Light Emitting Diode (led) Patents (Class 362/612)
  • Patent number: 11460627
    Abstract: A backlight module including a light guide plate, a first light source, and a first optical film is provided. The light guide plate has a light incident surface, a light exiting surface, and a bottom surface, where the light incident surface is connected between the light exiting surface and the bottom surface, the light exiting surface is opposite to the bottom surface, and the bottom surface has a plurality of concentric ring-like first V-shaped microstructures. The first light source is disposed on a side of the light incident surface of the light guide plate, where a center of circle of the first V-shaped microstructures is aligned with the first light source. The first optical film is disposed on a side of the light exiting surface of the light guide plate. The first optical film has a plurality of concentric ring-like second V-shaped microstructures.
    Type: Grant
    Filed: October 6, 2020
    Date of Patent: October 4, 2022
    Assignee: Coretronic Corporation
    Inventor: Hung-Ta Chien
  • Patent number: 11462663
    Abstract: A light emitting diode including a circuit board, at least one light emitting diode chip disposed on the circuit board, the light emitting diode chip including a substrate, a light emitting structure disposed under the substrate and including a first conductivity type semiconductor layer and a second conductivity type semiconductor layer, a transparent electrode layer disposed on a lower surface of the light emitting structure, first and second electrode pads electrically connected to the first and second conductivity type semiconductor layers, respectively, a reflective layer covering at least part of the lower surface of the light emitting structure, a reflective member covering an upper surface of the light emitting diode chip and including at least one of a distributed Bragg reflector (DBR) and metal, and a light transmitting resin surrounding the light emitting diode chip and the reflective member on the circuit board.
    Type: Grant
    Filed: December 3, 2020
    Date of Patent: October 4, 2022
    Assignee: Seoul Semiconductor Co., Ltd.
    Inventor: Eun Ju Kim
  • Patent number: 11421852
    Abstract: The trend towards increasing the glazed area in automobiles has reduced the potential locations for mounting cabin lighting. This is especially true for vehicles having large panoramic glazing. Attempts to utilize integrated light sources within the glazing have had mixed results. Embedded LEDs in the laminate tend to be too bright for night driving. Edge feed illumination with light dispersing elements on the glass to date have only been able to provide low intensity levels. Both approaches tend to reduce visibility and aesthetics in the off state. The current invention provides a means and a method to produce a laminate which provides bright cabin lighting without compromising the function of the glazing to serve as a window, by creating a light dispersing layer that is substantially invisible when in the off state and very bright in the on state.
    Type: Grant
    Filed: September 29, 2021
    Date of Patent: August 23, 2022
    Assignee: AGP America S.A.
    Inventors: Mario Arturo Mannheim Astete, Massimo Michetti, Raghu K. Pendyala, Andres Fernando Sarmiento Santos, Ivan Arturo Cornejo, Gonzalo Rafael Vizcarra Mendoza, Jorge Ramos, José Nuñez-Regueiro, Alexey Krasnov
  • Patent number: 11415741
    Abstract: A surface light source includes: a light guide plate having an upper surface and a lower surface located opposite the upper surface, and comprising at least one through hole extending from the upper surface to the lower surface; a wiring substrate located on a lower surface side of the light guide plate and comprising a wiring layer; and at least one light source comprising a light-emitting element electrically connected to the wiring layer of the wiring substrate. The light source is located inside the through hole. The upper surface of the light guide plate has a first region including a plurality of protruding portions or depressed portions. In a plan view, a proportion of an area of the protruding portions or depressed portions per unit area of the first region increases among concentric parts of the first region in the direction away from the light source.
    Type: Grant
    Filed: September 3, 2021
    Date of Patent: August 16, 2022
    Assignee: NICHIA CORPORATION
    Inventors: Ryohei Yamashita, Toshinobu Katsumata
  • Patent number: 11378268
    Abstract: A luminaire (1) having a preferably flat light exit region (2) that is surrounded by a rectangular light frame (10), wherein the luminaire frame (10) spans a first plane (E) and has a frame height (H) that is perpendicular to the first plane (E) and, at one of its corners (11), a beveled surface (12) in which a plug contact (30) is arranged, and an electromechanical plug connector for a luminaire of this kind are provided.
    Type: Grant
    Filed: October 9, 2020
    Date of Patent: July 5, 2022
    Assignee: HERBERT WALDMANN GMBH & CO. KG
    Inventor: Marcus Eberhardt
  • Patent number: 11366264
    Abstract: A backlight module, a display module, and a display device are provided in the present disclosure, which belong to the technical filed field of display devices. A display device includes a light guide plate and a light-shielding member. The light guide plate includes a light exiting surface and a bottom surface that are oppositely arranged, and a light incident surface and a light shielding surface both connected with the light exiting surface and the bottom surface. The light shielding member is disposed on the light shielding surface, where the light-shielding member includes a light reflecting layer and a light absorbing layer, and the light-absorbing layer is located on a side of the light reflecting layer away from the light shielding surface.
    Type: Grant
    Filed: September 18, 2019
    Date of Patent: June 21, 2022
    Assignees: Beijing BOE Optoelectronics Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Fengping Wang, Rui Han, Dong Cui, Zeyuan Tong, Zhipeng Zhang, Wenyang Li, Yue Zhai, Zan Zhang, Shouyang Leng, Weining Chi, Rui Tan, Chang Dong
  • Patent number: 11320695
    Abstract: A backlight and a liquid crystal display. The backlight includes: a circuit substrate, a plurality of LED chips and a first silica gel layer. The plurality of LED chips are fixed by means of die bond on the circuit substrate, and the first silica gel layer is applied to the circuit substrate and wraps the plurality of LED chips. The first silica gel layer makes light emitted by the LED chips more diffuse, thus enhancing light emission uniformity of the backlight and reducing a thickness of a backlight module.
    Type: Grant
    Filed: December 29, 2018
    Date of Patent: May 3, 2022
    Inventors: Minghai Zhao, Shunli Chen, Yongchang Sang
  • Patent number: 11307442
    Abstract: A display module includes: a backplate; a backlight module disposed on the backplate; a liquid crystal panel disposed on the backlight module; a frame configured to fix the liquid crystal panel; a circuit board disposed on the backplate; and a conductive part. The conductive part is connected with the backplate or the circuit board, the conductive part includes an elastic portion connected with the liquid crystal panel, and at least part of the elastic portion is located between the liquid crystal panel and the frame and is in a compression state. A display device is further disclosed.
    Type: Grant
    Filed: January 22, 2019
    Date of Patent: April 19, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yongda Ma, Jianbo Xian, Yong Qiao
  • Patent number: 11280544
    Abstract: A front panel assembly of a drawer of a refrigerator, a drawer of a refrigerator and a refrigerator. The front panel assembly comprises a front panel body defining an accommodating cavity, and a light emitting mechanism provided in the accommodating cavity and comprising a light source, a light guide body and a reflecting member, wherein the light guide body is provided below the light source and has a slope, the reflecting member is provided obliquely below the slope, the front end face of the front panel body is provided with a light transmissive plate, and light rays emitted from the light source are transmitted to the slope by means of the light guide body, are reflected by the reflecting member, and are then emitted out from the light transmissive plate. The drawer of the refrigerator comprises a drawer body defining a storage space and the front panel assembly provided in the front of the drawer body. The refrigerator has the drawer of the refrigerator.
    Type: Grant
    Filed: August 29, 2019
    Date of Patent: March 22, 2022
    Assignees: QINGDAO HAIER REFRIGERATOR CO., LTD., HAIER SMART HOME CO., LTD.
    Inventors: Falin Yang, Shufei Ren, Jinqiang Dou, Mingkun Liu
  • Patent number: 11280948
    Abstract: The invention provides a lighting device (1) comprising (i) a plurality of sets (310) of each one or more light sources (10) configured to provide light source light (11), and (ii) a plurality of luminescent elements (5), each luminescent element (5) comprising an elongated luminescent body (100) having a radiation input face (111) for receipt of the light source light (11), each luminescent element (5) comprising a luminescent material (120) for conversion of at least part of the light source light (11) into luminescent material light (8), and each luminescent element (5) have an luminescent element exit window (12) for the luminescent material light (8); wherein the luminescent elements (5) are configured in a configuration wherein an average distance (d1) between neighboring luminescent bodies (100) is larger than a shortest luminescent element exit window distance (d2) between the neighboring luminescent element exit windows (12), thereby defining an interspace (320) between the neighboring luminescent bo
    Type: Grant
    Filed: July 9, 2018
    Date of Patent: March 22, 2022
    Assignee: SIGNIFY HOLDING B.V.
    Inventors: Rifat Ata Mustafa Hikmet, Ties Van Bommel, Dirk Kornelis Gerhardus De Boer
  • Patent number: 11274805
    Abstract: A lighting device for vehicles, including a light source and including a two-dimensional luminous element, which has a light-coupling narrow side, a light-decoupling flat side and a deflector for deflecting the light coupled in at the light-coupling narrow side in the direction of the light-decoupling flat side, the two-dimensional luminous element including segmenter, with the aid of which the light-decoupling flat side is divided into luminous segments having different emission characteristics.
    Type: Grant
    Filed: April 15, 2021
    Date of Patent: March 15, 2022
    Assignee: Hella GmbH & Co. KGaA
    Inventor: Martin Muegge
  • Patent number: 11231149
    Abstract: A light-emitting device includes: a substrate; a light-emitting element disposed on the substrate; a light-transmissive member disposed on a light extraction surface of the light-emitting element; and a cover that covers the light-emitting element with a gap between the cover and the light-emitting element, the cover including: an upper portion that is transmissive to light coming from the light-emitting element, a sidewall extending along a peripheral edge of the upper portion and having an outer lateral surface on which a projected portion is formed, and a recess defined by the upper portion and the sidewall. The projected portion is formed of a material that is deformable due to a pressing force generated in the event of an engagement with a counterpart member.
    Type: Grant
    Filed: September 17, 2020
    Date of Patent: January 25, 2022
    Assignee: NICHIA CORPORATION
    Inventors: Tsuyoshi Okahisa, Tomohito Shinomiya, Daizo Kiba
  • Patent number: 11215830
    Abstract: A head mounted display (HMD) includes an electronic display and a light director assembly. The electronic display includes a region of subpixels that are configured to emit light. The light director assembly is coupled to receive the light and to direct the light to an optical assembly of the HMD. The light director assembly includes a plurality of light directors configured to reduce an angular distribution of the light emitted from corresponding subpixels included in the region of subpixels.
    Type: Grant
    Filed: April 2, 2019
    Date of Patent: January 4, 2022
    Assignee: Facebook Technologies, LLC
    Inventor: Evan M. Richards
  • Patent number: 11217729
    Abstract: A covering element for covering an LED installed in a planar device surface, comprising a one- or multipart emitting body as well as a circumferential fastening web connected to the one- or multipart emitting body, wherein a receiving space is formed between the fastening web and the emitting body, into which an LED projecting over the device surface can dip.
    Type: Grant
    Filed: January 9, 2020
    Date of Patent: January 4, 2022
    Inventor: Hans-Peter Wilfer
  • Patent number: 11181814
    Abstract: A light source device includes a wavelength conversion member including a phosphor, and for converting excitation light into first light, a first light source section for emitting the excitation light, a second light source section for emitting second light, and a color combining element for generating composite light. The wavelength conversion member has first and second end surfaces, and a side surface. The excitation light enters the wavelength conversion member from the side surface, and the first light is emitted from the first end surface. The color combining element has first and second surfaces parallel to each other, and a third surface. The first light emitted from the wavelength conversion member enters the color combining element from the first surface, the second light emitted from the second light source section enters the color combining element from the third surface, and the composite light is emitted from the second surface.
    Type: Grant
    Filed: July 19, 2019
    Date of Patent: November 23, 2021
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Hidefumi Sakata, Junichi Suzuki
  • Patent number: 11177401
    Abstract: A scanning system can include an illuminator, configured to produce an illuminating beam, and a fixation unit, configured to mechanically support a sample to be measured within the illuminating beam. The illuminating beam can reflect off the sample to produce reflected light. The system can further include a sensor, positioned angularly away from the illuminator, configured to receive the reflected light. The illuminating beam can include a wavelength spectrum having a FWHM less than 100 nm. In some examples, the fixation unit can be positioned based, in part, on a position of the illuminator and the sensor. In some examples, the sensor can include at least one imaging element that produces an image of the sample. In some examples, the illuminating beam can include a calibration pattern. In some examples, the illuminating beam and the reflected light can be angularly separated between ten degrees and fifteen degrees.
    Type: Grant
    Filed: March 8, 2018
    Date of Patent: November 16, 2021
    Assignee: Zfx GmbH
    Inventors: Hermann Spiegel, Andreas Geier
  • Patent number: 11175764
    Abstract: The present disclosure relates to a touch display device including a display panel and a support structure. The display panel includes a display portion, a bent portion and a fixed portion. The bent portion is located between the display portion and the fixed portion, and the fixed portion is bent, through the bent portion, to a back side of the display portion. The support structure includes a first protective layer and a second protective layer oppositely arranged and located between the display portion and the fixed portion, a support layer located between the first protective layer and the second protective layer, and an adhesive layer located between the support layer and the second protective layer. The adhesive layer is provided with a structure configured to disperse stress generated by the display panel during bending.
    Type: Grant
    Filed: April 30, 2020
    Date of Patent: November 16, 2021
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Penghao Gu, Paoming Tsai, Peng Cai
  • Patent number: 11169318
    Abstract: Disclosed in an embodiment is a lighting device comprising: a light conversion module including one surface and the other surface; and a light source module disposed at a side surface of the light conversion module, wherein the light source module comprises a plurality of light emitting elements disposed so as to be spaced in a first direction, the first direction is a thickness direction of the light conversion module, and at least one among the plurality of light emitting elements is disposed higher than the one surface of the light conversion module in the first direction.
    Type: Grant
    Filed: October 19, 2020
    Date of Patent: November 9, 2021
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Eay Jin Lim, Dong Hyun Lee
  • Patent number: 11143385
    Abstract: A manufacturing method for a light board includes step a, covering a light reflection layer on one surface of a galvanized plate; step b, producing a forming space by applying a stamping process along a direction from the light reflection layer to the galvanized plate; and step c, disposing a plurality of light bead bars on the light reflection layer. Accordingly, as one surface of the galvanized plate is covered by the light reflection layer, the application of the light reflection layer at the inner surface of the board increases the light reflection performance of the board so as to improve the whole lighting effect and the illumination performance of the light board. Moreover, as the outer surface of the board is the galvanized plate, the outer surface of the board has the anti-corrosion effect.
    Type: Grant
    Filed: May 11, 2020
    Date of Patent: October 12, 2021
    Assignee: Xiamen PVTECH Co., Ltd.
    Inventors: Fuxing Lu, Xiaoping Lan
  • Patent number: 11119267
    Abstract: A reflective sheet of a display apparatus includes a sheet configured to reflect light; and a beading pattern protruding from a surface of the sheet.
    Type: Grant
    Filed: April 29, 2019
    Date of Patent: September 14, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Byoungjin Cho, Yoonki Park, Jongbin Kim, Wonyeop Jang
  • Patent number: 11112556
    Abstract: Edge-lit lighting systems employing a light module for mounting a LED light source with ease of installation and removal on fixtures are described where the frame for the lighting system bears an internal skeletal pre-load bar to keep the frame planar. Multiple frames may be combined with alignment plates and joining hardware and a suspension system that gives the fixtures stability, strength and great functional advantages when used in various forms of architectural lighting.
    Type: Grant
    Filed: May 29, 2018
    Date of Patent: September 7, 2021
    Assignee: Nulite Lighting
    Inventors: Valerica Grigore, Brian Beck, Patrick Hersco
  • Patent number: 11079096
    Abstract: A lighting fixture includes a light source module having a base with a surface having first and second lateral edges, and a plurality of light sources disposed on the surface of the base. A cover disposed over the light source module includes a light-transmissive main surface terminating at third and fourth lateral edges. A first light-transmissive side surface extends from the third lateral edge towards the first lateral edge, and a second light-transmissive side surface extends from the fourth lateral edge towards the second lateral edge. The first lateral edge is laterally offset by a first distance from a first orthogonal reference plane with respect to the third lateral edge, and the second lateral edge is laterally offset by a second distance from a second orthogonal reference plane with respect to the fourth lateral edge.
    Type: Grant
    Filed: May 31, 2019
    Date of Patent: August 3, 2021
    Assignee: Nichia Corporation
    Inventors: Susumu Ninomiya, Tetsutoshi Ishida
  • Patent number: 11073654
    Abstract: Provided is a light emitting module, including: a light guide plate having a first main surface and a second main surface opposite to the first main surface; a plurality of light source members disposed on a second main surface side, each of the light source members including a light emitting element having a main light emitting surface, an electrode formation surface located opposite to the main light emitting surface, and a side surface between the main light emitting surface and the electrode formation surface, and a wavelength conversion member covering the main light emitting surface and the side surface of the light emitting element; and a sealing member covering the plurality of light source members and the second main surface of the light guide plate.
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: July 27, 2021
    Assignee: NICHIA CORPORATION
    Inventor: Hiroki Yuu
  • Patent number: 11069178
    Abstract: A display device includes a light guide plate 2 capable of displaying a plurality of patterns (21-1 to 21-9) and including an incident surface; a plurality of light sources (3-1 to 3-9) disposed opposite to the incident surface and corresponding to the plurality of patterns; a storage 5 configured to store a reference table that represents a relationship between a turn-on state number and a combination of light sources to be turned on among the plurality of light sources for each of a plurality of the turn-on state numbers; and a controller 7 configured to specify the combination of light sources to be turned on by referring to the reference table, the combination corresponding to the turn-on state number included in turn-on control information, and control turn-on and turn-off of each light source according to the combination of the light sources.
    Type: Grant
    Filed: July 24, 2018
    Date of Patent: July 20, 2021
    Assignee: Omron Corporation
    Inventors: Shohei Hisaki, Junya Fujita, Jun Kishimoto, Shogo Ikeda, Masanori Mori, Yoshihiko Takagi
  • Patent number: 11016242
    Abstract: A display device according to the present disclosure can include a display panel, a backlight assembly providing light toward the display panel, a set cover including a rear cover part and a side cover part, wherein the rear cover part covers a rear surface of the backlight assembly and the side cover part extending from the rear cover part covers a side surface of the backlight assembly, and a guide panel coupled to the set cover and supporting edges of the display panel. The set cover can be composed of plastic, and the rear cover part and the side cover part can have an integrally formed shape and can be exposed to outside.
    Type: Grant
    Filed: May 20, 2020
    Date of Patent: May 25, 2021
    Assignee: LG DISPLAY CO., LTD.
    Inventor: Yongtaek Woo
  • Patent number: 11015779
    Abstract: A vehicle lamp includes: a first light source; and a light guide including a rod-shaped part and a plate-shaped part. The light guide has a structure in which a circumferential surface of the rod-shaped part is connected to a side surface of the plate-shaped part. The plate-shaped part includes a light diffusion member inside. Light of the first light source is incident on the rod-shaped part from one end of the rod-shaped part, enters the plate-shaped part from the circumferential surface of the rod-shaped part, and is output by the light diffusion member from a principal surface of the plate-shaped part.
    Type: Grant
    Filed: April 17, 2019
    Date of Patent: May 25, 2021
    Assignee: KOITO MANUFACTURING CO., LTD.
    Inventors: Asami Sakashita, Hiroaki Hara
  • Patent number: 11009645
    Abstract: A backlight module including a light guide plate, a light source, an optical film, a first prism sheet and a second prism sheet is provided. The light guide plate has a light incident surface and a light emitting surface. The light source is disposed on a side of the light incident surface. The optical film is overlapped with the light emitting surface and includes a substrate, a plurality of optical microstructures and a first diffusion structure layer. The optical microstructures are disposed on a light incident side of the substrate. An extending direction of the optical microstructures intersects with the light incident surface. The first diffusion structure layer is disposed on a light emitting side of the substrate and is overlapped with the optical microstructures. The first prism sheet and the second prism sheet are overlapped with the optical film and are positioned on the light emitting side.
    Type: Grant
    Filed: May 25, 2020
    Date of Patent: May 18, 2021
    Assignee: Nano Precision Taiwan Limited
    Inventors: Ching-Hsiang Li, Shu-Ping Yang, Fang-Hsuan Su
  • Patent number: 10989387
    Abstract: A light device for a vehicle includes an enclosure having a transmissive portion configured to transmit light generated within the enclosure. A matrix material is contained within the enclosure and includes quantum dots dispersed throughout the matrix material. An energy source is configured to couple energy to the quantum dots such that the quantum dots emit light that is transmitted through the transmissive portion of the enclosure.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: April 27, 2021
    Assignee: Valeo North America, Inc.
    Inventor: Valere Calais
  • Patent number: 10976479
    Abstract: The invention provides a lighting device (1) comprising: —one or more light sources (10) configured to provide light source light (11); —a luminescent element (5) comprising an elongated light transmissive body (100); the elongated light transmissive body (100) comprising a luminescent material (120) configured to convert at least part of light source light (11) received at one or more radiation input faces (111) into luminescent material light (8), and the luminescent element (5) configured to couple at least part of the luminescent material light (8) out at the first radiation exit window (112) as converter light (101); wherein the light transmissive body (100) has a first index of refraction n1; —a beam shaping optical element (224) optically coupled with the first radiation exit window (112), the beam shaping optical element comprising a radiation entrance window (211) configured to receive at least part of the converter light (101); wherein the beam shaping optical element (224) has a second index of ref
    Type: Grant
    Filed: March 15, 2018
    Date of Patent: April 13, 2021
    Assignee: SIGNIFY HOLDING B.V.
    Inventors: Cornelis Johannes Maria Denissen, Dirk Kornelis Gerhardus De Boer, Hendrik Johannes Boudewijn Jagt, Leendert Van Der Tempel, Gerald Frederik Belder, Johannes Martinus Jansen
  • Patent number: 10976042
    Abstract: A power adapter for LED module lighting systems has an orifice for receiving and maintaining an LED modular lighting stick inserted with the orifice, a female electrical receptacle for receiving an electrical plug extending from the LED modular lighting stick, and openings for electrical plugs which are connected to an electrical power supply board. In this manner, high voltage electrical power from the power supply board is converted to lower voltage electrical power to the LED modular lighting stick.
    Type: Grant
    Filed: October 7, 2020
    Date of Patent: April 13, 2021
    Inventor: Sikai Chen
  • Patent number: 10971657
    Abstract: A light emitting module includes: a plurality of light emitting elements each having a primary light emitting surface and a lateral surface; a plurality of wavelength conversion members arranged respectively on the primary light emitting surfaces of the plurality of light emitting elements; and a lightguide plate having a first primary surface and a second primary surface and arranged continuously on the plurality of wavelength conversion members so that the second primary surface faces the plurality of wavelength conversion members, wherein the lightguide plate includes a plurality of recessed portions located on the second primary surface, and a lateral surface of at least one of the plurality of wavelength conversion members is partially in contact with an inner lateral surface of at least one of the plurality of recessed portions.
    Type: Grant
    Filed: August 1, 2019
    Date of Patent: April 6, 2021
    Assignee: NICHIA CORPORATION
    Inventors: Mamoru Imada, Toshiaki Moriwaki, Yusaku Achi, Ryohei Yamashita
  • Patent number: 10962198
    Abstract: There is provided a reflector having tray shapes excellent in shape retention, specifically, a reflector having tray shapes which change little even when exposed to a moist heat environment for a long period of time and is suitable for a direct type backlight unit, an LED lighting unit, and an illumination for a plant factory.
    Type: Grant
    Filed: February 26, 2018
    Date of Patent: March 30, 2021
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Hirohito Uchida, Yasushi Takada, Takashi Isozaki
  • Patent number: 10928581
    Abstract: The present invention discloses to a backlight module and a display device. A flexible printed circuit board is connected to a step of a plastic frame, so that the flexible printed circuit board can be prevented from being adhered to a light guide plate, and thus a distance between a light source and an iron frame can be reduced, and heat dissipation performance of the backlight module can be enhanced. A blocking wall is disposed on each of two side faces of a light-emitting unit perpendicular to the plastic frame, and a reflective film is disposed on a side surface of the blocking wall facing the light-emitting unit, so that light emitted from the light-emitting unit can be collected and reflected, and a greater amount of light can enter the light guide plate from the light-emitting unit, enhancing luminous efficiency of the backlight module, and reducing manufacturing costs.
    Type: Grant
    Filed: September 9, 2019
    Date of Patent: February 23, 2021
    Assignee: Wuhan China Star Optoelectronics Technology Co., Ltd.
    Inventor: Jian Liu
  • Patent number: 10921508
    Abstract: A method of assembling a light fixture includes assembling a light guide into a backing structure. The backing structure includes a sheet and first and second flanges at two opposite edges of the sheet. A row of light emitting diodes (LEDs) is installed on the first flange, positioned to direct light away from the first flange and toward the second flange, and generally parallel with the major surfaces of the flat sheet. The light guide is positioned between the flanges and against the backing structure. The width of the light guide is less than the distance between the LEDs and the second flange. The backing structure and the light guide are bent toward a bottom surface of the backing structure such that the flanges are drawn toward each other and such that the LEDs are drawn toward an input face of the light guide.
    Type: Grant
    Filed: March 6, 2020
    Date of Patent: February 16, 2021
    Assignee: ABL IP Holding LLC
    Inventors: Kevin D'Anna, Fardin Faruque, Clifford Wood
  • Patent number: 10914889
    Abstract: Disclosed herein are a backlight module and a display device. The backlight module includes: a light guide plate, a light source assembly located on a first surface of the light guide plate, and a support bracket configured to support the light guide plate and the light source assembly; wherein the support bracket further includes an installation portion for fixing the light source assembly, and an elastic element arranged on the installation portion configured to adjust a gap between the light source assembly and the first surface of the light guide plate to a first distance.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: February 9, 2021
    Assignees: BOE Technology Group Co., Ltd., Chengdu BOE Optoelectronics Technology Co., Ltd.
    Inventors: Yu Du, Suimang Song, Yifan Li, Min Liu
  • Patent number: 10914447
    Abstract: A vehicle lamp includes a lens that has spaced apart first and second surfaces that extend to terminate at an edge. The first surface provides an exterior face of the lamp. The second surface provides an interior that contains the edge. The edge is oriented to supply a reflected light from the exterior face back through the exterior face. A light is arranged near the first surface opposite the interior. The light is configured to selectively shine light into the lens from outside the interior and supplement the reflected light.
    Type: Grant
    Filed: September 5, 2019
    Date of Patent: February 9, 2021
    Assignee: Continental Automotive Systems, Inc.
    Inventors: Apolo Zeus Escudero-Uribe, Christian Javier Enriquez-Cervantes, Alejandro Hernandez Gonzalez-Barcena
  • Patent number: 10901131
    Abstract: A luminous glazing is provided that includes a pane and a light guide. The pane has two opposite faces and is transparent in the visible spectrum. The light guide has a core surrounded by a cladding so that the core is capable of guiding light along the longitudinal extension of the light guide. The light guide includes a light scattering element so that when light is injected into one of the end faces if the light guide, the light guide is a side-emitting light guide and forms a linear light source. The light guide extends along the faces and is disposed on one face such that the light scattering area is spaced apart from the face and so that light guided in the core, scattered, and laterally exiting from the light guide enters the transparent pane through the face and is be transmitted through the pane to the opposite face.
    Type: Grant
    Filed: January 29, 2020
    Date of Patent: January 26, 2021
    Assignee: SCHOTT AG
    Inventors: Stephan Schabacker, Bernd Woelfing, Eric Senner
  • Patent number: 10877313
    Abstract: The present invention relates to a lighting apparatus using LEDs as light sources and a display using the lighting apparatus, particularly, the present invention provides a lighting apparatus including: a plurality of light sources located on a printed circuit board; and a reflecting unit provided on the printed circuit board; and a spaced area provided inside the reflective unit.
    Type: Grant
    Filed: October 19, 2018
    Date of Patent: December 29, 2020
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Kwang Ho Park, Chul Hong Kim, Moo Ryong Park, Byoung Eon Lee
  • Patent number: 10859762
    Abstract: A planar lighting device according to an embodiment includes a light guide plate, a plurality of light sources, and a strip-shaped member. The light guide plate has a side surface and two main surfaces. One of the two main surfaces emits light entered from the side surface. The light sources face the side surface and are arranged in a longitudinal direction of the side surface and emit light that enters the side surface. The strip-shaped member extends in the longitudinal direction of the side surface and is adhered to a region on at least one of the two main surfaces closer to the light sources. The strip-shaped member includes non-adhesive portions disposed at positions facing regions of the at least one of the two main surfaces in front of the light sources. The non-adhesive portions do not adhere to the light guide plate.
    Type: Grant
    Filed: September 5, 2019
    Date of Patent: December 8, 2020
    Assignee: MINEBEA MITSUMI INC.
    Inventor: Kazumasa Adachi
  • Patent number: 10845691
    Abstract: A light source device includes a light source section configured to emit first light, a light guide body configured to propagate a part of the first light, a wavelength conversion section including a phosphor which is excited by another part of the first light and transmitted though the light guide body, and emits second light, and a light combining section configured to combine the part of the first and second lights together. The light guide body includes a first and a second side surface opposed to each other, and the wavelength conversion section includes a third and a fourth side surface opposed to each other. The light source section is disposed at a position opposed to the first side surface, and the light guide body and wavelength conversion section are disposed in parallel to each other so that the second and third side surfaces are opposed to each other.
    Type: Grant
    Filed: December 2, 2019
    Date of Patent: November 24, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Junichi Suzuki, Hidefumi Sakata, Shingo Komiyama
  • Patent number: 10845528
    Abstract: Disclosed in an embodiment is a lighting device comprising: a light conversion module including one surface and the other surface; and a light source module disposed at a side surface of the light conversion module, wherein the light source module comprises a plurality of light emitting elements disposed so as to be spaced in a first direction, the first direction is a thickness direction of the light conversion module, and at least one among the plurality of light emitting elements is disposed higher than the one surface of the light conversion module in the first direction.
    Type: Grant
    Filed: November 3, 2017
    Date of Patent: November 24, 2020
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Eay Jin Lim, Dong Hyun Lee
  • Patent number: 10838202
    Abstract: Image display device is used in a head-up display. Image display device includes an illumination unit, light guide plate, light beam controller, and display unit. The illumination unit includes a plurality of light sources. Light guide plate includes incident surface into which light from the illumination unit enters, incident surface including a plurality of convex surfaces each of which is opposed to each of the plurality of light sources, and output surface disposed in a direction intersecting incident surface and from which the light incident from incident surface is output. Light beam controller controls a traveling direction of the light output from output surface. Display unit transmits the light output from light beam controller to display an image.
    Type: Grant
    Filed: May 10, 2018
    Date of Patent: November 17, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventor: Yosuke Asai
  • Patent number: 10823893
    Abstract: The invention provides a lighting device (1) comprising a light source configured to provide light source light and a luminescent element (5) comprising an elongated light transmissive body (100), the elongated light transmissive body (100) comprising a side face (140), wherein the elongated light transmissive body (100) comprises a luminescent material (120) configured to convert at least part of the light source light (11) selected from one or more of the UV, visible light, and IR received by the elongated light transmissive body (100) into luminescent material radiation (8). The side face comprises the radiation input face (111), and the body further comprises a first face (141) and a second face (142) defining a length of the body, wherein the second face comprises a first radiation exit window (112).
    Type: Grant
    Filed: July 5, 2018
    Date of Patent: November 3, 2020
    Assignee: SIGNIFY HOLDING B.V.
    Inventors: Christoph Gerard August Hoelen, Simon Eme Kadijk, Ludovicus Johannes Lambertus Haenen, Yun Li
  • Patent number: 10816854
    Abstract: A backlight unit includes a diffusion plate, wherein the diffusion plate includes a first region along edges of the diffusion plate, and a second region surrounded by the first region, and wherein a thickness of the first region decreases toward an outer side direction of the diffusion plate.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: October 27, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: Dong-Hwi Kim, Ki-Seong Kim, Ji-Seok Yang
  • Patent number: 10816713
    Abstract: A surface light source device includes a light source; a light guide plate that has a light entrance surface through which light enters, and that emits the light entering through the light entrance surface from a light exit surface; a wiring board; and a metal frame. The metal frame includes a bottom portion having a bottom surface that faces a surface on an opposite side to the light exit surface, a side wall erected on an outer periphery of the bottom surface, and a projecting portion provided on the side wall so as to project toward the bottom surface side. The metal frame houses the light source, the light guide plate, and the wiring board. At least a part of the light source is disposed between the bottom portion and the projecting portion, and the wiring board is disposed between the light source and the bottom portion.
    Type: Grant
    Filed: February 27, 2018
    Date of Patent: October 27, 2020
    Assignee: Omron Corporation
    Inventors: Shinji Miyazaki, Kota Yonezawa, Masakazu Komano, Tetsuo Hayashi, Junichiro Tsuji, Daido Uchida, Koichi Takemura, Kazunori Harada, Takashi Onishi, Kazuhide Hirota, Kazuyuki Otake
  • Patent number: 10809436
    Abstract: A method, apparatus, and system are disclosed for increasing light extraction efficiency in a light guide optical system. The light guide optical system may comprise a light emitting source. The light emitting source may be, for example, a light-emitting diode (LED) or plurality of LEDS. The light guide optical system may also comprise a light guide plate (LGP). The LGP may include light extraction features located on surfaces of the LGP. The LGP may also include a shaped injection surface on an input surface of the LGP. The shaped injection surface may be angled to deviate near-parallel light emitted from the LED to enable the near-parallel light emitted from the LED to be extracted from the LGP via the light extraction features. The shaped injection surface may be a split edge (i.e. a V-groove) or a curved edge.
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: October 20, 2020
    Assignee: Lumileds LLC
    Inventors: Frederic Stephane Diana, Jeroen Den Breejen, Gregory Guth
  • Patent number: 10809437
    Abstract: An optical member includes a light guide plate having a top surface, a bottom surface, and side surfaces that connect the top surface and the bottom surface three-dimensionally and have a smaller area than the top surface and the bottom surface, a low refractive layer disposed on a side surface of the light guide plate and having a lower refractive layer than the light guide plate, and a wavelength conversion layer disposed on the low refractive layer, the wavelength conversion layer receiving first wavelength light and converting the first wavelength light into second wavelength light, which is of a different wavelength band from the first wavelength light.
    Type: Grant
    Filed: July 10, 2018
    Date of Patent: October 20, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seong Yong Hwang, Tae Gil Kang, Sang Won Lee
  • Patent number: 10809450
    Abstract: A blue light emissions management system includes a blue light emitting device that is configured to emit blue light. The blue light emissions management system also includes a display screen stack that is located adjacent the blue light emitting device and that is configured to receive blue light emitted from the blue light emitting diode. The display screen stack includes a doped layer that includes a doping material in a doping amount that configures the doped layer to convert a first portion of the blue light received by the display screen stack to at least one of red light and green light.
    Type: Grant
    Filed: January 29, 2018
    Date of Patent: October 20, 2020
    Assignee: Dell Products L.P.
    Inventors: Deeder M. Aurongzeb, Stefan Peana
  • Patent number: 10801695
    Abstract: Disclosed is a lamp. The lamp comprises a reflection hood (110), a light source assembly (120) and a reflection member (130). The reflection hood (110) is made of diffuse reflection material, is a curved face formed by the translation of an elliptic arc, and has a light emitting outlet (114), and an inner surface thereof is a reflection face (112). The light source assembly (120) is fixed to an end of the reflection face (112) and the included angle between a tangent line, at the point of intersection of a central light emitted therefrom and the reflection face (112), and the central light is 130° to 170°. The reflection member (130) is fixed to an end of the reflection face (112) and has a reflection wall (132) parallel to the central light. The central light is located between the reflection hood (110) and the reflection member (130).
    Type: Grant
    Filed: May 17, 2017
    Date of Patent: October 13, 2020
    Assignee: FLYING TECHNOLOGY CO., LTD.
    Inventors: Songling Jiao, Bojian Peng
  • Patent number: 10768360
    Abstract: A backlight module and a display device are provided. The backlight module includes a frame, a flexible circuit board, a light guide plate, and multiple light emitting units. The frame includes opposite first and second borders, and opposite third and fourth borders. The multiple light emitting units are fixed on the flexible circuit board. The flexible circuit board is located inside the frame and is close to the first border. There is a first gap between the light emitting unit closest to the third border and the third border, and between the light emitting unit closest to the fourth border and the fourth border. The light guide plate is fixed to the flexible circuit board. The light guide plate includes a light guide plate body and two spacers. Each of the two spacers is located in the first gap and is bonded to the frame.
    Type: Grant
    Filed: October 29, 2018
    Date of Patent: September 8, 2020
    Assignee: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventor: Haoer Zhang