Including Liquid Crystal Display (i.e., Lcd) Patents (Class 362/561)
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Patent number: 12147069Abstract: A backlight module includes a back board, a lamp board, a wavelength conversion film, an optical film, a coating layer and a reflective component. The back board includes a side wall. The lamp board is arranged on the back board, and includes plural light emitting units. The wavelength conversion film is arranged on the light emitting units. The optical film is arranged on the wavelength conversion film. The coating layer is arranged on the optical film, and adjacent to the optical film. The reflective component is arranged between the side wall and the optical film, and surrounds the wavelength conversion film and the optical film. At an optical wavelength of 450 nanometers, a brightness of a first surface of the reflective component is between 70 and 100, a first chromaticity thereof is between ?10 and 10, and a second chromaticity thereof is between ?10 and 10.Type: GrantFiled: September 11, 2023Date of Patent: November 19, 2024Assignee: INNOLUX CORPORATIONInventors: Ling-Chieh Shen, Ting-Ying Wu, Yang-Ruei Li, Wen-Yu Lin
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Patent number: 12082482Abstract: When a base film used in a flexible display panel is bonded to a resin member for fixing the base film that is curved, the base film has creases by an environmental change such as temperature due to difference in linear expansion coefficient before and after a thermal shock. A buffer plate that is thin enough to be bent is provided between the base film used in a flexible display panel and the resin member. With the use of heat dissipation effect and heat equalization effect of the buffer plate, a structure around the panel capable of resisting the environmental change can be provided.Type: GrantFiled: July 8, 2021Date of Patent: September 3, 2024Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Daiki Nakamura, Kazuhiko Fujita
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Patent number: 12052910Abstract: When a base film used in a flexible display panel is bonded to a resin member for fixing the base film that is curved, the base film has creases by an environmental change such as temperature due to difference in linear expansion coefficient before and after a thermal shock. A buffer plate that is thin enough to be bent is provided between the base film used in a flexible display panel and the resin member. With the use of heat dissipation effect and heat equalization effect of the buffer plate, a structure around the panel capable of resisting the environmental change can be provided.Type: GrantFiled: July 8, 2021Date of Patent: July 30, 2024Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Daiki Nakamura, Kazuhiko Fujita
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Patent number: 11906847Abstract: A backlight unit includes a light source, a color conversion sheet disposed above the light source for converting a color of light emitted from the light source, and at least one optical film is disposed over the color conversion sheet. The one optical film has a base film, a first pattern layer including first patterns on one surface of the base film, and a second pattern layer disposed on the other surface of the base film and including second patterns different from the first patterns.Type: GrantFiled: September 22, 2022Date of Patent: February 20, 2024Assignee: LMS Co., Ltd.Inventors: Hyeonuk Park, Byeonghun Lee
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Patent number: 11867902Abstract: A display device includes light sources that emit light, a display panel that displays an image, and a light guide panel that guides the light emitted from the light sources to the display panel. The light guide panel includes an incident surface facing the light sources, an emission surface facing the display panel, a first reflective surface facing the incident surface, and a second reflective surface facing the emission surface. The first reflective surface has a concave shape that reflects light so that the reflected light becomes closer to parallel light when viewed in a facing direction of the display panel and the light guide panel in the light guide panel, is tilted at an angle larger than 0 degrees with respect to the incident surface, and intersects the second reflective surface at an angle smaller than 90 degrees.Type: GrantFiled: August 4, 2021Date of Patent: January 9, 2024Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventor: Yosuke Asai
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Patent number: 11360338Abstract: A display device is provided. The display device includes: a frame, a panel, and a conductive adhesive. The panel is bonded to the frame via the conductive adhesive. The panel further includes a back plate and a conductive component, wherein the conductive adhesive is electrically connected to the back plate via the conductive component.Type: GrantFiled: July 30, 2020Date of Patent: June 14, 2022Assignee: INNOLUX CORPORATIONInventors: Chien-Nian Chen, Yu-Chun Huang, I-Han Liu, Ming-Tien Wang, Yung-Yu Tsai
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Patent number: 11256133Abstract: A direct-lit backlight source, a manufacturing method thereof, and a display device. The direct-lit backlight source includes: a light-emitting unit array; in a first direction, the light-emitting unit array includes a third region, and a first region and a second region sequentially between a first edge and the third region; in a second direction, the light-emitting unit array includes a sixth region, and a fourth region and a fifth region sequentially between a second edge to the sixth region; light-emitting units adjacent along the first direction in the first, second, third region, have a first, second, third pitch, respectively; light-emitting units adjacent along the second direction in the fourth, fifth, sixth region, have a fourth, fifth, sixth pitch, respectively; the second pitch is greater than the first pitch and the third pitch, respectively; and the fifth pitch is greater than the fourth pitch and the sixth pitch, respectively.Type: GrantFiled: January 21, 2019Date of Patent: February 22, 2022Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Yu Zhang, Shixin Geng, Xiaojun Gu, Guangyun Tong, Hao Zhou, Tengfei Wang
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Patent number: 11231538Abstract: A backlight module is provided. The backlight module includes a light guide plate, a reflective component, a reflection-reducing component, and a light source. The light guide plate includes a surface having a main region and a peripheral region surrounding the main region. The reflective component is disposed adjacent to the surface and corresponding to the main region. The reflection-reducing component is disposed adjacent to the surface and corresponding to the peripheral region. The light source emits a light to a side of the light guide plate. In addition, a reflectivity of the reflection-reducing component is less than a reflectivity of the reflective component.Type: GrantFiled: October 16, 2020Date of Patent: January 25, 2022Inventor: Mark Kuo
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Patent number: 11132961Abstract: A backlight driving circuit of driving a backlight source, the backlight source comprising a plurality of LEDs arranged in an array, the backlight driving circuit comprising: a power source sub-circuit and a switch control sub-circuit, wherein the power source sub-circuit is electrically connected to the plurality of LEDs respectively through the switch control sub-circuit; and the switch control sub-circuit is configured to determine a to-be-turned-on LED and a to-be-turned-off LED according to color information of an image to be displayed, and control each of the LEDs to be turned on or off by controlling a connection state between each of the LEDs and the power source sub-circuit separately according to the determined to-be-turned-on LED and the determined to-be-turned-off LED. A backlight driving method, a backlight driving device and a computer-readable storage medium are further provided.Type: GrantFiled: May 16, 2019Date of Patent: September 28, 2021Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Feng Zi, Jian Sun, Ziqiang Guo, Xinjian Liu, Feng Pan, Yakun Wang, Jiyang Shao, Binhua Sun, Hao Zhang, Lili Chen
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Patent number: 11116056Abstract: A translucent insulating material providing a decorative wall covering; at least one lighting element combined on an underside of the translucent insulating material; and a controller combined to the at least one lighting element for synchronizing an output of the at least one lighting element to at least one characteristic of a media input.Type: GrantFiled: November 13, 2019Date of Patent: September 7, 2021Inventor: Caleb Marting
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Patent number: 11079093Abstract: A light emitting device includes: a light emitting element; a reflection wall that surrounds the light emitting element; and a diffusion reflection sheet that includes a plurality of particles and permits entrance of emitted light from the light emitting element and reflected light from the reflection wall.Type: GrantFiled: July 25, 2017Date of Patent: August 3, 2021Assignee: Saturn Licensing LLCInventors: Takeshi Yamamoto, Tomoyuki Yoshimatsu, Soya Araki, Naoki Tanaka
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Patent number: 11002903Abstract: An electronic device includes a circuit board and a metal reflective structure. The metal reflective structure is disposed on the circuit board. The metal reflective structure includes a protective layer and a metal layer. The metal layer is located between the protective layer and the circuit board. The protective layer includes transparent materials.Type: GrantFiled: May 27, 2020Date of Patent: May 11, 2021Assignee: INNOLUX CORPORATIONInventors: Chun-Fang Chen, Hui-Wen Su, Wei-Tsung Hsu, Shih-Ching Hsu
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Patent number: 10996510Abstract: The planar lighting device includes: a light source; and a brightness homogenizing member that has a laminate structure including high refractive index layers and low refractive index layers, and a light incidence portion that allows light emitted from each of the plurality of point light sources to be incident into the high refractive index layers is provided at a position of the laminate structure facing the point light source. The light incidence portion is formed of a hollow portion that is provided across the two or more high refractive index layers included in the laminate structure to penetrate at least one high refractive index layer and has a function of allowing the light to be incident into the high refractive index layers, and each of the high refractive index layers includes a light extraction mechanism that is provided at a position spaced apart from the light incidence portion.Type: GrantFiled: April 23, 2020Date of Patent: May 4, 2021Assignee: FUJIFILM CorporationInventors: Naoyoshi Yamada, Yukito Saitoh
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Patent number: 10935712Abstract: A device for backlighting a display in day- or night-vision mode includes a light guide with a cuboid shape and having an output face, and a lateral input prism having three rectangular lateral faces, at least one of the rectangular lateral faces being optically coupled to the lateral input face, and another of the rectangular lateral faces being semi-reflective; a first plurality of light emitting diodes arranged on a first carrier and configured to emit light in a first direction orthogonal to the first carrier towards one of the rectangular lateral faces; a second plurality of light emitting diodes arranged on a second carrier and configured to emit light in a second direction orthogonal to the second carrier towards another of the rectangular lateral faces; and an optical filter configured to modify the light emitted by one of the first and second plurality of light emitting diodes suitable for use in night-vision equipment.Type: GrantFiled: November 15, 2019Date of Patent: March 2, 2021Assignee: THALESInventors: Vincent Toraille, Hugues Lebrun
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Patent number: 10935715Abstract: A display device includes: a first light guide plate and a display panel disposed along a first direction; a second light guide plate between the first light guide plate and the display panel to be spaced apart from the first light guide plate; a light source at at least one of one side of the first light guide plate and one side of the second light guide plate; at least one first optical pattern on one of surfaces of the first light guide plate that face each other along the first direction; and at least one second optical pattern on one of surfaces of the second light guide plate that face each other along the first direction, wherein the first optical pattern and the second optical pattern do not overlap each other.Type: GrantFiled: March 12, 2019Date of Patent: March 2, 2021Assignee: Samsung Display Co., Ltd.Inventors: Keunwoo Park, Donggil Son, Hongbeom Lee, Taewoo Lim, Dongwoo Kim, Minsu Kim, Seongyeon Lee
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Patent number: 10921511Abstract: A floor lighting assembly includes a luminous composite sheet and a light transmissive carpet. The luminous composite sheet has a top side, a bottom side, and an edge extending from the top side to the bottom side. The light sources are arranged in a row and are configured to emit light into the light guide film through the edge. The light transmissive carpet is disposed above the top side of the light guide film. The light transmissive carpet includes a backing structure and a pile mounted to and extending from the backing structure. The light guide film is configured to spread and redirect the light that is received therein through the edge for emitting the light through the top side of the light guide film such that some of the light is transmitted through the light transmissive carpet.Type: GrantFiled: September 6, 2019Date of Patent: February 16, 2021Assignee: THE BOEING COMPANYInventors: Jeffrey Lynn Duce, Karen L. Hills
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Patent number: 10902797Abstract: A method for controlling a light source of a display is provided. Maximum frame rates for different portions of video content to be displayed on the display are determined. The light source of the display is controlled to blink according to a blinking frequency when a first portion of the video content having a first maximum frame rate is displayed. The light source of the display is controlled to not blink when a second portion of the video content having a second maximum frame rate is displayed. The first maximum frame rate exceeds a predetermined frame rate of the display. Further, the second maximum frame rate does not exceed the predetermined frame rate of the display.Type: GrantFiled: May 10, 2019Date of Patent: January 26, 2021Assignee: Saturn Licensing LLCInventor: Peter Shintani
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Patent number: 10806211Abstract: An article of footwear is configured to be worn so as to at least partially cover a wearer's foot. The footwear includes at least one optical fiber on an internal surface of the footwear. The at least one optical fiber is configured to project radiation having a therapeutic wavelength through the at least one optical fiber and toward at least one of the wearer's foot, ankle or leg when the footwear is being worn so as to at least partially cover the wearer's foot.Type: GrantFiled: July 24, 2019Date of Patent: October 20, 2020Assignee: Biothread LLCInventors: Jay Tapper, Jens Johnson, Lawrence A. Blaustein, Jaleh Factor, Charles Peter Althoff, Lulin Ding, Boris Kontorovich, Kevin T. Foley
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Patent number: 10788706Abstract: The present disclosure relates to a backlight module including a light guide plate, and further an integrally-formed frame covering the light guide plate. The integrally-formed frame including an accommodating cavity for accommodating the light guide plate. The accommodating cavity is formed to be surrounded by a top plate located at a light-emitting surface of the light guide plate, a side plate located at a side of the light guide plate, and a bottom plate located at a bottom surface of the light guide plate opposite to the light-emitting surface. The present disclosure also relates to a display device.Type: GrantFiled: May 16, 2019Date of Patent: September 29, 2020Assignees: BEIJING BOE CHATANI ELECTRONICS CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Ting Li, Qilin Li
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Patent number: 10770053Abstract: Lighting devices are disclosed. One lighting device includes a housing, a light source, and a panel. The light source is mounted within the housing and configured to emit light sufficient for general illumination of an area. The panel is supported by the housing at a location to receive light from the light source at one or more light input surfaces of the panel and output the received light from the light source via a light output surface of the panel facing the area. The light propagates within material of the panel from the one or more light input surfaces to the light output surface. The light output surface of the panel comprises a noise reduction structure.Type: GrantFiled: March 23, 2018Date of Patent: September 8, 2020Assignee: ABL IP HOLDING LLCInventors: Robert M. Krass, Gregory Malone, Peter Yi Yan Ngai, David P. Ramer, Rashmi Kumar Rogers
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Patent number: 10705279Abstract: A display device includes a display component, a light source, and a light guide component. The display component includes a display area and a non-display area. The light guide component includes a first light guide plate disposed behind the display area, a second light guide plate disposed adjacent to the light source and lateral to the first light guide plate, and a joint member disposed behind the non-display area. The first light guide plate includes a plate surface with an area larger than the display area. The plate surface includes a light exiting surface. The second light guide plate includes a light entering surface. The joint member joins the first light guide plate and the second light guide plate together. A space is present between the first light guide plate and the second light guide plate and surrounded by the joint member.Type: GrantFiled: August 29, 2019Date of Patent: July 7, 2020Assignee: SHARP KABUSHIKI KAISHAInventor: Yoshitake Nakamura
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Patent number: 10641950Abstract: The present invention relates to an optical waveguide, comprising an optical wave-guiding core, a region in the optical waveguide, wherein the micro-modifications are arranged in the region of the optical waveguide, wherein the arrangement of the micro-modifications is ordered, and to a method for producing an optical waveguide according to the invention.Type: GrantFiled: June 15, 2016Date of Patent: May 5, 2020Assignee: CLINICAL LASETHERMIA SYSTEMS GMBHInventors: Manuela Schwagmeier, Verena Knappe, David Ashkenasi, Hans-Joachim Cappius
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Patent number: 10641949Abstract: The solution relates to lighting engineering, namely to thin illumination devices having a lateral arrangement of LEDs, which are intended for use as immovably fixed ceiling and wall lights. The technical result of the claimed solution is increased structural strength and improved compactness on account of a monoblock design. The device comprises a housing formed by successively connected plastic profiles, a flat light guide, a U-shaped metallic LED board which is mounted in a cavity of a profile having an open cavity, and a power source arranged in a profile having a closed cavity.Type: GrantFiled: April 18, 2018Date of Patent: May 5, 2020Inventor: Yuriy Borisovich Sokolov
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Patent number: 10605980Abstract: A stepped light guide illumination system employing a planar sheet of an optically transmissive material having a stepped light guiding structure and one or more parallel arrays of channels. Light is input into the stepped light guiding structure using a number of light sources, such as LEDs, located within the channels and coupled to the stepped light guiding structure at multiple locations. Light is extracted from the stepped light guiding structure by two-dimensional patterns of light extraction features provided within the parallel channels and in surface areas of the stepped light guiding structure located between the parallel channels.Type: GrantFiled: June 4, 2018Date of Patent: March 31, 2020Assignee: SVV TECHNOLOGY INNOVATIONS, INC.Inventor: Sergiy Vasylyev
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Patent number: 10502891Abstract: A display device includes a display panel and an illumination section that illuminates the display panel. The illumination section includes: a light guide plate having a first surface and a second surface facing each other; a light source facing an end surface of the light guide plate; an adhesive layer formed adjacent to the first surface of the light guide plate and having substantially the same refractive index as a refractive index of the light guide plate; and a light reflection layer bonded to the first surface of the light guide plate with at least the adhesive layer in between.Type: GrantFiled: July 8, 2015Date of Patent: December 10, 2019Assignee: Sony CorporationInventors: Soya Araki, Takao Sumida, Takeshi Yamamoto, Tomoyuki Yoshimatsu
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Patent number: 10488582Abstract: A planar illumination apparatus according to an embodiment includes a light guide plate that emits light from an emission surface, the light being incident on a lateral surface of the light guide plate; a light source that is arranged on the lateral surface side and has a light emitting surface that emits light to be incident on the lateral surface; a substrate that has two principal surfaces, a surface opposite to the light emitting surface of the light source being mounted on one of the principal surfaces; a frame that has a lateral surface and a floor surface, and accommodates the light guide plate, the light source, and the substrate; and a first coupling member that is arranged between the light guide plate and the floor surface and between the light source and the floor surface, and couples the light guide plate and the light source.Type: GrantFiled: June 19, 2017Date of Patent: November 26, 2019Assignee: MINEBEA MITSUMI INC.Inventors: Hideyuki Tokunaga, Makoto Furuta, Takashi Edamitsu
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Patent number: 10488704Abstract: A backlight device includes LEDs, a light guide plate, a LED board, and a bonding member. The light guide plate has a light entrance edge surface that is a part of peripheral edge surfaces thereof and through which light from the LED enters, a light exiting plate surface that is one of plate surfaces thereof and through which light exits, and another one of the plate surfaces as an opposite plate surface. The LED board has a mounting surface on which the LEDs are mounted, and has a part overlapping a part of the light guide plate on an opposite plate surface side. The bonding member is bonded to the mounting surface of the part of the LED board and to the opposite plate surface of the part of the light guide plate and the bonding member includes a light absorbing bonding layer containing light absorbing material.Type: GrantFiled: June 10, 2016Date of Patent: November 26, 2019Assignee: SHARP KABUSHIKI KAISHAInventors: Ryuzo Yuki, Mitsuhiro Murata, Hisashi Watanabe, Hirotoshi Yasunaga
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Patent number: 10473850Abstract: Embodiments described herein are directed to a lighting fixture including a lightguide that distributes light from a major surface, a light assembly including light sources arranged linearly, and a frame including a means for providing a force that urges the light assembly against an edge of the lightguide. A standoff or spacer can provide an air gap between a light source of the light assembly and the waveguide edge. In various embodiments, the lighting fixture may incorporate a spring, a spring finger, a spring clip, a screw, or other means for securing the light assembly against the edge of the lightguide. In this manner, substantially all light provided by the light assembly is emitted into the edge of the lightguide. The fixture is formed to accommodate tolerances among elements of the lighting fixture, while maintaining the light assembly securely against the edge of the lightguide.Type: GrantFiled: August 6, 2018Date of Patent: November 12, 2019Assignee: Eaton Intelligent Power LimitedInventors: James H. Blessitt, Russ Clements, Ellis W. Patrick
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Patent number: 10459275Abstract: The embodiments of the present invention provide a polarizer, a manufacturing method thereof, a display panel and a display device, to avoid mura caused by the film peeling process of the polarizer, thereby reducing the probability of bad quality products, simplifying the assembly process, and preventing the omission of conductive attachment. The polarizer includes a main body layer, a protective film layer, a conductive layer and a release film. A first surface of the main body layer is attached with the protective film layer. A second surface of the main body layer is attached with the release film. A periphery of the main body layer is attached with the conductive layer.Type: GrantFiled: February 24, 2016Date of Patent: October 29, 2019Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.Inventors: Junwei Wang, Haifeng Yu, Haiqin Huang, Dongxi Li
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Patent number: 10422518Abstract: The light fixture includes a frame, a substantially flat light emitting diode (LED) panel disposed within the frame, power circuitry disposed within at least one of a number of channels within the frame, and a central wire-way. The frame includes a bottom assembly and a top assembly coupled to the bottom assembly. The bottom assembly and the top assembly cooperate to form the channels within the frame. The bottom assembly has a back surface. The power circuitry is configured to electrically couple the substantially flat LED panel to an external AC power supply. The central wire-way is disposed adjacent the back surface of the bottom assembly and configured to route wiring to or from the power circuitry disposed within at least one of the channels within the frame.Type: GrantFiled: May 23, 2017Date of Patent: September 24, 2019Assignee: Unity Opto Technology Co., Ltd.Inventors: J. Richard Myers, John Araki
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Patent number: 10399482Abstract: A light module includes a light source configured for emitting an illumination beam, and an optical fiber guiding the illumination beam between a first end facing the light source and a second end opposite the light source. The light module further includes a reflector positioned at the second end of the optical fiber and reflecting the illumination beam back from the second end toward the first end of the optical fiber.Type: GrantFiled: February 7, 2018Date of Patent: September 3, 2019Assignee: Dura Operating, LLCInventor: Thomas Farges
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Patent number: 10352527Abstract: Provided is a luminous, apparatus such as a display, having a function of preventing attraction of insects. A display apparatus 1 has a light emission surface 1 whose peripheral edge region is at least partially formed as a low-attraction region which is less capable of attracting bugs, wherein the low-attraction region is composed of an optical property gradient region whose at least one optical property gradually changes in a direction from an inward side to an outward side of the light emission surface.Type: GrantFiled: September 18, 2015Date of Patent: July 16, 2019Assignee: NATIONAL UNIVERSITY CORPORATION HAMAMATSU UNIVERSITY SCHOOL OF MEDICINEInventors: Yoshihiro Uozu, Takahiko Hariyama, Mantaro Hironaka
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Patent number: 10354598Abstract: Methods and apparatuses are provided for controlling a display and transmitting video content. The method includes determining, by processing circuitry, a blinking frequency to be used during presentation of video content for a light source of a display. The processing circuitry sets the blinking frequency for the light source of the display based on the determined blinking frequency. Further, the processing circuitry controls the light source of the display to blink according to the set blinking frequency while the video content is presented on the display. The light source is configured to illuminate a separate display panel or to emit light that form images of the video content.Type: GrantFiled: December 18, 2015Date of Patent: July 16, 2019Assignee: SONY CORPORATIONInventor: Peter Shintani
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Patent number: 10345509Abstract: An apparatus is disclosed including a light guide and a plurality of light emitting diodes (LEDs). The light guide includes a rear portion including a first edge, a second edge, and a rear edge. The first edge meets the rear edge at a first obtuse angle, and the second edge meets the rear edge at a second obtuse angle. The plurality of light emitting diodes (LEDs) disposed on the first edge, the second edge, and the rear edge, and it is arranged to produce an asymmetric light distribution pattern including a rear light emission and a forward light emission having a greater peak intensity than the rear light emission.Type: GrantFiled: September 11, 2017Date of Patent: July 9, 2019Assignee: Lumileds LLCInventors: Jeroen Den Breejen, Frederic Stephane Diana
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Patent number: 10317606Abstract: An etendue squeezing optic includes light guiding elements that are extruded sideways to guide light to a wide outlet surface for efficient injection into an edge face of a flat light guide such as a backlight panel for a visual display, in combination with a light source optically coupled to the light inlet through an air-gap, so that light entering the optic through the air-gap is confined to a cone of directions determined by a critical angle of refraction into the optic from air at the air-gap.Type: GrantFiled: December 10, 2015Date of Patent: June 11, 2019Assignee: Light Prescriptions Innovators, LLCInventors: Julio C Chaves, Pablo Benitez, Juan Carlos Minano, Waqidi Falicoff
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Patent number: 10281888Abstract: An electronic device with automatic screen-cleaning function includes a film attached to a flexible display screen. The film includes heat-sensitive projections, light detection units, and heating circuit. Each light detection unit can detect a brightness value of light under the flexible display screen. The detected brightness value is evaluated against a predefined brightness value. When the detected brightness value does not equal the predefined brightness value, at least one electrical resistance heater element is controlled to generate heat, causing one of projections to bulge from the film. The bulging projection pushes out the flexible display screen, thus making dust or other external contaminant fall from the flexible display screen.Type: GrantFiled: July 22, 2016Date of Patent: May 7, 2019Assignees: Fu Tai Hua Industry (Shenzhen) Co., Ltd., HON HAI PRECISION INDUSTRY CO., LTD.Inventor: Cheng-Gang Yang
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Patent number: 10274782Abstract: Provided is a backlight unit, including: a light source allowing light having a light emission center wavelength of ? nm to exit; and a wavelength conversion member positioned on an optical path of the light exiting from the light source, in which the wavelength conversion member includes a wavelength conversion layer containing a fluorescent material which is excited by exciting light and emits fluorescent light, and a light scattering layer containing particles having a particle size of greater than or equal to 0.1 ?m in a matrix, an average refractive index n1 of the wavelength conversion layer satisfies a relationship of n1<n2 with respect to an average refractive index n2 of the matrix of the light scattering layer, and a light absorptivity of the light scattering layer at a wavelength of ? nm is less than or equal to 8.0%.Type: GrantFiled: March 28, 2017Date of Patent: April 30, 2019Assignee: FUJIFILM CorporationInventors: Takashi Yonemoto, Eijiro Iwase, Koichi Sato
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Patent number: 10261230Abstract: LED lighting devices are provided that include two optical waveguides and at least one LED in an intermediate region between end faces of the optical waveguides so that radiation from the LED is coupled into the optical waveguides through the end faces. A de-coupler is on outer circumferential surface regions of each of the two separate optical waveguides. The de-coupler reflects the radiation guided in the optical waveguides so that the radiation passes through the optical waveguides and is coupled out of the optical waveguides laterally. The intermediate region has a length that is selected so that a brightness difference, measured perpendicular to an axis of the optical waveguides in the center of the intermediate region, at a distance of 10 mm perpendicular to the axis of the optical waveguides is at most 25% based on a maximum value of brightness along the axis of the optical waveguides.Type: GrantFiled: September 15, 2016Date of Patent: April 16, 2019Assignee: Schott AGInventors: Ekkehard Gaydoul, Armin Plichta, Juergen Meinl, Bjoern Bleisinger, Martin Cramer, Thomas Reichert, Marc Timon Sprzagala, Sandra Mattheis
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Patent number: 10228503Abstract: A light guide plate, a fabricating method thereof, a backlight source, and a display device. The light guide plate comprises a light guide plate main body, with the surface of the light guide plate main body being provided with a blue coating. The blue coating mixes with yellow light strengthened gradually from a light entrance end to a light remote end of the light guide plate main body to form white light. The fabricating method of the light guide plate comprises: providing a light guide plate main body; forming a blue coating on a surface of the light guide plate main body; and curing the light guide plate main body provided with the blue coating. The present disclosure further provides a backlight source and a display device. The backlight source comprises the above light guide plate, and the display device comprises the above backlight source.Type: GrantFiled: March 28, 2016Date of Patent: March 12, 2019Assignees: BOE TECHNOLOGY GROUP CO., LTD., BOE OPTICAL SCIENCE AND TECHNOLOGY CO., LTD.Inventors: Wentao Ying, Xiaoli Xie
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Patent number: 10185072Abstract: A light guide plate and a light source module are described. The light guide plate includes a main body, first stripe microstructures and second stripe microstructures. The main body includes a light incidence surface and an optic surface. The light incidence surface is connected to the optic surface. The optic surface includes a first microstructure region and a second microstructure region arranged sequentially, and the first microstructure region is near the light incidence surface. The first stripe microstructures are disposed in the first microstructure region and extending along a direction from one side near the light-incident surface to the other side away from the light-incident surface. The second stripe microstructures are disposed in the second microstructure region along the direction. A gradient of each second stripe microstructure is gradually varied along the direction.Type: GrantFiled: August 2, 2017Date of Patent: January 22, 2019Assignee: Radiant Opto-Electronics CorporationInventors: Chia-Yin Chang, Chin-Ting Weng
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Patent number: 10175419Abstract: A backlight module includes first and second backlight units. The first backlight unit includes a first cover, a first light guide plate, a first light source and at least one first optical film. The first cover has a first surface and a second surface opposite to each other. The first light guide plate is disposed on the first surface. The first light source is disposed on the first surface and located on a side of the first light guide plate. The first optical film is disposed between the first surface and the first light guide plate. The second backlight unit is detachably disposed with the first backlight unit and has a structure similar to the first backlight unit. A display device having the backlight module is also provided.Type: GrantFiled: May 11, 2017Date of Patent: January 8, 2019Assignee: YOUNG LIGHTING TECHNOLOGY INC.Inventors: Chih-Yang Wang, Chun-Chi Hsu, Bing-Han Tsai
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Patent number: 10132989Abstract: The present disclosure provides a backlight module and a display device. The backlight module includes a back plate, a light guide plate (LGP) arranged on the back plate and including a central region and a peripheral region, and an optical sheet arranged on a light-exiting surface of the LGP. The LGP includes a supporting part arranged on the peripheral region and configured to support a display panel.Type: GrantFiled: July 24, 2015Date of Patent: November 20, 2018Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE CHATANI ELECTRONICS CO., LTD.Inventor: Peng Zhou
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Patent number: 10126579Abstract: Exemplary embodiments disclosed herein provide a LCD assembly including an LED backlight, a liquid crystal display (LCD) placed in front of the LED backlight, a glass plate positioned between LED backlight and the LCD; and an optical film positioned between the glass plate and the LCD. In some embodiments, the glass plate is bonded to the rear side of the LCD, generally around the perimeter of the LCD. Preferred embodiments place a diffusing film within a cavity that is defined between the glass plate and the LCD. Some embodiments also bond the backlight cavity walls to the glass plate, on a side opposing the LCD.Type: GrantFiled: April 27, 2016Date of Patent: November 13, 2018Assignee: Manfuacturing Resources International, Inc.Inventors: William Dunn, Michael LeCave
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Patent number: 10018766Abstract: The present invention discloses a light guide plate, a backlight module and a display device. In the light guide plate, a plurality of triangular pyramid dots are provided; two of four surfaces of each of the triangular pyramid dots are light receiving surfaces facing a backlight source, and are reflective mirror surfaces, so that incident light reaching the two light receiving surfaces from the backlight source is converted into emergent light exiting in two different directions, and then the emergent light is emitted out from the upper surface of the light guide plate. In the solution, as the triangular pyramid dots capable of converting incident light from a backlight source into emergent light exiting in two specific directions are provided in a light guide plate, the effect of dual-view backlight can be realized while providing a light guide plate or dual-view backlight module with simpler structure and lower cost.Type: GrantFiled: November 11, 2014Date of Patent: July 10, 2018Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Shang Wang, Qiuxiang Li
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Patent number: 9949334Abstract: A lighting assembly including a circuit is disclosed. The circuit is configured to be disposed in a panel defining a cavity forming an opening. The circuit includes a light source in communication with a controller and an exposed conductive portion conductively connected to an isolation terminal. The exposed conductive portion is oriented proximate the opening and provides a path for an electrical discharge to protect the light source from the electrical discharge.Type: GrantFiled: May 1, 2014Date of Patent: April 17, 2018Assignee: Ford Global Technologies, LLCInventors: Stuart C. Salter, James J. Surman, Cornel Lewis Gardner, Steven J. Antilla, Daniel Weckstein
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Patent number: 9904004Abstract: A liquid crystal display device includes a plurality of light source packages each having a light-emitting portion for emitting light, a light guide plate which light emitted from the light source packages enters through the incidence surface, having a height and a width, and from which the light exits through the exit surface, and a liquid crystal display panel for controlling, for each pixel, the orientation of a liquid crystal material to control the transmission of the light exiting through the exit surface. Each light source package has two opposing long sides and two opposing short sides when viewed from the direction of the light emitted by the light-emitting portion. The plurality of light source packages are arranged long side to long side in the direction along the width.Type: GrantFiled: November 17, 2016Date of Patent: February 27, 2018Assignee: Japan Display Inc.Inventor: Norihiro Nakamura
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Patent number: 9880502Abstract: A light emitting device includes a light source, a light guide plate, a diffusion sheet, and a lens. The light source is configured to perform partial light emission. The light guide plate is configured to guide light from the light source. The diffusion sheet is stacked over the light guide plate with a gap defined between the light guide plate and the diffusion sheet, and is configured to diffuse the light guided by the light guide plate. The lens is stacked on the diffusion sheet and has an upper surface serving as a light emitting surface.Type: GrantFiled: April 25, 2014Date of Patent: January 30, 2018Assignee: KONICA MINOLTA, INC.Inventor: Takumi Michibata
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Patent number: 9879836Abstract: The present invention is directed toward a lighting device in a motor vehicle that includes a first light conductor and at least one second light conductor. The first light conductor propagates light by total internal reflection which impacts on a light coupling-out area of light conductor and is at least partially reflected toward and emits from an opposite light output area. The at least one second light conductor propagates light by total internal reflection which is coupled into the first light conductor by a midway coupling-in. The light that emits out of the second light conductor via a light output area enters into the first light conductor via the light coupling-out area. An air gap is formed between the light coupling-out area of the first light conductor and the light output area of the second light conductor.Type: GrantFiled: September 18, 2014Date of Patent: January 30, 2018Assignee: Automotive Lighting Reutlingen GmbHInventor: Thomas Kleiner
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Patent number: 9824612Abstract: The disclosure provides a display panel, a method for driving the display panel and a 3D display device including the display panel, and relates to the technical field of display. The display panel comprises a display unit and at least one timing control units, wherein the display unit comprises a plurality of display regions and the plurality of display regions are simultaneously scanned. With the present invention, wire impedance in the display panel is reduced, charging time for a single row of pixels can be reduced and charging rate of the pixels can be improved.Type: GrantFiled: June 26, 2014Date of Patent: November 21, 2017Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.Inventors: Weihao Hu, Yoon Dae Keun, Yanping Liao, Yufan Du, Zongze He, Yangbing Yu
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Patent number: 9772437Abstract: A display includes a display panel, an image compensating portion, and a backlight module. The display panel includes a main display region and a periphery display region outside the main display region. The image compensating portion corresponding to the periphery display region includes a plurality of light guiding channels. The backlight module provides lights to the display panel. The backlight module comprises a plurality of first light collecting module. The first light collecting module focuses lights emitted from a first direction on a first light collecting axis parallel with an axis of the light guiding channel. The first direction is perpendicular to a first plane parallel with the display panel.Type: GrantFiled: September 29, 2014Date of Patent: September 26, 2017Assignee: HON HAI PRECISION INDUSTRY CO., LTD.Inventor: I-Wei Wu