12-11-2007 08:14 PM - last edited on 12-14-2007 05:18 PM by JaneL
lenovo thinkvision L220x review
i have had an L220x for about two weeks and decided to write up a review of my experiences thus far. as a professional graphic designer and semi-professional photographer, my intent is to cover every aspect of this display while concentrating on the details most pertinent to those working in color-critical environments.
specs in brief
- 22” (559 mm) S-PVA display panel
- WUXGA (1920x1200) resolution
- 325 cd/m^2 brightness
- 1200:1 contrast ratio
- 92% color gamut
- +/- 89° horizontal and vertical viewing
- 6 ms response time
- DVI-D and VGA inputs
- portrait/landscape pivot function
- $499.99 MSRP
upon unpacking the L220x, i immediately noticed its miniscule size compared to the 24”, 27”, and 30” displays i have used. the thin bezel surrounding the display helps keep the size in-check at only 17mm (0.67in) on the top, left, and right sides and 31mm (1.22in) on the bottom.
design cues are clearly reminiscent of the thinkpad and thinkcentre platforms using 45° angles and circles in its architecture. it looks right at home alongside my T61p and X61.
the external controls are labeled with subtle red, green, blue, and gray text labels. their colors can be difficult to see in low light but also do not overpower the image itself – a point which i find more important. along the same lines, the status LED is bright enough to do its job yet dim enough not to be noticeable.
controls and user interface
on-screen display controls are intuitive. i still have yet to open the owner’s manual. there are only five buttons on the front of the L220x in the lower-right-hand corner. admittedly, i started pushing them to figure out what each one did.
inputs can be switched between DVI and VGA on-the-fly with the push of an external button. this allows the simultaneous use of two systems (in my case a T61p via DVI and and X61 via VGA) without the use of a separate KVM switch.
viewing angles and brightness
viewing angles are excellent. i have yet to show a client a design or batch of photos and be asked to turn the display because they cannot see. this is one of the biggest reasons to purchase a wide-viewing-angle panel using IPS/FFS or S-PVA technology. with that said, having used various displays utilizing all three technologies, i cannot tell that this isn’t an IPS panel.
having used the L220x under ambient sunlight, fluorescent, and tungsten lighting, i am thoroughly impressed with this display’s backlight. 325 cd/m^2 has been enough to keep the display viewable in all conditions i have thrown at it. in most cases it has been too bright. on average i will use it at 75% brightness during the day and 25% brightness at night, depending on the amount of ambient light. never once have i wished it could go brighter. since CCFL backlights lose power over time, i am confident that this display will last for years due to its current power output.
color, contrast, and color accuracy
right out of the box i thought that colors were a bit over-saturated. this is a common complaint with displays capable of showing 92% color gamut. since about 90% of my work is in the sRGB color space, i set the display up around the sRGB color space. this can be done using the on-screen menu under Image Properties > Color > Preset Mode > sRGB. while some colors still appear overblown, sRGB helps minimize the effect. conversely, this does not effect the ability to display AdobeRGB or ProPhoto color spaces.
contrast on this panel is the difference between black and white – literally. at a 1200:1 ratio, it rivals some of the best plasma and LCD television displays. Pure black is so dark that it almost looks like the panel is turned off in that area. pure white is both bright and clear. light leakage of the CCFL backlight is almost non-existent. this helps keep the display accurate both during work and when watching video or other content with a black or darkened background.
once set up properly, color accuracy is nearly dead-on. i have a top-of-the-line pantone colorimeter and used it to create a calibrated ICC profile. to my surprise, it matched lenovo’s included ICC profile nearly perfectly. however, this display must be set up properly to keep colors accurate. out of the box, colors at their maximum values (ie; red at 255-0-0 RGB) will appear much too bright and over-saturated. it took me a few days to get this toned down with proper calibration. this is one of the negative sides of a 92% color gamut-capable panel since it shows more color bandwidth than the average display. i could easily see the average user becoming frustrated with colors from a 92% display without a background in color management. even with proper calibration, some colors still seem overblown.
at 50% brightness, the display panel itself has a maximum temperature of 105°F (40.5°C). the upper-most vent on the reverse of the display has a maximum temperature of 120°F (49°C). these are low enough that they would not adversely affect a small room’s overall temperatures. the fan on a hard-working thinkpad would likely top these numbers anyway.
DVI vs. VGA
i compared DVI output from the T61p via advanced mini dock against VGA output from the X61’s onboard DB15 port. while DVI output is better than VGA, the difference is marginal. if a user did not have a way to readily compare the two side-by-side, i would be very surprised if he or she could notice a difference.
if you are looking for a compact, high-resolution display for color-critical applications then the lenovo thinkvision L220x is definitely one to consider. keep in mind that colors will seem over-saturated without proper setup and some colors still seem over-saturated even with proper setup.
as i continue to use this display, i will expand on the above in further detail and include more pros and cons as i discover them.
Message Edited by erik on 12-14-2007 11:07 AM
Note from Moderator: Add pic warning to subject line.
12-13-2007 08:51 PM
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12-16-2007 05:59 PM