Pixel driving circuit and driving method

A pixel drive circuit and potential technology, applied in the direction of instruments, static indicators, etc., can solve problems such as complex drive circuit structure, achieve the effect of improving display uniformity, simplifying the structure, and eliminating the influence of display brightness

Inactive Publication Date: 2017-10-03
SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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  • Abstract
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Problems solved by technology

[0006] The purpose of the present invention is to provide a pixel driving circuit and a pixel driving method, which can solve the problem of complex structure of the existing driving circuit, and at the same time eliminate the influence of the threshold voltage of the driving tube on the driving current

Method used

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  • Pixel driving circuit and driving method

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Embodiment Construction

[0057] In order to further explain the technical means adopted by the present invention and its effects, the following describes in detail the preferred embodiments of the present invention and the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0058] See figure 2 , The present invention provides a pixel drive circuit which adopts a 6T1C structure and includes: a first thin film transistor T1, a second thin film transistor T2, a third thin film transistor T3, a fourth thin film transistor T4, a fifth thin film transistor T5, The sixth thin film transistor T6, the capacitor C and the organic light emitting diode D1;

[0059] The gate of the first thin film transistor T1 ...

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Abstract

The invention provides a pixel driving circuit and a pixel driving method. According to the pixel driving circuit, a 6T1C structure is used in cooperation with a specific driving time sequence, and therefore, the threshold voltage of a driving tube can be effectively compensated, current flowing through a light emitting device is not affected by the threshold voltage of the driving tube, the display uniformity of a panel can be improved, and the display effect of pictures can be improved. The structure of the circuit is simple, and therefore, efficiency can be improved.

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. Background technique [0002] Organic light emitting display (AMOLED) is one of the hot spots in the field of flat panel display research today. Compared with liquid crystal display (LCD), organic light emitting diode (OLED) has low energy consumption, low production cost, self-luminescence, wide viewing angle and fast response speed. Advantages. At present, OLEDs have begun to replace traditional LCD displays in the display fields of mobile phones, PDAs, and digital cameras. Among them, pixel drive is the core technical content of AMOLED displays, which has important research significance. [0003] The traditional AMOLED pixel drive circuit is often a 2T1C drive circuit. See figure 1 The 2T1C circuit includes two TFTs and a capacitor (Capacitor), where T1 is the drive tube of the pixel circuit, T2 is the switch tube, the scan lin...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/3233G09G3/3266
CPCG09G3/3233G09G3/3266
Inventor 陈小龙
Owner SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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