Patents by Inventor Hsin Wen Chang
Hsin Wen 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: 12372705Abstract: A light guide plate includes a light incident surface, a first surface connected to the light incident surface, and a plurality of optical microstructures disposed on the first surface. Each optical microstructure has a first cross-sectional profile along a first direction and a second cross-sectional profile along a second direction perpendicular to the first direction. The first cross-sectional profile is different from the second cross-sectional profile. The optical microstructures include a plurality of first optical microstructures and a plurality of second optical microstructures. The second cross-sectional profile of each first optical microstructure is different from the second cross-sectional profile of each second optical microstructure. A light source module including the light guide plate projects light into the light incident surface.Type: GrantFiled: March 8, 2024Date of Patent: July 29, 2025Assignee: CM Visual Technology CorporationInventors: Tsang-Chi Wang, Hsin Wen Chang, Hung Yu Lin, Yung Pin Chen
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Patent number: 12372696Abstract: An optical film includes a film body and plural micro-structures randomly distributed over the film body. The micro-structures respectively correspond to a plurality of regions. Each of the regions is defined by a same number of auxiliary micro-structures of the micro-structures around a main micro-structure of the micro-structures, and a ratio of an area of a minimum one of the regions to an area of a maximum one of the regions is greater than 0.5 and less than 1.Type: GrantFiled: March 30, 2022Date of Patent: July 29, 2025Assignee: CM VISUAL TECHNOLOGY CORPORATIONInventor: Hsin Wen Chang
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Patent number: 12339441Abstract: The optical film includes a main body and an optical structure. The optical structure protrudes from a surface of the main body. The optical structure includes a first side surface and a second side surface. A first connecting line and a first angle less than 90 degrees are formed between the first side surface and the surface of the main body. A second connecting line and a second angle less than 90 degrees are formed between the second side surface and the surface of the main body. When viewed from a normal vector of the surface of the main body, a third angle is formed between an extension line of the first connecting line and an extension line of the second connecting line, and the third angle is greater than 0 degree and less than 90 degrees.Type: GrantFiled: May 12, 2021Date of Patent: June 24, 2025Assignee: CM VISUAL TECHNOLOGY CORPORATIONInventors: Tsang-Chi Wang, Hsin-Wen Chang
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Publication number: 20250020852Abstract: A light guide plate includes a light incident surface, a first surface connected to the light incident surface, and a plurality of optical microstructures disposed on the first surface. Each optical microstructure has a first cross-sectional profile along a first direction and a second cross-sectional profile along a second direction perpendicular to the first direction. The first cross-sectional profile is different from the second cross-sectional profile. The optical microstructures include a plurality of first optical microstructures and a plurality of second optical microstructures. The second cross-sectional profile of each first optical microstructure is different from the second cross-sectional profile of each second optical microstructure. A light source module including the light guide plate projects light into the light incident surface.Type: ApplicationFiled: March 8, 2024Publication date: January 16, 2025Applicant: CM Visual Technology CorporationInventors: Tsang-Chi Wang, Hsin Wen Chang, Hung Yu Lin, Yung Pin Chen
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Publication number: 20230314673Abstract: An optical film includes a film body and plural micro-structures randomly distributed over the film body. The micro-structures respectively correspond to a plurality of regions. Each of the regions is defined by a same number of auxiliary micro-structures of the micro-structures around a main micro-structure of the micro-structures, and a ratio of an area of a minimum one of the regions to an area of a maximum one of the regions is greater than 50% and less than 100%.Type: ApplicationFiled: March 30, 2022Publication date: October 5, 2023Inventor: Hsin Wen CHANG
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Publication number: 20230118595Abstract: An optical film and a display device using the same are provided. The optical film includes a substrate, a first optical layer, a plurality of second optical layers and a third optical layer. The first optical layer is formed on the substrate, in which the first optical layer has an optical structure having a plurality of recesses. The second optical layers formed in the recesses of the optical structure of the first optical layer. The third optical layer covers the first optical layer and the second optical layers. The display device includes a displayer and the optical film, in which the optical film is disposed on the displayer.Type: ApplicationFiled: October 15, 2021Publication date: April 20, 2023Inventor: Hsin Wen CHANG
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Publication number: 20220365341Abstract: The optical film includes a main body and an optical structure. The optical structure protrudes from a surface of the main body. The optical structure includes a first side surface and a second side surface. A first connecting line and a first angle less than 90 degrees are formed between the first side surface and the surface of the main body. A second connecting line and a second angle less than 90 degrees are formed between the second side surface and the surface of the main body. When viewed from a normal vector of the surface of the main body, a third angle is formed between an extension line of the first connecting line and an extension line of the second connecting line, and the third angle is greater than 0 degree and less than 90 degrees.Type: ApplicationFiled: May 12, 2021Publication date: November 17, 2022Inventors: Tsang-Chi WANG, Hsin-Wen CHANG
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Patent number: 11320662Abstract: A light deflection film and a display device using the same are provided. The display device includes a display panel and a light deflection film. The light deflection film is disposed on the display panel and includes a first layer, a second layer and a light deflection structure formed at an interface between the first layer and the second layer. The first layer has a first refractive index. The second layer is formed on the first layer and has a second refractive index. The first layer of the light deflection film is located between the second layer and the display panel, and the first refractive index is larger than the second refractive index.Type: GrantFiled: March 19, 2019Date of Patent: May 3, 2022Assignee: CM VISUAL TECHNOLOGY CORPORATIONInventors: Hsin-Wen Chang, Kuo-Chang Yu
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Patent number: 10996464Abstract: An optical element including a first pattern is provided. The first pattern includes a film and a plurality of light deflection regions arranged on the film, wherein each light deflection region comprises a diffraction structure having two or more than two amplitudes.Type: GrantFiled: July 20, 2020Date of Patent: May 4, 2021Assignee: CM VISUAL TECHNOLOGY CORPORATIONInventors: Hsin-Wen Chang, Hung-Yu Lin, Yung-Pin Chen
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Patent number: 10886405Abstract: A semiconductor structure includes a first source/drain region, a second source/drain region, a channel doping region, a gate structure, a first well and a second well. The second source/drain region is disposed opposite to the first source/drain region. The channel doping region is disposed between the first source/drain region and the second source/drain region. The gate structure is disposed on the channel doping region. The first well has a first portion disposed under the first source/drain region. The second well is disposed opposite to the first well and separated from the second source/drain region. The first source/drain region, the second source/drain region and the channel doping region have a first conductive type. The first well and the second well have a second conductive type different from the first conductive type.Type: GrantFiled: December 7, 2016Date of Patent: January 5, 2021Assignee: MACRONIX INTERNATIONAL CO., LTD.Inventors: Yung-Hsiang Chen, Yao-Wen Chang, Chu-Yung Liu, I-Chen Yang, Hsin-Wen Chang
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Publication number: 20200348513Abstract: An optical element including a first pattern is provided. The first pattern includes a film and a plurality of light deflection regions arranged on the film, wherein each light deflection region comprises a diffraction structure having two or more than two amplitudes.Type: ApplicationFiled: July 20, 2020Publication date: November 5, 2020Inventors: Hsin-Wen CHANG, Hung-Yu LIN, Yung-Pin CHEN
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Publication number: 20200310012Abstract: The invention relates to an optical element disposed on a light source. The optical element includes a first medium, a second medium and a light deflecting structure. The second medium is formed on the first medium. The light deflecting structure is formed on the interface between the first medium and the second medium. The relationship between the optical element and the light emitted by the light source satisfies the formula: 0<|WB?WA|/Wref<10, wherein WA is an image broadening width obtained under the circumstances of the light passing through the optical element with the first medium as the light incident side; WB is an image broadening width obtained under the circumstances of the light passing through the optical element with the second medium as the light incident side; and Wref is a width obtained under the circumstances of the light not passing through the optical element.Type: ApplicationFiled: March 24, 2020Publication date: October 1, 2020Inventors: Hsin-Wen CHANG, Kuo-Chang YU
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Patent number: 10746986Abstract: An optical element including a first pattern is provided. The first pattern includes a plurality of light deflection regions arranged along at least one set of first tracks in a first direction, and each first track is a waveform track having a first period T1 and a first amplitude A1.Type: GrantFiled: April 27, 2018Date of Patent: August 18, 2020Assignee: CM VISUAL TECHNOLOGY CORPORATIONInventors: Hsin-Wen Chang, Hung-Yu Lin, Yung-Pin Chen
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Publication number: 20190324282Abstract: A light deflection film and a display device using the same are provided. The display device includes a display panel and a light deflection film. The light deflection film is disposed on the display panel and includes a first layer, a second layer and a light deflection structure formed at an interface between the first layer and the second layer. The first layer has a first refractive index. The second layer is formed on the first layer and has a second refractive index. The first layer of the light deflection film is located between the second layer and the display panel, and the first refractive index is larger than the second refractive index.Type: ApplicationFiled: March 19, 2019Publication date: October 24, 2019Inventors: Hsin-Wen CHANG, Kuo-Chang YU
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Publication number: 20180321487Abstract: An optical element including a first pattern is provided. The first pattern includes a plurality of light deflection regions arranged along at least one set of first tracks in a first direction, and each first track is a waveform track having a first period T1 and a first amplitude A1.Type: ApplicationFiled: April 27, 2018Publication date: November 8, 2018Inventors: Hsin-Wen CHANG, Hung-Yu LIN, Yung-Pin CHEN
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Publication number: 20180158950Abstract: A semiconductor structure includes a first source/drain region, a second source/drain region, a channel doping region, a gate structure, a first well and a second well. The second source/drain region is disposed opposite to the first source/drain region. The channel doping region is disposed between the first source/drain region and the second source/drain region. The gate structure is disposed on the channel doping region. The first well has a first portion disposed under the first source/drain region. The second well is disposed opposite to the first well and separated from the second source/drain region. The first source/drain region, the second source/drain region and the channel doping region have a first conductive type. The first well and the second well have a second conductive type different from the first conductive type.Type: ApplicationFiled: December 7, 2016Publication date: June 7, 2018Inventors: Yung-Hsiang Chen, Yao-Wen Chang, Chu-Yung Liu, I-Chen Yang, Hsin-Wen Chang
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Patent number: 8736787Abstract: A liquid crystal panel module, a backlight module and a liquid crystal display (LCD) are provided. The liquid crystal panel module includes a liquid crystal panel and a diffraction grating layer. The liquid crystal panel has a plurality of pixels. The diffraction grating layer is disposed on the liquid crystal panel, and a maximum period of a grating of the diffraction grating layer is smaller than 1/10 of a size of the pixels. The backlight module includes a light guide plate, a light emitting element and a diffraction grating film. A light provided by the light emitting element emits from a light emitting surface of the light guide plate and is bended towards the light emitting element after passing through the diffraction grating film. The liquid crystal panel module and the backlight module can be applied to the LCD together or individually.Type: GrantFiled: January 6, 2011Date of Patent: May 27, 2014Assignees: Chimei Innolux Corporation, Chi Mei Corporation, Klaser Technology, Inc.Inventors: Wang-Yang Li, Hung-Yu Lin, Hsin-Wen Chang, Yi-Pan Liang, Chien-Chih Wang, Wai-Hon Lee, Hua-Fang Tsai
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Patent number: 8730432Abstract: An optical film is provided. The optical film includes a substrate, a first transmission medium, second transmission medium, and a reflective polarizing film. The first transmission medium is disposed at the front surface of the substrate and includes a plurality of embossed microlenses. The second transmission medium is disposed at the rear surface of the substrate and comprises a plurality of V-shaped prisms. The reflective polarizing film is disposed at the front surface of the first transmission medium. The substrate, the first transmission medium, and the second transmission medium are bounded to each other to form a unitary sheet.Type: GrantFiled: May 30, 2012Date of Patent: May 20, 2014Assignees: Innocom Technology (Shenzhen) Co. Ltd., Chimei Innolux CorporationInventors: Tzu-Chang Wang, Li-Wei Mao, Hsin-Wen Chang, Yen-Liang Chen
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Patent number: 8416366Abstract: A liquid crystal display (LCD) and a back light module are provided. The back light module includes a light guide plate (LGP) and a plurality of light-emitting devices. The LGP has a plurality of partitioning grooves, a bottom surface, a light exiting surface, a first side and a second side. The bottom surface is opposite to the light exiting surface. The first side and the second side are located at the two opposite side surfaces of the LGP. The extension direction of each of the partitioning grooves extends from the first side towards the second side. Each of the partitioning grooves has an opening and the opening is located at the bottom surface. The plurality of light-emitting devices are disposed at least one of the first side and the second side. The liquid crystal panel of the LCD is disposed at the light exiting surface.Type: GrantFiled: February 25, 2011Date of Patent: April 9, 2013Assignee: Chimei Innolux CorporationInventors: Hsin-Wen Chang, Chi-Liang Chang, Yung-Kun Chen
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Publication number: 20120314157Abstract: An optical film is provided. The optical film includes a substrate, a reflective polarizer, and a first transmission medium. The reflective polarizer is disposed at the front surface of the substrate. The first transmission medium is disposed at the rear surface of the substrate and comprises a plurality of V-shaped prisms. The substrate, the reflective polarizer, and the first transmission medium are bounded to each other to form a unitary sheet.Type: ApplicationFiled: May 31, 2012Publication date: December 13, 2012Applicants: CHIMEI INNOLUX CORPORATION, INNOCOM TECHNOLOGY (SHENZHEN) CO., LTD.Inventors: Tzu-Chang WANG, Li-Wei MAO, Hsin-Wen CHANG