Patents by Inventor Pei-Ling Kao
Pei-Ling Kao 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: 12223920Abstract: A backlight control circuit for a surface light emitting device is provided. The backlight control circuit includes a driving circuit. The driving circuit is configured to generate a plurality of driving currents to drive the surface light emitting device such that a plurality of backlight blocks of the surface light emitting device generate a plurality of brightness values. The surface light emitting device is divided into a first backlight area and a second backlight area. The second backlight area is closer to an edge of the surface light emitting device than the first backlight area. A first driving current of the plurality of driving currents is utilized for driving the light source of the first backlight area. A second driving current of the plurality of driving currents is utilized for driving the light source of the second backlight area. The second driving current is greater than the first driving current.Type: GrantFiled: January 2, 2024Date of Patent: February 11, 2025Assignee: Radiant Opto-Electronics CorporationInventors: Li-Fei Wang, Yu-Lin Hsieh, Sheng-Kai Fang, Pei-Ling Kao
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Patent number: 12017817Abstract: A carrier tray and a carrier tray assembly using the same are described. The carrier tray includes a carrying portion, a surrounding wall and at least one recessed structure. The carrying portion has a top surface and a bottom surface opposite to the top surface. The surrounding wall is disposed around the carrying portion. The recessed structure is recessed into the carrying portion. The recessed structure has an opening and a recessed space, and the recessed space is communicated with the outside through the opening. There is a first distance defined by the recessed space along a first direction, and there is a second distance defined by the opening along the first direction. The first distance is greater than the second distance.Type: GrantFiled: April 14, 2022Date of Patent: June 25, 2024Assignees: Radiant(Guangzhou) Opto-Electronics Co., Ltd, Radiant Opto-Electronics CorporationInventors: Hung-Yi Hsu, Hung-Lin Chou, Chao-Hsu Chen, Pei-Ling Kao, Chih-Ming Chan
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Publication number: 20240144890Abstract: A backlight control circuit for a surface light emitting device is provided. The backlight control circuit includes a driving circuit. The driving circuit is configured to generate a plurality of driving currents to drive the surface light emitting device such that a plurality of backlight blocks of the surface light emitting device generate a plurality of brightness values. The surface light emitting device is divided into a first backlight area and a second backlight area. The second backlight area is closer to an edge of the surface light emitting device than the first backlight area. A first driving current of the plurality of driving currents is utilized for driving the light source of the first backlight area. A second driving current of the plurality of driving currents is utilized for driving the light source of the second backlight area. The second driving current is greater than the first driving current.Type: ApplicationFiled: January 2, 2024Publication date: May 2, 2024Applicant: Radiant Opto-Electronics CorporationInventors: Li-Fei Wang, Yu-Lin Hsieh, Sheng-Kai Fang, Pei-Ling Kao
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Publication number: 20240087961Abstract: The embodiments described herein are directed to a method for reducing fin oxidation during the formation of fin isolation regions. The method includes providing a semiconductor substrate with an n-doped region and a p-doped region formed on a top portion of the semiconductor substrate; epitaxially growing a first layer on the p-doped region; epitaxially growing a second layer different from the first layer on the n-doped region; epitaxially growing a third layer on top surfaces of the first and second layers, where the third layer is thinner than the first and second layers. The method further includes etching the first, second, and third layers to form fin structures on the semiconductor substrate and forming an isolation region between the fin structures.Type: ApplicationFiled: November 21, 2023Publication date: March 14, 2024Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: Hung-Ju CHOU, Chih-Chung Chang, Jun-Ming Kuo, Che-Yuan Hsu, Pei-Ling Kao, Chen-Hsuan Liao
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Patent number: 11835819Abstract: A reflective sheet comprises a plurality of perforations for extending a plurality of light-emitting elements therein, the reflective sheet further comprises a central line passing through its center, at least one first dimming area, and at least one second dimming area, and the distance between the at least one first dimming area and the central line is smaller than the distance between the at least one second dimming area and the central line. The light-emitting elements are distributed in the at least one first dimming area and the at least one second dimming area, the at least one first dimming area has a first dimming means, the at least one second dimming area has a second dimming means, the dimension of the first dimming means is different from the dimension of the second dimming means.Type: GrantFiled: October 26, 2022Date of Patent: December 5, 2023Assignee: Radiat Opto-Electronics CorporationInventors: Tzu-Ching Yang, Ya-Yun Hsieh, Pei-Ling Kao, Pei-Fen Hou
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Patent number: 11769461Abstract: A backlight control method for a surface light-emitting device is provided. The backlight control method includes generating a plurality of driving currents to drive the surface light-emitting device such that a plurality of backlight zones generate a plurality of brightness values, measuring the plurality of brightness values of the plurality of backlight zones, calculating a plurality of uniformities of the plurality of backlight zones according to the plurality of brightness values and setting a plurality of target uniformities, generating a plurality of adjustment values according to the plurality of uniformities, the plurality of target uniformities and a plurality of adjustment coefficients corresponding to the plurality of backlight zones, and generating a plurality of adjusted driving currents to drive the plurality of backlight zones according to the plurality of adjustment values and the plurality of driving currents.Type: GrantFiled: August 29, 2022Date of Patent: September 26, 2023Assignee: Radiant Opto-Electronics CorporationInventors: Li-Fei Wang, Yu-Lin Hsieh, Sheng-Kai Fang, Pei-Ling Kao
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Patent number: 11719977Abstract: A light reflecting structure, a backlight module, and a display device are provided. The light reflecting structure is configured to reflect light emitted from plural light emitting units. The light reflecting structure includes a bottom portion and plural sidewall portions. The sidewall portions are erected on the bottom portion. The sidewall portions respectively and correspondingly surround the light-emitting units, and the light emitted from each of the light-emitting units can be directed to a light reflecting surface corresponding to each of the sidewall portions to be reflected outward. A distance P is defined between any two adjacent sidewall portions, and each of the sidewall portions has a height H1. The distance P and the height H1 satisfy a first inequality, and the first inequality is H1<P/2×tan ?. ? represents a complementary angle of a half light-intensity angle of each of the light-emitting units.Type: GrantFiled: January 11, 2022Date of Patent: August 8, 2023Assignees: Radiant(Guangzhou) Opto-Electronics Co., Ltd, Radiant Opto-Electronics CorporationInventors: Hui-Yu Huang, Hsiu-Yi Lai, Shih-Cheng Hsiao, Shu-An Tsai, Pei-Ling Kao, I-Cheng Liu
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Publication number: 20230106059Abstract: A reflective sheet comprises a plurality of perforations for extending a plurality of light-emitting elements therein, the reflective sheet further comprises a central line passing through its center, at least one first dimming area, and at least one second dimming area, and the distance between the at least one first dimming area and the central line is smaller than the distance between the at least one second dimming area and the central line. The light-emitting elements are distributed in the at least one first dimming area and the at least one second dimming area, the at least one first dimming area has a first dimming means, the at least one second dimming area has a second dimming means, the dimension of the first dimming means is different from the dimension of the second dimming means.Type: ApplicationFiled: October 26, 2022Publication date: April 6, 2023Applicant: Radiant Opto-Electronics CorporationInventors: Tzu-Ching YANG, Ya-Yun HSIEH, Pei-Ling KAO, Pei-Fen HOU
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Publication number: 20230077136Abstract: A backlight control method for a surface light-emitting device is provided. The backlight control method includes generating a plurality of driving currents to drive the surface light-emitting device such that a plurality of backlight zones generate a plurality of brightness values, measuring the plurality of brightness values of the plurality of backlight zones, calculating a plurality of uniformities of the plurality of backlight zones according to the plurality of brightness values and setting a plurality of target uniformities, generating a plurality of adjustment values according to the plurality of uniformities, the plurality of target uniformities and a plurality of adjustment coefficients corresponding to the plurality of backlight zones, and generating a plurality of adjusted driving currents to drive the plurality of backlight zones according to the plurality of adjustment values and the plurality of driving currents.Type: ApplicationFiled: August 29, 2022Publication date: March 9, 2023Applicant: Radiant Opto-Electronics CorporationInventors: Li-Fei Wang, Yu-Lin Hsieh, Sheng-Kai Fang, Pei-Ling Kao
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Patent number: 11600528Abstract: A method for forming a semiconductor structure is provided. The method includes forming a stack over a substrate. The stack includes alternating first semiconductor layers and second semiconductor layers. The method also includes forming a polishing stop layer over the stack and a dummy layer over the polishing stop layer, recessing the dummy layer, the polishing stop layer and the stack to form a recess, forming a third semiconductor layer to fill the recess, and planarizing the dummy layer and the third semiconductor layer until the polishing stop layer is exposed. The method also includes patterning the polishing stop layer and the stack into a first fin structure and the third semiconductor layer into a second fin structure, removing the second semiconductor layers of the first fin structure to form nanostructures, and forming a gate stack across the first fin structure and the second fin structure.Type: GrantFiled: May 28, 2020Date of Patent: March 7, 2023Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.Inventors: Pei-Ling Kao, You-Ting Lin, Jiun-Ming Kuo
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Publication number: 20230017945Abstract: A method includes providing a semiconductor substrate having a first region and a second region, epitaxially growing a semiconductor layer above the semiconductor substrate, patterning the semiconductor layer to form a first fin in the first region and a second fin in the second region, and depositing a dielectric material layer on sidewalls of the first and second fins. The method also includes performing an anneal process in driving dopants into the dielectric material layer, such that a dopant concentration in the dielectric material layer in the first region is higher than that in the second region, and performing an etching process to recess the dielectric material layer, thereby exposing the sidewalls of the first and second fins. A top surface of the recessed dielectric material layer in the first region is lower than that in the second region.Type: ApplicationFiled: May 4, 2022Publication date: January 19, 2023Inventors: Pei-Ling Kao, You-Ting Lin, Chih-Chung Chang, Jiun-Ming Kuo, Yuan-Ching Peng
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Publication number: 20220281636Abstract: A carrier tray and a carrier tray assembly using the same are described. The carrier tray includes a carrying portion, a surrounding wall and at least one recessed structure. The carrying portion has a top surface and a bottom surface opposite to the top surface. The surrounding wall is disposed around the carrying portion. The recessed structure is recessed into the carrying portion. The recessed structure has an opening and a recessed space, and the recessed space is communicated with the outside through the opening. There is a first distance defined by the recessed space along a first direction, and there is a second distance defined by the opening along the first direction. The first distance is greater than the second distance.Type: ApplicationFiled: April 14, 2022Publication date: September 8, 2022Inventors: Hung-Yi HSU, Hung-Lin CHOU, Chao-Hsu CHEN, Pei-Ling KAO, Chih-Ming CHAN
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Publication number: 20220137459Abstract: A light reflecting structure, a backlight module, and a display device are provided. The light reflecting structure is configured to reflect light emitted from plural light emitting units. The light reflecting structure includes a bottom portion and plural sidewall portions. The sidewall portions are erected on the bottom portion. The sidewall portions respectively and correspondingly surround the light-emitting units, and the light emitted from each of the light-emitting units can be directed to a light reflecting surface corresponding to each of the sidewall portions to be reflected outward. A distance P is defined between any two adjacent sidewall portions, and each of the sidewall portions has a height H1. The distance P and the height H1 satisfy a first inequality, and the first inequality is H1<P/2×tan ?. ? represents a complementary angle of a half light-intensity angle of each of the light-emitting units.Type: ApplicationFiled: January 11, 2022Publication date: May 5, 2022Inventors: Hui-Yu HUANG, Hsiu-Yi LAI, Shih-Cheng HSIAO, Shu-An TSAI, Pei-Ling KAO, I-Cheng LIU
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Publication number: 20210375686Abstract: A method for forming a semiconductor structure is provided. The method includes forming a stack over a substrate. The stack includes alternating first semiconductor layers and second semiconductor layers. The method also includes forming a polishing stop layer over the stack and a dummy layer over the polishing stop layer, recessing the dummy layer, the polishing stop layer and the stack to form a recess, forming a third semiconductor layer to fill the recess, and planarizing the dummy layer and the third semiconductor layer until the polishing stop layer is exposed. The method also includes patterning the polishing stop layer and the stack into a first fin structure and the third semiconductor layer into a second fin structure, removing the second semiconductor layers of the first fin structure to form nanostructures, and forming a gate stack across the first fin structure and the second fin structure.Type: ApplicationFiled: May 28, 2020Publication date: December 2, 2021Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.Inventors: Pei-Ling KAO, You-Ting LIN, Jiun-Ming KUO
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Patent number: 11106081Abstract: A light-emitting mechanism comprises at least one LED, an optical unit disposed on the LED, and at least one dimming unit disposed on the optical unit and corresponding to the LED. The dimming unit includes a shading component disposed directly above the corresponding LED, the size of the shading component is greater than or equal to the size of the LED below the shading component, and the adjacent shading components are not contact with each other. The invention also provides a backlight module including the light-emitting mechanism.Type: GrantFiled: May 22, 2020Date of Patent: August 31, 2021Assignees: RADIANT(GUANGZHOU) OPTO-ELECTRONICS CO., LTD, RADIANT OPTO-ELECTRONICS CORPORATIONInventors: Jui-Lin Chen, Pin-Hsun Lee, Pei-Ling Kao, Yuan-Jhang Chen, Wei-Hsuan Chen, Chung-Yung Tai
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Publication number: 20200285111Abstract: A light-emitting mechanism comprises at least one LED, an optical unit disposed on the LED, and at least one dimming unit disposed on the optical unit and corresponding to the LED. The dimming unit includes a shading component disposed directly above the corresponding LED, the size of the shading component is greater than or equal to the size of the LED below the shading component, and the adjacent shading components are not contact with each other. The invention also provides a backlight module including the light-emitting mechanism.Type: ApplicationFiled: May 22, 2020Publication date: September 10, 2020Inventors: Jui-Lin CHEN, Pin-Hsun LEE, Pei-Ling KAO, Yuan-Jhang CHEN, Wei-Hsuan CHEN, Chung-Yung TAI
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Patent number: 10459155Abstract: A backlight module and a display device are provided. The backlight module includes a back plate, a carrying member, a light guide plate, at least one optical film and a light source. The carrying member is disposed on the back plate, in which the carrying member includes a first step portion and a second step portion, and the first step portion is elevated higher than the second step portion. The light guide plate is disposed on the back plate. The at least one optical film is disposed above the light guide plate, in which the at least one optical film is held on the second step portion. The light source is disposed on the back plate, in which the light source is disposed adjacent to a light-incident surface of the light guide plate.Type: GrantFiled: May 25, 2017Date of Patent: October 29, 2019Assignees: Radiant Opto-Electronics (Suzhou) Co., Ltd., Radiant Opto-Electronics CorporationInventors: Yu-Ju Lee, Pei-Ling Kao, Pei-Fen Hou
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Patent number: 10060597Abstract: An optical lens, a backlight module and a display device are provided. The optical lens includes a main body, a light-incident surface, a reflecting surface and a light-emitting surface. The main body has a top portion and a bottom portion. The light-incident surface is recessed into the bottom portion of the main body. The reflecting surface is recessed into the top portion of the main body and opposite to the light-incident surface. The light-emitting surface connects the top portion and the bottom portion, in which the light-emitting surface has plural microstructures. Each of the microstructures has a normal line, and directions of the normal lines are different from each other.Type: GrantFiled: December 29, 2015Date of Patent: August 28, 2018Assignees: Radiant Opto-Electronics (Suzhou) Co., Ltd., Radiant Opto-Electronics CorporationInventors: Tsung-Tse Wu, Chun-Hsien Li, Pei-Ling Kao, Yen-Chang Lee
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Publication number: 20170371094Abstract: A backlight module and a display device are provided. The backlight module includes a back plate, a carrying member, a light guide plate, at least one optical film and a light source. The carrying member is disposed on the back plate, in which the carrying member includes a first step portion and a second step portion, and the first step portion is elevated higher than the second step portion. The light guide plate is disposed on the back plate. The at least one optical film is disposed above the light guide plate, in which the at least one optical film is held on the second step portion. The light source is disposed on the back plate, in which the light source is disposed adjacent to a light-incident surface of the light guide plate.Type: ApplicationFiled: May 25, 2017Publication date: December 28, 2017Inventors: Yu-Ju LEE, Pei-Ling KAO, Pei-Fen HOU
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Patent number: 9829175Abstract: An optical lens, a backlight module and a display device are provided. The optical lens includes a main body, a light-incident surface, a recessed surface and a light-emitting surface. The main body has a top portion and a bottom portion. The light-incident surface is recessed into the bottom portion of the main body. The recessed surface is recessed into the top portion of the main body and is opposite to the light-incident surface, in which the recessed surface has a plurality of prism surfaces, and each of the prism surfaces has a normal line, and directions of the normal lines are different from each other. The light-emitting surface connects the top portion and the bottom portion.Type: GrantFiled: December 29, 2015Date of Patent: November 28, 2017Assignees: Radiant Opto-Electronics (Suzhou) Co., Ltd., Radiant Opto-Elecctronics CorporationInventors: Tsung-Tse Wu, Chun-Hsien Li, Pei-Ling Kao, Yen-Chang Lee