JP3064406B2 - Electronic clock - Google Patents

Description

Description: TECHNICAL FIELD OF THE INVENTION The present invention relates to an electronic timepiece, and particularly to a multi-functional watch through a display window provided on a dial plate of the pointer display unit in addition to the pointer display unit. The electronic timepiece is also provided with a visible electro-optical display device, which is suitable for an electronic timepiece on which various data are displayed.

[Prior art and its problems] In recent years, in order to increase the functionality of a pointer-type electronic timepiece, an electro-optical display device such as a liquid crystal display device is provided, and a date, an alarm time, and a measurement when used as a stopwatch. Devices that switch and display time, schedule information, telephone number information, and the like are in practical use.

By the way, when the date and alarm time are displayed on the electro-optical display device, a four-digit display surface is sufficient. However, measurement information as a stopwatch requires a display surface of six or more digits. Information and telephone number information require a display surface of at least 10 digits. Therefore, when all of these data are switched and displayed on one electro-optical display device, the display surface must necessarily be large, but the display surface must be large and the number of digits must be small. For example, when a date or the like is displayed on the display, there are many blank portions on the display surface, which makes it extremely difficult to see and deteriorates the appearance.

In addition, the display surface of the electro-optical display device as described above is exposed even when information is not displayed, but this generally impairs the overall appearance.

[Objects of the Invention] The inventions of claims (1) and (2) are all made in view of the above-mentioned circumstances, and include information having a smaller number of digits than can be displayed on an electro-optical display device. It is an object of the present invention to provide an electronic timepiece in which the display is easy to see and the design is good, and the overall appearance is not impaired even when no information is displayed on the electro-optical display device.

[Summary of the Invention] The inventions of claims (1) and (2) are intended to achieve the above object by removing a blank portion where no information is displayed on the display surface of the electro-optical display device. The gist is that the shutter plate is automatically covered.

[Examples] Next, each of the above inventions will be specifically described based on examples shown in the drawings.

FIG. 1 shows the appearance of the present embodiment. That is, a hand indicator 3 covered with a watch glass 2 is provided on the front surface of the watch case 1. The hand 3 has an hour hand 4, a minute hand 5, a second hand 6, and a dial 7. I have. In addition, the dial 7 has an arc-shaped opening having a center angle of 120 ° around the center of rotation of the hands, that is, a display window 7a.
A liquid crystal display panel 10 that allows the entire surface to be seen is provided inside the display window 7a via the display window 7a. As shown by a dotted line in the figure, a disk-shaped shutter plate 8 that rotates about the center of rotation of the hands is provided at a position behind the dial 7 and in front of the liquid crystal display panel 10. When the shutter plate 8 rotates, the dial plate 7 is attached to the shutter plate 8.
A shutter window second opening 9b which overlaps with the display window 7a of the shutter plate and exposes the entire liquid crystal display panel 10; and a lower portion of the liquid crystal display panel 10 which is located 120 ° from the center position of the shutter plate first opening 9a. A shutter plate first opening 9a exposing only a part of the portion is formed.

Also, four push button switches S _A are provided on the side of the watch case 1.
To _SD and a band mounting portion 11 are provided.

The surface of the shutter plate 8 has the same color tone as the surface of the dial 7, and as shown in FIG. 1, when the shutter plate 8 covers the display window 7a, the display window 7a is closed. It does not recognize the existence at all.

FIG. 2 shows a main part of the analog movement in the watch case 1. This analog movement moves the hour hand 4, minute hand 5 and second hand 6 to indicate the time, and is composed of a train wheel mechanism 15 and a shutter opening / closing device 16. That is, the wheel train mechanism 15 is driven by a pointer driving step motor (not shown) to move the hands, and the fourth wheel & pinion 19 is rotatable between the main plate 17 and the wheel train receiver 18. Attached and the axis of this fourth wheel 19
The center wheel & pinion 20 is rotatably attached to 19a, and the hour wheel & pinion 21 is rotatably mounted on the cylinder shaft 20a of the center wheel & pinion 20 on the main plate 17. In this case, the fourth wheel 19 moves the second hand 6, and its shaft 19a protrudes above the main plate 17, the second hand 6 is attached to the protruding tip, and the rotation of the step motor is controlled by an intermediate wheel (not shown). Through the second hand 6
To move the hands. The center wheel 20 moves the minute hand 5, and its cylindrical shaft 20a protrudes above the main plate 17, the minute hand 5 is attached to the protruding tip, and the rotation of the fourth wheel 19 is performed by a third wheel (not shown). ) To move the minute hand 5.
The hour wheel 21 moves the hour hand 4, and the hour hand 4 is attached to the upper end of the hour axis 21a. The rotation of the center wheel & pinion 20 is transmitted via a Hino minute wheel (not shown). Move the hour hand 4.

The shutter opening / closing device 16 rotates the shutter plate 8 and includes a shutter driving step motor 22 and a wheel train mechanism 23 attached to the base plate 17. Wheel train mechanism
Reference numeral 23 denotes a first gear 23a that meshes with the rotor pinion 24 of the shutter driving step motor 22, a second gear 23b fixed to the shaft of the first gear 23a, and a rotatable mount 17a on the projection 17a of the base plate 17. The third gear 23c meshes with the second gear 23b.

On the other hand, a dial 7 is fixed on the base plate 17, a shutter plate 8 is rotatably disposed below the dial 7, and a liquid crystal display is disposed below the shutter plate 8. Panel 10 is arranged. The dial 7 has an hour wheel at its center.
A through hole 7b into which the 21 cylindrical shaft 21a is inserted is formed, and a display window 7a having the same shape as the second opening 9b of the shutter plate and overlapping the same is formed as described above. The shutter plate 8 covers the liquid crystal display panel 10 and closes the display window 7a of the dial 7 so as to be openable and closable as described above. The shutter plate 8 has a disk shape and has a mounting portion 17b of the ground plate 17 at its center. A through hole 8a to be inserted is formed, and a shutter plate first opening 9a and a shutter plate second opening 9b shown in FIG. 1 are formed. Near the outer periphery of the lower surface of the shutter plate 8, an internal gear
8b is provided, and this internal gear 8b meshes with the third gear 23c described above. Therefore, the shutter drive step motor 22
When this rotates, this rotation is the rotor kana 24, the first gear
23a, the second gear 23b, the third gear 23c, and the internal gear 8b are transmitted, the shutter plate 8 rotates, and the display window 7a of the dial 7 is opened and closed with the rotation of the shutter plate 8. .

FIG. 3 shows an arrangement state of display bodies in the above-described liquid crystal display panel 10. The exposed portion 10a surrounded by a dashed line in FIG. 5 is provided when the shutter plate second opening 9b overlaps the display window 7a due to the rotation of the shutter plate 8.
This is a portion that can be seen through the display window 7a and the shutter plate second opening 9b. In the upper part 10b of the exposed part 10a,
A seven-segment display for eight digits is provided, and a lower part 10c is provided with eight dot matrix displays for displaying 8 × 8 dots.

FIG. 4 shows a circuit configuration of the present embodiment. That is, the present embodiment has a configuration in which another circuit unit is connected to the CPU 30 as a center. The CPU 30 is a circuit that processes and processes the transmitted data, sends the data, and sends signals to each circuit unit to control them.

The oscillation circuit 31 is a circuit that constantly sends out a signal of a constant frequency. The frequency dividing circuit 32 is a circuit section which divides the signal from the oscillation circuit 31 to a predetermined frequency and sends it to the clock circuit 33 and the motor driving circuit. Total clock circuit
A circuit 33 counts signals from the frequency dividing circuit 32 to obtain a current time T and a date D of the current day, and sends them to the CPU 30.

The motor drive circuit 34 obtains a signal from the frequency divider 32,
This is a circuit for driving a step motor 35. The step motor 35 is driven by a motor drive circuit 34 to rotate and apply a rotational force to the hands 36 via the wheel train mechanism 15 to move the hands 36.

The RAM 38 is a circuit unit that is controlled by the CPU 30 to store data from the CPU 30 and sends the stored data to the CPU 30. The switch section 39 is provided with the above-mentioned push button switches S _{A to} S _D
And a circuit unit that sends a corresponding switch input signal to the CPU 30 when any of them is operated. The sound notification device 40 is a circuit unit that receives a signal from the CPU 30 and generates an alarm sound.

The motor drive circuit 41 is a circuit that receives a signal from the CPU 30 and rotates the shutter drive step motor 22 by a predetermined angle each time. The rotation of the shutter drive step motor 22 is performed via the train wheel mechanism 23. Then, it is given to the shutter plate 8 to rotate the shutter plate 8. In this case, the shutter plate 8 rotates by 6 ° (ie, 360 ° / 60 steps) every time a signal is sent from the CPU 30. The display drive circuit 42 receives the display start signal DS from the CPU 30.
To start the driving and display the data from the CPU 30 on the liquid crystal display panel 10 of the digital display unit 43.
This circuit stops the operation upon receiving the display stop signal DE from 0.

FIG. 5 shows the configuration of the RAM 38. The mode register M is a register for designating the mode. When 0 is set, the display window 7a is closed by the shutter plate 8, and the clock mode for displaying the current time is indicated by only the hands 36, and 1 is set. Is set, a date display mode in which only the date is displayed at the center of the lower portion 10c of the liquid crystal display panel 10 and the date is displayed through the first opening 9a of the shutter plate is designated, and 2 is set. At this time, a schedule display mode in which schedule information stored in a schedule storage unit SK, which will be described later, is displayed on the liquid crystal display panel 10 so that the schedule information can be viewed through the shutter plate second opening 9b is designated, and 3 is set. The date and the current time are displayed on the right half of the liquid crystal display panel 10 and the date and time display mode in which the left half of the liquid crystal display panel 10 is closed by the shutter plate 8 is designated. . When any of the schedule information stored in the schedule storage unit SK described below is displayed on the liquid crystal display panel 10, the register P is a register that specifies what to be displayed by the row address of the schedule storage unit SK. The position register S _R is a register in which a step value indicating the rotational position of the shutter plate 8 is set. The step value is determined when the left end of the shutter plate second opening 9b is at the 4 o'clock position with the right end of the liquid crystal display panel 10. When the shutter plate 8 is in contact (position as shown in FIG. 1 described above), it is 0, and thereafter, it is increased by 1 every time the shutter plate 8 rotates 6 ° in the counterclockwise direction.

Schedule storage unit SK consists 20 rows where the row address M ₁ ~M ₂₀ are given respectively, each row, the date of one schedule, the time, date area DA for storing messages each time area TA, the message It is composed of an area MA and is stored in ascending order of schedule date and time, starting from the smallest row address.

Operation Next, the operation of the present embodiment configured as described above will be described.

FIG. 6 is a general flowchart showing an outline of the operation of this embodiment. That is, in step S1, it is checked whether or not there is a switch input. When there is a switch input, the corresponding switch process (step S2) is executed, and when there is no switch input, directly,
Proceed to the alarm processing in step S3. In the alarm process, it is checked whether any of the schedules stored in the schedule storage unit SK has reached the scheduled time based on the date D from the clock counting circuit 33 and the current time T.
When it is reached, the shutter plate 8 is rotated to bring the second opening 9b of the shutter plate below the display window 7a, the liquid crystal display panel 10 is fully opened, and the schedule contents are displayed on the liquid crystal display panel 10. At the same time, a signal is sent to the sound notification device 40 to generate an alarm sound for a fixed time. Then step
In S4, a value other than 0 is set in the mode register M, and it is determined whether the mode is other than the clock mode. When the mode is not the clock mode, display processing for displaying various data on the liquid crystal display panel 10 ( After performing step S5),
In the clock mode, the process directly returns to step S1, and thereafter, the same operation is repeated.

FIG. 7 is a flowchart showing the switch processing (step S2) in detail, and FIG. 8 is a flowchart showing the display processing (step S5) in detail.
Hereinafter, operations in various states will be described.

For example, now, in the mode register M is 0 is set, a watch mode, and 0 is set in the position register S _R, the positional relationship between the display window portion 7a and the shutter plate 8 Figure 9 (a ), And the entire display window 7a is closed by the shutter plate 8. In this case, unless there is a switch operation, the fact is confirmed in step S1, and the above-described alarm processing (step S3) is performed. Then, in step S4, 0 is set in the mode register M, that is, the clock mode is set. Is determined, and the operation of returning to step S1 is repeated.

When the mode is switched from the clock mode to the date display mode, the push button switch S _A is operated. At this time, upon receiving the operation, the process proceeds from step S1 to step S2, that is, the switch processing of FIG. _A
Is detected, and the value of the mode register M is increased by one, that is, 1 to set the date display mode (step S11). Next, it is determined that the value of the mode register M is not already 0, that is, it is not in the clock mode (step S12), and the display start signal DS is sent to the display drive circuit 42 to switch the liquid crystal display panel 10 of the digital display unit 43. The display is enabled (step S13). Then, in step S14,
It is determined that the value of the mode register M does not exceed 3, and the process proceeds to step S17, where a signal is sent to the motor drive circuit 41 to rotate the shutter drive step motor 22 by one step. At this time, the rotation is performed from the rotor pinion 24 of the shutter drive step motor 22 to the wheel train mechanism 23, that is, the first gear 23a, the second gear 23b, and the third gear 23 shown in FIG.
c, the internal gear 8b is transmitted to the shutter plate 8 for one step (6
゜) Only rotate counterclockwise. Then in order to store the rotational position register S value of _R only one greater That is, in this case of the shutter plate 8 1 (step S1
8), it is determined that not yet reached the value of the position register S _R is 60 (step S19), already the mode register M
Is not 0, that is, it is determined that the watch mode is no longer in operation (step S21), and then step S23
Proceed to. In step S23, it is determined that the value of the mode register M is set to the date display mode at 1, then it is determined that the value of the position register S _R is not reached yet 20 (step S24), and the step Return to S17. Hereinafter, the same operation as described above, repeated until the value of the position register S _R becomes 20 (step S17 to S19, S21, S23, S24), position register S _R shutter plate 8 watch mode the value reaches 20 Then, the shutter plate 8 is rotated by 120 ° so that the shutter plate first opening 9a of the shutter plate 8 comes to the center of the display window 7a to expose the center of the lower portion 10c of the liquid crystal display panel 10, and FIG. b)
Is reached in step S24, this is detected in step S24, and the switch process is terminated. Then, step S3 in FIG.
That is, the process proceeds to step S4 after the alarm processing, and here, it is determined that the value of the mode register M is not 0 and it is in a mode other than the clock mode, and the process proceeds to step S5.
That is, the process proceeds to the display process of FIG. And step
In S40, it is determined that the value of the mode register M is 1, and the date of the day is displayed in the center two digits of the lower part 10c of the liquid crystal display panel 10 (step S41), and the process returns to step S1. For example, when the date of the day is five days, the display on the liquid crystal display panel 10 is as shown in FIG. 9 (b).

It converts the mode to the schedule display mode from the date display mode, when checking cents schedule stored in the schedule storage unit SK further operating the push button switch S _A. In this case, the operation is detected in step S10 of FIG. 7, and the value of the mode register M is increased by 1 to 2 to set the schedule display mode (step S10).
S11), it is determined that the value of the mode register M is not 0 (step S12), the liquid crystal display panel 10 is set to a displayable state (step S13), and it is determined that the value of the mode register M has not exceeded 3 yet. (Step S14) A signal is sent to the motor drive circuit 41 to output the shutter drive step motor 22
The driven by one step to rotate the shutter plate 8 by one step (step S17), the value of the position register S _R in order to store the fact shall one greater (step S1
8), it is determined that not yet become position register S value of _R 60 in the step S19, that the value of the mode register M in step S25 through step S21, S23 is in the schedule display mode 2 Judge, then position register
Step sure that the value of S _R does not reach the 40
Return to S17. Hereinafter, repeated until the same operation as described above is the value of the position register S _R becomes 40 (step S17 to S19, S21, S2
3, S25, S26). Then, the value is 40 next position register S _R, than when the shutter plate 8 of the date display mode, further, rotated by 120 °, the shutter plate second opening portion 9b of the shutter plate 8, the display window LCD panel with 7a
When the entire surface of 10 has been exposed (see FIG. 9 (c)), it is detected in step S26, and step S26 in FIG.
Proceed to 3. After the same alarm process is completed in step S3, it is confirmed that the value of the mode register M is not 0 and the mode is not the clock mode (step S4), and the process proceeds to the display process (step S5). Step S after S40
At 42, it is determined that the mode is set to the schedule display mode when the value of the mode register M is 2, and the schedule date (SD) of the schedule in the schedule storage unit SK specified by the register P is stored in the upper part 10b of the liquid crystal display panel 10. And the schedule time (ST) are displayed (step S43),
Further, a message (SM) related to the schedule is displayed on the lower part 10c of the liquid crystal display panel 10 (step S4).
Four). For example, if the schedule specified by the register P is a meeting starting at 2:00 on July 5, the display on the liquid crystal display panel 10 is as shown in FIG. 9 (c).

Further, in the schedule display mode, each schedule stored in the schedule storage unit SK, successively, when confirming St. displayed on the liquid crystal display panel 10, continue to operate the push button switch S _B. At this time, every time the operation is performed, it is detected in step S30 of FIG. 7, and it is determined that 2 is set in the mode register M and the schedule mode is set (step S31). Are sequentially increased by 1 from 1 to 20 (steps S32 to S34), and the value of step S in FIG.
3, proceed to the display processing via S4, steps S40, S42
Then, the process proceeds to steps S43 and S44, and the date, time, and message of the schedule newly designated by the register P are displayed on the liquid crystal display panel 10.

To switch the mode to the date display mode from the schedule display mode is to operate the push button switch S _A. At this time, the operation is detected in step S10 of FIG. 7, the value of the mode register M is set to 3 which is larger by 1 (step S11), and after step S12, the liquid crystal display panel 10 is brought into a displayable state in step S13. After confirming that the value of M does not exceed 3, the process proceeds to step S17. Then, in the step S17, sends a signal to the motor drive circuit 41 to rotate the shutter drive stepping motor 22 by one step, the value of the position register S _R in order to store the fact shall one greater (step S18 ), still the value of the position register S _R in step S19, it is determined that no reached 60,
Determines that the steps S21, S23, the value of the position register S _R S25 through in step S27 is not set to 50, the step
Return to S17. Hereinafter, repeated until the same operation as described above is the value of the position register S _R becomes 50 (step 17~S9, S21, S23,
S25, S27). The value 50 next position register S _R, than when the shutter plate 8 of the schedule display mode,
It is further rotated by 60 °, and the shutter plate 8 rotates the display window.
When the left half of 7a is closed and only the right half of the liquid crystal display panel 10 is exposed (see FIG. 9 (d)), it is detected in the above step S27, and step S3 in FIG. , S
After step 4, the process proceeds to the display process (step S5), and step S40,
After S42, in step S45, the upper part 10 of the liquid crystal display panel 10
b In the right half, the date D and the current time T of the same day from the clock counting circuit 33 are displayed. For example, 10:00 on July 5
When the time is 10 minutes, the liquid crystal display panel 10 is shown in FIG.
Is displayed.

Also, the return from the date display mode to the above-described watch mode further operating the push button switch S _A. in this case,
The operation is detected in step S10, the value of the mode register M is increased by 1 to 4 (step S11), and it is determined that the value of the mode register M is not 0 (step S1).
2) It is determined that the value of the mode register M is 4 and exceeds 3 (step S14), and then 0 is set in the mode register M to set the watch mode (step S1).
5) A display stop signal DE is sent to the display drive circuit 42 to stop the display operation of the liquid crystal display panel 10 (step S1).
6). Thereafter, a signal is sent to the motor drive circuit 41 to drive the shutter drive step motor 22 by one step to rotate the shutter plate 8 by one step (step S1).
7), it is determined that the value of the position register S _R in order to store the fact shall one greater (step S18), and yet the value of the position register S _R in step S19 is not set to 60, already mode register It is determined that M is set to 0 and the watch mode is set (step S21). Determine further not yet become position register S value of _R 0 (step S22), and returns to step S17 thereon, less the value of the position register S _R is the above-described operation is repeated until the 60 (step S17-S19, S21, S20). The value 60 next position register S _R, than when the shutter plate 8 of the date and time display mode, further, the liquid crystal display panel 10 the entire surface of the display window portion 7a is closed by the shutter plate 8 is rotated by 60 ° when the disappeared, it was detected in step S19, the value of the position register S _R to 0 (step S20), the mode register M
It determines that the value is in the watch mode 0 (step S21), and determines that the value of the position register S _R is returned to 0 (step S22), and after step S3 in FIG. 6 In step S4, it is determined that the value of the mode register M is 0 and the watch mode is set, and the process returns to step S1 without proceeding to the display process. Thus, the display window 7a and the shutter plate 8
Shutter plate first opening 9a and shutter plate second opening 9a
The positional relationship of 9b is as shown in FIG.
7a is closed by the shutter plate 8, and the liquid crystal display panel 10 is completely invisible.

The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the present invention.
For example, in the present embodiment, the liquid crystal display panel 10 can be displayed in two stages, upper and lower, but this is displayed only in one stage, and the length of the portion where the display window 7a is opened by the shutter plate 8 is set. Of course, it may be made to change. In this embodiment, the shutter plate 8 is rotatably attached to the center of rotation of the hands. However, when the diameter of the shutter plate 8 is small, the center of rotation does not need to be the center of rotation of the hands.
Needless to say, the shutter plate may be provided so as to be movable in the horizontal direction.

[Effects of the Invention] The present invention relates to an electronic timepiece in which information is not displayed on a display surface of an electro-optical display device and a blank portion is automatically covered with a shutter plate. Therefore, even when displaying information having a smaller number of digits than the number of digits that can be displayed on the electro-optical display device, the display is easy to see and the design is good, and furthermore, any information is displayed on the electro-optical display device. This makes it possible to provide an electronic timepiece whose overall appearance is not impaired even when it is not displayed.

[Brief description of the drawings]

FIG. 1 is a view showing the appearance of one embodiment of the present invention, FIG. 2 is a cross-sectional view of a main part of the above embodiment, and FIG. 3 shows a display arrangement state of the liquid crystal display panel of the above embodiment. FIG. 4 is a diagram showing a circuit configuration, FIG. 5 is a diagram showing a configuration of the RAM in FIG. 4, FIG. 6 is a general flowchart showing an outline of the operation of the embodiment, and FIG. 6 is a flowchart showing the switch processing in detail, FIG. 8 is a flowchart showing the display processing in FIG. 6 in detail, and FIG. 9 is a diagram showing the transition of opening and closing of the display window. 1 ... watch case, 2 ... watch glass, 3 ... pointer display, 4 ... hour hand, 5 ... minute hand, 6 ... second hand, 7 ... dial, 7a ... display window, 8 ... Shutter plate 8b Internal gear 9a Shutter plate first opening 9b Shutter plate second opening 10 Liquid crystal display panel 10a Exposed portion 10b
…… upper part, 10c …… lower part, 15, 23 …… wheel train mechanism, 16
…… Shutter opening / closing device, 17 …… Main plate, 17a …… Protrusion, 18
… Wheel train receiver, 19… fourth wheel, 19a …… shaft, 20… second wheel, 20a, 21a …… tube shaft, 21 …… hour wheel, 22 …… shutter drive step motor, 23a… ... First gear, 23b ... Second gear, 23c ... Third gear, 24 ... Rotor, 30 ... CPU,
31… oscillator circuit, 32… divider circuit, 33… counter clock circuit, 34… motor drive circuit, 35… step motor, 36
…… Pointers, 38… RAM, 41 …… Motor drive circuit, 42 ……
Display drive circuit, DS ...... display start signal, DE ...... display stop signal, M ...... mode register, P ...... register, SK ...... schedule storage unit, S _R ...... location register, DA ...... date area, TA …… Time area, MA …… Message area.

Continuation of front page (58) Field surveyed (Int.Cl. ⁷ , DB name) G04C 3/00 G04G 5/04 G04G 9/00

Claims (2)

(57) [Claims] 1. A dial having an arc-shaped display window formed symmetrically with respect to a line connecting 12: 6 o'clock, and a hand driving a pointer on the dial by a stepping motor to indicate time. A device, an electro-optical display device having a plurality of displays provided below a display window formed on the dial, and provided rotatably around a rotation center of the hands,
A display window portion formed on the dial plate, the shielding portion covering a portion of the plurality of display members of the electro-optical display device exposed from the display window portion except for a predetermined number of display members at the center; A shutter plate rotatable to a first position that opens all of the above and a second position that covers a portion of the display window except for the predetermined number of display bodies at the center; and a first data and a first data Circuit means for obtaining second data of a predetermined number having a small number of digits; switch means for displaying the first and second data obtained by the circuit means on the electro-optical display device; The shutter plate is moved to the first position when the first data is displayed on the electro-optical display device in conjunction with the means, and the second data is displayed on the electro-optical display device. Move the shutter plate to the second position. Electronic timepiece comprising; and a shutter plate moving control plate. 2. A dial having an arcuate display window formed symmetrically with respect to a line connecting 12: 6 o'clock, and a hand driving a pointer on the dial by a stepping motor to indicate the time. A device, an electro-optical display device having a plurality of displays provided below a display window formed on the dial, and provided rotatably around a rotation center of the hands,
A first shielding portion that covers all of the plurality of displays of the electro-optical display device exposed from the display window, and a second that covers a portion of the plurality of displays excluding a predetermined number of displays at the center. A first position that opens all of the display windows formed on the dial, a second position that covers a portion of the display unit window excluding the predetermined number of display bodies, and A shutter plate rotatable to a third position covering all of the display window; circuit means for obtaining first data and second data of a predetermined digit having a smaller number of digits than the first data; Switch means for erasing the display of the optical display device, and displaying the first and second data obtained by the circuit means on the electro-optical display device; and When the first data is displayed on the dynamic display device, Moving the shutter plate to the first position; moving the shutter plate to the second position when the second data is displayed on the electro-optical display device; An electronic timepiece comprising: a shutter plate movement control plate that moves the shutter plate to the third position when a display on a display device is erased.