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US 12,202,230 B2Granted
Reddening-resistant layer
AssigneeLG Chem, Ltd.
InventorsJin Seok Byun, Yeong Rae Chang, Na Young Shin, Kyun Il Rah, Jae Pil Koo
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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.
Claims12
A reddening-resistant layer that is a void-containing layer or that comprises the void-containing layer,
- wherein the void-containing layer exhibits a peak within a scattering vector range of 0.06 to 0.209 nm−1 in a log value graph of scattering intensity of small angle X-ray scattering,
- wherein the void-containing layer includes at least one surface having a surface area ratio of 0.02 or more as measured by an atomic force microscope (AFM), and
- wherein the void-containing layer satisfies Equation 4:
- HL≤0.9×HP [Equation 4]
- wherein HL is a thermal diffusivity of a laminate of a polymer film and the void-containing layer formed on one side of the polymer film, and HP is the thermal diffusivity of the polymer film.
2 more elements
Dependencies are inferred from the claim text.