Having Solid-state Light Source Patents (Class 362/97.3)
  • Patent number: 10497840
    Abstract: A wavelength-converting film and a light emitting device and a display device using the same are disclosed. The wavelength converting film comprises a fluoride phosphor powder with a Mn4+ as an activator, wherein the fluoride phosphor powder with the Mn4+ as the activator comprises a sheet-like crystal and has a chemical formula of A2[MF6]:Mn4+, wherein A is Li, Na, K, Rb, Cs, NH4, or a combination thereof, and M is Ge, Si, Sn, Ti, Zr, or a combination thereof.
    Type: Grant
    Filed: October 25, 2017
    Date of Patent: December 3, 2019
    Assignee: LEXTAR ELECTRONICS CORPORATION
    Inventors: Ching-Yi Chen, Wen-Wan Tai, Yu-Chun Lee, Tzong-Liang Tsai
  • Patent number: 10490711
    Abstract: A light emitting device includes a light emitting element adapted to emit a blue light, a sealing resin covering the light emitting element, and a sulfide phosphor-containing layer disposed at an outer side of a sealing resin. The sealing resin contains at least one of a KSF phosphor adapted to absorb a portion of the blue light emitted from the light emitting element to emit red light and a MGF phosphor adapted to absorb a portion of the blue light emitted from the light emitting element to emit red light. The sulfide phosphor-containing layer includes a sulfide phosphor adapted to absorb a portion of the blue light emitted from the light emitting element to emit red light and a MGF phosphor adapted to absorb a portion of the blue light emitted from the light emitting element to emit green light.
    Type: Grant
    Filed: October 6, 2015
    Date of Patent: November 26, 2019
    Assignee: NICHIA CORPORATION
    Inventors: Atsushi Yamamoto, Kenji Kawano
  • Patent number: 10465872
    Abstract: The present disclosure discloses a light source module and an illuminating device. The light source module and the device include adjusting the peak wavelength, the peak intensity and the chromaticity coordinate of the blue light, the red light and the yellow-green light in the irradiation light emitted by the light source module to be within the preset ranges, respectively.
    Type: Grant
    Filed: July 30, 2018
    Date of Patent: November 5, 2019
    Assignee: Opple Lighting Co., Ltd.
    Inventors: Jie Qiang, Zhixian Zhou
  • Patent number: 10260697
    Abstract: A vehicle lamp includes a plurality of projection lenses arranged in parallel in a certain direction intersecting a vehicle longitudinal direction, a plurality of first light emitting elements arranged behind the plurality of projection lenses, a common light source support member configured to support the plurality of first light emitting elements, the light source support member including at least one translucent part, and at least one second light emitting element disposed behind the common light source support member. A first light distribution pattern is formed by irradiating a direct light from each of the first light emitting elements toward the front through each of the projection lenses. A second light distribution pattern is formed by irradiating the light emitted from the at least one second light emitting element toward the front through the at least one translucent part and any one of the plurality of projection lenses.
    Type: Grant
    Filed: February 17, 2017
    Date of Patent: April 16, 2019
    Assignee: KOITO MANUFACTURING CO., LTD.
    Inventor: Ippei Yamamoto
  • Patent number: 10234620
    Abstract: A light guide plate includes a light introduction surface to receive light supplied from a light source module and a light emission surface to emit the light outward, the light emission surface having a larger area than the light introduction surface. The light guide plate is of a material that transmits light and absorbs light in an absorption wavelength band. The light guide plate further includes a plurality of color patterns to convert the light supplied from the light source module into light in the absorption wavelength band.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: March 19, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Woosuk Lee, Guenhwan Kim, Juyoung Joung, Wondo Kee
  • Patent number: 10217907
    Abstract: A method of producing a nitride fluorescent material is provided. The nitride fluorescent material undergoes less change in chromaticity under a high-temperature and high-humidity condition and are excellent in durability. The nitride fluorescent material has a composition containing: at least one element selected from the group consisting of Ca, Sr, Ba, and Mg; at least one element selected from the group consisting of Li, Na, and K; at least one element selected from the group consisting of Eu, Ce, Tb, and Mn; Al; and N. The method includes: preparing a calcined product having the composition, bringing the calcined product in contact with a fluorine-containing substance, and heat-treating the calcined product at a temperature of 200° C. or more and 500° C. or less. A light emitting device using the nitride fluorescent material is also provided.
    Type: Grant
    Filed: February 23, 2017
    Date of Patent: February 26, 2019
    Assignee: NICHIA CORPORATION
    Inventors: Sadakazu Wakui, Tadayoshi Yanagihara, Shoji Hosokawa
  • Patent number: 10197820
    Abstract: Provided are quantum dots passivated by oligomers or polymers which are formed by a reaction of a first monomer having at least three thiol groups (—SH) at the terminal end with a second monomer having at least two functional groups at the terminal end that can react with the thiol groups, and a spacer group between the at least two functional groups.
    Type: Grant
    Filed: December 4, 2015
    Date of Patent: February 5, 2019
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Jinsuop Youn, Obum Kwon, Jun Woo Lee, Euihyun Kong, Jonggi Kim, Sang Cheon Park, Onyou Park, Heeje Woo, Sungseo Cho, Hyunjoo Han
  • Patent number: 10197720
    Abstract: A backlight module includes a glue frame, a light guide plate, a first light source assembly, and a second light source assembly. The light guide plate and the first and second light source assemblies are accommodated in the glue frame. The first light source assembly includes a light source that includes LED light sources mounted on a substrate. The second light source assembly includes a plurality of laser light sources mounted on a substrate and a diffuser. The light guide plate includes first and second incident surfaces. The light source of the first light source assembly and the first incident surface are oppositely positioned. The laser light sources and the second incident surface are oppositely positioned. The diffuser is positioned between the laser light sources and the second incident surface with predetermined distances. Colors of the LED light sources and the laser light sources are complementary colors.
    Type: Grant
    Filed: August 22, 2017
    Date of Patent: February 5, 2019
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventor: Yong Fan
  • Patent number: 10060604
    Abstract: A replacement LED insert module for retrofitting a pre-existing shoe box parking lot light. The module includes a plate into which an array of LED light fixtures capable of being operated directly from an AC power supply are mounted. The module is configured for attachment to a flange in the pre-existing shoe box parking lot light after the innards of the pre-existing light (bulbs, any reflectors, ballasts, etc.) have been removed.
    Type: Grant
    Filed: November 7, 2016
    Date of Patent: August 28, 2018
    Assignee: LED INSERT KIT ENTERPRISES, LLC
    Inventor: Darrel R. Shackelford
  • Patent number: 10030845
    Abstract: A backlight unit is discussed, which includes a frame including a bottom and a sidewall extending from the bottom; at least one substrate located on the frame, and a plurality of light sources mount on the at least one substrate; and a reflecting sheet located on the at least one substrate, wherein the reflecting sheet includes: a first sheet part located on the bottom, the first sheet part including a plurality of holes corresponding to the plurality of the light sources; a second sheet part extended from the first sheet; and a third sheet part extended from the second sheet part and located on the sidewall; wherein the second sheet part comprises a plurality of dot areas positioned sequentially in a direction from the first sheet part to the third sheet part and the plurality of dot areas include a first dot area and a second dot area, the first dot area including a plurality of dots having the same size and the second dot area including a plurality of dots having the same size, and wherein a size of the pl
    Type: Grant
    Filed: November 2, 2015
    Date of Patent: July 24, 2018
    Assignee: LG ELECTRONICS INC.
    Inventors: Sewon Oh, Eunseok Kim
  • Patent number: 10020430
    Abstract: The present invention provides a phosphor with a preferred orientation represented by the following formula: A2[MF6]:Mn4+, wherein A is selected from a group consisting of Li, Na, K, Rb, Cs, and NH4, M is selected from a group consisting of Ge, Si, Sn, Ti, and Zr. The preferred orientation is a (001)/(011) preferred orientation. The present invention also provides a method for fabricating the above phosphor. The present invention further provides a light-emitting element package structure employing the same.
    Type: Grant
    Filed: May 23, 2016
    Date of Patent: July 10, 2018
    Assignee: LEXTAR ELECTRONICS CORPORATION
    Inventors: Hoang Duy Nguyen, Ren Hong Wang, Chaochin Su, Ru-Shi Liu, Ching-Yi Chen, Yu-Chun Lee, Tzong-Liang Tsai
  • Patent number: 10012854
    Abstract: A curved display panel, a curved display device, and a method for fabricating the same are disclosed. Both the light output face and the light input face of the curved display panel are continuous curved surfaces. The curved display panel with a continuous curved surface has a bending degree which is closer to the natural bending degree of a liquid crystal panel, so that a relatively small stress is generated on the curved display panel, and the problem of serious peripheral light leakage caused by deformation of the curved display panel is alleviated. Besides, since the curvature radius of each point on the continuous curved surface changes slowly, the problem of serious peripheral light leakage caused by deformation of the curved display panel is alleviated, the complexity of the fabricating process is reduced, the fabricating process is simplified, and the production of the product is improved.
    Type: Grant
    Filed: April 17, 2015
    Date of Patent: July 3, 2018
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Xibin Shao, Yingying Qu, Honglin Zhang, Hebin Zhao, Seungmin Lee, Dan Wang, Xiang Li
  • Patent number: 9982189
    Abstract: A wavelength conversion member which is a resin-molded article made of at least one type of thermoplastic resin selected from polyolefins, polystyrene, styrene copolymers, fluorocarbon resins, acrylic resins, nylons, polyester resins, polycarbonate resins, vinyl chloride resins, and polyether resins. The thermoplastic resin contains less than or equal to 30 mass % of a complex fluoride fluorophore represented by A2(M1-xMnx)F6 (M is at least one type of tetravalent element selected from Si, Ti, Zr, Hf, Ge, and Sn; A is at least one type of alkali metal selected from Li, Na, K, Rb, and Cs and including at least Na and/or K; and x is from 0.001 to 0.3) and having a particle diameter D50, which is the median diameter at a cumulative volume of 50% in particle size distribution, of from 2 ?m to 200 ?m inclusive. The complex fluoride fluorophore being dispersed in the thermoplasticresin.
    Type: Grant
    Filed: December 26, 2013
    Date of Patent: May 29, 2018
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Toshihiro Tsumori, Masami Kaneyoshi, Masatoshi Ishii, Takehisa Minowa
  • Patent number: 9897266
    Abstract: A light source module includes a light source, a light guide plate on the light source and including at least one recess portion in an upper surface thereof, and a filter sheet on an upper surface of the light guide plate and having a pattern. The pattern may be configured to partially reflect and partially transmit light emitted from the light source through the light guide plate.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: February 20, 2018
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kyung Mi Moon, Sang Woo Ha, Jong Sup Song, Tetsuo Ariyoshi, Jun Cho, Won Soo Ji
  • Patent number: 9851089
    Abstract: Disclosed herein is a display apparatus having a cooling path provided to enhance cooling efficiency. The display apparatus includes a display panel configured to display images; a light source configured to radiate light toward the display panel; a bottom chassis disposed in rear of the light source; a case provided in rear of the bottom chassis; a circulative cooling path provided as to have air circulated surroundings of the bottom chassis.
    Type: Grant
    Filed: March 11, 2016
    Date of Patent: December 26, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jeong Shan Na, Jong Bin Kim, Jae Hak Cho
  • Patent number: 9748056
    Abstract: A push-button switch (1) is arranged such that, once a user presses an operation button (8), a switch body (20) performs an operation, and light from an LED (21) passes through a transmission plate (70) and then illuminates the operation button (8). A structure (700) is provided on a lower surface (70b) of the transmission plate (70) to refract the light from the LED (21) so that the refracted light is reflected within the transmission plate (70) and then guided to an upper circumferential wall (71) of the transmission plate (70).
    Type: Grant
    Filed: May 17, 2012
    Date of Patent: August 29, 2017
    Assignees: OMRON Corporation, Mitsubishi Electric Corporation
    Inventors: Yasuhiro Tanoue, Masaki Sugihara
  • Patent number: 9726801
    Abstract: The present invention relates to the field of display technology, particularly to a backlight unit and a display device. The backlight unit according to the present invention comprises: a light guide plate, the light guide plate comprising a first inclined side and an upper bottom surface and a lower bottom surface parallel with each other, wherein the angle between the first inclined side and the lower bottom surface is a sharp angle; a light emitting element arranged below the first inclined side; and a first reflector arranged on a surface of the first inclined side of the light guide plate. Compared with the prior art, the thickness of such a backlight unit can be kept relatively small, which facilitates lighter and thinner design of the liquid crystal display.
    Type: Grant
    Filed: March 5, 2015
    Date of Patent: August 8, 2017
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Shang Wang
  • Patent number: 9696587
    Abstract: Disclosed is a backlight module backplane, which includes a frame and a board. The frame includes a first sidewall, a top wall, a second sidewall, and a bottom wall that are sequentially connected in an end-to-end manner. The first sidewall and the second sidewall are of a straight plate structure. The top wall and the bottom wall are of a curved plate structure. The board has four edges respectively positioned against and fixed to the first sidewall, the top wall, the second sidewall and the bottom wall, so that the frame sets the board in a form of a curved surface. The backlight module backplane has reliable accuracy of curvature, a reduced weight, and a low cost. Also disclosed are a backlight module and a liquid crystal display device.
    Type: Grant
    Filed: November 28, 2014
    Date of Patent: July 4, 2017
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventors: Zuwei Zhang, Yujun Xiao, Guofu Tang
  • Patent number: 9632228
    Abstract: Provided are a light source device which may disperse a force shifted in a plane direction due to a difference in thermal expansion by a reflection sheet so as to maintain good display quality, and a display apparatus using the light source device. The light source device includes a transparent plate used as a light guide plate, a light source disposed to face a part of a peripheral surface of the transparent plate along the part thereof, and a reflection sheet attached to one wide surface of the transparent plate, and the reflection sheet is provided with a plurality of cut lines formed in a prescribed range including a center thereof at a prescribed interval. Thereby, even if the transparent plate and the reflection sheet are thermally expanded in relation to the different expansion coefficients from each other, it is possible to prevent the reflection sheet from being peeled off from the transparent plate.
    Type: Grant
    Filed: March 31, 2014
    Date of Patent: April 25, 2017
    Assignee: Sakai Display Products Corporation
    Inventor: Daisuke Teragawa
  • Patent number: 9625730
    Abstract: The invention provides a lenticular lens type three-dimensional image display device and a method of fabricating the device without a need for a clear plastic substrate transposed between the image and lenticular lenses. The device can be obtained by directly printing curable coatings onto the image, making them particularly well suited for volume production. The combination the image printing and application of curable coatings process can be joined together to conduct the single pass-process. The single pass-process allows for flexibility of the printing only selective areas of the substrate. Moreover, this process allows the device to be recyclable.
    Type: Grant
    Filed: July 27, 2012
    Date of Patent: April 18, 2017
    Assignee: ACTEGA NORTH AMERICA, Inc.
    Inventor: Anshyang Albert Lin
  • Patent number: 9571910
    Abstract: An electronic device includes a speaker, and a cover covering the speaker. The cover includes a transparent main portion, and a non-transparent border portion. The non-transparent border portion includes a substrate integrated with the transparent main portion. The substrate of the border portion defines a plurality of through holes corresponding to the speaker to transmit sound output from the speaker.
    Type: Grant
    Filed: July 31, 2014
    Date of Patent: February 14, 2017
    Assignees: INTERFACE OPTOELECTRONIC (SHENZHEN) CO., LTD., GENERAL INTERFACE SOLUTION LIMITED
    Inventors: Chien-Chih Lu, Juin-Ming Wu, Wei-Cheng Lou
  • Patent number: 9523883
    Abstract: An LCD module includes a screen, a light diffusion plate, a first lens, a second lens and an LED. The second lens covers the first lens which in turn covers the LED. The first lens has a first fly-eye lens array formed on a light-incident face thereof and a second fly-eye lens array formed on a light-emergent face thereof. Each of the first fly-eye lens array and the second fly-eye lens array includes multiple convex micro-lenses. The second lens is a light diffusion lens. Light emitted from the LED is diffused by the first lens and the second lens to uniformly illuminate the screen through the light diffusion plate.
    Type: Grant
    Filed: January 24, 2013
    Date of Patent: December 20, 2016
    Assignee: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Tai-Cherng Yu, I-Thun Lin
  • Patent number: 9454037
    Abstract: A display device includes a display panel and a backlight unit. The display panel is curved along a first direction. The backlight unit includes an upper surface, and a lower surface having a curvature different from a curvature of the upper surface. The backlight unit includes a bottom cover that includes a bottom portion, and a sidewall extending from the bottom portion, a plurality of light emitting diodes on the bottom portion and generating light, and a diffusion plate on the light emitting diodes. In the first direction from a center portion of the bottom portion to an outer portion of the bottom portion, pitches between the light emitting diodes along a surface of the bottom portion, are proportional to distances between the light emitting diodes and the diffusion plate in a direction substantially normal to positions of the bottom portion at which the light emitting diodes are disposed.
    Type: Grant
    Filed: August 27, 2014
    Date of Patent: September 27, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jaesang Lee, Yong-Hwi Kim, Luly Lee, Seongsik Choi
  • Patent number: 9232604
    Abstract: A color tunable lighting assembly (100), a light source and a luminaire are provided. The color tunable lighting assembly (100) comprises a light emitter (110), a luminescent layer (108) and a temperature controlling means (106). The light emitter (110) emits light (112) of a first color distribution. The luminescent layer (108) receives light (112) emitted by the light emitter (110). The luminescent layer (108) comprises luminescent material to absorb a portion of the light (112) of the first color distribution and to convert a portion of the absorbed light into light (102) of a second color distribution. The second color distribution is dependent on the temperature of the luminescent layer (108). The temperature controlling means (106) actively controls a temperature of the luminescent layer (108) to obtain a light emission by the color tunable lighting assembly. The light emission has a specific color distribution.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: January 5, 2016
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Rifat Ata Mustafa Hikmet, Ties Van Bommel, Shu Xu
  • Patent number: 9217894
    Abstract: A backlight assembly includes a first light guide plate, a second light guide plate, a light source part and a cover part. The second light guide plate is spaced apart from the first light guide plate. The light source part includes a first light source providing light to the first light guide plate and a second light source providing light to the second light guide plate. The cover part is disposed over the light source part. The cover part overlaps with a portion of the first light guide plate and a portion of the second light guide plate. A display apparatus having the above configuration has a narrow bezel and a thin profile.
    Type: Grant
    Filed: April 10, 2012
    Date of Patent: December 22, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seung-Hwan Chung, Cheol-Yong Noh, Kwang-Jin Jeong, Eui-Jeong Kang, Youn-Ho Han, Jae-Suk Yoo
  • Patent number: 9188309
    Abstract: The present invention relates to a direct type backlight module structure, which comprises a light casing having a first height, and the light casing comprises a base plate; a reflection device disposed on the base plate, and the reflection device comprises a plurality of curved structural units, and each of the curved structural units is bent to form a second height and an intermediate base, and each of the curved structural units is configured at a predetermined spacing therebetween to be disposed on the base plate; and a plurality of light sources disposed on the reflection device, and each of the light sources is configured at the predetermined spacing therebetween; in which each of the light sources is disposed on the intermediate base of each of the curved structural units of the reflection device.
    Type: Grant
    Filed: October 15, 2012
    Date of Patent: November 17, 2015
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Yewen Wang
  • Patent number: 9169991
    Abstract: A lens includes an incident surface and a light output surface. A plurality of light diverging portions is arranged on the light output surface and around a center of the light output surface. The light diverging portions each are a ring and are spaced from each other. An inner light diverging portion has a refraction angle larger than that of an outer light diverging portion. Light emitted into the lens from the incident surface is diffused by the light output surface and the light diverging portions to radiate out of the lens. A cross section of each light diverging portion has a shape of a triangle. The present disclosure also relates a backlight module using the lens.
    Type: Grant
    Filed: September 5, 2013
    Date of Patent: October 27, 2015
    Assignee: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: I-Thun Lin
  • Patent number: 9164318
    Abstract: A backlight assembly includes a first light guide plate, a second light guide plate, a light source part and a cover part. The second light guide plate is spaced apart from the first light guide plate. The light source part includes a first light source providing light to the first light guide plate and a second light source providing light to the second light guide plate. The cover part is disposed over the light source part. The cover part overlaps with a portion of the first light guide plate and a portion of the second light guide plate. A display apparatus having the above configuration has a narrow bezel and a thin profile.
    Type: Grant
    Filed: April 10, 2012
    Date of Patent: October 20, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seung-Hwan Chung, Cheol-Yong Noh, Kwang-Jin Jeong, Eui-Jeong Kang, Youn-Ho Han, Jae-Suk Yoo
  • Patent number: 9163805
    Abstract: There is provided a light emitting diode (LED) lens for double-sided lighting, including a light diffusion agent diffused therein, the LED lens including a light receiving portion receiving light, a first light transmitting portion corresponding to the light receiving portion and transmitting a portion of the light in an upward direction therefrom, a reflective portion extended from the first light transmitting portion and reflecting a portion of the light, and a second light transmitting portion facing the first light transmitting portion and transmitting the light reflected by the reflective portion in a downward direction therefrom.
    Type: Grant
    Filed: July 26, 2011
    Date of Patent: October 20, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Joo Hun Han, Je Myung Park, Hyun Do Park, Yong Keun Jee, Do Hyeon Lee, Ki Un Lee, Jin Tae Kim, Choul Ho Lee, Tetsuo Ariyoshi, Choong Gunn Park
  • Patent number: 9127830
    Abstract: In a surface light source apparatus 1 for irradiating light in a planar form by arranging a plurality of tubular light sources 2 at high density in the middle of a screen so that brightness at the middle of the screen is high, each tubular light source 2 positioned in rows at topmost and bottommost edges is arranged to be closer toward screen corner sections in a plan view so as to compensate for lack of brightness at the screen corner sections in a plan view. In this manner, each tubular light source 2 is arranged by placing each tubular light source 2 in the rows at the topmost and bottommost edges closer in a row direction toward each corner section B of the reflection sheet 5. Thereby, brightness at the middle of a screen is maintained and enhanced, and display quality at corner sections of the screen is improved.
    Type: Grant
    Filed: February 17, 2012
    Date of Patent: September 8, 2015
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Mitsuru Hineno
  • Patent number: 9080740
    Abstract: A planar lighting device includes a circuit substrate, a plurality of light sources disposed on the circuit substrate, a reflection layer disposed on the circuit substrate, the reflection layer including a first region having a plurality of openings where the respective light sources are located, and a second region connected to the first region, wherein the second region is bent in a direction from the first region, a hole pattern having a plurality of holes provided in the second region of the reflection layer, wherein at least two holes of the hole pattern are different in size, and an optical sheet disposed on the light sources.
    Type: Grant
    Filed: August 8, 2014
    Date of Patent: July 14, 2015
    Assignee: LG ELECTRONICS INC.
    Inventors: Yongjin Kim, Munheon Hong, Chilkeun Park, Sangcheon Kim, Mangeun Kim
  • Patent number: 9057806
    Abstract: A light source includes a carrier, a plurality of solid-state light-emitting devices, a light-incoupling component, a first reflector, and a plurality of second reflectors. The solid-state light-emitting devices and the light-incoupling component are configured on the carrier. The light-incoupling component has a bottom surface, a top surface, a plurality of side surfaces adjoining the bottom surface and the top surface, and a through hole extending from the bottom surface to the top surface. The solid-state light-emitting devices are located in the through hole. The first reflector covers the through hole. The second reflectors are configured on the side surfaces. Light emitted from the solid-state light-emitting devices enters the light-incoupling component via a sidewall of the through hole and leaves the light-incoupling component via the top surface thereof.
    Type: Grant
    Filed: August 15, 2011
    Date of Patent: June 16, 2015
    Assignee: Au Optronics Corporation
    Inventors: Chen-Hung Ho, Wei-Tien Chang, Shau-Yu Tsai
  • Publication number: 20150146413
    Abstract: A backlight module includes a back cover, a light source panel positioned on the back cover, a frame connected with the back cover and an optical film assembled to the frame. A pair of reflective plates are positioned between the frame and the back cover, and a plurality of through holes are defined on the pair of reflective plates. A chamber is cooperatively defined between the pair of reflective plates and the back cover, and inner surfaces of the chamber have a high reflectivity.
    Type: Application
    Filed: October 8, 2014
    Publication date: May 28, 2015
    Inventor: SHAO-HAN CHANG
  • Publication number: 20150146135
    Abstract: A backlight module, a liquid crystal display and a control method for driving the backlight source, the backlight module comprising an LED backlight source and a driving circuit, the LED backlight source comprising first LEDs each formed of a blue light chip, red phosphor powder and green phosphor powder, and second LEDs each formed of a blue light chip, a green light chip and red phosphor powder, and the driving circuit comprising driving circuit modules for driving the first LEDs and the second LEDs respectively. The liquid crystal display includes the above-mentioned backlight module and the display panel.
    Type: Application
    Filed: June 18, 2013
    Publication date: May 28, 2015
    Inventors: Lifeng Lin, Hongming Zhan, Yongcan Wang
  • Patent number: 9039222
    Abstract: A backlight module includes a substrate, a plurality of LED packages mounted on the substrate and a light diffusion board located above the LED packages. The light diffusion board includes a light incident surface facing toward the LED packages and a light output surface. A plurality of light-guiding portions is configured extending from the incident surface of the light diffusion board toward the LED package. Each light-guiding portion comprises a concave surface at an outer periphery thereof. A diameter of each light-guiding portion decreases gradually from light diffusion board toward the LED packages. The concave surface of each light-guiding portion is recessed inwardly from the outer periphery of the light-guiding portion. Light from the LED packages and emitting into the light-guiding potions is divergently and uniformly adjusted into the light diffusion board by the concave surfaces of the light-guiding portions.
    Type: Grant
    Filed: June 25, 2013
    Date of Patent: May 26, 2015
    Assignee: ADVANCED OPTOELECTRONIC TECHNOLOGY, INC.
    Inventors: Chao-Hsiung Chang, Pin-Chuan Chen, Li-Hsiang Chen
  • Publication number: 20150131266
    Abstract: A light emitting device package including light emitting devices, and optical lenses respectively disposed over the light emitting devices. Further, a respective optical lens includes an extending member extending from a body of the respective optical lens, and including a first portion laterally extending in a first direction substantially perpendicular to the central axis of the respective light emitting device, and a second portion extending towards the substrate in a second direction substantially parallel with the central axis of the respective light emitting device. A vertical cross section of the second portion is substantially symmetrical with respect to an axis that is spaced apart in the first direction from and substantially parallel with the central axis of the respective light emitting device.
    Type: Application
    Filed: January 20, 2015
    Publication date: May 14, 2015
    Applicants: LG ELECTRONICS INC., LG INNOTEK CO., LTD.
    Inventors: Jung Hoon SEO, Jun Ho JANG
  • Publication number: 20150131321
    Abstract: A backlight assembly includes a plurality of first light sources configured to emit a first color, and a plurality of second light sources configured to emit a second color different from the first color, where the backlight assembly is divided in a first boundary area, a second boundary area spaced apart from the first boundary area in a first direction, and a middle area between the first boundary area and the second boundary area, and an arrangement direction of first and second light sources of the plurality of first and second light sources in the first and second boundary areas is different from an arrangement direction of first and second light sources of the plurality of first and second light sources in the middle area.
    Type: Application
    Filed: June 13, 2014
    Publication date: May 14, 2015
    Inventors: Hyun-Deok IM, Jong-Hyuk KANG, Jung-Hyun KWON, Jae-Byung PARK, Hae-Il PARK, Dong-Hoon LEE
  • Publication number: 20150124434
    Abstract: A backlight module includes an optical film, a light source panel, a number of light sources mounted on the light source panel, and a reflective frame positioned between the optical film and the light source panel. The reflective frame includes an upper frame, a lower frame, and a reflective plate positioned between the upper frame and the lower frame. The upper frame includes a receiving portion for receiving the optical film, the lower frame is connected with the light source panel, and the reflective plate defines a number of through holes. The reflective plate, the lower frame, and the light source panel cooperatively define a closed chamber.
    Type: Application
    Filed: September 25, 2014
    Publication date: May 7, 2015
    Inventor: SHAO-HAN CHANG
  • Patent number: 9022632
    Abstract: A light emitting diode (LED) package includes: a main body mounted on a substrate; a light emitting diode that is mounted in the main body and emits light; and a lead frame exposed to allow the main body to be selectively top-mounted or side-mounted. A backlight unit includes: a light guide plate configured to allow a light source to proceed to a liquid crystal panel; a light emitting diode (LED) mounted in a main body mounted on a substrate and generating a light source; and an LED package having a lead frame exposed to allow the main body to be selectively top-mounted or side-mounted, and being mounted on the light guide plate.
    Type: Grant
    Filed: July 3, 2009
    Date of Patent: May 5, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Geun-Young Kim, Tomohisa Onishi, Jung-Hun Lee, Young-Taek Kim, Jong-Jin Park, Mi-Jeong Yun, Young-Sam Park, Hun-Joo Hahm, Hyung-Suk Kim, Seong-Yeon Han, Do-Hun Kim, Dae-Yeon Kim, Dae-Hyun Kim, Jung-Kyu Park
  • Patent number: 9022617
    Abstract: A lens includes a top surface, a bottom surface opposite to the top surface, and a side surface interconnecting outer edges of the top surface and the bottom surface. An aspheric protrusion member protrudes from the top surface. The protrusion member includes coaxial extending portions which are stacked along an optical axis of the lens. A step is formed between each two adjacent extending portions. A receiving chamber is recessed from the bottom surface and oriented toward the top surface. The receiving chamber includes a top surface being roughened to diffuse light and make the diffuse light evenly travel through the lens.
    Type: Grant
    Filed: September 5, 2013
    Date of Patent: May 5, 2015
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventor: I-Thun Lin
  • Patent number: 9024917
    Abstract: A light guide for illuminating a display screen, including a vertical cone-shaped entrance surface including an aperture for admitting light beams emitted by an LED, a folding mirror for reflecting the admitted light beams at an angle of approximately 90°, and for horizontally collimating the admitted light beams, a horizontal guide for guiding the reflected light beams to an exit surface, and an exit surface positioned above a perimeter of a display screen for directing the guided light towards a portion of the display screen, the exit surface being tilted vertically from the horizontal at a slight angle to direct the guided light beams towards the display, and being shaped horizontally as a concave lens to spread the guided light beams horizontally over an angular expanse of the display screen.
    Type: Grant
    Filed: March 9, 2013
    Date of Patent: May 5, 2015
    Assignee: Neonode Inc.
    Inventors: Thomas Eriksson, Lars Sparf, Björn Magnus Jacobsson Le Normand
  • Publication number: 20150116986
    Abstract: A heat conductive device is disclosed. The heat conductive device includes at least one collecting frame and at least one conductive plate vertically connected to each other. The collecting frame is for surrounding LEDs and is tightly attached to a mounting surface of the circuit board, and the conductive plate is tightly attached to a back plate. The heat conductive device overcomes the defects that there is no effective heat conductive path between the circuit board and the back plate. The heat accumulated on the circuit board is greatly transmitted to the back plate, and thus the heat conductive efficiency and the heat dissipation efficiency are enhanced.
    Type: Application
    Filed: November 8, 2013
    Publication date: April 30, 2015
    Inventors: Gang Yu, Shihhsiang Chen
  • Patent number: 9016923
    Abstract: A lighting device includes light sources arranged at an end, light guide portions arranged along an arrangement direction of the light sources and receiving light from the light sources, and light output portions arranged along a direction crossing the arrangement direction and exiting light from the light guide portions. The light output portions include at least a first light output portion and a second light output portion. The first light output portion is arranged relatively close to the light sources and the second light output portion is arranged relatively farther from the light sources with respect to the first light output portion. The light guide portions include at least a first light guide portion and a second light guide portion, and the first light guide portion is optically connected to the first light output portion and the second light guide portion is optically connected to the second light output portion.
    Type: Grant
    Filed: November 9, 2010
    Date of Patent: April 28, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Tomohiro Kosaka, Toshinori Sugihara, Tomofumi Osaki, Takehisa Yoshida
  • Patent number: 9019443
    Abstract: A backlight unit adapted to prevent light leakage and damage of its internal components due to a thermal deformation is disclosed. The backlight unit includes: a bottom cover with an opened upper surface; a printed-circuit-board disposed on at least one inner side surface of the bottom cover; a plurality of LEDs loaded on the printed-circuit-board; and a plurality of slits formed on at least one edge of the bottom cover opposite to the printed-circuit-board and configured to reduce thermal deformation of the bottom cover.
    Type: Grant
    Filed: August 4, 2010
    Date of Patent: April 28, 2015
    Assignee: LG Display Co., Ltd.
    Inventors: Heong Soo Park, Kyung Sik Dan
  • Publication number: 20150109764
    Abstract: A lens for a backlight of a display device, includes a lower surface, a groove portion defined recessed from the lower surface and comprising a curved surface; and an upper surface comprising an outer edge and a center, in a plan view, of which a distance from the lower surface decreases in a direction from the outer edge to the center.
    Type: Application
    Filed: April 30, 2014
    Publication date: April 23, 2015
    Applicant: Samsung Display Co., Ltd.
    Inventors: Ji Eun NAM, Young-Min PARK, Seok Hyun NAM
  • Patent number: 9010951
    Abstract: An optical lens, light emitting device, and display are provided. The optical lens may include a flange comprising an upper surface and a bottom surface, a protruder that protrudes with respect to the bottom surface, a first surface that extends from the upper surface of the flange, and a second surface inwardly recessed toward the protruder. The first surface and the second surface may meet to form an outer rim of the optical lens. The first surface may be sloped with respect to an optical axis, which is a straight line that passes through a center of the protruder and a center of the second surface. A ratio of a longest straight-line distance between outermost edges of the flange taken across the flange to a shortest straight-line distance from a lowermost point of the protruder to a plane including the outer rim may be approximately 0.5 to 5.
    Type: Grant
    Filed: May 12, 2014
    Date of Patent: April 21, 2015
    Assignee: LG Innotek Co., Ltd.
    Inventor: Chang Hyuck Lee
  • Publication number: 20150103513
    Abstract: Films useful as optical reflectors are prepared by coating a sheet of polyethylene terephthalate or other thermoplastic with acrylic polymer, white pigment, and optionally other additives such as impact modifiers, matting agents and UV stabilizers.
    Type: Application
    Filed: June 3, 2013
    Publication date: April 16, 2015
    Inventors: Jiaxin Jason Ge, Mark A. Aubart
  • Publication number: 20150098211
    Abstract: The exemplary embodiments of the present invention have a first refractive surface whose distance from a central axis gradually increasing as being distanced from a rear surface, and light from a light source can be effectively emitted from a first refractive surface to a lateral direction or an upper lateral direction.
    Type: Application
    Filed: December 14, 2012
    Publication date: April 9, 2015
    Inventors: Chang Hyuck Lee, Eun Sung Seo, Ki Cheol Kim, Hyun Ho Choi, Gi Seok Lee
  • Publication number: 20150098212
    Abstract: A semiconductor nanocrystal composition including a semiconductor nanocrystal, an organic additive, and at least one polymerizable substance selected from a polymerizable monomer, a polymerizable oligomer, and a combination thereof, wherein the composition has haze of greater than or equal to about 40% after polymerization.
    Type: Application
    Filed: October 1, 2014
    Publication date: April 9, 2015
    Inventors: Na Youn Won, Hyun A KANG, Eun Joo JANG, Shin Ae JUN, Oul CHO
  • Patent number: 8998437
    Abstract: A light emitting component board group includes first and second light emitting component boards that are rectangular in shape. The first light emitting component board has first short and long sides, and includes a first input connector provided on one of the first short sides, a first light emitting component group, a first output connector provided on another one of the first short sides. The second light emitting component board has second short and long sides, is arranged in adjacent to the first light emitting component board, and includes a second output connector provided close to one of the second short sided that is close to the one of the first short sides, a second light emitting component group, a second input connector provided close to another one of the short sides that is close to the other one of the first short sides.
    Type: Grant
    Filed: July 5, 2011
    Date of Patent: April 7, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Tsukasa Fujita