Method for recycling waste mobile phone to make anti-peeping password input device
A technology for password input and mobile phone recycling, applied in the protection of internal/peripheral computer components, etc., can solve the problems of inability to apply payment systems, high cost of anti-peeping liquid crystal display devices, and achieve the effects of reducing costs, improving confidentiality, and payment security.
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[0017] The present invention will be further elaborated below in combination with specific embodiments.
[0018] A method for making an anti-peeping password input device by recycling waste mobile phones, comprising the following steps:
[0019] Step 1: Take the old smart phone, remove the polarizer on the top layer of the LCD screen of the phone, so that the screen is displayed as a white screen;
[0020] Step 2: Take the black glass lens, fix the bottom on one side of the LCD screen of the mobile phone, and form an angle of 70~110 degrees with the plane where the LCD screen of the mobile phone is located;
[0021] Step 3: Utilizing the characteristics that the reflectivity of the black glass lens is related to the polarization state, the image formed in the black glass mirror can present the images and text on the display screen of the mobile phone. With the random keyboard and touch screen of the mobile phone, it can be used as an anti-peeping password Input device, in ord...
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