Large LCD splicing screens seem simple, but the differences and complexities behind each product also cause trouble for buyers. For LCD splicing screen products, consumers must really try to understand before buying. How to buy LED LCD TVs has become a topic of concern to many consumers under the premise of not considering the price . The following Korean electrical appliance manufacturers will show you what preparations you need to make before purchasing?

1. Select the screen size

When we buy an LED LCD TV , the first thing to consider is the screen size. For LCD splicing screens, the size of the panel is the size of the splicing unit. For screens with the same specifications, the display area of ​​LCD is larger than that of CRT. Due to the different eye habits of each person and the different purposes of users, this also determines that the size of the splicing screen to be purchased is also different.

2. Choice of response time

At present, the biggest selling point of LCD splicing screens is to continuously improve the response time of the system. The response time determines the number of photo frames that the splicing screen can display per second. Generally, when the image display speed exceeds 25 frames per second, the human eye will regard the rapidly changing images as continuous images. In other words, the shorter the LED LCD TV's response time, the more perfect the effect of rapidly changing pictures will be displayed.

3. Brightness/contrast selection

Liquid crystal is a substance between liquid crystal and liquid crystal, and it cannot emit light by itself, so the brightness of the backlight determines its brightness. Generally speaking, the higher the brightness of the LED LCD TV, the more vivid the displayed color and the better the realistic effect. The brightness unit of LCD splicing screen is cd/㎡ (lumen), and the brightness of ordinary LCD splicing screen is 250cd/m2.

If the brightness is too low, the displayed color will become dim, and you will feel very tired after watching for a long time. Of course, it's not brightness. The higher the contrast, the better the effect. Watching the high-brightness LCD screen for a long time will make the eyes tired easily. High-brightness LED TV splicing screens will also cause excessive wear and tear on the bulb and affect the service life, so it should be considered when purchasing.

4. Selection of color reproduction ability

The color of LCD splicing screens has always attracted much attention. At present, many manufacturers have proposed two standards of 16.2M and 16.7M. These two standards can intuitively reflect the color reproduction ability of the LED TV splicing screen. If the color requirements of the LED LCD TV are relatively strict, it is best to choose a 16.7M product.

5. Angle selection

Since the light of the LED TV splicing screen is emitted forward through the liquid crystal at an angle close to the vertical angle, when we observe the screen from other angles, its clarity will not be as good as that of the CRT splicing screen, but there will be obvious color distortion. This is caused by the size of the viewing angle, specifically, the viewing angle is divided into a horizontal viewing angle and a vertical viewing angle. When choosing an LED LCD TV , try to choose one with a large viewing angle.