Patents Assigned to Efun Technology Co., Ltd
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Patent number: 10156343Abstract: An optical film includes a blocking layer, and a main body unit including first and second base layers, a working layer and a side surface. The first base layer has a light incident surface and a first surface opposite to the light incident surface. The second base layer has a second surface facing the first surface and a light exiting surface opposite to the second surface. The working layer is interconnected between the first and second surfaces, and includes a plurality of quantum dots, which can be excited by a first light incident on the light incident surface to emit a second light. The side surface surrounds the light incident, first, second and light exiting surfaces. The blocking layer is bonded to the side surface.Type: GrantFiled: August 29, 2016Date of Patent: December 18, 2018Assignees: EFUN TECHNOLOGY CO., LTD., SIC TECHNOLOGY CO., LTD.Inventors: Shih-Chieh Tang, Ying-Tsung Lu, Shien-Tsung Wu, Wan-Shan Lee
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Patent number: 8525380Abstract: A vacuum mechanical rotation-transmitting apparatus is disposed on a hollow member that defines a vacuum chamber. The apparatus includes an input shaft assembly, an outer shaft assembly extending into the input shaft assembly and the vacuum chamber, a spacer member disposed between the input and output shaft assemblies, a plurality of first magnetic units disposed on the input shaft assembly, and a plurality of second magnetic units disposed on the output shaft assembly. A magnetic attractive force is produced between the first and second magnetic units to allow for co-rotation of the output shaft assembly with the input shaft assembly.Type: GrantFiled: September 2, 2010Date of Patent: September 3, 2013Assignee: Efun Technology Co., Ltd.Inventor: Christian Chang
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Patent number: 7944614Abstract: A light converging sheet unit includes first and second light converging sheets stacked one on top of the other. The first light converging sheet has first light converging micro-prism structures with a first average peak-to-peak distance between adjacent ones of the first light converging micro-prism structures. The second light converging sheet has second light converging micro-prism structures with a second average peak-to-peak distance between adjacent ones of the second light converging micro-prism structures. At least one of the first and second average peak-to-peak distances is not larger than 35 ?m.Type: GrantFiled: November 19, 2009Date of Patent: May 17, 2011Assignee: EFUN Technology Co., Ltd.Inventors: Cing-Cin Wu, Tsung-Hsun Wu
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Publication number: 20100123953Abstract: A light converging sheet unit includes first and second light converging sheets stacked one on top of the other. The first light converging sheet has first light converging micro-prism structures with a first average peak-to-peak distance between adjacent ones of the first light converging micro-prism structures. The second light converging sheet has second light converging micro-prism structures with a second average peak-to-peak distance between adjacent ones of the second light converging micro-prism structures. At least one of the first and second average peak-to-peak distances is not larger than 35 ?m.Type: ApplicationFiled: November 19, 2009Publication date: May 20, 2010Applicant: EFUN TECHNOLOGY CO., LTD.Inventors: Cing-Cin Wu, Tsung-Hsun Wu
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Patent number: 7448776Abstract: A brightness enhancement film includes a substrate and a plurality of curved prism units. The curved prism units are extended in parallel and mounted to a surface of the substrate. Each of the curved prism units includes at least one meandering surface to provide with changes in curvature. Thus, the meandering surface of the curved prism unit is able to refract incident light in two dimensions with respect to the substrate that may enhance entire refractive efficiency in two dimensions.Type: GrantFiled: July 2, 2004Date of Patent: November 11, 2008Assignee: Efun Technology Co., Ltd.Inventor: Shih-Chieh Tang
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Patent number: 7269327Abstract: A brightness enhancement film includes a light-refracting microstructure layer, a substrate and a reinforcing layer. The substrate has a first surface and a second surface opposite thereto. The light-refracting microstructure layer is arranged on the first surface of the substrate and is so configured to vary in curvatures for refracting light. The reinforcing layer is arranged on the second surface of the substrate and is so configured to form a relatively high degree of hardness. Accordingly, the reinforcing layer can prevent warpage and abrasion of the brightness enhancement film.Type: GrantFiled: July 19, 2005Date of Patent: September 11, 2007Assignee: Efun Technology Co., LtdInventor: Shih-Chieh Tang
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Publication number: 20070121227Abstract: A brightness enhancement film includes a substrate, a plurality of curved prism units and a plurality of light scattering particles. The curved prism units are extended in parallel and formed on a first surface of the substrate. Each of the curved prism units includes at least one meandering surface to provide with changes in curvature. Thus, the meandering surface of the curved prism unit is able to refract incident light in two dimensions with respect to the substrate that may enhance entire light-collecting efficiency in two dimensions. The light scattering particles are disposed in the curved prism units.Type: ApplicationFiled: January 17, 2007Publication date: May 31, 2007Applicant: EFUN TECHNOLOGY CO., LTD.Inventors: Jing-Wei Wang, Jian-Zhi Chen, Ching-Chin Wu, Shih-Chieh Tang
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Publication number: 20070115569Abstract: A brightness enhancement film includes a substrate, a plurality of curved prism units and a light-diffusing microstructure layer. The curved prism units are extended in parallel and formed on a first surface of the substrate. Each of the curved prism units includes at least one meandering surface to provide with changes in curvature. Thus, the meandering surface of the curved prism unit is able to refract incident light in two dimensions with respect to the substrate that may enhance entire light-collecting efficiency in two dimensions. The light-diffusing microstructure layer is formed on a second surface of the substrate.Type: ApplicationFiled: January 17, 2007Publication date: May 24, 2007Applicant: EFUN TECHNOLOGY CO., LTD.Inventors: Shih-Chieh Tang, Ying-Tsung Lu, Kai-Cheng Chang, Ching-Chin Wu
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Publication number: 20070058920Abstract: A brightness enhancement film having a light-guiding structure includes a substrate, which has a light-guiding layer and a plurality of light-refracting microstructures. The substrate has a light incident surface and a light emission surface opposite thereto. The light-refracting microstructures are arranged on the light incident surface of the substrate, and provided for varying surface curvatures to refract incident light. The light-guiding layer is arranged on the light emission surface of the substrate, and provided for guiding refracted light to generate homogeneous light to emit therefrom.Type: ApplicationFiled: September 20, 2005Publication date: March 15, 2007Applicant: EFUN TECHNOLOGY CO., LTD.Inventor: Shih-Chieh Tang
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Publication number: 20070002471Abstract: A brightness enhancement film includes a light-refracting microstructure layer, a substrate and a reinforcing layer. The substrate has a first surface and a second surface opposite thereto. The light-refracting microstructure layer is arranged on the first surface of the substrate, and so configured to vary in curvatures for refracting light. The reinforcing layer is arranged on the second surface of the substrate, and so configured to form a relatively high degree of hardness. Accordingly, the reinforcing layer can prevent from warpage and abrasion of the brightness enhancement film.Type: ApplicationFiled: July 19, 2005Publication date: January 4, 2007Applicant: EFUN TECHNOLOGY CO., LTD.Inventor: Shih-Chieh Tang