Patent ID: 7859632

Claim:
A display device, comprising: a first substrate; a second substrate facing the first substrate; first to third electrodes formed on the first substrate; a fourth electrode formed on the second substrate, a liquid crystal layer formed between the first and second substrates; a first polarizer formed on the surface of the first substrate; and a second polarizer formed on the surface of the second substrate, wherein the first and second substrates include a main display region and an assistance display region, and wherein the first and the second electrodes form a horizontal electric field that is substantially parallel to the surfaces of the first and second insulating substrates, and the third and fourth electrodes form a vertical electric field that is substantially perpendicular to the surfaces of the first and second substrates, wherein biaxial nematic liquid crystal molecules of the liquid crystal layer include a first major axis and a second portion having a second major axis, and wherein the transmission axis of the first polarizer crosses the transmission axis of the second polarizer, and wherein the transmission axis of the first polarizer is parallel to the first major axis and the transmission axis of the second polarizer is parallel to the second major axis.