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公开(公告)号：US10921644B1
公开(公告)日：2021-02-16
申请号：US16879695
申请日：2020-05-20
发明人： Evan M. Richards , Shizhe Shen , Jianru Shi , Yue Shi , Shie Ping Jeffrey Tseng
IPC分类号： G02F1/1335 , G02F1/13357 , G02B27/01 , G02F1/13363
摘要： A liquid crystal display (LCD) device including an LCD panel and a backlight. The backlight includes a plurality of light sources to emit light, and a reflective stack. The reflective stack is positioned to receive light emitted from the light sources and transmit the light to the LCD panel. The reflective stack includes optical elements providing a folded beam path for the light emitted from the light sources to the LCD panel. The light emitted from the light sources is diffused while propagating towards and away from the LCD panel along the folded beam path. The folded beam path has an optical distance that is longer than the spatial distance between the light sources and the LCD panel to improve light diffusion by the backlight without substantially increasing backlight thickness.
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公开(公告)号：US10175417B2
公开(公告)日：2019-01-08
申请号：US15339345
申请日：2016-10-31
发明人： Jianru Shi , Evan M. Richards , Yue Shi , Shie Ping Jeffrey Tseng
IPC分类号： G02F1/1335 , F21V8/00
摘要： A liquid crystal display (LCD) device including a backlight with vertically stacked light emitting diodes (LEDs). The LCD device includes an LCD panel and a backlight for illuminating the LCD panel. The backlight includes a plurality of LEDs and a light guide. The plurality of LEDs are stacked vertically and disposed behind the LCD panel along one or more edges of the LCD panel. The plurality of LEDs include at least a first color LED and a second color LED emitting first light and second light at a first direction, respectively, at a first wavelength and a second wavelength, respectively. The light guide is disposed behind the LCD panel and adjacent to the plurality of LEDs. The light guide is configured to combine the first light and the second light received from the plurality of LEDs into combined light to illuminate the LCD panel.
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公开(公告)号：US10698257B2
公开(公告)日：2020-06-30
申请号：US15461323
申请日：2017-03-16
发明人： Evan M. Richards , Shizhe Shen , Jianru Shi , Yue Shi , Shie Ping Jeffrey Tseng
IPC分类号： G02F1/1335 , G02F1/13357 , G02B27/01 , G02F1/13363
摘要： A liquid crystal display (LCD) device including an LCD panel and a backlight. The backlight includes a plurality of light sources to emit light, and a reflective stack. The reflective stack is positioned to receive light emitted from the light sources and transmit the light to the LCD panel. The reflective stack includes optical elements providing a folded beam path for the light emitted from the light sources to the LCD panel. The light emitted from the light sources is diffused while propagating towards and away from the LCD panel along the folded beam path. The folded beam path has an optical distance that is longer than the spatial distance between the light sources and the LCD panel to improve light diffusion by the backlight without substantially increasing backlight thickness.
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公开(公告)号：US10303211B2
公开(公告)日：2019-05-28
申请号：US15422334
申请日：2017-02-01
发明人： Shie Ping Jeffrey Tseng , Evan M. Richards , Shizhe Shen , Jianru Shi , Yue Shi
摘要： An organic light emitting diode (OLED) display including a conic OLED panel portion and a base OLED panel portion. The conic OLED panel portion includes peripheral display surfaces forming a truncated conic shape with an open base region around a center of the conic OLED panel portion. The OLED base portion includes a display surface. The base OLED panel portion is positioned to cover the open base region of the conic OLED panel portion such that the peripheral display surfaces surround the base display surface. The OLED display approximates a circular convex display. The conic OLED panel portion may be fabricated from a flat, flexible OLED panel portion that is bent along the fold regions defining bending axes between the peripheral display surfaces to form the truncated conic shape.
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公开(公告)号：US10598942B1
公开(公告)日：2020-03-24
申请号：US16153437
申请日：2018-10-05
IPC分类号： G02B27/01
摘要： A mounting assembly for optical elements in a head-mounted display. The mounting assembly includes a housing and an element retainer. The housing encloses an optical element. The element retainer includes a first surface and a second surface. The first surface is fixed to the optical element via a first adhesive element. The second surface is fixed to the housing via a second adhesive element.
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公开(公告)号：US10409080B2
公开(公告)日：2019-09-10
申请号：US15422338
申请日：2017-02-01
发明人： Evan M. Richards , Shizhe Shen , Jianru Shi , Yue Shi , Shie Ping Jeffrey Tseng
摘要： An organic light emitting diode (OLED) display including an OLED panel having a series of gore shaped panel portions that form a quasi-spherical display surface. Each gore shaped panel portion includes a middle portion, a first end portion, and a second end portion. The middle portions of adjacent gore shaped panel portions are separated by bend regions. The OLED panel is bent along the first bend regions and each gore shaped panel portion is bent, such as along second bend regions between the middle portion and end portions, to join adjacent first end portions and adjacent second end portions of the gore shaped panel portions. Two OLED displays may be mounted within a head-mounted display (HMD), each behind an optics block. The quasi-spherical display surface of each OLED display generates a substantially flat image for the user after light from the display surface passes through the optic block.
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公开(公告)号：US10712775B2
公开(公告)日：2020-07-14
申请号：US15370649
申请日：2016-12-06
发明人： Evan M. Richards , Shie Ping Jeffrey Tseng , Jianru Shi , Yue Shi
IPC分类号： G06F1/16 , F21V8/00 , G02F1/13357 , G02B27/01
摘要： A liquid crystal display (LCD) device including a backlight with an LED assembly. The LED assembly includes a dichroic combiner and two or more different color LEDs. A substrate of the dichroic combiner receives color light from multiple color LEDs at different input regions and propagating in different directions. Dielectric layers within the substrate selectively reflect or transmit the color light to spatially superimpose the color light, and output the color light in a particular direction at a light output region of the substrate. The light output regions of LED assemblies are arranged behind an LCD panel, along one or more edges, to illuminate the LCD panel. The LED assembly provides edge-lighting without requiring LED placement along the one or more edges.
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公开(公告)号：US10170060B2
公开(公告)日：2019-01-01
申请号：US15391034
申请日：2016-12-27
发明人： Shie Ping Jeffrey Tseng , Evan M. Richards , Jianru Shi , Yue Shi
IPC分类号： G09G3/34 , G09G3/02 , G09G3/36 , G06F3/01 , G02F1/13357 , G02F1/1335
摘要： A liquid crystal display (LCD) device is driven in interlaced scan to accommodate for liquid crystal (LC) setting times without sacrificing brightness. The LCD device includes an LCD panel including a first group of (e.g., even) pixel lines and a second group (e.g., odd) pixel lines, a backlight disposed behind the LCD panel to emit light toward the even and odd pixel lines, a shift grating disposed between the LCD and the backlight, the shift grating configured to block the light from the backlight from reaching either the first group of pixel lines or the second group of pixel lines, and a controller. The controller drives the LCD panel using an interlaced scan, coordinates the activation of the backlight (e.g., a strobed backlight), and changes the state of the shift grating to block the light from the backlight from reaching either the first group of pixel lines or the second group of pixel lines.
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