is the third generation of mobile phone standards and technology,
superseding 2G, and preceding 4G and possibly 5G. ...
refers to the process of radio broadcasting using amplitude
Reality refers to a display in which simulated imagery,
graphics, or symbology is superimposed on a view of the surrounding
refers to a circuit board (usually a printed circuit board)
that connects several connectors in parallel to each other,
so that each pin of each connector is linked to the same relative
pin of all the other connectors.
Bluetooth® refers to a short-range radio technology
aimed at simplifying communications among Internet devices
and between devices and the Internet. It also aims to simplify
data synchronization between Internet devices and other computers.
refers to the attribute of a visual sensation by which a stimulus
appears more or less intense or appears to emit more or less
light. (Brightness is not a photometric standard and should
not be used in conjunction with photometric units such as
- candelas per square meter. See "Luminance".
refers to consumer electronics.
Distortion refers to an aberration is caused by the dispersion
of the lens material, the variation of its refractive index
n with the wavelength of light.
(Complementary Metal-Oxide Semiconductor) is a major class
of integrated circuits. CMOS chips include microprocessor,
microcontroller, static RAM, and other digital logic circuits.
The central characteristic of the technology is that it only
uses significant power when its transistors are switching
between on and off states. Consequently, CMOS devices use
little power and do not produce as much heat as other forms
of logic. CMOS also allows a high density of logic functions
on a chip.
(Cathode Ray Tube) refers to a vacuum tube display in which
electrons from a heated cathode (an electron gun) are focused
on a screen and moved by electrostatic or magnetic fields
to create an image. CRTs are the main display technology used
throughout the world from televisions to computer monitors.
refers to the ratio of the brightest part of an image versus
the darkest part of an image (for example, 100:1).
view display refers to a display viewed without aid of
additional optics or magnification by the unaided eye of the
user. The size of the image produced by the display is the
actual size viewed by the user.
format refers to display addressability (e.g., 640 x 480),
aspect ratio (e.g., 4:3), or video standard (e.g. VGA).
displays refer to a broad category of display technologies
which generates its own light. Emissive display technologies
include electroluminescent, field emission, plasma, vacuum
fluorescent, and polymeric. In contrast non-emissive displays
require a separate, external source of light (such as the
backlight of a liquid crystal display).
refers to protective packaging, against moisture and particles,
for integrated circuit devices
- abbreviation for footlamberts. See "Luminance".
display refers to video displays used in lap top computers
and other devices where the monitor is desired to be as thin
FM refers to the process of radio broadcasting using frequency
GPS refers to Global Positioning System: a navigational
system involving satellites and computers that can determine
the latitude and longitude of a receiver on ...
(Head-Mounted Display or Helmet Mounted Display) or HWD (Head-Worn
Display) refers to a diverse family of viewing systems where
one or more displays and sets of optics are attached to the
head (head-mount display) or an accessory. For example, they
can be designed into helmets, hard-hats, or eyeglasses. Images
can be projected into one eye (monocular) or both eyes (binocular).
(High Definition Television) refers to a new television
format of elongated shape and significantly higher resolution
than current television.
quality refers to an objective measurement or subjective
rating of the quality of a display system.
iTV refers to Internet television.
(Liquid crystal display) a flat display device made up
of any number of color or monochrome pixels arrayed in front
of a light source or reflector. Each pixel (picture element)
consists of a column of liquid crystal molecules suspended
between two transparent electrodes, and two polarizing filters,
the axes of polarity of which are perpendicular to each other.
(Light Emitting Diodes) refers to a semiconductor device
which emits light when current flows through the device. These
devices have a preferred current direction.
reflectance refers to the amount of light an observer
will see from the surface. The surface brightness, is the
same no matter what angle they look.
LAN refers to a local area network: a local computer
network for communication between computers; especially a
network connecting computers and word processors ...
refers to the amount of visually effective light emitted by
an extended source. Typically expressed in nits, footlamberts
(fL) or candelas per square meter (cd/m2). (See Chart of Luminance
1 fL = 3.43 cd/m2 or 3.42626 nits
1 cd/m2 = 0.292fL or 1 nit
Miniature display refers to those displays which are
magnified by optics to enlarge the image viewed by the user.
For example, a miniature display smaller than 2 inches in
size may be magnified to provide a 14 inch viewing area.
refers to a very small electronic display device that can
be suspended near the eye and viewed through magnifying optics
or used with higher magnification optics to project an image.
refers to structures near to or smaller than a few micrometers
MID - Mobile Internet Device
refers to a display that emits a single hue but may vary in
intensity and saturation. For example, monochrome miniature
displays used in many HMDs are typically green and are used
to display symbology or sensor imagery.
refers to a measure of luminance equivalent to 1 Cd/m2, 1fL
= 3.42626 nits. See Luminance.
displays refers to a broad category of displays which
absorb or block light from a separate light source. Liquid
crystal, electrochromatic, electrophoretic, ferroelectric,
and micro-mirror displays fall in this category.
is an acronym for "Original Equipment Manufacturer."
OEMs manufacture components and subassemblies which are purchased
by companies which integrate the components and subassemblies
into final products.
is an acronym for "Organic Light-Emitting Diode",
a type of display which uses organic material as a diode type
light emitting material.
is a contraction of "picture element" and refers
to a single dot of light that is the smallest individually
addressable unit of an image that can be displayed. Pixels
are generally thought of as the smallest complete sample of
refers to pixel density or dot pitch (measured in micrometers
or millimeters). Resolution is typically referenced by Rows
x Columns. Commonly used resolutions include
Quarter video graphics array(QVGA, 320 x 240)
Video graphics array(VGA, 640 x 480)
Super video graphics array(SVGA, 800 x 600)
Extended video graphics array(XGA, 1024 x 768)
Super extended video graphics array(SXGA, 1280 x 1024)
Ultra extended video graphics array (UXGA, 1200 x 1600)
is an acronym for "Universal Serial Bus," a serial
bus standard for connecting devices.
image refers to an image that appears to be suspended
in front of the eye, that is, a representation of an actual
object (source) formed by diverging rays of light which seem
to originate from the image, but in reality do not cross at
Reality ("VR") or artificial reality refers
to an electronic system which is designed to create a simulated
environment around the viewer. Such as system must be interactive
with the user to be considered true VR.
WiFi refers to a popular wireless networking technology
that uses radio waves to provide wireless high-speed Internet
and network connections.