Self-illuminating element, display faceboard, method for producing display device and self-illuminating element

Abstract

The object of the present invention is to provide a display panel with high light extraction efficiency. The provided display panel has a plurality of self-luminous elements arranged in a two-dimensional matrix, and the self-luminous elements include: a display body layer, which Comprising a light-emitting element; and a transparent output layer, the layer is located in the emission direction of the above-mentioned display body layer, and has an angle conversion part that converts the propagation direction of the output light output from the above-mentioned light-emitting element to the above-mentioned emission direction; the refraction of the above-mentioned output layer The index is the same as or greater than the refractive index of the above-mentioned light-emitting element.

Description

[0001] Cross References to Related Applications [0002] This application enjoys the priority of the Japanese patent application No. 2002-365522 filed earlier on December 17, 2002 and the Japanese patent application No. 2003-049396 filed earlier on February 26, 2003. are all included. technical field [0003] The present invention relates to a self-luminous element such as organic electroluminescence (organic EL), a display panel, a display device, and a method for manufacturing the self-luminous element. Background technique [0004] In recent years, as self-luminous flat panel displays (FPDs), display panels using organic EL elements and displays using plasma display panels (PDPs) have been developed in large numbers. These display panels are constructed by disposing a light emitting layer between an anode layer and a cathode layer. In the display panel, the self-luminous element emits light by applying a voltage between the electrodes, and characters and images can be r...

AI Technical Summary

Problems solved by technology

However, if the refractive index of the transparent panel is increased, the difference in refractive index between it and the outside air will increase, and the critical angle of light output from the transparent panel to the outside will become smaller.

Therefore, even if only a transparent panel with a refractive index higher than that of the light-emitting element is used, the light extraction efficiency cannot be improved because the amount of light extracted to the outside does not increase.

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