Organic light emitting display device including touch sensor

1. An organic light emitting display device, comprising:

a first sub-pixel, a second sub-pixel, and a third sub-pixel, each of the first to third sub-pixels including a driving thin film transistor and a light emitting diode;

an encapsulation substrate configured to cover the driving thin film transistor and the light-emitting diode of each of the first, second and third sub-pixels; and

a touch sensor disposed on the encapsulation substrate,

wherein the touch sensor includes:

a first, a second, and a third lower electrode disposed on the encapsulation substrate;

a first color control layer disposed on the first lower electrode to correspond to the first sub-pixel, the first color control layer having a first thickness;

a second color control layer disposed on the second lower electrode to correspond to the second sub-pixel, the second color control layer having a second thickness;

a third color control layer disposed on the third lower electrode to correspond to the third sub-pixel, the third color control layer having a third thickness; and

a first, a second, and a third upper electrode disposed on each of the first, the second, and the third color control layers, respectively,

wherein the first, second and third thickness of the first, second and third color control layers are different from each other.

2. The organic light emitting display device of claim 1 , wherein the lower electrode and the upper electrode have a same thickness.

3. The organic light emitting display device of claim 1 , wherein a white light is emitted from the light-emitting diode,

wherein the first sub-pixel is a red sub-pixel and the thickness of the first color control layer is configured to convert the white light into red light,

wherein the second sub-pixel is a green sub-pixel and the thickness of the second color control layer is configured to convert the white light into green light, and

wherein the third sub-pixel is a blue sub-pixel and the thickness of the third color control layer is configured to convert the white light into blue light.

4. The organic light emitting display device of claim 3 , wherein the first color control layer of the red sub-pixel has a first thickness,

wherein the second color control layer of the green sub-pixel has a second thickness that is smaller than the first thickness, and

wherein the third color control layer of the blue sub-pixel has a third thickness that is smaller than the second thickness.

5. The organic light emitting display device of claim 1 , wherein the lower electrodes include a plurality of first lower electrode surfaces and a plurality of second lower electrode surfaces, the plurality of first lower electrode surfaces are disposed in a first direction and electrically connected to each other, the plurality of second lower electrode surfaces are disposed between the plurality of first lower electrode surfaces,

wherein the upper electrodes include a plurality of first upper electrode surfaces and a plurality of second upper electrode surfaces, the plurality of first upper electrode surfaces are disposed in a second direction perpendicular to the first direction and electrically connected to each other, the plurality of second upper electrode surfaces are disposed between the plurality of first upper electrode surfaces,

wherein the plurality of second lower electrode surfaces are electrically separated from the plurality of first lower electrode surfaces, and

wherein the plurality of second upper electrode surfaces are electrically separated from the plurality of first upper electrode surfaces.

6. The organic light emitting display device of claim 5 , wherein a first set of the plurality of first lower electrode surfaces are disposed in parallel with an adjacent second set of the plurality of first lower electrode surfaces and spaced apart in the second direction, and the adjacent second set of the plurality of first lower electrode surfaces disposed in the second direction are electrically separated from the first set, and

wherein a first set of the plurality of first upper electrode surfaces are disposed in parallel with an adjacent second set of the plurality of first upper electrode surfaces and spaced apart in the first direction, and the adjacent second set of the plurality of first upper electrode surfaces disposed in the first direction are electrically separated from the first set.

7. The organic light emitting display device of claim 5 , wherein the plurality of second lower electrode surfaces and the plurality of second upper electrode surfaces are electrically grounded.

8. The organic light emitting display device of claim 1 , wherein the light emitting diode includes a first electrode disposed below each of the first to third sub-pixels, an organic light emitting layer disposed on the first electrode as a single, continuous layer, and a second electrode disposed on the organic light emitting layer.

9. The organic light emitting display device of claim 8 , wherein the driving thin film transistor includes a semiconductor layer, a gate insulating film disposed on the semiconductor layer, a gate electrode disposed on the gate insulating film, an interlayer insulating film disposed on the gate electrode, and source and drain electrodes disposed on the interlayer insulating film, and

wherein the first electrode is disposed on a protective layer which is disposed on the source and drain electrodes.

10. A display device, comprising:

a first sub-pixel, a second sub-pixel, and a third sub-pixel, each of the first, the second, and the third sub-pixel including a respective transistor and light emitting source;

a substrate overlying on the transistor and the light emitting source of each of the first, the second, and the third sub-pixel; and

a touch sensor disposed on the substrate,

wherein the touch sensor includes:

a plurality of lower electrodes spaced apart from each other, each of the lower electrodes disposed on the substrate;

a plurality of upper electrodes spaced apart from each other, each of the upper electrodes positioned over a corresponding one of the lower electrodes;

a first color control layer located between a first lower electrode of the plurality of lower electrodes and a first upper electrode of the plurality of upper electrodes, the first color control layer emits light corresponding to a color of the first sub-pixel;

a second color control layer located between a second lower electrode of the plurality of lower electrodes and a second upper electrode of the plurality of upper electrodes, the second color control layer emits light corresponding to a color of the second sub-pixel; and

a third color control layer located between a third lower electrode of the plurality of lower electrodes and a third upper electrode of the plurality of upper electrodes, the third color control layer emits light corresponding to a color of the third sub-pixel;

wherein the first, second and third color control layers have different thicknesses to emit lights having different wavelengths.