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Pixel circuit and driving method thereof, array substrate, display device

A pixel circuit and driving method technology, which is applied in the display field, can solve the problems of lack of overshoot voltage accuracy and TFT array uniformity, and achieve the effect of avoiding low overshoot voltage accuracy

Active Publication Date: 2021-02-02
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

How much the overshoot voltage needs to be charged depends on the electron mobility of the switch tube (TFT). Generally speaking, the uniformity of the TFT array cannot reach a high standard, resulting in the accuracy of the overshoot voltage of each pixel electrode. lacking

Method used

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  • Pixel circuit and driving method thereof, array substrate, display device
  • Pixel circuit and driving method thereof, array substrate, display device

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Embodiment Construction

[0031] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the following will clearly and completely describe the technical solutions of the embodiments of the present invention in conjunction with the drawings of the embodiments of the present invention. Apparently, the described embodiments are some, not all, embodiments of the present invention. Based on the described embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] Unless otherwise defined, the technical terms or scientific terms used in the present disclosure shall have the usual meanings understood by those skilled in the art to which the present invention belongs. "First", "second" and similar words used in the present disclosure do not indicate any order, quantity or importance, but are only use...

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Abstract

The invention discloses a pixel circuit, comprising: a pixel electrode, which is located in a pixel unit defined by a gate line and a data line; a voltage follower, whose output terminal voltage changes linearly following the input terminal voltage, and the input terminal is connected to the the pixel electrode; a switch element, the control end of which is connected to the gate line, and the first end thereof is connected to the output end of the voltage follower; and, a readout signal line, which is connected to the second end of the switch element . The invention also discloses a driving method of the pixel circuit, an array substrate and a display device.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a pixel circuit and its driving method, an array substrate, and a display device. Background technique [0002] At present, in naked-eye three-dimensional (3D) display, in order to obtain a more delicate viewing experience, high resolution is required. The 3D display, whether it is dual display, multi-display, or light field display, has extremely high requirements for resolution. 3D displays typically require twice or more the number of pixels than two-dimensional (2D) displays. The problem brought about by this is that the scanning of all pixels is completed within a fixed time (generally 60Hz, that is, 16.7ms), and the turn-on time of each row is very short, which easily leads to insufficient charging rate. [0003] Since the charging time of the pixel is not enough to charge the potential of the pixel electrode to the corresponding potential, overshoot technology i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/20
CPCG09G3/20
Inventor 丁小梁王海生刘英明
Owner BOE TECH GRP CO LTD