Patents by Inventor Tsu-Chiang Chang

Tsu-Chiang Chang 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: 20220066522
    Abstract: Embodiments of the present disclosure provide a flexible display panel and a display apparatus, and relate to the field of flexible display technologies. The flexible display panel includes a bent region, the bent region includes a trace layer, and the trace layer is provided with a wire. The wire includes a first bent part and a second bent part adjacent to the first bent part in an extension direction of a bending parallel line, and the second bent part and the first bent part are located on different bending parallel lines, where the bending parallel lines are parallel to a bending axis of the bent region. The flexible display panel can improve bending resistance of the wire, reduce a risk of wire fracture during bending of the bent region, ensure a signal transmission effect, and effectively alleviate the problem of poor display.
    Type: Application
    Filed: August 26, 2021
    Publication date: March 3, 2022
    Inventors: Weihua JIA, Tsu Chiang Chang, Changming Qiu
  • Patent number: 11127669
    Abstract: A flexible display screen and a flexible device are provided by the present application. The flexible display screen includes a bending area. The bending area includes at least one wiring layer. The at least one wiring layer includes a plurality of conducting wires arranged at intervals. Each of the plurality of conducting wires includes at least two current paths. The at least two current paths are configured to transmit an identical current signal passing through corresponding conducting wire. Since each of the plurality of conducting wires has at least two current paths, the plurality of conducting wires can continue to provide an electrical current when the plurality of conducting wires are damaged during bending. Therefore, the flexible display screen has strong stability and long service life.
    Type: Grant
    Filed: June 29, 2020
    Date of Patent: September 21, 2021
    Assignee: SHENZHEN ROYOLE TECHNOLOGIES CO.
    Inventors: Tsu Chiang Chang, Chang Ming Chiu, Yuning Wang
  • Publication number: 20210257439
    Abstract: A metal layer and a display panel are provided. The metal layer includes a first frame strip, a second frame strip, and a wiring portion between the first and second frame strips. An input portion is disposed on the first frame strip. The wiring portion includes a first wiring group, a second wiring group, and a third wiring group. The second frame strip includes a first, a second and a third connecting portion. The first wiring group is connected between the first frame strip and the first connecting portion, the second wiring group is connected between the first frame strip and the second connecting portion, and the third wiring group is connected between the first frame strip and the third connecting portion. The first connecting portion is connected to the third connecting portion, and the second connecting portion is spaced apart from the first and third connecting portions.
    Type: Application
    Filed: May 3, 2021
    Publication date: August 19, 2021
    Inventors: Huanda Wu, Tsu Chiang Chang
  • Publication number: 20200328145
    Abstract: A flexible display screen and a flexible device are provided by the present application. The flexible display screen includes a bending area. The bending area includes at least one wiring layer. The at least one wiring layer includes a plurality of conducting wires arranged at intervals. Each of the plurality of conducting wires includes at least two current paths. The at least two current paths are configured to transmit an identical current signal passing through corresponding conducting wire. Since each of the plurality of conducting wires has at least two current paths, the plurality of conducting wires can continue to provide an electrical current when the plurality of conducting wires are damaged during bending. Therefore, the flexible display screen has strong stability and long service life.
    Type: Application
    Filed: June 29, 2020
    Publication date: October 15, 2020
    Inventors: Tsu Chiang CHANG, Chang Ming CHIU, Yuning WANG
  • Patent number: 10418435
    Abstract: A pixel structure including a substrate, a power wire, a planarization layer, a drive circuit and a conductive structure is provided. The substrate has a layout area and a light-transmitting area located outside the layout area. The power wire is disposed on the layout area of the substrate. The power wire includes a shielding layer. The planarization layer is disposed on the substrate and covers the power wire. The drive circuit is disposed on the planarization layer and corresponds to the layout area. The drive circuit includes a first active device. The shielding layer overlaps with the first active device. The conductive structure is disposed in the planarization layer and distributed corresponding to the layout area. The power wire is electrically connected with the drive circuit through the conductive structure. A display panel is also provided.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: September 17, 2019
    Assignees: Industrial Technology Research Institute, Intellectual Property Innovation Corporation
    Inventors: Tai-Jui Wang, Chieh-Wei Feng, Meng-Jung Yang, Wei-Han Chen, Shao-An Yan, Tsu-Chiang Chang
  • Publication number: 20190013378
    Abstract: A pixel structure including a substrate, a power wire, a planarization layer, a drive circuit and a conductive structure is provided. The substrate has a layout area and a light-transmitting area located outside the layout area. The power wire is disposed on the layout area of the substrate. The power wire includes a shielding layer. The planarization layer is disposed on the substrate and covers the power wire. The drive circuit is disposed on the planarization layer and corresponds to the layout area. The drive circuit includes a first active device. The shielding layer overlaps with the first active device. The conductive structure is disposed in the planarization layer and distributed corresponding to the layout area. The power wire is electrically connected with the drive circuit through the conductive structure. A display panel is also provided.
    Type: Application
    Filed: August 31, 2017
    Publication date: January 10, 2019
    Applicants: Industrial Technology Research Institute, Intellectual Property Innovation Corporation
    Inventors: Tai-Jui Wang, Chieh-Wei Feng, Meng-Jung Yang, Wei-Han Chen, Shao-An Yan, Tsu-Chiang Chang
  • Patent number: 10083989
    Abstract: A semiconductor device is provided to include a flexible substrate, a barrier layer, a heat insulating layer, a device layer, a dielectric material later and a stress absorbing layer. The barrier layer is disposed on the flexible substrate. The heat insulating layer is disposed on the barrier layer, wherein the heat insulating layer has a thermal conductivity of less than 20 W/mK. The device layer is disposed on the heat insulating layer. The dielectric material layer is disposed on the device layer, and the dielectric material layer and the heat insulating layer include at least one trench. The stress absorbing layer is disposed on the dielectric material layer, and the stress absorbing layer fills into the at least one trench.
    Type: Grant
    Filed: July 14, 2016
    Date of Patent: September 25, 2018
    Assignee: Industrial Technology Research Institute
    Inventors: Tai-Jui Wang, Tsu-Chiang Chang, Yu-Hua Chung, Wei-Han Chen, Hsiao-Chiang Yao
  • Patent number: 9960245
    Abstract: A transistor device including a semiconductor material layer, a gate layer, and an insulation layer between the gate layer and the semiconductor material layer is provided. The semiconductor material layer includes a first conductive portion, a second conductive portion, a channel portion between the first conductive portion and the second conductive portion, and a first protruding portion formed integrally. The channel portion has a first boundary adjacent to the first conductive portion, a second boundary adjacent to the second conductive portion, a third boundary, and a fourth boundary. The third boundary and the fourth boundary connect the terminals of the first boundary and the second boundary. The first protruding portion is protruded outwardly from the third boundary of the channel portion. The first gate boundary and the second gate boundary are overlapped with the first boundary and the second boundary of the channel portion.
    Type: Grant
    Filed: March 15, 2017
    Date of Patent: May 1, 2018
    Assignee: Industrial Technology Research Institute
    Inventors: Tai-Jui Wang, Tsu-Chiang Chang, Chieh-Wei Feng, Shao-An Yan, Wei-Han Chen
  • Patent number: 9830030
    Abstract: A touch control device comprises a flexible touch panel, a sensor and a controller. The flexible touch panel receives a touch input. The sensor detects a bending of the flexible touch panel. The controller drives the flexible touch panel with a load drive capability setting and adjusts the load drive capability setting according to the bending of the flexible touch panel.
    Type: Grant
    Filed: May 7, 2015
    Date of Patent: November 28, 2017
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Tsu-Chiang Chang, Chien-Ju Lee, Kai-Ming Chang, Heng-Yin Chen, Yu-Sheng Tsai
  • Patent number: 9786790
    Abstract: In one embodiment, a flexible device is provided. The flexible device may include a flexible substrate, a buffer layer, a light reflective layer, and a device layer. The buffer layer is located on the flexible substrate. The light reflective layer is located on the flexible substrate, wherein the light reflective layer has a reflection wavelength of 200 nm˜1100 nm, a reflection ratio of greater than 80%, and a stress direction of the light reflective layer is the same as a stress direction of the flexible substrate. The device layer is located on the light reflective layer and the buffer layer.
    Type: Grant
    Filed: March 7, 2016
    Date of Patent: October 10, 2017
    Assignee: Industrial Technology Research Institute
    Inventors: Ching-Wen Su, Tai-Jui Wang, Hsiao-Chiang Yao, Tsu-Chiang Chang, Bo-Yuan Su
  • Publication number: 20170186367
    Abstract: A pixel array structure including a bottom carrier plate, a wire layer, a planarization layer, a pixel unit layer and a conductor structure is provided. The wire layer is disposed on the bottom carrier plate. The planarization layer covers the wire layer and has a flat surface at a side away from the wire layer. The pixel unit layer is disposed on the flat surface of the planarization layer. The pixel unit layer includes a pixel unit including a driving circuit structure and a pixel electrode electrically connected to the driving circuit structure. The conductor structure passes through the planarization layer and is connected between the driving circuit structure and the wire layer. A display panel having the pixel array structure and a method of fabricating the pixel array structure are also provided.
    Type: Application
    Filed: December 30, 2015
    Publication date: June 29, 2017
    Inventors: Yu-Hua Jhong, Tsu-Chiang Chang, Tai-Jui Wang
  • Publication number: 20170170207
    Abstract: A semiconductor device is provided to include a flexible substrate, a barrier layer, a heat insulating layer, a device layer, a dielectric material later and a stress absorbing layer. The barrier layer is disposed on the flexible substrate. The heat insulating layer is disposed on the barrier layer, wherein the heat insulating layer has a thermal conductivity of less than 20 W/mK. The device layer is disposed on the heat insulating layer. The dielectric material layer is disposed on the device layer, and the dielectric material layer and the heat insulating layer include at least one trench. The stress absorbing layer is disposed on the dielectric material layer, and the stress absorbing layer fills into the at least one trench.
    Type: Application
    Filed: July 14, 2016
    Publication date: June 15, 2017
    Inventors: Tai-Jui Wang, Tsu-Chiang Chang, Yu-Hua Chung, Wei-Han Chen, Hsiao-Chiang Yao
  • Publication number: 20170170329
    Abstract: In one embodiment, a flexible device is provided. The flexible device may include a flexible substrate, a buffer layer, a light reflective layer, and a device layer. The buffer layer is located on the flexible substrate. The light reflective layer is located on the flexible substrate, wherein the light reflective layer has a reflection wavelength of 200 nm˜1100 nm, a reflection ratio of greater than 80%, and a stress direction of the light reflective layer is the same as a stress direction of the flexible substrate. The device layer is located on the light reflective layer and the buffer layer.
    Type: Application
    Filed: March 7, 2016
    Publication date: June 15, 2017
    Inventors: Ching-Wen Su, Tai-Jui Wang, Hsiao-Chiang Yao, Tsu-Chiang Chang, Bo-Yuan Su
  • Publication number: 20160328042
    Abstract: A touch control device comprises a flexible touch panel, a sensor and a controller. The flexible touch panel receives a touch input The sensor detects a bending of the flexible touch panel. The controller drives the flexible touch panel with a load drive capability setting and adjusts the load drive capability setting according to the bending of the flexible touch panel.
    Type: Application
    Filed: May 7, 2015
    Publication date: November 10, 2016
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Tsu-Chiang Chang, Chien-Ju Lee, Kai-Ming Chang, Heng-Yin Chen, Yu-Sheng Tsai
  • Patent number: 8854566
    Abstract: The present invention provides a method for forming a pixel element. The method comprises: forming a first patterned metal layer within the pixel area; forming an insulation layer on the first patterned metal layer; forming a semiconductor layer on the insulation layer; patterning the semiconductor layer to form bend seed generation portion; and forming a second metal layer to connect the semiconductor layer.
    Type: Grant
    Filed: January 19, 2012
    Date of Patent: October 7, 2014
    Assignee: Hannstar Display Corp.
    Inventors: Tsu-Chiang Chang, Po-Yang Chen, Chao-Hui Wu, Po-Sheng Shih
  • Patent number: 8791928
    Abstract: The present invention provides a pixel driving method for a liquid crystal display. The pixel includes a storage capacitor and a liquid crystal capacitor. The pixel driving method includes steps of: providing a common voltage signal to a liquid crystal capacitor, and providing a bias signal to a storage capacitor wherein the bias signal is synchronized with the common voltage signal and the amplitude of the bias signal is larger than that of the common voltage signal.
    Type: Grant
    Filed: November 6, 2007
    Date of Patent: July 29, 2014
    Assignee: Hannstar Display Corp.
    Inventors: Po-Yang Chen, Po-Sheng Shih, Tsu-Chiang Chang
  • Patent number: 8581814
    Abstract: A method for driving pixels of a display panel is provided. The display panel includes a first gate line coupled to a gate of a first-switch transistor, wherein a source of the first-switch transistor is coupled to a liquid crystal capacitor and a first-storage capacitor. The liquid crystal capacitor includes a pixel electrode and a common electrode. A terminal of the first-storage capacitor is coupled to a second gate line. First, a first modulation signal is provided to the common electrode. Next, the first-switch transistor is turned on by the first gate line. Next, a second modulation signal is provided to the second gate line after the first-switch transistor is turned on. Wherein, the second modulation signal enables a second-switch transistor coupled to the second gate line to operate in the cut-off region. And the first and second modulation signals are in phase.
    Type: Grant
    Filed: June 25, 2008
    Date of Patent: November 12, 2013
    Assignee: Hannstar Display Corporation
    Inventors: Po-Yang Chen, Po-Sheng Shih, Tsu-Chiang Chang
  • Patent number: 8542328
    Abstract: A pixel structure of a liquid crystal display panel includes a substrate, a first metallic layer, a light shielding element, a second metallic layer and a pixel electrode. The first metallic layer and the light shielding element are disposed above the substrate. The second metallic layer is disposed above the light shielding element, and includes first and second data lines. The first data line is disposed along the light shielding element, and is partially overlapped with the light shielding element. The second data line is parallel to the first data line. A first portion of the pixel electrode is overlapped with the first data line, and is not overlapped with the light shielding element. A second portion of the pixel electrode is overlapped with the light shielding element, and is not overlapped with the first data line.
    Type: Grant
    Filed: March 24, 2010
    Date of Patent: September 24, 2013
    Assignee: Hannstar Display Corp.
    Inventors: Tsu Chiang Chang, Chao Hui Wu
  • Patent number: 8264629
    Abstract: The present invention provides a method for forming a pixel element. The method comprises: forming a first patterned metal layer within the pixel area; forming an insulation layer on the first patterned metal layer; forming a semiconductor layer on the insulation layer; patterning the semiconductor layer to form bend seed generation portion; and forming a second metal layer to connect the semiconductor layer.
    Type: Grant
    Filed: October 16, 2009
    Date of Patent: September 11, 2012
    Assignee: Hannstar Display Corp.
    Inventors: Tsu-Chiang Chang, Po-Yang Chen, Chao-Hui Wu, Po-Sheng Shih
  • Publication number: 20120115264
    Abstract: The present invention provides a method for forming a pixel element. The method comprises: forming a first patterned metal layer within the pixel area; forming an insulation layer on the first patterned metal layer; forming a semiconductor layer on the insulation layer; patterning the semiconductor layer to form bend seed generation portion; and forming a second metal layer to connect the semiconductor layer.
    Type: Application
    Filed: January 19, 2012
    Publication date: May 10, 2012
    Inventors: Tsu-Chiang Chang, Po-Yang Chen, Chao-Hui Wu, Po-Sheng Shih