Sources
Help build the largest human-edited directory on the web.
Submit a site - Become an editor
Wikipedia. Licensed under the GNU Free Documentation License.
Are you an expert in this subject? Join the discussion and share your knowledge at Wikipedia.org.
Comparison of display technology
From Wikipedia, the free encyclopedia
This is a comparison of various properties of different display technologies.
Contents |
| Shape of Screen |
diagonal screen size |
Typical Use | Usable in bright room | ||
|---|---|---|---|---|---|
|
|
|
||||
| Eidophor Front Projection | Flat |
by brightness) |
TV | No | |
| Shadow mask CRT | Spherical curve or flat |
|
|
Computer monitor, TV | Yes |
| Aperture grille CRT | Cylindrical curve or flat |
|
|
Computer monitor, TV | Yes |
| Direct view Charactron CRT | Spherical curve |
|
|
Computer monitor, Radar display |
No |
| CRT Self-contained Rear Projection | Flat lenticular |
|
|
TV | Yes |
| CRT Front Projection | Flat |
by brightness) |
TV or presentation | No | |
| PDP (Plasma Display Panel) | Flat |
|
|
TV | Yes |
| Direct View LCD | Flat |
|
|
Computer monitor, TV | Yes |
| LCD Self-contained Rear Projection | Flat lenticular |
|
|
TV | Yes |
| LCD Front Projection | Flat |
by brightness) |
TV or presentation | No | |
| DLP Self-contained Rear Projection | Flat lenticular |
|
|
TV | Yes |
| DLP Front Projection | Flat |
by brightness) |
TV or presentation | Yes | |
| LCoS Self-contained Rear Projection | Flat |
|
|
TV | Yes |
| LCoS Front Projection | Flat |
by brightness) |
TV or presentation | No | |
| SED | Flat |
|
|
Computer monitor, TV | Yes |
| FED | Flat |
|
|
Computer monitor, TV | Yes |
| OLED | Flat |
|
|
Computer monitor, TV | Yes |
| IMOD | Flat |
|
|
Mobile phone[11] | Yes |
| Virtual retinal display | Any shape |
|
Experimental, possibly virtual reality | Depends on system | |
Different display technologies have vastly different temporal characteristics, leading to claimed perceptual differences for motion, flicker etc.
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 to avoid flickering.
Large-Screen Television Technology
- ^ Shadow mask CRT
- ^ Aperture grille CRT
- ^ Self-contained Rear Projection CRT
- ^ Plasma Display Panel
- ^ Direct View LCD
- ^ LCD Rear Projection
- ^ DLP
- ^ LCoS
- ^ SED
- ^ OLED
- ^ IMOD