Display device including main and redundancy light emitting diodes
A display device includes a substrate on which a plurality of light emitting elements are disposed. A plurality of lines are disposed on an upper surface of the substrate. A plurality of upper pads are disposed on the upper surface of the substrate and electrically connected to the plurality of lines. A plurality of link lines are disposed on a lower surface of the substrate. A plurality of lower pads are disposed on the lower surface of the substrate and electrically connected to the plurality of link lines. A plurality of side lines electrically connect the plurality of upper pads and the plurality of lower pads. The plurality of side lines include a plurality of first side lines and a plurality of second side lines, and the plurality of first side lines and the plurality of second side lines are disposed on different layers.
1 . A display device, comprising:
a substrate having a plurality of pixels disposed thereon;
a plurality of light emitting elements disposed in each of the plurality of pixels;
a plurality of lines disposed on an upper surface of the substrate;
a plurality of link lines disposed on a lower surface of the substrate;
a plurality of side lines electrically connecting the plurality of lines and the plurality of link lines, and including a plurality of first side lines and a plurality of second side lines; and
a first insulating layer covering the plurality of first side lines and disposed between the plurality of first side lines and the plurality of second side lines,
wherein at least a portion of the plurality of first side lines and at least a portion of the plurality of second side lines overlap each other in a plan view,
wherein the plurality of light emitting elements include first LEDs and second LEDs,
wherein the first LEDs and the second LEDs are disposed in lines within each of the plurality of pixels,
wherein the first LEDs and the second LEDs are disposed adjacent to each other,
wherein the first LEDs are main LEDs and the second LEDs are redundancy LEDs,
wherein the light emitting elements emits at least two colors, and
wherein the main LEDs and the redundancy LEDs emit the same color.
2 . The display device of claim 1 , further comprising:
a second insulating layer disposed to cover the plurality of second side line,
wherein the first insulating layer and the second insulating layer include a black material.
3 . The display device of claim 1 , further comprising:
a plurality of upper pads disposed on the upper surface of the substrate and electrically connected to the plurality of lines; and
a plurality of lower pads disposed on the lower surface of the substrate and electrically connected to the plurality of link lines,
wherein the side lines are electrically connected to the plurality of lines through the plurality of upper pads,
wherein the side lines are electrically connected to the plurality of link lines through the plurality of lower pads,
wherein the plurality of upper pads includes a plurality of first upper pads electrically connected to the plurality of first side lines and a plurality of second upper pads electrically connected to the plurality of second side lines,
wherein the plurality of lower pads includes a plurality of first lower pads electrically connected to the plurality of first side lines and a plurality of second lower pads electrically connected to the plurality of second side lines.
4 . The display device of claim 3 , wherein the plurality of second upper pads are disposed closer to a center of the substrate than the plurality of first upper pads, and
the plurality of second lower pads are disposed closer to the center of the substrate than the plurality of first lower pads.
5 . The display device of claim 4 , wherein the plurality of second side lines overlap the plurality of second upper pads and the plurality of second lower pads.
6 . The display device of claim 4 , wherein the plurality of first upper pads and the plurality of second upper pads are disposed in a zigzag shape, and
the plurality of first lower pads and the plurality of second lower pads are disposed in a zigzag shape.
7 . The display device of claim 3 , wherein the plurality of first upper pads and the plurality of second upper pads are disposed on a same layer,
wherein lines extending from the plurality of first upper pads and lines extending from the plurality of second upper pads among the plurality of lines are disposed on a same layer.
8 . The display device of claim 3 , wherein a width of each of the plurality of second upper pads is greater than a width of each of the plurality of first upper pads,
wherein lines electrically connected to the plurality of second upper pads among the plurality of lines are power supply lines.
9 . The display device of claim 1 , further comprising:
a sealing member covering the plurality of second side lines; and
a first cover layer disposed on the substrate and in contact with the sealing member.
10 . The display device of claim 9 , wherein a side surface of the sealing member includes a first surface positioned on a same plane as a side surface of the first cover layer and a second surface extending from the first surface and having an inclined shape.
11 . The display device of claim 10 , further comprising:
a plurality of lower pads disposed on the lower surface of the substrate and electrically connected to the plurality of link lines,
wherein the sealing member covers the plurality of lower pads.
12 . The display device of claim 9 , further comprising:
a second cover layer disposed under the substrate and on a lower portion of the sealing member,
wherein a side surface of the first cover layer, a side surface of the sealing member, and a side surface of the second cover layer are disposed on a same plane.
13 . A display device, comprising:
a substrate having a plurality of pixels disposed thereon;
a plurality of light emitting elements disposed in each of the plurality of pixels;
a plurality of first lines and a plurality of second lines disposed on an upper surface of the substrate;
a plurality of first upper pads and a plurality of second upper pads disposed on the upper surface of the substrate and electrically connected to the plurality of first lines and the plurality of second lines;
a plurality of first link lines and a plurality of second link lines disposed on a lower surface of the substrate;
a plurality of first lower pads and a plurality of second lower pads disposed on the lower surface of the substrate and electrically connected to the plurality of first link lines and the plurality of second link lines;
a plurality of first side lines electrically connecting the plurality of first upper pads and the plurality of first lower pads;
a plurality of second side lines electrically connecting the plurality of second upper pads and the plurality of second lower pads; and
a first insulating layer covering the plurality of first side lines and disposed between the plurality of first side lines and the plurality of second side lines,
wherein the plurality of light emitting elements include first LEDs and second LEDs,
wherein the first LEDs and the second LEDs are disposed in lines within each of the plurality of pixels,
wherein the first LEDs and the second LEDs are disposed adjacent to each other,
wherein the first LEDs are main LEDs and the second LEDs are redundancy LEDs, and
wherein at least a portion of the plurality of first side lines and at least a portion of the plurality of second side lines overlap each other in a plan view, and
wherein the plurality of light emitting elements emit at least two colors.
14 . The display device of claim 13 , wherein the plurality of first side lines are disposed between the plurality of second side lines.
15 . The display device of claim 13 , wherein the plurality of first upper pads are disposed closer to an outer portion of the substrate than the plurality of second upper pads, and
the plurality of first lower pads are disposed closer to the outer portion of the substrate than the plurality of second lower pads.
16 . The display device of claim 15 , wherein the plurality of first upper pads and the plurality of second upper pads are alternately disposed on the substrate, and
the plurality of first lower pads and the plurality of second lower pads are alternately disposed on the substrate.
17 . The display device of claim 13 , wherein a width of each of the plurality of second side lines is greater than a width of each of the plurality of first side lines, and
the plurality of second side lines are electrically connected to power supply lines.
18 . The display device of claim 13 , further comprising:
a second insulating layer covering the plurality of second side lines;
a sealing member disposed on the second insulating layer; and
a first cover layer disposed on the plurality of light emitting elements and the sealing member.
19 . The display device of claim 18 , wherein the sealing member covers the plurality of first lower pads and the plurality of second lower pads.
20 . The display device of claim 18 , further comprising:
a second cover layer disposed under the plurality of first lower pads and the plurality of second lower pads and contacting the sealing member.
21 . The display device of claim 13 , wherein the plurality of first lines, the plurality of second lines, the plurality of first upper pads and a plurality of second upper pads are formed of a same material and disposed on a same layer.
22 . The display device of claim 21 , wherein the plurality of first lines and the plurality of first upper pads are formed integrally, and the plurality of second lines and the plurality of second upper pads are formed integrally.
23 . An electronic device, comprising:
a substrate having a plurality of pixels disposed thereon;
a plurality of light emitting elements disposed in each of the plurality of pixels;
a plurality of lines disposed on an upper surface of the substrate;
a plurality of link lines disposed on a lower surface of the substrate;
a plurality of side lines electrically connecting the plurality of lines and the plurality of link lines, the plurality of side lines including a plurality of first side lines and a plurality of second side lines; and
a first insulating layer covering the plurality of first side lines and disposed between the plurality of first side lines and the plurality of second side lines,
wherein at least a portion of the plurality of first side lines and at least a portion of the plurality of second side lines overlap each other in a plan view,
wherein the plurality of light emitting elements include first LEDs and second LEDs,
wherein the first LEDs and the second LEDs are disposed in lines within each of the plurality of pixels,
wherein the first LEDs and the second LEDs are disposed adjacent to each other,
wherein the first LEDs are main LEDs and the second LEDs are redundancy LEDs,
wherein the plurality of light emitting elements emit at least two colors, and
wherein the main LEDs and the redundancy LEDs emit the same color.