DISPLAY ELEMENT, DISPLAY DEVICE, AND PROJECTION DISPLAY DEVICE

摘要

The present invention includes light valve section (10) having substrate (22) through which light that exits plurality of optical connection mechanisms (23) that switch between the transmitting state and the shading state of light emitted from light emitting element (25) transmits and plasmon coupling section (11) that is arranged in light valve section (10) and that causes plasmon coupling to occur with light that exits light emitting element (25). Plasmon coupling section (11) includes carrier generation layer (15) that generates carriers with light that exits light emitting element (25) and plasmon excitation layer (17) that has a higher plasma frequency than the frequency of light that is generated in carrier generation layer (15) excited with the light emitted from light emitting element (25). Wave number vector conversion layer (19) is arranged on substrate (22). Wave number vector conversion layer (19) converts the light or surface plasmons generated in plasmon excitation layer (17) into light having a predetermined exit angle. Plasmon excitation layer (17) is sandwiched between first dielectric constant layer (16) and second dielectric constant layer (18).