Liquid Crystal Process, Composition, Or Product Patents (Class 430/20)
  • Patent number: 11297302
    Abstract: A naked-eye stereoscopic display device is provided herein, which includes: a display panel having a plurality of first pixel zones and second pixel zones, the first and second pixel zones are arranged alternately to be adjacent to one another and form an array; and a phase retardation film disposed on a surface of the display panel, the phase retardation film includes first and second retardation regions, each first retardation region has different value of phase retardation and is corresponding to one of the first pixel zones, and each second retardation region has different value of phase retardation and is corresponding to one of the second pixel zones. A naked-eye stereoscopic display system is also provided herein.
    Type: Grant
    Filed: July 3, 2017
    Date of Patent: April 5, 2022
    Assignees: HKC Corporation Limited, Chongqing HKC Optoelectronics Technology Co., Ltd.
    Inventor: Yu-Jen Chen
  • Patent number: 11254785
    Abstract: A process for reducing the amount of hydroxyl-end-groups of a polyester, wherein the polyester is prepared from at least one dicarboxylic acid and at least one dihydroxy alcohol, and at least one additive selected from the group consisting of carboxylic acid anhydride and mono-isocyanate, and wherein the additive is added during a step of prepolycondensation and/or during a step of polycondensation and/or after a step of polycondensation.
    Type: Grant
    Filed: July 6, 2017
    Date of Patent: February 22, 2022
    Assignee: TECHNIP ZIMMER GMBH
    Inventors: Holger Bachmann, Rainer Linke, Eckhard Seidel, Michael Reisen, Reza Sarbandi
  • Patent number: 11187832
    Abstract: A light-shielding film for optical element includes at least a resin and a colorant. The light-shielding film for optical element has an average extinction coefficient of 0.03 or more and 0.15 or less as an average of extinction coefficients of the whole light-shielding film for light having wavelengths ranging from 400 to 700 nm.
    Type: Grant
    Filed: July 9, 2018
    Date of Patent: November 30, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventor: Reiko Kubota
  • Patent number: 10969648
    Abstract: An electrophoretic display device capable of having retention property of electrophoretic particles and exhibiting excellent display characteristics, and an electronic apparatus. The electrophoretic display device includes an element substrate, a counter substrate disposed to face counter substrate, a molecule X provided between the element substrate and the counter substrate, an electrophoretic dispersion liquid containing electrophoretic particles and a dispersion medium, wherein the electrophoretic dispersion liquid is disposed between counter substrate and molecule X, wherein molecule X includes an aromatic ring having a cyclic structure, for example, benzene, toluene, xylene, and the like.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: April 6, 2021
    Assignee: E Ink Corporation
    Inventor: Michio Nakamori
  • Patent number: 10692889
    Abstract: The present invention is related to a field of display technology, and in particular to a thin film transistor array substrate, which comprises a glass substrate, as well as a buffer layer and a pixel structure layer disposed on a first surface of the glass substrate, wherein a plurality of patterned three-dimensional microstructures are formed on the first surface of the glass substrate, and the buffer layer and the first surface are mutually meshed. The present invention also discloses a method of manufacturing the array substrate mentioned above, and a display device comprising the array substrate. The thin film transistor array substrate provided by the present invention improves the light transmittance of the array substrate.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: June 23, 2020
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Guowei Zha
  • Patent number: 10578967
    Abstract: The present application relates to a negative type photosensitive resin composition including a compound of Chemical Formula 1, an alkali soluble resin binder, a polyfunctional monomer, a colorant, a photoinitiator, and a solvent, and a display apparatus including a black bank formed by using the same.
    Type: Grant
    Filed: October 19, 2016
    Date of Patent: March 3, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Dongchang Choi, Kyung Soo Choi, Jung Woo Kim, Hae Jung Kim, Guntee Kim
  • Patent number: 10529274
    Abstract: A display device includes a first substrate including a display region and a drive circuit arranged with a light emitting element having an organic layer including organic materials, a first metal oxide layer above a portion of the display region and a portion of the drive circuit, a first inorganic insulating layer above the display region and the drive circuit and having an opening exposing an upper surface of the first metal oxide layer, an organic insulating layer above the first metal oxide layer and the first inorganic insulating layer, a second metal oxide layer above the organic insulating layer in a region overlapping the first metal oxide layer, a second inorganic insulating layer above the display region and the drive circuit and having an opening exposing an upper surface of the second metal oxide layer, and a second substrate above the second inorganic insulating layer.
    Type: Grant
    Filed: November 16, 2017
    Date of Patent: January 7, 2020
    Assignee: Japan Display Inc.
    Inventor: Yusuke Sasaki
  • Patent number: 10514567
    Abstract: A display panel with microcavities each having ends of asymmetric cross-sectional area. An exemplary display panel has a substrate; a pixel electrode formed on the substrate; a first black matrix and a second black matrix each disposed on the substrate; and a supporting member disposed on the substrate over the pixel electrode and the black matrix, the supporting member shaped so as to form a microcavity between the pixel electrode and the supporting member, the microcavity having an upper surface proximate to the supporting member and a lower surface opposite the upper surface. The microcavity has one end positioned over the first black matrix, and another end opposite the first end and positioned over the second black matrix; the lower surface of the microcavity has first and second channels disposed therein, the first channel positioned over the first black matrix, and the second channel positioned over the second black matrix.
    Type: Grant
    Filed: May 5, 2017
    Date of Patent: December 24, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hee-Keun Lee, Jung Wook Lee, Yeun Tae Kim, Hae Ju Yun
  • Patent number: 10175539
    Abstract: The present application discloses a method of performing photo alignment to a liquid crystal panel and a mask, the method including: disposing a mask in one side of a liquid crystal panel, the mask including at least two regions, the two regions makes incident lights passed and generating emission lights with different polarization directions respectively; making the incident light passed through the mask, to generate the emission lights with different polarization direction, and perform a photo alignment to the different regions of the liquid crystal panel. By the approach above, the process of the photo alignment is changed in the present application, thereby reducing the time of the photo alignment process and increase productivity.
    Type: Grant
    Filed: July 11, 2016
    Date of Patent: January 8, 2019
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventors: Jianjian Ying, Peng Du, Wen Dai
  • Patent number: 10048410
    Abstract: A light-shielding film for optical element includes at least a resin and a colorant. The light-shielding film for optical element has an average extinction coefficient of 0.03 or more and 0.15 or less as an average of extinction coefficients of the whole light-shielding film for light having wavelengths ranging from 400 to 700 nm.
    Type: Grant
    Filed: January 14, 2015
    Date of Patent: August 14, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventor: Reiko Kubota
  • Patent number: 9690010
    Abstract: For providing a resin composition for an optical material which exhibits less change in birefringence due to external force and which is suitable for use in the production of an optical member; an optical film obtained by using the resin composition; and a liquid crystal display device using the same, provided is a resin composition containing a polycarbonate resin (X); and a polyester resin (Y) whose number average molecular weight is 200 to 2,000 and which is represented by General Formula (1): B-(G-A)n-G-B (wherein B represents an aryl monocarboxylic acid residue having 6 to 12 carbon atoms or an aliphatic monocarboxylic acid residue having 1 to 8 carbon atoms.
    Type: Grant
    Filed: September 25, 2014
    Date of Patent: June 27, 2017
    Assignee: DIC CORPORATION
    Inventors: Teppei Ujihara, Yusuke Tajiri, Masato Ishiyama
  • Patent number: 9690013
    Abstract: An object of the present invention is to provide a resin composition that exhibits only a small change in birefringence due to external force and can be suitably used for production of optical members and to provide an optical film obtained by using the resin composition and a liquid crystal display device using the optical film. The provided resin composition for an optical material contains: a polymer (A) obtained by using (meth)acrylic acid or an alkyl(meth)acrylate; and a polyester resin (B). The polyester resin (B) is a polyester resin (B1) that has, in a main chain thereof, an aromatic ring-containing structural unit and has a number average molecular weight of 300 to 5,000, and each end of the main chain is capped with a monocarboxylic acid residue or a monoalcohol residue.
    Type: Grant
    Filed: September 18, 2014
    Date of Patent: June 27, 2017
    Assignee: DIC CORPORATION
    Inventors: Yusuke Tajiri, Takanori Ootsubo
  • Patent number: 9627619
    Abstract: A thin film forming apparatus includes: a thin film source including a thin film on one surface of the thin film source to be transferred to a substrate; and a light emitter configured to apply light energy to the thin film source to transfer the thin film to the substrate.
    Type: Grant
    Filed: January 26, 2015
    Date of Patent: April 18, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Duckjung Lee, Jiyoung Choung, Kyuhwan Hwang
  • Patent number: 9507215
    Abstract: A liquid crystal polymer composition comprising a liquid crystal, acrylic monomers including an acrylic monomer group (A) including a cyclic ring and an acrylic monomer group (B) including a chain structure or a cyclohexanol, and a photo initiator.
    Type: Grant
    Filed: June 27, 2014
    Date of Patent: November 29, 2016
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Wonjin Choi, Geesung Chae, Dongcheon Shin, Jinki Kim, Hyesun Son, Sejin Jang
  • Patent number: 9491275
    Abstract: A service provider for a communications system may detect new contact information for a contact in the contact database of a first one of the subscribers. The service provider obtains a confirmation of the new contact information by a party other than the first subscriber to confirm accuracy of the new contact information. Responsive to detection of the confirmation event, the service provider stores the confirmed contact information in an aggregate contact database including contact data from multiple ones of the plurality of subscribers. The new contact information may include a communications identifier, such as a telephone number, physical address or network address. The new contact information may further include personal information for the contact, such as a photograph, a profile, a weblog, a buddy list, a bookmark and/or a tag, or commercial information associated with the contact, such as a user rating, an advertisement and/or a coupon.
    Type: Grant
    Filed: December 29, 2005
    Date of Patent: November 8, 2016
    Assignees: AT&T Intellectual Property I, L.P., by transfer of ownership from AT&T, Delaware Intellectual Property, Inc.
    Inventor: John Ruckart
  • Patent number: 9309274
    Abstract: A device is presented having reversibly changeable and optically readable optical properties. The device comprises a substrate having an electrically conductive surface and carrying a redox-active layer structure. The redox-active layer structure may be a monolayer or a multi-layer structure and is configured to have at least one predetermined electronic property including at least one of electrodensity and oxidation state. The electronic property of the layer structure defines an optical property of the structure thereby determining an optical response of the structure to certain incident light. This at least one electronic property is changeable by subjecting the redox-active layer structure to an electric field or to a redox-active material. The device thus enables effecting a change in said electronic property that results in a detectable change in the optical response of the layer structure.
    Type: Grant
    Filed: September 17, 2014
    Date of Patent: April 12, 2016
    Assignee: YEDA RESEARCH AND DEVELOPMENT CO. LTD.
    Inventors: Milko E. Van Der Boom, Atindra D. Shukla, David Rosenblatt, Tarkeshwar Gupta
  • Patent number: 9304322
    Abstract: A phase difference element capable of decreasing deterioration of 3D characteristics and a display unit including the phase difference element are provided. The phase difference element includes a phase difference film, and an anti-glare film. The phase difference film has a phase difference layer composed of two or more phase difference regions each having different direction of a slow axis that are regularly arranged in a plane. Retardation of the anti-glare film is 20 nm or less and total haze of the anti-glare film is 30% or less.
    Type: Grant
    Filed: June 24, 2011
    Date of Patent: April 5, 2016
    Assignee: Sony Corporation
    Inventors: Junichi Inoue, Mitsunari Hoshi
  • Patent number: 9201258
    Abstract: A display device includes a substrate and pixels arranged on the substrate in a matrix form. The substrate includes a display area in which the pixels are arranged and a non-display area disposed adjacent to a side of the display area. Each pixel includes a cover layer that extends in a row direction that includes a sidewall portion connected to the substrate and a cover portion spaced apart from the substrate and connected to the sidewall portion to define a tunnel-shaped cavity on the substrate. A width of the sidewall portion between adjacent pixels is less than a width of the sidewall portion disposed at an outermost position, and the cover layer seals one side of the tunnel-shaped cavity in the pixels arranged in a first row and a last row.
    Type: Grant
    Filed: July 18, 2013
    Date of Patent: December 1, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Yeun Tae Kim, Hee-Keun Lee, Jaekeun Lim
  • Patent number: 9122946
    Abstract: In some embodiments, systems for capturing scene images and depth geometry are provided, comprising a projector, an optical sensor, and a digital processing device. The projector is capable of being defocused with respect to a scene and projects light having a shifting periodic illumination pattern on the scene. The optical sensor has a plurality of pixels and detects a portion of the radiance of at least one image of the scene at each of the pixels. The digital processing device is capable of being coupled to the optical sensor and obtains a temporal radiance profile from the radiance over a time period for each of the pixels, determines an amount of projection defocus at each of the of pixels using the temporal radiance profile, and, at each of the pixels, computes a depth to the scene at the pixel using the amount of projection defocus at the pixel.
    Type: Grant
    Filed: January 24, 2007
    Date of Patent: September 1, 2015
    Assignee: The Trustees of Columbia University in the City of New York
    Inventors: Li Zhang, Shree K. Nayar
  • Patent number: 9049345
    Abstract: A method and system for monitoring a display venue are disclosed. One method involves receiving information generated by an audience in response to a request associated with content provided to the audience at a display venue, and determining at least one condition at the display venue based on the information.
    Type: Grant
    Filed: November 4, 2009
    Date of Patent: June 2, 2015
    Assignee: Thomson Licensing
    Inventors: William Gibbens Redmann, Mark J. Huber
  • Publication number: 20150030973
    Abstract: The present invention provides a birefringent lens material for a stereoscopic image display, the birefringent lens material containing two or more liquid crystal compounds each having at least one polymerizable functional group, a birefringent lens for a stereoscopic image display, the birefringent lens being formed by using the lens material, and a method for producing a birefringent lens for a stereoscopic image display using the lens material. The birefringent lens material for a stereoscopic image display and the birefringent lens for a stereoscopic image display of the present invention are good in terms of optical characteristics, durability, and productivity, in particular, productivity. The method for producing a birefringent lens for a stereoscopic image display of the present invention has good productivity.
    Type: Application
    Filed: October 14, 2014
    Publication date: January 29, 2015
    Applicant: DIC CORPORATION
    Inventors: Yasuhiro Kuwana, Hiroshi Hasebe
  • Patent number: 8871315
    Abstract: Optical films are described having a polymerized microstructured surface that comprises the reaction product of a polymerizable resin composition comprising at least one polymerizable ethylenically unsaturated triphenyl monomer. Also described are certain triphenyl(meth)acrylate monomers and polymerizable resin compositions.
    Type: Grant
    Filed: September 10, 2013
    Date of Patent: October 28, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: Bryan V. Hunt, Kyle J. Lindstrom, Judith M. Invie, David B. Olson, Anthony M. Renstrom
  • Patent number: 8865890
    Abstract: A device is presented having reversibly changeable and optically readable optical properties. The device comprises a substrate having an electrically conductive surface and carrying a redox-active layer structure. The redox-active layer structure may be a monolayer or a multi-layer structure and is configured to have at least one predetermined electronic property including at least one of electrodensity and oxidation state. The electronic property of the layer structure defines an optical property of the structure thereby determining an optical response of the structure to certain incident light. This at least one electronic property is changeable by subjecting the redox-active layer structure to an electric field or to a redox-active material. The device thus enables effecting a change in said electronic property that results in a detectable change in the optical response of the layer structure.
    Type: Grant
    Filed: January 16, 2014
    Date of Patent: October 21, 2014
    Assignee: Yeda Research and Development Co., Ltd.
    Inventors: Milko E. Van Der Boom, Atindra D. Shukla, David Rosenblatt, Tarkeshwar Guptar
  • Patent number: 8852853
    Abstract: A photo-mask is capable of preventing stain defects and a method for fabricating a liquid crystal display device using the photo-mask which achieves the same capability. The photo-mask includes a transparent substrate configured to transmit ultraviolet light and a light shielding layer configured to block ultraviolet light on a surface of the transparent substrate. The light shielding layer includes an absorption layer configured to absorb ultraviolet light.
    Type: Grant
    Filed: July 7, 2011
    Date of Patent: October 7, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ki Hoon Kim, Ji-Yong Park, Jin-Suk Park, Sunghyuk Kim, Min-Chang Kim, Kyung Hyun Choi
  • Patent number: 8822127
    Abstract: A photosensitive resin composition for a black matrix and a black matrix formed with the same are provided. The photosensitive resin composition for a black matrix includes a solvent consisting of 5-30 weight % of a first solvent having a boiling point of 110-159° C., 55-90 weight % of a second solvent having a boiling point of 160-200° C., and 3-15 weight % of a third solvent having a boiling point of 201-280° C., and the first solvent, the second solvent, and the third solvent are an aliphatic compound and use at least one solvent composition selected from a group consisting of alkyl ester, alkyl ketone, alkyl ether, and alkyl alcohol, and thus a uniform thin film having no surface defect can be obtained, and the photosensitive resin composition has an excellent process property while securing a high light shielding property and thus a black matrix pattern having a few defect can be obtained, and is thus useful for a liquid crystal display.
    Type: Grant
    Filed: September 28, 2009
    Date of Patent: September 2, 2014
    Assignee: LG Chem, Ltd.
    Inventors: Dong Chang Choi, Kyung Soo Choi, Ho Chan Ji, Geun Young Cha, Sung-Hyun Kim
  • Publication number: 20140212798
    Abstract: A method of tilting liquid crystal molecules is presented. The method entails providing a substrate including a photoalignment layer on top of a layer of liquid crystal molecules. The photoalignment layer is exposed to patterned light that is incident on the substrate at a substantially normal angle. The patterned light is polarized in a polarization direction that is non-parallel to an incident surface of the substrate.
    Type: Application
    Filed: January 25, 2013
    Publication date: July 31, 2014
    Applicant: KENT STATE UNIVERSITY
    Inventor: Hiroshi YOKOYAMA
  • Patent number: 8758976
    Abstract: The present invention relates to a positive photosensitive polyimide composition that includes polyimide, a polyamic acid, and a photoactive compound. An organic insulating layer for organic light-emitting devices (OLED), which includes the positive photosensitive polyimide composition, may control a taper angle and outgassing, and has excellent adhesion in respects to a substrate, water repellent control ability, and storage stability and the like.
    Type: Grant
    Filed: March 6, 2009
    Date of Patent: June 24, 2014
    Assignee: LG Chem Ltd.
    Inventors: Hye-Ran Seong, Chan-Hyo Park, Dong-Hyun Oh, Hye-In Shin, Kyung-Jun Kim, Se-Jin Shin
  • Patent number: 8748068
    Abstract: A method of producing a patterned birefringent product, comprising at least steps [1] to [3] in this order: [1] producing a birefringent pattern building material comprising at least one optically anisotropic layer, which is formed by a process including: coating and drying a composition containing at least one rod-like liquid crystalline compound having at least two reactive groups and at least one chiral agent to form a cholesteric liquid crystal phase; and then subjecting the cholesteric liquid crystal phase to heating or exposure to radiation to form the optically anisotropic layer containing a polymer fixed by polymerization and fixing; [2] subjecting the birefringent pattern building material to a patterned exposure to light; and, [3] baking a laminate obtained after the step [2] at 50° C. or higher and 400° C. or lower.
    Type: Grant
    Filed: July 30, 2010
    Date of Patent: June 10, 2014
    Assignee: FUJIFILM Corporation
    Inventors: Hideki Kaneiwa, Ichiro Amimori
  • Patent number: 8722879
    Abstract: A device is presented having reversibly changeable and optically readable optical properties. The device comprises a substrate having an electrically conductive surface and carrying a redox-active layer structure. The redox-active layer structure may be a monolayer or a multi-layer structure and is configured to have at least one predetermined electronic property including at least one of electrodensity and oxidation state. The electronic property of the layer structure defines an optical property of the structure thereby determining an optical response of the structure to certain incident light. This at least one electronic property is changeable by subjecting the redox-active layer structure to an electric field or to a redox-active material. The device thus enables effecting a change in said electronic property that results in a detectable change in the optical response of the layer structure.
    Type: Grant
    Filed: March 5, 2007
    Date of Patent: May 13, 2014
    Assignee: Yeda Research & Development Company Ltd. at the Weizmann Institute of Science
    Inventors: Milko E. Van Der Boom, Atindra D. Shukla, David Rosenblatt, Tarkeshwar Gupta
  • Patent number: 8703253
    Abstract: The present invention relates to a composition for liquid crystal alignment layer, a preparation method of liquid crystal alignment layer using the same, and an optical film comprising the liquid crystal alignment layer. More particularly, the composition for liquid crystal alignment layer according to the present invention includes crosslinkable functional monomers as well as a photoreactive polymer, thereby improving thermal stability and durability of the liquid crystal alignment layer that is prepared by using the composition for liquid crystal alignment layer. In addition, when the liquid crystal alignment layer is used to produce an optical film, adhesive strength between substrate and liquid crystal alignment layer and between liquid crystal alignment layer and liquid crystal film can be improved.
    Type: Grant
    Filed: January 19, 2009
    Date of Patent: April 22, 2014
    Assignee: LG Chem, Ltd.
    Inventors: Du-Hyun Shin, Hyuk Yoon, Moon-Soo Park
  • Patent number: 8704977
    Abstract: The invention provides a liquid crystal cell and method thereof. The cell comprises two opposed substrates and a surfactant-free lyotropic chromonic liquid crystals (LCLC) material disposed therebetween. By using an ammonium compound with LCLC or surface treatment on the substrates, the alignment of the LCLC material can be manipulated as a homeotropic bulk alignment; or a hybrid bulk alignment in which the LCLC alignment is changed from homeotropic bulk alignment in the vicinity of one substrate to planar alignment in the vicinity of another substrate. The cell can be used in biosensing, detection and amplification of ligands, optical devices, and photovoltaics etc.
    Type: Grant
    Filed: March 5, 2008
    Date of Patent: April 22, 2014
    Assignee: Kent State University
    Inventors: Oleg D. Lavrentovich, Yuriy A. Nastyshyn, Vassili G. Nazarenko, Roman M. Vasyuta, Oleksandr P. Boiko, Ye Yin, Sergij V. Shiyanovskii
  • Publication number: 20140106267
    Abstract: A method of forming an image having multiple phases is disclosed herein. The method includes forming exposed and unexposed areas, the exposed areas comprising a first polymer network exhibiting first and second phases that are chemically connected and have different refractive indices, the first phase being continuous, and the second phase comprising a plurality of structures dispersed within the first phase, and the unexposed areas comprising a second polymer network comprising third and fourth phases that are chemically connected and have different refractive indices, the third phase being continuous, and the fourth phase comprising a plurality of structures dispersed within the third phase. The first and second polymer networks are chemically connected, and morphology formed by the first and second phases is different than that formed by the third and fourth phases.
    Type: Application
    Filed: December 18, 2013
    Publication date: April 17, 2014
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Mieczyslaw H. Mazurek, Raymond P. Johnston, John E. Potts, Marc D. Radcliffe, Kevin R. Schaffer, Audrey A. Sherman, Wendi J. Winkler
  • Patent number: 8691349
    Abstract: A liquid crystal display panel including a first substrate, a second substrate, a liquid crystal layer, and a polymer stabilized alignment layer is provided. The second substrate is disposed opposite to the first substrate. The liquid crystal layer is disposed between the first substrate and the second substrate. The polymer stabilized alignment layer is disposed between the first substrate and the liquid crystal layer, and an average surface roughness of the polymer stabilized alignment layer is greater than or equal to 10 nm.
    Type: Grant
    Filed: December 7, 2012
    Date of Patent: April 8, 2014
    Assignee: Au Optronics Corporation
    Inventors: Cheng-Jung Chiang, Chih-Ho Chiu, Chung-Ching Hsieh, Chia-Hsuan Pai, Bo-Hsin Huang, Te-Sheng Chen
  • Publication number: 20140057200
    Abstract: Embodiments of the present invention disclose a method for producing a masterboard alignment film, and a transfer printing plate and an alignment solution. The method comprises coating the alignment solution on a masterboard having two or more substrates using the transfer printing plate which has a transfer region simultaneously covering the two or more substrates, so that the alignment solution forms an alignment film on the masterboard; and removing the alignment film on the masterboard which is located in regions that are out of the display regions of the substrates and where there is no need to retain the alignment film. This method can solve the existing display defect issues that are caused by too thick peripheral regions of the alignment film, and the overlapping of the too thick peripheral regions of the alignment film with the sealant region.
    Type: Application
    Filed: September 28, 2012
    Publication date: February 27, 2014
    Applicant: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Haiyun Lin, Chengtan Zhao, Hui Li, Jingpeng Li
  • Patent number: 8647529
    Abstract: A liquid crystal drop apparatus for dropping liquid crystal on a substrate includes a liquid crystal container filled with liquid crystal, a nozzle formed at an lower end of the liquid crystal container for dropping the liquid crystal of the liquid crystal container, and a control unit for controlling the nozzle when the nozzle drops the liquid crystal.
    Type: Grant
    Filed: September 11, 2009
    Date of Patent: February 11, 2014
    Assignee: LG Display Co., Ltd.
    Inventor: Young Suk Kim
  • Patent number: 8637226
    Abstract: A method of forming an image having multiple phases is disclosed herein. The method includes forming exposed and unexposed areas, the exposed areas comprising a first polymer network exhibiting first and second phases that are chemically connected and have different refractive indices, the first phase being continuous, and the second phase comprising a plurality of structures dispersed within the first phase, and the unexposed areas comprising a second polymer network comprising third and fourth phases that are chemically connected and have different refractive indices, the third phase being continuous, and the fourth phase comprising a plurality of structures dispersed within the third phase. The first and second polymer networks are chemically connected, and morphology formed by the first and second phases is different than that formed by the third and fourth phases.
    Type: Grant
    Filed: February 8, 2012
    Date of Patent: January 28, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: Mieczyslaw H. Mazurek, Raymond P. Johnston, John E. Potts, Marc D. Radcliffe, Kevin R. Schaffer, Audrey A. Sherman, Wendi J. Winkler
  • Patent number: 8603723
    Abstract: The present invention relates to an image transfer process. The process includes the steps of: a) providing an image carrying device including at least one photoluminescent surface; b) displaying a luminous image on a display surface of a light-emitting medium; and c) positioning the display surface of the light-emitting medium that is displaying the luminous image at a distance from the at least one photoluminescent surface of the image carrying device shorter than a predetermined effective distance, for a predetermined period of time.
    Type: Grant
    Filed: January 26, 2011
    Date of Patent: December 10, 2013
    Assignees: Taiwan Textile Research Institute, Gixia Innovation Co., Ltd.
    Inventors: Hsi-Wen Chang, Wei-Jen Lai, Pi-Ju Chiang, Chun-Hung Lin, Jung Ya Hsieh
  • Publication number: 20130316274
    Abstract: A phase difference layer laminated body used in a three-dimensional liquid crystal display device, wherein unit cells are divided into groups for left and right eyes, which are given different degrees of polarization, thereby creating a three-dimensional image, further wherein the phase difference layer laminated body has a base material having orientability, and a phase difference layer made of a liquid crystal material that can form a nematic phase and formed in a pattern with two different portions, and the liquid crystal material in each of two different portions is oriented to have different refractive index anisotropy each other that conforms to the two different degrees of polarization and fixed as it is.
    Type: Application
    Filed: July 30, 2013
    Publication date: November 28, 2013
    Applicant: DAI NIPPON PRINTING CO., LTD.
    Inventor: Keiji KASHIMA
  • Publication number: 20130308085
    Abstract: According to the present invention, provided is a birefringent transfer foil, comprising a temporary support, an orientation layer, a birefringent layer (preferably a patterned optically anisotropic layer) formed from a composition comprising a liquid-crystal compound having at least one reactive group, said orientation layer being in contact with the temporary support or a releasing layer, wherein the releasing layer being in contact with the temporary support, and said orientation layer being a layer comprising a cellulose alkyl ether or a hydroxyalkyl derivative of cellulose alkyl ether. In the birefringent transfer foil of the present invention, the above orientation layer also functions as a protective layer and a detachment layer, enabling to reduce the manufacturing cost.
    Type: Application
    Filed: August 2, 2013
    Publication date: November 21, 2013
    Applicant: FUJIFILM Corporation
    Inventors: Reona IKEDA, Yuuya YAMAMOTO, Hideaki ITOU
  • Patent number: 8541150
    Abstract: A manufacturing method of a polymer film with the photonic crystal structure includes a mixing step for at least mixing an achiral liquid crystal (LC), a chiral dopant, a monomer and a photo initiator together to form an LC-monomer mixture, at least one exposure step for exposing the LC-monomer mixture through a mask, at least one diffusion step for diffusing the monomer from the area around one of the exposure areas to the exposure area, and a LC removing step for removing the achiral LC to form the polymer film. By implementing the diffusion step after the exposure step, the polymerization rate of the monomers is enhanced so as to increase the proportion of the polymer in the polymer film and raise the imprint rate of chirality. Therefore, the polymer film can reveal stronger photonic crystal structure and property of Bragg reflection when it is not filled with any fluid.
    Type: Grant
    Filed: March 16, 2011
    Date of Patent: September 24, 2013
    Assignee: National Cheng Kung University
    Inventor: Jui-Hsiang Liu
  • Publication number: 20130164661
    Abstract: A method for making a retardation film includes: (a) forming a photo-alignment layer on a substrate; (b) exposing the photo-alignment layer such that first and second regions of the alignment surface are oriented in a first alignment direction; (c) disposing a patterned mask over the photo-alignment layer such that the first regions of the alignment surface are shielded; (d) exposing the second regions such that the second regions are oriented in a second alignment direction, and the first regions remain oriented in the first alignment direction; (e) coating liquid crystal molecules over the alignment surface; and (f) curing the liquid crystal molecules.
    Type: Application
    Filed: September 14, 2012
    Publication date: June 27, 2013
    Applicant: FAR EASTERN NEW CENTURY CORPORATION
    Inventors: Chien-Cheng Chang, Chiu-Fang Chen, Da-Ren Chiou, Wei-Che Hung
  • Patent number: 8431682
    Abstract: The invention relates to regioregular polyselenophenes, to their use as semiconductors or charge transport materials, in optical, electro-optical or electronic devices, and to optical, electro-optical or electronic devices comprising them.
    Type: Grant
    Filed: October 30, 2006
    Date of Patent: April 30, 2013
    Assignee: Merck Patent GmbH
    Inventors: Martin Heeney, Warren Duffy, Iain McCulloch, Simon Higgins, David Crouch, Peter Skabara
  • Patent number: 8394487
    Abstract: A birefringent pattern builder, having an optically anisotropic layer containing a polymer having unreacted reactive groups, wherein the optically anisotropic layer is produced by a method containing the steps [1] and [2] in this order: [1] coating and drying a solution containing a liquid crystalline compound having at least two kinds of reactive groups; and [2] reacting one kind of the at least two kinds of reactive groups by applying heat or irradiating ionizing radiation.
    Type: Grant
    Filed: May 20, 2009
    Date of Patent: March 12, 2013
    Assignee: FUJIFILM Corporation
    Inventors: Hideki Kaneiwa, Ichiro Amimori
  • Patent number: 8337965
    Abstract: A sealant for a one drop fill process of the invention contains the following components (1), (2), (3), and (4): (1) a curing agent composed of a reaction product produced by reacting an acid compound and a polyamine containing, within its molecule, at least one active hydrogen and at least two nitrogen atoms; (2) a heat-curable resin; (3) an acylphosphine-based photoinitiator; and (4) a photo-curable resin. A heat-curable resin containing a bisphenol A propylene oxide-modified epoxy resin is preferably used as the heat-curable resin (2), and a photo-curable resin containing a bisphenol A acrylate-modified resin is preferably used as the photo-curable resin (4).
    Type: Grant
    Filed: January 5, 2010
    Date of Patent: December 25, 2012
    Assignee: Adeka Corporation
    Inventors: Kazuyuki Itano, Hiroya Fukunga, Hirokatsu Shinano, Rieko Hamada, Takahiro Otsuka
  • Patent number: 8325319
    Abstract: A method for manufacturing a liquid crystal display panel includes applying a first frame-like sealing material, and a second sealing material adjacent to the first sealing material along at least one side of the first sealing material, on a first mother substrate; forming a spacer on a second mother substrate made of glass so as to extend between the first and second sealing materials; bonding the first mother substrate on which the first and second sealing materials are applied, and the second mother substrate on which the spacer is formed, to each other such that the first and second sealing materials are in contact with each other without gaps with the spacer being interposed therebetween, and that a liquid crystal layer is sealed within the frame defined by the first sealing material; and cutting the bonded mother substrates at an intermediate position in the width direction of the spacer.
    Type: Grant
    Filed: December 23, 2009
    Date of Patent: December 4, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Tazo Ikeguchi
  • Patent number: 8269358
    Abstract: A bis(aminophenol) derivative having substituents at positions adjacent to two amino groups is provided. The bis(aminophenol) derivative is used as a raw material of a polyamide resin for a positive-tone photosensitive resin composition. A polyamide resin comprising bis(aminophenol) and a structure derived from a carboxylic acid is also provided, the bis(aminophenol) having substituents at positions adjacent to the two amino groups. A positive-tone photosensitive resin composition comprising a polybenzooxazole precursor resin, exhibiting high sensitivity and a high cyclization rate even when cured at a low temperature is provided. Also provided is a positive-tone photosensitive resin composition comprising a polyamide resin having an imide structure, an imide precursor structure, or an amide acid ester structure. The composition exhibits high sensitivity and produces a cured product having low water absorption even when cured at a low temperature.
    Type: Grant
    Filed: October 23, 2007
    Date of Patent: September 18, 2012
    Assignee: Sumitomo Bakelite Company Limited
    Inventor: Koji Terakawa
  • Patent number: 8263188
    Abstract: Provided is a composition for a photo-alignment film includes a compound expressed by the following general formula (I) and a compound expressed by the following general formula (II):
    Type: Grant
    Filed: March 19, 2009
    Date of Patent: September 11, 2012
    Assignee: FUJIFILM Corporation
    Inventor: Michitaka Matsuumi
  • Patent number: 8253898
    Abstract: A novel transfer material is disclosed. The transfer material comprises, at least, a support, and, thereon, an optically uniaxial or biaxial anisotropic layer and a photosensitive polymer layer. A novel process for producing a liquid crystal cell substrate is also disclosed. The process comprises, at least, [1] laminating a transfer material as set forth in any one of claims 1 to 11 on a substrate; [2] removing the support from the transfer material laminated on the substrate; and [3] exposing the photosensitive polymer layer disposed on the substrate to light.
    Type: Grant
    Filed: March 29, 2006
    Date of Patent: August 28, 2012
    Assignee: FUJIFILM Corporation
    Inventors: Ichiro Amimori, Wakahiko Kaneko, Satomi Suzuki, Hideki Kaneiwa
  • Patent number: 8231946
    Abstract: The present invention relates to a photoreactive norbornene polymer comprising a photoreactive norbornene monomer, a process for preparing the same, and an alignment layer using the same. The photoreactive norbornene polymer includes a photoreactive functional group having a halogen, in particular, a fluorine substituent group so that it gives a compositional gradient in the alignment layer to improve an orientation rate, an orientation, and an adhesion property.
    Type: Grant
    Filed: August 3, 2011
    Date of Patent: July 31, 2012
    Assignee: LG Chem, Ltd.
    Inventors: Dong-Woo Yoo, Sung-Ho Chun, Dai-Seung Choi, Young-Chul Won
  • Patent number: 8231806
    Abstract: The present invention relates to dielectrically positive liquid-crystalline media comprising in each case one or more compounds of the formula I in which the parameters have the respective meanings indicated in the specification, and optionally one or more further dielectrically positive compounds and optionally one or more further dielectrically neutral compounds, and to liquid-crystal displays containing these media, especially to active-matrix displays and in particular to TN, IPS and FFS displays.
    Type: Grant
    Filed: February 25, 2009
    Date of Patent: July 31, 2012
    Assignee: Merck Patent Gesellschaft mit beschränkter Haftung
    Inventors: Markus Czanta, Michael Wittek, Lars Lietzau, Marcus Reuter, Brigitte Schuler