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80年代以来,国外的巨型屏幕彩色显示装置迅速发展起来,不断出现在体育场、博览会和广场的广告塔上.由于其亮度高,图像清晰,颜色逼真,可全天候使用,特别在室外,昼夜均可收看,十分吸引人.巨型屏幕的面积从16m~2到2000m~2,有几十种规格.第一个巨型彩色显示屏是1980年日本三菱公司在美国洛杉矶体育场安装的,由于上述优点而获普遍好评,它在阳光直射时也不影响彩色图像的观看,它的屏幕将近80m_2,显示灰度64级,用了38000只彩色像元管作发
Since the 1980s, overseas large-screen color display devices have been rapidly developed and are constantly appearing on advertising towers of stadiums, fairs and plazas. Due to their high brightness, clear images and vivid colors, they can be used around the clock, especially outdoors, day and night Watching, very attractive.Mega screen area from 16m ~ 2 to 2000m ~ 2, there are dozens of specifications.The first giant color display is the Japanese Mitsubishi Corporation in 1980 installed at the Los Angeles Stadium, due to the above advantages and was It is generally praised that it does not affect the viewing of color images in direct sunlight. Its screen is nearly 80m_2, displaying 64 gray levels and 38,000 color image tubes for hair