From
The LCD Thread sticky, the 24" version of this uses:
# 24": Dell UltraSharp 2408WFP, 1920x1200 (16:10)
* Panel: WG S-PVA (Samsung LTM240CS); true 8-bit, 16.7M colors
* Image Delay (rt+lag): 60 - 69 - 89
* HDCP Compliant: Yes
* Notes: Higher input lag but less response time problems than 2407WFP-HC. See this detailed review for more info.