Light Modifier With Emission Face Combined With Light Guide Plate Patents (Class 362/606)
  • Patent number: 10175410
    Abstract: The invention relates to a light comprising: a primary lightpipe (2); and, a light source (1). The primary lightpipe may have: a lightpipe inlet side (3) constructed and arranged to receive light from the light source and to allow it to enter the primary lightpipe; a back side (6b) being provided with a serrated structure (5) comprising a reflecting surface (10) to reflect light from the light source; and, a front side (6a) constructed and arranged to internally reflect the light received from the light source to the back side of the primary lightpipe and to transmit light received from the reflecting surface.
    Type: Grant
    Filed: March 6, 2015
    Date of Patent: January 8, 2019
    Assignee: ORTANA ELEKTRONIK YAZILIM TAAH. SAN. VE TIC. A.S.
    Inventors: Umut Aydin, Birhan Uguz
  • Patent number: 10175409
    Abstract: A backlight module and a display apparatus are provided. The backlight module includes: a light bar, a quantum dot encapsulated tube and a light guide plate; the light bar and light guide plate are disposed at two sides of quantum dot encapsulated tube respectively, the light bar and quantum dot encapsulated tube are disposed in parallel, the light bar and quantum dot encapsulated tube are located at a light incident surface side of light guide plate, a plurality of LED lights are disposed on the light bar at a side facing towards the quantum dot encapsulated tube, an LED light corresponding to valid area of quantum dot encapsulated tube is monochromatic LED light, an LED light corresponding to invalid area of quantum dot encapsulated tube is white LED light, and invalid area of quantum dot encapsulated tube is within irradiation range of the white LED light.
    Type: Grant
    Filed: October 14, 2016
    Date of Patent: January 8, 2019
    Assignees: HISENSE ELECTRIC CO., LTD., HISENSE USA CORPORATION, HISENSE INTERNATIONAL CO., LTD.
    Inventors: Fulin Li, Jihang Ma, Minhua Li
  • Patent number: 10175411
    Abstract: A protective cover adaptive to an electronic device is provided. The protective cover comprises a connecting portion, a cover body and a light guide plate. A side of the cover body is connected to the connecting portion and is movable relative to the connecting portion. The light guide plate includes a light input surface, an attachment surface, and a light output surface. The light input surface and the attachment surface are opposite to each other. The light guide plate is connected to the cover body via the attachment surface and light from a light source is transmitted through the light input surface and output from the light output surface.
    Type: Grant
    Filed: June 22, 2017
    Date of Patent: January 8, 2019
    Assignee: ASUSTEK COMPUTER INC.
    Inventors: Wei-Hsiang Tang, Lian-Tien Ke, Chung-Jen Chung, Sheng-Chieh Huang, Tzu-Jen Mao
  • Patent number: 10162097
    Abstract: An optical system for influencing a light has a first optical element (1), by means of which a plane (E) is defined, wherein the first optical element (1) has a lateral edge region (11) designed for the entry of the light, and a second optical element (2), wherein the second optical element (2) is arranged parallel to the first optical element (1) and has a light outlet region (21) for the exiting of the light. The lateral edge region (11) of the first optical element (1) is designed to reduce the glare of or bundle the light in the plane (E), and the second optical element (2) has a elongate lens element (3), which extends along a longitudinal axis (L) and is designed to reduce the glare of or bundle the light in an additional plan (E?), which is oriented at least substantially perpendicularly to the plane (E) mentioned first.
    Type: Grant
    Filed: April 14, 2016
    Date of Patent: December 25, 2018
    Assignee: ZUMTOBEL LIGHTING GMBH
    Inventor: Andreas Machate
  • Patent number: 10146004
    Abstract: Systems and methods for increasing dynamic contrast in a liquid crystal display (LCD) may include a segmented backlight that may include one or more segments and one or more sets of light emitting diodes (LEDs). Each set of LEDs may be configured to illuminate a corresponding segment and each segment may include a notch(es) configured as a light barrier to reduce light leakage to non-adjacent segments. The notch(es) may be of variable length, depth, and width and may be three-dimensional, having a width the varies along the depth and length of the notch and a depth that varies along the width and length of the notch. In some embodiments, the notch(es) may be reflective, some degree of opaque, and/or blackened.
    Type: Grant
    Filed: January 16, 2018
    Date of Patent: December 4, 2018
    Assignee: zSpace, Inc.
    Inventors: Thanh-Son Nguyen, Hsienhui Cheng
  • Patent number: 10147569
    Abstract: Systems and methods for a keyboard backlight module are described. In some embodiments, a keyboard backlight module may include: a Light Guide Plate (LGP), a reflector coupled to the LGP, and a light bar at least partially sandwiched between the LGP and the reflector.
    Type: Grant
    Filed: September 11, 2017
    Date of Patent: December 4, 2018
    Assignee: Dell Products, L.P.
    Inventors: Wen-Pin Huang, Erh-Chieh Chang, Chih-Hao Chen
  • Patent number: 10139556
    Abstract: A backlight structure includes a frame body, a light guide plate, a first optical film, a second optical film, and a fixed member. The frame body has a first frame edge and a second frame edge opposite thereto. The light guide plate is disposed in the frame body and has a first and second short border corresponding respectively to the first frame edge and the second frame edge. The light guide plate has a protrusion protruding from an upper surface of the light guide plate and being adjacent to the second short border. The optical films are disposed over the light guide plate and include a first and second short-edge portion disposed respectively over the first short border and the second short border. The second short-edge portion has a notch matching the protrusion. The fixed member fixes the frame body and the optical films.
    Type: Grant
    Filed: December 6, 2017
    Date of Patent: November 27, 2018
    Assignee: CHUNGHWA PICTURE TUBES, LTD.
    Inventors: Pin-Chu Chen, Lun-Wei Kang
  • Patent number: 10132985
    Abstract: A reflection structure, a backlight module and a display device, the backlight module comprises a light source and a back plate and the light source is disposed on a side edge of the back plate, the reflection structure comprises: a first reflection plate disposed on the back plate, an end close to the light source of which can extend freely; and at least one second reflection plate disposed on an edge of the first reflection plate, wherein a first end of the second reflection plate overlaps the first reflection plate, a second end of the second reflection plate extends toward the side edge of the back plate, and at least one of the first end and the second end of the second reflection plate can extend freely.
    Type: Grant
    Filed: June 15, 2015
    Date of Patent: November 20, 2018
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Jian Xu, Yongda Ma, Xinyin Wu
  • Patent number: 10128420
    Abstract: The present disclosure discloses an LED package structure and a chip-scale light emitting unit. The chip-scale light emitting unit includes an LED chip, a phosphor sheet, and at least one light guiding group. The phosphor sheet covers entirely a top surface of the LED chip. The phosphor sheet has a light emitting surface arranged away from the LED chip, and the light emitting surface has a central region and a ring-shaped region surrounding the central region. The light guiding group is disposed on the ring-shaped region and covers at least 60% of an area of the ring-shaped region of the phosphor sheet, and the central region is not covered by the light guiding group. The light guiding group includes a plurality of light guiding micro-structures.
    Type: Grant
    Filed: December 29, 2017
    Date of Patent: November 13, 2018
    Assignee: LITE-ON TECHNOLOGY CORPORATION
    Inventors: Yu-Yu Chang, Yu-Kang Lu, Yung-Chang Jen
  • Patent number: 10114168
    Abstract: A light guide plate including a light guide main body and an index matching layer is provided. The light guide main body has a light-emitting surface and a bottom surface opposite to the light-emitting surface. The index matching layer is disposed adjacent to the bottom surface, wherein a refractive index of the light guide main body is n1, and a refractive index of the index matching layer is n2. 1.07*n2?n1?1.7*n2, and 0.1?(n1?n2)?0.7. A thickness of the index matching layer is larger than 500 nm. A backlight module and a display apparatus are also provided.
    Type: Grant
    Filed: March 24, 2017
    Date of Patent: October 30, 2018
    Assignee: ChengFeng Optronics Corporation
    Inventor: Ching-Fang Wong
  • Patent number: 10094969
    Abstract: An illumination device includes a plurality of light-emitting elements (LEEs); a light guide extending in a forward direction from a first end to a second end to receive at the first end light emitted by the LEEs and to guide the received light to the second end; an optical extractor optically coupled to the second end to receive the guided light, the optical extractor including a redirecting surface to reflect a first portion of the guided light, the reflected light being output by the optical extractor in a backward angular range, and the redirecting surface having one or more transmissive portions to transmit a second portion of the guided light in the forward direction; and one or more optical elements optically coupled to the transmissive portions, the optical elements to modify the light transmitted through the transmissive portions and to output the modified light in a forward angular range.
    Type: Grant
    Filed: May 25, 2017
    Date of Patent: October 9, 2018
    Assignee: Quarkstar LLC
    Inventors: Allan Brent York, Hans Peter Stormberg, Louis Lerman, Ferdinand Schinagl, Wilson Dau
  • Patent number: 10067284
    Abstract: A lighting fixture includes a first end plate and a second end plate that are coupled to and disposed on opposite sides of a reflector panel. Further, the lighting fixture includes a pair of elongated heat sinks that are coupled to the first end plate and the second end plate on opposite latitudinal ends of the pair of elongated heat sinks. Each elongated heat sink retains a longitudinal edge of a light guide and/or a plurality of LEDs directed towards the longitudinal edge. Further, the lighting fixture includes an optical device that is removably coupled to the lighting fixture such that the first end plate, the second end plate, and the pair of elongated heat sinks retain and overlap a perimeter of an optical device to prevent light leakage. The light guide is oriented horizontally and the optical device is oriented to receive light exiting the light guide.
    Type: Grant
    Filed: April 21, 2016
    Date of Patent: September 4, 2018
    Assignee: Cooper Technologies Company
    Inventors: Eric DiFelice, Patrick Neal Walker
  • Patent number: 10048432
    Abstract: A backlight module includes a light guide plate that includes a light incident surface including a first light incident section and a second light incident section, a light emission surface, and a first reflection surface defining a first acute angle with respect to the first reflection surface; a light bar, which includes first and second light sources respectively corresponding to the first and second light incident section such that light from the first and second light sources is allowed to enter the light guide plate to be selectively reflected by the first reflection surface and emit outward from the light emission surface; and a control circuit, which is electrically connected to the first light source and the second light source for controlling the first light source and the second light source. Also provided is a liquid crystal display that includes the backlight module and may achieve sectionized displaying.
    Type: Grant
    Filed: May 11, 2016
    Date of Patent: August 14, 2018
    Assignee: Wuhan China Star Optoelectronics Technology Co., Ltd
    Inventors: Qian Chen, Shih-Hsiang Chen
  • Patent number: 10041648
    Abstract: There are provided a light emitting unit using a wavelength conversion member which may be put to practical use, and a display and a lighting apparatus which include the light emitting unit. The light emitting unit includes: a light source; an optical part including a light incident surface, the light incident surface facing the light source; a wavelength conversion member provided between the light source and the light incident surface; and a holding member holding the wavelength conversion member at a position between the light source and the light incident surface of the optical part.
    Type: Grant
    Filed: April 4, 2013
    Date of Patent: August 7, 2018
    Assignee: Sony Corporation
    Inventor: Tomoharu Nakamura
  • Patent number: 10042110
    Abstract: A liquid crystal display includes a display panel having a lower substrate, an upper substrate disposed opposite to the lower substrate, and a liquid crystal layer disposed between the lower and upper substrates, a light source which emits light, a glass light guide plate which diffuses the light from the light source to the display panel, and a first bonding member which bonds the lower substrate to the glass light guide plate.
    Type: Grant
    Filed: July 7, 2015
    Date of Patent: August 7, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Se-Ki Park
  • Patent number: 10042102
    Abstract: A display module including a display panel and a backlight module disposed on a side of the display panel is provided. The backlight module includes a light guide, a light emitting diode, and a first optical film. The light emitting diode has a light emitting surface adjacent to the light guide. The first optical film is located between the light guide and the display panel. The first optical film includes a plurality of first prisms extending along a first direction. The first prisms corresponding to the light emitting surface form a main portion and a peripheral portion located outside the main portion. The main portion has a first height larger than a second height of the peripheral portion.
    Type: Grant
    Filed: July 22, 2016
    Date of Patent: August 7, 2018
    Assignee: INNOLUX CORPORATION
    Inventors: Bo-Tsuen Chen, Hsia-Ching Chu, Kuei-Ling Liu, Kuo-Chang Su
  • Patent number: 10042112
    Abstract: A display device includes a display housing and plural display-light-emitting devices. At least one of the plural display-light-emitting devices includes a light guide member, a holding member, and a light source. The light guide member includes a light incident portion, a light exit portion, and a reflecting portion. The light guide member causes light incident upon the light incident portion to be reflected by the reflecting portion so as to guide the light to the light exit portion. The holding member has an opening so as to house the light guide member, includes an elastically deformable holding piece, and holds the light guide member by using the holding piece. The light source is provided at a portion facing the light incident portion. The holding member has a cut that allows the holding piece to be elastically deformed.
    Type: Grant
    Filed: September 21, 2017
    Date of Patent: August 7, 2018
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Akio Fukuyama, Masahiko Nishimoto
  • Patent number: 10026379
    Abstract: A display device includes a display panel which displays an image with light, the display panel including a first substrate, a second substrate facing the first substrate, and an image display layer disposed between the first and second substrates; a backlight unit which generates and provides the light to the display panel; and a bottom chassis facing the first substrate to dispose the second substrate therebetween and to define an inner space with the first substrate. The image display layer, the second substrate, and the backlight unit are accommodated in the inner space defined by the first substrate and the bottom chassis.
    Type: Grant
    Filed: March 30, 2016
    Date of Patent: July 17, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Luly Lee, Myoung-seok Son, Donghyeon Lee
  • Patent number: 10012786
    Abstract: A backlight module includes a lamp set, a light guiding plate, a diffuser, a top prism sheet, and a down prism sheet. The diffuser includes a first end and a second end opposite to each other, the first end of the diffuser is closer to the lamp set than the second end, and the diffuser includes a first end and a second end opposite to each other. The diffuser includes the overlapped portion stacked with the top/down prism sheets and the extended portion extending from the overlapped portion. On the first end of the diffuser, the light beams emitted by the light guiding plate may be processed by the first extended portion, instead of being emitted out directly. This can avoid the bright lines occurred by the backlit so as to reduce the optical leakage. In addition, a display device is also disclosed.
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: July 3, 2018
    Assignee: Wuhan China Star Optoelectronics Technology Co., Ltd
    Inventors: Qian Chen, Zhongjie Liu, Bin Xiong
  • Patent number: 10012788
    Abstract: A display device includes a display panel, a light guide plate, a first light source and a second light source. The display panel is provided with a plurality of pixel units arranged in an array, the light guide plate includes a first reflection structure and a second reflection structure. The first reflection structure reflects light emitted from the first light source to the pixel units of the display unit and the light is guided to a first view side after passing through the display panel. The second reflection structure reflects light emitted from the second light source to the pixel units of the display panel and the light is guided to a second view side after passing through the display panel. The above display panel is capable of achieving naked eye dual vision display without wearing dedicated glasses.
    Type: Grant
    Filed: October 1, 2014
    Date of Patent: July 3, 2018
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Yangbing Yu, Weihao Hu, Daekeun Yoon, Yanping Liao, Xibin Shao, Rui Guo, Weijie Zhao
  • Patent number: 9995869
    Abstract: A backlight unit includes a light conversion member; a light guide plate including a light exit surface, a rear surface facing the light exiting surface, and connection surfaces including a first surface and a second surface facing each other to connect the light exit surface and the rear surface; a reflective member; and a light source emitting a first color light incident to the first surface and a portion of the first color light reaches the second surface on which the reflective member is disposed to specularly reflect the portion of the first color light. The light conversion member is disposed on the light exit surface, receives the first color light from the light guide plate, and emits a second color light different from the first color light.
    Type: Grant
    Filed: June 12, 2015
    Date of Patent: June 12, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Dong-Yeol Yeom, Youngjun Choi, Jinsook Bang
  • Patent number: 9964696
    Abstract: A lighting module comprises: a light guide plate comprising a top surface and a bottom surface, wherein the light guide plate is configured to emit a first light upward from the top surface and a second light downward from the bottom surface; a first case covering an one side of the light guide plate; a second case covering an other side of the light guide plate; a first light source which is disposed in the first case and is configured to emit light to the one side of the light guide plate; and a second light source which is disposed in the second case and is configured to emit light to the other side of the light guide plate.
    Type: Grant
    Filed: April 14, 2015
    Date of Patent: May 8, 2018
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Han Gyoul Kim, Young Kuk Kwak, Sang Jun Hong, Young Sik Kim
  • Patent number: 9933133
    Abstract: A light adjusting sheet includes a base and a first light adjusting structure layer. The base includes a first surface and a second surface opposite to the first surface. The first light adjusting structure layer is disposed on the first surface of the base, and the first light adjusting structure layer includes a plurality of light adjusting structures. Each light adjusting structure includes a major axis, a minor axis and a thickness, wherein the major axis of the light adjusting structure is in parallel with an extending direction. A ratio of a length of the minor axis to a length of the major axis is between 0.093 and 0.6, and the thickness is between 2 ?m to 6 ?m. A backlight module using the light adjusting sheet can achieve high brightness and large viewing angle.
    Type: Grant
    Filed: September 18, 2014
    Date of Patent: April 3, 2018
    Assignee: CORETRONIC CORPORATION
    Inventors: Chun-Yu Liao, Chao-Hung Weng, Min-Yi Hsu, Ming-Dah Liu
  • Patent number: 9933556
    Abstract: A backlight device includes a light guide plate on which a plurality of different light exiting patterns are formed and a display device. According to the backlight device and the display device, positions at which light is extracted on the light guide plate are changed, and thus, a 3-dimensional image of a high resolution may be provided.
    Type: Grant
    Filed: April 20, 2016
    Date of Patent: April 3, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Katsumi Minami
  • Patent number: 9927569
    Abstract: A display device includes a display panel receiving light and displaying an image, a light guide plate guiding the light to the display panel, a printed circuit board disposed adjacent to one side of the light guide plate and including first and second areas alternately defined therein, light sources mounted on the printed circuit board to correspond to the first area and to supply the light to the light guide plate, a first barrier wall disposed on the printed circuit board and extending in a direction in which the light sources are arranged, and a second barrier wall facing the first barrier wall such that the light sources are disposed between the first and second barrier walls, the second barrier wall disposed on the printed circuit board, and extending in the direction.
    Type: Grant
    Filed: October 14, 2015
    Date of Patent: March 27, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Youngchun Kim, Kyung-min Kim, Junghoon Shin, Byoungdae Ye
  • Patent number: 9891367
    Abstract: A backlight unit includes: a lower case including a bottom portion and a side portion on an edge of the bottom portion, a light guide plate accommodated in the lower case, and a light source module including a circuit board between the light guide plate and the side portion of the lower case and a light source on the circuit board, where the light guide plate includes a first light collecting pattern on a lower surface of the light guide plate, and a second light collecting pattern on the lower surface of the light guide plate and between the light source module and the first light collecting pattern.
    Type: Grant
    Filed: November 5, 2015
    Date of Patent: February 13, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dawoon Kim, Donghoon Kim, Seunghwan Chung
  • Patent number: 9864124
    Abstract: A light generation member includes a light source which includes light source units which generate a first light, a light conversion member which converts the first light to a second light, and a light diffusion member which is elongated in a first direction, in which is defined first grooves respectively corresponding to the light source units, the light diffusion member diffusing the first light generated by the light source unites and providing the diffused first light to the light conversion member. The light diffusion member is between the light conversion member and the light source in a second direction crossing the first direction, and the first grooves defined in the light diffusion member are each elongated in a third direction substantially perpendicular to the first and second directions.
    Type: Grant
    Filed: April 10, 2015
    Date of Patent: January 9, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: HanMoe Cha, Sanghyuck Yoon, Seung-Hwa Ha
  • Patent number: 9857042
    Abstract: A light source module includes a frame having a plurality of mounting surfaces at different levels and side surfaces respectively connected to the plurality of mounting surfaces; a plurality of heat dissipaters respectively disposed on the plurality of mounting surfaces and extending to cover a side surface of the frame; and a light source including a plurality of light emitting devices respectively disposed on the plurality of heat dissipaters and respectively positioned above the plurality of mounting surfaces.
    Type: Grant
    Filed: February 29, 2016
    Date of Patent: January 2, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Jin Kwan Song
  • Patent number: 9841550
    Abstract: A backlight module and a display device are disclosed. The backlight module comprises a lamp group; at least one prism sheet having a first edge near a side of the lamp group; a light shielding sheet having an inner edge corresponding to the side of the lamp group for defining a light emitting region of the backlight module. A distance between the first edge of the prism sheet and the lamp group is greater than or equal to a distance between the inner edge of the light shielding sheet and the lamp group. A light leakage in front of the lamps is improved effectively by increasing the distance between the prism sheet and lamp group, so that light intensity of light emitted from the lamp group is reduced upon reaching the prism sheet.
    Type: Grant
    Filed: July 16, 2015
    Date of Patent: December 12, 2017
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE CHATANI ELECTRICS CO., LTD.
    Inventor: Tianlong Li
  • Patent number: 9817171
    Abstract: A light guide plate includes a plate body and a wedge-shaped body extended upward along a terminal of the plate body. A top surface of the plate body is connected smoothly with an inclined surface of the wedge-shaped body. The inclined surface is provided with multiple first inclined V-shaped structures arranged at intervals, and the top surface is provided with multiple first vertical V-shaped structures. The present invention also provides a backlight module having the light guide plate. When a light source is right opposite to a first spaced region (or a second spaced region) corresponding to and located between two first inclined V-shaped structures (or two second inclined V-shaped structures), lights emitted from the light source can be uniformed by the first inclined V-shaped structure and the second inclined V-shape structure in order to eliminate an uneven light and dark phenomenon generated on the inclined surface.
    Type: Grant
    Filed: August 13, 2015
    Date of Patent: November 14, 2017
    Assignee: Wuhan China Star Optoelectronics Technology Co., Ltd
    Inventor: Yanxue Zhang
  • Patent number: 9784900
    Abstract: According to one embodiment, an illumination device including a light source unit including a light-emitting element having a light-emitting surface, a reflective surface formed around the light-emitting surface and having higher optical reflectivity than the light-emitting surface, a wavelength conversion member which converts a wavelength of emitted light from the light-emitting surface, an optical member located between the light source unit and the wavelength conversion member and including a light path adjustment mechanism which guides, to the reflective surface, light returned from the wavelength conversion member to the light-emitting surface, and a lightguide opposed to the wavelength conversion member.
    Type: Grant
    Filed: July 22, 2016
    Date of Patent: October 10, 2017
    Assignee: Japan Display Inc.
    Inventors: Hirohisa Miki, Shigesumi Araki
  • Patent number: 9766386
    Abstract: Disclosed are an optical member, a display device having the same, and a method of fabricating the same. The optical member includes a receiving part having an empty space therein, a host in the receiving part, a plurality of wavelength conversion particles in the host, a sealing part in the receiving part, and a pre-treatment layer between the sealing part and an inner surface of the receiving part.
    Type: Grant
    Filed: June 12, 2012
    Date of Patent: September 19, 2017
    Assignee: LG INNOTEK CO., LTD.
    Inventor: Seung Ryong Park
  • Patent number: 9726811
    Abstract: Provided is a circuit board including: a support substrate; a plurality of light emitting devices mounted on the support substrate; and a device protection portion surrounding one of the light emitting devices, or three or more surfaces of the plurality of light emitting devices.
    Type: Grant
    Filed: May 29, 2014
    Date of Patent: August 8, 2017
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Se Woong Na, Min Jae Kim, Bi Yi Kim, Hyun Gyu Park, In Hee Cho, Man Hue Choi, Seung Kwon Hong
  • Patent number: 9627654
    Abstract: An OLED display includes a first substrate, a first electrode on the first substrate, a pixel defining layer having a first aperture exposing the first electrode, an organic light emitting layer on the first electrode, a second electrode on the organic light emitting layer, a second substrate disposed to face the first substrate, a black matrix disposed on the second substrate and having a second aperture, and a lens disposed to cover at least a part of the second aperture and protruding toward the first substrate.
    Type: Grant
    Filed: June 11, 2015
    Date of Patent: April 18, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hong Shik Shim, Chul Ho Jeong, Jae Ik Lim
  • Patent number: 9612386
    Abstract: A luminous glazing unit includes a glass substrate, an additional element that is tinted an optical isolator between the glass substrate and the additional element, a light source, optically coupled to the glass substrate, and a light-extracting device associated with the glass substrate. The optical isolator includes a low-index film, made of fluoropolymer-based material which: has a refractive index n2 at 550 nm such that n1-n2 is at least 0.08, has a thickness e2 of at least 600 nm, is in optical contact with the first main face by a first lamination interlayer, based on a thermoplastic material.
    Type: Grant
    Filed: February 9, 2015
    Date of Patent: April 4, 2017
    Assignee: SAINT-GOBAIN GLASS FRANCE
    Inventors: Matthieu Berard, Pierrick Guiset, Maud Sarrant-Foresti, Charles Leyder
  • Patent number: 9588272
    Abstract: A backlight device includes LEDs, a light guide plate, an LED board, and a light blocking portion. The light guide plate includes a side surface configured as a light entrance surface through which light from the LEDs enters and a plate surface configured as a light exit surface through which light exits the light guide plate. The LED board on which the LEDs are mounted and at least a portion of which is a light guide plate overlapping portion is on a light exit surface side. The light guide plate overlapping portion overlaps a light entering edge portion that is an edge portion of the light guide plate close to the light entrance surface. The light blocking portion is at the light guide plate overlapping portion of the LED board and between the light guide plate overlapping portion and the light entering edge portion of the light guide plate.
    Type: Grant
    Filed: February 25, 2014
    Date of Patent: March 7, 2017
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Masakazu Komano, Katsutoshi Kikuchi, Kazunori Minoura
  • Patent number: 9523810
    Abstract: In an illumination device of the invention, as an arrangement interval of light deflection elements in a first direction discontinuously varies, an arrangement interval in a first direction becomes small with increased distance from an incidence face, where one of regions adjacent to each other which is close to the incidence face is referred to as a first region, the other of the regions which is away from the incidence face is referred to as a second region, as the arrangement interval of the light deflection elements in a second direction discontinuously varies at a boundary between the first region and the second region, the arrangement interval of part of the first region which is closest to the incidence face is smaller than the arrangement interval of part of the second region which is closest to the boundary.
    Type: Grant
    Filed: March 28, 2014
    Date of Patent: December 20, 2016
    Assignee: TOPPAN PRINTING CO., LTD.
    Inventors: Tomohiro Nakagome, Kazuki Kimura
  • Patent number: 9513427
    Abstract: A display device includes a display panel, a backlight unit outputting light to the display panel, and an optical member refracting or reflecting the light output from the backlight unit and providing the display panel with the light. The backlight unit includes a light source emitting the light, a light guide plate scattering the light emitted from the light source and irradiating the scattered light to a front surface of the backlight unit, a reflective sheet reflecting the light, which is irradiated to a rear surface of the light guide plate, to the light guide plate, a quantum dot sheet for converting the light, which is irradiated to the front surface of the light guide plate, into a white light, and a light-converting material provided on an edge portion of the reflective sheet to convert the light into the white light.
    Type: Grant
    Filed: June 11, 2015
    Date of Patent: December 6, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Byoung-Jin Cho, Dae-Hee Lee, Kye Hoon Lee, Nae-Won Jang
  • Patent number: 9477030
    Abstract: A backlight unit and a display device are provided. The backlight unit includes: a circuit board (20); at least one light source (21) provided on the circuit board (20); a light guiding plate (112) comprising a light incident side, which is configured for receiving light emitted by the at least one light source, and a light exit side; and a diffusion plate (114) provided on the light exit side of the light guiding plate (112). The diffusion plate (114) includes a diffusion-plate body (141) and at least one diffusion-plate extension part (142) that is located on at least one side of the diffusion-plate body (141) and connected to the diffusion-plate body (141). The diffusion-plate extension part (142) is located between the circuit board (20) and the light guiding plate (112). A position of the diffusion-plate extension part (142) corresponds to a position of the light source (121).
    Type: Grant
    Filed: June 27, 2014
    Date of Patent: October 25, 2016
    Assignees: BOE Technology Group Co., Ltd., Beijing BOE CHATANI Electronics Co., Ltd.
    Inventors: Qiaowei Chong, Dongsheng Yang
  • Patent number: 9377652
    Abstract: A liquid crystal display device includes a liquid crystal panel; a backlight unit disposed under the liquid crystal panel and including a light guide plate and a light emitting diode (LED) assembly at a side of the light guide plate; a main frame surrounding a side of the backlight unit and having a light-diffusion property.
    Type: Grant
    Filed: September 24, 2013
    Date of Patent: June 28, 2016
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Eun-Hee Choi, Jin-Seo Park
  • Patent number: 9366797
    Abstract: The present disclosure relates to the technical file of display, in particular to a side type backlight module, a method for producing the same and a display apparatus. The backlight module comprises: a LED source; a light guide plate; a wedge-shaped light guide portion located between the LED source and the light guide plate; two reflectors having reflective faces located on a top and a bottom of the wedge-shaped light guide portion and inclined with respect to an upper surface or a lower surface of the light guide plate, for adjusting the light emitting angle of the LED source; and a silicon gel part located between the LED source and the wedge-shaped light guide portion. With the inclined reflectors arranged on the top and the bottom of the silicon gel part, the present disclosure may avoid the light leak, improve the optical efficiency and suppress the light leak and hot spots effects of the light incident end of the light guide plate.
    Type: Grant
    Filed: June 26, 2014
    Date of Patent: June 14, 2016
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Shang Wang
  • Patent number: 9360615
    Abstract: The subject matter disclosed herein relates to an optical device comprising: a light guide film to transport light rays via total internal reflection; a first optical layer covering at least a portion of a first side of the light guide film, the first optical layer to receive an exiting portion of the light rays; a second optical layer covering at least a portion of the first optical layer; and a grating pattern located at an interface between the first optical layer and the second optical layer to out-couple light rays travelling in the light guide film, wherein the grating pattern is configured so that the exiting portion of the light rays transmit through the grating pattern twice before being total internally reflected by the grating pattern.
    Type: Grant
    Filed: March 27, 2015
    Date of Patent: June 7, 2016
    Assignee: Modilis Holdings LLC
    Inventor: Juho Ilkka Jalava
  • Patent number: 9354378
    Abstract: An illuminating device includes a light source which outputs light, a light guide member having an incident surface on which the light from the light source is incident, an output surface through which the light is output from the light guide member, and a light deflection surface on which light deflection elements are formed such that the light is guided toward the output surface, and an isotropic light diffusion member positioned over the output surface of the light guide member. The light guide member has the incident surface extended in an X direction and includes a unit lens formed on the output surface and extended in a Y direction orthogonal to the X direction. A light-deflection element density D representing a number of the light deflection elements per unit area increases as the light deflection elements are positioned farther away from the incident surface.
    Type: Grant
    Filed: August 13, 2014
    Date of Patent: May 31, 2016
    Assignee: TOPPAN PRINTING CO., LTD.
    Inventors: Yu Ookubo, Tomohiro Nakagome
  • Patent number: 9341387
    Abstract: An illuminating airflow panel assembly is configured to provide illumination and allow air to flow therethrough. The illuminating airflow panel assembly may include a mounting bracket configured to secure the illuminating airflow panel assembly to a structure, and a main body connected to the mounting bracket. The main body may include opposed first and second planar surfaces and an outer peripheral edge. The main body may also include a plurality of airflow passages that extend from the first planar surface to the second planar surface. The airflow passages are configured to allow air to pass therethrough toward a target site. An illuminating member may be positioned around the outer peripheral edge of the main body. The illuminating member is configured to direct light toward the target site.
    Type: Grant
    Filed: May 30, 2013
    Date of Patent: May 17, 2016
    Assignee: Nortek Air Solutions, LLC
    Inventors: Zareer Cursetjee, David Baugh
  • Patent number: 9199842
    Abstract: Light-emitting quantum dot films, quantum dot lighting devices, and quantum dot-based backlight units are provided. Related compositions, components, and methods are also described. Improved quantum dot encapsulation and matrix materials are provided. Quantum dot films with protective barriers are described. High-efficiency, high brightness, and high-color purity quantum dot-based lighting devices are also included, as well as methods for improving efficiency and optical characteristics in quantum dot-based lighting devices.
    Type: Grant
    Filed: November 2, 2011
    Date of Patent: December 1, 2015
    Assignee: Nanosys, Inc.
    Inventors: Robert S. Dubrow, William P. Freeman, Ernest Lee, Paul Furuta
  • Patent number: 9162405
    Abstract: A transfer molding method includes an insertion step of inserting a resin sheet between a first die and a second die, which are disposed opposite each other, a sandwiching step of sandwiching the resin sheet between the first and second dies while a transfer surface of a transfer member is brought into contact with at least one of surfaces of the resin sheet, and a transfer molding step of heating at least one of the first and second dies to melt at least a surface portion of the resin sheet with which the transfer surface of the transfer member is brought into contact, and exhausting residual air remaining in a recess through a groove portion connected to the recess when a thick portion is formed by the recess formed in the transfer surface.
    Type: Grant
    Filed: February 8, 2013
    Date of Patent: October 20, 2015
    Assignee: OMRON Corporation
    Inventors: Koichi Takemura, Tomofusa Shibata, Yoshihisa Yamanaka, Kazutaka Kaneko, Yuzuru Fujie, Naoki Hashimoto, Taichi Suzuki, Masayuki Kojima
  • Patent number: 9141231
    Abstract: An optical touch device includes an indication plane, an image sensing unit, a light emitting unit and a frame. A sensing region is defined on the indication plane. The image sensing unit is disposed at a corner of the indication plane. The light emitting unit is disposed beside the image sensing unit and used for emitting light to the sensing region. The frame is disposed at one side of the indication plane. The frame includes two first inclined surfaces connected to each other and facing the sensing region.
    Type: Grant
    Filed: April 29, 2012
    Date of Patent: September 22, 2015
    Assignee: Wistron Corporation
    Inventors: Po-Liang Huang, Shih-Che Chien
  • Patent number: 9134475
    Abstract: A front light (1) includes a light source (8), a light guide plate (9), and a plurality of dots (4) that are provided on a surface of the light guide plate (9), which surface faces a light exit surface of the light guide plate (9). Each of the plurality of dots (4) includes (i) a light reflective layer (2) for reflecting light toward the light guide plate (9), and (ii) a dark layer (3) for absorbing light, the dark layer completely covering the light reflective layer (2) so as to be in contact with the light guide plate (9) without any gap between the light guide plate (9) and the dark layer (3).
    Type: Grant
    Filed: June 27, 2012
    Date of Patent: September 15, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hisashi Watanabe, Tomoko Teranishi, Toshiki Matsuoka, Takahiro Nakahara, Takuma Tomotoshi, Eiji Satoh, Kohzoh Nakamura, Yohzoh Narutaki
  • Patent number: 9131099
    Abstract: A configuration is adopted in which an image sensor unit includes: a sensor substrate on which a plurality of photoelectric conversion elements are mounted; a light source that includes light-emitting elements and is for illuminating a document; a light guide that guides light from the light source from one end face in a longitudinal direction and linearly illuminates the document; a rod lens array imaging reflected light from the document on the sensor substrate; and a frame attaching each of these, and in which the frame detachably includes a spacer provided in proximity to the light source, and the spacer includes a light shield roof elongated so as to cover the light source and the end of the light guide.
    Type: Grant
    Filed: October 9, 2014
    Date of Patent: September 8, 2015
    Assignee: CANON COMPONENTS, INC.
    Inventors: Hideo Kiyota, Hidemasa Yoshida
  • Patent number: 9097824
    Abstract: A light mixing module (3) for receiving light from a first set of light sources (4) and a second set of light sources (5), said light mixing module comprising: —an annular light guiding element (11), said annular light guiding element having an inner edge (13), a peripheral edge (12), a first intermediate surface (15) extending between said inner and peripheral edges and arranged to face said light sources, and a second intermediate surface (16) extending between said inner and peripheral edges opposite said first intermediate surface, wherein said inner edge (13) defines a cavity (18) with an opening arranged to face said light sources, wherein said opening is arranged to receive light from said first set of light sources (4) and said first intermediate surface (15) is arranged to receive light from said second set of light sources (5); and —a first reflective surface (17) arranged to close said cavity in an end opposite said opening so as to form a first mixing chamber (18), wherein said annular light guidi
    Type: Grant
    Filed: March 10, 2011
    Date of Patent: August 4, 2015
    Assignee: Koninklijke Philips N.V.
    Inventors: Michel Cornelis Josephus Marie Vissenberg, Tim Dekker