Making Emissive Array Patents (Class 438/34)
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Patent number: 11830733Abstract: 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: GrantFiled: March 28, 2022Date of Patent: November 28, 2023Assignee: Alliance for Sustainable Energy, LLCInventors: John Stanley Mangum, William Edwin Mcmahon, Emily Lowell Warren, San Theingi
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Patent number: 11832481Abstract: 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: GrantFiled: June 18, 2020Date of Patent: November 28, 2023Assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.Inventors: Congcong Fan, Shengfang Liu
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Patent number: 11825677Abstract: 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: GrantFiled: September 27, 2020Date of Patent: November 21, 2023Assignee: Boe Technology Group Co., LTD.Inventor: Yue Liu
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Patent number: 11818941Abstract: 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: GrantFiled: November 30, 2022Date of Patent: November 14, 2023Assignee: ZHEJIANG UNIVERSITYInventors: Dawei Di, Yaxiao Lian, Chungen Hsu, Shun Tian, Baodan Zhao
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Patent number: 11812645Abstract: 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: GrantFiled: August 12, 2021Date of Patent: November 7, 2023Assignee: XIAMEN TIANMA MICRO ELECTRONICS CO., LTD.Inventors: Zhengchuan Zhang, Huangyao Wu, Hao Dai, Hai Liu
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Patent number: 11809055Abstract: 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: GrantFiled: August 10, 2021Date of Patent: November 7, 2023Assignee: ELSTAR DYNAMICS PATENTS B.V.Inventor: Romaric Mathieu Massard
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Patent number: 11805669Abstract: 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: GrantFiled: October 2, 2020Date of Patent: October 31, 2023Assignee: Samsung Display Co., Ltd.Inventors: Yun Jae Kim, Bu Gyoon Yoo, Dong Ho Lee, Joon Hyuk Jang
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Patent number: 11800780Abstract: 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: GrantFiled: September 12, 2019Date of Patent: October 24, 2023Assignees: ORDOS YUANSHENG OPTOELECTRONICS CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventor: Fengli Ji
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Patent number: 11793022Abstract: 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: GrantFiled: March 18, 2020Date of Patent: October 17, 2023Assignees: 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
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Patent number: 11793043Abstract: 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: GrantFiled: March 15, 2021Date of Patent: October 17, 2023Assignee: Samsung Display Co., Ltd.Inventors: Sunghwan Kim, Wonkyu Kwak
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Patent number: 11785795Abstract: 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: GrantFiled: November 24, 2020Date of Patent: October 10, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventor: Jun-Woo Hyung
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Patent number: 11785801Abstract: 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: GrantFiled: May 27, 2022Date of Patent: October 10, 2023Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Zhongyuan Sun, Wei Wang, Lu Wang
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Patent number: 11785821Abstract: 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: GrantFiled: September 30, 2020Date of Patent: October 10, 2023Assignees: 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
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Patent number: 11784210Abstract: 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 coType: GrantFiled: July 29, 2022Date of Patent: October 10, 2023Assignee: EPISTAR CORPORATIONInventors: Cheng-Yu Chen, Hui-Chun Yeh, Chien-Fu Shen
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Patent number: 11770958Abstract: 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: GrantFiled: May 20, 2022Date of Patent: September 26, 2023Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Zhen Song, Guoying Wang
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Patent number: 11758751Abstract: 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: GrantFiled: June 14, 2021Date of Patent: September 12, 2023Assignee: EMAGIN CORPORATIONInventors: Fangchao Zhao, Ilyas I. Khayrullin, Chen Dong, Amalkumar P. Ghosh
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Patent number: 11749780Abstract: 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: GrantFiled: November 16, 2020Date of Patent: September 5, 2023Assignee: Seoul Viosys Co., Ltd.Inventors: Ju Yong Park, Seong Gyu Jang, Kyu Ho Lee, Joon Hee Lee
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Patent number: 11751449Abstract: 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: GrantFiled: May 29, 2020Date of Patent: September 5, 2023Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Zhongjie Wang, Zhongliu Yang
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Patent number: 11744113Abstract: 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: GrantFiled: January 7, 2019Date of Patent: August 29, 2023Assignee: BOE Technology Group Co., Ltd.Inventor: Wenjun Hou
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Patent number: 11744136Abstract: 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: GrantFiled: November 19, 2020Date of Patent: August 29, 2023Assignee: Samsung Display Co., Ltd.Inventors: Sanghoon Kim, Jongsung Park, Wonyoung Jang
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Patent number: 11733810Abstract: 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: GrantFiled: October 6, 2021Date of Patent: August 22, 2023Assignee: LG DISPLAY CO., LTD.Inventors: Takayuki Suzuki, Tomonori Miyokawa, Tsutomu Ichikawa, Jae-Hun Ye, Shinji Takasugi
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Patent number: 11730028Abstract: 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: GrantFiled: February 3, 2021Date of Patent: August 15, 2023Assignee: Samsung Display Co., Ltd.Inventors: Youngmin Cho, Hongam Kim
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Patent number: 11729922Abstract: 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: GrantFiled: June 3, 2022Date of Patent: August 15, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Ki Nyeng Kang, Min Soo Kim, Jong Hyun Choi
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Patent number: 11723238Abstract: 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: GrantFiled: May 5, 2020Date of Patent: August 8, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Gunshik Kim, Jonghyun Choi, Sanghoon Lee
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Patent number: 11723242Abstract: 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: GrantFiled: September 16, 2020Date of Patent: August 8, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Junhyun Park, Hyeongseok Kim, Youngwan Seo, Yujin Lee, Cheolgon Lee
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Patent number: 11723261Abstract: 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: GrantFiled: May 14, 2020Date of Patent: August 8, 2023Assignees: 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
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Patent number: 11706947Abstract: 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: GrantFiled: March 24, 2021Date of Patent: July 18, 2023Assignee: PIONEER CORPORATIONInventor: Takeru Okada
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Patent number: 11705065Abstract: 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: GrantFiled: December 9, 2021Date of Patent: July 18, 2023Assignee: LG Display Co., Ltd.Inventor: HyunHaeng Lee
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Patent number: 11700750Abstract: 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: GrantFiled: November 25, 2020Date of Patent: July 11, 2023Assignee: Samsung Display Co., Ltd.Inventors: Junhwan Moon, Younggil Kwon, Seul Lee, Jihee Son
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Patent number: 11700761Abstract: 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: GrantFiled: December 21, 2020Date of Patent: July 11, 2023Assignee: Samsung Display Co., Ltd.Inventors: Mijung Han, Heena Kim, Sangjin Park
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Patent number: 11696494Abstract: 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: GrantFiled: October 15, 2020Date of Patent: July 4, 2023Assignee: Japan Display Inc.Inventor: Satoshi Maruyama
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Patent number: 11693178Abstract: A photonic integrated circuit (PIC) includes a semiconductor substrate, one or more passive components, and one or more active components. The one or more passive components are fabricated on the semiconductor substrate, wherein the passive components are fabricated in a III-V type semiconductor layer. The one or more active components are fabricated on top of the one or more passive components, wherein optical signals are communicated between the one or more active components via the one or more passive components.Type: GrantFiled: August 8, 2022Date of Patent: July 4, 2023Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIAInventors: John E. Bowers, Arthur Gossard, Daehwan Jung, Justin Norman, Chen Shang, Yating Wan
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Patent number: 11696487Abstract: According to one or more embodiments, a mask assembly includes a mask frame including an opening and a portion surrounding the opening, and a mask arranged on the mask frame and including a first region and a second region, and a deposition material is passable through the first region corresponding to the opening, and the second region is around the first region, and the first region includes deposition openings, and the second region includes dummy openings, at least some of the dummy openings including centers arranged to deviate from a straight line connecting centers of the deposition openings, and a width of each of the deposition openings is the same as a width of each of the dummy openings.Type: GrantFiled: July 23, 2020Date of Patent: July 4, 2023Assignee: Samsung Display Co., Ltd.Inventors: Jeunghoon Kim, Seungmin Jin
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Patent number: 11690267Abstract: The present disclosure provides a defining solution for preparing a pixel defining layer configured to define individual pixels on a substrate, comprising: a lyophilic material, a lyophobic material and an initiator, wherein the lyophobic material comprises: a first lyophobic material and a second lyophobic material, and wherein a mass average molecular weight of the first lyophobic material is greater than a mass average molecular weight of the second lyophobic material, and a mass average molecular weight of the lyophilic material is greater than the mass average molecular weight of the first lyophobic material. The present disclosure further provides a display panel, a display apparatus and a method of preparing a pixel defining layer.Type: GrantFiled: May 13, 2020Date of Patent: June 27, 2023Assignees: Hefei BOE Joint Technology Co., Ltd., BOE Technology Group Co., Ltd.Inventor: Wenbin Jia
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Patent number: 11690241Abstract: An embodiment of the present invention provides a display panel. The display panel includes a driving circuit layer, a first electrode layer, an auxiliary electrode layer, a pixel definition layer, and an electron transport layer disposed in a stack. The electron transport layer is connected to the auxiliary electrode layer through a first via hole defined on the pixel definition layer. By setting an energy level difference between a lowest unoccupied molecular orbital of the electron transport layer and a work function of the auxiliary electrode layer to 2.0 eV or less, it reduces an injection barrier between the auxiliary electrode layer and the electron transport layer, and relieves unevenness of luminescence of the display panel.Type: GrantFiled: May 21, 2020Date of Patent: June 27, 2023Inventors: Shipan Wang, Ting Shi, Weiran Cao
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Patent number: 11681405Abstract: A touch sensor includes a base layer, a first electrode unit, second electrode units, and a first strain gauge. The first electrode unit includes first touch electrodes arranged on the base layer along a first direction and electrically connected to each other along the first direction. The second electrode units are spaced apart from one another along the first direction. Each of the second electrode units includes second touch electrodes arranged on the base layer along a second direction intersecting the first direction and electrically connected to each other along the second direction. Each of the second touch electrodes includes a first opening. The first strain gauge includes first resistance lines electrically connected to each other along the first direction. Each of the first resistance lines is disposed in a respective first opening disposed in a first row among the first openings.Type: GrantFiled: October 11, 2022Date of Patent: June 20, 2023Assignee: Samsung Display Co., Ltd.Inventors: Jang Hui Kim, Ga Young Kim, A Ra Jo
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Patent number: 11682746Abstract: There are provided methods of growing arrays of light emitters on substrates. An example method includes adjusting a growth parameter of a given light emitter of an array of light emitters on a substrate to obtain an adjusted growth parameter. The adjusting may be based on a location of the given light emitter on the substrate. The adjusting may be to compensate for nonuniformity in a growth profile of the light emitters across the substrate. The nonuniformity may be associated with a corresponding nonuniformity among wavelengths of light generated by the light emitters. Adjusting the growth parameter may be to adjust the corresponding nonuniformity. The method may also include growing the given light emitter on the substrate based on the adjusted growth parameter. Arrays of corresponding light emitters are also described.Type: GrantFiled: September 29, 2020Date of Patent: June 20, 2023Assignee: DIFTEK LASERS, INC.Inventor: Douglas R. Dykaar
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Patent number: 11672147Abstract: The present application discloses a display substrate. The display substrate may include a base substrate; a plurality of first electrodes arranged in an array on the base substrate; and a pixel defining layer defining a plurality of openings on the base substrate. The plurality of openings may overlap the plurality of first electrodes respectively. The pixel defining layer may include a plurality of first pixel defining units and a plurality of second pixel defining units; and the plurality of first pixel defining units may be separated from one another.Type: GrantFiled: May 16, 2019Date of Patent: June 6, 2023Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Wei Li, Bin Zhou, Jun Liu, Ning Liu, Wei Song, Xuehai Gui, Xiaodong Zhang, Rong Liu
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Patent number: 11664311Abstract: A semiconductor device includes a dielectric layer having a first surface and a second surface opposite to the first surface; an active region on the first surface of the dielectric layer; a power rail under the second surface of the dielectric layer, wherein the dielectric layer is between the active region and the power rail; a spacer physically dividing the active region into a first part and a second part, the first part and the second part being conductively isolated from each other by the spacer; an intermediate layer comprising: first and second conductive segments; and wherein the spacer joins the first conductive segment and the second conductive segment, and electrically isolates the first conductive segment from the second conductive segment, wherein a join length between the first conductive segment and the spacer is equal to a join length between the second conductive segment and the spacer.Type: GrantFiled: January 17, 2020Date of Patent: May 30, 2023Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.Inventors: Shih-Wei Peng, Jiann-Tyng Tzeng
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Patent number: 11665920Abstract: A transparent display panel has an auxiliary electrode region including a partition wall whose a width of a top face is larger than that of a bottom face thereof. The auxiliary electrode region is disposed on a line region within a display region. A second electrode of an organic light-emitting element and a VSS voltage connection line is electrically connected to each other via an auxiliary electrode, such that electrical resistance of the second electrode as a transparent electrode is reduced. Further, the auxiliary electrode region is formed on each of a plurality of line regions respectively including VSS voltage connection lines extending across the display region. Thus, a current is fed to each pixel in the display region in a smooth manner, such that luminance distribution across the panel is uniform.Type: GrantFiled: November 10, 2020Date of Patent: May 30, 2023Assignee: LG Display Co., Ltd.Inventors: Soyi Lee, Changsoo Kim, Euitae Kim, Kiseob Shin
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Patent number: 11641766Abstract: A light-emitting display device includes an organic layer formed to be divided between adjacent subpixels through a change in structure of a bank without the provision of an additional construction, whereby it is possible to prevent lateral leakage of current.Type: GrantFiled: December 11, 2020Date of Patent: May 2, 2023Assignee: LG DISPLAY CO., LTD.Inventors: Seok-Woo Son, Jung-Sun Baek, Jo-Yeon Kim
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Patent number: 11637160Abstract: A display apparatus includes: a substrate including a first area, a second area, and a third area that is between the first area and the second area; a plurality of first to third display elements respectively arranged in the first to third areas, each of the plurality of first to third display elements including a pixel electrode; and an insulating layer including a plurality of first to third openings that respectively expose at least portions of the pixel electrodes of the plurality of first to third display elements. A number of the plurality of first openings is greater than a number of the plurality of second openings per unit area. In a plan view, an area of the plurality of first openings is greater than an area of the plurality of third openings.Type: GrantFiled: July 21, 2021Date of Patent: April 25, 2023Assignee: Samsung Display Co., Ltd.Inventors: Jaehun Lee, Jungi Kim, Junho Sim, Yangho Jung
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Patent number: 11637269Abstract: An organic EL display device includes an organic EL element disposed on a flattening film, and a sealing film disposed over the organic EL element, a display region, and a frame region disposed around the display region. The frame region includes a plurality of mask spacers. The flattening film has a recess disposed between the display region and the mask spacers adjacent to the display region. The recess is filled with an organic film.Type: GrantFiled: May 23, 2018Date of Patent: April 25, 2023Assignee: SHARP KABUSHIKI KAISHAInventors: Tohru Senoo, Takeshi Hirase, Hisao Ochi, Takashi Ochi, Tohru Sonoda, Akihiro Matsui, Yoshinobu Miyamoto, Jumpei Takahashi
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Liquid crystal display device, method for driving the same, and electronic device including the same
Patent number: 11636825Abstract: The liquid crystal display device includes a pixel portion including a plurality of pixels to which image signals are supplied; a driver circuit including a signal line driver circuit which selectively controls a signal line and a gate line driver circuit which selectively controls a gate line; a memory circuit which stores the image signals; a comparison circuit which compares the image signals stored in the memory circuit in the pixels and detects a difference; and a display control circuit which controls the driver circuit and reads the image signal in accordance with the difference. The display control circuit supplies the image signal only to the pixel where the difference is detected. The pixel includes a thin film transistor including a semiconductor layer including an oxide semiconductor.Type: GrantFiled: March 14, 2022Date of Patent: April 25, 2023Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Jun Koyama, Shunpei Yamazaki -
Patent number: 11637243Abstract: Self-organizing patterns with micrometer-scale feature sizes are promising for the large area fabrication of photonic devices and scattering layers in optoelectronics. Pattern formation would ideally occur in the active semiconductor to avoid the need for further processing steps. The present disclosure includes approaches to form period patterns in single layers of organic semiconductors by an annealing process. When heated, a crystallization front propagates across the film, producing a sinusoidal surface structure with wavelengths comparable to that of near-infrared light. These surface features form initially in the amorphous region within a micron of the crystal growth front, likely due to competition between crystal growth and surface mass transport. The pattern wavelength can be tuned by varying film thickness and annealing temperature, millimeter scale domain sizes are obtained. Aspects of the disclosure can be exploited for self-assembly of microstructured organic optoelectronic devices, for example.Type: GrantFiled: May 22, 2020Date of Patent: April 25, 2023Assignee: Regents of the University of MinnesotaInventors: Russell J. Holmes, John David Myers-Bangsund, Thomas Robert Fielitz
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Patent number: 11631830Abstract: A display apparatus including a display panel having a folding portion about which the display panel is configured to fold, a first lower film and a second lower film on one surface of the display panel, the first lower film and the second lower film being spaced apart from each other, at least one bump on the first lower film or the second lower film, and a first sub-layer on the first lower film, in which, when the display panel is folded, the folding portion is configured to fold so that a surface of the display panel located further from the first sub-layer is exposed and the first sub-layer faces another surface of the display panel located closer to the first sub-layer, and a height of the at least one bump is approximately less than or equal to a thickness of the first sub-layer.Type: GrantFiled: February 3, 2021Date of Patent: April 18, 2023Assignee: Samsung Display Co., Ltd.Inventors: Ohjune Kwon, Seungwook Kwon, Minsang Kim, Seungyong Song
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Patent number: 11626577Abstract: An organic light-emitting diode (OLED) device includes a substrate, a well structure on the substrate with the well structure having a recess with side walls and a floor, a lower metal layer covering the floor and side-walls of the well, an upper conductive layer on the lower metal layer covering the floor of the well and contacting the lower metal layer, the upper conductive layer having outer edges at about an intersection of the side walls and the floor, a dielectric layer formed of an oxide of the lower metal layer covering the side walls of the well without covering the upper conductive layer, a stack of OLED layers covering at least the floor of the well, the upper conductive layer providing an electrode for the stack of OLED layers, and a light extraction layer (LEL) in the well over the stack of OLED layers and the dielectric layer.Type: GrantFiled: January 19, 2021Date of Patent: April 11, 2023Assignee: Applied Materials, Inc.Inventors: Gang Yu, Chung-Chia Chen, Wan-Yu Lin, Hyunsung Bang, Lisong Xu, Byung Sung Kwak, Robert Jan Visser
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Patent number: 11626449Abstract: In a display device, an inorganic insulating layer, a metal layer, a flattering film, a first electrode, an edge cover, a function layer, and a second electrode are formed, in that order, on a base substrate. The edge cover covers an edge of the first electrode and includes a first opening exposing the first electrode. The function layer is formed covering the first opening and an edge of the edge cover. The flattening film includes a first planar portion and a second planar portion having a film thickness smaller than that of the first planar portion, is configured to electrically connect the first electrode and the metal layer via a contact hole formed in the first planar portion, and overlaps the first opening of the edge cover at at least a portion of the second planar portion.Type: GrantFiled: March 22, 2018Date of Patent: April 11, 2023Assignee: SHARP KABUSHIKI KAISHAInventors: Tohru Okabe, Ryosuke Gunji, Shinsuke Saida, Shinji Ichikawa, Kohji Ariga, Hiroki Taniyama, Yoshihiro Nakada, Koji Tanimura, Yoshihiro Kohara, Hiroharu Jinmura, Akira Inoue
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Patent number: 11626066Abstract: A pixel arrangement structure of an organic light emitting diode (OLED) display is provided. The pixel arrangement structure includes: a first pixel having a center coinciding with a center of a virtual square; a second pixel separated from the first pixel and having a center at a first vertex of the virtual square; and a third pixel separated from the first pixel and the second pixel, and having a center at a second vertex neighboring the first vertex of the virtual square. The first pixel, the second pixel, and the third pixel have polygonal shapes.Type: GrantFiled: June 24, 2022Date of Patent: April 11, 2023Assignee: Samsung Display Co., Ltd.Inventor: Sang-Shin Lee
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Patent number: 11626067Abstract: A pixel arrangement structure of an organic light emitting diode (OLED) display is provided. The pixel arrangement structure includes: a first pixel having a center coinciding with a center of a virtual square; a second pixel separated from the first pixel and having a center at a first vertex of the virtual square; and a third pixel separated from the first pixel and the second pixel, and having a center at a second vertex neighboring the first vertex of the virtual square. The first pixel, the second pixel, and the third pixel have polygonal shapes.Type: GrantFiled: June 24, 2022Date of Patent: April 11, 2023Assignee: Samsung Display Co., Ltd.Inventor: Sang-Shin Lee