CN102375256A - Touch liquid crystal display panel - Google Patents
Touch liquid crystal display panel Download PDFInfo
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- CN102375256A CN102375256A CN2010102510778A CN201010251077A CN102375256A CN 102375256 A CN102375256 A CN 102375256A CN 2010102510778 A CN2010102510778 A CN 2010102510778A CN 201010251077 A CN201010251077 A CN 201010251077A CN 102375256 A CN102375256 A CN 102375256A
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 40
- 238000004891 communication Methods 0.000 claims abstract description 33
- 230000009471 action Effects 0.000 claims abstract description 18
- 238000001514 detection method Methods 0.000 claims description 22
- 230000005540 biological transmission Effects 0.000 claims description 8
- 239000011521 glass Substances 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 claims description 4
- MRNHPUHPBOKKQT-UHFFFAOYSA-N indium;tin;hydrate Chemical compound O.[In].[Sn] MRNHPUHPBOKKQT-UHFFFAOYSA-N 0.000 claims description 3
- 238000012546 transfer Methods 0.000 claims description 3
- 230000008054 signal transmission Effects 0.000 abstract 1
- 230000006870 function Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
The invention discloses a touch liquid crystal display panel which comprises a communication control interface, an integrated chip and a micro control unit. The integrated chip drives at least one display unit according to display data, detects touch control action of a user and outputs a touch control signal according to the touch control action. The micro control unit transmits a state setting mark and setting data to the integrated chip. In addition, the communication control interface is used for transmitting display data, touch signals, state setting marks and setting data between the integrated chip and the micro control unit through a signal transmission protocol. The integrated chip judges the setting data to be touch setting data or display setting data according to the state setting mark, and detects touch action and drives the display unit according to the touch setting data and the display setting data respectively. The invention can simplify the communication interface and reduce the production cost.
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 of all kinds; 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 chip for driving 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; Have at least one display unit and a plurality of touch control unit; Wherein said a plurality of touch control unit carries out touch-control action in order to the user to be provided, and touch-control liquid crystal display panel comprises an integrated chip, a Communications Control Interface and a micro-control unit.Wherein integrated chip receives a video data simultaneously and drives above-mentioned display unit and detection user's touch-control action and export a touching signals according to the touch-control action according to video data.Micro-control unit couples integrated chip, and transmits a setting state mark and a setting data to integrated chip.In addition, the Communications Control Interface bridge joint is between integrated chip and micro-control unit, in order between integrated chip and micro-control unit, to pass through signal transfer protocol transmitting and displaying data, touching signals, setting state mark and setting data.Wherein integrated chip judges that according to the setting state mark setting data is a touch-control setting data or display setting data, and integrated chip also moves and the driving display unit to detect touch-control according to touch-control setting data and display setting data respectively.
In one embodiment of this invention, above-mentioned integrated chip comprises a display driver circuit, a touch control detection unit and a control interface.Wherein display driver circuit receives video data and display setting data, and drives above-mentioned display unit according to display setting data and video data.The touch control detection unit moves according to the touch-control that the touch-control setting data detects the user, and exports touching signals to Communications Control Interface according to the touch-control action.Control interface couples display driver circuit, touch control detection unit and Communications Control Interface; Its decoding touch-control setting data also is sent to the touch control detection unit with decoded touch-control setting data; Export touching signals with control touch control detection unit, and touching signals is sent to micro-control unit through Communications Control Interface.Control interface decoding and displaying data and decoded video data is sent to display driver circuit also in addition are so that display driver circuit drives above-mentioned display unit according to video data.
In one embodiment of this invention, above-mentioned display driver circuit and touch control detection unit are for to be connected to above-mentioned display unit and touch control unit respectively through tin indium oxide.
In one embodiment of this invention, above-mentioned Communications Control Interface and integrated chip directly are disposed on the display panels for the mode that engages with chip-glass.
In one embodiment of this invention, above-mentioned Communications Control Interface is the internal integrated circuit transmission interface.
In one embodiment of this invention, above-mentioned Communications Control Interface is a Serial Peripheral Interface (SPI).
Beneficial effect of the present invention is; Based on above-mentioned; The present invention passes through in the touch-control liquid crystal display panel; Transmission interface between micro-control unit and display panels and contact panel is integrated into a Communications Control Interface, to reduce the complexity of making touch-control liquid crystal display panel, reduces 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: Communications Control Interface
108: micro-control unit
202: display driver circuit
204: the touch control detection unit
206: control interface
P1: display unit
T1: touch control unit
DI: video data
ST: touching signals
S1: setting data
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.In the present embodiment, display unit P1 is a seven-segment display, and not as limit, display unit P1 also can be the pixel cell in the general computer or television screen display panel in other embodiments in the right practical application.In addition, touch control unit T1 can provide the user to carry out touch-control action, the action of for example pushing or touching.Touch-control liquid crystal display panel 100 comprises glass substrate 102, integrated chip 104, Communications Control Interface 106 and micro-control unit 108.Wherein Communications Control Interface 106 bridge joints are between integrated chip 104 and micro-control unit 108; Communications Control Interface 106; Can for example be internal integrated circuit transmission (Inter-Integrated Circuit, I2C) interface or Serial Peripheral Interface (SPI) (Serial Peripheral Interface, SPI); And Communications Control Interface 106 engages with chip-glass with integrated chip 104, and (Chip On Glass, mode COG) directly is disposed on the glass substrate 102 in the display panels 100.
Wherein, integrated chip 104 is in order to according to the display unit P1 on the video data DI driving liquid crystal panel 100, and detects user's touch-control action simultaneously, with according to touch-control action output one touching signals ST.Micro-control unit 108 transmits a video data DI, a setting state mark and a setting data S 1 to integrated chip 104, makes integrated chip 104 judge that setting data S1 is a touch-control setting data or display setting data according to the setting state mark.Wherein when setting data S1 is the touch-control setting data; Integrated chip 104 detects user's touch-control action according to setting data S 1; And according to user's touch-control action output one touching signals ST to micro-control unit 108, so that micro-control unit 108 is judged the position that touch-control liquid crystal display panel 100 is touched according to touching signals ST.And when setting data S1 was the display setting data, integrated chip 104 drove the display unit P1 on the touch-control liquid crystal display panel 100 according to setting data S1 and video data DI.Wherein video data DI, setting data S1, touching signals ST and setting state are labeled as through Communications Control Interface 106 and transmit with a signal transfer protocol.It should be noted that in the present embodiment video data DI is by 108 transmission of micro-control unit; So not as limit, in other embodiments, video data DI also might be provided by other device; For example, deposit the graphic memory of display picture data.
Through display panels in the tradition and contact panel transmission interface separately are integrated into a Communications Control Interface 106; Not only can reduce the required wiring number of micro-control unit 108; Also can simplify the communication protocol and the handling procedure of touch-control liquid crystal display panel 100, reduce touch-control liquid crystal display panel 100 production costs.
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 control interface 206.Wherein control interface 206 couples display driver circuit 202 and touch control detection unit 204, and 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.
The setting data S1 that control interface 206 receives from micro-control unit 108, S1 decodes to setting data, and judges that according to the status indication among the setting data S1 setting data S1 is touch-control setting data or display setting data.When setting data S1 is the touch-control setting data; Control connects 206 decoded touch-control setting data is sent to touch control detection unit 204; With control touch control detection unit 204 output touching signals ST; Micro-control unit 108 make control interface 206 can touching signals ST be sent to micro-control unit 108 through Communications Control Interface 106, so that can be judged the position that touch-control liquid crystal display panel 100 is touched according to touching signals ST.When setting data S1 was the display setting data, control interface 206 was sent to display driver circuit 202 with video data DI and decoded display setting data, so that display driver circuit 202 can drive display unit P1 according to decoded video data DI.
Wherein above-mentioned setting data S1 for example is the signal of one 8 bits, so not as limit.The setting data S1 of the flicker frequency when for instance, table 1 shows for control display driver circuit 202 drives display unit P1:
Table 1
Wherein, field D7 and D6 are used to judge the function of this setting data S1, and for example field D7 and D6 bit signal are promptly represented the flicker frequency of this setting data S1 function for control display unit P1 for " 11 " in the table 1.Field D5 among the setting data S1 is above-mentioned status indication, and the bit signal in field D5 is used to control the setting data S1 that display driver circuit 202 drives display unit P1 for this setting data of " 0 " interval scale S1.Similarly, the bit signal in field D5 is used to control the setting data S 1 that touch control detection unit 204 sensing touch control unit T1 export touching signals ST for this setting data of " 1 " interval scale S1.In addition; Field D0～D4 is the data content of setting data S1; The frequency of flicker when showing in order to decision system display unit P1 in the present embodiment; For example control display unit P1 does not glimmer when the bit signal among field D0～D4 is " 00000 ", and when the bit signal among field D0～D4 was " 00001 ", " 00010 " or " 00011 ", can set its flicker frequency that is respectively control display unit P1 was 2Hz, 1Hz and 0.5Hz.
In addition, for example table 2 is the mode initialization setting data S1 of control touch control detection unit 204:
Table 2
Similarly; Field D7, D6 and D1 are the function that is used to judge this setting data S 1, and for example the bit signal among field D7, D6 and the D1 is respectively " 1 " in the table 2, " 0 " and " 0 " representes that promptly this setting data S 1 function is the mode initialization setting data S 1 of touch control detection unit 204.And field D5 is above-mentioned status indication, the bit signal in field D5 for " 1 " this setting data of interval scale S 1 is for being used to control the setting data S1 that touch control detection unit 204 detects touch control unit T1.Field D4 is used for the operator scheme of setting touch unit T1, and touch control unit T1 is a normal mode when the bit signal of field D4 is " 0 ", and touch control unit T1 is a test pattern when the bit signal of field D4 is " 1 ".Field D3 and D2 are used to determine the sweep frequency of touch control unit T1, and when the bit signal among field D3 and the D2 was " 00 ", " 01 ", " 10 " or " 11 ", the sweep frequency of touch control unit T1 was respectively 1MHz, 4MHz, 8MHz and 12MHz.In addition, the activation that field D0 then is used for setting touch unit T1 whether, when the bit signal of field D0 during for " 0 " touch control unit T1 be enabled status, and touch control unit T1 is a disabled state when the bit signal of field D0 is " 1 ".
So utilize the status indication among the setting data S1 that micro-control unit 108 sends to judge that Communications Control Interface 106 at present for transmitting touch-control setting data or display setting data, makes touch-control liquid crystal display panel 200 only need use a transmission interface to reach and drives display unit P1 and the purpose that receives touching signals ST.Reduce the required wiring number of micro-control unit 108 significantly, and then simplify the communication protocol and the handling procedure of touch-control liquid crystal display panel 200, and reduce touch-control liquid crystal display panel 200 production costs.
In sum; The present invention utilizes in the touch-control liquid crystal display panel; Transmission interface between micro-control unit and display panels and contact panel is integrated into a Communications Control Interface, and judges that according to a status indication Communications Control Interface is at present for transmitting touch-control setting data or display setting data.So just can reduce the required wiring number of micro-control unit, reduce the complexity of making touch-control liquid crystal display panel, reduce production costs.
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 (6)
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 integrated chip receives a video data and drives this display unit according to this video data, and detects this touch-control action of user simultaneously and export a touching signals according to this touch-control action;
One micro-control unit couples this integrated chip, and this micro-control unit transmits a setting state mark and a setting data to this integrated chip; And
One Communications Control Interface, bridge joint transmit this video data, this touching signals, this setting state mark and this setting data in order between this integrated chip and this micro-control unit, to pass through a signal transfer protocol between this integrated chip and this micro-control unit,
Wherein this integrated chip judges that according to this setting state mark this setting data is a touch-control setting data or display setting data, this integrated chip also respectively according to this touch-control setting data and this display setting data to detect this touch-control action and to drive this display unit.
2. touch-control liquid crystal display panel as claimed in claim 1 is characterized in that, this integrated chip comprises:
One display driver circuit receives this video data and this display setting data, and this display driver circuit also drives this display unit according to these display setting data and this video data;
One touch control detection unit, this touch-control that detects the user according to this touch-control setting data moves, and according to this this touching signals of touch-control action output; And
One control interface; Couple this display driver circuit, this touch control detection unit and this Communications Control Interface; Decode this touch-control setting data and decoded this touch-control setting data is sent to this touch control detection unit; Export this touching signals to control this touch control detection unit, and this touching signals is sent to this micro-control unit through this Communications Control Interface, these display setting data of decoding also are sent to this display driver circuit with this video data and decoded these display setting data.
3. touch-control liquid crystal display panel as claimed in claim 2 is characterized in that, this display driver circuit and this touch control detection unit are connected to this display unit and said a plurality of touch control unit respectively through tin indium oxide.
4. touch-control liquid crystal display panel as claimed in claim 1 is characterized in that, this Communications Control Interface and this integrated chip directly are disposed on this touch-control liquid crystal display panel with the mode that chip-glass engages.
5. touch-control liquid crystal display panel as claimed in claim 1 is characterized in that, this Communications Control Interface is the internal integrated circuit transmission interface.
6. touch-control liquid crystal display panel as claimed in claim 1 is characterized in that, this Communications Control Interface is a Serial Peripheral Interface (SPI).
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010102510778A CN102375256A (en) | 2010-08-09 | 2010-08-09 | Touch liquid crystal display panel |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010102510778A CN102375256A (en) | 2010-08-09 | 2010-08-09 | Touch liquid crystal display panel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107561764A (en) * | 2017-10-30 | 2018-01-09 | 上海天马微电子有限公司 | Display panel and display device thereof |
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|---|---|---|---|---|
| US5841078A (en) * | 1992-06-08 | 1998-11-24 | Synaptics, Inc. | Object position detector |
| 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 CN2010102510778A patent/CN102375256A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5841078A (en) * | 1992-06-08 | 1998-11-24 | Synaptics, Inc. | Object position detector |
| 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 |
|---|---|---|---|---|
| CN107561764A (en) * | 2017-10-30 | 2018-01-09 | 上海天马微电子有限公司 | Display panel and display device thereof |
| US11009732B2 (en) | 2017-10-30 | 2021-05-18 | Shanghai Tianma Micro-electronics Co., Ltd. | Display panel and display device |
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Application publication date: 20120314 |