Display device
AssigneeLG Display Co., Ltd.
InventorHyein PARK
Life of this patent
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Abstract
The present disclosure relates to a display device that includes a trench structure formed by removing a part of a planarization layer in a non-display area. The planarization layer includes a first planarization layer disposed in a display area and a second planarization layer disposed in the non-display area, with the trench structure located between them. The second planarization layer further includes a plurality of protrusions on its upper surface. By providing the trench structure and the protrusions, moisture or oxygen introduced from the outside can be more effectively managed, thereby reducing deterioration of the display device and improving reliability.
Claims16
A display device, comprising:
- a first substrate including a display area and a non-display area;
- a planarization layer disposed on the first substrate in the display area and the non-display area;
- an anode disposed on the planarization layer;
- an organic layer disposed on the anode;
- a cathode disposed on the organic layer;
- a protective layer disposed on the cathode;
- a second substrate disposed on the protective layer so as to face the first substrate;
- and
- an adhesive layer disposed on the protective layer and the second substrate and bonding the first substrate and the second substrate,
- wherein a trench structure is disposed in the non-display area, the trench structure being formed by removing a part of the planarization layer,
- wherein the planarization layer includes a first planarization layer disposed in the display area and a second planarization layer disposed in the non-display area,
- wherein the trench structure is disposed between the first planarization layer and the second planarization layer, and
- wherein the second planarization layer includes a plurality of protrusions on the upper surface of the second planarization layer.
Dependencies are inferred from the claim text.