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Title:
ELECTRICALLY-CONTROLLABLE COLOR FILTER ARRAY BASED ON PHASE-CHANGE MATERIAL, AND ARTIFICIAL VISION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2024/087244
Kind Code:
A1
Abstract:
An electrically-controllable color filter array based on a phase-change material, and an artificial vision system. The filter array comprises a plurality of color filter units; each color filter unit comprises a metal layer (10), a bottom transparent conductive layer (20), a chalcogenide phase-change material layer (30), and a top transparent conductive layer (40); the red, green and blue filter function of each color filter unit is adjusted according to the thickness of the bottom transparent conductive layer (20) and the top transparent conductive layer (40); in the color filter units arranged in the array, the top transparent conductive layers (40) in each row of color filter units are connected to a bit line (BL), and the bottom transparent conductive layers (20) in each column of color filter units are connected to a word line (WL); the state transition of the chalcogenide phase-change material layer (30) in each color filter unit is realized by adjusting an electric pulse applied to the BL and the WL where the electric pulse is present. The present invention has the effects of non-volatility, oxidation resistance, and low crosstalk while having a stable structural color, integrates the filter and storage functions, and can effectively improve the processing speed of an image sensor.

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Inventors:
HE QIANG (CN)
CUI MENGQIAN (CN)
XIE YUXIN (CN)
TAN QINGSHAN (CN)
TONG HAO (CN)
MIAO XIANGSHUI (CN)
Application Number:
PCT/CN2022/129593
Publication Date:
May 02, 2024
Filing Date:
November 03, 2022
Export Citation:
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Assignee:
HUAZHONG UNIV OF SCIENCE AND TECHNOLOGY (CN)
International Classes:
H04N23/55; G02B27/09; H04N5/72; H04N25/44
Attorney, Agent or Firm:
WUHAN HUAZHIYU INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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