JPS6377001A - Light control film - Google Patents

Abstract

PURPOSE:To enable a color display without any blackish place even in a no- lighting state by forming a light reflecting layer on the top surface of a louver body and adhering a light-transmissive color film to the top surface of the louver body. CONSTITUTION:A light control film 1 is constituted by adhering and laminating the light-transmissive color film 12 and transparent film 13 on the top and reverse surfaces of the louver body 11, and the light reflecting layer 14 is formed on the top surface of the louver body 11. The louver body 11 is a parallel, lattice, or honeycomb type thin plate body, and absorbs light and does not reflect it to have light shielding performance, and this body is manufactured properly by a conventional method. Further, the light reflecting layer 14 is formed by printing and etching ultraviolet-ray curing paint at the same time with the formation of the louver body 11, or printing light-reflecting paint only on the end surface of the louver body 11 before the color film 1..2 is laminated. Consequently, a color display plane is formed whether lighting is used or not.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a light control film used for nameplates and the like.

<Prior art> Light control films have the function of blocking only light rays in a specific direction from passing through, and are used, for example, in various display parts on automobile dashboards, so that light irradiated from inside is prevented from passing through the surface. It has the effect of preventing light from being scattered and reflected on surrounding glass such as a windshield, causing poor visibility at night.8 <Problems to be solved by the invention> Display section using light control film During the daytime when no lighting is used, the interior is dark and appears black.
The display is difficult to see and the design gives an unfavorable impression.

The present invention has focused on this point, and has been made with the object of providing a light control film that can constitute a display section that does not appear black even when not illuminated and can display color.

Means for Solving the Problems> In order to solve the above problems, the light control film of the present invention has a light-reflecting layer formed on the front side of the louver body, and a translucent color on the front side of the louver body. Glue the film.

Function: The light-reflecting layer on the front side of the louver body reflects light incident from the outside, making the display surface brighter, which prevents the display from looking black when the internal lighting is not in use. Therefore, it does not adversely affect the amount of light irradiated from inside. Since this reflected light passes through the color film, the display surface is colored. Therefore, not only the display becomes easier to see, but also the design is improved.

<Example> An illustrated embodiment will be described below.

FIG. 1 shows an example of a display section using the light control film of the present invention as a nameplate, where 1 is the light control film and 2 is a light source disposed inside.

The light control film 1 has a structure in which a translucent color film 12 and a transparent film 13 are adhesively laminated on the front and back surfaces of a louver body 11, respectively, and is basically a conventional light control film. Although it is similar to the film, the present invention differs in that a light reflecting layer 14 is formed on the front side of the louver body 11. The louver body 11 is a parallel, lattice-shaped, honeycomb-shaped, etc. thin plate-like object that absorbs light but does not reflect light, and can be manufactured as appropriate using conventionally known methods. . The light-reflecting layer 14 can be formed, for example, by printing an ultraviolet curing paint and etching it at the same time as the louver body 11 is formed, or by printing a light-reflective paint only on the end face of the louver body 11 before laminating the color film 12. ,
It can be formed by bonding a metal thin film having a pattern having the same planar shape as the louver body 11. In addition, 3 in FIG. 1 indicates the color film 12.
This is a light-absorbing paint layer formed on the front side by cut-out printing. Light is transmitted forward from the cutout part.

FIG. 2 shows an example of the shape of the light reflecting portion 14 formed in this way, and a light reflecting layer 4 having the same shape is formed on the front side of the honeycomb-shaped louver body 11.

The light control film 1 of this embodiment has the above-described configuration, and at night, the light rays from the light source 2 are transmitted upward in FIG. 1 within a certain angle determined by the height of the louver body 11 and the wall spacing. be done.

The transmitted light at this time is colored by passing through the color film 12. However, this transmitted light
4, there is no adverse effect at all, and the same light control effect as before is exerted as is. Also, during the daytime when light source 2 is not used, the area where light source 2 is placed is
Although it is darker than when it is illuminated, the light 4 incident from the outside (from the upper part of FIG. 1) is reflected by the light reflection layer 14 and colored by the color film 12, so that the overall appearance is as seen from the outside. The display looks bright and easy to read, and it doesn't look black with holes in it.

In addition, the light reflecting layer 14 may be formed of a material with high reflectance,
The effect can be further enhanced by making the surface reflect light diffusely.

Note that if the display unit as in the embodiment is directly incorporated into an operation knob or the like, an operation unit having a display with internal illumination can be obtained.

The present invention is not limited to the above embodiments, but can be implemented in various other embodiments. For example, the color film 12 may be one in which the film itself is colored as shown in the examples, or a transparent film coated with a light-transmitting color paint on one side.

<Effects of the Invention> As described above, since the present invention forms a light-reflecting layer on the front side of the louver body, when used in a display section with internal lighting, the display does not appear black during the daytime. It is easy to see, and the display part has a good design.It also has the advantage that it can be easily colored to make it visible during the daytime, making it possible to display in color.

Furthermore, since a color film is adhered to the front side of the louver body, the display surface can be colored in both illumination and non-illumination conditions.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a sectional view of an embodiment of the present invention, and FIG. 2 is a plan view showing an example of the shape of a light reflecting portion. l...Light control film, 11...
Louver body, 14... light reflecting part.

Claims (1)

[Claims] (1) A light control film characterized in that a light reflecting layer is formed on the front side of a louver body, and a translucent color film is adhered to the front side of the louver body.