How to make a full-color LED electronic display？
Time:2019-10-21
Views:94
How to make a full-color LED electronic display
LED display is one of the most common large screens on the market, and the brightness of the display has been beyond the reach of current technology. The outdoor LED display is affected by the outdoor environment, and it is easy to deviate from the white field balance of the display image at normal temperature, color distortion, etc., such as below 0 degrees Celsius, the image shows a dark color, and the brightness is insufficient. When the temperature is above 30 degrees Celsius, the color is too bright. Let‘s take a look at how to use the compensation technique of the calibration curve to correct the image color, so that the image is less affected by the environment. In a full-color LED display, the brightness balance of the RGB three primary colors determines the balance of the white field. If the brightness of one of the RGB three primary colors drifts, the quality of the image will be seriously affected, the white field balance will be destroyed, and the color of the displayed image will be distorted. The relationship between the forward voltage VF of the R, G, and B LEDs, the forward current IF, and the IF and the luminance L. It can be seen that after the threshold voltage is exceeded, as the VF increases, the IF increases slowly and then increases sharply.
Mailme
Chat Now