JPH048467Y2 - - Google Patents

Description

[Detailed Description of the Invention] Technical Field The present invention relates to a display device, and more particularly to a display device that is suitably implemented in a vehicle-mounted speaker box and can display characters such as letters and symbols.

Background Art For example, an in-vehicle speaker box placed near the back seat of a car has characters such as letters and symbols drawn on the side facing the rear window so that it can be seen by people outside the car. .

A typical prior art is shown in FIG.
The in-vehicle speaker box 1 has a roughly inverted triangular prism shape, with a speaker (not shown) arranged on the front panel 2, and characters 3 such as letters and symbols on the rear panel 5.
A display section 4 on which is displayed is formed. The speaker box 1 is placed on, for example, a rear tray near a rear seat, with the display section 4 facing outside the vehicle and the front plate 2 on which the speakers are arranged facing inside the vehicle.

In such a speaker box 1, the part of the character 3 drawn on the display section 4 is made of a light-transmitting member, and the remaining part is made of a light-blocking member.
A light source (not shown) is provided inside the speaker box 1, and when driving at night, the display section 4 is illuminated from inside the speaker box 1, so that the character 3 can be seen both during the day and at night. Some are designed to improve effectiveness and decorativeness.

Problems to be Solved by the Invention However, in the speaker box 1 as described above, although the displayed character 3 can be viewed both during the day and at night, the displayed content remains the same and does not change.

Therefore, a display device that can change the displayed content has been desired.

An object of the present invention is to solve the above-mentioned technical problems and to provide a display device that can switch the display contents between daytime and nighttime.

Means for Solving the Problems The present invention comprises a light source and a display substrate with translucent properties disposed in front of the light source, the light source side having a selected light-transmitting area and a light-blocking area. and a substrate having a light reflecting area selectively formed on the front side thereof to constitute a second design, and with respect to the optical axis direction of the light source light, at least The display device is characterized in that the light reflection region overlapping with the light transmission region is formed from a reflection member having light transmission properties.

Function The display device according to the present invention allows the second design to be seen by the light reflecting area formed on the front side when the front side is brighter than the light source side, such as during the daytime. When the front side is dark, such as at night, the internal light source is turned on and the light from the light source is transmitted through the transparent area.
Make the design visible. At this time, with respect to the optical axis direction of the light source light, at least a light reflecting area corresponding to this overlapping area is formed from a reflecting member having light transmittance. Therefore, the first design can be visually recognized when illuminated by the light source. This allows a single display device to display different content during the day and at night.

Embodiment FIG. 1 is a perspective view showing the appearance of a speaker box 11 to which a display device according to an embodiment of the present invention is applied. The speaker box 11 is formed roughly in the shape of an inverted triangular prism, with a front panel 12 on which speakers (not shown) are placed facing inside the vehicle, and a back panel 13 on which characters to be displayed are drawn facing outside the vehicle, such as a rear tray near the rear seat. will be placed on.

As described later, a light-transmitting area and a light-blocking area are selectively formed on the back plate 13 of the speaker box 11, and a first display part 14 shown surrounded by a broken line is formed.
and a second display section 1 formed by a light reflecting area.
5 is provided.

FIG. 2 is an exploded perspective view showing the structure of the first display section 14 and the second display section 15 according to an embodiment of the present invention.
FIG. 3 is a sectional view showing the principle of the present invention. 1st
The display unit 14 displays a first pattern to be displayed in order to selectively form a light-transmitting area and a light-blocking area on a first substrate 14a, which is realized by adding black pigment to a synthetic resin material such as acrylic resin. A portion of the first character (letters "EF" in this embodiment) is made into a transparent hole, and the remaining portion forms a light-shielding region 14c.
The first character portion is a light-transmitting region 14b.

The second display section 15 is made of a translucent synthetic resin material such as acrylic, and is placed on a second substrate 15a that serves as a light guide plate and is treated with light dispersion (so-called smoke treatment). The second character which is the second design (letters “ABC” in this example)
This portion is formed of the half mirror material 15b.

The first substrate 14a is stacked on the second substrate 15a,
A light source 16 such as an incandescent lamp is provided behind the first substrate 14a (on the right side in FIG. 2). When the light source 16 lights up at night, etc., the light L from the light source 16
is the first substrate 14 as shown by the virtual line x.
It passes through the transparent region 14b of a, that is, the first character (letter "EF"), and further transmits light through the second substrate 15a.
The first character 14
to appear.

At this time, as shown by diagonal lines, the second substrate 15
An overlapping portion 15c is created in which the second character, that is, the half mirror material 15b provided on the surface a overlaps the first character 14x. This overlap part 1
5c has a light transmittance that is naturally lower than that of other parts of the first character 14x due to the half mirror material 15b, so if this continues, a difference in brightness will occur in the first character 14x appearing on the second substrate 15a. The display becomes unnatural.

In order to correct the decrease in light transmittance and prevent such problems, the half mirror material 15b,
A transparent region 15d is provided in a portion of the first substrate 15a corresponding to the overlapping portion 15c where the first character 14x to be exposed overlaps, and the light transmittance is increased compared to the other portions. This eliminates the above-mentioned difference in brightness.

FIG. 4 is a perspective view illustrating the display operation at night in this embodiment. In FIG. 4, parts corresponding to those in FIGS. 1 to 3 described above are given the same reference numerals. In FIG. 4, when the light source 16 provided on the right side of the first substrate 14a is turned on, the light L from the light source 16 passes through the transparent area (indicated by reference numeral 14b in FIG. 2) of the first substrate 14a. and the second substrate 1
5a, and a first character 14x (letter "F") appears on the second display section 15.

The light L also passes through a portion of the second character (letter "C" indicated by a broken line) formed of the half mirror material 15b on the second substrate 15a, but as described above, a transparent region 15d is formed in this portion. is corrected for the decrease in light transmittance, so the first
There is no difference in brightness and darkness in the character 14x, and a natural display is performed.

FIG. 5 is a perspective view illustrating the daytime display operation of this embodiment. In FIG. 5, parts corresponding to those in FIGS. 1 to 4 described above are given the same reference numerals. External light S incident from the left side of the second substrate 15a
is reflected by the second character (letter "C") formed on the second substrate 15a with the half mirror material 15b, and the second character is visually recognized. This allows a different display to be seen during the day than at night, improving the display effect.

In the above-described embodiment, the first substrate 14a and the second substrate 15a are formed separately, but other than the first character to be displayed on the back surface of the second substrate 15a by printing or painting, A portion is drawn to form a light-shielding region 14c, and the second substrate 1
A second character may be formed on the surface of 5a in the same manner as described above, whereby the display section based on the present invention can be realized with a single substrate, and production costs can be reduced. I can do it.

Effects As described above, in the display device according to the present invention, when the front surface of the display part is dark, such as at night, the internal light source is turned on, and the light from the light source is transmitted through the light-transmitting area to make the first design visible. At this time, with respect to the optical axis direction of the light source light, at least a light reflecting region overlapping with the light transmitting region was formed from a light transmitting reflective member. This prevents the first design from being obscured by the second design located in front of it. Also, when the front side is bright such as during the day,
The first pattern consisting of the light-transmitting area is not visible, but the second pattern based on the light reflected by the light-reflecting area is visible. Since the display contents can be changed between daytime and nighttime in this way, a display device with improved display effects can be realized.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing the appearance of a speaker box to which a display device according to an embodiment of the present invention is applied, FIG. 2 is an exploded perspective view showing the structure of a display section according to an embodiment of the present invention, and FIG. Sectional view showing the principle of the present invention, No. 4
FIG. 5 is a perspective view illustrating the display operation in the nighttime of this embodiment, FIG. 5 is a perspective view illustrating the display operation in the daytime of this embodiment, and FIG. 6 is an external view showing the prior art. DESCRIPTION OF SYMBOLS 11... Speaker box, 14... First display part, 14a... First substrate, 14b... Transparent area,
14c... Light shielding area, 15... Second display section, 15
a...Second substrate, 15b...Half mirror material, 1
5c...Overlapping part, 16...Light source.

Claims (1)

[Scope of Claim for Utility Model Registration] A light source and a light-transmitting display substrate disposed on the front side of the light source, in which a light-transmitting area and a light-blocking area are selectively formed on the light source side. a first pattern is formed, and a light reflecting area is selectively formed on the front side of the substrate to form a second pattern, and at least the light transmitting area is formed with respect to the optical axis direction of the light source light. A display device characterized in that the light reflecting region overlapping with is formed from a reflecting member having light transmittance.