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Pixel circuit, display panel and drive method thereof

A technology for pixel circuits and display panels, applied in static indicators, instruments, etc., can solve the problems of driving transistor threshold voltage deviation, uneven brightness of organic light-emitting diodes, etc., achieve accurate threshold voltage writing, simplify design, and improve charging. rate effect

Inactive Publication Date: 2018-08-24
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Due to the limitation of manufacturing process precision, the threshold voltage of the drive transistor of different pixel units will deviate, which will lead to uneven luminance of organic light emitting diodes in different pixel units

Method used

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

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Embodiment Construction

[0050] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0051] As an aspect of the present invention, a pixel circuit is provided, wherein the pixel circuit includes a drive transistor T1, a threshold storage module 110, a threshold storage control module 120, a data storage module 130, a data writing control module 140, and an isolation control module 150, a lighting control module 160 and a light emitting diode OLED.

[0052] The gate of the driving transistor T1 is electrically connected to the first terminal A of the threshold storage module 110, the first pole of the driving transistor T1 is electrically connected to the high-level signal terminal ELVdd and the first terminal of the data storage module 130, and ...

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Abstract

The present invention provides a pixel circuit. The pixel circuit comprises a drive transistor, a threshold value storage module, a threshold value storage control module, a data storage module, a data writing-in control module, an isolation control module, a luminescence control module and a light-emitting diode. The threshold value storage module is configured to store a voltage written throughthe threshold value storage control module and a threshold voltage of the drive transistor; the data storage module is configured to store a data voltage written through the data writing-in control module; a control end of the isolation control module is electrically connected with a control end of the luminescence control module, and when the control end of the isolation control module receives first luminescence control signals, a first end of the isolation control module communicates with a second end of the isolation control module. The present invention further provides a display panel and a drive method thereof. The display panel has few signal lines so as to arrange more pixel units therein so as to improve the resolution ratio of the display panel.

Description

technical field [0001] The present invention relates to the field of display devices, in particular to a pixel circuit, a display panel including the pixel circuit, and a driving method for the display panel. Background technique [0002] With the development of display technology, organic light emitting diode display panels appear. The organic light emitting diode display panel includes a plurality of pixel units, and each pixel unit is provided with an organic light emitting diode and a pixel circuit for driving the organic light emitting diode to emit light. [0003] Generally, a pixel circuit for driving an OLED to emit light includes a driving transistor, a switching transistor and a storage capacitor. Wherein, the storage capacitor is used to store the data voltage in the data writing sub-phase. [0004] Due to the limitation of manufacturing process precision, the threshold voltages of the driving transistors of different pixel units will deviate, thus resulting in ...

Claims

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Application Information

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IPC IPC(8): G09G3/3225
CPCG09G3/3225G09G2300/0819G09G2300/0852G09G2300/0861G09G2320/045G09G3/3233G09G3/3258G09G2300/0842G09G2310/0202G09G2320/0233
Inventor 殷新社
Owner BOE TECH GRP CO LTD
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