COLOR DISPLAY

The present invention relates to a color display device, comprising at least two light sources ( 16, 17 ), having different radiance spectra, and a liquid crystal light valve layer ( 14 ). The light sources ( 16, 17 ) are activated sequentially and the light valve layer is provided with driving sign...

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Bibliographic Details
Main Author ROOSENDAAL, SANDER, J
Format Patent
LanguageEnglish
French
German
Published 28.03.2007
Subjects
DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING
FREQUENCY-CHANGING
NON-LINEAR OPTICS
OPTICAL ANALOGUE/DIGITAL CONVERTERS
OPTICAL LOGIC ELEMENTS
OPTICS
PHYSICS
TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
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Summary:The present invention relates to a color display device, comprising at least two light sources ( 16, 17 ), having different radiance spectra, and a liquid crystal light valve layer ( 14 ). The light sources ( 16, 17 ) are activated sequentially and the light valve layer is provided with driving signals (d 1 , d 2 ) in such a way that it obtains a strong wavelength dependence. This allows the display device to produce primary colors without the provision of color filters. This provides a less complex display, which is suitable for mobile applications and provides high brightness.
Bibliography:Application Number: EP20050758450