Lighting device
AssigneeLG Display Co., Ltd.
InventorsSungwook KO, Chiwan KIM
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Abstract
A lighting device includes a substrate including a display area and a non-display area and an organic light emitting layer disposed in the display area. A first electrode is disposed on the organic light emitting layer and a second electrode is disposed below the organic light emitting layer. A phase change material layer is disposed below the second electrode and a plurality of third electrodes is disposed between the substrate and the phase change material layer. Therefore, a pattern having various colors of light and various shapes may be implemented based on a shape of the plurality of third electrodes, a phase change of the phase change material layer, and a color of light emitted from the organic light emitting layer.
Claims20
A lighting device, comprising:
- a substrate including a display area and a non-display area;
- an organic light emitting layer disposed in the display area;
- a first electrode disposed on the organic light emitting layer and a second electrode disposed below the organic light emitting layer;
- a phase change material layer disposed below the second electrode;
- and
- a plurality of third electrodes disposed between the substrate and the phase change material layer.
A lighting device, comprising:
- a substrate including a display area and a non-display area;
- a plurality of third electrodes disposed on the substrate;
- a plurality of phase change material layers disposed on the plurality of third electrodes, the plurality of phase change material layers spaced apart from each other;
- a second electrode disposed on the plurality of phase change material layers;
- an organic light emitting layer disposed on the second electrode;
- and
- a first electrode disposed on the organic light emitting layer.
A lighting device, comprising:
- a substrate including a display area and a non-display area;
- a plurality of third electrodes on the substrate;
- at least one phase change material layer on the plurality of third electrodes;
- a second electrode on the at least one phase change material layer;
- an organic light emitting layer on the second electrode;
- and
- a first electrode on the organic light emitting layer.
Dependencies are inferred from the claim text.