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Pixel circuit, driving method thereof and display panel

A technology of pixel circuits and driving transistors, applied in static indicators, instruments, etc., can solve the problems of low brightness of the first frame, picture smear, poor picture display effect, etc.

Pending Publication Date: 2022-05-31
WUHAN TIANMA MICRO ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the present invention provides a pixel circuit, its driving method, and a display panel to solve the problem of low brightness in the first frame when switching between black and white pictures in the related art, which causes smearing of the picture, and poor picture display effect. bad question

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  • Pixel circuit, driving method thereof and display panel
  • Pixel circuit, driving method thereof and display panel
  • Pixel circuit, driving method thereof and display panel

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Embodiment Construction

[0029] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangement of components and steps, the numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the invention unless specifically stated otherwise.

[0030] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

[0031] Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods, and apparatus should be considered part of the specification.

[0032] In all examples shown and discussed herein, any specific values ​​should be construed as illustrative only and not limiting. Accordingly, other instances of the exemplary embodiment may hav...

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PUM

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Abstract

The invention discloses a pixel circuit and a driving method thereof, and a display panel, and belongs to the technical field of display, the pixel circuit at least comprises a driving transistor, a data write-in module, a first reset module, a reset control module and a light emitting device; before the light-emitting device emits light, the data write-in module provides data voltage signals for the driving transistor for at least two times, the first reset module provides first reset signals for the driving transistor for at least two times when the reset control module is switched on, and the data write-in module provides the data voltage signals for the driving transistor for one time. The first reset module provides a first reset signal for the driving transistor, and the two processes are carried out alternately. The driving method of the pixel circuit is applied to the pixel circuit for driving work. The display panel comprises the pixel circuit. The difference between the brightness of the first frame and the brightness of other frames can be avoided, and the smear phenomenon is effectively improved.

Description

technical field [0001] The present invention relates to the field of display technology, and more particularly, to a pixel circuit, a driving method thereof, and a display panel. Background technique [0002] Organic Light Emitting Diode (OLED) is currently one of the hotspots in the field of flat panel display research. Compared with liquid crystal displays, OLED has the advantages of low energy consumption, low production cost, self-illumination, wide viewing angle and fast response speed. At present, OLED has begun to replace traditional liquid crystal displays ( Liquid Crystal Display, LCD). Among them, the design of the driving circuit is the key technology to realize the display function. The driving circuit can generally include a scanning driving circuit, a light-emitting control circuit, a data driving circuit, a pixel circuit, etc., among which the pixel circuit design is the core technical content of the OLED display and has important research significance. [...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/3233
CPCG09G3/3233G09G2320/0257
Inventor 黄锐啸张娣
Owner WUHAN TIANMA MICRO ELECTRONICS CO LTD