MULTIBEAM ELEMENT-BASED BACKLIGHT WITH MICROLENS AND DISPLAY USING SAME

• Main Authors: MA MING, FATTAL DAVID A, AIETA FRANCESCO
• Format: Patent
• Language: Chinese; English
• Published: 31.03.2020
• Subjects: BLASTING; DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; FREQUENCY-CHANGING; FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF; HEATING; LIGHTING; MECHANICAL ENGINEERING; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; WEAPONS

A multiview backlight and a multiview display employ a microlens to adjust directional light beams to have directions corresponding to respective different view directions of the multiview display. The multiview backlight includes a light guide configured to guide light as guided light, a multibeam element configured to scatter from the light guide a portion of the guided light as a plurality of directional light beams, and the microlens configured to adjust directions of the directional light beams. The multiview display further includes a multiview pixel configured to modulate the pluralityof directional light beams and provide a plurality of different views of the multiview display, the microlens being between the multibeam element and the multiview pixel. 多视图背光体和多视图显示器采用微透镜来调节定向光束以具有对应于多视图显示器的相应不同的视图方向。多视图背光体包括被配置为将光引导为引导光的光导，被配置为从光导散射引导光的一部分作为多个定向光束的多光束元件，以及被配置为调节定向光束的方向的微透镜。多视图显示器进一步包括被配置为调制多个定向光束并提供多视图显示器的多个不同视图的多视图像素，微透镜在多光束元件和多视图像素之间。