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LG TV - Picture Quality and Optimization

  • Troubleshooting

At a Glance

LG TVs deliver highly detailed video content in rich colors with smooth motion and elevated brightness. If the image quality you see on your LG TV is not as eye-catching as you expected, there are some troubleshooting steps you can take to resolve the issue.

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  1. Select Your TV Model:

    Pixelated TV Screen
    Picture Quality Adjustment
    Dim TV Screen
    Dark or Dim Picture
    Skewed Image on TV Screen
    Picture Size/Aspect Ratio
  2. Picture Quality Adjustment

    audio description button

    Note

    If the image is blocky, pixelated, or grainy, this may be caused by a poor connection, or lower quality content displayed on a UHD TV.

    If the picture quality drops while streaming, please visit our LG TV - Troubleshooting Premium Apps article.

    Let's perform a picture test:

    1Press the [Settings] button on your TV remote and select [All Settings] in the [Settings] menu.

    2Select [Support] → [Screen Self-Diagnosis].

    3Perform [Picture Test] to check the screen condition.

    1Press the [Settings] button on your TV remote and select [All Settings] in the [Settings] menu.

    2Select [Support] and then [Additional Settings].

    3Select [Picture Test] in [Additional Settings].

    4Perform [Picture Test] to check the screen condition.

    5Press Yes to display a screen comparing FHD and UHD.

    1Press the [Settings] button on your TV remote and select [All Settings] in the [Settings] menu.

    2Select [Picture] then [Picture Test.

    3Perform [Picture Test] to check the screen condition.

    Note

    Note: If a problem is found, service will be required for a proper diagnosis. Please visit our Request a Repair page for further assistance.

    If the picture looks fine, the next step is to perform an A/V reset.

    1. Press the [Mute] button 3 times in a row on your AI (Magic) or general (button-only) remote control to display the [Select functions you want to access] pop-up.
    2. Select [AV Reset] to initialize the picture and sound settings.

    ➔ Location of the Mute button

    Shape of the location of the mute button for each type of motion remote control
    ※ The location of the Mute button may differ by the model of AI (Magic) remote control.

    ➔ [AV Reset] menu in [2022 WebOS22] and [2021 WebOS 6.0]

    performing video and audio initialization in the menu
    ※ Please note that the details of the AV Reset menu may vary depending on the model.

    This guide was created for all models, so the images or content may be different from your product.

  3. Dark or Dim Picture

    Show Script

    [LG WebOS TVs] Troubleshooting A LG TV Screen That Is Too Dark or Blurry - WebOS 22

    How to fix when your TV screen is too dark or blurry

    Select the all settings icon and navigate to Picture Settings.

    Use Select Mode to choose the Vivid option to create more clarity and brightness.

    For more precise correction, return to the Picture Settings Menu and select Advanced Settings.

    Within Advanced Settings, select Brightness.

    There you can adjust the screen brightness to your preference.

    How to change Picture mode

    ➔ How to change Picture mode for [2022 WebOS 22] and [2021 WebOS 6.0]

    Press the Setting button button on the remote control and select [All Settings] → [Picture] → [Select Mode] → [Vivid].

    1. Turn on the TV and press the [Settings] button on the remote control.
    From [Settings], select [All Settings].

    Image that enters all settings by pressing the setting button on the remote control

    2. Select [Picture] → [Select Mode].

    3. Change to [Vivid] or adjust the brightness from the standard Picture setting.

    Image that selects vivid in mode selection

    ➔ How to change Picture mode for [2020 WebOS5.0] or before

    Press the Setting button button on the remote control and select [All Settings] → [Picture] → [Picture Mode Setting]

    1. Turn on the TV and press the [Settings] button on the remote control.
    From [Settings], select [All Settings].

    Image that enters all settings by pressing the setting button on the remote control

    2. From [Picture], select [Picture Mode Settings].

    Image to enter picture mode settings in picture mode

    3. While you change the [Picture Mode], check the Picture brightness.

    Image input picture mode as standard

    ※ It is necessary to set the desired picture mode every time there is a change in the input mode, as the picture mode settings (brightness/quality) may differ depending on the Picture input (digital broadcasting, HDMI, etc.).

    How to change the brightness on Advanced Custom Settings

    ➔ How to change on [2022 WebOS 22] and [2021 WebOS 6.0]

    Press the Setting button button on the remote and select [All Settings] → [Picture] → [Advanced Custom Settings] → [Brightness] → [OLED Pixel Brightness].

    ※ You can’t change the brightness if the setting is on [Auto Power Saving] Mode.

    1. Turn on the TV and press the [Settings] button on the remote control.
    From [Settings], select [All Settings].

    Image that enters all settings by pressing the setting button on the remote control

    2. Select [Picture] → [Advanced Settings].

    3. Select [Brightness].

    Image to select brightness

    4. Select [OLED Pixel Brightness].

    5. Use the remote control to adjust the brightness. The closer it is to 100, the brighter the Picture.

    An image that adjusts OLED pixel brightness

    ➔ How to change in [2020 WebOS5.0] or before

    Press the Setting button button on the remote control and select [All Settings] → [Picture] → [Picture Mode Setting]

    1. Turn on the TV and press the [Settings] button on the remote control.
    From [Settings], select [All Settings].

    Image that enters all settings by pressing the setting button on the remote control

    2. From [Picture], select [Picture Mode Settings].

    3. You can adjust the brightness separately in [Picture Mode Setting].

    Image to adjust brightness in picture mode

    ※ It is necessary to set the desired picture mode every time there is a change in the input mode, as the picture mode settings (brightness/quality) may differ depending on the Picture input (digital broadcasting, HDMI, etc.).

    When only part of the Picture appears black and white or dark
    This symptom is not because TV is a defect, but rather because fighting channels (i.e. UFC channel), frequently show scenes that are graphic or have excessive bleeding. To overcome the reluctance to watch, the area is therefore handled in black and white.
    The same logic applies to some channels where scenes show up in mosaic patterns.

    This guide was created for all models, so the images or content may be different from your product.

    If problems continue, service will be required for further assistance. Please visit our Request a Repair page for further assistance.

  4. Picture Aspect Ratio

    Change the screen size to ensure the Picture you are watching is the right ratio.

    Open the TV Settings menu and select as instructed below.


    ➔ Method for changing screen size on [2021 WebOS6.0] or later versions

    Press the Setting button button on the remote control and select [All Settings] → [Picture] → [Aspect Ratio] → [User Selection].

    1. Turn on the TV and press the [Settings] button on the remote control.
    From [Settings], select [All Settings].

    Image that enters all settings by pressing the setting button on the remote control

    2. Select [Aspect Ratio] under [Picture].

    3. Change the [Aspect Ratio] in [User Selection].

    Images whose proportions are changed in the user selection menu

    ➔ How to resize the screen in [2020 WebOS 5.0] or before

    Press the Setting button button on the remote control and select [All Settings] → [Picture] → [Aspect Ratio Settings] → [Aspect Ratio].

    1. Turn on the TV and press the [Settings] button on the remote control. From [Settings], select [All Settings].

    Image that enters all settings by pressing the setting button on the remote control

    2. Select [Picture] and then [Aspect Ratio Setting].

    3. Under [Aspect Ratio], change the Screen Size.

    Image setting the Aspect Ratio to the right ratio

    This guide was created for all models, so the images or content may be different from your product.

    If problems continue, service will be required for further assistance. Please visit our Request a Repair page for further assistance.

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