With Integral Optical Element For Guiding Or Distributing Light From The Light Source Patents (Class 349/62)
  • Publication number: 20140354917
    Abstract: A liquid crystal display (LCD) device includes a backlight module and an LCD panel. The backlight module includes an array of light emitting units and an optical film unit. Each of the light emitting units includes a laser light source unit configured to emit a white light and a scanning mirror configured to reflect the white light to different directions to light a target area. The white light reflected by the scanning mirror is transmitted by the optical film unit and the LCD panel in sequence.
    Type: Application
    Filed: July 26, 2013
    Publication date: December 4, 2014
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: YUNG-CHANG TSENG
  • 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: 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: 8902380
    Abstract: A grating sheet, a LCD device and methods for manufacturing the grating sheet and a liquid crystal display panel are provided. The grating sheet comprises a plurality of primary color gratings in parallel, each of which comprises a red R sub-grating, a green G sub-grating and a blue B sub-grating in parallel, and each sub-grating comprises an opening area and a reflective region disposed around the opening area and corresponds to a pixel unit on a sub-array substrate. The grating sheet, the liquid crystal display panel and methods for manufacturing the grating sheet and a liquid crystal display panel may be applicable to a system with a liquid crystal display.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: December 2, 2014
    Assignee: Beijing Boe Optoelectronics Technology Co., Ltd.
    Inventor: Linlin Lu
  • Publication number: 20140347601
    Abstract: A luminescent layer includes a series of down-converting luminophores dispersed in a matrix to collect ambient light energy over a range of wavelengths longer than a desired color band and a set of up-converting luminophores dispersed in the matrix. The series of down-converting luminophores transfer the ambient light energy to the set of up-converting luminophores, and the set of up-converting luminophores emits at least a portion of the ambient light energy in the desired color band.
    Type: Application
    Filed: October 28, 2011
    Publication date: November 27, 2014
    Inventors: Gary Gibson, Xia Sheng, Richard H. Henze
  • Publication number: 20140347602
    Abstract: A backlight module for a liquid crystal display including a light source, a triangular wedge for generating parallel beams, a reflecting device, and a deflection-collimating device, all of which are disposed in front of a liquid crystal display in sequence. The triangular wedge includes a first incident surface, a first emergent surface, and a second emergent surface. The included angle formed between the first emergent surface and the second emergent surface is 5°. The first incident surface is opposite to the light source. The reflecting device is disposed at one side of the first emergent surface to reflect the light rays from the first emergent surface back to the triangular wedge. The deflection-collimating device is disposed between the second emergent surface and the liquid crystal display to refract parallel beams from the second emergent surface to generate light rays vertical to the plane of the liquid crystal display.
    Type: Application
    Filed: August 8, 2014
    Publication date: November 27, 2014
    Inventor: Tong LI
  • Publication number: 20140347600
    Abstract: Disclosed is a display device with slimness and narrowness, wherein the display device may include a liquid crystal panel; a light source for providing light to the liquid crystal panel; a light guide formed of a glass material, wherein the light source is combined with one side of the light guide; a reflector formed on at least one of one and the other surfaces of the light guide, wherein the reflector includes an organic material and a metal compound; and an adhesive member formed on the one surface of the light guide confronting the liquid crystal panel, and configured to attach the liquid crystal panel and the light guide to each other.
    Type: Application
    Filed: December 27, 2013
    Publication date: November 27, 2014
    Inventors: Kyung Sun Yun, Seoung Jin Park, Moo Hyoung Song, Chang Soo Jang
  • Publication number: 20140347604
    Abstract: A backlight that includes an illumination device that has at least one light source, a circular-mode reflective polarizer, and a specular partial reflector is disclosed. The specular partial reflector is disposed between the illumination device and the circular-mode reflective polarizer. Furthermore, the specular partial reflector is in substantially direct polarization communication with the circular-mode reflective polarizer.
    Type: Application
    Filed: August 11, 2014
    Publication date: November 27, 2014
    Inventors: Mark B. O'Neill, Philip E. Watson, Matthew B. Johnson, Adam D. Haag, Keith M. Kotchick, Sergey Lamansky
  • Patent number: 8894210
    Abstract: An optical element is provided with: first polarization-separation layer (13) that is laminated on first surface (12b) of light guide body (12) and that, of the light incident from light guide body (12), transmits X-polarized light and reflects Y-polarized light that is orthogonal to the X-polarized light; polarization hologram layer (14) that is laminated on first polarization-separation layer (13) and that diffracts to a prescribed diffraction angle the X-polarized light that is incident within a prescribed range of angles of incidence and converts the X-polarized light to Y-polarized light; second polarization-separation layer (15) that is laminated on polarization hologram layer (14) and that, of the light incident from polarization hologram layer (14) transmits Y-polarized light and reflects X-polarized light; reflection layer (18) provided on second surface (12c) side of light guide body (12); and phase difference layer (17) that is provided between first surface (12b) of light guide body (12) and refle
    Type: Grant
    Filed: September 27, 2010
    Date of Patent: November 25, 2014
    Assignee: NEC Corporation
    Inventor: Shin Tominaga
  • Publication number: 20140340599
    Abstract: A method for integrating a liquid crystal screen into a carrier is proposed, wherein a first step involves providing a liquid crystal screen wherein a second step involves applying a polarization film to the liquid crystal screen, and wherein a third step involves sealing a margin and/or an edge of the polarization film at least partly using a seal.
    Type: Application
    Filed: September 13, 2012
    Publication date: November 20, 2014
    Inventors: Marc Rawer, Manfred Süss
  • Patent number: 8891051
    Abstract: A backlight of which power consumption can be reduced is provided. Further, by effective use of light emitted from the backlight, a display device with low power consumption is provided. The display device includes a light source device in which a plurality of light-emitting elements are arranged, a diffusion plate which is bonded to the light source device, a first polarizing plate which is bonded to the diffusion plate, a liquid crystal panel which is bonded to the first polarizing plate, and a second polarizing plate which is bonded to the liquid crystal panel. The light source device includes an organic resin having a projected spherical surface and a light-transmitting property covering each of the plurality of light-emitting elements and an organic resin having a planarized surface and a light-transmitting property covering the plurality of light-emitting elements and the organic resin having a projected spherical surface and a light-transmitting property.
    Type: Grant
    Filed: October 24, 2011
    Date of Patent: November 18, 2014
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Yoshiharu Hirakata
  • Publication number: 20140333870
    Abstract: The invention provides a liquid crystal display (LCD), which comprises: back plate; light-guiding plate, disposed on top of back plate; optical film, disposed on top of light-guiding plate; mold frame, connected to back plate to fix optical film and light-guiding plate; LCD panel, disposed on top of mold frame, comprising upper and lower glass substrates disposed oppositely, both glass substrates comprising bottom surface, top surface and side surface connecting top and bottom surfaces; driving chip, flexible circuit board, comprising metal wire and connected to LCD panel; wherein driving chip bonded to flexible circuit board, coupled through metal wire of flexible circuit board to LCD panel; joint of bottom and side surfaces of upper glass substrate disposed with first routing gap, flexible circuit board connected to LCD panel routing through first routing gap. The LCD can effectively hide COF in liquid crystal display to maximize borderless LCD design.
    Type: Application
    Filed: June 25, 2013
    Publication date: November 13, 2014
    Applicant: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventor: Yanxue Zhang
  • Publication number: 20140333872
    Abstract: A liquid crystal display device has at least: a first and a second polarizing layers arranged so that respective absorption axes thereof are orthogonal to each other; a first and a second substrates arranged opposite to each other between the first and second polarizing layers, at least either one of which has a transparent electrode; a twisted alignment mode liquid crystal cell arranged between the first and the second substrates; a first optical compensation film arranged between the first polarizing layer and the liquid crystal cell, including a first transparent support and a layer formed by curing a composition containing a first liquid crystal compound; and a second optical compensation film arranged between the second polarizing layer and the liquid crystal cell, including a second transparent support and a layer formed by curing a composition containing a second liquid crystal compound, as defined herein.
    Type: Application
    Filed: July 29, 2014
    Publication date: November 13, 2014
    Applicant: FUJIFILM CORPORATION
    Inventors: Hiroshi SATO, Yujiro YANAI, Megumi SEKIGUCHI, Akira YAMAMOTO
  • Publication number: 20140333871
    Abstract: A transflective liquid crystal display device and a manufacturing method thereof are provided. The transflective liquid crystal display device comprises: a transflective liquid crystal display module (10) comprising a plurality of pixel units, and each pixel unit comprising a transmissive area and a reflective area; a backlight source (20) provided below the transflective liquid crystal display module (10); a condensing layer (30) provided at a face of the backlight source (20) facing the transflective liquid crystal display module (10) and comprising a plurality of condensing lenses (31) which correspond to the plurality of pixel units one by one so as to converge the internal light emitted from the backlight source (20) at the transmissive areas of corresponding pixel units; and a reflective layer (40) provided between the condensing layer (30) and the liquid crystal display module (10) and comprising meshes (41) passing the internal light converged by each said condensing lens (31).
    Type: Application
    Filed: June 7, 2013
    Publication date: November 13, 2014
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Mingchao Li
  • Patent number: 8882324
    Abstract: A lighting device includes a light source 30, a light guide 20 provided adjacent to the light source 30 and including a light source light incident surface 21 on which light emitted by the light source 30 enters and a planar light emission surface 22 from which planar light is emitted, and an optical sheet 50 including a planar light incident surface 53 on which the planar light enters, and configured to change a traveling direction of the planar light because a light emission side of the optical sheet 50 has a shape in which plural columnar prisms 51 extending in parallel to the light source light incident surface 21 are arranged side by side. In each of the prisms 51, a distal surface has at least different two kinds of inclination angles.
    Type: Grant
    Filed: June 14, 2012
    Date of Patent: November 11, 2014
    Assignee: Japan Display Inc.
    Inventors: Masaya Adachi, Akiyoshi Tobe, Yasuhisa Shiraishi
  • Patent number: 8882326
    Abstract: A light guide plate includes an incident surface on which light outputted from point light sources is incident and an outgoing surface for outputting light incident from the incident surface, wherein a reflection-and-propagation surface for reflecting light toward the outgoing surface is formed in a back surface opposite to the outgoing surface. The outgoing surface is made up of a propagation region adjacent to the incident surface, a diffusion-and-propagation auxiliary region adjacent to the propagation region, and a diffusion-and-propagation region adjacent to the diffusion-and-propagation auxiliary region. Hot spots and bright/dark lines in vicinities of the incident surface are controlled primarily by curved portions of prism upper ends formed in the diffusion-and-propagation region, and viewing-angle characteristics of the light guide plate are controlled primarily by linear portions of the prisms.
    Type: Grant
    Filed: June 25, 2013
    Date of Patent: November 11, 2014
    Assignee: Panasonic Corporation
    Inventors: Takanori Kikuchi, Masami Ito, Masaru Fujita, Yusuke Kusaka
  • Patent number: 8879025
    Abstract: A transparent display device for enhancing optical transmissivity in a transparent mode, is discussed. The transparent display device may include a liquid crystal panel; a light source disposed at one side of a lower portion of the liquid crystal panel to emit light; a first polarizing plate for polarizing the light emitted from the light source; a light guide plate disposed at a lower portion of the liquid crystal panel to totally reflect the light polarized to an axis by the first polarizing plate to a lateral surface thereof and supply to the liquid crystal panel, and transmit natural light entered from a lower direction therethrough; and a second polarizing plate disposed at an upper portion of the liquid crystal panel to control the amount of polarized light passing through the liquid crystal panel.
    Type: Grant
    Filed: December 7, 2010
    Date of Patent: November 4, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Jong-Sin Park, Eung-Do Kim, Se-Hong Park, Kyung-Ha Lee
  • 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
  • Patent number: 8879019
    Abstract: A liquid crystal display apparatus including: a liquid crystal panel which includes a device substrate, a counter substrate arranged to face the device substrate, and a protruded section in which the device substrate protrudes from an end portion of the counter substrate; a lighting system which includes an optical sheet arranged on a side which is opposite a light emission side of the liquid crystal panel; and a first frame portion which supports an edge of the protruded section of the device substrate and includes a protruded plate section that protrudes between the device substrate and the optical sheet, wherein the first frame portion includes a first stage section which faces a side end surface of the device substrate and a second stage section which is arranged between an edge of the protruded plate section and the first stage and which faces an outline side of the optical sheet.
    Type: Grant
    Filed: August 2, 2012
    Date of Patent: November 4, 2014
    Assignee: Seiko Epson Corporation
    Inventors: Nobutaka Urano, Yoichi Momose
  • Patent number: 8879022
    Abstract: Disclosed is a liquid crystal display (LCD) device capable of stable support of components. The LCD device comprises an LCD panel; a main support for supporting edges of the LCD panel; a light guide plate disposed at a rear side of the LCD panel; and at least one first pad for preventing the movement of the light guide plate through contact with the light guide plate between the main support and the light guide plate, wherein at least one first pad supporting portion is formed at one surface of the main support being faced with the light guide plate. Accordingly, defects of the LCD device resulting from an external force such as impact or heat are minimized, and the LCD device has a firm and stable structure.
    Type: Grant
    Filed: December 31, 2007
    Date of Patent: November 4, 2014
    Assignee: LG Display Co., Ltd.
    Inventor: Guen-Taek Oh
  • Publication number: 20140320782
    Abstract: A transparent display device and a method of manufacturing the same are provided. The transparent display device includes: a display panel unit including: a first side configured to display an image, and a second side opposed to the first side, and a variable blocking film at the second side of the display panel unit, the variable blocking film including electrochromic core-shell nanoparticles.
    Type: Application
    Filed: November 21, 2013
    Publication date: October 30, 2014
    Applicant: LG Display Co., Ltd.
    Inventors: Seong-Yong UHM, Jin-Wuk KIM, Hwa-Youl LEE, June-Hwan KIM, Seok-Ho LEE
  • Patent number: 8870438
    Abstract: A surface light source includes a light source facing an end face of a lightguide plate, a rectangular-shaped frame surrounding an outer peripheral surface of the lightguide plate, and a reflecting sheet is disposed on a lower surface of the frame. The frame is formed such that an inside frame portion is made of a white resin and an outside frame portion is made of a black resin. The inside frame portion and the outside frame portion are integrally molded by a two-color molding method.
    Type: Grant
    Filed: August 25, 2011
    Date of Patent: October 28, 2014
    Assignee: OMRON Corporation
    Inventors: Kenji Ozawa, Kensuke Nambu, Yuichi Hiraki
  • Patent number: 8872992
    Abstract: An optical assembly includes a plurality of light sources emitting light in a first direction at a predetermined orientation angle, and a light guide panel having a light incident section and a light emitting section. The light incident section has a first surface to receive the light emitted from the light sources in the first direction and the light emitting section is to emit light received from the light incident section in a second direction. Also included is at least one cover having a first surface adjacent the light sources and a second surface adjacent at least one portion of the light emitting section.
    Type: Grant
    Filed: March 19, 2010
    Date of Patent: October 28, 2014
    Assignee: LG Innotek Co., Ltd.
    Inventors: Won Do Kee, Seung Se Kim, Sung Young Park
  • Patent number: 8872998
    Abstract: In an image display apparatus, a protruding portion is fixed to a chassis on a back side Z2 of a planar member and protrudes towards the planar member. The protruding portion has one or more first protruding members and one or more second protruding members and defines a small allowance region and a large allowance region for the planar member. In the small allowance region, an amount of displacement of the planar member towards the chassis side is regulated at most to a first predetermined value by the one or more first protruding members. In the large allowance region, an amount of displacement of the planar member towards the chassis side is regulated at most to a second predetermined value larger than the first predetermined value by the one or more second protruding member.
    Type: Grant
    Filed: March 8, 2011
    Date of Patent: October 28, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hiroshi Kamiyama, Tomohiko Okada, Tetsushi Ito, Takashi Nishida, Kenji Tanaka, Hirotoshi Iemura, Masakatsu Kusuda
  • Patent number: 8872999
    Abstract: A backlight assembly includes a light source, a light guide plate configured to receive and diffuse light emitted from the light source, and a mold frame including a central opening part configured to receive the light guide plate, an attachment opening part adjacent to the central opening part, the attachment opening part being configured to receive the light source, and a protrusion in the attachment opening part, the protrusion contacting the light source in the attachment opening.
    Type: Grant
    Filed: November 17, 2010
    Date of Patent: October 28, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Min-Seop Kim, Yun-Jae Kim, Hwan-Jin Kim
  • Patent number: 8870382
    Abstract: Disclosed is a method for reducing speckling in liquid crystal displays with coherent illumination. The method consists of providing a liquid-crystal display illuminated, e.g., with a laser light, in which the image is formed by passing the light through the light redirecting holographic elements arranged in a matrix pattern, then changing the direction of the beams emitted from the holographic elements by passing the emitted beams through the polarization-changing liquid crystal elements, and converting the image-carrying beams produced by the liquid crystal elements into a visible image by passing them to a viewer through a polarization analyzer.
    Type: Grant
    Filed: May 29, 2012
    Date of Patent: October 28, 2014
    Inventors: Vladimir Yankov, Alexander Goltsov, Igor Ivonin, Konstantin Kravtsov, Leonid Velikov
  • Publication number: 20140313455
    Abstract: A display device includes a light providing assembly to provide light, and a display panel to display an image using the light. The display panel includes a first substrate (FS), a second substrate (SS), a liquid crystal layer (LCL), a polarizing plate (PP), a first optical element (FOE), and a second optical element (SOE). The FS includes a pixel region (PR) and a non-PR (NPR) adjacent to the PR. The SS faces the FS. The LCL is disposed between the FS and SS. The PP is disposed between the FS and LCL, and includes grid polarizing layers. The FOE is disposed between the FS and PP, and is configured to redirect a fraction of the light propagating toward the NPR in a first direction. The SOE is disposed between the FOE and PP, and is configured to redirect the fraction of light propagating in the first direction toward the PR.
    Type: Application
    Filed: September 27, 2013
    Publication date: October 23, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Jung Gun NAM, Takakuwa ATSUSHI, GugRae JO, Dae-Young LEE, Daehwan JANG
  • Publication number: 20140313456
    Abstract: A first polarizing plate is disposed on a first main surface of a liquid crystal display panel. A second polarizing plate is disposed on a second main surface of the liquid crystal panel. The first polarizing plate includes a first polarizer and a first phase difference film laminated on a main surface on the liquid crystal display panel side in the first polarizer. The second polarizing plate includes a second polarizer and a transparent film laminated on a main surface on the side opposite to the liquid crystal display panel in the second polarizer.
    Type: Application
    Filed: April 4, 2014
    Publication date: October 23, 2014
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Toshiaki FUJINO, Yasunori NIWANO, Tetsuya SATAKE, Takanori OKUMURA, Yuji OGAWA
  • Patent number: 8866992
    Abstract: A mobile terminal including a wireless communication unit configured to wirelessly communicate with at least one other terminal; a display panel configured to display information; a plurality of light source parts spaced apart from each other and configured to output light; a light guide plate provided under the display panel and configured to guide the light output by the light source parts to the display panel; and a quantum dot filter part including a light entrance plane to which light is input and a light exit plane from which the light is wavelength-transformed and discharged. Further, at least one of the light entrance plane and the light exit plane of the quantum dot filter part includes a surface having a predetermined shape characteristic configured to increase an amount of the light input on and passed through the light entrance plane and to increase an amount of the light discharged from the light exit plane.
    Type: Grant
    Filed: June 20, 2012
    Date of Patent: October 21, 2014
    Assignee: LG Electronics Inc.
    Inventors: Jeongho Kim, Anna Yoo, Soowook Jang
  • Patent number: 8866993
    Abstract: In a liquid crystal display device having a display region defined by an area where a TFT substrate and an opposing substrate are superposed on each other, the present invention realizes a structure for avoiding breakage of a mechanically weak terminal section where the TFT substrate only extends. The terminal section where the TFT substrate only extends is mounted on a resin mold. Inside the resin mold, partition walls are formed to accommodate LEDs. By providing two partition walls in a pair at least in a center portion, an external pressure exerted on the center portion of the resin mold is distributed between the two partition walls and a maximum stress exerted on the terminal section of the TFT substrate is reduced.
    Type: Grant
    Filed: January 18, 2012
    Date of Patent: October 21, 2014
    Assignee: Japan Display Inc.
    Inventors: Tomio Yaguchi, Youhei Iwai, Hideyuki Ohsaka
  • Patent number: 8866994
    Abstract: A backlight device includes a frame with a first opening having a first side, a second side, a third side, and a fourth side, a planar light source which is disposed in the first opening of the frame, a plurality of optical sheet groups which are disposed on the planar light source and include a first optical sheet group and a second optical sheet group, and an adhesive layer which has a second opening formed along the first, second, third, and fourth sides of the frame. The first optical sheet group is fixed to the frame via the adhesive layer at the second, third, and fourth sides of the frame, and the second optical sheet group is fixed to the frame at the first side of the frame and is not fixed to the frame at the second, the third, and fourth sides of the frame.
    Type: Grant
    Filed: October 4, 2013
    Date of Patent: October 21, 2014
    Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.
    Inventor: Eiji Oohira
  • Patent number: 8866996
    Abstract: A liquid crystal display including: a liquid crystal display panel including a thin film transistor substrate and a liquid crystal layer disposed on the thin film transistor substrate; a heat generation unit that is configured to heat the liquid crystal layer; a resistance sensing unit that senses a change in a magnitude of resistance of the heat generation unit; a heat generation unit power controller that decreases a magnitude of power applied to the heat generation unit when the magnitude of resistance of the heat generation unit is equal to or greater than a reference magnitude of resistance; and a power supply unit that supplies power of a designated magnitude to the heat generation unit power controller.
    Type: Grant
    Filed: December 15, 2011
    Date of Patent: October 21, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jin Hyun Cho, Young Jai Bai
  • Publication number: 20140307202
    Abstract: A polarization plate is provided for use between a light source and a display panel, where the light source is configured to emit light having a plurality of planes of polarization and the display panel is configured to have a predetermined polarization axis. The plate includes a repolarization region and a prepolarization region. The repolarization region is configured to diffuse and to depolarize or rotate at least one plane of polarization of the light passing therethrough. The prepolarization region is disposed adjacent to and in contact with the repolarization region. The prepolarization region is configured to be substantially nonabsorbent, to allow passage of light having a plane of polarization that is substantially aligned with the predetermined polarization axis, and to prevent passage of light having a plane of polarization that is not substantially aligned with the predetermined polarization axis. In another embodiment, an interface is provided between the regions.
    Type: Application
    Filed: June 25, 2014
    Publication date: October 16, 2014
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventors: L. S. Lamberth, Jr., Ravindra R. Laddu, Brent D. Larson
  • Publication number: 20140307201
    Abstract: The present invention provides a backlight module including a waveguide, a backboard, and a light source, wherein the waveguide is disposed onto the backboard, and the light source is arranged adjacent to a light incident surface of the waveguide, wherein the backlight module includes at least a limiter securely disposed onto the backboard and abuts against to the light source so as to ensure a preset distance between the light source and the incident surface of the waveguide. According to the backlight module and the liquid crystal display, by providing the limiter of the backlight module to abut against the light source, the coupling distance between the light source and the incident surface of the waveguide can be effectively kept constant without being compromised to zero (0) as resulted from expansion under heat or moisture or the accuracy during installation. By this arrangement, the leakage of the backlight module can be readily prevented.
    Type: Application
    Filed: June 27, 2013
    Publication date: October 16, 2014
    Applicant: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventor: Quan Li
  • Patent number: 8860909
    Abstract: Disclosed is a transparent display device in which the total refection efficiency of a light guide plate supplying light to a liquid crystal display panel is enhanced thereby enhancing luminance in the image mode, and the transparent display device may include a liquid crystal display panel; a light source disposed at one side of a lower portion of the liquid crystal display panel to emit light; a first polarizing plate for polarizing the light emitted from the light source; a light guide plate disposed at a lower portion of the liquid crystal display panel to totally reflect the light polarized to an axis by the first polarizing plate to a lateral surface thereof and supply to the liquid crystal display panel, and transmit natural light entered from a lower direction therethrough; a plurality of air layers formed inside the light guide plate to totally reflect incident light; and a second polarizing plate disposed at an upper portion of the liquid crystal display panel to control the amount of polarized ligh
    Type: Grant
    Filed: December 13, 2010
    Date of Patent: October 14, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Eung-Do Kim, Se-Hong Park
  • Patent number: 8860906
    Abstract: Directional light guide plates, directional surface light sources, and three-dimensional (3D) image display apparatuses employing the directional surface light sources are provided. Each of the directional light guide plates includes a plurality of viewing zone separation units having a refractive index different from that of a light guide unit, for separating light into left and right viewing zones.
    Type: Grant
    Filed: October 31, 2011
    Date of Patent: October 14, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kyu-hwan Choi, Hong-seok Lee, Byung-hee Sohn, Yong-kweun Mun
  • Patent number: 8860653
    Abstract: A method for controlling characteristics of an electronic device based on ambient light levels is provided. In one embodiment, the method includes receiving light at an ambient light sensor of a device and measuring components, such as color components, of the visible light. The component levels may be weighted differently by factors that vary based on the intensity of the light received by the ambient light sensor. Also, the brightness level of a light source in the device or color output of the device may be controlled based on the weighted component levels. Additional methods, systems, and devices relating to control of an electronic device based on sensed ambient light are also disclosed.
    Type: Grant
    Filed: September 1, 2010
    Date of Patent: October 14, 2014
    Assignee: Apple Inc.
    Inventors: Peter H. Mahowald, Ulrich T. Barnhoefer
  • Patent number: 8854573
    Abstract: An electronic device including a display is provided. The display displays a received information content, and the information content has a horizontal direction. The display has a horizontal direction parallel to the information content's horizontal direction. The display includes a display panel, a backlight module and a first polarization unit. The backlight module is disposed at a side of the display panel, wherein the backlight module includes a horizontal prism sheet. The horizontal prism sheet includes a plurality of first prisms, wherein top angles of the first prisms are larger than or equal to 80 degrees and are smaller than 90 degrees. The display panel is located between the first polarization unit and the backlight module. A first angle between a transmission axis of the first polarization unit and the horizontal direction of the display is larger than 45 degrees and smaller than 135 degrees.
    Type: Grant
    Filed: December 14, 2012
    Date of Patent: October 7, 2014
    Assignee: Compal Electronics, Inc.
    Inventors: Tien-Hung Hou, Mei-Hsiung Tsai
  • Patent number: 8854570
    Abstract: The present invention discloses a light-emitting device of a liquid crystal display apparatus, which includes a light bar and a frame. The frame has a surface having a fixing bar protruded therefrom. An extension direction of the fixing bar is parallel with the surface of the frame. A longer side of a main body of the light bar is attached to the fixing bar. Two ends of the fixing bar respectively have a heat-conductive portion mounted thereon. An inner surface of the heat-conductive portion is perpendicular to a length direction of the main body of the light bar and attached to a shorter side of the main body of the light bar. The present invention further discloses a liquid crystal display apparatus.
    Type: Grant
    Filed: August 12, 2011
    Date of Patent: October 7, 2014
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventor: Gang Yu
  • Patent number: 8850714
    Abstract: A chromaticity correction device corrects chromaticity of a video signal displayed on a display panel of a display device to correspond to a change in a luminance value of the display panel. The chromaticity correction device includes a luminance detection unit which detects the luminance value, a backlight driving level detection unit which detects a backlight driving level, a temperature detection unit which detects an internal device temperature or an ambient temperature, a reference luminance value calculation unit which estimates a reference luminance value in a characteristic of an initial state, a chromaticity calculation unit which obtains a chromaticity change amount of white point chromaticity and estimated white point chromaticity that is an estimated value of current white point chromaticity, a chromaticity correction value calculation unit which obtains a chromaticity correction value and a chromaticity correction circuit which corrects the chromaticity of the video signal.
    Type: Grant
    Filed: September 30, 2011
    Date of Patent: October 7, 2014
    Assignee: NEC Display Solutions, Ltd.
    Inventor: Katsuyuki Matsui
  • Patent number: 8854803
    Abstract: A buffer assembly includes a buffer body and an adhesive layer on the buffer body. The buffer body includes a buffer portion and a mounting portion surrounding the buffer portion. The adhesive layer includes a first adhesive portion and a second adhesive portion surrounding the first adhesive portion. The first adhesive portion and the second adhesive portion respectively correspond to the buffer portion and the mounting portion. A first cutting line is disposed between the buffer portion and the mounting portion such that the mounting portion is separable from the buffer portion along the first cutting line. A second cutting line is disposed between the first adhesive portion and the second adhesive portion such that the second adhesive portion is separable from the first adhesive portion along the second cutting line. The second cutting line superposes the first cutting line.
    Type: Grant
    Filed: December 2, 2011
    Date of Patent: October 7, 2014
    Assignees: Fu Tai Hua Industry (Shenzhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.
    Inventors: Qun Huang, Che-Yu Chou, Tai-Shan Zhu, Ji-Ping Wu
  • Publication number: 20140293187
    Abstract: A liquid crystal display device includes a liquid crystal display panel and a backlight unit providing light to the liquid crystal display panel. The liquid crystal display panel includes a first substrate on which a thin film transistor is disposed, a second substrate facing the first substrate, a liquid crystal layer disposed between the first substrate and the second substrate, and a first polarizer disposed on the second substrate having a plurality of metal patterns spaced apart from each other by an interval. The backlight unit faces the second substrate.
    Type: Application
    Filed: August 2, 2013
    Publication date: October 2, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Jung-Gun NAM, Kyoung-Tai Han, Dae-Young Lee, Dae-Hwan Jang, Gug-Rae Jo, Atsushi Takakuwa
  • Publication number: 20140293188
    Abstract: An electronic device is provided with a display such as a liquid crystal display. The display includes a liquid crystal display module an array of display pixels. A backlight unit is used to provide backlight illumination to the display module. A shutter module having local dimming elements is used to locally control the amount of light that is transmitted through the display. The local dimming elements can be formed from liquid crystal display structures, polymer-dispersed liquid crystal display structures, photovoltaic material, electrowetting display structures, and/or other suitable light controlling elements. Each local dimming element controls the amount of light that is transmitted through an overlapping region of the array of display pixels. The local dimming elements may be arranged in a uniform array having rows and columns or may be shaped and sized differently and located in specific regions of the display.
    Type: Application
    Filed: April 1, 2013
    Publication date: October 2, 2014
    Inventors: Cheng Chen, Nicholas A. Rundle, Jun Qi, Christiaan A. Ligtenberg, Matthew Casebolt, Dinesh C. Mathew, Victor H. Yin
  • Patent number: 8847882
    Abstract: The present invention relates to an apparatus for recognizing the position of an indicating object. An apparatus for recognizing the position of an indicating object of the present invention comprises: first reflecting means installed along the left, right, and bottom edges of a screen so as to reflect a laser beam emitted from object-detecting means back to the object-detecting means; said object-detecting means, formed as a pair, for analyzing a change in the amount of light in the reflected laser beam over time, and detecting position coordinates of the indicating object on the planar surface of the screen; and fixing means including a housing and a fixing member fixedly installed on an upper portion of the screen and coupled to the housing so as to fix the housing to the upper portion of the screen, the fixing means being intended for facilitating the installation of the object-detecting means on the upper portion of the screen.
    Type: Grant
    Filed: November 2, 2010
    Date of Patent: September 30, 2014
    Assignee: Smart Sense Technology Co., Ltd
    Inventors: Seung-tae Jeong, Bong-hwan Kim
  • Patent number: 8848139
    Abstract: An optical member including: a Fresnel lens sheet for deflecting and emitting deflected light, A louver for restricting a direction of light rays, where the louver restricts the traveling direction of incident light from the deflecting element to a direction that is parallel to the optical path of the incident light, and emits the restricted light. The Fresnel lens sheet is disposed so that a machined surface thereof faces the louver.
    Type: Grant
    Filed: October 24, 2013
    Date of Patent: September 30, 2014
    Assignee: NLT Technologies, Ltd.
    Inventors: Shinya Niioka, Ken Sumiyoshi, Shin-Ichi Uehara, Masao Imai, Kenichi Takatori, Fujio Okumura
  • Patent number: 8848127
    Abstract: An embodiment of the invention provide a liquid crystal panel comprising a driving chip assembly comprising: a chip lead wiring and a chip repair line, which are overlapped but insulated from each other; an array substrate comprising an array substrate lead wiring and an array substrate repair line, which are overlapped but insulated from each other; wherein the driving chip assembly is mounted on the array substrate which is electrically connected with the corresponding chip lead wiring connection, and the two ends of the chip repair line is electrically connected with the corresponding two ends of the array substrate repair line respectively.
    Type: Grant
    Filed: March 24, 2011
    Date of Patent: September 30, 2014
    Assignee: Beijing Boe Optoelectronics Technology Co., Ltd.
    Inventors: Wei Qin, Zhilong Peng
  • Patent number: 8848138
    Abstract: Provided is a liquid crystal display device includes an optical switching member; a light guide plate made of a thermoplastic material, which includes at least one light introducing portion on at least one side surface thereof; and a light source disposed on the at least one side surface, in which: the at least one light introducing portion includes, in plan view of the light guide plate: a first portion extending from a light incident surface, which is an end surface of the at least one light introducing portion, while keeping a substantially constant width; and a second portion, which extends from the first portion and has a form which widens; and at least the second portion is connected to a front surface of the light guide plate through an inclined surface which is smoothly continuous with the front surface of the light guide plate.
    Type: Grant
    Filed: May 26, 2011
    Date of Patent: September 30, 2014
    Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Hiroshi Nakamoto, Mitsuhiro Sugiyama, Masahiro Ito
  • Patent number: 8848130
    Abstract: The described embodiments relate generally to computing devices including liquid crystal displays (LCDs) and more particularly to methods for attaching a backlight assembly to a cover glass layer while minimizing an amount of stress transferred through the cover glass layer to the LCD module. A continuous and compliant foam adhesive can be used to bond the cover glass layer to the backlight assembly. The compliant bond can absorb and distribute local stress concentrations caused by structural loads, mismatched surfaces and differing thermal expansion rates between various structures and cover glass layer. This can reduce stress concentrations in the cover glass layer that can lead to stress induced birefringence in the LCD cell. In another embodiment, a series of rigid plates can be bonded to the cover glass layer and attached to the backlight assembly. Point loads applied from the backlight assembly can be distributed over a larger area due to the resilience of the rigid plates.
    Type: Grant
    Filed: September 26, 2012
    Date of Patent: September 30, 2014
    Inventors: Dinesh C. Mathew, Edward J. Cooper, Brett W. Degner, Keith J. Hendren, Nicholas Alan Rundle
  • Patent number: 8842237
    Abstract: A liquid crystal display device includes a liquid crystal display panel, a first back light module (BLU), a polarizer, a second BLU and a pattern retarder. The first BLU is disposed below the liquid crystal display panel for emitting light. The polarizer is disposed on the first BLU, to convert the light into a first light. The second BLU is disposed between the liquid crystal display panel and the first BLU for emitting a second light. The pattern retarder is disposed between the liquid crystal display panel and the first BLU. The pattern retarder includes plural first and second polarizing regions with orthogonal polarization states, and the first and second polarizing regions are arranged in an interlaced order. Also, the polarization state of the first light is orthogonal to the polarization state of the second polarizing region.
    Type: Grant
    Filed: January 18, 2013
    Date of Patent: September 23, 2014
    Assignee: Innolux Corporation
    Inventor: Yen-Liang Chen
  • Patent number: 8842238
    Abstract: A backlight unit being scan-driven is discussed. The backlight unit according to an embodiment includes light sources configured to emit light, and a light guide plate disposed parallel to the light sources and configured to convert spotted lights entered from the light sources into two-dimensional light. The light guide plate includes a plurality of air barriers arranged at a fixed interval and configured to guide lights from the light sources in blocks with a width of the fixed interval.
    Type: Grant
    Filed: November 19, 2010
    Date of Patent: September 23, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Hee Kyung Lee, Byoung Ku Kim, Jun Ho Bae, Yong Ik Hwang