A mechanical dynamic password peep-proof keyboard

Abstract

The invention provides a mechanical dynamic password peep prevention keyboard. The keyboard comprises a PCB, keys located on the PCB, a break code liquid crystal display screen located on each key, and a peep prevention layer located on the break code liquid crystal display screen. The break code liquid crystal display screen located on each key is used for dynamically displaying key values of each key; and the peep prevention layer is used for making the key values of the break code liquid crystal display screen on each key only visible in a certain angle and become invisible when the angle reaches a certain fixed value.

Description

technical field [0001] The present application relates to a keyboard, in particular to a mechanical dynamic code peep-proof keyboard. Background technique [0002] At present, the keyboard has become a kind of most important computer peripheral input device, along with the rise day by day of e-commerce, the keyboard is not only used for completing normal character input, also is used as password input device more and more, is widely used in Various fields of society, such as: banking, stocks, e-commerce and other financial fields. [0003] There are usually two types of existing password input keyboards: one is a mechanical keyboard, such as a keyboard on a POS machine or an ATM machine; the other is a touch keyboard that is common in recent years. However, as a password input device, the existing keyboards have poor security. Existing keyboards usually have mechanical keyboards and dynamic keyboards, but both have certain defects: mechanical keyboards, the main defect is ...

AI Technical Summary

Problems solved by technology

Yet, as password input device, the security of existing keyboard is relatively poor

Existing keyboards usually have mechanical keyboards and dynamic keyboards, but both have certain defects: mechanical keyboards, the main defect is that the key values ​​of each key of the keyboard are fixed, such as the commonly used numeric keypad 1, such as figure 1 As shown, the arrangement order of the numbers "0-9" is unified globally. As a result, when the user enters the password, some prepared observers can analyze the password used by the user by observing the user's operation of each key on the keyboard. Even if the keyboard user intentionally blocks the password or data entered by the user, some criminals can use special processing methods to obtain some characteristics left when pressing the keys, such as the sweat secreted by fingers. Which keys are pressed, it is possible to guess the password through analysis and guessing; dynamic keyboard, usually used to dynamically display the keyboard on the touch screen, each time it is used, through a certain algorithm, dynamically generate keyboards with different arrangements, but touch The sensitivity of the screen will decrease as the number of times of use increases, which greatly reduces the effectiveness of password input

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