Minimum-Error Splitting Algorithm for a Dual Layer LCD Display-Part II: Implementation and Results

A dual layer liquid crystal display (LCD) is able to achieve a high dynamic range by stacking two liquid crystal panels one on top of the other over an enhanced backlight unit. However, the finite distance between the two panels inevitably introduces a parallax error when the display is observed off-axis, and the dynamic range limitations of the individual panels introduce a reconstruction error near sharp edges in the input image. In Part I, we have formulated the image splitting as a constrained optimization problem in which a joint minimization of the parallax error and the visibility of the reconstruction error is performed. In Part II, we describe one possible numerical method which solves the optimization problem at a low computational cost. We also describe in more detail the characteristics of the prototype display which has been built by FIMI-Philips. We finally present some results and an evaluation of the errors introduced by the proposed splitting algorithm.