Three-dimensional image display apparatus

Details Three-dimensional image display apparatus Three-dimensional image display apparatus

Filed on

2005-09-13

Date issued

2005-09-13

Examiner

Nguyen, Phu K. (Department: 2673)

Patent Class

Computer graphics processing and selective visual display system

SubClass

Computer graphics processing

SubSubClass

Three-dimension

Other Related Categories

C348S042000, C348S051000

Type

Reexamination Certificate

Status

active

Patent number

06943788

Description

ABSTRACT:
A three-dimensional image display apparatus is provided. The three-dimensional image display apparatus, which includes an image forming display flat panel and a lens unit that is disposed in front of the image forming display flat panel and converts images projected from the image forming display flat panel into three-dimensional images. The lens unit includes a set of diffractive optical devices, each of which includes a plurality of diffractive grating elements that are parallel to one another and are disposed above the image forming display flat panel. Accordingly, the three-dimensional image display apparatus uses diffractive optical devices, each of which is composed of diffractive grating elements having very narrow widths, thereby displaying two- and three-dimensional images of good quality.

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