Philips treibt's multicolored: the most colored television of the world. The correct representation of colors is with electronic pictures a delicate thing. Until today no screen or projector can really show all tones of the visible spectrum; than this spectrum the range of the colors occurring in nature is somewhat smaller, but also covers things such as gold or magenta. The color extent of the television represents a still substantially smaller cutout. It is co-ordinated with that, what one can show with the phosphorus mixtures of a picture tube, is thus clearly under the color extent of 35-mm-Film. Nevertheless many manufacturers of projectors or LCD monitors would be glad to be able to reach at least the tube spectrum. Philips states now to be able to bring with conventional projection lamps colors never seen on the screen or the canvas. Because the dilemma so far lies in the filtering, which is always a compromise between light achievement and chroma: In order to meet for example red accurately, one must filter all blue and yellow portions; if one does that, only a very narrow-band portion remains - the red filter lets more, is pure red through already no longer possible, the colour tended usually toward orange.
Genoa Logo: magenta, blue, cyanogen, green, red and yellow unites.
Philips wants to solve this problem by the fact that one filters more than three colors. Additionally to red, green and blue Philips's will introduce also filters for cyanogen and Magenta. Thus the individual tones can become sort-purer, and also the possibilities for mixing tones become much larger. The technology in addition is to come from the Israeli company Genoa Color Technologies, a small company into Herzlia (or Herzelia), which wants to demonstrate their procedure for the first time in May to a conference publicly (with the Society OF information display ). Technicians, who saw it already times, turn out in swarms: "magenta is magenta and even gold can be represented", so Philips manager Joep Thomassen. To be used the Genoa technology is for the first time in LCoS televisions of the dutchmen; whether one then with five instead of three rotating prisms (see message of 8. 2. perhaps 2001) to work want to produce or with a prism two colors can, are still secret. A problem applies to certainly consider it: All electronic pictures are with the displays from today co-ordinated (or with from yesterday, the tube), a transmission one to one on the extended color area to fehlfarben would lead. Here it applies to develop a color space conversion, which deals carefully with the new possibilities, but her also does not give away. A procedure for it had itself patented laser TV developer Christian hard Deter (ex VEB Zeiss Jena, ex cutter); also lasers or light emitting diodes can represent substantially more colors than tubes. One will have to think in foreseeable time to extend the color area of electronic pictures clearly.
Example: Did you think already times about it, why one calls the German flag black-red-golden, it however always contains yellow instead of gold? Because gold in medialer representation, all the same whether print or TV is, in each case a dirty yellow (26. 4. 2003)
Uneasy triangle: Within this area the colors of the visible spectrum move. In the center white is to be found, the mixture from all spectral portions. The curved external line consists of the pure colors, which have only one wavelength. The sRGB range corresponds in for instance the color area prescribed for PAL. NTSC is shifted against it more toward green.