Patent · US Active

Illumination unit including light modulation layer and display unit

US9395573B2 · kind B2 · utility

1Cited by

0References

20Claims

0Family size

Assignee

SONY GROUP CORPORATION · JP

Inventors

Akira Ebisui · Yokohama, JP
Harumi Sato · Rifu, JP
Kentaro Okuyama · Tokyo, JP
Shogo Shinkai · Yokohama, JP

Key dates

Filing date	Apr 30, 2013
Grant date	Jul 19, 2016
Priority date	—
Expiry date	Apr 30, 2033

Classification

Technology area (CPC G)Physics
CPC primaryG02F2203/62
WIPO fieldOptics
WIPO sectorInstruments

Abstract

Provided is an edge light illumination device, in which a light modulation layer includes: a first region having optical anisotropy and a relatively high responsiveness to an electrical field; and a second region having optical anisotropy and a relatively low responsiveness to the electrical field. When denoting dispersal, the light modulation layer satisfies the formulae A>B>C and A1/C1<A2/C2.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.