CN219266733U

CN219266733U - Waterproof antistatic liquid crystal display device

Info

Publication number: CN219266733U
Application number: CN202320224633.5U
Authority: CN
Inventors: 李春平; 樊劼; 张树航; 黄昌盛
Original assignee: Xinli Photoelectric Renshou Co Ltd
Current assignee: Xinli Photoelectric Renshou Co Ltd
Priority date: 2023-02-10
Filing date: 2023-02-10
Publication date: 2023-06-27
Anticipated expiration: 2033-02-10

Abstract

The utility model discloses a waterproof antistatic liquid crystal display device, because the frame glue is arranged in a non-display area and is arranged in a shrinking manner relative to the outer edge of a lower substrate, namely, the frame glue is arranged far away from the outer edge of the lower substrate, a part of distance is reserved on the outer edge of the lower substrate, the antistatic glue is arranged around the frame glue and is filled to the outer edge of the lower substrate, namely, the part of distance is filled through the antistatic glue, the antistatic glue can separate the frame glue from the peripheral environment, so that water vapor is prevented from entering a liquid crystal box through the frame glue to cause electrochemical reaction of a TFT element, and further, the corrosion of related circuits of TFTs in the box is prevented, and the failure of the TFT element can be effectively prevented. And the antistatic glue can also effectively inhibit damage caused by static electricity under the condition of meeting the adhesive property, does not influence the adhesive force and viscosity, can effectively prevent static electricity from gathering, avoids static electricity from damaging the GIP wiring, and ensures the normal display of the liquid crystal display device.

Description

Waterproof antistatic liquid crystal display device

Technical Field

The utility model relates to the technical field of liquid crystal display, in particular to a waterproof and antistatic liquid crystal display device.

Background

The conventional liquid crystal display module comprises a lower substrate, a liquid crystal layer and an upper substrate which are sequentially overlapped from bottom to top, wherein frame glue is arranged on the liquid crystal layer, liquid crystal is limited in the frame glue through the frame glue, but along with the further development of a narrow-frame liquid crystal display device, the frame of the liquid crystal display device is narrower and narrower, so that GIP wires distributed in a non-display area of the liquid crystal display device are also closer and closer to the edge of the liquid crystal display device, static electricity is easy to scratch the GIP wires, and the liquid crystal display device cannot normally display.

The traditional frame glue has certain moisture permeability due to the characteristics of the materials, so that moisture gradually permeates into the liquid crystal display module along with the time, particularly in a high-temperature and high-humidity environment, thereby causing electrochemical reaction of a TFT element, corroding related circuits of the TFT, and further causing the failure of the TFT element.

Both conditions can lead to the failure of the liquid crystal display device to display normally, so that the probability of defective products of the liquid crystal display device is increased, and further the production and manufacturing costs of the liquid crystal display device are also greatly increased, thereby reducing the product competitiveness of the liquid crystal display device and failing to meet the increasing quality requirements of enterprises.

Disclosure of Invention

The utility model aims to solve the technical problem of improving the water-proof capability and the static-proof capability of a liquid crystal display device.

The technical problems to be solved by the utility model are realized by the following technical scheme:

in order to solve the technical problems, the utility model provides a waterproof antistatic liquid crystal display device, which comprises a liquid crystal display module applied to a narrow frame, wherein the liquid crystal display module comprises a lower substrate, a liquid crystal layer and an upper substrate which are sequentially overlapped from bottom to top, the upper substrate and the lower substrate are mutually staggered to form steps, the liquid crystal layer comprises liquid crystal, frame glue and antistatic glue which are arranged on the upper surface of the lower substrate, the frame glue is arranged in a non-display area and is arranged in a shrinking manner relative to the edge of the outer side of the lower substrate, the liquid crystal is arranged in the frame glue and is positioned in a display area, and the antistatic glue surrounds the frame glue and is filled to the edge of the outer side of the lower substrate.

As a preferred embodiment of the waterproof antistatic liquid crystal display device provided by the utility model, an IC and a flexible circuit board are bound on the upper surface of the lower substrate at the step, and the flexible circuit board comprises a substrate layer, a circuit layer arranged on the upper surface of the substrate layer and a metal heat dissipation layer arranged on the lower surface of the substrate layer.

As a preferred embodiment of the waterproof antistatic liquid crystal display device provided by the utility model, the flexible circuit board further comprises at least one perforation penetrating through the substrate layer, the circuit layer and the metal heat dissipation layer, and a heat conduction layer contacting with the circuit layer and the metal heat dissipation layer is arranged on the inner wall of the perforation.

As a preferred embodiment of the waterproof antistatic liquid crystal display device provided by the utility model, a heat conductor connected with an external heat conducting structure is arranged in the through hole, and the heat conductor is in contact with the heat conducting layer.

As a preferred embodiment of the waterproof antistatic liquid crystal display device provided by the utility model, the metal heat dissipation layer has a mesh structure, a strip structure, a wavy structure or a honeycomb structure.

As a preferred implementation mode of the waterproof antistatic liquid crystal display device provided by the utility model, the waterproof antistatic liquid crystal display device further comprises a rubber frame for bearing the liquid crystal display module, wherein the edge of the rubber frame extends upwards to form a side wall, at least two buckles are arranged on the side wall, and the buckles buckle the step.

As a preferred implementation mode of the waterproof antistatic liquid crystal display device provided by the utility model, a gasket is arranged between the liquid crystal display module and the rubber frame.

As a preferred embodiment of the waterproof antistatic liquid crystal display device provided by the utility model, the upper surface of the gasket is coated with weak-viscosity glue, and the lower surface of the gasket is coated with strong-viscosity glue.

As a preferred embodiment of the waterproof antistatic liquid crystal display device provided by the utility model, the weak-viscosity glue and the strong-viscosity glue have the same viscosity, the weak-viscosity glue is in a grid shape, and the strong-viscosity glue is in a complete coating shape.

As a preferred implementation mode of the waterproof antistatic liquid crystal display device provided by the utility model, the lower surface of the gasket is also provided with a PET layer, and the high-viscosity glue is arranged on the lower surface of the PET layer.

The utility model has the following beneficial effects:

because the frame glue is arranged in the non-display area and is arranged in a shrinking manner relative to the edge of the outer side of the lower substrate, namely the frame glue is arranged far away from the edge of the outer side of the lower substrate, a part of distance is reserved at the outer side edge of the lower substrate, and the antistatic glue surrounds the frame glue and fills the part of distance to the edge of the outer side of the lower substrate, namely the part of distance is filled with the antistatic glue, the frame glue and the peripheral environment can be separated by the antistatic glue, so that water vapor is prevented from entering a liquid crystal box through the frame glue to cause electrochemical reaction of a TFT element, and further, the corrosion of a TFT related circuit in the box is prevented, and the failure of the TFT related circuit can be effectively prevented. And the antistatic glue can also effectively inhibit damage caused by static electricity under the condition of meeting the adhesive property, does not influence the adhesive force and viscosity, can effectively prevent static electricity from gathering, avoids static electricity from damaging the GIP wiring, and ensures the normal display of the liquid crystal display device. Therefore, the probability of defective products of the liquid crystal display device is reduced, and the production and manufacturing costs of the liquid crystal display device are also greatly reduced, so that the product competitiveness of the liquid crystal display device is improved, and the increasing quality requirements of enterprises are met.

Drawings

For a clearer description of the solution in the present application, a brief description will be given below of the drawings that are needed in the description of the embodiments, it being obvious that the drawings in the following description are some embodiments of the present application, and that other drawings may be obtained from these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a waterproof and antistatic lcd device according to the present utility model.

Fig. 2 is a cross-sectional view at A-A in fig. 1.

Fig. 3 is a schematic structural diagram of a flexible circuit board in embodiment 2.

Fig. 4 is a schematic structural diagram of embodiment 3.

Fig. 5 is a schematic view of a modified structure of the gasket of fig. 4.

Fig. 6 is a schematic view of another modification of the gasket of fig. 4.

Reference numerals illustrate:

a lower substrate 1; a liquid crystal layer 2; an upper substrate 3; IC4; a flexible wiring board 5; a rubber frame 6; a spacer 7; a lower polarizer 8;

a liquid crystal 21; a frame glue 22; antistatic glue 23;

a base material layer 51; a circuit layer 52; a metal heat dissipation layer 53; a perforation 54;

a side wall 61; a clasp 62;

a weak tack glue 71; a strong adhesive glue 72; a PET layer 73.

Detailed Description

In order that those skilled in the art will better understand the present utility model, a technical solution in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", and "a third" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

The utility model provides a waterproof antistatic liquid crystal display device, which comprises a liquid crystal display module applied to a narrow frame, wherein the liquid crystal display module comprises a lower substrate, a liquid crystal layer and an upper substrate which are sequentially overlapped from bottom to top, the upper substrate and the lower substrate are mutually staggered to form steps, the liquid crystal layer comprises liquid crystal, frame glue and antistatic glue which are arranged on the upper surface of the lower substrate, the frame glue is arranged in a non-display area and is arranged in a retracted mode relative to the edge of the outer side of the lower substrate, the liquid crystal is arranged in the frame glue and is positioned in a display area, and the antistatic glue surrounds the frame glue and is filled to the edge of the outer side of the lower substrate.

In order to better understand the technical solutions of the present application, the following description will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings. The present utility model is described in detail below with reference to the drawings and the embodiments, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

Example 1

Referring to fig. 1 and 2, the waterproof antistatic liquid crystal display device provided by the utility model comprises a liquid crystal display module applied to a narrow frame, wherein the liquid crystal display module comprises a lower substrate 1, a liquid crystal layer 2 and an upper substrate 3 which are sequentially overlapped from bottom to top, the upper substrate 3 and the lower substrate 1 are mutually staggered to form a step, the liquid crystal layer 2 comprises a liquid crystal 21, a frame glue 22 and an antistatic glue 23 which are arranged on the upper surface of the lower substrate 1, the frame glue 22 is arranged in a non-display area and is arranged in a retracted manner relative to the outer edge of the lower substrate 1, namely, the frame glue 22 is far away from the outer edge of the lower substrate 1 by a certain distance, the liquid crystal 21 is arranged in the frame glue 22 and is positioned in the display area, and the antistatic glue 23 is arranged around the frame glue 22 and is filled to the outer edge of the lower substrate 1, namely, the antistatic glue 23 is filled with the retracted distance of the frame glue 22.

Further, the antistatic glue 23 may be a hot melt glue solidified at normal temperature, and a proper amount of antistatic agent is added into the hot melt glue to improve the conductivity of the hot melt glue and reduce the resistance of the hot melt glue.

Example 2

Referring to fig. 1 to 3, as a further optimization scheme of embodiment 1, in this embodiment, the IC4 and the flexible circuit board 5 are bound on the upper surface of the lower substrate 1 at the step, and the flexible circuit board 5 includes a substrate layer 51, a circuit layer 52 disposed on the upper surface of the substrate layer 51, and a metal heat dissipation layer 53 disposed on the lower surface of the substrate layer 51, where the arrangement manner may be that the circuit layer 52 and the metal heat dissipation layer 53 are respectively adhered to the substrate layer 51 through double-sided tape. Because the thickness of the substrate layer 51 is thinner, heat on the flexible circuit board 5 can be diffused to the metal heat dissipation layer 53 through the substrate layer 51, and the metal heat dissipation layer 53 can effectively increase the heat dissipation area of the flexible circuit board 5, and plays a role in uniform heat dissipation, so that the heat dissipation efficiency of the flexible circuit board 5 is improved. The substrate layer 51 may be any one of polyimide, polyester, polysulfone or polytetrafluoroethylene, the double sided tape may be any one of an acrylic adhesive layer or an epoxy adhesive layer, and the metal heat dissipation layer 53 may be a copper foil layer.

Further, the flexible circuit board 5 further includes at least one through hole 54 penetrating through the base material layer 51, the circuit layer 52 and the metal heat dissipation layer 53, the inner wall of the through hole 54 is provided with a heat conduction layer contacting with the circuit layer 52 and the metal heat dissipation layer 53, and the circuit layer 52 and the metal heat dissipation layer 53 at two sides of the base material layer 51 can be electrically connected with good heat conduction performance by using good heat conduction performance at the through hole 54, so that good heat conduction performance can be exerted, and the heat conduction layer can provide heat conduction function so as to achieve good heat dissipation effect. The heat conducting layer can be a copper adhesive conductive ink layer.

Further, a heat conductor connected to the external heat conducting structure is disposed in the through hole 54, and the heat conductor is connected to the external heat conducting structure from one side of the circuit layer 52 and is also in contact with the heat conducting layer in the through hole 54, so that the circuit layer 52 and the metal heat dissipation layer 53 can be connected to the external heat conducting structure through the through hole 54, and heat in the flexible circuit board 5 is diffused to the external heat conducting structure through the heat conductor in the through hole 54, so as to further improve the heat dissipation efficiency of the flexible circuit board 5. Preferably, in order to allow the perforation 54 to be connected with an external heat conductive structure, the perforation 54 is provided at an edge position of the flexible circuit board 5.

Further, the metal heat dissipation layer 53 has a uniform heat dissipation structure, and the structure may be any one of a mesh structure, a strip structure, a wave structure, and a honeycomb structure, and the heat dissipation effect can be better improved by the uniform heat dissipation structure.

Example 3

Referring to fig. 1 and fig. 4, as a further optimization scheme of embodiment 1, the embodiment further includes a glue frame 6 for carrying the liquid crystal display module, a side wall 61 extends upward from an edge of the glue frame 6, at least two buckles 62 are provided on the side wall 61, and the buckles 62 buckle the steps to prevent the liquid crystal display module from being separated. In this embodiment, four buckles 62 symmetrical in pairs are used, but not limited thereto, and in other embodiments, only two buckles 62 may be used, but the stability is inferior to that of the four buckles 62 in this embodiment. The step where the upper substrate 3 is above the lower substrate 1 and the buckle 62 is fastened is a position where the upper surface of the lower substrate 1 is staggered from the upper substrate 3. The lower substrate 1 includes a circuit area and a non-circuit area, and the snap 62 of the present embodiment is preferably snapped on the non-circuit area to prevent the circuit of the lower substrate 1 from being affected. The liquid crystal 21 liquid crystal display module provided by the utility model has the advantages of simple structure, mature process and low cost, can be firmly fixed on the rubber frame 6, can be assembled by pressing the liquid crystal display module, is time-saving and labor-saving, has high assembly efficiency, and can effectively improve production efficiency.

Further, a gasket 7 is arranged between the liquid crystal display module and the rubber frame 6. The gasket 7 is preferably foam or sponge rubber, which not only has a dustproof effect, but also can ensure a buffering effect in the assembly process of the liquid crystal display module. In other embodiments, the sponge rubber can not only play the role, but also firmly adhere the liquid crystal display module to further prevent the liquid crystal display module from being separated. More preferably, the thickness delta of the gasket 7 is more than or equal to 0.3mm, so that the gasket 7 has enough thickness to elastically deform while the liquid crystal display module plays a role in buffering, the elastic force generated by the elastic deformation can apply a certain pressure to the liquid crystal display module to ensure that the liquid crystal display module can be clamped more firmly by the buckle 62, the gasket 7 has small elastic force when the thickness delta is too small, and cannot generate enough pressure to the liquid crystal display module, so that the gasket is easy to fall off.

Referring to fig. 5, further, the upper surface of the spacer 7 is coated with a weak adhesive glue 71, and the lower surface of the spacer 7 is coated with a strong adhesive glue 72. The lower surface of the lower substrate 1 is provided with a lower polaroid 8, the lower surface of the lower polaroid is attached to the upper surface of the gasket 7, the upper surface of the rubber frame 6 is attached to the lower surface of the gasket 7, the gasket 7 not only can play a role in buffering and dust prevention, but also can prevent the upper surface of the gasket 7 from pulling the lower polaroid 8 in the liquid crystal display module to avoid MURA due to the fact that the upper surface of the gasket 7 is coated with weak-viscosity glue 71, and further prevent the lower polaroid 8 from deforming; meanwhile, the number of layers of the gasket 7 is small, and the gasket 7 can be prevented from falling off, so that the liquid crystal display module is prevented from falling off.

Further, the glue viscosities of the weak adhesive glue 71 and the strong adhesive glue 72 are the same, the glue coating shape of the weak adhesive glue 71 is a grid shape, and the glue coating shape of the strong adhesive glue 72 is a complete coating. Because the glue viscosity of the weak-viscosity glue 71 is the same as that of the strong-viscosity glue 72, only one glue can be purchased, so that the purchasing quantity of the glue is increased, the purchasing cost is reduced, meanwhile, the glue cannot be mixed in the gluing process, the production efficiency is improved, the problem of wrong glue use is avoided, the coating shape of the weak-viscosity glue 71 is in a grid shape, the glue area of the weak-viscosity glue 71 is reduced, and the viscosity of the weak-viscosity glue 71 is reduced.

Referring to fig. 6, further, a PET layer 73 is further disposed on the lower surface of the spacer 7, and the strong adhesive glue 72 is disposed on the lower surface of the PET layer 73, so that the PET layer 73 is used as a recognition to play a foolproof role.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

It is apparent that the embodiments described above are only some embodiments of the present application, but not all embodiments, the preferred embodiments of the present application are given in the drawings, but not limiting the patent scope of the present application. This application may be embodied in many different forms, but rather, embodiments are provided in order to provide a more thorough understanding of the present disclosure. Although the present application has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing, or equivalents may be substituted for elements thereof. All equivalent structures made by the specification and the drawings of the application are directly or indirectly applied to other related technical fields, and are also within the protection scope of the application.

Claims

1. The utility model provides a waterproof antistatic liquid crystal display device, its characterized in that, it includes the liquid crystal display module that is applied to narrow frame, the liquid crystal display module includes lower base plate (1), liquid crystal layer (2) and upper base plate (3) that are overlapped in proper order by down to last, upper base plate (3) with lower base plate (1) stagger each other and place and be formed with the step, liquid crystal layer (2) including set up in liquid crystal (21), frame glue (22) and antistatic glue (23) of lower base plate (1) upper surface, frame glue (22) set up in non-display area and for the edge of the outside of lower base plate (1) contracts the setting, liquid crystal (21) set up in frame glue (22) and be located the display area, antistatic glue (23) encircle frame glue (22) set up and fill to the edge of the outside of lower base plate (1).

2. The waterproof and antistatic liquid crystal display device according to claim 1, wherein an IC (4) and a flexible wiring board (5) are bonded to the upper surface of the lower substrate (1) at a step, and the flexible wiring board (5) includes a base material layer (51), a circuit layer (52) provided on the upper surface of the base material layer (51), and a metal heat dissipation layer (53) provided on the lower surface of the base material layer (51).

3. The waterproof and antistatic liquid crystal display device according to claim 2, wherein the flexible circuit board (5) further comprises at least one perforation (54) penetrating the substrate layer (51), the circuit layer (52) and the metal heat dissipation layer (53), and the inner wall of the perforation (54) is provided with a heat conduction layer contacting the circuit layer (52) and the metal heat dissipation layer (53).

4. A waterproof and antistatic liquid crystal display device according to claim 3, characterized in that a heat conductor connected to an external heat conducting structure is arranged in the perforation (54), said heat conductor being in contact with the heat conducting layer.

5. The waterproof and antistatic liquid crystal display device according to claim 2, wherein the structure of the metal heat dissipation layer (53) is a mesh structure, a stripe structure, a wave structure or a honeycomb structure.

6. The waterproof and antistatic liquid crystal display device according to claim 1, further comprising a rubber frame (6) for carrying the liquid crystal display module, wherein a side wall (61) extends upwards from the edge of the rubber frame (6), at least two buckles (62) are arranged on the side wall (61), and the buckles (62) buckle the step.

7. The waterproof and antistatic liquid crystal display device according to claim 6, wherein a gasket (7) is arranged between the liquid crystal display module and the rubber frame (6).

8. The waterproof antistatic liquid crystal display device according to claim 7, wherein the upper surface of the gasket (7) is coated with a weak adhesive glue (71), and the lower surface of the gasket (7) is coated with a strong adhesive glue (72).

9. The waterproof and antistatic liquid crystal display device according to claim 8, wherein the weak adhesive glue (71) and the Jiang Nianxing glue (72) have the same glue viscosity, the weak adhesive glue (71) has a mesh-like glue coating shape, and the Jiang Nianxing glue (72) has a full-coated glue coating shape.

10. The waterproof and antistatic liquid crystal display device according to claim 7, wherein the lower surface of the gasket (7) is further provided with a PET layer (73), and the strong adhesive glue (72) is arranged on the lower surface of the PET layer (73).