Patents by Inventor Po-Sheng Shih

Po-Sheng Shih 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: 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: 8487906
    Abstract: A method for detecting a touched position on a touch device including a first conductive layer and sensing electrodes disposed on one side of the first conductive layer and separated from each other is disclosed. The method includes providing a first voltage to the first conductive layer; receiving a touch signal in response to a touched position of the touch device to change the first voltage at an area of the first conductive layer; measuring the sensing electrodes detecting the variation of the first voltage to obtain voltage signals; obtaining a first sensing position according to the voltage signals and a position computing mode; obtaining a second sensing position according to the first sensing position and a correction mode. The area corresponds to the touched position, the second sensing position is equal to the touched position, and the correction mode has a first curve relation.
    Type: Grant
    Filed: June 10, 2010
    Date of Patent: July 16, 2013
    Assignee: Chimel Innolux Corporation
    Inventors: Po-Yang Chen, Po-Sheng Shih
  • Patent number: 8477117
    Abstract: An embedded optical induction input device and method of implementing the same. Such a device includes a light sensing circuit and a conversion circuit. The light sensing circuit generates an induced current signal based on the variations of the intensity of light irradiation received as caused by a touch-control-position event; and the conversion circuit is connected to the light sensing circuit and receives an induced current derived therefrom. The conversion circuit is provided with a first transistor and a second transistor coupled together, that are driven by a positive and a negative biases having the same period but different phases, thus the induced current signals are converted into induced voltage signals based on the alternative turn-on's and turn-off's of the first transistor and the second transistor.
    Type: Grant
    Filed: February 13, 2009
    Date of Patent: July 2, 2013
    Assignee: Hannstar Display Corporation
    Inventors: Po-Yang Chen, Po-Sheng Shih
  • Patent number: 8462282
    Abstract: A liquid crystal display and a driving method thereof are provided. A pixel of the liquid crystal display includes a first pixel capacitor, a second pixel capacitor, a first transistor, and a second transistor. A first terminal and a second terminal of the first pixel capacitor are respectively coupled to the first transistor and a common voltage. A first terminal and a second terminal of the second pixel capacitor are respectively coupled to the second transistor and the common voltage. A voltage between the first and the second terminals of the first capacitor is differentiated from a voltage between the first and the second terminals of the second capacitor by modulating the common voltage. A coupling voltage of the first pixel capacitor is differentiated from a coupling voltage of the second pixel capacitor by modulating the common voltage. Thereby, the phenomenon of color wash-out is reduced.
    Type: Grant
    Filed: September 20, 2009
    Date of Patent: June 11, 2013
    Assignee: Hannstar Display Corporation
    Inventors: Po-Yang Chen, Po-Sheng Shih
  • Publication number: 20130141356
    Abstract: A touch panel includes: a substrate; a transparent conductive layer located on a surface of the substrate; a number of sensing electrodes electrically connected with the transparent conductive layer and spaced from each other. The touch panel comprises a touch-view area and a trace area. A conductive trace located on the trace area, for transmitting an electrical signal between the transparent conductive layer and an external controller. The touch-view area includes at least one first touch-view area, the number of the plurality of sensing electrodes in per unit area located on the at least one first touch-view area is greater than the number of the plurality of sensing electrodes in per unit area located on the rest of the touch-view area.
    Type: Application
    Filed: August 22, 2012
    Publication date: June 6, 2013
    Applicant: Shih Hua Technology Ltd.
    Inventors: Po-Sheng SHIH, Chun-Lung HUANG
  • Patent number: 8454787
    Abstract: A method for making a patterned conductive element includes following steps. A substrate is provided. A patterned adhesive layer is applied on a surface of the substrate. A carbon nanotube layer is placed on a surface of the patterned adhesive layer. The patterned adhesive layer is solidified to obtain a fixed part of the carbon nanotube layer and a non-fixed part of carbon nanotube layer. The non-fixed part of carbon nanotube layer is removed.
    Type: Grant
    Filed: December 29, 2011
    Date of Patent: June 4, 2013
    Assignee: Shih Hua Technology Ltd.
    Inventors: Po-Sheng Shih, Jia-Shyong Cheng
  • Publication number: 20130135249
    Abstract: A capacitive touch panel includes a substrate; a transparent conductive layer with anisotropic impedance located on the substrate; a plurality of driving sensing electrodes located on the opposite two sides of the transparent conductive layer; at least one sensing unit connected to the plurality of driving sensing electrodes for scanning the plurality of driving sensing electrodes; at least one voltage compensation unit which provides a offset voltage, at least one voltage compensation unit has a first end and a second end, the first end of at least one voltage compensation unit is at least connected to one of the plurality of driving sensing electrodes, the second end of at least one voltage compensation unit is connected to a grounding voltage. The present application also relates to a driving method for preventing leakage current of the capacitive touch panel.
    Type: Application
    Filed: June 1, 2012
    Publication date: May 30, 2013
    Applicant: SHIH HUA TECHNOLOGY LTD.
    Inventors: PO-YANG CHEN, FENG-YU KUO, PO-SHENG SHIH, CHIEN-YUNG CHENG, CHUN-LUNG HUANG
  • Publication number: 20130135831
    Abstract: A touch module includes a touch element, a shell body and a decoration film. The shell body defines a curved touch area. The curved touch area is figured to touch the touch element. The touch element covers the curved touch area. The decoration film is an outer layer of the touch module. The shell body, the touch element and the decoration film are incorporated into an integrated structure.
    Type: Application
    Filed: April 12, 2012
    Publication date: May 30, 2013
    Applicant: SHIH HUA TECHNOLOGY LTD.
    Inventors: YU-JU HSU, PO-SHENG SHIH
  • Publication number: 20130134627
    Abstract: A method for making a touch module is provided. The method includes the following steps. A touch element, a decoration film and a mold is provided. The touch element is flexible, the mold includes a female mold, and a male mold corresponding to the female mold. The touch element is fixed on the female mold, and the decoration film is fastened to the male mold. The mold is closed. A plastic material is injected into the mold until the plastic material is formed into a shell body, and the touch module including the touch element and the decoration film is formed. Wherein, both the touch element and the decoration film are fixed on the shell body. The mold is opened. And the touch module is removed.
    Type: Application
    Filed: April 12, 2012
    Publication date: May 30, 2013
    Applicant: SHIH HUA TECHNOLOGY LTD.
    Inventors: YU-JU HSU, PO-SHENG SHIH
  • 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: 8441459
    Abstract: An in-cell capacitive touch panel is disclosed. The present invention utilizes a sensing unit that comprises a sensing liquid crystal capacitor and three transistors to detect touch events. A first transistor is connected to a first gate line and the sensing liquid crystal capacitor and controlled by the first gate line to charge the sensing liquid crystal capacitor. A second transistor together with a third transistor functions as a capacitance-current converter. The second transistor generates an output current according to the voltage of a first electrode of the sensing liquid crystal capacitor. A second gate line controls the third transistor to transfer the output current through a readout line to a readout unit that determines the touch positions. Thus, the in-cell capacitive touch panel of the present invention can use a simple-structure readout circuit to achieve superior readout accuracy and is adaptive to various sizes of touch panels.
    Type: Grant
    Filed: March 17, 2009
    Date of Patent: May 14, 2013
    Assignee: Hannstar Display Corporation
    Inventors: Po-Yang Chen, Po-Sheng Shih, Kei-Hsiung Yang
  • Patent number: 8400421
    Abstract: A multi-touch detecting method is adapted for detecting locations of touched points on a touch panel including first and second conductive films, and includes following steps. First measuring points of the first conductive film distributed along X-axis of a Cartesian plane are scanned, and x-components are determined accordingly. Second measuring points of the second conductive film distributed along Y-axis of the Cartesian plane are scanned, and y-components are determined accordingly. A first voltage is applied to the first conductive film, and A second voltage is applied to at least one of the second measuring points with the location on the Y-axis adjacent to or overlapping one of the y-components. Voltages at the first measuring points with the locations on the X-axis adjacent to or overlapping the x-components are measured sequentially and one of the y-components and one of the x-components are outputted.
    Type: Grant
    Filed: June 29, 2010
    Date of Patent: March 19, 2013
    Assignee: Chimei Innolux Corporation
    Inventors: Po-Yang Chen, Po-Sheng Shih, Chih-Han Chao, Chien-Yung Cheng
  • Publication number: 20130057504
    Abstract: A method for detecting a touch spot of the touch panel includes the following steps. The electrode pairs are scanned along the impedance direction for determining a first coordinate. A number of electrode pairs near the first coordinate are selected to obtain an electrode pair signal. The first driving electrodes of the selected electrode pairs are scanned to obtain a first signal. The second driving electrodes of the selected electrode pairs are scanned to obtain a second signal. A second coordinate is determined according to the electrode pair signal, first signal, and second signal. Finally, the touch spot is determined according to the first coordinate, and second coordinate.
    Type: Application
    Filed: December 29, 2011
    Publication date: March 7, 2013
    Applicant: SHIH HUA TECHNOLOGY LTD.
    Inventors: CHUN-LUNG HUANG, CHIEN-YUNG CHENG, PO-YANG CHEN, PO-SHENG SHIH
  • Publication number: 20130057508
    Abstract: A touch panel includes an insulating substrate, a first conductive layer, and a second conductive layer. The insulating substrate has two opposite surfaces. The first conductive layer, fixed on one surface of the insulating substrate, has a minimum impedance along a first minimum impedance direction. The second conductive layer, fixed on the other surface of the insulating substrate, has a minimum impedance along a second minimum impedance direction. The first minimum impedance direction is substantially perpendicular to the second minimum impedance direction.
    Type: Application
    Filed: August 31, 2012
    Publication date: March 7, 2013
    Applicant: SHIH HUA TECHNOLOGY LTD.
    Inventors: PO-SHENG SHIH, PO-YANG CHEN
  • Publication number: 20130057943
    Abstract: An electronic paper display device includes an electronic paper display panel, and a functional layer. The electronic paper display panel includes a common electrode layer and a display surface. The functional layer is located on the display surface and includes a carbon nanotube touching functional layer. A distance between the common electrode layer and the carbon nanotube touching functional layer is above 100 microns and equal to or less than 2 millimeters.
    Type: Application
    Filed: December 27, 2011
    Publication date: March 7, 2013
    Applicant: Shih Hua Technology Ltd.
    Inventors: PO-SHENG SHIH, JIA-SHYONG CHENG, PO-YANG CHEN
  • Publication number: 20130048353
    Abstract: A transparent conductive film a number of first transparent conductive stripes and a number of transparent conductive stripes electrically connected with each other. The first conductive stripes are spaced from each other and extend substantially along a first direction, and the second transparent conductive stripes are spaced from each other and extend substantially along a second direction. The plurality of second transparent conductive stripes are disposed between and electrically connected to adjacent first transparent conductive stripes. The first transparent conductive stripes and the second conductive stripes are arranged in patterns such that the transparent conductive film has an anisotropic impedance. One of the first direction and the second direction is a low impedance direction. A resistivity of the transparent conductive film in the low impedance direction is smaller than the resistivity of the transparent conductive film in any other direction.
    Type: Application
    Filed: December 29, 2011
    Publication date: February 28, 2013
    Applicant: SHIH HUA TECHNOLOGY LTD.
    Inventors: MING-TIEN LIN, PO-SHENG SHIH
  • Publication number: 20130048349
    Abstract: A transparent conductive film includes at least one continuous transparent conductive layer and a number of transparent conductive stripes spaced from each other and extending substantially along a low impedance direction. The transparent conductive stripes are disposed on and electrically contact a surface of the at least one transparent conductive layer. A resistivity of the transparent conductive film in the low impedance direction is less than the resistivity in any other direction. A touch panel includes the transparent conductive film.
    Type: Application
    Filed: December 29, 2011
    Publication date: February 28, 2013
    Applicant: SHIH HUA TECHNOLOGY LTD.
    Inventors: MING-TIEN LIN, PO-SHENG SHIH
  • Publication number: 20130048354
    Abstract: A transparent conductive film includes a number of first transparent conductive stripes extending along a first direction and a number of second transparent conductive stripes extending along a second direction and intersecting the number of first transparent conductive stripes. The first conductive stripes are spaced from each other and extend substantially along a first direction. The second transparent conductive stripes are spaced from each other and extend substantially along a second direction. The first transparent conductive stripes are electrically connected with the second transparent conductive stripes. The first transparent conductive stripes and the second conductive stripes are arranged in patterns such that the transparent conductive film has an anisotropic impedance. The first direction is a low impedance direction.
    Type: Application
    Filed: December 29, 2011
    Publication date: February 28, 2013
    Applicant: SHIH HUA TECHNOLOGY LTD.
    Inventors: MING-TIEN LIN, PO-SHENG SHIH
  • Publication number: 20130043116
    Abstract: A touch panel includes an insulating substrate, a transparent conductive layer, a number of electrodes, a number of conductive wires, and at least one conductive zone. The transparent conductive layer corresponding to a touch area of the touch panel is fixed on the insulating substrate. The electrodes are electrically connected to the transparent conductive layer. The conductive wires are electrically connected to a controller and are respectively electrically connected to the electrodes. The at least one conductive zone has two ends. One of the two ends of the at least one conductive zone is electrically connected to the controller. The at least one conductive zone and the conductive wires are disposed in a trace area of the touch panel at a distance.
    Type: Application
    Filed: May 21, 2012
    Publication date: February 21, 2013
    Applicant: SHIH HUA TECHNOLOGY LTD.
    Inventors: PO-SHENG SHIH, CHIEN-YUNG CHENG
  • Publication number: 20130027322
    Abstract: A display screen including an optical element and a chromaticity improving layer is provided. A light transmittance of the optical element to visible light having short wavelengths is lower than a light transmittance to visible light having long wavelengths. A light transmittance of the chromaticity improving layer to visible light having short wavelengths is higher than a light transmittance to visible light having long wavelengths. A display device using the display screen is also provided.
    Type: Application
    Filed: December 26, 2011
    Publication date: January 31, 2013
    Applicant: SHIH HUA TECHNOLOGY LTD.
    Inventors: YU-JU HSU, PO-SHENG SHIH