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).
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Publication number: 20220066522Abstract: 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: ApplicationFiled: August 26, 2021Publication date: March 3, 2022Inventors: Weihua JIA, Tsu Chiang Chang, Changming Qiu
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Patent number: 11127669Abstract: 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: GrantFiled: June 29, 2020Date of Patent: September 21, 2021Assignee: SHENZHEN ROYOLE TECHNOLOGIES CO.Inventors: Tsu Chiang Chang, Chang Ming Chiu, Yuning Wang
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Publication number: 20210257439Abstract: 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: ApplicationFiled: May 3, 2021Publication date: August 19, 2021Inventors: Huanda Wu, Tsu Chiang Chang
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Publication number: 20200328145Abstract: 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: ApplicationFiled: June 29, 2020Publication date: October 15, 2020Inventors: Tsu Chiang CHANG, Chang Ming CHIU, Yuning WANG
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Patent number: 10418435Abstract: 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: GrantFiled: August 31, 2017Date of Patent: September 17, 2019Assignees: Industrial Technology Research Institute, Intellectual Property Innovation CorporationInventors: Tai-Jui Wang, Chieh-Wei Feng, Meng-Jung Yang, Wei-Han Chen, Shao-An Yan, Tsu-Chiang Chang
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Publication number: 20190013378Abstract: 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: ApplicationFiled: August 31, 2017Publication date: January 10, 2019Applicants: Industrial Technology Research Institute, Intellectual Property Innovation CorporationInventors: Tai-Jui Wang, Chieh-Wei Feng, Meng-Jung Yang, Wei-Han Chen, Shao-An Yan, Tsu-Chiang Chang
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Patent number: 10083989Abstract: 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: GrantFiled: July 14, 2016Date of Patent: September 25, 2018Assignee: Industrial Technology Research InstituteInventors: Tai-Jui Wang, Tsu-Chiang Chang, Yu-Hua Chung, Wei-Han Chen, Hsiao-Chiang Yao
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Patent number: 9960245Abstract: 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: GrantFiled: March 15, 2017Date of Patent: May 1, 2018Assignee: Industrial Technology Research InstituteInventors: Tai-Jui Wang, Tsu-Chiang Chang, Chieh-Wei Feng, Shao-An Yan, Wei-Han Chen
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Patent number: 9830030Abstract: 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: GrantFiled: May 7, 2015Date of Patent: November 28, 2017Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Tsu-Chiang Chang, Chien-Ju Lee, Kai-Ming Chang, Heng-Yin Chen, Yu-Sheng Tsai
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Patent number: 9786790Abstract: 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: GrantFiled: March 7, 2016Date of Patent: October 10, 2017Assignee: Industrial Technology Research InstituteInventors: Ching-Wen Su, Tai-Jui Wang, Hsiao-Chiang Yao, Tsu-Chiang Chang, Bo-Yuan Su
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Publication number: 20170186367Abstract: 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: ApplicationFiled: December 30, 2015Publication date: June 29, 2017Inventors: Yu-Hua Jhong, Tsu-Chiang Chang, Tai-Jui Wang
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Publication number: 20170170207Abstract: 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: ApplicationFiled: July 14, 2016Publication date: June 15, 2017Inventors: Tai-Jui Wang, Tsu-Chiang Chang, Yu-Hua Chung, Wei-Han Chen, Hsiao-Chiang Yao
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Publication number: 20170170329Abstract: 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: ApplicationFiled: March 7, 2016Publication date: June 15, 2017Inventors: Ching-Wen Su, Tai-Jui Wang, Hsiao-Chiang Yao, Tsu-Chiang Chang, Bo-Yuan Su
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Publication number: 20160328042Abstract: 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: ApplicationFiled: May 7, 2015Publication date: November 10, 2016Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Tsu-Chiang Chang, Chien-Ju Lee, Kai-Ming Chang, Heng-Yin Chen, Yu-Sheng Tsai
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Patent number: 8854566Abstract: 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: GrantFiled: January 19, 2012Date of Patent: October 7, 2014Assignee: Hannstar Display Corp.Inventors: Tsu-Chiang Chang, Po-Yang Chen, Chao-Hui Wu, Po-Sheng Shih
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Patent number: 8791928Abstract: 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: GrantFiled: November 6, 2007Date of Patent: July 29, 2014Assignee: Hannstar Display Corp.Inventors: Po-Yang Chen, Po-Sheng Shih, Tsu-Chiang Chang
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Patent number: 8581814Abstract: 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: GrantFiled: June 25, 2008Date of Patent: November 12, 2013Assignee: Hannstar Display CorporationInventors: Po-Yang Chen, Po-Sheng Shih, Tsu-Chiang Chang
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Patent number: 8542328Abstract: 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: GrantFiled: March 24, 2010Date of Patent: September 24, 2013Assignee: Hannstar Display Corp.Inventors: Tsu Chiang Chang, Chao Hui Wu
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Patent number: 8264629Abstract: 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: GrantFiled: October 16, 2009Date of Patent: September 11, 2012Assignee: Hannstar Display Corp.Inventors: Tsu-Chiang Chang, Po-Yang Chen, Chao-Hui Wu, Po-Sheng Shih
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Publication number: 20120115264Abstract: 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: ApplicationFiled: January 19, 2012Publication date: May 10, 2012Inventors: Tsu-Chiang Chang, Po-Yang Chen, Chao-Hui Wu, Po-Sheng Shih