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US 12,216,300 B2Granted
Optical laminate comprising an optical functional layer and a porous layer
AssigneeLG Chem, Ltd.
InventorsNa Young Shin, Kyun Il Rah, Jin Seok Byun, Yeong Rae Chang
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Abstract
The present disclosure relates to an optical laminate or a reddening-resistant layer. The present disclosure can provide an optical laminate that does not cause a so-called reddening phenomenon even when driven or maintained under extremely harsh conditions (e.g., very high temperature conditions), or a reddening-resistant layer applied thereto.
Claims11
An optical laminate, comprising:
- an optical functional layer;
- and
- a porous layer formed on at least one side of the optical functional layer,
- wherein the porous layer comprises a surface having a surface area ratio of 0.02 or more as measured by an atomic force microscope,
- wherein the porous layer comprises a binder and hollow particles,
- wherein the binder comprises a polymer derived from a polyfunctional acrylate having 2 to 10 polymerizable functional groups,
- wherein the hollow particles have a D10 particle diameter in a range from 25 to 50 nm, a D50 particle diameter in a range from 50 to 100 nm and a D90 particle diameter in a range from 100 nm to 200 nm in a weight cumulative curve of particle size distribution.
4 more elements
Dependencies are inferred from the claim text.