Would something like this work OK?

Screen: 8 Inch TFT-LCD TV Monitor
Receive Frequency: VHF-1:49.75-160.25MHz, VHF-3:168.25-464.25MHz,UHF-1:471.25-863.25MHz
TV System: PAL(D/K, B/G, H, I, M, N), SECAM, PAL-M, PAL-N, NTSC
Audio Output: 150 mW(Max)
Back Light: High-Brightness LED
Connection Terminal: TV Signal, Headphone, External Power, VGA Interface
Power Supply: DC 12V 2.66A
Power Consumption: <=12W
Max Resolution (pixels): 640 x 480@75Hz
Pixei Pitch: 0.297 x 0.297
View Angle: 160 Degree
Contrast Ratio: 400:1
Brightness: 400
Screen Ratio: 4:3
Color : Black