Information about Comparison Of Display Technology

This is a comparison of various properties of different display technologies.

General characteristics

Shape of Screen
Highest known
diagonal screen size
Typical Use Usable in bright room
(in) (cm)
Eidophor Front ProjectionFlat
(limited only
by brightness)
TVNo
Shadow mask CRTSpherical curve or flat
40 [1]
102
Computer monitor, TVYes
Aperture grille CRTCylindrical curve or flat
40 [2]
102
Computer monitor, TVYes
Direct view Charactron CRTSpherical curve
24
60
Computer monitor,
Radar display
No
CRT Self-contained Rear ProjectionFlat lenticular
73 [3]
185
TVYes
CRT Front ProjectionFlat
(limited only
by brightness)
TV or presentationNo
PDP (Plasma Display Panel)Flat
103 [4]
262
TVYes
Direct View LCDFlat
108 [5]
274
Computer monitor, TVYes
LCD Self-contained Rear ProjectionFlat lenticular
70 [6]
178
TVYes
LCD Front ProjectionFlat
(limited only
by brightness)
TV or presentationYes
DLP Self-contained Rear ProjectionFlat lenticular
120 [7]
305
TVYes
DLP Front ProjectionFlat
(limited only
by brightness)
TV or presentationYes
D-ILA Self-contained Rear ProjectionFlat
110
279
TVYes
LCoS Self-contained Rear ProjectionFlat
110 [8]
279
TVYes
LCoS Front ProjectionFlat
(limited only
by brightness)
TV or presentationYes
SEDFlat
55 [9]
140
Computer monitor, TVYes
FEDFlat
?
?
Computer monitor, TVYes
EPDFlat (flexible)
?
?
Electronic paperYes
OLEDFlat
40 [10]
102
Computer monitor, TVYes
IMODFlat
?
?
Mobile phone[11]Yes
Virtual retinal displayAny shape
(N/A)
Experimental, possibly virtual realityDepends on system

Temporal characteristics

Different display technologies have vastly different temporal characteristics, leading to claimed perceptual differences for motion, flicker etc.
Enlarge picture
Sketch of some common display technologies' temporal behaviour
The figure shows a sketch of how different technologies present a single white/gray frame. Time and intensity is not to scale. Notice that some have a fixed intensity, while the illuminated period is variable. This is a kind of pulse-width modulation. Others can vary the actual intensity in response to the input signal.

DLPs use a kind of "chromatic multiplex" in which each color is presented serially. The intensity is varied by modulating the "on" time of each pixel within the time-span of one color.

LCDs have a constant (backlit) image, where the intensity is varied by blocking the light shining through the panel.

CRTs use an electron beam, scanning the display, flashing a lit image. If interlacing is used, a single full-resolution image results in two "flashes".

Plasma displays modulate the "on" time of each sub-pixel, similar to DLP.

Movie theaters use a mechanical shutter to "flash" the same frame 2 or 3 times, increasing the flicker frequency to make it less perceptible to the human eye.

See also

References



An Eidophor was a television projector used to create theatre-sized images. Its basic technology was the use of electrostatic charges to deform an oil surface.

Developed by the Swiss Federal Institute of Technology and Dr. Edgar Gretener A.G.
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Television (often abbreviated to TV, T.V., or more recently, tv; sometimes called telly, the tube, boob tube, or idiot box in British English) is a widely used telecommunication system for broadcasting and receiving moving pictures
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shadow mask is one of two major technologies used to manufacture cathode ray tube (CRT) televisions and computer displays that produce color images (the other is aperture grille).
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1. Electron guns 2. Electron beams 3. Focusing coils 4. Deflection coils 5. Anode connection 6. Mask for separating beams for red, green, and blue part of displayed image 7.
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A computer display monitor, usually called simply a monitor, is a piece of electrical equipment which displays viewable images generated by a computer without producing a permanent record.
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Television (often abbreviated to TV, T.V., or more recently, tv; sometimes called telly, the tube, boob tube, or idiot box in British English) is a widely used telecommunication system for broadcasting and receiving moving pictures
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aperture grille (tension mask) is one of two major technologies used to manufacture color cathode ray tube (CRT) televisions and computer displays; the other is shadow mask.
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1. Electron guns 2. Electron beams 3. Focusing coils 4. Deflection coils 5. Anode connection 6. Mask for separating beams for red, green, and blue part of displayed image 7.
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A computer display monitor, usually called simply a monitor, is a piece of electrical equipment which displays viewable images generated by a computer without producing a permanent record.
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Television (often abbreviated to TV, T.V., or more recently, tv; sometimes called telly, the tube, boob tube, or idiot box in British English) is a widely used telecommunication system for broadcasting and receiving moving pictures
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Charactron was U. S. registered trademark (number 0585950, 23 February 1954) by Consolidated Vultee Aircraft Corporation Convair for its shaped electron beam cathode ray tube.
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1. Electron guns 2. Electron beams 3. Focusing coils 4. Deflection coils 5. Anode connection 6. Mask for separating beams for red, green, and blue part of displayed image 7.
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A computer display monitor, usually called simply a monitor, is a piece of electrical equipment which displays viewable images generated by a computer without producing a permanent record.
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Radar is a system that uses electromagnetic waves to identify the range, altitude, direction, or speed of both moving and fixed objects such as aircraft, ships, motor vehicles, weather formations, and terrain.
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1. Electron guns 2. Electron beams 3. Focusing coils 4. Deflection coils 5. Anode connection 6. Mask for separating beams for red, green, and blue part of displayed image 7.
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A lenticular lens is a single convex lens that magnifies light through a prism effect.
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Television (often abbreviated to TV, T.V., or more recently, tv; sometimes called telly, the tube, boob tube, or idiot box in British English) is a widely used telecommunication system for broadcasting and receiving moving pictures
..... Click the link for more information.
1. Electron guns 2. Electron beams 3. Focusing coils 4. Deflection coils 5. Anode connection 6. Mask for separating beams for red, green, and blue part of displayed image 7.
..... Click the link for more information.
Television (often abbreviated to TV, T.V., or more recently, tv; sometimes called telly, the tube, boob tube, or idiot box in British English) is a widely used telecommunication system for broadcasting and receiving moving pictures
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plasma display panel (PDP) is a type of flat panel display now commonly used for large TV displays (typically above 37-inch or 940 mm). Many tiny cells located between two panels of glass hold an inert mixture of noble gases (neon and xenon).
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Television (often abbreviated to TV, T.V., or more recently, tv; sometimes called telly, the tube, boob tube, or idiot box in British English) is a widely used telecommunication system for broadcasting and receiving moving pictures
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liquid crystal display (commonly abbreviated LCD) is a thin, flat display device made up of any number of color or monochrome pixels arrayed in front of a light source or reflector.
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A computer display monitor, usually called simply a monitor, is a piece of electrical equipment which displays viewable images generated by a computer without producing a permanent record.
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Television (often abbreviated to TV, T.V., or more recently, tv; sometimes called telly, the tube, boob tube, or idiot box in British English) is a widely used telecommunication system for broadcasting and receiving moving pictures
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An LCD projector is a type of video projector for displaying video, images or computer data on a screen or other flat surface. It is the modern equivalent of the slide projector or overhead projector.
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A lenticular lens is a single convex lens that magnifies light through a prism effect.
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Television (often abbreviated to TV, T.V., or more recently, tv; sometimes called telly, the tube, boob tube, or idiot box in British English) is a widely used telecommunication system for broadcasting and receiving moving pictures
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An LCD projector is a type of video projector for displaying video, images or computer data on a screen or other flat surface. It is the modern equivalent of the slide projector or overhead projector.
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Television (often abbreviated to TV, T.V., or more recently, tv; sometimes called telly, the tube, boob tube, or idiot box in British English) is a widely used telecommunication system for broadcasting and receiving moving pictures
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For , see .


Digital Light Processing (DLP) is a technology used in projectors and video projectors. It was originally developed at Texas Instruments, in 1987 by Dr. Larry Hornbeck.
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