Organic electrolumescent display
View Patent ↗An organic electro luminescent display with auxiliary layers on a cathode contact and an encapsulating junction region to easily remove polymer organic layers of the junction. The organic electro luminescent display has the first electrode formed on a lower insulating substrate, a pixel defining layer formed to make some portions of the first electrode opened over the entire surface of the lower insulating substrate, an organic emission layer formed on an opening of the first electrode, the second electrode formed on the organic emission layer, an upper substrate for encapsulating the first electrode, the organic emission layer and the second electrode, and auxiliary layers formed on the cathode contact and the encapsulating junction region of the lower insulating substrate.
1. An organic electro luminescent display, comprising:
a lower insulating substrate;
a plurality of thin film transistors (TFTs) and a plurality of light emitting elements arranged on the lower insulating substrate;
an upper substrate bound to the lower insulating substrate;
an encapsulating junction region to encapsulate the upper substrate to the lower insulating substrate via a sealant; and
a wave guide arranged in the encapsulating junction region on an inner side of one or both of the upper substrate and the lower insulating substrate.
2. The display of claim 1 , wherein the wave guide is unevenness.
3. The display of claim 1 , wherein the wave guide is a convex lens.
4. The display of claim 1 , wherein the wave guide is arranged on both the upper substrate and the lower insulating substrate.
5. The display of claim 1 , wherein the encapsulating junction region is spaced-apart from each of the plurality of TFTs and the plurality of light emitting elements.
6. The display of claim 1 , wherein the wave guide is comprised of a material having an optical transmissive property.
7. The display of claim 6 , wherein the wave guide is comprised of a material selected from a group consisting of SiO 2 and SiN x .