Perhaps to buy a TV season, most recently many of my friends asked: "You see my house, what kind of TV to buy nice?" I am very pleased that one thing that we have rarely asked "What brand is good" and to ask "what good TV," the. TV is now on the market are many varieties: LCD TV, plasma TV, projection TV, CRT TV, Projection TV ... ... there are rear projection CRT rear projection, LCD rear projection, DLP rear projection and so on. These products are also at a variety of sizes and models to choose a really suited to their exact use is not easy. It does not matter, however, we can according to the specific circumstances of living and working principle of these TV sets and features to the distribution of their position at home.
Basic knowledge

Here we first color TV sets and watch the size of the environment need specific knowledge about knowledge.

TV size

First of all, the size of the television. Usually in terms of TV screen size is measured by the diagonal length. We usually say 29 inches, 34 inches and so on means that this target. In accordance with the 1 inch = 2.54 centimeters of the standard to calculate, we can get this form below:

15 inches = 38.1 centimeters

17 inches = 43.18 centimeters

20 inches = 50.8 centimeters

21 inches = 53.34 centimeters

25 inches = 63.5 centimeters

29 inches = 73.66 centimeters

30 inches = 76.2 centimeters

34 inches = 86.36 centimeters

42 inches = 106.68 centimeters

43 inches = 109.22 centimeters

45 inches = 114.3 centimeters

50 inches = 127 centimeters

55 inches = 139.7 centimeters

60 inches = 152.4 centimeters

70 inches = 177.8 centimeters

100 inches = 254 centimeters

Above the table is more often to see the size of the TV, but TV on the market today, many varieties, there are many sizes from a strange, such as Changhong, there are 38 inches rear projection, etc., as the method for calculating and above. But some TV models in nominal figures are not necessarily the size of TV, where the need for attention. For example, there is a brand of LCD TV LC-32D9W, although written 32, but it is actually the 30 inches.

Watching TV from a reasonable

In addition to projection, the other watch TV from a reasonable-sized color lcd tv mounts are about 4 times. For example, if it is 20 inches (50.8 cm) of the television, watching the distance of 20 inches, preferably 4 times, that is, from the television screen a little more than two meters more appropriate location. Views of the reasonable range of television from the following table:

Watch TV from a reasonable size

15 inches 1.52 meters

17-inch 1.73 meters

20 inches 2.03 meters

21 inches 2.13 meters

25 inches 2.54 meters

29 inches 2.95 meters

30 inches 3.05 meters

34 inches 3.45 meters

42-inch 4.27 meters

43 inches 4.37 meters

45 inches 4.57 meters

50 inches 5.08 meters

55 inches 5.59 meters

60 inches 6.10 meters

70 inches 7.11 meters

Note: The above data are the size of the selection of television reference, the actual distance and personal habits of the. In addition, the size of the projector has nothing to do with this data.

Watching television reasonable light

TV should be here on the classification. Generally, when watching television, some background must be light, so many people at home will be placed when the decoration of the wall television with a small light source, or when watching television in the open light a small lamp behind. 70 inches below the TV is concerned, because it could not occupy all the vision of people, it would be good to have ambient light in order to avoid the television next to the high-brightness and darkness in sharp contrast to the formation of too much, so that eye fatigue. The strength of the light you can just see the words of this newspaper for the best.

However, there is an exception, that is, when using the projector, the best there is no external source of interference, because the size of projection is usually greater than 100 inches, it can occupy the entire field of vision, there is no problem of eye fatigue. In addition, the most important thing is that the projector screen is usually used in white, black part of the projector is in no light on the past performance. So if there is any other light source, black is not pure, and will affect the level and color.

TV viewing angle

If you choose the CRT (cathode-ray tube) television, the issue was not great, but if the choice is rear projection, plasma or LCD TV, the problem is more apparent. Normally, the three television restrictions as a result of the working principle, a smaller viewing angle, which is a particularly serious problem of projection. In the current rapid development of TV technology today, LCD color TV has the largest viewing angle of 170 degrees can be achieved, but the projection can not. Visual point of view the size of the different models based on color differences, so the choice needs to pay particular attention to this and your TV at home has a direct bearing on display.

The technology is well developed now, some good educational content has become the audio-visual materials are produced not only feel attractive again, placed such a good use of resources is indeed a pity. How can use of it? Each is justified.

I think, 1, if the children watch TV, first of all to avoid the problem of myopia, if watched television, the means to accept a number of audio-visual education, learning a number of knowledge, and some raise, but short-sighted, it is not worth the candle.

2, the television screen and music is indeed moving, but because it is only a one-way acceptance, the impact of the development of the child's thinking skills and reading ability, it is worth. May think that children need to reflect on the face of the books and exercises, the mind actually occur, such as electro-acoustic-ray images easily, and that the TV screen more attractive to stimulate ah! Those in need who are willing to do the thinking and mental costs to learn about these things.

3, we adults need to pledge to improve the capacity of self-control and strict adherence to not look at TV show commitment. I love watching movies like that with TV, I love that with a good, non-original card abroad looking at a day not more than 1 hour, and to accompany children to look at is to see. To the healthy growth of children, we adults need a firm belief in our commitment.

4, the children are superb intellectual development period, we hope that through the television in their children's lives rich, raise the intellectual level of children.

5, before the summer recess, we have decided to buy a TV, but now is not like a good plasma tv brackets, or LCD TV good. From the cost point of view, I have decided to buy a Nissan, made in China who told nothing of the quality of Nissan. Jackie Chan try to figure out the last meaning that if something pleasing, but also the quality of the issue spoke of television, he said that Nissan is the more assured that will not explode. Take what happened today, the Woman of the Tang trial, those who have the ability to think, but also to come up with a 12.

6, to be accepted mediocrity, it is necessary to stability is maintained, should be far-sighted, know what is important and what is secondary.

7, continued to struggle, the afternoon of running, let alone run!