KR100998724B1 - Key unit and sensing unit for a touch sensor - Google Patents

Abstract

The present invention relates to a key unit and a sensing unit for a touch sensor, and according to the present invention, the key pattern is further contacted and arranged to provide an electrical uniformity to the edge of the key pattern. To significantly reduce the potential difference (or resistance difference) for each touch position>, and <contact and arrange a highly conductive metal line for providing electrical uniformity to the edge of the sensing pattern, and then touch the corresponding sensing pattern for each touch position. By applying and implementing measures to significantly reduce the potential difference (or resistance difference), etc., the user's touch operation can be performed without any problems while maintaining the normal size of the key pattern and sensing pattern as necessary. By inducing the user to check / receive or detect precisely (precise) the user's control doctor (touch operation) on the user's side, unlike the conventional one, It can be guided to consume / enjoy the electronic device more smoothly while delivering / receiving it clearly.

Description

Key unit and sensing unit for a touch sensor

The present invention relates to a key unit and a sensing unit for a touch sensor, and more particularly, the touch position of the key pattern by further contacting and arranging a highly conductive metal line for imparting electrical uniformity to the edge of the key pattern. Measures to drastically reduce the potential difference (or resistance difference) of each star>, <Additionally contacting and arranging a highly conductive metal line for imparting electrical uniformity to the edge of the sensing pattern, the potential difference for each touch position of the sensing pattern (or And the measures to significantly reduce the resistance difference) are flexibly applied and implemented, thereby maintaining the normal size of the key pattern, the sensing pattern, etc. as necessary, while accurately maintaining the user's touch operation without any problems. Precisely), by inducing the user to check / receive or detect, the user's control doctor (touch operation) is transferred to the electronic device side, unlike the conventional one. / Reception while, relates more flexibility in the electronic apparatus in the consumption / it can be to guide to the enjoyment of a touch sensor unit for the key, and the sensing unit.

Recently, with the rapid development of electric, electronic and communication related technologies, various electronic devices that use touch sensors, for example, light-emitting capacitive touch sensors, as a series of <interface means between users / electronic devices> have been widely developed and distributed. It is becoming.

In general, the touch sensor according to the related art provided in such electronic devices, for example, the light-emitting capacitive touch sensor 10, as shown in Figs. 1 and 2, the key unit 1, the sensing unit ( 4), the backlight unit, the printed circuit board 7 and the like are taken in a close combination. In this case, the backlight unit employed in the touch sensor 10 may include an EL sheet (electroluminescence sheet) (shown in FIG. 1) capable of self-luminescence, or a light source 9a (for example, an LED). The light guide 9 (shown in FIG. 2) such as LGP (Light Guide Panel), LGF (Light Guide Film), etc., which surface-emits the light beams output from the side toward the key unit 1 can be flexibly selected.

In this case, the plurality of capacitive sensing patterns 3 provided in the sensing unit 4 are electrically connected to the control circuit 7a of the printed circuit board 7 on the electronic device through the electrical connection lines 5. The user touches the key patterns 2 provided on the key unit 1 through a part of his / her body, for example, a finger, and thus, the <circuit terminals in the electronic device connected to him> and < When a series of capacitance changes (i.e., changes in capacitance of an electronic device) occur between the user>, after sensing the change of the capacitance closely, a corresponding sensing signal is generated and the generated sensing signal is completed. By transmitting the to the control circuit (7a) side of the printed circuit board 7, the electronic device side, it is assisted to properly perform a series of operations corresponding to the user's operation intention.

Here, the preceding backlight unit, for example, EL sheet 6, light guide 9, etc., is a case in which a series of electrical signals are transmitted from the electromagnetic side, or light rays are output from the light source 9a. In this case, accordingly, a series of light emission states are formed and act as a back light of the key unit 1, so that the key patterns 2 which are brightly activated on the user side, for example, even in a dark environment such as night time or cloudy weather, can be properly applied. While checking, it assists to use the electronic device normally without any problem.

Under such a conventional system, as described above, the conventional touch sensor 10 has a user-side operation of touching the key pattern 2 provided in the key unit 1 as a starting point, and the series of user / electronic devices Since it performs an interface function, the problem of how accurately the key pattern 2 can check / receive user's touch operation is a very important parameter in determining the overall performance of the touch sensor 10. Will work.

However, as shown in Figs. 1 and 2, the conventional key pattern 2 inevitably maintains a size of a predetermined size or more for the convenience of the touch on the user side, and thus the touch positions A1, A2, A3, According to A4, the problem that a series of potential difference (or resistance difference) arises is inevitably shown.

Of course, according to the touch positions A1, A2, A3, and A4 of the key pattern 2, in the situation where a series of potential differences (or resistance differences) occur, the user's touch operation can be performed despite various efforts. It can not be delivered / received more accurately on the electronic device side, and eventually will face a serious situation that the overall efficiency of using the electronic device is greatly reduced.

On the other hand, under the conventional system described above, the sensing pattern 3 provided in the sensing unit 4 also uses a user-side operation of touching the key pattern 2 as a starting point, thereby providing a series of user / electronic device interface functions. As a result, the problem of how accurately the sensing pattern 3 can check / detect the user's touch operation is also a very important variable in determining the overall performance of the touch sensor 10. .

However, as shown in FIGS. 1 and 2, the conventional sensing pattern 3 also inevitably maintains a size larger than or equal to a certain size to execute a basic sensing function, and thus the touch positions B1, B2, B3, and B4. As a result, a problem that a series of potential differences (or resistance differences) occur is inevitably presented.

Of course, according to the touch positions B1, B2, B3, and B4 of the sensing pattern 3, even in a situation where a series of potential differences (or resistance differences) occur, the user's touch operation despite various efforts, It can not be delivered / received more accurately to the electronic device side, and eventually will face a serious situation that the overall efficiency of using the electronic device is greatly reduced.

Naturally, under these various adverse conditions, producers (electronic device producers, touch sensor producers, etc.) will not be able to flexibly respond to the recent user's demand for high quality, and thus will suffer from the severely inferior product competitiveness. Inevitably, the user side, too, can not avoid the damage that the use quality of the overall electronic device is greatly reduced.

Accordingly, an object of the present invention is to further contact and arrange a highly conductive metal line for imparting electrical uniformity to the edge of the key pattern, thereby greatly reducing the potential difference (or resistance difference) for each touch position of the key pattern. Measures>, <Measure to further reduce the potential difference (or resistance difference) per touch position of the sensing pattern by additionally contacting and arranging a highly conductive metal line for providing electrical uniformity to the edge of the sensing pattern> It is applied and implemented flexibly, and through this, the key pattern, sensing pattern, etc. can maintain their own size normally, and induce them to check / receive or detect user's touch operation accurately (precisely) without any problem. By doing so, on the user side, unlike the prior art, the control device (touch operation) of the electronic device is smoothly transmitted / received to the electronic device side more smoothly. It is to guide to non / enjoyment.

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

In order to achieve the above object, in the present invention, in the state installed in the electronic device, a key unit for a touch sensor operating in conjunction with a sensing unit having a sensing pattern, the base body; In a state arranged on the base body, it comprises a plurality of key patterns defining a user-side touch area, each of the key pattern is formed on the edge of the high conductive metal line, the high conductive metal line is the electrical conductivity of the key pattern Disclosed is a key unit for a touch sensor, characterized in that it has a higher electrical conductivity.

In addition, in another aspect of the present invention, in the state installed in the electronic device, the touch unit sensing unit for operating in conjunction with the key unit having a key pattern, the base unit; In the state arranged on the base body, a plurality of sensing the capacitance change of the electronic device due to the user-side operation of touching the key pattern, and transmits the sensing signal to the printed circuit board side provided in the electronic device Disclosed is a sensing unit for a touch sensor, comprising a sensing pattern, wherein a highly conductive metal line is formed at an edge of each sensing pattern.

In the present invention, according to the situation, <high-conductivity metal line for electrical uniformity is additionally contacted and arranged on the edge of the key pattern, thereby greatly reducing the potential difference (or resistance difference) for each touch position of the key pattern. Measures>, <Measure to further reduce the potential difference (or resistance difference) per touch position of the sensing pattern by additionally contacting and arranging a highly conductive metal line for providing electrical uniformity to the edge of the sensing pattern> In the real implementation environment of the present invention, the key pattern and the sensing pattern side normally maintain their own sizes as needed, but the user's touch operation can be checked / received accurately without any problems. As a result, the user's control intention (touch operation) can be accurately transmitted / received to the electronic device. As a result, the electronic device can be consumed and enjoyed more smoothly.

Hereinafter, a key unit and a sensing unit for a touch sensor according to the present invention will be described in detail with reference to the accompanying drawings.

As illustrated in FIG. 3, the touch sensor 100 employing one type of the present invention may be, for example, a key unit that is closely connected to each other in a state of being installed in various electronic devices such as a mobile phone, a PDP, and a game machine. 120, the sensing unit 130, the electroluminescent sheet 141, the printed circuit board 300, and the like are systematically combined, and actively act as a series of <user / electronic device interface means>. .

At this time, the key unit 120 according to the present invention is a key pad 121 acting as a base of the key pattern 122, and in a state arranged on the front of the key pad 121, predetermined letters, numbers, etc. While visually representing, a plurality of key patterns 122 defining a user-side touch area are systematically combined. In this case, the key pad 121 may be a polycarbonate film, a polyethylene terephthalate film, an acrylic film, or the like, and the key pattern 122 may be a conductive polymer pattern, for example, a PEDOT pattern (PEDOT pattern: Poly Ethylene DiOxty Thiospnene). pattern) can be selected.

Meanwhile, the sensing unit 130 according to the present invention includes a sensing pad 131 serving as a base of the sensing pattern 132 and electrical connection lines 133 in a state arranged on the front surface of the sensing pad 131. Through this, the sensing patterns 132 having a structure electrically connected to the control circuit 300a of the printed circuit board 300 may have a systematic combination.

In this case, the sensing pad 131 may be a polycarbonate film, a polyethylene terephthalate film, an acrylic film, or the like. The sensing pattern 132 may be a pattern of a transparent conductive material, preferably, an ITO pattern. Alternatively, a conductive polymer pattern such as a PEDOT pattern (Poly Ethylene DiOxty Thiospnene pattern) may be flexibly selected.

In this situation, the sensing patterns 132 allow the user to touch the key patterns 122 on the side of the key unit 120 through a part of his / her body, for example, a finger, whereby <the electronic device connected to the self 132 When a series of capacitance changes (i.e., changes in the capacitance of an electronic device) occur between a circuit terminal> and a <user> in the device, the change of the capacitance is carefully sensed, and then a corresponding sensing signal is detected. It generates and transmits the generated sensing signal to the control circuit 300a side of the printed circuit board 300, thereby assisting the electronic device to properly perform a series of operations corresponding to the user's operation intention Done.

In this case, the front electroluminescent sheet 141, for example, the EL sheet, when a series of electrical signals are transmitted from the electronic device side, accordingly, makes its own emission state, thereby emitting light of the key pattern 122 By acting as a backlight for the user, it is possible to assist the normal use of the electronic device without any problems while properly checking the brightly activated key patterns 122 on the user side, even in a dark environment such as a night or a cloudy weather. do.

Under such a system of the present invention, as described above, the touch sensor 100 sets a user-side operation of touching the key pattern 122 provided in the key unit 120 as a starting point, and thus a series of user / electronic device interfaces. Since it performs a function, the problem of how accurately the key pattern 122 can check / receive user's touch operation is a very important parameter in determining the overall performance of the touch sensor 100. Will work.

In this sensitive situation, as shown in FIG. 3, the present invention takes measures to further contact and arrange the highly conductive metal line 123 for providing electrical uniformity to the outer edge of each key pattern 122. Done. In this case, the highly conductive metal line 123 of the present invention is preferably made of a material having a higher electrical conductivity than the electrical conductivity of the key pattern 122 (for example, pedo pattern) placed inside thereof, for example, gold, silver, Alternatively, copper may be formed.

Of course, in the improved situation in which the highly conductive metal line 123 having a higher electrical conductivity than the electrical conductivity of the corresponding key pattern 122 is further contacted and disposed on the outer edge of each key pattern 122, The potential difference (or resistance difference) for each of the touch positions A1, A2, A3, and A4 of the key pattern 122 may naturally be greatly reduced under the electrical influence of the highly conductive metal line 123, resulting in a key pattern ( On the side of 122), for convenience of the user's touch, while maintaining a size of a certain size or more normally, no <potential difference (or resistance difference) problem according to the touch positions A1, A2, A3, and A4 is generated. Without any difficulty, the user's touch operation can be checked / received very accurately.

As a matter of course, under the implementation environment of the present invention, the user side can transmit / receive his / her control intention (touch operation) more accurately to the electronic device side, unlike the related art, and thus, the overall electronic device use efficiency is greatly improved. It will be able to enjoy the flexibility flexibly, and producers (electronic device producers, touch sensor producers, etc.) will also be able to flexibly respond to the recent user's demand for high quality, which greatly enhances the company's product competitiveness. I can enjoy it widely.

Meanwhile, as described above, the sensing pattern 132 provided in the sensing unit 130 also performs a series of user / electronic device interface functions using the user side operation of touching the key pattern 122 as a starting point. Therefore, <the problem of how accurately the sensing pattern 132 can check / detect the user side touch operation> is also a very important parameter in determining the overall performance of the touch sensor 100.

In such a sensitive situation, as shown in FIG. 3, in the present invention, an action of additionally contacting and arranging the highly conductive metal line 134 for providing electrical uniformity to the outer edge of each sensing pattern 132. Will be found. Even in this case, the highly conductive metal line 134 of the present invention is preferably a material having a higher electrical conductivity than the electrical conductivity of the sensing pattern 132 (eg, ITO pattern, pedo pattern, etc.) placed inside thereof. , Gold, silver, or copper.

Of course, each sensing pattern under an improved situation in which the highly conductive metal line 134 having a higher electrical conductivity than the electrical conductivity of the sensing pattern 132 is further contacted and disposed on the outer edge of the sensing pattern 132. The potential difference (or resistance difference) for each of the touch positions B1, B2, B3, and B4 of 132 may be greatly reduced naturally under the electrical influence of the highly conductive metal line 134, and thus, the sensing pattern 132 In order to execute the basic sensing function, the controller maintains a size larger than a certain size normally, but does not cause any potential difference (or resistance difference) due to the touch positions B1, B2, B3, and B4. Without this, the user's touch operation can be checked / received very precisely.

As a matter of course, even under the implementation environment of the present invention, the user side can transmit / receive his / her control intention (touch operation) more accurately to the electronic device side, unlike the related art, and thus the overall electronic device use efficiency is greatly improved. It is possible to flexibly enjoy the benefits, and producers (electronic device producers, touch sensor producers, etc.) can also flexibly respond to the recent user's demand for quality enhancement, which greatly enhances the company's product competitiveness. You can enjoy a wide range.

On the other hand, as shown in Figure 4, under another type of the present invention, the touch sensor 101, the key unit 120a, the sensing unit 130a, the light guide 151, the printed circuit board in close contact with each other 300 and the like are systematically combined.

In this case, the light guide 151, for example, a light guide panel (LGP), a light guide film (LGF), or the like, emits a series of surface luminescence when light is output from a light source 155 (for example, an LED). By forming a state and acting as a back light of the key pattern 122 provided in the key unit 120a, the key pattern 122 which is brightly activated on the user side, even in a dark environment such as a night or a cloudy weather, for example While properly checking them, they assist in the normal use of electronic devices without any problems.

Of course, even under such a changed environment (that is, an environment in which the electroluminescent sheet 141 of FIG. 3 is changed to the light guide 151 of FIG. 4), in the present invention, the electrical uniformity of the outer edge of each key pattern 122 is improved. Further measures for contacting and arranging the highly conductive metal line 123 for application are made.

Even in this case, the highly conductive metal line 123 of the present invention is preferably a material having a higher electrical conductivity than the electrical conductivity of the key pattern 122 (for example, pedo pattern) placed inside thereof, such as gold and silver. Or, copper.

Furthermore, in the present invention, as in the previous embodiment, measures for additionally contacting and arranging the highly conductive metal line 134 for imparting electrical uniformity to the outer edge of each sensing pattern 132 are also taken. . Even in this case, the highly conductive metal line 134 of the present invention is preferably a material having a higher electrical conductivity than the electrical conductivity of the sensing pattern 132 (eg, ITO pattern, pedo pattern, etc.) placed inside thereof. , Gold, silver, or copper.

As such, even in an improved situation in which the highly conductive metal line 123 having an electrical conductivity higher than the electrical conductivity of the corresponding key pattern 122 is further contacted and disposed at the outer edge of each key pattern 122, each key The potential difference (or resistance difference) for each of the touch positions A1, A2, A3, and A4 of the pattern 122 may naturally be greatly reduced under the electrical influence of the highly conductive metal line 123, and thus, the key pattern 122 On the) side, for convenience of the user's touch, while maintaining a size of a certain size or more normally, no <potential difference (or resistance difference) problems according to the touch positions A1, A2, A3, and A4 are generated. Without difficulty, the user's touch operation can be checked / received very precisely.

Further, even in an improved situation in which the highly conductive metal line 134 having an electrical conductivity higher than the electrical conductivity of the sensing pattern 132 is further contacted and disposed on the outer edge of the sensing pattern 132, each sensing pattern The potential difference (or resistance difference) for each of the touch positions B1, B2, B3, and B4 of 132 may be greatly reduced naturally under the electrical influence of the highly conductive metal line, and thus, the sensing pattern 132 may detect the basic difference. In order to execute the function, while maintaining the size more than a certain size normally, <potential difference (or resistance difference) problem according to touch positions B1, B2, B3, and B4 does not occur at all, and as a result, the user side has no difficulty. The touch operation can be checked / received very precisely.

As a matter of course, even under such an implementation environment of the present invention, the user's control intention (touch operation) can be transmitted / received to the electronic device more precisely than in the related art, thereby greatly improving the overall electronic device use efficiency. The flexibility of the benefits can be enjoyed, and the producers (electronic device producers, touch sensor producers, etc.) can also flexibly respond to recent user needs requiring high quality, thereby greatly improving their product competitiveness. The benefits can be enjoyed widely.

On the other hand, as shown in Figure 5, the touch sensor 102 employing another type of the present invention, for example, in a state of being installed in various electronic devices, such as a mobile phone, a PDP, a game machine, in close connection with each other The key unit 120b, the sensing unit 130b, the electroluminescent sheet 140, the printed circuit board 300, and the like are systematically combined to form a series of <user / electronic device interface means>. Will work.

In this case, the key pattern 122 and the sensing pattern 124 constituting the key unit 120b and the sensing unit 130b share the key pad 121 with the base body, and share the front and rear surfaces of the key pad 121. Each of the structures occupies an occupied structure. Consequently, under this structure, the keypad 121 can flexibly perform not only a role as a key means but also a role as a capacitive sensing means.

At this time, the key unit 120b according to the present invention is a key pad 121 serving as a base of the key pattern 122, and in a state arranged on the front of the key pad 121, a predetermined letter, number, etc. While visually representing, a plurality of key patterns 122 defining a user-side touch area are systematically combined. In this case, the key pad 121 may be a polycarbonate film, a polyethylene terephthalate film, an acrylic film, or the like, and the key pattern 122 may be a conductive polymer pattern, for example, a PEDOT pattern (PEDOT pattern: Poly Ethylene DiOxty). Thiospnene pattern) can be selected.

In addition, the sensing unit 130b according to the present invention includes a key pad 121 serving as a base of the sensing pattern 124 and electrical connection lines 125 in a state arranged on the rear surface of the key pad 121. Through this, the sensing patterns 124 having a structure electrically connected to the control circuit 300a of the printed circuit board 300 are systematically combined.

Even in this case, the sensing pattern 124 may be a pattern of a transparent conductive material, preferably, an ITO pattern or a conductive polymer pattern, for example, a PEDOT pattern (Poly Ethylene DiOxty Thiospnene pattern). have.

In this situation, the sensing patterns 124 allow the user to touch the key patterns 122 on the side of the key unit 120b through a part of his / her body, for example, a finger, whereby <the electronic device connected to the self 131. When a series of capacitance changes (i.e., changes in the capacitance of an electronic device) occur between a circuit terminal> and a <user> in the device, the change of the capacitance is carefully sensed, and then a corresponding sensing signal is detected. It generates and transmits the generated sensing signal to the control circuit 300a side of the printed circuit board 300, thereby assisting the electronic device to properly perform a series of operations corresponding to the user's operation intention Done.

In this case, the front electroluminescent sheet 141, for example, the EL sheet, when a series of electrical signals are transmitted from the electronic device side, accordingly, makes its own light emitting state, thereby emitting light of the key pattern 122 By acting as a back light for the user, the user side, for example, in a dark environment such as night, cloudy weather, etc., while properly checking the brightly activated key patterns 122, assisting the normal use of the electronic device without any problems. Done.

Of course, even under such a changed environment (i.e., a changed environment in which the key unit 120b and the sensing unit 130b share the key pad 121 as the base body), in the present invention, the outer edges of the respective key patterns 122 Further measures to contact and arrange the highly conductive metal line 123 for uniform uniformity is to be taken.

Also in this case, the highly conductive metal line 123 of the present invention is preferably a material having a higher electrical conductivity than the electrical conductivity of the key pattern 122 (for example, pedo pattern) lying inside thereof, such as gold and silver. Or, copper.

In addition, in the present invention, as in the previous embodiment, measures for additionally contacting and arranging the highly conductive metal line 126 for providing electrical uniformity to the outer edge of each sensing pattern 124 are similarly taken. . Also in this case, the highly conductive metal line 126 of the present invention is preferably a material having a higher electrical conductivity than the electrical conductivity of the sensing pattern 124 (eg, ITO pattern, pedo pattern, etc.) placed inside thereof. , Gold, silver, or copper.

As such, even in an improved situation in which the highly conductive metal line 123 having an electrical conductivity higher than the electrical conductivity of the corresponding key pattern 122 is further contacted and disposed at the outer edge of each key pattern 122, each key The potential difference (or resistance difference) for each of the touch positions A1, A2, A3, and A4 of the pattern 122 may naturally be greatly reduced under the electrical influence of the highly conductive metal line 123, and thus, the key pattern 122 On the) side, for convenience of the user's touch, while maintaining a size of a certain size or more normally, no <potential difference (or resistance difference) problems according to the touch positions A1, A2, A3, and A4 are generated. Without difficulty, the user's touch operation can be checked / received very precisely.

Further, even in an improved situation in which the highly conductive metal line 126 having a higher electrical conductivity than the electrical conductivity of the sensing pattern 124 is further contacted and disposed on the outer edge of the sensing pattern 124, each sensing pattern The potential difference (or resistance difference) for each of the touch positions B1, B2, B3, and B4 of 124 can be greatly reduced naturally under the electrical influence of the highly conductive metal line 126, and thus, the sensing pattern 124 In order to execute the basic sensing function, the size side is normally maintained over a certain size, but does not cause any potential difference (or resistance difference) problem according to the touch positions B1, B2, B3, and B4. Without this, the user's touch operation can be checked / received very precisely.

As a matter of course, even under such an implementation environment of the present invention, the user's control intention (touch operation) can be transmitted / received to the electronic device more accurately than in the related art, thereby greatly improving the overall electronic device use efficiency. It will be able to flexibly enjoy the benefits, and producers (electronic device producers, touch sensor producers, etc.) will also be able to flexibly respond to the recent user's demand for higher quality, thereby significantly improving their product competitiveness. It is possible to enjoy a wide range of benefits.

On the other hand, as shown in Figure 6, under another type of the present invention, the touch sensor 103 is the key unit 120c, the sensing unit 130c, the light guide 151, the printed circuit in close cooperation with each other The substrate 300 and the like are systematically combined.

Even in this case, the key unit 120c and the sensing unit 130c share the key pad 121 with the base body, and take the structure occupying the front and rear surfaces of the key pad 121, respectively. Under the structure, the keypad 121 can flexibly perform not only a role as a key means but also a role as a capacitive sensing means.

Of course, even under such a changed environment (that is, the environment in which the electroluminescent sheet 141 of FIG. 5 is changed to the light guide 151 of FIG. 6), in the present invention, the electrical uniformity of the outer edge of each key pattern 122 is improved. Further measures for contacting and arranging the highly conductive metal line 123 for application are made.

Even in this case, the highly conductive metal line 123 of the present invention is preferably a material having a higher electrical conductivity than the electrical conductivity of the key pattern 122 (for example, pedo pattern) placed inside thereof, such as gold and silver. Or, copper.

In addition, in the present invention, as in the previous embodiment, measures for additionally contacting and arranging the highly conductive metal line 126 for providing electrical uniformity to the outer edge of each sensing pattern 124 are similarly taken. . Also in this case, the highly conductive metal line 126 of the present invention is preferably a material having a higher electrical conductivity than the electrical conductivity of the sensing pattern 124 (eg, ITO pattern, pedo pattern, etc.) placed inside thereof. , Gold, silver, or copper.

As such, even in an improved situation in which the highly conductive metal line 123 having an electrical conductivity higher than the electrical conductivity of the corresponding key pattern 122 is further contacted and disposed at the outer edge of each key pattern 122, each key The potential difference (or resistance difference) for each of the touch positions A1, A2, A3, and A4 of the pattern 122 may naturally be greatly reduced under the electrical influence of the highly conductive metal line 123, and thus, the key pattern 122 On the) side, for convenience of the user's touch, while maintaining a size of a certain size or more normally, no <potential difference (or resistance difference) problems according to the touch positions A1, A2, A3, and A4 are generated. Without difficulty, the user's touch operation can be checked / received very precisely.

Further, even in an improved situation in which the highly conductive metal line 126 having a higher electrical conductivity than the electrical conductivity of the sensing pattern 124 is further contacted and disposed on the outer edge of the sensing pattern 124, each sensing pattern The potential difference (or resistance difference) for each of the touch positions B1, B2, B3, and B4 of 124 may be greatly reduced naturally under the electrical influence of the highly conductive metal line, and thus, the sensing pattern 124 may detect the basic difference. In order to execute the function, while maintaining the size more than a certain size normally, <potential difference (or resistance difference) problem according to touch positions B1, B2, B3, and B4 does not occur at all, and as a result, the user side has no difficulty. The touch operation can be checked / received very precisely.

As a matter of course, even under such an implementation environment of the present invention, the user's control intention (touch operation) can be transmitted / received to the electronic device more accurately than in the related art, thereby greatly improving the overall electronic device use efficiency. It will be able to flexibly enjoy the benefits, and producers (electronic device producers, touch sensor producers, etc.) will also be able to flexibly respond to the recent user's demand for higher quality, thereby significantly improving their product competitiveness. It is possible to enjoy a wide range of benefits.

On the other hand, as shown in Figure 7, the touch sensor 104 employing another type of the present invention, for example, in a state of being installed in various electronic devices, such as a mobile phone, PDP, game machine, in close connection with each other The key unit 120d, the sensing unit 130d, the printed circuit board 300, and the like are systematically combined, and actively act as a series of &quot; interface between user / electronic devices &quot;.

In this case, the sensing patterns 142 constituting the sensing unit 130d have a changed structure that occupies the entire surface of the electroluminescent sheet 141, for example, EL sheet, unlike the above embodiments. Under the structure, the electroluminescent sheet 141 can flexibly perform not only a role as a backlight but also a role as a capacitive sensing means.

At this time, the key unit 120d according to the present invention is a key pad 121 serving as a base of the key pattern 122, and in a state arranged in front of the key pad 121, a predetermined letter, number, etc. While visually representing, a plurality of key patterns 122 defining a user-side touch area are systematically combined. In this case, the key pad 121 may be a polycarbonate film, a polyethylene terephthalate film, an acrylic film, or the like, and the key pattern 122 may be a conductive polymer pattern, for example, a PEDOT pattern (PEDOT pattern: Poly Ethylene DiOxty). Thiospnene pattern) can be selected.

In addition, the sensing unit 130d according to the present invention includes an electroluminescent sheet 141 serving as a base of the sensing pattern 142 and an electrical connection line 143 in a state arranged on the front surface of the electroluminescent sheet 141. The sensing patterns 142 having a structure electrically connected to the control circuit 300a of the printed circuit board 300 are systematically combined.

Even in this case, as the sensing pattern 142, a pattern of a transparent conductive material, preferably, an ITO pattern or a conductive polymer pattern, for example, a PEDOT pattern (Poly Ethylene DiOxty Thiospnene pattern) may be selected. have.

In this case, the electroluminescent sheet 141 serving as a base of the sensing pattern 142 (for example, the electroluminescent sheet 141 may be, for example, a conductive transparent electrode layer, a light emitting layer (or a fluorescent layer), an insulating layer (or a dielectric layer)). , The rear electrode layer, the protective layer, etc. are integrally combined, and details thereof are included in the technical common sense of the art, so the detailed description thereof will be omitted). When transmitted, accordingly, the light is activated by itself, and serves as a backlight for emitting the key pattern 122, thereby enabling the user to brightly activate the key even in a dark environment such as at night or cloudy weather. While properly checking the patterns 122, without any problems, it assists in the normal use of the electronic device.

Also, in this situation, the sensing patterns 142 may allow the user to touch the key patterns 122 on the side of the key unit 120d through a part of his / her body, for example, a finger, and thus, the < When a series of capacitance changes (i.e., changes in capacitance of an electronic device) occur between a circuit terminal> and <user> in a connected electronic device, the change of the capacitance is closely sensed, and then the corresponding sensing is performed. By generating a signal and transmitting the generated sensing signal to the control circuit 300a side of the printed circuit board 300, the electronic device side can appropriately perform a series of operations corresponding to the user's manipulation intention. To help you.

Of course, even under such a changed environment (i.e., a changed environment in which the electroluminescent sheet 141 serves as a backlight and a capacitive sensing means at the same time), the outer edge of each key pattern 122 in the present invention. Further contact and arrangement of the highly conductive metal line 123 for imparting electrical uniformity to the device is to be taken.

Even in this case, the highly conductive metal line 123 of the present invention is preferably a material having a higher electrical conductivity than the electrical conductivity of the key pattern 122 (for example, pedo pattern) placed inside thereof, such as gold and silver. Or, copper.

In addition, in the present invention, as in the previous embodiment, measures for additionally contacting and arranging the highly conductive metal line 144 for imparting electrical uniformity to the outer edge of each sensing pattern 142 are also taken. . Even in this case, the highly conductive metal line 144 of the present invention is preferably a material having a higher electrical conductivity than the electrical conductivity of the sensing pattern 142 (eg, ITO pattern, pedo pattern, etc.) placed inside thereof. , Gold, silver, or copper.

As such, even in an improved situation in which the highly conductive metal line 123 having an electrical conductivity higher than the electrical conductivity of the corresponding key pattern 122 is further contacted and disposed at the outer edge of each key pattern 122, each key The potential difference (or resistance difference) for each of the touch positions A1, A2, A3, and A4 of the pattern 122 may naturally be greatly reduced under the electrical influence of the highly conductive metal line 123, and thus, the key pattern 122 On the) side, for convenience of the user's touch, while maintaining a size of a certain size or more normally, no <potential difference (or resistance difference) problems according to the touch positions A1, A2, A3, and A4 are generated. Without difficulty, the user's touch operation can be checked / received very precisely.

Further, even in an improved situation in which the highly conductive metal line 144 having a higher electrical conductivity than the electrical conductivity of the sensing pattern 142 is additionally contacted and disposed on the outer edge of the sensing pattern 142, each sensing pattern The potential difference (or resistance difference) for each of the touch positions B1, B2, B3, and B4 of 142 may be significantly reduced naturally under the electrical influence of the highly conductive metal line 144, and thus, the sensing pattern 142 The side maintains a size larger than a certain size normally to execute the basic sensing function, but does not cause any potential difference (or resistance difference) due to the touch positions B1, B2, B3, and B4. Therefore, the user's touch operation can be checked / received very accurately.

As a matter of course, even under such an implementation environment of the present invention, the user's control intention (touch operation) can be transmitted / received to the electronic device more accurately than in the related art, thereby greatly improving the overall electronic device use efficiency. It will be able to flexibly enjoy the benefits, and producers (electronic device producers, touch sensor producers, etc.) will also be able to flexibly respond to the recent user's demand for higher quality, thereby significantly improving their product competitiveness. It is possible to enjoy a wide range of benefits.

Meanwhile, as shown in FIG. 8, the touch sensor 105 employing another type of the present invention is closely connected to each other in a state of being installed in various electronic devices such as a mobile phone, a PDP, and a game machine. The key unit 120e, the sensing unit 130e, the printed circuit board 300, and the like are systematically combined, and act as a series of <interface between user / electronic devices>.

In this case, the sensing patterns 152 constituting the sensing unit 130e take a changed structure to occupy the entire surface of the light guide 151 unlike the previous embodiments, and eventually, under such a structure, the light guide ( 151 can flexibly perform not only a role as a backlight but also a role as a capacitive sensing means.

At this time, the key unit 120e according to the present invention is a key pad 121 serving as a base of the key pattern 122, and in a state arranged on the front of the key pad 121, predetermined letters, numbers, etc. While visually representing, a plurality of key patterns 122 defining a user-side touch area are systematically combined. In this case, the key pad 121 may be a polycarbonate film, a polyethylene terephthalate film, an acrylic film, or the like, and the key pattern 122 may be a conductive polymer pattern, for example, a PEDOT pattern (PEDOT pattern: Poly Ethylene DiOxty). Thiospnene pattern) can be selected.

In addition, the sensing unit 130e according to the present invention includes a light guide 151 serving as a base of the sensing pattern 152 and electrical connection lines 153 in a state arranged on the front surface of the light guide 151. Through this, the sensing patterns 152 having a structure electrically connected to the control circuit 300a of the printed circuit board 300 are systematically combined.

Even in this case, as the sensing pattern 152, a pattern of a transparent conductive material, preferably, an ITO pattern or a conductive polymer pattern, for example, a PEDOT pattern (Poly Ethylene DiOxty Thiospnene pattern) may be selected. As the light guide 151, for example, LGP (Light Guide Panel) in the form of a plastic injection molding, or LGF (Light Guide Film) in the form of an insulating film such as polycarbonate, polyethylene terephthalate, acrylic resin, or the like may be selected. .

At this time, when the light guide 151 serving as the base of the sensing pattern 152 is output from a light source 155 (for example, an LED), the light guide 151 forms a series of surface emitting states accordingly, thereby forming the key unit 120e. By acting as a back light of the key pattern 122 provided in the electronic device, the user side, for example, under dark conditions such as night, cloudy weather, while properly checking the brightly activated key patterns 122, without any problems, It will assist in the normal use of the device.

Also, in this situation, the sensing patterns 152 may allow the user to touch the key patterns 122 on the side of the key unit 120e through a part of his / her body, for example, a finger, and thus, <self 152 and When a series of capacitance changes (i.e., changes in capacitance of an electronic device) occur between a circuit terminal> and <user> in a connected electronic device, the change of the capacitance is closely sensed, and then the corresponding sensing is performed. By generating a signal and transmitting the generated sensing signal to the control circuit 300a side of the printed circuit board 300, the electronic device side can appropriately perform a series of operations corresponding to the user's manipulation intention. To help you.

Of course, even under such a changed environment (i.e., a changed environment in which the light guide 151 serves as a backlight and a capacitive sensing means at the same time), in the present invention, the outer edge of each key pattern 122 Further contact and arrangement of the highly conductive metal line 123 for imparting electrical uniformity to the device is to be taken.

Even in this case, the highly conductive metal line 123 of the present invention is preferably a material having a higher electrical conductivity than the electrical conductivity of the key pattern 122 (for example, pedo pattern) placed inside thereof, such as gold and silver. Or, copper.

Furthermore, in the present invention, as in the previous embodiment, measures for additionally contacting and arranging the highly conductive metal line 154 for providing electrical uniformity to the outer edge of each sensing pattern 152 will be similarly taken. . Even in this case, the highly conductive metal line 154 of the present invention is preferably a material having a higher electrical conductivity than the electrical conductivity of the sensing pattern 152 (eg, ITO pattern, pedo pattern, etc.) placed inside thereof. , Gold, silver, or copper.

As such, even in an improved situation in which the highly conductive metal line 123 having an electrical conductivity higher than the electrical conductivity of the corresponding key pattern 122 is further contacted and disposed at the outer edge of each key pattern 122, each key The potential difference (or resistance difference) for each of the touch positions A1, A2, A3, and A4 of the pattern 122 may naturally be greatly reduced under the electrical influence of the highly conductive metal line 123, and thus, the key pattern 122 On the) side, for convenience of the user's touch, while maintaining a size of a certain size or more normally, no <potential difference (or resistance difference) problems according to the touch positions A1, A2, A3, and A4 are generated. Without difficulty, the user's touch operation can be checked / received very precisely.

Further, even under an improved situation in which the highly conductive metal line 154 having a higher electrical conductivity than the electrical conductivity of the sensing pattern 152 is further contacted and disposed on the outer edge of the sensing pattern 152, each sensing pattern The potential difference (or resistance difference) for each of the touch positions B1, B2, B3, and B4 of 152 may be greatly reduced naturally under the electrical influence of the highly conductive metal line 154, and thus, the sensing pattern 152 The side maintains a size larger than a certain size normally to execute the basic sensing function, but does not cause any potential difference (or resistance difference) due to the touch positions B1, B2, B3, and B4. Therefore, the user's touch operation can be checked / received very accurately.

As a matter of course, even under such an implementation environment of the present invention, the user's control intention (touch operation) can be transmitted / received to the electronic device more accurately than in the related art, thereby greatly improving the overall electronic device use efficiency. It will be able to flexibly enjoy the benefits, and producers (electronic device producers, touch sensor producers, etc.) will also be able to flexibly respond to the recent user's demand for higher quality, thereby significantly improving their product competitiveness. It is possible to enjoy a wide range of benefits.

On the other hand, as shown in Figures 9 and 10 (reference, Figure 10 is a view of Figure 9 upside down), the touch sensor 106 employing another type of the present invention is, for example, a mobile phone, a PDP , A key unit 120f, a sensing unit 130f, a printed circuit board 300, etc., which are closely connected to each other in a state of being installed in various electronic devices such as a game machine, are systematically combined, and a series of <user / As an interface means between electronic devices>.

In this case, the key pattern 122 and the sensing pattern 152 constituting the key unit 120f and the sensing unit 130f share the light guide 151 as a base, and share the front and rear surfaces of the light guide 151. In this structure, the light guide 151 can flexibly perform not only a role as a backlight means but also a role as a key means and a role as a capacitive sensing means. Will be.

In this case, reference numeral 400 denotes a reflector that reflects the light incident from the light source 155 to the front surface of the light guide 151 to improve the output luminance of the light, and reference numeral 401 denotes the light source 155. Means a light diffusion induction pattern which diffuses the light incident from the light beam and improves the output luminance of the light.

Here, the key unit 120f according to the present invention includes a light guide 151 serving as a base of the key pattern 122 and a predetermined letter, number, or the like in a state arranged on the front surface of the light guide 151. While visually representing, a plurality of key patterns 122 defining a user side touch area are systematically combined (see FIG. 9). In this case, as the light guide 151, for example, LGP (Light Guide Panel) in the form of a plastic injection molding, or LGF (Light Guide Film) in the form of an insulating film such as polycarbonate, polyethylene terephthalate, acrylic resin, or the like may be selected. The key pattern 122 may be a conductive polymer pattern, for example, a PEDOT pattern (Poly Ethylene DiOxty Thiospnene pattern).

In addition, the sensing unit 130f according to the present invention includes a light guide 151 serving as a base of the sensing pattern 152 and an electrical connection line 153 in a state arranged on the rear surface of the light guide 151. Through this, the sensing patterns 152 having a structure electrically connected to the control circuit 300a of the printed circuit board 300 are systematically combined (see FIG. 10).

Even in this case, as the sensing pattern 152, a pattern of a transparent conductive material, preferably, an ITO pattern or a conductive polymer pattern, for example, a PEDOT pattern (Poly Ethylene DiOxty Thiospnene pattern) may be selected. have.

At this time, when the light guide 151 serving as the base of the sensing pattern 152 is output from a light source 155 (for example, an LED), the light guide 151 forms a series of surface emitting states accordingly, thereby forming the key unit 120e. By acting as a back light of the key pattern 122 provided in the electronic device, the user side, for example, under dark conditions such as night, cloudy weather, while properly checking the brightly activated key patterns 122, without any problems, It will assist in the normal use of the device.

In this situation, the sensing patterns 152 allow the user to touch the key patterns 122 on the side of the key unit 120f through a part of his / her body, for example, a finger, whereby <the electronic device connected to the self 152. When a series of capacitance changes (i.e., changes in the capacitance of an electronic device) occur between a circuit terminal> and a <user> in the device, the change of the capacitance is carefully sensed, and then a corresponding sensing signal is detected. It generates and transmits the generated sensing signal to the control circuit 300a side of the printed circuit board 300, so that the electronic device can properly perform a series of operations corresponding to the user's operation intention To help.

Of course, even under such a changed environment (i.e., a changed environment in which the key unit 120f and the sensing unit 130f share the light guide 151 as a base body), in the present invention, the electric power is applied to the outer edge of each key pattern 122. Further measures to contact and arrange the highly conductive metal line 123 for uniform uniformity is to be taken.

Even in this case, the highly conductive metal line 123 of the present invention is preferably a material having a higher electrical conductivity than the electrical conductivity of the key pattern 122 (for example, pedo pattern) placed inside thereof, such as gold and silver. Or, copper.

Furthermore, in the present invention, as in the previous embodiment, measures for additionally contacting and arranging the highly conductive metal line 154 for providing electrical uniformity to the outer edge of each sensing pattern 152 will be similarly taken. . Even in this case, the highly conductive metal line 154 of the present invention is preferably a material having a higher electrical conductivity than the electrical conductivity of the sensing pattern 152 (eg, ITO pattern, pedo pattern, etc.) placed inside thereof. , Gold, silver, or copper.

As such, even in an improved situation in which the highly conductive metal line 123 having an electrical conductivity higher than the electrical conductivity of the corresponding key pattern 122 is further contacted and disposed at the outer edge of each key pattern 122, each key The potential difference (or resistance difference) for each of the touch positions A1, A2, A3, and A4 of the pattern 122 may naturally be greatly reduced under the electrical influence of the highly conductive metal line 123, resulting in a key pattern 122 On the) side, for convenience of the user's touch, while maintaining a size of a certain size or more normally, no <potential difference (or resistance difference) problems according to the touch positions A1, A2, A3, and A4 are generated. Without difficulty, the user's touch operation can be checked / received very precisely.

Further, even under an improved situation in which the highly conductive metal line 154 having a higher electrical conductivity than the electrical conductivity of the sensing pattern 152 is further contacted and disposed on the outer edge of the sensing pattern 152, each sensing pattern The potential difference (or resistance difference) for each of the touch positions B1, B2, B3, and B4 of 152 may be greatly reduced naturally under the electrical influence of the highly conductive metal line 154, and thus, the sensing pattern 152 The side maintains a size larger than a certain size normally to execute the basic sensing function, but does not cause any potential difference (or resistance difference) due to the touch positions B1, B2, B3, and B4. Therefore, the user's touch operation can be checked / received very accurately.

As a matter of course, even under such an implementation environment of the present invention, the user's control intention (touch operation) can be transmitted / received to the electronic device more accurately than in the related art, thereby greatly improving the overall electronic device use efficiency. It will be able to flexibly enjoy the benefits, and producers (electronic device producers, touch sensor producers, etc.) will also be able to flexibly respond to the recent user's demand for higher quality, thereby significantly improving their product competitiveness. It is possible to enjoy a wide range of benefits.

On the other hand, as shown in Figures 11 and 12 (reference, Figure 12 is an inverted view of Figure 11), the touch sensor 107 employing another type of the present invention is, for example, mobile phone, PDP , A key unit 120g, a sensing unit 130g, a printed circuit board 300, etc., which are closely connected to each other in a state of being installed in various electronic devices such as a game machine, are systematically combined, and a series of <user / As an interface means between electronic devices>.

In this case, the key patterns 122 and the sensing patterns 152 constituting the key unit 120g and the sensing unit 130g utilize the first and second light guides 151 and 156 stacked up and down as bases, respectively. <Structure occupying the front surface of the first light guide 151> (in the case of the key pattern 122) (see FIG. 11), <Structure occupying the rear surface of the second light guide 156> (sensing pattern (152) (see FIG. 12), and in turn, under this structure, the first and second light guides 151 and 156 respectively serve not only as a backlight means, but also as a key means. In addition, even the role as a capacitive sensing means can be flexibly performed simultaneously.

In this case, reference numeral 400 denotes a reflecting plate that reflects light rays incident from the light source 155 to the front surfaces of the first and second light guides 151 and 156, thereby improving the output luminance of the corresponding light rays. 401 denotes a light diffusion induction pattern which diffuses the light incident from the light source 155 and improves the output luminance of the light. Reference numerals 157 and 158 denote key patterns for the light incident from the light source 155. It refers to the light concentration induction pattern to concentrate and output to the (122).

Here, the key unit 120g according to the present invention includes a first letter 151 serving as a base of the key pattern 122 and a predetermined letter in a state arranged on the front surface of the first light guide 151. While visually expressing numbers and the like, a plurality of key patterns 122 defining a user-side touch area are systematically combined (see FIG. 11). In this case, for example, LGP (Light Guide Panel) in the form of a plastic injection molding, or LGF (Light Guide Film) in the form of an insulating film such as polycarbonate, polyethylene terephthalate, acrylic resin, or the like is selected as the first light guide 151. The key pattern 122 may be a conductive polymer pattern, for example, a PEDOT pattern (Poly Ethylene DiOxty Thiospnene pattern).

In addition, the sensing unit 130g according to the present invention has a second light guide 156 serving as a base of the sensing pattern 152 and an electrical connection in a state of being arranged on the rear surface of the second light guide 156. Through the lines 153, the sensing patterns 152 having a structure electrically connected to the control circuit 300a of the printed circuit board 300 are systematically combined (see FIG. 12).

Even in this case, as the sensing pattern 152, a pattern of a transparent conductive material, preferably, an ITO pattern or a conductive polymer pattern, for example, a PEDOT pattern (Poly Ethylene DiOxty Thiospnene pattern) may be selected. As the second light guide 156, for example, LGP (Light Guide Panel) in the form of a plastic injection molding, or LGF (Light Guide Film) in the form of an insulating film such as polycarbonate, polyethylene terephthalate, acrylic resin, etc. is flexibly selected. Can be.

At this time, the <first light guide 151 serving as the base of the key pattern 122> and <the second light guide 156 serving as the base of the sensing pattern 152> are light sources 155 (for example, LEDs). When light rays are output from the light, a series of surface emission states are formed accordingly, and act as a backlight of the key pattern 122 included in the key unit 120g, so that the user side, for example, at night, cloudy weather, Even in the dark environment of the, while properly checking the brightly activated key pattern 122, it is assisted to use the electronic device normally, without any problems.

In this situation, the sensing patterns 152 allow the user to touch the key patterns 122 on the side of the key unit 120g through a part of his / her body, for example, a finger, and thus, the electronic device connected to the self 152. When a series of capacitance changes (i.e., changes in the capacitance of an electronic device) occur between a circuit terminal> and a <user> in the device, the change of the capacitance is carefully sensed, and then a corresponding sensing signal is detected. It generates and transmits the generated sensing signal to the control circuit 300a side of the printed circuit board 300, thereby assisting the electronic device to properly perform a series of operations corresponding to the user's operation intention Done.

Of course, even under such a changed environment (i.e., a changed environment in which the key unit 120g and the sensing unit 130g utilize the first light guide 151 and the second light guide 156 as a base body), Further measures to contact and arrange the highly conductive metal line 123 for providing electrical uniformity to the outer edge of the key pattern 122.

Even in this case, the highly conductive metal line 123 of the present invention is preferably a material having a higher electrical conductivity than the electrical conductivity of the key pattern 122 (for example, pedo pattern) placed inside thereof, such as gold and silver. Or, copper.

Furthermore, in the present invention, as in the previous embodiment, measures for additionally contacting and arranging the highly conductive metal line 154 for providing electrical uniformity to the outer edge of each sensing pattern 152 will be similarly taken. . Even in this case, the highly conductive metal line 154 of the present invention is preferably a material having a higher electrical conductivity than the electrical conductivity of the sensing pattern 152 (eg, ITO pattern, pedo pattern, etc.) placed inside thereof. , Gold, silver, or copper.

As such, even in an improved situation in which the highly conductive metal line 123 having an electrical conductivity higher than the electrical conductivity of the corresponding key pattern 122 is further contacted and disposed at the outer edge of each key pattern 122, each key The potential difference (or resistance difference) for each of the touch positions A1, A2, A3, and A4 of the pattern 122 may naturally be greatly reduced under the electrical influence of the highly conductive metal line 123, and thus, the key pattern 122 On the) side, for convenience of the user's touch, while maintaining a size of a certain size or more normally, no <potential difference (or resistance difference) problems according to the touch positions A1, A2, A3, and A4 are generated. Without difficulty, the user's touch operation can be checked / received very precisely.

Further, even under an improved situation in which the highly conductive metal line 154 having a higher electrical conductivity than the electrical conductivity of the sensing pattern 152 is further contacted and disposed on the outer edge of the sensing pattern 152, each sensing pattern The potential difference (or resistance difference) for each of the touch positions B1, B2, B3, and B4 of 152 may be greatly reduced naturally under the electrical influence of the highly conductive metal line 154, and thus, the sensing pattern 152 The side maintains a size larger than a certain size normally to execute the basic sensing function, but does not cause any potential difference (or resistance difference) due to the touch positions B1, B2, B3, and B4. Therefore, the user's touch operation can be checked / received very accurately.

As a matter of course, even under such an implementation environment of the present invention, the user's control intention (touch operation) can be transmitted / received to the electronic device more accurately than in the related art, thereby greatly improving the overall electronic device use efficiency. It will be able to flexibly enjoy the benefits, and producers (electronic device producers, touch sensor producers, etc.) will also be able to flexibly respond to the recent user's demand for higher quality, thereby significantly improving their product competitiveness. It is possible to enjoy a wide range of benefits.

On the other hand, as shown in Figure 13, the touch sensor 108 employing another type of the present invention, for example, in a state of being installed in various electronic devices, such as a mobile phone, PDP, game machine, in close cooperation with each other The key unit 120h, the sensing unit 130h, the printed circuit board 300, and the like are systematically combined and actively act as a series of &quot; interface between user / electronic devices &quot;.

In this case, the key patterns 122 and the sensing patterns 152 constituting the key unit 120h and the sensing unit 130h utilize the first and second light guides 151 and 156 stacked up and down as bases, respectively. <Structure occupying the entire surface of the first light guide 151> (in the case of the key pattern 122), <Structure occupying the entire surface of the second light guide 156> (in the case of the sensing pattern 152) In the end, under this structure, the first and second light guides 151 and 156, respectively, serve not only as a back light means, but also as a key means and as a capacitive sensing means. Even flexibility can be performed simultaneously.

In this case, reference numeral 400 denotes a reflecting plate that reflects light rays incident from the light source 155 to the front surfaces of the first and second light guides 151 and 156 to improve the output luminance of the light rays.

Here, the key unit 120h according to the present invention includes a first letter 151 serving as a base of the key pattern 122 and a predetermined letter in a state arranged on the front surface of the first light guide 151. While visually expressing numbers and the like, a plurality of key patterns 122 defining a user side touch area are systematically combined. In this case, for example, LGP (Light Guide Panel) in the form of a plastic injection molding, or LGF (Light Guide Film) in the form of an insulating film such as polycarbonate, polyethylene terephthalate, acrylic resin, or the like is selected as the first light guide 151. The key pattern 122 may be a conductive polymer pattern, for example, a PEDOT pattern (Poly Ethylene DiOxty Thiospnene pattern).

In addition, the sensing unit 130h according to the present invention includes a second light guide 156 that serves as a base of the sensing pattern 152, and is arranged on the front surface of the second light guide 156. Through the connection lines 153, the sensing patterns 152 having a structure electrically connected to the control circuit 300a of the printed circuit board 300 are systematically combined.

Even in this case, as the sensing pattern 152, a pattern of a transparent conductive material, preferably, an ITO pattern or a conductive polymer pattern, for example, a PEDOT pattern (Poly Ethylene DiOxty Thiospnene pattern) may be selected. As the second light guide 156, for example, LGP (Light Guide Panel) in the form of a plastic injection molding, or LGF (Light Guide Film) in the form of an insulating film such as polycarbonate, polyethylene terephthalate, acrylic resin, etc. is flexibly selected. Can be.

At this time, the <first light guide 151 serving as the base of the key pattern 122> and <the second light guide 156 serving as the base of the sensing pattern 152> are light sources 155 (for example, LEDs). When light rays are output from the device, a series of surface emission states are formed accordingly to act as a backlight of the key pattern 122 provided in the key unit 120h, so that the user side, for example, night, cloudy weather, Even in the dark environment of the, while properly checking the brightly activated key pattern 122, it is assisted to use the electronic device normally, without any problems.

In this situation, the sensing patterns 152 may allow the user to touch the key patterns 122 on the side of the key unit 120h through a part of his / her body, for example, a finger, and thus, may be connected to the self 152. When a series of capacitance changes (i.e., changes in capacitance of the electronic device) occur between a circuit terminal> and <user> in the electronic device, after sensing the change of the corresponding capacitance closely, the corresponding sensing signal And to transmit the generated sensing signal to the control circuit 300a side of the printed circuit board 300, so that the electronic device side can appropriately perform a series of operations corresponding to the user's operation intention. To help.

Of course, even under such a changed environment (i.e., a changed environment in which the key unit 120h and the sensing unit 130h utilize the first light guide 151 and the second light guide 156 as a base body), Further measures for contacting and arranging the highly conductive metal line 123 for providing electrical uniformity to the outer edge of the key pattern 122 are taken.

Even in this case, the highly conductive metal line 123 of the present invention is preferably a material having a higher electrical conductivity than the electrical conductivity of the key pattern 122 (for example, pedo pattern) placed inside thereof, such as gold and silver. Or, copper.

Furthermore, in the present invention, as in the previous embodiment, measures for additionally contacting and arranging the highly conductive metal line 154 for providing electrical uniformity to the outer edge of each sensing pattern 152 will be similarly taken. . Even in this case, the highly conductive metal line 154 of the present invention is preferably a material having a higher electrical conductivity than the electrical conductivity of the sensing pattern 152 (eg, ITO pattern, pedo pattern, etc.) placed inside thereof. , Gold, silver, or copper.

As such, even in an improved situation in which the highly conductive metal line 123 having an electrical conductivity higher than the electrical conductivity of the corresponding key pattern 122 is further contacted and disposed at the outer edge of each key pattern 122, each key The potential difference (or resistance difference) for each of the touch positions A1, A2, A3, and A4 of the pattern 122 may naturally be greatly reduced under the electrical influence of the highly conductive metal line 123, and thus, the key pattern 122 On the) side, for convenience of the user's touch, while maintaining a size of a certain size or more normally, no <potential difference (or resistance difference) problems according to the touch positions A1, A2, A3, and A4 are generated. Without difficulty, the user's touch operation can be checked / received very precisely.

Further, even under an improved situation in which the highly conductive metal line 154 having a higher electrical conductivity than the electrical conductivity of the sensing pattern 152 is further contacted and disposed on the outer edge of the sensing pattern 152, each sensing pattern The potential difference (or resistance difference) for each of the touch positions B1, B2, B3, and B4 of 152 may be greatly reduced naturally under the electrical influence of the highly conductive metal line 154, and thus, the sensing pattern 152 The side maintains a size larger than a certain size normally to execute the basic sensing function, but does not cause any potential difference (or resistance difference) due to the touch positions B1, B2, B3, and B4. Therefore, the user's touch operation can be checked / received very accurately.

As a matter of course, even under such an implementation environment of the present invention, the user's control intention (touch operation) can be transmitted / received to the electronic device more accurately than in the related art, thereby greatly improving the overall electronic device use efficiency. It is possible to flexibly enjoy the advantages, and the producers (electronic device producers, touch sensor producers, etc.) can also flexibly respond to the recent user's demand for high quality, so that the company's product competitiveness is greatly increased. The improved benefit can be enjoyed widely.

The present invention described above exhibits an overall useful effect in various types of electronic / electrical devices requiring a touch sensor.

And, in the foregoing, specific embodiments of the present invention have been described and illustrated, but it is obvious that the present invention may be variously modified and implemented 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.

1 and 2 is an exemplary view showing a light emitting capacitive touch sensor according to the prior art.

3 is an exemplary view showing a light emitting capacitive touch sensor according to the first embodiment of the present invention.

Figure 4 is an exemplary view showing a light emitting capacitive touch sensor according to a second embodiment of the present invention.

5 is an exemplary view showing a light emitting capacitive touch sensor according to a third embodiment of the present invention.

6 is an exemplary view showing a light emitting capacitive touch sensor according to a fourth embodiment of the present invention.

7 is an exemplary view showing a light emitting capacitive touch sensor according to a fifth embodiment of the present invention.

8 is an exemplary view showing a light emitting capacitive touch sensor according to a sixth embodiment of the present invention;

9 and 10 are exemplary views illustrating a light emitting capacitive touch sensor according to a seventh embodiment of the present invention.

11 and 12 are exemplary views illustrating a light emitting capacitive touch sensor according to an eighth embodiment of the present invention.

13 is an exemplary view showing a light emitting capacitive touch sensor according to a ninth embodiment of the present invention.

Claims (6)

delete In a key unit for a touch sensor that operates in conjunction with a sensing unit having a sensing pattern in a state in which the electronic device is installed, Basal body; In a state arranged on the base body, includes a plurality of key patterns defining a user-side touch area, A high conductivity metal line is formed at the edge of each key pattern, and the high conductivity metal line has a higher electrical conductivity than the electrical conductivity of the key pattern. The key unit of claim 2, wherein the highly conductive metal line has a gold, silver, or copper material. In a sensing unit for a touch sensor that operates in conjunction with a key unit having a key pattern in a state in which the electronic device is installed, Basal body; In the state arranged on the base body, a plurality of sensing the capacitance change of the electronic device due to the user-side operation of touching the key pattern, and transmits the sensing signal to the printed circuit board side provided in the electronic device Including a sensing pattern, Sensing unit for a touch sensor, characterized in that the high conductivity metal line is formed on the edge of each sensing pattern. The sensing unit of claim 4, wherein the highly conductive metal line has a higher electrical conductivity than that of the sensing pattern. The sensing unit of claim 5, wherein the highly conductive metal line has a gold, silver, or copper material.

Images