Touch driving method, touch driving device and touch display screen
A touch driving and touch scanning technology, applied in the fields of touch driving method, touch display screen, and touch driving device, can solve the problems of low output stability, low output stability and touch noise of gate driver of array substrate, and improve touch control. Sensitivity, avoiding overlap, resolving effects of touch noise
Inactive Publication Date: 2014-12-10
BOE TECH GRP CO LTD
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- Application Information
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Problems solved by technology
At this moment when the overlap occurs, the output stability of the array substrate gate driver (GOA) is lower than that of other areas, and then touch noise will be generated at this moment when the overlap occurs
Method used
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[0021] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings.
[0022] Aiming at the problem that the touch scanning area and the display scanning area overlap at a certain moment to generate touch noise, an embodiment of the present invention provides a touch driving method, which includes:
[0023] During a touch scan period, when the touch scan area overlaps with the display scan area, the display scan proceeds normally, and the touch scan skips the touch scan area corresponding to the touch drive line when the overlap occurs. After scanning the touch drive line, any touch The touch scanning area corresponding to the driving line;
[0024] In the next touch scan period, the touch scan returns to the touch scan area corresponding to the touch drive line when the overlap occurs to sc...
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The invention discloses a touch driving method, a touch driving device and a touch display screen, wherein the touch driving method, the touch driving device and the touch display screen are used for lowering touch noise. The touch driving method comprises the steps that in one touch scanning period, when a touch scanning section and a display scanning area overlap, display scanning is conducted normally, and touch scanning jumps the touch scanning area corresponding to a touch driving line when overlapping occurs and scans the touch scanning area corresponding to any touch driving line behind the touch driving line; in the next touch scanning period, touch scanning returns to the touch scanning area corresponding to the touch driving line when overlapping occurs for scanning, wherein each touch scanning area corresponding to the corresponding touch driving line contains multiple rows of pixel units, each display scanning area corresponding to the corresponding display scanning line contains a row of pixel units, and the touch driving lines and the display scanning lines alternately conduct driving. By the adoption of the touch driving method, the touch driving device and the touch display screen, the situation that the touch scanning area and the display scanning area overlap sometime is effectively avoided, and generation of touch noise is fundamentally avoided.
Description
technical field [0001] The invention relates to the technical field of touch display, in particular to a touch driving method, a touch driving device and a touch display screen. Background technique [0002] The embedded touch display screen is formed by integrating the touch screen and the display screen, and the touch screen is embedded in the display screen. The electrodes of the touch screen include a plurality of touch driving lines Tx arranged horizontally and a plurality of touch sensing lines Rx arranged vertically. In the touch point positioning detection process, the touch driving lines Tx are scanned row by row, and when scanning each touch driving line Tx, the signals on all touch sensing lines Rx are read, and by scanning the touch sensing lines Rx column by column, the The intersection of each touch driving line and each touch sensing line can be scanned, so that the position of the touch point during the scanning process can be detected. [0003] The touch un...
Claims
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Login to View More IPC IPC(8): G06F3/041
CPCG06F3/04184G06F3/0412G06F3/04166
Inventor 赵家阳
Owner BOE TECH GRP CO LTD