Method of manufacturing a liquid crystal display having a patterned retardation film
View Patent ↗A liquid crystal display includes a pair of substrates and a liquid crystal layer interposed between the substrates and has a reflective area and a transmissive area. At least one of the substrates is provided with a retardation film whose phase difference differs between the reflective area and the transmissive area. Alternatively, at least one of the substrates is provided with a retardation film whose slow axis differs between the reflective area and the transmissive area.
1. A method for manufacturing a liquid crystal display (1) which has a first substrate positioned opposite a second substrate, a liquid crystal layer interposed between the substrates and a polarizer formed on a surface of the second substrate not facing the first substrate and (2) which has a reflective area and a transmissive area, the method comprising the steps of:
forming an alignment film on the first substrate;
forming a reflective-area layer which serves as a retardation film on the alignment film; and
patterning the retardation film such that the retardation film remains only in the reflective area,
wherein,
displayed images are viewable on said first substrate,
the liquid crystal layer has a phase difference of λ/4 in the reflective area and a phase different of λ/2 in the transmissive area when no voltage is applied or when a voltage is applied,
the alignment film has an alignment direction of 45 degrees with respect to the transmission axis of the polarizer in the reflective area and an alignment direction which is parallel to the transmission axis of the polarizer in the transmissive area.
2. A method for manufacturing a liquid crystal display according to claim 1 , wherein the retardation film is composed of a liquid crystal polymer.
3. A method for manufacturing a liquid crystal display according to claim 2 , wherein the liquid crystal polymer is obtained by curing an ultraviolet-curable liquid crystal monomer in a nematic phase.