Apple has started development of OLED screens without polarizer filters claims The Electric. Samsung Display has already applied this principle for its 2021 Galaxy Z Fold 3 with several benefits.
The film or polarizing filter is one of the layers forming the screen sandwich. It limits the reflection of outside light on the screen panel and increases the contrast to gain visibility. However, it is an obstacle between the screen and the user, which contributes to thickening the first and requires pushing the brightness for the comfort of use of the second.
By removing this thick opaque layer in favor of a thin color filter, we can reduce the lighting of the screen – it is less pressure on the battery – and obtain a thinner panel. In the case of Samsung, this makes it easier to fold the screen of the Fold.
Perhaps Apple intends to use this principle for a foldable iPhone. But there may be other avenues. Reducing energy expenditure is already an important advantage. Samsung Display explained in its press release that its technique consumed 25% less energy while improving the passage of light by 33%.
Then, this finesse is better suited to the placement of a front camera under the screen as offered by the Fold 3. If Apple ever plans to do without the notch completely, the TrueDepth sensors will have to work perfectly under the surface. glazed.