Choose Your Product
No Product SelectedSelect Product
ThinkVision Monitors - Brightness adjustment

It appears that brightness cannot be adjusted on ThinkVision Monitors.

Affected configuration

ThinkVision L150 (6636-Axx), L150p (6636-Hxx), L170 (6734-Axx), and L170p (6734-Hxx) TFT monitors


In order to achieve a more noticeable change in the brightness on these monitors, a combination of both brightness and contrast buttons can be used.

Additional information

The panels used in some of the ThinkVision L150, L150p, L170, and L170p monitors measure close to 300 candelas per square metre (cd/m2), so they are very bright. The adjustment range for the TFTs used in these monitors is approximately 35% of the allowable range which a cold cathode fluorescent tube (CCFL) backlight can be reduced before it shuts down rather than getting dimmer. Generally, the human eye has an inability to detect changes in brightness above 200 candelas per square metre (cd/m2). Therefore, you may be unable to perceive a change in screen brightness if you use only the brightness control alone. However, by adjusting both the monitor brightness and contrast together, you can achieve a more noticeable effect on perceived screen brightness.

If you are unable to find what you are looking for, please do try the following options:
1. Lenovo Assisted Search
2. Product usage and general troubleshooting tips
3. Lenovo Support Forum
4. Technical Support Call Centre

Country Availability
Document ID : HT035902
Legacy Document ID : MIGR-54398
Last Updated :
Copyright © Lenovo 2013, all rights reserved
Was this page helpful to you?YesNo

Select Task
Drivers & Software  
Guides & Manuals  
Diagnose & Fix  
Warranty & Services  

Driver Matrix
KnowledgeBase Featured Articles
Community KnowledgeBase
Community Forums
Lenovo EMC
Windows 8 Support