TW201308143A - Electronic apparatus and assembling method and application thereof - Google Patents

Abstract

An electronic apparatus, an assembling method and an application thereof are disclosed. The assembling method of the electronic apparatus comprises the following steps: forming a sealant on a substrate, wherein the sealant has at least one air drain opening; forming a liquid adhesive within the sealant, so as to form an adhesive layer; covering another substrate on the adhesive layer; performing a vacuum-pumping for the adhesive layer; and curing the adhesive layer. The electronic apparatus may be a touch screen display apparatus.

Description

Electronic device and its assembly method and application

The present invention relates to a touch display device for an electronic device and an assembly method and application thereof, and more particularly to an electronic device capable of ensuring assembly quality, an assembly method thereof, and a touch display device applied thereto.

Adhesives are currently used in a variety of electronic devices for assembly. Taking a touch display as an example, the touch display can be composed of a protective lens, a touch panel and a display. Protective lenses are used to protect the touch display to reduce damage to the touch display. The touchpad is used to sense the touch and movement of an object, such as a liquid crystal display (LCD). Protective lenses, touchpads, and displays are bonded together using an adhesive. The adhesive needs to be uniformly formed on the back surface of the protective lens, the two sides of the touch panel, and the surface of the display to integrate the protective lens, the touch panel, and the display.

When an adhesive is formed between the substrates of the electronic device, a sealant may be applied to the substrate, and then water is applied to the sealant to form an adhesive layer between the substrates. However, since the air bubbles are easily sealed in the sealant of the adhesive layer, the bonding strength of the substrate of the electronic device is affected, thereby affecting the assembly quality of the electronic device.

Therefore, an aspect of the present invention provides an electronic device, an assembly method thereof, and a touch display device applied thereto, so as to form at least one exhaust opening on the sealant, thereby discharging air bubbles in the water gel to ensure bonding glue. The formation quality of the layer can further improve the substrate assembly quality of the electronic device.

According to an embodiment of the present invention, the electronic device of the present invention comprises at least two substrates and at least one bonding layer, wherein the bonding layer is formed between the substrates, wherein the bonding layer comprises a sealant and a water gel, and the sealant has at least A vent opening, the water glue is formed in the sealant.

Moreover, according to an embodiment of the invention, the touch display device of the present invention comprises a protective lens, a touch panel, a display panel and at least one bonding layer. The touch panel is disposed on one side of the protective lens, the display panel is disposed on one side of the touch panel, and at least one bonding layer is formed between the protective lens and the touch panel, wherein the bonding layer comprises a The frame glue and the water glue, the frame glue has at least one vent opening, and the water glue is formed in the frame glue.

Moreover, in accordance with an embodiment of the present invention, the method of assembling an electronic device of the present invention includes the steps of: providing a substrate; forming a sealant on the substrate, wherein the sealant has at least one exhaust opening; forming a water gel Forming a bonding layer in the sealant; bonding another substrate to the bonding layer; vacuuming the bonding layer; and curing the bonding layer.

In one embodiment of the invention, the weight percent concentration of the sealant is greater than the weight percent concentration of the water gel.

In an embodiment of the invention, the sealant has a plurality of exhaust openings formed on opposite sides of the sealant.

In an embodiment of the invention, the sealant is rectangular and has four exhaust openings formed at four corners of the sealant.

In an embodiment of the invention, the opening width of the exhaust opening is 2 mm or more and 2 cm or less.

In an embodiment of the invention, the bonding layer further comprises at least one barrier strip formed on an outer side of the exhaust opening for blocking the water gel oozing from the exhaust opening.

In an embodiment of the invention, the bonding layer is formed between the touch panel and the display panel.

In an embodiment of the present invention, the method of assembling an electronic device further includes the step of forming at least one barrier strip on an outer side of the exhaust opening to block the water gel oozing from the exhaust opening.

Therefore, the electronic device, the assembly method thereof and the touch display device of the present invention can utilize the exhaust opening of the sealant to extract air bubbles in the water gel to prevent the air bubbles in the water gel from affecting the joint strength of the adhesive layer. Therefore, the substrate assembly quality of the electronic device can be ensured.

The above and other objects, features, advantages and embodiments of the present invention will become more apparent and understood. It is to be understood that the embodiments are not intended to limit the invention.

The electronic device of this embodiment can be, for example, a touch display device, a display device, a tablet computer, a smart phone, a notebook computer, a desktop computer, a television, a satellite navigation, an on-board display, an aviation display, or a portable DVD. A player or the like includes at least two substrates and at least one bonding layer, and the bonding layer is formed between the substrates for bonding and assembling the substrates into one body.

Hereinafter, the touch display device 100 to which the electronic device of the present invention is applied will be described as an example. However, the present invention is not limited thereto, and the present invention can also be applied to other types of electronic devices.

Please refer to FIG. 1 , which is a schematic diagram of a touch display device according to a first embodiment of the present invention. The touch display device 100 of the present embodiment can have a touch function and can be used for display development. The touch display device 100 can include a protective lens 110 , a bonding layer 120 , a touch panel 130 , a display panel 140 , and a backlight module 150 . The protective lens 110 is used to protect the touch display device 100. The bonding layer 120 is used to integrate the protective lens 110, the touch panel 130 and the display panel 140. The touch panel 130 is used for performing touch functions and displaying The panel 140 is used to display images, and the backlight module 150 is used to provide backlights to the display panel 140.

As shown in FIG. 1 , the protective lens 110 of the present embodiment can be disposed at the outermost side of the touch display device 100 for protecting and packaging the overall structure of the touch display device 100 , and can have anti-scratch, moisture-proof, and anti-glare. , anti-static, reduce reflection and other functions. The touch panel 130 is disposed on the back surface of the protective lens 110 by using the bonding layer 120, and is located in the display area 112 for sensing touch and movement of a finger or an object to perform a touch function. The display panel 140 is disposed on the touch panel 130 by using the second optical adhesive layer 140. The display panel 140 is, for example, a liquid crystal display (LCD) panel. The backlight module 150 is disposed on one side of the display panel 140 for providing a backlight to the display panel 140.

Please refer to FIG. 1 and FIG. 2. FIG. 2 is a schematic diagram of a bonding layer according to a first embodiment of the present invention. The material of the bonding layer 120 of the present embodiment is, for example, an optical adhesive (OCA) formed between the protective lens 110, the touch panel 130, and the display panel 140 to bond and assemble the substrate. The bonding layer 120 includes a sealant 121 and a water gel 122. The sealant 121 is used to surround the water gel 122 to ensure the coating range of the water gel 122, thereby ensuring the formation quality of the water gel 122. The water gel 122 is formed in the sealant 121 for bonding between the two substrates (such as the protective lens 110, the touch panel 130, and the display panel 140). Wherein, the weight percentage concentration of the sealant 121 is greater than the weight percentage of the water gel 122 to ensure the formation range of the bonding layer 120.

As shown in FIG. 2, the shape of the sealant 121 of the present embodiment may be any shape, such as a rectangle or a circle, and the sealant 121 has at least one exhaust opening 123 for discharging the infiltration into the water gel 122. Air bubbles ensure the formation quality of the bonding layer 120. The exhaust opening 123 can be opened at any position of the sealant 121 to allow air bubbles in the water gel 122 to be discharged. The opening width of the exhaust opening 123 is preferably 2 mm or more and 2 cm or less, for example, 1 cm, in order to avoid affecting the surrounding function of the sealant 121, and to smoothly discharge the air bubbles.

Please refer to FIG. 3, which is a schematic diagram of a bonding layer in accordance with an embodiment of the present invention. In an embodiment, the sealant 121 may have a plurality of exhaust openings 123 formed on opposite sides of the sealant 121, respectively. Therefore, when the water gel 122 in the sealant 121 is sucked, the fluid (water gel 122 or gas) between the exhaust openings 123 can form a convection condition, thereby facilitating the discharge of the gas (bubbles).

Please refer to FIG. 4, which is a schematic diagram of a bonding layer according to another embodiment of the present invention. In another embodiment, the sealant 121 may have a rectangular shape and have four exhaust openings 123 formed at four corners of the sealant 121, respectively. Therefore, when the water gel 122 in the sealant 121 is sucked, the fluid (water gel 122 or gas) between the symmetrically disposed exhaust openings 123 can also form a convection condition, thereby facilitating the discharge of gas (bubbles). .

Referring to FIG. 5, a flow chart of a method for assembling an electronic device according to a first embodiment of the present invention is shown. When the electronic device of the embodiment (such as the touch display device 100) is assembled, the method for assembling the electronic device of the embodiment may include the following steps.

As shown in FIG. 5, in step S201, a substrate (such as the protective lens 110) is provided. In step S202, the sealant 121 is formed on the surface of the substrate (such as the back surface of the protective lens 110), wherein the sealant 121 can be coated on the substrate by using a sealant coater (not shown). In step S203, a water gel 122 is formed in the sealant 121 to form the bonding layer 120. At this time, the sealant 121 and the water gel 122 may not be cured, and the water gel 122 is applied in the sealant 121 in the form of a strip, as shown in FIG. 6, FIG. 6 is a diagram showing one of the present invention. A schematic of the bonding layer of the embodiment prior to pumping. In step S204, another substrate is bonded to the bonding layer 120 (such as the touch panel 130). In step S205, the bonding layer 120 between the two substrates (such as the protective lens 110 and the touch panel 130) is evacuated so that the water gel 122 can be uniformly diffused and filled in the frame under vacuum suction. Inside the glue 121. At this time, the substrate of the electronic device and the bonding layer 120 may be placed in a vacuum box for vacuum pumping. At this time, the bubbles in the water gel 122 can be discharged through the exhaust opening 123 of the sealant 121. In step S206, the bonding layer 120 between the substrates is cured. At this time, the bonding layer 120 between the substrates can be cured by a light curing method. This photocuring method can achieve a curing effect by, for example, visible light (wavelength of about 380 nm to 780 nm) or invisible light (such as ultraviolet light or infrared light).

Therefore, by using the exhaust opening 123 of the sealant 121, bubbles in the water gel 122 can be extracted from the bonding layer 120 to ensure the quality of the bonding layer 120 after curing, thereby improving the substrate assembly quality of the electronic device.

Referring to Figure 7, there is shown a schematic view of a bonding layer in accordance with a second embodiment of the present invention. Only the differences between the present embodiment and the first embodiment will be described below, and the similarities are not described herein again. Compared with the first embodiment, the electronic device of the second embodiment may include at least two substrates 310 and at least one bonding layer 320. The bonding layer 320 is formed between the substrates 310 for bonding and assembling the substrate 310. The bonding layer 320 may include a sealant 321 , a water gel 322 and at least one barrier strip 324 . The sealant 321 is used to surround the water gel 322 to ensure the coating range of the water gel 322 and avoid problems such as bleeding. The water gel 322 is formed in the sealant 321 for bonding the substrate 310. Wherein, the sealant 321 includes at least one exhaust opening 323 for allowing air bubbles in the water gel 322 to be discharged. The material of the barrier strip 324 may be the same as the sealant 321 , which is formed on the outer side of the exhaust opening 323 and is not connected to the sealant 321 to block the water gel 322 oozing from the exhaust opening 323 , wherein the barrier strip 324 The length is preferably larger than the opening width of the exhaust opening 323. Therefore, when vacuuming the bonding layer 120, the water gel 322 oozing out from the exhaust opening 323 can be blocked first at the barrier strip 324, preventing the diffusion range of the water gel 322 from being excessively enlarged, and ensuring the bonding layer 320. quality.

According to the embodiment of the present invention, the electronic device, the assembly method thereof and the touch display device of the present invention can use the exhaust opening of the sealant to discharge air bubbles in the water gel to improve the bubble problem and ensure the electronic device. The quality of the substrate assembly.

In view of the above, the present invention has been disclosed in the above preferred embodiments, and is not intended to limit the invention, and the present invention may be made without departing from the spirit and scope of the invention. Various modifications and refinements are made, and the scope of the present invention is defined by the scope of the appended claims.

100. . . Touch display device

110. . . Protective lens

120, 320. . . Bonding layer

121, 321. . . Frame glue

122, 322. . . water glue

123, 323. . . Exhaust opening

130. . . touchpad

140. . . Display panel

310. . . Substrate

324. . . Barrier strip

S201. . . Providing a substrate

S202. . . Forming a frame glue on the substrate

S203. . . Forming water glue in the sealant

S204. . . Bonding another substrate to the bonding layer

S205. . . Vacuum pumping the bonding layer

S206. . . Curing bonding layer

The above and other objects, features, advantages and embodiments of the present invention will become more apparent and understood.

1 is a schematic diagram of a touch display device according to a first embodiment of the present invention.

2 is a schematic view of a bonding layer in accordance with a first embodiment of the present invention.

3 is a schematic view of a bonding layer in accordance with an embodiment of the present invention.

4 is a schematic view of a bonding layer in accordance with another embodiment of the present invention.

FIG. 5 is a flow chart showing a method of assembling an electronic device according to a first embodiment of the present invention.

6 is a schematic view of a bonding layer prior to pumping in accordance with an embodiment of the present invention.

Figure 7 is a schematic illustration of a bonding layer in accordance with a second embodiment of the present invention.

110. . . Protective lens

120. . . Bonding layer

121. . . Frame glue

122. . . water glue

123. . . Exhaust opening

Claims (10)

An electronic device comprising at least two substrates; and at least one bonding layer formed between the substrates, wherein the bonding layer comprises: a sealant having at least one exhaust opening; and a water gel formed on the sealant Inside. The electronic device of claim 1, wherein the weight percent concentration of the sealant is greater than the weight percent concentration of the water gel. The electronic device of claim 1, wherein the sealant has a plurality of exhaust openings formed on opposite sides of the sealant. The electronic device of claim 1, wherein the sealant is rectangular and has four exhaust openings respectively formed at four corners of the sealant. The electronic device of claim 1, wherein the opening width of the exhaust opening is 2 mm or more and 2 cm or less. The electronic device of claim 1, wherein the bonding layer further comprises at least one barrier strip formed on an outer side of the exhaust opening for blocking the water gel oozing from the exhaust opening. A touch display device includes: a protective lens; a touch panel disposed on one side of the protective lens; a display panel disposed on a side of the touch panel; and at least one bonding layer formed on the protective lens And the touch panel, wherein the bonding layer comprises: a sealant having at least one exhaust opening; and a water gel formed in the sealant; The touch display device of claim 7, wherein the bonding layer is formed between the touch panel and the display panel. A method for assembling an electronic device, comprising the steps of: providing a substrate; forming a frame glue on the substrate, wherein the sealant has at least one exhaust opening; forming a water gel in the sealant to form a bonding layer Laminating another substrate on the bonding layer; vacuuming the bonding layer; and curing the bonding layer. The method of claim 9, further comprising the step of forming at least one barrier strip on an outer side of the exhaust opening for blocking the water gel oozing from the exhaust opening.