An under-display fingerprint recognition system and electronic device based on a superlens.
By using a super lens to replace some of the traditional lenses in the under-display fingerprint recognition system, the system structure is optimized, the problem of device thickness limitation is solved, and a thinner and lighter full-screen design is achieved.
CN224287538UActive Publication Date: 2026-05-26HANGZHOU NAJING TECHNOLOGY CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU NAJING TECHNOLOGY CO LTD
- Filing Date
- 2025-09-17
- Publication Date
- 2026-05-26
AI Technical Summary
Technical Problem
Traditional under-display fingerprint recognition systems are limited in their thinness due to the thickness requirements of the imaging optical system, and the traditional lens group is complex and occupies a large volume.
Method used
By replacing some traditional spherical or aspherical lenses with superlenses and combining the characteristics of planar optical elements, the system size and weight are reduced, and the system structure is optimized by the electromagnetic wave control capability of superlenses.
Benefits of technology
Effectively reducing device thickness enables a thinner and lighter under-display fingerprint recognition system, enhancing the possibilities for full-screen device designs.
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Smart Images
Figure CN224287538U_ABST
Abstract
This application relates to an under-display fingerprint recognition system and electronic device based on a superlens, belonging to the field of under-display fingerprint technology. The under-display fingerprint recognition system sequentially includes a screen, an imaging lens group, a filter, and a sensor. The imaging lens group includes at least one superlens, and the remaining lenses are one or more of superlenses, spherical lenses, aspherical lenses, and folding superlenses. The superlens consists of a substrate and a micro / nano structure layer disposed on the substrate. This application utilizes the excellent electromagnetic wave manipulation capability of the superlens to replace some traditional spherical or aspherical lenses in the imaging optical system, reducing the system volume and weight to a certain extent. Furthermore, combining the advantages of the superlens as a planar optical element, the system structure is innovated, reducing the total vertical length of the device under the screen and effectively thinning the device.
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