Self-emitting element, display panel, display apparatus, and method of manufacturing self-emitting element
View Patent ↗A display panel includes a light-emitting layer, a protective layer, a reflective layer, and a reflective surface. The protective layer is deposited on an emitting side of the light-emitting layer and forms an interface with an external medium. The protective layer has a thickness that allows the light emitted from the light-emitting layer to undergo total reflection at least once at the interface in an area of the light-emitting layer. The reflective layer is deposited on an opposite side of the protective layer with respect to the light-emitting layer. The reflective surface is at a periphery of the light-emitting layer and changes the direction of the light propagating inside the protective layer emitted from the light-emitting layer.
1. A light-emitting element comprising:
a substrate having a first surface;
a bank above the first surface of the substrate;
a display layer disposed surrounding the bank, the display layer including a light-emitting layer;
a protective layer disposed above the display layer, the protective layer having a second surface facing away from the display layer;
a protrusion disposed on the bank, a width of the protrusion near the bank being larger than a width of the protrusion near a tip of the protrusion;
a reflecting film disposed on an inclined surface of the protrusion;
the first surface being separated from the second surface by a first distance that is smaller than a second distance separating the first surface from the tip of the protrusion.
2. The light-emitting element according to claim 1 , the display layer including:
a first electrode layer;
a second electrode disposed farther from the substrate than the first electrode; and
a light-emitting layer disposed between the first electrode and the second electrode.
3. The light-emitting element according to claim 1 , the first electrode being a reflective layer having a function to reflect a part of light emitted from the light emitting layer.
4. The light-emitting element according to claim 1 , a reflective index of the protective layer being larger than a reflective index of the light-emitting layer.
5. The light-emitting element according to claim 1 , the protrusion being formed by an insulating material.
6. A display panel being formed by disposing the plurality of light-emitting element in a two dimensional in matrix according to claim 1 .
7. A display panel being formed by disposing the plurality of light-emitting element in a two dimensional in matrix according to claim 2 .
8. A display panel being formed by disposing the plurality of light-emitting element in a two dimensional in matrix according to claim 3 .
9. A display panel being formed by disposing the plurality of light-emitting element in a two dimensional in matrix according to claim 4 .
10. A display panel being formed by disposing the plurality of light-emitting element in a two dimensional in matrix according to claim 5 .