Lens Or Prism Separate From Projection System (i.e., It Is Not Integral Part Of Illumination System) Patents (Class 349/57)
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Patent number: 11885478Abstract: The purpose of the present invention is to realize a lighting device of thin, low power consumption and small light distribution angle. The present invention takes the following structure to realize the above task: A lighting device having an emitting surface and a bottom opposing to the emitting surface including: a resin, set between the emitting surface and the bottom, having a hole at a center, a reflection block set in the hole at a side of the emitting surface, an LED, which is a light source, set in the hole at a side of the bottom, a space between the LED and the reflection block, in which the resin is contained in a container whose inner surface is a reflecting surface.Type: GrantFiled: September 7, 2022Date of Patent: January 30, 2024Assignee: Japan Display Inc.Inventors: Makoto Hasegawa, Nobuyuki Suzuki, Ken Kagabu
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Patent number: 11750727Abstract: An electronic device is provided. The electronic device includes a housing, a first display slidable through the housing, a portion of the first display being exposed to an outside through the housing, a region of the first display being capable of being changed based on a sliding of the first display through the housing, a second display spaced apart from the exposed portion of the first display and forming a flat surface with the exposed portion of the first display, an optical member positioned on a portion of the second housing associated with the exposed part of the first display; and at least one processor configured to output light through a first portion of the first display associated with the optical member, the light being diffused through the optical member.Type: GrantFiled: June 3, 2021Date of Patent: September 5, 2023Assignee: Samsung Electronics Co., Ltd.Inventors: Myunghoon Kwak, Minsoo Kim, Joungmin Cho, Sanghyuk Park, Kibeom Kim, Teayoung Kim, Hyunggwang Kang, Yangwook Kim, Hyunju Hong
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Patent number: 11635549Abstract: A reflectionless window is disclosed. The reflectionless window comprises: a transparent window; a plurality of first nanocolumns arranged on a first surface of the transparent window; and a plurality of second nanocolumns having a height smaller than that of the first nanocolumns, the plurality of second nanocolumns being arranged on at least one surface selected from the upper surface of the plurality of first nanocolumns and a side surface thereof and being arranged in an area on the first surface of the transparent window in which the plurality of first nanocolumns are not arranged.Type: GrantFiled: December 21, 2017Date of Patent: April 25, 2023Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Young-jae Oh, Chul-ho Cho, Kwang-bok Kim, Seong-je Cho, Youn-joo Song, Hyoung-seon Choi
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Patent number: 11353768Abstract: A hybrid lens includes a transmissive adaptive liquid lens and an optical element including liquid crystals. The adaptive liquid lens includes a layer of optical fluid on a substrate. A focal length of the adaptive liquid lens is adjustable. The optical element including liquid crystals is optically coupled with the adaptive liquid lens. The optical element including liquid crystals is configured to adjust a refractive index across the optical element including liquid crystals in conjunction with adjusting the focal length of the adaptive liquid lens so that the optical element reduces optical artifacts caused by the adaptive liquid lens.Type: GrantFiled: December 29, 2020Date of Patent: June 7, 2022Assignee: Facebook Technologies, LLCInventors: Lu Lu, Andrew John Ouderkirk, Scott Charles McEldowney
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Patent number: 11333820Abstract: An optical film and a backlight module are provided. The optical film includes a first surface and a second surface. The first surface includes a plurality of triangular pyramid structures, the triangular pyramid structure has a vertex, and the vertex extends toward a second surface. The second surface includes a plurality of orthogonal curved structures.Type: GrantFiled: September 17, 2020Date of Patent: May 17, 2022Inventor: Wen-Feng Cheng
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Patent number: 11307461Abstract: Provided is a display device. The display device includes a liquid crystal display panel and an optical film disposed above the liquid crystal display panel, the optical film comprising a first pattern layer having a first refractive index and a second pattern layer having a second refractive index different from the first refractive index and disposed on the first pattern layer. The first pattern layer includes a first base part and a plurality of first protrusions. Each of the first protrusions includes a bottom surface adjacent to the first base part, an upper surface facing the bottom surface, and side surfaces between the bottom surface and the upper surface. Each of the side surfaces is perpendicular to the bottom surface and the upper surface.Type: GrantFiled: March 18, 2020Date of Patent: April 19, 2022Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jongho Son, Young Gu Kim, Jiyun Park, Jongmin Ok, Sun-Young Chang, Hyelim Jang, Baekkyun Jeon, Kyungseon Tak
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Patent number: 11307347Abstract: A device for illuminating a spatial light modulator includes a light source and an optical element. The light source is configured to provide illumination light. The optical element has a first surface, a second surface that is distinct from and non-parallel to the first surface, and a third surface that is distinct from and non-parallel to the first surface and the second surface. The optical element is configured to receive the illumination light at the first surface, propagate the illumination light via total internal reflection, and output the illumination light from the third surface. Also disclosed is a method performed by the device.Type: GrantFiled: May 12, 2020Date of Patent: April 19, 2022Assignee: FACEBOOK TECHNOLOGIES, LLCInventors: Ying Geng, Adrian Travis, Gang Li
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Patent number: 11300787Abstract: A visual field display device for a motor vehicle includes an electrically controllable, planar pixel arrangement, particularly at least one flat screen monitor, for producing a projection light beam having a display content, a reflection-suppressing deflection arrangement arranged on the planar pixel arrangement, including one or more flat reflection surfaces, extending along the planar pixel arrangement at a predetermined, acute angle thereto and parallel to one another, for projecting the generated projection light beam onto a partially transparent, reflective projection pane, particularly a windshield of the motor vehicle. As a result, a virtual display image, shown in a visual field of a user, is generated behind it. The one or the plurality of reflection surfaces are designed on the rear sides thereof in a light-absorbing manner in order to suppress interfering reflections.Type: GrantFiled: June 17, 2019Date of Patent: April 12, 2022Assignee: Bayerische Motoren Werke AktiengesellschaftInventor: Wolfgang-Andreas Huber
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Patent number: 11237306Abstract: An optical substrate including a substrate, a plurality of first nanostructures, and a metal structure is provided. The plurality of first nanostructures are located on the substrate, wherein a surface of the plurality of first nanostructures away from the substrate has a plurality of second nanostructures. The metal structure is located on a surface of the plurality of second nanostructures. A method of fabricating the optical substrate is also provided.Type: GrantFiled: March 11, 2019Date of Patent: February 1, 2022Assignee: National Tsing Hua UniversityInventors: Fan-Gang Tseng, Meng-Ju Pan
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Patent number: 11226433Abstract: Optical films for redirecting light are described, and optical systems, such as display systems, incorporating such optical films are described. The optical film may include a first structured surface including a plurality of prismatic structures, and a second structured surface opposing the first structured surface and including a plurality of microstructures. An effective transmission of the optical film is not more than 1% less than a film with a comparable construction except for a smooth, non-structured second surface.Type: GrantFiled: November 9, 2018Date of Patent: January 18, 2022Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Robert A. Yapel, Joseph T. Aronson, Matthew R. C. Atkinson, Gary T. Boyd, Slah Jendoubi, Mitchell A. F. Johnson, Scott R. Kaytor, Steven H. Kong, Fei Lu, Tri D. Pham, Robert B. Secor, Steven D. Solomonson
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Patent number: 11181781Abstract: A liquid crystal display panel includes a first substrate section that includes a first substrate and pixel electrodes (102). Each pixel electrode (102) includes: a first slitted region (111) in which a plurality of first slits (112A to 112G) extending along a direction parallel to the alignment azimuth of liquid crystal molecules in the first domain are formed; a second slitted region (121) in which a plurality of second slits (122A to 122H) extending along a direction parallel to the alignment azimuth of liquid crystal molecules in the second domain are formed; and a boundary region (131) provided between the first slitted region (111) and the second slitted region (121). No slits are formed in the first and second end portions (131a, 131c) of the boundary region (131), and at least one third slit (132) is formed in the central portion (131b) of the boundary region (131).Type: GrantFiled: March 30, 2018Date of Patent: November 23, 2021Assignees: SAKAI DISPLAY PRODUCTS CORPORATION, SHARP KABUSHIKI KAISHAInventors: Mitsuaki Hirata, Fumikazu Shimoshikiryoh
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Patent number: 11169389Abstract: An optical laminate includes a cholesteric liquid crystal layer and a lenticular lens which is laminated on the cholesteric liquid crystal layer, the cholesteric liquid crystal layer has a plurality of regions which are arranged in a pattern in an arrangement direction of lenses of the lenticular lens and are different from each other in terms of the reflection center wavelength for front incident light, and among the plurality of regions, a region having the shortest reflection center wavelength is disposed at a focus position of the lenticular lens for the front incident light, and among the plurality of regions, a region having a longer reflection center wavelength is disposed further away from the focus position.Type: GrantFiled: March 11, 2019Date of Patent: November 9, 2021Assignee: FUJIFILM CORPORATIONInventors: Yukito Saitoh, Kunihiro Atsumi, Naoyoshi Yamada, Daisuke Kashiwagi, Shigeaki Nimura, Mitsuyoshi Ichihashi, Rie Takasago
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Patent number: 11163190Abstract: A second substrate of an electro-optical device is provided with a first curved surface. A first lens layer covers the first curved surface, and includes a second curved surface at a surface on an electro-optical layer side. A second lens layer covers the second curved surface, and includes a flat surface on the electro-optical layer side. A third lens layer includes a third curved surface on the electro-optical layer side. A fourth lens layer covers the third curved surface, and includes a fourth curved surface on the electro-optical layer side. A fifth lens layer covers the fourth curved surface. Between the second lens layer and the third lens layer, a light shielding member including a partition and a light shielding member for alignment is provided.Type: GrantFiled: February 5, 2021Date of Patent: November 2, 2021Assignee: SEIKO EPSON CORPORATIONInventor: Satoshi Ito
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Patent number: 11079604Abstract: The invention relates to a device for determining the exposure energy during the exposure of an element in an optical system, in particular for microlithography, comprising an optical element, a diffractive structure which has a locally varying grating period, and an intensity sensor arrangement, wherein electromagnetic radiation diffracted at the diffractive structure during operation of the optical system, in at least one order of diffraction, is directed to the intensity sensor arrangement by way of total internal reflection effected in the optical element.Type: GrantFiled: October 1, 2019Date of Patent: August 3, 2021Assignee: Carl Zeiss SMT GmbHInventor: Thomas Frank
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Patent number: 10983388Abstract: Disclosed is a display device capable of preventing a problem related with a bluish image at a lateral viewing angle by the use of optical-path adjustment film on an upper surface of a display panel, wherein the display device may include a display panel, and an optical-path adjustment film on the display panel, wherein the optical-path adjustment film includes a plurality of dome patterns, and a cover layer on the plurality of dome patterns, wherein a refractive index of the plurality of dome patterns is different from a refractive index of the cover layer.Type: GrantFiled: March 8, 2018Date of Patent: April 20, 2021Assignee: LG DISPLAY CO., LTD.Inventors: Eunhee Choi, SeMin Lee, GiBin Kim
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Patent number: 10921497Abstract: Embodiments of the present disclosure relate to a prism film, a backlight module, and a display device. The prism film includes a substrate and a plurality of prisms on a surface of the substrate, each of the plurality of prisms having a triangular cross section, and having a first optical surface, a second optical surface, and a third optical surface that are perpendicular to the triangular cross section, wherein the first optical surface is parallel to the surface of the substrate, the first optical surface and the second optical surface form a first bottom angle, the first optical surface and the third optical surface form a second bottom angle, and at least one of the first bottom angle and the second bottom angle of the plurality of prisms gradually changes.Type: GrantFiled: November 26, 2018Date of Patent: February 16, 2021Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Liangliang Jin, Zezhou Yang, Ruoyu Ma, Qing Liu
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Patent number: 10840273Abstract: A display panel is provided and includes a first data line and a first signal line which are disposed at a display area, a second data line and a second signal line which are disposed at a non-display area. A portion of the second data lines, a portion of the second signal lines, and the first data line or the first signal line are all on a same film layer structure of the display panel.Type: GrantFiled: December 5, 2018Date of Patent: November 17, 2020Assignee: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventor: Zuyou Yang
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Patent number: 10837614Abstract: A lighting device for a vehicle may include: a light source for generating light by an applied power source; and two or more films that allow light generated by the light source to be projected onto a particular shape depending on a pattern. Thermal expansion coefficients of at least two films among the two or more films are different from each other.Type: GrantFiled: December 2, 2019Date of Patent: November 17, 2020Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Tae-Young Choi, Sung-Cheul Jeong
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Patent number: 10831053Abstract: This disclosure provides a display panel, including a first substrate, a second substrate, a liquid crystal layer between them, a first black matrix layer at a side of the first substrate facing the second substrate, a second black matrix layer at a side of the second substrate facing the first substrate, and an electrode layer at a side of at least one of the first substrate and the second substrate facing the liquid crystal layer. Each pixel unit includes at least one pixel portion. A region of the first black matrix layer corresponding to the pixel portion includes a light shielding portion and a light transmission portion, a region of the second black matrix layer corresponding to the light shielding portion is provided with a light through hole, an orthogonal projection of the light shielding portion on the second black matrix layer covers the light through hole.Type: GrantFiled: September 13, 2017Date of Patent: November 10, 2020Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Wenqing Zhao, Xue Dong, Xiaochuan Chen, Haiyan Wang, Chenyu Chen, Zhongxiao Li, Xiaochen Niu, Qian Wang, Jinye Zhu
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Patent number: 10827154Abstract: A display device of the present invention includes a light source apparatus and a rear light transmitting module disposed opposite a first light emitting surface of the light source apparatus. The rear light transmitting module includes a first transmitting layer and a second transmitting layer. The first transmitting layer has a plurality of first prisms arranged side by side and respectively protruding toward the first light emitting surface. The second transmitting layer is overlapped with the first transmitting layer on one side thereof opposite the first light emitting surface, and has a plurality of second prisms arranged side by side and respectively protruding toward the first transmitting layer. A vertical projection range of the first prisms on the first light emitting surface is misaligned with a vertical projection range of the second prisms on the first light emitting surface.Type: GrantFiled: May 15, 2019Date of Patent: November 3, 2020Assignee: AU OPTRONICS CORPORATIONInventors: Jui-Sheng Wu, Tsai-Fen Wu, Ya-Chen Kao
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Patent number: 10821467Abstract: An alignment film coating machine and a coating method are provided. The alignment film coating machine includes an equipment for carrying a substrate, a spray head for spraying PI droplets, and an air knife disposed on the equipment and located on one side of the spray head. The air knife is used for moving along the equipment and blowing uniform impact air curtain to the PI droplets after the spray head sprays the PI droplets on the substrate. By adding the air knife into the alignment film coating machine, the diffusion ability of the PI droplets is improved due to the uniform impact air curtain blown by the air knife. The resistance in diffusion is overcome. The PI droplets enter the via hole. Mura, which is induced by a relatively thicker PI film around the via hole as a result of the accumulation of the PI droplets, is prevented.Type: GrantFiled: December 26, 2017Date of Patent: November 3, 2020Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.Inventors: Xiang Li, Chung-ching Hsieh, Yongchao Zhao
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Patent number: 10775539Abstract: A polarizing plate includes: a polarizer; a pattern layer on one surface of the polarizer, the pattern layer including a first refractive index layer having at least one engraved pattern and a second refractive index layer having a filling pattern filling at least a portion of the engraved pattern, the first refractive index layer having a higher refractive index than the second refractive index layer; and a first protective layer. The polarizing plate has a structure in which the polarizer, the second refractive index layer, the first refractive index layer and the first protective layer are sequentially stacked in that order, or in which the polarizer, the first protective layer, the second refractive index layer and the first refractive index layer are sequentially stacked in that order. The first protective layer includes a base film including at least one resin of triacetylcellulose, polyethylene terephthalate, cyclic olefin polymer, and acrylic resins.Type: GrantFiled: February 24, 2016Date of Patent: September 15, 2020Assignee: Samsung SDI Co., Ltd.Inventors: Seong Hoon Lee, Young Oh, Jeong Ho Lee, Young Hyun Ju
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Patent number: 10761367Abstract: A backlight unit and a display apparatus including the same are disclosed. The backlight unit includes a support member being concave rearward so as to define an interior space, the support member including a central portion defining a central area of a rear surface of the interior space and a side portion extending outward from a peripheral edge of the central portion while being inclined forward, a plurality of light sources disposed on the central portion so as to radiate light, a plurality of lenses respectively disposed on the plurality of light sources so as to disperse light from the light sources, a reflective sheet covering front surfaces of the central portion and the side portion, and a plurality of scattering members disposed on corner portions of the reflective sheet and protruding from the reflective sheet. The display apparatus includes the backlight unit and a display panel disposed in front of the backlight unit.Type: GrantFiled: May 21, 2018Date of Patent: September 1, 2020Assignee: LG ELECTRONICS INC.Inventors: Uihyung Lee, Sojung Kim, Eunseok Kim, Jeonggyu Kim, Juyoung Joung
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Patent number: 10712577Abstract: A tunable polarizing beam splitter receives light, reflects a portion of the light that is linearly polarized in a first direction and transmits a second portion of the light that is linearly polarized in a second direction. The first and second polarization directions can be adjusted by controlling the fast axis of switchable liquid crystals (LCs) in the tunable polarizing beam splitter. The tunable polarizing beam splitter may include interlaced isotropic layers and LC birefringent layers, each LC birefringent layer including integrated switchable LCs. In another example, the tunable polarizing beam splitter includes switchable half wave plates (HWPs) with switchable LCs, and a static beam splitter including interlaced isotropic and birefringent layers.Type: GrantFiled: December 5, 2017Date of Patent: July 14, 2020Assignee: Facebook Technologies, LLCInventors: Wai Sze Tiffany Lam, Yusufu Njoni Bamaxam Sulai, Robin Sharma
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Patent number: 10697615Abstract: A light fixture may include a fixture body configured for attachment to a support structure, such as a ceiling. A fixture housing may be fastened to the fixture body and an electronics board may be attached to an interior of the housing. A lens may be in optical communication with an LED light source on the board and an LCD optic element may be located on a surface of the lens opposite the board. An optical property of light emitted from the light fixture may be based on a current level applied to the LCD optic element. The fixture body may include a cylinder with the fixture housing (which may also be cylindrical) being fastened to a circular surface of the cylinder. The cylinder may include a connector, on the other circular surface of the cylinder or on the rectangular surface of the cylinder, for attachment to the support structure.Type: GrantFiled: May 8, 2019Date of Patent: June 30, 2020Inventor: Hamid Rashidi Doust
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Patent number: 10690833Abstract: The present disclosure provides a light guide plate assembly, a backlight source and a display device. The light guide plate assembly includes at least two light guide plates that are stacked on each other. Refractive indexes of the light guide plates are monotonously changed in a stacking direction of the light guide plates. One side of each light guide plate is provided with a refraction cavity. The refraction cavities of adjacent two light guide plates are disposed in two sides of the light guide plate assembly in a staggered manner. A light scattering layer is disposed at an inner wall that encloses the refraction cavity of each light guide plate.Type: GrantFiled: August 29, 2018Date of Patent: June 23, 2020Assignees: BOE TECHNOLOGY GROUP CO., LTD., BOE OPTICAL SCIENCE AND TECHNOLOGY CO., LTD.Inventor: Qi Zhang
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Patent number: 10620475Abstract: The present disclosure provides a dual-view display panel and a display device. The dual-view display panel includes a backlight source, a liquid crystal grating and a color film layer. The backlight source is configured to provide a collimated light. The liquid crystal grating is provided in a light-exiting direction of the backlight source. The color film layer is provided on a side of the liquid crystal grating away from the backlight source. The color film layer comprises a plurality of first pixel areas and a plurality of second pixel areas. A light-shielding area is provided between the first pixel area and the second pixel area which are adjacent to the light-shielding area. The liquid crystal grating is used to diffract the collimated light emitted by the backlight source to the first pixel area or the second pixel area.Type: GrantFiled: July 6, 2018Date of Patent: April 14, 2020Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventor: Jifeng Tan
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Patent number: 10582616Abstract: Disclosed are a uniformly emitting linear LED light source assembly and a method thereof. The linear LED light source assembly comprises a first light strip, at least one second light strip and at least one connecting board which are all provided with a plurality of LEDs closely arranged at equal intervals, wherein the equal interval is less than 3.5 mm to realize uniform illumination. The connecting board connects the first light strip and the second light strip. The LED closest to the first light strip on the connecting board and the LED closest to the connecting board on the first light strip are formed at the same pitch as the equal interval. In addition, the LED closest to the second light bar on the connecting board and the LED closest to the connecting board on the second light bar are formed at the same pitch as the equal interval.Type: GrantFiled: December 17, 2018Date of Patent: March 3, 2020Assignee: EXCELLENCE OPTOELECTRONICS INC.Inventors: Yen-Cheng Chen, Tse-Wei Chiu, Cheng-Tai Jao
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Patent number: 10564472Abstract: The present application discloses a backlight comprising a surface light source and a beam splitting film provided on a light-exiting surface of the surface light source. A beam splitting structure is provided on a surface of the beam splitting film distal to the surface light source, and the surface of beam splitting film distal to the surface light source is divided into a plurality of beam splitting units. The beam splitting structure in each of the plurality of beam splitting units is capable of splitting light entering a surface of the beam splitting film proximal to the surface light source into at least three light beams each having a different emergent direction and a different wavelength. The present application also discloses a display apparatus having the backlight.Type: GrantFiled: August 30, 2016Date of Patent: February 18, 2020Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Jian Gao, Xue Dong, Xiaochuan Chen, Wenqing Zhao, Pengcheng Lu, Xiaochen Niu
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Patent number: 10209189Abstract: A spectral measurement apparatus for irradiating a sample as a measurement object with excitation light and detecting light to be measured includes a light source generating the excitation light; an integrator having an input opening portion through which the excitation light is input, and an output opening portion from which the light to be measured is output; a housing portion arranged in the integrator and housing the sample; an incidence optical system making the excitation light incident to the sample; a photodetector detecting the light to be measured output from the output opening portion; and an analysis device calculating a quantum yield of the sample, based on a detection value detected by the photodetector, and the excitation light is applied to the sample so as to include the sample.Type: GrantFiled: September 17, 2013Date of Patent: February 19, 2019Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Kengo Suzuki, Kazuya Iguchi, Shigeru Eura, Kenichiro Ikemura
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Patent number: 10203441Abstract: An illuminating device includes a light emitting element constituted of a light emitting diode, and a light guide plate including a light receiving section provided on a side face and opposed to the light emitting element. The light guide plate emits illuminating light from a first surface. The light receiving section includes a plurality of cylindrical lens surfaces each formed of a concave curved surface oriented such that an axial direction of the curved surface is parallel to a thickness direction of the light guide plate, the cylindrical lens surfaces being aligned in a direction orthogonal to the axial direction. The cylindrical lens surface is formed of an arcuate surface having a curvature radius of 0.5 mm or less, and more preferably 0.2 mm or less.Type: GrantFiled: February 17, 2016Date of Patent: February 12, 2019Assignee: E Ink CorporationInventor: Hidekazu Kobayashi
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Patent number: 10175403Abstract: There is provided an optical member that can realize a liquid crystal display apparatus that is excellent in mechanical strength and has high illuminance. An optical member according to an embodiment of the present invention includes a polarizing plate, a reflective polarizer, and a prism sheet in the stated order. The optical member has a reflectance of 70% or more for linearly polarized light having a wavelength of 650 nm entering the reflective polarizer at 45°.Type: GrantFiled: May 7, 2014Date of Patent: January 8, 2019Assignee: NITTO DENKO CORPORATIONInventors: Kozo Nakamura, Shouhei Maezawa, Takehito Fuchida, Hiroyuki Takemoto, Nao Murakami
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Patent number: 10096648Abstract: An integrated circuit system, structure and/or component is provided that includes an integrated electrical power source in a form of a unique, environmentally-friendly energy harvesting element or component. The energy harvesting component provides a mechanism for generating autonomous renewable energy, or a renewable energy supplement, in the integrated circuit system, structure and/or component. The energy harvesting element includes a first conductor layer, a low work function layer, a dielectric layer, and a second conductor layer that are particularly configured to promote electron migration from the low work function layer, through the dielectric layer, to the facing surface of the second conductor layer in a manner that develops an electric potential between the first conductor layer and the second conductor layer. An energy harvesting component includes a plurality of energy harvesting elements electrically connected to one another to increase a power output of the electric harvesting component.Type: GrantFiled: August 31, 2017Date of Patent: October 9, 2018Assignee: Face International CorporationInventor: Clark D Boyd
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Patent number: 10025142Abstract: A display device may include a first substrate, a second substrate opposite the first substrate, a liquid crystal layer between the first substrate and the second substrate, and a pixel electrode disposed on the first substrate and including a plurality of subpixel electrodes. The subpixel electrode may include a horizontal stem electrode, a plurality of vertical stem electrodes, and a plurality of branch electrodes extending from at least one of the horizontal stem electrode and the vertical stem electrodes.Type: GrantFiled: January 30, 2015Date of Patent: July 17, 2018Assignee: Samsung Display Co., Ltd.Inventors: Su Wan Woo, Un Byoll Ko
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Patent number: 10012783Abstract: A lighting system uses an edge lit waveguide. The bottom has a set of elongate light extraction features for out-coupling light from the light guide towards a reflector which reflects light back into the light guide. The top face of the light guide functions as the output for the lighting system. In some examples it has a set of elongate beam shaping features extending substantially orthogonally to the set of light extraction 5 features for beam shaping of light exiting the top face.Type: GrantFiled: April 1, 2016Date of Patent: July 3, 2018Assignee: PHILIPS LIGHTING HOLDING B.V.Inventor: Erik Paul Boonekamp
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Patent number: 10001669Abstract: There is provided an optical member that suppresses the occurrence of moire, and can realize a liquid crystal display apparatus that is excellent in mechanical strength and has high brightness. An optical member according to an embodiment of the present invention includes a polarizing plate, a light diffusion layer, a reflective polarizer, and a prism sheet in the stated order.Type: GrantFiled: April 10, 2013Date of Patent: June 19, 2018Assignee: NITTO DENKO CORPORATIONInventors: Takehito Fuchida, Shouhei Maezawa, Hiroyuki Takemoto, Nao Murakami, Kozo Nakamura
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Patent number: 9923171Abstract: A self-light emitting device and an electrical appliance including the same are provided, in which extracting efficiency of light from a light emitting element, especially in an EL element, can be improved. A light scattering body formed by etching a transparent film is provided on an insulator so that the extracting efficiency of light can be improved, and the self-light emitting device with high efficiency of light emission can be provided.Type: GrantFiled: March 31, 2014Date of Patent: March 20, 2018Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventor: Hajime Kimura
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Patent number: 9904010Abstract: The present invention discloses a PIOS with a high extinction ratio based on slab PhCs which comprises an upper slab PhC and a lower slab PhC connected as a whole; the upper slab PhC is a first square-lattice slab PhC, the unit cell of the first square-lattice slab PhC includes a high-refractive-index rotating square pillar, a single first flat dielectric pillar and a background dielectric; the first flat dielectric pillar includes a high-refractive-index dielectric pipe and a low-refractive-index dielectric, or a high-refractive-index flat films, or a low-refractive-index dielectric; the lower slab PhC is a second square-lattice slab PhC with a complete bandgap, the unit cell of said second square-lattice slab PhC includes a high-refractive-index rotating square pillar, a single second flat dielectric pillar and a background dielectric is a low-refractive-index dielectric; and an normalized frequency of the optical switch is 0.41 to 0.4167.Type: GrantFiled: June 18, 2017Date of Patent: February 27, 2018Assignee: ZHENGBIAO OUYANGInventor: Zhengbiao Ouyang
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Patent number: 9869580Abstract: An optical sensing device for using light to locate objects or features in a field of view comprises a light source; a controllable lens having two states and being controllable between them, for example a multifocal lens having two or more foci for focusing light from the light source; and a sensor able to sense light reflected from an object, to determine information of the object. The use of two or more foci adds dynamic range to optical sensing to allow for reliable detection over a wide range of distances.Type: GrantFiled: November 3, 2016Date of Patent: January 16, 2018Assignee: Facebook, Inc.Inventors: Nadav Grossinger, Nitay Romano, Arnon Gratch
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Patent number: 9851070Abstract: Implementations disclosed herein include optical sheets comprising one or more regions including one or more optical elements. Each of the one or more optical elements includes a plurality of microstructures. The one or more optical elements can be configured to tailor the radiation pattern output from a source of illumination. The one or more optical element can be further configured to impart a visual appearance to the optical sheet that is different from a standard lenticular or prismatic sheet. In various implementations, the one or more regions can be demarcated from each other or the surrounding by borders. The borders of the one or more regions can be configured to form one or more letters, one or more symbols or logos for identification and/or security purposes. Various implementations of the optical sheet can include nano-particles in addition to the optical elements to enhance the aesthetic quality of the optical film.Type: GrantFiled: September 9, 2014Date of Patent: December 26, 2017Assignee: Wavefront Technology, Inc.Inventors: Christopher Chapman Rich, Phillip Christopher Harvey, Eric William Hearn Teather, Joel Mikael Petersen
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Patent number: 9817260Abstract: A display device includes: a display panel including a display surface that displays an image and is exposed to the outside and a rear surface that is opposed to the display surface; a backlight unit formed at a lower part of the display panel and providing light to the display panel; a panel support member disposed between the display panel and the backlight unit and supporting an edge of the display panel; and a magnetic adhesive member disposed between the panel support member and the backlight unit and having magnetism.Type: GrantFiled: June 25, 2015Date of Patent: November 14, 2017Assignee: Samsung Display Co., Ltd.Inventors: Seung-Won Kuk, Chunghui Lee, Du-Yeon Han
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Patent number: 9815921Abstract: The present invention is directed to a construct for promoting absorption of molecules by a cell and the application thereof in drug and gene delivery. The present invention further describes topographical modulation of endocytosis for drug and gene delivery.Type: GrantFiled: September 4, 2012Date of Patent: November 14, 2017Assignees: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH (A*STAR), NATIONAL UNIVERSITY OF SINGAPOREInventors: King Fai Evelyn Yim, Hong Yee Low, Tanu Suryadi Kustandi, Kim Kiat Teo, Seok Hong Goh
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Patent number: 9720274Abstract: A polarization member of a display device includes a polarizing layer which polarizes light; and a light scattering layer which has a first surface which faces the polarizing layer and a second surface, and scatters light received from the polarizing layer, wherein the light scattering layer comprises curved recessed patterns on the first surface.Type: GrantFiled: April 29, 2015Date of Patent: August 1, 2017Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Ju Youn Son, Yong Kyu Kang
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Patent number: 9697776Abstract: An organic light emitting display device includes a storage area, a degradation compensator, and a display driver. The storage area stores accumulated data for a plurality of pixels. The degradation compensator determines degrees of degradation of the pixels based on the accumulated data, selects a flat up mode or a flat down mode, selects a reference pixel based on the selected mode, generates ratios of a maximum emission brightness of the reference pixel to a maximum emission brightness of the pixels as first coefficients, and generates modulated data for the pixels using the first coefficients and margin ratios. The panel driver transforms the modulated data to data voltages for the pixels, adds the modulated data to the accumulated data, and stores the accumulated data in the storage area.Type: GrantFiled: October 7, 2015Date of Patent: July 4, 2017Assignee: Samsung Display Co., Ltd.Inventors: Bongju Jun, Daeun Kang, Jongsik Park
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Patent number: 9568762Abstract: A curved liquid crystal display panel is disclosed. The curved liquid crystal display panel includes a color filter substrate and an array substrate disposed corresponding to the color filter substrate. The array substrate has pixel electrodes disposed thereon. Each of the pixel electrodes has a first side and a second side. A length of the first side is greater than a length of the second side, and a curved direction of the curved liquid crystal display panel is the same as an extending direction of the first side. In the present invention, the curved direction of the curved liquid crystal display panel is arranged to be the same as a long side of each of the pixel electrodes.Type: GrantFiled: December 16, 2014Date of Patent: February 14, 2017Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventor: Chao Ma
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Patent number: 9494798Abstract: A display displays a composite image including element pixels. Each element pixel is formed by arranging, in a direction, pixels respectively extracted from images having different viewpoints. A first optical element includes lenses arrayed in the direction to correspond to the element pixels and emits in parallel light rays emitted from pixels respectively included in the element pixels, for a particular image. A second optical element condenses the light rays. An output circuit selects a pixel of the particular image which is included in a particular element pixel and outputs its pixel value to the display. At this time, a pixel more distant from an optical axis of the second optical element along the direction in the particular image is selected as a distance between the first and second optical elements becomes smaller than a focal length of the second optical element.Type: GrantFiled: January 17, 2014Date of Patent: November 15, 2016Assignee: FUJITSU LIMITEDInventors: Teruyuki Sato, Norihiro Kakuko
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Patent number: 9488877Abstract: An embodiment of the present invention relates to an electrically-driven liquid crystal (LC) lens, which comprises: first electrodes, an electrode group arranged corresponding to each sub-pixel, and a liquid crystal layer disposed between the first electrodes and the electrode groups. Each electrode group includes a plurality of second electrodes; and where the voltages of the second electrodes in each electrode group are progressively increased or decreased from left to right sequentially, light passing through the sub-pixels is deflected to different directions. The electrically-driven LC lens can improve the resolution of 3D liquid crystal display. The embodiment of the present invention further discloses a display device and a 3D display method.Type: GrantFiled: December 12, 2013Date of Patent: November 8, 2016Assignee: BOE Technology Group Co., Ltd.Inventor: Kun Wu
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Patent number: 9417379Abstract: A liquid crystal display device (10) is provided with the following: an LED (17); a liquid crystal panel (11); a light guide plate (16) disposed so as to overlap the liquid crystal panel (11); an optical member (15) disposed between the liquid crystal panel (11) and the light guide plate (16); a holding member (HM) having a frame (13) and a chassis (14) for holding in a sandwiched manner the liquid crystal panel (11), the optical member (15) and the light guide plate (16); a first object of positioning determination unit (33) disposed at the edge of the light guide plate (16); a positioning determination unit (31) disposed on the frame (13) and for determining the position of the light guide plate (16) in a direction following the plate surface by causing uneven engagement of the light guide plate with respect to the first object of positioning determination unit (33); and a light-shielding sheet (35) for blocking direct incidence of light from the first object of positioning determination unit (33) on the liType: GrantFiled: January 25, 2013Date of Patent: August 16, 2016Assignee: SHARP KABUSHIKI KAISHAInventors: Yusuke Masuda, Motomitsu Itoh
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Patent number: 9360701Abstract: In a liquid crystal device, when the local dimming is adopted, at a light guide plate of a lighting device, light guide plate portions having a trapezoidal planar shape where two sides facing each other in the Y-axis direction have different lengths are arranged in the X-axis direction to have reverse orientations in the Y-axis direction. A light emitting element emits the light of a light source from the end surface of the light guide plate portion which is located at a short side into the light guide plate portion. A light scattering surface is installed at the space between the light guide plate portions.Type: GrantFiled: June 10, 2014Date of Patent: June 7, 2016Assignee: SEIKO EPSON CORPORATIONInventor: Yoichi Momose
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Patent number: 9354377Abstract: An illumination device includes a light-emitting element (LEEs); a light guide extending in a forward direction from a first end to a second end to receive at the first end LEE light and to guide the light to the second end, such that divergence of the light received at the first end and divergence of the guided light that reaches the second end are substantially the same; a light divergence modifier optically coupled to the light guide at the second end to receive the guided light, to modify the divergence of the guided light, such that the light provided by the light divergence modifier has a modified divergence different from the divergence of the guided light; and an optical extractor optically coupled to the light divergence modifier, to output into the ambient environment light provided by the light divergence modifier as output light in one or more output angular ranges.Type: GrantFiled: September 17, 2014Date of Patent: May 31, 2016Assignee: Quarkstar LLCInventors: Allan Brent York, Louis Lerman, Ferdinand Schinagl, Wilson Dau, Hans Peter Stormberg