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| LCD vs CRT |
The big question these days with people buying a new computer is, "Which is better, LCD displays or Monitors?". I am not going to attempt answering that for anybody, but I will lay everything out here for you and let you decide which you'd prefer.
LCD displays are made from tiny transistors sandwiched between plastic. There are actually three transistors (red, blue and green) known as sub-pixels, that make up one pixel. Manufacturers have a few classes when it comes to quality of LCDs, which also determines the amount of acceptable bad pixels. Most manufacturers will not even think about a warranty until this number is reached. Pixel anomaly is the term used when a pixel is burnt-out, or always on. The following chart displays Maximum number of faults per type per million pixels.
| Class | # sub-pixel faults |
| I |
0 |
| II |
1-5 |
| III |
6-50 |
| IV |
51-100 |
Pros and Cons
Here is a quick comparison chart I've thrown together that briefly outlines the advantages and disadvantages of each type of display.
| LCD
Display |
CRT
Monitor |
| small footprint, and lightweight |
bulky and heavy |
| low power consumption (avg. 20W) |
higher power consumption (avg. 100W) |
| perfectly sharp |
limited sharpness; tend to blur more at high brightness, and with age |
| perfect image geometry |
tend to suffer from geometric distortions, which may be picture dependent, and worsen with age |
| consistent tonal scale |
strong bright areas can cause other areas to look
dim |
| excellent text contrast |
text contrast is relative to the quality of the monitor |
| do not normally flicker |
can flicker if set improperly, or if viewed at
off-angles |
| contrast and colour change with viewing angle |
consistent image regardless of viewing angle |
| poor dark-on-dark (blacks) images |
good blacks |
| may cause motion blur |
if properly set, excellent at displaying motion |
| photos and video can appear "flat" |
photos and videos have the appearance of "depth" to
them |
| may/will develop pixel anomaly (stuck on or off) |
not pixel-based - this problem is rare on CRT |
| fixed resolution, or very few choices |
multiple resolutions |
| growing technology - price is currently proportional to the quality |
mature technology - fairly inexpensive for good quality |
| image can be
less than desirable with low-end analog video controllers |
naturally
suited for analog video |
Last updated by Administrator (admin) on Jun 29 2006 at 13:09
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