Patents by Inventor Kei-Hsiung Yang

Kei-Hsiung Yang 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).

  • Publication number: 20090290118
    Abstract: A liquid crystal display (LCD) device comprises a first substrate having a grooved surface profile; an alignment film layer of inorganic material formed on the grooved surface and having the grooved surface profile, the alignment film of inorganic material being aligned in response to an ion beam incident to the grooved surface in a direction parallel to a groove direction; a second substrate aligned opposite the first substrate for forming a plurality of LCD cells having liquid crystal (LC) material deposited therein, wherein LC molecules align parallel to the grooves for enhanced LCD performance.
    Type: Application
    Filed: July 31, 2009
    Publication date: November 26, 2009
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Minhua Lu, Kei-Hsiung Yang
  • Patent number: 7583348
    Abstract: The present invention builds a metal electrode that is controlled by the common electrode in each pixel cell. During operation, a voltage is first applied to this metal electrode to transform the liquid crystal molecule over this metal electrode from the splay state to the bend state. Next, a voltage is applied to the pixel electrode to transform the liquid crystal molecule in the whole pixel region from the splay state to the bend state.
    Type: Grant
    Filed: October 7, 2008
    Date of Patent: September 1, 2009
    Assignee: Hannstar Display Corporation
    Inventors: Kei-Hsiung Yang, Po-Sheng Shih
  • Patent number: 7570333
    Abstract: A liquid crystal display (LCD) device comprises a first substrate having a grooved surface profile; an alignment film layer of inorganic material formed on the grooved surface and having the grooved surface profile, the alignment film of inorganic material being aligned in response to an ion beam incident to the grooved surface in a direction parallel to a groove direction; a second substrate aligned opposite the first substrate for forming a plurality of LCD cells having liquid crystal (LC) material deposited therein, wherein LC molecules align parallel to the grooves for enhanced LCD performance.
    Type: Grant
    Filed: October 30, 2003
    Date of Patent: August 4, 2009
    Assignee: International Business Machines Corporation
    Inventors: Minhua Lu, Kei-Hsiung Yang
  • Patent number: 7548300
    Abstract: A fabricating method of a liquid crystal display panel provides a first substrate and a second substrate. The first substrate has a sealant used for sealing with the second substrate to form a liquid crystal cavity. The first substrate and the second substrate are placed into a chamber to perform a liquid crystal filling process. An end seal process is performed at a predetermined temperature higher than room temperature to seal the liquid crystal with a predetermined weight into the liquid crystal cavity. A liquid crystal injection method, an end seal process, and heating apparatus are also provided.
    Type: Grant
    Filed: April 22, 2005
    Date of Patent: June 16, 2009
    Assignee: HannStar Display Corp.
    Inventors: Chien-Ming Chen, Kei-Hsiung Yang
  • Publication number: 20090109359
    Abstract: A display device detects a touched position by making use of an inducing element and a counter electrode. The voltage produced by the counter electrode is able to affect a conductivity of the channel of the inducing element corresponding to the touched position. The inducing element and a readout circuit are disposed on a substrate of the display device. The counter electrode and a shielding element are both corresponded to the inducing element. The channel of the inducing element corresponding to the touched position changes the conductivity due to the voltage produced by the corresponding counter electrode, and an inducing signal is then generated. The inducing signal is furnished to the readout circuit for signal processing, and a readout signal is generated for analyzing the touched position.
    Type: Application
    Filed: October 24, 2008
    Publication date: April 30, 2009
    Inventors: Po-Sheng Shih, Po-Yang Chen, Hsuan-Lin Pan, Kei-Hsiung Yang
  • Publication number: 20090109186
    Abstract: A display device is disclosed by the present invention and is constituted by a substrate, an inducing element, and a counter electrode. The substrate comprises a pixel electrode and a first conductive line. A counter substrate faces the substrate. The inducing element is disposed on the substrate and comprises a passivation layer, which is electrically connected to the first conductive line and is disconnected to the pixel electrode. The counter electrode is disposed between the substrate and the counter substrate, which is corresponding to the inducing element with a variable gap less or equal than 1 ?m between the passivation layer and the counter electrode.
    Type: Application
    Filed: June 25, 2008
    Publication date: April 30, 2009
    Applicant: HANNSTAR DISPLAY CORP.
    Inventors: Hsuan-Lin PAN, Po-Sheng SHIH, Kei-Hsiung YANG, Po-Yang CHEN
  • Patent number: 7525620
    Abstract: A structure of an optical compensated bend nematic liquid crystal display panel is disclosed. In one embodiment, the structure includes i) a thin film transistor array substrate, wherein a first alignment layer is formed on a surface of the thin film transistor array substrate and a plurality of first spacers are disposed on the surface of the thin film transistor array substrate, ii) an opposite substrate corresponding to the thin film transistor array substrate, wherein a second alignment layer is formed on a surface of the opposite substrate and a plurality of second spacers are disposed on the surface of the opposite substrate and iii) an isolation layer disposed between the thin film transistor array substrate and the opposite substrate, wherein the isolation layer is made of a plurality of polymers with side chains of high carbon number.
    Type: Grant
    Filed: April 3, 2006
    Date of Patent: April 28, 2009
    Assignee: Hannstar Display Corporation
    Inventors: Kei-Hsiung Yang, Chien-Huang Liao, Hao-Ming Chang, Yen-Ting Chen
  • Publication number: 20090066901
    Abstract: A liquid crystal display is provided. The liquid crystal display including a first substrate having thereon a plurality of gate lines and data lines intersected to each other, so as to form a pixel surrounded thereby, a second substrate counter to the substrate, a common electrode disposed on the first substrate and having a first portion and a slit corresponding to one of the data lines and a second portion located inside the pixel, and a pixel electrode disposed between the first portion and the second portion of the common electrode, and adjacent to the first portion. The first portion of the common electrode and the pixel electrode have a first distance d1, the second portion of the common electrode and the pixel electrode have a second distance d2, and the first distance d1 is not equivalent to the second distance d2.
    Type: Application
    Filed: April 10, 2008
    Publication date: March 12, 2009
    Applicant: HANNSTAR DISPLAY CORPORATION
    Inventors: Jiunn-Shyong Lin, Po-Sheng Shih, Kei-Hsiung Yang, Tai-Shun Liao
  • Patent number: 7497611
    Abstract: A polarized light source device comprises a light source, a reflector, a transparent substrate, an antireflection layer, and a plurality of metal grid wires. The reflector surrounds the light source for reflecting the light, and has an opening for emitting the light. The transparent substrate is disposed at the opening. The antireflection layer is disposed on the transparent substrate. The metal grid wires are disposed on the antireflection layer for transmitting the light with a predetermined polarization therethrough.
    Type: Grant
    Filed: August 9, 2007
    Date of Patent: March 3, 2009
    Assignee: Hannstar Display Corp.
    Inventors: Wei Chou Chen, Kei Hsiung Yang
  • Publication number: 20090053966
    Abstract: A fabricating method of a liquid crystal display panel provides a first substrate and a second substrate in a chamber. Liquid crystal with a predetermined weight is dropped on the first substrate at a predetermined temperature higher than room temperature. The first substrate and the second substrate are assembled at the predetermined temperature to seal the liquid crystal with the predetermined weight within a liquid crystal cavity formed between the first substrate and the second substrate.
    Type: Application
    Filed: October 29, 2008
    Publication date: February 26, 2009
    Inventors: Chien-Ming CHEN, Kei-Hsiung YANG
  • Publication number: 20090033816
    Abstract: The present invention builds a metal electrode that is controlled by the common electrode in each pixel cell. During operation, a voltage is first applied to this metal electrode to transform the liquid crystal molecule over this metal electrode from the splay state to the bend state. Next, a voltage is applied to the pixel electrode to transform the liquid crystal molecule in the whole pixel region from the splay state to the bend state.
    Type: Application
    Filed: October 7, 2008
    Publication date: February 5, 2009
    Applicant: Hannstar Display Corporation
    Inventors: Kei-Hsiung Yang, Po-Sheng Shih
  • Publication number: 20080284757
    Abstract: A light pointing device employed in an input apparatus comprises a signal receiving interface and a light emitting component. The signal receiving interface is used to receive a system signal from the input apparatus. The light emitting component can generate a flashing light source whose intermittence cycle is synchronized with the reference clock cycle of the system signal Furthermore, the ratio of the intermittence cycle of the flashing light source to the reference clock cycle of the system signal is a natural number.
    Type: Application
    Filed: January 29, 2008
    Publication date: November 20, 2008
    Applicant: HANNSTAR DISPLAY CORPORATION
    Inventors: Po Yang Chen, Kei Hsiung Yang
  • Patent number: 7450209
    Abstract: In accordance with the present invention, a mteal electrode or a common electrode line (both called as Vbias electrode) is built in the pixel region. Holes passing through the pixel electrode are formed in the positions corresponding to the mteal electrode or common electrode line (both called as Vbias electrode) so as to reduce the crosswise electrical field. The liquid crystal molecule in the whole pixel region is in a splay state.
    Type: Grant
    Filed: December 27, 2004
    Date of Patent: November 11, 2008
    Assignee: Hannstar Display Corporation
    Inventors: Zhao-Hui Wu, Po-Sheng Shih, Kei-Hsiung Yang
  • Publication number: 20080266492
    Abstract: A light emitting optical film at least including a substrate, an alignment layer and a polarized light emitting liquid crystal film is provided, in which the polarized light emitting liquid crystal film includes liquid crystal and light-emitting dye. The alignment layer is located on one side of the substrate, and the polarized light emitting liquid crystal film is located on the alignment layer. The light emitting optical film can be applied to polarizing film, phase retardation film or color filter. Moreover, it is unnecessary to use conventional backlight module because overall arrangement of liquid crystal can fully emit uniform polarized light, whereby greatly reducing cost of conventional backlight module.
    Type: Application
    Filed: September 4, 2007
    Publication date: October 30, 2008
    Applicants: TAIWAN TFT LCD ASSOCIATION, CHUNGHWA PICTURE TUBES, LTD., AU OPTRONICS CORPORATION, HANNSTAR DISPLAY CORPORATION, CHI MEI OPTOELECTRONICS CORPORATION, INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE, TPO DISPLAYS CORP.
    Inventors: Yue-Shih Jeng, Kei-Hsiung Yang
  • Patent number: 7443477
    Abstract: An in-plane switching liquid crystal display, especially relative to an in-plane switching liquid crystal display with the absence of an overcoat layer is provided. The in-plane switching liquid crystal display having a first substrate, a second substrate and a liquid crystal layer sandwiched therebetween, a plurality of gate lines and data lines disposed on the first substrate, a counter electrode disposed on the second substrate and corresponding to one of the data lines, a pixel having a pixel electrode, a pair of shielding electrodes and a common electrode also disposed on the first substrate. Through the arrangement of shielding electrodes as well as the counter electrode, the coupling effect of the applied pixel voltage on the data lines is shielded.
    Type: Grant
    Filed: September 6, 2005
    Date of Patent: October 28, 2008
    Assignee: Hannstar Display Corporation
    Inventors: Jiunn-Shyong Lin, Po-Sheng Shih, Kei-Hsiung Yang, Tai-Shun Liao
  • Patent number: 7439544
    Abstract: The present invention provides a manufacturing method of an image TFT array, which includes providing a substrate including a thin film transistor region, a storage capacitor region, a pad region, and a common electrode region, forming a photoresist layer on the substrate, and performing a photolithographic and etching process by utilizing a half-tone mask to pattern the photoresist layer to define a position of a through hole on the storage capacitor region and form the photoresist layer of a first thickness on the thin film transistor region and the photoresist layer of a second thickness on the region between the thin film transistor region and the storage capacitor region, wherein the first thickness is greater than the second thickness.
    Type: Grant
    Filed: April 25, 2005
    Date of Patent: October 21, 2008
    Assignee: HannStar Display Corp.
    Inventors: Chin-Mao Lin, Kei-Hsiung Yang, Chian-Chih Hsiao
  • Publication number: 20080246905
    Abstract: Input displays are provided. A representative input display comprises a first substrate, a second substrate, a liquid crystal layer, a photo sensor, a color filter, and a light-shielding element. The liquid crystal layer accommodated in a liquid crystal space is sandwiched between transparent first and second substrates, comprising a first substrate side and a second substrate side. The photo sensor overlies the first substrate side. The color filter disposed in the liquid crystal space, over the photo sensor. The color filter comprises a first opening exposing portions of the photo sensor. The light-shielding element is disposed alongside portions of a periphery of the photo sensor.
    Type: Application
    Filed: April 6, 2007
    Publication date: October 9, 2008
    Applicant: HANNSTAR DISPLAY CORP.
    Inventors: Wei-Chou Chen, Po-Yang Chen, Kei-Hsiung Yang
  • Patent number: 7433007
    Abstract: The present invention builds a metal electrode that is controlled by the common electrode in each pixel cell. During operation, a voltage is first applied to this metal electrode to transform the liquid crystal molecule over this metal electrode from the splay state to the bend state. Next, a voltage is applied to the pixel electrode to transform the liquid crystal molecule in the whole pixel region from the splay state to the bend state.
    Type: Grant
    Filed: September 25, 2003
    Date of Patent: October 7, 2008
    Assignee: Hannistar Display Corporation
    Inventors: Kei-Hsiung Yang, Po-Sheng Shih
  • Publication number: 20080238888
    Abstract: An image detecting device is provided. The image detecting device includes a first shaft; a second shaft; a connecting shaft connected between the first and the second shafts; and an image detector mounted in one of the first shaft and the connecting shaft, wherein a first angle is formed between the first shaft and the connecting shaft, and a second angle is formed between the second shaft and the connecting shaft.
    Type: Application
    Filed: July 27, 2007
    Publication date: October 2, 2008
    Applicant: HANNSTAR DISPLAY CORP.
    Inventors: Wei-Chou Chen, Kei-Hsiung Yang, Kun-Wei Lin
  • Publication number: 20080205084
    Abstract: A polarized light source device comprises a light source, a reflector, a transparent substrate, an antireflection layer, and a plurality of metal grid wires. The reflector surrounds the light source for reflecting the light, and has an opening for emitting the light. The transparent substrate is disposed at the opening. The antireflection layer is disposed on the transparent substrate. The metal grid wires are disposed on the antireflection layer for transmitting the light with a predetermined polarization therethrough.
    Type: Application
    Filed: August 9, 2007
    Publication date: August 28, 2008
    Applicant: HANNSTAR DISPLAY CORP.
    Inventors: Wei Chou CHEN, Kei Hsiung Yang