Display device, substrate for display device and method for repairing display device
A display including a base, a plurality of pixels disposed on the base in rows and columns, at least one of the pixels including a first interconnect and a plurality of second interconnects, and a plurality of mounting portions on which a plurality of sub-pixels is to be mounted, in which a first portion of each of the plurality of mounting portions is electrically connected to the first interconnect, a second portion of each of the plurality of mounting portions is electrically connected to one of the second interconnects, and at least one of the plurality of sub-pixels mounted on the plurality of mounting portions is configured to emit light of different wavelength.
1. A display, comprising:
a base;
a plurality of pixels disposed on the base in rows and columns, at least one of the pixels including a first interconnect and a plurality of second interconnects; and
a plurality of mounting portions on which a plurality of sub-pixels is to be mounted,
wherein:
a first portion of each of the plurality of mounting portions is electrically connected to the first interconnect;
a second portion of each of the plurality of mounting portions is electrically connected to one of the second interconnects; and
at least one of the plurality of sub-pixels mounted on the plurality of mounting portions is configured to emit light of different wavelength.
2. The display according to claim 1 , further comprising an interconnect extension disposed on the base and extending from the corresponding second interconnect,
wherein the mounting portions are disposed between the first interconnect and the interconnect extension.
3. The display according to claim 2 , wherein:
the interconnect extension includes a first interconnect extension extending in a first direction from the corresponding second interconnect and a second interconnect extension extending in a second direction from the corresponding second interconnect;
the mounting portions include a first mounting portion between the first interconnect extension and the first interconnect and a second mounting portion between the second interconnect extension and the first interconnect;
the second mounting portion is symmetrical to the first mounting portion with respect to the second interconnect; and
the second mounting portion is configured to mount a spare sub-pixel thereon.
4. The display according to claim 3 , wherein the first interconnect extension and the second interconnect extension protrude from the second interconnect.
5. The display according to claim 3 , wherein when the sub-pixel mounted on the first mounting portion is defective, the spare sub-pixel mounted on the second mounting portion is configured to replace the defective sub-pixel on the first mounting portion.
6. The display according to claim 3 , wherein:
the first interconnect extension protrudes from the second interconnect; and
the second interconnect extension is spaced apart from the second interconnect.
7. The display according to claim 6 , further comprising an interconnect connection connecting the second interconnect to the second interconnect extension.
8. The display according to claim 7 , wherein the interconnect connection comprises at least one of an indium tin oxide (ITO), a plating layer, and a bonding wire.
9. The display according to claim 7 , wherein when the sub-pixel mounted on the first mounting portion is defective, the defective sub-pixel mounted on the first mounting portion is configured to be electrically disconnected from the corresponding second interconnect.
10. The display according to claim 5 , wherein the spare sub-pixel mounted the second mounting portion is configured to emit light of the same wavelength as the sub-pixel mounted the first mounting portion adjacent to the second mounting portion.
11. The display according to claim 1 , wherein:
the sub-pixel includes a light emitting structure, a first electrode pad, and a second electrode pad;
the light emitting structure includes an n-type semiconductor layer, a p-type semiconductor layer, and an active layer disposed between the n-type semiconductor layer and the p-type semiconductor layer;
the first electrode pad and the second electrode pad are disposed on a lower surface or an upper surface of the light emitting structure; and
the first electrode pad is electrically connected to the n-type semiconductor layer, and the second electrode pad electrically connected to the p-type semiconductor layer.
12. The display according to claim 3 , further comprising an adhesive to couple the sub-pixel to the mounting portion.
13. The display according to claim 12 , wherein the adhesive comprises at least one selected from the group of AuSn, AgSn, Sn, InAu, and In.
14. The display according to claim 12 , wherein:
the adhesive includes a first adhesive to bond the sub-pixel to the first mounting portion and a second adhesive to bond the spare sub-pixel to the second mounting portion; and
the second adhesive has a lower melting point than the first adhesive.
15. The display according to claim 2 , wherein the mounting portion further includes a first substrate electrode electrically connected to the first interconnect and a second substrate electrode electrically connected to the interconnect extension.