Patents by Inventor CHENG-HUA YU

CHENG-HUA YU 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: 11079638
    Abstract: In one example, a display device may include a display panel having a light guide plate, a printed circuit board (PCB) to generate a driving signal to drive the display panel, a driving integrated circuit (IC) mounted on the display panel to process the driving signal, a timing controller (TCON) integrated into the driving IC to control driving of the display panel, and a flexible printed circuit to electrically connect the driving IC and the PCB. The PCB may be disposed behind the driving IC.
    Type: Grant
    Filed: June 13, 2018
    Date of Patent: August 3, 2021
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Cheng-Hua Yu, Feng-Cheng Lin, Shan-Chih Chen, Chih-Ting Lai
  • Publication number: 20210124203
    Abstract: In one example, a display device may include a display panel having a light guide plate, a printed circuit board (PCB) to generate a driving signal to drive the display panel, a driving integrated circuit (IC) mounted on the display panel to process the driving signal, a timing controller (TCON) integrated into the driving IC to control driving of the display panel, and a flexible printed circuit to electrically connect the driving IC and the PCB. The PCB may be disposed behind the driving IC.
    Type: Application
    Filed: June 13, 2018
    Publication date: April 29, 2021
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Cheng-Hua Yu, Feng-Cheng Lin, Shan-Chih Chen, Chih-Ting Lai
  • Publication number: 20210116717
    Abstract: The present subject matter relates to techniques for selectively rendering content in 2D view and 3D view, for example, based on a choice of the user. In an example, a display may include a set of light sources and a 3D panel that may further include a 3D lens. In one example, the 3D lens may be selectively positionable in a first position where the 3D lens is positioned in a path of light emitted by the set of light sources.
    Type: Application
    Filed: June 26, 2018
    Publication date: April 22, 2021
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Kuan-Ting Wu, Cheng-Hua Yu, Chi-Hao Chang
  • Publication number: 20210035481
    Abstract: A display device includes pixels, a serial-to-parallel converter (SPC), a row driver, a column driver, and a switch. The pixels are arranged in rows and columns which include a first column and a first row. A first pixel resides at an intersection of the first row and first column. The SPC extracts, from a signal sent by a graphics controller, pixel data and a command. The row driver initiates a refresh of the pixels residing in the first row based on the pixel data. The column driver transmits the pixel data to the first column. During the refresh, the switch allows transmission of the pixel data to the first pixel when the command indicates that the first pixel is to be refreshed and prevents transmission of pixel data to the first pixel when the command indicates that the first pixel is not to be refreshed.
    Type: Application
    Filed: April 24, 2018
    Publication date: February 4, 2021
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Lee Atkinson, Cheng-Hua Yu
  • Publication number: 20200386364
    Abstract: Examples of a display element corresponding to a pixel of a display, are described. In one example, the display element may include a rotatable component. The rotatable component may be provided with a first sub-element and a second sub-element. The first sub-element and the second sub-element are such that they, respectively, have different type of display properties.
    Type: Application
    Filed: February 23, 2018
    Publication date: December 10, 2020
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Kuan-Ting Wu, Wei-Chung Chen, Cheng-Hua Yu
  • Patent number: 10747293
    Abstract: In one example, a timing controller is described, which may include a receiver to receive input data having an input signal from a source unit. The timing controller may include a data control unit to enable panel self-refresh (PSR) mode when the input signal is within a first voltage range and disable the PSR mode when the input signal is within a second voltage range. The first voltage range being different from the second voltage range. The timing controller may include a transmitter to transmit the input data to a display based on an output of the data control unit.
    Type: Grant
    Filed: January 23, 2017
    Date of Patent: August 18, 2020
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Cheng-Hua Yu, Hogan Yeh
  • Patent number: 10274773
    Abstract: In one example in accordance with the present disclosure a device is described. The device includes a first electrode. The device also includes a second electrode. The device also includes multiple polymer dispersed liquid crystals (PDLCs). The multiple PDLCs are disposed between the first and the second electrode and are of varying height.
    Type: Grant
    Filed: July 30, 2015
    Date of Patent: April 30, 2019
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Kuan-Ting Wu, Wei Kuang Chu, Cheng-Hua Yu
  • Publication number: 20190041956
    Abstract: In one example, a timing controller is described, which may include a receiver to receive input data having an input signal from a source unit. The timing controller may include a data control unit to enable panel self-refresh (PSR) mode when the input signal is within a first voltage range and disable the PSR mode when the input signal is within a second voltage range. The first voltage range being different from the second voltage range. The timing controller may include a transmitter to transmit the input data to a display based on an output of the data control unit.
    Type: Application
    Filed: January 23, 2017
    Publication date: February 7, 2019
    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Cheng-Hua YU, Hogan YEH
  • Publication number: 20190005891
    Abstract: Example implementations relate to an electrophoretic display (EPD) device with anti-reflective nanoparticles. For example, a display device may include a display panel to display content and an EPD device adjacent to the display panel. The EPD device provides a voltage to at least a portion of the EPD device such that positively-charged anti-reflective nanoparticles in the EPD device are moved toward a negative voltage and negatively-charged anti-reflective nanoparticles in the EPD device are moved toward a positive voltage. The content is displayed based on locations of the positively-charged anti-reflective nanoparticles and the negatively-charged anti-reflective nanoparticles in response to the voltage.
    Type: Application
    Filed: December 4, 2015
    Publication date: January 3, 2019
    Inventors: Kuan-Ting WU, Wei Kuang CHU, Wei-Chung CHEN, Cheng-Hua YU
  • Patent number: 10162211
    Abstract: The present subject matter relates to display devices. In an example implementation, a display device comprises a display unit having color pixels and tracks of a black matrix covering spaces between the color pixels. The display device also comprises a display control layer over the display unit. The display control layer has longitudinal channels separated by transparent substrates and overlapping the tracks of the black matrix in one direction. The longitudinal channels comprise a first set of channels filled with undoped bi-stable liquid crystals to control a view angle of a display from the display unit, and a second set of channels filled with doped bi-stable liquid crystals to control absorption of blue/ultraviolet (UV) light from the display unit.
    Type: Grant
    Filed: October 29, 2015
    Date of Patent: December 25, 2018
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Kuan-Ting Wu, Wei-Kuang Chu, Cheng-Hua Yu
  • Publication number: 20180224693
    Abstract: The present subject matter relates to display devices. In an example implementation, a display device comprises a display unit having color pixels and tracks of a black matrix covering spaces between the color pixels. The display device also comprises a display control layer over the display unit. The display control layer has longitudinal channels separated by transparent substrates and overlapping the tracks of the black matrix in one direction. The longitudinal channels comprise a first set of channels filled with undoped bi-stable liquid crystals to control a view angle of a display from the display unit, and a second set of channels filled with doped bi-stable liquid crystals to control absorption of blue/ultraviolet (UV) light from the display unit.
    Type: Application
    Filed: October 29, 2015
    Publication date: August 9, 2018
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Kuan-Ting Wu, Wei-Kuang Chu, Cheng-Hua Yu
  • Publication number: 20180129084
    Abstract: In one example in accordance with the present disclosure a device is described. The device includes a first electrode. The device also includes a second electrode. The device also includes multiple polymer dispersed liquid crystals (PDLCs). The multiple PDLCs are disposed between the first and the second electrode and are of varying height.
    Type: Application
    Filed: July 30, 2015
    Publication date: May 10, 2018
    Inventors: KUAN-TING WU, WEI KUANG CHU, CHENG-HUA YU