Side-Chain Polyimides as Binder Polymers for Photolithographic Patterning of a Black Pixel Define Layer for Organic Light Emitting Diode

Figure 8

The optical microscopic images of black PDL patterns obtained with (a) PT-0, (b) PT-1, (c) PT-2, and (d) PT-3 black photoresists.

(a)

(b)

(c)

(d)