JP2014104816A - Information display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an information display device capable of being used as a safety lamp for side directions when it is mounted on a vehicle and being produced at low cost.SOLUTION: The information display device comprises: display means 3 for displaying various kinds of information; control means 24 for controlling an image displaying the various kinds of information on the display means 3; a case 2 incorporating a display part 3 and the control means 24 and having a window 2A for exposing a display screen of the display means 3; a window cover 7 attached to the window 2A of the case 2; and light introduction means 8 for introducing light from the display means 3 and emitting the light toward an outside of a side surface direction of the information display device and being provided on the window cover 7.

Description

  The present invention relates to an information display device mounted on a vehicle such as a bicycle.

  Bicycles, which are a type of vehicle, are legally required to have headlights and taillights at night and when traveling in tunnels. Is fitted with a rear reflector. As a result, while the bicycle is traveling at night, a driver of an automobile or the like that runs from the front or the rear of the bicycle looks at the light from the headlamps and the headlight reflected from the rear reflector. Since it is possible to recognize that the vehicle is running from a remote location, attention can be paid so as not to pose a danger to this running bicycle. Enhanced.

  However, in many cases, a bicycle is not provided with a member that reflects light from the side direction, and a mechanism that emits light in the side direction is generally not provided. For this reason, a driver of a car or the like approaching from a side of a bicycle running on a main road with a high traffic volume or a road with little or no lighting, such as at night, may have difficulty in recognizing the bicycle. .

  Therefore, as a countermeasure against such a problem, a light emitting body that emits light in the side direction of the bicycle is provided on the side surface of the vehicle body (see Patent Document 1).

Japanese Patent Laid-Open No. 10-109676

  However, the prior art requires a dedicated light emitter to emit light in the side direction of the bicycle, which increases the cost.

  Accordingly, an object of the present invention is to provide an information display device that can be used as a safety light in the side direction at a low cost.

In order to solve the above-described problems and achieve the object, the present invention according to claim 1
Display means for displaying various information;
Control means for controlling an image for displaying the various information on the display means;
A case having a built-in display unit and the control unit, and a window unit for exposing a display screen of the display unit;
A window cover attached to the window portion of the case;
A light guide means that is provided on the window cover, guides light from the display means, and radiates the light to the outside in a side surface direction of the information display device;
It is provided with.

1 is a perspective view of an information display device according to a first embodiment of the present invention. (First embodiment) It is typical sectional drawing of the information display apparatus concerning the 1st Embodiment of this invention. (First embodiment) It is a block diagram which shows the electrical structural example of the information display apparatus concerning the 1st Embodiment of this invention. (First embodiment) It is a perspective view which shows the case where the information display apparatus of this invention is attached to the bicycle. (First embodiment) It is a top view which shows the example of a change in the information display apparatus concerning the 1st Embodiment of this invention. (First embodiment) (A) And (b) is typical sectional drawing which shows the modification in the information display apparatus concerning the 1st Embodiment of this invention, respectively. (First embodiment) It is typical sectional drawing of the information display apparatus concerning the 2nd Embodiment of this invention. (Second Embodiment) It is an enlarged view of the light guide member in the information display apparatus concerning the 2nd Embodiment of this invention. (Second Embodiment)

  First, an embodiment of an information display device according to the present invention will be described.

  An information display device according to an embodiment of the present invention includes a display unit that displays various types of information, a control unit that controls an image that displays the various types of information on the display unit, and guides light from the display unit. And light guide means for radiating to the outside in the side surface direction of the information display device. Thereby, the information display device can also be used as a safety light in the side direction at a low cost.

  The display unit may include a display panel that displays various types of information, and a light source that irradiates light to the display panel in order to make the various types of information visible. In this case, the light guide means guides the light from the light source and radiates it to the outside in the side surface direction of the information display device. Thereby, light can be radiated | emitted by fixed intensity | strength to a side surface direction.

  The information display device may further include map information acquisition means for acquiring map information including the current location of the information display device. In this case, the display means displays various information including the map information. This is convenient because the current location of the information display device can be recognized.

  The information display device may further include dangerous area information acquisition means for acquiring information related to areas with high traffic risk. In this case, the control means determines whether or not the current location acquired by the map information acquisition means is included in the range of the high traffic risk area acquired by the dangerous area information acquisition means. And when it is judged that it is contained, the color (for example, red etc.) which improves visibility more is displayed on a display means. Further, the light guide means guides a color that enhances the visibility and radiates it to the outside in the side surface direction of the information display device. Thereby, the effect as a safety light in the side direction can be further increased.

  The light guide means includes a reflection unit that reflects light from the display unit toward a side surface of the information display device. Thereby, the light from a display part can be radiated | emitted outside the side surface direction of an information display apparatus.

(First embodiment)
Hereinafter, a first embodiment of the present invention will be described. FIG. 1 is a perspective view of an information display apparatus according to the first embodiment of the present invention, and FIG. 2 is a schematic cross-sectional view of the information display apparatus according to the first embodiment of the present invention.

  As shown in FIG. 2, the information display device 1 includes a box-shaped case 2, a display panel made up of a liquid crystal display, a display unit 3 as display means, and an electronic circuit such as a drive circuit that drives the display unit 3. A printed wiring board 4 on which the component 5 is mounted and the like are incorporated. The display unit 3 and the printed wiring board are fixed at appropriate positions in the case. The display unit 3 can be visually recognized from the outside through a transparent resin display screen cover 6 and a window 2A opened in the case 2 so as to expose the display screen of the display unit. Is arranged.

  The case 2 is provided with a transparent resin window cover 7 that covers the window portion 2 </ b> A provided in the case 2. As shown in FIG. 2, the window cover 7 has a flat plate portion that covers the entire upper surface on which the window portion 2A of the information display device 1 is located, and from the flat plate portion to the entire circumference near the inner peripheral edge of the window portion 2A (in other words, A rib-shaped light guide part 8 as a light guide means is erected by integral formation so as to border the position of the display part 3 along the outer peripheral edge of the display screen 3A. The window cover 7 is configured so that an operation button or the like of a data input unit 21 (see FIG. 3), which will be described later, can be operated. However, this portion is not illustrated and will not be described because it is irrelevant to the present invention. . The light guide unit 8 includes a vertical wall 8a that rises perpendicular to the surface of the window cover 7, an inclined wall 8b as a reflection unit, and a top 8c. The slope wall 8b is tapered so as to gradually become thicker from the top 8c toward the flat plate portion, and guides display light emitted from the display surface 3A of the display unit 3 to the outside in the side surface direction of the information display device 1. It has an inclination to reflect and radiate.

  FIG. 3 is a block diagram showing a configuration when the information display device 1 of the present embodiment is an in-vehicle navigation device. The information display device 1 includes a display unit 3 including a liquid crystal display for displaying a map, guidance information, and the like. In addition, the information display device 1 includes a data input unit 21, a current position measurement unit 22 as a current location acquisition unit, a map information storage unit 23 as a dangerous area information acquisition unit, and a guidance information generation unit 24 as a control unit. , A guidance voice signal output unit 25, a speaker 26, and a map drawing unit 27. The data input unit 21 includes keys and the like, and is used for inputting various information and data such as destinations. The current position measurement unit 22 measures the current position using a GPS (Global Positioning System), signals from beacons, or sensor output signals from various sensors. The map information storage unit 23 stores map information such as destination data, intersection data, road data, and dangerous area information. The guide information generating unit 24 generates guide information from the current location to the destination based on each data from the data input generating unit 21, the current position measuring unit 22, and the map information storage unit 23. The guidance voice signal output unit 25 outputs to the speaker 26 a guidance voice output signal for performing guidance according to the guidance information generated by the guidance information generation unit 24 by voice.

  The map drawing unit 27 generates drawing information for drawing a map or the like to be displayed on the display 30 based on the data from the current position measuring unit 22, the map information storage unit 23, and the guidance information generating unit 24. The guide information generating unit 24 and the map drawing unit 27 are, for example, a CPU (Central Processing Unit), a ROM storing various programs and data, a microcomputer having a RAM used as a working area, and the like. Realized.

  As shown in FIG. 4, the information display device 1 is attached to the handle of the bicycle 9 so that the display screen 3A is horizontal. When the information display device 1 is turned on and the map information is displayed on the display screen 3A, the display light from the display screen 3A is guided to the light guide 8 and reflected by the inclined wall 8b, and the side direction of the information display device 1 is displayed. Radiated to the outside. Thereby, light from the headlamp 10 is emitted in front of the bicycle 9, and light from the information display device 1 is emitted to the left and right of the bicycle 9. Thereby, a driver of an automobile or the like approaching the bicycle running at night from the side direction can easily recognize the bicycle from a long distance by the light emitted from the information display device 1. Therefore, such an information display device 1 can be configured only by providing the light guide 8 on the window cover 7, so that the current location of the bicycle can be known, and as an inexpensive safety light in the side direction while traveling at night. Can be used.

  Next, in the map information stored in the map information storage unit 23 and displayed by the display unit 3 of the information display device 1, there is a danger such as a road with a lot of traffic, a dark road without a street light, a tunnel, etc. The following application is possible when dangerous area information that designates a high-risk area as a dangerous area is included. That is, when the current location where the bicycle 9 is traveling corresponds to the location specified by the dangerous area information, the guide information generating unit 24 displays the map displayed on the display screen as shown in FIG. For example, a line display 12 such as a red color is added to the entire circumference of the outer periphery of the display, or the display is blinked. Further, the red display light is guided to the light guide portion 8 and then emitted in the side direction, so that the effect as a safety light can be further enhanced.

  FIG. 6 is a diagram illustrating a modification of the present embodiment. For example, as shown in FIG. 6A, the window cover 7 may have a shape that covers only the window portion 2 </ b> A opened in the case 2. Further, for example, as shown in FIG. 6B, the light guide unit 8 applies a grain processing unit 8d as a reflection unit near the end of the window cover 8, and performs display processing from the display unit 3A. You may make it radiate | emit in a side direction by making it scatter in the part 8d.

(Second Embodiment)
Next, a second embodiment of the present invention will be described. FIG. 7 is a schematic cross-sectional view of an information display apparatus according to the second embodiment of the present invention. In 2nd Embodiment, it replaced with the display part 3 in 1st Embodiment, and provided with the display part case 11 which contains the liquid crystal display panel 12, the backlight 13, and the light guide member 14. FIG. Other configurations in the second embodiment are the same as those in the first embodiment.

  The liquid crystal display panel 12 is of a backlight type and has a display screen 3A. The backlight 13 is composed of a diffuser plate provided with a plurality of light sources such as fluorescent tubes (not shown) on the side thereof, and emits surface light toward the liquid crystal display panel 12 and is directed toward the light guide member 14 from both ends. It emits light.

  The light guide member 14 is made of a transparent resin. As shown in FIG. 8, the light guide member 14 includes a reflection wall 14a having an angle of 45 degrees that receives light emitted from the backlight 13 and reflects the light 90 degrees to the right, and a reflection wall 14a. A reflection wall 14b having an angle of 45 degrees that receives the reflected light and reflects it by 90 degrees to the right, and a light that is reflected by the reflection wall 14b and reflects by 90 degrees to the left to guide the light guide 8 of the window cover 7. And an L-shaped member having a reflection wall 14c having an angle of 45 degrees.

  In such a configuration, when the backlight 13 emits light when the information display device 1 is powered on, the light from the backlight 13 enters the light guide member 14. The incident light is guided while being reflected by the reflection walls 14 a, 14 b and 14 c of the light guide member 14, and is emitted toward the light guide portion 8 of the window cover 7. And the light from the light guide part 8 is radiated | emitted to the exterior of the side surface direction of the information display apparatus 1. FIG. Therefore, such an information display device 1 can be configured by adding a light guide member to the conventional backlight type liquid crystal display and providing the light guide 8 on the window cover 7, so that the current location of the bicycle can be known. At the same time, it can also be used as an inexpensive safety light in the side direction during night driving.

  In addition, embodiment mentioned above only showed the typical form of this invention, and this invention is not limited to these embodiment. That is, various modifications can be made without departing from the scope of the present invention. Of course, such modifications are included in the scope of the present invention as long as they have the configuration of the present invention.

  For example, in the above embodiment, the light guide is integrally formed with the window cover, but may be a separate member.

  In the second embodiment, the backlight in the backlight type liquid crystal display is used as the light source of the safety light. However, the present invention is not limited thereto, and a front light in a front light type liquid crystal display may be used. In this case, the light guide member may or may not be provided.

  In the above-described embodiment, the case where the present invention is implemented by a portable navigation device has been described. However, the present invention is not limited to this. For example, “bicycle data display device” disclosed in Japanese Patent Laid-Open No. 7-236708 is disclosed. And other devices that display information. Moreover, although the information display device of the present invention has been described as an information display device for bicycles in the above-described embodiment, the information display device can be used for devices used as safety lights for motorcycles, wheelchairs, and pedestrians.

  In addition, the present invention is applicable to both the case of only a terminal mounted on a vehicle such as a two-wheeled vehicle and the case of communicating with a server.

1 Portable navigation device (information display device)
2 Case 3 Display unit (display means, light source)
7 Window cover 8 Light guide (light guide)
8b Slope (reflection part)
8d textured surface (reflective part)
22 Current position measurement unit (current location acquisition means)
23 Map information storage (dangerous area information acquisition means)
24 Guide information generator (control means)
12 Liquid crystal display (display means, display panel)
13 Backlight (light source)
14 Light guide member

Claims (5)

Display means for displaying various information;
Control means for controlling an image for displaying the various information on the display means;
A case having a built-in display unit and the control unit, and a window unit for exposing a display screen of the display unit;
A window cover attached to the window portion of the case;
A light guide means that is provided on the window cover, guides light from the display means, and radiates the light to the outside in a side surface direction of the information display device;
An information display device comprising: The display means includes a display panel for displaying various types of information, and a light source for irradiating the display panel with light so as to make the various types of information visible.
The information display device according to claim 1, wherein the light guide unit guides light from the light source and emits the light to the outside in a side surface direction of the information display device. Map information acquisition means for acquiring map information including the current location of the information display device;
The information display device according to claim 1, wherein the display unit displays various types of information including the map information. It further comprises dangerous area information acquisition means for acquiring information on areas with high traffic risk,
The control means determines whether or not the current location acquired by the map information acquisition means is included in the range of the high traffic risk area acquired by the dangerous area information acquisition means. If it is determined, the display means displays a color with high visibility,
The information display device according to claim 3, wherein the light guide means guides light having a high visibility color toward a side surface of the information display device and radiates the light to the outside.   The information display device according to claim 1, wherein the light guide unit includes a reflection unit that reflects light from the display unit toward a side surface of the information display device.

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