Reflector Patents (Class 349/113)
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Patent number: 11679901Abstract: To provide a sheet-like optical device capable of selectively emitting light whose optical path has a changed orientation. An optical device includes a first sheet and a second sheet. The first sheet is configured to be electrically switchable between a first state in which the first sheet extends along an in-plane direction orthogonal to a thickness direction and has transparency in the thickness direction, and a second state in which the first sheet has lower transparency in the thickness direction than the transparency in the first state. The second sheet has a prism surface on which an inclined surface inclined with respect to the in-plane direction is arranged along the in-plane direction, the second sheet facing the first sheet in the thickness direction.Type: GrantFiled: March 30, 2018Date of Patent: June 20, 2023Assignee: Japan Aerospace Exploration AgencyInventors: Junichiro Kawaguchi, Osamu Mori, Toshihiro Chujo, Hirokazu Ishida
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Patent number: 11640089Abstract: A liquid crystal display device comprises a first substrate; a second substrate opposite the first substrate; a liquid crystal layer between the first substrate and the second substrate; and an active area including: a matrix of first regions; and a plurality of second regions distributed so as not to overlap the first regions, wherein each first region includes a switching element and is supplied with a grayscale signal via the switching element, and the plurality of second regions includes no switching element and is supplied with a common signal.Type: GrantFiled: August 17, 2021Date of Patent: May 2, 2023Assignee: SHARP KABUSHIKI KAISHAInventors: Shogo Suzuki, Junichi Morinaga
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Patent number: 11624959Abstract: A display device includes an array substrate, a second substrate and a black matrix. The array substrate includes a first substrate, at least one electrostatic protecting component and a shielding layer. The first substrate has a display region and a peripheral region located outside the display region. The electrostatic protecting component is disposed on the first substrate in the peripheral region, and the electrostatic protecting component includes a semiconductor layer. The shielding layer includes an insulating material, and the shielding layer is disposed on the first substrate in the peripheral region, wherein the shielding layer overlaps the semiconductor layer. The second substrate is opposite to the first substrate. The black matrix is disposed between the second substrate and the first substrate. The shielding layer is disposed between the black matrix and the first substrate.Type: GrantFiled: February 17, 2021Date of Patent: April 11, 2023Assignee: InnoLux CorporationInventors: Chen-Kuan Kao, Ching-Che Yang
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Patent number: 11609469Abstract: A liquid crystal display panel provided by an embodiment of the application includes an array substrate comprising a display area and a non-display area; a color filter substrate comprising a common electrode, and the common electrode is opposite to the display area and the non-display area; a liquid crystal molecular layer disposed between the array substrate and the color filter substrate; and a voltage alignment circuit electrically connected to the display area and the non-display area correspondingly.Type: GrantFiled: March 20, 2020Date of Patent: March 21, 2023Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventor: Jing Liu
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Patent number: 11605683Abstract: According to an aspect of the present disclosure, an organic light emitting display device includes an organic light emitting display panel including a plurality of sub pixels, a pattern buffer layer disposed on the organic light emitting display panel and patterned so as to overlap at least one sub pixel of the plurality of sub pixels, a color filter layer disposed on the pattern buffer layer and including a plurality of color filters corresponding to the plurality of sub pixels, and a black matrix disposed on the same plane as the pattern buffer layer and dividing the plurality of color filters. Accordingly, generation and spread of cracks when the display device is folded may be effectively suppressed. Therefore, the driveability of the display panel and the reliability of the organic light emitting display device may be improved.Type: GrantFiled: December 23, 2020Date of Patent: March 14, 2023Assignee: LG Display Co., Ltd.Inventors: JeongOk Jo, MinJic Lee, HongSik Kim, Yeseul Han, Kwanghyun Choi
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Patent number: 11604380Abstract: A display device includes a backlight module, a liquid crystal display panel and an optical module. The liquid crystal display panel is disposed on the backlight module. The liquid crystal display panel includes an array substrate, an opposite substrate, a display medium layer, an upper polarizing pattern, and a lower polarizing pattern. The upper polarizing pattern is disposed on the opposite substrate. The lower polarizing pattern is disposed on the array substrate and has a first transmission axis. The optical module is disposed between the backlight module and the liquid crystal display panel. The optical module includes a dual brightness enhancement film. The dual brightness enhancement film has a second transmission axis. The polarization direction of the light after passing through the optical module is different from the polarization direction of the light after passing through the lower polarizing pattern.Type: GrantFiled: July 6, 2021Date of Patent: March 14, 2023Assignee: Au Optronics CorporationInventors: Zong-Huei Tsai, Yu-Wen Lee
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Patent number: 11600576Abstract: The disclosure relates to an array substrate and a method for fabricating an array substrate. The array substrate includes a base substrate, a cover layer on the base substrate, an opening at least partially passing through the cover layer, a stress buffer structure adjacent to the opening and on a side of the cover layer facing the base substrate, wherein the stress buffer structure includes a phase change material, wherein a height of a portion of the cover layer on the phase change material is lower than a height of a portion of the cover layer adjacent to the phase change material.Type: GrantFiled: August 28, 2019Date of Patent: March 7, 2023Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventor: Chengyuan Luo
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Patent number: 11594692Abstract: A display apparatus may include a substrate having a first bending area between a first area and a second area, the first bending area to be bent with a first bending axis that extends along a first direction, as a center; a first inorganic insulating layer on the substrate and having a first opening corresponding to the first bending area; a first organic material layer filling at least a portion of the first opening; and a first conductive layer that extends from the first area to the second area through the first bending area and is on the first organic material layer. The first organic material layer may have a concavo-convex surface at least in a portion of an upper surface thereof. At least a portion of the first conductive layer may extend along a third direction forming an angle of about 0° to about 90° with the first direction.Type: GrantFiled: October 1, 2020Date of Patent: February 28, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Yoonsun Choi, Wonsuk Choi, Cheolsu Kim, Sangjo Lee
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Patent number: 11588122Abstract: A flexible display device including: a display substrate having a display area and a peripheral area surrounding the display area; a plurality of pixels formed in the display area; a passivation layer covering the pixels from the top to protect the pixels; a polarization film layer provided at the top of the passivation layer and of which an edge is extended outside an edge of the passivation layer; and a film wiring made of a flexible material of which one end is connected to the peripheral area.Type: GrantFiled: August 6, 2020Date of Patent: February 21, 2023Assignee: Samsung Display Co., Ltd.Inventors: Jong-Ryuk Park, Hyun-Been Hwang, Sang Hun Oh, Keun Soo Lee, Sun Youl Lee, Gyoo Chui Jo
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Patent number: 11573468Abstract: A display substrate includes a base substrate and a plurality of insulating layers disposed on a surface of the base substrate. A groove is defined in the insulating layers in a non-display area of the display substrate. An end portion of an alignment layer is disposed in the groove. The groove is capable of controlling a flow of a liquid alignment material to prevent the liquid alignment material from overflowing to an edge of the base substrate. The groove is formed simultaneously in a process of forming contact holes in a display area of the display substrate. Accordingly, a structure corresponding to the end portion of the alignment layer to control the flow of the liquid alignment material is formed without increasing the number of masks.Type: GrantFiled: June 9, 2020Date of Patent: February 7, 2023Inventors: SeungBo Shim, Hongmin Yoon, Dasom Kang
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Patent number: 11573451Abstract: The present disclosure relates to display panels. The display panels may include an array substrate. The array substrate may include a base substrate, a reflective layer on a surface of the base substrate, and a plurality of reflective color films distributed at intervals in an array mode on a surface of the reflective layer opposite from the base substrate. The plurality of reflective color films may be configured to enable a light being reflected by the reflective layer and then passing through one of the plurality of the reflective color films to have a color.Type: GrantFiled: May 17, 2018Date of Patent: February 7, 2023Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Shuai Yuan, Xiaona Liu, Yuqiong Chen, Mengjie Wang, Chenchen Wu, Ziyi Zheng
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Patent number: 11537015Abstract: The present disclosure provides an electronic device including a first substrate, a second substrate, a light blocking element, and a transmittance controlling element. The second substrate is opposite to the first substrate. The light blocking element is disposed between the first substrate and the second substrate, and the light blocking element has a light transmitting opening. The light transmitting opening has at least four sides, and adjacent two sides form a round corner. The light transmitting opening overlaps the transmittance controlling element in a normal direction of the first substrate.Type: GrantFiled: January 25, 2021Date of Patent: December 27, 2022Assignee: InnoLux CorporationInventor: Shu-Ming Kuo
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Patent number: 11532645Abstract: An array substrate includes a base, a plurality of thin film transistors, a passivation layer, at least one reflective electrode, and at least one first connecting electrode. The array substrate has a display area. The thin film transistors are disposed in the display area on the base. The passivation layer covers the thin film transistors, and has at least one first via hole in the display area. The reflective electrode is disposed on a surface of the passivation layer facing away from the base, and is disposed in the display area and uncovers the first via hole. The first connecting electrode is disposed on a side of the reflective electrode away from the base. Each first connecting electrode is connected to a corresponding reflective electrode, and is connected to a source or a drain of a corresponding thin film transistor through a corresponding first via hole.Type: GrantFiled: August 31, 2020Date of Patent: December 20, 2022Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Dongmei Wei, Hao Luo, Bo Wu
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Patent number: 11513400Abstract: A pixel array substrate including a substrate, a plurality of pixel structures, and a flat layer is provided. The pixel structures are correspondingly disposed in pixel regions of the substrate. At least one of pixel structure includes an active element, a reflective electrode, and an auxiliary electrode. The reflective electrode is electrically connected to the active element. The auxiliary electrode is electrically connected to the reflective electrode and the active element. A vertical projection of the reflective electrode on the substrate overlaps a vertical projection of the auxiliary electrode on the substrate. An area of the vertical projection of the reflective electrode on the substrate is not greater than an area of the vertical projection of the auxiliary electrode on the substrate. The flat layer is disposed between the auxiliary electrode and the active element. A display device by using the pixel array substrate is also provided.Type: GrantFiled: May 25, 2021Date of Patent: November 29, 2022Assignee: HannStar Display CorporationInventors: Mei-Ling Chou, Yao-Chih Chuang, Chih-Wei Chen, Ming-Chang Yu, Chia-Yu Liu
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Patent number: 11506920Abstract: A display device and a screen anti-peeping device are provided. The display device includes a display panel and the screen anti-peeping device. The display panel includes at least one bonding area, wherein the bonding area is configured to be coupled to an outer lead. The screen anti-peeping device overlaps with the display panel and includes a plurality of electrode sets, wherein each of the electrode sets includes a first electrode and a second electrode. At least one of the electrode sets is selected to be coupled to at least one control lead, and the selected electrode set is misaligned with the bonding area.Type: GrantFiled: February 1, 2021Date of Patent: November 22, 2022Assignee: Coretronic CorporationInventors: Yi-Hsing Peng, Bing-Han Tsai
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Patent number: 11482695Abstract: An organic light emitting display device includes a substrate, a lower electrode, a light emitting layer, an upper electrode, and a light guide structure. The substrate includes a sub-pixel region and a transparent region. The lower electrode is disposed in the sub-pixel region on the substrate. The light emitting layer is disposed on the lower electrode, and includes an organic emission layer. The upper electrode is disposed on the light emitting layer. The light guide structure is disposed on the upper electrode, and partially overlaps the organic emission layer that is located at the sub-pixel region and the substrate that is located at the transparent region in a plan view.Type: GrantFiled: March 13, 2017Date of Patent: October 25, 2022Inventors: Hye-Sog Lee, Jae-Joong Kwon, Yun-Seon Do, Young-Jun Seo
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Patent number: 11482576Abstract: A display device may include a substrate, a display element portion on a surface of the substrate, the display element portion including a plurality of display pixels, a color conversion portion on the display element portion, the color conversion portion including a plurality of banks and a wavelength conversion pattern between the plurality of banks, and a sensor electrode configured to obtain information of a touch input. The sensor electrode may include a first conductive layer arranged on at least a part of a surface of the plurality of banks.Type: GrantFiled: January 20, 2021Date of Patent: October 25, 2022Assignee: Samsung Display Co., Ltd.Inventor: Duk Sung Kim
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Patent number: 11480836Abstract: A liquid crystal on silicon device is described. The liquid crystal on silicon device includes a plurality of mirror electrodes, a transparent electrode, a liquid crystal material, and a plurality of microlenses. The plurality of mirror electrodes are arranged periodically to form an array of pixels, each pixel included in the array of pixels configurable to reflect incident light. The transparent electrode is optically aligned with the plurality of mirror electrodes. The liquid crystal material is disposed between the transparent electrode and the plurality of mirror electrodes. The plurality of microlenses are optically aligned with the plurality of mirror electrodes. Each microlens included in the plurality of microlenses is positioned to focus the incident light on a respective one of the plurality of mirror electrodes.Type: GrantFiled: May 1, 2020Date of Patent: October 25, 2022Assignee: Omnivision Technologies, Inc.Inventors: Alireza Bonakdar, Libo Weng, Badrinath Padmanabhan
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Patent number: 11474398Abstract: An electronic device includes a first substrate, a second substrate disposed opposite to the first substrate, and a third substrate disposed between the first substrate and the second substrate, wherein the third substrate has a first surface closer to the first substrate and a second surface closer to the second substrate. A first alignment layer having a first alignment direction is disposed on a surface of the first substrate. A second alignment layer is disposed on a surface of the second substrate. A third alignment layer having a third alignment direction is disposed on a first surface of the third substrate, and a fourth alignment layer is disposed on the second surface of the third substrate. The third alignment direction is perpendicular to the first alignment direction.Type: GrantFiled: May 14, 2020Date of Patent: October 18, 2022Assignee: InnoLux CorporationInventors: Jen-Hai Chi, Chean Kee
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Patent number: 11462570Abstract: The present application provides a display panel, comprising a display area and a border area disposed at a periphery of the display area, the border area comprising: an array substrate comprising a first substrate and a gate driver on array (GOA) circuit disposed on the first substrate; a color filter substrate comprising a second substrate and a signal trace disposed on the second substrate; wherein the GOA circuit is overlapped with the signal trace. The present application also relates to a display device.Type: GrantFiled: September 29, 2019Date of Patent: October 4, 2022Inventors: Jing Zhu, Tianhong Wang
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Patent number: 11442322Abstract: A light control sheet including a light control layer sandwiched between first and second orientation layers and including a polymer network in which domains are dispersed and filled with a liquid crystal composition including a liquid crystal molecule and a dichroic dye, a pair of transparent electrodes sandwiching the orientation layers, and a polarizing layer positioned on an opposite side of the first orientation layer to the light control layer. The light control layer has a transmittance that increases upon application of a driving voltage to the pair of transparent electrodes. When the driving voltage is not applied between the transparent electrodes, the orientation layers orient the liquid crystal molecule and the dichroic dye horizontally to the orientation layers and orient an orient absorption ax of the dichroic dye to cross an absorption axis of the polarizing layer as viewed in a thickness direction of the light control layer.Type: GrantFiled: May 19, 2020Date of Patent: September 13, 2022Assignee: TOPPAN PRINTING CO., LTD.Inventor: Tetsushi Yoshida
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Patent number: 11442589Abstract: A touch panel and a manufacturing method thereof, a display panel and a display device are described. The touch panel includes a substrate; a touch electrode arranged on the substrate; and a light processing structure arranged on a surface of the touch electrode to scatter light irradiated thereon so as to reduce reflection of light by the surface of the touch electrode. By arranging the light processing structure on the surface of the touch electrode, the touch panel can make light irradiated on the surface of the touch electrode to be scattered so as to reduce reflection of light by the surface of the touch electrode. Thus, display brightness of the display panel that uses said touch panel is increased, and the degree of brightness decline is reduced when the display panel that uses said touch panel is used outdoors.Type: GrantFiled: January 4, 2018Date of Patent: September 13, 2022Assignees: Beijing BOE Technology Development Co., Ltd., Chengdu BOE Optoelectronics Technology Co., Ltd.Inventors: Jibum Yang, Wanli Dong
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Patent number: 11429008Abstract: According to various embodiments, a tunable optical metasurface includes an array of elongated resonator rails arranged parallel to one another. Liquid crystal is positioned within an optical field region between adjacent resonator rails. A controller can selectively apply a voltage differential pattern to the elongated resonator rails to adjust a phase response thereof. According to various embodiments, a cross-backplane reflector is utilized that allows for mid-array routing or edge-array routing of electrical connections between the controller and the resonator rails. The cross-backplane reflector comprises a plurality of elongated optical reflectors extending parallel to one another and perpendicular to the array of resonator rails. An optically transmissive (e.g., transparent) dielectric may electrically separate the resonator rails from the optical reflectors. A pattern of vias formed therein facilitates electrical connections between the optical reflectors and the resonator rails.Type: GrantFiled: March 3, 2022Date of Patent: August 30, 2022Assignee: Lumotive, LLCInventors: Gleb M. Akselrod, Erik Edward Josberger, Mark C. Weidman, Prasad Padmanabha Iyer
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Patent number: 11402695Abstract: A liquid crystal display apparatus having improved viewing angle characteristics in a region vertically asymmetrical. A liquid crystal display apparatus of the present invention includes: a liquid crystal cell including a liquid crystal layer containing liquid crystal molecules aligned in homogeneous alignment under a state in which an electric field is absent; a first polarizer arranged on a viewer side of the liquid crystal cell; a second polarizer arranged on a back surface side of the liquid crystal cell; a first optical compensation layer arranged between the liquid crystal cell and the first polarizer; and a second optical compensation layer arranged between the liquid crystal cell and the first optical compensation layer. A refractive index nz1 in a thickness direction of the first optical compensation layer is less than 1.5187, and a refractive index nz2 in a thickness direction of the second optical compensation layer is less than 1.5340.Type: GrantFiled: April 20, 2018Date of Patent: August 2, 2022Assignee: NITTO DENKO CORPORATIONInventors: Ryo Kawamura, Takehito Fuchida, Katsunori Takada, Yoshitsugu Kitamura
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Patent number: 11385494Abstract: A color filter substrate, a manufacturing method thereof and a display device are provided. The color filter substrate includes: a base substrate; a black matrix on the base substrate, the black matrix including a plurality of openings and a bank surrounding each opening; a color filter layer in each opening; a first planarization layer covering the color filter layer, and the bank protruding relative to the first planarization layer in a direction away from the base substrate; a second planarization layer covering both the first planarization layer and the bank, the second planarization layer including a first surface distal to the base substrate; and a grating layer on the second planarization layer.Type: GrantFiled: September 12, 2019Date of Patent: July 12, 2022Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Yang Yue, Shi Shu, Chuanxiang Xu, Haitao Huang, Xiang Li, Jiangnan Lu, Qi Yao
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Patent number: 11378839Abstract: The present disclosure can provide a transparent display panel, a preparation method thereof and a display device. The transparent display panel includes a bearing layer disposed between a base substrate and a liquid crystal layer and including a plurality of concave structures, and a plurality of reflecting structures located between the bearing layer and the liquid crystal layer, where an orthographic projection of the concave structure on the base substrate covers an orthographic projection of one or more reflecting structures on the base substrate.Type: GrantFiled: March 26, 2021Date of Patent: July 5, 2022Assignee: BOE Technology Group Co., Ltd.Inventors: Xiaoxin Song, Feng Zhang, Wenqu Liu, Zhijun Lv, Liwen Dong, Zhao Cui, Detian Meng, Libo Wang, Dongfei Hou, Qi Yao
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Patent number: 11367761Abstract: A display apparatus includes: a first substrate and a display unit. The display unit includes a display region and a transmissive region. The display unit further includes: an auxiliary layer disposed in correspondence with the transmissive region; and a second electrode disposed in correspondence with the display region and at least a portion of the transmissive region. The auxiliary layer includes a first material, the second electrode includes a second material, and the first material and the second material each satisfy Equation 1 below: <Equation 1> ST2?ST1>0 mJ/m2, wherein, in Equation 1, ST1 is a surface energy of the first material at 25° C., and ST2 is a surface energy of the second material at 25° C.Type: GrantFiled: April 21, 2020Date of Patent: June 21, 2022Assignee: Samsung Display Co., Ltd.Inventors: Jaesik Kim, Joongu Lee, Jaeik Kim, Yeonhwa Lee, Chanho Moon, Sehoon Jeong, Jiyoung Choung
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Patent number: 11353739Abstract: A display device apparatus provides an increased color reproduction rate and/or contrast ratio. The display device includes a first substrate; a second substrate disposed on the first substrate; and a liquid crystal layer arranged between the first substrate and the second substrate. A reflective layer is disposed on the first substrate, a polarizing layer is disposed on one surface of the second substrate, and a metasurface pattern layer is disposed on the second substrate. The metasurface pattern layer includes a third substrate and a first metasurface pattern disposed on the third substrate.Type: GrantFiled: December 21, 2018Date of Patent: June 7, 2022Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Junwoo Yoo, Donghyeon Lee, Sunhee Oh, Taeho Lee
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Patent number: 11327617Abstract: The present disclosure is related to a touch control module. The touch control module may include a plurality of touch control electrodes. At least one of the plurality of touch control electrodes may have a wire grating structure. The wire grating structure may be configured to enable light from the display panel to pass through the at least one of the plurality of touch control electrodes.Type: GrantFiled: April 24, 2018Date of Patent: May 10, 2022Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Jaegeon You, Jikai Yao, Xinxing Wang
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Patent number: 11327359Abstract: Discloses are a display panel, a method of manufacturing the same and a display device. The display panel includes: a first substrate; a second substrate disposed opposite to the first substrate; and a reflective structure group disposed on the first substrate, the reflective structure group includes a plurality of reflective structures in one-to-one correspondence with visual fields of view, and a reflective surface of each reflective structure of the reflective structures faces the second substrate, and the reflective structure is configured to reflect light from the second substrate in a predetermined direction to a corresponding field of view.Type: GrantFiled: June 29, 2018Date of Patent: May 10, 2022Assignees: HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Jian Tao, Wei Xue, Li Sun, Hongmin Li, Liqing Liao
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Patent number: 11322102Abstract: A display device and a display method which can reproduce kinematic parallax and express a high sense of realism without using image display means are provided. The display device includes an image display unit having a stripe structure having subpixels of a plurality of colors disposed so that subpixels of the same color are arranged in a first direction and enabling an observer to observe, through an aperture, an image formed by pixels, each pixel being constituted by the subpixels of a plurality of colors. The aperture has a shape in which areas of the subpixels of the plurality of colors which can be seen through the aperture are uniform, and in which a numerical aperture decreases along a second direction orthogonal to the first direction. A plurality of the apertures are provided so as not to overlap with each other.Type: GrantFiled: June 21, 2019Date of Patent: May 3, 2022Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Munekazu Date, Megumi Isogai, Hideaki Kimata
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Patent number: 11314129Abstract: Provided are a front light source and a display apparatus. The front light source is disposed on a light emitting side of a display panel. The front light source includes: a light guide member and a light emitting member disposed on a light incident side of the light guide member, the light guide member being configured to guide light emitted by the light emitting member onto the display panel; the light emitting member includes: a light source element and a quantum dot element which are disposed on a same layer, the light source element being configured to emit light of a first color, and the quantum dot element being configured to emit light of three colors including three-primary colors under excitation of the light emitted by the light source element, the first color is one of the three-primary colors.Type: GrantFiled: December 25, 2019Date of Patent: April 26, 2022Assignee: BOE Technology Group Co., Ltd.Inventors: Song Yang, Ming Zhu, Shiyu Zhang, Zheng Fang, Ge Shi, Haijun Niu, Yujie Liu, Jiahui Han, Yuyao Wang
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Patent number: 11294116Abstract: A display device and an electronic device are provided. The display device includes a backlight module and a display panel. The backlight module includes a light guide plate, a light source assembly, and a first diffusion film. The light guide plate has a first surface, a second surface disposed opposite to the first surface, and a side surface connected between the first surface and the second surface. The light source assembly is configured to emit light toward the side surface of the light guide plate. The first diffusion film is disposed on the second surface of the light guide plate and close to the light source assembly. The display panel is stacked on the first surface of the light guide plate, the display panel has a display region and a non-display region, and the first diffusion film is configured to diffuse incident light to the display region.Type: GrantFiled: July 7, 2020Date of Patent: April 5, 2022Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.Inventor: Zhibin Ouyang
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Patent number: 11289512Abstract: A substrate includes: a base substrate, a thin film transistor disposed on the base substrate, an organic insulating layer disposed on the thin film transistor, an inorganic passivation layer disposed on the organic insulating layer, and at least a portion of the organic insulating layer which is in contact with the inorganic passivation layer is provided with a concave-convex structure.Type: GrantFiled: December 15, 2017Date of Patent: March 29, 2022Assignees: BOE Technology Group Co., Ltd., Hefei BOE Optoelectronics Technology Co., Ltd.Inventors: Na Zhao, Liyun Deng
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Patent number: 11281018Abstract: The present application discloses a light collimating thin film, an edge-type backlight module, a liquid crystal display device, and a micro light emitting diode display device. The light collimating thin film includes a substrate having a first surface and a second surface which are opposed to each other, and a plurality of conical structures respectively penetrating the substrate. Axes of the plurality of conical structures are respectively perpendicular to the first surface and the second surface.Type: GrantFiled: August 27, 2019Date of Patent: March 22, 2022Assignees: HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Jianwei Qin, Bing Zhang, Liang Gao, Bo Han, Hai Tang, Lu Gao
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Patent number: 11269214Abstract: In a semi-transmission liquid crystal display device, two resist masks are required to form a reflective electrode and a transparent electrode; therefore, cost is high. A transparent electrode and a reflective electrode which function as a pixel electrode are stacked. A resist pattern which includes a region having a thick film thickness and a region having a thinner film thickness than the aforementioned region is formed over the reflective electrode by using a light exposure mask which includes a semi-transmission portion. The reflective electrode and the transparent electrode are formed by using the resist pattern. Therefore, the reflective electrode and the transparent electrode can be formed by using one resist mask.Type: GrantFiled: August 10, 2020Date of Patent: March 8, 2022Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventor: Hajime Kimura
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Patent number: 11259408Abstract: A stretchable contractible wiring sheet includes: stretchable contractible first elastomer sheet; stretchable contractible second elastomer sheet facing and bonded on the first elastomer sheet, and lead that has a transverse section having any cross-sectional shape selected from circular shape, elliptical shape, and track shape, and is plastically deformed in wavy shape periodically curving along longer direction, the lead being interposed between the first elastomer sheet and the second elastomer sheet in a manner that height direction of waves in wavy shape is along in-plane direction of facing surfaces of the first elastomer sheet and second elastomer sheet. The wiring sheet that can be produced easily at low costs, has high flexibility and durability, and undergoes small resistance value change along with stretching and contracting, and stretchable contractible touch sensor sheet.Type: GrantFiled: January 5, 2017Date of Patent: February 22, 2022Assignee: TOKUSEN KOGYO CO., LTD.Inventors: Masato Yamashita, Shin Sumimoto, Manabu Yoshida, Sei Uemura, Taiki Nobeshima
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Patent number: 11231614Abstract: A display panel, a display method thereof, and a display device are provided, which are related to the field of display technology and a reflective e-book with high refresh rate is provided. The display panel includes: a first substrate and a second substrate disposed opposite to each other; a liquid crystal (LC) layer located between the first substrate and the second substrate; a polarizer disposed at a side of the LC layer far away from the second substrate; and an alignment layer disposed at both sides of the LC layer, wherein the second substrate is provided with a reflective layer, the reflective layer is configured to allow incident light transmitting through the first substrate to be reflected at a predetermined color on the reflective layer.Type: GrantFiled: February 28, 2018Date of Patent: January 25, 2022Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Fei Gao, Wenming Ren
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Patent number: 11221539Abstract: A lighting device using a liquid crystal beam modulator produces good broadening of a light beam. The liquid crystal cell has a patterned electrode structure having a pattern of paired electrodes on a first one of a pair of cell substrates for providing a spatially modulated electric field extending into a liquid crystal material, and the cell is arranged with respect to a light source so that an incident beam will arrive through another of the pair of substrates and exit from the first one of the pair of substrates.Type: GrantFiled: September 22, 2017Date of Patent: January 11, 2022Inventors: Tigran Galstian, Karen Asatryan, Armen Zohrabyan, Vladimir Presniakov
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Patent number: 11204527Abstract: The present disclosure relates to the field of display technologies, and specifically discloses a liquid crystal display panel, a driving method therefor and a display device. Specifically, the liquid crystal display panel comprises: a first substrate and a second substrate arranged oppositely, as well as a plurality of liquid crystal diffraction units arranged in a same layer between the first substrate and the second substrate. Each liquid crystal diffraction unit comprises: a first electrode, a second electrode comprising at least one strip sub-electrode, as well as liquid crystal sandwiched between the first electrode and the second electrode. Furthermore, each liquid crystal diffraction unit is configured to change a deflection direction of light passing through each liquid crystal diffraction unit when voltages are applied to the first electrode and the strip sub-electrodes.Type: GrantFiled: December 7, 2017Date of Patent: December 21, 2021Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventor: Jinye Zhu
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Patent number: 11187932Abstract: According to one embodiment, a display device includes a first substrate, a second substrate including a first end portion and a second end portion located at a position different from the first end portion, a polymer dispersed liquid crystal layer disposed between the first substrate and the second substrate, a light source device located above the first substrate and disposed along the first end portion, and a light-shielding member disposed on at least a part of the second end portion.Type: GrantFiled: June 17, 2020Date of Patent: November 30, 2021Assignee: Japan Display Inc.Inventors: Yudai Numata, Kentaro Okuyama
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Patent number: 11187844Abstract: Display device, control method are provided, which includes: light guide plate including light incident side, bottom surface, opposite light exiting surface; light extracting structure, on light exiting or bottom surface, configured to make light propagated in total reflection in light guide plate exit from light exiting surface at predetermined angle; first low refractive index layer, covering light exiting surface, refractive index of which being smaller than that of light guide plate; liquid crystal light adjusting layer, including liquid crystal layer and driving electrodes for driving liquid crystal molecules, on side of first low refractive index layer away from light exiting surface; second low refractive index layer, on side of liquid crystal light adjusting layer away from first low refractive index layer, refractive index of which and refractive index of first low refractive index layer being smaller than initial refractive index of liquid crystal light adjusting layer.Type: GrantFiled: September 16, 2019Date of Patent: November 30, 2021Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Jifeng Tan, Wei Wang, Xiandong Meng, Xianqin Meng, Jian Gao, Wenqing Zhao
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Patent number: 11181774Abstract: An optical film and a display device including the same are disclosed, in which an image of the display device is prevented from being irradiated to an unwanted place and luminance is prevented from being deteriorated. The optical film includes a first base film; a second base film spaced apart from the first base film to face the first base film; an optical pattern arranged between the first base film and the second base film, having an inclined surface inclined at a certain angle; and a reflective member arranged at one side of the optical pattern.Type: GrantFiled: October 1, 2018Date of Patent: November 23, 2021Assignee: LG Display Co., Ltd.Inventors: SeungJu Gwon, HyeokJoon Yoon, SeMin Lee
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Patent number: 11171312Abstract: A display panel and a display device are provided. The display panel includes a substrate, display units, a thin film encapsulation layer, a dispersion layer, a color filter substrate, and a cover plate, wherein the dispersion layer includes dispersion areas and non-dispersion areas, and the dispersion areas consist of several regions of different refractive index.Type: GrantFiled: August 8, 2018Date of Patent: November 9, 2021Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGIES CO., LTD.Inventor: Wenjing Yu
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Patent number: 11169316Abstract: The present disclosure relates to a display panel. The display panel includes: a light guide member, a light extraction member and a modulation member sequentially arranged along a first direction; and wherein the light extraction member is configured to extract light propagating within the light guide member in a collimated manner to one side of the light extraction member away from the light guide member, and the modulation member is configured to modulate a reflectance and transmittance of the light extracted in a collimated manner by the light extraction member within the modulation member.Type: GrantFiled: March 21, 2019Date of Patent: November 9, 2021Assignee: BOE Technology Group Co., Ltd.Inventors: Xiandong Meng, Wei Wang, Xianqin Meng, Jifeng Tan, Qiuyu Ling, Fangzhou Wang, Xiaochuan Chen
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Patent number: 11163200Abstract: Provided is a laminate which can not only control the amount of external light transmitted, but can also be used as a mirror. A laminate 1 comprises: a first liquid crystal member 100; a reflection type polarizing member 200; and a second liquid crystal member 300. The first liquid crystal member has first liquid crystal cells with changing orientation states, and a first absorption type polarizing member.Type: GrantFiled: October 12, 2017Date of Patent: November 2, 2021Assignee: DAI NIPPON PRINTING CO., LTD.Inventors: Yusuke Hagiwara, Yasunori Hayashida, Tomoya Kawashima, Yukihiro Kyouden
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Patent number: 11150517Abstract: Provided is an optical element in which transmission of incident light with an angle in a predetermined direction is allowed and the brightness of transmitted light is high. The optical element is formed using a composition including a liquid crystal compound and has a liquid crystal alignment pattern in which a direction of an optical axis derived from the liquid crystal compound rotates in one direction; and the optically-anisotropic layer has regions in which the optical axis is twisted in a thickness direction of the optically-anisotropic layer and rotates, the regions having different magnitudes of twist angles of the rotation in a plane.Type: GrantFiled: September 28, 2020Date of Patent: October 19, 2021Assignee: FUJIFILM CorporationInventors: Hiroshi Sato, Yukito Saitoh, Ayako Muramatsu, Daisuke Kashiwagi
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Patent number: 11143882Abstract: The present disclosure provides a liquid crystal lens and a display apparatus. The liquid crystal lens includes a first substrate and a second substrate arranged to be opposite to each other, a common electrode being provided on the second substrate; a liquid crystal layer interposed between the first and second substrates and including liquid crystal molecules; liquid crystal lens units, each of which includes a first group of strip-shaped electrodes and a second group of strip-shaped electrodes parallel to each other and spaced apart thereon, upon applying a voltage among the first and second groups, and the common electrode, a planoconvex lens is formed within the liquid crystal molecules between them, wherein each of the first and second groups includes layers of sub-electrodes insulated from each other, the sub-electrodes of the first and second groups are applied with a voltage, so as to adjust symmetry of the planoconvex lens.Type: GrantFiled: January 8, 2020Date of Patent: October 12, 2021Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Haiyan Wang, Hui Li, Yunyun Tian, Zheng Fang, Hyun-Sic Choi
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Patent number: 11144131Abstract: An illuminated module includes a light source assembly, a light guide plate, a filter, and a light-shielding sheet. The light source assembly includes a light-emitting component, the light-emitting component being configured to emit light. The light guide plate is on a traveling route of the light, and has a surface and a microstructure. The filter is located on the surface, and has a first area and a second area, the first area and the second area corresponding to the microstructure, where the first area has a first filter characteristic, the second area has a second filter characteristic, and the first filter characteristic is different from the second filter characteristic. The light-shielding sheet is located on the other side of the light guide plate opposite to the filter, and has a transparent opening corresponding to the microstructure. In addition, an illuminated keyboard is provided.Type: GrantFiled: September 9, 2020Date of Patent: October 12, 2021Assignee: CHICONY POWER TECHNOLOGY CO., LTD.Inventors: Hsuan-Wei Ho, Yi-Cheng Chang
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Patent number: 11126054Abstract: A display panel and a display device are provided. The display panel includes: a lower substrate and an upper substrate cell-assembled together; a light-emitting control layer disposed between the lower substrate and the upper substrate; and a plurality of pixel units defined by a plurality of data lines and gate lines intersected with each other. Each pixel unit includes a plurality of subpixel areas. One or more side surfaces of the lower substrate are configured to receive incidence of the collimated light. The light-emitting control layer is configured to control the light-emitting directions and the light-emitting colors of the subpixel areas, to allow the light-emitting directions of the subpixel areas toward the central portion of the display panel. The light-emitting control layer is also configured to control the display grayscale of the subpixel areas.Type: GrantFiled: September 13, 2017Date of Patent: September 21, 2021Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Wei Wang, Yafeng Yang, Xiaochuan Chen, Xianqin Meng, Jifeng Tan