JPH08292729A - Information display device - Google Patents

Abstract

PURPOSE: To enable a user to easily visually recognize a pressed key by varying the density of the two regions of a display forming means from each other according to the operation of a key means. CONSTITUTION: When a function key 3 is pressed, a corresponding guidance display changes to a display as if the key is pressed to allow the sure visual recognition of the fact that the key is pressed. Namely, the guidance display A is composed of a central part a1 and flank parts a2 to a5 . The central part a1 is displayed with an intermediate density of a basic color and the flank part a2 on the upper side and the flank part a5 on the left side are displayed with a density thinner than this density when the function key 3 is not pressed. Further, the flank part a2 on the upper side and the flank part a5 on the left side are changed to be displayed with a thick density and the flank part a4 on the lower side and the flank part a3 on the right side to be displayed with thin density when the function key 3 is pushed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention
And an information display device suitable for use in a navigation integrated system.

[0002]

2. Description of the Related Art In-vehicle audio systems for enjoying audio reproduction in automobiles have become widespread. Also,
With the development of small liquid crystal displays, in-vehicle television receivers are becoming popular. Further, a car navigation system for positioning the present location using a satellite and displaying it on an electronic map is becoming widespread. The AV and navigation integrated system is an integrated system that can handle these devices.

In such an integrated AV and navigation system, it is necessary to arrange a large number of keys on the operation panel. In other words, in such an integrated AV and navigation system, for example, a repeat key, a cue / review key, a stop key, etc. are required for CD reproduction, and a band switching key, a receiving station preset key for FM / AM direction reception. Etc. are required. It is difficult to arrange a large number of these keys on an operation panel having a limited size. Moreover, if the number of operation keys increases, the operability deteriorates. Therefore, in such a system, function keys are arranged so that the functions are assigned according to the device used. By using the function keys, the number of operation keys can be reduced and the operability can be improved.

It is possible to mount a touch panel on the display so that the display of keys is displayed on the display so that various operations can be performed on the touch panel. However, the touch panel has a problem that fingerprints are attached to the display surface. Further, on the touch panel, the display may be inadvertently touched and set in an unexpected operating state.

[0005]

When the function keys are arranged, it is necessary to display what kind of function is assigned to the keys. Therefore, guidance is displayed on the display to show what function is assigned to the function key. Conventionally, the guidance display of this function key merely shows the allocation of the function key. If it is possible to easily visually recognize which function key is pressed, the operability can be further improved.

Further, in such an integrated AV and navigation system, a cursor key is used, for example, to advance a music number when reproducing a CD. The operability is improved if it is possible to visually recognize which cursor key is pressed when the cursor key is operated.

Therefore, an object of the present invention is to provide a display device in which a depressed key can be easily visually recognized.

[0008]

The present invention comprises a plurality of key means, a display means for displaying the function of each of the plurality of key means, and a display forming means for forming a display pattern of the display means. The display forming means generates a display pattern having outer edges of two regions having different densities,
The information display device is characterized in that the densities of the two regions are mutually changed according to the operation of the key means.

The present invention comprises a plurality of key means, a plurality of display means for displaying the respective functions of the plurality of key means, and a display forming means for forming a display pattern of the display means. An information display device is characterized in that a two-dimensional display pattern and a three-dimensional display pattern are generated, and the three-dimensional display pattern and the three-dimensional display pattern are changed according to an operation of a key means.

[0010]

When the function key is not pressed, the upper side surface and the left side surface of the guidance display are displayed in light density, and the lower side surface and the right side surface are displayed in dark density. When the function key is pressed, the upper side surface and the left side surface of the guidance display have a dark density, and the lower side surface and the right side surface have a light density. From this, when the function key is not pressed, the guidance display appears to project, and when the function key is pressed, the guidance display appears to be dented. From the state of the guidance display, whether the function key is pressed or not is displayed. You can check it at a glance.

When the cursor key is not pressed, the cursor key display is composed of the center part and the side part,
When the cursor key is pressed, the cursor key display becomes only the center part. From this, when the cursor key is not pressed, the cursor key display looks three-dimensional, and when the cursor key is pressed, the cursor key display looks planar. Therefore, it is possible to check at a glance which cursor key has been pressed from the cursor key display state.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows an example of the configuration of an AV and car navigation system to which the present invention is applied. In FIG. 1, 11 is an operation unit. The operation unit 11 is attached to, for example, the dashboard 102 of the vehicle 101.

As shown in FIG. 2, the operation unit 11 is provided with a liquid crystal display 1, function keys 3 _{1 to} 3 ₆ , cursor keys 4 A to 4 D, a display switching key 5, a map key 6 ₁ , and a mode key. 6 ₂ , Adjust key 6 ₃ , Help key 6 ₄ , Mute key 6 ₅
Etc. are provided. Further, the operation unit 11 is provided with a volume adjusting dial 7. On the liquid crystal display 1,
The operation state is displayed, and an electronic map for navigation and an image receiving screen during television reception are displayed.

In FIG. 1, 12 is a main unit, 1
3 is a power unit, 14 is a tuner unit, 15 is a CD unit, and 16 is a GPS unit. Main unit 12, power unit 13, tuner unit 1
4, the CD unit 15, and the GPS unit 16 are arranged, for example, in the trunk 103 in a state of being integrally coupled.

The main unit 12 has a main CPU, a sub CPU, a graphics drawing / display circuit, etc., and manages the operation of the entire system. The main unit 12 and the operation unit 11 are connected, and the input from the operation keys of the operation unit 11 is input to the main unit 1.
2 and the image signal from the main unit 12 is given to the liquid crystal display 1 of the operation unit 11.

The power unit 13 includes a power source section, a DSP preamplifier section, and a power amplifier. The DSP preamplifier section has functions such as sound quality / volume adjustment, surround sound, and parametric equalizer. The audio output of the power unit 13 is supplied to the speakers 17A and 17B attached to the left and right door panels 104A and 104B of the vehicle 101, for example.

The tuner unit 14 is used for AM broadcasting and FM broadcasting.
It is for demodulating a received signal of broadcasting. Further, the tuner unit 14 can demodulate a television signal. The tuner unit 14 is supplied with a reception signal from the FM / AM reception antenna 18. Further, the tuner unit 14 is supplied with a reception signal from the television antenna 19.

The CD unit 15 reproduces a compact disc for music. An autochanger 21 is attached to the CD unit 15. A desired disc is selected by the autochanger 21, and this disc is reproduced by the CD unit 15.

The GPS unit 16 measures the current position using satellites. The GPS unit 16 has
The GPS antenna 20 is attached. The current position of the vehicle is measured by the GPS unit 16. Main unit 1
2 is provided with a CD-ROM decoder in which map information is recorded.
The current location determined by is displayed on the map.

In the above system, the main unit 12 and the power supply unit 13 are basic units, and include the tuner unit 14, the CD unit 15, and the GPS.
The unit 16 is an optional unit. Tuner unit 14, CD unit 15, GPS unit 16
Are selectively attached according to user preference.
For the main unit 12 and the power supply unit 13, which are basic units, the tuner unit 14, the CD unit 15, and the GPS unit 16 which are optional units
Can be easily added or exchanged.

In addition to these systems, a rear display can be provided so that a person in the rear seat can see the screen, and a handle operation unit can be provided so that the user can perform various operations at the handle. Is. Further, in the above example, the two speakers 17A and 17B are provided, but it goes without saying that a larger number of speakers can be provided.

As described above, the operation unit 11 is attached to the dashboard 102, and the other units (main unit 12 and power supply unit 13 and the optional tuner unit 14, CD unit 15, and G unit).
The PS unit 16) is attached to the trunk 103, for example. Since the operation unit 11 is attached to the dashboard 102, the driver can easily set the operation while looking at the display of the operation unit 11. Since other units can be attached to the trunk 103, a sufficient attachment space can be secured.

FIG. 3 is a block diagram showing a concrete configuration of this system. In FIG. 3, the main unit 1
2, a main CPU 30, a sub CPU 31, a RAM 3
2, a ROM 33, a graphic engine circuit 34, and a video control unit 35 are provided. The main CPU 30 is a program execution unit, and the ROM 3 in the main unit 30.
3, power unit 13, tuner unit 14, CD
ROMs 4 and 5 in the unit 15 and GPS unit 16
Access 3, 56, 61 to execute each program,
It controls the main unit 12, the power unit 13, and the tuner unit 14, the CD unit 15, and the GPS unit 16 which are optional units.

The sub CPU 31 is an input control unit for controlling input data, and is a power supply monitor such as a vehicle accessory switch and a battery voltage check, and the power unit 1.
ON / OFF control of the power supply unit 41 in the main CPU 30
Starting the operation in the operation unit 11 key 36 (function key 3 ₁ to 3 _6, cursor keys 4A - 4D, display switching key 5, consisting of the key 6 _{through 65,} etc.) input of uptake by the operation of the main CPU30 Interrupt control, CD-ROM player 26 control, and the like.

The main ROM 33 is initialized with
A tuner which is a so-called system function group, an electronic map function, and an option unit for taking in inputs from the operation keys 36, displaying controls for graphics drawing, video switching control, taking in data from the CD-ROM player 26, etc. A mode transition control program for executing the programs stored in the ROMs 53, 56, 61 in the unit 14, the CD unit 15, and the navigation unit 16 is stored.

Information data of the option unit connected to the RAM 32 is entered at initialization. The RAM 32 is used as a work area for the main unit 12, the tuner unit 14, the CD unit 15, and the navigation unit 16, which are optional units.

The graphics engine circuit 34 displays the operation unit 11 on the liquid crystal display 1 during operation.
This is to enable all displays such as electronic map display and navigation display to be performed at high speed. The video control unit 35 is an image display control unit that controls image output switching.

The CD-ROM player 26 has an electronic map display function, and reads the data stored in the CD-ROM when drawing an electronic map required for navigation.

A bus 25 is led out from the main unit 12. The bus 25 includes a CPU bus for exchanging data between CPUs, an audio line for transmitting an audio signal, a video line for transmitting a video signal, and a power supply line. The main unit 12, the power unit 13, the tuner unit 14, the CD unit 15, and the navigation unit 16, which are optional units, are connected via the bus 25.

The power unit 13 includes a power supply section 41, a power amplifier 42, a DSP preamplifier 43, and a ROM 4.
4 and a CPU 45. Further, the power unit 13 is provided with an interface unit 46 for connecting to the bus 25. C of power unit 13
The PU 45 and the CPU 30 of the main unit 12 are connected via the CPU bus of the bus 25.

The power supply unit 41 is supplied with power from an on-vehicle battery. The power supply unit 41 stabilizes the power supply from this battery. On / off of the power supply unit 41 is controlled by the sub CPU 31 in the main unit 12. Power from the power supply unit 41 is supplied to the main unit 12, the tuner unit 14, the CD unit 15, and the navigation unit 16 which are optional units, via the power supply line of the bus 25. Tuner unit 14
Or CD unit 15 to power unit 13, bus 25
An audio signal is input through the audio line of. This audio signal is supplied to the DSP preamplifier 43. The DSP preamplifier 43 is provided with an electronic volume for volume / balance / fader, a parametric equalizer, and a surround processor. The output of the DSP preamplifier 43 is supplied to the power amplifier 42. The power amplifier 42 power-amplifies this audio signal. The output of the power amplifier 42 is supplied to the speaker 17.

In this example, as an option unit,
The tuner unit 14, the CD unit 15, and the navigation unit 16 are provided.

The tuner unit 14 includes an FM / AM tuner 51, a television tuner 52, and a ROM 53.
And a CPU 55. Further, the tuner unit 14 is provided with an interface unit 54 for connecting to the bus 25. The CPU 55 of the tuner unit 14 and the CPU 30 of the main unit 12 are
It is connected via the CPU bus of the bus 25.

The FM / AM tuner 51 has an FM / AM
The antenna 18 is connected. FM / AM tuner 51
Then, the received signal of FM broadcast or AM broadcast is demodulated. The television tuner 52 has a television antenna 1
9 is connected. The television tuner 52 demodulates the received signal of the television broadcast. The audio signal demodulated by the FM / AM tuner 51 or the television tuner 52 is transferred via the audio line of the bus 25 to
It is sent to the DSP preamplifier 43 of the power unit 13. Then, it is amplified by the power amplifier 42, and the speaker 1
7A and 17B. In addition, the video signal demodulated by the television tuner 52 is transmitted via the video line of the bus 25 to the video control unit 3 of the main unit 12.
Sent to 5. Then, it is displayed on the liquid crystal display 1 or the rear display 38 of the operation unit 11.

The CD unit 15 is provided with a CD interface 55, a ROM 56 and a CPU 58.
Further, the CD unit 15 is provided with an interface unit 57 for connecting to the bus 25. CPU 58 of the CD unit 15 and CP of the main unit 12
It is connected to the U30 via the CPU bus of the bus 25.

The CD interface 55 of the CD unit 15 is connected to the CD changer 21. A plurality of discs are mounted on the CD changer 21. CD
A desired disc is selected from the discs of the changer 21. The reproduction output of this disc is sent to the DSP of the power unit 13 via the audio line of the bus 25.
It is sent to the preamplifier 43. And the power amplifier 42
Is amplified and supplied to the speaker 17.

The GPS unit 60 includes a GPS circuit 60.
A ROM 61 and a CPU 63 are provided. Also, G
The PS unit 16 is provided with an interface unit 62 for connecting to the bus 25. The CPU 63 of the GPS unit 16 and the CPU 3 of the main unit 12
0 is connected via the CPU bus of the bus 25. G
The GPS antenna 20 is connected to the PS circuit 16.
The GPS circuit 16 measures the current position using satellites. This current position data is sent to the main unit 12 via the CPU bus of the bus 25. Main unit 1
The map information is read by the second CD-ROM player 26. The graphics engine circuit 34 forms graphics of an electronic map based on this map information. The current location from the GPS circuit 60 is plotted on this map information. This is displayed on the liquid crystal display 1 of the operation unit 11.

Next, the display on the liquid crystal display 1 of the operation unit 11 will be described. FIG. 4 shows the operation unit 1
1 shows the display of the liquid crystal display 1 of FIG. In the initial state, the function keys 3 _{1 to} 3 ₆ function as device selection switches. That is, as shown in FIG. 4A, the function keys 3 ₁ , 3 ₂ , 3 ₃ , 3 ₆
Function key 3 as guidance display for
_1, 3 _{2, 3} 3, 3 of high corresponding to ₆ of place, "tuner", "television", "CD", the guidance display _{A 1, A 2, A 3} , A 6 of the "demonstration" Is displayed. When the function key 3 ₁ is pressed, the tuner functions, when the function key 3 ₂ is pressed, the television receiver functions, and when the function key 3 ₃ is pressed, the compact disc player functions.

Here, for example, the function key 3 ₃
When is pressed, a compact disc playback screen is displayed as shown in FIG. 4B. That is, on the liquid crystal display 1, “repeat”, “shuffle”, “scan”, “queue”, “review”, and “end” are respectively provided as guidance for the function keys 3 ₁ , 3 ₂ , 3 ₃ , 3 ₆ . Guidance display A ₁₁ , A ₁₂ , A ₁₃ , A
₁₄ , A ₁₅ , and A ₁₆ are displayed. When the function keys 3 ₁ , 3 ₂ , 3 ₃ , 3 ₆ are pressed, the operation corresponding to the guidance display A ₁₁ , A ₁₂ , A ₁₃ , A ₁₄ , A ₁₅ , A ₁₆ .
That is, the operations of “repeat”, “shuffle”, “scan”, “queue”, “review”, and “end” are displayed. Also, above the liquid crystal display 1,
A display B ₁ showing a disc, a display B ₂ showing a disc number and a song number being reproduced, a display B ₃ showing a reproduction time, and a display B ₄ showing a state such as repeat are displayed. Further, the lower liquid crystal display 1, guidance displays C _A -C _D cursor keys 4A~4D is displayed. Cursor key 4A
When ~ 4D is pressed, the operation corresponding to the guidance display C _A ~ C _D is displayed. That is, when the cursor key 4A is pressed, the previous disc is displayed, and the cursor key 4C
When is pressed, it becomes the next disc. Cursor key 4
When B is pressed, the previous tune is selected, and when the cursor key 4C is pressed, the next tune is selected.

As described above, in the integrated AV and navigation system to which the present invention is applied, the guidance indicating the functions of the function keys 3 _{1 to} 3 ₆ is displayed on the liquid crystal display 1. And the function key 3 ₁
When -3 ₆ is pressed, the display changes to, that key is pressed is to reliably visually recognized, such as when the guidance display corresponding thereto as if the key is pressed.

That is, as shown in FIGS. 5A and 5B,
The guidance display A includes a central portion a ₁ and side portions a _{2 to} a ₅
It consists of and. FIG. 5A shows the case where the function key 3 is not pressed. When the function key 3 is not pressed, the center part a ₁ is displayed with a density intermediate between the basic colors, and the upper side part a ₂ and the left side part a ₅ are displayed with a lower density. The lower side surface portion a ₄ and the right side surface portion a ₃ are displayed with a darker density. When function key 3 is pressed,
As shown in FIG. 5B, the upper side surface part a ₂ and the left side surface part a ₅ are displayed in a dark density, and the lower side surface part a ₄ and the right side surface part a ₃ are displayed in a light density. Change.

Assuming that the light source is at the upper left, if the central portion a ₁ of the guidance display A is raised, the upper side portion a ₂ and the left side portion a ₅ are exposed to light to become whitish, and the lower side portion a ₅ is The side surface portion a ₄ and the right side surface portion a ₃ are shaded and darkened. When the central portion a ₁ of the guidance display A is recessed, the lower side surface portion a ₄ and the right side surface portion a ₃ are exposed to light and become whitish, and the upper side surface portion a ₂ and the left side surface portion a ₅ are shaded. It becomes blackish.

Therefore, when the function key 3 is not pressed, the central portion a ₁ is displayed with the intermediate density of the basic color, and the upper side portion a ₂ and the left side portion a ₅ are displayed.
Is displayed with a lower density, and the lower side surface a ₄ and the right side surface a ₃ are displayed with a darker density, so that the guidance display A appears to be protruding. When the function key 3 is pressed, the upper side surface part a ₂ and the left side surface part a ₅ are displayed in dark density, and the lower side surface part a ₄ and the right side surface part a ₃ are displayed in light density. , Guidance display A seems to be recessed. In this way, when the function key 3 is not pressed, the guidance display A appears to project, and when the function key 3 is pressed, the guidance display A appears to be recessed. It is possible to check at a glance whether the activation key 3 has been pressed.

When the cursor keys 4A to 4D are pressed, the guidance display corresponding to this is changed to a display similar to that when the key is pressed, so that it can be confirmed visually that the cursor key has been pressed. Has been done.

That is, as shown in FIGS. 6A and 6B,
The cursor key displays C _{A to} C _{D respectively} show the central portion c ₁ and
It is composed of side surface parts c ₂ and c ₃ . Figure 6A
A display is shown when all the cursor keys 4A to 4D are not pressed. In this case, each cursor key display C
_A -C _D, due the center c ₁ and the side surface portion c ₂ and c _3, appear three-dimensional. Here, when the cursor key 4A is depressed, as shown in FIG. 6B, the side surface portion c ₂ and c ₃ of the cursor key display C _A is removed, the cursor key display C _A is only the center c _1. Therefore, the cursor key 4A looks like a plane. In this way, the cursor keys 4A-4D
When has not been pressed, the cursor key display C _A ~C
_{When D} appears three-dimensionally and the cursor keys 4A to 4D are pressed, the cursor key displays C _{A to} C _D appear to be two-dimensional. Therefore, from the state of the cursor key displays C _{A to} C _D , which cursor key 4A to You can check at a glance whether 4D has been pressed.

As described above, according to the embodiment of the present invention, whether or not a key is pressed can be seen at a glance from the key display. Such control is performed, for example, in FIG.
This is performed as shown in FIG.

FIG. 7 shows the structure of the video RAM provided in the graphic engine circuit 34. The video RAM is, for example, nine areas AREA # 1 to AR.
It is composed of EA # 9. Areas AREA # 1 to AR
EA # 9 is an area having a capacity larger than that of one frame. Of these areas AREA # 1 to AREA # 9, the area AREA # 1 serves as a frame memory that is displayed on the actual screen, and the other areas AREA # 2 to AREA # 9.
Is a working memory. For example, AREA # 2
Is the working memory for displaying the keys.

As shown in FIG. 8, for example, in the case of cursor key display, first, the working memory (AREA #
In 2), the drawing of the cursor key display as shown in FIG. 9A is formed (step S1). This cursor key display is drawn from the working memory to the frame memory (ARE
A # 1) (step S2). As a result, the cursor keys are displayed as shown in FIG. 9B.
Here, it is determined whether or not the cursor key has been pressed (step S3), and when the cursor key is pressed, FIG.
A drawing as if the cursor key is pressed is formed in the working memory (step S4). The drawing of the cursor key display is copied from the working memory to the frame memory (step S5). This allows
As shown in FIG. 9D, cursor keys that have been pressed are displayed. Here, it is determined whether or not the cursor key is released (step S6), and when the cursor key is released, the process returns to step S1 and a drawing of the cursor key display as shown in FIG. 9E is formed, as shown in FIG. 9F. The cursor key is displayed.

[0049]

According to the present invention, when the function key is not pressed, the upper side part and the left side part of the guidance display are displayed in a light density, and the lower side part and the right side part are displayed. It is displayed in dark density. When the function key is pressed, the upper side surface and the left side surface of the guidance display have a dark density, and the lower side surface and the right side surface have a light density. From this, when the function key is not pressed, the guidance display appears to project, and when the function key is pressed, the guidance display appears to be dented. From the state of the guidance display, whether the function key is pressed or not is displayed. You can check it at a glance.

When the cursor key is not pressed, the cursor key display consists of the center part and the side part,
When the cursor key is pressed, the cursor key display becomes only the center part. From this, when the cursor key is not pressed, the cursor key display looks three-dimensional, and when the cursor key is pressed, the cursor key display looks planar. Therefore, it is possible to check at a glance which cursor key has been pressed from the cursor key display state.

[Brief description of drawings]

FIG. 1 is a perspective view showing an overall configuration of a system to which the present invention is applied.

FIG. 2 is a plain view showing a configuration of an operation unit in a system to which the present invention is applied.

FIG. 3 is a connection diagram showing an overall configuration of a system to which the present invention is applied.

FIG. 4 is a schematic diagram used for explaining a display in a system to which the present invention is applied.

FIG. 5 is a schematic diagram used for explaining one embodiment of a display to which the present invention is applied.

FIG. 6 is a schematic diagram used for explaining another embodiment of the display to which the present invention is applied.

FIG. 7 is a schematic diagram used to describe a display device to which the present invention is applied.

FIG. 8 is a flowchart used for explaining a display device to which the present invention is applied.

FIG. 9 is a schematic diagram used to describe a display device to which the present invention is applied.

[Explanation of reference numerals] 1 display 11 operation unit 12 main unit 15 CD unit

Claims (2)

[Claims] 1. A plurality of key means, a display means for displaying a function of each of the plurality of key means, and a display forming means for forming a display pattern of the display means, the display forming means, An information display device, wherein a display pattern having outer edges of two regions having different densities is generated, and the densities of the two regions are mutually changed according to an operation of the key means. 2. A display forming means, comprising: a plurality of key means, a plurality of display means for displaying a function of each of the plurality of key means, and a display forming means for forming a display pattern of the display means. An information display device, wherein a two-dimensional display pattern and a three-dimensional display pattern are generated, and the three-dimensional display pattern and the two-dimensional display pattern are changed according to an operation of the key means.