Definition HD Ready or Full HD?

HD Ready TV displays at least 720 lines, while a Full HD displays at least 1080 lines. 1080 lines? After reading the previous chapter dedicated tuner TNT, is tilt your mind! This is actually the definition that allows to fully value the TNT HD, or even movies on Blu-ray, also encoded on lines 1080. This is not a choice. Indeed, we must view the image on a large TV, or be located near the screen to see the differences between HD Ready and Full HD. Thus, the TV 32 inches or less may be satisfied with a definition HD ready for the little one looks at more than 2.50 m. Between 37 and 42 inches, depending on the distance that separates you from the screen ... and your visual acuity. In addition, buying a Full HD model is strongly recommended.
Of course, the Full HD models are more expensive. But they are often of better quality and a more beautiful models HD Ready small. It will therefore be especially careful about choosing a TV 26 or 32 inches. These sizes where there is rarely better and often worse.
Since 2009, the Full HD tends to take precedence over the HD Ready, and only a few TV input range offer even slabs 720p.

Should we believe the figure announced by the contrast?

You can simply ignore the contrast figure announced by the manufacturers. It is calculated in terms of maximizing this measure, although far from ideal for watching a movie. For example, the contrast of a TV announced at 1 000 000:1 falls around 1000 to 2000:1 with the settings displaying the best picture.
However, the increase in numbers in the range of a manufacturer allows you to compare the quality of different models it offers. These figures are of course incomparable from one manufacturer to another. Look rather to our measurements.

Plasma or LCD?

It is clear that the LCD is on the rise and alone represents the overwhelming majority of TV sales. The plasma is provided above? No, absolutely not! It presents a few arguments against the LCD: angles of ultra-broad vision, excellent color, an image very soft and natural, dense black, and a price often below the LCD of the same quality. For these reasons, they often favors the home-movie buffs - these maniacs of home cinema on a quest for the perfect image. However, they suffer from the slab marking when they leave a still image for too long. Their use is discouraged with game consoles and computers.
In contrast, the LCD has viewing angles closer and let some light through the dark when it shifts the axis of the screen. Furthermore, only the LCD to offer a good level of dense black. Indeed, residues of light always pass through the crystals LCD where they should be black.
They are, however, insensitive to the marking and marry well with game consoles and computers. TV Full HD 26 or 32 inches is also wonderfully versatile for use''TV / PC monitor.''

What is the 100 Hz and 200 Hz? How to get a picture perfect fluid?

Dense topic that we will try to sum up simply. Contrary to many myths, the 100 Hz has nothing to do with the fluidity of film. The confusion is that the TV offers 100 Hz, especially LCD, offering a way of thinning films. In fact, with plasma, 100 Hz is used simply to limit the flickering images, while LCDs as it reduces the effect of remanence (*) during rapid movements. A 200 Hz remanence is imperceptible.

So do not confuse the 100 Hz - 200 Hz or - with the Motionflow (Sony), the HDNM (HD Natural Motion Philips), Movie Plus (Samsung) ... which are systems that eliminate saccades films by calculating the intermediate images to film images of the original. These systems are essential for those who are allergic to the slightest tug. Sometimes they create a video that put off some, but it is always possible to disable them. We urge those who want the most useful options to buy a TV with such a function.

Audio files, video and photo

While many now offer TV playback photos or music in USB memory sticks or SD cards, very few among them can read the video. And of those we tested, none lit up all the files most common. So do not choose one of these TVs, thinking out of its platinum lounge, his or her PC hard drive multimedia. They are the only ones to carry out the task of video playback.

The difference between the LCD technology and operation of the plasma is therefore in the fact that an LCD screen, there is a light-based wrought by the LCD. But this work is not perfect, and when it comes to reproducing deep black, the role of liquid crystals (which must then keep all the light) is undermined. In contrast, plasma technology, the pixel emit no light when not solicited. This difference explains why LCDs are not getting as deep blacks that plasma screens, although their contrast tends to increase through a correction electronic attack and the use of a powerful lamp (which promotes Report white / black).

the LCD starting at 15 inches (38.1 cm) and leveled off around 70 inches (177.8 cm). Plasmas start them at 32 inches (81.28 cm) and reach 71 inches (180.34 cm). The screen size that best fits your room will determine a choice of technology. The following table will give you a little hint of hindsight based on the diagonal screen

* Its technical characteristics, referring to the lexicon mentioned above, paying particular attention to the depth of black (no image brightness) rather than contrast, and resolution offered by the screen;
* Its equipment and its ability to digitally compensate the glitches inherent in flat screens, be sure to include your forestall any need for such connections;
* Aestheticism, of course, and tastes and colors can not argue!


In an attempt to be comprehensive in our advice, we recommend you also think ahead to the site intended for your screen, in effect, lighting conditions, the environment surrounding your TV will be an important condition to time of purchase. For example, if you're in a brightly lit room, with multiple light sources, primary or secondary, a bright screen with high contrast and anti-reflection will be more suited to your environment.

Similarly, flat screens are electrical devices that it will be of help to increase your electricity bill. Therefore choose a preferred model whose power consumption is reasonable (eg knowing that a plasma power used generally 20% higher than that spent by an LCD panel of the same size).

Moreover, buying a flat screen is an important investment. It should therefore give careful thought to this expense and avoid many pitfalls that you might fall:

* Think that even if the programs are coming, the HD content are still rare, there is no point to rush on a flat screen immediately, even as displaying an SD signal (standard) is not more pleasant, especially for a television "Full-HD;
* Do you repeat, do not be fooled by the contrast ratio displayed in stores, prefer search the depths of black (the image details should appear in the dark parts of the screen, and black areas should suffer any inappropriate brightness);
* Running to the luminosity is in the same vein, an illusion which must not be tempted; brightness too high will not be a guarantee of quality, quite the contrary. Values close to 500 cd / m² is sufficient for most uses