Screen Transmissive, Reflective and Transflexive

Screen LCD I can be used in two transmissive and reflective called modalities. The transmissive screen of type is illuminates and comes seen to you on one side from the other. In practical a light it comes posizionata on the back of the screen and the crystals liquids act from filter making to only pass the wished chromatic member. In this way they obtain screen much luminous, of other song, but the light source often consumes more energy than that demand from the screen in himself. This screen has a good leggibilità in conditions of insufficient light acclimatizes them, while they strongly become little visible in conditions lighting system, turning out adapted for the use in inner.

Reflective screen LCD of type uses the present light in the atmosphere that comes reflected from one mirror place behind the screen. This screen more low has a contrast regarding the transmissive LCD, in fact the light is forced to pass two times through the filter. The main advantage of this type of screen is that the absence of a source of artificial light maintains to the energetic consumptions many bottoms. A small screen LCD consumes little therefore that simple photovoltaic cell can be fed from one. This screen lighting system has a good leggibilità in conditions strongly acclimatizes them, while they turn out leggibili less and less to diminishing of the external lighting system.

The Transflexive screen tries to join the better characteristics of the Transmissive and the Reflective. They have a seed-mirror place behind the display, in a position to reflecting the frontal light (like the reflective), but to make to pass to the coming from light from an illuminator place in the posterior part (like the trasmissive). This type of display is gone diffusing quickly, above all in the apparatuses furnish (cellular telephones and palmari computers), for its good leggibilità in all the light conditions.