-
公开(公告)号：US20230135360A1
公开(公告)日：2023-05-04
申请号：US17801977
申请日：2021-02-25
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Xiangchun Xiao , Fan Yang , Shengbao Dun
Abstract: A method and apparatus for evaluating blue-light-radiation injury to a retina, a computer device and a medium. The method includes: acquiring a current environmental brightness and a current middle-grayscale brightness of a displaying device; according to a weighted blue-light-radiation-exposure value of a current environment, current environmental brightness, a weighted blue-light-radiation-exposure value of displaying device and current middle-grayscale brightness of displaying device, determining a device-environment factor; according to device-environment factor and current environmental brightness, determining an optimum middle-grayscale brightness of the displaying device in the current environment; according to the current middle-grayscale brightness of displaying device, the optimum middle-grayscale brightness of the displaying device in the current environment and the weighted blue-light-radiation-exposure value of the current environment, determining a current retina weighted blue-light-radiation-exposure value; and according to comparison between the current retina weighted blue-light-radiation-exposure value and a retina blue-light maximum safety-tolerance value, determining whether an eye-protection safety standard is satisfied.
-
公开(公告)号：US11769439B2
公开(公告)日：2023-09-26
申请号：US17802331
申请日：2021-02-25
Applicant: BOE Technology Group Co., Ltd.
Inventor： Xiangchun Xiao , Fan Yang
CPC classification number: G09G3/2007 , G09G3/3406 , G09G2320/0626 , G09G2320/0666 , G09G2360/16
Abstract: A method and device for adjusting a display parameter, and a display device. An ambient brightness level is used as a criterion to adjust a brightness level of an intermediate gray level of a displayed image, such that a corresponding display parameter can be adjusted to be closer to the criterion within an appropriate allowable floating range, thereby providing a displayed image that is safe and comfortable for the eyes. The method comprises: detecting an ambient brightness level (101); determining an adjustment parameter of a display device corresponding to a preset condition, the preset condition comprising a difference between a brightness level of an intermediate gray level of the display device and the ambient brightness level being less than or equal to a preset brightness value (102); and adjusting, according to the adjustment parameter, brightness levels of at least a portion of gray levels of the display device (103).
-
公开(公告)号：US20230100868A1
公开(公告)日：2023-03-30
申请号：US17802331
申请日：2021-02-25
Applicant: BOE Technology Group Co., Ltd.
Inventor： Xiangchun Xiao , Fan Yang
Abstract: A method and device for adjusting a display parameter, and a display device. An ambient brightness level is used as a criterion to adjust a brightness level of an intermediate gray level of a displayed image, such that a corresponding display parameter can be adjusted to be closer to the criterion within an appropriate allowable floating range, thereby providing a displayed image that is safe and comfortable for the eyes. The method comprises: detecting an ambient brightness level (101); determining an adjustment parameter of a display device corresponding to a preset condition, the preset condition comprising a difference between a brightness level of an intermediate gray level of the display device and the ambient brightness level being less than or equal to a preset brightness value (102); and adjusting, according to the adjustment parameter, brightness levels of at least a portion of gray levels of the display device (103).
-
公开(公告)号：US10373576B2
公开(公告)日：2019-08-06
申请号：US14817619
申请日：2015-08-04
Inventor： Xiangchun Xiao , Lujiang Huangfu , Haiyu Zhao , Hongming Zhan
IPC: G09G3/36
Abstract: A liquid crystal display driving apparatus including a pixel voltage driving circuit for providing a periodical pulse high-voltage signal is provided. The liquid crystal display driving apparatus includes: a gate driving unit, a source driving unit, and a gate line and a date line intersected with each other to define a pixel region, in which a pixel electrode is provided, wherein the source driving unit includes: a pixel voltage driving circuit for providing a unidirectional voltage signal applied to the pixel electrode in the pixel region and for providing a periodical pulse high-voltage signal; and a common voltage driving circuit for providing a common voltage signal which corresponds to the unidirectional voltage signal provided by the pixel voltage driving circuit.
-
公开(公告)号：US11244655B2
公开(公告)日：2022-02-08
申请号：US17273789
申请日：2019-09-10
Inventor： Xiangchun Xiao , Heliang Di , Xuguang Jia
Abstract: A method and device for modulating a brightness-grayscale curve of a display device are provided. The method includes determining an applicable standard brightness-grayscale curve for eye perception; obtaining theoretical brightness values corresponding to respective grayscales of the display device based on the applicable standard brightness-grayscale curve for eye perception and at least one of an eye pupil change factor, an environmental factor and a factor related to the display device; modulating brightnesses of the display device according to the theoretical brightness values corresponding to the respective grayscales of the display device. The above method is a solution to the problems of low grayscale details, backlighting, high grayscale saturation, and transition-color unevenness. The problem is solved that a visible grayscale in a dimmed session is no longer distinguishable in a bright environment. And a quantifiable standard for modulation control is provided.
-
Patent Agency Ranking
公开(公告)号：US10192521B2
公开(公告)日：2019-01-29
申请号：US15526638
申请日：2017-01-03
Inventor： Xiangchun Xiao
IPC: G09G5/10
Abstract: The present invention relates to a gamma adjustment method, which includes: measuring a minimum brightness value Lmin and a maximum brightness value Lmax of a display panel; wherein the minimum brightness value Lmin is a brightness value at gray level 0, and the maximum brightness value Lmax is a brightness value at gray level n; calculating value of a first intermediate parameter x according to formula L min L max = ( x n ) m , where m is a gamma value of the display panel; calculating value of a second intermediate parameter y according to formula y = n - x n ; calculating a brightness value Lz at gray level z according to formula L z = ( x + z × y n ) m × L max or L z = ( x + z × y x ) m × L min , where z is an integer ranging from 1 to (n−1); and adjusting the brightnesses of the display panel based on the minimum brightness value Lmin, the maximum brightness value Lmax, and the brightness values at gray level 1 to gray level (n−1).
-
公开(公告)号：US20180329257A1
公开(公告)日：2018-11-15
申请号：US15578551
申请日：2017-07-04
Inventor： Xiangchun Xiao
IPC: G02F1/1335 , G02F1/1333 , G02F1/1368 , G02F1/1362 , G02F1/1343 , G06F3/041
CPC classification number: G02F1/133553 , G02F1/13338 , G02F1/133512 , G02F1/133528 , G02F1/134309 , G02F1/13439 , G02F1/136286 , G02F1/1368 , G02F2001/134345 , G06F3/0412 , G06F3/044
Abstract: The present application discloses a display substrate having a subpixel region and an inter-subpixel region. The display substrate includes a base substrate, and a reflective structure in the inter-sub pixel region configured to reflect light emitted from a back light toward the inter-subpixel region of the display substrate back to the back light while allowing light transmit through the subpixel region.
-
公开(公告)号：US11804163B2
公开(公告)日：2023-10-31
申请号：US17608948
申请日：2020-05-07
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Xiangchun Xiao
CPC classification number: G09G3/2074 , G09G2320/0673 , G09G2360/144 , G09G2360/16
Abstract: Provided is a display method which includes: acquiring luminance information of the environment where the display device is currently located, wherein the luminance information includes at least one of ambient luminance information and reflection luminance information; and based on the acquired luminance information, determining a target gamma curve of the display device. A display device and a non-transitory computer-readable computer storage medium are also provided.
-
公开(公告)号：US11640782B2
公开(公告)日：2023-05-02
申请号：US17609233
申请日：2020-05-06
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Xiangchun Xiao , Huijun Li
IPC: G09G3/20
Abstract: The invention relates to a gamma adjustment method and device for a display panel. The gamma adjustment method comprises the following steps: obtaining the light intensity of ambient light of a display panel; obtaining a value of the intensity of the reflected light from the display panel according to the light intensity of the ambient light and the corresponding relation between the intensity of the reflected light from the display panel and the light intensity of the ambient light; and determining a gamma curve according to the value of the intensity of the reflected light and the maximum brightness of the display panel.
-
公开(公告)号：US20220319381A1
公开(公告)日：2022-10-06
申请号：US17608948
申请日：2020-05-07
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Xiangchun Xiao
IPC: G09G3/20
Abstract: Provided is a display method which includes: acquiring luminance information of the environment where the display device is currently located, wherein the luminance information includes at least one of ambient luminance information and reflection luminance information; and based on the acquired luminance information, determining a target gamma curve of the display device. A display device and a non-transitory computer-readable computer storage medium are also provided.
-
-
-
-
-
-
-
-
-
Search Results
11
records
(took 0.015 seconds)
