We used the following calibration settings to review the LG 55 inch C1 (OLED55C1), and we expect them to be valid for the 48 inch model (OLED48C1), 65 inch model (OLED65C1), the 77 inch model (OLED77C1), and the 83 inch model (OLED83C1). These settings should apply to most types of content, except for gaming or use as a PC monitor, which require a few additional changes, listed below.
One of the first things we did was disable all of the power saving and automatic image modes, as we don't want the TV to adjust the image during testing. For the C1, we disabled the Energy Saving and AI Service settings, and we also disabled Motion Eye Care in the Picture menu. You should adjust these settings to your preference.
For SDR content, there are nine preset picture modes. We recommend choosing the 'Expert (Dark space, night)' picture mode, as it's the most accurate out of the box and allows for the most customization. If you watch in a brighter room, 'Expert (Bright space, daytime)' is almost as accurate.
From the 'Brightness' tab, we recommend setting the Contrast to '85' and Peak Brightness to 'High'. We also left Auto Dynamic Contrast disabled for most of our testing. From the 'Color' tab, we left Color Depth at '50' and Tint at '0'. We also left the Color Gamut set to 'Auto Detect', so the C1 will choose the proper color gamut depending on the content. We set the Gamma to 2.2, as that is our target gamma. Finally, from the 'Clarity' tab, we left Sharpness at '0'. For most of our testing, we also kept Super Resolution, Noise Reduction, and Smooth Gradation settings disabled, but you should adjust these to your preference.
To adjust the TV's luminosity, you should adjust the OLED Pixel Brightness setting depending on your specific viewing conditions. Changing this setting does not have any impact on the overall picture quality. The Screen Brightness setting adjusts the image itself and not the TV's luminosity. We usually recommend leaving this at '50'.
HDR is automatically enabled for native apps. Once you start playing HDR content, some of the settings change automatically, including OLED Pixel Brightness. We recommend leaving these settings to their default settings in HDR.
For HDR to work from external devices, the HDMI Deep Color option usually has to be enabled from the 'HDMI 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.
If you find HDR too dim, you can try enabling Auto Dynamic Contrast or Dynamic Tone Mapping. These settings can help produce a brighter image but are also highly dependent on the content.
The LG C1 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 there's also the new 'Filmmaker Mode' that optimizes the content as the filmmaker intended. If you find 'Cinema' too dark, try switching to 'Cinema Home' instead.
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 Selection' and adjust the De-Blur and De-Judder sliders.
The OLED Motion Pro setting enables the TV's black frame insertion (BFI) feature. Setting it to 'High' activates the BFI feature at 60 Hz, which may bother some people. When set to 'High', there will always be judder with 24p content. 'Low' or 'Medium' set the BFI to 120Hz.
The LG C1 is able to remove judder from all sources. To do so, enable the Cinema Screen setting from the 'Clarity' tab in the advanced picture settings menu. Note that with OLED Motion Pro at 'High', there will always be 24p judder, even with Cinema Screen enabled.
From the base SDR and HDR settings, very few changes are required for a great gaming experience. When you enable the new Game Optimizer from the 'General' settings tab, the C1 automatically enables all game-related settings and should switch to the 'Game Optimizer' Picture Mode for low latency.
For HDR gaming, we recommend enabling HDMI 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.
The LG C1 can also optimize the image to the genre of game you're playing. The Game Genre sub-menu includes four different presets that automatically adjust the Black Stabilizer and White Stabilizer to suit the type of game. 'FPS (First Person Shooter), for instance, adjusts the picture so you can see more details in shadows and dark areas.
There's also a new Prevent Input Delay setting to get even lower input lag. Setting it to 'Boost' reduces the lag by about 3ms, but it's only effective at 60Hz.
For an optimal PC gaming experience and proper chroma 4:4:4 support, it's important to set the input icon to 'PC' for the HDMI port you are using. Once you've set the label, we recommend reapplying our base SDR or HDR settings, as the picture modes change when you set the label. This can be done from the 'Home Dashboard' menu. Depending on the format you are sending, it might also be necessary to enable HDMI Deep Color.
Although we don't expect this to be an issue for most people, burn-in is a possibility. There are a few options you should be aware of, though, to ensure you get the most out of your new TV.
The Screen Move setting, as the name describes, moves 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, as the screen shift is not very noticeable unless you're using the TV as a PC monitor.
Adjust Logo Brightness 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 as a logo and dims it, so we recommend setting it to 'Low'.
The Pixel Cleaning menu allows you to run a complete pixel refresh cycle, which takes about an hour. You can set it to run a short pixel refresh automatically after every 4 hours of cumulative usage once the TV is turned off, or run it manually if you prefer.
The following are the results of the white balance and colorspace calibration on our unit. They are provided for reference, and should not be copied as the calibration values vary per individual unit even for the same model and same size as the TV we reviewed due to manufacturing tolerances. If you want to try them you will need to enter all values shown, as all of them are active at the same time. If you end up with worse picture quality, simply reset them to the default values.