| Tape Automated Bonding (TAB) |
A bond is made between a flexible PWB and the ITO conductive lines on the glass at the edge of the display with a multitude of conductive paths enabled by compressing conductively coated plastic microspheres in an epoxy matix. |
| TFT |
Abbreviation of Thin Film Transistor. Usually refers to an active matrix display in which each pixel is driven by a thin film transistor deposited on the glass. Provides the best in terms of contrast and speed. |
| TFT Monitor |
A TFT Monitor is a monitor that is fabricated from an active matrix LCD. 'TFT' refers to a Thin Film Transistor array that allows a high level of data to be multiplexed for driving the LCD material. |
| Threshold Voltage |
Electric field required to reorient the liquid crystal molecules to the point where the optical transmissivity of the transfer curve is 10% of the fully on state. |
| TMC |
means Transmissive Color LCD module. See Transmissive. |
| TN |
Twisted Nematic. A type of LCD material. The original LCD technology. No longer used except in low priced character modules. |
| Touch Drivers / Touch Panel Controller |
The hardware element that translates the information between the touch panel and the host. |
| Touch Screen Overlay |
A transparent glass or hard plastic sheet that mounts over the display and allows the used to make choices and input information by touching the screen. |
| Transflective |
A type of backing, bonded to the rear polarizer, which enables light to pass through the back as well as reflecting light from the front; combines the features of Transmissive and Reflective; each subpixel is both reflective and transmissive. They are readable in any ambient light. |
| Transmissive |
An LCD which does not have a reflector or transflector laminated to the rear polarizer. A backlight must be used with this type of LCD configuration. |
| Transparent |
Adjective to describe a material that transmits light without diffusion or scattering. |
| TSTN |
Triple Supertwist. Sharp name for film compensated Super Twist display which uses a retardation film to correct the color shift in STN displays, and so produces a black and white image. |
| Twisted Nemetic (TN) |
A type of liquid crystal where the alignment surface and, therefore, the liquid crystal molecules are oriented 90 degrees from each surface of glass. |
| Uniformity |
Uniformity or the lack thereof is the gradual change of luminance and/or chrominance (color) across the display. |
| User Controls / OSD |
The on screen display of menu options available to the user of an LCD monitor for adjustments. |
| UXGA Resolution |
1600 X 1200 pixel count |
| VGA Resolution |
640 x 480 pixel count (640 pixels across by 480 rows high). It originally meant a Video Graphics Adapter board found on early personal computers, whose output was an analog RGB signal on a 15 pin connector, to drive a computer's monitor in a 640x480 format. |
| Video Monitor |
Video Monitors are any of a variety of display monitors principally configured to display video data. |
| Viewing Angle |
A cone perpendicular to the LCD in which minimum contrast can be seen; the angle over which a display can be seen. |
| Viewable Area |
The dimensions measured from the inside perimeter of the LCD bezel or LCD glass epoxy seal; the part of the LCD display that is seen inside the bezel. |
| Void Pixel |
See Pixel Anomaly |
| XGA Resolution |
Short for Extended Graphics Array, a high-resolution graphics standard introduced by IBM in 1990. XGA was designed to replace the older 8514/A video standard. It provides the same resolutions (640 by 480 or 1024 by 768 pixels), but supports more simultaneous colors (65 thousand compared to 8514/A's 256 colors). In addition, XGA allows monitors to be non-interlaced. |
Glossary
