LCD Brand: LG Display: LCD Size: 55 inches Screen ratio: 16: 9 Effective display area: 1029mm (V) X680mm (H) Resolution: 1920x1080 Brightness: 450-500cd / m Contrast; 3000: 1 Display color: 1.06B (10bit) lamp life> 60,000 hours Dimensions 1900x910x80mm Vertical Wall Dimensions 1330 × 790 × 76mm format Video: MPEG1 / 2/4, WMV, AVI, VOB, RM, RMVB, MKV Audio: DTS / AC3, MP3 MPEG1 / MPEG2 MP3, WMA, AAC, PCM Picture: JPG, PNG, GIF, SWF (Flash) for one year warranty and lifetime maintenance; 24-hour service hotline to answer product issues or failures advice. Can be set up mobile subtitles, in advertising the program flow subtitles. Can be set DIY startup screen. Can support timer switch function. Can independently set logo. Support breakpoint memory function, when the product is in a power outage or public causes power cut after a reboot, you can play the program state before power failure memory, the boot program before power off and then continue playing. The system built-in clock and calendar functions.