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1 | US2020027865A1 |
MICRO LED DISPLAY AND MANUFACTURING METHOD THEREOF
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Publication/Patent Number: US2020027865A1 | Publication Date: 2020-01-23 | Application Number: 16/120,835 | Filing Date: 2018-09-04 | Inventor： Fan, Regis Ko, Pei-wen Fan, Chun-sheng | Assignee: OmniVision Semiconductor (Shanghai) Co., Ltd. | IPC: H01L25/16 | Abstract: A micro LED display and a manufacturing method thereof are disclosed. A plurality of electrode structures is formed on a first surface of a substrate, and a plurality of circuit structure are formed in the substrate, where the circuit structures are electrically connected to the electrode structures. An LED functional layer is formed on the substrate, and includes a plurality of mutually isolated LED functional structures, where the LED functional structures are corresponding and electrically connected to the electrode structures. An electrode layer covers the LED functional layer and is electrically connected to the LED functional structures. Micro lenses are formed on the electrode layer and corresponding to the LED functional structures. Therefore, all the LED functional structures can be wholly used as a light-emitting region of a pixel, improving light emission efficiency of the micro LED display. | |||
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2 | US10684477B2 |
Near-eye display device and methods with coaxial eye imaging
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Publication/Patent Number: US10684477B2 | Publication Date: 2020-06-16 | Application Number: 15/097,137 | Filing Date: 2016-04-12 | Inventor： Liu, Yi-wei Deng, Jau-jan Fan, Regis | Assignee: OmniVision Technologies, Inc. | IPC: G02B27/01 | Abstract: A near-eye display device includes (a) a display unit for displaying a display image, (b) a viewing unit for presenting the display image to the eye and transmitting ambient light from an ambient scene toward the eye, and (c) an eye imaging unit including (i) an illumination module for generating at least three infrared light beams propagating along at least three different, non-coplanar directions, respectively, (ii) a first beamsplitter interface, disposed between the display unit and the viewing unit, for merging at least a portion of each of the infrared light beams with visible display light to direct each portion toward the eye via the viewing unit, and (iii) a camera for imaging, via the viewing unit and the first beamsplitter interface, pupil of the eye and reflections of the infrared light beams incident on the eye, to form one or more images indicative of gaze direction of the eye. | |||
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3 | US202027865A1 |
MICRO LED DISPLAY AND MANUFACTURING METHOD THEREOF
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Publication/Patent Number: US202027865A1 | Publication Date: 2020-01-23 | Application Number: 20/181,612 | Filing Date: 2018-09-04 | Inventor： Fan, Regis Fan, Chun-sheng Ko, Pei-wen | Assignee: OmniVision Semiconductor (Shanghai) Co., Ltd. | IPC: H01L33/62 | Abstract: A micro LED display and a manufacturing method thereof are disclosed. A plurality of electrode structures is formed on a first surface of a substrate, and a plurality of circuit structure are formed in the substrate, where the circuit structures are electrically connected to the electrode structures. An LED functional layer is formed on the substrate, and includes a plurality of mutually isolated LED functional structures, where the LED functional structures are corresponding and electrically connected to the electrode structures. An electrode layer covers the LED functional layer and is electrically connected to the LED functional structures. Micro lenses are formed on the electrode layer and corresponding to the LED functional structures. Therefore, all the LED functional structures can be wholly used as a light-emitting region of a pixel, improving light emission efficiency of the micro LED display. | |||
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4 | US10607974B2 |
Micro LED display and manufacturing method thereof
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Publication/Patent Number: US10607974B2 | Publication Date: 2020-03-31 | Application Number: 16/120,835 | Filing Date: 2018-09-04 | Inventor： Fan, Regis Ko, Pei-wen Fan, Chun-sheng | Assignee: OMNIVISION SEMICONDUCTOR (SHANGHAI) CO., LTD. | IPC: H01L25/16 | Abstract: A micro LED display and a manufacturing method thereof are disclosed. A plurality of electrode structures is formed on a first surface of a substrate, and a plurality of circuit structure are formed in the substrate, where the circuit structures are electrically connected to the electrode structures. An LED functional layer is formed on the substrate, and includes a plurality of mutually isolated LED functional structures, where the LED functional structures are corresponding and electrically connected to the electrode structures. An electrode layer covers the LED functional layer and is electrically connected to the LED functional structures. Micro lenses are formed on the electrode layer and corresponding to the LED functional structures. Therefore, all the LED functional structures can be wholly used as a light-emitting region of a pixel, improving light emission efficiency of the micro LED display. | |||
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5 | US10409078B2 |
Lensed beam-splitter prism array and associated method
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Publication/Patent Number: US10409078B2 | Publication Date: 2019-09-10 | Application Number: 14/605,554 | Filing Date: 2015-01-26 | Inventor： Deng, Jau-jan Fan, Regis Liu, Yi-wei | Assignee: OmniVision Technologies, Inc. | IPC: G02B27/12 | Abstract: A lensed beam-splitter prism array includes a beam-splitter substrate with a plurality of planar and parallel thin-film coatings each spanning a top substrate surface and a bottom substrate surface, and making an oblique angle therebetween, and a lens form layer formed on the top surface and having a plurality of lens forms, each lens form being above one of the plurality of coatings. A method for fabricating a lensed beam-splitter prism includes bonding a plurality of substrates to form a substrate stack having a coating between each adjacent substrate pair. The method also includes forming a stack slice by applying a plurality of parallel cuts at an oblique angle with respect to each coating. Each coating spans a first stack-slice surface and a second stack-slice surface opposing the first stack-slice surface. The method also includes forming a lens form layer on the first stack-slice surface spanning one or more coatings. | |||
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6 | US10429699B2 |
System and method for protecting a liquid crystal display by controlling ion migration
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Publication/Patent Number: US10429699B2 | Publication Date: 2019-10-01 | Application Number: 15/428,307 | Filing Date: 2017-02-09 | Inventor： Walker, Christopher Morgan Weng, Libo Cellek, Oray Orkun Zhang, Ming Qian, Yin Tai, Dyson Hsin-chih Fan, Regis | Assignee: OmniVision Technologies, Inc. | IPC: G02F1/1337 | Abstract: A liquid crystal display includes a display area and a border area at least partially surrounding the display area, where the display area displays images for viewing and the border area displays display-protection images, which are used to control ion migration in the liquid crystal layer. In a more particular embodiment, the border area displays a series of checkerboard pattern(s), where the checkerboard patterns can alternate between initial and inverted values. The display-protection images protect the liquid crystal display from migrating ions accumulating in particular regions of the pixel array and causing permanent defects in the display area. A liquid crystal display that includes a liquid crystal alignment layer having a plurality of liquid crystal alignment directions is also disclosed. The customized liquid crystal alignment director(s) over the border area promote ion migration away from the display area. | |||
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7 | US10481439B2 |
System and method for protecting a liquid crystal display by controlling ion migration
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Publication/Patent Number: US10481439B2 | Publication Date: 2019-11-19 | Application Number: 15/357,920 | Filing Date: 2016-11-21 | Inventor： Walker, Christopher Morgan Weng, Libo Cellek, Oray Orkun Zhang, Ming Qian, Yin Tai, Dyson Hsin-chih Fan, Regis | Assignee: OmniVision Technologies, Inc. | IPC: G09G3/36 | Abstract: A liquid crystal display includes a display area and a border area at least partially surrounding the display area, where the display area displays images for viewing and the border area displays display-protection images, which are used to control ion migration in the liquid crystal layer. In a more particular embodiment, the border area displays a series of checkerboard pattern(s), where the checkerboard patterns can alternate between initial and inverted values. The display-protection images protect the liquid crystal display from migrating ions accumulating in particular regions of the pixel array and causing permanent defects in the display area. A liquid crystal display that includes a liquid crystal alignment layer having a plurality of liquid crystal alignment directions is also disclosed. The customized liquid crystal alignment director(s) over the border area promote ion migration away from the display area. | |||
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8 | US10155330B2 |
Method of forming packaged lens modules
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Publication/Patent Number: US10155330B2 | Publication Date: 2018-12-18 | Application Number: 14/869,578 | Filing Date: 2015-09-29 | Inventor： Fan, Regis | Assignee: OMNIVISION OPTOELECTRONICS TECHNOLOGIES (SHANGHAI) CO., LTD. | IPC: G02B13/00 | Abstract: A method of forming packaged lens modules is disclosed which includes: securing first ends of a plurality of lens modules equidistantly on a first mold plate; providing a second mold plate matching with second ends of the lens modules and securing the second mold plate on the second ends of the lens modules; filling a black material in gaps between the lens modules; and removing the first and second mold plates after the black material is cured and performing a dicing process. The method can effectively block lens openings to protect lenses from being contaminated and can eliminate the need for adhesive application and removal generally performed on second ends of the lens modules, thereby resulting in time savings and an efficiency improvement. Additionally, a height of the resulting packaged lens modules can be modified for back focal length compensation thereof by changing the size of the second mold plate. | |||
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9 | US10086545B2 |
Method of forming packaged lens modules
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Publication/Patent Number: US10086545B2 | Publication Date: 2018-10-02 | Application Number: 14/869,578 | Filing Date: 2015-09-29 | Inventor： Fan, Regis | Assignee: OMNIVISION OPTOELECTRONICS TECHNOLOGIES (SHANGHAI) CO., LTD. | IPC: B29C45/16 | Abstract: A method of forming packaged lens modules is disclosed which includes: securing first ends of a plurality of lens modules equidistantly on a first mold plate; providing a second mold plate matching with second ends of the lens modules and securing the second mold plate on the second ends of the lens modules; filling a black material in gaps between the lens modules; and removing the first and second mold plates after the black material is cured and performing a dicing process. The method can effectively block lens openings to protect lenses from being contaminated and can eliminate the need for adhesive application and removal generally performed on second ends of the lens modules, thereby resulting in time savings and an efficiency improvement. Additionally, a height of the resulting packaged lens modules can be modified for back focal length compensation thereof by changing the size of the second mold plate. | |||
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10 | US9958680B2 |
Near-eye display device and methods with coaxial eye imaging
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Publication/Patent Number: US9958680B2 | Publication Date: 2018-05-01 | Application Number: 14/869,067 | Filing Date: 2015-09-29 | Inventor： Fan, Regis Deng, Jau-jan Liu, Yi-wei | Assignee: OmniVision Technologies, Inc. | IPC: G02B27/00 | Abstract: A near-eye display device, with coaxial eye imaging, for mounting in field of view of an eye of a user, includes a display unit for displaying a display image, a viewing unit for (i) presenting the display image to the eye based upon polarized visible light received from the display unit and (ii) transmitting ambient light from an ambient scene toward the eye, and an eye imaging unit including (a) an illumination module for generating infrared light, (b) a first polarizing beamsplitter interface, disposed between the display unit and the viewing unit, for (i) merging a polarized infrared component of the infrared light with the polarized visible light and (ii) separating from the polarized visible light a portion of the polarized infrared component reflected by the eye, and (c) a camera for forming an image of the eye based upon the polarized infrared component reflected by the eye. | |||
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11 | US9919455B2 |
Methods for forming a lens plate for an integrated camera using UV-transparent molds and methods for forming UV-transparent molds
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Publication/Patent Number: US9919455B2 | Publication Date: 2018-03-20 | Application Number: 13/592,308 | Filing Date: 2012-08-22 | Inventor： Barnes, George Rauker, Goran Fan, Regis | Assignee: OmniVision Technologies, Inc. | IPC: B29C33/00 | Abstract: Suspended lenses in a spacer wafer and lens-in-a-pocket structures are replicated from UV-transparent molds. The fabrication of UV-transparent molds can include providing a substrate with pedestals, fabricating a lens on each pedestal using a step-and-repeat process, replicating an intermediate mold from the substrate with pedestals having lenses on the pedestals, and replicating a UV-transparent mold from the intermediate mold. The fabrication of UV-transparent molds can also include providing a substrate with holes, fabricating a lens in each hole and replicating a UV-transparent mold from the substrate with the holes having the lenses. | |||
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12 | US2018144710A1 |
System and Method for Protecting a Liquid Crystal Display by Controlling Ion Migration
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Publication/Patent Number: US2018144710A1 | Publication Date: 2018-05-24 | Application Number: 15/357,920 | Filing Date: 2016-11-21 | Inventor： Fan, Regis Tai, Dyson Hsin-chih Qian, Yin Zhang, Ming Cellek, Oray Orkun Weng, Libo Walker, Christopher Morgan | Assignee: OmniVision Technologies, Inc. | IPC: G02F1/137 | Abstract: A liquid crystal display includes a display area and a border area at least partially surrounding the display area, where the display area displays images for viewing and the border area displays display-protection images, which are used to control ion migration in the liquid crystal layer. In a more particular embodiment, the border area displays a series of checkerboard pattern(s), where the checkerboard patterns can alternate between initial and inverted values. The display-protection images protect the liquid crystal display from migrating ions accumulating in particular regions of the pixel array and causing permanent defects in the display area. A liquid crystal display that includes a liquid crystal alignment layer having a plurality of liquid crystal alignment directions is also disclosed. The customized liquid crystal alignment director(s) over the border area promote ion migration away from the display area. | |||
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13 | US2018143498A1 |
System and Method for Protecting a Liquid Crystal Display by Controlling Ion Migration
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Publication/Patent Number: US2018143498A1 | Publication Date: 2018-05-24 | Application Number: 15/428,307 | Filing Date: 2017-02-09 | Inventor： Fan, Regis Tai, Dyson Hsin-chih Qian, Yin Zhang, Ming Cellek, Oray Orkun Weng, Libo Walker, Christopher Morgan | Assignee: OmniVision Technologies, Inc. | IPC: G02F1/1337 | Abstract: A liquid crystal display includes a display area and a border area at least partially surrounding the display area, where the display area displays images for viewing and the border area displays display-protection images, which are used to control ion migration in the liquid crystal layer. In a more particular embodiment, the border area displays a series of checkerboard pattern(s), where the checkerboard patterns can alternate between initial and inverted values. The display-protection images protect the liquid crystal display from migrating ions accumulating in particular regions of the pixel array and causing permanent defects in the display area. A liquid crystal display that includes a liquid crystal alignment layer having a plurality of liquid crystal alignment directions is also disclosed. The customized liquid crystal alignment director(s) over the border area promote ion migration away from the display area. | |||
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14 | US10002215B2 |
Arrayed imaging systems having improved alignment and associated methods
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Publication/Patent Number: US10002215B2 | Publication Date: 2018-06-19 | Application Number: 15/236,833 | Filing Date: 2016-08-15 | Inventor： Duerksen, Gary L. Macon, Kenneth Ashley Hepp, Michael Cormack, Robert Schwartz, Brian Meloni, Mark Kubala, Kenneth Rauker, Goran M. Mader, John J. He, James Rhodes, Howard E. Combs, Donald Tamayo, Inga Linnen, Christopher J. Tachihara, Satoru Scepanovic, Miodrag Johnson, Gregory E. Fan, Regis S. Dobbs, Dennis W. Chumachenko, Vladislav V. Barnes, Iv George C. Silveira, Paulo E. X. Dowski, Edward R. | Assignee: OmniVision Technologies, Inc. | IPC: H04N5/335 | Abstract: Arrayed imaging systems include an array of detectors formed with a common base and a first array of layered optical elements, each one of the layered optical elements being optically connected with a detector in the array of detectors. |
