Having Solid-state Light Source Patents (Class 362/97.3)
  • Patent number: 12010813
    Abstract: A display assembly includes a mounting structure with one or more cavities for electronic equipment located along a dedicated central airflow pathway for a first flow of ambient air. Each of a number of side assemblies are attached to a respective side of the mounting structure and include a front cover, a display layer located rearward of the front cover, an illumination device for illuminating the display layer when operated, and one or more dedicated side assembly airflow pathways.
    Type: Grant
    Filed: July 22, 2022
    Date of Patent: June 11, 2024
    Assignee: Manufacturing Resources International, Inc.
    Inventors: William Dunn, Marcos Diaz, Andrew Lincoln
  • Patent number: 12001097
    Abstract: An edge-lit back light unit for a backlit display includes a reflector, an edge-lit light guide film, a diffuser film, and a pair of crossed brightness enhancement films with increased efficiency. The diffuser film has an angular light distribution output that is matched to light acceptance angles of the pair of crossed brightness enhancement films to provide increased on-axis brightness without having to increase power to the edge-lit back light unit.
    Type: Grant
    Filed: May 2, 2023
    Date of Patent: June 4, 2024
    Assignee: BrightView Technologies, Inc.
    Inventors: Kenneth L. Walker, Bing Shen, Matthew K. Pope
  • Patent number: 11994269
    Abstract: The present invention relates to a backlight unit for use in a display device. The backlight unit includes a circuit board, at least one light-emitting diode chip mounted on the circuit board, a plurality of reflection members arranged on the upper part of the light-emitting diode chip, and a light diffusing member. The light diffusing member has an incident surface on which light enters and an emitting surface from which light is emitted. The light diffusing member is arranged on the upper part of the circuit board. The plurality of reflection members are stacked on each other and reflect a part of light emitted from the upper surface of the light-emitting diode chip.
    Type: Grant
    Filed: March 6, 2023
    Date of Patent: May 28, 2024
    Assignee: SEOUL SEMICONDUCTOR CO., LTD.
    Inventor: Chung Hoon Lee
  • Patent number: 11978760
    Abstract: A display module is disclosed. The display module includes a substrate, a plurality of micro light-emitting diodes (micro-LEDs) disposed on the substrate and configured to radiate light, a reflective layer surrounding a lateral surface of each of the plurality of micro-LEDs, and a light blocking layer disposed on the reflective layer.
    Type: Grant
    Filed: November 29, 2021
    Date of Patent: May 7, 2024
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jinhyun Cho, Heungbom Kim, Hojin Yu, Wonyong Lee, Hyounggil Choi
  • Patent number: 11967803
    Abstract: A light emitting module includes: a first light emitting device including: a first package, a plurality of first semiconductor laser elements mounted in the first package, and a first lens member having lens portions, a number of the lens portion is the same as a number of the first semiconductor laser elements; and a second light emitting device including: a second package, a plurality of second semiconductor laser elements mounted in the second package, wherein a quantity of the second semiconductor laser elements is fewer than a quantity of the first semiconductor laser elements, and a second lens member which is structured the same as the first lens member; and one or more mounting substrates in which the first light emitting device and the second light emitting device are mounted.
    Type: Grant
    Filed: November 14, 2022
    Date of Patent: April 23, 2024
    Assignee: NICHIA CORPORATION
    Inventors: Kazuma Kozuru, Takuya Hashimoto
  • Patent number: 11953779
    Abstract: The present disclosure relates to a backlight module, a method for designing the same, and a display device. The backlight module includes: a first substrate; a plurality of LED chips on the first substrate; and a light control structure on the first substrate. The backlight module includes a plurality of light control region groups in one-to-one correspondence with the plurality of light-emitting diode chips, each light control region group includes at least a first light control region and a second light control region. The light control structure includes a plurality of light control substructure groups respectively located in the plurality of light control region groups. Each light control substructure group includes at least a first light control substructure in the first light control region and a second light control substructure in the second light control region.
    Type: Grant
    Filed: June 8, 2021
    Date of Patent: April 9, 2024
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xiaoxin Song, Feng Zhang, Wenqu Liu, Zhijun Lv, Liwen Dong, Zhao Cui, Detian Meng, Libo Wang, Dongfei Hou, Qi Yao, Xue Dong
  • Patent number: 11952521
    Abstract: A process for preparing a Mn+4 doped phosphor of formula I Ax[MFy]:Mn+4??I includes combining a first solution comprising a source of A and a second solution comprising H2MF6 in the presence of a source of Mn, to form the Mn+4 doped phosphor; wherein A is Li, Na, K, Rb, Cs, or a combination thereof; M is Si, Ge, Sn, Ti, Zr, Al, Ga, In, Sc, Y, La, Nb, Ta, Bi, Gd, or a combination thereof; x is the absolute value of the charge of the [MFy] ion; y is 5, 6 or 7; and wherein a value of a Hammett acidity function of the first solution is at least ?0.9. Particles produced by the process may have a particle size distribution with a D50 particle size of less than 10 ?m.
    Type: Grant
    Filed: November 2, 2021
    Date of Patent: April 9, 2024
    Assignee: CURRENT LIGHTING SOLUTIONS, LLC
    Inventors: James Edward Murphy, Srinivas Prasad Sista, Samuel Joseph Camardello
  • Patent number: 11919393
    Abstract: A display assembly for inducing turbulent flow and integrating an electric vehicle charger. A first and second subassembly are connected to a structural framework, each including a cover, an electronic display layer located behind the cover, a rear panel located behind the electronic display layer, and a fan assembly located at a rear surface of the rear panel. The electric vehicle charger is also connected to the structural framework.
    Type: Grant
    Filed: October 22, 2021
    Date of Patent: March 5, 2024
    Assignee: Manufacturing Resources International, Inc.
    Inventors: William Dunn, Marcos Diaz, Mike Brown, Kevin O'Connor, Alex Moreau
  • Patent number: 11914247
    Abstract: A backlight module includes a substrate and light source assemblies. The substrate has a plurality of light emitting regions, and the plurality of light emitting regions are arranged in an array. A plurality of light source assemblies are disposed in the plurality of light emitting regions in a one-to-one correspondence. Each light source assembly includes a plurality of light source members arranged in an array. Each light source member includes a light emitting unit, and a reflective film configured to split light emitted by the light emitting unit. When the reflective film is disposed, the following condition needs to be met: A proportion of light split by the reflective film towards a center of the light emitting region gradually increases in a direction from the center to an edge of the light emitting region in which the light source member is located.
    Type: Grant
    Filed: May 26, 2023
    Date of Patent: February 27, 2024
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Shihong Ouyang, Yiwen Chang
  • Patent number: 11879633
    Abstract: A display device and its back light module and support column are disclosed. A display device includes a display panel and a back light module. The back light module includes a bottom casing, a plurality of light-emitting components located within the bottom casing and a plurality of support columns located within the bottom casing. Each support column is positioned between adjacent ones of the light-emitting components. Each support column includes a tapered member and a plurality of light-guide members. The tapered member includes at least two opposite surfaces, and the light-guide members are arranged on at least one of the two opposite surfaces, and each light-guide member protrudes from a corresponding one of the two opposite surfaces.
    Type: Grant
    Filed: March 29, 2023
    Date of Patent: January 23, 2024
    Assignee: AmTRAN Technology Co., Ltd.
    Inventor: Kai-Di Lo
  • Patent number: 11852857
    Abstract: The purpose of the present invention is to realize a display device of high definition and high contrast by applying an accurate local dimming. The structure of the invention is as follows. A display device including: a display panel and a back light; in which the back light includes a light source and optical sheet group; the light source includes the light source substrate and LEDs disposed on the light source substrate; the light source is divided into segments in a plan view; at least one of the LEDs is disposed in a segment; the light source substrate, except the LEDs, is covered by a protective film; the segment is partitioned as by wall with the partition plate made of resin; the partition plate is disposed on the protective film.
    Type: Grant
    Filed: October 19, 2021
    Date of Patent: December 26, 2023
    Assignee: Japan Display Inc.
    Inventor: Takashi Ota
  • Patent number: 11829034
    Abstract: An encapsulant sheet suitable for encapsulating a light-emitting element in, for example, a self-luminous display or for direct backlights. The encapsulant sheet is a single-layer or multi-layer resin sheet that includes an adhesive layer exposed at a topmost surface. The Vicat softening point is greater than 60° C. and no higher than 100° C. The melt viscosity of the encapsulant sheet, at a shear velocity of 2.43×10 sec?1 and measured at a temperature of 120° C. is at least 5.0×104 poise and no more than 1.0×105 poise. The adhesive layer contains a polyolefin and a silane component, and a content of the silane component relative to the resin component of the adhesive layer is at least 0.03% by mass and less than 10% by mass.
    Type: Grant
    Filed: February 10, 2023
    Date of Patent: November 28, 2023
    Assignee: DAI NIPPON PRINTING CO., LTD.
    Inventors: Atsuo Tsuzuki, Keita Arihara
  • Patent number: 11828975
    Abstract: A lighting device capable of maintaining high efficiency while reducing blue light. The lighting device includes: a first light source; and a second light source having lower light efficiency than the first light source and having a lower light intensity than the first light source in a blue light wavelength region, in which power is supplied to the first light source and the second light source so that a ratio of power consumption of the first light source to power consumption of the second light source becomes 1:n, and n is greater than 1.
    Type: Grant
    Filed: November 2, 2022
    Date of Patent: November 28, 2023
    Assignee: SCL. , LTD
    Inventor: Jae Jin Yun
  • Patent number: 11821622
    Abstract: A planar light source includes a light guide member having a through hole, a light source, a first light adjusting member, a second light adjusting member, and a light transmissive member. The first light adjusting member having reflectivity and transmissivity with respect to light from the light source is disposed on or above an upper face of the light source in the through hole. The second light adjusting member having reflectivity and transmissivity with respect to the light from the light source is disposed above and apart from the first light adjusting member. The first light transmissive member having a higher transmissivity with respect to the light from the light source than the transmissivities of the first and second light adjusting members is disposed between the first light adjusting member and the second light adjusting member, and between a lateral face of the light source and the light guide member.
    Type: Grant
    Filed: November 18, 2022
    Date of Patent: November 21, 2023
    Assignee: NICHIA CORPORATION
    Inventors: Takuya Nakabayashi, Toru Hashimoto
  • Patent number: 11802677
    Abstract: The present invention provides a backlight structure and a display device. The backlight structure includes a backplane and backlight sources, and the backlight sources are arranged on the backplane. The backlight structure also includes: an anti-reflection reflective composite structure, which is located on a side of the backplane. The anti-reflection reflective composite structure includes an anti-reflection film and reflection parts, and the reflection parts are formed on a surface of the anti-reflection film facing the backlight sources. The greater a distance between a certain area on the anti-reflection film and a corresponding one of the backlight sources, the smaller a distribution density of the reflection parts located on the area.
    Type: Grant
    Filed: April 13, 2022
    Date of Patent: October 31, 2023
    Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD
    Inventor: Yuxiu Zhang
  • Patent number: 11774797
    Abstract: A backlight source includes light bars, adapter plate(s) and connection structures. Each light bar includes light-emitting group(s) and external connection unit(s). Each external connection unit is electrically connected to at least one light-emitting group and included at least one first electrode pair. Each adapter plate includes adapter circuits, each adapter circuit includes adapter units, each adapter unit includes at least one second electrode pair. Ends of each connection structure are electrically connected to one external connection unit and one adapter unit. All second electrode pairs of adapter units of a same adapter circuit are classified into at least one group, each group includes second electrode pairs electrically connected in series. In light-emitting groups electrically connected to adapter units of the same adapter circuit, light-emitting groups electrically connected second electrode pairs in a same group are connected in series to form a dimming region.
    Type: Grant
    Filed: February 4, 2021
    Date of Patent: October 3, 2023
    Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Guangyun Tong, Shixin Geng, Lijin Zhao, Tengfei Wang, Jiangfeng Zhang, Xu Chen, Zhuolong Li, Yu Zhang
  • Patent number: 11769786
    Abstract: An LED display screen and a manufacturing method therefor. The method comprises: presetting a temporary jig consisting of a first substrate (1) having a plurality of placement grooves, and a cover plate (3), and alternately placing R, G, and B-color LEDs in the placement grooves (2) by means of placement groove inlets (4); attaching a side cover to the temporary jig, and replacing the cover plate with an LED substrate and attaching the LEDs to the LED substrate; removing the first substrate and the side cover and sealing the LED substrate, and connecting a circuit board to the LED substrate, so as to obtain the LED display screen.
    Type: Grant
    Filed: July 23, 2019
    Date of Patent: September 26, 2023
    Assignee: Shenzhen TCL New Technology Co., Ltd.
    Inventors: Jianyuan Lin, Chonghui Luo
  • Patent number: 11762231
    Abstract: A display assembly for inducing turbulent flow includes electronic display subassemblies attached to a structural framework, each including an illumination device for providing illumination to an electronic display layer when powered, a cover forward of said electronic display layer, and a closed loop fan unit located at a first side of the respective one of said electronic display subassemblies. A rear passageway is positioned between the electronic display subassemblies. A closed loop airflow pathway for circulating gas extends through each of the electronic display subassemblies and includes the rear passageway.
    Type: Grant
    Filed: August 23, 2021
    Date of Patent: September 19, 2023
    Assignee: Manufacturing Resources International, Inc.
    Inventors: William Dunn, Marcos Diaz, Mike Brown, Kevin O'Connor, Alex Moreau
  • Patent number: 11760253
    Abstract: A lighting device for a motor vehicle, wherein the lighting device comprises a printed circuit board having a plurality of light-emitting diodes arranged thereon, an optical disk and a reflector element, wherein the reflector element is arranged between the circuit board and the optical disk, wherein the reflector element has a plurality of segments into which the reflector element is divided, wherein each light-emitting diode is assigned a segment so that light emitted from the LEDs is reflected at the reflector element and passes through the optical disk.
    Type: Grant
    Filed: November 15, 2022
    Date of Patent: September 19, 2023
    Assignee: Hella GmbH & Co. KGaA
    Inventor: Martin Muegge
  • Patent number: 11719977
    Abstract: A light reflecting structure, a backlight module, and a display device are provided. The light reflecting structure is configured to reflect light emitted from plural light emitting units. The light reflecting structure includes a bottom portion and plural sidewall portions. The sidewall portions are erected on the bottom portion. The sidewall portions respectively and correspondingly surround the light-emitting units, and the light emitted from each of the light-emitting units can be directed to a light reflecting surface corresponding to each of the sidewall portions to be reflected outward. A distance P is defined between any two adjacent sidewall portions, and each of the sidewall portions has a height H1. The distance P and the height H1 satisfy a first inequality, and the first inequality is H1<P/2×tan ?. ? represents a complementary angle of a half light-intensity angle of each of the light-emitting units.
    Type: Grant
    Filed: January 11, 2022
    Date of Patent: August 8, 2023
    Assignees: Radiant(Guangzhou) Opto-Electronics Co., Ltd, Radiant Opto-Electronics Corporation
    Inventors: Hui-Yu Huang, Hsiu-Yi Lai, Shih-Cheng Hsiao, Shu-An Tsai, Pei-Ling Kao, I-Cheng Liu
  • Patent number: 11714303
    Abstract: A display device is disclosed, which includes a display screen and a dimming screen which are arranged in a stacked manner, a backlight module on a side of the dimming screen away from the display screen, and a circuit board module on a side of the backlight module away from the dimming screen. The circuit board module includes a first control circuit board on the side of the backlight module away from the dimming screen and a second control circuit board on a side of the first control circuit board away from the backlight module, the first control circuit board is electrically connected with the dimming screen through a first Chip On Film and the second control circuit board is electrically connected with the display screen through a second Chip On Film. The circuit board module further includes a first support frame and a second support frame.
    Type: Grant
    Filed: October 27, 2021
    Date of Patent: August 1, 2023
    Assignees: Beijing BOE Display Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Zhuolong Li, Yu Zhang, Guangyun Tong, Liang Bo, Miao Liu, Xuefei Qin
  • Patent number: 11709309
    Abstract: An edge-lit light source includes one or at least two light guide layers arranged in a stack and one or more light-emitting elements. Of one or more light guide layers of the one or at least two light guide layers, side surfaces of each light guide layer includes a light incident surface and a light exit surface, and the light guide layer includes a bending region located between the light incident surface and the light exit surface. A light-emitting surface of each light-emitting element faces a light incident surface of at least one light guide layer of the one or more light guide layers.
    Type: Grant
    Filed: July 5, 2021
    Date of Patent: July 25, 2023
    Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Fei Liang, Xiuyun Chen, Lingyu Sun, Jingjun Du, Peng Zhong, Tingxiu Hou, Jian Zhao
  • Patent number: 11656498
    Abstract: Assemblies for enhancing the optical quality of electronic images displayed at an electronic display layer are provided. An optical component is located adjacent to the electronic display layer within a housing for the electronic display layer and the optical component. At least one shock-absorbing subassembly is attached to a location along the housing and to said optical component.
    Type: Grant
    Filed: January 28, 2022
    Date of Patent: May 23, 2023
    Assignee: Manufacturing Resources International, Inc.
    Inventors: Mike Brown, Michael LeCave
  • Patent number: 11649944
    Abstract: A lighting device (1) comprising a light generating element (2; 3), and a micro-lens (4) comprising a focal plane (Fp), wherein the light generating element (2; 3) comprises a first light generating component (2) and a second light generating component (3), wherein the first light generating component (2) comprises a light emitting surface (28) adapted for providing a diffuse light output component, wherein the second light generating component (3) comprises at least one array of light sources (3) adapted for providing a directional light output component, wherein the light generating element (2; 3) is arranged to emit a light output towards the micro-lens array (4), the light output being formed by a superposition of the diffuse light output component and the directional light N output component, and wherein the array of the light sources (3) is located in the focal plane (Fp) of the micro-lens array (4).
    Type: Grant
    Filed: February 4, 2020
    Date of Patent: May 16, 2023
    Assignee: SIGNIFY HOLDING B.V.
    Inventors: Hugo Johan Cornelissen, Olexandr Valentynovych Vdovin, Ludovicus Johannes Lambertus Haenen, Norbertus Antonius Maria Sweegers, Marc Andre De Samber, Jochen Renaat Van Gheluwe
  • Patent number: 11649947
    Abstract: A light emitting device includes: a base; a light emitting element; a light reflective film located on an upper surface of the light emitting element; and a encapsulant. A ratio of a maximum width (Wmax) of the encapsulant with respect to a maximum width of the light emitting element, in a side view, is 2 or more. An outer shape of a part of the encapsulant located within a range of elevation angles that is in a range of 10° to 50° from a center of a mounting region at an upper surface of the base on which the light emitting element is mounted is formed to have a curved surface. A ratio (r/Wmax) of a radius of curvature (r) of the curved surface with respect to the maximum width (Wmax) of the encapsulant, in a side view, is in a range of 0.25 to 0.50.
    Type: Grant
    Filed: June 21, 2021
    Date of Patent: May 16, 2023
    Assignee: NICHIA CORPORATION
    Inventors: Yuichi Yamada, Motokazu Yamada
  • Patent number: 11592158
    Abstract: The present disclosure discloses a lighting arrangement with optical composite that provides, when in operation, more uniform angular light distribution emissions into an environment. Lighting arrangements employing the novel optical composite in conjunction with LED light sources provide direct and indirect illumination with more uniform angular light distribution emissions into application environments. An optically coupled opaque layer suppresses internal reflections of ambient light to improve visual appearance of the optical composite by reducing peak brightness and brightness non-uniformity. In specific embodiments, low visibility matte appearances are achieved that are aesthetically desirable in the “off” (unlit) state. The present disclosure provides a solution to problems of non-uniform angular distribution of light causing visual discomfort and spatial discontinuity in output.
    Type: Grant
    Filed: April 23, 2020
    Date of Patent: February 28, 2023
    Assignee: Fusion Optix, Inc.
    Inventors: Terence Yeo, John Montminy, Michael Demas, Lee Mantha, Timothy Kelly
  • Patent number: 11584228
    Abstract: A modular display assembly that can easily be installed in a vehicle interior part. The modular display assembly includes a carrier panel having an outer frame and a recessed display region, a display panel situated in the recessed display region of the carrier panel, a diffuser layer that at least partially covers the recessed display region at a location spaced from the display panel to thereby create an optical transmission layer between the display panel and the diffuser layer, and a surface panel that at least partially covers the diffuser layer. The surface panel at least partially rests against the outer frame of the carrier panel.
    Type: Grant
    Filed: April 29, 2020
    Date of Patent: February 21, 2023
    Assignee: Faurecia Interior Systems, Inc.
    Inventors: Davide Di Censo, Cedric Ketels, Thomas Dessapt
  • Patent number: 11536439
    Abstract: A planar light source includes a light guide member having a through hole, a light source, a first light adjusting member, a second light adjusting member, and a light transmissive member. The first light adjusting member having reflectivity and transmissivity with respect to light from the light source is disposed on or above an upper face of the light source in the through hole. The second light adjusting member having reflectivity and transmissivity with respect to the light from the light source is disposed above and apart from the first light adjusting member. The first light transmissive member having a higher transmissivity with respect to the light from the light source than the transmissivities of the first and second light adjusting members is disposed between the first light adjusting member and the second light adjusting member, and between a lateral face of the light source and the light guide member.
    Type: Grant
    Filed: January 31, 2021
    Date of Patent: December 27, 2022
    Assignee: NICHIA CORPORATION
    Inventors: Takuya Nakabayashi, Toru Hashimoto
  • Patent number: 11531155
    Abstract: A backlight module includes a case body, supporting structures, light-emitting elements, and an optical module. The case body includes a first side wall and a second side wall opposite to the first side wall. Each of the support structures includes two supporting members and a bearing member. Two supporting members are respectively disposed on the first side wall and the second side wall. Each of the supporting member includes a fitting portion, an extending portion, and a bending portion. The fitting portion is fixed to the first side wall and the second side wall. The bearing member is disposed between the two supporting members. The light-emitting elements are respectively disposed on the bearing surface of the bearing member of the corresponding supporting structures. The optical module is disposed on the extending surface of the extending portion of each of the supporting structures. A display device is also provided.
    Type: Grant
    Filed: July 12, 2022
    Date of Patent: December 20, 2022
    Assignee: AUO DISPLAY PLUS CORPORATION
    Inventors: Chih-Cheng Huang, Hong-Ming Chen, Ren-Wei Huang
  • Patent number: 11519584
    Abstract: A lighting apparatus includes a light source module, a light passing cover, a prism plate and a surface rim. The light source module includes a light source plate and multiple LED modules mounted on the light source plate. The light passing cover has a first side facing to the multiple LED modules for receiving a light from the multiple LED modules. The prism plate is disposed with more than 50 prism units for diffusing the light passing through the light passing cover from a second side of the light passing cover. The surface rim has a light opening for the light diffused by the prism units to escape from the lighting apparatus.
    Type: Grant
    Filed: November 26, 2020
    Date of Patent: December 6, 2022
    Assignee: XIAMEN LEEDARSON LIGHTING CO., LTD
    Inventors: Shouqiang Hou, Zhiguo Lin, Xiaoliang Wen
  • Patent number: 11513390
    Abstract: A display device including a lower cover; a circuit substrate on the lower cover; a plurality of light sources disposed on the circuit substrate; a reflection layer disposed on the lower cover; a light regulating pattern disposed close to an edge of the reflection layer; and an optical sheet disposed on the light sources. Further, a width of the light regulating pattern changes along the edge of the reflection layer.
    Type: Grant
    Filed: January 6, 2022
    Date of Patent: November 29, 2022
    Assignee: LG ELECTRONICS INC.
    Inventors: Yongjin Kim, Munheon Hong, Chilkeun Park, Sangcheon Kim, Mangeun Kim
  • Patent number: 11513278
    Abstract: A lighting device includes a plurality of first lighting units emitting a first output light. Each of the first lighting units includes a first light source, a first reflective layer, and a first light converting structure. The first light source is configured to provide the first output light. The first reflective layer is configured to reflect the first output light. The first light converting structure is configured to convert the first output light. The first output light has a sub peak between 400 nm and 500 nm and a main peak between 590 nm and 780 nm, and a normal intensity of the sub peak is greater than a tilt intensity of the sub peak. The normal intensity is measured along a normal direction, the tilt intensity is measured along a tilt direction, and the normal direction is different from the tilt direction.
    Type: Grant
    Filed: August 25, 2021
    Date of Patent: November 29, 2022
    Assignee: InnoLux Corporation
    Inventors: Hsiao-Lang Lin, Tsung-Han Tsai
  • Patent number: 11508699
    Abstract: A display panel and a pixel structure are provided. The pixel structure includes a substrate, a micro light emitting diode (micro LED or ?LED), a sidewall structure, a filling layer, and a reflective layer. The substrate has a bearing surface, and the micro LED is disposed on the bearing surface directly or indirectly. The sidewall structure is disposed on the bearing surface and defines at least one accommodation cavity to accommodate the micro LED. The filling layer is filled in the accommodation cavity and surrounds the micro LED. The reflective layer covers a top surface of the filling layer and has a plurality of light-transmissible windows. The micro LED forms, in a vertical projection direction, a vertical projection region in an overlapping region on the reflective layer. Among the light-transmissible windows, those having longer distances to the vertical projection region have larger areas.
    Type: Grant
    Filed: October 18, 2019
    Date of Patent: November 22, 2022
    Assignee: AU OPTRONICS CORPORATION
    Inventors: Pin-Miao Liu, Chen-Chang Chen, Wen-Wei Yang
  • Patent number: 11506827
    Abstract: The backlight module includes the following units. Multiple first light emitting units are disposed on a top surface of a transparent substrate. A beam angle of the first light emitting units is greater than or equal to 30 degrees and less than or equal to 45 degrees. Multiple second light emitting units and a light guide plate are disposed on a bottom surface of the transparent substrate. Each second light emitting unit is disposed in a respective hole of the light guide plate. A light intensity of the first light emitting units in a first mode is smaller than that in a second mode. A light intensity of the second light emitting units in the first mode is greater than that in the second mode. In this way, the purpose of privacy protection can be achieved.
    Type: Grant
    Filed: May 25, 2022
    Date of Patent: November 22, 2022
    Assignee: HannStar Display Corporation
    Inventors: Chen-Hao Su, Chia-Feng Teng, Chin-Yung Liu
  • Patent number: 11480725
    Abstract: A planar light source includes: a light guide plate including: a first principal face, a second principal face located opposite the first principal face, and a plurality of through holes that are open at the first principal face and the second principal face; a plurality of light sources, wherein at least one of the light sources is located in the through holes of the light guide plate; a wiring substrate on which the plurality of light sources are located; a first light transmissive member located in a first of the through holes so as to cover at least a portion of a lateral face of the at least one light source located in the first through hole; and a second light transmissive member located in the first through hole so as to cover at least an upper face of the first light transmissive member.
    Type: Grant
    Filed: June 3, 2021
    Date of Patent: October 25, 2022
    Assignee: NICHIA CORPORATION
    Inventor: Daisuke Kasai
  • Patent number: 11476397
    Abstract: A display device according to an exemplary embodiment of the present disclosure comprises an insulation layer on a substrate and having a groove concave in a direction toward the substrate; a first reflective layer on at least a portion of the insulation layer; and a display element layer on the insulation layer and the first reflective layer, the display element layer including a light emitting element overlapping at least a portion of the groove.
    Type: Grant
    Filed: November 3, 2020
    Date of Patent: October 18, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Eui Suk Jung, Tae Gyun Kim, Jun Hong Park, Jun Chun, Hyun Young Jung
  • Patent number: 11414596
    Abstract: Provided is a fluoride fluorescent material having high luminance. The fluoride fluorescent material has a composition containing Mn, A that is at least one element or ion selected from the group consisting of alkali metal elements and NH4+, at least one element M selected from the group consisting of Group-4 elements and Group-14 elements, and F; and contains spherical fluoride particles.
    Type: Grant
    Filed: April 17, 2020
    Date of Patent: August 16, 2022
    Assignee: NICHIA CORPORATION
    Inventor: Tomokazu Yoshida
  • Patent number: 11362135
    Abstract: A light emitting element array includes a single semiconductor substrate, a plurality of semiconductor elements, which are formed on the single semiconductor substrate, and each of the semiconductor elements including a first distributed Bragg-reflector, an active layer formed over the first distributed Bragg-reflector, and a second distributed Bragg-reflector formed over the active layer. The array includes an electrode pad formed over the second distributed Bragg-reflector and a wiring formed at least partly over the second distributed Bragg-reflector and extending from the electrode pad toward the semiconductor elements. The semiconductor elements include a first semiconductor element, configured to emit laser light, and a second semiconductor element configured not to emit laser light and disposed at a position which is shorter distance along the wiring from the electrode pad than a distance along the wiring from the electrode pad to a position of the first semiconductor element.
    Type: Grant
    Filed: August 27, 2019
    Date of Patent: June 14, 2022
    Assignee: FUJIFILM Business Innovation Corp.
    Inventors: Junichiro Hayakawa, Akemi Murakami, Hideo Nakayama, Tsutomu Otsuka
  • Patent number: 11360350
    Abstract: When at least one scope of 0.5 mm square or more of a surface of an optical sheet having the unevenness is measured, height data of each of a plurality of pixels of an image obtained is determined, an approximated surface is calculated, from the height data of each pixel, for a minute region of 100 ?m2 or less, and a calculation is repeatedly performed to obtain an inclination angle between: (i) a flat surface appearing after the unevenness is imaginarily removed and: (ii) the approximated surface, while two-dimensionally shifting the minute region at equal intervals along the flat surface by using at least one of the pixels as a unit to obtain a plurality of minute regions, a total area of some of the minute regions each having the inclination angle of 30° or more, accounts for 30% or more of a total area of all the minute regions.
    Type: Grant
    Filed: September 20, 2021
    Date of Patent: June 14, 2022
    Assignee: KEIWA INC.
    Inventors: Chengheng Tsai, Motohiko Okabe, Takahiro Tsuji, Masayuki Sukigara
  • Patent number: 11333926
    Abstract: The disclosure relates to the technical field of liquid crystal display, and discloses a backlight module and a display device. The backlight module includes a light guide plate and a plurality of light emitting diodes arranged in a first direction, where the light guide plate is provided with a first region and a second region along a second direction, and the first direction and the second direction intersect with each other; and dots of the first region include a plurality of isolated cluster structures, and a dot density between any two adjacent cluster structures is lower than a dot density of each of the cluster structures.
    Type: Grant
    Filed: October 12, 2021
    Date of Patent: May 17, 2022
    Assignees: Beijing BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Yaodong Wang, Qin Xin, Yangli Zheng, Xiaoping Zhang, Jian Ren, Luo Zhang, Siqi Yin, Fangyi Liu, Litao Fan, Zhenguo Zhou
  • Patent number: 11231153
    Abstract: A light fixture includes a housing that defines a housing chamber having a housing opening. The light fixture is configured to emit light through the housing opening. The light fixture also includes a waveguide supported within the housing chamber and over the housing opening. The light fixture may include a backing plate supported within the housing chamber and biasing the waveguide towards the housing opening. The light fixture may include a transition cover with a cover body extending from a first portion of the waveguide to the housing opening and a light dam extending from the cover body towards a second portion of the waveguide.
    Type: Grant
    Filed: July 22, 2020
    Date of Patent: January 25, 2022
    Assignee: ABU IP Holding LLC
    Inventors: John Sakmar, Luke J. Siefker, Adam Miller, Jeff C. Carpenter
  • Patent number: 11156860
    Abstract: A display panel includes: a first substrate having a display area and a non-display area outside the display area, the display area having an imaginary corner, the first substrate having a first corner corresponding to the imaginary corner; and a second substrate including a first portion opposite a main face of the first substrate and a second portion extending out of the first substrate, the second substrate having a second corner corresponding to the imaginary corner, wherein the first corner is either chamfered or rounded.
    Type: Grant
    Filed: March 19, 2021
    Date of Patent: October 26, 2021
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Yohsuke Fujikawa
  • Patent number: 11150513
    Abstract: Provided is a reflective diffusing lens which controls light emitted from a light emitting element according to an embodiment.
    Type: Grant
    Filed: July 30, 2020
    Date of Patent: October 19, 2021
    Assignee: Molex, LLC
    Inventors: Sung Kuk Cho, Byung Woo Lee, Young Jun Cho
  • Patent number: 11112646
    Abstract: A thin backlight module and a manufacturing method of the thin backlight module are provided. The thin backlight module includes a drive substrate, multiple light emitting sources, a fluorescence layer, and multiple particle micro-structures. The light emitting sources are arranged in an array on the drive substrate. The surface micro-structures are arranged on a surface of the fluorescence layer. Each surface micro-structure is arranged corresponding to each light emitting source. Each particle micro-structure is arranged corresponding to each surface micro-structure. Each particle micro-structure and each surface micro-structure together form a guiding layer for dispersing light from a corresponding one of the light emitting sources. Thereby, a smaller light mixing distance and an ultra-thin backlight module thickness are achieved.
    Type: Grant
    Filed: January 3, 2019
    Date of Patent: September 7, 2021
    Inventor: Guowei Zha
  • Patent number: 11112555
    Abstract: A light-emitting module includes a plurality of light guide plates, each of the plurality of light guide plates including a first surface, a side surface, and a second surface opposite to the first surface, the plurality of light guide plates being separated by a gap between the side surfaces; and n light-emitting devices (n being a natural number of 2 or more) provided at the second surface side of the light guide plate for each of the plurality of light guide plates. The n light-emitting devices are disposed respectively in n regions into which the light guide plate is subdivided when viewed from the first surface side. A light-emitting device of the plurality of light guide plates disposed in a region of the n regions adjacent to the gap is shifted toward the gap from a center of the region adjacent to the gap.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: September 7, 2021
    Assignee: NICHIA CORPORATION
    Inventor: Keiji Emura
  • Patent number: 11067250
    Abstract: A light emitting device includes: a base; a light emitting element; a light reflective film located on an upper surface of the light emitting element; and a encapsulant. A ratio of a maximum width (Wmax) of the encapsulant with respect to a maximum width of the light emitting element, in a side view, is 2 or more. An outer shape of a part of the encapsulant located within a range of elevation angles that is in a range of 10° to 50° from a center of a mounting region at an upper surface of the base on which the light emitting element is mounted is formed to have a curved surface. A ratio (r/Wmax) of a radius of curvature (r) of the curved surface with respect to the maximum width (Wmax) of the encapsulant, in a side view, is in a range of 0.25 to 0.50.
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: July 20, 2021
    Assignee: NICHIA CORPORATION
    Inventors: Yuichi Yamada, Motokazu Yamada
  • Patent number: 11067742
    Abstract: The present disclosure provides a backlight module and a display device, and relates to the field of display technology. The backlight module includes: a heat sink located above a backplane for dissipating heat generated by a light source; a reflective member disposed on a side of a light guide plate adjacent to the backplane; and one or more thermal buffer members disposed between the heat sink and the reflective member, wherein a thermal conductivity coefficient of each of the thermal buffer members in a direction perpendicular to a light exiting surface of the backlight module is less than that of the heat sink.
    Type: Grant
    Filed: November 8, 2018
    Date of Patent: July 20, 2021
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Yongda Ma, Yong Qiao, Xinyin Wu
  • Patent number: 11056412
    Abstract: A semiconductor package includes an encapsulated semiconductor device, a redistribution structure, and a protection layer. The encapsulated semiconductor device includes a semiconductor device and an encapsulating material encapsulating the semiconductor device. The redistribution structure is disposed on the encapsulated semiconductor device and includes a dielectric layer and a redistribution circuit layer electrically connected to the semiconductor device. The protection layer at least covers the dielectric layer, wherein an oxygen permeability or a water vapor permeability of the protection layer is substantially lower than an oxygen permeability or a vapor permeability of the dielectric layer.
    Type: Grant
    Filed: July 22, 2019
    Date of Patent: July 6, 2021
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Shih-Hao Tseng, Hung-Jui Kuo, Ming-Che Ho, Chia-Hung Liu
  • Patent number: 11021650
    Abstract: A composition including a plurality of quantum dots; a binder polymer; a thiol compound having at least two thiol groups; a polyvalent metal compound; a polymerizable monomer having a carbon-carbon double bond; a photoinitiator; and a solvent.
    Type: Grant
    Filed: August 9, 2017
    Date of Patent: June 1, 2021
    Assignees: SAMSUNG ELECTRONICS CO., LTD., SAMSUNG DISPLAY CO., LTD., SAMSUNG SDI CO., LTD.
    Inventors: Ha Il Kwon, Tae Gon Kim, Shang Hyeun Park, Eun Joo Jang, Shin Ae Jun, Garam Park
  • Patent number: 10988386
    Abstract: The subject matter described herein includes a method of separating a mixture of trivalent rare-earth elements, based on their reduction potential, and solubility in a divalent state. The method includes adding the mixture of trivalent rare-earth elements to a tetraborate salt with deionized water to form a salt mixture, grinding the salt mixture with boric acid to form a solid mixture, wetting the solid mixture with water to form a paste, heating the paste to form a resultant product, dissolving the resultant product, thereby creating a residual solid in aqueous solution, wherein the residual solid includes a second mixture of trivalent rare-earth elements, and the aqueous solution includes a substantially singular element of a divalent rare-earth element in an aqueous state, and removing the residual solid, thereby separating the divalent rare-earth element from the mixture of trivalent rare-earth elements.
    Type: Grant
    Filed: May 27, 2020
    Date of Patent: April 27, 2021
    Assignee: Winston-Salem State University
    Inventors: Nathan Aaron Stump, Jafar Gharavi Naeini