The thickness of the anti-reflection pattern is set to a value by which an adsorbing ratio of a light having a predetermined wavelengh and adsorbed in the light adsorbing layer is maximized.

• 该抗反射图样的厚度被设为这样一个值，利用该值，在光吸收层中吸收的具有预定波长的光的吸收比得以最大化。