众所周知，对于LED显示屏而言，对比度是重要参数之一。对比度越大，图像越清晰，色彩越艳丽。市面上LED显示屏的对比度差异巨大，数值上动辄就差了好几个位数。
As we all know, for LED display, contrast is one of the important parameters. The greater the contrast, the clearer the image and the more colorful it is. The contrast difference of LED display on the market is huge, and the value is often several digits worse.
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市面上某SMD LED显示屏与某全倒装Mini COB显示屏数据对比
Data comparison between a SMD LED display and a full flip Mini cob display on the market
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为什么差异那么大？
Why is the difference so big?
根据对比度的计算公式：对比度＝发光时的亮度（发光亮度）/不发光时的亮度（反射亮度）可知，想要提高LED显示屏对比度，主要方法包括提高显示屏的亮度，使“亮的更亮”，以及降低显示屏表面的光反射系数，使“黑的更黑”。
According to the calculation formula of contrast: contrast = brightness when emitting light (luminous brightness) / brightness when not emitting light (reflection brightness), the main methods to improve the contrast of LED display screen include increasing the brightness of the display screen to make it "brighter" and reducing the light reflection coefficient of the display screen surface to make it "darker".
那么你知道在实际应用中，造成小间距LED显示屏对比度差异的原因包括什么吗？
Do you know what causes the contrast difference of small spacing LED display in practical application?
芯片大小不同
Different chip sizes
一般来说，所用芯片越小，LED显示钢制闸门 钢坝 保定轻钢别墅 保定平面设计培训 保定室内设计培训 保定办公家具 保定空调维修 屏的对比度就越高。
Generally speaking, the smaller the chip used, the higher the contrast of the LED display.
在相同点间距条件下，LED芯片尺寸越小，黑区面积就越大，不发光时的亮度就越低，虽然发光面积减少，但对比度获得大幅提高。这是目前最直接最有效提高对比度的做法。
At the same point spacing, the smaller the size of the LED chip, the larger the area of the black area, and the lower the brightness when it does not emit light. Although the luminous area is reduced, the contrast is greatly improved. This is the most direct and effective way to improve the contrast.