TWI611241B - Composite tape - Google Patents

Abstract

A composite tape for covering a display module includes a first tape and a second tape. The first tape has a first surface and a second surface opposite to each other, and the second surface is adhered to the upper surface and the side surface of the display module. The second tape is adhered to the first surface of the first tape and the lower surface of the display module. The thickness of the first tape is greater than the thickness of the second tape.

Description

Compound tape

The invention relates to a composite tape, in particular to a composite tape comprising a first tape and a second tape, and the thickness of the first tape is greater than that of the second tape, which can reduce the width and thickness of the display module.

Recently, electronic products on the market are pursuing thinness and thinness, and the non-display area / frame and thickness of the display module are becoming narrower and thinner.

Under such a thin and light structure, the area for attaching the tape to the display module is limited. Thinner tapes tend to warp away from the display module due to insufficient viscosity; and thicker tapes in pursuit of higher viscosity will increase the width and thickness of the module, which does not meet the module size requirements.

An embodiment of the present invention is to provide a composite tape including a first tape and a second tape, and the thickness of the first tape is larger than that of the second tape, which can reduce the width and thickness of the display module.

An embodiment of the present invention provides a composite tape for covering a display module, including a first tape and a second tape. The first tape has a first surface and a second surface opposite to each other, and the second surface is adhered to the display. An upper surface and a side surface of the module; and a second tape adhered to the first surface of the first tape and the lower surface of the display module, wherein the thickness of the first tape is greater than the thickness of the second tape.

In some embodiments, the first tape has a first end edge located on a side surface of the display module, and the first end edge does not protrude from a boundary between the side surface and the lower surface.

In some embodiments, the second tape has a second end edge located on the first surface of the first tape, and the second end edge does not protrude from the boundary between the side surface and the upper surface of the display module.

In some embodiments, the length of the second tape overlapping the first tape is less than or equal to the height of the side surface.

In some embodiments, the first tape includes at least two metal layers.

In some embodiments, at least one of the two metal layers of the first tape is an aluminum layer.

In some embodiments, the ratio of the thickness of the first tape to the thickness of the second tape is greater than two.

In some embodiments, the display module covered by the composite tape includes a display panel, and the second surface of the first tape is adhered to the display panel.

In some embodiments, the first tape does not overlap the polarizer on the display panel.

In some embodiments, the length of the first tape adhered to the upper surface of the display module is shorter than the length of the second tape adhered to the lower surface of the display module.

The above description of the content of the present invention and the description of the following embodiments are used to demonstrate and explain the principle of the present invention, and provide further explanation of the scope of the patent application of the present invention.

In the following, a plurality of embodiments of the present invention will be disclosed graphically. For the sake of clarity, many practical details will be described in the following description. It should be understood, however, that these practical details should not be used to limit the invention. That is, in some embodiments of the present invention, these practical details are unnecessary. In addition, in order to simplify the drawings, some conventional structures and components will be shown in the drawings in a simple and schematic manner.

Please refer to FIG. 1, which is a schematic side view of a display module covered with a composite tape according to an embodiment of the present invention. This example is a composite tape 10 that can be used to cover the display module 20. The display module 20 includes a display panel 202 and a frame 204. The display panel 202 is, for example, a liquid crystal display panel, an organic light emitting display panel, or an electronic paper panel, but is not limited thereto. The composite tape 10 covers and fixes the display panel 202 and the frame 204, and includes a first tape 102 and a second tape 104. The first tape 102 includes a first surface 1021 and a second surface 1022 opposite to each other. The first tape 102 is bent and attached to the display module 20, and the second surface 1022 is adhered to the upper surface 203 and the side surface 205 of the display module 20. The second adhesive tape 104 is bent and attached to the display module 20, wherein the second adhesive tape 104 is partially attached to the first adhesive tape 102 and partially attached to the lower surface 207 of the display module 20.

In this embodiment, the thickness of the first tape 102 is greater than that of the second tape 104. Since the non-display area of the display module in the narrow frame structure is narrow, and has a large thickness and good adhesion, the first adhesive tape 102 can have a good adhesion effect on a small adhesive area and is not easy to warp or detach. The upper surface 203 of the display module 20. In addition, the first adhesive tape 102 is only attached to the side surface 205 of the display module 20 after being bent, and is no longer attached to the lower surface 207 of the display module 20. Instead, the second adhesive tape 104 having a smaller thickness is adhered to The first surface 1201 of the first tape is bent and adhered to the lower surface 207. This embodiment can also ensure that the first tape 1021 will not be detached from the side surface 205 of the display module 20 during transportation or subsequent installation if the side attachment area is insufficient in the thinned model, and because it is attached to the display mold The thickness of the second adhesive tape 104 on the lower surface 207 of the group 20 is relatively small, so that it can reduce the overall thickness at the same time with good adhesion. In addition, since the second tape 104 has a small thickness and has a low influence on the overall thickness, compared with the adhesion length L2 of the first tape on the upper surface 203 of the display module 20, the second tape is on the lower surface of the display module 20. The adhesion length L3 of 207 may be longer.

In one embodiment, the ratio of the thickness of the first tape 102 to the thickness of the second tape 104 may be greater than 2. This configuration can have a better adhesion effect and a smaller module thickness. In a specific embodiment, the thickness of the first tape 102 is 0.06 mm, and the thickness of the second tape 104 is 0.01 mm.

In an embodiment, the first adhesive tape 102 may include at least two metal layers. Such an adhesive tape is less likely to be reset after being bent, and thus less likely to warp away from the display module 20. At least one of the two metal layers of the first tape 102 may be an aluminum layer, and may be, for example, a double aluminum tape.

The first tape 1021 has a first end edge 1023 on the side surface 205 of the display module 20, and the second tape 104 has a second end edge 1043 on the first surface 1021 of the first tape 102. Ideally, the first end edge 1023 is aligned with the bottom edge of the side surface 205, that is, aligned with the junction of the side surface 205 and the lower surface 207; the second end edge 1043 is aligned with the top edge of the side surface 205, that is, aligned with The boundary between the side surface 205 and the upper surface 203 is aligned. At this time, the first adhesive tape 102 can have the largest attaching area with the display module 20, and the second adhesive tape 104 can have the largest attaching area with the first adhesive tape 102. At the same time, since the first tape 102 and the second tape 104 do not protrude from the bottom edge and the top edge of the side surface 205, the module thickness is not increased. However, in consideration of manufacturing tolerances and accuracy during manual assembly, the first end edge 1023 may be slightly retracted from the bottom edge of the side surface 205, and the second end edge 1043 may be slightly retracted from the top edge of the side surface 205. In other words, the length L1 of the overlapping portion of the first tape 102 and the second tape 104 will be less than or equal to the height H of the side surface 205 of the display module 20. It should be noted that the height H of the side surface 205 is the distance from the top edge to the bottom edge of the side surface 205, and the measurement direction of the length L1 and the measurement direction of the height H are substantially the same.

Please refer to FIG. 2, which is a schematic side view of a specific embodiment of the present invention. In this embodiment, the display panel 202 is a liquid crystal panel, and includes an upper substrate 2021 and a lower substrate 2022, and an upper polarizer 2023 and a lower polarizer 2024 attached to the upper substrate 2021, respectively. The frame 204 may include a plastic frame 2043 and a metal frame 2045, but is not limited thereto. In other embodiments, the frame 204 may be a single frame that is integrally formed. A backlight unit may be installed between the display panel 202 and the frame 204. Here, only the light guide plate 2041 is shown as an illustration. In this embodiment, the upper polarizer 2023 is attached to the edge of the display panel 2021, so the first tape 102 adhered to the upper surface of the display module 20 is attached to the outer surface of the upper polarizer 2021.

Please refer to FIG. 3, which is a schematic side view of another embodiment of the present invention. The architecture of this embodiment is similar to the embodiment of FIG. 2 except that the upper polarizer 2023 of this embodiment is not attached to the edge of the upper substrate 2021 of the display panel. In this case, the first tape 102 is preferably not overlapped with the upper polarizer 2023, that is, the first tape adhered to the upper surface 203 of the display module is attached to the outer surface of the upper substrate 2021 of the display panel 202. Since the first adhesive tape 102 and the upper polarizer 2023 are not overlapped, the overall module thickness can be lower.

Although the present invention has been disclosed in various embodiments as above, it is not intended to limit the present invention. Any person skilled in the art can make various modifications and retouches without departing from the spirit and scope of the present invention. The scope of protection shall be determined by the scope of the attached patent application.

10‧‧‧ Composite tape

102‧‧‧The first tape

1021‧‧‧First surface

1022‧‧‧Second surface

1023‧‧‧First edge

104‧‧‧Second tape

1043‧‧‧ second edge

20‧‧‧Display Module

202‧‧‧Display Panel

2021‧‧‧Upper substrate

2022‧‧‧ Lower substrate

2023‧‧‧Up Polarizer

2024‧‧‧ Lower Polarizer

203‧‧‧upper surface

204‧‧‧Frame

2041‧‧‧Light guide plate

2043‧‧‧Plastic frame

2045‧‧‧Metal frame

205‧‧‧side surface

207‧‧‧ lower surface

H‧‧‧Side surface height

L1‧‧‧ overlapping length of the first tape and the second tape

L2‧‧‧ The length of the first tape adhered to the upper surface

L3‧‧‧ The length of the second tape adhered to the lower surface

FIG. 1 is a schematic side view of a display module covered with a composite tape according to an embodiment of the present invention. 2 is a schematic side view of a display module covered with a composite tape according to an embodiment of the present invention. 3 is a schematic side view of a display module covered with a composite tape according to another embodiment of the present invention.

10‧‧‧ Composite tape

102‧‧‧The first tape

1021‧‧‧First surface

1022‧‧‧Second surface

1023‧‧‧First edge

104‧‧‧Second tape

1043‧‧‧ second edge

20‧‧‧Display Module

202‧‧‧Display Panel

203‧‧‧upper surface

204‧‧‧Frame

205‧‧‧side surface

207‧‧‧ lower surface

H‧‧‧Side surface height

L1‧‧‧ overlapping length of the first tape and the second tape

L2‧‧‧ The length of the first tape adhered to the upper surface

L3‧‧‧ The length of the second tape adhered to the lower surface

Claims (10)

A composite tape is used to cover a display module. The composite tape includes a first tape having a first surface and a second surface opposite to each other, and the second surface is adhered to one of the display modules. A surface and a side surface; and a second tape adhered to the first surface of the first tape and a lower surface of the display module; wherein the thickness of the first tape is greater than the thickness of the second tape. For example, the composite tape of item 1 of the patent application, wherein the first tape has a first end edge located on the side surface of the display module, and the first end edge does not protrude from the side surface and the lower surface. Junction. For example, the composite tape of item 1 of the patent application, wherein the second tape has a second end edge on the first surface of the first tape, and the second end edge does not protrude from the side of the display module. The interface between the surface and the upper surface. For example, the composite tape of the first scope of the patent application, wherein the length of the second tape overlapping the first tape is less than or equal to the height of the side surface. For example, the composite tape of the first patent application scope, wherein the first tape comprises at least two metal layers. For example, in the composite adhesive tape No. 5, the at least one of the two metal layers is an aluminum layer. For example, the composite tape of the first scope of the patent application, wherein the ratio of the thickness of the first tape to the thickness of the second tape is greater than two. For example, the composite tape of item 1 of the patent application scope, wherein the display module covered by the composite tape includes a display panel, and the second surface of the first tape is adhered to the display panel. For example, the composite tape of the eighth aspect of the patent application, wherein the first tape does not overlap the polarizer on one of the display panels. For example, the length of the first tape adhered to the upper surface of the display module is smaller than the length of the second tape adhered to the lower surface of the display module.