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Pixel circuit and driving method thereof, organic light-emitting display panel and display device

A pixel circuit and drive transistor technology, applied in static indicators, instruments, etc., can solve problems affecting the brightness uniformity and brightness constancy of organic light-emitting diode displays, so as to improve image uniformity, ensure uniformity and constancy, The effect of slowing down the decay rate

Active Publication Date: 2015-12-02
BOE TECH GRP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In this way, the brightness uniformity and brightness constancy of the organic light-emitting diode display will be affected

Method used

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  • Pixel circuit and driving method thereof, organic light-emitting display panel and display device
  • Pixel circuit and driving method thereof, organic light-emitting display panel and display device
  • Pixel circuit and driving method thereof, organic light-emitting display panel and display device

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Embodiment Construction

[0044] 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. Based on the described embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0045]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 o...

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Abstract

The present disclosure relates to the field of organic light-emitting display, and provides a pixel circuit, a driving method thereof, an organic light-emitting display panel and a display apparatus, comprising a driving transistor, a first storage capacitor, a collecting unit, a writing unit and a light-emitting unit; wherein, the collecting unit is used. for collecting the threshold voltage of the driving transistor and storing the threshold voltage into the first storage capacitor, under the control of the first scan signal; the writing unit is used for storing the data voltage inputted from the input terminal for the data voltage under the control of the second scan signal; and the light-emitting unit is used for emitting lights, driven by the data voltage and a voltage inputted from the input terminal for the controllable low voltage, under the control of the light-emitting control signal. Thus an organic light-emitting device is not affected by the threshold voltage shift of the driving transistor, which may enhance the image uniformity of the organic light-emitting display panel effectively, slow down the decay speed of an organic light-emitting device and ensure the uniformity and a constancy of brightness of the organic light-emitting display panel.

Description

technical field [0001] The present invention relates to the field of organic light-emitting display, in particular to a pixel circuit and its driving method, an organic light-emitting display panel and a display device. Background technique [0002] Due to the rapid progress of the multimedia society, the technologies of semiconductor devices and display devices have also undergone rapid progress. [0003] As far as the display is concerned, since the Active Matrix Organic Light Emitting Diode (AMOLED) display has no viewing angle limitation, low manufacturing cost, high response speed (about a hundred times higher than that of liquid crystal), power saving, self-illumination, and can be used in portable The machine's DC drive, wide operating temperature range, and light weight can be miniaturized and thinned along with the hardware equipment to meet the characteristic requirements of the display in the multimedia age. Therefore, the active matrix organic light emitting dio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/32
CPCG09G3/3208G09G3/3233G09G2300/0819G09G2300/0852G09G2300/0861G09G2320/0233
Inventor 尹静文吴仲远
Owner BOE TECH GRP CO LTD