Patents Assigned to Hannstar Display Corp.
  • Publication number: 20140009720
    Abstract: A display device includes a transparent display panel and an adjustable light valve. The transparent display panel and the adjustable light valve are disposed opposite to each other. The transparent display panel includes a plurality of pixels including active-matrix organic light-emitting diodes for generating an image. When the display device operates under a transparent display mode, the adjustable light valve is in a transparent status. When the display device operates under a high color saturation display mode, the adjustable light valve is in a non-transparent status. Thereby, the display device will not be limited to having only a display mode.
    Type: Application
    Filed: January 27, 2013
    Publication date: January 9, 2014
    Applicant: HannStar Display Corp.
    Inventor: Kun-Tsai Huang
  • Patent number: 8624120
    Abstract: A two-side cable-arrangement structure is disclosed. The two-side cable-arrangement structure includes a plate, a first cable-arrangement structure, and a second cable-arrangement structure. The first cable-arrangement structure and the second cable-arrangement structure are respectively disposed on two sides of the plate. A cable is fixed on the two sides of the plate by the first cable-arrangement structure and the second cable-arrangement structure simultaneously. Thereby, the cable is constrained at both the direction vertical toward the plate and the direction vertical away from the plate, and the fixed cable is not easy to move by pulling. It solves the difficulty of fixing a cable completely by a conventional single-side cable-arrangement structure in the prior art.
    Type: Grant
    Filed: November 24, 2010
    Date of Patent: January 7, 2014
    Assignee: HannStar Display Corp.
    Inventor: Yu-Chang Hong
  • Publication number: 20130335347
    Abstract: A touch display device is provided. The touch display device includes a cover lens which has a first flat outside surface and an opposite second concave inner surface. A touch sensing element is disposed under the second surface of the cover lens and a display element is disposed under the touch sensing element. A border adhesive is disposed between the display element and the touch sensing element to form a gap surrounded by the border adhesive. A height at the center of the gap is higher than a height at the periphery of the gap. Further, a bonding equipment for fabricating the touch display device is provided. The bonding equipment includes a first and a second tray component for carrying the cover lens and the touch sensing element, respectively.
    Type: Application
    Filed: January 10, 2013
    Publication date: December 19, 2013
    Applicant: Hannstar Display Corp.
    Inventors: Kun Lung WU, Ke-Chin CHANG, Chia-Feng TENG
  • Publication number: 20130335665
    Abstract: An integrated gate driver circuit includes a control circuit, a plurality of drive stages and a plurality of discharge transistors. The control circuit is configured to output a plurality of clock signals within a frame period and to output a discharge enabling signal within a blanking period of the frame period. Each of the drive stages receives the clock signals and includes an output terminal configured to output a gate driving signal. Each of the discharge transistors is coupled to the output terminal of one of the drive stages and discharges the output terminal according to the discharge enabling signal thereby eliminating the voltage fluctuation of the output terminal in the blanking period.
    Type: Application
    Filed: February 20, 2013
    Publication date: December 19, 2013
    Applicant: HannStar Display Corp.
    Inventors: Chun-Chin TSENG, Ya-Wen Lee, Kuo-Wen Pan
  • Patent number: 8542328
    Abstract: A pixel structure of a liquid crystal display panel includes a substrate, a first metallic layer, a light shielding element, a second metallic layer and a pixel electrode. The first metallic layer and the light shielding element are disposed above the substrate. The second metallic layer is disposed above the light shielding element, and includes first and second data lines. The first data line is disposed along the light shielding element, and is partially overlapped with the light shielding element. The second data line is parallel to the first data line. A first portion of the pixel electrode is overlapped with the first data line, and is not overlapped with the light shielding element. A second portion of the pixel electrode is overlapped with the light shielding element, and is not overlapped with the first data line.
    Type: Grant
    Filed: March 24, 2010
    Date of Patent: September 24, 2013
    Assignee: Hannstar Display Corp.
    Inventors: Tsu Chiang Chang, Chao Hui Wu
  • Patent number: 8525961
    Abstract: A polarizing plate is provided. The polarizing plate includes a polarizing layer having a first and a second opposite sides; a parallax barrier layer configured above one of the first and the second sides of the polarizing layer, and a top surface protecting layer configured above the parallax barrier layer.
    Type: Grant
    Filed: June 22, 2010
    Date of Patent: September 3, 2013
    Assignee: Hannstar Display Corp.
    Inventors: Mu-Kai Kang, Wei-Chou Chen, Heng-Cheng Tseng, Cheng-Yeh Tsai
  • Patent number: 8520031
    Abstract: A pixel driving method for a display device is provided. The display device includes at least a first and a second pixels coupled to a signal terminal. The first pixel is located farther from the signal terminal than the second pixel, and each pixel is driven during a time period, which includes a first operation period and a second operation period. The pixel driving method includes steps of generating a compensation voltage and an ideal voltage according to a gray scale value of the each pixel, charging/discharging the each pixel by the compensation voltage corresponding to the each pixel during the respective first operation period, and charging/discharging the each pixel by the ideal voltage corresponding to the each pixel during the respective second operation period. The first operation period for charging/discharging the first pixel is longer than that for charging/discharging the second pixel.
    Type: Grant
    Filed: February 21, 2008
    Date of Patent: August 27, 2013
    Assignee: Hannstar Display Corp.
    Inventors: Po-Sheng Shih, Hsuan-Lin Pan
  • Patent number: 8508945
    Abstract: A card installation device includes a casing and a pushing member. The casing has an accommodating recess for accommodating a card. A pushing end of the pushing member is movably disposed in the casing. When the card is accommodated in the accommodating recess, the pushing end is used for pushing the card into a card slot of an electronic device. Accordingly, the invention can assist a user in aligning the card with the card slot well during insertion so as to prevent the card and/or the card slot from being damaged.
    Type: Grant
    Filed: April 27, 2012
    Date of Patent: August 13, 2013
    Assignee: HannStar Display Corp.
    Inventor: Chang-An Chiang
  • Patent number: 8502839
    Abstract: A display device includes a display panel and a driving circuit. The display panel has a pixel including red, green, blue, and white sub-pixels. The driving circuit receives a display signal and provides at least a first luminance weighting and a second luminance weighting of the red, green, blue, and white sub-pixels respectively. The display device selects one of the first luminance weighting and the second luminance weighting to drive the pixel according to the different operating modes of the display device.
    Type: Grant
    Filed: July 2, 2008
    Date of Patent: August 6, 2013
    Assignee: HannStar Display Corp.
    Inventors: Sheng-Pin Tseng, Ching-Chao Chang, Chien-Yung Cheng
  • Patent number: 8501553
    Abstract: A TFT array substrate includes a substrate, at least one gate line and gate electrode, a gate insulating layer, and at least one channel component, source electrode, drain electrode and data line. The gate line and gate electrode are disposed on the substrate, wherein both of the gate line and gate electrode have first and second conductive layers, the first conductive layer is formed on the substrate, the first conductive layer contains molybdenum nitride , the second conductive layer is formed on the first conductive layer, and the second conductive layer contains copper. The gate insulating layer is disposed on the gate line, gate electrode and the substrate. The channel component is disposed on the gate insulating layer. The source electrode and drain electrode are disposed on the channel component, and data line is disposed on the gate insulating layer.
    Type: Grant
    Filed: June 20, 2012
    Date of Patent: August 6, 2013
    Assignee: Hannstar Display Corp.
    Inventors: Hsien Tang Hu, Chien Chih Hsiao, Chih Hung Tsai
  • Patent number: 8487890
    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: Grant
    Filed: February 12, 2010
    Date of Patent: July 16, 2013
    Assignee: Hannstar Display Corp
    Inventors: Yi Chung Juan, Chia Hua Yu, Sung Chun Lin, Hsu Ho Wu
  • Patent number: 8477278
    Abstract: A liquid crystal display panel includes a pixel array substrate, an opposite substrate, and a twisted nematic (TN) liquid crystal layer located between the two substrates. The pixel array substrate includes a first substrate, gate lines, data lines, thin film transistors (TFTs) coupled to the gate lines and the data lines, a first insulation layer, a transparent conductive layer, a second insulation layer, and pixel electrodes coupled to the TFTs through contact holes in the first and second insulation layers. The first insulation layer covers the gate lines, the data lines, and the TFTs. The transparent conductive layer, the second insulation layer, and the pixel electrodes are sequentially stacked on the first insulation layer and constitute a storage capacitor. A phase retardation value of the TN liquid crystal layer ranges from 250 to 480, and a dielectric anisotropy ?? of the TN liquid crystal layer ranges from 3 to 10.
    Type: Grant
    Filed: November 2, 2012
    Date of Patent: July 2, 2013
    Assignee: Hannstar Display Corp.
    Inventors: Chia-Hua Yu, Kun-Cheng Lee, I-Fang Wang, Feng-Wei Kuo
  • Patent number: 8451413
    Abstract: An array substrate for FFS type LCD panel includes a transparent substrate, gate lines, a gate insulating layer, data lines, pixel electrodes, a passivation layer and a common electrode. The gate lines are disposed on the transparent substrate. The gate insulating layer is disposed on the transparent substrate and covers the gate lines. The data lines are disposed on the gate insulating layer. The pixel electrodes are disposed on the gate insulating layer, wherein the pixel electrodes and the data lines are located on the same level. The passivation layer is disposed on the gate insulating layer and covers the pixel electrodes and the data lines. The common electrode is disposed on the passivation layer.
    Type: Grant
    Filed: January 29, 2010
    Date of Patent: May 28, 2013
    Assignee: Hannstar Display Corp.
    Inventors: Hsuan Chen Liu, Yun Bok Lee, Chia Hua Yu, Kun Tsai Huang, Kun Cheng Lee
  • Patent number: 8451203
    Abstract: A pixel arrangement method for a liquid crystal display includes the steps of: inputting data signals with different driving polarities to odd data lines and even data lines respectively; and changing connections between a gate of thin film transistor and gate lines and connections between a source of thin film transistor and data lines in every pixel area whereby the driving polarity is inverted every two pixel areas in a transverse direction and is inverted every pixel area in a longitudinal direction. The present invention further provides a liquid crystal display.
    Type: Grant
    Filed: April 8, 2010
    Date of Patent: May 28, 2013
    Assignee: Hannstar Display Corp.
    Inventors: Ling Chih Kao, Chia Hua Yu, Sung Chun Lin, Kun Chen Lee
  • Patent number: 8451403
    Abstract: A transflective display device includes a display panel and a light-gathering unit. The display panel includes a plurality of transmission regions and reflection regions, and has an upper surface and a lower surface. The light-gathering unit is directly disposed and positioned on the upper surface of the display panel, and includes a plurality of light-gathering elements, which are corresponding to the reflection regions respectively.
    Type: Grant
    Filed: December 23, 2009
    Date of Patent: May 28, 2013
    Assignee: Hannstar Display Corp.
    Inventors: Cheng Yeh Tsai, Mu Kai Kang, Heng Cheng Tseng
  • Patent number: 8440482
    Abstract: A method for manufacturing a transflective liquid crystal display panel includes providing an array substrate having a plurality of pixel regions, each of the pixel regions includes a device region, a transmission region and a reflection region defined therein; forming a first metal layer on the array substrate; patterning the first metal layer to simultaneously form a gate electrode in the device region and a plurality of metal bumps in the reflection region; forming a first insulating layer having a rough surface and covering the gate electrode and the metal bumps on the array substrate; forming a patterned semiconductor layer on the gate electrode; forming a reflective layer covering the first insulating layer and having a rough surface in the reflection region; and sequentially forming a patterned second insulating layer and a transparent pixel electrode on the array substrate.
    Type: Grant
    Filed: December 15, 2010
    Date of Patent: May 14, 2013
    Assignee: HannStar Display Corp.
    Inventors: Sweehan J. H. Yang, Po-Sheng Shih, Chian-Chih Hsiao, Hsien-Tang Hu, Ting-Chung Liu
  • Patent number: 8436959
    Abstract: A liquid crystal display and a fabrication method thereof are provided. The liquid crystal display includes a liquid crystal display panel having a plurality of pixels. A backlight module is disposed under the liquid crystal display panel. A lens is disposed between the liquid crystal display panel and the backlight module, having a plurality of optical structures formed on an upper surface and a lower surface thereof. The lens can disperse lights from the backlight module to form a plurality of chromatic light sources, wherein each chromatic light source is composed of colored lights with a continuous spectrum formed from a red light to a violet light and corresponds to each pixel.
    Type: Grant
    Filed: December 29, 2010
    Date of Patent: May 7, 2013
    Assignee: Hannstar Display Corp.
    Inventors: Wei-Tong Shih, Cheng-Chia Wu
  • Patent number: 8427622
    Abstract: A liquid crystal display panel includes a lower substrate, a printed circuit board, at least one connection unit and a plurality of readout lines. The connection unit is adapted to connect the printed circuit board to a periphery region of the lower substrate, and has a driver. The readout lines are extended from the lower substrate to the printed circuit board through the connection unit having the driver.
    Type: Grant
    Filed: August 24, 2011
    Date of Patent: April 23, 2013
    Assignee: Hannstar Display Corp.
    Inventors: Pao Yun Tang, Kei Hsiung Yang, Po Yang Chen
  • Publication number: 20130076254
    Abstract: A light emitting diode (LED) driving circuit preventing light leakage issue. The LED driving circuit comprises an LED driver, a driving circuit module and a power supply. When an input voltage is much higher, a high frequency pulse width modulation signal is set to a low level to avoid a light leakage of the LED by turning off a metal oxide semiconductor field effect transistor (MOSFET), such that the input voltage is not limited by the light leakage of the LED. As a result, the input voltage can be increased sufficiently for further reducing a switching loss effectively.
    Type: Application
    Filed: January 3, 2012
    Publication date: March 28, 2013
    Applicant: Hannstar Display Corp.
    Inventors: Yu TSAI, Che-Yu CHUANG
  • Patent number: 8398286
    Abstract: A backlight module for a liquid crystal display according to the present invention is provided. The backlight module includes a light guide plate, a light source, a first reflection sheet and a second reflection sheet. The light guide plate has an upper surface, a lower surface, and opposing first and second side surfaces. The light source is disposed on the first side surface of the light guide plate and comprises a plurality of point light sources. The first reflection sheet is disposed on the light source and the upper surface of the light guide plate to reflect light beams emitting from the light source to the light guide plate. The first reflection sheet includes a plurality of first portions, a plurality of second portions and a plurality of protrusion portions, wherein the first portions are positioned corresponding to the light source and arranged alternately with the second portions. The protrusion portions extend from the second portions toward the second side surface of the light guide plate.
    Type: Grant
    Filed: July 2, 2010
    Date of Patent: March 19, 2013
    Assignee: Hannstar Display Corp.
    Inventor: Ke Chin Chang