Polarized Patents (Class 40/548)
  • Patent number: 9494821
    Abstract: A display device includes a reflective base member, a first light polarizing film disposed on the surface of the base member, a light source, a second light polarizing medium receiving light from the light source and emitting polarized light towards the first light polarizing film, a birefringence medium positioned between the second light polarizing medium and the first light polarizing film, and means for changing the direction of polarization of the second light polarizing means.
    Type: Grant
    Filed: July 26, 2011
    Date of Patent: November 15, 2016
    Inventors: Uk Choi, Ju Won Kim
  • Patent number: 7841730
    Abstract: A light source comprising sidelight type backlight light guide plate (L), wherein a transmittance angle dependent layer (T1) which transmits normally incident light and reflects obliquely incident light is disposed on one surface of the sidelight type backlight light guide plate (L), and a reflection plate (R) having a repetitive slope structure is disposed on the other surface of the sidelight type backlight light guide plate (L). The invention light source is less in absorption loss due to repetition of light reflection and the like.
    Type: Grant
    Filed: August 20, 2004
    Date of Patent: November 30, 2010
    Assignee: Nitto Denko Corporation
    Inventors: Kazutaka Hara, Naoki Takahashi, Kentarou Takeda, Miki Shiraogawa
  • Patent number: 7559660
    Abstract: A board that hides information in a manner that only certain authorized personnel may change the information and other authorized personnel may view the information. This invention accomplishes the foregoing by placing a locked panel of translucent material over certain information written on the board that may only be changed by an authorized individual by opening the lock. A panel of opaque material is placed over the translucent material in a manner that certain information written on the board will be revealed when authorized personnel remove the opaque material or cause the opaque material to be transparent. The translucent material may be removed by activating a switch or entering a code.
    Type: Grant
    Filed: November 15, 2005
    Date of Patent: July 14, 2009
    Assignee: Pitney Bowes Inc.
    Inventors: G. Jonathan Wolfman, Benjamin D Singer, Ronald P. Sansone
  • Patent number: 7486007
    Abstract: A flat panel display device has a conductive layer formed between a substrate and a polarization plate to prevent static electricity from appearing between the substrate and the polarization plate, thereby improving screen display quality. The flat panel display device includes: a flat display panel including a substrate having an image display unit, a display element arranged on the image display unit of the substrate, and a sealing unit for sealing the display element; a polarization member arranged on at least one of the substrate and the sealing unit; and a shielding member arranged at a portion that does not correspond to the image display unit of the substrate in order to prevent the appearance of static electricity between the substrate and the polarization member.
    Type: Grant
    Filed: October 20, 2005
    Date of Patent: February 3, 2009
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Sun-Youl Lee
  • Patent number: 7369294
    Abstract: An ornamental display device having an interferometric modulator for displaying an ornamental image. The ornamental device may have a patterned diffuser formed on a transparent substrate to provide an ornamental image. The ornamental device may also be a piece of jewelry or an article that may be worn. The image displayed may have an iridescent appearance. A controller may also be used to control images displayed on multiple ornamental device to provide coordinated images based on externals received or pre-programmed images.
    Type: Grant
    Filed: August 20, 2005
    Date of Patent: May 6, 2008
    Assignee: IDC, LLC
    Inventors: Brian J. Gally, William J. Cummings
  • Patent number: 7214118
    Abstract: An image generating apparatus includes an image display board having an array of member ports; a light source behind the display board; a translucent pigment sheet positioned between the image display board and the light source, the translucent pigment sheet including several pigment clusters, each pigment cluster including an array of translucent pigment areas, each member port in the image display board being rotatably fitted with a colorless translucent member preferably in the form of a translucent disk having a disk distal end which is substantially planar and positioned directly proximally of one of the pigment clusters. Each disk has a radially offset selective color admission structure admitting only certain selected wavelengths of light from the light source, each disk having a disk proximal end with a radially offset engaging and orienting structure in the form of a proximally protruding structure or an abrasive surface.
    Type: Grant
    Filed: September 26, 2002
    Date of Patent: May 8, 2007
    Inventor: John G. Maxim
  • Patent number: 6800012
    Abstract: An image generating apparatus includes a pigment sheet having an array of translucent pigment clusters, each pigment cluster being formed of a number of pigment regions, each pigment region containing an individual pigment differing in radiated color from that of a pigment in another pigment region within the pigment cluster; an image display board perforated by an array of light transmission member wells and positioned above the pigment sheet so that the member wells are located over and substantially register with a corresponding pigment cluster; a number of translucent light transmission members, each light transmission member being mounted within one of the member wells so that each light transmission member is movable within its corresponding member well relative to the pigment sheet to any one of various light transmission member positions to selectively receive a selected radiated color from one of the pigment regions; and at least one artificial light source mounted below the pigment sheet.
    Type: Grant
    Filed: December 7, 2001
    Date of Patent: October 5, 2004
    Inventor: John G. Maxim
  • Patent number: 6269565
    Abstract: A viewing device for viewing transparencies comprising a display surface; a source of backlighting that backlights the display surface with linearly polarization axis; member for holding a transparency on the display surface;an optical sensor positioned so that it views the display surface; and polarizer, having a polarizer axis, and suituated between the display surface and the optical sensor. The viewing device is configured such that the polarizer axis is functionallu related to the polarization axis of the polarized light; and the polarized is smaller than the display surface.
    Type: Grant
    Filed: June 4, 1997
    Date of Patent: August 7, 2001
    Assignee: Smartlight Ltd.
    Inventors: Dan Inbar, Alex Natanzon, Hanan Wolf, Ben-zion Levi, Eran Shaffir
  • Patent number: 6032393
    Abstract: An image generating board apparatus is provided, including an image display board having an array of peg ports, pegs formed of translucent and colorless material rotatably fitted into each of at least two of the peg ports, each peg having a peg distal end which is substantially planar and is fitted with a polarized film section, and each peg having a peg proximal end, a light source adjacent to the display board and to the peg distal ends, a polarized film sheet mounted to extend between the light source and the peg distal ends and with its polarization axis angled relative to the polarization axis of the film sheet, and a tape sheet mounted to pass between the film sheet and the peg distal ends, so that light from the light source shines through the film sheet, through the tape sheet, and through the film sections at the peg distal ends and isolates and selectively passes into each peg an isolated wavelength of visible light from the light source, the isolated wavelength illuminating each peg with a color co
    Type: Grant
    Filed: May 15, 1998
    Date of Patent: March 7, 2000
    Inventor: John G. Maxim
  • Patent number: 5591508
    Abstract: The transfer of dichroic inks into stretched and oriented substrates to form stereoscopic polarizing images and the like can be improved by the use of coatings which enhance imbibition of the ink into the substrate. The coatings serve to hold the ink in situ for a sufficient period of time to permit absorption of the dye and transfer of rich colors while minimizing the problems of smearing and/or runoff of unabsorbed ink. The present invention is particularly use will in the adaptation of ink jet printing techniques to the formation of stereoscopic polarizing images.
    Type: Grant
    Filed: January 31, 1995
    Date of Patent: January 7, 1997
    Assignee: Rowland Institute for Science
    Inventor: Julius J. Scarpetti