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To: Yogi - Paul who wrote (843)	9/11/1998 1:17:00 AM
From: Pierre-X	Read Replies (1) of 2025

Re: 200 dpi screens There are several significant obstacles to displaying ultra-high resolution on the desktop. Each is significant, but all taken together will bar 200 dpi from mainstream use for at LEAST five more years. 1. Cost. Today you can buy decent 17" monitors for $300. Is 200dpi worth orders of magnitude greater cost? No. 2. OS and application support. Interfaces need scalability to handle arbitrary per-inch resolutions. A variety of resolutions have existed for over ten years now, but the OS and applications STILL are not good at scaling screen graphic elements to the appropriate sizes. Ask anybody that works at 1600x1200. 3. Impossible bandwidth demands. 5.2 million pixels at 24bit color depth is roughly 120Mb. To deliver 30 frames per second at this resolution requires 3.5 Gb of bandwidth. Somewhat beyond today's (and even tomorrow's) PC specs. The 1 Gb cited in the article implies less than 10 frames per second refresh -- what are they thinking?? 4. I think most people couldn't care less about increasing their screen pixel densities. People aren't demanding this feature in their PCs. 5. The article cites legibility as the key variable driving eyestrain. Well I got news for ya, pixel density isn't the only factor that affects legibility. Other studies that I'd be happy to find references for have cited CONTRAST as one of the most important factors determining legibility and eyestrain. What I'd like to see is a REFLECTIVE display, one that can be read in daylight. Damn that would be useful in many many applications. I'd sure like to have that on my notebook computer, which is virtually useless outdoors 'cause I caint SEE whats on the bloody SCREEN. 6. This technology is alleged to be an evolution of LCD technology -- with all of its associated disadvantages? It doesn't say whether the viewing angle is restricted, or whether the pixel transition switching speed is as slow as conventional LCD, or whether it is subject to similiar transister failure issues. Comments?

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