Organic light emitting display device
Embodiments relate to an organic light emitting display device according to the present disclosure including: a plurality of pixels which includes red, white, blue, and green sub-pixels; driving transistor, each of which is disposed in each sub-pixel; and organic light emitting diodes, each of which is disposed corresponding to each sub-pixel, wherein a first step portion, first and second bank layers, and a first step compensation portion are disposed between the white sub-pixel and a sub-pixel adjacent thereto, thereby having an effect of suppressing a short circuit defect and a light leakage defect. In addition, an organic light emitting display device according to the present disclosure includes: red, white, blue, and green sub-pixels; at least one step portion between the sub-pixels; first and second bank layers; and a step compensation portion, thereby having an effect of suppressing a short circuit defect and a light leakage defect.
1. A method of manufacturing an organic light emitting diode (OLED) device, comprising:
forming color filters in subpixels of color other than white and filter layers in regions between white subpixels and the subpixels of colors other than white;
forming a planarization layer at least over the color filters;
forming first electrodes in the subpixels of color other than white and the white subpixels;
removing portions of the planarization layer in the regions between the white subpixels and the subpixels of colors other than white; and
forming bank layers in the regions on or over the filter layers and over the first electrodes.
2. The method of claim 1 , further comprising:
forming data lines on a substrate; and
forming a protective layer over the data lines and the substrate.
3. The method of claim 2 , further comprising:
forming an organic light emitting layer on the first electrodes; and
forming second electrodes on the organic light emitting layer.
4. The method of claim 2 , wherein the bank layers comprise a first bank layer at least partially overlapping one of the filter layers and one of the data lines, and a second bank layer overlapping the one of the filter layers and the other of the data lines.
5. The method of claim 4 , wherein the first bank layer and the second bank layer contact the one of the filter layers.
6. The method of claim 1 , wherein forming the color filters and the filter layers comprise using a halftone mask or a diffraction mask to make the filter layers in the regions thicker than the color filter in the subpixels of color other than white.
7. The method of claim 1 , wherein the filter layers extend from the color filters.
8. The method of claim 1 , wherein at least a subset of the filter layers are formed by overlapping two or more color filters.
9. The method of claim 1 , wherein the filter layers are disposed at least partially on two metal lines separated on a substrate.
10. The method of claim 9 , wherein the two metal lines are adjacent data lines.