AMOLED display panel brightness compensation method and device

A display panel and brightness compensation technology, applied in static indicators, instruments, etc., can solve problems such as brightness attenuation of AMOLED display panels, and achieve normal display, simple steps, and simple structure

Active Publication Date: 2017-10-20
SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention provides an AMOLED display panel brightness compensation device to solve the problem of AMOLED display panel brightness attenuation

Method used

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  • AMOLED display panel brightness compensation method and device
  • AMOLED display panel brightness compensation method and device
  • AMOLED display panel brightness compensation method and device

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Embodiment Construction

[0042] The following descriptions of the various embodiments refer to the accompanying drawings to illustrate specific embodiments in which the invention may be practiced. The directional terms mentioned in the present invention, such as [top], [bottom], [front], [back], [left], [right], [inside], [outside], [side], etc., are only for reference The orientation of the attached schema. Therefore, the directional terms used are used to illustrate and understand the present invention, but not to limit the present invention. In the figures, structurally similar elements are denoted by the same reference numerals.

[0043] The present invention aims at problems such as the brightness compensation device of the existing AMOLED display panel, because a circuit or a sensor for detecting the luminous state needs to be installed in the display panel, and only the aging state of the TFT can be determined, and the aging state of the OLED light-emitting device cannot be determined. The st...

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Abstract

The invention provides an AMOLED display panel brightness compensation method and device. The method is concise in step. The device is simple in structure and easy to operate. The aging test is performed on a display panel in advance and the attenuation law of the sub-pixel brightness along with grayscale and time is obtained, the compensation data are calculated and a dynamic compensation table is generated; and the inputted original grayscale is corrected in a correction module according to the dynamic compensation table, the sub-pixel brightness is compensated and the display panel is enabled to be normal in display. The beneficial effects are that aging of the TFT in the displayer and attenuation of the OLED luminous efficiency can be compensated without arranging the circuit or the sensor for detecting the luminous state in the display panel.

Description

technical field [0001] The invention relates to panel display technology, in particular to a brightness compensation method and device for an AMOLED display panel. Background technique [0002] At present, Organic Light-Emitting Diode (OLED) is an emerging application technology of flat-panel displays. Due to its self-luminous characteristics, no need for backlight, energy saving, and large viewing angle, it has been used in mobile phones, digital cameras, It is widely used in terminals such as tablet PCs and televisions. [0003] According to the driving method, OLED display devices can be divided into two categories: passive matrix OLED (PMOLED) and active matrix OLED (AMOLED), namely direct addressing and thin film transistor (Thin Film Transistor, TFT) There are two types of matrix addressing. Among them, AMOLED has pixels arranged in an array, belongs to the active display type, has high luminous efficiency, and is usually used as a high-definition large-size display ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/3225
CPCG09G3/3225G09G2320/0626G09G3/3208G09G2320/0233G09G2320/0271G09G2320/0285G09G2320/043G09G2320/045G09G2320/048G09G3/2007G09G2330/12
Inventor 邓宇帆许神贤
Owner SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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