Patents by Inventor Yang-Hui Chang
Yang-Hui 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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Patent number: 9280236Abstract: A display driving circuit with photo detecting input includes pixel regions, pixel electrodes, gate lines, data lines, at least one photo detecting unit and at least one readout line. The gate lines cross the data lines. The data lines include a first data line and a second data line disposed adjacently to each other. There is no data line disposed between the first data line and the second data line. The photo detecting unit is electrically connected to one of the gate lines. The readout line is electrically connected to the photo detecting unit and disposed between the first data line and the second data line. A first spacing between first data line and the readout line is wider than or equal to a second spacing between the second data line and the readout line, and the first spacing is smaller than or equal to triple the second spacing.Type: GrantFiled: November 20, 2013Date of Patent: March 8, 2016Assignee: Integrated Digital Technologies, Inc.Inventors: Naejye Hwang, Shen-Tai Liaw, Yang-Hui Chang
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Patent number: 9201544Abstract: A display driving circuit with photo detecting input includes pixel regions, pixel electrodes, gate lines, data lines, at least one photo detecting unit, at least one readout line and at least one isolation electrode. The pixel regions are aligned in a matrix configuration. The pixel electrodes are disposed in the pixel region respectively. Each of the gate lines extends along a first direction and the gate lines are disposed parallel to one another. Each of the data lines extends along a second direction and the data lines are disposed parallel to one another. The gate lines cross the data lines. The photo detecting unit is at least partially disposed in one of the pixel region and electrically connected to the readout line. The readout line is disposed between two adjacent data lines. The isolation electrode is disposed between the readout line and one of the data lines.Type: GrantFiled: November 20, 2013Date of Patent: December 1, 2015Assignee: Integrated Digital Technologies, Inc.Inventors: Naejye Hwang, Shen-Tai Liaw, Yang-Hui Chang
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Patent number: 8911113Abstract: A laser pointer suitable for a touch display panel is provided. The laser pointer includes a main body, a laser diode and a wave plate. The main body has a containing space. The laser diode is disposed in the containing space and has a light emitting end. The wave plate is disposed on the light emitting end, wherein the laser diode is suitable for emitting a laser beam having linear polarization from the light emitting end, and the wave plate is suitable for transforming the laser beam having linear polarization into a laser beam having circular polarization, such that the laser beam is suitable for being an input signal for the touch display panel.Type: GrantFiled: April 27, 2011Date of Patent: December 16, 2014Assignee: Intergrated Digital Technologies, Inc.Inventors: Yang-Hui Chang, Shen-Tai Liaw, Nae-Jye Hwang
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Patent number: 8902135Abstract: A pixel structure of an organic electroluminescence device includes a scan line, and a data line, a bias line and a readout line on a substrate, a first switch device, a capacitor, a driving device, an organic light emitting device, a second switch device and a photo sensor device. The first switch device is electrically connected to the scan line and the data line. The capacitor is electrically connected to the first switch device and the bias line. The driving device is electrically connected to the first switch device, the capacitor and the bias line. The organic light emitting device is electrically connected to the driving device. The second switch device is electrically connected to the scan line and the readout line. The photo sensor device is electrically connected to the second switch device and the bias line.Type: GrantFiled: February 4, 2012Date of Patent: December 2, 2014Assignee: Integrated Digital Technologies, Inc.Inventors: Yang-Hui Chang, Nae-Jye Hwang, Shen-Tai Liaw
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Publication number: 20140139490Abstract: A display driving circuit with photo detecting input includes pixel regions, pixel electrodes, gate lines, data lines, at least one photo detecting unit and at least one readout line. The gate lines cross the data lines. The data lines include a first data line and a second data line disposed adjacently to each other. There is no data line disposed between the first data line and the second data line. The photo detecting unit is electrically connected to one of the gate lines. The readout line is electrically connected to the photo detecting unit and disposed between the first data line and the second data line. A first spacing between first data line and the readout line is wider than or equal to a second spacing between the second data line and the readout line, and the first spacing is smaller than or equal to triple the second spacing.Type: ApplicationFiled: November 20, 2013Publication date: May 22, 2014Applicant: Integrated Digital Technologies, Inc.Inventors: Naejye Hwang, Shen-Tai Liaw, Yang-Hui Chang
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Publication number: 20140139489Abstract: A display driving circuit with photo detecting input includes pixel regions, pixel electrodes, gate lines, data lines, at least one photo detecting unit, at least one readout line and at least one isolation electrode. The pixel regions are aligned in a matrix configuration. The pixel electrodes are disposed in the pixel region respectively. Each of the gate lines extends along a first direction and the gate lines are disposed parallel to one another. Each of the data lines extends along a second direction and the data lines are disposed parallel to one another. The gate lines cross the data lines. The photo detecting unit is at least partially disposed in one of the pixel region and electrically connected to the readout line. The readout line is disposed between two adjacent data lines. The isolation electrode is disposed between the readout line and one of the data lines.Type: ApplicationFiled: November 20, 2013Publication date: May 22, 2014Applicant: Integrated Digital Technologies, Inc.Inventors: Naejye Hwang, Shen-Tai Liaw, Yang-Hui Chang
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Publication number: 20140061651Abstract: An electrophoretic display device includes a photosensitive transistor in a thin-film-transistor layer that may be used to receive an optical signal as input control signal. The thin-film-transistor layer also includes an electrical switch element for driving an electrophoretic layer to display content. A switching transistor may also be included in the thin-film-transistor layer for selectively turning on the photosensitive transistor. By incorporating the photosensitive transistor and the switching transistor into the existing thin-film-transistor layer of an active matrix electrophoretic display device, optical sensing touch control is made applicable in the electrophoretic display device without compromising its advantageous light, flexible, thin features.Type: ApplicationFiled: August 28, 2012Publication date: March 6, 2014Inventors: Yang-Hui Chang, Naejye Hwang, Shen-Tai Liaw
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Patent number: 8575536Abstract: A pixel array including a plurality of pixel structures is provided. At least one of the pixel structures has a scan line, a data line, an active device, a pixel electrode, a readout line, an electro-magnetic interference (EMI) shielding layer and a sensing device. The scan line and the data line are disposed on a substrate. The active device is electrically connected to the scan line and the data line. The pixel electrode is electrically connected to the active device. The readout line is disposed above or below a data line. The EMI shielding layer covers the data line, and is between the readout line and the data line. The sensing device is electrically connected to the scan line and the readout line.Type: GrantFiled: November 26, 2010Date of Patent: November 5, 2013Assignee: Integrated Digital Technologies Inc.Inventors: Yang-Hui Chang, Shen-Tai Liaw, Sen-Shyong Fann
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Patent number: 8537149Abstract: A pixel array having a plurality of pixel structures is provided. At least one of the pixel structures includes a scan line, a data line, an active device, a pixel electrode, a capacitor electrode line, a readout line and a sensing device. The scan line and the data line are disposed on a substrate. The active device is electrically connected to the scan line and the data line. The pixel electrode is electrically connected to the active device. The capacitor electrode line electrically couples with the pixel electrode. The readout line is disposed parallel to the data line. The sensing device is electrically connected to the scan line and the readout line, and the sensing device is connected to an adjacent capacitor electrode line.Type: GrantFiled: December 29, 2010Date of Patent: September 17, 2013Assignee: Integrated Digital Technologies, Inc.Inventors: Sen-Shyong Fann, Yang-Hui Chang, Shen-Tai Liaw, Nae-Jye Hwang
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Publication number: 20130201085Abstract: A pixel structure of an organic electroluminescence device includes a scan line, and a data line, a bias line and a readout line on a substrate, a first switch device, a capacitor, a driving device, an organic light emitting device, a second switch device and a photo sensor device. The first switch device is electrically connected to the scan line and the data line. The capacitor is electrically connected to the first switch device and the bias line. The driving device is electrically connected to the first switch device, the capacitor and the bias line. The organic light emitting device is electrically connected to the driving device. The second switch device is electrically connected to the scan line and the readout line. The photo sensor device is electrically connected to the second switch device and the bias line.Type: ApplicationFiled: February 4, 2012Publication date: August 8, 2013Inventors: Yang-Hui Chang, Nae-Jye Hwang, Shen-Tai Liaw
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Patent number: 8441591Abstract: A pixel array substrate includes a pixel region and a circuit region adjacent to the pixel region. A plurality of display pixel units are disposed in the pixel region and a plurality of dummy pixel units are disposed in the circuit region. Each of the dummy pixel units includes a data line, a scan line, a plurality of switching elements and a plurality of pixel electrodes. The switching elements are electrically connected to the scan line and data line. The pixel electrodes are electrically connected to the switching elements. Particularly, electrostatic currents in the pixel region can be dissipated by the dummy pixel units in the circuit region. The dummy pixel units preserve the continuity of electricity in the pixel array substrate and function as an inner short ring. Therefore, the area of the circuit region on the pixel array substrate is larger.Type: GrantFiled: October 28, 2012Date of Patent: May 14, 2013Assignee: Chunghwa Picture Tubes, Ltd.Inventors: Liang-Hao Kang, Yang-Hui Chang
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Patent number: 8411218Abstract: A pixel array substrate includes a pixel region and a circuit region adjacent to the pixel region. A plurality of display pixel units are disposed in the pixel region and a plurality of dummy pixel units are disposed in the circuit region. Each of the dummy pixel units includes a data line, a scan line, a plurality of switching elements and a plurality of pixel electrodes. The switching elements are electrically connected to the scan line and data line. The pixel electrodes are electrically connected to the switching elements. Particularly, electrostatic currents in the pixel region can be dissipated by the dummy pixel units in the circuit region. The dummy pixel units preserve the continuity of electricity in the pixel array substrate and function as an inner short ring. Therefore, the area of the circuit region on the pixel array substrate is larger.Type: GrantFiled: October 29, 2012Date of Patent: April 2, 2013Assignee: Chunghwa Picture Tubes, Ltd.Inventors: Liang-Hao Kang, Yang-Hui Chang
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Patent number: 8400575Abstract: A pixel array substrate includes a pixel region and a circuit region adjacent to the pixel region. A plurality of display pixel units are disposed in the pixel region and a plurality of dummy pixel units are disposed in the circuit region. Each of the dummy pixel units includes a data line, a scan line, a plurality of switching elements and a plurality of pixel electrodes. The switching elements are electrically connected to the scan line and data line. The pixel electrodes are electrically connected to the switching elements. Particularly, electrostatic currents in the pixel region can be dissipated by the dummy pixel units in the circuit region. The dummy pixel units preserve the continuity of electricity in the pixel array substrate and function as an inner short ring. Therefore, the area of the circuit region on the pixel array substrate is larger.Type: GrantFiled: October 29, 2012Date of Patent: March 19, 2013Assignee: Chunghwa Picture Tubes, Ltd.Inventors: Liang-Hao Kang, Yang-Hui Chang
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Patent number: 8330884Abstract: A pixel array substrate includes a pixel region and a circuit region adjacent to the pixel region. A plurality of display pixel units are disposed in the pixel region and a plurality of dummy pixel units are disposed in the circuit region. Each of the dummy pixel units includes a data line, a scan line, a plurality of switching elements and a plurality of pixel electrodes. The switching elements are electrically connected to the scan line and data line. The pixel electrodes are electrically connected to the switching elements. Particularly, electrostatic currents in the pixel region can be dissipated by the dummy pixel units in the circuit region. The dummy pixel units preserve the continuity of electricity in the pixel array substrate and function as an inner short ring. Therefore, the area of the circuit region on the pixel array substrate is larger.Type: GrantFiled: January 12, 2009Date of Patent: December 11, 2012Assignee: Chunghwa Picture Tubes, Ltd.Inventors: Liang-hao Kang, Yang-Hui Chang
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Publication number: 20120275133Abstract: A laser pointer suitable for a touch display panel is provided. The laser pointer includes a main body, a laser diode and a wave plate. The main body has a containing space. The laser diode is disposed in the containing space and has a light emitting end. The wave plate is disposed on the light emitting end, wherein the laser diode is suitable for emitting a laser beam having linear polarization from the light emitting end, and the wave plate is suitable for transforming the laser beam having linear polarization into a laser beam having circular polarization, such that the laser beam is suitable for being an input signal for the touch display panel.Type: ApplicationFiled: April 27, 2011Publication date: November 1, 2012Applicant: INTEGRATED DIGITAL TECHNOLOGIES, INC.Inventors: Yang-Hui Chang, Shen-Tai Liaw, Nae-Jye Hwang
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Publication number: 20110153284Abstract: A design method for integrating an embedded device into a liquid crystal panel is disclosed, including providing an adjustable backlight spectrum range, and determining an area ratio of sub pixels occupied by an embedded element and a readout line in a touch panel according to the adjustable backlight spectrum range.Type: ApplicationFiled: December 7, 2010Publication date: June 23, 2011Inventors: Heng-Hsien Li, Ming-Tsung Wang, Yang-Hui Chang, Shen-Tai Liaw, Naejye Hwang
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Publication number: 20110096026Abstract: A pixel array having a plurality of pixel structures is provided. At least one of the pixel structures includes a scan line, a data line, an active device, a pixel electrode, a capacitor electrode line, a readout line and a sensing device. The scan line and the data line are disposed on a substrate. The active device is electrically connected to the scan line and the data line. The pixel electrode is electrically connected to the active device. The capacitor electrode line electrically couples with the pixel electrode. The readout line is disposed parallel to the data line. The sensing device is electrically connected to the scan line and the readout line, and the sensing device is connected to an adjacent capacitor electrode line.Type: ApplicationFiled: December 29, 2010Publication date: April 28, 2011Inventors: Sen-Shyong Fann, Yang-Hui Chang, Shen-Tai Liaw, Nae-Jye Hwang
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Publication number: 20110090194Abstract: A pixel array including a plurality of pixel structures is provided. At least one of the pixel structures has a scan line, a data line, an active device, a pixel electrode, a readout line, an electro-magnetic interference (EMI) shielding layer and a sensing device. The scan line and the data line are disposed on a substrate. The active device is electrically connected to the scan line and the data line. The pixel electrode is electrically connected to the active device. The readout line is disposed above or below a data line. The EMI shielding layer covers the data line, and is between the readout line and the data line. The sensing device is electrically connected to the scan line and the readout line.Type: ApplicationFiled: November 26, 2010Publication date: April 21, 2011Inventors: Yang-Hui Chang, Shen-Tai Liaw, Sen-Shyong Fann
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Patent number: 7773164Abstract: An active device array substrate including a substrate, a plurality of pixel units, a plurality of driving lines, a plurality of common lines, an electrostatic discharge (ESD) protection circuit, and a plurality of switch elements is provided. The substrate has a display region and a peripheral region adjacent to the display region. The pixel units are arranged as an array in the display region of the substrate. The driving lines are disposed in the display region and the peripheral region and are electrically connected to the pixel units. The common lines are disposed in the display region and are extended into the peripheral region. The ESD protection circuit is disposed in the peripheral region of the substrate. The switch elements are disposed in the peripheral region, wherein each of the switch elements is electrically connected between one of the common lines and the ESD protection circuit.Type: GrantFiled: December 27, 2007Date of Patent: August 10, 2010Assignee: Chunghwa Picture Tubes, Ltd.Inventor: Yang-Hui Chang
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Publication number: 20100053489Abstract: A pixel array substrate includes a pixel region and a circuit region adjacent to the pixel region. A plurality of display pixel units are disposed in the pixel region and a plurality of dummy pixel units are disposed in the circuit region. Each of the dummy pixel units includes a data line, a scan line, a plurality of switching elements and a plurality of pixel electrodes. The switching elements are electrically connected to the scan line and data line. The pixel electrodes are electrically connected to the switching elements. Particularly, electrostatic currents in the pixel region can be dissipated by the dummy pixel units in the circuit region. The dummy pixel units preserve the continuity of electricity in the pixel array substrate and function as an inner short ring. Therefore, the area of the circuit region on the pixel array substrate is larger.Type: ApplicationFiled: January 12, 2009Publication date: March 4, 2010Applicant: CHUNGHWA PICTURE TUBES, LTD.Inventors: Liang-hao Kang, Yang-Hui Chang