JP4436268B2 - Electronics - Google Patents

Description

  The present invention relates to an electronic apparatus having a foldable structure such as a mobile phone or a notebook computer.

  2. Description of the Related Art Conventionally, electronic devices having a foldable structure such as a mobile phone, a personal digital assistant (PDA), and a notebook computer (mobile computer) are known.

  Some of such electronic devices, for example, mobile phones, not only call, but also detect the state of the mobile phone and control a predetermined operation based on the detected result.

  For example, in a foldable mobile phone, a first case having an input operation surface used for information input operation and a second case having a display surface used for displaying information are input operation surfaces by a hinge. And the display surface face each other and can be folded. In such a mobile phone, the case is opened / closed for reasons such as turning off the illumination of the display unit when the case is closed so as to save battery consumption and withstand long-term use. Need to be detected.

  In order to detect the open / closed state of the housing, it is common to dispose a mechanical switch or sensor in the folding mechanism part. In order to omit such a switch or sensor, on the display surface, A structure having at least two convex portions, and in a folded state, the two convex portions press separate operation keys, respectively, and detect the folded state by detecting the pressed state is known. (For example, refer to Patent Document 1).

  Moreover, as a configuration for detecting the open / closed state of the housing, there is a configuration using an LED and an optical sensor (see, for example, Patent Document 2).

  Further, in a mobile phone with a camera having an imaging unit using an imaging element such as a CMOS in recent years, an imaging unit is disposed in a first casing, and an image captured by the imaging unit is added to the second casing. There is also a configuration that detects an open / closed state based on whether or not a body is reflected (for example, see Patent Document 3).

JP-A-4-259156 Japanese Patent Laid-Open No. 7-74691 JP 2004-135174 A

  Incidentally, in recent years, there has been a demand for higher performance of various devices, and as one of the higher performance of various devices, there has been a demand for higher performance in foldable electronic devices.

  For example, in a configuration in which the opening / closing state of a housing in an electronic device such as a mobile phone is detected using a mechanical switch or sensor, or an LED and a light sensor, the number of parts increases, and downsizing becomes difficult. There was a problem that the manufacturing cost also increased.

  Further, in the configuration in which the open / closed state of the housing is detected by pressing the separate operation keys by the two convex portions, the two convex portions accurately press the predetermined dial key with the predetermined strength. It is necessary to continue, and only these two dial keys are frequently pressed and rubbed by the hard substance constituting the casing, so that there is a problem that the durability is inferior.

  Further, in the configuration in which the open / closed state of the housing is detected based on whether or not the second housing is shown in the image captured by the imaging device, the imaging device needs to be operated at each predetermined timing, and the battery There is a problem that consumption of the battery is large, the frequency of charging the battery is increased, and the convenience is inferior.

  Thus, there is a need for a high-performance electronic device that can easily determine the state of the device such as the open / close state of the housing.

  The present invention has been made in view of these points, and an object thereof is to provide an electronic device that can easily achieve high performance.

In order to achieve the above-described object, the electronic device according to the present invention is characterized by a first housing having an input operation surface and a first housing that is openable and closable relative to the first housing. 2 is a foldable electronic device having a casing and a control unit that controls the operation of each unit, and the input operation surface is subjected to an approach or contact of a conductor in order to perform an information input operation. An electrostatic sensor having a plurality of input detection units capable of outputting a signal is provided, and the control unit is formed to be able to determine the state of the apparatus based on a pattern of an output signal from the electrostatic sensor. And the second casing is formed so that it can be opened and closed by being reversed with respect to the first casing, and a plurality of electrostatic sensors are provided on both the front and back surfaces of the second casing. Entering combinations that are not expected during input operations in the input detector Conductive members that can operate the detection unit are arranged in different patterns, and the control unit is in an open state in which both the housings are opened when there is no output signal from the electrostatic sensor. When the pattern of the output signal from the electrostatic sensor is a pattern formed by any one of the conductive members, it is determined that the two housings are folded and closed, and the first It is that it is formed so as to determine which of the front and back surfaces of the two housings is opposed to the first housing .

  According to the electronic apparatus of the present invention, the state of the apparatus such as the open / close state of the housing can be easily determined by the input detection unit of the electrostatic sensor, so that high performance can be easily achieved.

  The present invention will be described below with reference to embodiments shown in the drawings.

  FIG. 1 and FIG. 2 show a first embodiment of an electronic apparatus according to the present invention. FIG. 1 is a schematic front view of a main part in an opened state of the housing, and FIG. 2 is a block diagram of the main part. .

  As shown in FIG. 1, a mobile phone 1 as an electronic apparatus of the present embodiment includes a first housing 2 having an input operation surface 2a shown in the lower part of FIG. 1 and a first case 2 having a display surface 3a shown in the upper part of FIG. 2 housings 3. The two casings 2 and 3 are connected to each other at one side in the longitudinal direction shown in the vertical direction in FIG. 1 so as to be angularly displaceable by an opening and closing mechanism such as a hinge (not shown). In the closed state, the input operation surface 2a of the first housing 2 and the display surface 3a of the second housing 3 are formed to face each other.

  In general, the opening / closing mechanism can open and close the second housing 3 with respect to the first housing 2, but the first housing 2 with respect to the second housing 3 can be used. Can be opened and closed.

  That is, it is only necessary that the first casing 2 and the second casing 3 can be opened and closed relatively.

  The electronic device may be a foldable device such as a PDA or a notebook computer.

  The input operation surface 2a is used by the user for various input operations and setting operations such as input of a telephone number of a call or communication partner, input of an e-mail address and communication contents, setting of function operation, and the like. On the input operation surface 2a, there are 15 first operation keys 4A arranged in a matrix of 5 rows and 3 columns in a region below the substantially central portion of FIG. 1, and above these first operation keys 4A. A second operation key 4B, which is four pointing devices arranged so as to form a substantially circular shape as a whole at the center in the left-right direction, and a space in the vertical direction on each of the left and right sides of these second operation keys 4B. In total, 23 operation keys 4 (4 is a generic name for the first operation key 4A, the second operation key 4B, and the third operation key 4C) are arranged with the four third operation keys 4C arranged in the above. Has been.

  The operation key 4 serves as an execution part of an information input operation, and serves as an input unit 5 a of the input unit 5.

  As the input means 5 of this embodiment, an electrostatic sensor 6 is used as an input detection element, and an electrode 6a serving as an input detection unit of the electrostatic sensor 6 is disposed in the input unit 5a.

  The electrostatic sensor 6 detects an information input operation by approaching or touching an input operation body made of a conductor such as a fingertip or a stylus, and outputs a detection signal. When an input operation body or the like approaches or comes into contact with the electrode 6a of the electrostatic sensor 6 disposed in the input unit 5a of the means 5, the capacitance of the electrode 6a changes, and an output signal related to the change can be output. It is like that.

  That is, the input operation surface 2a is provided with an electrostatic sensor 6 having electrodes 6a as a plurality of input detection units capable of outputting a signal by the approach or contact of the input operation body in order to perform an information input operation. ing.

  Note that the number, position, shape, and the like of the operation keys 4 can be changed as necessary according to product specifications, design concepts, and the like.

  In addition, illumination means (key backlight) for improving visibility and operability is generally provided on the back of each operation key 4.

  The display surface 3a is used for displaying information, and a display screen 7a formed in a substantially vertically long rectangular shape of the display means 7 serving as an information display execution part at the center of the display surface 3a. Is arranged. The display means 7 can be selected and used from various conventionally known ones such as a liquid crystal display and an organic EL display.

  In the case where a liquid crystal display is used as the display means 7, an illumination means (backlight) is generally provided on the back surface of the display screen 7a.

  In order to operate the operation key 4, that is, the electrode 6 a of the combination as an input detection unit of the electrostatic sensor 6, which is not assumed during the input operation, on the display surface 3 a, the hatched region in FIG. 1. A substantially rectangular frame-shaped conductive member 8 surrounding the display screen 7a shown in FIG. 5 is disposed, and at least the conductive member 8 disposed on the display surface 3a in the closed state where both the housings 2 and 3 are folded. The operation key 4 that is partially opposed, more specifically, the electrode 6a of the electrostatic sensor 6 is operated to output an output signal.

  Examples of the conductive member 8 include various metal films and transparent conductive films such as indium tin oxide (ITO).

  Further, the conductive member 8 may be disposed at a position where the combination electrode 6a that is not assumed at the time of the input operation is operated in the closed state in which both the housings 2 and 3 are folded.

  Furthermore, the conductive member 8 can be disposed on the display screen 7a as required by the design concept and the like. In this case, the conductive member 8 may be formed of a transparent material such as a transparent conductive film.

  As shown in FIG. 2, the first casing 2 includes a control unit 11 formed of a CPU 9 and a memory 10 for controlling the operation of each unit, a call / communication means 12 for communication, and each unit. A battery (power source) or the like for supplying power to the battery is mounted. The control unit 11 is electrically connected to the input unit 5, the display unit 7, the call / communication unit 12, and the like. Furthermore, wireless communication means and the like used for information transmission / reception between the control unit 11 and the display means 7 are mounted inside the housings 2 and 3.

  In the memory 10, a program for determining the state of the apparatus based on at least a pattern of an output signal from the electrode 6a of the electrostatic sensor 6, data necessary for executing information display, telephone call / communication, etc. In addition, various data such as programs and programs are stored.

  As a program for determining the state of the apparatus based on the pattern of the output signal from the electrostatic sensor 6, a program for determining the open / closed state of both housings 2 and 3 can be exemplified.

  As a specific example, when there is no output signal from the electrostatic sensor 6, it is determined that both the casings 2 and 3 are opened, and the pattern of the output signal from the electrostatic sensor 6 is the conductive member 8. In the case of the pattern formed (operated) by the above, that is, when a preset one that can be operated by the conductive member 8 among the plurality of electrodes 6a is operated, the casings 2 and 3 are folded and closed. What is determined to be a state can be exemplified.

  The memory 10 may store a program for controlling each unit so that the state of the apparatus is set to various modes after the open / close state is determined based on the pattern of the output signal from the electrostatic sensor 6.

  For example, when it is determined that the housings 2 and 3 are folded so that the input operation surface 2a and the display surface 3a face each other, the incoming / reception is enabled and both illumination means are turned off. A program for controlling each unit so as to maintain the “standby closed mode” in the most power saving state can be given.

  Further, when it is determined that the input operation surface 2a and the display surface 3a are in the open state developed so as to be substantially in the same plane, the incoming / reception, lighting of both illumination means, and the input operation can be accepted. A program for controlling each unit so as to maintain the “active mode” can be given.

  Furthermore, after determining that both housings 2 and 3 are in the open state, if no input operation is performed for a predetermined time, the “standby mode” is used to reduce battery consumption by dimming the brightness of both backlights. The program which controls each part so that may be held can be mentioned.

  In other words, based on the output signal from the electrostatic sensor 6, the power supply state to the illumination means, and the operating state of each part such as the elapsed time, not only the open / closed states of the housings 2 and 3, but also It is possible to determine the state of the apparatus such as “mode”, “active mode”, “standby mode”.

  Since other configurations are the same as those of a conventionally known mobile phone, detailed description thereof will be omitted.

  Next, the operation of the present embodiment having the above-described configuration will be described.

  FIG. 3 is a schematic front view illustrating a main portion of the input operation surface in a closed state of the housing of the first embodiment of the electronic device according to the present invention.

  According to the mobile phone 1 of the present embodiment, it is possible to easily and reliably determine the state of the apparatus, that is, the open / closed state of the housings 2 and 3 based on the pattern of the output signal from the electrostatic sensor 6.

  That is, when the operator uses the mobile phone 1, as shown in FIG. 1, the operator unfolds the input operation surface 2 a and the display surface 3 a so as to be substantially in the same plane, and both housings 2, 3 Is opened. In this open state, when the operation key 4 is not operated, all the operation keys 4, that is, all the electrodes 6a of the electrostatic sensor 6 do not operate, and no output signal is output from each of them. Based on the program stored in the memory 10, it can be determined that both the housings 2 and 3 are in the opened state.

  When the operator does not use the mobile phone 1, the operator folds both the housings 2 and 3 so that the input operation surface 2 a and the display surface 3 a face each other, and both the housings 2 and 3 are closed. To do. In the closed state of both housings 2 and 3, as shown in FIG. 3, the conductive member 8 indicated by the two-dot chain line in FIG. 2 disposed on the display surface 3a of the operation keys 4 of the total 23 A total of 16 operation keys 4 that partially or completely oppose each other, and in this embodiment, 11 left and right sides of the 15 first operation keys 4A indicated by hatched areas in FIG. The conductive member 8 faces and approaches the first operation key 4A, the one second operation key 4B above the four second operation keys 4B, and the four third operation keys 4C. When the conductive member 8 approaches the 16 operation keys 4, the 16 operation keys 4, that is, the electrodes 6 a of the electrostatic sensor 6 operate collectively, and the respective outputs from the 16 electrodes 6 a. A signal is sent to the control unit 11.

  That is, in the input operation by the operator, it is extremely difficult to operate the 16 operation keys 4 in a lump. Therefore, 16 combinations of the 23 electrodes 6a of the electrostatic sensor 6 which are not assumed at the time of the input operation can be obtained. The electrode 6a operates.

  And the control part 11 which received the output signal from 16 electrodes 6a of the combination which is not assumed at the time of input operation is based on the program memorize | stored in the memory 10, and the both housings 2 and 3 are closed. Determine that there is.

  That is, it is determined that both the housings 2 and 3 are in the closed state based on the pattern of the output signals from the electrostatic sensor 6 that output signals are output from the 16 electrodes 6a.

  As described above, according to the mobile phone 1 of the present embodiment, the open / close state of both the housings 2 and 3 can be easily and reliably performed by the operation key 4 used for the input operation without using the conventional mechanical switch or sensor. Therefore, it is possible to reduce the number of parts, reduce the size, and reduce the manufacturing cost.

  Further, according to the mobile phone 1 of the present embodiment, the pattern obtained by bringing the conductive member 8 close to the operation key 4, specifically, the electrode 6 a of the electrostatic sensor 6, in the closed state of the housings 2 and 3. Since the closed state of both housings 2 and 3 can be detected based on the output signal of the operation key 4, unlike the conventional configuration in which the dial key is continuously pressed with a predetermined strength in the closed state, The influence can be eliminated.

  Furthermore, according to the mobile phone 1 of the present embodiment, the operation key 4 can be provided with an open / closed state detection function, so that the battery can be compared with a conventional open / closed state detection using an optical sensor or imaging means. Battery consumption is reduced, the battery is charged less frequently, and the battery has a long life and excellent usability.

  Therefore, according to the mobile phone 1 of the present embodiment, high performance can be easily achieved.

  4 and 5 show a second embodiment of the electronic apparatus according to the present invention. FIG. 5 is a schematic front view of the main part in the opened state of the housing, and FIG. 5 is in the closed state of the housing. It is a typical front view which permeate | transmits and shows the principal part of an input operation surface.

  The cellular phone 1A of the present embodiment shows a modification of the arrangement position of the conductive member 8 of the cellular phone 1 of the first embodiment described above.

  That is, in the mobile phone 1A of the present embodiment, as shown in FIG. 4, a conductive member 8A formed in a horizontally long elliptical shape is disposed below the display screen 7a of the display surface 3a.

  Since other configurations are the same as those of the mobile phone 1 of the first embodiment described above, the same or corresponding configurations as those of the mobile phone 1 of the first embodiment described above are denoted by the same reference numerals in the drawings. Detailed description thereof will be omitted.

  According to the mobile phone 1A of the present embodiment having such a configuration, as shown in FIG. 4, when the operation keys 4 are not operated in the open state of both housings 2 and 3, all the operation keys 4, that is, Since all of the electrodes 6a of the electrostatic sensor 6 do not operate and no output signal is output from each of them, the control unit 11 (see FIG. 2) is based on the program stored in the memory 10 (see FIG. 2). It can be determined that both housings 2 and 3 are in the open state.

  In the closed state of both housings 2 and 3, as shown in FIG. 5, this is indicated by a two-dot chain line in FIG. 5 arranged at the lower part of the display surface 3 a among 23 operation keys 4 in total. A total of three operation keys 4 that partially or completely face the conductive member 8A. In this embodiment, as indicated by the hatched area in FIG. 5, the upper one of the four second operation keys 4B. The conductive member 8A approaches one third operation key 4B and the upper two third operation keys 4C among the four third operation keys 4C. Then, when the conductive member 8A approaches the three operation keys 4, the operation keys 4, that is, the electrodes 6a of the electrostatic sensor 6 operate collectively, and the output signals are controlled from the three electrodes 6a. It will be sent to the unit 11.

  That is, since it is extremely difficult to collectively operate the three operation keys 4 by the input operation by the operator, the combination of 3 of the 23 electrodes 6a of the electrostatic sensor 6 which is not assumed at the time of the input operation. The number of electrodes 6a operates.

  And the control part 11 which received the output signal from the three electrodes 6a of the combination which is not assumed at the time of input operation is a closed state with both the housings 2 and 3 closed based on the program memorize | stored in the memory 10. Determine that there is.

  Therefore, according to the mobile phone 1A of the present embodiment, the same effects as those of the mobile phone 1 of the first embodiment described above can be obtained.

  6 and 7 show a third embodiment of the electronic apparatus according to the present invention. FIG. 6 is a schematic front view of the main part in the opened state of the housing, and FIG. 7 is a rear view of FIG. is there.

  A mobile phone 1B of the present embodiment includes a first housing 2 having an input operation surface 2a shown in the lower part of FIGS. 6 and 7, and a second housing 3 having a display surface 3a shown in the upper part of FIGS. And have. Both casings 2 and 3 can be angularly displaced by an opening / closing mechanism such as a biaxial hinge (not shown) on one side in the longitudinal direction shown in the vertical direction in FIGS. On the other hand, the second casing 3 is connected so that it can be opened and closed by turning it upside down. In the closed state where both the casings 2 and 3 are folded, the input operation surface 2a of the first casing 2 and the second casing 3 are connected to each other. A first closed state in which the display surface 3a of the housing 3 faces, and an input operation surface 2a of the first housing 2 and a back surface 3b located on the opposite side of the display surface 3a of the second housing 3; Are formed so as to be able to selectively take a second closed state facing each other.

  Conductive members 8B having different patterns are disposed on both the front and back surfaces of the second casing 3.

  As shown in FIG. 6, one of the conductive members 8B disposed on the display surface 3a of the second housing 3 has a horizontally long elliptical shape, similar to the conductive member 8A of the mobile phone 1A of the second embodiment described above. And is disposed in the lower portion of the display screen 7a of the display surface 3a. The first casing is in a first closed state in which both housings 2 and 3 are folded so that the input operation surface 2a and the display surface 3a face each other. The first conductive member 8Ba used for detection is used.

  As shown in FIG. 7, the other conductive member 8B disposed on the back surface 3b of the second housing 3 is formed in a vertically long elliptical shape and disposed on each of the lower portions on both sides in the left-right direction in FIG. The second conductive member 8Bb used for detection of the second closed state in which the housings 2 and 3 are folded so that the input operation surface 2a and the back surface 3b face each other.

  That is, in the mobile phone 1B of the present embodiment, the second casing 3 is formed so as to be openable and closable with respect to the first casing 2 so as to be openable and closable. In addition, conductive members 8B capable of operating a combination of electrodes 6a that are not assumed during an input operation among the plurality of electrodes 6a serving as the input detection units of the electrostatic sensor 6 are arranged in different patterns.

  The memory 10 (see FIG. 2) of the control unit 11 (see FIG. 2) stores a program for determining the state of the device based on at least the pattern of the output signal from the electrode 6a of the electrostatic sensor 6, a call Various data and programs such as data and programs necessary for executing communication and the like are stored.

  As a program for determining the state of the apparatus based on the pattern of the output signal from the electrostatic sensor 6, a program for determining the open / closed state of both housings 2 and 3 can be exemplified.

  As a specific example, when there is no output signal from the electrostatic sensor 6, it is determined that both housings 2 and 3 are opened, and the pattern of the output signal from the electrostatic sensor 6 is the first or In the case of a pattern formed (operated) by one of the second conductive members 8Ba and 8Bb, that is, when a preset one that can be operated by the first conductive member 8Ba of the plurality of electrodes 6a is operated. Is determined to be in the first closed state in which the housings 2 and 3 are folded so that the input operation surface 2a and the display surface 3a face each other, and the second conductive member of the plurality of electrodes 6a is determined. When a preset one that can be operated by 8Bb is operated, it is determined that the two housings 2 and 3 are folded so that the input operation surface 2a and the back surface 3b face each other. Things can be illustrated.

  Since other configurations are the same as those of the mobile phone 1 of the first embodiment described above, the same or corresponding configurations as those of the mobile phone 1 of the first embodiment described above are denoted by the same reference numerals in the drawings. Detailed description thereof will be omitted.

  According to the cellular phone 1B of the present embodiment having such a configuration, as shown in FIGS. 6 and 7, when the operation key 4 is not operated in the open state of both the casings 2 and 3, the second casing is provided. Regardless of the front and back of the display surface 3 a of the body 3, no output signal is output from all the electrodes 6 a of the electrostatic sensor 6, so that the control unit 11 is configured based on the programs stored in the memory 10. It can be determined that 3 is in the opened state.

  Further, when the operator does not use the cellular phone 1B, the operator folds both the casings 2 and 3 so that the input operation surface 2a and the display surface 3a face each other, 1 is in the open state. In the first closed state of the housings 2 and 3, as shown in FIG. 8, the first conductive member 8Ba and the portion shown by the two-dot chain line in FIG. A total of three operation keys 4 that oppose each other or in total, in the present embodiment, as indicated by the hatched area in FIG. 8, one second key above the second operation keys 4B. The first conductive member 8Ba approaches the operation key 4B and the upper two third operation keys 4C among the four third operation keys 4C. When the first conductive member 8Ba approaches the three operation keys 4, the operation keys 4, that is, the electrodes 6a of the electrostatic sensor 6, operate collectively, and the respective outputs from the three electrodes 6a. A signal is sent to the control unit 11.

  That is, since it is extremely difficult to collectively operate the three operation keys 4 by the input operation by the operator, the combination of 3 of the 23 electrodes 6a of the electrostatic sensor 6 which is not assumed at the time of the input operation. The number of electrodes 6a operates.

  And the control part 11 which received the output signal from the three electrodes 6a of the combination which is not assumed at the time of input operation makes the input operation surface 2a and the display surface 3a oppose based on the program memorize | stored in the memory 10. It is determined that the housings 2 and 3 are in the first closed state.

  Further, for example, the operator folds the housings 2 and 3 so that the input operation surface 2a and the back surface 3b face each other, and sets the housings 2 and 3 in the second closed state. In the second closed state of the housings 2 and 3, as shown in FIG. 9, 2 indicated by a two-dot chain line in FIG. 9 disposed on the back surface 3b of the total 23 operation keys 4. A total of four operation keys 4 that partially or completely face each of the second conductive members 8Bb. In this embodiment, as shown by the hatched area in FIG. 9, the four third operation keys 4C The second conductive member 8Bb approaches. When the second conductive member 8Bb approaches each third operation key 4C, each third operation key 4, that is, the electrode 6a of the electrostatic sensor 6 operates in a lump, and each of the four electrodes 6a An output signal is sent to the control unit 11.

  That is, since it is extremely difficult to collectively operate all the third operation keys 4C by the input operation by the operator, a combination that is not assumed at the time of the input operation among the 23 electrodes 6a of the electrostatic sensor 6 is obtained. Four electrodes 6a operate.

  And the control part 11 which received the output signal from four electrodes 6a of the combination which is not assumed at the time of input operation is based on the program memorize | stored in the memory 10, so that the input operation surface 2a and the back surface 3b may oppose. It is determined that the two cases 2 and 3 are in the second closed state.

  In addition, since the first closed state and the second closed state can be determined, the state of the device in the closed state, that is, the determination of the front and back of the second casing 3 with respect to the first casing 2 is performed. It can be done easily.

  That is, according to the mobile phone 1B of the present embodiment, at least when there is no output signal from the electrostatic sensor 6, it is determined that both the housings 2 and 3 are open, and the electrostatic sensor 6 When the pattern of the output signal is a pattern formed by the conductive member 8B of either the first or second conductive member 8Ba, 8Bb, it is determined that the casings 2 and 3 are in the closed state. In addition, it is possible to determine which of the front and back surfaces of the second housing 3 is opposed to the first housing 2.

  Therefore, according to the mobile phone 1B of the present embodiment, the same effects as those of the mobile phone 1 of the first embodiment described above can be obtained, and the state of the device in the closed state, specifically, the first housing 2 is described. It is possible to easily determine which of the front and back surfaces of the second housing 3 is facing.

  In addition, this invention is not limited to each embodiment mentioned above, A various change is possible as needed.

Typical front view of the principal part in the open state of the housing | casing of 1st Embodiment of the electronic device which concerns on this invention. The block diagram of the principal part of 1st Embodiment of the electronic device which concerns on this invention. 1 is a schematic front view illustrating a main portion of an input operation surface in a closed state of a housing of a first embodiment of an electronic device according to the present invention. Typical front view of the principal part in the open state of the housing | casing of 2nd Embodiment of the electronic device which concerns on this invention. Typical front view which permeate | transmits and shows the principal part of the input operation surface in the closed state of the housing | casing of 2nd Embodiment of the electronic device which concerns on this invention. Typical front view of the principal part in the open state of the housing | casing of 3rd Embodiment of the electronic device which concerns on this invention. Rear view of FIG. Typical front view which permeate | transmits and shows the principal part of the input operation surface in the 1st closed state of the housing | casing of 3rd Embodiment of the electronic device which concerns on this invention. Typical front view which permeate | transmits and shows the principal part of the input operation surface in the 2nd closed state of the housing | casing of 3rd Embodiment of the electronic device which concerns on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1, 1A, 1B Mobile phone 2 1st housing | casing 2a Input operation surface 3 2nd housing | casing 3a Display surface 3b Back surface 4 Operation key 4A 1st operation key 4B 2nd operation key 4C 3rd operation key 5 Input means 5a Input unit 6 Electrostatic sensor 6a Electrode 7 Display means 7a Display screen 8, 8A, 8B Conductive member 8Ba First conductive member 8Bb Second conductive member 9 CPU
10 memory 11 control unit

Claims (1)

A first housing having an input operation surface; a second housing formed to be openable / closable relative to the first housing; and a control unit that controls operation of each unit. A foldable electronic device,
The input operation surface is provided with an electrostatic sensor having a plurality of input detection units capable of outputting a signal by approaching or contacting a conductor in order to perform an information input operation .
The second casing is formed so as to be openable and closable with respect to the first casing, and a plurality of inputs of the electrostatic sensor are detected on both the front and back surfaces of the second casing. Conductive members that can operate an input detection unit of a combination that is not assumed during an input operation of the units are arranged in different patterns,
The control unit determines that both housings are in an open state when there is no output signal from the electrostatic sensor, and the pattern of the output signal from the electrostatic sensor is any of the above In the case of the pattern formed by the conductive member, it is determined that both the housings are folded and closed, and both the front and back surfaces of the second housing are opposed to the first housing. An electronic device characterized by being formed to determine whether or not

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