Patents by Inventor Pin-Chen Chen
Pin-Chen Chen 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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Publication number: 20240030215Abstract: The ability of a grounded gate NMOS (ggNMOS) device to withstand and protect against human body model (HBM) electrostatic discharge (ESD) events is greatly increased by resistance balancing straps. The resistance balancing straps are areas of high resistance formed in the substrate between an active area that includes a MOSFET of the ggNMOS device and a bulk ring that surrounds the active area. A Vss rail is coupled to the substrate beneath the MOSFET through the bulk ring. The substrate beneath the MOSFET provides base regions for parasitic transistors that switch on for the ggNMOS device to operate. The straps inhibit low resistance pathways between the base regions and the bulk ring and prevent a large portion of the ggNMOS device from being switched off while a remaining portion of the ggNMOS device remains switched on. The strap may be divided into segments inserted at strategic locations.Type: ApplicationFiled: July 25, 2022Publication date: January 25, 2024Inventors: Hsiao-Ching Huang, Sheng-Fu Hsu, Hao-Hua Hsu, Pin-Chen Chen, Lin-Yu Huang, Yu-Chang Jong
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Patent number: 8908130Abstract: Optical elements and backlight modules employing the same are provided. The optical element can be a brightness enhancement diffusion complex film, comprising a cholesteric liquid crystal film and a transparent optical film directly disposed on the cholesteric liquid crystal film. Particularly, the whole transparent optical film directly contacts to the cholesteric liquid crystal film, in the absence of an intermediate located between the transparent optical film and the cholesteric liquid crystal film.Type: GrantFiled: November 2, 2009Date of Patent: December 9, 2014Assignee: Industrial Technology Research InstituteInventors: Ying-Jui Lin, Hui-Lung Kuo, Pin-Chen Chen, Pao-Ju Hsieh
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Patent number: 8368857Abstract: The present invention provides an optical film with functions of light collimating, light polarization for brightness enhancement and limiting viewing angle and a method for preparing the same. The optical film includes a plurality of layers of a cholesteric liquid crystal film bound together via an optical adhesive and a quarter-wavelength retardation plate bound with the cholesteric liquid crystal film via the optical adhesive. Therein, at least one layer of the cholesteric liquid crystal film has a polarized separated wavelength range covering the wavelength range of visible light of three primary colors of red, green and blue.Type: GrantFiled: August 18, 2009Date of Patent: February 5, 2013Assignee: Industrial Technology Research InstituteInventors: Hui-Lung Kuo, Mei-Chih Peng, Pin-Chen Chen, Ying-Jui Lin
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Patent number: 8263194Abstract: A color filter having a bi-layer metal grating is formed by nanoimprint lithography. Nanoimprint lithography, a low cost technology, includes two alternatives, i.e., hot-embossing nanoimprint lithography and UV-curable nanoimprint lithography. Manufacture steps includes providing a substrate with a polymer material layer disposed thereon. A plurality of lands and grooves are formed in the polymer material layer, and a first metal layer and a second metal layer are disposed on the surfaces of the lands and grooves, respectively. Finally, a color filter having a bi-layer metal grating is obtained.Type: GrantFiled: May 28, 2009Date of Patent: September 11, 2012Assignee: Industrial Technology Research InstituteInventors: Pin-Chen Chen, Hui-Lung Kuo, Chih-Ho Chiu, Liang-Bin Yu
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Patent number: 8113692Abstract: A light source module for generating polarized light includes a light emitting element, a reflector, and an optical element. The light emitting element generates a light ray, and the reflector reflects the light ray towards the optical element. The optical element includes a light splitting face and a reflection face. The light splitting face receives the light ray, and an angle between the light splitting face and the incident light ray is at about a Brewster's Angle. After the light ray is irradiated to the light splitting face, the light ray is divided into a refraction light and a reflection light. The reflection face reflects the refraction light, and the reflection face is substantially perpendicular to a path of the refraction light. Therefore, a light source with a high degree of polarization is realized by a design of the light splitting face and the reflection face.Type: GrantFiled: February 17, 2009Date of Patent: February 14, 2012Assignee: Industrial Technology Research InstituteInventors: Jung-Tsung Chou, Hui-Lung Kuo, Pin-Chen Chen, Yi-Ying Lai, Sheng-Wen Lin
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Patent number: 8054442Abstract: A low color shift polarizer assembly is provided, comprising a cholesteric liquid crystal film with a plurality of very tiny grooves which are irregularly dispersed on a surface of the cholesteric liquid crystal film. The selective reflective wavelength range of the cholesteric liquid crystal film has a long wavelength boundary ?700 nm and a short wavelength boundary ?420 nm. A quarter wavelength retardation plate can be disposed on the cholesteric liquid crystal film to build up the final low color shift polarizer assembly. The polarizer assembly can be combined with a backlight unit and further with a liquid crystal display to provide low color shift at large viewing angles and high brightness.Type: GrantFiled: April 30, 2009Date of Patent: November 8, 2011Assignee: Industrial Technology Research InstituteInventors: Hui-Lung Kuo, Mei-Chih Peng, Pin-Chen Chen, Ying-Jui Lin
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Publication number: 20100177266Abstract: The present invention provides an optical film with functions of light collimating, light polarization for brightness enhancement and limiting viewing angle and a method for preparing the same. The optical film includes a plurality of layers of a cholesteric liquid crystal film bound together via an optical adhesive and a quarter-wavelength retardation plate bound with the cholesteric liquid crystal film via the optical adhesive. Therein, at least one layer of the cholesteric liquid crystal film has a polarized separated wavelength range covering the wavelength range of visible light of three primary colors of red, green and blue.Type: ApplicationFiled: August 18, 2009Publication date: July 15, 2010Inventors: Hui-Lung KUO, Mei-Chih PENG, Pin-Chen CHEN, Ying-Jui LIN
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Publication number: 20100142048Abstract: A light source module for generating polarized light includes a light emitting element, a reflector, and an optical element. The light emitting element generates a light ray, and the reflector reflects the light ray towards the optical element. The optical element includes a light splitting face and a reflection face. The light splitting face receives the light ray, and an angle between the light splitting face and the incident light ray is at about a Brewster's Angle. After the light ray is irradiated to the light splitting face, the light ray is divided into a refraction light and a reflection light. The reflection face reflects the refraction light, and the reflection face is substantially perpendicular to a path of the refraction light. Therefore, a light source with a high degree of polarization is realized by a design of the light splitting face and the reflection face.Type: ApplicationFiled: February 17, 2009Publication date: June 10, 2010Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Jung-Tsung Chou, Hui-Lung Kuo, Pin-Chen Chen, Yi-Ying Lai, Sheng-Wen Lin
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Publication number: 20100110336Abstract: Optical elements and backlight modules employing the same are provided. The optical element can be a brightness enhancement diffusion complex film, comprising a cholesteric liquid crystal film and a transparent optical film directly disposed on the cholesteric liquid crystal film. Particularly, the whole transparent optical film directly contacts to the cholesteric liquid crystal film, in the absence of an intermediate located between the transparent optical film and the cholesteric liquid crystal film.Type: ApplicationFiled: November 2, 2009Publication date: May 6, 2010Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Ying-Jui Lin, Hui-Lung Kuo, Pin-Chen Chen, Pao-Ju Hsieh
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Patent number: 7619712Abstract: A polarizer-alignment dual function film. The film comprising an optically anisotropic material layer having a plurality of strips integrally formed thereon. The strips provide an alignment function for aligning the liquid crystal molecules while the optically anisotropic material provides a polarization function such that the two functions can be integrated into a single-layered film.Type: GrantFiled: September 21, 2007Date of Patent: November 17, 2009Assignee: Industrial Technology Research InstituteInventors: Yi-Ying Lai, Hui-Lung Kuo, Sheng-Wen Lin, Pin-Chen Chen, Mei-Chih Peng, Yi-Ping Hsieh
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Publication number: 20090273742Abstract: A low color shift polarizer assembly is provided, comprising a cholesteric liquid crystal film with a plurality of very tiny grooves which are irregularly dispersed on a surface of the cholesteric liquid crystal film. The selective reflective wavelength range of the cholesteric liquid crystal film has a long wavelength boundary ?700 nm and a short wavelength boundary ?420 nm. A quarter wavelength retardation plate can be disposed on the cholesteric liquid crystal film to build up the final low color shift polarizer assembly. The polarizer assembly can be combined with a backlight unit and further with a liquid crystal display to provide low color shift at large viewing angles and high brightness.Type: ApplicationFiled: April 30, 2009Publication date: November 5, 2009Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Hui-Lung Kuo, Mei-Chih Peng, Pin-Chen Chen, Ying-Jui Lin
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Publication number: 20090246652Abstract: A color filter having a bi-layer metal grating is formed by nanoimprint lithography. Nanoimprint lithography, a low cost technology, includes two alternatives, i.e., hotembossing nanoimprint lithography and UV-curable nanoimprint lithography. Manufacture steps comprises providing a substrate with a polymer material layer disposed thereon. A plurality of lands and grooves are formed in the polymer material layer, and a first metal layer and a second metal layer are disposed on the surfaces of the lands and grooves, respectively. Finally, a color filter having a bi-layer metal grating is obtained.Type: ApplicationFiled: June 5, 2009Publication date: October 1, 2009Inventors: Pin-Chen CHEN, Hui-Lung KUO, Chih-Ho CHIU, Liang-Bin YU
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Publication number: 20090231706Abstract: A color filter having a bi-layer metal grating is formed by nanoimprint lithography. Nanoimprint lithography, a low cost technology, includes two alternatives, i.e., hot-embossing nanoimprint lithography and UV-curable nanoimprint lithography. Manufacture steps includes providing a substrate with a polymer material layer disposed thereon. A plurality of lands and grooves are formed in the polymer material layer, and a first metal layer and a second metal layer are disposed on the surfaces of the lands and grooves, respectively. Finally, a color filter having a bi-layer metal grating is obtained.Type: ApplicationFiled: May 28, 2009Publication date: September 17, 2009Inventors: Pin-Chen CHEN, Hui-Lung Kuo, Chih-Ho Chiu, Liang-Bin Yu
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Patent number: 7486371Abstract: A method for making an optical device comprises steps of: 1) Providing a substrate, a polymerizable liquid crystal material having a plurality of liquid crystal molecules, and a mold having rows of trenches; 2) Imprinting the polymerizable liquid crystal material on said substrate by the mold; 3) Proceeding a cross-linking process to cure the liquid crystal material so as to have long axes of the liquid crystal molecules be aligned along the rows of trenches. The optical device made from the present method conforms to an A-plate type retardation plate. Moreover, the optical device is capable of aligning liquid crystal molecules adjacent to it.Type: GrantFiled: February 17, 2005Date of Patent: February 3, 2009Assignee: Industrial Technology Research InstituteInventors: Chih-Ho Chiu, Hui-Lung Kuo, Mei-Chih Peng, Yi-Chun Liu, Pin-Chen Chen
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Publication number: 20080158499Abstract: A polarizer-alignment dual function film. The film comprising an optically anisotropic material layer having a plurality of strips integrally formed thereon. The strips provide an alignment function for aligning the liquid crystal molecules while the optically anisotropic material provides a polarization function such that the two functions can be integrated into a single-layered film.Type: ApplicationFiled: September 21, 2007Publication date: July 3, 2008Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Yi-Ying Lai, Hui-Lung Kuo, Sheng-Wen Lin, Pin-Chen Chen, Mei-Chih Peng, Yi-Ping Hsieh
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Publication number: 20060147617Abstract: A color filter having a bi-layer metal grating is formed by nanoimprint lithography. Nanoimprint lithography, a low cost technology, includes two alternatives, i.e., hot-embossing nanoimprint lithography and UV-curable nanoimprint lithography. Manufacture steps comprises providing a substrate with a polymer material layer disposed thereon. A plurality of lands and grooves are formed in the polymer material layer, and a first metal layer and a second metal layer are disposed on the surfaces of the lands and grooves, respectively. Finally, a color filter having a bi-layer metal grating is obtained.Type: ApplicationFiled: July 8, 2005Publication date: July 6, 2006Inventors: Pin-Chen Chen, Hui-Lung Kuo, Chih-Ho Chiu, Liang-Bin Yu
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Publication number: 20060061725Abstract: A method for making an optical device comprises steps of: 1) Providing a substrate, a polymerizable liquid crystal material having a plurality of liquid crystal molecules, and a mold having rows of trenches; 2) Imprinting the polymerizable liquid crystal material on said substrate by the mold; 3) Proceeding a cross-linking process to cure the liquid crystal material so as to have long axes of the liquid crystal molecules be aligned along the rows of trenches. The optical device made from the present method conforms to an A-plate type retardation plate. Moreover, the optical device is capable of aligning liquid crystal molecules adjacent to it.Type: ApplicationFiled: February 17, 2005Publication date: March 23, 2006Inventors: Chih-Ho Chiu, Hui-Lung Kuo, Mei-Chih Peng, Yi-Chun Liu, Pin-Chen Chen
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Publication number: 20050088739Abstract: A wire grid polarizer with double metal layers for the visible spectrum. Parallel dielectric layers having a period (p) of 10˜250 nm and a trench between adjacent dielectric layers overlie a transparent substrate. A first metal layer having a first thickness (d1) of 30˜150 nm is disposed in the trench. A second metal layer having a second thickness (d2) of 30˜150 nm and a width (w) overlies on the top surface of each dielectric layer. The first and second metal layers are separated by a vertical distance (l) of 10˜100 nm. The first thickness (d1) is the same as the second thickness (d2). A ratio of the width (w) to the period (p) is 25˜75%.Type: ApplicationFiled: April 8, 2004Publication date: April 28, 2005Inventors: Chih-Ho Chiu, Hui-Lung Kuo, Yi-Chun Liu, Pin-Chen Chen