JPS61140991A - Color display - 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] [Field of Industrial Application] The present invention is a color display, more specifically, a color display, in which filters of each color are placed inside the display, and these filters are opened and closed using magnetic attraction and repulsion. The present invention relates to a device that performs color display using a combination of filters.

[Conventional technology]

Conventional displays include a vertical reversible display whose display surface is made up of two upper and lower blades that are opened by the rotation of a blade wheel driven by a synchronous motor; Horizontal reversible display in which the left and right sides are opened when rotated to form the display surface, spherical display in which a sphere with a built-in permanent magnet is reversed 180 degrees counter-axis due to attraction and repulsion from an electromagnet, and spherical display Based on the same principle as a 7-bar display using rod-shaped segments that are reversed by magnetism, an electronic display using a lamp, and a 2- or 4-sided display equipped with a permanent magnet, it can be rotated by attraction and repulsion with an electromagnet. A two-sided or four-sided display, a guest-host type color LCD character display, and a four-color cubic display can be rotated by 90° or 180° in both forward and reverse directions depending on the polarity of the 4-pole drive magnet.
Four-color displays that change colors by rotating are known and widely used.

[Problem that the invention seeks to solve]

In any of the above, it is not possible to display each desired color on one fixed display surface.

If such a display surface is provided, a display surface that displays more colors than before will be provided, which will immediately respond to the diversification of information, so development along this line of color display devices will occur. is requested.

Means for Solving the Problems c] The present invention provides a color display that solves the above problems, and the present invention provides a color display having a light source on the right side and a display surface on the other side. Due to the magnetic attraction and repulsion between the permanent magnet provided in the filter and the drive unit, any one of the filters can determine the position in the display where it blocks the light from the light source and the position where it does not block the light from the light source. The driving section is made of a semi-hard magnetic material and a coil wound around it, and the driving section is made of a semi-hard magnetic material and a coil wound around it. It is possible to construct a structure in which the filter is held by residual magnetism.

[Effect]

In the above color display, filters of each color are arranged in advance in the color display having one display surface, and the desired filters are opened and closed using magnetic attraction and repulsion to display the display. White light is irradiated toward the filter from the opposite side of the screen, and a desired color is displayed on the display screen using a predetermined combination of filters.

〔Example〕

Embodiments of the present invention will be described in detail below with reference to the drawings.

An embodiment of the present invention is shown in a perspective view and a plan view in FIG. 1 (al and mountains), and in the figure, 11 is a color display, 12 is a display surface, 13 is a light source (white light), 14a, 14b ,
,,.

14f is a drive unit, 15a, 15b, and 15c are filters, and 16a.

16b, 16c are rotating shafts, 17a, 17b, 17
c is a permanent magnet, 18a + 18b + 18c is a support rod,
19a, 19b, and 19c indicate frames, respectively.

The filters have rotating shafts 16a+t6b and 16c, respectively.
The support rods 18a, 18b, and 18c are
) It is attached so that it can rotate <90 degrees as shown by the arrow.

The filters 15a, 15b, and 15c are each arranged in a frame 19.
Permanent magnets 17a, 17b, and 17c are fixed to the opposite side of the rotating shaft of the frame, and their north and south poles are as shown in FIG. In addition, in FIG. 2(a), the filter 15a is located at the position shown by the peak in FIG. 1, and in FIG.

Next, the filter operation is performed on the filter 15a as shown in FIG.
This will be explained with reference to the layout diagrams 1, (b), and (c).

First, referring to FIG. 3(a), the permanent magnet 17a is attached to the frame 19a so that the left side is the S pole (indicated by S in the figure) and the right side is the N pole (indicated by N in the figure). It is being The driving parts 14a, , , , 14f have semi-hard magnetic bodies 20a, , , 20f and coils 21a, , , , respectively.
21f.

Next, as shown in FIG. 3 (bl), the coils 21d, 2
When a current is applied to 1a in the direction shown, the frame 19a and therefore the filter 15a move toward the drive section 14a due to magnetic attraction and repulsion. Even if the electricity is stopped here, the semi-hard magnetic material 20a
, 20d does not change the display state in FIG. 3(b).

Next, when a current is applied to (as shown in FIG. 3(C)), the frame 19
(a) Therefore, the filter 15a moves toward the driving portion 14d and maintains the state shown in FIG. 3 (C1) as long as residual magnetism exists.

Filter 15a in display device 11 as described above.

By centering or resetting 15b and 15c, respectively, by a control device (not shown), any combination of colors can be displayed on the display surface 12.

For example, the filter 15a is cyan, the filter 15b is magenta, 1
When 5c is yellow, the colors obtained by combining these filters are as follows. In addition, in the following, the mark X indicates the filter open state, and the mark O indicates the filter closed state.

Filter 15a 15b 15c Display color 0 x x x white 1 x x ○ yellow 2
× Ox Magenta 3X O○ Red 4 0 × × Cyan 50 ×
○Green 600×Blue 7000 Black The above-mentioned area is shown in FIG. 4. In the figure, the shaded area is the light passing area, and B, G, and R indicate blue, green, and red, respectively.

The light source 13 only needs to be a white light source, and for example, a commercially available fluorescent light can be used. Although the above example describes the case where three filters are used, the scope of application of the present invention is not limited to that case, but also extends to the case where any number of filters of any color are used. It is.

〔Effect of the invention〕

As explained above, according to the present invention, by arranging filters of each color in the display and opening and closing these filters by magnetic attraction and repulsion, it is possible to display various colors on one display surface. This has the effect of expanding the scope of use of the display and realizing a variety of information displays using colors.

[Brief explanation of the drawing]

Figures 1(a) and (1) are perspective views and plan views of one embodiment of the present invention, and Figures 2(a) and (1)) are views of the display of Figure 1 rotated by 90° with respect to each other. Diagram showing the filter, Figure 3 (
a), (b), and (C) are layout diagrams showing opening and closing of the filter in FIG. 2, and FIG. 4 is a diagram illustrating color display by the filter of the embodiment in FIG. 1. In the figure, 11 is a color display, 12 is a display surface, I3 is a light source, 14a, ..., 14f are drive units, 15a, 15b
, 15c is a filter, 16a, 16b, 16c are rotating shafts, 17a, 17b, 17c are permanent magnets, 18
a, 18b, 18c are support rods, 19a, 19b. 19c is a frame, 20a, ..., 20f are semi-hard magnetic materials,
21a, . , , 21f indicate coils, respectively. Patent Applicant: Fujitsu Machinery and Electric Co., Ltd. Agent Patent Attorney: Hajime Kuki Form: Yoshiyuki Okan Mo 2 Figure Cyan GR GR Figure 3 15q I')G

Claims (2)

[Claims] (1) A color display with a light source on one side and a display surface on the other side is used, and the magnetic attraction and repulsion between the permanent magnet provided in the filter and the drive unit allows the arbitrary A color display device characterized in that a desired color is displayed on a display surface by moving between a position within the display device where an object blocks light from a light source and a position where it does not block light from a light source. (2) The drive section is made of a semi-hard magnetic material and a coil wound around it, and is configured to hold the filter by residual magnetism when the current to the coil is stopped. Color display device according to item 1.