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

• Published in: Journal of display technology Vol. 4; no. 4; pp. 391 - 397
• Main Authors: Guarnieri, G., Albani, L., Ramponi, G.
• Format: Journal Article
• Language: English
• Published: New York IEEE 01.12.2008; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Computational efficiency; Constraint optimization; Dynamic range; Errors; High dynamic range; Humans; image processing; Image reconstruction; Liquid crystal displays; liquid crystal displays (LCDs); medical images; Optimization methods; Panels; Parallax; Prototypes; Reconstruction; sparse matrices; Splitting; Stacking; variational methods; Visual system
• ISSN: 1551-319X; 1558-9323
• DOI: 10.1109/JDT.2008.2001748

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.