Patents by Inventor Sayuri Fujiwara

Sayuri Fujiwara has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9366902
    Abstract: A display device capable of emitting sufficient fluorescence is provided without an increase in the thickness of the liquid crystal layer. The device includes: a fluorescent emission layer (23) having fluorescent pigment molecules that absorb light to emit fluorescence; and a liquid crystal layer (4) capable of switching between a transparent state and a scattering state. The fluorescent pigment molecules are dichroic fluorescent pigment molecules (23a) with different emission intensities depending on the direction of emission. The dichroic fluorescent pigment molecules (23a) in the fluorescent emission layer (23) are oriented so as to have transition dipole moments with the same direction.
    Type: Grant
    Filed: November 20, 2014
    Date of Patent: June 14, 2016
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Yasushi Asaoka, Kiyoshi Minoura, Kazuhiro Deguchi, Eiji Satoh, Sayuri Fujiwara
  • Patent number: 9250475
    Abstract: A liquid crystal display device (100A) of the present invention includes a liquid crystal layer (1) and first and second alignment films (12, 13) which are provided with an alignment treatment. The liquid crystal layer (1) includes, in each of the pixels, a plurality of first small sections (14a) separated by a wall (10) and the first alignment film (12) and a plurality of second small sections (14b) separated by the wall (10) and the second alignment film (13). Each of the plurality of first small sections (14a) has a first liquid crystal region (11a). Each of the plurality of second small sections (14b) has a second liquid crystal region (11b). Each of the first and second liquid crystal regions (11a, 11b) includes a nematic liquid crystal material and a dichromatic dye (21a, 21b). The dichromatic dye (21a) of the first liquid crystal region (11a) is aligned along the alignment direction of the first alignment film (12).
    Type: Grant
    Filed: October 17, 2011
    Date of Patent: February 2, 2016
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yasushi Asaoka, Kiyoshi Minoura, Eiji Satoh, Sayuri Fujiwara
  • Publication number: 20150070629
    Abstract: A display device capable of emitting sufficient fluorescence is provided without an increase in the thickness of the liquid crystal layer. The device includes: a fluorescent emission layer (23) having fluorescent pigment molecules that absorb light to emit fluorescence; and a liquid crystal layer (4) capable of switching between a transparent state and a scattering state. The fluorescent pigment molecules are dichroic fluorescent pigment molecules (23a) with different emission intensities depending on the direction of emission. The dichroic fluorescent pigment molecules (23a) in the fluorescent emission layer (23) are oriented so as to have transition dipole moments with the same direction.
    Type: Application
    Filed: November 20, 2014
    Publication date: March 12, 2015
    Inventors: Yasushi ASAOKA, Kiyoshi MINOURA, Kazuhiro DEGUCHI, Eiji SATOH, Sayuri FUJIWARA
  • Patent number: 8922737
    Abstract: A display device capable of emitting sufficient fluorescence is provided without an increase in the thickness of the liquid crystal layer. The device includes: a fluorescent emission layer (23) having fluorescent pigment molecules that absorb light to emit fluorescence; and a liquid crystal layer (4) capable of switching between a transparent state and a scattering state. The fluorescent pigment molecules are dichroic fluorescent pigment molecules (23a) with different emission intensities depending on the direction of emission. The dichroic fluorescent pigment molecules (23a) in the fluorescent emission layer (23) are oriented so as to have transition dipole moments with the same direction.
    Type: Grant
    Filed: April 18, 2011
    Date of Patent: December 30, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yasushi Asaoka, Kiyoshi Minoura, Kazuhiro Deguchi, Eiji Satoh, Sayuri Fujiwara
  • Patent number: 8558972
    Abstract: A liquid crystal display device includes a first substrate and a second substrate disposed to face each other, a polymer-dispersed liquid crystal layer provided between the first substrate and the second substrate, and a black matrix provided on the first substrate, where a display region for displaying an image and a frame region around the display region are defined, and in the frame region, the black matrix includes a plurality of light-blocking regions spaced apart from one another.
    Type: Grant
    Filed: October 30, 2009
    Date of Patent: October 15, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yasushi Asaoka, Eiji Satoh, Kazuhiro Deguchi, Sayuri Fujiwara, Takafumi Matsuda, Katsuhiro Mikumo, Kazunori Tanimoto
  • Publication number: 20130194524
    Abstract: A liquid crystal panel includes a liquid crystal layer that can switch to a light transmitting state and a light scattering state, and lines provided on a portion of the liquid crystal layer on the side opposite to the observation side. The lines are provided with a reflecting portion by which at least a portion of light that entered from the observation side is reflected toward the observation side.
    Type: Application
    Filed: October 4, 2011
    Publication date: August 1, 2013
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Yuichi Kita, Katsuhiro Kikuchi, Takashi Ochi, Masakazu Shibasaki, Iori Aoyama, Sayuri Fujiwara, Eiji Satoh, Yasushi Asaoka, Kazuhiro Deguchi
  • Patent number: 8482702
    Abstract: A liquid crystal display device includes a liquid crystal layer 1 whose state is switchable between a light-transmitting state and a light-scattering state, a front substrate 3 and a rear substrate 2 between which the liquid crystal layer 1 is held, a pair of electrodes 4, 8 between which the liquid crystal layer 1 is interposed and which are configured to apply a voltage across the liquid crystal layer 1, and first and second alignment films 13, 12 respectively provided between the liquid crystal layer 1 and the front substrate 3 and between the liquid crystal layer 1 and the rear substrate 2. The liquid crystal layer 1 includes, in each of the pixels, a continuous wall 10, a plurality of small sections 14 separated by the wall 10, and a plurality of liquid crystal regions 11, each of which is formed in any one of the plurality of small sections 14.
    Type: Grant
    Filed: August 21, 2009
    Date of Patent: July 9, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yasushi Asaoka, Eiji Satoh, Kiyoshi Minoura, Sayuri Fujiwara
  • Publication number: 20130044280
    Abstract: A display device capable of emitting sufficient fluorescence is provided without an increase in the thickness of the liquid crystal layer. The device includes: a fluorescent emission layer (23) having fluorescent pigment molecules that absorb light to emit fluorescence; and a liquid crystal layer (4) capable of switching between a transparent state and a scattering state. The fluorescent pigment molecules are dichroic fluorescent pigment molecules (23a) with different emission intensities depending on the direction of emission. The dichroic fluorescent pigment molecules (23a) in the fluorescent emission layer (23) are oriented so as to have transition dipole moments with the same direction.
    Type: Application
    Filed: April 18, 2011
    Publication date: February 21, 2013
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Yasushi Asaoka, Kiyoshi Minoura, Kazuhiro Deguchi, Eiji Satoh, Sayuri Fujiwara
  • Publication number: 20120320443
    Abstract: A building material in which an image can be displayed on a transparent plate such as a windowpane is realized using a configuration that is simple and low-cost. A window member (5) includes a display panel (11) having a display region (11a) that can switch between a light transmitting state and a non-light-transmitting state and a frame region (11b) serving as a non-display region formed on an outer side of the display region (11a), a light-transmitting cover (40) disposed on the display panel so as to cover at least a part of the frame region (11b) and at least a part of the display region (11a) that is adjacent to the frame region (11b), and a pair of windowpanes (3, 3) that are held in parallel in the window frame (2). The light-transmitting cover (40) is shaped such that the thickness thereof decreases from the display region (11a) toward the frame region (11b).
    Type: Application
    Filed: February 4, 2011
    Publication date: December 20, 2012
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Sayuri Fujiwara, Eiji Satoh, Yasushi Asaoka, Kazuhiro Deguchi, Hisashi Watanabe
  • Patent number: 8314909
    Abstract: A liquid crystal display device 100 includes: a liquid crystal layer 1; a front substrate 3 and a rear substrate 2 between which the liquid crystal layer 1 is held; a pair of electrodes 4, 8 between which the liquid crystal layer 1 is interposed and which are configured to apply a voltage across the liquid crystal layer 1; circular polarizers 15, 16 respectively provided on a front side of the front substrate 3 and a rear side of the rear substrate 2; and first and second alignment films 13, 12 respectively provided between the liquid crystal layer 1 and the front substrate 3 and between the liquid crystal layer 1 and the rear substrate 2. The liquid crystal layer 1 includes, in each of the pixels, a continuous wall 10, a plurality of small sections 14 separated by the wall 10, and a plurality of liquid crystal regions 11, each of which is formed in any one of the plurality of small sections 14.
    Type: Grant
    Filed: October 28, 2008
    Date of Patent: November 20, 2012
    Assignee: Sharp Kabushiki Kasiaha
    Inventors: Yasushi Asaoka, Kiyoshi Minoura, Eiji Satoh, Sayuri Fujiwara
  • Patent number: 8310625
    Abstract: A liquid crystal display device (100) according to the present invention includes: a scattering liquid crystal panel (110) including a scattering-type liquid crystal layer (140) which is capable of taking a transparent state; and a scattering state and a retroreflection plate (150). The scattering liquid crystal panel (110) before being combined with the retroreflection plate (150) satisfies the relationship of 0.45?log(I0-10/I20-30)?1.48, where, regarding light which enters through a rear face (110b) of the scattering liquid crystal panel (110) and goes out through a front face (110a), I0-10 represents a mean value of scattering intensity of light which goes out at an angle in a range from 0 degrees to 10 degrees with respect to a normal direction of the front face (110a), and I20-30 represents a mean value of scattering intensity of light which goes out in a range from 20 degrees to 30 degrees.
    Type: Grant
    Filed: May 2, 2008
    Date of Patent: November 13, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Sayuri Fujiwara, Kiyoshi Minoura, Eiji Satoh, Yasushi Asaoka
  • Publication number: 20120140147
    Abstract: To provide a display panel that can achieve a transparent state having high panel transmittance and that can carry out a display in which a figure looks as if it has popped up in the air, a display panel disclosed includes a PDLC panel (10) including: a substrate (20) including a wire; a substrate (30) provided so as to face the substrate (20); and a PDLC layer (40) provided between the substrate (20) and the substrate (30), the PDLC layer (40) including PDLC which is switched between a light transmitting state and a light scattering state in correspondence with the presence or absence of an electric field applied to the PDLC layer (40), the display panel including no colored layer, the display panel selectively forming a light transmitting region and a light scattering region in response to control of the presence or absence of the electric field applied to the PDLC layer (40), at least one of (i) a reflectance reducing layer for reducing direct reflection of external light by the wire, (ii) a light blocking
    Type: Application
    Filed: May 25, 2010
    Publication date: June 7, 2012
    Inventors: Eiji Satoh, Yasushi Asaoka, Sayuri Fujiwara, Kazuhiro Deguchi
  • Publication number: 20120002142
    Abstract: A liquid crystal display device includes a first substrate and a second substrate disposed to face each other, a polymer-dispersed liquid crystal layer provided between the first substrate and the second substrate, and a black matrix provided on the first substrate, where a display region for displaying an image and a frame region around the display region are defined, and in the frame region, the black matrix includes a plurality of light-blocking regions spaced apart from one another.
    Type: Application
    Filed: October 30, 2009
    Publication date: January 5, 2012
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Yasushi Asaoka, Eiji Satoh, Kazuhiro Deguchi, Sayuri Fujiwara, Takafumi Matsuda, Katsuhiro Mikumo, Kazunori Tanimoto
  • Publication number: 20110317112
    Abstract: An ultraviolet-absorbing layer is provided between an insulating substrate and a transparent electrode, the ultraviolet-absorbing layer having a transmittance ratio (T (365 nm)/T (315 nm)) of not less than 6.3 where (T (365 nm)) is a transmittance at a wavelength of 365 nm and (T (315 nm)) is a transmittance at a wavelength of 315 nm.
    Type: Application
    Filed: February 15, 2010
    Publication date: December 29, 2011
    Inventors: Yasushi Asaoka, Kiyoshi Minoura, Eiji Satoh, Kazuhiro Deguchi, Sayuri Fujiwara, Kenji Miyamoto
  • Patent number: 8049846
    Abstract: A reflection-type display device includes an optical modulation layer 34, a pair of substrates 30 and 32 between which the optical modulation layer 34 is retained, an electrode structure 52, 44 for causing pixel-by-pixel changes in the optical characteristics of the optical modulation layer 34. One of the pair of substrates 32 has a corner cube array composed of a plurality of corner cubes 36. The corner cube array 36 has a plurality of projections 46 defining an interval between the pair of substrates 30 and 32, the plurality of projections 46 being disposed in peak portions.
    Type: Grant
    Filed: March 3, 2006
    Date of Patent: November 1, 2011
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Sayuri Fujiwara, Kiyoshi Minoura, Makoto Kanbe, Yutaka Sawayama
  • Patent number: 7999889
    Abstract: A display device including: a pair of substrates 10 and 12 placed so as to oppose each other; a plurality of pixel electrodes 16 formed on one 12 of the pair of substrates; a counter electrode 18 formed on the other 10 of the pair of substrates; and a modulation layer 1 provided between the plurality of pixel electrodes 16 and the counter electrode 18, the modulation layer 1 being capable of switching states between a transmitting state in which light is transmitted and a scattering state in which light is scattered. The display device further includes: a plurality of switching elements 13 formed on the one substrate 12 and electrically connected respectively to corresponding pixel electrodes 16; a plurality of wiring lines 14 disposed on the one substrate 12 and at intervals 22 from the plurality of pixel electrodes 16; and a diffraction preventing layer 30 disposed in the intervals 22 between the wiring lines 14 and the pixel electrodes 16.
    Type: Grant
    Filed: March 14, 2007
    Date of Patent: August 16, 2011
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kiyoshi Minoura, Sayuri Fujiwara
  • Publication number: 20100302488
    Abstract: A liquid crystal display device 100 includes: a liquid crystal layer 1; a front substrate 3 and a rear substrate 2 between which the liquid crystal layer 1 is held; a pair of electrodes 4, 8 between which the liquid crystal layer 1 is interposed and which are configured to apply a voltage across the liquid crystal layer 1; circular polarizers 15, 16 respectively provided on a front side of the front substrate 3 and a rear side of the rear substrate 2; and first and second alignment films 13, 12 respectively provided between the liquid crystal layer 1 and the front substrate 3 and between the liquid crystal layer 1 and the rear substrate 2. The liquid crystal layer 1 includes, in each of the pixels, a continuous wall 10, a plurality of small sections 14 separated by the wall 10, and a plurality of liquid crystal regions 11, each of which is formed in any one of the plurality of small sections 14.
    Type: Application
    Filed: October 28, 2008
    Publication date: December 2, 2010
    Inventors: Yasushi Asaoka, Kiyoshi Minoura, Eiji Satoh, Sayuri Fujiwara
  • Publication number: 20100149456
    Abstract: A liquid crystal display device (100) according to the present invention includes: a scattering liquid crystal panel (110) including a scattering-type liquid crystal layer (140) which is capable of taking a transparent state; and a scattering state and a retroreflection plate (150). The scattering liquid crystal panel (110) before being combined with the retroreflection plate (150) satisfies the relationship of 0.45?log(I0-10/I20-30)?1.48, where, regarding light which enters through a rear face (110b) of the scattering liquid crystal panel (110) and goes out through a front face (110a), I0-10 represents a mean value of scattering intensity of light which goes out at an angle in a range from 0 degrees to 10 degrees with respect to a normal direction of the front face (110a), and I20-30 represents a mean value of scattering intensity of light which goes out in a range from 20 degrees to 30 degrees.
    Type: Application
    Filed: May 2, 2008
    Publication date: June 17, 2010
    Inventors: Sayuri Fujiwara, Kiyoshi Minoura, Eiji Satoh, Yasushi Asaoka
  • Patent number: 7551247
    Abstract: A reflection-type display device 200 includes: an active switch layer 201s including a plurality of switching elements 201t; a plurality of pixel electrodes 207 each connected to a corresponding one of the plurality of switching elements 201t; a reflective layer 205 formed between the active switch layer 201s and the plurality of pixel electrodes 207; and a modulation layer 213 provided at a side of the pixel electrodes 207 facing a viewer, the modulation layer 213 being capable of switching between a first state and a second state of respectively different optical characteristics. The reflective layer 205 is connected to neither the plurality of switching elements 201t nor the plurality of pixel electrodes 207.
    Type: Grant
    Filed: June 6, 2005
    Date of Patent: June 23, 2009
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Sayuri Fujiwara, Yutaka Sawayama, Kiyoshi Minoura, Makoto Kanbe
  • Publication number: 20090135320
    Abstract: A display device including: a pair of substrates 10 and 12 placed so as to oppose each other; a plurality of pixel electrodes 16 formed on one 12 of the pair of substrates; a counter electrode 18 formed on the other 10 of the pair of substrates; and a modulation layer 1 provided between the plurality of pixel electrodes 16 and the counter electrode 18, the modulation layer 1 being capable of switching states between a transmitting state in which light is transmitted and a scattering state in which light is scattered. The display device further includes: a plurality of switching elements 13 formed on the one substrate 12 and electrically connected respectively to corresponding pixel electrodes 16; a plurality of wiring lines 14 disposed on the one substrate 12 and at intervals 22 from the plurality of pixel electrodes 16; and a diffraction preventing layer 30 disposed in the intervals 22 between the wiring lines 14 and the pixel electrodes 16.
    Type: Application
    Filed: March 14, 2007
    Publication date: May 28, 2009
    Inventors: Kiyoshi Minoura, Sayuri Fujiwara