Patents Assigned to Hannstar Display Corp.
  • DRIVING METHOD FOR DISPLAY
    Publication number: 20120098825
    Abstract: There is provided a driving method for a display, which includes a display unit and a phase modulation unit. The display unit includes a plurality of pixel rows and generates image signals having a polarization direction. The phase modulation unit includes two oppositely disposed electrodes and an LC layer sandwiched between the two electrodes. The driving method changes a potential difference provided on the two electrodes of the phase modulation unit to control the twist of the LC layer thereby changing the polarization direction of the image signals generated by the display unit and passing through the phase modulation unit.
    Type: Application
    Filed: September 16, 2011
    Publication date: April 26, 2012
    Applicant: HANNSTAR DISPLAY CORP.
    Inventors: Heng Cheng TSENG, Ra Bin LI, Mu Kai KANG
  • Flip chip device and manufacturing method thereof
    Patent number: 8164187
    Abstract: A flip chip device made using LCD-COG (liquid crystal display-chip on glass) technique. The flip chip device comprises a substrate, at least one chip having active area with a plurality of compliant bumps thereon. The compliant bumps are centrally disposed in the center of the chip for electrically connecting the chip and the substrate. An adhesive is daubed on a joint area of the substrate and the chips for jointing the substrate and the chips. By limiting the position of the compliant bumps so that they are centrally disposed on the chips, the thermal warpage of the substrate is reduced.
    Type: Grant
    Filed: April 24, 2009
    Date of Patent: April 24, 2012
    Assignees: Taiwan TFT LCD Association, Chunghwa Picture Tubes, Ltd., Au Optronics Corp., Hannstar Display Corp., Chi Mei Optoelectronics Corp., Industrial Technology Research Institute, Toppoly Optoelectronics Corp., Quanta Display Inc.
    Inventors: Wen-Chih Chen, Sheng-Shu Yang
  • Pixel structure of a liquid crystal display
    Patent number: 8125594
    Abstract: A pixel structure of a liquid crystal display includes a substrate, a light shielding element, a first data line, a second data line and a pixel electrode. The light shielding element is formed on the substrate. The first and second data lines are formed along the light shielding element, and the second data line overlaps with portions of the light shielding element. The pixel electrode overlaps with portions of the first data line and the light shielding element without overlapping with the second data line.
    Type: Grant
    Filed: December 30, 2008
    Date of Patent: February 28, 2012
    Assignee: Hannstar Display Corp.
    Inventors: Tsu Chiang Chang, Po Sheng Shih, Po Yang Chen, Chao Hui Wu
  • Photo elements and image displays
    Patent number: 8115204
    Abstract: An exemplary embodiment of a photo element comprises a first line, a second line, a switch transistor, and a photo transistor. The switch transistor has a first electrode, a second electrode, and a first gate. One of the first electrode and the second electrode is electrically coupled to the first line, and the first gate is electrically coupled to the second line. The photo transistor is electrically coupled to the switch transistor and arranged to detect light. The photo transistor has a third electrode, a fourth electrode, and a second gate. At least one of the switch transistor and the photo transistor is an asymmetric transistor.
    Type: Grant
    Filed: August 19, 2008
    Date of Patent: February 14, 2012
    Assignee: Hannstar Display Corp.
    Inventors: Po-Yang Chen, Po-Sheng Shih, Tsu-Chiang Chang
  • REPAIR STRUCTURE AND METHOD FOR LIQUID CRYSTAL DISPLAY
    Publication number: 20120021663
    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: September 28, 2011
    Publication date: January 26, 2012
    Applicant: Hannstar Display Corp.
    Inventors: Kun-Chen Lee, Chia-Hua Yu, Sung-Chun Lin, Chang-Ching Yeh, Hsuan-Chen Liu
  • THREE-DIMENSIONAL DISPLAY INSTALLATION
    Publication number: 20110317083
    Abstract: A three-dimensional (3D) display installation is disclosed. The installation comprises a display, a phase-modulation device and at least a pair of polarized glasses. The phase-modulation device is set in one side of the display panel. The driving frequency of the display panel and the phase-modulation are above 120 Hz and synchronous with each other. The modulated polarized light contains left eye and right eye signals in sequence, which can be filtered by polarized glasses alternatively, and then the 3D visual effect is achieved. The 3D installation is suitable for multiple viewers at the same time, and the resolution of the screen is also unchanged under the 3D display mode.
    Type: Application
    Filed: April 7, 2011
    Publication date: December 29, 2011
    Applicant: HANNSTAR DISPLAY CORP.
    Inventors: RA-BIN LI, HENG-CHENG TSENG
  • TOUCH PANEL AND PIXEL ARAY THEREOF
    Publication number: 20110310036
    Abstract: A pixel array includes a plurality of pixels, data lines, readout lines and gate lines, wherein a data line and a readout line are alternatively disposed between every two adjacent pixels; two pixels adjacent to each data line are coupled to the same data line but coupled to different gate lines; and at least a part of the readout lines are coupled to one of the two pixels adjacent thereto. The present invention further provides a touch panel including the above pixel array.
    Type: Application
    Filed: April 29, 2011
    Publication date: December 22, 2011
    Applicant: HANNSTAR DISPLAY CORP.
    Inventors: Yi Chung JUAN, Sung Chun LIN, Chia Hua YU
  • LIQUID CRYSTAL DISPLAY PANEL HAVING A TOUCH FUNCTION
    Publication number: 20110304793
    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: Application
    Filed: August 24, 2011
    Publication date: December 15, 2011
    Applicant: HANNSTAR DISPLAY CORP.
    Inventors: Pao Yun TANG, Kei Hsiung YANG, Po Yang CHEN
  • METHODS FOR ENHANCING THE STABILITY AND CONTRAST RATIO OF THE DISPLAY DEVICE
    Publication number: 20110298985
    Abstract: A method of enhancing a contrast ratio of a picture of a display device, comprising steps of providing the display device having a light source; continuously receiving plural display signals; and turning off the light source when the display device has a buffer time during which each of the continuously received plural display signals has a picture brightness equal to zero.
    Type: Application
    Filed: December 8, 2010
    Publication date: December 8, 2011
    Applicant: HANNSTAR DISPLAY CORP.
    Inventors: Chao-Shin Wang, Chien-Hung Liu, Bomin Weng
  • Gate line driving circuit of LCD panel
    Patent number: 8072411
    Abstract: A gate line driving circuit comprises a driving chip comprising first and second output ports, a LCD panel comprising first, second and third gate lines, a first switch and a second switch. Two terminals of the first gate line are respectively connected to the first output port and the control terminal of the first switch. Two terminals of the third gate line are respectively connected to the second output port and the control terminal of the second switch. The input terminal of the first switch electrically connects an operating voltage and the output terminal of the first switch electrically connects to the input terminal of the second switch. The output terminal of the second switch electrically connects a ground point, and one terminal of the second gate line is connected to between the output terminal of the first switch and the input terminal of the second switch.
    Type: Grant
    Filed: July 13, 2009
    Date of Patent: December 6, 2011
    Assignee: Hannstar Display Corp.
    Inventors: Yan-Jou Chen, Hung-Jen Wang
  • ELECTRONIC DEVICE AND CHARGING METHOD THEREOF
    Publication number: 20110285343
    Abstract: An electronic device for charging a rechargeable device is provided. The electronic device includes a power-supply-cutoff system and a detecting circuit, which is electrically connected with the power-supply-cutoff system. The detecting circuit controls the power-supply-cutoff system to supply the electrical power to the rechargeable device when the detecting circuit detects the incomplete charging of the rechargeable device.
    Type: Application
    Filed: November 30, 2010
    Publication date: November 24, 2011
    Applicant: HANNSTAR DISPLAY CORP.
    Inventor: Bomin WENG
  • Switch elements and pixels
    Patent number: 8063864
    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: Grant
    Filed: December 12, 2007
    Date of Patent: November 22, 2011
    Assignee: Hannstar Display Corp.
    Inventors: Chang-Ching Yeh, Yun-Bok Lee, Chia-Hua Yu
  • Liquid crystal display
    Patent number: 8063497
    Abstract: A chip having a bump layout suitable for the chip on glass technology and a driving IC includes a plurality of first bumps and a plurality of second bumps for electrically connecting to a glass substrate of a displayer. The first and second bumps are disposed on a surface of the chip and near two opposite long sides of the chip respectively. The ratio of the total contacting area of the first bumps to that of the second bumps is between 0.8 and 1.2. Thus, a pressure applied on the chip and the glass substrate of the displayer for connection can be uniformly exerted all over the chip, and the stability of the connection is therefore improved.
    Type: Grant
    Filed: August 20, 2008
    Date of Patent: November 22, 2011
    Assignee: HannStar Display Corp.
    Inventors: Pao-Yun Tang, Wei-Hao Sun
  • Repair structure and method for liquid crystal display
    Patent number: 8059223
    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: Grant
    Filed: January 8, 2009
    Date of Patent: November 15, 2011
    Assignee: Hannstar Display Corp.
    Inventors: Kun-Chen Lee, Chia-Hua Yu, Sung-Chun Lin, Chang-Ching Yeh, Hsuan-Chen Liu
  • Liquid crystal display with high aperture ratio
    Patent number: 8059244
    Abstract: A thin film transistor liquid crystal display includes a substrate, a first conductive line disposed on the substrate, an inorganic insulating layer covering the substrate, a transparent electrode attached to the inorganic insulating layer, a second conductive line crossing the first conductive line, an inorganic passivation layer covering the substrate and a pixel electrode attached to the inorganic passivation layer and overlapping the transparent electrode and a part of the first conductive line.
    Type: Grant
    Filed: August 19, 2008
    Date of Patent: November 15, 2011
    Assignee: HannStar Display Corp.
    Inventors: Po-Sheng Shih, Tsu-Chiang Chang, Po-Yang Chen, Chao-Hui Wu
  • Method of driving a pixel and liquid crystal display panel implementing the method
    Patent number: 8054271
    Abstract: The invention provides methods of driving a pixel and liquid crystal display panels implementing the methods. The invention generates an ideal data voltage corresponding to a gray level of the pixel, and generates a compensated data voltage corresponding to the gray level according to a polarity change of the pixel. The charging period of the pixel is divided into a first charging time segment and a second charging time segment. The invention charges the pixel by the compensated data voltage during the first charging time segment, and charges the pixel by the compensated data voltage during the second charging time segment.
    Type: Grant
    Filed: June 18, 2007
    Date of Patent: November 8, 2011
    Assignee: Hannstar Display Corp.
    Inventors: Hsuan-Lin Pan, Po-Sheng Shih
  • POSITION-SHIFTING STRUCTURE
    Publication number: 20110267766
    Abstract: A position-shifting structure includes a position-shifting frame and a base. The position-shifting frame includes two lateral wall portions and a handle portion. The two lateral wall portions are correspondingly provided with a notch and a mounting hole each and the notches contain bevel surfaces. The base has a receiving space symmetrically provided with two inward protrusions; and the position-shifting frame is connected to and seated in the receiving space with the mounting holes pivotally engaged with the protrusions. When the object is received in the receiving space, the notches are engaged with two lateral projections of the object. When the handle portion is upward pulled, the bevel surfaces drive the object to move from its initial position in the receiving space.
    Type: Application
    Filed: November 23, 2010
    Publication date: November 3, 2011
    Applicant: HANNSTAR DISPLAY CORP.
    Inventor: Tsung-Yin Wu
  • Touch Panel
    Publication number: 20110248943
    Abstract: A touch panel is provided. The touch panel having a pixel area and a sensing area includes a first substrate and an opposite second substrate. A press sensing spacer is disposed on the sensing area of the first substrate. A press sensing stage is disposed on the sensing area of the second substrate, corresponding to the press sensing spacer. An alignment layer is disposed over the second substrate, covering the press sensing stage and the pixel area of the second substrate. In an embodiment, the height of the press sensing stage is greater than the height from the surface of the second substrate at the pixel area to the bottom of the alignment layer by at least 0.05 ?m.
    Type: Application
    Filed: April 7, 2011
    Publication date: October 13, 2011
    Applicant: HANNSTAR DISPLAY CORP.
    Inventors: Hsuan-Chen Liu, Yi-Chung Juan, Sung-Chun Lin, Wei-Chi Lin
  • Flat panel television
    Patent number: D646657
    Type: Grant
    Filed: January 11, 2010
    Date of Patent: October 11, 2011
    Assignee: HannStar Display Corp.
    Inventors: Min-Chieh Chai, Ming-Sung Lin
  • Monitor frame
    Patent number: D647909
    Type: Grant
    Filed: December 22, 2010
    Date of Patent: November 1, 2011
    Assignee: Hannstar Display Corp.
    Inventors: Chien-Te Chou, Ming-Sung Lin