In Japan, there is a lot of TV. It is produced in the factory. Many TV are domestic. Made in China is almost cheap than made in Japan. Technologies of Japan are very high. In this time, I surveyed TV of technology in present from past. Development of technology was influential with a lot of people all over the world. There is country that there is no TV in house, but developed nation’s house almost put on it. TV started from white and black. It came out February first in nineteen fifty three. And then it bought normally. In half of nineteen seventy, factories came out color TV. It must be innovation at the time. The picture of TV was not so good. It may be worse people’s eye sight.
Size of TV also changed at old time. It has been a TV tube since appearance of TV. But thanks to development technology, TV size was small little by little. A TV tube is so big. And if the screen expended, it must be depth. So liquid crystal TV invented. It gets thin as usual objects. Recently, plasma TV came out in Japan. It is very fine a picture. It only has big screen. Liquid crystal and plasma has good point and bad point each other. For example, plasma has big screen and moving is smoothly in the TV. But consumption energy is high cost. Liquid crystal has low cost and has small size screen. But moving scene is not so better than plasma’s.
Next development is about cable TV. The others, there is BS TV and CS TV. It be connecting to satellite broadcasting. If there were cable TV, we could watch a lot of TV genre. For example, Sky perfect TV and WOWOW and so on. If you watch the sports program, you should watch GAOLA. It can watch main sports. Now, it will change on the ground digital broadcasting.
TV world will develop more and more in the future. It is more convenient. I must follow on the heels of information society.
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