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| Backlight |
The light source for a transmissive LCD. Basically, two techniques are used in transmissive LCD designs, direct lighting and side lighting. Direct-lit backlights use CCFTs (cold cathode fluorescent tubes) and a diffuser panel directly in back of the LC (liquid crystal) layer. Side-lit backlights use CCFTs and a light pipe on one or more of the edges of the display. |
| Bezel |
A protective frame fitted over an LCD to protect the glass edges and act as a pressure device by compressing and securing the elastomer connector between the PCB and LCD glass. |
| Bit Depth |
See Color Depth. |
| Black |
Ideally, the complete absorption of incident light; the absence of any reflection. In the practical sense, any color which is close to this ideal in a relative viewing situation, i.e., a color of very low saturation and of low luminance. |
| Brightness |
The dimension of color that is referred to an achromatic scale, ranging from black to white, also called lightness or luminous reflectance. Normally indicated in ANSI lumens (American National Standards Institute measurement of "candle" power) |
| Buffing |
A technique where the alignment layer on the LCD substrate is rubbed in one or more directions. This process aligns the liquid crystal molecules parallel to the buffing direction. See alignment layer. |
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Glossary
