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Peep-proof display method based on picture masking polarization filtering

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

Active Publication Date: 2021-08-17
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

AI Technical Summary

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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  • Peep-proof display method based on picture masking 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 picture masking polarization filtering, which comprises the following steps of: covering a linear polarization display array in front of a display, and hiding screen light in linear polarization interference light which is adjustable in polarization direction and is arranged according to a masking picture; screen data being specially used for a user to filter interference light and read screen display content by using polarized glasses of which the polarization direction is orthogonal to the interference light, and using wireless communication for sharing a key for a display array and the polarized glasses in real time, so that the interference light and the polarization direction of the glasses are randomly time-varying but are always orthogonal; therefore, the peep-proof display effect that the screen information cannot be acquired by anyone except for the screen data special for the user is achieved.

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...

Claims

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Application Information

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Patent Type & Authority Applications(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