Phase-separation high molecular weight polymer adhesive structures in a flexible liquid crystal display

摘要

A liquid crystal display (LCD) includes a first insulating substrate (210), a second insulating substrate (110) arranged opposite to the first insulating substrate, a liquid crystal layer (3) arranged between the first insulating substrate and the second insulating substrate, a spacer (321,322) which defines and maintains a substantially uniform gap between the first insulating substrate and the second insulating substrate, and a high molecular weight layer (331) which is provided on a surface of the second insulating substrate and attaches the spacer to the second insulating substrate.The highmolecular weight polymer layer (331) is formed by phase separation from a mixture of precursor (monomer) and liquid crystal solution under UV irradiation. The polymer binds the spacer (321) to the substrate to finish the cell. The method of adhering the substrate is particularly applicable to flexible LCDs having plastic substrates. The spacer (321) divides the display into a lattice of cells or stripes. In an alternative embodiment the spacer consists of parallel walls (322) and the cells are finished by exposing the polymer precursor/LC mixture perpendicularly to the spacer walls (332).