Patents by Inventor Chian-Chih Hsiao

Chian-Chih Hsiao 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).

  • Patent number: 8440482
    Abstract: A method for manufacturing a transflective liquid crystal display panel includes providing an array substrate having a plurality of pixel regions, each of the pixel regions includes a device region, a transmission region and a reflection region defined therein; forming a first metal layer on the array substrate; patterning the first metal layer to simultaneously form a gate electrode in the device region and a plurality of metal bumps in the reflection region; forming a first insulating layer having a rough surface and covering the gate electrode and the metal bumps on the array substrate; forming a patterned semiconductor layer on the gate electrode; forming a reflective layer covering the first insulating layer and having a rough surface in the reflection region; and sequentially forming a patterned second insulating layer and a transparent pixel electrode on the array substrate.
    Type: Grant
    Filed: December 15, 2010
    Date of Patent: May 14, 2013
    Assignee: HannStar Display Corp.
    Inventors: Sweehan J. H. Yang, Po-Sheng Shih, Chian-Chih Hsiao, Hsien-Tang Hu, Ting-Chung Liu
  • Publication number: 20110147749
    Abstract: A method for manufacturing a transflective liquid crystal display panel includes providing an array substrate having a plurality of pixel regions, each of the pixel regions includes a device region, a transmission region and a reflection region defined therein; forming a first metal layer on the array substrate; patterning the first metal layer to simultaneously form a gate electrode in the device region and a plurality of metal bumps in the reflection region; forming a first insulating layer having a rough surface and covering the gate electrode and the metal bumps on the array substrate; forming a patterned semiconductor layer on the gate electrode; forming a reflective layer covering the first insulating layer and having a rough surface in the reflection region; and sequentially forming a patterned second insulating layer and a transparent pixel electrode on the array substrate.
    Type: Application
    Filed: December 15, 2010
    Publication date: June 23, 2011
    Inventors: Sweehan J.H. Yang, Po-Sheng Shih, Chian-Chih Hsiao, Hsien-Tang Hu, Ting-Chung Liu
  • Patent number: 7791080
    Abstract: A method of fabricating an image TFT array of a direct X-ray image sensor includes forming a first transparent conductive layer on a substrate; forming a gate line including a gate electrode, a common line, and a common electrode jutting out from the common line; forming an insulation layer; forming a semiconducting island on the insulation layer in the transistor region; forming a first via hole for the common electrode; forming a data line and a source electrode and a drain electrode; forming a passivation layer and a second via hole penetrating the passivation layer for the source electrode; forming a second transparent conductive layer as a top electrode. The insulation layer is formed on the first transparent conductive layer to serve as a dielectric layer of a capacitor before the TFT structure formed and can be formed at a relatively high temperature.
    Type: Grant
    Filed: October 14, 2008
    Date of Patent: September 7, 2010
    Assignee: HannStar Display Corp.
    Inventors: Chian-Chih Hsiao, Chih-Chieh Lan
  • Publication number: 20090032892
    Abstract: A method of fabricating an image TFT array of a direct X-ray image sensor includes forming a first transparent conductive layer on a substrate; forming a gate line including a gate electrode, a common line, and a common electrode jutting out from the common line; forming an insulation layer; forming a semiconducting island on the insulation layer in the transistor region; forming a first via hole for the common electrode; forming a data line and a source electrode and a drain electrode; forming a passivation layer and a second via hole penetrating the passivation layer for the source electrode; forming a second transparent conductive layer as a top electrode. The insulation layer is formed on the first transparent conductive layer to serve as a dielectric layer of a capacitor before the TFT structure formed and can be formed at a relatively high temperature.
    Type: Application
    Filed: October 14, 2008
    Publication date: February 5, 2009
    Inventors: Chian-Chih Hsiao, Chih-Chieh Lan
  • Patent number: 7452782
    Abstract: A method of fabricating an image TFT array of a direct X-ray image sensor includes forming a first transparent conductive layer on a substrate; forming a gate line including a gate electrode, a common line, and a common electrode jutting out from the common line; forming an insulation layer; forming a semiconducting island on the insulation layer in the transistor region; forming a first via hole for the common electrode; forming a data line and a source electrode and a drain electrode; forming a passivation layer and a second via hole penetrating the passivation layer for the source electrode; forming a second transparent conductive layer as a top electrode. The insulation layer is formed on the first transparent conductive layer to serve as a dielectric layer of a capacitor before the TFT structure formed and can be formed at a relatively high temperature.
    Type: Grant
    Filed: November 21, 2005
    Date of Patent: November 18, 2008
    Assignee: HannStar Display Corp.
    Inventors: Chian-Chih Hsiao, Chih-Chieh Lan
  • Patent number: 7439544
    Abstract: The present invention provides a manufacturing method of an image TFT array, which includes providing a substrate including a thin film transistor region, a storage capacitor region, a pad region, and a common electrode region, forming a photoresist layer on the substrate, and performing a photolithographic and etching process by utilizing a half-tone mask to pattern the photoresist layer to define a position of a through hole on the storage capacitor region and form the photoresist layer of a first thickness on the thin film transistor region and the photoresist layer of a second thickness on the region between the thin film transistor region and the storage capacitor region, wherein the first thickness is greater than the second thickness.
    Type: Grant
    Filed: April 25, 2005
    Date of Patent: October 21, 2008
    Assignee: HannStar Display Corp.
    Inventors: Chin-Mao Lin, Kei-Hsiung Yang, Chian-Chih Hsiao
  • Publication number: 20070114625
    Abstract: A method of fabricating an image TFT array of a direct X-ray image sensor includes forming a first transparent conductive layer on a substrate; forming a gate line including a gate electrode, a common line, and a common electrode jutting out from the common line; forming an insulation layer; forming a semiconducting island on the insulation layer in the transistor region; forming a first via hole for the common electrode; forming a data line and a source electrode and a drain electrode; forming a passivation layer and a second via hole penetrating the passivation layer for the source electrode; forming a second transparent conductive layer as a top electrode. The insulation layer is formed on the first transparent conductive layer to serve as a dielectric layer of a capacitor before the TFT structure formed and can be formed at a relatively high temperature.
    Type: Application
    Filed: November 21, 2005
    Publication date: May 24, 2007
    Inventors: Chian-Chih Hsiao, Chih-Chieh Lan
  • Patent number: 7145172
    Abstract: A thin film transistor array substrate of a thin film transistor liquid crystal display (TFT-LCD) is provided. The gate dielectric layer of the TFT includes a silicon nitride layer, a dielectric layer and a silicon nitride layer, and the etching selectivity of the amorphous silicon layer over the dielectric layer is not less than about 5.0. Therefore, the dielectric layer can be an etching stop layer when doped and undoped amorphous silicon layers are etched to form source/drain stacked layers or a conductive layer is etched to form a gate on the gate dielectric layer. Hence, the dielectric layer thickness can be controlled, and thereby the capacitance of the storage capacitor can be controlled.
    Type: Grant
    Filed: September 2, 2004
    Date of Patent: December 5, 2006
    Assignee: Hannstar Display Corporation
    Inventors: Chih-Yu Peng, Wei-Chuan Lin, Chian-Chih Hsiao, Ta-Ko Chuang, Chun-Hung Chu, Chih-Lung Lin, Chin-Mao Lin
  • Publication number: 20060183263
    Abstract: The present invention provides a manufacturing method of an image TFT array, which includes providing a substrate including a thin film transistor region, a storage capacitor region, a pad region, and a common electrode region, forming a photoresist layer on the substrate, and performing a photolithographic and etching process by utilizing a half-tone mask to pattern the photoresist layer to define a position of a through hole on the storage capacitor region and form the photoresist layer of a first thickness on the thin film transistor region and the photoresist layer of a second thickness on the region between the thin film transistor region and the storage capacitor region, wherein the first thickness is greater than the second thickness.
    Type: Application
    Filed: April 25, 2005
    Publication date: August 17, 2006
    Inventors: Chin-Mao Lin, Kei-Hsiung YANG, Chian-Chih Hsiao
  • Patent number: 7087469
    Abstract: A method of controlling the capacitance of a thin film transistor liquid crystal display (TFT-LCD) storage capacitor is disclosed. In certain embodiments, the method includes i) forming a silicon island and a bottom electrode on the transparent substrate, the silicon island having an undoped region located on the central portion, and two doped regions respectively located on both sides, ii) forming a first silicon nitride layer on the transparent substrate, and iii) forming a stacked layer comprising a second silicon nitride layer and a conductive layer on the undoped region of the silicon island, and the first conductive layer of the stacked layer serving as a gate of a thin film transistor, wherein an etching selectivity ratio of the conductive layer over the dielectric layer is not less than about 5.0.
    Type: Grant
    Filed: September 3, 2004
    Date of Patent: August 8, 2006
    Assignee: Hannstar Display Corp.
    Inventors: Chih-Yu Peng, Wei-Chuan Lin, Chian-Chih Hsiao, Ta-Ko Chuang, Chun-Hung Chu, Chih-Lung Lin, Chin-Mao Lin
  • Patent number: 6953715
    Abstract: A method of controlling the capacitance of a thin film transistor liquid crystal display (TFT-LCD) storage capacitor is disclosed. In certain embodiments, the method includes i) forming an undoped amorphous silicon layer on a silicon nitride layer, ii) forming an etching mask on the undoped amorphous silicon layer, and iii) forming two doped amorphous silicon layers on portion of the undoped amorphous silicon layer and the etching mask, the two doped amorphous silicon layers being spaced apart and located on either side of the gate, wherein an etching selectivity ratio of the undpoed and doped amorphous silicon layers over the dielectric layer being not less than about 5.0.
    Type: Grant
    Filed: September 3, 2004
    Date of Patent: October 11, 2005
    Assignee: HannStar Display Corporation
    Inventors: Chih-Yu Peng, Wei-Chuan Lin, Chian-Chih Hsiao, Ta-Ko Chuang, Chun-Hung Chu, Chih-Lung Lin, Chin-Mao Lin
  • Publication number: 20050037533
    Abstract: A method of controlling the capacitance of a thin film transistor liquid crystal display (TFT-LCD) storage capacitor is disclosed. In certain embodiments, the method includes i) forming an undoped amorphous silicon layer on a silicon nitride layer, ii) forming an etching mask on the undoped amorphous silicon layer, and iii) forming two doped amorphous silicon layers on portion of the undoped amorphous silicon layer and the etching mask, the two doped amorphous silicon layers being spaced apart and located on either side of the gate, wherein an etching selectivity ratio of the undpoed and doped amorphous silicon layers over the dielectric layer being not less than about 5.0.
    Type: Application
    Filed: September 3, 2004
    Publication date: February 17, 2005
    Inventors: Chih-Yu Peng, Wei-Chuan Lin, Chian-Chih Hsiao, Ta-Ko Chuang, Chun-Hung Chu, Chih-Lung Lin, Chin-Mao Lin
  • Publication number: 20050032263
    Abstract: A method of controlling the capacitance of a thin film transistor liquid crystal display (TFT-LCD) storage capacitor is disclosed. In certain embodiments, the method includes i) forming a silicon island and a bottom electrode on the transparent substrate, the silicon island having an undoped region located on the central portion, and two doped regions respectively located on both sides, ii) forming a first silicon nitride layer on the transparent substrate, and iii) forming a stacked layer comprising a second silicon nitride layer and a conductive layer on the undoped region of the silicon island, and the first conductive layer of the stacked layer serving as a gate of a thin film transistor, wherein an etching selectivity ratio of the conductive layer over the dielectric layer is not less than about 5.0.
    Type: Application
    Filed: September 3, 2004
    Publication date: February 10, 2005
    Inventors: Chih-Yu Peng, Wei-Chuan Lin, Chian-Chih Hsiao, Ta-Ko Chuang, Chun-Hung Chu, Chih-Lung Lin, Chin-Mao Lin
  • Publication number: 20050023533
    Abstract: A thin film transistor array substrate of a thin film transistor liquid crystal display (TFT-LCD) is provided. The gate dielectric layer of the TFT includes a silicon nitride layer, a dielectric layer and a silicon nitride layer, and the etching selectivity of the amorphous silicon layer over the dielectric layer is not less than about 5.0. Therefore, the dielectric layer can be an etching stop layer when doped and undoped amorphous silicon layers are etched to form source/drain stacked layers or a conductive layer is etched to form a gate on the gate dielectric layer. Hence, the dielectric layer thickness can be controlled, and thereby the capacitance of the storage capacitor can be controlled.
    Type: Application
    Filed: September 2, 2004
    Publication date: February 3, 2005
    Inventors: Chih-Yu Peng, Wei-Chuan Lin, Chian-Chih Hsiao, Ta-Ko Chuang, Chun-Hung Chu, Chih-Lung Lin, Chin-Mao Lin
  • Patent number: 6800510
    Abstract: A method of controlling the capacitance of the TFT-LCD storage capacitor is provided. The gate dielectric layer of the TFT is composed of a silicon nitride layer, a dielectric layer and a silicon nitride layer, and the etching selectivity of the amorphous silicon layer over the dielectric layer is not less than about 5.0. Therefore, the dielectric layer can be an etching stop layer when a doped and an undoped amorphous silicon layers are etched to form source/drain stacked layers or a conductive layer is etched to form a gate on the gate dielectric layer. Hence, the dielectric layer thickness can be controlled; thereby the capacitance of the storage capacitor can be controlled.
    Type: Grant
    Filed: November 6, 2002
    Date of Patent: October 5, 2004
    Assignee: HannStar Display Corporation
    Inventors: Chih-Yu Peng, Wei-Chuan Lin, Chian-Chih Hsiao, Ta-Ko Chuang, Chun-Hung Chu, Chih-Lung Lin, Chin-Mao Lin
  • Publication number: 20040084678
    Abstract: A method of controlling the capacitance of the TFT-LCD storage capacitor is provided. The gate dielectric layer of the TFT is composed of a silicon nitride layer, a dielectric layer and a silicon nitride layer, and the etching selectivity of the amorphous silicon layer over the dielectric layer is not less than about 5.0. Therefore, the dielectric layer can be an etching stop layer when a doped and an undoped amorphous silicon layers are etched to form source/drain stacked layers or a conductive layer is etched to form a gate on the gate dielectric layer. Hence, the dielectric layer thickness can be controlled; thereby the capacitance of the storage capacitor can be controlled.
    Type: Application
    Filed: November 6, 2002
    Publication date: May 6, 2004
    Inventors: Chih-Yu Peng, Wei-Chuan Lin, Chian-Chih Hsiao, Ta-Ko Chuang, Chun-Hung Chu, Chih-Lung Lin, Chin-Mao Lin