JPH0640441B2 - LCD lighting device - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting device used in a store or a general home, and characterized by using a liquid crystal display panel for lighting the liquid crystal lighting device. It is a thing.

2. Description of the Related Art Conventionally, a lighting device for a store or the like generally has a structure in which a light source is arranged in a spherical or polygonal envelope, but such a light source enhances the decoration effect in the store. Therefore, for example, the surroundings of the light source are covered with a color filter to add color.

Further, among those using such a color filter, there is one that changes the projected color by mechanically rotating the color filter.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention However, in the illumination device as described above, each is a repeating pattern as a color, or is a repetition of strength and weakness of a certain specific color, or is poor in decorativeness,
A lighting device that can provide more various patterns or colors has been desired.

The present invention solves this problem, and provides a liquid crystal lighting device that can project various images projected on the display panel by using the liquid crystal display panel and provide various patterns or colors.

Means for Solving the Problems In order to achieve the above object, a liquid crystal lighting device of the present invention displays an image on a liquid crystal panel arranged in a main body housing, and an image on the liquid crystal panel is displayed by light from a light source for projecting light. It is configured to project on the inner surface of the lid that covers the main body housing.

Operation With the above configuration, it is possible to realize an illuminating device that presents various patterns or colors by changing the image displayed on the liquid crystal panel, and in particular, it is possible to provide an illuminating device that is extremely decorative as shop lighting.

Embodiment An embodiment of the liquid crystal lighting device of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing the configuration of an embodiment of the liquid crystal lighting device of the present invention, and FIG. 2 is a sectional view of the same. In FIGS. 1 and 2, reference numeral 1 denotes a main body housing, which has a rectangular parallelepiped shape with a bottom, and an upper portion thereof is an opening. The liquid crystal panel 2, the light source 3, and the reflecting mirror 4 are arranged on the bottom side of the main body housing 1.

A video signal from a video signal source (not shown) is input to the liquid crystal panel 2, and a video is formed on the panel. The liquid crystal panel 2 includes not only so-called liquid crystal display elements but also an image processing circuit and a driving circuit for display.

As a video signal source, a video input terminal is provided in the main body housing 1 and a signal is input from a video tape recorder or the like arranged outside the main body housing 1 to display an image on the liquid crystal panel 2, or A so-called 8 mm video tape recorder may be installed in the main body housing 1 and used as a signal source, and any method may be appropriately selected. LCD panel 2
The image 6 displayed on the screen is projected (projected) by the light from the light source 3 arranged on the back side thereof, and is projected upward by the reflecting mirror 4 by about 9
It is reflected 0 degrees.

Reference numeral 5 is a condenser lens for once condensing the light reflected by the reflecting mirror 4, and 6 is a diffusion transparent prism for effectively diffusing the light condensed by the condenser lens 5. Condenser lens 5
The diffusing transparent prism 6 is disposed above the reflecting mirror 4, and is supported by a supporting means (not shown) so that the light from the reflecting mirror 4 is efficiently guided to the condenser lens 5 and further to the diffusing transparent prism 6. Has been done.

Reference numeral 7 denotes a lid, which covers the upper opening of the main body casing 1 in a detachable manner, and the light diffused by the diffusion transparent prism 6.
That is, an image obtained by projecting the image displayed on the liquid crystal panel 2 is projected on the inner surface thereof. The lid 7 is made of a synthetic resin so as to be translucent so-called milky white so that the projected image can be efficiently formed on the inner surface and the image can be recognized well from the outside. The transparency is determined according to the intensity of 3. Further, the outer shape is a so-called pyramid shape in the present embodiment, but it may be appropriately selected.

As described above, according to this embodiment, by changing the image displayed on the liquid crystal display panel, either monochrome or full-color display can be displayed, and the pattern can be freely changed. Thus, it is possible to provide a highly practical lighting device capable of producing the desired effect.

EFFECTS OF THE INVENTION According to the present invention, it is possible to project various colors or patterns by projecting the image displayed on the liquid crystal panel on the inner surface of the lid of the lighting device by using the light from the light source, and it is possible to project a variety of colors or patterns. It is possible to provide a lighting device that realizes a projection effect and realizes unique lighting, and has a high decorative function particularly as lighting for a store, and has a large practical effect.

[Brief description of drawings]

FIG. 1 is an external perspective view showing the configuration of an embodiment of the liquid crystal lighting device of the present invention, and FIG. 2 is a sectional view of the same embodiment. 1 ... Main body case, 2 ... Liquid crystal panel, 3 ... Light source, 4 ...
… Reflector, 6 …… diffusing (transparent) prism, 7 …… lid.

Claims (3)

[Claims] 1. A liquid crystal panel for displaying an image from a video signal source arranged in a main body housing, a light projecting light source arranged on the back surface of the liquid crystal panel, and a light projecting light source for projecting the light. A reflecting mirror that reflects the light passing through the liquid crystal panel in a predetermined direction, and a diffusion prism that diffuses the reflected light from the reflecting mirror,
A liquid crystal lighting device, comprising: a lid that projects light diffused by the diffusion prism that covers an upper opening of the main body casing, and projects an image formed on the liquid crystal panel on an inner surface of the lid. . 2. An image from a video signal source is displayed on a liquid crystal panel arranged in the main body housing, and the image of the liquid crystal panel is projected on the inner surface of a lid body which covers the main body housing by light from a light source for projecting light. A liquid crystal lighting device characterized by being configured as follows. 3. The liquid crystal lighting device according to claim 1, wherein the lid is made of a milky white synthetic resin material.