公开(公告)号：US20190196255A1

公开(公告)日：2019-06-27

申请号：US16325648

申请日：2017-06-13

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Kazuki KITAMURA ,  Hiroshi FUKUSHIMA ,  Norihiro ITO ,  Hirofumi KUBOTA ,  Masuyuki OTA

IPC: G02F1/1335 ,  G02F1/1339 ,  G02F1/1343 ,  E06B3/67

Abstract: Optical device includes first substrate being light transmissive, second substrate opposing first substrate and being light transmissive, and light distribution layer disposed between first substrate and second substrate and distributing incident light. Light distribution layer includes uneven structure portion having a plurality of projections repeated in the z axial direction parallel to the main face of first substrate, and optical medium portion containing a birefringent material and disposed to fill a plurality of recesses that are spaces between the plurality of projections. Light blocking component configured to block at least part of incident light is disposed in the plurality of recesses.