Patents by Inventor Shih-Kai Cheng
Shih-Kai Cheng 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: 7479298Abstract: A method for forming an optical element includes: preparing an optical substrate; coating a curable resin on the optical substrate so as to form a curable resin layer on the optical substrate; embossing the curable resin layer so as to form a plurality of adjoining pointed micro-protrusions, each of which has a tip end; heating the pointed micro-protrusions of the curable resin layer in such a manner that the tip end of each of the pointed micro-protrusions is softened and is spread over the remainder of the respective one of the pointed micro-protrusions so as to form the adjoining pointed micro-protrusions into adjoining rounded micro-protrusions which cooperatively form a continuous curved surface; and curing the curable resin layer.Type: GrantFiled: August 31, 2006Date of Patent: January 20, 2009Assignee: Chi Lin Technology Co., Ltd.Inventors: Mao-Song Lee, Hsi-Hsin Shih, Shih-Kai Cheng
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Patent number: 7459211Abstract: Disclosed is an anti-UV reflector for distributing a light from a point light source or a linear light uniformly over a target. The anti-UV reflector mainly includes a light reflecting polymeric substrate and a protecting layer of anti-UV material provided on the polycarbonate substrate for reducing yellowing in the polycarbonate substrate. When a light from a point light source or a linear light illuminates the anti-UV reflector, UV radiation in the light is filtered or absorbed by the protecting layer thereby reducing yellowing in the polyearbonate substrate.Type: GrantFiled: August 11, 2006Date of Patent: December 2, 2008Assignee: Chi Lin Technology Co., Ltd.Inventors: Hsi-Hsin Shih, Kuo-Lung Wu, Tien-Chieh Chang, Shih-Kai Cheng, Mao-Song Lee
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Patent number: 7414788Abstract: The present invention relates to a diffusion plate used in a direct-type backlight module and a method for making the same. At least one of the surfaces of the diffusion plate has a microstructure constituted by repeated undulation that can refract and diffuse the incident light beams that enter the diffusion plate. Therefore, the paths of the light beams after entering the diffusion plate are changed, which raises the luminance of the backlight module.Type: GrantFiled: May 9, 2007Date of Patent: August 19, 2008Assignee: Chi Lin Technology Co., Ltd.Inventors: Mao-Song Lee, Hsi-Hsin Shih, Shen-Yin Tsai, Tien-Chieh Chang, Chin-Lung Kuo, Jun-Hong Lin, Shih-Kai Cheng
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Patent number: 7391571Abstract: The present invention relates to a diffusion plate used in a direct-type backlight module and a method for making the same. At least one of the surfaces of the diffusion plate has a microstructure constituted by repeated undulation that can refract and diffuse the incident light beams that enter the diffusion plate. Therefore, the paths of the light beams after entering the diffusion plate are changed, which raises the luminance of the backlight module.Type: GrantFiled: July 15, 2005Date of Patent: June 24, 2008Assignee: Chi Lin Technology Co., Ltd.Inventors: Mao-Song Lee, Hsi-Hsin Shih, Shen-Yin Tsai, Tien-Chieh Chang, Chin-Lung Kuo, Jun-Hong Lin, Shih-Kai Cheng
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Publication number: 20080079183Abstract: A method for making an optical element includes the steps of: coating a curable resin on a substrate so as to form a curable resin layer on the substrate; embossing the curable resin layer so as to form a plurality of micro-protrusions thereon; and exposing the curable resin layer directly to a power source so as to cure the curable resin layer.Type: ApplicationFiled: September 28, 2006Publication date: April 3, 2008Applicant: CHI LIN TECHNOLOGY CO., LTD.Inventors: Mao-Song Lee, Hsi-Hsin Shih, Chin-Lung Kuo, Shih-Kai Cheng, Shen-Yin Tsai, Jun-Hong Lin
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Publication number: 20070285588Abstract: A light diffuser plate includes: a diffuser film having a light incident surface and a light exit surface opposite to the light incident surface; a plurality of light-scattering particles dispersed in the diffuser film; and a light-enhancing film formed on the light exit surface of the diffuser film and having a light emerging surface opposite to the light exit surface and formed with a plurality of protrusions. The light exit surface of the diffuser film is uneven.Type: ApplicationFiled: May 8, 2007Publication date: December 13, 2007Applicant: Chi Lin Technology Co., Ltd.Inventors: Shen-Yin Tsai, Hsi-Hsin Shih, Shih-Kai Cheng, Chin-Lung Kuo
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Publication number: 20070236944Abstract: A light diffuser plate includes an optical matrix having opposite first and second ends that are opposite to each other in a first direction, alight incident surface, and a light exit surface opposite to the light incident surface in a second direction transverse to the first direction. The optical matrix is formed with a plurality of elongate holes, each of which extends through the first and second ends and each of which has a cross-section transverse to the length thereof. The cross-section of each of the holes has a periphery that has at least a curved segment which extends curvedly.Type: ApplicationFiled: April 3, 2007Publication date: October 11, 2007Inventors: Shen-Yin Tsai, Hsi-Hsin Shih, Shih-Kai Cheng
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Publication number: 20070211345Abstract: The present invention relates to a diffusion plate used in a direct-type backlight module and a method for making the same. At least one of the surfaces of the diffusion plate has a microstructure constituted by repeated undulation that can refract and diffuse the incident light beams that enter the diffusion plate. Therefore, the paths of the light beams after entering the diffusion plate are changed, which raises the luminance of the backlight module.Type: ApplicationFiled: May 9, 2007Publication date: September 13, 2007Inventors: Mao-Song Lee, Hsi-Hsin Shih, Shen-Yin Tsai, Tien-Chieh Chang, Chin-Lung Kuo, Jun-Hong Lin, Shih-Kai Cheng
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Publication number: 20070052883Abstract: A light diffusing assembly includes: a diffuser plate exhibiting a light scattering effect; a brightness-enhancing sheet for enhancing brightness of light passing therethrough; and an intermedium sandwiched between and in face-to-face contact with the diffuser plate and the brightness-enhancing sheet and having a refractive index greater than air and less than that of the diffuser plate.Type: ApplicationFiled: August 31, 2006Publication date: March 8, 2007Applicant: CHI LIN TECHNOLOGY CO., LTD.Inventors: Mao-Song Lee, Hsi-Hsin Shih, Shih-Kai Cheng
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Publication number: 20070054096Abstract: A method for forming an optical element includes: preparing an optical substrate; coating a curable resin on the optical substrate so as to form a curable resin layer on the optical substrate; embossing the curable resin layer so as to form a plurality of adjoining pointed micro-protrusions, each of which has a tip end; heating the pointed micro-protrusions of the curable resin layer in such a manner that the tip end of each of the pointed micro-protrusions is softened and is spread over the remainder of the respective one of the pointed micro-protrusions so as to form the adjoining pointed micro-protrusions into adjoining rounded micro-protrusions which cooperatively form a continuous curved surface; and curing the curable resin layer.Type: ApplicationFiled: August 31, 2006Publication date: March 8, 2007Applicant: CHI LIN TECHNOLOGY CO., LTD.Inventors: Mao-Song Lee, Hsi-Hsin Shih, Shih-Kai Cheng
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Publication number: 20070049649Abstract: Disclosed is a method of making foamed polymer beads, which comprises: mixing a polymer with a high-pressure gas or a supercritical fluid in an extruder to create a homogeneous single-phase mixture; and extruding the homogeneous single-phase mixture through a die to granulate foamed polymer beads each containing micro voids inside.Type: ApplicationFiled: August 30, 2006Publication date: March 1, 2007Inventors: Mao-Song Lee, Hsi-Hsin Shih, Shih-Kai Cheng
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Publication number: 20070045888Abstract: Disclosed is a method of making a light-reflecting article comprising: mixing a polymer with a high-pressure gas or a supercritical fluid in an extruder to create a homogeneous single-phase mixture; and extruding the homogeneous single-phase mixture through a die to form an extrudate, wherein the resultant extrudate contains a polymer foam having micro voids with a mean cell diameter of no more than 200 ?m.Type: ApplicationFiled: August 30, 2006Publication date: March 1, 2007Inventors: Mao-Song Lee, Hsi-Hsin Shih, Shih-Kai Cheng
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Publication number: 20070037000Abstract: Disclosed is an anti-UV reflector for distributing a light from a point light source or a linear light uniformly over a target. The anti-UV reflector mainly includes a light reflecting polymeric substrate and a protecting layer of anti-UV material provided on the polycarbonate substrate for reducing yellowing in the polycarbonate substrate. When a light from a point light source or a linear light illuminates the anti-UV reflector, UV radiation in the light is filtered or absorbed by the protecting layer thereby reducing yellowing in the polyearbonate substrate.Type: ApplicationFiled: August 11, 2006Publication date: February 15, 2007Applicant: CHI LIN TECHNOLOGY CO., LTD.Inventors: Hsi-Hsin Shih, Kuo-Lung Wu, Tien-Chieh Chang, Shih-Kai Cheng, Mao-Song Lee
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Publication number: 20070014034Abstract: The present invention relates to a diffusion plate used in a direct-type backlight module and a method for making the same. At least one of the surfaces of the diffusion plate has a microstructure constituted by repeated undulation that can refract and diffuse the incident light beams that enter the diffusion plate. Therefore, the paths of the light beams after entering the diffusion plate are changed, which raises the luminance of the backlight module.Type: ApplicationFiled: July 15, 2005Publication date: January 18, 2007Inventors: Mao-Song Lee, Hsi-Hsin Shih, Shen-Yin Tsai, Tien-Chieh Chang, Chin-Lung Kuo, Jun-Hong Lin, Shih-Kai Cheng
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Publication number: 20070014111Abstract: A light diffusing assembly includes: a diffuser plate exhibiting a light scattering effect and having a light-emerging surface; and a brightness-enhancing film exhibiting a light concentrating effect and formed directly on the light-emerging surface of the diffuser plate. The brightness-enhancing film has a roughened surface opposite to the light-emerging surface of the diffuser plate.Type: ApplicationFiled: September 28, 2006Publication date: January 18, 2007Applicant: CHI LIN TECHNOLOGY CO., LTD.Inventors: Mao-Song Lee, Hsi-Hsin Shih, Shih-Kai Cheng