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公开(公告)号：US20190213951A1
公开(公告)日：2019-07-11
申请号：US16199470
申请日：2018-11-26
发明人： Jinxiang LI , Yang WANG , Junwei ZHANG , Guanzheng LI
IPC分类号： G09G3/3225 , H01L27/32
CPC分类号： G09G3/3225 , G09G2300/0452 , G09G2320/0233 , G09G2320/0242 , H01L27/3211 , H01L27/3244
摘要： A white balance adjustment method and system for a display screen, and a display apparatus are provided. The white balance adjustment method includes: step S1, causing each pixel of at least a part of pixels of the display screen to display, with a preset grayscale, color images of sub pixels of all colors in the pixel in turn, and measuring chromaticity coordinate values and actual brightness values of the displayed color images; step S2, calculating an actual brightness ratio among actual brightness values of the sub pixels of all colors; calculating a standard brightness ratio among standard brightness values of the sub pixels of all colors when the display screen displays standard white light; and step S3, comparing the actual brightness ratio and the standard brightness ratio in case of the preset grayscale to obtain a comparison result, and adjusting grayscales of the sub pixels of all colors. (FIG. 1)
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公开(公告)号：US20210233477A1
公开(公告)日：2021-07-29
申请号：US17042668
申请日：2020-03-26
发明人： Jinxiang LI , Yang WANG , Chunjie WANG , Xiaochen CUI , Chengyong HE , Xingming WANG
IPC分类号： G09G3/3291 , G09G3/3283
摘要： A display driving circuit, a method of driving a display driving circuit, a display panel, and a display device are provided. The display driving circuit includes a compensation circuit and at least one pixel circuit electrically connected to the compensation circuit. The pixel circuit is configured to receive a data compensation signal and control a current magnitude of a driving current flowing through a light-emitting element according to the data compensation signal, so as to apply an operating voltage to a first terminal of the light-emitting element. The compensation circuit is configured to receive the operating voltage and a data voltage and adjust the data compensation signal according to a difference between the operating voltage and the data voltage.
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公开(公告)号：US20190204729A1
公开(公告)日：2019-07-04
申请号：US16106181
申请日：2018-08-21
发明人： Chengyong HE , Yang WANG , Jun YANG , Xin WANG , Guanzheng LI , Jinxiang LI , Xingming WANG , Peng CAI , Xiaochen CUI , Junwei ZHANG , Can ZHANG , Chunjie WANG
CPC分类号： G03F1/50 , G03F7/2002 , H01L27/1288
摘要： A photomask and an exposure method are provided. The photomask includes a photomask body including a first surface and a second surface opposite to each other; and a first light-transmissive region penetrating through the first surface and the second surface, wherein a light adjustment component is in the first light-transmissive region and configured to converge a first light beam incident onto the first surface to a second light beam emergent from the second surface, and a cross-sectional area of the first light beam sectioned by the first surface is larger than that of the second light beam sectioned by the second surface.
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