Презентация на тему по английскому языку на тему Modern television

92 years ago when on May 26th 1927 John LogieBaird

publically demonstrated television.
In 1928 the Baird Television Development Company (BTDC) completed the first trans-Atlantic television transmission, between London and New York

vacuum tube with electron guns that beam red, green

and blue electrons onto a phosphor screen.
The rays scan the dark screen, building up thousands of red green or blue dots to create picture.

meant retuning an existing Freeview set or buying a

digital box if your TV wasn’t a digital model.

and is much sharper, colourful and more detailed. It’s

no surprise stars were worried their flaws and wrinkles would be more visible with the advent of HD TV.

being pushed as the next big viewing trend
But despite

the efforts of manufacturers, 3D TV failed to capture the public’s imagination.
It wasn’t particularly comfortable to watch, you had to wear glasses and you needed to sit directly in front of the set to get the full benefits of the technology.

screens became popular
There are two different types of LED

TV.:
Edge-lit panels have lamps around the edge of the screen.
 Back-lit panels have LEDs all over the back of the screen.

built-in internet connectivity. This allows them to connect to

a router, usually via an Ethernet cable or plug-in wi-fi dongle, to get online.

but without a backlight.
OLED is also physically flexible,LG created

a screen that rolls up . This could dramatically change the way a home TV looks, opening up the possibility of curved sets and even screens that can be peeled off the wall.

choose exactly what you want to watch, so you

are not at the mercy of TV schedulers

high resolution is in the amount of detail you

will be able to see. From the petals of a flower in a nature programme to beads of sweat on a footballer’s face, pictures will be incredibly realistic and close to real life.

prefer to spend their free time watching light TV

programmes while others prefer watching political and educational programmes.

can spoil the impression of any programme.