Display apparatus using an organic layer which emits blue light without using a blue color filter
AssigneeLG Display Co., Ltd.
InventorHeumeil Baek
Life of this patent
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Abstract
A display apparatus includes a substrate including an emission area; a plurality of pixels disposed on the substrate in the emission area; a transistor in each of the plurality of pixels and an anode connected to the transistor; and an organic layer and a cathode on the anode, wherein the organic layer includes a first emission part, a charge generation layer on the first emission part, and a second emission part on the charge generation layer, wherein the first emission part emits light when a reverse driving is performed to the organic layer, and the second emission part emits light when a forward driving is performed to the organic layer.
Claims27
A display apparatus, comprising:
- a substrate including an emission area;
- a plurality of pixels disposed on the substrate in the emission area;
- a transistor in each of the plurality of pixels and an anode connected to the transistor;
- and
- an organic layer and a cathode on the anode,
- wherein the organic layer includes a first emission part, a charge generation layer on the first emission part, and a second emission part on the charge generation layer,
- wherein the first emission part emits light when a reverse driving is performed to the organic layer, and
- wherein the second emission part emits light when a forward driving is performed to the organic layer.
A display apparatus, comprising:
- a substrate including an emission area;
- a plurality of pixels disposed on the substrate in the emission area;
- a transistor in each of the plurality of pixels and an anode connected to the transistor;
- and
- an organic layer and a cathode on the anode,
- wherein the organic layer includes a first emission part, a second emission part, and a charge generation layer,
- the charge generation layer includes a first N type charge generation layer, a first P type charge generation layer, and a second N type charge generation layer,
- the first emission part includes a first light emitting layer, a first hole injection layer, and a first electron transport layer, and the second emission part includes a second light emitting layer, a second hole injection layer, and a second electron transport layer, and
- the first light emitting layer, the first hole injection layer, and the first electron transport layer and the second light emitting layer, the second hole injection layer, and the second electron transport layer are laminated to be symmetrical to each other with respect to the charge generation layer.
Dependencies are inferred from the claim text.