What panel does the hp 21kd use?

(this is about the 21kd, not the w2216that was the only hp monitor listed on iFixit) My monitor fell over and the screen broke. Does anyone know what panel the hp 21kd uses, and if not, how can I find out? The hp website was less than helpful, and panel look didn't recognize the monitor's model number. I really don't want to replace it for a stupid reason like a curtain knocking it over, and I don't want it to go to waste.