CN104992684A - Display used for controlling gate drive timing sequence and corresponding control method - Google Patents
Display used for controlling gate drive timing sequence and corresponding control method Download PDFInfo
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- CN104992684A CN104992684A CN201510392461.2A CN201510392461A CN104992684A CN 104992684 A CN104992684 A CN 104992684A CN 201510392461 A CN201510392461 A CN 201510392461A CN 104992684 A CN104992684 A CN 104992684A
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- gate drive
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Abstract
The invention provides a display used for controlling the gate drive timing sequence, comprising a touch screen, a gate drive signal sending unit, a touch scanning unit, and a timing sequence control unit. The gate drive signal sending unit is used to send more than one gate drive signal. The touch scanning unit is used to send a touch scanning signal. The timing sequence control unit is connected with the gate drive signal sending unit and the touch scanning unit, and is used to control a timing sequence of the gate drive signals and adjust the timing sequence of the touch scanning signal according to the timing sequence of the gate drive signals.
Description
Technical field
The present invention relates to a kind of method of control grid driver' s timing, particularly relate to a kind of method of the gate drive sequential controlled on array circuit.
Background technology
Along with the progress of LCD Technology, the display quality of mobile phone, personal digital assistant (PDA), digital camera, computer screen or notebook computer screen, appearance design etc. also significantly promote.
Gate Driver On Array, is called for short GOA, namely on the multiple substrate of existing Thin Film Transistor-LCD, makes scan drive circuit, realize the type of drive of lining by line scan to sweep trace, and widely used by small-medium size display.
In addition, touch technology (Touch Technology) progress in recent years, existing multiple touch technology drops into volume production.The In-cell touch technology that production cost is low can be combined with GOA circuit, but has the unmatched problem of sweep frequency, and therefore the present invention proposes a kind of method of control grid driver' s timing, can realize GOA circuit and touch circuit sweep frequency is inconsistent.
Summary of the invention
The object of the present invention is to provide a kind of display of energy control grid driver' s timing and corresponding method, to realize the interruption of gate drive signal scanning, and when interrupting to a touch scanning signals scanning, solve the technical matters of corresponding GOA circuit and the inconsistent situation of touch circuit sweep frequency.
For solving the problem, technical scheme provided by the invention is as follows:
The embodiment of the present invention provides a kind of display for control grid driver' s timing, comprising:
One touch-screen;
One gate drive signal transmitting unit, in order to send more than one gate drive signal;
One touch-control scanning element, in order to send a touch scanning signals; And
One timing control unit, be connected with described gate drive signal transmitting unit and described touch-control scanning element, in order to the sequential that controls described gate drive signal with and adjust the described sequential of described touch scanning signals according to the described sequential of described gate drive signal, interrupt the scanning of gate drive signal, and through described touch scanning signals, described touch-screen is scanned when interrupting.
In addition, the scheduled time slot without level change is added in each gate drive signal in the whole described gate drive signal that described timing control unit sends at described gate drive signal transmitting unit, in described scheduled time slot, the scanning of described gate drive signal is utilized to be interrupted, and the described sequential of described touch scanning signals is adjusted according to described scheduled time slot, make described touch scanning signals within the period of correspondence to be enabled status, to scan described touch-screen.
In one embodiment, the level of described gate drive signal is permanent High level in described scheduled time slot.
In one embodiment, the level of described gate drive signal is lasting low level in described scheduled time slot.
In one embodiment, described gate drive signal comprises two or more gate drive signal, has corresponding scheduled time slot respectively.
In one embodiment, gate drive signal described in each is in the described scheduled time slot changed without level, and level is identical.
After the scanning process of the whole described gate drive signal sent when described gate drive signal transmitting unit terminates, the described touch scanning signals sent through described touch-control scanning element scans described touch-screen, and now described timing control unit adds the described low level sequential of a long duration or high level sequential in gate drive signal described in each.
Present invention provides a kind of method of control grid driver' s timing, comprising step has:
Send more than one gate drive signal;
Send a touch scanning signals; And
The sequential controlling described gate drive signal with and according to gate drive signal described in sequence scanning a sequential with and adjust the described sequential of described touch scanning signals according to the described sequential of described gate drive signal, interrupt the scanning of gate drive signal, and through described touch scanning signals, described touch-screen is scanned when interrupting.
In addition, the scheduled time slot without level change is added in each gate drive signal in described whole described gate drive signal, in described scheduled time slot, the scanning of described gate drive signal is utilized to be interrupted, and the described sequential of described touch scanning signals is adjusted according to described scheduled time slot, make described touch scanning signals within the period of correspondence to be enabled status, to scan described touch-screen.
In one embodiment, the level of described gate drive signal is permanent High level in described scheduled time slot.
In one embodiment, the level of described gate drive signal is lasting low level in described scheduled time slot.
In one embodiment, described gate drive signal comprises two or more gate drive signal, has corresponding scheduled time slot respectively.
In one embodiment, gate drive signal described in each is in the described scheduled time slot changed without level, and level is identical.
After the scanning process of whole described gate drive signal terminates, the described touch scanning signals sent through described touch-control scanning element scans described touch-screen, now adds the described low level sequential of a long duration or high level sequential in gate drive signal described in each.
The sweep frequency that present invention achieves GOA circuit and touch circuit is inconsistent, allows GOA scan and interrupts, increase the sweep frequency of touch circuit, realize multi-point touch.
For foregoing of the present invention can be become apparent, preferred embodiment cited below particularly, and coordinate institute's accompanying drawings, be described in detail below:
Accompanying drawing explanation
Fig. 1 is the Partial Block figure of the display of energy control grid driver' s timing of the present invention;
Fig. 2 is the sequential chart that gate drive signal in prior art on array circuit and touch scanning signals scan;
Fig. 3 ~ 8 are the sequential chart scanned according to the gate drive signal on the array circuit of embodiments of the invention and touch scanning signals.
Embodiment
The explanation of following embodiment is graphic with reference to what add, can in order to the specific embodiment implemented in order to illustrate the present invention.The direction term that the present invention mentions, such as " on ", D score, "front", "rear", "left", "right", " interior ", " outward ", " side " etc., be only the direction with reference to annexed drawings.Therefore, the direction term of use is in order to illustrate and to understand the present invention, and is not used to limit the present invention.
As shown in Figure 1, for the Partial Block figure of the display 100 of energy control grid driver' s timing of the present invention, wherein, in order to interrupt the scanning of gate drive signal, and the timing control unit 4 through described touch scanning signals, described touch-screen scanned when interrupting, comprise a gate drive signal transmitting unit 2, in order to send two gate drive signals CK, XCK, in the present embodiment, two gate drive signals are examples, and gate drive signal number of the present invention can be other numbers more than one; One touch-control scanning element 3, in order to send a touch scanning signals Tx; And a timing control unit 4, be connected with described gate drive signal transmitting unit 2 and described touch-control scanning element 3, in order to the sequential that controls described gate drive signal CK, XCK with and adjust the described sequential of described touch scanning signals Tx according to the described sequential of described gate drive signal CK, XCK, interrupt the scanning of gate drive signal CK, XCK, and make described touch scanning signals Tx be enabled status when interrupting, allow Tx become and the synperiodic square wave of gate drive signal CK, XCK from lasting low level, described touch-screen 1 is scanned.
As shown in Figure 2, be the gate drive signal CK on the array circuit of prior art, gate drive signal XCK, with the sequential chart of touch scanning signals Tx; The gate drive signal CK of wherein said GOA circuit, gate drive signal XCK, be square wave, and in the same time, CK and XCK phase place is contrary.When panel normally works, first carry out GOA circuit gate drive signal scanning, after all gate drive signal scannings terminate, through described touch scanning signals Tx, described touch-screen 1 is scanned again, there is not interruption in the process of GOA circuit gate drive signal scanning, therefore GOA circuit is consistent with the sweep frequency of touch-control circuit.
As shown in Figure 3, the gate drive signal CK that the gate drive signal transmitting unit 2 for one of the present invention embodiment scans, the XCK of gate drive signal, the sequential chart of the touch scanning signals Tx scanned with touch-control scanning element 3; Wherein gate drive signal CK, gate drive signal XCK, be square wave, and in the same time, CK and XCK phase place is contrary, and timing control unit 4 inserts long-time low level sequential L_CK in the scanning process of CK and XCK.Therefore the interruption period of low level sequential L_CK is had when carrying out gate drive signal scanning, achieve the interruption of gate drive scanning, and make described touch scanning signals Tx be enabled status when interrupting, as shown in Figure 3, become and the synperiodic square wave of gate drive signal CK, XCK from lasting low level, described touch-screen 1 is scanned.
As shown in Figure 4, the gate drive signal CK that the gate drive signal transmitting unit 2 for one of the present invention embodiment scans, gate drive signal XCK, the sequential chart of the touch scanning signals Tx scanned with touch-control scanning element 3; Wherein gate drive signal CK, gate drive signal XCK, be square wave, and in the same time, CK and XCK phase place is contrary, and timing control unit 4 inserts long-time high level sequential H_CK in the scanning process of CK and XCK.Therefore the interruption period of high level sequential H_CK is had when carrying out gate drive signal scanning, achieve the interruption of gate drive scanning, and make described touch scanning signals Tx be that enabled status is come when interrupting, as shown in Figure 4, become and the synperiodic square wave of gate drive signal CK, XCK from lasting low level, described touch-screen 1 is scanned.
As shown in Figure 5, the gate drive signal CK that the gate drive signal transmitting unit 2 for one of the present invention embodiment scans, gate drive signal XCK, the sequential chart of the touch scanning signals Tx scanned with touch-control scanning element 3; Wherein said gate drive signal CK, gate drive signal XCK, be square wave, and CK and XCK phase place is contrary in the same time, and timing control unit 4 indivedual insertion long-time high level sequential H_CK and low level sequential L_CK in the scanning process of CK and XCK.Therefore the interruption period of high level sequential H_CK and low level sequential L_CK is had when carrying out gate drive signal scanning, achieve the interruption of gate drive scanning, and make described touch scanning signals Tx be enabled status when interrupting, as shown in Figure 5, become and the synperiodic square wave of gate drive signal CK, XCK from lasting low level, described touch-screen 1 is scanned.
As can be seen from figures 6 to 8, the gate drive signal CK that the gate drive signal transmitting unit 2 for one of the present invention embodiment scans, gate drive signal XCK, the sequential chart of the touch scanning signals Tx scanned with touch-control scanning element 3; Wherein said gate drive signal CK, gate drive signal XCK, be square wave, and in the same time, CK and XCK phase place is contrary, and timing control unit 4 inserts long-time low level sequential L_CK in the scanning process of CK and XCK.Therefore the interruption period of low level sequential L_CK is had when carrying out gate drive signal scanning, achieve the interruption of gate drive scanning, and make described touch scanning signals Tx be enabled status when interrupting, as can be seen from figures 6 to 8, become and gate drive signal CK from lasting low level, the synperiodic square wave of XCK, described touch-screen 1 is scanned, and can after the scanning process of CK and XCK terminates, timing control unit 4 inserts long-time low level sequential L_CK or high level sequential H_CK in the sequential of CK and XCK, now do not affect gate drive signal CK, through the situation that described touch scanning signals Tx scans described touch-screen 1 after XCK scanning process terminates.
In sum; although the present invention discloses as above with preferred embodiment; but above preferred embodiment is also not used to limit the present invention; those of ordinary skill in the art; without departing from the spirit and scope of the present invention; all can do various change and retouching, the scope that therefore protection scope of the present invention defines with claim is as the criterion.
Claims (14)
1. for a display for control grid driver' s timing, it is characterized in that, comprising:
One touch-screen;
One gate drive signal transmitting unit, in order to send more than one gate drive signal;
One touch-control scanning element, in order to send a touch scanning signals; And
One timing control unit, be connected with described gate drive signal transmitting unit and described touch-control scanning element, in order to the sequential that controls described gate drive signal with and adjust the described sequential of described touch scanning signals according to the described sequential of described gate drive signal, interrupt the scanning of gate drive signal, and through described touch scanning signals, described touch-screen is scanned when interrupting.
2. as claimed in claim 1 for the display of control grid driver' s timing, it is characterized in that the scheduled time slot added in each the gate drive signal in the whole described gate drive signal that described timing control unit sends at described gate drive signal transmitting unit without level change, in described scheduled time slot, the scanning of described gate drive signal is utilized to be interrupted, and the described sequential of described touch scanning signals is adjusted according to described scheduled time slot, making described touch scanning signals within the period of correspondence is enabled status, described touch-screen is scanned.
3., as claimed in claim 2 for the display of control grid driver' s timing, it is characterized in that the level of described gate drive signal is permanent High level in described scheduled time slot.
4., as claimed in claim 2 for the display of control grid driver' s timing, it is characterized in that the level of described gate drive signal in described scheduled time slot for continuing low level.
5. the display of energy control grid driver' s timing as claimed in claim 1, is characterized in that described gate drive signal comprises two or more gate drive signal, has corresponding scheduled time slot respectively.
6. the display of energy control grid driver' s timing as claimed in claim 5, it is characterized in that gate drive signal described in each is in the described scheduled time slot changed without level, level is identical.
7. as claimed in claim 1 for the display of control grid driver' s timing, after it is characterized in that the scanning process of the whole described gate drive signal sent when described gate drive signal transmitting unit terminates, the described touch scanning signals sent through described touch-control scanning element scans described touch-screen, and now described timing control unit adds the described low level sequential of a long duration or high level sequential in gate drive signal described in each.
8. a method for control grid driver' s timing, is characterized in that, comprising step has:
Send more than one gate drive signal;
Send a touch scanning signals; And
The sequential controlling described gate drive signal with and according to gate drive signal described in sequence scanning a sequential with and adjust the described sequential of described touch scanning signals according to the described sequential of described gate drive signal, interrupt the scanning of gate drive signal, and through described touch scanning signals, one touch-screen is scanned when interrupting.
9. the method for control grid driver' s timing as claimed in claim 8, it is characterized in that, separately comprising step has:
The scheduled time slot without level change is added in each gate drive signal in described whole described gate drive signal, in described scheduled time slot, the scanning of described gate drive signal is utilized to be interrupted, and the described sequential of described touch scanning signals is adjusted according to described scheduled time slot, make described touch scanning signals within the period of correspondence to be enabled status, to scan described touch-screen.
10. the display of energy control grid driver' s timing as claimed in claim 9, is characterized in that the level of described gate drive signal is permanent High level in described scheduled time slot.
The display of 11. energy control grid driver' s timing as claimed in claim 9, is characterized in that the level of described gate drive signal in described scheduled time slot for continuing low level.
The display of 12. energy control grid driver' s timing as claimed in claim 9, is characterized in that described gate drive signal comprises two or more gate drive signal, has corresponding scheduled time slot respectively.
The display of 13. energy control grid driver' s timing as claimed in claim 9, it is characterized in that gate drive signal described in each is in the described scheduled time slot changed without level, level is identical.
The method of 14. control grid driver' s timing as claimed in claim 8, it is characterized in that, separately comprising step has:
After the scanning process of whole described gate drive signal terminates, the described touch scanning signals sent through described touch-control scanning element scans described touch-screen, now adds the described low level sequential of a long duration or high level sequential in gate drive signal described in each.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510392461.2A CN104992684A (en) | 2015-07-07 | 2015-07-07 | Display used for controlling gate drive timing sequence and corresponding control method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510392461.2A CN104992684A (en) | 2015-07-07 | 2015-07-07 | Display used for controlling gate drive timing sequence and corresponding control method |
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| CN105206244A (en) * | 2015-10-29 | 2015-12-30 | 武汉华星光电技术有限公司 | GOA circuit and liquid crystal display |
| CN105469758A (en) * | 2015-12-14 | 2016-04-06 | 昆山龙腾光电有限公司 | Liquid crystal display drive circuit |
| CN107643850A (en) * | 2017-10-13 | 2018-01-30 | 北京集创北方科技股份有限公司 | The drive system of display panel |
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Application publication date: 20151021 |