With Particular Phosphor Or Electrode Material Patents (Class 313/503)
  • Patent number: 11549055
    Abstract: A wavelength converting includes a diffused-reflecting layer, a substrate, a photoluminescence layer, and a binder. The diffused-reflecting layer has a first surface and a second surface facing away from each other. The substrate is over the first surface of the diffused-reflecting layer. The photoluminescence layer is over the second surface of the diffused-reflecting layer. The binder is mixed at least in the photoluminescence layer or at least in the diffused-reflecting layer, the binder includes a structural unit represented by formula (1), and a characteristic absorption band in a Fourier-Transform Infrared (FTIR) Spectrum of silicon-oxygen-silicon bonds (Si—O—Si bonds) in the binder is from 900 cm?1 to 1250 cm?1, in which R represents an aromatic group.
    Type: Grant
    Filed: July 8, 2020
    Date of Patent: January 10, 2023
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Li-Cheng Yang, Jih-Chi Li
  • Patent number: 11542431
    Abstract: A phosphor combination may include a first phosphor and a second phosphor. The second phosphor may be a red-emitting quantum dot phosphor. The phosphor combination may optionally include a third phosphor that is a red-emitting phosphor with the formula (MB) (TA)3-2x(TC)1+2xO4-4xN4x:E. A conversion element may include the phosphor combination. An optoelectronic device may include the phosphor combination and a radiation-emitting semiconductor chip.
    Type: Grant
    Filed: November 8, 2018
    Date of Patent: January 3, 2023
    Assignee: OSRAM OLED GMBH
    Inventors: Rainer Butendeich, Philipp Pust, David O'Brien, Ion Stoll, Marcus Adam
  • Patent number: 11522034
    Abstract: A display device includes: a substrate including a display area and a peripheral area; a first conductive layer on the substrate in the peripheral area; an insulation layer covering the first conductive layer; and a second conductive layer on the insulation layer in the peripheral area, the second conductive layer including a plurality of first holes, wherein the first conductive layer does not overlap the first holes of the second conductive layer.
    Type: Grant
    Filed: June 1, 2020
    Date of Patent: December 6, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Min Woo Woo, Moo-Soon Ko, Wangwoo Lee
  • Patent number: 11513409
    Abstract: A highly visible display device is provided. The display device includes a transistor, a first conductive layer, a second conductive layer, and a third conductive layer. The channel width of the transistor is greater than or equal to 30 ?m and less than or equal to 1000 ?m. The transistor includes 2 to 50 semiconductor layers, each of which includes a first region, a second region, and a channel formation region. The channel formation region has a region overlaps with the first conductive layer. The first region overlaps with the second conductive layer and does not overlap with the first conductive layer. The second region overlaps with the third conductive layer and does not overlap with the first conductive layer. The third conductive layer has a function of transmitting visible light, and the second region and the third conductive layer in a stacked state have a function of transmitting visible light.
    Type: Grant
    Filed: March 22, 2019
    Date of Patent: November 29, 2022
    Inventors: Kouhei Toyotaka, Koji Kusunoki
  • Patent number: 11512247
    Abstract: The present invention relates to a phosphor plate including a sintered body including (Y1-x-y, Gdx, Cey)3Al5O12 particles and Al2O3 particles, in which 0.07?x?0.11 and 0.010?y?0.015 are satisfied, the (Y1-x-y, Gdx, Cey)3Al5O12 particles in the sintered body has an average particle diameter of 4 ?m or more and 6 ?m or less, the (Y1-x-y, Gdx, Cey)3Al5O12 particles has a concentration of 20 vol % or more and 30 vol % or less with respect to a total amount 100 vol % of the (Y1-x-y, Gdx, Cey)3Al5O12 particles and the Al2O3 particles, a ratio of an average particle diameter of the Al2O3 particles to the average particle diameter of the (Y1-x-y, Gdx, Cey)3Al5O12 particles is 1 or more and 2 or less, and the sintered body has a total thickness of 150 ?m or more and 250 ?m or less.
    Type: Grant
    Filed: November 5, 2021
    Date of Patent: November 29, 2022
    Assignee: CoorsTek KK
    Inventors: Masaki Irie, Yuma Suzuki
  • Patent number: 11502276
    Abstract: An organic electroluminescent element includes a first electrode, a second electrode, and an organic compound layer disposed between the first and second electrodes. A protective layer and a planarization layer are disposed in this order on the light emission side of whichever of the first and second electrodes is closer to the light emission side. A surface of the protective layer adjacent to the planarization layer has an uneven shape. The planarization layer is in contact with the protective layer. A surface of the planarization layer away from the protective layer is flat. The refractive index of the planarization layer is equal to or lower than that of the protective layer and equal to or higher than that of a light emission medium in contact with the planarization layer.
    Type: Grant
    Filed: February 14, 2020
    Date of Patent: November 15, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventors: Koji Ishizuya, Hiroaki Sano
  • Patent number: 11500260
    Abstract: The present invention has as an object to, by controlling how oil injected into a liquid drop control device wet spreads, make it harder for bubbles to remain in a cell. A liquid drop control device of the present invention is characterized in that in at least one substrate, there is a gap between an end face of a lyophobic layer and a seal material and the lyophobic layer and the seal material make contact with each other in at least one place.
    Type: Grant
    Filed: June 5, 2018
    Date of Patent: November 15, 2022
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Takeshi Hara, Tomoko Teranishi, Akihiko Shibata
  • Patent number: 11502134
    Abstract: This disclosure relates to reduced power consumption OLED displays at reduced cost for reduced information content applications, such as wearable displays. Image quality for wearable displays can be different than for high information content smart phone displays and TVs, where the wearable display has an architecture that in includes, for example, an all phosphorescent device and/or material system that may be fabricated at reduced cost. The reduced power consumption can facilitate wireless and solar charging.
    Type: Grant
    Filed: March 3, 2020
    Date of Patent: November 15, 2022
    Assignee: Universal Display Corporation
    Inventors: Michael Hack, Julia J. Brown, Michael Stuart Weaver, Woo-Young So
  • Patent number: 11489017
    Abstract: The disclosure provides a display panel, a method for preparing the display panel, and a display device. The display panel includes: a driving backplane, wherein the driving backplane comprises a display area, the display area is provided with a heterotypic edge, and the display area comprises a plurality of first pixel opening areas and a plurality of second pixel opening areas; wherein the plurality of first pixel opening areas are close to the heterotypic edge, and the plurality of second pixel opening areas are away from the heterotypic edge; and a light emitting structure, wherein the light emitting structure is arranged on the driving backplane and comprises a first functional layer, wherein each of the second pixel opening areas is completely covered by the first functional layer, and each of the first pixel opening areas is partially covered by the first functional layer.
    Type: Grant
    Filed: July 14, 2020
    Date of Patent: November 1, 2022
    Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., Beijing BOE Technology Development Co., Ltd.
    Inventors: Kunyan Shi, Pohsien Wu
  • Patent number: 11482647
    Abstract: A light emitting device includes: a light emitting element having a light emission peak wavelength in a range of 380 nm or more and 470 nm or less, and a wavelength conversion member disposed on a light emission side of the light emitting device and comprising: a fluorescent material layer containing a fluorescent material excited by light emitted from the light emitting device, having a light emission peak wavelength in a range of 500 nm or more and 780 nm or less, and a band-pass filter layer disposed on a light emission side of the fluorescent material layer.
    Type: Grant
    Filed: September 25, 2020
    Date of Patent: October 25, 2022
    Assignee: NICHIA CORPORATION
    Inventors: Yuji Sato, Miyuki Kurata
  • Patent number: 11450790
    Abstract: The red light-emitting device includes a light source, a first layer covering at least a portion of the light source and containing a fluoride phosphor converting light emitted from the light source, and a second layer covering at least a portion of the first layer and containing a nitride phosphor converting light emitted from the light source and/or the first layer. An emission intensity ratio at an emission peak wavelength of the light source is greater than 0 and 0.1 or less, and the emission intensity ratio at the wavelength of the maximum emission peak in an emission spectrum of the light-emitting device is greater than 2.8, supposing the reference emission intensity that is the minimum emission intensity within the range of plus or minus 15 nm or 30 nm from the wavelength of the maximum emission peak in the emission spectrum of the light-emitting device is 1.
    Type: Grant
    Filed: March 28, 2020
    Date of Patent: September 20, 2022
    Assignee: NICHIA CORPORATION
    Inventors: Chihiro Yamada, Daisuke Iwakura
  • Patent number: 11442348
    Abstract: A wavelength conversion element includes a first phosphor region and a second phosphor region. The second phosphor region is disposed in a thickness direction of the first phosphor region and has a phosphor particle with a particle size different from a particle size of a phosphor particle positioned in the first phosphor region.
    Type: Grant
    Filed: January 5, 2021
    Date of Patent: September 13, 2022
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Takashi Ikeda, Makoto Maeda, Yusaku Nishikawa
  • Patent number: 11434422
    Abstract: A phosphor powder composed of ?-sialon phosphor particles containing Eu. In a case where an internal quantum efficiency after the phosphor powder is held at 600° C. for 1 hour in an air atmosphere is defined as P1 and an internal quantum efficiency after the phosphor powder is held at 700° C. for 1 hour in an air atmosphere is defined as P2, P1 is equal to or more than 70% and (P1?P2)/P1×100 is equal to or less than 2.8%.
    Type: Grant
    Filed: March 24, 2020
    Date of Patent: September 6, 2022
    Assignee: DENKA COMPANY LIMITED
    Inventors: Tomohiro Nomiyama, Yusuke Takeda, Taiyo Yamaura, Tatsuya Okuzono, Masaru Miyazaki, Shintaro Watanabe
  • Patent number: 11435515
    Abstract: The present invention provides a backlight module and a display device. The backlight module includes a blue laser diode and a laser radiation film. A light emitting surface of the blue laser diode is disposed close to the laser radiation film. A blue laser emitted by the blue laser diode excites the laser radiation film to emit a red laser and a green laser, and the blue laser, the red laser, and the green laser are mixed to form white light.
    Type: Grant
    Filed: December 17, 2019
    Date of Patent: September 6, 2022
    Assignee: TCL China Star Optoelectronics Technology Co., Ltd.
    Inventor: Jinyang Zhao
  • Patent number: 11409161
    Abstract: A dual green-blue light-emitting diode unit may include a first green-blue light-emitting diode and a second green-blue light-emitting diode. The first green-blue light-emitting diode may include a first green diode configured to emit green light at a first green wavelength, a first blue diode configured to emit blue light at a first blue wavelength, and a first conformal coating of red phosphor over the first green diode and the first blue diode. The second green-blue light-emitting diode may include a second green diode configured to emit green light at a second green wavelength different from the first green wavelength, a second blue diode configured to emit blue light at a second blue wavelength different from the first blue wavelength, and a second conformal coating of red phosphor over the second green diode and the second blue diode.
    Type: Grant
    Filed: September 25, 2020
    Date of Patent: August 9, 2022
    Assignee: Dell Products L.P.
    Inventors: Yong-Gu Kang, Eunseok Kim
  • Patent number: 11404673
    Abstract: A first light-emitting element and a second light-emitting element that have a resonance structure that causes output light from a light-emission functional layer to resonate between a reflective layer and a semi-transmissive reflective layer, and a pixel definition layer, and in which an aperture part is formed to correspond to each of the first light-emitting element and the second light-emitting element, are formed on a base. A first interval between the reflective layer and the semi-transmissive reflective layer in the first light-emitting element and a second interval between the reflective layer and the semi-transmissive reflective layer in the second light-emitting element are different, and a film thickness of the pixel definition layer is less than a difference between the first interval and the second interval.
    Type: Grant
    Filed: February 11, 2021
    Date of Patent: August 2, 2022
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Ryoichi Nozawa, Atsushi Amano, Takeshi Koshihara, Akio Fukase, Shinichi Iwata
  • Patent number: 11393987
    Abstract: The present invention relates to an organic electroluminescent device comprising a hole-injection layer comprising a metal complex as a main component and a method for producing the organic electroluminescent device.
    Type: Grant
    Filed: February 27, 2018
    Date of Patent: July 19, 2022
    Assignee: MERCK PATENT GMBH
    Inventors: Ilona Stengel, Frank Voges, Teresa Mujica-Fernaud, Henning Seim
  • Patent number: 11380712
    Abstract: The disclosure relates to a display panel. The display panel may have a display area, a transition area, and a via hole area. The transition area may be between the via hole area and the display area. The display panel may include a substrate; an isolation structure on the substrate only in the transition area; and an encapsulation layer in both of the transition area and the display area. A first side surface of the isolation structure facing the via hole area may include a recess toward an interior of the isolation structure, and the encapsulation layer may include a cavity surrounding the isolation structure in the recess.
    Type: Grant
    Filed: December 4, 2019
    Date of Patent: July 5, 2022
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Qin Zhang, Duanming Li, Guowei Li
  • Patent number: 11380734
    Abstract: An OLED display including first, second, and third color pixels on a substrate, each including a first electrode, an organic emission layer, a second electrode, and a capping layer, in which the first color pixel emits green light, and each of the second and third color pixels emits a color of light other than green, the organic emission layer of the first color pixel includes first and second emission layers that emit light, the organic emission layer of the second or third color pixel includes a third emission layer that emit light, the second and third emission layers include both a host and a dopant, the first emission layer includes the host, but not any dopants therein, and the second emission layer is disposed on the first electrode, and the first emission layer is disposed on the second emission layer.
    Type: Grant
    Filed: September 27, 2020
    Date of Patent: July 5, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hee Seong Jeong, Won Ju Kwon, Dal Ho Kim, Gi-Na Yoo, Dong Jin Lee
  • Patent number: 11380822
    Abstract: The purpose of the invention is to both improve the luminance of a SCASN-based phosphor and achieve deep-color rendering properties. Provided is a red phosphor having a main crystal phase having the same crystal structure as a crystal structure of CaAlSiN3, the main crystal phase represented by the general formula MAlSiN3, wherein an internal quantum efficiency, as measured when the red phosphor is excited by light having a wavelength of 455 nm, is 71% or more, and M in the general formula represents an element group containing at least three elements selected from Eu, Sr, Mg, Ca, and Ba, the element group containing Eu, Sr, and Ca as essentials, and a Eu content is 4.5 mass % or more and 7.0 mass % or less, a Sr content is 34.0 mass % or more and 42.0 mass % or less, and a Ca content is 0.8 mass % or more and 3.0 mass % or less.
    Type: Grant
    Filed: October 2, 2018
    Date of Patent: July 5, 2022
    Assignee: DENKA COMPANY LIMITED
    Inventors: Tomohiro Nomiyama, Marina Takamura, Yusuke Takeda, Shintaro Watanabe
  • Patent number: 11375600
    Abstract: A control device controls a plurality of light emitting devices, and includes: a controller that: collects device information from the light emitting devices that are repeatedly turned on and off in a lighting pattern, wherein a turn-on period and a turn-off period are defined within a cycle in the lighting pattern; determines an arrangement order of the light emitting devices based on the device information; calculates a start time at which each of the light emitting devices starts repetition of the lighting pattern using the arrangement order; and transmits lighting information including the start time to each of the light emitting devices and causes each of the light emitting devices to start the repetition of the lighting pattern.
    Type: Grant
    Filed: November 15, 2021
    Date of Patent: June 28, 2022
    Assignee: NAGOYA ELECTRIC WORKS CO., LTD.
    Inventors: Atsushi Tanaka, Hiroaki Sengoku, Koji Miyagawa
  • Patent number: 11374201
    Abstract: A thin film package structure, a thin film package method, and a display panel are disclosed. The thin film package structure includes a substrate, an organic adhesive layer, and a package film layer. The package film layer covers the substrate and the organic adhesive layer. The organic adhesive layer in the non-display region is designed to have a groove structure and an embankment structure defined by the groove structure. The groove structure and the embankment structure surround the display region. At least one of the groove structures and the embankment structure is a structure extending in a zigzag form or a grid-shaped structure. The organic adhesive layer is disposed in the non-display region of the substrate, and is designed to have multiple zigzagging or grid-shaped groove structures.
    Type: Grant
    Filed: April 28, 2018
    Date of Patent: June 28, 2022
    Assignee: KUNSHAN GO-VISIONOX OPTO-ELECTRONICS CO., LTD.
    Inventors: Quan Liu, Lu Zhang, Zhenzhen Han, Siming Hu, Hui Zhu
  • Patent number: 11367643
    Abstract: A method for printing on a substrate includes printing a support structure by printing a liquid precursor material and curing the liquid precursor material, printing one or more alignment markers by printing the liquid precursor material outside the support structure and curing the liquid precursor material, positioning a substrate within the support structure, performing a registration of the substrate using the one or more alignment markers, and printing one or more device structures on the substrate while registered by printing and curing the liquid precursor material.
    Type: Grant
    Filed: April 2, 2020
    Date of Patent: June 21, 2022
    Assignee: Applied Materials, Inc.
    Inventors: Daihua Zhang, Hou T. Ng, Nag B. Patibandla, Sivapackia Ganapathiappan, Yingdong Luo, Kyuil Cho, Han-Wen Chen
  • Patent number: 11362287
    Abstract: A novel class of gold(III) compounds containing cyclometalated tridentate ligand and one aryl auxiliary ligand, both coordinated to a gold(III) metal center. (a) X is nitrogen or carbon; (b) Y and Z are independently nitrogen or carbon; (c) A is cyclic structure (derivative) of pyridine, quinoline, isoquinoline or phenyl group; (d) B and C are independently cyclic structures (derivatives) of pyridine, quinoline, isoquinoline or phenyl groups; (e) B and C can be identical or non-identical, with the proviso that both B and C are not 4-tert-butylbenzene; (f) R? is a substituted carbon, nitrogen, oxygen or sulfur donor ligand attached to the gold atom; (g) n is zero, a positive integer or a negative integer. wherein R? is selected from, but not limited to, aryl, substituted aryl, heteroaryl, substituted heteroaryl, heterocyclic aryl and substituted heterocyclic aryl, alkoxy, aryloxy, amide, thiolate, sulfonate, phosphide, fluoride, chloride, bromide, iodide, cyanate, thiocyanate or cyanide.
    Type: Grant
    Filed: October 3, 2017
    Date of Patent: June 14, 2022
    Assignee: THE UNIVERSITY OF HONG KONG
    Inventors: Vivian Wing-Wah Yam, Man Chung Tang, Mei Yee Chan, Chin Ho Lee, Lok Kwan Li
  • Patent number: 11349081
    Abstract: New azaindolocarbazole compounds are disclosed, which can be used as hosts in an organic electroluminescent device. Compared to existing host materials, the compounds can effectively modulate the charge transporting properties in host materials and give OLEDs better performance. An electroluminescent device and a formulation are also disclosed.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: May 31, 2022
    Assignee: BEIJING SUMMER SPROUT TECHNOLOGY CO., LTD.
    Inventor: Chuanjun Xia
  • Patent number: 11339325
    Abstract: An ?-sialon phosphor particle containing Eu. At least one slit is formed on a surface of the ?-sialon phosphor particle. The ?-sialon phosphor particle is preferably produced by undergoing a raw material mixing step, a heating step, a pulverizing step, and an acid treatment step.
    Type: Grant
    Filed: March 24, 2020
    Date of Patent: May 24, 2022
    Assignee: DENKA COMPANY LIMITED
    Inventors: Tomohiro Nomiyama, Yusuke Takeda, Marina Takamura, Tatsuya Okuzono, Masaru Miyazaki, Shintaro Watanabe
  • Patent number: 11333922
    Abstract: A display panel, a method for fabricating the same, and a display device are provided. The display panel includes: a first substrate, and a plurality of pixels in an array on the first substrate, where each pixel includes a plurality of sub-pixels in different colors, and interference filters one-to-one corresponding to the sub-pixels are arranged on light emitting sides of the sub-pixels, and configured to transmit light in narrow bands in the same colors as the corresponding sub-pixels. The interference filters corresponding to the colors of light emitted from the sub-pixels are arranged on the light emitting sides of the sub-pixels so that the light in the narrow bands in the corresponding colors are transmitted, thus improving the saturation of the colors of the emitted light, extending the display color gamut of the display panel, and optimizing the display effect.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: May 17, 2022
    Assignees: Ordos Yuansheng Optoelectronics Co., Ltd., BOE Technology Group Co., Ltd.
    Inventor: Yu Yuan
  • Patent number: 11326099
    Abstract: A scintillator for positron emission tomography is provided. The scintillator includes a garnet compound of a formula of A3B2C3O12 and an activator ion consisting of cerium. A3 is A2X. X consists of at least one lanthanide element. A2 is selected from the group consisting of (i), (ii), (iii), and any combination thereof, wherein (i) consists of at least one lanthanide element, (ii) consists of at least one group I element selected from the group consisting of Na and K, and (iii) consists of at least one group II element selected from the group consisting of Ca, Sr, and Ba. B2 consists of Sn, Ti, Hf, Zr, and any combination thereof. C3 consists of Al, Ga, Li, and any combination thereof. The garnet compound is doped with the activator ion.
    Type: Grant
    Filed: October 30, 2019
    Date of Patent: May 10, 2022
    Assignee: GE PRECISION HEALTHCARE LLC
    Inventors: Alok Mani Srivastava, Sergei Ivanovich Dolinsky
  • Patent number: 11329123
    Abstract: An OLED display panel is provided which can control the problem of shedding even in high definition panels. Metal wiring 5 which conducts with an earth line of a flexible printed substrate 15 is provided on a substrate 1. A display area 2 comprised from a plurality of OLED elements is provided at the center of the substrate 1 and four low resistance metal films 3 are provided along each of four edges of the display area 2 on a surface of insulation films 8, 10 at the periphery of the display area 2. Among these, one low resistance metal film 3 conducts with the metal wiring 5 via a 3a.
    Type: Grant
    Filed: June 2, 2020
    Date of Patent: May 10, 2022
    Assignee: Japan Display Inc.
    Inventors: Kouhei Takahashi, Hirotsugu Sakamoto, Takeshi Ookawara, Toshihiro Sato
  • Patent number: 11312900
    Abstract: A method for producing a nitride fluorescent material includes preparing fluorescent material core particles having a composition containing Sr, Ca, Eu, Al, Si, and N, in which, when a molar ratio of Al in the composition is 1, a molar ratio of Sr is in a range of 0.45 or more and 1.1 or less, a molar ratio of Ca is in a range of more than 0 and less than 0.55, a molar ratio of Eu is in a range of more than 0 and 0.033 or less, a total molar ratio of Sr, Ca, and Eu is 1.1 or less, a molar ratio of Si is in a range of 0.81 or more and 1.21 or less, and a molar ratio of N is in a range of 2.25 or more and 3.85 or less, subjecting them to a first heat treatment and a second heat treatment.
    Type: Grant
    Filed: February 6, 2020
    Date of Patent: April 26, 2022
    Assignee: NICHIA CORPORATION
    Inventors: Hiroyuki Watanabe, Shigeyuki Suzuki, Shoji Hosokawa
  • Patent number: 11306060
    Abstract: The present specification relates to a compound and an organic electronic device comprising the same.
    Type: Grant
    Filed: September 8, 2017
    Date of Patent: April 19, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Yongbum Cha, Sang Duk Suh, Jungbum Kim, Sung Kil Hong
  • Patent number: 11307715
    Abstract: In a display device, a driving element is disposed on a rear substrate, and a passivation layer covers the driving element. A pixel electrode is disposed on the passivation layer and is connected to the driving element. An organic emission layer is disposed on the pixel electrode and is configured to emit light toward the rear substrate. A common electrode is disposed on the organic emission layer. A touch electrode is disposed between the rear substrate and the passivation layer, and it forms a capacitive component when an external touch occurs.
    Type: Grant
    Filed: June 15, 2018
    Date of Patent: April 19, 2022
    Inventors: Se Hyoung Cho, Kyung-Hoon Kim, Kang Moon Jo, Dong Woo Kim, Il Gon Kim
  • Patent number: 11302677
    Abstract: A method of manufacturing an LED display device, including the successive steps of: a) transferring, onto a planar surface of a support plate made of a transparent material having its other surface structured and defining a plurality of microlenses, a plurality of semiconductor chips, each including at least one LED; and b) forming a network of conductive interconnection tracks contacting the chips by their surface opposite to the support plate.
    Type: Grant
    Filed: September 3, 2018
    Date of Patent: April 12, 2022
    Assignee: Commissariat à l'Énergie Atomique et aux Énergies Alternatives
    Inventors: Ivan-Christophe Robin, Stéphane Caplet, Umberto Rossini
  • Patent number: 11296152
    Abstract: The present disclosure is related to an array substrate. The array substrate may include a substrate; and a plurality of sub-pixels emitting different colors of light on the substrate. Each of the plurality of sub-pixels may include a green electroluminescence component, and each of the plurality of the sub-pixels other than green sub-pixels further may include a color conversion layer on a light-exiting side of the green electroluminescence component.
    Type: Grant
    Filed: October 18, 2019
    Date of Patent: April 5, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yong Yu, Yang Yue, Jiangnan Lu, Shi Shu, Chuanxiang Xu, Haitao Huang, Xiang Li, Min Huang
  • Patent number: 11289670
    Abstract: A display device according to an embodiment of the present invention includes: a substrate; a lower electrode provided above the substrate; an insulating film provided above the lower electrode and having an opening; an organic layer arranged at least partly in the opening and electrically connected to the lower electrode; and an upper electrode electrically connected above the organic layer; the organic layer includes a hole injection layer, the opening includes a first area arranged to a center side, and a second area arranged on an outer side of the first area, and the hole injection layer has a higher p-dopant concentration in the first area than in the second area.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: March 29, 2022
    Assignee: Japan Display Inc.
    Inventor: Hironori Toyoda
  • Patent number: 11282905
    Abstract: Disclosed is an electroluminescent display device including a substrate, a first electrode provided on the substrate, a bank configured to cover an end of the first electrode and to define an emission area, and provided with a first receiving groove, an emission layer provided on the first electrode in the emission area defined by the bank, and a light absorbing layer provided in the first receiving groove of the bank, wherein the first receiving groove is formed in the bank, and the light absorbing layer is formed in the first receiving groove so that the external light is absorbed in the light absorbing layer, to thereby prevent the color interference and Haze phenomenon between the neighboring pixels.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: March 22, 2022
    Assignee: LG Display Co., Ltd.
    Inventors: SungSoo Park, HeeJin Kim, HakMin Lee
  • Patent number: 11275201
    Abstract: A display structure for an information handling system, including a top surface layer; a first nanoporous layer; a first polarizer layer; a thin-film-transistor (TFT) layer; a second polarizer layer; and a back light layer, wherein the first nanoporous layer is positioned between the top surface layer and the first polarizer layer, and wherein the first nanoporous layer has an index of refraction less than the index of refraction of the top surface layer to reduce specular reflection of the display structure.
    Type: Grant
    Filed: June 5, 2020
    Date of Patent: March 15, 2022
    Assignee: Dell Products L.P.
    Inventor: Deeder M. Aurongzeb
  • Patent number: 11276735
    Abstract: The present disclosure generally relates to display technologies, and in particular, to an array substrate, a method of fabricating array substrate, a display panel including the array substrate, and a display device including the display panel. The array substrate includes a substrate; a plurality of sub-pixel units provided on the substrate, each sub-pixel unit including a pair of sub-pixels; a first pixel defining portion provided between the pair of sub-pixels in a sub-pixel unit; a second pixel defining portion provided between a pair of adjacent sub-pixel units. The height of the first pixel defining portion is lower than the height of the second pixel defining portion.
    Type: Grant
    Filed: August 14, 2018
    Date of Patent: March 15, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Dini Xie, Wei Li
  • Patent number: 11251351
    Abstract: A light emitting diode having an improved heat dissipation effect includes a light source unit emitting a light to a front surface and including a light emitting part, a first electrode pad, and a second electrode pad. The light emitting diode further includes a lead frame unit disposed on a rear surface of the light source unit and including first and second lead terminals respectively connected to the first and second electrode pads. The light emitting diode also includes at least one of the first and second lead terminals includes an upper conductive layer, an intermediate conductive layer, and a lower conductive layer which are disposed on different layers and electrically connected to one another.
    Type: Grant
    Filed: March 16, 2020
    Date of Patent: February 15, 2022
    Assignee: SEOUL SEMICONDUCTOR CO., LTD.
    Inventor: Se Min Bang
  • Patent number: 11244929
    Abstract: A light emitting device (1) includes: three or more light emitting units (10, 20, 30) that individually include blue light emitting element, a wavelength range of the blue light emitting element accommodated in respective packages being different from each other. The light emitting device mixes output lights from the light emitting units (10, 20, 30) to output white light of a predetermined chromaticity. In an xy chromaticity diagram, the chromaticity of the output light from each of light emitting units (10, 20, 30) is located at a distance from the predetermined chromaticity. The difference between the chromaticity of the output light from each of the light emitting units (10, 20, 30) and the predetermined chromaticity is not greater than 0.04.
    Type: Grant
    Filed: October 30, 2017
    Date of Patent: February 8, 2022
    Assignee: Sanken Electric Co., Ltd.
    Inventors: Takaya Ueno, Hitoshi Murofushi
  • Patent number: 11237432
    Abstract: A display device is provided and a display unit of the display device includes a light emitting unit and a light converting layer disposed on the light emitting unit. The display unit emits an output light under an operation of the highest gray level, the output light having an output spectrum. An intensity integral of the output spectrum from 380 nm to 493 nm defines as a first intensity integral, an intensity integral of the output spectrum from 494 nm to 580 nm defines as a second intensity integral, a ratio of the first intensity integral over the second intensity integral defines as a first ratio, and the first ratio ranges from 5 to 20.
    Type: Grant
    Filed: July 16, 2019
    Date of Patent: February 1, 2022
    Assignee: InnoLux Corporation
    Inventors: Hsiao-Lang Lin, Jui-Jen Yueh, Kuan-Feng Lee, Jia-Yuan Chen
  • Patent number: 11217650
    Abstract: A display unit includes a substrate, a first electrode, a second electrode, an organic layer, and an auxiliary electrically-conductive layer. The substrate includes a pixel region including a plurality of pixels and a peripheral region outside the pixel region. The first electrode is provided for each of the plurality of pixels in the pixel region on the substrate. The second electrode is opposed to the first electrode, and is provided common for the plurality of pixels. The organic layer is provided between the second electrode and the first electrode, and includes a light-emitting layer. The auxiliary electrically-conductive layer includes an organic electrically-conductive material, and the auxiliary electrically-conductive layer is disposed in the pixel region on the substrate and is electrically coupled to the second electrode.
    Type: Grant
    Filed: December 4, 2018
    Date of Patent: January 4, 2022
    Assignee: JOLED INC.
    Inventors: Yasuhiro Terai, Yasuharu Shinokawa, Jiro Yamada, Atsuhito Murai, Masahiko Kondo, Noriteru Maeda
  • Patent number: 11211575
    Abstract: An organic light emitting diode, including a first electrode; a second electrode facing the first electrode, the second electrode including magnesium; an emission layer between the first electrode and the second electrode; and an electron injection layer between the second electrode and the emission layer, the electron injection layer including a dipole material including a first component and a second component having different polarities, the dipole material including halide, and a content of the magnesium included in the second electrode being in a range of from 10 to 40 volume %.
    Type: Grant
    Filed: May 21, 2020
    Date of Patent: December 28, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Dong Chan Kim, Won Jong Kim, Eung Do Kim, Dong Kyu Seo, Da Hea Im, Sang Hoon Yim, Chang Woong Chu
  • Patent number: 11208593
    Abstract: Embodiments of the invention are directed to a luminescent ceramic including a first phase and a second phase. The first phase is R3?x?y?z+w2A1.5x+y?w2MzSi6?w1?w2Alw1?w2N11?y?w1Oy+w1. R is selected from the group comprising trivalent La, Gd, Tb, Y, Lu; A is selected from the group comprising bivalent Ca, Mg, Sr, Ba, and Eu; and M is selected from the group comprising trivalent Ce, Pr and Sm. The second phase may be or comprise, for example, RE3ASi5N9O2 and RESi3N5, wherein RE is at least one rare-earth element selected from the group consisting of La, Gd, Lu, Y, Ce and Sc and wherein A is at least one metal element selected from the group consisting of Ba, Sr, Ca, Mg, Zn and Eu.
    Type: Grant
    Filed: April 2, 2019
    Date of Patent: December 28, 2021
    Inventors: Christoph Martiny, Peter Josef Schmidt, Christian Maak, Wolfgang Schnick
  • Patent number: 11201296
    Abstract: The present invention describes fluorene derivatives substituted by electron-transporting groups, especially for use as triplet matrix materials in electronic devices. The invention further relates to a process for preparing the compounds of the invention and to electronic devices comprising these.
    Type: Grant
    Filed: July 28, 2016
    Date of Patent: December 14, 2021
    Assignee: Merck Patent GmbH
    Inventors: Amir Hossain Parham, Thomas Eberle, Anja Jatsch, Tobias Grossmann, Jonas Valentin Kroeber
  • Patent number: 11194083
    Abstract: A color filter and a display apparatus employing the color filter are provided. The color filter includes a base substrate and a color photoresist layer disposed on the base substrate. The color photoresist layer includes a photopolymerized photosensitive composition, at least one of a pigment and a dye, and quantum dots.
    Type: Grant
    Filed: March 29, 2016
    Date of Patent: December 7, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Minsu Lee, Dohyun Kwon, Younjoon Kim, Mira Oh, Minjung Lee, Junghun Lee, Choongyoul Im, Mi Jang, Kyungmin Choi
  • Patent number: 11171188
    Abstract: There are provided an OLED device, an OLED display apparatus and a preparation method for an OLED device. The OLED device includes a pixel defining layer on a base substrate and an organic light-emitting functional layer in opening regions of the pixel defining layer, and further includes a first auxiliary electrode layer and a second auxiliary electrode layer which are arranged on the same layer The first auxiliary electrode layer and the second auxiliary electrode layer are arranged between the pixel defining layer and the base substrate, and an electric field can be formed between the first auxiliary electrode layer and the second auxiliary electrode layer. Organic light-emitting molecules in the organic light-emitting material are arranged directionally under the action of the electric field.
    Type: Grant
    Filed: June 5, 2018
    Date of Patent: November 9, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Qing Dai
  • Patent number: 11171300
    Abstract: A quantum dot light emitting diode includes: a light emitting layer, the light emitting layer including a first quantum dot layer and a second quantum dot layer which are stacked; the first quantum dot layer including a first quantum dot having a hole transporting property; and the second quantum dot layer including a second quantum dot having an electron transporting property. The first quantum dot layer having hole transporting property and the second quantum dot layer having electron transporting property are stacked. The first quantum dot layer and the second quantum dot layer not only form a quantum dot light emitting layer, but also transport holes and electrons respectively, thereby causing excitons to be recombined in the first quantum dot layer and/or the second quantum dot layer, or near the interface of the first quantum dot layer and the second quantum dot layer.
    Type: Grant
    Filed: April 8, 2019
    Date of Patent: November 9, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Gang Yu
  • Patent number: 11158770
    Abstract: An optoelectronic component and a lighting apparatus are disclosed. In an embodiment an optoelectronic component includes a carrier having an upper side and an underside opposite the upper side, an optoelectronic semiconductor chip arranged on the upper side of the carrier, the semiconductor chip configured to emit primary radiation during operation via one or more sides. The component further includes a first conversion layer having an inorganic phosphor on the semiconductor chip, the first conversion layer covering at least all radiation-emitting sides of the semiconductor chip not facing the carrier and a solid body in which an organic phosphor is distributed, wherein the solid body is arranged and fastened on the carrier and is at least in indirect contact with the carrier, and wherein the solid body is spaced from the radiation-emitting sides of the semiconductor chip at least by the first conversion layer and/or by the carrier.
    Type: Grant
    Filed: March 6, 2019
    Date of Patent: October 26, 2021
    Assignee: OSRAM OLED GMBH
    Inventors: Britta Göötz, Frank Singer
  • Patent number: 11152598
    Abstract: An electroluminescent display device includes a thin film transistor disposed on a substrate; a passivation layer disposed on the thin film transistor; a plurality of metallic patterns disposed to be spaced apart from each other on the passivation layer; a reflective electrode disposed conforming to the shapes of the plurality of metallic patterns and a top surface of the passivation layer and including a plurality of protruding portions; an overcoat layer disposed on the passivation layer and the reflective electrode and including an opening configured to expose a top surface of each of the plurality of protruding portions; a first electrode disposed on the reflective electrode and the overcoat layer and electrically connected to the reflective electrode; an light-emitting layer disposed on the first electrode; and a second electrode disposed on the light-emitting layer.
    Type: Grant
    Filed: June 18, 2020
    Date of Patent: October 19, 2021
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Yong-Hoon Choi, Won-Hoe Koo, Woo-Ram Youn