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Grid driving circuit, touch display device and touch display driving method

A gate drive circuit and touch display technology, which is applied in the field of gate drive circuits and touch display devices, can solve problems such as affecting display screen display and insufficient charging of pixel units, so as to increase the time of touch drive and realize normal operation. Touch recognition, to ensure the effect of normal touch recognition

Active Publication Date: 2015-09-16
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the actual process, it is found that due to the reduced charging time of the pixel unit in the display stage, the charging of the pixel unit is insufficient, which affects the display of the display screen.

Method used

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  • Grid driving circuit, touch display device and touch display driving method
  • Grid driving circuit, touch display device and touch display driving method
  • Grid driving circuit, touch display device and touch display driving method

Examples

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Embodiment Construction

[0039] In order to enable those skilled in the art to better understand the technical solution of the present invention, v provided by the present invention will be described in detail below in conjunction with the accompanying drawings.

[0040] figure 1 A schematic structural diagram of a gate drive circuit provided in Embodiment 1 of the present invention, as shown in figure 1 As shown, the gate drive circuit includes: several GOA (Gate On Array) unit groups arranged in sequence, GOA unit group 1 includes several cascaded shift registers SR_1, SR_2...SR_n-1, SR_n, SR_n+ 1. SR_n+2..., a control unit 2 is set between two adjacent GOA unit groups 1; the control unit 2 is used to complete the corresponding shift register SR_n in the last stage of the corresponding previous GOA unit group After the gate lines are driven and after a preset time has elapsed, an initial control signal in a high level state is output to the signal input terminal Output_n+1 of the first-stage shift ...

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Abstract

The invention discloses a grid driving circuit, a touch display device and a touch display driving method. The grid driving circuit comprises a plurality of GOA (Gate On Array) unit groups which are arranged in turn; every GOA unit group comprises a plurality of cascaded shifting registers; a control unit is arranged between every two adjacent GOA unit groups; every control unit is used for outputting an initial control signal which is located at the high level state to a signal input end of the first grade shifting register of the corresponding next GOA unit group after the driving on a corresponding grid line is achieved through the last grade shifting register of the corresponding previous GOA unit group and a preset time is passed so as to precharge the first grade shifting register of the next GOA unit group. According to the grid driving circuit, the touch display device and the touch display driving method, the normal touch identification in the touch phase is implemented under the condition that the normal display of a touch display screen in the display phase can be effectively ensured.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a gate drive circuit, a touch display device and a touch display driving method. Background technique [0002] The existing in-cell (IN-CELL) touch display screen has the advantages of good durability, high reliability, multi-touch, etc., and is widely used in the field of consumer electronics. [0003] The working process of the embedded touch screen generally includes a touch phase and a display phase. In the prior art, the touch phase of the touch screen can only be located in the blank time period between two adjacent frames. As the display resolution of the display screen increases, the blank time period between two adjacent frames will be compressed, so that the blank time period between two adjacent frames cannot meet the time required for driving in the touch stage. [0004] In order to solve the above-mentioned technical problems, existing manufacturers reduce ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/20
CPCG06F3/0412G09G3/20G09G2310/0267G09G2310/0286G09G2354/00G11C19/28G11C19/287G06F3/04184G02F1/13338G06F3/0416G09G3/2096
Inventor 马磊杨东
Owner BOE TECH GRP CO LTD
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