Microencapsulated Or Polymer Dispersed Liquid Crystal Patents (Class 349/86)
  • Patent number: 10890806
    Abstract: The present application relates to a transmittance variable film, a method for producing the same, and a use thereof. The transmittance variable film of the present application can solve the drive unevenness phenomenon by adjusting the pre-tilt of the opposite alignment film of the alignment film to which the ball spacer is fixed to minimize the reverse tilt occurring upon on-off driving. The transmittance variable film of the present application can be used as sunroofs.
    Type: Grant
    Filed: July 27, 2017
    Date of Patent: January 12, 2021
    Inventors: Jung Woon Kim, Su Young Ryu, Byoung Kun Jeon, Moon Soo Park
  • Patent number: 10782569
    Abstract: The present disclosure provides a display panel and a display device, the display panel includes a frame glue, an alignment mark, and a blocking wall, and the blocking wall is defined between the alignment mark and the frame glue.
    Type: Grant
    Filed: January 23, 2019
    Date of Patent: September 22, 2020
    Assignees: HKC Corporation Limited, Chongqing HKC Optoelectronics Technology Co., Ltd.
    Inventor: Yunqin Hu
  • Patent number: 10732480
    Abstract: According to one embodiment, a product is a mixture including a solvent and generally spherical colloidal nanoparticles, the colloidal nanoparticles each having a core and a shell surrounding the core, and an electrode. In addition, the mixture is characterized as having a transparency to light in a predetermined wavelength range, where the transparency increases as a voltage of the electrode increases.
    Type: Grant
    Filed: June 28, 2017
    Date of Patent: August 4, 2020
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Jinkyu Han, Megan Carey Freyman, Thomas Han
  • Patent number: 10705400
    Abstract: A reflecting cell including at least two substrates each covered by an electrode and facing each other, the substrates delimitating between them a volume which separates them and which is filled with a bistable liquid crystal-type material with a threshold field, for example a cholesteric liquid crystal, both electrodes being intended to be connected to a voltage source. This cell is characterized in that at least one of the electrodes is formed by associating a pattern, which does not entirely cover the surface of the substrate considered, and a conducting layer which covers the surface of the substrate considered, the conductivity of the material of the layer being lower than that of the material of the pattern.
    Type: Grant
    Filed: October 22, 2015
    Date of Patent: July 7, 2020
    Assignees: NEXTER SYSTEMS, INSTITUT MINES TELECOM-IMT ATLANTIQUE-BRETAGNE-PAYS DE LA LOIRE
    Inventors: Laurent Dupont, Suman Manna
  • Patent number: 10663781
    Abstract: According to an embodiment of the present disclosure, a display device includes a light source, a first substrate on the light source, a liquid crystal layer on the first substrate, and a second substrate on the liquid crystal layer, wherein the first substrate or the second substrate includes a base substrate, an insulating layer on the base substrate, and partially defining a first cavity and a second cavity having openings facing different directions, a first quantum dot in the first cavity, a second quantum dot in the second cavity, and a cover layer covering the openings of the first and second cavities.
    Type: Grant
    Filed: October 24, 2017
    Date of Patent: May 26, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Si Kwang Kim, Joo Young Yoon, Seung Yeon Chae
  • Patent number: 10663833
    Abstract: In accordance with a version of the invention, graphene with a ferroelectric material is used as the transparent electrode material in an electrochromic device. The use of curved and dynamically flexing substrates enables flexible and stretchable applications for electrochromic films. Furthermore, the nonreactive and impermeable nature of graphene increases the durability of the device through increased resistance to external impurities. In addition, the incorporation of ferroelectric materials allows the device to exhibit nonvolatile usage; that is, devices can remain transparent with no external power source. Furthermore, devices may exhibit a charging effect, permitting recovery of energy stored in alignment of ferroelectric dipoles within the ferroelectric material.
    Type: Grant
    Filed: November 6, 2014
    Date of Patent: May 26, 2020
    Assignee: National University of Singapore
    Inventors: Barbaros Özyilmaz, Eeshan Sandeep Kulkarni, Iñigo Martin Fernandez, Chee Tat Toh, Antonio Helio Castro Neto
  • Patent number: 10655062
    Abstract: A liquid crystal composition having one or more compounds represented by formula I, one or more compounds represented by formula II and one or more compounds represented by formula III: The liquid crystal composition has a good stability against light and heat and a lower viscosity, and can achieve a wider refractive index and higher clearing point by the adjustment the ratio of the monomers. In particular, the liquid crystal composition has a higher light transmittance, allowing a display device to have a higher brightness or an energy saving effect.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: May 19, 2020
    Assignee: SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIAL CO., LTD
    Inventors: Ke-Lun Shu, Mingxia Wang, Huan Liu, Wenxiao Xing, Zhengqiang Li, Yiping Wang, Yongfeng Bao, Guoliang Yun
  • Patent number: 10620541
    Abstract: A mask plate, an exposure system and an exposure method are disclosed. The mask plate includes a control unit (10) and a liquid crystal cell (20), wherein the control unit (10) is electrically connected to the liquid crystal cell (20) and configured to control the liquid crystal cell (20) to render a mask pattern. The mask plate can fulfill the requirements for various mask patterns, which not only save the manufacturing cost, but also simplifies the process operation.
    Type: Grant
    Filed: August 2, 2016
    Date of Patent: April 14, 2020
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Guojing Ma, Changjian Xu, Dan Wang, Jinyu Ren
  • Patent number: 10578942
    Abstract: The present disclosure relates to device, and operation method and manufacturing method thereof, wherein the device comprises a dichroic dye composite layer, a first liquid crystal display (LCD) composite layer, a wide waveband reflective composite layer and an organic light emitting diode (OLED) composite layer stacked in this order, wherein the dichroic dye composite layer is switchable between a black state and a transparent state, the liquid crystal display (LCD) composite layer is switchable between a display state, a transparent state and a dark state, the wide waveband reflective composite layer is switchable between a transparent state and a mirror state, and the organic light emitting diode (OLED) composite layer is switchable between a light-emitting state and a transparent state.
    Type: Grant
    Filed: January 9, 2018
    Date of Patent: March 3, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Miki Kashima
  • Patent number: 10537037
    Abstract: An electronic device including a display module, a circuit module and a housing is provided. The housing accommodates the display module and the circuit module and includes a transparent cover, a multi-layer stacked structure and a tinted layer. At least a part of the transparent cover presents a curve. The multi-layer stacked structure is disposed on an inner surface of the transparent cover and has a plurality of optical layers stacked in sequence. The tinted layer is disposed on the multi-layer stacked structure. Through the disposition of the multi-layer stacked structure, the housing has variable visual effects.
    Type: Grant
    Filed: January 5, 2018
    Date of Patent: January 14, 2020
    Assignee: HTC Corporation
    Inventors: Tzu-Wen Hsu, Yu-Hsuan Chiu
  • Patent number: 10534223
    Abstract: A display panel includes an upper substrate on which a transparent organic material layer is formed. Holes are formed in the transparent organic material layer to expose portions of a top surface of the upper substrate to respectively define red, green, blue, and while sub pixel recesses, in which mixtures of red, green, and blue quantum dots with PDLC and PDLC are disposed. A lower substrate includes a TFT layer and a pixel electrode layer formed thereon. The pixel electrode layer includes a plurality of pixel electrodes. The upper and lower substrate are combined together with border adhesive provided therebetween such that the pixel electrodes are respectively corresponding to the red, green, blue, and white sub pixel recesses.
    Type: Grant
    Filed: April 19, 2018
    Date of Patent: January 14, 2020
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Chao Ma
  • Patent number: 10527881
    Abstract: The present application discloses a method of fabricating a color filter substrate, including forming a black matrix layer including forming a plurality of black matrices on a base substrate thereby defining a plurality of subpixel areas, the plurality of black matrices being formed to have a plurality of pores; dispensing a first color filter material in a plurality of first subpixel areas of the plurality of subpixel areas thereby forming a first color filter material layer, the first color filter material permeating into pores of black matrices adjacent to the plurality of first subpixel areas; and forming a first color filter layer. Subsequent to forming the first color filter layer, the first color filter material remains in at least a first portion of the black matrices adjacent to the plurality of first subpixel areas.
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: January 7, 2020
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Chengpeng Yao, Huan Ni, Xinxia Zhang, Xiaolong Xie, Qun Li, Xiao Guo
  • Patent number: 10478717
    Abstract: Augmented reality and physical game techniques are described. In one or more implementations, an indication is received by a computing device of a location of a physical gaming piece of a game. An augmentation is computed based on the indication by the computing device to be displayed as part of the game. The augmentation is displayed by the computing device on a display device that is at least partially transparent such that a physical portion of the game is viewable through the display device concurrently with the augmentation.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: November 19, 2019
    Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC
    Inventors: Steven John Robbins, William J. Westerinen, Lisa M. Hanson, Sung Ho Son, Richard J. Wattles
  • Patent number: 10429694
    Abstract: According to one embodiment, a display device comprises first and second substrate having light transmissivity and opposing each other, a light-modulating layer arranged between the first substrate and the second substrate, a light source unit which illuminates the light-modulating layer from an outer side of a position which opposes a display area, along a normal direction, first to third color filters of different colors arranged on the first substrate, and first to third electrodes which oppose the first to third color filters, respectively, the light-modulating layer being able to change light dispersibility of each of regions which oppose the first to third color filters according to the electric field produced by each respective one of the first to third electrodes.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: October 1, 2019
    Assignee: Japan Display Inc.
    Inventors: Tatsuya Yata, Kentaro Okuyama
  • Patent number: 10409116
    Abstract: Provided are a method for manufacturing a light emitting apparatus, the light emitting apparatus, and a window. The method for manufacturing the light emitting apparatus includes preparing a liquid crystal device including a support substrate, a first electrode, a liquid crystal layer, and a sacrificial structure, separating the sacrificial structure from the liquid crystal layer to expose one surface of the liquid crystal layer, and forming a second electrode on the one surface of the liquid crystal layer.
    Type: Grant
    Filed: July 20, 2017
    Date of Patent: September 10, 2019
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Gi Heon Kim, Sujung Kim, Yong Hae Kim, Chi-Sun Hwang
  • Patent number: 10401266
    Abstract: In a first aspect, the invention relates to the use of a UV-polymerizable composition as an embedding medium for biological samples. The UV-polymerizable composition is a composition with a refractive index ranging from n=1.45 to n=1.6 after a polymerization process. In another aspect, the invention relates to a method for producing embedded biological samples using said UV-polymerizable composition and to the embedded biological samples themselves. The biological samples can be used in a wide variety of areas, such as diagnostics among others, and are suitable in particular for RNA-based diagnostics.
    Type: Grant
    Filed: June 19, 2015
    Date of Patent: September 3, 2019
    Assignee: Laser Zentrum Hannover e.V.
    Inventors: Mark Kuehnel, Manuela Kellner, Danny Jonigk, Nicole Izykowski, Heiko Meyer, Raoul-Amadeus Lorbeer, Marko Heidrich
  • Patent number: 10344212
    Abstract: One aspect is contemplated for providing a device having a liquid crystal material exhibiting a dielectric constant of 1000 or more at a temperature at which a specific liquid crystal phase is developed, and a unit configured to apply voltage to the liquid crystal material at the temperature at which the specific liquid crystal phase is developed.
    Type: Grant
    Filed: February 15, 2017
    Date of Patent: July 9, 2019
    Assignees: KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION, JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventors: Hirotsugu Kikuchi, Yasushi Okumura, Hiroki Higuchi, Hiroya Nishikawa, Kazuya Shiroshita, Shinichi Yamamoto, Koki Sago, Yasuhiro Haseba
  • Patent number: 10228600
    Abstract: A light controlling apparatus includes first and second substrates facing each other; a first electrode on the first substrate; a second electrode on the second substrate; and a liquid crystal layer between the first electrode and the second electrode, the liquid crystal layer including cholesteric liquid crystals, wherein the cholesteric liquid crystals have a focal conic state in a light shielding mode in case where no voltage is applied, and have a homeotropic state in a transparent mode in case where a voltage is applied.
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: March 12, 2019
    Assignee: LG Display Co., Ltd.
    Inventors: Ki Han Kim, Ji Young Ahn, Moon Sun Lee, Pu Reum Kim, Seok Won Ji
  • Patent number: 10209571
    Abstract: A curved liquid crystal display (“LCD”) includes a thin film transistor (“TFT”) array substrate, a counter substrate facing the TFT array substrate, a liquid crystal layer including liquid crystal molecules of negative dielectric anisotropy and disposed between the TFT array substrate and the counter substrate, a liquid crystal alignment layer disposed between the liquid crystal layer and the counter substrate, a liquid crystal alignment base layer disposed between the liquid crystal layer and the TFT array substrate, and a liquid crystal alignment stabilization layer including projections spaced apart from each other on the liquid crystal alignment base layer between the liquid crystal layer and the liquid crystal alignment base layer, wherein the projections include reactive mesogen polymers, and one of the liquid crystal alignment layer and the liquid crystal alignment base layer includes the reactive mesogen polymers.
    Type: Grant
    Filed: August 23, 2016
    Date of Patent: February 19, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hyeok Jin Lee, Oh Jeong Kwon, Jin Won Kim, Dong Han Song, Ki Chul Shin, Taek Joon Lee
  • Patent number: 10191318
    Abstract: Disclosed is a transparent display device in which a light shield rate is not lowered by partition walls in a light shield mode, and moreover, a light transmittance is not lowered in a transmissive mode. The transparent display device includes a transparent display panel including a plurality of transmissive areas transmitting incident light and a plurality of emissive areas emitting light, and a light control device disposed on a rear surface of the transparent display panel. The light control device is configured to be driven in a transmissive mode where the incident light is transmitted and a light shield mode where the incident light is blocked.
    Type: Grant
    Filed: August 30, 2016
    Date of Patent: January 29, 2019
    Assignee: LG Display Co., Ltd.
    Inventors: Sunyoung Park, JiYoung Ahn, Moonsun Lee, Jae-Hyun Kim, Pureum Kim, Kihan Kim, Seokwon Ji
  • Patent number: 10181577
    Abstract: Provided are an encapsulation film, an organic electronic device comprising the same, and a method of manufacturing the organic electronic device. When the organic electronic device is encapsulated using the encapsulation film, an excellent moisture barrier property may be realized, and as reflection or scattering of light is prevented by absorbing and blocking internal or external light, external defects of the organic electronic device may be prevented.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: January 15, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Ban Seok Choi, Hyun Jee Yoo, Hyun Suk Kim, Seung Min Lee, Jung Ok Moon, Se Woo Yang
  • Patent number: 10162206
    Abstract: Provided herewith is a liquid crystal display device comprising a substrate; first and second electrodes on a first surface of the substrate, the first and second electrodes being spaced apart from each other; a liquid crystal capsule layer on the first and second electrodes; and a dielectric layer on the liquid crystal capsule layer. In this liquid crystal display device the dielectric constant of the dielectric layer is lower than the dielectric constant of the liquid crystal capsule layer.
    Type: Grant
    Filed: November 29, 2016
    Date of Patent: December 25, 2018
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Min-Geon Choi, Kyeong-Jin Kim, Kyung-Su Ha
  • Patent number: 10126583
    Abstract: Embodiments relate to transparent display apparatus including a transparent display panel. The transparent display panel includes a plurality of transmissive areas transmitting incident light and a plurality of emissive areas emitting light and a light control device disposed on one surface of the transparent display panel to execute a transmissive mode, where incident light is transmitted, and a light shield mode where incident light is blocked. The light control device includes a first substrate and a second substrate facing each other, a liquid crystal cell provided between the first substrate and the second substrate, and a partition wall maintaining a cell gap of the liquid crystal cell. The partition wall has a honeycomb structure, and a plurality of column spacers are disposed between partition walls.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: November 13, 2018
    Assignee: LG Display Co., Ltd.
    Inventors: Sunyoung Park, JiYoung Ahn
  • Patent number: 10096797
    Abstract: Provided are an encapsulation film, an organic electronic device comprising the same, and a method of manufacturing the organic electronic device. When the organic electronic device is encapsulated using the encapsulation film, an excellent moisture barrier property may be realized, and as reflection or scattering of light is prevented by absorbing and blocking internal or external light, external defects of the organic electronic device may be prevented.
    Type: Grant
    Filed: February 17, 2015
    Date of Patent: October 9, 2018
    Assignee: LG Chem, Ltd.
    Inventors: Ban Seok Choi, Hyun Jee Yoo, Hyun Suk Kim, Seung Min Lee, Jung Ok Moon, Se Woo Yang
  • Patent number: 10067370
    Abstract: A polymeric dispersed liquid crystal light shutter device and system and method for forming the same are disclosed. In one embodiment of the system, a catoptric form having a shape is subjacently positioned below a pre-cure or un-cured polymer dispersed liquid crystal (PDLC) light shutter device having liquid crystals dispersed in a polymer binder system between two substrates. Light is applied during curing. The liquid crystal microdroplet sizes vary according to the shape of the catoptric form such that domains of smaller liquid crystal microdroplet sizes correspond to the shape and domains of larger liquid crystal microdroplet sizes correspond to negative space relative to the shape. Upon tuning an electric field, the PDLC light shutter device changes states from presenting a surface having an image formed by non-scattering regions contrasted against opaque scattering regions, to a surface characterized by mostly or entirely clear, non-scattering light transmittance.
    Type: Grant
    Filed: March 17, 2016
    Date of Patent: September 4, 2018
    Assignee: Polytronix, Inc.
    Inventors: Menting Tim Tsai, Casey S. Hunt, Robert Northrup
  • Patent number: 10067396
    Abstract: A liquid crystal display includes: a display panel including first and second substrates opposite to each other, and a liquid crystal layer disposed between the first and second substrates; a reflective polarizer disposed outside the first substrate; and a backlight unit disposed outside the first substrate to provide light to the display panel, where the liquid crystal layer includes liquid crystal molecules and dichroic dye molecules, and the liquid crystal layer has a first arrangement state in which the liquid crystal molecules and the dichroic dye molecules are arranged at random.
    Type: Grant
    Filed: August 29, 2016
    Date of Patent: September 4, 2018
    Assignee: SAMSUNG DISPLAY CO. LTD.
    Inventors: Dong Han Song, Su Jin Kim, Ki Chul Shin, Dong Chul Shin
  • Patent number: 10025015
    Abstract: A wire grid polarizer (WGP) can have a phosphonate conformal-coating to protect the WGP from at least one of the following: corrosion, dust, and damage due to tensile forces in a liquid on the WGP. The conformal-coating can include a chemical: where R1 can include a hydrophobic group, Z can include a bond to the ribs, and R5 can be any suitable chemical element or group. A method of applying a phosphonate conformal-coating over a WGP can include exposing the WGP to (R1)iPO(R4)j(R5)k, where: i is 1 or 2, j is 1 or 2, k is 0 or 1, and i+j+k=3; each R1 can independently include a hydrophobic group; R4 can include a phosphonate-reactive-group; each R6 can independently include an alkyl group, an aryl group, or combinations thereof; and each R5, if any, can independently be any suitable chemical element or group.
    Type: Grant
    Filed: June 5, 2017
    Date of Patent: July 17, 2018
    Assignee: Moxtek, Inc.
    Inventors: Matt Linford, Anubhav Diwan, Fred Lane, Stew Nielson, Ted Wangensteen
  • Patent number: 10018875
    Abstract: A curved liquid crystal display comprises, a first curved substrate; a second curved substrate facing the first curved substrate; a liquid crystal layer disposed between the first curved substrate and the second curved substrate; a first curved liquid crystal alignment layer disposed between the liquid crystal layer and the first curved substrate and containing a light stabilizer; and a second curved liquid crystal alignment layer disposed between the liquid crystal layer and the second curved substrate.
    Type: Grant
    Filed: January 20, 2016
    Date of Patent: July 10, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ji Hong Bae, Heung Shik Park, Keun Chan Oh
  • Patent number: 9995958
    Abstract: A wide viewing angle liquid crystal display includes color filters having a quantum dot and scattering particles and liquid crystal layer disposed in a microcavity, a distance between the color filter and the liquid crystal layer being sized to minimize display deterioration due to parallax.
    Type: Grant
    Filed: April 27, 2017
    Date of Patent: June 12, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jae Byung Park, Sung Sik Yun, Jong Hyuk Kang, Hae Il Park, Hyun Min Cho
  • Patent number: 9976081
    Abstract: A dual frequency liquid crystal may be stabilized in the blue phase by a polymer matrix to provide an improved blue phase temperature range having a magnitude of at least about 65° C. Polymer-stabilized, blue phase dual frequency liquid crystal compositions and methods for producing polymer-stabilized, blue phase dual frequency liquid crystals are disclosed.
    Type: Grant
    Filed: April 28, 2013
    Date of Patent: May 22, 2018
    Assignee: EAST CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventor: Zhigang Zheng
  • Patent number: 9929377
    Abstract: A light emitting device having a structure in which oxygen and moisture are prevented from reaching light emitting elements, and a method of manufacturing the same, are provided. Further, the light emitting elements are sealed by using a small number of process steps, without enclosing a drying agent. The present invention has a top surface emission structure. A substrate on which the light emitting elements are formed is bonded to a transparent sealing substrate. The structure is one in which a transparent second sealing material covers the entire surface of a pixel region when bonding the two substrates, and a first sealing material (having a higher viscosity than the second sealing material), which contains a gap material (filler, fine particles, or the like) for protecting a gap between the two substrates, surrounds the pixel region. The two substrates are sealed by the first sealing material and the second sealing material.
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: March 27, 2018
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Takeshi Nishi, Yasuo Nakamura
  • Patent number: 9911795
    Abstract: The present invention discloses a pixel unit, which comprises a pixel defining layer defining a pixel region, a first electrode within a central area of the pixel region, an organic-light-emitting-display-device functional layer formed within the pixel region and on the first electrode, and a second electrode formed on the organic-light-emitting-display-device functional layer, an area of a bottom plane of the organic-light-emitting-display-device functional layer being larger than that of an upper surface of the first electrode. The pixel defining layer comprises first and second pixel defining portions having ring-shaped structures, the first pixel defining portion has an inner side surface defining the pixel region, and the second pixel defining portion has an outer side surface in contact with the inner side surface of the first pixel defining portion, and is disposed around the first electrode. The first pixel defining portion has a thickness greater than the second pixel defining portion.
    Type: Grant
    Filed: October 20, 2015
    Date of Patent: March 6, 2018
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Wenjun Hou, Ze Liu
  • Patent number: 9863923
    Abstract: Methods and compositions for detecting a targeted analyte, such as volatile organic compound (VOCs), are disclosed. Specifically, a cholesteric liquid crystal composition comprising a nematic liquid crystal and a chiral dopant transitions to a liquid crystal blue phase or undergoes other optical changes when in contact with a sample containing the analyte. The phase transition can be readily detected with the naked eye. The disclosed methods and compositions may be used in, for example, dosimeters for detecting analyte (e.g., VOC) exposure. Methods and compositions for producing arrays of liquid crystal thin films are also disclosed. The surface between the microwells in a microwell array is coated with a liquid-crystal-phobic material, such as a fluorinated polymer or a fluorinated silane, creating isolated microwell domains that are preferentially wetted by liquid crystal. Liquid crystal can be added to the microwell domains by simple techniques such as spin coating.
    Type: Grant
    Filed: December 16, 2015
    Date of Patent: January 9, 2018
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: Nicholas L. Abbott, Marco Antonio Bedolla Pantoja, Xiaoguang Wang
  • Patent number: 9863599
    Abstract: The present invention discloses a lighting device provided with an electronic lamp cover (30) surrounding a light emitting component (20). The electronic lamp cover (30) can present different light transmitting states according to different voltage values applied thereto within an operation voltage range so as to change the illumination angle and illumination brightness of the illumination light of the lighting device.
    Type: Grant
    Filed: October 1, 2014
    Date of Patent: January 9, 2018
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Wenbo Li, Yanbing Wu, Yefei Dong
  • Patent number: 9851489
    Abstract: The present disclosure relates to a viewing angle switchable back light unit in which the general mode and the privacy mode in a liquid crystal display can be selected. The present disclosure suggests a thin film type back light unit comprising: a light guide film including a light entering part disposed at one side, a light changing part disposed at other side and a light guiding part connecting the light entering part and the light changing part; a light radiating part disposed on an upper surface of the light guide film; and a light source disposed at the light entering part of the light guide film. The light entering part includes a wedge light coupler and a light deflection element. The light changing part includes a light reflecting pattern. The light radiating part includes a light radiating film providing some of the collimated lights as back lights.
    Type: Grant
    Filed: June 16, 2016
    Date of Patent: December 26, 2017
    Assignees: LG Display Co., Ltd., Covestro Deutschland AG
    Inventors: Hyungseok Bang, Seungman Ryu, Joobong Hyun, Friedrich-Karl Bruder
  • Patent number: 9827586
    Abstract: The present invention relates to methods and apparatus to provide coated microbubbles, particularly but not exclusively microbubbles at least partially coated with a component, for example a clinically active component. Systems of the present invention use electromagnetic fields to move microbubbles between streams of liquids in order to perform coating or washing steps.
    Type: Grant
    Filed: July 3, 2013
    Date of Patent: November 28, 2017
    Assignee: University of Leeds
    Inventors: Stephen Evans, Sally Peyman, Jonathan Blockley
  • Patent number: 9823504
    Abstract: The present invention provides a method for manufacturing a PDLC display device and a PDLC display device. The method for manufacturing a PDLC display device according to the present invention includes mixing PDLC with graphene nanoparticles to improve the response speed of the PDLC and reduce a driving voltage of the PDLC, and also combines QDs to make a novel high color saturation display device, which requires no alignment layer and polarizer, providing a simple manufacturing process, showing an innovated and unique displaying effect, demonstrating at least four displaying modes of red, green, blue, and indistinctness, and overcoming light leakage of pixels and color mixture occurring in an existing PDLC display device.
    Type: Grant
    Filed: December 24, 2015
    Date of Patent: November 21, 2017
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Chao Ma
  • Patent number: 9766553
    Abstract: The disclosure provides an illumination optical unit for projection lithography, which illuminates an object field with illumination light. The illumination optical unit includes a field facet mirror with a plurality of field facets and a pupil facet mirror with a plurality of pupil facets. The field facets are imaged in the object field by a transfer optical unit. The pupil facet mirror includes a pupil facet mirror polarization section and a pupil facet mirror neutral section. The polarization section is arranged so that the illumination light is reflected in the region of a Brewster angle. The neutral section is arranged so that the illumination light is reflected in the region of a normal incidence.
    Type: Grant
    Filed: August 20, 2015
    Date of Patent: September 19, 2017
    Assignee: Carl Zeiss SMT GmbH
    Inventor: Manfred Maul
  • Patent number: 9726959
    Abstract: A color filter array is provided in an electro-optic display by ink jet printing a plurality of colored areas (22R, 22G, 22B) on one surface of a layer of electro-optic material (12), an adhesive layer or a protective layer. Alternatively, the ink jet printing may be effected on the same layers in various sub-assemblies used to produce electro-optic displays.
    Type: Grant
    Filed: September 23, 2015
    Date of Patent: August 8, 2017
    Assignee: E Ink Corporation
    Inventors: Thomas H. Whitesides, Andrew Y. Oleson, Guy M. Danner, Richard J. Paolini, Jr., Charles Howie Honeyman
  • Patent number: 9651847
    Abstract: An electrophoretic insulated glass unit (IGU) comprises an electrophoretic laminate and a pane spaced apart from the electrophoretic laminate, the respective inner faces of the laminate and the pane defining a sealed cavity there between. An outer face of the electrophoretic laminate is in contact with an environment. One inner face of the cavity has a coating that is transparent to visible light and which rejects infrared light greater than a cut-off wavelength.
    Type: Grant
    Filed: May 16, 2014
    Date of Patent: May 16, 2017
    Assignee: Vlyte Innovations Limited
    Inventor: Donal O'Keeffe
  • Patent number: 9638928
    Abstract: An active diffuser for reducing a speckle in accordance with an embodiment of the present invention includes: an electroactive polymer film having at least one or more scattering patterns; a first transparent electrode coated on one surface of the electroactive polymer film; and a second transparent electrode coated on the other surface of the electroactive polymer film, and a shape of the scattering pattern of the electroactive polymer film is varied by voltage applied through the first transparent electrode and the second transparent electrode.
    Type: Grant
    Filed: January 30, 2014
    Date of Patent: May 2, 2017
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUE
    Inventors: Sun-Tak Park, Bong-Je Park, Ki-Uk Kyung, Sung-Ryul Yun, Sae-Kwang Nam
  • Patent number: 9627456
    Abstract: An organic light-emitting display apparatus includes: a display substrate; at least one thin film transistor (TFT) on the display substrate; an organic light-emitting diode (OLED) electrically connected to the TFT, the OLED including: a first electrode on each sub-pixel on the display substrate; an intermediate layer on the first electrode; and a second electrode on the intermediate layer; an encapsulation substrate covering the OLED; a filler filling a space between the display substrate and the encapsulation substrate, the filler including scatterers having optical anisotropy; and a color filter between the encapsulation substrate and the filler, the color filter including a color filter electrode at a surface of the color filter.
    Type: Grant
    Filed: August 11, 2015
    Date of Patent: April 18, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventor: Seongsik Park
  • Patent number: 9588369
    Abstract: The present application relates to a liquid crystal cell, a method for preparing a liquid crystal cell and a display device. An exemplary liquid crystal cell may be applied to various types of display devices so as to control a viewing angle or light transmittance of the display device.
    Type: Grant
    Filed: June 6, 2014
    Date of Patent: March 7, 2017
    Assignee: LG CHEM, LTD.
    Inventors: Sung Joon Min, Dong Hyun Oh, Jun Won Chang, Kyung Jun Kim, Hye Won Jeong, Moon Soo Park
  • Patent number: 9570709
    Abstract: The present invention relates to a method for manufacturing an ultrathin organic light-emitting device and, more specifically, to a method for manufacturing an ultrathin organic light-emitting device capable of dramatically reducing the thickness thereof, in addition to improving light extraction efficiency.
    Type: Grant
    Filed: July 16, 2014
    Date of Patent: February 14, 2017
    Assignee: Corning Precision Materials Co., Ltd.
    Inventors: Joo Young Lee, Eun Ho Choi, Hyun Hee Lee
  • Patent number: 9470950
    Abstract: An assembly useful for producing an encapsulated electrophoretic display is prepared from an electrophoretic medium comprising a plurality of discrete droplets (904) in a polymeric binder (906), each droplet comprising a plurality of charged particles dispersed in a fluid, and a front sub-assembly comprising a light-transmissive electrically-conductive layer (902) and a color filter array (920). The electrophoretic medium is laminated to the front-assembly (902, 920) at a temperature at which the polymeric binder (906) will flow and secure the electrophoretic medium to the front sub-assembly to form the final assembly, with the light-transmissive electrically-conductive layer (902) disposed between the color filter array (920) and the electrophoretic medium (904, 906).
    Type: Grant
    Filed: November 6, 2015
    Date of Patent: October 18, 2016
    Assignee: E Ink Corporation
    Inventors: Richard J. Paolini, Jr., Thomas Henry Whitesides
  • Patent number: 9459488
    Abstract: The present invention provides a liquid crystal display device in which a decrease in the voltage holding ratio (VHR) of a liquid crystal layer and an increase in the ion density (ID) are prevented and problems of display defects such as white streaks, alignment unevenness, and image sticking are overcome. The liquid crystal display device of the present invention in which a decrease in the voltage holding ratio (VHR) of a liquid crystal layer and an increase in the ion density (ID) are prevented and problems of display defects such as image sticking are overcome is particularly useful for active matrix driving liquid crystal display devices with an IPS mode and an FFS mode and can be applied to liquid crystal display devices of liquid crystal televisions, monitors, cellular phones, and smart phones.
    Type: Grant
    Filed: February 21, 2013
    Date of Patent: October 4, 2016
    Assignee: DIC CORPORATION
    Inventors: Takeshi Kuriyama, Jouji Kawamura, Akira Kimura, Seiji Funakura, Katsunori Shimada
  • Patent number: 9459509
    Abstract: An electrochromic structure, a method and a display apparatus. The electrochromic structure includes a display layer including a first substrate (9), a color layer (7) and a second substrate (5); and a background layer including a controllable layer (3) and a third substrate (1); and the display layer is over the background layer. The electrochromic structure has clear hierarchy and simple structure, and can be made into display devices of larger size.
    Type: Grant
    Filed: November 13, 2013
    Date of Patent: October 4, 2016
    Assignee: BOE Technology Group Co., Ltd.
    Inventor: Xin Gu
  • Patent number: 9454030
    Abstract: The disclosed technology involves a polymer dispersed liquid crystal film including: a first base substrate, a second base substrate, and a polymer dispersed liquid crystal film between the first base substrate and the second base substrate, wherein a first transparent conductive layer is formed on the first base substrate, the first transparent conductive layer is contacted with the first light permeable pressure-sensitive adhesive layer, and the polymer dispersed liquid crystal is adhered to the first base substrate through the first light permeable pressure-sensitive adhesive layer; and a second transparent conductive layer is formed on the second base substrate, the second transparent conductive layer is contacted with the second light permeable pressure-sensitive adhesive layer, and the polymer dispersed liquid crystal is adhered to the second base substrate through the second light permeable pressure-sensitive adhesive layer.
    Type: Grant
    Filed: December 28, 2011
    Date of Patent: September 27, 2016
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Wenbo Li, Zhuo Zhang, Wang Hu, Chunyan Xie, Gang Wang
  • Patent number: 9436032
    Abstract: There is provided a liquid crystal display device that includes a liquid crystal composition and a color filter having a particular slope parameter that indicates the degree of aggregation of an organic pigment. The liquid crystal display device prevents a decrease in the voltage holding ratio (VHR) and an increase in the ion density (ID) in a liquid crystal layer and resolves the problems of display defects, such as white streaks, variations in alignment, and image sticking. The liquid crystal display device prevents a decrease in the voltage holding ratio (VHR) and an increase in the ion density (ID) in a liquid crystal layer and suppressing display defects such as image sticking. Therefore, the liquid crystal display device is useful for active matrix driving liquid crystal display devices with an IPS mode or an FFS mode and can be applied to liquid crystal display devices.
    Type: Grant
    Filed: December 24, 2013
    Date of Patent: September 6, 2016
    Assignee: DIC CORPORATION
    Inventors: Takeshi Kuriyama, Jouji Kawamura, Junichiro Koike, Hiroshi Maki, Masami Shishikura, Ryosuke Asami
  • Patent number: 9410085
    Abstract: The present invention provides a liquid crystal blend having a higher perpendicular dielectric constant, as well as a liquid crystal display panel and a liquid crystal display device comprising the liquid crystal blend. Since the liquid crystal blend of the present invention contains negative liquid crystal material and has a perpendicular dielectric constant between 3.5 to 4.5, it can improve the transmittance of the liquid crystal layer obtained thereby, compared with the liquid crystal blend without negative liquid crystal material, while other relative properties thereof such as clearing point, response time of the display obtained therefrom, and image sticking at high temperature can also meet the requirements of liquid crystal devices.
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: August 9, 2016
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Chang Xie