Edge Lit Type Light Guide Behind Liquid Crystal Patents (Class 349/65)
  • Patent number: 10895353
    Abstract: A lighting engine, system and method of fabrication are described. The system contains a flexible printed circuit (FPC) shaped as a loop. LEDs are mounted on the FPC to emit light toward a center of the loop. A light guide positioned in an interior of the loop receives light emitted by the LEDs through an edge of the light guide. The light guide has slots formed therein that receive locator pins to limit thermal displacement of the light guide towards the LEDs. Other apparatuses, systems, and methods are also disclosed.
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: January 19, 2021
    Assignee: Lumileds LLC
    Inventors: Frederic Stephane Diana, Seng-Hup Teoh, Michael Wasilko
  • Patent number: 10895769
    Abstract: A display device includes a display, a housing, a plurality of light sources, a plurality of diffusing lenses, a substrate, an attachment member, and a reflective sheet. The housing supports the display. The light sources are disposed on a rear side of the display device with respect to the display component. The diffusing lenses cover the light sources, respectively. The light sources are mounted to the substrate. The substrate is attached to the attachment member. The attachment member is disposed on the housing. The reflective sheet has a plurality of holes corresponding to the light sources, the reflective sheet being disposed between the attachment member and the diffusing lenses.
    Type: Grant
    Filed: October 16, 2019
    Date of Patent: January 19, 2021
    Assignee: FUNAI ELECTRIC CO., LTD.
    Inventors: Yasuyuki Fukumoto, Akihiro Fujikawa, Akira Yokawa
  • Patent number: 10884289
    Abstract: A backlight module includes a light-guiding plate, a plurality of reflection spots, and a light source. The reflection spots are disposed on a back surface of the light-guiding plate. Light emitted by the light source enters the light-guiding plate through a light input side surface of the light-guiding plate, and is reflected by the reflection spots to emit out of the light-guiding plate through a light output surface of the light-guiding plate. The back surface includes a central portion and a fringe portion. The fringe portion extends along an edge of the back surface. The distribution density of the reflection spots on the fringe portion gradually decreases in a direction from the central portion toward the fringe portion.
    Type: Grant
    Filed: November 27, 2019
    Date of Patent: January 5, 2021
    Assignee: Qisda Corporation
    Inventors: Wei-Jung Chang, Hsiao-Yun Chen
  • Patent number: 10883678
    Abstract: A minimally complex, low cost/economical luminaire that distributes point source light for general lighting applications, the luminaire having a substrate with a linear array of discrete light sources positioned to emit light into an air-filled cavity and a light redirecting assembly on the other side the air-filled cavity, the assembly comprising a clear, light transmissive rigid cover and a clear, light transmissive semi-rigid flexible film positioned between the cover and the substrate, wherein the film is non-adhesively secured within the luminaire and flexed to generally conform to the shape of the cover and wherein the surface of the film facing into the air-filled cavity comprises an array of optical relief structures extending into the air-filled cavity.
    Type: Grant
    Filed: May 15, 2020
    Date of Patent: January 5, 2021
    Assignee: ABL IP Holding LLC
    Inventors: John N. Magno, Eric W. Teather, Christopher C. Rich
  • Patent number: 10877204
    Abstract: An illumination device includes a light source row made up of multiple first light sources, each emitting light in the same direction and being aligned in a row with intervals maintained therebetween; a light guide member having a light-guide main portion in a plate shape including a light-incident surface which faces a first light-emitting portion and on which light from the first light-emitting portion is incident and a light-emitting surface from which light enters from the light-incident surface is externally emitted, and an extended portion in a plate shape thinner in thickness than the light-guide main portion and extending toward an outer side from part of the end surface of the light-guide main portion to cover the light source row from the front side; and multiple second light sources having a second light-emitting portion that emits light toward the extended portion and being disposed aligned in the row along with the light source row at both ends of the light source row to be covered by the extende
    Type: Grant
    Filed: June 15, 2018
    Date of Patent: December 29, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Nobuyuki Takahashi
  • Patent number: 10859864
    Abstract: The present invention provides a display device including: a first liquid crystal cell including a first electrode layer, a polymer dispersed liquid crystal layer, and a first array substrate, wherein the first array substrate includes a second electrode layer, the second electrode layer includes a plurality of first pixel electrodes, and a light source is disposed at a side of the first liquid crystal cell.
    Type: Grant
    Filed: April 24, 2019
    Date of Patent: December 8, 2020
    Inventors: Yong Yang, Xin Zhang, Guowei Zha, Guiyang Zhang
  • Patent number: 10853017
    Abstract: A display apparatus including a plurality of displays arranged adjacent to each other, and a connector coupled to adjacent ends of the plurality of displays to couple the plurality of displays to each other, wherein the connector electrically connects the plurality of displays.
    Type: Grant
    Filed: February 28, 2019
    Date of Patent: December 1, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jin Su Park, Chae Joo Son, Do Sung Jung, Sae Rom Hong, Min Hee Lee, Ji Hye Lim
  • Patent number: 10845637
    Abstract: According to one embodiment, a display device includes a display panel, a light emitting element, a light guide layer and a first optical layer. The display panel includes a first substrate, a second substrate opposed to the first substrate, and a polymer dispersed liquid crystal layer which is held between the first substrate and the second substrate and contains a polymer and a liquid crystal molecule. The light guide layer has a first surface opposed to the display panel, and an edge opposed to the light emitting element. The first optical layer is located between the display panel and the light guide layer. A refractive index of the first optical layer is lower than a refractive index of the light guide layer.
    Type: Grant
    Filed: August 3, 2018
    Date of Patent: November 24, 2020
    Assignee: Japan Display Inc.
    Inventors: Yudai Numata, Kentaro Okuyama
  • Patent number: 10838249
    Abstract: A backlight is located on an incident side of a liquid crystal cell with a space. A first polarizing plate between the liquid crystal cell and the backlight is spaced from the liquid crystal cell. A second polarizing plate is located on an outgoing side of the liquid crystal cell. A light guiding plate is located between the liquid crystal cell and the first polarizing plate with a space from the liquid crystal cell to transmit a part of light and to guide the light to enter the liquid crystal cell. The display unit and the emitting unit are separately provided. The polarizing axes of the first polarizing plate and the second polarizing plate extend in different directions. When linearly polarized light after passing through the first polarizing plate enters the second polarizing plate, the second polarizing plate shuts off the linearly polarized light.
    Type: Grant
    Filed: June 9, 2017
    Date of Patent: November 17, 2020
    Assignee: DENSO CORPORATION
    Inventor: Seigo Tane
  • Patent number: 10816837
    Abstract: A display device of the disclosure includes: a display panel; a decorative member that holds the display panel; and a light guide plate that has rigidity and includes an edge surface attached to the decorative member.
    Type: Grant
    Filed: July 6, 2015
    Date of Patent: October 27, 2020
    Assignee: Saturn Licensing LLC
    Inventors: Takeshi Yamamoto, Soya Araki, Takao Sumida, Tomoyuki Yoshimatsu
  • Patent number: 10809565
    Abstract: A backlight module includes: light sources; a light guide plate disposed at a side of the light sources, the light guide plate including a second light guide portion disposed adjacent to the light sources and a first light guide portion disposed on a side of the second light portion away from the light sources, a thickness of the second light guide portion being greater than a thickness of the first light guide portion; and a back plate including a first back plate portion disposed at a side of the light sources away from the light guide plate and a second back plate portion disposed at a side of the light guide plate which is opposite to a light exit side of the light guide plate.
    Type: Grant
    Filed: August 2, 2018
    Date of Patent: October 20, 2020
    Assignees: Chongqing BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Sen Tan, Sijun Lei, Liang Gao, Yansheng Sun, Hebing Ma, Wei Fu, Wencheng Luo, Qihai Du, Yuxu Geng, Qiangsheng Han, Song Liu
  • Patent number: 10809554
    Abstract: A display apparatus includes a display panel that displays an image, a light source that supplies light to the display panel, a middle mold positioned between the display panel and the light source, and a quantum dot sheet positioned between the display panel and the middle mold that converts a wavelength of light emitted from the light source, and the middle mold includes a color compensator having blue color that provides uniform white light to outside of the display panel.
    Type: Grant
    Filed: June 4, 2019
    Date of Patent: October 20, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yoon Ki Park, Nae Won Jang, Won Yeop Jang, Byoung Jin Cho
  • Patent number: 10802200
    Abstract: A backlight unit may include a light source, a light guide plate neighboring the light source, a low refractive index layer disposed on the light guide plate, a blocking layer disposed on the low refractive index layer, and a wavelength conversion layer disposed on the blocking layer and including quantum dots. A refractive index of the low refractive index layer may be less than a refractive index of the light guide plate.
    Type: Grant
    Filed: August 8, 2019
    Date of Patent: October 13, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Chang Ok Kim, Chul Min Bae, Ji Hye Han, Junghwan Yi, Shin Il Choi
  • Patent number: 10795207
    Abstract: An example of the present invention provides a quantum rod layer including: a photo-induced polymer including a base polymer aligned along a first direction and a photo-reactive group combined to the base polymer; and a quantum rod aligned along the first direction.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: October 6, 2020
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Seung-Ryull Park, Hyun-Jin Park, Han-Jin Ahn
  • Patent number: 10788618
    Abstract: The present disclosure relates to a backlight module as well as a display panel and an electronic device comprising the same. The backlight module includes: a light guide plate; a first low refractive plating layer; a diffusion plating layer; a high refractive plating layer; a second low refractive plating layer; a Bragg reflective plating layer; and a light source. Further, in the backlight module, refractive indexes of the first low refractive plating layer and the second low refractive plating layer are lower than that of the light guide plate, and a refractive index of the high refractive plating layer is higher than that of the light guide plate.
    Type: Grant
    Filed: September 21, 2017
    Date of Patent: September 29, 2020
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Xuerong Wang, Caizheng Zhang, Junjie Ma, Jianan Wang, Qingping Yin, Lu Yu
  • Patent number: 10782467
    Abstract: The present disclosure has disclosed a light guide device, comprising an optical waveguide layer (100), and a reflection layer (110) one surface of which is connected with the optical waveguide layer, said one surface including a plurality of protrusions (113), each protrusion including a first surface (114) forming a first angle (?1) with respect to a surface of the optical waveguide layer, and a first intersection line (116) between a plane in which the surface of the optical waveguide layer is located and a plane in which the first surface is located being perpendicular to a light guiding direction of the optical waveguide layer. The present disclosure has disclosed a manufacturing method of a light guide device as well as a backlight module and display device including the light guide device at the same time.
    Type: Grant
    Filed: September 18, 2017
    Date of Patent: September 22, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Xinli Ma
  • Patent number: 10750159
    Abstract: A three-dimensional (3D) image display apparatus includes a display panel configured to display a 3D image; a light guide panel disposed on a rear surface of the display panel to emit light to the display panel; a first light source configured to irradiate light toward the light guide panel; a second light source configured to irradiate light toward the light guide panel; and a controller configured to control the first light source and the second light source to emit light alternately, wherein the light guide panel includes a first pattern which responds to the first light source and does not respond to the second light source, and a second pattern which responds to the second light source and does not respond to the first light source.
    Type: Grant
    Filed: October 9, 2015
    Date of Patent: August 18, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seon-deok Hwang, Seung-jun Jeong, Kyung-hoon Cha, Farid Mukhtarov
  • Patent number: 10747053
    Abstract: The present disclosure provides a display device, including a light guide plate having a main body part including a first side and a second side opposite to each other and a light incident side connected to the first side and the second side and a first protrusion part and a second protrusion part disposed at the first side and the second side respectively, and a plurality of light sources. A length of the first protrusion part is greater than a length of the second protrusion part. The light sources are adjacent to the light incident side, and the distance between the light source closest to the first protrusion part and the first protrusion part is less than the distance between the light source closest to the second protrusion part and the second protrusion part in a first direction.
    Type: Grant
    Filed: October 28, 2018
    Date of Patent: August 18, 2020
    Assignee: InnoLux Corporation
    Inventor: Chung-Wen Yen
  • Patent number: 10732344
    Abstract: A light guide includes a light input surface, a first major surface orthogonal to the light input surface, a second major surface opposing the first major, a plurality of discrete light extraction features disposed on the second major surface and a plurality of closely packed prisms disposed along the second major surface. The plurality of discrete light extraction features separate the plurality of closely packed prisms from the second major surface. Each of the closely packed prisms include a first prism surface forming a first angle with the second surface in a range from 80 to 100 degrees or in a range from 85 to 95 degrees or in a range from 87 to 93 degrees.
    Type: Grant
    Filed: August 24, 2016
    Date of Patent: August 4, 2020
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Kenneth A. Epstein, John A. Wheatley, Tao Liu
  • Patent number: 10732343
    Abstract: An optical member includes a light guide plate, a wavelength conversion layer, and a reflective tape. The wavelength conversion layer is disposed on an upper surface of the light guide plate. The reflective tape includes a first side portion covering first side surfaces of the light guide plate and the wavelength conversion layer. The reflective tape includes a first surface and a second surface. The first surface is configured to reflect light of a first wavelength band and light of a second wavelength band different from the first wavelength band. The second surface is configured to absorb the light of the first wavelength band.
    Type: Grant
    Filed: April 3, 2019
    Date of Patent: August 4, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Do Hun Kim, Ji Eun Nam, Young Min Park, You Jin Seo, Hyeon Mi Lee, Hyeon Seon Jeong, Taek Sun Shin, Seong Yong Hwang
  • Patent number: 10718892
    Abstract: A backlight unit satisfies the relationship given by the following expression: S<2(A??3T), where A (mm) represents the length along which the light shielding member covers the light diffusion sheet before shrinkage, T (mm) represents the thickness of the prism sheet, and S (mm) represents the amount of shrinkage of an end on the frame side of the light diffusion sheet in the planar direction of the light diffusion sheet. The backlight unit also satisfies the relationship given by the following expression: E<D, where D (mm) represents the distance between the end on the frame side of the light diffusion sheet before expansion and a frame and E (mm) represents the amount of expansion of the end on the frame side of the light diffusion sheet in the planar direction of the light diffusion sheet.
    Type: Grant
    Filed: October 18, 2019
    Date of Patent: July 21, 2020
    Assignee: KEIWA Inc.
    Inventors: Yoshitada Namikawa, Hirohisa Dejima
  • Patent number: 10718893
    Abstract: A light guide plate (LGP) positioning structure, a backlight module and a display device are provided. The LGP positioning structure includes: a plurality of positioning members disposed between a first surface of a LGP and a back plate. The first surface is adjacent to an incident surface of the LGP. The surface reflectivity of the positioning members near the incident surface is lower than the surface reflectivity of the positioning members away from the incident surface.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: July 21, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yongda Ma, Jianbo Xian, Yong Qiao
  • Patent number: 10698220
    Abstract: A waveguide display is used for presenting media to a user. The waveguide display is part of a Near Eye Device (NED), and an output of the waveguide display is a light field directed to a user's eye that extends across the surface of an exit pupil. Light traveling in total internal reflection (TIR) is selectively interrupted through frustrated total internal reflection (FTIR). FTIR coupling between waveguides produces multiple expansions of an input light field. The coupling locations of FTIR are dynamic, allowing for adjustment of the location and size of the exit pupil.
    Type: Grant
    Filed: May 23, 2018
    Date of Patent: June 30, 2020
    Assignee: Facebook Technologies, LLC
    Inventors: Byron Taylor, Sharvil Shailesh Talati
  • Patent number: 10698260
    Abstract: A liquid crystal display device includes: a backlight unit including: a light-emitting diode (LED) assembly including a plurality of LEDs, a glass diffuser above the LEDs, and a reflector under the LEDs, a liquid crystal panel above the glass diffuser, a portion of a back edge thereof being attached to the glass diffuser by a first adhesive member having a first width, a main frame surrounding a side of the liquid crystal panel and the backlight unit, the main frame including: a vertical portion, and a guide bar, the guide bar protruding from the vertical portion, and a bottom frame including a lower surface under the backlight unit, wherein the glass diffuser is above the main frame, and wherein the main frame is attached to a portion of the glass diffuser by a second adhesive member having a second width greater than the first width.
    Type: Grant
    Filed: October 31, 2018
    Date of Patent: June 30, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: Ji Soo Kim, Jae Lyang Kim
  • Patent number: 10697176
    Abstract: A luminous false-wall device, comprising: a chassis constituted by at least one profile, the chassis comprising an upper part directed toward a panel to be covered, such as a wall or ceiling, and a lower part; a diffusing canvas fixed on the chassis and stretched on the lower part of the chassis; a light placed between the panel and the canvas configured to emit light in the direction of the canvas; wherein the chassis is provided with means of increasing the light intensity of the light.
    Type: Grant
    Filed: June 16, 2017
    Date of Patent: June 30, 2020
    Assignee: NORMALU
    Inventors: Edwin Kouijzer, Jean-Marc Scherrer
  • Patent number: 10678054
    Abstract: A display device includes a liquid crystal layer and a backlight. The liquid crystal layer includes a first liquid crystal portion including a first plurality of pixels, and a second liquid crystal portion including a second plurality of pixels. The backlight includes a first backlight unit corresponding to the first liquid crystal portion, and a second backlight unit corresponding to the second liquid crystal portion. Each backlight unit includes one or more light sources, and a light guide for guiding light generated by the one or more light sources to a respective liquid crystal portion.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: June 9, 2020
    Assignee: Facebook Technologies, LLC
    Inventors: Jianru Shi, Fenglin Peng
  • Patent number: 10663797
    Abstract: Provide are a composite optical sheet used for a liquid crystal display (LCD) device and a method of manufacturing the composite optical sheet. The LCD device includes: a liquid crystal panel; a surface light-emitting module; a base layer disposed between the liquid crystal panel and the surface light-emitting module; a diffusion pattern layer disposed on a surface of the base layer facing the surface light-emitting module and configured to diffuse light incident from the surface light-emitting module; a prism pattern layer disposed on a surface of the base layer facing the liquid crystal panel and including a plurality of first unit prisms; and a prism film adhered to the prism pattern layer and including a plurality of second unit prisms.
    Type: Grant
    Filed: December 10, 2015
    Date of Patent: May 26, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Katsutoshi Sasaki
  • Patent number: 10649405
    Abstract: Provided is a digital holographic imaging apparatus, comprising: an illumination portion (10) having an illumination light emission surface (32i) for emitting coherent light of a specific wavelength as illumination light toward an object (1) side relative to the illumination light emission surface (32i), and a reference light emission surface (32r) for emitting the coherent light, as reference light, in a direction opposite to the illumination light; and an image sensor (50) located on the reference light emission surface (32r) side of the illumination portion (10) and imaging an interference pattern between object light having been modulated by the object (1) and passed through the illumination portion (10) and the reference light of the illumination light, the image sensor (50) having a pixel array (51) comprising two-dimensionally aligned pixels.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: May 12, 2020
    Assignee: OLYMPUS CORPORATION
    Inventor: Satoshi Watanabe
  • Patent number: 10642443
    Abstract: A display panel is provided. The display panel comprises a display panel; and a light modulation substrate disposed opposite to the display panel. The light modulation substrate includes a base layer and a transparent dielectric layer covering the base layer. The base layer has a first surface facing the display panel and an opposing second surface, and the transparent dielectric layer is disposed on the first surface of the base layer. A plurality of reflective gratings are disposed on the base layer. The transparent dielectric layer has a first surface facing the base layer and an opposing second surface, and the second surface of the transparent dielectric layer is a transparent dielectric layer surface. The transparent dielectric layer has a refractive index of n, and n>1. Outgoing light of the display device converges to a plurality of light-emitting points outside the display device.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: May 5, 2020
    Assignee: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Fan Yang, Lei Niu, Jun Ma, Jialing Li
  • Patent number: 10616659
    Abstract: Disclosed is a television color cast adjustment method, including: dividing a television display screen into a plurality of areas according to a predetermined manner; determining an adjustment coefficient of red light and an adjustment coefficient of blue light in each area according to a position of each area relative to a light bar for the television display screen; adjusting initial image in each area according to the adjustment coefficients of red light and blue light thereof, and displaying the adjusted image in each area on the television display screen. Disclosed is also a television color cast adjustment apparatus. The present disclosure may solve the problem that the color cast appears on television display screens which is caused by the glass light guide plate, thus the viewing effect of TVs is improved.
    Type: Grant
    Filed: December 27, 2016
    Date of Patent: April 7, 2020
    Assignee: SHENZHEN TCL NEW TECHNOLOGY CO., LTD.
    Inventors: Shubiao Liu, Jianyuan Lin, Honglei Ji, Dongcan Zhang, Erchao Yang, Jianshun Huang, Chonghui Luo
  • Patent number: 10613270
    Abstract: Disclosed is a display apparatus having a liquid crystal panel to display images; a light source to supply light to the liquid crystal panel; and a printed circuit board having a light source embedding unit in which the light source is embedded, and a connector mounting unit at which a connector configured to connect to an outside circuit is mounted. The printed circuit board is bent such that the connector mounting unit may be positioned lower than or offset from the light source embedding unit. The printed circuit board may be bent such that the connector may not be protruded further upward than the height of an upper surface of the light source embedding unit, and thus the thickness of the display apparatus may be improved.
    Type: Grant
    Filed: July 12, 2016
    Date of Patent: April 7, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jong Pil Jeon, Kye Hoon Lee, Joon Seok Ahn
  • Patent number: 10606349
    Abstract: A backlight device includes a first surface and a second surface that is opposite to the first surface. The backlight device is configured to emit light in a first optical band through the second surface toward a display panel of a head-mounted display (HMD). The display panel is configured to convert the light from the backlight device to image light. The backlight device is transparent to light in a second optical band that is different than the first optical band. An eye tracking system illuminates an eyebox with light in the second optical band. A camera assembly positioned adjacent to the first surface of the backlight device. The camera assembly is configured to capture images of the eye in the second optical band through the backlight device, the display panel. The eye tracking system determines eye tracking information based at least in part on the captured images.
    Type: Grant
    Filed: June 22, 2018
    Date of Patent: March 31, 2020
    Assignee: Facebook Technologies, LLC
    Inventors: Andrew John Ouderkirk, Jacques Gollier, Robin Sharma, Yusufu Njoni Bamaxam Sulai, Brian Wheelwright, Ying Geng, Alexander Sohn, Abbas Mehdi Kazmi
  • Patent number: 10606118
    Abstract: A display apparatus and a method of controlling the same are disclosed. The display apparatus includes: a light source configured to emit light having a wavelength less than or equal to a predetermined level; a waveguide plate having a slope pattern that allows the light emitted from the light source to be output to a left side or a right side about a vertical direction of an optical axis of the light source; and a display panel comprising a plurality of pixels, each of the plurality of pixels comprising a white sub pixel configured to transmit the light output from the waveguide plate.
    Type: Grant
    Filed: September 21, 2017
    Date of Patent: March 31, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sang Hyun Sohn, Sang Yeon Shin
  • Patent number: 10600373
    Abstract: A display device includes: a side-lighting backlight source, a display panel, and a light controlling component; the side-lighting backlight source comprises a light guide plate and a plurality of light emitting devices; the light guide plate includes a plurality of first regions and a brightness of a light emitting face of each of the first regions is controllable by at least one of the light emitting devices; the light controlling component includes a plurality of second regions configured such that one of the first regions covers at least one of the second regions; the brightness of the light emitting face of each of the first regions and a light transmittance of each of the second regions are controlled according to the contrast of the image to be displayed by a corresponding region of the liquid crystal display panel.
    Type: Grant
    Filed: November 16, 2017
    Date of Patent: March 24, 2020
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Xibin Shao, Zhanchang Bu, Ming Chen, Jieqiong Wang, Junjie Guo, Cuilan Huang, Dong Liang, Bo Feng, Wenjia Sun
  • Patent number: 10593731
    Abstract: The present disclosure relates to a display device. A downward-bending portion is formed on an end of an inner plate arranged on the inner surface of a back cover, which is a back support structure of the display device, such that the outer surface of the downward-bending portion contacts the inner surface of the back cover, thereby improving the rigidity and heat-radiating performance of the inner plate, and guaranteeing that the elastic force from the downward-bending portion prevents the display panel from being damaged by cracks. Furthermore, an inward-bending portion is formed on the front end of the vertical extension portion of the back cover, thereby improving the rigidity of the back cover, and guaranteeing that elastic deformation of the inward-bending portion protects the display device from lateral impacts.
    Type: Grant
    Filed: May 30, 2017
    Date of Patent: March 17, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: Donghoon Kim, Choonghyoun Choi, Hwanseong Park
  • Patent number: 10591768
    Abstract: A polarization layer including a wire grid layer including a metal wire; and a polarization layer on the wire grid layer and a host and a dichroic dye, wherein the host is one of a reactive mesogen and a liquid crystal polymer, and a liquid crystal display device including the polarization layer are provided.
    Type: Grant
    Filed: April 19, 2018
    Date of Patent: March 17, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: Sang-Soon Yoon, Soo-In Jo
  • Patent number: 10585227
    Abstract: A lighting device includes a light guide plate and a light source. The light guide plate includes a plate-like member. The light source is arranged so as to oppose an end surface of the light guide plate and emits light to the end surface. The light guide plate has a light incidence surface, an opposite surface of incidence, and a through-hole. In a straight traveling direction of light traveling straight inside the light guide plate from the light incidence surface to the opposite surface of incidence along an optical axis direction of the light, a region on the opposite surface of incidence side with respect to the through-hole is a shielded region where the light traveling straight along the optical axis direction is interrupted by the through-hole. Stepwise step parts that emit light from the light source to the shielded region side are provided adjacent to the shielded region.
    Type: Grant
    Filed: January 3, 2019
    Date of Patent: March 10, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Akira Kawano, Tomohiro Morita
  • Patent number: 10586421
    Abstract: A light guide plate presents a plurality of patterns via prisms illuminated by light sources aligned along one sidewall of the light guide plate. Each light source corresponds to a different pattern. A storage unit stores lighting sequence information and a controller controls the turning on and off of the plurality of light sources in accordance with the lighting sequence information, thereby illuminating the patterns. Visible light emitted from the light sources to enters the light guide plate via an incidence surface. The prisms making up the patterns reflect only the visible light emitted from a light source corresponding to a particular pattern.
    Type: Grant
    Filed: February 14, 2018
    Date of Patent: March 10, 2020
    Assignee: OMRON Corporation
    Inventors: Junya Fujita, Yoshihiko Takagi, Jun Kishimoto, Masaaki Hiramatsu
  • Patent number: 10585231
    Abstract: A directional backlight unit and an image display apparatus including the directional backlight unit are provided. The directional backlight unit includes at least one light source and a light guide plate that guides light emitted by the light source. An interval between grating patterns formed on the light guide plate satisfies at least one condition of a first range and a second range in order to minimize a spreading of light caused by the grating patterns.
    Type: Grant
    Filed: July 21, 2017
    Date of Patent: March 10, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyunjoon Kim, Bongsu Shin, Dongouk Kim, Joonyong Park, Jihyun Bae, Dongsik Shim, Sunghoon Lee, Jaeseung Chung, Seokho Song
  • Patent number: 10578909
    Abstract: A display apparatus including a dichroic filter is provided. The display apparatus includes a display panel including a liquid crystal layer and a quantum dot color filter disposed on the liquid crystal layer; a light source configured to emit light; a light guide plate configured to guide the light emitted from the light source towards the display panel; and a dichroic filter provided on a first side the light guide plate that is opposite to a second side of the light guide plate on which the display panel is provided, the dichroic filter being configured to concentrate the light emitted from the light source.
    Type: Grant
    Filed: September 22, 2017
    Date of Patent: March 3, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Kye Hoon Lee
  • Patent number: 10582192
    Abstract: A display apparatus, and a light guide plate (LGP) of the display apparatus are provided. The LGP may include a first light guide segment and a second light guide segment that are alternately arranged in a first direction. The first light guide segment and the second light guide segment may be separated from each other by a light barrier. Light guided and output in the LGP may be diffused in one direction by an anisotropic diffuser. The first light guide segment may be configured to guide light from a first light source used to generate a two-dimensional (2D) image. The second light guide segment may be configured to guide light incident from a second light source used to generate a three-dimensional image.
    Type: Grant
    Filed: November 13, 2015
    Date of Patent: March 3, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jinho Lee, Dong Kyung Nam, Kyuhwan Choi, Yoonsun Choi
  • Patent number: 10571743
    Abstract: A display may have a backlight unit that provides backlight illumination. The backlight unit may include a light guide that distributes light through the display. Light-emitting diodes may emit light into the light guide. A reflector that is overlapped by the light guide may help reflect light upwards through an array of pixels. The backlight unit may have a chassis that receives the reflector, light guide, light-emitting diodes, and optical films such as diffusers and prism films. Optical and mechanical features in the backlight unit may enhance color and intensity uniformity for the backlight illumination and may help enhance durability.
    Type: Grant
    Filed: August 28, 2017
    Date of Patent: February 25, 2020
    Assignee: Apple Inc.
    Inventors: Byungsoo Ko, Daming Xu, Heesang Suh, Michael Tom, Shin-Ying Lu, Thomas Mueller, Wenyong Zhu, Victor H. Yin, Mookyung Son
  • Patent number: 10562454
    Abstract: An electronic mirror device is attached to a vehicle interior and is used for rearward visual recognition. The electronic mirror device includes an optical member that reflects incident light from a front surface side and transmits incident light from a rear surface side, and an liquid crystal display that includes a liquid crystal panel disposed on the rear surface side of the optical member and a backlight that irradiates the liquid crystal panel with light, and displays an image of a rear view of the vehicle. A peak angle of the backlight is directed downward with respect to a front direction of the liquid crystal panel.
    Type: Grant
    Filed: July 25, 2016
    Date of Patent: February 18, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventor: Toshiharu Ooishi
  • Patent number: 10564341
    Abstract: A light guide assembly includes a metal material printed circuit board. A light emitting diode is mounted on and extends away from a first face of the printed circuit board. A light guide molded from a light transmissive polymeric material is positioned proximate to the light emitting diode and is at least partially received in a concomitantly shaped through bore pre-formed in the printed circuit board. The light guide includes an extended feature co-molded from the same material as the light guide and extending away from the first face of the printed circuit board in an installed position of the light guide. The extended feature includes a first extended feature having a first length and a second extended feature having a second length, the second length greater than the first length.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: February 18, 2020
    Assignee: DURA OPERATING, LLC
    Inventor: Ron G. Gipson
  • Patent number: 10551030
    Abstract: Disclosed is a display device that can uniformly transmit light emitted from a light source to the entire display panel without using a light guide plate. The display device includes a display panel, a backlight assembly supplying light to the display panel, and a lower cover receiving the backlight assembly. The backlight assembly includes a light source, a circuit board mounted with the light source, and a reflection cover coupled to the circuit board to reflect light emitted from the light source and formed of a bendable plate type member.
    Type: Grant
    Filed: August 9, 2017
    Date of Patent: February 4, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kyung-Min Kim, Sung-Kyu Shim, Yong-Hoon Kwon, Do Hun Kim, Dong Hyeon Lee, Seung Hwan Chung, Seung-Hwa Ha, Se Ki Park, Seong-Yong Hwang, You Ra Kim
  • Patent number: 10545366
    Abstract: The embodiments of the present invention provide an optical modulator, a backlight module and a display device. The optical modulator includes a first level modulation unit, a second level modulation unit and a third level modulation unit arranged in sequence. The first level modulation unit is a converging element for converging a light beam emitted from a light source. The second level modulation unit is a collimating element for converting the light beam from the first level modulation unit into a collimated light beam. The third level modulation unit is a redirecting element for converting the collimated light beam from the second level modulation unit into a vertically emitted light beam.
    Type: Grant
    Filed: November 11, 2016
    Date of Patent: January 28, 2020
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Qian Wang, Xue Dong, Xiaochuan Chen, Wenqing Zhao, Jian Gao, Pengcheng Lu, Ming Yang
  • Patent number: 10543777
    Abstract: An apparatus, according to an exemplary aspect of the present disclosure includes, among other things, a handle movable relative to a vehicle closure panel between an active mode and a stowed mode, and an illumination source incorporated into the handle. The illumination source illuminates the handle when in the active mode and illuminates a cargo area associated with the vehicle closure panel when in the stowed mode with the closure panel open. A method according to an exemplary aspect of the present disclosure includes, among other things, moving the handle relative to the vehicle closure panel between the active and stowed modes, illuminating the handle when in the active mode, and illuminating the cargo area when in the stowed mode.
    Type: Grant
    Filed: June 27, 2017
    Date of Patent: January 28, 2020
    Assignee: Ford Global Technologies, LLC
    Inventors: David Brian Glickman, Paul Kenneth Dellock, Stuart C. Salter, Jim J. Surman
  • Patent number: 10545377
    Abstract: According to an aspect, a display apparatus includes: a first light-transmissive substrate; a second light-transmissive substrate arranged to face the first light-transmissive substrate; a liquid crystal layer including polymer dispersed liquid crystals sealed between the first light-transmissive substrate and the second light-transmissive substrate; at least one light-emitting device arranged to face at least one of a side surface of the first light-transmissive substrate or a side surface of the second light-transmissive substrate; and at least one reflector arranged on at least one of a side surface of the first light-transmissive substrate or a side surface of the second light-transmissive substrate, the side surface of the first or second light-transmissive substrate being on an opposite side of the side surface of the first or second light-transmissive substrate to which the at least one light-emitting device faces, and configured to reflect light at the side surface on the opposite side.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: January 28, 2020
    Assignee: Japan Display Inc.
    Inventors: Manabu Mizuno, Kentaro Okuyama, Hiroshi Inamura, Hiroki Sugiyama
  • Patent number: 10545282
    Abstract: A display includes a display panel for displaying an image; a backlight including a light guide plate disposed behind the display panel for outputting light to the display panel, and a light source that irradiates the light to a first side surface of the light guide plate; and a holder for supporting the display panel and the light guide plate and to have a concave portion that exposes at least a portion of a second side surface of the light guide plate positioned to be opposite to the first side surface of the light guide plate.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: January 28, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyung-ki Kim, Dae-young Kim, Yong-sung Yoo, Kil-hong Lee, Duk-jin Jeon, Tae-hee Jeon
  • Patent number: 10520661
    Abstract: A backlight unit includes a light source generating light, a light guide plate guiding the light in an upper direction, and an optical member disposed on the light guide plate to condense the light provided from the light guide plate in the upper direction. A top surface of the light guide plate includes a plurality of circular areas and a peripheral area around the circular areas. Each of the circular areas includes a central circular area and a ring area surrounding the central circular area. The optical member includes a first insulating layer disposed on the light guide plate and spaced apart from the light guide plate by predetermined distances in the ring areas and the peripheral area to define a plurality of cavities, and a second insulating layer disposed on the first insulating layer.
    Type: Grant
    Filed: June 22, 2017
    Date of Patent: December 31, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kwangsoo Bae, Donchan Cho, Pilsook Kwon, Jungsuk Bang, Minjeong Oh, Haeju Yun