JP2001014591A - Information display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To allow a person with color blindness to easily recognize information and also to prevent a healthy person from recognizing information erroneously by making a displaying part include two or more kinds of light emitting diodes having different luminescent colors and making a controlling part control the light emitting diodes to show visual information with preliminarily defined forms and to display the form in a redomunant color and an accessory color. SOLUTION: Light emitting units including LEDs is arranged on a displaying part 11 in a matrix shape. Each light emitting unit is arranged on a substrate so that green and blue can be arranged on the both sides of red. The lighting state of each light emitting unit is controlled by a controlling part. A shape corresponding to either information as to whether or not advance can be made is shown on the part 11 with preliminarily defined colors and luminance. For instance, a signal displays the information that advance is allowable by a shape 13. The shape 13 is a donut shape, its contour pat 14 is displayed in bright blue (perdominant color), and central part 16 is displayed in red (accessory color).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information display device using a light emitting diode. More specifically, the present invention relates to an information display device such as a traffic signal that takes into account the color blindness or color blindness, which is considered to be a color blindness.

[0002]

2. Description of the Related Art Generally, a traffic signal displays specific information associated with each color by lighting specific colors such as red, blue, and yellow. That is, specific information is given to the viewer by the recognition and identification of the lit color. In addition, a traffic light for pedestrians, a traffic light for construction, and the like are displayed in a specific form (for example, a shape or number of a pedestrian) in a specific color. In some cases, information is displayed using a combination. Japanese Unexamined Patent Publications Nos. 11-110691, 10-3596 and 11-39593 disclose a signal that can be easily recognized even by a color-blind person (color-blind person) called color blindness or color weakness as so-called barrier-free. I have. In these traffic lights, a specific shape is displayed in the traffic light, so that the lighting state of the signal can be more reliably recognized by the color vision singular person.

[0003]

Certainly, according to the traffic light in which the color and the shape are combined, it becomes easy for the color vision individual to recognize the lighting state. However, when the shape is displayed, for example, when the shape is simply displayed in a single color, the color vision specific person may not be able to recognize the shape depending on the selected color. In addition, there is a possibility that the recognition of a healthy person may be confused. The present invention has been made in order to solve the above-described problems, and provides a novel information display device that enables a color vision-specific person to easily recognize information, and that does not cause a false recognition of information of a healthy person. With the goal.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to achieve the above-mentioned object, and has the following structure. A display unit in which two or more types of light-emitting diodes having different emission colors are incorporated, and a control unit that controls the light-emitting diodes to display visual information in a predetermined form on the display unit, The information display device, wherein the form is represented by a main color and an auxiliary color.

According to the configuration of the present invention, the predetermined form corresponding to the specific information is displayed in combination with the main color and the auxiliary color different from the main color. Any of the auxiliary colors that can be recognized by the color vision specific person can be adopted, so that the color vision specific person can easily recognize the displayed form by the main color or the auxiliary color. In addition, by adopting a color that is originally used for displaying the information as the main color, there is no possibility that information of a healthy person is erroneously recognized.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, each element of the information display device of the present invention will be described. A plurality of light emitting diodes (hereinafter, referred to as “LEDs”) as light sources are incorporated in the display unit. Preferably, the display section is formed by arranging the LEDs in a matrix. Although it is preferable to arrange LEDs on the entire display unit, it is also possible to arrange LEDs only in a specific region of the display unit. At least two types of LEDs are used. Thus, the display unit can display the form using at least two different colors. Each LED is arranged so that a predetermined form can be displayed using a predetermined color.

A light-emitting unit configured by incorporating two or more LEDs may be arranged on the display unit in a matrix. For example, if a light emitting unit is configured by incorporating one of each of the three primary colors of light, red, green, and blue, the light emitting unit can emit light of any color. By arranging such light emitting units in a matrix in a display portion, it is possible to provide a display portion capable of displaying various forms in any color.

Although the shape of the display section is not particularly limited, it is, for example, substantially rectangular or circular. A plurality of display units may be provided. Also in that case, the shape of each display unit is not particularly limited.

[0009] A predetermined form (hereinafter, referred to as a "display form") corresponding to specific information is displayed on the display section. The control unit incorporates a pattern selection circuit, a luminance modulation circuit, a blinking circuit, a pattern moving circuit, and the like, and controls a lighting state of each LED arranged on the display unit to set a predetermined form according to a predetermined rule. Display according to.

The display form may be a character, or any combination of shapes and characters, in addition to a shape such as ○ or ×. The display form is displayed by a combination of the main color and the auxiliary color. The primary color is a color used for more parts of the display form. On the other hand, the auxiliary color is a color used for a part other than the part displayed by the main color of the display form, and is different from the main color. Further, the combination of the main color and the auxiliary color is such that the combination enables the color vision specific person to recognize the display form. For example, it is said that it is difficult to distinguish between red and green, while it is said that it is easy to distinguish between red and blue or blue-green, so a combination of red and blue or a combination of red and blue-green is considered. adopt. Also, as the main color, preferably, the original color associated with the information is used. This is to prevent erroneous recognition of information of a healthy person. For example, in the traffic light of the embodiment described later, “blue” or “blue-green” is set as the main color in accordance with the information that progress is possible. In order to represent the display form by a combination of the main color and the auxiliary color, for example, the outline part of the display form is represented by the auxiliary color, and the other parts are represented by the main color. Of course, the reverse is also possible.

It is preferable that a part represented by the main color and a part represented by the auxiliary color of the display form be recognized as the same image. More preferably, both the display form, the portion represented by the main color, and the portion represented by the auxiliary color are recognized as the same image. For example, when a circle is displayed as a display form, concentric circles having different diameters are represented by a main color and an auxiliary color, and the two are overlapped to form a display form. In addition, the part represented by the main color and the part represented by the auxiliary color can be set to the same form or similar form, and both can be displayed in different areas of the display unit.

[0012] The LEDs other than the display form portion are turned off or turned on at a different luminance from the display form portion. In the case of turning on the light, it is preferable to turn on the light at a lower luminance than that of the display form portion. Further, in the case of lighting, it is preferable to light in a color similar to the above-mentioned main color of the display mode. According to such a display method, it is possible to more effectively display a display form using the luminance difference.

The display mode can be made to blink in accordance with a predetermined rule. This makes it possible to recognize the display shape even for all color blind people. In addition, the use of the blinking display improves the attractiveness, and makes it easy for not only the color vision specific person but also the healthy person to recognize the display form. The display position of the display form can be changed continuously or intermittently. In other words, the display mode is displayed so as to move on the display unit. Such a display method can effectively convey information particularly when displaying information having a direction such as an arrow. Also, a plurality of different display modes can be displayed alternately or continuously. Such a display method is suitable for more appropriately and easily transmitting information.

[0014]

Embodiment 1 Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a diagram showing a traffic signal 10 according to the embodiment. The traffic light 10 is used as a traffic light for pedestrians,
This is for displaying either information indicating that progress is possible or not. The traffic light 10 includes a display unit 11 having a substantially rectangular shape. As shown in FIG. 2, the display unit 11 includes light emitting units 12 in which LEDs are incorporated, arranged in a matrix.
FIG. 3 is a schematic sectional view of the light emitting unit 12. Each light emitting unit 12 has a green LE on both sides of the red LED 22.
Each LE so that D21 and blue LED23 are arranged
D is arranged on the substrate 20 and sealed with a transparent resin 24. The lighting state of each light emitting unit 12 is controlled by the control unit 17. As shown in FIG. 4, the control unit incorporates a pattern control circuit, a luminance modulation circuit, a blinking circuit, and a pattern moving circuit. A lighting state of each light emitting unit 12 is selected by a switch 18 connected to the control unit, and a shape corresponding to information indicating whether progress is possible or not is displayed on the display unit 11 in a predetermined color and brightness. You.

Next, a method of displaying a shape corresponding to each information will be described. In FIG. 1, the traffic light 10 displays the information indicating that travel is possible by a shape 13. The shape 13 is a donut shape, and its contour portion 14 (hatched portion)
Are displayed in bright blue (high brightness), and the central portion 16 is displayed in red. Light-emitting unit 1 other than shape 13
2 is lit blue with low brightness. Of course, it can be lit in a different color other than blue, but preferably, it is lit in a color similar to the color adopted as the main color of the display shape.
Further, the light emitting units 12 other than the shape 13 may be turned off.

The outline portion 14 displayed in blue and the portion 16 displayed in red are each substantially similar to the shape 13 and are grasped as the same image. as a result,
Shape 1 if either blue or red color can be recognized
3 and the same image can be recognized. That is, the color vision singular person can obtain information to be displayed by recognizing any color. In addition, since the shape 13 is displayed by using blue, which is a color generally recognized as indicating that progress is possible, in more areas, it is easily recognized by healthy persons as indicating that progress is possible. You.

FIG. 5 shows the traffic light 10 in a state indicating that the vehicle cannot proceed.
Is shown. In this state, the cross shape 33 is displayed. The shape 33 is also displayed in two colors similarly to the shape 13 described above. The outline portion 34 (hatched portion) and the center portion 36 of the shape 33 are displayed in red and blue, respectively. The combination of colors is not limited to this, and for example, a combination of red and blue-green can be adopted. As in the case of the shape 13 indicating that progress is possible, the healthy person recognizes that progress is impossible due to the shape 34 displayed in red or the overall shape 33. The color vision singular person recognizes the shape 33 by the shape 34 or 36 of the portion displayed in red or blue, or by the luminance difference between the entire shape 33 and other regions.

In this embodiment, the red LED and the green L
Although the light emitting unit 12 capable of emitting an arbitrary color is formed by combining the ED and the blue LED, the light emitting unit 12 may be configured by combining one or two or more LEDs of different colors according to the type of color to be displayed. it can. For example, by combining red and blue-green, the shape 13 and the shape 3
Red LED and blue-green LED to display 3
Can be used. In such a case, the red LE of each light emitting unit 12
By selectively turning on the D or blue-green LED, each light emitting unit 12 is turned on in red or blue-green. Note that the brightness of each LED can be arbitrarily adjusted by using a brightness modulation circuit as in the above case.

Incidentally, the combination of colors to be used is not limited to that of this embodiment, and other combinations can be used. Further, the shape 13 and / or the shape 33 may be blinked according to a predetermined rule, and furthermore, the brightness may be changed and displayed.

[0020]

Embodiment 2 Next, a traffic signal 40 according to another embodiment will be described. Note that the same elements as those of the traffic light 10 are denoted by the same reference numerals, and description thereof will be omitted. The traffic light 40 in FIG. 6 is used as a traffic light for pedestrians, like the traffic light 10 in the first embodiment. In the traffic light 40, the information indicating that the travel is possible or not is separately displayed on the display unit 41 or 42, respectively. That is, when information indicating that progress is possible is displayed, the arrow 43 is displayed on the display unit 42, and the light emitting units 12 of the display unit 41 are all turned off (the state of FIG. 6). Arrow 4
For 3, the outline portion 45 (hatched portion) is displayed in red, and the other portions 46 are displayed in green.
On the other hand, when displaying information indicating that progress is impossible, the display unit 41
Is displayed, and the light emitting units 12 of the display unit 42 are all turned off (the state of FIG. 7). The outline 44 of the shape 44 (hatched portion) is displayed in blue, and the other portions 48 are displayed in red. The lighting state of each light emitting unit 12 is controlled by a control unit 17 (not shown), similarly to the traffic light 10 of the first embodiment. In the traffic light 40, the shape corresponding to each piece of information is displayed on a different display unit, so that it is easier to recognize a change in the displayed information. In the present embodiment, the information indicating that the information is available and the information indicating that the information is not displayed is separately displayed on the two display units. It can also be.

[0021]

Third Embodiment Next, a road sign 50 as another embodiment will be described with reference to FIG. Note that the same elements as those of the traffic light 10 are denoted by the same reference numerals, and description thereof will be omitted. The road sign 50 is installed in the case of a one-way one-way road such as a road under construction, and is a sign for displaying information indicating whether progress is possible or not. The light emitting units 12 are arranged in a matrix on the display section 51 of the road sign 50. The lighting state of each light emitting unit 12 is controlled by the control unit in the same manner as in the case of the traffic light 10 of the first embodiment. In the case of displaying information indicating that progress is possible, an arrow 53 using green and blue (hatched portion) is continuously moved upward from the bottom of the display unit and displayed on the display unit 51 ( FIG. 8A,
See (b), (c). ). The light emitting units 12 in the area other than the arrow 53 are turned off. In the case of displaying information indicating that progress is impossible (FIG. 8D), a shape 6 indicating that progress is impossible is displayed.
3 is displayed in red, white and blue (hatched portions) as shown in the figure. The light emitting units 12 in the area other than the shape 63 are turned off. In road sign 50,
By adding movement to the displayed shape, information can be transmitted more effectively.

The application of the present invention is not limited to a traffic signal, for example, a display board for displaying the congestion status of a parking lot, a traffic display board used on an expressway, a traffic sign, and the like. The present invention can be applied to a display device.

The present invention is not limited to the description of the above-described embodiments and examples. Various modifications are included in the present invention without departing from the scope of the claims and within the scope of those skilled in the art.

[Brief description of the drawings]

FIG. 1 is a diagram showing a traffic light 10 according to an embodiment of the present invention.

FIG. 2 is a partially enlarged view of a display unit of the traffic light 10;

FIG. 3 is a cross-sectional view of a light-emitting unit constituting a display unit of the traffic light 10;

FIG. 4 is a schematic diagram of a control system of the traffic light 10;

FIG. 5 is a diagram showing a state in which the traffic light 10 is displaying information indicating that progress is impossible.

FIG. 6 is a diagram showing a traffic light 40 according to another embodiment of the present invention.

FIG. 7 is a diagram showing a state where the traffic light 40 is displaying information indicating that progress is impossible.

FIG. 8 is a view showing a road sign 50 according to another embodiment of the present invention.

[Explanation of symbols]

 10 40 Traffic light 50 Road sign 11 41 42 51 Display unit 12 Light emitting unit 17 Control unit 13 33 43 44 53 63 Shape displayed

Continued on the front page. (72) Inventor Masanori Nagata 1 Ochiai Nagahata, Kasuga-machi, Nishi-Kasugai-gun, Aichi Prefecture Inside Toyoda Gosei Co., Ltd. (72) Inventor Minoru Minato 1 Ochiai-Ogata, Kasuga-cho, Nishi-Kasugai-gun, Aichi 1 Toyoda Gosei Co., Ltd. In-house F-term (reference) 5C096 AA01 AA11 BA04 CA06 CC06 CC23 DC02 DC03 DC04 DC07 FA03 5H180 AA21 HH14 HH21

Claims (11)

[Claims] A display unit in which two or more types of light emitting diodes having different emission colors are incorporated; a control unit that controls the light emitting diodes to display visual information in a predetermined form on the display unit; An information display device, comprising: a main color and an auxiliary color. 2. The information display device according to claim 1, wherein the predetermined form is a shape or a character. 3. The information display device according to claim 1, wherein the main color and the auxiliary color represent at least an outline of the predetermined form. 4. The information display device according to claim 3, wherein the main color representing the outline and the auxiliary color at least partially overlap with each other. 5. The method according to claim 1, wherein the main color represents a first contour, the auxiliary color represents a second contour, and the first and second contours form the contour of the predetermined form. The information display device according to claim 3, wherein: 6. The control unit according to claim 1, wherein the control unit changes luminance of the primary color and / or the auxiliary color.
5. The information display device according to any one of 5. 7. The information display device according to claim 1, wherein the control unit blinks the primary color and / or the auxiliary color. 8. The information display device according to claim 1, wherein the control unit moves the position of the predetermined form continuously or intermittently. 9. The control unit according to claim 1, wherein the control unit selectively displays predetermined first type visual information and second type visual information. Information display device as described. 10. The image processing apparatus according to claim 1, wherein the part represented by the primary color and the part represented by the auxiliary color are recognized as the same image. An information display device according to any one of the above. 11. A portion displayed in the main color and a portion displayed in the auxiliary color have the same shape or a similar shape.
The information display device according to claim 10, wherein: