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公开(公告)号：US20230245260A1
公开(公告)日：2023-08-03
申请号：US18162297
申请日：2023-01-31
摘要： In one embodiment, a method includes by a computing system, rendering an image using a tile-based graphics processing unit. Determining a gaze location of a user wearing a head-mounted device and using the gaze location to select, from the multiple tiles, central tiles in which the user's gaze location is located, periphery tiles outside of the central tiles, and border tiles located between the central tiles and the periphery tiles. Instructing the GPU to render (a) the central tiles in a first pixel-density, (b) the periphery tiles in a second pixel-density, and (c) the border tiles in the first pixel-density and in the second pixel-density and then blending the border tiles rendered in the first pixel-density and the border tiles rendered in the second pixel-density to create blended border tiles. Then, outputting the central tiles, the periphery tiles, and the blended border tiles using a display of the head-mounted device.
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公开(公告)号：US20240142677A1
公开(公告)日：2024-05-02
申请号：US18483141
申请日：2023-10-09
发明人： Zhaoyu Nie , Sheng Ye , Liliana Ruiz Diaz , Weihua Gao , Spencer Allan Wells , Andrew John Ouderkirk , Arman Boromand , Junren Wang , Tingling Rao , Lafe Joseph Purvis, II , Hend Baza
IPC分类号： G02B5/20
CPC分类号： G02B5/20
摘要： A notched filter includes a multilayer having alternating first and second polymer layers, the first polymer layers each including an isotropic polymer thin film having in-plane refractive indices n1x and n1y, and the second polymer layers each including an isotropic or anisotropic polymer thin film having in-plane refractive indices n2x and n2y, where a thickness of each successive first polymer layer decreases with increasing distance from a centerline of the multilayer, and a thickness of each successive second polymer layer increases with increasing distance from the centerline. Such a filter may be configured to reflect incident light having a desired polarization state within a predetermined and relatively narrow band.
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公开(公告)号：US20230317023A1
公开(公告)日：2023-10-05
申请号：US17713965
申请日：2022-04-05
发明人： Weihua Gao , Jianru Shi , Tianxin Ning , Haomiao Jiang
IPC分类号： G09G3/34
CPC分类号： G09G3/342 , G09G2340/0407 , G09G2320/0626 , G09G2320/0247
摘要： In particular embodiments, a computing system may receive an image to be shown on a display having a plurality of backlight zones. The computing system may compute a backlight matrix for adjusting brightness levels of the backlight zones of the display by computing, for each of the backlight zones, a zone statistic to represent grayscale levels of a portion of the image within the backlight zone, mapping the zone statistic of each of the backlight zones to a brightness value using a particular mapping technique configured to adjust any of the backlight zones having a zone statistic that is below a predetermined threshold, and generating the backlight matrix by filtering the brightness values. The computing system may instruct the display to output the image and adjust the backlight zones based on the backlight matrix.
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公开(公告)号：US20220389562A1
公开(公告)日：2022-12-08
申请号：US17827407
申请日：2022-05-27
摘要： A method of forming a low reflectivity coating on an optical surface for wide angle of incidence is provided. The method includes depositing a low refractive index layer of material on a stack of dielectric layers, depositing a hydrophobic compatible material on the stack of dielectric layers, forming a blend interface layer on the stack of dielectric layers, the blend interface layer including a portion of the low refractive index layer of material and a portion of the hydrophobic compatible material, and depositing a hydrophobic layer of material adjacent to the blend interface layer. A physical vapor deposition chamber to perform the above method is also provided.
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公开(公告)号：US20240347013A1
公开(公告)日：2024-10-17
申请号：US18301629
申请日：2023-04-17
发明人： Haomiao Jiang , Linghui Rao , Tianxin Ning , Weihua Gao , Yongmin Park
CPC分类号： G09G3/3426 , G09G3/3607 , G09G2320/0646 , G09G2320/0666
摘要： In particular embodiments, a computing system may receive receiving a first image frame of a sequence of image frames to be shown on a display having a plurality of backlight zones. The computing system may compute backlight unit statistics of the first image frame. The backlight unit statistics may represent grayscale levels for the plurality of backlight zones. The computing system may compute a global dimming gain for adjusting color values and backlight unit intensity of a second image frame of the sequence of image frames based on the backlight unit statistics of the first image frame. The computing system may adjust, using the global dimming gain, the color values and the backlight unit intensity of the second image frame.
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6.发明公开公开(公告)号：US20240231162A1
公开(公告)日：2024-07-11
申请号：US18512976
申请日：2023-11-17
发明人： Weihua Gao , Dmytro Y Reznikov , Afsoon Jamali , Amit Bhowmick , Eric Stratton , Yakov Soskind , Gary D Sharp , Tony Donal McGettigan
IPC分类号： G02F1/1347 , G02F1/137 , G02F1/29
CPC分类号： G02F1/13471 , G02F1/13725 , G02F1/294
摘要： A lens system may include a lens and a leakage-reduction element overlapping the lens. The lens may include a driving electrode array, a common electrode, and a lens liquid crystal layer disposed between the driving electrode array and the common electrode. The leakage-reduction element may include a guest-host liquid crystal layer having dye molecules in a liquid crystal solution. A display device may include a display screen, which has a plurality of light emitting elements, and a lens system that receives light emitted from the display screen. Various other devices, systems, and methods are also disclosed.
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公开(公告)号：US20240069265A1
公开(公告)日：2024-02-29
申请号：US18062205
申请日：2022-12-06
发明人： Weihua Gao , Sheng Ye , Silvio Grespan , Aiqing Chen , Rongzhi Huang , Christopher Yuan Ting Liao , Andrew John Ouderkirk , Zhaoyu Nie , Liliana Ruiz Diaz
摘要： A multilayer polymer thin film includes an anti-reflective coating directly overlying a reflective polarizer stack. The reflective polarizer stack includes alternating first and second polymer layers, where the first layers include an isotropic polymer thin film and the second layers include an anisotropic polymer thin film. The anti-reflective coating (ARC) includes alternating third and fourth layers, where the third layers include an isotropic polymer thin film or an anisotropic polymer thin film and the fourth layers include an isotropic polymer thin film. The multilayer polymer thin film may be formed by co-extrusion where the reflective polarizer stack and the anti-reflective coating are formed simultaneously.
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公开(公告)号：US11703709B1
公开(公告)日：2023-07-18
申请号：US17165788
申请日：2021-02-02
发明人： Jianing Yao , Daozhi Wang , Silvio Grespan , Weihua Gao , Chia-Hsuan Tai , Shizhe Shen , John Robert Volk , Richard Han Soo Cho
IPC分类号： G02F1/1335 , G02F1/13363
CPC分类号： G02F1/133548 , G02F1/133541 , G02F1/133638
摘要： An optical element includes a linear polarizer layer and a transparent optical layer. The linear polarizer layer includes surfaces waviness and the transparent optical layer smooths the surfaces waves of the linear polarizer layer.
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