HP 12C Platinum Screen



#2

Hi everyone,

I just bought an HP 12c Platinum and I notice that whenever I touch the screen (even with a slight pressure) that lines and clumps of pixels appear. Whether the calculator is on or off, when I touch the screen clumps of pixels appear. They disappear after a while, but I'm wondering about what's wrong with this. I have other HP scientific and graphing calculators and this sort of thing seem to only happen to the HP 12c Platinum. My fingers aren't magnetic, I don't think. What's causing this? I mean, I sure I'm not the only one who finds this somewhat disconcerting...


#3

I've never seen an LCD that did not exhibit similar behavior. Even my color wide-screen display that I am looking at right now will show distortion if I touch it.

#4

Quote:
My fingers aren't magnetic, I don't think. What's causing this?

LCDs are not magnetic. They function on electric field changes. Your touch is disturbing or inducing electric fields through the crystals.

This should not disturb you. It's common in all LCDs if the protective window over the LCD allows fingers to get too close to the display surface.


Edited: 5 Feb 2011, 12:55 a.m.


#5

Oh, okay, I understand. Thank y'all for the responses. (:


Possibly Related Threads…
Thread Author Replies Views Last Post
  Prime screen scratches - Use a screen protector Eelco Rouw 11 3,401 11-19-2013, 10:16 PM
Last Post: Eddie W. Shore
  HP 12C Platinum Programming v. Gold Face Dean Lewis 10 3,513 11-03-2013, 07:30 PM
Last Post: Kimberly Thompson
  Stylus for Prime screen steindid 6 2,417 10-22-2013, 02:06 AM
Last Post: Alberto Candel
  Sending from graph to home or CAS screen Richard Berler 6 2,347 10-06-2013, 03:29 PM
Last Post: Tim Wessman
  HP48GX screen replacement Francisco Quiles 9 3,987 10-03-2013, 09:17 PM
Last Post: Francisco Quiles
  hp50g screen weird line Sok-khieng Chum Hun 2 1,667 09-10-2013, 08:11 AM
Last Post: Sok-khieng Chum Hun
  HP12C Platinum PC software activation fails Russell Clinton 0 1,107 07-02-2013, 02:32 PM
Last Post: Russell Clinton
  New screen on pictures of new Sharp EL-9950 Mic 4 2,157 06-10-2013, 10:40 AM
Last Post: Mic
  HP Prime should have higher resolution screen LHH 5 2,160 04-25-2013, 10:00 AM
Last Post: bhtooefr
  Creeping black pattern on HP-11C screen Larry Gagnon 6 2,155 04-12-2013, 10:09 AM
Last Post: Peter Murphy (Livermore)

Forum Jump: