Making Emissive Array Patents (Class 438/34)
  • Patent number: 11925078
    Abstract: A display device includes the following: a resin substrate; a TFT layer disposed on the resin substrate, the TFT layer having a stack of, in sequence, a base coat film, a semiconductor film, a gate insulating film, a first metal film, an interlayer insulating film, a second metal film, and a flattening film; a light-emitting element disposed on the TFT layer and forming a display region; and a plurality of TFTs disposed in the TFT layer in the display region. The base coat film includes an amorphous silicon film disposed at least all over the display region.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: March 5, 2024
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Tokuo Yoshida, Tohru Okabe
  • Patent number: 11917882
    Abstract: A light-emitting device, an electronic device, or a lighting device with low power consumption and high reliability is provided. The light-emitting device includes a first light-emitting element, a second light-emitting element, a third light-emitting element, and a fourth light-emitting element. The first to fourth light-emitting elements include the same EL layer between an anode and a cathode. The EL layer includes a first light-emitting layer and a second light-emitting layer. The first light-emitting layer contains a fluorescent substance. The peak wavelength of an emission spectrum of the fluorescent substance in a toluene solution of the fluorescent substance is 440 nm to 460 nm, preferably 440 nm to 455 nm. The second light-emitting layer contains a phosphorescent substance. The first light-emitting element exhibits blue emission. The second light-emitting element exhibits green emission. The third light-emitting element exhibits red emission.
    Type: Grant
    Filed: November 25, 2020
    Date of Patent: February 27, 2024
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Satoshi Seo, Toshiki Sasaki, Tsunenori Suzuki, Sachiko Kawakami, Naoaki Hashimoto
  • Patent number: 11906869
    Abstract: The present disclosure is in the field of an electrophoretic device for switching between a transparent and non-transparent mode, comprising a fluid and particles, electrodes for moving said particles, and comprising various further elements, as well as uses thereof, in particular as a window blind.
    Type: Grant
    Filed: November 2, 2020
    Date of Patent: February 20, 2024
    Assignee: ELSTAR DYNAMICS PATENTS B.V.
    Inventor: Romaric Mathieu Massard
  • Patent number: 11903301
    Abstract: A method of manufacturing a display panel includes preparing a work substrate that includes a mother substrate that has a plurality of cell areas, a light emitting element layer formed in each of the cell areas, and an encapsulation layer formed on each cell area, disposing a plurality of protective films in the cell areas, respectively, that cover the light emitting element layer and the encapsulation layer, cutting the work substrate along cutting lines at an outer side of the protective films of each cell area to form a preliminary display panel, grinding side surfaces of the preliminary display panel, and removing the protective films from each ground preliminary display panel to form the display panel.
    Type: Grant
    Filed: November 18, 2021
    Date of Patent: February 13, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Younghoon Lee, Youngji Kim, Yiseul Um, Wonje Jo, Young Seo Choi, Dongwon Han
  • Patent number: 11903262
    Abstract: A display panel includes a substrate, and a pixel defining layer and a cathode layer that are laminated on the substrate. The pixel defining layer includes a plurality of strip-shaped first pixel defining structures and a plurality of strip-shaped second pixel defining structures. A slope angle of the second pixel defining structure is greater than a slope angle of the first pixel defining structure, and the second pixel defining structure is configured to separate portions of the cathode layer on two sides of the second pixel defining structure.
    Type: Grant
    Filed: June 9, 2021
    Date of Patent: February 13, 2024
    Assignees: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD, BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Wei Li, Bin Zhou, Shengping Du, Qinghua Guo, Tao Sun, Wei Song, Liangchen Yan
  • Patent number: 11888291
    Abstract: Disclosed herein are various embodiments for stronger and more powerful high speed laser arrays. For example, an apparatus is disclosed that comprises an active mesa structure in combination with an electrical waveguide, wherein the active mesa structure comprises a plurality of laser regions within the active mesa structure itself, each laser region of the active mesa structure being electrically isolated within the active mesa structure itself relative to the other laser regions of the active mesa structure.
    Type: Grant
    Filed: January 12, 2023
    Date of Patent: January 30, 2024
    Assignee: OptiPulse, Inc.
    Inventor: John Richard Joseph
  • Patent number: 11881488
    Abstract: A display panel includes: a first gate line extending in a first direction; a second gate line extending in the first direction and spaced apart from the first gate line in a second direction crossing the first direction; a first connection line extending in the second direction; and a second connection line extending in the second direction and spaced apart from the first connection line in the first direction, wherein a distal end of the first connection line overlaps the first gate line and is electrically connected to the first gate line, and wherein a distal end of the second connection line overlaps the second gate line and is electrically connected to the second gate line.
    Type: Grant
    Filed: June 18, 2021
    Date of Patent: January 23, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventor: Sun Park
  • Patent number: 11882731
    Abstract: A display panel includes a substrate, a planarization layer disposed at a side of the substrate being provided with partitioning slots to form driving areas in an array; a first electrode layer on the planarization layer having first electrodes; wherein orthographic projections of the first electrodes on the planarization layer are within the driving areas; each of the first electrodes includes a planar center portion and an edge portion, the edge portion includes a planarization portion surrounding the center portion and a slope portion connected between the center portion and the planarization portion; a pixel definition layer on the planarization layer that exposes part of the center portion; a light-emitting functional layer covering the pixel definition layer, the center portion being exposed by the pixel definition layer and the planarization layer and a second electrode covering the light-emitting functional layer.
    Type: Grant
    Filed: April 21, 2020
    Date of Patent: January 23, 2024
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Kuanta Huang, Hui Tong, Xiong Yuan, Xiaobin Shen, Yu Wang, Qing Wang, Shipeng Li, Chao Yang, Shangquan Shi, Yongfa Dong, Dongsheng Li
  • Patent number: 11881547
    Abstract: A display device may include a substrate, and a display element layer disposed on the substrate and including a light emitting element that emits light in a display direction. The display element layer may include a first contact electrode electrically connected to the light emitting element, a second contact electrode electrically connected to the light emitting element, and a bank pattern having a shape extending in the display direction. At least one of the first contact electrode, the second contact electrode, and the bank pattern may include a transparent conductive polymer.
    Type: Grant
    Filed: April 12, 2021
    Date of Patent: January 23, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hang Jae Lee, Yuk Hyun Nam, Sang Hoon Park
  • Patent number: 11870008
    Abstract: A nanorod light-emitting device is provided. The nanorod light-emitting device includes a first semiconductor layer, a light-emitting layer on the first semiconductor layer, a second semiconductor layer disposed on the light-emitting layer, at least one conductive layer disposed between a central portion of a lower surface of the light-emitting layer and the first semiconductor layer, or between a central portion of an upper surface of the light-emitting layer and the second semiconductor layer, at least one current blocking layer that surrounds a side surface of the at least one conductive layer, and an insulating film that surrounds a side surface of the second semiconductor layer, a side surface of the light-emitting layer, and a side surface of the at least one current blocking layer.
    Type: Grant
    Filed: April 12, 2021
    Date of Patent: January 9, 2024
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jinjoo Park, Junhee Choi, Nakhyun Kim, Dongho Kim, Joohun Han
  • Patent number: 11871627
    Abstract: A display device includes: a substrate; a first conductive layer including a lower pattern disposed on the substrate; an active layer including a first active pattern disposed on the first conductive layer; and a second conductive layer including a first gate electrode disposed on the active layer, wherein the first gate electrode overlaps a first channel region included in the first active pattern, the lower pattern overlaps the first active pattern, and the first active pattern does not cross an edge of the lower pattern.
    Type: Grant
    Filed: November 22, 2021
    Date of Patent: January 9, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jun Hyun Park, Kang Moon Jo, Dong Woo Kim
  • Patent number: 11871596
    Abstract: A display device includes a base substrate, a first transistor, a second transistor, an organic light emitting diode, and a capacitor electrically connected to the first thin film transistor. The first transistor includes a first semiconductor pattern below a first interlayer insulation layer and a first control electrode above the first interlayer insulation layer and below a second interlayer insulation layer. The second transistor includes a second control electrode above the first interlayer insulation layer and below the second interlayer insulation layer. A second semiconductor pattern is above the second interlayer insulation layer.
    Type: Grant
    Filed: October 28, 2020
    Date of Patent: January 9, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jaybum Kim, Eoksu Kim, Kyoungseok Son, Junhyung Lim, Jihun Lim
  • Patent number: 11869896
    Abstract: A display device includes a substrate and a transistor disposed on the substrate and including a semiconductor layer, wherein the semiconductor layer includes a mesh structure, and wherein a plurality of openings are formed in the semiconductor layer.
    Type: Grant
    Filed: July 6, 2021
    Date of Patent: January 9, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Woo Bin Lee, Seok Hwan Bang, Seung Sok Son, Woo Geun Lee, Soo Jung Chae
  • Patent number: 11864416
    Abstract: A display device includes: a substrate; a plurality of transistors disposed on the substrate; an insulating layer disposed on the plurality of transistors; a data line and a driving voltage line disposed on the insulating layer; a pixel electrode disposed on the data line or the driving voltage line; a pixel defining layer disposed on the pixel electrode and including a pixel opening that overlaps the pixel electrode; a light emitting element layer disposed in the pixel opening; and a common electrode disposed on the light emitting element layer, wherein the pixel opening includes a first sub-pixel opening and a second sub-pixel opening and a first blocking portion that is disposed between the first sub-pixel opening and the second sub-pixel opening.
    Type: Grant
    Filed: May 20, 2021
    Date of Patent: January 2, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jae Hun Lee, Jun Gi Kim, Jun Ho Sim, Yang-Ho Jung
  • Patent number: 11864407
    Abstract: A display device includes a substrate having a display area, in which an image is displayed, and a non-display area, in which no image is displayed. The non-display area is disposed on at least one side of the display area. A plurality of pixels is disposed in the display area. An encapsulation layer is disposed on the plurality of pixels. A dam unit is disposed in the non-display area. The dam unit includes a body part and a plurality of protrusions. Each of the plurality of protrusions protrudes from the body part.
    Type: Grant
    Filed: February 7, 2022
    Date of Patent: January 2, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Oh June Kwon, Il Sang Lee, Doo Hwan Kim, Woo Yong Sung, Min Sang Kim, Jin Hwan Jeon, Seung Yong Song
  • Patent number: 11864413
    Abstract: A display substrate, a manufacturing method thereof, and a display device are provided. A pixel region is provided with a light emission function layer on a base substrate of the display substrate, and a separation region is provided with at least one first barrier structure. The first barrier structure includes a stopper pattern and a first separation component. A side surface of the first separation component has a recess, and a portion of the light emission function layer extending to the separation region is disconnected on the side of the first separation component. The separation region is provided with an inorganic layer structure on the base substrate. The inorganic layer structure includes multiple stacked inorganic film layers, the stopper pattern is located between two adjacent inorganic film layers and the first separation component is located on a side of the inorganic layer structure away from the base substrate.
    Type: Grant
    Filed: May 15, 2020
    Date of Patent: January 2, 2024
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yupeng He, Yang Zhou, Xin Zhang, Pengfei Yu, Xiaofeng Jiang, Yi Qu, Lulu Yang, Huijun Li, Meng Zhang
  • Patent number: 11854887
    Abstract: The present disclosure provides a semiconductor device and a fabrication method thereof. The semiconductor device includes a substrate, a group III-V layer disposed on the substrate, a dielectric layer disposed on the group III-V layer, and an inclined sidewall extending from the dielectric layer to the substrate. Wherein the substrate comprising a relative rough surface opposite the inclined sidewall.
    Type: Grant
    Filed: April 10, 2020
    Date of Patent: December 26, 2023
    Assignee: INNOSCIENCE (ZHUHAI) TECHNOLOGY CO., LTD.
    Inventors: Weixing Du, Yulong Zhang, Jue Ouyang, Minghong Chang
  • Patent number: 11847957
    Abstract: A plurality of pixel drive circuits form part of an array of emissive elements. The plurality of pixel drive circuits are disposed to form a plurality of rows and a plurality of columns. The plurality of pixel drive circuits are organized into sets of pixel drive circuits, and each set comprises at least one pixel drive circuit. A FET of a set of pixel drive circuits shares a common well with other FETs of similar function in the same set of pixel drive circuits positioned therein, such that the variance of the threshold voltages of those FETs is substantially reduced. Each of the pixel drive circuits comprises a circuit operative to deliver a current at a predetermined voltage to an emissive device and a memory circuit operative to receive modulation data and to use same to modulate the current output of the pixel drive circuit.
    Type: Grant
    Filed: December 15, 2021
    Date of Patent: December 19, 2023
    Assignee: GOOGLE LLC
    Inventors: Edwin Lyle Hudson, Bo Li
  • Patent number: 11837131
    Abstract: A display device includes a display panel including a plurality of pixels, a scan driver which supplies scan signals and sensing control signals to scan lines and sensing control lines, based on a clock signal, a power manager which applies initialization power to initialization lines, a sensor which senses threshold voltages of driving transistors, a detector which detects an error of the initialization lines and outputs line information indicating an initialization line having the error, a timing controller which changes a sensed threshold voltage using the initialization line having the error and generates image data with reference to a changed threshold voltage, and a data driver which supplies a data signal corresponding to the image data to data lines.
    Type: Grant
    Filed: October 27, 2020
    Date of Patent: December 5, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Si Duk Sung, Dae Sik Lee, Sang Hyun Lee
  • Patent number: 11832481
    Abstract: A display panel and a display device are provided. The display panel includes an array substrate, a first electrode, a pixel defining block, an organic common layer, a second electrode, an adhesive layer, and a thin film encapsulation layer. The organic common layer corresponding to the pixel defining block is defined with a through hole, and the adhesive layer is filled, which realizes a strong adhesion between the second electrode and the pixel defining block, and reduces a risk of peeling between layers of the organic common layer.
    Type: Grant
    Filed: June 18, 2020
    Date of Patent: November 28, 2023
    Assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventors: Congcong Fan, Shengfang Liu
  • Patent number: 11830733
    Abstract: Described herein are systems and methods of utilizing nanochannels generated in the sacrificial layer of a semiconductor substrate to increase epitaxial lift-off speeds and facilitate reusability of GaAs substrates. The provided systems and methods may utilize unique nanochannel geometries to increase the surface area exposed to the etchant and further decrease etch times.
    Type: Grant
    Filed: March 28, 2022
    Date of Patent: November 28, 2023
    Assignee: Alliance for Sustainable Energy, LLC
    Inventors: John Stanley Mangum, William Edwin Mcmahon, Emily Lowell Warren, San Theingi
  • Patent number: 11825677
    Abstract: A display substrate has a plurality of sub-pixel regions used to display images and a non-sub-pixel region surrounding the sub-pixel regions. The display substrate includes a light-emitting device layer. The light-emitting device layer includes a first electrode layer. The first electrode includes a plurality of first electrodes electrically connected to each other and at least one hollowed-out region among part of adjacent first electrodes. The at least one hollowed-out region is located in the non-sub-pixel region.
    Type: Grant
    Filed: September 27, 2020
    Date of Patent: November 21, 2023
    Assignee: Boe Technology Group Co., LTD.
    Inventor: Yue Liu
  • Patent number: 11818941
    Abstract: An optoelectronic device includes a semiconductor substrate, wherein a first transport layer is formed on a first partial region of the semiconductor substrate; a first insulation layer is formed on a second partial region around the first partial region; the first transport layer is formed on the first insulation layer; an interface layer is formed on the first transport layer; a light-emitting material layer containing perovskite material is formed on the interface layer; a second insulation layer is formed on the light-emitting material layer in the second partial region and on the light-emitting material layer near a second partial region side in the first partial region, so that the characteristic size of a single light-emitting pixel or effective working region is adjustable.
    Type: Grant
    Filed: November 30, 2022
    Date of Patent: November 14, 2023
    Assignee: ZHEJIANG UNIVERSITY
    Inventors: Dawei Di, Yaxiao Lian, Chungen Hsu, Shun Tian, Baodan Zhao
  • Patent number: 11809055
    Abstract: The present disclosure is in the field of an electrophoretic device for switching between a transparent and non-transparent mode, comprising a fluid and particles, electrodes for moving said particles, and comprising various further elements, as well as uses thereof, in particular as a window blind.
    Type: Grant
    Filed: August 10, 2021
    Date of Patent: November 7, 2023
    Assignee: ELSTAR DYNAMICS PATENTS B.V.
    Inventor: Romaric Mathieu Massard
  • Patent number: 11812645
    Abstract: A display panel and a display device are provided. The display panel includes a substrate; a driving circuit layer, disposed on the substrate and including a reset signal line and a first power signal line; a light-emitting element layer, including organic light-emitting elements, wherein each organic light-emitting element includes a first electrode, a light-emitting layer, and a second electrode, and the light-emitting layer includes a first common layer, a light-emitting material layer and a second common layer; and a compensation capacitor, disposed between at least two adjacent organic light-emitting elements and including a first plate and a second plate insulated from each other, wherein the first plate is disposed on a side of the first common layer facing the substrate and in contact with the first common layer and electrically connected with the reset signal line, and the second plate is electrically connected with the first power signal line.
    Type: Grant
    Filed: August 12, 2021
    Date of Patent: November 7, 2023
    Assignee: XIAMEN TIANMA MICRO ELECTRONICS CO., LTD.
    Inventors: Zhengchuan Zhang, Huangyao Wu, Hao Dai, Hai Liu
  • Patent number: 11805669
    Abstract: A display panel having a display area and a non-display area at least partially disposed around the display area, and first and second opposing surfaces; and a first stack structure disposed on the first surface of the display panel including a first layer disposed on the first surface of the display panel, a second layer disposed on the first layer, and a third layer, disposed between the first layer and the second layer; the second layer having a larger size than the first layer in a plan view; and a side surface of the second layer extending outwardly beyond a side surface of the first layer.
    Type: Grant
    Filed: October 2, 2020
    Date of Patent: October 31, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yun Jae Kim, Bu Gyoon Yoo, Dong Ho Lee, Joon Hyuk Jang
  • Patent number: 11800780
    Abstract: Disclosed are a mask device, a manufacturing method thereof, an evaporation method and a display device. The mask device includes: a mask frame; at least one first mask strip extending in a first direction, at least one second mask strip extending in a second direction, and a first mask plate extending in the first direction, which are fixed on the mask frame. The first direction crosses the second direction, the first mask strip and the second mask strip are intersected to define at least one mask opening, the first mask plate includes a mask pattern region, and the mask pattern region includes a first group of through holes covered by an orthographic projection of the at least one mask opening on the first mask plate, and a second group of through holes covered by an orthographic projection of the first and second mask strips on the first mask plate.
    Type: Grant
    Filed: September 12, 2019
    Date of Patent: October 24, 2023
    Assignees: ORDOS YUANSHENG OPTOELECTRONICS CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Fengli Ji
  • Patent number: 11793022
    Abstract: The present disclosure provides an organic light-emitting display panel, a method of manufacturing the organic light-emitting display panel, and a display apparatus. The organic light-emitting display panel includes: a substrate having an opening passing through the substrate; a pixel array disposed on the substrate and including a plurality of pixels; an isolation part disposed between the plurality of pixels and the opening and surrounding the opening, wherein the isolation part includes: a first layer disposed on the substrate, wherein the first layer includes a first portion and a second portion which are sequentially stacked in a direction away from the substrate, and an orthogonal projection of the first portion on the substrate falls within an orthogonal projection of the second portion on the substrate; and a second layer disposed on a surface of the first layer away from the substrate.
    Type: Grant
    Filed: March 18, 2020
    Date of Patent: October 17, 2023
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Kuo Sun, Chunyan Xie, Pan Zhao, Wenbo Hu, Xiaoliang Guo, Jianpeng Wu, Jian He, Song Zhang, Pinfan Wang, Penghao Gu
  • Patent number: 11793043
    Abstract: A display apparatus in which a display area is expanded so that an image may be displayed even in an area where components are arranged\is provided. The display apparatus includes a substrate including a first area in which a transmissive portion is located and a second area adjacent to the first area, a pixel circuit unit arranged in the first area and including a pixel circuit, a first pixel electrode arranged in the first area and electrically connected to the pixel circuit, the first pixel electrode having a first portion overlapping the pixel circuit unit and a second portion not overlapping the pixel circuit unit, and a metal pattern layer arranged between the substrate and the first pixel electrode and corresponding to the second portion.
    Type: Grant
    Filed: March 15, 2021
    Date of Patent: October 17, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sunghwan Kim, Wonkyu Kwak
  • Patent number: 11785801
    Abstract: The present disclosure is related to a display substrate. The display substrate may include a base substrate, a display structure on a display area of the base substrate, at least one blocking structure on a peripheral area around the display area of the base substrate, and a first water-blocking layer on the substrate. The first water-blocking layer may cover the display structure and the at least one blocking structure. The blocking structure may be configured to block cracks generated on the first water-blocking layer at a side of the blocking structure opposite from the display area from propagating to the display area.
    Type: Grant
    Filed: May 27, 2022
    Date of Patent: October 10, 2023
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zhongyuan Sun, Wei Wang, Lu Wang
  • Patent number: 11785795
    Abstract: Disclosed is a display device that includes a substrate including a first display region and a second display region adjacent to the first display region, a pixel layer disposed on the substrate and including transmission regions that overlap the first display region, and a protective layer below the substrate. The protective layer includes a first part below the first display region and a second part below the second display region. The first part has a thickness less than a thickness of the second part.
    Type: Grant
    Filed: November 24, 2020
    Date of Patent: October 10, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Jun-Woo Hyung
  • Patent number: 11785821
    Abstract: A display substrate and a related device, and belongs to the field of display technology. The display substrate includes first subpixels, a second subpixels and third subpixels. In a first direction, the first subpixels and the third subpixels are arranged alternately to form a plurality of first subpixel rows, the second subpixels form a plurality of second subpixel rows, the first subpixel rows and the second subpixel rows are arranged alternately in a second direction, lines connecting centers of two first subpixels and two third subpixels in two adjacent rows and two adjacent columns form a first virtual quadrilateral, the two first subpixels are arranged at two opposite vertices of the first virtual quadrilateral, the first virtual quadrilateral includes an interior angle a not equal to 90°, and the second subpixel is arranged within the first virtual quadrilateral.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: October 10, 2023
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Chang Luo, Ming Hu, Qian Xu, Jianpeng Wu, Tong Niu, Yan Huang, Guomeng Zhang, Benlian Wang, Peng Xu, Fengli Ji, Yi Zhang
  • Patent number: 11784210
    Abstract: A method for manufacturing a light-emitting device, includes: forming a semiconductor stack on a substrate, wherein the semiconductor stack includes a first semiconductor layer, a second semiconductor layer and an active region formed therebetween; removing portions of the semiconductor stack to form a plurality of mesas and exposing a part of the first semiconductor layer, wherein the part of the first semiconductor layer includes a first portion and a second portion; forming a plurality of trenches by removing the first portion of the part of the first semiconductor to exposing a top surface of the substrate and a side wall of the first semiconductor, wherein the plurality of trenches defining a plurality of light-emitting units in the semiconductor stack; wherein in a top view, the plurality of trenches includes a first trench extending along a first direction and a second trench extending along a second direction not parallel with the first trench; and wherein the second trench includes an end; forming co
    Type: Grant
    Filed: July 29, 2022
    Date of Patent: October 10, 2023
    Assignee: EPISTAR CORPORATION
    Inventors: Cheng-Yu Chen, Hui-Chun Yeh, Chien-Fu Shen
  • Patent number: 11770958
    Abstract: The present disclosure generally relates to display technologies. A display substrate includes a first base substrate including a plurality of pixel units arranged in an array, at least one of the plurality of pixel units including at least two sub-pixel units and a transparent area. The at least two sub-pixel units includes a first sub-pixel unit that is arranged between transparent areas of adjacent pixel units in a first direction. An orthographic projection of a pixel drive circuit electrically coupled to the first sub-electrode corresponding to the first sub-pixel unit on the first base substrate partially overlaps with an orthographic projection of a first sub-electrode positionally corresponding to another sub-pixel unit on the first base substrate.
    Type: Grant
    Filed: May 20, 2022
    Date of Patent: September 26, 2023
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zhen Song, Guoying Wang
  • Patent number: 11758751
    Abstract: Aspects of the present disclosure describe systems, methods, and structures that provide organic light-emitting diodes having high luminous efficiency and low electrical dissipation. Embodiments in accordance with the present disclosure include a top electrode normally comprising a single film that includes a pair of metals and one metal compound, where the metals include a precious metal in combination with an alkaline earth metal or rare-earth metal and the metal compound is an alkali metal compound. As a result, such a top electrode has a work function that is better matched for efficient electron injection than magnesium-silver alloy-based transparent electrodes known in the prior art.
    Type: Grant
    Filed: June 14, 2021
    Date of Patent: September 12, 2023
    Assignee: EMAGIN CORPORATION
    Inventors: Fangchao Zhao, Ilyas I. Khayrullin, Chen Dong, Amalkumar P. Ghosh
  • Patent number: 11749780
    Abstract: An ultraviolet light-emitting diode includes: a substrate; an n-type semiconductor layer disposed on the substrate; a mesa disposed on the n-type semiconductor layer and including an active layer and a p-type semiconductor layer; an n-ohmic contact layer contacting the n-type semiconductor layer; a p-ohmic contact layer contacting the p-type semiconductor layer; an n-bump electrically connected to the n-ohmic contact layer; and a p-bump electrically connected to the p-ohmic contact layer, wherein the mesa includes a plurality of branches, the n-ohmic contact layer surrounds the mesa and is disposed in a region between the branches, each of the n-bump and the p-bump covers an upper surface and a side surface of the mesa, and the p-bump covers at least two of the branches among the plurality of branches. Therefore, an optical output can be increased by reducing light loss, and a forward voltage can be lowered.
    Type: Grant
    Filed: November 16, 2020
    Date of Patent: September 5, 2023
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Ju Yong Park, Seong Gyu Jang, Kyu Ho Lee, Joon Hee Lee
  • Patent number: 11751449
    Abstract: An array substrate, a display panel and a display device are provided. The array substrate includes: a base substrate; a plurality of pixel units in an array on the base substrate; and a first power line and a second power line arranged on the base substrate and configured to respectively provide a first power signal and a second power signal to the pixel units. At least one of the pixel units includes: a first-color light emitting device; a second-color light emitting device; a first pixel driving circuit configured to drive the first-color light emitting device; and a second pixel driving circuit configured to drive the second-color light emitting device. The first pixel driving circuit is electrically connected to the first power line, the second pixel driving circuit is electrically connected to the second power line, the first power line and the second power line are insulated from each other.
    Type: Grant
    Filed: May 29, 2020
    Date of Patent: September 5, 2023
    Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zhongjie Wang, Zhongliu Yang
  • Patent number: 11744113
    Abstract: A pixel defining structure includes a first sub-pixel defining structure surrounding a first sub-pixel region configured to form a first sub-pixel having a first color. The first sub-pixel defining structure includes a lyophilic portion one the bottom side of the first sub-pixel region and a lyophobic portion on a side opposite to the bottom side. The pixel defining structure includes a second sub-pixel defining structure surrounding a second sub-pixel region configured to form a second sub-pixel having a second color. The second sub-pixel defining structure includes a lyophilic portion one the bottom side of the second sub-pixel region and a lyophobic portion on a side opposite to the bottom side. The second color is different from the first color. Thicknesses of the lyophilic portion of the first sub-pixel defining structure and the lyophilic portion of the second sub-pixel defining structure are different.
    Type: Grant
    Filed: January 7, 2019
    Date of Patent: August 29, 2023
    Assignee: BOE Technology Group Co., Ltd.
    Inventor: Wenjun Hou
  • Patent number: 11744136
    Abstract: Provided is a mask assembly including a mask frame including an opening; and a mask arranged on the mask frame and including a deposition region and a non-opening region arranged around the deposition region, the deposition region facing the opening to transmit a deposition material. A width of the non-opening region in a lengthwise direction of the mask is about 200 ?m to about 500 ?m.
    Type: Grant
    Filed: November 19, 2020
    Date of Patent: August 29, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sanghoon Kim, Jongsung Park, Wonyoung Jang
  • Patent number: 11733810
    Abstract: A touch display device, in which a plurality of touch electrodes are arranged in a display panel, includes: the plurality of touch electrodes installed inside the display panel; a first coil installed inside the display panel and making a current flow for a mutual induction with the plurality of touch electrodes; and a second coil installed inside the display panel and on which a current flows by a mutual induction with the plurality of touch electrodes, wherein the touch display device conducts a touch detection by the current flowing the second coil.
    Type: Grant
    Filed: October 6, 2021
    Date of Patent: August 22, 2023
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Takayuki Suzuki, Tomonori Miyokawa, Tsutomu Ichikawa, Jae-Hun Ye, Shinji Takasugi
  • Patent number: 11729922
    Abstract: A display device includes: a display panel including first and second areas, and a bending portion between the first and second areas; and a cover window on the display panel. The first area is between the cover window and the second area when the display panel is in a bent state, the first bending portion is between the cover window and the third bending portion when the display panel is in the bent state, and the bending portion includes a first bending portion extending from the first area, a second bending portion extending from the first bending portion, and a third bending portion between the second bending portion and the second area. A radius of curvature of the second bending portion is less than that of the first bending portion, and the radius of curvature of the second bending portion is less than that of the third bending portion.
    Type: Grant
    Filed: June 3, 2022
    Date of Patent: August 15, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ki Nyeng Kang, Min Soo Kim, Jong Hyun Choi
  • Patent number: 11730028
    Abstract: A display apparatus including a substrate having a display area and a peripheral area outside the display area, a first pad disposed on a first layer in the peripheral area, a second pad disposed adjacently to the first pad in a first direction in the peripheral area, the second pad being disposed on a second layer different from the first layer, a third pad disposed adjacently to the first pad in a second direction in the peripheral area, the third pad being disposed on the second layer, a first connection line disposed on the first layer and connected to the first pad, a second connection line disposed on the second layer and connected to the second pad, and a third connection line disposed on the second layer, connected to the third pad, and disposed between the first connection line and the second connection line.
    Type: Grant
    Filed: February 3, 2021
    Date of Patent: August 15, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Youngmin Cho, Hongam Kim
  • Patent number: 11723238
    Abstract: A display device may include a substrate including a first area and a second area surrounding the first area, and pixel circuits disposed on the substrate. The pixel circuits may include a first pixel circuit disposed in the first area and a second pixel circuit disposed in the first area. The display device may include display elements disposed on the substrate. The display elements may include a first display element that may be disposed in the first area and electrically connected to the first pixel circuit and a second display element that may be disposed in the second area and electrically connected to the second pixel circuit. Various embodiments are disclosed.
    Type: Grant
    Filed: May 5, 2020
    Date of Patent: August 8, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Gunshik Kim, Jonghyun Choi, Sanghoon Lee
  • Patent number: 11723242
    Abstract: A display apparatus includes a first display area including a plurality of pixel areas, and a second display area including a plurality of pixel areas and a plurality of transmission areas and arranged adjacent to the first display area. The plurality of pixel areas each includes sub-pixels each including a pixel circuit and an organic light-emitting device electrically connected to the pixel circuit. The pixel circuit includes a thin-film transistor and an inorganic insulating layer on the thin-film transistor, and the thin-film transistor includes a semiconductor layer and a gate electrode. The organic insulated layer extends in the transmission areas. The second display area defines a dummy contact hole which passes through the inorganic insulating layer in at least one of the pixel areas and the transmission areas.
    Type: Grant
    Filed: September 16, 2020
    Date of Patent: August 8, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Junhyun Park, Hyeongseok Kim, Youngwan Seo, Yujin Lee, Cheolgon Lee
  • Patent number: 11723261
    Abstract: A method for manufacturing a light-emitting component, including forming an auxiliary electrode and a first electrode arranged at an interval on a base substrate; depositing, by means of a mask with a hollow area, a light-emitting layer on the base substrate on which the auxiliary electrode and the first electrode are formed; and forming a second electrode on the base substrate on which the light-emitting layer is formed. The light-emitting layer covers at least part of the first electrode, and at least a partial area of the auxiliary electrode is exposed outside the light-emitting layer. The second electrode covers at least part of the light-emitting layer and the at least partial area of the auxiliary electrode, and the second electrode is connected to the at least partial area of the auxiliary electrode.
    Type: Grant
    Filed: May 14, 2020
    Date of Patent: August 8, 2023
    Assignees: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD, BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Tongshang Su, Dongfang Wang, Jun Liu, Yingbin Hu, Qinghe Wang, Shengping Du, Liangchen Yan
  • Patent number: 11706947
    Abstract: A light-emitting unit (140) is formed on a substrate (100), and includes a light-transmitting first electrode (110), a light-reflective second electrode (130), and an organic layer (120) located between the first electrode (110) and the second electrode (130). A light-transmitting region is located between a plurality of light-emitting units (140). An insulating film (150) defines an end (142) of the light-emitting unit (140). A sealing member (200) is fixed to the light-emitting unit (140) directly or through an adhesive layer (210). In addition, a thickness of the substrate (100) is d, and a width of a portion of the second electrode (130) that is further on the outer side of the light-emitting unit (140) than the end (142) is W, d/2 W is established.
    Type: Grant
    Filed: March 24, 2021
    Date of Patent: July 18, 2023
    Assignee: PIONEER CORPORATION
    Inventor: Takeru Okada
  • Patent number: 11705065
    Abstract: In a display device and display panel, a display panel includes: a plurality of pixels arranged in a matrix, each including two white subpixels and a plurality of colored subpixels, and a data pad connecting two adjacent colored subpixels, among the plurality of colored subpixels, corresponding to a same color, in a first direction, wherein luminance data is applied to the white subpixel, wherein each of the plurality of colored subpixels includes a dual subpixel having a size of the two white subpixels arranged in a second direction, the dual subpixel including a plurality of transistors, wherein a first transistor in the dual subpixel is connected to a first signal line extending through a first of the two white subpixels, and wherein a second transistor in the dual subpixel, is connected to a second signal line extending through a second of the two white subpixels.
    Type: Grant
    Filed: December 9, 2021
    Date of Patent: July 18, 2023
    Assignee: LG Display Co., Ltd.
    Inventor: HyunHaeng Lee
  • Patent number: 11700750
    Abstract: Provided are a display device and a method of manufacturing the same. The display device includes a substrate; a pixel electrode on the substrate; a pixel-defining layer having a first opening exposing a central portion of the pixel electrode and a barrier portion defining the first opening; an auxiliary electrode on the barrier portion; an intermediate layer on the pixel electrode; and an opposite electrode on the intermediate layer and in electrical contact with the auxiliary electrode.
    Type: Grant
    Filed: November 25, 2020
    Date of Patent: July 11, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Junhwan Moon, Younggil Kwon, Seul Lee, Jihee Son
  • Patent number: 11700761
    Abstract: A manufacturing method of a display apparatus, in which a defect rate in a manufacturing process is reduced and product reliability is increased, and a display apparatus manufactured according to the method are provided. The manufacturing method includes: forming a first pixel electrode on a substrate; forming an insulating layer; forming a first dam portion; forming a first lift-off layer; forming a first mask layer; forming a first intermediate layer; forming a first opposite electrode; forming a first insulating protective layer; and removing the first dam portion.
    Type: Grant
    Filed: December 21, 2020
    Date of Patent: July 11, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Mijung Han, Heena Kim, Sangjin Park
  • Patent number: 11696494
    Abstract: A display device having an improved display characteristics and reduced manufacturing cost is provided. The display device includes a plurality of pixels arranged on a surface of a substrate. The plurality of pixels each include: a light-emitting element; a driving transistor; a selecting transistor; and a retention capacitor. The driving transistor has a bottom-gate structure. The driving transistor has a semiconductor layer containing a first semiconductor. The retention capacitor has a first electrode and a second electrode. The first electrode doubles as a gate of the driving transistor. The second electrode is disposed at a lower layer than the first electrode and contains a second semiconductor.
    Type: Grant
    Filed: October 15, 2020
    Date of Patent: July 4, 2023
    Assignee: Japan Display Inc.
    Inventor: Satoshi Maruyama