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Pixel driving circuit and display panel

A pixel drive circuit and storage capacitor technology, applied in static indicators, nonlinear optics, instruments, etc., can solve the problem of 1T2C circuit not being applicable

Active Publication Date: 2020-09-11
WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

When the 1T2C circuit is working, since the driving switch T10 can only be a single type of TFT, and each type of TFT has its advantages and disadvantages, the 1T2C circuit is not suitable for the requirements of dynamic frame rate technology, so it is necessary to design a new pixel driver circuit to adapt to dynamic frame rate technology

Method used

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  • Pixel driving circuit and display panel
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  • Pixel driving circuit and display panel

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Embodiment Construction

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Apparently, the described embodiments are only some of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of this application.

[0024] In all the embodiments of the present application, two electrodes other than the gate of the transistor are distinguished, one of which is called the source, and the other is called the drain. Since the source and drain of a transistor are symmetrical, its source and drain are interchangeable. According to the form in the accompanying drawings, it is stipulated that the middle terminal of the transistor is the gate, the signal input terminal is the source terminal, and th...

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Abstract

The embodiment of the invention provides a pixel driving circuit and a display panel. The pixel driving circuit adopts a 2T2C circuit structure. The first transistor T1 or the second transistor T2 iscontrolled to keep normally open through a normal signal; the transistor of which the grid electrode is connected with a normal signal and the normally open transistor is connected with a common end;and a row scanning signal and a data signal are accessed to the other transistor to serve as a driving switch, so that a liquid crystal capacitor and a storage capacitor are charged, the pixel drivingcircuit can alternately work at a low frequency or a high frequency through the first transistor T1 and the second transistor T2, and different working requirements are met.

Description

technical field [0001] The present application relates to the field of display technology, in particular to a pixel driving circuit and a display panel. Background technique [0002] The current display technology requirements are applicable to both high frequency and low frequency, so that the display panel not only has the advantages of smooth picture quality brought by high frequency, but also has the advantage of low power consumption brought by low frequency. Therefore, dynamic frame rate technology Emerged as the times require, this technology can adjust the refresh rate of the display panel in real time, thereby meeting the display requirements of ultra-low frequency and ultra-high frequency at the same time. For low-frequency display requirements, since the holding time of each frame in the low-frequency state is extended to dozens of times of the original, it is required that the display panel has a strong image retention capability; for high-frequency display requi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/36G02F1/1362
CPCG09G3/3648G02F1/136213G02F1/13624
Inventor 曹海明管延庆
Owner WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
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