| Hue |
The main attribute of a color that distinguishes it from other colors. For example, a color may have a green, yellow, or purple hue. Colors defined as having hue are known as chromatic colors. White, black, and grays possess no hue. |
| IC |
Integrated Circuit (IC) is a term referring to all electronic compo-nents containing more than one circuit element on the same electronic chip, e.g. memories, processors and amplifiers. |
| Integration |
The process of mounting a display in an enclosure along with any controllers or inverters that are necessary. The result is a complete stand alone unit. |
| Interconnect Dot |
Consisting of silver impregnated epoxy, it connects the pattern piece of glass to each backplane. |
| Interferometer |
An interferometer uses the wavelength in laser light as an extremely high precision ruler. |
| Inverter |
The hardware device that converts a low voltage DC input to a high voltage AC output to power an EL or fluorescent backlight. |
| Inverter DC To AC |
Used to power EL and CCFL backlights by converting DC to AC voltage at a high frequency of 300 Hz to 1 KHz. |
| IPS (In Plane Switching) |
A technique of improving the viewing angle of an LCD where the liquid crystal molecules are switched in the plane of the LCD layer rather than vertical to it. |
| IR Touch Panel |
Infrared light emitting diodes and detectors are positioned along the screen edge to create a grid of light. A finger or stylus interrupts the light beams and position is determined on the grid. |
| Isotropic Stage |
Point where fluid heats or cools to where it is no longer in the twisted nematic state. Since the molecules can no longer twist light, all incoming light is absorbed. |
| JND (Just Noticeable Difference) |
The luminance difference of a given target under given viewing conditions that the average human observer can just perceive. |
| Landscape |
A page or screen orientation that is wider than it is tall. |
| Latency |
The time delay that occurs when a computer is converting a signal into a form it can read (for example, from analog to digital.) A long latency period can result in such behavior as pausing or hanging video. |
| LCD (liquid crystal display) |
LCD displays utilize two sheets of polarizing material with a liquid crystal solution between them. An electric current passed through the liquid causes the crystals to align so light cannot pass through them. Each crystal is like a shutter either allowing light to pass through or blocking the light, resulting in the display image. Typically, a light is passed through the LCD to illuminate the pixels. |
| LCD Module |
Terminology typically used to describe an assembly of LCD glass, PCB, drivers, bezel , backlight, etc. |
| LCD Monitor |
A lightweight, portable and compact alternative to the CRT monitor. Available with touch screen option. |
| LCD Screen |
LCD Screen is another name for an LCD display. |
| LCD TV |
An LCD TV is an LCD monitor designed to display TV images. LCD TVs are configured to accept input from a tuner or alternative video sources, such as a DVD player or VCR. |
| LCD Video Monitor |
An LCD Video Monitor is an LCD monitor designed to display TV images. |
| Leads |
Conductive traces on the contact edge of the glass. |
| LED (Light Emitting Diode) |
Traditionally LEDs are created from two semiconductors. By running current in one direction across the semiconductor the LED emits light of a particular frequency (hence a particular color) depending on the physical characteristics of the semiconductor used. The semiconductor is covered with a piece of plastic that focuses the light and increases the brightness. These semiconductors are very durable, there is no filament, they don't require much power, they're brighter and they last a long time. By densely packing red, blue and green LEDs next to each other on a substrate one can create a display. A semiconductor diode that emits monochromatic (single color) light when forward biased. The emitted light can be red, yellow, orange, green, blue, or nonvisible infrared. |
| LED Backlight |
A backlight option for small to medium size LCDs that uses an LED light source. The light from the LED is either diffused from direct illumination or directed through a light pipe from side illumination. |
| LED Frontlight |
Allows a reflective display to be used at night by lighting the edges of a front-mounted, transparent diffuser. |
| Liquid Crystal Fluid |
Having properties of both a solid and a liquid, Liquid crystal consists of rod-shaped bipolar molecules which are capable of twisting polarized light when in the "off" state. It reacts predictably when electrically stimulated, making it the ideal compound to turn LCD pixels "on" or "off". |
| Lumen |
Measurement of how bright a light source is (the higher the number, the brighter the source - a wax candle generates 13 lumens, a 100-watt bulb 1,200). |
| Luminance |
A measure of the brightness or luminous intensity of light, usually expressed in units of Candelas per square meter (cd/m2) or foot Lamberts. 1 fL = 3.426 cd/m2. |
| Lux |
A measurement of light. 1 lux equals the illumination produce by 1 lumen falling on a surface measuring 1 square meter. |
| LVDS (Low-Voltage Differential Signaling) |
A de facto-standard for digital interfacing of a Flat Panel Display that permits the panel to be positioned up to 25 feet from the host system. |
Glossary
