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Anti-spy display method based on image masking and polarization filtering

A technology of polarization filtering and display method, applied in instruments, nonlinear optics, optics, etc., can solve problems such as inability to obtain screen information, and achieve the effect of reducing the possibility

Active Publication Date: 2022-03-04
军事科学院系统工程研究院网络信息研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Based on the problems of the prior art, the technical problem to be solved by the present invention is how to achieve the anti-peeping display effect that no one can obtain the screen information except the screen data is exclusively for the user

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  • Anti-spy display method based on image masking and polarization filtering

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Embodiment Construction

[0031] The characteristics and exemplary embodiments of various aspects of the present invention will be described in detail below. In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only configured to explain the present invention, not to limit the present invention. It will be apparent to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is only to provide a better understanding of the present invention by showing examples of the present invention.

[0032] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and ...

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Abstract

The invention discloses a peep-proof display method based on image masking and polarization filtering. A linear polarization display array is covered in front of the display, and the screen light is hidden in the linear polarization interference light whose polarization direction is adjustable and arranged according to the masking image; For users to use polarized glasses whose polarization direction is orthogonal to the disturbed light to filter out the disturbed light and read the content displayed on the screen, and use wireless communication to share the key for the display array and polarized glasses in real time, so that the disturbed light and the polarized direction of the glasses change randomly but always Orthogonal, to achieve the anti-peeping display effect that no one can obtain the screen information except the screen data is exclusively for the user.

Description

technical field [0001] The invention belongs to the interdisciplinary fields of optoelectronics, display optics and wireless communication, and specifically refers to a method of covering a linearly polarized display array in front of a display and displaying a masked image and screen information in a mixed manner, and using polarization-adjustable glasses to filter out the masked image and restore it. Screen information, signal-driven quadrature synchronization by covering the polarization direction of the picture and the polarization direction of the adjustable glasses to realize the anti-peeping display technology that only the screen data is exclusively for the user to see the screen clearly, especially relates to an anti-peeping technology based on the image covering polarization filter Show method. Background technique [0002] In recent years, mobile phones and computers have gradually become the core platforms for information transmission and processing. Unprotected...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/01
CPCG02F1/0136G02F1/0102
Inventor 杨林郭凯
Owner 军事科学院系统工程研究院网络信息研究所