JP2609603B2 - Travel route guidance display - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a singular point of a road existing in a traveling route, for example, from a junction with a main intersection such as a plane intersection, a three-dimensional intersection, a highway, or a main road such as a highway. And an overpass such as a bridge, an underpass such as a tunnel (hereinafter referred to as a road node), and a driving route guidance display device capable of displaying a guidance direction there.

[Conventional technology]

2. Description of the Related Art In recent years, a display device capable of confirming a current position of a traveling vehicle has been developed in order to facilitate vehicle driving in a non-guide area. Therefore, a travel route guidance display device has been proposed which focuses on road nodes existing on a route on which a vehicle should travel, and displays the shape of each road node and the direction in which the vehicle should pass immediately before. Examples of this type of display using a liquid crystal display device are described in the Technical Report of the Society of Television Engineers, ED-409, IPD37-12, "In-vehicle liquid crystal display device".
(Announced November 17, 1978) and Zafifs International Conference on Out-Motive
Electronics, C201 / 85 (October 29, 1985) "A Self-Supporting, Modular Navigational System for Out-Mobiles" (The Fi
fth International Conference on Automontive Electr
onics C201 / 85 (October 29, 1985) "A self supportin
g, modular navigational system for automobiles ")
And so on. In each case, a monochromatic planar radial arrow pattern is used to display the shape of the plane intersection and the guidance direction there.

[Problems to be solved by the invention]

Since the conventional device is configured as described above, it is difficult to display a road node other than a plane intersection, for example, a shape display of a three-dimensional intersection and a guidance display at the three-dimensional intersection in an arrow pattern or the like. I got a point.

The present invention has been made in order to solve the above-mentioned problems, and it is possible to display the shape of a three-dimensional intersection and guidance display there, and realize the shape of a plane intersection and guidance display there with higher visibility than before. It is another object of the present invention to provide a travel route guidance display device capable of displaying a straight traveling display and a passing error display.

[Means for solving the problem]

The traveling route guidance display device according to the present invention divides the display segment into a plurality of display segments, displays at least two types of colors, and arbitrarily selects and combines these display segments with a perspective three-dimensional road pattern. In addition, different display is performed on the combined display segments to display an arbitrary road node shape, and guidance display at the road node is performed.

Further, in the traveling route guidance display device according to the present invention, the color display of the road pattern is made different between the plane intersection pattern and the three-dimensional intersection pattern.

[Operation] The travel route guidance display device of the present invention arbitrarily selects and combines display segments, displays different colors on the combined display segments to display an arbitrary road node shape, An arbitrary road node shape display and its guidance display are performed three-dimensionally.

Further, the traveling route guidance display device according to the present invention makes the color display of the road pattern different between the plane intersection pattern and the three-dimensional intersection pattern.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a sectional view showing a part of a traveling route guidance display device according to an embodiment of the present invention. In the figure, 1a and 1b are interdigital common electrodes arranged alternately,
2 is a segment electrode. Reference numerals 3a and 3b are color filters of, for example, two colors of red and blue provided on the common electrodes 1a and 1b, respectively, in accordance with the interdigital shape of the common electrodes 1a and 1b. Reference numeral 4 denotes a liquid crystal layer, and reference numeral 5 denotes an insulating film separating the color filter 3 and the liquid crystal layer 4. Reference numerals 6a and 6b denote opposing transparent substrates, on which a segment electrode 2 and a lead-out electrode (not shown) of the common electrode 1 are formed, and on the transparent substrate 6b, common electrodes 1a and 1b are formed. ing.

Liquid crystal panel 10 which is the liquid crystal part of the driving route guidance display device
When 0 is used for display, for example, a twisted nematic liquid crystal layer having a positive dielectric anisotropy is used for the liquid crystal layer 4, and the liquid crystal panel is turned off by two polarizing plates (not shown).
The liquid crystal panel 100 is sandwiched between them and illuminated from behind the liquid crystal panel 100 with, for example, a fluorescent lamp. Then, a predetermined voltage is applied to the liquid crystal layer 4 between the segment electrode 2 and the common electrode 1 through the end of a lead-out electrode (not shown) to constitute a traveling route guidance display device. When a predetermined voltage is applied to the liquid crystal layer 4, the shape of the segment electrode 2 (hereinafter, referred to as a segment pattern) becomes a lighting state, that is, light transmission. Therefore, if the interdigital pitch of the common electrode 1 is sufficiently smaller than the segment pattern, looking at the liquid crystal panel 100 from the side opposite to the fluorescent lamp, if the common electrode 1a is selected, the segment pattern becomes red and the common electrode 1b becomes If you choose,
If the segment pattern is blue, and if both the common electrodes 1a and 1b are selected, the segment pattern is colored red and blue and visually recognized.

FIG. 2 is a diagram schematically showing a simplified electrode pattern of the traveling route guidance display device according to one embodiment of the present invention. In FIG. 2, COM1 is connected to the common electrode 1a in FIG.
COM2 corresponds to the common electrode 1b in FIG.

FIG. 3 shows display segments of the traveling route guidance display device according to one embodiment of the present invention. In the figure, N1
N24 to N24 indicate display segments. By combining and displaying appropriate segments among the display segments N1 to N24, the shape of the road node and the guidance of the vehicle can be displayed. Numeral 7 denotes a straight road pattern, in which a two-stage display segment N23 and a three-dimensionally enhanced display segment N24 are provided on one end face of the vehicle approaching side to give a three-dimensional effect. 8
Is an orthogonal road pattern orthogonal to the straight road pattern 7, 9
Is a first sloping road pattern of approximately 45 ° to the right, which is approximately 45 ° from the orthogonal road pattern 8, and 10 is a second sloping road pattern of approximately 45 ° to the right, which is also approximately in the opposite direction. The diamond-shaped or rectangular display segments N1 to N9 correspond to the respective road patterns 7 to
It is provided as a pair at both ends of 10 and is for indicating the guidance route of the vehicle. However, the rectangular display segment N5 is for displaying that the vehicle is relatively far from the intersection. In the display segments N10 to N16, portions where the road patterns 7 to 10 do not intersect each other are used as display segments. The display segments N10 to N16 are provided in pairs on both sides of the road patterns 7 to 10. The display segment N17 or N18 is a portion where the second sloping road pattern 10 or the first sloping road pattern 9 intersects the straight road pattern 7, and the display segment N19 is an intersection of three road patterns 7, 9, 10 Part. The display segment N20 or N22 is a portion where the orthogonal road pattern 8 intersects the first sloping road pattern 9 or the second sloping road pattern 10, and the display segment N21 is all the road patterns 7 to 10.
Are the intersections that overlap and overlap. Each display segment
N1 to N24 have the configuration shown in FIG. 1 and can perform three-color display, and are each independently driven by a drive control circuit (not shown). As described above, in the present invention, a plurality of perspective three-dimensional road patterns corresponding to a plurality of perspective stereoscopic roads are crossed, the non-intersecting portions and the intersection overlapping portions are used as display segments, and a display segment for guidance is also provided. I did it.

FIG. 4 to FIG. 8 show examples of each operation display of the traveling route guidance display device having such a configuration. In FIG. 4, FIG. 4 (a) shows an overpass, and FIG. 4 (b)
Is an example where the course is an underpass. The course is displayed, for example, in blue (hereinafter, indicated by oblique dashed lines in the figure), and the three-dimensional intersection is displayed, for example, in a mixed color (hereinafter, indicated by dots in the figure). In addition,
The guidance display may be performed by, for example, blinking the diamond-shaped display segment N1 in the segment pattern indicating the course. When the course is overpass, display segment N24 is the same as N
Lights up with 23 to enhance 3D display. To display as shown in FIG. 4 (a), ten display segments N
1, N5, N9, N13, N17, N18, N19, N21, N23, N24 are displayed in blue,
Six display segments N3, N7, N11, N15, N20, and N22 are displayed in a mixed color. Also, to display as shown in FIG. 4 (b),
The eight display segments N1, N5, N9, N13, N17, N18, N19, N23 are displayed in blue, and the seven display segments N3, N7, N11, N15, N20,
N21 and N22 are displayed in a mixed color.

FIG. 5 (a) shows a crossroad, and FIG. 5 (b) shows a Y-shaped road. In addition,
11 display segments N2, N5, N8, N10, N in case of Y-shaped road
13, N16, N17, N18, N19, N21, and N23 may be displayed in blue.

FIG. 6 (a) is a display example when the vehicle is relatively far from the front crossroad, and only the rectangular display segment N5 is displayed in blue, for example. FIG. 6 (b) is an example of a crossroad shape display when the vehicle approaches the crossroad and a guidance display indicating that the vehicle should make a right turn. Eight display segments N1, N7, N9, N15, N17, N
18, N19, N20 are displayed in, for example, red (hereinafter, hatched in the figure), and seven display segments N3, N5,
N11, N13, N21, N22, and N23 are displayed in, for example, blue. If the diamond-shaped display segment N3 is blinked to further emphasize the course, the visibility is further improved.

FIG. 7 shows a straight path, and nine display segments N1, N5,
N9, N13, N17, N18, N19, N21, and N23 are displayed in, for example, blue.
If the diamond-shaped display segment N1 is blinked to further emphasize the course, the visibility is further improved.

FIG. 8 is a display example for notifying the driver of a route deviation when the vehicle does not proceed as shown on the sloping route guidance display device, in which all display segments N1 to N24 are displayed in red, for example.

〔The invention's effect〕

As described above, according to the present invention, by selecting and combining the display segment or the color of the display segment at the intersection of the straight road pattern and the orthogonal road pattern, the road node shape of the entering plane intersection or overpass is obtained. Is displayed, the display of the shape of the road node and the guidance display there can be realized with higher visibility than before, and the display of the intersection can be displayed, for example, whether the car passes over the overpass, the overpass, This has the effect of instructing the driver on information such as whether to proceed through the road.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a part of an embodiment of the present invention, and FIG.
FIG. 3 is a diagram schematically and schematically showing an electrode pattern according to an embodiment of the present invention, FIG. 3 is a diagram showing display segments according to an embodiment of the present invention, and FIGS. It is a figure showing each example of a display of a route guidance display. DESCRIPTION OF SYMBOLS 1 ... Common electrode, 2 ... Segment electrode, 3 ... Color filter, 4 ... Liquid crystal layer, 6 ... Transparent substrate, 7-10 ...
... Road pattern, 100 ... LCD panel, N1-N24 ... Display segment.

Claims (2)

(57) [Claims] 1. A straight road pattern, an orthogonal road pattern orthogonal to the straight road pattern and superimposed on the straight road pattern, and intersecting the orthogonal road pattern obliquely upward to the right at a predetermined angle. A first sloping road pattern that is arranged, and a second sloping road pattern that is arranged so as to intersect the orthogonal road pattern diagonally to the right at a predetermined angle. The intersection of the straight road pattern and the orthogonal road pattern, and selecting and combining the display segments at the intersections of the straight road pattern and the orthogonal road pattern to display a road node shape of a plane intersection or a three-dimensional intersection to enter. Route guidance display device. 2. The method according to claim 1, wherein a color of said display segment at an intersection of said straight road pattern and said orthogonal road pattern is selected to distinguish a road node shape of a plane intersection or a three-dimensional intersection to enter. The driving route guidance display device according to the above.