Light Emitting Diode (led) Patents (Class 362/612)
  • 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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
  • Patent number: 10768359
    Abstract: A display apparatus including a display panel configured to display an image, a light source module including a plurality of light sources, a light guide plate configured to guide light generated by the light source module to the display panel, and a coupling member including a first surface configured to support the light guide plate, a second surface configured to support the light source module, the second surface being disposed opposite the first surface, and a support provided between the first surface and the second surface and configured to support the light guide plate spaced apart from the light source module.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: September 8, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jong Bin Kim, Dae Young Kim, Hyung-Ki Kim, Kil Hong Lee, Duk Jin Jeon
  • Patent number: 10761372
    Abstract: An image display apparatus includes: a display panel; a back frame including a flat portion and a side wall; light sources arranged in rows and columns at substantially equal intervals in the flat portion; support pins arranged in rows and columns at substantially equal intervals in the flat portion and away from the light sources; a diffuser panel diffusely emitting light from the light sources toward the display panel; and a luminance-equalizing sheet that is supported on the support pins, between the diffuser panel and the back frame, has an outer edge substantially overlapping an outer edge of an active area of the display panel, and transmits part of the light from the light sources toward the diffuser panel. The luminance-equalizing sheet protrudes in a curved manner toward the side wall between the diffuser panel and the side wall such that distance to the back frame gradually decreases outward.
    Type: Grant
    Filed: February 6, 2018
    Date of Patent: September 1, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Takamitsu Isono, Toshihiko Ura, Koujirou Higa
  • Patent number: 10739638
    Abstract: An electronic device may have a display with a backlight. The backlight provides backlight illumination for an array of pixels that is displaying images. The backlight may include an array of cells. Each cell may contain a light source with one or more light-emitting diodes and a cavity reflector that reflects light from the light source outwardly through a diffuser for use in forming the backlight illumination. The light sources may be mounted to a printed circuit. Support posts on the printed circuit may be used to maintain the diffuser at a fixed distance from the printed circuit. Sensors on the printed circuit may be used to measure separation distances between the printed circuit and diffuser. Adjustments to pixel gain profiles can be made based on the measured separation distances.
    Type: Grant
    Filed: May 10, 2019
    Date of Patent: August 11, 2020
    Assignee: Apple Inc.
    Inventors: Rong Liu, Yu P. Sun, Erik A. Zweigle, Jun Qi, Victor H. Yin, Ziruo Hong, Sungwon Bae
  • Patent number: 10712597
    Abstract: A display device is disclosed. The display device includes a display panel configured to display an image, an optical member under the display panel, and a support member under the optical member. The display device further includes a first adhesive member between the display panel and the optical member, and a second adhesive member between the optical member and the support member. The first adhesive member has higher transmittance than the second adhesive member.
    Type: Grant
    Filed: July 31, 2018
    Date of Patent: July 14, 2020
    Assignee: LG Display Co., Ltd.
    Inventor: Tae-Soo Jo
  • Patent number: 10705276
    Abstract: A lighting device includes light sources having light emission surfaces, a light guide plate having a light entering edge surface, and a light collecting member. The dimension of each light emission surface perpendicular to the extending direction of the light entering edge surface is greater than a thickness of the light guide plate. The light collecting member includes light collecting holes through which the light from the light sources is collected to the light entering edge surface and each of which includes a light source side hole edge section and a light guide plate side hole edge section. The light source side hole edge section is opposite the light source and has an inner area and the light guide plate side hole edge section is opposite the light entering edge surface and has an inner area smaller than the inner area of the light source side hole edge section.
    Type: Grant
    Filed: March 15, 2019
    Date of Patent: July 7, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Junichi Masuda
  • Patent number: 10697608
    Abstract: A lamp for a vehicle capable of forming an image having a three-dimensional effect is provided. The lamp for the vehicle includes a first image forming part configured to emit light incident from at least one first light source to form a first image, and a second image forming part configured to emit light incident from at least one second light source to form a second image combined with the first image to form a predetermined pattern shape, wherein the light emitted from the second image forming part passes through the first image forming part to form the second image, and the first image and the second image have different color characteristics.
    Type: Grant
    Filed: October 15, 2018
    Date of Patent: June 30, 2020
    Assignee: SL Corporation
    Inventors: Dong Hyun Kim, Byoung Hwa Jung
  • Patent number: 10688914
    Abstract: Provided is to a vehicle lamp capable of displaying images with various colors or shapes. The vehicle lamp includes an image display for displaying an image formed by a plurality of image forming units, each of the plurality of image forming units including a light source unit and a light guide for emitting light incident from the light source unit; and a controller configured to generate an image at least one of the plurality of image forming units. In particular, the plurality of image forming units comprises a first image forming unit comprising a first light source unit and a first light guide; and a second image forming unit comprising a second light source unit and a second light guide. The light emitted from the first light guide is transmitted through the second light guide and emitted.
    Type: Grant
    Filed: August 2, 2019
    Date of Patent: June 23, 2020
    Assignee: SL Corporation
    Inventors: Won Hong Jeon, Sun Kyoung Park, Da Il Kang
  • Patent number: 10683988
    Abstract: Linear lighting with a mirrored coating is disclosed, as is a luminaire including the linear lighting.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: June 16, 2020
    Assignee: Elemental LED, Inc.
    Inventors: Matthew John, Jeffrey L. Kuo, Andrew Lassen, Travis Irons, Adam L. Pruitt
  • Patent number: 10663645
    Abstract: According to one embodiment, an illumination device includes a light guide, a frame surrounding the light guide, a light emitting unit located between the light guide and the frame, and a wiring substrate electrically connected to the light emitting unit. The wiring substrate includes a convex portion projecting in a first direction as seen in plan view. The frame includes a concave portion facing the convex portion as seen in plan view. The concave portion is spaced apart from the convex portion.
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: May 26, 2020
    Assignee: Japan Display Inc.
    Inventors: Toji Aoshima, Shiori Akamatsu, Takashi Ota, Tomohisa Onishi
  • Patent number: 10641442
    Abstract: An optical lens in embodiment discloses: first and second bottom surfaces spaced apart from each other and having a longer in a second axial direction than to a first axial direction at a lower portion of a transparent body; a concave recess between the first and second bottom surfaces; plurality of incident surfaces having a first incident surface on the recess, second and third incident surfaces corresponding to each other on both sides of the recess; first and second total reflective surfaces disposed on opposite sides of the body; and a first exit surface on the body; and second and third exit surfaces on a both sides the first exit surface.
    Type: Grant
    Filed: February 17, 2017
    Date of Patent: May 5, 2020
    Assignee: LG Innotek Co., Ltd.
    Inventor: Min Soo Kang
  • Patent number: 10634840
    Abstract: An imaging directional backlight apparatus including a waveguide, a light source array, for providing large area directed illumination from localized light sources. The waveguide may include a stepped structure, in which the steps may further 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 to provide discrete illumination beams exiting from the top surface of the waveguide. Viewing windows are formed through imaging individual light sources and hence defines the relative positions of system elements and ray paths. Lateral non-uniformities of output image are improved by means of adjustment of input aperture shape and reflective aperture shape. Cross talk in autostereoscopic and privacy displays may further be improved by light blocking layers arranged on the input end of the waveguide.
    Type: Grant
    Filed: June 24, 2019
    Date of Patent: April 28, 2020
    Assignee: RealD Spark, LLC
    Inventors: Michael G. Robinson, Graham J. Woodgate, Jonathan Harrold, Eric Sommerlade
  • Patent number: 10627061
    Abstract: An illumination sill plate capable of replacing at least one power cell contains: a base, a light emitting module, the at least one power cell, a transparent cap, a cover plate, and at least one anti-leakage element. The base includes a waterproof barrier and a receiving groove. The light emitting module is fixed in the receiving groove. The at least one power cell is accommodated in the receiving groove so as to supply power to the light emitting module. The transparent cap is configured to cover an opening of the waterproof barrier and has at least one orifice. The cover plate is removably covered on the base and is removed from the base, and the cover plate includes a display window. The at least one anti-leakage element is mounted below the cover plate and is matingly accommodated in the two orifices respectively, when the cover plate is removably covered on the base.
    Type: Grant
    Filed: July 31, 2019
    Date of Patent: April 21, 2020
    Assignee: HON YU AUTO PARTS CO., LTD.
    Inventor: Yin-Teng Hsiao
  • Patent number: 10627567
    Abstract: A liquid crystal display device includes a liquid crystal panel and a light guide plate below the liquid crystal panel. The liquid crystal display device also includes first and second LED packages that are arranged alternately along a light entering surface of the light guide plate. Additionally, the liquid crystal display device includes a printed circuit board that has first and second portions facing each other and at which the first and second LED packages are mounted, respectively. The printed circuit board also includes a third portion, in a bent state, which connects an end of the first portion in a lengthwise direction, and an end of the second portion in a lengthwise direction. The liquid crystal display device further includes a first guide portion that is located at an outer side of the first and second LED packages. The first guide portion is interposed between and attached to the first and second portions.
    Type: Grant
    Filed: October 20, 2017
    Date of Patent: April 21, 2020
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Jae-Hyun Park, Sang-Hyun Lee, Chi-Yong Kim
  • Patent number: RE48053
    Abstract: A liquid crystal display (LCD) includes a cover assembly; a liquid crystal panel; a light guide plate configured to guide light to the liquid crystal panel; a printed circuit board (PCB) to which the light guide plate is mounted; and a light emitting diode (LED) package which is mounted on the PCB and emits light to a lateral side of the light guide plate. The PCB includes a base substrate; a connecting hole which is formed in the base substrate to couple the base substrate to the cover assembly with a connecting member; an insulating layer which is coated on the base substrate while avoiding a head part of the connecting member; and a spacer tape which is provided on an upper side of the insulating layer so that the light guide plate is evenly mounted on the PCB.
    Type: Grant
    Filed: July 8, 2016
    Date of Patent: June 16, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Suk Ju Choi, Kun Ho Cho, Yong Hun Kwon, Kye Hoon Lee, Gil Tae Hur, Young Min Lee