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Rear-projection television (RPTV) is a type of large-screen television display technology. Until approximately 2006, most of the relatively affordable consumer large screen TVs up to 100 in (250 cm) used rear-projection technology. A variation is a video projector, using similar technology, which projects onto a screen.
TV or presentation Yes LCoS self-contained rear-projection Flat 110 [13] 279 TV: Yes LCoS front-projection Flat (limited only by brightness) TV or presentation Yes Laser self-contained rear projection Flat lenticular: 75 [14] 191 TV: Yes LED: Flat 279.92 [15] 711 Billboards, TV: Yes SED: Flat 55 [16] 140 Computer monitor, TV: Yes FED: Flat ...
A 140 cm (56 in) DLP rear-projection TV Large-screen television technology (colloquially big-screen TV) developed rapidly in the late 1990s and 2000s.Prior to the development of thin-screen technologies, rear-projection television was standard for larger displays, and jumbotron, a non-projection video display technology, was used at stadiums and concerts.
Rear projection DLP TVs are not as thin as LCD or plasma flat-panel displays (although approximately comparable in weight), although some models as of 2008 are becoming wall-mountable (while still being 10 to 14 in [250 to 360 mm] thick) [17] Replacement of the lamp in lamp-based units.
XBR is a line of LCD, OLED, Plasma, Rear Projection, and CRT televisions produced by Sony.According to Sony, XBR is an acronym for eXtended Bit Rate, although there is evidence that it originally stood for "Project X, Black Remote" which was meant to distinguish it from the then-standard line of Sony televisions. [1]
Krypton-85 is a gas and is found mixed in with the argon, which is in the arc tube of the lamp. [8] The thorium, which is a solid, is used in the electrodes. [8] These isotopes produce ionizing radiation of alpha and beta type. This radiation causes high ionization inside the lamp without being able to escape from the lamp. [6]