Patents Examined by Phuc T. Dang
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Patent number: 11374197Abstract: An organic light emitting diode (OLED) panel includes a thin film transistor (TFT) array substrate, a plurality of OLED devices, and a plurality of isolator assemblies. The TFT array substrate includes a plurality of pixel regions, and the OLED devices disposed on locations corresponding to the pixel regions respectively. The OLED devices include an OLED layer. The isolator assemblies are configured to block the OLED layer of a white light-emitting device from extending to the OLED devices adjacent to the white light-emitting device. By arranging the isolator assemblies around the white light-emitting device, light generated by the white light-emitting device is prevented from leaking.Type: GrantFiled: May 5, 2019Date of Patent: June 28, 2022Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTDInventor: Weijing Zeng
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Patent number: 11374078Abstract: An array substrate, a display panel and a display device are provided. The array substrate includes a plurality of pixel groups arranged as a matrix. The plurality of pixel groups include a plurality of first pixel groups, a plurality of second pixel groups and a plurality of third pixel groups. In odd number rows of pixel groups and odd number columns of pixel groups, the first pixel groups and the second pixel groups are alternately arranged. In even number rows of pixel groups and even number columns of pixel groups, the second pixel groups and the third pixel groups are alternately arranged. Each first pixel group includes two first sub-pixels arranged along a first direction. Each second pixel group includes two second sub-pixels arranged along a second direction; and each third pixel group includes two third sub-pixel groups arranged along the first direction.Type: GrantFiled: June 23, 2020Date of Patent: June 28, 2022Assignees: Wuhan Tianma Micro-Electronics Co., Ltd., Wuhan Tianma Microelectronics Co., Ltd. Shanghai BranchInventor: Yu Xin
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Patent number: 11374098Abstract: A semiconductor device and a process of forming the semiconductor device are disclosed. The semiconductor device type of a high electron mobility transistor (HEMT) has double SiN films on a semiconductor layer, where the first SiN film is formed by the lower pressure chemical vapor deposition (LPCVD) technique, while, the second SiN film is deposited by the plasma assisted CVD (p-CVD) technique. Moreover, the gate electrode has an arrangement of double metals, one of which contains nickel (Ni) as a Schottky metal, while the other is free from Ni and covers the former metal. A feature of the invention is that the first metal is in contact with the semiconductor layer but apart from the second SiN film.Type: GrantFiled: February 19, 2019Date of Patent: June 28, 2022Assignees: SUMITOMO ELECTRIC INDUSTRIES, LTD., SUMITOMO ELECTRIC DEVICE INNOVATIONS, INC.Inventors: Kenta Sugawara, Yukinori Nose
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Patent number: 11367852Abstract: The manufacturing method provided by this application comprises: providing a substrate on which a plurality of pixel defining layers are arranged at intervals; disposing a hole injection layer on the substrate; disposing a hole transport layer on the hole injection layer; disposing an organic light emitting layer on the hole transport layer; disposing an electron transport layer on the organic light emitting layer and the pixel defining layers; and disposing a cathode metal layer on the electron transport layer, wherein the cathode metal layer comprises a first area located above the pixel defining layers; and processing the cathode metal layer in the first area.Type: GrantFiled: September 4, 2020Date of Patent: June 21, 2022Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.Inventor: Zhonghui Du
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Patent number: 11367772Abstract: A display device of the present disclosure includes an organic EL layer formed on a circuit portion, which is formed on a substrate, with an insulating film interposed therebetween, a cathode electrode formed on the organic EL layer in common to all pixels, and a metal wiring provided on an outer peripheral portion of an effective pixel region and electrically connecting the cathode electrode to a wiring of the circuit portion. Then, the metal wiring has a recess or a projection on a contact surface in a connection portion with the cathode electrode. Furthermore, an electronic device according to the present disclosure has the display device having the above configuration.Type: GrantFiled: December 19, 2018Date of Patent: June 21, 2022Assignee: Sony Semiconductor Solutions CorporationInventor: Kouichi Nakamura
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Patent number: 11362156Abstract: The present invention discloses a pixel unit, a manufacturing method, and a display device. The pixel unit includes a first positive electrode layer, a first pixel definition layer disposed on the first positive electrode layer, a second positive electrode layer disposed on the first pixel definition layer, and a second pixel definition layer disposed on the second positive electrode layer such that the first positive electrode layer and the second positive electrode layer are driven individually. The present invention, by employing two anode driving voltages in the same sub-pixel, drives two parts of a light emitting material individually to improve a brightness in a central region such that the entire pixel emits light evenly.Type: GrantFiled: December 16, 2019Date of Patent: June 14, 2022Assignee: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.Inventor: Zhenfei Cai
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Patent number: 11362163Abstract: A display panel, a method for preparing a display panel, and a display device are disclosed. The display panel includes a substrate layer; a light shielding metal layer and a first electrode plate of a storage capacitor on the substrate layer; a buffer layer covering the light shielding metal layer and the first electrode plate on the substrate layer; an active layer and a second electrode plate of the storage capacitor on the buffer layer; a gate insulating layer on the buffer layer and the active layer, and a source, a gate and a drain on the gate insulating layer.Type: GrantFiled: March 10, 2020Date of Patent: June 14, 2022Assignee: Shenzhen China Star Optoelectronics Semiconduetor Display Technology Co., Ltd.Inventor: Jia Tang
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Patent number: 11362166Abstract: A display device includes a substrate including a pixel region and a peripheral region. A plurality of pixels is disposed in the pixel region of the substrate. Each of the plurality of pixels includes a light emitting element. Data lines and scan lines are connected to each of the plurality of pixels. A power line is configured to supply power to the plurality of pixels. The power line includes a plurality of first conductive lines and a plurality of second conductive lines intersecting the plurality of first conductive lines. The plurality of second conductive lines is arranged in a region between adjacent light emitting elements of the plurality of pixels. At least some of the plurality of second conductive lines extend in a direction oblique to a direction of extension of the data lines or the scan lines.Type: GrantFiled: June 23, 2020Date of Patent: June 14, 2022Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Yang Wan Kim, Byung Sun Kim, Jae Yong Lee, Chung Yi, Hyung Jun Park, Su Jin Lee
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Patent number: 11362308Abstract: A display device according to embodiments includes: a display panel that includes a display area that includes a partition layer that includes a first opening through which light is emitted from an organic light emitting diode and a peripheral area around the display area; a touch electrode disposed on the display panel a touch electrode passivation layer that covers the touch electrode and includes a second opening that corresponds to the first opening; and a high refractive index layer that covers the touch electrode passivation layer and the second opening. The touch electrode passivation layer includes an open region formed in a portion that corresponds to the peripheral area, and the touch electrode passivation layer is not formed in the open region.Type: GrantFiled: June 23, 2020Date of Patent: June 14, 2022Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Soon Il Jung, Chi Wook An, Hae Young Yun, Jung-Hyun Cho
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Patent number: 11362278Abstract: An organic light-emitting display panel, a method of forming the same and a display device are provided. The method of forming an organic light-emitting display panel includes: providing a base substrate; forming an auxiliary cathode at a side of the base substrate and forming a pixel defining layer at a side of the auxiliary cathode away from the base substrate; filling a negative thermal expandable ball into the groove; forming a light-emitting layer at the side of the base substrate; performing a heating treatment and a vibrating treatment on the base substrate with the light-emitting layer; and forming a cathode layer at a side of the light-emitting layer away from the base substrate.Type: GrantFiled: September 16, 2020Date of Patent: June 14, 2022Assignees: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Litao Qu, Biao Tian, Jiewei Li, Langlang Ha, Shihlun Chen, Tao Jin, Jieshu Wu
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Patent number: 11355571Abstract: The present disclosure provides an OLED display panel which includes a substrate, a drive circuit layer, a light-emitting functional layer, and a pixel definition layer. The light-emitting functional layer includes a light-emitting area and a non-light-emitting area. The drive circuit layer includes a buffer layer, a first electrode plate, and a second electrode plate, and the first electrode plate and the second electrode plate form a storage capacitor. It solves the technical problem of current OLED display panels having dark stripes by not depositing the first electrode plate when silicon nitride is deposited to form a first buffer layer which prevents ionic gases produced when silicon nitride is deposited from having a reduction reaction with the first electrode plate.Type: GrantFiled: November 20, 2019Date of Patent: June 7, 2022Inventors: Zhenguo Lin, Xingyu Zhou, Yuanjun Hsu
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Patent number: 11355569Abstract: An active device substrate includes a substrate, a silicon layer, a first insulating layer, a first gate, a first dielectric layer, a first transfer electrode, a second transfer electrode, and a second dielectric layer. Two openings penetrate through the first dielectric layer and overlap the silicon layer. The first transfer electrode and the second transfer electrode are respectively located in the two openings. The second dielectric layer is located on the first transfer electrode and the second transfer electrode. Two first through-holes penetrate through the second dielectric layer. The first transfer electrode and the second transfer electrode are etch stop layers of the two first through-holes.Type: GrantFiled: August 24, 2020Date of Patent: June 7, 2022Assignee: Au Optronics CorporationInventors: Chen-Shuo Huang, Hung-Wei Li
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Patent number: 11348987Abstract: An OLED display substrate, a method of manufacturing the OLED display substrate, and a display device are provided. The OLED display substrate includes a plurality of aperture regions arranged in an array on a base substrate; and a plurality of storage capacitors on the base substrate, an orthographic projection of each storage capacitor of the plurality of storage capacitors on the base substrate having an overlapping region with an orthographic projection of an aperture region corresponding to the storage capacitor in the plurality of aperture regions on the base substrate.Type: GrantFiled: May 14, 2019Date of Patent: May 31, 2022Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Jinling Zhang, Fei Deng
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Patent number: 11342404Abstract: An organic light emitting diode display including: a substrate; a TFT on the substrate; a planarization layer on the TFT; a pixel electrode on the planarization layer, wherein the pixel electrode includes upper and lower layers including a transparent conductive oxide and an intermediate layer including silver; an etch stop layer on the pixel electrode, wherein an upper surface of the pixel electrode is exposed by the etch stop layer; a partition on the etch stop layer, wherein the upper surface of the pixel electrode is exposed by the partition; an organic emission layer on the upper surface of the pixel electrode where the upper surface of the pixel electrode is exposed by the etch stop layer and the partition; and a common electrode on the organic emission layer and the partition, wherein the etch stop layer covers an edge and a side surface of the pixel electrode.Type: GrantFiled: June 8, 2020Date of Patent: May 24, 2022Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Kyeong Su Ko, Joon Yong Park, Gyung Min Baek, Hyun Min Cho, Dae Won Choi
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Array substrate and display device each having a data line connecting sub-pixels of different colors
Patent number: 11342386Abstract: An array substrate and a display device are provided. The array substrate includes at least one data line and a plurality of sub-pixel groups arranged in an array along a first direction and a second direction. At least one sub-pixel group includes two rows of sub-pixels, one row of the two rows of sub-pixels includes a first color sub-pixel and a second color sub-pixel, and the other row of the two rows of sub-pixels includes a third color sub-pixel; the first color sub-pixel, the second color sub-pixel and the third color sub-pixel in each sub-pixel group are connected to a same data line of the at least one data line.Type: GrantFiled: May 27, 2019Date of Patent: May 24, 2022Assignees: HEFEI BOE JOINT TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Can Yuan, Yongqian Li, Meng Li, Zhidong Yuan -
Patent number: 11335760Abstract: Display panel, manufacturing method thereof, and display device are provided. As an example, the display panel includes a substrate, a TFT layer formed on the substrate, and an encapsulation layer formed on the TFT layer. The TFT layer includes a thin film transistor with a source electrode, a drain electrode and a gate electrode, and further includes a first metal layer, a first inorganic layer on the first metal layer, and a second metal layer on the first inorganic layer. The second metal layer includes a first region and a second region, a hollowed-out region is formed between the first region and the second region, and the first region and the second region are electrically connected via the first metal layer. A portion of the encapsulation layer that is located in the hollowed-out region is in contact with the first inorganic layer.Type: GrantFiled: June 16, 2020Date of Patent: May 17, 2022Assignee: Yungu (Gu'an) Technology Co., Ltd.Inventors: Ping Zhu, Xueyuan Li, Shengfang Liu, Ying Huang, Qingqing Dong, Lei Lv
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Patent number: 11322550Abstract: An array substrate and a detection method thereof, and a display panel are disclosed. The array substrate includes a plurality of subpixels and a plurality of detection line structures. The plurality of subpixels are arranged in an array of a plurality of rows and a plurality of columns along a first direction and a second direction. Each of the plurality of detection line structures includes at least one first detection line extending along the first direction; adjacent (n)th row and (n+1)th row of subpixels in the array form a subpixel row group, one detection line structure is provided between the (n)th row and (n+1)th row of subpixels in each subpixel row group, and the detection line structure is configured to be connected to the (n)th row and (n+1)th row of subpixels and detect electrical characteristics of first transistors or light-emitting elements in the subpixels.Type: GrantFiled: September 12, 2019Date of Patent: May 3, 2022Assignees: Hefei Xinsheng Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Can Yuan, Yongqian Li, Zhidong Yuan, Meng Li
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Patent number: 11315996Abstract: A display panel and a method of manufacturing thereof are provided. The display panel includes a first thin film transistor and a second thin film transistor connected in parallel, a storage capacitor, and a light emitting structure. A projection of the first thin film transistor on a light emitting surface of the display panel overlaps with a projection of the second thin film transistor on the light emitting surface of the display panel. The storage capacitor is located below the light emitting structure, and a projection of the storage capacitor on the light emitting surface of the display panel overlaps with a projection of the light emitting structure on the light emitting surface of the display panel.Type: GrantFiled: September 10, 2019Date of Patent: April 26, 2022Inventor: Baixiang Han
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Patent number: 11316126Abstract: The present disclosure provides an organic light-emitting diode (OLED) display panel including: a substrate and a cover plate assembled into a cell, and a plurality of auxiliary electrodes formed on a side of the cover plate adjacent to the substrate, the substrate including: a base; a driving circuit layer; a pixel defining layer; a luminescent material layer; and a common electrode, wherein protrusions are provided on a surface of the pixel defining layer away from the driving circuit layer in at least one of the pixel defining regions, and the auxiliary electrodes and the common electrode have at least two electrical connection surfaces in each of the pixel defining regions provided with the protrusions correspondingly. The present disclosure improves connection efficiency of the auxiliary electrodes with the common electrode.Type: GrantFiled: August 5, 2019Date of Patent: April 26, 2022Assignee: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.Inventor: Yang Liu
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Patent number: 11309361Abstract: A display device includes a substrate including a plurality of light-emitting devices, a first color filter, a second color filter, and a third color filter that overlap one of the light-emitting devices, and a first color converting layer that overlaps the first color filter, a second color converting layer that overlaps the second color filter, and a transmission layer that overlaps the third color filter. A plurality of the first color filters, a plurality of the second color filters, and a plurality of the third color filters are arranged in a first direction. A gap between adjacent second color filters in a second direction overlaps the first color filter in the first direction.Type: GrantFiled: December 23, 2019Date of Patent: April 19, 2022Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Kang Moon Jo, Dong Woo Kim, Sung Jae Moon, Jun Hyun Park, An Su Lee