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AMOLED (Active Matrix/Organic Light Emitting Diode) pixel driving circuit and AMOLED pixel driving method

A pixel drive circuit and potential technology, which is applied to instruments, static indicators, etc., can solve problems such as the complexity of the drive circuit structure, achieve the effects of improving display uniformity, eliminating the impact of display brightness, and saving costs

Inactive Publication Date: 2017-10-03
SHENZHEN 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

[0005] The purpose of the present invention is to provide an AMOLED pixel driving circuit and an AMOLED pixel driving method, which solves the problem of complex structure of the existing driving circuit, and simultaneously eliminates the influence of the threshold voltage of the driving tube on the driving current

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  • AMOLED (Active Matrix/Organic Light Emitting Diode) pixel driving circuit and AMOLED pixel driving method
  • AMOLED (Active Matrix/Organic Light Emitting Diode) pixel driving circuit and AMOLED pixel driving method
  • AMOLED (Active Matrix/Organic Light Emitting Diode) pixel driving circuit and AMOLED pixel driving method

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Embodiment Construction

[0055] In order to further illustrate the technical means adopted by the present invention and its effects, the following describes in detail in conjunction with preferred embodiments of the present invention and accompanying drawings. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0056] see figure 2 , the present invention provides an AMOLED pixel drive circuit, the AMOLED pixel drive circuit adopts a 6T1C structure, including: 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, a sixth thin film transistor T6, a capacitor C and an organic light emitting diode D1;

[0057] The gate of ...

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Abstract

The present invention provides an AMOLED (Active Matrix / Organic Light Emitting Diode) pixel driving circuit and an AMOLED (Active Matrix / Organic Light Emitting Diode) pixel driving method. According to the AMOLED pixel driving circuit, a 6T1C structure is used in cooperation with a specific driving time sequence, so that the threshold voltage of a driving tube can be effectively compensated, and therefore, 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 images can be improved. The circuit is simple in structure and can assist in improving efficiency.

Description

technical field [0001] The invention relates to the field of display technology, in particular to an AMOLED pixel driving circuit and an AMOLED pixel driving method. Background technique [0002] The active matrix organic light emitting diode (Active Matrix Organic Light Emitting Diode, AMOLED) can emit light is driven by the current generated by the thin film transistor (Thin Film Transistor, TFT) in the saturation state, the traditional AMOLED drive circuit is often a 2T1C drive circuit . see figure 1 , the 2T1C circuit includes two TFTs and a capacitor (Capacitor), wherein, T1 is the driving tube of the pixel circuit, T2 is the switching tube, the scanning line Gate turns on the switching tube T2, and the data voltage Date charges and discharges the storage capacitor Cst. The switch tube T2 is turned off, the voltage stored on the capacitor keeps the drive tube T1 turned on, and the conduction current makes the OLED emit light. To achieve a stable display, it is necess...

Claims

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Application Information

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IPC IPC(8): G09G3/3233G09G3/3266
CPCG09G3/3233G09G3/3266
Inventor 陈小龙
Owner SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD