Patents by Inventor Cheng-Chieh Chang

Cheng-Chieh 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: 20180158847
    Abstract: A light emitting diode (LED) display includes a substrate, a pixel define layer, at least one first color micro LED, and at least one second color micro LED. The pixel define layer is disposed on the substrate and has a first opening and a second opening separated from each other. Contours of the first and second openings on a surface of the pixel define layer facing away from the substrate respectively define areas which are the same as each other. The first color micro LED is disposed in the first opening and has a first vertical projection projected on the substrate. The second color micro LED is disposed in the second opening and has a second vertical projection projected on the substrate. An area of the first vertical projection is different from an area of the second vertical projection.
    Type: Application
    Filed: January 30, 2018
    Publication date: June 7, 2018
    Inventors: Cheng-Chieh CHANG, Tsung-Tien WU, Kang-Hung LIU, Hsiang-Yun HSIAO
  • Publication number: 20180047865
    Abstract: A micro-light-emitting diode device includes a first semiconductor layer, an active layer, and a second semiconductor layer. The first semiconductor layer has a first bottom surface. The active layer is disposed on the first semiconductor layer. The second semiconductor layer is disposed on the active layer. The second semiconductor layer and the active layer have an interface. A surface of the second semiconductor layer opposite to the active layer is a light-exiting surface of the micro-light-emitting diode device. A distance between the light-exiting surface and the interface decreases from a central axis of the second semiconductor layer to an edge of the second semiconductor layer, so as to provide a focusing effect for the light by the light-exiting surface.
    Type: Application
    Filed: October 19, 2017
    Publication date: February 15, 2018
    Inventors: Tsung-Yi LIN, Cheng-Chieh CHANG
  • Patent number: 9825200
    Abstract: A micro-light-emitting diode (micro-LED) device includes a first semiconductor layer, an active layer, and a second semiconductor layer. The first semiconductor layer includes a first bottom surface. The active layer is disposed on the first semiconductor layer. The second semiconductor layer disposed on the active layer includes a second bottom surface. A surface of the second semiconductor layer opposite to the active layer is a light-exiting surface of the micro-LED device. The second semiconductor layer has different thicknesses, in which a minimum thickness of the second semiconductor layer is located at an edge or at least one side of the second semiconductor layer. Vertical-projection zones of the first semiconductor layer, the active layer, and the second semiconductor layer on the first bottom surface are substantially the same.
    Type: Grant
    Filed: March 4, 2016
    Date of Patent: November 21, 2017
    Assignee: AU OPTRONICS CORPORATION
    Inventors: Tsung-Yi Lin, Cheng-Chieh Chang
  • Publication number: 20170309678
    Abstract: A micro light emitting diode structure includes a light emitting stacking layer, an insulating layer, a first electrode and a second electrode. The light emitting stacking layer includes a truncated quadrangular pyramid, wherein the truncated quadrangular pyramid includes a first sidewall, a second sidewall, a third sidewall and a fourth sidewall, and a top portion of the truncated quadrangular pyramid has a recess. The insulating layer covers the first sidewall, the third sidewall and a part of the top portion of the light emitting stacking layer. The first electrode covers the first sidewall of the light emitting stacking layer, a part of the insulating layer on the top portion, and the bottom surface of the recess. The second electrode covers the third sidewall of the light emitting stacking layer, and another part of the insulating layer on the top portion and contacts the light emitting stacking layer through an opening of the insulating layer.
    Type: Application
    Filed: January 18, 2017
    Publication date: October 26, 2017
    Inventors: Wen-Wei YANG, Tsung-Tien WU, Cheng-Chieh CHANG
  • Publication number: 20170222108
    Abstract: A light emitting device includes a substrate, a light emitting chip, a first electrode, and a second electrode. The light emitting chip includes a first semiconductor layer and a second semiconductor layer. The first semiconductor layer is disposed on the substrate. The second semiconductor layer is stacked on the first semiconductor layer and forms a light emitting junction with the first semiconductor layer. The first electrode connects to the first semiconductor layer and is isolated from the second semiconductor layer. The second electrode connects to the second semiconductor layer and is isolated from the first electrode. The light emitting device may further include a transparent layer that is disposed on the substrate and surrounds and contacts the lateral of the light emitting chip. A refraction index of the transparent layer is between a refraction index of the light emitting chip and that of a vacuum.
    Type: Application
    Filed: January 12, 2017
    Publication date: August 3, 2017
    Inventors: Cheng-Chieh Chang, Tsung-Tien Wu, Wen-Wei Yang, Tsung-Yi Lin
  • Patent number: 9542054
    Abstract: A touch module and a manufacturing method thereof are disclosed. The touch module includes a substrate, at least two first touch electrodes, at least two second touch electrodes, at least one conductive residual material, at least one electrode channel, and at least one bridge. The substrate has a first surface and a second surface. The first surface and the second surface are opposite to each other. The conductive residual material is formed on the second surface of the substrate. All of the first touch electrodes, the second touch electrodes, and the electrode channel are embedded in the substrate. The electrode channel is configured to electrically connect the second touch electrodes to each other. The bridge is disposed on the first surface of the substrate, and configured to electrically connect the first touch electrodes to each other. The first touch electrodes are isolated from the second touch electrodes.
    Type: Grant
    Filed: May 26, 2015
    Date of Patent: January 10, 2017
    Assignee: TPK Touch Solutions Inc.
    Inventors: Chen-Yu Liu, Lu-Hsing Lee, Cheng-Chieh Chang, Huai-San Ku
  • Publication number: 20160372514
    Abstract: An LED display is provided in considering of both the human eye perception and inconsistent luminous efficiencies of LEDs in a red, blue, and green sub-pixels. A total area of a light-exiting surface of a red micro LED is larger than a total area of a light-exiting surface of a green micro LED so as to improve the problem that the sub-pixels of different colors have inconsistent luminous efficiencies.
    Type: Application
    Filed: May 19, 2016
    Publication date: December 22, 2016
    Inventors: Cheng-Chieh CHANG, Tsung-Tien WU, Kang-Hung LIU, Hsiang-Yun HSIAO
  • Publication number: 20160336486
    Abstract: A micro-light-emitting diode (micro-LED) device includes a first semiconductor layer, an active layer, and a second semiconductor layer. The first semiconductor layer includes a first bottom surface. The active layer is disposed on the first semiconductor layer. The second semiconductor layer disposed on the active layer includes a second bottom surface. A surface of the second semiconductor layer opposite to the active layer is a light-exiting surface of the micro-LED device. The second semiconductor layer has different thicknesses, in which a minimum thickness of the second semiconductor layer is located at an edge or at least one side of the second semiconductor layer. Vertical-projection zones of the first semiconductor layer, the active layer, and the second semiconductor layer on the first bottom surface are substantially the same.
    Type: Application
    Filed: March 4, 2016
    Publication date: November 17, 2016
    Inventors: Tsung-Yi LIN, Cheng-Chieh Chang
  • Publication number: 20160314731
    Abstract: A pixel structure includes a plurality of sub-pixels. Each of the sub-pixels includes a first light-emitting diode (LED) and a second LED. The first LED is configured to emit a first color light. The second LED is configured to emit a second color light. Each of the first LED and the second LED includes an anode and a cathode. The anode of the first LED and the anode of the second LED are coupled to a same signal line. The cathode of the first LED and the cathode of the second LED are coupled to different signal lines.
    Type: Application
    Filed: August 31, 2015
    Publication date: October 27, 2016
    Inventors: Tsung-Tien WU, Tsung-Yi LIN, Cheng-Chieh CHANG, Pin-Miao LIU, Kang-Hung LIU
  • Publication number: 20150346878
    Abstract: A touch module and a manufacturing method thereof are disclosed. The touch module includes a substrate, at least one bridge, an active layer, at least two first touch electrodes, at least two second touch electrodes, and at least one electrode channel. The bridge is disposed on the substrate. The active layer overlays the bridge and the substrate. The first touch electrodes are embedded in the active layer and electrically touch the bridge, so that the first touch electrodes are electrically connected to each other via the bridge. The electrode channel is embedded in the active layer, and is configured to allow the second touch electrodes to be electrically connected to each other. The first touch electrodes are electrically isolated from the second touch electrodes.
    Type: Application
    Filed: May 25, 2015
    Publication date: December 3, 2015
    Inventors: Chen-Yu Liu, Lu-Hsing Lee, Cheng-Chieh Chang, Huai-San Ku
  • Publication number: 20150346853
    Abstract: A touch module and a manufacturing method thereof are disclosed. The touch module includes a substrate, at least two first touch electrodes, at least two second touch electrodes, at least one conductive residual material, at least one electrode channel, and at least one bridge. The substrate has a first surface and a second surface. The first surface and the second surface are opposite to each other. The conductive residual material is formed on the second surface of the substrate. All of the first touch electrodes, the second touch electrodes, and the electrode channel are embedded in the substrate. The electrode channel is configured to electrically connect the second touch electrodes to each other. The bridge is disposed on the first surface of the substrate, and configured to electrically connect the first touch electrodes to each other. The first touch electrodes are isolated from the second touch electrodes.
    Type: Application
    Filed: May 26, 2015
    Publication date: December 3, 2015
    Inventors: Chen-Yu Liu, Lu-Hsing Lee, Cheng-Chieh Chang, Huai-San Ku
  • Patent number: 8963856
    Abstract: The present invention relates to a touch sensing layer which comprises at least one first-axis sensing electrode, second-axis sensing electrode, insulating element and conductive bridge. Each first-axis sensing electrode comprises a plurality of first electrode patterns with discontinuity-in-series, and each second-axis sensing electrode is configured to interlace with each first-axis sensing electrode and comprises a plurality of second electrode patterns with continuity-in-series. Each insulating element is continuously formed on the corresponding second-axis sensing electrode, and each conductive bridge is also continuously formed above the corresponding first-axis sensing electrode and crosses the insulating element to connect those first electrode patterns with discontinuity-in-series.
    Type: Grant
    Filed: February 2, 2012
    Date of Patent: February 24, 2015
    Assignee: TPK Touch Solutions Inc.
    Inventors: Chen-Yu Liu, Lu-Hsing Lee, Cheng-Chieh Chang, Ching-Shan Lin
  • Publication number: 20140054753
    Abstract: The present disclosure provides a nano-meshed patterned substrate and a method of forming the same. In an embodiment, a metal layer is formed on a substrate, and a heat treatment is performed on the substrate and the metal layer so that the metal layer is transformed into a nano-meshed metal structure. The substrate is then etched using the nano-meshed metal structure as an etch mask. After removing the nano-meshed metal structure, a nano-meshed patterned substrate is obtained.
    Type: Application
    Filed: July 16, 2013
    Publication date: February 27, 2014
    Inventors: Cheng-Yi LIU, Cheng-Chieh CHANG
  • Patent number: D701527
    Type: Grant
    Filed: February 23, 2012
    Date of Patent: March 25, 2014
    Assignee: HTC Corporation
    Inventors: David Brinda, Drew Bamford, Sheng-Hsin Huang, Jye Rong, Cheng-Chieh Chang
  • Patent number: D715814
    Type: Grant
    Filed: November 17, 2011
    Date of Patent: October 21, 2014
    Assignee: HTC Corporation
    Inventors: David Brinda, Sheng-Hsin Huang, Jye Rong, Cheng-Chieh Chang
  • Patent number: D726215
    Type: Grant
    Filed: October 27, 2011
    Date of Patent: April 7, 2015
    Assignee: HTC Corporation
    Inventors: David Brinda, Sheng-Hsin Huang, Jye Rong, Wei-Chia Yen, Yi-Min Chien, Cheng-Chieh Chang
  • Patent number: D730382
    Type: Grant
    Filed: October 28, 2011
    Date of Patent: May 26, 2015
    Assignee: HTC Corporation
    Inventors: David Brinda, Sheng-Hsin Huang, Jye Rong, Wei-Chia Yen, Yi-Min Chien, Cheng-Chieh Chang
  • Patent number: D730383
    Type: Grant
    Filed: November 1, 2011
    Date of Patent: May 26, 2015
    Assignee: HTC Corporation
    Inventors: David Brinda, Sheng-Hsin Huang, Jye Rong, Wei-Chia Yen, Yi-Min Chien, Cheng-Chieh Chang
  • Patent number: D731524
    Type: Grant
    Filed: October 27, 2011
    Date of Patent: June 9, 2015
    Assignee: HTC Corporation
    Inventors: David Brinda, Sheng-Hsin Huang, Jye Rong, Wei-Chia Yen, Yi-Min Chien, Cheng-Chieh Chang
  • Patent number: D737848
    Type: Grant
    Filed: October 27, 2011
    Date of Patent: September 1, 2015
    Assignee: HTC Corporation
    Inventors: David Brinda, Sheng-Hsin Huang, Jye Rong, Wei-Chia Yen, Yi-Min Chien, Cheng-Chieh Chang