HD TV is a hot field, but also in the market definition is the concept of willful “violations”, although almost all were wearing high-definition TV guise, but many of them are “pseudo” high definition, if you decided to buy a high definition TV, the following 12 facts need to figure out.
“PDP (plasma) TV the image bright, colorful, beautiful, but it is the screen burn issues, life short,” “high-resolution TV display each image must be better than low-resolution TV to be clear and beautiful , a 1080p TV show effective than ordinary DVD, 720p is better than TV “…
A similar argument
many of them are correct, there are mistakes, if not clear, you are likely to be misled by these claims, the unnecessary waste of investment.
PCWorld has invited a group of experts to reveal the authenticity of these claims and put together the following 12 most common controversial issues, reveal the truth about these issues and help readers better understand these issues.
Flat-panel TV is HDTV?
LCD TVs, plasma TVs, microdisplay rear projection TV that these new television products in the market tend to be promoters are described as high-definition TV products, this is a misunderstanding. HDTV need to meet several conditions.
The physical resolution of the first high-definition television, or the number of pixels on the screen, to reach or exceed the display resolution, the current high-definition 720p and 1080i standards, there are two conditions to meet the high-definition TV, the vertical direction The resolution must be more than 720, so both the plasma TV, LCD TV or microdisplay rear-projection, the vertical resolution must be more than 720 (eg 1024 × 768,1280 × 768,1366 × 768,1920 × 1080, etc.) to meet the requirements of HDTV, the current domestic market price of 10,000 yuan or so plasma TVs are the physical resolution of a large 852 × 480, only standard-definition TV, it can not be a high-definition television.
Second high-definition standard TV screen aspect ratio of 16:9, the traditional 4:3 TV though can display 16:9 content, but the images should be compressed to adjust, can not be a high-definition television.
Really need built-in HD digital high-definition TV tuner, but currently the standard has not yet identified as relevant, not this request, the market products not yet built-in HDTV high-definition digital tuner.
Last HDTV to display high-definition content must be equipped with DVI or HDMI digital multimedia interface, can be connected to high-definition video playback device.
So users in the choice of flat-panel TV, pay attention to the points above, to determine whether the products of your choice to meet the HD condition.
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