Question about Samsung SyncMaster 931B 19" LCD Monitor

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One single dot it showing in my monitor of lcd

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Its damaged

Posted on Aug 02, 2010

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Posted on Jan 02, 2017

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I have (suddenly) a single dotted black line about a quarter wasy down my screen on laptop. Can I get rid of it?


Hello,

First, you need to verify if the dot is cause by faulty graphics chip/card or LCD/LED. To do this use external monitor, if you cant see dot on your external monitor then you have faulty LCD/LED if you see dot like in your laptop the you have graphics chip/card problem.

Oct 09, 2014 | Acer Computers & Internet

Tip

Monitor buying tips you should know.


Over the years monitors have transformed from those bulky CRT monitors to square LCD screens to stylish flat wide screen LCD's and now to new stylish extremely thin LED screens. On average every PC user spends at least 5 hours a day looking at the monitor. If the picture is fuzzy and not clear enough then there is a very high possibility that the eyes get damaged.

An older CRT monitor
slasher_x_51.jpg
A wide LCD monitor
slasher_x_49.jpg

A newer ultra flat widescreen LED monitor
slasher_x_50.jpg


Monitor Sizes
There are many different sizes of CRT, square LCD, wide LCD and wide LED monitors available on the market at the moment.

If you want an older CRT screen then sizes can range between 14" to about 20", they use the 4:3 aspect ratio.
If you want an older LCD screen then sizes can range from 15" to 19", they also use the 4:3 aspect ratio.
If you want a newer wide screen LCD then sizes can range from 18.5" to about 27" and even larger. They use the 16:9 if they are full HD or 19:10 if they are not ratio.
If you want a newer wide screen LED then sizes can range from 18.5" to about 27" and even larger. They also use the 16:9 if they are full HD or 19:10 if they are not ratio.

Image quality
The sharpness of the image in a monitor greatly depends on your Graphics card as well as whatever resolution you are running at. Nevertheless the quality of the monitor plays an important role.

Here are some of the tips that you should know before buying a monitor.

1. There are three types of monitors namely CRT, LCD and LED. The monitor that looks like a TV is a CRT monitor. In CRT monitors there is a Cathode Ray Tube that shoots electrons into the screen to create the image. An LCD monitor is smaller in width and consumes less power and is healthier if you are going to be spending large amounts of time at your PC. The LED screen looks the same as an LED monitor and the difference between it and the LCD is that it has a much higher contrast ratio resulting in darker blacks and much lighter whites.

3. A CRT monitor is much heavier than LCD monitor as you can imagine by it's bulky appearance. A LCD monitor is very lightweight and so is a LED monitor.

4. The distance between two adjacent pixels in a monitor is called 'dot pitch'. This is measured in millimeters (mm). Smaller the dot pitch the clearer the picture quality. Usually there are monitors with dot pitch varying between 0.20 mm to 0.27mm. Some manufacturers use diagonal dot pitch while most of them use horizontal dotpitch. The diagonal dot pitch is always longer than the horizontal dot pitch

5. Resolution of a monitor has to be considered with care. Most of the CRT monitors have resolutions of 800×600, 1024×768 and 1280x1024. The square LCD monitors have 1280×1024 and 1600×1200 resolutions. Newer wide screen LCD monitors have resolutions of 1600x1900, 1680x1050 and the Full HD 1920x1090. When the resolution is higher the images and text will appear smaller. But you can see more text and bigger pictures in the monitor with high resolution.

6. Another thing to note is the 'Refresh rate'. This rate is usually 60Hz, 73Hz, 75Hz, 85Hz. Refresh rate of 85Hz means the picture on the monitor is refreshed 85 times within a second.

7. The brightness and contrast can range between a low 5 000:1 to a high 80 000:1 in a LCD monitor and an average of 5 000 000:1 in a LED, yes that's 5 million to 1 with a LED. This just shows how much better a LED monitor is to a LCD.

8. If you are a gamer then the thing you have to look at with LCD monitors and LED monitors is the response time. If it is 16ms then this is a very bad monitor for gaming and you will experience a ghosting effect in most games and if it is 5ms then you will have an average gaming experience. What you want to get is a 2ms response time monitor, with it you will have the best gaming experience with no ghosting what-so-ever.

on Mar 06, 2011 | Computers & Internet

2 Answers

Acer monitor screen showing partial screen only. rest of screen showing black & white dots.


Hello there.

Try the monitor with ANOTHER computer,

This will prove whether it is the Monitor at fault or not.

Sep 25, 2014 | Computers & Internet

1 Answer

Dotted lines across the top of the screen and flicker in other video ports.


If you wish to get some details; visit the site linked here. Pull up older posts. http://electronicshelponline.blogspot.com/ Line faults & possible causes to LCD & Plasma screen are given with illustrations. You can get an idea about the fault to an extent. Faults to all LCD & Plasma screen are similar, irrespective of its brand and screen size.

Mar 05, 2017 | Westinghouse LVM-42w2 Television

1 Answer

What does it mean by dead cells?


I assume this is related to your LCD monitor.
I think you mean dead pixels. The LCD monitor has tiny pixel elements, one for each red, blue, green color and each one of these colored pixels are turnes on by a transistor. When a transistor fails then the colored pixel it controls does not light up. This is a dead pixel and it shows up as a tiny black dot.
If the screen displays a blue screen, a dead blue pixel will appear as a tiny black dot in the blue screen.
You normally would not notice a few dead pixels unless they are grouped together.

Sep 20, 2010 | Hanns.G Corporation HW191D 19" LCD Monitor

1 Answer

When I connect the lcd to my laptop, the lad shows


hi atuire,

try hooking up the lcd screen toanother computer and if it shows the same double screen again then there is aomething wrong with your lcd monitor,
you may want to use another monitor with your laptop to ensure the problem is not on the laptop's side.

if issue stays same with another monitor, then just right-click onto desktop background, goto properties and have a look whether you have enabled the shared monitor feature
(meaning that u can use two screens with just one graphics card parallel, to work on a 'wider' range of sight.
Therefore your machine's graphics card sually must be equipped with both: a standard vga out and a HDMI-out as well.)

if your machine ddoes not have these capabilities but still the monitor sharing is turned on from the software side, this might cause the problem. To disable simply change the graphics card's
propertiers as descried above.

Good luck

Sep 06, 2009 | Gateway Computers & Internet

1 Answer

Sony a100 distortion dots - Im getting several


If these are single pixels on the LCD screen, they are normal. From pg. 8 of the user's guide:

"The LCD monitor is manufactured using extremely high-precision technology so over 99.99% of the pixels are operational for effective use. However, there may be some tiny black points and/or bright points (white, red, blue or green in color) that constantly appear on the LCD monitor. These points are normal in the manufacturing process and do not affect the images in any way. "

This may also be helpful.

"images may trail across the LCD monitor in a cold location. This is not a malfunction. When turning on the camera in a cold location, the LCD monitor may become temporarily dark. "

May 03, 2009 | Sony A100 Digital SLR & 18-70 Lens Kit...

1 Answer

HP 1740 LCD Monitor, showing 4 blue dots on screen


Does the rest of the picture come in okay? Just 4 small dots? Those are probably dead pixels. I believe you have to have 5 (in most cases) to claim it as defective. Some people have had success tapping on them (be gentle) otherwise, you can send it into a repair company.

Dec 08, 2008 | HP Pavilion F1703 17" LCD Monitor

1 Answer

Monitor showing dots all over


Dear user,
It could be the following 4 errors:
1, Vga cable damaged.
2, Video card memory failure.
3, Lcd Panel starterd to damage.
4, The connection between the computer and the monitor is not stable, the plug is not tighten on a side it could be any sideo on the vga cable meaning you have not screwed into the monitor it can lease and fall down from the monitor.

Please check thease.

Nov 17, 2008 | Kogi L7CH Monitor

1 Answer

Lcd problem white pin dot on screen


Probaly will not get worse, but is a stuck pixel. If you press on the screen at that pixel, does it go away? Check with mfr see if it is covered.

Jun 05, 2008 | Dell E173FP 17" LCD Monitor

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