Patent application number | Description | Published |
20080316396 | LIQUID CRYSTAL DISPLAY APPARATUS - A liquid crystal display apparatus is provided. The liquid crystal display apparatus includes at least one incidence-side polarizer, a liquid crystal panel, at least one output-side polarizer, and a mechanism for turning each of the incidence-side polarizer and the output-side polarizer around an optical axis. The incidence-side polarizer is made of an inorganic material. The liquid crystal panel is provided for modulating the polarized state of light output from the incidence-side polarizer to output the modulated light. The output-side polarizer is made of an inorganic material for outputting the light incident from the liquid crystal panel. | 12-25-2008 |
20090135316 | PROJECTION IMAGE DISPLAY APPARATUS AND POLARIZATION CONVERTER - Disclosed is a projection image display apparatus which includes a light source; and an illumination optics including a phase difference plate. The illumination optics is configured to form an image on a liquid crystal panel with light beams emitted from the light source. The phase difference plate has a deviation in viewing angle characteristics and is arranged to yield a desirable phase difference for a light beam directed in a direction of high intensity among incident light beams distributed at various angles. | 05-28-2009 |
20090244455 | IMAGE DISPLAY APPARATUS AND OPTICAL COMPENSATION DEVICE - An image display apparatus includes a liquid crystal panel having a liquid crystal layer disposed between a pair of substrates, and an optical compensation plate pair including a first optical compensation plate and a second optical compensation plate, the first optical compensation plate being formed of a negative uniaxial crystal and the second optical compensation plate being formed of a positive uniaxial crystal. The optical compensation plate pair is configured such that an optical phase difference caused by a difference in thickness between the first optical compensation plate and the second optical compensation plate cancels an optical phase difference generated by the liquid crystal panel. | 10-01-2009 |
20120081622 | WAVE PLATE AND POLARIZATION CONVERSION ELEMENT, ILLUMINATION OPTICAL SYSTEM, AND IMAGE DISPLAY DEVICE THAT USE WAVE PLATE - Disclosed herein is a wave plate including: a first quartz plate configured to have a crystal optical axis inclined to a major surface; and a second quartz plate configured to have a crystal optical axis inclined to a major surface, the major surface of the second quartz plate being superimposed on the major surface of the first quartz plate, wherein an angle formed by the optical axis of the first quartz plate and the optical axis of the second quartz plate is 45 degrees in a front view seen from direction perpendicular to the major surface, and the optical axis of the first quartz plate is parallel to the optical axis of the second quartz plate in a top view seen from direction parallel to the major surface. | 04-05-2012 |
20120194768 | Wavelength plate, polarization conversion device using the same, illumination optical system, and image display apparatus - A wavelength plate includes: a first quartz plate unit including a plurality of quartz plates which have main surfaces disposed in the same plane and are jointed with each other; and a second quartz plate unit including a plurality of quartz plates which have main surfaces disposed on a main surface of the first quartz plate unit and are jointed with each other in a position different from a joint position of the first quartz plate unit. | 08-02-2012 |
20120307359 | POLARIZATION MODULE AND IMAGE DISPLAY APPARATUS - A polarization module includes: a polarizer; a plurality of first quarter-wave plates disposed over the polarizer such that their optical axes are tilted at 45 degrees with respect to the polarization axis of the polarizer; a plurality of second quarter-wave plates disposed over the polarizer such that their optical axes are tilted at 45 degrees with respect to the polarization axis of the polarizer in the direction opposite to the tilting direction of the optical axes of the first quarter-wave plates; and a transparent resin plate disposed over the plurality of first quarter-wave plates and the plurality of second quarter-wave plates and having optical isotropy. | 12-06-2012 |
20120320457 | POLARIZATION MODULE AND IMAGE DISPLAY APPARATUS - A polarization module including first quarter-wave plates disposed on a polarizer plate and having slow axes inclined to a polarization axis of the polarizer plate by 45 degrees. Second quarter-wave plates are disposed on the polarizer plate alternately with the first quarter-wave plates and have slow axes inclined to the polarization axis of the polarizer plate by 45 degrees but face away from the slow axes of the first quarter-wave plates. Half-wave plates are disposed on the first and second quarter-wave plates and are arranged in a direction that intersects the direction in which the first and second quarter-wave plates are arranged. | 12-20-2012 |
20150062701 | DISPLAY DEVICE, DISPLAY METHOD, AND MANUFACTURING METHOD OF COMPENSATION MEMBER - There is provided a display device including a lens which guides light from a light source to a display surface, and a compensation member, having an inside surface opposite to a lens surface of the lens divided into a plurality of two-dimensional regions, in which a direction of an advance axis or a delay axis is controlled for each of the regions. | 03-05-2015 |