Organic light emitting diode display device and method of manufacturing the same
View Patent ↗The OLED display device includes a substrate, a first electrode located on the substrate, a pixel defining layer located on the first electrode to expose a part of the first electrode, a fluorine-based polymer layer located on the pixel defining layer, an organic layer located on the first electrode, and a second electrode located on the entire surface of the substrate. The method of manufacturing the OLED display device includes forming a first electrode on a substrate, forming a pixel defining layer on the first electrode, forming a fluorine-based polymer layer on the pixel defining layer, patterning the fluorine-based polymer layer and the pixel defining layer by laser ablation to open a part of the first electrode, forming an organic layer on the opened first electrode, and forming a second electrode on the entire surface of the substrate.
1. A method of manufacturing an organic light emitting diode (OLED) display device, comprising:
providing a substrate;
forming a first electrode on the substrate;
forming a pixel defining layer on substrate to entirely cover the first electrode;
forming a fluorine-based polymer layer on the pixel defining layer, the fluorine-based polymer layer being composed of a hydrophobic material;
forming an opening in the pixel defining layer and forming an opening in the fluorine-based polymer layer to expose a part of the first electrode, the opening of the fluorine-based polymer layer interconnecting to the opening of the pixel-defining layer to expose a part of the first electrode, the first electrode covering the opening of the pixel-defining layer, a surface of the first electrode exposed through the opening of the pixel-defining layer being hydrophilic;
forming an organic layer on the exposed part of the first electrode, the opening of the fluorine-based polymer layer filled with the organic layer, the organic layer being internally contiguous, the organic layer contacting the fluorine-based polymer layer; and
forming a second electrode on the organic layer and the fluorine-based polymer layer, the organic layer forming a contact lip, the contact lip lying between the fluorine-based polymer layer and the second electrode.
2. The method of claim 1 , the formation of the opening in the pixel defining layer and the fluorine-based polymer layer comprising patterning the pixel defining layer and the fluorine-based polymer layer by laser ablation.
3. The method of claim 2 , the laser being irradiated at an intensity of about 300 mW/cm 2 or more.
4. The method of claim 1 , the pixel defining layer being formed using a photoresist material.
5. The method of claim 1 , the fluorine-based polymer layer being formed using at least one of the compounds represented by Formulae 1 to 3:
n being an integer of from about 50 to about 1,000;
m being an integer of from about 50 to about 1,000, and n being an integer of from about 50 to about 1,000; and
n being an integer of from about 50 to about 1,000.
6. The method of claim 5 , the fluorine-based polymer layer comprising a compound represented by Formula 1.
7. The method of claim 5 , the fluorine-based polymer layer comprising a compound represented by Formula 2.
8. The method of claim 5 , the fluorine-based polymer layer comprising a compound represented by Formula 3.
9. The method of claim 1 , the fluorine-based polymer layer being formed to have a thickness of from about 100 Å to about 3,000 Å.