Indication device
The display device integrates light-receiving and light-emitting elements with a resin and light-shielding layer to enhance light detection and display quality, addressing limitations in existing devices by improving sensitivity and reducing stray light interference.
JP7864226B2Active Publication Date: 2026-05-22SEMICON ENERGY LAB CO LTD
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Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- SEMICON ENERGY LAB CO LTD
- Filing Date
- 2025-04-18
- Publication Date
- 2026-05-22
AI Technical Summary
Technical Problem
Existing display devices lack integrated light detection functionality, convenience, high display quality, and sensitivity, limiting their multifunctionality.
Method used
A display device configuration with a light-receiving element and a light-emitting element, including a resin layer and a light-shielding layer, is designed to enhance light detection capabilities while minimizing stray light interference, thereby improving convenience, quality, and functionality.
Benefits of technology
The configuration enables a display device with integrated light detection, enhanced sensitivity, and improved display quality by reducing noise and increasing sensor sensitivity and imaging resolution.
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Smart Images
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Abstract
To provide a display device having an optical detection function.SOLUTION: A display device has a first substrate, a second substrate, a light-receiving element, a light-emitting element, a resin layer, and a light-shielding layer. The light-receiving element, the light-emitting element, the resin layer and the light-shielding layer are positioned between the first substrate and the second substrate, respectively. The light-receiving element has a first pixel electrode on the first substrate, an active layer on the first pixel electrode, and a common electrode on the active layer. The light-emitting element has a second pixel electrode on the first substrate, a first light-emitting layer on the second pixel electrode, and a common electrode on the first light-emitting layer. The resin layer and the light-shielding layer are positioned between the common electrode and the second substrate, respectively. The resin layer has a part overlapping the light-emitting element. The light-shielding layer has a part positioned between the common electrode and the resin layer. The resin layer has an opening overlapping the light-receiving element or is provided in an island shape. At least a part of light having passed through the second substrate is incident on the light-receiving element without through the resin layer.SELECTED DRAWING: Figure 1
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