JP2020115347A - Driving assist system and program - Google Patents

Abstract

To display images having luxurious feeling, neo-futuristic feeling, and coolness, in an electronic apparatus to be installed in a vehicle so that persons present within the vehicle can visually recognize a screen.SOLUTION: Provided is an electronic apparatus (navigation device 1) installable in a vehicle for persons present in the vehicle to visually recognize a screen, and that comprises a control unit for displaying images in the screen of a display. The control unit includes a function to switch between a color display for displaying the images in color and a two-tone display for displaying the images in two-tones. The control unit further includes a function for hiding an icon being disposed and displayed on a background during the color display, when the two-tone display is performed.SELECTED DRAWING: Figure 8

Description

The present invention relates to an electronic device, a program and the like.

In the car navigation system, as a map element on the display screen, an icon indicating the position (Point Of Interest = POI) of roads, facilities, etc., the names of rivers, ponds, facility shapes, other division areas, peripheral facilities, intersections, etc. Characters, symbols, numbers, etc. indicating such as are displayed. These displays are color-coded so that the ones that need to be distinguished are different colors from the viewpoint of ensuring that the destination can be reliably reached during route guidance to the destination, which is the original purpose of the navigation system. ing. For example, roads and rivers have different colors to distinguish them. Roads are also color-coded and displayed using several colors (Patent Document 1). As a result, in the conventional car navigation system, many colors such as red, green, blue... Are simultaneously displayed on the screen.

The drawings of patent applications cannot be applied in color, so the colors may be described in code below. This code is expressed in the form of (RRGGBB) by arranging two-digit hexadecimal numbers (possible range corresponds to decimal numbers 0 to 255) in order of red, green, and blue (RGB) which are the three primary colors of light. For example, (000000) indicates black because red, green and blue have the lowest brightness, and (FFFFFF) indicates white, which is the maximum brightness for both red, green and blue. In (FF0000), red has the maximum luminance (FF in hexadecimal number, 255 in decimal number), and green and blue have red luminance because the luminance is zero.

FIG. 1 is a display example of a display screen in a conventional navigation system. A map is drawn on the bottom layer, and information and buttons are displayed on it. The map is displayed on the entire screen, and the information display and the button display are basically placed on the map in the peripheral part of the screen.

The information display and button display are as follows. For example, in the screen display of FIG. 1, the character “10:31” indicating the current time is drawn in the upper left corner on a rectangular background area of white (FFFFFF) and slightly transparent black (yellow transparent portion (394939)). There is. On the right side, a band-shaped slightly transparent black rectangular background area is provided in the left-right direction, and an icon composed of a rectangular area of a Japanese map drawn in white (FFFFFF) on a blue background (088ABD) on that area, The character "Niki Town, Okazaki City, Aichi Prefecture" indicating the current position is drawn in white (FFFFFF).

Further, four buttons are provided on the right side of the screen, that is, from the upper left of the screen to the downward direction. The four buttons are, in order from the top, "surrounding spots," "peripheral facilities," "make waypoints," and "make destinations." Also, two buttons are provided in the left-right direction in the lower center. Buttons for "point registration" and "avoidance area". A touch panel is provided on the display screen, and when a touch on the corresponding button position is detected, the process assigned to the button is executed. These six buttons are drawn with a dark blue (061E52) icon and letters on a gray (D8D9D8) background.

At the bottom right of the screen is a "current location" button. This button has a white (FFFFFF) icon and a character string "current location" drawn on a slightly transparent black (525552) rectangular background area.

A "MENU" button is provided at the lower left of the screen, and this button is drawn with a white (FFFFFF) icon and characters on an opaque blue (003374) background.

Below the clock at the top left of the screen, there is a map scale change button. The scale change button displays the compass showing the north direction in red (D50000) and the character (100 m) in blue (021C4E) (
The scale of the currently selected map is displayed.

Below this button, there is an information display area that indicates the GPS reception status. White (FFFFFF) characters "GPS" and three bars indicating the current GPS reception level are slightly transparent black (393C39). Is drawn on the rectangular background area.

In addition to such information display and button display, a current position icon indicating the current position is displayed on the map. In FIG. 1, a triangular icon is displayed between the buttons "MENU" and "Point registration" at the lower right of the screen. This icon is drawn in red (F11930).

The map has the following elements. At the back, there is a district division polygon area which is a polygon showing an area, and a road, a facility division polygon area, a facility icon, a company icon, and a name character string are overlaid and displayed on the area division polygon area in this order from the bottom.

In the example in Fig. 1, as a district division polygon, it extends from the top of the menu button toward the upper right direction and is divided into left and right bifurcated river areas of light blue (A5BEDE) and a bifurcated portion of the river area and a portion roughly left of the river area. Area 1 of pale bright yellow (FFFFEF) that occupies the background between the areas, and area 2 of pale bright pink (F7F3FF) that occupies the background of the area from the center to the upper right It is displayed as the third district area of pale light blue (EFFBFF) that occupies the background in the lower right part.

In the example of FIG. 1, as roads, two substantially parallel roads extending upward from the vicinity of the "current position" button on the lower right of the screen are highways, and the right road is the lane from the top to the bottom of the screen. Shows the lanes from the bottom to the top of the screen, which are displayed in light blue (4ACBFF) and dark blue (4A71A5), respectively. The diagonal road passing near the upper right of the "Point registration" button and near the upper right of the "Route point" button is the national road for ordinary roads and is displayed in ocher (FFCB00). On this road, two traffic lights are overlapped (on the upper part between the buttons of "Register point" and "Avoid area", and on the upper part of "Iwazu Ogosho" near the middle of the national road. Is drawn). This traffic light icon imitates the shape and color of the traffic light. From left to right, blue (00ABFF), yellow (FFE600), red (FF1E3F) are circled in this order. .. The character string “Iwazu Ogosho” is a name character string that indicates the name of the intersection, and is displayed in white (FFFFFF) characters on the pale emerald green (71B1D6). Further, a road heading upward from the current position icon and then heading to the lower left direction indicates a guide route, and is drawn in bright purple (FF4DFF) close to pink. Other roads such as lines drawn in mesh form are narrow streets and are drawn in gray (E1DEE6).

In the example of FIG. 1, as facility polygons, a plurality of regions separated by polygons indicating a light brown (D6CBAD) "Marusan Eye" factory building or the like are provided near the center of the screen and on the left side. In addition, the character string of "Marusan Eye" is a name character string indicating the facility name, and the center line of black (1A1D1A) is surrounded by a white (FFFFFF) contour line and displayed. In addition, the icon indicating the factory is displayed above the character string "Marusan Eye". It is an icon imitating the factory building, and the part corresponding to the outer wall of the factory is light gray (E8E7E7), and the window of the factory The part corresponding to is drawn in light blue (69CBD6).

The company icon displays the logo of the company such as a chain store as an icon, and its pattern and color are the patterns and colors determined by the company. When the logo itself is multicolored, the company icon is also multicolored using the same color as the logo. For example, in the example of FIG. 1, a company icon indicating the position of the gas station of Idemitsu is displayed near the top of the "avoidance area" button. This company icon is displayed in red (CE0008) on a white background.

In the conventional navigation device, the map element, the information display, and the button display are colorfully displayed in various colors in one screen as described above.

This also applies to the guidance screen as shown in FIG. FIG. 2 is an example of a conventional navigation device in which a map display area is provided on the left side and a guidance display area is provided on the right side for display. The map display area in FIG. 2 is displayed in various colors as in FIG. In the guide display area in the figure, three guides are displayed on a black (060F17) background. The guide is white (FFFFFF) on the background area of dark blue (062773) or blue (1786CE) and white (FFFFFF) indicating the name of the next intersection and the distance to the intersection and the passing section (direction of travel). White arrows (FFFFFF) are displayed on the dark blue (212421) or blue (1879BD) ground that indicates the arrow and the direction of travel of each lane.

The same applies to the menu screens shown in FIGS. 3 to 5. 3 shows a navigation menu "navi menu" screen of the conventional navigation device, FIG. 4 shows a "route menu" screen of the conventional navigation device, and FIG. 5 shows a setting menu "setting menu" screen of the conventional navigation device. The navigation menu "navi menu" screen of FIG. 3 is a screen displayed when a touch on the "MENU" button of FIG. 1 is detected. The "route menu" screen of FIG. 4 is a screen displayed when a touch on the "route" button of the navigation menu "navi menu" screen of FIG. 3 is detected. The setting menu “setting menu” screen of FIG. 5 is a screen displayed when a touch on the “setting” button of the navigation menu “navi menu” screen of FIG. 3 is detected. When the touch of the "map" button on the upper left of the navigation menu "navi menu" screen of FIG. 3 is detected, the display transits to the map screen of FIG. 1 and the upper left of each screen of FIG. 4 and FIG. When a touch on the "return" button is detected, the screen transits to the navigation menu "navi menu" screen of FIG.

The navigation menu "navi menu" screen of FIG. 3 is divided into an upper menu bar and a lower window. The menu bar has buttons for "Map" and "End" that are framed in black (423842) on a gray (B5B6B5) background. The “Map” and “End” buttons have dark blue (081C52) characters (“Map” and “End”) and figures displayed on a gray (B5B6B5) background. The lower window has six buttons on a black (292C29) background. The six buttons are composed of a dark background (292C39) near the center, a gradation background where the color becomes lighter toward the outer light gray (CECFD6), and letters and figures arranged near the center. Characters are drawn in white (FFFFFF), and figures are white (FFFFFF), gray (C6CBCE), pink (E73094), blue (5286FF), emerald green (31E3E7), dark green (29515A), yellow (F7BA18). , Is composed of patterns drawn by combining colors such as purple (7B55F7). The "route menu" screen in Fig. 4 and the setting menu "setting menu" screen in Fig. 5 have the same configuration, but the color used for the design in the "route menu" screen in Fig. 4 is yellow (F7BA18). As for the color used for the pattern on the setting menu "setting menu" screen of FIG. 5, purple (7B55F7) is used.

JP-A-5-173480 JP 2012-126285 A

Since the conventional colorful and colorful display as described above has a sense of reality and is easy to see and understand, it has been suitable for the taste and convenience of many user groups such as the family layer, On the other hand, the inventors of the present invention, for example, lack a sense of luxury, a sense of the near future, and a coolness, and do not meet the tastes of some user groups, such as people riding a sports car or singles. I found it. The present inventors have also found that the conventional colorful and colorful display has a problem that it does not match a monotone-based interior such as in a luxury car or an interior with a sense of the near future. Further, an electronic device that displays information such as a map in monotone is known (Patent Document 2), but the monotone display is like a black and white television, and it is possible to obtain a sense of luxury, a sense of near future, and coolness. There was a problem that it could not be done and it did not match the interior of luxury cars.

The present application discloses an invention that addresses all or part of the above problems or other problems.

The present application discloses, for example, the invention described in each of the following configuration examples.

<Structure example 1>
An electronic device that includes control means for displaying an image on a screen display unit and that can be installed in a vehicle so that a person in the vehicle can visually recognize the display unit,
The electronic device is characterized in that the control means has a sci-fi two-tone display function that is a function of displaying the image in two-tone.

In this way, the user can display a screen with a feeling of luxury, near-future, and coolness, and a screen that suits the preferences of the user population such as people in sports cars and singles. May be displayed, and/or the user may feel as if displaying an image screen that matches the interior of a luxury car. The two-tone display is preferably represented by two shades of chromatic color and light and dark.

The two-tone display is preferably represented by achromatic shades of white, black, and gray and a shade of light in addition to the shades and shades of two chromatic colors. By doing so, it is possible to perform an easy-to-see display using white, black, and grey, which have high distinguishability with respect to two chromatic colors, in a screen image having a high-class, near-future, and cool feeling.

The inventors have found that the two chromatic colors are green and blue because it is possible to more strongly express a sense of luxury, a sense of the near future, and coolness. The inventors of the present invention, when the two-tone display is expressed by green, blue and mixed color lightness/darkness, or green, blue and mixed color lightness/darkness and white, black, and grey, display a high-class feeling, a near sense. We have found that the future and coolness can be particularly strongly expressed, and that lowering the brightness of green, blue, and mixed colors can further enhance the sense of luxury, the near future, and coolness.

The inventors have also found that it is better not to use red in the image screen, or to reduce the use of red as much as possible, because it is possible to more strongly express a sense of luxury, a sense of the near future, and coolness. The inventors have also found that if the two chromatic colors are cold colors, it is possible to more strongly express a sense of luxury, a sense of the near future, and coolness. The inventors should also not use warm colors in the screen image or reduce the use of warm colors as much as possible so that a high-class feeling, near future feeling, and coolness can be more strongly expressed. Found. The inventors also strongly expressed a sense of luxury, near-future, and coolness by not using primary colors and/or pastel colors in the image screen or by reducing the use of primary colors and/or pastel colors as much as possible. I found it good because I could do it. The inventors have also found that lowering the brightness of an image is preferable because it can more strongly express a sense of luxury, a sense of the near future, and coolness.

The electronic device may be a vehicle-mounted electronic device such as a navigation device or a radar detector that is installed and used in a vehicle. The screen display unit is an LCD (Liquid Crystal Display), organic ELD (
A screen such as an organic electroluminescent display) or a CRT (cathode ray tube) may be used. The control means may be a computer having a storage device such as a CPU and a RAM.

<Structure example 2>
The image displayed by the sci-fi two-tone display function includes a background and buttons,
An electronic device, wherein the brightness of the button is higher than that of the background.

By doing so, the user can feel as if the button is lifted up, and the user can feel that the image has a stereoscopic effect and the image has a strong sense of the near future. The present inventor has found that it is possible to make an image having a three-dimensional effect as if the button is lifted up by making the brightness of the button higher than the background, since the darker the object is, the darker it is. .. In addition, this makes it possible to make the buttons stand out. The background should be the background of the button.

<Structure example 3>
The image displayed by the two-tone scifi display function includes a background and buttons,
The electronic device, wherein the button is translucently arranged on a front layer of the background.

By doing so, it is possible to further strengthen the sense of the near future. For example, the image displayed by the two-tone sci-fi display function may be an image with an alpha channel, and the button may be displayed semi-transparently by setting the alpha value of the button to an appropriate value between 0% and 100%. The background should be the background of the button.

If the backgrounds of the configuration examples 2 and 3 are maps, for example, the electronic device can be made to function as a navigation device or a radar detector. If the background of each of the configuration examples 2 and 3 is a pattern including a world map, for example, the image can be a menu screen with a sense of near future and coolness. The buttons of the configuration examples 2 and 3 may be configured such that, when operated by the user, the electronic device executes the function assigned to the button. The image may be composed of multiple layers. It is preferable that the layer for drawing the background and the layer for drawing the button are separate layers, and the layer for drawing the button is arranged in front of the layer for drawing the background.

<Structure example 4>
An electronic device, wherein the background is an image drawn by using a perspective method.

In this way, the button looks like it is floating in the air on the front side of the background with a three-dimensional effect, and it is possible to obtain an image with a near-future feeling and a strong coolness. The background drawn using the perspective method may be drawn using the perspective method at the time of drawing. For example, the background drawn by using the perspective method may be drawn by calculation at the time of drawing like CG, but the background drawn by using the perspective method in advance is stored in the storage unit in the form of, for example, a bitmap. What is stored may be read out and displayed.

<Structure example 5>
The image displayed by the two-tone sci-fi display function includes a plurality of display elements,
An electronic device comprising: the plurality of display elements including a light-emitting display element that is a display element having high brightness at the center and lower brightness as the distance from the center increases.

By doing so, it is possible to make the user feel as if the light emitting display element is shining, and it is possible to enhance the near future feeling of the image. A point light source, a line light source, or the like has the brightest center and becomes darker as it goes away from the center. It is good for the user to feel as if the display element itself is emitting light. For example, when the image displayed by the two-tone sci-fi display function includes a map, roads in the map, characters and patterns on display elements such as buttons and icons on the map, contours and frames of these display elements, and light emitting display elements It is good to do. When the road in the road map is used as the light emitting display element, the road appears to be emitting light, and the near future feeling is increased, which is particularly preferable.

<Structure example 6>
The control means is
A color display function for displaying the image in color,
An electronic device further comprising a display switching function for switching between display by the two-tone sci-fi display function and display by the color display function according to a user's operation.

By doing so, the user can select the image display by the two-tone display function and the image display by the color display function according to his/her preference, and thus it is possible to provide the image that suits the preference of a wider user group. .. The color display may be, for example, a multicolor display using all RGB or a colorful display. For example, in the case of an electronic device such as a navigation device that displays a map of the place where the user is currently traveling as an image, when the user is traveling on a road that the user is familiar with or in an area where the user is familiar, two-tone By displaying it, it is possible to make the image match the interior of the user's vehicle, but on the other hand, when the user is traveling on a land that is not familiar to the user, the display should have a realistic color display and be easy to understand. This makes it easier to understand information about the land that you are not familiar with.

<Structure example 7>
The image displayed by the two-tone display function and the color display function includes a background and an icon arranged in a layer on the front side of the background,
The color display function makes the icon opaque and arranges it on the background,
In the two-tone display function, the electronic device is characterized in that the icon is made transparent and arranged on the background.

In this way, the amount of information provided to the user is increased by displaying the icon in the image displayed by the color display function, while the icon is made transparent in the image displayed by the two-tone sci-fi display function. Is good because it is simple.

In particular, when the icon is multicolored and/or colorful, it can be prevented that the icon impairs the high-class feeling, near-future feeling, and coolness of the image. For example, if the background is a map and the data of the icon of the colorful and colorful color scheme is incorporated in the map display software (program or data), without changing the drawing process of the icon of the map display software. , The icon can be hidden simply by making it transparent. If the background is a map, and the icon is, for example, a school, kindergarten, nursery school, post office, fire station, police station, factory, shrine, temple, parking lot, company, etc. It would be nice to be able to view the locations of these facilities at.

For example, the image displayed by the two-tone sci-fi display function and the color display function is an image with an alpha channel, the alpha value is 100% when the icon is transparent, and the alpha value is 0 when the icon is opaque. It is good to use %.

The color display function in the configuration example 7 may be omitted. For example, the following configuration example 7-1 may be used.
<Structure example 7-1>
The image displayed by the sci-fi display function includes a background and an icon arranged in a layer on the front side of the background,
In the two-tone display function, the electronic device is characterized in that the icon is made transparent and arranged on the background.

By doing this, for example, when the background is a map and the data of the icon of the colorful and colorful color scheme is incorporated in the map display software (program or data), the icon of the map display software is drawn. The icon can be hidden simply by making the icon transparent without changing the processing. For example, the configuration example 7-1 may be adopted in any of the configuration examples 1 to 5.

<Structure example 8>
The icon belongs to one of the first and second categories,
The two-tone scifi display function is
The icon belonging to the first category is made transparent and arranged on the background,
The electronic device, wherein the icon belonging to the second category is made opaque and arranged on a background.

By doing so, it is possible to reduce the reduction in the information amount of the image displayed by the two-tone sci-fi display function. For the color display function, for example, icons of both the first and second categories may be opaquely arranged on the background.

For example, icons that are colorful and have a colorful color scheme, or icons that are prohibited from changing the default display color or that are not desirable are classified into the first category, and other icons are classified into the second category. Good to do. For example, in the case of an image including a map, a company icon indicating a company such as a gas station, a restaurant, a hamburger shop, a convenience store, and a bank is a reproduction of the company logo design, and the color defined by each company is As they can't be changed to different colors, we classify these company icons into the first category, other than that, eg school, kindergarten, nursery, post office, fire department, police station, factory, shrine, temple, parking lot. It is preferable to classify icons indicating "etc." into the second category.

<Structure example 9>
The images displayed by the two-tone scifi display function and the color display function include a map drawn based on map data including roads of the first and second types,
The color display function displays the first and second types of roads on the map,
The two-tone scifi display function displays the first type road on the map and does not display the second road on the map.

By doing so, it is possible to make the image displayed by the two-tone display function look high-class, near-future, and cool, and it is possible to simplify the map displayed by the two-tone display function. Is good because it makes it easier to see the map. For example, the first type of road may be a highway or an arterial road, and the second type of road may be a narrow street. For example, the second type of road may be a narrower road than the first type of road. For example, the road of the first type may be a main road more than the road of the second type.

<Structure example 10>
A program for causing a computer to realize the functions of the electronic device according to any one of Configuration Examples 1 to 9.

The configurations described in the above configuration examples and the like may be combined and configured as long as no contradiction occurs. Further, it is advisable to construct a new configuration example by arbitrarily combining the constituent elements described in each configuration example and the like within a range in which no contradiction occurs.

Explanatory drawing which shows the example of the navigation screen of a color display. Explanatory drawing which shows the example of the guide screen of a color display. Explanatory drawing which shows the example of the navigation menu screen of a color display. Explanatory drawing which shows the example of the route menu screen of a color display. Explanatory drawing which shows the example of the setting menu screen of a color display. 1 shows a navigation device 1 according to the present invention. Explanatory drawing which shows the cradle 20. Explanatory drawing which shows the system configuration of the navigation apparatus 1. Explanatory drawing which shows the example of the category of a map icon. Explanatory drawing which shows the example of a main menu screen. Explanatory drawing which shows the example of the navigation screen of a two-tone display. Explanatory drawing which shows the other example of the navigation screen of a two-tone display. Explanatory drawing which shows the example of the guidance screen of two-tone display. Explanatory drawing which shows the example of the navigation menu screen of a two-tone display. Explanatory drawing which shows the example of the "route menu" screen of a two-tone display. Explanatory drawing which shows the example of the setting menu screen of two-tone display.

Hereinafter, an electronic device and a program thereof according to an embodiment of the present invention will be described with reference to the accompanying drawings. In this embodiment, the case where the electronic device is the navigation device 1 that can be installed in the vehicle will be described as an example.

The colors displayed on the screen in the following description may be described by a code. This code is expressed in the form of (RRGGBB) by arranging two-digit hexadecimal numbers (possible range corresponds to decimal numbers 0 to 255) in order of red, green, and blue (RGB) which are the three primary colors of light. For example, (000000) indicates black because red, green and blue have the lowest brightness, and (FFFFFF) indicates white, which is the maximum brightness for both red, green and blue. In (FF0000), red has the maximum luminance (FF in hexadecimal number, 255 in decimal number), and green and blue have red luminance because the luminance is zero.

6(a), 6(b) and 6(c) show the navigation device 1 according to the present invention from the front, the rear and the bottom. The navigation device 1 has a main body 2 having a size and shape that can be carried.

A display unit 3 of a display device 32 (described later) is arranged on the front surface of the main body 2, and a power/menu button 4, a TV button 5, and a TV receiving antenna 6 are arranged on the upper surface of the main body 2. A MicroSD card insertion slot 7, a mini B-CAS card insertion slot 8, a DC jack 9, a power lamp 10, a headphone terminal 11, a reset button 12, an external antenna terminal 13 and the like are arranged on the side surface and the bottom surface of the main body 2. ing.

The power/menu button 4 can be turned on/off by long pressing. When the power/menu button 4 is operated while the power is on, a main menu described later can be displayed. The TV button 5 is a button for switching to TV reception with one touch. The DC jack 9 is for receiving power from a cigar socket or an AC adapter via a cable (not shown). The power lamp 10 lights up in green when the navigation device 1 is powered on. The headphone terminal 11 can be connected to a plug of an audio device such as an external headphone (not shown). The navigation device 1 can be reset by operating the reset button 12 when it does not work or malfunctions. A film antenna set for full segment (not shown) can be connected to the external antenna terminal 13.

FIG. 7 shows a cradle 20 for removably installing the navigation device 1 in the vehicle so that the display unit 3 can be visually recognized by a person in the vehicle compartment. The cradle 20 has a pedestal portion 21, a lever 22, a mounting portion 23, a removal button 24, an arm 25, and a lock 26. The pedestal portion 21 has a suction cup on the bottom surface, and when the pedestal portion 21 is placed at an appropriate place in the vehicle interior such as a dashboard and the lever 22 is pushed down while being pressed from above, the cradle 20 is fixed by the suction force of the suction cup. It The mounting portion 23 has a shape and structure that engages with the engaging portion 14 of the main body 2. The main body 2 can be engaged with the mounting portion 23 by aligning the positions of the mounting portion 23 and the engaging portion 14 and pushing in the main body 2. When the removal button 24 is pressed, the engagement is released, and the main body 2 can be removed from the cradle 20. The mounting portion 23 is attached to the tip of an arm 25 connected to the pedestal portion 21 via a swing support mechanism such as a ball joint. Since it is a ball joint, the angle of the main body 2 mounted on the mounting portion 23 can be rotated to an arbitrary angle in the three-dimensional direction. The rotation of the ball joint can be fixed by tilting the lock 26.

FIG. 3 shows a system configuration of the navigation device 1. The navigation device 1 includes a control unit 31, a display device 32, a storage unit 33, a GPS receiver 34, a TV tuner 35, a speaker 36, a MicroSD card reader 37, a mini B-CAS card reader 38, a wireless receiver 39, and microwave reception. A device such as a container 40 is provided.

The control unit 31 is composed of a computer including a CPU, a ROM, a RAM, various peripheral circuits, an interface and the like. Although not shown, the control unit 31 includes a power/menu button 4, a TV button 5, a TV receiving antenna 6, a DC jack 9, a power lamp 10, a headphone terminal 11, a reset button 12, and an external antenna in addition to the above-mentioned devices. The terminal 13 and the like are connected. The control unit 31 realizes various processes described below by expanding the OS recorded in the ROM and the program stored in the program storage unit 33a on the RAM and executing the program.

The display device 32 is a touch panel type display device, displays an image on the display unit 3 under the control of the control unit 31, and transmits an operation signal based on a touch operation on the display unit 3 to the control unit 31.

The storage unit 33 is composed of an internal memory such as HD, EEPROM, NVRAM, etc., a detachable external memory such as a micro SD memory card, etc. The storage unit 33 has a program storage unit 33a, a map database 33b, and a road network information storage unit 33c.

The program storage unit 33a stores various programs used to realize various functions described below.

The map data for displaying the map image on the display device 32 is stored in the map database 33b. The map data includes section data, road data, icon data, name character string data, and the like.

The division data is data for drawing a district division polygon, a facility division polygon, and the like on a map, and is data that defines the latitude and longitude, the shape, the display color, and the like of the district division, the facility division, and the like.

The road data is data for drawing a road on a map, and includes data showing a latitude route of the road and data showing types of roads such as highways, national roads, prefectural roads, and narrow streets.

The icon data is data for drawing various map icons on the map. The icon data indicates an identification number assigned to each type of map icon, image data in a format such as a bitmap that defines the shape and color of each map icon, and the position on the map where each map icon should be placed. It includes latitude and longitude data and category data that defines the category of each map icon.

FIG. 9 shows an example of categories. In the illustrated example, the map icons having the identification numbers 1 to 100 are classified into the category of general facility icons, and the map icons having the identification number of 101 or later are classified into the category of the company icon. In the category of company icons, map icons that cannot be changed to colors different from those specified by gas stations, restaurants, hamburger shops, convenience stores, banks, companies, etc. are classified, and other map icons (For example, icons indicating schools, kindergartens, nurseries, post offices, fire stations, police stations, factories, shrines, temples, parking lots, etc.) are classified as general facility icons.

The name character string data is data for writing the name character string on the map. The name character string data includes the text of the name character string and the latitude/longitude data indicating the position on the map where the name character string should be arranged.

The road network information storage unit 33c stores data necessary for searching for a guide route. The search for the guide route will be described later.

The GPS receiver 34 receives GPS signals from GPS satellites and outputs current position (longitude/latitude) information to the control unit 31. The TV tuner 35 causes the display device 32 and the speaker 36 to output the TV image and sound based on the TV broadcast radio wave received by the TV receiving antenna 6 or the external antenna terminal 13. The speaker 36 outputs sound under the control of the control unit 31. The MicroSD card reader 37 performs writing/reading with respect to the MicroSD card inserted in the insertion slot 7. The mini B-CAS card reader 38 reads the mini B-CAS inserted in the insertion slot 8.

The functions of the navigation device 1 will be described below. The following functions are realized by the control unit 31 executing a program stored in the program storage unit 33a or the like to control various devices of the navigation device 1. The navigation device 1 has a guide route search function, a main menu function, a display switching function, a color display function, a two-tone display function, a radar scope display function, a GPS alarm function, a radar wave alarm function, and a wireless alarm function.

The guide route search function is a function of searching a route (route) from one position to another position by using the road network information stored in the road network information storage unit 33c. When executing the guide route search function, the control unit 31 causes the display unit 3 to display a destination setting menu (not shown). This destination setting menu includes a telephone number search button, an address search button, a facility name search button, etc. that prompt the user to select a destination setting method, and the user can touch the display unit 3 by touch operation. Select the destination setting method.

For example, when the telephone number search button is pressed, the control unit 31 displays a telephone number input screen and acquires the position information corresponding to the input telephone number from the road network information storage unit 33c. When the address search button is pressed, an address selection input screen is displayed, and position information corresponding to the input address is acquired from the road network information storage unit 33c. The control unit 31 sets the acquired position information as the position information of the destination, and obtains the route from the current position to the destination based on the road network information stored in the road network information storage unit 33c. As a method for calculating the guide route, for example, a known method such as the Dijkstra method can be used. The control unit 31 displays the calculated guide route together with the surrounding map. For example, the route from the current position to the destination is displayed in a predetermined color as a guide route.

The main menu function is that the control unit 31 causes the display unit 3 to display on the display unit 3 when the navigation device 1 is powered on and when the power/menu button 4 is operated while the navigation device 1 is powered on. This is a function of displaying the main menu shown in FIG. As illustrated, the control unit 31 displays a plurality of buttons such as a navigation button, a scifi navigation button, and a television button on the main menu.

The sci-fi navigation button is a button for switching the display mode of the navigation device 1 between a color display mode and a two-tone display mode. The sci-fi navigation button will be described later.

The navigation button is a button for displaying a navigation screen, and when this button is operated, the control unit 31 displays the navigation screen in the display mode (color display mode or two-tone display mode) at that time.

The TV button is a button for the user to watch TV, and when this button is operated, the control unit 31 causes the display unit 3 to display the TV screen received by the TV tuner 35.

The display switching function is a function that the control unit 31 switches the display mode of the navigation device 1 between the color display mode and the two-tone display mode when the sci-fi navigation button is operated in the main menu of FIG. 10. The color display mode is a mode in which the control unit 31 causes the display unit 3 to display the navigation screen, the guidance screen, the navigation menu screen, the route menu screen, and the setting menu screen in color, and the two-tone display mode is in the control unit 31. In the display unit 3, a navigation screen, a guidance screen, a navigation menu screen, a route menu screen, and a setting menu screen are displayed in two-tone mode. The display mode at the time when the power of the navigation device 1 is turned on is the color display mode, and the control unit 31 selects the two-tone display mode→the color display mode→the two-tone display mode each time the sci-fi navigation button is operated. To switch the display mode. Note that the navigation screen, the guide screen, the navigation menu screen, the route menu screen, and the setting menu screen are images with an alpha channel in both color display and two-tone display.

The color display function has a color navigation display function, a color guide display function, and a color menu display function.

The color navigation display function is a function in which the control unit 31 causes the display unit 3 to display the navigation screen in color when the navigation device 1 is in the color display mode. An example of a color-displayed navigation screen is shown in FIG. 1, and its display mode is as described in detail in the background art section.

The color guide display function is a function that the control unit 31 causes the display unit 3 to display the guide screen in color when the navigation device 1 is in the color display mode. An example of a color display guide screen is shown in FIG. 2, and its display mode is as described in detail in the background art section.

The color menu display function is a function for the control unit 31 to display the navigation menu screen, the route menu screen, or the setting menu screen in color on the display unit 3 when the navigation device 1 is in the color display mode. Examples of the color-displayed navigation menu screen, route menu screen, and setting menu screen are shown in FIGS. 3 to 5, and the display modes are as described in detail in the background art section.

The color navigation display function, the color guide display function, and the color menu display function set the alpha value of the alpha channel to 0% (transparency 0%) for all the map icons including the company icon and all the buttons in the above screens. indicate.

The two-tone display function has a two-tone navigation display function, a two-tone guide display function, and a two-tone menu display function.

The two-tone navigation display function is a function for the control unit 31 to display the navigation screen on the display unit 3 in two-tone when the navigation device 1 is in the two-tone display mode. An example of a two-tone display navigation screen is shown in FIG.

The control unit 31 draws a map on the back layer on the two-tone display navigation screen, and displays information and buttons on the front layer. The map is displayed on the entire screen, and the information display and button display are basically placed on the map in the peripheral part of the screen.

In drawing a map, the control unit 31 draws a district division polygon area, which is a polygon indicating a district, on the back using the division data of the map database 33b, and on top of that, the road data and division data of the map database 33b. , The icon data and the name character string data are used to draw a road, a facility polygon area, a general facility icon, a company icon, and a name character string in order from the bottom.

In the example of FIG. 11, the control unit 31 displays all the areas corresponding to the first to third area areas in FIG. 1 in black (000000) as the area division polygons, and is divided into left and right forks from the lower left of the screen. The river area is displayed in dark blue (004080), and the facility division polygon of the area showing the building such as the factory of “Marusan Eye” in FIG. 1 is displayed in dark purple (202040).

In the example of FIG. 11, the control unit 31 displays highways, ordinary roads and narrow streets as roads. Two generally parallel roads extending upward from the "current location" button at the bottom right of the screen of Fig. 11 are highways, the road on the right is the lane going down from the top of the screen, and the road on the left is the bottom of the screen. Lanes from the top to the top, and the control unit 31 displays these in dark green (004040) and light green (20C0C0), respectively. Further, the diagonal road passing near the upper right of the "point registration" button and near the upper right of the "route" button is a national road of the general road, and the control unit 31 displays this in green (00FF00). Roads such as lines drawn in a mesh shape are narrow streets. The control unit 31 draws these narrow streets so that the vicinity of the center is white (FFFFFF) and the distance from the center becomes light green (9EDBE7)→dark green (006377). In this way, by increasing the brightness at the center of the narrow street and decreasing the brightness as it goes away from the center, it is possible to make the narrow street appear to be shining, and it is possible to obtain an image with a high sense of near future. In addition, the road heading upward from the current position icon and then to the lower left direction indicates the guide route searched by the guide route search function, and the control unit 31 draws this in light green (20C080).

The control unit 31 further draws a map icon and a name character string including a general facility icon and a company icon on the front side of the layer of the district division polygon area and the road image.

In FIG. 11, the control unit 31 has two general facility icons, one in the upper right corner of “Registration” on the national road of the general road and the other where the letters “Iwazu Ogosho” are displayed on the national road. The traffic signal icon is drawn, and the factory icon is drawn near the center of the screen and inside the facility division polygon of "Marusan Eye" on the left side. The traffic light icon imitates the shape of a traffic light, and is a green (20A0C0) circle filled in a white (FFFEFA) oval frame with a green color (28A5B0). The factory icon is an icon imitating a factory building, and the portion corresponding to the outer wall of the factory is light blue (5ABCC0) and the inside thereof is drawn in white (FFFFFF). The control unit 31 draws these general facility icons with the alpha value of the alpha channel set to 0% (transparency 0%).

Further, the control unit 31 draws the company icon with the alpha value of the alpha channel set to 100% (transparency 100%). This makes the company icon transparent and invisible. For example, in reality, as in Fig. 1 (navigation screen with color display), the company icon of the Idemitsu gas station is drawn near the top of the "avoidance area" button, but the alpha value is set to 100%. The company icon is hidden because it is drawn. The company icon cannot be changed to a color different from the one specified by each company, so hiding the colorful company icon may impair the luxury, near future, and coolness of the image. To be prevented. Further, since the company icon can be hidden only by changing the alpha value, it is possible to hide the company icon without changing the data of the map database 33b or the program and processing for displaying the map. it can.

The control unit 31 performs information display and button display on the two-tone display navigation screen as follows. For example, in the navigation screen of FIG. 11, the character "10:31" indicating the current time is drawn in the upper left corner of the screen on a white (FFFFFF) translucent black (000000) rectangular background area. On the right side, a strip-shaped semi-transparent black (000000) rectangular background area is provided in the left-right direction, and consists of a rectangular area of the Japanese map drawn in white (FFFFFF) on a blue background (0080C0) on the background area. The icon and the text "Niki-cho, Okazaki-shi, Aichi" showing the current position are drawn in white (FFFFFF).

The control unit 31 further displays a map scale change button below the clock on the upper left of the screen. The control unit 31 uses the scale change button, the compass figure indicating the north direction and the character "100 m" (the scale of the currently selected map) is white (FFFFFF) on the light green (60A080) translucent background area. ) Is displayed.

The control unit 31 displays an information display area indicating the GPS reception status under this button, and the information display area is white (FFFFFF) and indicates the character "GPS" and the current GPS reception level. Three bars are drawn on a slightly transparent black (204040) rectangular background area.

The control unit 31 sets the alpha value of the alpha channel of the background area of the information display to an appropriate value between 0% and 100% to display the background area of the information display semitransparently.

The control unit 31 displays four buttons on the right side and the lower side of the screen, respectively. The four buttons on the right side of the screen are, in order from the top, "surrounding spots," "peripheral facilities," "make waypoints," and "make destinations." The four buttons on the lower side of the screen are "MENU", "point registration", "avoidance area", and "current location" in order from the left. These eight buttons are displayed by a semi-transparent light blue (60A080) or light blue (80C0C0) background area, and a white (061E52) icon and characters on the background area. In this way, by making the button (background area) semitransparent, an image with a high sense of near future can be obtained. The control unit 31 sets the alpha value of the alpha channel of the background area of each button to an appropriate value between 0% and 100% to display the background area of the button in a semi-transparent manner.

In addition to such information display and button display, the control unit 31 displays the current position icon indicating the current position on the map. In FIG. 11, the current position icon is displayed between the “MENU” and “point registration” buttons on the lower right of the screen. The icon is drawn as a light green (20C0C0) triangle with a white (A6CAF0) border.

FIG. 12 shows another example of the two-tone display navigation screen.

The two-tone guide display function is a function in which the control unit 31 causes the display unit 3 to display a guide screen in two-tone when the navigation device 1 is in the two-tone display mode. FIG. 13 shows an example of a two-tone display guide screen.

As shown in the figure, the control unit 31 displays the guide screen by providing a map display area on the left side and a guide display area on the right side. The map display area is the same display as in FIG. Three guidances are displayed in the guidance display area. For guidance, white (FFFFFF) characters and arrows indicating the name of the next intersection, the distance to the intersection, and the passage section (direction of travel) on a semi-transparent dark blue (062773) or light green (1786CE) background area. A white (FFFFFF) arrow is displayed on a blue area (292429) or a green area (187DBD) indicating the traveling direction of each lane. By making the background area of the guide semi-transparent, an image with a high sense of the near future can be obtained. The control unit 31 sets the alpha value of the alpha channel of the background area to an appropriate value between 0% and 100% to display the background area semitransparently.

The two-tone menu display function is a function for the control unit 31 to display a two-tone display navigation menu screen, route menu screen, and setting menu screen on the display unit 3 when the navigation device 1 is in the two-tone display mode. 14 to 16 show examples of a two-tone display navigation menu screen, route menu screen, and setting menu screen. The two-tone menu display function detects the touch of the "route" button on the navigation menu screen of Fig. 14 when the touch of the "MENU" button is detected on the navigation screen of Fig. 11. 15 is displayed on the display unit 3 when the touch of the “setting” button on the navigation menu screen of FIG. 14 is detected.

On the navigation menu screen, the root menu screen, and the setting menu screen, the control unit 31 draws a background image on the back layer, and draws a plurality of buttons and information display on the front layer. For example, the background images on the navigation menu screens, route menu screens, and setting menu screens of FIGS. 14 to 16 are patterns drawn in light blue (10C3CE) on the background color of dark green (001010). The pattern is composed of a world map pattern and a geometric pattern drawn according to perspective (a pattern in which a lattice pattern and a circular pattern whose width expands toward the lower side of the screen are combined).

In the navigation menu screen of FIG. 14, the control unit 31 causes the upper part of the screen to display white (FFFFFF) “Navi menu” characters as well as “map” and “end” buttons, and six buttons on the lower window. Is displayed. The "Map" button is composed of a green (00E3EF) frame and a white (FFFFFF) map of Japan located inside the frame and letters. The "End" button is composed of a green (00DBE7) frame and white (FFFFFF) characters arranged inside it.

The six buttons in the window are composed of Japanese/English characters and graphics placed in a semi-transparent background area. The background area has a gradation of light green (188E94) near the center and darker toward the outer dark green (082C39). The control unit 31 sets the alpha value of the alpha channel of the background area to an appropriate value between 0% and 100% to make the background area semitransparent. Japanese characters are white (FFFFFF) and English characters are light green (218A94). The figure is drawn with a gradation pattern of white (FFFFFF), light green (18D3DE) and its intermediate color.

The root menu screen of FIG. 15 and the setting menu screen of FIG. 16 have the same configuration, but the control unit 31 displays white (FFFFFF) “root menu” in the upper left part of the screen in the root menu screen of FIG. Display the "Return" button, and display the "Current Value" button in the lower right corner of the screen where the white (FFFFFF) "Current location" characters and icon mark are placed in the semi-transparent light green (292C39) background area. In the setting menu screen of FIG. 16, a white (FFFFFF) “setting menu” character and a “return” button are displayed in the upper left part of the screen, and a semitransparent light green color (292C39) is displayed in the lower right part of the screen. In the background area of, the "current value" button with white (FFFFFF) characters "current location" and icon mark is displayed. Buttons in the background area and window of the root menu screen of FIG. 15 and the setting menu screen of FIG. 16 are the same as those of the navigation menu screen of FIG. 14 except that the number of buttons is five on the root menu screen of FIG. The same is true. The control unit 31 sets the alpha value of the alpha channel of the background area to an appropriate value between 0% and 100% on the root menu screen of FIG. 15 and the setting menu screen of FIG. To

As described above, on the two-tone display navigation menu screen, route menu screen, and setting menu screen, buttons and background areas are drawn semitransparently in the layer on the front side of the background, so it should be a screen with a near future feeling. You can Also, since the background is a map of the world map, it is possible to create a screen with a sense of near future and coolness. Also, since the background is an image drawn using the perspective method, the button looks like it is floating in the air on the front side of the background with a stereoscopic effect, and it is possible to have a screen with a near future feeling and a coolness. it can.

In addition, since the navigation screen, guide screen, navigation menu screen with two-tone display, route menu screen, and setting menu screen displayed by the two-tone display function are two-tone display, the user can feel a sense of luxury, near-future, and cool. You can enjoy full-sized images, match the tastes of users in sports cars, singles, etc., and/or the user feels that the screen matches the interior of a luxury car. You can In addition, these screens are expressed in shades of light and shades of green and blue and achromatic shades of light and shades of white, black, and gray, and darkness, which enhances the sense of luxury, near-future sense, coolness, and distinguishability. High white, black and gray make the screen easier to see. These screens use less red, warm colors, primary colors, and pastel colors, and thus are more luxurious, near-future, and cooler.

In the radar scope display function, the control unit 31 uses the radar scope display function to display an alarm target object within a predetermined range (for example, within a range of about 1 km) from the current position detected by the GPS receiver 34 in the map database 33b. This is a function of performing a search based on the stored position information and displaying the relative positional relationship between the own vehicle and the alarm target on the display unit 3.

During execution of the radar scope display function, the control unit 31 displays a map on the display unit 3 and also displays an arrow-shaped own vehicle icon indicating the position of the own vehicle on this map. In addition, when an event occurs during execution of the radar scope display function (when a predetermined condition for reporting an alarm is satisfied), “L”, “RD”, “P”, “N”, etc. are displayed on the map. A POI icon having the characters is displayed to indicate the type and position of the alarm target. When an event occurs during execution of the radar scope display function, the control unit 31 performs control processing for executing any one of a GPS alarm function, a radar wave alarm function, and a wireless alarm function described below. ..

The GPS alarm function is such that the control unit 31 gives an alarm to the display unit 3 when the current position detected by the GPS receiver 34 and the position of the alarm target object stored in the map database 33b come close to a predetermined distance. Is a function to display. As a display mode of the alarm, for example, a POI icon indicating the position information of the alarm target is displayed on the map, or the alarm screen is displayed by being superimposed on the map screen currently displayed. At this time, the control unit 31 performs a process of outputting a sound indicating the type and distance of the alarm target such as “500 m ahead LH system” from the speaker 36, for example.

Examples of the alarm object of the GPS alarm function include a speed measuring device (loop coil, LH system, H system, radar type orvis, etc.), a mouse trapping area, a moving orvis area, a tracking type enforcement area, a temporary suspension enforcement area, an intersection. Control area, other control area, seat belt inspection area, alcohol inspection area, mobile phone inspection area, other inspection area, intersection monitoring point, signal neglect suppression system, highway traffic police force, N system, traffic monitoring system, police station, There are accident-prone areas, service areas, parking areas, highway oasis, highway length/continuous tunnels, highway radio reception areas, roadside stations, view point parking, parking lots, public toilets, etc.

The radar wave warning function displays an alarm on the display unit 3 when the control unit 31 detects a radio wave corresponding to a microwave of a predetermined frequency band emitted from the speed measuring device by the microwave receiver 40, and This is a function of outputting an alarm sound from the speaker 36. For example, when a microwave of a predetermined frequency band emitted by the speed measurement device is detected by the microwave receiver 40, a schematic diagram or a photograph of the radar is displayed on the display unit 3 as an alarm and "Radar. The voice “Caution” is output from the speaker 36.

The wireless alarm function is a function that the control unit 31 issues an alarm when the wireless receiver 39 receives a radio wave emitted from an emergency vehicle or the like so as not to hinder the traveling of the emergency vehicle. In the wireless alarm function, control wireless, car location wireless, digital wireless, small wireless, police system wireless, police phone, police activity wireless, wrecker wireless, helitere wireless, firefighting helitere wireless, firefighting wireless, emergency wireless, highway wireless , A frequency of a security radio is scanned, and when a radio is received at the scanned frequency, a schematic diagram indicating that the radio corresponding to the frequency stored for each radio type is received is displayed on the display unit 3 as an alarm screen. And the alarm sound indicating the wireless type is output from the speaker 36. For example, when the control radio is received, a voice is output such as “Control radio. Attention speed”.

As described above, the navigation device 1 includes the control unit 31 that displays an image on the display unit 3, and can be installed in the vehicle so that a person in the vehicle can visually recognize the display unit 3. It has a two-tone display function that is a function of displaying an image in two-tone. Therefore, the user can feel a sense of luxury, a sense of near future, and coolness, and can match the taste of the user group such as a person riding a sports car or a single person, and/or It is good because you can feel it as an image that matches the interior of the car.

The two-tone display is a display in which, in addition to two chromatic shades of light and shade, achromatic shades of white, black, and gray, and a shade of light. Therefore, it is possible to perform an easy-to-see display using white, black, and grey, which have high distinguishability with respect to two chromatic colors, in an image having a high-class feeling, a near-future feeling, and coolness.

The two chromatic colors are green and blue. Therefore, it is possible to express a sense of luxury, near future, and coolness more strongly. The two-tone display is a display represented by lightness and darkness of green, blue and a mixed color thereof, or lightness and darkness of green, blue and a mixed color thereof, and white, black and gray. Therefore, it is possible to express a feeling of luxury, near future, and coolness particularly strongly. Since the brightness of green, blue and mixed colors is low, it is possible to express a high-class feeling, near-future feeling and coolness.

Also, less red is used in the image. Therefore, it is possible to express a sense of luxury, near future, and coolness more strongly. The above two chromatic colors are cold colors. Therefore, it is possible to express a sense of luxury, near future, and coolness more strongly. Also, the use of warm colors in the image is small. Therefore, it is possible to express a sense of luxury, near future, and coolness more strongly. Also, the use of primary colors and/or pastel colors in the image is low. Therefore, it is possible to express a sense of luxury, near future, and coolness more strongly. Also, the brightness of the image is low. Therefore, it is possible to express a sense of luxury, near future, and coolness more strongly.

The navigation device 1 may be another electronic device such as a radar detector installed and used in a vehicle. The display unit 3 may be a screen such as an LCD (Liquid Crystal Display), an organic ELD (Organic Electroluminescent Display), and a CRT (Cathode Ray Tube).

The navigation screen, the guidance screen, the navigation menu screen, the route menu screen, and the setting menu screen displayed by the two-tone display function include a background and buttons, and the brightness of the buttons is higher than the background. Therefore, the user may feel as if the button is lifted up, and the user may feel a stereoscopic effect and a near future feeling. The present inventor has found that it is possible to make an image having a three-dimensional effect as if the button is lifted up by making the brightness of the button higher than the background, since the darker the object is, the darker it is. .. In addition, this makes it possible to make the buttons stand out. The background is the background of the button.

The navigation screen, guide screen, navigation menu screen, route menu screen, and setting menu screen displayed by the two-tone display function include a background and buttons, and the buttons are arranged in a semi-transparent layer on the front side of the background. .. Therefore, it is good that the sense of the near future can be further strengthened. These images displayed by the two-tone display function are images with an alpha channel, and the button is displayed semi-transparently by setting the alpha value of the button to an appropriate value between 0% and 100%. The background is the background of the button.

The background of the navigation screen and the guidance screen includes a map. Therefore, the electronic device can be made to function as a navigation device or a radar detector. The background of the two-tone display navigation menu screen, route menu screen, and setting menu screen is a pattern including a world map. Therefore, the image can be a menu screen with a sense of near future and coolness. The button in each image may be configured such that the navigation device 1 executes the function assigned to the button when operated by the user. The image may be composed of multiple layers. The layer for drawing the background and the layer for drawing the button are separate layers, and the layer for drawing the button may be arranged on the front side of the layer for drawing the background.

The backgrounds of the two-tone display navigation menu screen, route menu screen, and setting menu screen are drawn using the perspective method. Therefore, the button looks as if it is floating in the air on the front side of the background with a three-dimensional effect, and it is possible to obtain an image with a strong sense of near future and coolness. As the background drawn using the perspective method, the background drawn in advance using the perspective method stored in the storage means in the form of a bitmap or the like may be read and displayed.

Further, the navigation screen and the guidance screen displayed by the two-tone display function include a plurality of display elements, and the plurality of display elements include a narrow street, which is a display element having high brightness at the center and lower brightness as the distance from the center increases. Therefore, the user may feel that the narrow streets are shining, and the near future of the image may be enhanced. A point light source, a line light source, or the like is brightest in the center and becomes darker as it moves away from the center. Good. For example, the image displayed by the two-tone display function includes a map, and the roads on the map, characters and patterns on display elements such as buttons and icons on the map, and outlines and frames of these display elements are displayed by light emission. It should be an element. When the road in the road map is used as the light emitting display element, the road seems to be emitting light, and the near future feeling is increased.

The control unit 31 further has a color display function of displaying an image in color, and a display switching function of switching between display by the two-tone display function and display by the color display function according to a user operation. Therefore, the user can select the display of the image by the two-tone display function and the display of the image by the color display function according to his/her preference, so that it is possible to provide the image that suits the preference of a wider user group. The color display may be, for example, a multicolor display using all RGB or a colorful display. For example, when driving on a road that is familiar to the user or in an area that the user is familiar with, the user can display an image that matches the interior of the user's vehicle by using the two-tone display, while While traveling on a land that is not familiar to the user, the user can easily understand the information about the land that is not familiar to the user by providing a color display that is realistic and easy to understand.

The image displayed by the two-tone display function and the color display function includes a background and a map icon arranged in a layer on the front side of the background, and the color display function arranges the map icon on the background so that the map icon is opaque. Should make the map icon transparent and place it on the background. By doing this, by displaying the map icon in the image displayed by the color display function to increase the amount of information provided to the user, by making the map icon transparent in the image displayed by the two-tone display function, It's good because the image is simple.

In particular, when the map icon is multicolored and/or colorful, it is possible to prevent the luxury, near future, and coolness of the image from being impaired by the map icon. For example, if the background is a map and the map display software (program or data) contains data of map icons with a colorful and colorful color scheme, change the map icon drawing process of the map display software. Without making the map icon transparent, the map icon can be hidden. When the background is a map, if the map icon is, for example, a school, kindergarten, nursery school, post office, fire department, police station, factory, shrine, temple, parking lot, company, etc., the color display function will be displayed. It is good because the locations of these facilities can be displayed on the map.

The image displayed by the two-tone display function and the color display function is an image with an alpha channel. When the map icon is transparent, the alpha value is 100%, and when the map icon is opaque, the alpha value is It is good because it is 0%.

The image displayed by the scifi display function may include a background and a map icon arranged in a layer on the front side of the background, and the two-tone display function may arrange the map icon on the background by making the map icon transparent. By doing this, for example, if the background is a map and the map display software (program or data) contains data of map icons with a colorful and colorful color scheme, the map icon of the map display software The map icon can be hidden simply by making the map icon transparent without changing the drawing process of.

Also, the map icon belongs to either the first or second category, and the two-tone display function makes the company icon, which is the map icon belonging to the first category, transparent and arranges it on the background, and the second category. The general facility icon, which is a map icon belonging to, is made opaque and placed on the background. Therefore, the reduction in the information amount of the image displayed by the two-tone display function can be reduced. The color display function may place the map icons of both the first and second categories in an opaque background.

Icons with colorful and colorful color schemes or corporate icons that are prohibited to change the default display color or are not desirable are classified into the first category, and other general facility icons are classified into the second category. Good because they are classified. For example, a company icon indicating a company such as a gas station, a restaurant, a hamburger shop, a convenience store, or a bank is a reproduction of the company logo design, and may be changed to a color different from the color specified by each company. Since it is not possible to classify these map icons into the category of corporate icons, other than that, for example, icons indicating schools, kindergartens, nurseries, post offices, fire stations, police stations, factories, shrines, temples, parking lots, etc. It is good because they are classified into the categories of icons.

The navigation screen and the guidance screen displayed by the two-tone display function and the color display function include a map drawn based on map data including the first and second types of roads, and the color display function displays the first map on the map. It is preferable that the road of the second type is displayed and the two-tone display function displays the road of the first type on the map and does not display the second road.

By doing so, it is possible to make the image displayed by the two-tone display function look high-class, near-future, and cool, and it is possible to simplify the map displayed by the two-tone display function. Is good because it makes it easier to see the map. For example, the first type of road may be a highway or an arterial road, and the second type of road may be a narrow street. For example, the second type of road may be a narrower road than the first type of road. For example, the road of the first type may be a main road more than the road of the second type.

Although the preferred embodiments have been described above, the shapes, dimensions, materials, functions, operation modes, control modes, control parameters, operation modes, etc. of the devices, systems and programs or their elements, members, etc. in the above-described embodiments are examples. , And these can be changed.

For example, in the above embodiment, the case where the narrow streets in the two-tone navigation screen and the guidance screen are the light emitting display elements has been described, but other roads such as highways and national roads, map icons, buttons, or map icons. Characters and figures in buttons and buttons may be used as light-emitting display elements, and buttons and characters and figures in the two-tone display navigation menu screen, route menu screen and/or setting menu screen, and characters and figures in buttons are displayed as light-emitting elements. Good as an element.

Further, in the above embodiment, an example is shown in which all of the company icons are hidden in the two-tone display, but only a part of the company icons may be hidden, and in addition to the company icon, all or some of the general facilities are displayed. The icons may be hidden or all map icons may be hidden.

In the above embodiment, the alpha value of the alpha channel is set to 0% or a value between 0% and 100% to hide specific display elements such as company icons and buttons (or their background areas). Although the case where the display element is made semi-transparent is shown, the method of making the display element non-display or semi-transparent is arbitrary, and the display element may be made non-display or semi-transparent by another method.

Further, in the above embodiment, the case where all of the highways, national roads, prefectural roads, narrow streets, etc. are displayed in both the color display mode and the two-tone display mode has been shown, but in the color display mode, all of these types are displayed. While displaying roads, in the two-tone display mode, some types of roads (eg, highways, national roads, prefectural roads) are displayed, and other types of roads (eg, narrow streets) are hidden. You can also By doing so, the display is simple and the screen is easy for the user to see.

1... Navigation device 2... Main body 3... Display unit 4... Menu button 5... TV button 6... TV receiving antenna 7... MicroSD card insertion slot 8... B -CAS card insertion slot 9... DC jack 10... Power lamp 11... Headphone terminal 12... Reset button 13... External antenna terminal 14... Engagement portion 20... Cradle 21 ... Pedestal 22... Lever 23... Mounting part 24... Removal button 25... Arm 26... Lock 31... Control part 32... Display device 33... Memory Part 33a... Program storage unit 33b... Map database 33c... Road network information storage unit 34... GPS reception unit 35... TV tuner 36... Speaker 37... MicroSD card reader 38. ..Mini B-CAS card reader 39...Wireless receiver 40...Microwave receiver

Claims (4)

An electronic device that includes control means for displaying an image on a display unit and that can be installed in a vehicle so that a person in the vehicle can visually recognize the display unit,
The control means has a function of switching between color display for displaying the image in color and two-tone display which is a function for displaying the image in two-tone,
The image in the two-tone display and the color display includes a background and an icon arranged on the front side of the background,
In the case of the two-tone display, a function of hiding the icon arranged and displayed on the background in the color display is provided.
An electronic device characterized by. The icon belongs to one of the first and second categories,
The electronic device according to claim 1, wherein during the two-tone display, the icons belonging to the first category are hidden and the icons belonging to the second category are displayed. The images in the two-tone display and the color display include a map drawn based on map data including roads of the first and second types,
In the color display, the roads of the first and second types are displayed on the map,
The electronic device according to claim 1 or 2, wherein, in the two-tone display, the road of the first type is displayed on the map and the road of the second type is not displayed. Program for realizing the functions of the electronic apparatus according to the computer in any one of claims 1-3.