Tianma Micro-electronics Co., Ltd.

Hiromu Hanashima

Jun Tanaka

Each of sub-pixels includes an upper electrode layer, a lower electrode layer between the upper electrode layer and the substrate, an organic light-emitting layer between the lower electrode layer and the upper electrode layer, and an interlayer between the organic light-emitting layer and the lower electrode layer. The pixel defining layer is provided between the lower electrode layer and the interlayer. The convex structural part is provided between the substrate and the interlayer. The convex structural part has a third side wall on the side of the first sub-pixel and a fourth side wall on the side of the second sub-pixel. The first side wall, the second side wall, the third side wall, and the fourth side wall have forward tapered surfaces.

Growing community of inventors

Kawasaki, Japan

Hiromu Hanashima