JPS63211100A - Running course guidance display device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention is applicable to road singularities that exist in a driving route, such as at-grade intersections, grade-level intersections, junctions with main lines such as expressways, or from main lines such as expressways. The turning point.

The present invention relates to a travel route guidance display device that can display the shape of overbuses such as bridges, underpasses such as tunnels (hereinafter referred to as road nodes), and the guidance direction there.

[Conventional technology]

In recent years, display devices have been developed that can confirm the current location of a vehicle that is traveling in a controlled manner to facilitate vehicle driving in unfamiliar areas. Therefore, a driving route guidance display device has been proposed that focuses on road nodes existing on the route on which the vehicle should travel and displays the shape of each road node and the direction in which the vehicle should pass from immediately before the road node. Examples of this type of display using a liquid crystal display device include Television Society Technical Report ED-409, IPD 37-12 r Automotive Liquid Crystal Display Device J (published on November 17, 1978), and The Fifth Inter Nashi Seal Conference
On Automotive Electronics, Sea 20
1/$5 (October 29, 1985) "A Self-Supporting, Mode & Two Navigation System for Automobiles J"
thInternational (::onfere
nce on Automotive Elect-r
onics C201/ss (October 29, 1985
(Japanese) rAselfsupporting, module
ar navigational system f
orautomobilesJ), etc. In both cases, monochrome plane radial arrows and turns are used to display the shape of the plane intersection and the guidance direction there.

[Problem that the invention seeks to solve]

Since the conventional device is configured as described above, it is difficult to display road nodes other than at-grade intersections, such as the shape of multi-level intersections and guidance at the multi-level intersections, etc. using arrows and turns. There were interstitial spots.

This invention was made to solve the above-mentioned problems, and it is possible to display the shape of grade-level intersections and the guidance there, as well as to make the shape of grade-level intersections and the guidance there more highly visible than before. To provide a driving route guidance display device that can display a normal straight ahead display and a passing error display.

[Means for solving problems]

The driving route guidance display device according to the present invention intersects a plurality of road turns in a three-dimensional perspective and divides the road into two parts.
- Display segments capable of displaying 8 or more buildings are provided.

[For production]

In the driving route guidance display device of the present invention, display segment electrodes are arbitrarily selected and combined, different i displays are displayed on the combined display segments, and the node shape of an arbitrary road and its guidance are displayed in all three dimensions. .

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings. 1st
The figure is a sectional view showing a portion of a driving route guidance display device according to an embodiment of the present invention. In the figure, la and lb are interdigital common electrodes arranged alternately, and 2 is a segment electrode. 3a and 3b are color filters of two colors, for example red and blue, which are formed to match the interdigital shape of the common electrodes 1a and lb, and are provided on the common electrodes 1a and lb, respectively. 4 is a liquid crystal layer, and 5 is an isolation 1ic that separates the color filter 3 and the liquid crystal layer 4.
It is k@. 6a and 6b are transparent substrates facing each other, lead-out electrodes (not shown) of segment electrodes 2 and common electrodes 1 are formed on the transparent substrate 6a, and common electrodes 1a and 1b are formed on the transparent substrate 6b. ing.

Liquid crystal, which is the liquid crystal part of the driving route guidance display device, e-nel 1
When using 00 for display, for example, a twisted nematic liquid crystal layer with positive dielectric anisotropy is used as the liquid crystal layer 4, and the liquid crystal channel is set so that it is in an extinction state with two polarizing plates (not shown). 10Ot- and illuminate it from behind the liquid crystal panel 100 with, for example, a fluorescent lamp. Then, the segment electrode 2. A travel route guidance display device is constructed by applying a predetermined voltage to the liquid crystal layer 4 between the common electrodes 1. When a predetermined voltage is applied to the liquid crystal layer 4, the shape of the segment electrode 2 (hereinafter referred to as
(referred to as segment nozoturn) is in a lit state, that is, becomes light-transmissive. Therefore, if the interdigital pitch of the common electrode 1 is sufficiently small compared to the segment pattern, if you look at the liquid crystal channel 1oot from the side opposite to the fluorescent lamp, if you select the common electrode 1a, the segment pattern will turn red, and the common electrode 1kl -If you choose, what is the segment pattern? If the color K and both common electrodes 1a and lb'i are selected, they will be visually recognized in a mixed color of red and real.

FIG. 2 is a diagram schematically showing a simplified electrode pattern of a driving route guidance display device according to an embodiment of the present invention. In FIG.
In addition, C0M2 corresponds to the common rK pole 1b in FIG.

FIG. 3 shows display segments of a driving route guidance display device according to an embodiment of the present invention. In the same figure, at A, N1
-N24 indicates each display segment, and by combining appropriate segments among these display segments N1-N24,
By displaying in color, the shape of the road node and vehicle guidance can be displayed. 7 is a straight road pattern, and in order to give a three-dimensional effect, two display segments (N23) and a three-dimensional enhanced display segment (N24t) are provided on one end surface on the vehicle entrance side. 8 is an orthogonal road pattern orthogonal to the straight road pattern 7, 9 is a first diagonal road pattern diagonally to the upper right that forms a 45° angle with the orthogonal road pattern 8, and 10 is a diagonally lower right pattern that also forms a 45° angle to the orthogonal road pattern 8. This is the second diagonal road turn. Diamond-shaped or rectangular display segments N1-N9 are provided in pairs at both ends of each of the road patterns 7-1O, and are used to indicate the guidance course of the vehicle. However, the rectangular display segment N5 is for displaying that the vehicle is relatively far from the intersection. Display segment NIO
.about.N16 are display segments in which the road turns 7 to 10 do not intersect with each other, and are provided in pairs on both sides of each road turn 7 to 10. Display segment) Nl 7 or N18 is the second segment on straight road pattern 7.
diagonal road pattern 10 or first diagonal road pattern 9
Nl 9 is the intersection of three roads, Turn 7°9, and Road 0. The display segment N20 or N22 is the intersection of the orthogonal road pattern 8 and the first diagonal road pattern 9 or the second diagonal road pattern IO, and the display segment N2) is the intersection of the orthogonal road pattern 8 and the first diagonal road pattern 9 or the second diagonal road pattern IO, and the display segment N2) is the intersection of all the road turns 7 to 10. This is an intersection where the two intersect and overlap. Each display segment (Nl-N24) has the configuration shown in FIG. 1, is capable of displaying three colors, and is independently driven by a drive control circuit (not shown). As described above, in this invention, a plurality of roads in a perspective three-dimensional shape corresponding to a plurality of roads in a perspective three-dimensional view and an e-turn intersect, and the non-intersecting parts and the crossing overlapping parts are made into display segments, and the display segments for guidance. I also set it up.

FIGS. 4 to 8 show examples of various operation displays of the driving route guidance display device having such a configuration. In Figure 4,
FIG. 4(a) shows an example where the course is an overpass, and FIG. 4(b) shows an example where the course is an underpass. Routes are displayed, for example, in blue (hereinafter shown by diagonal broken lines in the figures), and overpasses are displayed in, for example, mixed colors (hereinafter shown by dots in the figures). The guidance display may be performed by displaying, for example, a flashing diamond-shaped display segment Nlk within each segment indicating the route. In addition, if the course is an overpass, display segment N24t-
It is turned on together with N23 to enhance the three-dimensional effect of the display.

To display as shown in FIG. 4(a), ten display segments Nl, N5 . N9. N13. N17. N18°N
19. N2), N23. N24 is displayed in blue, and 6@ display segment N3. N7. N11. N15. N20.
Display N22 in mixed colors. In addition, in order to display as shown in FIG. 4(b), 8 display segments) Nl, N5
, N9.

N13. N17', N18. N19. N23 is displayed in background color, and seven display segments N3. N7. Nll, N15
．． N20°N2). N22 is displayed in mixed colors.

Figure 5 ((turn) indicates a crossroads, Figure 5(b) indicates a Y-junction, and both roads are displayed in blue, for example.
In the case of a crossroads, 11 (display segment of Im) N2. N5
゜N8. NIO, N13. N16. N17. N18. N
19. N2)°N23 should be displayed in blue.

FIG. 6(a) is an example of a display when the vehicle is relatively far from the crossroads in front, in which only the rectangular display segment N5 is displayed, for example, in blue. Figure 6) is an example of a crossroad shape display when a vehicle approaches a crossroads and a guidance display indicating that the vehicle should turn to the right, with eight display segments Nl, N7, . N9. N
15. N17. N18. N19°N20t - Displayed in red (hereinafter indicated by diagonal lines in the figure), for example, and seven display segments N3. N5. N11. N13.
N2). N22. N25t - Displayed in blue, for example. Furthermore, in order to emphasize the course, the visibility can be further improved by flashing the diamond-shaped display segment N3.

Figure 7 shows a straight path, 9 (display segment Nl of m
, N5. N9. N13. N17. N18. N19. N2
)°N25t - Displayed in blue, for example. Furthermore, in order to emphasize the course, the visibility can be further improved by flashing the diamond-shaped display segment hNl.

FIG. 8 shows an example of a display for notifying the driver of a route deviation when the vehicle does not proceed as indicated on the travel route guidance display device, in which all display segments N1-N24f are displayed in red, for example.

〔Effect of the invention〕

As described above, according to the present invention, a plurality of perspective three-dimensional road patterns are intersected and divided into multiple areas to form display segments, and the display segments are displayed in different ways. The shape display and the guidance thereon can be realized with higher visibility than before, and by providing a three-dimensional reinforcement segment that enhances the three-dimensional effect, it is now possible to display the shape of the intersection and the guidance there, which was previously possible. It has the effect of

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing a part of an embodiment of the present invention, and FIG.
The figure is a simplified and schematic diagram of an electric kettle turn 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. 4 to 8 are diagrams of the present invention. 1... Common electrode, 2... Segment electrode, 3...
・Color filter, 4...Liquid crystal layer, 6...Transparent substrate, 7-10...Road pattern, ioo...Liquid crystal no.1
Nl-N24...Display segment.

Claims (2)

[Claims] (1) In a display device that displays two or more different displays in the same area, a plurality of perspective three-dimensional road patterns are intersected and divided into a large number of display segments to form display segments, and the display segments are arbitrarily selected. What is claimed is: 1. A driving route guidance display device characterized in that the combined display segments display different shapes to display the shape of a node of an arbitrary road and provide guidance at the road node. (2) The driving route guidance display device according to claim 1, wherein the road pattern includes a plane intersection pattern and a three-dimensional intersection pattern.