (TFT, Thin Film Transistor) the in cell on the array base palte touches (touch) solution, can improve the integrated level of liquid crystal display, additional income; So-called in cell refers to touch panel function is embedded into method in the liquid crystal pixel.The method of a kind of in of the realization cell touch that provides in the prior art, its ultimate principle is: increased the sweep trace (being the touch-control sweep trace) that is used for touch-control at tft array substrate, and the periodic scan signal is arranged; Black matrix at color film (CF) array base palte has touch induction lines, and touch induction lines is vertical mutually on arragement direction with the touch-control sweep trace; On the touch-control sweep trace on the tft array substrate, to touch control capacitance should be arranged, by touch control capacitance the touch-control sensing signal is transferred on the touch induction lines, judge the position that touch-control takes place with this.
But, in this implementation, increased special touch-control sweep trace on the tft array, taken bigger space, unfavorable for the lifting of pixel aperture ratio.In addition, touch induction lines is made of the black matrix with conducting function, because black matrix is integrated design at the CF array base palte, so, interference between the touch induction lines or short circuit all might take place, and this greatly reduces the recognition efficiency of touch-control sensing undoubtedly.
The utility model content
In view of this, fundamental purpose of the present utility model is to provide a kind of touch-control display panel and display device, in order to solve the problem that influences pixel aperture ratio that produces at the tft array substrate special touch-control sweep trace of increase in the prior art.
For achieving the above object, the technical solution of the utility model is achieved in that
The utility model provides a kind of touch-control display panel, comprising: have Thin Film Transistor (TFT) (TFT) array base palte of grid line and have the counter substrate of black matrix;
At least one described grid line is set to the touch-control sweep trace; Black matrix in described counter substrate arranges at least one touch induction lines;
Form touch control capacitance at described touch-control sweep trace and described touch induction lines antarafacial intersection.
Preferably, described touch induction lines is arranged on the black matrix of described counter substrate lower surface; The surface of described touch induction lines is provided with first conductive layer.
Preferably, in the antarafacial intersection of described tft array substrate upper surface, described touch induction lines and described touch-control sweep trace second conductive layer is set;
Described first conductive layer is relative with the position of described second conductive layer on described tft array substrate in the position on the described counter substrate.
Preferably, at least one pixel is divided into a touch area, in each touch area, forms a described touch control capacitance.
Preferably, in any one touch area, form described touch control capacitance between the grid of any one the sub-pix TFT in any one pixel and described second conductive layer.
Preferably, the arragement direction of described touch induction lines is vertical mutually with the arragement direction of described touch-control sweep trace.
Preferably, corresponding described touch induction lines of the black matrix of each on the described counter substrate.
Preferably, the touch induction lines of described counter substrate lower surface is corresponding one by one with the position of the data line of tft array substrate upper surface.
The utility model also provides a kind of display device, comprises above-mentioned touch-control display panel.
The touch-control display panel that the utility model provides and display device, at least one grid line is set to the touch-control sweep trace; Black matrix in counter substrate arranges at least one touch induction lines; Form touch control capacitance at touch-control sweep trace and touch induction lines antarafacial intersection.Provide sweep signal by grid line with the fixed cycle, when touch screen, the touch control capacitance at the stressed place of screen transfers to sweep signal on the touch induction lines.After display device receives sweep signal by touch induction lines, can put down in writing the clock situation of sweep signal according to grid line, determine the grid line of touch location correspondence, and then intersect vertically according to the antarafacial that touch induction lines and the grid line determined form and a little to determine the touch location of screen.
Above-mentioned implementation does not need to arrange special touch-control sweep trace, only the function of touch-control sweep trace can be provided, namely provide sweep signal by original grid line on the tft array substrate, so, just can avoid increasing special touch-control sweep trace and produce pixel aperture ratio is promoted disadvantageous problem at tft array substrate in the prior art.
Description of drawings
Fig. 1 is the structural representation of touch-control display panel of the present utility model;
Fig. 2 is the schematic cross-section of touch-control display panel of the present utility model;
Fig. 3 is the touch localization method synoptic diagram based on touch-control display panel of the present utility model.
Description of reference numerals: 1, tft array substrate; 2, counter substrate; 3, grid line; 4, touch induction lines; 5, touch control capacitance; 6, grid; 7, second conductive layer; 8, first conductive layer; 9, black matrix; 10, public electrode; 11, dottle pin post; 12, filling material.
Embodiment
The touch-control display panel that the utility model provides, do not need to arrange special touch-control sweep trace, the function of touch-control sweep trace only can be provided by original grid line on the tft array substrate, so, just can avoid increasing special touch-control sweep trace and produce pixel aperture ratio is promoted disadvantageous problem at tft array in the prior art.
Below by specific embodiment scheme of the present utility model is described.
Be illustrated in figure 1 as the structural representation of touch-control display panel of the present utility model, wherein, this touch-control display panel is formed by two baseplate-laminatings up and down, infrabasal plate is tft array substrate 1, counter substrate 2 preferably is color membrane substrates, in the utility model, at least one grid line on the tft array substrate 1 is set to touch-control sweep trace 3, at the black matrix of counter substrate 2 at least one touch induction lines 4 is set.So, form touch control capacitance 5 at touch-control sweep trace 3 and touch induction lines 4 antarafacial intersections.As shown in Figure 1, preferably, the arragement direction of touch induction lines 4 and touch-control sweep trace 3, be that the arragement direction of grid line is vertical mutually.
The structure of concrete touch-control display panel as shown in Figure 2, touch induction lines 4 is arranged on the black matrix 9 of counter substrate 2 lower surfaces (towards tft array substrate 1), preferably, first conductive layer 8 is set on the surface of touch induction lines 4.Between first conductive layer 8 and the touch-control touch induction lines 4 filling material 12 is arranged, preferably, first conductive layer 8 and this filling material can with public electrode 10 and public electrode 10 and black matrix 9 between filling material 11 adopt identical technology, identical materials to complete simultaneously; For example, first conductive layer 8 adopts identical materials to make with the public electrode 10 of touch-control display panel; Further, first conductive layer 8 is forming with in a manufacture craft with the public electrode 10 of touch-control display panel; Preferred first conductive layer 8 adopts transparent conductive materials with the public electrode 10 of touch-control display panel, for example tin indium oxide (ITO) etc.Similarly, filling material 11 is generally passive dottle pin post (being called for short PS), and filling material 12 is the dottle pin post with filling material 11() be preferably identical material, and in same manufacture craft, form.As can be seen from Figure 2, touch induction lines 4 and black matrix be 9 overlapping, be wire arranges, with touch-control sweep trace 3(grid 6), be that the arragement direction of grid line is that antarafacial is vertical.
In the utility model, black matrix 9 adopts insulating material to make, and for example resin material etc. so can be avoided interference or problem of short-circuit between the touch induction lines 4.
As shown in Figure 2, be provided with second conductive layer 7 in tft array substrate 1 upper surface (towards counter substrate 2), touch induction lines 4 with the antarafacial intersection of touch-control sweep trace 3; And, first conductive layer 8 is relative with second position of conductive layer 7 on tft array substrate 1 in the position on the counter substrate 2.Preferably, second conductive layer 7 adopts identical technology, identical materials to complete simultaneously with pixel electrode.
In the utility model, at least one pixel is divided into a touch area, preferably, a touch area comprises a plurality of pixels.In a touch area, only form a touch control capacitance 5, concrete: optional pixel in this touch area, further, optional sub-pix from this pixel, then as shown in Figure 2, between the grid 6 of this sub-pix and second conductive layer 7, form touch control capacitance 5.
When touch-screen is touched when pressing, change at the touch-control sweep trace 3 at the stressed place of screen and the touch control capacitance 5 between second conductive layer 7, and this capacitance variations can transfer to touch induction lines 4, according to the detection signal of touch induction lines 4, and then definite touch location.For example, the thickness of first conductive layer 8 and second conductive layer 7 can be set as required, when touch-screen is touched when pressing, first conductive layer 8 that is positioned at the stressed place of screen is contacted with second conductive layer 7, at this moment, the sweep signal that provides of touch-control sweep trace 3 just transfers to touch induction lines 4 by touch control capacitance 5, second conductive layer 7, first conductive layer 8.Preferably, an above-mentioned optional sub-pix is blue sub-pix, because touch control capacitance 5 can influence aperture ratio of pixels, selects blue pixel, and is minimum to light characteristics such as the brightness influence of display device.
In addition, why the utility model is the setting that object carries out touch control capacitance 5 with the touch control unit, mainly be because: when using the equipment of touch-screen, because touch objects such as for example points at click, during touch screen, the lifting surface area of touch-screen is bigger, if be the setting that object carries out touch control capacitance 5 with single pixel, so, lifting surface area can cover a plurality of touch control capacitances 5, and under this lifting surface area, only needs a touch control capacitance 5 for the induction of touch location, like this, will improve the cost of manufacture of equipment, cause the wasting of resources significantly, and can take more panel space, therefore, the utility model has carried out the division of touch area at lifting surface area, and preferably, a touch area comprises a plurality of pixels.
In order to determine the touch location of screen more accurately, preferably, the black matrix 9 corresponding touch induction lines 4 of on the counter substrate 2 each, be that the quantity of data line equates on quantity and the tft array substrate 1 of touch induction lines 4, and the touch induction lines 4 of counter substrate 2 lower surfaces is corresponding one by one with the position of the data line of tft array substrate 1 upper surface; Preferably, touch induction lines 4 and the position of the data line of tft array substrate 1 upper surface be arranged in parallel (namely the grid line with tft array substrate 1 is vertical), after namely guaranteeing counter substrate 2 and 1 pair of box of tft array substrate, linear position data can be overlapping on touch induction lines 4 and the tft array substrate 1, do not influence the aperture opening ratio of display panel.
The utility model also provides a kind of display device that comprises above-mentioned touch-control display panel, this display device can be display, mobile phone, TV, notebook, all-in-one etc., be for other requisite ingredient of display device and will be understood by those skilled in the art that to have, do not do at this and to give unnecessary details, should be as to restriction of the present utility model yet.
Based on above-mentioned touch-control display panel structure, the utility model also provides a kind of touch localization method, as shown in Figure 3, comprising:
Step 301 loads sweep signal to the touch-control sweep trace;
Step 302 detects the voltage signal of the sweep signal that touch induction lines is coupled out by touch control capacitance;
Step 303 loads sweep signal according to detected voltage signal and touch-control sweep trace, determines corresponding touch-control sweep trace;
Step 304, the antarafacial that forms according to the corresponding touch induction lines of detected voltage signal and the touch-control sweep trace determined a little definite touch location that intersects vertically.
The detailed process of said method is as follows:
1, to grid line, to be touch-control sweep trace 3 load sweep signal with the fixed cycle, the size of this sweep signal is to open the voltage swing of sub-pix TFT.For example can be for having the clock signal of fixed cycle.Preferably, the fixed cycle can be identical with the cycle of grid progressive-scan signal, certainly, also can be set a special cycle according to the actual requirements, as long as can guarantee not influence the normal scan of grid line and guarantee to sense in real time touch-control.
2, when touch screen, first conductive layer 8 in the screen field of load contacts with second conductive layer 7, perhaps, first conductive layer 8 in the screen field of load does not contact with second conductive layer 7, and then the sweep signal on the touch-control sweep trace 3 transfers to touch induction lines 4 by touch control capacitance 5.
3, display device detects the signal of touch induction lines 4 outputs, combination of touch control sweep trace 3 loads the clock of sweep signal, can determine corresponding touch-control sweep trace 3, and then determine touch location according to the touch induction lines 4 of this output signal with the antarafacial square crossing point that the touch-control sweep trace of determining 3 forms.
The above is preferred embodiment of the present utility model only, is not for limiting protection domain of the present utility model.
Claims (9)
1. a touch-control display panel is characterized in that, comprising: have the Thin Film Transistor (TFT) array base palte of grid line and have the counter substrate of black matrix;
At least one described grid line is set to the touch-control sweep trace; Black matrix in described counter substrate arranges at least one touch induction lines;
Form touch control capacitance at described touch-control sweep trace and described touch induction lines antarafacial intersection.
2. according to the described touch-control display panel of claim 1, it is characterized in that described touch induction lines is arranged on the black matrix of described counter substrate lower surface; The surface of described touch induction lines is provided with first conductive layer.
3. according to the described touch-control display panel of claim 2, it is characterized in that, in the antarafacial intersection of described tft array substrate upper surface, described touch induction lines and described touch-control sweep trace second conductive layer is set;
Described first conductive layer is relative with the position of described second conductive layer on described tft array substrate in the position on the described counter substrate.
4. according to claim 2 or 3 described touch-control display panels, it is characterized in that, at least one pixel is divided into a touch area, in each touch area, form a described touch control capacitance.
5. according to the described touch-control display panel of claim 4, it is characterized in that, in any one touch area, form described touch control capacitance between the grid of any one the sub-pix TFT in any one pixel and described second conductive layer.
6. according to the described touch-control display panel of claim 5, it is characterized in that the arragement direction of described touch induction lines is vertical mutually with the arragement direction of described touch-control sweep trace.
7. according to the described touch-control display panel of claim 5, it is characterized in that the corresponding described touch induction lines of the black matrix of each on the described counter substrate.
8. according to the described touch-control display panel of claim 5, it is characterized in that the touch induction lines of described counter substrate lower surface is corresponding one by one with the position of the data line of tft array substrate upper surface.
9. a display device is characterized in that, comprises as the arbitrary described touch-control display panel of claim 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320155224 CN203217539U (en) | 2013-03-29 | 2013-03-29 | Touch display panel and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320155224 CN203217539U (en) | 2013-03-29 | 2013-03-29 | Touch display panel and display device |
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| CN203217539U true CN203217539U (en) | 2013-09-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201320155224 Expired - Lifetime CN203217539U (en) | 2013-03-29 | 2013-03-29 | Touch display panel and display device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014153880A1 (en) * | 2013-03-29 | 2014-10-02 | 北京京东方光电科技有限公司 | Touch control display panel, touch locating method and display device |
| CN104090697A (en) * | 2014-06-30 | 2014-10-08 | 京东方科技集团股份有限公司 | Capacitance type embedded touch screen and touch location method and display device of capacitance type embedded touch screen |
| US20170219891A1 (en) * | 2015-08-03 | 2017-08-03 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Ips type in cell touch display panel |
| CN109085942A (en) * | 2017-06-14 | 2018-12-25 | 京东方科技集团股份有限公司 | A kind of array substrate and preparation method thereof, touch control display apparatus |
-
2013
- 2013-03-29 CN CN 201320155224 patent/CN203217539U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014153880A1 (en) * | 2013-03-29 | 2014-10-02 | 北京京东方光电科技有限公司 | Touch control display panel, touch locating method and display device |
| US9830027B2 (en) | 2013-03-29 | 2017-11-28 | Beijing Boe Optoelectronics Technology Co., Ltd. | Touch display panel, method for determining touch position and display device |
| CN104090697A (en) * | 2014-06-30 | 2014-10-08 | 京东方科技集团股份有限公司 | Capacitance type embedded touch screen and touch location method and display device of capacitance type embedded touch screen |
| CN104090697B (en) * | 2014-06-30 | 2017-02-08 | 京东方科技集团股份有限公司 | Capacitance type embedded touch screen and touch location method and display device of capacitance type embedded touch screen |
| US20170219891A1 (en) * | 2015-08-03 | 2017-08-03 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Ips type in cell touch display panel |
| CN109085942A (en) * | 2017-06-14 | 2018-12-25 | 京东方科技集团股份有限公司 | A kind of array substrate and preparation method thereof, touch control display apparatus |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: BEIJING BOE PHOTOELECTRICITY SCIENCE + TECHNOLOGY Effective date: 20150702 Owner name: JINGDONGFANG SCIENCE AND TECHNOLOGY GROUP CO., LTD Free format text: FORMER OWNER: BEIJING BOE PHOTOELECTRICITY SCIENCE + TECHNOLOGY CO., LTD. Effective date: 20150702 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150702 Address after: 100015 Jiuxianqiao Road, Beijing, No. 10, No. Patentee after: BOE TECHNOLOGY GROUP Co.,Ltd. Patentee after: BEIJING BOE OPTOELECTRONICS TECHNOLOGY Co.,Ltd. Address before: 100176 Beijing city in Western Daxing District economic and Technological Development Zone, Road No. 8 Patentee before: BEIJING BOE OPTOELECTRONICS TECHNOLOGY Co.,Ltd. |
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| CX01 | Expiry of patent term |
Granted publication date: 20130925 |
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| CX01 | Expiry of patent term |