A Guide to Choosing the Right 19" LCD Monitor - 7 Models Reviewed

Subjective Analysis (continued)

Generally, we follow up our application analysis with a table pitting two LCDs against each other using benchmarks that we derived from VESA's handbook and test patterns from DisplayMate/CheckScreen. All of our monitors are running on an X800 Pro AGP over a DVI connector unless denoted otherwise. Monitors that don't have DVI connectors are compared using a D-sub connector instead. We have simplified our table a little bit so that we can fit all of our data on the same page, but our Notes From the Lab section flags any behavior that we would typically note on the table. The table ranks each benchmark on a scale of 1 to 5, 5 being the best rating and 1, the least desirable.

Here is generally how we rate a category:

5 - Outstanding; we have not seen anything to date that could rival our impression of this monitor's performance.
4 - Good, but room for improvement. There are units on the market that perform better.
3: Average; this monitor performs well enough to maintain the status quo, but does not excel.
2: Improvement needed; this monitor performs poorly in performance of this category.
1: Unacceptable; this product does not pass even basic performance requirements.

DisplayMate / CheckScreen / VESA FPDM 2.0
	BenQ FP931	NuTech L921G	Planar PE191M	Samsung 193P	Samsung 910V	Sony SDM-S94	ViewSonic Q190MB	Dell 2001FP
Intensity Range Check	4.5	4	4	5	4	4	4	5
Black Level Adjustment	4.5	5	4.5	5	4.5	5	5	4.5
Defocusing, Blooming, Halos	5	5	5	5	4	5	5	5
Screen Uniformity and Color Purity	4.5	5	-	5	4	4	5	4.5
Dark Screen Glare Test	3	4	4	4.5	4	4	4	4.5
Primary Colors	3	4	4	4	3	3.5	4	4
Color Scales	3	4	4	4	4	4	4	4
16 Color Intensity Levels	3	4.5	4.5	4.5	3.5	4.5	4.5	4.5
Screen Regulation	5	5	5	5	5	5	5	5
Streaking, Ghosting	5	5	5	5	2	4	5	5

Notes From the Lab

Above, you can see the Planar PE191M only scored N/A on its screen uniformity test. While the monitor is quite good, the cluster of defective pixels really strained our eyes and we found it fairly difficult to get an accurate reading of the screen uniformity. When we look for screen uniformity errors, we usually look on the corners and sides where light may be seeping through from the backlight around a poorly insulated edge. Since the dead pixels were in the corner, we had trouble when attempting to inspect the corner accurately.

You'll notice that our LCDs grab 4.5s pretty much across the board with the exception of the BenQ. Spotting 6-bit LCDs are fairly easy for people who do a lot of graphics work. The image below displays 256 different shades of blue across the top; it represents the 256 hues of blue that are found in an 8-bit sub pixel. No amount of dithering can render this square correctly on a 6-bit LCD.

As expected, the lack of a digital cable on the Samsung 910V hurt it in more ways than one. For most of our other LCDs, we knew that we were getting the correct signal with the test pattern rendered the way in which the LCD manufacturer had intended it to render. After testing a few monitors on a digital connection, we almost immediately recognized small amounts of interference on the 910V, and we did the best that we could to record our observations on the other tests.

We were not real surprised to see the Samsung 193P pull ahead in a lot of the subjective testing. It's a $700 monitor, and it should perform better in many situations. Samsung seems to have a knack for making good panels. However, if we had to pick a second best performer (other than the Dell 2001FP), we were a little surprised to see that the ViewSonic Q190MB and the NuTech L921G had posted generally sound performance numbers. Color was on balance, screen uniformity was there, and glare was fine.