{"id":2397,"date":"2003-08-12T11:49:34","date_gmt":"2003-08-12T01:49:34","guid":{"rendered":"http:\/\/hifi-writer.com\/wpblog\/?p=2397"},"modified":"2010-09-30T15:46:23","modified_gmt":"2010-09-30T05:46:23","slug":"its-about-time-the-perfect-projector-for-pal-dvds","status":"publish","type":"post","link":"http:\/\/hifi-writer.com\/wpblog\/?p=2397","title":{"rendered":"It’s about time: the perfect projector for PAL DVDs?"},"content":{"rendered":"

\"ScreenPlayIn September InFocus will release its ScreenPlay 5700 projector in Australia. Could this be the perfect home theatre projector? It uses what is apparently Texas Instrument’s newest DMD, the Matterhorn. I say apparently because TI has seen fit not to mention it on its\u00a0DLP web site<\/a>. So much for up to the minute promotions!<\/p>\n

I have long maintained that for PAL countries XGA is a very good resolution for projectors. That’s because they offer 1,024 by 768 pixels. If you are playing ananamorphic<\/a> PAL DVD, then you can work out the vertical resolution of a 4:3 projector this way. Multiply the\u00a0horizontal<\/em> resolution by 9 and then divide by 16. Do this to 1,024 and you get 576 pixels vertically. Since PAL delivers a 576 line picture, that makes a perfect match with no rescaling. Potentially this is a much better picture.<\/p>\n

The problem with projectors until now is that they have been designed with computer applications in mind. Or, in the case of widescreen models, with either high definition or US-style NTSC resolution in mind. See NTSC is 480 lines. The maths to upscale to the 720 lines available on DLP projectors based on the Mustang chip is easy: multiply by 1.5. But PAL, while it works well, receives a 1.25X increase. I am not sure that this doesn’t actually detract from picture quality.<\/p>\n

The problem with XGA has been, despite the mathematical nicety of the system for PAL, it seems like a shame to throw away the 200,000 pixels at the top and bottom of the screen. The Matterhorn apparently offers a native 1,024 by 576 pixel resolution which should be simply perfect for PAL DVD playback (and NTSC viewers will, for once, get the compromised performance of modest upscaling!)<\/p>\n","protected":false},"excerpt":{"rendered":"

In September InFocus will release its ScreenPlay 5700 projector in Australia. Could this be the perfect home theatre projector? It uses what is apparently Texas Instrument’s newest DMD, the Matterhorn. I say apparently because TI has seen fit not to … Continue reading →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[8,12,5],"tags":[],"_links":{"self":[{"href":"http:\/\/hifi-writer.com\/wpblog\/index.php?rest_route=\/wp\/v2\/posts\/2397"}],"collection":[{"href":"http:\/\/hifi-writer.com\/wpblog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/hifi-writer.com\/wpblog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/hifi-writer.com\/wpblog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/hifi-writer.com\/wpblog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2397"}],"version-history":[{"count":1,"href":"http:\/\/hifi-writer.com\/wpblog\/index.php?rest_route=\/wp\/v2\/posts\/2397\/revisions"}],"predecessor-version":[{"id":2398,"href":"http:\/\/hifi-writer.com\/wpblog\/index.php?rest_route=\/wp\/v2\/posts\/2397\/revisions\/2398"}],"wp:attachment":[{"href":"http:\/\/hifi-writer.com\/wpblog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2397"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/hifi-writer.com\/wpblog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2397"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/hifi-writer.com\/wpblog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2397"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}