Liquid crystal color display screen comprising a phosphor layer
AssigneeKoninklijke Philips Electronics N.V.
InventorsHelmut Bechtel, Hans Nikol, Cornelis Ronda, Thomas Justel
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Abstract
A liquid crystal color display screen, which is provided with an electro-optical medium, two parallel transparent substrates by which the electro-optical medium is flanked, means for influencing the transmission state of the electro-optical medium, a phosphor layer comprising at least two phosphors on the first substrate, a radiation source for emitting radiation having a maximum emission at a wavelength λ1<360 nm, which radiation source is situated at the side of the second substrate, and means for transforming the radiation having a maximum emission at a wavelength λ1<360 nm to radiation having a maximum emission at a wavelength λ2>360 nm.
Claims8
A liquid crystal color display screen, which is provided with an electro-optical medium, two parallel transparent substrates by which the electro-optical medium is flanked, means for influencing the transmission state of the electro-optical medium, a phosphor layer comprising at least two phosphors on the first substrate, a radiation source for emitting radiation having a maximum emission at a wavelength λ1<360 nm, which radiation source is situated at the side of the second substrate, and means for transforming the radiation having a maximum emission at a wavelength λ1<360 nm to radiation having a maximum emission at a wavelength λ2>360 nm.
Dependencies are inferred from the claim text.