Patents by Inventor Jing-Huan Liao
Jing-Huan Liao 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).
-
Patent number: 8944663Abstract: A light guide plate having a V-cut structure and a backlight module are disclosed. The light guide plate comprises straight-striped V-cut structure sets and a base plate having a light-entering side. The straight-striped V-cut structure sets are formed on a surface of the base plate adjacent to the light-entering side, wherein each straight-striped V-cut structure set is composed of at least one V-cut element, each V-cut element having a first base angle and a second base angle formed between its respective two inclined surfaces and a horizontal surface of the base plate. The first base angle is located closer to the light-entering side than the second base angle is, and is smaller than or equal to the second base angle. The straight-striped V-cut structure sets have a plurality of second average angle values which are gradually decreased from the light-entering side to a central position of the base plate.Type: GrantFiled: June 26, 2009Date of Patent: February 3, 2015Assignee: AU Optronics CorporationInventors: Chiung-Han Wang, Jing-Huan Liao
-
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
-
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
-
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
-
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
-
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
-
Patent number: 8182130Abstract: A light guiding structure of a light guide plate is provided. The light guiding structure comprises a plurality of protrusion ridge portions extending along a longitudinal direction. The height or the vertex angle of each protrusion ridge portion periodically or randomly varies along the longitudinal direction.Type: GrantFiled: December 15, 2011Date of Patent: May 22, 2012Assignee: Au Optronics Corp.Inventors: Chiung-Han Wang, Jing-Huan Liao, Yu-Tsung Huang
-
Publication number: 20120087152Abstract: A light guiding structure of a light guide plate is provided. The light guiding structure comprises a plurality of protrusion ridge portions extending along a longitudinal direction. The height or the vertex angle of each protrusion ridge portion periodically or randomly varies along the longitudinal direction.Type: ApplicationFiled: December 15, 2011Publication date: April 12, 2012Applicant: AU OPTRONICS CORP.Inventors: Chiung-Han Wang, Jing-Huan Liao, Yu-Tsung Huang
-
Patent number: 8147111Abstract: A light guide plate including a body and a plurality of prism microstructures is provided. The body has a bottom surface, a light emitting surface opposite to the bottom surface, and a plurality of side surfaces. The light emitting surface has a central area and at least one peripheral area outside the central area. The prism microstructures are disposed on the light emitting surface and the bottom surface. The prism microstructure disposed on the light emitting surface includes a plurality of first prism microstructures in the central area and a plurality of second prism microstructures in the peripheral area. A top angle ?2 of the second prism microstructure is greater than a top angle ?1 of the first prism microstructure. A backlight module including the above-mentioned light guide plate is also provided.Type: GrantFiled: April 10, 2009Date of Patent: April 3, 2012Assignee: Au Optronics CorporationInventors: Chiung-Han Wang, Jing-Huan Liao, Yu-Tsung Huang
-
Patent number: 8136976Abstract: A light guiding structure of a light guide plate is provided. The light guiding structure comprises a plurality of protrusion ridge portions extending along a longitudinal direction. The height or the vertex angle of each protrusion ridge portion periodically or randomly varies along the longitudinal direction.Type: GrantFiled: May 22, 2009Date of Patent: March 20, 2012Assignee: Au Optronics Corp.Inventors: Chiung-Han Wang, Jing-Huan Liao, Yu-Tsung Huang
-
Publication number: 20100202147Abstract: A light guiding structure of a light guide plate is provided. The light guiding structure comprises a plurality of protrusion ridge portions extending along a longitudinal direction. The height or the vertex angle of each protrusion ridge portion periodically or randomly varies along the longitudinal direction.Type: ApplicationFiled: May 22, 2009Publication date: August 12, 2010Applicant: AU OPTRONICS CORP.Inventors: Chiung-Han Wang, Jing-Huan Liao, Yu-Tsung Huang
-
Publication number: 20100182802Abstract: A light guide plate having a V-cut structure and a backlight module are disclosed. The light guide plate comprises straight-striped V-cut structure sets and a base plate having a light-entering side. The straight-striped V-cut structure sets are formed on a surface of the base plate adjacent to the light-entering side, wherein each straight-striped V-cut structure set is composed of at least one V-cut element, each V-cut element having a first base angle and a second base angle formed between its respective two inclined surfaces and a horizontal surface of the base plate. The first base angle is located closer to the light-entering side than the second base angle is, and is smaller than or equal to the second base angle. The straight-striped V-cut structure sets have a plurality of second average angle values which are gradually decreased from the light-entering side to a central position of the base plate.Type: ApplicationFiled: June 26, 2009Publication date: July 22, 2010Applicant: AU OPTRONICS CORPORATIONInventors: Chiung-Han Wang, Jing-Huan Liao
-
Publication number: 20100128495Abstract: A light guide plate including a body and a plurality of prism microstructures is provided. The body has a bottom surface, a light emitting surface opposite to the bottom surface, and a plurality of side surfaces. The light emitting surface has a central area and at least one peripheral area outside the central area. The prism microstructures are disposed on the light emitting surface and the bottom surface. The prism microstructure disposed on the light emitting surface includes a plurality of first prism microstructures in the central area and a plurality of second prism microstructures in the peripheral area. A top angle ?2 of the second prism microstructure is greater than a top angle ?1 of the first prism microstructure. A backlight module including the above-mentioned light guide plate is also provided.Type: ApplicationFiled: April 10, 2009Publication date: May 27, 2010Applicant: AU OPTRONICS CORPORATIONInventors: Chiung-Han Wang, Jing-Huan Liao, Yu-Tsung Huang
-
Publication number: 20100110338Abstract: 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: March 12, 2009Publication date: May 6, 2010Applicant: AU Optronics CorporationInventors: Wei-Tien Chang, Jing-Huan Liao
-
Patent number: 7507009Abstract: A light guide plate structure, for use with a back light module of a liquid crystal display, has a top surface, a bottom surface, a first end portion, a second end portion which is opposite the first end portion, and a plurality of substantially paralleled V-shape grooves formed on the bottom surface and extending from the first end portion to the second end portion. Each of said V-shape grooves comprises a top angle with a continuous variation from the first end portion to the second end portion. The present invention gets rid of the dark areas of an LCD that appear adjacent to one of the end portions in conventional models, thus enhancing the uniformity in its brightness levels.Type: GrantFiled: July 7, 2006Date of Patent: March 24, 2009Assignee: AU Optronics Corp.Inventors: Ko-Chia Kao, Jing-Huan Liao, Chih-Kuang Chen, Jyh-Haur Huang
-
Patent number: 7470038Abstract: A diffuser used in a backlight module including a plurality of light sources is disclosed. The diffuser according to the present invention makes a uniform light output. The diffuser includes a transparent substrate and a plurality of optical structures. The transparent substrate has an entrance surface and an exit surface. The plurality of optical structures is disposed on the exit surface, each optical structure is dented from the exit surface to the interior of the transparent substrate and forms a refractive convex within the transparent substrate, and each refractive convex corresponds to one of the plurality of the light sources. The maximum value of the included angle between the tangent to the refractive convex edge and the normal to the exit surface is smaller than 30 degrees, such that an incident light ray from the light sources refracts and deviates from the normal to the refractive convex through the refractive convex.Type: GrantFiled: November 27, 2007Date of Patent: December 30, 2008Assignee: Au Optronics CorporationInventors: Ci-Guang Peng, Chih-Lin Wang, Jing-Huan Liao, Shau-Yu Tsai
-
Patent number: 7470046Abstract: A backlight module and an illumination device thereof. The illumination device of the backlight module comprises a light source and a lens, disposed over the light source with a predetermined gap therebetween. The lens comprises a bottom surface as an incident surface, a pair of upper refracting surfaces, and a pair of lateral refracting surfaces. The upper refracting surfaces form an included angle substantially in a range of about 80° to about 120°.Type: GrantFiled: July 6, 2005Date of Patent: December 30, 2008Assignee: AU Optronics Corp.Inventors: Ko-Chia Kao, Chih-Kuang Cheng, Jyh-Haur Huang, Jing-Huan Liao
-
Publication number: 20080212321Abstract: A diffuser used in a backlight module including a plurality of light sources is disclosed. The diffuser according to the present invention makes a uniform light output. The diffuser includes a transparent substrate and a plurality of optical structures. The transparent substrate has an entrance surface and an exit surface. The plurality of optical structures is disposed on the exit surface, each optical structure is dented from the exit surface to the interior of the transparent substrate and forms a refractive convex within the transparent substrate, and each refractive convex corresponds to one of the plurality of the light sources. The maximum value of the included angle between the tangent to the refractive convex edge and the normal to the exit surface is smaller than 30 degrees, such that an incident light ray from the light sources refracts and deviates from the normal to the refractive convex through the refractive convex.Type: ApplicationFiled: November 27, 2007Publication date: September 4, 2008Applicant: AU OPTRONICS CORPORATIONInventors: Ci-Guang Peng, Chih-Lin Wang, Jing-Huan Liao, Shau-Yu Tsai
-
Patent number: 7377680Abstract: A light spreading device and a backlight module utilizing the same. The backlight module includes a light guide, a plurality of point lights, and a plurality of light spreading devices. The light guide includes an entrance surface. The point lights are disposed near the entrance surface. Each light spreading device, corresponding to one of the point lights, is disposed between the light guide and the corresponding point light.Type: GrantFiled: May 22, 2006Date of Patent: May 27, 2008Assignee: AU Optronics Corp.Inventors: Jing-Huan Liao, Mei-Fen Lin, Pang-Hsuan Liu, Chih-Lin Wang
-
Patent number: 7354179Abstract: A prism unit includes a first prism having a first incident face and a first refraction face that is adjacent to and that cooperates with the first incident face to define a first angle ranging 50° to 70°, a second prism having a second incident face that is generally parallel to the first refraction face and a medium layer sandwiched between the first refraction face and the second incident face, and having a refractive index smaller than that of the first and second prisms.Type: GrantFiled: April 11, 2006Date of Patent: April 8, 2008Assignee: AU Optronics Corp.Inventors: Jyh-Haur Huang, Jing-Huan Liao, Ming-Fa Wang, Chih-Kuang Chen