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Infrared-visible light image up-conversion device and imaging method based on semiconductor quantum dots and liquid crystals

An infrared image and visible light technology, applied in the direction of instruments, optics, measuring devices, etc., can solve the problems that photodetection devices and photoelectric display devices cannot be integrated on the same substrate, and the structure and preparation process are not compatible, so as to achieve low preparation cost, Effects of improving light detection sensitivity and reducing weight and thickness

Active Publication Date: 2021-07-09
SOUTHEAST UNIV
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Problems solved by technology

Since the basic functional materials, basic device structures and fabrication processes of existing photodetection devices and photoelectric display devices are not compatible, it is impossible to integrate photodetection devices and photoelectric display devices on the same substrate

Method used

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  • Infrared-visible light image up-conversion device and imaging method based on semiconductor quantum dots and liquid crystals
  • Infrared-visible light image up-conversion device and imaging method based on semiconductor quantum dots and liquid crystals
  • Infrared-visible light image up-conversion device and imaging method based on semiconductor quantum dots and liquid crystals

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Embodiment Construction

[0025] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0026] Such as figure 1 and figure 2 As shown, the infrared-visible light image up-conversion device based on semiconductor quantum dots and liquid crystals of the present invention includes an upper substrate 11, a visible light shielding layer 10, an infrared transparent electrode 9, a semiconductor quantum dot photoelectric active layer 8, and a visible light from top to bottom. Reflective layer 7 , liquid crystal upper alignment layer 6 , liquid crystal layer 5 , liquid crystal lower alignment layer 4 , visible light transparent electrode 3 , lower substrate 2 and polarizer 1 . Among them, 1-6 constitute the visible light image display component 13, which is the visible light image display part based on liquid crystal; 6-11 constitute the infrared image detection component 12, which is the infrared image detection part b...

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Abstract

The invention discloses an infrared-visible light image up-conversion device and an imaging method based on semiconductor quantum dots and liquid crystals. layer, liquid crystal upper alignment layer, liquid crystal layer, liquid crystal lower alignment layer, visible light transparent electrode, lower substrate, polarizer, visible light irradiation light source; an alternating voltage signal is loaded between the infrared transparent electrode and the visible light transparent electrode, so that the infrared-visible light A bias electric field is constructed in the image up-conversion device. The invention integrates the infrared detection structure and the liquid crystal display structure, realizes the direct coupling of the detection unit to the display pixels, and directly converts the incident infrared image into a visible light image; it does not need pixelated electrodes or complex detection signal reading during preparation. The output circuit and the display signal driving circuit greatly simplify the preparation process and device structure, and reduce the preparation cost.

Description

technical field [0001] The invention relates to a method and system structure for infrared image detection and formation of visible light image display, in particular to an infrared-visible light image up-conversion device and imaging method based on semiconductor quantum dots and liquid crystals. Background technique [0002] Infrared detection and imaging have important applications in security monitoring, medical diagnosis, national security, and target guidance. Because the wavelength of infrared photons is beyond the sensitive area of ​​human eyes, human eyes cannot directly observe infrared images. In the process of infrared detection and imaging, it is necessary to use detectors or sensor arrays to convert the received infrared photon signals into electrical signals, and through signal transmission and information processing, the electrical signals are converted into visible light images through the display. [0003] At present, most commercial infrared detectors use...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01J5/00G02F1/1333G02F1/1335G02F1/1343
Inventor 雷威李青张晓兵陈静王保平王昕
Owner SOUTHEAST UNIV
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