Patent ID: 8922725

Claim:
A 3D image system, the 3D image system comprising a liquid crystal display monitor and 3D glasses, characterized in that the liquid crystal display monitor comprises a backlight module and a ½λ wave plate, the ½λ wave plate is utilized for converting lights emitted by the backlight module into linear polarized lights; the 3D glasses comprise a first ¼λ wave plate for receiving the linear polarized lights emitted by the ½λ wave plate and converting the linear polarized lights into circular polarized lights, a second ¼λ wave plate for converting the circular polarized lights emitted by the first ¼λ wave plate into linear polarized lights, and a linear polarizer for filtering the linear polarized lights emitted by the second ¼λ wave plate and transmitting the filtered lights to left and right eyes correspondingly; wherein the second ¼λ wave plate is disposed between the first ¼λ wave plate and the linear polarizer, a slow axis of the first ¼λ wave plate is parallel with a slow axis of the ½λ wave plate, and a thickness of the first ¼λ wave plate is ranged from 0.1 mm to 0.3 mm.