Luminance compensation optimization mode and pre-stage device

Abstract

The invention relates to a luminance compensation optimization mode and a pre-stage device. The method comprises steps: a luminance acquisition device is provided; a to-be-compensated panel is photographed as a luminance compensation reference picture, wherein the to-be-compensated panel is provided with multiple first pixel units, the luminance acquisition device is provided with multiple second pixel units, the luminance compensation reference picture is composed of multiple photographing units, each photographing unit is composed of the multiple second pixel units, and the second pixel unit is larger than the first pixel unit; four second pixel units at four endpoints of the photographing units are adopted as a luminance reference, through a specific computing mode, multiple luminance compensation data of other second pixel units in the photographing units are obtained; and with the luminance compensation data, luminance compensation is carried out on the first pixel units corresponding to each photographing unit.

Description

technical field [0001] The present invention relates to an optimization method and previous stage equipment of brightness compensation, in particular to an optimization method and previous stage equipment for achieving brightness compensation by changing the resolution of a camera. Background technique [0002] Flat-panel display devices have many advantages such as thin body, power saving, and no radiation, and have been widely used. Existing flat panel display devices mainly include liquid crystal display devices (Liquid Crystal Display, LCD) and organic light emitting diode display devices (Organic Light Emitting Display, OLED). Organic light-emitting diode display devices have excellent characteristics such as self-illumination, no need for backlight, high contrast, thin thickness, wide viewing angle, fast response speed, can be used for flexible panels, wide operating temperature range, and relatively simple structure and manufacturing process. It is considered as an e...

AI Technical Summary

Problems solved by technology

[0007] At present, this method is relatively simple and easy, but the premise of calculating the brightness compensation data is to assume that the panel to be compensated is already a standard Gamma2. To be accurately controlled, and the center point to be compensated (mura) generally cannot be eliminated, so it will be easier to affect the final effect of Demura

[0008] At the same time, by default, the calculation will be performed for each area, and in order to ensure the Demura effect, the minimum unit of the area to be compensated should not be too large (generally 8*8 pixel units), so the final brightness compensation data of the entire panel to be compensated The amount will be larger, so the capacity of the external memory (Demura flash) will be larger, and the internal RAM of the processing IC on the driver board will also be larger, which will also bring limitations on data transmission time and rate.

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