KR20030079212A - Apparatus for sensing the touch status human body - Google Patents

Abstract

PURPOSE: A human body touch sensor is provided to sense a human body touch by using a few touch sensing lines so that it can reduce the number of sensing circuits and the number of pins of ICs connected to the circuits. CONSTITUTION: The device comprises a body touch sensing block(100), a power supply block(200), and a signal processing IC(300). The body touch sensing block(100), for which the power supply block(200) selectively supplies power, senses a human body touch, and outputs the sensing result to an electronic device embedding the signal processing IC(300). The body touch sensing block(100) includes a body touch portion(120) and sensing circuits(110). The sensing circuits(110) generate body touch sensing signals according to a state of the body touch portion(120), and transmits the generated body touch sensing signals to the signal processing IC(300). Touch sensing lines(130) are arranged on the body touch portion(120) according to a preset pattern. The touch sensing lines(130) have an electrical one to one connection structure with the sensing circuits(110).

Description

Apparatus for sensing the touch status human body}

The present invention relates to a human body touch sensing device, and more particularly to a series of human body touch sensing mechanisms in the conventional "digital sensing mechanism by individual touch sensing points", "analog sensing by touch sensing lines" And by doing so, a normal human contact sensing process can be performed with only a few line-type touch sensing lines, thereby naturally reducing the number of sensing circuit portions and the individual pin count of the signal processing IC connected to the sensing circuit portions. It relates to a human body touch sensing device to induce.

Recently, with the rapid development of electronic / electrical technology, a series of human body touch sensing devices for detecting a contact situation of a part of the human body is also rapidly developing.

Traditionally, such a human body touch sensing device has been described, for example, in US Patent No. 4353056 "Capacitive fingerprint sensor", US Patent No. 5325442 "fingerprint recognition device and a predetermined active electrode. As described in "Fingerprint sensing device and recognition system having predetermined electrode activation" and the like, a series of semiconductor devices have been used.

However, since semiconductor devices have "disadvantages sensitive to the influence of impurities", "disadvantages to external physical shocks," and the like, in recent years, various body-contact detection apparatuses using self-sensing devices that are independent of semiconductor devices have been diversified. It is being developed and distributed.

As shown in FIG. 1, the self-sensing element type human body contact detecting apparatus according to the related art is largely formed of a combination of a body contact detecting block 10 and a power applying block 11. In this case, the power supply block 11 serves to selectively apply a series of necessary voltages required for driving the body contact detection block 10, the body contact detection block 10 senses whether the human body contacts ( Sensing), and outputs the result to the signal processing IC 12 built in any electronic device (not shown).

At this time, as shown in the figure, the human body contact detection block 10 is composed of a combination of the human body contact portion 2 and the sensing circuits (1), in this case, the human body contact portion 2, for example, in contact with the human body A plurality of touch sensing points 3 are disposed, and each of the sensing circuit units 1 has a series of human bodies with different circuit states depending on whether the individual touch sensing points 3 are in contact with the human body. A capacitor for outputting a touch sensing signal, an output element (for example, an inverter), and the like are disposed.

Such a configuration of the capacitor, the output device, and the like can be described in Korean Patent Application No. 1997-7152 "Fingerprint Detection Device" and Korean Patent Application No. 1997-36662 "Charge Redistribution Method." Sensing method ", Korean Patent Application No. 1998-38055" two-dimensional image sensing device using capacitor array structure ", Korean Patent Application No. 2001-79465" human contact strength sensing device and human body contact strength sensing method using the same " It is disclosed in more detail.

In the human body touch sensing apparatus according to the related art having the above-described configuration, as mentioned above, each sensing circuit unit 1 according to whether or not the individual touch sensing points 3, human body contact, the circuit state Alternatively, a series of human body contact intensity sensing signals are output to the signal processing IC 12 embedded in any electronic device. For this purpose, each sensing circuit unit 1 is connected to individual touch sensing points 3 and the like. The one-to-one correspondence forms a series of electrical connections, and the signal processing IC 12 also has one-to-one correspondence with the individual sensing circuit units 1 through its individual pins, thereby establishing a series of electrical connections. Will form.

In general, it is known that a certain level or more of resolution must be maintained in order for a human body touch sensing device to perform a normal function. In view of this, a width of a width of a sensing sensor to be detected in order to obtain sufficient information is approximately 2 cm. Under the assumption that the spacing between the points is approximately 1 mm, the human body sensing device according to the prior art must have a large number of touch sensing points 3 in excess of at least 400 to be able to perform its normal function.

This means that the human body sensing device according to the related art must have at least 400 sensing circuit parts 1 in order to perform a normal function. In addition, the signal processing IC 120 may also be referred to as “contact sensing. At least 400 individual pins proportional to the points 3 and the sensing circuit units 1 " mean that the information output from the human body touch sensing device can be processed normally.

That is, under the conventional technical system, the signal processing IC 12 associated with the human body touch sensing device inevitably has a large number of individual pins corresponding to " contact sensing points 3, sensing circuits 1 ". You have no choice but to keep it forcibly.

As such, when the signal processing IC 12 has no choice but to retain a large number of individual pins, the signal processing IC 12 has a problem in that the size of the package becomes excessively large, for example, a large number of pins in a small package area. It is inevitable to cause problems such as the introduction of special technology to accommodate the problem, excessive increase in cost, and the like. As a result, electronic devices employing the same have inevitably have disadvantages such as expensive manufacturing cost. do.

Accordingly, it is an object of the present invention to newly improve a plurality of touch sensing points with a few linear touch sensing lines, thereby improving the series of human touch sensing mechanisms in the conventional "digital sensing mechanism by individual touch sensing points". Analog sensing mechanism by touch sensing lines ", thereby reducing the number of sensing circuit parts and connecting with the sensing circuit parts by allowing a normal human touch sensing process to be performed with only a few linear touch sensing lines. This naturally leads to a reduction in the number of individual pins in the signal processing IC.

Another object of the present invention is to newly improve the plurality of touch sensing points disposed in the human body contact part with a few line type touch sensing lines, thereby naturally reducing the number of individual pins of the signal processing IC, and thereby, the corresponding signal processing IC For example, the problem is that the size of the package is not excessively large, a special technique of accommodating a large number of pins in a small package area is introduced, and the cost is not excessively induced.

Still other objects of the present invention will become more apparent from the following detailed description and the accompanying drawings.

1 is a conceptual view showing a human body sensing device according to the prior art conceptually.

Figure 2 is an illustration conceptually showing a human body contact detection apparatus according to an embodiment of the present invention.

Figure 3 is an exemplary view conceptually showing a human body contact state of the human body contact detection apparatus according to an embodiment of the present invention.

4 is an exemplary diagram conceptually illustrating a first human body contact state of touch sensing lines according to an embodiment of the present invention;

5 is an exemplary view conceptually illustrating a second human body contact state of the touch sensing lines according to an embodiment of the present invention.

6 is an exemplary view showing a detailed structure of touch sensing lines according to an embodiment of the present invention.

7 is an exemplary view conceptually showing a human body touch sensing apparatus according to another embodiment of the present invention.

8 is an exemplary view conceptually illustrating an electrical connection state of touch sensing lines arranged in a body touch sensing apparatus according to another exemplary embodiment of the present invention.

9 is an exemplary diagram conceptually illustrating a first human body contact state of touch sensing lines according to another exemplary embodiment of the present invention.

10 is an exemplary view conceptually illustrating a second human body contact state of touch sensing lines according to another exemplary embodiment of the present invention.

11 is an exemplary view conceptually showing an arrangement of position sensing points according to another embodiment of the present invention.

12 is an exemplary view conceptually showing a human body touch sensing apparatus according to another embodiment of the present invention.

FIG. 13 is an exemplary view conceptually illustrating an electrical connection state of touch sensing line segments arranged in a body touch sensing apparatus according to another embodiment of the present invention; FIG.

14 is an exemplary view conceptually showing a human body touch sensing apparatus according to another embodiment of the present invention.

In order to achieve the above object, in the present invention, a series of touch sensing lines arranged in accordance with a predetermined pattern and providing a touched part of the human body are electrically connected to the touch sensed lines one-to-one, Sensing circuit parts for outputting a series of human body contact detection signals to a signal processing IC built in an arbitrary electronic device according to the human body contact state of the corresponding touch sensing lines, and necessary for driving the sensing circuit parts. Disclosed is a human body contact sensing device including a combination of a power supply block selectively applying a series of required voltages.

In addition, according to the present invention, the touch sensing segments and the touch sensing segments which are arranged in accordance with a predetermined pattern to provide a contact portion of the human body, which are connected to each other to form an electrical unit, and the touch sensing segments are formed Sensing circuit parts connected one-to-one by electric unit and outputting a series of human contact detection signals to a signal processing IC built in an arbitrary electronic device by varying the circuit state according to the human contact state of the corresponding contact detection line segments. And a combination of a power supply block for selectively applying a series of necessary voltages required for driving the sensing circuit units.

Hereinafter, with reference to the accompanying drawings, it will be described in more detail the human body contact detection apparatus according to the present invention.

As illustrated in FIG. 2, the apparatus for detecting human body contact according to the present invention is largely made of a combination of the body contact detecting block 100 and the power applying block 200. In this case, the power supply block 200 serves to selectively apply a series of necessary voltages for driving the body contact detection block 100, the body contact detection block 100 senses whether the human body , And outputs the result to the signal processing IC 300 built in any electronic device.

At this time, the human body contact detection block 100 is made of a combination of the human body contact unit 120 and the sensing circuit unit 110, in this case, each sensing circuit unit 110 according to whether the human body contact portion 120 in contact with the human body For example, by varying the circuit state of its own components, such as a capacitor, an output element, and the like to generate a series of human body contact detection signal, and outputs the generated human body contact detection signal to the aforementioned signal processing IC (300) Play a role.

Here, as shown in the figure, the human body contact unit 120 is provided with the touch sensing lines 130 of the present invention, which are arranged according to a predetermined pattern, the touch sensing lines 130 are conventional In place of the role of the touch sensing point of the role, provides a contact portion of the human body and the human body contact detection block 100. In this case, each of the touch sensing lines 130 forms a structure in which the touch sensing lines 130 are electrically connected one to one.

In the human body touch sensing apparatus of the present invention having such a configuration, as shown in FIG. 3, when a human body, for example, a finger contacts the area PA of the human body contacting part 120, the touch sensing arranged in the area PA in which the human body is in contact with the human body. Unlike the area PB where the human body is not in contact with the lines 130, the lines 130 exhibit different contact resistances according to the degree of contact with the human body, for example, the contact area with the human body.

For example, as shown in FIG. 4, the touch detection line 130b contacting the human body by the length L2 from the starting point b to the contact boundary point P2 is in contact with the human body by the length of L1 from the starting point a to the contact boundary point P1. It shows a smaller resistance size than the sensing line 130a, and the contact sensing line 130c in contact with the human body by the length of L3 from the starting point C to the contact point P3 contacts the human body by the length of L2 from the starting point b to the contact boundary point P2. It shows a smaller resistance size than the contact detection line 130b.

In this state, the sensing circuit units 110 electrically connected to each of the touch sensing lines 130 may have analogs having different sizes depending on the resistance of the resistors transmitted from the touch sensing lines 130. The type human body contact detection signal is output to the aforementioned signal processing IC 300. As a result, as soon as this process is completed, an electronic device incorporating the corresponding signal processing IC 300 is placed in an arbitrary area of the human body contacting unit. It is easy to confirm that the human body of the shape surrounded by the contact boundary points P is in contact.

In this case, each of the touch sensing lines 130 of the present invention takes a series of analog sensing mechanisms indicating the difference in continuous contact resistance output values according to the contact area with the human body, as described above. Thus, the number can be greatly reduced compared to conventional touch sensing points that take a digital sensing mechanism.

This fact means that the human body sensing device of the present invention can perform a normal function even with only a few sensing circuit parts 110 corresponding to the respective touch sensing lines 130, and in addition, the signal processing IC 300 also means that it is possible to normally process the information output from the human body touch sensing device, while having a few individual pins corresponding to the "contact sensing lines, sensing circuit units".

That is, under the technical system of the present invention, unlike the conventional method, the signal processing IC 300 associated with the human body touch sensing device may naturally hold only a few individual pins.

As such, when the signal processing IC 300 can naturally hold only a small number of individual pins without any burden, the signal processing IC 300, for example, causes the package size to be excessively large, for example, a small package. It does not cause the problem of introducing a special technology that accommodates a large number of pins in the area, the problem of excessively increasing costs, and, ultimately, the electronic device employing the same does not exhibit the disadvantages of involving expensive manufacturing cost. do.

Subsequently, as shown in FIG. 5, when the human body that is in contact with the area PC of the human body contact part 120 moves to the area PD in the direction of the arrow, each touch sensing line 130 is changed according to the change in the contact position of the human body. In this state, the sensing circuit units 110 electrically connected to each of the touch sensing lines 130 may change the circuit state according to the resistance transmitted from the touch sensing lines 130. Alternatively, the analog-type human body contact detection signals of different sizes are output to the aforementioned signal processing IC 300, and as a result, as soon as this process is completed, the electronic device incorporating the corresponding signal processing IC 300 It can be easily confirmed that the "human body of the shape surrounded by the contact boundary points (P)" has been moved from any area of the human body contact part 120 to any other area along the direction of the arrow.

On the other hand, as shown in FIG. 2 mentioned above, when the human body contacts the human body contact portion 120, the "pure contact resistance component" between the human body contact portion 120 and the human body is "current along each organ of the human body to the ground Resistance in the course of flow ", i.e.," human resistance component "may have a much smaller value.

In this case, it is very difficult for the sensing circuit unit 110 to sense the "pure contact resistance component between the human contact portion and the human body" according to the contact area of the human body, and if no further action is taken, the present invention will be described above. You may not be able to acquire an effect normally.

In the present invention, in view of the occurrence of the above-described problem, as shown in Figure 6, each of the touch detection line 130, the contact line 131 for electrically detecting the contact state of the human body, and this contact line 131 It is disposed adjacent to, and constitutes a combination of the ground wire 132 to reduce the resistance of the human body.

In this state, when the human body contacts the contact wire 131 and the ground wire 132 at the same time, the human body resistance component is a conventional "resistance experienced in the process of the current flowing to the ground along each organ of the human body", "current The resistance R "experienced in the process of flowing along the surface of the skin is greatly reduced. As a result, the sensing circuit unit 110 can easily sense the" pure contact resistance component between the human body and the human body "according to the contact area of the human body without any difficulty. It becomes possible.

On the other hand, as shown in Figure 7, in the human body touch sensing apparatus according to another embodiment of the present invention, unlike the previous embodiment, the body contact portion 420, a plurality of unit cells (C) is arranged, this Each of the unit cells C is provided with contact sensing lines 430 arranged according to a predetermined pattern. In this case, the touch sensing lines 430 replace the role of the conventional touch sensing points, and provide a contact portion between the human body and the human body touch sensing block 400. Of course, when the present invention takes this configuration, the human body contact portion 420 can maintain a wider size than the human body contact portion 120 in the front.

In this case, as shown in FIG. 8, each of the touch sensing lines 430 arranged in each unit cell C is bundled with elements of the same position selected from different unit cells and electrically connected to the sensing circuit units 410. One to one connection.

For example, contact sensing lines 430a, 430b, 430c, 430d, 430e, and 430f in the same position selected from different unit cells C1, C2, C3 ... C6 are bundled into one and electrically connected to the sensing circuit unit 410. The touch sensing lines 430g, 430h, 430i, 430j, 430k, and 430l of the same position selected from different unit cells C1, C2, C3 ... C6 are bundled together and electrically connected to the sensing circuit unit 410 one-to-one.

When each touch sensing line of the present invention has such a configuration, the number of outputs of the sensing circuit unit 410 of each touch sensing line 430 is the sensing circuit unit 110 of each touch sensing line 130 according to the above embodiment. Since the number of outputs is equal to), the human body contact portion 420 needs to increase an unnecessary number of the sensing circuit units 410 while maintaining a wider size than the previous embodiment through the respective unit cells C. You will not.

In the human body contact detecting apparatus according to another embodiment of the present invention having such a configuration, as shown in FIG. 9, when the human body, for example, the finger contacts the region PE1 of the human body contacting portion 420, the human body is in contact with the region PE1. The contact detection lines 430 arranged in the display may show different contact resistances according to the contact area with the human body.

However, as mentioned above, each of the touch sensing lines 430 arranged in each of the unit cells C is connected to the sensing circuit units 410 and electrically connected to elements of the same position selected from different unit cells C. Since the contact sensing lines 430 arranged in the area PE1 of the human body contacting part 420 exhibit a series of contact resistances, the contact sensing lines 430 are arranged not only in the contact sensing lines 430 but also in other areas of the human body contacting part. The contact detection lines 430, for example, the contact detection lines 430 arranged in the area PE2, the area PE3, and the area PE4 also exhibit a series of repeated contact resistances.

This phenomenon may lead to the question whether the present invention can be carried out normally.

However, from the perspective of the electronic device incorporating the signal processing IC 300, the matter of interest is simply to confirm that the human body in the shape surrounded by the contact boundary points is in contact with any relative region of the human contact portion 420. Or "confirming that the human body in the shape surrounded by the contact boundary points has been moved from any region of the human body contact portion 420 to another arbitrary region along a specific direction", and so on. Although the contact sense lines 430 arranged in the area PE1 as well as the touch sense lines 430 arranged in other areas of the human body contact part 420 exhibit a series of repeated contact resistances, this configuration is a normal implementation of the present invention. Does not affect anything.

Subsequently, the sensing circuit units 410 electrically connected one-to-one with each touch sensing line 430 may have different sizes of analogue human bodies having different circuit states according to resistances transmitted from the touch sensing lines 430. The touch detection signal is output to the signal processing IC 300, and as a result, as soon as this process is completed, the electronic device incorporating the signal processing IC 300 is " contact boundary point " It is easy to confirm that the human body of the shape surrounded by the "is in contact.

Of course, even in the case of the above-described embodiment, as in the previous embodiment, each of the touch sensing lines 430 is a series of analogue types representing a continuous difference in the contact resistance output value according to the contact area with the human body, as described above Because of the sensing mechanism, the number can be greatly reduced compared to the conventional touch sensing points that take the digital sensing mechanism, depending on the presence or absence of contact with the human body.

Thereafter, as shown in FIG. 10, when the human body that is in contact with the area PE5 of the human body contact part 420 moves to the area PE6 in the direction of the arrow, each touch sensing line 430 is changed according to the change in the contact position of the human body. In this state, the sensing circuit units 410 electrically connected to each of the touch sensing lines may change their circuit states according to the resistance magnitudes transmitted from the touch sensing lines 430. Analog-type human body contact detection signals of different sizes are output to the aforementioned signal processing IC 300. As a result, as soon as this process is completed, an electronic device incorporating the corresponding signal processing IC 300 is " contact boundary point. It is easy to confirm that the human body of the shape surrounded by the "moved from any area of the human body contact part 420 to another arbitrary area along the direction of the arrow.

On the other hand, as mentioned above, the electronic device incorporating the signal processing IC 300 is merely to confirm that the human body of a shape surrounded by contact boundary points is in contact with any relative region of the human contact unit 420. If it is only interested in, "" confirming that the human body in the shape surrounded by the contact boundary point has been moved from one region of the human body contact portion 420 to another arbitrary region along a specific direction ", etc. The configuration as described has no effect on the normal practice of the invention.

However, an electronic device incorporating the signal processing IC 300 includes "confirming that the human body is in contact with a specific region of the human contact unit", "confirming that the human body has moved from a specific region to another specific region", and the like. In case of interest, the above-described configuration has a great adverse effect on the normal practice of the present invention.

In view of the above-described problems, the present invention provides position sensing points S1, S2, S3, S4, and S5 for sensing an absolute contact position of the human body to a part of each unit cell C, as shown in FIG. , S6 ...) are optionally further arranged.

In this case, as shown in the figure, not only the touch sensing lines 430 arranged in the area PE6 substantially in contact with the human body but also a series of contact resistances to the other sensing lines 430. ) Can easily remove the unnecessary repetitive contact resistance signal except for the contact resistance signal output from the touch sensing lines 430 arranged in PE6 through the use of the position sensing point S1. The electronic device having the built-in 300 can easily check that "the human body is in contact with a specific area PE6 of the human body contacting part 420", "the human body has been moved along the direction of the arrow from one specific area PE6 to another specific area PE7", and the like. Will be.

Of course, when the position sensing points S1, S2, S3, S4, S5, S6 ... are further arranged in a part of the unit cells C, the sensing circuit unit 410 may further include components dedicated to this. Since the details are extremely obvious to those skilled in the art, detailed description thereof will be omitted.

On the other hand, as shown in Figure 12, in the human body touch sensing apparatus according to another embodiment of the present invention, the body contact portion 520, the touch sensing line segments to replace the touch sensing lines 430 disclosed in the previous embodiment 530 is disposed, and the touch sensing line segments 530 have, for example, a structural feature of grouping adjacent elements together to form an electrical unit B.

That is, as shown in FIG. 13, for example, the contact sensing line segments 530a, 530b, 530c, and 530d which are adjacent to each other are grouped together to form an electrical unit B, and the contact sensing line segments 530e which are adjacent to each other. 530f, 530g, and 530h are also bundled together to form an electrical unit B, and contact sensing line segments 530i, 530j, 530k, and 530l which are adjacent to each other are also bundled together to form an electrical unit B.

In this state, each of the touch sensing line segments 530a, 530b, 530c, and 530d, the contact sensing line segments 530e, 530f, 530g, and 530h forming one electrical unit B, the touch sensing line segments 530i. 530j, 530k, and 530l are electrically connected to the sensing circuit unit 510 in a one-to-one manner.

As such, since the touch sensing line segments 530 according to another embodiment of the present invention form one electrical unit B between adjacent elements, the number of outputs of the sensing sensing circuit unit 510 is shown in FIG. 2. It provides the effect of maintaining the same value as the number of output of the sensing circuit unit 110 side of each of the contact detection lines 130, after all, when another embodiment of the present invention is implemented, the human body contact detection device While the sensing line segments 530 are divided into individual points as in the conventional touch sensing points, only a few sensing circuit units 510 can perform a normal function.

Of course, when another embodiment of the present invention is implemented, the signal processing IC 300 interworking with the human body touch sensing device also has only a few individual pins corresponding to the "sensing circuit units 510". The information output from the touch sensing device can be normally processed, and as a result, the signal processing IC 300 is, for example, like the previous embodiments, for example, an excessively large size of the package, It does not cause the problem that the special technology for accommodating the pins has to be introduced and the problem of excessively increasing costs.

On the other hand, in the human body touch detection apparatus according to another embodiment of the present invention having the above-described configuration, when the human body, for example, the finger is in contact with the area PF1 of the human body contacting portion 520, the human body is in contact The touch sensing line segments 530 arranged in the region PF1 exhibit different contact resistances, for example, according to the contact area with the human body.

In this state, the sensing circuit units 510 electrically connected one-to-one with each touch sensing line segment B may have different analog states of different sizes depending on the magnitude of the resistance transmitted from the unit B. The body contact detection signal is output to the aforementioned signal processing IC 300. As a result, as soon as this process is completed, an electronic device incorporating the corresponding signal processing IC 300 may be located in an arbitrary area of the body contact unit 520. It is easy to confirm that the "human body of a shape surrounded by contact boundary points" is in contact.

Subsequently, as shown in the drawing, when the human body that has been in contact with the area PF1 of the human body contact part 520 moves to the area PF2 in the direction of the arrow, each touch sensing line segment 530 is changed according to the change in the contact position of the human body. In this state, the sensing circuit units 510 electrically connected to each of the touch sensing line segment units B may have different circuit states according to the resistance magnitudes transmitted from the unit B. FIG. Thus, the analog-type human body contact detection signals of different sizes are output to the aforementioned signal processing IC 300. As a result, as soon as this process is completed, the electronic device incorporating the corresponding signal processing IC 300 is " It is easy to confirm that the human body of the shape surrounded by the contact boundary points is moved from any area of the human body contact part to another arbitrary area along the direction of the arrow.

On the other hand, as shown in Figure 14, in the human body contact detection apparatus according to another embodiment of the present invention, unlike the previous embodiment, the human body contact portion 620, a plurality of unit cells (C) is arranged, In each of the unit cells C, contact sensing line segments 630 are arranged such that adjacent elements are bundled together to form an electrical unit. In this case, the touch sensing line segments 630 replace the role of the conventional touch sensing points, and provide a contact portion between the human body and the human body touch sensing block 600. Of course, when the present invention takes this configuration, the human body contact portion 620 can maintain a wider size than the human body contact portion 520 in front.

In this case, each of the touch sensing line segments 630 arranged in the unit cells C may be electrically connected to the sensing circuit units 610 by tying together electrical units of the same position selected from different unit cells.

This is very similar to the "connection type of each unit cell of the touch sensing lines 430" mentioned in the previous embodiment, and a detailed description thereof will be omitted.

As such, when each of the touch sensing line segments 630 of the present invention takes a "structure in which electrical units of the same position selected from different unit cells are bundled into one and electrically connected to the sensing circuit units one-to-one," each touch sensing line segment unit Since the number of outputs of the sensing circuit unit 610 of the sensing circuit unit 610 is equal to the number of outputs of the sensing circuit unit 510 of each touch sensing line segment unit according to the previous embodiment, the human body contact unit 620 may select each unit cell (C). Through this, while maintaining a wider size than the embodiment disclosed in FIG. 13, the unnecessary number of sensing circuit units 610 is not required, and as a result, the signal processing IC 300 unnecessarily increases its individual pin count. It does not cause a problem.

As described in detail above, in the present invention, a plurality of touch sensing points are newly improved with a few line-type touch sensing lines, so that a series of human touch sensing mechanisms is known as the conventional "digital sensing mechanism by individual touch sensing points". Is changed to "analog sensing mechanism by touch sensing lines", thereby reducing the number of sensing circuit portions and the sensing circuit portions by allowing a normal human touch sensing process to be performed with only a few line-shaped touch sensing lines. It naturally induces a reduction in the number of individual pins of the signal processing IC connected to.

When the reduction of the number of individual pins of the signal processing IC is naturally induced by the implementation of the present invention, the signal processing IC has a problem that the size of the package is excessively large, for example, a special technology for accommodating a large number of pins in a small package area. It does not cause a problem that should be introduced, a problem that the cost is excessively increased, and, eventually, the electronic device employing the same does not exhibit a disadvantage such as involving expensive manufacturing cost.

The present invention has an overall useful effect in a variety of electronic devices, such as notebook computers, PDAs, mobile communication devices, electronic calculators, digital cameras, etc. that can be equipped with a human body touch sensing device.

And while certain embodiments of the invention have been described and illustrated, it will be apparent that the invention may be embodied in various modifications by those skilled in the art.

Such modified embodiments should not be understood individually from the technical spirit or point of view of the present invention and such modified embodiments should fall within the scope of the appended claims of the present invention.

Claims (8)

A series of touch sensing lines arranged according to a predetermined pattern to provide a contact portion of the human body; A one-to-one electrical connection with the touch sensing lines, and a circuit for changing a circuit state according to the human body contact state of the touch sensing lines, and outputting a series of human touch sensing signals to a signal processing IC built in any electronic device Circuit sections; And a power supply block for selectively applying a series of necessary voltages for driving the sensing circuit units. The apparatus of claim 1, wherein each of the touch sensing lines comprises: a contact line for electrically sensing a contact state of a human body; Is disposed adjacent to the contact line, the human body touch sensing device, characterized in that consisting of a combination of ground wire for reducing the resistance of the human body. A plurality of unit cells; A series of touch sensing lines arranged in each of the unit cells according to a predetermined pattern to provide a contact portion of the human body; A sensing circuit electrically connected to the touch sensing lines and outputting a series of human body sensing signals to a signal processing IC built in an arbitrary electronic device by varying the circuit state according to the contact state of the touch sensing lines. Budwa; And a power supply block for selectively applying a series of necessary voltages for driving the sensing circuit units. The apparatus of claim 3, wherein each of the touch sensing lines arranged in each of the unit cells is electrically connected to the sensing circuit units in one-to-one manner by tying together elements of the same position selected from different unit cells. . The apparatus of claim 3, wherein some of the unit cells further include position sensing points for sensing an absolute contact position of the human body. Touch sensing segments arranged according to a predetermined pattern to provide a contacting portion of the human body, the adjacent sensing elements being tied together to form an electrical unit; The signal processing IC is connected one-to-one to each electric unit formed by the touch sensing line segments, and changes a circuit state according to the human body contact state of the touch sensing line segments, and transmits a series of human body sensing signals to an electronic device. Sensing circuit parts to be outputted as; And a power supply block for selectively applying a series of necessary voltages for driving the sensing circuit units. A plurality of unit cells; Contact sensing line segments arranged according to a predetermined pattern in each of the unit cells to provide a contact portion of the human body, and adjacent elements are bundled into one to form an electrical unit; It is electrically connected to the touch sensing line segments, and outputs a series of human body sensing signals to a signal processing IC built in any electronic device by varying the circuit state according to the human body contact state of the touch sensing line segments. Sensing circuitry; And a power supply block for selectively applying a series of necessary voltages for driving the sensing circuit units. The human body contact of claim 7, wherein each of the touch sensing line segments arranged in each of the unit cells is electrically connected one-to-one with the sensing circuit units by tying together electrical units of the same position selected from different unit cells. Sensing device.