Reflector Patents (Class 362/609)
  • Patent number: 11873982
    Abstract: The invention provides a vapor chamber element (1000), wherein the vapor chamber element (1000) comprises a first plate (110) and a second plate (120) with a chamber (100) in between, wherein the chamber (100) has a first height (H1), wherein the vapor chamber element (1000) further comprises bridging elements (150) bridging at least part of the first height (H1), wherein the vapor chamber element (1000) comprises a plurality of sections (130) configured along a first axis (A), wherein the plurality of sections (130) comprises (i) a bending section (131) having a first volume fraction V1 of bridging elements (150), and (ii) a basic section (133) having a second volume fraction V2 of bridging elements (150), wherein 2?V1/V2.
    Type: Grant
    Filed: April 30, 2021
    Date of Patent: January 16, 2024
    Assignee: SIGNIFY HOLDING B.V.
    Inventors: Genevieve Therese Martin, Jiang Hong Yu, Derk Tiekink
  • Patent number: 11808985
    Abstract: A waveguide combiner includes an in-coupling area, a waveguide body and an out-coupling area. The in-coupling area is configured to introduce a light beam. The waveguide body is configured to guide the light beam introduced by the in-coupling area. The out-coupling area is configured to output the light beam guided by the waveguide body. The waveguide body includes at least one of a beam-expanding part configured to expand the light beam to a predetermined direction by reflecting the light beam and a beam-folding part configured to change the light beam to a different direction by reflecting the light beam.
    Type: Grant
    Filed: October 12, 2021
    Date of Patent: November 7, 2023
    Assignee: HIMAX TECHNOLOGIES LIMITED
    Inventor: Jiun-Yi Lien
  • Patent number: 11789309
    Abstract: Some embodiments of the present disclosure disclose an LED backlight module and a display device, a plurality of light-emitting units are distributed on a substrate of the LED backlight module, and the surface of the substrate is provided with a plurality of solder mask window areas for the plurality of light-emitting units to abut against, and a conductive circuit connecting two adjacent light-emitting units includes a main circuit and an auxiliary circuit; a remaining portion of the substrate except for the solder mask window area is coated with an insulating material, an alignment error in the coating process causes the reserved solder mask window area to be covered and an actual solder mask window area to shift, since the auxiliary circuit passes through the solder mask window area and a routing-wiring direction is intersected the connecting-wiring direction of the two electrodes of the light-emitting units.
    Type: Grant
    Filed: June 29, 2020
    Date of Patent: October 17, 2023
    Assignee: FOSHAN NATIONSTAR OPTOELECTRONICS CO., LTD.
    Inventors: Qiang Zhao, Kuai Qin, Heng Guo, Kailiang Fan
  • Patent number: 11715433
    Abstract: A light-emitting assembly includes a substrate and a plurality of light-emitting elements. The substrate includes a component arrangement region and a planar region in a top view, and includes a base material layer, a filled layer and a protection layer in a sectional view. A thickness of the filled layer is greater than a thickness of the protection layer. The thickness of the protection layer is greater than 0 ?m and less than 30 ?m. The plurality of light-emitting elements are located on the component arrangement region. This disclosure can improve the non-uniform brightness issue (hotspots) or enhance the optical performance.
    Type: Grant
    Filed: February 9, 2022
    Date of Patent: August 1, 2023
    Assignee: INNOLUX CORPORATION
    Inventors: Chung-Chun Kuo, Chun-Fang Chen, Hui-Wen Su, Wei-Yuan Chen, Chung-Yu Cheng
  • Patent number: 11649970
    Abstract: An over-the-range appliance mountable over a cooktop appliance is provided. The over-the-range appliance includes a cabinet comprising a bottom panel defining a central aperture, a lighting box mounted within the central aperture. The lighting box defines a lighting recess and one or more light sources are mounted to the lighting box and are positioned within the lighting recess. A diffuser plate is positioned over the one or more light sources and encloses the lighting recess.
    Type: Grant
    Filed: November 20, 2020
    Date of Patent: May 16, 2023
    Assignee: Haier US Appliance Solutions, Inc.
    Inventors: Michael Blackwood, Jeff Donald Drake
  • Patent number: 11649938
    Abstract: An LED downlighting apparatus includes a housing with a sidewall having a front facing edge and a back facing edge positioned adjacent to a ceiling when the LED downlighting apparatus is installed in an opening of the ceiling. A depth of the sidewall is less than one inch and a thickness of at least a portion of the sidewall is less than three millimeters. An LED board and a lens are coupled to the housing. The lens is disposed with respect to the LED board such that the lens is illuminated from a back side. One or more mechanical couplers snap fit the apparatus to a junction box installed and positioned above the ceiling such that when the apparatus is snap fit to the junction box through the opening of the ceiling, the housing appears to be surface mounted to the ceiling.
    Type: Grant
    Filed: September 16, 2021
    Date of Patent: May 16, 2023
    Assignee: DMF, Inc.
    Inventors: Michael D. Danesh, Vincent Williams, Mark Jongewaard
  • Patent number: 11579485
    Abstract: A white light emitting device, including a circuit board; a plurality of light sources mounted on the circuit board, each light source of the plurality of light sources configured to emit monochromatic light; a light converter spaced apart from the circuit board, the light converter configured to convert the monochromatic light emitted from the light sources to white light; and a compensator provided between the circuit board and the light converter, the compensator configured to convert the emitted monochromatic light to white light.
    Type: Grant
    Filed: July 1, 2021
    Date of Patent: February 14, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jong Pil Jeon, Jong-hoi Kim, Kye Hoon Lee, Dae-hee Lee, Byoung-jin Cho, Suk-ju Choi
  • Patent number: 11567362
    Abstract: A light guide assembly includes a light guide plate and a light guide strip around the periphery of the light guide plate, where a plurality of light-transmitting holes are formed on one side of the light guide strip facing to the light guide plate, and at least one end of the light guide strip is an light incident side. The light is incident to the inside of the light guide strip from the light incident side, and then is incident into the light guide plate from the light-transmitting holes on the side of the light guide strip, and thus becomes a surface light source.
    Type: Grant
    Filed: August 2, 2019
    Date of Patent: January 31, 2023
    Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Jingjun Du, Lingyu Sun, Xiuyun Chen, Fei Liang, Liyu Fang, Tingxiu Hou, Peng Zhong
  • Patent number: 11537247
    Abstract: Provided herein is a display device including a base layer having a non-sensing area and a sensing area configured to surround the non-sensing area, a touch sensor disposed on the sensing area of the base layer, an optical structure disposed on the base layer, and a polarization layer disposed on the touch sensor so as to overlap the sensing area. The touch sensor and the optical structure include a first through hole located in the non-sensing area, and the non-sensing area includes a first area corresponding to the first through hole and a second area configured to surround the first area. The optical structure is disposed in the second area, and includes an optical pattern including a plurality of openings.
    Type: Grant
    Filed: October 5, 2020
    Date of Patent: December 27, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sung Jin Yang, Hyun Sik Park, Tae Ik Kim
  • Patent number: 11536894
    Abstract: According to an aspect of the present disclosure, a luminaire comprises a housing and at least one waveguide comprising first and second opposite waveguide ends, a coupling portion disposed at the first waveguide end, and a light emitting portion disposed between the first and second waveguide ends. The luminaire is further arranged such that the first waveguide end is disposed adjacent a first luminaire end and the second waveguide end is disposed at a second luminaire end opposite the first luminaire end. Still further, the luminaire comprises at least one LED element disposed within the housing adjacent the coupling portion of the at least one waveguide such that the at least one waveguide provides a first illumination pattern and the at least one waveguide is interchangeable with another waveguide that provides a second illumination pattern.
    Type: Grant
    Filed: February 6, 2018
    Date of Patent: December 27, 2022
    Assignee: IDEAL Industries Lighting LLC
    Inventors: Ethan Creasman, Randy Bernard, Dana Deskiewicz, Nathan Snell
  • Patent number: 11493683
    Abstract: According to one embodiment, an illuminating device includes a lightguide plate including a curved emitting surface, and an incidence surface including a side edge curved along the emitting surface, a printed circuit board facing the incidence surface, and light sources mounted on the printed circuit board. Each light source includes a light-emitting center, a pair of connection terminals, and a central axis extending through the connection terminals and the light-emitting center. The light sources are arranged along a curved mounting line extending along the curved side edge of the incidence surface on the printed circuit board. The light-emitting centers are located on the mounting line, and the central axes are parallel to each other.
    Type: Grant
    Filed: February 25, 2022
    Date of Patent: November 8, 2022
    Assignee: Japan Display Inc.
    Inventors: Masayuki Mifune, Makoto Miyao
  • Patent number: 11487155
    Abstract: A backlight module includes an optical plate, a light source, and at least one optical film. The optical plate includes a light-emitting surface, a bottom surface and a side surface. The light source faces to the bottom surface or the side surface. The optical film is disposed above the light-emitting surface and includes a main body and at least one refractive part disposed on an end surface of the main body. The refractive part includes a plurality of microstructures and a substrate. The substrate is adhered to the end surface, and the microstructures are distributed in the substrate.
    Type: Grant
    Filed: May 24, 2022
    Date of Patent: November 1, 2022
    Assignee: Radiant Opto-Electronics Corporation
    Inventors: Yi-Lin Tsai, Shin-Min Huang, Chen-Ming Li
  • Patent number: 11471547
    Abstract: A light fixture includes a visible light module and a germicidal light module. The visible light module may include one or more visible light engines designed for emitting visible light for general illumination. The visible light module may define a top side, a bottom side opposite the top side, and an outer perimeter around the top side and the bottom side. The visible light module may define an aperture extending through the visible light module from the top side to the bottom side. The visible light module may be designed to emit the visible light out of and across the bottom side from the outer perimeter to an inner perimeter defined by the aperture. The germicidal light module may be coupled to the visible light module. The germicidal light module includes a germicidal light engine designed to emit germicidal light through the aperture effective in deactivating pathogens.
    Type: Grant
    Filed: June 3, 2021
    Date of Patent: October 18, 2022
    Assignee: ABL IP Holding LLC
    Inventors: John S. Schubert, Konrad Patryk Pietka, Juan A. Rodriguez, Christopher Charles Trechter
  • Patent number: 11402677
    Abstract: An optical film includes a light-transmissive substrate and a first annular lens group. The light-transmissive substrate has a first surface and a second surface opposite to each other. The first annular lens group is disposed on the second surface, and the first annular lens group is configured to allow light to pass through. The reflectivity of the first annular lens group decreases along a direction away from a central axis of the first annular lens group, and an extending direction of the central axis is the same as a thickness direction of the light-transmissive substrate.
    Type: Grant
    Filed: June 30, 2020
    Date of Patent: August 2, 2022
    Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Ying Chen, Shanshan Liu, Lili Jia, Bochang Wang, Donglei Li, Hui Liu, Honghao Yu
  • Patent number: 11347104
    Abstract: Embodiments of the present disclosure provide a backlight module, a liquid crystal display apparatus, and a method of manufacturing the backlight module. The backlight module includes: a support plate including a first surface; a light source fixed to the first surface of the support plate, having a light exit face, and configured to emit a light from the light exit face; an adhesion assembly disposed on the first surface of the support plate, and including at least one adhesion part extending from the light exit face of the light source in a direction away from the light source; and a light guide plate including: a bottom surface adhered to the first surface of the support plate through the at least one adhesion part of the adhesion assembly; a top surface located opposite to the bottom surface and serving as a light exit face of the light guide plate; and a side surface surrounding the bottom surface and the top surface. A portion of the side surface serves as a light entry face of the light guide plate.
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: May 31, 2022
    Assignees: CHONGQING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Chaojie Zhang, Liang Gao, Sijun Lei, Yansheng Sun, Dengqian Li
  • Patent number: 11280558
    Abstract: A composite sheet, including: a buffer sheet; and a heat dissipation sheet on one surface of the buffer sheet. One surface of the heat dissipation sheet facing the one surface of the buffer sheet may have a smaller area than the one surface of the buffer sheet. A display device includes a display panel and a composite sheet on one surface of the display panel.
    Type: Grant
    Filed: April 8, 2020
    Date of Patent: March 22, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Won Il Lee, Min Seop Kim
  • Patent number: 11269460
    Abstract: A touch sensing apparatus is disclosed comprising a panel that defines a touch surface, a plurality of light emitters and detectors arranged along a perimeter of the panel. The light emitters are arranged to emit a respective beam of emitted light that travels above the touch surface, wherein the light detectors are arranged to receive detection light from the emitted light. The plurality of light emitters and detectors are arranged above the touch surface and are connected to a substrate extending in a direction parallel with a normal axis of a plane in which the panel extends. A method of assembling a touch sensing apparatus is also disclosed.
    Type: Grant
    Filed: November 23, 2020
    Date of Patent: March 8, 2022
    Assignee: FlatFrog Laboratories AB
    Inventors: Daniel Skagmo, Robert Ehn, Hakan Bergstrom
  • Patent number: 11182006
    Abstract: An illuminated touch panel includes a backlight assembly and a cover plate. The backlight assembly includes a light guide plate, and an outer stop. The light guide plate includes a plurality of bar portions and a connecting portion. The plurality of bar portions are separated from each other and arranged side by side. Each of the bar portions includes a pattern dot region, a connecting end and a light entrance end. There is a narrow slot between any two adjacent bar portions. The long axis direction of each of the extending dot regions of the connecting portion is substantially parallel to the length direction of each of the narrow slots. The plurality of light blocking bars of the outer stop are arranged side by side and fitted with the plurality of narrow slots. The cover plate includes a plurality of window regions corresponding to the plurality of pattern dot regions.
    Type: Grant
    Filed: November 13, 2020
    Date of Patent: November 23, 2021
    Assignee: CHICONY POWER TECHNOLOGY CO., LTD.
    Inventors: Hsuan-Wei Ho, Ting-Wei Chang
  • Patent number: 10996501
    Abstract: Embodiments of the present disclosure provide a display panel and a display device. In the display panel, by disposing a light source on a lateral side of a first base substrate, using the first base substrate as a light guiding plate, and respectively disposing a metal wire grid and a second metal wire grid on a lateral side of the first base substrate and under the first base substrate, light is emitted upwards. Moreover, a diffuse reflection layer and an optical structure layer are disposed on the first substrate, so that there is no need to dispose a backlight module. Due to no need for a reflective film and a backlight structure, the display panel achieves transparent display.
    Type: Grant
    Filed: July 20, 2020
    Date of Patent: May 4, 2021
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Bingkun Yin
  • Patent number: 10996391
    Abstract: A display device is disclosed. The display device comprises: a display panel; a light guide plate arranged behind the display panel so as to guide light to the display panel, and having at least one end curved away from the display panel; at least one light source for emitting light toward a surface, on which light is incident, of at least one end of the light guide plate; and at least one reflection part arranged adjacently to at least one light source so as to reflect the light toward the display panel.
    Type: Grant
    Filed: November 22, 2018
    Date of Patent: May 4, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Kihyung Kang
  • Patent number: 10921509
    Abstract: According to one embodiment, an illumination device includes a light source disposed along a first direction, a light guide plate including a first end and a second end, the second end being positioned to be opposite to the first end in a second direction which crosses the first direction, a frame disposed along the second end and including an inner surface and an upper surface, and an adhesion member disposed on at least the upper surface of the frame, wherein the light source is disposed at the first end along the first direction, at least the inner surface of the frame is a light absorbing surface, and the adhesion member is light transmissive.
    Type: Grant
    Filed: February 6, 2020
    Date of Patent: February 16, 2021
    Assignee: Japan Display Inc.
    Inventors: Kazunari Nishita, Ken Sugiyama, Tetsuro Ochi, Toshiyuki Tsubota
  • Patent number: 10921505
    Abstract: A lighting arrangement and a method of coupling light into a light guide are described. A light source is embedded within a light guide. The light guide includes first and second outer surfaces arranged on opposite sides. A forward direction extends from the light source parallel to the first outer surface. A collimator is embedded within the light guide. The collimator comprises a first reflector surface facing towards the second outer surface and a second reflector surface facing towards the first outer surface. The light source is arranged to emit light between the first and second reflector surfaces. The first reflector surface is arranged at least substantially parallel to the forward direction. At least a portion of the second reflector surface is arranged under an angle to the forward direction.
    Type: Grant
    Filed: April 27, 2017
    Date of Patent: February 16, 2021
    Assignee: Lumileds LLC
    Inventors: Varun Dev Kakkar, Hugo Johan Cornelissen, Giovanni Cennini
  • Patent number: 10884172
    Abstract: A light-emitting device includes a light-emitting element having a light-emitting surface, and a plurality of protruding portions being separated from each other and disposed on the light-emitting surface. The protruding portions are transparent. Each of the protruding portions includes a light guide portion and a light distribution control portion. The light guide portion has a columnar configuration and is provided at a light-emitting surface side of the protruding portion. The light distribution control portion is provided on the light guide portion. The light distribution control portion is asymmetric with respect to a central axis of the light guide portion and has a tilted surface that is tilted with respect to the central axis.
    Type: Grant
    Filed: September 10, 2019
    Date of Patent: January 5, 2021
    Assignee: NICHIA CORPORATION
    Inventors: Takuya Nagamoto, Koichi Amari, Yuji Sakakihara
  • Patent number: 10852586
    Abstract: A direct type backlight module includes a back plate, a light emitting element, and a frame body. The light emitting element is disposed on the back plate and configured to provide an illumination beam. The frame body is disposed on the back plate to surround the light emitting element. The frame body includes a light transmitting portion and a reflecting portion. The light transmitting portion is located at an edge of a light emitting side of the direct type backlight module. The reflecting portion is located between the light transmitting portion and the back plate. The light transmitting portion has a carrier portion, wherein the illumination beam is configured to be transmitted into the light transmitting portion, transmitted to the carrier portion of the light transmitting portion by reflection of the reflecting portion, and then emitted. A display device including the direct type backlight module is also provided.
    Type: Grant
    Filed: March 23, 2020
    Date of Patent: December 1, 2020
    Assignees: CORETRONIC (SUZHOU) CO., LTD., Coretronic Corporation
    Inventors: Bin Li, Liang-Kuo Tsao, Hua-Te Feng, Wen-Pin Yang
  • Patent number: 10802326
    Abstract: A terminal device includes a middle frame, a light-absorbing and heat-dissipating film disposed in the middle frame, and a display module. The middle frame includes a bottom and a side part connected to the bottom. The side part encircles the bottom to form a concavity on the bottom. The light-absorbing and heat-dissipating film covers the inner surfaces of the bottom and the side part. The display module is disposed in the concavity.
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: October 13, 2020
    Assignee: Wuhan China Star Optoelectronics Technology Co., Ltd.
    Inventor: Wei Zhang
  • Patent number: 10795072
    Abstract: An optical chamber, an optical system, and a display device are provided. The optical chamber includes: a plurality of sidewalls, including a first sidewall having at least one opening, configured to reflect light in the optical chamber; and a light path adjusting element connected with the first sidewall, wherein the orthographic projection of the light path adjusting element onto the plane where the first sidewall lies at least partially lies in the area where the opening is located, and the light path adjusting element is configured to uniformly emit the light reflected by the plurality of sidewalls to the outside.
    Type: Grant
    Filed: September 4, 2018
    Date of Patent: October 6, 2020
    Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD, BOE TECHNOLOGY GROUP CO., LTD
    Inventors: Fei Liang, Lingyu Sun, Xiuyun Chen, Jingjun Du
  • Patent number: 10788616
    Abstract: Embodiments of the present disclosure provide backlight module, display device and driving method. The backlight module comprises: light guide plate for emitting light from light-exiting surface of the light guide plate along light-exiting direction; monochromatic light sources of different colors located on a side of the light guide plate on which incident surface is located; optical path adjusting portion located on the incident surface of the light guide plate, for making light emitted by the monochromatic light sources be incident to the light guide plate from the incident surface of the light guide plate at different incident angles, wherein the light incident to the light guide plate is propagated with a total reflection; and light extracting gratings arranged in an array, located on the light-exiting surface of the light guide plate, for extracting the light with same preset angle.
    Type: Grant
    Filed: December 5, 2018
    Date of Patent: September 29, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Jifeng Tan
  • Patent number: 10775671
    Abstract: A display device includes a light emitter comprising a set of light emitter portions, wherein at least one light emitter portion of the set is configured to emit light with an excitation wavelength, and a color conversion layer including a set of conversion layer portions. At least one conversion layer portion of the set comprises a film comprising a solid polymer composition that includes luminescent crystals of perovskite structure, which are selected from compounds of formula (I): M1aM2bXc (I), wherein M1 represents Cs, M2 represents Pb, and X independently represents anions selected from the group consisting of Cl, Br, I, cyanide, and thiocyanate. The luminescent crystals are of size between 3 nm and 3000 nm, and emit light of a wavelength in response to excitation by the light emitted by at least one corresponding light emitter portion of the set, wherein the excitation wavelength is shorter than the wavelength.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: September 15, 2020
    Assignee: AVANTAMA AG
    Inventors: Norman L├╝chinger, Ines Weber, Stefan Loher, Marek Oszajca, Benjamin Hartmeier
  • Patent number: 10732338
    Abstract: The display assembly includes: a light source configured to emit light; a light guide plate disposed to receive light emitted from the light source on a lateral side; and a color transformer disposed proximate to an edge of the light guide plate, and configured to change a color of light incident to the color transformer.
    Type: Grant
    Filed: April 19, 2016
    Date of Patent: August 4, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kye Hoon Lee, Dae Kuen Yang, Nae-won Jang
  • Patent number: 10704781
    Abstract: A waterproof light emitting module is provided. The waterproof light emitting module comprises a circuit board, a light emitting diode, a light guide plate, and a waterproof layer. The light emitting diode is over the circuit board, and having a light emitting surface, a first non-light emitting surface and a second non-light emitting surface. The light guide plate is adjacent to the light emitting surface of the light emitting diode. The waterproof layer covers the first non-light emitting surface and the second non-light emitting surface of the light emitting diode. The waterproof layer includes an adhesive, a substrate, a recessed portion of the light guide plate, a portion of the circuit board or a combination thereof. A display device including the waterproof light emitting module is also provided herein.
    Type: Grant
    Filed: April 12, 2018
    Date of Patent: July 7, 2020
    Assignee: E Ink Holdings Inc.
    Inventors: Tsai-Wei Shei, Mei-Chen Chang, Yu-Nan Pao, Hsin-Tao Huang, Ming-Chuan Hung
  • Patent number: 10694159
    Abstract: The backlight module includes a bracket, a light emission module, a reflective film, and first glue structures. The bracket has a first plate and a second plate opposite to each other, and a third plate connecting the first plate to the second plate. The light emission module is disposed between the first plate and the second plate and includes light emission elements. The reflective film is disposed between the light emission elements and the first plate. The reflective film is mounted on the first plate of the bracket through the first adhesive structures. The first adhesive structures vertically project on the first plate at a plurality of first areas respectively, the light emission elements vertically project on the first plate at a plurality of second areas respectively, and the first areas do not overlap with the second areas.
    Type: Grant
    Filed: May 31, 2019
    Date of Patent: June 23, 2020
    Assignee: AU OPTRONICS CORPORATION
    Inventors: Keng-Yi Lee, Yu-Chin Wu
  • Patent number: 10670257
    Abstract: A waterproof light emitting module includes a circuit board, a light emitting diode, a light guide plate, first, second, and third waterproof layers. The light emitting diode is over the circuit board and has a light emitting surface, and first and second non-light emitting surfaces. The light emitting surface is opposite to the first non-light emitting surface. The second non-light emitting surface is between the light emitting surface and the first non-light emitting surface. A center of the light guide plate is substantially aligned with a center of the light emitting diode along a direction perpendicular to the light emitting surface. The light emitting diode is between the first waterproof layer and the light guide plate. The second waterproof layer covers the second non-light emitting surface. The third waterproof layer is between the second waterproof layer and the light guide plate.
    Type: Grant
    Filed: September 17, 2019
    Date of Patent: June 2, 2020
    Assignee: E Ink Holdings Inc.
    Inventors: Tsai-Wei Shei, Chih-Ching Yen, Hsin-Hao Jen, Chin-Chi Yu, Chih-Chun Chen
  • Patent number: 10656321
    Abstract: A light guiding structure of a backlight device having an insulation substrate, a micro LED, a reflecting layer, a light guiding layer and reflecting film. An illuminating surface is formed on the insulation substrate. The reflecting layer is stacked on the insulation substrate and stacked with the light guiding layer. The micro LED is arranged on the illuminating surface and illuminating toward a direction perpendicular to the illuminating surface. The reflecting film is stacked on the illuminating surface and covering on the micro LED, an edge of the light guiding layer is stacked between an edge of the reflecting film and the reflecting layer, a reflecting slope is defined on the reflecting film and extended from the micro LED to the edge of the light guiding layer. Light projected from the micro LED is reflected into the light guiding layer by the reflecting slope of the reflecting film.
    Type: Grant
    Filed: June 22, 2019
    Date of Patent: May 19, 2020
    Assignee: SUZHOU LUUMII LTD.
    Inventors: Yu-Kai Lin, Chen-Fang Kang
  • Patent number: 10656465
    Abstract: A display device includes a light source that includes a blue light-emitting diode (LED) configured to generate a blue output light; a nanocrystal material that is disposed between the light source and a liquid crystal module, and a light guide assembly. The nanocrystal material receives the blue output light, converts a first portion of the blue output light to a green light emission, converts a second portion of the blue output light to a red light emission, and transmits a remainder portion of the blue output light. The light guide assembly includes a planar light guide optically coupled to a light-receiving surface of the liquid crystal module and a curved light guide optically coupled to the planar light guide and configured to receive light from the light source and direct the light toward the planar light guide.
    Type: Grant
    Filed: December 8, 2017
    Date of Patent: May 19, 2020
    Assignee: HARMAN INTERNATIONAL INDUSTRIES, INCORPORATED
    Inventors: Rashmi Rao, Elijah Auger
  • Patent number: 10634948
    Abstract: The present invention provides a lighting device that is excellent in luminance uniformity and light use efficiency and allows for a narrower frame, and a display device including the lighting device. Provided is a lighting device including: a light guide plate; a light source disposed posterior to the light guide plate; a reflection member including a reflective surface facing a light emitting surface of the light source and a light incident surface of the light guide plate, disposed lateral to the light guide plate and the light source, the lighting device further including a reflective polarizing layer on the light incident surface of the light guide plate.
    Type: Grant
    Filed: March 6, 2017
    Date of Patent: April 28, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Kenji Takase
  • Patent number: 10620366
    Abstract: According to one embodiment, an illumination device includes a light source disposed along a first direction, a light guide plate including a first end and a second end, the second end being positioned to be opposite to the first end in a second direction which crosses the first direction, a frame disposed along the second end and including an inner surface and an upper surface, and an adhesion member disposed on at least the upper surface of the frame, wherein the light source is disposed at the first end along the first direction, at least the inner surface of the frame is a light absorbing surface, and the adhesion member is light transmissive.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: April 14, 2020
    Assignee: Japan Display Inc.
    Inventors: Kazunari Nishita, Ken Sugiyama, Tetsuro Ochi, Toshiyuki Tsubota
  • Patent number: 10591771
    Abstract: Disclosed are a backlight module and a display apparatus. The backlight module includes an infrared light source, an optical fiber and a conversion component. The infrared light source is connected with an input end of the optical fiber and configured to provide infrared light to the input end of the optical fiber. An output end of the optical fiber is connected with the conversion component and configured to transmit the infrared light to the conversion component. The conversion component includes a tube body, and a plurality of light emitting elements are arranged along an extending direction of the tube body successively in the tube body. The light emitting elements are configured to emit visible light under the irradiation of the infrared light.
    Type: Grant
    Filed: March 21, 2018
    Date of Patent: March 17, 2020
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Tongmin Liu, Jun Xu, Qing Zhang, Fusheng Huang, Shouzheng Wu, Heng Zhang
  • Patent number: 10495810
    Abstract: A planar light source device includes at least a light guide plate and a lamp unit disposed replaceably at a side surface of the plate. The lamp unit includes: a lamp holder having a shape where a surface facing the side surface of the light guide plate is opened; an LED mounted on a flexible cable, the cable fixed on an inner surface of the lamp holder; and a shielding sheet fixed on an outer surface of the lamp holder. An upper portion of the lamp holder located close to a light emitting surface of the light guide plate does not overlap its light emitting surface when viewed from a normal direction of the light emitting surface. One end of the shielding sheet is fixed to the upper portion of the lamp holder, the other end being closely attached to the light emitting surface of the light guide plate.
    Type: Grant
    Filed: September 18, 2013
    Date of Patent: December 3, 2019
    Assignee: TIANMA MICROELECTRONICS CO., LTD.
    Inventor: Hideki Itaya
  • Patent number: 10423030
    Abstract: Provided is a partial drive-type light source device capable of suppressing coloring of a section intended to be a dark section when a plurality of light-emitting elements is driven in a partial manner. The partial drive-type light source device includes an excitation light source, a phosphor sheet that is disposed at a position separated from the excitation light source and contains a phosphor that releases emitted light in a wavelength region differing from incident light, and a wavelength-selective reflection film that is disposed between the excitation light source and the phosphor sheet and that transmits at least part of light in the wavelength region of the incident light from the excitation light source and reflects at least part of light in the wavelength region of the emitted light from the phosphor sheet.
    Type: Grant
    Filed: August 9, 2016
    Date of Patent: September 24, 2019
    Assignee: Dexerials Corporation
    Inventors: Koichi Kishimoto, Yasushi Ito, Tomomitsu Hori, Noritaka Sato
  • Patent number: 10416499
    Abstract: A backlight module, which includes: a backplane; a reflector sheet, a light guide plate, and an optical diaphragm group, which are sequentially stacked on the backplane; and multiple connectors disposed at a border of the backlight module, wherein the connector having a space block and an upper connection portion connected to an upper surface of the spacer block, the spacer block is disposed between the backplane and the reflector sheet, the upper connection portion is relatively fixed simultaneously to the reflector sheet, the light guide plate, and the optical diaphragm group. A display device is also disclosed.
    Type: Grant
    Filed: September 15, 2015
    Date of Patent: September 17, 2019
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventors: Gang Yu, Dehua Li
  • Patent number: 10408994
    Abstract: According to one embodiment, an illumination device includes a light source disposed along a first direction, a light guide plate including a first end and a second end, the second end being positioned to be opposite to the first end in a second direction which crosses the first direction, a frame disposed along the second end and including an inner surface and an upper surface, and an adhesion member disposed on at least the upper surface of the frame, wherein the light source is disposed at the first end along the first direction, at least the inner surface of the frame is a light absorbing surface, and the adhesion member is light transmissive.
    Type: Grant
    Filed: April 24, 2017
    Date of Patent: September 10, 2019
    Assignee: Japan Display Inc.
    Inventors: Kazunari Nishita, Ken Sugiyama, Tetsuro Ochi, Toshiyuki Tsubota
  • Patent number: 10408992
    Abstract: An imaging directional backlight apparatus includes a waveguide and a light source array, providing large area directed illumination from localized light sources. The waveguide may include a stepped structure, and the steps may further include extraction features optically hidden to guided light, propagating in a forward direction. Returning light propagating in a backward direction may be refracted, diffracted, or reflected by the features to provide discrete illumination beams exiting from the top surface of the waveguide. Viewing windows are formed through imaging individual light sources and define the relative positions of system elements and ray paths. The imaging directional backlight apparatus further includes multiple waveguides with light extraction features arranged to provide uniform output luminance at the seam between the waveguides.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: September 10, 2019
    Assignee: RealD Spark, LLC
    Inventors: Graham J. Woodgate, Michael G. Robinson, Jonathan Harrold, Robert Ramsey
  • Patent number: 10386559
    Abstract: A light emitting device (102, 202) comprising a light source (104) having a light exit surface, a wavelength converter (106) configured to convert light from a first wavelength to a second wavelength, said wavelength converter having a light exit surface (110) and a light entrance surface, a heat sink (100) and an optical coupling element (112), arranged in thermal connection with said heat sink (100) and said wavelength converter (106), wherein said optical coupling element (112) is selected to have a refractive index lower than a refractive index of said wavelength converter (106). The optical coupling element (112) will allow for an efficient heat transfer from the wavelength converter (106) to the heat sink (100) while avoiding loss of light from unwanted surfaces.
    Type: Grant
    Filed: March 20, 2014
    Date of Patent: August 20, 2019
    Assignee: SIGNIFY HOLDING B.V.
    Inventors: Rifat Ata Mustafa Hikmet, Dominique Maria Bruls, Ties Van Bommel, Dirk Kornelis Gerhardus De Boer
  • Patent number: 10379286
    Abstract: Provided are a light guide plate which has a notch part formed at one edge part thereof and emits light made incident on the other edge part side from a light source through one surface thereof, such that it is possible to prevent the incident light from being irregularly reflected on the side face forming the notch part, and prevent an occurrence of stray light around the notch part, a light source device and a display apparatus. A side face forming the notch part has, on a light source side, an inclined face which is obliquely formed with respect to the incident light or a parallel face which is formed parallel to the incident light.
    Type: Grant
    Filed: February 18, 2014
    Date of Patent: August 13, 2019
    Assignee: Sakai Display Products Corporation
    Inventor: Takashi Uchida
  • Patent number: 10330843
    Abstract: An imaging directional backlight apparatus includes a waveguide and a light source array for providing large area directed illumination from localized light sources. The waveguide may include a stepped structure. The steps may include extraction features optically hidden to guided light, propagating in a first forward direction. Returning light propagating in a second backward direction may be refracted, diffracted, or reflected by the features, providing discrete illumination beams exiting from the top surface of the waveguide. Viewing windows are formed through imaging individual light sources and define the relative positions of system elements and ray paths. The uncorrected system creates non-illuminated void portions when viewed off-axis preventing uniform wide angle 2D illumination modes. The input end may have microstructures arranged to remove this non uniformity at wide angles.
    Type: Grant
    Filed: October 11, 2016
    Date of Patent: June 25, 2019
    Assignee: RealD Spark, LLC
    Inventors: Michael G. Robinson, Graham J. Woodgate
  • Patent number: 10302856
    Abstract: The invention discloses a light-emitting unit, comprising a backplane and a light source provided on the backplane. The light source includes a plurality of sub light sources. The light-emitting unit further comprises light reflecting structures provided between the sub light sources. The light reflecting structures are configured to reflect the light radiating thereon from the sub light sources into the light-emitting direction of the light-emitting unit. Accordingly, the invention discloses a backlight module including the light-emitting unit and a display device including the backlight module. The backlight module in the invention is not only capable of improving a Hotspot phenomenon, but also capable of preventing the light source in the light-emitting unit from directly contacting with a light guide plate.
    Type: Grant
    Filed: October 31, 2013
    Date of Patent: May 28, 2019
    Assignees: BOE Technology Group Co., Ltd., Beijing BOE Display Technology Co., Ltd.
    Inventors: Wenjia Sun, Xiuyun Chen, Daekeun Yoon
  • Patent number: 10281766
    Abstract: A backlight device 12 includes at least: a plurality of LEDs 17 arranged in an annular and curved shape; a light guide plate 14 surrounded by the plurality of LEDs 17 having am outer shape along the arrangement of the plurality of LEDs 17, and guiding light from the plurality of LEDs 17; and an LED board (light source board) 18 on which the plurality of LEDs 17 are mounted and wiring portions 18c for feeding power to the plurality of LEDs 17 are formed. The LED board 18 extends along the arrangement of the plurality of LEDs 17, and has a terminated annular shape or an endless annular shape, and includes a no-wiring formed region NWA in a part with respect to the circumferential direction thereof, where the wiring portions 18c are not formed.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: May 7, 2019
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Shinya Kadowaki, Ryuzo Yuki, Mitsuhiro Murata, Takeshi Ishida, Takeshi Masuda, Hisashi Watanabe
  • Patent number: 10274663
    Abstract: A light guide plate, a backlight module and a display device are provided. The light guide plate includes a main body, plural first stripe structures and plural second stripe structures. The main body has at least one light-incident surface and a main surface connected to the at least one light-incident surface. The first stripe structures are arranged on plural first regions of the main surface, in which each of the first stripe structures has a first tapered portion. The second stripe structures are arranged on a plurality of second regions of the main surface, in which each of the second stripe structures has a second tapered portion. The first areas and the second areas of the main surface are alternately disposed, and an inherent type of the second stripe structures is different from an inherent type of the first stripe structures.
    Type: Grant
    Filed: March 1, 2017
    Date of Patent: April 30, 2019
    Assignees: Radiant Opto-ELectronics (Suzhou) CO., Ltd., Radiant Opto-Electronics Corporation
    Inventors: Chia-Yin Chang, Chin-Ting Weng, Shin-Bo Lin
  • Patent number: 10267972
    Abstract: A shaped illumination panel having a broad-area sheet-form configuration and including a flexible sheet of an optically transmissive material and one or more light sources optically coupled to an edge of the flexible sheet. The flexible sheet may include forward-deflecting or forward-scattering elements configured to extract light from one location of the flexible sheet and direct the extracted light to a second location of the flexible sheet where the extracted light can be transversely propagated through and reemitted from the flexible sheet.
    Type: Grant
    Filed: October 25, 2017
    Date of Patent: April 23, 2019
    Assignee: SVV TECHNOLOGY INNOVATIONS, INC.
    Inventor: Sergiy Vasylyev
  • Patent number: 10267982
    Abstract: The present disclosure relates to a light bar adhesive tape for a backlight source, including: a transparent bonding material layer configured to be bonded to a surface of a light bar flexible circuit board; a black and white flexible coating layer having a black surface on one side and a white surface on the other side, the white surface of the black and white flexible coating layer being bonded with the transparent bonding material layer; and a black and white bonding material layer having a black surface on one side and a white surface on the other side, the black surface of the black and white bonding material layer being bonded with the black surface of the black and white flexible coating layer. The present disclosure also relates to a backlight module including the light bar adhesive tape as above described and a display device including the backlight module.
    Type: Grant
    Filed: February 5, 2016
    Date of Patent: April 23, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BOE OPTICAL SCIENCE AND TECHNOLOGY CO., LTD.
    Inventors: Qi Zhang, Deyu Meng