LG GX OLED Calibration Settings

We used the following calibration settings to review the 55 inch LG GX (OLED55GXPUA), and we expect them to be valid for the 65 inch (OLE65GXPUA) and the 77 inch (OLED77GXPUA) versions as well. These settings should apply to most types of content, except for gaming or use as a PC monitor, which requires a few additional changes, listed below.

One of the first things we did was disable all of the Power Saving and automatic image modes options, as we don't want the TV to adjust the image during testing. For this TV, we set Energy Saving and AI Picture to 'Off', and we also disabled Eye Comfort Mode in the Picture menu. You should adjust these settings to your preference.

For SDR content, there are a whopping 10 preset picture modes. We recommend choosing the 'Expert (Dark Room)' Picture Mode, as it is the most accurate one out of the box, and allows for the most customization. If you watch in a brighter room, 'Expert (Bright Room)' is almost as accurate.

We recommended setting the Contrast to '85', Sharpness to '10', Color to '50', and Tint to '0'.

To adjust the TV's luminosity, you should adjust the OLED Light setting depending on your specific viewing conditions. Changing this setting does not have any impact on the overall picture quality. The Brightness setting adjusts the image itself, and not the TV's luminosity. We usually recommend leaving this at '50'.

In the Expert Controls tab, we left Dynamic Contrast and Super Resolution off for most of our testing. We left the Color Gamut set to 'Auto', so this TV will choose the proper color gamut depending on the content. We set the Gamma to 2.2, as that is our target gamma. We chose the 'Warm 2' Color Temperature, which was the default for some picture modes.

HDR is automatically enabled for the native apps. Once you start playing HDR content, some of the settings change automatically, including OLED Light, which increases to '100.' We recommend leaving these settings to their default settings in HDR and using the 'Cinema HDR' Picture Mode.

For HDR to work from external devices, the Ultra HD Deep Color option usually has to be enabled from the 'Additional Settings' menu for the input you are using. Older devices may have compatibility issues if this option is left enabled, so it is recommended to only enable this setting for devices that require it.

This TV supports Dolby Vision, from native apps and with most external devices. As with normal HDR content, when you start playing Dolby Vision content, some settings change automatically. We recommend leaving these settings as-is, do not copy our SDR settings over. We recommend the 'Cinema' Picture Mode, but if you find the image too dim, try 'Cinema Home'. With 'Cinema Home', we noticed some issues in dark scenes, including raised black levels, and a bright flash in some scene transitions.

If you find HDR content too dim, there are a few things you can try. Enable Dynamic Tone Mapping and set Dynamic Contrast to 'Medium', which makes the screen brighter than setting it on 'High. Changing these settings makes the screen brighter, as you can see in this EOTF.

Although we disable most motion enhancing functions for most of our tests, you should adjust these to whatever looks best for you. Some settings, like motion interpolation settings, may need to be adjusted depending on the specific content you are watching.

Although we usually leave these settings disabled during testing, you should adjust these settings to your liking, as different people prefer different levels of motion interpolation. If you want to enable motion interpolation, set TruMotion to 'User', and adjust the De-Blur and De-Judder sliders. Setting De-Judder to '10' interpolates 30fps up to 60fps, and setting De-Blur to '10' interpolates 60fps up to 120fps.

The OLED Motion setting enables this TV's Black Frame Insertion (BFI) feature. Setting OLED Motion to 'High' makes the TV flicker at 60Hz for 60fps content, but setting it on 'Low', 'Medium', or 'Auto', causes the TV to flicker at 120Hz, which is good for 120fps content.

This TV can remove judder from all sources. To do so, simply enable the Real Cinema setting from the 'Picture Mode Settings' menu.

From the base SDR and HDR settings, very few changes are required for a great gaming experience. This TV supports Auto Low Latency Mode, which is enabled by enabling Instant Game Response from the 'Additional Settings' menu. Once this setting is enabled for the input you are using, this TV should automatically switch to the 'Game' Picture Mode when it detects a game is being played, and switch out of it when you stop playing.

For HDR Gaming, it is recommended to enable Ultra HD Deep Color for the port you are using, otherwise, you might have some issues. If Instant Game Response is enabled, the TV should do this automatically.

This TV supports variable refresh rate technologies to reduce screen tearing. For G-SYNC and HDMI Forum VRR to work, simply enable Instant Game Response and make sure the TV is in 'Game' mode. For FreeSync to work, select the AMD FreeSync Premium Mode for the input you're using.

For an optimal PC gaming experience and proper chroma 4:4:4 support, it is important to set the input label to 'PC' for the HDMI port you are using. Once you have set the label, it is recommended to reapply our base SDR or HDR settings, as the picture modes change when you set the label. This can be done from the new 'Home Dashboard' menu. Depending on the format you are sending, it might also be necessary to enable the Ultra HD Deep Color setting for the port you are using.

Although we don't expect this to be an issue for most people, burn-in is a possibility on this TV. There are a few options you should be aware of though, to ensure you get the most out of your new TV.

The Screen Shift setting, as the name describes, shifts the entire image a few pixels to one side, and gradually shifts it in a different direction over time. This helps reduce the effects of burn-in from very small elements, like fine lines in a game HUD. We recommend leaving this enabled, the screen shift is not very noticeable unless you are using the TV as a PC monitor.

Logo Luminance Adjustment automatically dims the area around a logo when it detects one on the screen. This can cause problems with some games, if the TV detects a UI element like a logo and dims it, so we recommend leaving it to 'Low'.

The Pixel Refresher menu allows you to manually run a complete pixel refresh cycle, which takes about an hour. This TV already runs a short pixel refresh automatically after every four hours of cumulative usage, once the TV is turned off, so you shouldn't worry about manually running this.