Only on demand and TV video output interface are dual high-definition HD VOD, HD VOD is the real true high-definition VOD has two specific criteria: First, on-demand interface is VGA, resolution is 1280 * 720 or more (the higher the better, of course, art song karaoke machines is 1440 * 900, the industry's highest) Second, the video output must be HDMI, and the output resolution is 1280 * 720P above; some karaoke machines Although HDMI Interface , but only HDMI output SD video 480I, or the content is on-demand interface HDMI output instead of the video, this is not true HD VOD. Turn off the TV after the TV re-open, the upper-left or upper right corner of the TV show Now Playing resolution karaoke machines (HDMI output resolution Arts song karaoke machine for 1920 * 1080P, the industry's highest)
Each definition contrast resolution: 1440 * 900 800 * 600 resolution is 2.7 times, 1920 * 1080P resolution is 12 times a 480i.