LIQUID CRYSTAL DISPLAY WITH SWITCHABLE VIEWING ANGLE AND METHOD OF VIEWING ANGLE CONTROL

摘要

An LCD with switchable viewing angle includes a first substrate, second substrate, and a liquid crystal layer. The first substrate is provided with a first electrode and a first alignment film thereon. The second substrate is provided with a second electrode, a third electrode and a second alignment film thereon. The liquid crystal layer is disposed between the first alignment film and the second alignment film, and includes a plurality of liquid crystal molecules. All of the liquid crystal molecules in the liquid crystal layer are tilted at the same pretilt angle relative to the alignment films. When no bias voltage is applied to the first electrode, the LCD shows a narrow viewing angle; and when a bias voltage is applied to the first electrode, the LCD shows a wide viewing angle.

主权项

1. An LCD (liquid crystal display) with a switchable viewing angle, comprising:
a first substrate being provided with a first electrode and a first alignment film thereon; a second substrate being provided with a second electrode, a third electrode and a second alignment film thereon, wherein one of the second electrode and the third electrode is a common electrode, and the other one of the second electrode and the third electrode is a pixel electrode; and a liquid crystal layer being disposed between the first alignment film and the second alignment film, the liquid crystal layer comprising a plurality of liquid crystal molecules, wherein the liquid crystal molecules are negative liquid crystal molecules, all of the liquid crystal molecules in the liquid crystal layer are tilted at the same pretilt angle relative to the alignment films; wherein when no bias voltage is applied to the first electrode, the LCD is displayed with a narrow viewing angle; and when a bias voltage is applied to the first electrode to generate a vertical electric field between the first substrate and the second substrate, the LCD is displayed with a wide viewing angle.