Patents Examined by Mariam Qureshi
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Patent number: 12235458Abstract: A varifocal liquid lens includes a body filled with two different fluids separated by an interface of a variable curvature across a clear aperture of the varifocal liquid lens. At least one of the first or second fluids is birefringent, such that a refractive index difference between the first and second fluids and resulting optical power of the varifocal liquid lens is dependent on polarization of impinging light. At a first light polarization, the first and second fluids may be matched in refractive index, while at a second, orthogonal light polarization, the first and second fluids may be mismatched in refractive index, whereby the first interface between the first and second fluids may have a variable, non-zero optical power for the second polarization while having a substantially non-variable, zero optical power for the first polarization of light.Type: GrantFiled: June 5, 2024Date of Patent: February 25, 2025Assignee: Meta Platforms Technologies, LLCInventors: Afsoon Jamali, Changwon Jang, Sandro Pintz
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Patent number: 12235480Abstract: In some implementations, an optical device includes a one-way mirror formed by a polarization selective mirror and an absorptive polarizer. The absorptive polarizer has a transmission axis aligned with the transmission axis of the reflective polarizer. The one-way mirror may be provided on the world side of a head-mounted display system. Advantageously, the one-way mirror may reflect light from the world, which provides privacy and may improve the cosmetics of the display. In some implementations, the one-way mirror may include one or more of a depolarizer and a pair of opposing waveplates to improve alignment tolerances and reduce reflections to a viewer. In some implementations, the one-way mirror may form a compact integrated structure with a dimmer for reducing light transmitted to the viewer from the world.Type: GrantFiled: February 13, 2024Date of Patent: February 25, 2025Assignee: Magic Leap, Inc.Inventors: Chulwoo Oh, Ravi Kumar Komanduri, David Kleinman, Vaibhav Mathur, David Manly
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Patent number: 12235527Abstract: A display device includes a substrate and a first common electrode layer, a pixel electrode layer and a second common electrode layer which are stacked on the substrate in turn; wherein an orthographic projection of the first common electrode layer on the substrate is at least partially overlapped with an orthographic projection of the pixel electrode layer on the substrate, and a first storage capacitor is formed on an overlapping portion of the first common electrode layer and the pixel electrode layer; an orthographic projection of the second common electrode layer on the substrate is at least partially overlapped with the orthographic projection of the pixel electrode layer on the substrate, and a second storage capacitor is formed on an overlapping portion of the second common electrode layer and the pixel electrode layer.Type: GrantFiled: November 19, 2021Date of Patent: February 25, 2025Assignees: Ordos Yuansheng Optoelectronics Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Peirong Huo, Lei Yao, Xiaogang Zhu, Jingyi Xu, Bo Li
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Patent number: 12235533Abstract: Embodiments of a curved display assembly are disclosed. The assembly includes a glass sheet having first and second major surfaces. The second major surface defines a first curvature of the glass sheet, and the first curvature has a bend axis. The assembly also includes a curved display having a second thickness between first and second display surfaces. The display has a display region and two overhanging edges adjacent to the display region and parallel to the bend axis. A first adhesive bonds the second display surface to the second major surface in the display region. A second adhesive is disposed between each of the two overhanging edges and the second major surface. The second adhesive has a higher elastic modulus than the first adhesive. The overhanging edges each extend a distance outside of the display area that is at least three times the second thickness of the curved display.Type: GrantFiled: September 23, 2020Date of Patent: February 25, 2025Assignee: CORNING INCORPORATEDInventor: Steven Roy Burdette
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Patent number: 12228835Abstract: A display device comprising a spatial light modulator having a display polariser arranged on one side of the spatial light modulator is provided with an additional polariser arranged on the same side as the display polariser and polar control retarders between the additional polariser and the display polariser. The polar control retarders include a liquid crystal retarder having two surface alignment layers disposed adjacent to a layer of liquid crystal material on opposite sides. The surface alignment layers provide alignment in the adjacent liquid crystal material with an in-plane component, wherein the angle of said in-plane component changes monotonically along a predetermined axis across the display device, providing reduction of luminance in directions that are offset from a viewing axis, increasing uniformity in the reduction of luminance in directions that are offset from a viewing axis.Type: GrantFiled: June 30, 2023Date of Patent: February 18, 2025Assignee: ReaID Spark, LLCInventors: Michael G. Robinson, Graham J Woodgate
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Patent number: 12222532Abstract: An optical element includes a three-dimensional structure having a curved surface; and a retardation plate bent along the curved surface. The retardation plate includes a transparent substrate and a liquid crystal layer formed over the transparent substrate. The retardation plate has a slow axis and a fast axis. A glass-transition temperature, Tgne, in a slow axis direction of the retardation plate is higher than a glass-transition temperature, Tgno, in a fast axis direction of the retardation plate.Type: GrantFiled: May 24, 2024Date of Patent: February 11, 2025Assignee: AGC Inc.Inventors: Kenta Sekikawa, Hiromichi Nagayama, So Ishido
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Patent number: 12222594Abstract: The present disclosure relates to display systems and, more particularly, to augmented reality display systems including diffraction grating(s), and methods of fabricating same. A diffraction grating includes a plurality of different diffracting zones having a periodically repeating lateral dimension corresponding to a grating period adapted for light diffraction. The diffraction grating additionally includes a plurality of different liquid crystal layers corresponding to the different diffracting zones. The different liquid crystal layers include liquid crystal molecules that are aligned differently, such that the different diffracting zones have different optical properties associated with light diffraction.Type: GrantFiled: April 30, 2024Date of Patent: February 11, 2025Assignee: Magic Leap, Inc.Inventor: Chulwoo Oh
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Patent number: 12216348Abstract: A display device is provided. A liquid crystal display panel has a first display area and a second display area. When the display device displays, a brightness of the first display area is lower than a brightness of the second display area. The liquid crystal display panel includes a pixel electrode, a common electrode, and an insulating layer disposed between the pixel electrode and the common electrode. A thickness of at least part of the insulating layer in the first display area is greater than a thickness of at least part of the insulating layer in the second display area.Type: GrantFiled: May 25, 2022Date of Patent: February 4, 2025Assignee: GUANGZHOU CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.Inventor: Xiaobin Hu
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Patent number: 12216368Abstract: The present disclosure provides a display panel, including: a first panel and a second panel opposite to the first panel; the first panel includes: gate lines extending along a first direction and data lines extending along a second direction, and the gate lines and the data lines intersect to define pixel regions; the second panel includes: a plurality of support column periodic units arranged in an array along the first direction and the second direction, each support column periodic unit includes a plurality of support columns, and at least a part of the support columns each satisfy: a connection line between the support column and a support column closest thereto extends along a third direction, and an included angle between the third direction and the first direction is not equal to 0°. The present disclosure further provides a display device.Type: GrantFiled: November 29, 2021Date of Patent: February 4, 2025Assignees: Hefei BOE Optoelectronics Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Hui Wang, Yuqi Liu, Qianqian Zhang, Yanni Liu, Yijun Wang, Sheng Wang, Junsheng Chen
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Patent number: 12210233Abstract: An electronic device includes a display panel and a viewing angle control unit disposed opposite to the display panel. The viewing angle control unit includes a first substrate; a second substrate disposed opposite to the first substrate; and a plurality of protrusions disposed between the first substrate and the second substrate, wherein a transmittance of the plurality of protrusions is between about 0.006% and about 1.6%.Type: GrantFiled: January 24, 2024Date of Patent: January 28, 2025Assignee: INNOLUX CORPORATIONInventors: I-Kai Pan, Su-Chen Yen, Ying-Chieh Tsai
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Patent number: 12204213Abstract: The present application discloses a pixel unit of a display panel, a lower substrate of a display panel, and a display panel. The present application by disposing a transparent shielding electrode element connected to a common signal line and extending into the aperture region and making an orthogonal projection of the transparent shielding electrode element on a plane where the common signal line is located at least partially overlap the common signal line, extends a shielding effect provided by the common signal line such that a parasitic capacitor between the pixel electrode and the data line is lowered.Type: GrantFiled: November 4, 2021Date of Patent: January 21, 2025Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Liu Yang, Yi Liu, Chengcai Dong
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Patent number: 12203020Abstract: A color film substrate, a fabrication method therefor, and a display device. The color film substrate comprises a base substrate (1); a black matrix (2) is located on one side of the base substrate (1), the black matrix (2) having a plurality of pixel openings (21); a quantum dot color film layer (31, 32, 33) is located in the pixel openings (21) and comprises an ultraviolet light-curable quantum dot material; and a light conversion structure (4), which is located between a side wall of the black matrix (2) and a side wall of the quantum dot color film layer (31, 32, 33). When a quantum dot solution is UV cured, the light conversion structure (4) may convert ultraviolet light of 395 nm into ultraviolet light that has a shorter wavelength and higher energy.Type: GrantFiled: May 8, 2021Date of Patent: January 21, 2025Assignee: BOE Technology Group Co., Ltd.Inventors: Qian Sun, Qian Jin, Tianhao Lu, Wei Huang
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Patent number: 12204199Abstract: An optical subassembly for switchably focusing or redirecting a light beam may include a polarization element having a polarization-selective beam redirection/focusing property, a first switchable polarization rotator upstream of the polarization element, and a second switchable polarization rotator downstream of the polarization element. A polarizer may be provided immediately downstream of the second switchable polarization rotator. The first and second switchable polarization rotators may be operated in counterphase, so as to mutually offset dependence of angle and wavelength characteristics of the polarization rotators on the switching state of the polarization rotators.Type: GrantFiled: May 1, 2023Date of Patent: January 21, 2025Assignee: Meta Platforms Technologies, LLCInventors: Yu-Jen Wang, Xinyu Zhu, Chulwoo Oh, Sawyer Miller
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Patent number: 12204220Abstract: A display device includes a pixel layer disposed on a base substrate, a first inorganic insulating layer disposed on the pixel layer, a first switch electrode disposed on the first inorganic insulating layer, a liquid crystal layer disposed on the first inorganic insulating layer and the first switch electrode, a second inorganic insulating layer disposed on the liquid crystal layer, and a second switch electrode disposed on the second inorganic insulating layer to face the first switch electrode. The liquid crystal layer converts light emitted from the pixel layer into about 90 degree linearly polarized light by an electric field formed between the first switch electrode and the second switch electrode in the private mode.Type: GrantFiled: September 12, 2022Date of Patent: January 21, 2025Assignee: SAMSUNG DISPLAY CO., LTD.Inventor: Eon Seok Oh
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Patent number: 12204218Abstract: The present invention provides a display panel and a display device. The display panel includes a substrate, sub-pixels, and shared common electrode lines. The sub-pixels are arranged in an array on the substrate, and each sub-pixel includes thin-film transistors. The shared common electrode lines are arranged at intervals on the substrate, and electrically connected to the thin-film transistors. An orthographic projection of each shared common electrode line on the substrate partially overlaps with an orthographic projection of a thin-film transistor on the substrate.Type: GrantFiled: August 5, 2021Date of Patent: January 21, 2025Assignee: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.Inventor: Wei Li
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Patent number: 12204189Abstract: A manufacturing method of a display device, the display device, and a spliced display device are disclosed. The display device includes a liquid crystal display panel (LCD display panel), a plurality of pad units, a plurality of conductive units, and a plurality of mini light-emitting diodes (mini-LEDs). The mini-LEDs are manufactured in a bezel area of the LCD display panel to allow the bezel area of the LCD display panel which does not emit light and display originally to display by the mini-LEDs, thereby improving a screen ratio of the display device and improving product competitiveness of the spliced display device.Type: GrantFiled: December 16, 2021Date of Patent: January 21, 2025Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Jun Zhao, Bin Zhao, Juncheng Xiao, Hongyuan Xu, Huajun Lu
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Patent number: 12196988Abstract: A display substrate and a display device are provided. The display substrate includes a plurality of repeat units. Each of the plurality of repeat units includes one first-color sub-pixel, one second-color sub-pixel pair and one third-color sub-pixel which are arranged in a first direction, the second-color sub-pixel pair includes two second-color sub-pixels arranging in a second direction. Connecting lines of centers of orthographic projections of light-emitting regions of four second-color sub-pixels on the base substrate form a first trapezoid, and at least one edge of the first trapezoid is located outside orthographic projections of light-emitting regions of respective sub-pixels on the base substrate.Type: GrantFiled: February 9, 2024Date of Patent: January 14, 2025Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Fengli Ji, Chang Luo, Jianpeng Wu, Lujiang Huangfu
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Patent number: 12197092Abstract: A light emitting substrate is provided. The light emitting substrate includes a plurality of driver chip sets, a plurality of ground traces, and one or more connection lines. At least one driver chip set includes a plurality of driver chip subsets, at least one driver chip subset includes a plurality of driver chips that are cascaded, and driver chip subsets in a same driver chip set are cascaded. Driver chips in a same driver chip subset are electrically connected to a same ground trace, and different driver chip subsets are respectively connected to different ground traces. Ground traces respectively connected to the driver chip subsets in the same driver chip set are electrically connected by at least one connection line.Type: GrantFiled: February 23, 2022Date of Patent: January 14, 2025Assignees: HEFEI BOE RUISHENG TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Yajun Ma, Zhi Zhang, Li Yin, Zhenzhong Fang, Penghua Wang
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Patent number: 12197055Abstract: Disclosed are a dimmable panel (001) and a display device. The dimmable panel includes a first substrate (101) and a second substrate (102) that are arranged opposite each other; a first electrode (103) and a second electrode (104) that are insulated from each other and located between the first substrate (101) and the second substrate (102), where the first electrode (103) and the second electrode (104) are located in a dimmable area (AA), at least one of the first electrode (103) and the second electrode (104) includes a plurality of strip-shaped electrodes, extension trends of all the strip-shaped electrodes are approximately the same, and orthographic projections of the strip-shaped electrodes on the first substrate (101) do not overlap each other; and a liquid crystal layer (105) located between the first substrate (101) and the second substrate (102), where the liquid crystal layer (105) is located in the dimmable area (AA).Type: GrantFiled: February 28, 2022Date of Patent: January 14, 2025Assignees: Hefei BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Yijun Wang, Yuansheng Zang, Sheng Wang, Hui Wang, Jian Xu, Jie Yang, Ru Zhou, Xufei Xu, Xingkui Guo
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Patent number: 12194711Abstract: This application provides a method for preparing laminated glass sandwiching an electronic device. The device may include a device body, a conductive substrate, a conductive adhesive tape electrode, and a lead-out electrode. The conductive adhesive tape electrode has at least one surface coated with conductive adhesive and is attached to the conductive substrate, the lead-out electrode is placed on the conductive adhesive tape electrode or the conductive substrate and is conductively connected to the conductive adhesive tape electrode. The preparing method may include placing a protective layer on the conductive adhesive tape electrode, covering and sealing the conductive adhesive tape electrode onto the conductive substrate; and sandwiching the electronic device between two glass pieces and pressing the two glass pieces together to form the laminated glass.Type: GrantFiled: September 25, 2023Date of Patent: January 14, 2025Assignee: Furcifer Inc.Inventors: Zhao Chen, Yan Zhou, Jian Wang, Zhimin Fu, Miaozi Li, Yuanyuan Zhang, Min Tang