Patent ID: 8729534
Filing Date: 2014-05-20
Classification: H01L,H05B

Abstract:
1. An organic EL display panel comprising: a substrate; and a matrix of multiple sub-pixels disposed on the substrate, wherein: the sub-pixels include a sub-pixel R configured to emit red light, a sub-pixel G configured to emit green light, and a sub-pixel B configured to emit blue light; each of the sub-pixels R, G, and B has a pixel electrode disposed on the substrate, a hole injection layer made of metal oxide and disposed on the pixel electrode, an organic emitting layer formed on the hole injection layer by coating, a counter electrode disposed on the organic emitting layer, and a bank for defining a space in which the organic emitting layer is formed and covering an edge of the hole injection layer in contact with an edge of an upper surface of the hole injection layer; the sub-pixels R, G, and B include a sub-pixel X disposed at least in part of an edge of the substrate, and a sub-pixel Y disposed at a center of the substrate and configured to emit the same color of light as the sub-pixel X; a volume of the organic emitting layer in the sub-pixel X is larger than a volume of the organic emitting layer in the sub-pixel Y; a size of the space defined by the bank of the sub-pixel X and a size of the space defined by the bank of the sub-pixel Y are the same, and a thickness of the organic emitting layer of the sub-pixel X and a thickness of the organic emitting layer of the sub-pixel Y are the same.