Multi-color Emission Patents (Class 257/89)
  • Patent number: 11948928
    Abstract: A display apparatus, including a circuit substrate, a driving unit and a light-emitting unit is provided. The driving unit is disposed on the circuit substrate. The light-emitting unit is disposed on the circuit substrate. A thickness of the driving unit is substantially the same as a thickness of the light-emitting unit.
    Type: Grant
    Filed: July 16, 2021
    Date of Patent: April 2, 2024
    Assignee: Au Optronics Corporation
    Inventors: Yang-En Wu, Shih-Hsiung Lin
  • Patent number: 11950481
    Abstract: A display panel and a display device are provided in the present disclosure. The display panel includes a substrate and an array layer disposed on a side of the substrate; a light-emitting layer, where the light-emitting layer is on a side of the array layer away from the substrate and includes a plurality of light-emitting units; and a color filter layer. The color filter layer includes a light-blocking portion and a plurality of color resist units; the plurality of color resist units is disposed corresponding to the plurality of light-emitting units; at least two color resist units of a same color have different orthographic projection shapes on a same first plane; a first plane at least includes one of a first sub-plane and a second sub-plane; the first sub-plane is a plane perpendicular to the substrate; and the second sub-plane is a plane in parallel with the substrate.
    Type: Grant
    Filed: June 15, 2021
    Date of Patent: April 2, 2024
    Assignee: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Liang Hu, Ai Xiao, Linshan Guo
  • Patent number: 11950375
    Abstract: A method of printing comprises providing a component source wafer comprising components, a transfer device, and a patterned substrate. The patterned substrate comprises substrate posts that extend from a surface of the patterned substrate. Components are picked up from the component source wafer by adhering the components to the transfer device. One or more of the picked-up components are printed to the patterned substrate by disposing each of the one or more picked-up components onto one of the substrate posts, thereby providing one or more printed components in a printed structure.
    Type: Grant
    Filed: April 30, 2021
    Date of Patent: April 2, 2024
    Assignee: X Display Company Technology Limited
    Inventors: David Gomez, Christopher Andrew Bower, Raja Fazan Gul, António José Marques Trindade, Ronald S. Cok
  • Patent number: 11950447
    Abstract: A novel light-emitting device with a microcavity structure which can improve the emission efficiency compared to the conventional one is provided. In a light-emitting device with a microcavity structure that emits light in a near-infrared range, reflectance of one or both of a first electrode (reflective electrode) and a second electrode (semi-transmissive and semi-reflective electrode) with respect to light in a near-infrared range (e.g., light with a wavelength of 850 nm) is higher than the reflectance thereof with respect to light in a visible light range (greater than or equal to 400 nm and less than 750 nm).
    Type: Grant
    Filed: November 27, 2019
    Date of Patent: April 2, 2024
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Takeyoshi Watabe, Airi Ueda, Nobuharu Ohsawa, Satoshi Seo
  • Patent number: 11943987
    Abstract: A color conversion substrate and a display device are provided. The color conversion substrate includes a base substrate, a first color filter and a second color filter disposed on a surface of the base substrate, a first partition layer disposed between the first color filter and the second color filter, a second partition layer disposed on the first partition layer, a first wavelength conversion pattern disposed on the first color filter and a second wavelength conversion pattern disposed on the second color filter, wherein the first partition layer includes a first lower surface disposed on the first color filter and a second lower surface disposed on the second color filter.
    Type: Grant
    Filed: June 11, 2020
    Date of Patent: March 26, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Gak Seok Lee, Byung Chul Kim, In Ok Kim, Jae Min Seong, In Seok Song, Keun Chan Oh, Ji Eun Jang, Chang Soon Jang, Sun Kyu Joo, Ha Lim Ji
  • Patent number: 11943988
    Abstract: A color filter unit and a display apparatus including the same is provided, wherein the color filter unit includes an upper substrate, a first-color color filter layer, a second-color color filter layer, and a third-color color filter layer on a first surface that is a lower surface of the upper substrate, a transparent layer on the first-color color filter layer and having one or more protrusions in a direction away from the first surface, a second color quantum dot layer on the second-color color filter layer, and a third color quantum dot layer on the third-color color filter layer.
    Type: Grant
    Filed: March 1, 2021
    Date of Patent: March 26, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jeaheon Ahn, Seongyeon Lee, Jeongki Kim
  • Patent number: 11935910
    Abstract: Provided is a semiconductor light-emitting device including a substrate, a first insulating layer disposed on an upper surface of the substrate, a plurality of light-emitting structures disposed on the first insulating layer and spaced apart from each other, each of the plurality of light-emitting structures including a first semiconductor layer, an active layer, and a second semiconductor layer, a plurality of optical layers each filling a groove that is formed at a certain depth in the second semiconductor layer, a plurality of first electrodes penetrating the substrate and electrically connected to the first semiconductor layer, a plurality of second insulating layers disposed on side surfaces of each of the plurality of light-emitting structures, respectively, and a second electrode connected to the plurality of light-emitting structures, the second electrode being disposed on an uppermost surface of the second semiconductor layer and each of the plurality of second insulating layers.
    Type: Grant
    Filed: September 22, 2020
    Date of Patent: March 19, 2024
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jongin Yang, Joosung Kim, Donggun Lee, Suhyun Jo
  • Patent number: 11930652
    Abstract: An organic light emitting display apparatus including a substrate including a plurality of pixel areas; a pixel electrode on the substrate; an opposite electrode on the pixel electrode, the opposite electrode transmitting light; an organic light emitting layer between the pixel electrode and the opposite electrode, the organic light emitting layer emitting a first light toward the opposite electrode; a light emitting layer on the opposite electrode, the light emitting layer absorbing a portion of the first light and emitting a second light; and a sealing layer on the light emitting layer, the sealing layer sealing the pixel electrode, the opposite electrode, the organic light emitting layer, and the light emitting layer.
    Type: Grant
    Filed: December 12, 2022
    Date of Patent: March 12, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Chi-O Cho, Byungchoon Yang, Young-Jun Seo, Won Sang Park
  • Patent number: 11929356
    Abstract: A method is provided for the selective harvest of microLED devices from a carrier substrate. Defect regions are predetermined that include a plurality of adjacent defective microLED devices on a carrier substrate. A solvent-resistant binding material is formed overlying the predetermined defect regions and exposed adhesive is dissolved with an adhesive dissolving solvent. Non-defective microLED devices located outside the predetermined defect regions are separated from the carrier substrate while adhesive attachment is maintained between the microLED devices inside the predetermined defect regions and the carrier substrate. Methods are also provided for the dispersal of microLED devices on an emissive display panel by initially optically measuring a suspension of microLEDs to determine suspension homogeneity and calculate the number of microLEDs per unit volume.
    Type: Grant
    Filed: February 3, 2022
    Date of Patent: March 12, 2024
    Assignee: eLux, Inc.
    Inventors: Kenji Sasaki, Kurt Ulmer, Paul J. Schuele, Jong-Jan Lee
  • Patent number: 11923348
    Abstract: A light emitting diode pixel for a display includes a first subpixel including a first LED sub-unit, a second subpixel including a second LED sub-unit, a third subpixel including a third LED sub-unit, and a bonding layer overlapping the first, second, and third subpixels, in which each of the first, second, and third LED sub-units includes a first type of semiconductor layer and a second type of semiconductor layer, each of the first, second, and third LED sub-units is disposed on a different plane, and light generated from the second subpixel is configured to be emitted to an outside of the light emitting diode pixel by passing through a lesser number of LED sub-units than light generated from the first subpixel and emitted to the outside.
    Type: Grant
    Filed: October 10, 2022
    Date of Patent: March 5, 2024
    Assignee: SEOUL VIOSYS CO., LTD.
    Inventors: Seong Gyu Jang, Ho Joon Lee, Jong Hyeon Chae, Chung Hoon Lee
  • Patent number: 11910688
    Abstract: An organic light emitting diode display substrate includes a light emitting unit layer, a first band gap layer and a color conversion layer. The first band gap layer and the color conversion layer are on a light exit path of the light emitting unit layer. The light emitting unit layer includes first, second and third light emitting units periodically arranged on a driving substrate and emitting light of a first color. The color conversion layer converts a part of the light of the first color into light of a second color and a third color. The first band gap layer is between the light emitting unit layer and the color conversion layer. The first band gap layer transmits the light of the first color in a light exit direction, and reflects the light of the second color and the light of the third color.
    Type: Grant
    Filed: May 11, 2022
    Date of Patent: February 20, 2024
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Guang Yan, Changyen Wu, Li Sun, Juanjuan You, Chengyuan Luo, Ling Wang, Dongfang Yang
  • Patent number: 11910669
    Abstract: An array substrate is provided. The array substrate includes a node connecting line in a same layer as a respective one of the plurality of voltage supply lines, connected to a first capacitor electrode through a first via, and connected to a semiconductor material layer through a second via; and an interference preventing block in a same layer as the second capacitor electrode. The respective one of the plurality of voltage supply lines is connected to the interference preventing block through a third via. The interference preventing block includes a first arm and a second arm. Along the first direction, a portion of the node connecting line at a position connecting to the semiconductor material layer through the second via is spaced apart from a first adjacent data line by the first arm, and is spaced apart from a second adjacent data line by the second arm.
    Type: Grant
    Filed: October 30, 2020
    Date of Patent: February 20, 2024
    Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Maoying Liao, Yang Zhou, Xin Zhang, Huijuan Yang
  • Patent number: 11903287
    Abstract: A light-emitting element includes: pixel electrodes provided for individual subpixels of at least three colors; a common electrode provided facing each of the pixel electrodes; and light-emitting layers of each color provided between the common electrode and, respectively, each of the pixel electrodes, wherein one of each of the pixel electrodes and the common electrode is a cathode electrode and the other is an anode electrode and among the light-emitting layers of the at least three colors, a light-emitting layer of a color having a largest electron affinity extends in a state of being layered between the cathode electrode and each light-emitting layer of the other colors as well.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: February 13, 2024
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Yasushi Asaoka, Tsuyoshi Kamada, Shigeru Aomori
  • Patent number: 11892733
    Abstract: Purpose is to realize a display device of high definition and high response speed. The structure is as follows. A liquid crystal display device including: scanning lines extending in a first direction and being arranged in a second direction, video signal lines extending in the second direction and being arranged in the first direction, and a pixel being surrounded by the scanning lines and the video signal lines, in which a pixel electrode is formed in the pixel, the pixel electrode includes a first portion including comb electrode, a second portion including contact portion to receive electrical signal, and a third portion, the third portion protrudes toward an adjacent pixel electrode compared with the first portion and the second portion, and a normal of a side toward the adjacent pixel electrode of the third portion intersects with the first direction and the second direction with an angle other than 0 and 90 degrees.
    Type: Grant
    Filed: February 23, 2023
    Date of Patent: February 6, 2024
    Assignee: JAPAN DISPLAY INC.
    Inventors: Masateru Morimoto, Satoru Kawasaki
  • Patent number: 11895863
    Abstract: A display panel, a manufacturing method and a display device are provided. The display panel includes a substrate having a display area and a non-display area; a planarization layer covering the display area and the non-display area of the substrate; an organic light emitting element located in the display area and located at a side of the planarization layer away from the substrate; an encapsulation structure including a first inorganic layer, an organic layer and a second inorganic layer which are sequentially stacked, where the first inorganic layer and the second inorganic layer extend into a non-display area, and the first inorganic layer is arranged close to the planarization layer; and/or, a part of the planarization layer located in the non-display area is provided with a groove, and the groove is filled with a flexible water-oxidation resistant material.
    Type: Grant
    Filed: September 27, 2021
    Date of Patent: February 6, 2024
    Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Heng Yang, Wei Li, Yanbo Zeng, Yinglong Huang
  • Patent number: 11894351
    Abstract: According to at least one aspect, a lighting device is provided. The lighting device comprises a circuit board; a light emitting diode (LED) array mounted to the circuit board and configured to emit broad spectrum light at any one of a plurality of different color correlated temperature (CCT) values within a range of CCT values, the LED array comprising a first LED configured to emit narrow spectrum light and a second LED that is different from the first LED and configured to emit broad spectrum light; and at least one elastomer encapsulating at least part of the circuit board and the LED array mounted to the circuit board.
    Type: Grant
    Filed: February 25, 2022
    Date of Patent: February 6, 2024
    Inventors: Noam Meir, Ariel Shochat
  • Patent number: 11889717
    Abstract: Various embodiments set forth light emission display elements, and display devices that include such display elements. In some embodiments, a display element includes an electroluminescent light source and a pair of reflective elements that form a resonant cavity for a particular range of wavelengths and/or a particular polarization of light. One or both of the reflective elements can include meta-reflectors, such as anisotropic meta-reflectors or chiral meta-reflectors. An optional waveplate can be placed between the reflective elements to adjust the polarization state of light emitted by the display element.
    Type: Grant
    Filed: December 22, 2021
    Date of Patent: January 30, 2024
    Assignee: META PLATFORMS TECHNOLOGIES, LLC
    Inventors: Zhimin Shi, Yuge Huang, Fenglin Peng, Anurag Tyagi
  • Patent number: 11877496
    Abstract: A display device includes a display panel, a plurality of first pixels disposed in a first region of the display panel, a plurality of second pixels disposed in a second region of the display panel adjacent to the first region, and a plurality of dummy pixels disposed in a boundary region of the display panel between the first region and the second region. Intervals between the second pixels and the dummy pixels are uniform along the boundary region.
    Type: Grant
    Filed: June 23, 2021
    Date of Patent: January 16, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Young-Soo Yoon, Yun-Kyeong In, Hyunji Cha
  • Patent number: 11876154
    Abstract: A light-emitting diode (LED) device includes a first epitaxial layered structure having an upper surface having different first and second regions, a second epitaxial layered structure spaced-apart disposed on the first epitaxial layered structure, a light conversion layer formed on the first region, a bonding unit disposed on the light conversion layer, the bonding unit and the light conversion layer interconnecting the first and second epitaxial layered structures, and an electrically conductive structure formed on the second region and electrically connects the first and second epitaxial layered structures. A method for manufacturing the LED device is also disclosed.
    Type: Grant
    Filed: February 20, 2020
    Date of Patent: January 16, 2024
    Assignee: Xiamen San'An Optoelectronics Co., Ltd.
    Inventors: Mingyang Li, Guanzhou Liu, Jingfeng Bi, Senlin Li, Minghui Song, Wenjun Chen
  • Patent number: 11877472
    Abstract: An organic light-emitting diode (OLED) display panel and a display device are provided. The OLED display panel includes a substrate, a driving circuit layer, a luminous functional layer, a first coupling layer, and a second coupling layer. The second coupling layer includes a first coupling portion, a second coupling portion, and a third coupling portion respectively corresponding to red, green, and blue pixels. A thickness of the first coupling portion is greater than or equal to a thickness of the second coupling portion, and greater than a thickness of the third coupling portion. The thickness of the second coupling portion is greater than or equal to the thickness of the third coupling portion.
    Type: Grant
    Filed: July 24, 2020
    Date of Patent: January 16, 2024
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Jiajia Sun
  • Patent number: 11870016
    Abstract: A light emitting device is adapted to realize white light and includes a first light emitting diode chip emitting light having a first peak wavelength in the range of 400 nm to 420 nm, a second light emitting diode chip emitting light having a second peak wavelength in the range of 420 nm to 440 nm, and a wavelength converter covering the first and second light emitting diode chips. The wavelength converter including a blue phosphor, a green phosphor, and a red phosphor. When a maximum value of a spectral power distribution of the light emitting device or a maximum of a reference spectral power distribution of black body radiation is 100%, a difference between the spectral power distribution of the light emitting device and the reference spectral power distribution is less than 20% at each wavelength in the wavelength range of 440 nm to 640 nm.
    Type: Grant
    Filed: December 1, 2020
    Date of Patent: January 9, 2024
    Assignee: Seoul Semiconductor Co., Ltd.
    Inventor: Bo Yong Han
  • Patent number: 11871636
    Abstract: A display device includes a substrate, and an array of pixels on the substrate, the array of the pixels including a first column in which first pixels emitting first color light and second pixels emitting second color light are alternately disposed in a first direction, and a second column adjacent to the first column. The second column includes third pixels that emit third color light and are disposed in the first direction. The second column includes groups each including two or more third pixels, and a first distance between adjacent third pixels included in a same group is less than a second distance between adjacent third pixels included in different groups.
    Type: Grant
    Filed: September 1, 2020
    Date of Patent: January 9, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sangshin Lee, Sanghoon Kim, Jongdae Lee, Sangmin Yi
  • Patent number: 11870018
    Abstract: A display panel including a wavelength conversion structure that includes a base structure including partition walls that define a first space and a second space, a first quantum dot composite disposed in the first space, and a second quantum dot composite disposed in the second space. The height of the partition wall is greater than or equal to about 5 micrometers and less than or equal to about 50 micrometers, and the first quantum dot composite provides a first top surface and the second quantum dot composite provides a second top surface. A production method for making the wavelength conversion structure uses a first ink composition that includes first quantum dots and a first matrix, and a second ink composition that includes second quantum dots and a second matrix.
    Type: Grant
    Filed: November 10, 2021
    Date of Patent: January 9, 2024
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Shang Hyeun Park, Deukseok Chung, Tae Gon Kim, Min Jong Bae, Shin Ae Jun
  • Patent number: 11864397
    Abstract: The present application provides a display panel and a display device. The display panel includes a first wiring layer connected between a first pixel driving circuit and a first light-emitting device; a signal wiring layer electrically connected to the first pixel driving circuit and partially overlapping the first wiring layer; and a capacitive barrier layer disposed between the first wiring layer and the signal wiring layer and including at least one organic insulating layer, so as to improve the display effect of the display light-transmitting area through the capacitive barrier layer.
    Type: Grant
    Filed: November 19, 2020
    Date of Patent: January 2, 2024
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Jia Zhang, Feifei Peng
  • Patent number: 11854472
    Abstract: A pixel driving circuit and a display panel are provided. The pixel driving circuit, including a first-color subpixel, a second-color subpixel, and a third-color subpixel, is configured to drive a pixel unit. The pixel driving circuit includes a first driving unit, a second driving unit, and a third driving unit. The first driving unit is configured to drive according to a first voltage signal the first-color subpixel. The second driving unit is configured to drive according to the first voltage signal the second-color subpixel. The third driving unit is configured to drive according to the first voltage signal the third-color subpixel. The first driving unit at least includes a first capacitor, the second driving unit at least includes a second capacitor, the third driving unit at least includes a third capacitor, and at least one of the first capacitor, the second capacitor, and the third capacitor has a different capacitance.
    Type: Grant
    Filed: December 29, 2022
    Date of Patent: December 26, 2023
    Assignees: CHUZHOU HKC OPTOELECTRONICS TECHNOLOGY CO., LTD., HKC CORPORATION LIMITED
    Inventors: Lizhi Zhang, Long Zhu, Baohong Kang
  • Patent number: 11855050
    Abstract: Provided is a micro-LED display, a micro-LED transferring substrate, and a method of transferring micro-LEDs using the micro-LED transferring substrate. The micro-LED includes a backplane substrate; and a plurality of sub-pixels provided on the backplane substrate, wherein at least one sub-pixel from among the plurality of sub-pixels includes a first micro-LED; and a second micro-LED different from the first micro-LED.
    Type: Grant
    Filed: April 16, 2021
    Date of Patent: December 26, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyunjoon Kim, Kyungwook Hwang, Joonyong Park, Seogwoo Hong, Junsik Hwang
  • Patent number: 11848313
    Abstract: Provided is a display module including a substrate including a mounting surface, a side surface, and a chamfer portion formed between the mounting surface and the side surface, a plurality of inorganic light emitting diodes mounted on the mounting surface and each including a pair of electrodes electrically connected to the substrate, a black matrix arranged between the plurality of inorganic light emitting diodes, and a cover bonded to the mounting surface and configured to cover the mounting surface, wherein the pair of electrodes are oriented in a direction opposite to a direction in which the plurality of inorganic light emitting diodes emits light, and the cover is provided to extend outward of the side surface in an extension direction of the mounting surface.
    Type: Grant
    Filed: December 28, 2020
    Date of Patent: December 19, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seonghwan Shin, Sungsoo Jung, Pilyong Oh, Kwangjae Lee, Jeongin Han
  • Patent number: 11848407
    Abstract: A display device includes a plurality of pixels on a substrate. Each of the pixels includes a first electrode and a second electrode spaced apart from each other on the substrate, and a plurality of light emitting elements, each including a first end portion connected to the first electrode and a second end portion connected to the second electrode. The first electrode includes a plurality of first holes adjacent to the first end portion of each of the light emitting elements.
    Type: Grant
    Filed: September 14, 2020
    Date of Patent: December 19, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Gwang Teak Lee, Seong Sik Choi
  • Patent number: 11837625
    Abstract: A display apparatus including a display substrate, light emitting devices disposed on the display substrate, circuit electrodes disposed between the light emitting devices and the display substrate, and a transparent layer covering the light emitting devices and the circuit electrodes, in which at least one of the light emitting devices includes a first LED sub-unit configured to emit light having a first wavelength, a second LED sub-unit adjacent to the first LED sub-unit and configured to emit light having a second wavelength, a third LED sub-unit adjacent to the second LED sub-unit and configured to emit light having a third wavelength, and a substrate disposed on the third LED sub-unit, in which a difference in refractive indices between the transparent layer and air is less than a difference in refractive indices between the substrate and a semiconductor layer of the third LED sub-unit.
    Type: Grant
    Filed: October 30, 2022
    Date of Patent: December 5, 2023
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Chung Hoon Lee, Dae Sung Cho
  • Patent number: 11837628
    Abstract: A display array including a semiconductor stacked layer, an insulating layer, a plurality of electrode pads, and a driving backplane is provided. The semiconductor stacked layer has a plurality of light emitting regions arranged along a reference plane. The insulating layer is disposed to an outer surface of the semiconductor stacked layer and contacts the semiconductor stacked layer. The insulating layer has a plurality of openings respectively corresponding to the plurality of light emitting regions. The electrode pads are disposed to the insulating layer and are respectively electrically connect the plurality of light emitting regions through the plurality of openings. The driving backplane is disposed to the semiconductor stacked layer and electrically connected to the plurality of electrode pads, wherein a light emitting material layer of the semiconductor stacked layer has consistency along an extension direction of the reference plane.
    Type: Grant
    Filed: July 27, 2021
    Date of Patent: December 5, 2023
    Assignee: Industrial Technology Research Institute
    Inventors: Ming-Hsien Wu, Chia-Hsin Chao, Yen-Hsiang Fang
  • Patent number: 11824144
    Abstract: A light emitting device is adapted to realize white light and includes a first light emitting diode chip emitting light having a first peak wavelength in the range of 400 nm to 420 nm, a second light emitting diode chip emitting light having a second peak wavelength in the range of 420 nm to 440 nm, and a wavelength converter covering the first and second light emitting diode chips. The wavelength converter including a blue phosphor, a green phosphor, and a red phosphor. When a maximum value of a spectral power distribution of the light emitting device or a maximum of a reference spectral power distribution of black body radiation is 100%, a difference between the spectral power distribution of the light emitting device and the reference spectral power distribution is less than 20% at each wavelength in the wavelength range of 440 nm to 640 nm.
    Type: Grant
    Filed: December 1, 2020
    Date of Patent: November 21, 2023
    Assignee: Seoul Semiconductor Co., Ltd.
    Inventor: Bo Yong Han
  • Patent number: 11825722
    Abstract: Display device has display region of pixels including first pixel arranged in central portion of the display region and second pixel arranged between the first pixel and the edge of the display region. Each pixel includes first and second light emitting elements. Color filter layer is arranged on the first and second light emitting elements. The first light emitting element includes first color filter, and opening of the first light emitting element is defined by the color filter layer. The second light emitting element includes second color filter and having spectral transmittance characteristic different from the first color filter. Ratio of size of the opening to size of light emitting region of the first light emitting element is smaller in the second pixel than in the first pixel.
    Type: Grant
    Filed: March 11, 2021
    Date of Patent: November 21, 2023
    Assignee: Canon Kabushiki Kaisha
    Inventor: Koji Ishizuya
  • Patent number: 11817040
    Abstract: A flat-panel display comprises a display substrate, an array of pixels distributed in rows and columns over the display substrate, the array having a column-control side, and column controller disposed on the column-control side of the array providing column data to the array of pixels through column-data lines. In some embodiments, rows of pixels in the array of pixels form row groups and each column of pixels in a row group receives column data through a separate column-data line. In some embodiments, each pixel in each column of pixels in the array of pixels is serially connected and each pixel in the array of pixels comprises a token-passing circuit for passing a token through the serially connected column of pixels.
    Type: Grant
    Filed: April 7, 2022
    Date of Patent: November 14, 2023
    Assignee: X Display Company Technology Limited
    Inventors: Ronald S. Cok, Christopher Andrew Bower
  • Patent number: 11817535
    Abstract: A LED structure includes a substrate, a plurality of LED units, a bonding layer and a metal contact. The substrate includes a driving circuit, and a plurality of LED units is formed on the substrate. The bonding layer is formed between the substrate and the plurality of LED units, and the metal contact is formed in the bonding layer beneath each LED unit to electrically connect each LED unit with a contact pad of the driving circuit. A first sectional area of the metal contact is smaller than a second sectional area of each LED unit.
    Type: Grant
    Filed: April 13, 2021
    Date of Patent: November 14, 2023
    Assignee: RAYSOLVE OPTOELECTRONICS (SUZHOU) COMPANY LIMITED
    Inventor: Wing Cheung Chong
  • Patent number: 11809040
    Abstract: A display device includes a display panel, a backlight unit, and a light conversion sheet between the display panel and the backlight unit. The backlight unit includes a substrate and light-emitting sections arranged on the substrate, one or more light sources are disposed in each of the light-emitting sections, the light conversion sheet includes first partition walls and light conversion sections arranged to correspond to the light-emitting sections, a first partition wall of the first partition walls is disposed between adjacent light conversion sections of the light conversion sections. Each of the light conversion sections includes first quantum dots emitting a first light and second quantum dots emitting a second light having a color different from a color of the first light, and the at least one light source provides light of a predetermined wavelength to the light conversion sheet.
    Type: Grant
    Filed: April 21, 2022
    Date of Patent: November 7, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yong Wook Kim, Soo Kyung Kwon, Jaeyong Lee
  • Patent number: 11812632
    Abstract: A display device includes a base, a light emitting element disposed on the base, a capping layer disposed on the light emitting element, a thin-film encapsulation layer which is disposed on the capping layer and includes an inorganic layer at the bottom, and a wavelength conversion pattern which is disposed on the thin-film encapsulation layer and overlaps the light emitting element. The capping layer includes a first sub-capping layer disposed on the light emitting element and a second sub-capping layer disposed between the first sub-capping layer and the inorganic layer, and a refractive index of the second sub-capping layer is greater than a refractive index of the inorganic layer and smaller than a refractive index of the first sub-capping layer.
    Type: Grant
    Filed: April 8, 2021
    Date of Patent: November 7, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Je Hong Choi, Jin Woo Park, Sung Ho Seo, Seung Wook Chang, Sang Woo Pyo
  • Patent number: 11804182
    Abstract: A first pixel electrode electrically connected to a first transistor, a second pixel electrode electrically connected to a second transistor, a first light-emitting layer formed over the first pixel electrode and overlapping the first pixel electrode, a second light-emitting layer formed over the second pixel electrode and overlapping the second pixel electrode are provided, the first light-emitting layer includes a quantum-dot light-emitting that emits light of a first color, and the second light-emitting layer includes an organic light-emitting layer that emits light of a second color different from the first color.
    Type: Grant
    Filed: January 27, 2020
    Date of Patent: October 31, 2023
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Masafumi Ueno, Naoki Shiobara
  • Patent number: 11804578
    Abstract: A micro light-emitting device includes a micro light-emitting diode and a light-emitting structure. The micro light-emitting diode includes a semiconductor light-emitting unit that emits an excitation light having a first wavelength. The light-emitting structure is disposed on the micro light-emitting diode, and is configured to be excited by the excitation light to emit an excited light having a second wavelength. The light-emitting structure is a multiple quantum well structure. A display including the micro light-emitting device is also disclosed.
    Type: Grant
    Filed: January 6, 2021
    Date of Patent: October 31, 2023
    Assignee: Xiamen San'An Optoelectronics Co., Ltd.
    Inventors: Chen-ke Hsu, Chia-en Lee, Chun-Yi Wu, Shaohua Huang
  • Patent number: 11798880
    Abstract: An electronic device and method of fabricating the same are provided herein. The electronic device includes a first main pad; a second main pad; a first repair line electrically connected to the first main pad; a second repair line electrically connected to the second main pad, wherein the first repair line and the second repair line forms a first weldable region; a first spare pad; a second spare pad; a connection line electrically connected to the second repair line, the first spare pad and the second spare pad; and a first electronic unit disposed on the first main pad and the second main pad.
    Type: Grant
    Filed: September 27, 2021
    Date of Patent: October 24, 2023
    Assignee: Innolux Corporation
    Inventors: Hirofumi Watsuda, Shu-Ming Kuo, Chun-Hsien Lin
  • Patent number: 11800768
    Abstract: A full-color light emitting diode (LED) display having an improved luminance is provided herein. More specifically, provided herein are a full-color LED display, in which an amount of light blocked by electrodes and not extracted is minimized and ultra-small LED devices are connected to ultra-small electrodes without defects such as electrical short circuits and the like, wherein the full-color LED display exhibits a further improved luminance when a direct current (DC) driving voltage is used and each pixel of the full-color LED display exhibits uniform luminance when the DC driving voltage is used, and a method of manufacturing the same.
    Type: Grant
    Filed: May 24, 2021
    Date of Patent: October 24, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Young Rag Do, Yun Jae Eo, Yeon Goog Sung
  • Patent number: 11799063
    Abstract: Discussed is a display apparatus including a wiring board having wiring electrodes; a conductive adhesive layer covering the wiring electrodes; a plurality of semiconductor light emitting devices coupled to the conductive adhesive layer and electrically connected to the wiring electrodes; and an insulating material disposed between the plurality of adhesive regions to fill between the plurality of semiconductor light emitting devices, wherein each electrode of the plurality of semiconductor light emitting devices includes a first conductive electrode, a first conductive semiconductor layer on the first conductive electrode, an active layer on the first conductive semiconductor layer, a second conductive semiconductor layer on the active layer, and a second conductive electrode on the second conductive semiconductor layer, and wherein the second conductive electrode is disposed on one surface of the second conductive semiconductor layer.
    Type: Grant
    Filed: October 26, 2021
    Date of Patent: October 24, 2023
    Assignee: LG ELECTRONICS INC.
    Inventors: Hwanjoon Choi, Kyoungtae Wi
  • Patent number: 11793035
    Abstract: The present disclosure provides a display panel, a display device including the display panel and a method of manufacturing the display panel. The display panel includes a substrate; a pixel-defining layer disposed on the substrate, wherein the pixel-defining layer defines a plurality of sub-pixel regions arranged in rows and columns; and an organic light emitting element disposed in at least one of the plurality of sub-pixel regions, wherein a side of the pixel-defining layer away from the substrate is provided with a groove, the groove has a depth less than a thickness of the pixel-defining layer and the groove is disposed between the organic light emitting elements that are adjacent to each other and emit light of different colors.
    Type: Grant
    Filed: May 16, 2022
    Date of Patent: October 17, 2023
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xianghua Nan, Qingyun Bai
  • Patent number: 11784461
    Abstract: A light emitting device includes first to third semiconductor laser elements. Each of the semiconductor laser elements includes at least two emitters, and configured to emit red-color light, green-color light, or blue-color light. The mount member includes first to third conduction parts, each including a plurality of metal films including mounting regions that are aligned in a predetermined direction. The first to third semiconductor laser elements are respectively mounted on the first to third conduction parts of the mount member in a junction-down configuration.
    Type: Grant
    Filed: March 17, 2022
    Date of Patent: October 10, 2023
    Assignee: NICHIA CORPORATION
    Inventors: Masatoshi Nakagaki, Soichiro Miura
  • Patent number: 11783785
    Abstract: A light emitting diode device is provided and includes a first light emitting diode(LED) package emitting light to generate a first brightness. The first LED package includes a first diode being driven in response to a pulse width modulation (PWM) current to generate a first portion of the first brightness and a second diode being driven in response to a first direct current (DC) current to generate a second portion of the first brightness. In a first operation mode of the LED device, the first diode and the second diode are enabled to make the first brightness to reach a first value. In a second operation mode, different from the first operation mode, of the LED device, the second diode is disabled to reduce the brightness from the first value to a second value.
    Type: Grant
    Filed: May 25, 2022
    Date of Patent: October 10, 2023
    Assignee: AmTRAN Technology Co., Ltd.
    Inventor: Hung-Ta Yu
  • Patent number: 11778885
    Abstract: A display apparatus includes: a first substrate that includes a display area that includes a plurality of pixels and a non-display area around the display area; a second substrate that faces the first substrate; a color conversion layer disposed on the second substrate and that corresponds to the display area; a color filter layer disposed between the second substrate and the color conversion layer; a dummy color conversion pattern disposed on the second substrate and that corresponds to the non-display area and that includes a same material as a portion of the color conversion layer; and a dummy color filter disposed between the second substrate and the dummy color conversion pattern.
    Type: Grant
    Filed: December 7, 2020
    Date of Patent: October 3, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jangil Kim, Jonghoon Kim, Myoungjong Lee, Seongyeon Lee
  • Patent number: 11778705
    Abstract: A lighting control system includes: a light fixture including: a first light emitting device configured to emit light having a first correlated color temperature of 3000 K or less in the CIE1931 color space chromaticity diagram, a second light emitting device configured to emit light having a second correlated color temperature equal to or higher than that of the first correlated color temperature, a third light emitting device configured to emit light having substantially effective emission wavelength in a 320 nm to 420 nm range, and an emission controller configured to cause the light fixture to irradiate illumination light by controlling irradiation percentages of the light emitted from the first, second, and third light emitting devices; and an information processing apparatus communicably connected to the light fixture and including a dimming controller configured to change the irradiation percentages.
    Type: Grant
    Filed: September 6, 2022
    Date of Patent: October 3, 2023
    Assignee: NICHIA CORPORATION
    Inventors: Kei Haraguchi, Kenji Asai, Munetake Fukunaga, Yasuo Fujikawa
  • Patent number: 11776990
    Abstract: A micro light-emitting diode display panel including first and second substrates, micro light-emitting diodes, a wavelength conversion layer, a light-shielding pattern layer, a light filter layer, and an air gap is provided. The micro light-emitting diodes are disposed on the first substrate and respectively located in a plurality of sub-pixel areas. The micro light-emitting diodes are adapted to emit a light beam. The wavelength conversion layer is overlapped with at least a portion of the micro light-emitting diodes. The light beam is used to excite the wavelength conversion layer to emit a converted light beam. The light filter layer is disposed between the wavelength conversion layer and the second substrate and overlapped with the micro light-emitting diodes. The air gap is disposed between any two adjacent ones of any one of the micro light-emitting diodes, the second substrate, the wavelength conversion layer, and the light filter layer.
    Type: Grant
    Filed: November 29, 2021
    Date of Patent: October 3, 2023
    Assignee: PlayNitride Display Co., Ltd.
    Inventors: Sheng-Yuan Sun, Po-Wei Chiu, Loganathan Murugan
  • Patent number: 11758760
    Abstract: An organic light-emitting display apparatus including; a first pixel electrode, a second pixel electrode, a third pixel electrode; a first lower functional layer, a second lower functional layer, and a third lower functional layer; a first organic emission layer for emitting a first color, a second organic emission layer for emitting a second color, and a third organic emission layer for emitting a third color; an opposite electrode; and a first upper functional layer, a second upper functional layer, and a third upper functional layer respectively disposed between the opposite electrode and the first organic emission layer, the second organic emission layer, and the third organic emission layer and each having a thickness that is equal to or greater than about 1300 ? and less than or equal to about 1800 ?.
    Type: Grant
    Filed: August 31, 2022
    Date of Patent: September 12, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sungwook Kim, Kyungsik Kim, Seulong Kim, Tsuyoshi Naijo, Sungsoo Bae, Dongchan Lee, Hyein Jeong, Hyewon Choi, Seungjin Chu, Jaeweon Hur
  • Patent number: 11756937
    Abstract: A display apparatus and a method of manufacturing the same. The display apparatus includes a circuit board; and a plurality of pixels formed on the circuit board, wherein at least one of a blue light emitting diode chip, a red light emitting diode part, and a green light emitting diode chip is disposed in each of the pixels, and the blue light emitting diode chip, the red light emitting diode part and the green light emitting diode chip are covered by a coupling structure.
    Type: Grant
    Filed: February 13, 2018
    Date of Patent: September 12, 2023
    Assignee: Seoul Semiconductor Co., Ltd.
    Inventor: Motonobu Takeya
  • Patent number: 11749181
    Abstract: This disclosure discloses a display including a first carrier, a second carrier, a light-emitting unit, a frame, and a protective layer. The first carrier includes a first electrode and a second electrode. The second carrier is arranged below the first carrier and includes a first connection pad and a second connection pad arranged on a side of the second carrier close to the first carrier. The light-emitting unit is arranged on the first carrier. The frame surrounds the light-emitting unit, and the protective layer covers the light-emitting unit. A distance between the first electrode and the second electrode is smaller than that between the first connection pad and the second connection pad.
    Type: Grant
    Filed: February 21, 2022
    Date of Patent: September 5, 2023
    Assignee: EPISTAR CORPORATION
    Inventor: Shao-You Deng