With Phosphor Embedding Material Patents (Class 313/502)
  • Patent number: 10858582
    Abstract: To provide a semiconductor light emitting device which is capable of accomplishing a broad color reproducibility for an entire image without losing brightness of the entire image. A light source provided on a backlight for a color image display device has a semiconductor light emitting device comprising a solid light emitting device to emit light in a blue or deep blue region or in an ultraviolet region and phosphors, in combination. The phosphors comprise a green emitting phosphor and a red emitting phosphor. The green emitting phosphor and the red emitting phosphor are ones, of which the rate of change of the emission peak intensity at 1000 C to the emission intensity at 25° C., when the wavelength of the excitation light is 400 nm or 455 nm, is at most 40%.
    Type: Grant
    Filed: May 3, 2018
    Date of Patent: December 8, 2020
    Assignee: CITIZEN ELECTRONICS CO., LTD.
    Inventors: Byungchul Hong, Naoki Sako, Naoto Kijima, Masahiko Yoshino, Takashi Hase, Fumiko Yoyasu, Kentarou Horibe
  • Patent number: 10797002
    Abstract: Sputtering systems and methods for packaging applications. In some embodiments, a method for processing a plurality of packaged devices can include forming or providing a first assembly having a stencil and a two-sided adhesive member attached to a first side of the stencil, with the stencil having a plurality of openings, and the two-sided adhesive member having a plurality of openings corresponding to the openings of the stencil. The method can further include attaching the first assembly to a ring to provide a second assembly, with the ring being dimensioned to facilitate a deposition process. The method can further include loading a plurality of packaged devices onto the second assembly such that each packaged device is held by the two-sided adhesive member of the first assembly and a portion of each packaged device extends into the corresponding opening of the two-sided adhesive member.
    Type: Grant
    Filed: January 31, 2017
    Date of Patent: October 6, 2020
    Assignee: Skyworks Solutions, Inc.
    Inventors: Hoang Mong Nguyen, Matthew Sean Read
  • Patent number: 10781369
    Abstract: Provided are a wavelength conversion member which contains a phosphor such as a quantum dot and has high reproducibility of white light; and a backlight unit. The wavelength conversion member includes a wavelength conversion layer having a resin layer that is provided with a plurality of concave portions which are discretely disposed on one main surface thereof; and a plurality of fluorescent regions containing phosphors, which are disposed in the concave portions formed in the resin layer, in which a surface roughness Ra of a surface of the resin layer on a side where the concave portions are formed is 0.3 to 5 ?m.
    Type: Grant
    Filed: May 30, 2019
    Date of Patent: September 22, 2020
    Assignee: FUJIFILM Corporation
    Inventor: Takashi Yonemoto
  • Patent number: 10774032
    Abstract: Provided herein are metal halide perovskite nanoplatelets, methods for making metal halide perovskite nanoplatelets, and devices and composite materials that include metal halide nanoperovskite nanoplatelets. The metal halide perovskite nanoplatelets may be stable at ambient temperature and pressure, thereby easing device fabrication.
    Type: Grant
    Filed: September 22, 2016
    Date of Patent: September 15, 2020
    Assignee: Florida State University Research Foundation, Inc.
    Inventors: Hanwei Gao, Biwu Ma, Yichuan Ling, Zhao Yuan
  • Patent number: 10763399
    Abstract: A light emitting device package includes a light emitting structure including a first light emitting cell, a second light emitting cell, and a third light emitting cell, each of the first to third light emitting cells including an active layer to emit light of a first wavelength in a first direction and being separated from each other in a second direction, orthogonal to the first direction, a first light adjusting portion including a first wavelength conversion layer in a first recess portion of the first light emitting cell, the first wavelength conversion layer to convert light of the first wavelength to light of a second wavelength, and a second light adjusting portion including a second wavelength conversion layer in a second recess portion of the second light emitting cell, the second wavelength conversion layer to convert light of the first wavelength to light of a third wavelength.
    Type: Grant
    Filed: August 23, 2017
    Date of Patent: September 1, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Dong Gun Lee, Yong Il Kim, Young Soo Park, Jin Sub Lee, Wan Tae Lim
  • Patent number: 10732457
    Abstract: A backlight module includes a transparent substrate, a plurality of light sources on a surface of the transparent substrate, a reflective sheet on a side of the transparent substrate adjacent to the plurality of light sources, and at least one supporting member between the transparent substrate and the reflective sheet. The light sources are configured for emitting light. The reflective sheet is configured for reflecting light toward the transparent substrate. The at least one supporting member is configured for separating the plurality of light sources from the reflective sheet.
    Type: Grant
    Filed: January 29, 2019
    Date of Patent: August 4, 2020
    Assignee: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Ming-Cheng Tai, Li-Chiao Huang, Chia-Yi Tsai, Yao-Pin Hsu
  • Patent number: 10725367
    Abstract: A wavelength conversion element according to the invention includes a wavelength conversion layer having a plurality of air holes, and excited by light in a first wavelength band to thereby generate light in a second wavelength band different from the first wavelength band, a transparent member adapted to seal a recessed section occurring on a first surface of the wavelength conversion layer due to the air hole, a reflecting layer disposed so as to be opposed to the first surface of the wavelength conversion layer, and a base member disposed so as to be opposed to the reflecting layer, and the transparent member is disposed in some of the plurality of air holes.
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: July 28, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Tomohiro Yokoo, Kei Tadachi
  • Patent number: 10707383
    Abstract: A light emitting device includes: a light emitting element; a light-transmissive member including a first lower surface, an outer periphery of which being located on an outer side of the light extraction surface in a plan view, an upper surface having a greater area than an area of the first lower surface, a first lateral surface connected to the upper surface, a second lateral surface positioned on an inner side of the first lateral surface and connected to the first lower surface, and a second lower surface connected to the first and second lateral surfaces; a light guiding member covering at least a portion of a lateral surface of the light emitting element and at least a portion of the second lateral surface and the second lower surface; and a covering member covering the first lateral surface and a lateral surface of the light guiding member.
    Type: Grant
    Filed: April 23, 2018
    Date of Patent: July 7, 2020
    Assignee: NICHIA CORPORATION
    Inventor: Takanobu Sogai
  • Patent number: 10627063
    Abstract: A light source module includes first LED elements that emit blue light, second LED elements that emit amber light, and a wavelength conversion member disposed in optical paths of the first LED elements and the second LED elements. The wavelength conversion member converts a portion of the blue light emitted by the first LED elements to yellow light, transmits a portion of the blue light emitted by the first LED elements, and substantially transmits the amber light emitted by the second LED elements.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: April 21, 2020
    Assignee: KOITO MANUFACTURING CO., LTD.
    Inventors: Yuzo Maeno, Tsukasa Tokida, Shinpei Maeda, Hidemichi Sone
  • Patent number: 10608155
    Abstract: A method for manufacturing a light emitting device includes: placing a light-transmissive member, which includes first and second regions, above a light emitting element so that the first region of the light-transmissive member is positioned directly above a top surface of the light emitting element, and a lateral surface of the light emitting element and a bottom surface of the second region of the light-transmissive member are covered by a light guide member; and covering an outer surface of the light guide member with a light reflective member. The light-transmissive member contains a fluorescent substance and a light scattering material, a concentration of the fluorescent substance in the light-transmissive member is higher in the first region than in the second region, and a concentration of the light scattering material in the light-transmissive member is higher in the second region than in the first region.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: March 31, 2020
    Assignee: NICHIA CORPORATION
    Inventor: Hirosuke Hayashi
  • Patent number: 10575381
    Abstract: An electroluminescent display is flexible and stretchable, and therefore able to be attached to a textile. All interior layers of the electroluminescent display can be made using a screen printing process which can be scaled for volume production.
    Type: Grant
    Filed: June 1, 2018
    Date of Patent: February 25, 2020
    Assignee: Flex Ltd.
    Inventors: William Uy, Weifeng Liu, Dason Cheung, Jie Lian, Christian Biederman, Anwar Mohammed, Murad Kurwa
  • Patent number: 10559642
    Abstract: An organic light-emitting device including: a substrate; an anode above the substrate; wiring above the substrate, spaced away from the anode in a direction parallel to a main surface of the substrate; a light-emitting layer above the anode, containing an organic light-emitting material; an intermediate layer on the light-emitting layer and the wiring, continuous over the light-emitting layer and the wiring and containing a fluoride of a first metal which is an alkali metal or an alkaline earth metal; an organic functional layer on the intermediate layer, continuous over the light-emitting layer and the wiring and made of an organic material having an electron transporting property or an electron injection property and doped with a second metal having a property of cleaving a bond between the first metal and fluorine in the fluoride; and a cathode on the organic functional layer, continuous over the light-emitting layer and the wiring.
    Type: Grant
    Filed: March 12, 2015
    Date of Patent: February 11, 2020
    Assignee: JOLED INC.
    Inventors: Hiroaki Yamane, Masaki Nishimura, Jun Hashimoto, Noriyuki Matsusue, Kazuhiro Yoneda, Minh Hiep Hoang
  • Patent number: 10527271
    Abstract: An LED lighting device is provided. The LED lighting device may include a light source configured to emit a light of first color temperature, second color temperature, and third color temperature and a switch electrically connected to the light source to control the light source to emit the lights of the first color temperature, the second color temperature, and the third color temperature, respectively. The light source includes a first light source configured to emit a light of a first color temperature, and a second light source configured to emit a light of a second color temperature that is different from the first color temperature, and the light source emits a light of a third color temperature between the first and second color temperatures when the switch parallel-connects the first light source and the second light source.
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: January 7, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Won Hoe Koo, Il Seok Lee, Dong Hyuk Kim
  • Patent number: 10529696
    Abstract: At least one array of LEDs (e.g., in a flip chip configuration) is supported by a substrate having a light extraction surface overlaid with at least one lumiphoric material. Light segregation elements registered with gaps between LEDs are configured to reduce interaction between emissions of different LEDs and/or lumiphoric material regions to reduce scattering and/or optical crosstalk, thereby preserving pixel-like resolution of the resulting emissions. Light segregation elements may be formed by mechanical sawing or etching to define grooves or recesses in a substrate, and filling the grooves or recesses with light-reflective or light-absorptive material. Light segregation elements external to a substrate may be defined by photolithographic patterning and etching of a sacrificial material, and/or by 3D printing.
    Type: Grant
    Filed: January 5, 2017
    Date of Patent: January 7, 2020
    Assignee: Cree, Inc.
    Inventors: John Edmond, Matthew Donofrio, Jesse Reiherzer, Peter Scott Andrews, Joseph G. Clark, Kevin Haberern
  • Patent number: 10516292
    Abstract: A lifestyle LED security light including a light-emitting unit configured with two sets of LED loads respectively emitting different color temperature lights is disclosed. At dusk the light-emitting unit is automatically turned on for a first level illumination with a low color temperature light featuring an aesthetic night view with the motion sensor being deactivated for a time duration, and then the light emitting unit is changed to a second level illumination and at the same time the motion sensor is activated, wherein when the motion sensor detects a motion intrusion, the light-emitting unit is instantly switched to perform a third level illumination with a a high light intensity and a high color temperature light. The color temperatures of the first level illumination and the third level illumination are respectively adjustable by simultaneously and reversely adjusting the electric powers respectively allocated to the two sets of LED loads.
    Type: Grant
    Filed: January 10, 2019
    Date of Patent: December 24, 2019
    Assignee: Vaxcel International Co., Ltd.
    Inventor: Chia-Teh Chen
  • Patent number: 10497882
    Abstract: A light emitting diode and a method of fabricating the same are described. The light emitting diode has: a hole transport layer, an active layer and an electron transport layer. The active layer is disposed on the hole transport layer, and the active layer has a mesophase structure of an organic amine compound and a perovskite structure compound. The electron transport layer is disposed on the active layer.
    Type: Grant
    Filed: May 8, 2017
    Date of Patent: December 3, 2019
    Assignee: National Cheng Kung University
    Inventor: Tzung-fang Guo
  • Patent number: 10443791
    Abstract: The invention relates to an LED-module (1) for emitting mixed light, preferably white light, comprising a light field (2??;2??) which is divided into several flat sectors for dispensing different light spectra. The flat sectors of the light field (2??;2??) are embodied as sectors of a circle (3c??,3d??;3c??,3d??) and sectors of a circular ring (3a??,3??;3a??,3b??).
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: October 15, 2019
    Assignee: TRIDONIC JENNERSDORF GMBH
    Inventors: Florian Wimmer, Jurgen Gumhold
  • Patent number: 10374189
    Abstract: An opto-electronic element according to an exemplary embodiment of the present disclosure includes a transparent conductive layer including a first material made of a metal and a second material made of a metal halide.
    Type: Grant
    Filed: August 11, 2016
    Date of Patent: August 6, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventor: Dong Chan Kim
  • Patent number: 10355220
    Abstract: An organic light emitting display device is disclosed. The organic light emitting display device comprising at least one light emitting part between an anode and a cathode and comprising at least one organic layer and a light emitting layer, wherein the at least one organic layer comprises a compound that includes a functional group having at least three or more nitrogen atoms and has high electron mobility, a bridge connected to the functional group, and a substituent substituted at a meta position of the bridge.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: July 16, 2019
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Shinhan Kim, Dohan Kim, Hyoseok Kim, Min Yun, Seunghee Yoon
  • Patent number: 10236658
    Abstract: There is herein described a light source comprising a semiconductor device emitting a primary light, a thermally conductive optic having a reflective coating and a wavelength converter having a front surface and a rear surface. The optic is mounted to the rear surface of the wavelength converter and the primary light impinges on the wavelength converter in an emission region. The wavelength converter converts at least a portion of the primary light into a secondary light that is emitted from the front and rear surfaces of the converter and the optic reflects secondary light emitted from the rear surface back into the emission region. The light source may be used in either transmissive or reflective configurations.
    Type: Grant
    Filed: February 16, 2015
    Date of Patent: March 19, 2019
    Inventors: Alan Lenef, John Kelso, Darshan Kundaliya
  • Patent number: 10211262
    Abstract: A display substrate includes a first switching element electrically connected to a gate line extending in a first direction and a data line extending in a second direction crossing the first direction, an organic layer disposed on the first switching element, a shielding electrode disposed on the organic layer and overlapping the data line, a pixel electrode disposed on the same layer as the shielding electrode and a light-blocking pattern disposed on the shielding electrode and adjacent to a corner of the pixel electrode.
    Type: Grant
    Filed: January 9, 2018
    Date of Patent: February 19, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyung-June Kim, Wan-Soon Im
  • Patent number: 10193032
    Abstract: A method for manufacturing a light emitting device includes: providing a substrate including a placement region for placing a light emitting element on a top surface; mounting the light emitting element in the placement region; and forming a frame body surrounding the placement region on the substrate. The step of forming the frame body is performed by arranging a first frame body and second frame body on the substrate to surround the placement region. The second frame body have a larger diameter than the first frame body, and have the same thickness as the first frame body.
    Type: Grant
    Filed: September 7, 2017
    Date of Patent: January 29, 2019
    Assignee: NICHIA CORPORATION
    Inventors: Shogo Abe, Tadayuki Kitajima
  • Patent number: 10193033
    Abstract: A light emitting device includes a plurality of light emitting elements, a light transmissive member, a first member and a second member. Each of the light emitting elements has a pair of electrodes on a lower surface thereof. The light-transmissive member is disposed on an upper surface of each of the light emitting elements to transmit light from the light emitting elements. The first member is disposed on one or more lateral surfaces of the light-transmissive member and constitutes part of an upper surface of the light emitting device. The second member surrounds an outer periphery of each of the light emitting elements and constitutes part of a lower surface of the light emitting device. Lower surfaces of the electrodes are exposed from the second member.
    Type: Grant
    Filed: December 19, 2016
    Date of Patent: January 29, 2019
    Assignee: NICHIA CORPORATION
    Inventor: Takuya Nakabayashi
  • Patent number: 10149365
    Abstract: Some embodiments include a method of operating a tunable light module. The method can include driving a lamp in the tunable light module, having lamps of at least two colors, to produce a colored light according to the color mixing plan that corresponds to a correlated color temperature (CCT); measuring a light characteristic of the lamp using a light sensor; detecting a degradation level by comparing the measured light characteristic against an expected light characteristic; and adjusting a current level for driving the lamp at the CCT by referencing the color mixing plan and an alternative coefficient corresponding to the degradation level.
    Type: Grant
    Filed: April 7, 2017
    Date of Patent: December 4, 2018
    Assignee: LUMENETIX, INC.
    Inventor: Matthew D. Weaver
  • Patent number: 10147709
    Abstract: A light emitting module including a light emitting device package structure and a heat dissipation structure is provided. The light emitting device package structure includes light emitting devices, a patterned reflective element and a patterned conductive layer. The patterned reflective element is disposed around side surfaces of the light emitting devices and exposes a first bottom surface of a first pad and a second bottom surface of a second pad. The patterned conductive layer is disposed on the first bottom surface of the first pad and the second bottom surface of the second pad. The light emitting devices are electrically connected to each other in a series connection, a parallel connection or a series-parallel connection through the patterned conductive layer. The heat dissipation structure is disposed below the light emitting device package structure and includes a heat dissipation unit and a patterned circuit layer disposed on the heat dissipation unit.
    Type: Grant
    Filed: October 16, 2017
    Date of Patent: December 4, 2018
    Assignee: Genesis Photonics Inc.
    Inventors: Hao-Chung Lee, Yu-Feng Lin
  • Patent number: 10121941
    Abstract: A light source device having: a blue light emitting element that emits blue light having an emission peak in a wavelength region of 440 nm to 460 nm; a green phosphor that absorbs part of the blue light emitted by the blue light emitting element and thereby emits green light having an emission peak in a wavelength region of 500 nm to 575 nm; a red phosphor that absorbs at least one of part of the blue light emitted by the blue light emitting element and part of the green light emitted by the green phosphor, and thereby emits red light having an emission peak in a wavelength region of 600 nm to 690 nm; and an absorbent containing neodymium fluoride that absorbs part of the green light and part of the red light.
    Type: Grant
    Filed: September 27, 2016
    Date of Patent: November 6, 2018
    Assignee: NICHIA CORPORATION
    Inventors: Daisuke Iwakura, Masaki Hayashi, Shoji Hosokawa, Yusaku Achi
  • Patent number: 10084143
    Abstract: A compound selected from is provided. An organic light emitting device including an anode, cathode, and organic layer disposed between the anode and cathode, including one of the compounds is also provided.
    Type: Grant
    Filed: April 21, 2015
    Date of Patent: September 25, 2018
    Assignee: Universal Display Corporation
    Inventors: Bert Alleyne, Raymond Kwong, Walter Yeager, Chuanjun Xia
  • Patent number: 10036832
    Abstract: This multilayer component (11) for encapsulating an element (12) which is sensitive to air and/or moisture comprises an organic polymer layer (1) and at least one barrier stack (2). The barrier stack (2) comprises at least three successive thin layers (21-23) having alternately lower and higher degrees of crystallinity, the ratio of the degree of crystallinity of a layer of higher degree of crystallinity to the degree of crystallinity of a layer of lower degree of crystallinity being greater than or equal to 1.1.
    Type: Grant
    Filed: April 6, 2012
    Date of Patent: July 31, 2018
    Assignee: SAINT-GOBAIN PERFORMANCE PLASTICS CORPORATION
    Inventors: Charles Leyder, Claire Thoumazet, Martin Python
  • Patent number: 10014450
    Abstract: The invention provides a light emitting diode device that comprises a light emitting diode die. The method for manufacturing the light emitting diode device comprises positioning a first stencil over a carrier, printing a phosphor material onto the carrier through at least one aperture of the first stencil to form a phosphor material piece on the carrier, and attaching the light emitting diode die onto the printed phosphor material piece.
    Type: Grant
    Filed: February 9, 2017
    Date of Patent: July 3, 2018
    Assignee: ASM TECHNOLOGY SINGAPORE PTE LTD
    Inventors: Ka Yee Mak, Ho Yin Wong, Ho Yin Lou
  • Patent number: 9978734
    Abstract: A light-emitting arrangement includes a radiation-emitting semiconductor chip that, during operation, emits primary radiation at least from a main emission surface, a first conversion element that absorbs part of the primary radiation and emits secondary radiation, and a deflection element that causes a direction change for part of the primary radiation, wherein the first conversion element is arranged in a lateral direction next to the radiation-emitting semiconductor chip, the deflection element guides part of the primary radiation onto the first conversion element, and the light-emitting arrangement, in operation, emits mixed light including the primary radiation and the secondary radiation.
    Type: Grant
    Filed: January 26, 2015
    Date of Patent: May 22, 2018
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventors: Matthias Sabathil, Alexander Linkov, Britta Göötz, Georg Dirscherl
  • Patent number: 9972807
    Abstract: A display apparatus is provided. The display apparatus includes a substrate, a display panel on the substrate, and an encapsulation film sealing the display panel. The encapsulation film includes at least one organic layer and/or at least one inorganic layer and at least one pair of conductive layers.
    Type: Grant
    Filed: March 11, 2014
    Date of Patent: May 15, 2018
    Assignees: Samsung Display Co., Ltd., Seoul National University R&DB Foundation
    Inventors: Min-Ho Oh, Yoon-Hyeung Cho, Yong-Tak Kim, So-Young Lee, Jong-Woo Kim, Ji-Young Moon, Hyeong-Joon Kim, Sang-Hyun Park, Hyuk-Jin Kim, Seung-Ha Oh
  • Patent number: 9966557
    Abstract: To constitute a translucent electrode including a base layer having a surface in which surface roughness (Ra) is 2 or less and elastic modulus is 20 GPa or more, and an electrically conductive layer that is provided on the surface side of the base layer and that contains silver as the principal component.
    Type: Grant
    Filed: October 10, 2013
    Date of Patent: May 8, 2018
    Assignee: KONICA MINOLTA, INC.
    Inventor: Hiromoto Il
  • Patent number: 9947828
    Abstract: A quantum dot light-emitting device includes: a first electrode; a second electrode opposite to the first electrode; an emission layer between the first electrode and the second electrode, the emission layer including quantum dots; and an inorganic layer between the emission layer and the second electrode, the inorganic layer including a metal halide.
    Type: Grant
    Filed: September 13, 2016
    Date of Patent: April 17, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yisu Kim, Dongchan Kim, Eungseok Park, Wonmin Yun, Byoungduk Lee, Yongchan Ju
  • Patent number: 9939706
    Abstract: A brightness enhancing structure for a reflective display incorporates a transparent sheet having an inward hemispherical surface, a backplane electrode, an apertured membrane between the hemispherical surface and the backplane electrode, and a light reflecting electrode on an outward side of the membrane. A voltage source connected between the electrodes is switchable to apply a first voltage to move the particles inwardly through the apertured membrane toward the backplane electrode, and a second voltage to move the particles outwardly through the apertured membrane toward the light reflecting electrode. Movement of the particles toward the light reflecting electrode frustrates total internal reflection of light rays at the hemispherical surface.
    Type: Grant
    Filed: March 18, 2014
    Date of Patent: April 10, 2018
    Assignee: CLEARink Displays, Inc.
    Inventor: Lorne A. Whitehead
  • Patent number: 9917272
    Abstract: The present application relates to an electronic device comprising a hole-transport layer A, a doped hole-transport layer B and a hole-transport layer C, where hole-transport layers A, B and C are arranged between the anode and the emitting layer, and where hole-transport layer B is arranged on the cathode side of hole-transport layer A and hole-transport layer C is arranged on the cathode side of hole-transport layer B.
    Type: Grant
    Filed: September 11, 2013
    Date of Patent: March 13, 2018
    Assignee: Merck Patent GmbH
    Inventors: Frank Voges, Jonas Valentin Kroeber, Christof Pflumm, Joachim Kaiser, Arne Buesing
  • Patent number: 9911794
    Abstract: The present invention provides an organic light emitting display device, belonging to the field of display technology, being capable of solving the problem, in an existing organic light emitting display device, of shortened service life of an organic light emitting diode due to moisture escape from the thin film transistor layer or the like. The organic light emitting display device of the present invention comprises a first pixel defining layer doped with a desiccant, which absorbs moisture escaping from an array substrate or the like during the use of the organic light emitting display device, thus improving the ageing and shrinkage of some pixels in the organic light emitting display device and prolonging the service life of the organic light emitting display device.
    Type: Grant
    Filed: August 29, 2014
    Date of Patent: March 6, 2018
    Assignee: BOE Technology Group Co., Ltd.
    Inventor: Zhiqiang Jiao
  • Patent number: 9911921
    Abstract: Provided is an organic light-emitting device capable of outputting light with high efficiency and high luminance. The organic light-emitting device includes an anode, a cathode, an emission layer placed between the anode and the cathode, and an organic compound layer placed between the anode and the emission layer, in which the organic compound layer contains the following compound A and compound B: [Compound A] an organic compound free of a nitrogen atom and a metal atom, the compound having SP2 carbon atoms and SP3 carbon atoms, and having a ratio of the number of the SP3 carbon atoms to the number of the SP2 carbon atoms of 40% or more; and [Compound B] a compound having a tertiary amine structure.
    Type: Grant
    Filed: April 3, 2014
    Date of Patent: March 6, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventors: Naoki Yamada, Jun Kamatani, Akihito Saitoh, Yosuke Nishide, Masanori Muratsubaki, Ryuji Ishii, Koichi Ishige, Takayuki Ito, Norifumi Kajimoto, Nobutaka Mizuno
  • Patent number: 9905788
    Abstract: An organic light emitting display includes a red light emitting layer, a green light emitting layer and a blue light emitting layer formed between first and second electrodes, a hole-transporting layer formed between the first electrode and each of the red, the green and the blue light emitting layers, and an electron-transporting layer formed between the second electrode and each of the red, the green and the blue light emitting layers, wherein at least one light emitting layer of the red, the green and the blue light emitting layers includes a first light emitting layer including a light emitting host and a light emitting dopant, and a second light emitting layer which is formed between the first light emitting layer and at least one of the electron-transporting layer and the hole-transporting layer, and includes the light emitting dopant.
    Type: Grant
    Filed: November 22, 2013
    Date of Patent: February 27, 2018
    Assignee: LG Display Co., Ltd.
    Inventors: Se-Hee Lee, Sun-Kap Kwon
  • Patent number: 9897298
    Abstract: Disclosed is a light emitting module including a circuit board and a light source unit disposed on the circuit board. The light source unit includes a plurality of first, second and third light emitting devices emitting light of different colors, the plurality of first light emitting devices are disposed in an outer circumference of the second and third light emitting devices, the plurality of second light emitting devices are disposed in both sides of the plurality of the third light emitting devices, the plurality of first light emitting devices emits light having a wavelength longer than that of light emitted from the second and third light emitting devices. The plurality of second light emitting devices emits light having a wavelength longer than that of light emitted from the third light emitting devices, and the numbers of the first to third light emitting devices are different from one another.
    Type: Grant
    Filed: February 4, 2016
    Date of Patent: February 20, 2018
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Mi Na Shin, Eon Ho Son, Young Joo Ahn
  • Patent number: 9887377
    Abstract: The present application discloses an array substrate comprising a light emitting region comprising a plurality of light emitting units. Each of the plurality of light emitting units comprises a first emissive layer of a first light emitting material for emitting a compound light having a first color and a second color; the first color corresponding to a color of light emitted from a first sub-pixel and the second color corresponding to a color of light emitted from a second sub-pixel; and a second emissive layer of a second light emitting material corresponding to a third sub-pixel for emitting light of a third color. The first color and the second color are different from a color of light from the first emissive layer.
    Type: Grant
    Filed: February 22, 2016
    Date of Patent: February 6, 2018
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Chinlung Liao, Chang Yen Wu
  • Patent number: 9806236
    Abstract: A light-emitting device includes a substrate, a light-emitting element disposed on the substrate, and a sealing member for sealing the light-emitting element. The sealing member contains at least a particulate red phosphor. The red phosphor contains at least a Mn4+-activated fluoride complex phosphor. The sealing member has an upper surface with irregularities on at least part of the upper surface.
    Type: Grant
    Filed: October 6, 2014
    Date of Patent: October 31, 2017
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Masaharu Kitano, Kohji Miyake, Takashi Ono, Toshio Hata
  • Patent number: 9780264
    Abstract: The present application discloses a light-emitting element comprising a semiconductor light-emitting stack emitting a first light which has a first color coordinate, a first wavelength conversion material on the semiconductor light-emitting stack converting the first light to emit a second light, and a second wavelength conversion material on the first wavelength conversion material converting the second light to emit a third light. The first light and the second light are mixed to be a fourth light having a second color coordinate. The third light and the fourth light are mixed to be a fifth light having a third color coordinate, and the second color coordinate locates at the top right of the first color coordinate and the third color coordinate locates at the top right of the second color coordinate.
    Type: Grant
    Filed: July 24, 2014
    Date of Patent: October 3, 2017
    Assignee: EPISTAR CORPORATION
    Inventors: Chiao-Wen Yeh, Hsing-Chao Chen, Pei-Lun Chien
  • Patent number: 9780258
    Abstract: A light emitting device includes a base member; a light emitting element mounted on the base member; a light-transmissive member that covers an upper surface of the light emitting element, and is substantially rectangular in a plan view; and a light reflecting member that covers a lateral surface of the light-transmissive member, the light reflecting member having a substantially rectangular frame shape in a plan view. A width of the light reflecting member is smaller along a short side of the light-transmissive member than along a long side of the light-transmissive member. A height of the light reflecting member is smaller along the short side of the light-transmissive member than along the long side of the light-transmissive member at a position separated from an outer edge of the light reflecting member by a predetermined distance.
    Type: Grant
    Filed: July 21, 2016
    Date of Patent: October 3, 2017
    Assignee: NICHIA CORPORATION
    Inventors: Satoshi Shichijo, Kunihito Sugimoto, Kenji Ozeki, Shogo Abe
  • Patent number: 9751985
    Abstract: A triptycene-based monomer, a method of making a triptycene-based monomer, a triptycene-based aromatic polyimide, a method of making a triptycene-based aromatic polyimide, methods of using triptycene-based aromatic polyimides, structures incorporating triptycene-based aromatic polyimides, and methods of gas separation are provided. Embodiments of the triptycene-based monomers and triptycene-based aromatic polyimides have high permeabilities and excellent selectivities. Embodiments of the triptycene-based aromatic polyimides have one or more of the following characteristics: intrinsic microporosity, good thermal stability, and enhanced solubility. In an exemplary embodiment, the triptycene-based aromatic polyimides are microporous and have a high BET surface area. In an exemplary embodiment, the triptycene-based aromatic polyimides can be used to form a gas separation membrane.
    Type: Grant
    Filed: June 9, 2014
    Date of Patent: September 5, 2017
    Assignee: King Abdullah University of Science and Technology
    Inventors: Bader Ghanem, Ingo Pinnau, Raja Swaidan
  • Patent number: 9755175
    Abstract: Disclosed is an OLED display panel, a method for manufacturing the same, and a display apparatus. The OLED display panel comprises a substrate and a light emitting structure including a plurality of sets of light emitting units sequentially arranged on the substrate side by side, each set of light emitting units including a first light emitting unit, a second light emitting unit and a third light emitting unit. In each set of light emitting units, at least two of the first, second and third light emitting units are located in different layers. The OLED display panel and the display apparatus can reduce signal attenuation and crosstalk between different signals.
    Type: Grant
    Filed: August 26, 2014
    Date of Patent: September 5, 2017
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Shang Wang, Wei Qin
  • Patent number: 9741935
    Abstract: An organic light-emitting device including a first electrode, a second electrode and an organic layer disposed between the first electrode and the second electrode is provided.
    Type: Grant
    Filed: March 11, 2014
    Date of Patent: August 22, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventor: Jae-Yong Lee
  • Patent number: 9691944
    Abstract: A semiconductor light-emitting device of the present disclosure includes a plurality of semiconductor layers; a first inclined face having a first slope inside the plurality of semiconductor layers, which connects an etched-exposed surface of the first semiconductor layer with the surface of the second semiconductor layer and reflects the light from the active layer towards the first semiconductor layer; a second inclined face having a second slope greater than the first slope, which is provided around the plurality of semiconductor layers and reflects the light from the active layer towards the first semiconductor layer; a non-conductive reflective film formed on the second semiconductor layer, for reflecting the light from the active layer towards the first semiconductor layer.
    Type: Grant
    Filed: December 4, 2013
    Date of Patent: June 27, 2017
    Assignee: SEMICON LIGHT CO., LTD.
    Inventors: Soo Kun Jeon, Eun Hyun Park
  • Patent number: 9622319
    Abstract: A film formation substrate is arranged such that (i) a base end, in a y-axis direction, of a film-thickness-gradually-diminishing part of a first film overlaps a first film formation region, and (ii) a film-thickness-gradually-diminishing part of a second film is disposed on an outside, in the y-axis direction, of a second film formation region and overlaps the film-thickness-gradually-diminishing part of the first film so as to compensate for a gradually diminished thickness of the film-thickness-gradually-diminishing part.
    Type: Grant
    Filed: January 13, 2012
    Date of Patent: April 11, 2017
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Tohru Sonoda, Shinichi Kawato, Satoshi Inoue, Satoshi Hashimoto
  • Patent number: 9570531
    Abstract: An organic light emitting display device includes a substrate comprising a major surface; a display region and a peripheral region surrounding the display region when viewed in a viewing direction perpendicular to the major surface; an array of a plurality of pixels disposed in the display region; and a first power line extending from the peripheral region into the display region, the first power line being electrically connected to the array of pixels at a contact point in the display region. When viewed in the viewing direction, the first power line includes: a first extension extending from the peripheral region to the display region; and a second extension connected to the first extension; and a third extension connected to the second extension and extending from a location in the display region toward the peripheral region.
    Type: Grant
    Filed: February 20, 2015
    Date of Patent: February 14, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kyung Hoon Chung, Chul-Kyu Kang, Jung-Mi Choi
  • Patent number: 9557215
    Abstract: Contrary to conventional wisdom, which holds that light-emitting diodes (LEDs) should be cooled to increase efficiency, the LEDs disclosed herein are heated to increase efficiency. Heating an LED operating at low forward bias voltage can be accomplished by injecting phonons generated by non-radiative recombination back into the LED's semiconductor lattice. This raises the temperature of the LED's active rejection, resulting in thermally assisted injection of holes and carriers into the LED's active region. This phonon recycling or thermo-electric pumping process can be promoted by heating the LED with an external source (e.g., exhaust gases or waste heat from other electrical components). It can also be achieved via internal heat generation, e.g., by thermally insulating the LED's diode structure to prevent (rather than promote) heat dissipation. In other words, trapping heat generated by the LED within the LED increases LED efficiency under certain bias conditions.
    Type: Grant
    Filed: August 16, 2013
    Date of Patent: January 31, 2017
    Assignee: Massachusetts Institute of Technology
    Inventors: Parthiban Santhanam, Dodd Joseph Gray, Rajeev Jagga Ram