Patent ID: 8279395
Filing Date: 2012-10-02
Classification: G02F,H04N

Abstract:
1. A liquid crystal shutter lens, comprising: a first polarizer having an absorption axis oriented in a first direction; a second polarizer having an absorption axis oriented in a second direction and substantially orthogonal to the first direction; a super-twisted nematic (STN) liquid crystal (LC) cell positioned between the first polarizer and the second polarizer, wherein the STN LC cell has a first buffing direction, and wherein the STN LC cell has a second buffing direction substantially 270 degrees from the first direction; a first compensator element between the first polarizer and the second polarizer, wherein the first compensator element is a first biaxial compensator, wherein the first biaxial compensator element is between the first polarizer and the STN LC; and a second biaxial compensator element between the second polarizer and the STN LC, wherein the second biaxial compensator has a slow axis oriented at an angular range of zero to ten degrees relative to the absorption axis of the second polarizer.