Liquid crystal display screen for enhancing connection reliability of FPC and LCD

Abstract

The utility model discloses a liquid crystal display screen for enhancing the connection reliability of an FPC (Flexible Printed Circuit) and an LCD (Liquid Crystal Display), which comprises a liquid crystal display screen main body, and the liquid crystal display screen main body comprises lower glass, an FPC body, upper glass, an upper polaroid and a lower polaroid; a binding area is arranged in the middle of the bottom of the front face of the lower piece of glass, one side of the FPC body is connected to the binding area, and a double-faced adhesive tape adheres to the position, close to the right side, of the back face of the FPC body. The acting force generated by misoperation does not directly act on the binding part of the FPC body, that is, the acting force does not directly act on the binding area, so that the connection firmness of the binding part and the binding area can be enhanced, the connection reliability of the FPC body and the lower glass can be improved, the probability that the FPC body is separated from the lower glass can be reduced, and the service life of the FPC body can be prolonged. And normal operation of the display screen can be further ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid crystal display screens, in particular to a liquid crystal display screen capable of enhancing the connection reliability between an FPC and an LCD. Background Art

[0002] Liquid crystal display is a type of flat panel display, which is mainly composed of upper polarizer, upper glass, lower glass, lower polarizer, driver IC and FPC. The lower glass is larger than the upper glass. After the lower glass and the upper glass are installed together, a binding area for binding the driver IC and FPC needs to be reserved.

[0003] We found that since the FPC is bonded to the lower glass by ACF hot pressing, the contact area between the FPC and the glass is the bonding area. Due to the limited contact area after bonding, this will directly affect the connection reliability between the FPC and the lower glass, that is, the pulling force formed is insufficient. In actual applications, if the operation is improper, the FPC is easily peeled off from the lower glass, thereby affecting the normal operation of the display.

[0004] Therefore, in view of the technical defects of the prior art such as those mentioned above, we have specifically designed a liquid crystal display screen that enhances the reliability of the connection between the FPC and the LCD. Utility Model Content

[0005] The utility model aims to overcome the above-mentioned shortcomings and provide a technical solution that can solve the above-mentioned problems.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a liquid crystal display screen that enhances the reliability of the connection between an FPC and an LCD, comprising a liquid crystal display screen body, wherein the liquid crystal display screen body comprises a lower glass, an FPC body, an upper glass, an upper polarizer and a lower polarizer; a binding area is provided at the center of the bottom of the front side of the lower glass, and one side of the FPC body is connected to the binding area; a double-sided tape is bonded to the back side of the FPC body and close to the right side, and the back side of the FPC body is connected to the back side of the lower glass through the double-sided tape.

[0007] As a further solution of the utility model: a binding portion is provided at the top right side of the FPC body, and a bending portion is provided at the connection between the binding portion and the FPC body.

[0008] As a further solution of the utility model: a sticking area for convenient sticking of double-sided tape is reserved at the bottom of the back side of the lower glass.

[0009] As a further solution of the utility model: the binding part is bound and connected at the front side of the binding area and close to the bottom, the FPC body is bent through the bending part to the back bottom of the lower glass and is bonded and fixed in the pasting area by double-sided tape.

[0010] As a further solution of the utility model: the width of the double-sided tape is the same as the width of the FPC body, and when the FPC body is bonded to the back of the lower glass, the left end of the FPC body extends out from the left bottom of the back of the lower glass.

[0011] As a further solution of the utility model: it also includes a driver IC, which is installed in the binding area and located on the top of the binding part, and a gap is left between the driver IC and the binding part.

[0012] As a further solution of the utility model: the upper glass is installed on the front side of the lower glass, the length of the upper glass is shorter than the length of the lower glass, and a gap is left between the bottom of the upper glass and the top of the binding area.

[0013] As a further solution of the utility model: the upper polarizer is installed at the center of the front side of the upper glass, and the lower polarizer is installed at the back side of the lower glass and at a position corresponding to the upper glass.

[0014] As a further solution of the utility model: a release film is also bonded to the side of the double-sided adhesive tape away from the FPC body, and the size of the release film is the same as that of the double-sided adhesive tape.

[0015] As a further solution of the utility model: a protective glue is also provided on the binding area, and the protective glue covers the driver IC and the binding part.

[0016] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0017] In the present application, through the designed FPC body, binding part, bending part and double-sided tape structures, the FPC body can be placed on the back of the lower glass by bending, and the FPC body and the lower glass are adhered together by double-sided tape, so that the left end of the FPC body extends from the back of the lower glass. When the FPC body is pulled out during the operation, since the back of the FPC body is still tightly adhered to the lower glass by double-sided tape, the force will not directly act on the binding part of the FPC body, that is, it will not directly act on the binding area, thereby enhancing the connection firmness between the binding part and the binding area, improving the connection reliability of the FPC body and the lower glass, and reducing the probability of the FPC body detaching from the lower glass, which can further ensure the normal operation of the display screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front view structural schematic diagram of a liquid crystal display screen for enhancing the connection reliability between FPC and LCD according to the utility model;

[0019] Figure 2It is a side view structural schematic diagram of a liquid crystal display screen for enhancing the connection reliability between FPC and LCD according to the utility model;

[0020] Figure 3 It is a rear view structural schematic diagram of a liquid crystal display screen for enhancing the connection reliability between FPC and LCD according to the utility model;

[0021] Figure 4 This is a front view structural diagram of the FPC body of the utility model after being bent to the back of the lower glass;

[0022] Figure 5 It is a side view structural schematic diagram of the FPC body of the utility model after being bent to the back of the lower glass.

[0023] The reference numerals and names in the figures are as follows:

[0024] 1. Lower glass; 2. Binding area; 3. FPC body; 301. Binding part; 302. Bending part; 303. Double-sided tape; 4. Driver IC; 5. Upper glass; 6. Upper polarizer; 7. Lower polarizer. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-5 A liquid crystal display screen with enhanced reliability of connection between FPC and LCD includes a liquid crystal display screen body, wherein the liquid crystal display screen body includes a lower glass 1, an FPC body 3, an upper glass 5, an upper polarizer 6 and a lower polarizer 7; a binding area 2 is provided at the center of the bottom of the front side of the lower glass 1, and one side of the FPC body 3 is connected to the binding area 2; a double-sided adhesive 303 is bonded to the back side of the FPC body 3 and close to the right side, and the back side of the FPC body 3 is connected to the back side of the lower glass 1 through the double-sided adhesive 303.

[0027] It should be noted that the FPC body 3 is bent and placed on the back of the lower glass 1, and the FPC body 3 and the lower glass 1 are adhered together by double-sided tape 303, so that the left end of the FPC body 3 extends from the back of the lower glass 1. When the FPC body 3 is pulled out during the operation, since the back of the FPC body 3 is still tightly adhered to the lower glass 1 by the double-sided tape 303, the force will not directly act on the binding part 301 of the FPC body 3.

[0028] See also Figure 3-5In this embodiment, a binding portion 301 is provided at the top right side of the FPC body 3, and a bending portion 302 is provided at the connection between the binding portion 301 and the FPC body 3; a pasting area for convenient pasting of double-sided tape 303 is reserved at the bottom back of the lower glass 1; the binding portion 301 is bound and connected to the front of the binding area 2 and close to the bottom, and the FPC body 3 is bent through the bending portion 302 and reaches the bottom back of the lower glass 1 and is bonded and fixed in the pasting area through the double-sided tape 303.

[0029] Specifically, the binding portion 301 is used for binding connection with the binding area 2, and the bending portion 302 is used for bending the FPC body 3, so that the FPC body 3 can be conveniently bent to the back of the lower glass 1, and a sticking area is set on the back of the lower glass 1 to facilitate the sticking of the double-sided tape 303, so that the right side of the entire FPC body 3 can be stuck and fixed to the sticking area to improve stability.

[0030] See also Figure 3-4 In this embodiment, the width of the double-sided tape 303 is the same as the width of the FPC body 3, and when the FPC body 3 is bonded to the back of the lower glass 1, the left end of the FPC body 3 extends out from the left bottom of the back of the lower glass 1.

[0031] Specifically, the width of the double-sided tape 303 is the same as the width of the FPC body 3, the purpose of which is to facilitate the pasting of the double-sided tape 303 and avoid the possibility of excess double-sided tape 303 causing overflow. At the same time, after pasting, the FPC body 3 extends from the left side of the back side of the lower glass 1, and the connection area between the FPC body 3 and the lower glass 1 can obtain good tensile resistance.

[0032] See also Figure 1-2 In this embodiment, a driver IC4 is also included. The driver IC4 is installed in the binding area 2 and is located on the top of the binding part 301 , and a gap is left between the driver IC4 and the binding part 301 .

[0033] Specifically, the driver IC4 is used for connection with other components, and a gap is provided between the driver IC4 and the binding portion 301 to prevent the two from being attached together and affecting each other.

[0034] See also Figure 1-2 In this embodiment, the upper glass 5 is installed on the front side of the lower glass 1, and the length of the upper glass 5 is smaller than that of the lower glass 1, and there is a gap between the bottom of the upper glass 5 and the top of the binding area 2; the upper polarizer 6 is installed at the center of the front side of the upper glass 5, and the lower polarizer 7 is installed on the back side of the lower glass 1 and at a position corresponding to the upper glass 5.

[0035] Specifically, the length of the upper glass 5 is smaller than that of the lower glass 1. The purpose is to leave enough area on the lower glass 1 for binding the FPC body 3 and the driver IC 4, which is convenient for connection and ensures the normal operation of the display screen. The installation design of the upper polarizer 6 and the lower polarizer 7 ensures their normal operation.

[0036] See also Figure 2-3 In this embodiment, a release film is also adhered to the side of the double-sided adhesive tape 303 away from the FPC body 3 , and the size of the release film is the same as that of the double-sided adhesive tape 303 .

[0037] Specifically, when the FPC body 3 is not bonded to the lower glass 1 , a release film is provided on the double-sided adhesive 303 to ensure that the bonding surface of the double-sided adhesive 303 always maintains a good bonding effect and avoids the possibility of failure due to contact with external dust and moisture.

[0038] See also Figure 5 In this embodiment, a protective glue is further provided on the binding area 2 , and the protective glue covers the driver IC 4 and the binding part 301 .

[0039] Specifically, the driver IC 4 and the binding part 301 are protected by protective glue on the binding area 2 , so that the connection stability between the driver IC 4 and the binding part 301 on the binding area 2 can be improved.

[0040] When using:

[0041] The staff first binds the binding portion 301 of the FPC body 3 to the binding area 2 of the lower glass 1 (such as Figure 1 shown);

[0042] Then, the release film on the double-sided adhesive 303 is torn off, and the FPC body 3 is bent toward the back of the lower glass 1 through the bending portion 302, so that the FPC body 3 comes to the back of the lower glass 1, and the left end of the FPC body 3 extends from the left bottom of the lower glass 1. Then, the double-sided adhesive 303 on the FPC body 3 is evenly pressed, and the FPC body 3 can be firmly bonded to the back of the FPC body 3 by using the double-sided adhesive 303, thereby improving the connection reliability between the FPC body 3 and the lower glass 1 (such as Figure 4 and Figure 5 shown).

[0043] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A liquid crystal display screen with enhanced connection reliability between FPC and LCD, characterized in that: It comprises a liquid crystal display screen body, wherein the liquid crystal display screen body comprises a lower glass (1), an FPC body (3), an upper glass (5), an upper polarizer (6) and a lower polarizer (7); A binding area (2) is provided at the center of the bottom of the front side of the lower glass (1), and one side of the FPC body (3) is connected to the binding area (2); A double-sided adhesive tape (303) is bonded to the back side of the FPC body (3) and the portion close to the right side. The back side of the FPC body (3) is connected to the back side of the lower glass (1) via the double-sided adhesive tape (303).

2. A liquid crystal display screen with enhanced connection reliability between FPC and LCD according to claim 1, characterized in that: A binding portion (301) is provided at the top right side of the FPC body (3), and a bending portion (302) is provided at the connection between the binding portion (301) and the FPC body (3).

3. A liquid crystal display screen with enhanced connection reliability between FPC and LCD according to claim 1, characterized in that: The bottom of the back side of the lower glass (1) is provided with an adhesive area for convenient attachment of double-sided adhesive tape (303).

4. A liquid crystal display screen with enhanced connection reliability between FPC and LCD according to claim 2, characterized in that: The binding portion (301) is bound and connected to the front of the binding area (2) and close to the bottom. The FPC body (3) is bent through the bending portion (302) to the bottom of the back of the lower glass (1) and is bonded and fixed in the adhesive area through the double-sided adhesive (303).

5. The liquid crystal display screen with enhanced connection reliability between FPC and LCD according to claim 1, characterized in that: The width of the double-sided adhesive (303) is the same as the width of the FPC body (3), and when the FPC body (3) is bonded to the back of the lower glass (1), the left end of the FPC body (3) extends out from the left bottom of the back of the lower glass (1).

6. A liquid crystal display screen with enhanced connection reliability between FPC and LCD according to claim 1, characterized in that: It also includes a driving IC (4), which is mounted on the binding area (2) and located on the top of the binding part (301), with a gap between the driving IC (4) and the binding part (301).

7. A liquid crystal display screen with enhanced connection reliability between FPC and LCD according to claim 1, characterized in that: The upper glass (5) is installed on the front side of the lower glass (1), the length of the upper glass (5) is shorter than the length of the lower glass (1), and a gap is left between the bottom of the upper glass (5) and the top of the binding area (2).

8. The liquid crystal display screen with enhanced connection reliability between FPC and LCD according to claim 1, characterized in that: The upper polarizer (6) is installed at a central position on the front side of the upper glass (5), and the lower polarizer (7) is installed at a position on the back side of the lower glass (1) corresponding to the upper glass (5).

9. The liquid crystal display screen with enhanced connection reliability between FPC and LCD according to claim 1, characterized in that: A release film is also bonded to the side of the double-sided adhesive tape (303) away from the FPC body (3), and the size of the release film is the same as that of the double-sided adhesive tape (303).

10. The liquid crystal display screen with enhanced connection reliability between FPC and LCD according to claim 1, characterized in that: A protective glue is also provided on the binding area (2), and the protective glue covers the driver IC (4) and the binding part (301).

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