Formed Of Planar Phosphor Or Fluorescent Layer Separate From Illumination Source Patents (Class 349/71)
  • Patent number: 10488728
    Abstract: According to one embodiment, a display device includes a first substrate, a second substrate, a liquid crystal layer held between the first and the second substrates, and a light-emitting element including light-emitting portions arranged in a first direction. The first substrate includes first and second wiring lines, and a third wiring line which intersects the first and the second wiring lines. The first and the second wiring lines extend in a second direction. The third wiring line has a first side located on a side close to the light-emitting element. The first side has a first curved portion which is curved between the first and the second wiring lines.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: November 26, 2019
    Assignee: Japan Display Inc.
    Inventors: Yudai Numata, Kentaro Okuyama, Yoshihide Ohue
  • Patent number: 10473971
    Abstract: A color conversion display panel according to an exemplary embodiment includes a transmission layer disposed on a substrate, a color conversion layer disposed on the substrate and including at least one of a quantum dot and a phosphor, a wire grid pattern disposed on the color conversion layer and the transmission layer, and a reflection pattern connected to a part of the wire grid pattern and disposed between the color conversion layer and the transmission layer disposed adjacent to the color conversion layer.
    Type: Grant
    Filed: April 20, 2017
    Date of Patent: November 12, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seon Uk Lee, Sung Man Kim, Han Jun Yu, Seong Su Lim, Kyung Tae Chae, Tae Hyung Hwang
  • Patent number: 10429574
    Abstract: The present disclosure provides a liquid crystal display and a backlight module thereof. The backlight module includes a light guide plate, a reflective layer, an optical film assembly and a light-emitting assembly. The optical film assembly is disposed on a top of the light guide plate, the reflective layer is disposed on a bottom of the light guide plate, the light-emitting assembly includes an LED light bar disposed opposite a light incident surface of the light guide plate and a substrate disposed on a bottom of the LED light bar, and the substrate extends to a bottom of the reflective layer. The present disclosure enlarges the assembly space of the substrate by disposing the substrate on the bottom of the reflective layer and extending the substrate to the bottom of the reflective layer, thereby making it easier to dissipate heat of the LED light bar.
    Type: Grant
    Filed: July 26, 2017
    Date of Patent: October 1, 2019
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Zhenzhen Zhang
  • Patent number: 10422937
    Abstract: To provide a wavelength converting member in which the occurrence of blackening can be suppressed compared to the prior art; and a light emitting device, a light emitting element, a light source unit, and a display device using the wavelength converting member. The wavelength converting member includes: a receptacle including a light entrance plane and a light exit plane opposite to the light entrance plane and provided with a receiving space inside the light entrance plane and the light exit plane; and a wavelength conversion layer having quantum dots that is placed in the receiving space. The distance between the light entrance plane and the wavelength conversion layer is longer than the distance between the light exit plane and the wavelength conversion layer.
    Type: Grant
    Filed: October 27, 2015
    Date of Patent: September 24, 2019
    Assignee: NS MATERIALS INC.
    Inventors: Akiharu Miyanaga, Shingo Kokudo, Eiichi Kanaumi, Tetsuji Ito, Yoshikazu Nageno
  • Patent number: 10379287
    Abstract: A backlight module and a liquid crystal display device are provided. The backlight module includes a heat dissipation plate having a groove in which a first buffer block is formed; a light guide plate is arranged between the heat dissipation plate and a middle frame; the light guide plate includes a light incidence side; a light source is arranged facing the light incidence side of the light guide plate. The middle frame is disposed over the light guide plate and the light source. A quantum strip is inserted into the groove, with one end portion of the quantum strip being attached to the first buffer block.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: August 13, 2019
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Quan Li
  • Patent number: 10373574
    Abstract: Dual modulator displays are disclosed incorporating a phosphorescent plate interposed in the optical path between a light source modulation layer and a display modulation layer. Spatially modulated light output from the light source modulation layer impinges on the phosphorescent plate and excites corresponding regions of the phosphorescent plate which in turn emit light having different spectral characteristics than the light output from the light source modulation layer. Light emitted from the phosphorescent plate is received and further modulated by the display modulation layer to provide the ultimate display output.
    Type: Grant
    Filed: February 26, 2018
    Date of Patent: August 6, 2019
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Lorne A. Whitehead, Gregory John Ward, Louis D. Silverstein, Helge Seetzen
  • Patent number: 10324373
    Abstract: A photosensitive composition and a quantum dot-polymer composite pattern formed from the photosensitive composition are disclosed, and the photosensitive composition includes: a plurality of quantum dots; a color filter material including an absorption dye, an absorption pigment, or a combination thereof; a polymer binder; a photopolymerizable monomer having a carbon-carbon double bond; a photoinitiator; and a solvent, wherein in a normalized photoluminescence spectrum of the quantum dot and a normalized ultraviolet-visible absorption spectrum of the color filter material, a photoluminescence peak wavelength (PL peak wavelength) of the quantum dot and a wavelength of maximum absorbance of the color filter material do not overlap with each other, and the color filter material is included in an amount of less than or equal to 1 part by weight per 10 parts by weight of the plurality of quantum dots.
    Type: Grant
    Filed: March 19, 2018
    Date of Patent: June 18, 2019
    Assignees: SAMSUNG ELECTRONICS CO., LTD., SAMSUNG DISPLAY CO., LTD., SAMSUNG SDI CO., LTD.
    Inventors: Hyeyeon Yang, Tae Hyung Kim, Shang Hyeun Park, Shin Ae Jun, Yong Seok Han, Eun Joo Jang, Deukseok Chung
  • Patent number: 10317740
    Abstract: A display panel and a display apparatus including the display panel are provided. The display panel includes: a light transmitter disposed on a first pixel electrode and a light converting unit disposed on a second pixel electrode. A portion of the light converting unit extends toward the light transmitter and covers a part of the first pixel electrode.
    Type: Grant
    Filed: September 22, 2017
    Date of Patent: June 11, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kye Hoon Lee, Sang Hyun Sohn
  • Patent number: 10305004
    Abstract: Provided an LED display apparatus including: an LED substrate in which a plurality of LED elements emitting first-wavelength light are arranged in rows and columns; a first wavelength conversion sheet provided on the LED substrate and converting the first-wavelength light into second-wavelength light; and a second wavelength conversion sheet provided on the first wavelength conversion sheet and converting the first-wavelength light or the second-wavelength light into third-wavelength light.
    Type: Grant
    Filed: February 5, 2018
    Date of Patent: May 28, 2019
    Assignee: LUMENS CO., LTD.
    Inventors: Tae Kyung Yoo, Seong Bok Yoon
  • Patent number: 10192932
    Abstract: Displays including hybrid pixels including an OLED subpixel and QD-LED subpixel are described. In an embodiment, OLED and QD-LED stacks are integrated into the same pixel with multiple common layers shared by the OLED and QD-LED stacks.
    Type: Grant
    Filed: August 23, 2016
    Date of Patent: January 29, 2019
    Assignee: Apple Inc.
    Inventors: Jonathan S. Steckel, Mathew K. Mathai, Paul S. Drzaic, Hitoshi Yamamoto
  • Patent number: 10139676
    Abstract: The present application relates to a light conversion device, a backlight unit and a display apparatus.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: November 27, 2018
    Assignee: LG CHEM, LTD.
    Inventors: Du Hyeon Shin, Dong Wook Lee, Jungho Lim, Soojung Yeo
  • Patent number: 10114109
    Abstract: An array lidar system and a method of assembling an array lidar system comprising a plurality of illuminators and a plurality of detectors includes designing a plurality of hexagons of a same size such that no gaps remain between adjacent ones of the plurality of hexagons, and designing an arrangement of the plurality of illuminators or the plurality of detectors according to a hexagonal construct, the designing including arranging one or more illuminators of the plurality of illuminators or one or more detectors of the plurality of detectors within respective ones of the plurality of hexagons, wherein the one or more illuminators or the one or more detectors is at a same position within each of the respective ones of the plurality of hexagons. Implementing the design is done by disposing the plurality of illuminators or the plurality of detectors according to the arrangement.
    Type: Grant
    Filed: May 4, 2016
    Date of Patent: October 30, 2018
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Ran Y. Gazit, Oded Bialer, Kobi J. Scheim, Ariel Lipson
  • Patent number: 10007156
    Abstract: The present invention provides an array substrate and a manufacturing method thereof. The array substrate of the present invention includes: a base plate (1), a TFT layer (2) arranged on the base plate (1), a quantum dot layer (3) arranged on the TFT layer (2), and a protective filter layer (4) arranged on the quantum dot layer (3). The arrangement of the quantum dot layer (3) helps compensate the insufficiency of color displaying of an existing color filter layer and expands the range of color gamut. The arrangement of the protective filter layer (4) helps overcome the issues of poor efficiency and stability of the prior art quantum dot.
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: June 26, 2018
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Xiaoping Cheng, Yungjui Lee
  • Patent number: 9989800
    Abstract: A method of manufacturing a polarizer, includes forming a polarizing layer having a light axis for polarized light, forming an upper coating layer on an upper surface of the polarizing layer, forming an adhesive layer on an upper surface of the upper coating layer, forming a lower coating layer on a lower surface of the polarizing layer, and forming a protection layer on a lower surface of the lower coating layer, wherein the lower coating layer includes a wavelength conversion material configured to convert a wavelength of a received light to a different wavelength.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: June 5, 2018
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Chang Soo Kim, Chae Kyung Lim
  • Patent number: 9958735
    Abstract: A liquid crystal display according to an exemplary embodiment of the inventive concept includes a substrate; a thin film transistor positioned on the substrate; a pixel electrode connected to the thin film transistor; a roof layer positioned to face the pixel electrode; a liquid crystal layer positioned between the pixel electrode and the roof layer within a plurality of microcavities; a capping layer positioned adjacent to the microcavities; and a color conversion panel including a plurality of color conversion media layers on the roof layer and the capping layer, wherein the capping layer is positioned along a trench formed between the plurality of microcavities.
    Type: Grant
    Filed: September 6, 2016
    Date of Patent: May 1, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Dae Ho Song, Jung Hyun Kwon, Kwang Keun Lee, You Young Jin
  • Patent number: 9939678
    Abstract: A backlight module includes a light-emitting element, which can emit a first light with a wavelength in a first wavelength range, a quantum dot diaphragm, which is formed by combining a plurality of sub-diaphragms each with a small area together and can emit a second light with a wavelength in a second wavelength range and a third light with a wavelength in a third wavelength range, and a diffusing plate used for light homogenization. The defects of low qualified rate of quantum dot diaphragm with large area manufactured currently and a poor homogeneity thereof can be avoided.
    Type: Grant
    Filed: September 25, 2014
    Date of Patent: April 10, 2018
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Yong yuan Qiu, Zan jia Su
  • Patent number: 9921472
    Abstract: A photosensitive composition and a quantum dot-polymer composite pattern formed from the photosensitive composition are disclosed, and the photosensitive composition includes: a plurality of quantum dots; a color filter material including an absorption dye, an absorption pigment, or a combination thereof; a polymer binder; a photopolymerizable monomer having a carbon-carbon double bond; a photoinitiator; and a solvent, wherein in a normalized photoluminescence spectrum of the quantum dot and a normalized ultraviolet-visible absorption spectrum of the color filter material, a photoluminescence peak wavelength (PL peak wavelength) of the quantum dot and a wavelength of maximum absorbance of the color filter material do not overlap with each other, and the color filter material is included in an amount of less than or equal to 1 part by weight per 10 parts by weight of the plurality of quantum dots.
    Type: Grant
    Filed: October 17, 2016
    Date of Patent: March 20, 2018
    Assignees: SAMSUNG ELECTRONICS CO., LTD., SAMSUNG DISPLAY CO., LTD., SAMSUNG SDI CO., LTD.
    Inventors: Hyeyeon Yang, Tae Hyung Kim, Shang Hyeun Park, Shin Ae Jun, Yong Seok Han, Eun Joo Jang, Deukseok Chung
  • Patent number: 9885954
    Abstract: A photosensitive resin composition according to an exemplary embodiment of the present invention includes: a nanophosphor; a photo-polymerization initiator including an acetophenone-based initiator; and a photo-polymerization compound, wherein the photo-polymerization initiator further includes at least one among a thioxanthone-based initiator, an oxime-based initiator, and a benzophenone-based initiator.
    Type: Grant
    Filed: February 22, 2016
    Date of Patent: February 6, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Baek Hee Lee, Young Min Kim, Min Ki Nam, Hae Il Park, Seon-Tae Yoon
  • Patent number: 9874779
    Abstract: A liquid crystal display device and a method of manufacturing the same are discussed. The liquid crystal display device can include a backlight unit; and a liquid crystal panel having a lower polarizer arranged on the backlight unit, wherein the lower polarizer includes a polarizing layer having a light axis for polarized light and a wavelength conversion material provided between the polarizing layer and the backlight unit.
    Type: Grant
    Filed: September 2, 2015
    Date of Patent: January 23, 2018
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Chang Soo Kim, Chae Kyung Lim
  • Patent number: 9846329
    Abstract: A display panel and a liquid crystal display are disclosed. The display panel includes an upper polarizer, a lower polarizer, a first substrate and a second substrate disposed oppositely between the upper polarizer and the lower substrate, a liquid crystal layer disposed between the first substrate and the second substrate, a quantum dot layer disposed at a side of the second substrate which is far away from the liquid crystal layer, and a protection layer for protecting the quantum dot layer, disposed between the quantum dot layer and the lower polarizer. The quantum dot layer is disposed at a side of the second substrate far away from the liquid crystal layer, and the protection layer is disposed between the quantum dot layer and the lower polarizer. The protection layer is used for preventing the quantum dot layer from being oxidized. The color gamut of LCD can be increased.
    Type: Grant
    Filed: June 12, 2015
    Date of Patent: December 19, 2017
    Assignee: Wuhan China Star Optoelectronics Technology Co., Ltd
    Inventors: Jie Zeng, Anshi Li
  • Patent number: 9841628
    Abstract: The present invention provides a liquid crystal display device including a backlight module and a liquid crystal panel including a color film substrate, an array substrate, and a liquid crystal layer sandwiched between the color film substrate and the array substrate, the backlight module is a blue light source; the array substrate includes a glass substrate and a color layer provided on the glass substrate and a polarized layer laminated on the color layer. The polarized layer is disposed adjacent to the liquid crystal layer. The color layer includes a blue light filter layer and a color unit layer which is laminated on the blue light filter layer and on the back of the surface of the polarized layer. The color unit layer includes a plurality of color units, and each of the color units includes a red color quantum rod layer, a green quantum rod layer and a transparent color filter layer. The present invention also discloses an electronic equipment.
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: December 12, 2017
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventor: Yong Fan
  • Patent number: 9812076
    Abstract: A liquid crystal display including: a liquid crystal display including: a first polarizer, a second polarizer, a gate line, a data line, a thin film transistor, a pixel electrode, a first light blocking member, a second light blocking member, a liquid crystal layer, and a common electrode; a color conversion panel including a third light blocking member and a color conversion media layer, the color conversion panel being disposed on the liquid crystal panel; and a backlight assembly configured to supply light to the liquid crystal panel and the color conversion panel, wherein the first light blocking member overlaps the data line, wherein the second light blocking member is disposed between the first light blocking member and the third light blocking member, the third light blocking member overlapping the first light blocking member, and wherein the third light blocking member overlaps the second light blocking member.
    Type: Grant
    Filed: April 24, 2015
    Date of Patent: November 7, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kwang Keun Lee, Jung Hyun Kwon, Young Min Kim, Min Ki Nam, Hae Il Park
  • Patent number: 9780320
    Abstract: A white light emitting diode device includes a substrate, an ultraviolet light source generating panel and a photoluminescent layer. The ultraviolet light source generating panel is disposed on a first surface of the substrate. The ultraviolet light source generating panel is used for generating ultraviolet light. The photoluminescent layer is disposed on a second surface of the substrate. The photoluminescent layer is used for generating white light when the photoluminescent layer is irradiated by the ultraviolet light.
    Type: Grant
    Filed: September 24, 2015
    Date of Patent: October 3, 2017
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD
    Inventor: Kaifeng Zhou
  • Patent number: 9733512
    Abstract: A liquid crystal display device, in which a backlight unit, a light conversion member, a selective reflection member, a liquid crystal cell, and a display-side polarizer are disposed in this order, the backlight unit includes a light source that emits unpolarized light having a light emission central wavelength in a wavelength range of 300 nm to lower than 430 nm, the selective reflection member reflects 60% to 100% of the unpolarized light entering the selective reflection member and transmits at least some of light in a wavelength of higher than 430 nm to 650 nm, and the light conversion member includes an aligned fluorescent material that emits blue, green and red light which are linearly polarized in a vibration direction parallel to an absorption axis of the display-side polarizer, is improved in terms of the front surface luminance.
    Type: Grant
    Filed: February 4, 2016
    Date of Patent: August 15, 2017
    Assignee: FUJIFILM Corporation
    Inventors: Ryuji Saneto, Katsufumi Ohmuro
  • Patent number: 9720149
    Abstract: A display device with a color conversion layer providing predetermined colors for full-color display. The color conversion layer includes a plurality of color conversion units. Each color conversion unit includes a quantum dot film. The color conversion unit is configured to receive light beams and converts the light beams to primary colors to emit. Each color conversion unit defines a plurality of areas, and each primary color corresponds to one of the areas of the color conversion unit.
    Type: Grant
    Filed: December 24, 2014
    Date of Patent: August 1, 2017
    Assignee: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: I-Wei Wu, Yung-Fu Lin, Chang-Ting Lin, Shih-Pin Tseng, Pen-Chu Lin
  • Patent number: 9639319
    Abstract: A display panel and a display device are provided. The display panel comprises a first substrate (1), a first liquid crystal display structure (2) and an organic electroluminescent structure (3); the first liquid crystal display structure (2) and the organic electroluminescent structure (3) are respectively provided at opposite sides of the first substrate (1), the organic electroluminescent structure (3) emits light from both sides; the light emitted from a side facing the first liquid crystal display structure (2) is used as the backlight for the first liquid crystal display structure (2), and the light emitted from a side facing away from the first liquid crystal display structure (2) can be used for displaying or illumination. The display panel is capable of double-sided display or illumination and has a reduced thickness.
    Type: Grant
    Filed: August 22, 2014
    Date of Patent: May 2, 2017
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Guodong Huang, Seiji Fujino, Jiangbo Wang
  • Patent number: 9612476
    Abstract: The present invention provides a structure of a high color gamut liquid crystal display module, which includes a backlight module (1) and a liquid crystal display panel (3) arranged above the backlight module (1). The backlight module (1) includes an LED light source (17) and the LED light source (17) is an LED light source having a wavelength below 460 nm. The liquid crystal display panel (3) includes a TFT substrate (31), a CF substrate (33) arranged above the TFT substrate (31), a liquid crystal layer (35) arranged between the TFT substrate (31) and the CF substrate (33), and a fluorescent powder layer (5) arranged on a lower surface of the TFT substrate (31). The CF substrate (33) includes red, green, and blue sub-pixel units that are arranged in a matrix. The fluorescent powder layer (5) includes at least two of red, green, and blue fluorescent powder units (51, 53, 55), which are arranged to respectively correspond to the blue, green, or blue sub-pixel units.
    Type: Grant
    Filed: August 15, 2014
    Date of Patent: April 4, 2017
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventors: Yongyuan Qiu, Zanjia Su
  • Patent number: 9605199
    Abstract: Blue and green-emitting Eu2+-activated oxyhalide phosphors of formula A-E may be used in devices for lighting or display applications: A. M3SiO3X4:Eu2+; B. M5Si3O9X4:Eu2+; C. M1.64Si0.82O3.1X0.36:Eu2+; D. M10Si3O9X14:Eu2+; E. M2SiO3X2:Eu2+; and wherein M is Ba, Ca, Sr, or a mixture thereof; X is Cl or Br, or a mixture thereof.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: March 28, 2017
    Assignee: General Electric Company
    Inventors: Sam Joseph Camardello, Alok Mani Srivastava, Holly Ann Comanzo, William Winder Beers, Fangming Du, William Erwin Cohen
  • Patent number: 9551822
    Abstract: A display device including a light source; a wavelength conversion member to convert a wavelength of light generated from the light source; a light guide member to guide the light converted by the wavelength conversion member; and an adhering member. In addition, the wavelength conversion member includes a first surface facing the light source; a second surface facing the light guide member; a top surface extending from the first surface to the second surface; and a bottom surface facing the top surface. Furthermore, the adhering member is disposed on the top surface and the bottom surface. Also, the wavelength conversion member includes a tube, the tube receives a sealing member, an air layer and a matrix therein, and the air layer is formed between the sealing member and the matrix.
    Type: Grant
    Filed: March 22, 2016
    Date of Patent: January 24, 2017
    Assignee: LG INNOTEK CO., LTD.
    Inventor: Jin Ho Lee
  • Patent number: 9534757
    Abstract: The present invention provides a lamp for a vehicle, including: a light source assembly in which a plurality of light sources, which produces a blue beam, is provided; and an upper substrate which is made of a transparent material that transmits light, is provided to cover upper portions of the light sources, and has one side surface on which a phosphor film is formed, and as a result, a dark zone on a beam pattern, which occurs due to a distance between the light sources in the lamp in which the plurality of light sources is mounted, may be eliminated.
    Type: Grant
    Filed: March 17, 2014
    Date of Patent: January 3, 2017
    Assignee: HYUNDAI MOBIS CO., LTD.
    Inventor: Dong Gon Kang
  • Patent number: 9475986
    Abstract: There is provided a red phosphor including a compound represented by an empirical formula Az(Sr,M)2(Si,Al)O4-xNy:R(0<x<3, y=2x/3, and 0.0001?z<0.1), and has a grain size distribution corresponding to 6.9 ?m?D50?13.9 ?m, wherein M and Al are optional, A is at least one element selected from a group consisting of lithium (Li), potassium (K) and sodium (Na), and M is at least one element selected from a group consisting of Barium (Ba), magnesium (Mg) and calcium (Ca).
    Type: Grant
    Filed: May 18, 2012
    Date of Patent: October 25, 2016
    Inventors: Do-Hwan Kim, Sang-Hyun Kim, Chul-Soo Yoon
  • Patent number: 9405146
    Abstract: A quantum dot color filter is used for a liquid crystal panel comprising a plurality of pixels. Each pixel has a plurality of sub-pixels. Each sub-pixel corresponds to one color. The color filter includes subregions disposed in one to one correspondence with the sub-pixels. At least one subregion is formed of a quantum dot material and the quantum dot material generates light of the same color as a corresponding sub-pixel after excitation.
    Type: Grant
    Filed: November 5, 2013
    Date of Patent: August 2, 2016
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Lilei Zhang
  • Patent number: 9405151
    Abstract: A display apparatus includes a display panel and a backlight unit. The display panel includes a first substrate and a second substrate. The first substrate includes a first base substrate and a wavelength transforming member. The wavelength transforming member is formed on a first surface of the first base substrate to change a wavelength of light to emit visible light having a predetermined wavelength. The second substrate includes a second base substrate and a light shutter member. The second base substrate faces the first base substrate. The light shutter member is formed on a first surface of the second base substrate facing the first surface of the first base substrate. The light shutter member controls light transmittance of the light received from the wavelength transforming member. The backlight unit provides the display panel with the light. Thus, color purity of image is increased, thereby improving image display quality.
    Type: Grant
    Filed: July 27, 2012
    Date of Patent: August 2, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hae-Il Park, Jae-Byung Park
  • Patent number: 9295855
    Abstract: Apparatus and methods to enhance light intensity within useful red to near-infrared spectral ranges, using direct or indirect sunlight, or from other ambient white light, are described. The disclosed devices provide high quantum yield photoluminescent ambient light spectrum conversion to increase the supplied energy primarily in the 590 nm-850 nm spectral range. These devices also pass much of the incident light in the spectral range in which the device's photoluminescent materials emit light, thereby greatly increasing the effective intensity of light available in the targeted 590-850 nm wavelength range. The ambient light conversion devices of the disclosure may be incorporated in apparel, bandage-like patches, converting reflectors, large area converters, awnings, window covers, and other articles, materials, and products.
    Type: Grant
    Filed: March 17, 2014
    Date of Patent: March 29, 2016
    Inventors: Gary W. Jones, Susan K. Schwartz Jones
  • Patent number: 9293091
    Abstract: A display apparatus includes: a display panel including first to third sub pixels which receive a first grayscale data, a second grayscale data and a third grayscale data, respectively; a light source part which provides light to the display panel and sequentially turns on first and second light sources, which emit a first light and a second light having a color different from the first light, respectively; and a color conversion layer including a first photoluminescence part which is excited by the first light to emit light having a first primary color, a second photoluminescence part which is excited by the first light to emit light having a second primary color, and a third photoluminescence part which is excited by the first light to emit light having a third primary color, where the first to third photoluminescence parts overlap the first to third sub pixels, respectively.
    Type: Grant
    Filed: August 11, 2014
    Date of Patent: March 22, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kwang-Keun Lee, Hae-Il Park, Seon-Tae Yoon
  • Patent number: 9239458
    Abstract: A display device includes a light source unit that emits a first light with a first wavelength, an optical filter that converts the first light to a second light, and an optical shutter that transmits or reflects the first light or the second light.
    Type: Grant
    Filed: December 31, 2012
    Date of Patent: January 19, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seon-Tae Yoon, Jong Hyuk Kang, Jae Byung Park, Mun-Ki Sim, Dae Hyun Kim, Minki Nam, Haeil Park, Dong-Hoon Lee, Hyun Min Cho
  • Patent number: 9134564
    Abstract: A color liquid crystal display device includes a liquid crystal display element and a backlight unit. The liquid crystal display element includes a color filter having a red filter segment, a green filter segment, and a blue filter segment. The blue filter segment is prepared from a blue photosensitive resin composition. The blue photosensitive resin composition includes a pigment combination, an alkali-soluble resin, a compound having an ethylenic group, and a photoinitiator. The pigment combination includes a copper phthalocyanine-based blue pigment. The color filter has a z value ranging from 0.3 to 0.5 in a chromaticity diagram of a XYZ color system. The backlight unit is coupled to the liquid crystal display element and has a color temperature ranging from 8,000 K to 20,000 K.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: September 15, 2015
    Assignee: CHI MEI CORPORATION
    Inventors: Bo-Hsuan Lin, Jung-Pin Hsu, Chung-En Cheng
  • Patent number: 9040829
    Abstract: A novel method and apparatus for performing the method is disclosed the apparatus comprises a laser (17), at least one ink jet print head (14), means for holding a transparent substrate having a transparent conductive layer, means (22) for adjusting the relative positions of the laser and at least one ink jet print head to the transparent conducting layer (2) and a controller to control the laser and ink jet print head whereby in a first step to inkjet print one or more coarse metal borders (15) onto the deposited TCM layer and in a second step by means of a single laser ablation process, ablating tracks in both the metal border and underlying TCM layer to form a plurality of discrete electrical busbars (12) and optionally also to form electrodes in the remainder of the TCM layer.
    Type: Grant
    Filed: October 23, 2009
    Date of Patent: May 26, 2015
    Assignee: M-SOLV LIMITED
    Inventor: David Charles Milne
  • Patent number: 9022580
    Abstract: This invention realizes an illumination optical system with a small etendue that has a longer lifetime and a high degree of brightness. The invention includes: a laser light source that generates excitation light; a phosphor that generates a fluorescent light by means of the excitation light; a light tunnel that projects the excitation light that is incident at one end towards the phosphor from another end, and projects a fluorescent light generated with the phosphor from the one end; and a dichroic mirror that is provided between the laser light source and the light tunnel, and that allows the fluorescent light or the excitation light to pass through, and reflects the remaining excitation or fluorescent light.
    Type: Grant
    Filed: January 29, 2010
    Date of Patent: May 5, 2015
    Assignee: NEC Display Solutions, Ltd.
    Inventors: Hiroyuki Saitou, Atsushi Katou, Motoyasu Utsunomiya, Akihiro Osaka, Masateru Matsubara
  • Patent number: 9000664
    Abstract: Provided is a phosphor particle group of divalent europium-activated oxynitride green light emitting phosphor particles each of which is a ?-type SiAlON represented by a general formula: EuaSibAlcOdNe, where 0.005?a?0.4, b+c=12, d+e=16, wherein a mean value of a value obtained by dividing a longer particle diameter by a shorter particle diameter is not greater than 1.75. Also provided are a light emitting apparatus using the phosphor particle group in a light converter, and a liquid crystal display television using the light emitting apparatus. With these, a high-efficiency and stable light emitting apparatus using a ?-type SiAlON, and a phosphor particle group therefor are provided.
    Type: Grant
    Filed: April 2, 2010
    Date of Patent: April 7, 2015
    Assignees: Sharp Kabushiki Kaisha, Denki Kagaku Kogyo Kabushiki Kaisha
    Inventors: Tetsuya Hanamoto, Masatsugu Masuda, Kenji Terashima, Hideyuki Emoto, Hironori Nagasaki
  • Patent number: 8976321
    Abstract: The present invention relates to a fluorescent powder mixture, a manufacturing method for the same, and a corresponding liquid crystal display device. The fluorescent powder mixture is a mixture of a conductive powder and a fluorescent powder, wherein the conductive powder is aluminum zinc oxide, gallium zinc oxide, or indium tin oxide. The fluorescent powder mixture, the manufacturing method for the same, and the corresponding liquid crystal display device of the present invention increase the conductivity of the fluorescent powder, and further weaken the electron enrichment phenomenon on the surface of the fluorescent powder, so as to increase the illumination performance of the fluorescent powder.
    Type: Grant
    Filed: June 8, 2012
    Date of Patent: March 10, 2015
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventor: Yewen Wang
  • Publication number: 20150055061
    Abstract: A transflective display includes a substrate, a partially absorbing layer arranged on the substrate, a reflection layer arranged on the partially absorbing layer opposite to the substrate, and an emissive layer arranged on the reflection layer opposite to the partially absorbing layer. The emissive layer includes a plurality of light-emitting elements that emit light of at least one color and a dye of a color other than the at least one color of the plurality of light-emitting elements. The reflection layer is arranged to reflect some light from the emissive layer back into the emissive layer.
    Type: Application
    Filed: March 15, 2013
    Publication date: February 26, 2015
    Inventors: Duncan Robert Johnston, Christopher James Newton Fryer
  • Patent number: 8928837
    Abstract: A circuit substrate including a base layer and a plurality of lead units arranged as an array is provided, wherein the base layer has a plurality of through grooves, and the lead units are disposed on the base layer. Each of the lead units includes a common terminal and at least three leads. The common terminal is capable of being divided into a plurality of electrodes connected with each other. The leads are extended outwards from the edge of the common terminal, and each of the leads is extended outwards from the edge of one of the electrodes. The through grooves expose the common terminals of the lead units.
    Type: Grant
    Filed: August 30, 2011
    Date of Patent: January 6, 2015
    Assignee: Everlight Electronics Co., Ltd.
    Inventor: Wen-Chieh Tsou
  • Patent number: 8908125
    Abstract: A fluorescent substrate (5) of the present invention includes: a fluorescent layer (3) which emits light by receiving excitation light; and a reflecting film (10) being provided both (i) on a side surface(s) of the fluorescent layer (3) and (ii) on a surface of the fluorescent layer (3), on which surface the excitation light is incident, the reflecting film (10) (I) transmitting a component having a peak wavelength of the excitation light, and (II) reflecting a component having a peak wavelength of the light emitted from the fluorescent layer (3).
    Type: Grant
    Filed: January 28, 2011
    Date of Patent: December 9, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Yoshimasa Fujita
  • Patent number: 8906264
    Abstract: The invention relates to compounds of the general formula (I) EA2-xEuxSiO4.aM2B4O7 (I) where EA stands for two or more elements selected from Ca, Sr, Zn and Ba, M stands for Li, Na or K, and a stands for a value from the range 0.01?a?0.08, and x stands for a value from the range 0.01?x?0.25.
    Type: Grant
    Filed: February 24, 2012
    Date of Patent: December 9, 2014
    Assignee: Merck Patent GmbH
    Inventors: Tim Vosgroene, Daniela Degenring, Stefan Schlueter, Sascha Hess, Andrea Opolka, Eric Heiden
  • Patent number: 8902150
    Abstract: A lighting apparatus has a plurality of light emission block group and a detection unit for each light emission block group, wherein light emission blocks selected from different light emission block groups are grouped as sets, and light emission blocks belonging to a same set are caused to emit light simultaneously. The grouping is such that a minimum value, in all the sets, of a detection value ratio becomes as large as possible, wherein the detection value ratio is a ratio between an amount of light due to a light emission from one light emission block belonging to a light emission block group corresponding to each detection unit, and an amount of light due to a light emission from another light emission block emitting light simultaneously with the one light emission block.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: December 2, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventor: Masanao Kurita
  • Patent number: 8902384
    Abstract: A quantum rod light-emitting display device according to an embodiment of the invention includes a display panel including a first substrate, a second substrate opposite to the first substrate, and a quantum rod layer disposed between the first substrate and the second substrate, wherein quantum rods in the quantum rod layer are arranged in one direction; a backlight unit provided under the display panel and configured to provide light to the display panel; and a short-wavelength pass filter film formed between the display panel and the backlight unit, and configured to transmit the light having a predetermined wavelength range.
    Type: Grant
    Filed: October 12, 2012
    Date of Patent: December 2, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Il Jeon, Kyung-Chan Kim, Joong-Pill Park, Moon-Bae Gee, Sung-Hee Cho, Kyung-Kook Jang, Kyung-Seok Jeong
  • Publication number: 20140320788
    Abstract: The invention provides a lighting unit comprising a light source, configured to generate light source light and a luminescent material, configured to convert at least part of the light source light into luminescent material light, wherein the light source comprises a light emitting diode (LED) and wherein the luminescent material comprises a phosphor comprising M2AX6 doped with tetravalent manganese, wherein M comprises monovalent cations, at least comprising potassium and rubidium, wherein A comprises a tetravalent cation, at least comprising silicon, wherein X comprises a monovalent anion, at least comprising fluorine, and wherein M2AX6 has the hexagonal phase.
    Type: Application
    Filed: December 6, 2012
    Publication date: October 30, 2014
    Applicant: KONINKLIJKE PHILIPS N.V.
    Inventors: Volker Weiler, Wolfgang Schnick, Peter Josef Schmidt, Markus Armin Seibald
  • 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: 8830151
    Abstract: Provided are a backlight unit capable of improving light efficiency and acquiring a high-luminance image by implementing a color image without using a color filter having the large light loss and a liquid crystal display including the same. The backlight unit includes: a white light source generating white light, a light guide plate into which the white light is inputted, a blue phosphor sheet formed above the light guide plate and transmitting the white light, and a multi-color phosphor sheet formed on the same plane above the blue phosphor sheet and including a plurality of red phosphor layers, green phosphor layers, and transparent layers which transmit the light transmitted through the blue phosphor sheet.
    Type: Grant
    Filed: February 7, 2012
    Date of Patent: September 9, 2014
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Dong Pyo Kim, Kyu Ha Baek