Liquid crystal screen safety disassembling prevention structure and method

A liquid crystal screen, security technology, applied in internal/peripheral computer component protection, nonlinear optics, instruments, etc., can solve problems such as destroying FPC

Active Publication Date: 2018-02-02
上海汇尔通信息技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] There are two main methods for the safety and anti-disassembly of the existing LCD screen. One is to firmly fix the LCD screen and the structural parts on the back of the fuselage, such as using special glue to fix it, or to install the LCD screen from the inside out to prevent illegal users from dismantling it. The LCD screen detects internal signals; the other is to attach the FPC to the LCD screen, which may destroy the FPC when the LCD

Method used

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  • Liquid crystal screen safety disassembling prevention structure and method
  • Liquid crystal screen safety disassembling prevention structure and method
  • Liquid crystal screen safety disassembling prevention structure and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] A safety tamper-proof structure of a liquid crystal screen, including a safety line, a PCB board 1, a zebra strip 2 and an FPC5, and a limiting structure 4;

[0055] The safety line is etched on the edge of the liquid crystal screen 6, drawn out through the FPC5 and extended to the position-limiting structure 4;

[0056] Since the glass at the edge of the LCD screen 6 is relatively fragile, it is easy to damage the glass at the edge of the LCD screen 6 when it is disassembled, which will trigger the safety mechanism and improve safety;

[0057] The limiting structure 4 limits the movement of the FPC5;

[0058] The other end of the FPC5 is connected to one end of the zebra strip 2;

[0059] The FPC5 is connected to the zebra strip 2 through the gold finger, the FPC5 is a flexible circuit board, and the zebra strip 2 is a block shaped conductive rubber;

[0060] The other end of the zebra strip 2 is connected to the PCB board 1;

[0061] By setting PCB contacts on the...

Embodiment 2

[0067] The difference between the second embodiment and the first embodiment is that several conductive channels are arranged in the zebra strip 2, and contacts corresponding to the conductive channels are provided. When the conductive channels are turned on, the corresponding contacts are connected to the The PCB board 1 is connected, and the conduction channel of the zebra strip 2 has different conduction resistances under different pressures;

[0068] The number of conductive channels in the zebra strip 2 is 8-10, and the above is only a specific implementation of the scheme, and changing the number of conductive channels in the zebra strip 2 also belongs to the scope of patent protection of the present invention.

Embodiment 3

[0070] The difference between the third embodiment and the first embodiment is that the limiting structure 4 is rectangular and placed horizontally, its width is adapted to the width of the FPC5, and its length is adapted to the length of the extension of the FPC5 on it;

[0071] A vertical upward extension is provided at one end of the position-limiting structure 4 along the length direction;

[0072] The end of the vertically upward extension away from the limit structure 4 is against the connection between the FPC and the edge of the liquid crystal screen 6, and the FPC5 is close to the vertically upward extension and extends to the limit structure 4;

[0073] A vertically downward extension is provided at the other end of the position-limiting structure 4 along the length direction;

[0074] The length of the vertically downward extension is less than the length of the zebra strip 2;

[0075] A protrusion is provided on the edge of the width direction on the side where t...

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PUM

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Abstract

The invention provides a liquid crystal screen safety disassembling prevention structure and method. A safety line is etched at the edge position of a liquid crystal screen, is led out by a FPC and extends to a limiting structure; the FPC is fixed by the limiting structure and a zebra bar together so as to enable the FPC to be in a tightened state; edge glass of the liquid crystal screen is used as one part of the safety disassembling prevention structure; the edge glass of the liquid crystal screen is relatively weak and the edge glass of the liquid crystal screen is easy to damage in the disassembling process to trigger a safety mechanism, and thus, the FPC is fixed by the limiting structure and the zebra bar together so as to enable the FPC to be in the tightened state, and in a case ofnot damaging the FPC, even though the liquid crystal screen safety disassembling prevention structure is known, the liquid crystal screen also cannot be disassembled from the front side; and the FPCis in the tightened state, and thus, when liquid crystals are tried to be taken out, breakage of the FPC can be caused to trigger the safety mechanism, so that the disassembling difficulty is improved; and resistance values for the zebra bar to access a circuit are different under the action of different pressures, so that safety is higher.

Description

technical field [0001] The invention relates to the technical field of safety and anti-dismantlement, in particular to a liquid crystal screen safety and anti-dismantlement structure and method. Background technique [0002] With the development of the public's mobile payment habits, password security has become an eternal pursuit in the financial industry. As far as password security is concerned, it is divided into two parts: one is for user password security, and the other is for banking system and POS machine security. Based on realistic needs, various POS manufacturers have never stopped exploring in the security field. With the popularity of large-screen POS machines, the security protection of POS screens has become an important issue. [0003] There are two main methods for the safety and anti-disassembly of the existing LCD screen. One is to firmly fix the LCD screen and the structural parts on the back of the fuselage, such as using special glue to fix it, or to ...

Claims

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Application Information

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IPC IPC(8): G06F21/86G02F1/1333
CPCG02F1/1333G06F21/86
Inventor 林培春刘荣坚
Owner 上海汇尔通信息技术有限公司
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