Patent ID: 6108029
Filing Date: 2000-08-22
Classification: G02B,H04N

Abstract:
A dual-mode display system for 2D and 3D viewing comprising:a) image displaying means comprising a plurality of pixel columns to show a regular 2D and 3D viewing and to show an interleaved image composed from a right view and a left view of a scene for 3D viewing; andb) an LCD panel comprising a plurality of linear sections substantially parallel to the pixel columns of said image displaying means; said LCD panel being electronically operable in a first state for 2D viewing when all the linear sections are clear to transmit light and in a second state for 3D viewing when the linear sections are activated to form a parallax barrier having alternate opaque and clear linear strips, wherein said image displaying means and said LCD panel are disposed in an opposed relationship with a distance therebetween, and said clear linear strips in said second state are disposed at a spacing, said distance and said spacing being given respectively by formulae set forth below:d=(2n+1)p(D+d)/Sq=2p(D+d)/Dwhere ""d"" is said distance, ""n"" is zero or a positive integer, ""p"" is a spacing between adjacent ones of said pixel columns, ""D"" is a distance of a viewer from said image displaying means, ""S"" is a distance between right and left eyes of the viewer, ""q"" is said spacing between said clear linear strips in said second state.