LIQUID CRYSTAL DISPLAY ELEMENT

Japanese Patent JPH0239126

A

PURPOSE:To obtain effective contrast and a wide visual field angle even in a high time division driving by setting up the orientation processing direction of one base to a direction obtained by rotating the orientation processing direc tion of the other base in the same direction as the twisting direction of a liquid crystal molecular array. CONSTITUTION:The orientation processing direction of a projection side base 2 is set up to a direction obtained by rotating the orientation processing direc tion A1 of an incident side base in the same direction as the twisting direction T of the liquid crystal molecular array. When the array states of liquid crystal molecules (a) between both the bases are developed along the twisting direction, the liquid crystal molecules (a) are arrayed so that the tilt directions of the liquid crystal molecules (a) on both the bases are reversed from each other and the tilt angles of the liquid crystal molecules (a) are gradually reduced in accordance with separation from the surfaces of the bases. Thereby, an optical change against an impressed voltage is increased and the characteristic of a threshold can be sharpened without reducing response speed. Thus, effective contrast and a wide visual field angle can be obtained even in high time division driving.

YOSHIDA TETSUSHI
KOJIMA KEN
ITAKURA MIKIYA
MOTAI ATSUSHI
AOKI TOSHIHIRO

JP19026988A

February 08, 1990

July 29, 1988

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CASIO COMPUTER CO LTD

G02F1/1337; (IPC1-7): G02F1/1337

Takehiko Suzue (2 outside)

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