Patents Assigned to Hannstar Display Corp.
  • Patent number: 7030943
    Abstract: A liquid crystal display includes a liquid crystal panel, a housing, and an optical film. The liquid crystal panel is used for displaying images. The housing supports the liquid crystal panel and has a plurality of lamps and sliding grooves. The lamps are used for transmitting light to the liquid crystal panel. The optical film is disposed in the sliding grooves.
    Type: Grant
    Filed: November 12, 2003
    Date of Patent: April 18, 2006
    Assignee: Hannstar Display Corp.
    Inventor: Hung Chen Kao
  • Patent number: 7019786
    Abstract: A TV wall. The TV wall includes a frame, a plurality of liquid crystal displays, and a plurality of rotating mounting assemblies. The frame is provided with a plurality of pairs of first rods and second rods facing each other, and each of the first rods is provided with a through hole. The liquid crystal displays are disposed on the frame. Each of the rotating mounting assemblies, connecting the liquid crystal displays with the frame, is provided with a base, a rotating member, and a stopper. The base includes a pin corresponding to the through hole, a first bending portion corresponding to the first rod, and a second bending portion corresponding to the second rod. The pin is inserted into the through hole. The second rod holds the second bending portion. The stopper abuts the second rod. Thus, the base is disposed on the frame.
    Type: Grant
    Filed: September 10, 2002
    Date of Patent: March 28, 2006
    Assignee: Hannstar Display Corp.
    Inventor: Hung-Lung Lee
  • Patent number: 7016001
    Abstract: An MVA-LCD device has a first glass substrate and a second glass substrate disposed in parallel to each other. A plurality of transverse-extending scanning electrodes and lengthwise-extending signal electrodes are patterned on the first glass substrate to define a plurality of pixel areas. A color resin layer is formed on the signal electrodes, and an organic insulator is formed on the color resin layer. Also, at least a first protrusion is formed in the organic insulator within each pixel area. A plurality of pixel electrodes is formed on the organic insulator and the first protrusions to cover each pixel area of the first glass substrate.
    Type: Grant
    Filed: March 14, 2002
    Date of Patent: March 21, 2006
    Assignee: Hannstar Display Corp.
    Inventors: Sakae Tanaka, Seok Lyul Lee
  • Patent number: 7012667
    Abstract: A liquid crystal display device comprises a liquid crystal panel, a flexible printed circuit (FPC) film connecting to the liquid crystal panel, and a plurality of driver IC chips formed on the liquid crystal panel directly. The present invention is characterized in that a power circuit, a gamma compensating circuit and a ground circuit are formed on the FPC film and are electrically connected to each of the driver IC chips respectively and that the driver IC chips are formed on the glass substrate of the liquid crystal panel directly to save the space of the PCB and lower the cost.
    Type: Grant
    Filed: January 16, 2003
    Date of Patent: March 14, 2006
    Assignee: Hannstar Display Corp.
    Inventor: Feng Ting Pai
  • Patent number: 6999054
    Abstract: A driving method for an active matrix display having a plurality of transistors, common electrodes and capacitances arranged into a matrix, wherein each of the capacitances is formed between a drain of one corresponding transistor and common electrode, is provided. The method comprises the steps of turning on the transistors in a line of the matrix, when a source of one of the turned on transistors receives a data signal of a first polarity, providing a first voltage to the corresponding common electrode, and when the source of one of the turned on transistors receives the data signal of a second polarity, providing a second voltage to the corresponding common electrode, wherein the sources of adjacent turned on transistors receive the data signals of the first and second polarity, and the first and second voltage are ground voltage references for the data signals of the first and second polarity, respectively.
    Type: Grant
    Filed: October 1, 2001
    Date of Patent: February 14, 2006
    Assignee: Hannstar Display Corp.
    Inventor: Feng-Ting Pai
  • Patent number: 6995474
    Abstract: An electrical conducting structure including an integrated circuit, a substrate, and a plurality of bumps, wherein at least one bump comprises a first conductive part connected to the integrated circuit at one end; a second conductive part connected to the integrated circuit at one end; a conductive connection part connecting the first conductive part and the second conductive part; a first insulation part surrounding the first conductive part and the second conductive part; and a second insulation part located between the first conductive part and the second conductive part.
    Type: Grant
    Filed: September 17, 2004
    Date of Patent: February 7, 2006
    Assignee: HannStar Display Corp.
    Inventors: Shu-Lin Ho, Pao-Yun Tang
  • Patent number: 6987547
    Abstract: A liquid crystal display (LCD) device, with an organic electroluminescent display (OLED) element serving as a light source, a common electrode, and a polarizer which is a wire grid polarizer or a thin film polarizer are formed on a lower substrate. A pixel electrode is formed on an upper substrate. According to the invention, a thinner integrated LCD device with improved light utilization efficiency is obtained.
    Type: Grant
    Filed: September 9, 2003
    Date of Patent: January 17, 2006
    Assignee: Hannstar Display Corp.
    Inventors: Kie-Hsiung Yang, Wei-Chou Chen
  • Patent number: 6979114
    Abstract: A liquid crystal display comprises a liquid crystal panel for displaying images, a first frame, a second frame, and a first optical component. The first frame receives the liquid crystal panel. The second frame has a plurality of lamps for transmitting light to the liquid crystal panel. The first optical component is disposed on the first frame and between the second frame and the liquid crystal panel. The second frame is detachable from the first frame.
    Type: Grant
    Filed: December 24, 2003
    Date of Patent: December 27, 2005
    Assignee: Hannstar Display Corp.
    Inventor: Hung Chen Kao
  • Publication number: 20050259096
    Abstract: A structure and a method for measuring the bonding resistance are provided. The structure for measuring a bonding resistance between a first object and a second object is provided, wherein the first object has a plurality of first pins and a reference pin, and the second object has a plurality of second pins corresponding to the plurality of first pins and the reference pin. The structure further includes a first circuit formed by electrically connecting the reference pin to the first pin adjacent to the reference pin in a first direction, and a second circuit formed by electrically connecting a second pin corresponding to the reference pin to the adjacent second pin in a second direction. By connecting the first and the second circuits in series, the value of the bonding resistance is easily measured.
    Type: Application
    Filed: August 17, 2004
    Publication date: November 24, 2005
    Applicant: Hannstar Display Corp.
    Inventors: Shu-Lin Ho, Shih-Chieh Wang
  • Patent number: 6965424
    Abstract: A method of preventing seal damage in LCD panel manufacturing. A photo spacer pattern made of photoresist is used instead of extra seal pattern, such that tact time of sealing process is reduced, air blockage is enhanced, the number of TFT-array areas able to be formed on a glass substrate is increased, and chipping or unevenness of the panel resulting during panel cutting owing to extra seal patterns are all avoided.
    Type: Grant
    Filed: December 30, 2002
    Date of Patent: November 15, 2005
    Assignee: Hannstar Display Corp.
    Inventors: Hsiang Lung Liu, Hsu-Ho Wu
  • Patent number: 6961081
    Abstract: A system for inspecting signals of the circuits on a panel includes a moveable stage with a transparent work area for holding the panel to be tested; a probe for contacting the panel; a tester for receiving a signal via the probe; an image sensing device disposed in an opposite side to the probe with respect to the stage; and image display device coupled to the image sensing device. The image display device includes a screen having a cross mark. When the system is operating, the probe is aligned with the image sensing device such that the captured image of the probe is displayed on the center of the cross.
    Type: Grant
    Filed: June 14, 2002
    Date of Patent: November 1, 2005
    Assignee: Hannstar Display Corp.
    Inventor: Cheng Ming Chen
  • Patent number: 6959821
    Abstract: A display detecting apparatus for detecting display modules having a display surface, includes a base, at least one flat panel generally horizontally fixed on the base; and a plurality of frames fixed on the flat panel for carrying the display modules, wherein at least two adjacent frames form a first angle less than 180 degrees.
    Type: Grant
    Filed: December 13, 2001
    Date of Patent: November 1, 2005
    Assignee: Hannstar Display Corp.
    Inventor: Chien Chang Huang
  • Patent number: 6950158
    Abstract: A transflective LCD device with a single cell gap. First and second pixel electrodes are formed on the lower substrate. First and second common electrodes are formed on an inner surface of the upper substrate. The first pixel electrodes and the first common electrodes are located in the reflective region. The second pixel electrodes and the second common electrodes are located in the transmissive region. A first orientation control window having a slit width “Src” is formed between the first common electrodes in an area corresponding to each first pixel electrode. A second orientation control window having a slit width “Stc” is formed between the second common electrodes, satisfying Src<Stc. The second orientation control window is in an area corresponding to each second pixel electrode. Accordingly, maximum light efficiency can be achieved in both reflective and transmissive modes.
    Type: Grant
    Filed: February 26, 2004
    Date of Patent: September 27, 2005
    Assignee: Hannstar Display Corp.
    Inventor: Ching Chao Chang
  • Patent number: 6937478
    Abstract: A low profile circuit device for the LCD module comprises a printed circuit board and an electronic device. The printed circuit board has a through hole and a plurality of pads surrounding the through hole. The electronic device is disposed within the through hole and has a plurality of leads electrically connected to and mounted on the plurality of pads of the printed circuit board.
    Type: Grant
    Filed: May 8, 2002
    Date of Patent: August 30, 2005
    Assignee: Hannstar Display Corp.
    Inventors: Chi Tien Lee, Jiunn Yau Huang
  • Patent number: 6919941
    Abstract: A backlight module mainly includes a housing and a lamp. The lamp is disposed in the housing and includes two conductive terminals extending from two ends of the lamp and each connected with one of two wires. The present invention is characterized in that the backlight module has an engaging portion provided on the housing for fastening the two wires such that any external stress to which the wires are subjected can be transmitted to the engaging portion rather than concentrates in the joints between the wires and the conductive terminals of the lamp. The present invention further provides a liquid crystal display device utilizing the backlight module.
    Type: Grant
    Filed: August 29, 2003
    Date of Patent: July 19, 2005
    Assignee: Hannstar Display Corp.
    Inventors: Yung Li Huang, Ching Kun Lai
  • Patent number: 6917406
    Abstract: An electrode array structure comprises a plurality of teeth of a comb-shaped common electrode extending in a first lengthwise direction, and a plurality of teeth of a comb-shaped pixel electrode extending in a second lengthwise direction, wherein each tooth of the pixel electrode parallel is disposed between adjacent teeth of the common electrode. When the tooth of the common electrode has a rectangular profile, the tooth of the pixel electrode has a continuous ?-shaped profile which may be formed by lengthwise linking of trapezoids or inverted trapezoids. When the tooth of the pixel electrode has a rectangular profile, the tooth of the common electrode has a continuous ?-shaped profile which may be formed by lengthwise linking of trapezoids or inverted trapezoids.
    Type: Grant
    Filed: June 14, 2001
    Date of Patent: July 12, 2005
    Assignee: Hannstar Display Corp.
    Inventor: Kie-Hsiung Yang
  • Patent number: 6912699
    Abstract: A testing design for flip chip connection process. In one embodiment the testing design has a substrate, a plurality of connections formed on said substrate, at least one integrated device and a plurality of bumps formed on said integrated device, wherein at least one of said bumps is electrically connected to said plurality of connectors to form an electrical channel.
    Type: Grant
    Filed: October 18, 2002
    Date of Patent: June 28, 2005
    Assignee: HannStar Display Corp.
    Inventors: Pao Yun Tang, Shao Wu Hsu, Shu Ping Yang
  • Publication number: 20050128373
    Abstract: A process for repairing defects applied in producing a liquid crystal display, wherein the liquid crystal display includes a pixel array formed by a plurality of scanning lines crossing with a plurality of data lines. The process includes steps of providing an essential repair line located on one side of the pixel array, welding a first intersection point of a defecting data line and the essential repair line and a second intersection point of a normal data line adjacent to the defecting data line and the essential repair line by a first laser to achieve electrical connection, and cutting a first breaking point and a second breaking point of the essential repair line by a second laser to achieve a broken circuit, wherein the first and second intersection points are located two sides of a line segment constructed by the first and second intersection points respectively.
    Type: Application
    Filed: January 20, 2005
    Publication date: June 16, 2005
    Applicant: Hannstar Display Corp.
    Inventors: Hong-Jye Hong, George Hsu, Chih-Wei Wang
  • Patent number: 6905062
    Abstract: An automated soldering system includes a robotic soldering machine and a plurality of feed lines for delivering workpieces to be soldered by the soldering machine. Each of the feed lines transports workpieces such as LCD modules from an input end to a soldering area, and from the soldering area to an outlet end. The soldering areas are arranged within the range of motion of a soldering arm of the soldering machine are preferably arranged in a bilateral triangle having the pivot axis of the soldering are at its apex. The soldering arm is programmed to work reciprocally among the soldering areas, thus increasing the yield of the robotic soldering machine so that the soldering machine is more cost effective. The soldering machine may be programmed to perform different soldering operations at different soldering areas.
    Type: Grant
    Filed: June 12, 2003
    Date of Patent: June 14, 2005
    Assignee: Hannstar Display Corp.
    Inventor: Johnny Wang
  • Publication number: 20050122827
    Abstract: This invention provides an active matrix display and a relevant driving method. The active matrix display includes a gate line driving circuit for generating a multiplexer controlling signal and plural gate line driving signals, a multiplexer, and a source line driving circuit having plural source line outputs in a horizontal direction. The multiplexer has a plurality of gate line outputs in a vertical direction and is electrically connected between the gate line driving circuit and the transistors of the display, wherein the gate line outputs are connected to the gate electrodes of the transistors, and the multiplexer is controlled by the multiplexer controlling signal and drives the gate line outputs in response to the gate line driving signals.
    Type: Application
    Filed: August 20, 2004
    Publication date: June 9, 2005
    Applicant: Hannstar Display Corp.
    Inventor: Chun-Fu Wang