Field emission display (FED) device is one of the flat panel display devices whose emission theory is the most close to the cathode-raytube (CRT).
场致发射显示(FED)是发光原理最接近阴极射线管(CRT)的一种平板显示器件。
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A cathoderaytube, CRT, you either remove the plastic housing around the tube, this is easy enough, or you work through the vent panels in the top of the housing.