Abstract:
A directional backlight is disclosed. The directional backlight has a directional backplane that has a plurality of directional pixels to scatter a plurality of input planar lightbeams into a plurality of directional lightbeams. Each directional lightbeam has a direction and angular spread controlled by characteristics of a directional pixel in the plurality of directional pixels. A modulation layer having a plurality of modulators modulates the plurality of directional lightbeams. The directional backlight can be used to generate a 3D image with multiple views by specifying the characteristics of the directional pixels in the directional backplane.
Abstract:
Una retroiluminación direccional (400, 500, 700, 800, 900, 1100), que comprende: una pluralidad de fuentes de luz (405a-h, 505-515, 705-715, 805-815, 905-915, 1110-1120) para generar una pluralidad de haces de luz planos de entrada (420a-h); y un plano de fondo direccional (425,535, 735, 835, 935, 1105) que comprende una losa de material transparente que tiene una pluralidad de píxeles direccionales (430, 540-550, 740, 840, 940), estand la pluralidad de píxeles direccionales configurados para dispersar cada uno de la pluralidad de haces de luz planos de entrada en una pluralidad de haces de luz direccionales (435), en donde la pluralidad de haces de luz direccionales representa múltiples vistas de imagen que cuando se combinan forman una imagen 3D, en donde solo un haz de luz direccional de la pluralidad de haces de luz direccionales emerge de cada píxel direccional, cada píxel direccional de la pluralidad de píxeles direccionales que comprende una rejilla con patrón que comprende una pluralidad de ranuras sustancialmente paralelas e inclinadas, y configurada para dispersar un haz de luz plano de entrada de la pluralidad de haces de luz planos de entrada en dicho haz de luz unidireccional de la pluralidad de haces de luz direccionales, teniendo dicho haz de luz direccional una dirección y una extensión angular controlada por las características de la rejilla estampada.
Abstract:
Una luz de fondo basada en cuadrículas de difracción multihaz para producir una pluralidad de haces de luz correspondientes a diferentes vistas asociadas con una pantalla tridimensional, que comprende: una guía de luz (110) para guiar la luz (104) desde una fuente de luz (130); caracterizado por una cuadrícula de difracción multihaz (120) en una superficie de la guía de luz, la cuadrícula de difracción multihaz está configurada para acoplar una parte de la luz guiada utilizando un acoplamiento difractivo, y la parte acoplada de la luz guiada se aleja de la superficie de la guía de luz como una pluralidad de haces de luz (102), un haz de luz de la pluralidad que tiene una dirección angular principal diferente de otros haces de luz de la pluralidad.
Abstract:
Multibeam diffraction grating-based backlighting includes a light guide and a multibeam diffraction grating at a surface of the light guide. The light guide is configured to guide light from a light source. The multibeam diffraction grating is configured to couple out a portion of the guided light using diffractive coupling and to direct the diffractively coupled out portion away from the light guide as a plurality of light beams with different principal angular directions having directions corresponding to view directions of a multiview display.
Abstract:
A directional backlight is disclosed. The directional backlight has a plurality of light sources to generate a plurality of input planar lightbeams. The plurality of input planar lightbeams illuminates a directional backplane that has a plurality of directional pixels to scatter the plurality of input planar lightbeams into a plurality of directional lightbeams. Each directional lightbeam has a direction and angular spread control led by characteristics of a directional pixel in the plurality of directional pixels. The directional backlight can be used to generate a 3D image by speci fying the characteristics of the directional pixels in the directional backplane.
Abstract:
Multibeam diffraction grating-based backlighting includes a light guide and a multibeam diffraction grating at a surface of the light guide. The light guide is to guide light from a light source. The multibeam diffraction grating is to couple out a portion of the guided light using diffractive coupling and to direct the coupled out portion away from the light guide as a plurality of light beams with different principal angular directions.
Abstract:
A directional backlight is disclosed. The directional backlight has a directional backplane that has a plurality of directional pixels to scatter a plurality of input planar lightbeams into a plurality of directional lightbeams. Each directional lightbeam has a direction and angular spread controlled by characteristics of a directional pixel in the plurality of directional pixels. A modulation layer having a plurality of modulators modulates the plurality of directional lightbeams. The directional backlight can be used to generate a 3D image with multiple views by specifying the characteristics of the directional pixels in the directional backplane.