LED screen: three tips to buy three + fix parameters

Introduction: from the performance parameters, the so-called good LED display, also refers to the display has a high gray level, high refresh rate, high utilization and other characteristics.

As the saying goes, the experts look at the door, watching the layman. LED display the exhibition audience a superb collection of beautiful things to linger, then we should be how to distinguish the LED display quality? Reporters with secret of Guangzhou LED exhibition manufacturers to teach well, a summary of the selection of high quality LED display. From the performance parameters, the so-called good LED display, also refers to the display has a high gray scale, Gao Shuaxin rate, high utilization and other characteristics.

Here are some of the specific characteristics of the LED display:

LED screen: three tips to buy three + fix parameters

The LED display is also called gray color or grayscale, refers to the brightness level of brightness. For the LED digital display technology, gray level is the decisive factor of the number of colors. In general, the higher the gray, the more colorful the display, the screen is more delicate, more likely to be rich in detail. High refresh rate refers to the number of times the electron beam on the screen to repeat the image scanning. The higher the refresh rate, the better the image (picture) is displayed. Refresh rate will directly determine the price, but because of the refresh rate and resolution of mutual constraints, so only in the high resolution to the high refresh rate of such displays can be called excellent performance. Currently on the market with an ordinary LED display refresh rate of 800 to 1500hz or so, more than 4000Hz of the high refresh rate. LED high utilization rate is not required to use the power LED, you can achieve the desired brightness, in addition, can also reduce the energy consumption of LED display. In the tenth session of the Guangzhou international LED exhibition, enterprises showing LED display different shapes, the ball shaped LED display, LED display, column type arc type and angle type LED display, use rate in space and form will be more efficient, this also means that the application range is more extensive.

From the perspective of visual effects, choose a good LED display can be from the following three aspects:

1, white balance effect. White balance is one of the most important indicators of the display screen. Color on the popular green colors of the ratio of 1:4.6:0.6 only shows the pure white, there is a deviation if the actual percentage point deviation will appear white balance, the general attention to the bias of blue and white or yellowish green. The white balance is mainly determined by the control system of the display screen, and the core has an influence on the reduction of color.

2, brightness and visual angle. Indoor full color brightness to above 800cd/m2, the brightness of outdoor full color in 1500cd/m2 above, in order to ensure the normal work of the image display, or because the brightness is too low and can not see the show. Brightness is determined by the quality of the LED core.

3, the surface smoothness of the display should be within + 1mm, in order to ensure that the display does not distort the image, local convex or concave will lead to the visual angle of the display dead. Flatness is mainly determined by the production process.