Flexible display device including bent flexible substrate and bent circuit layer
A display device includes a substrate that is formed of a plurality of layers stacked together and a circuit layer. A circuit layer includes a display element area in which a plurality of pixel electrodes corresponding to a plurality of unit pixels and a self-luminous element layer are provided, and a peripheral area that has a wiring to the display element area and a terminal and is at least partially bent. The substrate includes a first area that overlaps the display element area of the circuit layer and a second area that overlaps the peripheral area and is at least partially bent. The layers include at least one inorganic layer and a plurality of organic layers. The number of the organic layers in the first area is greater than the number of the organic layers in the second area.
1. A display device comprising:
a substrate that is formed of a plurality of layers stacked together, the plurality of layers including a first organic insulation layer, a first inorganic insulation layer on the first organic insulation layer, a second organic insulation layer on the first inorganic insulation layer, and a second inorganic insulation layer on the second organic insulation layer;
a circuit layer that is stacked on the second inorganic insulation layer so as to include a circuit of a plurality of unit pixels forming an image, the circuit layer including a semiconductor layer in contact with the second inorganic insulation layer; and
a sealing layer that covers and seals the circuit layer, wherein
the circuit layer includes a display element area in which a plurality of pixel electrodes corresponding to the unit pixels and a self-luminous element layer are provided, and a peripheral area that has a wiring to the display element area and a terminal and is at least partially bent,
the substrate includes a first area that overlaps the display element area of the circuit layer and a second area that overlaps the peripheral area and is at least partially bent,
the first inorganic insulation layer has a bottom surface adhered to the first organic insulation layer in the first area and the second area, and
the first inorganic insulation layer has a top surface adhered to the second organic insulation layer in the first area but not in the second area.
2. The display device according to claim 1 , wherein the first inorganic insulation layer and the second inorganic insulation layer are in contact with each other in the second area so that the second inorganic insulation layer covers a side portion of the second organic layer.