Patents by Inventor Chia-Hua Yu

Chia-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: 7800704
    Abstract: A liquid crystal display is disclosed. The liquid crystal display comprises a gate line, a data line, a first common line and a continuous second common line. The gate line is disposed on a substrate, and the data line intersects the gate line. The first common line is parallel with the gate line and the second common line intersects through the gate line. By this invention, the first common lines and second common lines of pixels can form a reticular structure for reducing RC delay effect of the common line.
    Type: Grant
    Filed: November 13, 2006
    Date of Patent: September 21, 2010
    Assignee: Hannstar Display Corp.
    Inventors: Sung-Chun Lin, Chia-Hua Yu, Chia-Te Liao, Hsuan-Chen Liu, Chen-Yin Su
  • Publication number: 20100225867
    Abstract: A TFT array substrate includes a plurality of gate lines, common lines, data lines and pixel electrodes. Each common line includes a common electrode which is perpendicular to the gate line and has a first width. The data line has a second width and is perpendicular to the gate line, wherein two adjacent gate lines and two adjacent data lines define a pixel. The pixel electrodes are located in the pixels respectively, wherein the common electrode is overlapped with the data line and a part of the pixel electrode, and the common electrode completely shelters a gap between the pixel electrode and the data line.
    Type: Application
    Filed: November 20, 2009
    Publication date: September 9, 2010
    Applicant: HANNSTAR DISPLAY CORP.
    Inventors: Ling Chih Kao, Hui Fang Cheng, Sung Chun Lin, Kun Cheng Lee, Chia Hua Yu
  • Publication number: 20100225859
    Abstract: A TFT array substrate includes gate lines, data lines, and first and second common lines. The gate lines are disposed on a transparent substrate. The first gate lines to the N+1-th gate lines are arranged in order, and N is a positive number. The data lines cross the gate lines. There is no pixel region defined by the N-th and N+1-th gate lines and adjacent two of the data lines, when N is an even number. There are two pixel regions being left and right pixel region defined by the N-th and N+1-th gate lines and adjacent two of the data lines, when N is an odd number. The first common lines are parallel to the gate lines. The second common lines are parallel to the data lines and electrically connected to the first common lines, wherein each second common line is disposed between the left and right pixel regions.
    Type: Application
    Filed: April 30, 2010
    Publication date: September 9, 2010
    Applicant: HANNSTAR DISPLAY CORP.
    Inventors: Jui Hsin TSAI, Chia Hua YU, Kun Chen LEE
  • Publication number: 20100225840
    Abstract: A grounding structure for a display device is provided. The grounding structure includes a substrate, a first connecting pad, a second connecting pad, a connecting structure and a grounding line. The first and second connecting pads are disposed on the substrate. The connecting structure electrically connects the first and second connecting pads. The first grounding line is disposed on the substrate, and has a length larger than two thirds of the projected length of the connecting structure on the surface of the substrate.
    Type: Application
    Filed: September 16, 2009
    Publication date: September 9, 2010
    Applicant: HANNSTAR DISPLAY CORPORATION
    Inventors: Hsuan-Chen LIU, Sung-Chun LIN, Kun Cheng LEE, Chia Hua YU
  • Publication number: 20100207902
    Abstract: An in-cell touch-sensitive panel includes TFT and CF substrates. The TFT substrate includes a net-shaped readout circuit and conductive pads arranged in array manner. The net-shaped readout circuit includes widthwise and lengthwise readout lines. The widthwise readout lines are electrically connected to the lengthwise readout lines. The conductive pads are electrically connected to the net-shaped readout circuit. Spacers are adapted to keep a first gap between the TFT and CF substrates. Protrudent portions are arranged to be corresponding to the conductive pads, and there is a second gap between the protrudent portion and the conductive pad. A transparent electrode covers the spacers and the protrudent portion.
    Type: Application
    Filed: February 12, 2010
    Publication date: August 19, 2010
    Applicant: HANNSTAR DISPLAY CORP.
    Inventors: Yi Chung JUAN, Chia Hua Yu, Sung Chun Lin, Hsu Ho Wu
  • Publication number: 20100073065
    Abstract: An integrated gate driver circuit receives a plurality of clocks and includes a plurality of driving units cascaded in series. Each driving unit is for driving a load and includes an input terminal, an output terminal, a first switch and a second switch. The first switch has a first terminal coupled to the input terminal, a second terminal coupled to a first node, and a control terminal receiving a first clock, and the first switch is turned on when the first clock is at high level. The second switch has a first terminal receiving a second clock, a second terminal coupled to the output terminal, and a control terminal coupled to the first node, wherein the second clock charges and discharges the load through the second switch when the first node is at high level; wherein the output terminal of each driving unit is coupled to the input terminal of the immediately succeeding driving unit.
    Type: Application
    Filed: September 16, 2009
    Publication date: March 25, 2010
    Applicant: HANNSTAR DISPLAY CORP.
    Inventors: Yan Jou CHEN, Yung Hsin LU, Chia Hua YU, Sung Chun LIN
  • Patent number: 7623191
    Abstract: Fringe field switching mode liquid crystal display (FFS LCD) devices are disclosed. A first substrate is disposed opposing a second substrate with a gap therebetween. A liquid crystal layer is interposed between the first and the second substrate. A gate line and data lines are formed on the first substrate in a matrix configuration and defining pixel areas. A counter electrode is disposed on each pixel area of the first substrate. A pixel electrode is disposed above the counter electrode with an insulating layer therebetween. The pixel electrode includes a plurality of parallel electrodes. Each electrode includes a first segment, a second segment, and a third segment, wherein the first segment has an included angle ? from the horizontal direction, the second segment has an included angle ? from the horizontal direction, and the first segment has an included angle ? from the horizontal direction.
    Type: Grant
    Filed: September 19, 2006
    Date of Patent: November 24, 2009
    Assignee: Hannstar Display Corp.
    Inventors: Chia-Te Liao, Shih-Min Chao, Tean-Sen Jen, Yun-Bok Lee, Chia-Hua Yu
  • Publication number: 20090273750
    Abstract: Fringe field switching mode liquid crystal display (FFS LCD) devices are disclosed. A first substrate is disposed opposing a second substrate with a gap therebetween. A liquid crystal layer is interposed between the first and the second substrate. A gate line and data lines are formed on the first substrate in a matrix configuration and defining pixel areas. A counter electrode is disposed on each pixel area of the first substrate. A pixel electrode is disposed above the counter electrode with an insulating layer therebetween. The pixel electrode includes a plurality of parallel electrodes. Each electrode includes a first segment, a second segment, and a third segment, wherein the first segment has an included angle ? from the horizontal direction, the second segment has an included angle ? from the horizontal direction, and the first segment has an included angle ? from the horizontal direction.
    Type: Application
    Filed: July 14, 2009
    Publication date: November 5, 2009
    Applicant: HANNSTAR DISPLAY CORP.
    Inventors: Chia-Te Liao, Shih-Min Chao, Tean-Sen Jen, Yun-Bok Lee, Chia-Hua Yu
  • Publication number: 20090115959
    Abstract: A data line repair structure for a liquid crystal display panel is disclosed. The data line repair structure includes a first repair line parallel to the scan line and crossing a first end of the data line; a fourth repair line formed in an oblique line area of the liquid crystal panel, coupled to the first repair line; a second repair line parallel to the data line, coupled to the gate driving chip and the fourth repair line; a third repair line parallel to the scan line, coupled to the second repair line and separated from a second end of the data line; and a floating line connected between the third repair line and the second end of the data line when the data line has a broken point.
    Type: Application
    Filed: January 8, 2009
    Publication date: May 7, 2009
    Applicant: HANNSTAR DISPLAY CORP.
    Inventors: Kun-Chen Lee, Chia-Hua Yu, Sung-Chun Lin, Chang-Ching Yeh, Hsuan-Chen Liu
  • Publication number: 20090102998
    Abstract: A display apparatus comprises a substrate, a first lead, a second lead and a third lead. The first lead and second lead are provided on the substrate and intersect at a first overlapping area. The third lead surrounds the first overlapping area where the first lead and second lead cross each other. The third lead intersects the first lead respectively at a second overlapping area and a third overlapping area.
    Type: Application
    Filed: October 16, 2008
    Publication date: April 23, 2009
    Applicant: HANNSTAR DISPLAY CORPORATION
    Inventors: YI TSE LIN, HSU HO WU, CHIA HUA YU, HUI FANG CHENG
  • Publication number: 20090102539
    Abstract: A pixel, according to the invention, comprises a pixel electrode, a data line, and a switch element. The switch element comprises a gate electrode, a first electrode, a second electrode, and a semiconductor layer. The first electrode is electrically connected to the pixel electrode and comprises a first portion and a second portion. The second portion has a curved structure and comprises a first terminal connected to the first portion and a second terminal. The first terminal of the second portion is substantially aligned with the second terminal thereof. The second electrode is electrically connected to the data line. The second electrode forms or the second electrode and the data line together form a concave area where the first electrode is disposed in. The semiconductor layer is disposed between the first electrode, the second electrode, and the gate electrode.
    Type: Application
    Filed: December 12, 2007
    Publication date: April 23, 2009
    Applicant: HANNSTAR DISPLAY CORP.
    Inventors: Chang-Ching Yeh, Yun-Bok Lee, Chia-Hua Yu
  • Publication number: 20090027367
    Abstract: A circuit of a liquid crystal display device for generating common voltages comprises an initial voltage source, an inverter, and a panel common voltage input port. The initial voltage source generates an initial voltage. The voltage signal from the panel common voltage input port passes through the inverter to become a compensation voltage. The initial voltage is compensated by the compensation voltage to result in a compensated common voltage. The compensated common voltage supplies the panel of the liquid crystal display device.
    Type: Application
    Filed: July 16, 2008
    Publication date: January 29, 2009
    Applicant: HANNSTAR DISPLAY CORPORATION
    Inventors: HSUAN CHEN LIU, HSU HO WU, CHIA HUA YU, CHUN CHIN TSENG, KUN CHENG LEE, YI TSE LIN
  • Publication number: 20080174583
    Abstract: A compensating feed-through voltage display device comprises a first gamma circuit, a second gamma circuit, a first driving circuit and a second driving circuit. The first gamma circuit generates first group gamma voltages. The second gamma circuit generates second group gamma voltages differing from the first group gamma voltages by a preset first voltage. The first driving circuit transmits a plurality of first data signals to a display array according to the first group gamma voltages and a first control signal. The second driving circuit transmits a plurality of second data signals to the display array according to the second group gamma voltages and a second control signal.
    Type: Application
    Filed: January 22, 2007
    Publication date: July 24, 2008
    Applicant: HANNSTAR DISPLAY CORP.
    Inventors: Kun-Chen Lee, Chia-Hua Yu, Sung-Chun Lin, Min-Hsiang Hong, Hui-Fang Cheng
  • Patent number: 7374845
    Abstract: A method of forming a color filter layer having a light-scattering effect. First, substrate is provided, and a color filter layer is coated on the substrate. Then, an exposure-and-development process is performed to pattern the color filter layer. Subsequently, the color filter layer is post-baked to render the color filter layer a rough surface to provide the light-scattering effect, wherein the color filter layer has a surface roughness index Rz in the range of 0.5 to 2.0 ?m.
    Type: Grant
    Filed: August 29, 2006
    Date of Patent: May 20, 2008
    Assignee: HannStar Display Corp.
    Inventors: Szu-Yu Fang, Chia-Hua Yu, Tean-Sen Jen
  • Publication number: 20080111962
    Abstract: A liquid crystal display is disclosed. The liquid crystal display comprises a gate line, a data line, a first common line and a continuous second common line. The gate line is disposed on a substrate, and the data line intersects the gate line. The first common line is parallel with the gate line and the second common line intersects through the gate line. By this invention, the first common lines and second common lines of pixels can form a reticular structure for reducing RC delay effect of the common line.
    Type: Application
    Filed: November 13, 2006
    Publication date: May 15, 2008
    Inventors: Sung-Chun Lin, Chia-Hua Yu, Chia-Te Liao, Hsuan-Chen Liu, Chen-Yin Su
  • Publication number: 20080068549
    Abstract: Fringe field switching mode liquid crystal display (FFS LCD) devices are disclosed. A first substrate is disposed opposing a second substrate with a gap therebetween. A liquid crystal layer is interposed between the first and the second substrate. A gate line and data lines are formed on the first substrate in a matrix configuration and defining pixel areas. A counter electrode is disposed on each pixel area of the first substrate. A pixel electrode is disposed above the counter electrode with an insulating layer therebetween. The pixel electrode includes a plurality of parallel electrodes. Each electrode includes a first segment, a second segment, and a third segment, wherein the first segment has an included angle ? from the horizontal direction, the second segment has an included angle ? from the horizontal direction, and the first segment has an included angle ? from the horizontal direction.
    Type: Application
    Filed: September 19, 2006
    Publication date: March 20, 2008
    Applicant: HANNSTAR DISPLAY CORP.
    Inventors: Chia-Te Liao, Shih-Min Chao, Tean-Sen Jen, Yun-Bok Lee, Chia-Hua Yu
  • Publication number: 20080057416
    Abstract: A method of forming a color filter layer having a light-scattering effect. First, substrate is provided, and a color filter layer is coated on the substrate. Then, an exposure-and-development process is performed to pattern the color filter layer. Subsequently, the color filter layer is post-baked to render the color filter layer a rough surface to provide the light-scattering effect, wherein the color filter layer has a surface roughness index Rz in the range of 0.5 to 2.0 ?m.
    Type: Application
    Filed: August 29, 2006
    Publication date: March 6, 2008
    Inventors: Szu-Yu Fang, Chia-Hua Yu, Tean-Sen Jen