Edge Lighted Panel Patents (Class 362/600)
  • Patent number: 9482810
    Abstract: Provided is a circuit board including: a supporting substrate; light emitting elements mounted to the supporting substrate; a through hole passing through the supporting substrate; and a connector inserted into the through hole and for supplying an electric current to the light emitting elements.
    Type: Grant
    Filed: June 25, 2014
    Date of Patent: November 1, 2016
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Man Hue Choi, Min Jae Kim, Bi Yi Kim, Se Woong Na, Hyun Gyu Park, In Hee Cho, Seung Kwon Hong
  • Patent number: 9448352
    Abstract: A surface light source apparatus includes an end face for taking in light emitted from a light source and a main surface for emitting the light. The surface light source apparatus further includes a plurality of structure bodies formed on an opposed surface disposed opposite to the main surface in the surface light source apparatus, each of which has a reflecting surface facing the point light source. Each structure body has a cut-off portion which removes a portion on the reflecting surface in a longitudinal direction of the structure body and in a height direction.
    Type: Grant
    Filed: June 5, 2013
    Date of Patent: September 20, 2016
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Suguru Matsumura, Yoshihiro Kawasaki, Kazuhiro Hayashi, Akihisa Yamada, Masahiko Hirata, Keiichi Zaitsu
  • Patent number: 9451063
    Abstract: A mobile terminal having a terminal body and a display unit for outputting an image to a first surface of the terminal body is provided. The display unit includes a liquid crystal (LC) panel configured to form the image by receiving an electric signal, the LC panel being disposed to face the first surface of the terminal body, a driver integrated circuit (IC) configured to apply the electric signal to the LC panel, the driver IC being mounted to a first surface of the LC panel adjacent to a first edge of the LC panel and a light source portion configured to provide light to the LC panel, the light source portion being disposed close to a second edge of the LC panel opposite to the first edge.
    Type: Grant
    Filed: November 14, 2013
    Date of Patent: September 20, 2016
    Assignee: LG ELECTRONICS INC.
    Inventors: Seongcheol Lee, Jeongwoo Lee
  • Patent number: 9440579
    Abstract: A vehicle illumination apparatus is disclosed. The illumination apparatus comprises a retractable handle having a proximal end portion in connection with a tailgate. The retractable handle forms an internal passage therethrough from the proximal end portion to a distal end portion of the retractable handle. A light source is disposed proximate the proximal end portion and configured to emit a first emission through the internal passage. At least one light emitting portion is disposed along a length of the retractable handle and configured to output light derived from the first emission to an outside environment.
    Type: Grant
    Filed: May 11, 2015
    Date of Patent: September 13, 2016
    Assignee: Ford Global Technologies, LLC
    Inventors: Stuart C. Salter, Cornel Lewis Gardner, James J. Surman
  • Patent number: 9393900
    Abstract: Light device (1), comprising a light circuit (4) including at least one light emitting unit (6), a light diffusion panel (3), and a light housing (2) for mounting the light circuit (4) and light diffusion panel (3), wherein the thickness of the assembled light device (1) is approximately three millimeters or less, the length of the light device (1) and the length of the light diffusion panel (3) are at least approximately five times the width of the light device and the width of the light diffusion panel (3), respectively, and the light circuit (4) is arranged next to the light diffusion panel (3), the at least one light emitting unit (6) being arranged to emit light into at least one side edge of the light diffusion panel (3).
    Type: Grant
    Filed: March 15, 2010
    Date of Patent: July 19, 2016
    Inventors: Alfred Held, Heinz Kiermeier
  • Patent number: 9396701
    Abstract: A display apparatus suitable for use in any of a number of different display applications including, but not limited to, mounting to a dashboard of a motor vehicle. The display apparatus includes a display portion arranged to display an image having a brightness and a contrast, the brightness and/or contrast of the image being a function of viewing angle, the brightness and/or contrast having at least one local maximum along a direction substantially parallel to at least one primary vector, the at least one primary vector not being a vector substantially normal to a plane of the display portion.
    Type: Grant
    Filed: July 6, 2011
    Date of Patent: July 19, 2016
    Assignee: Jaguar Land Rover Limited
    Inventor: Lee Skrypchuk
  • Patent number: 9347638
    Abstract: A vehicular lamp includes: a lamp body having an opening portion; an outer cover that closes the opening portion and that, together with the lamp body, forms a lamp chamber between the outer cover and the lamp body; a light emission portion disposed within the lamp chamber; a vapor deposition sheet that is disposed within the lamp chamber and that covers the lamp body with at least a portion of the light emission portion exposed; and an engaging portion that at least one of the outer cover and the lamp body has and that is capable of engaging with the vapor deposition sheet and holding the vapor deposition sheet in a shape that substantially conforms to the outer cover or the lamp body.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: May 24, 2016
    Assignee: KOITO MANUFACTURING CO., LTD.
    Inventors: Atsushi Ishigami, Shigehiko Kazaoka
  • Patent number: 9285532
    Abstract: A backlight module for illuminating a display is described. The backlight module may be provided in an electronic device along with a light source for illuminating an LCD display. The backlight module includes a diffuser, a light guide having a top surface and a bottom surface, a reflector, and a prism structure positioned between the light guide bottom surface and the reflector. The prism structure has a plurality of prisms extending towards the light guide. The prism structure may include a film or a top portion of the reflector having a plurality of prisms extending towards the light guide.
    Type: Grant
    Filed: July 13, 2012
    Date of Patent: March 15, 2016
    Assignee: BlackBerry Limited
    Inventors: Hsin Chin Lee, Michael Lorne Purdy, Choongho Lee
  • Patent number: 9279932
    Abstract: A LGF roll-to-roll manufacturing includes the steps of: preparing a first optical layer with a first surface and a second surface; mechanically extruding a first integrated microstructure on the first surface of the first optical layer; subsequently coating a second optical layer on the first or second surface of the first optical layer; and curing the second optical layer to directly form a second microstructure on the first or second surface of the first optical layer. The first integrated microstructure and the second microstructure are separately formed at a time to provide a light guide film structure. In an embodiment, an additional optical layer is provided on the first optical layer.
    Type: Grant
    Filed: November 14, 2011
    Date of Patent: March 8, 2016
    Assignee: Jection Applied Materials Co. Ltd.
    Inventors: Hsin-Yi Lai, Erh-Ming Hsieh, Cheng-Hsien Wu, Cheng-Hao Chiu
  • Patent number: 9218771
    Abstract: The present application provides a an image compensation method for side-emitting backlight comprising steps of: S1, dividing the display screen into several regions; S2, arranging virtual light sources at one side of each region where actual light sources are located for imitating the actual light sources; S3, inputting a pixel value and a coordinate of the point to be compensated; S4, computing a ratio value between an all-full-lighting backlight brightness of the point to be compensated when fully lighted and an all-reduced backlight brightness of the point to be compensated when reduced in brightness; S5, obtaining a compensation factor of the point to be compensated, according to the ratio value; S6, compensating the pixel value of the point to be compensated by using the compensation factor; S7, determining whether all the points to be compensated in the image to be compensated have been compensated or not.
    Type: Grant
    Filed: May 16, 2012
    Date of Patent: December 22, 2015
    Assignee: Hisense Hiview Tech Co., Ltd
    Inventors: Cuicui Tian, Lili Liu, Wenfeng Xing
  • Patent number: 9194992
    Abstract: A light guide plate has a light introducing portion configured to confine light that is incident from an end surface, and a light guide-plate main body configured to emit incident light to an outside from a light emitting surface and provided continuously with the light introducing portion in a thickness smaller than a maximum thickness of the light introducing portion. The light introducing portion has an inclined surface inclined toward the light guide-plate main body from a surface having a larger thickness than a thickness of the light guide-plate main body, on at least one of a surface at a light emission side and a surface opposite to the surface at the light emission side.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: November 24, 2015
    Assignee: OMRON Corporation
    Inventors: Masayuki Shinohara, Kazuhide Hirota, Takako Ishikawa
  • Patent number: 9191541
    Abstract: An illumination device includes a light source and a columnar light guide including: an incident surface provided at least one longitudinal end of the light guide and allowing light emitted from the light source to enter the light guide therethrough; a diffusing surface which forms one side surface of the light guide extending along an optical axis of the incident light entering the light guide through the incident surface and has a row of light diffusion patterns provided to diffuse the incident light; and an exit surface located opposite to the diffusing surface, extending along the optical axis, and allowing light diffused by the diffusing surface to exit the light guide therethrough. The light diffusion patterns have a prismatic shape rising toward the exit surface and are provided on the diffusing surface from D1/2×8 or greater distance from the incident surface where D represents the diameter of the light guide.
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: November 17, 2015
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Katsuhiko Okamoto
  • Patent number: 9140930
    Abstract: The present invention provides a slim frame backlight module, which includes a backplane, a backlight source arranged inside the backplane, a side reflector plate arranged inside the backplane, and a light guide plate arranged inside the backplane. The light guide plate includes a bottom surface, a top surface opposite to the bottom surface, and at least one light incident surface connecting between the bottom surface and the top surface. The light incident surface is set inwardly inclined with respect to the top surface, so that the light incident surface and the top surface form therebetween an included angle less than 90°. Light emitting from the backlight source can be reflected by the side reflector plate to the light incident surface or is directly projected to the light incident surface to transmit through the light incident surface into the light guide plate.
    Type: Grant
    Filed: April 12, 2012
    Date of Patent: September 22, 2015
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventor: Jianfa Huang
  • Patent number: 9110323
    Abstract: According to one embodiment, a light guide plate includes a light guide plate main body disposed with one end side thereof opposed to a light source and convex portions provided on the both lateral portions in positions separate from the both end portions toward the center of the light guide plate main body. A frame includes fitted portions recessed in positions corresponding to the respective convex portions, into which the convex portions are to be fitted. A bonding member bonds the fitted portions and the convex portions fitted into the respective fitted portions and serves as a light-blocking member covering the interior of the fitted portions and the exterior of the convex portions.
    Type: Grant
    Filed: December 16, 2013
    Date of Patent: August 18, 2015
    Assignee: Japan Display Inc.
    Inventors: Toshikatsu Sugimoto, Yusuke Matsuzaki
  • Patent number: 9097917
    Abstract: An electronic display screen modular unit structure includes a modular unit which includes a pair of support boards and illumination strips. Through holes of the pair of support boards are provided with coupling members for connecting modular units, such that the modular units can be connected up and down as well as left and right. When each pair of support boards are separated from each other, the illumination strips can be unfolded flat to form a display screen at a predetermined width and height. Connecting plugs at two ends of a conductive wire are respectively connected with an output connecting terminal of the modular unit and an input connecting terminal of another adjacent modular unit, such that the modular units can be coupled and electrically connected with each other to form a display screen which is light and can be hanged on the wall or suspended.
    Type: Grant
    Filed: August 21, 2014
    Date of Patent: August 4, 2015
    Assignee: UBLeds Co., Ltd.
    Inventor: ShouWen Hsue
  • Patent number: 9062857
    Abstract: A light emitting device module is provided comprising a light emitting device package and a printed circuit board to which the light emitting device package is coupled, wherein the light emitting device package includes a sliding groove and a fixing groove, and wherein the printed circuit board includes a sliding protrusion coupled to the sliding groove to guide the light emitting device package to a predetermined position and a fixing protrusion coupled to the fixing groove at the predetermined position.
    Type: Grant
    Filed: April 20, 2011
    Date of Patent: June 23, 2015
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Yontae Moon, Eunseon Lee
  • Patent number: 9036240
    Abstract: The disclosure provides an electronic paper display. The electronic paper display includes an electronic paper panel. A light guide plate is disposed on the electronic paper panel. The light guide plate has a first surface and a second surface opposite to the first surface. A conductive pattern structural layer is disposed on the light guide plate. A light source is disposed on a side of the light guide plate. The first surface of the light guide plate is a patterned surface. A light generated by the light source is reflected or scattered to the electronic paper panel by the patterned surface.
    Type: Grant
    Filed: November 4, 2013
    Date of Patent: May 19, 2015
    Assignee: Wistron Corp.
    Inventor: Sheng-Shan Huang
  • Patent number: 9033538
    Abstract: Provided is an illumination appliance (1) that illuminates in a direction opposite a direction towards a mounting face (C) thereof, with radiation light of light sources (5) installed on a main-body housing (2) mounted on the mounting face (C), wherein the illumination appliance (1) is equipped with a light-guiding plate (11) that surrounds the outer circumference of the main-body housing (2) and protrudes out in the diameter direction thereof, has a light incident face (11a), and guides light in the diameter direction. Light radiated from the light sources (5) enters the light-guiding plate (11) from the light incident face (11a) thereof, and light radiated from the light-guiding plate (11) illuminates the mounting face (C).
    Type: Grant
    Filed: January 27, 2012
    Date of Patent: May 19, 2015
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Jun Hiraoka
  • Patent number: 9022635
    Abstract: Disclosed are a light guide plate and a backlight unit. The backlight unit according to the present invention includes: a light guide plate; a light source disposed on one side of the light guide plate; and a reflective plate disposed under the light guide plate, wherein, in the cross section of one side of the light guide plate, the light guide plate includes a plurality of unit slits including a first slit and a second slit, wherein the first slit and the second slit are inclined from a top surface toward the inside of the light guide plate with respect to a vertical direction of the top surface, and wherein the first slit and the second slit are symmetrical to each other with respect to the middle portion of the unit slit.
    Type: Grant
    Filed: November 30, 2010
    Date of Patent: May 5, 2015
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Jun-Bo Yoon, Joo-Hyung Lee, Jeong-Ho Yeon
  • Patent number: 9019199
    Abstract: Disclosed herein is an electrophoretic display apparatus switchable between a black-white mode and a color mode. The electrophoretic display apparatus includes an electrophoretic display panel, a light guide, a light source, a light-splitting element and a lens element. The light guide is disposed in front of a display area of the electrophoretic display panel. The light source is operable to emit a light, which is directed to the display area by the light guide. The light-splitting element is disposed between the light guide and the electrophoretic display panel, and is operable to split the light into a first, a second and a third beam each having a principal wavelength different from the others. The lens element is disposed between the light-splitting element and the display area, and is operable to direct the first, second and third beams to corresponding sub-pixels.
    Type: Grant
    Filed: November 6, 2012
    Date of Patent: April 28, 2015
    Assignee: E Ink Holdings Inc.
    Inventor: Shih-Yu Wang
  • Patent number: 9013371
    Abstract: A display apparatus including a light emitting body to improve external appearance thereof. The light emitting body is disposed inside a bezel to emit light. The bezel has a reflective surface to reflect light emitted from the light emitting body in front of the display apparatus. The bezel also has a light interruption groove to prevent light emitted from the light emitting body from affecting an image formed on the display module. The light emitting body is operatively connected to a user interface unit. A user manipulates a manipulation panel or a remote control to set an operation mode of the light emitting body from a menu item on an on screen display, and the light emitting body emits light in various forms based on the set mode.
    Type: Grant
    Filed: May 17, 2010
    Date of Patent: April 21, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Sung Soo Jung
  • Patent number: 8998477
    Abstract: An apparatus and method for providing a light source in the form of a surface are disclosed. In one embodiment, the apparatus comprises a first sheet including a light diffuser, and a light source placed along an edge of the first sheet. The first sheet diffuses light generated by the light source, wherein the distribution of light diffusing particles is varied throughout the light diffuser to emanate a predetermined light pattern.
    Type: Grant
    Filed: October 16, 2006
    Date of Patent: April 7, 2015
    Assignee: I2iC Corporation
    Inventors: Udayan Kanade, Balaji Ganapathy
  • Patent number: 8992064
    Abstract: A planar illumination device includes a light source unit, including a substantially planar emitting surface, configured to emit light to illuminate a substantially planar object, and a frame, formed in a frame shape enclosing the light source unit, disposed on an outer circumferential side of the light source unit, configured to hold the light source unit. The frame includes a reflecting part configured to reflect the light, and an absorbing part, formed integral with at least a part of an outer circumferential surface of the reflecting part, configured to absorb the light. The reflecting part and the absorbing part include joint interface therebetween that is inclined to a direction vertical to the emitting surface.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: March 31, 2015
    Assignee: Minebea Co., Ltd.
    Inventors: Tomotaka Horikawa, Masahito Totsuka, Shinji Kawai, Satoshi Kawashima
  • Patent number: 8985834
    Abstract: The present invention discloses an assembly method for backlight module and assembly equipment thereof. The method includes: stacking reflector, light-guiding plate and optical film to form a component entirety and fixing the component entirety; fixing at least two main connection elements in head-to-tail manner to form a back plate on four sides around the component entirety so as to fix reflector, light-guiding plate and optical film to corresponding position on the back plate respectively. The method is suitable for realization with automatic equipment. Through automatic equipment to assemble backlight module, the assembly efficiency can be improved to reduce the labor required for backlight module assembly and reduce labor cost.
    Type: Grant
    Filed: August 16, 2012
    Date of Patent: March 24, 2015
    Assignee: Shenzhen China Star Optoelectronics Technology co., Ltd.
    Inventors: Yi-cheng Kuo, Yu-chun Hsiao, Chengwen Que, Pangling Zhang, Dehua Li
  • Patent number: 8985831
    Abstract: A light guide plate includes a main body and a number of micro protrusions. The main body includes a light emitting surface, a bottom surface, and a light incident surface. The bottom surface is opposite to the light emitting surface. The light incident surface connects the light emitting surface and the bottom surface. The protrusions are randomly positioned on the light emitting surface, and are used for reflecting light rays towards random directions.
    Type: Grant
    Filed: April 17, 2013
    Date of Patent: March 24, 2015
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventor: Li-Ying Wang He
  • Patent number: 8979339
    Abstract: A light source module includes a light source and a light guiding pole. The light guiding pole is made of transparent material and has a light incident surface and at least one side surface connected to the light incident surface. The light source emits light rays, and faces the light incident surface. The light incident surface guides the light rays into the light guide pole, and the at least one side surface totally reflects the light rays. At least one slot is defined at the at least one side surface, and extends along a lengthwise direction of the light guiding pole. The at least one slot destroys the totally reflective path of a portion of the light rays arriving the at least one side surface, and thus the portion of the light rays emits from the at least one side surface.
    Type: Grant
    Filed: March 26, 2013
    Date of Patent: March 17, 2015
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventor: Li-Ying Wang He
  • Patent number: 8957880
    Abstract: In a local dimming technology for reducing power consumption of a display device using a backlight as in a liquid crystal display, the backlight is configured by a plurality of independently controllable light sources, an image is divided into areas of the same number as that of the controllable light sources and light emission intensity of the light source is calculated based on a feature value of each area. However, this technology has a problem that when a backlight luminance distribution within each area is not uniform, image quality is deteriorated or a power consumption reduction effect is lowered. In the present invention, the image is divided into areas of the number greater than that of the controllable light sources, and the light emission intensity of each light source is determined based on the feature values of a plurality of areas to reduce the above-described problem.
    Type: Grant
    Filed: June 25, 2009
    Date of Patent: February 17, 2015
    Assignee: Hitachi Maxell, Ltd.
    Inventors: Kazuhiko Tanaka, Yasutaka Tsuru, Yuya Ogi
  • Patent number: 8950881
    Abstract: A backlight module includes a light guide plate, a light source, a light shielding sheet, a light reflecting sheet and a light shielding member. The light guide plate has a hole formed thereon and the hole has a side wall. The light source is disposed neighboring to the light guide plate and used for emitting light into the light guide plate. The light shielding sheet is disposed on the light guide plate. The light reflecting sheet is disposed below the light guide plate. The light shielding member is disposed in the hole and covers the side wall of the hole, so as to block the light guided by the light guide plate from being emitted out of the hole.
    Type: Grant
    Filed: September 18, 2013
    Date of Patent: February 10, 2015
    Assignees: Darfon Electronics (Suzhou) Co., Ltd., Darfon Electronics Corp.
    Inventors: Yen-Chang Chen, Liang-Yu Yao, Hsin-Cheng Ho
  • Patent number: 8950902
    Abstract: In one embodiment, a light emitting device comprises an array of legs extending from a body of film with the bounding edges of the legs stacked, a first light source emitting light of a first color and a second light source emitting light of a second color into the stacked bounding edges where the light emitting region defined within the body is configured to extract light of a third color. In another embodiment, a light emitting device comprises three light sources positioned to direct light into a stacked array of bounding edges. In one embodiment, a method of generating light of adjustable color exiting a surface of a film is disclosed.
    Type: Grant
    Filed: May 6, 2013
    Date of Patent: February 10, 2015
    Assignee: FLEx Lighting II, LLC
    Inventors: Anthony J. Nichol, Zane A. Coleman
  • Patent number: 8934068
    Abstract: A backlight assembly includes a light source unit including a circuit board, a light source disposed on a first plane of the circuit board, and at least one connection unit disposed on a second plane opposite to the first plane of the circuit board and electrically connected to the light source, a receiving container having a bottom plate and sidewalls extending from edges of the bottom plate and receiving the light source unit, the bottom plate including at least one opening portion in which the connection unit is inserted and exposed to the outside, and at least one driving unit disposed at a rear surface of the receiving container and connected to the connection unit for driving the light source unit.
    Type: Grant
    Filed: April 29, 2014
    Date of Patent: January 13, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jin Hee Park, Bong-Hyun You, Jae-Chang Choi
  • Patent number: 8915633
    Abstract: There are provided systems, devices and methods for operating a light source to match a white point of ambient light. In one embodiment, a light control system is provided. The light control system includes a light source and a light sensor. The light sensor is configured to operate in conjunction with the light source to provide a visual effect. A controller is electrically coupled to the light source and the light sensor and configured to determine the intensity and color of light to which the light sensor is exposed and dynamically adjust the output of the light source to match the determined intensity and color of light to which the light sensor is exposed.
    Type: Grant
    Filed: October 8, 2012
    Date of Patent: December 23, 2014
    Assignee: Apple Inc.
    Inventors: Aleksandar Pance, Duncan Kerr, Brett Bilbrey, Brandon Dean Slack, Reese T. Cutler
  • Patent number: 8911131
    Abstract: An apparatus and method for coupling light from concentric illuminators into a light source in the form of a surface are disclosed. According to one embodiment, the apparatus comprises a plurality of concentric tubes, each tube including a light diffuser. The apparatus also has a sheet having a first edge with the plurality of concentric tubes placed along the first edge. Each tube of the plurality of concentric tubes diffuses light such that the light emanates in a predetermined pattern along the first edge of the sheet.
    Type: Grant
    Filed: August 30, 2012
    Date of Patent: December 16, 2014
    Assignee: I2iC Corporation
    Inventors: Udayan Kanade, Balaji Ganapathy
  • Patent number: 8905615
    Abstract: A light source module includes a first frame, a second frame, a light guide plate, a light source, at least one positioning element and at least one buffer element. The second frame is disposed corresponding to the first frame and has at least one through hole. The light guide plate is disposed between the first frame and the second frame and has a light incident surface and a side surface, and the side surface faces to the through hole of the second frame. The light source is disposed on the light incident surface of the light guide plate. The positioning element is disposed in the through hole of the second frame. The buffer element is located between the positioning element and the side surface of the light guide plate.
    Type: Grant
    Filed: December 7, 2011
    Date of Patent: December 9, 2014
    Assignee: Au Optronics Corporation
    Inventors: Shih-Chieh Chen, Yao-Chi Liu
  • Patent number: 8890797
    Abstract: A display device includes an illuminance sensor for detecting an illuminance in a surrounding environment, an input average luminance detection circuit for detecting an average luminance of input images, a frame insertion control circuit for producing a gray image frame and inserting the produced gray image frame into between an input image frame and its subsequently input image frame input, and an insertion luminance level generation circuit for determining a luminance of the gray image frame according to the illuminance detected by the illuminance sensor and the average luminance of the input images detected by the input average luminance detection circuit.
    Type: Grant
    Filed: February 22, 2012
    Date of Patent: November 18, 2014
    Assignee: OPTREX Corporation
    Inventor: Kenji Gondo
  • Patent number: 8870429
    Abstract: A lighting module includes a first side light source; a second side light source; a first light guide plate disposed between the first side light source and the second side light source; a second light guide plate disposed between the first side light source and the second side light source and disposed below the first light guide plate; a reflective plate between the first light guide plate and the second light guide plate; a first case coupled to one side of the first light guide plate, coupled to one side of the second light guide plate, and receiving the first side light source; and a second case coupled to the other side of the first light guide plate, coupled to the other side of the second light guide plate, and receiving the second side light source.
    Type: Grant
    Filed: November 25, 2013
    Date of Patent: October 28, 2014
    Assignee: LG Innotek Co., Ltd.
    Inventors: Han Gyoul Kim, Hwa Young Kim, Il Yeong Kang, Young Kuk Kwak, Sang Jun Hong, Jin Wook Kim, Young Sik Kim
  • Patent number: 8858025
    Abstract: Provided is a lighting device, including: a printed circuit board; one or more light emitting units formed on the printed circuit board; a resin layer which is formed on the printed circuit board, in which the light emitting units are embedded; a diffusion plate formed on an upper side of the resin layer, whereby an entire thickness of the lighting device can be reduced, and when the product is designed, a degree of freedom in design can be improved because flexibility is secured.
    Type: Grant
    Filed: March 5, 2013
    Date of Patent: October 14, 2014
    Assignee: LG Innotek Co., Ltd.
    Inventors: Moo Ryong Park, Chul Hong Kim, Kwang Ho Park
  • Patent number: 8845168
    Abstract: A backlight assembly includes a light source part, a base substrate, an insulation layer, and a reflection layer. The base substrate includes a light incident surface into which the light from the light source part is incident, and a light exiting surface adjacent to the light incident surface and through which the light exits. The insulation layer is formed on the light exiting surface of the base substrate. The reflection layer is formed on the insulation layer and forms a concave pattern along with the base substrate and the insulation layer and has an opening portion through which the light exiting from the light exiting surface passes.
    Type: Grant
    Filed: February 1, 2012
    Date of Patent: September 30, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyun-Min Cho, Jae-Byung Park, Don-Chan Cho
  • Patent number: 8833987
    Abstract: A mirror reflective element sub-assembly for an exterior rearview mirror assembly includes an electrochromic mirror reflective element and a heater pad disposed at a fourth surface of the rear substrate, with the heater pad having a substantially non-light transmitting portion and a light transmitting portion. A mirror back plate is disposed at said heater pad and has a plate portion having a rear plate surface and having a front plate surface facing the heater pad. The mirror back plate has a first structure at the rear plate surface that is configured to attach at an actuator of an exterior rearview mirror assembly. An indicator element is disposed at a second structure at the rear plate surface of the mirror back plate. The indicator element, when its light source is activated, emits light through the light transmitting portion of the heater pad and through the mirror reflective element.
    Type: Grant
    Filed: October 8, 2012
    Date of Patent: September 16, 2014
    Assignee: Donnelly Corporation
    Inventor: Niall R. Lynam
  • Patent number: 8837009
    Abstract: A light guiding member includes an input surface, an output surface, a counter surface, a reflective portion, and a diffusing portion. The light guiding member is a rod-shaped member that guides light in a longitudinal direction thereof. The input surface is one end face of the light guiding member and allows light to be input thereon. The output surface has a belt-like shape, extends in the longitudinal direction, and allows light to be emitted therefrom. The counter surface is located opposite the output surface. The reflective portion is a belt-like portion extending in the longitudinal direction and reflects light toward the output surface. The diffusing portion is a belt-like portion extending in the longitudinal direction and diffuses light emitted from the output surface. The diffusing portion is smaller than the reflective portion in width in a direction orthogonal to the longitudinal direction.
    Type: Grant
    Filed: January 30, 2013
    Date of Patent: September 16, 2014
    Assignee: Kyocera Document Solutions Inc.
    Inventor: Kenichiro Kawasaki
  • Patent number: 8830280
    Abstract: A driving unit of a display panel includes a control part, a gate driving part, a grayscale compensating part, and a data driving part. The control part provides a control signal and a grayscale signal. The gate driving part provides a gate signal to the display panel. The display panel is divided into a plurality of blocks according to a distance from a light source to each of the blocks. The grayscale compensating part outputs a compensating signal of an n-th frame using look-up tables, and the look-up tables respectively correspond to the blocks of the display panel. The data driving part converts the compensating signal of the n-th frame into a grayscale voltage and provides the grayscale voltage to the display panel. Accordingly, the driving unit of the display panel may improve a response speed of liquid crystals and display quality.
    Type: Grant
    Filed: July 24, 2013
    Date of Patent: September 9, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyoung-Rae Lee, Gyu-Su Lee, Min-Sik Um, Sang-Won Lee, Duk-Hwan Kang
  • Patent number: 8823902
    Abstract: A liquid crystal display device includes a liquid crystal panel including a display region and first to fourth non-display regions surrounding the display region; a light guide plate below the liquid crystal panel; and first and second LED assemblies facing opposite sides of the light guide plate and corresponding to the first and second non-display regions, respectively, that have different first and second widths, respectively, wherein the first LED assembly includes a plurality of first LED packages arranged at a first distance, and the second LED assembly includes a plurality of second LED packages arranged at a second distance.
    Type: Grant
    Filed: December 28, 2011
    Date of Patent: September 2, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Dal-Jae Lee, Hyo-Jin Kim, Hark-Myung Lee, Sung-Il Byun
  • Patent number: 8814415
    Abstract: A light-emitting module includes a light guide plate and a light source unit in accordance with an embodiment. The light guide plate include an upper surface, a lower surface facing the upper surface, a plurality of side surfaces connecting the upper surface and the lower surface, and a cross-sectional surface connected to at least one of the side surfaces. The light source unit includes a substrate disposed in correspondence with the cross-sectional surface and a point light source mounted on the substrate to emit light to the cross-sectional surface. Thus, light-emitting efficiency may be enhanced and the arrangement of point light sources may be optimized, so that a required amount of emitted light may be obtained using a small number of the point light sources. In addition, uniformity of luminance and heat-radiating efficiency may also be enhanced.
    Type: Grant
    Filed: April 23, 2010
    Date of Patent: August 26, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyoung-Joo Kim, Ju-Young Yoon, Jae-Joong Kwon, Chi-O Cho, Jin-Hee Park, Joo-Young Kim, Sung-Kyu Shim
  • Patent number: 8801258
    Abstract: The present invention provides a backlight module, which includes a backplane, a reflector plate arranged inside the backplane, a light guide plate arranged on the reflector plate, an optic film assembly arranged above the light guide plate, a backlight source arranged inside the backplane and corresponding to the light guide plate, a mold frame mounted to the backplane, and a resilient block wall that is arranged above the backlight source and a light incidence end of the light guide plate and is fixed to the mold frame by means of force-fitting, bonding, or snap fitting. The resilient block wall has a bottom face and a side face perpendicular to the bottom face. The bottom face and the side face are set in tight engagement with an upper surface of the light guide plate and the backlight source.
    Type: Grant
    Filed: October 19, 2012
    Date of Patent: August 12, 2014
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventors: Yuchun Hsiao, Pangling Zhang, Yue Wu, Quan Li
  • Patent number: 8803810
    Abstract: A device which has both educational and entertainment purposes. The device has a housing which allows multiple instances of the device to be stacked together. The device has a CPU, memory, storage, and a wireless module which allows communications with a base computer. The device also has a flat touch screen which serves as the user interface. The touch screen also serves as the video display for the device. Each device is approximately the size of a conventional building block. Variants include having some sides equipped with protuberance and some sides are equipped with voids. The protuberances of one device is constructed and arranged to interlockingly mate with the voids of another device. The device may be used in conjunction with multiple types of applications which have both educational and entertainment uses. The device may be used to receive images, data, commands, etc. from the base computer and the device may be used in conjunction with other similar devices.
    Type: Grant
    Filed: April 21, 2011
    Date of Patent: August 12, 2014
    Assignee: Rullingnet Corporation Limited
    Inventor: Dan Dan Yang
  • Patent number: 8783929
    Abstract: Provided are decorative glass and light-transmitting decorative glass products which are outstandingly decorative by processing a surface of a translucent glass plate, typically used as building materials or for other uses, without impairing the strength of the glass itself. The surface of the translucent glass plate 1, which is 4 to 25 mm in thickness, is impressed to form a plurality of radial cracks 7 each having a diameter of 0.01 to 3.0 mm, so that dots of the cracks 7 form an arbitrary character or pattern to thereby manufacture the decorative glass product. The light-transmitting decorative glass product includes the decorative glass, and a light source which is disposed so as to allow a highly directive irradiating beam to be incident upon any one of the four sides of the translucent glass plate 1 and enter the translucent glass plate.
    Type: Grant
    Filed: September 8, 2011
    Date of Patent: July 22, 2014
    Inventor: Kazuto Habu
  • Patent number: 8755002
    Abstract: A backlight assembly includes a light source unit including a circuit board, a light source disposed on a first plane, of the circuit board, and at least one connection unit disposed on a second plane opposite to the first plane of the circuit board and electrically connected to the light source, a receiving container having a bottom plate and sidewalls extending from edges of the bottom plate and receiving the light source unit, the bottom plate including at least one opening portion in which the connection unit is inserted and exposed to the outside, and at least one driving unit disposed at a rear surface of the receiving container and connected to the connection unit for driving the light source unit.
    Type: Grant
    Filed: November 21, 2011
    Date of Patent: June 17, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jin-Hee Park, Bong-Hyun You, Jae-Chang Choi
  • Patent number: 8740438
    Abstract: An illuminating module includes at least one light-emitting chip, a phosphor, and a color temperature conversion media. The light-emitting chip is capable of emitting wavelength light, and the phosphor is disposed in a propagation path of the wavelength light to transform the wavelength light into a first white light with a first color temperature. The color temperature conversion media is disposed in a propagation path of the first white light to transform the first white light into a second white light with a second color temperature. The second color temperature is smaller than the first color temperature.
    Type: Grant
    Filed: October 28, 2011
    Date of Patent: June 3, 2014
    Assignee: Young Lighting Technology Corporation
    Inventors: Chih-Ming Hu, Shih-Yuan Yu, Chia-Hao Chang, Chi-Yun Cheng, Jung-Min Hwang
  • Patent number: 8734001
    Abstract: A backlight assembly includes a receiving container, a first light source module and a first light source cover. The receiving container includes a bottom portion, a first sidewall and a second sidewall connected to the bottom portion. The first light source module is supported by the bottom portion and adjacent to the first side wall. The first light source cover makes contact with an exterior surface of the first sidewall. The first light source cover surrounds the second sidewall so that a first end portion of the first light source cover covers the first light source module.
    Type: Grant
    Filed: September 7, 2011
    Date of Patent: May 27, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyun-Chul Bae, Cheol-Yong Noh, Seong-Sik Choi
  • Patent number: 8721096
    Abstract: A backlight unit of an LCD device includes a first light source unit including a plurality of red, green and blue LEDs and a second light source unit including a plurality of white LEDs, the white LED provided between each of the first light source unit. A control unit divides the plurality of first and second light source units into a plurality of blocks and outputs control signals to the first and second light source units by detecting the luminance of inputted video signals. The backlight unit includes a first light source driving unit for driving the first light source and a second light source driving unit for driving the second light source by corresponding block to the first light source unit.
    Type: Grant
    Filed: June 28, 2005
    Date of Patent: May 13, 2014
    Assignee: LG Display Co., Ltd.
    Inventor: Hee Jeong Park
  • Patent number: RE44949
    Abstract: Laser lit flat panel displays are disclosed including edge-lit and direct lit backlights. In certain embodiments, laser assemblies are selected to obtain bandwidth distributions to reduce speckle.
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: June 17, 2014
    Assignee: Corporation for Laser Optics Research
    Inventor: Masayuki Karakawa