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Optimization of luminance for optical‐mode‐interference (OMI) displays
Author(s) -
Li Jianlin,
Kelly Jack R.,
Hoke Charles,
Bos Philip J.
Publication year - 1996
Publication title -
journal of the society for information display
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.578
H-Index - 52
eISSN - 1938-3657
pISSN - 1071-0922
DOI - 10.1889/1.1984996
Subject(s) - brightness , optics , luminance , contrast ratio , liquid crystal display , interference (communication) , materials science , pixel , viewing angle , chromaticity , dot pitch , optoelectronics , computer science , physics , telecommunications , channel (broadcasting)
— Low‐Δ nd SBE displays are optimized for brightness using LCD optics software. These low‐Δ nd (about 0.5 to 0.6 μm) SBE displays, or optical‐mode interference (OMI) displays, have the inherent qualities of large cell‐gap tolerances and low coloration without an additional film compensator. The 270° OMI display was found to produce the largest off‐state brightness, greatly improved over current OMI displays. The 270° OMI display was also found to have the best off‐axis viewing angle with respect to chromaticity changes and contrast ratio. Single‐pixel devices with various twist angles verified the optimization. An optimized 270°‐twist OMI device, which shows no striped texture, was constructed by using the polymer‐stabilization technique with a rubbed standard polyimide. The data from the 270° OMI single‐pixel device demonstrate the steepest threshold on the electro‐optic curves.