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Off topic: 如何清洁液晶显示屏
Thread poster: clearwater

clearwater
China
Local time: 18:30
English to Chinese
Aug 29, 2007

近日发现面前的台式电脑的液晶显示屏上面污垢越来越多,工作时还不太明显。但一关掉显示屏电源,对着光线一看,就能发现许多污垢,基本上是些儿子的小手印。平时就用擦眼镜的软布来擦拭,不过至多只能擦掉一些表面的灰尘,不知有什么比较简便的方法可以去除顽垢?
曾用过类似纸巾的“干/湿屏幕清洁巾”,但效果甚微。


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wherestip  Identity Verified
United States
Local time: 05:30
Chinese to English
+ ...
酒精 加 水 Aug 29, 2007

clearwater,

Here are some links of recommendations on how to clean a TFT screen.


http://www.bris.ac.uk/is/computing/advice/hardware/screens/



Cleaning TFT (LCD) screens
Viglen Product Marketing give the following advice:

"For cleaning TFT screens, it is important to keep moistness off the unit because surplus liquid or foam can be easily "sucked" into the screen through capillary action. Once the moisture gets in there, it isn't coming out.

A standard yellow duster is normally suitable. Really stubborn fingerprints and biro marks should be treated with care since pressure on the screen could damage the liquid crystal cell behind. If it's all getting too much, you can try spraying some screen cleaning fluid onto the cleaning cloth (avoiding having free liquid slopping about) and gently buff the screen."

Please note: it appears that almost every manufacturer of TFT screens has their own - different - recommended method of cleaning! All agree that care must be taken not to put pressure on the screen, that use of abrasives (for example, paper towels) should be avoided and that liquids should not be applied directly to the screen. Virtually all recommend against the use of ammonia-based cleaners and solvents such as acetone. Some suggest using a soft, lint-free cloth slightly moistened with just water, or dilute vinegar - but do check beforehand for cleaning instructions in the manual or on the manufacturer's web site.




http://www.computerhope.com/cleaning.htm#10



LCD cleaning

Why? Dirt, dust, and finger prints can cause the computer screen to be difficult to read.

Procedure: Unlike a computer monitor, the LCD / flat-panel display is not made of glass, therefore requires special cleaning procedures.

When cleaning the LCD screen it is important to remember to not spray any liquids onto the LCD directly; do not use a paper towel as it may cause the LCD to become scratched.

To clean the LCD screen we recommend that you use a soft cotton cloth; if a dry cloth does not completely clean the screen, you can apply rubbing alcohol to the cloth and wipe the screen with the damp cloth. Rubbing alcohol is actually used to clean the LCD before it leaves the factory.




http://www-307.ibm.com/pc/support/site.wss/document.do?lndocid=MIGR-4A2P54



LCD care and cleaning instructions - ThinkPad

Solution

Wipe such a stain gently with a dry, lint-free, soft cloth. If the stain remains, moisten the cloth with LCD cleaner (see Additional information) and wipe the stain again. Be sure to dry the LCD before closing it.

Additional information

The TFT LCD screen is a delicate device that requires careful handling. To keep the LCD from being damaged keep these precautions in mind:
Do not place anything heavy on your Notebook system.
Do not scratch, twist or hit the surface of the LCD screen.
To clean, gently wipe the LCD with a dry, lint-free soft cloth.
Note: Antistatic LCD cleaning cloths and Kim Wipes are also acceptable alternatives.

If a stain remains on the LCD, moisten the dry, lint-free, soft cloth with water or a 50-50 mixture of isopropyl alcohol and water that does not contain impurities.

Attention:
Never spray or pour any liquid directly on the keyboard or LCD panel!

Wring out as much of the liquid as you can.
Wipe the display again; do not let any liquid drip into the computer.
Let the LCD dry before closing the lid.

Attention:
Isopropyl Alcohol is a flammable liquid. Do not use this cleaner near an exposed flame or when the system is on.




Here are a couple of TFT screen cleaning fluids sold in the U.K. You might want to visit the local computer stores and see if they carry something similar. Anyway, a 50-50 mixture of isopropyl alcohol and water is just 酒精 加 水 But also notice the first link says their product doesn't contain any alcohol. You could consider sending for it through mail, but keep in mind it could be just another sales gimmick.


http://www.whatlaptop.co.uk/YVXHbt5oWel2Yg.html

http://www.pixmania.co.uk/uk/uk/88748/art/fellowes/lcd-tft-screen-cleaning-k.html


Additionally, some discussions from some random chatrooms on the subject ...

http://icrontic.com/forum/archive/index.php/t-3132.html

http://www.laptopshowcase.co.uk/forums/viewtopic.php?t=5



[Edited at 2007-08-29 15:13]


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clearwater
China
Local time: 18:30
English to Chinese
TOPIC STARTER
软布加水 Aug 30, 2007

多谢wherestip!
我按您提供的信息,试着用软布加水擦拭,发觉效果还蛮不错。当然,在擦拭时应当断切显示屏的电源。等自然挥发干净了,再开启电源。
不过听说,酒精是绝对不能用来擦拭液晶显示屏的。网上对此说法不一,让人犯晕。暂时也不敢贸然使用它了。


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Zhoudan  Identity Verified
Local time: 18:30
Member (2007)
English to Chinese
+ ...
我也听说 Aug 30, 2007

不知道为什么。还有人告诉我不能用酒精擦拭音响里的磁头。

clearwater wrote:

不过听说,酒精是绝对不能用来擦拭液晶显示屏的。网上对此说法不一,让人犯晕。暂时也不敢贸然使用它了。


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clearwater
China
Local time: 18:30
English to Chinese
TOPIC STARTER
要不要信专业人士? Aug 30, 2007

Zhoudan wrote:

不知道为什么。还有人告诉我不能用酒精擦拭音响里的磁头。

clearwater wrote:

不过听说,酒精是绝对不能用来擦拭液晶显示屏的。网上对此说法不一,让人犯晕。暂时也不敢贸然使用它了。

http://h50069.www5.hp.com/e-Delivery3/Forum/WebUI/Messages/ShowTopic.aspx?RID=96cf226f-41bd-4c47-8c3d-4728dc3e1deb
今天又打了个电话给惠普的技术支持人员,对方说不能用水。后来他又咨询了同事,回复说可以用水,但不能用酒精。
唉,连这样的工作人员都搞不灵清,更不用说我们这些老百姓了。。。


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wherestip  Identity Verified
United States
Local time: 05:30
Chinese to English
+ ...
50:50 mixture Aug 30, 2007

clearwater & Zhoudan,

That's probably the "raging debate" that first U.K. link was referring to.

Just to make sure, I went to IBM's intranet and did a search. Here are 2 links I found on the subject - both are in the public domain or else I wouldn't post them here - the first of which is identical to that of Lenovo's recommendations that I posted yesterday. My guess is Lenovo inherited the exact same instructions from IBM

In another research article there was indeed mention of TFT panels having to go through a post-manufacturing cleaning process, just like one of the other links I posted yesterday indicated. So I wouldn't worry too much about using rubbing alcohol in small amounts as long as "big brother" says so.

Anyway, if plain water worked for you that's even better.


http://www-307.ibm.com/pc/support/site.wss/document.do?sitestyle=ibm&lndocid=MIGR-4A2P54&velxr-layout=print



LCD care and cleaning instructions - ThinkPad


Symptom
There is a scratch-like marking on the LCD. This might be a stain transferred from the TrackPoint or from the key tops of the keyboard when the cover was pressed from the outside.

Affected configurations
Any Notebook system.

Solution
Wipe such a stain gently with a dry, lint-free, soft cloth. If the stain remains, moisten the cloth with LCD cleaner (see Additional information) and wipe the stain again. Be sure to dry the LCD before closing it.

Additional information
The TFT LCD screen is a delicate device that requires careful handling. To keep the LCD from being damaged keep these precautions in mind:
Do not place anything heavy on your Notebook system.
Do not scratch, twist or hit the surface of the LCD screen.
To clean, gently wipe the LCD with a dry, lint-free soft cloth.
Note: Antistatic LCD cleaning cloths and Kim Wipes are also acceptable alternatives.


If a stain remains on the LCD, moisten the dry, lint-free, soft cloth with water or a 50-50 mixture of isopropyl alcohol and water that does not contain impurities.
Attention:
Never spray or pour any liquid directly on the keyboard or LCD panel!


Wring out as much of the liquid as you can.
Wipe the display again; do not let any liquid drip into the computer.
Let the LCD dry before closing the lid.

Attention:
Isopropyl Alcohol is a flammable liquid. Do not use this cleaner near an exposed flame or when the system is on.







http://www-307.ibm.com/pc/support/site.wss/document.do?sitestyle=ibm&lndocid=LWIK-3X4GSR&velxr-layout=print#2



Cleaning your computer

DANGER:
Isopropyl Alcohol is a flammable liquid. Do not use this cleaner near an exposed flame or when the system is on.

You should occasionally clean your computer as follows:

Use a soft lint-free cloth moistened with non-alkaline detergent to wipe the exterior of the computer.
Don't spray cleaner directly on the display or keyboard.
Gently wipe the LCD with a dry, soft lint-free cloth. If a stain remains, moisten the cloth with LCD cleaner and wipe the stain again. Be sure to dry the LCD before closing it.
Note: A 50-50 mixture of isopropyl alcohol and water or water alone may be used as a LCD cleaner to moisten your cloth. Antistatic LCD cleaning cloths and Kim Wipes are also acceptable alternatives.



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Jason Ma  Identity Verified
China
Local time: 18:30
English to Chinese
+ ...
用煮沸过的水加洗洁净 Aug 30, 2007

这是我清洗我的显示器是用了多年的方法。从来没用过液晶显示器,不过应该效果一样吧。
之所以煮沸是想去除杂质,洗洁净最好用环保型的,如果对人没有损害(hopefully),对显示屏更没有啦。
水温最好放到35-40摄氏度,这也是人洗澡时最舒服的温度。替你立下汗马功劳,招财纳宝的显示器也该得到此等待遇。
温水加洗洁净洗了效果就是好。最后还得用柔软的布蘸上clearwater擦干净。
不能用鹿皮,它会把保护膜蹭成大花脸。


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Shaunna  Identity Verified
United States
Local time: 06:30
English to Chinese
+ ...
这个比较可怕 Aug 30, 2007

他们到底有准儿没准儿啊。

clearwater wrote:

今天又打了个电话给惠普的技术支持人员,对方说不能用水。后来他又咨询了同事,回复说可以用水,但不能用酒精。
唉,连这样的工作人员都搞不灵清,更不用说我们这些老百姓了。。。


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wherestip  Identity Verified
United States
Local time: 05:30
Chinese to English
+ ...
Anti-glare Coating Aug 30, 2007

Shaunna wrote:

他们到底有准儿没准儿啊。

clearwater wrote:

今天又打了个电话给惠普的技术支持人员,对方说不能用水。后来他又咨询了同事,回复说可以用水,但不能用酒精。
唉,连这样的工作人员都搞不灵清,更不用说我们这些老百姓了。。。


Shaunna,

For you it's relatively easy. If you're concerned enough, try this product. BTW, I'm not advertising for anyone. I'm merely providing a lead ...

http://meridrew.com/index.html


The HP customer rep might have a reason for giving clearwater the response he/she did. According to this link about caring for HP plasma or LCD TVs, cleaning agents that contain alcohol should be avoided because they could damage the anti-glare coating. So it makes sense that the same applies to a laptop. If the laptop screen has an anti-glare coating, don't use alcohol.

I'm thinking IBM ThinkPad screens must not be large enough to require the anti-glare coating feature.


http://h10025.www1.hp.com/ewfrf/wc/document?docname=c00245898&lc=en&cc=us&dlc=&product=435594



Cleaning the LCD TV screen

Use the following steps to clean the LCD TV screen surface:

CAUTION: A special antiglare coating is applied to the screen of your TV. Using solvents such as alcohol or abrasive material such as a paper towel, may affect the screen coating or bezel paint. Do not use liquid or aerosol cleaners. Do not expose the TV to volatile gas or fluid such as pesticide. Do not put the TV in contact with vinyl or rubber products for a long period of time. Extended contact may result in the removal of the coating or degradation of the surface. Dropping the TV or forceful impact on the screen surface may cause the TV screen to break.

1. Unplug the power cord from the wall (AC outlet) or surge protector before cleaning the TV.

2. Use a damp cloth to clean the TV screen. Gently wipe the screen and avoid pressing on the screen.





[Edited at 2007-08-30 18:23]


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Shaunna  Identity Verified
United States
Local time: 06:30
English to Chinese
+ ...
Ha, should have thought about a kit somewhere! Aug 30, 2007

wherestip wrote:

Shaunna,

For you it's realatively easy. If you're concerned enough, try this product. BTW, I'm not advertising for anyone. I'm merely providing a lead ...

http://meridrew.com/index.html



[Edited at 2007-08-30 18:05]


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clearwater
China
Local time: 18:30
English to Chinese
TOPIC STARTER
哪天试试蒸馏水 Aug 30, 2007

Martin Jones wrote:

这是我清洗我的显示器是用了多年的方法。从来没用过液晶显示器,不过应该效果一样吧。
之所以煮沸是想去除杂质,洗洁净最好用环保型的,如果对人没有损害(hopefully),对显示屏更没有啦。
水温最好放到35-40摄氏度,这也是人洗澡时最舒服的温度。替你立下汗马功劳,招财纳宝的显示器也该得到此等待遇。
温水加洗洁净洗了效果就是好。最后还得用柔软的布蘸上clearwater擦干净。
不能用鹿皮,它会把保护膜蹭成大花脸。

依Martin的思路来推,估计蒸馏水的效果应当要比清水好得多。
哪天去超市买一瓶来备着:)


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clearwater
China
Local time: 18:30
English to Chinese
TOPIC STARTER
rubbing alcohol中文叫什么? Aug 30, 2007

wherestip wrote:

To clean the LCD screen we recommend that you use a soft cotton cloth; if a dry cloth does not completely clean the screen, you can apply rubbing alcohol to the cloth and wipe the screen with the damp cloth. Rubbing alcohol is actually used to clean the LCD before it leaves the factory.


请问wherestip:
rubbing alcohol 这种酒精中文叫什么?我总不至于到了附近的药店,跟店员说“麻烦给我来瓶rubbing alcohol”吧^_^
网上说法不一,“擦拭酒精”、“外用酒精”等等。


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Shaunna  Identity Verified
United States
Local time: 06:30
English to Chinese
+ ...
医用酒精 Aug 31, 2007

70% 医用酒精,有没有卖的?

clearwater wrote:

请问wherestip:
rubbing alcohol 这种酒精中文叫什么?我总不至于到了附近的药店,跟店员说“麻烦给我来瓶rubbing alcohol”吧^_^
网上说法不一,“擦拭酒精”、“外用酒精”等等。


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wherestip  Identity Verified
United States
Local time: 05:30
Chinese to English
+ ...
医用酒精 Aug 31, 2007

clearwater,

我的化学老早就还给老师了, 但还知道 Shaunna 所说的 "医用酒精" 是对的. "按摩酒精"、"外用酒精" 大概也都不错. 下面这几个链接是介绍医用酒精及其一些用途的.


http://www.newton.dep.anl.gov/askasci/chem00/chem00102.htm


http://en.wikipedia.org/wiki/Isopropyl_alcohol



It is also a very good cleaning agent and often used for cleaning electronic devices such as contact pins (like those on ROM cartridges), magnetic tape deck and floppy disk drive heads, the lenses of lasers in optical disc drives (e.g. CD, DVD) and removing thermal paste from CPUs. It is also used to clean LCD and glass computer monitor screens (at some risk to the anti-reflection coating of the screen), and used by many music shops to give second-hand or worn records newer looking sheens. It cleans white boards very well and other unwanted ink related marks. Isopropyl alcohol also works well at removing smudges, dirt, and fingerprints from cell phones and PDAs.




http://wiki.answers.com/Q/When_do_you_use_rubbing_alcohol



To clean the TFT LCD screens of notebook computers: removes the oily buildup from fingers and cigarette smoke and restores and tones the special coating on the screen (Dilute the rubbing alcohol 2:1 with distilled water then add 2,5ml apple cider vinegar per 100ml - completely restores and cleans).




http://en.wikipedia.org/wiki/Rubbing_alcohol


底下两个链接是美国能买到的医用酒精, 我估计你到当地的西药店就可以找到.

http://www.first-aid-product.com/industrial/isopropyl-alcohol.htm

http://www.drugstore.com/qxp73865_333181_sespider/rite_aid/isopropyl_rubbing_alcohol_70.htm


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Shaunna  Identity Verified
United States
Local time: 06:30
English to Chinese
+ ...
哇,我误导了! Aug 31, 2007

刚看了steve给的链接,可不得了,原来这个alcohol是异丙醇(Isopropyl Alcohol),不是乙醇,而中文里一般说到酒精都是指乙醇。我没有查,但医用酒精一般也是指乙醇的,误导大家了,对不起。

另外,又想,关于那个能不能用酒精的 mess 是不是由此而来?也许是可以用rubbing alcohol (异丙醇,按摩酒精?)但是不能用一般而言的酒精(乙醇)?


wherestip wrote:

clearwater,

我的化学老早就还给老师了, 但还知道 Shaunna 所说的 "医用酒精" 是对的. "按摩酒精"、"外用酒精" 大概也都不错. 下面这几个链接是介绍医用酒精及其一些用途的.


http://www.newton.dep.anl.gov/askasci/chem00/chem00102.htm


http://en.wikipedia.org/wiki/Isopropyl_alcohol



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