WO2019023977A1

WO2019023977A1 - Safety protection structure and method for liquid crystal touch screen, and financial payment device

Info

Publication number: WO2019023977A1
Application number: PCT/CN2017/095611
Authority: WO
Inventors: 吴冬周
Original assignee: 福建联迪商用设备有限公司
Priority date: 2017-08-02
Filing date: 2017-08-02
Publication date: 2019-02-07
Also published as: CN107636674A; CN107636674B

Abstract

Provided is a safety protection structure for a liquid crystal touch screen, comprising: a liquid crystal module; a structural substrate; a PCB; and a key. The liquid crystal module is provided with a safety contact, and comprises a fixing portion for fixing the safety contact. The liquid crystal module, the structural substrate and the PCB are sequentially arranged from top to bottom. The fixing portion has one end fixed to an inner surface of the liquid crystal module and the other end passing through the structural substrate and positioned between the structural substrate and the PCB. The key is provided at an inner surface of the PCB and abuts against the fixing portion. Also provided are a financial payment device and a safety protection method for a liquid crystal touch screen. The safety protection structure for a liquid crystal touch screen can solve a problem in which provision of a contact under a liquid crystal touch screen exerts a force on a liquid crystal module, thereby reducing costs, and enhancing production convenience.

Description

LCD touch screen security protection structure, protection method, and financial payment device

[0001] The present invention relates to the field of financial payment, and in particular, to a liquid crystal touch screen security protection structure, a protection method, and a financial payment device.

Background technique

[0002] At present, liquid crystal display is widely used in the financial payment industry. The safety design of liquid crystal is also particularly important. The liquid crystal touch screen should be prevented from being removed. For example, the protection of the conventional POS liquid crystal is prevented, or the liquid crystal of the POS is protected. Touch screen protection.

[0003] In the prior art, in order to prevent the liquid crystal touch screen from being removed, the existing protection schemes are as follows: 1. By connecting one FPC cable at each end of the touch screen, a safety signal is provided on the FPC cable, The FPCs at both ends of the screen are fixed to the front case to prevent the touch screen from being removed. If you remove the touch screen from the front of the device, you need to break the two FPCs to remove them. This will cause the safety signal on the FPC to break and trigger a security attack. The solution has high requirements for liquid crystals and touch screens, and needs to be customized with liquid crystal manufacturers, which is costly and inconvenient to supply. 2. A tear-proof PTF is applied between the bottom of the liquid crystal and the front case. If the liquid crystal is removed, the tear-proof PTF will be broken, resulting in a security attack. However, the ripstop PTF has low reliability and cannot be mass-produced, and it is practically unusable. 3, the traditional PO S liquid crystal plus contact protection scheme, on the one hand requires a small liquid crystal (only 2.4 inches or 2.8 inches), otherwise it can not add contacts on the back, which will cause liquid crystal ripple, yellowing and other faults (traditional The POS will also appear, but the fault is within the acceptable range. It cannot be used. On the other hand, the liquid crystal must be installed between the main board and the front case, and the liquid crystal is caught by the front case to prevent the liquid crystal from being pushed out by the contact. These two limitations have prevented smart POS from adding contacts to protect LCDs and touch screens like traditional POS.

technical problem

The technical problem to be solved by the present invention is to provide a liquid crystal touch screen security protection structure, which solves the problem that the conventional method uses a contact to protect the liquid crystal and the touch screen, and the liquid crystal is stressed due to the increase of the contact;

[0005] Further, the present invention further provides a financial payment device based on the above-mentioned liquid crystal touch screen security protection structure; [0006] Further, the present invention further provides a liquid crystal touch screen security protection based on the above liquid crystal touch screen security protection structure. method. Problem solution

Technical solution

[0007] In order to solve the above technical problem, the technical solution adopted by the present invention is:

[0008] A liquid crystal touch screen security protection structure, comprising a liquid crystal module, a structural substrate, a PCB board and a button, the liquid crystal module is provided with a safety contact, and further comprises a fixing portion for fixing the safety contact, the liquid crystal The module, the structure substrate and the PCB board are arranged in this order from top to bottom, one end of the fixing portion is fixedly disposed on the inner surface of the liquid crystal module, and the other end of the fixing portion penetrates the structure base body and is located on the structure base body and the PCB Between the plates, the button is disposed on an inner surface of the PCB and abuts the fixing portion.

[0009] A financial payment device includes the above-described liquid crystal touch screen security protection structure.

[0010] A liquid crystal touch screen security protection method adopts the liquid crystal touch screen security protection structure described above.

Advantageous effects of the invention

Beneficial effect

[0011] The beneficial effects of the present invention are:

[0012] (1) Adding a fixing portion for fixing the safety contact, and cooperating with setting the above-mentioned button, thereby externally applying a force to the button through the P CB plate, and the force is transmitted to the fixed contact with the button after the button is pressed. In the upper part, the force is further transmitted to the structural base through the fixing portion, so that the force applied to the button is transmitted to the structural base 吋, and the direction is changed to achieve lateral force, so that the liquid crystal touch panel body is not subjected to force. Avoiding the safety contact at the bottom of the liquid crystal directly applying pressure to the liquid crystal, which can eliminate the problem that the liquid crystal module is stressed due to the increase of the contact under the liquid crystal touch screen;

[0013] (2) The design of the above protective structure can change the liquid crystal touch panel from the original customization to the general purpose, and has the advantages of reducing cost and improving production convenience.

Brief description of the drawing

DRAWINGS

1 is a longitudinal cross-sectional view showing a liquid crystal touch panel security protection structure according to Embodiment 1 of the present invention;

2 is a longitudinal cross-sectional view showing a liquid crystal touch panel security protection structure according to Embodiment 2 of the present invention;

3 is a longitudinal cross-sectional view showing a liquid crystal touch panel security protection structure according to a third embodiment of the present invention.

[0017] Description of the label: [0018] 1, the liquid crystal module; 2, the structure of the substrate; 21, through hole; 3, PCB board; 31, mounting holes; 4, the fixed part; 5, the button; 51, the button body; 52, the extension. Detailed ways

[0019] In order to explain the technical content, the objects and effects achieved by the present invention in detail, the embodiments will be described below in conjunction with the accompanying drawings.

[0020] The most critical idea of the present invention is to change the direction of the force applied to the button to achieve lateral force to prevent the safety contact at the bottom of the liquid crystal from directly applying pressure to the liquid crystal.

[0021] Referring to FIG. 1-3, a liquid crystal touch screen security protection structure includes a liquid crystal module 1, a structure base 2, a PCB board 3, and a button 5. The liquid crystal module 1 is provided with a safety contact, and includes In the fixing portion 4 of the fixed safety contact, the liquid crystal module 1, the structural base 2 and the PCB board 3 are disposed in this order from top to bottom, and one end of the fixing portion 4 is fixedly disposed on the inner surface of the liquid crystal module 1, The other end of the fixing portion 4 penetrates the structure base 2 and is located between the structure base 2 and the PCB board 3. The button 5 is disposed on the inner surface of the PCB board 3 and abuts against the fixing portion 4.

[0022] As can be seen from the above description, the beneficial effects of the present invention are:

[0023] (1) Adding a fixing portion for fixing the safety contact, and cooperating with setting the above-mentioned button, thereby externally applying a force to the button through the P CB plate, and transmitting the force to the fixed contact with the button after the button is pressed In the upper part, the force is further transmitted to the structural base through the fixing portion, so that the force applied to the button is transmitted to the structural base 吋, and the direction is changed to achieve lateral force, so that the liquid crystal touch panel body is not subjected to force. Avoiding the safety contact at the bottom of the liquid crystal directly applying pressure to the liquid crystal, which can eliminate the problem that the liquid crystal module is stressed due to the increase of the contact under the liquid crystal touch screen;

[0024] (2) The design of the above protective structure can change the liquid crystal touch panel from the original customization to the general purpose, and has the advantages of lowering the cost and improving the production convenience.

[0025] Further, the other end of the fixing portion 4 is a free end.

As can be seen from the above description, as a specific structural example, the other end of the fixing portion may be a free end.

[0027] Further, the other end of the fixing portion 4 has a distance from the inner surface of the PCB board 3.

[0028] Further, the distance between the other end of the fixing portion 4 and the inner surface of the PCB board 3 is 0-20 mm. [0029] As can be seen from the above description, as a specific structural example, the other end of the fixing portion can be suspended, and preferably, the distance between the other end of the fixing portion and the inner surface of the PCB board is 0-20 mm.

[0030] Further, the structural base 2 is provided with a through hole 21, and the other end of the fixing portion 4 is via the through hole.

21 passes through the structural base 2, and the fixing portion 4 has a distance from the wall of the through hole.

[0031] As can be seen from the above description, as a specific structural example, the hole can be bored in the structural base body to form the through hole, and the fixing portion and the hole wall of the through hole can not contact each other. Further, There is a distance between the people.

Further, the fixing portion 4 includes two side faces disposed opposite to each other, the button 5 abuts against a side surface of the fixing portion 4, and the other side surface of the fixing portion 4 is adjacent to the structure base 2.

[0033] As can be seen from the above description, as a specific structural example, the two opposite sides of the opposite direction can be designed, one side for resisting the button and the other side for being close to but not contacting the structural member or the structural member. The hole wall of the through hole.

[0034] Further, a distance between a side surface of the fixing portion 4 and the structural base 2 is 1 to 100 mm, and a distance between the other side surface of the fixing portion 4 and the structural base 2 is 1 ~100mm.

[0035] As can be seen from the above description, as a specific structural example, the distance between one side surface of the fixing portion and the structural member (the hole wall on the side adjacent to one side of the through hole and the fixing portion) is mm. The distance between the other side surface of the fixing portion and the structural member (the hole wall on the side adjacent to the other side of the fixing portion) is mm.

[0036] Further, one side surface of the fixing portion 4 is an inclined surface, and the button 5 abuts against the fixing portion 4 by abutting against the inclined surface.

[0037] As can be seen from the above description, as a specific structural example, one side of the fixing portion is designed as an inclined surface

The inclined surface is tilted toward the button direction and is used to resist the button.

[0038] Further, the button 5 includes a button body 51 and a protrusion 5 extending from the button body 51.

2, the button body 51 is disposed on the PCB board 3, and the protruding portion 52 faces and abuts the fixing portion

4.

[0039] As can be seen from the above description, as a specific structural example, the button includes a button body and a protruding portion, and the protruding portion is for abutting against the fixing portion, for example, against the inclined surface of the fixing portion, and the button body is solderably disposed at PCB board [0040] Further, a distance between a top of the button body 51 and a bottom of the structural base 2 is provided, and a distance between a top of the button body 51 and a bottom of the structural base 2 is 1-100 mm.

[0041] As can be seen from the above description, as a specific structural example, on the basis of the foregoing button structure, there is a distance between the top of the button body and the bottom of the structure base, that is, the interval is set, and the design of the above distance can be more convenient. Effectively conduct force transmission. In the above description of the top and bottom orientations, the direction is close to the liquid crystal module, and the direction is close to the PCB board.

[0042] Further, the structural base 2 is provided with a through hole, the fixing portion 4 extends into the through hole 21, and the fixing portion 4 includes a top surface, a bottom surface, and a top surface and a bottom surface respectively. a first side and a second side opposite to each other, the top surface being fixedly connected to an inner surface of the liquid crystal module 1, the first side being adjacent to a hole wall of the through hole 21 and having a hole wall with the through hole The button 5 includes a button body 51 and a protrusion 52 extending from the button body 51. The protrusion 52 abuts the second side, and the bottom surface is located on the structure base 2 and the PCB board 3. between.

[0043] As can be seen from the above description, as a specific structural example, the fixing portion, the structural base, and the button are designed by the above-described structural design, and the integral structure formed thereof has the advantage that the conduction of force can be more stably and efficiently performed.

Further, the second side surface is an inclined surface that is inclined toward the protruding portion 52.

As can be seen from the above description, as a specific structural example, the second side surface of the fixing portion is an inclined surface that is inclined toward the protruding portion to facilitate the abutment of the protruding portion of the button or the button.

Further, the inner surface of the liquid crystal module 1 is provided with a metal material, the fixing portion 4 is made of a magnetic material, and one end of the fixing portion 4 is magnetically adsorbed and fixed to the metal material.

As apparent from the above description, as a specific structural example, the metal material is designed on the liquid crystal module, and is magnetically fixed to the fixing portion of the magnetic material. The specific structural form of the metal material can be designed according to actual conditions, for example, a hierarchical structure or a small block shape or the like. The specific formation of the metal material may be carried out later on the liquid crystal module, or may be an additional process of forming the complete liquid crystal module.

Further, the inner surface of the liquid crystal module 1 is provided with a magnetic material, the fixing portion 4 is made of a metal material, and one end of the fixing portion 4 is magnetically adsorbed and fixed on the magnetic material.

[0049] As can be seen from the above description, as a specific structural example, by designing the above magnetic on the liquid crystal module The material is magnetically fixed to the fixed portion of the metal material. The specific structural form of the magnetic material can be designed according to actual conditions, for example, a hierarchical structure or a small block shape or the like. The specific formation method of the magnetic material may be performed later on the liquid crystal module, or may be an additional process of performing the magnetic material in the same manner as forming a complete liquid crystal module.

Further, an adhesive layer is disposed on an inner surface of the liquid crystal module 1, and one end of the fixing portion 4 is adhered to the liquid crystal module 1 through the adhesive layer.

[0051] As apparent from the above description, as a specific structural example, it is also possible to bond the fixing portion to the liquid crystal module by introducing the above-mentioned adhesive material. The adhesive material can be selected from any adhesive material such as AB glue or double-sided tape. Specifically, the bonding material may be a layered structure, that is, an adhesive layer.

[0052] Further, the PCB board 3 is provided with a mounting hole 31 corresponding to the through hole 21, and the other end of the fixing portion 4 is located above the mounting hole 31.

[0053] As can be seen from the above description, as a specific structural example, the PCB board may be provided with a mounting hole corresponding to the through hole, and the mounting 吋, one end of the fixing portion sequentially passes through the mounting hole and the through hole until being fixed to the liquid crystal module On the bottom surface, the button provided on the PCB board is then pressed against the fixing portion, so that the installation can be completed, and the installation is convenient.

Further, the shape of the longitudinal section of the fixing portion 4 is a square, a triangle or a trapezoid.

[0055] As can be seen from the above description, as a specific structural example, the shape of the fixing portion can be selectively designed according to actual conditions, for example, the longitudinal section thereof can be designed to be square, triangular or trapezoidal.

[0056] Further, the button 5 is soldered on the inner surface of the PCB board 3.

[0057] As can be seen from the above description, as a specific structural example, the keys can be directly placed on the inner surface of the PCB by soldering.

[0058] A financial payment device comprising the above-described liquid crystal touch screen security protection structure.

[0059] A liquid crystal touch screen security protection method adopts the above-mentioned liquid crystal touch screen security protection structure.

Referring to FIG. 1, the first embodiment of the present invention is:

[0061] The financial payment device of this embodiment is a POS machine, and the POS device includes a liquid crystal touch screen security protection structure, and the liquid crystal touch screen security protection structure includes a liquid crystal module 1, a structure base 2, a PCB board 3, a button 5, and The fixing portion 4 of the safety contact is fixed, the liquid crystal module 1 is provided with a safety contact, and the liquid crystal module 1, the structural base 2 and the PCB board 3 are sequentially arranged from top to bottom, and the structural base 2 is provided with a pass. Hole 21, of the fixing portion 4 Through the through hole 21 . The fixing portion 4 is a square cylinder structure prepared by a magnetic material, and the fixing portion 4 of the square cylinder structure includes a top surface, a bottom surface, and opposite first and second sides respectively disposed between the top surface and the bottom surface a side surface of the liquid crystal module 1 is provided with a metal material layer, the top surface is magnetically fixed to the inner surface of the liquid crystal module 1, and the first side surface is close to but not contacting the hole wall of the through hole adjacent thereto, The button 5 includes a button body 51 and a protruding portion 52 extending from the button body 51. The button body 51 is welded to the inner surface of the PCB board 3, and the second side surface is inclined toward the protruding portion 52. The protruding portion 52 abuts against the second side surface, and the bottom surface is located between the structural base 2 and the PCB board 3. Here, the symbol a in the figure represents the point of force.

[0062] The assembly method of the liquid crystal touch screen safety protection structure of the embodiment is: dig a hole in the structural base to form the through hole; magnetically adsorb the top surface of the fixing portion on the inner surface of the liquid crystal module; The bottom surface passes through and protrudes through the through hole, and the same side does not contact the inner surface of the PCB board; the first side of the fixing portion is close to the hole wall of the through hole adjacent thereto; the assembly of the liquid crystal module, the structural base body and the fixing portion is completed; Then, the button body is soldered on the inner surface of the PCB board, and the protruding portion of the button soldered on the PCB board is pressed against the second side to complete the assembly.

Referring to FIG. 2, the second embodiment of the present invention is:

[0064] The financial payment device of the embodiment is a POS machine, and the POS device includes a liquid crystal touch screen security protection structure. The liquid crystal touch screen security protection structure is the same as the liquid crystal touch screen security protection structure of the first embodiment, and the difference lies only in The PCB board 3 is provided with a mounting hole 31 corresponding to the through hole 21, and a bottom surface of the fixing portion 4 is located above the mounting hole 31.

[0065] The assembling method of the liquid crystal touch screen safety protection structure of the embodiment is: digging a hole in the structural base, forming the through hole, digging a hole in the PCB board, forming a mounting hole, and soldering the button body of the button On the inner surface of the PCB; pre-assembling the liquid crystal module, the structural substrate and the PCB; firstly passing the top surface of the fixing portion through the mounting hole and the through hole, and adjusting the position of the fixing portion so that the first side of the fixing portion is close to a hole wall of the adjacent through hole, and a protruding portion of the button welded on the PCB board can be pressed against the second side; then the fixing portion is magnetically attracted to the inner surface of the liquid crystal module, and the bottom surface of the fixed portion is located The structure substrate and the PCB board are not in contact with the inner surface of the PCB board; the assembly is completed.

Referring to FIG. 3, Embodiment 3 of the present invention is:

[0067] The financial payment device of this embodiment is a POS machine, and the POS device includes a liquid crystal touch screen security protection structure, The liquid crystal touch screen security protection structure is the same as the liquid crystal touch screen security protection structure of the first embodiment, except that the longitudinal section of the fixing portion 4 is a right-angled trapezoid, and the second side is a tilted waist corresponding to a right-angled trapezoid. The surface corresponds to the long base of the right-angled trapezoid, the bottom surface corresponds to the short base of the right-angled trapezoid, and the first side corresponds to the vertical waist of the right-angled trapezoid.

[0068] In summary, the liquid crystal touch screen security protection structure provided by the invention can prevent the safety contact at the bottom of the liquid crystal from directly applying pressure to the liquid crystal, and eliminate the problem that the liquid crystal module is stressed due to the increase of the contact under the liquid crystal touch screen. It has the advantage of reducing costs and improving production convenience.

The above description is only an embodiment of the present invention, and thus does not limit the scope of the invention, and the equivalent transformations made by the description of the present invention and the contents of the drawings may be directly or indirectly applied in the related technical field.

The same is included in the scope of patent protection of the present invention.

[0070]

Claims

Claim

A liquid crystal panel security protection structure comprising a liquid crystal module, a structural substrate, a PCB board and a button, wherein the liquid crystal module is provided with a safety contact, and further comprising a fixing portion for fixing the safety contact, the liquid crystal The module, the structure substrate and the PCB board are arranged in this order from top to bottom, one end of the fixing portion is fixedly disposed on the inner surface of the liquid crystal module, and the other end of the fixing portion penetrates the structure base body and is located on the structure base body and the PCB Between the plates, the button is disposed on an inner surface of the PCB and abuts the fixing portion.

The liquid crystal panel security protection structure according to claim 1, wherein the other end of the fixing portion is a free end.

The liquid crystal panel security protection structure according to claim 2, wherein the other end of the fixing portion has a distance from an inner surface of the PCB.

The liquid crystal panel security protection structure according to claim 3, wherein a distance between the other end of the fixing portion and an inner surface of the PCB board is 0-20 mm.

The liquid crystal panel security protection structure according to claim 1, wherein the structural base body is provided with a through hole, and the other end of the fixing portion passes through the structural base through the through hole, and the fixing portion There is a distance from the wall of the hole of the through hole.

The liquid crystal panel security protection structure according to claim 1 or 5, wherein the fixing portion includes two side faces disposed opposite to each other, the button abuts a side surface of the fixing portion, and the other side of the fixing portion is adjacent to The structural substrate.

The liquid crystal panel security protection structure according to claim 5, wherein a distance between a side surface of the fixing portion and the structural member is 1-100 mm, and the other side of the fixing portion and the structure The distance between the pieces is l-100mm.

The liquid crystal panel security protection structure according to claim 6, wherein one side surface of the fixing portion is an inclined surface, and the button is pressed against the inclined surface to abut the fixing portion.

The LCD screen security protection structure according to claim 6, wherein the button comprises a button body and a protruding portion extending from the button body, and the button body is disposed on the PCB board. The extension portion faces and abuts against the fixing portion. [Claim 10] The liquid crystal panel security protection structure according to claim 9, wherein a distance between a top of the button body and a bottom of the structure base, a top of the button body and the structure The distance between the bottoms of the substrates is l-100 mm.

[Claim 11] The liquid crystal panel security protection structure according to claim 1, wherein the structural base body is provided with a through hole, the fixing portion extends into the through hole, and the fixing portion includes a top surface a bottom surface, and a first side and a second side opposite to each other disposed between the top surface and the bottom surface, the top surface being fixedly connected to the inner surface of the liquid crystal module, the first side being close to the hole wall of the through hole And having a distance from the hole wall of the through hole, the button comprises a button body and a protruding portion extending from the button body, the protruding portion abuts the second side, and the bottom surface is located at the structural base Between the PCB and the board.

[Claim 12] The liquid crystal panel security protection structure according to claim 11, wherein the second side surface is an inclined surface that is inclined toward the protruding portion.

[Claim 13] The liquid crystal panel security protection structure according to claim 1, wherein the liquid crystal module is provided with a metal material on the inner surface thereof, and the fixing portion is made of a magnetic material, and the fixing portion is One end is magnetically adsorbed and fixed on the metal material.

[Claim 14] The liquid crystal panel security protection structure according to claim 1, wherein a magnetic material is disposed on an inner surface of the liquid crystal module, and the fixing portion is made of a metal material, and the fixing portion is One end is magnetically attached to the magnetic material.

[Claim 15] The liquid crystal panel security protection structure according to claim 1, wherein an inner surface of the liquid crystal module is provided with an adhesive material, and one end of the fixing portion is adhered by the adhesive material On the liquid crystal module.

[Claim 16] The liquid crystal panel security protection structure according to claim 1, wherein the PCB board is provided with a mounting hole corresponding to the through hole, and the other end of the fixing portion is located at the mounting hole Above.

The liquid crystal panel security protection structure according to claim 1, wherein the longitudinal section of the fixing portion has a square, triangular or trapezoidal shape.

[Claim 18] The liquid crystal panel security protection structure according to claim 1, wherein the button is soldered on an inner surface of the PCB. [Claim 19] A financial payment device, comprising the liquid crystal panel security protection structure according to any one of claims 1-18.

[Claim 20] A liquid crystal panel security protection method according to any one of claims 1 to 18, wherein the liquid crystal panel security protection structure according to any one of claims 1 to 18.