Flexible display device with multiple types of micro-coating layers
There is provided a flexible display having a plurality of innovations configured to allow bending of a portion or portions to reduce apparent border size and/or utilize the side surface of an assembled flexible display.
1. A flexible display apparatus, comprising:
a base layer having a first portion, a second portion and a bend portion being bent between the first portion and second portion;
an OLED display unit on the first portion;
an encapsulation on the OLED display unit;
an optical film on the encapsulation;
a connecting interface in the second portion, for connecting a printed circuit film;
a wire trace extended between the connecting interface and the OLED display unit; and
a coating layer on the first portion and the bend portion, contacting with the wire trace and at least a portion of the optical film.
2. The flexible display apparatus of claim 1 , wherein the connecting interface includes a pad of FPCB.
3. The flexible display apparatus of claim 1 , wherein the coating layer is formed of a photo-curable acrylic resin.
4. The flexible display apparatus of claim 1 , wherein the coating layer has an uneven surface.
5. The flexible display apparatus of claim 4 , wherein the coating layer has a first thickness in the first portion, and a second thickness in the second portion, and wherein the first thickness is different from the second thickness.
6. The flexible display apparatus of claim 5 , wherein the first thickness is larger than the second thickness.
7. The flexible display apparatus of claim 1 , further comprising a first support layer is on the first portion and a second support layer is on the second portion.
8. The flexible display apparatus of claim 7 , wherein a bottom surface of the first support layer faces a top surface of the second support layer.
9. The flexible display apparatus of claim 7 , further comprising at least one of an adhesive layer located between the first support layer and the second support layer.
10. The flexible display apparatus of claim 1 , further comprising a touch sensing layer located above the OLED display unit and extending into at least a portion of the first portion.
11. The flexible display apparatus of claim 10 , wherein the touch sensing layer includes a layer formed of one or more deformable dielectric materials.
12. The flexible display apparatus of claim 10 , wherein the touch sensing layer includes at least one of aluminum material and formed as a metal mesh structure.
13. The flexible display apparatus of claim 1 , wherein the optical film has a sidewall and the sidewall of the optical film in contact with the coating layer.
14. The flexible display apparatus of claim 13 , wherein the coating layer has an uneven thickness.
15. The flexible display apparatus of claim 14 , wherein the coating layer has a first thickness in the first portion near the sidewall of the optical film, and a third thickness in the bend portion, wherein the first thickness is different from the third thickness.
16. The flexible display apparatus of claim 15 , wherein the first thickness is larger than the second thickness.
17. The flexible display apparatus of claim 1 , further comprising a cover layer located above the optical film.
18. The flexible display apparatus of claim 17 , wherein the cover layer is extended further out toward the bend portion of the base layer.
19. The flexible display apparatus of claim 18 , wherein the touch sensing layer and the optical film located between the cover layer and the base layer.
20. The flexible display apparatus of claim 1 , wherein the wire trace having plurality of holes in the bend portion, the plurality of holes are formed discretely along a routing direction of the wire trace.