Liquid crystal display device

摘要

An object is to provide a liquid crystal display device using a liquid crystal material exhibiting a blue phase, in order to enable a higher contrast. In a liquid crystal display device which includes a liquid crystal layer exhibiting a blue phase, a first structure body and a second structure body are provided over a first electrode layer (a pixel electrode layer) and a second electrode layer (a common electrode layer), respectively. The first structure body and the second structure body are insulators each having a higher dielectric constant than a liquid crystal material used for the liquid crystal layer, and are provided to project into the liquid crystal layer.

主权项

1. A liquid crystal display device comprising:
a first substrate; a pixel electrode layer and a common electrode layer over the first substrate; a liquid crystal layer over the pixel electrode layer and the common electrode layer, the liquid crystal layer containing a liquid crystal material; a second substrate over the liquid crystal layer; a first structure body which is provided over the pixel electrode layer and projects into the liquid crystal layer; and a second structure body which is provided over the common electrode layer and projects into the liquid crystal layer, wherein liquid crystal molecules in the liquid crystal layer are controlled in a direction parallel to the first substrate and the second substrate, and wherein each of a dielectric constant of the first structure body and a dielectric constant of the second structure body is within a range of 12 to 130.