Full Color LED Display Viewing Angle
First, full-color LED display viewing angle definition
LED display viewing angle refers to the angle at which the user can clearly observe all the contents on the screen from different directions. The viewing angle can also be understood as being able to see the maximum or minimum angle of the screen. And the viewing angle is a reference value. The full-color LED display viewing angle includes two indicators, horizontal and vertical. The technical parameters include this description (visual angle: 140°/140°); the maximum viewing angle is 140°, and the maximum horizontal and vertical viewing angles are 140°. After over 140°, the viewing effect is not good or there is Dead zone.
The horizontal viewing angle means that the vertical normal line of the full-color LED display (ie, the vertical imaginary line in the middle of the led display screen
) prevails, and normal viewing is still possible at a position perpendicular to the left or right of the normal line. Display image, this angle range is the full-color LED display horizontal viewing angle; also if the horizontal normal prevail, the upper and lower viewing angle is called vertical viewing angle. In general, the viewing angle is based on the change in contrast. When the viewing angle is increased, the contrast of the display image seen at this position will decrease, and when the angle is increased to a certain degree and the contrast ratio drops to 10:1, this angle is the maximum viewing angle of the full-color LED display screen.
Second, full-color LED display viewing angle influence factors
The larger the full-color led screen can be seen by the audience, the better, so the larger the viewing angle, the better. However, the size of the viewing angle is mainly determined by the die packaging method, so it must be carefully considered when packaging the die.
In addition, the viewing angle has a lot to do with the viewing angle and distance. However, at present, most of the manufacturers of LED display screens are unified. If you customize the angle according to the situation on the spot, the cost will be high. In addition to the same chip, the higher the angle, the lower the brightness of the LED full-color screen.
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