Patents by Inventor Tung-Kai Liu

Tung-Kai Liu 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: 20170017340
    Abstract: A touch display panel capable of operating in a display mode and a touch mode. In the touch mode, a data line transmits a data voltage signal to a pixel electrode of the touch display panel, and a corresponding common electrode is at a constant voltage level. In the touch mode, the data line transmits a touch driving signal to the pixel electrode and then receives a touch sensing signal from the pixel electrode, and the corresponding common electrode is floating.
    Type: Application
    Filed: June 23, 2016
    Publication date: January 19, 2017
    Inventors: Tung-Kai LIU, Jen-Chieh PENG, Chia-Hao TSAI, Chih-Hao CHANG, Bo-Feng CHEN
  • Publication number: 20170017327
    Abstract: A touch display device is provided. The touch display device includes a first substrate; a transistor disposed over the first substrate; a first insulating layer disposed over the transistor; a first electrode disposed over the first insulating layer; a second insulating layer disposed over the first electrode; a conductive layer disposed over the second insulating layer, wherein the conductive layer includes a touch signal line; a third insulating layer disposed over the conductive layer; and a second electrode disposed over the third insulating layer, wherein one of the first electrode and the second electrode is electrically connected to the touch signal line, wherein another one of the first electrode and the second electrode is electrically connected to the transistor and at least partially overlaps the conductive layer.
    Type: Application
    Filed: July 15, 2016
    Publication date: January 19, 2017
    Inventors: Chih-Hao CHANG, Bo-Feng CHEN, Chia-Hao TSAI, Tung-Kai LIU, Jen-Chieh PENG
  • Publication number: 20170017325
    Abstract: A touch display device comprising a touch display panel, a first de-multiplexer and a driving integrated circuit (IC) is provided. The touch display panel includes a plurality of first display data transmitting wires and a touch data transmitting wire. The first de-multiplexer includes a plurality of first output terminals and a first input terminal. The driving IC includes a multiplexer including a second output terminal. The first output terminals of the first de-multiplexer are electrically connected to the first display data transmitting wires and the touch data transmitting wire, respectively. The second output terminal of the multiplexer is electrically connected to the first input terminal of the first de-multiplexer through a first lead.
    Type: Application
    Filed: June 15, 2016
    Publication date: January 19, 2017
    Inventors: Chia-Hao Tsai, Jen-Chieh Peng, Chih-Hao Chang, Bo-Feng Chen, Tung-Kai Liu
  • Publication number: 20170017341
    Abstract: A touch display panel includes common electrodes arranged along a first direction and a second direction, At least one common electrode having a first side and a second side parallel to the second direction, and metal wires extending parallel along the second direction. At least one common electrode is connected with one of the metal wires via at least a contact hole. The common electrodes include a first common electrode and a second common electrode that are adjacent in the first direction. The second side of the first common electrode is adjacent to the first side of the second electrode. The distance between the contact hole of the first common electrode and the second side of the first common electrode is equal to the distance between the contact hole of the second common electrode and the first side of the second common electrode.
    Type: Application
    Filed: July 6, 2016
    Publication date: January 19, 2017
    Inventors: Bo-Feng CHEN, Tung-Kai LIU, Chih-Hao CHANG, Chia-Hao TSAI, Jen-Chieh PENG
  • Publication number: 20170017320
    Abstract: A touch display panel includes: a common electrode; a first switching element connected between a voltage line and the common electrode; a data line transmitting a data signal during a display period and a touch sensing signal during a touch period; a pixel electrode; a second switching element connected between the data line and the pixel electrode; and a third switching element connected between the data line and the common electrode. During the display period, the first switching element and the second switching element are turned on and the third switching element is turned off. During the touch period, the first switching element and the second switching element are turned off and the third switching element is turned on.
    Type: Application
    Filed: July 6, 2016
    Publication date: January 19, 2017
    Inventors: Chia-Hao TSAI, Chih-Hao CHANG, Bo-Feng CHEN, Tung-Kai LIU, Jen-Chieh PENG
  • Publication number: 20170017328
    Abstract: A touch display panel includes a substrate, a first metal layer, a second metal layer, common electrode pads, and a driving IC. The substrate includes a display area and a non-display area. The first metal layer disposed on the substrate includes gate lines and first metal wires, wherein the gate lines extend along a first direction. The second metal layer disposed on the substrate includes data lines and second metal wires, wherein the data lines extend along a second direction. The common electrode pads are disposed on the display area along the first direction and the second direction. The first metal wires and/or second metal wires are connected the common electrode pads and the driving IC. The first metal wires and/or second metal wires extend to the non-display area and extend to the display area along the first direction.
    Type: Application
    Filed: July 15, 2016
    Publication date: January 19, 2017
    Inventors: Chia-Hao TSAI, Jen-Chieh PENG, Chih-Hao CHANG, Bo-Feng CHEN, Tung-Kai LIU
  • Publication number: 20160364069
    Abstract: A touch display device including a first substrate, a second substrate, and a display medium is provided. The first substrate includes a plurality of pixel units, a first touch electrode, and a plurality of first connection lines. The pixel units are arranged in an array. The first touch electrode corresponds to at least one pixel unit. The first connection lines are extended along a first direction and coupled between the first touch electrode and a touch integrated circuit. The display medium is disposed between the first and second substrates.
    Type: Application
    Filed: June 6, 2016
    Publication date: December 15, 2016
    Inventors: Chu-Hung TSAI, Hung-Kun CHEN, Yu-Chien KAO, Chia-Hsiung CHANG, Jen-Chieh PENG, Chia-Hao TSAI, Chih-Hao CHANG, Bo-Feng CHEN, Tung-Kai LIU
  • Publication number: 20160357049
    Abstract: A touch display device including a first substrate, a second substrate, a display medium, and a pixel array structure is provided. The pixel array structure includes a scan line, a data line, an active device, pixel electrodes, a signal electrode layer and a signal transmission layer. The scan line intersects the data line. The active device is connected to the scan line and the data line. The pixel electrodes are arranged in an array. The signal electrode layer includes signal electrodes. The signal transmission layer includes a signal line disposed between two adjacent columns of the pixel electrodes and electrically connected to one of the signal electrodes. The data line includes at least a portion located outside of the signal line.
    Type: Application
    Filed: May 31, 2016
    Publication date: December 8, 2016
    Inventors: Hung-Kun Chen, Hsieh-Li Chou, Li-Wei Sung, Tung-Kai Liu, Chia-Hao Tsai, Chih-Hao Chang, Bo-Feng Chen, Yu-Chien Kao
  • Publication number: 20160357286
    Abstract: A display device is provided. The display device includes a first substrate, wherein the first substrate includes: a plurality of scan lines disposed on the first substrate; a plurality of data lines disposed on the first substrate, wherein the plurality of the scan lines and the plurality of the data lines define a plurality of sub-pixels; and a sensing electrode disposed on the first substrate and having an opening; a second substrate disposed opposite the first substrate; and a display medium disposed between the first substrate and the second substrate, wherein the sensing electrode is disposed corresponding to at least two of the plurality of sub-pixels, and the opening is disposed corresponding to one of the plurality of scan lines or one of the plurality of data lines.
    Type: Application
    Filed: May 20, 2016
    Publication date: December 8, 2016
    Inventors: Chu-Hung TSAI, Hung-Kun CHEN, Li-Wei SUNG, Tung-Kai LIU, Chia-Hao TSAI, Chih-Hao CHANG, Bo-Feng CHEN