Insulating Pattern, Method of Forming the Insulating Pattern, Light-Emitting Device, Method of Manufacturing the Light-Emitting Device, and Lighting Device

A method for manufacturing a light-emitting device, comprising:

• forming a lower electrode layer;
• forming a first organic film having a negative photosensitivity over the lower electrode layer;
• selectively exposing a first region of the first organic film to light through a light-exposure mask;
• removing part of the first organic film, which is not exposed to light, to form a leg portion;
• forming a second organic film having a negative photosensitivity over the leg portion;
• selectively exposing a second region of the second organic film to light through the light-exposure mask, wherein the second region partly overlaps with the leg portion;
• and
• removing part of the second organic film, which is not exposed to light, to form a stage portion over the leg portion, wherein the stage portion projects beyond the leg portion in a direction parallel to the substrate;
• forming an EL layer over the stage portion and the lower electrode layer, wherein the EL layer formed over the stage portion is divided from the EL layer formed over the lower electrode layer;
• and
• forming an upper electrode layer covering the EL layer over the stage portion and the lower electrode layer, wherein the upper electrode layer formed over the stage portion is divided from the upper electrode layer formed over the lower electrode layer.

An insulating pattern comprising:

• a first portion of an insulating pattern having an insulating property;
• and
• a second portion of an insulating pattern having an insulating property over the first portion, wherein part of the second portion projects beyond the first portion in a direction parallel to a substrate,
• wherein part of a bottom surface of the second portion, which faces the substrate and is in contact with an upper edge of a side surface of the first portion is depressed.

An insulating pattern comprising:

• a first portion of an insulating pattern having an insulating property;
• and
• a second portion of the insulating pattern having an insulating property over the first portion, wherein part of the second portion projects beyond the first portion in a direction parallel to a substrate,
• wherein part of a bottom surface of the second portion, which faces the substrate, projects to be in contact with a top surface of the first portion, and
• wherein the bottom surface of the second portion and the top surface of the first portion face each other with a space therebetween.

A light-emitting device comprising:

• a first light-emitting element over a substrate;
• a second light-emitting element adjacent to the first light-emitting element over the substrate;
• and
• an insulating pattern between the first light-emitting element and the second light-emitting element over the substrate,
• wherein the first light-emitting element comprises a stacked layer of a first lower electrode layer, a first EL layer, and a first upper electrode layer,
• wherein the second light-emitting element comprises a stacked layer of a second lower electrode layer, a second EL layer, and a second upper electrode layer,
• wherein the insulating pattern comprises a leg portion and a stage portion over the leg portion,
• wherein the stage portion projects beyond the leg portion in a direction parallel to the substrate,
• wherein the first lower electrode layer and the second lower electrode layer are formed from the same layer,
• wherein the first EL layer and the second EL layer are formed from the same layer and are separated by the insulating pattern, and
• wherein the first upper electrode layer and the second upper electrode layer are formed from the same layer and are separated by the insulating pattern.