The most common type of LCD used in most LCD projection panels and projectors. A display in which each pixel is driven by a thin film transistor allowing a larger viewing angle, quicker response time and more color saturation.
It is a non-crystalline silicon. In amorphous TFTs, the electron mobility is low. This means the transistor must be large, making it difficult to pack pixels densely in a panel. Thus, amorphous TFTs are most suitable for relatively large LCD panels and single panel projector.
American National Standards Institute.
The standard of measuring brightness of a display device made by American National Standards Institute. The measurement represents the average value of 9 points on the projected screen image.
Transmission rate of light passing through pixels contained within a TFT. The higher the number the brighter the image.
The ratio between the width and the height of a frame or a screen. The aspect ratio for NTSC video is 4:3; HDTV is 16:9.
The jack or jacks (typically standard RCA jacks) to plug in sound coming from a computer or video source.
The jack or jacks to hook up external (powered) speakers or a PA system.
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