JPH0922263A - Display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the visibility of the design patterns at the time of illumination in the nighttime. SOLUTION: Display parts 7 of the design patterns of a light transmission plate 6 are blanked in printing to form the clear display parts 7. The hemming patterns 9 of the display parts 7 are formed to be light transmissible by color printing of the colors different from the colors of colored lenses 3. The parts 10 exclusive of the display parts 7 and the hemming patterns 9 are formed to be opaque by printing in black. The hemming patterns 9 are color-illuminated by the light transmission effect of the light transmission plate 6 and the clear display parts 7 are brightly color-displayed by the colors of the colored lenses 3 by lighting of the light sources 12.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display device used for an indicator of a combimeter mounted on an automobile, for example.

[0002]

2. Description of the Related Art FIGS. 3 to 5 show a display device for indicating an operating position of a shift lever which is incorporated in a conventional combiometer of an automatic vehicle. 20 is an indicator housing constituting a housing of the display device, and 21 is an indicator. A plurality of compartments formed adjacent to each other inside the housing 20,
Reference numeral 22 is a colored lens mounted on the indicator housing 20 in a state of covering the upper openings of the plurality of compartments 21.

The colored lens 22 has a frame pattern 23 as shown in FIG. 4 which constitutes one display portion of a design pattern on the surface of a portion corresponding to each upper opening of the compartment 21 and is made light-transmitting by colored printing. The portion 24 other than the frame pattern 23 is formed as black-based printing so as to be impermeable to light.

Reference numeral 25 denotes a transparent light guide plate superposed on the colored lens 22. The light guide plate 25 has a design pattern smaller than the frame pattern 23 on the back surface of the portion corresponding to each frame pattern 23. A character pattern 26 as shown in FIG. 4, which represents the operation position of the shift lever constituting one display portion, is formed as a colored print so as to be impermeable to light.

27 is a wiring board mounted on the indicator housing 20 in a state of covering the lower openings of the compartments 21, 28 is a lighting bulb provided on the wiring board 27 as a light source inside each of the compartments 21, Reference numeral 29 denotes a lighting valve provided as a light source for lighting the meter dial adjacent to the outside of the compartment 21 of the indicator housing 20. The lighting bulb 29 is turned on during night lighting, and one of the lighting bulbs 28 is By turning on the light, the light emitted from the illumination bulb 29 outside the compartment 21 is guided by the light guide plate 25 and transmitted to the entire periphery of the character pattern 26 to illuminate dimly, and at the same time, the illumination bulb inside the compartment 21. A specific frame pattern 2 located above the illumination bulb 28 through the colored lens 22, the frame pattern 23 and the light guide plate 25. It is obtained so as to illuminate brightly by transmitting only.

6 to 7 show another display device.
The same parts as those in FIGS. 3 to 5 are designated by the same reference numerals.

The colored lens 22 of this display device has a compartment 21.
The frame pattern 30 is colored and printed on the surface of a portion corresponding to each upper opening of the
The other part 24 is formed as black-based printing so as to be impermeable to light.

Further, a light transmissive white type printing 31 is applied to the entire surface of the light guide plate 25, and a character pattern 32 is formed on the white type printing 31 without printing to make the character transparent. A portion 33 other than the pattern 32 is formed as a black-colored print so as to be impermeable to light, and at the time of night illumination, the illumination bulb 29 is turned on, and one of the illumination bulbs 28 is turned on, so that the outside of the compartment 21 is exposed. Lighting bulb 2
The light radiated by the light guide plate 9 is guided by the light guide plate 25 to be transmitted through the entire character pattern 32 to illuminate lightly, and the light illuminated by the illumination valve 28 inside the compartment 21 is applied to the frame pattern 30 of the colored lens 22. Also, through the white-based printing 31 of the light guide plate 25, only the specific character pattern 32 located above the illumination valve 28 is transmitted to illuminate it brightly.

[0009]

However, in the display device shown in FIGS. 3 to 5, the light emitted from the illumination valve 28 inside the compartment 21 is illuminated by the specific character pattern 26 during night illumination. Since only the surrounding frame pattern 23 is transmitted and illuminated for display, the visibility is inferior to that of the specific character pattern 26 itself transmitted through the light emitted from the illumination bulb 28 for bright illumination display.

In the display device shown in FIGS. 6 to 7,
To illuminate and display the light illuminated from the illumination bulb 28 inside the compartment 21 through the frame pattern 30 of the colored lens 22 and the white-based printing 31 of the light guide plate 25 only to the specific character pattern 32 at night illumination. However, the brightness of the specific character pattern 32 is reduced and the emission color is turbid, which reduces the visibility.

Therefore, the present invention is intended to provide a display device capable of improving the visibility of the design pattern at night illumination.

[0012]

According to a first aspect of the present invention, there is provided a light guide plate having a design pattern, a colored lens superposed on the back surface of the light guide plate, and a light source arranged on the back of the colored lens. In a display device in which light of a light source is transmitted through a colored lens to a display portion of a design pattern of a light guide plate to illuminate the display portion, a display portion of the design pattern is removed by printing to form a clear display portion, The edging pattern of the display section is formed in a light-transmissive manner as a colored print with a different color from the colored lens, and at the same time, a portion other than the clear display section and the edging pattern is formed in an opaque state, so that the light guide plate can guide light. The edging pattern is color-illuminated, and when the light source is turned on, the clear display portion is brightly displayed in the color of the colored lens.

According to the first aspect of the present invention, during nighttime illumination, the light guide plate guides light to illuminate the clear display portion in a bright and bright manner, and the edging pattern can be colored in such a manner that the contour is exposed by the coloring and the color is displayed. By lighting the light source of the room, the clear display portion is brightly illuminated and displayed in the specific color of the colored lens, and the visibility of the design pattern is improved.

According to a second aspect of the invention, the design pattern according to the first aspect is formed on the back surface of the light guide plate.

According to the second aspect, since the design pattern is formed on the back surface of the light guide plate, the design pattern is protected by the light guide plate, and the sense of quality and reliability are improved.

[0016]

1 and 2, 1 is an indicator housing, 2 is a plurality of compartments formed adjacently in the indicator housing 1, and 3 is a top opening of each of the plurality of compartments 2. It is a transparent colored lens attached to the indicator housing 1 in this state.

In this colored lens 3, a frame pattern 4 is formed on the surface of a portion corresponding to each upper opening of the compartment 2 as a colored print so as to be light-transmissive, and a portion 5 other than the frame pattern 4 is formed.
Is formed as a black print and is impermeable to light.

Reference numeral 6 denotes a transparent light guide plate which is superposed on the colored lens 3. The light guide plate 6 is a shift lever which constitutes a display portion of the design pattern on the surface of a portion corresponding to each of the frame patterns 4. A character pattern 7 as shown in FIG. 2 representing the operation position is formed without printing so as to have a clear light-transmitting property, and the portion other than the clear character pattern 7 is used as a colored print forming a base 8 of an edging pattern 9 described later. It is made transparent.

A portion 10 other than the edging pattern 9 for edging the character pattern 7 is formed on the base 8 as a black print so as to be impermeable to light.

In the case of this embodiment, the frame pattern 4 is green-based printing, and only the base 8 corresponding to the "R" edging pattern 9 shown in FIG. 2 of the character pattern 7 is red-based printing. The base 8 corresponding to the edging pattern 9 of the character pattern 7 other than "R" is printed in orange.

Reference numeral 11 denotes a wiring board mounted on the indicator housing 1 so as to cover the lower openings of the compartments 2, 12 an illumination bulb provided on the wiring board 11 as a light source inside each of the compartments 2, Reference numeral 13 is an illumination bulb provided outside the compartment 2 of the indicator housing 1 as a light source adjacent to the meter dial for illumination.

According to the structure of this embodiment, at the time of night illumination, the illumination bulb 13 outside the compartment 2 is turned on, and
Internal lighting bulb 1 in one of the compartments 2
When 2 is turned on, the light radiated by the illumination valve 13 outside the compartment 2 is guided by the light guide plate 6 and the clear character pattern 7 and the edging pattern 9 (orange or red color)
And illuminate the character pattern 7 dimly and illuminate the edging pattern 9 with its coloring to show the contour and display the color, and the light emitted from a specific illumination valve 12 of the plurality of compartments 2. Through the frame pattern 4 of the colored lens 3, the light guide plate 6 and the base 8.
Is transmitted through only the specific character pattern 7 and the edging pattern 9 located on the upper part of the above, and the specific clear character pattern 7 is displayed clearly and brightly in a color by the frame pattern 4 (greenish color) of the coloring lens 3. , The specific character pattern 7 can be visually recognized well.

In this embodiment, as shown in FIG. 1, the light guide plate 6 has a character pattern 7, a base 8, and an edging pattern 9 on the surface thereof.
Although the design pattern including the black print 10 is provided, if the design pattern is provided on the back surface of the light guide plate 6, the design pattern can be protected by the light guide plate 6.

[0024]

As described above, according to the present invention, the following effects can be obtained.

According to the first aspect of the present invention, the display portion of the design pattern of the light guide plate is not printed, and the border of the display portion is formed to be light-transmissive for colored printing with a color different from that of the colored lens. The clear display part is illuminated by the light guiding function of the light plate in a bright and bright manner, and the outline of the edging pattern can be displayed by coloring to display the color, and the clear display part can be colored by lighting the light source in the compartment. The visibility of the design pattern can be improved by vividly displaying a bright color in a specific color.

According to the second aspect, since the design pattern is formed on the back surface of the light guide plate, the design pattern can be protected by the light guide plate, and the sense of quality and reliability can be further improved.

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of the present invention.

FIG. 2 is a front view showing the entire light guide plate of the same embodiment.

FIG. 3 is a cross-sectional view illustrating a conventional display device.

FIG. 4 is an exploded perspective view of a light guide plate and a colored lens of the conventional display device.

FIG. 5 is a front view showing a part of the conventional display device.

FIG. 6 is a cross-sectional view showing another conventional display device.

FIG. 7 is a front view of the conventional display device.

[Explanation of symbols]

 1 Indicator housing 2 Compartment 3 Colored lens 4 Frame pattern 5 Black-based printing 6 Light guide plate 7 Character pattern (design pattern display part) 8 Base 9 Border pattern 10 Black-based printing 12 Illumination bulb (light source)

Claims (2)

[Claims] 1. A design of a light guide plate comprising a light guide plate having a design pattern, a colored lens superimposed on the back surface of the light guide plate, and a light source arranged on the back of the colored lens, the light of the light source passing through the colored lens. Make it transparent to the pattern display,
In a display device configured to illuminate the display section, the display section of the design pattern is removed by printing to form a clear display section, and the edging pattern of the display section is light-transmissive as a colored print different in color from the colored lens. In addition to forming the clear display portion and the portion other than the edging pattern to be impermeable to light, the edging pattern is color-illuminated by the light guiding action of the light guide plate, and the clear display portion is colored by turning on the light source. A display device characterized by being brightly displayed in different colors. 2. The display device according to claim 1, wherein a design pattern is formed on the back surface of the light guide plate.