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Pixel circuit, driving method of pixel circuit, organic light emitting display panel and display device

A pixel circuit and organic technology, applied in the field of organic light-emitting display panels and display devices, can solve the problems of affecting image display effect and uneven display brightness

Active Publication Date: 2014-12-31
BOE TECH GRP CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the process and device aging, the threshold voltage (Vth) of the driving thin film transistor of each pixel will drift, which will cause the current flowing through each pixel OLED to change due to the change of the threshold voltage, making the display brightness not stable. uniform, thus affecting the display effect of the entire image

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  • Pixel circuit, driving method of pixel circuit, organic light emitting display panel and display device
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  • Pixel circuit, driving method of pixel circuit, organic light emitting display panel and display device

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Embodiment Construction

[0086] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the following will clearly and completely describe the technical solutions of the embodiments of the present invention in conjunction with the drawings of the embodiments of the present invention. Apparently, the described embodiments are some, not all, embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the described embodiments of the present invention belong to the protection scope of the present invention.

[0087] Unless otherwise defined, the technical terms or scientific terms used herein shall have the usual meanings understood by those skilled in the art to which the present invention belongs. "First", "second" and similar words used in the patent application specification and claims of the present invention do not indicate any order, quantity or importance, but are only used to distinguis...

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Abstract

The invention provides a pixel circuit, a driving method of a pixel circuit, an organic light emitting display panel and a display device. Through the arrangement of a touch detection module and a display driving module realizing the multiplexing of a first scanning line and a second scanning line, the influence of the threshold value of a transistor on light emitting driving signals can be eliminated, the brightness uniformity of the organic light emitting display panel is improved, and the image display effect of the display device is improved. Meanwhile, the pixel circuit provided by the embodiment of the invention has the advantages that through adopting the arrangement of the circuit structure controlling the signal multiplexing, the display driving is realized, and meanwhile, the touch control detection can be realized, so the high-efficiency integration of the display driving and the touch control detection can be realized.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a pixel circuit and a driving method thereof, an organic light-emitting display panel and a display device. Background technique [0002] Organic light-emitting display (AMOLED) is one of the hotspots in the field of flat panel display research. Compared with liquid crystal display, organic light-emitting diode (OLED) has the advantages of low energy consumption, low production cost, self-illumination, wide viewing angle and fast response speed. , OLED has begun to replace the traditional liquid crystal display (LCD) in display fields such as mobile phones, PDAs, and digital cameras. Pixel drive circuit design is the core technical content of AMOLED display, which has important research significance. [0003] Unlike TFT-LCD, which uses a stable voltage to control brightness, OLED is current-driven and requires a stable current to control light emission. Due to the proc...

Claims

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Application Information

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IPC IPC(8): G09G3/32G09G3/3233
CPCG06F3/0412G06F3/04166G06F3/042G09G3/3233G09G2300/0819G09G2300/0842G09G2300/0861G09G3/32G09G3/3208G09G2320/0233
Inventor 杨盛际
Owner BOE TECH GRP CO LTD
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