Touch display device and driving method of the touch display device
A touch display device and touch technology, applied in the input/output process of data processing, instruments, calculations, etc., can solve the problems of large drive electrodes, longer charging time, and longer charging time, and achieve load reduction and reduction The effect of small capacitance and reduced charging time
Active Publication Date: 2018-04-06
SHANGHAI TIANMA MICRO ELECTRONICS CO LTD +1
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Problems solved by technology
[0004] In the existing technology, the common electrode layer is divided into several rows according to the number of channels of the driving signal, and used as the driving electrode drive. When the panel size is large, the load of the driving signal becomes larger, and the charging time required for the common electrode layer will be relatively longer. , for the In-cell touch screen with time-sharing work, the working time of the touch electrode and the working time of the driving electrode are a competitive relationship. The load of the driving electrode is relatively large, and the required charging time is relatively long, which affects the display. drive capability of the device
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[0031] 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.
[0032] The technical solution of this embodiment is applicable to the case where the touch electrode layer is multiplexed as a common electrode layer. The touch electrode layer of the touch display device provided in this embodiment is designed in such a way that it is divided into multiple touch sub-electrodes, which are connected by different connectio...
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A touch display device and a method for driving a touch display device. The touch display device includes a touch unit and a display unit; the touch unit includes a first touch electrode layer having a plurality of first touch electrodes, each of which includes a plurality of touch sub-electrodes; the display unit includes an array substrate, a color filter substrate disposed opposite to the array substrate, a display function layer disposed between the array substrate and the color filter substrate, and a plurality of gate electrodes disposed on the array substrate; where, a projection of each of the touch sub-electrodes in a direction perpendicular to the array substrate is located between two adjacent ones of the plurality of gate electrodes.
Description
technical field [0001] The present invention relates to a display device, in particular to a touch display device and a driving method of the touch display device. Background technique [0002] In recent years, with the rise of smart phones and tablet computers, the capacitive touch screen market has developed rapidly. Capacitive touch screen technology uses the current induction of the human body to work. When fingers or other objects touch the screen, due to the electric field of the human body, A coupling capacitance is formed between the finger and the electrode of the touch screen, and the position of the touch point can be obtained according to the current change on the detection electrode. [0003] Referring to Figure 1(a), it is a schematic cross-sectional view of a display device provided in the prior art (patent CN200910132037.9), the display device at least includes an array substrate and an opposite substrate, and an array substrate and an opposite substrate. To...
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IPC IPC(8): G06F3/044
CPCG06F3/0412G06F3/0416G06F3/044G06F2203/04112G06F3/0445G06F2203/04103
Inventor 王丽花周星耀张献祥许盈盈李晓晔刘刚
Owner SHANGHAI TIANMA MICRO ELECTRONICS CO LTD