Compensation method and compensation system for AMOLED pixel luminance

Abstract

The invention provides a compensation method and a compensation system for AMOLED pixel luminance. The compensation method comprises the following steps that 1) a pixel is closed, the light intensity of ambient light is detected, and the first light intensity value L1 is obtained; 2) a luminance signal of the pixel is set to be a reference signal Dref, the pixel emits light under the reference signal Dref, the second light intensity value L2 is detected and obtained, and the actual light intensity value L3 of the pixel satisfies the equation that L3=L2-L1; 3) the actual light intensity value L3 is compared with the reference signal Dref, a corresponding compensation signal Dcom is generated, and compensation is carried out on the luminance signal of the pixel. The compensation system comprises a detection module, a comparing module and a compensation module. According to the compensation method and the compensation system for the AMOLED pixel luminance, the method of optical feedback and signal compensation is adopted for improving uniformity of the AMOLED displaying luminance, and therefore quality of image display is improved. The compensation method and the compensation system for the AMOLED pixel luminance are simple, and industrialization is easily achieved.

Description

technical field [0001] The invention relates to an OLED compensation method and a compensation system, in particular to a compensation method and a compensation system for AMOLED pixel brightness. Background technique [0002] OLED (Organic Light-Emitting Diode, Organic Light-Emitting Diode) displays images through light emitted during the recombination of electrons and holes in organic materials. The display using OLED is an emerging flat panel display device, because of its simple preparation process, low cost, fast response, easy to realize color display and large-screen display, low power consumption, easy to achieve matching with integrated circuit drivers, and luminous brightness The advantages of high temperature, wide range of working temperature, light and thin volume, and easy realization of flexible display make it have broad application prospects. [0003] According to different driving methods, OLED can be divided into two types: Passive Matrix Organic Light Em...

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Problems solved by technology

[0007] In view of the shortcomings of the prior art described above, the purpose of the present invention is to provide a compensation method and compensation system for AMOLED pixel brightness, which are used to solve the problem of uneven threshold voltage of the driving tube and carrier mobility in the AMOLED in the prior art. The problem of uneven luminance caused by changes

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