Abstract:
A projection type display device includes: a light source (21); a spatial light modulation element (25) for modulating the incident light according to the video signal applied and emitting it; an illumination optical system (23) for collecting light from the light source (21) and illuminating the spatial light modulation element (25); a projection lens (27) for projecting the emission light from the spatial light modulation element (25); light shading means (1) arranged for the spatial light modulation element (25) along the light path of the side of the illumination optical system (23) or the projection lens (27) so as to change the light shading amount of the light passing; and video signal correction means (3, 4, 5, 6) for performing correction of the video signal applied to the spatial light modulation element (25) according to the current light shading amount of the light shading means (1) for each of the regions into which the screen of the spatial light modulation element (25) is divided. Thus, it is possible to perform appropriate uniformity correction even when the light angle distribution emitted from the spatial light modulation element and reaching the screen changes.
Abstract:
In an optical apparatus a first multi-lens array (MLA) (131) forming an integrator optical system is arranged integrally at the light emitting part of a reflecting and condensing mirror (12) so as to function as a surface plate. Due to this, the distance between the effective reflecting part of the reflecting and condensing mirror and the first MLA can be shortened. As a result, as the optical path of the optical system becomes short, it becomes possible to make the optical system of a projector small. In addition, being formed integral to function as a surface plate of the reflecting and condensing mirror, the number of optical elements is reduced by one. Accordingly the loss of light due to surface reflection (Fresnel reflection) occurring on a boundary surface having a difference of refractive indexes is decreased, a larger amount of light can be directed to the SLM and the screen, therefore a projector of a high luminance is achievable.
Abstract:
In an optical apparatus a first multi-lens array (MLA) (131) forming an integrator optical system is arranged integrally at the light emitting part of a reflecting and condensing mirror (12) so as to function as a surface plate. Due to this, the distance between the effective reflecting part of the reflecting and condensing mirror and the first MLA can be shortened. As a result, as the optical path of the optical system becomes short, it becomes possible to make the optical system of a projector small. In addition, being formed integral to function as a surface plate of the reflecting and condensing mirror, the number of optical elements is reduced by one. Accordingly the loss of light due to surface reflection (Fresnel reflection) occurring on a boundary surface having a difference of refractive indexes is decreased, a larger amount of light can be directed to the SLM and the screen, therefore a projector of a high luminance is achievable.
Abstract:
A projection-type display device includes: a light source 21; a spatial light modulation element 25 which modulates incident light according to an applied image signal and emits the modulated light; an illumination optical system 23 which condenses light from the light source 21 and illuminates the spatial light modulation element 25; a projection lens 27 which projects the light emitted from the spatial light modulation element 25; shielding unit 1, positioned along the path of light on the side of either the illumination optical system 23 or the projection lens 27 with respect to the spatial light modulation element 25, and which can change the amount of shielding of transmitted light; and image signal correction units 3, 4, 5, and 6 which divide the picture plane of the spatial light modulation element 25 into a plurality of areas, and perform correction on the image signal applied to the spatial light modulation element 25 according to the current shielding amount of the shielding unit 1 for each of the plurality of areas. Accordingly, appropriate uniformity correction is performed even when there is a change in the angular distribution of light emitted from the spatial light modulation element and reaching the screen.
Abstract:
Eine Phasenmodulationsdatenerzeugungsvorrichtung gemäß der vorliegenden Erfindung ist mit Folgendem versehen: einer ersten Arithmetikeinheit, die basierend auf einem partiellen Beleuchtungsbildmuster, das ermöglicht, dass ein Zielbeleuchtungsbildmuster mit einer gewünschten Leuchtdichtenverteilung erzeugt wird, Basisphasenmodulationsmusterdaten berechnet, die ermöglichen, dass das partielle Beleuchtungsbildmuster durch ein optisches Phasenmodulationselement reproduziert wird; und eine Speicherungseinheit, die die Basisphasenmodulationsmusterdaten speichert, die durch die erste Arithmetikeinheit berechnet werden.
Abstract:
PROBLEM TO BE SOLVED: To provide a stereoscopic display optical device which reduces its weight without deteriorating its display performance.SOLUTION: An optical device includes a display section and a parallax separation section, disposed to face each other, and a spacer section sandwiched between the display section and the parallax separation section, and extending along the perimeters of the display section and the parallax separation section.
Abstract:
PROBLEM TO BE SOLVED: To provide a display device capable of preventing the generation of crosstalk.SOLUTION: The display device includes a display panel having a plurality of pixels, a backlight capable of partially illuminating the display panel, and a drive circuit for driving the display panel and the backlight. The drive circuit causes the display panel to display a three dimensional image by synchronizing the scanning of the display panel with the scanning of the partial illumination light of the backlight.
Abstract:
PROBLEM TO BE SOLVED: To provide a stereoscopic display device that improves quality of a display image.SOLUTION: The stereoscopic display device includes: a light barrier part including a plurality of open/close part groups comprising a plurality of open/close parts 12A, 12B and individually opening/closing at different timings between the groups; a composite image generation part that generates composite images (composite frame images FA, FB) of a plurality of systems corresponding to each of the open/close part groups, on the basis of a plurality of view point images with different points of view, according to the open/close timing of each of the open/close part groups; and a display part that displays the composite image of a corresponding system in synchronization with open/close motions of the open/close part groups. The composite image generation part generates a composite image of at least one system by interpolation.