Display device, correction system, forming device, determining device and method

Abstract

The present invention relates to a display device, a correction system, a forming device, a determining device and method. Part of pixels contained in a correction region including a nonuniform brightness region or the nonuniform brightness region and peripheral region thereof are selected as adjustment correction pixels, and gray level value correction amount of the adjustment correction pixel is different from that of the pixels apart from the adjustment correction pixels in the correction region, so as to only correct by a brightness value less than one gray level of display image data (or a brightness value equivalent to a gray level value of the display image data which fractional part is not zero), namely, the brightness values of all pixels in the correction region are all corrected. Thereby, the nonuniform brightness of the display device can be corrected exactly.

Description

technical field [0001] The present invention relates to a technique for correcting brightness unevenness of a display screen of a display device. Background technique [0002] In image display devices such as liquid crystal display devices, plasma displays, and organic EL (Electro-Luminescence: electroluminescent) displays, due to various reasons in the manufacturing process, the display brightness on the display screen may locally become darker than the desired brightness. Or bright brightness uneven. [0003] There are several types of brightness unevenness depending on their shape, and typical ones are stripe unevenness in which unevenness in brightness occurs in stripes on a display screen and spot unevenness in which unevenness in brightness locally occurs in spots. [0004] For example, in the manufacturing process of small high-definition liquid crystal panels, when amorphous silicon (amorphous silicon) is deposited on a glass substrate, the amorphous silicon with lo...

AI Technical Summary

Problems solved by technology

[0004] For example, in the manufacturing process of small high-definition liquid crystal panels, when amorphous silicon (amorphous silicon) is deposited on a glass substrate, the amorphous silicon with low mobility is crystallized by laser irradiation to form polycrystalline silicon with high mobility ( poly-silicon), if the intensity distribution of the laser is uneven, then the characteristics of the polysilicon will be uneven along the scanning direction of the laser, resulting in the above-mentioned stripe unevenness

In addition, various parasitic capacitances exist in the display device, and the capacitance value of these parasitic capacitances varies according to the deviation of these lines such as each signal line, which causes the above-mentioned stripe unevenness.

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