Reflector Having Particular Shape Behind Light Source Patents (Class 349/67)
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Patent number: 12259125Abstract: A display device and a motor vehicle having such a display device is disclosed. The display device has a display panel and a backlight for the display panel. The backlight has a reflector having a plurality of reflectively embodied cavities, and a plurality of light sources in each case arranged in the cavities. Moreover, the backlight has support elements, which are transparent to light emitted by the light sources and protrude at least partially into a gap between the cavities and an optical component arranged below the display panel.Type: GrantFiled: May 19, 2023Date of Patent: March 25, 2025Assignee: Continental Automotive Technologies GmbHInventors: Manrico Joseph, Ralph Neupert
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Patent number: 12174488Abstract: A liquid crystal display device includes a bottom cover; a backlight unit disposed over the bottom cover and including a light source and a reflector sheet; and a liquid crystal panel disposed over the backlight unit, wherein the reflector sheet includes first and second sheet portions adjacent to each other in a first direction and at least one first reflective tape fixing the first and second sheet portions, and wherein the at least one first reflective tape includes a plurality of cutouts extending in a second direction perpendicular to the first direction.Type: GrantFiled: April 24, 2024Date of Patent: December 24, 2024Assignee: LG DISPLAY CO., LTD.Inventors: Sung-Hyun Jung, Chul-Goo Son, Dong-Jun Cho
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Patent number: 12055716Abstract: A HUD system and light source apparatus can be manufactured with miniaturization at low cost. A head-up display apparatus includes: an image display apparatus generating image light to be projected; an optical system performing predetermined correction to the image light emitted from the image display apparatus; and a concave mirror reflecting the image light corrected by the optical system to project it onto a windshield or combiner. The image display apparatus includes: a solid light source; a collimating optical system converting, into parallel light, the light from the solid light source; a lighting optical system configured by an optical member that polarizes a direction of a light beam generated by the collimating optical system and simultaneously expands a width of the light beam; and a display apparatus, the image display apparatus being configured to be arranged across and opposite the optical system on an optical axis of the concave mirror.Type: GrantFiled: June 5, 2023Date of Patent: August 6, 2024Assignee: MAXELL, LTD.Inventors: Toshinori Sugiyama, Koji Hirata, Yasuhiko Kunii, Masahiko Yatsu
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Patent number: 12050381Abstract: A color conversion film for a backlight unit comprising an array of light emitting diodes includes a substantially planar base portion configured to receive light from a light source positioned below the substantially planar base portion. A plurality of three-dimensional structures are configured to extend from the substantially planar base portion in a direction away from the light source, where each of the plurality of three-dimensional structures having at least one sloped surface at an angle ? relative to the substantially planar base portion such that each of the plurality of three-dimensional structures comprises a decreasing cross-section as light travels away from the light source.Type: GrantFiled: November 4, 2022Date of Patent: July 30, 2024Assignee: BrightView Technologies, Inc.Inventors: Kenneth L. Walker, Juhyun J. Lee
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Patent number: 12038636Abstract: A display device including a display panel; a frame at a rear of the display panel; a plurality of light sources disposed on the frame and providing light for the display panel; and a reflective sheet disposed on the frame and reflecting light from the plurality of light sources toward the display panel. Further, the frame includes a flat portion on which the plurality of light sources is disposed; an inclined portion extended from the flat portion toward an edge of the display panel; and a protrusion protruding from the flat portion of the frame toward the display panel between the plurality of light sources, in which the protrusion of the frame passes through the reflective sheet.Type: GrantFiled: March 9, 2023Date of Patent: July 16, 2024Assignee: LG ELECTRONICS INC.Inventors: Hyongil Kil, Sangmin Baek
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Patent number: 12007635Abstract: There is provided a display device having a configuration suitable for increasing a screen size and reducing a thickness while ensuring adequate strength. The display device includes: a frame structure having a plurality of extrusion molded members coupled to one another; a display panel; and an intermediate member attached to the frame structure and holding the display panel.Type: GrantFiled: June 17, 2022Date of Patent: June 11, 2024Assignee: SATURN LICENSING LLCInventor: Nobuki Oshima
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Patent number: 11994772Abstract: A liquid crystal display device includes a bottom cover; a backlight unit disposed over the bottom cover and including a light source and a reflector sheet; and a liquid crystal panel disposed over the backlight unit, wherein the reflector sheet includes first and second sheet portions adjacent to each other in a first direction and at least one first reflective tape fixing the first and second sheet portions, and wherein the at least one first reflective tape includes a plurality of cutouts extending in a second direction perpendicular to the first direction.Type: GrantFiled: September 27, 2023Date of Patent: May 28, 2024Assignee: LG DISPLAY CO., LTD.Inventors: Sung-Hyun Jung, Chul-Goo Son, Dong-Jun Cho
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Patent number: 11947155Abstract: An electronic device with light emitting function includes a casing, a circuit board, a light-shielding member, a first light-guiding member, and a second light-guiding member. The casing has a light-guiding cover plate having a first partial block and a second partial block. The circuit board has a light-emitting element adjacent to the first partial block. The light-shielding member is blocked between the light-emitting element and the first partial block. The first light-guiding member has a first reflective inclination surface at a light-emitting direction of the light-emitting element and configured to reflect a light emitted by the light-emitting element to be a first reflected light which is transmitted toward a direction away from the first partial block. The second light-guiding member has a second reflective inclination surface configured to reflect the first reflected light to be a second reflected light which is irradiated to the second partial block.Type: GrantFiled: August 24, 2023Date of Patent: April 2, 2024Assignee: CHICONY ELECTRONICS CO., LTD.Inventors: Chien-Yueh Chen, Yu-Hsuan Lin
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Patent number: 11899235Abstract: Aspects of embodiments pertain to a display illumination optics for illuminating an image display device of an image generation apparatus, the display illumination optics comprising: a source illumination distributor that includes an illumination waveguide having a front surface and a back surface opposite the front surface and configured to internally direct light along a main direction, wherein the illumination waveguide is configured to distribute the luminance of input illumination light along the main direction of the display illumination optics to obtain, along the main direction, output illumination light of desired luminance.Type: GrantFiled: November 29, 2019Date of Patent: February 13, 2024Assignee: ELBIT SYSTEMS LTD.Inventors: Yosef Arazi, Amitay Rudnick, Assaf Levy-Beeri, Olga Resnik, Dror Oskar
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Patent number: 11874561Abstract: A display apparatus and light source device thereof are provided. The light source device includes an optical dome having a specifically defined shape to be able to maintain an optical profile of a light source. According to the disclosure, a display apparatus includes a printed circuit board (PCB), a light emitting diode (LED) chip mounted on the PCB and configured to emit light, an optical dome formed to enclose the LED chip by being dispensed on the LED chip, and a liquid crystal panel configured to block or pass light output from the LED chip, wherein the optical dome may be formed to satisfy 1.70<r1/r0<1.83 where r0 is a straight distance for light vertically emitted from the LED chip to reach a surface of the optical dome and r1 is a straight distance for maximum output light emitted from the LED chip to reach the surface of the optical dome.Type: GrantFiled: April 29, 2022Date of Patent: January 16, 2024Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Kyungsoo Park, Sungyeol Kim, Chunsoon Park, Kyehoon Lee
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Patent number: 11815764Abstract: To provide a light source device capable of irradiating a liquid crystal display module with light at uniform luminance and a display device including the light source device. A light source device has a rear vessel a front cover, a light source substrate, a plurality of light-emitting diodes, and a light-diffusing plate. The front cover is located over and overlaps the rear vessel. The light source substrate, the plurality of light-emitting diodes, and the light-diffusing plate are accommodated between the rear vessel and the front cover. The plurality of light-emitting diodes is located over the light source substrate. The light-diffusing plate is located over, overlaps, and is spaced away from the plurality of light-emitting diodes. The rear vessel and the front cover each have a bottom plate and a side plate integrated with the bottom plate. In at least one of the rear vessel and the front cover, a portion of the side plate is bent to form a protruding portion overlapping the bottom plate.Type: GrantFiled: March 23, 2020Date of Patent: November 14, 2023Assignee: Japan Display Inc.Inventors: Toshiyuki Tsubota, Ken Sugiyama, Rina Yamamoto
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Patent number: 11810488Abstract: A method of driving a display device. The display device comprises a liquid crystal panel, a display engine and a hologram engine. The liquid crystal display panel comprising a plurality of pixels. The display device comprises a display engine arrange to drive each pixel of the plurality of pixels during each display interval of a plurality of display intervals defined by the display device. Each pixel is driven in accordance with a drive signal. The drive signal may comprise a pixel voltage for each pixel. The display engine is arranged to invert the polarity of the drive signal every display interval. The hologram engine is arranged to send multi-level phase holograms for display to the display engine. The method comprises displaying the multi-level phase holograms in immediately consecutive display intervals without field inversion.Type: GrantFiled: August 17, 2020Date of Patent: November 7, 2023Assignee: Dualitas LtdInventor: Jamieson Christmas
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Patent number: 11774761Abstract: A display apparatus includes a substrate including a plurality of pixel areas spaced from each other, and a plurality of non-pixel areas respectively located between neighboring pixel areas, a plurality of pixel electrodes respectively located in at least a part of the plurality of pixel areas, and a scattering layer on the plurality of pixel electrodes, and including a plurality of non-scattering areas respectively at a central portion of each of the plurality of pixel areas, and a plurality of scattering areas respectively between neighboring non-scattering areas.Type: GrantFiled: July 22, 2022Date of Patent: October 3, 2023Assignee: Samsung Display Co., Ltd.Inventors: Chungsock Choi, Soyoung Lee, Sunyoung Jung, Sanghwan Cho
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Patent number: 11729957Abstract: An electronic device and a shielding film are disclosed herein. The electronic device includes a printed circuit board and at least one electrical component mounted on the printed circuit board. The shielding film is disposed on at least a part of the printed circuit board to block electromagnetic waves generated by the printed circuit board and/or the electronic component. The shielding film includes a plurality of layers, and is attached to at least part of the printed circuit board and contacting an upper side surface of the electronic component, wherein at least part of the shielding film includes a nano-conductive fiber and is electrically connected with a ground part of the printed circuit board through the nano-conductive fiber.Type: GrantFiled: June 16, 2022Date of Patent: August 15, 2023Assignee: Samsung Electronics Co., Ltd.Inventors: Myeonggil Lee, Hyein Park, Jaedeok Lim, Jihye Moon, Cheehwan Yang, Jangsun Yoo, Kwangyong Lee
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Patent number: 11709359Abstract: A HUD system and light source apparatus can be manufactured with miniaturization at low cost. A head-up display apparatus includes: an image display apparatus generating image light to be projected; an optical system performing predetermined correction to the image light emitted from the image display apparatus; and a concave mirror reflecting the image light corrected by the optical system to project it onto a windshield or combiner. The image display apparatus includes: a solid light source; a collimating optical system converting, into parallel light, the light from the solid light source; a lighting optical system configured by an optical member that polarizes a direction of a light beam generated by the collimating optical system and simultaneously expands a width of the light beam; and a display apparatus, the image display apparatus being configured to be arranged across and opposite the optical system on an optical axis of the concave mirror.Type: GrantFiled: December 14, 2020Date of Patent: July 25, 2023Assignee: MAXELL, LTD.Inventors: Toshinori Sugiyama, Koji Hirata, Yasuhiko Kunii, Masahiko Yatsu
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Patent number: 11650457Abstract: A surface light source includes a plurality of light sources, a substrate, a first member disposed on the substrate and including a plurality of recessed first demarcating portions each including a first inclined portion and a first bottom portion and one or more recessed second demarcating portions each including a second inclined portion and a first opening, and a second member overlying a portion of the first member and including a third inclined portion overlapping with the second inclined portion, a fourth inclined portion adjacent to the third inclined portion and not overlapping with the second inclined portion, a second bottom portion located inside the first opening, and a third bottom portion continuous with a lower end of the fourth inclined portion, and the plurality of light sources being respectively disposed on the substrate exposed in the first bottom portion, the second bottom portion, and the third bottom portion.Type: GrantFiled: April 26, 2022Date of Patent: May 16, 2023Assignee: NICHIA CORPORATIONInventors: Koki Shibai, Shimpei Sasaoka, Yoshihiro Sho, Naoya Kashiwagi
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Patent number: 11385394Abstract: A front light source module includes a light guide assembly and a light source assembly. The light guide assembly includes a light guide body and surface optical microstructures. The light guide body includes a first optical surface, a second optical surface opposite to the first optical surface, and a light incident surface. The light incident surface is connected between the first and second optical surfaces. The first optical surface is close to a viewer. The surface optical microstructures are embedded in the light guide body. Each surface optical microstructure includes an inclined surface and a transflective layer. The inclined surface is relatively inclined to the first optical surface or the second optical surface. The transflective layer is disposed on the inclined surface. The light source assembly is disposed beside the light incident surface. A reflective display device adopting the front light source module is also provided.Type: GrantFiled: April 22, 2021Date of Patent: July 12, 2022Assignee: Sichuan Longhua Film Co., Ltd.Inventors: Po-Hung Yao, Yao-Chang Wang
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Patent number: 11353194Abstract: The present invention provides a multifunctional light-control accessory frame, which includes at least three accessory borders and at least three angle joints, the three angle joints connecting the three accessory borders to form a frame. An inverted buckling member for being joined with a lamp body is laterally and perpendicularly disposed on a side wall of the angle joint. A sheet mounting groove for mounting a light-control sheet and a lattice mounting groove for mounting a beam-forming lattice are disposed on the inner side of the accessory border. A light shielding plate mounting area and a filter paper clamping plate mounting area are disposed on the outer side of the accessory border. A light shielding plate quick-mounting structure is mounted on the light shielding plate mounting area, at least two positioning plates are disposed on the light shielding plate mounting area, and the light shielding plate quick-mounting structure is locked onto the positioning plates.Type: GrantFiled: September 8, 2017Date of Patent: June 7, 2022Assignee: Xiamen Fulaishi Film Tools Co., Ltd.Inventor: Qiang Zhan
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Patent number: 11330727Abstract: A display device includes a frame, a display module is provided in the frame, a plurality of press sheets for fixing the display module are provided around the display module. Each press sheet is provided with a positioning part which limits a position of the press sheet in a direction parallel to a display surface of the display module.Type: GrantFiled: December 26, 2019Date of Patent: May 10, 2022Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Deli Fang, Tailiang Li, Shuo Chen, Ken Wen, Yongda Ma, Jian Xu
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Patent number: 11156757Abstract: Optical films are disclosed that include a plurality of interference layers. Each interference layer reflects or transmits light primarily by optical interference. The total number of the interference layers is less than about 1000. For a substantially normally incident light in a predetermined wavelength range, the plurality of interference layers has an average optical transmittance greater than about 85% for a first polarization state, an average optical reflectance greater than about 80% for an orthogonal second polarization state, and an average optical transmittance less than about 0.2% for the second polarization state.Type: GrantFiled: February 13, 2020Date of Patent: October 26, 2021Assignee: 3M Innovative Properties CompanyInventors: Adam D. Haag, Timothy J. Nevitt, Carl A. Stover, Andrew J. Ouderkirk, Robert D. Taylor, Zhaohui Yang
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Patent number: 11029565Abstract: A display panel, a display device, and a method for manufacturing a display panel are provided. The display panel includes first and second substrates, first and second alignment films and a liquid crystal layer extending along a first direction and a second direction and sequentially along a third direction perpendicular to the first direction and the second direction. The liquid crystal layer includes a column of liquid crystal molecules along the third direction, and includes a first liquid crystal molecule closest to the first alignment film and a second liquid crystal molecule closest to the second alignment film. The first liquid crystal molecule and the second liquid crystal molecule have different tilting tendencies with respect to the plane defined by the first direction and the second direction, and form a twist angle.Type: GrantFiled: May 23, 2019Date of Patent: June 8, 2021Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Qian Jia, Jaegeon You, Xinxing Wang, Jikai Yao
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Patent number: 10976619Abstract: A backlight device (illumination device) is provided with LEDs (light sources) and a light-controlling sheet (light-controlling member) that is arranged at the exit side of the outgoing-light path of the LEDs. The light-controlling sheet has a light-transmitting layer that transmits light, first light-shielding sections that are arranged at the LED side of the light-transmitting layer, and a second light-shielding section that is arranged at the opposite side to the first light-shielding section side of the light-transmitting layer. The first light-shielding sections and the second light-shielding section are repeatedly arranged side-by-side in an alternating manner.Type: GrantFiled: October 28, 2019Date of Patent: April 13, 2021Assignee: SHARP KABUSHIKI KAISHAInventors: Hisashi Watanabe, Hirotoshi Yasunaga, Youzou Kyoukane, Takeshi Masuda
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Patent number: 10852585Abstract: The present disclosure relates to a light diffusing lens for a light emitting device, and the light diffusing lens according to an embodiment of the present disclosure includes: a light entering portion concavely formed on a center of a lower surface of a main body; a light emitting portion formed on an upper surface of the main body in a curved shape; a reflection portion formed on the lower surface of the main body along a circumference of the light entering portion; and a flange protruding outward from a lower end of the light emitting portion along an outer circumference of the main body, wherein the flange has a sheet escape recess formed on a lower portion thereof along a circumferential direction to allow an end of a sheet hole of a reflection sheet to escape thereinto, and is formed to be spaced apart from the reflection portion.Type: GrantFiled: October 31, 2019Date of Patent: December 1, 2020Assignee: Molex, LLCInventor: Sung Guk Cho
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Patent number: 10788708Abstract: It is an object to provide a technique capable of enhancing evenness of a planar light. A planar light source device includes a light source, a holding substrate, a light distribution control element having a light incident surface and a light outputting surface, a reflection part reflecting the light which has been reflected in an inner side of the light distribution control element toward the side of the display surface, and a case which houses the light source, the holding substrate, the light distribution control element, and the reflection part. A part opposite to the side of the display surface, in relation to at least the light distribution control element in a region between the light distribution control element and an inner wall of the case, is covered by the reflection part.Type: GrantFiled: July 21, 2017Date of Patent: September 29, 2020Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Tomohiko Sawanaka, Masaaki Takeshima, Saki Maeda, Masayoshi Aoshima, Kengo Nishikawa
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Patent number: 10598925Abstract: A projection device According to the present invention there is provided a projection device (30,50,100) comprising, a light source (31,61) which can provide light beams (32a,b,c 62a,b,c), wherein the light beams (32a,b,c 62a,b,c) can be used to define one or more pixels of a virtual image (48); a MEMS micro mirror (34) which is arranged to receive the light beams (32a,b,c 62a,b,c) provided by the light source (31,61), and wherein the MEMS micro mirror (34) can oscillate about at least one oscillation axis (7,17) to scan the light beams (32a,b,c 62a,b,c); a reflective element (38), which comprises a plurality of convex reflective projections (39), and wherein the reflective element (38) is arranged so that light beams (32a,b,c 62a,b,c) reflected by the MEMS micro mirror (34) are incident on said convex reflective projections (39), so that the light beams (32a,b,c 62a,b,c) are reflected by the convex reflective projections (39); a beam combiner (45,81), wherein the beam combiner is arranged to receive the lighType: GrantFiled: May 10, 2013Date of Patent: March 24, 2020Assignee: North Inc.Inventors: Jonathan Masson, Lucio Kilcher
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Patent number: 10539824Abstract: A color conversion panel includes a substrate, a first color conversion layer and a second color conversion layer disposed on the substrate, a planarization layer covering the first color conversion layer and the second color conversion layer, and a polarization layer disposed on the planarization layer. An outlet from the planarization layer penetrates the polarization layer.Type: GrantFiled: September 20, 2017Date of Patent: January 21, 2020Assignee: Samsung Display Co., Ltd.Inventors: Kwang Ho Lee, Yeo Geon Yoon
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Patent number: 10459270Abstract: A display device includes a display, at least one light source unit, a housing and a reflective sheet. The at least one light source unit has a light source, a diffusing lens that covers the light source, and a substrate to which the light source is mounted. The housing includes an inner surface to which the at least one light source unit is attached. The reflective sheet has a plurality of holes corresponding to the light sources, the reflective sheet being disposed between the substrate and the diffusing lens.Type: GrantFiled: January 4, 2019Date of Patent: October 29, 2019Assignee: FUNAI ELECTRIC CO., LTD.Inventors: Yasuyuki Fukumoto, Akihiro Fujikawa, Akira Yokawa
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Patent number: 10381417Abstract: A white light-emitting device is capable of correcting deviations in chromaticity and includes a plurality of pixels, each of the plurality of pixels includes at least two sub-pixels, and each of the sub-pixels is a white light-emitting element. At least one sub-pixel out of the at least two sub-pixels includes a color filter. The optical characteristic of the color filter is set to correct the deviation of chromaticity of light emitted by the white light-emitting element. The white light-emitting device further controls an emission intensity of each of the white light-emitting elements.Type: GrantFiled: June 6, 2016Date of Patent: August 13, 2019Assignee: V. Technology Co., Ltd.Inventors: Koichi Kajiyama, Michinobu Mizumura, Yuya Fujimori
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Patent number: 10371885Abstract: A backlight module is disclosed. The backlight module includes a reflection sheet including a first body and a second body; a light guide plate disposed on the first body of the reflection sheet; an optical film set disposed on the light guide plate; a plastic frame inside of which the reflection sheet, the light guide plate, and the optical film set are all disposed; and a connecting member configured to fixedly bond the second body to an inner side surface of the plastic frame. The present invention can ensure that the reflection sheet is fixedly bonded on the plastic frame well so that not only can a narrow frame design be achieved, but also the optical films can meet the requirement of fixing strength.Type: GrantFiled: April 15, 2015Date of Patent: August 6, 2019Assignees: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD., WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Jie Zeng, Wei Guo
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Patent number: 10330975Abstract: The present application discloses a reflective display panel, a driving method thereof, a control method of a pixel unit and a reflective display device. The reflective display panel comprises: a base substrate, a reflective layer, first and second electrode layers, wherein the first electrode layer is on a side of the reflective layer distal to the base substrate, the second electrode layer is on a side of the first electrode layer distal to the base substrate and insulated from the first electrode layer, materials of the first and second electrode layers are each an electro-optic material, and orthogonal projections of the second and first electrode layers on the base substrate have overlapping areas corresponding to the pixel units.Type: GrantFiled: October 26, 2017Date of Patent: June 25, 2019Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Zhihe Jin, Seungwoo Han, Mingfu Han, Xing Yao, Guangliang Shang, Zhichong Wang, Lijun Yuan, Haoliang Zheng, Yunsik Im
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Patent number: 10165926Abstract: A dishwasher includes a washing chamber exposed to liquid during washing operation and enclosed by a plurality of walls of a washing container and by an internal wall of a door. At least one of the walls has at least one aperture which is covered or closed by at least one illumination element. The at least one illumination element includes at least one planar lighting element and at least one transparent, translucent or reflective planar element associated to the planar lighting element.Type: GrantFiled: April 10, 2014Date of Patent: January 1, 2019Assignee: BSH Hausgeräte GmbHInventors: Marco Gleixner, Franz Kiechle, Karlheinz Rehm
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Patent number: 10139653Abstract: A convex display including a first substrate, a second substrate, a display medium, a color filter layer, an optical film and an active device layer is provided. The second substrate is disposed opposite to the first substrate. The display medium is disposed between the first substrate and the second substrate. The color filter layer is disposed on the first substrate. The active device layer is disposed on the first substrate or the second substrate. The optical film is disposed on the first substrate. The optical film is farther away from the display medium than the color filter. The optical film includes a base material and optical microstructures embedded in the base material, wherein a refractive index of each of the optical microstructures is larger than a refractive index of the base material.Type: GrantFiled: September 11, 2017Date of Patent: November 27, 2018Assignee: GIANTPLUS TECHNOLOGY CO., LTD.Inventors: Chih-Teng Huang, Hsin-Yu Han, He-Guei Chen, Hsiao-Ching Shen
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Patent number: 10042201Abstract: The present invention provides a liquid crystal display device having a high transmittance and excellent visibility in a bright place. The liquid crystal display device of the present invention includes, in the given order, a backlight, a first circular polarizer, a liquid crystal panel, and a second circular polarizer. The first circular polarizer is a reflective circular polarizer including a reflective linear polarizer and a ?/4 plate disposed adjacent to the reflective linear polarizer. The liquid crystal display device satisfies (1) the liquid crystal panel is provided with color filters of two or more colors and has an aperture ratio lower than 43%, or (2) the liquid crystal panel is provided with no color filter and has an aperture ratio of 39% or lower.Type: GrantFiled: November 26, 2015Date of Patent: August 7, 2018Assignee: SHARP KABUSHIKI KAISHAInventors: Akira Sakai, Hiroyuki Hakoi, Kozo Nakamura, Kiyoshi Minoura
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Patent number: 10042205Abstract: A backlight module includes a light guide plate, a plurality of light transmission elements and a light source. The light guide plate has at least one light incident surface, and the light transmission elements are disposed near the light incident surface and aligned to from at least one light transmission element row. The light source is disposed near one end of the light transmission element row and capable of emitting a light beam to the light transmission element row. Each of the light transmission elements reflects a part of the light beam to the light guide plate to form multiple independent light reflection paths, and the light transmission elements successively transmits a part of the light beam to form a light transmission path in the light transmission element row.Type: GrantFiled: June 13, 2017Date of Patent: August 7, 2018Assignee: Young Lighting Technology, Inc.Inventors: Chun-Wei Lee, Yu-Sung Lai, Sheng Chou, Han-Yuan Liu
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Patent number: 10031274Abstract: A light guide plate includes a diffusing surface that diffuses incident light having a concave cylindrical surface shape with curvature in a first direction, and an exit surface having a convex cylindrical surface shape with curvature in the first direction. The light guide plate is constituted such that a pattern provided behind the diffusing surface is visible from the exit surface side. The light guide plate has an incident surface on at least one end of the light guide plate in the first direction, and prisms that are formed in the diffusing surface and reflect visible light from a light source that enters the light guide plate from the incident surface toward the exit surface. Each prism has a reflecting surface oriented toward the incident surface side, and an angle between the reflecting surface and the diffusing surface increases, the further the prism is from the incident surface.Type: GrantFiled: May 17, 2016Date of Patent: July 24, 2018Assignee: OMRON CorporationInventors: Eiji Muraoka, Takeshi Kakinuma, Yoshihiko Takagi
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Patent number: 10025020Abstract: A 3D image display apparatus includes a display panel configured to display a multiview image, a light guide plate disposed in a rear of the display panel and spaced apart from the display panel, a main pattern repeatedly formed and spaced at a preset interval, and a light source configured to irradiate light to the light guide plate. A height of a sub pattern disposed in a light incident portion of the light guide plate near the light source among sub patterns constituting the main pattern is smaller than that of a sub pattern disposed in a central portion of the light guide plate.Type: GrantFiled: April 21, 2016Date of Patent: July 17, 2018Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jung-hoon Yoon, Ki-hyung Kang
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Patent number: 9972164Abstract: A decoration device has a display panel having a cylindrical surface shape with curvature in a first direction on which a first pattern is provided, a light source to emit visible light, and a light guide plate with a diffusing surface opposes the display panel, the diffusing surface having a concave cylindrical surface shape, an exit surface opposing the diffusing surface having a convex cylindrical surface shape. The light guide plate is provided such that the first pattern is visible from the exit surface side. The light guide plate has a plurality of prisms that are formed in the diffusing surface and reflect the visible light that enters the light guide plate from the light source through an incident surface toward the exit surface. An angle between a reflecting surface of each prism and the diffusing surface increases as the distance of the prism from the incident surface increases.Type: GrantFiled: May 13, 2016Date of Patent: May 15, 2018Assignee: OMRON CorporationInventors: Eiji Muraoka, Takeshi Kakinuma, Yoshihiko Takagi
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Patent number: 9891470Abstract: A reflector sheet, a backlight module and a display apparatus, which relate to the display technical field, are provided. They can reserve a space for deformation during thermal expansion of the reflector sheet and prevent the reflector sheet from being deformed, thereby avoiding uneven light. The reflector sheet comprises a reflector sheet body and apertures located in the reflector sheet body and configured for allowing a luminous body to pass therethrough, the apertures comprising first apertures and second apertures, wherein each of the first apertures is configured for relatively fixing a luminous body passing therethrough and the reflector sheet body, and each of the second apertures is configured for reserving a gap between a luminous body passing therethrough and the reflector sheet body. Also disclosed is use of the reflector sheet for manufacturing a display apparatus.Type: GrantFiled: April 21, 2015Date of Patent: February 13, 2018Assignee: BOE Technology Group Co., Ltd.Inventors: Yongchun Lu, Yong Qiao, Hongfei Cheng, Jianbo Xian, Yongda Ma, Jian Xu
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Patent number: 9885911Abstract: A display apparatus is provided. The display apparatus includes a liquid crystal display panel configured to display an image; a backlight unit located at the rear of the liquid crystal display panel, and including a plurality of light sources; a bottom chassis in which the backlight unit is positioned; and a reflector located in the bottom chassis, and configured to forwardly reflect light emitted from the plurality of light sources toward the liquid crystal display panel; and a reflection angle adjuster located in each corner of the reflector, and configured to reflect light emitted from the plurality of light sources in order to cause the reflected light to be incident toward corner areas of the liquid crystal display panel.Type: GrantFiled: March 13, 2015Date of Patent: February 6, 2018Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sang Eun Lee, Dae Hee Lee, Young Chol Lee, Byoung Jin Cho
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Patent number: 9823508Abstract: A display device including a bottom chassis including a bent portion, a light module including a light source on the bent portion, a curved surface display panel on the bottom chassis and on the light module, and a reflector between the curved surface display panel and the bottom chassis, wherein a height between end portions of the bent portion and bottom chassis is greater than a height between central portions of the bent portion and bottom chassis.Type: GrantFiled: March 9, 2015Date of Patent: November 21, 2017Assignee: Samsung Display Co., Ltd.Inventors: Eui Jeong Kang, Myung Seok Kwon, So Jeong Na, Young Min Park, Jung Hyun Yang
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Patent number: 9539824Abstract: An irradiation device includes a first LED row having a plurality of LEDs aligned in one row and electrically connected in series, and a second LED row having a plurality of LEDs aligned in one row and electrically connected in series. The first LED row and the second LED row are aligned adjacent to each other in a direction that crosses an array direction of the LEDs of the first LED row. A direction of current flowing in the first LED row is opposite to a direction of current flowing in the second LED row.Type: GrantFiled: February 6, 2015Date of Patent: January 10, 2017Assignee: Seiko Epson CorporationInventors: Norihiro Masuda, Kazuhito Hori
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Patent number: 9459485Abstract: There are provided an array substrate and a liquid crystal display apparatus. The array substrate comprises: array structures (12) and pixel electrodes (13) that are formed on a first substrate (11); wherein at least part of pixel regions corresponding to the pixel electrodes (13) are in optical diffusion structures (14); the pixel regions include pixel regions corresponding to pixels of different colors; the optical diffusion structures (14) are so arranged that reflectivity of light reflected from an optical diffusion structure of a pixel region, which corresponds to a pixel of a color having the longest light wavelength, is lower than reflectivity of light reflected from an optical diffusion structure (14) of a pixel region, which corresponds to a pixel of another color.Type: GrantFiled: November 15, 2012Date of Patent: October 4, 2016Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Yun Sik Im, Jung Mok Jun
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Patent number: 9360706Abstract: The present invention relates to a backlight module and a corresponding liquid crystal display panel. The backlight module includes a backboard having multiple concave portions formed on an inner surface of the backboard and multiple light sources mounted in the concave portions. The backlight module and the corresponding liquid crystal display device of the present invention can reduce the thickness of direct-type backlight module without affecting the optical quality of the lights emitted from the backlight module and increasing the manufacturing cost of the backlight module.Type: GrantFiled: April 13, 2012Date of Patent: June 7, 2016Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Jianfa Huang, Qian Cao, Chechang Hu
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Patent number: 9310641Abstract: A display device with a higher contrast ratio is provided. The display device is provided with stacked polarizing plates arranged displaced from a parallel nicol state. Moreover, in the display device, at least one of a pair of stacked polarizing plates is displaced from a parallel state. The pair of stacked polarizing plates is arranged in a cross nicol state. A retardation plate may be provided between the polarizing plate and the substrate. As a result, the contrast ratio can be increased.Type: GrantFiled: September 27, 2010Date of Patent: April 12, 2016Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Yuji Egi, Tetsuji Ishitani, Takeshi Nishi
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Patent number: 9298027Abstract: A liquid crystal display device includes a liquid crystal panel, an adhesive member on a lower surface of the liquid crystal panel, a light guide plate below the adhesive member, an optical sheet between the light guide plate and the liquid crystal panel and a dummy film between the light guide plate and the adhesive member, wherein the adhesive member is discontinuous in an area adjacent to the dummy film.Type: GrantFiled: July 5, 2013Date of Patent: March 29, 2016Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Eun Ju Shin, Joo Young Lee
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Patent number: 9285616Abstract: The present invention provides a backlight module and a liquid crystal display device using the backlight module. The backlight module includes: a backplane (2), a backlight source (4) arranged in the backplane (2), a light guide plate (6) arranged in the backplane (2), and a reflector plate (8) arranged between the backplane (2) and the light guide plate (6). The backplane (2) includes a bottom plate (22) and a plurality of side plates (24) perpendicularly connected to the bottom plate (22). The bottom plate (22) has a surface that faces the light guide plate (6) and is an arc curved surface (222). The reflector plate (8) is positioned on the arc curved surface (222) and shows an arc curved configuration.Type: GrantFiled: January 13, 2014Date of Patent: March 15, 2016Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.Inventor: Gang Yu
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Patent number: 9261727Abstract: A liquid crystal display includes a liquid crystal display panel including pixels and a backlight unit disposed at a rear side of the liquid crystal display panel to supply first and second color lights having different wavelengths to the liquid crystal display panel. In each pixel, first and second color filters having first and second colors different from each other are sequentially arranged in a first direction. Each pixel also includes a first open portion allowing the first and second color filters to be spaced apart from each other in the first direction and a second open portion allowing the second color filter to be spaced apart from a color filter of an adjacent pixel in the first direction. The backlight unit supplies the first and second color lights to the liquid crystal display panel during first and second sub-fields obtained by dividing a frame.Type: GrantFiled: June 4, 2013Date of Patent: February 16, 2016Assignee: Samsung Display Co., Ltd.Inventors: Seung-Suk Yang, Sangyeoul Lim, Yongchan Jeon, Young-Min Jung, Kwangjae Kim
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Patent number: 9251745Abstract: Various embodiments of the present invention provide for systems and apparatus directed toward using a contact lens and deflection optics to process display information and non-display information. In one embodiment of the invention, a display panel assembly is provided, comprising: a transparent substrate that permits light to pass through substantially undistorted; a reflector disposed on the transparent substrate; and a display panel aimed toward the reflector and substantially away from a human visual system, wherein the reflector reflects light emitted from the display panel toward the human visual system. The reflector may comprise a narrow band reflector or a polarization reflector.Type: GrantFiled: November 26, 2014Date of Patent: February 2, 2016Assignee: Innovega, Inc.Inventor: Randall Sprague
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Patent number: 9166093Abstract: A photo detection package including a package body configured to have an upward opened groove unit formed in the package body, a photo detection device mounted on a bottom surface of the groove unit and electrically connected externally, and a Light-Emitting Diode (LED) mounted on an inner surface of the groove unit that is formed of an inclined surface on a periphery of the bottom surface and electrically connected externally.Type: GrantFiled: April 21, 2015Date of Patent: October 20, 2015Assignee: Seoul Viosys Co., Ltd.Inventors: Ki Yon Park, Hwa Mok Kim, Young Hwan Son, Daewoong Suh
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Patent number: 9158396Abstract: An OLED display device has a built-in touch panel and includes an upper substrate and a lower substrate arranged opposite to each other, a thin film transistor array formed on the lower substrate, an organic light emitting array formed on the thin film transistor array, a touch sensor array formed on the upper substrate opposite to the lower substrate for sensing external touch by a capacitive type, an upper contact pad formed on the upper substrate to be connected to the touch sensor array, a lower contact pad formed on the lower substrate opposite to the plurality of upper contact pads, a conductive spacer connected between the upper contact pad and the lower contact pad, and a signal transmission film electrically connected to a main pad formed on the lower substrate and the lower contact pad for supplying signals for controlling the thin film transistor array and the touch sensor array.Type: GrantFiled: June 24, 2011Date of Patent: October 13, 2015Assignee: LG DISPLAY CO., LTD.Inventor: Ho-Won Choi