OLED display device and manufacturing method thereof

摘要

The present invention provides an OLED display device and a manufacturing method thereof, in which a planarization layer (5) of a white sub pixel zone (40) is made to have a thickness greater than the thickness of a planarization layer (5) of the other sub pixel zones so as to increase the vertical distance between bottom wiring (2) and a first electrode (6) in the white sub pixel zone (40) thereby compensating the problem that the vertical distance between the bottom wiring (2) and the first electrode (6) of the white sub pixel zone (40) is relatively small resulting from lacking of a filter in the white sub pixel zone (40) and preventing the occurrence of shorting or over current between the first electrode (6) and the bottom wiring (2) of the white sub pixel zone (40). The manufacturing method is simple and easy to perform and may prevent the occurrence of shorting or over current between the first electrode and the bottom wiring of the white sub pixel zone thereby enhancing yield rate of manufacture of the OLED display device.

主权项

1. An organic light emitting diode (OLED) display device, comprising: a red sub pixel zone, a green sub pixel zone, a blue sub pixel zone, and a white sub pixel zone;
wherein the white sub pixel zone comprises: a first substrate, bottom wiring and a thin-film transistor formed on the first substrate, a passivation layer formed on the bottom wiring, the thin-film transistor, and the first substrate, a planarization layer formed on the passivation layer, a first electrode formed on the planarization layer, an organic layer formed on the first electrode, a second electrode formed on the organic layer, and a second substrate arranged on the second electrode; wherein a thickness of the planarization of the white sub pixel zone is greater than thicknesses of the planarization layers of the red sub pixel zone, the green sub pixel zone, and the blue sub pixel zone; and wherein the thickness of the planarization layer of the white sub pixel zone is equal to a sum of thicknesses of the planarization layer and the blue filter of the blue sub pixel zone.