CN107657188A - A kind of safe Anti-dismounting structure of liquid crystal display and method - Google Patents
A kind of safe Anti-dismounting structure of liquid crystal display and method Download PDFInfo
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- CN107657188A CN107657188A CN201710879060.9A CN201710879060A CN107657188A CN 107657188 A CN107657188 A CN 107657188A CN 201710879060 A CN201710879060 A CN 201710879060A CN 107657188 A CN107657188 A CN 107657188A
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- liquid crystal
- crystal display
- fpc
- safe anti
- position limiting
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/70—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
- G06F21/86—Secure or tamper-resistant housings
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
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- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Nonlinear Science (AREA)
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- Software Systems (AREA)
- General Engineering & Computer Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Computer Security & Cryptography (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The present invention provides a kind of safe Anti-dismounting structure of liquid crystal display and method,Safety line is etched in liquid crystal display marginal position,Drawn by FPC and extend to position limiting structure,FPC is fixed by position limiting structure and zebra bar jointly,The FPC is set to be in tensioned state,A part of the liquid crystal display edge glass as safe Anti-dismounting structure,Because liquid crystal display edge glass is more fragile,Liquid crystal display edge glass is easily destroyed during dismounting,Trigger security mechanism,FPC is fixed by position limiting structure and zebra bar jointly,The FPC is set to be in tensioned state,In the case where not destroying FPC,Even if know the safe Anti-dismounting structure of the liquid crystal display,Also liquid crystal display can not be removed from front,Because the FPC is in tensioned state,FPC fracture triggering security mechanisms can be caused when attempting and taking out liquid crystal,So as to improve dismounting difficulty,Resistance value in the lower zebra bar access circuit of different pressures effect is different,Security is higher.
Description
Technical field
The present invention relates to safe tamper technical field, the safe Anti-dismounting structure of more particularly to a kind of liquid crystal display and method.
Background technology
With forming for popular mobile payment custom, cryptosecurity turns into an eternal pursuit in financial industry.Just
For cryptosecurity, it is divided into two parts：A part takes care of cryptosecurity for user, and another part is that banking system and POS have
Safety.Based on the demand of reality, exploration of each POS manufacturer in security fields never stops.With large-size screen monitors POS tool
Prevalence, the security protection of POS screens also become an important topic.
The existing safe tamper method of liquid crystal display mainly has two kinds, one kind be by liquid crystal display and fuselage backside structure part firmly
It is fixed, such as fixed using special glue, or liquid crystal display is installed from inside to outside, prevent illegal user from removing liquid crystal display detection
Internal signal；Another kind is that FPC is fitted on liquid crystal display, is possible to destroy FPC when removing liquid crystal display, triggers security mechanism
To protect liquid crystal display and touch screen, but all there is the shortcomings that certain in both the above method, and the former can be by force by liquid crystal display from structural member
On strip down so as to detect internal signal；The latter can be shelled after the mounting means of screen is known by high-temperature baking mode
From corresponding FPC, so as to detect internal signal, it is therefore desirable to a kind of safer Anti-dismounting structure.
The content of the invention
The technical problems to be solved by the invention are：A kind of safe Anti-dismounting structure of safer liquid crystal display and side are provided
Method.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is：
A kind of safe Anti-dismounting structure of liquid crystal display, including safety line, pcb board, zebra bar and FPC, in addition to position limiting structure；
The safety line is etched in liquid crystal display marginal position, is drawn by FPC and extends to the position limiting structure；
The position limiting structure limits the movement of the FPC；
The other end of the FPC is connected with one end of the zebra bar；
The other end of the zebra bar is connected with the pcb board；
The zebra bar compresses the FPC, the FPC is in tensioned state.
In order to solve the above-mentioned technical problem, the another technical solution that uses of the present invention for：
A kind of safe tamper method of liquid crystal display, using the above-mentioned safe Anti-dismounting structure of liquid crystal display.
The beneficial effects of the present invention are：By the way that safety line is etched in into liquid crystal display marginal position, is drawn and prolonged by FPC
The position limiting structure is extended, the position limiting structure limits the movement of the FPC, the other end of the FPC and the zebra bar
One end is connected, and the other end of the zebra bar is connected with the pcb board, and the zebra bar compresses the FPC, makes at the FPC
In tensioned state, a part of the liquid crystal display edge glass as the path, because liquid crystal display edge glass is more fragile, dismantle
When be easily destroyed liquid crystal display edge glass, trigger security mechanism, improve security, it is jointly solid by position limiting structure and zebra bar
The fixed FPC, makes the FPC be in tensioned state, in the case where not destroying the FPC, even if knowing the liquid crystal display peace
Full Anti-dismounting structure, also liquid crystal display can not be removed from front, because the FPC is in tensioned state, the meeting when attempting to take out liquid crystal
Cause FPC fracture triggering security mechanisms, so as to improve dismounting difficulty.
Brief description of the drawings
Fig. 1 is the schematic diagram of the safe Anti-dismounting structure of liquid crystal display of the embodiment of the present invention；
Fig. 2 is the schematic diagram that the safe Anti-dismounting structure of liquid crystal display of the embodiment of the present invention is symmetrically installed；
Fig. 3 is the explosive view of the safe Anti-dismounting structure of liquid crystal display of the embodiment of the present invention；
Label declaration：
1st, pcb board；2nd, zebra bar；3rd, shell；4th, position limiting structure；5、FPC；6th, liquid crystal display.
Embodiment
To describe the technology contents of the present invention, the objects and the effects in detail, below in conjunction with embodiment and coordinate attached
Figure is explained.
The design of most critical of the present invention is:Safety line is etched in liquid crystal display marginal position, is drawn and extended by FPC
To position limiting structure, FPC is fixed by position limiting structure and zebra bar jointly, the FPC is in tensioned state.
Fig. 1 to 3, a kind of safe Anti-dismounting structure of liquid crystal display, including safety line, pcb board, zebra bar and FPC are refer to, is also wrapped
Include position limiting structure；
The safety line is etched in liquid crystal display marginal position, is drawn by FPC and extends to the position limiting structure；
The position limiting structure limits the movement of the FPC；
The other end of the FPC is connected with one end of the zebra bar；
The other end of the zebra bar is connected with the pcb board；
The zebra bar compresses the FPC, the FPC is in tensioned state.
It was found from foregoing description, the beneficial effects of the present invention are：By the way that safety line is etched in into liquid crystal display marginal position,
Drawn by FPC and extend to the position limiting structure, the position limiting structure limits the movement of the FPC, the other end of the FPC
It is connected with one end of the zebra bar, the other end of the zebra bar is connected with the pcb board, described in the zebra bar compression
FPC, the FPC is set to be in tensioned state, a part of the liquid crystal display edge glass as the path, due to liquid crystal platen edge glass
Glass is more fragile, and liquid crystal display edge glass is easily destroyed during dismounting, triggers security mechanism, improves security, pass through spacing knot
Structure and zebra bar fix FPC jointly, the FPC is in tensioned state, in the case where not destroying FPC, even if knowing described
The safe Anti-dismounting structure of liquid crystal display, also liquid crystal display can not be removed from front, because FPC is in tensioned state, attempt to take out liquid crystal
When can cause FPC fracture triggering security mechanism, so as to improve dismounting difficulty.
Further, the safe Anti-dismounting structure of the liquid crystal display is arranged at least one end of liquid crystal display.
It was found from foregoing description, the safe Anti-dismounting structure of the liquid crystal display is arranged at liquid crystal display at least one end, improves and tears open
Unload difficulty.
Further, the safe Anti-dismounting structure of the liquid crystal display is arranged at the relative both ends of liquid crystal display.
It was found from foregoing description, the safe Anti-dismounting structure of the liquid crystal display is arranged at the relative both ends of liquid crystal display improved and tear open
Unload difficulty.
Further, the length of the FPC is preset.
It was found from foregoing description, FPC length is preset, it is ensured that FPC is in tensioned state after installation, easily behaviour
Make.
Further, golden finger is set in one end that the FPC is connected with zebra bar, the FPC passes through golden finger and spot
Horse bar connects.
It was found from foregoing description, the FPC is connected by golden finger with zebra bar, and operation is easier.
Further, PCB contacts are set on the pcb board, and the zebra bar passes through the PCB contacts and the PCB
Plate connects.
It was found from foregoing description, PCB contacts are set on the pcb board, the zebra bar passes through the PCB contacts and institute
Pcb board connection is stated, loose contact can be avoided the occurrence of to a certain extent.
Further, several conductive channels are provided with the zebra bar, and be provided with corresponding with the conductive channel
Contact, when conductive channel turns on, its corresponding contact is connected with pcb board；
The resistance that the conductive channel of the zebra bar turns under different pressures effect is different.
It was found from foregoing description, several conductive channels are provided with zebra bar, the conductive channel is in different pressures
The number of the lower conducting of effect is different, can cause resistance change in zebra bar access circuit so that safe Anti-dismounting structure circuit is more
Add it is sensitive, while can also be accessed according to zebra bar values of circuit resistances it is different monitor the safe Anti-dismounting structure of liquid crystal display whether by
External force is destroyed, and is improved and is cracked difficulty.
Further, the number of the conductive channel in the zebra bar is 8-10.
It was found from foregoing description, the number of the conductive channel in the zebra bar is 8-10, under different pressures effect
The resistance value accessed in circuit can be different, improve and crack difficulty.
Further, the position limiting structure is rectangular and horizontal positioned, and its width is adapted with FPC width, length with
The length of extensions of the FPC thereon is adapted；
An extension straight up is provided with the one end of the position limiting structure along its length；
The one end of the extension straight up away from position limiting structure supports the company of the FPC and the liquid crystal platen edge
Place is met, the FPC is close to the extension straight up and extends to the position limiting structure；
An extension straight down is provided with the other end of the position limiting structure along its length；
The length of the extension straight down is less than the length of the zebra bar；
A projection is respectively provided with the edge of the side that the position limiting structure contacts with the FPC in the width direction to limit
State FPC movement.
It was found from foregoing description, after the safe Anti-dismounting structure of liquid crystal display installs, the FPC can be in and tighten at the moment
State, by the way that the one end of the extension straight up away from position limiting structure is supported into the FPC and the liquid crystal platen edge
Junction, the support junction can be played a part of to a certain extent, avoid pulling force of the junction because of FPC itself
There is junction fracture and influence the normal work of circuit, it is vertical to be provided with one in the other end of the position limiting structure along its length
Downward extension, the length of the extension straight down are less than the length of the zebra bar, and ambient pressure changes
When sensing it is sensitiveer.
A kind of safe tamper method of liquid crystal display, using the above-mentioned safe Anti-dismounting structure of liquid crystal display.
Seen from the above description, the beneficial effects of the present invention are：Safety line is etched in liquid crystal display marginal position, passed through
FPC draws and extends to the position limiting structure, fixes FPC jointly by the position limiting structure and zebra bar, is in the FPC
Tensioned state, the length of the FPC can be preset, and liquid crystal display edge glass is more fragile, be easily destroyed during dismounting, so as to touch
Security mechanism is sent out, in the case where not destroying FPC, even if knowing the safe Anti-dismounting structure of liquid crystal display, also can not remove liquid from front
Crystalline substance screen, because FPC is in tensioned state, FPC fracture triggering security mechanisms can be caused when attempting and taking out liquid crystal, improve dismounting
Difficulty, several conductive channels are provided with zebra bar, the resistance that the conductive channel turns under different pressures effect is not
Together, resistance change in zebra bar access circuit can be caused so that safe Anti-dismounting structure circuit is sensitiveer, while can also basis
Zebra bar access values of circuit resistances is different to monitor whether the safe Anti-dismounting structure of liquid crystal display destroys by external force, and security is more
It is high.
Embodiment one
A kind of safe Anti-dismounting structure of liquid crystal display, including safety line, pcb board 1, zebra bar 2 and FPC5, in addition to position limiting structure
4；
The safety line is etched in the marginal position of liquid crystal display 6, is drawn by FPC5 and extends to the position limiting structure 4；
The edge glass of liquid crystal display 6 is easily destroyed because the edge glass of liquid crystal display 6 is more fragile, during dismounting, causes triggering to be pacified
Full mechanism, improves security；
The position limiting structure 4 limits the movement of the FPC5；
The other end of the FPC5 is connected with one end of the zebra bar 2；
By setting golden finger, i.e. FPC5 pad portion, the FPC5 in one end that the FPC5 is connected with zebra bar 2
It is connected by golden finger with zebra bar 2, the FPC5 is flexible PCB, and the zebra bar 2 is block conductive rubber；
The other end of the zebra bar 2 is connected with the pcb board 1；
By setting PCB contacts on pcb board 1, the zebra bar 2 is connected by the PCB contacts with the pcb board 1；
The zebra bar 2 compresses the FPC5, the FPC5 is in tensioned state；
The position limiting structure 4, zebra bar 2 and FCB contacts form path, a part of the zebra bar 2 as circuit, pass through limit
Bit architecture 4 and zebra bar 2 fix the FPC5 jointly, the FPC5 is in tensioned state, are not destroying the feelings of the FPC5
Under condition, even if knowing the safe Anti-dismounting structure of the liquid crystal display, also liquid crystal display 6 can not be removed from front, because the FPC5 is in
Tensioned state, FPC5 fracture triggering security mechanisms can be caused when attempting and taking out liquid crystal, so as to improve dismounting difficulty；
The length of the FPC5 is preset, in order that the FPC5 can preferably be in tensioned state, due to described
FPC5 is close on position limiting structure 4, can by measuring the length of position limiting structure 4 plus the length that needs are connected with both ends, as
FPC5 length set in advance；
The safe Anti-dismounting structure of the liquid crystal display is arranged at least one end of liquid crystal display 4, or the liquid crystal display is anti-safely
Structure setting is torn open in the relative both ends of liquid crystal display 6, the particular number and installation site of the safe Anti-dismounting structure of liquid crystal display can roots
It is adjusted according to being actually needed.
Embodiment two
The difference of embodiment two and embodiment one is, is provided with several conductive channels in the zebra bar 2, and set
There is contact corresponding with the conductive channel, when conductive channel turns on, its corresponding contact is connected with pcb board 1, the zebra
The resistance that the conductive channel of bar 2 turns under different pressures effect is different；
The number of conductive channel in the zebra bar 2 is 8-10, and described is only this programme embodiment, to institute
The number for stating the conductive channel of zebra bar 2 changes, and also belongs to the scope of patent protection of the present invention.
Embodiment three
The difference of embodiment three and embodiment one is that the position limiting structure 4 is rectangular and horizontal positioned, its width with
FPC5 width is adapted, and length is adapted with the length of extensions of the FPC5 thereon；
An extension straight up is provided with the one end of the position limiting structure 4 along its length；
The one end of the extension straight up away from position limiting structure 4 supports the FPC and the edge of the liquid crystal display 6
Junction, the FPC5 are close to the extension straight up and extend to the position limiting structure 4；
An extension straight down is provided with the other end of the position limiting structure 4 along its length；
The length of the extension straight down is less than the length of the zebra bar 2；
A projection is respectively provided with the edge of the side that the position limiting structure 4 contacts with the FPC5 in the width direction to limit
The movement of the FPC5；
The corner of the extension and the position limiting structure 4 straight up is arranged to curved surface.
Example IV
A kind of safe tamper method of liquid crystal display, using the above-mentioned safe Anti-dismounting structure of liquid crystal display.
In summary, a kind of safe Anti-dismounting structure of liquid crystal display provided by the invention and method, liquid crystal is etched in by safety line
Shield 6 marginal positions, drawn by FPC5 and extend to the position limiting structure 4, it is common by the position limiting structure 4 and zebra bar 2
Fixed FPC5, makes the FPC5 be in tensioned state, the length of the FPC5 can be preset, and the edge glass of liquid crystal display 6 is more
Fragility, it is easily destroyed during dismounting, so as to trigger security mechanism, in the case where not destroying FPC5, even if knowing liquid crystal display safety
Anti-dismounting structure, also liquid crystal display 6 can not be removed from the front of shell 3, because FPC5 is in tensioned state, the meeting when attempting to take out liquid crystal
Cause FPC5 fracture triggering security mechanisms, improve dismounting difficulty, several conductive channels are provided with zebra bar 2, it is described
The number that conductive channel turns under different pressures effect is different, and zebra bar 2 can be caused to access resistance change in circuit so that
Safe Anti-dismounting structure circuit is sensitiveer, while the different monitoring liquid crystal displays of values of circuit resistances can be also accessed according to zebra bar 2
Whether safe Anti-dismounting structure destroys by external force, and security is higher.
Embodiments of the invention are the foregoing is only, are not intended to limit the scope of the invention, it is every to utilize this hair
The equivalents that bright specification and accompanying drawing content are made, or the technical field of correlation is directly or indirectly used in, similarly include
In the scope of patent protection of the present invention.
Claims (10)
1. a kind of safe Anti-dismounting structure of liquid crystal display, including safety line, pcb board, zebra bar and FPC, it is characterised in that
Also include position limiting structure；
The safety line is etched in liquid crystal display marginal position, is drawn by FPC and extends to the position limiting structure；
The position limiting structure limits the movement of the FPC；
The other end of the FPC is connected with one end of the zebra bar；
The other end of the zebra bar is connected with the pcb board；
The zebra bar compresses the FPC, the FPC is in tensioned state.
2. the safe Anti-dismounting structure of liquid crystal display according to claim 1, it is characterised in that
The safe Anti-dismounting structure of liquid crystal display is arranged at least one end of liquid crystal display.
3. the safe Anti-dismounting structure of liquid crystal display according to claim 2, it is characterised in that
The safe Anti-dismounting structure of liquid crystal display is arranged at the relative both ends of liquid crystal display.
4. the safe Anti-dismounting structure of liquid crystal display according to claim 1, it is characterised in that
The length of the FPC is preset.
5. the safe Anti-dismounting structure of liquid crystal display according to claim 1, it is characterised in that
Golden finger is set in one end that the FPC is connected with zebra bar, the FPC is connected by golden finger with zebra bar.
6. the safe Anti-dismounting structure of liquid crystal display according to claim 1, it is characterised in that
PCB contacts are set on the pcb board, and the zebra bar is connected by the PCB contacts with the pcb board.
7. the safe Anti-dismounting structure of liquid crystal display according to claim 1, it is characterised in that
Several conductive channels are provided with the zebra bar, and are provided with contact corresponding with the conductive channel, work as conduction
During channel conductive, its corresponding contact is connected with pcb board；
The resistance that the conductive channel of the zebra bar turns under different pressures effect is different.
8. the safe Anti-dismounting structure of liquid crystal display according to claim 7, it is characterised in that
The number of conductive channel in the zebra bar is 8-10.
9. the safe Anti-dismounting structure of liquid crystal display according to claim 1, it is characterised in that
The position limiting structure is rectangular and horizontal positioned, and its width is adapted with FPC width, length prolonging thereon with FPC
The length of extending portion point is adapted；
An extension straight up is provided with the one end of the position limiting structure along its length；
The one end of the extension straight up away from position limiting structure supports the connection of the FPC and the liquid crystal platen edge
Place, the FPC are close to the extension straight up and extend to the position limiting structure；
An extension straight down is provided with the other end of the position limiting structure along its length；
The length of the extension straight down is less than the length of the zebra bar；
It is raised described to limit that one is respectively provided with the edge of the side that the position limiting structure contacts with the FPC in the width direction
FPC movement.
A kind of 10. safe tamper method of liquid crystal display, it is characterised in that
Using the safe Anti-dismounting structure of liquid crystal display any one of claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710879060.9A CN107657188B (en) | 2017-09-26 | 2017-09-26 | Safe anti-dismantling structure and method for liquid crystal display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710879060.9A CN107657188B (en) | 2017-09-26 | 2017-09-26 | Safe anti-dismantling structure and method for liquid crystal display |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107657188A true CN107657188A (en) | 2018-02-02 |
| CN107657188B CN107657188B (en) | 2019-12-31 |
Family
ID=61131238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710879060.9A Active CN107657188B (en) | 2017-09-26 | 2017-09-26 | Safe anti-dismantling structure and method for liquid crystal display |
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| Country | Link |
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| CN (1) | CN107657188B (en) |
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| CN112330896A (en) * | 2020-09-29 | 2021-02-05 | 福建联迪商用设备有限公司 | Safety protection structure of LCD screen |
| WO2022252375A1 (en) * | 2021-05-31 | 2022-12-08 | 深圳市华星光电半导体显示技术有限公司 | Display panel and assembly method therefor and tiled display device |
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| Publication number | Publication date |
|---|---|
| CN107657188B (en) | 2019-12-31 |
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