CN111479431B

CN111479431B - System frame sealing structure and display device comprising same

Info

Publication number: CN111479431B
Application number: CN202010293810.6A
Authority: CN
Inventors: 林士斌
Original assignee: AU Optronics Corp
Current assignee: AU Optronics Corp
Priority date: 2019-09-27
Filing date: 2020-04-15
Publication date: 2022-03-11
Anticipated expiration: 2040-04-15
Also published as: TW202113436A; CN111479431A; TWI709795B

Abstract

The invention discloses a system frame sealing structure and a display device comprising the same. The system frame sealing structure comprises a system frame body, a plurality of double-faced adhesive tapes, a first adhesive, a plurality of independent articles, a second adhesive and a covering piece. The system frame body comprises a bearing piece and an annular outer frame, the annular outer frame surrounds the bearing piece to form an accommodating space, and the annular outer frame is provided with a plurality of inner concave holes corresponding to a plurality of junctions spliced by a plurality of double-faced adhesive tapes. The plurality of independent articles comprise bottom surfaces and top surfaces, the bottom surfaces are fixed in the inner concave holes through first adhesive, and the second adhesive is arranged on the top surfaces. The viscosity of the second adhesive is greater than that of the first adhesive. The covering piece is arranged on the double-sided adhesive tapes and the second adhesive tapes to seal the accommodating space.

Description

System frame sealing structure and display device comprising same

Technical Field

The invention relates to a system frame sealing structure and a display device comprising the same, in particular to a system frame sealing structure for solving the problems of leakage of a whole system and difficulty in reworking and a display device comprising the same.

Background

The system frame can be used for protecting various electronic devices, an inner space is arranged through the frame body structure, and a closed space is formed after the frame body structure is covered by the upper cover, so that the electronic devices are prevented from contacting with the atmosphere or other polluted environments, and the electronic devices in the system frame are protected. However, when the upper cover is closed, the conventional system frame often cannot be tightly attached to the frame body, so that air or moisture permeates into the gaps of the adhered colloid, the internal electronic device is easily affected with damp or damaged, and the service life of the electronic device is shortened. The existing method can add viscose in the gap to make up the gap, but if the viscosity of the colloid is insufficient, all the gaps cannot be made up, but if the viscosity of the colloid is too high, the difficulty of disassembling and reworking the upper cover can be caused.

In summary, the conventional system frame sealing structure still has a defect in the function of preventing system leakage and the problem of difficulty in rework due to the viscosity of glue, so that the invention improves the defects of the prior art by designing the system frame sealing structure with an independent object, ensures that the system frame or a display device comprising the system frame can meet the requirements, and further improves the industrial application.

Disclosure of Invention

In view of the above-mentioned problems of the prior art, it is an object of the present invention to provide a system frame sealing structure and a display device including the same, which has a structure of independent objects and utilizes the difference of different adhesive viscosities, thereby solving the problems of sealing and difficult rework of the conventional system frame structure.

In accordance with the above purpose, an embodiment of the present invention provides a system frame sealing structure, which includes a system frame body, a plurality of double-sided tapes, a first adhesive, a plurality of independent articles, a second adhesive, and a covering part. The system frame body comprises a bearing piece and an annular outer frame, the annular outer frame is arranged on the bearing piece and surrounds the bearing piece to form an accommodating space, and the annular outer frame is provided with a plurality of inner concave holes. A plurality of double faced adhesive tapes are spliced and arranged on the annular outer frame, and a plurality of junctions spliced by the double faced adhesive tapes correspond to the positions of the plurality of concave holes. The first adhesive is arranged on the surfaces of the plurality of inner concave holes. The plurality of independent articles comprise bottom surfaces and top surfaces, and the bottom surfaces are fixed in the inner concave holes through first adhesive. The second viscose sets up on the top surface, and the viscidity of second viscose is greater than the viscidity of first viscose. The covering piece is arranged on the double-sided adhesive tapes and the second adhesive tapes to seal the accommodating space.

In accordance with the above objects, another embodiment of the present invention provides a display device including a system frame sealing structure, which includes a system frame body, a display panel, a plurality of double-sided tapes, a first adhesive, a plurality of independent articles, a second adhesive, and a cover. The system frame body comprises a bearing piece and an annular outer frame, the annular outer frame is arranged on the bearing piece and surrounds the bearing piece to form an accommodating space, and the annular outer frame is provided with a plurality of inner concave holes. The display panel is arranged on the bearing piece and is arranged in the accommodating space. A plurality of double faced adhesive tapes are spliced and arranged on the annular outer frame, and a plurality of junctions spliced by the double faced adhesive tapes correspond to the positions of the plurality of concave holes. The first adhesive is arranged on the surfaces of the plurality of inner concave holes. The plurality of independent articles comprise bottom surfaces and top surfaces, and the bottom surfaces are fixed in the inner concave holes through first adhesive. The second viscose sets up on the top surface, and the viscidity of second viscose is greater than the viscidity of first viscose. The covering piece is arranged on the double-sided adhesive tapes and the second adhesive tapes to seal the accommodating space.

In particular, the surface of the inner recess may have a smaller adhesion to the first glue than the bottom surface.

Specifically, the bottom surface of the free-standing article may include a plurality of microstructures thereon such that the bottom surface has a roughness greater than the surface of the inner recessed hole.

Specifically, the bonding area of the surface of the inner concave hole may be larger than the aperture area of the inner concave hole.

Specifically, the double-sided tapes and the second adhesive tape can form a closed loop.

As described above, according to the system frame sealing structure and the display including the same disclosed in the embodiments of the present invention, the covering member can be easily removed for rework by the arrangement of the independent object and the difference in the viscosity between the second adhesive and the first adhesive, so that the convenience of the rework process is improved. Meanwhile, by means of the design of the bonding area of the bottom surface of the independent object, the formed sealing structure has enough permeability resistance and corrosion resistance, and the reliability of the system device is improved.

Drawings

In order to make the technical features, contents and advantages of the present invention, and the effects achieved thereby, more obvious, the present invention will be described in detail with reference to the accompanying drawings, and in the following embodiments:

fig. 1A and 1B are schematic views of a system frame sealing structure according to an embodiment of the present invention.

Fig. 2 is a schematic diagram of a display device according to an embodiment of the invention.

Fig. 3A and 3B are schematic views of a separate object and an inner concave hole according to an embodiment of the invention.

Fig. 4A to 4E are schematic diagrams illustrating steps of assembling and reworking a system frame according to an embodiment of the present invention.

The reference numerals are explained below:

10: system frame body

11: bearing part

12: annular outer frame

13: containing space

14: covering part setting area

15: inner concave hole

15 a: first concave hole

15 b: second concave hole

16: support frame

17: shield member

20: double-sided adhesive tape

21: junction point

30: the first adhesive

40: independent article

40 a: first independent article

40 b: second independent article

41: bottom surface

42: the top surface

50: second adhesive

60: covering element

61: display area

70. 71: glue dispensing device

90: display panel

100. 102: system frame

101: display device

Detailed Description

In order to facilitate understanding of the technical features, contents, and advantages of the present invention and the effects achieved thereby, the present invention will be described in detail with reference to the accompanying drawings in the form of embodiments, wherein the drawings are provided for illustration and an auxiliary description, and are not necessarily to be construed as true in scale and precise arrangement after the implementation of the present invention, and therefore, the drawings should not be construed as limiting the scope of the present invention in the actual implementation with reference to the scale and arrangement of the accompanying drawings.

In the drawings, the thickness or width of layers, films, panels, regions, light guides, etc. is exaggerated for clarity. Like reference numerals refer to like elements throughout the specification. It will be understood that when an element such as a layer, film, region, or substrate is referred to as being "on" or "connected to" another element, it can be directly on or connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" or "directly connected to" another element, there are no intervening elements present. As used herein, "connected," may refer to physical and/or electrical connections. Further, "electrically connected" or "coupled" may mean that there are additional elements between the elements. Further, it will be understood that, although the terms "first", "second", "third" and/or the like may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should be used to distinguish one element, component, region, layer and/or section from another element, component, region, layer and/or section. Therefore, they are used for descriptive purposes only and not to be construed as indicating or implying relative importance or order relationships thereof.

Unless defined otherwise, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and the present invention and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

Please refer to fig. 1A and fig. 1B, which are schematic diagrams of a system frame sealing structure according to an embodiment of the present invention. Fig. 1A is a plan view of a sealing structure of the system frame 100, and fig. 1B is a schematic sectional view of the sealing structure of the system frame 100 taken along a dotted line a. As shown, the sealing structure of the system frame 100 includes a system frame body 10, a plurality of double-sided tapes 20, a first adhesive 30, a plurality of individual articles 40, a second adhesive 50, and a cover 60. The system frame body 10 includes a supporting member 11 and an annular outer frame 12, the supporting member 11 is a base of the system frame 10 and can be used for placing related electronic devices, such as an LCD display, an LED display, an electronic photo frame, and the like. The carrier 11 is provided with an annular outer frame 12, and the annular outer frame 12 and the carrier 11 may be formed integrally or may be assembled to form the system frame body 10 after being formed separately. The annular outer frame 12 surrounds the periphery of the supporting member 11 to form an accommodating space 13 on the supporting member 11, which can be used as a space for placing the electronic device, and then the accommodating space 13 is sealed by the covering member 60, so that the electronic device is isolated from the outside air and moisture in the closed system frame 100, and the electronic device is prevented from being damaged by contaminants, oil, water or the like. The cover member 60 can be placed on the cover member setting area 14 above the annular outer frame 12, and in addition, the double-sided tape 20 is adhered between the cover member 60 and the annular outer frame 12, so that the cover member 60 and the system frame 10 are fixed, and the accommodating space 13 of the system frame 10 is stably sealed. For example, on the cover setting area 14 with a ring shape, a plurality of double-sided tapes 20 are used to be attached to each side of the ring shape, and at the junction 21 where the plurality of double-sided tapes 20 are spliced, for example, each corner of the ring-shaped outer frame 12, the junction 21 has a gap.

In the present embodiment, a plurality of concave holes 15 are disposed in the annular outer frame 12, and the concave holes 15 correspond to the junctions 21 between the double-sided tapes 20, for example, disposed at four corners of the system frame body 10. In the embodiment, the inner concave hole 15 is a funnel-shaped hole with a narrow bottom and a wide top, but the disclosure is not limited thereto, and the inner concave hole 15 may also be a cylindrical hole with a uniform top and bottom width, or an irregular surface inside the hole, as long as the area of the inner surface of the hole of the inner concave hole 15 is larger than the aperture area of the opening of the hole. On the other hand, a plurality of independent objects 40 are provided, the independent objects 40 may be made of the same material as the system frame body 10, and the shapes thereof substantially correspond to the hole shapes of the inner concave holes 15, that is, the bottom surfaces 41 of the independent objects 40 substantially correspond to the shapes of the inner surfaces of the inner concave holes 15, and the top surfaces 42 of the independent objects 40 are, for example, horizontal surfaces or parallel to the surfaces of the double-sided adhesive tape 20, but not limited thereto. Firstly, coating the first adhesive 30 on the surfaces in the holes of the plurality of inner concave holes 15, and disposing the independent object 40 in each corresponding inner concave hole 15, so that the bottom surface 41 is partially fixed in the inner concave hole 15 through the first adhesive 30, then coating the second adhesive 50 on the top surface 42 of the independent object 40, covering the covering member 60 on the double-sided adhesive 20 and the second adhesive 50, bonding the covering member 60 and the annular frame 12 through the double-sided adhesive 20 and the second adhesive 50, and complementing the gaps at the junctions 21 of the plurality of double-sided adhesives 20 through the second adhesive 50, forming a closed loop by the plurality of double-sided adhesives 20 and the second adhesive 50, so that the covering member 60 completely seals the inner accommodating space 13 of the system frame 10.

In this embodiment, the first adhesive 30 and the second adhesive 50 are different adhesives, wherein the viscosity of the second adhesive 50 is greater than the viscosity of the first adhesive 30, and when the covering member 60 is assembled on the annular frame 12, the second adhesive 50 can fill the gaps at the junctions 21 between the two-sided adhesive 20 to form a closed loop, so that the covering member 60 is completely sealed and attached to the annular frame 12 to form a sealed inner space. When the system frame 10 needs to be reworked, the covering member 60 and the independent object 40 can be removed together due to the weak viscosity of the first adhesive 30, so that the rework of the system frame 10 or the internal electronic device can be performed, and the work efficiency of the rework process can be improved. In addition, after the first adhesive 30 on the bottom surface of the independent object 40 is removed, the original covering member 60 and the independent object 40 can be reused without replacing new elements, thereby effectively reducing the cost of the whole production and manufacturing.

In another embodiment, the independent object 40 may be made of a material different from that of the system frame 10, for example, a material having a surface with different adhesion to the first adhesive 30. Since the cover member 60 is removed together with the separate object 40 during the rework, if the separate object 40 is selected from a material different from that of the frame body such that the adhesion of the surface of the inner concave hole 15 to the first adhesive 30 is smaller than the adhesion of the bottom surface 41 of the separate object 40 to the first adhesive 30, it is helpful to remove the cover member 60 and the separate object 40. In yet another embodiment, the independent object 40 may be provided with a plurality of microstructures on the bottom surface 41 such that the roughness of the bottom surface 41 is greater than the roughness of the surface of the inner recessed hole 15. For example, the contact area between the bottom surface 41 and the first adhesive 30 is increased by forming a saw-tooth or wavy protrusion, which aims to increase the adhesion between the bottom surface 41 and the first adhesive 30, i.e., the adhesion between the surface of the inner recess 15 and the first adhesive 30 is smaller than the adhesion between the bottom surface 41 of the independent object 40 and the first adhesive 30, so that the independent object 40 can be easily detached from the inner recess 15, thereby facilitating the subsequent rework step.

Please refer to fig. 2, which is a schematic diagram of a display device according to an embodiment of the invention. As shown, the display device 101 includes a system frame 10, a display panel 90, a plurality of double-sided tapes 20, a first adhesive 30, a plurality of independent articles 40, a second adhesive 50, and a cover 60. The system frame 10 includes a supporting member 11 and an annular outer frame 12, wherein the annular outer frame 12 is disposed on the supporting member 11 and surrounds the supporting member 11 to form an accommodating space 12. The annular outer frame 12 is provided with a plurality of spliced double-faced adhesive tapes 20, the junction 21 spliced by the double-faced adhesive tapes 20 is provided with a plurality of corresponding inner concave holes 15 in the annular outer frame 12, the first adhesive 30 is arranged on the surface of the inner concave holes 15, and the bottom surface 41 of the independent object 40 corresponding to the shape of the inner concave hole 15 is fixed in the inner concave hole 15 through the first adhesive 30. The second adhesive 50 with the viscosity larger than that of the first adhesive 30 is disposed on the top surface of the independent object 40, and the covering member 60 is adhered to the annular outer frame 12 through the double-sided adhesive 20 and the second adhesive 50, so as to seal the accommodating space 13. The same elements as those of the previous embodiment are denoted by the same reference numerals, and detailed description is not repeated.

Unlike the previous embodiments, the display panel 90 is disposed in the accommodating space 13, and the display panel 90 may be a liquid crystal display panel, a light emitting diode display panel, or other types of display panels. The receiving space 13 may be provided with a bracket 16 for supporting the display panel 90, and the display panel 90 may be placed and fixed on the bracket 16, and the receiving space 13 may be further provided with a shielding member 17 for blocking light, which may correspond to the outer edge of the display area 61 of the cover member 60 and define a portion of the display device 101 to be displayed. After the display panel 90 of the display device 101 is disposed in the system frame structure, the display panel 90 is disposed in the enclosed accommodating space 13, and when the display device 101 is used, the display panel 90 will not contact with the outside air or moisture, thereby preventing the electronic components from being damaged by the moisture or contaminants and shortening the service life.

Referring to fig. 3A and 3B, fig. 3A and 3B are schematic diagrams of independent objects and inner concave holes according to an embodiment of the invention. Fig. 3A is a plan view of the sealing structure of the system frame 102, and fig. 3B is a schematic sectional view of the sealing structure of the system frame 102 taken along a dotted line B. As shown in the figure, the system frame body 10 of the system frame 102 may include a supporting member 11 and an annular outer frame 12, the annular outer frame 12 surrounds the supporting member 11 to form an accommodating space 13 on the supporting member 11, in this embodiment, a covering member is not drawn in the figure for illustrating the structure of the independent object and the inner concave hole, and related technical content may refer to the foregoing embodiments. In the present embodiment, the first concave hole 15a and the second concave hole 15b may be disposed at the intersection of the double-sided tapes 20, it should be noted that the structure of the single system frame 102 may include both the first concave hole 15a and the second concave hole 15b, or only one of them, and for convenience of description, different concave hole structures are drawn in the same ring-shaped outer frame 12 for illustration.

First, for the first inner concave hole 15a, a first independent object 40a corresponding to the shape of the first inner concave hole 15a, such as a square cone-shaped structure with a narrow bottom and a wide top, may be provided, and as shown in the figure, it may just correspond to the square funnel-shaped first inner concave hole 15 a. The bottom surface of the first independent article 40a is fixed to the first inner concave hole 15a by the first adhesive 30, and the top surface of the first independent article 40a is provided with the second adhesive 50 for sealing the junction of the double-sided adhesive 20. As described in the previous embodiment, the viscosity of the second adhesive 50 is greater than that of the first adhesive 30, and when assembled, the second adhesive 50 can fill up gaps at the junctions between the double-sided adhesives 20, so that the covering member and the annular frame 12 are completely sealed, although the viscosity of the first adhesive 30 is inferior to that of the second adhesive 50, since the bonding area between the first adhesive 30 and the bottom surface of the first independent object 40a is significantly greater than the aperture area of the original concave hole, the bonding strength is sufficient to support the covering member without causing the covering member to fall off. Furthermore, due to the enlarged bonding area, if external contaminants or moisture are to be eroded and infiltrated through the inner hole portion, the infiltration path is longer than the original distance, in other words, the infiltration difficulty is higher, i.e. the effect of protecting the internal device is better. For the advantages of this, if the shape of the second concave hole 15b is designed as an irregular convex structure, the corresponding second independent object 40b is also designed as a corresponding structure, and at this time, when the first adhesive 30 fixes the second independent object 40b, the adhesive area and the permeation path are increased, thereby further improving the adhesive strength and the protection strength. The above embodiments take the first and second inner

concave holes

15a and 15b and the corresponding first and second

independent objects

40a and 40b as examples to illustrate different structural examples, but the disclosure is not limited thereto, and the structure is suitable for the scope of the disclosure as long as the bonding area between the surface of the inner concave hole and the bottom surface of the independent object is larger than the aperture area of the original inner concave hole.

Referring to fig. 4A to 4E, fig. 4A to 4E are schematic diagrams illustrating steps of assembling and reworking a system frame according to an embodiment of the present invention. Referring to the structure of fig. 2, the same structural elements are denoted by the same reference numerals, and the description of the same elements is not repeated. First, fig. 4A shows a step of coating the first adhesive 30, when the display panel 90 is placed in the accommodating space of the system frame 10, the first adhesive 30 is coated on the surface of the inner concave hole 15 by the adhesive dispensing device 70. Next, fig. 4B is a step of assembling the independent object, in which the independent object 40 is disposed in the inner recess 15, and the first adhesive 30 is used to adhere the bottom surface 41 of the independent object 40 to the surface of the inner recess 15, so as to fix the independent object 40 in the inner recess 15. Next, fig. 4C is a step of coating the second adhesive 50, when the independent object 40 is assembled and fixed in the concave hole 15, the second adhesive 50 is coated on the top surface 42 of the independent object 40 by the glue dispensing device 71, and the covering element 60 is placed on the second adhesive 50 and the double-sided adhesive, and a closed loop is formed by the second adhesive 50 and the double-sided adhesives 20, so that the covering element 60 is completely sealed and attached to the annular frame 12, and the assembly completion result shown in fig. 4D is formed. The above steps are the assembly steps of the system frame or the display device including the display panel.

When the assembled system frame or display device is found to be abnormal or the bad part is detected, the rework step is required. First, as a result of the assembly of fig. 4D, pressure may be applied to remove the cover 60. Referring to the reworking detachment step of fig. 4E, since the viscosity of the second adhesive 50 is greater than that of the first adhesive 30, when the covering member 60 is applied with a force, the independent object 40 will adhere to the second adhesive 50 with a greater viscosity and be partially detached from the first adhesive 30. After the first adhesive 40 remaining on the bottom surface 41 of the separate object 40 is removed, the cover member 60 and the separate object 40 are left for reuse. Or further remove the separate piece 40 leaving only the cover 60 for reuse. Meanwhile, the adhesion force of the surface of the inner concave hole 15 to the first adhesive 30 is smaller than the adhesion force of the bottom surface 41 to the first adhesive 30, most of the first adhesive 30 is adhered to the bottom surface 41 of the independent object 40, which is beneficial to removing residual adhesive and also avoids the problem that excessive residual adhesive is remained in the inner concave hole 15 to increase the complexity of rework.

The foregoing is by way of example only, and not limiting. It is intended that all equivalent modifications or variations without departing from the spirit and scope of the present invention shall be included in the appended claims.

Claims

1. A system frame seal structure, comprising:

the system frame body comprises a bearing piece and an annular outer frame, wherein the annular outer frame is arranged on the bearing piece, surrounds the bearing piece to form an accommodating space, and is provided with a plurality of inner concave holes;

the double-sided adhesive tapes are spliced on the annular outer frame, and a plurality of junctions spliced by the double-sided adhesive tapes correspond to the positions of the concave holes;

the first viscose is arranged on one surface of the plurality of concave holes;

a plurality of independent articles, including a bottom surface and a top surface, wherein the bottom surface is fixed in the concave hole through the first adhesive;

the second adhesive is arranged on the top surface, and the viscosity of the second adhesive is greater than that of the first adhesive; and

and the covering piece is arranged on the double-sided adhesive tapes and the second adhesive tape and seals the accommodating space.

2. The system frame sealing structure of claim 1, wherein the surface of the inner recessed hole has less adhesion to the first adhesive than the bottom surface.

3. The system frame seal structure of claim 1, wherein the bottom surface of the independent object comprises a plurality of microstructures thereon, such that a roughness of the bottom surface is greater than the surface of the recessed hole.

4. The system frame seal structure of claim 1, wherein a bonding area of the surface of the recessed hole is larger than an aperture area of the recessed hole.

5. The system frame seal structure of claim 1, wherein the plurality of double-sided adhesive and the second adhesive form a closed loop.

6. A display device including a system frame sealing structure, comprising:

a display panel arranged on the bearing piece and arranged in the accommodating space;

the first viscose is arranged on one surface of the plurality of concave holes;

7. The display device including a system frame seal structure of claim 6, wherein the surface of the inner recess has a smaller adhesion to the first adhesive than the bottom surface.

8. The display device including a system frame sealing structure of claim 6, wherein the bottom surface of the separate object includes a plurality of microstructures thereon such that a roughness of the bottom surface is greater than the surface of the inner recess.

9. The display device including a system frame seal structure of claim 6, wherein a bonding area of the surface of the inner recess is larger than an aperture area of the inner recess.

10. The display device including a system frame sealing structure of claim 6, wherein the plurality of double-sided adhesive and the second adhesive form a closed loop.