基于透视学原理的非等像素间距室外LED屏

室外高空的LED屏,在仰视观看过程中,因为有透视的现象,垂直方向视觉像素间距会变小。本文尝试设计一种垂直像素间距大于水平像素间距的LED屏,以达到减少LED灯数量、节约成本的目的。在仰视观看时,能给人以水平、垂直像素间距相等的视觉效果。若在远处观看,又能因人眼角分的局限,看不出图像颗粒感。

Unequal Pixel Pitch Outdoor LED Screen Based on Perspective Principle

When looking at the outdoor LED display installed in a height,because of perspective,the vertical visual pixel pitch will become smaller.This article attempts to design a LED display with vertical pixel pitch>horizontal pixel pitch in order to reduce the number of LEDs and save costs.When looking up,it can give people a visual effect with equal horizontal and vertical pixel pitch.If viewed from a distance,the graininess of the image cannot be seen due to the limitations of the minute of arc of the human eyes.