HP48G+ screen flickers - Printable Version +- HP Forums (https://archived.hpcalc.org/museumforum) +-- Forum: HP Museum Forums (https://archived.hpcalc.org/museumforum/forum-1.html) +--- Forum: Old HP Forum Archives (https://archived.hpcalc.org/museumforum/forum-2.html) +--- Thread: HP48G+ screen flickers (/thread-68922.html) |
HP48G+ screen flickers - Larry - 02-09-2005 The screen flickers a whole lot. When it powers up sometimes it comes on really dark them settles down to normal after a second. Is something wrong? I normally turn down the contrast and it otherwise works fine.
Mine are the same... - Vieira, Luiz C. (Brazil) - 02-10-2005 Hi, Larry; I own two HP48G+ and one HP48SX. The newer HP48G+ (btw, the HP49G+ too) shows the same flickering you mention. Sometimes a set of vertical bars (Never horizontal bars), sometimes a full black screen, all in a flash. It seems to me that the newer LCD are more efficient, low-power devices. If you consider them as a bunch of small, tiny capacitors (one for each pixel), everytime you turn the calculator ON these capacitors re briefly charged. As they are more sensitive, as a consequence of the supposed better efficiency, they'll flicker easily than the earlier ones. That's why I actaully don't care too much for the flickering... Just a guess, based on possible facts. Cheers.
Luiz (Brazil)
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