Visual Display Unit : CTL is specialized for Safety lab testing of all kind Visual Display Unit.
An LED display is a flat panel display, which uses an array of light-emitting diodes as a video display. An LED panel is a small display, or a component of a larger display. They are typically used outdoors in store signs and billboards, and in recent years have also become commonly used in destination signs on public transport vehicles or even as part of transparent glass area. LED panels are sometimes used as form of lighting, for the purpose of general illumination, task lighting, or even stage lighting rather than display. a VDU usually also includes its own display electronics which store the received data and convert it into electrical waveforms to drive the display unit.