Optical sheet stack and liquid crystal display device
US7961278B2 · kind B2 · utility
5Cited by
5References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 7, 2007 |
| Grant date | Jun 14, 2011 |
| Priority date | — |
| Expiry date | Mar 11, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2202/28
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
There is provided an optical sheet stack which includes a first optical sheet having a large number of irregularities consecutively arranged on one surface thereof, and a second optical sheet stacked thereon. In the optical sheet stack, the second optical sheet has, on a bonding surface thereof, an adhesive layer bonded with apexes of the irregularities, and while assuming pitch of arrangement of the irregularities as P, and width of bonding of each apex of the irregularities bonded to the adhesive layer as Pw, the relation of 0<Pw/P≦0.2 is satisfied.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.