Liquid crystal display and method of driving liquid crystal display
AssigneeNEC Corporation
InventorsMasaki Satou, Kazumi Kobayashi
Life of this patent
Estimating the term…
Abstract
There is provided a liquid crystal display including (a) a liquid crystal layer, (b) substrates sandwiching the liquid crystal layer therebetween, and (c) pixels arranged in a matrix on at least one of the substrates, an angle φ formed by steps on formed on an inner surface of the substrates with which the liquid crystal layer makes contact, an interval M between the steps, a height H of the steps, and a pre-tilt angle θ of liquid crystal in the liquid crystal layer, being controlled so that the following equation is established. (H/M)×(φ/θ)≦0.018 The liquid crystal display prevents display defect caused by steps formed on inner surfaces of substrates.
Claims12
A liquid crystal display comprising:
- (a) a liquid crystal layer;
- (b) substrates sandwiching said liquid crystal layer therebetween;
- and
- (c) pixels arranged in a matrix on at least one of said substrates, display defect caused by alignment defect being prevented by controlling parameters including (a) an angle formed by steps formed on an inner surface of said substrates with which said liquid crystal layer makes contact, (b) an interval between said steps, (c) a height of said steps, and (d) a pre-tilt angle of liquid crystal in said liquid crystal layer.
A liquid crystal display comprising:
- (a) a liquid crystal layer;
- (b) substrates sandwiching said liquid crystal layer therebetween;
- and
- (c) pixels arranged in a matrix on at least one of said substrates,
- an angle φ formed by steps on formed on an inner surface of said substrates with which said liquid crystal layer makes contact, an interval M between said steps, a height H of said steps, and a pre-tilt angle θ of liquid crystal in said liquid crystal layer, being controlled so that the following equation is established:
- (H/M)×(φ/θ)≦0.018.
A method of preventing display defect caused by alignment defect in a liquid crystal display, comprising the step of controlling parameters including (a) an angle formed by steps formed on an inner surface of said substrates with which said liquid crystal layer makes contact, (b) an interval between said steps, (c) a height of said steps, and (d) a pre-tilt angle of liquid crystal in said liquid crystal layer.
A method of preventing display defect caused by alignment defect in a liquid crystal display, comprising the step of controlling an angle φ formed by steps on formed on an inner surface of said substrates with which said liquid crystal layer makes contact, an interval M between said steps, a height H of said steps, and a pre-tilt angle θ of liquid crystal in said liquid crystal layer so that the following equation is established.
- (H/M)×(φ/θ)≦0.018.
Dependencies are inferred from the claim text.