JP2014098641A - Display unit and watch - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a display unit and a watch which are capable of selectively causing a part of a plurality of display parts to emit colour light.SOLUTION: The display unit comprises: a dial plate 12 on which a plurality of function displays 15a reacting to ultraviolet to emit colour light are provided; a transparent rotation plate 11 which is arranged rotatably above the dial plate 12 and on a surface of which a transparent ultraviolet blocking layer 17 for blocking ultraviolet is provided excluding a selection area 18 selectively corresponding to the part of the plurality of function displays 15a; and a light-emitting element 20 emitting ultraviolet from above the transparent rotation plate 11 toward the dial plate 12. Thus, ultraviolet emitted by the light-emitting element 20 can transmit through the selection area 18 of the transparent rotation plate 11, and reach only a part of the function displays 15a corresponding to the selection area 18 among the plurality of function displays 15a.

Description

  The present invention relates to a display device used in an electronic device such as a timepiece, a mobile phone, and an automobile instrument, and a timepiece including the same.

  For example, in a timepiece, as described in Patent Document 1, a dial and a pointer are provided with a plurality of display portions that emit colored light in response to ultraviolet rays, and ultraviolet rays are emitted on the outer periphery of the dial and the pointer. Provided with a light-emitting element, ultraviolet light is emitted by this light-emitting element, and when irradiated to a plurality of display parts of the dial and pointer, each of the plurality of display parts emits colored light so that the time can be seen even in a dark place Is known.

JP 2003-248447 A

  However, in such a watch, when the light emitting element emits ultraviolet light and irradiates a plurality of display portions of the dial and the pointer, all the plurality of display portions emit colored light in response to the ultraviolet light. A part of the part cannot be selected to emit colored light. For this reason, when all the display units emit colored light, it is necessary to determine what the display content is, and thus there is a problem that the display content cannot be quickly known.

  The problem to be solved by the present invention is to provide a display device and a timepiece capable of selecting a part of a plurality of display units to emit colored light.

  The present invention provides a display member provided with a plurality of display portions that emit colored light in response to ultraviolet light, and a transparent ultraviolet light shielding layer that is rotatably disposed above the display member and blocks ultraviolet light on the surface. A transparent rotating member provided excluding a selection region that selectively corresponds to a part of the plurality of display units, and a light emitting element that irradiates ultraviolet rays from above the transparent rotating member toward the display member It is a display device characterized by comprising.

  According to the present invention, when ultraviolet light is emitted by the light emitting element, the ultraviolet light is transmitted through the selected region of the transparent rotating member, and only a part of the plurality of display parts is irradiated with the ultraviolet light. Therefore, a part of the plurality of display portions can be selected and colored light emission can be performed.

It is an expanded sectional view of the important section showing one embodiment which applied this invention to a wristwatch. FIG. 2 is an enlarged plan view showing a watch module of the wristwatch shown in FIG. 1. FIG. 2 is an exploded plan view of the function display unit of the timepiece module shown in FIG. 2, wherein (a) is an enlarged plan view showing a dial plate having a plurality of function displays in the function display area of the function display unit; ) Is an enlarged plan view showing a transparent rotating plate of the function display section. It is an expanded sectional view in the AA arrow of the transparent rotating board shown by FIG.3 (b). 2 shows a function display section of the timepiece module shown in FIG. 2, (a) is an enlarged plan view showing a display state when the function display section is irradiated with external light, and (b) shows the function display section. It is the enlarged plan view which showed the display state when an ultraviolet-ray is irradiated.

Hereinafter, an embodiment in which the present invention is applied to a pointer type wristwatch will be described with reference to FIGS.
As shown in FIG. 1, the wristwatch includes a wristwatch case 1. A watch glass 2 is provided at the upper opening of the watch case 1, and a back cover 3 is attached to the lower portion of the watch case 1.

  In addition, a watch module 4 is provided inside the watch case 1 as shown in FIG. As shown in FIGS. 1 and 2, the timepiece module 4 includes a time display unit 5 that is a first display device that indicates and displays a time, and a function display unit 6 that is a second display device that displays a plurality of functions. It has. In this case, the timepiece module 4 includes a housing 7 disposed in the wristwatch case 1 and a timepiece movement 8 incorporated in the housing 7 as shown in FIG.

  As shown in FIGS. 1 and 2, the timepiece movement 8 is configured to move a pointer 10 described later of the time display unit 5 and to rotate a transparent rotating plate 11 described later of the function display unit 6. . The time display unit 5 serving as a first display device includes a dial 12 disposed on the housing 7, a pointer shaft 13 that is rotated by the timepiece movement 8, and a pointer 10 that moves above the dial 12 by the pointer shaft 13. And.

  In this case, as shown in FIG. 2, a plurality of time letters 14 as the first display part are provided on the upper surface of the dial 12 along the peripheral edge. Further, a through hole 12a into which the pointer shaft 13 is inserted is provided at a substantially central portion of the dial plate 12. The pointer shaft 13 has an hour hand shaft 13a of an hour hand wheel (cylinder wheel), a minute hand shaft 13b of a minute hand wheel (second wheel), and a second hand shaft 13c of a second hand wheel (fourth wheel), which are arranged on the same axis. In this state, the watch movement 8 is assembled.

  Further, as shown in FIGS. 1 and 2, the pointer shaft 13 protrudes above the dial 12 through the through hole 12 a of the dial 12 and is rotated by the timepiece movement 8 in this state. The pointer 10 has an hour hand 10a, a minute hand 10b, and a second hand 10c, and is attached to the upper part of the pointer shaft 13 that protrudes above the dial 12, respectively. That is, the hour hand 10a is attached to the upper end of the hour hand shaft 13a, the minute hand 10b is attached to the upper end of the minute hand shaft 13b, and the second hand 10c is attached to the upper end of the second hand shaft 13c.

  On the other hand, as shown in FIGS. 1 to 4, the function display unit 6, which is the second display device, includes a function display area 15 provided on the upper surface of the dial 12 disposed on the housing 7 and a watch movement 8. A rotating support shaft 16 that rotates and a transparent rotating plate 11 that rotates by being positioned above the function display area 15 of the dial 12 by the rotation support shaft 16 are provided. As shown in FIG. 3A, the function display area 15 is provided in a circular shape at a location located on the 6 o'clock side of the dial 12.

  As shown in FIG. 3A, the function display area 15 includes a plurality of function displays 15a which are second display portions such as daylight saving time (DST), alarm (ALM), radio wave incapability mark, time signal (SIG), and the like. Are arranged in an annular shape. As shown in FIGS. 1 to 3, the rotation support shaft 16 protrudes above the dial 12 through a through-hole 12 b provided in the dial 12 at the center of the function display area 15. The watch movement 8 is configured to rotate.

  Further, as shown in FIGS. 1 to 4, the transparent rotating plate 11 is a disc made of a transparent synthetic resin, and the size thereof is formed to be approximately the same as that of the function display area 15. The transparent rotating plate 11 is attached to the upper end portion of the rotation support shaft 16 whose center of rotation protrudes above the dial plate 12, and rotates above the function display area 15 as the rotation support shaft 16 rotates. It is configured as follows.

  By the way, a plurality of time characters 14 as the first display part of the time display part 5 and a plurality of function displays 15a as the second display part provided in the function display area 15 of the function display part 6 are shown in FIG. As shown in FIG. 3, it is configured to emit colored light in response to ultraviolet rays. That is, the plurality of time letters 14 and the plurality of function displays 15 a are provided by printing on the upper surface of the dial 12 an ink containing a phosphor that reacts with ultraviolet rays.

  Thereby, as shown in FIG. 2 and FIG. 3A, the plurality of time letters 14 and the plurality of function displays 15a are visible by the irradiated external light and ultraviolet rays are emitted. Even if irradiated, as shown in FIG. 2 and FIG. 3A, the phosphor reacts with the irradiated ultraviolet light to emit colored light.

  In this case, as shown in FIGS. 2 to 5, the transparent rotating plate 11 of the function display unit 6 has a transparent ultraviolet light shielding layer 17 that blocks ultraviolet rays on the surface thereof, and any of the functions of the plurality of function displays 15 a. The configuration is provided except for the selection region 18 that selectively corresponds to the display 15a. That is, the transparent ultraviolet light shielding layer 17 is a film that blocks ultraviolet light and transmits light of other wavelengths excluding ultraviolet light, and is formed on the upper surface of the rotating plate 11 by vapor deposition or printing as shown in FIG. ing.

  Thereby, as shown in FIG. 2, the transparent ultraviolet light shielding layer 17 is irradiated with ultraviolet rays from above, thereby blocking the ultraviolet rays as shown in FIG. 11, the plurality of function displays 15a positioned below 11 are not irradiated with ultraviolet rays, and the plurality of function displays 15a are configured not to emit light.

  Further, as shown in FIG. 2 and FIG. 5A, the transparent ultraviolet light shielding layer 17 transmits light of other wavelengths other than ultraviolet light in the external light when irradiated with external light from above. Thus, the plurality of function indications 15a positioned on the lower side of the transparent rotating plate 11 are irradiated with light having a wavelength other than ultraviolet light, and the plurality of function indications 15a are transparent by the irradiated light. 11 and the transparent ultraviolet light shielding layer 17 so that it can be seen from above.

  In this case, as shown in FIGS. 3 to 5, a portion where the transparent ultraviolet light shielding layer 17 is not formed on the surface of the transparent rotating plate 11 selectively corresponds to one of the plurality of function displays 15 a. It is formed as a selection region 18 to be used. The selection region 18 is formed in a light transmission region that transmits all light including ultraviolet rays. The selection area 18 is formed in a size that selectively corresponds to one of the plurality of function displays 15a.

  As a result, as shown in FIGS. 3 to 5, the selection region 18 has a plurality of functions positioned below the transparent rotating plate 11 by transmitting the ultraviolet rays when irradiated with ultraviolet rays from above. Of the display 15a, only the function display 15a corresponding to the selection area 18 is irradiated with ultraviolet rays, and only the function display 15a corresponding to the selection area 18 is emitted in color.

  In addition, as shown in FIGS. 3 to 5, when the light of other wavelengths excluding ultraviolet rays is irradiated from above the selection region 18, the selection region 18 transmits the light, so that the lower side of the transparent rotating plate 11 is transmitted. Among the plurality of function displays 15a located on the side, the function display 15a corresponding to the selection area 18 is irradiated with light of a wavelength other than ultraviolet light, and the function display 15a corresponding to the selection area 18 is irradiated with the irradiated light. It is configured to be visible from above through the transparent rotating plate 11.

  In this case, on the upper surface of the transparent ultraviolet light shielding layer 17, as shown in FIGS. 2 to 5, an instruction mark 19 for indicating the selection region 18 is provided. The instruction mark 19 is printed on the transparent ultraviolet light shielding layer 17 with ink containing a phosphor that reacts with ultraviolet rays, as with the plurality of time letters 14 and the plurality of function displays 15a.

  As a result, the indication mark 19 is configured to emit colored light when irradiated with ultraviolet rays and to be viewed when irradiated with light having a wavelength other than ultraviolet rays. For this reason, as shown in FIGS. 2 to 5, the indication mark 19 has a selection area 18 which is transparent even if the ultraviolet light shielding layer 17 and the selection area 18 are transparent or the transparent rotating plate 11 rotates. It is configured to indicate where it is.

  Incidentally, as shown in FIG. 1, a light emitting element 20 for irradiating the dial 12 and the rotating plate 11 with ultraviolet rays is provided on the inner periphery of the wristwatch case 1. In this case, a parting member 21 is provided on the upper surface of the dial 12 arranged on the housing 7 along the inner peripheral surface of the watch case 1. The parting member 21 is provided with an element housing portion 22 in which the light emitting element 20 is disposed in an open state toward the inside of the watch case 1.

  In this case, the element storage portions 22 are preferably provided at a plurality of locations on the parting member 21, for example, at a plurality of locations on the dial 12 at 2 o'clock side, 6 o'clock side, and 9 o'clock side. Thereby, as shown in FIG. 1, the light emitting element 20 is disposed in each of the plurality of element housing portions 22 of the parting member 21, and emits ultraviolet rays in this state. The dial 12 is configured to be irradiated from three directions toward the upper surface.

Next, the operation of such a wristwatch will be described.
Normally, external light enters the watch case 1 through the watch glass 2 of the watch case 1, and the incident external light is irradiated on the upper surface of the dial 12 and the upper surface of the transparent rotating plate 11. At this time, a plurality of time letters 14 which are first display portions provided on the upper surface of the dial 12 are visible from the outside of the watch case 1 through the watch glass 2 by the irradiated external light.

  The external light irradiated on the upper surface of the transparent rotating plate 11 is positioned below the transparent rotating plate 11 through the transparent ultraviolet light shielding layer 17 and the transparent selection region 18 provided on the upper surface of the rotating plate 11. All of the plurality of function displays 15a that are the second display part of the function display area 15 to be irradiated are irradiated. For this reason, as shown in FIG. 2 and FIG. 5A, all of the plurality of function displays 15a are made of a transparent rotating plate 11, a transparent ultraviolet light shielding layer 17, a transparent selection area 18, It can be seen from the outside of the watch case 1 through the watch glass 2.

  At this time, since the indication mark 19 is provided on the ultraviolet light shielding layer 17 of the transparent rotating plate 11, the indication mark 19 is also irradiated with external light. Visible from outside of Case 1. For this reason, the function mark 15a of the plurality of function displays 15a, for example, daylight saving time (DST) is instructed by the instruction mark 19.

  That is, the instruction mark 19 indicates a transparent selection area 18 provided on the transparent rotating plate 11, so that a function display 15 a corresponding to the transparent selection area 18, for example, summer time (DST) ) Is instructed. Thereby, it can be determined that the current mode of the wristwatch is the daylight saving time mode, and it can be used in the same manner as a normal wristwatch. In this case, when the transparent rotating plate 11 rotates and the indication mark 19 indicates, for example, the alarm (ALM) function display 15a among the plurality of function displays 15a, the mode of the wristwatch is the alarm (ALM). It turns out that it is a mode.

  On the other hand, when the light emitting element 20 emits light in a dark place, the upper surfaces of the dial 12 and the transparent rotating plate 11 are irradiated with ultraviolet light emitted from the light emitting element 20. At this time, all of the plurality of time letters 14 serving as the first display portion provided on the upper surface of the dial plate 12 emits colored light in response to ultraviolet rays, and therefore all of the plurality of time letters 14 that have emitted colored light emits timepiece glass. 2 through the outside of the watch case 1.

  Further, the ultraviolet light irradiated on the upper surface of the transparent rotating plate 11 is blocked by the transparent ultraviolet light shielding layer 17 on the rotating plate 11, but the ultraviolet light irradiated on the selection region 18 on the transparent rotating plate 11 is The light passes through the selection area 18 and is irradiated only on the corresponding function display 15a positioned below the selection area 18. That is, since the ultraviolet light irradiated to the transparent ultraviolet light shielding layer 17 is blocked by the transparent ultraviolet light shielding layer 17, a plurality of function displays corresponding to the ultraviolet light shielding layer 17 located under the transparent rotating plate 11. The ultraviolet rays are not irradiated to 15a, and the plurality of function displays 15a do not emit colored light.

  However, the ultraviolet rays applied to the transparent selection area 18 are transmitted through the transparent selection area 18 and the transparent rotating plate 11, and are located below the function display 15a corresponding to the selection area 18, for example, FIG. Since it is irradiated at daylight saving time (DST) shown in FIG. 5B, the function display 15a of this daylight saving time (DST) emits colored light. The function display 15a of the daylight saving time (DST) that emits colored light is visible from the outside of the watch case 1 through the transparent rotating plate 11, the transparent selection region 18, and the watch glass 2.

  At this time, since the indication mark 19 provided on the ultraviolet shielding layer 17 of the transparent rotating plate 11 is also irradiated with ultraviolet rays, the indication mark 19 also emits colored light, and the colored indication mark 19 is displayed on the watch glass. 2 through the outside of the watch case 1. Thereby, among the plurality of function displays 15a, the function display 15a that emits colored light by being irradiated with ultraviolet rays is instructed by the instruction mark 19, whereby the function of the function display 15a that the wristwatch emits colored light, such as a daylight saving time (DST) function. It turns out that it is.

  In this case, when the transparent rotating plate 11 is rotated and the instruction mark 19 indicates the alarm (ALM) function display 15a among the plurality of function displays 15a, the light emitting element 20 emits light. Ultraviolet rays pass through the selection area 18 and the transparent rotating plate 11 and are irradiated on an alarm (ALM) on the function display 15 a located below the selection area 18 and corresponding to the selection area 18.

  Then, the alarm (ALM) function display 15a emits colored light in response to ultraviolet light, and the colored light-emitting alarm (ALM) function display 15a includes the transparent rotating plate 11, the transparent selection area 18, and the watch glass 2. Through the outside of the watch case 1. Thus, it can be seen that the function of the function display 15a in which the wristwatch emits colored light, for example, an alarm (ALM) function.

  Thus, according to this wristwatch, the dial 12 provided with a plurality of function displays 15a that emit colored light in response to ultraviolet rays, and the dial 12 is rotatably arranged above the dial 12 and blocks ultraviolet rays on the surface. The transparent ultraviolet light shielding layer 17 is provided, except for the selection area 18 that selectively corresponds to a part of the plurality of function displays 15a, and the characters from above the transparent rotation board 11 are provided. By providing the light emitting element 20 that irradiates ultraviolet rays toward the plate 12, it is possible to select a part of the plurality of function displays 15a and to emit colored light.

  In other words, in this wristwatch, when the light emitting element 20 emits ultraviolet light, the ultraviolet light is transmitted only through the selection area 18 of the transparent rotating plate 11, and a part corresponding to the selection area 18 among the plurality of function displays 15a. Since only the function display 15a can be irradiated with ultraviolet rays, only a part of the function displays 15a can be selected to emit colored light. As a result, it is possible to quickly know the function selected in a dark place, which is convenient.

  In this case, when external light is irradiated from above the transparent rotating plate 11, the external light passes through the transparent ultraviolet light shielding layer 17 and the selection region 18 and is positioned below the transparent rotating plate 11. Since all of the plurality of function indications 15a are irradiated, all of the plurality of function indications 15a can be seen from above the transparent rotating plate 11 by the irradiated external light. can do.

  In this wristwatch, an instruction mark 19 for indicating the selection area 18 is provided on the upper surface of the transparent ultraviolet light shielding layer 17 provided on the transparent rotating plate 11. Any one of a plurality of function displays 15a can be instructed, whereby the function currently used can be known.

  That is, when external light is irradiated from above the transparent rotating plate 11, all of the plurality of function indications 15 a positioned below the transparent rotating plate 11 by the external light are above the transparent rotating plate 11. Even if it can be seen, it is possible to indicate which of the plurality of function displays 15a is the currently used function by the instruction mark 19, and thus the currently used function is any of the plurality of function displays 15a. You can easily know if it exists.

  In this case, the instruction mark 19 is configured to emit colored light in response to ultraviolet rays, as in the case of the plurality of function displays 15a. Therefore, when the ultraviolet rays emitted from the light emitting element 20 are irradiated, the indication marks 19 emit colored light and are selected. The currently used function is determined by the colored light emission of the instruction mark 19 and the colored light emission of a part of the function display 15a corresponding to the selected area 18 among the plurality of function displays 15a. It is possible to know more easily and accurately.

  In this wristwatch, the dial 12 is positioned on the upper surface of the dial 12 at the 6 o'clock side in the region of the plurality of time letters 14 as the first display portion provided along the peripheral edge thereof. And a plurality of function displays 15a that are second display portions provided in the function display area 15 at a location, and the transparent rotating plate 11 is disposed corresponding to the upper side of the plurality of function displays 15a that are second display portions. As a result, the time can be known by the plurality of time characters 14 as the first display section, and the function display 15a as the second display section can know which function is selected. Can do.

  In the above-described embodiment, the case where the indication mark 19 is formed so as to emit colored light in response to ultraviolet rays has been described. However, the present invention is not limited to this. For example, phosphors that emit light in response to ultraviolet rays are used. You may form with the ink which does not contain.

  If comprised in this way, when external light is irradiated, all the several function display 15a will be visible from the upper direction through the transparent ultraviolet-ray shielding layer 17 and the selection area | region 18, and the function display part 15a corresponding to the selection area | region 18 will be shown. Is indicated by the instruction mark 19 and when the ultraviolet ray is irradiated, the instruction mark 19 is not visible because it does not emit colored light, but only the function display section 15a corresponding to the selected area 18 among the plurality of function display sections 15a. Since the colored light is emitted, only the function display 15a emitting the colored light can be seen.

  In the above-described embodiment, the case where the second display device is applied to the function display unit 6 having the plurality of function displays 15a has been described. However, the function display unit 6 is not necessarily required, and a figure, pattern, or picture is not necessarily required. The present invention can also be applied to a display that selects and displays a graphic display such as.

  Furthermore, in the above-described embodiments, the case where the present invention is applied to a wristwatch has been described. In addition, it is not always necessary to be a watch, and can be widely applied to electronic devices such as mobile phones and automobile meters.

As mentioned above, although one Embodiment of this invention was described, this invention is not restricted to this, The invention described in the claim and its equal range are included.
The invention described in the claims of the present application will be appended below.

(Appendix)
According to the first aspect of the present invention, there is provided a display member provided with a plurality of display portions that emit colored light in response to ultraviolet rays, and a transparent ultraviolet ray that is rotatably disposed above the display member and blocks ultraviolet rays on the surface. A light-shielding layer irradiates ultraviolet light toward the display member from above the transparent rotary member provided except for a selection region that selectively corresponds to a part of the plurality of display portions. And a light-emitting element.

  According to a second aspect of the present invention, in the display device according to the first aspect, an instruction mark for indicating the selection area is provided on the upper surface of the transparent ultraviolet light shielding layer. It is a display device.

  According to a third aspect of the present invention, in the display device according to the second aspect, when the plurality of display units are irradiated with external light from above the transparent ultraviolet light shielding layer, the plurality of display units All are visible through the transparent ultraviolet light shielding layer and the selection area, and the display portion corresponding to the selection area is indicated by the instruction mark, and when ultraviolet rays are irradiated from above the transparent ultraviolet light shielding layer, Of the plurality of display units, only the display unit corresponding to the selected region appears to emit colored light.

  Invention of Claim 4 is the display apparatus in any one of Claims 1-3. WHEREIN: These display parts are the 1st display part provided along the peripheral part of the said display member, And a second display section provided in a predetermined area within the area of the first display section, and the rotating member is disposed corresponding to the upper side of the second display section. It is a display device.

  A fifth aspect of the present invention is a timepiece including the display device according to the first to fourth aspects.

  According to a sixth aspect of the present invention, in the timepiece according to the fifth aspect, the display member of the display device is a dial plate, and the first display portion is a plurality provided along a peripheral portion of the dial plate. The second display unit is a time display having a plurality of function displays provided in a predetermined region within the region of the first display unit.

DESCRIPTION OF SYMBOLS 1 Watch case 2 Watch glass 4 Watch module 5 Time display part 6 Function display part 8 Clock movement 10 Pointer 11 Transparent rotating board 12 Dial 14 Multiple time letters 15 Function display area 15a Multiple function display 17 Transparent ultraviolet light shielding layer 18 Transparent selection area 19 Instruction mark 20 Light emitting element

Claims (6)

A display member provided with a plurality of display portions that emit colored light in response to ultraviolet rays;
A transparent ultraviolet light shielding layer that is rotatably arranged above the display member and blocks ultraviolet rays on the surface is provided except for a selection region that selectively corresponds to a part of the plurality of display portions. A rotating member;
A light emitting element that emits ultraviolet rays toward the display member from above the transparent rotating member;
A display device comprising:   2. The display device according to claim 1, wherein an instruction mark for indicating the selected area is provided on an upper surface of the transparent ultraviolet light shielding layer.   3. The display device according to claim 2, wherein when the external light is irradiated from above the transparent ultraviolet light shielding layer, the plurality of display parts are all made of the transparent ultraviolet light shielding layer and the transparent ultraviolet light shielding layer. The display portion that is visible through the selection region and that corresponds to the selection region is indicated by the instruction mark, and when the ultraviolet rays are irradiated from above the transparent ultraviolet light shielding layer, of the plurality of display portions, A display device characterized in that only a display unit corresponding to a selected region appears to emit colored light.   4. The display device according to claim 1, wherein the plurality of display units include a first display unit provided along a peripheral edge of the display member, and an area of the first display unit. And a second display portion provided in a predetermined region of the display device, wherein the rotating member is arranged corresponding to the upper side of the second display portion.   A timepiece comprising the display device according to claim 1. 6. The timepiece according to claim 5, wherein the display member of the display device is a dial plate, the first display unit is a plurality of time letters provided along a peripheral portion of the dial plate, and the second display unit. A timepiece wherein the display unit is a plurality of function displays provided in a predetermined area within the area of the first display unit.

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