CN202976051U - Capacitive touch display panel, display device and control device - Google Patents
Capacitive touch display panel, display device and control device Download PDFInfo
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- CN202976051U CN202976051U CN 201220712036 CN201220712036U CN202976051U CN 202976051 U CN202976051 U CN 202976051U CN 201220712036 CN201220712036 CN 201220712036 CN 201220712036 U CN201220712036 U CN 201220712036U CN 202976051 U CN202976051 U CN 202976051U
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Abstract
The utility model discloses a capacitive touch display panel, a display device and a control device. The capacitive touch display panel comprises an array substrate, a color film substrate and a liquid crystal layer which is located between the array substrate and the color film substrate, the array substrate comprises a substrate, a polarizer, a black matrix (BM) and a thin film transistor (TFT) functional unit, the array substrate is located on an emergent light side of the display panel, the color film substrate is located on an incident light side of the display panel, the TFT functional unit comprises a grid line, a data line and a TFT, the BM corresponds to the TFT, and projections of a grid electrode, a source electrode and a drain electrode in the TFT in the substrate direction fall in the BM. By means of the capacitive touch display panel, displaying and touch control functions of the display panel can be achieved without additional touch panels, the structure of the capacitive touch display panel is simplified, and the light transmissivity is improved.
Description
Technical field
The utility model relates to technical field of liquid crystal display, relates in particular to a kind of capacitance type touch control display panel, display device, control device.
Background technology
Along with the develop rapidly of display technique, touch-screen (Touch Screen Panel) spreads all in people's life gradually.At present, to form structure be generally the shortcomings such as bright dipping side at display panel arranges one deck touch panel, and then fitting to becomes the LCDs with touch function together, and cost of manufacture is higher, light transmission rate is lower, module is thicker to touch-screen.
As shown in Figure 1, LCD display panel structure of the prior art comprises from top to bottom: protective seam 10, touch panel 40, upper polaroid 201, shielding ITO70, color rete 60, upper oriented layer 401, liquid crystal material 50, lower oriented layer 402, TFT functional unit 30, substrate 301 and lower polaroid 202.
In said structure, realize that capacitance touching control is that cost is very high, and because increase attaching process, yield reduces, and the very large transmitance that affects of thickness by the glass of attaching touch-control sensing touch sensor on upper polaroid.
The utility model content
The utility model embodiment provides a kind of capacitance type touch control display panel, display device, control device, in order to realize need not demonstration and the touch controllable function that additional contact panel can solve display panel, simplify the structure of capacitance type touch control display panel, improved light transmission rate.
A kind of capacitance type touch control display panel that the utility model embodiment provides comprises array base palte, color membrane substrates and the liquid crystal layer between described array base palte and color membrane substrates; Wherein, described array base palte comprises substrate, polaroid, black matrix B M and thin film transistor (TFT) TFT functional unit, and described array base palte is positioned at the bright dipping side of described display panel, and described color membrane substrates is positioned at the light inlet side of display panel; Described TFT functional unit comprises grid line, data line and thin film transistor (TFT) TFT; Described BM is corresponding with described TFT, and the grid in described TFT, source electrode and the drain electrode projection on orientation substrate all drops in described BM.
A kind of display device that the utility model embodiment provides, this display device comprises above-mentioned display panel, and this display panel is shown and the control device of touch-control, this control device specifically is used for:
In the displaying time of every two field picture, to control and export display drive signals to all grid lines, the control display data-signal outputs to all data lines, carries out picture disply;
At the touch-control of every two field picture in the time, touch-control is driven the data line that signal exports each touch-control driver element to, and identical touch-control sensing signal is exported to the grid line of each touch-control sensing unit, wherein, each touch-control driver element comprises in advance a plurality of data lines of dividing, and each touch-control sensing unit comprises a plurality of grid lines of dividing in advance.
A kind of demonstration of described display panel and control device of touch controllable function realized that the utility model embodiment provides comprises:
Indicative control unit is used for controlling and exporting display drive signals to all grid lines in the displaying time of every two field picture, and the control display data-signal outputs to all data lines, carries out picture disply;
Touch control unit, be used for touch-control at every two field picture in the time, touch-control is driven the data line that signal exports each touch-control driver element to, and identical touch-control sensing signal is exported to the grid line of each touch-control sensing unit, wherein, each touch-control driver element comprises in advance a plurality of data lines of dividing, and each touch-control sensing unit comprises a plurality of grid lines of dividing in advance.
The utility model embodiment provides a kind of capacitance type touch control display panel, display device, control device, by array base palte is placed on liquid crystal material, color membrane substrates is placed under liquid crystal material, with the data line of the array base palte drive wire as capacitance touching control, the grid line of array base palte is as the line of induction of capacitance touching control, drive by timesharing simultaneously, namely be divided into displaying time and touch controllable function time to control respectively grid line and be connected the connection signal with data line, realize showing and touch controllable function.Need not demonstration and touch controllable function that additional contact panel can solve display panel, simplified the structure of capacitance type touch control display panel, improved light transmission rate.
Description of drawings
Fig. 1 is the structural representation of the display panel of ADS product in prior art;
The structural representation of a kind of display panel that Fig. 2 provides for the utility model embodiment;
Fig. 3 is the structural representation of TFT position in structure shown in Figure 2;
The schematic diagram of touch-control driver element and touch-control sensing unit when the display panel that Fig. 4 provides for the utility model embodiment is realized touch controllable function;
The demonstration that realizes display panel that Fig. 5 provides for the utility model embodiment and each signal timing diagram of touch controllable function;
The structural representation of the another kind of display panel that Fig. 6 provides for the utility model embodiment.
Embodiment
The utility model embodiment provides a kind of capacitance type touch control display panel, display device, control device, in order to realize need not demonstration and the touch controllable function that additional contact panel can solve display panel, simplify the structure of capacitance type touch control display panel, improved light transmission rate.
A kind of capacitance type touch control display panel that the utility model embodiment provides comprises array base palte, color membrane substrates and the liquid crystal layer between described array base palte and color membrane substrates; Wherein, described array base palte comprises substrate, polaroid, black matrix B M and thin film transistor (TFT) TFT functional unit, and described array base palte is positioned at the bright dipping side of described display panel, and described color membrane substrates is positioned at the light inlet side of display panel; Described TFT functional unit comprises grid line, data line and thin film transistor (TFT) TFT; Described BM is corresponding with described TFT, and the grid in described TFT, source electrode and the drain electrode projection on orientation substrate all drops in described BM.
Preferably, described substrate can be glass substrate.
Preferably, described BM is between described substrate and described TFT functional unit.
Perhaps, also comprise the protective seam of the bright dipping side that is positioned at described array base palte, described polaroid is positioned at the bright dipping side of described array base palte, and described BM is between described protective seam and described polaroid.
Preferably, described protective seam can be cover glass.
Perhaps, described polaroid is positioned at the bright dipping side of described array base palte, and described BM is between described polaroid and described substrate.
A kind of display device that the utility model embodiment provides, this display device comprises above-mentioned display panel, and realizes that this display panel shows and the control device of touch controllable function, wherein, this control device is used for:
In the displaying time of every two field picture, to control and export display drive signals to all grid lines, the control display data-signal outputs to all data lines, carries out picture disply;
At the touch-control of every two field picture in the time, touch-control is driven the data line that signal exports each touch-control driver element to, and identical touch-control sensing signal is exported to the grid line of each touch-control sensing unit, wherein, each touch-control driver element comprises in advance a plurality of data lines of dividing, and each touch-control sensing unit comprises a plurality of grid lines of dividing in advance.
For example, according to resolution and the size of actual display panel, be together in parallel as the sensing unit RX of touch-control with i root grid line, be together in parallel as driver element TX with the m data lines.Wherein, i is more than or equal to 1, and is less than or equal to the grid line sum, and m is more than or equal to 1, and is less than or equal to the data line sum.
Preferably, the data line of interval predetermined quantity between two described touch-control driver elements of arbitrary neighborhood in the time, does not have signal on the data line of being separated by between adjacent touch-control driver element at the touch-control of every two field picture;
There is no signal on the grid line of being separated by between the grid line of interval predetermined quantity between the described touch-control sensing of two of arbitrary neighborhoods unit, adjacent touch-control sensing unit.
For example, the data line of interval n root between adjacent driven unit TX described above; J root grid line in interval between adjacent sensing unit RX.Wherein, n and j are all more than or equal to 2 and be less than or equal to the grid line sum.
Below in conjunction with the drawings and specific embodiments, the utility model is elaborated.
Referring to Fig. 2, be a kind of display panel that the utility model embodiment provides, this display panel comprises under upper:
Protective seam 10, upper polaroid 201, TFT functional unit 30, black matrix (BM) 80, liquid crystal material 50, color membrane substrates 60, lower polaroid 202;
Referring to Fig. 3 and in conjunction with Fig. 2, array base palte comprises, substrate 301 and TFT functional unit 30, this TFT functional unit 30 comprise grid 302, source-drain electrode 303, ohmic contact layer (N+A-SI) 304, amorphous silicon (A-SI) 305, common electrode layer (Vcom ITO) 306, pixel electrode 307, PVX308 and SiNx309; Wherein, N+A-SI304 and A-SI305 consist of active layer, and the insulation course (SiNx) 309 of grid 302, source-drain electrode 303, ohmic contact layer (N+A-SI) 304, amorphous silicon (A-SI) 305, insulation course (PVX) 308 and grid line layer consists of TFT.
As shown in Figures 2 and 3, TFT functional unit 30 is positioned at the top of liquid crystal material 50, and color membrane substrates 60 is positioned at the below of liquid crystal material 50; Black matrix 80 is between substrate 301 and TFT functional unit, thereby grid 302, the projection of source-drain electrode 303 on substrate 301 directions all drop in black matrix 80.
The utility model embodiment removes the black matrix of color film side by with the location swap of array base palte and color membrane substrates, can be all through CF glass thereby backlight, and black matrix is produced on array base palte, prevented the metal reflective of TFT functional unit.
In addition, the common electrode layer Vcom ITO306 on PVX, as shown in Figure 3, it is the monoblock electrode in the TFT zone, can cover TFT by whole layer, it is the pectination arrangement in pixel region; For whole display panel, public electrode ITO layer can the shadow data line to the electric field of pixel electrode, and grid line is to the electric field of pixel electrode, as the data wire metal layer of TX and as the grid line layer of RX between this public electrode ITO layer and substrate, therefore make TX can by the shielding of this public electrode ITO layer, not guarantee the normal operation of touch controllable function to the electric field of RX.
The above-mentioned display panel that the utility model embodiment provides not only can be realized Presentation Function, can also realize touch controllable function.The display device that the utility model embodiment provides comprises above-mentioned display panel, also comprises control device, and this control device is used for:
In the displaying time of every two field picture, to control and export display drive signals to all grid lines, the control display data-signal outputs to all data lines, carries out picture disply;
At the touch-control of every two field picture in the time, touch-control is driven the data line that signal exports each touch-control driver element to, and identical touch-control sensing signal is exported to the grid line of each touch-control sensing unit, wherein, each touch-control driver element comprises in advance a plurality of data lines of dividing, and each touch-control sensing unit comprises a plurality of grid lines of dividing in advance.
Particularly, in the time, schematic diagram shown in Figure 4 is together in parallel as touch-control sensing unit R X1, RX2 etc. with i root grid line, is together in parallel as touch-control driver element TX1, TX2 etc. with the m data lines at touch-control.The grid line of the some of being separated by between the data line by interval some between adjacent touch-control driver element and adjacent touch-control sensing unit, can make the Electric Field Distribution homogeneous of touch-control driver element and touch-control sensing unit, for example can be between adjacent touch-control driver element 3, interval data line, 4 grid lines of being separated by between adjacent touch-control sensing unit; Perhaps 5, interval data line between adjacent touch-control driver element, 3 grid lines of being separated by between adjacent touch-control sensing unit, restriction is not done in the utility model contrast, and those skilled in the art can design accordingly according to the actual design needs.
Below in conjunction with accompanying drawing, the above-mentioned display panel that the utility model embodiment provides is realized that the method for demonstration and touch controllable function describes.
A kind of demonstration of display panel and control method of touch controllable function of realizing that the utility model embodiment provides comprises:
As shown in Figure 4, in the displaying time of every two field picture, control and export display drive signals to all grid lines, the control display data-signal outputs to all data lines, carries out picture disply;
At the touch-control of every two field picture in the time, touch-control is driven the data line that signal exports each touch-control driver element to, and identical touch-control sensing signal is exported to the grid line of each touch-control sensing unit, wherein, each touch-control driver element comprises in advance a plurality of data lines of dividing, and each touch-control sensing unit comprises a plurality of grid lines of dividing in advance.
Preferably, the data line of interval predetermined quantity between two described touch-control driver elements of arbitrary neighborhood in the time, does not have signal on the data line of being separated by between adjacent touch-control driver element at the touch-control of every two field picture;
There is no signal on the grid line of being separated by between the grid line of interval predetermined quantity between the described touch-control sensing of two of arbitrary neighborhoods unit, adjacent touch-control sensing unit.
Particularly, each signal timing diagram shown in Figure 5, wherein, STV is the frame start signal, and CPV is for opening control signal, and Gate is the start signal of grid line, and Data is data-signal, TX is the driving signal that the touch-control driver element connects;
The time of every two field picture is divided into and shows display time and touch-control touch time.The STV unblanking of each frame, displaying time begins; In displaying time, grid line and data line are inputted respectively corresponding grid start signal and data-signal, thereby complete the demonstration of whole frame picture;
After picture disply finished, all grid lines were closed, and particularly, grid line is lined by line scan, and has scanned delegation and has namely closed delegation, and all data lines all do not have output signal, as the position, separatrix between Display in figure and Touch.
Then enter the touch-control time of every two field picture, schematic diagram in conjunction with Fig. 4, each touch-control driver element that is comprised of many data lines is transfused to different touch-controls and drives signal, data line in same touch-control driver element connects identical driving signal, thereby TX1, TX2, TX3 etc. carry out driven sweep successively; And each is comprised of many grid lines touch-control sensing unit is transfused to corresponding touch-control sensing signal, and the grid line in same touch-control sensing unit connects identical touch-control sensing signal, thereby touch-control is responded to external world.
The demonstration of each two field picture includes displaying time and touch-control time, and namely when next frame image signal STV arrived, the time reentered and shows the Display time portion.Thereby, by the method that this timesharing drives, realized Presentation Function and the touch controllable function of display panel.
A kind of demonstration of display panel and control device of touch controllable function realized that the utility model embodiment provides comprises:
Indicative control unit is used for controlling and exporting display drive signals to all grid lines in the displaying time of every two field picture, and the control display data-signal outputs to all data lines, carries out picture disply;
This indicative control unit comprises the Source Driver IC shown in Fig. 4 and Gate Driver IC.
Touch control unit, be used for touch-control at every two field picture in the time, touch-control is driven the data line that signal exports each touch-control driver element to, and identical touch-control sensing signal is exported to the grid line of each touch-control sensing unit, wherein, each touch-control driver element comprises in advance a plurality of data lines of dividing, and each touch-control sensing unit comprises a plurality of grid lines of dividing in advance.
This touch control unit, i.e. Touch IC. shown in Fig. 4
Preferably, the data line of interval predetermined quantity between two described touch-control driver elements of arbitrary neighborhood in the time, does not have signal on the data line of being separated by between adjacent touch-control driver element at the touch-control of every two field picture;
There is no signal on the grid line of being separated by between the grid line of interval predetermined quantity between the described touch-control sensing of two of arbitrary neighborhoods unit, adjacent touch-control sensing unit.
Need to prove; the display panel that the utility model provides; its structure can also adopt following distortion; structure shown in Figure 6; compare structure shown in Figure 2; the position of black matrix changes to some extent in Fig. 6, and wherein black matrix 80 between cover glass 10 and upper polaroid 201, can play the light of the extraneous incident of metallic reflection that prevents on the TFT substrate equally.
In addition, black matrix is also passable between upper polaroid 201 and substrate 301.
And, the technical scheme that the utility model embodiment provides is equally applicable to the LCD of TN pattern, when being applied to the LCD of TN pattern, do not comprise common electrode layer in array base palte described in the utility model embodiment, other parts and the utility model are basic identical, control principle is also identical, does not do at this and gives unnecessary details.
In sum, the utility model embodiment provides a kind of capacitance type touch control display panel, display device, control device, by array base palte is placed on liquid crystal material, color membrane substrates is placed under liquid crystal material, with the data line of the array base palte drive wire as capacitance touching control, the grid line of array base palte is as the line of induction of capacitance touching control, drive by timesharing simultaneously, namely being divided into displaying time and touch controllable function time controls respectively grid line and is connected the connection signal with data line, realizes showing and touch controllable function.Need not demonstration and touch controllable function that additional contact panel can solve display panel, simplified the structure of capacitance type touch control display panel, improved light transmission rate.
Obviously, those skilled in the art can carry out various changes and modification and not break away from spirit and scope of the present utility model the utility model.Like this, if within of the present utility model these are revised and modification belongs to the scope of the utility model claim and equivalent technologies thereof, the utility model also is intended to comprise these changes and modification interior.
Claims (8)
1. a capacitance type touch control display panel, comprise array base palte, color membrane substrates and the liquid crystal layer between described array base palte and color membrane substrates; Wherein, described array base palte comprises substrate, polaroid, black matrix B M and thin film transistor (TFT) TFT functional unit, it is characterized in that,
Described array base palte is positioned at the bright dipping side of described display panel, and described color membrane substrates is positioned at the light inlet side of display panel;
Described TFT functional unit comprises grid line, data line and thin film transistor (TFT) TFT;
Described BM is corresponding with described TFT, and the grid in described TFT, source electrode and the drain electrode projection on orientation substrate all drops in described BM.
2. display panel according to claim 1, is characterized in that, described BM is between described substrate and described TFT functional unit.
3. display panel according to claim 1, is characterized in that, also comprises the protective seam of the bright dipping side that is positioned at described array base palte, and described polaroid is positioned at the bright dipping side of described array base palte, and described BM is between described protective seam and described polaroid.
4. display panel according to claim 1, is characterized in that, described polaroid is positioned at the bright dipping side of described array base palte, and described BM is between described polaroid and described substrate.
5. a display device, is characterized in that, this display device comprises the described display panel of claim as arbitrary in claim 1 ~ 4, and this display panel is shown and the control device of touch-control, and this control device specifically is used for:
In the displaying time of every two field picture, to control and export display drive signals to all grid lines, the control display data-signal outputs to all data lines, carries out picture disply;
At the touch-control of every two field picture in the time, touch-control is driven the data line that signal exports each touch-control driver element to, and identical touch-control sensing signal is exported to the grid line of each touch-control sensing unit, wherein, each touch-control driver element comprises in advance a plurality of data lines of dividing, and each touch-control sensing unit comprises a plurality of grid lines of dividing in advance.
6. display device according to claim 5, it is characterized in that, the data line of interval predetermined quantity between two described touch-control driver elements of arbitrary neighborhood in the time, does not have signal on the data line of being separated by between adjacent touch-control driver element at the touch-control of every two field picture;
There is no signal on the grid line of being separated by between the grid line of interval predetermined quantity between the described touch-control sensing of two of arbitrary neighborhoods unit, adjacent touch-control sensing unit.
7. one kind shows and the control device of touch-control the described display panel of claim 1, and it is characterized in that, this control device comprises:
Indicative control unit is used for controlling and exporting display drive signals to all grid lines in the displaying time of every two field picture, and the control display data-signal outputs to all data lines, carries out picture disply;
Touch control unit, be used for touch-control at every two field picture in the time, touch-control is driven the data line that signal exports each touch-control driver element to, and identical touch-control sensing signal is exported to the grid line of each touch-control sensing unit, wherein, each touch-control driver element comprises in advance a plurality of data lines of dividing, and each touch-control sensing unit comprises a plurality of grid lines of dividing in advance.
8. control device according to claim 7, it is characterized in that, the data line of interval predetermined quantity between two described touch-control driver elements of arbitrary neighborhood in the time, does not have signal on the data line of being separated by between adjacent touch-control driver element at the touch-control of every two field picture;
There is no signal on the grid line of being separated by between the grid line of interval predetermined quantity between the described touch-control sensing of two of arbitrary neighborhoods unit, adjacent touch-control sensing unit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201220712036 CN202976051U (en) | 2012-12-20 | 2012-12-20 | Capacitive touch display panel, display device and control device |
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| CN 201220712036 CN202976051U (en) | 2012-12-20 | 2012-12-20 | Capacitive touch display panel, display device and control device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103034386A (en) * | 2012-12-20 | 2013-04-10 | 北京京东方光电科技有限公司 | Capacitive touch display panel, display device, control device and control method |
| WO2015074421A1 (en) * | 2013-11-20 | 2015-05-28 | 京东方科技集团股份有限公司 | Touchscreen and driving method thereof and display device |
| WO2015085618A1 (en) * | 2013-12-13 | 2015-06-18 | 深圳市华星光电技术有限公司 | Thin film transistor array substrate and manufacturing method thereof and liquid crystal display device |
-
2012
- 2012-12-20 CN CN 201220712036 patent/CN202976051U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103034386A (en) * | 2012-12-20 | 2013-04-10 | 北京京东方光电科技有限公司 | Capacitive touch display panel, display device, control device and control method |
| CN103034386B (en) * | 2012-12-20 | 2015-11-11 | 北京京东方光电科技有限公司 | Capacitance type touch control display panel, display device, control device and method |
| US9703427B2 (en) | 2012-12-20 | 2017-07-11 | Beijing Boe Optoelectronics Technology Co., Ltd. | Capacitive touch display panel, display device and control device |
| WO2015074421A1 (en) * | 2013-11-20 | 2015-05-28 | 京东方科技集团股份有限公司 | Touchscreen and driving method thereof and display device |
| US9671908B2 (en) | 2013-11-20 | 2017-06-06 | Boe Technology Group Co., Ltd. | Touch panel for multi-touch function of an in cell capacitive touch panel in a twisted nematic mode, driving method thereof, and display device thereof |
| WO2015085618A1 (en) * | 2013-12-13 | 2015-06-18 | 深圳市华星光电技术有限公司 | Thin film transistor array substrate and manufacturing method thereof and liquid crystal display device |
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Owner name: JINGDONGFANG SCIENCE AND TECHNOLOGY GROUP CO., LTD Free format text: FORMER OWNER: BEIJING BOE PHOTOELECTRICITY SCIENCE + TECHNOLOGY CO., LTD. Effective date: 20150707 Owner name: BEIJING BOE PHOTOELECTRICITY SCIENCE + TECHNOLOGY Effective date: 20150707 |
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Effective date of registration: 20150707 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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Granted publication date: 20130605 |