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LCD Monitors
Liquid Crystal Display (LCD) technology has been used in laptops for some time. It has recently been made commercially available as monitors for desktop PCs.
LCDs have no electron gun and are therefore not very deep like CRTs. The text and images you see are created by a back light behind the panel, that shines through pixels (picture elements). Each pixel is made up of three chambers red, green and blue. The chambers in each pixel must be opened enough and in the proper proportion to produce the correct brightness and color.
For an LCD to provide a screen resolution 1024 x 768 pixels (SVGA), it must have 786,432 (1024 x 768) pixels. In TFT (Thin Film Transistor) type LCDs, each pixel is controlled by a tiny transistor that opens and closes the chambers in each pixel.
Desk top LCD displays are powered by standard 120Vac wall power.
Data is transferred to the display on a cable with a 15-pin connector that plugs into a mating connector on the video card seated in an expansion slot in the PC.
A 17" LCD monitor with 1280 x 1024 resolution and .27mm dot pitch sells for around $500
Liquid Crystal Display (LCD) technology has been used in laptops for some time. It has recently been made commercially available as monitors for desktop PCs.
LCDs have no electron gun and are therefore not very deep like CRTs. The text and images you see are created by a back light behind the panel, that shines through pixels (picture elements). Each pixel is made up of three chambers red, green and blue. The chambers in each pixel must be opened enough and in the proper proportion to produce the correct brightness and color.
For an LCD to provide a screen resolution 1024 x 768 pixels (SVGA), it must have 786,432 (1024 x 768) pixels. In TFT (Thin Film Transistor) type LCDs, each pixel is controlled by a tiny transistor that opens and closes the chambers in each pixel.
Desk top LCD displays are powered by standard 120Vac wall power.
Data is transferred to the display on a cable with a 15-pin connector that plugs into a mating connector on the video card seated in an expansion slot in the PC.
A 17" LCD monitor with 1280 x 1024 resolution and .27mm dot pitch sells for around $500