OLED display device comprising touch sensor, and method for manufacturing same

1. An organic light emitting diode (OLED) display device, comprising:

a substrate;

a pixel defining layer disposed on the substrate and defining an opening;

a first thin film encapsulation sublayer disposed on the pixel defining layer and in the opening;

a color filter layer disposed in the opening;

a second thin film encapsulation sublayer covering the first thin film encapsulation sublayer and the color filter layer;

a third thin film encapsulation sublayer disposed on the second thin film encapsulation sublayer; and

a touch sensor disposed on the third thin film encapsulation sublayer, wherein the touch sensor comprises a first metal layer and a second metal layer, and each of the first metal layer and the second metal layer has a low light reflection film disposed on a top surface thereof.

2. The OLED display device according to claim 1 , further comprising:

a black bank layer stacked with the pixel defining layer, wherein the black bank layer and the pixel defining layer collectively define the opening and are made of a black matrix.

3. The OLED display device according to claim 1 , wherein the first thin film encapsulation sublayer and the third thin film encapsulation sublayer are made of an inorganic material, and the second thin film encapsulation sublayer is made of an organic material.

4. The OLED display device according to claim 1 , wherein the low light reflection film is made of a black matrix, chromium oxide, or molybdenum oxide.

5. The OLED display device according to claim 1 , wherein the color filter layer comprises a red color resist layer disposed in a red pixel area of the OLED display device, a green color resist layer disposed in a green pixel area of the OLED display device, and a blue color resist layer disposed in a blue pixel area of the OLED display device.

6. A method for manufacturing an organic light emitting diode (OLED) display device, comprising steps of:

providing a substrate;

forming a pixel defining layer on the substrate, wherein the pixel defining layer defines an opening;

forming a first thin film encapsulation sublayer on the pixel defining layer and in the opening;

forming a color filter layer disposed in the opening using an ink-jet printing technique;

forming a second thin film encapsulation sublayer covering the first thin film encapsulation sublayer and the color filter layer;

forming a third thin film encapsulation sublayer on the second thin film encapsulation sublayer; and

forming a touch sensor on the third thin film encapsulation sublayer, wherein the touch sensor comprises a first metal layer and a second metal layer, and each of the first metal layer and the second metal layer has a low light reflection film disposed on a top surface thereof.

7. The method for manufacturing the OLED display device according to claim 6 , further comprising:

forming a black bank layer stacked with the pixel defining layer, wherein the black bank layer and the pixel defining layer collectively define the opening and are made of a black matrix.

8. The method for manufacturing the OLED display device according to claim 6 , wherein the first thin film encapsulation sublayer and the third thin film encapsulation sublayer are made of an inorganic material, and the second thin film encapsulation sublayer is made of an organic material.

9. The method for manufacturing the OLED display device according to claim 6 , wherein the color filter layer comprises a red color resist layer disposed in a red pixel area of the OLED display device, a green color resist layer disposed in a green pixel area of the OLED display device, and a blue color resist layer disposed in a blue pixel area of the OLED display device.