CN220208041U - Peep-proof cipher input display equipment - Google Patents

Abstract

The utility model relates to the field of liquid crystal display, and discloses a peep-proof password input display device, which comprises peep-proof glasses and a password input device; the password input device is sequentially provided with a circuit assembly for randomly distributing key positions, a touch panel for receiving user input signals and a liquid crystal display screen for displaying the key positions from inside to outside, wherein the circuit assembly is electrically connected with the touch panel and the liquid crystal display screen; the liquid crystal display screen sequentially comprises a backlight assembly, a first polaroid, a first glass substrate, a liquid crystal molecular layer, a color film and a second glass substrate from inside to outside; the peep-proof glasses comprise a second polaroid attached to the lenses of the peep-proof glasses, and the second polaroid can display key positions in a matched mode with the first polaroid. The peep-proof password input display device has the characteristic of high confidentiality.

Description

Peep-proof cipher input display equipment

Technical Field

The utility model relates to the field of liquid crystal display, in particular to peep-proof password input display equipment.

Background

Many situations in life require that we enter passwords for identity verification, such as automated teller machines (ATM, automated Teller Machine), mobile phone self-service payment terminals, access control systems, and the like. While the security of the password use is critical to the security system.

The conventional password input device is generally a digital key lock and the like, and the password input system is mostly used for realizing the password input through the operation of a fixed keyboard on a password input device or the operation of a virtual keyboard displayed on a touch panel device; some occasions can display virtual keyboards with randomly distributed key positions on the touch panel, but other people in the environment can acquire the password information input by the user by peeping the picture displayed on the liquid crystal touch screen when the password is input.

Therefore, in particular places such as military industry, banks, security units, etc. where a password is required to be input, a password input device with higher security is required.

Disclosure of Invention

In order to solve the problem of poor confidentiality of password input equipment in the prior art, the utility model provides the peep-proof password input display equipment, which has the characteristic of high confidentiality.

The utility model provides a peep-proof password input display device, which comprises peep-proof glasses and a password input unit;

the password input device is sequentially provided with a circuit assembly for randomly distributing key positions, a touch pad for receiving user input signals and a liquid crystal display for displaying the key positions from inside to outside, wherein the circuit assembly is electrically connected with the touch pad and the liquid crystal display;

the liquid crystal display screen sequentially comprises a backlight assembly, a first polaroid, a first glass substrate, a liquid crystal molecular layer, a color film and a second glass substrate from inside to outside;

the peep-proof glasses comprise a second polaroid attached to the lenses of the peep-proof glasses, and the second polaroid can be matched with the first polaroid to display the key positions.

Preferably, the deflection angles of the second polarizer and the first polarizer are mutually perpendicular.

Preferably, the circuit assembly includes a processor capable of randomly generating a key position distribution picture, and the processor is capable of controlling the liquid crystal display to display the key position distribution picture.

Preferably, when the user inputs a password, the processor controls the liquid crystal display to display feedback on the user operation.

Preferably, the password input unit further comprises a panel which is covered outside the liquid crystal display screen and used for protecting the liquid crystal display screen.

Preferably, the password input unit further comprises a structural frame, and the structural frame is matched with the panel to complete positioning and supporting of the circuit assembly, the touch pad and the liquid crystal display.

Preferably, the key position distribution picture comprises keys with numbers and or letters.

Preferably, the key position distribution picture comprises keys for confirmation, return and deletion.

According to the above technical scheme, the circuit assembly 1 is electrically connected with the touch panel 3 and the liquid crystal display 2, and inputs the key position distribution picture to the touch panel 3 and the liquid crystal display 2.

When a user needs to input a password, the light emitted by the backlight assembly 21 passes through the first polarizer 22, then passes through the liquid crystal molecular layer 24, and then is emitted outwards through the color film 25, the light emitted by the color film 25 can display a normal key position distribution picture only through the selection of the second polarizer 6, and the second polarizer 6 is arranged on the peep-proof glasses, so that the user can observe the key position distribution picture displayed on the password input device only by wearing the peep-proof glasses.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model, and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the description serve to explain, without limitation, the utility model. In the drawings:

FIG. 1 is a schematic diagram of the configuration of a password input of a preferred embodiment;

FIG. 2 is a schematic view showing the structure of a liquid crystal display according to a preferred embodiment;

fig. 3 is a key position distribution screen of a preferred embodiment.

Description of the reference numerals

1. Circuit assembly 2 liquid crystal display screen

3. Touch panel 21 backlight assembly

22. First polarizer 23 first glass substrate

24. Liquid crystal molecular layer 25 color film

26. Second glass substrate 6 second polarizer

5. Panel 4 structural frame

Detailed Description

The following describes specific embodiments of the present utility model in detail with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the utility model, are not intended to limit the utility model.

In the present utility model, unless otherwise indicated, terms such as "facing, facing away, horizontal, inclined, front, rear, end" and the like are used to denote the orientation of the term in a conventional use state or are commonly understood by those skilled in the art, and should not be construed as limiting the term.

Referring to fig. 1 to 3, a privacy cipher input display apparatus includes privacy glasses and a privacy inputter;

the password input device is sequentially provided with a circuit assembly 1 for randomly distributing key positions, a touch panel 3 for receiving user input signals and a liquid crystal display screen 2 for displaying the key positions from inside to outside, wherein the circuit assembly 1 is respectively and electrically connected with the touch panel 3 and the liquid crystal display screen 2;

the liquid crystal display 2 includes, in order from inside to outside, a backlight assembly 21, a first polarizer 22, a first glass substrate 23, a liquid crystal molecular layer 24, a color film 25, and a second glass substrate 26;

the peep-proof glasses comprise a second polaroid 6 attached to the lenses of the peep-proof glasses, and the second polaroid 6 can display key positions in a matched mode with the first polaroid 22.

Through implementation of the above technical solution, the circuit assembly 1 provides the touch panel 3 and the liquid crystal display 2 with a key position distribution picture.

When the light rays of the backlight assembly 21 are emitted, the light rays firstly pass through the first polaroid 22, then pass through the liquid crystal molecular layer 24 and then are emitted outwards through the color film 25, the emitted light rays can display normal key position distribution pictures only by selecting the second polaroid 6, and the second polaroid 6 is arranged on the peep-proof glasses, so that a user can observe the key position distribution pictures displayed on the password input device only by wearing the peep-proof glasses.

If the liquid crystal display screen 2 needs to normally display pictures, a polarizer is required to be arranged up and down, and the deflection angles of the two polarizers are mutually perpendicular. Under the action of the two polarizers with mutually perpendicular deflection angles, the light of the backlight assembly 21 cannot pass through the liquid crystal display 2, but the liquid crystal display 2 is provided with a liquid crystal molecular layer 24 between the two polarizers, the circuit assembly 1 applies an electric field into the liquid crystal molecular layer 24, the liquid crystal molecules in the electric field are subjected to specific deflection under the action of the electric field, and the light of the backlight assembly 21 can pass through the deflection action of the liquid crystal molecular layer on the light, so that part of the light passes through the second polarizer 6 and displays pictures required to be displayed by the circuit assembly 1.

In the process, the circuit assembly 1 controls the deflection of the liquid crystal molecules within the color patch by applying an electric field to the liquid crystal molecules within the different color patch. The light passing through the first polaroid 22 is deflected and enters the color film 25, after passing through the color film 25, the color blocks emit red, green and blue light with different brightness according to different angles of light deflection, the three-color light of each color block is mixed and screened by the second polaroid 6 for the light with different angles, each color block displays the color to be displayed of the color block, and each color block displays different colors and displays required patterns according to certain regular arrangement, so that the liquid crystal display screen 2 displays key position distribution pictures.

Because the upper polarizer of the liquid crystal display 2, namely the second polarizer 6 is moved to the peep-proof glasses, when the circuit component 1 still controls the liquid crystal display 2 to display the key position distribution picture, the user cannot see the key position distribution picture when watching the liquid crystal display 2 with naked eyes because the liquid crystal display 2 lacks the second polarizer 6, and only one white light can be seen. Only the person wearing the peep-proof glasses provided with the second polarizer 6 can see the key position distribution picture displayed on the liquid crystal display 2.

In this embodiment, it is preferable that the deflection angles of the second polarizer 6 and the first polarizer 22 are perpendicular to each other.

By sticking the second polarizer 6 to the peep-proof glasses, the function of targeted display of the pictures displayed by the liquid crystal display screen 2 is realized, so that the second polarizer 6 positioned on the peep-proof glasses is perpendicular to the first polarizer 22 on the liquid crystal display screen 2 in deflection angle, and the pictures required to be displayed by the liquid crystal display screen 2 can be displayed most clearly.

In this embodiment, the circuit assembly 1 preferably includes a processor capable of randomly generating a key position distribution picture, and the processor is capable of controlling the liquid crystal display 2 to display the key position distribution picture.

When the user needs to input the password, the processor randomly distributes keys containing numbers or letters and generates a key position distribution picture, and the circuit component 1 inputs the key position distribution picture into the liquid crystal display 2 so as to enable the key position distribution picture to be displayed on the liquid crystal display 2.

The number key pad shown in fig. 3 can be displayed on the password input device, and each time the key position is automatically generated, so that other people in the environment cannot confirm the password being input through the position. Meanwhile, the key position distribution picture is not limited to the numbers of 1-9, and can also contain numbers, letters, symbols or a combination thereof.

In this embodiment, preferably, the processor controls the liquid crystal display 2 to display feedback on the user's operation when the user inputs a password.

After the user inputs a password, the liquid crystal display 2 will respond to the input action so that the user knows that the input has succeeded.

The response may be configured to display a corresponding pattern at the input position of the key in response to the input, or may be configured to add a display digit of the inputted password in the password input box, or the like.

In this embodiment, the password input preferably further includes a panel 5 covering the outside of the liquid crystal display 2 for protecting the liquid crystal display 2.

In this embodiment, the code input preferably further includes a structural frame 4, and the structural frame 4 cooperates with the panel 5 to position and support the circuit assembly 1, the touch panel 3, and the liquid crystal display 2.

In this embodiment, it is preferable that keys including numerals and or letters are included in the key position distribution screen.

In this embodiment, it is preferable that the key position distribution screen includes keys for confirmation, return, and deletion.

The user can observe the key position distribution picture displayed by the liquid crystal display 2 only when wearing the special peep-proof glasses, and accordingly, other people in the environment cannot observe the key position distribution picture displayed by the liquid crystal display 2 because the special peep-proof glasses are not worn, so that the password cannot be guessed according to the input key position when the password is input.

Moreover, the peep-proof glasses are in one-to-one correspondence with the liquid crystal display 2, that is, the peep-proof glasses of different peep-proof password input display devices cannot be used commonly, because the second polarizer 6 attached to the peep-proof glasses must be matched with the first polarizer 22 located on the liquid crystal display 2, so that a user can only see the picture displayed on the liquid crystal display 2.

The best observation effect on the picture displayed by the liquid crystal display 2 can be realized when the deflection angles of the second polaroid 6 attached to the peep-proof glasses and the first polaroid 22 positioned on the liquid crystal display 2 are mutually perpendicular, and because the liquid crystal display 2 is fixed, the second polaroid 6 can be preset to be the angle that the maximum probability of being perpendicular to the first polaroid 22 after being worn by a user, and the second polaroid 6 is probably not positioned at the preset angle during actual use of the user, so that the key position distribution picture observed by the user can be unclear, and at the moment, the user can make the observed picture clearer by adjusting the head posture.

The preferred embodiments of the present utility model have been described in detail above with reference to the accompanying drawings, but the present utility model is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present utility model within the scope of the technical concept of the present utility model, and all the simple modifications belong to the protection scope of the present utility model.

In addition, the specific features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations are not described further.

Moreover, any combination of the various embodiments of the utility model can be made without departing from the spirit of the utility model, which should also be considered as disclosed herein.

Claims (8)

1. The peep-proof password input display device is characterized by comprising peep-proof glasses and a password input unit;

the password input device is sequentially provided with a circuit assembly (1) for randomly distributing key positions, a touch pad (3) for receiving user input signals and a liquid crystal display screen (2) for displaying the key positions from inside to outside, wherein the circuit assembly (1) is electrically connected with the touch pad (3) and the liquid crystal display screen (2);

the liquid crystal display screen (2) sequentially comprises a backlight assembly (21), a first polaroid (22), a first glass substrate (23), a liquid crystal molecular layer (24), a color film (25) and a second glass substrate (26) from inside to outside;

the peep-proof glasses comprise a second polaroid (6) attached to lenses of the peep-proof glasses, and the second polaroid (6) can be matched with the first polaroid (22) to display the key positions.

2. The privacy cipher input display device of claim 1, wherein the deflection angles of the second polarizer (6) and the first polarizer (22) are perpendicular to each other.

3. The privacy cipher input display device of claim 1, wherein the circuit component (1) comprises a processor capable of randomly generating a key position distribution picture, and the processor is capable of controlling the liquid crystal display (2) to display the key position distribution picture.

4. A privacy password input display device as claimed in claim 3, wherein the processor controls the liquid crystal display (2) to display feedback on user operation when a user inputs a password.

5. The privacy cipher input display apparatus of claim 1, wherein the privacy cipher input device further comprises a panel (5) covering the liquid crystal display (2) for protecting the liquid crystal display (2).

6. The privacy cipher input display device of claim 5, further comprising a structural frame (4), wherein the structural frame (4) cooperates with the panel (5) to complete the positioning and support of the circuit assembly (1), touch pad (3) and liquid crystal display (2).

7. The privacy key input display apparatus of claim 3, wherein the key position distribution screen comprises keys of numbers and/or letters.

8. The privacy key input display apparatus of claim 3, wherein the key position distribution screen includes confirm, return and delete keys.