What is the viewing angle?

The viewing angle of the LED display is also known as the half-power angle. It refers to the angle formed between the two observation directions of the same plane and the normal direction when the brightness in the observation direction drops to half the brightness in the normal direction of the LED display. The specific value can only be measured with professional instruments.

The viewing angle can also be understood as the maximum or minimum angle at which the screen can be seen clearly. In layman’s terms, it is a reference value of the maximum or minimum angle at which the human eye can clearly see the display screen. The viewing angle of the full-color LED display includes two indicators, horizontal and vertical.

Horizontal viewing angle of LED display

The horizontal viewing angle refers to the vertical imaginary line in the middle of the full-color LED display screen, and the image can still be seen normally at a certain angle on the left or right side of the normal line. This angle range is the horizontal viewing angle of the LED display.

The horizontal viewing angle here refers to the vertical way of the LED display (the vertical false line in the middle of the LED display) line. At left and right angles perpendicular to the normal, the human eye can clearly see the information displayed on the display.

Vertical viewing angle of LED display

Likewise, if a horizontal normal is used, the top and bottom viewing angles are called vertical viewing angles. Generally speaking, the viewing angle is based on the contrast change as a reference standard. When the viewing angle increases, the contrast of the displayed image seen at this position will decrease. When the contrast is reduced to 10:1, this angle is the maximum viewing angle of the LED display.

The parameters of BAITRONICS HD series high-definition LED small-pitch display screen are explained as follows: Hor.&Vert. 180°, and the value here indicates that the maximum angle of the horizontal and the vertical viewing angle is 180 degrees. After more than 180 degrees, there will be blind spots or picture distortion when viewing the LED screen with the naked eye.

The vertical viewing angle is based on the horizontal normal of the LED display. At the angles above and below the vertical normal, the human eye can clearly see the content on the display.

How to choice the right viewing angle?

At present, the viewing angles of most LED display manufacturers are unified. For a high-quality LED display product, the larger the viewing angle, the fewer blind spots, and the better the viewing effect of the audience from different angles.

Therefore, you must consider carefully when choosing the LED display package die, because the size of the viewing angle is mainly determined by the die packaging method. If you need to customize the viewing angle, the budget will increase accordingly, so you must consider the required viewing angle before choosing an LED display.

The following are the recommended values of BAITRONICS for the viewing angle of some places

• Small meeting place, recommended: horizontal 60-90 degrees, vertical 60 degrees
• Large meeting places, recommended: 90-160 degrees , more than 90 degrees vertically
• For super large conference venues, the recommended: 160-180 degrees horizontally, and more than 90 degrees vertically
• Indoor concert, recommended: horizontal 90-120 degrees, vertical 60 degrees
• Outdoor concert, recommended: horizontal 120-160 degrees, vertical 60-90 degrees