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| Thread ID: 89989 | 2008-05-19 01:58:00 | Rear-projection TV | ubergeek85 (131) | PC World Chat |
| Post ID | Timestamp | Content | User | ||
| 670634 | 2008-05-19 01:58:00 | I have an Older RPTV, nearing it's life expectancy. It used 3 CRT's to form a monster 62" image, however, it's almost on it's last legs. I'm thinking, when it goes, could I take out the CRT's, power supplies, almost everything, just leave the frame, mirror, screen, etc, and put three identical LCD screens in the same place as the CRT's, and if need be, change them to externally backlit. Googling finds nothing similar, so I thought maybe youse guys would know if this would be feasible (or even reasonable). Thanks. | ubergeek85 (131) | ||
| 670635 | 2008-05-20 01:39:00 | The CRTs in a projection TV are very high intensity (and small) ones, with liquid cooling . A triple lens system generates the big picture . You could put three (tiny) LCD screens in place of the CRTs . But it would be expensive, and give you an invisible picture . :) The light intensity is just not high enough . Even if you changed the lens system you'ld finish up with a non working TV . Have you seen the LCD screens designed to be used with overhead projectors? That uses the 200W+ halogen bulb of the OHP for backlight, and don't produce a very big and bright picture . Convert the set to a fish tank . :badpc: |
Graham L (2) | ||
| 670636 | 2008-05-20 01:44:00 | Ah well. I guess I'll convert it into a giant frensel lens of death (www.instructables.com) | ubergeek85 (131) | ||
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