Organic electroluminescent display device and curing method of the device

An organic electroluminescent display device which includes a plurality of organic light emitting elements which form pixels in the inside of a main surface of a light transmitting substrate which is hermetically sealed to an insulating substrate in a state that the light transmitting substrate faces the insulating substrate in an opposed manner with a sealing material interposed between peripheral portions of the substrates, and in which each organic light emitting element includes a plurality of first electrodes which are formed on the main surface of the light transmitting substrate, organic light emitting layers which are formed in a state that the organic light emitting layers cover the plurality of first electrodes and have a light emitting function, and a second electrode which is formed in common over the plurality of organic light emitting elements, wherein an emitted light from the organic light emitting layer is radiated to the light transmitting substrate side by way of the first electrodes, wherein

• a thermal expansion layer is provided between the first electrode and the organic light emitting layer, and a cavity portion which is formed by evaporating the thermal expansion layer due to an absorption of laser beams of near ultraviolet rays is provided between the thermal expansion layer and the light transmitting substrate.

A method of repairing a defective pixel of an organic electroluminescent display device which includes a plurality of organic light emitting elements which form pixels in the inside of a main surface of a light transmitting substrate which is hermetically sealed to an insulating substrate in a state that the light transmitting substrate faces the insulating substrate in an opposed manner with a sealing material interposed between peripheral portions of the substrates, and in which each organic light emitting element includes a plurality of first electrodes which are formed on the main surface of the light transmitting substrate, organic light emitting layers which are formed in a state that the organic light emitting layers cover the plurality of first electrodes and have a light emitting function, and a second electrode which is formed in common over the plurality of organic light emitting elements, wherein an emitted light from the organic light emitting layer is radiated to the light transmitting substrate side by way of the first electrodes, wherein

• a peeling suppression layer is formed between the first electrode and the organic light emitting layer, and the first electrode is irradiated with laser beams of near ultraviolet rays thus evaporating a portion of the first electrode which is irradiated with the laser beams of near ultraviolet rays.

A method of repairing a defective pixel of an organic electroluminescent display device which includes a plurality of organic light emitting elements which form pixels in the inside of a main surface of a light transmitting substrate which is hermetically sealed to an insulating substrate in a state that the light transmitting substrate faces the insulating substrate in an opposed manner with a sealing material interposed between peripheral portions of the substrates, and in which each organic light emitting element includes a plurality of first electrodes which are formed on the main surface of the light transmitting substrate, organic light emitting layers which are formed in a state that the organic light emitting layers cover the plurality of first electrodes and have a light emitting function, and a second electrode which is formed in common over the plurality of organic light emitting elements, wherein an emitted light from the organic light emitting layer is radiated to the light transmitting substrate side by way of the first electrodes, wherein

• a thermal expansion layer is formed between the first electrode and the organic light emitting layer, and the first electrode is irradiated with laser beams of near ultraviolet rays thus forming a portion of the first electrode which is irradiated with the laser beams of neat ultraviolet rays into a cavity.