CN204374940U - A kind of electronic equipment, touch control display apparatus and driving circuit - Google Patents

A kind of electronic equipment, touch control display apparatus and driving circuit Download PDF

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Publication number
CN204374940U
CN204374940U CN201420576246.9U CN201420576246U CN204374940U CN 204374940 U CN204374940 U CN 204374940U CN 201420576246 U CN201420576246 U CN 201420576246U CN 204374940 U CN204374940 U CN 204374940U
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display
touch
touch control
data
driving circuit
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CN201420576246.9U
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Inventor
莫良华
罗文俊
刘杰
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Focaltech Systems Ltd
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Focaltech Systems Ltd
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Abstract

The utility model discloses a kind of electronic equipment, touch control display apparatus and driving circuit, this driving circuit comprises: main control unit, for carrying out image procossing, and the view data after output processing, and for exporting touch control signal; Display driver circuit, for receiving described view data, changes described view data for show data accordingly, and exports described display data to described touch control display apparatus, shows each two field picture to drive described touch control display apparatus; Touch detection circuit, for receiving described touch control signal, and exporting touch detection signal to described touch control display apparatus, performing touch measuring ability to drive described touch control display apparatus under the control of described touch control signal; Described main control unit alternately exports described display data and described touch control signal, performs image display to drive described touch control display apparatus timesharing and touches measuring ability.It is less with the mutual interference touching detection signal that the application avoids display data.

Description

A kind of electronic equipment, touch control display apparatus and driving circuit
Technical field
The utility model relates to technical field of touch-control display, relates to a kind of electronic equipment, touch control display apparatus and driving circuit in particular.
Background technology
Touch technology and display technique being integrated in same electronic equipment, making electronic equipment have touch controllable function and Presentation Function simultaneously, is the main trend of current electron trade development.
At present, the existing electronic equipment with touch display function is when carrying out touch-control display and control, its image display driver detects to drive with touch and carries out simultaneously, and along with the raising of the lightening demand of touch display unit, spacing between display screen and touch-screen reduces gradually, and then makes the spacing of display driver circuit and touch detection circuit more and more less, therefore, the easy coupled noise of display data when display screen shows, to touch-screen, causes touch control detection to report point by mistake; Meanwhile, touch detection signal when touch-control controls also easily coupled noise to display screen, cause display abnormal.
Utility model content
For solving the problem, technical solutions of the utility model provide a kind of electronic equipment, touch control display apparatus and driving circuit, improve the report point rate of touch control detection while reducing the interference between display driver and touch control detection.
For achieving the above object, the utility model provides a kind of driving circuit of touch control display apparatus, and described touch control display apparatus is used for realizing image display and detects with touch, and described driving circuit comprises:
Main control unit, for carrying out image procossing, and the view data after output processing, and for exporting touch control signal;
Display driver circuit, for receiving described view data, changes described view data for show data accordingly, and exports described display data to described touch control display apparatus, shows each two field picture to drive described touch control display apparatus; With
Touch detection circuit, for receiving described touch control signal, and exporting touch detection signal to described touch control display apparatus, performing touch measuring ability to drive described touch control display apparatus under the control of described touch control signal;
Wherein, described main control unit alternately exports described display data and described touch control signal, performs image display to drive described touch control display apparatus timesharing and touches measuring ability.
Preferably, in above-mentioned driving circuit, described main control unit controls touch detection circuit at every turn provides touch detection signal to reach a schedule time to described touch control display apparatus, and in the described schedule time, described touch control display apparatus at least completes Integratively and touches detection operation.
Preferably, in above-mentioned driving circuit, the described schedule time is 2ms.
Preferably, in above-mentioned driving circuit, described main control unit exports each frame display data successively to described touch control display apparatus, each two field picture is shown to drive described touch control display apparatus, wherein, described main control unit exports described touch detection signal to described touch detection circuit after sending at least one frame display data, after the described touch detection signal of output reaches the described schedule time, send the display data of a new frame again to described touch control display apparatus.
The utility model additionally provides a kind of touch control display apparatus, and described touch control display apparatus comprises:
There is the touch unit of touch inductor;
There is the display unit of show electrode;
Driving circuit;
Wherein, described driving circuit is the driving circuit described in any one embodiment above-mentioned; The display driver circuit of described driving circuit is connected with described display unit, for providing display data for described show electrode; The touch detection circuit of described driving circuit is connected with described touch unit, for providing touch detection signal for described touch inductor.
Preferably, in above-mentioned touch control display apparatus, described touch inductor is self-capacitance induction electrode or mutual capacitance induction electrode.
Preferably, in above-mentioned touch control display apparatus, residing touch display unit is box above formula (On-cell) touch display unit or built-in (In-cell) touch display unit.
The utility model additionally provides a kind of electronic equipment, and described electronic equipment comprises:
Touch control display apparatus described in above-mentioned embodiment.
Preferably, in above-mentioned electronic equipment, described electronic equipment is mobile phone or panel computer.
The utility model additionally provides a kind of box above formula (On-cell) touch control display apparatus, comprising:
Touching display screen, detects with touch for performing image display; With
Driving circuit, comprising:
Main control unit, for carrying out image procossing, and the view data after output processing, and for exporting touch control signal;
Display driver circuit, for receiving described view data, changes described view data for show data accordingly, and exports described display data to described touching display screen, shows image to drive described touching display screen;
Touch detection circuit, for receiving described touch control signal, and exporting touch detection signal to described touching display screen, performing touch measuring ability to drive described touching display screen under the control of described touch control signal;
Wherein, described main control unit alternately exports described display data and described touch control signal, performs image display to drive described touching display screen timesharing and touches measuring ability.
Known by foregoing description, the driving circuit described in technical solutions of the utility model comprises: main control unit, for carrying out image procossing, and the view data after output processing, and for exporting touch control signal; Display driver circuit, for receiving described view data, changes described view data for show data accordingly, and exports described display data to described touch control display apparatus, shows each two field picture to drive described touch control display apparatus; Touch detection circuit, for receiving described touch control signal, and exporting touch detection signal to described touch control display apparatus, performing touch measuring ability to drive described touch control display apparatus under the control of described touch control signal; Wherein, described main control unit alternately exports described display data and described touch control signal, performs image display to drive described touch control display apparatus timesharing and touches measuring ability.Described driving circuit is when carrying out image display and detecting with touch, data will be shown and touch control signal alternately exports, timesharing can be realized perform image display and touch measuring ability, the mutual interference avoiding display data and touch detection signal improves the report point rate of touch control detection simultaneously, thus ensure that the display effect of described touch display unit and touch Detection results.
The touch control display apparatus of what the utility model provided comprise described driving circuit, and the electronic equipment comprising described touch control display apparatus timesharing can perform image display and touches measuring ability, can avoid showing data and the mutual interference touching detection signal.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiment of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
The structural representation of a kind of touch control display apparatus that Fig. 1 provides for the embodiment of the present application;
The structural representation of a kind of touching display screen that Fig. 2 provides for the embodiment of the present application;
The structural representation of the another kind of touching display screen that Fig. 3 provides for the embodiment of the present application;
The structural representation of a kind of electronic equipment that Fig. 4 provides for the embodiment of the present application.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
As described in background, if image display driver with touch detect drive carry out simultaneously time, display data can be disturbed mutually with touch detection signal, the easy coupled noise of display data when display screen is shown is to touch-screen, touch control detection is caused to report point by mistake, touch detection signal when touch-control is controlled also easy coupled noise, to display screen, causes display abnormal.
For solving the problem, the embodiment of the present application provides a kind of driving circuit of touch control display apparatus, described touch control display apparatus is used for realizing image display and detects, with reference to the structural representation of a kind of touch control display apparatus 100 that figure 1, Fig. 1 provides for the embodiment of the present application with touch.Described touch control display apparatus 100 comprises driving circuit 10 and touching display screen 20.Described touching display screen 20 detects with touch for performing image display.
Described driving circuit 10 detects with touch for driving described touching display screen 20 to perform image display.Described driving circuit 10 comprises main control unit (System On Chip, SOC) 11, display driver circuit 12 and touch detection circuit 13.Described display driver circuit 12 is connected between described main control unit 11 and described touching display screen 20.Described touch detection circuit 13 is connected between described main control unit 11 and described touching display screen 20.Wherein, described touching display screen 20 comprises touch inductor (not shown) and show electrode (not shown).Described touch inductor and show electrode or be respectively independently element, or be that the two shares a part of element, or the two performs two kinds of functions respectively for identity element.Described touch inductor is for responding to the touch operation of user.Described show electrode, for responding display data, performs image display to make described touching display screen 20 and detects with touch.
Described main control unit 11 is for carrying out image procossing, and the view data after output processing, and for exporting touch control signal.Described image procossing comprises image to be shown is carried out to format conversion, amplifies or reduces process etc., and described format conversion can be the second form by data to be displayed by the first format conversion, as yuv format is converted to rgb format.Described touch control signal detects for driving described touch detection circuit 13 to carry out touch.
Display driver circuit 12, for receiving described view data, changes described view data for show data accordingly, and output display data give described touching display screen 20, show image to drive described touching display screen 20.Preferably, described display driver circuit 12 exports each frame display data successively to described touching display screen 20, shows each two field picture to drive described touching display screen 20.The display data that described display driver circuit 12 exports, in units of frame, carry out image display frame by frame to control described touching display screen 20.Data life period interval is shown in frame display data and next frame.
Touch detection circuit 13 for receiving described touch control signal, and exports touch detection signal to described touching display screen 20 under the control of described touch control signal, performs touch measuring ability to drive described touching display screen 20.
Wherein, described main control unit 11 alternately exports described display data and described touch control signal, performs image display to drive described touching display screen 20 timesharing and touches measuring ability.
Described main control unit 11 controls touch detection circuit 13 at every turn provides touch detection signal to reach a schedule time to described touching display screen 20, and in the described schedule time, described touching display screen 20 at least completes Integratively and touches detection operation.Wherein, all touch inductors of described touching display screen 20 are that described Integratively touches detection operation by the whole Scanning Detction Operation Definition once of described driving circuit 10.That is, the duration of the touch detection signal that described main control unit 11 provides at every turn needs to be not less than the described schedule time, so that may be done to few once complete touch operation by described touch control display apparatus 100.Preferably, the described schedule time is 2ms, but the not equal factor of the touch type due to touch control display apparatus 100, the described schedule time also can be other right times, does not limit to 2ms.
Described described display data and the described touch control signal of alternately exporting is that described main control unit 11 exports described touch detection signal to described touch detection circuit 13 after sending at least one frame and showing data, and sends the display data of a new frame again to described touching display screen 20 after the described touch detection signal of output reaches the described schedule time.
Concrete, can be show between data in the first display data and second to export described touch detection signal, it can be all a frame image data that described first display data and described second show data; Or, described first display data and described second show data and include multiframe and show data, and do not export described touch detection signal between each frame display data of the first display data, do not export described touch detection signal between each frame display data of the second display data; Or described first display data are frame display data, and described second display data are multiframe display data, and do not export described touch detection signal between each frame display data of the second display data; Or described first display data are multiframe display data, described second display data are frame display data, and do not export described touch detection signal between each frame display data of described first display data.
Because described main control unit 11 replaces output display data and touch control signal, drive described display driver circuit 10 and touch detection circuit 13 with timesharing, and then the Presentation Function of described touching display screen 20 can be driven and touch measuring ability time-sharing work.
Known by foregoing description, the display and control of driving circuit 10 described in the present embodiment is that timesharing is carried out with touching detection control, thus avoid display data and the mutual interference touching detection signal, thus ensure that the display effect of described touch display unit 100 and touch Detection results.
Described touching display screen 20 is preferably box above formula (On-cell) touching display screen.Please refer to Fig. 2, the structural representation of touching display screen 20 first embodiment that Fig. 2 provides for the application.In order to distinguish the touching display screen of the second embodiment of described touching display screen 20 below, the label of the touching display screen of the first embodiment and the second embodiment is denoted as 20A and 20B.Described touching display screen 20A comprises: touch control unit 100 and display unit 200.Described touch control unit 100 has described touch inductor, and described display unit 200 has described show electrode.
In the present embodiment, described display unit 200 is liquid crystal display, comprising: the colored filter substrate 203 be oppositely arranged and thin film transistor base plate 205; Be arranged on the liquid crystal layer 204 between described colored filter substrate 203 and described thin film transistor base plate 205; Be arranged on the second polaroid 206 that described thin film transistor base plate 205 deviates from described liquid crystal layer 204 1 side surface; Be arranged on the first polaroid 202 that described colored filter substrate 203 deviates from described liquid crystal layer 204 side; Be arranged on the cover sheet 201 that described first polaroid 202 deviates from described colored filter 203 1 side surface.Wherein, described thin film transistor base plate 205 surface is provided with described show electrode.
Described touch control unit 100 is arranged between described first polaroid 202 and described colored filter substrate 203.Described touch control unit 100 comprises described touch inductor, and described touch inductor is preferably self-capacitance induction electrode.Described touch inductor is arranged between described colored filter substrate and described first polaroid 202.
Further, described touching display screen 20 can also be built-in (In-cell) touching display screen.Please refer to Fig. 3, Fig. 3 is the structural representation of described touching display screen 30 second embodiment.Described touching display screen 20B comprises: display unit 300 and touch unit 400, and described display unit 300 comprises: the colored filter substrate 303 be oppositely arranged and thin film transistor base plate 305; Be arranged on the liquid crystal layer 304 between described colored filter substrate 303 and described thin film transistor base plate 305; Be arranged on the second polaroid 306 that described thin film transistor base plate 305 deviates from described liquid crystal layer 304 1 side surface; Be arranged on the first polaroid 302 that described colored filter substrate 303 deviates from described liquid crystal layer 304 side; Be arranged on the cover sheet 301 that described first polaroid 302 deviates from described colored filter 303 1 side surface.
Wherein, described touch control unit 400 is provided with between described colored filter substrate 303 and described liquid crystal layer 304.Described thin film transistor base plate 305 surface is provided with described show electrode.Described touch inductor can be self-capacitance induction electrode or mutual capacitance induction electrode equally.
In addition, the position of described touch control unit 400 is not limited between the colored filter substrate 303 shown in Fig. 3 and liquid crystal layer 304, also can be arranged between described thin film transistor base plate 305 and liquid crystal layer 304, or multiplexing described show electrode performs touch measuring ability.
The driving circuit 10 of touch control display apparatus 100 described in the present embodiment can show and touch measuring ability by Time-sharing control, can avoid the interference showing data and touch between detection signal, has good display and touch detection perform.
The display unit of touch control display apparatus 100 of the present utility model is not limited to liquid crystal display, also can be the display unit of other suitable type, as OLED etc.
Based on above-described embodiment, the application another embodiment still provides a kind of electronic equipment, comprise touch control display apparatus 100 described in above-described embodiment with reference to electronic equipment 41 described in figure 4, Fig. 4.
Electronic equipment 41 described in the present embodiment can be the electronic equipment such as mobile phone or panel computer.
Electronic equipment described in the present embodiment has touch control display apparatus 100 described in above-described embodiment, when carrying out touch display and control, can show and touch measuring ability by Time-sharing control, the interference showing data and touch between detection signal can be avoided, there is good display and touch detection perform.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the utility model.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from spirit or scope of the present utility model, can realize in other embodiments.Therefore, the utility model can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.

Claims (10)

1. a driving circuit for touch control display apparatus, described touch control display apparatus is used for realizing image display and detects with touch, and it is characterized in that, described driving circuit comprises:
Main control unit, for carrying out image procossing, and the view data after output processing, and for exporting touch control signal;
Display driver circuit, for receiving described view data, changes described view data for show data accordingly, and exports described display data to described touch control display apparatus, shows image to drive described touch control display apparatus; With
Touch detection circuit, for receiving described touch control signal, and exporting touch detection signal to described touch control display apparatus, performing touch measuring ability to drive described touch control display apparatus under the control of described touch control signal;
Wherein, described main control unit alternately exports described display data and described touch control signal, performs image display to drive described touch control display apparatus timesharing and touches measuring ability.
2. driving circuit as claimed in claim 1, it is characterized in that, described main control unit controls touch detection circuit at every turn provides touch detection signal to reach a schedule time to described touch control display apparatus, and in the described schedule time, described touch control display apparatus at least completes Integratively and touches detection operation.
3. driving circuit as claimed in claim 2, it is characterized in that, the described schedule time is 2ms.
4. driving circuit as claimed in claim 2, it is characterized in that, described main control unit exports each frame display data successively to described touch control display apparatus, each two field picture is shown to drive described touch control display apparatus, wherein, described main control unit exports described touch detection signal to described touch detection circuit after sending at least one frame display data, after the described touch detection signal of output reaches the described schedule time, send the display data of a new frame again to described touch control display apparatus.
5. a touch control display apparatus, is characterized in that, described touch control display apparatus comprises:
There is the touch unit of touch inductor;
There is the display unit of show electrode;
Driving circuit;
Wherein, described driving circuit is the driving circuit as described in any one of claim 1-4; The display driver circuit of described driving circuit is connected with described display unit, for providing display data for described show electrode; The touch detection circuit of described driving circuit is connected with described touch unit, for providing touch detection signal for described touch inductor.
6. touch control display apparatus according to claim 5, is characterized in that, described touch inductor is self-capacitance induction electrode or mutual capacitance induction electrode.
7. touch control display apparatus according to claim 5, is characterized in that, residing touch display unit is box above formula touch display unit or built-in touch display unit.
8. an electronic equipment, is characterized in that, described electronic equipment comprises:
Touch control display apparatus as described in any one of claim 5-7.
9. electronic equipment according to claim 8, is characterized in that, described electronic equipment is mobile phone or panel computer.
10. a box above formula touch control display apparatus, comprising:
Touching display screen, detects with touch for performing image display; With
Driving circuit, comprising:
Main control unit, for carrying out image procossing, and the view data after output processing, and for exporting touch control signal;
Display driver circuit, for receiving described view data, changes described view data for show data accordingly, and exports described display data to described touching display screen, shows image to drive described touching display screen;
Touch detection circuit, for receiving described touch control signal, and exporting touch detection signal to described touching display screen, performing touch measuring ability to drive described touching display screen under the control of described touch control signal;
Wherein, described main control unit alternately exports described display data and described touch control signal, performs image display to drive described touching display screen timesharing and touches measuring ability.
CN201420576246.9U 2014-09-30 2014-09-30 A kind of electronic equipment, touch control display apparatus and driving circuit Active CN204374940U (en)

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CN201420576246.9U CN204374940U (en) 2014-09-30 2014-09-30 A kind of electronic equipment, touch control display apparatus and driving circuit
TW104205433U TWM512168U (en) 2014-09-30 2015-04-10 Electronic device and touch display device and driving circuit

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105528124A (en) * 2014-09-30 2016-04-27 敦泰科技有限公司 Electronic equipment, touch display device and driving circuit

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017123125A (en) 2016-01-08 2017-07-13 キヤノン株式会社 Display control device and method for controlling the same, program, and recording medium

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105528124A (en) * 2014-09-30 2016-04-27 敦泰科技有限公司 Electronic equipment, touch display device and driving circuit

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