BASE MATERIAL FOR DISPLAY, WITH HIGH VOLTAGE HOLDING RATE, AND WITH RETARDATION CONTROLLING FUNCTION ATTACHED THERETO

摘要

PROBLEM TO BE SOLVED: To provide a base material for a display of which the liquid crystal layer is more certainly prevented from mixing in of impurities such as ionic substances, and a liquid crystal display which is excellent in display quality even in displaying under high temperature and high humidity for a long time interval.

SOLUTION: The base material for the display includes a substrate, and a retardation controlling function layer constructed with a liquid crystalline polymer of which the alignment state is fixed with three dimensional cross-linking, wherein the retardation controlling function layer has been subjected to forced impurity extraction treatment in a state of brought into contact with the liquid crystal layer, and subsequently the voltage holding rate in the liquid crystal layer is made to be ≥90% on voltage application. The liquid crystal display device is constructed by placing the retardation controlling function layer in the base material for the display in the vicinity of the liquid crystal layer in the display.

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