Color Patents (Class 349/97)
  • Patent number: 11189669
    Abstract: A display apparatus includes a first substrate and a second substrate opposing to the first substrate. The first substrate includes a transmission area in which a shutter unit is disposed and an emission area in which an organic light emitting diode is disposed. The shutter unit includes a first shutter electrode, a second shutter electrode, and a shutter layer interposed between the first and second shutter electrodes. The organic light emitting diode includes a pixel electrode, a common electrode, and a light-emitting layer interposed between the pixel and common electrodes. At least one of the first and second shutter electrodes is connected to the common electrode of the organic light emitting diode.
    Type: Grant
    Filed: May 6, 2020
    Date of Patent: November 30, 2021
    Inventors: Jae-Hyun Kim, Jin-Oh Kwag, Yong-Kyu Jang
  • Patent number: 11137638
    Abstract: The present invention provides a liquid crystal display device which suppresses a color change of light leak depending on a direction in the visual recognition from an oblique direction during black display, and has high display quality. The liquid crystal display device includes, in order, at least: a first polarizer; an optically anisotropic layer a liquid crystal cell; and a second polarizer, the liquid crystal cell has pixels with a screen resolution of 250 ppi or more, the pixels each have at least blue, green, and red subpixels, the subpixel has a chevron structure in which an angle formed between at least one side and an absorption axis of the first polarizer or an absorption axis of the second polarizer is larger than 0° and not larger than 5°, and a depolarization degree of the liquid crystal cell in a visible light region satisfies a predetermined requirement.
    Type: Grant
    Filed: March 2, 2021
    Date of Patent: October 5, 2021
    Assignee: FUJIFILM Corporation
    Inventors: Naoyoshi Yamada, Tatsuya Iwasaki, Katsufumi Ohmuro
  • Patent number: 10656459
    Abstract: A color polarizing film including a polymer and a dichroic dye having an absorption wavelength region of about 380 nm to about 780 nm, wherein the color polarizing film exhibits a maximum absorption wavelength (?max) in a wavelength range of about 380 nm to about 780 nm is provided.
    Type: Grant
    Filed: February 17, 2017
    Date of Patent: May 19, 2020
    Assignees: SAMSUNG ELECTRONICS CO., LTD., SAMSUNG SDI CO., LTD.
    Inventors: Deuk Kyu Moon, Yong Joo Lee, Boreum Jeong, Myungsup Jung
  • Patent number: 10324333
    Abstract: A color polarizing film including a first layer including a first polymer and a first dichroic dye having an absorption wavelength region of about 380 nm to about 780 nm and a second layer including a second polymer and a second dichroic dye having an absorption wavelength region of about 380 nm to about 780 nm, wherein the second layer is disposed on the first layer, wherein a polarization axis of the first layer and a polarization axis of a second layer cross each other, and wherein the color polarizing film exhibits a maximum absorption wavelength (?max) in a wavelength range of about 380 nm to about 780 nm.
    Type: Grant
    Filed: February 17, 2017
    Date of Patent: June 18, 2019
    Assignees: SAMSUNG ELECTRONICS CO., LTD., SAMSUNG SDI CO., LTD.
    Inventors: Deuk Kyu Moon, Yong Joo Lee, Yoon-suk Kang, Junghoon Lee, Boreum Jeong, Jonghyun Ha, Myungsup Jung
  • Patent number: 9835901
    Abstract: An embodiment of the present invention discloses a reflective type display device, relating to the technical field of display. The liquid crystal display device is relatively thin and light, with low energy consumption. The reflective type display device comprises a polarizer, a transparent first substrate, a liquid crystal molecular layer and a second substrate arranged in sequence; wherein the reflective type display device further comprises: a selective reflecting layer located between the liquid crystal molecular layer and the second substrate; the selective reflecting layer reflects light with wavelength within a specific wavelength range.
    Type: Grant
    Filed: April 27, 2015
    Date of Patent: December 5, 2017
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Xiongcan Zuo, Junrui Zhang
  • Patent number: 9606395
    Abstract: Provided is a set of polarizing plates comprising a front-plate-integrated polarizing plate to be disposed at a viewing side of a liquid crystal cell and a back-side polarizing plate to be disposed at a back side of the cell. The front-plate-integrated polarizing plate includes a front-side polarizing plate and a front plate having a Young's modulus of 2 GPa or more. The set of polarizing plates satisfies the formula: (Ra?Ft)<(Fa?Rt), where Fa and Ft represent ratios of dimensional change observed in the front-side polarizing plate in absorption and transmission axis directions, respectively, after the front-side polarizing plate is heated at 85° C. for 100 hours, and Ra and Rt represent ratios of dimensional change observed in the back-side polarizing plate in absorption and transmission axis directions, respectively, after the back-side polarizing plate is heated at 85° C. for 100 hours.
    Type: Grant
    Filed: September 29, 2014
    Date of Patent: March 28, 2017
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventor: Takahito Kawamura
  • Patent number: 9557463
    Abstract: There is provided an optical film including an acrylic resin, wherein a tensile elastic modulus in a machine direction, which is abbreviated as an MD direction, and a tensile elastic modulus in a direction perpendicular to the machine direction, which is abbreviated as a TD direction, satisfy the relationship of Equation (1): Tensile Elastic Modulus in the MD Direction/Tensile Elastic Modulus in the TD Direction>1.36??Equation (1).
    Type: Grant
    Filed: March 6, 2014
    Date of Patent: January 31, 2017
    Assignee: FUJIFILM CORPORATION
    Inventors: Makoto Ishiguro, Shusuke Arita
  • Patent number: 9172877
    Abstract: There is provided an image pickup unit capable of suppressing occurrence of false color and color mixture and acquiring a color image with high image quality. The image pickup unit includes: an image sensor including a plurality of pixels and acquiring an image pickup data; a variable filter provided on a light receiving face of the image sensor, and transmitting a selective wavelength; and a filter drive section (a wavelength selection circuit and a system control section) driving the variable filter and thereby setting its transmission wavelength. By acquiring the image pickup data while time-divisionally switching the transmission wavelength of the variable filter, pixel data corresponding to the transmission wavelength of the variable filter are acquired in a temporally-successive manner.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: October 27, 2015
    Assignee: Sony Corporation
    Inventor: Rui Morimoto
  • Patent number: 9164313
    Abstract: To provide a display device having a high contrast ratio by a simple and easy method and to manufacture a high-performance display device at low cost, in a display device having a display element between a pair of light-transmitting substrates, layers each including a polarizer having different wavelength distribution of extinction coefficient from each other with respect to the absorption axes are stacked and provided on an outer side of the light-transmitting substrates. Further, a retardation plate may be provided between the stacked polarizers.
    Type: Grant
    Filed: November 9, 2010
    Date of Patent: October 20, 2015
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Yuji Egi, Tetsuji Ishitani, Takeshi Nishi
  • Patent number: 9030740
    Abstract: Photochromic-dichroic articles are provided, which include a substrate having a first surface, a fixed-polarized layer over the first surface of the substrate, and a photochromic-dichroic layer over the first surface of the substrate. The fixed-polarized layer optionally includes a fixed-colorant and has a first polarization axis. The photochromic-dichroic layer includes a photochromic-dichroic compound that is laterally aligned within the photochromic-dichroic layer, and which defines a second polarization axis. The first polarization axis and the second polarization axis are oriented relative to each other at an angle of greater than 0° and less than or equal to 90°. The photochromic-dichroic articles can provide, for example, increased optical density and/or increased kinetics when exposed to a given amount of actinic radiation.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: May 12, 2015
    Assignee: Transitions Optical, Inc.
    Inventors: Rachel L. DeMeio, Anil Kumar, John S. Ligas, Truman Wilt, Delwin S. Jackson, Henry Nguyen
  • Patent number: 8964012
    Abstract: A display panel and a display apparatus are provided. The display panel includes first and second substrates which are disposed opposite to each other and a liquid crystal layer formed in between; a color filter polarizing layer which is formed on one surface between the first and second substrates; and a polarizing layer. The color filter polarizing layer comprises a first metal linear grid arranged at different pitches to emit a first polarized component of incident light with different colors, and a second metal linear grid formed on an opposite surface of the one surface between the first and second substrates. The provided display panel and display apparatus, have reduced manufacturing costs and a simplified manufacturing process.
    Type: Grant
    Filed: August 12, 2011
    Date of Patent: February 24, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seong-eun Chung, Dong-hwan Kim, Il-yong Jung
  • Patent number: 8957863
    Abstract: A user interface (200) for a portable electronic device (100) is configured to transition from a first state to a second state to present a plurality of mode-based user actuation targets to a user. The user interface (200) includes a segmented electro-optical device (407) configured to open and close shutters, thereby revealing and hiding the user actuation targets. The user interface includes a first polarizer (401) disposed above the segmented electro-optical device (407) and a colored reflective polarizer (405) disposed beneath the segmented electro-optical device. The colored reflective polarizer (405), which may include a colored dichroic polarizer (601) and a reflective polarizer (602), causes the user interface (200) to exhibit a predetermined color.
    Type: Grant
    Filed: May 22, 2009
    Date of Patent: February 17, 2015
    Assignee: Google Technology Holdings LLC
    Inventors: Robert D. Polak, David M. Emig
  • Patent number: 8896921
    Abstract: A wire grid type polarization structure is disclosed. In one aspect, the polarization structure includes a retardation layer and a plurality of nanowires formed on the retardation layer. Each of the nanowires includes a wire core and a shell enclosing the wire core. The wire cores include metal nanoparticles embedded therein. The metal nanoparticles may absorb the visible lights effectively, so that the wire grid type polarization structure may have a desired polarization characteristic.
    Type: Grant
    Filed: April 19, 2013
    Date of Patent: November 25, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventor: Hyun-Shik Lee
  • Patent number: 8879028
    Abstract: The LCD sequentially comprises, from bottom to top, a backlight module, a first polarizer, a first substrate, a liquid crystal layer, a second substrate, and a second polarizer. The second substrate comprises plural transparent areas thereon. The first substrate comprises plural light-focusing arrays. Each of the light-focusing arrays comprises plural high-refractive areas and low-refractive areas disposed between the high-refractive areas. The plural high-refractive areas comprises a first high-refractive area and plural second high-refractive area disposed on two sides of the high-refractive areas symmetrically, wherein the widths of the second high-refractive areas are the same and smaller than the width of the first high-refractive area.
    Type: Grant
    Filed: July 28, 2011
    Date of Patent: November 4, 2014
    Assignee: AU Optronics Corporation
    Inventors: Pei-Hsun Wu, Ying-Che Lan, Chih-Haw Wang, Szu-Han Li, Keng-Ju Liu
  • Patent number: 8866995
    Abstract: A liquid crystal display (LCD) device is disclosed, which comprises a liquid crystal panel which can be displayed in any other color instead of a black color during a non-driving mode through the use of one-color film for selectively reflecting light with a predetermined wavelength. The LCD device comprises a backlight unit for supplying light to a liquid crystal panel including lower and upper substrates; a first polarizing plate formed between the lower substrate and the backlight unit; a second polarizing plate formed on the upper substrate; a passivation substrate for protecting the lower and upper substrates; and a one-color film for selectively reflecting light with a predetermined wavelength during a non-driving mode of the backlight unit.
    Type: Grant
    Filed: May 10, 2010
    Date of Patent: October 21, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Jong Beom Lee, Jong Won Moon, Hye Rin Hyun
  • Patent number: 8865275
    Abstract: A light absorption anisotropic film, wherein content of a liquid crystalline non-colorable low molecular weight compound is 30% by mass or less; and which is obtained by fixing the alignment of a dichroic dye composition comprising at least one type of azo-based dichroic dye having nematic liquid crystallinity; and shows a diffraction peak derived from a periodic structure in a direction parallel to the alignment axis on measurement of X-ray diffraction. The light absorption anisotropic film is high in dichroism.
    Type: Grant
    Filed: March 28, 2011
    Date of Patent: October 21, 2014
    Assignee: Fujifilm Corporation
    Inventors: Shinichi Morishima, Nobutaka Iwahashi
  • Patent number: 8848141
    Abstract: A display panel and a display apparatus having the same are provided. The display panel includes a liquid crystal layer and comprises first and second substrates which are disposed opposite to each other; a color filter polarizing layer which formed on one surface between the first and second substrates, and which includes a first metal linear grid arranged at different pitches to emit a first polarized component of incident light with different colors; and a polarizing layer which includes a second metal linear grid formed on an opposite surface to the surface between the first and second substrates, wherein a metal material contained in the first metal linear grid is different from a metal material contained in the second metal linear grid. The provided display panel and display apparatus including the same, have decreased manufacturing costs and a simplified manufacturing process.
    Type: Grant
    Filed: August 12, 2011
    Date of Patent: September 30, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seong-eun Chung, Dong-hwan Kim, Il-yong Jung, Tae-bae Kim
  • Publication number: 20140253849
    Abstract: The disclosure generally relates to beamsplitters useful in color combiners, and in particular color combiners useful in small size format projectors such as pocket projectors. The disclosed beamsplitters and color combiners include a tilted dichroic reflective polarizer plate having at least two dichroic reflective polarizers tilted at different angles relative to incident light beams, with light collection optics to combine at least two colors of light.
    Type: Application
    Filed: October 23, 2012
    Publication date: September 11, 2014
    Inventors: Yarn Chee Poon, Andrew J. Ouderkirk, Philip E. Watson, Xiaohui Cheng, Kim Leong Tan, Stephen J. Willett
  • Patent number: 8809893
    Abstract: The present invention relates to a vertical/horizontal light-emitting diode for a semiconductor.
    Type: Grant
    Filed: November 16, 2009
    Date of Patent: August 19, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Pun Jae Choi, Sang Bum Lee, Jin Bock Lee, Yu Seung Kim, Sang Yeob Song
  • Publication number: 20140218628
    Abstract: [Object] A polarizing element and polarizing plate having improved optical properties and durability.
    Type: Application
    Filed: September 5, 2012
    Publication date: August 7, 2014
    Applicants: POLATECHNO CO., LTD., NIPPON KAYAKU KABUSHIKI KAISHA
    Inventor: Noriaki Mochizuki
  • Publication number: 20140211131
    Abstract: A transparent liquid crystal display device includes: first and second substrates facing and spaced apart from each other; a polarizing plate over an outer surface of the first substrate; first and second electrodes and a passivation layer between the first and second electrodes over an inner surface of the first substrate, the first electrode having a plate shape, the second electrode having a shape of bars; a third electrode over an inner surface of the second substrate; at least one color filter over an outer surface of the second substrate, the at least one color filter including a colored dichroic dye material; and a liquid crystal layer between the first and second substrate, the liquid crystal layer including a liquid crystal material and a black dichroic dye material.
    Type: Application
    Filed: May 15, 2013
    Publication date: July 31, 2014
    Inventors: Jung-Min Choi, Kyoung-Ho Park, Gi-Dong Lee
  • Patent number: 8773620
    Abstract: An optical film in accordance with one embodiment comprises a stack having a plurality of basic pairs each constructed by stacking first and second layers. The number of stacks, the refractive index difference |?ni| in a predetermined direction between the first and second layers, the thicknesses of the first and second layers, and the number of basic pairs are set such that a reflection spectrum formed by the optical film conforms to a target reflection spectrum. The target reflection spectrum is a spectrum having a reflection peak region including a spectrum region having a reflectance of at least 50% within a predetermined wavelength width, in a reflection spectrum of a first polarized light in a wavelength range of 400 to 700 nm, while exhibiting a reflectance of 20% or less in a reflection spectrum of a second polarized light within the wavelength range.
    Type: Grant
    Filed: April 10, 2012
    Date of Patent: July 8, 2014
    Assignee: Sumitomo Chemical Company, Limited
    Inventor: Saswatee Banerjee
  • Patent number: 8760604
    Abstract: A polarizing element includes a plurality of polarizing sections, wherein a first polarizing section included in the plurality of polarizing sections has a first base material and a plurality of first acicular particles dispersed in the first base material such that long axes of the first acicular particles are aligned in substantially the same direction, a second polarizing section included in the plurality of polarizing sections has a second base material and a plurality of second acicular particles dispersed in the second base material such that long axes of the second acicular particles are aligned in substantially the same direction, and the specification of the first acicular particles is different from that of the second acicular particles.
    Type: Grant
    Filed: June 28, 2012
    Date of Patent: June 24, 2014
    Assignee: Seiko Epson Corporation
    Inventors: Daisuke Sawaki, Noriko Kenmochi
  • Patent number: 8749733
    Abstract: A liquid crystal display device, without light leakage in a black display mode, is provided. The liquid crystal display (LCD) device includes a LCD panel, a light source, and an optical filter between the LCD and the light source. When the LCD panel is in the black display mode without the optical filter, leakage light leaking from the LCD panel in an oblique direction shows a hue having a local minimum value in a wavelength range from 450 nm to 550 nm. Normal incident light entering into the LCD in a normal direction shows a hue same as that of light just emitted from the light source, and oblique incident light entering into the LCD panel in an oblique direction shows a hue having a local maximum value in a wavelength range from 400 nm to less than 550 nm.
    Type: Grant
    Filed: April 26, 2010
    Date of Patent: June 10, 2014
    Assignee: Sony Corporation
    Inventors: Tsuyoshi Maeda, Toyokazu Ogasawara
  • Patent number: 8724056
    Abstract: A polarizing element includes a plurality of first needle-shaped particles that have transmittance for first polarized light, which is in a first polarization state, that is different from transmittance for second polarized light, which is in a second polarization state different from the first polarization state, in a first wavelength region and a plurality of second needle-shaped particles that have transmittance for the first polarized light that is different from transmittance for the second polarized light, in a second wavelength region different from the first wavelength region.
    Type: Grant
    Filed: June 28, 2012
    Date of Patent: May 13, 2014
    Assignee: Seiko Epson Corporation
    Inventor: Yoshitomo Kumai
  • Patent number: 8715792
    Abstract: A liquid-crystal display device comprising first and second polarizing elements, and a liquid-crystal cell disposed between the first and second polarizing elements, wherein the liquid-crystal cell comprises first and second substrates (provided that the first substrate is disposed closer to the first polarizing element, and the second substrate is disposed closer to the second polarizing element), a liquid-crystal layer disposed between the first and second substrates, a color filter layer disposed on an inner surface of the first substrate, and an in-cell polarizing layer disposed between the color filter layer and the liquid-crystal layer, the absorption axis of the first polarizing element and the absorption axis of the in-cell polarizing layer are parallel to each other, and the sum total of the absolute values of Re of all the layers disposed between the in-cell polarizing layer and the first polarizing element is equal to or less than 10 nm, and the sum total of the absolute values of Rth thereof is eq
    Type: Grant
    Filed: April 23, 2010
    Date of Patent: May 6, 2014
    Assignee: Fujifilm Corporation
    Inventors: Mitsuyoshi Ichihashi, Yukito Saitoh
  • Patent number: 8710501
    Abstract: An electro-optical device includes a light-emitting layer provided with a white light-emitting element; and a reflective filter layer that is located at one side of the light-emitting layer and is provided with a reflective color filter.
    Type: Grant
    Filed: November 14, 2005
    Date of Patent: April 29, 2014
    Assignee: Seiko Epson Corporation
    Inventor: Takashi Miyazawa
  • Patent number: 8675159
    Abstract: Disclosed is a liquid crystal display device, wherein u?on axis and v?on axis, u?max and v?max, and u?min and v?min satisfy following expressions (1), (2) and (3): u ave ? = ( u max ? - u min ? 2 ) , v ave ? = ( v max ? - v min ? 2 ) ( 1 ) ? ? ? u ? ? v ave - on ? ? axis ? = ( u ave ? - u on ? ? axis ? ) 2 + ( v ave ? - v on ? ? axis ? ) 2 ? 0.04 ( 2 ) 0.35 ? v on ? ? axis ? ? 0.55 ( 3 ) wherein u?on axis and v?on axis are hues in a black state observed in a front direction; u?max and v?max are maximum values of u? and v? in a black state among values observed in directions with an azimuth angle ranging from 0° to 360° and a polar angle of 60°; and u?min and v?min are minimum values of u? and v? in a black state among values observed in directions with an azimuth angle ranging from 0° to 360° and a polar angle of 60°.
    Type: Grant
    Filed: March 9, 2012
    Date of Patent: March 18, 2014
    Assignee: Fujifilm Corporation
    Inventors: Hirofumi Toyama, Yujiro Yanai, Naoyoshi Yamada, Katsufumi Ohmuro, Takumi Ando
  • Publication number: 20140022492
    Abstract: A liquid crystal display device including polarizing films that polarize infrared-range light as well as visible-range light and being operated in a visible light mode and an infrared light mode is disclosed. The liquid crystal display device includes a liquid crystal panel, polarizing films attached to the top and bottom surfaces of the liquid crystal panel, and a backlight unit disposed under the liquid crystal panel. At least one of the polarizing films includes an infrared polarizing film or a polarizing film for both visible and infrared light.
    Type: Application
    Filed: December 19, 2012
    Publication date: January 23, 2014
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Se-Min Lee, Jae-Jung Han, Joo-Young Yeon, Mi-Na Shin
  • Patent number: 8629945
    Abstract: A viewing system has a parallax separation device placed in front of a liquid crystal display panel. The liquid display panel can be used to display a composite image that has many display segments, with each segment having two or more elongated image sections of different images. Each image section may occupy one or more columns of color pixels. The parallax separation device has a plurality of parallax separation elements, each aligned with a display segment for separating the different image sections as seen in a viewer's eyes. The parallax separation device has a barrier axis parallel to the longitudinal axis of the elongated image sections. The color sub-pixels in each pixel are arranged along a direction parallel to the barrier axis. A tracking device and a processor are used to determine the locations of image sections under the parallax separation elements based on positions of a viewer.
    Type: Grant
    Filed: March 20, 2013
    Date of Patent: January 14, 2014
    Assignee: 3DV Co., Ltd.
    Inventor: Kwok Wah Allen Lo
  • Patent number: 8583217
    Abstract: An in vivo drug concentration distribution measuring device for measuring, when a drug having an imaging function is administered, in vivo concentration distribution of the drug is disclosed.
    Type: Grant
    Filed: October 1, 2009
    Date of Patent: November 12, 2013
    Assignee: Seiko Epson Corporation
    Inventors: Makoto Katase, Chiyoaki Iijima
  • Patent number: 8570462
    Abstract: Provided is a liquid crystal display device including: a liquid crystal cell (15) including a first substrate (110), a second substrate (111), and a liquid crystal layer (160) sealed between the first substrate and the second substrate; a first polarization member (210) for transmitting light in a predetermined polarization direction; and a second polarization member (220) for transmitting light in another polarization direction which is orthogonal to the predetermined polarization direction. At least one of the first polarization member and the second polarization member includes a multilayer thin film polarizer including a plurality of thin film polarizers which are stacked so that transmission axes of the plurality of thin film polarizers are aligned. The multilayer thin film polarizer includes a thin film polarizer formed in a predetermined film thickness by coating with dye molecules which are aligned by a shear stress.
    Type: Grant
    Filed: April 13, 2010
    Date of Patent: October 29, 2013
    Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Takato Hiratsuka, Masaya Adachi, Miharu Otani, Jun Tanaka, Chie Yoshizawa
  • Patent number: 8570463
    Abstract: A liquid crystal display device includes: a liquid crystal panel; a first polarizing film and a second polarizing film on a bottom surface and a top surface, respectively, of the liquid crystal panel; a backlight unit below the first polarizing film; and a titanium oxide film on the second polarizing film and that transmits one of right-handed circularly polarized light and left-handed circularly polarized light and reflects the other, with a predetermined wavelength, of the right-handed circularly polarized light and the left-handed circularly polarized light.
    Type: Grant
    Filed: November 23, 2010
    Date of Patent: October 29, 2013
    Assignee: LG Display Co., Ltd.
    Inventors: Seung-Ho Park, Chul Nam, Hyong-Jong Choi
  • Publication number: 20130271704
    Abstract: The present invention provides a liquid crystal display module configured with a color filter substrate, a TFT substrate, a layer of liquid crystal, and a sealant. The TFT substrate and the color filter substrate are arranged opposite to each other and the sealant is used to confine the layer of liquid crystal within the space defined between the TFT substrate and the color filter substrate. The color filter substrate includes a first glass substrate, a transparent conductive layer, and a black matrix. Wherein the transparent conductive layer is laminated over the black matrix and defines a recess which is located on a surface facing the layer of liquid crystal of the first glass substrate. The recess is surrounded by the black matrix, and end of the sealant abuts against the recess, and a width of the sealant is smaller than the width of the recess. The present invention further provides a LCD device incorporated with a LCD module as described.
    Type: Application
    Filed: April 20, 2012
    Publication date: October 17, 2013
    Applicant: SHENZHEN CHINA STR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Guodong Zhao, FangFu Chen, Tao Ding, Ming Liu
  • Patent number: 8551582
    Abstract: Novel light polarizing articles comprising a substrate, a light polarizing layer comprising ion-bearing polarizing dye molecules, a coupling layer, and a protective layer, and method of making the same. Due to the presence of the coupling layer bearing counter ions, adhesion of the polarizing layer to the protective layer is improved. The light polarizing article has advantageous chemical, mechanical and thermal resistance. The light polarizing article can be used, for example, as ophthalmic products and in display devices.
    Type: Grant
    Filed: February 11, 2008
    Date of Patent: October 8, 2013
    Assignee: Corning Incorporated
    Inventors: Eric Gesell, David Henry
  • Publication number: 20130208273
    Abstract: Methods and apparatus for combining or separating spectral components by means of a polychromat. A polychromat is employed to combine a plurality of beams, each derived from a separate source, into a single output beam, thereby providing for definition of one or more of the intensity, color, color uniformity, divergence angle, degree of collimation, polarization, focus, or beam waist of the output beam. The combination of sources and polychromat may serve as an enhanced-privacy display and to multiplex signals of multiple spectral components. In other embodiments of the invention, a polychromat serves to disperse spectral components for spectroscopic or de-multiplexing applications.
    Type: Application
    Filed: September 16, 2011
    Publication date: August 15, 2013
    Applicants: MASSACHUSETTS INSTITUTE OF TECHNOLOGY, UNIVERSITY OF UTAH RESEARCH FOUNDATION
    Inventors: Jose Dominguez-Caballero, Rajesh Menon
  • Publication number: 20130162935
    Abstract: A polarizing plate includes a polarizer; and a protective film attached to at least one side of the polarizer via an adhesive layer. The adhesive layer is formed of a water-based adhesive including a polyvinyl alcohol resin, a zirconium compound, and an imine crosslinking agent. The polarizing plate has a variation in light transmittance (|B-A|) from 0% to about 0.25% at wavelengths from 400 nm to 780 nm, where A is an average value of initial light transmittance of the polarizing plate at wavelengths from 400 nm to 780 nm, and B is an average value of light transmittance of the polarizing plate at wavelengths from 400 nm to 780 nm measured after the polarizing plate has been dipped in water of 25° C. for 3 hours, followed by drying at 25° C. for 2 hours.
    Type: Application
    Filed: December 20, 2012
    Publication date: June 27, 2013
    Inventors: Eun Kyeong Seo, Dong Yoon Shin, Ae Kyoung Kim, A. Ra Jo, So Hee Yu, Il Woong Baek, Min Jung Kim, Hae Ryong Chung
  • Publication number: 20130120695
    Abstract: An optical wavelength filter with flat-top pass-band and tunable center wavelength is presented. The filter uses birefringence wave plates, polarizers, and electrically controlled birefringent (ECB) liquid crystal cells. The filter employs a multistage structure which is composed of a cascade of filter units. Each stage includes two polarizers, two birefringent crystal wave plates and two ECB liquid crystal cells. The pair of the thinnest wave plates have a thickness of L, and the wave plates in the following stages have thicknesses of 2 L, 4 L, . . . , 2(N?1)L. The passband bandwidth is determined by the free spectral range (FSR) of the filter stage with the thickest wave plates (with a thickness of 2(N?1)L). The ECB liquid crystal cells enable the selection of one wavelength in a certain wavelength range and the correction of the variations in retardations which are typically caused by the variation in crystals' lengths. The flat-top liquid crystal filter has a larger 0.
    Type: Application
    Filed: October 26, 2012
    Publication date: May 16, 2013
    Applicant: COADNA PHOTONICS INC.
    Inventor: COADNA PHOTONICS INC.
  • Patent number: 8436959
    Abstract: A liquid crystal display and a fabrication method thereof are provided. The liquid crystal display includes a liquid crystal display panel having a plurality of pixels. A backlight module is disposed under the liquid crystal display panel. A lens is disposed between the liquid crystal display panel and the backlight module, having a plurality of optical structures formed on an upper surface and a lower surface thereof. The lens can disperse lights from the backlight module to form a plurality of chromatic light sources, wherein each chromatic light source is composed of colored lights with a continuous spectrum formed from a red light to a violet light and corresponds to each pixel.
    Type: Grant
    Filed: December 29, 2010
    Date of Patent: May 7, 2013
    Assignee: Hannstar Display Corp.
    Inventors: Wei-Tong Shih, Cheng-Chia Wu
  • Patent number: 8427591
    Abstract: A viewing system has a parallax separation device placed in front of a liquid crystal display panel. The liquid display panel can be used to display a composite image that has many display segments, with each segment having two or more elongated image sections of different images. Each image section may occupy one or more columns of color pixels. The parallax separation device has a plurality of parallax separation elements, each aligned with a display segment for separating the different image sections as seen in a viewer's eyes. The parallax separation device has a barrier axis parallel to the longitudinal axis of the elongated image sections. The color sub-pixels in each pixel are arranged along a direction parallel to the barrier axis.
    Type: Grant
    Filed: March 17, 2010
    Date of Patent: April 23, 2013
    Assignee: 3DV Co. Ltd.
    Inventor: Kwok Wah Allen Lo
  • Patent number: 8405800
    Abstract: An object of the present invention is to provide a display device having a high contrast ratio by a simple and easy method. Another object of the present invention is to manufacture such a display device having a high contrast ratio at low cost. The present invention relates to a display device including a first substrate; a second substrate; a layer including a display element, wherein the layer including the display element is interposed between the first substrate and the second substrate; and stacked polarizers on the outer side of the first substrate or the second substrate. The stacked polarizers are arranged to be in a parallel Nicols state and the wavelength distributions of the extinction coefficients of the stacked polarizers are different from each other.
    Type: Grant
    Filed: January 31, 2007
    Date of Patent: March 26, 2013
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Tetsuji Ishitani, Takeshi Nishi, Yuji Egi
  • Patent number: 8363204
    Abstract: The present invention relates to an optical enhancement film, more specifically, to a cholesteric reflective polarizer film, which is characterized by matching and compensating the emitting spectrum of a white LED backlight for LCD TVs and Monitors. The film not only enhances the brightness of the LED-backlit displays by light recycling effect but also increases the color rendering quality of the LED-backlit displays by phase balancing effect.
    Type: Grant
    Filed: December 8, 2010
    Date of Patent: January 29, 2013
    Assignee: MacroDisplay Inc.
    Inventor: Yao-Dong Ma
  • Publication number: 20130016312
    Abstract: The liquid crystal display device may include a first electrode; a second electrode facing the first electrode and forming a vertical electrical field together with the first electrode; a blue phase liquid crystal layer provided between the first electrode and the second electrode; and a first prism sheet provided to face the second electrode with the first electrode between the second electrode and the first prism sheet. The first prism sheet changes a path of incident light so that the incident light from the outside obliquely enters the blue phase liquid crystal layer with respect to the vertical electrical field.
    Type: Application
    Filed: January 12, 2012
    Publication date: January 17, 2013
    Applicant: Kyungpook National University Industry-Academic Cooperation
    Inventors: Hak Rin KIM, Yong Hun KIM
  • Publication number: 20130010236
    Abstract: Provided are a circular polarizer and a reflective liquid crystal display including the same. The circular polarizer includes a polarizer comprising a polarizing film in which an absorption axis has an angle of about 85° to about 95° with respect to a liquid crystal alignment direction of a liquid crystal cell, where, in CIE coordinates, a color “a” is about ?1 to about ?0.6 and a color “b” is about 0.3 to about 2.5 and a ¼ wavelength plate in which an optical axis has an angle of about 130° to about 140° with respect to the liquid crystal alignment direction of the light crystal cell. When the circular polarizer is used, the visibility and color tone of the reflective liquid crystal display may be improved.
    Type: Application
    Filed: March 15, 2011
    Publication date: January 10, 2013
    Inventors: Sung-Hyun Nam, Hyuk Yoon, Kyun Il Rah, Moon-Soo Park
  • Patent number: 8350997
    Abstract: A Liquid Crystal Display (LCD) device includes: a panel on which images are implemented; a backlight device below the panel and providing light; and a polarizer including a linear-polarizing layer over the panel that linear-polarizes light from the backlight device and a circular-polarizing layer over the linear-polarizing layer that circular-polarizes the linear-polarized light.
    Type: Grant
    Filed: December 15, 2008
    Date of Patent: January 8, 2013
    Assignee: LG Display Co., Ltd.
    Inventors: Mi-Kyung Lee, Ji-Yun Jang
  • Publication number: 20130002999
    Abstract: A polarizing element includes a plurality of first needle-shaped particles that have transmittance for first polarized light, which is in a first polarization state, that is different from transmittance for second polarized light, which is in a second polarization state different from the first polarization state, in a first wavelength region and a plurality of second needle-shaped particles that have transmittance for the first polarized light that is different from transmittance for the second polarized light, in a second wavelength region different from the first wavelength region.
    Type: Application
    Filed: June 28, 2012
    Publication date: January 3, 2013
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Yoshitomo Kumai
  • Publication number: 20130002998
    Abstract: A polarizing element includes a plurality of polarizing sections, wherein a first polarizing section included in the plurality of polarizing sections has a first base material and a plurality of first acicular particles dispersed in the first base material such that long axes of the first acicular particles are aligned in substantially the same direction, a second polarizing section included in the plurality of polarizing sections has a second base material and a plurality of second acicular particles dispersed in the second base material such that long axes of the second acicular particles are aligned in substantially the same direction, and the specification of the first acicular particles is different from that of the second acicular particles.
    Type: Application
    Filed: June 28, 2012
    Publication date: January 3, 2013
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Daisuke SAWAKI, Nobuhiko KENMOCHI, Noriko Kenmochi
  • Patent number: 8345182
    Abstract: A liquid crystal display device including lenticular lenses and color separation filters, associated with a subpixel row direction, on the backlight side with respect to lenticular lenses. In a RGW row, a color separation filter reflecting B wavelengths is arranged, and in a GBW row, a color separation filter reflecting R wavelengths is arranged. Together with collecting light in transmissive aperture parts with lenticular lenses and improving the transmitted quantity of light, the light reflected by color separation filters is returned to the backlight and re-utilized.
    Type: Grant
    Filed: January 24, 2008
    Date of Patent: January 1, 2013
    Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Tatsuya Sugita, Masaya Adachi, Shoichi Hirota
  • Patent number: 8319915
    Abstract: The present invention relates to a liquid crystal on silicon imager. The imager includes a backplane substrate, a reflective polarization electrode array, a planar liquid crystal cell, a transparent conductive film and a transparent plate. The reflective polarization electrode array is placed onto the backplane substrate, consists of a plurality of reflective polarization electrodes, and a pattern of each of the reflective polarization electrodes is configured in a planar arrangement having regularly spaced and electrically isolated gaps in parallel to each other. The planar liquid crystal cell is placed above the reflective polarization electrode array. The transparent conductive film is placed above the planar liquid crystal cell. The transparent plate is placed on the transparent conductive film and facing incident light.
    Type: Grant
    Filed: August 3, 2010
    Date of Patent: November 27, 2012
    Assignee: Shanghai Lexvu Opto Microelectronics Technology Co., Ltd.
    Inventor: Herb He Huang
  • Publication number: 20120287380
    Abstract: Disclosed is a color filter substrate for a transflective liquid crystal display device, in which a light shielding layer is arranged at a periphery of an effective display region on a transparent substrate, and color pixels of a plurality of colors including green pixels, a spacer, and a first retardation layer are formed in the effective display region, wherein a recess is formed in each of the color pixels, the first retardation layer is formed in the recess, and the first retardation layer has a function for 90 degree polarization rotation of incident light, which has been converted to linearly polarized light, in one passage of the incident light back and forth in a thickness direction of the first retardation layer.
    Type: Application
    Filed: July 25, 2012
    Publication date: November 15, 2012
    Applicant: TOPPAN PRINTING CO. LTD.
    Inventors: Hidesato HAGIWARA, Mie Shimizu, Kenzo Fukuyoshi, Takao Taguchi