Display device and touch display device

A touch display device, comprising:

• a base substrate comprising a display area and a non-display area;
• a plurality of light emitting element layers disposed in the display area;
• a plurality of lens layers disposed over the plurality of light emitting element layers;
• an intermediate layer disposed to cover the plurality of light emitting element layers, the intermediate layer including an encapsulation layer disposed between the plurality of the light emitting element layers and the plurality of lens layers, the encapsulation layer including a first inorganic encapsulation film, a second inorganic encapsulation film and an organic encapsulation film disposed between the first inorganic encapsulation film and the second inorganic encapsulation film, and the intermediate layer further including an insulation layer disposed on the encapsulation layer;
• a plurality of touch electrodes having a mesh shape and disposed on the insulation layer of the intermediate layer,
• the plurality of lens layers having a convex shape and disposed inside the plurality of touch electrodes while being disposed on the intermediate layer;
• a lens protecting layer disposed on the intermediate layer and configured to cover one lens layer of the plurality of lens layers;
• a first dam disposed in the non-display area and configured to surround the organic encapsulation film;
• and
• a second dam disposed in the non-display area and configured to surround the lens protecting layer,
• wherein a refractive index of the plurality of lens layers is higher than a refractive index of the organic encapsulation film in the encapsulation layer, and the refractive index of the organic encapsulation film is higher than a refractive index of the lens protecting layer,
• wherein the refractive index of the lens layer is 1.8 and the refractive index of the lens protecting layer is 1.3,
• wherein a transistor is disposed below the plurality of light emitting element layers, and
• wherein the first dam and the second dam are disposed in different layers so as to overlap each other in an upward and downward direction.

A touch display device, comprising:

• a base substrate comprising a display area and a non-display area;
• a plurality of light emitting element layers disposed in the display area;
• a plurality of lens layers disposed over the plurality of light emitting element layers;
• an intermediate layer disposed to cover the plurality of light emitting element layers, the intermediate layer including an encapsulation layer disposed between the plurality of light emitting element layers and the plurality of lens layers, the encapsulation layer including a first inorganic encapsulation film, a second inorganic encapsulation film and an organic encapsulation film disposed between the first inorganic encapsulation film and the second inorganic encapsulation film, and the intermediate layer further including an insulation layer disposed between the lens layer and the encapsulation layer;
• a plurality of touch electrodes having a mesh shape and the plurality of lens layers each having a convex shape, both of the plurality of touch electrodes and the plurality of lens layers being directly disposed on a same surface of the insulation layer;
• a lens protecting layer disposed on the insulation layer and covering one lens layer of the plurality of lens layers;
• a first dam disposed in the non-display area and configured to surround the organic encapsulation film;
• and
• a second dam disposed in the non-display area and configured to surround the lens protecting layer,
• wherein a total reflection of light output from a light emitting area of one light emitting element layer of the plurality of light emitting element layers does not occur on an interface between the one lens layer and the lens protecting layer,
• wherein a refractive index of the lens layer is higher than a refractive index of the organic encapsulation film in the encapsulation layer, and the refractive index of the organic encapsulation film is higher than a refractive index of the lens protecting layer,
• wherein the refractive index of the lens layer is 1.8 and the refractive index of the lens protecting layer is 1.3,
• wherein a transistor is disposed below the plurality of light emitting element layers, and
• wherein the first dam and the second dam are disposed in different layers so as to overlap each other in an upward and downward direction.