JP2011041125A - Electronic equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a digital camera in which an opening/closing angle for detecting the opening/closing state of a display unit is differentiated depending on a state in which a display part is inward and a state in which it is outward without increasing the number of components. <P>SOLUTION: Two magnets 5a and 5b of the same shape, size and magnetic force are arranged at positions offset from a rotary shaft C2 inside the display unit 2, and a distance E between a magnetic sensor 6 and one magnet 5a when turning the display part 2a inward to a camera body and closing the display unit 2 and a distance F between the magnetic sensor 6 and the other magnet 5b when turning the display part 2a outward to the camera body and closing the display unit 2 are made different. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an electronic device such as a digital camera, a video camera, and a mobile phone in which a movable unit having a liquid crystal display unit and the like is supported so as to be openable and closable with respect to the device body.

  In electronic devices such as digital cameras and video cameras, a display unit having a display unit such as a liquid crystal display is supported so as to be openable and closable with respect to the device body, and the display unit is supported so as to be rotatable in an open state. This makes it possible to easily shoot at various angles.

  In addition, such an electronic device switches the display such as reversing the image displayed on the display unit up and down, left and right, and turns on and off depending on the open / closed state and rotation state of the display unit. I try not to.

  In recent years, detection of the open / closed state of the display unit with respect to the device main body is performed using a magnet and a magnetic sensor because it can save space in a non-contact manner (Patent Document 1).

JP 2005-295288 A

  By the way, detection of the open / closed state of the display unit with respect to the device main body is performed, for example, by detecting a magnetic field of a magnet built in the display unit with a magnetic sensor built in the device main body. In addition, the rotation state of the display unit when the display unit is rotated in the open state is also detected by a predetermined rotation detection unit, and the output signal of the magnetic sensor and the output signal of the rotation detection unit are mounted on the main board or the like. Supplied to the controller.

  The control unit determines the open / closed state of the display unit based on the output signal of the magnetic sensor, and based on the output signal of the rotation detection means, the display unit of the display unit is in an inward state or outward direction with respect to the device body. It is judged whether it is in the state.

  The control unit turns on the display unit when the display unit is in an open state with the display unit facing inward with respect to the device body, and turns on the display unit when the display unit is in a closed state. Turns off. In addition, the control unit displays whether the display unit of the display unit is outward or inward with respect to the device body, or the display unit is open so that the image displayed on the display unit is the same The orientation of the image displayed on the display unit is changed according to whether the image is in the closed state. For example, when the open / close axis of the display unit is in the vertical direction, when the display unit is open with respect to the device body, the display unit is compared with the open state with the display unit facing inward. Then, the image on the display unit is turned upside down. Also, when the open / close axis of the display unit is in the vertical direction, when the display unit's display part is facing outward with respect to the device body, and when the display unit is closed, it is compared with the open state with the display part facing inward. Then, the image of the display unit that is inverted up and down is inverted left and right.

  By the way, it is desirable to turn on and off the display unit in a state where the opening / closing angle from the closed state of the display unit is relatively large from the viewpoint of energy saving of the device. On the other hand, it is more convenient for the user to switch the inversion of the image on the display unit in a state where the opening / closing angle from the closed state of the display unit is relatively small.

  However, in Patent Document 1, the open / close angle for detecting the open / closed state of the display unit is the same regardless of whether the display unit of the display unit is inward or outward with respect to the device body. For this reason, it is difficult to realize the energy saving of the apparatus mentioned above and the improvement of a user's usability.

  Therefore, an object of the present invention is to provide an electronic apparatus that can vary the opening / closing angle for detecting the open / closed state of the movable part when the display unit is inward and outward.

  In order to achieve the above object, an electronic device of the present invention is provided with a device main body and a display unit, is supported to be openable and closable with respect to the device main body, and is centered on a rotation axis orthogonal to the opening and closing axis. A supported movable part that is rotatably supported, and a rotation detection unit that detects whether the rotation state of the movable part is an inward state or an outward state with respect to the device body; and And a control unit that switches a display form of the display unit according to an open / closed state of the movable unit, wherein the control unit is detected when the state detected by the rotation detection unit is an inward state. The opening / closing angle of the movable part that switches the display form of the display part is made different between when the display is in the outward state.

  ADVANTAGE OF THE INVENTION According to this invention, the electronic device which can vary the opening-and-closing angle which detects the opening-and-closing state of a movable part in the state in which the display part is inward and outward is provided.

1 is an external perspective view of a digital camera that is a first embodiment of an electronic apparatus according to the present invention. 1 is an external perspective view of a digital camera that is a first embodiment of an electronic apparatus according to the present invention. It is a rear view of the digital camera which is 1st Embodiment of the electronic device which concerns on this invention. (A) is the KK sectional view taken on the line of FIG. 3, (b) is sectional drawing which shows the state which turned the display part of the display unit outward with respect to (a). It is a figure for demonstrating the example of control of the display part by the control part based on the HIGH / LOW signal output from a magnetic sensor, and the OFF / ON signal output from a micro switch. It is a rear view of the digital camera which is 2nd Embodiment of the electronic device which concerns on this invention. (A) is the MM sectional view taken on the line of FIG. 6, (b) is sectional drawing which shows the state which turned the display part of the display unit outward with respect to (a). It is a rear view of the digital camera which is 3rd Embodiment of the electronic device which concerns on this invention. (A) is the MM sectional view taken on the line of FIG. 8, (b) is sectional drawing which shows the state which turned the display part of the display unit outward with respect to (a).

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(First embodiment)
1 and 2 are external perspective views of a digital camera which is a first embodiment of an electronic apparatus according to the present invention.

  As shown in FIGS. 1 and 2, the digital camera according to the present embodiment has a hinge unit that includes a display unit 2 having a display unit 2a such as a liquid crystal display on the back surface of a camera body 1 that is an example of a device body of the present invention. It is supported so as to be openable and closable in the range of 0 ° to about 180 ° around the opening / closing axis C1. The display unit 2 corresponds to an example of a movable part of the present invention, and is housed in a recess formed in a rear cover 3 disposed on the back side of the camera body 1 in a closed state (opening / closing angle 0 °).

  Further, in the fully open state (opening / closing angle of about 180 °), the display unit 2 is positive with respect to the camera body 1 around the rotation axis C2 (see FIG. 1C) of the hinge mechanism orthogonal to the opening / closing axis C1. Are supported so as to be rotatable in a range of about 180 ° to the negative side and about 90 ° on the negative side.

  The rear cover 3 is formed of a nonmagnetic or weakly magnetic member. The front cover 4 disposed on the front side of the camera body 1 is formed by subjecting an aluminum plate material to pressing or drawing.

  Next, an example of detecting the open / close state of the display unit 2 and an example of detecting the rotation state of the display unit 2 will be described with reference to FIGS. 3 is a rear view of the digital camera of the present embodiment, FIG. 4A is a cross-sectional view taken along the line KK of FIG. 3, and FIG. 4B is a display unit 2a of the display unit 2 with respect to FIG. It is sectional drawing which shows the state which turned outward.

   First, an example of detecting the open / closed state of the display unit 2 will be described. As shown in FIG. 3, the end of the display unit 2 on the side of the open / close axis C1 is a rectangular parallelepiped having the same shape, size, and the same magnetic force. Magnets 5a and 5b are built apart from each other in the axial direction of the opening / closing axis C1.

  The reason for using the two magnets 5a and 5b is that the display unit 2 is closed with the display unit 2a facing inward (the direction facing the rear cover 3), and the display unit 2 with the display unit 2a facing outward. This is because the magnetic sensor 6 detects two closed states in the case of closing. That is, when the display unit 2 is closed with the display unit 2a facing inward and when the display unit 2 is closed with the display unit 2a facing outward, one of the magnets 5a and 5b disposed at two locations is magnetic. It faces the sensor 6.

  A magnetic sensor 6 is built in the rear cover 3. The magnetic sensor 6 includes a Hall IC that detects a change in the magnetic field in the vertical direction, and when the display unit 2 is closed with the display unit 2a facing inward, the magnet 5a faces and the display unit 2a faces outward. Thus, when the display unit 2 is closed, the magnet 5b is arranged at a facing position.

  The magnetic sensor 6 is mounted on a flexible printed circuit board (FPC), and a signal from the magnetic sensor 6 is output to a control unit of a main substrate (not shown) through wiring of the flexible printed circuit board. The flexible printed circuit board is positioned and fixed to the nonmagnetic chassis with high accuracy. The magnetic sensor 6 outputs a HIGH signal when the magnetic fields of the magnets 5a and 5b approach, and outputs a LOW signal when the magnetic fields of the magnets 5a and 5b move away.

  That is, a HIGH signal is output if the magnetic flux density of the magnetic fields of the magnets 5a and 5b is greater than a predetermined threshold value, and a LOW signal is output if the magnetic field density is less than the threshold value. The control unit determines the open / closed state of the display unit 2 based on the output signal of the magnetic sensor 6, and determines whether the display unit of the display unit is inward with respect to the device body based on the output signal of the rotation detecting means. Judge whether the orientation. And a control part switches the display form of the display part 2 so that it may mention later based on said two determination results.

    On the other hand, the rotation state of the display unit 2 is detected by a contact-type microswitch (not shown) which is an example of the rotation detection means of the present invention. The micro switch outputs an ON signal when the display unit 2 is rotated about 180 ° (see FIG. 2B) around the rotation axis C2 from the fully opened state (FIG. 1C).

  Based on the HIGH / LOW signal output from the magnetic sensor 6 and the OFF / ON signal output from the microswitch, the control unit mounted on the main board turns on the display unit 2a as shown in FIG. , Turn off, display control of upside down / left side upside down of the image.

  Next, a display control example of the display unit 2a by the control unit based on the HIGH / LOW signal output from the magnetic sensor 6 and the OFF / ON signal output from the microswitch will be described with reference to FIG.

  In the initial state, as shown in FIG. 1A, the display unit 2 is housed in the recess of the rear cover 3 of the camera body 1 with the display portion 2a facing inward (opening / closing angle 0 °). At this time, the magnetic sensor 6 detects the magnetic field of the magnet 5a and outputs a HIGH signal to the control unit, and the micro switch outputs an OFF signal to the control unit. Then, the control unit controls the display unit 2a to be turned off based on the HIGH signal from the magnetic sensor 6 and the OFF signal from the micro switch. Therefore, nothing is displayed on the display unit 2a.

  Next, as shown in FIG. 1B, when the display unit 2 is opened around the opening / closing axis C1, the magnet 5a in the display unit 2 is separated from the magnetic sensor 6, so that the magnetic sensor 6 has the magnet 5a. The LOW signal is output to the control unit.

  Based on the LOW signal from the magnetic sensor 6 and the OFF signal from the microswitch, the control unit turns on the display unit 2a and forms an image on an image sensor such as a CCD sensor through a photographing optical system (not shown). The displayed image is displayed on the display unit 2a. Accordingly, as shown in FIG. 1C, the user can easily catch the subject while viewing the image displayed on the display unit 2a in the state where the display unit 2 is fully opened (opening / closing angle is about 180 °). Can do.

  Here, as described above, the display unit 2 can rotate in the range of about 180 ° on the + side and about 90 ° on the − side about the rotation axis C2. Therefore, by rotating the display unit 2 from the state shown in FIG. 1C to the state shown in FIG. 1D or FIG. 2A, the subject can be easily picked up even during high-angle shooting or low-angle shooting. Can be caught.

  Next, when the display unit 2 is rotated approximately 180 ° from the state of FIG. 1C to the + side (see FIG. 2B), an ON signal is output from the microswitch to the control unit. And a control part reverses the upper and lower sides of the image displayed on the display part 2a based on the LOW signal from the magnetic sensor 6, and the ON signal from a micro switch. In this state, since the display unit 2a faces the front side of the camera body 1, it is suitable for photographing itself (self-photographing).

  When the display unit 2 is closed from the state of FIG. 2B to the state of FIG. 2C, the magnetic sensor 6 detects the magnetic field of the magnet 5b and outputs a HIGH signal to the control unit. And a control part reverses the right and left of the image displayed on the display part 2a based on the HIGH signal from the magnetic sensor 6, and the ON signal from a micro switch.

  When the display unit 2 is further closed from the state of FIG. 2C, the display unit 2 is urged toward the rear cover 3 by the urging means provided in the hinge mechanism, and the display unit 2a is directed outward. It is housed in the recess of the rear cover 3 (see FIG. 2D). In this state, the display unit 2a faces the back side of the camera body 1, and the optical axis of the photographing optical system and the central part of the display unit 2a substantially coincide with each other, so that it is easy to track a moving subject.

  By the way, when the display unit 2 is closed, the rear cover 3 and the outer case of the display unit 2 are interposed between the magnets 5 a and 5 b and the magnetic sensor 6. In this case, since the outer case of the display unit 2 is formed of a nonmagnetic aluminum material or resin member, there is no possibility of disturbing the magnetic fields of the magnets 5a and 5b. Further, when the rear cover 3 is formed of a nonmagnetic member, there is no possibility of disturbing the magnetic fields of the magnets 5a and 5b.

  However, when the rear cover 3 is formed of a weak magnetic member, the magnets 5a and 5b magnetize the rear cover 3, disturbing the magnetic fields of the magnets 5a and 5b, and the magnetic sensor 6 erroneously opens and closes the display unit 2. There is a possibility of detection. For this reason, a weak magnetic material having almost no coercive force (Hc) is used so that the rear cover 3 is not magnetized, or the thickness of the portion sandwiched between the magnets 5a, 5b and the magnetic sensor 6 of the rear cover 3 is reduced. Thus, the magnetic fields of the magnets 5a and 5b are not disturbed. As for other members in the vicinity of the magnetic sensor 6, it is desirable to use nonmagnetic members so as not to disturb the magnetic fields of the magnets 5a and 5b.

  Next, the opening / closing angle of the display unit 2 when the display unit 2a of the display unit 2 is turned on or off will be described in detail with reference to FIG.

  FIG. 4A shows a state in which the display unit 2 is opened or closed with the display unit 2a facing inward.

  The opening / closing angle A in the figure is an angle of the display unit 2 when the display unit 2a is switched on and off. When the display unit 2 is opened from the closed state, when the opening / closing angle of the display unit exceeds the opening / closing angle A, the output of the magnetic sensor 6 is switched from HIGH to LOW, and the display unit 2a is switched from the OFF state to the ON state. Transition.

  On the contrary, when the display unit is closed from the open state, when the opening / closing angle of the display unit exceeds the opening / closing angle A, the output of the magnetic sensor 6 is switched from LOW to HIGH, and the display unit 2a is turned on. Transition to the off state.

  Here, when the display unit 2 is opened from the closed state, the output A of the magnetic sensor 6 is switched from HIGH to LOW, and when the display unit 2 is closed from the opened state, the output of the magnetic sensor 6 is switched from LOW to HIGH. The opening / closing angle A may be shifted by about 2 to 3 °. This is because if both the opening and closing angles A are exactly the same, when the display unit 2 is stopped at that angle, chattering that repeatedly turns on and off the display unit 2a occurs. In the following description, for the sake of convenience, both opening and closing angles A are described as being the same.

  The magnet 5a disposed in the display unit 2 is disposed at a position closer to the magnetic sensor 6 than the rotation axis C2 of the display unit 2 in a state where the display unit 2 is closed with the display unit 2a facing inward. Assuming that the distance from the magnetic sensor 6 to the magnet 5a at this time is distance E, and the distance in a state where the display unit 2 is closed with the display unit 2a facing outward as will be described later is distance F, distance E <distance F The relationship holds.

  By disposing the magnet 5a in this way, the distance from the magnetic sensor 6 to the opposing magnet is shorter in the closed state with the display unit 2a facing inward than in the closed state with the outward direction. That is, the opening / closing angle required for the magnet facing the magnetic sensor 6 to move away from the detection range of the magnetic sensor 6 is larger in the closed state with the display unit 2a facing inward than in the closed state with the outward facing. For this reason, when the opening / closing operation is performed with the display portion 2a facing inward, the opening / closing angle A for switching the display portion 2a between turning off and on is displayed, and when the opening / closing operation is performed with the display portion 2a described later facing outward, It becomes possible to make it larger than the opening / closing angle B to be reversed left and right.

  Thereby, when operating the display unit 2 in the opening direction from the closed state with the display unit 2a facing inward, the timing at which the display unit 2a is lit can be delayed, and power saving of the camera body 1 can be achieved. This will lead to energy savings. Further, when the display unit 2 is operated from the open state to the closed state with the display unit 2a facing inward, the timing at which the display unit 2a is turned off can be advanced. Can lead to energy saving.

  Further, the display unit 2 is always urged in the closing direction by the urging means provided in the hinge mechanism in an angle range equal to or smaller than the opening / closing angle C which is a predetermined angle larger than the opening / closing angle A. The display unit 2 can be stopped at an arbitrary angle (free stop mechanism) with a predetermined sliding torque in an angle range exceeding the opening / closing angle C. That is, the opening / closing angle C is an urging start angle of the display unit 2 by the urging means of the hinge mechanism.

  Further, by making the opening / closing angle C larger than the opening / closing angle A, the display unit 2 is always urged in the closing direction by the urging means of the hinge mechanism within the range of the opening / closing angle A where the display unit 2a is turned off. . Therefore, even if the user carelessly operates the display unit 2 to open the closed display unit 2, if the opening / closing angle is equal to or smaller than the predetermined angle, the display unit 2a is automatically returned to the closed state and the display unit 2a is not turned on. Can be.

  FIG. 4B shows a state in which the display unit 2 is opened or closed with the display unit 2a facing outward.

  The opening / closing angle B in the figure is an angle of the display unit 2 when the image of the display unit 2b is reversed left and right. When the display unit 2 is opened from the closed state, the output of the magnetic sensor 6 is switched from HIGH to LOW when the opening / closing angle B is exceeded, and the image of the display unit 2a is released from the horizontally reversed state and returned to the normal state. And transition.

  On the contrary, when the display unit 2 is closed from the open state, the output of the magnetic sensor 6 is switched from LOW to HIGH when the opening / closing angle B is exceeded, and the image on the display unit 2a is reversed from the normal state to the left-right reversed state. Transition to.

  The opening / closing angle B at which the output of the magnetic sensor 6 switches from HIGH to LOW when the display unit 2 is opened from the closed state, and the opening / closing at which the output of the magnetic sensor 6 switches from LOW to HIGH when the display unit 2 is closed from the opened state. The angle B may be shifted by about 2 to 3 °.

  The magnet 5b disposed in the display unit 2 is disposed at a position separated from the magnetic sensor 6 from the rotation axis C2 of the display unit 2 in a state where the display unit 2 is closed with the display unit 2a facing outward. . It can be seen that the distance F from the magnetic sensor 6 to the magnet 5b at this time is longer than the distance E in FIG.

  By disposing the magnet 5b in this way, the distance from the magnetic sensor 6 to the opposing magnet 5 is longer in the closed state with the display unit 2a facing outward than in the closed state with the inward direction. That is, the opening / closing angle required for the magnet facing the magnetic sensor 6 to move away from the detection range of the magnetic sensor 6 is smaller when the display unit 2a is closed outward and closed than when the display unit 2a is closed inward.

  Therefore, the opening / closing angle B that reverses the display image when the opening / closing operation is performed with the display unit 2a facing outward is turned off and turned on when the opening / closing operation is performed with the display unit 2a facing inward. It becomes possible to make it smaller than the opening / closing angle A to be switched. For the user, the switching of the horizontal reversal of the image displayed on the display unit 2a is less likely to be uncomfortable as the display unit 2 is as close as possible to the closed state (opening / closing angle 0 °). This improves the usability of the user.

  By the way, if the opening / closing angle B is within the angle range of the free stop mechanism exceeding the bias start angle C, the display unit 2 moves with a slight impact when the user decides the composition at the time of shooting, and the image of the display unit 2a. Flips left and right. However, in this embodiment, since the opening / closing angle B is smaller than the opening / closing angle A, it becomes smaller than the bias start angle C by the biasing means of the hinge mechanism, and such a problem does not occur.

  As described above, in the present embodiment, the magnet 5a disposed in the display unit 2 is more than the rotation axis C2 of the display unit 2 when the display unit 2 is closed with the display unit 2a facing inward. It is arranged at a position close to the magnetic sensor 6. Further, the magnet 5b arranged in the display unit 2 is arranged at a position farther from the magnetic sensor 6 than the rotation axis C2 of the display unit 2 when the display unit 2 is closed with the display unit 2a facing outward. Is done. Thereby, the open / close angles A and B for detecting the open / closed state of the display unit 2 can be made different between the inward state and the outward state of the display unit 2a, and energy saving and user convenience can be improved. it can. Further, since it is not necessary to add a new sensor or the like, it is possible to avoid an increase in cost and to reduce the size of the device.

  In the present embodiment, the open / closed state of the display unit 2 is detected when the display unit 2a is inward and outward by using two magnets 5a and 5b having the same shape and size and the same magnetic force. Although the opening and closing angles to be changed are different, it is not limited to this. For example, the display unit 2 can detect the open / closed state of the display unit 2 in an inward state and an outward state by changing the shapes of the two magnets 5a and 5b or by changing the type of the magnetic material. It is possible to vary the opening / closing angle. By using magnets having the same shape, size and the same magnetic force as the magnets 5a and 5b, there is no problem even if a magnet to be used as the magnet 5b is mistakenly placed at the position of the magnet 5a at the time of assembly. Defects can be prevented.

(Second Embodiment)
Next, a digital camera which is a second embodiment of the electronic apparatus according to the invention will be described with reference to FIGS. 6 is a rear view of a digital camera which is a second embodiment of the electronic apparatus according to the present invention, FIG. 7A is a cross-sectional view taken along line MM of FIG. 6, and FIG. 7B is FIG. It is sectional drawing which shows the state which turned the display part 2a of the display unit 2 outward. In addition, about the part which overlaps or corresponds to the said 1st Embodiment, the same code | symbol is attached | subjected to each figure and the description is abbreviate | omitted.

  In the present embodiment, using one magnet 5 and one magnetic sensor 6, an opening / closing angle A for detecting the opening / closing state of the display unit 2 with the display unit 2a facing inward, and the display unit 2a facing outward Thus, the opening / closing angle B for detecting the opening / closing state of the display unit 2 is changed.

  The magnetic sensor 6 is disposed in the camera body 1 and includes two Hall elements that respectively detect the S pole and the N pole of the magnet 5 disposed in the display unit 2. Similar to the first embodiment, the magnetic sensor 6 can detect the vertical magnetic field of the magnet 5, and outputs one signal regardless of the pole when detecting the N pole and the S pole. .

  As shown in FIG. 7A, in a state where the display unit 2 is closed with the display unit 2a facing inward, the magnet 5 is disposed at a position closer to the magnetic sensor 6 than the rotation axis C2 of the display unit 2. . The distance from the magnetic sensor 6 to the magnet 5 at this time is a distance E, and the pole of the magnet facing the magnetic sensor 6 is an N pole.

  On the contrary, as shown in FIG. 7B, in a state where the display unit 2 is closed with the display unit 2a facing outward, the magnet 5 is separated from the magnetic sensor 6 from the rotation axis C2 of the display unit 2. Placed in position. At this time, the distance from the magnetic sensor 6 to the magnet 5 is a distance F longer than the distance E in FIG. 7A, and the pole of the magnet facing the magnetic sensor 6 is the S pole.

  Thereby, without increasing the number of parts, the open / close angles A and B for detecting the open / closed state of the display unit 2 in the inward state and the outward state of the display unit 2a can be made different. Usability can be improved. Other configurations and operational effects are the same as those of the first embodiment.

(Third embodiment)
Next, a digital camera which is a third embodiment of the electronic apparatus according to the invention will be described with reference to FIGS. 8 is a rear view of a digital camera which is a third embodiment of the electronic apparatus according to the present invention, FIG. 9A is a cross-sectional view taken along line MM of FIG. 8, and FIG. 9B is FIG. It is sectional drawing which shows the state which turned the display part 2a of the display unit 2 outward. In addition, about the part which overlaps or corresponds to the said 1st Embodiment, the same code | symbol is attached | subjected to each figure and the description is abbreviate | omitted.

  In the present embodiment, using one magnet 5 and one magnetic sensor 6, an opening / closing angle A for detecting the opening / closing state of the display unit 2 with the display unit 2a facing inward, and the display unit 2a facing outward Thus, the opening / closing angle B for detecting the opening / closing state of the display unit 2 is changed.

  The magnetic sensor 6 is disposed in the camera body 1 and includes two Hall elements that detect a vertical magnetic field. The two Hall elements detect the magnetic field generated by the magnet 5 arranged in the display unit 2 using different threshold values.

  In the present embodiment, the magnetic sensor 6 includes, for example, a first Hall element having a threshold value of 3 mT and a second Hall element having a threshold value of 8 mT, and the magnetic flux density of the detected magnetic field exceeds each threshold value. A HIGH signal is output to the control unit, and a LOW signal is output below the threshold.

  In this case, when the OFF signal is output from the micro switch that detects the rotation state of the display unit 2 (when the display unit 2a is inward), the control unit selects the first Hall element having a threshold value of 3 mT. And operate. In addition, when an ON signal is output from the micro switch (when the display unit 2a faces outward), the control unit selects and operates the second Hall element having a threshold value of 8 mT.

  In this embodiment, as shown in FIGS. 9A and 9B, the magnet 5 is in the closed state of the display unit 2 regardless of whether the display unit 2a is inward or outward. The display unit 2 is disposed at substantially the same position as the rotation axis C2.

  Here, when the display unit 2a is facing inward, an OFF signal is output from the microswitch, so that the control unit outputs the first Hall element (threshold value) having the smaller threshold value out of the two Hall elements of the magnetic sensor 6. 3mT) is activated.

  Then, when the display unit 2 is gradually opened from the closed state and the magnet 5 is moved away from the magnetic sensor 6 and the magnetic flux density of the magnetic field detected by the first Hall element becomes a threshold value of 3 mT or less, the control unit opens the display unit 2a. Switch from off to on. Further, the control unit closes the display unit 2a when the display unit 2 is gradually closed from the open state, the magnet 5 approaches the magnetic sensor 6, and the magnetic flux density of the magnetic field detected by the first Hall element exceeds the threshold value 3mT. Switch from on to off.

  As a result, when the opening / closing operation is performed with the display portion 2a facing inward, the opening / closing angle A for switching the display portion 2a between turning off and on can be made larger than when using another Hall element having a large threshold value. Become.

  Next, as shown in FIG. 9B, when the display unit 2 a is facing outward, an ON signal is output from the microswitch, so that the control unit has a threshold value of the two Hall elements of the magnetic sensor 6. A large second Hall element (threshold 8 mT) is activated.

  Then, when the display unit 2 is gradually opened from the closed state and the magnet 5 is moved away from the magnetic sensor 6 and the threshold value of the magnetic field detected by the second Hall element becomes a threshold value of 8 mT or less, the image of the display unit 2a is displayed. Is switched from the horizontally reversed state to the normal state. In addition, when the display unit 2 is gradually closed from the open state and the magnet 5 approaches the magnetic sensor 6 and the threshold value of the magnetic field detected by the second Hall element exceeds the threshold value 8 mT, the control unit displays an image on the display unit 2a. Is switched from the normal state to the horizontally reversed state.

  This makes it possible to make the opening / closing angle B for reversing the display image left and right when the opening / closing operation is performed with the display unit 2a facing outwards smaller than when using another Hall element having a small threshold value.

  As described above, in this embodiment, the opening / closing angles A and B for detecting the opening / closing state of the display unit 2 can be made different between the inward state and the outward state without increasing the number of parts. Therefore, energy saving and user convenience can be improved. Other configurations and operational effects are the same as those of the first embodiment.

  The configuration of the present invention is not limited to those exemplified in the above embodiments, and the material, shape, dimensions, form, number, arrangement location, and the like are appropriately changed without departing from the gist of the present invention. Is possible.

  For example, in the above embodiment, the Hall IC is exemplified as the magnetic sensor 6, but a magnetic sensor such as a GMR sensor may be used.

  In the above embodiment, the case where the rotation state of the display unit 2 around the rotation axis C2 is detected by the contact type micro switch is exemplified. However, the rotation state of the display unit 2 is detected using, for example, a magnet and a magnetic sensor. You may make it detect.

  Further, in each of the above embodiments, the magnets 5 a, 5 b, 5 disposed on one of the camera body 1 and the display unit 2 are disposed on the display unit 2, and the magnetic sensor 6 disposed on the other is disposed on the camera body 1. However, these arrangements may be reversed.

DESCRIPTION OF SYMBOLS 1 Camera body 2 Display unit 2a Display part 5 Magnet 5a Magnet 5b Magnet 6 Magnetic sensor

Claims (6)

The device body,
A movable portion that is provided so as to be openable and closable with respect to the device main body provided with a display unit, and that is rotatably supported around a rotation axis orthogonal to the opening and closing axis;
Rotation detecting means for detecting whether the rotation state of the movable part is an inward state or an outward state with respect to the device main body,
Control means for switching the display form of the display unit according to the open / closed state of the movable unit,
The control unit is configured to switch the display form of the display unit between a case where the state detected by the rotation detection unit is an inward state and a case where the detected state is an outward state. An electronic device characterized by having different opening and closing angles.   When the state detected by the rotation detecting unit is an inward state, the control unit is configured to switch the display form of the display unit than when the detected state is an outward state. The electronic device according to claim 1, wherein an opening / closing angle is increased. A magnet disposed on one of the device body and the movable part;
A magnetic sensor that is disposed on the other of the device body and the movable part and detects the magnetic field of the magnet,
When the magnetic flux density of the magnetic field detected by the magnetic sensor is greater than a predetermined threshold, the control means determines that the movable part is in a closed state with respect to the device body, and is equal to or lower than the predetermined threshold. In the case of determining that the movable part is in an open state with respect to the device main body, if there is a change in the determination result, the display form of the display unit is switched,
The magnet has a shorter distance to the magnetic sensor when the display unit is inward with respect to the device body and the movable unit is closed than when the movable unit is closed with the display unit facing outward. The electronic apparatus according to claim 2, wherein the electronic apparatus is arranged as described above.   The magnet has a position facing the magnetic sensor with the display unit facing inward with respect to the device main body and the movable unit being closed, and the magnetic sensor with the movable unit being closed with the display unit facing outward. The electronic apparatus according to claim 3, wherein the electronic apparatus is disposed at two positions facing each other. A magnet disposed on one of the device body and the movable part;
A magnetic sensor that is disposed on the other of the device body and the movable part and detects the magnetic field of the magnet,
When the magnetic flux density of the magnetic field detected by the magnetic sensor is greater than a predetermined threshold, the control means determines that the movable part is in a closed state with respect to the device body, and is equal to or lower than the predetermined threshold. In this case, it is determined that the movable unit is in an open state with respect to the device main body, and when the determination result is changed, the display form of the display unit is switched, and the display unit is directed inward with respect to the device main body. 3. The electronic apparatus according to claim 2, wherein the predetermined threshold value is made smaller in a state in which the movable portion is closed than in a state in which the movable portion is closed outward. An urging means for urging the movable part in a closing direction with respect to the device main body when an opening / closing angle of the movable part becomes a predetermined angle or less;
2. The control unit according to claim 1, wherein an opening / closing angle of the movable unit that switches a display form of the display unit is made smaller than the predetermined angle at which the biasing unit starts biasing the movable unit. The electronic device of any one of thru | or 5.