How to Fix Dim Display on LG OLED TV Tutorial

How to Fix a Dim Display on Your LG OLED TV: A Step-by-Step Guide

If you're experiencing a dim or automatically adjusting display on your LG OLED TV, there are several steps and adjustments you can make to resolve this issue. Here’s a comprehensive guide to help you improve your viewing experience.

Understanding the Cause

Before diving into the solutions, it's important to understand why your LG OLED TV might be dimming. The primary reasons include power consumption reduction and the prevention of OLED burn-in. Features such as auto dimming, energy saving, and AI brightness can contribute to this issue[1][2][4].

Adjusting Picture Modes and Settings

One of the simplest ways to address a dim display is to change the picture mode.

Press the Settings button on your LG TV remote.
Navigate to Picture and select Select Mode.
Choose the Vivid mode, which is often brighter and more vibrant than other modes[2][3][4].

If changing the picture mode does not resolve the issue, you can adjust the brightness settings directly.

Go to Picture Settings > Advanced Settings > Brightness.
Adjust the OLED Pixel Brightness to your preference. Note that you cannot change this setting if the TV is in Auto Power Saving mode[3][4].

Disabling Energy Saving and AI Brightness Features

Energy-saving features can significantly dim your screen.

Navigate to All Settings > Picture > Advanced Settings.
Look for the Energy Saving option and set it to Minimum or Off. This will prevent the TV from automatically dimming to save energy[2][4].

Additionally, disabling AI brightness can help stabilize the screen brightness.

Go to Picture Settings and look for the AI Brightness or Smart Picture mode.
Turn this feature off to prevent the TV from adjusting brightness based on the content[5].

For more advanced users, accessing the service menu can provide deeper control over dimming features.

Purchase an LG Service Menu Remote.
Press the IN START button on the remote.
When prompted for a password, enter 0413.
Navigate to the OLED menu (option 12 on the main menu).
Select the TPC Enable option and switch it to Off.
Scroll down to GSR Enable and turn that off as well.
Click the EXIT button on the remote and restart your TV[1].

Performing an AV Reset

If the above steps do not resolve the issue, performing an AV reset can revert all audio and video settings to their default state.

Exit all internal apps and menus on the LG TV.
Press the Mute button repeatedly on the LG remote until Select a Menu Item appears on screen.
Select AV Reset. Note that this will delete all custom picture and sound settings[2][3].

Running a Picture Test

To diagnose if the issue is with the TV's screen itself, you can run a picture test.

Press the Settings button on your LG TV remote.
Select All Settings > Picture > Picture Test.
Follow the on-screen prompts to check the screen condition. If the picture looks fine during the test, the issue may be with the settings rather than the screen itself[3].

By following these steps, you can significantly reduce or eliminate the auto dimming issues on your LG OLED TV, ensuring a more consistent and enjoyable viewing experience.