Diffuser Between Light Source And Liquid Crystal Patents (Class 349/64)
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Patent number: 12197071Abstract: The present invention relates to a lighting apparatus using LEDs as light sources and a display using the lighting apparatus, particularly, the present invention provides a lighting apparatus including: a plurality of light sources located on a printed circuit board; and a reflecting unit provided on the printed circuit board; and a spaced area provided inside the reflective unit.Type: GrantFiled: April 23, 2024Date of Patent: January 14, 2025Assignee: LG INNOTEK CO., LTD.Inventors: Kwang Ho Park, Chul Hong Kim, Moo Ryong Park, Byoung Eon Lee
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Patent number: 12164192Abstract: An example display apparatus includes a liquid crystal panel; a light source plate including a printed circuit board disposed behind the liquid crystal panel, and a light source module mounted on the printed circuit board to supply light to the liquid crystal panel. The light source module includes a light emitting diode (LED) chip; a light guide provided to guide the light emitted from the LED chip; a light converter provided to convert a wavelength of light guided through the light guide, and disposed on a first surface of the light guide and attached to the printed circuit board; and a distributed Bragg reflector (DBR) layer disposed on a second surface of the light guide body and provided to improve a light conversion efficiency of the light conversion member.Type: GrantFiled: March 13, 2023Date of Patent: December 10, 2024Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Naewon Jang, Youngchol Lee, Hyungsuk Kim, Seokwoo Yong
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Patent number: 12078839Abstract: An optical module and an electronic device are provided. The optical module includes a substrate, a first light guide plate, a first light-emitting element, a reflective layer, a first pattern layer, a first light-shielding structure, and a beam splitting layer. The first light guide plate has first and second surfaces opposite to each other. The second surface faces the substrate. The first light-emitting element has a light output surface facing a side portion of the first light guide plate. The reflective layer is arranged between the substrate and the first light guide plate. The first pattern layer is formed on the first light guide plate. The first light-shielding structure covers a part of the substrate, and the first surface of the first light guide plate. The beam splitting layer is disposed above the first light guide plate and the first light-shielding structure.Type: GrantFiled: January 16, 2024Date of Patent: September 3, 2024Assignee: LITE-ON TECHNOLOGY CORPORATIONInventor: Yu-Kuan Lin
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Patent number: 12068293Abstract: A display includes a plurality of blue, green and red light emitting micro-LEDs having respective blue, green and red emission spectra having respective emission peaks at respective wavelengths with respective full width at half maxima (FWHMs). A partial light transmitting layer is disposed on the plurality of blue, green and red light emitting micro-LEDs and includes substantially distinct blue, green and red transmission bands with respective blue, green and red FWHMs. For substantially normally incident light, the partial light transmitting layer has an optical transmittance of greater than about 50% at each of the blue, green and red peak wavelengths. The blue, green and red FWHMs of the partial light transmitting layer are less than the respective blue, green and red FWHMs of the blue, green and red light emitting micro-LEDs by at least 10%.Type: GrantFiled: August 24, 2020Date of Patent: August 20, 2024Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventor: Soo-Jin Jang
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Patent number: 12032198Abstract: A light emitting device (1) comprising an optical film (2) and a tensioner (3), the tensioner (3) being configured to accommodate a change in shape and/or position of the optical film (2), and the tensioner (3) comprising at least one resilient element (8) and a housing frame (4) configured to be connected to a backplate (5) of the light emitting device (1), the housing frame (4) including at least one mounting opening (7) configured to accommodate the at least one resilient element (8), the at least one resilient element (8) being provided between the housing frame and the optical film, the at least one resilient element (8) being placed in the at least one mounting opening (7), the at least one resilient element (8) being adapted for being in contact with the optical film (2), and the at least one resilient element (8) being arranged inclined with respect to a plane (P) in which the optical film (2) extends.Type: GrantFiled: September 10, 2021Date of Patent: July 9, 2024Assignee: SIGNIFY HOLDING, B.V.Inventor: Westly David Hetrick
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Patent number: 12001047Abstract: A light-guiding member includes a plurality of light-emitting portions separated by grooves; and a plurality of light sources each corresponding to a respective one of the plurality of light-emitting portions. The plurality of light-emitting portions include a plurality of outer portions, and at least one inner portion located in a region surrounded by the plurality of outer portions in a plan view. Each of the plurality of outer portions is adjacent to a smaller number of the light-emitting portions than a number of the light-emitting portions adjacent to a single inner portion of the at least one inner portion in a plan view. An area of a single outer portion of the plurality of outer portions is smaller than an area of the single inner portion in the plan view.Type: GrantFiled: November 21, 2022Date of Patent: June 4, 2024Assignee: NICHIA CORPORATIONInventors: Ryoma Okado, Satoshi Yoshinaga
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Patent number: 11994768Abstract: The present invention relates to a lighting apparatus using LEDs as light sources and a display using the lighting apparatus, particularly, the present invention provides a lighting apparatus including: a plurality of light sources located on a printed circuit board; and a reflecting unit provided on the printed circuit board; and a spaced area provided inside the reflective unit.Type: GrantFiled: August 7, 2023Date of Patent: May 28, 2024Assignee: LG INNOTEK CO., LTD.Inventors: Kwang Ho Park, Chul Hong Kim, Moo Ryong Park, Byoung Eon Lee
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Patent number: 11988866Abstract: A light guide plate including a light emitting surface, a bottom surface, a light incident surface, multiple protrusion structures, and multiple grooves is provided. The light incident surface is connected between the light emitting surface and the bottom surface. The protrusion structures are disposed along a first direction and extend toward a second direction. The protrusion structures have a light condensing angle along the first direction, and the light condensing angle ranges from 10 degrees to 40 degrees. The grooves are disposed in the protrusion structures of the light guide plate. The grooves extend toward the first direction. The protrusion structures have a light receiving surface that defines each groove and is closer to the light incident surface. An angle between the light receiving surface and the bottom surface ranges from 35 degrees to 65 degrees. A display apparatus adopting the light guide plate is also provided.Type: GrantFiled: August 25, 2022Date of Patent: May 21, 2024Assignees: Nano Precision (SuZhou) CO., LTD., Coretronic CorporationInventors: Ming-Yu Chou, Hsin Huang, Hao-Jan Kuo, Kuan-Wen Liu, Yun-Chao Chen
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Patent number: 11988934Abstract: An electronic device includes: a first light modulation assembly, including: a first substrate; a second substrate opposite to the first substrate; a first conductive layer disposed on the first substrate; a second conductive layer disposed on the second substrate; a first insulating layer disposed on the first substrate; and a first light modulation layer disposed between the first conductive layer and the second conductive layer.Type: GrantFiled: May 17, 2022Date of Patent: May 21, 2024Assignee: INNOLUX CORPORATIONInventors: Bi-Ly Lin, Rong-Jyun Lin, I-Wen Yang, Chih-Chung Hsu
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Patent number: 11962830Abstract: A far-field speech support with a lens function and an electrical device are provided. The far-field speech support includes: a base, a far-field speech board installation portion disposed on the base and configured to install a far-field speech board, a transparent light guide plate disposed on a bottom side of the far-field speech board installation portion, a buckle structure disposed on the base and configured to install an infrared receiving head assembly, and an infrared reflective portion disposed corresponding to the transparent light guide plate and disposed below the infrared receiving head assembly. The far-field speech support acts as a lens, provides an installation space for the far-field speech board, and facilitates installation of the far-field speech board.Type: GrantFiled: August 26, 2020Date of Patent: April 16, 2024Assignee: SHENZHEN TCL DIGITAL TECHNOLOGY LTD.Inventors: Dingfa Huang, Haiyun Sun, Xiaoxu Dong, Jun Xiang
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Patent number: 11934003Abstract: A planar light source includes: a support member; a light guide member disposed on the support member and having a light source positioning part; and a light source disposed on the support member while being in the light source positioning part of the light guide member. The support member includes: an insulation base having a first face positioned closer to the light source and a second face positioned opposite the first face, a first conductive layer disposed on the first face of the insulation base and electrically connected to the light source, an adhesive layer disposed on and in contact with the first face of the insulation base and the first conductive layer, and a light reflecting sheet disposed on the adhesive layer.Type: GrantFiled: July 25, 2022Date of Patent: March 19, 2024Assignee: NICHIA CORPORATIONInventors: Yukihiro Miura, Masaaki Katsumata, Ryohei Yamashita, Takashi Matsuo
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Patent number: 11933995Abstract: An optical diffuser includes optically anisotropic molecules arranged in a predefined configuration such that the optical diffuser diffuses first light having a first polarization and transmits second light having a second polarization that is different from the first polarization upon receiving the second light. In addition to polarization selectivity, the optical diffuser may also exhibit wavelength selectivity and/or incident angle selectivity. A method of diffusing light using the optical diffuser and a method of making the optical diffuser are also disclosed.Type: GrantFiled: April 12, 2022Date of Patent: March 19, 2024Assignee: META PLATFORMS TECHNOLOGIES, LLCInventors: Mengfei Wang, Gang Li, Lu Lu, Yunqi Li
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Patent number: 11924495Abstract: A far-field speech support with a lens function and an electrical device are provided. The far-field speech support includes: a base, a far-field speech board installation portion disposed on the base and configured to install a far-field speech board, a transparent light guide plate disposed on a bottom side of the far-field speech board installation portion, a buckle structure disposed on the base and configured to install an infrared receiving head assembly, and an infrared reflective portion disposed corresponding to the transparent light guide plate and disposed below the infrared receiving head assembly. The far-field speech support acts as a lens, provides an installation space for the far-field speech board, and facilitates installation of the far-field speech board.Type: GrantFiled: August 26, 2020Date of Patent: March 5, 2024Assignee: SHENZHEN TCL DIGITAL TECHNOLOGY LTD.Inventors: Dingfa Huang, Haiyun Sun, Xiaoxu Dong, Jun Xiang
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Patent number: 11914167Abstract: A display device in application of a vehicle is provided. The display device includes a self-luminous display device and a non-self-luminous display device. At least one of the self-luminous display device and the non-self-luminous display device includes a display panel and a light controller. The display panel includes a plurality of first signal lines respectively extending along a first direction. The light controller is disposed adjacent to the display panel and includes a plurality of light blocking patterns respectively extending along a second direction, wherein the second direction has an angle with respect to the first direction, and an absolute value of the angle is greater than 0 degree and less than or equal to 45 degrees.Type: GrantFiled: January 30, 2023Date of Patent: February 27, 2024Assignee: InnoLux CorporationInventor: Jui-Jen Yueh
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Patent number: 11899314Abstract: A color conversion display panel includes a substrate. A color conversion portion is disposed on the substrate. The color conversion portion includes a semiconductor nanocrystal. A transmission portion is disposed on the substrate. A blue light blocking filter is disposed between the substrate and the color conversion portion. The blue light blocking filter includes a first convex portion that protrudes toward the substrate. The transmission portion includes a first region including a scatterer and a second region including a second convex portion that protrudes toward the substrate.Type: GrantFiled: December 27, 2022Date of Patent: February 13, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Ja Hun Koo, Kyung-Hun Lee, Tae-Jong Jun, Woo-Young Cheon
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Patent number: 11901498Abstract: A light-emitting unit includes: a wiring board; light-emitting elements on the wiring board; a light reflecting member on the wiring board, the light reflecting member covering a lateral surface of each of the light-emitting elements; wavelength conversion layers each provided on or above an emission surface of a corresponding one of the plurality of light-emitting elements; light reflecting layers on the wavelength conversion layers, respectively; and a protecting layer configured to transmit light and provided on the light reflecting member. The light-transmitting protecting layer covers at least a lateral surface of the wavelength conversion layers and at least a lateral surfaces of the light reflecting layers. An upper surface of the protecting layer has a first recess in a region where the plurality of light reflecting layers are not present in a top view. The first recess includes at least one concave surface.Type: GrantFiled: January 27, 2023Date of Patent: February 13, 2024Assignee: Nichia CorporationInventors: Takuya Nakabayashi, Toshinobu Katsumata, Noriaki Hiraide
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Patent number: 11880235Abstract: An electronic device display and a display cover layer may be coupled to a housing. The display may have an array of pixels that are configured to emit light. One or more light redirecting elements may be incorporated into the electronic device that redirect and thereby change the direction of light rays emitted from peripheral pixels in the display. The light redirecting elements may be used to enlarge the effective size of the display, to create images on sidewall surfaces of the display cover layer, and/or to create diffuse glowing areas around the periphery of the device. Light redirecting elements may be formed as integral portions of a display cover layer, as laminated optical films on a display cover layer, or as coating layers on a display cover layer. Afocal optical systems may be formed by placing first and second light redirecting elements on opposing first and second sides of a display cover layer.Type: GrantFiled: March 9, 2020Date of Patent: January 23, 2024Assignee: Apple Inc.Inventors: Tyler S. Bushnell, John N. Border, Victoria C. Chan
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Patent number: 11858351Abstract: A glass article is provided with a cover glass sheet having first and second major surfaces. The second major surface has a first region with a first curve of a first radius of curvature, and a second region that is different than the first region. A frame's support surface has a third region of a first frame material and a fourth region of a different, second frame material. The second major surface faces the support, and the third region includes a second curve that complements the first curve while the fourth region complements the second region. A first adhesive is between the third region and the first region. A second adhesive is disposed between the fourth region and the second region. The first adhesive has a first Young's modulus, and the second adhesive comprising a second Young's modulus that is different than the first Young's modulus.Type: GrantFiled: November 19, 2019Date of Patent: January 2, 2024Assignee: Corning IncorporatedInventors: Carlos Francis Alonzo, Atul Kumar, Jinfa Mou, Christopher Mark Schweiger
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Patent number: 11852920Abstract: A light guide plate including a substrate; a first refractive index layer; a second refractive index layer stacked on the first refractive index layer, and a reflective layer disposed on a surface of the substrate opposite to the first refractive index layer, wherein the first refractive index layer is a structure of a plurality of prisms distributed on an emergence surface of the substrate, forming prism-structured netted dots. Through disposing the prism-structured netted dots, the reflective layer, and the second refractive index layer on the light guide plate substrate, and using refraction and reflection of each layer to realize adjustment of emergence angle, a function of an independent diffuser, prism, and reflector is realized. The light guide plate is used as CF or TFT substrate to manufacture a liquid crystal display, and a backlight module is integrated into a liquid crystal panel, decreasing a thickness of a liquid crystal module.Type: GrantFiled: August 28, 2020Date of Patent: December 26, 2023Assignee: Wuhan China Star Optoelectronics Technology Co., Ltd.Inventors: Bingkun Yin, Changchih Huang, Guanghui Liu
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Patent number: 11846840Abstract: A display device includes: a frame, including a frame body, a first protrusion disposed on the frame body, and a second protrusion disposed on the frame body, the second protrusion including at least one stepped portion; a display panel, located on a side of one stepped portion of the at least one stepped portion close to a light emitting surface of the display device and located on an inner side of the frame body; and a planar back housing, fixed on the inner side of the frame body and a side of the first protrusion away from the light emitting surface.Type: GrantFiled: October 30, 2020Date of Patent: December 19, 2023Assignees: K-TRONICS (SUZHOU) TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Hao Liu, Yunben Shen, Guangning Hao, Tao Ni, Yang Liu, Lihua Sheng
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Patent number: 11841584Abstract: A light-emitting module is provided. The light-emitting module includes a circuit substrate and a first light-emitting element disposed on the circuit substrate. The light-emitting module also includes an optical pattern disposed on the circuit substrate and adjacent to the first light-emitting element. The light-emitting module further includes a lens covering the first light-emitting element and the optical pattern.Type: GrantFiled: December 30, 2022Date of Patent: December 12, 2023Assignee: Innolux CorporationInventors: Yujun Chiu, Lavender Cheng, Maggy Hsu
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Patent number: 11789192Abstract: A backlight module includes at least one optical film and a backlight unit. The optical film has a light incident side and a light emitting side opposite to the light incident side. A plurality of light incident microstructures are formed on the light incident side, and the light incident microstructures are tapered structures. The backlight unit is disposed on the light incident side of the optical film and includes a light source. According to the structural design of the light incident microstructures of the optical film, the light field of the light source can be expanded to achieve the purpose of emitting light at a specific angle. The invention also provides a display device including the backlight module.Type: GrantFiled: June 29, 2022Date of Patent: October 17, 2023Assignee: Radiant Opto-Electronics CorporationInventors: Wei-Hsuan Chen, Chung-Yung Tai, Wen-Hao Cai, Chun-Yi Wu
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Patent number: 11784289Abstract: A light emitting diode includes a light emitting portion, a first electrode, a first reflecting portion, and a second electrode. The first reflecting portion includes conductive material. The first electrode is in electrical contact with the first reflecting portion. The second electrode is electrically connected to the light emitting portion. The first electrode and the second electrode receive different driving voltages and apply the driving voltage to the light emitting portion to drive the light emitting portion to emit light, the first reflecting portion being configured to reflect the light from the light emitting portion.Type: GrantFiled: September 30, 2021Date of Patent: October 10, 2023Assignees: Interface Technology (ChengDu) Co., Ltd., INTERFACE OPTOELECTRONICS (SHENZHEN) CO., LTD., GENERAL INTERFACE SOLUTION LIMITEDInventor: Kuang-Wei Liu
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Patent number: 11768402Abstract: Disclosed is a display device. The display device of the present disclosure may include: a display panel; a frame which is located in a rear of the display panel and to which the display panel is coupled; a substrate which is located between the display panel and the frame and coupled to the frame; and a plurality of light sources which are mounted on the substrate and spaced apart from each other, wherein the substrate may include: an elongated first plate; and a plurality of second plates which extend from the first plate in a direction intersecting with a length direction of the first plate, and are spaced apart from each other in the length direction of the first plate.Type: GrantFiled: June 27, 2022Date of Patent: September 26, 2023Assignee: LG ELECTRONICS INC.Inventors: Seungse Kim, Sangmin Baek, Junseok Tak, Byungwoo Lee
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Patent number: 11754876Abstract: A display apparatus includes: a display panel; a light source module provided behind the display panel, the light source module including a board and a light source provided on a rear surface of the board; a rear chassis covering a rear surface of the light source module; and a supporter extending between the board and the rear chassis, the supporter being electrically conductive.Type: GrantFiled: April 8, 2022Date of Patent: September 12, 2023Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Bupmyoung Kim, Sungho Kim
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Patent number: 11754879Abstract: A light source device includes a plurality of light sources, a substrate on which the light sources are arranged, and a reflective member arranged on the substrate via an adhesive member. The reflective member defines a plurality of through holes. The light sources are respectively disposed inside the through holes in a plan view. The adhesive member is light-reflective.Type: GrantFiled: May 10, 2022Date of Patent: September 12, 2023Assignee: NICHIA CORPORATIONInventors: Toshiyuki Hashimoto, Shimpei Sasaoka
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Patent number: 11732869Abstract: Provided is a light-emitting device with reduced in-plane luminance variation. The light-emitting device includes a main substrate, a plurality of light sources, a plurality of lenses, and one or more light reflection members. The main substrate includes a central part and a peripheral part that surrounds the central part. The plurality of light sources are each disposed on the central part of the main substrate. The plurality of lenses are disposed to correspond to the plurality of light sources respectively. The plurality of lenses apply optical effects to beams of light from the plurality of light sources respectively. One or more light reflection members are each disposed on the peripheral part. The light reflection members each have reflectance that is higher than the reflectance of the main substrate.Type: GrantFiled: December 19, 2022Date of Patent: August 22, 2023Assignee: SATURN LICENSING LLCInventors: Takeshi Nishimura, Takuya Shima
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Patent number: 11726251Abstract: A liquid crystal panel includes first substrate, a second substrate overlapping the first substrate, a liquid crystal arranged between the substrates, and first and second polarizing plates arranged outside from a corresponding one of the first and second substrates. A backlight unit includes a light source mounted on a wiring board, a light guide plate having a light-receiving side surface and a front light-output surface, an optical sheet arranged between the liquid crystal panel and the light guide plate, and a light shielding tape disposed between the liquid crystal panel and the optical sheet the light-shielding tape adheres to the second polarizing plate and the optical sheet.Type: GrantFiled: April 13, 2022Date of Patent: August 15, 2023Assignee: Japan Display Inc.Inventors: Munenori Motooka, Nobuyuki Suzuki
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Patent number: 11686972Abstract: A backlight device is provided and includes case having bottom plate; light guide including front surface as emission surface, rear surface opposed to front surface, and incidence surface provided between front and rear surfaces, rear surface being arranged on bottom plate; and light-emitting elements facing incident surface of light guide, wherein light-emitting elements includes first surface provided at bottom of light-emitting elements, and light-emitting surface facing incidence surface of light guide, first surfaces and rear surface are arranged side by side, and fixed to fixing tape attached over first surfaces and rear surface of light guide, and light-shield is facing fixing tape through light guide.Type: GrantFiled: December 8, 2021Date of Patent: June 27, 2023Assignee: Japan Display Inc.Inventors: Ken Sugiyama, Kosuke Matsubara, Takeshi Kaneki
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Patent number: 11690188Abstract: The present embodiment comprises: a stand having a side plate provided with a cable receiving groove portion for receiving a cable; a cable bracket fastened to the stand and having a separation portion being spaced apart from the side surface of the cable receiving groove portion; and a cover body having a side cover that covers the side surface of the cable receiving groove portion and the cable bracket, and a rear cover that is bent from the side cover, wherein a through hole, through which the cable passes, is formed between the rear cover and the side plate, and a part of the cable is accommodated between the side surface and the separation portion of the cable receiving groove portion.Type: GrantFiled: December 11, 2018Date of Patent: June 27, 2023Assignee: LG ELECTRONICS INC.Inventor: Taesung Cha
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Patent number: 11650455Abstract: A planar light source includes a mounting substrate, a plurality of light sources, a partition member, a frame body, a wavelength conversion member, and a light diffusion plate. The light sources are arranged two-dimensionally on the mounting substrate in a plan view. The partition member includes a wall portion surrounding each of the light sources except for outermost ones of the light sources in the plan view. The wall portions are located inward of the outermost ones of the light sources. The frame body has a bottom portion and a lateral wall surrounding the mounting substrate. The wavelength conversion member is disposed on the lateral wall of the frame body. The light diffusion plate is disposed above the plurality of light sources and the wavelength conversion member.Type: GrantFiled: July 20, 2022Date of Patent: May 16, 2023Assignee: NICHIA CORPORATIONInventors: Toshinobu Katsumata, Toshiyuki Hashimoto, Naoya Kashiwagi
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Patent number: 11592697Abstract: A display device is disclosed. The display device includes a display panel, a frame positioned behind the display panel, a plate positioned between the display panel and the frame, and a side frame, which extends along an edge of the frame behind the frame and which is coupled to the frame, wherein the plate includes a base facing the frame, and a projection, which projects rearwards from the base through the frame and the side frame and which is bent at an end thereof so as to be coupled to the side frame.Type: GrantFiled: January 22, 2021Date of Patent: February 28, 2023Assignee: LG ELECTRONICS INC.Inventors: Seunggyu Kang, Hyuncheol Cho
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Patent number: 11588081Abstract: A semiconductor device package includes a light-emitting device, a diffuser structure, a first optical sensor, and a second optical sensor. The light-emitting device has a light-emitting surface. The diffuser structure is above the light-emitting surface of the light-emitting device. The first optical sensor is disposed below the diffuser structure, and the first optical sensor is configured to detect a first reflected light reflected by the diffuser structure. The second optical sensor is disposed below the diffuser structure, and the second optical sensor is configured to detect a second reflected light reflected by the diffuser structure.Type: GrantFiled: March 4, 2020Date of Patent: February 21, 2023Assignee: ADVANCED SEMICONDUCTOR ENGINEERING, INC.Inventors: Hsin-Ying Ho, Hsun-Wei Chan, Shih-Chieh Tang, Lu-Ming Lai
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Patent number: 11578851Abstract: Provided is a light-emitting device with reduced in-plane luminance variation. The light-emitting device includes a main substrate, a plurality of light sources, a plurality of lenses, and one or more light reflection members. The main substrate includes a central part and a peripheral part that surrounds the central part. The plurality of light sources are each disposed on the central part of the main substrate. The plurality of lenses are disposed to correspond to the plurality of light sources respectively. The plurality of lenses apply optical effects to beams of light from the plurality of light sources respectively. One or more light reflection members are each disposed on the peripheral part. The light reflection members each have reflectance that is higher than the reflectance of the main substrate.Type: GrantFiled: December 23, 2021Date of Patent: February 14, 2023Assignee: SATURN LICENSING LLCInventors: Takeshi Nishimura, Takuya Shima
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Patent number: 11562988Abstract: An area light source, a method for manufacturing the same and a display device are provided. The area light source includes: a first conductive structure and a second conductive structure arranged opposite to each other; and a light-emitting layer arranged between the first conductive structure and the second conductive structure and including a plurality of light-emitting chips insulated from each other. A first electrode of each light-emitting chip is electrically connected to the first conductive structure, and a second electrode of each light-emitting chip is electrically connected to the second conductive structure.Type: GrantFiled: December 13, 2018Date of Patent: January 24, 2023Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY GROUP CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Jian Sang, Haiwei Sun, Junjie Ma
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Patent number: 11543578Abstract: Wide-area solid-state illumination devices and systems employing a front sheet, a back sheet approximately coextensive with the front sheet, a wide-area light emitting panel positioned between the front and back sheets and one or more strips of a two-sided adhesive tape joining an inner surface of the front sheet with an inner surface of the back sheet along one or more perimeter edges so as to form a thin and hollow sheet-form structure having a generally uniform thickness and at least partially enclosing the wide-area light emitting panel. The wide-area light emitting panel includes one or more solid-state light sources and has a total area which is less than total areas of each of the front and back sheets. The two-sided adhesive tape is configured at a thickness that is approximately equal to or greater than a total thickness of the wide-area light emitting structure. The wide-area light emitting structure may include a planar light guide and one or more LEDs optically coupled to the light guide.Type: GrantFiled: March 27, 2021Date of Patent: January 3, 2023Assignee: S.V.V. TECHNOLOGY INNOVATIONS, INC.Inventors: Sergiy Vasylyev, Mykola Masalitin
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Patent number: 11524472Abstract: A method of manufacturing an optical component having micro-structures is described. The method detects a crystallization temperature within a crystallization temperature interval for fully filling the molding material into a mold cavity to rapidly produce the optical element having a micro-structure with a large area.Type: GrantFiled: January 28, 2021Date of Patent: December 13, 2022Assignee: NATIONAL TAIWAN UNIVERSITY OF SCIENCE AND TECHNOLOGYInventors: Chao-Chang Chen, Cheng-Fan Yu, Chang-Shun Lai, Chien-Yu Hou
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Patent number: 11510330Abstract: A display module and a display device are provided. The display module is used in the display device having a camera lens, and the display module includes a display panel and a cover plate. A camera hole is defined in a position of the display panel corresponding to the camera lens. The cover plate is disposed on the display panel. A recess is defined in a side surface of the display panel to form a receiving hole which is disposed correspondingly to the camera hole. A ring-shaped blocking layer is disposed in the receiving hole to block a periphery of the camera hole.Type: GrantFiled: November 4, 2019Date of Patent: November 22, 2022Assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.Inventor: Shuang E
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Patent number: 11467437Abstract: An electronic device is provided in this disclosure. The electronic device includes a panel and an electromagnetic wave emitting structure. The panel has a first curved portion. The electromagnetic wave emitting structure has a second curved portion, and the second curved portion is corresponding to the first curved portion. The electromagnetic wave emitting structure includes a substrate and a plurality of electromagnetic wave emitting units. The plurality of electromagnetic wave emitting units are disposed on the substrate, and at least one of the plurality of electromagnetic wave emitting units is in the second curved portion.Type: GrantFiled: March 11, 2021Date of Patent: October 11, 2022Assignee: InnoLux CorporationInventors: Yu-Chih Tseng, Yu-Chia Huang, Chu-Hong Lai
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Patent number: 11463167Abstract: The disclosed visible-light barrier may include a light-scattering layer that preferentially scatters visible light over infrared light. The light-scattering layer may include (1) a substantially transparent or translucent material and (2) at least one of TiO2 or ZnO particles dispersed within the substantially transparent or translucent material at a concentration of from approximately 0.02 wt % to approximately 2 wt %. Various other articles, devices, systems, and methods are also disclosed.Type: GrantFiled: December 16, 2019Date of Patent: October 4, 2022Assignee: Facebook Technologies, LLCInventors: Rajesh Prasannavenkatesan, Luke Murphy, Elizabeth Tu, Peter Wesley Bristol
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Patent number: 11428987Abstract: A pixel array may be illuminated with backlight illumination from a backlight. The backlight may include a two-dimensional array of light-emitting diodes, with each light-emitting diode being placed in a respective cell. Different light-emitting diodes may have unique brightness magnitudes based on the content of the given display frame. Driver integrated circuits may control one or more associated light-emitting diodes to have a desired brightness level. The driver integrated circuits may be formed in an active area of the backlight. The driver integrated circuits may be arranged in groups that are daisy chained together. A digital signal (that includes information such as addressing information) may be propagated through the group of driver integrated circuits. To manage thermal performance of the backlight, the backlight may include a thermally conductive layer and/or a heat sink structure. To increase the efficiency of the backlight, the backlight may include one or more reflective layers.Type: GrantFiled: March 16, 2021Date of Patent: August 30, 2022Assignee: Apple Inc.Inventors: Mingxia Gu, Jun Qi, Yanming Li, Jingdong Chen
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Patent number: 11415814Abstract: A radiation-emitting device including a radiation source, an emission surface through which radiation from the radiation source passes during operation, wherein the emission surface includes a plurality of pixels, each pixel includes a plurality of subpixels, in plan view of the emission surface, each pixel forms a partial area of the emission surface and each subpixel forms a portion of such partial area, for each pixel, at least first subpixels are operable individually and independently of one another, and all subpixels of a pixel together make up at most 50% of the area of the pixel so that in simultaneous operation of all subpixels radiation is emitted via at most 50% of the area of the pixel.Type: GrantFiled: March 27, 2019Date of Patent: August 16, 2022Assignee: OSRAM OLED GmbHInventors: Peter Brick, Hubert Halbritter, Mikko Perälä
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Patent number: 11402692Abstract: A backlight module including a light guide plate, a light source, an optical film, a diffusion sheet, a first prism sheet and a second prism sheet is provided. The light guide plate has a light incident surface and a light emitting surface connected to each other. The light source is disposed on a side of the light incident surface. The optical film is overlapped with the light emitting surface and has a plurality of optical microstructures facing the light emitting surface. The diffusion sheet is disposed between the light guide plate and the optical film. The first prism sheet and the second prism sheet are overlapped with the optical film and are positioned on a side of the optical film being far away from the light guide plate. A display apparatus adopting the backlight module is also provided.Type: GrantFiled: June 2, 2021Date of Patent: August 2, 2022Assignee: Coretronic CorporationInventors: Ping-Yeng Chen, Chung-Yang Fang, Jen-Wei Yu, Yang-Ching Lin, Yu-Fan Chen
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Patent number: 11391869Abstract: According to one or more embodiments described herein, a coated article may comprise a transparent substrate and an optical coating. The transparent substrate may have a major surface, and the optical coating may be disposed on the major surface of the transparent substrate and form an air-side surface. The optical coating may comprise one or more layers of deposited material and one or more light-altering features which may reduce oscillations in the reflectance spectrum of the coated article. The coated article may exhibit a maximum hardness of about 8 GPa or greater, have an average photopic transmittance of about 50% or greater, and exhibit an angular color shift of less than about 10 from a reference illumination angle in a range of 0-10 degrees to an incident illumination angle in a range of 30-60 degrees relative to the air-side surface.Type: GrantFiled: July 17, 2019Date of Patent: July 19, 2022Assignee: Corning IncorporatedInventors: Robert Alan Bellman, Shandon Dee Hart, Karl William Koch, III
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Patent number: 11360344Abstract: The present disclosure provides a liquid crystal display panel and a liquid crystal display device, including a first substrate; a second substrate; a liquid crystal layer, disposed between the first substrate and the second substrate; a reflective layer, disposed on a side of the first substrate facing the liquid crystal layer; and a color filter layer, disposed on the first substrate and covering the reflective layer. When light passes through the second substrate reaching the color filter layer, the reflective layer is configured to reflect the light, which is filtered by the color filter layer, to the second substrate. The liquid crystal display panel and the liquid crystal display device emit light without a light source, having a reduced loss rate of the light, an increased light utilization rate, and an increased light reflectivity.Type: GrantFiled: March 17, 2021Date of Patent: June 14, 2022Assignee: JRD COMMUNICATION (SHENZHEN) LTD.Inventors: Ke Lin, Yang Yu, Jitao Ma, Zhuwei Qiu
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Patent number: 11340491Abstract: According to one embodiment, an electronic equipment includes a liquid crystal panel, and an illumination device illuminating the liquid crystal panel. The illumination device includes a first light guide including a first opening composed of a notch or a through hole and opposed to the liquid crystal panel, a first light source opposed to the first light guide, a second light guide provided in the first opening and opposed to the liquid crystal panel, and a second light source opposed to the second light guide.Type: GrantFiled: May 7, 2021Date of Patent: May 24, 2022Assignee: Japan Display Inc.Inventors: Makoto Hasegawa, Hiroyuki Shimokawa
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Patent number: 11331886Abstract: A process comprises cold-forming a flat glass substrate into a non-planar shape using a die. The cold-formed glass substrate is bonded to a non-planar rigid support structure at a plurality of non-planar points using the die. Bonding methods include injection molding the non-planar rigid support structure, and direct bonding. An article is also provided, comprising a cold-formed glass substrate having opposing major surfaces and a curved shape, the opposing major surfaces comprising a surface stress that differ from one another. The cold-formed glass substrate is attached to a rigid support structure having the curved shape. The cold-formed glass substrate includes an open region not in direct contact with the non-planar rigid support structure, and the open region has a curved shape maintained by the non-planar rigid support structure.Type: GrantFiled: August 31, 2020Date of Patent: May 17, 2022Assignee: Corning IncorporatedInventors: Michael Timothy Brennan, Yawei Sun
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Patent number: 11327214Abstract: A liquid crystal panel includes first substrate, a second substrate overlapping the first substrate, and a liquid crystal arranged between the substrates, the first including an extended portion which does not overlaps the second substrate. A backlight unit includes a light source mounted on a wiring board, a light guide plate having a light-receiving side surface and a front light-output surface, a light shielding adhesive tape disposed between the liquid crystal panel and the wiring board, and an optical sheet overlaping the front surface of the light guide plate. The light-shielding adhesive tape overlaps the wiring board and the optical sheet.Type: GrantFiled: February 24, 2021Date of Patent: May 10, 2022Assignee: Japan Display Inc.Inventors: Munenori Motooka, Nobuyuki Suzuki
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Patent number: 11307460Abstract: A backlight module and a display device are provided in embodiments of the present disclosure.Type: GrantFiled: December 13, 2019Date of Patent: April 19, 2022Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Xiandong Meng, Wei Wang, Jifeng Tan, Xianqin Meng, Xiaochuan Chen
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Patent number: 11294231Abstract: An illumination device includes: a substrate including a first face; at least one light source provided to the first face, and configured to emit light; and a wavelength conversion member facing the first face of the substrate, and configured to convert at least a portion of a wavelength, of the light emitted from the light source, into a wavelength having a color different from a similar color of the light emitted from the light source, wherein the substrate includes a first coloring portion constituting at least a portion of the substrate, including at least a portion of the first face, and configured to create the similar color.Type: GrantFiled: August 26, 2020Date of Patent: April 5, 2022Assignee: SHARP KABUSHIKI KAISHAInventor: Kentaroh Kamada