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US 10,707,278 B2Granted
Backplane substrate and flexible display using the same
AssigneeLG Display Co., Ltd.
InventorWon-Jin Choi
Life of this patent
Estimating the term…
Abstract
Disclosed are a backplane substrate, which achieves improved interface bonding characteristics via a recess configuration at the interface of an organic layer with an inorganic layer, thereby preventing peeling due to repeated folding, and a flexible display using the same. An organic layer is introduced into a recess provided in an inorganic layer so as to achieve improved interface bonding characteristics.
Claims17
A backplane substrate, comprising:
- a base substrate having an active area including a plurality of sub-pixels and a dummy pixel portion including a plurality of dummy pixels along an edge of the active area;
- an inorganic layer stack at least at the location of the dummy pixels, the inorganic layer stack including:
- a plurality of adhesion recesses;
- a first wire and a second wire located outside the plurality of adhesion recesses, the first and second wires disposed in different layers of the inorganic layer stack to overlap each other;
- a first interlayer insulation layer located between the first and second wires;
- a third wire located on an upper side of the second wire so as to overlap the second wire;
- and
- a second interlayer insulation layer between the second wire and the third wire;
- and
- an organic layer in contact with the inorganic layer stack and disposed to overlay the inorganic layer stack at a location of both of the dummy pixels and the plurality of sub-pixels, wherein a portion of the organic layer is inserted in the adhesion recesses.
7 more elements
A flexible display, comprising:
- a first flexible base substrate in which an active area having a plurality of sub-pixels is defined in a center thereof and a dummy pixel portion having dummy pixels is defined along an edge of the active area;
- a second flexible base substrate configured to be opposite the first flexible base substrate and having a touch wire;
- an adhesive layer provided between the first and second flexible base substrates;
- an inorganic layer stack at least at the location of the dummy pixels, the inorganic layer stack including:
- a plurality of adhesion recesses;
- a first wire and a second wire located outside the plurality of adhesion recesses, the first and second wires disposed in different layers of the inorganic layer stack to overlap each other;
- a first interlayer insulation layer located between the first and second wires;
- a third wire located on an upper side of the second wire so as to overlap the second wire;
- and
- a second interlayer insulation layer between the second wire and the third wire;
- and
- an organic layer in contact with the inorganic layer stack and disposed to overlay the inorganic layer stack at a location of both of the dummy pixels and the plurality of sub-pixels, wherein a portion of the organic layer is inserted in the adhesion recesses.
9 more elements
Dependencies are inferred from the claim text.