Displays

Not every touch interface needs a full coordinate-tracking panel—when interactions are limited to simple inputs, lighter solutions can be more efficient. By replacing ITO with copper electrodes on FPC, capacitive keys offer a simpler, more cost-effective, and flexible alternative while still delivering reliable touch functionality.

3M’s APF (Advanced Polarizing Film) is an on-glass reflective polarizer that recycles unused light within the backlight system, boosting brightness, improving energy efficiency, and enabling thinner LCD module designs. Compared to traditional DBEF solutions, APF stands out for its superior wide-angle performance, higher integration, and better suitability for thin, high-efficiency display applications.

Capacitive touch architecture mainly differs in electrode layout: SITO integrates Tx and Rx on one side with bridge structures, while DITO separates them on opposite sides to avoid routing conflicts. DITO simplifies design and reduces cost, whereas SITO offers more flexibility for global use but requires more complex processing.