LCD. (Liquid Crystal Displays) - A flat panel technology, using thin-film crystal techniques, widely used in laptop computers, other small portable displays and more recently in televisions. Image brightness can be very high and color performance can be good. For HDTV, wide-screen displays of adequate resolution are available up to about 94 cm (37 in.) for direct viewing. LCD devices are also widely used as the key element in many projection televisions, both front and rear screen, up to very large sizes.
VGA - This acronym is short for the "Video Graphics Array" display mode. VGA resolution is 640 x 480 pixels.
SVGA - This acronym is short for the "Super Video Graphics Array" display mode. SVGA resolution is 800 x 600 pixels.
Set-top box (STB) - A box, similar to the familiar cable box, that is capable of receiving, decoding and sending to the associated television the picture and sound of the selected DTV broadcast. The use of an STB would allow the use of conventional televisions to receive DTB programs, but at reduced levels of resolution and with imperfections due to aspect ratio differences, leading to letterboxing or cropping of the sides of the picture.
Dot Pitch - The distance between pixels (picture elements) in a display. In a CRT for HDTV, the dot pitch is typically 0.25 - 0.3 mm. For full resolution HDTV display approximately 1400 pixels are required across the screen.
Fire Wire - A digital interface originated by Apple Computer that can transport data at 100, 200, or 400 Mbps. It is widely used to interconnect digital video devices, such as cameras and displays. Also referred to as IEEE- 1394.
D/A - Conversion of digital signals to analog signals. Most set-top boxes decode the digital signals broadcast and then convert them to analog signal for interconnection to the display device.
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