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Anti-peeping anti-shooting system for screen

A technology of anti-shooting and screen, applied in the direction of optical components, optics, instruments, etc., can solve the problems of inconvenient use

Inactive Publication Date: 2018-09-21
BEIJING HANGXING MACHINERY MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Patent CN103390 invented a method to prevent the screen from taking photos, but it is not convenient to display only a few words near the cursor during use

Method used

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  • Anti-peeping anti-shooting system for screen
  • Anti-peeping anti-shooting system for screen
  • Anti-peeping anti-shooting system for screen

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Embodiment Construction

[0025] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0026] The invention proposes a screen anti-peeping and anti-photographing system, which encrypts the working image transmitted to the video image interference device, and then sends it to a polarized liquid crystal display for display. The screen anti-spy and anti-photographing system uses a high-speed digital signal processing module as the central processing unit to realize complex text font size recognition and generation of interference images.

[0027] Such as figure 1 Shown is a schematic diagram of the system. It can be seen from the figure that a screen anti-spy and anti-photographing system includes a digital signal processing module, an encryption module, a polarized liquid crystal display module and polarized glasses; the screen resolution of the polarized liquid crystal display module is greater than 4k.

[0028] Digital signal pro...

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Abstract

The invention provides an anti-peeping anti-shooting system for a screen, and relates to a field for protecting working images by using interference images. The system comprises a digital signal processing module, an encryption module, a polarized liquid crystal display module and polarized glasses. The digital signal processing module transmits a working image to the encryption module. An interference image is generated and transmitted to the encryption module. The encryption module carries out pixel matrix division on the working image and the interference image, encrypts the working image and the interference image after pixel matrix division to generate encrypted images, and sends the encrypted images to the polarized liquid crystal display module. The polarized liquid crystal displaymodule displays the encrypted images. A worker wears the polarized glasses to filter the interference image in the encrypted images to acquire the working image. According to the invention, the workerwears the special glasses to observe the working image displayed on the screen, while other people cannot observe the working image; and a general camera recording device cannot record the working image.

Description

technical field [0001] The invention relates to the field of protecting working images by utilizing disturbing images, in particular to a screen anti-peeping and anti-photographing system. Background technique [0002] Polarized 3D technology uses the principle that light has a "vibration direction" to decompose the original image. By adding a polarizer on the display screen, two images with different polarization directions can be sent to the viewer. When the image passes through polarized glasses, Since each lens of the polarized glasses can only receive pictures in one polarization direction, the left and right eyes of a person will receive two sets of pictures, and finally the three-dimensional image will be synthesized by the brain. [0003] The patent CN103390 has invented a method for preventing the screen from being photographed, but it is inconvenient to only display a few words near the cursor during use. Contents of the invention [0004] The purpose of the pre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B27/22
CPCG02B30/27
Inventor 何竞择丁洁徐圆飞刘晓超王俊峰廖继明温子宽
Owner BEIJING HANGXING MACHINERY MFG CO LTD
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