Back to results
US 2009/0213295 A1Published application
Lcd device
AssigneeKoninklijke Philips Electronics N.V.
InventorAdrianus Johannes Stephanes Maria De Vaan
Life of this patent
Estimating the term…
Abstract
The invention relates to a liquid crystal display device (10), comprising a spectral trim filter (18) arranged in the light path between the backlight system (14) and the LCD filter panel (12). The trim filter is adapted to reduce the amount of illumination light within selected wavelength ranges in order to enhance the color gamut of the display. The trim filter is also adjustable between a filtering state for wide gamut and a transmitting state for high brightness.
Claims15
A liquid crystal display device (10), comprising:
- a color filter panel (12);
- a backlight system (14) for sending illumination light onto said filter panel, wherein said filter panel is operative to selectively transmit desired colors of light from the backlight system (14) towards a viewer;
- and
- and adjustable spectral trim filter (18) arranged in the light path between the backlight system (14) and the filter panel (12), said trim filter being adapted to reduce the amount of illumination light within selected wavelength ranges in order to enhance the color gamut of the display.
1 more element
Dependencies are inferred from the claim text.