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Touch drive detecting circuit, display panel and display device

A detection circuit and touch drive technology, which is applied to the input/output process of electrical digital data processing, instruments, and data processing, etc. effect of time

Active Publication Date: 2015-04-22
XIAMEN TIANMA MICRO ELECTRONICS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the existing touch drive circuit must output touch scan signals to the drive one by one. Before the current drive electrode receives the touch scan signal, the next drive electrode cannot receive the touch scan signal, making the existing touch drive The reporting rate of the circuit is low and the power consumption is large

Method used

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  • Touch drive detecting circuit, display panel and display device
  • Touch drive detecting circuit, display panel and display device
  • Touch drive detecting circuit, display panel and display device

Examples

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Embodiment Construction

[0028] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only parts related to the present invention are shown in the drawings but not all of them, and the same or similar symbols in the drawings represent the same or similar elements or have the same or similar functions components.

[0029] figure 1 It is a structural diagram of a touch driving circuit in the prior art. Such as figure 1 As shown, the touch drive circuit includes a shift register module 11 and a gate output module 12, wherein the shift register module 11 includes an M-stage shift register (such as figure 1 shown in a1-a30), M-level NAND gate (such as figure 1 Shown in NAND 1-NAND 30), trigger signal li...

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Abstract

The invention discloses a touch drive detecting circuit, a display panel and a display device. The touch drive detecting circuit comprises multiple area drive detecting circuits corresponding to a plurality of touch areas. Each area drive detecting circuit comprises a control module, a gate output module, a detecting module, a first trigger signal line and a second trigger signal line, wherein the first trigger signal line inputs a first trigger signal to the control module and outputs a touch scanning signal while controlling a gate output unit, the detecting module detects whether the touch area corresponding to the first trigger signal line is touched or not according to the touch scanning signal, and when the touch area corresponding to the first trigger signal line is touched, the second trigger signal line in the area drive detecting circuit is triggered to input a primary trigger signal and controls the gate output unit to output the touch scanning signal stage by stage so that the position of the touch point in the touch area can be confirmed. By means of the circuit, the point reporting rate of the touch drive detecting circuit can be increased, and the power consumption is lowered.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a touch drive detection circuit, a display panel and a display device. Background technique [0002] With the rapid development of display technology, touch screen panels (Touch Screen Panels) have gradually spread in people's lives. At present, the in-cell touch panel (In Cell Touch Panel) is favored by major panel manufacturers because the touch components are embedded inside the display screen, which can not only reduce the overall thickness of the module, but also greatly reduce the production cost of the touch screen. . Therefore, the driving method of the embedded touch screen has also become a research hotspot. [0003] The existing in-cell touch screen includes: an array substrate and a color filter substrate arranged oppositely, and a liquid crystal layer arranged between the array substrate and the color filter substrate, and the surface of the color filter s...

Claims

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Application Information

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IPC IPC(8): G06F3/044
CPCG06F3/044G06F3/04166
Inventor 杨康鹏许育民
Owner XIAMEN TIANMA MICRO ELECTRONICS
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