Slashdot Mirror


Safely Cleaning LCD Displays?

An anonymous reader asks: "I own several laptops and one flat-panel LCD display, and I am trying to find a good way to keep them clean without damaging them. Using the alcohol-based cleaning wipes that I normally use for my CRT displays doesn't seem right, and I had an (idiot) friend who shorted out a great many of the transistors on his laptop's LCD by spraying Windex on it. What's the best way to clean these things without damaging them or creating buildup that I'll just have to clean off again separately?"

26 of 46 comments (clear)

  1. You can use windex... by Takeel · · Score: 3, Insightful

    ...just don't be a moron like your friend. Spray it on the cloth.

    1. Re:You can use windex... by Treeluvinhippy · · Score: 2

      ...just don't be a moron like your friend. Spray it on the cloth.

      I second that.

      --
      >
    2. Re:You can use windex... by bakes · · Score: 2

      I find warm water does the job very well - plus I *heard* (tm) that some LCD screens have some 'magic coating' that windex can damage. Who knows.

      Use warm water to damp cloth 1, wipe screen, dry with cloth 2. Beautiful.

      Oh, and tell anyone who uses the computer to NOT TOUCH THE SCREEN!

      --
      Ho! Haha! Guard! Turn! Parry! Dodge! Spin! Ha! Thrust!
    3. Re:You can use windex... by ameoba · · Score: 4, Insightful

      You'll never stop that. What you can do, however, is to get people touching with their fingernails (palm facing away from the screen) instead of their grubby, greasy fingertips.

      --
      my sig's at the bottom of the page.
    4. Re:You can use windex... by 0x0d0a · · Score: 5, Funny

      Pavlovian conditioning. They touch the screen, they get smacked.

      Nature is wonderful.

  2. I prefer a simple moist cloth... by ihtagik · · Score: 5, Informative

    When cleaning LCD panels, including laptop displays, be very careful. The plastic coating on the front of the display is semi porous, so fluid can run down the front of the display and short out some of the edge transistors, blowing out some of the display elements. Pre-moistened towelettes are the best way to go, but if you prefer a spray on cleaner, use it very sparingly. LCD Cleaning Tips

    I think best results are achieved by wiping the screen with an absorbent cotton/flannel cloth dipped into a very dilute soap solution and squeezed until it is moist. Also instead of trying to scrub any dirt build up try rubbing gently in a circular motion. Once done you should wipe any droplets of water off the panel or risk messing it up.

    1. Re:I prefer a simple moist cloth... by dattaway · · Score: 2

      I can say spraying cleaner on a screen is very bad, as I have a laptop that has a few white horizontal lines across the screen. A few years ago, I sprayed cleaner on the surface and much of the top half turned white. Shutting off the power saved most of it, but a few white lines remained permanently shorted.

      I'm not sure how the driver transistors would fail or if it was the contact between the connectors and the screen itself that were damaged. Interesting.

  3. Scotch Brite Cloth by MrMac · · Score: 4, Informative

    You should get 'Scotch Brite High Performance Cloth'.. this stuff is fantastic.. it's fiber is woven in such a way that it cleans glass with no liquid and dosen't scratch. I use in on my glasses and all of my computer moitors, tv's and any LCD panels I have.. a Newton, PowewBook. You can use it in conjunction with a little bit of cleaner like Windex or even water. They are washable, they cost about $4 a piece - check out your grocery store buy the sponges and stuff or Wal-Mart, etc....

    --
    *** I Know Everything, But Can't Remember It All At Once ***
  4. Try google by MrScience · · Score: 2, Informative

    A quick search on google groups turned up many hits, including a link to this pdf. Read your manual. Also: "Probably more important is the cloth you use. I like to use a soft cotton cloth, even an old t-shirt. With the right cloth, you can even use spit for a small spot. With the wrong cloth you'll screw up the screen no matter what you use." here

    --

    You quitting proves that the karma kap worked. The most annoying of the whores shut up. --CmdrTaco

    1. Re:Try google by 0x0d0a · · Score: 4, Funny

      The wrong cloth being steel wool?

  5. So, by Perdo · · Score: 5, Funny

    We get a lab of new iMacs into the school.

    A week later, we ship them all back.

    First it was a rash of cracked screens.

    The kids were poking their fingers into them.

    Then it was a broken arm.

    They both wanted to look at it.

    But the children could not match what came next:

    They all got washed with whiteboard cleaner.

    By the principal.

    An hour before open house.

    The PHB said "they ARE white."

    It turned them blue.

    The parents got to see their tax dollars at work.

    We traded them for eMacs.

    The PHB kept his job.

    --

    If voting were effective, it would be illegal by now.

    1. Re:So, by moosesocks · · Score: 3, Funny

      I can relate to a similar experience:

      English class, the last week of school. (it should be noted that this English classroom had (old) computers at every desk)

      Teacher tells us we can skip the lesson if we tidy up the room. We blindly agree

      She tells to windex all the computers, making sure to get 'inside of them' really good.

      Now, I know quite a bit about computers, and the teacher obviously didn't know anything. I had offered solutions to problems the computers had presented earlier in the year, only to be told that I was arrogant and insulting the teacher's knowledge, and the teacher hated me since. So, I shut my mouth while I watched in horror as students squirted windex inside monitors and power supplies.

      That summer, i spent about 2 weeks working for the school fixing computers. The other 'techies' were astonished as to how most of the computers ended up with bad monitors, motherboards, and power supplies.

      It was then that I learned what a pain it is to figure out WHICH parts of the 25 computers in the lab she had destroyed (hmmm... is this PC dead because the monitor just doesn't work, has a bad motherboard, power supply, or video card)

      --
      -- If you try to fail and succeed, which have you done? - Uli's moose
  6. Re:Paranoid approach by inio · · Score: 4, Insightful

    It's sad to see such a well written post destroyed by one bad link.

    Excellent post, but I won't be surprised when you're modded down to -1.

  7. I use by Treeluvinhippy · · Score: 2

    Formula 409 for everything external. That stuff is great when used with moderation. The particular flavor I currently have is "Glass and Surface with Citris Scent", comes in purple and looks like Grape Kool-aid. (hmmmm kool-aid.) Seriously, I have used this stuff on everything, keyboard, optical mouse , case, monitor, laptop lcd, laptop case, ipaq.

    There isn't anything harmful to your hardware if used with care. (ie. don't be a dumbass and spray the shit all over the place to fill every nook and cranny so the stuff gets inside what it is your cleaning.) I just spray a little (emphasis on the word little) on a clean rag (Clean is important)and wipe. No big deal.

    --
    >
  8. Help Desk by Treeluvinhippy · · Score: 2
    I had an (idiot) friend who shorted out a great many of the transistors on his laptop's LCD by spraying Windex on it.

    Just imagine if he called Tech Support for this one.

    Idiot Friend "Dude, like man, like you got to help me. Dude like my new monitor dosen't, like you know work."

    Tech Support "So what's wrong with it. Please describe in more detail."

    IF "Well dude, there was a puff of smoke like it was smokin' a little doobie, and it hasn't worked since then."

    TS "Really? Ok we'll send you a new one right away when did this happen?"

    IF "Like a few minutes ago man, right after I sprayed half a bottle of windex on the screen it was gettin real dirty from my fingerprints. I like to smoke big fattys and poke the screen to see that cool thing it does."

    --
    >
  9. iKlear LCD Cleaner by NeuroPulse · · Score: 3, Informative

    Cleaner made for this purpose.

    http://www.iKlear.com/

  10. Two step by macemoneta · · Score: 2

    I use a suction vac with a soft brush to remove dust from the screen, keyboard and any openings first. Then wipe the screen and any dirty areas (palm rest, mouse buttons, heavily used keys) with alcohol wipes (I use ReliOn Alchol Swabs available at local pharmacies for about $2/100).

    The vacuuming first is important; it prevents the dust caking when wiping with the alcohol (makes the screen look smeared).

    The laptop fan also tends to suck in dust; laptops are "heat challenged" as it is. Use the suction vac on the air inlets and exhaust for the fan to remove as much as possible.

    I've been using this technique on both laptops and desktops with no problems for about 5 years now.

    --

    Can You Say Linux? I Knew That You Could.

  11. LCD screen cleaner by XO · · Score: 2, Informative
    --
    "Champagne for my real friends - and real pain for my sham friends!" http://ericblade.postalboard.com/
  12. Easy Clean by stinkydog · · Score: 3, Funny

    I reccomend the dishwasher. Open the laptop and place in face down on the top rack. Add some Cascade and clean away. I will also get all those crumbs and Mountain Dew spots off the keyboard.

    SD

    --
    âoeWho knew something as harmless as willful ignorance could end up having real consequences?â
  13. Just read... by nomel · · Score: 3, Insightful

    the users manual. They don't expect people to be intelligent or anything...that's why they pack the little manual they send you with information. One of the sections should be called something like Care and maintenance. All laptop manuals I have had tell how to properly clean the screen (lite detergent on a rag). Also, the screen should be covered with a protective coating (they all have a polarized piece of plastic film) that should keep the transistors from being exposed to the outside, so your friend probably dripped water inside or something...unless it ate through the plastic.

    Just turn it off and pull the battery when you clean it...if you get water in it, don't worry about it, just wait until you think the water inside is dry before you turn it back on.

  14. NO WINDEX!!! by nathana · · Score: 2, Informative

    AIIEEEE!! Do NOT use Windex. Ammonia-based solutions will YELLOW the surface of the LCD over a period of time.

    I do as IBM suggests for my ThinkPad: a 50/50 solution of water and isopropyl alcohol on a soft, lint-free cloth (I use a clean, old T-shirt). Works great.

  15. Endust for Electronics... by ianashley · · Score: 2, Informative

    I found Endust for Electronics works fine on laptops and flat panel monitors. Just spray some onto a soft cloth and whipe away. You can pick it up at any CompUSA, Best Buy, or Office Depot for around 4 bucks..

  16. Apple mostly agrees by Otter · · Score: 2, Informative
    According to the manual for my TiBook:

    To clean your PowerBook screen do the following:
    • Shut down your PowerBook.
    • Dampen a clean, soft, lint-free cloth or paper with water only and wipe the screen. Do not spray liquid directly on the screen.
  17. Orange by decep · · Score: 2, Interesting

    Having a two year old can be rough on a LCD screen. In fact, just last night, my son used a colored pencil on my 18" desktop screen. No physical harm, just markings. I also setup an old laptop for him to bang on when I'm working (he just wants to be like me) and he used a crayon on the laptop LCD. Since I didn't care about the laptop screen, I decided to try one of the various "Orange" cleaning agents (the foaming kind) on the screen. Much to my suprise, the crayon and the colored pencil markings were removed with barely any pressure on the screens.

    Both LCDs probably look better now than they did when they were brand new. No streaks, no damage, just clean.

  18. got to love those multi purpose cleaners... by z84976 · · Score: 2

    years ago, in college, i was sitting in my (nasty) car with a bottle of windex, cleaning the inside mirrors and windows. while i was there, i figured i'd try it out on the other plastic parts, too. worked great. so then i spilled some (don't lay those bottles on their side when full... they leak) on the nasty greasy (i worked in restaurants) disgusting formerly-blue floor. know what? it CAME CLEAN! i then proceeded to clean the entire floor of the car with windex. amazing. worked like a champ. so yeah, i think it can handle a little LCD screen...

  19. Baby wipes! by hawk · · Score: 2
    Seriously. Tear them in half or so, or there will be too much liquid.


    Unfortunately, my household doesn't stock them any more, and my screen is dirty :(


    hawk