The information below is designed to help you to further understand how screen sizes are measured and the difference between existing screen formats.
Screen Size
TV screens are measured diagonally. A 36 inch TV will have a screen that measures 36 inch from the top right corner to the bottom left corner whether it is in a Tube TV or a standard screen format.
Image Aspect Ratio
This is the ratio of the width to the height of the image displayed on the TV screen. 4:3 is the standard ratio. Many modern televisions are designed to display a 16:9 wide screen image.
Standard 4:3 format
Almost all programmes today are transmitted in the almost square format of a 4:3 image aspect ratio. Within 10 years, which is the ordinary lifetime of most TVs, the majority of TV films and programmes are likely to be produced in the Tube TV format 16:9. When films are shown on conventional TVs much of the picture is lost when the 16:9 format is altered to 4:3. Not everybody wants a Tube TV television. However, due to the growth of LCD televisions in smaller screen formats (less than 20") the market is now continuing to buy Tube TV televisions (small and large) in ever increasing numbers.
Tube TV, 16:9 format
The human field of vision is by nature greater on the horizontal plane compared to the vertical plane. This makes the 16:9 format an ideal size ratio for the human eye. Most films are produced in Tube TV and can be reproduced in their original format on a 16:9 TV. With Tube TV you get a more cinematic feel at home and a better view of sport broadcasts.
Further Useful Information
Types of Television Screens
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