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About monitors презентация
Содержание
- 1. About monitors
- 2. Monitor - a device, designed for the visual display of information. About monitors
- 3. Monitor history starts from 1855. The
- 4. The first image, using a cathode ray
- 5. In 1907 Russian physicist Boris Rosing
- 6. Raster kinescope allows to display complex images.
- 7. Color kinescope has been developed in the
- 8. For the first time CRT was used
- 9. + small size and weight + no
- 10. + high contrast + color depth +
- 11. + small size and weight + low
- 12. + high refresh rate (120 - 240
- 13. Three-dimensional images without special glasses Projector, which
- 14. Thanks for watching!
Monitor - a device, designed for the visual display of information. About monitors
Слайд 3 Monitor history starts from 1855.
The first step is creation of
a vacuum glass vessel.
The second step is addition of electrodes.
The second step is addition of electrodes.
History
Слайд 4 The first image, using a cathode ray tube (CRT), was made
by Karl Ferdinand Braun. Many scientists improved CRT afterwards.
Braun tube
Слайд 5 In 1907 Russian physicist Boris Rosing developed a device, based
on Braun tube, capable to reproduce a moving image.
Vector kinescope
Слайд 6 Raster kinescope allows to display complex images. The first electronic television
kinescopes were raster, but first computer monitors used vector kinescopes.
Raster kinescope
Слайд 7 Color kinescope has been developed in the USA in 1950. The
first color TV was released in the USA in 1954.
Color kinescope
Слайд 8 For the first time CRT was used to display graphics on
the "EDSAC" computer in 1950.
CRT and computer
Слайд 9+ small size and weight
+ no visible flicker, interference from magnetic
fields
+ no problems with image geometry and clarity
+ low power consumption
- can display a clear image only with one ("normal") resolution
- low contrast and depth of black color
- dependence of the contrast on the viewing angle
- problem of defective pixels
+ no problems with image geometry and clarity
+ low power consumption
- can display a clear image only with one ("normal") resolution
- low contrast and depth of black color
- dependence of the contrast on the viewing angle
- problem of defective pixels
Liquid-crystal display
Слайд 10+ high contrast
+ color depth
+ stable uniformity of black and white
colors
+ long life (30 years)
- high energy consumption
- large pixels
+ long life (30 years)
- high energy consumption
- large pixels
Plasma display
Слайд 11+ small size and weight
+ low power consumption
+ ability to create
flexible screens
+ no need for backlighting
+ wide viewing angles
+ high contrast
- short life
- dearness
+ no need for backlighting
+ wide viewing angles
+ high contrast
- short life
- dearness
Organic light-emitting dispaly
Слайд 12+ high refresh rate (120 - 240 Hz)
+ almost unlimited life
time
+ pixels are not susceptible to degradation
+ very low power consumption
- greater thickness (in comparison with LCD)
+ pixels are not susceptible to degradation
+ very low power consumption
- greater thickness (in comparison with LCD)
Laser video display
Слайд 13Three-dimensional images without special glasses
Projector, which can create an image of
high definition and contrast just a few centimeters from the surface
Bendable tablets
Transparent monitors
Bendable tablets
Transparent monitors
Near future
