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Noise reduction circuit and method and display device

A circuit and noise reduction technology, applied in the field of communication, can solve problems such as high noise and abnormal output

Pending Publication Date: 2022-02-08
CHONGQING KONKA PHOTOELECTRIC TECH RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide a noise reduction circuit and method, and a display device to at least solve the problems in the related art, such as the coupling effect of capacitance in the GOA drive circuit, which leads to abnormal output and large noise.

Method used

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  • Noise reduction circuit and method and display device
  • Noise reduction circuit and method and display device

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Embodiment Construction

[0046] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0047] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The terminology used herein in the description of the present invention is only for the purpose of describing specific embodiments, and is not intended to limit the present invention.

[0048] In this embodiment, a noise reduction circuit is provided, figure 1 It is a ki...

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Abstract

The invention discloses a noise reduction circuit and method and a display device, and the circuit comprises an input circuit, a noise reduction circuit connected with the input circuit in series, and an output circuit connected with the noise reduction circuit in series. The noise reduction circuit comprises a first noise reduction circuit and a second noise reduction circuit connected with the first noise reduction circuit in parallel, the first noise reduction circuit comprises at least two first control circuits, and the at least two first control circuits are connected with the pull-up node. At least one of the at least two first control circuits is connected with an input signal end of the input circuit; the second noise reduction circuit comprises at least two second control circuits, the at least two second control circuits are connected with an output node of the output circuit, and at least one of the at least two second control circuits is connected with a first clock signal end of the input circuit; and the other at least one second control circuit in the at least two second control circuits is used for reducing noise for the output node.

Description

technical field [0001] The present invention relates to the communication field, in particular, to a noise reduction circuit and method, and a display device. Background technique [0002] The gate driver on array (Gate Driver on Array, referred to as GOA) driving circuit is to use the liquid crystal display array manufacturing process to manufacture the gate scanning driving signal circuit on the array substrate to realize the progressive driving and scanning of the pixel units. The GOA drive circuit can not only reduce the welding process of external integrated circuits, improve the integration level, but also increase production capacity and reduce production costs. It is the first choice for small and medium-sized liquid crystal display products (such as mobile phones). [0003] However, in the traditional GOA drive circuit, the threshold voltage (Vth) of the drive transistor is uneven and the capacitive coupling effect in the GOA drive circuit is eliminated, resulting i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/20G09G3/36
CPCG09G3/20G09G3/36
Inventor 孙佳
Owner CHONGQING KONKA PHOTOELECTRIC TECH RES INST CO LTD