Patent ID: 8736158

Claim:
A top emission type organic electroluminescent display device, comprising: a first substrate including a pixel region; a switching thin film transistor and a driving thin film transistor in the pixel region on the first substrate; a passivation layer covering the switching thin film transistor and the driving thin film transistor and exposing a drain electrode of the driving thin film transistor; a first electrode on the passivation layer and connected to the drain electrode of the driving thin film transistor; a buffer pattern in a border of the pixel region and overlapping an edge of the first electrode; a first spacer on the buffer pattern along a first direction, the first spacer having a first thickness and a dam shape; a second spacer on the buffer pattern along a second direction, the second spacer having a second thickness and a dam shape; a third spacer on the buffer pattern at a crossing portion of the first and second spacers, the third spacer having a third thickness and a columnar shape, wherein the third thickness is thicker than the first thickness or the second thickness; an organic emission layer on the first electrode between adjacent buffer patterns; a second electrode on the organic emission layer and the first, second and third spacers; a second substrate facing the first substrate; and a seal pattern between peripheries of the first and second substrates.