How to see the common parameters of LCD TV?

Common parameters for watching LCD TV:

1, size

Refers to the diagonal length of LCD screen, in inches. For LCD, the nominal size is the actual screen display size.

2, the best resolution (true resolution)

Liquid crystal display (LCD) is a "digital" display mode. Its display principle is to directly process the analog signal output by the graphics card into a display signal with specific "address" information, and the color and brightness information of any pixel directly corresponds to the pixel point on the screen. Because of this display principle, LCD can not support multiple display modes like CRT display, and LCD can achieve the best effect only when displaying a picture with the same resolution as LCD panel. When displaying images with lower than optimal resolution, LCD adopts two ways, one is central display.

Step 3 compare

The contrast of LCD is actually the ratio of brightness, which is defined as: in a darkroom, the brightness (brightest) under a white picture is divided by the brightness (darkest) under a black picture.

4. Response time

Response time is an important parameter of LCD, which refers to the response time of LCD to input signals. It takes some time for LCD to switch from the brightest to the darkest after receiving the driving signal, and it takes some time for LCD to process the signal and add the driving information to the crystal driving tube after receiving the output signal of the graphics card, especially on the large screen LCD. This index of LCD directly affects the restoration of dynamic pictures. At present, the breakthrough in technology, the LCD with 1 ns response time has come out, which makes the response time of LCD no longer a bottleneck.

5. Angle of view

Many readers may think that the color of LCD is strange when they first see it, and the color effect is different from different angles. This is because some low-end LCD displays are distorted due to low viewing angle. Liquid crystal display (LCD) is a backlight display device, and the light it emits is provided by the backlight behind the LCD module. Liquid crystal "switches" the picture mainly by controlling the deflection angle of the liquid crystal, which inevitably leads to the LCD having only one perfect angle.

6. Maximum number of display colors

In the current LCD parameters, we often see two sets of data, 16.7M and16.2m. ..

7. Wide screen

Widescreen refers to the display screen with the screen display ratio of 16: 9 or 16: 10, which is closer to the golden section ratio of human vision. Compared with ordinary 4:3 display, widescreen display has better visual viewing effect, and can intuitively experience the openness and comfort of the display screen. When watching a movie on the screen, the picture looks more comfortable and easy to give the audience a sense of reality. At present, most movies are shot according to the specification of 16: 9, and high-definition digital TV also adopts the specification of 16: 9.

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