Plural Or Compound Patents (Class 362/616)
  • Patent number: 10436974
    Abstract: The embodiments of the present disclosure provide a backlight module and a display device, which increase the brightness range of the lateral entrance backlight module, thereby improving the HDR display effect of the display device. The backlight module in the embodiment of the present disclosure includes at least two lateral entrance light guide plates, each lateral entrance light guide plate is provided with a light bar. The number of light bars of the backlight module is increased, thereby increasing the maximum brightness of the backlight module. The overall brightness variation range of the backlight module is thus increased. In addition, the light bar of each lateral entrance light guide plate can be separately controlled, thereby increasing the brightness range of the backlight module. Therefore, the backlight module provided by this solution can effectively improve the HDR display effect of the display device.
    Type: Grant
    Filed: August 21, 2017
    Date of Patent: October 8, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Jinku Lv, Yutao Hao, Ying Chen, Jian Li, Donglei Li, Bochang Wang, Zhanchang Bu
  • Patent number: 10371878
    Abstract: A light regulation device includes a first light guide structure having an incident light, a second light guide structure having a light emitting surface, and a light deflection sheet having a first light deflection layer. All or a portion of the incident light is guided by the first light guide structure toward the light deflection sheet, is then deflected at least by the first light deflection layer to travel to the second light guide structure so as to be guided by the same to emit through the light emitting surface. The other portion of the incident light is guided by the first light guide structure toward the second light guide structure, and is then guided by the second light guide structure to emit through the light emitting surface.
    Type: Grant
    Filed: September 12, 2018
    Date of Patent: August 6, 2019
    Assignee: NATIONAL TAIWAN NORMAL UNIVERSITY
    Inventors: Tun-Chien Teng, Chun-Hao Sun, Sheng-Guo Xu
  • Patent number: 10365438
    Abstract: A backlight unit, a liquid crystal display and method of manufacturing the same are provided. The backlight unit includes a backlight source and a diffraction grating disposed on the backlight source. The diffraction grating is etched on the backlight source, each of monochromatic light emitting units in the backlight source corresponds to N grating patterns on the diffraction grating, where N is a natural number greater than 1.
    Type: Grant
    Filed: August 12, 2016
    Date of Patent: July 30, 2019
    Assignees: BOE Technology Group Co., Ltd., Beijing BOE Optoelectronics Technology Co., Ltd.
    Inventors: Xiaochen Niu, Xue Dong, Xiaochuan Chen, Wenqing Zhao, Ming Yang, Qian Wang, Pengcheng Lu, Jian Gao, Lei Wang, Rui Xu, Pengpeng Wang
  • Patent number: 10062738
    Abstract: Devices including organic and inorganic LEDs are provided. Techniques for fabricating the devices include fabricating an inorganic LED on a parent substrate and transferring the LED to a host substrate via a non-destructive ELO process. Scaling techniques are also provided, in which an elastomeric substrate is deformed to achieve a desired display size.
    Type: Grant
    Filed: November 26, 2014
    Date of Patent: August 28, 2018
    Assignee: The Regents of The University of Michigan
    Inventors: Stephen R. Forrest, Kyusang Lee
  • Patent number: 9977174
    Abstract: A lighting system can include a lightguide having an edge and two major surfaces. The lightguide can be mounted in a frame so that one of the major surfaces faces towards an area to be illuminated, while the other major surface faces away from the area. LEDs can couple light into the lightguide edge, with the coupled light emitting from both major surfaces. Light emitted from the major surface that faces away from the area to be illuminated can be reflected back into the lightguide by a reflective surface. The reflective surface can be separated from the lightguide by an air gap. The air gap can promote internal reflection at the major surface facing away from the area to be illuminated, thereby enhancing homogeneity and output of light towards the area to be illuminated. The frame can include integral wireways, reflector retention clips, and grounding circuitry.
    Type: Grant
    Filed: May 26, 2017
    Date of Patent: May 22, 2018
    Assignee: Cooper Technologies Company
    Inventor: Russ Clements
  • Patent number: 9944030
    Abstract: In a backlight module, a diffusive structure and a prism structure are replaced by a diffusive prism film formed on a substrate and transferred via In-Mold Decoration by Roller (IMR) to a light guide body via injection molding. A reflection film is also transferred to an opposite side of the light guide body via the same way. In such way, optical films may be readily transferred to the light guide body via two-side IMR during the process of injection molding of the light guide body, saving room taken by substrates of the optical components.
    Type: Grant
    Filed: March 4, 2016
    Date of Patent: April 17, 2018
    Assignee: Wistron Corporation
    Inventors: Ching-Fu Hsu, Jia-Chi You, Chien-Wei Chen
  • Patent number: 9915771
    Abstract: The present invention discloses a backlight system and a display device. In the backlight system, corresponding at least one beam expanding plate is arranged at the emergent side of a backlight module, and include a horizontal beam expanding plate and/or a vertical beam expanding plate, wherein each beam expanding plate includes an upper beam expanding sub-plate and a lower beam expanding sub-plate having the same periodic curved surface structures, the upper beam expanding sub-plate and the lower beam expanding sub-plate are arranged in parallel in such a manner that periodic curved surface structures are back-to-back against each other, and the relative position of the upper beam expanding sub-plate and the lower beam expanding sub-plate in the horizontal direction can be adjusted parallelly within a set range.
    Type: Grant
    Filed: November 21, 2014
    Date of Patent: March 13, 2018
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Shang Wang
  • Patent number: 9752757
    Abstract: A variety of light-emitting devices are disclosed that are configured to manipulate light provided by one or more light-emitting elements (LEEs). In general, a light-emitting device includes one or more light-emitting elements (LEEs) disposed on a base surface that are configured to emit light, a first optical element having a first surface spaced apart from the LEEs and positioned to receive light from the LEEs, a transparent second optical coupled to the first optical element, and a reflector element adjacent the second optical element arranged to reflect a portion of light output from the second optical element.
    Type: Grant
    Filed: January 31, 2014
    Date of Patent: September 5, 2017
    Assignee: Quarkstar LLC
    Inventors: John J. Uebbing, Roland H. Haitz
  • Patent number: 9563007
    Abstract: A modular light-emitting panel assembly has first and second light guides edge lit by respective light sources. Each light guide has a light input edge, opposed side edges, opposed major surfaces and a pattern of light extracting elements at at least one of the major surfaces. The light guides are juxtaposed with a side edge of the first light guide abutting a side edge of the second light guide at a seam and with the major surfaces nominally coplanar. Various embodiments of the panel assembly additionally include respective structures that reduce visibility of the seam when the light sources illuminate the panel assembly.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: February 7, 2017
    Assignee: Rambus Delaware LLC
    Inventors: Timothy A McCollum, Jeffery R Parker, Gregg M Podojil
  • Patent number: 9559268
    Abstract: A method of manufacturing an optical device for a back light unit includes forming a metal ingot by adhering insulating layers between metal plates. The metal ingot is cut in a vertical direction to create original substrates each with insulating layer portions in parallel with intervals therebetween. Solder resist is deposited on at least one of a top surface and bottom surface of an original substrate.
    Type: Grant
    Filed: January 30, 2015
    Date of Patent: January 31, 2017
    Assignee: Point Engineering Co., Ltd.
    Inventors: Bum Mo Ahn, Seung Ho Park, Ki Myung Nam
  • Patent number: 9435508
    Abstract: Disclosed is a light device comprising: a diffusion unit for diffusing and radiating light incident from a light source; and a condensing unit installed on a light radiating surface of the diffusion unit, including a micro lens array of lenses having sag determined depending on one of a light emitting area of the lighting device and total light flux of the lighting device. Thus, the lighting device can reduce a light flux emitted at the angle between 65 deg and 90 deg, thereby meeting UGR conditions.
    Type: Grant
    Filed: July 6, 2012
    Date of Patent: September 6, 2016
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Dong Hyun Lee, Dong Mug Seong, Jun Phill Eom, Beom Sun Hong
  • Patent number: 9429803
    Abstract: A display may have a thin-film transistor (TFT) layer and a color filter layer. The TFT layer may have a first substrate, a first black masking layer, a planarization layer, and a layer of TFT circuitry on the planarization layer. The color filter layer may have a second substrate and a second black masking layer on the second substrate. A portion of the inactive area may serve as a logo area for displaying desired information to the user. A reflective structure may be formed on the bottom surface of the planarization layer, on the bottom surface of the first substrate, on the bottom surface of the second substrate, or on the upper surface of the first substrate in the logo area. In another embodiment, the logo area may be backlit by transmitting light through one or more openings in the first and second black masking layers in the logo area.
    Type: Grant
    Filed: November 20, 2014
    Date of Patent: August 30, 2016
    Assignee: Apple Inc.
    Inventors: Kwang Soon Park, Byung Duk Yang, Robin Huang, Shih Chang Chang
  • Patent number: 9417378
    Abstract: A light guide including a plurality of reflection patterns in a reflection area in a facing surface facing a light exit surface, which area corresponds to a light emitting area, and the reflection patterns are arranged so that an amount of light reflected by the reflection patterns, emitted from the light emitting area to arrive at an observer observing the light exit surface is continuously changed in accordance with a position in the light emitting area.
    Type: Grant
    Filed: August 27, 2014
    Date of Patent: August 16, 2016
    Assignee: OMRON Corporation
    Inventors: Yoshihiko Takagi, Masayuki Shinohara, Yoshimasa Osumi, Norikazu Kitamura
  • Patent number: 9372298
    Abstract: The invention relates to a luminaire that enables the use of more sparsely distributed light sources, having a uniform fixture surface brightness and good color mixing. The luminaire comprises first and second light guide layers (10, 11) optically coupled together by at least one optical coupler (12a, 12b), which allows the passage of light from the first (10) to the second light guide layer (11). The luminaire also comprises a plurality of light sources (16a, 16b), each of which being arranged such that light emitted by the light source (16a, 16b) is coupled into the first light guide layer (10) at an interface surface (17)arranged substantially perpendicularly to a longitudinal axis of the first light guide layer (10). The luminaire further comprises a scattering element (14) adapted to cause light to be emitted from an emitting surface of the second light guide layer (11).
    Type: Grant
    Filed: May 28, 2012
    Date of Patent: June 21, 2016
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Siebe Tjerk De Zwart, Jochen Renaat Van Gheluwe, Wilhelmus Petrus Adrianus Johannus Michiels, Menno Van Baardwijk, Fetze Pijlman, Cornelis Gerardus Maria De Haas
  • Patent number: 9244212
    Abstract: This disclosure provides systems, methods and apparatus for illumination devices. In one aspect, an illumination device having a longitudinal axis includes a light source and a light guide. The light guide has a peripheral edge, a transmissive illumination surface, a center portion, and an upper surface. The transmissive illumination surface is oriented perpendicular to the longitudinal axis and disposed between the center portion and the peripheral edge. The upper surface is oriented relative to the illumination surface to define an angle ? therebetween. In some implementations, the angle ? can be greater than 15 degrees, for example.
    Type: Grant
    Filed: May 7, 2014
    Date of Patent: January 26, 2016
    Assignee: QUALCOMM MEMS Technologies, Inc.
    Inventors: Robert Louis Holman, Matthew Brian Sampsell
  • Patent number: 9207384
    Abstract: A backlight is disclosed and includes a visible light transmissive body primarily propagating light by TIR with a light input surface and a light output surface and a light guide portion and a light input portion. The light guide portion has a light reflection surface and a light emission surface. The light input portion has opposing side surfaces that are not parallel. One of the opposing surfaces is co-planar with either the light emission surface or the light reflection surface. A light source is disposed adjacent to the light input surface. The light source emits light into the light input portion. A reflective layer is disposed adjacent to or on the opposing side surfaces.
    Type: Grant
    Filed: March 16, 2015
    Date of Patent: December 8, 2015
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: William J. Bryan, John C. Schultz, Michael A. Meis, Patrick R. Destain
  • Patent number: 9201452
    Abstract: An electronic device may have a liquid crystal display with backlight structures. The backlight structures may produce backlight that passes through the liquid crystal display. A reflector may be used to enhance backlight efficiency. The electronic device may have a housing in which the display is mounted. The housing may be formed from an opaque material such as metal. An opening may be formed in the housing. Transparent housing structures such as a transparent logo structure may be mounted in the opening of the housing. During operation, a light source may produce light that passes through the transparent logo structure. A light guide structure may be used to guide light from the light source to the transparent logo structure. The reflector may be formed from a coating of metal on the light guide structure. Light from the light source may be used to form the backlight for the backlight structures.
    Type: Grant
    Filed: February 28, 2012
    Date of Patent: December 1, 2015
    Assignee: Apple Inc.
    Inventors: Jun Qi, Victor H. Yin
  • Patent number: 9176273
    Abstract: A display device includes at least two display panels and a frame for supporting the display panels. The frame includes a partition wall configured for supporting at least an end portion of the display panels. A backlight unit is located at one side of the display panels and provides light to the display panels. The backlight unit includes a strip light source, a longitudinal edge of which is extended along a longitudinal edge of the partition wall for emitting light to the display panels disposed at opposite side of the partition wall and two light-guiding plates disposed at opposite sides of the strip light source for guiding the light emitted from the strip light source into the display panels.
    Type: Grant
    Filed: July 11, 2013
    Date of Patent: November 3, 2015
    Assignee: AU OPTRONICS CORP.
    Inventors: Nan-Jui Chen, Chao-Heng Tu, Shih-Ting Chen
  • Patent number: 9164536
    Abstract: An electronic device may have a liquid crystal display with backlight structures. The backlight structures may produce backlight that passes through the liquid crystal display. A reflector may be used to enhance backlight efficiency. The electronic device may have a housing in which the display is mounted. The housing may be formed from an opaque material such as metal. An opening may be formed in the housing. Transparent housing structures such as a transparent logo structure may be mounted in the opening of the housing. During operation, a light source may produce light that passes through the transparent logo structure. A light guide structure may be used to guide light from the light source to the transparent logo structure. The reflector may be formed from a coating of metal on the light guide structure. Light from the light source may be used to form the backlight for the backlight structures.
    Type: Grant
    Filed: February 28, 2012
    Date of Patent: October 20, 2015
    Assignee: Apple Inc.
    Inventors: Jun Qi, Victor H. Yin
  • Patent number: 9135851
    Abstract: The present disclosure relates to methods and systems for measuring and correcting electronic visual displays. A method in accordance with one embodiment of the present technology includes generating a series of patterns for illuminating proper subsets of the light emitting elements of the display, such as regular grids of nonadjacent activated light emitting elements with the elements in between deactivated. For each generated pattern, an imaging device captures information about the activated light emitting elements. A computing device analyzes the captured information, comparing the output of the activated light emitting elements to target output values, and determines correction factors to calibrate the display to better achieve the target output values. In some embodiments, the correction factors may be uploaded to firmware controlling the display or used to process images to be shown on the display.
    Type: Grant
    Filed: August 13, 2014
    Date of Patent: September 15, 2015
    Assignee: Radiant Vision Systems, LLC
    Inventor: Ronald F. Rykowski
  • Patent number: 9116356
    Abstract: A system for reproducing stereographic images is provided that includes a display unit that has a pixel array for representing image data which reproduces the same when controlled with stereoscopic image data, and a light source for fully illuminating the pixel array. The system further includes a pair of glasses that are suitable to make the reproduced stereoscopic image data available to a wearer of the pair of glasses in an eye-selective manner. The display unit has at least one additional light source for fully illuminating the pixel array. Every light source is additionally configured to emit light in a plurality of narrow spectral ranges, thereby defining a color range, the spectral ranges of the light sources being orthogonal to each other. The system also includes a control unit that sequentially operates the light sources.
    Type: Grant
    Filed: March 1, 2010
    Date of Patent: August 25, 2015
    Assignee: Infitec GmbH
    Inventors: Arnold Simon, Thomas Mueller, Helmut Jorke
  • Patent number: 9057808
    Abstract: Systems, devices, and methods are provided for using a textured surface of a light guide plate to reduce friction between the light guide plate and an adjacent film. A textured surface across an interior region of the light guide may guide light towards a top surface of the textured light guide. A film positioned on the bottom surface of the textured light guide may reflect light towards the top surface. The film may be positioned within the interior region as a substantially flat (e.g., planar) layer. The surface features may reduce the friction to enable the textured light guide plate and/or film to expand or contract independently from one another due to varying temperatures without forming wrinkles on the film or changing the planarity of the film.
    Type: Grant
    Filed: May 3, 2013
    Date of Patent: June 16, 2015
    Assignee: APPLE INC.
    Inventor: Steven M. Scardato
  • Patent number: 9028123
    Abstract: A reflective display includes a reflective spatial light modulator and a frontlight. The frontlight includes a lightguide formed from a film. The lightguide includes an array of coupling lightguides continuous with a lightguide region of the lightguide. One or more light sources emit light into the array of coupling lightguides. Light from each coupling lightguide combines and totally internally reflects within the lightguide region. Light extraction features frustrate totally internally reflect light within the lightguide region such that the light exits the lightguide toward the reflective spatial light modulator in a light emitting region of the film. A cladding region is optically coupled to the lightguide so light from the light source propagates into the cladding region. A light extracting region is operatively coupled to the cladding region opposite the lightguide, and light in the cladding region is extracted. A method of producing a display is also disclosed.
    Type: Grant
    Filed: April 15, 2011
    Date of Patent: May 12, 2015
    Assignee: FLEx Lighting II, LLC
    Inventors: Anthony John Nichol, Zane Arthur Coleman
  • Patent number: 9028127
    Abstract: A lighting module comprises a light guide plate including a predetermined pattern; a case covering both sides of the light guide plate; and a light source which is disposed in the case and is configured to emit light to the both sides of the light guide plate, wherein the light guide plate is configured to emit the light from the light source through a top surface and a bottom surface of light guide plate, and wherein the lighting module is configured to emit first light upward from the top surface of the light guide plate, and second light downward from the bottom surface of the light guide plate.
    Type: Grant
    Filed: August 2, 2013
    Date of Patent: May 12, 2015
    Assignee: LG Innotek Co., Ltd.
    Inventors: Han Gyoul Kim, Young Kuk Kwak, Sang Jun Hong, Young Sik Kim
  • Patent number: 9016922
    Abstract: An escalator, a moving walkway or an elevator cage includes at least one illuminable transparent panel. The illuminable transparent panel has a construction containing a plurality of layers. The two side surfaces of each layer are bounded in the area dimension thereof by an edge region. The layers of the construction are arranged with the side surfaces against one another. The layer sequence of the construction is defined, wherein a first layer is a first glass pane, a second layer is a first transparent polymer layer, a third layer is a second glass pane, a fourth layer is a transparent polymer material plate containing light-dispersing particles, a fifth layer is a third glass pane, a sixth layer is a second transparent polymer layer and a seventh layer is a fourth glass pane.
    Type: Grant
    Filed: April 8, 2013
    Date of Patent: April 28, 2015
    Assignee: Inventio AG
    Inventors: Michael Matheisl, Gunther Niedermayer
  • Patent number: 9016923
    Abstract: A lighting device includes light sources arranged at an end, light guide portions arranged along an arrangement direction of the light sources and receiving light from the light sources, and light output portions arranged along a direction crossing the arrangement direction and exiting light from the light guide portions. The light output portions include at least a first light output portion and a second light output portion. The first light output portion is arranged relatively close to the light sources and the second light output portion is arranged relatively farther from the light sources with respect to the first light output portion. The light guide portions include at least a first light guide portion and a second light guide portion, and the first light guide portion is optically connected to the first light output portion and the second light guide portion is optically connected to the second light output portion.
    Type: Grant
    Filed: November 9, 2010
    Date of Patent: April 28, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Tomohiro Kosaka, Toshinori Sugihara, Tomofumi Osaki, Takehisa Yoshida
  • Patent number: 8998436
    Abstract: A light source apparatus includes a light guide plate, a number of optical fibers, at least two first light emitting diodes, and at least two second LEDs. Each fiber has a light exiting surface facing the light guide and at least two light entrances at both ends of the fiber. The second LEDs are located on both sides of the light guide plate. Light generated by the first LEDs has a wavelength longer than that generated by the second LEDs. The light generated from the first LEDs enters the light guide plate after travelling through the optical fiber to mix with the light generated from the second LEDs to provide a good color rendering property of the light generated by the light source.
    Type: Grant
    Filed: June 28, 2012
    Date of Patent: April 7, 2015
    Assignee: Zhongshan Innocloud Intellectual Property Services Co., Ltd.
    Inventors: Chih-Hsun Ke, Ming-Ta Tsai, Pu-Xian Hsu
  • Publication number: 20150092447
    Abstract: An image compensating apparatus located on a display panel includes a light incident surface set on the display region, a light emitting surface parallel with the light incident surface, and a plurality of light guiding channels parallel with each other. The display panel includes a display region displaying an image and a non-display region encircling a periphery of the display region. The light guiding channel interconnects with the light incident surface and the light emitting surface, and angles with the light incident surface. When viewed from a direction perpendicular to the light incident surface, the light guiding channel moves an image displayed on the display region for a predetermined distance for covering at least partial of the non-display region.
    Type: Application
    Filed: September 23, 2014
    Publication date: April 2, 2015
    Inventor: I-WEI WU
  • Patent number: 8985828
    Abstract: Flat illuminating display device with light emitting means to illuminate a film for display of an image applied to a display area, wherein the light emitting means are embodied as at least one light coupling unit arranged laterally at a translucent film thus forming a light duct, wherein the light such fed into the adjacent edge area into the film is reflected by a reflective layer, which is applied on at least one side, to homogeneously spread within the film, wherein a reflection screen to obtain a light emission is provided opposite of the display area to create said display area.
    Type: Grant
    Filed: August 3, 2012
    Date of Patent: March 24, 2015
    Assignee: Airbus Operations GmbH
    Inventors: Sabine Metzech, Karsten Hesse, Angelo Librizzi, Jörg Günther
  • Patent number: 8979349
    Abstract: Illumination devices and methods of making same are disclosed. In one embodiment, an illumination apparatus includes a light source, a light guide having a planar first surface, a first end and a second end, and a length therebetween, the light guide positioned to receive light from the light source into the light guide first end, and the light guide configured such that light from the light source provided into the first end of the light guide propagates towards the second end, and a plurality of light turning features that are configured to reflect light propagating towards the second end of the light guide out of the planar first surface of the light guide, each light turning feature having a turning surface and an interferometric stack formed on the turning surface.
    Type: Grant
    Filed: May 27, 2010
    Date of Patent: March 17, 2015
    Assignee: QUALCOMM MEMS Technologies, Inc.
    Inventors: Ion Bita, Sapna Patel, Clayton Ka Tsun Chan, SuryaPrakash Ganti, Brian W. Arbuckle
  • Patent number: 8979291
    Abstract: A lighting device for emitting direct light and indirect light, includes a first transparent light panel comprising at least one organic light emitting device, the first transparent light panel emitting direct light and indirect light during operation thereof; and at least a second transparent light panel comprising at least one organic light emitting device, the second transparent light panel emitting direct light and indirect light during operation thereof, the second transparent light panel being positioned so that at least a portion of indirect light emitted from the first transparent light is transmitted through the second transparent light panel and at least a portion of direct light emitted from the second transparent light panel is transmitted through the first transparent light panel, wherein the first transparent light panel is controllable independently from the second transparent light panel to control a ratio of direct light to indirect light emitted by the lighting device.
    Type: Grant
    Filed: May 7, 2013
    Date of Patent: March 17, 2015
    Assignee: Universal Display Corporation
    Inventors: Michael Hack, Ruiqing Ma, Duncan Jackson, Eoin Billings
  • Patent number: 8974070
    Abstract: A display device includes a display panel which displays an image, a backlight unit which supplies the display panel with light, an upper cover, and a lower cover. The upper and lower covers accommodate the display panel and the backlight unit. The backlight unit includes light guide plates spaced apart from each other, a light source part, an optical member and an optical diffusion member overlapping a space between the light guide plates. The optical diffusion member includes a diffusing part and a supporting part. The diffusing part faces the optical member, overlaps the space between the light guide plates, and diffuses light emitted from the light source part toward the optical member through the space between the light guide plates. The supporting part protrudes from a surface of the diffusing part which is opposite to the optical member, and is in a space between the light sources.
    Type: Grant
    Filed: July 31, 2013
    Date of Patent: March 10, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seung Hwan Baek, Eui Jeong Kang, Chan-Jae Park, Young-keun Lee
  • Publication number: 20150062868
    Abstract: A display with an electro-optical display module has a display area, with a light-transmissive cover arranged between the display area and a possible observer of the display area. The light-transmissive cover is bonded onto the display area by an adhesive, and provision is made for the surface of the light-transmission cover to be configured in a three-dimensional fashion.
    Type: Application
    Filed: December 19, 2012
    Publication date: March 5, 2015
    Inventors: Helmut Marquardt, Wolfgang-Peter Pawusch, Hans Wedel
  • Patent number: 8956034
    Abstract: The present invention is a display assembly including: a display and a backlight module, the backlight module including a prism structure. The backlight module generates light rays and directs the light rays to the display for illuminating the display. The prism structure of the backlight module is configured for causing the light rays to be directed to the display and for causing substantially all of the light rays to be emitted from the display assembly via the display into a pre-determined viewing envelope (ex.—towards an eye position of a viewer of the display.
    Type: Grant
    Filed: August 27, 2009
    Date of Patent: February 17, 2015
    Assignee: Rockwell Collins, Inc.
    Inventor: Ricky J. Johnson
  • Patent number: 8956038
    Abstract: A lighting device includes a light guide structure. The light guide structure is arranged in tiers by a plurality of thin-film modules in which a portion of a first surface of each lower one of the plurality of light guide layers is covered by an upper one of the plurality of light guide layers to form an uncovered portion of the first surface. Each of the thin-film modules is configured to transmit light therein emitted from light emitting diodes (LEDs) to the uncovered portion and emit the light from the uncovered portion of the first surface thereof.
    Type: Grant
    Filed: February 22, 2012
    Date of Patent: February 17, 2015
    Assignee: Empire Technology Development LLC
    Inventor: Takahisa Kusuura
  • Patent number: 8956037
    Abstract: A light guide plate includes a light incident surface and a plurality of micro cylinders protruding from the light incident surface in parallel. Each of the micro cylinders has a circumference surface and two opposite end surfaces. The circumference surface is connected to the light incident surface. The two end surfaces are positioned on two opposite ends of the circumference surface, and are perpendicular to the light incident surface. Each of the two end surfaces is circular arc-shaped, and the radius of each of the two end surfaces is in the range of 0.04 ?m to 0.07 ?m.
    Type: Grant
    Filed: April 12, 2012
    Date of Patent: February 17, 2015
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventor: Li-Ying Wang He
  • Publication number: 20150043044
    Abstract: A linear light source module comprises a holder, a first light guide, a second light guide, a first light-emitting element and a second light-emitting element. The first and second light guides are mounted on the holder and arranged in series, where the first light guide has a first emitting surface and the second light guide has a second emitting surface. The holder partially surrounds the first and second light guides. The first light-emitting element is disposed close to a first end of the first light guide, and a light beam emitted by the first light-emitting element is reflected and converted by the first light guide into first linear light emitted from the first emitting surface. The second light-emitting element is disposed close to a first end of the second light guide, and a light beam emitted by the second light-emitting element is reflected and converted by the second light guide into second linear light emitted from the second emitting surface.
    Type: Application
    Filed: June 23, 2014
    Publication date: February 12, 2015
    Inventors: SUNG-PO CHENG, THOMAS SHENG
  • Patent number: 8937595
    Abstract: An optical touch control apparatus, for detecting displacement between an object and the optical touch control apparatus. The optical touch control apparatus comprises: an object detecting apparatus, for detecting the object to generate an object image, having a first detecting area in a first mode and having a second detecting area in a second mode, wherein the first detecting area is larger than the second detecting area; an image sensor, for capturing at least one frame of the object image; and a control unit, for adjusting an image capturing area of the image sensor, according which one of the first detecting area and the second detecting area the object detecting apparatus utilizes.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: January 20, 2015
    Assignee: PixArt Imaging Inc.
    Inventors: Hsin-Chia Chen, Feng-Cheng Yang, Ching-Lin Chung, Ming-Tsan Kao
  • Patent number: 8926160
    Abstract: The light guide plate has at least two layers which are superposed on each other in the direction almost perpendicular to the light exit surface and contain the scattering particles at different particle concentrations, the scattering particles are polydisperse particles including a mixture of particles with different particle sizes, and the combined particle concentrations in each portion of the light guide plate is different by changing the thicknesses of the first layer and the second layer in the direction almost perpendicular to the exit surface.
    Type: Grant
    Filed: March 7, 2013
    Date of Patent: January 6, 2015
    Assignee: FUJIFILM Corporation
    Inventor: Osamu Iwasaki
  • Patent number: 8926112
    Abstract: The backlight device is configured in a planar geometry by the combination of a plurality of light emitting units. The light guide plate of the light emitting unit has a light guide unit that guides light from the light source and a light emission surface that emits light from the light guide unit. Adjacent light emitting units are arranged to cross to each other and the light emission surface of a light emitting unit overlaps with the light guide unit of another light emitting unit such that the light guide unit of each light guide plate of the light emitting unit does not extend outside the light emission region of the backlight device.
    Type: Grant
    Filed: April 10, 2012
    Date of Patent: January 6, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroshi Uchiike, Masanao Kurita
  • Patent number: 8928839
    Abstract: A display device includes a liquid crystal display panel that varies a phase of polarized light via liquid crystal molecules, wherein second recessed patterns of a second light guide plate are directly faced with first recessed patterns of a first light guide plate to form a first empty space, and wherein first flat surfaces of the first light guide plate are directly faced with second flat surfaces of the second light guide plate to form a second empty space narrower than the first empty space.
    Type: Grant
    Filed: June 5, 2014
    Date of Patent: January 6, 2015
    Assignee: LG Display Co., Ltd.
    Inventors: Se Hong Park, Jae Seok Park, Kyung Ha Lee
  • Patent number: 8920015
    Abstract: A backlight includes a visible light transmissive body having a light guide portion and a light input portion. The visible light transmissive body primarily propagates light by TIR and includes a light input surface and a light output surface. The light guide portion has a light reflection surface and a light emission surface. The light input portion has opposing side surfaces that are not parallel. A light source is disposed adjacent to the light input surface and emits light into the light input portion. A specularly reflective layer is disposed adjacent to but not in intimate contact with the opposing side surfaces and reflects more than 80% of visible light incident on the specularly reflective layer.
    Type: Grant
    Filed: September 23, 2008
    Date of Patent: December 30, 2014
    Assignee: 3M Innovative Properties Company
    Inventor: Patrick R. Destain
  • Publication number: 20140374864
    Abstract: A light guide unit includes, a first light guide that takes a light incident upon one end surface and emits a light from other end surface and from a light emitter on a side surface of the first light guide, and a second light guide that takes the light emitted from the other end surface of the first light guide then incident upon one end surface of the second light guide, and emits the light from a light emitter on a side surface of the second light guide. The first light guide includes a first mating member, and the second light guide includes a second mating member engaging with a first alignment member such that the side surface of the first light guide having the light emitter and the side surface of the second light guide having the light emitter are flush with each other.
    Type: Application
    Filed: February 19, 2013
    Publication date: December 25, 2014
    Applicant: Mitsubishi Electric Corporation
    Inventors: Ichihiro Abe, Koichiro Okamura, Yohei Nokami
  • Patent number: 8915639
    Abstract: A lighting system including a light guide plate having a groove, a light source module arranged in the groove, and a projection from a side of the groove in the light guide plate toward the light source module for guiding a light from the light source module to the light guide plate.
    Type: Grant
    Filed: February 14, 2012
    Date of Patent: December 23, 2014
    Assignee: LG Innotek Co., Ltd.
    Inventor: Moon Jeong Kim
  • Patent number: 8915640
    Abstract: Disclosed is a display device including a plurality of channels for forming a specific pattern, in which each of the channels includes: a light source module comprising one or more light sources for generating optical signals having different wavelengths; a driving module for controlling on/off or strength of the optical signal generated in the light source module; an optical waveguide for transferring the optical signal generated in the light source module to an outside without a loss of the optical signal; and a scattering pattern for scattering the optical signal transferred through the optical waveguide and displaying the scattered optical signal to the outside.
    Type: Grant
    Filed: October 11, 2012
    Date of Patent: December 23, 2014
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Suntak Park, Seung Koo Park, Min-Su Kim, Ki Uk Kyung
  • Patent number: 8911132
    Abstract: Optic entrance features may be used to optically control light transfer from a light source to a light emitting panel (LEP). In a particular embodiment, an LEP includes a first LEP side configured to emit light. The LEP also includes a second LEP side. The first LEP side and the second LEP side are opposite sides of the LEP. The LEP further includes a cutout area providing an air gap in the LEP through the first LEP side and the second LEP side. The LEP also includes a light receiving side. The cutout area is proximal to the light receiving side, and the light receiving side is configured to pass light through towards the cutout area.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: December 16, 2014
    Assignee: Cooper Technologies Company
    Inventors: Adam Moore Foy, Scott David Wegner
  • Patent number: 8899808
    Abstract: A luminaire module includes at least one light-emitting element (LEE); a light guide (LG) extending in a first direction from a first end of LG to a second end of LG to receive at the first end light emitted by the LEE and configured to guide the light to the second end; and an optical extractor (OE) optically coupled to LG at the second end to receive light from the LEE guided from the first end to the second end of LG. OE includes a first interface configured to reflect a first portion of the light exiting the LG and transmit a second portion of the light exiting the LG so that the second portion of the light exits OE to an ambient environment in the first direction, and a second interface configured to transmit light incident thereon to the ambient environment in a direction different from the first direction.
    Type: Grant
    Filed: January 10, 2014
    Date of Patent: December 2, 2014
    Assignee: Quarkstar LLC
    Inventors: Ingo Speier, Wilson Dau, Robert C. Gardner, George Lerman, Louis Lerman, Christopher H. Lowery, Brian D. Ogonowsky, George E. Smith, Robert V. Steele, Jacqueline Teng, Allan Brent York
  • Patent number: 8899815
    Abstract: A uniform reflective light-guide for accompanying an edge light source to form a backlight module for an LCD display includes a light-guiding layer and a reflective layer. The light-guiding layer further defines a light-introducing surface and a light-exiting surface. The light-introducing surface is to allow lights emitted from the edge light source to enter the light-guiding layer. The light-exiting surface perpendicular to the light-introducing surface is to allow at least a portion of the lights to leave the light-guiding layer. The reflective layer is to reflect the incident lights back to the light-guiding layer. The reflective layer and the light-guiding layer are manufactured integrally into a unique piece by a co-extrusion process so as to avoid possible existence of an air spacing in between. A reflective surface is defined to interface the reflective layer and the light-guiding layer, and a three-dimensional micro-structure is constructed on the reflective surface.
    Type: Grant
    Filed: July 20, 2011
    Date of Patent: December 2, 2014
    Assignee: Entire Technology Co., Ltd.
    Inventors: Jia-Jen Chen, Yu-Chun Tao, Yan Zuo Chen, Hao-Xiang Lin, Cheng-Yu Hsieh
  • Patent number: 8894265
    Abstract: The light guide plate includes a light guide plate body and a first medium, wherein the refractive index of the light guide plate body is greater than the refractive index of the first medium. The light guide plate body includes a plurality of gaps parallel with each other, wherein the first medium is disposed in those gaps. The light guide plate body further includes a light entrance end, wherein the gaps extend in directions both away and toward the light entrance end. Furthermore, an active region is defined on the light guide plate body and the gaps are located in the active region.
    Type: Grant
    Filed: October 14, 2011
    Date of Patent: November 25, 2014
    Assignee: AU Optronics Corporation
    Inventors: Wei-Tien Chang, Kuang-Tao Sung
  • Patent number: 8888352
    Abstract: A backlight structure includes a light source module and a light guiding plate. The light source module includes a circuit board, a lighting unit arranged on the circuit board, and a hollow baffle plate surrounding the lighting unit. The circuit board defines a groove in a surface thereof, and a bottom end of the baffle plate is embedded in the groove. The lighting unit is located between the light guiding plate and the circuit board, and the light guiding plate is disposed on the baffle plate. A method for manufacturing the backlight structure is also provided.
    Type: Grant
    Filed: August 12, 2012
    Date of Patent: November 18, 2014
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventor: Chih-Chen Lai