LED Display Brightness Adjustment Easy Instructions (2023)!

How to adjust LED display brightness? And how to work with a LED display light sensor and timetable to better do the adjustment? In this article, we will give you detailed guidance by showing you corresponding steps and pictures! 

Follow us, you will master LED displays brightness adjustment. Novastar NovaLCT will be set as the example for today, and you can apply the rules to any other LED display control software!

1. Set Your LED Display Brightness Now

(1) First, please log in the NovaLCT software, and choose ‘Brightness’ on the interface.

LED Display brightness

(2) Second, choose the right brightness adjustment mode. There are two modes: manual adjustment, and auto adjustment.

1.1 Manual Adjustment

The main application scenario is for rental LED display. Just drag the bar, and you can achieve the instant adjustment for the screen.

Please notice that “Grayscale” is generally for indoor LED display, and it will have better performance in grayscale when changing the brightness. And “Contrast” is typically for outdoor SMD LED display when the ambient light is higher.

After finishing the setting, please click “Save to HW” to send the parameters to LED receiving card.

manual led displays brightness

1.2 Auto Adjustment

Auto adjustment is for fixed LED displays. Click “Wizard Settings” on the bottom to turn to the setting interface.

auto adjustment

As you can see, there are two modes here: advanced adjustment and adjust by the light sensor.

You can easily understand their meanings literally according to the explanation under the terms. For advanced mode, you can set a timetable for adjusting brightness automatically as the system will change brightness at different time points.

However, for the other mode, the brightness will be only controlled by the LED light sensor.

If you choose this mode, please connect the light sensor physically to the LED display controllers first. It is worth noting that only Novastar MCTRL300 and MCTRL600 support direct connection. Otherwise, there should be an MFN300 card for the connection.

NovaLCT led display brightness adjustment

For the light sensor mode, please choose “Light Sensor Test Mode”, and then click the button “Refresh” two times to update the newest values.

After finishing the above steps, check “Whether to Enable”.

light sensor setting 1

2. More Settings for Ligh Sensor Mode

You can achieve flexible automobile brightness adjustment by light sensor settings.

2.1 Noticing Points

Here are some points you should notice:

(1) For multiple controllers cascading, the LED display light sensor should connect to the first controller, or MFN300 card that connect to the first controller.

(2) Night mode can not run offline.

(3) Multiple screen configuration does not support offline mode.

2.2 Quick Section Division Configuration

For this part, we need to set both maximum values and minimum values, and how many sections between them. The recommended number is 20 sections.

There is also a night mode for you to check if you do not want your display to become too bright at night. Please remember this mode can not be operated under offline state.

LED screen brightness section setting

3. More Settings for Adjustment Mode

In the auto adjustment mode, click “Add” to add specific time points for different brightness levels.

aotu adjustment mode

And then, set the time points and brightness level in the pop-up windows.

specific time points settings

4. What If I Want to Use Offline Mode?

The first thing you need to do is to set the right time for the LED controller.

Just turn to your NovaLCT interface, and choose “Hardware Information” from the pull-down list of settings.

LED Display hardware setting

And then, click “Set”, and “OK” on the pop-up window to set the computer time to the hardware successfully.

led screen time setting

5. To Sum up

Today we discuss how to set LED display brightness adjustment. Here are two modes: light sensor mode and auto mode. You can choose one of them based on your needs. Detailed steps are introduced to you through pictures and instructions. For any more useful knowledge you need to know, welcome go to our LED Display knowledge base now!