Display device and repairing method in the device
AssigneeLG Display Co., Ltd.
InventorsMoonsoo Kim, Sunwook Ko
Life of this patent
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Abstract
A display device and a repairing method in the method are disclosed. The display device includes a substrate; a plurality of sub-pixels formed on the substrate; and a data line and a common voltage line disposed on each sub-pixel. Each of the plurality of sub-pixels includes a thin-film transistor; a first and second light-emitting elements that are adjacent to each other and spaced from each other; a first electrode connecting the first light-emitting element and the second light-emitting element to the common voltage line; and a second electrode connecting the first light-emitting element and the second light-emitting element to a drain electrode of the thin-film transistor, wherein the drain electrode is connected to the data line.
Claims25
A display device comprising:
- a substrate;
- a plurality of sub-pixels on the substrate;
- and
- a data line and a common voltage line disposed on each of the plurality of sub-pixels, wherein at least one of the plurality of sub-pixels comprises:
- a thin-film transistor;
- a first light-emitting element;
- a second light-emitting element, wherein the second light-emitting element and the first light-emitting element are adjacent to each other and spaced from each other;
- a first electrode connecting the first light-emitting element and the second light-emitting element to the common voltage line;
- a second electrode connecting the first light-emitting element and the second light-emitting element to a drain electrode of the thin-film transistor, wherein the drain electrode is connected to the data line;
- and
- a reflective layer having a concave profile, wherein the first light-emitting element and the second light-emitting element are on the reflective layer.
A display device comprising:
- a substrate;
- a thin-film transistor on the substrate;
- an interlayer insulating film on the thin-film transistor;
- a reflective layer extending through the interlayer insulating film;
- a first insulating layer on the reflective layer;
- a first light-emitting element on the first insulating layer and in an area overlapping the reflective layer, the first light-emitting element including a first pad electrode and a second pad electrode;
- a second light-emitting element adjacent to and spaced from the first light-emitting element, on the first insulating layer, and in the area overlapping the reflective layer, the second light-emitting element including a first pad electrode and a second pad electrode;
- a first electrode connected to each of the first pad electrode of the first light-emitting element and the first pad electrode of the second light-emitting element, the first electrode extending through the first insulating layer so as to be connected to a common voltage line;
- and
- a second electrode connected to each of the second pad electrode of the first light-emitting element and the second pad electrode of the second light-emitting element, the second electrode extending through the first insulating layer so as to be connected to the thin-film transistor.
A repairing method in a display device, wherein the display device includes:
- a substrate;
- a plurality of sub-pixels formed on the substrate;
- and
- a data line and a common voltage line disposed on each of the plurality of sub-pixels, wherein at least one of the plurality of sub-pixels comprises:
- a thin-film transistor;
- a first light-emitting element;
- a second light-emitting element, wherein the second light-emitting element and the first light-emitting element are adjacent to each other and spaced from each other;
- a first electrode connecting the first light-emitting element and the second light-emitting element to the common voltage line;
- and
- a second electrode connecting the first light-emitting element and the second light-emitting element to a drain electrode of the thin-film transistor, wherein the drain electrode is connected to the data line,
- wherein the repairing method comprises:
- responsive to one of the first light-emitting element and the second light-emitting element included in a sub-pixel among the plurality of sub-pixels is a defective light-emitting element, supplying a current having a current amount that generates Joule-heat to the second electrode of the defective light-emitting element so as to break a portion of the second electrode connected to the defective light-emitting element, such that the other of the first light-emitting element and the second light-emitting element acts as a normal light-emitting element and is electrically connected to the data line via a non-broken portion of the second electrode.
Dependencies are inferred from the claim text.