CROSS-REFERENCE TO RELATED APPLICATION

This application claims priority under 35 USC § 119 to Korean Patent Application No. 10-2019-0098578, filed on Aug. 13, 2019, in the Korean Intellectual Property Office (KIPO), the disclosure of which is incorporated by reference herein in its entirety.

TECHNICAL FIELD

Exemplary embodiments of the present inventive concept relate to a display apparatus and a method of manufacturing the display apparatus. More particularly, exemplary embodiments of the present inventive concept relate to a display apparatus capable of increasing display quality and a method of manufacturing the display apparatus.

DISCUSSION OF THE RELATED ART

Currently, a display apparatus having light weight and small size has been under development. A cathode ray tube (CRT) display apparatus has been used due to its performance and a competitive price. However, the CRT display apparatus has a relatively large size and lacks portability. Therefore, a display apparatus such as a plasma display apparatus, a liquid crystal display apparatus and an organic light emitting display apparatus has been increasingly used due to its small size, light weight and low-power-consumption.

In an attempt to enlarge a display area of the display apparatus, a bezel-less display apparatus, a display apparatus including a notch, and the like have been under development. In addition, a display apparatus in which a hole is formed in the display area and a camera, sensor or the like is positioned in the hole has been under development.

SUMMARY

According to an exemplary embodiment of the present inventive concept, a display apparatus includes: a base substrate including a display area, an opening area, and an opening peripheral area between the opening area and the display area, wherein the display area surrounds the opening area, and the opening peripheral area has an annular shape; a conductive pattern disposed on the base substrate in the opening peripheral area and having an annular shape; and a light emitting layer disposed on the base substrate and in a portion of the opening peripheral area, and including an organic material, and wherein the light emitting layer is not formed at a portion of opening peripheral area that is adjacent to the opening area.

In an exemplary embodiment of the present inventive concept, the conductive pattern includes metal.

In an exemplary embodiment of the present inventive concept, the conductive pattern is spaced apart from the light emitting layer.

In an exemplary embodiment of the present inventive concept, a hole penetrating the display apparatus is formed in the opening area, and a cutting surface providing the hole is formed, and the cutting surface and the light emitting layer formed in the opening peripheral area are spaced apart from each other.

In an exemplary embodiment of the present inventive concept, the conductive pattern is disposed between the cutting surface and the light emitting layer.

In an exemplary embodiment of the present inventive concept, the conductive pattern is exposed at the cutting surface.

In an exemplary embodiment of the present inventive concept, the display apparatus further includes: an active pattern disposed on the base substrate in the display area; a first insulating layer disposed on the base substrate; a gate pattern including a gate electrode of a thin film transistor and the conductive pattern, and disposed on the first insulating layer; a second insulating layer disposed on the gate pattern; a source drain pattern disposed on the second insulating layer and including a source electrode and a drain electrode of the thin film transistor, wherein the source electrode and the drain electrode are electrically connected to the active pattern; a via insulating layer disposed on the source drain pattern in the display area; a pixel electrode disposed in the display area and between the via insulating layer and the light emitting layer, wherein the pixel electrode is electrically connected to the thin film transistor; and a thin film encapsulation layer disposed on the light emitting layer and including a first inorganic layer, an organic layer disposed on the first inorganic layer, and a second inorganic layer disposed on the organic layer.

In an exemplary embodiment of the present inventive concept, the organic layer of the thin film encapsulation layer is not formed in the opening peripheral area, wherein the first inorganic layer and the second inorganic layer of the thin film encapsulation layer contact each other, and the first inorganic layer covers a side surface of the light emitting layer disposed in the opening peripheral area.

In an exemplary embodiment of the present inventive concept, the first and second inorganic layers are not formed in the portion of the opening peripheral area that is adjacent to the opening area.

According to an exemplary embodiment of the present inventive concept, a display apparatus includes: a base substrate including a display area, an opening area, and an opening peripheral area between the opening area and the display area, wherein the display area surrounds the opening area, and the opening peripheral area has an annular shape; and a light emitting layer disposed on the base substrate and in a portion of the opening peripheral area, and including an organic material, wherein a hole penetrating the display apparatus is formed in the opening area, and a cutting surface providing the hole is formed, and the cutting surface and the light emitting layer formed in the opening peripheral area are spaced apart from each other.

According to an exemplary embodiment of the present inventive concept, a method of manufacturing a display apparatus includes: forming a heating pattern having a conductivity in an opening peripheral area on a base substrate, wherein the base substrate includes a display area, an opening area, and the opening peripheral area between the opening area and the display area, wherein the display area surrounds the opening area, and the opening peripheral area has an annular shape; forming a first heat shrink layer having a first heat shrink rate on the heating pattern forming a second heat shrink layer having a second heat shrink rate greater than the first heat shrink rate on the first heat shrink layer, forming a light emitting layer including an organic material on the second heat shrink layer and the base substrate; applying a magnetic field to the heating pattern to generate an induction current to heat the first and second heat shrink layers; and removing a portion of the light emitting layer formed on the second heat shrink layer.

In an exemplary embodiment of the present inventive concept, in forming the first and second heat shrink layers, an edge of the second heat shrink layer is formed to cover an edge of the first heat shrink layer.

In an exemplary embodiment of the present inventive concept, the method further including: forming a thin film encapsulation layer including a first inorganic layer, an organic layer, and a second inorganic layer on the light emitting layer, after removing the portion of the light emitting layer, wherein the organic layer of the thin film encapsulation layer is not formed in the opening peripheral area, wherein the first inorganic layer and the second inorganic layer of the thin film encapsulation layer contact each other, and the first inorganic layer covers a side surface of the light emitting layer disposed in the opening peripheral area.

In an exemplary embodiment of the present inventive concept, the method further includes: forming a hole penetrating the display apparatus in the opening area after forming the thin film encapsulation layer.

In an exemplary embodiment of the present inventive concept, in forming the hole, a portion of the heating pattern is removed, wherein side surfaces of the heating pattern are exposed at a cutting surface providing the hole.

In an exemplary embodiment of the present inventive concept, in forming the hole, a cutting surface providing the hole is spaced apart from the light emitting layer formed in the opening peripheral area.

In an exemplary embodiment of the present inventive concept, in applying the magnetic field, the magnetic field is provided by an induction heater including a coil and an alternating current generator.

In an exemplary embodiment of the present inventive concept, the heating pattern is formed to have an annular shape in the opening peripheral area, and wherein in forming the first and second heat shrink layers, the first and second heat shrink layers are formed in a shape of a circle overlapping the heating pattern.

In an exemplary embodiment of the present inventive concept, the method further including: forming a thin film encapsulation layer on the light emitting layer before removing the portion of the light emitting layer, and wherein in removing the portion of the light emitting layer, the first and second heat shrink layers, the portion of the light emitting layer formed on the second heat shrink layer, and a portion of the thin film encapsulation layer formed on the light emitting layer are removed.

In an exemplary embodiment of the present inventive concept, the first heat shrink layer includes an epoxy resin or polyimide, and the second heat shrink layer includes at least one of acrylic resin, polyolefin, polyvinyl chloride (PVC), polyester (PET) or polymethyl methacrylate (PMMA).

