Look at this lcd´s , some have 700 nits.
There are numerous screen sizes.
http://www.vartechsystems.com/produc...right-LCDs.asp
Sizes : 6.4 / 8.4 / 10.4 / 12.1
what the supliers says :
VarTech's full range of special High Bright Sun light Readable TFT LCDs, are designed to operate in high ambient light conditions. At 500 nits to 1400 nits of brightness, VarTech's High Bright Sun light Readable LCD outperform commercially available products that wash out in direct and/or indirect sunlight conditions. These quality display systems are an ideal solution for factory automation, marine/mobile and process control applications.
Some features of our High Bright Sun Light Readable LCDs include:
Class "A" LCD Panel
Rugged Construction
Designed to satisfy most commercial, ATM, industrial, security/surveillance, marine or military, or vehicle applications
Viewable under ambient light conditions
Variety of resolutions and up to 16.7 million colors
High Brightness and Contrast enhances display quality
Multiple sizes and mechanical configurations available
Space Saving compact design
Engineered to provide the longest lamp-life possible
Models also available for full-range dimming
Optional Ambient Light Sensor
Custom designs to meet your specific viewing and mechanical requirements are also encouraged
OTHER SIZES CURRENTLY SUPPORTED