Koninklijke Philips Corporation N.v.

Boudewijn Michael Esser

Wanda Susanne Kruijt

Jan Marinus Van Oostveen

Adrianus Christianus Wilhelmus Custers

A liquid crystal display includes a backlight device which having a housing in which at least one tube-like fluorescent lamp is present. The housing forms a substantially dust-proof space. Part of the lamp extends outside the housing through a wall of the housing, which wall abuts against the lamp in a substantially dust-tight manner at the location where the lamp passes through the wall.

Liquid crystal display, backlight of such display, and a method of lighting a liquid crystal display

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

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Eindhoven, Netherlands

Boudewijn Michael Esser