Nokia's ClearBlack Display technology explained

3

Nokia announced ClearBlack Display a couple of years ago and the technology has been a headline feature of its recent Lumia models. The manufacturer says ClearBlack gives deeper blacks and better viewing angles, and recently published a graphic detailing how it works.

The technology involves a pair of filters which help to reduce the amount of ambient light that the screen reflects. The filters polarize the light, changing its direction before it reflects off the screen behind. When the light travels back it is unable to pass through the filter and is blocked. We noted in our Lumia 800 review that "you'll struggle to distinguish where the display panel ends" and it's by preventing the ambient light from escaping the screen that Nokia achieves that effect. The light produced from the display itself, having not passed through a polarizing filter, is able to escape without being affected. You can find a step-by-step breakdown of the process over on the Nokia Conversations site.

Back to top ^
X
Log In Sign Up

forgot?
Log In Sign Up

Please choose a new Verge username and password

As part of the new Verge launch, prior users will need to choose a permanent username, along with a new password.

Your username will be used to login to Verge going forward.

I already have a Vox Media account!

Verify Vox Media account

Please login to your Vox Media account. This account will be linked to your previously existing Eater account.

Please choose a new Verge username and password

As part of the new Verge launch, prior MT authors will need to choose a new username and password.

Your username will be used to login to Verge going forward.

Forgot password?

We'll email you a reset link.

If you signed up using a 3rd party account like Facebook or Twitter, please login with it instead.

Forgot password?

Try another email?

Almost done,

By becoming a registered user, you are also agreeing to our Terms and confirming that you have read our Privacy Policy.
Spinner.vc97ec6e

Authenticating

Great!

Choose an available username to complete sign up.

In order to provide our users with a better overall experience, we ask for more information from Facebook when using it to login so that we can learn more about our audience and provide you with the best possible experience. We do not store specific user data and the sharing of it is not required to login with Facebook.

tracking_pixel_5345_tracker