With Integral Optical Element For Guiding Or Distributing Light From The Light Source Patents (Class 349/62)
  • Patent number: 10386561
    Abstract: A display device including a backlight unit and a display panel disposed on the backlight unit. The backlight unit includes a light guide plate, a wavelength conversion layer, and a cover member. The light source unit is disposed adjacent to a surface of the light guide plate. The wavelength conversion layer is disposed between the light source unit and the light guide plate, and contacts the surface of the light guide plate. The cover member is disposed between the light source unit and the light guide plate, and seals the wavelength conversion layer.
    Type: Grant
    Filed: May 5, 2016
    Date of Patent: August 20, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Chan-jae Park, Seunghwan Baek, Sangduk Lee
  • Patent number: 10386024
    Abstract: A wavelength conversion member includes: a first wavelength converter containing a first wavelength converting material; a second wavelength converter containing a second wavelength converting material different from the first wavelength converting material; a first container member providing a space for accommodating the first wavelength converter; and a second container member facing the first container member and providing a space for accommodating the second wavelength converter. The first container member and the second container member may be at least partially fusion-bonded with each other.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: August 20, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Si Joon Song, Yong Hoon Kwon, Won Jin Kim, Woo Suk Seo, Young Hye Son, Kwang Wook Choi
  • Patent number: 10379280
    Abstract: A directional backlight unit and a three-dimensional (3D) image display device including the directional backlight unit are provided. The directional backlight unit includes: a light guide plate, a light source configured to irradiate an incident surface of the light guide plate with a plurality of color lights, and a grating that includes a sub-grating configured to react to all of the plurality of color lights. The directional backlight unit may further include a color filter that corresponds to a plurality of color lights emitted from each sub-grating.
    Type: Grant
    Filed: January 24, 2017
    Date of Patent: August 13, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jaeseung Chung, Bongsu Shin, Joonyong Park, Sunghoon Lee, Dongouk Kim, Hyunjoon Kim, Jihyun Bae, Dongsik Shim
  • Patent number: 10371880
    Abstract: A display device includes a backlight unit and a display panel disposed on the backlight unit. The backlight unit includes a light source unit and an optical unit disposed between the light source unit and the display panel. The optical unit includes an alignment layer, quantum rods disposed on the alignment layer, and an accommodation part configured to accommodate the alignment layer and the quantum rods.
    Type: Grant
    Filed: March 20, 2017
    Date of Patent: August 6, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Chan-jae Park, Taeho Lee, Hyun-hwa Song, Seunghwan Baek
  • Patent number: 10359555
    Abstract: A lighting system is disclosed. The lighting system comprises at least one light source comprising a light emitting diode (LED) and one or more phosphors optically coupled to the LED to convert at least a portion of original light emitted by the LED to provide a modified LED light having a first predetermined spectral output, and an optical material that is optically coupled to at least a portion of a surface of a light guide plate and optically coupled to receive at least a portion of the modified LED light and to convert at least a portion of the modified LED light to at least one predetermined wavelength to provide modified light having a second predetermined spectral output, wherein the optical material comprises one or more types of quantum confined semiconductor nanoparticle. A device including a lighting system is also disclosed.
    Type: Grant
    Filed: April 9, 2018
    Date of Patent: July 23, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seth Coe-Sullivan, John R. Linton, Daniel Cohen, John E. Ritter
  • Patent number: 10353130
    Abstract: An apparatus and method of delivering a precisely sized, homogeneous field of light within an optical system. The apparatus operates equally well over UV, visible, and NIR wavelengths, over a wide range of input beam divergence and regardless of heterogeneity. A tapered or contoured homogenizing rod that creates an evenly distributed illumination at a target area of specific size.
    Type: Grant
    Filed: December 8, 2015
    Date of Patent: July 16, 2019
    Assignee: Cellomics, Inc.
    Inventors: Dirk John Vandenberg, Monica Jo Tomaszewski, Keith Rao Heffley, Steven Roland Auger
  • Patent number: 10353242
    Abstract: A display device includes a lower cover; a circuit substrate disposed on the lower cover; a plurality of light sources disposed on the circuit substrate; a reflection layer disposed on the circuit substrate; a light regulator disposed at an edge of the reflection layer at an angle with respect to the reflection layer; and an optical sheet disposed on the light sources. Further, the light regulator includes absorber portions and reflector portions located between the absorber portions, the absorber portion is located in a portion of the light regulator corresponding to an outermost light source, and the reflector portion is located in a portion of the light regulator corresponding to an inner light source inwardly located than the outermost light source.
    Type: Grant
    Filed: February 19, 2019
    Date of Patent: July 16, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Yongjin Kim, Munheon Hong, Chilkeun Park, Sangcheon Kim, Mangeun Kim
  • Patent number: 10345635
    Abstract: There are provided a light control device, a method for manufacturing the light control device, and a display device comprising the light control device. The light control device includes a first substrate and a second substrate facing each other, and a plurality of liquid crystal units between the first substrate and the second substrate, and the plurality of liquid crystal units includes a first liquid crystal unit including a droplet including a first liquid crystal and a polymer and a second liquid crystal unit which is disposed on or under the first liquid crystal unit and configured as a polymer networked liquid crystal (PNLC) including a second liquid crystal, a coloring member, and a network.
    Type: Grant
    Filed: September 15, 2015
    Date of Patent: July 9, 2019
    Assignee: LG Display Co., Ltd.
    Inventors: Moon Sun Lee, Ji Young Ahn, Pu Reum Kim, Ki Han Kim
  • Patent number: 10345606
    Abstract: A projection system for generating an image with three primary colors, including a first and second blue laser beam, a wavelength conversion element for converting the second blue beam into a converted beam having a waveband including at least the second and third wavebands, a beam combiner for combining the first beam and the converted beam, which combination results in a white beam, a notch filter placed in the optical path of the white beam to form a modified white beam including at least the first, second and third wavebands provided to an imaging module, where a static waveband reduction filter is further provided for changing the wavelength of transmitted second waveband of the white beam, such as to adjust a projector white point shift.
    Type: Grant
    Filed: February 4, 2016
    Date of Patent: July 9, 2019
    Assignee: BARCO VISUAL (BEIJING) ELECTRONICS COMPANY LIMITED
    Inventors: Nico Gerard Coulier, Xiao Yun Wang, Allel Chedad
  • Patent number: 10337829
    Abstract: A battlefield illumination module having a light source for a handgun, a handgun with an appropriate battlefield illumination module and a holster for accommodating an appropriate handgun, wherein the light source includes a primary light source which is designed to be extendable from a rest position to a working position.
    Type: Grant
    Filed: August 4, 2015
    Date of Patent: July 2, 2019
    Inventor: Peter Spielberger
  • Patent number: 10317732
    Abstract: A display apparatus includes a plurality of light sources that are arranged in several rows at different intervals so that light emitted from the plurality of light sources may reach all regions of a display panel uniformly. Accordingly, a uniform dispersion of the light incident on the display panel may be achieved. Furthermore, distribution of light generated from the plurality of light sources on the display panel may be facilitated through a reflecting unit without the use of a light-guide plate or the like.
    Type: Grant
    Filed: November 3, 2016
    Date of Patent: June 11, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Dae Young Kim, Jong Bin Kim, Hyung Ki Kim, Young Min Lee, Young-Wook Jung, Jae Hak Cho, Yong Dok Cha
  • Patent number: 10319745
    Abstract: A display panel comprises a substrate, a gate line, a data line insulated from the gate line, a thin film transistor electrically connected to the gate line and the data line, wherein the thin film transistor comprises a gate electrode group formed on the substrate, a gate insulating film formed on the gate electrode group, an active layer formed on the gate insulating film to at least partially overlap the gate electrode group and a source electrode and a drain electrode formed on the active layer so as to be spaced apart from each other, wherein the gate electrode group includes a first gate electrode formed on the substrate, a second gate electrode formed on the first gate electrode, and an insulating layer between the first gate electrode and the second gate electrode, and wherein the first gate electrode has reflectivity higher than that of the second gate electrode.
    Type: Grant
    Filed: July 30, 2015
    Date of Patent: June 11, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Dae Young Lee, Byung Du Ahn, Jung Gun Nam, Gug Rae Jo
  • Patent number: 10317720
    Abstract: There are provided a light control apparatus, a method for manufacturing the light control apparatus, and a display apparatus including the light control apparatus. The light control apparatus includes a first substrate and a second substrate facing each other, and a plurality of liquid crystal units between the first substrate and the second substrate, and the plurality of liquid crystal units includes a first liquid crystal unit having a droplet including a liquid crystal and a polymer and configured as a polymer dispersed liquid crystal (PDLC) and a second liquid crystal unit which is disposed on or under the first liquid crystal unit and configured as a guest-host liquid crystal (GHLC) including a liquid crystal and a coloring member.
    Type: Grant
    Filed: September 4, 2015
    Date of Patent: June 11, 2019
    Assignee: LG Display Co., Ltd.
    Inventors: Moon Sun Lee, Ji Young Ahn, Pu Reum Kim, Ki Han Kim
  • Patent number: 10317609
    Abstract: A display device includes a display panel, a light source and an optical component which receives light from the light source, outputs the provided light toward the display panel, and includes a light guiding film which guides the light toward the display panel, an optical sheet which is coupled to the light guiding film, and the optical sheet includes a base film and optical patterns disposed between the base film and the light guiding film to adjust the traveling direction of the light, and a reinforcing part filled between the base film and the light guiding film corresponding to a periphery of the optical component.
    Type: Grant
    Filed: November 9, 2016
    Date of Patent: June 11, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kang-woo Lee, Sunhee Oh, Yongkyu Kang, Hyunwoo Lee
  • Patent number: 10310162
    Abstract: A display device includes a display panel, a light source, and an optical component including a light guide film and an optical sheet. The optical sheet is coupled to the light guide film to control a path of a light emitted from the light guide film. The optical sheet includes a base film, main optical patterns, and sub-optical patterns. The main optical patterns are disposed between the base film and the light guide film and coupled to the base film and the light guide film. Each of the main optical patterns includes a side surface inclined with respect to the light guide film. The sub-optical patterns are disposed between the base film and the light guide film, coupled to the base film, and spaced apart from the light guide film. Each of the sub-optical patterns has a side surface inclined with respect to the light guide film.
    Type: Grant
    Filed: November 28, 2016
    Date of Patent: June 4, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hyunwoo Lee, Yongkyu Kang, Sunhee Oh, Kang-woo Lee
  • Patent number: 10310163
    Abstract: A display panel and a display device are disclosed. The display panel comprises: a display substrate, an optical substrate, a light guide plate and a first frame; wherein: the optical substrate is arranged between the display substrate and the light guide plate, and the first frame is arranged on the same side edge of the display substrate, the optical substrate and the light guide plate; the light guide plate comprises a first portion and a second portion, wherein the second portion is formed by the first portion extending to the first frame from a side close the first frame, and the distance between the second portion and the first frame is smaller than the thickness of the light guide plate.
    Type: Grant
    Filed: May 31, 2016
    Date of Patent: June 4, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BOE OPTICAL SCIENCE AND TECHONOLOGY CO., LTD.
    Inventors: Tao Wang, Chunming Wu
  • Patent number: 10310166
    Abstract: According to one embodiment, a display device includes a display panel, a light source, a lightguide, and reflective elements. The lightguide includes a first end facing the light source, a first surface opposed to the display panel, and a second surface. The reflective elements are disposed inside the lightguide, the elements configured to reflect light passing through the first end to spread in the lightguide and to transmit the light through the first surface. Reflective elements are arranged to be apart from the first or second surface with a certain distance and has a reflective surface facing the first surface and projects toward the second surface, the reflective surface is inclined such that the light from the first end can be irradiated to the first surface.
    Type: Grant
    Filed: April 7, 2016
    Date of Patent: June 4, 2019
    Assignee: Japan Display Inc.
    Inventors: Toshinori Uehara, Hayato Kurasawa, Masashi Mitsui
  • Patent number: 10288932
    Abstract: A display device includes a display panel having a first surface with a first side, a second surface parallel and opposite to the first surface and having a second side opposite to the first side, and an end surface connecting the first side and the second side, a first polarizer disposed on the first surface, and a second polarizer disposed on the second surface. The first polarizer and the second polarizer respectively protrude from the first side and the second side and are bent oppositely to form a first bent portion and a second bent portion; and the first bent portion and the second bent portion at least partially overlap, and the overlapping portion at least partially covers the end surface.
    Type: Grant
    Filed: April 3, 2018
    Date of Patent: May 14, 2019
    Assignee: AU OPTRONICS CORPORATION
    Inventors: Wei-Shyang Wang, Iou-Jou Wu, Yu-Lin Huang
  • Patent number: 10274669
    Abstract: The present invention disclosed a flat lamp, comprising a light guide layer, a reflective layer, a diffusion layer, a buffer layer, and a backplane, the light guide layer has two opposite faces including a back face and a light emitting face, the reflective layer is located on the back face of the light guide layer, the diffusion layer is located on the light emitting face of the light guide layer, the buffer layer is located between the backplane and the reflective layer, and several light guide points are provided between the reflective layer and the light guide layer, the flat lamp further comprises a light source and an outer frame, with incident points being located on a lateral side of the light guide layer, the stacked structure is in the shape of a flat plate.
    Type: Grant
    Filed: March 30, 2018
    Date of Patent: April 30, 2019
    Assignee: KUNSHAN CHENGTAI ELECTRIC CO., LTD
    Inventor: Yulin Sheng
  • Patent number: 10267978
    Abstract: A backlight module including a back plate and a light guide plate structure and a light source assembly disposed on the back plate, wherein the light guide plate structure is mainly formed by splicing a plurality of light guide plate blocks, each of the plurality of light guide plate blocks includes a splicing end surface and at least one incident light end surface, and the light source assembly is disposed on at least one incident light end surface of the light guide plate blocks. Additionally, a liquid crystal display including the above backlight module is disclosed. The light guide plate structure in the backlight module may reduce a light mixing height of the backlight module and is advantageous to thinning the product; in addition, the structure of the light guide plate is simple and easy to be implemented, which is advantageous to lower the cost of the product.
    Type: Grant
    Filed: June 12, 2015
    Date of Patent: April 23, 2019
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventors: Yong Fan, Zuoyuan Qin
  • Patent number: 10267973
    Abstract: Provided is a wavelength conversion member, including: a wavelength conversion layer containing a quantum dot which is excited by excitation light and emits fluorescent light; and an adjacent layer directly laminated on the wavelength conversion layer, in which the shape of an interface between the wavelength conversion layer and the adjacent layer includes an irregular shape formed of a concave portion and a convex portion. Provided are a backlight unit, a polarizing plate, a liquid crystal panel, and a liquid crystal display device: including the wavelength conversion member.
    Type: Grant
    Filed: November 29, 2016
    Date of Patent: April 23, 2019
    Assignee: FUJIFILM Corporation
    Inventors: Yukito Saitoh, Yujiro Yanai, Naoyoshi Yamada, Takashi Yonemoto
  • Patent number: 10270020
    Abstract: An LED package structure includes a first metal plate, a second metal plate, and a mold. The first metal plate has at least one first protrusion portion. The second metal plate has at least one second protrusion portion. The mold is disposed on the first metal plate and the second metal plate, in which the mold has a first side surface, a second side surface opposite to the first side surface, a third side surface, and a fourth side surface opposite to the third side surface. The first and second protrusion portion protrude respectively from the first side surface and the second side surface, and the first metal plate and the second metal plate are covered by the third side surface and the fourth side surface, in which a portion of the first side surface between the first edge and the first protrusion portion is a fracture surface.
    Type: Grant
    Filed: June 20, 2017
    Date of Patent: April 23, 2019
    Assignee: LEXTAR ELECTRONICS CORPORATION
    Inventors: Dao-Wei Chen, Kun-Jung Wu, Bo-Yu Ko
  • Patent number: 10268089
    Abstract: According to one embodiment, a display device includes a display panel, a light source, a light guide and a prism sheet. The display panel includes a display area in which unit pixels each containing first sub-pixels and second sub-pixels are arranged along a first direction and a second direction. In the display area, the first sub-pixels have a width different from that of the second sub-pixel in at least one of the first direction and the second direction, or each unit pixel contains different numbers of first sub-pixels and second sub-pixels. The prism sheet is interposed between the light guide and the display panel and includes prisms extending along a third direction inclined with respect to the second direction by an acute angle of inclination.
    Type: Grant
    Filed: May 20, 2015
    Date of Patent: April 23, 2019
    Assignee: Japan Display Inc.
    Inventors: Tae Kurokawa, Akira Sakaigawa, Masaaki Kabe, Kojiro Ikeda, Amane Higashi
  • Patent number: 10261236
    Abstract: An area light source apparatus includes a first light source and a second light source. Each of the first light source and the second light source is a three-wavelength light-emitting diode. The first light source includes first spectral characteristics including a first peak value at a blue peak wavelength, a second peak value at a green peak wavelength, and a third peak value at a red peak wavelength. The second light source includes second spectral characteristics including a fourth peak value at a blue peak wavelength, a fifth peak value at a green peak wavelength, and a sixth peak value at a red peak wavelength. The second peak value is substantially equal to the fifth peak value, and the third peak value is substantially equal to the sixth peak value.
    Type: Grant
    Filed: June 17, 2015
    Date of Patent: April 16, 2019
    Assignee: Japan Display Inc.
    Inventors: Yuki Namekata, Junya Yamamoto
  • Patent number: 10254649
    Abstract: A method for producing an optical waveguide composing an optical path conversion component having an extremely low signal loss, allowing a high surface packaging density and high speed operation, and allowing high productivity. A method for producing an optical waveguide that propagates light from a surface of a support to an oblique direction not vertical to the surface, the method for producing an optical waveguide comprising the steps of: (1) providing an anti-reflective coating on the support; (2) placing a photosensitive resin composition on the anti-reflective coating, and exposing the photosensitive resin composition to a light ray entering from a direction non-vertical to the surface of the support through a photomask for curing the composition; and (3) removing the unexposed photosensitive resin composition by development; and an optical waveguide obtained by the method.
    Type: Grant
    Filed: October 16, 2014
    Date of Patent: April 9, 2019
    Assignees: TOKAI UNIVERSITY EDUCATIONAL SYSTEM, NISSAN CHEMICAL INDUSTRIES, LTD.
    Inventors: Osamu Mikami, Kentaro Ohmori, Hideyuki Nawata
  • Patent number: 10247985
    Abstract: A color filter substrate, a display panel and a display device are provided. The color filter substrate includes a base plate and a color filter layer formed on the base plate, a photoluminescent layer arranged at a side of the color filter layer away from the base plate, and a brightness enhancement structure arranged at the side of the color filter layer away from the base plate. In the color filter substrate, by arranging the photoluminescent layer and the brightness enhancement structure at the side of the color filter layer away from the base plate, the color filter substrate has a better color gamut and the brightness at a light-outgoing side is increased.
    Type: Grant
    Filed: July 29, 2016
    Date of Patent: April 2, 2019
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yonglian Qi, Tingting Zhou, Bin Zhang, Chuanxiang Xu, Xin Gu
  • Patent number: 10247986
    Abstract: Disclosed is a backlight module. The backlight module includes a backplane. The backplane is provided with a groove therethrough. Two sides and/or two ends of an optical diaphragm of the backlight module each are connected with a bendable flap which passes through the groove and is attached to the backplane. The backlight module has a simple structure without a plastic frame or a frame sealant, and an optical diaphragm in the backlight module can be fixed. A super narrow frame of the backlight module can be realized.
    Type: Grant
    Filed: December 27, 2016
    Date of Patent: April 2, 2019
    Assignee: Wuhan China Star Optoelectronics Technology Co., Ltd
    Inventors: Jie Zeng, Xiaoling Li
  • Patent number: 10247975
    Abstract: Embodiments provide a display device including: a thin film transistor disposed on an insulation substrate including a plurality of pixels; a common electrode and a pixel electrode disposed on the thin film transistor to overlap each other while interposing an insulating layer therebetween; a liquid crystal layer filling microcavities differentiated by pixel electrodes, the pixel electrodes comprising the pixel electrode; and a roof layer that is disposed on a microcavity of the microcavities and includes an injection hole extending to the microcavity and a supporting member to support the microcavity; and an optical member disposed on the supporting member, wherein the injection hole is disposed between adjacent microcavities in a column direction, and the supporting member is disposed between adjacent microcavities in a row direction. Total reflection of light, bad alignment, and light leakage which may occur in the display device may be prevented by the optical member.
    Type: Grant
    Filed: November 13, 2015
    Date of Patent: April 2, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hae Ju Yun, Yukinori Asakawa, Kwang Soo Bae, Min Jeong Oh
  • Patent number: 10241257
    Abstract: A display apparatus includes: a display panel; a light guide plate disposed behind the display panel; a printed circuit board; a heat radiator disposed on the printed circuit board and configured to radiate heat; and a plurality of light source packages disposed on the printed circuit board and configured to supply light to the light guide plate, each light source package of the plurality of light source packages including: a light source configured to generate the light; a light converter configured to convert properties of the light generated by the light source, and a package housing in which the light source is installed, the package housing being disposed on the printed circuit board and in contact with the light converter to transfer heat from the light converter to the heat radiator.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: March 26, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Joon Seok Ahn, Kye Hoon Lee
  • Patent number: 10244622
    Abstract: A display device includes a display panel with a first area having pixels on a first surface of a substrate, a second area having pads on the first surface of the substrate, and a third area part of the second area and having the second surface of the substrate bent toward the first surface, and a flexible PCB with a first bent portion in the second area and contacting and electrically connected to the pads, the first bent portion being bent from inside of the display panel toward an external side of the display panel to wrap around an edge of the display panel, and a second bent portion extending from the first bent portion and wrapping an external side of the second area and bent toward the inside of the display panel from the external side of the display panel to contact the second surface of the substrate.
    Type: Grant
    Filed: August 15, 2017
    Date of Patent: March 26, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Byoung Yong Kim, Jeong Ho Hwang
  • Patent number: 10234618
    Abstract: A backlight unit includes a first light source, a second light source, and a light guide plate having, on an upper surface, and, on a lower surface, a second pattern. The first pattern extracts, from the light guide plate, light from the first and second light sources, and emits the light towards a display panel. The second pattern extracts, from the light guide plate, light from the second light source, and emits the light toward the display panel. A display panel may include the backlight unit.
    Type: Grant
    Filed: December 6, 2016
    Date of Patent: March 19, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yoonsun Choi, Jinho Lee, Dong Kyung Nam
  • Patent number: 10234903
    Abstract: A method of manufacturing a display device includes providing a window including a printed area and a plurality of alignment key areas, patterning a printed layer on the printed area such that the plurality of alignment key areas is exposed and the printed layer covers the printed area, aligning a panel to the window by using the plurality of alignment key areas, and coupling the panel to the window.
    Type: Grant
    Filed: April 5, 2018
    Date of Patent: March 19, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jaechun Park, Younhwan Jung
  • Patent number: 10228584
    Abstract: A light source includes a light emitting element which emits light, and a light conversion layer which converts the light emitted from the light emitting element into white light and emits the white light, where the light conversion layer includes a resin and a quantum dot material mixed with the resin, and a red apex of a color region of the white light is positioned in a region of 0.65<Cx<0.69 and 0.29<Cy<0.3370 in color coordinates, and a green apex of a color region of the white light is positioned in a region of 0.17<Cx<0.31 and 0.61<Cy<0.70 in the color coordinates.
    Type: Grant
    Filed: September 21, 2015
    Date of Patent: March 12, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Tae Hyung Kim, Eun Joo Jang, Shin Ae Jun, Hyun A Kang, Yongwook Kim, Na Youn Won, Hyo Sook Jang
  • Patent number: 10228505
    Abstract: An imaging directional backlight apparatus including a waveguide, a light source array, for providing large area directed illumination from localized light sources. The waveguide may include a stepped structure, in which the steps may further include extraction features optically hidden to guided light, propagating in a first forward direction. Returning light propagating in a second deflected direction may be refracted, diffracted, or reflected by the features to provide discrete illumination beams exiting from the top surface of the waveguide. Viewing windows are formed through imaging individual light sources from the side of the waveguide and hence defines the relative positions of system elements and ray paths. A directional backlight with small footprint and low thickness may be provided.
    Type: Grant
    Filed: May 26, 2016
    Date of Patent: March 12, 2019
    Assignee: RealD Spark, LLC
    Inventors: Michael G. Robinson, Robert A. Ramsey, Graham J. Woodgate
  • Patent number: 10229963
    Abstract: In a general aspect, a display device may include a flexible display having a substantially flat central portion and an end portion, a printed circuit film disposed on the end portion of the display, a panel member attached to the printed circuit film, the panel member being bent around a bend axis to form an edge of the display, and a support structure disposed inside of formed edge of the panel member, the support structure being non-parallel to the flat central portion of the display. The panel member may conform to a shape of the support structure.
    Type: Grant
    Filed: November 1, 2017
    Date of Patent: March 12, 2019
    Assignee: GOOGLE LLC
    Inventors: Qi Qi, Ken Foo, Yi Tao, John Kaehler
  • Patent number: 10222533
    Abstract: The described technology relates to a backlight unit and a display device including the backlight unit. In one aspect, the backlight unit includes a light source and a light guiding plate configured to guide light emitted from the light source. The backlight unit also includes an optical sheet integrally formed with the light guiding plate and including a micro pattern configured to emit light reflected from the light guiding plate.
    Type: Grant
    Filed: April 6, 2015
    Date of Patent: March 5, 2019
    Assignee: Kookmin University Industry Academy Cooperation Foundation
    Inventors: Jae Gab Lee, Hoe Sub Soh, Jin Hyuk Kwon
  • Patent number: 10215368
    Abstract: An adaptive backlight module and a method and system for producing an adaptive backlight module are described herein. In one example, an adaptive backlight module includes a light source, a polarizer, at least one enhancement film disposed between the light source and the polarizer, and a diffuser disposed between the light source and the enhancement film. The diffuser includes a first electrode coupled to a first substrate and a second electrode coupled to a second substrate. A liquid crystal layer is disposed between the first electrode and the second electrode of the diffuser.
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: February 26, 2019
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Michael P. Stewart, Hann-Ching Chao, Daniel Paul Forster
  • Patent number: 10203551
    Abstract: The present disclosure relates to the field of display technologies, and discloses a light guide plate, a backlight module and a display device, for improving light exit uniformity of the light guide plate and reducing occurrence of phenomenons such as brightness non-uniformity and intersecting light beams of the display device. A plurality of first light-diffusing units is disposed on a light incident surface of the light guide plate. At least one light-diffusing structure is disposed in a set region within the light guide plate in a direction facing away from the light incident surface. In the light guide plate, by disposing a plurality of first light-diffusing units and at least one light-diffusing structure on the light incident surface, light emitted from a light source can be better diffused after passing through the light guide plate and become more uniform before entering the display panel.
    Type: Grant
    Filed: September 2, 2016
    Date of Patent: February 12, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BOE OPTICAL SCIENCE AND TECHNOLOGY CO., LTD.
    Inventors: Xiaoli Xie, Wentao Ying
  • Patent number: 10203442
    Abstract: A backlight unit includes side emitting-type LEDs, a light guide plate, and an LED board. The light guide plate includes a light entering end surface, a light exiting plate surface, and an opposite plate surface. The LED board includes a plate surface attached to an edge of the opposite plate surface. A gap in a range from 0.1 mm to 0.2 mm is provided between light emitting surfaces of the LEDs and the light entering end surface. The edge of each light emitting surface is at a position ?D1 mm inner than an edge of the light entering end surface with respect to a thickness direction of the light guide plate. An edge of each light emitting surface is at a position ?D2 mm inner than an edge of the light entering end surface. ?D1 and ?D2 satisfy relational expressions: ?D2??D1 and ?D2?0.1.
    Type: Grant
    Filed: October 21, 2016
    Date of Patent: February 12, 2019
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Hisashi Watanabe, Hirotoshi Yasunaga, Ryuzo Yuki, Mitsuhiro Murata
  • Patent number: 10204259
    Abstract: A fingerprint identification module and a manufacturing method thereof, and a display device are provided. The fingerprint identification module includes: a first electrode layer and a second electrode layer opposed to each other, and a transparent insulating layer interposed between the first electrode layer and the second electrode layer; the first electrode layer includes a plurality of first electrode wires spaced apart from each other; the second electrode layer includes a plurality of second electrode wires spaced apart from each other; the plurality of second electrode wires and the plurality of first electrode wires are intersected with each other; the first electrode layer is formed of a transparent conductive material, and the second electrode layer is a wire grid polarizer.
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: February 12, 2019
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Yingyi Li
  • Patent number: 10197828
    Abstract: A display device and a control method thereof are provided. The display device includes a light emitter, configured to emit light; and a light reflector, configured to reflect the light from the light emitter onto one or more side viewing regions of a viewing region of a display panel. The viewing region further includes a front viewing region in front of the display panel. The one or more side viewing regions are adjacent to the front viewing region.
    Type: Grant
    Filed: May 24, 2017
    Date of Patent: February 5, 2019
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Yanbing Wu
  • Patent number: 10191201
    Abstract: A light emitting emblem includes: a board; a light source arranged at the board; a light guide plate having a second peripheral edge and an inner side portion, the second peripheral edge having a first surface facing the light source and a second surface opposite to the first surface, the first surface including a light entering part into which light from the light source is incident, and the second surface including an inclination part through which the light incident into the light entering part is reflected to the inner side portion from the second peripheral edge; and a shielding plate that shields the light from the light source and prevents light not incident from the light entering part from being incident into the inner side portion, wherein the inclination part is positioned at an outer edge of the light emitting emblem from the shielding plate.
    Type: Grant
    Filed: June 9, 2017
    Date of Patent: January 29, 2019
    Assignee: TOYODA GOSEI CO., LTD.
    Inventors: Yuki Kuramitsu, Hirotaka Fukui, Yoshiharu Tanaka
  • Patent number: 10162103
    Abstract: A display includes a light guide plate, a plurality of light sources disposed along an edge of the light guide plate, and a flexible carrier to which the plurality of light sources are secured. The flexible carrier includes a plurality of flexures, each flexure of the plurality of flexures disposed between a respective pair of adjacent light sources of the plurality of light sources to allow a spacing between the pair of adjacent light sources to change.
    Type: Grant
    Filed: April 1, 2015
    Date of Patent: December 25, 2018
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Tristan Thomas Trutna, Edward Francis Burress
  • Patent number: 10151960
    Abstract: Methods, systems, apparatuses, and computer program products are provided for a backlight assembly for a display device. The backlight assembly includes a transparent waveguide layer, a plurality of light sources, and a tunable grating layer. The light sources are arranged along an edge of the waveguide layer. Each light source transmits light into the waveguide layer through the edge. The grating layer is coupled to the waveguide layer, and has multiple rows. Each row of the grating layer is segmented into a series of cells so the grating layer is sectioned into an array of cells. Each cell is independently controllable to either not extract incident light received from within the waveguide layer, or to extract the incident light for emission from the backlight assembly. In another configuration, the waveguide layer is not present, and the light sources transmit light directly into an edge of the grating layer.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: December 11, 2018
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Jiandong Huang, Steven Bathiche
  • Patent number: 10145606
    Abstract: An illustrative refrigeration unit door includes a transparent window portion that receives light from a light source such that the light exhibits total internal reflection within the window portion. A series of uniformly-sized prisms with non-uniform spacing ejects light from one face of the transparent window portion at angles around 60 degrees and 30 degrees. Collimated light can be used to reduce the amount of light ejected from a second face of the transparent window that is opposite the first face.
    Type: Grant
    Filed: April 24, 2012
    Date of Patent: December 4, 2018
    Assignee: Seoul Semiconductor Co., Ltd.
    Inventor: David G. Pelka
  • Patent number: 10132978
    Abstract: The present invention has an object to provide a production method that can prevent side etching and delamination of an anisotropic dye coating formed by an application process, thereby providing a polarizing element that exhibits durable performance and rugged reliability and that is less affected by a solvent or the like used in a production process after formation of the anisotropic dye coating, which leads to improved flexibility of the production process. The present invention also provides a polarizing element that includes a substrate, an anisotropic dye coating, and a resin composition layer, wherein the anisotropic dye coating and the resin composition layer are sequentially layered on the substrate, wherein the top surface and all side surfaces of the anisotropic dye coating are covered with the resin composition layer, and wherein the anisotropic dye coating and the resin composition layer are not formed on portions of the substrate.
    Type: Grant
    Filed: December 23, 2015
    Date of Patent: November 20, 2018
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Koji Yamauchi, Minoru Torigoe
  • Patent number: 10088700
    Abstract: A double-side display device and a fixing structure of a backlight module of the same. The fixing structure includes: a first fixing part, a second fixing part, and a third fixing part, wherein the first fixing part includes a first main body portion, a first carrying portion and a first connection portion formed integrally; the second fixing part includes a second connection portion and a second carrying portion formed integrally, the second connection portion is detachably connected with the first connection portion; and the third fixing part includes a third main body portion, a third carrying portion and a third connection portion formed integrally, wherein the third connection portion is used for fixing and connecting with the first fixing part. The fixing structure for the backlight module realize the fixing to the backlight module through multiple fixing parts which is simple in structure, and the assembly process is simple.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: October 2, 2018
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventors: Zuwei Zhang, Guofu Tang, Weifeng Chen
  • Patent number: 10078169
    Abstract: A quantum tube includes a tube body, a plurality of first fluorescent particles and a plurality of second fluorescent particles. The tube body has a light incident surface, a light emitting surface, a top surface and a bottom surface. The top surface is connected between the light incident surface and the light emitting surface. The bottom surface is connected between the light incident surface and the light emitting surface. The top surface is opposite to the bottom surface. The top surface has an inclined portion. The inclined portion inclines with respect to the bottom surface by an angle. The first fluorescent particles are disposed in the tube body. The second fluorescent particles are disposed in the tube body.
    Type: Grant
    Filed: March 1, 2016
    Date of Patent: September 18, 2018
    Assignees: HannStar Display (Nanjing) Corporation, HANNSTAR DISPLAY CORPORATION
    Inventors: Chun-Pin Liu, Chin-Wei Lin
  • Patent number: 10078172
    Abstract: A display device includes a display panel and a backlight unit which provides light to the display panel. The backlight unit includes a light source which emits the light, a light guide plate which guides the light emitted from the light source toward the display panel, and a prism plate. The prism plate includes a base film disposed on the light guide plate and a plurality of prisms disposed on the base film. Each of the prisms has an isosceles trapezoidal section, two base angles of which are obtuse angles, when viewed from a cross-sectional view in a width direction.
    Type: Grant
    Filed: February 9, 2016
    Date of Patent: September 18, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kang-woo Lee, Youra Kim, Myeong-ju Shin, Seunghwan Chung
  • Patent number: 10073215
    Abstract: An illumination device includes: a light source; an optical component provided separately from the light source; a holding member holding the light source and the optical component; and a variable pressing member variably pressing the optical component against the holding member.
    Type: Grant
    Filed: August 25, 2017
    Date of Patent: September 11, 2018
    Assignee: Saturn Licensing LLC
    Inventor: Yoshihiro Abe