Reflector Having Particular Shape Behind Light Source Patents (Class 349/67)
  • Patent number: 11385394
    Abstract: A front light source module includes a light guide assembly and a light source assembly. The light guide assembly includes a light guide body and surface optical microstructures. The light guide body includes a first optical surface, a second optical surface opposite to the first optical surface, and a light incident surface. The light incident surface is connected between the first and second optical surfaces. The first optical surface is close to a viewer. The surface optical microstructures are embedded in the light guide body. Each surface optical microstructure includes an inclined surface and a transflective layer. The inclined surface is relatively inclined to the first optical surface or the second optical surface. The transflective layer is disposed on the inclined surface. The light source assembly is disposed beside the light incident surface. A reflective display device adopting the front light source module is also provided.
    Type: Grant
    Filed: April 22, 2021
    Date of Patent: July 12, 2022
    Assignee: Sichuan Longhua Film Co., Ltd.
    Inventors: Po-Hung Yao, Yao-Chang Wang
  • Patent number: 11353194
    Abstract: The present invention provides a multifunctional light-control accessory frame, which includes at least three accessory borders and at least three angle joints, the three angle joints connecting the three accessory borders to form a frame. An inverted buckling member for being joined with a lamp body is laterally and perpendicularly disposed on a side wall of the angle joint. A sheet mounting groove for mounting a light-control sheet and a lattice mounting groove for mounting a beam-forming lattice are disposed on the inner side of the accessory border. A light shielding plate mounting area and a filter paper clamping plate mounting area are disposed on the outer side of the accessory border. A light shielding plate quick-mounting structure is mounted on the light shielding plate mounting area, at least two positioning plates are disposed on the light shielding plate mounting area, and the light shielding plate quick-mounting structure is locked onto the positioning plates.
    Type: Grant
    Filed: September 8, 2017
    Date of Patent: June 7, 2022
    Assignee: Xiamen Fulaishi Film Tools Co., Ltd.
    Inventor: Qiang Zhan
  • Patent number: 11330727
    Abstract: A display device includes a frame, a display module is provided in the frame, a plurality of press sheets for fixing the display module are provided around the display module. Each press sheet is provided with a positioning part which limits a position of the press sheet in a direction parallel to a display surface of the display module.
    Type: Grant
    Filed: December 26, 2019
    Date of Patent: May 10, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Deli Fang, Tailiang Li, Shuo Chen, Ken Wen, Yongda Ma, Jian Xu
  • Patent number: 11156757
    Abstract: Optical films are disclosed that include a plurality of interference layers. Each interference layer reflects or transmits light primarily by optical interference. The total number of the interference layers is less than about 1000. For a substantially normally incident light in a predetermined wavelength range, the plurality of interference layers has an average optical transmittance greater than about 85% for a first polarization state, an average optical reflectance greater than about 80% for an orthogonal second polarization state, and an average optical transmittance less than about 0.2% for the second polarization state.
    Type: Grant
    Filed: February 13, 2020
    Date of Patent: October 26, 2021
    Assignee: 3M Innovative Properties Company
    Inventors: Adam D. Haag, Timothy J. Nevitt, Carl A. Stover, Andrew J. Ouderkirk, Robert D. Taylor, Zhaohui Yang
  • Patent number: 11029565
    Abstract: A display panel, a display device, and a method for manufacturing a display panel are provided. The display panel includes first and second substrates, first and second alignment films and a liquid crystal layer extending along a first direction and a second direction and sequentially along a third direction perpendicular to the first direction and the second direction. The liquid crystal layer includes a column of liquid crystal molecules along the third direction, and includes a first liquid crystal molecule closest to the first alignment film and a second liquid crystal molecule closest to the second alignment film. The first liquid crystal molecule and the second liquid crystal molecule have different tilting tendencies with respect to the plane defined by the first direction and the second direction, and form a twist angle.
    Type: Grant
    Filed: May 23, 2019
    Date of Patent: June 8, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Qian Jia, Jaegeon You, Xinxing Wang, Jikai Yao
  • Patent number: 10976619
    Abstract: A backlight device (illumination device) is provided with LEDs (light sources) and a light-controlling sheet (light-controlling member) that is arranged at the exit side of the outgoing-light path of the LEDs. The light-controlling sheet has a light-transmitting layer that transmits light, first light-shielding sections that are arranged at the LED side of the light-transmitting layer, and a second light-shielding section that is arranged at the opposite side to the first light-shielding section side of the light-transmitting layer. The first light-shielding sections and the second light-shielding section are repeatedly arranged side-by-side in an alternating manner.
    Type: Grant
    Filed: October 28, 2019
    Date of Patent: April 13, 2021
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Hisashi Watanabe, Hirotoshi Yasunaga, Youzou Kyoukane, Takeshi Masuda
  • Patent number: 10852585
    Abstract: The present disclosure relates to a light diffusing lens for a light emitting device, and the light diffusing lens according to an embodiment of the present disclosure includes: a light entering portion concavely formed on a center of a lower surface of a main body; a light emitting portion formed on an upper surface of the main body in a curved shape; a reflection portion formed on the lower surface of the main body along a circumference of the light entering portion; and a flange protruding outward from a lower end of the light emitting portion along an outer circumference of the main body, wherein the flange has a sheet escape recess formed on a lower portion thereof along a circumferential direction to allow an end of a sheet hole of a reflection sheet to escape thereinto, and is formed to be spaced apart from the reflection portion.
    Type: Grant
    Filed: October 31, 2019
    Date of Patent: December 1, 2020
    Assignee: Molex, LLC
    Inventor: Sung Guk Cho
  • Patent number: 10788708
    Abstract: It is an object to provide a technique capable of enhancing evenness of a planar light. A planar light source device includes a light source, a holding substrate, a light distribution control element having a light incident surface and a light outputting surface, a reflection part reflecting the light which has been reflected in an inner side of the light distribution control element toward the side of the display surface, and a case which houses the light source, the holding substrate, the light distribution control element, and the reflection part. A part opposite to the side of the display surface, in relation to at least the light distribution control element in a region between the light distribution control element and an inner wall of the case, is covered by the reflection part.
    Type: Grant
    Filed: July 21, 2017
    Date of Patent: September 29, 2020
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Tomohiko Sawanaka, Masaaki Takeshima, Saki Maeda, Masayoshi Aoshima, Kengo Nishikawa
  • Patent number: 10598925
    Abstract: A projection device According to the present invention there is provided a projection device (30,50,100) comprising, a light source (31,61) which can provide light beams (32a,b,c 62a,b,c), wherein the light beams (32a,b,c 62a,b,c) can be used to define one or more pixels of a virtual image (48); a MEMS micro mirror (34) which is arranged to receive the light beams (32a,b,c 62a,b,c) provided by the light source (31,61), and wherein the MEMS micro mirror (34) can oscillate about at least one oscillation axis (7,17) to scan the light beams (32a,b,c 62a,b,c); a reflective element (38), which comprises a plurality of convex reflective projections (39), and wherein the reflective element (38) is arranged so that light beams (32a,b,c 62a,b,c) reflected by the MEMS micro mirror (34) are incident on said convex reflective projections (39), so that the light beams (32a,b,c 62a,b,c) are reflected by the convex reflective projections (39); a beam combiner (45,81), wherein the beam combiner is arranged to receive the ligh
    Type: Grant
    Filed: May 10, 2013
    Date of Patent: March 24, 2020
    Assignee: North Inc.
    Inventors: Jonathan Masson, Lucio Kilcher
  • Patent number: 10539824
    Abstract: A color conversion panel includes a substrate, a first color conversion layer and a second color conversion layer disposed on the substrate, a planarization layer covering the first color conversion layer and the second color conversion layer, and a polarization layer disposed on the planarization layer. An outlet from the planarization layer penetrates the polarization layer.
    Type: Grant
    Filed: September 20, 2017
    Date of Patent: January 21, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kwang Ho Lee, Yeo Geon Yoon
  • Patent number: 10459270
    Abstract: A display device includes a display, at least one light source unit, a housing and a reflective sheet. The at least one light source unit has a light source, a diffusing lens that covers the light source, and a substrate to which the light source is mounted. The housing includes an inner surface to which the at least one light source unit is attached. The reflective sheet has a plurality of holes corresponding to the light sources, the reflective sheet being disposed between the substrate and the diffusing lens.
    Type: Grant
    Filed: January 4, 2019
    Date of Patent: October 29, 2019
    Assignee: FUNAI ELECTRIC CO., LTD.
    Inventors: Yasuyuki Fukumoto, Akihiro Fujikawa, Akira Yokawa
  • Patent number: 10381417
    Abstract: A white light-emitting device is capable of correcting deviations in chromaticity and includes a plurality of pixels, each of the plurality of pixels includes at least two sub-pixels, and each of the sub-pixels is a white light-emitting element. At least one sub-pixel out of the at least two sub-pixels includes a color filter. The optical characteristic of the color filter is set to correct the deviation of chromaticity of light emitted by the white light-emitting element. The white light-emitting device further controls an emission intensity of each of the white light-emitting elements.
    Type: Grant
    Filed: June 6, 2016
    Date of Patent: August 13, 2019
    Assignee: V. Technology Co., Ltd.
    Inventors: Koichi Kajiyama, Michinobu Mizumura, Yuya Fujimori
  • Patent number: 10371885
    Abstract: A backlight module is disclosed. The backlight module includes a reflection sheet including a first body and a second body; a light guide plate disposed on the first body of the reflection sheet; an optical film set disposed on the light guide plate; a plastic frame inside of which the reflection sheet, the light guide plate, and the optical film set are all disposed; and a connecting member configured to fixedly bond the second body to an inner side surface of the plastic frame. The present invention can ensure that the reflection sheet is fixedly bonded on the plastic frame well so that not only can a narrow frame design be achieved, but also the optical films can meet the requirement of fixing strength.
    Type: Grant
    Filed: April 15, 2015
    Date of Patent: August 6, 2019
    Assignees: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD., WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Jie Zeng, Wei Guo
  • Patent number: 10330975
    Abstract: The present application discloses a reflective display panel, a driving method thereof, a control method of a pixel unit and a reflective display device. The reflective display panel comprises: a base substrate, a reflective layer, first and second electrode layers, wherein the first electrode layer is on a side of the reflective layer distal to the base substrate, the second electrode layer is on a side of the first electrode layer distal to the base substrate and insulated from the first electrode layer, materials of the first and second electrode layers are each an electro-optic material, and orthogonal projections of the second and first electrode layers on the base substrate have overlapping areas corresponding to the pixel units.
    Type: Grant
    Filed: October 26, 2017
    Date of Patent: June 25, 2019
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zhihe Jin, Seungwoo Han, Mingfu Han, Xing Yao, Guangliang Shang, Zhichong Wang, Lijun Yuan, Haoliang Zheng, Yunsik Im
  • Patent number: 10165926
    Abstract: A dishwasher includes a washing chamber exposed to liquid during washing operation and enclosed by a plurality of walls of a washing container and by an internal wall of a door. At least one of the walls has at least one aperture which is covered or closed by at least one illumination element. The at least one illumination element includes at least one planar lighting element and at least one transparent, translucent or reflective planar element associated to the planar lighting element.
    Type: Grant
    Filed: April 10, 2014
    Date of Patent: January 1, 2019
    Assignee: BSH Hausgeräte GmbH
    Inventors: Marco Gleixner, Franz Kiechle, Karlheinz Rehm
  • Patent number: 10139653
    Abstract: A convex display including a first substrate, a second substrate, a display medium, a color filter layer, an optical film and an active device layer is provided. The second substrate is disposed opposite to the first substrate. The display medium is disposed between the first substrate and the second substrate. The color filter layer is disposed on the first substrate. The active device layer is disposed on the first substrate or the second substrate. The optical film is disposed on the first substrate. The optical film is farther away from the display medium than the color filter. The optical film includes a base material and optical microstructures embedded in the base material, wherein a refractive index of each of the optical microstructures is larger than a refractive index of the base material.
    Type: Grant
    Filed: September 11, 2017
    Date of Patent: November 27, 2018
    Assignee: GIANTPLUS TECHNOLOGY CO., LTD.
    Inventors: Chih-Teng Huang, Hsin-Yu Han, He-Guei Chen, Hsiao-Ching Shen
  • Patent number: 10042205
    Abstract: A backlight module includes a light guide plate, a plurality of light transmission elements and a light source. The light guide plate has at least one light incident surface, and the light transmission elements are disposed near the light incident surface and aligned to from at least one light transmission element row. The light source is disposed near one end of the light transmission element row and capable of emitting a light beam to the light transmission element row. Each of the light transmission elements reflects a part of the light beam to the light guide plate to form multiple independent light reflection paths, and the light transmission elements successively transmits a part of the light beam to form a light transmission path in the light transmission element row.
    Type: Grant
    Filed: June 13, 2017
    Date of Patent: August 7, 2018
    Assignee: Young Lighting Technology, Inc.
    Inventors: Chun-Wei Lee, Yu-Sung Lai, Sheng Chou, Han-Yuan Liu
  • Patent number: 10042201
    Abstract: The present invention provides a liquid crystal display device having a high transmittance and excellent visibility in a bright place. The liquid crystal display device of the present invention includes, in the given order, a backlight, a first circular polarizer, a liquid crystal panel, and a second circular polarizer. The first circular polarizer is a reflective circular polarizer including a reflective linear polarizer and a ?/4 plate disposed adjacent to the reflective linear polarizer. The liquid crystal display device satisfies (1) the liquid crystal panel is provided with color filters of two or more colors and has an aperture ratio lower than 43%, or (2) the liquid crystal panel is provided with no color filter and has an aperture ratio of 39% or lower.
    Type: Grant
    Filed: November 26, 2015
    Date of Patent: August 7, 2018
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Akira Sakai, Hiroyuki Hakoi, Kozo Nakamura, Kiyoshi Minoura
  • Patent number: 10031274
    Abstract: A light guide plate includes a diffusing surface that diffuses incident light having a concave cylindrical surface shape with curvature in a first direction, and an exit surface having a convex cylindrical surface shape with curvature in the first direction. The light guide plate is constituted such that a pattern provided behind the diffusing surface is visible from the exit surface side. The light guide plate has an incident surface on at least one end of the light guide plate in the first direction, and prisms that are formed in the diffusing surface and reflect visible light from a light source that enters the light guide plate from the incident surface toward the exit surface. Each prism has a reflecting surface oriented toward the incident surface side, and an angle between the reflecting surface and the diffusing surface increases, the further the prism is from the incident surface.
    Type: Grant
    Filed: May 17, 2016
    Date of Patent: July 24, 2018
    Assignee: OMRON Corporation
    Inventors: Eiji Muraoka, Takeshi Kakinuma, Yoshihiko Takagi
  • Patent number: 10025020
    Abstract: A 3D image display apparatus includes a display panel configured to display a multiview image, a light guide plate disposed in a rear of the display panel and spaced apart from the display panel, a main pattern repeatedly formed and spaced at a preset interval, and a light source configured to irradiate light to the light guide plate. A height of a sub pattern disposed in a light incident portion of the light guide plate near the light source among sub patterns constituting the main pattern is smaller than that of a sub pattern disposed in a central portion of the light guide plate.
    Type: Grant
    Filed: April 21, 2016
    Date of Patent: July 17, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jung-hoon Yoon, Ki-hyung Kang
  • Patent number: 9972164
    Abstract: A decoration device has a display panel having a cylindrical surface shape with curvature in a first direction on which a first pattern is provided, a light source to emit visible light, and a light guide plate with a diffusing surface opposes the display panel, the diffusing surface having a concave cylindrical surface shape, an exit surface opposing the diffusing surface having a convex cylindrical surface shape. The light guide plate is provided such that the first pattern is visible from the exit surface side. The light guide plate has a plurality of prisms that are formed in the diffusing surface and reflect the visible light that enters the light guide plate from the light source through an incident surface toward the exit surface. An angle between a reflecting surface of each prism and the diffusing surface increases as the distance of the prism from the incident surface increases.
    Type: Grant
    Filed: May 13, 2016
    Date of Patent: May 15, 2018
    Assignee: OMRON Corporation
    Inventors: Eiji Muraoka, Takeshi Kakinuma, Yoshihiko Takagi
  • Patent number: 9891470
    Abstract: A reflector sheet, a backlight module and a display apparatus, which relate to the display technical field, are provided. They can reserve a space for deformation during thermal expansion of the reflector sheet and prevent the reflector sheet from being deformed, thereby avoiding uneven light. The reflector sheet comprises a reflector sheet body and apertures located in the reflector sheet body and configured for allowing a luminous body to pass therethrough, the apertures comprising first apertures and second apertures, wherein each of the first apertures is configured for relatively fixing a luminous body passing therethrough and the reflector sheet body, and each of the second apertures is configured for reserving a gap between a luminous body passing therethrough and the reflector sheet body. Also disclosed is use of the reflector sheet for manufacturing a display apparatus.
    Type: Grant
    Filed: April 21, 2015
    Date of Patent: February 13, 2018
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Yongchun Lu, Yong Qiao, Hongfei Cheng, Jianbo Xian, Yongda Ma, Jian Xu
  • Patent number: 9885911
    Abstract: A display apparatus is provided. The display apparatus includes a liquid crystal display panel configured to display an image; a backlight unit located at the rear of the liquid crystal display panel, and including a plurality of light sources; a bottom chassis in which the backlight unit is positioned; and a reflector located in the bottom chassis, and configured to forwardly reflect light emitted from the plurality of light sources toward the liquid crystal display panel; and a reflection angle adjuster located in each corner of the reflector, and configured to reflect light emitted from the plurality of light sources in order to cause the reflected light to be incident toward corner areas of the liquid crystal display panel.
    Type: Grant
    Filed: March 13, 2015
    Date of Patent: February 6, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sang Eun Lee, Dae Hee Lee, Young Chol Lee, Byoung Jin Cho
  • Patent number: 9823508
    Abstract: A display device including a bottom chassis including a bent portion, a light module including a light source on the bent portion, a curved surface display panel on the bottom chassis and on the light module, and a reflector between the curved surface display panel and the bottom chassis, wherein a height between end portions of the bent portion and bottom chassis is greater than a height between central portions of the bent portion and bottom chassis.
    Type: Grant
    Filed: March 9, 2015
    Date of Patent: November 21, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Eui Jeong Kang, Myung Seok Kwon, So Jeong Na, Young Min Park, Jung Hyun Yang
  • Patent number: 9539824
    Abstract: An irradiation device includes a first LED row having a plurality of LEDs aligned in one row and electrically connected in series, and a second LED row having a plurality of LEDs aligned in one row and electrically connected in series. The first LED row and the second LED row are aligned adjacent to each other in a direction that crosses an array direction of the LEDs of the first LED row. A direction of current flowing in the first LED row is opposite to a direction of current flowing in the second LED row.
    Type: Grant
    Filed: February 6, 2015
    Date of Patent: January 10, 2017
    Assignee: Seiko Epson Corporation
    Inventors: Norihiro Masuda, Kazuhito Hori
  • Patent number: 9459485
    Abstract: There are provided an array substrate and a liquid crystal display apparatus. The array substrate comprises: array structures (12) and pixel electrodes (13) that are formed on a first substrate (11); wherein at least part of pixel regions corresponding to the pixel electrodes (13) are in optical diffusion structures (14); the pixel regions include pixel regions corresponding to pixels of different colors; the optical diffusion structures (14) are so arranged that reflectivity of light reflected from an optical diffusion structure of a pixel region, which corresponds to a pixel of a color having the longest light wavelength, is lower than reflectivity of light reflected from an optical diffusion structure (14) of a pixel region, which corresponds to a pixel of another color.
    Type: Grant
    Filed: November 15, 2012
    Date of Patent: October 4, 2016
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yun Sik Im, Jung Mok Jun
  • Patent number: 9360706
    Abstract: The present invention relates to a backlight module and a corresponding liquid crystal display panel. The backlight module includes a backboard having multiple concave portions formed on an inner surface of the backboard and multiple light sources mounted in the concave portions. The backlight module and the corresponding liquid crystal display device of the present invention can reduce the thickness of direct-type backlight module without affecting the optical quality of the lights emitted from the backlight module and increasing the manufacturing cost of the backlight module.
    Type: Grant
    Filed: April 13, 2012
    Date of Patent: June 7, 2016
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Jianfa Huang, Qian Cao, Chechang Hu
  • Patent number: 9310641
    Abstract: A display device with a higher contrast ratio is provided. The display device is provided with stacked polarizing plates arranged displaced from a parallel nicol state. Moreover, in the display device, at least one of a pair of stacked polarizing plates is displaced from a parallel state. The pair of stacked polarizing plates is arranged in a cross nicol state. A retardation plate may be provided between the polarizing plate and the substrate. As a result, the contrast ratio can be increased.
    Type: Grant
    Filed: September 27, 2010
    Date of Patent: April 12, 2016
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Yuji Egi, Tetsuji Ishitani, Takeshi Nishi
  • Patent number: 9298027
    Abstract: A liquid crystal display device includes a liquid crystal panel, an adhesive member on a lower surface of the liquid crystal panel, a light guide plate below the adhesive member, an optical sheet between the light guide plate and the liquid crystal panel and a dummy film between the light guide plate and the adhesive member, wherein the adhesive member is discontinuous in an area adjacent to the dummy film.
    Type: Grant
    Filed: July 5, 2013
    Date of Patent: March 29, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Eun Ju Shin, Joo Young Lee
  • Patent number: 9285616
    Abstract: The present invention provides a backlight module and a liquid crystal display device using the backlight module. The backlight module includes: a backplane (2), a backlight source (4) arranged in the backplane (2), a light guide plate (6) arranged in the backplane (2), and a reflector plate (8) arranged between the backplane (2) and the light guide plate (6). The backplane (2) includes a bottom plate (22) and a plurality of side plates (24) perpendicularly connected to the bottom plate (22). The bottom plate (22) has a surface that faces the light guide plate (6) and is an arc curved surface (222). The reflector plate (8) is positioned on the arc curved surface (222) and shows an arc curved configuration.
    Type: Grant
    Filed: January 13, 2014
    Date of Patent: March 15, 2016
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventor: Gang Yu
  • Patent number: 9261727
    Abstract: A liquid crystal display includes a liquid crystal display panel including pixels and a backlight unit disposed at a rear side of the liquid crystal display panel to supply first and second color lights having different wavelengths to the liquid crystal display panel. In each pixel, first and second color filters having first and second colors different from each other are sequentially arranged in a first direction. Each pixel also includes a first open portion allowing the first and second color filters to be spaced apart from each other in the first direction and a second open portion allowing the second color filter to be spaced apart from a color filter of an adjacent pixel in the first direction. The backlight unit supplies the first and second color lights to the liquid crystal display panel during first and second sub-fields obtained by dividing a frame.
    Type: Grant
    Filed: June 4, 2013
    Date of Patent: February 16, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seung-Suk Yang, Sangyeoul Lim, Yongchan Jeon, Young-Min Jung, Kwangjae Kim
  • Patent number: 9251745
    Abstract: Various embodiments of the present invention provide for systems and apparatus directed toward using a contact lens and deflection optics to process display information and non-display information. In one embodiment of the invention, a display panel assembly is provided, comprising: a transparent substrate that permits light to pass through substantially undistorted; a reflector disposed on the transparent substrate; and a display panel aimed toward the reflector and substantially away from a human visual system, wherein the reflector reflects light emitted from the display panel toward the human visual system. The reflector may comprise a narrow band reflector or a polarization reflector.
    Type: Grant
    Filed: November 26, 2014
    Date of Patent: February 2, 2016
    Assignee: Innovega, Inc.
    Inventor: Randall Sprague
  • Patent number: 9166093
    Abstract: A photo detection package including a package body configured to have an upward opened groove unit formed in the package body, a photo detection device mounted on a bottom surface of the groove unit and electrically connected externally, and a Light-Emitting Diode (LED) mounted on an inner surface of the groove unit that is formed of an inclined surface on a periphery of the bottom surface and electrically connected externally.
    Type: Grant
    Filed: April 21, 2015
    Date of Patent: October 20, 2015
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Ki Yon Park, Hwa Mok Kim, Young Hwan Son, Daewoong Suh
  • Patent number: 9158396
    Abstract: An OLED display device has a built-in touch panel and includes an upper substrate and a lower substrate arranged opposite to each other, a thin film transistor array formed on the lower substrate, an organic light emitting array formed on the thin film transistor array, a touch sensor array formed on the upper substrate opposite to the lower substrate for sensing external touch by a capacitive type, an upper contact pad formed on the upper substrate to be connected to the touch sensor array, a lower contact pad formed on the lower substrate opposite to the plurality of upper contact pads, a conductive spacer connected between the upper contact pad and the lower contact pad, and a signal transmission film electrically connected to a main pad formed on the lower substrate and the lower contact pad for supplying signals for controlling the thin film transistor array and the touch sensor array.
    Type: Grant
    Filed: June 24, 2011
    Date of Patent: October 13, 2015
    Assignee: LG DISPLAY CO., LTD.
    Inventor: Ho-Won Choi
  • Patent number: 9075264
    Abstract: A display device includes a display component, a light source, a rear side support member, and a reflective sheet. The light source is disposed on a rear side of the display device relative to the display component. The reflective sheet includes a bottom face part, a first side face part and a second side face part. The first and second side face parts have first and second protrusions at adjacent end edge portions of the first and second side face parts, respectively. The first protrusion overlaps with the end edge portion of the second side face part from the rear side while the reflective sheet is attached to the rear side support member. The second protrusion overlaps with the end edge portion of the first side face part from the rear side while the reflective sheet is attached to the rear side support member.
    Type: Grant
    Filed: January 22, 2014
    Date of Patent: July 7, 2015
    Assignee: FUNAI ELECTRIC CO., LTD.
    Inventor: Noritaka Tanabe
  • Patent number: 9036113
    Abstract: A backlight includes light emitting diodes; a substrate on which light emitting diodes are mounted; and a reflection sheet. The surface on which the light emitting diodes are mounted of the substrate is opposed to a rear surface of the liquid crystal display panel. The liquid crystal display panel and the substrate each have a shape in which a common width in a first direction is longer than a width in a second direction, which is orthogonal to the first direction. The width of the substrate in the second direction is shorter than the width of the liquid crystal display panel in the second direction. The substrate is opposed to, while avoiding being opposed to both end portions of the liquid crystal display panel in the second direction, a central portion between the both end portions of the liquid crystal display panel.
    Type: Grant
    Filed: April 27, 2011
    Date of Patent: May 19, 2015
    Assignees: JAPAN DISPLAY INC., PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.
    Inventors: Sachiko Yamazaki, Ikuko Imajo, Masashi Baba, Kikuo Ono
  • Publication number: 20150109559
    Abstract: A light source assembly includes a substrate extending in a first direction, and a plurality of light source parts arranged in the first direction. The light source part includes a light source disposed on the substrate to generate light, a first reflecting element disposed on the substrate and having a first opening which exposes the light source, a second reflecting element disposed on a first reflecting element and having a second opening which exposes the light source, the second reflecting element being smaller than the first reflecting element in a plan view, and a lens disposed on the light source and the second reflecting element to diffuse the light from the light source.
    Type: Application
    Filed: March 18, 2014
    Publication date: April 23, 2015
    Applicant: Samsung Display Co., LTD.
    Inventors: Lu-Ly LEE, Dong-Hyeon LEE, Young-Min PARK
  • Publication number: 20150109547
    Abstract: Disclosed is a liquid crystal display device that may include a first substrate; a first electrode on the first substrate, the first electrode including a plurality of first inclined planes; a nanocapsule liquid crystal layer on the first electrode, the nanocapsule liquid crystal layer including a plurality of nano-sized capsules dispersed in a buffer layer, each of the plurality of nano-sized capsules including nematic liquid crystal molecules having a negative dielectric constant anisotropy; and a second electrode on the nanocapsule liquid crystal layer, the second electrode including a plurality of second inclined planes facing the plurality of first inclined planes, wherein the nanocapsule liquid crystal layer is substantially, optically isotropic in a normal state, and is optically anisotropic when a voltage is applied to the first and second electrodes.
    Type: Application
    Filed: October 20, 2014
    Publication date: April 23, 2015
    Inventors: Kyeong-Jin KIM, Jung-Im HWANG, Ji-Na JEON, Kyung-Su HA, Min-Geun CHOI
  • Patent number: 9007547
    Abstract: A backlight module is disclosed, which comprises a light guide plate, a point light source and a substrate. The light guide plate comprises a top surface and a bottom surface opposite to each other and a side surface located between the top surface and the bottom surface. The point light source is disposed on the substrate. The backlight module further comprises a backplate, a front frame and a first reflective unit. The backplate is adapted to accommodate the light guide plate. The front frame is disposed adjacent to the top surface of the light guide plate. The point light source is disposed adjacent to the side surface. A bisector line of a light emitting range of the point light source is directed towards a plane in which the top surface or the bottom surface of the light guide plate is located.
    Type: Grant
    Filed: December 5, 2011
    Date of Patent: April 14, 2015
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventor: Jian-Fa Huang
  • Patent number: 8994894
    Abstract: In a liquid crystal display device including a backlight unit that irradiates the entire image formation region with light from light emitting diodes disposed in a concentrated manner, in order to reduce warpage of a reflection sheet to obtain uniform illumination, provided is a liquid crystal display device (1), including: a liquid crystal panel (3); a reflection sheet (6), which is disposed on a rear surface side of the liquid crystal panel (3) and is curved so as to have a concave surface facing the liquid crystal panel (3); a light emitting diode substrate on which a plurality of light emitting diodes (14) are disposed along a horizontal direction; and a support (21) for fixing the reflection sheet (6) at a curved portion of the reflection sheet (6).
    Type: Grant
    Filed: April 25, 2012
    Date of Patent: March 31, 2015
    Assignee: Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Sachiko Yamazaki, Ikuko Imajo, Masashi Baba
  • Publication number: 20150055059
    Abstract: A display device includes a display panel, a light source, and a reflective sheet. The reflective sheet includes a four-sided bottom face part with two pairs of mutually opposing sides, a first peripheral portion extending from one of the sides, and a second peripheral portion with a first section extending from adjacent one of the sides and a second section extending from the first section. The first peripheral portion and the second section of the second peripheral portion partially overlap with each other at a location between ends of the one of the sides to form one of side face parts of the reflective sheet. The second peripheral portion forms adjacent one of the side face parts of the reflective sheet that is adjacent to the one of the side face parts of the reflective sheet.
    Type: Application
    Filed: July 30, 2014
    Publication date: February 26, 2015
    Inventors: Tomokazu SUZUKI, Makoto NAMEDA
  • Publication number: 20150042897
    Abstract: The backlight device 12 of the present embodiment includes: a plurality of LEDs 17; a chassis 14 that is a plate-shaped member and on which the LEDs 17 are arranged; a plurality of diffusion lenses 40 that are fixed to the chassis 14, that individually cover the LEDs 17 from the side opposite to the chassis 14, and that exert optical effects on the light from the LEDs 17; a reflective sheet 21 that covers the plate surface of the chassis 14, that exposes the LEDs 17, and that has the lens insertion holes 21 through which the diffusion lenses 40 are respectively inserted; and reflective sheet holding members 30 that hold the reflective sheet 21 from the side opposite to the chassis 14, that engage the adjacent diffusion lenses 40 and 40, and that extend on the sheet surface of the reflective sheet 21 between the adjacent diffusion lenses 40 and 40.
    Type: Application
    Filed: November 22, 2012
    Publication date: February 12, 2015
    Applicant: SHARP KABUSHIKI KAISHA
    Inventor: Yuuki Namekata
  • Patent number: 8933871
    Abstract: A backlight unit and a display device including the backlight unit are discussed. According to an embodiment, the invention provides a light generating device comprising: a first layer; a plurality of light source devices disposed on the first layer and configured to emit light, at least one of the light source devices including a light emitting diode for generating the light; a reflection layer disposed on the first layer and configured to reflect the light emitted from the light source devices; a second layer covering the light source devices and the reflection layer and configured to propagate the light reflected by the reflection layer, the second layer including a plurality of depressed portions, at least one of the depressed portions disposed between two adjacent light source devices among the plurality of light source devices; and at least one third layer disposed on the second layer and configured to diffuse the light propagated by the second layer.
    Type: Grant
    Filed: August 20, 2010
    Date of Patent: January 13, 2015
    Assignee: LG Electronics Inc.
    Inventors: Sangtae Park, Sangjeon Kim, Sungwoo Kim, Soonhyung Kwon, Bupsung Jung, Seungchoon Bae, Hoyoung Seo, Seonghwan Ryu, Buwan Seo
  • Publication number: 20140354919
    Abstract: Provided is a light guide plate including: a main body for guiding incident light and transmitting the incident light from an upper surface of the main body; and a plurality of light converging patterns in a rounded wedge shape having a rounded upper surface on a lower surface of the main body to converge and reflect the incident light in a predetermined direction.
    Type: Application
    Filed: May 30, 2014
    Publication date: December 4, 2014
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Dong Yul KIM, JongHyeok KIM, JiHo SON, JungHun CHANG
  • Patent number: 8902378
    Abstract: In a liquid crystal display (LCD) device, an LED PCB with the reflection layer formed on surface thereof is installed at an upper side of the LED array and a reflection plate extends such that it sufficiently covers the lower portion of the LED array to thus make light emitted from the light source incident to its maximum level, thus coping with the reduction in the quantity of light resulting from making the LCD device thinner. The LCD device includes: a liquid crystal panel; an LED array supplying light to the liquid crystal panel; a light guide plate installed in a direction in which the LED outputs light, and guiding light; a reflection plate formed between the LED array and a lower portion of a lower cover; and an LED PCB attached to an upper portion of the lower cover at an upper side of the LED array and having a reflection layer formed at a side facing the light guide plate.
    Type: Grant
    Filed: July 9, 2010
    Date of Patent: December 2, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Sang-Hyun Lee, Won-Taek Moon, Yong-Ik Hwang
  • Patent number: 8902379
    Abstract: Disclosed are a display device and a method for manufacturing an optical member. The display device includes a light source; a plurality of wavelength conversion particles to convert a wavelength of a light generated from the light source; and a tube to receive the wavelength conversion particles, wherein a scattering pattern is formed on at least one surface of the tube.
    Type: Grant
    Filed: October 14, 2011
    Date of Patent: December 2, 2014
    Assignee: LG Innotek Co., Ltd.
    Inventor: Seung Ryong Park
  • Patent number: 8902381
    Abstract: The present invention provides a backlight module comprises a waveguide, a reflector, and elastic members. Wherein the elastic members are used to arranged on corners of the waveguide, and the reflector is arranged on a side of the waveguide facing the elastic members. And wherein each of the elastic members is provided with a slot in a surface facing the reflector, and the reflector is provided with tabs corresponding to each of the slots so as to be securely received within the slots. The present invention further provides a liquid crystal display device incorporated with such a backlight module. By this arrangement, the backlight module become more reliable, and more suitable for narrow-boarder design. The utilization of the reflector is also enhanced.
    Type: Grant
    Filed: October 15, 2012
    Date of Patent: December 2, 2014
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventors: Yu-chun Hsiao, Quan Li
  • Publication number: 20140340616
    Abstract: A backlight includes light emitting diodes; a substrate on which light emitting diodes are mounted; and a reflection sheet. The surface on which the light emitting diodes are mounted of the substrate is opposed to a rear surface of the liquid crystal display panel. The liquid crystal display panel and the substrate each have a shape in which a common width in a first direction is longer than a width in a second direction, which is orthogonal to the first direction. The width of the substrate in the second direction is shorter than the width of the liquid crystal display panel in the second direction. The substrate is opposed to, while avoiding being opposed to both end portions of the liquid crystal display panel in the second direction, a central portion between the both end portions of the liquid crystal display panel.
    Type: Application
    Filed: July 24, 2014
    Publication date: November 20, 2014
    Inventors: Sachiko Yamazaki, Ikuko Imajo, Masashi Baba, Kikuo Ono
  • Patent number: 8876350
    Abstract: A light source device includes a circuit board having a LED mounted on a surface, a lens attached to the surface so as to diffuse light emitted from the LED, a reflecting sheet having a through hole in the inside of which the lens is disposed and reflecting light emitted from the LED at an opposite side of the surface, and a restricting member which is disposed at one of an edge of the through hole in the reflecting sheet and the lens, and restricts a deviation of the reflecting sheet in a direction departing from the surface.
    Type: Grant
    Filed: May 20, 2010
    Date of Patent: November 4, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Hideto Takeuchi
  • Patent number: 8879017
    Abstract: A flat panel display device includes a backlight system and a display panel. The backlight system includes a reflector plate and a back frame that carries the reflector plate, wherein the back frame includes at least two primary assembling pieces, which are joined to form a main frame structure of the back frame; and the reflector plate includes a substrate layer and a reflection layer formed on the substrate layer, wherein the substrate layer is of a corrugated configuration, a wavy configuration, or a square wave configuration, so as to increase the stiffness of the reflector plate and thus reduce the potential risk of easy collapse of the reflector plate occurring after the assembling of the backlight system.
    Type: Grant
    Filed: November 23, 2011
    Date of Patent: November 4, 2014
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventors: Yu-Chun Hsiao, Yi-Cheng Kuo, Chong Huang