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公开(公告)号：US10600377B2
公开(公告)日：2020-03-24
申请号：US15928539
申请日：2018-03-22
Inventor： Guowei Zha
Abstract: An embodiment of the present application discloses an image display method and device. The method includes: determining a first preset parameter of each partition of a backlight relative to a first frame image when a display request for the first frame image is detected, the preset parameter comprising grayscale and/or backlight brightness; acquiring a second preset parameter of each partition of the backlight relative to a second frame image, the second frame image being a previous frame image of the first frame image; determining a grayscale compensation coefficient of a first frame image according to the first preset parameter and the second preset parameter; determining a backlight coefficient of each partition of the first frame image; and driving the backlight according to the determined backlight coefficient of each partition and driving a display screen according to the grayscale compensation coefficient to display the first frame image.
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Patent Agency Ranking
公开(公告)号：US10459239B2
公开(公告)日：2019-10-29
申请号：US15553564
申请日：2017-07-17
Inventor： Guowei Zha
IPC: G02B27/22 , G02F1/1335 , F21V8/00 , H04N13/312 , H04N13/351
Abstract: A naked-eye stereoscopic display grating, manufacturing method and display device are disclosed. The method includes: preparing a transparent substrate; depositing a metal oxide layer on the transparent substrate; depositing a metal grating layer on the metal oxide layer, wherein, a reflectivity of the metal oxide layer is less than a reflectivity of the metal grating layer; and adopting a photolithography method to etch the metal oxide layer and the metal grating layer in order to expose a portion of the transparent substrate to form a transparent region and a reflective region arranged periodically. Accordingly, the present invention can increase the usage efficiency of the light, decrease a color crosstalk problem and low contrast ratio problem caused by an environment light reflected by the metal grating layer and the light in the panel.
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103.发明授权公开(公告)号：US10446089B2
公开(公告)日：2019-10-15
申请号：US15578320
申请日：2017-10-31
Inventor： Guowei Zha
Abstract: A method for driving the liquid crystal display comprises dividing a screen of the liquid crystal display into multiple displaying regions, and performing a divisional driving thereto, setting a backlight parameter corresponding to each the displaying region to a first backlight parameter during a first half of a time period of one frame, wherein the first backlight parameter is smaller than or equal to a maximum backlight parameter, setting the backlight parameter to a second backlight parameter during a second half of the time period, wherein the second parameter is smaller than a first threshold value, to have a default frame inserted during the second half of the time period of the one frame, and a difference between a gray level of the default frame and a gray level of a full black frame is within a predetermined range. The technical solution can improve blurred pictures.
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104.发明申请公开(公告)号：US20190221171A1
公开(公告)日：2019-07-18
申请号：US15574360
申请日：2017-09-11
Inventor： Guowei Zha
CPC classification number: G09G3/3426 , G09G3/2003 , G09G3/3208 , G09G3/3406 , G09G3/3413 , G09G3/3607 , G09G2320/0242 , G09G2320/0626 , G09G2320/0686 , G09G2360/16
Abstract: The present invention provides a partitioned backlight display method and device of a red, green, blue, and white (RGBW) display. Converting the RGB display to the RGBW avoids problems of pure color darkness from different pixel gain inconsistencies, independently sets saturation gain value in different partitions based on specific screens, and maximizes and enhances penetration rate of W sub-pixel brightness gain effect.
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105.发明授权公开(公告)号：US10274645B2
公开(公告)日：2019-04-30
申请号：US15325448
申请日：2016-12-28
Inventor： Guowei Zha
IPC: G02B1/113 , C03C17/34 , C03C17/23 , C01B32/186 , B32B3/30 , B81C1/00 , B82B3/00 , C01B32/188 , G02B1/118
Abstract: A manufacturing method of micro-nano structure antireflective coating layer and a display apparatus thereof are described. The method includes providing a substrate, forming a silicon oxide layer on the substrate, forming a graphene layer with a hexagonal honeycomb lattice on the silicon oxide layer, and forming a bottom surface of the antireflective coating layer in the nucleation points by serving the graphene layer as a growing base layer, wherein a diffusion length and an atomic mass of diffusion atoms of the antireflective coating layer are decreased with time by a gradient growing manner to form a upper surface of the antireflective coating layer.
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公开(公告)号：US20180315381A1
公开(公告)日：2018-11-01
申请号：US15534000
申请日：2017-04-19
Inventor： Guowei Zha , Hongqing Cui , Qi Wei
CPC classification number: G09G3/3607 , G09G3/2003 , G09G3/3406 , G09G3/36 , G09G2300/0452 , G09G2320/0233 , G09G2320/0626
Abstract: The invention provides a luminance adjustment method and apparatus for RGBW LCD, which uses first and second EOTFs to generate a grayscale luminance lookup table for RGBW LCD, and makes the grayscale-luminance relation in lookup table corresponding to the first EOTF within the grayscale interval between 0 and grayscale threshold; the grayscale-luminance relation in lookup table corresponding to the second EOTF within the grayscale interval between grayscale threshold and 255; the curve slope of the second EOTF greater than the curve slope of the first EOTF within the interval between second luminance threshold and maximum luminance value. By adopting different EOTFs for low and high grayscale intervals, the method considers the poor dark state characteristics of LCD and characteristics of RGBW LCD having higher maximum luminance, and improves the display capability of RGBW LCD in details of high grayscale images.
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