Organic electroluminescence display and method of fabricating the same

A method of fabricating an organic electroluminescence display, comprising the steps of:

• (a) forming a plurality of stripe type first electrodes on a substrate;
• (b) forming an insulating layer on the substrate including the first electrodes;
• (c) patterning the insulating layer to form a lattice type first insulating pattern in a first area crossing with the first electrodes and a second area between the first electrodes;
• (d) carrying out an image reversal on the first insulating pattern on the first area;
• (e) etching an upper portion of the first insulating pattern on the second area to form a second insulating pattern;
• (f) forming a plurality of organic light-emitting layers on the first electrodes;
• and
• (g) forming a plurality of second electrodes on the organic light-emitting layers,
• wherein the step (d) includes the steps of:
• exposing the first insulating pattern while aligning one side of a light-transmitting area of an exposure mask with an inner portion of the first insulating pattern on the first area and the other side of the light-transmitting area with an outer portion of the first insulating pattern on the first area;
• diffusing an image reversal base catalyst containing an amine group into the first insulating pattern;
• and
• carrying out the image reversal on the exposed first insulating pattern on the first area by performing a baking process.

A method of fabricating an organic electroluminescence display comprising the steps of:

• (a) forming a plurality of stripe type first electrodes on a substrate;
• (b) forming an insulating layer on the substrate including the first electrodes;
• (c) forming a lattice type first insulating pattern in a first area crossing with the first electrodes and a second area between the first electrodes by patterning the insulating layer;
• (d) exposing the first insulating pattern while aligning one side of a light-transmitting area of an exposure mask with an inner portion of the first insulating pattern on the first area and the other side of the light-transmitting area with an outer portion of the first insulating pattern on the first area;
• (e) carrying out an image reversal by performing a heat treatment on the exposed first insulating pattern on the first area;
• (f) forming an exposed photoresist at an upper portion of the first insulating pattern on the second area and an upper portion of both sides of the first insulating pattern on the first area by carrying out a flood exposure;
• (g) forming a second insulating pattern in a way that the exposed insulating layer is removed by a developing process;
• (h) forming a plurality of organic light-emitting layers on the first electrodes;
• and
• (i) forming a plurality of second electrodes on the organic light-emitting layers.

A method of fabricating an organic electroluminescence display comprising the steps of:

• (a) forming a plurality of stripe type first electrodes on a substrate;
• (b) forming an insulating layer on the substrate including the first electrodes;
• (c) forming a lattice type first insulating pattern in a first area crossing with the first electrodes and a second area between the first electrodes by patterning the insulating layer;
• (d) exposing the first insulating pattern on the first area;
• (e) diffusing an image reversal base catalyst into the first insulating pattern;
• (f) carrying out an image reversal on the exposed first insulating pattern on the first area by performing a baking process;
• (g) forming an exposed photoresist at an upper portion of the first insulating pattern on the second area and an upper portion of both sides of the first insulating pattern on the first area by carrying out a flood exposure;
• (h) forming a second insulating pattern in a way that the exposed insulating layer is removed by a developing process;
• (i) forming a plurality of organic light-emitting layers on the first electrodes;
• and
• (j) forming a plurality of second electrodes on the organic light-emitting layers,
• wherein the step (d) includes exposing the first insulating pattern while aligning one side of a light-transmitting area of an exposure mask with an inner portion of the first insulating pattern on the first area and the other side of the light-transmitting area with an outer portion of the first insulating pattern on the first area.

A method of fabricating an organic electroluminescence display comprising the steps of:

• (a) forming a plurality of stripe type first electrodes on a substrate;
• (b) forming an insulating layer on the substrate including the first electrodes;
• (c) forming a lattice type first insulating pattern in a first area crossing with the first electrodes and a second area between the first electrodes by patterning the insulating layer;
• (d) exposing the first insulating pattern on the first area by using an exposure mask having a shield area for shielding a portion corresponding to a central portion of the first insulating pattern of the first area and a light-transmitting area at a portion corresponding to a peripheral portion thereof;
• and
• (e) carrying out an image reversal by performing a heat treatment on the peripheral portion of the exposed first insulating pattern on the first area;
• (f) forming an exposed photoresist at an upper portion of the first insulating pattern on the second area and an upper central portion and an upper portion of both sides of the first insulating pattern on the first area by carrying out a flood exposure;
• (g) forming a second insulating pattern in a way that the exposed insulating layer is removed by a developing process;
• (h) forming a plurality of organic light-emitting layers on the first electrodes;
• and
• (i) forming a plurality of second electrodes on the organic light-emitting layers,
• wherein the step (d) includes exposing the first insulating pattern while aligning one side of a light-transmitting area of an exposure mask with an inner portion of the first insulating pattern on the first area and the other side of the light-transmitting area with an outer portion of the first insulating pattern on the first area.