The white brightness, contrast ratio, and chromaticity (red, green, blue, white) in each display area were measured according to the surface testing standards of IEC TS 62715-5-2. The characteristics of the white brightness, contrast ratio, chromaticity (red, green, blue, white) in each display area at different viewing angle were studied. We found that the white brightness, contrast ratio changed obviously when viewing angle changed which cannot be used in military special display for the time being. But the chromaticity (red, green, blue, white) almost unchanged which can be used in military special display.If the reinforced curved display devices want to be applied in military field, the change of white brightness and contrast ratio should be drastically reduced with viewing angles.