Anti-shielding VA broken code screen

Abstract

The utility model provides an anti-shielding VA broken code screen which comprises upper glass, lower glass, an upper polaroid, a lower polaroid, an IC device and an FPC board, the upper glass is attached to the lower glass, the upper polaroid is attached to the upper surface of the upper glass, the lower polaroid is attached to the side, away from the upper glass, of the lower glass, the IC device and the FPC board are bound to the lower surface of the upper glass, and the FPC board is bound to the lower surface of the lower glass. The upper surface of the upper glass is communicated with the FPC board or the lower surface of the upper glass in a mode that the grounding lug is folded back to the upper surface of the upper glass through the FPC board design, or the grounding lug is adhered to the upper surface of the upper glass and the FPC board provided with the grounding area and the grounding window through conductive adhesive paper and a PIN is inserted, so that a shielding effect is achieved, and interference is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of a broken code screen, in particular to the technical field of an anti-shielding VA broken code screen. Background Art

[0002] As a widely used display device, the broken code screen is particularly susceptible to abnormal display caused by static electricity accumulation or interference from external signals during actual use. Conventional VA broken code screens usually have a large upper glass and a small lower glass. After the IC is bound, it is exposed upwards without corresponding shielding protection treatment. It is easily affected by interference signals, thus affecting the use of the product. Currently, the upper ITO glass is made into a double-sided ITO mold on the market, and the upper surface of the upper ITO glass is plated with an ITO conductive film for shielding. However, the discharge path design of the entire conductive film is directly grounded, which not only cannot provide good shielding, but may also cause EMC test NG, affecting product quality. Utility Model Content

[0003] The purpose of the utility model is to overcome the deficiencies in the prior art, provide an anti-shielding VA code-breaking screen, and improve shielding reliability.

[0004] The purpose of this utility model is achieved through the following technical solutions:

[0005] A shielding-resistant VA broken code screen comprises upper glass, lower glass, upper polarizer, lower polarizer, IC device and FPC board, characterized in that: the upper glass comprises an upper glass upper surface and an upper glass lower surface, the upper glass is bonded to the lower glass, the upper polarizer is bonded to the upper glass upper surface, the lower polarizer is bonded to a side of the lower glass away from the upper glass, the IC device and the FPC board are bound to the lower surface of the upper glass, the upper surface of the upper glass is connected to the FPC board or the lower surface of the upper glass, and is used for shielding interference.

[0006] In one embodiment, the upper glass is double-sided conductive ITO glass, and the lower surface of the upper glass is a functional layer.

[0007] In one embodiment, the upper glass is larger than the lower glass, and liquid crystal is poured into the upper and lower glasses after they are attached to each other.

[0008] In one implementation, the IC device and the FPC board are fixed by glue.

[0009] In one embodiment, the FPC board is provided with a grounding lug, and the grounding lug is folded back and adhered to the ITO on the upper surface of the upper glass to be connected to the ground.

[0010] In one embodiment, the grounding lug is made of a bending-resistant conductive metal and has good bending resistance, thereby ensuring that the FPC grounding lug is not easily damaged during use.

[0011] In one embodiment, the FPC board is connected to the upper surface of the upper glass by conductive tape, and the FPC board is provided with a grounding area, in which a grounding window is opened, so that the ITO on the upper surface of the upper glass is connected to the ground wire to play a shielding role.

[0012] In one embodiment, the upper surface of the upper glass and the lower surface of the upper glass are provided with PIN slots corresponding to each other in spatial positions.

[0013] In one implementation, the PIN card port is connected using a U-shaped PIN pin.

[0014] In one embodiment, the U-shaped PIN needle includes an opening portion and a bottom, the opening portion is bent and expanded outward, and the two sides of the opening portion correspond to the PIN card slot insertion PIN on the upper surface of the upper glass and the lower surface of the upper glass respectively, the bottom is in contact with the upper glass, and a pin is extended from one side of the bottom to facilitate external grounding.

[0015] In one embodiment, the opening and the bottom are glued and cured at the contacting parts with the upper glass.

[0016] The beneficial effects of the utility model are:

[0017] 1. By connecting the upper surface of the upper glass with the FPC board or the lower surface of the upper glass, the ITO on the surface can be well connected and grounded, which plays a shielding role and reduces interference.

[0018] 2. The connection method between the upper surface of the upper glass and the FPC board or the lower surface of the upper glass includes folding the grounding ear designed on the FPC board back to the upper surface of the upper glass for grounding; using conductive tape to stick it to the upper surface of the upper glass and the FPC board with the grounding area and grounding window to connect the surface ITO and the ground wire; using the PIN insertion method to connect the upper surface ITO and the grounding ITO on the lower surface. In this way, the above methods can be used independently or in combination according to the shielding requirements of the broken code screen, so as to achieve good interference shielding and improve the reliability and yield rate of the broken code screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a schematic diagram of the structure of the VA broken code screen with anti-shielding;

[0021] Figure 2 Schematic diagram of a single FPC board with grounding ears.

[0022] Figure 3 Schematic diagram of connecting the upper surface of the glass to the FPC board with conductive tape

[0023] Figure 4 Diagram of inserting PIN on the upper and lower surfaces of the upper glass

[0024] Figure 5 Schematic diagram of the upper glass PIN card slot

[0025] Figure 6 Schematic diagram of U-shaped PIN needle DETAILED DESCRIPTION

[0026] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively with reference to the relevant drawings. The drawings provide preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly and comprehensively understood.

[0027] It should be noted that when an element is referred to as being "bound to" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time. The terms "upper surface", "lower surface", "upper", "lower", and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0029] See also Figure 1The utility model provides an anti-shielding VA broken code screen, including an upper glass 100, a lower glass 200, an upper polarizer 101, a lower polarizer 201, an IC device 300 and an FPC board 400. The upper glass includes an upper glass upper surface 102 and an upper glass lower surface 103. The upper glass 100 is bonded to the lower glass 200, the upper polarizer 101 is bonded to the upper glass upper surface 102, the lower polarizer 201 is bonded to the side of the lower glass 200 away from the upper glass 100, the IC device 300 and the FPC board 400 are bound to the upper glass lower surface 103, and the upper glass upper surface 102 is connected to the FPC board 400 or the upper glass lower surface 103 for shielding interference.

[0030] Based on the above embodiment, the upper glass 100 is a double-sided conductive ITO glass, the lower surface 103 of the upper glass is a functional layer, the upper glass 100 is larger than the lower glass 200, the two are bonded together and filled with liquid crystal, and the IC device 300 and the FPC board 400 are fixed by glue.

[0031] In this way, the working principle of the above embodiment is to design the circuit of the VA broken code screen on the lower surface 103 of the upper glass to form a functional layer, make the lower glass 200 smaller, and after the upper and lower glasses 100 and 200 are bonded into a liquid crystal box, the upper polarizer 101 and the lower polarizer 201 are bonded, and then the IC device 300 and the FPC board 400 are glued and bound to the lower surface 103 of the upper glass, and then the upper surface 102 of the upper glass and the FPC board 400 or the lower surface 103 of the upper glass are connected to make the ITO on the surface grounded to play a shielding role.

[0032] See also Figure 1 , Figure 2 In one embodiment, the FPC board 400 is provided with a grounding ear 401 for folding back and adhering to the upper surface 102 of the upper glass for grounding.

[0033] In one embodiment, the grounding ear 401 is made of a bending-resistant conductive metal and has good bending resistance, ensuring that the FPC grounding ear 401 is not easily damaged during the process of being folded back and attached to the upper surface 102 of the upper glass, thereby improving the reliability and yield of the grounding of the broken code screen.

[0034] See also Figure 3 , Figure 4 In one embodiment, the FPC board 400 is connected to the upper surface 102 of the upper glass by a conductive adhesive tape 402, and the FPC board 400 is provided with a grounding area 403, and at least one grounding window 404 is opened in the grounding area, so that the ITO on the upper glass surface is connected to the ground wire to play a shielding role.

[0035] It should be noted that this embodiment adopts the conductive tape conduction method, which simplifies the conduction, is convenient to operate, has high efficiency, strong applicability, and also reduces the silver paste application process.

[0036] See also Figure 4 , Figure 5 , Figure 6 In one embodiment, the upper glass upper surface 102 and the upper glass lower surface 103 are provided with PIN slots 104, and the spatial positions of the two groups of PIN slots 104 correspond to each other. In one embodiment, the width of the PIN slots 104 is 1.1-1.4 mm, and the spacing between adjacent PIN slots 104 in the same group is 1.8-2.2 mm.

[0037] It should be noted that, in one embodiment, the PIN bayonet 104 is connected by a U-shaped PIN needle 500, and the U-shaped PIN needle 500 includes an opening 501 and a bottom 502, and the opening 501 is bent and expanded outward, and the distance of the opening 501 after bending and expanding outward is 1.4 to 1.8 mm, the vertical distance between the opening 501 and the bottom 502 is 1.8 to 2.1 mm, and the vertical distance between the opening 501 and the bottom 502 is 1.2 to 1.6 mm. A pin 503 is also extended from one side of the bottom 502, and the extension direction of the pin 503 forms an angle of 87° to 93° with the center line of the bottom.

[0038] In this way, the two sides of the opening 501 of the U-shaped PIN needle 500 correspond to the PIN slots 104 of the upper surface 102 and the lower surface 103 of the upper glass, respectively, and the bottom 502 of the U-shaped PIN needle 500 contacts the upper glass 100, so as to realize the connection between the upper surface 102 and the lower surface 103 of the upper glass. A pin 503 is also extended on one side of the bottom 502 of the U-shaped PIN needle 500 for external grounding. The opening 501 of the U-shaped PIN needle 500 and the bottom 502 of the U-shaped PIN needle 500 contacting the upper glass 100 are glued and cured, which effectively improves the connection strength of the U-shaped PIN needle 500, avoids the problem of poor contact between the U-shaped PIN needle 500 and the connection part, and greatly improves the grounding shielding reliability of the broken code screen.

[0039] To sum up, compared with the prior art, the utility model binds the IC device and FPC board of the VA broken code screen to the lower surface of the upper glass, and adopts the method of connecting the upper surface of the upper glass and the FPC board or the lower surface of the upper glass to realize the ITO conduction and grounding of the surface, which can achieve good interference shielding and improve the reliability and yield of the broken code screen.

[0040] The above-mentioned embodiments only express several implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several variations, combinations and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. An anti-shielding VA broken code screen, comprising upper glass, lower glass, upper polarizer, lower polarizer, IC device and FPC board, characterized in that: The upper glass includes an upper glass upper surface and an upper glass lower surface, the upper glass is bonded to the lower glass, the upper polarizer is bonded to the upper glass upper surface, the lower polarizer is bonded to a side of the lower glass away from the upper glass, the IC device and the FPC board are bound to the lower surface of the upper glass, and the upper glass upper surface is connected to the FPC board or the lower surface of the upper glass.

2. The anti-shielding VA broken code screen according to claim 1 is characterized in that: The upper glass is double-sided conductive ITO glass.

3. The anti-shielding VA broken code screen according to claim 2 is characterized in that: The upper glass is larger than the lower glass.

4. The anti-shielding VA broken code screen according to claim 3 is characterized in that: The IC device and the FPC board are fixed by glue.

5. The anti-shielding VA broken code screen according to claim 4 is characterized in that: The FPC board is provided with a grounding ear, and the grounding ear is folded back and attached to the upper surface of the upper glass to be conductively connected and grounded.

6. The anti-shielding VA broken code screen according to claim 5 is characterized in that: The grounding lug is made of conductive metal that is resistant to bending.

7. The anti-shielding VA broken code screen according to claim 4 is characterized in that: The FPC board is connected to the upper surface of the upper glass by using conductive adhesive tape.

8. The anti-shielding VA broken code screen according to claim 7 is characterized in that: The FPC board is provided with a grounding area, and a grounding window is provided in the grounding area.

9. The anti-shielding VA broken code screen according to claim 4 or 8, characterized in that: The upper surface of the upper glass and the lower surface of the upper glass are provided with PIN slots corresponding to the spatial positions respectively.

10. The anti-shielding VA broken code screen according to claim 9, characterized in that: The PIN card port is connected by a U-shaped PIN needle.

11. The anti-shielding VA broken code screen according to claim 10, characterized in that: The U-shaped PIN needle includes an opening and a bottom. The opening is bent and expanded outward. The two sides of the opening correspond to the PIN card slots on the upper surface of the upper glass and the lower surface of the upper glass for inserting the PIN. The bottom contacts the upper glass, and a pin extends from one side of the bottom.

12. The anti-shielding VA broken code screen according to claim 11, characterized in that: The opening and the bottom are glued and cured at contact points with the upper glass.

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