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US 12,111,532 B2Granted
Optical body and display device including same
AssigneeToray Advanced Materials Korea Inc.
InventorsSeung Jin Ko, Bae Keun Yoo, Jong Dae Sung
Life of this patent
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Abstract
The present invention relates to an optical body and a display device including the same, and more specifically, the present invention relates to an optical body, which can minimize optical loss thereof and maximize luminance enhancement thereof, and a display device including the same.
Claims15
An optical body, comprising:
- a substrate;
- and
- a plurality of dispersions dispersed and comprised inside the substrate,
- wherein the plurality of dispersions have an average aspect ratio of 0.5 or less, and the number of dispersions having a cross-sectional area of 0.3 μm2 or less is 80% or more of the total dispersions;
- wherein the optical body satisfies Conditions (1) and (2) below:
- (1) glass transition temperature (Tg) of dispersion>glass transition temperature (Tg) of substrate,
- (2) the difference in the glass transition temperatures of a dispersion and a substrate is within a range of 3 to 9° C.;
- and
- wherein the glass transition temperature (Tg) of the substrate is 110° C. to 130° C.
6 more elements
An optical body, comprising:
- a substrate;
- and
- a plurality of dispersions dispersed and comprised inside the substrate,
- wherein the plurality of dispersions have an average cross-sectional area of 1 μm2 or less, and an aspect ratio dispersion coefficient of 40% or more according to Mathematical Formula 1 below:
- [
- Mathematical
-
- Formula
-
- 1
- ]
-
- Aspect
-
- ratio
-
- dispersion
-
- coefficient
-
- (
- %
- )
- =
- Standard
-
- deviation
-
-
- of
-
- aspect
-
- ratio
-
- of
-
- dispersion
- Average
-
- aspect
-
- ratio
-
- of
-
- dispertion
- ×
- 100
- ;
- wherein the optical body satisfies Conditions (1) and (2) below:
- (1) Glass transition temperature (Tg) of dispersion>Glass transition temperature (Tg) of substrate
- (2) The difference in the glass transition temperatures of a dispersion and a substrate is within a range of 3 to 9° C.;
- and
- wherein the glass transition temperature (Tg) of the substrate is 110° C. to 130° C.
52 more elements
Dependencies are inferred from the claim text.