A touchless user interface based on a near-infrared-sensitive transparent optical imager

被引：32

作者：

Kamijo, Takeshi ^{[1
]}

van Breemen, Albert J. J. M. ^{[2
]}

Ma, Xiao ^{[3
]}

Shanmugam, Santhosh ^{[2
,5
]}

Bel, Thijs ^{[2
]}

de Haas, Gerard ^{[2
]}

Peeters, Bart ^{[2
]}

Petre, Razvan ^{[2
]}

Tordera, Daniel ^{[2
,6
]}

Verbeek, Roy ^{[2
]}

Akkerman, Hylke B. B. ^{[2
]}

Hagelsieb, Luis Moreno ^{[4
]}

de Roose, Florian ^{[4
]}

Lieberman, Itai ^{[4
]}

Yamaguchi, Fujito ^{[1
]}

Janssen, Rene A. J. ^{[3
]}

Meulenkamp, Eric A. A. ^{[2
,7
]}

Kronemeijer, Auke Jisk ^{[2
]}

Gelinck, Gerwin H. H. ^{[2
,3
]}

机构：

[1] Asahi Kasei Corp, PED Project, Mkt & Innovat, Fuji, Japan

[2] Dutch Org Appl Sci Res, TNO Holst Ctr, Eindhoven, Netherlands

[3] Eindhoven Univ Technol, Dept Appl Phys, Eindhoven, Netherlands

[4] Imec, Leuven, Belgium

[5] Philips Engn Solut, Eindhoven, Netherlands

[6] Univ Valencia, Inst Ciencia Mol ICMol, Paterna, Spain

[7] DEMCON Adv Mechatron Bst BV, DEMCON, Best, Netherlands

来源：

NATURE ELECTRONICS | 2023年 / 6卷 / 06期

关键词：

ORGANIC PHOTODETECTORS; ELECTRODES; ACCEPTOR;

D O I：

10.1038/s41928-023-00970-8

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A transparent organic infrared photodetector array can be placed over a commercial display to provide a touchless control interface. Touchless user interfaces that are based on gestures typically rely on near-infrared cameras. However, such systems are often hampered by their limited field of view and high-accuracy calibration requirements. Here we report a touchless user interface that is based on a visually transparent near-infrared-sensitive organic photodetector array and can be used on top of a display. Optical transparency is achieved by using a printed copper grid as a bottom transparent conductive electrode and an array of patterned organic photodetector subpixels. Electro-optical modelling is used to optimize the design of the image sensor, leading to a photodetectivity of approximately 10(12) Jones at 850 nm and a high visible-light transmittance of 70%. We show that the imager can be used as a penlight-controlled and gesture-controlled touchless user interface when combined with a commercial display.

引用

页码：451 / 461

页数：11

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