The Factors Influence Full color LED display
First, full color LED display visual angle definition
The viewing angle is the angle at which the user can clearly observe all the content on the screen from different directions. The viewing angle can also be understood as the ability to see the maximum or minimum angle of the screen. And the viewing angle is a reference value, LED full color display viewing angle, including horizontal and vertical indicators.
Such as Shenzhen LightS led display (http://www.leddisplayls.com/), technical parameters which have described (viewing angle: 140 ° / 140 °); that is the maximum viewing angle 140 °, horizontal and vertical maximum viewing angle of 140 °, more than 140 degrees, the viewing effect is poor or there is a blind spot.
Horizontal viewing angle that is full-color LED display vertical line (that is, led the middle of the vertical screen hypothetical line) prevail, perpendicular to the left or right side of the normal position is still able to see the normal position Display the image, the angle range is the LED full color display horizontal viewing angle; the same if the horizontal norm, the upper and lower viewing angle is called the vertical viewing angle. In general, the viewing angle is based on the contrast change as a reference standard. When the viewing angle is increased, the contrast of the displayed image at that position will decrease, and when the angle is increased to a certain extent and the contrast is reduced to 10: 1, this angle is the maximum viewing angle of the full color LED display.
Second, full color LED display visual angle factors
Full-color led screen by the audience can see the larger the better, so the greater the better viewing angle. But the size of the viewing angle is mainly determined by the way the die package, so when the package die must be carefully considered.
In addition, the viewing angle and viewing angle and distance have a great relationship, but most of the current manufacturers are unified point of view, if the situation according to the scene to give you custom angle, the cost will be high. Also the same chip, the greater the angle the lower the LED full color brightness.