Gate drive circuit and display device

A gate drive circuit, effective level technology, applied in static indicators, electrical digital data processing, instruments, etc., can solve the problems of gate drive circuit layout difficulty, restrict the narrowing of the frame width, etc. Product cost reduction and production cost saving effect

CN105741739AActive Publication Date: 2016-07-06BOE TECH GRP CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2016-07-06

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Abstract

The invention relates to a gate drive circuit and a display device. The gate drive circuit comprises plurality stages of shift register units which output gate driving signals stage by stage when driven by clock signals, and each shift register unit has a first node. Each shift register unit comprises a latching module which remains the first node at active level within a preset time corresponding to the time for outputting gate driving signals. The first nodes of at least two stages of the shift register units are each connected with a touch scan unit, and the touch scan units are connected with touch control enabling ends to output touch scan signals when the first nodes are at active level and the touch control enabling ends are at active level. The display device is realized based on the gate drive circuit. The circuit is simplified, signal wires are effectively reduced, and narrow frame design of a display device can be realized.
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Description

technical field

[0001] The invention relates to the field of display technology, in particular to a gate drive circuit and a display device. Background technique

[0002] In the prior art, a multi-level shift register unit for display scanning and a multi-level shift register unit for touch scanning are usually provided in the gate drive circuit of a touch display device to provide pixel units and touch The unit provides row-to-scan signals. Therefore, in the gate drive circuit, it is not only necessary to set up separate circuit structures for display scan and touch scan, but also to set up connection lines for various input and output signals, which makes the layout of the gate drive circuit difficult and restricts the narrow frame width. change. Contents of the invention

[0003] Aiming at the defects in the prior art, the present invention provides a gate drive circuit and a display device, which can reduce the layout space of the gate drive circuit in the touch disp...

Examples

Embodiment Construction

[0051] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, 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 creative efforts fall within the protection scope of the present invention.

[0052] figure 1 It is a structural block diagram of a gate driving circuit provided in an embodiment of the present invention. see figure 1 , the gate drive circuit includes several stages of shift register units 1 (such as figure 1 The shift register units of N-2, N-1, N and N+1 stages shown and their output terminals Gate_N-2, Gate_N-1, Gate_...