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

A pixel driving circuit and a driving circuit technology are applied in the fields of display panels and display devices, pixel driving circuits and driving methods thereof, and can solve the problems of a large number of source-level driving chip channels, improving the physical resolution of the panel, and limiting the compensation speed, etc. Achieve the effect of reducing the number of source-level driver chip channels, improving physical resolution, and improving compensation speed

Active Publication Date: 2019-08-30
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the OLED (Organic Light-Emitting Diode, Organic Light-Emitting Diode) external compensation pixel circuit of the related art, the data line and the sensing line are two independent control lines. More, it is not conducive to improving the physical resolution of the panel and limiting the compensation speed

Method used

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

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Embodiment Construction

[0031] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0032] A pixel driving circuit, a driving method thereof, a display panel and a display device according to embodiments of the present invention will be described below with reference to the accompanying drawings.

[0033] figure 1 is a schematic block diagram of a pixel driving circuit according to an embodiment of the present invention. Such as figure 1 As shown, the pixel driving circuit 100 of the embodiment of the present invention includes: a driving circuit 10 , an energy storage circuit 20 , a data and sensing line 30 ,...

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Abstract

The invention discloses a pixel driving circuit, a driving method of the pixel driving circuit, a display panel and a display device. The pixel driving circuit comprises a drive circuit, an energy storage circuit; a data and sensing line; a first initialization circuit; a second initialization circuit and a data writing circuit, wherein in the display mode, the data and sensing line writes data voltage into the control end of the driving circuit through the data write-in circuit; in the sensing mode, the data and sensing line receives the sensing data output by the driving circuit through thesecond initialization circuit to obtain external compensation value of the drive circuit; therefore, the data lines and the sensing lines are combined, the number of source-level driving chip channelscan be reduced, meanwhile, the accuracy of the obtained external compensation value can be ensured, the physical resolution of the panel can be improved, and the compensation speed can be increased.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a pixel driving circuit and a driving method thereof, a display panel and a display device. Background technique [0002] In the OLED (Organic Light-Emitting Diode, Organic Light-Emitting Diode) external compensation pixel circuit of the related art, the data line and the sensing line are two independent control lines. More, it is not conducive to improving the physical resolution of the panel and limiting the compensation speed. Contents of the invention [0003] The present invention aims to solve one of the technical problems in the related art at least to a certain extent. [0004] Therefore, the first object of the present invention is to propose a pixel driving circuit that combines data lines and sensing lines to reduce the number of source driver chip channels while ensuring the accuracy of external compensation values ​​obtained. [0005] The second object o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/3225
CPCG09G3/3225G09G3/3233G09G2320/0295G09G2300/0842G09G2300/0819G09G2320/045G09G2300/0465G09G2300/0852G09G2310/066
Inventor 李永谦
Owner BOE TECH GRP CO LTD
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