Organic light emitting diode device
AssigneeSamsung Display Co., Ltd.
InventorSang-Jin Pak
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Abstract
An organic light emitting device includes an organic light emitting element and a sensor. The organic light emitting element includes an organic layer between an anode and cathode. The sensor detects a quality that provides an indication of the degradation of the organic layer of the light emitting element. The sensor may be a chemical sensor or another type of sensor. The sensor may be fixed permanently within or outside the light emitting element, and electronic measures may be taken to reduce performance loss as a result of the detected degradation of the organic layer.
Claims15
An organic light emitting device, comprising:
- an organic light emitting element including an anode, an organic layer, and a cathode;
- and
- a chemical sensor that is at least one of inside or outside of the organic light emitting element, wherein the chemical sensor is to sense an amount of outgassing gas from the organic layer or an amount of a product generated from the outgassing gas, the amount of outgassing gas or product indicative of a degradation degree of the organic layer, and wherein the chemical sensor includes:
- a transmission layer selectively permeable to the gas or product;
- a sensor to reversibly or non-reversibly interact with the permeated gas or product;
- and
- a detector to detect a change based on the interaction.
A device, comprising:
- an organic light emitter that includes an organic layer;
- and
- a hydrogen sensor to detect a quality indicative of a degree of degradation of the organic layer, wherein the quality includes an amount of outgassing gas from the organic layer or an amount of a product generated from the outgassing gas, the amount of outgassing gas or product indicative of a degradation degree of the organic layer, wherein the hydrogen sensor includes a QCM (quartz crystal microbalance) or a SAW (surface acoustic wave) sensor.
An organic light emitting device, comprising:
- an organic light emitting element including an anode, an organic layer, and a cathode;
- and
- a chemical sensor that is at least one of inside or outside of the organic light emitting element, wherein the chemical sensor is to sense an amount of outgassing gas from the organic layer or an amount of a product generated from the outgassing gas, the amount of outgassing gas or product indicative of a degradation degree of the organic layer, and wherein the chemical sensor includes a QCM (quartz crystal microbalance) sensor or a SAW (surface acoustic wave) sensor.
Dependencies are inferred from the claim text.