Fluorescent Patents (Class 362/614)
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Patent number: 11828968Abstract: A backlight module and a method of manufacturing the backlight module are disclosed. The backlight module includes a substrate including a first end and a second end opposite to the first end. An ink layer is disposed on the substrate and has a reflectivity gradually increasing from the first end to the second end. At least two of light-emitting units are arranged in an array on the ink layer.Type: GrantFiled: July 9, 2020Date of Patent: November 28, 2023Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Linlin Fu, Dehua Li, Xin Zhang
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Patent number: 11604375Abstract: A display device includes a diffuser plate, a plurality of light sources that irradiates the diffuser plate with light, a mounting substrate on which the plurality of light sources is mounted, a chassis to which the mounting substrate is secured, and a support member that is disposed between the chassis and the diffuser plate and that supports the diffuser plate. The support member includes a securing pin that is fitted in a hole that is formed in the mounting substrate, a support pin that is located between the diffuser plate and the chassis, and a coupling portion that extends in a plane direction of the mounting substrate and that couples the securing pin and the support pin with each other.Type: GrantFiled: May 25, 2021Date of Patent: March 14, 2023Assignee: SHARP KABUSHIKI KAISHAInventor: Akira Gotou
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Patent number: 11416029Abstract: An electronic device may have a housing formed from a rigid material such as metal or fiber-composite material. A display such as an organic light-emitting diode display may be attached to a planar wall portion of the housing using a layer of adhesive. A display cover layer may be attached to the organic light-emitting diode with a layer of adhesive. The adhesive layers may be rigid to enhance device stiffness. The housing may have curved sidewall portions that extend outwardly from the planar wall portion to enhance stiffness. The organic light-emitting diode display may have an array of pixels formed from thin-film transistor circuitry. The thin-film transistor circuitry may be formed on a substrate such as a glass substrate that is attached to the planar wall portion. The organic light-emitting diode display may have a circular polarizer that is attached to the thin-film transistor circuitry.Type: GrantFiled: September 3, 2019Date of Patent: August 16, 2022Assignee: Apple Inc.Inventors: Dinesh C. Mathew, Adam T. Garelli, Mikael M. Silvanto
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Patent number: 11249344Abstract: A display device including a lower cover; a circuit substrate on the lower cover; a plurality of light sources disposed on the circuit substrate; a reflection layer disposed on the lower cover; a light regulating pattern disposed close to an edge of the reflection layer; and an optical sheet disposed on the light sources. Further, the light regulating pattern changes in size as a distance from the light source changes.Type: GrantFiled: February 26, 2021Date of Patent: February 15, 2022Assignee: LG ELECTRONICS INC.Inventors: Yongjin Kim, Munheon Hong, Chilkeun Park, Sangcheon Kim, Mangeun Kim
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Patent number: 11175445Abstract: Illuminating sections of a light guide with LEDs leads to unwanted light bleeding to other parts of the light guide. Furthermore typically LEDs are placed at a large distance from the area that couples out light from this LED due to a spike in intensity close to the LED. In order to avoid this spike being visible in the lit area the distance is increased which results in unwanted areal increase of the overall system. The present provides a layout to overcome these challenges.Type: GrantFiled: January 29, 2019Date of Patent: November 16, 2021Assignee: Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNOInventors: Stephan Harkema, Jeroen Van Den Brand, Margaretha Maria De Kok, Adri Van Der Waal, Jeroen Franciscus Marinus Schram
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Patent number: 11029560Abstract: Example implementations relate to liquid crystal display (LCD) lighting modes. An example device can include an LCD, a wide gamut light-emitting diode (LED) light set to backlight the LCD, a narrow gamut LED light set to backlight the LCD and a controller communicatively coupled to the LCD. The controller can switch the LCD between a wide gamut lighting mode, a narrow gamut lighting mode, and a high brightness lighting mode in response to changes in ambient light and content displayed on the LCD.Type: GrantFiled: December 12, 2017Date of Patent: June 8, 2021Assignee: Hewlett-Packard Development Company, L.P.Inventors: Hsing-Hung Hsieh, Alexander Wayne Clark, Ann Alejandro Villegas
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Patent number: 10436970Abstract: Disclosed is an optical waveguide body having a first surface that includes one or more tapered portions displaced between an input surface and an end surface or edge of the waveguide body. A second surface displaced from and opposite the first surface may also include one or more tapered portions between the input surface wherein the furthest tapered portions of the first and second surface forms and end surface or edge.Type: GrantFiled: March 15, 2013Date of Patent: October 8, 2019Assignee: Ideal Industries Lighting LLCInventor: John W. Durkee
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Patent number: 10338707Abstract: An integrated front light assembly, a manufacturing method thereof and a reflective display device are disclosed. The integrated front light assembly includes a protective substrate; a touch-control layer disposed on the protective substrate; a light guide layer disposed on the touch-control layer; and a light source disposed on at least one side of the light guide layer. The reflective display device comprises a display panel and the integrated front light assembly. In this way, a thickness of the reflective display device can be reduced and a display effect of the reflective display device can be improved.Type: GrantFiled: November 27, 2015Date of Patent: July 2, 2019Assignee: BOE Technology Group Co., Ltd.Inventors: Long Wang, Guangkui Qin, Fangzhen Zhang, Xiaoling Xu, Chun Wei Wu, Yanfeng Wang, Li Zhou
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Patent number: 9964689Abstract: Embodiments of the present invention disclose a backlight assembly including a backlight housing, a light source holder and a plurality of light sources. The light source holder is mounted to the backlight housing in such a way that the light source holder is rotatable about a central axis X thereof. The light source holder is further provided with at least two light source mounting grooves arranged at an angular interval around the central axis, and each light source mounting groove is configured to mount at least one of the plurality of light sources therein. With this backlight assembly, it is possible to realize replacement of the backlight source without disassembling the backlight assembly by rotating another or other light source to an operating position by rotation of the light source holder.Type: GrantFiled: July 11, 2016Date of Patent: May 8, 2018Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.Inventors: Hui Zheng, Dongxi Li
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Patent number: 9881948Abstract: The present disclosure provides an array substrate. The array substrate includes a substrate; and at least one ultraviolet (UV) detection structure. The UV detection structure includes a photosensitive pattern on the substrate, and a first electrode pattern and a second electrode pattern for providing an operating voltage for the at least one UV detection structure.Type: GrantFiled: December 10, 2015Date of Patent: January 30, 2018Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Jianming Sun, Ben Niu
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Patent number: 9523884Abstract: A direct-type backlight module unit of the dual-side liquid crystal display comprising: a first display panel, a second display panel, a light source unit is formed between the first display panel and the second display panel; wherein the light source unit comprises a back-bezel including a first side opposite to the first display panel and a second side opposite to the second display panel and a through hole; the light source unit is a light bars made of a plurality of light units wherein a portion of the light bars bond into the first side so that the light units of the light bar is located in the through holes and lights the second display panel, and the other portion of the light bars bond into the second side so that the light units of the light bar is located in the through holes and lights the first display panel. Moreover, the back-bezel can be substituted by a LED light plate with through holes.Type: GrantFiled: June 30, 2014Date of Patent: December 20, 2016Assignee: Shenzhen China Star Optoelectronics Technology Co., LtdInventors: Yongyuan Qiu, Zanjia Su
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Patent number: 9335619Abstract: There is provided a luminescent light emitting device including a mirror layer, a luminescent material plate that is formed on one surface side of the mirror layer, and a conductive thin wire film in which a conductive thin wire is disposed and that lies on the other surface side of the mirror layer, in that luminescent light that is emitted by the luminescent material plate is emitted to the front that is one surface side of the luminescent material plate by the mirror layer, and damage done to the luminescent material plate is detected by a disconnection of the conductive thin wire.Type: GrantFiled: September 15, 2014Date of Patent: May 10, 2016Assignee: CASIO COMPUTER CO., LTD.Inventor: Naotsugu Ogura
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Patent number: 9104051Abstract: The present invention provides a back frame of flat panel display device and a backlight system. The back frame includes primary assembling pieces, secondary assembling pieces, and a bracing piece for fixing a circuit board. The primary assembling pieces are connected through joining and use different thermally conductive materials. Further, a circuit board is mountable and position adjustable through a bracing piece. The present invention also provides a backlight system. The back frame and the backlight system of the present invention have a back frame of simple structure, reduce the expenditure of a back frame mold, facilitate heat dissipation, facility fixing of circuit board, and save the material used for back frame so as to lower down the manufacturing cost of flat panel display device.Type: GrantFiled: November 24, 2011Date of Patent: August 11, 2015Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.Inventors: Yi-Cheng Kuo, Yu-Chun Hsiao, Chong Huang, Jia-He Cheng, Cheng-Wen Que, Quan Li, Liu-Yang Yang
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Patent number: 8866991Abstract: A tiled display device includes a plurality of display devices defining an image display part, the image display part divided into a central portion and an outer edge portion, a support frame tiling the plurality of display devices side by side, and a plurality of light guides, each light guide disposed on each of the display devices, wherein the brightness of an image displayed at the outer edge portion is higher than that of an image disposed at the central portion.Type: GrantFiled: January 26, 2010Date of Patent: October 21, 2014Assignee: LG Display Co., Ltd.Inventors: Hyun Suk Jin, Min Joo Kim
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Patent number: 8783931Abstract: The attenuation of light per unit length in a waveguide as a result of active pixels (i.e., open pixels) may be corrected or mitigated by injecting apodized light into the waveguide. A light injection system and method is provided to enhance the luminous uniformity of the active pixels in a waveguide-based display. Embodiments of the present invention include a slab waveguide having a first edge and a second edge that intersect at a vertex, a first light source disposed along the first edge, and a second light source disposed along the second edge. The first light source, or the second light source, or both, comprises an apodized light source.Type: GrantFiled: April 14, 2011Date of Patent: July 22, 2014Assignee: Rambus Delaware LLCInventors: Timothy A. McCollum, Fumitomo Hide, Martin G. Selbrede, Daniel K. Van Ostrand
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Publication number: 20140192559Abstract: Light guide structures that include a transparent plate having a first end and a second end; and a plurality of transparent light guide members, each transparent light guide member extending from the first end to the second end along one surface of the transparent plate and being configured to emit white light in response to light applied thereto are described.Type: ApplicationFiled: June 14, 2012Publication date: July 10, 2014Applicant: Empire Technology Development LLCInventor: Kenichi Hashizume
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Patent number: 8773618Abstract: A light emitting unit and a liquid crystal display apparatus including the same are provided. The light emitting unit includes a light source unit which generates light, and a driving board which drives the light source unit. The light source unit includes a light source which generates the light, a container member which forms an opening therein and which contains the light source within the opening, and a fluorescent member mounted in the opening of the container member. The light source and the florescent member are spaced apart.Type: GrantFiled: March 16, 2012Date of Patent: July 8, 2014Assignee: Samsung Electronics Co., Ltd.Inventors: Jeong-phil Seo, Gil-tae Hur, Yong-hun Kwon, Kye-hoon Lee, Young-min Lee, Kun-ho Cho, Suk-ju Choi
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Patent number: 8767137Abstract: In a liquid crystal display device, the reduction of power consumption is realized by reddening a backlight while maintaining a white balance. An aperture ratio of a red subpixel and an aperture ratio of a blue subpixel are set such that, in a state where an aperture ratio of a green subpixel in each pixel of a liquid crystal panel is fixed to a desired value, white brightness efficiency takes a maximum value which is set based on a balance between light emission efficiency which is increased corresponding to lowering of a color temperature of the backlight and transmissivity of the pixel which is decreased corresponding to the increase of the aperture ratio of the blue subpixel.Type: GrantFiled: January 28, 2011Date of Patent: July 1, 2014Assignee: Japan Display Inc.Inventors: Ikuo Hiyama, Kentaro Ojima, Masahiro Ishii, Shisei Katou, Yoshiro Mikami
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Publication number: 20140104873Abstract: The present invention provides a backlight module, which includes a backplane, a light source arranged inside the backplane, a reflector plate arranged inside the backplane, a light guide plate arranged on the reflector plate, and a mold frame mounted to the backplane, the backplane and the mold frame being coated with a layer of high reflectivity material at portions corresponding to the light source. The backlight module of the present invention uses a high reflectivity material layer coated on a backplane and a mold frame at the site of a light source that improve utilization rate of light and has a simple structure. Further, the amount of the high reflectivity material used is relatively small so as to effectively control the cost. The backplane and the mold frame are coupled to each other through snap fitting so that assembling/disassembling is easy and a large amount of time can be saved.Type: ApplicationFiled: October 26, 2012Publication date: April 17, 2014Applicant: Shenzhen China Star Optoelectroncs Technology Co., Ltd.Inventors: Gang Yu, Yubo Gu, Liuyang Yang
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Patent number: 8684583Abstract: A backlight unit 12 includes a chassis 14, a plurality of cold cathode tubes 18, an optical member 16 and a plurality of support members 20. The chassis 14 has an opening on a light exit side. The cold cathode tubes 18 are light sources arranged in a parallel layout and housed in the chassis 14. The optical member 16 is arranged on the light exit side outer than the cold cathode tubes 18 so as to cover the opening of the chassis 14. The support members 20 are arranged in a parallel layout along a parallel arrangement direction of the cold cathode tubes 18. The support members 20 are formed such that support positions of the optical member 16 are relatively closer to the cold cathode tubes 18 around the center and relatively farther from the cold cathode tubes 18 near the edges. The cold cathode tubes 18 are arranged at relatively smaller intervals around the center and at relatively larger intervals near the edges.Type: GrantFiled: November 17, 2009Date of Patent: April 1, 2014Assignee: Sharp Kabushiki KaishaInventor: Masashi Yokota
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Patent number: 8668373Abstract: A thin backlight module includes a light guide plate, a light source module, and an adhesive layer. The light guide plate has a light-entering end and a bottom, wherein a plurality of troughs spaced at intervals are formed on a portion of the bottom connected to the light-entering end. The light source module is disposed corresponding to the light-entering end and includes a substrate and a plurality of light sources. The light sources are disposed on the substrate and distributed along the light-entering end, wherein each of the light sources corresponds to an interval between the adjacent troughs. The adhesive layer is attached to the substrate, faces the bottom of the light guide plate, and extends into the troughs to be attached to the light guide plate.Type: GrantFiled: March 3, 2013Date of Patent: March 11, 2014Assignee: AU Optronics CorporationInventors: Yung Chih Liu, Chih-Shun Fan, Yu-Sen Jang
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Publication number: 20130322115Abstract: A lighting assembly comprises a light source and a light guide having a light input edge and a light output surface. Light from the light source enters the light input edge and is propagated within the light guide by total internal reflection. A spectrum adjuster is adjustable or selected to achieve a desired spectrum of the light within the light guide.Type: ApplicationFiled: May 30, 2013Publication date: December 5, 2013Inventors: Jeffery R. Parker, Timothy A. McCollum, Michael D. Mayer
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Patent number: 8596851Abstract: A lamp socket with a decreased number of elements is presented according to one or more embodiments. The lamp socket in accordance with one embodiment of the present invention includes a power supply member. The power supply member includes a first lamp connecting terminal, a second lamp connecting terminal facing the first lamp connecting terminal and an inverter connecting terminal disposed below the first and second lamp connecting terminals. Upper end portions of the first and second lamp connecting terminals are bent in opposite directions and the first lamp connecting terminal includes a fixing protrusion protruding from an inner surface thereof facing the second lamp connecting terminal.Type: GrantFiled: January 5, 2010Date of Patent: December 3, 2013Assignee: Samsung Display Co., Ltd.Inventors: Kyung-Rok Ko, Jae-Hwan Chun
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Patent number: 8541549Abstract: The present invention describes an annexin derivative and a method of using the annexin derivative as a biosensor for real-time visualization of phosphatidylserine exposure, apoptosis, live-cell imaging and monitoring of cell health.Type: GrantFiled: April 1, 2009Date of Patent: September 24, 2013Assignee: University of Southern CaliforniaInventor: Ralf Langen
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Patent number: 8538217Abstract: A lighting system for generating an illumination product comprises an excitation source, blue/UV LED, operable to generate excitation radiation and a remotely located phosphor, photo luminescent material. Excitation radiation is guided from the excitation source to the phosphor by a waveguiding medium, the waveguiding medium being configured such that the distance the radiation travels from the excitation source to the phosphor layer is at least one centimeter in length. The UV/blue excitation source provides excitation radiation to the phosphor(s), causing the phosphor(s) to photo luminesce, and it may also provide a component of the final illumination product. The configuration of the waveguide allows a greater flexibility in lighting system configurations, such as hanging lighting fixtures, desk lighting fixtures, floor standing lighting fixtures, desk lamps, track lighting, spot lighting, accent lighting, lighting panels, inspection lamps and endoscopes.Type: GrantFiled: March 17, 2010Date of Patent: September 17, 2013Assignee: Intematix CorporationInventor: Yi-Qun Li
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Patent number: 8529080Abstract: Provided are a lamp fixing member, a backlight assembly having the same, and a display apparatus having the backlight assembly. The lamp fixing member includes a body that has a shape corresponding to a shape of the outer surface of the lamp, wherein a portion of the body is opened for fixing the outer surface of the lamp, and a fixing portion that has a coupling hole for fixing the body, the fixing portion being coupled to the body. It is possible to more easily couple and/or separate the lamps by means of the lamp fixing member which is easily fixed to a designated location of the lamp, and to couple the lamps at designated locations.Type: GrantFiled: September 14, 2007Date of Patent: September 10, 2013Assignee: LG Display Co., Ltd.Inventor: Joon Seok Ahn
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Patent number: 8529077Abstract: There is provided an illuminator comprising: a light source that radially emits white lights in a forward direction; and a lens sheet that is arranged facing the light source and that has a plurality of prisms on one side thereof concentrically at an optical axis so as to control orientation of the white lights that are emitted from the light source, wherein the light source is composed of: a luminous element that emits lights with a predetermined wavelength; and a sealing body that covers the luminous element and that includes phosphors therewith, the phosphors being adapted to receive the lights with the predetermined wavelength which are emitted from the luminous element so as to emit fluorescence, and the lens sheet includes prisms that have focal distances each different from the prisms adjacent thereto.Type: GrantFiled: August 24, 2011Date of Patent: September 10, 2013Assignee: Minebea Co., Ltd.Inventors: Shingo Suzuki, Masaki Asai
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Patent number: 8454183Abstract: A lamp clip 20 holds at least one of a plurality of cold cathode tubes 18 that are arranged parallel to each other. The lamp clip 20 includes a pair of arms 30, 31 configured so as to extend along a parallel arrangement direction of the cold cathode tubes 18. The parallel arrangement direction extends from one cold cathode tube 18 to another. The arms 30, 31 have distal ends separated from each other to from an opening 33. The opening 33 allows insertion and removal of the cold cathode tube 18 therethrough, and the arms 30, 31 hold the cold cathode tube 18 therebetween. A plurality of light source receiving surfaces 32 that receive the cold cathode tube 18 are provided so as to be along the parallel arrangement direction on at least one of surfaces of the arms 30, 31 facing the cold cathode tube 18.Type: GrantFiled: February 17, 2009Date of Patent: June 4, 2013Assignee: Sharp Kabushiki KaishaInventor: Yasunari Hisada
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Patent number: 8449165Abstract: The present invention relates to a backlight module having housing provided with groove structure, wherein the backlight module comprises: a housing, a plurality of LED chips, a thermal conductive layer, a reflector, and a light guide plate. In which, the housing has a groove formed on a housing bottom thereof, and the circuit layer is disposed in the groove through a first thermally conductive insulating layer. In addition, the plurality of LED chips are disposed in the housing and welded on the circuit layer. In the present invention, the circuit layer and the LED chips are disposed in the groove of the housing, therefore, when mass producing the backlight module, it is able to ensure that the position of LED chips would correspond to the circuit layer in the housing, such that each the backlight module manufactured by mass production can be used for providing a stable light source.Type: GrantFiled: September 1, 2011Date of Patent: May 28, 2013Assignee: Kocam International Co. Ltd.Inventor: Tsan-Jung Chen
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Patent number: 8439514Abstract: A lighting unit 12 of the present invention includes a light source 17, a chassis that covers the light source 17 and a vibration absorber 70 provided in a mat-like form and arranged between the light source 17 and the chassis 14. The vibration absorber 70 is made of gelatinous material. With this configuration, the vibration absorber 70 blocks vibration propagation from the light source 17 to the chassis 14. As a result, a roaring sound is properly eliminated or reduced.Type: GrantFiled: February 17, 2009Date of Patent: May 14, 2013Assignee: Sharp Kabushiki KaishaInventor: Shiyoshi Cho
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Patent number: 8436876Abstract: Provided are a backlight unit and a display device having the same. The backlight unit includes a case having an opening, at least one lamp assembly disposed on a side surface of the case and including a light source, an optical transreflective unit on the case, the optical transreflective unit transmitting a portion of first light passing through the opening and reflecting a portion of second light generated from the light source, and an optical sheet including a first diffusion unit on the optical transreflective unit.Type: GrantFiled: October 18, 2012Date of Patent: May 7, 2013Assignee: LG Display Co., Ltd.Inventors: Ho Young Jeong, Deuk Su Lee, Jun Hyeok Yu, Jae Jung Han, Mi Young Do, Tae Han Kim
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Patent number: 8393777Abstract: Some embodiments provide luminance-preserving non-imaging backlights that comprise a luminous source emitting light, an input port that receives the light, an injector and a beam-expanding ejector. The injector includes the input port and a larger output port with a profile that expands away from the input port acting via total internal reflection to keep x-y angular width of the source image inversely proportional to its luminance. The injector is defined by a surface of revolution with an axis on the source and a swept profile that is a first portion of an upper half of a CPC tilted by its acceptance angle. The beam-expanding ejector comprising a planar waveguide optically coupled to the output port of the injector. The ejector includes a smooth upper surface, and a reflective lower surface comprising microstructured facets that refract upwardly reflected light into a collimated direction common to the facets.Type: GrantFiled: July 28, 2006Date of Patent: March 12, 2013Assignee: Light Prescriptions Innovators, LLCInventors: Juan Carlos Minano, Pablo Benitez, Julio Cesar Chaves, Waqidi Falicoff, William A. Parkyn
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Publication number: 20130050616Abstract: A light emitting unit and a liquid crystal display apparatus including the same are provided. The light emitting unit includes a light source unit which generates light, and a driving board which drives the light source unit. The light source unit includes a light source which generates the light, a container member which forms an opening therein and which contains the light source within the opening, and a fluorescent member mounted in the opening of the container member. The light source and the florescent member are spaced apart.Type: ApplicationFiled: March 16, 2012Publication date: February 28, 2013Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jeong-phil SEO, Gil-tae HUR, Yong-hun KWON, Kye-hoon LEE, Young-min LEE, Kun-ho CHO, Suk-ju CHOI
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Publication number: 20130021538Abstract: A lighting device includes a cold cathode fluorescent tube (CCFT), a chassis housing the CCFT, and a lamp clip. The chassis includes at least three mounting through holes at least one of which is arranged on a first line and a second line. The first line and the second line are separately extending in a direction substantially perpendicular to an axial direction of the CCFT, whereby the mounting through holes are asymmetrically arranged. The lamp clip includes a main body, a lamp gripping portion capable of gripping the CCFT, and at least three mounting portions protruding from the main body. At least one of the mounting portions is each arranged on the first line and the second line, whereby the mounting portions are asymmetrically arranged. The mounting portions on the first and second lines are passed through the mounting through holes on the first and second lines, respectively.Type: ApplicationFiled: February 16, 2011Publication date: January 24, 2013Applicant: SHARP KABUSHIKI KAISHAInventor: Yasumori Kuromizu
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Patent number: 8337042Abstract: A liquid crystal module includes a lamp socket and a lamp frame. The lamp socket has a holding part holding a cold cathode tube which is inserted into the holding part through a silt. The slit is formed on a part of a face of the lamp socket. The lamp frame fixes the lamp socket to a rear frame so as to cover the lamp socket. A supporting part is formed on a face of the lamp frame and contacts the face of the lamp socket. A part of the face of the lamp frame opposing the part of the face of the lamp socket where the slit is formed is cut out.Type: GrantFiled: June 14, 2010Date of Patent: December 25, 2012Assignee: Funai Electric Co., Ltd.Inventor: Tatsuji Sudo
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Patent number: 8322903Abstract: A light source module includes a casing, at least one reflective layer, a light bar, and at least one light source. The casing has a first side wall and a second side wall, and the first side wall and the second side wall define an opening. The opening faces a light incident surface of a light guide plate, and the first side wall and the second side wall are respectively positioned on two opposite sides of the opening. The reflective layer is formed inside the casing and adjacent to one of the first side wall and the second side wall. The light bar is disposed inside the casing and forms an angle with the light incident surface of the light guide plate.Type: GrantFiled: November 24, 2010Date of Patent: December 4, 2012Assignee: Young Lighting Technology Inc.Inventors: Jui-Nien Jao, Chien-Hao Fu, Chao-Min Yang
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Patent number: 8317366Abstract: A light distributor includes a panel (202) having a textured surface (206) and a light distribution surface. A number of LEDs (204) are located in proximity to the textured surface. Some of the light (208, 212) impinging on the textured surface (206) is refracted or reflected (214, 216) into the panel (202) from where it can be transmitted through the distribution surface.Type: GrantFiled: April 28, 2006Date of Patent: November 27, 2012Assignee: Eveready Battery Company, Inc.Inventors: David R. Dalton, Patrick Michael Conrick, David John Alessio
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Patent number: 8305515Abstract: Provided are a backlight unit and a display device having the same. The backlight unit includes a case having an opening, at least one lamp assembly disposed on a side surface of the case and including a light source, an optical transreflective unit on the case, the optical transreflective unit transmitting a portion of first light passing through the opening and reflecting a portion of second light generated from the light source, and an optical sheet including a first diffusion unit on the optical transreflective unit.Type: GrantFiled: December 26, 2007Date of Patent: November 6, 2012Assignee: LG Display Co., Ltd.Inventors: Ho Young Jeong, Deuk Su Lee, Jun Hyeok Yu, Jae Jung Han, Mi Young Do, Tae Han Kim
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Patent number: 8297794Abstract: The method is for directing light in a fluorescent piece. Sequentially placed wedge-shaped pieces form a multiple-piece arrangement. Each piece has a base surface and a sloping top surface so that there is a first pointed end at one end and a short end surface at a second opposite end thereof. The pieces are exposed to light beams that hit fluorescent particles disposed inside the pieces. As a result, the particles emit a fluorescent light that are reflected off the inner surfaces of each piece as long as the light beams do not hit the surface at a perpendicular angle. The light beams are directed to penetrate the short end of each piece to form a continuous illuminated surface.Type: GrantFiled: July 28, 2009Date of Patent: October 30, 2012Inventor: Kurt Persson
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Patent number: 8206023Abstract: A backlight assembly and a display device including the backlight assembly are provided for one or more embodiments, where the display device is slim, lightweight, and requires low manufacturing costs because the device integrates a receiving container and a light generating unit cover member. According to an embodiment, the backlight assembly includes a first light generating unit, a wire electrically connected to the first light generating unit, a first fixing member including a groove to fix the first light generating unit and a wire outlet, and a receiving container comprising a light generating unit cover member. The first fixing member includes a protruding portion extending outwardly from the receiving container and the wire outlet formed on the protruding portion.Type: GrantFiled: September 8, 2009Date of Patent: June 26, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Sang-Min Kang, Jun-Hee Son, Kyeong-Min Kim
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Patent number: 8123390Abstract: A backlight assembly includes a plurality of lamps, a receiving container, a diffuser plate and a plurality of holding members. The lamps generate a light. The receiving container receives the lamps. The receiving container includes a bottom portion and a side portion protruded from a side of the bottom portion. The diffuser plate is over the lamps to diffuse the light generated from the lamps. The holding members are engaged with the bottom portion. Each of the holding members has a lamp holding portion that holds one of the lamps. 10 The lamp holding portion has an opening for receiving the lamp. The opening is inclined by a first angle with respect to a normal line of the bottom portion. Therefore, the lamps are securely combined with the lamp holding portion, and the lamps are easily assembled to protect the lamps from an externally provided impact.Type: GrantFiled: June 22, 2005Date of Patent: February 28, 2012Assignee: Samsung Electronics Co., Ltd.Inventor: Yong-Woo Lee
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Patent number: 8085361Abstract: A liquid crystal module includes a rear frame, a light reflecting sheet, a plurality of U-shaped cold cathode tubes, an optical sheet and a liquid crystal panel. The light reflecting sheet is disposed on the rear frame. The U-shaped cold cathode tubes are disposed above the light reflecting sheet and arranged parallel to each other. Each of the U-shaped cold cathode tubes includes a U-shaped bent part and a pair of end portions extending from the U-shaped bent part. Widths of the U-shaped bent parts of the U-shaped cold cathode tubes are different from each other. Overall lengths of the U-shaped cold cathode tubes from one end portions to the other end portions along the U-shaped cold cathode tubes are equal to each other. The optical sheet is disposed above the U-shaped cold cathode tube. The liquid crystal panel is disposed above the optical sheet.Type: GrantFiled: December 29, 2008Date of Patent: December 27, 2011Assignee: Funai Electric Co., Ltd.Inventor: Tatsuji Sudo
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Patent number: 8083391Abstract: A planar light source of the present invention has three lamps along a side face of a rectangular light guide plate. The lamps are arranged along an incidence plane which is one side plane of the light guide plate. The three lamps are arranged so as to be kept apart from each other at a given interval, and two lamps are arranged in close proximity to the incidence plane that is one side plane of the light guide plate. One lamp is arranged away from the incidence plane that is one side plane of the light guide plate with respect to the two lamps. A lamp reflector is formed continuously so as to become close to the three lamps and surround the respective three lamps, and assumes a substantially convex cross-sectional shape.Type: GrantFiled: November 16, 2007Date of Patent: December 27, 2011Assignee: Mitsubishi Electric CorporationInventor: Shigeyuki Matsumoto
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Patent number: 8079745Abstract: An embodiment of the present invention relates to a backlight module comprising a back plate, a light guide plate provided on the back plate and a light source provided at a side of the light guide plate. A side and lower surface of the light guide plate facing the lamp tubes is a concave surface. The weight of the backlight module and the cost can be largely reduced without change of the light efficiency.Type: GrantFiled: August 19, 2009Date of Patent: December 20, 2011Assignee: Beijing Boe Optoelectronics Technology Co., Ltd.Inventor: Yan Chen
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Publication number: 20110305041Abstract: A guide light plate structure includes a light guide plate and a fluorescent layer. The light guide plate includes a light incident surface, a bottom surface, and a light emitting surface opposite to the bottom surface. The fluorescent layer is formed on the bottom surface. The fluorescent layer is conFIGUREd for being excited by the incident light to emit white light toward the light emitting surface.Type: ApplicationFiled: July 29, 2010Publication date: December 15, 2011Applicant: HON HAI PRECISION INDUSTRY CO., LTD.Inventor: Sei-Ping LOUH
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Patent number: 8057066Abstract: A backlight assembly and a display apparatus having the backlight assembly are disclosed. A diffusion plate is provided above a plurality of lamps. Diffusion patterns that cause contrast inversion and diffusion patterns that do not cause contrast inversion are arranged on a surface of a diffusion plate, in an alternating manner along a longitudinal direction of the lamps. Thus, a brightness difference between a first area in which the lamps are positioned and a second area between two adjacent lamps is reduced, thereby improving a brightness uniformity of light from the backlight assembly.Type: GrantFiled: July 21, 2009Date of Patent: November 15, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Byung-Yun Joo, Min-Young Song, Sang-Hoon Lee, Dong-Kwan Kim, Jin-Sung Choi
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Patent number: 8059214Abstract: Fluorescent tubes are arranged such that their arrangement spaces gradually become wider in central area than in edge areas, fluorescent tubes located in the vicinity of the central area of an arrangement direction are bent into chevron-shapes such that the central parts of the longitudinal directions of the fluorescent tubes become crests which provide access to a diffusion plate, respective two adjacent fluorescent tubes which are straight tubes are connected to one another, thereby constituting pseudo U-shaped tubes, and an AC power is supplied through terminals lined up along one side of a direct-type backlight device. A reflector plate is bent so as to match with the curvature of the bent fluorescent tubes, and is formed with a protrusion which allows the fluorescent tubes located in the vicinity of the central area of the arrangement direction to be raised so as to protrude toward a diffusion plate.Type: GrantFiled: March 26, 2007Date of Patent: November 15, 2011Assignee: Funai Electric Co., Ltd.Inventor: Masaharu Oka
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Patent number: 8002454Abstract: Backlight assembly includes a plurality of light guide plates, a plurality of light modules, and a plurality of driving units separately in control of corresponding light modules which are configured at the incident sides of the LGPs. Each light module faces two adjacent LGPs such that the driving unit drives the light module to provide light for two adjacent LGPs at the same time. As local dimming function is switched, besides the power-saving and the high contrast, the local edge effect due to the joint of the LGPs can be reduced.Type: GrantFiled: February 23, 2009Date of Patent: August 23, 2011Assignee: AU Optronics Corp.Inventors: Ming-Lung Chen, Chih-Kang Tung, Chih-Wei Chang
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Patent number: 7993028Abstract: A backlight module includes a case, a lamp, and a lamp clamping mechanism. The case has a bottom plate. The lamp is installed inside the case. The lamp clamping mechanism is connected to the bottom plate. The lamp clamping mechanism includes a base, a second clamping part, and a driving part. A first clamping part is disposed on the base. The second clamping part is installed on the base in a movable manner. The second clamping part is used for clamping the lamp with the first clamping part cooperatively when the second clamping part is moved to a first position so as to fix the lamp on the bottom plate. The driving part is pivotally disposed through the base. The driving part is used for rotating relative to the base so as to push the second clamping part from a second position to the first position on the base.Type: GrantFiled: December 15, 2008Date of Patent: August 9, 2011Assignee: Chunghwa Picture Tubes, Ltd.Inventor: Min-Lun Wu
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Patent number: RE44197Abstract: The display device lighting unit comprises a light source lamp and a lamp holder, which has one or an arbitrary combination of the following features: (1) the lamp holder comprises a plurality of supporting members at least partly integrated, (2) the light source lamp or lamps have a curved portion and each is supported by supporting members of the lamp holder or holders at least partly at the respective curved portions, (3) the lamp holder has, for example, projections, depressions and so on that reduces the supporting area of the supporting members, (4) means for fixing the lamp holder within the display device lighting unit after the fixation of light source lamp on the supporting members of the lamp holder or holders in which at least one fixing member of the lamp holder or holders have a structure resulting from division into two.Type: GrantFiled: December 8, 2010Date of Patent: May 7, 2013Assignee: Sharp Kabushiki KaishaInventors: Satoshi Ono, Mitsuhiro Takeguchi