JPS59228691A - Light transmission type display method, body and apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Technical Field) The present invention relates to a transmitted light display method used in a lighting frame, etc., a display body used in this method, and a display device using the same.

(Background Art) Conventionally, display bodies used in illumination frames are designed so that a natural transmitted light screen can be obtained when the display surface is illuminated from behind and light is transmitted through the display surface. In this case, an unnatural image is one in which the entire image is dark due to the dark colors, or the contrast is too strong, making it relatively difficult for neutral colors to appear clearly in landscape paintings or portraits. , When displaying characters or geometric patterns with few neutral colors, the color tone may be dull, making it difficult for the viewer.
It refers to something that lacks harmony and is extreme, giving an unnatural impression. Note that intermediate colors include gray in the case of achromatic colors. Contrast is the degree of clarity of a screen caused by differences in brightness and color tones such as chroma and one hue. Incidentally, the suitability of a transmitted light screen largely depends on the brightness of the environment. However, the current display force method is not adaptable to such changes in the environment. If a display body that has not been specially designed is illuminated with transmitted light, the display pattern etc. will be brightly highlighted by the transmitted light.
A phenomenon occurs in which the contrast of the transmitted light screen becomes extremely weak or the color tone becomes pale and dull. For this reason, the transmitted light display is formed in advance by making the colored portion of its display surface a darker color so as to emphasize the change in shading in the transmitted light.

This will be explained using drawings. 1 to 3 show conventional display states using transmitted light in environments El and E2 with different brightness. The display body 1 consists of a base material 2 and a display surface 3 formed thereon, and the light L1 emitted from the light source 4 is
When the light passes through the display body 1 and the diffuser plate 5 interposed on the light source side thereof, a screen is formed in which transmitted light CI and C2 are contrasted according to the displays a and b that have passed through. In this case, if we simply compare the difference in light brightness, C2>
C1, and is set to provide a harmonious contrast. Therefore, the viewer perceives the display body as a natural screen under transmitted light.

However, if this display is performed in a different environment, for example in a darker room E2, the result will be as shown in FIG. That is, the light Ll passes through the display panel l and forms a contrast transmitted light screen consisting of the lights C3 and C4 according to the displays a and b. However, since the environment E2 is dark, the amount of transmitted light is relatively large, resulting in a blurred screen with dull bright colors. Also, as shown in Figure 3, the light L2 with reduced light intensity
If irradiation is performed, the contrast of the screen made up of the transmitted light C5 and C6 becomes appropriate, but on the other hand, the entire screen becomes dark, resulting in an inappropriate transmitted light screen. Therefore, when used in an environment different from the originally set environment (conditions), the conventional one is not adaptable.

(Objective) It is an object of the present invention to provide a display power method for solving the above-mentioned disadvantages, and a display body and a display device used therefor.

(Structure) The transmitted light type display method of the present invention includes a transmitted light display panel having a display of appropriate patterns and colors, and a transmitted light type contrast enhancement for emphasizing the color and contrast combined with the display panel. The present invention is characterized in that a display body having a composite structure including a filter is illuminated from the side of the contrast enhancement filter to form a transmitted light screen.

The display body of the present invention consists of a light-transmitting display panel having a display of an appropriate pattern or color, and a light-transmitting contrast enhancement filter combined with the display panel for emphasizing the color or contrast. It is characterized by being formed by overlapping a panel and the contrast enhancement filter.

A display body having a composite structure consisting of a light-transmitting display panel displaying at least an appropriate pattern or color, and a light-transmitting contrast enhancement filter combined with the display panel for emphasizing the color or contrast; A transmitted light type display device comprising: a light source; the light source is placed on the side of the contrast enhancement filter for illumination.

(Embodiment) FIGS. 4 to 6 show a first embodiment of the display force method and display body of the present invention. The display body 8 shown in FIG. 4 is made up of at least two or more plate-like bodies, and includes a display panel 1. and a plurality of contrast enhancement filters 7 interposed between the display panel 1 and the light source 4. The display panel 1 is made by printing or printing a display surface 3 having an arbitrary pattern or the like on a light-transmitting base material 2 such as paper or plastic film, as shown in FIG. The following explanation describes the case of printing).

The display surface 3 is adjusted for transmitted light display, and displays nine dark-colored patterns a, each with a different contrast, such as letters, symbols, etc.
b is formed, and as a result, the entire screen is dark.

In this embodiment, the contrast enhancement filter 7 is the sixth
As shown in the figure, the same pattern as the display panel 1 is printed on transparent paper, plastic film, or the like. Further, a diffusion plate 5 is usually arranged between the display body 8 and the light source 4 to uniformly diffuse the light. When this display body 8 is illuminated with light L3 from the light source 4 as shown in FIG. 4, the light L3 advances in the order of 4→5→7→2→6. At this time, the contrast of the transmitted light forming the transmitted light screen is adjusted in two stages by a contrast enhancement filter and a display panel.

In this case, since the displays have the same form, the outlines of the displays match, and the transmitted light screen has a well-defined outline and is very sharp. In particular, the contrast-enhanced transmitted light can make the transmitted-light screen extremely sharp by the contrast-enhancing filter 7. As a result, a screen that is less affected by changes in indoor light and the environment can be obtained. Furthermore, by appropriately replacing the contrast enhancement filter, environmental adaptability can be further increased. Furthermore, it is possible to easily produce neutral colors, and it is also possible to correct images that have become unnatural due to excessively high contrast.

Next, a display device using the display body 8 will be explained with reference to FIG. This display device is configured as a lighting device, and includes a base frame 9. Diffusion plate 5. Contrast enhancement filter 7, display panel 1. It is composed of a protective cover 11. The base frame 9 is box-shaped with a peripheral wall. An appropriate number of fluorescent lamps 10 as light sources are housed inside the base frame 9. The diffusion plate 5 serves to uniformly diffuse the illumination light over the entire surface, and is made of a milky white acrylic plate. The display body 8 shown in FIG. 4 is used. In this case, the display panel 1 is placed facing the viewer. The protective cover 11 is a cover for protecting the display body 8, and is composed of a transparent portion 12 made of transparent acrylic acid and a peripheral wall 13. The peripheral wall 13 is adapted to fit the peripheral wall of the base frame 9. Now, these are the base frame 9, the diffuser plate 51, the display body 8. When the protective covers 11 are stacked in the same order and the fluorescent lamp 10 is turned on, the light is first contrast-enhanced by the contrast-enhancing filter 7, which makes up the display 8, because the contrast-enhancing filter 7 that makes up the display 8 is on the light source side, and then the light is displayed. By passing through panel l,
Since the contrast is adjusted in two stages, it is possible to provide a good screen with appropriate contrast. Furthermore, by adjusting the contrast enhancement filter 7, it is possible to easily adapt to changes in different indoor lighting conditions, for example, without changing the display panel 1.

Formation of the display surface in the display body of the present invention can be performed not only by printing but also by direct printing (printing) on the base material (photographic paper) using a photographic method. Others, such as hand-painted
Of course, methods such as spray painting are also possible.

Furthermore, the display body may be a combination of a plurality of contrast enhancement filters, or may be integrated by laminating them by adhesion or the like. Alternatively, the display surface and the contrast enhancement filter may be printed (printed) on both sides. An example of this is shown in FIG.

That is, the display surface 3 and the contrast enhancement filter 7 are simultaneously printed or simultaneously printed on both sides of the base material 2. In the case of printing, after printing the -force display surface, the negative is reversed and the display is printed on the opposite side of the base material 2, thereby easily forming a display surface having the same shape.

Further, the contrast enhancement filter may be displayed in exactly the same form as the display panel, or may be a different one. In this case, since the outlines of the display match, the transmitted light screen becomes very sharp with well-defined outlines.

Among the display elements of the display panel, the contrast enhancement filter may be used by changing the color or the like arbitrarily. For example, if the contrast enhancement filter is patterned with different colors, the color effect will be emphasized.

Further, the contrast enhancement filter may be a patternless color filter. In this case, the color tone of the screen can be changed according to the TPO.

The display surface can also be a screen for reflected light, as shown in FIG. In this case, display surface 3 of display panel l
are adjusted in advance to obtain natural contrast and color tone under reflected light. As shown in FIG. 9, when the light source 4 is not used for illumination, the light ray C
The display progresses from display panel 1 to (reflection) viewer 6, and viewer 6 can see the screen with natural reflected light. That is, this is because the display panel 1 is printed as a reflective display. At this time, the contrast enhancement filter 7 hardly affects the reflective screen of the display panel l.

Furthermore, when using this display and illuminating with the light source 4 as shown in FIG. The transmitted light screen of the display panel 1 can be seen. In other words, if the display panel l is viewed alone using transmitted light, the contrast will be very weak, but due to the contrast enhancement filter 7 interposed between the display panel l and the light source 4, the patterns on both panels are almost the same. Therefore, the color tone of the colored parts becomes deeper, and the difference between brightness and darkness becomes significantly larger, so the contrast is emphasized.

As a result, although the display panel 1 is printed using reflected light, a screen with a contrast comparable to or better than that of a general transmitted light display can be obtained. Furthermore, even pale intermediate colors can be easily and clearly produced.

(Function and Effect) According to the display method of the present invention, the transmitted light forming the transmitted light screen is contrast-adjusted in at least two stages, and the transmitted light whose contrast is first adjusted is strongly enhanced by the presence of the contrast enhancement filter. Since the contrast can be emphasized, the final transmitted light screen created by this transmitted light will be a clear screen with appropriate contrast. Therefore, in the display using this method, a good screen can be provided without being greatly influenced by the screen environment 1, for example, the conditions of indoor lighting. In other words, this is a display method with extremely high environmental adaptability.

Furthermore, the display of the present invention can provide a clear transmitted light screen with appropriate contrast by adjusting the contrast enhancement filter, so there is no need to recreate the display screen each time depending on the environment. Therefore, a common display panel can be used in any environment.

Furthermore, if the display device of the present invention is used, it is possible to display with high environmental adaptability as described above, so it can be used in any installation location (conditions) such as outdoor or indoor, making it a highly versatile device. becomes.

[Brief explanation of drawings]

1 to 3 are perspective views showing a conventional transmitted light display method. FIG. 4 is a perspective view showing a transmitted light display method according to an embodiment of the present invention. FIG. 5 is a perspective view showing an embodiment of the display panel. FIG. 6 is a perspective view showing an embodiment of the contrast enhancement filter. FIG. 7 is a perspective view showing an embodiment of the display device. FIG. 8 is a perspective view showing another embodiment of the display body. FIG. 9 is a perspective view showing an embodiment using another display panel. 1, 8: Display panel, 22 base material, 3: Display surface. 4: Light source, 5: Diffusion plate, 6: Viewer, 7: Contrast enhancement filter, 9: Base frame, ll: Protective power/heh.

Claims (3)

[Claims] (1) A composite structure consisting of a transmissive display panel displaying appropriate patterns and colors, and a transmissive contrast enhancement filter combined with the display panel to emphasize the color and contrast. A transmitted light type display method, characterized in that a transmitted light screen is formed by illuminating a display body from the side of the contrast enhancement filter. (2) Consisting of a transmissive display panel displaying appropriate patterns, colors, etc., and a transmissive contrast enhancement filter to be combined with the display panel to emphasize the color and contrast; A display body comprising the contrast enhancement filters stacked one on top of the other. (3) A display body with a composite structure consisting of a light-transmitting display panel having at least an appropriate pattern or color display, and a light-transmitting enhancement filter combined with the display panel to emphasize the color or contrast. . A transmitted-light display device comprising an arbitrary light source, the light source illuminating from the side of the contrast enhancement filter.