Patents by Inventor Hsuan-Lin Pan

Hsuan-Lin Pan 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: 20090128724
    Abstract: The present invention provides a liquid crystal display with a plurality of pixel units. Each pixel unit includes two sub-pixels, and each sub-pixel includes a thin film transistor, a liquid crystal capacitor and a storage capacitor. One of the storage capacitors is a tunable capacitor. The tunable capacitor includes a first conductive layer, an insulating layer, a semiconductor layer with a area Asem, and a second metal layer. The second conductive layer has a first region with a area Acon overlapping with the semiconductor layer. The area Acon is less than the area Asem.
    Type: Application
    Filed: April 9, 2008
    Publication date: May 21, 2009
    Inventors: Po-Yang Chen, Po-Sheng Shih, Hsuan-Lin Pan, Jiunn-Shyong Lin
  • Publication number: 20090115761
    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: Application
    Filed: February 21, 2008
    Publication date: May 7, 2009
    Applicant: HANNSTAR DISPLAY CORP.
    Inventors: Po-Sheng Shih, Hsuan-Lin Pan
  • 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
  • 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: 20090109132
    Abstract: A display apparatus and a method for driving a display panel thereof are provided. The display panel includes an inducing signal readout line and N gate lines, in which N is a natural number. The inducing signal readout line is coupled to a plurality of inducing circuits. Each inducing circuit is coupled to one of the gate lines, and the Nth gate line is coupled to one of the inducing circuits. In the method, several gate pulses are provided to drive the gate lines sequentially to turn on the corresponding inducing circuits, wherein at least a portion of the driving duration of a gate pulse provided to the Nth gate line is in a blanking time between two frames.
    Type: Application
    Filed: January 22, 2008
    Publication date: April 30, 2009
    Applicant: HANNSTAR DISPLAY CORPORATION
    Inventors: Hsuan-Lin Pan, Chien-Yung Cheng
  • Publication number: 20090051644
    Abstract: A display device detects a touched position by making use of a 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 30, 2007
    Publication date: February 26, 2009
    Inventors: Po-Sheng Shih, Hsuan-Lin Pan, Po-Yang Chen
  • Publication number: 20080272990
    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: Application
    Filed: June 18, 2007
    Publication date: November 6, 2008
    Applicant: HANNSTAR DISPLAY CORP.
    Inventors: Hsuan-Lin Pan, Po-Sheng Shih
  • Publication number: 20080129912
    Abstract: The invention provides a liquid crystal display panel, comprising a plurality of scan lines fabricated along a first axis, a plurality of data lines fabricated along a second axis, a first pixel and a second pixel. Each of the first and second pixels is surrounded by two adjacent scan lines and two adjacent data lines. The first pixel comprises a first thin film transistor (TFT). The second pixel comprises a second and a third TFT. The gates of the second and third TFT are electrically connected to the two adjacent scan lines surrounding the second pixel, respectively. The third TFT further comprises a source electrically connected to a photo-sensor, and a drain electrically connected to an access line fabricated along the second axis. One end of the access line is electrically connected to a signal processor via a switch.
    Type: Application
    Filed: April 2, 2007
    Publication date: June 5, 2008
    Applicant: HANNSTAR DISPLAY CORP.
    Inventors: Po-Sheng Shih, Hsuan-Lin Pan
  • Patent number: 7375706
    Abstract: A pixel region is surrounded in any adjacent scan lines and any adjacent data lines. Two thin film transistor (TFT) groups that are controlled by different scan lines are located in each pixel region. The two data lines respectively send different polarity data to the pixel region through the two TFT groups. At least one capacitor is used to couple with the two TFT groups for providing a coupling effect to make sure the voltage in the two connection points simultaneously goes up and down.
    Type: Grant
    Filed: October 12, 2004
    Date of Patent: May 20, 2008
    Assignee: Hannstar Display Corporation
    Inventors: Po-Sheng Shih, Hsuan-Lin Pan
  • Publication number: 20080024414
    Abstract: A novel method for driving the data signal transmission and the photo signal readout in a pixel of a display as well as the novel pixel structure corresponding thereto is provided to overcome the lightness uniformity issue of the conventional touch sensitive display resulting from the configuration of readout line. In the present invention, the exclusive readout line for signal readout is not necessary anymore, and through the well-designed configuration for the novel pixel, the data line carrying on a data signal would transmit a photo signal to be read out and processed as well.
    Type: Application
    Filed: July 28, 2006
    Publication date: January 31, 2008
    Applicant: HANNSTAR DISPLAY CORPORATION
    Inventors: Po-Sheng Shih, Hsuan-Lin Pan
  • Publication number: 20070146278
    Abstract: A liquid crystal display panel and its driving method are provided. The liquid crystal display panel includes: a plurality of scanning lines and data lines; a pixel matrix having a plurality of pixels which are formed in the intersections of the scanning lines and the data lines; and each of the pixels having: a pixel electrode; a control electrode; a first thin film transistor having a gate electrode connected to the scanning line, a first electrode connected to the data line and a second electrode connected to the pixel electrode; a second thin film transistor having a gate electrode connected to another adjacent scanning line, a first electrode connected to another adjacent data line and a second electrode connected to the control electrode; and wherein one of the two most outside data lines of the pixel matrix is called a boundary data line, and an auxiliary line is disposed between the boundary data line and the pixel electrode adjacent to the boundary data line.
    Type: Application
    Filed: March 2, 2007
    Publication date: June 28, 2007
    Inventors: Hsuan-Lin Pan, Po-Sheng Shih
  • Publication number: 20070057977
    Abstract: A circuit for reducing the risk of electrostatic damage to flat panel displays during manufacture and use. A plurality of common voltage coupling points is provided for each of the plurality of driver integrated circuit, arranged to minimize the maximum distance between a signal line and a common voltage coupling point. This significantly reduces the potential for damage to the display by electrostatic discharge due to excessive active area voltage.
    Type: Application
    Filed: September 14, 2005
    Publication date: March 15, 2007
    Inventors: Po-Sheng Shih, Hsuan-Lin Pan
  • Publication number: 20050195139
    Abstract: A pixel region is surrounded in any adjacent scan lines and any adjacent data lines. Two thin film transistor (TFT) groups that are controlled by different scan lines are located in each pixel region. The two data lines respectively send different polarity data to the pixel region through the two TFT groups. At least one capacitor is used to couple with the two TFT groups for providing a coupling effect to make sure the voltage in the two connection points simultaneously goes up and down.
    Type: Application
    Filed: October 12, 2004
    Publication date: September 8, 2005
    Inventors: Po-Sheng Shih, Hsuan-Lin Pan