Light detection device

JP7863447B2Active Publication Date: 2026-05-21SONY SEMICON SOLUTIONS CORP
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Patent Information

Application Number
JP2022062598
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2022-04-04
Publication Date
2026-05-21
Estimated Expiration
2042-04-04

AI Technical Summary

Technical Problem

Existing photodetection devices require improvements in detection performance, particularly in terms of sensitivity and resolution for different wavelength ranges.

Method used

The photodetection device incorporates a pixel arrangement with multiple first pixels surrounded by second and third pixels, each equipped with specific photoelectric conversion units for different wavelengths, and utilizes a spectroscopic unit with nanostructures to guide light to the appropriate conversion units, enhancing sensitivity and resolution.

Benefits of technology

The device achieves high sensitivity and improved resolution by efficiently guiding and converting light of specific wavelengths, resulting in enhanced detection performance.

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Abstract

To provide a light detection device having excellent detection performance.SOLUTION: A light detection device of one embodiment disclosed herein includes: a plurality of first pixels each including a light-dispersing section including a structure having a dimension equal to or less than a wavelength of incident light and a first photoelectric conversion section that photoelectrically converts light of a first wavelength transmitted through the light-dispersing section; a plurality of second pixels provided among the plurality of first pixels and each including a second photoelectric conversion section that receives light of a second wavelength to perform photoelectric conversion; and a plurality of third pixels provided among the plurality of first pixels and each including a third photoelectric conversion section that receives light of a third wavelength to perform photoelectric conversion.SELECTED DRAWING: Figure 3
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Citation Information

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  • Pixel structure and display panel

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