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Privacy application device, method for operation thereof, and system including privacy application device

A technology for application equipment and privacy, applied in the direction of filters, instruments, optics, etc. for photographic purposes, which can solve the problems of reduced camera performance, low transmittance, and high haze levels

Pending Publication Date: 2020-11-24
APPLIED MATERIALS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Further, the PDLC material has a transmittance of 85% or less in the light-transmitting state, which reduces the performance of the camera
Additionally, PDLCs often have haze levels as high as 5% or more when in a clear state, which creates a blurring effect during camera recording

Method used

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  • Privacy application device, method for operation thereof, and system including privacy application device
  • Privacy application device, method for operation thereof, and system including privacy application device
  • Privacy application device, method for operation thereof, and system including privacy application device

Examples

Experimental program
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Effect test

Embodiment approach 700

[0112] The method 700 from a starting point 701 includes the steps of: applying an alternating voltage 702 to the electrophoretic or magnetophoretic medium; controlling at least one of the amplitude and duration of the applied voltage 703; and maintaining and / or removing the applied Voltage 704. Method 700 ends at endpoint 705 .

[0113] According to some embodiments, which may be combined with other embodiments described herein, the step of controlling the amplitude of the applied voltage 703 when switching the privacy application device 100 to a transparent state or a non-transparent state may include the following steps: A voltage is interpreted to be applied to selected electrodes, thereby switching the privacy application device 100 to a transparent state or a non-transparent state.

[0114] Removing the AC voltage 704 keeps the privacy application device in a stable non-transparent state. Due to this property of the electrophoretic or magnetophoretic medium 102, the no...

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PUM

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Abstract

The present disclosure provides a privacy application device and a method for operating the same. The privacy application device comprises an electro- or magnetophoretic medium and a controller, wherein the privacy application device is switchable between a transparent state and a non-transparent state. The method for operating the privacy application device comprises applying an alternating voltage to the electro- or magnetophoretic medium, controlling at least one of the amplitude and duration of the voltage to switch the privacy application device between a transparent state and a non- transparent state, and removing the voltage.

Description

technical field [0001] Embodiments of the present disclosure relate to a privacy application device, a method for operating a privacy application device, a system including a privacy application device, and its use in a camera unit. Embodiments of the present disclosure relate in particular to methods and apparatus used in privacy applications, particularly in relation to methods and apparatus used in privacy shutters for video cameras. Background technique [0002] Privacy and security are becoming increasingly important topics in the design of electronic devices. Built-in cameras are ubiquitous in many electronic devices, including mobile phones, tablet computers, and portable computers, thereby introducing privacy and security concerns related to unauthorized access to the cameras. [0003] Various devices and methods exist for protecting users from unauthorized access to cameras in electronic devices. [0004] One such device is a mechanical shutter that includes an op...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/167G03B11/00G03B11/04
CPCG02F1/167G02F1/1676G03B11/043G03B11/00G02F1/16757G02F1/1681G02F2001/1678
Inventor 雷纳·德穆斯
Owner APPLIED MATERIALS INC