... .5 inch2Display ratio4:33BacklightLED4Brightness300 cd/m25Resolution320(RGB) x 2406View angle(up,down,left,right)(40/60/60/60)7Display dimension76.9(W ... BRIGHT bar on the OSD menu, you can press <Down> button or <Up> button to adjust the image brightness value.CONTRAST: When ... CONTRAST bar on the OSD menu, you can press <Down> button or <Up> button to adjust the image contrast value.COLOR: When ...