Patent ID: 7008807
Filing Date: 2006-03-07
Classification: G02F,H01L

Abstract:
1. A method for manufacturing an electro-optical device substrate, comprising: an exposure step of exposing a photosensitive resin disposed on a substrate using a mask pattern provided with a light transmitting portion and a light shading portion, the light transmitting portion further comprising light transmitting portions formed as a plurality of islands, the light transmitting portions being dispersed in the mask pattern, and the light shading portion being formed around the peripheries of the light transmitting portions such that a plurality of concave portions, which correspond to the light transmitting portions, are formed on the surface of the resin layer; a developing step of developing the exposed resin; and a reflective layer forming step of forming a reflection layer on the resin, wherein a size of at least one of the light transmitting portion and the light shading portion, and an exposure gap between the mask pattern and the resin are set so as to obtain an exposure intensity profile having an increasing and decreasing curve along a surface of the resin in the exposure step, such that, in the developing step, the resin is formed into a resin layer having surface irregularities in accordance with the exposure intensity profile; and an exposure wavelength λ in the exposure step is set in a range of 300 nm to 450 nm, a diameter of the light transmitting portions is set in a range of approximately 9 μm to 12 μm, and the exposure gap is set in a range of approximately 150 μm to 250 μm.