A display panel and a touch display device
A technology for display panels and touch wiring, applied in instruments, calculations, electrical digital data processing, etc., can solve the problem of increased coupling capacitance of common electrode blocks, and achieve the effect of reducing coupling capacitance
Active Publication Date: 2019-04-30
XIAMEN TIANMA MICRO ELECTRONICS
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Problems solved by technology
[0004] However, when the self-capacitive In-cell touch display panel time-divisionally multiplexes the common electrode block to realize the display function and the touch function, the overlapping area of the touch trace and the common electrode block forms capacitance, which will cause the coupling of the common electrode block Capacitance increases
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[0027] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described through implementation with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are the embodiment of the present invention. Some, but not all, embodiments. 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.
[0028] Such as figure 1 As shown, it is a schematic diagram of a display panel provided in the prior art. The display panel includes a plurality of common electrode blocks 10 and a plurality of touch wires 20, and each common electrode block 10 is bridged with at least one touch wire 20; The wiring 20 is electrically connected to the driving chip 30 . ...
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The embodiment of the invention discloses a display panel and a touch-control display device. The display panel comprises a common electrode layer, wherein the common electrode layer comprises a plurality of common electrode blocks which are arranged in arrays, a plurality of touch-control routing lines which are correspondingly arranged with a plurality of the common electrode blocks respectively and electrically connected, and a plurality of sub-pixels, wherein each common electrode block covers a plurality of the sub-pixels in projection in the direction perpendicular to the display panel, and each sub-pixel comprises a thin-film transistor; any one of the common electrode blocks electrically connected with at least one touch-control routing line and overlapped with a plurality of the touch-control routing lines in an insulating manner comprises a plurality of first incising slits of which the extending directions are crossed with the extending directions of the touch-control routing lines, and any one of the first incising slits covers drain electrodes of the thin-film transistors of the two sub-pixels on two sides of each touch-control routing line in projection in the direction perpendicular to the display panel. The display panel provided by the embodiment of the invention lowers coupling capacitance of the common electrode blocks on the basis of not increasing process complexity.
Description
technical field [0001] Embodiments of the present invention relate to display panel technologies, and in particular, to a display panel and a touch display device. Background technique [0002] The current mainstream display devices are usually integrated with touch function and display function. The touch panel can be integrated on the display panel by the "On-cell" method, or the touch function can be integrated in the display panel by the "In-cell" method. , where On-cell refers to embedding the touch panel between the color filter substrate and the polarizer of the display panel, that is, setting the touch panel on the display panel, and In-cell refers to embedding the touch panel function inside the pixel of the display panel. Apparently, a display device integrated with a touch function using the "In-cell" method has the advantage of being thinner. [0003] In the existing In-cell display panel, the common electrode layer can be divided into multiple common electrode ...
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IPC IPC(8): G02F1/1333G02F1/1343G06F3/041
CPCG02F1/13338G02F1/134309G06F3/0412G02F1/134318
Inventor 邹龙生潘朝煌王志杰吴树茂
Owner XIAMEN TIANMA MICRO ELECTRONICS