CN104703386A - Liquid crystal screen safety protection method, liquid crystal screen safety protection device, protecting circuit board thereof and manufacturing method - Google Patents
Liquid crystal screen safety protection method, liquid crystal screen safety protection device, protecting circuit board thereof and manufacturing method Download PDFInfo
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- CN104703386A CN104703386A CN201510113580.XA CN201510113580A CN104703386A CN 104703386 A CN104703386 A CN 104703386A CN 201510113580 A CN201510113580 A CN 201510113580A CN 104703386 A CN104703386 A CN 104703386A
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- liquid crystal
- protective circuit
- circuit plate
- base material
- flexibility
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0275—Security details, e.g. tampering prevention or detection
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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
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- Engineering & Computer Science (AREA)
- Nonlinear Science (AREA)
- Computer Security & Cryptography (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Burglar Alarm Systems (AREA)
Abstract
The invention relates to a liquid crystal screen safety protection method, a liquid crystal screen safety protection device, a protecting circuit board thereof and a manufacturing method. The flexible tear-proof protecting circuit board comprises a bendable flexible base material; at least four access points are distributed on the surface layer of the base material; at least one high-density protecting wire is arranged in the base material; each high-density protecting wire is formed by winding at least two safety monitoring signal wires which transmit mutual exclusion safety monitoring signals; each safety monitoring signal wire comprises a first end point and a second end point; the end points of each safety monitoring signal wire are respectively connected with the corresponding access points electrically; an adhesion layer which can be adhered to an adhered object and has the tear-proof performance coats the base material locally; and the high-density protecting wires remain on the adhered object after the base material is uncovered completely or partially. By the liquid crystal screen safety protection method, the liquid crystal screen safety protection device, the protecting circuit board thereof and the manufacturing method, the circumstance that an attacker attacks a liquid crystal display screen or visits the inside of equipment through an opening of the liquid crystal display screen is avoided effectively, safety of equipment information and user information is ensured.
Description
Technical field
The present invention relates to financial payment series products technical field, particularly a kind of liquid crystal display screen method for security protection, device and protective circuit plate thereof and manufacture method.
Background technology
In current financial payment series products application; electronic equipment in such as POS, ATM and other financial payment field; sensitive information is as system key and personal identification number; sensitive signal, as inputted the keyboard signal, the system bus signal of transmission system key, anti-tamper attack detecting signal etc. of personal identification number, all needs to be subject to strict protection.
LCDs is as the information output part of man-machine interaction, indispensable in financial payment equipment.But LCDs is also one holds pregnable parts.By the structural openings of LCDs, assailant is easy to the connection cable having access to LCDs, and by distorting the data-signal of LCDs, induction user inputs personal identification number to gain individual subscriber password by cheating; Assailant can also start LCDs parts, has access to mainboard or the finger-board of equipment, further supervisory control system bus or keyboard signal, thus obtains the sensitive data such as system key or individual subscriber password.Therefore, how effectively protect LCDs and stop liquid-crystal displaying screen structure opening to become approach that assailant obtains financial payment device interior sensitive data, become one of important topic of people in the industry's exploratory development.
The existing protected mode to LCDs, as LCDs increased attack detecting signal (stop and destroy and change LCDs), the connection cable of Liquid Crystal Module increases high density protection cabling (prevention is distorted display data signal or changed LCDs), liquid crystal display screen assembly increases breaking-proof switch and (stops mobile liquid crystal display screen, thus access liquid crystal connection cable, mainboard or finger-board) etc., all need to carry out specialized designs or customization to LCDs, cause LCDs not general, design cycle is long, on the high side partially long with the delivery cycle.In above-mentioned protected mode, high density protection cabling can make the signal integrity of LCDs drive singal be deteriorated, and it is uneven that breaking-proof switch can cause LCDs to show because of local pressure.And; more crucially; the protection of above-mentioned protected mode is still more weak;, also there is weak spot in security mechanism imperfection, such as assailant is still easily via bypass breaking-proof switch; start LCDs or assembly; have access to mainboard or the finger-board of device interior, further supervisory control system bus, keyboard signal, thus obtain sensitive data.
Summary of the invention
In view of the deficiencies in the prior art, the object of the present invention is to provide a kind of structure simple, novel in design, make easy and safe and reliable liquid crystal display screen method for security protection, device and protective circuit plate thereof and manufacture method, custom liquid crystals module can be used, do not need specialized designs or customization LCDs, under the condition not affecting display effect and electric property, but assailant can be stoped to attack LCDs, also assailant can be stoped to pass through mainboard or the finger-board of the structural openings access device interior of LCDs, considerably increase attack difficulty, improve the coefficient of safety of equipment, thus the sensitive data that proterctive equipment is relevant effectively can not be stolen.
To achieve these goals, technical scheme one of the present invention is: a kind of flexibility is anti-tears protective circuit plate, comprise bent flexible substrate, described base material top layer is distributed with at least 4 access points, described base material inside is provided with at least one floor height density protection cabling, described high density protection cabling is made up of the security monitoring signal lead coiling of at least 2 transmission mutual exclusion security monitoring signals, described security monitoring signal lead all comprises the first end points and the second end points, and each end points is electrically connected with corresponding access point respectively; Described base material topical application has one deck Pasting on affixed object and has the anti-adhesive-layer tearing performance, and cabling is all or part of after base material is lifted stays on affixed object in described high density protection.
In further technical scheme, described mutual exclusion security monitoring signal is the dynamic level adopting the contrary dead level of polarity height, change at random or the dynamic level adopting polynomial function generator to produce; Each security monitoring signal is driven by safe processor and detects, sensitive data can be removed immediately when described safe processor is short-circuited between signal generation open circuit or signal, mark intrusion status or record intrusion event, and make equipment not continue on for financial transaction.
In further technical scheme, described substrate surface carries out preliminary treatment and protects cabling and viscous layer to the adhesive force of base material to control high density, and described preliminary treatment adopts the glue being added with bleeding agent to carry out applying or adopt laser cutting to go out the edge of a knife.
In further technical scheme, described high density protection cabling adopts electrically conductive ink printing, metallic aluminium overlay film after etching, metallic copper overlay film after etching or metallic copper to be plated on base material upper surface.
In further technical scheme, the material of described base material is two-sided art paper, OPP, PE, PET or PO material.
To achieve these goals, technical scheme two of the present invention is: a kind of flexibility prevents the manufacture method of tearing protective circuit plate, comprises the following steps:
(1) at least 4 access points are manufactured with on bent flexible substrate top layer;
(2) at least one floor height density protection of base material internal production cabling, described high density protection cabling is made up of the security monitoring signal lead coiling of at least 2 transmission mutual exclusion security monitoring signals, and described security monitoring signal lead all comprises the first end points and the second end points;
(3) each end points of cabling high density is protected to be electrically connected with corresponding access point respectively;
(4) on base material, topical application one deck Pasting has the anti-adhesive-layer tearing performance on affixed object, and after base material is lifted, cabling is all or part of stays on affixed object for described high density protection, can not entirety be diverted.
To achieve these goals, technical scheme three of the present invention is: a kind of liquid crystal display screen safety guard, comprise flexibility as above to prevent tearing protective circuit plate, described flexibility prevents tearing protective circuit plate is pasted on LCDs lower surface by its adhesive-layer, described LCDs and flexibility be anti-tears together with protective circuit plate and is arranged on liquid crystal support, described liquid crystal support installing is on PCB base plate, described PCB base plate is provided with at least 4 security monitoring signal access points, described security monitoring signal access point and flexibility prevent that tearing access point corresponding on protective circuit plate is electrically connected, under the position of described electrical connection is in the covering of LCDs or be in other safety closed interval.
In further technical scheme, by conduction zebra bar, welding or receptacle connectors and flexibility, the security monitoring signal access point on described PCB base plate is prevented that the access point torn on protective circuit plate is formed and is electrically connected.
To achieve these goals, technical scheme four of the present invention is: a kind of liquid crystal display screen method for security protection, adopts flexibility as above to prevent tearing protective circuit plate, and comprises the following steps:
(1) by adhesive-layer, flexibility is prevented tearing the lower surface that protective circuit plate is pasted on LCDs;
(2) anti-to LCDs and flexibility tearing together with protective circuit plate is arranged on liquid crystal support;
(3) by liquid crystal support installing on PCB base plate;
(4) flexibility is prevented that the access point torn on protective circuit plate to be electrically connected on PCB base plate corresponding security monitoring signal access point, and under making the position be electrically connected be in the covering of LCDs or be in other safety closed interval.
In further technical scheme, in step (4), by conduction zebra bar, welding or receptacle connectors, flexibility is prevented that the access point torn on protective circuit plate is electrically connected to security monitoring signal access point corresponding on PCB base plate.
Compared with prior art, the present invention has following beneficial effect:
(1) tear between protective circuit plate and LCDs inseparable because flexibility is anti-, if therefore assailant attempts to open and flexiblely anti-ly tears protective circuit plate, then part protection circuit can stay the lower surface of LCDs, makes the open circuit of protection cabling; Because high density protection cabling comprises at least 2 mutual exclusion security monitoring signals, if therefore assailant attempts detection and short circuit protection cabling, be then easy to cause forming short circuit between mutual exclusion security monitoring signal; And once open circuit or short circuit appear in protection circuit, safe processor can remove sensitive data immediately, mark intrusion status or record intrusion event, and make equipment not continue on for financial transaction, guarantee the safety of facility information and user profile.
(2) LCDs, flexibility are prevented that tearing protective circuit plate, liquid crystal support and PCB base plate connects into an inseparable entirety, and the access point of security monitoring signal be in the covering of LCDs under or be in other safeguard protection wiring board form closed interval in, assailant directly cannot be accessed by the opening of LCDs; Therefore; this liquid crystal display screen safety guard is effectively prevented assailant to attack LCDs or is conducted interviews to device interior by LCDs opening; no matter attempt to destroy, start or remove LCDs; capital causes protection circuit to occur open circuit or short circuit; safe processor can remove sensitive data immediately; mark intrusion status or record intrusion event, and make equipment not continue on for financial transaction, guarantee the safety of facility information and user profile.
Accompanying drawing explanation
Fig. 1 is the coiling schematic diagram of high density protection cabling.
Fig. 2 is the flexible anti-structural representation tearing protective circuit plate.
Fig. 3 is the structural blast figure of liquid crystal display screen safety guard.
Mark in figure: 1-LCDs, 11-liquid crystal cable; 2-flexibility is anti-tears protective circuit plate, 21-zone line, 211-first security monitoring signal lead, 212-second security monitoring signal lead, 22-left area, 23-right area, 24-location hole, 25-access point, 26-window; 3-liquid crystal support, 31-opening, 32-fixes fence; 4-conduction zebra bar; 5-PCB base plate.
Embodiment
For above-mentioned feature and advantage of the present invention can be become apparent, special embodiment below, and coordinate accompanying drawing, be described in detail below.
As shown in Figure 1 and 2, a kind of flexibility is anti-tears protective circuit plate, comprise bent flexible substrate, described base material top layer is distributed with 4 access points 25, described base material inside is provided with one deck high density protection cabling, described high density protection cabling is made up of the security monitoring signal lead coiling of 2 transmission mutual exclusion security monitoring signals, wherein the first security monitoring signal lead 211 comprises the first end points IN+ and the second end points OUT+, second security monitoring signal lead 212 comprises the first end points IN-and the second end points OUT-, and each end points is electrically connected with corresponding access point 25 respectively; Described base material topical application has one deck Pasting on affixed object and has the anti-adhesive-layer tearing performance, and cabling is all or part of after base material is lifted stays on affixed object in described high density protection, can not global transfer walk.
In the present embodiment; described base material comprises zone line 21 and can the areas at both sides that down bends of zone line 21 relatively; described high density protection cabling and on adhesive-layer be arranged at the upper surface of base material zone line 21; described access point 25 is distributed in the upper surface of base material one edge regions; described base material another side region offers the window 26 exposing access point 25 when bending stacked with an edge regions, and described base material two ends are respectively arranged with 2 location holes 24.
In the present embodiment, the material of described base material is two-sided art paper, OPP, PE, PET or PO material; Described high density protection cabling adopts electrically conductive ink printing, metallic aluminium overlay film after etching, metallic copper overlay film after etching or metallic copper to be plated on base material upper surface; Protect cabling and viscous layer to the adhesive force of base material to control high density; described substrate surface carries out preliminary treatment, and the glue being added with bleeding agent can be adopted to apply, and laser cutting also can be adopted to go out the edge of a knife; the content of described bleeding agent increases, such as 0 ~ 1% according to the increase of adhesive force.
In the present embodiment, described security monitoring signal lead is snakelike cabling, but is not limited thereto, and can also adopt other cabling form; Access point 25 quantity on described base material is also not limited to 4, can get 2n, wherein n >=2; The high density protection cabling number of plies of described base material inside is also not limited to 1 layer, can also be 2 layers, 3 layers even more.
In the present embodiment, described mutual exclusion security monitoring signal is the dynamic level adopting the contrary dead level of polarity height, change at random or the dynamic level adopting polynomial function generator to produce; Each security monitoring signal is driven by safe processor and detects, sensitive data can be removed immediately when described safe processor is short-circuited between signal generation open circuit or signal, mark intrusion status or record intrusion event, and make equipment not continue on for financial transaction.
In the present embodiment, the anti-manufacture method of tearing protective circuit plate of this flexibility comprises the following steps:
(1) 4 access points 25 are manufactured with on bent flexible substrate top layer;
(2) at base material internal production one deck high density protection cabling, described high density protection cabling is made up of the security monitoring signal lead coiling of 2 transmission mutual exclusion security monitoring signals, and described security monitoring signal lead all comprises the first end points and the second end points;
(3) each end points of cabling high density is protected to be electrically connected with corresponding access point 25 respectively;
(4) on base material, topical application one deck Pasting has the anti-adhesive-layer tearing performance on affixed object, and after base material is lifted, cabling is all or part of stays on affixed object for described high density protection, can not entirety be diverted.
As shown in Figure 3, a kind of liquid crystal display screen safety guard, comprise flexibility as above to prevent tearing protective circuit plate 2, described flexibility prevents tearing protective circuit plate 2 is pasted on LCDs 1 lower surface by its adhesive-layer, described LCDs 1 and flexibility be anti-tears together with protective circuit plate 2 and is arranged on liquid crystal support 3, described liquid crystal support 3 is arranged on PCB base plate 5, described PCB base plate 5 is provided with at least 4 security monitoring signal access points, described security monitoring signal access point and flexibility prevent that tearing access point 25 corresponding on protective circuit plate 2 is electrically connected, under the position of described electrical connection is in the covering of LCDs 1 or be in other safety closed interval.
In the present embodiment; described flexibility prevents tearing protective circuit plate 2 is pasted on LCDs 1 lower surface by the adhesive-layer that its surperficial zone line 21 applies; described flexibility prevents tearing the lower surface being folded to liquid crystal support 3 after the left area 22 of protective circuit plate 2 and right area 23 are each passed through liquid crystal support 3 both ends open 31; and the lower surface of liquid crystal support 3 is fixed on by 4 location holes 24; and then LCDs 1 is fixed on liquid crystal support 3, and prevent that tearing protective circuit plate 2 upper surface fits tightly with flexibility.
In the present embodiment, with flexibility, the security monitoring signal access point on described PCB base plate 5 is prevented that the access point 25 torn on protective circuit plate 2 is formed by conduction zebra bar 4 and is electrically connected, but be not limited thereto; Certainly, by welding or receptacle connectors and flexibility, the security monitoring signal access point on described PCB base plate 5 can also be prevented that the access point 25 torn on protective circuit plate 2 is formed and be electrically connected.Under the position of described electrical connection is in the covering of LCDs 1, but be not limited thereto; Certainly, the position of described electrical connection can also be in the enclosure space of other safeguard protection wiring board formation.
In the present embodiment, described liquid crystal support 3 lower surface is provided with the fixing fence 32 of fixing conduction zebra bar 4, and described fixing fence 32 is that the pillar extended by liquid crystal support 3 lower surface is formed; Described conduction zebra bar 4 and fixing fence 32 thereof prevent the window 26 torn on protective circuit plate 2 through flexibility, the flexible anti-access point 25 torn on protective circuit plate 2 is electrically connected with the security monitoring signal access point on PCB base plate 5.
As shown in Figure 3, a kind of liquid crystal display screen method for security protection, adopts flexibility as above to prevent tearing protective circuit plate 2, and comprises the following steps:
(1) by adhesive-layer, flexibility is prevented tearing the lower surface that protective circuit plate 2 is pasted on LCDs 1;
(2) anti-to LCDs 1 and flexibility tearing together with protective circuit plate 2 is arranged on liquid crystal support 3;
(3) liquid crystal support 3 is arranged on PCB base plate 5;
(4) flexibility is prevented that the access point 25 torn on protective circuit plate 2 to be electrically connected on PCB base plate 5 corresponding security monitoring signal access point, and under making the position be electrically connected be in the covering of LCDs 1 or be in other safety closed interval.
In step (4), by conduction zebra bar 4, welding or receptacle connectors, flexibility can be prevented that the access point 25 torn on protective circuit plate 2 is electrically connected to security monitoring signal access point corresponding on PCB base plate 5.
The present invention is not limited to above-mentioned preferred forms, and anyone can draw other various forms of liquid crystal display screen method for security protection, device and protective circuit plate thereof and manufacture methods under enlightenment of the present invention.All equalizations done according to the present patent application the scope of the claims change and modify, and all should belong to covering scope of the present invention.
Claims (10)
1. a flexibility prevents tearing protective circuit plate, it is characterized in that: comprise bent flexible substrate, described base material top layer is distributed with at least 4 access points, described base material inside is provided with at least one floor height density protection cabling, described high density protection cabling is made up of the security monitoring signal lead coiling of at least 2 transmission mutual exclusion security monitoring signals, described security monitoring signal lead all comprises the first end points and the second end points, and each end points is electrically connected with corresponding access point respectively; Described base material topical application has one deck Pasting on affixed object and has the anti-adhesive-layer tearing performance, and cabling is all or part of after base material is lifted stays on affixed object in described high density protection.
2. flexibility according to claim 1 is anti-tears protective circuit plate, it is characterized in that: described mutual exclusion security monitoring signal is the dynamic level adopting the contrary dead level of polarity height, change at random or the dynamic level adopting polynomial function generator to produce; Each security monitoring signal is driven by safe processor and detects, sensitive data can be removed immediately when described safe processor is short-circuited between signal generation open circuit or signal, mark intrusion status or record intrusion event, and make equipment not continue on for financial transaction.
3. flexibility according to claim 1 is anti-tears protective circuit plate; it is characterized in that: described substrate surface carries out preliminary treatment and protects cabling and viscous layer to the adhesive force of base material to control high density, and described preliminary treatment adopts the glue being added with bleeding agent to carry out applying or adopt laser cutting to go out the edge of a knife.
4. flexibility according to claim 1 is anti-tears protective circuit plate, it is characterized in that: described high density protection cabling adopts electrically conductive ink printing, metallic aluminium overlay film after etching, metallic copper overlay film after etching or metallic copper to be plated on base material upper surface.
5. flexibility according to claim 1 is anti-tears protective circuit plate, it is characterized in that: the material of described base material is two-sided art paper, OPP, PE, PET or PO material.
6. a flexible anti-manufacture method of tearing protective circuit plate as claimed in claim 1, is characterized in that, comprise the following steps:
(1) at least 4 access points are manufactured with on bent flexible substrate top layer;
(2) at least one floor height density protection of base material internal production cabling, described high density protection cabling is made up of the security monitoring signal lead coiling of at least 2 transmission mutual exclusion security monitoring signals, and described security monitoring signal lead all comprises the first end points and the second end points;
(3) each end points of cabling high density is protected to be electrically connected with corresponding access point respectively;
(4) on base material, topical application one deck Pasting has the anti-adhesive-layer tearing performance on affixed object, and after base material is lifted, cabling is all or part of stays on affixed object for described high density protection, can not entirety be diverted.
7. a liquid crystal display screen safety guard, it is characterized in that: the flexibility comprised according to any one of claim 1 to 5 prevents tearing protective circuit plate, described flexibility prevents tearing protective circuit plate is pasted on LCDs lower surface by its adhesive-layer, described LCDs and flexibility be anti-tears together with protective circuit plate and is arranged on liquid crystal support, described liquid crystal support installing is on PCB base plate, described PCB base plate is provided with at least 4 security monitoring signal access points, described security monitoring signal access point and flexibility prevent that tearing access point corresponding on protective circuit plate is electrically connected, under the position of described electrical connection is in the covering of LCDs or be in other safety closed interval.
8. liquid crystal display screen safety guard according to claim 7, is characterized in that: by conduction zebra bar, welding or receptacle connectors and flexibility, the security monitoring signal access point on described PCB base plate is prevented that the access point torn on protective circuit plate is formed and is electrically connected.
9. a liquid crystal display screen method for security protection, is characterized in that: adopt the flexibility according to any one of claim 1 to 5 to prevent tearing protective circuit plate, and comprise the following steps:
(1) by adhesive-layer, flexibility is prevented tearing the lower surface that protective circuit plate is pasted on LCDs;
(2) anti-to LCDs and flexibility tearing together with protective circuit plate is arranged on liquid crystal support;
(3) by liquid crystal support installing on PCB base plate;
(4) flexibility is prevented that the access point torn on protective circuit plate to be electrically connected on PCB base plate corresponding security monitoring signal access point, and under making the position be electrically connected be in the covering of LCDs or be in other safety closed interval.
10. liquid crystal display screen method for security protection according to claim 9; it is characterized in that: in step (4), by conduction zebra bar, welding or receptacle connectors, flexibility is prevented that the access point torn on protective circuit plate is electrically connected to security monitoring signal access point corresponding on PCB base plate.
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| CN201510113580.XA CN104703386B (en) | 2015-03-16 | 2015-03-16 | Liquid crystal display method for security protection, device and its protection circuit plate and preparation method |
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| CN201510113580.XA CN104703386B (en) | 2015-03-16 | 2015-03-16 | Liquid crystal display method for security protection, device and its protection circuit plate and preparation method |
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| CN104703386A true CN104703386A (en) | 2015-06-10 |
| CN104703386B CN104703386B (en) | 2017-11-10 |
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| CN105225368A (en) * | 2015-10-20 | 2016-01-06 | 福建新大陆支付技术有限公司 | A kind of POS stablizes Anti-dismounting structure and method thereof |
| CN105261129A (en) * | 2015-10-20 | 2016-01-20 | 福建新大陆支付技术有限公司 | Novel payment terminal installation structure and installation method thereof |
| CN105956497A (en) * | 2016-04-25 | 2016-09-21 | 福建新大陆支付技术有限公司 | Safety anti-dismounting method for financial electronic device and structure thereof |
| CN107066903A (en) * | 2017-05-15 | 2017-08-18 | 福建魔方电子科技有限公司 | A kind of POS keyboard safety protection devices |
| CN107133534A (en) * | 2017-04-13 | 2017-09-05 | 深圳华智融科技股份有限公司 | A kind of data protecting device, electronic equipment and data destruction method |
| WO2018014479A1 (en) * | 2016-07-21 | 2018-01-25 | 百富计算机技术（深圳）有限公司 | Touch screen security protection structure and display device |
| CN107896424A (en) * | 2017-11-30 | 2018-04-10 | 苏州斯普兰蒂电子有限公司 | POS is anti-to tear circuit board and the anti-preparation method for tearing circuit board of POS |
| CN108470407A (en) * | 2018-04-19 | 2018-08-31 | 深圳鼎智通讯股份有限公司 | The method of POS machine Network Intrusion record |
| CN108492722A (en) * | 2018-06-22 | 2018-09-04 | 深圳市沃特沃德股份有限公司 | Display module and electronic equipment |
| CN110191575A (en) * | 2019-06-18 | 2019-08-30 | 苏州明浩电子有限公司 | Two-wire type is anti-to tear flexible circuit board |
| CN110831320A (en) * | 2019-10-23 | 2020-02-21 | 百富计算机技术（深圳）有限公司 | Flexible tear-proof circuit board |
| CN115148118A (en) * | 2022-07-07 | 2022-10-04 | 黑芝麻智能科技有限公司 | Flexible circuit board and display device |
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| CN105261129A (en) * | 2015-10-20 | 2016-01-20 | 福建新大陆支付技术有限公司 | Novel payment terminal installation structure and installation method thereof |
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| CN107133534A (en) * | 2017-04-13 | 2017-09-05 | 深圳华智融科技股份有限公司 | A kind of data protecting device, electronic equipment and data destruction method |
| CN107133534B (en) * | 2017-04-13 | 2023-07-25 | 深圳华智融科技股份有限公司 | Data protection device, electronic equipment and data destruction method |
| CN107066903B (en) * | 2017-05-15 | 2023-05-16 | 福建魔方电子科技有限公司 | POS keyboard safety protection device |
| CN107066903A (en) * | 2017-05-15 | 2017-08-18 | 福建魔方电子科技有限公司 | A kind of POS keyboard safety protection devices |
| CN107896424A (en) * | 2017-11-30 | 2018-04-10 | 苏州斯普兰蒂电子有限公司 | POS is anti-to tear circuit board and the anti-preparation method for tearing circuit board of POS |
| CN108470407A (en) * | 2018-04-19 | 2018-08-31 | 深圳鼎智通讯股份有限公司 | The method of POS machine Network Intrusion record |
| CN108492722A (en) * | 2018-06-22 | 2018-09-04 | 深圳市沃特沃德股份有限公司 | Display module and electronic equipment |
| CN110191575A (en) * | 2019-06-18 | 2019-08-30 | 苏州明浩电子有限公司 | Two-wire type is anti-to tear flexible circuit board |
| CN110831320A (en) * | 2019-10-23 | 2020-02-21 | 百富计算机技术（深圳）有限公司 | Flexible tear-proof circuit board |
| CN110831320B (en) * | 2019-10-23 | 2024-05-14 | 百富计算机技术（深圳）有限公司 | Flexible tear-proof circuit board |
| CN115148118A (en) * | 2022-07-07 | 2022-10-04 | 黑芝麻智能科技有限公司 | Flexible circuit board and display device |
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