Onumen Technology CO., LTD.
Onumen Technology CO., LTD.

What Is the Reason for Inconsistent Brightness in Foldable LED Screen?

With the advancement of production technology, foldable LED screens have become essential tools in many occasions, both indoors and outdoors, to showcase impressive visual effects. However, sometimes we may find inconsistent brightness on foldable LED screens in the industry, which not only affects the quality of the image but also the audience's understanding and acceptance of the content. So do you know why the brightness of foldable LED screens is inconsistent? Let's take a look:


Reasons for inconsistent brightness on foldable LED screens:

Uneven quality of LED chips

LED chips are the basic components of foldable LED screens, and their quality directly determines the brightness and uniformity of the screen. Some low-priced LED chips may have the problem of uneven quality and significant differences in brightness. In order to reduce costs, some manufacturers may use different brands or batches of LED chips, which can easily lead to inconsistent brightness.


Choose a reliable supplier of foldable LED screens and explicitly request the use of stable LED chips. In addition, inquire whether the manufacturer performs strict brightness calibration and color matching before the finished product leaves the factory.

Power Stability Issues

The brightness of a foldable LED screen is not only related to the quality of the LED chips but also to the stability of the power supply. If the output current of the power supply is unstable, it can lead to inconsistent brightness from different regions of the LED chips. Additionally, when the size of the foldable LED screen is large, long-distance power transmission can result in voltage drop, causing uneven display effects.


Folding LED display screens should use power supply equipment with good stability to ensure stable output current. It is advisable to minimize the power transmission distance or use cable reinforcement techniques for long-distance transmission to provide stable voltage.

Inaccurate Color Calibration

Color calibration is a crucial step in ensuring the uniform brightness of a foldable LED screen. Precisely calibrated screens ensure that each pixel unit across the entire screen maintains consistency in brightness and color. However, inaccuracies in color calibration due to production processes and transportation of finished screens can be a significant cause of inconsistent brightness.


When purchasing a foldable LED screen, inquire with the supplier about whether strict color calibration has been conducted. If the screen exhibits inconsistencies in brightness during use, professional color calibration instruments can be used for adjustments.

Temperature Effects

Temperature variations can also be a potential cause of inconsistent brightness in a foldable LED screen. The light efficiency of LED chips is significantly affected by temperature. Both excessively high and low temperatures can lead to inconsistencies in LED chip brightness.


Maintain a stable working environment temperature for the foldable LED screen and try to avoid extreme temperature conditions that could affect the screen. Heat dissipation devices can be installed around the screen to ensure effective heat dissipation.

In summary, to address the issue of inconsistent brightness in foldable LED screens, it is essential to consider multiple factors such as the quality of LED chips, power supply stability, color calibration, and temperature. Implementing these measures can effectively enhance the brightness consistency of foldable LED screens, leading to improved display performance.