CN201698396U - Input symbol position changeable LCD (liquid crystal display) keyboard screen - Google Patents

Abstract

The utility model discloses an input symbol position changeable LCD (liquid crystal display) liquid crystal display keyboard screen, which comprises an input screen, an LCD screen and an electronic control circuit, wherein the LCD screen is connected with the electronic control circuit and controlled by the electronic control circuit to randomly display the symbol at each symbol display digit. The utility model adopts the design that the symbol position can be changed randomly and the position of keys on the keyboard can be refreshed simultaneously; and an external controller is added so as to realize the operation of the input symbol position changeable LCD keyboard. The utility model has the advantage that the security is greatly enhanced and has remarkable characteristics of novel appearance, wear resistance, easy installation, small thickness, long service life, favorable light-transmitting effect, high cost performance and the like.

Description

The LCD keyboard screen of incoming symbol change in location

Technical field

The utility model relates to the keyboard input technology field, relates in particular to the LCD keyboard screen of incoming symbol change in location.

Background technology

At present, along with the development of society, everyone in the process of using, has many times casual information or the cryptocompromise of occurring at a large amount of various information or passwords of using every day.And the input keyboard of most products in the market, adopt traditional digital fixed keyboard, as shown in Figure 1 and Figure 2, the processing mode of this mode is that the position of each button is in a fixed position all the time, when the use of reality, be prone to the situation of information-leakage.When (as POS machine class, bank cashier machine class, gate inhibition's class, safety cabinet class etc.) on some product are higher to the privacy degrees of information, adopt traditional digital fixed keyboard just to occur the situation of information or cryptocompromise easily.

When product adopts traditional digital fixed keyboard, because stationkeeping easily can be judged relevant information or password on operator's gimmick.The utility model processing mode has very big randomness, and the interface of each operation all can be different, may judge relevant information or password from operator's gimmick hardly, thereby improve confidentiality effectively, greatly.

The utility model content

Fundamental purpose of the present utility model is to overcome the defective that existing conventional keyboard input exists, and provides a kind of strong security and outward appearance novelty, the LCD keyboard screen of incoming symbol change in location simple in structure.To achieve these goals, technical solution of the present utility model provides the LCD keyboard screen of incoming symbol change in location, and described keyboard screen comprises input screen, LCD screen and electronic control circuit;

Described LCD screen is connected with described electronic control circuit, under the control of described electronic control circuit, shows position displaying symbol at random at each symbol;

Described electronic control circuit is used to control the demonstration at random of symbol on the described LCD screen, and the position of button on the described input screen of synchronous refresh.The key position of the corresponding current demonstration of symbol display position of LCD screen when triggering described button position, thereby has just been imported the current symbols displayed corresponding with described button position;

Further, described input screen can LCD shields, capacitance plate adds the LCD screen, induction type LCD shields, metallic conductor adds the LCD screen or pcb board adds the LCD screen for the resistance screen adds.

Further, described electronic control circuit comprises power circuit, governor circuit, LCD control circuit, LCD driving circuit and keyboard control circuit;

Described power circuit links to each other with described governor circuit;

Described LCD control circuit links to each other with described LCD driving circuit with described governor circuit respectively;

Described keyboard control circuit links to each other with described governor circuit.

Adopt technique scheme, beneficial effect described in the utility model is: but with the design of the position of button on stochastic transformation of incoming symbol position and the synchronous refresh keyboard, added electronic control circuit, can realize the operation of incoming symbol change in location, this advantage is that confidentiality is strengthened significantly, and evident characteristic such as outward appearance novelty, wear-resistant, easy installation, thin thickness, long service life, translucent effect are good, cost performance height.

Description of drawings

Fig. 1 is the floor map of the input keyboard of prior art;

Fig. 2 is the floor map of the another kind of input keyboard of prior art;

Fig. 3 is the LCD keyboard screen original display state plane synoptic diagram of the utility model incoming symbol change in location;

Fig. 4 is the another kind of original display state plane of the LCD keyboard screen synoptic diagram of the utility model incoming symbol change in location;

Fig. 5 is that input screen of the present utility model is that resistance shields the structural representation when adding the LCD screen;

Fig. 6 is that input screen of the present utility model is that capacitance plate adds the LCD structural representation in when screen;

Fig. 7 is the structural representation of input screen of the present utility model when shielding for induction type LCD;

Fig. 8 is that input screen of the present utility model is that metallic conductor adds the LCD structural representation in when screen;

Fig. 9 is that input screen of the present utility model is that pcb board adds the LCD structural representation in when screen

Figure 10 is an electronic control circuit structural representation of the present utility model.

Wherein 51 for resistance screen, 52 for LCD screen, 53 be that electronic control circuit, 61 shields, 83 is that electronic control circuit, 92 is that pcb board, 91 is that LCD shields for LCD for metallic conductor, 81 for electronic control circuit, 82 for induction type LCD screen, 72 for electronic control circuit, 71 for LCD screen, 63 for capacitance plate, 62.

Embodiment

The utility model is described in further detail below in conjunction with drawings and embodiments:

The LCD keyboard screen of incoming symbol change in location, keyboard screen comprise input screen, LCD screen and electronic control circuit;

The LCD screen is connected with electronic control circuit, under the control of electronic control circuit, at each symbol display position random variation displaying symbol;

Input screen comprises the corresponding a plurality of key positions of symbol display position with the LCD screen, input screen is connected with electronic control circuit, under the control of electronic control circuit, when triggering key position, thereby just can import the current symbols displayed corresponding with key position.

Electronic control circuit is used to control the demonstration at random of symbol on the LCD screen, and the position of brushing button on the input screen synchronously.

Input screen can LCD shields, capacitance plate adds the LCD screen, induction type LCD shields, metallic conductor adds the LCD screen or pcb board adds the LCD screen for the resistance screen adds.

Electronic control circuit comprises power circuit, governor circuit, LCD control circuit, LCD driving circuit and keyboard control circuit;

Power circuit links to each other with governor circuit;

The LCD control circuit links to each other with the LCD driving circuit with governor circuit respectively; Keyboard control circuit links to each other with governor circuit.

The LCD keyboard screen of the utility model incoming symbol change in location as shown in Figure 3, at the K1 on the LCD keyboard screen under the control of numeral according to electronic control circuit of K10 position (perhaps more long number), the digital random conversion 0 to 9 that opposite position shows (perhaps more long number), simultaneously electronic control circuit also will be discerned the numeral (perhaps more long number) of LCD keyboard screen correspondence 0 to 9, and the position of each button on the synchronous refresh keyboard.

The LCD keyboard screen of the utility model incoming symbol change in location as shown in Figure 4, at the K1 on the LCD keyboard screen under the control of symbol according to electronic control circuit of K26 position (perhaps more long number), opposite position symbols displayed stochastic transformation A is to Z (perhaps more long number), simultaneously electronic control circuit also will discern the symbol that corresponding A on the LCD screen arrives Z (perhaps more long number), and the position of button on each keyboard of synchronous refresh.

The LCD keyboard screen of the utility model incoming symbol change in location as shown in Figs. 5 to 7, the input screen of this keyboard screen can be that resistance screen 51 adds LCD screen 52, capacitance plate 61 adds LCD screen 62, induction type LCD screen 71.

When input screen is that resistance screen 51 is when adding LCD and shielding 52, its resistance screen 51 be installed in LCD screen 52 above, LCD screen 52 is as a kind of LCD screen 52 of incoming symbol change in location, resistance screen 51 is as a kind of input keyboard screen, K1 on LCD screen 52 to the K10 position symbol of (perhaps K1 even more long number) to the K26 position according to the control of electronic control circuit 53, opposite position symbols displayed stochastic transformation 0 to 9 (perhaps A is to Z even long number more), simultaneously electronic control circuit 53 also will discern current LCD and shield correspondence position symbols displayed on 52 (0 to 9 or A to Z even long number more), and the position of button on the synchronous refresh keyboard.

When input screen is that capacitance plate 61 is when adding LCD and shielding 62, its capacitance plate 61 be installed in LCD screen 62 above, LCD screen 62 is as a kind of LCD screen 62 of incoming symbol change in location, capacitance plate 61 shields as a kind of input keyboard, K1 on LCD screen 62 to the K10 position symbol of (perhaps K1 even more long number) to the K26 position according to the control of electronic control circuit 63, opposite position symbols displayed stochastic transformation 0 to 9 (perhaps A is to Z even long number more), simultaneously electronic control circuit 63 also will discern current LCD and shield correspondence position symbols displayed on 62 (0 to 9 or A to Z even long number more), and the position of each button on the synchronous refresh keyboard.

When input screen shields 71 for induction type LCD, its induction screen be installed in the top of LCD screen or below, the LCD screen is as a kind of LCD screen of incoming symbol change in location, induction type LCD screen 71 is as a kind of input keyboard screen, K1 on the LCD screen to the K10 position symbol of (perhaps K1 even more long number) to the K26 position according to the control of electronic control circuit 72, opposite position symbols displayed stochastic transformation 0 to 9 (perhaps A is to Z even long number more), simultaneously electronic control circuit 72 also will discern correspondence position symbols displayed on the current LCD screen (0 to 9 or A to Z even long number more), and the position of each button on the synchronous refresh keyboard.

The LCD keyboard screen of the utility model incoming symbol change in location as shown in Figure 8, this input screen is that metallic conductor 82 adds LCD and shielded 81 o'clock, metallic conductor 82 is below LCD screen 81.LCD screen 81 is as a kind of LCD screen 81 of incoming symbol change in location, metallic conductor 82 is as a kind of input keyboard, K1 on LCD screen 81 to the K10 position symbol of (perhaps K1 even more long number) to the K26 position according to the control of electronic control circuit 83, opposite position symbols displayed stochastic transformation 0 to 9 (perhaps A is to Z even long number more), simultaneously electronic control circuit 83 also will discern current LCD and shield correspondence position symbols displayed on 81 (0 to 9 or A to Z even long number more), and the position of button on the synchronous refresh keyboard.

The LCD keyboard screen of the utility model incoming symbol change in location as shown in Figure 9, this input keyboard is that pcb board 92 adds LCD and shielded 91 o'clock, pcb board 92 is below LCD screen 91.LCD screen 91 is as the LCD screen 91 of incoming symbol change in location, pcb board 92 is a kind of input keyboard screen, K1 on LCD screen 91 to the K10 position symbol of (perhaps K1 even more long number) to the K26 position according to the control of electronic control circuit, opposite position symbols displayed stochastic transformation 0 to 9 (perhaps A is to Z even long number more), simultaneously electronic control circuit also will discern current LCD and shield correspondence position symbols displayed on 91 (0 to 9 or A to Z even long number more), and the position of button on the synchronous refresh keyboard.

The LCD keyboard screen of the utility model incoming symbol change in location as shown in figure 10, this electronic control circuit comprises power circuit, governor circuit, LCD control circuit, LCD driving circuit and keyboard control circuit; Power circuit links to each other with governor circuit; The LCD control circuit links to each other with the LCD driving circuit with governor circuit respectively; Keyboard control circuit links to each other with governor circuit.

Owing to utilize the demonstration of LCD screen as sign bit, electronic control circuit control LCD screen at random demonstrates distinct symbols, and the position of current each the corresponding button of synchronous refresh.This processing mode has very big randomness, and the interface of each operation all can be different, may judge relevant information or password from operator's gimmick hardly, thereby improve confidentiality effectively, greatly.

The LCD keyboard screen of this incoming symbol change in location organically combines LCDs and key screen, and is simple in structure, and easy for installation.

The LCD keyboard screen of this incoming symbol change in location is because improve confidentiality greatly, the range of application of product is greatly expanded like this, can use on as privacy degrees high product to information such as POS machine class, bank cashier machine class, gate inhibition's class, safety cabinet classes widely.

Adopt technique scheme, beneficial effect described in the utility model is: but with the design of the position of button on digit position stochastic transformation and the synchronous refresh keyboard, added controller, can realize the operation of incoming symbol change in location, this advantage is that confidentiality is strengthened significantly, and evident characteristic such as outward appearance novelty, wear-resistant, easy installation, thin thickness, long service life, translucent effect are good, cost performance height.

Described only is preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the technology of the present invention principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.

Claims (6)

1. the LCD keyboard screen of incoming symbol change in location is characterized in that: described keyboard screen comprises input screen, LCD screen and electronic control circuit;

Described LCD screen is connected with described electronic control circuit, under the control of described electronic control circuit, shows position displaying symbol at random at each symbol;

Described input screen comprises the corresponding a plurality of buttons position, symbol demonstration position with described LCD screen, described input screen is connected with described electronic control circuit, under the control of described electronic control circuit, input shows the position symbols displayed with described button position corresponding symbol when triggering described button position;

Described electronic control circuit is used to control the demonstration at random of symbol on the described LCD screen, and the position of button on the described input screen of synchronous refresh.

2. the LCD keyboard screen of incoming symbol change in location as claimed in claim 1 is characterized in that, described input screen is that resistance screen adds that LCD screen, capacitance plate add LCD screen, induction type LCD screen, metallic conductor adds the LCD screen or pcb board adds the LCD screen.

3. the LCD keyboard screen of incoming symbol change in location as claimed in claim 2 is characterized in that, described input screen is a metallic conductor when adding LCD screen or pcb board and adding the LCD screen, and described keyboard screen is below the LCD screen.

4. the LCD keyboard screen of incoming symbol change in location as claimed in claim 2 is characterized in that, described input screen is a resistance screen when adding LCD screen or capacitance plate and adding the LCD screen, and described keyboard screen is on the LCD screen.

5. the LCD keyboard screen of incoming symbol change in location as claimed in claim 2 is characterized in that, when described input screen shields for induction type LCD, described keyboard screen on LCD screen or below.

6. the LCD keyboard screen of incoming symbol change in location as claimed in claim 1 is characterized in that: described electronic control circuit comprises power circuit, governor circuit, LCD control circuit, LCD driving circuit and keyboard control circuit;

Described power circuit links to each other with described governor circuit;

Described LCD control circuit links to each other with described LCD driving circuit with described governor circuit respectively;

Described keyboard control circuit links to each other with described governor circuit.

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