Patents by Inventor Cheng Lo

Cheng Lo 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).

  • Patent number: 12196968
    Abstract: A head-mounted display apparatus-includes a lens frame, a lens, and a display module. Both the lens and the display module are disposed on the lens frame. The lens includes a first part and a second part. The first part is adjacent to the second part. The first part is configured to transmit ambient light. The second part is configured to transmit the ambient light and display light emitted by the display module. A ratio of the transmittance of the second part to the transmittance of the first part is within a threshold range. In one embodiment, the threshold range may be between 0.5 to 1.5.
    Type: Grant
    Filed: July 17, 2020
    Date of Patent: January 14, 2025
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Chunjing Mao, Cheng Lo
  • Patent number: 11914155
    Abstract: An augmented reality device includes an eyeglass frame and a combiner mounted on the eyeglass frame. The combiner includes an inner surface and an outer surface disposed opposite the inner surface. The device further includes an active shutter lens mounted on the combiner and an image projector mounted on the eyeglass frame and configured to project display light to the combiner such that a first portion of the display light is emitted from the inner surface of the combiner and a second portion of the display light is emitted from the outer surface of the combiner. The device additionally includes a processor coupled to the image projector and the active shutter lens. The active shutter lens is configured to shield the display light emitted from the outer surface of the combiner. The combiner is configured to emit ambient light from the inner surface thereof.
    Type: Grant
    Filed: March 18, 2021
    Date of Patent: February 27, 2024
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Shuaishuai Zhu, Jiuxing Wang, Cheng Lo
  • Publication number: 20230367122
    Abstract: An optical imaging system and a head-mounted display apparatus are provided. The optical imaging system includes a display and a lens group. The display is located on a side that is of the lens group and that is away from a human eye. The display includes a display panel and a cover plate. The cover plate is disposed on a side that is of the display panel and that faces the lens group. A thickness range of the cover plate is related to an equivalent image focal length (f?) of the lens group, a refractive index (n) of the cover plate, and a distance of distinct vision (a) for the human eye.
    Type: Application
    Filed: August 19, 2021
    Publication date: November 16, 2023
    Inventors: Cheng LO, Yunfeng JIN
  • Publication number: 20230129018
    Abstract: An augmented reality device includes an eyeglass frame and a combiner mounted on the eyeglass frame. The combiner includes an inner surface and an outer surface disposed opposite the inner surface. The device further includes an active shutter lens mounted on the combiner and an image projector mounted on the eyeglass frame and configured to project display light to the combiner such that a first portion of the display light is emitted from the inner surface of the combiner and a second portion of the display light is emitted from the outer surface of the combiner. The device additionally includes a processor coupled to the image projector and the active shutter lens. The active shutter lens is configured to shield the display light emitted from the outer surface of the combiner. The combiner is configured to emit ambient light from the inner surface thereof.
    Type: Application
    Filed: March 18, 2021
    Publication date: April 27, 2023
    Inventors: Shuaishuai Zhu, Jiuxing Wang, Cheng Lo
  • Publication number: 20220283437
    Abstract: A head-mounted display apparatus-includes a lens frame, a lens, and a display module. Both the lens and the display module are disposed on the lens frame. The lens includes a first part and a second part. The first part is adjacent to the second part. The first part is configured to transmit ambient light. The second part is configured to transmit the ambient light and display light emitted by the display module. A ratio of the transmittance of the second part to the transmittance of the first part is within a threshold range. In one embodiment, the threshold range may be between 0.5 to 1.5.
    Type: Application
    Filed: July 17, 2020
    Publication date: September 8, 2022
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Chunjing MAO, Cheng LO
  • Patent number: 9858872
    Abstract: An electronic is provided. An input unit provides a multimedia content. An image processor transforms the multimedia content into frame data. A display unit displays images including blue pixels, green pixels, and red pixels. A backlight unit generates a source light. A source light includes a deep blue-light of a low blue waveband and a far blue-light of a high blue waveband. A display panel transforms the source light into the images based on the frame data and emits the images through a surface. An optical path travels through the backlight unit and the surface. A deep blue-light filter is arranged in the optical path through which the source light passes, for restricting a light transmission rate in the low blue waveband. The image processor adjusts a color hue of the frame data to be transformed by the display panel.
    Type: Grant
    Filed: July 15, 2015
    Date of Patent: January 2, 2018
    Assignee: HTC CORPORATION
    Inventors: Yang-Lin Chen, Cheng Lo, Fu-Tsung Chang, Hsi-Chieh Peng, Yu-Chun Peng
  • Publication number: 20170018239
    Abstract: An electronic is provided. An input unit provides a multimedia content. An image processor transforms the multimedia content into frame data. A display unit displays images including blue pixels, green pixels, and red pixels. A backlight unit generates a source light. A source light includes a deep blue-light of a low blue waveband and a far blue-light of a high blue waveband. A display panel transforms the source light into the images based on the frame data and emits the images through a surface. An optical path travels through the backlight unit and the surface. A deep blue-light filter is arranged in the optical path through which the source light passes, for restricting a light transmission rate in the low blue waveband. The image processor adjusts a color hue of the frame data to be transformed by the display panel.
    Type: Application
    Filed: July 15, 2015
    Publication date: January 19, 2017
    Applicant: HTC Corporation
    Inventors: Yang-Lin CHEN, Cheng LO, Fu-Tsung CHANG, Hsi-Chieh PENG, Yu-Chun PENG
  • Publication number: 20160178907
    Abstract: The disclosure provides a display of a head-mounted electronic device suitable for displaying image information to a user in a space formed by the head-mounted electronic device and a head of the user when the head-mounted electronic device is mounted on the user's head. The display includes a display panel and a light adjusting element. The display panel has a display region for displaying the image information. The light adjusting element is disposed on the display region to change a direction of light emitted from the display panel, so as to mitigate the screen-door effect and improve the displaying quality of the display.
    Type: Application
    Filed: May 27, 2015
    Publication date: June 23, 2016
    Inventors: Chih-Lin Chang, Cheng Lo, Chun-Hung Chen
  • Patent number: 8933915
    Abstract: A display apparatus, an integrated circuit and method thereof are disclosed. The display apparatus includes a frame buffer, a controller circuit, and a display driver circuit. The frame buffer is configured to retain a plurality of image frames to be displayed. The controller circuit, coupled to the frame buffer, is configured to determine whether a change in the image frames has occurred and whether a refresh time is expired. The display driver circuit, operatively coupled to the frame buffer and adapted to couple to an active display device, is configured to receive the image frames to be displayed from the frame buffer and dynamically refreshing the active display device when the change is determined or when a refresh time is expired.
    Type: Grant
    Filed: August 13, 2012
    Date of Patent: January 13, 2015
    Assignee: HTC Corporation
    Inventors: Hsi-Chieh Peng, Cheng Lo, Jih-Hsin Huang, Hsi-Cheng Yeh, Chia-Chu Ho
  • Patent number: 8824811
    Abstract: A portable electronic device is provided. The portable electronic device includes a processor for providing encoding data and an LCD module coupled to the processor. The processor includes an encoder for encoding a frame data to generate the encoding data. The LCD module includes a driver and an LCD coupled to the driver. The driver includes a decoder for decoding the encoding data to obtain an image data. The LCD displays the image data.
    Type: Grant
    Filed: March 6, 2012
    Date of Patent: September 2, 2014
    Assignee: HTC Corporation
    Inventors: Jih-Hsin Huang, Hsi-Chieh Peng, Cheng Lo, Hsi-Cheng Yeh
  • Publication number: 20130235054
    Abstract: A portable electronic device is provided. The portable electronic device includes a processor for providing encoding data and an LCD module coupled to the processor. The processor includes an encoder for encoding a frame data to generate the encoding data. The LCD module includes a driver and an LCD coupled to the driver. The driver includes a decoder for decoding the encoding data to obtain an image data. The LCD displays the image data.
    Type: Application
    Filed: March 6, 2012
    Publication date: September 12, 2013
    Applicant: HTC CORPORATION
    Inventors: Jih-Hsin HUANG, Hsi-Chieh PENG, Cheng LO, Hsi-Cheng YEH
  • Publication number: 20130106872
    Abstract: A display apparatus, an integrated circuit and method thereof are disclosed. The display apparatus includes a frame buffer, a controller circuit, and a display driver circuit. The frame buffer is configured to retain a plurality of image frames to be displayed. The controller circuit, coupled to the frame buffer, is configured to determine whether a change in the image frames has occurred and whether a refresh time is expired. The display driver circuit, operatively coupled to the frame buffer and adapted to couple to an active display device, is configured to receive the image frames to be displayed from the frame buffer and dynamically refreshing the active display device when the change is determined or when a refresh time is expired.
    Type: Application
    Filed: August 13, 2012
    Publication date: May 2, 2013
    Applicant: HTC CORPORATION
    Inventors: Hsi-Chieh PENG, Cheng LO, Jih-Hsin HUANG, Hsi-Cheng YEH, Chia-Chu HO
  • Patent number: 8120592
    Abstract: A touch sensing substrate includes a substrate, first and second sensing series, a first dielectric layer, first and second dummy sensing series, a second dielectric layer, and a common electrode. The first sensing series are electrically insulated from each other, and so are the second sensing series. The first and the second sensing series are covered by the first dielectric layer. The first and the second dummy sensing series are disposed on the first dielectric layer. The first and the second dummy sensing series are disposed above the first and the second sensing series, respectively, and the dummy sensing series and the sensing series corresponding thereto have the same potential. The first and the second dummy sensing series are covered by the second dielectric layer. The common electrode is disposed on the second dielectric layer. A touch sensing liquid crystal display having the above-mentioned touch sensing substrate is also provided.
    Type: Grant
    Filed: May 13, 2009
    Date of Patent: February 21, 2012
    Assignee: Au Optronics Corporation
    Inventors: Cheng Lo, Ching-Sheng Cheng, Yung-Lun Lin, Chih-Jen Hu
  • Patent number: 8085354
    Abstract: A pixel structure is disclosed. The pixel structure is suitable to be disposed on a substrate and includes a first pixel electrode, a second pixel electrode and a top gate TFT. The first pixel electrode and the second pixel electrode are disposed over the substrate, wherein the first pixel electrode and the second pixel electrode are separated from each other. The top gate TFT is disposed between the substrate and the first pixel electrode and includes a patterned semiconductor layer and a gate.
    Type: Grant
    Filed: February 10, 2009
    Date of Patent: December 27, 2011
    Assignee: Au Optronics Corporation
    Inventors: Cheng Lo, Shih-Chyuan Fan Jiang, Ching-Sheng Cheng, Ching-Huan Lin, Chih-Jen Hu, Chih-Ming Chang
  • Patent number: 8013964
    Abstract: A liquid crystal display device uses a first quarter-wave retardation film and a hybrid aligned nematic film to reduce light leakage in dark state for reaching high contrast ratio, and uses multiple-gamma IC to provide different gamma-curve signals for pixels of different colors to solve color shift problem. In addition, the liquid crystal display device may use a second quarter-wave retardation film to reduce light leakage when viewed in a wide angle so as to further provide higher contrast ratio.
    Type: Grant
    Filed: June 29, 2009
    Date of Patent: September 6, 2011
    Assignee: AU Optronics Corp.
    Inventors: Cheng Lo, Yung-Lun Lin, Ching-Sheng Cheng, Chih-Jen Hu
  • Patent number: 7956948
    Abstract: A pixel structure formed on a substrate and electrically connected with a scan line and a data line, and including a semiconductor pattern and a pixel electrode is provided. The semiconductor pattern includes at least two channel areas, at least one doping area, a source area, and a drain area. The channel areas are located below the scan line and have different aspect ratios. The doping area is connected between the channel areas. The pixel electrode electrically connects the drain area, the source area is connected between one of the channel areas and the data line, and the drain area is connected between the other channel area and the pixel electrode. The scan line has different widths above different channel areas, and a length of each channel area is substantially equal to the width of the scan line.
    Type: Grant
    Filed: October 13, 2009
    Date of Patent: June 7, 2011
    Assignee: Au Optronics Corporation
    Inventors: Chia-Chiang Hsiao, Cheng Lo, Chih-Jen Hu
  • Patent number: 7924352
    Abstract: A pixel structure of a liquid crystal display panel includes a first transparent substrate, a first data line, a second data line, a transparent electrode, and a compensating conducting pattern layer. In a display region, the first side of the transparent electrode and the first data line partially overlap, forming a first parasitic capacitor, the second side of the transparent electrode and the second data line partially overlap, forming a second parasitic capacitor smaller than the first parasitic capacitor. In a non-display region, the first side of the transparent electrode and the first data line partially overlap, forming a third parasitic capacitor, and the second side of the transparent electrode and the compensating conducing pattern layer partially overlap, forming a fourth parasitic capacitor. The total parasitic capacitance of the first and the third parasitic capacitors and the total parasitic capacitance of the second and the fourth parasitic capacitors are substantially equal.
    Type: Grant
    Filed: November 12, 2008
    Date of Patent: April 12, 2011
    Assignee: AU Optronics Corp.
    Inventors: Chia-Chiang Hsiao, Cheng Lo, Ching-Sheng Cheng, Chih-Jen Hu
  • Publication number: 20100149461
    Abstract: A liquid crystal display device uses a first quarter-wave retardation film and a hybrid aligned nematic film to reduce light leakage in dark state for reaching high contrast ratio, and uses multiple-gamma IC to provide different gamma-curve signals for pixels of different colors to solve color shift problem. In addition, the liquid crystal display device may use a second quarter-wave retardation film to reduce light leakage when viewed in a wide angle so as to further provide higher contrast ratio.
    Type: Application
    Filed: June 29, 2009
    Publication date: June 17, 2010
    Inventors: Cheng Lo, Yung-Lun Lin, Ching-Sheng Cheng, Chih-Jen Hu
  • Patent number: 7728917
    Abstract: A pixel structure formed on a substrate and electrically connected with a scan line and a data line, and including a semiconductor pattern and a pixel electrode is provided. The semiconductor pattern includes at least two channel areas, at least one doping area, a source area, and a drain area. The channel areas are located below the scan line and have different aspect ratios. The doping area is connected between the channel areas. The pixel electrode electrically connects the drain area, the source area is connected between one of the channel areas and the data line, and the drain area is connected between the other channel area and the pixel electrode. The scan line has different widths above different channel areas, and a length of each channel area is substantially equal to the width of the scan line.
    Type: Grant
    Filed: April 7, 2008
    Date of Patent: June 1, 2010
    Assignee: Au Optronics Corporation
    Inventors: Chia-Chiang Hsiao, Cheng Lo, Chih-Jen Hu
  • Publication number: 20100128000
    Abstract: A touch sensing substrate includes a substrate, first and second sensing series, a first dielectric layer, first and second dummy sensing series, a second dielectric layer, and a common electrode. The first sensing series are electrically insulated from each other, and so are the second sensing series. The first and the second sensing series are covered by the first dielectric layer. The first and the second dummy sensing series are disposed on the first dielectric layer. The first and the second dummy sensing series are disposed above the first and the second sensing series, respectively, and the dummy sensing series and the sensing series corresponding thereto have the same potential. The first and the second dummy sensing series are covered by the second dielectric layer. The common electrode is disposed on the second dielectric layer. A touch sensing liquid crystal display having the above-mentioned touch sensing substrate is also provided.
    Type: Application
    Filed: May 13, 2009
    Publication date: May 27, 2010
    Applicant: AU OPTRONICS CORPORATION
    Inventors: Cheng Lo, Ching-Sheng Cheng, Yung-Lun Lin, Chih-Jen Hu