CN102375582A - Touch type liquid crystal display panel - Google Patents
Touch type liquid crystal display panel Download PDFInfo
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- CN102375582A CN102375582A CN2010102510867A CN201010251086A CN102375582A CN 102375582 A CN102375582 A CN 102375582A CN 2010102510867 A CN2010102510867 A CN 2010102510867A CN 201010251086 A CN201010251086 A CN 201010251086A CN 102375582 A CN102375582 A CN 102375582A
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Abstract
The invention discloses a touch type liquid crystal display panel. The touch type liquid crystal display panel comprises a plurality of display units and a plurality of touch units, wherein the touch unit is provided for a user to perform a touch action. The touch type liquid crystal display panel comprises a glass substrate and an integrated chip, wherein the integrated chip comprises a display driving circuit and a touch detection unit; the display driving circuit drives the display units according to a display data; the touch detection unit is used for detecting the touch action of the user, and outputs a touch signal according to the touch action of the user. By using the touch type liquid crystal display panel, the communication interface can be simplified and the production cost is reduced.
Description
Technical field
The present invention relates to a kind of touch-control liquid crystal display panel.
Background technology
In the information age now, human dependence for electronic product grows with each passing day.Notebook computer, mobile phone, personal digital aid (PDA) (Personal Digital Assistant, PDA), electronic product such as digital walkman all become indispensable application tool in modern's life and the work.The general electronic installation of selling on the market in order to let user's handled easily, all can design a personal-machine interface, user's input instruction to be provided and to make electronic installation carry out each item function.For reach carry more convenient, volume is more lightly changed and operate more humane purpose; In recent years; Touch-control liquid crystal display panel has been widely used to electronic product miscellaneous; As: GPS (GPS), personal digital assistant, mobile phone (cellular phone) and palmtop computer (Hand-held PC) etc., to replace traditional input media (as: keyboard and mouse etc.).Wherein, Presentation Function and touch controllable function combine can make the design of man-machine interface have higher convenience.
Generally speaking, display panels and contact panel in traditional touch-control liquid crystal display panel separate all alone, and have control chip separately to be responsible for its function specially respectively.Therefore (Micro Controller Unit MCU) need have two group interfaces to the micro-control unit of rear end, to communicate with display panels and contact panel simultaneously respectively.To make touch-control liquid crystal display panel in design, need more wiring thus, and communication protocol and handling procedure become comparatively complicated, production cost is also higher.
Summary of the invention
To the problem that exists in the prior art, the object of the present invention is to provide a kind of touch-control liquid crystal display panel, can simplify communication interface and reduce production costs.
The present invention proposes a kind of touch-control liquid crystal display panel, and it has a plurality of display units and a plurality of touch control unit, and touch-control liquid crystal display panel comprises a glass substrate and an integrated chip.Wherein integrated chip comprises a display driver circuit and a touch control detection unit.Display driver circuit couples above-mentioned display unit, receives a video data and a setting data, and drives above-mentioned display unit according to setting data and video data.The touch control detection unit couples above-mentioned touch control unit, and the touch-control that detects the user according to setting data moves, and exports touching signals according to user's touch-control action.
In one embodiment of this invention; Touch-control liquid crystal display panel also comprises a micro-control unit, and it couples this integrated chip; Transmit video data and setting data to integrated chip, and receive touching signals to judge the position that display panels is touched according to touching signals.
In one embodiment of this invention; Above-mentioned integrated chip also comprises a communication interface; It couples display driver circuit, touch control detection unit and micro-control unit; In order to transmitting this setting data to this display driver circuit or this touch control detection unit, and control touch control detection unit output touching signals to be being sent to micro-control unit with touching signals, and video data is sent to display driver circuit.
In one embodiment of this invention, above-mentioned communication interface is the internal integrated circuit transmission interface.
In one embodiment of this invention, above-mentioned communication interface is a Serial Peripheral Interface (SPI).
In one embodiment of this invention, above-mentioned integrated chip directly is disposed on the glass substrate for the mode that engages with chip-glass.
In one embodiment of this invention, above-mentioned display driver circuit and touch control detection unit are for being connected to above-mentioned display unit and above-mentioned touch control unit respectively through tin indium oxide.
Beneficial effect of the present invention is; Based on above-mentioned, the present invention passes through in the touch-control liquid crystal display panel, and the integrated chip between display panels and contact panel is integrated into an integrated chip; To simplify the mode of production and the communication interface of touch-control liquid crystal display panel, reduce production costs.
For letting the above-mentioned feature and advantage of the present invention can be more obviously understandable, hereinafter is special lifts embodiment, and cooperates appended accompanying drawing to elaborate as follows.
Description of drawings
Fig. 1 is the synoptic diagram of the touch-control liquid crystal display panel of one embodiment of the invention.
Fig. 2 is the synoptic diagram of the touch-control liquid crystal display panel of another embodiment of the present invention.
Wherein, description of reference numerals is following:
100,200: touch-control liquid crystal display panel
102: glass substrate
104: integrated chip
106: micro-control unit
202: display driver circuit
204: the touch control detection unit
206: communication interface
P1: display unit
T1: touch control unit
D1: video data
S1: setting data
ST: touching signals
Embodiment
Fig. 1 is the synoptic diagram of the touch-control liquid crystal display panel of one embodiment of the invention.Please with reference to Fig. 1, touch-control liquid crystal display panel 100 has at least one display unit P1 (being a plurality of display unit P1 in the present embodiment) and a plurality of touch control unit T1.Wherein, Display unit P1 is for coming display frame in order to foundation one video data; Touch control unit T1 then can provide the user to carry out touch-control action; For example when touch-control liquid crystal display panel 100 is the panel of electric resistance touch-control or capacitance touching control, can accomplish the touch-control action through the mode of pushing or touching.Touch-control liquid crystal display panel 100 comprises glass substrate 102, integrated chip 104 and micro-control unit 106.Wherein (Chip On Glass, mode COG) directly is disposed on the glass substrate 102 in the display panels 100 integrated chip 104 with the chip-glass joint.
Setting data S1 and video data D1 that integrated chip 104 receives from micro-control unit 106, and judge that setting data S1 wherein is a touch-control setting data or display setting data.When judging setting data S1 and be the display setting data, integrated chip 104 just carries out the display action of video data D1 according to the setting of display setting data.For instance; The display unit P1 that supposes present embodiment is a seven-segment display; Above-mentioned video data D1 can be display unit P1 numeral to display, and brightness when setting data S1 then can set display unit P1 display digit or control display unit are with the mode display digit of flicker.The height of displays temperature when touch-control liquid crystal display panel 100 is applied to measuring temp for example; Can set the temperature that measures object when target rises or descends when exceeding critical temperature; Make the brightness of the numeral of demonstration improve and begin flicker, to attract user's attention.
It should be noted that display unit P1 in practical application not with present embodiment be that seven-segment display exceeds, display unit P1 also can be the pixel cell in the display panels that is generally used in the computer or television screen in other embodiments.In addition, the video data D1 of present embodiment also is not limited to and must be transmitted by micro-control unit 106, and in other embodiments, video data D1 also might be provided by other device, for example storer.
When setting data S1 is used for setting touch unit T1 when detecting the touch-control setting data of action, integrated chip 104 just detects the state of touch control unit T1 according to the setting of this setting data.For instance, can scan touch control unit T1 according to the sweep frequency that the touch-control setting data is set, to detect the state of touch control unit T1.Wherein when touch-control liquid crystal display panel 100 is electric resistance touch-control panel; Can detect user's touch-control action according to the size variation of the last resistance value of touch control unit T1; And when touch-control liquid crystal display panel 100 is capacitance type touch-control panel, also can detect user's touch-control action according to the size variation of the last capacitance of touch control unit T1.After integrated chip 104 detects user's touch-control action; Integrated chip 104 just moves according to detected user's touch-control and exports a touching signals ST to micro-control unit 106, so that micro-control unit 106 is judged the position that touch-control liquid crystal display panel 100 is touched according to touching signals ST.
Through display panels in the tradition and contact panel control chip separately are integrated into an integrated chip 104; Make it simultaneously according to the display unit P1 on video data D1 and the display setting data-driven display panels 100; And detect user's touch-control action according to the touch-control setting data, with according to touch-control action output one touching signals ST.So not only can the design difficulty that lowers micro-control unit 106 to integrated chip 104 be shared in the work that micro-control unit in the tradition 106 is responsible for; Also can reduce the required wiring number of micro-control unit 106; Simplify the communication protocol and the production procedure of touch-control liquid crystal display panel 100, and then reduce the production cost of touch-control liquid crystal display panel 100.
In detail, the integrated chip 104 of Fig. 1 embodiment can be as shown in Figure 2, and Fig. 2 is the synoptic diagram of the touch-control liquid crystal display panel of another embodiment of the present invention.The touch-control liquid crystal display panel 200 of present embodiment is that with the difference of the touch-control liquid crystal display panel 100 of Fig. 1 embodiment integrated chip 104 comprises display driver circuit 202, touch control detection unit 204 and communication interface 206.Wherein communication interface 206; Can for example be internal integrated circuit transmission (Inter-Integrated Circuit; I2C) interface, Serial Peripheral Interface (SPI) (Serial Peripheral Interface; SPI) or other serial or parallel communication interface, it couples display driver circuit 202 and touch control detection unit 204.Display driver circuit 202 and touch control detection unit 204 are for to be connected to above-mentioned display unit P1 and above-mentioned touch control unit T1 respectively through tin indium oxide in addition.
Wherein, above-mentioned communication interface 206 is in order to receiving setting data S1 and the video data D1 from micro-control unit 106, and setting data S1 is sent to touch control detection unit 204 or display driver circuit 202.At this, communication interface 206 transmit setting data S1 to touch control detection unit 204 or the foundation of display driver circuit 202 be setting data S1 the setting target that will carry out.For instance, among the setting data S1, can include one or more specific bits and indicate this setting data S1 and be the touch-control or the setting data of Presentation Function.Communication interface 206 and can judge that setting data S1 is touch-control setting data or display setting data through above-mentioned specific bit when received setting data S1 is decoded.
When setting data S1 is the touch-control setting data; Communication interface 206 is sent to touch control detection unit 204 with decoded touch-control setting data; Detect user's touch-control action according to the touch-control setting data with control touch control detection unit 204; 204 of touch control detection unit after the touch-control action that detects the user, according to this touch-control action output touching signals ST to communication interface 206.Afterwards, communication interface 206 just then is sent to micro-control unit 106 with touching signals ST, lets micro-control unit 106 judge the position that touch-control liquid crystal display panel 100 is touched according to touching signals ST.
In addition; When setting data S1 is the display setting data; Communication interface 206 is sent to display driver circuit 202 with video data D1 and decoded display setting data, so that display driver circuit 202 can be according to decoded video data D1 and display setting data-driven display unit P1.So share micro-control unit 106 in the tradition communicates transmission simultaneously with touch control detection unit 204 and display driver circuit 202 work through integrated chip 104; Can reduce the wiring on the micro-control unit 106 significantly; Reduce the complexity of micro-control unit 106 designs; The communication protocol and the production procedure of touch-control liquid crystal display panel 100 are oversimplified, and then reduced the production cost of touch-control liquid crystal display panel 100.
In sum; The present invention passes through in traditional touch-control liquid crystal display panel; Control chip between display panels and contact panel is integrated into an integrated chip; Utilizing integrated chip to drive the display unit of touch-control liquid crystal display panel, and detect user's touch-control action simultaneously according to setting data and video data.So just can reduce the wiring on the micro-control unit, reduce the design complexities of micro control unit circuit, the communication protocol of touch-control liquid crystal display panel and production procedure oversimplified, and then reduced the production cost of touch-control liquid crystal display panel.
Though the present invention discloses as above with embodiment; Right its is not in order to qualification the present invention, and any affiliated person skilled is not breaking away from the spirit and scope of the present invention; When can doing a little change and retouching, so protection scope of the present invention is when looking being as the criterion that claim defines.
Claims (7)
1. a touch-control liquid crystal display panel has at least one display unit and a plurality of touch control unit, and wherein said a plurality of touch control units carry out touch-control action in order to the user to be provided, and this touch-control liquid crystal display panel comprises:
One glass substrate; And
One integrated chip comprises:
One display driver circuit couples this display unit, receives a video data and a setting data, drives this display unit according to this setting data and this video data;
One touch control detection unit couples said a plurality of touch control unit, and this touch-control that detects the user according to this setting data moves, and according to this touch-control action output one touching signals.
2. touch-control liquid crystal display panel as claimed in claim 1 is characterized in that, this touch-control liquid crystal display panel also comprises:
One micro-control unit couples this integrated chip, and this micro-control unit transmits this video data and this setting data to this integrated chip, and receives this touching signals to judge the position that this touch-control liquid crystal display panel is touched according to this touching signals.
3. touch-control liquid crystal display panel as claimed in claim 2 is characterized in that, this integrated chip also comprises:
One communication interface; Couple this display driver circuit, this touch control detection unit and this micro-control unit; In order to transmit this setting data to this display driver circuit or this touch control detection unit; And control this touching signals of this touch control detection unit output so that this touching signals is sent to this micro-control unit, and this video data is sent to this display driver circuit.
4. touch-control liquid crystal display panel as claimed in claim 3 is characterized in that, this communication interface is the internal integrated circuit transmission interface.
5. touch-control liquid crystal display panel as claimed in claim 3 is characterized in that, this communication interface is a Serial Peripheral Interface (SPI).
6. touch-control liquid crystal display panel as claimed in claim 1 is characterized in that, this integrated chip directly is disposed on this glass substrate with the mode that chip-glass engages.
7. touch-control liquid crystal display panel as claimed in claim 1 is characterized in that, this display driver circuit and this touch control detection unit are connected to said at least one display unit and said a plurality of touch control unit respectively through tin indium oxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102510867A CN102375582A (en) | 2010-08-09 | 2010-08-09 | Touch type liquid crystal display panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102510867A CN102375582A (en) | 2010-08-09 | 2010-08-09 | Touch type liquid crystal display panel |
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| CN102375582A true CN102375582A (en) | 2012-03-14 |
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| CN2010102510867A Pending CN102375582A (en) | 2010-08-09 | 2010-08-09 | Touch type liquid crystal display panel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103970341A (en) * | 2013-02-01 | 2014-08-06 | 丽智科技股份有限公司 | Touch display driving circuit capable of reflecting CPU command |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1818842A (en) * | 2001-08-22 | 2006-08-16 | 夏普株式会社 | Touch sensor, display with touch sensor, and method for generating position data |
| CN101387772A (en) * | 2007-09-14 | 2009-03-18 | 群康科技(深圳)有限公司 | Touch control display panel, display and mobile phone |
| CN101501618A (en) * | 2006-06-09 | 2009-08-05 | 苹果公司 | Touch screen liquid crystal display |
-
2010
- 2010-08-09 CN CN2010102510867A patent/CN102375582A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1818842A (en) * | 2001-08-22 | 2006-08-16 | 夏普株式会社 | Touch sensor, display with touch sensor, and method for generating position data |
| CN101501618A (en) * | 2006-06-09 | 2009-08-05 | 苹果公司 | Touch screen liquid crystal display |
| CN101387772A (en) * | 2007-09-14 | 2009-03-18 | 群康科技(深圳)有限公司 | Touch control display panel, display and mobile phone |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103970341A (en) * | 2013-02-01 | 2014-08-06 | 丽智科技股份有限公司 | Touch display driving circuit capable of reflecting CPU command |
| CN103970341B (en) * | 2013-02-01 | 2017-03-01 | 丽智科技股份有限公司 | Touch display driving circuit capable of reflecting CPU command |
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Application publication date: 20120314 |