Optical element for a LCD display

Details Optical element for a LCD display Optical element for a LCD display

2006-09-05

2006-09-05

Robinson, Mark A. (Department: 2872)

Illumination

Light fiber, rod, or pipe

Illuminating or display apparatus

C349S062000

Reexamination Certificate

active

07101071

ABSTRACT:
An optical element for a display unit comprising a first rigid, transparent plate (9b) and at least one flexible optical foil (5), wherein the foil (5) is held to the plate (9b) by means of an underpressure created, for example, by a suction device (17).The optical element according to the invention overcomes the problem of wrinkling foils by creating an underpressure that presses the foil (5) against the rigid plate (9b), thereby preventing the foil from wrinkling.According to an embodiment of the invention, the optical element further comprises a second rigid, transparent plate (9a), said optical foil is arranged between the first and second plates, and the plates (9a,9b) are held together by means of underpressure.

REFERENCES:
patent: 5247390 (1993-09-01), Hed
patent: 6496238 (2002-12-01), Greene et al.
patent: 0 816 901 (1998-01-01), None

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