JP3150608U - Adhesive bonding structure of touch panel stacking layer - Google Patents

Abstract

An adhesive bonding structure of a touch panel stacking layer capable of achieving a firm and tight adhesive bonding effect is provided. The adhesive bonding structure of the touch panel stacking layer is to be combined by adhesive bonding, and upper and lower adhesive bonding frames 14 and 24 are installed at outer peripheral edge portions of the bonding surface between the lower plate layers, respectively. In each adhesive bonding frame 14, 24, one adhesive bonding line or two or more adhesive bonding lines that maintain an equal distance from each other are formed, and when the two are adhesively bonded together, the upper and lower plates Adhesive bonding lines of the layers are bonded together to form a zipper-like adhesive bonding combination structure, thereby providing the largest adhesive bonding area between each other, providing the strongest and tightest adhesive bonding effect Can be achieved. [Selection] Figure 2

Description

  The present invention relates to an adhesive bonding structure of a touch panel stacking layer, and more particularly to an adhesive bonding structure of a touch panel stacking layer that can improve the stability and sealing performance of the adhesive bonding of the stacking layer.

  The structure of a general electric resistance type touch panel mainly includes two planar conductive films. The two conductive films are arranged facing each other with a certain gap between them, and usually the upper conductive film is arranged on the surface of a flexible transparent thin film, and the lower conductive film has a firm property. Install on the surface of the transparent substrate. In addition, a large number of convex isolation parts are installed between the two surfaces facing each other, a gap is left in the conductive film installation area, and an adhesive bonding frame is installed around the area. Thereby, both the flexible transparent thin film and the transparent substrate are integrally adhesively bonded and sealed.

  Normally, the adhesive bonding frame is installed on one of the substrate of the touch panel or the transparent thin film, or on the peripheral edge portion of both. In addition, the majority uses a printing method to apply an adhesive bonded material, thereby forming an adhesive bonding line in the adhesive bonding frame. At the time of printing, a viscous adhesive bond is applied onto the surface of the substrate or the transparent thin film through a printing net. In each of the applied adhesive joints, each printed and solidified adhesive joint line is formed by the interaction of the surface tension and cohesive force of the molecule itself, and the slightly cross-sectionally arcuate surface in the transverse cross section. Present naturally. Since the obtuse arcuate surface is only due to a relatively small joint contact surface, the adhesive bonding effect and the sealing performance after adhesive bonding are impaired, which leads to many disadvantageous features.

  In addition, many touch panels currently have the adhesive bonding frame arranged on the edge as much as possible in order to obtain the maximum active work area or from the viewpoint of aesthetics. It is becoming very narrow. However, as a result of the narrowing of the adhesive bonding frame, the installation width or number of the adhesive bonding lines that are applied and installed in the frame edges must be reduced. As a result, the bonding area is reduced, the stability of the touch panel adhesive bonding is lowered, and problems such as a poor sealing effect are caused. The present invention has been made in view of the above-mentioned drawbacks of the conventional adhesive bonding structure of the touch panel stacking layer.

  The first problem to be solved by the present invention is to provide a fastener-like adhesive bonding structure between the stacking plate layers of the touch panel, thereby ensuring the adhesive bonding after combining the plate layers and ensuring the sealing performance. It is providing the adhesion joining structure of the touch panel stacking layer which can be performed.

The invention of claim 1 is an adhesive joint, and upper and lower adhesive joint frames are respectively installed on the outer peripheral surface of the joint surface between the lower plate layers, and each adhesive joint frame includes: Each adhesive bonding line or two or more adhesive bonding lines that maintain an equal distance from each other are formed, and the adhesive bonding lines of the upper and lower plate layers are cross-installed to adhere to each other. When joining and combining, the convex part of the upper adhesive bonding line is fitted into and adhered to the concave part on the side surface of the lower adhesive bonding line, or the upper part by the concave part between the two lower adhesive bonding lines. In addition, the adhesive bonding structure of the touch panel stacking layer is characterized in that the surfaces of the adhesive bonding lines of the lower plate layer are integrally bonded to each other to form a fastener-like adhesive bonding combination structure.
The touch panel stacking layer adhesive according to claim 1, wherein the gap distance between the two adhesive bonding frames is substantially equal to or larger than the width of the cross section of the adhesive bonding line. It is a junction structure.
The invention of claim 3 is characterized in that the adhesive bonding structure of the touch panel stacking layer further includes an excess adhesive outlet on the other adhesive bonding line other than the innermost adhesive bonding line in the upper and lower adhesive bonding frames. It is set as the adhesion joining structure of the touchscreen stacking layer of Claim 1 characterized by the above-mentioned.
According to a fourth aspect of the present invention, there is provided the adhesive bonding structure of the touch panel stacking layer according to claim 1, wherein the adhesive bonding line employs an insulating adhesive bonding material or a conductive adhesive bonding material.
The invention of claim 5 is the touch-bonding stacking layer adhesive bonding structure according to claim 1, wherein the touch-bonding stacking layer adhesive bonding structure further comprises an alignment unit.
The invention of claim 6 is characterized in that the alignment unit has a touch panel stacking layer adhesive bonding structure according to claim 5, wherein a mat is installed on the upper and lower plate layers.
The invention according to claim 7 is the touch-bonding stacking adhesive bonding structure according to claim 5, wherein the alignment unit is an edge of the upper and lower plate layers.

  The adhesive bonding structure of the touch panel stacking layer is to be bonded and combined, and upper and lower adhesive bonding frames are respectively installed on the outer peripheral edge portions of the bonding surface between the lower plate layers. Each form one adhesive bonding line, or two or more adhesive bonding lines that maintain an equal distance from each other, and the adhesive bonding lines of the lower plate layer are cross-installed, The adhesive bonding line has a convex portion that fits and adheres to a concave portion on the side surface of the lower adhesive bonding line, or the upper and lower plate layers are adhesively bonded by a concave portion between the two lower adhesive bonding lines. The surfaces of the lines are bonded together to form a fastener-like adhesive joint combination structure, which has the largest adhesive joint area between each other and can achieve the most rigid and tight adhesive joint effect Two The gap distance of the adhesive bonding frame is approximately equal to or larger than the width of the cross section of the adhesive bonding line, and in the upper and lower adhesive bonding frames, on the other adhesive bonding lines other than the innermost adhesive bonding line, Install an excessive adhesive outlet, lead out excess adhesive to the outside, the adhesive bonding line adopts an insulating adhesive bonding material or conductive adhesive bonding material according to the difference in installation site, The adhesive bonding structure of the touch panel stacking layer further includes an alignment unit, and the alignment unit is configured such that a mat is installed on the upper and lower plate layers, and each of the plate layers is used without using the mat. You may align using an edge.

  The present invention can be further applied, and the fastener-like adhesive bonding combination structure can be used for the adhesive bonding line combination structure, and other structural parts such as the upper and lower combination layers, for example, an insulating adhesive bonding layer and the like It can also be applied to stacking combinations with the metal guides on the edge of the plate layer, and the insulating adhesive bonding layer is provided with protruding convex portions corresponding to the installation gaps of the respective metal guides. Then, a fastener-like adhesive bonding structure that is just inserted into the recesses between the metal guides and thus vertically fitted is configured.

  The present invention can improve the stability and sealing performance of the adhesive bonding of the stacking layer.

It is a three-dimensional view of the present invention. It is a separation figure of the present invention. It is sectional drawing in the AA sectional line of FIG. It is sectional drawing in the BB sectional line of FIG. It is sectional drawing of this invention 2nd Example.

  As shown in FIGS. 1, 2, and 3, the touch panel of the first embodiment of the present invention covers a glass substrate 1 with a transparent touch film 2. On the upper surface of the glass substrate 1, a lower conductive film 11 and a number of convex isolation parts 12 are installed. A small number of metal guides 13 connected to the conductive film 11 are installed in a peripheral portion near the outside of each conductive film 11. A lower adhesive bonding frame 14 is installed on the inner peripheral edge of the glass substrate 1.

  An upper conductive film 21 is provided on the lower surface of the transparent touch film 2, and a few metal guides 23 connected to the conductive film 21 are provided in a portion near the periphery of each conductive film 21. An upper adhesive bonding frame 24 is installed on the inner peripheral edge of the transparent touch film 2. In the lower adhesive bonding frame 14, three adhesive bonding lines 14 a, 14 b, and 14 c installed at equal distances are formed. In the upper adhesive bonding frame 24, two adhesive bonding lines 24a and 24b installed at equal distances are formed. When the upper and lower upper adhesive bonding frames 14 and 24 are combined by adhesive bonding, the convex portion of the pattern of the upper adhesive bonding lines 24a and 24b is exactly the concave portion between the lower adhesive bonding lines 14a, 14b and 14c. Insert. As a result, the convex and concave portions of the upper and lower adhesive bonding lines 14a, 14b, 14c, 24a and 24b are fitted to each other, and the surfaces of the respective adhesive bonding lines 14a, 14b, 14c, 24a and 24b are integrated with each other. Adhesive bonding. In this way, a fastener-like adhesive joint combination structure is formed.

  Next, as shown in FIGS. 2 and 4, in the upper and lower upper adhesive bonding frames 14 and 24, on the other adhesive bonding lines 14a, 14b and 24a other than the innermost adhesive bonding lines 14c and 24b, All the excess adhesive outlet 8 is installed. As a result, when the upper and lower adhesive bonding lines 14a, 14b, 14c, 24a, and 24b are adhesively bonded, excess adhesive is led out and discharged, so that the adhesive bonding site is flat and well-organized. Hold. In addition, the risk that the adhesive flows into the touch detection area of the conductive film and causes interference with the signal can be eliminated.

  Subsequently, as shown in FIG. 5, in the second embodiment of the present invention, when the width of the concave portion of each adhesive bonding line 14a, 14b, 14c, 24a, 24b is larger than the cross-sectional width of the frame pattern, the adhesive bonding When combined, the top, bottom and one side surfaces of the upper and lower adhesive bonding lines 14a, 14b, 14c, 24a and 24b are adhesively bonded to each other, thus forming a solid combination.

DESCRIPTION OF SYMBOLS 1 Glass substrate 11 Lower conductive film 12 Convex isolation part 13 Metal guide 14 Lower adhesive joining frame 14a, 14b, 14c Adhesive joining line 2 Transparent touch film 21 Upper conductive film 23 Metal guide 24 Upper adhesive joining frame 24a, 24b Adhesive joining line 8 Excess adhesive outlet

Claims (7)

  The upper and lower adhesive bonding frames are installed on the outer peripheral surface of the bonding surface between the upper and lower plate layers to be combined by adhesive bonding, and one adhesive bonding line is provided in each of the adhesive bonding frames. Alternatively, two or more adhesive bonding lines that maintain an equal distance between each other are formed, and the upper and lower adhesive layer bonding lines exhibit cross installation, and when both are bonded and bonded together, The convex portion of the upper adhesive bonding line is fitted into and adhered to the concave portion on the side surface of the lower adhesive bonding line, or the upper and lower plate layers are adhesively bonded by the concave portion between the two lower adhesive bonding lines. The adhesive bonding structure of the touch panel stacking layer, wherein the surfaces of the lines are integrally bonded to each other to form a fastener-like adhesive bonding combination structure.   The adhesive bonding structure of the touch panel stacking layer according to claim 1, wherein a gap distance between the two adhesive bonding frames is substantially equal to or larger than a cross-sectional width of the adhesive bonding line.   The adhesive bonding structure of the touch panel stacking layer is further characterized in that, in the upper and lower adhesive bonding frames, an excess adhesive outlet is installed on another adhesive bonding line other than the innermost adhesive bonding line. The adhesive bonding structure of the touch panel stacking layer according to claim 1.   The adhesive bonding structure of the touch panel stacking layer according to claim 1, wherein the adhesive bonding line employs an insulating adhesive bonding material or a conductive adhesive bonding material.   The adhesive bonding structure of the touch panel stacking layer according to claim 1, wherein the adhesive bonding structure of the touch panel stacking layer further includes an alignment unit.   6. The adhesive bonding structure for a touch panel stacking layer according to claim 5, wherein the alignment unit is configured to install a rim on the upper and lower plate layers.   The adhesive bonding structure for a touch panel stacking layer according to claim 5, wherein the alignment unit is an edge of the upper and lower plate layers.

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