Patent ID: 9181479
Filing Date: 2015-11-10
Classification: B32B,C08F,C09K,G02F,Y10T

Abstract:
1. A retardation element, which comprises a blend of a liquid crystalline compound and at least one compound selected from the group consisting of a compound represented by the following formula (1), a compound represented by the following formula (2) and a compound represented by the following formula (3): wherein in the formula (1), n represents an integer of 3 to 10 and R in the formula (2), R in the formula (3), R in the formulas (1) to (3), R wherein the retardation element has excellent heat resistance, exhibits little variation in its retardation value in high-temperature atmospheres, and can maintain stable optical properties, wherein the liquid crystalline compound is a polymerizable liquid crystal and said polymerizable liquid crystal is polymerized, and wherein the polymerizable liquid crystal is a polymerizable liquid crystal represented by the following formula (4):