Patents by Inventor Yuet Wing Li
Yuet Wing Li has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11386861Abstract: A liquid crystal on silicon panel including a plurality of driving circuits is provided. Each of the driving circuits includes a first driving route and a second driving route. The first driving route and the second driving route are configured to drive corresponding subpixel electrodes and respectively determine display content of a first wobulation image and a second wobulation image. In addition, a projection apparatus including the liquid crystal on silicon panel is also provided.Type: GrantFiled: October 29, 2020Date of Patent: July 12, 2022Assignee: Himax Display, Inc.Inventors: Yuet-Wing Li, Shun-Tai Huang
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Patent number: 11249235Abstract: A light guide module and an augmented reality (AR) apparatus are disclosed. The AR apparatus includes a display module and the light guide module. The light guide module includes a first light guide plate and a second light guide plate. The first light guide plate has a light receiving area for receiving optical input light with a predetermined incident angle and a light outputting area for outputting optical input light. The second light guide plate is disposed on the first light guide plate, and has dichroic surfaces for selectively transmitting or reflecting the optical input light.Type: GrantFiled: August 12, 2019Date of Patent: February 15, 2022Assignee: Himax Display, Inc.Inventors: Chien-Tang Wang, Yuet-Wing Li
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Publication number: 20210358436Abstract: A liquid crystal on silicon panel including a plurality of driving circuits is provided. Each of the driving circuits includes a first driving route and a second driving route. The first driving route and the second driving route are configured to drive corresponding subpixel electrodes and respectively determine display content of a first wobulation image and a second wobulation image. In addition, a projection apparatus including the liquid crystal on silicon panel is also provided.Type: ApplicationFiled: October 29, 2020Publication date: November 18, 2021Applicant: Himax Display, Inc.Inventors: Yuet-Wing Li, Shun-Tai Huang
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Patent number: 11029908Abstract: A head mounted display (HMD) apparatus is provided. The HMD apparatus includes a first lens, a second lens, a first micro-display disposed on the first lens, a second micro-display disposed on the second lens, a first light source, a second light source, and an eyeglass frame. A first side of the first micro-display corresponding to a first rubbing alignment processing direction and a first side of the second micro-display corresponding to a second rubbing alignment processing direction are symmetric with respect to a center line of the eyeglass frame between the first lens and the second lens. A first incident light emitted by the first light source is obliquely emitted from the first side of the first micro-display toward the first micro-display and a second incident light emitted by the second light source is obliquely emitted from the first side of the second micro-display toward the second micro-display.Type: GrantFiled: August 28, 2019Date of Patent: June 8, 2021Assignee: Himax Display, Inc.Inventors: Chi-Wen Lin, Wen-Hsu Chen, Yuet-Wing Li, Kuan-Hsu Fan Chiang
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Publication number: 20210064320Abstract: A head mounted display (HMD) apparatus is provided. The HMD apparatus includes a first lens, a second lens, a first micro-display disposed on the first lens, a second micro-display disposed on the second lens, a first light source, a second light source, and an eyeglass frame. A first side of the first micro-display corresponding to a first rubbing alignment processing direction and a first side of the second micro-display corresponding to a second rubbing alignment processing direction are symmetric with respect to a center line of the eyeglass frame between the first lens and the second lens. A first incident light emitted by the first light source is obliquely emitted from the first side of the first micro-display toward the first micro-display and a second incident light emitted by the second light source is obliquely emitted from the first side of the second micro-display toward the second micro-display.Type: ApplicationFiled: August 28, 2019Publication date: March 4, 2021Inventors: Chi-Wen LIN, Wen-Hsu CHEN, Yuet-Wing LI, Kuan-Hsu FAN CHIANG
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Publication number: 20210048574Abstract: A light guide module and an augmented reality (AR) apparatus are disclosed. The AR apparatus includes a display module and the light guide module. The light guide module includes a first light guide plate and a second light guide plate. The first light guide plate has a light receiving area for receiving optical input light with a predetermined incident angle and a light outputting area for outputting optical input light. The second light guide plate is disposed on the first light guide plate, and has dichroic surfaces for selectively transmitting or reflecting the optical input light.Type: ApplicationFiled: August 12, 2019Publication date: February 18, 2021Inventors: Chien-Tang WANG, Yuet-Wing LI
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Patent number: 10777153Abstract: A liquid crystal on silicon display device is provided. Multiple grey levels of a pixel are transformed into multiple color values. The grey levels respectively correspond to multiple first sub-pixels. For each of the first sub-pixels, at least one parameter of a reflectance fitting function is obtained according to the color values, a gamma correction is performed according to the corresponding grey level to obtain a reflectance, and a pixel voltage is calculated according to the at least one parameter and the reflectance. The pixel voltage is applied to a pixel electrode of the corresponding first sub-pixel.Type: GrantFiled: May 16, 2019Date of Patent: September 15, 2020Assignee: Himax Display, Inc.Inventors: Yuet-Wing Li, Wen-Hsu Chen
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Patent number: 10685619Abstract: A driving method for a display apparatus is provided. The display apparatus includes data lines, scan lines and pixel units. Each pixel unit includes a pixel electrode and a common electrode. The driving method includes the following steps: when the display apparatus enters from a first frame period into a second frame period, switching a voltage level of a common voltage from a first common voltage level to a second common voltage level, and simultaneously changing a voltage level of the pixel electrode; during a data period of the second frame period, driving the scan lines according to a scanning sequence so as to write display data transmitted by data lines into the pixel units; and during a reset period of the second frame period, driving the scan lines according to the scanning sequence so as to write reset data transmitted by the data lines into the pixel units.Type: GrantFiled: March 21, 2018Date of Patent: June 16, 2020Assignees: Himax Display, Inc., HIMAX TECHNOLOGIES LIMITEDInventors: Yuet Wing Li, Kuan-Hsu Fan-Chiang, Yih-Long Tseng, Ming-Cheng Chiu
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Patent number: 10684514Abstract: A display panel includes a first substrate and a second substrate assembled together with a sealant, and the resultant assembly encloses a display medium layer. An organic alignment layer and an inorganic alignment layer are disposed between the first substrate and the display medium layer. A first gap exists between the inorganic alignment layer and the sealant, and the organic alignment layer is located in the first gap. The inorganic alignment layer may contact the display medium layer, and the organic alignment layer may be in contact with the display medium layer in the first gap. A portion of the organic alignment layer may overlap the inorganic alignment layer. The inorganic alignment layer may be coated with a coating of hydrophobic molecules. The display panel may further include an opposite organic alignment layer and an opposite inorganic alignment layer between the second substrate and the display medium layer.Type: GrantFiled: June 8, 2018Date of Patent: June 16, 2020Assignee: Himax Display, Inc.Inventors: Po-Hung Pan, Hsing-Lung Wang, Kuan-Hsu Fan-Chiang, Yuet-Wing Li, Ya-Jou Chen, Tung-Feng Wu, Chia-Yeh Tsai
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Patent number: 10598985Abstract: A front-lit display includes a light source, a coupling lens, a first and a second polarizers, a light guide plate, and a reflective display panel. The light guide plate has a first surface, a second surface, a side surface connecting the first and second surfaces, and light guiding microstructures located between the first and second surfaces. The first polarizer, the coupling lens, and the light source are sequentially disposed at a side of the side surface. Light emitting elements of the light source that emit light beams of different colors are arranged along a first direction instead of a second direction. The first direction is parallel to the side surface and the first surface, and the second direction is parallel to the side surface and perpendicular to the first surface. The coupling lens includes vertical columnar structures arranged along the first direction and respectively extending along the second direction.Type: GrantFiled: March 20, 2019Date of Patent: March 24, 2020Assignee: Himax Display, Inc.Inventors: Kuan-Yu Chen, Yuet-Wing Li, Kuan-Hsu Fan-Chiang, Hsien-Chang Tsai
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Publication number: 20190377212Abstract: A display panel includes a first substrate and a second substrate assembled together with a sealant, and the resultant assembly encloses a display medium layer. An organic alignment layer and an inorganic alignment layer are disposed between the first substrate and the display medium layer. A first gap exists between the inorganic alignment layer and the sealant, and the organic alignment layer is located in the first gap. The inorganic alignment layer may contact the display medium layer, and the organic alignment layer may be in contact with the display medium layer in the first gap. A portion of the organic aligmnent layer may overlap the inorganic alignment layer. The inorganic alignment layer may be coated with a coating of hydrophobic molecules. The display panel may further include an opposite organic alignment layer and an opposite inorganic alignment layer between the second substrate and the display medium layer.Type: ApplicationFiled: June 8, 2018Publication date: December 12, 2019Applicant: Himax Display, Inc.Inventors: Po-Hung Pan, Hsing-Lung Wang, Kuan-Hsu Fan-Chiang, Yuet-Wing Li, Ya-Jou Chen, Tung-Feng Wu, Chia-Yeh Tsai
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Patent number: 10304396Abstract: An image processing method includes detecting one or more edge regions in a plurality of input image frames; detecting movement of the edge region in the input image frames to generate a movement detecting result; and generating a plurality of output image frames by selectively smoothing at least a portion of the edge region at least according to the movement detecting result.Type: GrantFiled: June 23, 2017Date of Patent: May 28, 2019Assignee: Himax Display, Inc.Inventors: Kuo-Jung Lee, Mao-Jung Chung, Yuet Wing Li, Wen-Hsu Chen
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Patent number: 10303011Abstract: The present invention provides a liquid crystal display (LCD) panel. The LCD panel comprises: an electrode layer. The electrode layer comprises: a plurality of pixels, each pixel comprising a plurality of types of sub-pixels, each type of sub-pixel having a ladder pattern with a plurality of sectors, wherein each sector comprises a plurality of units and each sector is shifted a unit width with each other.Type: GrantFiled: September 27, 2017Date of Patent: May 28, 2019Assignee: Himax Display, Inc.Inventors: Yuet Wing Li, Wen-Hsu Chen
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Publication number: 20190147814Abstract: A display device and an operation method thereof are provided. The display device includes a display panel and a light source circuit. The display panel includes a color filter layer and a plurality of pixel circuits. The pixel circuits respectively include a first preload switch, a second preload switch, a first storage capacitor, a second storage capacitor, a first driving switch, a second driving switch, and a pixel element. The light source circuit includes a dimming circuit and at least one light-emitting element. The dimming circuit drives the light-emitting element to generate a light according to a duty ratio related to a response time of the pixel elements of the pixel circuits, wherein the light passes through the color filter layer and the pixel elements of the pixel circuits to display an image.Type: ApplicationFiled: May 4, 2018Publication date: May 16, 2019Applicant: Himax Display, Inc.Inventors: Yuet-Wing Li, Wen-Hsu Chen
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Patent number: 10247870Abstract: A wearable display apparatus includes a reflective light modulator having a front, a light guide plate placed at the front of the light modulator, a plurality of monochromatic light sources of different colors, and an optical assembly. The light guide plate has a first and a second major surface opposite to each other, and a light incidence surface connected with the first and second major surfaces, the light guide plate directing light received at the light incidence surface through the first major surface toward the light modulator. The monochromatic light sources are operable to emit light of different colors in a sequential manner. The optical assembly is arranged adjacent to the light incidence surface of the light guide plate, and is configured to homogenize and distribute the light emitted by each of the monochromatic light sources across the light incidence surface.Type: GrantFiled: September 11, 2015Date of Patent: April 2, 2019Assignee: HIMAX DISPLAY, INC.Inventors: Kuan-Yu Chen, Yuet Wing Li
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Patent number: 10142602Abstract: A fabrication method of a polarization grating is provided. The method includes providing a polarization-sensitive material; and causing two orthogonally polarized lights to scan the polarization-sensitive material and to meet on the polarization-sensitive material.Type: GrantFiled: May 31, 2017Date of Patent: November 27, 2018Assignees: The Hong Kong University of Science and Technology, Himax Display, Inc.Inventors: Hoi-Sing Kwok, Li Tan, Yuet-Wing Li
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Publication number: 20180330691Abstract: A driving method for a display apparatus is provided. The display apparatus includes data lines, scan lines and pixel units. Each pixel unit includes a pixel electrode and a common electrode. The driving method includes the following steps: when the display apparatus enters from a first frame period into a second frame period, switching a voltage level of a common voltage from a first common voltage level to a second common voltage level, and simultaneously changing a voltage level of the pixel electrode; during a data period of the second frame period, driving the scan lines according to a scanning sequence so as to write display data transmitted by data lines into the pixel units; and during a reset period of the second frame period, driving the scan lines according to the scanning sequence so as to write reset data transmitted by the data lines into the pixel units.Type: ApplicationFiled: March 21, 2018Publication date: November 15, 2018Inventors: Yuet Wing LI, Kuan-Hsu Fan-Chiang, Yih-Long Tseng, Ming-Cheng Chiu
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Publication number: 20180307105Abstract: The present invention provides a liquid crystal display (LCD) panel. The LCD panel comprises: an electrode layer. The electrode layer comprises: a plurality of pixels, each pixel comprising a plurality of types of sub-pixels, each type of sub-pixel having a ladder pattern with a plurality of sectors, wherein each sector comprises a plurality of units and each sector is shifted a unit width with each other.Type: ApplicationFiled: September 27, 2017Publication date: October 25, 2018Inventors: Yuet Wing LI, Wen-Hsu Chen
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Patent number: 10095064Abstract: A reflective display apparatus is provided, which includes a liquid-crystal-on-silicon (LCOS) display module and a compensation layer. The LCOS display module has a liquid crystal layer. The liquid crystal layer includes liquid crystal cells, each having a beta angle ranging from about 9 degrees to about 11 degrees and a twist angle ranging from about 84 degrees to about 88 degrees relative to the beta angle. The compensation layer is disposed on the LCOS display module for compensating retardation of the liquid crystal layer.Type: GrantFiled: August 18, 2015Date of Patent: October 9, 2018Assignee: HIMAX DISPLAY, INC.Inventors: Wen-Hsu Chen, Yuet-Wing Li
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Publication number: 20180122317Abstract: An image processing method includes detecting one or more edge regions in a plurality of input image frames; detecting movement of the edge region in the input image frames to generate a movement detecting result; and generating a plurality of output image frames by selectively smoothing at least a portion of the edge region at least according to the movement detecting result.Type: ApplicationFiled: June 23, 2017Publication date: May 3, 2018Inventors: Kuo-Jung Lee, Mao-Jung Chung, Yuet Wing LI, Wen-Hsu Chen