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公开(公告)号：US11270657B2
公开(公告)日：2022-03-08
申请号：US16982550
申请日：2020-04-13
发明人： Chenxi Zhao , Hao Zhang , Lili Chen , Minglei Chu , Xiangjun Peng , Yachong Xue , Gang Li , Shuo Zhang , Yaoyu Lv , Mingyang Yan
摘要： The present disclosure provides a method for driving a display device, an apparatus for driving a display device, a display device and a computer readable medium. The display device includes a backlight module, and the backlight module includes a plurality of backlight partitions. The driving method may include: determining backlight signal values of the plurality of backlight partitions according to input grayscale values of pixels in an image to be displayed; determining a backlight jump value of each of the plurality of backlight partitions according to the backlight signal values of the plurality of backlight partition; adjusting the backlight signal values of the plurality of backlight partitions according to the backlight jump values to obtain adjusted backlight signal values; and driving the backlight module to emit light using the adjusted backlight signal values of the plurality of backlight partitions.
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公开(公告)号：US11145265B2
公开(公告)日：2021-10-12
申请号：US16825859
申请日：2020-03-20
发明人： Yukun Sun , Wenyu Li , Zhifu Li , Mingyang Yan , Qingwen Fan , Jinghua Miao , Huidong He , Shuo Zhang , Lili Chen , Hao Zhang
摘要： Embodiments of the present disclosure provide a method for driving a display device to display an image sequence and a display device therefor. The display device includes a backlight module having a plurality of backlight partitions. The image sequence includes at least a first frame image and a second frame image. The method includes determining a first region in the first frame image and a second region in the second frame image that correspond to an overlapping portion of the first frame image and second frame image as overlapping regions; obtaining, based at least partially on a first backlight value of a first backlight partition(s) corresponding to the first region, a second backlight value of a second backlight partition corresponding to the second region; and controlling a backlight brightness of the second backlight partition based on the second backlight value when the display device displays the second frame image.
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公开(公告)号：US20210158766A1
公开(公告)日：2021-05-27
申请号：US16982550
申请日：2020-04-13
发明人： Chenxi Zhao , Hao Zhang , Lili Chen , Minglei Chu , Xiangjun Peng , Yachong Xue , Gang Li , Shuo Zhang , Yaoyu Lv , Mingyang Yan
摘要： The present disclosure provides a method for driving a display device, an apparatus for driving a display device, a display device and a computer readable medium. The display device includes a backlight module, and the backlight module includes a plurality of backlight partitions. The driving method may include: determining backlight signal values of the plurality of backlight partitions according to input grayscale values of pixels in an image to be displayed; determining a backlight jump value of each of the plurality of backlight partitions according to the backlight signal values of the plurality of backlight partition; adjusting the backlight signal values of the plurality of backlight partitions according to the backlight jump values to obtain adjusted backlight signal values; and driving the backlight module to emit light using the adjusted backlight signal values of the plurality of backlight partitions.
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公开(公告)号：US11513346B2
公开(公告)日：2022-11-29
申请号：US16766583
申请日：2019-05-24
发明人： Jinghua Miao , Xuefeng Wang , Jinbao Peng , Lili Chen , Hao Zhang , Yukun Sun , Bin Zhao , Xi Li , Wenyu Li , Zhifu Li , Jianwen Suo , Longhui Wang , Mingyang Yan , Shuai Hao , Qingwen Fan
摘要： Embodiments of the present disclosure provide a method for controlling a virtual reality display device, wherein the virtual reality display device includes a display, an optical system, and a movement controller. In this method, an anti-distortion image is generated based on the original image according to distortion parameters of the optical system. The anti-distortion image includes an effective image area and an invalid image area, wherein the effective image area includes image information of the original image. The movement control information is written into the invalid image area, and the movement control information is used by the movement controller to control the movement of the display. The anti-distortion image is provided to the virtual reality display device.
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公开(公告)号：US20210056719A1
公开(公告)日：2021-02-25
申请号：US16872545
申请日：2020-05-12
发明人： Zhifu LI , Mingyang Yan , Jinghua Miao , Yukun Sun , Wenyu Li , Lili Chen , Hao Zhang
摘要： A method for processing an image in a virtual reality display device and a related virtual reality display device are provided. A gaze area and a non-gaze area are determined in a display area of a virtual reality display device. At a first time instant, a rendering process is performed in the gaze area and the non-gaze area to generate a first image. Based on attitude information of the virtual reality display device at a second time instant, a time warping process is performed on the first image to generate a second image. Based on the movement information and attribute information of the motion object in the gaze area, the second image is modified. With the modifying the second image, problems caused by the time warping process can be avoided, delays can be reduce, and smearing or ghosting can be avoided, thus a good display effect can be obtained.
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公开(公告)号：US11244637B2
公开(公告)日：2022-02-08
申请号：US17041652
申请日：2020-04-07
发明人： Mingyang Yan , Zhifu Li , Jinghua Miao , Yukun Sun , Wenyu Li , Lili Chen , Hao Zhang , Chenxi Zhao
IPC分类号： G09G3/34
摘要： The present disclosure relates to a backlight control method and apparatus for a backlight module, a display device and a computer readable storage medium. The backlight module includes a plurality of backlight partitions. The backlight control method includes, for each backlight partition: determining a first brightness change threshold according to an output backlight brightness corresponding to a previous frame image; and determining, according to a difference between an initial backlight brightness of a current frame image and the output backlight brightness corresponding to the previous frame image and the first brightness change threshold, the output backlight brightness corresponding to the current frame image.
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公开(公告)号：US20210058612A1
公开(公告)日：2021-02-25
申请号：US16937678
申请日：2020-07-24
发明人： Yukun Sun , Shuo Zhang , Jinghua Miao , Wenyu Li , Zhifu Li , Mingyang Yan , Qingwen Fan , Huidong He , Hao Zhang , Lili Chen
IPC分类号： H04N13/398 , H04N13/344 , H04N13/373 , H04N13/376
摘要： Disclosed are a virtual reality display method, a device, a system, and a storage medium. The method is applicable to a terminal in the virtual reality display system which includes a virtual reality device and a terminal. The method includes: rendering a first virtual reality image at a first rendering resolution to acquire a first rendered image; sending the first rendered image to the virtual reality device; rendering a second virtual reality image at a second rendering resolution to acquire a second rendered image; and sending the second rendered image to the virtual reality device, wherein the first rendering resolution is less than the second rendering resolution, and the first and the second virtual reality images are two adjacent frames of images.
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公开(公告)号：US11810524B2
公开(公告)日：2023-11-07
申请号：US17418206
申请日：2020-12-29
发明人： Wenyu Li , Jinghua Miao , Lili Chen , Hao Zhang , Jinbao Peng , Mingyang Yan
CPC分类号： G09G3/3406 , G06T5/006 , G06T15/00 , G09G3/2007 , G09G2310/08 , G09G2320/0261 , G09G2320/062 , G09G2320/0626 , G09G2360/16
摘要： The present application relates to a virtual reality display device and a control method thereof. The method comprises: acquiring time required for three-dimensional scene rendering when three-dimensional scene rendering is performed on a frame of image to be displayed (S11); and selecting a mode of local backlight dimming according to the time required for three-dimensional scene rendering and a predetermined screen refresh rate, wherein the greater the time required for three-dimensional scene rendering, the less the time required for the selected mode of the local backlight dimming (S12).
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公开(公告)号：US11263767B2
公开(公告)日：2022-03-01
申请号：US16872545
申请日：2020-05-12
发明人： Zhifu Li , Mingyang Yan , Jinghua Miao , Yukun Sun , Wenyu Li , Lili Chen , Hao Zhang
摘要： A method for processing an image in a virtual reality display device comprises determining a gaze area and a non-gaze area in a display area of the virtual reality display device, performing, at a first time instant, a rendering process in the gaze area and the non-gaze area to generate a first image, performing a time warping process on the first image to generate a second image, based on attitude information of the virtual reality display device at a second time instant, and modifying the second image based on the movement information and attribute information of a motion object in the gaze area. The method can avoid problems caused by the time warping process, reduce delays, and avoid smearing or ghosting, and thus obtain a good display effect.
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10.发明申请公开(公告)号：US20210056917A1
公开(公告)日：2021-02-25
申请号：US16821985
申请日：2020-03-17
发明人： Mingyang Yan , Chenxi Zhao , Jinghua Miao , Yukun Sun , Wenyu Li , Zhifu Li , Hao Zhang , Lili Chen
IPC分类号： G09G3/34
摘要： The present disclosure provides a method for backlight control, a display device, an electronic device and a computer readable storage medium. The display device may include a backlight module and a display unit. The backlight module includes backlight partitions. The method comprises: determining, with respect to a current frame image, a first backlight brightness value for each backlight partition; determining a scene type of the current frame image according to the first backlight brightness value and a ratio of black regions in the current frame image; obtaining an actual backlight brightness value for each of the plurality of the backlight partitions with respect to the current frame image, by processing the first backlight brightness value according to the scene type determined; and driving the backlight module with the actual backlight brightness value, so as to adjust the backlight brightness for each backlight partition in the backlight module.
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