In Rigid-OLED or early flexible OLED,
the general-purpose overcoat material used in TFT-LCD has beed used.
The Process application temperature of the general-purpose overcoat photosensitizer is 120 ~ 250℃,
and the life time of the OLED becomes a problem.
To protect the deposited organic device,
"Ultra-low temperature(80 ~ 100℃) process overcoat photosensitive material" was developed.
HP-LTOC is a material applied to the touch panel of OLED,
and is capable of curing at a low temperature of 80℃ and has a process time within 1 hour.