• 专利标题: Backlight, multiview display and method employing tapered collimator
  • 申请号: US16576685
    申请日: 2019-09-19
  • 公开(公告)号: US11048037B2
    公开(公告)日: 2021-06-29
  • 发明人: David A. FattalMing MaXuejian Li
  • 申请人: LEIA INC.
  • 申请人地址: US CA Menlo Park
  • 专利权人: LEIA INC.
  • 当前专利权人: LEIA INC.
  • 当前专利权人地址: US CA Menlo Park
  • 代理商 J. Michael Johnson
  • 主分类号: F21V7/04
  • IPC分类号: F21V7/04 F21V8/00
Backlight, multiview display and method employing tapered collimator
摘要:
A backlight and a multiview display employ a light guide having angle-preserving scattering feature and a tapered collimator. The angle-preserving scattering feature is configured to scatter a portion of guided light out of the light guide as emitted light. The tapered collimator is configured to collimate light provided by a light source as collimated light and to communicate the collimated light to the light guide to be guided as the guided light. The collimated light has a collimation factor configured to provide a predetermined angular spread of the guided light, the collimation factor being a function of a taper of the tapered collimator. The multiview display includes multiview pixels that include view pixels as well as the angle-preserving scattering feature that includes a multibeam element having a size that is comparable to a size of a view pixel.
信息查询
0/0