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US 12,765,173 B2Granted
Light emitting display apparatus
AssigneeLG Display Co., Ltd.
InventorsSeokho Shim, Yuseok Jung
Life of this patent
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Abstract
A light emitting display apparatus includes a base substrate, a buffer provided in the base substrate, a pixel driving circuit layer provided on the buffer, the pixel driving circuit layer including transistors, a first planarization layer surrounding the pixel driving circuit layer, a hydrogen collection layer surrounding the first planarization layer, a second planarization layer covering the hydrogen collection layer, a light emitting device provided on the second planarization layer and connected to a driving transistor of the transistors, and an encapsulation layer covering the light emitting device.
Claims20
A light emitting display apparatus, comprising:
- a base substrate;
- a buffer provided on the base substrate;
- a pixel driving circuit layer on the buffer, the pixel driving circuit layer including a driving transistor;
- a first planarization layer on the pixel driving circuit layer, the first planarization layer including an upper surface and a lateral surface;
- a hydrogen collection layer on the upper surface and the lateral surface of the first planarization layer;
- a second planarization layer on the hydrogen collection layer;
- a light emitting device provided on the second planarization layer and connected to the driving transistor;
- and
- an encapsulation layer on the light emitting device,
- wherein the hydrogen collection layer is included in each of a plurality of pixels and the plurality of pixels are provided in the base substrate,
- a plurality of first planarization layers are apart from each other and each of the plurality of first planarization layers is included in one pixel,
- a plurality of hydrogen collection layers are apart from each other and each of the plurality of hydrogen collection layers is included in one pixel,
- the hydrogen collection layer included in a pixel surrounds a pixel driving circuit layer of the pixel, and
- wherein the hydrogen collection layer contacts with an upper surface and a lateral surface of the first planarization layer.
11 more elements
A light emitting display apparatus, comprising:
- a substrate;
- a pixel driving circuit layer on the substrate, the pixel driving circuit layer including a driving transistor;
- a first dielectric layer on the pixel driving circuit layer and surrounding the pixel driving layer in a lateral direction;
- a conductive hydrogen collection layer on the first dielectric layer and surrounding the dielectric layer in the lateral direction;
- a first planarization layer on the conductive hydrogen collection layer;
- and
- a light emitting element on the first planarization layer,
- wherein the hydrogen collection layer is included in each of a plurality of pixels and the plurality of pixels are provided in the substrate,
- a plurality of first planarization layers are apart from each other and each of the plurality of first planarization layers is included in one pixel,
- a plurality of hydrogen collection layers are apart from each other and each of the plurality of hydrogen collection layers is included in one pixel,
- the hydrogen collection layer included in a pixel surrounds a pixel driving circuit layer of the pixel, and
- wherein the hydrogen collection layer contacts with an upper surface and a lateral surface of the first planarization layer.
9 more elements
A light emitting display apparatus, comprising:
- a substrate;
- a pixel driving circuit layer on the substrate, the pixel driving circuit layer including a driving transistor;
- a first dielectric layer on the pixel driving circuit layer, the first dielectric layer including a contact hole that reaches a terminal of the driving transistor;
- a conductive hydrogen collection layer on the first dielectric layer, the conductive hydrogen collection layer extending in the contact hole and in contact with the terminal of the driving transistor through the contact hole;
- a first planarization layer on the conductive hydrogen collection layer;
- and
- a light emitting element on the first planarization layer,
- wherein the hydrogen collection layer is included in each of a plurality of pixels and the plurality of pixels are provided in the substrate,
- a plurality of first planarization layers are apart from each other and each of the plurality of the first planarization layers is included in one pixel,
- a plurality of hydrogen collection layers are apart from each other and each of the plurality of hydrogen collection layers is included in one pixel,
- the hydrogen collection layer included in a pixel surrounds a pixel driving circuit layer of the pixel, and
- wherein the hydrogen collection layer contacts with an upper surface and a lateral surface of the first planarization layer.
9 more elements
Dependencies are inferred from the claim text.