Display device having an undercut structure in a non-display area
AssigneeLG Display Co., Ltd.
InventorMin-Kyu Kim
Life of this patent
Estimating the term…
Abstract
A display device includes: a substrate having a display area and a non-display area; a lower connection line disposed in the non-display area; a bank layer disposed on the lower connection line and having an undercut structure at an edge of a lower end portion thereof; a bank etch layer disposed between the lower connection line and the bank layer and having an edge inside the edge of the lower end portion of the bank layer; and a second driving electrode disposed on the bank layer and electrically connected to the lower connection line at least once, wherein a plurality of bank holes are formed in the bank layer.
Claims30
A display device, comprising:
- a substrate having a display area and a non-display area;
- a lower connection line disposed in the non-display area;
- a bank layer disposed on the lower connection line in the non-display area;
- a bank etch layer disposed between the lower connection line and the bank layer in the non-display area such that the bank etch layer is farther from the substrate than the lower connection line, the bank etch layer having an edge that is inset from an edge of a lower end portion of the bank layer such that an undercut structure is located between the edge of the lower end portion of the bank layer that extends beyond the edge of the bank etch layer and a portion of the lower connection line that overlaps the edge of the lower end portion of the bank layer;
- and
- a second driving electrode disposed on the bank layer in the non-display area, the second driving electrode electrically connected to the lower connection line at least once in the non-display area via a plurality of bank holes in the bank layer.
A display device comprising:
- a substrate which has a display area including a plurality of subpixels and a non-display area outside the display area;
- a plurality of first driving electrodes in the display area, each first driving electrode provided for a corresponding one of the plurality of subpixels;
- a lower connection line in the non-display area, the lower connection line made of a same material as the plurality of first driving electrodes;
- a bank layer having a first bank layer portion disposed on the plurality of first driving electrodes in the display area and a second bank layer portion on the lower connection line in the non-display area;
- a second driving electrode that is disposed on the first bank layer portion in the display area and the second bank layer portion in the non-display area, the second driving electrode spaced apart from the first driving electrode, and connected to the lower connection line at least once in the non-display area;
- and
- a bank etch layer disposed between the lower connection line and the second bank layer portion in the non-display area such that an upper surface of the bank etch layer is covered by the second bank layer portion in the non-display area, the bank etch layer having an edge that is inset from an edge of a lower end portion of the second bank layer portion in the non-display area such that an undercut structure is located between the edge of the lower end portion of the second bank layer portion that extends beyond the edge of the bank etch layer and a portion of the lower connection line that overlaps the edge of the lower end portion of the bank layer,
- wherein the second driving electrode is in contact with a side portion of the bank layer.
Dependencies are inferred from the claim text.