Display device and method of manufacturing display device
AssigneeSharp Kabushiki Kaisha
InventorsEiji Koike, Tohru Sonoda, Masahiro Inuzuka
Life of this patent
Estimating the term…
Abstract
A display device includes a display area, a frame area around the display area, and a contact area between the display area and the frame area. In the display area is there provided a light-emitting element layer including an anode, a functional layer, a cathode, and a pixel bank covering an edge of the anode. The cathode is electrically connected to a metal film in the contact area. An insular TEG pattern is provided in the contact area.
Claims20
A display device comprising a display area and a frame area around the display area, the display area including a stack body including:
- a thin-film transistor (TFT) layer;
- a light-emitting element layer including an anode, a functional layer, a cathode, and a pixel bank covering an edge of the anode;
- and a sealing layer;
- the sealing layer including at least one organic film, and a partition wall provided in the frame area, the partition wall being configured to delineate an edge of the at least one organic film;
- the display device further comprising, between the display area and the partition wall, a contact area in which the cathode is electrically connected to a metal film made of a same material and in a same layer as the anode;
- and
- an insular test element group (TEG) pattern provided in the contact area, the insular TEG pattern being made of a same material as the functional layer, wherein
- the metal film has a first opening at least partially overlapped by the insular TEG pattern when viewed from above with respect to a stacking direction for the stack body.
A display device comprising a display area and a frame area around the display area, the display area including a stack body including:
- a thin-film transistor (TFT) layer;
- a light-emitting element layer including an anode, a functional layer, a cathode, and a pixel bank covering an edge of the anode;
- and a sealing layer;
- the sealing layer including at least one organic film, and a partition wall provided in the frame area, the partition wall being configured to delineate an edge of the at least one organic film;
- the display device further comprising, between the display area and the partition wall, a contact area in which the cathode is electrically connected to a metal film made of a same material and in a same layer as the anode;
- an insular test element group (TEG) pattern provided in the contact area, the insular TEG pattern being made of a same material as the functional layer;
- and
- an out-of-pixel bank provided on the metal film, the out-of-pixel bank having a first opening, wherein
- the insular TEG pattern at least partially overlaps the first opening when viewed from above with respect to a stacking direction for the stack body.
Dependencies are inferred from the claim text.