CN219872010U

CN219872010U - Liquid crystal display device capable of avoiding overflow of hot melt adhesive

Info

Publication number: CN219872010U
Application number: CN202320426773.0U
Authority: CN
Inventors: 章小和; 樊劼; 刘雪白; 裴云飞; 梁肖婷
Original assignee: Xinli Photoelectric Renshou Co Ltd
Current assignee: Xinli Photoelectric Renshou Co Ltd
Priority date: 2023-03-08
Filing date: 2023-03-08
Publication date: 2023-10-20
Anticipated expiration: 2033-03-08

Abstract

The utility model discloses a liquid crystal display device for avoiding overflow of hot melt adhesive, which comprises a liquid crystal display module and a shell for fixing the liquid crystal display module, wherein the liquid crystal display module comprises a lower polaroid, a lower substrate, an upper polaroid, optical adhesive and a cover plate which are sequentially overlapped from bottom to top, the shell comprises a bearing part and a side wall which extends upwards from the edge of the bearing part, the bearing part is positioned below the cover plate, the side wall is arranged on one side of the cover plate, a blocking part is arranged at the edge of the lower surface of the cover plate, the hot melt adhesive is arranged on the upper surface of the bearing part positioned on the inner side of the blocking part, the cover plate and the shell are fixed through the hot melt adhesive, and the height of the blocking part is smaller than the thickness of the hot melt adhesive.

Description

Liquid crystal display device capable of avoiding overflow of hot melt adhesive

Technical Field

The utility model relates to the technical field of liquid crystal display, in particular to a liquid crystal display device capable of avoiding overflow of hot melt adhesive.

Background

The periphery of the cover plate 1 'of the liquid crystal display module is generally adhered and fixed with the casing 2' of the mobile phone through the hot melt adhesive 3', as shown in fig. 1, the hot melt adhesive 3' is firstly coated on the casing 2 'of the mobile phone, and then adhered and fixed with the periphery of the cover plate 1' of the liquid crystal display module. Because the hot melt adhesive 3' has stronger fluidity, the dispensing amount cannot ensure consistency.

As shown in FIG. 2, the hot melt adhesive 3 'after bonding inevitably overflows to the gap between the side edge of the cover plate 1' and the casing 2', and the adhesive overflows only in the local area, but not in other areas, and the user can observe the overflowed hot melt adhesive 3' through naked eyes, so that the product is lack of aesthetic feeling, the use experience of the user and the brand value of the product are seriously affected, reworking is needed to reprocess when the product is serious, the probability of defective products of the liquid crystal display device is further increased, and the production and manufacturing cost of the liquid crystal display device is 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 avoiding overflow of hot melt adhesive at the shell of the mobile phone, thereby improving the aesthetic feeling of the product and the use experience and brand value of the user.

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 liquid crystal display device for avoiding overflow of hot melt adhesive, which comprises a liquid crystal display module and a shell for fixing the liquid crystal display module, wherein the liquid crystal display module comprises a lower polaroid, a lower substrate, an upper polaroid, optical adhesive and a cover plate which are sequentially overlapped from bottom to top, the shell comprises a bearing part and a side wall which extends upwards from the edge of the bearing part, the bearing part is positioned below the cover plate, the side wall is arranged on one side of the cover plate, a blocking part is arranged at the edge of the lower surface of the cover plate, the hot melt adhesive is arranged on the upper surface of the bearing part which is positioned on the inner side of the blocking part, the cover plate and the shell are fixed through the hot melt adhesive, and the height of the blocking part is smaller than the thickness of the hot melt adhesive.

In an embodiment of the liquid crystal display device for avoiding overflow of hot melt adhesive provided by the utility model, the blocking part is a PET gasket or silica gel, an adhesive layer is disposed on the upper surface of the blocking part, and the blocking part is adhered to the lower surface of the cover plate.

As a preferred embodiment of the liquid crystal display device for avoiding overflow of the hot melt adhesive, the blocking part and the cover plate are integrally formed.

In an embodiment of the liquid crystal display device for avoiding overflow of hot melt adhesive provided by the utility model, a plurality of grooves are formed on the upper surface of the cover plate by etching, a plastic layer is covered on the cover plate, and the plastic layer is embedded into the plurality of grooves.

As a preferred embodiment of the liquid crystal display device for avoiding overflow of hot melt adhesive provided by the utility model, the shape of the groove is square or circular.

As a preferred embodiment of the liquid crystal display device for avoiding overflow of the hot melt adhesive, the grooves are long.

In a preferred embodiment of the liquid crystal display device for avoiding overflow of hot melt adhesive provided by the utility model, the lower substrate is longer than the upper substrate and extends outwards, a protrusion is arranged at the edge of the upper surface of the lower substrate which extends outwards, a buffer adhesive is arranged between the protrusion and the upper substrate on the upper surface of the lower substrate, and the buffer adhesive is abutted against the cover plate.

As a preferred embodiment of the liquid crystal display device for avoiding overflow of the hot melt adhesive provided by the utility model, the upper surface of the protrusion is flush with the upper surface of the upper substrate.

As an optimal implementation mode of the liquid crystal display device for avoiding overflow of the hot melt adhesive, the buffer adhesive is silicone adhesive.

As a preferred embodiment of the liquid crystal display device for avoiding overflow of the hot melt adhesive, a rounding angle is arranged between the protrusion and the lower substrate.

The utility model has the following beneficial effects:

the edge of the lower surface of the cover plate is provided with the blocking part, the blocking part can block the hot melt adhesive from flowing outwards so as to prevent the hot melt adhesive from overflowing outwards, and the blocking part is smaller than the thickness of the hot melt adhesive, so that the interference between the machine shell and the cover plate after assembly can be avoided. Therefore, the hot melt adhesive can not overflow to the clearance between the cover plate side edge and the cover plate after the cover plate is adhered to the cover plate, so that the situation of overflowing adhesive is avoided, the overflow of the hot melt adhesive can be observed by a user through naked eyes, the aesthetic feeling of the product is improved, the use experience of the user is improved, the brand value of the product is improved, reworking is avoided, the probability of defective products appearing in the liquid crystal display device is reduced, the production and manufacturing cost of the liquid crystal display device is also greatly reduced, and the product competitiveness of the liquid crystal display device is improved, so that the increasingly-growing quality requirements of enterprises are met.

Drawings

In order to more clearly illustrate the solution of the present utility model, a brief description will be given below of the drawings required for the description of the embodiments, it being obvious that the drawings in the following description are some embodiments of the present utility model, 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 diagram of a structure of a liquid crystal display device in the prior art.

Fig. 2 is a schematic diagram of a glue overflow situation of a liquid crystal display device in the prior art.

Fig. 3 is a schematic structural diagram of a liquid crystal display device for avoiding overflow of hot melt adhesive according to the present utility model.

Fig. 4 is a schematic structural diagram of the lcd module in fig. 3.

Fig. 5 is a bottom view of the cover plate.

Fig. 6 is a schematic structural diagram of another liquid crystal display device for avoiding overflow of hot melt adhesive according to the present utility model.

Fig. 7 is a schematic diagram of a structure of the lcd module in fig. 6.

Fig. 8 is a schematic structural diagram of embodiment 2.

Fig. 9 is an exploded view of fig. 8.

Fig. 10 is a schematic view of a modified structure of the cover plate in fig. 8.

Fig. 11 is a schematic structural diagram of embodiment 3.

Reference numerals illustrate:

a liquid crystal display module 100; a casing 200; a lower polarizer 1; a lower substrate 2; an upper substrate 3; a top polarizer 4; an optical cement 5; a cover plate 6; a blocking portion 7; a hot melt adhesive 8; a carrying portion 201; a sidewall 202;

an adhesive layer 71;

a groove 61; a plastic layer 9;

a protrusion 21; and a cushion gum 10.

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 liquid crystal display device for avoiding overflow of hot melt adhesive, which comprises a liquid crystal display module and a shell for fixing the liquid crystal display module, wherein the liquid crystal display module comprises a lower polaroid, a lower substrate, an upper polaroid, optical adhesive and a cover plate which are sequentially overlapped from bottom to top, the shell comprises a bearing part and a side wall which extends upwards from the edge of the bearing part, the bearing part is positioned below the cover plate, the side wall is arranged on one side of the cover plate, a blocking part is arranged at the edge of the lower surface of the cover plate, the hot melt adhesive is arranged on the upper surface of the bearing part positioned on the inner side of the blocking part, the cover plate and the shell are fixed through the hot melt adhesive, and the height of the blocking part is smaller than the thickness of the hot melt adhesive.

In order to make the person skilled in the art better understand the solution of the present utility model, the technical solution of the embodiment of the present utility model will be clearly and completely described below 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. 3 to 5, the liquid crystal display device for avoiding overflow of hot melt adhesive provided by the present utility model includes a liquid crystal display module 100 and a chassis 200, the chassis 200 is used for fixedly assembling the liquid crystal display module 100, the chassis 200 is disposed at an outer side of a lower portion of the liquid crystal display module 100, the liquid crystal display module 100 includes a lower polarizer 1, a lower substrate 2, an upper substrate 3, an upper polarizer 4, an optical adhesive 5 and a cover plate 6 sequentially stacked from bottom to top, the chassis 200 includes a supporting portion 201 and a sidewall 202, the sidewall 202 is formed by extending upward from an edge of the supporting portion 201, the supporting portion 201 is disposed below the cover plate 6, the sidewall 202 is disposed at one side of an outer edge of the cover plate 6, a blocking portion 7 is disposed at an edge of a lower surface of the cover plate 6, the hot melt adhesive 8 is disposed at an inner side of the blocking portion 7, the cover plate 6 and the chassis 200 are fixed by the hot melt adhesive 8, and a height of the blocking portion 7 is smaller than a thickness of the hot melt adhesive 8.

Because the edge of the lower surface of the cover plate 6 is provided with the blocking part 7, the blocking part 7 can block the hot melt adhesive 8 from flowing outwards so as to prevent the hot melt adhesive 8 from overflowing outwards, and because the height of the blocking part 7 is smaller than the thickness of the hot melt adhesive 8, the interference between the machine shell 200 and the cover plate 6 after assembly can be avoided. Therefore, after the case 200 is adhered to the cover plate 6, the hot melt adhesive 8 cannot overflow to the gap between the side edge of the cover plate 6 and the case 200, so that the overflow of the hot melt adhesive is avoided, the overflow of the hot melt adhesive 8 can be observed by a user through naked eyes, the aesthetic feeling of the product is improved, the use experience of the user and the brand value of the product are further improved, reworking is avoided, the probability of defective products of the liquid crystal display device is further reduced, the production and manufacturing cost of the liquid crystal display device is also greatly reduced, and the product competitiveness of the liquid crystal display device is improved, so that the ever-increasing quality requirements of enterprises are met.

Further, the blocking portion 7 is a PET gasket or silica gel, the adhesive layer 71 is disposed on the upper surface of the blocking portion 7, and the blocking portion 7 is adhered to the lower surface of the cover plate 6 through the adhesion of the adhesive layer 71.

Referring to fig. 6 and 7, further, the blocking portion 7 is integrally formed with the cover plate 6, and in this embodiment, the blocking portion 7 is formed by forming a bending portion structure at the peripheral edge of the cover plate 6 by hot pressing.

Example 2

Referring to fig. 8 and 9, as a further optimization scheme of embodiment 1, in this embodiment, a plurality of grooves 61 are formed on the upper surface of the cover plate 6 by etching, a plastic layer 9 is covered on the cover plate 6, and the plastic layer 9 is embedded into the plurality of grooves 61. Since the plastic layer 9 is covered on the cover plate 6, and the plurality of grooves 61 are formed on the upper surface of the cover plate 6 by etching, and the plastic layer 9 can be embedded into the plurality of grooves 61, the grooves 61 formed by etching have a certain roughness on the inner surface of the grooves 61, and the surface of the grooves 61 with a certain roughness can promote the adhesion between the grooves 61 and the plastic layer 9, thereby reducing the possibility of separating the grooves 61 from the plastic layer 9. When the liquid crystal display module 100 collides or falls, the plastic layer 9 on the upper surface of the cover plate 6 can directly bear the action of external force, so that the external force can be prevented from directly acting on the cover plate 6, and the rest external force is very weak when acting on the cover plate 6 because the plastic layer 9 can absorb most of energy, so that the risk of cracking or damaging the cover plate 6 can be effectively reduced; and when the liquid crystal display module 100 receives the external force, even if the external force is larger, the plastic layer 9 on the upper surface of the cover plate 6 can be damaged, and the cover plate 6 can not be directly damaged, so that the liquid crystal display module 100 can not be normally used due to the damage of the cover plate 6, better use experience is brought to a user, and the anti-falling capability of the liquid crystal display module 100 is improved.

Referring to fig. 10, further, the shape of the groove 61 may be square or circular, the cross-sectional shape of the groove 61 may be a narrow-outside-and-wide-inside-opening slot, in this embodiment, the cross-sectional shape of the groove 61 is isosceles trapezoid, and the groove 61 is long, the isosceles trapezoid-shaped groove 61 may enable the plastic layer 9 to be tightly embedded into the groove 61, so as to avoid separation of the groove 61 and the plastic layer 9, and thus prevent the cover plate 6 from falling off from the plastic layer 9, and the long groove 61 may increase the bonding portion between the plastic layer 9 and the groove 61, thereby improving the bonding strength between the groove 61 and the plastic layer 9.

Example 3

Referring to fig. 11, in this embodiment, as a further optimization scheme of embodiment 1, the lower substrate 2 is longer than the upper substrate 3 and extends outwards, a protrusion 21 is provided at an edge of an upper surface of the lower substrate 2 extending outwards, a buffer glue 10 is provided between the protrusion 21 and the upper substrate 3 on the upper surface of the lower substrate 2, and the buffer glue 10 abuts against the cover plate 6. Since the edge of the lower substrate 2 is provided with the protrusion 21, the protrusion 21 can limit the flow of the cushion gum 10, so that the shape of the cushion gum 10 is easy to control, and the phenomenon of glue overflow or insufficient dispensing can not occur. Thereby avoiding the liquid crystal display module 100 from being unable to be assembled with the chassis 200. And further, the problems of poor buffering effect and easy breakage of the lower substrate 2 caused by insufficient dispensing are avoided, and abnormal display of the liquid crystal display module 100 is prevented.

Further, the upper surface of the protrusion 21 is flush with the upper surface of the upper substrate 3 to further limit the flow of the cushion gum 10, so that the shape of the cushion gum 10 is easy to control, and no phenomenon of glue overflow or glue dispensing insufficiency occurs.

Further, the cushion gum 10 is a silicone gum.

Further, a rounded corner is arranged between the protrusion 21 and the lower substrate 2, so that the space between the protrusion 21 on the upper surface of the lower substrate 2 and the upper substrate 3 is filled with the cushion gum 10 more easily, and the protrusion 21 with the rounded corner can enable the cushion gum 10 to flow into the space between the protrusion 21 on the upper surface of the lower substrate 2 and the upper substrate 3 more smoothly, so that bubbles are not easy to occur.

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 above-described embodiments are only some embodiments of the present utility model, but not all embodiments, and the preferred embodiments of the present utility model are shown in the drawings, which do not limit the scope of the patent claims. This utility model may be embodied in many different forms, but rather, embodiments are provided in order to provide a thorough and complete understanding of the present disclosure. Although the utility model 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 description, or equivalents may be substituted for elements thereof. All equivalent structures made by the content of the specification and the drawings of the utility model are directly or indirectly applied to other related technical fields, and are also within the scope of the utility model.

Claims

1. The utility model provides a avoid liquid crystal display device that hot melt adhesive overflows, its characterized in that includes liquid crystal display module (100) and is used for fixing casing (200) of liquid crystal display module (100), liquid crystal display module (100) are including lower polaroid (1), lower base plate (2), last base plate (3), last polaroid (4), optical cement (5) and apron (6) that are overlapped the setting by last order in proper order down, casing (200) include carrier part (201) and by carrier part (201) edge upwards extends lateral wall (202), carrier part (201) are located the below of apron (6), lateral wall (202) set up in one side of apron (6), the edge of the lower surface of apron (6) is provided with barrier part (7), is located the upper surface of carrier part (201) of barrier part (7) inboard is provided with hot melt adhesive (8), apron (6) with casing (200) are passed through hot melt adhesive (8) are fixed, the thickness of barrier part (7) is less than hot melt adhesive (8).

2. The liquid crystal display device for avoiding overflow of hot melt adhesive according to claim 1, wherein the blocking portion (7) is a PET gasket or a silicone rubber, an adhesive layer (71) is provided on an upper surface of the blocking portion (7), and the blocking portion (7) is adhered to a lower surface of the cover plate (6).

3. The liquid crystal display device for avoiding overflow of hot melt adhesive according to claim 1, characterized in that the blocking portion (7) is integrally formed with the cover plate (6).

4. The liquid crystal display device for avoiding overflow of hot melt adhesive according to claim 1, wherein a plurality of grooves (61) are formed on the upper surface of the cover plate (6) by etching, a plastic layer (9) is covered on the cover plate (6), and the plastic layer (9) is embedded in a plurality of the grooves (61).

5. The liquid crystal display device for avoiding overflow of hot melt adhesive according to claim 4, wherein the shape of the groove (61) is square or circular.

6. The liquid crystal display device for avoiding overflow of hot melt adhesive according to claim 4, wherein the groove (61) is elongated.

7. The liquid crystal display device for avoiding overflow of hot melt adhesive according to claim 1, wherein the lower substrate (2) is longer than the upper substrate (3) and extends outwards, a protrusion (21) is provided at an edge of an upper surface of the lower substrate (2) extending outwards, a buffer adhesive (10) is provided between the protrusion (21) and the upper substrate (3) on the upper surface of the lower substrate (2), and the buffer adhesive (10) abuts against the cover plate (6).

8. The liquid crystal display device for avoiding overflow of the hot melt adhesive according to claim 7, wherein the upper surface of the protrusion (21) is flush with the upper surface of the upper substrate (3).

9. The liquid crystal display device for avoiding overflow of hot melt adhesive according to claim 7, wherein the buffer adhesive (10) is silicone adhesive.

10. The liquid crystal display device for avoiding overflow of hot melt adhesive according to claim 7, characterized in that a rounded corner is provided between the protrusion (21) and the lower substrate (2).