Display apparatus with substrate hole and touch electrode
A method of manufacturing a display apparatus includes providing a substrate, forming a display unit defining an opening portion in a display region over the substrate, forming a thin film encapsulation layer to seal the display unit, forming a touch electrode over the thin film encapsulation layer, forming a touch insulating film covering the touch electrode such that the thin film encapsulation layer and the touch insulating film are sequentially stacked and formed over the substrate in the opening portion, forming a touch contact hole by removing a portion of the touch insulating film to expose a portion of the touch electrode, and removing a portion of the touch insulating film and a portion of the thin film encapsulation layer formed in the opening portion to expose a portion of the substrate during the forming of the touch contact hole.
1. A display apparatus comprising:
a substrate defining a hole;
a display unit over the substrate, comprising a display region, and defining an opening portion in the display region;
a thin film encapsulation layer for sealing the display unit;
a touch electrode over the thin film encapsulation layer; and
a touch insulating film over the thin film encapsulation layer to cover the touch electrode, and defining a touch contact hole,
wherein a portion of the thin film encapsulation layer and a portion of the touch insulating film are sequentially stacked in the opening portion and form a barrier portion.
2. The display apparatus of claim 1 , wherein the thin film encapsulation layer comprises at least one inorganic film and at least one organic film, and wherein the barrier portion comprises a first layer comprising the at least one inorganic film, and a second layer comprising the touch insulating film.
3. The display apparatus of claim 1 , wherein the barrier portion defines a valley exposing a surface of the substrate.
4. The display apparatus of claim 1 , further comprising a touch line over the touch insulating film and contacting the touch electrode through the touch contact hole.
5. The display apparatus of claim 1 , wherein the opening portion has a larger width than the hole of the substrate.
6. The display apparatus of claim 1 , further comprising a passivation layer in the opening portion and covering the barrier portion.
7. The display apparatus of claim 1 , further comprising an upper dam and a buffer layer over the thin film encapsulation layer, wherein the upper dam is at an edge of the opening portion to prevent the buffer layer from spreading to the opening portion.