Patents Examined by Dzung Tran
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Patent number: 11508792Abstract: In a display region, etching stopper layers are provided between a plurality of inorganic insulating films, openings are formed in the inorganic insulating films located closer to a light-emitting element than the etching stopper layers so as to expose the upper surfaces of the etching stopper layers, and flattening films are provided in the openings such that the openings are filed with the flattening films.Type: GrantFiled: March 28, 2018Date of Patent: November 22, 2022Assignee: SHARP KABUSHIKI KAISHAInventors: Tohru Okabe, Ryosuke Gunji, Shinji Ichikawa, Kohji Ariga, Shinsuke Saida, Hiroki Taniyama, Hiroharu Jinmura, Yoshihiro Nakada, Koji Tanimura, Yoshihiro Kohara, Akira Inoue
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Patent number: 11495645Abstract: A display apparatus having improved reliability and preventing or reducing damage to an organic light-emitting diode (OLED), and a method of manufacturing the display apparatus by arranging a protective layer on an opposite electrode during a photo-patterning process, are provided. The display apparatus includes: a substrate; a pixel electrode on the substrate; a pixel defining layer on the pixel electrode, the pixel defining layer having a first opening that exposes a center of the pixel electrode; an auxiliary electrode on the pixel defining layer; an intermediate layer on the pixel electrode; an opposite electrode facing the pixel electrode with the intermediate layer therebetween; a first protective layer on the opposite electrode; and a contact electrode on the first protective layer, the contact electrode electrically contacting the auxiliary electrode and the opposite electrode.Type: GrantFiled: March 11, 2020Date of Patent: November 8, 2022Assignee: Samsung Display Co., Ltd.Inventors: Jaeik Kim, Jaesik Kim, Yeonhwa Lee, Joongu Lee
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Patent number: 11495649Abstract: The application relates to the technical field of display, and discloses a display substrate, a method for preparing the same, and a display panel.Type: GrantFiled: March 30, 2020Date of Patent: November 8, 2022Assignees: Ordos Yuansheng Optoelectronics Co., Ltd., BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD.Inventors: Guoping Zhang, Liman Peng, Qianqian Zhang, Qi Liu
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Patent number: 11495465Abstract: A method of forming a semiconductor device includes providing a precursor. The precursor includes a substrate; a gate stack over the substrate; a first dielectric layer over the gate stack; a gate spacer on sidewalls of the gate stack and on sidewalls of the first dielectric layer; and source and drain (S/D) contacts on opposing sides of the gate stack. The method further includes recessing the gate spacer to at least partially expose the sidewalls of the first dielectric layer but not to expose the sidewalls of the gate stack. The method further includes forming a spacer protection layer over the gate spacer, the first dielectric layer, and the S/D contacts.Type: GrantFiled: November 30, 2020Date of Patent: November 8, 2022Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: Chih Wei Lu, Chung-Ju Lee, Hai-Ching Chen, Chien-Hua Huang, Tien-I Bao
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Patent number: 11495653Abstract: An organic light emitting display device includes a substrate having a sub-pixel area and a pad area, a light shielding layer in the sub-pixel area, a thin film transistor on the light shielding layer in the sub-pixel area, a light emitting diode connected to the thin film transistor, a lower pad electrode in the pad area, a first insulating layer covering the lower pad electrode to expose a portion of the lower pad electrode, an upper pad electrode connected to the lower pad electrode, and a second insulating layer between the first insulating layer and the upper pad electrode, the second insulating layer overlapping the upper pad electrode so that an end portion of the second insulating layer coincides with an end portion of the upper pad electrode.Type: GrantFiled: July 8, 2020Date of Patent: November 8, 2022Assignee: LG DISPLAY CO., LTD.Inventors: Hee-Young Kwack, Oh-Young Lee
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Patent number: 11482581Abstract: A display apparatus includes a substrate having a first transmissive area, a second transmissive area, a pixel area between the first transmissive area and the second transmissive area, a first pixel electrode in the pixel area, a first intermediate layer disposed on the first pixel electrode to emit light of a first color and an insulating layer covering edges of the first pixel electrode and defining a first emission area through a first opening exposing a portion of the first pixel electrode. A first partition wall is disposed on the insulating layer between the first emission area and the first transmissive area. A second partition wall is disposed on the insulating layer between the first emission area and the second transmissive area. An opposite electrode is disposed on the first intermediate layer in the pixel area and partially contacts the first partition wall and the second partition wall.Type: GrantFiled: June 15, 2020Date of Patent: October 25, 2022Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jinyeong Kim, Jintaek Kim, Mijin Park, Taehoon Yang, Woonghee Jeong
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Patent number: 11462607Abstract: A display substrate includes: a base substrate having a display area and a peripheral area surrounding the display area; an electroluminescent device disposed on the base substrate and located in the display area, the electroluminescent device including an anode, an electroluminescent layer, and a cathode disposed in this order on the base substrate; a negative power line disposed on the base substrate and located in the peripheral area, the negative power line extending along a side of the base substrate and being electrically connected to the cathode; and an insulating layer between the base substrate and the negative power line, a side of the insulating layer close to the negative power line being provided with at least a trench. The trench is located in the peripheral area and extends in an extending direction of the negative power line, a part of the negative power line being located in the trench.Type: GrantFiled: August 22, 2019Date of Patent: October 4, 2022Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD.Inventors: Shun Zhang, Yonglin Guo, Yuan Yao
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Patent number: 11462600Abstract: A display device of the present disclosure includes a plurality of recess portions provided on a pixel formation surface, and a pixel arranged in each of the plurality of recess portions, in which a light-emitting unit of the pixel is formed on a side wall and a bottom surface of each of the plurality of recess portions. A manufacturing method of a display device of the present disclosure is a manufacturing method of a display device having the above-described configuration. Furthermore, an electronic device of the present disclosure is an electronic device including a display device having the above-described configuration.Type: GrantFiled: April 23, 2019Date of Patent: October 4, 2022Assignee: Sony Semiconductor Solutions CorporationInventor: Tsutomu Shimayama
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Patent number: 11456444Abstract: A display panel, a method for manufacturing the same, and a display device including the display panel are provided. The display panel includes a pixel array and a pigment mixing layer, the pigment mixing layer being located between a pixel driving layer and a light emitting surface of the display panel. The pigment mixing layer includes a mixture formed by a first pigment that absorbs red light, a second pigment that absorbs green light, and a third pigment that absorbs blue light. A proportion of the first pigment in the mixture is 15% to 20%, a proportion of the second pigment in the mixture is 50% to 80%, and a proportion of the third pigment in the mixture is 5% to 20%.Type: GrantFiled: March 6, 2018Date of Patent: September 27, 2022Assignees: Beijing BOE Technology Development Co., Ltd., Chengdu BOE Optoelectronics Technology Co., Ltd.Inventors: Wanli Dong, Youngyik Ko
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Patent number: 11450719Abstract: An organic light-emitting panel, including a substrate, a planarization layer, a reflective layer and a bank layer, is provided. The substrate has a display region and a periphery region beside the display region. The planarization layer is disposed on the substrate and has an indentation. The reflective layer is disposed on the planarization layer. The reflective layer is formed along a sidewall of the indentation. The bank layer is disposed on the planarization layer, covers the indentation, and has a periphery taper surface. The indentation is adjacent to the periphery taper surface and is closer to the display region than the periphery taper surface. A fabrication method of the above organic light-emitting panel is also provided.Type: GrantFiled: September 15, 2020Date of Patent: September 20, 2022Assignee: Au Optronics CorporationInventors: Kuo-Jui Chang, Chien-Sen Weng, Ming-Wei Sun
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Patent number: 11444138Abstract: A display panel, a manufacturing method thereof and a display device are provided. The display panel includes a base substrate, a pixel definition layer, a light emitting layer and a spacer. The pixel definition layer is configured to define each of subpixels in the display panel and includes a groove structure which is disposed between adjacent subpixels, the spacer is disposed in the groove structure, the light emitting layer is disposed on a side of the pixel definition layer and the spacer away from the base substrate, and a thermal expansion efficient of the spacer is greater than a thermal expansion efficient of the light emitting layer.Type: GrantFiled: May 13, 2019Date of Patent: September 13, 2022Assignees: Hefei Xinsheng Optoelectronics Technology Co., Ltd., Beijing BOE Technology Development Co., Ltd.Inventors: Bo Mao, Mengyu Luan, Changjun Jiang, Jun Li, Lang Liu, Zexu Liu, Hongtao Guo
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Patent number: 11437583Abstract: It is an object of the present invention to provide an organic EL device in which, as a highly efficient and highly durable organic EL material, various materials excelling in electron injection/transport performance, hole blocking performance, hole resistance performance, exciton confinement performance, stability in a film state, and durability, are combined so that properties of each material can be effectively demonstrated, thereby achieving (1) high light emission efficiency and power efficiency, (2) low luminescence starting voltage, (3) low practical driving voltage, and (4) particularly long lifetime. An organic EL device including at least a anode, a hole transport layer, a light-emitting layer, a hole blocking layer, an electron transport layer, and a cathode in this order, characterized in that the hole blocking layer includes a compound having a benzoazole structure represented by the following general formula (1).Type: GrantFiled: July 25, 2018Date of Patent: September 6, 2022Assignee: HODOGAYA CHEMICAL CO., LTD.Inventors: Kouki Kase, Naoaki Kabasawa, Shunji Mochizuki, Kazuyuki Suruga
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Patent number: 11430931Abstract: The invention describes a circuit assembly comprising a circuit board with a metal core, a pattern of conductive tracks, and a dielectric layer between the metal core and the conductive tracks; at least one circuit component mounted to the circuit board by means of solder interconnects, wherein a solder interconnect is formed between a contact pad of the circuit component and a conductive track; characterized in that the metal core comprises at least one cavity, wherein a cavity is arranged in the vicinity of a solder interconnect. The invention further describes a circuit board for such a circuit assembly, and a method of manufacturing such a circuit assembly.Type: GrantFiled: October 17, 2019Date of Patent: August 30, 2022Assignee: Lumileds LLCInventor: Barbara Muelders
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Patent number: 11430689Abstract: A semiconducting device utilizing air-gaps for inter-layer insulation and methods of producing the device are described. The device may be produced by forming a sacrificial layer between two structures. A porous membrane layer is then formed over the sacrificial layer. The membrane layer is porous to an etch product, which allows for the subsequent etching of the sacrificial layer leaving an air gap between the device structures and the membrane intact. The device may also include a cap layer formed above the device structures and the membrane.Type: GrantFiled: October 9, 2018Date of Patent: August 30, 2022Assignee: Infineon Technologies LLCInventors: Rinji Sugino, Fei Wang
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Patent number: 11417796Abstract: A light-emitting apparatus can include a reflective cavity that can reflect visible light within the reflective cavity. The reflective cavity can allow the reflected visible light to exit the reflective cavity only at one or more specified emission locations. A visible light-emitting diode can emit visible light into the reflective cavity. An infrared light-emitting diode can emit infrared light into the reflective cavity. A lens can angularly redirect infrared light and visible light that exit the cavity through the one or more emission locations. The reflective cavity can be formed by surfaces at least partially coated with a coating that is reflective for visible light. The coated surfaces can include a circuit board that supports the light-emitting diodes, an incident surface of the lens, and an extension portion of the lens that extends from a flange to the incident surface of the lens.Type: GrantFiled: December 3, 2019Date of Patent: August 16, 2022Assignee: Lumileds LLCInventors: Mehdi Aas, Erno Fancsali, Frans Hubert Konijn, Arjen Gerben Van der Sijde, Nicola Bettina Pfeffer
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Patent number: 11411207Abstract: A display panel and a method of manufacturing the display panel are provided. The display panel includes an array substrate, a pixel definition layer, and spacers. Each of spacers includes a bottom surface and a top surface. A cross-sectional area of the top surface is less than a cross-sectional area of the bottom surface. A horizontal distance from a center to a side of the spacer gradually increases from the top surface to the bottom surface. Moreover, holes of the mask plate corresponding to positions of the spacers are defined, which ensures accuracy of photolithography and display effect of the display panel.Type: GrantFiled: February 20, 2020Date of Patent: August 9, 2022Assignee: Wuhan China Star Optoelectronics Semiconduetor Display Technology Co., Ltd.Inventor: Junjie Wu
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Patent number: 11404332Abstract: The present disclosure provides an array substrate, a fabrication method thereof and a display device. The array substrate includes an insulating layer provided with a first via therein. The array substrate further includes a detection structure including a first conductive structure, a second conductive structure and an insulating structure therebetween. The insulating structure is a portion of the insulating layer. The second conductive structure includes a first portion and a second portion which are separated from each other, and the first portion and the second portion partially overlap with the first conductive structure in a thickness direction of the array substrate, respectively. A second via is provided in the insulating structure between overlapping portions of the first portion and the first conductive structure, and a third via is provided in the insulating structure between overlapping portions of the second portion and the first conductive structure.Type: GrantFiled: January 23, 2018Date of Patent: August 2, 2022Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventor: Binbin Cao
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Patent number: 11404442Abstract: Embodiments of a semiconductor memory device include a substrate having a first region with peripheral devices, a second region with one or more memory arrays, and a third region between the first and the second regions. The semiconductor memory device also includes a protective structure for peripheral devices. The protective structure for peripheral devices of the semiconductor memory device includes a first dielectric layer and a barrier layer disposed on the first dielectric layer. The protective structure for peripheral devices of the semiconductor memory device further includes a dielectric spacer formed on a sidewall of the barrier layer and a sidewall of the first dielectric layer, wherein the protective structure is disposed over the first region and at least a portion of the third region.Type: GrantFiled: July 2, 2020Date of Patent: August 2, 2022Assignee: Yangtze Memory Technologies Co., Ltd.Inventors: Zongliang Huo, Wenbin Zhou, Zhiguo Zhao, Zhaoyun Tang, Hai Lin Xiong
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Patent number: 11404507Abstract: A display substrate, a method for manufacturing the same, and a display device are provided. The method includes: forming a thin film transistor (TFT) array layer on a base substrate; forming a planarization layer covering the TFT array layer; forming a transition layer on the planarization layer, an adhesion between the transition layer and a photoresist is weaker than an adhesion between the planarization layer and the photoresist; forming the photoresist on the transition layer, exposing and developing the photoresist to form a first photoresist pattern; by using the first photoresist pattern as a mask, etching the transition layer to form a first via hole, and etching the planarization layer through the first via hole to form a second via hole, an orthographic projection of the first via hole onto the base substrate overlaps with an orthographic projection of the second via hole onto the base substrate.Type: GrantFiled: April 6, 2020Date of Patent: August 2, 2022Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Guoying Wang, Zhen Song
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Patent number: 11404502Abstract: A display substrate, a manufacturing method thereof and a display panel are provided. The display substrate includes a base and a pixel defining layer provided on the base, the pixel defining layer includes a plurality of sub-pixel regions, and at least one storage tank defined by the pixel defining layer is provided in each of the plurality of sub-pixel regions, and at an identical height with respect to the base, in a length direction of the storage tank, an end portion of the storage tank and a portion between two end portions of the storage tank differ in wettability to a storage material.Type: GrantFiled: August 31, 2018Date of Patent: August 2, 2022Assignees: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventor: Minghung Hsu