Light Modifier For Edge Lit Light Source (incident Edge) Patents (Class 362/608)
  • Patent number: 10901133
    Abstract: An illuminating device includes light emitting elements extending in a lengthwise direction and a light guide plate having a first principal surface for emitting light from the light emitting elements and a second principal surface facing the first principal surface. The light guide plate has light guide regions corresponding to the light emitting elements. The light emitting elements overlap the light guide plate on a side of the second principal surface of the light guide plate in plan view. The side of the second principal surface of the light guide plate has first sectional surfaces, on which light originated from each of the light emitting elements is incident. The side of the second principal surface of the light guide plate has second sectional surfaces, each having a reflection surface for reflecting the light originated from each light emitting element toward the first sectional surface, corresponding to the light emitting elements.
    Type: Grant
    Filed: September 29, 2014
    Date of Patent: January 26, 2021
    Assignee: 138 East LCD Advancements Limited
    Inventor: Osamu Yokoyama
  • Patent number: 10884180
    Abstract: A light guide assembly comprises: a first light guide member; and a second light guide member stacked on the first light guide member. The light guide assembly has first and second light incident surfaces located on different sides, and a light emitting surface and a bottom surface which are oppositely disposed in a thickness direction, the first light incident surface and the bottom surface are located on the first light guide member, and the second light incident surface and the light emitting surface are located on the second light guide member, and the bottom surface is provided with first dots having a density increasing in a direction away from the first light incident surface, and the light emitting surface is provided with second dots having a density increasing in a direction away from the second light incident surface.
    Type: Grant
    Filed: August 16, 2018
    Date of Patent: January 5, 2021
    Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Heling Zhu, Junjie Ma, Yuanda Lu, Bo Han, Liang Gao, Lu Yu, Pengfei Cheng
  • Patent number: 10845647
    Abstract: A display device includes a backlight unit and a display panel disposed above the backlight unit, where the backlight unit includes a light guide plate, a housing which is disposed at one side of the light guide plate and accommodates a wavelength converting member, and a flexible glass film which covers one side of the housing, and a first laser welding part is disposed between the flexible glass film and the housing.
    Type: Grant
    Filed: July 23, 2018
    Date of Patent: November 24, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Woo Suk Seo, Sung Chul Kim, Won Jin Kim, Jung Hyun Kim, Seok Hyun Nam, Si Joon Song, Kwang Wook Choi
  • Patent number: 10760757
    Abstract: An Fr turn lamp that is a vehicle lamp includes a first light guide and a second light guide. The first light guide is disposed in front of a light source in the direction of an optical axis. The second light guide has a connection end connected to a vehicle width direction outer side surface of the first light guide and extends outward in the vehicle width direction from the connection end. The first light guide has a reflecting surface configured to reflect a part of incident light from the light source toward the connection end of the second light guide.
    Type: Grant
    Filed: April 3, 2019
    Date of Patent: September 1, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Shingo Tanoue
  • Patent number: 10746915
    Abstract: A backlight module includes a light guide plate and a plurality of light-emitting units. The plurality of light-emitting units emit light toward a light incident surface of the light guide plate. The plurality of light-emitting units are attached to the light incident surface of the light guide plate and arranged along a target direction in manner of spacing between two adjacent light-emitting units. A plurality of light-converging portions are arranged along the target direction in an end portion of the light guide plate where the light incident surface is located, and the plurality of light-converging portions are disposed at locations of the light guide each of which is corresponding to the spacing. The plurality of light-converging portions are configured to converge light incident into the light-converging portions through the light incident surface.
    Type: Grant
    Filed: February 27, 2019
    Date of Patent: August 18, 2020
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Lichuan Xiao
  • Patent number: 10670230
    Abstract: A wavelength conversion member having quantum dots is provided. The wavelength conversion member includes a quantum dot layer including quantum dots, and an organic film on a surface of the quantum dot layer. The quantum dot layer includes a first layer disposed on a first side of the wavelength conversion member that is closest to a light emitting device or on a light input surface side, and a second layer disposed on a second side of the wavelength conversion member that is farthest from the light emitting device or on a light output surface side. A light scattering agent is included in the first layer and the second layer. The quantum dots are not included in the first layer and are included in the second layer.
    Type: Grant
    Filed: August 29, 2019
    Date of Patent: June 2, 2020
    Assignee: NS MATERIALS INC.
    Inventors: Akiharu Miyanaga, Eiichi Kanaumi
  • Patent number: 10643552
    Abstract: A display screen adjustment method, applied in a display screen includes a display module. The display screen adjustment method includes steps of: displaying a preset picture in a display area of the display module; dividing the display area into a plurality of subareas; detecting whether a brightness of the display area is uniform; determining which subareas have higher brightness than the other subareas; and decreasing light transmittances of pixels in the subareas having higher brightness to offset additional brightness of the pixels that is caused by light leaking of the pixels. An electronic device is also provided.
    Type: Grant
    Filed: June 11, 2018
    Date of Patent: May 5, 2020
    Assignee: Chiun Mai Communication Systems, Inc.
    Inventor: Chen-Sheng Hsu
  • Patent number: 10634943
    Abstract: The present disclosure provides a display substrate and a manufacturing method thereof, and a display panel. The display substrate has a display area and a peripheral area surrounding the display area, wherein a plurality of force sensors is provided in the peripheral area and the plurality of force sensors is made of polysilicon material, in a direction perpendicular to the display substrate, a first layer is provided directly under a layer where the plurality of force sensors is located, and a second layer is provided directly above the layer where the plurality of force sensors is located, a Young's modulus of at least one of the first layer and the second layer is larger than a Young's modulus of silicon oxide. The technical solution of the present disclosure can improve the detection accuracy of the force sensor with respect to a force.
    Type: Grant
    Filed: March 13, 2018
    Date of Patent: April 28, 2020
    Assignee: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Feng Lu, Koji Shigamura
  • Patent number: 10598981
    Abstract: The present disclosure provides a display substrate and a manufacturing method thereof, and a display panel. The display substrate has a display area and a peripheral area surrounding the display area, wherein a plurality of force sensors is provided in the peripheral area and the plurality of force sensors is made of polysilicon material, in a direction perpendicular to the display substrate, a first layer is provided directly under a layer where the plurality of force sensors is located, and a second layer is provided directly above the layer where the plurality of force sensors is located, a Young's modulus of at least one of the first layer and the second layer is larger than a Young's modulus of silicon oxide. The technical solution of the present disclosure can improve the detection accuracy of the force sensor with respect to a force.
    Type: Grant
    Filed: March 13, 2018
    Date of Patent: March 24, 2020
    Assignee: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Feng Lu, Koji Shigamura
  • Patent number: 10551547
    Abstract: A troffer luminaire including (i) a light guide luminaire module having an optical extractor, and (ii) a reflector, where the reflector is configured to reflect light output by the optical extractor in a backward angular range toward a target surface in a forward angular range, and where a combination of the optical extractor and the first reflector is configured such that a ratio of maximum luminance to minimum luminance across the first reflector is less than a first predetermined ratio.
    Type: Grant
    Filed: November 6, 2015
    Date of Patent: February 4, 2020
    Assignee: Quarkstar LLC
    Inventors: Victor E. Isbrucker, Ingo Speier
  • Patent number: 10545278
    Abstract: An optical member includes a light guide plate in which light incident thereto is propagated, including: an emission surface through which propagated light exits the light guide plate, a light incident side surface through which the light is incident to the light guide plate, and an inclined edge surface connecting the emission and light incident side surfaces to each other; and a wavelength conversion layer to which exited light from the light guide plate is incident and which converts a wavelength of the exited light, disposed facing the emission surface of the light guide plate. The inclined edge surface and emission surfaces define a boundary therebetween, and a side surface of the wavelength conversion layer which is closest to the light incident side surface is further from the light incident side surface than the boundary between the inclined edge surface and the emission surface.
    Type: Grant
    Filed: September 10, 2018
    Date of Patent: January 28, 2020
    Assignee: SAMSUNG DISPLAY CO. LTD.
    Inventors: Sang Won Lee, Seong Yong Hwang, Hye Eun Park, Sung Kyu Shim
  • Patent number: 10506673
    Abstract: A back plate, a backlight module, a display device, and an assembly method of the backlight module are provided. The backlight module includes: a back plate, including a main body portion, the main body portion having a first main surface and a second main surface opposite to each other; and the main body portion being provided with a hollow structure; a light source, passing through the hollow structure from a second main surface side of the main body portion; a light guide plate, provided on the first main surface side of the main body portion of the back plate, wherein, the light-emitting portion of the light source includes a light emergent surface, and the light emergent surface faces a light incident surface of the light guide plate.
    Type: Grant
    Filed: January 25, 2017
    Date of Patent: December 10, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI BOE DISPLAY LIGHTING CO., LTD.
    Inventors: Yaling Kang, Xiaochu Zhang, Zuchuan Shi, Shuyong He, Bo Wu, Xiang Liu, Peina Wang
  • Patent number: 10451789
    Abstract: A liquid crystal display device and a backlight module are disclosed. The backlight module includes a first light-emitting element; a clamper, which is provided with a curved groove and used for accommodating the first light-emitting element; and a light guide plate that is arranged outside the clamper and provided with a curved end surface which faces the first light-emitting element. The curved end surface and the curved groove are aligned with each other. The liquid crystal display device includes the aforesaid backlight module. The cost of the backlight module is relatively low. A curved liquid crystal display device provided with the backlight module can have a good display effect.
    Type: Grant
    Filed: July 30, 2015
    Date of Patent: October 22, 2019
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventors: Yu Chun Hsiao, Shih Hsiang Chen, Chengwen Que, Dehua Li
  • Patent number: 10447987
    Abstract: Provided are a lighting apparatus that is capable of implementing various stereoscopic effects and a lamp for a vehicle including the lighting apparatus. A volumic type, a depth effect, and a stereoscopic effect of optical patterns emitted after an interaction of excited light of emission layers disposed in adjacent light source modules can be implemented so that various designs of three-dimensional (3D) light can be implemented.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: October 15, 2019
    Assignee: LG INNOTEK CO., LTD.
    Inventor: Dong Hyun Lee
  • Patent number: 10393939
    Abstract: A display apparatus includes: a display panel; a light source package configured to supply light; and a light guide plate configured to receive the light supplied by the light source package and guide the light to the display panel. The light source package includes: a light source configured to generate the light; a first reflector disposed around the light source; a light converter disposed between the light source and the light guide plate, the light converter being configured to convert properties of the light directed toward the light guide plate; and a second reflector protruding from the light converter toward the light source, the second reflector being configured to reflect the light generated by the light source toward the first reflector, and to reflect light reflected by the light converter toward the light guide plate.
    Type: Grant
    Filed: September 21, 2017
    Date of Patent: August 27, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Wook-Jae Jeon, Young Chol Lee, Nae-Won Jang, Seung Hun Chae, Jun Sung Choi
  • Patent number: 10393951
    Abstract: The present invention provides a backlight module, wherein the backlight module comprises a glue frame, a backlight source, a light guide plate, a quantum tube and an optical thin film, and the light guide plate comprises an incident surface and an illuminating surface, and the backlight source comprises a substrate and a plurality of lamp sources on the substrate aligned in a straight line, and the quantum tube comprises a mainbody and two bending sections at two ends of the mainbody, and the glue frame is arranged to surround the light guide plate and periphery of the optical thin film, and the quantum tube is installed on the substrate and arranged to be parallel with the plurality of lamp sources, and bending sections at the two ends of the mainbody are located at outer sides of the lamp sources at two ends of the plurality of the lamp sources.
    Type: Grant
    Filed: July 14, 2015
    Date of Patent: August 27, 2019
    Assignees: Shenzhen China Star Optoelectronics Technology Co., Ltd, Wuhan China Star Optoelectronics Technology Co., Ltd
    Inventor: Gege Zhou
  • Patent number: 10317604
    Abstract: A light-emitting diode (LED) lightbar includes a flexible print circuit, a plurality of LEDs arranged on the flexible print circuit, and a light guiding film arranged on the flexible print circuit. The light guiding film is arranged on two adjacent LEDs. The light guiding film includes an incident surface and an emitting surface. Two sides of the incident surface of the light guiding film are attached to emitting surfaces of the two adjacent LEDs. Compared with the related art, a light guiding film is arranged on emitting surfaces of any two neighboring LEDs in the present disclosure. Light beams emitted by the LEDs enter the light guiding film partially. The light guiding film reflects the partial light beams are transferred to the gap between the LEDs. Therefore, the hotspot phenomenon is well curbed.
    Type: Grant
    Filed: May 25, 2017
    Date of Patent: June 11, 2019
    Assignee: Wuhan China Star Optoelectronics Technology Co., Ltd
    Inventor: Chen Xie
  • Patent number: 10275102
    Abstract: Discussed is a display device in which a first pressure electrode configuring a pressure touch panel is adhered to a first polarizing film attached on a lower end of a panel. The display device includes a display panel displaying an image, a capacitive touch panel provided in the display panel and including a plurality of touch electrodes, a first polarizing film adhered to a first side surface of the display panel, a first pressure electrode part adhered to a first side surface of the first polarizing film and including a first pressure electrode, and a second pressure electrode part spaced apart from the first pressure electrode part and including a second pressure electrode facing the first pressure electrode.
    Type: Grant
    Filed: May 2, 2017
    Date of Patent: April 30, 2019
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Heungju Jo, JeongKweon Park, Chan Park, SangGul Lee, SangEun Han
  • Patent number: 10267974
    Abstract: A light guide plate, a backlight and a display device are provided. The light guide plate includes a light incident surface, and a light emergent surface intersecting with the light incident surface, the light emergent surface being provided with a blank region close to the light incident surface; the blank region is provided with a plurality of convex point structures thereon. The light guide plate can reduce a disadvantageous effect of an adhesive preparation structure on the backlight and improve a light utilization rate of the backlight.
    Type: Grant
    Filed: June 12, 2015
    Date of Patent: April 23, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BOE OPTICAL SCIENCE AND TECHNOLOGY CO., LTD.
    Inventor: Wenjun Li
  • Patent number: 10185070
    Abstract: According to one embodiment, a light source device includes a light source element including a first light emitting element which emits light of a first wavelength and a second light emitting element which emits light of a second wavelength, a first wavelength conversion material which is excited by the light from the first light emitting element to emit light of a third wavelength, and a second wavelength conversion material which is excited by the light from the second light emitting element to emit light of a fourth wavelength, wherein cyan light produced by the light emission of the first light emitting element and magenta light produced by the light emission of the second light emitting element are emitted from the same light emitting surface.
    Type: Grant
    Filed: October 3, 2016
    Date of Patent: January 22, 2019
    Assignee: Japan Display Inc.
    Inventors: Susumu Kimura, Tsutomu Harada, Akira Sakaigawa
  • Patent number: 10139554
    Abstract: A backlight module and a display device are provided. The backlight module includes a plastic frame and a light guiding plate provided within the plastic frame. For each non-incident side of two parallel non-incident sides of the plastic frame, a respective space-keeping structure is provided at an end of a side edge on the non-incident side, with the end of the side edge on the non-incident side being close to a side edge of an incident side; and a side of the space-keeping structure that is away from an end surface of the light guiding plate is sealed with a cover structure. The present arrangement can effectively reduce bright lines at side edges occurring in the backlight module, and thus improve image-display quality of the backlight module.
    Type: Grant
    Filed: November 11, 2015
    Date of Patent: November 27, 2018
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BOE OPTICAL SCIENCE AND TECHNOLOGY CO., LTD.
    Inventor: Wenjun Li
  • Patent number: 10114219
    Abstract: A backlight unit includes a housing having an opening in which an liquid crystal display device is disposed, a light source disposed inside the housing, and an optical member disposed inside the housing, turning a path of light from the light source toward the liquid crystal display device, and having a triangular prism portion made of a translucent material. The prism portion has one side wall serving as an entrance wall on which the light from the light source is incident, another side wall as an exit wall emitting light to the liquid crystal display device, and still another side wall as a reflecting wall reflecting the light incident on the entrance wall to the exit wall inside the prism portion.
    Type: Grant
    Filed: December 6, 2017
    Date of Patent: October 30, 2018
    Assignee: YAZAKI CORPORATION
    Inventors: Kenji Yagi, Hidetoshi Mukojima, Naohisa Murata, Naoto Tsubakihara
  • Patent number: 10114167
    Abstract: Provided is a thin light unit for a display device that includes, for example, a high refraction film including an inclined portion at a first side of the high refraction film and a flat portion extended from the inclined portion to a second side of the high refraction film; a second member on the inclined portion at the first side of the high refraction film and having a first width; a first member on the flat portion in a middle of the second side of the high refraction film and separated from the second member; a third member on the flat portion and having the first width; and a light source adjacent to the first member at a side of the flat portion.
    Type: Grant
    Filed: November 4, 2015
    Date of Patent: October 30, 2018
    Assignees: LG DISPLAY CO., LTD., COVESTRO DEUTSCHLAND AG
    Inventors: Hyungseok Bang, Seungman Ryu
  • Patent number: 10114164
    Abstract: An edge-type backlight source assembly includes at least one quantum bar (QD) tube bracket, at least one QD tube fixed within the QD tube bracket, a plurality of LED lamp bars, and a connector. The LED lamp bar includes a substrate and a plurality of LED lamps on the substrate, and the LED lamps emit blue light. The substrate is attached to a bottom of the QD tube bracket. The LED lamps are received within the QD tube bracket and are arranged to be opposite to the QD tube. The connector electrically connects with the adjacent two LED lamp bars and is fixed on a sidewall of the QD tube bracket. A backlight module is also disclosed. The connector, which is fixed on the sidewall of the QD tube bracket, electrically connects to the two adjacent LED lamps to ensure the wiring connection between the lamp bars.
    Type: Grant
    Filed: December 25, 2015
    Date of Patent: October 30, 2018
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventors: Yuchun Hsiao, Guofu Tang, Quan Li, Gang Yu, Taiyong Yin
  • Patent number: 10088624
    Abstract: To provide a thin liquid crystal display device featuring excellent color reproducibility. The liquid crystal display panel includes: a liquid crystal display panel outputting different colors on a per-pixel basis; and a backlight. The backlight includes: a light source; a light guide; a reflective sheet on a back side of the light guide; and a group of optical sheets including a wavelength converter and disposed between the liquid crystal display panel and the light guide. The wavelength converter has a structure where quantum dots are dispersed in a transparent medium. The wavelength converter is bonded to another optical medium by means of a diffusing adhesive. Nanoparticles for developing Rayleigh scattering are dispersed in the wavelength converter.
    Type: Grant
    Filed: January 31, 2017
    Date of Patent: October 2, 2018
    Assignee: Japan Display Inc.
    Inventors: Masaki Nishikawa, Tetsuya Ooshima, Yasuhisa Shiraishi, Masateru Morimoto
  • Patent number: 10078176
    Abstract: A planar illumination device includes: a frame including a side wall; a circuit board including a mounted portion arranged on the side wall, and a folded portion folded with respect to the mounted portion; a plurality of point light sources arranged on the mounted portion; a light guiding plate that includes an incoming surface facing the plurality of point light sources and that is accommodated in the frame; and a fixing nail that is formed in the light guiding plate, protrudes from the incoming surface towards a part of the mounted portion where the plurality of point light sources are not arranged and arranges the mounted portion on the side wall.
    Type: Grant
    Filed: February 3, 2016
    Date of Patent: September 18, 2018
    Assignee: MINEBEA CO., LTD.
    Inventors: Shohei Takada, Keito Azumi
  • Patent number: 10031272
    Abstract: A display apparatus includes a display panel and a backlight unit. The backlight unit includes a light source emitting a first color light, a light guide member, quantum dots, and a dichroic filter preventing the first color light from being leaked.
    Type: Grant
    Filed: June 23, 2015
    Date of Patent: July 24, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jae Sul An, Donghoon Kim
  • Patent number: 10026667
    Abstract: A method of manufacturing a light-emitting device that includes a circuit board with p- and n-electrodes formed on a surface of a substrate and a light-emitting element connected to the p- and n-electrodes of the circuit board via a conductor member. The method includes forming two protrusions facing each other on both sides of a gap between the p- and n-electrodes of the circuit board, and dispensing a underfill at a position on an opposite side to the light-emitting element with respect to the two protrusions, allowing the dispensed underfill to flow toward the light-emitting element by a capillary action through the gap between the p- and n-electrodes of the circuit board while contacting the protrusions, and filling, by the capillary action, a gap between the circuit board and the light-emitting element with the underfill reaching a bottom of the light-emitting element.
    Type: Grant
    Filed: June 14, 2017
    Date of Patent: July 17, 2018
    Assignee: TOYODA GOSEI CO., LTD.
    Inventor: Takashi Nonogawa
  • Patent number: 9989690
    Abstract: An electronic device includes a display frame, a light guide plate disposed within the display frame, and a light source disposed along an edge of the light guide plate. The light source is secured to the display frame. The electronic device further includes an enclosure in which the display frame and the light guide plate are disposed. The enclosure is configured to allow thermal expansion of the display frame and of the light guide plate. The light guide plate and the display frame have substantially similar coefficients of thermal expansion.
    Type: Grant
    Filed: July 14, 2017
    Date of Patent: June 5, 2018
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Tristan Thomas Trutna, Edward Francis Burress, Nigel Stuart Keam
  • Patent number: 9885818
    Abstract: A display device includes: a display panel which displays an image with light; a light source which generates and emits the light; a light guide plate which receives the light emitted from the light source on a first surface of the light guide plate and emits the received light through a second surface of the light guide plate different from the first surface; and a light converting unit between the light source and the light guide plate. The light converting unit includes: a phosphor which converts a first color of the light emitted from the light source to a second color different from the first color; a transparent base in which the phosphor is disposed; and a transparent film between the light source and the phosphor disposed in the transparent base, the transparent film being attached to a surface of the transparent base.
    Type: Grant
    Filed: March 25, 2016
    Date of Patent: February 6, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jooyoung Kim, Luly Lee
  • Patent number: 9882098
    Abstract: An embodiment provides a light-emitting device package comprising: a first lead frame; a second lead frame; a light-emitting device electrically connected to the first lead frame and the second lead frame; a molding unit arranged to surround the light-emitting device; and an oxynitride-based phosphor represented by chemical formula LXMYOaNbAcBd:zR (1?X?3, 3?Y?7, 0.001?Z?1.0, 0?a?5, 0.1?b?9, 0.001?c?0.3, 0.001?d?0.3), and the light-emitting device package of the present embodiment can implement a white color light having excellent luminance and color rendering index.
    Type: Grant
    Filed: March 3, 2015
    Date of Patent: January 30, 2018
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Ji Wook Moon, Bong Kul Min, Hyoung Jin Kim
  • Patent number: 9822940
    Abstract: A lighting system comprising a track having a first and a second rail, mutually extending equidistantly. Said first and second rail comprise a first respectively a second electrically conductive strip, mutually electrically isolated. A lighting module comprising a first and second electrical contact, which lighting module in mounted position rests by gravitational force on the first and second rail. When mounted the first and second electrical contact are in electrical contact with a respective one of the first and second electrically conductive strip. The lighting module is dismountable from the track by a single displacement of the lighting module in a direction against the direction of the gravitational force.
    Type: Grant
    Filed: March 5, 2014
    Date of Patent: November 21, 2017
    Assignee: PHILIPS LIGHTING HOLDING, B.V.
    Inventors: Anthonie Hendrik Bergman, Tim Dekker, Bram Knaapen, Theodorus Johannes Petrus Van Den Biggelaar
  • Patent number: 9720159
    Abstract: Disclosed are an optical member and a display device including the same. The optical member includes a receiving member; a host in the receiving member; and a plurality of wavelength conversion particles distributed in the host. The receiving member includes a light incident part having a first refractive index; and a light exit part having a second refractive index different from the first refractive index. The optical member improves the optical characteristics by adjusting the refractive indexes of the light incident part and the light exit part.
    Type: Grant
    Filed: January 17, 2017
    Date of Patent: August 1, 2017
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Soon Young Hyun, June Roh, Kyung Jin Kim, Ja Ram Kim, Jae Hong Lee
  • Patent number: 9703034
    Abstract: The disclosure provides a light guiding plate comprising a main body and an extending plate. The main body comprises an incident surface, an illuminating surface adjacent with the incident surface, and a bottom surface opposite to the illuminating surface. The extending plate extends from the incident surface toward the direction away from the main body. The disclosure also provides a backlight module and a display device.
    Type: Grant
    Filed: May 21, 2015
    Date of Patent: July 11, 2017
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventor: Yanxue Zhang
  • Patent number: 9563009
    Abstract: The present invention discloses a backlight module, which comprises a plastic frame, a backplane, a light guide and an optical film, the backplane comprises a mutually perpendicular vertical plate and horizontal plate, the plastic frame and the light guide are provided inside the backplane, the optical film is close to the upper surface of the plastic frame and the light guide. The present invention further provides a display device, which reduces the size of the plastic frame through pasting the optical film on the upper surface of the plastic frame and the light guide, achieving the ultra-narrow frame design.
    Type: Grant
    Filed: October 24, 2014
    Date of Patent: February 7, 2017
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventor: Gege Zhou
  • Patent number: 9551473
    Abstract: A lighting device for a motor vehicle includes a light source for sending out a light beam. The lighting device also includes a lightguide of elongated shape made of a plastic, primarily transparent material for guiding the light beam, while a portion of a mantle of the lightguide forms an exit surface for emergence of rays of light of the light beam, wherein another portion of the mantle of the lightguide opposite the exit surface is at least partly provided with a diffuse means formed by a nontransparent coating or foil pressed against the mantle of the lightguide, or joined to a diffuse means of the plastic primarily nontransparent material in the process of injection molding of the plastic.
    Type: Grant
    Filed: June 3, 2014
    Date of Patent: January 24, 2017
    Assignee: VARROC LIGHTING SYSTEMS, S.R.O.
    Inventors: Tomas Gloss, Petr Ferbas
  • Patent number: 9322978
    Abstract: A plastic frame, a display having the same and a method for manufacturing the plastic frame are disclosed, wherein the display has a display module and a backlight module. The display module connects to the backlight module, and the backlight module has a light guiding plate, illuminating elements, and a plastic frame. The plastic frame has a frame body and a light guiding element. The frame body is made of plastics and the light guiding plate and the illuminating elements are accommodated therein. The light guiding element has a first end and a second end, is made of light optically transmissive material, and is integrally formed. The height of the first end is H1 and the height of the second end is H2, wherein H1>H2, and the light guiding plate is disposed near the second end.
    Type: Grant
    Filed: August 8, 2014
    Date of Patent: April 26, 2016
    Assignee: Wistron Corporation
    Inventor: Yi-Hsin Lin
  • Patent number: 9316777
    Abstract: A backlight assembly having a light emitting module and a lower receiving container, the light emitting module including a first light source configured to generate a first light and a quantum dot rail configured to generate a second light from the first light the light emitting module is disposed under a display panel to provide the display panel with the second light, and the lower receiving container is configured to receive the light emitting module and the display panel.
    Type: Grant
    Filed: June 24, 2014
    Date of Patent: April 19, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyun-Min Cho, Kwang-Keun Lee, Jong-Hyuk Kang, Jae-Byung Park, Baek-Hee Lee
  • Patent number: 9274372
    Abstract: A quantum dot light-emitting device and a display apparatus including the same, the device including a light-emitting device that emits a first light; a quantum dot layer facing the light-emitting device, the quantum dot layer including a plurality of quantum dots, absorbing the first light, and emitting a second light and a third light that have different wavelength ranges compared to the first light; and a band pass filter on the quantum dot layer, the band pass filter cutting off a portion of the second light and a portion of the third light.
    Type: Grant
    Filed: August 12, 2014
    Date of Patent: March 1, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jae-Byung Park, Jong-Hyuk Kang, Hak-Sun Kim, Nam-Seok Roh, Dong-Hoon Lee
  • Patent number: 9207380
    Abstract: Provided is a display device. The display device includes a light guide plate, a light source disposed on a side surface of the light guide plate, a light conversion member disposed between the light source and the light guide plate, and a plurality of light path change particles disposed between the light conversion member and the light guide plate.
    Type: Grant
    Filed: July 5, 2011
    Date of Patent: December 8, 2015
    Assignee: LG Innotek Co., Ltd.
    Inventor: Kee Tae Um
  • Patent number: 9194559
    Abstract: An illumination lens includes a light receiving surface 101; and a light exit surface 103. When the axis of 101 is designated as Z-axis, a position of the bottom of the lens is designated as z=0 and X-axis and Y-axis are defined in a plane which contains z=0 and is perpendicular to Z-axis, 101 is symmetric about YZ-plane and XZ-plane and a cross-sectional area of a cross section of 101 parallel to XY-plane monotonously decreases with increase in z-coordinate. When the maximum value of z-coordinate on 101 is designated as d and a radius of the cross section of 103 at z=0 is designated as r, a point (x, y) on a cross section of 101 at z=0.3d is represented by ( x a ) 2 + ( y b ) 2 = f ? ( ? ) ? ? 0 ? ? ? ? 2 ( 1 ) where a and b represent constants and ? = tan - 1 ? ( y x ) ? ? f ? ( 0 ) = f ? ( ? 2 ) = 1.0 , ? and ? ? f ? ( ? ) ? 1.
    Type: Grant
    Filed: September 24, 2013
    Date of Patent: November 24, 2015
    Assignee: NALUX CO., LTD.
    Inventors: Daisuke Seki, Katsumoto Ikeda, Takatoshi Suzuki
  • Patent number: 9195087
    Abstract: A display device includes a chassis 14, a frame 13, a photo curable resin member 30a, 30b, and a heat dissipation member 19. The frame 13 includes a portion supporting the light guide plate 16 from a side of a light exit surface 16asuch that the light guide plate 16 slides. The photo curable resin member 30a, 30bis arranged between an LED board 18 and the light guide plate 16 and fixed thereto to maintain a distance between a mount surface 18a of the LED board 18 and a light entrance surface 16b of the light guide plate 16. The heat dissipation member 19 having a heat dissipation property is arranged apart from the frame 13 and includes a board attachment portion 19a to which the LED board 18 is attached and a plate-like portion 19b. The plate-like portion 19b extends from the board attachment portion 19a toward the light guide plate 16. The plate-like portion 19b is a plate spring including a portion being elastically in contact with a second bottom plate 14b.
    Type: Grant
    Filed: April 24, 2013
    Date of Patent: November 24, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Kentaro Terashima
  • Patent number: 9170360
    Abstract: A display device includes a side light type backlight for white color display by single color LEDs, an LED set is placed in a concave portion of a light guide plate, in which a first color LED is located in the center and a second or third color LED is located on the side of the first color LED. An incident slit with an arc shaped convex portion is formed facing the first color LED, and a saw tooth slit with a right-angled triangular concave portion is formed facing the second or third color LED. This allows directing the distribution axes of the lights from the second and third color LEDs to the center side, and adjusting orientation angles to allow effective mixing of the three color lights, in order to increase the white color area and effective display area.
    Type: Grant
    Filed: July 29, 2013
    Date of Patent: October 27, 2015
    Assignee: JAPAN DISPLAY INC.
    Inventors: Kazufumi Watabe, Masayuki Mifune
  • Patent number: 9121982
    Abstract: A light-emitting device which has a plate-shaped light guide (102) having front and rear surfaces (106, 108), being major surfaces, and edge surfaces (110, 112, 114, 116); and a light source (104) arranged at the plate-shaped light guide at such a position that the generated light is entered into the plate-shaped light guide and propagates in a substantial direction of propagation that is parallel with the front surface. At least a portion of the plate-shaped light guide includes a three-dimensional surface structure (118) arranged to provide a controlled light output through at least one of the front and rear surfaces and at least one of the edge surfaces. The controlled light output is controlled in terms of light output characteristics.
    Type: Grant
    Filed: October 3, 2011
    Date of Patent: September 1, 2015
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Dorien Cato Van Der Lans, Bart Andre Salters
  • Patent number: 9121975
    Abstract: A light guide plate and a backlight module are provided. The backlight module includes a light source and the light guide plate. The light source includes a light emitting surface. The light guide plate includes a light incident surface, a first surface, and a second surface, wherein the first surface is opposite to the second surface. The light guide plate is disposed at a side of the light source. The light incident surface of the light guide plate is opposite to the light emitting surface of the light source. The light incident surface is connected to the first surface and the second surface and includes a first curved surface and a second curved surface. The first curved surface is adjacent to the first surface, and the second curved surface is adjacent to the second surface. The first curved surface is a concave surface.
    Type: Grant
    Filed: February 6, 2014
    Date of Patent: September 1, 2015
    Assignee: Wistron Corporation
    Inventors: Ya-Ping Niu, Chin-Yung Liu
  • Patent number: 9121981
    Abstract: The present invention provides a light unit, comprising a printed circuit board equipped with a plurality of LEDs; and a light guide member equipped with mounting grooves to house the LEDs. It is preferred that the light guide member comprises one surface and another surface facing the one surface; a first density pattern area and a second density pattern area having higher density than that of the first density pattern area are formed in the one surface; and the second density pattern is disposed in an area closer to the light emitting surface of the LED than the first density pattern area. According to the present invention, hot spots can be removed by forming high density optical patterns on the upper surface of a light guide member and diffusing the light of LEDs; meanwhile, the transmission range of light can be extended and light extraction efficiency can be improved by disposing low density optical patterns in adjacent areas.
    Type: Grant
    Filed: July 15, 2011
    Date of Patent: September 1, 2015
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Jong Sun Kim, Sang Jun Park, Kyoung Soo Ahn, Kyoung Jong Yoo, Yong In Lee
  • Patent number: 9081128
    Abstract: A backlight module includes a back bezel, a light guide plate, a plurality of optical films, and a clamping device. The light guide plate is disposed in an area enclosed by a periphery structure of the back bezel, and the optical films are disposed on the light guide plate. The clamping device includes a supporting element, a clamping piece, and a cushion element. The supporting element protrudes from the back bezel. The clamping piece is disposed on the supporting element and extends from the back bezel to the optical films. The cushion element is disposed between the clamping piece and the optical films.
    Type: Grant
    Filed: November 5, 2013
    Date of Patent: July 14, 2015
    Assignee: Au Optronics Corporation
    Inventors: Tun-Hao Hsu, Chang-Ho Shen, Kuo-Chih Lee
  • Patent number: 9075173
    Abstract: Disclosed is a display device. The display device includes a light source, a light guide part to receive a light emitted from the light source, a light conversion member between the light source and the light guide part, and a spacer between the light source and the light conversion member.
    Type: Grant
    Filed: June 30, 2014
    Date of Patent: July 7, 2015
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Seung Ryong Park, Hyun Ho Choi, Gi Seok Lee
  • Patent number: 9054345
    Abstract: A method for preparing a pixel defining layer (PDL), an organic light-emitting diode (OLED) substrate prepared by the PDL, and a display device are provided, which can overcome the problem that the conventional PDL comprising hydrophilic and hydrophobic materials involves a complicated process. The method for preparing the PDL comprises: step 1: forming a mixed solution on a substrate to form a mixed solution film, in which the mixed solution includes a hydrophilic material, a hydrophobic material and a solvent; step 2: performing heat treatment on the mixed solution film to form a pixel defining material layer in which the content of the hydrophilic material on the upper portion is less than that of the hydrophilic material on the lower portion and the content of the hydrophobic material on the upper portion is more than that of the hydrophobic material on the lower portion; and step 3: forming a pattern of the PDL on the pixel defining material layer by a patterning process.
    Type: Grant
    Filed: May 31, 2013
    Date of Patent: June 9, 2015
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Wenjun Hou, Ze Liu
  • Patent number: RE47584
    Abstract: Disclosed is a display device. The display device includes a light source, a light guide part to receive a light emitted from the light source, a light conversion member between the light source and the light guide part, and a spacer between the light source and the light conversion member.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: August 27, 2019
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Seung Ryong Park, Hyun Ho Choi, Gi Seok Lee