3D显示模组的设计与优化.pdf

Van Berkel et al, Characterisation ….3D-LCD… Published Proc SPIE vol 3012 pp179-187 (1997) 1/8 CHARACTERISATION AND OPTIMISATION OF 3D-LCD MODULE DESIGN Cees van Berkela and John A Clarke. Philips Research Laboratories, UK 1. Abstract Autostereoscopic displays with flat panel liquid crystal display and lenticular sheets are receiving much attention. Multiview 3D-LCD is truly autostereoscopic because no head tracking is necessary and the technology is well poised to become a mass market consumer 3D display medium as the price of liquid crystal displays continues to drop. Making the viewing experience as natural as possible is of prime importance. The main challenges are to reduce the picket fence effect of the black mask and to try to get away with as few perspective views as possible. Our solution is to ‘blur’ the boundaries between the views. This hides the black mask image by spreading it out and softens the transition between one view and the next, encouraging the user to perceive ‘solid objects’ instead of a succession of flipping views. One way to achieve this is by introducing a new pixel design in which the pixels are slanted with respect to the column direction. Another way is to place the lenticular at a small (9.46°) angle with respect to the LCD columns. The effect of either method is that, as the observer moves sideways in front of the display, he always ‘sees’ a constant amount of black mask. This renders the black mask, in effect, invisible and eliminates the picket fence effect. 2. Introduction Active Matrix Liquid Crystal Displays and lenticular sheets provide a straightforward and optically efficient way of making high quality 3D displays1,2. In a previous paper we have presented some 3D-LCD prototype designs that were suitable for individual or professional use3. In this paper we consider how the current generation of SVGA colour LCDs can be used to create a 3D display for general use/ Multiview, lenticular 3D-LCD is well poised to become a mass