|English to German translations [PRO]|
Tech/Engineering - Engineering (general) / Displays, Anzeigen
|English term or phrase: louver|
4. The display device of claim 3 wherein the difference between the first collimating orientation and the second collimating orientation is about 90 degrees.
5. The display device of claim 1 wherein either light collimating film comprises alternating ***louver elements*** of light absorbing and light transmissive material.
Light collimating films are well known. One type of light control film, for example, is a thin plastic sheet incorporating closely-spaced, alternating ***micro-louvers***, or collimating elements, of light transmissive and light absorbing material. A second type of light control film, for example, is a generally transparent, thin plastic sheet provided with light collimating structures on one or both surfaces of the film.
Light control films have been used on computer screens and other fixed displays to protect the privacy of the user and to aid contrast enhancement. ***Louvers*** having a light collimating orientation in a generally vertical direction limit the side-to-side viewing angle of the display. ***Louvers*** having a light collimating orientation in a generally horizontal direction limit the top-to-bottom viewing angle of the display. Furthermore, light control films help to reduce reflections and glare from the display and to increase contrast by physically blocking ambient light from reaching the display screen. Examples of light collimating films suitable for use in the present invention are Light Control Film sold by 3M, St Paul, Minn.; ***louver films*** made by the skiving process described in U.S. Pat. No. 3,524,789; and light transmissive films which have grooves or channels that are filled or coated with a light absorbing material as described, for example, in U.S. Pat. No. 5,204,160.
würde doch auch den "collimating elements" entsprechen.
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