CN220962524U

CN220962524U - Display assembly and electronic equipment with same

Info

Publication number: CN220962524U
Application number: CN202322283228.3U
Authority: CN
Inventors: 曾新城; 吴冬周; 吴云涛
Original assignee: Yinjie Nico Fujian Technology Co ltd
Current assignee: Yinjie Nico Fujian Technology Co ltd
Priority date: 2023-08-24
Filing date: 2023-08-24
Publication date: 2024-05-14
Anticipated expiration: 2033-08-24

Abstract

The utility model discloses a display component and electronic equipment with the same, wherein the display component comprises a protective film, a display screen, a main board and a safe flexible circuit board; the protective film is attached to the display screen, the display screen is electrically connected with the main board, the safety flexible circuit board is connected with the protective film, the safety flexible circuit board is provided with a safety signal wire, and the safety signal wire is electrically connected with the main board; when the protective film is separated from the display, the safety signal line is electrically disconnected from the main board. When the protective film is normally attached to the display screen, the safety signal wire is electrically connected with the main board, the main board can receive the safety signal, the flexible circuit board can be damaged when the protective film and the display screen of the display assembly are forcedly separated, the electric connection between the safety signal wire and the main board is disconnected, the level acquired by the main board is abnormal, and the main board can send out warning information to remind maintenance personnel that the protective film is torn.

Description

Display assembly and electronic equipment with same

Technical Field

The utility model relates to the technical field of display screens, in particular to a display assembly and electronic equipment with the same.

Background

The POS (Point of sales) machine reads the magnetic stripe information of the card holder on the bank card through the card reader, the POS operator inputs the transaction amount, the card holder inputs personal identification information (i.e. password), the POS sends the information to the card-issuing bank system through the Unionpay center, and the online transaction is completed.

A protective film is attached to the display screen of the POS, and the display screen is protected by the protective film, so that the display screen is prevented from being scratched.

Chinese patent with the grant notice number CN217880265U discloses an electronic device comprising: the middle frame comprises a middle plate and a frame, the frame surrounds the middle plate, the frame and the middle plate enclose a containing groove, the containing groove is positioned on one side of the middle plate, and one end of the containing groove, far away from the middle plate, is opened; the screen is arranged in the accommodating groove, and the display surface of the screen faces the opening; the light-transmitting protection plate covers the opening of the accommodating groove, and the edge of the light-transmitting protection plate is fixed on the end face of the frame, which surrounds the opening.

The POS machine has a high requirement on security, if a lawbreaker steals the protective film (transparent protective plate) to steal fingerprint information, or steals the whole display component to steal sensitive information (identity information, property information, payment password, consumption content, etc. of a user) stored on the motherboard, the property security and personal safety of the user can be seriously endangered, resulting in immeasurable consequences.

Disclosure of utility model

Therefore, it is necessary to provide a display assembly and an electronic device having the same, which solve the problem that the fingerprint information on the protective film and the sensitive information stored on the motherboard are cracked due to the fact that the protective film is easily separated from the display screen.

In order to achieve the above object, the present application provides a display assembly, including a protective film, a display screen, a main board and a safety flexible circuit board;

The protection film is attached on the display screen, the display screen is electrically connected with the main board, the safety flexible circuit board is connected with the protection film, the safety flexible circuit board is provided with a safety signal wire, the safety signal wire is electrically connected with the main board, and the main board forms a signal detection loop through the safety signal wire.

Further, a metal guide layer is coated on the protective film, the metal guide layer is electrically connected with the safety signal wire, and the main board forms a signal detection loop through the safety signal wire and the metal guide layer.

Further, the safety flexible circuit board is adhered to the protective film.

Further, the safety signal line is electrically connected with the front or back of the main board.

Further, the safety flexible circuit boards are multiple, and the safety flexible circuit boards are connected to opposite sides of the protective film.

Further, the display screen comprises a panel and a display unit arranged on the back of the panel, the protective film is attached to the front of the panel, the panel is a full transparent panel, and the display unit is provided with wiring.

Further, the protective film is provided with a shielding part, and the shielding part is used for shielding the safety flexible circuit board and the wiring below.

Further, the protective film is a toughened film.

In order to achieve the above object, the present application further provides an electronic device, including a display assembly according to any one of the embodiments.

Further, the electronic equipment is a POS machine.

Compared with the prior art, the technical scheme provides the display assembly, the main board outputs the safety signal, the safety signal line transmits the safety signal, the main board can judge whether the safety signal line is disconnected with the main board according to the change of the acquisition level, when the protective film is normally attached to the display screen, the safety signal line is electrically connected with the main board, the main board can receive the safety signal, when the protective film and the display screen of the display assembly are forcedly separated, the damage of the flexible circuit board can be caused, the electric connection of the safety signal line and the main board is disconnected, the acquired level of the main board is abnormal, the main board can send warning information to remind maintenance personnel that the protective film is torn, and corresponding countermeasures such as locking the display assembly, clearing sensitive data on the main board, maintaining and replacing the display assembly and the like are adopted to protect the data safety on the display assembly.

Drawings

FIG. 1 is a schematic diagram of the structure of a protective film, a display screen, a motherboard and a safety flexible circuit board in the present embodiment;

FIG. 2 is a second schematic diagram of the structure of the protective film, the display, the motherboard and the security flexible circuit board in the present embodiment;

FIG. 3 is a third schematic diagram of the protective film, the display, the motherboard and the security flexible circuit board in the present embodiment;

fig. 4 is a schematic structural diagram of the present embodiment in which the opposite sides of the protective film are connected to a safety flexible circuit board;

FIG. 5 is a schematic diagram of the structure of the safety signal line in the present embodiment;

Fig. 6 is a schematic structural diagram of the fully transparent protective film in the present embodiment;

FIG. 7 is a schematic view of the structure of a non-transparent protective film according to the present embodiment;

Fig. 8 is a schematic structural diagram of an electronic device in the present embodiment.

Reference numerals illustrate:

1. a protective film;

11. A shielding part;

12. a transparent portion;

2. a display screen;

21. A panel;

3. A main board;

4. a secure flexible circuit board;

41. a safety signal line;

5. an electronic device.

Detailed Description

In order to describe the possible application scenarios, technical principles, practical embodiments, and the like of the present application in detail, the following description is made with reference to the specific embodiments and the accompanying drawings. The embodiments described herein are only for more clearly illustrating the technical aspects of the present application, and thus are only exemplary and not intended to limit the scope of the present application.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of the phrase "in various places in the specification are not necessarily all referring to the same embodiment, nor are they particularly limited to independence or relevance from other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, the technical features mentioned in each embodiment may be combined in any manner to form a corresponding implementable technical solution.

Unless defined otherwise, technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application pertains; the use of related terms herein is for the purpose of describing particular embodiments only and is not intended to limit the application.

In the description of the present application, the term "and/or" is a representation for describing a logical relationship between objects, which means that three relationships may exist, for example a and/or B, representing: there are three cases, a, B, and both a and B. In addition, the character "/" herein generally indicates that the front-to-back associated object is an "or" logical relationship.

In the present application, terms such as "first" and "second" are used merely to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual number, order, or sequence of such entities or operations.

Without further limitation, the use of the terms "comprising," "including," "having," or other like terms in this specification is intended to cover a non-exclusive inclusion, such that a process, method, or article of manufacture that comprises a list of elements does not include additional elements but may include other elements not expressly listed or inherent to such process, method, or article of manufacture.

As in the understanding of "review guidelines," the expressions "greater than", "less than", "exceeding" and the like are understood to exclude this number in the present application; the expressions "above", "below", "within" and the like are understood to include this number. Furthermore, in the description of embodiments of the present application, the meaning of "a plurality of" is two or more (including two), and similarly, the expression "a plurality of" is also to be understood as such, for example, "a plurality of" and the like, unless specifically defined otherwise.

In the description of embodiments of the present application, spatially relative terms such as "center," "longitudinal," "transverse," "length," "width," "thickness," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counter-clockwise," "axial," "radial," "circumferential," etc., are used herein as a basis for the description of the embodiments or as a basis for the description of the embodiments, and are not intended to indicate or imply that the devices or components referred to must have a particular position, a particular orientation, or be configured or operated in a particular orientation and therefore should not be construed as limiting the embodiments of the present application.

Unless specifically stated or limited otherwise, the terms "mounted," "connected," "affixed," "disposed," and the like as used in the description of embodiments of the application should be construed broadly. For example, the "connection" may be a fixed connection, a detachable connection, or an integral arrangement; the device can be mechanically connected, electrically connected and communicated; it can be directly connected or indirectly connected through an intermediate medium; which may be a communication between two elements or an interaction between two elements. The specific meaning of the above terms in the embodiments of the present application can be understood by those skilled in the art to which the present application pertains according to circumstances.

The display assembly is applied to the use scene with higher security, if a lawbreaker steals the protective film 1 on the display assembly to steal fingerprint information, or steals the whole display assembly to steal sensitive information (identity information, property information, payment passwords, consumption content and the like of a user) stored on the main board 3, the property safety and personal safety of the user can be seriously endangered, and immeasurable consequences are caused.

Referring to fig. 1 to 6, the present embodiment provides a display assembly, which includes a protective film 1, a display screen 2, a motherboard 3, and a security flexible circuit board 4;

The protective film 1 is attached to the display screen 2, so that the display screen 2 can be protected, and the display screen 2 is prevented from being scratched;

The display screen 2 is electrically connected with the main board 3, the main board 3 is a board containing a plurality of electrical elements and circuits, signals required for display are formed through data processing and conversion, then the signals are transmitted to the display screen 2, corresponding display is carried out through pixels of a display unit, and in addition, the main board 3 can also control related circuits of the display screen 2, such as a background light source, a touch panel, an indicator light and the like;

The safety flexible circuit board 4 is connected with the protective film 1, the safety flexible circuit board 4 is provided with a safety signal wire 41, the structure of the safety signal wire is shown in fig. 5, the safety signal wire 41 is electrically connected with the main board 3, the main board 4 forms a signal detection loop through the safety signal wire 41, the safety signal wire 41 transmits a safety signal, and the main board 3 can output the safety signal;

The forced separation of the protective film 1 and the display screen 2 of the display module of the present application may result in damage to the flexible circuit board 4 and the signal detection circuit.

The principle of the signal detection loop is as follows:

1. the main board 3 (its chip) can determine whether the signal detection circuit is disconnected according to the change of the collection level. If the signal detection loop is in the channel, the main board sends out a high level, and the main board receives the high level to indicate that the display assembly is kept complete; if the signal detection circuit is broken, the main board 3 sends out a high level, and receives a low level to indicate the damage of the flexible circuit board and the signal detection circuit;

2. The main board 3 (the chip thereof) is connected to a high level or a low level through a safety signal line, if the safety signal line is disconnected, the chip receives the opposite level, in the scheme, the main board 3 only receives and does not send a safety signal;

the main board 3 can send out warning information to remind maintenance personnel that the protective film 1 is torn, and corresponding countermeasures such as locking the display component, clearing sensitive data on the main board 3, repairing and replacing the display component and the like should be taken to protect the data safety on the display component.

It should be noted that, the safety signal line (the safety signal is sent out by the CPU of the motherboard) may be connected to the safety flexible circuit board through the connector or the zebra stripe, and then the safety signal line is wound on the safety flexible circuit board and returns to the motherboard through the other connector or the zebra stripe.

Compared with the prior art, the technical scheme provides the display assembly, the main board forms the signal detection loop through the safety signal wire, the main board can judge whether the signal detection loop is disconnected according to the change of the acquisition level, when the protective film is normally attached to the display screen, the signal detection loop is connected, the display assembly is kept complete, the flexible circuit board and the signal detection loop can be damaged when the protective film and the display screen of the display assembly are forcedly separated, the main board can send out warning information to remind maintenance personnel that the protective film is torn, corresponding countermeasures such as locking the display assembly, clearing sensitive data on the main board, maintaining and replacing the display assembly and the like are adopted, so that the data safety on the display assembly is protected.

Referring to fig. 1 to 4, in the present embodiment, there are a plurality of safety flexible circuit boards 4, for example, 2, 3, 4, 5, 6, etc. safety flexible circuit boards 4 are connected to the motherboard 3 and the protective film 1, and by setting a plurality of safety flexible circuit boards 4, an lawless person can break the safety flexible circuit boards 4 at different positions when tearing the protective film 1 at the different positions, thereby improving the safety of the display assembly.

Preferably, the opposite sides of the protective film 1 are connected with a safety flexible circuit board 4, and the structure is shown in fig. 4.

In general, the display screen 2 is rectangular, the protective film 1 adapted to the display screen 2 is also rectangular, and the two opposite sides of the rectangle are both provided with the safety flexible circuit boards 4, so that when the protective film 1 is torn, at least one safety flexible circuit board 4 can be disconnected, the main board 3 can rapidly detect the abnormal situation, and the safety of the display assembly is improved.

Referring to fig. 1 to 3, in the present embodiment, a safety flexible circuit board 4 is connected to the back surface of a protective film 1, and a safety signal line is connected to the front surface or the back surface of a motherboard 3. Fig. 1 shows a schematic view of the connection of the safety flexible circuit board 4 to the back surface of the protective film 1, and the electrical connection of the safety signal lines of the safety flexible circuit board 4 to the front surface of the motherboard 3. Fig. 2 shows a schematic diagram in which the safety flexible circuit board 4 is connected to the back surface of the protective film 1, the safety signal line of one safety flexible circuit board 4 is electrically connected to the front surface of the main board 3, and the safety signal line of the other safety flexible circuit board 4 is electrically connected to the back surface of the main board 3. Fig. 3 shows the connection of the safety flexible circuit board 4 to the back surface of the protective film 1, and the electrical connection of the safety signal lines of the safety flexible circuit board 4 to the back surface of the main board 3

In this embodiment, the protection film 1 is coated with a metal conducting layer, the metal conducting layer is electrically connected with the safety signal line 41, the main board forms a signal detection loop through the safety signal line 41 and the metal conducting layer, and can conduct a safety signal, so that when the protection film 1 is disconnected from the safety signal line 41, the signal detection loop is disconnected, the main board 3 can obtain the torn information of the protection film 1, further ensure the safety of data, avoid the theft of useful information by lawless persons, meet the requirement of safety authentication of a display assembly, and improve the safety performance of the display assembly.

It should be noted that, if the protection film 1 is to be torn off by an illegal person, the connection between the metal guiding layer and the safety signal line 41 is easily broken, so that the main board 3 can obtain the occurrence of the situation in time, and at this time, the safety flexible circuit board 4 and the protection film 1 can be bonded together by a viscous general adhesive, so that the possibility that the safety signal line 41 is pulled to be broken is increased.

In this embodiment, the safety flexible circuit board 4 is bonded with the protective film 1, the bonding is that an adhesive force is generated on the surfaces of the safety flexible circuit board 4 and the protective film 1 through an adhesive, the safety flexible circuit board 4, the protective film 1 and the main board 3 are firmly connected together, no external force is applied, the connection between the safety flexible circuit board 4, the protective film 1 and the main board 3 is normal, when the protective film 1 and the display screen 2 are forcibly separated, the connection position between the safety flexible circuit board 4, the protective film 1 and the main board 3 is torn, the damage of the flexible circuit board is caused, the safety signal wire 41 is broken, and the safety signal is abnormal.

Preferably, because the electrical components can give off heat when the operation, avoid the adhesion force of gluing agent to weaken because of the temperature rise, lead to two objects that bond to drop, glue the gluing agent that uses for bonding be high temperature resistant powerful glue, high temperature resistant powerful glue can be resistant 1500 ℃ even higher temperature, effectively guarantees the stability of bonding, avoids safe flexible circuit board 4 unexpected droing to arouse unnecessary trouble.

In the present embodiment, the display screen 2 includes the panel 21 and the display unit provided on the back surface of the panel 21, and the panel 21 can function to protect the display unit below. The protective film 1 is attached to the front surface of the panel 21, and the protective film 1 can function to prevent the panel 21 from being scratched. The display unit has wiring, and the display unit is electrically connected to the main board 3 or other components through the wiring.

In this embodiment, the panel 21 is a fully transparent panel 21, and the structure is shown in fig. 6, so that the safety flexible circuit board 4 and the wiring under the panel 21 can be seen at the outside of the display assembly, or the panel 21 is a non-fully transparent panel 21, and the structure is shown in fig. 7, and the safety flexible circuit board 4 and the wiring under the panel 21 cannot be seen at the outside of the display assembly.

In this embodiment, the panel 21 is a fully transparent panel 21, the protective film 1 has a shielding portion 11, and the black shielding portion 11 is used for shielding the underlying safety flexible circuit board 4 and wiring, so as to prevent lawbreakers from feeling outside the structure inside the display assembly, and improve the safety of the display assembly. The middle part of the protective film 1 has a transparent part 12, the transparent part 12 does not shade the display content of the lower display screen 2, the user can see the display content of the display screen 2 through the transparent part 12, and the shielding part 11 is positioned outside the transparent part 12. The shielding part 11 may be in the form of one row, two upper and lower rows or a ring, and is located above the safety flexible circuit board 4 and the wiring. The shielding part is a light-tight part on the protective film, and the color of the shielding part can be black, red, brown, green and the like.

In this embodiment, the protection film 1 is a toughened film, and has the advantages of easy replacement, high melting point, good wear resistance, strong anti-drop capability, and the like, so that the damage of the liquid crystal display can be effectively prevented, and the maintenance cost of the liquid crystal is reduced. In some embodiments, the protective film 1 may be a PE (polyethylene) protective film 1, a PVC (Polyvinyl chloride ) protective film 1, a TPU (thermoplastic polyurethane elastomer) protective film 1, or the like.

In this embodiment, the flexible circuit board may be FPC or PET. Polyethylene terephthalate is the most important variety of thermoplastic polyester, and the English name of the polyethylene terephthalate is Polyethylene terephthalate, PET or PEIT (hereinafter or called PET) is called polyester resin in common.

Referring to fig. 1 to 8, the present embodiment further provides an electronic device including the display assembly according to any one of the above embodiments. The electronic device 5 may be a POS, a cell phone, a tablet, etc.

Preferably, the electronic device 5 is a POS device, and the structure is shown in fig. 8.

It should be noted that, although the foregoing embodiments have been described herein, the scope of the present utility model is not limited thereby. Therefore, based on the innovative concepts of the present utility model, alterations and modifications to the embodiments described herein, or equivalent structures or equivalent flow transformations made by the present description and drawings, apply the above technical solutions directly or indirectly to other relevant technical fields, all of which are included in the scope of protection of the present patent.

Claims

1. The display component is characterized by comprising a protective film, a display screen, a main board and a safe flexible circuit board;

2. The display module according to claim 1, wherein the protective film is coated with a metal conductive layer, the metal conductive layer is electrically connected to the safety signal line, and the main board forms a signal detection circuit through the safety signal line and the metal conductive layer.

3. A display assembly according to claim 1 or claim 2, wherein the safety flexible circuit board is bonded to the protective film.

4. A display assembly according to claim 1 or 2, wherein the security signal line is electrically connected to the front or back of the motherboard.

5. A display assembly according to claim 1 or claim 2, wherein there are a plurality of said safety flexible circuit boards, said safety flexible circuit boards being connected to opposite sides of said protective film.

6. The display assembly of claim 1, wherein the display screen comprises a panel and a display unit disposed on a back side of the panel, the protective film is attached to a front side of the panel, the panel is a fully transparent panel, and the display unit has traces.

7. A display assembly according to claim 6, wherein the protective film has a shielding portion for shielding the underlying secure flexible circuit board and the traces.

8. A display assembly according to claim 1, wherein the protective film is a toughened film.

9. An electronic device comprising a display assembly as claimed in any one of claims 1 to 8.

10. The electronic device of claim 9, wherein the electronic device is a POS device.