Patent ID: 8582043
Filing Date: 2013-11-12
Classification: G02B,G02F

Abstract:
1. A 2D/3D switchable display device comprising: a backlight module for generating light, a liquid crystal display panel for showing an image based on the light from the backlight module, and a liquid crystal (LC) lens unit, the light emitting from the liquid crystal display panel being polarized light, the LC lens unit from an emitting surface to an incident surface orderly comprising: a plurality of bar-shaped concave lens; a plurality of bar-shaped LC convex lens, each LC convex lens corresponding to one of the bar-shaped concave lens, the plurality of LC convex lens comprising a transparent substrate, a conductive layer on the transparent substrate, and a first LC layer sandwiched between the concave lens and the transparent substrate, characterized in that: the conductive layer comprises a plurality of control electrodes shaped as bars which extends along a direction parallel to an extending direction of the bar-shaped LC convex lens, wherein the plurality of control electrodes are applied to a driving voltage to control an alignment of LC molecules inside the LC convex lens to adjust an equivalent refractive index of the LC convex lens larger or equaling to a first refractive index of the concave lens, the concave lens is a birefringence concave lens comprising a second LC layer composed of a plurality of liquid crystal molecules of which an alignment is perpendicular to the transparent substrate.