JP2003043175A - Display device having operation knob - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a display device capable of improving operability without being seized by restriction on design. SOLUTION: An opening 5a is formed in a transparent operation panel 5, and a transparent operation button 6a is supported in the opening 5a by an elastic support member 11. A projection 14 and an elastic projection 15 are oppositely arranged on the elastic support member 11, and when pushing the operation button 6a, the elastic projection 15 gets over the projection 14 while pressing the projection 14 so that the click touch is generated. A display panel arranged on the back face side of the operation button 6a and a transparent electrode substrate 4 controls so as to change the operation button 6a and the surrounding graphics according to an operation mode, and controls a graphic display visually confirmable when changing the operation mode to improve the operability.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display device mounted on a vehicle-mounted device or the like, and more particularly to a display device in which the display of an operating knob and its surrounding display change at any time according to mode switching.

[0002]

2. Description of the Related Art In-vehicle electronic devices are provided with a display section and various operation knobs on an operation panel called a nose on the front surface of a case. FIG. 13 is a front view showing an internal structure of an operation panel in an electronic device provided with a conventional display device.

In this electronic device 50, a circuit board 53 having a thin display panel 52 mounted on the front surface of a case 51 is provided. The circuit board 53 is further provided with a switch element 54 for detecting the operation of an operation knob provided on the operation panel and a lamp 55 for illuminating the operation knob.

[0004]

The conventional electronic device 5 described above.
0, the circuit board 53 for the purpose of improving operability at night.
A lamp 55 is provided on the top, and the lamp 55 illuminates the operation knob to improve the visibility. However, since the operation instruction display such as symbols and numbers provided on the surface of the operation knob is printed or engraved on each operation knob in advance, this operation instruction display can be changed depending on the operation mode at any time. It cannot be changed. Therefore, it is difficult to cope with the diversification of modes.

Further, although the electronic device 50 of this type can perform various displays by the display panel 52, the display panel 52 is arranged so as not to overlap the switch element 54 and the operation knob for operating the switch element 54. The display area where the display panel 52 is provided and the operation knob are located apart from each other.

Therefore, the area of the display area of the display panel 52 is limited, and it is difficult to visually check the display contents. Further, the display on the display panel 52 and the illumination of the operation knob cannot be associated with each other, and it is not possible to unify and change the appearance of the entire front surface of the operation panel according to the switching of the operation mode. It is possible.

The present invention solves the above-mentioned conventional problems, and the display contents of the operation knob and its surroundings can be changed at any time without being restricted by design.
Another object of the present invention is to provide a display device capable of uniformly changing the display in a wide area on the front surface of the operation panel.

[0008]

In the display device of the present invention, a transparent operation knob is attached to an operation panel so that it can be operated from the outside, and a detection means which is operated by the operation knob is provided behind the operation knob. A transparent member is provided, and a display panel is provided behind the transparent member, and by changing the display content of the display panel, the color of the operation knob when viewed from the outside, the operation instruction display A control unit for changing at least one of the patterns is provided.

Preferably, the operation panel is transparent at least in an area surrounding the operation knob, and when the display content of the display panel is changed, the operation knob and its peripheral area are colored, an operation instruction display, and a pattern. At least one of them changes together, and more preferably,
The operation panel is provided with a plurality of the operation knobs,
The operation panel is transparent in a predetermined area including at least a plurality of the operation knobs, and at least one of the colors, operation instruction displays, and patterns of the plurality of operation knobs and the areas changes together.

Further, the operation panel is provided with a display area separated from the operation knob, the operation panel has a transparent display area, and when the display content of the display panel is changed, At least one of the color of the operation knob, the operation instruction display, and the pattern may change together with the display content in the display area.

For example, in the operation panel, the area in which the operation knob is provided and the display area are continuously transparent. However, a non-transparent region may be provided in a part of the operation panel.

The operation knob is a push button type, the operation knob inserted into the opening of the operation panel is supported by a transparent elastic support member, and the detection means is provided when the operation knob is pressed. Having a transparent electrode in contact with, or the operation knob is rotatable, the operation knob is rotatably supported by the operation panel, the detection means, the rotation of the operation knob. It is a transparent electrode for detection.

The elastic support member for supporting the push-button type operation knob is preferably provided with an operation feeling generating means for generating an operation feeling such as a click feeling when the operation knob is pressed. As a result, it is possible to obtain a good operation feeling even though the display panel extends to the back side of the operation knob.

Further, the operation knob may be a rotary type, and the display contents of the area around the operation knob may be changed according to the rotation amount of the operation knob.

Further, a plurality of the operation knobs are provided, and when the operation mode is switched, at least one of the operation knob color, operation instruction display, and pattern necessary for operating the mode is different from other operation knobs. It may be displayed differently.

Further, according to the present invention, the control unit may control so that when the power is turned on, a graphic is gradually displayed in the surroundings from one point such as a power button.

Further, when the operation knob is operated, a wavy graphic is drawn radially from the operation knob as a base point, or a wave-like graphic from one side of the display panel (one side on the operated operation knob side) to the opposite side. The display panel may be moved to switch to the selected function display after passing the graphic.

Alternatively, the control section may control the operation knob operable according to the operation mode so as to appear by a graphic display.

By controlling the graphic displayed on the display panel as described above, the change in the graphic can be easily recognized and the visibility can be improved, so that the operability as a whole can be improved.

[0020]

1 is an exploded perspective view showing an example of a display device of the present invention, FIG. 2 is a sectional view taken along line II--II of FIG. 1 showing a push-button type operation knob, and FIG. It is a perspective view showing a rotary operation knob.

The display device 1 shown in FIG. 1 is provided in a vehicle-mounted electronic device. The housing of the on-vehicle electronic device is embedded in a dashboard or an instrument panel inside the vehicle. A nose portion is provided in front of the casing, and the whole or a part of the nose portion is the display device 1 illustrated.

In the display device 1, the circuit board 2 is provided inside the nose portion, and the display panel 3 is provided on the front surface of the circuit board 2.
Are piled up. The display panel 3 is connected to the circuit board 2 using a flexible wiring board. The display panel 3 is, for example, an OELD (Organic Electro
Luminescent Display), which is capable of full-color display. For example, full color in this case is RGB
8 bits (256 gradations) each for 16,77
A 24-bit color representing 7,216 colors is shown. The display panel 3 is not limited to the OELD,
Color liquid crystal display and FED (Field Emission D)
It may be a self-luminous display using isplay).

A transparent electrode substrate (transparent member) 4 is laminated on the front surface of the display panel 3, and a transparent operation panel 5 is laminated on the front surface of the transparent electrode substrate 4.

The transparent electrode substrate 4 is formed by patterning the transparent electrode 4b on the surface of a transparent substrate 4a made of glass or resin. The transparent electrode 4b is formed of, for example, ITO (indium tin oxide).
The transparent electrode board 4 is connected to the circuit board 2 using a flexible wiring board.

The operation panel 5 is made of a highly transparent resin such as acrylic resin. Operation panel 5
Is colorless and transparent. Alternatively, it may be slightly black or brownish transparent, or slightly blueish transparent. Openings 5a and 5b are formed through the operation panel 5, and a push-button type operation knob 6 and a rotary operation knob 7 are installed in the openings 5a and 5b.

As shown in FIG. 2, the push-button type operation knob 6 has an operation button 6a made of a transparent resin material,
Elastic support members 11, 11 made of a transparent resin material are provided in a space between the operation button 6a and the opening 5a. The elastic support members 11 and 11 are formed into a substantially U-shaped cross section and are elastically deformable. The recesses 12 and 12 are formed at one outer end of the elastic support members 11 and 11.
Reference numerals 2 and 12 are fitted to a flange portion formed in the opening 5a of the operation panel 5. Furthermore, the elastic support members 11, 11
Recesses 13 and 13 are formed at one end (upper end) on the inside of the recesses 13 and 13, and the recesses 13 and 13 are fitted with support protrusions 6b and 6b formed on the side surfaces of the operation button 6a. As a result, the operation button 6a is positioned in the opening 5a with a gap from the transparent electrode substrate 4, and can be moved to a position where the operation button 6a comes into contact with the transparent electrode substrate 4 when pressed. .

At the facing portions of the portions of the elastic support members 11, 11 that are bent into a substantially U shape, protrusions 14 are formed on the outside and elastic protrusions 15 are formed on the inside so as to face each other. The protrusions 14 and 14 have a triangular cross section, and the elastic protrusions 15 and 15 have a triangular cross section and are slightly elastically deformable in the moving direction of the operation button 6a. Further, at the upper ends of the portions of the elastic support members 11, 11 that are bent into a substantially U shape, below the recesses 12, 12,
Grooves 16 and 16 are formed, and the elastic supporting members 11 and 11 are formed by the grooves 16 and 16 so that the protrusions 14 and
4 is elastically deformable in a direction away from the operation button 6a.

As shown in FIG. 2, the contact 1 formed on the lower surface of the operation button 6a by a transparent conductive member such as ITO.
7 are formed. The contact 17 is formed on the transparent substrate 4
It is formed so as to face both of the two electrodes 4b1 and 4b1 formed on the surface of a, and when the operation button 6a is pressed, the contact point 17 contacts the respective electrodes 4b1 and 4b1, The electrodes 4b1 and 4b1 are brought into conduction. In this embodiment, the electrodes 4b1 and 4b1 and the contact point 17 form a detecting means for detecting the operation of the operation button 6a.

When the operation button 6a is pressed in the P direction, the elastic supporting members 11, 11 are slightly expanded so that S1 in FIG.
Elastically deforms in the S and S2 directions. By this pressing operation, the contact 17 comes into contact with both of the electrodes 4b1 and 4b1 and becomes conductive, and this conductive state is detected by a detection circuit (not shown), and the processing set in the operation button 6a is executed. To be done. At this time, the elastic support members 11, 11
Is elastically deformed, the elastic projections 15 and 15 move downward and come into contact with the projections 14 and 14. Then, the elastic projections 15 and 15 are further pushed up and elastically deformed, and the elastic projections 15 and 15 pass over the projections 14 and 14 to generate a click feeling. As a result, it is possible to give the operator a feeling of operation. In this way the operation knob 6
Elastic support member 11 disposed between the control panel 5 and the operation panel 5,
The protrusions 14 and 14 and the elastic protrusions 15 and 15 of 11 form an operation feeling generating means for obtaining an operation feeling when the operation knob 6 is operated. Further, the elastic support member 1
Since the grooves 16 and 16 are formed in the grooves 1 and 11, when the operation button 6a is pushed down, the grooves 16 and 16 are elastically deformed so as to expand in a V shape, and thus the elastic support members 11 and 11 are formed.
Is easily elastically deformed.

When the pressing force applied to the operation button 6a is released, the elastic restoring force of the elastic supporting members 11, 11 causes the elastic projections 15, 15 to pass over the projections 14, 14 in the opposite direction to the above. The operation button 6a can be returned to the original state. The elastic support member 11 may be integrally formed in an annular shape so as to surround the outer circumference of the operation knob 6.

In the rotary operation knob 7 shown in FIG. 3, a flange 7b is formed on the outer peripheral surface at the lower end of a cylindrical operation button 7a formed of a transparent resin material, and the flange 7b is formed on the operation panel 5. The operation button 7a is supported by and can be rotated.

A transparent contact 7c made of ITO or the like is formed on the lower surface of the flange 7b. Further, a ring-shaped intermittent electrode group 4b2 is formed on the transparent substrate 4a of the transparent electrode substrate 4. This electrode group 4b2 is also IT
It is a transparent electrode formed of O or the like.

In the operation knob 7, the contact 7c is brought into contact with both of the adjacent electrodes in the electrode group 4b2 to be turned on, and the contact 7c is brought into contact with only a single electrode to be turned off. At this time, the electrode group 4b2
The rotation direction and the rotation amount of the operation button 7a can be detected based on the number of times the contact 7c is switched on and off and the order in which the energized electrodes are detected. For example, an individual identifier (number or the like) is given to each electrode, the rotation direction of the operation button 7a can be detected by the detection order of each electrode having this identifier, and the operation button 7a can be detected by the number of ON / OFF detections.
The rotation amount of can be detected. For example, if the operation knob 7 can control the volume, the number of decibels can be increased or decreased by rotating the operation button 7a. The operation knob 7 is always biased toward the transparent electrode substrate 4 by a transparent elastic member (not shown).

A graphic control method using the display device of the present invention will be described below with reference to FIGS. FIG. 12 is a circuit block diagram of the display device.

The display device 10 shown in FIG. 4 has substantially the same structure as the display device 1 shown in FIGS. 1 to 3, and the only difference from the display device 1 is the number and arrangement of operation knobs. is there.

The display device 10 shown in FIG. 4 has a transparent operation knob 22 and operation knob groups 23 and 24 which are push-operable on the surface of an operation panel 21 (corresponding to the operation panel 5) which is entirely transparent.
Similarly, a transparent rotary operation knob 25 is arranged. However, the display device 10 shown in FIG. 4 is an example thereof, and in addition to the operation knobs 22, 23, 24, 25, a plurality of other operation knobs may be provided.

For example, in the operation knob group 23, four transparent operation buttons 23a, 23b, 23c, 23d are inserted from the back side of the operation panel 21 and supported in each of the four divided openings on the surface of the operation panel 21. Has been done. The operation knob group 2
In the lower part of the operation panel 21, seven transparent operation buttons 24a to 24g are provided in a row in the left-right direction of the drawing. A transparent electrode substrate on which transparent electrodes are formed is laminated on the back side of the operation panel 21, and the operation buttons 2 are formed on the transparent electrode substrate.
A transparent electrode facing 4a to 24g is provided. That is, the relationship between the support structure of each operation button of the operation knob groups 23 and 24 and the transparent electrode is substantially the same as that shown in FIG.

The relationship between the support structure of the rotary operation type operation knob 25 and the transparent electrode is substantially the same as that of the operation knob 7 shown in FIG.

A large display area 29 is provided above the operation knob group 24 and on the right side of the operation knob 25.
Are formed. In addition, in this embodiment, the transparent operation panel 21 is located in the peripheral area of the operation knob group 23, the peripheral area of the operation knob group 24, and the peripheral area of the operation knob 25, and the peripheral area is displayed on the display panel. You can do it. Further, the operation button 23a of the operation knob group 23
23d, and regions between the operation buttons 24a to 24g of the operation knob group 24 are also transparent,
It is an area that can be displayed by the display panel. That is, almost the entire operation panel 21 is a display area.

FIG. 5 shows a state in which the power supply is off.
At this time, almost the entire area of the display surface of the display panel 3 is displayed in one color such as black, or the display is completely off.
FF, the operation panel 21 has the same color as a whole,
It is almost invisible except for the operation knob 22 of the power button. At this time, characters or symbols may be constantly displayed on a part of the display panel 3, or characters or symbols may be formed by printing on the surface of the operation panel 21 at positions outside the display area.

When the power is off, the operation knob 22
When is pressed, an operation signal having power-on information is given to the control unit 8 shown in FIG. 12, and the control unit 8 receiving this operation signal displays the tuner mode graphic stored in the storage unit (memory) 9. The display data to be displayed is taken out and the display panel 3 is driven. The display contents of the display panel 3 can be seen through the transparent operation panel 21, the transparent operation knob groups 23 and 24, and the operation knob 25.

FIG. 6 is a sample diagram showing a graphic when the tuner mode is set when the power is turned on. When the power is turned on, the operation mode that was operating when the power was turned off immediately before may be activated.
Alternatively, the same operation mode, for example, the tuner mode may always be activated.

In the tuner mode, when the operation knob 22 is operated, the entire operation panel 21, that is, the operation panel 21, the operation knob groups 23 and 24, and the operation knob 25 are displayed so as to have the same background graphic. In the background, the upper area is displayed in black and the lower area is displayed in dark blue. In the display area 29 located above the operation knob group 24 of the operation panel 21 and on the right side of the operation knob 25, "TU" indicating that the tuner mode is in the center is displayed.
"N" is displayed in a light blue color, and the broadcasting station name, the reception frequency, etc. are displayed over the "TUN" graphic.

It should be noted that when the power is turned on, the display on the display panel 3 is such that, for example, a graphic is radially spread from the one point such as the upper left direction as a starting point.
Done by After that, or immediately after the power is turned on, a display in which a wavy graphic is moved to the entire operation panel 21 may be displayed, and the display shown in FIG. 6 may be performed after these displays.

In the tuner mode, since only the operation knob group 23 is mainly used, the operation buttons 23a, 23b, 23c, 23d of the operation knob group 23 are replaced by the other operation knob group 24.
And brightly displayed in a color different from that of the operation knob 25, for example, yellow or green, and the operation buttons 23a, 23b, 23c,
In the area 23d, operation instruction displays such as "FM", "AM", and arrows appear. This operation instruction display is also displayed by driving the display panel 3. Therefore, for example, pressing the operation button 23a can increase the frequency of the tuner, and pressing the operation button 23b can decrease the frequency. Further, the frequency of a preset broadcasting station may be selected by one operation by pressing the operation buttons 24b to 24g.

In the operation mode shown in FIG. 6, when the operation button 23c is pressed, for example, the tuner mode can be switched to the MD mode capable of recording / reproducing MD (mini disk). FIG. 7 shows a state in which the operation button 23c is being operated to shift from the tuner mode to the MD mode. At the time of this change, the wave display 31 moves from one side on the left side of the paper of the operation panel 21 (one side in the vicinity of the operation button 23c) to one side on the right side opposite thereto, and when the wave display 31 passes, the graphic of the tuner mode is displayed. To M
Switch to D mode graphics. When all the graphics in the MD mode are displayed, the character "MD" appears in the center of the display area 29 instead of the "TUN". In this way, by changing the operation mode by using the graphic of the wave display 31, the change of the operation mode can be visually confirmed, so that the operator is not confused.
In addition, since a wavy graphic is generated near the operated operation button or directly below that operation button, the operation button that was operated now can be visually confirmed, and the operation desired by the operator has been reliably performed. Can be recognized. It should be noted that the operation panel 21 may display a track number and a reproduction time in addition to the characters “MD”.

As shown in FIG. 7, when the mode is changed to the MD mode, only the operation buttons 23c necessary for operating the MD are brightly displayed in yellow or green. Further, the ring area 25a around the operation knob 25 for adjusting the volume is displayed so as to be bright, and the bright display is displayed in the ring area 25a so as to rotate clockwise in association with the recording / reproducing operation of the MD. .

Further, although not shown, an operation knob for operating reproduction and stop of the disc may be graphically displayed. In this way, if only the operation knobs necessary for the operation are graphically identified, operation mistakes can be suppressed.

In the state shown in FIG. 7, an operation signal is sent to the control section 8 by operating the operation button 23c, and the control section 8 which has received the operation signal changes from the storage section 9 to the MD mode. Necessary display data is fetched and a graphic based on the display data is displayed on the display panel 3.

FIG. 8 is a sample diagram showing a graphic when a track is changed when the operation mode is the CD mode. The CD mode can be changed by, for example, pressing the operation button 23c in the MD mode. Further, the operation mode can be switched to the tuner mode by further pressing the operation button 23c. Further, when a CD changer or MD changer capable of storing a plurality of discs and selecting an arbitrary disc is connected to the electronic device, it is possible to shift to the CD changer mode or the MD changer mode. Other operation modes may be set. In the following description, it is assumed that the CD changer is connected.

In the CD mode shown in FIG. 8, the disc number selected by the CD changer, the disc title, the track number of the disc, the reproduction time of the music on the track, etc. are graphically displayed. Further, in FIG. 8, the disk selection numbers of the CD changer and the like are displayed on the operation buttons 24b to 24g, and the ring area 25a around the operation knob 25 is displayed to rotate the light as described above.

Further, among the operation buttons 24b to 24g, the operation button 24d corresponding to the currently selected disk number and its surroundings are displayed differently from the operation buttons 24b and 24c. In the example of FIG. 8, the operation button 24d is displayed. A graphic display is made in which the light rotates along the ring shape.

When the operation knob 23a is operated while the disc is being driven, the track number is changed to a larger track number, and when the operation knob 23b is operated, the track number is changed to a smaller track number. In FIG. 8, when the change of the track is instructed, the wave display 32 moves from the left side to the right side of the paper surface, and the graphic display at the time when the wave display 32 passes,
The display switches to the display of the selected track number. Even when the track is changed, the operator can visually confirm the change by the wave display 32, so that confirmation of the change operation of the track is not a problem.

Also in the case shown in FIG. 8, the control unit 8 retrieves the display data from the storage unit 9 and displays it on the display panel 3 according to the operation signal from the operation knob. Also in the sample diagrams of FIGS. 9 to 11 shown below, the display data stored in the storage unit 9 is retrieved by the control unit 8 in response to the operation signal from the operation knob, and the display panel 3 is displayed.
Is displayed in.

FIG. 9 is a sample diagram of a graphic display when the selected disc of the CD changer is changed. When the operation button 24c is pressed while the third disc is selected by the CD changer, the CD changer operates to switch the disc in the CD changer from the third disc to the second disc. When the disc is changed, the wave display 33 by the graphic is moved from the upper side to the lower side of the paper through the operation panel 21, and the disc number item (“Disk”) is gradually displayed from the third (“03”) to the second. ("02"). At this time, the item of the disk number is enlarged and displayed graphically. Also in this case, the wave display 3
Since it can be visually confirmed by 3, the operator is not confused.

Further, a graphic display in which light rotates along the ring shape is displayed on the portion of the operation button 24b with the disk number 2. As a result, the number of the currently selected disc can be recognized at a glance.

FIG. 10 shows that the volume is being adjusted in any of the tuner mode, the MD mode and the CD mode, that is, only when the operation knob 25 is operated, or when the operation knob 25 is operated. It is a sample diagram of a graphic displayed for a few seconds immediately after the end of the operation. As shown in FIG. 10, by rotating the operation knob 25 clockwise or counterclockwise toward the paper surface,
A spiral display 34 is displayed around the operation knob 25. At this time, the numerical value is switched in a state where the volume item (“Volume”) and the numerical value at that time are enlarged and displayed.
The display diameter of the spiral display 34 changes according to the rotation amount of the operation knob 25. In this way, by displaying the rotation amount and the like around the operation knob 25, the operability of the operator is improved.

FIG. 11 is a sample diagram showing still another graphic. This graphic shows the operation panel 2
By operating the predetermined operation knobs provided in No. 1, the operation knob group 23, the operation knob 25, and other operation knobs change from blue to red, that is, only the necessary operation knobs are displayed in the red state graphically. As a result, the operation knobs that are unnecessary for operation are darkened, which improves operability.

[0059]

According to the present invention described above, the display of the operation knob can be changed at any time according to the mode, and the display corresponding to various operation modes can be performed.

Further, various displays are possible by changing the display around the operation knob together with the operation knob, and further changing the display of the operation knob and its periphery and the display area according to the mode. A large area of the operation panel can be used for display.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a display device of the present invention,

FIG. 2 is a sectional view taken along line II-II in FIG. 1 showing a push button type operation knob;

FIG. 3 is a perspective view showing a rotary operation knob,

FIG. 4 is a front view showing a more specific arrangement configuration of operation knobs of the display device of the present invention;

FIG. 5 is a sample diagram showing a graphic when the power is off,

FIG. 6 is a sample diagram showing a graphic when the operation mode is the tuner mode,

FIG. 7 is a sample diagram showing a state during conversion when the operation mode is changed from the tuner mode to the MD mode,

FIG. 8 is a sample diagram showing a state during conversion when a track is changed when the operation mode is the CD mode,

FIG. 9 is a sample diagram showing a state in the middle of conversion when the disc of the CD changer is changed,

FIG. 10 is a sample diagram showing a state when the volume is adjusted,

FIG. 11 is a sample diagram showing another operation mode,

FIG. 12 is a circuit block diagram of a display device of the present invention,

FIG. 13 is a schematic view showing the internal structure of a conventional display device,

[Explanation of symbols]

1,10 Display device 2 circuit board 3 display panel 4 Transparent electrode substrate (transparent member) 4a transparent substrate 4b transparent electrode 5,21 Operation panel 6,7 Operation knob 6a, 7a operation buttons 11 Elastic support member 14 Protrusion 15 Elastic protrusion 17 contacts 22,25 operation knob 23, 24 Operation knob group 23a-23d, 24a-24g operation buttons 29 display area 31-33 wave display 34 Swirl display

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) H01H 13/02 H01H 13/02 A 5G052 13/26 13/26 5G435 19/02 19/02 H (72) Inventor Hidetoshi Sumiya 1-8, Nishigotanda, Shinagawa-ku, Tokyo F-Term (Reference) 2F078 FB02 FB13 FB26 FB28 FB47 FB49 FE11 3D044 BA16 BA21 BA26 BA27 BB01 BC13 BD05 5C080 AA06 AA10 AA18 BB04 CC03 JJ01 JJ02 JJ06 KK20 5G006 AA02 BB07 BC07 CB08 JA01 5G019 JJ02 JJ03 JJ06 JJ14 SK02 SK07 SY01 5G052 AA23 BB01 BB02 JB02 JC04 5G435 AA00 BB05 BB12 CC12 DD01 EE12 GG21 HH02

Claims (10)

[Claims] 1. A transparent operation knob is attached to an operation panel from the outside so as to be operable from the outside, and a transparent member having a detection means operated by the operation knob is provided behind the operation knob. A display panel is provided behind the transparent member, and by changing the display content of the display panel, a control unit that changes at least one of the color of the operation knob, the operation instruction display, and the pattern when viewed from the outside is provided. A display device provided. 2. The operation panel is transparent at least in an area surrounding the operation knob, and when the display content of the display panel changes, the operation knob and the peripheral area thereof are colored, an operation instruction display, and a pattern are displayed. The display device according to claim 1, wherein at least one of them changes together. 3. The operation panel is provided with a plurality of the operation knobs, and the operation panel is transparent in a predetermined area including at least the plurality of operation knobs, and the plurality of operation knobs and the area are provided. The display device according to claim 2, wherein at least one of the color, the operation instruction display, and the pattern changes together. 4. The operation panel is provided with a display area distant from the operation knob, the operation panel has a transparent display area, and when the display content of the display panel is changed, 4. The display device according to claim 1, wherein at least one of the color of the operation knob, the operation instruction display, and the pattern changes together with the display content in the display area. 5. The display device according to claim 4, wherein in the operation panel, an area in which the operation knob is provided and the display area are continuously transparent. 6. The operation knob is a push-button type, the operation knob inserted into the opening of the operation panel is supported by a transparent elastic support member, and the detection means pushes the operation knob. The display device according to claim 1, further comprising a transparent electrode that is brought into contact with the display device when the display device is turned on. 7. The display device according to claim 6, wherein the elastic support member is provided with an operation feeling generation unit that generates an operation feeling when the operation knob is pressed. 8. The operation knob is a rotary type, the operation knob is rotatably supported by the operation panel, and the detection means is a transparent electrode for detecting rotation of the operation knob. 6. The display device according to any one of 5 to 5. 9. The display device according to claim 2, wherein the operation knob is a rotary type, and the display content of a region around the operation knob changes in accordance with the amount of rotation of the operation knob. . 10. A plurality of operation knobs are provided,
2. When the operation mode is switched, at least one of the operation knob color, operation instruction display, and pattern necessary for operating the mode is displayed differently from other operation knobs.
10. The display device according to any one of 9 to 9.