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A pixel compensation circuit and oled display device

A compensation circuit and pixel technology, applied in static indicators, instruments, etc., to achieve the effect of high PPI panel design and compressed size

Active Publication Date: 2021-06-25
WUHAN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

That is, due to the layout of the components in the pixel compensation circuits such as 7T1C, 6T1C, and 6T2C, the size of the pixel structure is limited to be further reduced, which in turn limits the improvement of the pixel density (Pixels Per Inch, PPI for short).

Method used

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  • A pixel compensation circuit and oled display device
  • A pixel compensation circuit and oled display device
  • A pixel compensation circuit and oled display device

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Embodiment Construction

[0019] 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 denote the same or similar components or components having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention. Furthermore, the present disclosure repeats reference numerals and / or reference letters in different examples, such repetition is for the purpose of simplicity and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.

[0020] The pixel compensation circuit of the present invention is applied to a pixel structure, the pixel structure includes a reset voltage signal line and a plurality of scanning signal lines, and the pixel compensation circuit includes a fourth transistor an...

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Abstract

The present invention discloses a pixel compensation circuit and an OLED display device. Scanning signals output from the same row of scanning signal lines control at least two thin-film transistors, so that organic light-emitting diodes and storage capacitors are connected to reset voltage signal lines so that they can receive reset voltage signal to reset. And for at least two thin film transistors controlled by the same row scanning signal, the polysilicon wiring of the active layer can be only 2 wirings in the vertical direction, so that the size of the pixel structure in the horizontal direction can be compressed, which is PPI Improve the space provided, which is conducive to the realization of high PPI panel design.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a pixel compensation circuit and an OLED display device. Background technique [0002] In recent years, the rapid development of OLED (Organic Light Emitting Diode, Organic Light Emitting Diode) display technology has promoted the rapid entry of curved surface and flexible display products into the market, and technological updates in related fields are also changing with each passing day. OLED refers to a diode that uses organic semiconductor materials and light-emitting materials to cause light emission through carrier injection and recombination under the drive of an electric field. Due to the advantages of light weight, self-luminescence, wide viewing angle, low driving voltage, high luminous efficiency, low power consumption, and fast response speed, OLED display devices are widely used. In an OLED pixel circuit, the OLED in the pixel circuit can be driven to emit light th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/3266G09G3/3225
CPCG09G3/3266G09G3/3225G09G3/3233
Inventor 王威徐品全
Owner WUHAN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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