| 摘要 |
<p>The present invention is provided to solve a problem of a TN LCD such as a color inversion phenomenon, an image sticking phenomenon, a difficulty of controlling luminance, and a difficulty of expressing an image, usually used in an airport signboard or a large advertising billboard, by comprising a smart TFT LCD module (100), a sub-frame per unit cell (200), a mini TFT LCD-type main frame (300), a power supply cable (400), a communication cable (500), and a control management server (600).</p> |
