Driving method, pixel circuit and display panel

A driving method and technology of pixel circuit, applied in the field of driving method, pixel circuit and display panel, can solve the problems of flicker, color change, lowering the refresh rate of display panel, etc., and achieve the effect of eliminating color change, eliminating flicker and improving average brightness

Pending Publication Date: 2021-08-27
GIGADISPLAY SEMICON CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the refresh rate of the display panel is reduced, the leakage of the pixel circuit will cause problems such as flicker and color change that are detectable by the naked eye.

Method used

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  • Driving method, pixel circuit and display panel
  • Driving method, pixel circuit and display panel
  • Driving method, pixel circuit and display panel

Examples

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Embodiment Construction

[0027] The invention will be described in more detail below with reference to the accompanying drawings. In the various figures, identical elements are indicated with similar reference numerals. For the sake of clarity, various parts in the drawings have not been drawn to scale. Also, some well-known parts may not be shown in the drawings.

[0028] In the following, many specific details of the present invention are described, such as device structures, materials, dimensions, processing techniques and techniques, for a clearer understanding of the present invention. However, the invention may be practiced without these specific details, as will be understood by those skilled in the art.

[0029] It should be understood that the connection / coupling of A and B in the embodiment of the present application means that A and B may be connected in series or in parallel, or A and B may be connected through other devices, which is not limited in the embodiment of the present applicat...

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PUM

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Abstract

The invention discloses a driving method, a pixel circuit and a display panel. The pixel circuit comprises a data write-in unit, wherein the on and off of the data write-in unit are controlled by a scanning signal; a storage unit which is used for receiving the data voltage through the data writing unit and storing the data voltage; a driving control unit which is used for driving the light-emitting element according to the power supply voltage and the stored data voltage in the turn-off stage of the data writing unit, so the light-emitting element has the driving voltage or the driving current; a dimming module which is used for providing a current path from the driving control unit to the light-emitting element, wherein the on and off of the current path are controlled by a pulse width modulation signal, and in a frame period, the change trend of the duty ratio of the pulse width modulation signal is opposite to the change trend of the driving voltage or the driving current. The pixel circuit can improve the average brightness so as to improve the image quality.

Description

technical field [0001] The present invention relates to the field of display technology, and more specifically, to a driving method, a pixel circuit and a display panel. Background technique [0002] With the development of science and technology, display devices are used in various fields, and people have higher and higher requirements for display devices, for example, the stability of image quality and low power consumption of display devices are required. [0003] A display panel and a driving circuit are usually integrated in a terminal of a display device, and the display panel is formed by a pixel array including a plurality of pixel circuits. Due to the diversification of functions of the terminal of the display device, its power consumption is also increasing. Among the power consumption of the display device, the power consumption of the driving circuit accounts for a very large proportion. In order to reduce the power consumption of the driving circuit, it is com...

Claims

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Application Information

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IPC IPC(8): G09G3/20
CPCG09G3/2003G09G3/2022G09G3/2074G09G2330/021
Inventor肖本懿金辉王凯
OwnerGIGADISPLAY SEMICON CO LTD