Light-emitting device, module and electronic device

The light-emitting device addresses the limitations of existing display technologies by emitting both visible and infrared light and incorporating a light detection function, utilizing a dual light-emitting structure and micro-optical resonator for enhanced performance.

JP7682973B2Active Publication Date: 2025-05-26SEMICON ENERGY LAB CO LTD
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Patent Information

Application Number
JP2023184650
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Priority Date
2018-12-21
Filing Date
2023-10-27
Publication Date
2025-05-26
Estimated Expiration
2039-12-12

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Abstract

To provide a display apparatus that has a function of emitting visible light and infrared light and a function of detecting light.SOLUTION: There is provided a display apparatus in which a display part has a first light-emitting device, a second light-emitting device, and a light-receiving device. The first light-emitting device emits both visible light and infrared light, and the second light-emitting device emits visible light. The light-receiving device has a function of absorbing at least a part of the visible light and the infrared light. The first light-emitting device has a first pixel electrode, a first light-emitting layer, a second light-emitting layer, and a common electrode. The second light-emitting device has a second pixel electrode, a third light-emitting layer, and a common electrode. The light-receiving device has a third pixel electrode, an active layer, and a common electrode. The first light-emitting layer has a light-emitting material that emits the infrared light. The second and third light-emitting layers have light-emitting materials that emit visible light with wavelengths different from each other. The active layer has an organic compound.SELECTED DRAWING: Figure 1
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Citation Information

Patent Citations

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