Patents Examined by Kwang-Su Yang
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Patent number: 11676531Abstract: 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: June 13, 2023Assignee: Samsung Display Co., Ltd.Inventor: Sang-Shin Lee
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Patent number: 11670250Abstract: A decrease in a color gamut in a low gradation region is reduced to improve image quality in a liquid crystal panel. Therefore, a color image signal for a liquid crystal display panel in which a display image is generated by light passing through a rear liquid crystal cell and a front liquid crystal cell is converted into a black-and-white image signal by using a predetermined coefficient. Then, the black-and-white image signal thus obtained is subjected to gradation value conversion so as to become a signal for performing gradation expression in a gradation region set as a gradation range in which a color gamut greatly changes in a case where the front liquid crystal cell is driven by the color image signal, and thus a rear image signal serving as the black-and-white image signal for the rear liquid crystal cell is generated.Type: GrantFiled: November 29, 2021Date of Patent: June 6, 2023Assignee: SONY GROUP CORPORATIONInventor: Hiroaki Kimura
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Patent number: 11663979Abstract: An organic light emitting display device includes pixels, a sensor configured to extract at least one of deviation information of first transistors of the pixels and deterioration information of OLEDs of the pixels in a sensing period, and a converter configured to change a bit of first data input from the outside by using at least one of the deviation information and the deterioration information, and to generate second data, wherein a pixel at an ith horizontal line includes an OLED, a first transistor configured to control an amount of a current that flows from a first power source via the OLED in response to a voltage of a first node, second and third transistors configured to turn on when a scan signal is supplied to an ith scan line, and a fourth transistor configured to turn on when a control signal is supplied to an ith control line.Type: GrantFiled: October 15, 2021Date of Patent: May 30, 2023Assignee: Samsung Display Co., Ltd.Inventors: Hai Jung In, Dong Gyu Kim, Bo Yong Chung
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Patent number: 11662583Abstract: A head mounted display includes a combiner configured to receive display light from a micro-display. The world-facing surface of the combiner has a curvature that corresponds to a user's vision correction prescription. The head mounted display also includes a corrective layer having a second curvature that corresponds to the user's vision correction prescription. The corrective layer is disposed on the eye-facing surface of the combiner such that the focal point of the display light is adjusted for the specific user as the display light exits the combiner towards the user's eye.Type: GrantFiled: October 15, 2020Date of Patent: May 30, 2023Assignee: GOOGLE LLCInventors: Yi Qin, Ozan Cakmakci
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Patent number: 11656460Abstract: The present invention relates to a method of manufacturing an optical device, and provides a method of manufacturing an optical device, which includes: preparing first and second optical elements having a pair of corresponding surfaces; forming a reflective unit on the surface of the first optical element selected from the pair of corresponding surfaces; and forming an optical device by bringing the first and second optical elements into close contact with each other and fastening them to each other.Type: GrantFiled: November 29, 2018Date of Patent: May 23, 2023Assignee: LETINAR CO., LTDInventor: Jeong Hun Ha
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Patent number: 11657767Abstract: Provided are a display device and a driving method thereof. The display device includes: a display panel for displaying an image, based on data signals supplied from data lines; a load controller for determining a scale factor for controlling a target luminance of the image displayed in the display panel, based on a load of first image data input from the outside; and a data driver for outputting data signals to the data lines, corresponding to the first image data corrected using the scale factor. The data driver includes a plurality of data driver chips coupled to at least one data line among the data lines. The load controller determines the scale factor, based on at least one of a total load of the first image data and local loads with respect to the respective data driver chips.Type: GrantFiled: November 29, 2021Date of Patent: May 23, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Ki Hyun Pyun, Sung In Kang, Kyun Ho Kim
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Patent number: 11651731Abstract: 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: May 16, 2023Assignee: Samsung Display Co., Ltd.Inventor: Sang-Shin Lee
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Patent number: 11640063Abstract: Head-mounted virtual and augmented reality display systems include a light projector with one or more emissive micro-displays having a first resolution and a pixel pitch. The projector outputs light forming frames of virtual content having at least a portion associated with a second resolution greater than the first resolution. The projector outputs light forming a first subframe of the rendered frame at the first resolution, and parts of the projector are shifted using actuators, such that physical positions of light output for individual pixels occupy gaps between the old locations of light output for individual pixels. The projector then outputs light forming a second subframe of the rendered frame. The first and second subframes are outputted within the flicker fusion threshold. Advantageously, an emissive micro-display (e.g., micro-LED display) having a low resolution can form a frame having a higher resolution by using the same light emitters to function as multiple pixels of that frame.Type: GrantFiled: December 20, 2019Date of Patent: May 2, 2023Assignee: MAGIC LEAP, INC.Inventors: Jahja I. Trisnadi, Clinton Carlisle, Hyunsun Chung, Timothy Mark Dalrymple
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Patent number: 11635629Abstract: A binding band adjusting device and a head-mounted display device having the binding band adjusting device are provided. The binding band adjusting device includes a support assembly provided with a through hole, a rotating assembly matching the through hole, two side binding bands connected to the rotating assembly, a trigger assembly disposed on the support assembly and used for being triggered by the rotating assembly, and a front-back binding band that can fix with respect to the trigger assembly; when the rotating assembly rotates in different directions with respect to the through hole, the two side binding bands expand and contract with respect to the support assembly; when the rotating assembly moves in the axial direction of the through hole and triggers the trigger assembly, the trigger assembly loosens or clamps the front-back binding band.Type: GrantFiled: December 28, 2018Date of Patent: April 25, 2023Assignee: GOERTEK INC.Inventor: Yuan Xue
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Patent number: 11630632Abstract: A display device includes a tiled display structure including a first display panel, a second display panel adjacent to a first side of the first display panel, a third display panel adjacent to a second side of the first display panel, and a fourth display panel adjacent to a first side of the third display panel and a first side of the second display panel. Each of the first to fourth display panels includes a display area and a pad area, and each of the first to fourth display panels includes a plurality of pixels in the display area. Each of the pixels includes at least two sub-pixels. When viewed in a plan view of the tiled display structure, the at least two sub-pixels included in each of the pixels are repeatedly arranged in a row direction and a column direction on a plane of the tiled display structure.Type: GrantFiled: November 4, 2021Date of Patent: April 18, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Nahyeon Cha, Sunkwun Son, Dong Hee Shin
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Patent number: 11631378Abstract: Driving method of display panel, display panel, and display device are provided. The driving method includes a first-frequency driving mode and a second-frequency driving mode. A first frequency of the first-frequency driving mode is lower than a second frequency of the second-frequency driving mode. In the first-frequency driving mode, a frame time includes a scanning section and a front and rear porch section, and the scanning section and the front and rear porch section are operated in sequence. In the scanning section, sub-pixels of the display panel are scanned, and in the front and rear porch section, the sub-pixels of the display panel are not scanned. The display panel includes data lines. The front and rear porch section corresponding to at least part of a plurality of frames includes at least one compensation section. In a compensation section, a data signal is provided to each data line.Type: GrantFiled: March 15, 2021Date of Patent: April 18, 2023Assignee: XIAMEN TIANMA MICRO-ELECTRONICS CO., LTD.Inventors: Huomei Hua, Rong Chen, Guochang Lai
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Patent number: 11626068Abstract: 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: July 14, 2022Date of Patent: April 11, 2023Assignee: Samsung Display Co., Ltd.Inventor: Sang-Shin Lee
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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: 11626064Abstract: 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: August 28, 2020Date 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
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Patent number: 11615757Abstract: A liquid crystal display device according to the present disclosure includes: a liquid crystal unit including a pixel electrode, a counter electrode facing the pixel electrode, and a liquid crystal layer sealed between the pixel electrode and the counter electrode; a first writing circuit configured to write a positive polarity video signal among video signals whose polarity changes periodically; and a second writing circuit configured to write a negative polarity video signal among the video signals whose polarity changes periodically. The liquid crystal unit, the first writing circuit, and the second writing circuit are provided for each pixel. The first writing circuit and the second writing circuit include transistors having conductivity types different from each other.Type: GrantFiled: April 24, 2019Date of Patent: March 28, 2023Assignee: SONY CORPORATIONInventor: Koichi Amari
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Patent number: 11609432Abstract: Head-mounted virtual and augmented reality display systems include a light projector with one or more emissive micro-displays having a first resolution and a pixel pitch. The projector outputs light forming frames of virtual content having at least a portion associated with a second resolution greater than the first resolution. The projector outputs light forming a first subframe of the rendered frame at the first resolution, and parts of the projector are shifted using actuators, such that physical positions of light output for individual pixels occupy gaps between the old locations of light output for individual pixels. The projector then outputs light forming a second subframe of the rendered frame. The first and second subframes are outputted within the flicker fusion threshold. Advantageously, an emissive micro-display (e.g., micro-LED display) having a low resolution can form a frame having a higher resolution by using the same light emitters to function as multiple pixels of that frame.Type: GrantFiled: December 20, 2019Date of Patent: March 21, 2023Assignee: MAGIC LEAP, INC.Inventors: Jahja I. Trisnadi, Clinton Carlisle, Hyunsun Chung, Timothy Mark Dalrymple
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Patent number: 11609433Abstract: The present disclosure relates to a head-mounted display device, comprising a device body, a front cover and a remote controller, wherein one end of the device body is a display end, the front cover is disposed on the device body and is opposite to the display end, and he front cover and the display end enable a display to be inserted therebetween when in use; and wherein the front cover is provided with a through hole opposite to the display end, in which the remote controller can be received and fixed. One technical effect of the present disclosure is that the remote controller herein is easy to store and can be carried integrally with the device body.Type: GrantFiled: September 19, 2018Date of Patent: March 21, 2023Assignee: Goertek Technology Co. Ltd.Inventors: Li Ding, Guocheng Zhang, Lichao Chen, Xiaofei Zhou, Chongguang Chen, Gang Jing
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Patent number: 11604551Abstract: The present disclose provides a touch control substrate and a display device and relates to the field of touch control technologies. The touch control substrate has a fingerprint recognition area and includes a plurality of touch control electrode units. The touch control electrode unit includes a mesh electrode composed of a plurality of electrode lines, and at least one touch control electrode unit is located in the fingerprint recognition area. The touch control electrode unit in the fingerprint recognition area is divided into a first area and a second area surrounding the first area, and a coverage rate of the plurality of electrode lines in the first area is smaller than a coverage rate of the plurality of electrode lines in the second area.Type: GrantFiled: June 23, 2021Date of Patent: March 14, 2023Assignees: BOE TECHNOLOGY GROUP CO., LTD., Chengdu BOE Optoelectronics Technology Co., Ltd.Inventors: Wei Wang, Yi Zhang, Yang Zeng, Yu Wang
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Patent number: 11598961Abstract: The display apparatus of the present disclosure includes an imaging light generating device and an optical system on which imaging light emitted from the imaging light generating device is incident. The optical system includes a first optical unit having positive power, a second optical unit having a positive power and including a first diffraction element, a third optical unit having positive power, and a fourth optical unit having positive power and including a second diffraction element forming an exit pupil, the first optical unit, the second optical unit, the third optical unit, and the fourth optical unit being aligned in order along an optical path of the imaging light. The second diffraction element is constituted of a volume hologram and has, in a cross-sectional view of the volume hologram, interference fringes continuously varying in pitch and inclination thereof from one end toward another end of the second diffraction element.Type: GrantFiled: August 27, 2020Date of Patent: March 7, 2023Assignee: SEIKO EPSON CORPORATIONInventor: Atsushi Saito