KR20100048526A - Touch input device - Google Patents

Abstract

PURPOSE: A touch input device is provided to prevent short-circuit between a connection member and a connection terminal by connecting an electrode and a connection wire by a connection member and connecting the connection wire to an input signal processing device. CONSTITUTION: Electrodes are arranged on a 1st or 2nd substrate, and a connection terminal(160) is electrically connected to the electrodes. The connection terminal is placed between the 1st and 2nd substrates, and a connection member(500) has elasticity and is inserted between the 1st and 2nd substrates. The connection member is connected to the connection terminal, and a connection wire(600) is electrically connected to the connection member.

Description

Touch input device {TOUCH INPUT DEVICE}

An embodiment relates to a touch input device.

As information processing technology develops, devices capable of inputting signals by external touch or the like are widely used.

In particular, a touch screen device in which a touched position is input to a screen on which an image is displayed is widely used.

Embodiments provide a touch input device in which short circuit is reduced, reliability is improved, and can be easily manufactured.

The touch input device according to the embodiment includes a first substrate and a second substrate facing each other; An electrode disposed on the first substrate or the second substrate; A connection terminal electrically connected to the electrode and disposed between the first substrate and the second substrate; A connection member having elasticity and inserted between the first substrate and the second substrate and connected to the connection terminal; And a connection wiring electrically connected to the connection member.

The touch input device according to the embodiment may be connected to an electrode and a connection wiring by an elastic member, and the connection wiring may be connected to a device for processing an input signal.

Since the connecting member has elasticity, a short circuit can be prevented between the connecting member and the connecting terminal.

Accordingly, the touch input device according to the embodiment can prevent a short circuit between the connection member and the connection terminal by heat and / or pressure and improve the reliability.

In addition, the connection member is inserted between the first substrate and the second substrate and connected to the connection terminal, thereby connecting the electrode and the connection wiring without further processing.

Therefore, the touch input device according to the embodiment can be easily manufactured.

In the description of the embodiments, each panel, member, wiring, film, substrate, or electrode is formed on or under the "on" of each panel, member, wiring, film, substrate, or electrode. In the case of what is described as being intended, "on" and "under" include both "directly" or "indirectly" formed. In addition, the upper or lower reference of each component is described with reference to the drawings. The size of each component in the drawings may be exaggerated for the sake of explanation and does not mean the size actually applied.

1 is an exploded perspective view illustrating a touch panel according to an embodiment. 2 is a plan view illustrating an upper surface of a lower substrate. 3 is a plan view illustrating a rear surface of an upper substrate. 4 is a side view illustrating a touch panel according to an embodiment. 5 is a perspective view illustrating the connection wiring and the connection member. 6 is a cross-sectional view illustrating a cross section of the touch panel according to the embodiment.

1 to 6, the touch panel according to the embodiment includes a lower substrate 100, an upper substrate 200, a spacer 300, an adhesive member 400, a connection member 500, and a connection wiring 600. It includes.

2 and 6, the lower substrate 100 is rigid. The lower substrate 100 has a plate shape. The lower substrate 100 may include a glass substrate 110, a first electrode 120, a second electrode 130, a lower resistance layer 140, lower wirings 151 and 152, and a first connection terminal 160. And a second connection terminal 170.

The glass substrate 110 is transparent and has a plate shape. The glass substrate 110 is rigid.

Alternatively, the lower substrate 100 may include a flexible film substrate 210 instead of the glass substrate 110, and in this case, the lower substrate 100 may be flexible.

The first electrode 120 and the second electrode 130 are spaced apart from each other, and are arranged side by side on the glass substrate 110. The first electrode 120 and the second electrode 130 face each other and are parallel to each other. In addition, the first electrode 120 and the second electrode 130 extend in the Y-axis direction.

The first electrode 120 and the second electrode 130 have a low resistance. That is, the first electrode 120 and the second electrode 130 have a very low resistance compared to the lower resistance layer 140. Examples of the material used for the first electrode 120 and the second electrode 130 include silver, aluminum, copper, alloys thereof, and the like.

The lower resistance layer 140 is formed between the first electrode 120 and the second electrode 130. The lower resistance layer 140 is formed on the glass substrate 110 and covers most of the glass substrate 110.

In addition, the lower resistance layer 140 is in contact with the first electrode 120 and the second electrode 130. The lower resistance layer 140 is a conductive layer and is transparent. Examples of the material used as the lower resistance layer 140 may include indium tin oxide (ITO) or indium zinc oxide (IZO).

The lower resistance layer 140 has a higher resistance than the first electrode 120 and the second electrode 130. The lower resistance layer 140 is electrically connected to the first electrode 120 and the second electrode 130.

The lower interconnections 151 and 152 are respectively connected to the first electrode 120 and the second electrode 130. The lower interconnections 151 and 152 are connected to the first connection terminal 160 and the second connection terminal 170. That is, the lower interconnections 151 and 152 connect the first connection terminal 160 and the first electrode 120, respectively, and connect the second connection terminal 170 and the second electrode 130. Connect.

In addition, the lower substrate 100 may include a first insulating layer 180 covering the first electrode 120, the second electrode 130, and the lower wirings 151 and 152. The first insulating layer 180 prevents the first electrode 120, the second electrode 130, and the lower wirings 151 and 152 from shorting with the upper substrate 200.

3 and 6, the upper substrate 200 may include a film substrate 210, a third electrode 220, a fourth electrode 230, an upper resistive film 240, and upper wirings 251 and 252. ), A third connection terminal 260 and a fourth connection terminal 270.

The film substrate 210 faces the lower substrate 100 and has a plate shape. The film substrate 210 is transparent, and examples of the material used as the film substrate 210 include polyethylene terephthalate (PET) resin.

The film substrate 210 is flexible. Therefore, the film substrate 210 can be easily deformed by a touch or the like.

The third electrode 220 and the fourth electrode 230 are spaced apart from each other on the rear surface of the film substrate 210 and disposed in parallel with each other. The third electrode 220 and the fourth electrode 230 extend in the X-axis direction.

The resistances of the third electrode 220 and the fourth electrode 230 are much lower than the resistance of the upper resistance film 240.

The upper resistance layer 240 is disposed on the rear surface of the film substrate 210 and covers most of the rear surface of the film substrate 210.

The upper resistive film 240 is transparent and is a conductor. Examples of the material used as the upper resistance film 240 is the same as the material used as the lower resistance film 140.

The upper resistance layer 240 is disposed between the third electrode 220 and the fourth electrode 230 and is in contact with the third electrode 220 and the fourth electrode 230.

The upper resistance layer 240 has a higher resistance than the third electrode 220 and the fourth electrode 230.

The upper interconnections 251 and 252 connect the third electrode 220 and the fourth electrode 230 to the third connection terminal 260 and the fourth connection terminal 270, respectively.

The third connection terminal 260 is electrically connected to the third electrode 220 and is formed on the rear surface of the film substrate 210.

The fourth connection terminal 270 is connected to the fourth electrode 230 and is formed on the rear surface of the film substrate 210.

The third electrode 220, the fourth electrode 230, the upper interconnections 251 and 252, the third connection terminal 260 and the fourth connection terminal 270 are integrally formed. In addition, the third electrode 220, the fourth electrode 230, the upper wirings 251 and 252, the third connection terminal 260 and the fourth connection terminal 270 may be formed of a material. As an example, silver, aluminum, copper, these alloys, etc. are mentioned.

In addition, the upper substrate 200 may include a second insulating layer 280 covering the third electrode 220, the fourth electrode 230, and the upper wirings 251 and 252. The second insulating layer 280 prevents the third electrode 220, the fourth electrode 230, and the upper interconnections 251 and 252 from shorting with the upper substrate 200.

The spacer 300 is interposed between the lower substrate 100 and the upper substrate 200. The spacer 300 maintains a cell gap between the lower substrate 100 and the upper substrate 200.

The adhesive member 400 is interposed between the lower substrate 100 and the upper substrate 200. The adhesive member 400 is adhered to the lower substrate 100 and the upper substrate 200.

The adhesive member 400 is disposed at outer portions of the lower substrate 100 and the upper substrate 200. The adhesive member 400 has a shape in which a part is cut to form the insertion part 401.

That is, the insertion part 401 is a space between the upper substrate 200 and the lower substrate 100 on which the adhesive member 400 is opened.

The first connecting terminal 160, the second connecting terminal 170, the third connecting terminal 260, and the fourth connecting terminal 270 are disposed in the insertion unit 401.

4 to 6, the connection member 500 is inserted into the insertion part 401. That is, the connection member 500 is inserted between the upper substrate 200 and the lower substrate 100.

The connection member 500 is in contact with the first to fourth connection terminals 160, 170, 260, and 270. The connection member 500 extends from the connection wiring 600 and is electrically connected to the connection wiring 600.

Accordingly, the connection member 500 electrically connects the first to fourth connection terminals 160, 170, 260, and 270 to the connection wiring 600, respectively.

The connection member 500 is elastic and is inserted into the insertion portion 401 in a bent state. Therefore, since the connection member 500 is in contact with the first to fourth connection terminals 160, 170, 260, and 270 by elasticity, the connection member 500 may be affected by heat and / or pressure. And a short circuit do not occur between the first and fourth connection terminals 160, 170, 260, and 270.

That is, the connection member 500 is firmly connected to the first to fourth connection terminals 160, 170, 260, and 270 by elasticity to be extended.

The connection member 500 includes a conductive portion 510 which is a conductor and an elastic portion 520 having elasticity. In this case, the conductive portion 510 and the elastic portion 520 forms a layer. That is, the connection member 500 includes a conductive layer that is a conductor and an elastic layer that is an elastic body.

The material used as the conductive part 510 may be copper, and examples of the material used as the elastic part 520 may include a polyimide resin.

In addition, when the connection member 500 is bent, the conductive portion 510 is disposed outside, and the elastic portion 520 is disposed inside. That is, the conductive portion 510 is in contact with the first to fourth connection terminals 160, 170, 260, and 270.

In addition, the touch panel according to the embodiment may be attached to the connection member 500 and may include a support 501 for supporting the connection member 500.

The connection wiring 600 is connected to the connection member 500. The connection wiring 600 may be, for example, a flexible printed circuit board (FPCB) or a flexible flat cable (FFC). The connection wire 600 may be electrically connected to an IC for processing a touch signal.

The connection wiring 600 includes a wiring layer 640 including a conductor and coating layers 620 to protect the wiring layer.

In the touch panel according to the embodiment, the first to fourth electrodes 230 and the connection wiring 600 are connected by the connection member 500, and the connection wiring 600 is connected to the IC. .

Accordingly, the touch panel according to the embodiment may prevent a short circuit between the connection member 500 and the connection terminals 160, 170, 260, and 270 by heat and / or pressure, thereby improving reliability. .

In addition, the connection member 500 is inserted into the insertion part 401 and is connected to the first to fourth connection terminals 160, 170, 260, and 270, and thus, the first to fourth parts without additional processes. The electrodes 230 and the connection wiring 600 are connected to each other.

Therefore, the touch panel according to the embodiment can be easily manufactured.

Although described above with reference to the embodiment is only an example and is not intended to limit the invention, those of ordinary skill in the art to which the present invention does not exemplify the above within the scope not departing from the essential characteristics of this embodiment It will be appreciated that many variations and applications are possible. For example, each component specifically shown in the embodiment can be modified. And differences relating to such modifications and applications will have to be construed as being included in the scope of the invention defined in the appended claims.

1 is an exploded perspective view illustrating a touch panel according to an embodiment.

2 is a plan view illustrating an upper surface of a lower substrate.

3 is a plan view illustrating a rear surface of an upper substrate.

4 is a side view illustrating a touch panel according to an embodiment.

5 is a perspective view illustrating the connection wiring and the connection member.

6 is a cross-sectional view illustrating a cross section of the touch panel according to the embodiment.

Claims (7)

A first substrate and a second substrate facing each other; An electrode disposed on the first substrate or the second substrate; A connection terminal electrically connected to the electrode and disposed between the first substrate and the second substrate; A connection member having elasticity and inserted between the first substrate and the second substrate and connected to the connection terminal; And Touch input device comprising a connection wiring electrically connected to the connection member. The semiconductor device of claim 1, further comprising: a first resistive film formed on the first substrate; A second resistive film formed on the second substrate; And A spacer interposed between the first substrate and the second substrate, The electrode, A first electrode and a second electrode connected to the first resistive film and arranged in parallel with each other; And And a third electrode and a fourth electrode connected to the second resistive film and arranged in parallel with each other. 3. The display device of claim 2, further comprising: first and second connection terminals electrically connected to the first electrode and the second electrode, respectively, formed on the first substrate; And And a third connection terminal and a fourth connection terminal electrically connected to the third electrode and the fourth electrode, respectively, and formed on the second substrate. The touch input device of claim 1, wherein the connection member is bent. The method of claim 1, wherein the connecting member A conductive part, the conductive part being in contact with the connection member; And A touch input device covering the conductive portion and including an elastic portion having elasticity. The touch input device of claim 5, wherein the connection member is bent such that the elastic portion is disposed inward. The method of claim 1, wherein the connecting member A first layer comprising a metal; And Touch input device comprising a second layer made of plastic.

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