Patents by Inventor Yi-Hui Chang
Yi-Hui 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: 8172445Abstract: A backlight module can be used in a dual display module and capable of blurring the shadow image produced by the sub display window in the main display window, while the main display window is displaying images, is disclosed. The disclosed backlight module comprises: a light emitting unit, a first frame located on one side of the light emitting unit and a first display window is enclosed by the first frame, a second frame located on the other side of the light emitting unit opposing to the first frame and a second display window is enclosed by the second frame, and a light diffusing plate, wherein the display area of the second display window is larger than the display area of the first display window. Besides, the light diffusing plate has a smooth surface and a rough surface respectively, while the rough surface is facing the light emitting unit.Type: GrantFiled: July 10, 2009Date of Patent: May 8, 2012Assignee: Chimei Innolux CorporationInventors: Ming-Cheng Tai, Yi-Hui Chang, Li-Chiao Huang
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Publication number: 20110180841Abstract: The present invention relates to an alternating current driven light emitting diode module. The alternating current driven light emitting diode module includes an alternating current driven light emitting diode chip, a first thermal conduction plate, and a ceramic substrate. The first thermal conduction plate is arranged on the ceramic substrate. The alternating current driven light emitting diode chip is arranged on the first thermal conduction plate. The alternating current driven light emitting diode module has better heat dissipating property and better insulation property.Type: ApplicationFiled: September 28, 2008Publication date: July 28, 2011Inventors: Yi-Hui Chang, Ching-Chien Hao
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Patent number: 7768591Abstract: The present invention relates to a display panel module. The display panel module includes a display panel; a first casing having a hollow region; an addition member arranged on the first casing; a first adhesive member having one side attached on the first casing, another side attached on the display panel and a breathing structure; and a second casing coupled with the first casing to fix the display panel therebetween.Type: GrantFiled: October 11, 2007Date of Patent: August 3, 2010Assignee: TPO Displays Corp.Inventors: Yi-Hui Chang, Ting-Fang Luo
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Publication number: 20100008067Abstract: A backlight module can be used in a dual display module and capable of blurring the shadow image produced by the sub display window in the main display window, while the main display window is displaying images, is disclosed. The disclosed backlight module comprises: a light emitting unit, a first frame located on one side of the light emitting unit and a first display window is enclosed by the first frame, a second frame located on the other side of the light emitting unit opposing to the first frame and a second display window is enclosed by the second frame, and a light diffusing plate, wherein the display area of the second display window is larger than the display area of the first display window. Besides, the light diffusing plate has a smooth surface and a rough surface respectively, while the rough surface is facing the light emitting unit.Type: ApplicationFiled: July 10, 2009Publication date: January 14, 2010Applicant: TPO Displays Corp.Inventors: Ming-Cheng TAI, Yi-Hui CHANG, Li-Chiao HUANG
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Patent number: 7599018Abstract: Systems for displaying images are provided. An embodiment of a system comprises a liquid crystal display device with a liquid crystal display module incorporated thereinto. The flat display module primarily includes a display unit, a plastic frame, a bezel and a flexible sealant disposed between the plastic frame and the bezel. The plastic frame surrounds the display unit and has a protrusion. During assembly, the protrusion is inlaid into the flexible sealant to seal the gap between the plastic frame and the bezel, thereby preventing incursion of dust into the display unit.Type: GrantFiled: September 21, 2006Date of Patent: October 6, 2009Assignee: TPO Displays Corp.Inventors: Jui-Hsieh Shen, Yi-Hui Chang
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Patent number: 7463315Abstract: An apparatus of a backlight module and a liquid crystal display. The apparatus includes a plurality of point light sources and a light guide plate. The plurality of point light sources is positioned on a base plate. The light guide plate has a first surface and a second surface parallel to the first surface. The first surface of the light guide plate has a plurality of convex structures corresponding to the point light sources, every convex structure has a distal end portion, and an arc-shaped recess formed therein.Type: GrantFiled: March 11, 2004Date of Patent: December 9, 2008Assignee: TPO Displays Corp.Inventor: Yi-Hui Chang
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Publication number: 20080088766Abstract: The present invention relates to a display panel module. The display panel module includes a display panel; a first casing having a hollow region; an addition member arranged on the first casing; a first adhesive member having one side attached on the first casing, another side attached on the display panel and a breathing structure; and a second casing coupled with the first casing to fix the display panel therebetween.Type: ApplicationFiled: October 11, 2007Publication date: April 17, 2008Inventors: Yi-Hui Chang, Ting-Fang Luo
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Publication number: 20070132906Abstract: Systems for displaying images are provided. An embodiment of a system comprises a liquid crystal display device with a liquid crystal display module incorporated thereinto. The flat display module primarily includes a display unit, a plastic frame, a bezel and a flexible sealant disposed between the plastic frame and the bezel. The plastic frame surrounds the display unit and has a protrusion. During assembly, the is inlaid into the flexible sealant to seal the gap between the plastic frame and the bezel, thereby preventing incursion of dust into the display unit.Type: ApplicationFiled: September 21, 2006Publication date: June 14, 2007Inventors: Jui-Hsieh Shen, Yi-Hui Chang
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Patent number: 6948842Abstract: The present invention provides a light emitting diode array illuminant and a backlight module by using the same, which comprises at least a carrier and a plurality of light emitting diodes. The carrier comprises a front surface and a back surface, and a plurality set of contacts are disposed on the front surface and back surface of the carrier. The light emitting diodes are disposed on the carrier, and are electrically connected to the contacts of each set, respectively. The illuminant provided by the light emitting diodes emits a light from a side of the carrier. The present invention further applies the light emitting diode array illuminant to a backlight module, so that it can be activated under low temperature and also protects the backlight module from over heating after it is activated.Type: GrantFiled: July 30, 2003Date of Patent: September 27, 2005Assignee: Toppoly Optoelectronics Corp.Inventor: Yi-Hui Chang
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Publication number: 20050200773Abstract: An apparatus of a backlight module and a liquid crystal display. The apparatus includes a plurality of point light sources and a light guide plate. The plurality of point light sources is positioned on a base plate. The light guide plate has a first surface and a second surface parallel to the first surface. The first surface of the light guide plate has a plurality of convex structures corresponding to the point light sources, every convex structure has a distal end portion, and an arc-shaped recess formed therein.Type: ApplicationFiled: March 11, 2004Publication date: September 15, 2005Inventor: Yi-Hui Chang
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Patent number: 6843582Abstract: An improved back light module that the special design of light guide plate can prevent from the non-uniform of illumination. The module includes a light source; a reflector below the light source to reflect back the downward light rays for increasing the illumination of the back light module; and a light guide plate above said light source that a first portion of the bottom surface of said light guide plate, which is over said light source, is a plane and a second portion of the bottom/top surface of said light guide plate, which is not over said light source, has a plurality of regular bumps/recesses for focusing the light rays to increase the illumination, wherein said first portion and said second portion are arranged alternately in order.Type: GrantFiled: April 25, 2003Date of Patent: January 18, 2005Assignee: Toppoly Optoelectronics Corp.Inventor: Yi-Hui Chang
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Publication number: 20040212982Abstract: The present invention provides a light emitting diode array illuminant and a backlight module by using the same, which comprises at least a carrier and a plurality of light emitting diodes. The carrier comprises a front surface and a back surface, and a plurality set of contacts are disposed on the front surface and back surface of the carrier. The light emitting diodes are disposed on the carrier, and are electrically connected to the contacts of each set, respectively. The illuminant provided by the light emitting diodes emits a light from a side of the carrier. The present invention further applies the light emitting diode array illuminant to a backlight module, so that it can be activated under low temperature and also protects the backlight module from over heating after it is activated.Type: ApplicationFiled: July 30, 2003Publication date: October 28, 2004Inventor: YI-HUI CHANG
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Publication number: 20040213000Abstract: An improved back light module that the special design of light guide plate can prevent from the non-uniform of illumination. The module includes a light source; a reflector below the light source to reflect back the downward light rays for increasing the illumination of the back light module; and a light guide plate above said light source that a first portion of the bottom surface of said light guide plate, which is over said light source, is a plane and a second portion of the bottom/top surface of said light guide plate, which is not over said light source, has a plurality of regular bumps/recesses for focusing the light rays to increase the illumination, wherein said first portion and said second portion are arranged alternately in order.Type: ApplicationFiled: April 25, 2003Publication date: October 28, 2004Applicant: Toppoly OptoelectronicsInventor: Yi-Hui Chang