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Active Matrix Display
A type of display which uses Thin-Film Transistors (TFT) to control each pixel individually.
Auto Adjustment
A function that automatically adjusts the clock, clock phase (or phase), and screen position of a ADVAN LCD monitor to ideal levels under analog connection. Most of ADVAN ‘s monitors are equipped with an Auto Adjustment button on the monitor’s front panel.


Most TFT-LCD displays are illuminated by the use of separate light sources or backlights that are built into the unit behind the LCD panel.


CE Mark
A European regulation that has been in effect since 1 January 1997. It limits EMI (Electromagnetic Interference) and EMS (Electromagnetic Susceptibility/Immunity) and asks for electrical devices to be unaffected by such fields created by general office electrical equipment. All current ADVAN products are conformed to the CE standard.
Color Temperature
Measured in Kelvins, it references color temperatures, and provides a standard for defining standard colors emitted from displays.
The magnitude of the brightness differences perceivable on the screen. The amount of difference between the maximum and the minimum brightness viewed on display. Contrast = Max Brightness/Min Brightness.


D-Sub Connector
A connector whose male end has a “D” shaped raised shield that protects the connecting pins. A D-Sub connector is usually a 15-pin or 9-pin connector with each pin corresponding to a different wire or signal within the cable.
Display Data Channel, used by Plug and Play monitors is a VESA standard for communication between a monitor and a video adapter. The monitor can inform the video card about its properties, such as maximum resolution. The video card can then use this information to ensure that the user is presented with valid options for configuring the display.
DDC1 (Display Data Channel 1)
A uni-directional data channel from the display to the host, continuously transmitting Extended Display Identification, EDID information.
DDC2 (Display Data Channel 2)
A bi-directional data channel based on the 12C protocol. The host can request EDID or VDIF information over the DDC2 channel. In addition to this, the DDC2 channel can act as a transparent channel for ACCESS.bus communication.
Digital Visual Interface (DVI)
A digital flat panel interface introduced by the Digital Display Working Group (DDWG). Although other interfaces have been introduced, DVI is expected to become the industry standard.
Digital Visual Interface - Digital (DVI-D) Connector
A digital connector that accepts DVI signal input from a computer. Most of ADVAN monitor includes a DVI-D connector.
A deformation of the video signal which can result in poor picture quality. Distortion can appear on the display screen in the form of misconvergence, pin cushioning, barrel, trapezoidal or parallelagramic shaped images, poor color, tilt, etc. Most of times the distortions under LCD are result of a mismatched video timing between the monitor A/D (Analog to Digital) converter and the analog video output from the video source. It can be solved by using the Auto Adjustment function.
Dot Clock/Dot Frequency
The frequency with which dots (or pixels) are illuminated on the screen; how quickly a single dot can be produced on the screen. A general formula for calculating the dot frequency is: D x ~ 1.25 x ~ fH (the number of dots in a line multiplied by a constant between 1.25 and 1.3 multiplied by the horizontal scanning frequency).
Dot pitch
The measurement between each pixel such as the tiny red, green and blue dots that make up the screen image.
DPMS (Display Power Management Signaling)
Power management set by the VESA consortium.


Program of the U.S. Environmental Protection Agency which specifies power usage guidelines for consumer products.


FCC (Federal Communications Commission)
This U.S. commission regulates the radio frequencies over the air waves.


Hertz (Hz)
The frequency (number of times) that a periodic event occurs in one cycle. One hertz equals one cycle per second. Hertz are used to measure the Horizontal Scanning Frequency (kHz), Vertical Scanning Frequency (Hz), and Dot Clock (MHz).


Image Scaling
A function in most LCD monitors that expands resolutions less than the native resolution to an enlarged mode or a full screen mode.
Image Smoothing
Image smoothing refines the jagged or blurred text that often results after scaling a resolution to an enlarged or full screen mode.  Select ADVAN  LCD monitors offers this special function and the image smoothing function comes with adjustments in five gradations so the user can fine tune the image.


Kilohertz (kHz)

*see also Hertz

Hertz x ~ 1000: Kilohertz is used when measuring the horizontal scanning frequency (fH) of the monitor. An fH of 33.33 kHz means the electron beam can cross the screen surface and return to the start of the next line 33,333 times per second.


Liquid Crystal Display (LCD)
A Liquid Crystal Display (LCD) is a non-emissive display. The active element is a Twisted-Neumatic (TN), In Plant Switching (IPS), or Verical Agliment (VA) liquid crystal. LCDs are used in digital watches, calculators, word processors, televisions, and of course computer displays. LCDs offer the advantages of being lightweight, compact, and consuming less power compared to more conventional displays.
Luminance or Brightness
The quality of the amount of radiating light perceived to be emitted from the display. This varies from a minimum for a very dim appearance to a maximum for a very bright appearance.


Megahertz (MHz)
1,000,000 x ~ Hertz. Dot Clock is measured in terms of Megahertz. If the dot clock is 25.2 MHz, this means 25,200,000 dots can be illuminated every second. This translates to one dot every nano second.

*see Distortion
Two types of wavy patterns that can appear on some monitors. The two types of moiré are video moiré and raster moiré. Generally, moiré appears more pronounced on a light grey background.

MPR (Swedish National Board for Measurement and Testing)
This council produces the recommendations for the magnetic and electrical field emissions guidelines. The council’s name has been changed to SWEDAC.


NUTEK (The Swedish Board for Technical Accreditation)
This council produces specifications for automatic power-down and power consumption during normal operation.


Plug and Play
Reference DDC The Microsoft® solution with the Windows 95/98/ME/2000/XP operating system that facilitates setup and installation by allowing the monitor to send its capabilities (such as screen size and resolutions supported) directly to your computer, automatically optimizing display performance.


RealColor™ (Digital Color Enhancer)
This feature widens the color spectrum to include YMC (yellow, magnate, cyan). Some ADVAN monitor offer RealColor™ Color Adjust Function. The video controller support RealColor™ Color Adjust Function for natural color. With this feature the monitor can control Black Level, Brightness, Contrast, Hue, Saturation, Flesh Tone in YUV color space in addition to black level & contrast control in RGB color space. RealColor™ Flesh tone Adjustment The human eye is more sensitive to variations of flesh tones than other colors; for example, the user may not care if the color of grass is modified slightly during image capture and/or display. However, if skin tones are modified by even a small amount, it is unacceptable. The video controller features flesh tone adjustment capabilities. This feature is not based on lookup tables, but rather a manipulation of YUV-channel parameters. Flesh tone adjustment is available for all inputs.
RS-232C Terminal
Recommended Standard 232C or RS-232C, is am Electronic Interfaces Association (EIA) standard interface for connecting serial devices such as a modem or a mouse. ADVAN touch screen monitor come equipped with an RS-232C terminal.


TCO (Swedish Confederation of Professional Employees)
This council aims to stimulate the demand for and the development of better and more environmentally-friendly display units.
Thin-Film-Transistors Liquid-Crystal-Display is based on extremely thin transistors with liquid crystal materials. TFT applied to the devices that control its color display elements during operation and liquid crystal is substance that is neither liquid nor solid but exists somewhere in between the two. Blending certain base materials (e.g. biphenyls, dioxene) with other materials to obtain various desired properties such as viscosity, elasticity, reflective index, etc… forms liquid crystal materials.
Touchscreen Display
Touch Screen is a display device that a user can control with a computer by touching areas on the screen with one or more fingers. There are various touch screen technologies such as resistive, capacitive, projected capacitance etc…


UL/ULC (Underwriters Laboratory)
A non-profit safety organization in the U.S. that inspects and certifies the products sold in the U.S. and Canada for their safety standards.
Universal Serial Bus (USB)
A peripheral bus standard which brings the plug and play of computer peripherals outside the computer, thus eliminating the need to install cards into dedicated computer slots and reboot the system. Up to 127 peripherals can be run simultaneously and they will be automatically detected and configured upon attachment. USB provides a common interface for all peripherals, making special connectors unnecessary.


VESA (Video Electronics Standards Association)
A non-profit member organization dedicated to facilitating and promoting personal computer graphics through improved graphics standards for the benefit of the end user.
Viewing Angles
The maximum angle at which a display can be viewed with acceptable performance. The quality of the image displayed on a LCD panel is best when viewed at a direct right angle to the front of the panel.