TWI528244B - Electronic device - Google Patents

Description

Electronic device

The present invention relates to an electronic device, and more particularly to an electronic device having a touch panel.

Generally, a portable electronic device (for example, a smart phone or a tablet) can be configured to sense the surface of the electronic device or the light source of the external distance by setting an optical sensor, and corresponding operations are generated according to changes in the light source ( For example: the switch displays the screen). However, since the optical sensor is susceptible to environmental influences, the use of the optical sensor as a control method for starting an operation is not very efficient.

Therefore, the present invention discloses an electronic device that utilizes an electromagnetic induction line as a control method for starting an operation, and integrates an electromagnetic induction line and a touch sensing line on a transparent substrate.

One aspect of the present disclosure is directed to an electronic device. The electronic device includes a touch panel. The touch panel includes a transparent substrate, a touch sensing circuit, and an electromagnetic induction circuit. The touch sensing circuit and the electromagnetic induction circuit are integrated on the transparent substrate. The electromagnetic induction circuit generates a feeling based on the external magnetic field change Signal number. The electronic device activates one of the corresponding operations according to the sensing signal.

According to an embodiment of the invention, the electromagnetic induction line and the touch sensing line are formed through the same process.

According to an embodiment of the invention, the electromagnetic induction circuit comprises a closed loop.

According to an embodiment of the invention, the closed loop is a square loop circuit or a circular loop circuit.

According to an embodiment of the invention, the area of the electromagnetic induction circuit is located in a non-display area of the touch panel.

According to an embodiment of the invention, the touch panel further includes a first conductive layer formed on the transparent substrate. The electromagnetic induction circuit and the touch sensing line are formed in the first conductive layer through a photolithography process.

According to an embodiment of the invention, the touch panel further includes a second conductive layer and an insulating layer. An insulating layer is formed between the first conductive layer and the second conductive layer. The electromagnetic induction circuit includes a first closed loop and a second closed loop formed in the first conductive layer and the second conductive layer, respectively.

According to an embodiment of the invention, the insulating layer forms a via between the position of the center point of the first closed loop and the position of the center point of the corresponding second closed loop. The first closed loop is connected to the second closed loop through a via.

According to an embodiment of the invention, the output signal pin of the touch sensing line and the output signal pin of the electromagnetic induction line are connected to the same signal line.

According to an embodiment of the invention, an output signal pin of the touch sensing line and an output signal pin of the electromagnetic induction line are respectively connected to respective signal lines.

In summary, by forming the touch sensing line and the electromagnetic sensing line on the same conductive layer by the same process (that is, the same mask), the electronic device having the touch panel can be omitted. Additional electromagnetic induction lines are added to reduce manufacturing costs.

100‧‧‧Electronic devices

110‧‧‧Touch panel

111‧‧‧Electromagnetic induction circuit

120‧‧‧Magnetic components

130‧‧‧ protective cover

200‧‧‧ touch panel

210‧‧‧Transparent substrate

220‧‧‧Touch sensing circuit

230‧‧‧Electromagnetic induction lines

230A‧‧Electrical induction circuit

230B‧‧‧Electromagnetic induction circuit

240‧‧‧ Conductive layer

400‧‧‧ touch panel

410‧‧‧Transparent substrate

420‧‧‧Black matrix layer

430‧‧‧First conductive layer

440‧‧‧Second conductive layer

450‧‧‧Insulation

460‧‧‧Touch sensing line

470‧‧‧Electromagnetic induction circuit

471‧‧‧ first closed loop

472‧‧‧Second closed loop

480‧‧‧through hole

610‧‧‧Touch sensing circuit

611‧‧‧Output signal pin

620‧‧‧Electromagnetic induction circuit

621‧‧‧Output signal pin

630‧‧‧Transparent substrate

640‧‧‧ signal cable

640A‧‧‧ signal cable

640B‧‧‧ signal cable

650‧‧‧Control circuit

650A‧‧‧Control circuit

650B‧‧‧Control circuit

A1‧‧‧visible area

A2‧‧‧ non-display area

The above and other objects, features, advantages and embodiments of the present invention will become more apparent and understood. FIG. 1B is a schematic diagram of an electronic device according to an embodiment of the invention; FIG. 2B is a schematic cross-sectional view of a touch panel according to an embodiment of the invention; FIG. 3A is a schematic diagram of a touch panel according to an embodiment of the invention FIG. 3B is a schematic diagram of an electromagnetic induction circuit according to another embodiment of the present invention; FIG. 4 is a schematic view of a touch panel according to another embodiment of the invention; FIG. 5 is a schematic view of the touch panel according to FIG. 3 of the present invention; FIG. 6A is a schematic diagram showing a relationship between a touch sensing circuit and an electromagnetic induction line according to an embodiment of the invention; and FIG. 6B is a view of another embodiment of the present invention. Schematic diagram of the relationship between a touch sensing line and an electromagnetic sensing line.

The embodiments are described in detail below with reference to the accompanying drawings, but the embodiments are not intended to limit the scope of the invention, and the description of structural operations is not intended to limit the order of execution thereof The structure, which produces equal devices, is within the scope of the present invention. In addition, the drawings are for illustrative purposes only and are not drawn to the original dimensions. For ease of understanding, the same elements in the following description will be denoted by the same reference numerals.

The terms "first", "second", etc., as used herein, are not intended to refer to the order or the order, and are not intended to limit the invention, only to distinguish the elements described in the same technical terms. Or just operate.

In addition, as used herein, "coupled" or "connected" may mean that two or more elements are in direct physical or electrical contact with each other, or indirectly in physical or electrical contact with each other, and "coupled" It can also mean that two or more elements operate or act on each other.

FIG. 1A is a block diagram of an electronic device 100 according to an embodiment of the invention. The electronic device 100 includes a touch panel 110. The touch panel 110 includes an electromagnetic induction line 111. Electromagnetic induction line 111 is used according to An external magnetic field change (eg, the magnetic element 120 is close to the electronic device 100) generates an inductive signal (eg, an induced current). The electronic device 100 can initiate a corresponding operation according to the sensing signal. For example, when the flow of the induced current generated by the electromagnetic induction line 111 is clockwise, the electronic device 100 can turn on the display screen of the touch panel 110 according to the induced current (not shown in the figure); when the electromagnetic induction line 111 generates the sensing When the current flow direction is counterclockwise, the electronic device 100 turns off the display screen of the touch panel 110 according to the induced current.

For example, please refer to FIG. 1B. FIG. 1B is a schematic diagram of an electronic device 100 according to an embodiment of the invention. As shown in FIG. 1B, the electronic device 100 may be a mobile communication device (eg, a mobile phone, a tablet, etc.). In addition, a protective cover 130 may be disposed outside the electronic device 100, wherein the magnetic component 120 is disposed on the protective cover 130. When the protective cover 130 is clicked, the position of the magnetic element 120 may correspond to the position of the electromagnetic induction line (not shown) in the electronic device 100. Thereby, when the protective cover 130 is opened or opened, the electronic device 100 can be operated by the magnetic component 120 to approach or away from the electromagnetic induction circuit (for example, the display screen is turned off or on).

FIG. 2 is a cross-sectional view of a touch panel 200 according to an embodiment of the invention. The touch panel 200 can be applied to the electronic device 100 as in FIGS. 1A and 1B. The touch panel 200 includes a transparent substrate 210, a touch sensing line 220, and an electromagnetic induction line 230. The touch sensing line 220 and the electromagnetic induction line 230 are integrally formed on the transparent substrate 210. The touch sensing circuit 220 can generate a touch signal according to a touch of an external object (for example, a finger or a stylus). The electromagnetic induction circuit 230 can be based on external magnetic The field change produces an inductive signal (eg, induced current). Thereby, the user can cause the electronic device 100 to generate corresponding operations through the touch sensing line 220 and the electromagnetic induction line 230.

In the embodiment, the touch panel 200 includes a conductive layer 240. The conductive layer 240 is formed on the transparent substrate 210. The conductive layer 240 can form the touch sensing line 220 and the electromagnetic induction line 230 through a photolithography process. In an embodiment, the conductive layer 240 may be composed of Indium Tin Oxide (ITO). Indium tin oxide has both low resistivity and high light transmittance, and is therefore suitable for use as a material for a conductive electrode of a panel.

In this embodiment, the touch sensing circuit 220 and the electromagnetic induction line 230 can be formed on the same conductive layer 240 by the same process (for example, a photolithographic imaging process). In other words, the touch sensing circuit 220 and the electromagnetic induction circuit 230 can be integrated through the same process. In this way, the electronic device using the touch panel 200 does not need to additionally add an electromagnetic induction circuit manufacturing process, thereby reducing the manufacturing cost.

In an embodiment, the electromagnetic induction line 230 includes a closed loop. Please refer to Figures 3A and 3B together. FIG. 3A is a schematic diagram of an electromagnetic induction line 230A according to an embodiment of the invention. FIG. 3B is a schematic diagram of an electromagnetic induction line 230B according to another embodiment of the invention. As shown in FIG. 3A, the closed loop included in the electromagnetic induction line 230A may be a square loop circuit. In another embodiment, as shown in FIG. 3B, the closed loop included in the electromagnetic induction line 230B may be a circular swing circuit, but the invention is not limited thereto. In addition, the electromagnetic induction line 230 The intensity of the induced signal (eg, induced current) that is generated is positively related to the number of turns of the closed loop. In other words, the user can appropriately design the number of turns of the closed circuit to control the intensity of the sensing signal, thereby avoiding the sensing of the external magnetic component or avoiding the interference caused by the sensing signal being too strong.

In an embodiment, the area where the electromagnetic induction line 230 is disposed may be located in a non-display area of the touch panel 200. Specifically, the touch panel 200 may include a black matrix layer (not shown in the figure). The black matrix layer may be formed on the surface of the transparent substrate 210 to block the peripheral traces of the touch sensing line 220. The two ends of the peripheral trace are respectively connected with a control circuit (not shown) and a touch sensing circuit 220 for the touch electrode disposed in the visible area. In other words, the area where the electromagnetic induction line 230 is disposed may be located in the area where the black matrix layer is disposed, but the invention is not limited thereto; in other words, those skilled in the art may select whether the area of the electromagnetic induction line is located or not according to actual needs. Non-display area of the control panel.

Please refer to FIG. 4 , which is a cross-sectional view of a touch panel 400 according to another embodiment of the invention. Similarly, the touch panel 400 can be applied to the electronic device 100 as in FIGS. 1A and 1B. The touch panel 400 includes a transparent substrate 410, a black matrix layer 420, a first conductive layer 430, a second conductive layer 440, an insulating layer 450, a touch sensing line 460, and an electromagnetic induction line 470. In the embodiment, the touch panel 400 includes a visible area A1 and a non-display area A2. The black matrix layer 420 is formed on the surface of the transparent substrate 410 and the black matrix layer 420 is disposed in the non-display area A2 of the touch panel 400.

The first conductive layer 430 is formed on the black matrix layer 420. In this reality In the embodiment, the touch panel 400 further includes a second conductive layer 440 formed on the first conductive layer 430 and including an insulating layer 450 in the middle. The insulating layer 450 is used to electrically isolate the first conductive layer 430 and the second conductive layer 440. The electromagnetic induction line 470 includes a first closed loop 471 and a second closed loop 472 formed on the first conductive layer 430 and the second conductive layer 440, respectively. Specifically, the first closed loop 471 and the touch sensing line 460 of the electromagnetic induction line 470 can be integrally formed on the first conductive layer 430 through the same process. The second closed loop 472 of the electromagnetic induction line 470 is formed on the second conductive layer 440 through another process.

In addition, in this embodiment, the area where the electromagnetic induction line 470 is disposed may be located in the area where the black matrix layer 420 is disposed; in other words, the electromagnetic induction line 470 is disposed in the non-display area A2 of the touch panel 400, but the disclosure is not This is limited to this.

Referring to FIG. 5, FIG. 5 is a schematic diagram of an electromagnetic induction circuit 470 according to the touch panel 400 in FIG. 4 of the present invention. In the present embodiment, the first closed loop 471 and the second closed loop 472 are all circular convoluted loops, but the disclosure is not limited thereto. As shown in FIG. 5, the direction of the whirling of the first closed circuit 471 is different from the direction of the whirling of the second closed circuit 472. In the present embodiment, the direction of the first closed circuit 471 is clockwise (viewed from the center point), and the direction of the second closed circuit 472 is counterclockwise (from the center point), but the disclosure is not This is limited to this. The position of the center point of the first closed loop 471 is connected to the position of the center point of the second closed loop 472. In other words, the electromagnetic induction circuit 470 can receive an external magnetic field change through the first closed circuit 471 to generate an inductive signal. And output an inductive signal through the second closed loop 472.

Specifically, as shown in FIG. 4, the insulating layer 440 forms a via 480 between the position of the center point of the corresponding first closed loop 471 and the position of the center point of the corresponding second closed loop 472, and thus, the first closed Loop 471 can be coupled to second closed loop 472 through via 480. Thereby, the intensity of the induced signal generated by the electromagnetic induction line 470 can be increased.

Please refer to Figures 6A and 6B. FIG. 6A is a schematic diagram showing the relationship between a touch sensing circuit 610 and an electromagnetic induction line 620 according to an embodiment of the invention. FIG. 6B is a schematic diagram showing the relationship between a touch sensing circuit 610 and an electromagnetic induction line 620 according to another embodiment of the invention. As shown in FIGS. 6A and 6B, the touch sensing line 610 and the electromagnetic induction line 620 are formed on the same conductive layer (not shown in the figure) through the same process (that is, the same mask), and It is disposed on the transparent substrate 630. The touch sensing line 610 and the electromagnetic sensing line 620 respectively include respective output signal pins 611 and 621.

In FIG. 6A, the output signal pin 611 of the touch sensing line 610 and the output signal pin 621 of the electromagnetic induction line 620 can be connected to the same signal line 640, and the same control circuit 650 is connected through the signal line 640. . The sensing signal generated by the touch sensing circuit 610 or the electromagnetic sensing circuit 620 can be transmitted to the same control circuit 650 through the signal cable 640, and the same control circuit 650 can be used according to the touch signal and the sensing signal. Produce the corresponding operation. Thereby, the cost of circuit fabrication can be saved.

In addition, in FIG. 6B, the output of the touch sensing line 610 is The output pin 621 of the pin 611 and the electromagnetic induction line 620 can also be connected to the respective signal wires 640A and 640B, and connected to the respective control circuits 650A and 650B through the signal wires 640A and 640B, respectively.

According to the embodiment of the invention, the touch sensing circuit and the electromagnetic induction circuit are integrally formed on the same conductive layer by the same process (that is, the same mask), so that the touch panel of the present invention can be The electronic device itself does not need to additionally increase the manufacturing process of the electromagnetic induction circuit, so that the manufacturing cost can be reduced.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention, and the present invention can be modified and modified without departing from the spirit and scope of the present invention. The scope is subject to the definition of the scope of the patent application attached.

100‧‧‧Electronic devices

110‧‧‧Touch panel

111‧‧‧Electromagnetic induction circuit

120‧‧‧Magnetic components

Claims (10)

An electronic device includes: a touch panel, the touch panel includes a transparent substrate, a touch sensing circuit, and an electromagnetic induction circuit, and the electromagnetic sensing circuit is integrated with the touch sensing circuit on the same side of the transparent substrate The electromagnetic induction circuit is configured to generate an inductive signal according to a magnetic field change of the external one, so that the electronic device starts a corresponding operation according to the sensing signal. The electronic device of claim 1, wherein the electromagnetic induction line and the touch sensing line are formed through the same process. The electronic device of claim 1, wherein the electromagnetic induction circuit comprises a closed loop. The electronic device of claim 3, wherein the closed loop is a square loop circuit or a circular loop circuit. The electronic device of claim 1, wherein the electromagnetic induction circuit is disposed in one of the non-display areas of the touch panel. The electronic device of claim 1, wherein the touch panel further comprises: a first conductive layer formed on the transparent substrate, wherein the electromagnetic sense The line and the touch sensing line are formed in the first conductive layer through a photolithography process. The electronic device of claim 6, wherein the touch panel further comprises: a second conductive layer; and an insulating layer formed between the first conductive layer and the second conductive layer; wherein the electromagnetic induction line A first closed loop and a second closed loop are formed in the first conductive layer and the second conductive layer, respectively. The electronic device of claim 7, wherein the insulating layer forms a via between a position corresponding to a center point of the first closed loop and a position corresponding to a center point of the second closed loop, the first closed loop The second closed loop is connected through the via. The electronic device of claim 1, wherein an output signal pin of the touch sensing line and an output signal pin of the electromagnetic induction line are connected to the same signal line. The electronic device of claim 1, wherein an output signal pin of the touch sensing line and an output signal pin of the electromagnetic induction line are respectively connected to respective signal lines.