Having Solid-state Light Source Patents (Class 362/97.3)
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Patent number: 8902382Abstract: The present invention includes: a heat dissipation plate (4) that has an upper surface on which an LED chip (3) is provided and that dissipates heat generated by the LED chip (3); a reflecting plate (7) for reflecting light emitted from the LED chip (3); and a substrate (2) provided between the heat dissipation plate (4) and the reflecting plate (7), the heat dissipation plate (4) and the reflecting plate (7) being integrally formed by bonding at a bonding section (12), the heat dissipation plate (4) and the substrate (2) being bonded to each other at a bonding section (20), the heat dissipation plate (4) and the reflecting plate (7) each having a surface covered by a conductor pattern (13).Type: GrantFiled: November 26, 2010Date of Patent: December 2, 2014Assignee: Sharp Kabushiki KaishaInventor: Kenji Takase
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Patent number: 8899771Abstract: A backlight device 12 includes: a chassis having a bottom plate and side plates that stand towards the front of the bottom plate from the edges of the bottom plate, the face on one side of the bottom plate being a light-output part; an LED substrate disposed on the front surface of the bottom plate; LEDs 24 arranged on a plate face oriented toward the light-output part of the LED substrate and arranged so that the light-output part is on the light-emitting side thereof; a plurality of diffusion lenses 27 for covering the light-emitting side of the plurality of LEDs and diffusing the light from the LEDs 24; a first reflecting sheet 29 provided with light source insertion holes through which the LEDs 24 are inserted at positions corresponding to the LEDs 24, the first reflecting sheet being laid over the front surface of the bottom plate and over the LED substrate; and a second reflecting sheet 30 arranged so as to protrude in the direction in which the side plates rise, the ends of the second reflecting sheetType: GrantFiled: November 26, 2012Date of Patent: December 2, 2014Assignee: Sharp Kabushiki KaishaInventors: Hiroki Fukai, Ryo Yamakawa
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Patent number: 8899793Abstract: Disclosed herein are an illumination unit and an illumination system. The illumination unit includes a first reflector, a second reflector, a light source module arranged between the first reflector and the second reflector, and a supporting member for supporting the second reflector. The supporting member includes first and second inclined surfaces arranged adjacent to each other at opposite sides of an inflection point. The supporting member has a distance of 15 to 50 mm between a first horizontal line horizontally passing through the inflection point and a second horizontal line horizontally passing through an end of the first inclined surface or an end of the second inclined surface. The supporting member includes projections having asymmetrical side surfaces opposing each other. The height ratio between the side surfaces of the supporting member is 1:1.01 to 80 or 1.01 to 80:1.Type: GrantFiled: February 20, 2013Date of Patent: December 2, 2014Assignee: LG Innotek Co. Ltd.Inventors: Ui Youn Jung, Young Bae Jang
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Patent number: 8894263Abstract: A display apparatus includes a light source, a display panel and an optical plate between the light source and the display panel. The optical plate includes a supporting sheet, a first, a second and a third optical layer. The first optical layer is disposed on a bottom surface of the supporting sheet and has a plurality of first protruding portions on a bottom surface of the first optical layer and has a first refractive index. The second optical layer is disposed on the bottom surface of the first optical layer and covers the first protruding portions. The second optical layer has a second refractive index larger than the first refractive index. The third optical layer is disposed on a top surface of the supporting sheet and has a plurality of second protruding portions on a top surface and has a third refractive index smaller than the second refractive index.Type: GrantFiled: September 2, 2011Date of Patent: November 25, 2014Assignee: Samsung Display Co., Ltd.Inventors: Dong-Yeol Yeom, Yongkyu Kang, Seunghwan Chung
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Publication number: 20140340876Abstract: A light emitting device package including light emitting devices, and optical lenses respectively disposed over the light emitting devices. Further, a respective optical lens includes an extending member extending from a body of the respective optical lens, and including a first portion laterally extending in a first direction substantially perpendicular to the central axis of the respective light emitting device, and a second portion extending towards the substrate in a second direction substantially parallel with the central axis of the respective light emitting device. A vertical cross section of the second portion is substantially symmetrical with respect to an axis that is spaced apart in the first direction from and substantially parallel with the central axis of the respective light emitting device.Type: ApplicationFiled: July 31, 2014Publication date: November 20, 2014Inventors: Jung Hoon SEO, Jun Ho JANG
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Patent number: 8888351Abstract: A display apparatus and a backlight assembly are provided. The display apparatus includes a display panel; and a backlight unit disposed on a rear surface of the display panel and discharging light to the display panel, the backlight unit comprising white light emitting diodes (LEDs) and Quantum Dot (QD) LEDs.Type: GrantFiled: March 26, 2012Date of Patent: November 18, 2014Assignee: Samsung Electronics Co., Ltd.Inventors: Young-min Lee, Kye-hoon Lee, Kun-ho Cho, Jeong-phil Seo, Yong-hun Kwon, Gil-tae Hur, Suk-ju Choi
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Patent number: 8882296Abstract: A light emitting diode (LED) module and a display device adopting the same LED module are provided. The LED module includes a circuit substrate, a LED chip, a connector and a conductive line. The LED chip has at least three pins, and the LED chip is fixed on the circuit substrate through the pins, wherein one of the pins is defined as a no connection (NC) pin. The connector includes a non-conductive housing, at least one fixing pin and a conductor. The fixing pin is connected to the non-conductive housing, and the non-conductive housing is fixed on the circuit substrate through the said at least one fixing pin. A part of the non-conductive housing is covered with the conductor. The conductive line is disposed on the circuit substrate and is electrically connected between the conductor and the NC pin.Type: GrantFiled: April 3, 2012Date of Patent: November 11, 2014Assignee: Au Optronics Corp.Inventors: Sheng-Wen Chen, Wen-Kuei Liu, Yu-Min Hung, Tsai-Fen Lee, Yung-Hsiang Tsao
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Patent number: 8884326Abstract: In accordance with certain embodiments, semiconductor dies are embedded within polymeric binder to form, e.g., light-emitting dies and/or composite wafers containing multiple light-emitting dies embedded in a single volume of binder.Type: GrantFiled: March 25, 2014Date of Patent: November 11, 2014Assignee: Cooledge Lighting Inc.Inventor: Michael A. Tischler
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Patent number: 8885120Abstract: A color Liquid Crystal display (LCD) device for displaying a color image using at least four different primary colors, the device including an array of Liquid Crystal (LC) elements, driving circuitry adapted to receive an input corresponding to the color image and to selectively activate the LC elements of the LC array to produce an attenuation pattern corresponding to a gray-level representation of the color image, and an array of color sub-pixel filter elements juxtaposed and in registry with the array of LC elements such that each color sub-pixel filter element is in registry with one of the LC elements, wherein the array of color sub-pixel filter elements comprises at least four types of color sub-pixel filter elements, which transmit light of the at least four primary colors, respectively.Type: GrantFiled: April 15, 2008Date of Patent: November 11, 2014Assignee: Genoa Color Technologies Ltd.Inventors: Ilan Ben-David, Shmuel Roth, Moshe Ben-Chorin
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Patent number: 8885119Abstract: A backlight assembly of a Liquid Crystal Display (LCD) is provided with improved heat dissipation capabilities. The improved dissipation capabilities come from one or more light-sourcing unit fixing frames that have extensions which protrude to outside a housing that houses light sourcing units of the LCD. The light-sourcing unit fixing frames mechanically interlock with the housing.Type: GrantFiled: March 6, 2014Date of Patent: November 11, 2014Assignee: Samsung Display Co., Ltd.Inventors: Cheol Yong Noh, Jae Chang Choi, Seong Sik Choi
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Patent number: 8876316Abstract: A backlight module is provided, including a back plate, a diffusion plate, multiple lighting bars mounted on the back plate and at least one lighting module mounted on each of the lighting bars, where each of the lighting modules has an LED forward light source and at least one pair of LED non-forward light sources, and the pair of LED non-forward light sources is mounted on the side of the LED forward light source, and light emitted from the LED forward light source and light emitted from each of the pair of LED light sources are spliced together to form a diffusing light shape. Therefore, the backlight module of the present invention has reduced lighting bars to decrease the weight, volume and cost of the whole backlight module and liquid-crystal display device, and overcome the problems of non-uniform brightness of conventional backlight modules.Type: GrantFiled: November 29, 2012Date of Patent: November 4, 2014Assignee: Unity Opto Technology Co., Ltd.Inventors: Ko-Wei Lu, Ping-Chen Wu, Wei-Chung Lin, Yi-Yu Tsai
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Patent number: 8876319Abstract: Disclosed are a backlight unit and a display apparatus using the same. The backlight unit includes a light guide plate, grooves disposed in the light guide plate, the grooves having at least one inclined surface, light source modules disposed within the grooves, and stoppers disposed between the light source modules and the light guide plate, wherein a cross-sectional area of the grooves is larger than that of the stoppers. The stoppers contact at least one of the side surfaces of the grooves, the bottom surfaces of the grooves and the light source modules.Type: GrantFiled: March 7, 2012Date of Patent: November 4, 2014Assignee: LG Innotek Co., Ltd.Inventors: Min Sang Kim, Moon Jeong Kim, Jeong Hwan Kim, Jung In Seo, Duk Hyun Yun, Sang Hyeok Jung
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Patent number: 8876320Abstract: A direct type backlight is provided in the disclosure and comprises: light emitting bodies; a reflecting sheet disposed below the light emitting bodies; a back plate disposed below the reflecting sheet; and a diffusing plate disposed above the light emitting bodies, wherein the backlight further comprises a reflection-enhancing layer disposed between the diffusing plate and the light emitting bodies, and the transflective layer has, on a side thereof facing the light emitting bodies, a reflectivity that is greater than a reflectivity of the diffusing plate and smaller than 1.Type: GrantFiled: March 20, 2012Date of Patent: November 4, 2014Assignees: Boe Technology Group Co., Ltd., Suzhou Boe Chatani Electronics Co., Ltd.Inventor: Wentao Ying
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Patent number: 8870402Abstract: A backlight assembly includes a first light emitting unit having a first light emitting diode, a second light emitting unit having a second light emitting diode, a third heat conduction member, and a receiving container accommodating the first light emitting unit and the second light emitting unit. The first light emitting unit includes a first heat conduction member connected to the first light emitting diode to absorb a heat from the first light emitting diode, and the second light emitting unit includes a second heat conduction member connected to the second light emitting diode to absorb a heat from the second light emitting diode. A third heat conduction member is connected to the first and second heat conduction members to discharge the heats from the first and second light emitting diodes.Type: GrantFiled: August 5, 2011Date of Patent: October 28, 2014Assignee: Samsung Display Co., Ltd.Inventors: Juyoung Yoon, Hee-Kwang Song
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Publication number: 20140313698Abstract: The exemplary embodiments herein provide a system for cooling an electronic display where a plate is positioned behind the electronic display, the space between the plate and the electronic display defining a first channel. A first fan is preferably positioned to force a first flow of external air through the first channel. A heat exchanger is preferably positioned adjacent to the plate where the space between the heat exchanger and the plate defines a second channel; and a second fan is preferably positioned to force a second flow of external air through the second channel and through the heat exchanger. A continuous heat sink may be placed within the first channel. Pass through gaskets may be used to ensure the external air may cross paths with the circulating gas without permitted the external air and circulating gas to mix.Type: ApplicationFiled: March 7, 2014Publication date: October 23, 2014Applicant: MANUFACTURING RESOURCES INTERNATIONAL, INC.Inventors: William Dunn, Tim Hubbard, Ryan DeMars
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Patent number: 8864357Abstract: Disclosed are a light emitting device and a light unit including the same. The light emitting device includes a body having a cavity with an open upper portion, a protrusion protruding from an upper portion of the body, a plurality of lead electrodes in the cavity, and a light emitting diode provided in the cavity and electrically connected to the lead electrodes.Type: GrantFiled: March 29, 2011Date of Patent: October 21, 2014Assignee: LG Innotek Co., Ltd.Inventor: Tae Ho Kim
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Publication number: 20140307421Abstract: Provided is a display apparatus. The display apparatus may include a display panel and a backlight provided adjacent the display panel. The backlight may include an optical sheet provided adjacent the display panel, a reflector provided a prescribed distance from the optical sheet, at least one light emitting device provided adjacent the reflector, and a lens provided over a corresponding the light emitting device. The lens may include a lower recess formed on a bottom surface of the lens and provided a prescribed distance over the light emitting device, and an upper recess formed on a top surface of the lens and provided to vertically overlap the bottom recess. The lower recess may include an upper surface that extends from the side surface and having a prescribed shape and curvature. The upper recess may also include a lower surface having a prescribed shape and curvature.Type: ApplicationFiled: August 29, 2013Publication date: October 16, 2014Inventors: Kyungjoon LEE, UIHYUNG LEE, JUYOUNG JOUNG, WONDO KEE
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Patent number: 8858010Abstract: A display apparatus includes a display panel, a plurality of spaced apart point light sources outputting light and each having an orientation angle greater than or equal to about 50° and less than about 90°, and an optical plate interposed between the display panel and the point light sources. The optical plate has a base comprising front and rear surfaces and a plurality of convex sections formed on the front surface of the base. Each convex section has a cross section perpendicular to the front surface in which the cross section has a form of a segment of an ellipse including an arc of an ellipse and a chord linking both ends of the arc while satisfying an equation, 1.0 < b a < 2.5 , when a minor axis of the ellipse has a length of 2a, and a major axis of the ellipse has a length of 2b.Type: GrantFiled: May 24, 2011Date of Patent: October 14, 2014Assignee: Samsung Display Co., Ltd.Inventors: Juhwa Ha, Sang Hoon Lee, Young-Ran Son
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Patent number: 8860905Abstract: A light emitting diode (“LED”) backlight assembly. The LED backlight assembly has a bottom container which has a bottom plate and a side edge surrounding the bottom plate, a plurality of light emitting diode printed circuit boards (“LED-PCBs”) on the bottom plate, and a connector which is closely located to edge located LEDs. The connector of the LED-PCB is closely located to an LED driving board, which is disposed at a lateral space of a lateral part of the bottom container to limit a vertical thickness of the backlight light assembly.Type: GrantFiled: September 26, 2013Date of Patent: October 14, 2014Assignee: Samsung Display Co., Ltd.Inventors: Jin-Hee Park, Yong-Woo Lee, Won-Ju Kim, Yong-Il Kim
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Patent number: 8860058Abstract: A light emitting assembly comprising a solid state device coupleable with a power supply constructed and arranged to power the solid state device to emit from the solid state device a first, relatively shorter wavelength radiation, and a down-converting luminophoric medium arranged in receiving relationship to said first, relatively shorter wavelength radiation, and which in exposure to said first, relatively shorter wavelength radiation, is excited to responsively emit second, relatively longer wavelength radiation. In a specific embodiment, monochromatic blue or UV light output from a light-emitting diode is down-converted to white light by packaging the diode with fluorescent organic and/or inorganic fluorescers and phosphors in a polymeric matrix.Type: GrantFiled: August 23, 2012Date of Patent: October 14, 2014Assignee: Cree, Inc.Inventors: Bruce Baretz, Michael A. Tischler
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Patent number: 8858007Abstract: A display device may include a chassis, a flexible printed circuit board on the chassis, a semiconductor device on the flexible printed circuit board, and a supporting element on the flexible printed circuit board. The semiconductor device may be spaced apart from the supporting element. The supporting element may be configured to maintain contact between the chassis and the flexible printed circuit board.Type: GrantFiled: August 22, 2012Date of Patent: October 14, 2014Assignee: Samsung Electronics Co., LtdInventors: Young-Deuk Kim, Ji-Chul Kim, Se-Ran Bae, Eun-Seok Cho, Mi-Na Choi
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Patent number: 8858009Abstract: An object is to provided a lighting device in which damage due to friction between a reflection sheet and a light guide plate is reduced or suppressed even if a stress is applied toward the reflection sheet by a housing due to asperities of a bottom plate of the housing. A backlight unit 24 according to the present invention includes a light guide plate 20, an LED unit 32, a reflection sheet 26, a backlight chassis 22, and a cushion sheet 27. The light guide plate 20 has a light entrance surface 20a that is a side surface, a light exit surface 20b that is a plate surface, and an opposite surface 20c that is an opposite surface from the light exit surface 20b. The LED unit 32 is arranged opposite the light entrance surface 20a of the light guide plate 20. The reflection sheet 26 is arranged so as to be in contact with the opposite surface 20c of the light guide plate 20. The backlight chassis 22 holds at least the reflection sheet 26 and the light guide plate 20 therein.Type: GrantFiled: April 21, 2011Date of Patent: October 14, 2014Assignee: Sharp Kabushiki KaishaInventor: Yoshitake Ishimoto
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Patent number: 8858011Abstract: The backlight unit includes a plurality of light source groups, each of which includes at least one light source, and a light guide plate to guide light irradiated from the plurality of light source groups, and the light guide plate includes first grooves disposed in a first direction, the plurality of light source groups being disposed within the first grooves, and at least one second groove disposed in a second direction differing from the first direction.Type: GrantFiled: February 8, 2012Date of Patent: October 14, 2014Assignee: LG Innotek Co., Ltd.Inventors: Min Sang Kim, Jung In Seo
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Publication number: 20140293144Abstract: A display may have a color filter layer and a thin-film transistor layer. A layer of liquid crystal material may be located between the color filter layer and the thin-film transistor layer. A transparent conductive shielding layer may be formed on the lower surface of the thin-film transistor layer. Grounding structures may ground the transparent conductive shielding layer to a ground. The ground may be formed form metal traces on a flexible printed circuit. The display may have a backlight unit. Light-emitting diodes may be used to provide backlight for the backlight unit. The light-emitting diodes may be mounted on the flexible printed circuit. The grounding structures may be formed from a rectangular ring-shaped conductive tape or other conductive structures.Type: ApplicationFiled: April 1, 2013Publication date: October 2, 2014Applicant: Apple Inc.Inventor: Hopil Bae
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Patent number: 8845120Abstract: An LED unit U of the present invention includes an LED 17 that is alight source, a diffuser lens 19, a board reflection sheet 23 and a restriction member 27. The diffuser lens 19 is provided to face a light emitting surface 17a of the LED 17. The board reflection sheet 23 is provided to face a surface of the diffuser lens 19 that is closer to the LED 17 and is configured to reflect light. The restriction member 27 projects from the diffuser lens 19 toward the board reflection sheet 23 and restricts positional relationship between the diffuser lens 19 and the board reflection sheet 23.Type: GrantFiled: May 18, 2010Date of Patent: September 30, 2014Assignee: Sharp Kabushiki KaishaInventor: Masashi Yokota
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Patent number: 8847877Abstract: An outdoor readable liquid crystal display device (200) includes a liquid crystal panel (210), a backlight device (220) and a light source control device. The backlight device (220) includes a plurality of red light emitting diodes (220r), green light emitting diodes (220g) and blue light emitting diodes (220b). The light source control device is used to adjust the backlight device (220) based on the light intensity of ambient light. When the light intensity of ambient light is lower than a predetermined light intensity of the liquid crystal display device (200), the red light emitting diodes (220r), the green light emitting diodes (220g) and the blue light emitting diodes (220b) of the backlight device (220) are sequentially energized to emit lights at a predetermined time lag.Type: GrantFiled: December 18, 2013Date of Patent: September 30, 2014Assignee: Shanghai Tianma Micro-Electronics Co., Ltd.Inventors: Willem Den Boer, Xuhui Peng, Zhihua Ling, Zhongshou Huang
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Patent number: 8845119Abstract: A light emitting device (1) is configured to radiate light with an optical axis A at the center, and is provided with a light source (2), and a lens (3) that radially expands the light from light source (2). The light source (2) has a light emitting surface (21) extending in an X direction orthogonal to the optical axis A. The lens (3) is configured to have a greater refractive power in a Y direction orthogonal to the X direction than in the X direction. For example, the lens (3) has a light entrance surface (31) including an anamorphic curved surface with different curve forms between the X direction and the Y direction.Type: GrantFiled: January 21, 2011Date of Patent: September 30, 2014Assignee: Panasonic CorporationInventors: Tomoko Iiyama, Motonobu Yoshikawa, Daizaburo Matsuki
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Patent number: 8845177Abstract: The present invention provides a backlight module and a housing unit structure thereof. The backlight module includes a back plate having a first edge, a second edge, a third edge and a fourth edge. The edges of the back plate are provided with a housing including a plurality of housing unit structures. The housing unit structures have a strip shape or an L-shape, respectively, and are disposed on the back plate by connecting or spacing a distance to each others to assemble into a housing. The backlight module uses an adjustable modular design to adjust the number of the housing unit structures for being suitably applied to various backlight modules with different sizes. Except for reducing the use of material, the development cost and time of the backlight module can be saved.Type: GrantFiled: June 22, 2012Date of Patent: September 30, 2014Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.Inventors: Yicheng Kuo, Shih-Hsiang Chen, Gang Yu, Gege Zhou, Weifeng Chen
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Patent number: 8848131Abstract: An object of the present invention is to stably fix a light source board without using any screw. A backlight unit 12 according to the present invention includes an LED board 18 including an LED 17 as a light source, a chassis 14 that stores the LED board 18 and has an opening 14b through which light from the LED 17 exits, and a holding member 20 that extends in at least one direction along a plate surface of the LED board 18 and is fixed to the chassis 14 so as to hold the LED board 18 together with the chassis between the holding member 20 and the chassis 14.Type: GrantFiled: April 6, 2010Date of Patent: September 30, 2014Assignee: Sharp Kabushiki KaishaInventor: Masashi Yokota
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Patent number: 8840262Abstract: An LED includes a base, an LED chip, a first electrode, a second electrode, an encapsulating layer, and a reflective layer. The base forms a concave recessed from a top face thereof and a recess above the concave. The reflective layer is attached on the concave. The LED chip is received in the recess and located over the reflective layer. The LED chip has a light output face facing towards the reflective layer. The encapsulating layer is filled in the recess to cover the reflective layer and encapsulate the LED chip. The reflective layer includes a first reflective layer and a second reflective layer. The first reflective layer is located at a center of the concave. The second reflective layer surrounds and connects the first reflective layer. The first reflective layer has a curvature smaller than that of the second reflective layer.Type: GrantFiled: July 27, 2012Date of Patent: September 23, 2014Assignee: Advanced Optoelectronic Technology, Inc.Inventors: Chao-Hsiung Chang, Hou-Te Lin
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Publication number: 20140267938Abstract: A display system, having an emissive body, emitting light over a complete surface as part of a display system. The emissive body can be a FIPEL type device with a first transparent conductive coating over a light emitting substrate. A transparent substrate, has first and second surfaces, with the first surface coupled to the first transparent conductive coating, and the second surface of said transparent substrate including a surface formed with plural light channeling structures thereon.Type: ApplicationFiled: March 13, 2013Publication date: September 18, 2014Applicant: VIZIO INCInventor: Matthew McRae
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Patent number: 8833958Abstract: The present invention provides a direct backlight module including a backplane, backlight sources arranged inside the backplane, and a diffusion plate mounted to the backplane and located above the backlight sources. The backplane includes a bottom plate, side plates connected to the bottom plate, and mount units formed on the bottom plate and each having first and second slope surfaces that are inclined in opposite directions. The backlight sources are respectively mounted to the first and second slope surfaces, whereby the backlight sources are set inclined with respect to the diffusion plate in order to increase the distance available for light mixing, improve intensity and homogeneity of illumination, and at the same time reduce the quantity of LED lamps used to reduce the manufacture cost and facilitate size thinning of the backlight module.Type: GrantFiled: April 18, 2012Date of Patent: September 16, 2014Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.Inventor: Jianfa Huang
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Patent number: 8833957Abstract: An illumination system includes a light source unit including a light source and a circuit substrate electrically connected to the light source. The light source is placed in the circuit substrate such that at least part of the light source overlaps the circuit substrate in the thicknesswise direction of the circuit substrate.Type: GrantFiled: December 8, 2011Date of Patent: September 16, 2014Assignee: Epson Imaging Devices CorporationInventors: Junya Mita, Yoshinori Momose, Akemi Maruyama, Shintaro Hama
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Patent number: 8833956Abstract: A lighting device includes a light source, a chassis housing the light source, and a reflection sheet provided in the chassis. The reflection sheet includes a bottom portion and a sloped portion. The bottom portion extends along a surface of the bottom plate and the sloped portion extends from a peripheral edge of the bottom portion. The sheet sloped portion is inclined with respect to the sheet bottom portion toward a light exit side of the lighting device. The reflection sheet includes a border portion and an adjacent portion. The border portion includes a borderline between the bottom portion and the sloped portion and an area along the borderline, and the adjacent portion is provided close to the border portion and on a side far away from the borderline. Light reflectance is higher in the border portion than in the adjacent portion on the surface of the reflection sheet.Type: GrantFiled: October 29, 2010Date of Patent: September 16, 2014Assignee: Sharp Kabushiki KaishaInventor: Shinji Matsumoto
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Patent number: 8827478Abstract: A backlight unit which is a lighting device is provided with: a diffusion plate; a chassis having rising sections which are provided at the outer periphery of the main flat surface thereof and supporting the diffusion plate; light-emitting modules disposed at the main flat surface and the rising sections of the chassis and applying light to the diffusion plate; and reflecting sheets disposed at the main flat surface and the rising sections of the chassis and reflecting the light, which is emitted from the light-emitting modules, toward the diffusion plate. The reflecting sheets have formed thereon sloped sections for reflecting, toward the diffusion plate, the light emitted from the light-emitting modules disposed at the rising sections.Type: GrantFiled: June 16, 2010Date of Patent: September 9, 2014Assignee: Sharp Kabushiki KaishaInventor: Yasumori Kuromizu
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Patent number: 8827480Abstract: Uneven brightness is less likely to occur in a backlight unit. In a backlight unit 12, suppose that a maximum value and a minimum value of light reflectance of at least a first surface 30a of a diffuser plate 30 facing a hot cathode tube 17 are defined as Rmax Rmin, respectively, a rising proximal position BP of each rising portion 20b of a reflection sheet 20 is provided to overlap with an area of the diffuser plate 30 having light reflectance R that satisfies the Expression given below, and a rising distal position EP of each rising portion 20b is provided not to overlap with an area of the diffuser plate 30 having the light reflectance R that satisfies the Expression given below.Type: GrantFiled: August 19, 2010Date of Patent: September 9, 2014Assignee: Sharp Kabushiki KaishaInventor: Yasumori Kuromizu
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Patent number: 8827479Abstract: There is provided a display device including a light-emitting element package, in which a plurality of light-emitting elements emitting light of different colors are arranged vertically and horizontally, is disposed on a base substrate having a plane shape in a vertical direction and an arc shape in a horizontal direction.Type: GrantFiled: June 28, 2012Date of Patent: September 9, 2014Assignee: Sony CorporationInventors: Izushi Kobayashi, Hisao Sakurai, Hiroyuki Yanagisawa, Hisaharu Katou, Shigeru Teshigahara
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Patent number: 8827473Abstract: A driver information system is provided for a vehicle having at least one instrument, which has a front plate and an illumination device. At least one light-transmitting area is arranged in the front plate and the illumination device is arranged behind the front plate, the illumination device being able to emit light through the at least one light-transmitting area of the front plate. A polarization filter is arranged between the front plate and the illumination device. The polarization filter is oriented opposite to a polarization direction of a windshield of the vehicle.Type: GrantFiled: December 22, 2011Date of Patent: September 9, 2014Assignee: GM Global Technology Operations LLCInventors: Peter Brandt, Heiko Charle, Georg Bauer
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Patent number: 8829776Abstract: There are provided a light-source circuit unit, an illumination device, and a display device which are capable of extracting light emitted from the back surface of a light-emitting element chip to the front surface, suppressing a reduction in reflectance, and reducing cost, with a simple configuration. The light-source circuit unit includes a circuit substrate that has a light-reflective wiring pattern on a surface thereof and includes a chip mounting layer as a part of the wiring pattern, and one or more light-emitting element chips that are directly placed on the chip mounting layer, and are driven by a current flowing through the wiring pattern.Type: GrantFiled: March 23, 2012Date of Patent: September 9, 2014Assignee: Sony CorporationInventors: Koichi Yamamoto, Takehito Hirose, Shigeru Teshigahara
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Patent number: 8827492Abstract: To provide a back light unit that reduces an uneven brightness and has a spatially uniform brightness distribution. According to an aspect of the present invention, the back light unit comprises an LED and a light guide plate for guiding light from the LED to a liquid crystal panel side, wherein a recess is provided on the back surface side of the light guide plate, wherein a plurality of LEDs are housed in the recess, and wherein a light amount limiting member is provided at a position facing the recess on s light exit surface side of the light guide plate. The light amount limiting member is configured, for example, by applying an ink with a predetermined optical property to a transparent sheet.Type: GrantFiled: November 17, 2011Date of Patent: September 9, 2014Assignee: Hitachi Consumer Electronics Co., Ltd.Inventors: Shoji Yamamoto, Satoshi Ouchi, Mayumi Nagayoshi, Hajime Inoue
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Patent number: 8821004Abstract: A flat panel display device includes a backlight system and a display panel, wherein: the backlight system includes a light source, a light homogenization mechanism, and a back frame; the back frame carries the light source and the light homogenization mechanism and the back frame includes at least first and second primary assembling pieces, wherein the first primary assembling piece has an end forming at least two joint sections, each of the joint sections having a structure mating an end of the second primary assembling piece, the first primary assembling piece using one of the joint sections to join the corresponding end of the second primary assembling piece. The back frame further includes secondary assembling pieces. The primary assembling pieces and/or the secondary assembling pieces form bumps. A stereoscopic display device and a plasma display device are also provided.Type: GrantFiled: November 23, 2011Date of Patent: September 2, 2014Assignee: 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: 8823282Abstract: A light source apparatus according to the present invention includes: a plurality of light emitting substrates arranged in matrix form, each having at least one light source; an intermediate substrate provided between respective rows of the plurality of light emitting substrates; and a driving unit that outputs a drive signal for driving the light sources, wherein a first supply wiring for supplying the drive signal to the light source provided on each of the plurality of light emitting substrates is printed on each of the light emitting substrates, and a first connection wiring for electrically connecting the first supply wirings printed on two light emitting substrates sandwiching the intermediate substrate is printed on the intermediate substrate.Type: GrantFiled: September 13, 2012Date of Patent: September 2, 2014Assignee: Canon Kabushiki KaishaInventor: Masanao Kurita
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Patent number: 8823630Abstract: Provided are systems and methods for providing a stabilized color management system in a solid state lighting panel. Methods according to some embodiments include receiving, in the microcontroller, a color management reference value corresponding to a color characteristic of the solid state lighting panel and adjusting a control mode of the microcontroller responsive to the color management reference value.Type: GrantFiled: December 18, 2007Date of Patent: September 2, 2014Assignee: Cree, Inc.Inventors: John K. Roberts, Keith J. Vadas
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Patent number: 8814377Abstract: Disclosed herein are a backlight unit and a display apparatus using the same. The backlight unit includes at least one light source, a reflection layer to reflect light emitted from the light source, and a plurality of absorption patterns formed on a portion of the reflection layer adjacent to a light emitting surface of the light source, to partially absorb the light emitted from the light source.Type: GrantFiled: August 19, 2011Date of Patent: August 26, 2014Assignee: LG Innotek Co., Ltd.Inventors: Min Sang Kim, Duk Hyun Yun, Moon Jeong Kim, Jung In Seo, Jeong Hwan Kim, Ji Won Jang
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Patent number: 8814378Abstract: An LED package structure is disclosed, which comprises an LED chip and a frame for receiving the LED chip, and the frame comprises a bottom wall, a first sidewall and a light exiting wall. The LED chip is disposed on the bottom wall, the first sidewall is obliquely disposed in a light exiting direction of the LED chip, and light rays emitted from the LED chip are reflected by the first sidewall and then exit from the light exiting wall. An LCD device is further disclosed. According to the LCD device and the LED package structure thereof of the present disclosure, light rays emitted from the LED chip are reflected by the first sidewall and then exit from the light exiting wall. This can increase the light mixing distance for the LED chip and avoid occurrence of light emission blind areas, thus eliminating the hot spot phenomenon.Type: GrantFiled: December 14, 2011Date of Patent: August 26, 2014Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.Inventors: Guo-Fu Tang, Gang Yu
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Patent number: 8814391Abstract: A light guiding structure includes a light transmissive body and microstructures; the light transmissive body includes an upper conical groove and a lower accommodating groove, and the upper conical groove has a curved surface with a continually varied slope; the microstructures are disposed on the light transmissive body. A lighting device includes a circuit board, a light source and the aforesaid light guiding structure; the light source and the light guiding structure are disposed on the circuit board, and the light source is accommodated within the lower accommodating groove.Type: GrantFiled: September 16, 2011Date of Patent: August 26, 2014Assignee: Luxingtek, Ltd.Inventors: Zhi-Wei Koh, Chi-Jen Kao, Wen-Chiun Ing, Wei-Hsin Hou
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Publication number: 20140233218Abstract: This invention provides a Transparent LCD window frame with adjustable LED spot lights to be primarily use as an information screen when set in front of an object. The transparent LCD displays information, images or videos in front of objects or people that are properly lighted by the built in adjustable spot LED lights. The unit is self contained and operates independent or it can be controlled externally or remotely.Type: ApplicationFiled: April 24, 2014Publication date: August 21, 2014Applicant: HOLOGRAFYX CANADA INC.Inventor: ALFONSO FABIAN DE LA FUENTE SANCHEZ
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Patent number: 8807816Abstract: A luminaire (20) comprising a light guide (11) having a first refractive index (n1), the light guide (11) comprising a light-entry surface (14), a light-reflecting surface (15) for reflecting light entering at the light-entry surface (14), and a light-exit surface (16) opposite the light-reflecting surface (15), for allowing light to exit from the light guide (11), the light guide (11) being tapered toward the opposite end relative the light-entry surface (14).Type: GrantFiled: April 19, 2010Date of Patent: August 19, 2014Assignee: Koninklijke Philips N.V.Inventors: Lieven Raf Roger Desmet, Michel Cornelis Josephus Marie Vissenberg, Willem Lubertus Ijzerman
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Patent number: 8807776Abstract: A backlight unit for a dynamic image and a display employing the same are provided. The backlight unit is used for a light source of a display and includes light-emitting devices located separately on a substrate, an image analyzer which analyzes an image signal and extracts position information on a region requiring the relative increase or decrease of brightness, and a control unit which independently drives and controls the light-emitting devices located in a region corresponding to the position information inputted from the image board. Accordingly, the display employing the backlight unit can provide a more dynamic and realistic image.Type: GrantFiled: April 27, 2009Date of Patent: August 19, 2014Assignee: Samsung Electronics Co., Ltd.Inventors: Il-yong Jung, Tae-hee Cho
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Patent number: 8810748Abstract: A light emitting diode (“LED”) backlight assembly. The LED backlight assembly has a bottom container which has a bottom plate and a side edge surrounding the bottom plate, a plurality of light emitting diode printed circuit boards (“LED-PCBs”) on the bottom plate, and a connector which is closely located to edge located LEDs. The connector of the LED-PCB is closely located to an LED driving board, which is disposed at a lateral space of a lateral part of the bottom container to limit a vertical thickness of the backlight light assembly.Type: GrantFiled: September 26, 2013Date of Patent: August 19, 2014Assignee: Samsung Display Co., Ltd.Inventors: Jin-Hee Park, Yong-Woo Lee, Won-Ju Kim, Yong-Il Kim