Electrostatic ring and alignment mark connecting structure capable of preventing damage

Abstract

The utility model discloses an electrostatic ring and alignment mark connecting structure capable of preventing injury, the connecting structure is connected with a display, the connecting structure comprises an electrostatic ring arranged on the display, the electrostatic ring is provided with a fitting position, and the fitting position is provided with an expansion section 1; the alignment mark is arranged at the end part of the flexible circuit board, and an expansion section II is arranged on the alignment mark; when the attaching position on the electrostatic ring is in lap joint with the alignment mark, the first expansion section is in lap joint with the second expansion section to increase the lap joint contact area of the attaching position and the alignment mark, the lap joint area of the alignment mark and the electrostatic ring can be increased through matching of the first expansion section and the second expansion section, and the contact area is increased. The resistance is low, the phenomenon that glass is damaged due to sudden impedance change when static electricity is in lap joint with the alignment mark through the attaching position can be avoided, specifically, the attaching position on the electrostatic ring is guided to be in lap joint with the alignment mark, and at the moment, the first expansion section is in lap joint with the second expansion section so as to increase the lap joint contact area of the attaching position and the alignment mark.

Description

Technical Field

[0001] The utility model relates to the field of liquid crystal display, in particular to a connection structure of an electrostatic ring and an alignment mark for preventing being hit. Background Art

[0002] Liquid crystal display screens are mainly composed of LCD (i.e. display) and FPC. Conventional FPC designs only have one set of ground wires. When static electricity is discharged instantly, a large voltage is generated. If static electricity is generated near a flexible circuit board, it is very likely to damage the electrical components on the flexible circuit board, causing the entire flexible circuit board to be scrapped.

[0003] To address this problem, there is a patent document with application number CN201820809102.1, which discloses a touch screen and a flexible circuit board that resists ESD interference, including an IC module, the IC module having a first grounding wire, and also including a second ring-shaped grounding wire of the flexible circuit board, the second grounding wire surrounds the outer ring of the flexible circuit board, and the first grounding wire is located in the area surrounded by the second grounding wire, so that the interference of electrostatic discharge can be avoided, thereby preventing the IC module from being burned. That is, the above-mentioned prior art mainly avoids the interference of electrostatic discharge through the second grounding wire.

[0004] In the prior art, in order to enhance the anti-static ability of the display screen, an electrostatic ring is usually designed around the LCD (the main function is the same as the second grounding wire in the above-mentioned patent document). After the electrostatic ring is set, it will be connected to the T-shaped alignment marks on both sides of the FPC, and connected to the GND of the terminal device through the FPC. When the display screen is affected by static electricity, it will be guided to the ground through the electrostatic ring, thereby protecting the display screen.

[0005] However, there are still some limitations in actual operation, because the smaller the contact point between the glass and the FPC (flexible printed circuit), the greater the resistance (this is because the contact area between the display glass and the FPC is mostly at the point where the FPC and the display glass are aligned, see Figure 1 , the range of this alignment point is small), so static electricity is easily released at the contact point between the glass and FPC, causing static electricity to damage the glass. Utility Model Content

[0006] Based on this, it is necessary to provide a connection structure between an electrostatic ring and an alignment mark that can prevent being damaged in order to solve the above technical problems.

[0007] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0008] A connection structure between an electrostatic ring and an alignment mark for preventing injuries, the connection structure being connected to a display and capable of conducting away static electricity generated on the display, the connection structure comprising: an electrostatic ring, arranged on the display, the electrostatic ring having a fitting position, the fitting position being provided with an extension segment 1; an alignment mark, arranged at the end of a flexible circuit board, the alignment mark being provided with an extension segment 2; when the fitting position on the electrostatic ring overlaps with the alignment mark, the extension segment 1 overlaps with the extension segment 2 to increase the contact area between the fitting position and the alignment mark.

[0009] Furthermore, the alignment mark and the second extension section are formed in one piece or fixed by welding.

[0010] Furthermore, after the alignment mark and the second extension segment are formed, the length of the formed structure 1 is greater than the width of the flexible circuit board.

[0011] Furthermore, the fitting position and the first extension segment are integrally formed and the width of the structure 2 after forming is not less than the width of the structure 1 after the alignment mark and the second extension segment are formed.

[0012] Furthermore, the display includes an upper polarizer, an upper glass, a lower glass and a lower polarizer, the electrostatic ring is located on the surface of the lower glass and is sandwiched in the surrounding edge area between the upper glass and the lower glass, and the upper polarizer and the lower polarizer are respectively arranged on the side surface opposite to the upper glass and the lower glass.

[0013] Furthermore, the length of the lower glass is greater than the length of the upper glass.

[0014] Furthermore, the extension segment 1 is provided with a connecting piece 1, the extension segment 2 is provided with a connecting piece 2, and the connecting piece 1 can be connected to the connecting piece 2 to guide the overlapping of the fitting position and the alignment mark.

[0015] Furthermore, the first connecting member includes a plurality of protrusions arranged on the surface of the first extension segment; the second connecting member includes a plurality of alignment holes arranged on the surface of the second extension segment, and each alignment hole is respectively arranged corresponding to each protrusion.

[0016] Furthermore, the first connector includes a plurality of latching strips disposed on the surface of the first extension segment, and the second connector includes a plurality of latching strip grooves disposed on the surface of the second extension segment, and each latching strip is disposed corresponding to each latching strip groove.

[0017] Furthermore, the length of the structure 1 formed by the alignment mark and the extension section 2 is no greater than the width of the lower glass.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] The utility model can increase the overlap area of ​​the alignment mark and the electrostatic ring by cooperating with the extension segment 1 and the extension segment 2, so that the contact area is increased, and the low resistance can prevent the static electricity from damaging the ITO on the glass due to the impedance mutation when the bonding position and the alignment mark overlap. Specifically, the bonding position on the electrostatic ring is directly guided to overlap the alignment mark. At this time, the extension segment 1 overlaps with the extension segment 2 to increase the contact area between the bonding position and the alignment mark. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the connection between an electrostatic ring and a flexible circuit board in the prior art;

[0021] Figure 2 This is a schematic diagram of the structure when the electrostatic ring provided by the utility model is connected to the flexible circuit board;

[0022] Figure 3 A schematic diagram of a flexible circuit board in the prior art being improved into a flexible circuit board in the present utility model;

[0023] Figure 4 A schematic diagram of an electrostatic ring in the prior art improved into an electrostatic ring in the utility model;

[0024] Figure 5 This is a schematic diagram of the display structure in the utility model;

[0025] Figure 6 It is a schematic diagram of the bump structure in the utility model;

[0026] Figure 7 It is a schematic diagram of the alignment hole structure in the utility model;

[0027] Figure 8 This is a schematic diagram of the structure of the clamping strip in the utility model;

[0028] Fig. 9 It is a schematic diagram of the card slot structure in the utility model.

[0029] The markings in the figure are as follows:

[0030] 1. Electrostatic ring; 2. Flexible circuit board; 3. Structure 1; 4. Structure 2; 5. Upper polarizer; 6. Upper glass; 7. Lower glass; 8. Lower polarizer; 9. Connector 1; 10. Connector 2; 11. Bump; 12. Alignment hole; 13. Positioning strip; 14. Strip slot. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0032] As described in the background art, because the contact point between the glass and the FPC (flexible printed circuit) is small and has a large resistance, static electricity is easily released at the contact point between the glass and the FPC, resulting in the problem of static electricity damaging the glass.

[0033] In order to solve this technical problem, the utility model provides a connection structure between an electrostatic ring and a positioning mark which can prevent being damaged.

[0034] Specifically, please refer to Figure 1-9 , a connection structure between an electrostatic ring and a positioning mark for preventing injury, the connection structure is connected to a display and can guide the static electricity generated on the display, the connection structure includes:

[0035] The electrostatic ring 1 is arranged on the display, and has a fitting position, and an extension section 1 is arranged on the fitting position;

[0036] An alignment mark is arranged at the end of the flexible circuit board 2, and an extension section 2 is arranged on the alignment mark;

[0037] When the laminating position on the electrostatic ring 1 overlaps with the alignment mark, the extension section 1 overlaps with the extension section 2 to increase the contact area between the laminating position and the alignment mark.

[0038] The utility model can increase the overlap area of ​​the alignment mark and the electrostatic ring 1 by cooperating with the expansion section 1 and the expansion section 2, so that the contact area is increased and the resistance is lower (mainly compared with the overlap range in the prior art, and the overlap range in the prior art can be referred to in the appendix of the specification). Figure 1 , 3 and 4) to prevent static electricity from damaging the ITO on the glass due to impedance mutation when the bonding position and the alignment mark overlap. Specifically, the bonding position on the electrostatic ring 1 is directly guided to overlap with the alignment mark. At this time, the extension segment 1 overlaps with the extension segment 2 to increase the contact area between the bonding position and the alignment mark.

[0039] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.

[0040] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0041] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0042] Example 1

[0043] Please refer to Figure 1-3 The connection structure is connected to the display and can guide the static electricity generated on the display. The connection structure includes:

[0044] The electrostatic ring 1 is arranged on the display, and has a fitting position, and an extension section 1 is arranged on the fitting position;

[0045] An alignment mark is arranged at the end of the flexible circuit board 2, and an extension section 2 is arranged on the alignment mark;

[0046] When the laminating position on the electrostatic ring 1 overlaps with the alignment mark, the extension section 1 overlaps with the extension section 2 to increase the contact area between the laminating position and the alignment mark.

[0047] The utility model can increase the overlap area of ​​the alignment mark and the electrostatic ring 1 by cooperating with the expansion section 1 and the expansion section 2, so that the contact area is increased and the resistance is lower (mainly compared with the overlap range in the prior art, and the overlap range in the prior art can be referred to in the appendix of the specification). Figure 1 , 3 and 4) to prevent static electricity from damaging the ITO on the glass due to impedance mutation when the bonding position and the alignment mark overlap. Specifically, the bonding position on the electrostatic ring 1 is directly guided to overlap with the alignment mark. At this time, the extension segment 1 overlaps with the extension segment 2 to increase the contact area between the bonding position and the alignment mark.

[0048] In some specific embodiments, the alignment mark and the second extension section are integrally formed or fixed by welding, preferably integrally formed.

[0049] In some specific embodiments, after the alignment mark and the extension section 2 are formed, the length of the formed structure 1 3 is greater than the width of the flexible circuit board 2. This is set so that the structure 1 3 can fully cooperate with the fitting position of the electrostatic ring 1 to prevent the phenomenon that the structure 1 3 cannot completely overlap with the fitting position of the electrostatic ring 1.

[0050] Example 2

[0051] The connection structure between the electrostatic ring and the alignment mark for preventing injury provided in Example 1 is further optimized. The connection structure is connected to the display and can guide the static electricity generated on the display (in the present utility model, the static electricity guiding method can refer to the prior art and will not be described in detail here). The connection structure includes:

[0052] The electrostatic ring 1 is arranged on the display, and has a fitting position, and an extension section 1 is arranged on the fitting position;

[0053] An alignment mark is arranged at the end of the flexible circuit board 2, and an extension section 2 is arranged on the alignment mark;

[0054] When the laminating position on the electrostatic ring 1 overlaps with the alignment mark, the extension section 1 overlaps with the extension section 2 to increase the contact area between the laminating position and the alignment mark.

[0055] The utility model can increase the overlap area of ​​the alignment mark and the electrostatic ring 1 by cooperating with the expansion section 1 and the expansion section 2, so that the contact area is increased and the resistance is lower (mainly compared with the overlap range in the prior art, and the overlap range in the prior art can be referred to in the appendix of the specification). Figure 1 , 3 and 4) to prevent static electricity from damaging the ITO on the glass due to impedance mutation when the bonding position and the alignment mark overlap. Specifically, the bonding position on the electrostatic ring 1 is directly guided to overlap with the alignment mark. At this time, the extension segment 1 overlaps with the extension segment 2 to increase the contact area between the bonding position and the alignment mark.

[0056] In some specific embodiments, the alignment mark and the second extension section are integrally formed or fixed by welding, preferably integrally formed.

[0057] In some specific embodiments, after the alignment mark and the extension section 2 are formed, the length of the formed structure 1 3 is greater than the width of the flexible circuit board 2. This is set so that the structure 1 3 can fully cooperate with the fitting position of the electrostatic ring 1 to prevent the phenomenon that the structure 1 3 cannot completely overlap with the fitting position of the electrostatic ring 1.

[0058] In some specific embodiments, the fitting position and the extension segment 1 are integrally formed and the width of the structure 2 4 after forming is not less than the width of the structure 1 3 after the alignment mark and the extension segment 2 are formed. This setting is to make the width of the structure 2 4 equal to or greater than the width of the structure 1 3, so that the structure 2 4 can be fully overlapped with the structure 1 3 when overlapping, and even if there is a small offset, it will not affect the resistance.

[0059] Example 3

[0060] The connection structure between the electrostatic ring for preventing injury and the alignment mark provided in Example 1 or 2 is further optimized. In some specific embodiments, the fitting position and the extension segment 1 are integrally formed and the width of the structure 2 4 after forming is not less than the width of the structure 1 3 after the alignment mark and the extension segment 2 are formed. This arrangement is to make the width of the structure 2 4 equal to or greater than the width of the structure 1 3, so that the structure 2 4 can be fully overlapped with the structure 1 3 when overlapped, and even if there is a small offset, it will not affect the resistance.

[0061] In some specific embodiments, the length of the structure 1 3 after the alignment mark and the extension section 2 are formed is not greater than the width of the lower glass 7. This is set so that the edge of the structure 1 3 can only be flush with the edge of the lower glass 7 at most, to prevent the edge of the structure 1 3 from exceeding and affecting normal use.

[0062] In some specific embodiments, the display includes an upper polarizer 5, an upper glass 6, a lower glass 7 and a lower polarizer 8. The electrostatic ring 1 is located on the surface of the lower glass 7 and is sandwiched in the surrounding edge area between the upper glass 6 and the lower glass 7. The upper polarizer 5 and the lower polarizer 8 are respectively arranged on the side surface opposite to the upper glass 6 and the lower glass 7.

[0063] Reference Figure 4 The T-shaped alignment mark on the glass is hollowed out, and the outside is connected to the electrostatic ring with metal ITO, which increases the connection area between the electrostatic ring and the alignment mark and reduces the wiring resistance.

[0064] The electrostatic ring 1 is an ITO metal trace, located on the surface of the lower glass 7, sandwiched between the upper and lower glass pieces and connected to the binding alignment mark, and connected to the GND of the terminal through the FPC. When static electricity contacts the display, it will be guided to the ground through the electrostatic ring. The alignment mark on the FPC is used to align with the alignment mark on the glass to facilitate binding of the FPC.

[0065] The problem in the prior art is that after the glass is bound to the FPC, the contact resistance between the electrostatic ring and the FPC becomes larger. When static electricity passes through, the place where the impedance becomes larger is likely to generate greater energy, that is, static electricity is easily released at the place where the impedance suddenly changes, causing the electrostatic ring to be damaged by static electricity at the place where it contacts the FPC.

[0066] In some specific embodiments, the length of the lower glass 7 is greater than that of the upper glass 6 to facilitate the FPC overlap.

[0067] In some specific embodiments, a connector 1 9 is provided on the extension segment 1, and a connector 2 10 is provided on the extension segment 2. The connector 1 9 can be connected to the connector 2 10 to guide the overlapping of the fitting position and the alignment mark.

[0068] Example 4

[0069] The connection structure between the electrostatic ring for preventing damage and the alignment mark provided in the above embodiments is further optimized, and the connecting member 9 includes a plurality of protrusions 11 arranged on the surface of the extension section 1; the connecting member 10 includes a plurality of alignment holes 12 arranged on the surface of the extension section 2, and each alignment hole 12 is respectively arranged corresponding to each protrusion 11.

[0070] Since the fitting position and the alignment mark are easily misaligned when overlapped, a first embodiment of connector 1 9 and connector 2 10 is proposed. When connector 1 9 and connector 2 10 are connected, each alignment hole 12 can be guided to be plugged into each protrusion 11 respectively. During the plugging process, the protrusion 11 enters the alignment hole 12, so that the position of the flexible circuit board 2 can be quickly calibrated and cannot move at will.

[0071] Example 5

[0072] The connection structure between the electrostatic ring for preventing injury and the alignment mark provided in the above-mentioned embodiments is further optimized, and the connector 1 9 also includes a plurality of locking strips 13 arranged on the surface of the extension section 1, and the connector 2 10 includes a plurality of locking strip grooves 14 arranged on the surface of the extension section 2, and each locking strip 13 is respectively arranged corresponding to each locking strip groove 14.

[0073] A second embodiment is provided for the connector 1 9 and the connector 2 10. The specific structure of the locking strip 13 is a cylinder with cylindrical ends and a guide strip located between the two cylinders. In this way, when docking with the locking strip groove 14, it will not be difficult to insert the locking strip 13 into the locking strip groove 14.

[0074] The use process of the connection structure of the electrostatic ring and the alignment mark provided by the utility model to prevent being hit is as follows: the utility model can increase the overlap area of ​​the alignment mark and the electrostatic ring 1 by cooperating with the expansion section 1 and the expansion section 2, so that the contact area is increased and the resistance is lower (mainly compared with the overlap range in the prior art, and the overlap range in the prior art can refer to the attached manual Figure 1 , 3 and 4) to prevent static electricity from damaging the ITO on the glass due to impedance mutation when the bonding position and the alignment mark overlap. Specifically, the bonding position on the electrostatic ring 1 is directly guided to overlap with the alignment mark. At this time, the extension segment 1 overlaps with the extension segment 2 to increase the contact area between the bonding position and the alignment mark.

[0075] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0076] Obviously, the embodiments described above are only some embodiments of the utility model, rather than all embodiments. The preferred embodiments of the utility model are given in the accompanying drawings, but they do not limit the patent scope of the utility model. The utility model can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the utility model more thorough and comprehensive. Although the utility model is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to replace some of the technical features therein with equivalents. Any equivalent structure made using the contents of the utility model specification and the accompanying drawings, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the utility model.

Claims

1. A connection structure between an electrostatic ring and a positioning mark for preventing injury, wherein the connection structure is connected to a display and can guide static electricity generated on the display, characterized in that: The connection structure comprises: An electrostatic ring (1) is arranged on a display, the electrostatic ring (1) having a fitting position, and the fitting position is provided with an extension section 1; An alignment mark, arranged at an end of the flexible circuit board (2), the alignment mark being provided with a second extension section; When the laminating position on the electrostatic ring (1) overlaps with the alignment mark, the first extension section overlaps with the second extension section to increase the contact area between the laminating position and the alignment mark.

2. The connection structure between the electrostatic ring and the alignment mark for preventing being struck according to claim 1 is characterized in that: The alignment mark and the second extension section are formed in one piece or fixed by welding.

3. The connection structure between the electrostatic ring and the alignment mark for preventing being struck according to claim 1 is characterized in that: After the alignment mark and the second extension section are formed, the length of the formed structure 1 (3) is greater than the width of the flexible circuit board (2).

4. The connection structure between the electrostatic ring and the alignment mark for preventing being struck according to claim 2 or 3, characterized in that: The fitting position and the expansion section 1 are integrally formed and the width of the structure 2 (4) after forming is not less than the width of the structure 1 (3) after the alignment mark and the expansion section 2 are formed.

5. The connection structure between the electrostatic ring and the alignment mark for preventing being struck according to claim 4 is characterized in that: The display comprises an upper polarizer (5), an upper glass (6), a lower glass (7) and a lower polarizer (8); the electrostatic ring (1) is located on the surface of the lower glass (7) and is sandwiched between the upper glass (6) and the lower glass (7) in the surrounding edge region; the upper polarizer (5) and the lower polarizer (8) are respectively arranged on the surface of the upper glass (6) and the lower glass (7) on the side opposite to each other.

6. The connection structure between the electrostatic ring and the alignment mark for preventing being struck according to claim 5 is characterized in that: The length of the lower glass (7) is greater than the length of the upper glass (6).

7. The connection structure between the electrostatic ring and the alignment mark for preventing being struck according to claim 6 is characterized in that: The first extension section is provided with a connecting piece 1 (9), and the second extension section is provided with a connecting piece 2 (10). The first connecting piece (9) can be connected to the second connecting piece (10) to guide the lamination position and the alignment mark to overlap.

8. The connection structure between the electrostatic ring and the alignment mark for preventing being struck according to claim 7 is characterized in that: The first connecting member (9) comprises a plurality of protrusions (11) arranged on the surface of the first extension segment; the second connecting member (10) comprises a plurality of alignment holes (12) arranged on the surface of the second extension segment, and each alignment hole (12) is arranged corresponding to each protrusion (11).

9. The connection structure of the electrostatic ring and the alignment mark for preventing being struck according to claim 7 is characterized in that: The first connecting member (9) further comprises a plurality of latching strips (13) arranged on the surface of the first extension segment, and the second connecting member (10) comprises a plurality of latching strip grooves (14) arranged on the surface of the second extension segment, each latching strip (13) being arranged corresponding to each latching strip groove (14).

10. The connection structure of the electrostatic ring and the alignment mark for preventing being struck according to claim 4, characterized in that: The length of the structure 1 (3) after the alignment mark and the extension section 2 are formed is no greater than the width of the lower glass (7).

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