Patents by Inventor Chih-Lung Lee

Chih-Lung Lee 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: 20160268444
    Abstract: A thin film transistor comprises a substrate, a gate electrode formed on the substrate, an electrically insulating layer covering the gate electrode, a channel layer made of a semiconductor material and formed on the electrically insulating layer, a source electrode formed on a first lateral side of the electrically insulating layer, and a drain electrode formed on an opposite second lateral side of the electrically insulating layer. The source electrode has an inner end covering a first outer end of the channel layer and electrically connecting therewith. The drain electrode has an inner end covering an opposite second outer end of the channel layer and electrically connecting therewith. An area of the channel layer adjacent to and not covered by one of the source electrode and the drain electrode has an electrical conductivity lower than the electrical conductivity of other area of the channel layer.
    Type: Application
    Filed: May 23, 2016
    Publication date: September 15, 2016
    Inventors: KUO-LUNG FANG, YI-CHUN KAO, PO-LI SHIH, CHIH-LUNG LEE, HSIN-HUA LIN
  • Patent number: 9437750
    Abstract: A method for forming a TFT includes providing a substrate, and forming a gate electrode, an electrically insulating layer, a semiconductor layer, an etch stop layer and a photoresist layer successively on the substrate. A photolithographic process is performed to the photoresist layer by using a half-tone mask to thereby configure the photoresist layer to have two recesses in a top thereof. Two lateral ends of the etch stop layer are etched away to form an etch stop pattern. The photoresist layer is heated to flow downwardly. Two lateral ends of the semiconductor channel are etched away to become a channel layer. An ashing is performed to the photoresist layer to have the recesses thereof communicate atmosphere with the etch stop pattern. The etch stop pattern is etched to define first and second through holes. Source and drain electrodes are formed to electrically connect with the channel layer.
    Type: Grant
    Filed: May 29, 2015
    Date of Patent: September 6, 2016
    Assignee: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Kuo-Lung Fang, Yi-Chun Kao, Hsin-Hua Lin, Chih-Lung Lee, Po-Li Shih
  • Publication number: 20160190327
    Abstract: A thin film transistor (TFT) includes a substrate, a TFT formed on the substrate, and a passivation layer formed on the TFT. The TFT includes a gate, a source, a drain, and a channel layer. The source and the drain are respectively located at opposite sides of the channel layer. The channel layer includes oxygen ions which are implanted into the channel layer by an oxygen implanting process performed in an environment having an air pressure greater than a standard atmospheric pressure.
    Type: Application
    Filed: June 26, 2015
    Publication date: June 30, 2016
    Inventors: YI-CHUN KAO, HSIN-HUA LIN, CHIH-LUNG LEE, KUO-LUNG FANG, PO-LI SHIH
  • Publication number: 20160190326
    Abstract: A method for forming a TFT includes providing a substrate, a gate electrode on the substrate, an electrically insulating layer on the substrate to totally cover the gate electrode, a channel layer on the electrically insulating layer, a first photoresist pattern on the channel layer, a metal layer on the electrically insulating layer, the channel layer and the first photoresist layer, and a second photoresist pattern on the metal layer. A middle portion of the metal layer is then removed to form a source electrode and a drain electrode and to expose the first photoresist pattern and a portion of the channel layer between the first and second photoresist patterns. The exposed portion of the channel layer is then processed to have its electrical conductivity be lowered to thereby reduce a hot-carrier effect of the channel layer.
    Type: Application
    Filed: January 7, 2015
    Publication date: June 30, 2016
    Inventors: KUO-LUNG FANG, YI-CHUN KAO, PO-LI SHIH, CHIH-LUNG LEE, HSIN-HUA LIN
  • Publication number: 20160190341
    Abstract: A thin film transistor includes a first gate electrode located on a base, a second gate electrode located on the base, an insulating layer, a source electrode, a drain electrode, and a channel layer. The insulating layer covers the base, the first gate electrode, and the second gate electrode. The second gate electrode is insulated from the first gate electrode. The channel layer includes a first portion and a second portion sandwiched between the first portion and the insulating layer. A conductivity of the second portion is larger than a conductivity of the first portion. The first portion includes a first region facing the first gate electrode and a second region facing the second gate electrode. The source electrode is electrically connected to the first region, and the drain electrode is electrically connected to the second region.
    Type: Application
    Filed: September 8, 2015
    Publication date: June 30, 2016
    Inventors: KUO-LUNG FANG, PO-LI SHIH, YI-CHUN KAO, HSIN-HUA LIN, CHIH-LUNG LEE
  • Patent number: 9379251
    Abstract: A method for forming a TFT includes providing a substrate, a gate electrode on the substrate, an electrically insulating layer on the substrate to totally cover the gate electrode, a channel layer on the electrically insulating layer, a first photoresist pattern on the channel layer, a metal layer on the electrically insulating layer, the channel layer and the first photoresist layer, and a second photoresist pattern on the metal layer. A middle portion of the metal layer is then removed to form a source electrode and a drain electrode and to expose the first photoresist pattern and a portion of the channel layer between the first and second photoresist patterns. The exposed portion of the channel layer is then processed to have its electrical conductivity be lowered to thereby reduce a hot-carrier effect of the channel layer.
    Type: Grant
    Filed: January 7, 2015
    Date of Patent: June 28, 2016
    Assignee: Ye Xin Technology Consulting Co., Ltd.
    Inventors: Kuo-Lung Fang, Yi-Chun Kao, Po-Li Shih, Chih-Lung Lee, Hsin-Hua Lin
  • Publication number: 20160163864
    Abstract: A thin film transistor can include a substrate, a gate electrode on the substrate, a first electrode located on the substrate and surrounded by the gate electrode, a second electrode located on the first electrode and surrounded by the gate electrode, and a channel layer located between the first electrode and the second electrode. The gate electrode can include a first margin metal layer on the substrate and a second metal layer located on the first margin metal layer. A method for manufacturing the thin film transistor is also provided.
    Type: Application
    Filed: August 21, 2015
    Publication date: June 9, 2016
    Inventors: HSIN-HUA LIN, YI-CHUN KAO, CHIH-LUNG LEE, PO-LI SHIH, KUO-LUNG FANG
  • Publication number: 20160155847
    Abstract: A thin film transistor includes a gate, a source, a drain, a channel layer, and a shielding layer. The shielding layer, the source, and the drain are located on a same layer. The shielding layer is located on the channel layer and is between the source and the drain to prevent light from being transmitted to the channel layer.
    Type: Application
    Filed: April 15, 2015
    Publication date: June 2, 2016
    Inventors: KUO-LUNG FANG, YI-CHUN KAO, CHIH-LUNG LEE, HSIN-HUA LIN, PO-LI SHIH
  • Publication number: 20160118478
    Abstract: A method of manufacturing a thin film transistor substrate is provided, including a first photoresist pattern covers a channel during a process of etching a second photoresist pattern and protects the channel. Thus, an etching stop layer is not required.
    Type: Application
    Filed: December 30, 2014
    Publication date: April 28, 2016
    Inventors: KUO-LUNG FANG, YI-CHUN KAO, PO-LI SHIH, CHIH-LUNG LEE, HSIN-HUA LIN
  • Publication number: 20160118411
    Abstract: A TFT array substrate includes a plurality of scan lines, a plurality of date lines, a plurality of pixels, a first TFT, and a second TFT. The number of scan lines includes a first scan line. The date lines are insulated with the scan lines include a first date line and a second date line. The first date line is insulated and at least partly covering the second date line. The pixels are defined by two adjacent scan lines and two adjacent date lines. The first TFT is configured to drive a first pixel at the first side of the first scan line and being coupled with the first scan line and the first date line. The second TFT is configured to drive a second pixel at the second side of the first scan line and being coupled with the first scan line and the second date line.
    Type: Application
    Filed: July 24, 2015
    Publication date: April 28, 2016
    Inventors: YI-CHUN KAO, HSIN-HUA LIN, PO-LI SHIH, CHIH-LUNG LEE
  • Patent number: 9257564
    Abstract: A thin film transistor (TFT) includes a gate, a drain, a source, an insulating layer, a metal oxide layer, and an etch stopper layer. The metal oxide layer includes a source area, a drain area, and a channel area. The source is electrically coupled to the source area and the drain is electrically coupled to the drain area. Oxygen ions are implanted into the channel area via a surface treatment process to make an oxygen concentration of the channel area be greater than an oxygen concentration of each of the source area and the drain area.
    Type: Grant
    Filed: June 17, 2014
    Date of Patent: February 9, 2016
    Assignee: Ye Xin Technology Consulting Co., Ltd.
    Inventors: Chih-Lung Lee, Po-Li Shih
  • Publication number: 20150060973
    Abstract: An array substrate for a liquid crystal display device includes a first storage capacitor and a second storage capacitor for increased capacitance. The first storage capacitor is formed by a first common electrode and a pixel electrode. The second storage capacitor is formed by a second common electrode and the pixel electrode.
    Type: Application
    Filed: September 2, 2014
    Publication date: March 5, 2015
    Inventors: WU-LIU TSAI, YI-CHUN KAO, HSIN-HUA LIN, PO-LI SHIH, CHIH-LUNG LEE
  • Publication number: 20140374746
    Abstract: A thin film transistor (TFT) includes a gate, a drain, a source, an insulating layer, a metal oxide layer, and an etch stopper layer. The metal oxide layer includes a source area, a drain area, and a channel area. The source is electrically coupled to the source area and the drain is electrically coupled to the drain area. Oxygen ions are implanted into the channel area via a surface treatment process to make an oxygen concentration of the channel area be greater than an oxygen concentration of each of the source area and the drain area.
    Type: Application
    Filed: June 17, 2014
    Publication date: December 25, 2014
    Inventors: CHIH-LUNG LEE, PO-LI SHIH
  • Patent number: 8643294
    Abstract: A single stage electronic ballast with power factor correction is provided. The single stage electronic ballast can work under the present intensity discharge lamp without any change and provide higher efficient, lower power consumption of lighting system, and better lighting quality of lamps. The single stage electronic ballast can also provide a stable current to load (lamp) for a long time. The single stage electronic ballast includes a first switch and a second switch that are controlled with complementary switching so as to provide an output voltage in response to the input power source and the variation of the load.
    Type: Grant
    Filed: March 8, 2012
    Date of Patent: February 4, 2014
    Assignee: National Tsing Hua University
    Inventors: Ching-Tsai Pan, Po-Yen Chen, En-Lin Chen, Chih-Lung Lee, Yu-Chuan Wang
  • Publication number: 20130181625
    Abstract: A single stage electronic ballast with power factor correction is provided. The single stage electronic ballast can work under the present intensity discharge lamp without any change and provide higher efficient, lower power consumption of lighting system, and better lighting quality of lamps. The single stage electronic ballast can also provide a stable current to load (lamp) for a long time. The single stage electronic ballast includes a first switch and a second switch that are controlled with complementary switching so as to provide an output voltage in response to the input power source and the variation of the load.
    Type: Application
    Filed: March 8, 2012
    Publication date: July 18, 2013
    Inventors: Ching-Tsai PAN, Po-Yen Chen, En-Lin Chen, Chih-Lung Lee, Yu-Chuan Wang
  • Publication number: 20080269236
    Abstract: The invention relates to 1,2,4 oxadiazole compounds and analogs thereof, represented by formula (II), and compositions and methods of use thereof.
    Type: Application
    Filed: June 6, 2008
    Publication date: October 30, 2008
    Applicant: ABBOTT LABORATORIES
    Inventors: Jianguo Ji, Chih-Lung Lee, Kevin B. Sippy, Tao Li, Murali Gopalakrishnan