OLED is an emerging display and lighting technology that can realize beautiful and efficient display and lighting panels. Polymer OLED (or PLED, also known as P-OLED) is an OLED device made of polymer materials. In terms of lifespan and efficiency, the material performance of PLED is not as good as SM-OLED, but easy to dissolve, so it is easily applicable to printing and other solution-based processes. Alfa Chemistry provides a variety of major chemical classes of LEPs, which prove their usefulness for PLED research, including polyphenylene vinylene and polyfluorene polymers.