Patents by Inventor Pi-Chun Yeh

Pi-Chun Yeh 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: 11150755
    Abstract: A touch and display sensing integrated circuit and a touch display device using the same are provided. The touch display device includes a display and touch sensing integrated circuit and a glass substrate. The glass substrate includes touch/display common voltage electrodes, pixels, pads and conductive lines. Each pixel includes Q sub-pixels. The pads are electrically connected to the touch and display sensing integrated circuit. The Pth and (P+Q+1)th pads are electrically connected to the touch/display common voltage electrode through the corresponding conductive lines, respectively. The (P+1)th to (P+Q)th pads are electrically connected to 1st to Qth sub-pixels of a pixel through the corresponding conductive lines, respectively. The pads are arranged in a first direction, and the conductive lines, which are electrically connected to the pads in a second direction, are non-interlaced.
    Type: Grant
    Filed: December 17, 2019
    Date of Patent: October 19, 2021
    Assignee: FOCALTECH ELECTRONICS, LTD.
    Inventors: Ho-Nien Yang, Pi-Chun Yeh, Pei-Hung Hsiao
  • Publication number: 20200125204
    Abstract: A touch and display sensing integrated circuit and a touch display device using the same are provided. The touch display device includes a display and touch sensing integrated circuit and a glass substrate. The glass substrate includes touch/display common voltage electrodes, pixels, pads and conductive lines. Each pixel includes Q sub-pixels. The pads are electrically connected to the touch and display sensing integrated circuit. The Pth and (P+Q+1)th pads are electrically connected to the touch/display common voltage electrode through the corresponding conductive lines, respectively. The (P+1)th to (P+Q)th pads are electrically connected to 1st to Qth sub-pixels of a pixel through the corresponding conductive lines, respectively. The pads are arranged in a first direction, and the conductive lines, which are electrically connected to the pads in a second direction, are non-interlaced.
    Type: Application
    Filed: December 17, 2019
    Publication date: April 23, 2020
    Inventors: HO-NIEN YANG, PI-CHUN YEH, PEI-HUNG HSIAO
  • Patent number: 10551954
    Abstract: A touch and display sensing integrated circuit and a touch display device using the same are provided. The touch display device includes a display and touch sensing integrated circuit and a glass substrate. The glass substrate includes touch/display common voltage electrodes, pixels, pads and conductive lines. Each pixel includes Q sub-pixels. The pads are electrically connected to the touch and display sensing integrated circuit. The Pth and (P+Q+1)th pads are electrically connected to the touch/display common voltage electrode through the corresponding conductive lines, respectively. The (P+1)th to (P+Q)th pads are electrically connected to 1st to Qth sub-pixels of a pixel through the corresponding conductive lines, respectively. The pads are arranged in a first direction, and the conductive lines, which are electrically connected to the pads in a second direction, are non-interlaced.
    Type: Grant
    Filed: February 8, 2018
    Date of Patent: February 4, 2020
    Assignee: FOCALTECH ELECTRONICS, LTD.
    Inventors: Ho-Nien Yang, Pi-Chun Yeh, Pei-Hung Hsiao
  • Patent number: 10234972
    Abstract: A touch display panel and controlling method thereof are provided. The touch display panel includes a first substrate, a second substrate, a display medium layer, a first common electrode, and a pixel structure including a pixel electrode and a second common electrode. The first common electrode has a voltage signal. In a display mode, the pixel electrode is provided with a data signal so that a first voltage difference exists between the first and the second common electrodes. The arrangement of the display medium layer varies according to the data signal and the first voltage difference. In a touch mode, the second common electrode is provided with an indication signal whose waveform alternates between first and second voltage values. When the indication signal is at the first voltage value and a second voltage value respectively, a second and a third voltage differences exist between the first and second common electrodes.
    Type: Grant
    Filed: March 22, 2017
    Date of Patent: March 19, 2019
    Assignee: AU OPTRONICS CORPORATION
    Inventors: Yi-Chun Wang, Pi-Chun Yeh, Hsin-Chun Huang, Ching-Sheng Cheng
  • Patent number: 10209798
    Abstract: A touch display device includes a plurality of scan lines including first portion scan lines and second portion scan lines; a plurality of data lines crossing the plurality of scan lines; a scan driver outputs a plurality of first portion scan signals to the first portion scan lines in a first display scan period in a frame, a plurality of second portion scan signals to the second portion scan lines in a second display scan period in the frame; and a data driver outputs a plurality of first portion display signals corresponding to the plurality of first portion scan signals in the first display scan period; a plurality of second portion display signals corresponding to the plurality of second portion scan signals in the second display scan period.
    Type: Grant
    Filed: February 22, 2017
    Date of Patent: February 19, 2019
    Assignee: AU OPTRONICS CORPORATION
    Inventors: Pi-Chun Yeh, Shun-Chien Huang, Ching-Sheng Cheng
  • Patent number: 10126851
    Abstract: An in-cell touch display device includes an in-cell touch panel, a backlight module driving circuit, a backlight module, a gate driving circuit, a touch processing circuit and a control circuit. The in-cell touch panel includes a plurality of gate lines and a plurality of touch sensing units. The control circuit is used for defining a plurality of gate line driving periods separated from each other in the time and at least one touch sensing period in a frame period. The touch sensing period is between two adjacent gate line driving periods. During the gate line driving periods, the control circuit controls the gate driving circuit to drive the gate lines sequentially and outputs a signal to the backlight module driving circuit to turn on the backlight module. During each touch sensing period, the control circuit controls the touch processing circuit to output a driving signal to the touch sensing units and outputs a signal to the backlight module driving circuit to turn off the backlight module.
    Type: Grant
    Filed: February 18, 2016
    Date of Patent: November 13, 2018
    Assignee: AU OPTRONICS CORPORATION
    Inventors: Pi-Chun Yeh, Ching-Sheng Cheng
  • Patent number: 10116225
    Abstract: A gate line drive circuit includes first, second and third transistors, and a boosting capacitor. The first transistor has a control terminal connected to a charge/discharge control signal of a previous-stage gate line drive circuit, a first terminal, and a second terminal connected to a control node. The second transistor has a control terminal connected to the control node, a first terminal, and a second terminal connected to a first timing signal. The third transistor has a control terminal connected to the control node, a first terminal, and a second terminal connected to a second timing signal. The boosting capacitor has one terminal connected to the control node, and the other terminal connected to the first terminal of the third transistor and a control terminal of a first transistor of a next-stage gate line drive circuit. The first terminal of the second transistor is connected to a gate line.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: October 30, 2018
    Assignee: FOCALTECH SYSTEMS CO., LTD.
    Inventor: Pi-Chun Yeh
  • Publication number: 20180294728
    Abstract: A gate line drive circuit includes first, second and third transistors, and a boosting capacitor. The first transistor has a control terminal connected to a charge/discharge control signal of a previous-stage gate line drive circuit, a first terminal, and a second terminal connected to a control node. The second transistor has a control terminal connected to the control node, a first terminal, and a second terminal connected to a first timing signal. The third transistor has a control terminal connected to the control node, a first terminal, and a second terminal connected to a second timing signal. The boosting capacitor has one terminal connected to the control node, and the other terminal connected to the first terminal of the third transistor and a control terminal of a first transistor of a next-stage gate line drive circuit. The first terminal of the second transistor is connected to a gate line.
    Type: Application
    Filed: June 29, 2017
    Publication date: October 11, 2018
    Inventor: Pi-Chun YEH
  • Publication number: 20180239477
    Abstract: A touch and display sensing integrated circuit and a touch display device using the same are provided. The touch display device includes a display and touch sensing integrated circuit and a glass substrate. The glass substrate includes touch/display common voltage electrodes, pixels, pads and conductive lines. Each pixel includes Q sub-pixels. The pads are electrically connected to the touch and display sensing integrated circuit. The Pth and (P+Q+1)th pads are electrically connected to the touch/display common voltage electrode through the corresponding conductive lines, respectively. The (P+1)th to (P+Q)th pads are electrically connected to 1st to Qth sub-pixels of a pixel through the corresponding conductive lines, respectively. The pads are arranged in a first direction, and the conductive lines, which are electrically connected to the pads in a second direction, are non-interlaced.
    Type: Application
    Filed: February 8, 2018
    Publication date: August 23, 2018
    Inventors: HO-NIEN YANG, PI-CHUN YEH, PEI-HUNG HSIAO
  • Publication number: 20180143472
    Abstract: A display panel includes a first sub-pixel, a second sub-pixel, and a third sub-pixel. The first sub-pixel has a relatively large feed-through voltage change and relatively small transmittance, and/or the first sub-pixel has relatively large line impedance and relatively small transmittance. By means of this design, a degree of image flicker is reduced.
    Type: Application
    Filed: November 16, 2017
    Publication date: May 24, 2018
    Inventors: Yu-Jen CHEN, Pi-Chun YEH, Hsin-Chun HUANG, Ching-Sheng CHENG
  • Publication number: 20170277318
    Abstract: A touch display panel and controlling method thereof are provided. The touch display panel includes a first substrate, a second substrate, a display medium layer, a first common electrode, and a pixel structure including a pixel electrode and a second common electrode. The first common electrode has a voltage signal. In a display mode, the pixel electrode is provided with a data signal so that a first voltage difference exists between the first and the second common electrodes. The arrangement of the display medium layer varies according to the data signal and the first voltage difference. In a touch mode, the second common electrode is provided with an indication signal whose waveform alternates between first and second voltage values. When the indication signal is at the first voltage value and a second voltage value respectively, a second and a third voltage differences exist between the first and second common electrodes.
    Type: Application
    Filed: March 22, 2017
    Publication date: September 28, 2017
    Inventors: Yi-Chun WANG, Pi-Chun YEH, Hsin-Chun HUANG, Ching-Sheng CHENG
  • Publication number: 20170262106
    Abstract: A touch display device includes a plurality of scan lines including first portion scan lines and second portion scan lines; a plurality of data lines crossing the plurality of scan lines; a scan driver outputs a plurality of first portion scan signals to the first portion scan lines in a first display scan period in a frame, a plurality of second portion scan signals to the second portion scan lines in a second display scan period in the frame; and a data driver outputs a plurality of first portion display signals corresponding to the plurality of first portion scan signals in the first display scan period; a plurality of second portion display signals corresponding to the plurality of second portion scan signals in the second display scan period.
    Type: Application
    Filed: February 22, 2017
    Publication date: September 14, 2017
    Inventors: Pi-Chun YEH, Shun-Chien HUANG, Ching-Sheng CHENG
  • Publication number: 20170123537
    Abstract: An in-cell touch display device includes an in-cell touch panel, a backlight module driving circuit, a backlight module, a gate driving circuit, a touch processing circuit and a control circuit. The in-cell touch panel includes a plurality of gate lines and a plurality of touch sensing units. The control circuit is used for defining a plurality of gate line driving periods separated from each other in the time and at least one touch sensing period in a frame period. The touch sensing period is between two adjacent gate line driving periods. During the gate line driving periods, the control circuit controls the gate driving circuit to drive the gate lines sequentially and outputs a signal to the backlight module driving circuit to turn on the backlight module. During each touch sensing period, the control circuit controls the touch processing circuit to output a driving signal to the touch sensing units and outputs a signal to the backlight module driving circuit to turn off the backlight module.
    Type: Application
    Filed: February 18, 2016
    Publication date: May 4, 2017
    Inventors: Pi-Chun YEH, Ching-Sheng CHENG
  • Publication number: 20160377913
    Abstract: An LCD panel includes first and second substrates, signal lines, pixel structures, first, second, and third color filter pattern layers, a light-shielding pattern layer, and a liquid crystal medium. The second substrate has first and second light-shielding regions and first, second and third light-transmissive regions. The first and second light-shielding regions define the first, second and third light-transmissive regions. The first color filter pattern layer is correspondingly located in the first light-transmissive regions and the first light-shielding regions. The second color filter pattern layer is correspondingly located in the second light-transmissive regions and the first light-shielding regions. The first and second color filter pattern layers are stacked together in the first light-shielding regions. The third color filter pattern layer is correspondingly located in the third light-transmissive regions.
    Type: Application
    Filed: December 27, 2015
    Publication date: December 29, 2016
    Inventors: Pi-Chun Yeh, Ching-Sheng Cheng
  • Patent number: 8952945
    Abstract: A display and a gate driver are disclosed herein, in which the gate driver includes a number of gate driving units, and each of the gate driving units includes a control circuit, a boost circuit, a driver output circuit and a voltage stabilized circuit. The control circuit is electrically connected to a previous gate driving unit and a next gate driving unit. The boost circuit is electrically connected to the control circuit for driving the next gate driving unit. The driver output circuit is electrically connected to the boost circuit and a pixel array for driving at least one scan line in the pixel array. The voltage stabilizing circuit is electrically connected to the boost circuit and the driver output circuit.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: February 10, 2015
    Assignee: AU Optronics Corporation
    Inventors: Kuan-Chun Huang, Chen-Yuan Lei, Liang-Chen Lin, Pi-Chun Yeh
  • Publication number: 20140035889
    Abstract: A display and a gate driver are disclosed herein, in which the gate driver includes a number of gate driving units, and each of the gate driving units includes a control circuit, a boost circuit, a driver output circuit and a voltage stabilized circuit. The control circuit is electrically connected to a previous gate driving unit and a next gate driving unit. The boost circuit is electrically connected to the control circuit for driving the next gate driving unit. The driver output circuit is electrically connected to the boost circuit and a pixel array for driving at least one scan line in the pixel array. The voltage stabilizing circuit is electrically connected to the boost circuit and the driver output circuit.
    Type: Application
    Filed: March 13, 2013
    Publication date: February 6, 2014
    Applicant: AU OPTRONICS CORPORATION
    Inventors: Kuan-Chun HUANG, Chen-Yuan LEI, Liang-Chen LIN, Pi-Chun YEH
  • Patent number: 8377517
    Abstract: A method of forming transflective LCD panel includes forming a compensation material having reactive liquid crystal monomers, thermal initiators and a solvent on a first substrate. Then, a first heating process is performed on the compensation material to remove parts of the solvent and then a photo-polymerizing process is performed, and parts of the compensation material disposed in a reflective region are turned into birefringent zones. Moreover, a second heating process is performed, in which the first substrate is kept in a predetermined temperature for a predetermined time, and thereafter nitrogen gas flows in to the chamber to form a non-oxygen condition. Accordingly, parts of the compensation material disposed in a transmission region are turned into isotropic zones. The predetermined temperature of the second heating process is higher than the clearing point of the reactive liquid crystal monomers.
    Type: Grant
    Filed: May 11, 2009
    Date of Patent: February 19, 2013
    Assignee: AU Optronics Corp.
    Inventors: Pi-Chun Yeh, Yue-Shih Jeng, Chih-Jen Hu
  • Patent number: 7898604
    Abstract: A three-dimension display suitable for a viewer wearing a pair of eyeglasses is disclosed. The eyeglasses have two circular polarized eyeglass lenses with different polarizations. The three-dimension display includes a flat display panel, a quarter-wave plate and a patterned half-wave plate. The flat display panel has a plurality of pixels arranged in an array, wherein the flat display panel is suitable to display a linear polarized image. The quarter-wave plate is disposed between the flat display panel and the eyeglasses. The patterned half-wave plate is disposed between the flat display panel and the eyeglasses, wherein the patterned half-wave plate corresponds to a part of the pixels. The present invention also provides a fabrication method of a three-dimension display.
    Type: Grant
    Filed: September 15, 2010
    Date of Patent: March 1, 2011
    Assignee: Au Optronics Corporation
    Inventors: Pi-Chun Yeh, Yue-Shih Jeng, Chih-Jen Hu
  • Publication number: 20110002037
    Abstract: A three-dimension display suitable for a viewer wearing a pair of eyeglasses is disclosed. The eyeglasses have two circular polarized eyeglass lenses with different polarizations. The three-dimension display includes a flat display panel, a quarter-wave plate and a patterned half-wave plate. The flat display panel has a plurality of pixels arranged in an array, wherein the flat display panel is suitable to display a linear polarized image. The quarter-wave plate is disposed between the flat display panel and the eyeglasses. The patterned half-wave plate is disposed between the flat display panel and the eyeglasses, wherein the patterned half-wave plate corresponds to a part of the pixels. The present invention also provides a fabrication method of a three-dimension display.
    Type: Application
    Filed: September 15, 2010
    Publication date: January 6, 2011
    Applicant: AU OPTRONICS CORPORATION
    Inventors: Pi-Chun Yeh, Yue-Shih Jeng, Chih-Jen Hu
  • Patent number: 7850359
    Abstract: An optical film of a display and a method for producing the same are provided. The display includes a light source and an optical film. The light source provides the first light. The optical film includes at least one coating layer. The coating layer has a first surface and a second surface opposite to the first surface. The coating layer is adapted to absorb the first light from the first surface to excite a second light to emit through the second surface. The intensity of the second light is larger than that of the first light.
    Type: Grant
    Filed: April 18, 2008
    Date of Patent: December 14, 2010
    Assignee: Au Optronics Corp.
    Inventors: Yue-Shih Jeng, Pi-Chun Yeh, Chih-Jen Hu, Feng-Yuan Gan