Patents by Inventor Wei-Tien Chang
Wei-Tien 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).
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Patent number: 11955338Abstract: A method includes providing a substrate having a surface such that a first hard mask layer is formed over the surface and a second hard mask layer is formed over the first hard mask layer, forming a first pattern in the second hard mask layer, where the first pattern includes a first mandrel oriented lengthwise in a first direction and a second mandrel oriented lengthwise in a second direction different from the first direction, and where the first mandrel has a top surface, a first sidewall, and a second sidewall opposite to the first sidewall, and depositing a material towards the first mandrel and the second mandrel such that a layer of the material is formed on the top surface and the first sidewall but not the second sidewall of the first mandrel.Type: GrantFiled: January 30, 2023Date of Patent: April 9, 2024Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.Inventors: Shih-Chun Huang, Ya-Wen Yeh, Chien-Wen Lai, Wei-Liang Lin, Ya Hui Chang, Yung-Sung Yen, Ru-Gun Liu, Chin-Hsiang Lin, Yu-Tien Shen
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Patent number: 11916017Abstract: An integrated circuit includes a plurality of horizontal conducting lines in a first connection layer, a plurality of gate-conductors below the first connection layer, a plurality of terminal-conductors below the first connection layer, and a via-connector directly connecting one of the horizontal conducting lines with one of the gate-conductors or with one of the terminal-conductors. The integrated circuit also includes a plurality of vertical conducting lines in a second connection layer above the first connection layer, and a plurality of pin-connectors for a circuit cell. A first pin-connector is directly connected between a first horizontal conducting line and a first vertical conducting line atop one of the gate-conductors. A second pin-connector is directly connected between a second horizontal conducting line and a second vertical conducting line atop a vertical boundary of the circuit cell.Type: GrantFiled: August 26, 2021Date of Patent: February 27, 2024Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: Wei-Ling Chang, Chih-Liang Chen, Chia-Tien Wu, Guo-Huei Wu
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Patent number: 9477349Abstract: A touch panel including a light guide plate, a plurality of light sources and a plurality of detectors is provided. The light guide plate has a top surface, a bottom surface, a plurality of side surfaces and a plurality of light incident surfaces. The light sources are disposed at the light incident surfaces of the light guide plate, and the light sources have a photocell total reflection angle (?) and a photocell vertical divergence angle (?) corresponding to the light incident surfaces of the light guide plate, wherein ?<?<60°, ? is a critical angle of the total reflection angle of the light guide plate, and ?<50°. The detectors are disposed corresponding to the light sources so as to receive photocell signals from the light sources.Type: GrantFiled: July 1, 2010Date of Patent: October 25, 2016Assignee: Au Optronics CorporationInventors: Chiung-Han Wang, Shau-Yu Tsai, Chih-Wei Chien, Wei-Tien Chang
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Patent number: 9057806Abstract: A light source includes a carrier, a plurality of solid-state light-emitting devices, a light-incoupling component, a first reflector, and a plurality of second reflectors. The solid-state light-emitting devices and the light-incoupling component are configured on the carrier. The light-incoupling component has a bottom surface, a top surface, a plurality of side surfaces adjoining the bottom surface and the top surface, and a through hole extending from the bottom surface to the top surface. The solid-state light-emitting devices are located in the through hole. The first reflector covers the through hole. The second reflectors are configured on the side surfaces. Light emitted from the solid-state light-emitting devices enters the light-incoupling component via a sidewall of the through hole and leaves the light-incoupling component via the top surface thereof.Type: GrantFiled: August 15, 2011Date of Patent: June 16, 2015Assignee: Au Optronics CorporationInventors: Chen-Hung Ho, Wei-Tien Chang, Shau-Yu Tsai
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Patent number: 9028072Abstract: A laser projection system comprising a laser light and a human body detection module is disclosed. The laser light source emits a laser light. The human body detection module detects a reflective light of the laser light irradiated on an object. The human body detection module determines whether the object is a human according to a relationship between several reflectivity indexes of the reflective light. If the relationship corresponds to predefined situation, the human body detection module reduces a laser output intensity of the laser light.Type: GrantFiled: March 17, 2013Date of Patent: May 12, 2015Assignee: Lite-On Technology CorporationInventors: Wei-Tien Chang, Fu-Ji Tsai, Chih-Chien Lu, Wei-Chih Lin
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Patent number: 9019246Abstract: The present disclosure provides an electronic writing system including a holder, a light guide plate, at least one light source, and at least one optical film. The light guide plate is disposed in the holder, and the light guide plate has at least one light entrance surface and a light exit surface. The light source is disposed on the light entrance surface of the light guide plate, and is used for generating a light. The light enters the light guide plate through the light entrance surface, and the light emits out of the light guide plate from the light exit surface. The optical film covers the light exit surface of the light guide plate.Type: GrantFiled: November 9, 2012Date of Patent: April 28, 2015Assignee: AU Optronics Corp.Inventors: Wei-Tien Chang, Shau-Yu Tsai
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Patent number: 8894265Abstract: The light guide plate includes a light guide plate body and a first medium, wherein the refractive index of the light guide plate body is greater than the refractive index of the first medium. The light guide plate body includes a plurality of gaps parallel with each other, wherein the first medium is disposed in those gaps. The light guide plate body further includes a light entrance end, wherein the gaps extend in directions both away and toward the light entrance end. Furthermore, an active region is defined on the light guide plate body and the gaps are located in the active region.Type: GrantFiled: October 14, 2011Date of Patent: November 25, 2014Assignee: AU Optronics CorporationInventors: Wei-Tien Chang, Kuang-Tao Sung
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Publication number: 20140118703Abstract: A laser projection system is provided. The laser projection system comprises a laser light source, an optical element and a lens module. The laser light source provides a laser beam. The optical element has a first surface and a second surface. The laser beam is totally reflected by the first surface to pass through the second surface. The lens module is disposed beside the second surface of the optical element for reflecting the laser beam passing through the second surface, such that the reflected laser beam is projected on a projection screen.Type: ApplicationFiled: June 21, 2013Publication date: May 1, 2014Inventors: Wei-Tien CHANG, Chih-Chien LU
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Patent number: 8696188Abstract: A method for manufacturing a light guide plate includes the following steps. At least one dot area and at least one non-dot area are defined on a mask. A lithography and etching process using the mask is performed a mold to form at least one recess having a rough surface on the mold and leave at least one non-etched microstructure on the mold. The recess corresponds to the non-dot area, and the non-etched microstructure corresponds to the dot area. An injection molding process using the mold is performed to form the light guide plate. The light guide plate has at least one protrusion having a rough surface on the light guide plate and at least one indented microstructure in the light guide plate. The protrusion corresponds to the recess, and the indented microstructure corresponds to the non-etched microstructure.Type: GrantFiled: December 16, 2011Date of Patent: April 15, 2014Assignee: Au Optronics CorporationInventors: Wei-Tien Chang, Chih-Chin Hsieh
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Publication number: 20140036235Abstract: A laser projection system comprising a laser light and a human body detection module is disclosed. The laser light source emits a laser light. The human body detection module detects a reflective light of the laser light irradiated on an object. The human body detection module determines whether the object is a human according to a relationship between several reflectivity indexes of the reflective light. If the relationship corresponds to predefined situation, the human body detection module reduces a laser output intensity of the laser light.Type: ApplicationFiled: March 17, 2013Publication date: February 6, 2014Applicant: LITE-ON IT CORPORATIONInventors: Wei-Tien CHANG, Fu-Ji Tsai, Chih-Chien Lu, Wei-Chih Lin
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Patent number: 8405797Abstract: A light guide plate includes an incident face, a bottom surface, a main reflective structure and an auxiliary reflective structure. The bottom surface is connected to the incident face. The main reflective structure is disposed on the bottom surface and has a first and a second inclined surface. The auxiliary reflective structure is disposed on the bottom surface and has a third and a fourth inclined surface. The auxiliary reflective structure and the main reflective structure have an interval therebetween, in which the interval ranges between 0.2 micrometer and 0.5 micrometer, and a bottom width of the auxiliary reflective structure on the bottom surface is smaller than a bottom width of the main reflective structure on the bottom surface. A liquid crystal display is also disclosed herein.Type: GrantFiled: May 17, 2012Date of Patent: March 26, 2013Assignee: AU Optronics CorporationInventors: Wei-Tien Chang, Jing-Huan Liao
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Patent number: 8384849Abstract: A light guide plate includes a main body, a main reflective structure and an auxiliary reflective structure. The main reflective structure has a first included angle and a second included angle with respect to a bottom surface of the main body. The auxiliary reflective structure is adjacent to the main reflective structure and has a third included angle and a fourth included angle with respect to the bottom surface. A height difference between the main reflective structure and the auxiliary reflective structure ranges between 1.5 micrometer and 5 micrometer, and a bottom width of the auxiliary reflective structure on the bottom surface is smaller than a bottom width of the main reflective structure on the bottom surface. A liquid crystal display is also disclosed herein.Type: GrantFiled: May 17, 2012Date of Patent: February 26, 2013Assignee: AU Optronics CorporationInventors: Wei-Tien Chang, Jing-Huan Liao
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Publication number: 20120229731Abstract: A light guide plate includes an incident face, a bottom surface, a main reflective structure and an auxiliary reflective structure. The bottom surface is connected to the incident face. The main reflective structure is disposed on the bottom surface and has a first and a second inclined surface. The auxiliary reflective structure is disposed on the bottom surface and has a third and a fourth inclined surface. The auxiliary reflective structure and the main reflective structure have an interval therebetween, in which the interval ranges between 0.2 micrometer and 0.5 micrometer, and a bottom width of the auxiliary reflective structure on the bottom surface is smaller than a bottom width of the main reflective structure on the bottom surface. A liquid crystal display is also disclosed herein.Type: ApplicationFiled: May 17, 2012Publication date: September 13, 2012Applicant: AU OPTRONICS CORPORATIONInventors: Wei-Tien Chang, Jing-Huan Liao
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Publication number: 20120224123Abstract: A light guide plate includes a main body, a main reflective structure and an auxiliary reflective structure. The main reflective structure has a first included angle and a second included angle with respect to a bottom surface of the main body. The auxiliary reflective structure is adjacent to the main reflective structure and has a third included angle and a fourth included angle with respect to the bottom surface. A height difference between the main reflective structure and the auxiliary reflective structure ranges between 1.5 micrometer and 5 micrometer, and a bottom width of the auxiliary reflective structure on the bottom surface is smaller than a bottom width of the main reflective structure on the bottom surface. A liquid crystal display is also disclosed herein.Type: ApplicationFiled: May 17, 2012Publication date: September 6, 2012Applicant: AU OPTRONICS CORPORATIONInventors: Wei-Tien Chang, Jing-Huan Liao
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Publication number: 20120170314Abstract: A local dimming side-lighting light guide plate and a local dimming side-lighting backlight module are disclosed. The light guide plate includes a light guide plate body and a first medium, wherein the refractive index of the light guide plate body is greater than the refractive index of the first medium. The light guide plate body includes a plurality of gaps parallel with each other, wherein the first medium is disposed in those gaps. The light guide plate body further includes a light entrance end, wherein the gaps extend in directions both away and toward the light entrance end. Furthermore, an active region is defined on the light guide plate body and the gaps are located in the active region.Type: ApplicationFiled: October 14, 2011Publication date: July 5, 2012Applicant: AU OPTRONICS CORPORATIONInventors: Wei-Tien Chang, Kuang-Tao Sung
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Publication number: 20120163033Abstract: A method for manufacturing a light guide plate includes the following steps. At least one dot area and at least one non-dot area are defined on a mask. A lithography and etching process using the mask is performed a mold to form at least one recess having a rough surface on the mold and leave at least one non-etched microstructure on the mold. The recess corresponds to the non-dot area, and the non-etched microstructure corresponds to the dot area. An injection molding process using the mold is performed to form the light guide plate. The light guide plate has at least one protrusion having a rough surface on the light guide plate and at least one indented microstructure in the light guide plate. The protrusion corresponds to the recess, and the indented microstructure corresponds to the non-etched microstructure.Type: ApplicationFiled: December 16, 2011Publication date: June 28, 2012Applicant: AU Optronics CorporationInventors: Wei-Tien Chang, Chih-Chin Hsieh
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Patent number: 8203667Abstract: A light guide plate includes an incident face, a bottom surface, a main reflective structure and an auxiliary reflective structure. The bottom surface is connected to the incident face. The main reflective structure is disposed on the bottom surface and has a first and a second inclined surface. The auxiliary reflective structure is disposed on the bottom surface and has a third and a fourth inclined surface. The auxiliary reflective structure and the main reflective structure have an interval therebetween, in which the interval ranges between 0.2 micrometer and 0.5 micrometer, and a bottom width of the auxiliary reflective structure on the bottom surface is smaller than a bottom width of the main reflective structure on the bottom surface. A liquid crystal display is also disclosed herein.Type: GrantFiled: March 12, 2009Date of Patent: June 19, 2012Assignee: Au Optronics CorporationInventors: Wei-Tien Chang, Jing-Huan Liao
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Patent number: 8197103Abstract: A diffusion plate for use with a lighting module is provided. The diffusion plate includes a substrate, a plurality of circular diffusion structures, and at least one star diffusion structure. The circular diffusion structures are disposed on one face of the substrate in array. Each circular diffusion structure includes a plurality of first partial reflecting units. The first partial reflecting units are disposed on the substrate in circular distribution. The outer arcs of adjacent circular diffusion structures together form a star region. The at least one star diffusion structure includes a plurality of second partial reflecting units. The second partial reflecting units are disposed in the star region on the face of the substrate, wherein the second partial reflecting units are distributed in star distribution.Type: GrantFiled: December 27, 2010Date of Patent: June 12, 2012Assignee: AU Optronics CorporationInventors: Wei-Tien Chang, Shau-Yu Tsai
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Publication number: 20120113620Abstract: A light source includes a carrier, a plurality of solid-state light-emitting devices, a light-incoupling component, a first reflector, and a plurality of second reflectors. The solid-state light-emitting devices and the light-incoupling component are configured on the carrier. The light-incoupling component has a bottom surface, a top surface, a plurality of side surfaces adjoining the bottom surface and the top surface, and a through hole extending from the bottom surface to the top surface. The solid-state light-emitting devices are located in the through hole. The first reflector covers the through hole. The second reflectors are configured on the side surfaces. Light emitted from the solid-state light-emitting devices enters the light-incoupling component via a sidewall of the through hole and leaves the light-incoupling component via the top surface thereof.Type: ApplicationFiled: August 15, 2011Publication date: May 10, 2012Applicant: AU OPTRONICS CORPORATIONInventors: Chen-Hung Ho, Wei-Tien Chang, Shau-Yu Tsai
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Publication number: 20110157889Abstract: A diffusion plate for use with a lighting module is provided. The diffusion plate includes a substrate, a plurality of circular diffusion structures, and at least one star diffusion structure. The circular diffusion structures are disposed on one face of the substrate in array. Each circular diffusion structure includes a plurality of first partial reflecting units. The first partial reflecting units are disposed on the substrate in circular distribution. The outer arcs of adjacent circular diffusion structures together form a star region. The at least one star diffusion structure includes a plurality of second partial reflecting units. The second partial reflecting units are disposed in the star region on the face of the substrate, wherein the second partial reflecting units are distributed in star distribution.Type: ApplicationFiled: December 27, 2010Publication date: June 30, 2011Applicant: AU OPTRONICS CORPORATIONInventors: Wei-Tien Chang, Shau-Yu Tsai