Self-capacitive touch display module, display driving method and touch display device
A technology of touch display and driving method, applied in the fields of touch display devices and self-capacitive touch display modules, can solve the problems of reducing the transmittance of display panels, reducing the yield rate of arrays, and failing to achieve higher touch accuracy.
Inactive Publication Date: 2020-06-30
BOE TECH GRP CO LTD +1
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Problems solved by technology
[0003] The main purpose of the present invention is to provide a self-capacitive touch display module, a display driving method and a touch display device, which solve the problem that the existing self-capacitive touch display module needs to add additional touch wiring, which will reduce the transmission of the display panel. rate, lowering the array yield, and the touch sensor cannot be made the same size as the pixel electrode, and it is impossible to achieve high touch accuracy.
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[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0022] The self-capacitive touch display module according to the embodiment of the present invention includes a gate drive circuit, a gate line, and a data line; a pixel electrode is arranged in a pixel area defined by the gate line and the data line;
[0023] The pixel electrodes are used for touch sensing during the touch time period included in each display cycle; the self-capacitive touch display module also includes a data drive unit;
[0024] The data dr...
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The invention provides a self-contained touch display module, a display drive method and a touch display device. The self-contained touch display module includes a gate drive circuit, data lines and data lines; a pixel electrode is formed in each pixel region formed by the data lines and the data lines; the pixel electrodes are used for conducting touch sensing in touch control time periods contained in each display cycle; the self-contained touch display module further includes a display drive unit which is connected with the data lines and used for sending a touch control scanning signal to the data lines in the touch control time periods contained in each display cycle. The pixel electrodes can be reused as touch control electrodes, the data lines can be reused as touch control lines, high touch accuracy can be achieved, no additional touch control lines are needed, the transmittance of a liquid crystal display panel can be improved, and the yield of an array is improved.
Description
technical field [0001] The present invention relates to the technical field of touch display, in particular to a self-capacitive touch display module, a display driving method and a touch display device. Background technique [0002] The existing implementation method of the embedded touch screen is to divide the common electrode into M×N squares, M and N are positive integers, each square is used as a touch sensor, and the touch The sensor is connected to the driver chip. When each frame is displayed, the driver chip outputs a common voltage to the touch sensor to control the display; after each frame is displayed, the driver chip outputs a high-frequency touch scanning signal to the touch sensor to detect the touch position. Existing self-capacitive touch display modules need to add additional touch traces, which will reduce the transmittance of the display panel and the yield of the array, and the touch sensor cannot be made the size of a pixel electrode, which cannot ac...
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IPC IPC(8): G06F3/044G06F3/041G02F1/1333
CPCG02F1/13338G06F3/0412G06F3/0416G06F3/044
Inventor 崔志佳徐帅王智勇赵庆路永全郭蕾史磊刘汉青于刚
Owner BOE TECH GRP CO LTD