For critical and premium applications
A circular polarizer provides perfect sunlight readability.
Simply put, through this filter, the light is "straightened" (on one side, the linearly polarized component is absorbed, and the circularly polarized one is transmitted, and vice versa). Such circular polarizing filters are the premium solution for perfect sunlight readability. In critical applications, this can be absolutely mandatory, for example in ship controls or in the military environment.
Easy-to-read touchscreens
Here it is absolutely essential that the touch control remains easy to read in any case and in any lighting.
In other cases, such as high-quality outdoor kiosk applications, however, this perfect appearance ensures intensive and enthusiastic use by the user even in sunlight and thus helps the touch system to achieve the desired success.