| Term |
Definition |
| A scintillator |
is material which exhibits scintillation - the property of luminescence when excited by ionizing radiation. Luminescent materials, when struck by an incoming particle, absorb its energy and scintillate, i.e. reemit the absorbed energy in the form of a small flash of light, typically in the visible range.
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| AMOLED |
Active-matrix OLED (Active-matrix organic light-emitting diode or AMOLED) is a display technology for use in mobile devices such as mobile phones, such as those made by HTC Corporation. OLED describes a specific type of thin display technology which doesn't require a backlight, and Active-Matrix refers to the technology behind the addressing of pixels.
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| Amorphous Silicon |
A semiconductor material that has no definite or regular crystal structure and is used to make the thin-film transistors (TFTs) in an active-matrix LCD or OLED.
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| Amorphous Silicon Thin-Film Transistor (a-Si TFT) |
Thin-film transistors made with amorphous silicon, typically used in the active matrix backplane of an LCD or OLED display.
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| Birefringence |
or double refraction, is the decomposition of a ray of light into two rays (the ordinary ray and the extraordinary ray) when it passes through certain types of material, such as calcite crystals or boron nitride, depending on the polarization of the light.
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| Black Matrix (BM) |
A patterned layer in an LCD’s color filter assembly whose purpose is to prevent light leakage and improve contrast.
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| Brightness Enhancement Film (BEF) |
A prism film that increases a display's brightness.
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| Capacitive touch screen |
Touch screen which senses electrical pulses from the user (multi touch).
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| Cold cathode fluorescent lamps (CCFLs) |
Refers to light sources such as neon lamps that are based on gas discharge principles, where the cathode of the lamp is not independently heated. CCFLs remain popular for LCD backlighting and computer case modification.
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| CRT |
Cathode Ray Tube. A large glass vacuum tube in which a beam of electrons is fired at the phosphor coated screen. The energy causes the phosphors to glow, giving off light.
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| Color breakup |
A transient or dynamic distortion of the color in a color television picture that can originate in videotape equipment, a television camera, or a receiver.
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| Dielectric |
An insulator used to describe nonmetals and their interaction with electric, magnetic or electromagnetic fields, including the storage of electric and magnetic energy and its dissipation. Many phenomena in electronics, solid state and optical physics can be described using the underlying assumptions of dielectrics.
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| E |
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| Fluoroscopy |
is an imaging technique commonly used by physicians to obtain real-time moving images of the internal structures of a patient through the use of a fluoroscope.
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| Fluoroscope |
consists of an x-ray source and fluorescent screen between which a patient is placed.
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| Gate |
An electrode that regulates the current flow in a metal oxide semiconductor (MOS) transistor.
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| H |
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| Image Sensor |
is a device that converts an optical image to an electric signal.
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| J |
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| K |
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| Luminance |
a certain amount of light given in a certain direction.
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| M |
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| N |
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| O |
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| Pixels |
The smallest visual element on a video display screen
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| Q |
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| Radiance |
The amount of light that passes through or that is sent from one area and falls within a given solid angle in a certain direction.
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| Radiance and spectral radiance |
are radiometric measures that describe the amount of light that passes through or is emitted from a particular area, and falls within a given solid angle in a specified direction. They are used to characterize both emission from diffuse sources and reflection from diffuse surfaces.
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| Resistive touch screen |
Touch screen which senses pressure applied (single touch only).
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| Resolution |
Degree of detail on a computer’s display which is measured by the number of dots in a row and column.
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| Subpixel Rendering |
is a method of increasing the apparent resolution of an LCD display by anti-aliasing black and white text. The method takes advantage of the fact that each pixel is actually made up of three subpixels.
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| Stereoscopy, stereoscopic |
imaging or 3-D (three-dimensional) imaging is any technique capable of recording three-dimensional visual information or creating the illusion of depth in an image.
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| TFT – Thin Film Transistor |
Technology employed in flat screen monitors, in which minute transistor elements control the alignment of liquid crystals in such a way that light is allowed to pass through or is blocked. Within the TFT element, the total brightness and color reproduction are simultaneously controlled. The light for every pixel passes through a color cell consisting of three color filters (red, green, blue), and every filter is equipped with a transistor that can be driven separately and controls the transmittance of light of every color element.
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| Threshold voltage |
Senses the electrons in the floating gate, and acts as the gate voltage to enable current to flow.
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| U |
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| Vertical Alignment |
An LC mode that increases viewing angle.
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| Wet Etching |
is an etching process that utilizes liquid chemicals or etchants to remove materials from the wafer, usually in specific patterns defined by photo resist masks on the wafer.
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| X |
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| Yield |
In computer science, a point of return (and re-entry) of a coroutine
- coroutines are program components that generalize subroutines to allow multiple entry points for suspending and resuming execution at certain locations.
- a subroutine (also called procedure, method, function, or routine) is a portion of code within a larger program, which performs a specific task and is relatively independent of the remaining code.
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| Z |
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