JPH07248731A - Display device - Google Patents

Abstract

PURPOSE:To lessen the burden on the eyes of user who particularly uses a display device of computer apparatus, by providing a display device which lessens the burden on the user's eyes. CONSTITUTION:The display device 1 to be used for a computer apparatus is composed of many displays 6 which are rotationally displaceably supported within many grooves 10 of a supporting board 7 and have a round columnar shape, many displacing means (electromagnets) 8 which are disposed on these many displays 6 and apply attraction force and repulsion force to permanent magnets arranged within the displays 6 and a controller 3 which respective independently controls the many electromagnets 8. The displays 6 have white and black colors on their side faces and the N poles of the internal permanent magnets face the black and the S poles the white. The S poles (or N poles) within the displays 6 are attracted to the electromagnets 8 and the N poles (or S poles) within the displays 6 face the user when the display 6 side of the electromagnets 8 is controlled to be the N poles (or S poles) by the controller 3. Namely, the side faces of the black (or white) of the displays 6 are directed to the user.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display device for displaying characters and graphics to a user.

[0002]

2. Description of the Related Art Conventionally, as a display device used in, for example, computer equipment, a display device using liquid crystal and a display device using a cathode ray tube are known. A display device using a liquid crystal is based on the principle that a liquid crystal is arranged between two electrodes and the crystal structure of the liquid crystal is changed by energizing or de-energizing the electrodes to change light transmission or non-transmission. Characters and figures are displayed to the user by controlling the energization state of (dots).

A display device using a cathode ray tube has a structure including an electron gun for emitting an electron beam, an electrode for deflecting the electron beam, and a phosphor screen coated with a phosphor material.
Characters and figures are displayed to the user by controlling the electron beam that hits the phosphor screen.

[0004]

A display device using a liquid crystal has a small contrast of brightness and darkness, is difficult to be visually recognized, and has a problem of tired eyes when used for a long time. In addition, if the contrast is increased by using backup lighting such as a fluorescent lamp, the user always sees the light of the lighting device through the liquid crystal, which increases the burden on the eyes, and especially when used for a long time, I am tired.

In addition, a display device using a cathode ray tube has a problem that the user sees the light emitted from the phosphor screen, which places a heavy burden on the user's eyes. In addition, in a display device using a cathode ray tube, electromagnetic waves are given to the user from the cathode ray tube, which may cause a physical trouble due to the electromagnetic waves.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a display device excellent in texture with a small burden on the eyes of the user.

[0007]

In the display device of the present invention, a plurality of display bodies having at least two different colors on the surface and a part of the surfaces of the plurality of display bodies are visually recognized toward the user. A support board that supports the plurality of display bodies in a displaceable manner, and a plurality of displacements that are provided for each of the plurality of display bodies and that apply an attraction force to the display bodies to displace the display bodies. A technical means comprising means and a control device for controlling these plurality of displacement means was adopted. The colors of the present invention include not only chromatic colors such as red, yellow, green and blue, but also achromatic colors such as black, white and gray. Further, even in the same color system, if the lightness, the saturation, etc. are different, they are treated as different colors.

Further, the display device according to claim 1 can adopt the following modes. The attraction force applied to the plurality of display bodies by the plurality of displacement means is the attraction force by the magnetic force, and the plurality of display bodies are
It has the properties of a permanent magnet.

The attraction force applied to the plurality of display bodies by the plurality of displacement means is an attraction force due to static electricity, and the plurality of display bodies are provided so as to be polarized so that the applied static electricity is divided, and the plurality of display bodies are polarized. Each of them is provided with a static electricity imparting means for independently imparting static electricity.

[0010]

When the control device controls the plurality of displacement means to determine the suction state of the plurality of displacement means, the displacement state of each display means corresponding to each displacement means is determined. Each display means has at least two colors, and the surface facing the user is determined according to the displacement state. That is, the colors of the plurality of display bodies supported by the support board that are directed to the user are determined. Then, depending on the color change state of the plurality of display bodies supported by the support board, characters or figures are displayed to the user.

[0011]

As has been described above, the display means of the present invention allows the user to display characters and figures depending on the color change state of the plurality of display bodies supported by the support board. In this way, characters and figures are displayed to the user due to the color contrast and color change of the display,
For example, the user can see the characters and figures on the display device like the characters and figures drawn on the paper surface. Therefore, the texture is superior to the conventional display device, and the burden on the user's eyes is small.

[0012]

Next, a display device of the present invention will be described based on an embodiment shown in the drawings. [Structure of First Embodiment] FIGS. 1 to 5 show an embodiment of the present invention. FIG. 1 is a schematic view showing an example of a display device, FIG. 2 is a perspective view of a display body, and FIG. 3 is a display body. 4 is a schematic sectional view of FIG.
5 and 6 are explanatory views of the displacement operation of the display body.

The display device 1 according to the present embodiment is used for a computer device 2 such as a word processor or a personal computer. In the computer device 2 according to the present embodiment, an arithmetic and control unit for performing computer processing is displaced. It also serves as the control device 3 for controlling the means (described later). The computer device 2 includes, in addition to the control device 3, an external input unit 4 such as a keyboard and a display unit 5 for displaying characters and graphics to the user.

The display unit 5 includes a large number of display bodies 6 each having a shape that can be easily rotationally displaced, and a support board 7 that rotatably supports one surface of the plurality of display bodies 6 so that the user can face the user. It is composed of a large number of displacing means 8 for independently applying an attraction force and a repulsive force by magnetic force to the display bodies 6 to rotationally displace the respective display bodies 6.

The display body 6 is the one shown in FIG.
It has a columnar shape with a small gap between them and is easy to be rotationally displaced, and has two colors of white and black on the surface. This 2
Three different colors are provided in half on different sides of the cylindrical shape, and when one side of the color is directed to the user,
The other color side is invisible to the user. The size of the display body 6 depends on the display purpose to be used, and the computer device 2 as in the present embodiment.
When it is used for the display unit 5, the smaller size is preferable for the purpose of improving the display accuracy. In the present embodiment, the display body 6 has a diameter of 0.1 to 0.3 mm and a length in the column direction of 0.1 in order to obtain display performance equivalent to that of the existing liquid crystal display device.
It is provided in the range of 0.3 mm.

In addition, a permanent magnet 9 is built in the display body 6 in order to attract or repel the magnetic force generated by the displacement means 8. As shown in FIG. 3, the permanent magnet 9 is provided in the display body 6 in a state where, for example, the N pole is directed to the center of the black side surface and the S pole is directed to the center of the white side surface. (In this example, the north pole is directed to black,
An example in which the S pole is directed to white is shown, but it may be reversed.

In this embodiment, an example in which the permanent magnet 9 is built in the display body 6 is shown. However, the display body 6 itself is formed of the permanent magnet 9 and one of black or white is formed on the surface of the N pole side. It is also possible to form the display 6 by giving the above color and giving the surface on the S pole side the other color of black or white. Then, as an example of forming the display body 6 itself with the permanent magnet 9, it is preferable to adopt a method of applying a magnetic field to a magnetic body (for example, a cylindrical body made of iron) given two colors. By adopting this method,
The small display 6 can have the characteristics of the permanent magnet 9.

The support board 7 is provided so that a large number of display bodies 6 can be regularly arranged adjacent to each other in the vertical and horizontal directions. Specifically, on the user side of the support board 7, a non-magnetic resin or ceramic board in which a large number of grooves 10 that substantially match the surface shape of the display body 6 are formed adjacent to each other is provided. After arranging a large number of display bodies 6 in, a transparent board 11 (glass, acrylic resin, etc.) is provided on the surface (user side). In addition, between the support board 7 on which a large number of display bodies 6 are arranged and the transparent board 11,
In order to facilitate the rotational displacement of the display body 6, reduce the sound generated when the display body 6 is rotationally displaced, and prevent wear due to sliding of the display body 6, insulating oil is injected to provide the fine powder. May be given.

The displacing means 8 is an electromagnet that applies an attractive force and a repulsive force to the N pole or the S pole of the permanent magnet 9 contained in the display body 6, and a large number of displacement means 8 are provided for each of the many display bodies 6. . The displacement means 8 (electromagnet) of this embodiment is molded on the support board 7 made of resin. Each displacement means 8 (electromagnet) is composed of an iron core 12 and a coil 13 provided around the iron core 12, one of the iron cores 12 is partially exposed at the center of the groove 10 and the other of the iron core 12 is exposed. Is provided so as to face the side different from the user.

As described above, the control device 3 is provided in part in common with the arithmetic control device for performing various arithmetic processes of the computer equipment 2. Besides, a large number of displacement means 8
The polar directions generated by the (electromagnets) are set to the displacement means 8
It is controlled for each (electromagnet). Therefore, a pole determination unit 14 that determines the polar directions of a large number of displacement means 8 (electromagnets) according to the display information (texts, graphics, etc.) determined by the arithmetic control device that performs various arithmetic processing of the computer device 2, A driving unit 15 is provided to switch the energizing direction so that each displacement means 8 (electromagnet) becomes the pole determined by the pole determining unit 14.

The control of the respective displacement means 8 (electromagnets) by the control device 3 is carried out in substantially the same manner as the energization control of the existing liquid crystal display panel, and the liquid crystal display panel turns on the electrode of each dot of the panel ( Display) and OFF (non-display) are controlled to display the display information on the panel, whereas in the present embodiment,
The energization direction of each displacement means 8 (electromagnet) corresponding to the electrode of each dot is switched, and the pole of the displacement means 8 (electromagnet) on the display body 6 side is changed to N pole (black display) or S pole (white display). It is provided as follows. Further, the control device 3 may be provided so that each displacement means 8 (electromagnet) is always energized, but may be provided so that the displacement means 8 (electromagnet) is energized only when the display body 6 is rotationally displaced. good.

[Operation of First Embodiment] Next, the operation principle of the display device 1 will be described by using one of the many display bodies 6 as an example. When the white surface of the display body 6 is turned to the user, the control device 3 controls the pole of the displacement means 8 (electromagnet) provided corresponding to the display body 6 on the display body 6 side, as shown in FIG. The coil 13 is energized so that is the S pole.
Then, the pole of the iron core 12 on the display body 6 side becomes the S pole, and the N pole side of the permanent magnet 9 in the display body 6 becomes the displacement means 8 (electromagnet).
Is adsorbed on. If the display body 6 had the black surface facing the user before the suction, the display body 6 supported by the support board 7 is inverted and displaced, and the black side surface of the display body 6 is displaced. 8 (electromagnet) side, and the white side surface of the display body 6 faces the user side. When the display body 6 faces the user before the suction is performed, the display body 6 supported by the support board 7 does not turn over, and the white side surface of the display body 6 continues. Turns to the user side.

When the black surface of the display 6 is turned toward the user,
As shown in FIG. 5, the control device 3 energizes the coil 13 so that the displacement means 8 (electromagnet) provided corresponding to the display body 6 has the N pole on the display body 6 side. Then,
The pole on the display body 6 side of the iron core 12 becomes the N pole, and the S pole side of the permanent magnet 9 in the display body 6 is attracted to the displacement means 8 (electromagnet). If the display body 6 had a white surface facing the user before the suction, the display body 6 supported by the support board 7 is inverted and displaced, and the white side surface of the display body 6 is displaced. 8 (electromagnet) side, and the black side surface of the display body 6 faces the user side. If the display body 6 faces the user with a black surface before the suction is performed, the display body 6 supported by the support board 7 is not inverted and continues to be displayed.
The black side of is facing the user.

Then, the rotational displacement control of these display bodies 6 is performed by the control device 3 for each display body 6, and a sentence, a figure or the like is displayed to the user depending on the displacement state of the many display bodies 6. .

[Effects of the First Embodiment] In the present embodiment, as described above, the user is instructed to write a message depending on the white or black change state of the large number of display bodies 6 supported by the support board 7. And figures are displayed. As described above, since the character or figure is displayed to the user due to the color change of the display body 6 which is white or black, the user draws on the display device 1 like the character or figure drawn on the paper surface. You can see the written sentences and figures. For this reason, it is possible to reduce the burden on the eyes of the user and to improve the texture as compared with the conventional display device. Further, by this, even if the display device 1 is used for a long time, it is possible to prevent the user's eyes from being tired, so that it is particularly effective when used in an OA device.

Second Embodiment FIGS. 6 to 8 show a second embodiment. FIG. 6 is a schematic view showing an example of the display device 1, FIG. 7 is a schematic sectional view of the display body 6, and FIG. FIG. 6 is an explanatory diagram of a displacement operation of the display body 6.

[Structure of Second Embodiment] Similar to the first embodiment, the display device 1 of the present embodiment is also used for a computer device 2 such as a word processor or a personal computer, and an arithmetic and control unit for performing computer processing. However, it also serves as the control device 3 for controlling the displacement means 8. The computer device 2 includes, in addition to the control device 3, an external input unit 4 such as a keyboard and a display unit 5 for displaying characters and figures to the user.

The display unit 5 has a large number of display bodies 6 having a shape that can be easily rotationally displaced, a support board 7 that supports the large number of display bodies 6 so that the display bodies 6 can be rotationally displaced, and a magnetic force is provided to each of the display bodies 6 independently. And a large number of displacing means 8 for rotationally displacing each display body 6.

As shown in FIG. 7, the display body 6 has a cylindrical shape that can be easily rotationally displaced. The display body 6 of the present embodiment is provided so as to be polarized in two so that the applied static electricity is divided into two on one side surface and the other side surface of the cylinder.
Specifically, the display body 6 has a structure in which two materials that are easily charged (for example, a resin or a mixture of a resin and a material that is easily charged) are joined via a separator 20 that is difficult to be charged and is insulative. belongs to. One of them is a white material 21 and the other is a black material 22. As a result, the white and black 2
When provided with a color such that one side of the color faces the user, the other side of the color is hidden from the user.

In this embodiment, the display 6 is formed by joining two semi-cylindrical materials (white material 21 and black material 22) and the separator 20. Molded into a cylindrical shape, coated on one surface with a black and easily charged substance, and separated from the black substance on the other surface,
The display body 6 may be formed by applying a white material that is easily charged.

The size of the display 6 is the same as in the first embodiment.
The size according to the display purpose to be used, when used in the display unit 5 of the computer device 2 shown in this embodiment,
The smaller the size, the better for the purpose of improving the display accuracy. Further, in this embodiment, the display body 6 has a diameter of 0.1 to 0.3 m in order to obtain a display performance equivalent to that of the existing liquid crystal display device.
m, the length in the column direction is also provided in the range of 0.1 to 0.3 mm.

The support board 7 is made of an insulating material that is not easily charged, and is provided so that a large number of display bodies 6 can be regularly arranged adjacent to each other in the vertical and horizontal directions, as in the first embodiment. ing. Specifically, on the user side, a non-magnetic resin board which is not easily charged and has a large number of adjacent grooves 10 that substantially match the surface shape of the display body 6, and a large number of display bodies are provided in each groove 10. After arranging 6, each display 6 on the surface (user side)
A structure is provided in which the transparent board 11 having a large number of transparent electrodes 23 (see FIG. 8) provided corresponding to each is provided. In addition, between the support board 7 on which a large number of display bodies 6 are arranged and the transparent board 11, the rotational displacement of the display body 6 is facilitated, the sound generated when the rotational displacement of the display body 6 is reduced, and the display body 6 In order to prevent abrasion due to sliding, insulating oil or the like may be poured in and provided, or fine powder may be added. Further, the gap between the respective display bodies 6 is separated by a predetermined gap or more so that the charged electric charge is not transferred to the adjacent display body 6, or a material which is non-conductive and difficult to be charged (for example, a part of the support board 7). Is to be separated by.

A large number of transparent electrodes 23 provided on the transparent board 11 are static electricity applying means for independently applying static electricity to one material (white material 21 or black material 22) of each display body 6, By applying a positive voltage to the transparent electrode 23, positive static electricity is applied to the material (white material 21 or black material 22) of the display body 6 on the transparent electrode 23 side, and conversely a negative voltage is applied to the transparent electrode 23. By applying, negative static electricity is given to the material (white material 21 or black material 22) of the display body 6 on the transparent electrode 23 side.

The displacement means 8 of this embodiment has one material (white material 21 or black material 2) of the display body 6 to which positive or negative static electricity is applied by the transparent electrode 23.
By applying a voltage opposite to the applied sign to 2),
It is means (electrostatic attraction means) for attracting one material of the display body 6 to which positive or negative static electricity is applied.
Specifically, the drive electrode is provided at the bottom of the groove 10 so as to be in contact with the display body 6, and is molded on the support board 7 made of resin.

The control device 3 is provided in part in common with the arithmetic and control unit for performing various arithmetic processes of the computer device 2. In addition to the arithmetic and control unit for performing various arithmetic processes of the computer device 2, a large number of units are provided. An electrostatic sign control means 24 for controlling the sign of the voltage applied to each of the transparent electrodes 23, and a drive sign control means 25 for controlling the sign of the voltage applied to each of the multiple displacement means 8 (driving electrodes) are provided. .

Then, each transparent electrode 23 by the controller 3
And the control of each displacement means 8 (driving electrode) is performed by a large number of display bodies 6.
Of these, only the location where the color is inverted is designated, and the sign of the applied voltage is switched and given to the displacement means 8 (driving electrode) and the transparent electrode 23. The transparent electrode 23 is controlled so that the voltage having the same sign as the displacement means 8 (driving electrode) is applied to the transparent electrode 23 after the display body 6 is inverted. Further, the displacing means 8 (driving electrode) may be provided so as to be turned off after inverting the display body 6 to remove charged electrons.

[Operation of Second Embodiment] Next, the operation principle of the display device 1 will be described using one of the many display bodies 6 as an example. At the previous power-off time (when the use of the display device 1 is finished), all the display bodies 6 are stopped by being directed to one color (for example, black) (in this way, the control device 3 is provided). Exist). Then, when the display device 1 starts to operate, first, as shown in FIG. 8A, a positive voltage is applied to all the transparent electrodes 23. Then, the display body 6
Positive static electricity is applied to the black material 22 of.

Next, in the case of inverting the specific display body 6 to white, as shown in FIG. 8B, a negative voltage is applied to the displacement means 8 (driving electrode). Then, the black material 22 is attracted to the displacement means 8 (driving electrode) by the positive static electricity given to the black material 22 of the display body 6, and the display body 6 supported by the support board 7 is reversely displaced. ,
The black side surface of the display body 6 faces the displacement means 8 (driving electrode) side, and the white side surface of the display body 6 faces the user side.

When the white surface of the display body 6 is turned toward the user, a negative voltage is applied to the transparent electrode 23, as shown in FIG. Then, the white material 21 of the display body 6
Negative static electricity is applied to.

When the black surface of the display body 6 is turned to the user again, a positive voltage is applied to the displacement means 8 (driving electrode) as shown in FIG. 8D. Then, due to the negative static electricity applied to the white material 21 of the display body 6, the white material 21 is attracted to the displacement means 8 (driving electrode), and the display body 6 supported by the support board 7 is reversely displaced. The white side surface of the display body 6 faces the displacement means 8 (driving electrode), and the black side surface of the display body 6 faces the user side.

When the black surface of the display 6 is turned toward the user, a positive voltage is applied to the transparent electrode 23, as shown in FIG. Then, the white material 21 of the display body 6 is in a state where positive static electricity is applied. This state is
Repeat the above cycle when the black surface of the display body 6 was the same as the state in which the display body 6 was facing the user last time, and then the display body 6 is inverted to white or further inverted to black. It is carried out by.

Then, the rotational displacement control of each of the display bodies 6 is performed by the control device 3 for each of the display bodies 6, and a sentence, a figure or the like is displayed to the user depending on the displacement state of the many display bodies 6. .

[Effects of the Second Embodiment] Similar to the first embodiment, this embodiment is excellent in texture and can reduce the burden on the user's eyes to a small extent. Since the display body 6 is displaced, the displacement means 8 may be an electrode as compared with the electromagnetic coil 13 of the first embodiment. Therefore, it is very suitable for producing the display device 1 with high display accuracy, and has an effect that it can be produced at low cost.

[Modification] In the above-mentioned embodiment, the embodiment has been described by using two colors of white and black, but the display body may be formed by using other colors. Although the display body having two colors is shown as an example, the display body may be displacement-controlled by using three or more colors. Although the example in which the display body is provided in the shape of a cylinder has been shown, it may be provided in another shape such as a spherical shape or a triangular prism shape.

Although the example in which the display body is supported by being sandwiched between the support board and the transparent board is shown, the display body and the support board may be supported via a support shaft. As an example of displacing the display body by the attraction force due to static electricity, an example in which an electrode for giving static electricity to the display body is provided separately from the support board is shown, but an electrode for giving static electricity may be provided on the support board.

Although an example in which the arithmetic and control unit of the computer equipment and the control means of the display device are used in common is shown, they may be provided independently. The display device may be used as a display device other than the computer device. Numerical values, control methods, shapes, and the like shown in the embodiments are merely examples for description, and are not limited to the present embodiment, and can be variously applied.

[Brief description of drawings]

FIG. 1 is a schematic view showing an example of a display device (first embodiment).

FIG. 2 is a perspective view of a display body (first embodiment).

FIG. 3 is a schematic sectional view of a display body (first embodiment).

FIG. 4 is an explanatory diagram of a displacement operation of a display body (first embodiment).

FIG. 5 is an explanatory diagram of displacement operation of the display body (first embodiment).

FIG. 6 is a schematic view showing an example of a display device (second embodiment).

FIG. 7 is a schematic sectional view of a display body (second embodiment).

FIG. 8 is an explanatory diagram of displacement operation of a display body (second embodiment).

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 display device 3 control device 6 display body 7 support board 8 displacement means 9 permanent magnet 23 transparent electrode (static electricity applying means)

Claims (3)

[Claims] 1. (a) A plurality of display bodies having at least two different colors on the surface, and (b) a part of the surfaces of the plurality of display bodies are visibly supported toward a user. A support board that displaceably supports the plurality of display bodies, and (c) a plurality of displacement means that is provided for each of the plurality of display bodies and that applies a suction force to the display bodies to displace the display bodies. (D) A display device including a control device that controls the plurality of displacement means. 2. The attraction force applied to the plurality of display bodies by the plurality of displacement means is an attraction force by magnetic force, and the plurality of display bodies have a property of a permanent magnet. Display device. 3. The attraction force applied to the plurality of display bodies by the plurality of displacement means is an attraction force due to static electricity, and the plurality of display bodies are provided so as to be polarized so that the given static electricity is divided, and are polarized. The display device according to claim 1, further comprising a static electricity applying unit that independently applies static electricity to the plurality of display bodies.