Luminous display element

Details Luminous display element Luminous display element

2005-05-24

2005-05-24

Ben, Loha (Department: 2873)

Optical: systems and elements

Single channel simultaneously to or from plural channels

By surface composed of lenticular elements

C359S529000, C359S263000, C359S836000, C385S018000, C313S110000, C313S113000, C313S504000, C313S506000, C349S063000, C349S069000, C349S106000, C428S690000, C257S072000, C204S192150

Reexamination Certificate

active

06898018

ABSTRACT:
In a luminous display element, a retro-reflector is provided on the back side of an organic EL layer which includes an emission layer whose state changes between an emission state and a non-emission state. The retro-reflector includes a corner cube array, and reflects incident light in the same direction as an incident direction. A unit structure of the corner cube array is a form of a triangular pyramid which is made up of rectangular equilateral triangles having three faces, and a light shielding process is performed on the periphery of a base angle of the rectangular equilateral triangle. Thus, it is possible to prevent an image from being reflected, so that it is possible to provide the luminous display element whose contrast ratio and the utilization efficiency of emission are high.

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