Organic light emitting diode display panel, manufacturing method thereof, and organic light emitting diode display apparatus
View Patent ↗The present disclosure discloses an organic light emitting diode display panel, a manufacturing method thereof, and an organic light emitting diode display apparatus. The organic light emitting diode display panel may include a display region and a non-display region, and a surface of the non-display region filled with a sealant layer to smooth the surface of the non-display region. The non-display region of the display panel of the present disclosure may have a smooth surface. A peripheral wiring may be facilitated, and a process difficulty of the wiring may be reduced. Moreover, the sealant layer may absorb and disperse the stress between the layers, and may improve a de-lamination condition caused by an excessive stress.
1. An organic light-emitting diode display panel comprising:
a display region, a non-display region, and an organic light-emitting layer;
wherein the display region corresponds to a position where the organic light-emitting layer is located in;
wherein a sealant layer is arranged on the non-display region, and the sealant layer is not arranged on the display region where the organic light-emitting layer is located in;
wherein an inorganic flat layer is formed on a surface of the display region and on at least a portion of a surface of the sealant layer; and
a touch electrode layer on the inorganic flat layer in the display region and at least a portion of non-display region.
2. The organic light-emitting diode display panel according to claim 1 , wherein
the non-display region comprises:
a device layer and at least one retaining wall disposed on the device layer, and the sealant layer is disposed on the retaining wall.
3. The organic light-emitting diode display panel according to claim 2 , wherein
the sealant layer covers the retaining wall and the device layer not covered by the retaining wall;
a recessed region in the non-display region relative to the display region is filled by the sealant layer, further to smooth a contact surface between the non-display region and the display region.
4. The organic light-emitting diode display panel according to claim 2 , wherein
the sealant layer is formed by a coating process;
the sealant layer is made of an organic material; and the organic material comprises any one of ultraviolet glue and frame glue.
5. The organic light-emitting diode display panel according to claim 1 , wherein
the non-display region comprises:
a device layer and at least one retaining wall disposed on the device layer;
the sealant layer covering the retaining wall and the device layer not covered by the retaining wall;
a recessed region in the non-display region relative to the display region being filled by the sealant layer, further to smooth a contact surface between the non-display region and the display region.
6. The organic light-emitting diode display panel according to claim 5 , wherein
the non-display region further comprises:
an encapsulation layer, the encapsulation layer extending from the display region to the non-display region; the encapsulation layer covering the retaining wall and a portion of the device layer; and
the sealant layer covers at least a portion of the encapsulation layer and the device layer not covered by the encapsulation layer; and the sealant layer is smoothly and transitionally connected with the encapsulation layer located in the display region, so as to for a smooth connection surface between the sealant layer and the surface of the encapsulation layer that is not covered.
7. The organic light-emitting diode display panel according to claim 6 , wherein
the encapsulation layer comprises:
a first inorganic layer, a second inorganic layer, and an organic layer disposed between the first inorganic layer and the second inorganic layer;
the first inorganic layer is formed on the device layer, and the first inorganic layer covers the retaining wall.
8. The organic light-emitting diode display panel according to claim 1 , wherein
the sealant layer is made of an organic material; and
the organic material comprises any one of ultraviolet glue and frame glue.
9. The organic light-emitting diode display panel according to claim 1 , wherein
the sealant layer is formed by a coating process.
10. An organic light-emitting diode display apparatus, wherein
the organic light-emitting diode display apparatus comprises:
an organic light-emitting diode display panel; the organic light-emitting diode display panel comprising:
a display region, a non-display region, and an organic light-emitting layer;
wherein the display region corresponds to a position where the organic light-emitting layer is located in;
wherein a sealant layer is arranged on the non-display region, and the sealant layer is not arranged on the display region where the organic light-emitting layer is located in;
wherein an inorganic flat layer is formed on a surface of the display region and at least a portion of the surface of the sealant layer; and
a touch electrode layer is arranged on the inorganic flat layer in the display region and at least a portion of non-display region.
11. The organic light-emitting diode display apparatus according to claim 10 , wherein
the non-display region comprises:
a device layer and at least one retaining wall disposed on the device layer, and the sealant layer is disposed on the retaining wall.
12. The organic light-emitting diode display apparatus according to claim 11 , wherein
the sealant layer covers the retaining wall and the device layer not covered by the retaining wall;
a recessed region of the non-display region relative to the display region is filled by the sealant layer, further to smooth a contact surface between the non-display region and the display region.
13. The organic light-emitting diode display apparatus according to claim 10 , wherein
the non-display region comprises:
a device layer and at least one retaining wall disposed on the device layer;
the sealant layer covering the retaining wall and the device layer not covered by the retaining wall;
a recessed region in the non-display region relative to the display region being filled by the sealant layer, further to smooth a contact surface between the non-display region and the display region.
14. The organic light-emitting diode display apparatus according to claim 13 , wherein
the non-display region further comprises:
an encapsulation layer, the encapsulation layer extending from the display region to the non-display region; the encapsulation layer covering the retaining wall and a portion of the device layer; and
the sealant layer covers at least a portion of the encapsulation layer and the device layer not covered by the encapsulation layer; and the sealant layer is smoothly and transitionally connected with the encapsulation layer located in the display region, so as to for a smooth connection surface between the sealant layer and the surface of the encapsulation layer that is not covered.
15. The organic light-emitting diode display apparatus according to claim 14 , wherein
the encapsulation layer comprises:
a first inorganic layer, a second inorganic layer, and an organic layer disposed between the first inorganic layer and the second inorganic layer;
the first inorganic layer is formed on the device layer, and the first inorganic layer covers the retaining wall.
16. The organic light-emitting diode display apparatus according to claim 10 , wherein
the sealant layer is formed by a coating process, and
the sealant layer is made of an organic material; and
the organic material comprises any one of ultraviolet glue and frame glue.
17. A manufacturing method of an organic light-emitting diode display panel, wherein the method of fabricating comprises:
preparing the substrate;
forming an organic light-emitting layer, a display region, and a non-display region of the display panel on the substrate;
arranged a sealant layer on the non-display region, not arranged on the display region where the organic light-emitting layer is located in;
wherein the display region corresponds to a position where the organic light-emitting layer is located in;
wherein an inorganic flat layer is formed on a surface of the display region and at least a portion of the surface of the sealant layer; and
a touch electrode layer is arranged on the inorganic flat layer in the display region and at least a portion of non-display region.
18. The organic light-emitting diode display panel according to claim 1 , wherein
the sealant layer has a smoothly curved surface without any corners.
19. The organic light-emitting diode display panel according to claim 1 , wherein
the touch electrode layer extend to the non-display region.