When you’re adjusting these settings, it’s important to understand that backlight and brightness are different things. On LED screens, the backlight setting alters the brightness of the light behind the TV screen’s pixels, brightness changes how much of the backlight gets through.
If you have an OLED TV, it’s the pixels themselves that generate the light, so it won’t have a backlight setting at all.
Adjusting the backlight settings is about balancing how bright the screen is, compared to the room and your personal preference. If your room is usually quite dark when you’re watching TV, you’ll want the backlight set relatively low. If it’s a bright room with lots of natural light, you’ll want it set quite high.
As we mentioned earlier, the brightness controls how much backlight the TV lets through. When you see the test pattern, adjust the backlight on your TV to suit the brightness of your room. The ‘below black’ lines on the outside edge of the test pattern should be barely visible. ‘Below black’ means the image is blacker than the TV can show. If you can see it, you’ll be able to see detail in the darkest shadows of an image. If not, you might miss details in darker areas of the picture.
If the below black line never appears, don’t worry, some TV’s won’t display it. Just make sure the innermost line is barely visible instead.
We’ve made a video called 'Black Dog' to help you check the brightness, you'll find it in the ‘Demo Videos’ section of the DVD menu. It works in the same way as the standard pattern, and the moving image of the dog will help you get the setting just right for you.
If you've got an issue with any of your kit, our experts are on-call to help 24/7 - in-store, at home, or over the phone.More info
When your kit's fully broken, you need it fixed fast. Our accredited experts will get you back up and running in no time.More info