TWI464504B - Sealant, peeling method thereof and display device using the same - Google Patents

Description

Frame glue and peeling method thereof and display device using same

The present invention relates to a sealant, and more particularly to a peeling-off frame seal and a display device using the same and a peeling method for the sealant.

In today's information society, people's dependence on electronic products is increasing. Electronic products such as mobile phones, handheld PCs, personal digital assistants (PDAs), or smart phones are everywhere in life. In order to achieve convenience, volume, and humanization, many information products have been converted from input devices such as traditional keyboards or mice to using touch panels as input devices. The touch panel can be assembled on a wide variety of flat panel displays so that the flat panel display has both display and input operation information.

In general, the touch panel must be installed on the surface of the electronic product to facilitate touch input and operation, or fit on the surface of the display panel to provide display touch function. At present, most of them use water glue or solid optical adhesive (OCA) to attach the touch panel to the surface of the display panel. However, in order to save cost, there is still a way to paste the double-sided adhesive with a word type. Touch panel and display panel.

For a device that is attached with a double-sided adhesive tape, when the touch panel and the display panel need to be separated to rework the touch panel or the display panel, or the terminal product is repaired in the future, the touch panel is directly The top of the display panel is peeled off. However, it is often easy to inadvertently damage the touch panel or the display panel during the process of tearing off the touch panel and the display panel.

In view of this, the present invention provides a sealant to reduce the damage rate of the terminal product repair or the maintenance of the terminal product in the future.

The invention also provides a peeling method of the sealant, so as to peel off the sealant between the two substrates without damaging the substrate.

The present invention further provides a display device which uses a frame glue which is easy to peel off to fit the two substrates to reduce the damage rate of the terminal product repair or the maintenance of the terminal product in the future.

The invention provides a sealant disposed between the first substrate and the second substrate and surrounding the first substrate and the second substrate. The frame glue is integrally formed and has a first end and a second end, wherein the first end is connected to the second end, and the sealant has a pre-cut line at the junction of the first end and the second end.

The invention also provides a method for stripping the sealant. The sealant is disposed between the first substrate and the second substrate and surrounds the first substrate and the second substrate. Moreover, the sealant is integrally formed and has a first end and a second end, wherein the first end is connected to the second end, and the sealant has a pre-cut line at the junction of the first end and the second end. The peeling method of the sealant is to first peel the first end of the sealant along the pre-tangential line and the second end, so that the first end is partially exposed outside the first substrate and the second substrate. Then, the sealant is pulled away from the first substrate and the second substrate by the first end of the sealant exposed on the portion other than the first substrate and the second substrate.

The present invention further provides a display device including a first substrate, a second substrate, and the above-mentioned sealant. The second substrate is disposed above the first substrate, and the sealant is disposed between the first substrate and the second substrate to surround the first substrate and the second substrate. Moreover, the sealant is integrally formed and has a first end and a second end, wherein the first end is connected to the second end, and the sealant has a pre-cut line at the junction of the first end and the second end.

The frame glue of the invention has a pre-cut line, so that the frame glue can be easily torn into two parts along the pre-cut line, and then the frame glue is separated from the first substrate and the second substrate to make the first substrate and the second substrate Separation. It can be seen that the present invention can effectively prevent the first substrate or the second substrate from being damaged during the process of peeling off the sealant.

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

The application of the sealant of the present invention will be described below by way of example of a display device, but it is not intended to limit the present invention. It will be appreciated by those skilled in the art that the sealant of the present invention can be applied between any two substrates that need to be bonded to each other.

1 is a cross-sectional view of a display device in accordance with an embodiment of the present invention, and FIG. 2 is a top perspective view of the display device of FIG. 1. Referring to FIG. 1 and FIG. 2 simultaneously, the display device 100 includes a first substrate 110, a second substrate 120, and a sealant 130. The second substrate 120 is disposed above the first substrate 110. In this embodiment, the first substrate 110 may be one of a display panel, a touch panel or a protective sheet, and the second substrate 120 is another one of the display panel, the touch panel or the protective sheet, but the present invention does not Limited to this. In addition, when the second substrate 120 is, for example, a touch panel or a protective sheet, the upper surface or the lower surface of the second substrate 120 may have a functional film layer (not shown), and the functional film layer may be, for example, an explosion-proof film. , anti-glare film, anti-reflection film, electromagnetic interference protective film or a combination thereof.

In the above, the first substrate 110 and the second substrate 120 are bonded to each other by the sealant 130. That is, the sealant 130 is disposed between the first substrate 110 and the second substrate 120. Specifically, the sealant 130 is, for example, a double-sided tape. In addition, the double-sided tape may, for example, include a conductive layer for grounding to protect against electromagnetic interference or to avoid electrostatic discharge. The sealant 130 is integrally formed and has a first end 132 and a second end 134 that are connected to each other. In other words, the sealant 130 is annular, and thus surrounds the space 140 with the first substrate 110 and the second substrate 120. In the present embodiment, for example, air is present in the space 140 therein. Since the sealant 130 is integrally formed, the contaminated particles of the external environment can be effectively blocked from entering between the first substrate 110 and the second substrate 120 to maintain the cleanliness between the first substrate 110 and the second substrate 120 to prevent light from passing through. Space 140 is disturbed and affects display quality.

In particular, the sealant 130 has a pre-cut line C at the junction of the first end 132 and the second end 134. The pre-cut line C is formed on the sealant 130 in a pre-cut manner, for example, having a plurality of small holes (not shown) arranged in a line to facilitate the tearing of the first end 132 easily with the second end 134. from. In this way, the sealant 130 can be peeled off from between the first substrate 110 and the second substrate 120 without damaging the first substrate 110 and the second substrate 120. The peeling method of the sealant 130 will be described below by way of an embodiment.

3 is a schematic view of a sealant in a peeling process according to an embodiment of the present invention. Referring to FIG. 3, when the first substrate 110 or the second substrate 120 needs to be reworked, the first substrate 110 and the second substrate 120 must be separated first. At this time, the first end 132 of the sealant 130 may be torn away from the second end 134 along the pre-tangent line C such that the first end 134 is partially exposed from between the first substrate 110 and the second substrate 120. Then, the sealant 130 can be pulled away from the first substrate 110 and the second substrate 120 by the exposed portion of the first end 132.

It is worth mentioning that the first end 132 of the sealant 130 can be designed with a rework mark adjacent to the pre-cut line C to facilitate the relevant person to find the position of the pre-cut line C according to the rework mark. Specifically, the rework mark may be a flange 131 as shown in FIG. 4, wherein the flange 131 is convexly convex toward the first end 132 along the extending direction of the pre-tangent line C. Alternatively, the rework mark may be a notch 231 as shown in FIG. 5, wherein the notch 231 is concave in the first end 132 along the extending direction of the pre-tangent line C. In this way, the relevant person can easily tear the first end 132 of the sealant 130 along the pre-tangent line C away from the second end 134 by hooking the flange 131 or the notch 231, and make a part of the first The end 132 is exposed between the first substrate 110 and the second substrate 120. In detail, the relevant person can use, for example, a tool having a hook end to project the flange 132 or the notch 231 between the first substrate 110 and the second substrate 120, but the invention is not limited thereto.

In summary, the present invention uses the integrally formed annular frame glue to bond the first substrate and the second substrate, thereby maintaining the cleanliness between the first substrate and the second substrate. Moreover, since the sealant has a pre-cut line, the sealant can be easily torn into two parts along the pre-cut line, and the sealant is pulled away from the first substrate and the second substrate to make the first substrate and the second substrate. Separation for easy subsequent rework or future end product maintenance. It can be seen that the present invention can effectively prevent the first substrate or the second substrate from being damaged during the process of peeling off the sealant. Therefore, applying the sealant to the display device can effectively improve the rework yield of the display device or the maintenance of the terminal product in the future.

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.

100. . . Display device

110. . . First substrate

120. . . Second substrate

130. . . Frame glue

131. . . Convex

132. . . First end

134. . . Second end

140. . . space

231. . . gap

C. . . Pre-cut line

1 is a schematic cross-sectional view of a display device in accordance with an embodiment of the present invention.

Figure 2 is a top perspective view of the display device of Figure 1.

3 is a schematic view of a sealant in a peeling process according to an embodiment of the present invention.

Figure 4 is a top perspective view of a display device in accordance with another embodiment of the present invention.

Figure 5 is a top perspective view of a display device in accordance with another embodiment of the present invention.

110. . . First substrate

120. . . Second substrate

130. . . Frame glue

132. . . First end

134. . . Second end

C. . . Pre-cut line

Claims (9)

A sealant is disposed between a first substrate and a second substrate, and surrounds the first substrate and the second substrate, the frame glue is integrally formed, and the sealant has a first end And a second end, the first end is connected to the second end, and the sealant has at least one pre-cut line at a junction of the first end and the second end, the first end has a rework mark, Located adjacent to the pre-cut line, the rework mark includes a notch that is recessed in the first end along the extending direction of the pre-cut line. The frame substrate of claim 1, wherein the first substrate is one of a display panel, a touch panel and a protective sheet, and the second substrate is the display panel, the touch panel and the protective sheet. The sealant of claim 1, wherein the sealant is a double-sided tape, and the double-sided tape comprises a conductive layer. The sealant of claim 1, wherein the substance located in the space comprises air. The method of peeling off the sealant is disposed between a first substrate and a second substrate, and a space is formed between the first substrate and the second substrate, the frame glue is integrally formed, and the frame is integrally formed. The glue has a first end and a second end, the first end is connected to the second end, and the sealant has at least one pre-cut line at the junction of the first end and the second end, wherein the One end has a notch located adjacent to the pre-cut line, and the notch is concave in the first direction along the extending direction of the pre-cut line And the peeling method comprises: tearing the first end of the sealant along the pre-tangential line and the second end, so that the first end is partially exposed from between the first substrate and the second substrate; The method of tearing the first end along the pre-cut line and the second end includes: tapping the gap between the first substrate and the second substrate to partially expose the first end to the first end a substrate and the second substrate; and the portion of the first end exposed from the first substrate and the second substrate, the frame glue is drawn between the first substrate and the second substrate from. A display device includes: a first substrate; a second substrate disposed above the first substrate; and a sealant disposed between the first substrate and the second substrate, and the first substrate and The second substrate is surrounded by a space, the frame glue is integrally formed, and the frame glue has a first end and a second end, the first end is connected to the second end, and the sealant has at least one The pre-cut line is located at the junction of the first end and the second end, the first end has a rework mark located adjacent to the pre-cut line, the rework mark includes a notch along the extending direction of the pre-cut line Concave at the first end. The display device of the sixth aspect of the invention, wherein the first substrate is one of a display panel, a touch panel and a protective sheet, and the second substrate is the display panel, the touch panel and the protective sheet. The display device of claim 6, wherein the sealant is a double-sided tape, and the double-sided tape comprises a conductive layer. The display device of claim 6, wherein the substance in the space comprises air.