Patents by Inventor Yu-Fang Wang

Yu-Fang Wang 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: 20190178989
    Abstract: A dynamic road surface detecting method based on a three-dimensional sensor is provided. The three-dimensional sensor receives a plurality of laser-emitting points reflected from a road surface to generate a plurality of three-dimensional sensor scan point coordinates which is transmitted to a point cloud processing module. The point cloud processing module transforms the three-dimensional sensor scan point coordinates to a plurality of vehicle scan point coordinates according to a coordinate translation equation, and then transforms a plurality of vehicle coordinate height values of the vehicle scan point coordinates to a road surface height reference line according to a folding line fitting algorithm. An absolute difference of two scan point height values of any two adjacent scan points on each of the scan lines is analyzed to generate a discontinuous point. The point cloud processing module links the discontinuous points to form a road boundary.
    Type: Application
    Filed: December 27, 2017
    Publication date: June 13, 2019
    Inventors: Yi-Shueh TSAI, Yu-Fang WANG
  • Publication number: 20190133493
    Abstract: A method for analyzing gait is provided for a system including multiple accelerometers. The method includes: for each time point and each accelerometer, calculating a root mean square (RMS) value according to the accelerations sensed on sensing axes of the corresponding accelerometer; calculating a cross correlation coefficient according to the RMS values of a first accelerometer and a second accelerometer; calculating a first auto-correlation coefficient of the RMS values of the first accelerometer; calculating a second auto-correlation coefficient of the RMS values of the second accelerometer; and calculating a first gait index according to the cross correlation coefficient, the first auto-correlation coefficient, and the second auto-correlation coefficient.
    Type: Application
    Filed: November 29, 2017
    Publication date: May 9, 2019
    Inventors: Wei-Chih LIEN, Wen-Fong WANG, Ta-Shen KUAN, Pei-Fang SU, Yung-Heng CHENG, Yu-Lun ZHENG, Chao-Hsien HSIEH
  • Patent number: 8007987
    Abstract: A manufacturing method of asymmetric bumps is provided. First, a substrate is provided. A film layer is then formed on the substrate. Next, a complex photomask including at least one transparent region, a number of opaque regions, and a number of semi-transparent regions is provided. Each of the semi-transparent regions is disposed between two adjacent opaque regions, and at least one light-shielding pattern is randomly disposed in each of the semi-transparent regions. The film layer is then patterned with use of the complex photomask, and multiple asymmetric bumps are formed on the substrate. By using the complex photomask, manufacturing steps of the asymmetric bumps can be reduced. Besides, a manufacturing method of a pixel structure having the above-mentioned asymmetric bumps is also provided.
    Type: Grant
    Filed: December 19, 2008
    Date of Patent: August 30, 2011
    Assignee: Chunghwa Picture Tubes, Ltd.
    Inventors: Te-Yu Chen, Chin-Lung Yeh, Yu-Fang Wang
  • Patent number: 7999902
    Abstract: A liquid crystal display panel includes a first transparent substrate, a second transparent substrate opposite to the first transparent substrate, and a sealant disposed therebetween. The first transparent substrate includes a peripheral region, and a plurality of conductive lines disposed in the peripheral region. The conductive lines include a plurality of transparent conductive lines and non-transparent conductive lines. The sealant is disposed in the peripheral region.
    Type: Grant
    Filed: January 14, 2009
    Date of Patent: August 16, 2011
    Assignee: Chunghwa Picture Tubes, Ltd.
    Inventors: Te-Yu Chen, Chin-Lung Yeh, Yu-Fang Wang
  • Patent number: 7816194
    Abstract: A method of manufacturing thin film transistor is provided, in which the method of manufacturing includes a new etching process of island semiconductor. The new etching process of island semiconductor is controlled by a flow rate of etching gas and a regulation of etching power. When etching the island semiconductor, a part of gate insulation layer exposed out of the island semiconductor is etched at the same time. Consequently, the thickness of gate insulation layer over the storage capacitance electrode is reduced, the distance between the pixel electrode and the storage capacitance electrode is decreased, and the storage capacitance of pixel is increased. Finally, the width of storage capacitance electrode is reduced appropriately and the aperture ratio of product is increased.
    Type: Grant
    Filed: August 20, 2009
    Date of Patent: October 19, 2010
    Assignee: Chunghwa Picture Tubes, Ltd.
    Inventors: Ya-Ju Lu, Jun-Yao Huang, Ming-Chu Chen, Yu-Fang Wang, Chun-Jen Ma
  • Publication number: 20100227442
    Abstract: A method of manufacturing thin film transistor is provided, in which the method of manufacturing includes a new etching process of island semiconductor. The new etching process of island semiconductor is controlled by a flow rate of etching gas and a regulation of etching power. When etching the island semiconductor, a part of gate insulation layer exposed out of the island semiconductor is etched at the same time. Consequently, the thickness of gate insulation layer over the storage capacitance electrode is reduced, the distance between the pixel electrode and the storage capacitance electrode is decreased, and the storage capacitance of pixel is increased. Finally, the width of storage capacitance electrode is reduced appropriately and the aperture ratio of product is increased.
    Type: Application
    Filed: August 20, 2009
    Publication date: September 9, 2010
    Applicant: CHUNGHWA PICTURE TUBES, LTD.
    Inventors: Ya-Ju Lu, Jun-Yao Huang, Ming-Chu Chen, Yu-Fang Wang, Chun-Jen Ma
  • Patent number: 7755713
    Abstract: A peripheral circuit disposed on a substrate having an active device array is provided. The peripheral circuit includes first test pads, second test pads, first lines, and second lines. The first and the second lines are electrically connected to the active device array. Each first test pad includes a first conductive layer and a second conductive layer electrically connected to the first conductive layer. The first conductive layer electrically connects at least two of the adjacent first lines. The second test pads are interposed between the first test pads and the active device array. Each second test pad includes third conductive layers and a fourth conductive layer electrically connected to the third conductive layers. The first lines pass through the third conductive layers and are insulated from the fourth conductive layer. Each third conductive layer is electrically connected to one of the adjacent second lines respectively.
    Type: Grant
    Filed: September 21, 2008
    Date of Patent: July 13, 2010
    Assignee: Chunghwa Picture Tubes, Ltd.
    Inventors: Heng-Chang Lin, Yu-Fang Wang, Ming-Kang Huang, Chih-Kun Lin
  • Patent number: 7746443
    Abstract: A method of utilizing dual-layer photoresist to form black matrixes and spacers on a control circuit substrate is provided. The dual-layer photoresist includes a layer of black resin and a layer of transparent photoresist. The black resin, having an optical density greater than three, is mainly used to achieve the effect of black matrix. The transparent photoresist is mainly used to satisfy the needed cell gap between two transparent substrates.
    Type: Grant
    Filed: October 24, 2005
    Date of Patent: June 29, 2010
    Assignee: HannStar Display Corporation
    Inventors: Chih-Chieh Lan, Hung-Yi Hung, Yu-Fang Wang
  • Publication number: 20100104956
    Abstract: A manufacturing method of asymmetric bumps is provided. First, a substrate is provided. A film layer is then formed on the substrate. Next, a complex photomask including at least one transparent region, a number of opaque regions, and a number of semi-transparent regions is provided. Each of the semi-transparent regions is disposed between two adjacent opaque regions, and at least one light-shielding pattern is randomly disposed in each of the semi-transparent regions. The film layer is then patterned with use of the complex photomask, and multiple asymmetric bumps are formed on the substrate. By using the complex photomask, manufacturing steps of the asymmetric bumps can be reduced. Besides, a manufacturing method of a pixel structure having the above-mentioned asymmetric bumps is also provided.
    Type: Application
    Filed: December 19, 2008
    Publication date: April 29, 2010
    Applicant: Chunghwa Picture Tubes, LTD.
    Inventors: Te-Yu Chen, Chin-Lung Yeh, Yu-Fang Wang
  • Publication number: 20100085526
    Abstract: A liquid crystal display panel includes a first transparent substrate, a second transparent substrate opposite to the first transparent substrate, and a sealant disposed therebetween. The first transparent substrate includes a peripheral region, and a plurality of conductive lines disposed in the peripheral region. The conductive lines include a plurality of transparent conductive lines and non-transparent conductive lines. The sealant is disposed in the peripheral region.
    Type: Application
    Filed: January 14, 2009
    Publication date: April 8, 2010
    Inventors: Te-Yu Chen, Chin-Lung Yeh, Yu-Fang Wang
  • Publication number: 20090207369
    Abstract: A peripheral circuit disposed on a substrate having an active device array is provided. The peripheral circuit includes first test pads, second test pads, first lines, and second lines. The first and the second lines are electrically connected to the active device array. Each first test pad includes a first conductive layer and a second conductive layer electrically connected to the first conductive layer. The first conductive layer electrically connects at least two of the adjacent first lines. The second test pads are interposed between the first test pads and the active device array. Each second test pad includes third conductive layers and a fourth conductive layer electrically connected to the third conductive layers. The first lines pass through the third conductive layers and are insulated from the fourth conductive layer. Each third conductive layer is electrically connected to one of the adjacent second lines respectively.
    Type: Application
    Filed: September 21, 2008
    Publication date: August 20, 2009
    Applicant: CHUNGHWA PICTURE TUBES, LTD.
    Inventors: Heng-Chang Lin, Yu-Fang Wang, Ming-Kang Huang, Chih-Kun Lin
  • Publication number: 20060033864
    Abstract: A method of utilizing dual-layer photoresist to form black matrixes and spacers on a control circuit substrate is provided. The dual-layer photoresist includes a layer of black resin and a layer of transparent photoresist. The black resin, having an optical density greater than three, is mainly used to achieve the effect of black matrix. The transparent photoresist is mainly used to satisfy the needed cell gap between two transparent substrates.
    Type: Application
    Filed: October 24, 2005
    Publication date: February 16, 2006
    Applicant: HannStar Display Corporation
    Inventors: Chih-Chieh Lan, Hung-Yi Hung, Yu-Fang Wang
  • Publication number: 20060033863
    Abstract: A color liquid crystal display includes a control circuit located on a first transparent substrate. The control circuit includes control devices and a chessboard-like circuit with supporting areas. A passivation layer is located on the control circuit and has contact windows to expose electrodes of the control devices. A color filter layer is located on the passivation layer and pixel electrodes are located on the color filter layer. The pixel electrodes are electrically connected to the electrodes of the control devices through the contact windows. First photoresist layers are located on the supporting areas and the control devices, and second photoresist layers are located on the first photoresist layers. A common electrode is located on a surface of a second transparent substrate that faces the first transparent substrate. A liquid crystal layer is located between the first and the second transparent substrates.
    Type: Application
    Filed: October 24, 2005
    Publication date: February 16, 2006
    Applicant: HannStar Display Corporation
    Inventors: Chih-Chieh Lan, Hung-Yi Hung, Yu-Fang Wang
  • Patent number: 6958792
    Abstract: A method of utilizing dual-layer photoresist to form black matrixes and spacers on a control circuit substrate is provided. The dual-layer photoresist is composed of a layer of black resin and a layer of transparent photoresist. The black resin, of which optical density is greater than three, is mainly used to achieve the effect of black matrix. The transparent photoresist is mainly used to satisfy the needed cell gap between two transparent substrates.
    Type: Grant
    Filed: June 10, 2003
    Date of Patent: October 25, 2005
    Assignee: Hannstar Display Corporation
    Inventors: Chih-Chieh Lan, Hung-Yi Hung, Yu-Fang Wang
  • Publication number: 20040125293
    Abstract: An integrated color filter and fabricating method thereof, featuring a transparent organic layer formed under or above a color filter, before or after the fabrication process of the color filter. The transparent organic layer has higher transparency and lower dielectric constant than the color filter. By combining the transparent organic layer and the color filter, the parasitic capacitance is reduced without sacrificing light transmission.
    Type: Application
    Filed: September 12, 2003
    Publication date: July 1, 2004
    Inventors: Jia-Shyong Cheng, Yu-Fang Wang
  • Patent number: 6749975
    Abstract: A method of utilizing color photoresist to form black matrix and spacers on a control circuit substrate is described. Utilizing the character of the red and the blue photoresist having a non-overlapping transmittance region in the visible light region, a black matrixes consisting of overlapping red and blue photoresist on control devices are used to prevent the photo current occurring in the off state of the control devices. In addition, three different color photoresist plus another-color photoresist are overlapped to form spacers on metal lines.
    Type: Grant
    Filed: May 6, 2003
    Date of Patent: June 15, 2004
    Assignee: Hannstar Display Corporation
    Inventors: Jia-Shyong Cheng, Yu-Fang Wang
  • Publication number: 20040100596
    Abstract: A method of utilizing dual-layer photoresist to form black matrixes and spacers on a control circuit substrate is provided. The dual-layer photoresist is composed of a layer of black resin and a layer of transparent photoresist. The black resin, of which optical density is greater than three, is mainly used to achieve the effect of black matrix. The transparent photoresist is mainly used to satisfy the needed cell gap between two transparent substrates.
    Type: Application
    Filed: June 10, 2003
    Publication date: May 27, 2004
    Applicant: HANNSTAR DISPLAY CORPORATION
    Inventors: Chih-Chieh Lan, Hung-Yi Hung, Yu-Fang Wang
  • Publication number: 20040096756
    Abstract: A method of utilizing color photoresist to form black matrix and spacers on a control circuit substrate is described. Utilizing the character of the red and the blue photoresist having a non-overlapping transmittance region in the visible light region, a black matrixes consisting of overlapping red and blue photoresist on control devices are used to prevent the photo current occurring in the off state of the control devices. In addition, three different color photoresist plus another color photoresist are overlapped to form spacers on metal lines.
    Type: Application
    Filed: May 6, 2003
    Publication date: May 20, 2004
    Applicant: HANNSTAR DISPLAY CORPORATION
    Inventors: Jia-Shyong Cheng, Yu-Fang Wang
  • Publication number: 20040075789
    Abstract: A protruding pattern is formed by photolithography on the gate and signal lines of an active matrix. The protruding pattern defines color filter unit areas for each pixel of the active matrix. Resins of appropriate colors are then introduced to each of the color filter unit areas by an ink-jet printer. The protruding pattern retains the printed resins within the photolithographically defined areas, thus providing a highly accurate color filter unit structures while eliminating the complexity and waste of conventional colored resin patterning techniques. The protruding pattern is preferably also formed over the transistor of each pixel area and provided with a contact hole that exposes a portion of the drain electrode of each transistor.
    Type: Application
    Filed: September 12, 2003
    Publication date: April 22, 2004
    Applicant: HannStar Display Corp.
    Inventor: Yu-Fang Wang
  • Patent number: 6558971
    Abstract: A method for manufacturing an LCD panel comprises the steps of providing a substrate having a conducting layer forming a pad and a conducting line, and an isolation layer on the pad and the conducting line, forming a planarization layer on the isolation layer above the conducting line, and a first through hole in the planarization layer, the first through hole exposing the isolation layer and aligned with the conducting line, forming a masking layer on the isolation layer above the pad, and a second through hole in the masking layer, the second through hole exposing the isolation layer and aligned with the pad, and etching the isolation layer with the masking of the planarization layer and the masking layer, whereby the isolation layer exposed by the first and second through hole is removed.
    Type: Grant
    Filed: August 15, 2001
    Date of Patent: May 6, 2003
    Assignee: Hannstar Display Corp.
    Inventors: In-Cha Hsieh, Yu-Fang Wang