TFT LCD monitors are rapidly becoming shipped with new computers
by default. On this page I explain you the frequent trouble of
TFT monitor and how to resolve them.
No display or white screen:
If this is a new install make sure the refresh rate is not set
too high. If you installed a new video card in your system make
sure the refresh rate is not set too high. Under Windows, reboot
the system and go into \”Safe Mode\” (Use F8 key on boot up)
select safe mode and change the refresh rate under display
properties to either 60Hz or Default. Then reboot the system and
the screen will turn on. Maximum mode on 15\” TFT screens is
1024×768 and maximum mode on 17\” and 19\” TFT is 1280×1024. Check
to see if the green light is on with the external power adapter.
Make sure all plugs are secure and the video cable is properly
attached to the computer.
Dark screen in games:
TFT Liquid Crystal Display monitors are a unique devices that
are manufactured to meet excellent picture clarity and
reproduction in a native mode. Outside a native mode graphics
will be darker, fine lines and text will be thicker. Native mode
for 15\” TFT panels is 1024×768, 17\” and 19\” TFT panels are
1280×1024. Most games can be configured to run at 1024×768 which
should produce clean graphics.
Thick text:
As described above, TFT LCD monitors perform best in their
native modes. Other modes can be used however the reproduction
of text will vary in thickness depending on the mode the monitor
is running in. Best text reproduction is view in the monitors
native mode.
Faint or unseen text:
TFT monitors are Bright! So bright that sometimes text in a DOS
program may be very faint or not seen. In order to see this
text, you can reduce the contrast level down until the text is
visible. TFT LCD monitors were manufactured to perform in a GUI
environment such as Windows, Linux (X) and Macintosh. Older
designed programs may have upgrades to enhance this effect to
make the text legible.
Wavy lines on the screen:
In some instances you may encounter wavy lines on the screen.
These are usually 1/4\” thick and move in a vertical motion. This
is caused by a noisy electrical feed from a wall outlet. If you
change your vertical refresh rate under display properties to
75Hz this effect should disappear.
Small dot on screen:
TFT panels by their very nature are difficult to manufacture.
KDS uses displays from various suppliers including; Samsung,
Hyundai and Acer, who all guarantee the display to be 99.99%
free from pixel defect. What that means is a 15\” LCD display can
have up to about 6-10 broken pixels and still be considered
\”acceptable\”. Broken pixels are individual pixels, which are
stuck on, off, or as one particular color. Depending on their
location and intensity, they can be next to invisible or
obvious. This is common to ALL TFT screens and is not considered
a defect by the screen manufacturer.
Dark areas:
Retail TFT LCD monitor products employ the use of a single TFT
backlight. This backlight is responsible to deliver full edge to
edge brightness across the screen. On some models the screen may
not be as bright in the center or the edges as other areas. This
is due to the design the actual panel manufacture took to keep
costs down so that the TFT panel is affordable for the retail
environment. Prices of TFT panels vary according to added
features (TV tuner, SVIDEO etc.). They also vary according to
the number of backlights that are in the panel. High-bright
monitors with multiple backlights can cost upwards of $2,500.00
for a 15\” panel.
About the author:
Willson Peterson is computer expert and network engineer. He is
the author of and \”
tml\">Monitor Glossary of Terms.\”
Click here ==> http://www.ebookarticle.com to visit his
website.