Pixel driving circuit, array substrate and display device

A pixel driving circuit and technology for driving transistors, applied in the field of pixel driving circuits, array substrates and display devices, capable of solving problems such as differences in display brightness of display devices, inconsistent overdrive voltages of driving transistors, etc.

Inactive Publication Date: 2013-08-07
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, during the research and development process, the inventors found that the prior art has at least the following defects: due to process limitations or drift phenomena caused by long-term pressurization and high temperature, the threshold voltage Vthn of each dr

Method used

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  • Pixel driving circuit, array substrate and display device
  • Pixel driving circuit, array substrate and display device
  • Pixel driving circuit, array substrate and display device

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Embodiment Construction

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0032] An embodiment of the present invention provides a pixel driving circuit, such as figure 2 As shown, it includes a driving transistor M1 and an organic light emitting diode OLED, a charge compensation module, and a light emission control module, wherein,

[0033] The charging compensation module is used to receive the data voltage signal Vdata under the control of the scanning voltage signal Vscan, charge the driving transistor M1, and compensate the th...

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Abstract

The embodiment of the invention discloses a pixel driving circuit, an array substrate and a display device, and relates to the technical field of display devices. The threshold voltage of a driving transistor is compensated, so that the ununiformity problem of threshold voltage is solved, and the display effect of the display device is improved. The pixel driving circuit according to the embodiment of the invention comprises a driving transistor and an organic light emitting diode, and the pixel driving circuit further comprises a charging compensation module and a light emitting control module, wherein the charging compensation module is used for receiving data voltage signals under the control of scanning voltage signals, charging the driving transistor and compensating the threshold voltage of the driving transistor; and the light emitting control module is used for receiving a reference voltage and a power supply voltage under the control of light emitting control signals and controlling the organic light emitting diode to emit light.

Description

technical field [0001] The present invention relates to the technical field of display devices, in particular to a pixel driving circuit, an array substrate and a display device. Background technique [0002] With the continuous advancement of technology, OLED (English: Organic Light-Emitting Diode, Chinese: Organic Light-Emitting Diode), as a light-emitting device, is more and more well-known and widely used in high-performance display devices. OLED has broad application prospects due to its advantages such as simple process preparation, high luminous brightness, fast response speed, low cost, and moderate working temperature. [0003] According to different driving methods, OLED can be divided into two types: passive matrix drive (English: Passive Matrix Organic Light Emission Display, abbreviation: PMOLED) and active matrix drive (English: Active Matrix Organic Light Emission Display, abbreviation: AMOLED). . The passive matrix driving process is simple and the cost is ...

Claims

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Application Information

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IPC IPC(8): G09G3/32
CPCG09G3/3233G09G2300/0861G09G3/3258G09G2300/0819G09G2320/045
Inventor 盖翠丽宋丹娜吴仲远
Owner BOE TECH GRP CO LTD
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