Electroluminescent display apparatus
AssigneeLG Display Co., Ltd.
InventorsTaeRyong Kim, TaeHyun Min
Life of this patent
Estimating the term…
Abstract
An electroluminescent display apparatus includes a substrate including a display area and a non-display area which surrounds the display area, a crack detecting unit on the substrate in the non-display area, an interlayer insulating layer disposed so as to cover the crack detecting unit, a power supply electrode which is located on the interlayer insulating layer and is disposed between the crack detecting unit and the display area, a protective layer disposed so as to cover the power supply electrode; a planarizing layer which is located on the protective layer and is disposed so as to overlap the crack detecting unit, and an alignment reference unit which is located on the planarizing layer and overlaps the crack detecting unit.
Claims24
An electroluminescent display apparatus comprising:
- a substrate including a display area that displays an image and a non-display area enclosing the display area, the non-display not configured to display the image;
- at least one crack detecting unit on the non-display area of the substrate, the at least one crack detecting unit configured to detect a crack in the electroluminescent display apparatus;
- an interlayer insulating layer covering the crack detecting unit;
- a power supply electrode configured to supply a voltage, the power supply electrode on the interlayer insulating layer and disposed between the crack detecting unit and the display area;
- a protective layer covering the power supply electrode;
- a planarizing layer on the protective layer, the planarizing layer overlapping the at least one crack detecting unit;
- and
- an alignment reference unit in the non-display area of the substrate, the alignment reference unit on the planarizing layer and overlapping the crack detecting unit in the non-display area.
An electroluminescent display apparatus, comprising:
- a substrate including a display area that displays an image and a non-display area enclosing the display area;
- a first crack detecting unit in the non-display area of the substrate, the first crack detecting unit configured to identify a crack in the electroluminescent display apparatus;
- a second crack detecting unit in the non-display area of the substrate, the second crack detecting unit spaced apart from the first crack detecting unit, wherein the second crack detecting unit is configured to identify the crack in the electroluminescent display apparatus;
- an alignment reference unit integrally formed with at least the first crack detecting unit, the alignment reference unit comprising a same material as the first crack detecting unit;
- a power supply electrode disposed in the non-display area between the second crack detecting unit and the display area, the power supply electrode configured to supply power to a light emitting device included in the electroluminescent display apparatus;
- and
- at least one dam disposed between the second crack detecting unit and the display area, the at least one dam overlapping the power supply electrode.
An electroluminescent display apparatus comprising:
- a substrate including a display area and a non-display area surrounding the display area on a front surface of the substrate;
- a light emitting device in the display area of the substrate;
- a first crack detecting unit and a second crack detecting unit in the non-display area, the first crack detecting unit and the second crack detecting unit configured to identify one or more cracks in the electroluminescent display apparatus;
- an alignment reference unit in the non-display area of the substrate;
- and
- a back plate coupled to a rear surface of the substrate, the back plate aligned with the alignment reference unit.
Dependencies are inferred from the claim text.