Laminated optical film, polarizing plate and liquid crystal...

Details Laminated optical film, polarizing plate and liquid crystal... Laminated optical film, polarizing plate and liquid crystal...

2011-03-29

2011-03-29

Robinson, Mark A. (Department: 2883)

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

C349S096000, C349S119000, C349S193000, C359S490020, C359S506000

Reexamination Certificate

active

07916251

ABSTRACT:
A laminated optical film including a first optical anisotropic layer, and a second optical anisotropic layer, wherein Rth1 of the first optical anisotropic layer, and Rth2 of the second optical anisotropic layer satisfy one of Relationships (1) and (2), andin-line-formulae description="In-line Formulae" end="lead"?ΔRth1≧0 nm and ΔRth2≦0 nm   (1)in-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?ΔRth1<0 nm and ΔRth2>0 nm   (2)in-line-formulae description="In-line Formulae" end="tail"?wherein a retardation value Rth of the laminated optical film as a whole in its thickness direction satisfies 50 nm≦Rth≦500 nm,where ΔRth1 denotes a value obtained by calculating the expression Rth1 (at a temperature of 50° C.)−Rth1 (at a temperature of 25° C.) concerning the first optical anisotropic layer, and ΔRth2 denotes a value obtained by calculating the expression Rth2 (at a temperature of 50° C.)−Rth2 (at a temperature of 25° C.) concerning the second optical anisotropic layer.

REFERENCES:
patent: 2007/0200977 (2007-08-01), Egi et al.
patent: 2009/0091694 (2009-04-01), Sasada
patent: 2006-039211 (2006-02-01), None

Affiliated with

Also associated with

Rating

Laminated optical film, polarizing plate and liquid crystal... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Laminated optical film, polarizing plate and liquid crystal..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Laminated optical film, polarizing plate and liquid crystal... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2688822