TW201531547A - Display device and tape structure - Google Patents

Abstract

A display device including a display module, a plate and a tape structure is provided. The plate is disposed on the display module. The tape structure is disposed between the display module and the plate. The tape structure includes a main body, at least one through hole and a first adhesive layer. The main body has a first surface and a second surface opposite to the first surface. The through hole is disposed in the main body. The through hole has a side wall located between the first surface and the second surface. The first adhesive layer is disposed on the first surface of the main body, covers the through hole, and contacts portion of the side wall of the through hole.

Description

Display device and tape structure thereof

The present invention relates to a tape structure, and more particularly to a tape structure for use in a display device.

Due to the vigorous development of high-tech electronic information industry, consumer electronic products have become a necessity in people's daily life, and liquid crystal display devices have gradually become the mainstream of display products on the market due to their advantages of thin size, small footprint, and low radiation. .

Different types of plates are usually attached to the display device for different functions, such as a cover lens made of tempered glass or acrylic. For example, a touch panel or a 3D panel. Whether it is a protective glass, a touch panel or a 3D panel, it needs to be glued to the display module, and the position of the glue is usually placed on the outer frame of the display module. Since the display module is required to be thinner, the outer frame of the display module is replaced by a light-shielding tape having a light-shielding effect. When the above-mentioned plate is adhered to the display module through the adhesive, the interface between the adhesive and the light-shielding tape is insufficient due to the material properties of the light-shielding tape, so that the plate may be subjected to special impacts such as external impact. Shows the risk of the module falling off or peeling off.

One of the objects of the present invention is to provide a tape structure whose structural design is effective to improve the area of adhesion and adhesion.

It is still another object of the present invention to provide a display device whose structural design effectively increases the attachment area and adhesion between the sheet and the display module.

To achieve the above advantages, the tape structure provided by the present invention comprises a body, at least one perforation and a first adhesive layer. The body has opposing first and second surfaces. The perforation is disposed on the body, and the through hole has a sidewall between the first surface and the second surface. The first adhesive layer is disposed on the first surface of the body and covers at least one of the through holes and contacts at least a portion of the sidewalls of the through holes.

In an embodiment of the invention, the tape structure further includes a second adhesive layer disposed on the second surface of the body and contacting at least a portion of the perforated sidewalls.

In an embodiment of the invention, the first adhesive layer and the second adhesive layer are in contact with each other through the perforations.

In an embodiment of the invention, the body comprises a substrate, an ink layer, and a third adhesive layer. The ink layer is disposed on the substrate, and the first surface is located on a side of the ink layer away from the substrate. The third adhesive layer is disposed under the substrate, and the second surface is located on a side of the third adhesive layer away from the substrate.

In an embodiment of the invention, the first surface has a first coverage covered by the first adhesive layer. The first coverage area has a coverage area, and the perforation has an opening area on the first surface, and the ratio of the sum of the opening areas of the perforations in the first coverage area to the coverage area is greater than or equal to 5%.

In an embodiment of the invention, the first surface has a coverage covered by the first adhesive layer, the coverage area has a coverage area, and the perforation The first surface has an open area, and the ratio of the sum of the open areas of the perforations in the coverage area to the coverage area is less than or equal to 80%.

In order to achieve the above advantages, another aspect of the present invention provides a display device including a display module, a sheet material, and a tape structure. The sheet is placed on the display module. The tape structure is sandwiched between the display module and the plate, and the tape structure comprises a body, at least one through hole and a first adhesive layer. The body has opposite first and second surfaces. The perforation is disposed on the body, and the through hole has a sidewall between the first surface and the second surface. The first adhesive layer is disposed on the first surface of the body and covers at least one of the through holes and contacts at least a portion of the sidewalls of the through holes.

In an embodiment of the invention, the tape structure further includes a second adhesive layer disposed on the second surface of the body and contacting at least a portion of the perforated sidewalls.

In an embodiment of the invention, the first adhesive layer and the second adhesive layer are in contact with each other through the perforations.

In an embodiment of the invention, the body comprises a substrate, an ink layer, and a third adhesive layer. The ink layer is disposed on the substrate, and the first surface is located on a side of the ink layer away from the substrate. The third adhesive layer is disposed under the substrate, and the second surface is located on a side of the third adhesive layer away from the substrate.

In an embodiment of the invention, the first surface has a first coverage area covered by the first adhesive layer, the first coverage area has a coverage area, the perforation has an aperture area on the first surface, and the perforation is located in the first coverage area. The ratio of the sum of the opening areas to the area of coverage is greater than or equal to 5%.

In an embodiment of the invention, the first surface has a coverage covered by the first adhesive layer, the coverage has a coverage area, the perforation has an open area on the first surface, and the aperture is located in the coverage area. The ratio to the coverage area is less than or equal to 80%.

In the present invention, the tape structure includes a body, at least one perforation, and a first adhesive layer. The through hole is disposed on the body, and the first adhesive layer is disposed on the first surface of the body and contacts at least a portion of the sidewall of the through hole. Under such a structural design, the interface adhesion between the first adhesive layer and the body is effectively improved. When the tape structure is used in the touch display device, the bonding area and the adhesion between the plate and the display module can be effectively improved, and the plate is not easily peeled off or peeled off from the display module.

The above and other objects, features and advantages of the present invention will become more <RTIgt;

1, 1a, 1b, 1c‧‧‧ tape structure

2, 2a, 2b‧‧‧ display device

10, 10a‧‧‧ ontology

11, 11c‧‧‧ perforation

12, 12b‧‧‧ first adhesive layer

13, 13b‧‧‧ third adhesive layer

14‧‧‧Extension

101‧‧‧ first surface

102‧‧‧ second surface

103‧‧‧Substrate

104‧‧‧Ink layer

105‧‧‧Second Adhesive Layer

110‧‧‧ side wall

140‧‧‧Four adhesive layer

20‧‧‧Display module

21‧‧‧ plates

201‧‧‧Backlight unit

202‧‧‧ display panel

203, 203a‧‧‧ polarizer

R‧‧‧ range

H‧‧‧ gap

W‧‧‧ directions

FIG. 1 is a schematic top plan view of a tape structure according to an embodiment of the invention.

2 is a cross-sectional view taken along line AA of FIG. 1.

3 is a cross-sectional view showing the structure of a tape according to another embodiment of the present invention.

4 is a cross-sectional view showing the structure of a tape according to another embodiment of the present invention.

FIG. 5 is a schematic top plan view of a tape structure according to another embodiment of the present invention.

6 is a cross-sectional view of a display device according to an embodiment of the invention.

FIG. 6A is a cross-sectional view showing the tape structure attached to the display device according to an embodiment of the invention.

6B is a cross-sectional view showing the tape structure attached to the display device according to another embodiment of the present invention.

6C is a cross-sectional view showing the tape structure attached to the display device according to another embodiment of the present invention.

1 and FIG. 2, FIG. 1 is a schematic top view of a tape structure according to an embodiment of the present invention. 2 is a schematic cross-sectional view along line AA of FIG. 1. As shown in FIG. 1 and FIG. 2, the tape structure 1 of the embodiment includes a body 10, at least one through hole 11 and a first adhesive layer 12. The body 10 has opposing first and second surfaces 101, 102. The perforations 11 are disposed in the body 10 and the perforations 11 have sidewalls 110 between the first surface 101 and the second surface 102. The first adhesive layer 12 is disposed on the first surface 101 of the body 10 and covers the through hole 11 and contacts at least a portion of the sidewall 110 of the through hole 11 . The first adhesive layer 12 is, for example, a solid colloid or a liquid body, and the solid colloid is, for example, a double sided adhesive, but the invention is not limited thereto.

As shown in FIG. 1 and FIG. 2, in the embodiment, the number of the through holes 11 disposed in the body 10 is, for example, a plurality of arrays, but the present invention is not limited thereto, and the number and arrangement of the through holes 11 are as follows. It can be adjusted according to the needs of the actual situation. As shown in FIG. 2, the first adhesive layer of the embodiment contacts at least a portion of the sidewall 110 of the through hole 11, and specifically, the first adhesive layer 12 substantially contacts the upper half of the sidewall 110 of the through hole 11. . Since the body 10 of the tape structure 1 of the embodiment is provided with at least one through hole 11 and the first adhesive layer 12 contacts at least a portion of the side wall 110 of the through hole 11, the first adhesion is effectively improved under the design of such a structure. The interface adhesion between the layer 12 and the body 10 increases the contact area of the first adhesive layer 12 with the body 10. need In particular, the first adhesive layer 12 described in this embodiment only needs to contact the sidewalls 110 of the through holes 11 to achieve the effect of improving the adhesion between the first adhesive layer 12 and the body 10, as for the first adhesive. The contact area of the layer 12 with the sidewalls 110 of the perforations 11 may vary depending on actual needs. For example, the first adhesive layer 12 may completely cover the sidewalls 110 of the perforations 11.

As shown in FIG. 1 and FIG. 2, the body 10 of the present embodiment is, for example, a light-shielding tape, which comprises a substrate 103, an ink layer 104, and a second adhesive layer 105. The material of the substrate 103 is, for example, polyethylene terephthalate (PET), but the invention is not limited thereto. The ink layer 104 is disposed on the substrate 103, and the first surface is located on a side of the ink layer 104 away from the substrate 103. The second adhesive layer 105 is disposed under the substrate 103, and the second surface 102 is located on a side of the second adhesive layer 105 away from the substrate 103. In addition, in other embodiments, an aluminum foil layer (not shown) may be disposed between the ink layer 104 and the substrate 103 and between the second adhesive layer 105 and the substrate 103, for example. In addition, the tape structure 1 described in this embodiment further includes an extension portion 14 extending outward from the body 10 (in a direction away from the body 10). This extension 14 has a fourth adhesive layer 140 that extends outwardly from the second adhesive layer 105.

It is worth mentioning that, as shown in FIG. 1 , the first surface 101 of the tape structure 1 described in this embodiment has a coverage covered by the first adhesive layer 12 (such as the range of the black dot coverage area in FIG. 1 ). And the coverage area has a coverage area (such as the area of the black dot coverage area in FIG. 1 ), and each of the through holes 11 has an open area on the first surface 101 (the area enclosed by the circular dotted line in FIG. 1 ), the coverage area The coverage area includes the open area of each of the perforations 11. In this embodiment, the ratio of the sum of the opening areas of the perforations 11 in the coverage area to the coverage area is, for example, greater than or equal to 5%, but the invention is not limited thereto. That is, in the case where the ratio of the sum of the opening areas of the perforations 11 to the coverage area is greater than or equal to 5%, a sufficient number of side walls 110 of the perforations 11 are provided for the first adhesive layer 12 to adhere, the first adhesive The interface adhesion between layer 12 and body 10 has been significantly improved. In addition, in other implementations, the ratio of the sum of the opening areas of the perforations 11 in the coverage area to the coverage area is, for example, less than or equal to 80%. In this structural design, in addition to effectively improving the first adhesive layer 12 The adhesion between the interface with the body 10 can further prevent the overall tape structure from being broken due to insufficient strength.

Please refer to FIG. 3, which is a cross-sectional view of a tape structure 1a according to another embodiment of the present invention. The tape structure 1a of the present embodiment is similar to the tape structure 1 shown in FIG. 1 and FIG. 2, except that the tape structure 1a of the present embodiment further includes a third adhesive layer 13. The third adhesive layer 13 is disposed on the second surface 102 of the body 10 and covers the through hole 11 and contacts at least a portion of the sidewall 110 of the through hole 11 . The first adhesive layer 12 and the third adhesive layer 13 in this embodiment respectively contact at least a portion of the sidewall 110 of the through hole 11 . Specifically, the first adhesive layer 12 substantially contacts the sidewall 110 of the through hole 11 . The second adhesive layer 13 is substantially in contact with the lower half of the side wall 110 of the perforations 11.

It is worth mentioning that in other embodiments, the tape structure 1b shown in FIG. 4 has the first adhesive layer 12b and the second adhesive layer 13b contacting each other through the through holes 11. Under the design of such a structure, the interface adhesion between the first adhesive layer 12b and the third adhesive layer 13b and the body 10 is effectively improved, and since the first adhesive layer 12b and the third adhesive layer 13b are in contact with each other, The risk of the first adhesive layer 12b and the third adhesive layer 13b being separated from the body 10 is effectively reduced.

Please refer to FIG. 5 , which is a top plan view of a tape structure 1 c according to another embodiment of the present invention. The tape structure 1c of the present embodiment is similar to the tape structure 1 shown in FIG. 1 and FIG. 2, except that the through hole 11c disposed in the body 10 according to the embodiment extends, for example, along the W direction and is substantially presented. Long strips. It should be particularly noted that since the opening area of the long-shaped perforated hole 11c is large, that is, the surface area of the side wall 110 of the perforation 11c is also large, therefore, in the present embodiment, only one length is disposed on the body 10. Strip-shaped perforations 11c, but when the first adhesive layer 12 is disposed on the first surface 101 of the body 10 and contacts at least a portion of the sidewalls 110 of the through-hole 11c, it is also possible to effectively improve the relationship between the first adhesive layer 12 and the body 10. The effect of interface adhesion. Of course, the long-shaped perforations 11c described in this embodiment can also be increased in number according to the actual situation.

Please refer to FIG. 6 , which is a cross-sectional view of a display device 2 according to an embodiment of the invention. As shown in FIG. 6, the display device 2 of the present embodiment includes a display module 20, a sheet 21, and a tape structure similar to that shown in FIGS. The display module 20 is, for example, a liquid crystal display module, but the invention is not limited thereto. The display module 20 is mainly composed of the backlight unit 201, the display panel 202 and the polarizer 203, and the remaining detailed structure of the display module 20 is a technical means well known in the art, and is not a feature of the present invention, so it is not described here. . The plate 21 is disposed on the display module 20. The plate 21 is, for example, a touch panel, a 3D panel, or a cover lens, but the invention is not limited thereto. The specific embodiment of the tape structure attached to the display module 20 is described in detail in the following paragraphs. It should be particularly noted that the illustrations 6A-6B appearing in the following paragraphs are similar to the dotted lines shown in FIG. The range R enclosed by the circular frame will be described.

As shown in FIG. 6A, it is a glue according to an embodiment of the present invention. The tape structure 1 of the present embodiment is sandwiched between the display module 20 and the plate 21 as shown in FIG. 6, specifically, the display module 20 and The sheets 21 are adhered to each other by the tape structure 1, that is, the first adhesive layer 12 and the second adhesive layer 105 of the tape structure 1 are bonded to the sheet 21 and the display module 20, respectively. In addition, in this embodiment, the extending portion 14 of the tape structure 1 is attached to the side surface of the display module 20 and a portion of the bottom surface by the fourth adhesive layer 140, and is viewed from above, the tape structure 1 The body 10 surrounds the polarizer 203. In addition, the gap H between the polarizer 203 and the plate member 21 may be filled with air, OCA (Optically Clear Adhesive), LOCA (Liquid Optically Clear Adhesive), etc., but the invention is not limited thereto.

As shown in FIG. 6B, it is a schematic cross-sectional view of the tape structure sticker 1 attached to the display device 2 according to another embodiment of the present invention. The tape structure 1 of the present embodiment is directly attached to the polarizer 203, and the tape structure 1a surrounds the gap H between the polarizer 203 and the plate 21 as viewed from above. In addition, the medium of the gap H may be filled with air, OCA (Optically Clear Adhesive), LOCA (Liquid Optically Clear Adhesive), etc., but the invention is not limited thereto.

As shown in FIG. 6C, it is a schematic cross-sectional view of the tape structure 1b according to another embodiment of the present invention attached to the display device 2. The tape structure 1b of the present embodiment is similar to the tape structure 1 shown in FIG. 6A, except that the tape structure 1b of the present embodiment has a first adhesive layer 12b and a third contact with the side wall 110 of the through hole 11. Adhesive layer 13b. The tape structure 1b is interposed between the display module 20 and the plate member 21. Specifically, the display module 20 and the plate member 21 are adhered to each other by the tape structure 1b, that is, the first adhesive layer 12b of the tape structure 1b and The third adhesive layer 13b is respectively adhered to the board 21 and the display module 20. In addition, the gap H between the polarizer 203 and the plate member 21 may be filled with air, OCA (Optically Clear Adhesive), LOCA (Liquid Optically Clear Adhesive), etc., but the invention is not limited thereto.

It should be particularly noted that the tape structures 1a and 1c described in FIG. 3 and FIG. 5 described above can be applied to the display device. The manner of implementation is similar to the embodiment shown in FIGS. 6A to 6C attached to the display device, and thus will not be described herein.

In summary, the tape structure of the embodiment of the present invention includes a body, at least one through hole, and a first adhesive layer. The through hole is disposed on the body, and the first adhesive layer is disposed on the first surface of the body and covers the through hole and contacts at least a portion of the sidewall of the through hole. Under such a structural design, the interface adhesion between the first adhesive layer and the body is effectively improved. When the tape structure is used in a display device, the bonding area and the adhesion between the plate and the display module can be effectively improved, and the plate is not easily peeled off or peeled off from the display module.

While the present invention has been described in its preferred embodiments, the present invention is not intended to limit the invention, and the present invention may be modified and modified without departing from the spirit and scope of the invention. The scope of protection is subject to the definition of the scope of the patent application.

1‧‧‧ tape structure

10‧‧‧ Ontology

11‧‧‧Perforation

12‧‧‧First adhesive layer

14‧‧‧Extension

101‧‧‧ first surface

102‧‧‧ second surface

103‧‧‧Substrate

104‧‧‧Ink layer

105‧‧‧Second Adhesive Layer

110‧‧‧ side wall

140‧‧‧Four adhesive layer

Claims (12)

An adhesive tape structure comprising: a body having a first surface and a second surface opposite to each other, and having at least one through hole disposed in the body, the at least one through hole having a side wall, the side wall being located on the first surface and the And a first adhesive layer disposed on the first surface of the body and covering the at least one through hole and contacting at least a portion of the at least one perforated sidewall. The tape structure of claim 1, further comprising a second adhesive layer disposed on the second surface of the body and contacting at least a portion of the at least one perforated sidewall. The tape structure of claim 2, wherein the first adhesive layer and the second adhesive layer are in contact with each other through the at least one perforation. The tape structure of claim 1, wherein the body comprises: a substrate; an ink layer disposed on the substrate, wherein the first surface is located on a side of the ink layer away from the substrate; A third adhesive layer is disposed under the substrate, and the second surface is located on a side of the third adhesive layer away from the substrate. The tape structure of claim 1, wherein the first surface has a coverage covered by the first adhesive layer, the coverage having a coverage area, the at least one perforation having an open area on the first surface, the ratio of the sum of the open areas of the at least one perforation in the coverage to the coverage area being greater than or equal to 5%. The tape structure of claim 1, wherein the first surface has a coverage covered by the first adhesive layer, the coverage has a coverage area, and the at least one perforation has an opening on the first surface The area, the ratio of the sum of the opening areas of the at least one perforation in the coverage area to the coverage area is less than or equal to 80%. A display device includes: a display module; a plate disposed on the display module; and a tape structure interposed between the display module and the plate, the tape structure comprising: a body having relative a first surface and a second surface, and having at least one perforation disposed on the body, the at least one perforation having a sidewall disposed between the first surface and the second surface; and a first adhesive The layer is disposed on the first surface of the body and covers the at least one through hole and contacts at least a portion of the sidewall of the at least one through hole. The display device of claim 7, wherein the tape structure further comprises a second adhesive layer disposed on the second surface of the body and contacting at least a portion of the at least one perforated sidewall. The display device of claim 8, wherein the tape knot The first adhesive layer and the second adhesive layer are in contact with each other through the at least one perforation. The display device of claim 7, wherein the body of the tape structure comprises: a substrate; an ink layer disposed on the substrate, wherein the first surface is located at the ink layer away from the substrate And a third adhesive layer disposed under the substrate, and the second surface is located at a side of the third adhesive layer away from the substrate. The display device of claim 7, wherein the first surface of the tape structure has a coverage area covered by the first adhesive layer, the coverage area has a coverage area, and the at least one perforation is in the first A surface has an open area, and the ratio of the sum of the open areas of the at least one perforation within the coverage to the coverage area is greater than or equal to 5%. The display device tape structure of claim 7, wherein the first surface of the tape structure has a coverage covered by the first adhesive layer, the coverage has a coverage area, and the at least one perforation is The first surface has an opening area, and the ratio of the sum of the opening areas of the at least one perforation in the coverage area to the coverage area is less than or equal to 80%.