Patent application number | Description | Published |
20110141551 | ILLUMINATION DEVICE AND DISPLAY DEVICE - An illumination device is provided and includes: a light guide member; a light source provided on one or more side faces of the light guide member; and a light modulating element including a pair of transparent substrates disposed to oppose each other with a gap therebetween, a first electrode provided on a surface of one of the transparent substrates, a second electrode provided on a surface of the other of the transparent substrates, and a light modulation layer provided in the gap and expressing a scattering property or a transparency to light from the light source in accordance with a magnitude of an electric field. The first electrode, the second electrode, or both thereof is patterned, and a density of pattern of the first electrode, the second electrode, or both thereof to which the patterning is applied is varied depending on a distance from the light source. | 06-16-2011 |
20110249221 | LIGHTING DEVICE AND DISPLAY DEVICE - A lighting device includes: a light guide plate; a light source disposed on a side face of the light guide plate; and a light modulation element disposed on a surface or in the inside of the light guide plate and adhered to the light guide plate. The light modulation element has a pair of transparent substrates disposed separately and oppositely, a pair of electrodes provided on respective surfaces of the pair of transparent substrates, and a light modulation layer provided in a gap between the pair of transparent substrates. The light modulation layer includes a first region, having optical anisotropy, responsive to an electric field, and a second region, having optical anisotropy, unresponsive to an electric field. The second region has a striped structure with average striped texture size of 0.05 μm to 10 μm both inclusive in a short axis direction. | 10-13-2011 |
20120098875 | ILLUMINATION DEVICE AND DISPLAY DEVICE - An illumination device includes a light guide plate, a light source, and a light modulation element. The light guide plate has convex portions extending in a direction parallel to a normal to a face opposed to the light source among side faces of the light guide plate, and the light source is configured of light source blocks. The light modulation element includes a pair of transparent substrates disposed separately and oppositely to each other, a plurality of first electrodes provided on a surface of one of the transparent substrates, and extending in a direction crossing an extending direction of the convex portions, a second electrode provided on a surface of the other transparent substrate, and a light modulation layer provided in a gap between the transparent substrates, and exhibiting a scattering property or a transparent property to light from the light source depending on magnitude of an electric field. | 04-26-2012 |
20120257139 | ILLUMINATION UNIT AND DISPLAY - There are provided an illumination unit and a display which are capable of further uniformizing chromaticity of illumination light in a plane while suppressing a reduction in light extraction efficiency. A light modulation device bonded to a light guide plate includes a light modulation layer exhibiting a scattering property or transparency with respect to light propagating through the light guide plate. The light modulation layer is sandwiched between a pair of transparent substrates. While alignment films controlling alignment of the light modulation layer are disposed on surfaces of the transparent substrates, an electrode generating an electric field which changes the alignment of the light modulation layer is disposed on only the surface of the transparent substrate. | 10-11-2012 |
20120274867 | DISPLAY AND ILLUMINATION UNIT - An illumination unit includes: a light modulation layer disposed in a gap between a first transparent substrate and a second transparent substrate, and exhibiting a scattering property or transparency with respect to light from a light source, depending on magnitude of an electric field; and an electrode generating an electric field in the light modulation layer, when a voltage is applied thereto, in which the light modulation layer generates a plurality of strip-like illumination light beams extending in a direction intersecting with a first end surface of the first or second transparent substrate with use of light from the light source, when an electric field for a three-dimensional display mode is applied from the electrode to the light modulation layer, and a light emission area per unit area of each of the strip-like illumination light beams varies with a distance from the light source. | 11-01-2012 |
20120281273 | DISPLAY AND ILLUMINATION UNIT - A light modulation layer disposed between a first transparent substrate and a second transparent substrate generates a plurality of first strip-like illumination light beams extending in a direction intersecting with a first end surface of the first or second transparent substrate at a first angle with use of light from a light source, when an electric field for a first mode is applied from an electrode to the light modulation layer. The light modulation layer generates a plurality of second strip-like illumination light beams extending in a direction intersecting with the first end surface at an angle different from the first angle or a direction parallel to the first end surface with use of light from the light source, when an electric field for a second mode is applied from the electrode to the light modulation layer. | 11-08-2012 |
20130229595 | DISPLAY PANEL AND DISPLAY UNIT - A display panel and a display unit are provided that allow a high-contrast and a bright image to be obtained. A display panel is composed of a light modulation device. The light modulation device includes: an electrode capable of generating a main electric field in a direction parallel to a plane intersecting with a normal line of a transparent substrate; and a light modulation layer including a bulk and a particulate each having an optical anisotropy. Optical axes AX | 09-05-2013 |
20130258711 | LIGHTING UNIT, DISPLAY, AND THREE-DIMENSIONAL DISPLAY - In a scan system, a lighting unit, a display, and a three-dimensional display that have all of high luminance, low power consumption, and high reliability of a circuit board are provided. A light modulation device bonded to a light guide plate is provided with a light modulation layer exhibiting scattering property or transparency to light propagating through the light guide plate. The light modulation layer is interposed between a lower electrode that is configured of a plurality of partial electrodes extending in a direction parallel to a light incident surface and a sheet-like upper electrode. A drive circuit sequentially drives the plurality of partial electrodes to scan a region exhibiting the scattering property of the light modulation layer in a direction orthogonal to the light incident surface. | 10-03-2013 |
20140055835 | ILLUMINATION DEVICE AND DISPLAY UNIT - An illumination device capable of suppressing formation of a double image in three-dimensional display, and a display unit including the illumination device are provided. In a light modulation device bonded to a light guide plate, a scattering region that scatters light propagating within the light guide plate, and a transmissive region that allows light propagating within the light guide plate to pass therethrough are formed through control of an electric field. The scattering region scatters light to generate linear illumination light. A reflector is provided directly below the light modulation device. The reflector reflects light, which is part of the scattered light generated in the scattering region and is emitted to a reflector side, to generate reflected light to be focused directly below the scattering region. | 02-27-2014 |
20140192285 | ILLUMINATION UNIT AND DISPLAY UNIT - There are provided an illumination unit capable of reducing formation of a double image in three-dimensional display and a display unit including the same. An illumination optical system configured to generate linear illumination light formed by two-dimensionally arranging a plurality of linear illumination light beams or a plurality of point-like illumination light beams, and a reflective plate configured to reflect the linear illumination light are included. The reflective plate reflects the linear illumination light to or close to a plane passing through a part that generates the linear illumination light and being perpendicular to a plane including the reflective plate. | 07-10-2014 |