JP3225117B2 - Variable color display module device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a variable color display module device for displaying character information, image information, and the like in a dot matrix system on a scoreboard of a stadium, a baseball stadium, or the like, a large wall television, an electric display panel, and the like.

[0002]

2. Description of the Related Art Japanese Patent Application Laid-Open No. 2-3 discloses an apparatus for displaying such character information and image information in a dot matrix system.
JP-A-09391 discloses a “display unit”. This "display unit" arranges two or more even-numbered cylinders containing a ring-shaped magnet in parallel,
Further, the yokes of the electromagnet are arranged at portions corresponding to the magnets of the cylinders at both ends. A pulse current is passed through the yoke to rotate the cylinder row 180 degrees. By this rotation, the display portion of two colors, which is obtained by dividing the cylinder into two in the vertical direction, is switched.

[0003]

However, in the above conventional example, it is difficult to reduce the size of the module, and furthermore, the number of parts is large and the cost is increased. In addition, the display color is only two colors, and the display surface is not flat but curved, so that it is difficult to see and backlight illumination cannot be performed. Furthermore, the movement of the mechanism when the display color is switched is large, and it takes time to switch. Therefore, effective characters and graphics cannot be displayed on a large wall television, an electric display panel, or the like.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems in the prior art. As a first object, the present invention has a small size, a simplified structure, a small movement of a mechanism when switching display colors, and a module. The present invention provides a color variable display module device that can provide a large effective display surface area, can easily produce a large screen, and can generate a large number of stable colors without consumables.

A second object of the present invention is to provide a color variable display module device in which the width of an opaque portion (black stripe) matches the width of one line of a color stripe so that the color of the color stripe can be accurately and clearly reproduced.

A third object is that the width of one line of the opaque portion and the transparent portion of the black stripe is wide, and the ratio of the opaque portion and the transparent portion is one to one.
Provided is a color variable display module device capable of mixing colors with a color filter regardless of the position of a black stripe and capable of displaying in more colors.

[0007]

In order to achieve this object, a color variable display module device according to the first aspect of the present invention, which corresponds to the first object, has three colors of three different colors that transmit light.
A color stripe filter in which stripes are repeated with one line as one pitch, and a black stripe in which three lines of opaque part, transparent part, and opaque part are arranged in one pitch while being overlapped with the color stripe filter are repeated. Placed and this opaque
Bright portion, a transparent portion, the light makes illumination and black stripes filters in each one line of the opaque portion 1 line and the same width of the color stripe filter, the light from one of the superimposed said color stripe filter and the black stripes filter was irradiating means, whether to the relative position stepwise or fast and continuously displaced to displace between the color stripe filter and the black stripe filter
And a displacement control means for selecting and displacing either one .

According to a second aspect of the present invention, in place of the black stripe filter of the first aspect, black stripes having three lines of a transparent portion, an opaque portion, and a transparent portion having one pitch are repeatedly arranged. In addition, each line of the transparent portion, the opaque portion, and the transparent portion includes a black stripe filter having the same width as one line of the color stripe filter.

According to a third aspect of the present invention, in place of the black stripe filter according to the first aspect, black stripes having two lines of an opaque portion and a transparent portion as one pitch are repeatedly arranged, and One line of the opaque portion and the transparent portion includes a black stripe filter having a width wider than one line of the color stripe filter.

[0010]

According to the first aspect of the present invention, the black stripe filter which is arranged so as to overlap the color stripe filter has black stripes in which three lines of an opaque portion, a transparent portion, and an opaque portion are arranged in a single pitch. And each of the opaque part, the transparent part, and the opaque part
Line is one line of the same width of the color stripe filter, and irradiated with light from this one, further displacement control means
There do fast and continuous stepwise displacing the relative positions of the color stripe filter and the black stripe filter
One of which is selectively displaced, the displacement is small, the structure is simplified, the movement of the mechanism when the display color is switched is small, and the effective display surface area of the module is large. In addition, a large screen can be easily manufactured, and a large number of stable colors can be formed without consumables.

According to a second aspect of the invention, a black stripe having three lines of a transparent portion, an opaque portion and a transparent portion as one pitch is repeatedly arranged, and each line of the transparent portion, the opaque portion and the transparent portion is a color stripe. Since a black stripe filter having the same width as one line of the filter is provided, the color of the color stripe can be changed by matching the width of the opaque portion (black stripe) with the width of one line of the color stripe. It can be accurately and clearly reproduced.

According to a third aspect of the present invention, black stripes having two lines of the opaque portion and the transparent portion as one pitch are repeatedly arranged, and one line of the opaque portion and the transparent portion is wider than one line of the color stripe filter. In addition to the function of claim 1, the width of one line of the opaque portion and the transparent portion of the black stripe is wide, and the ratio of the opaque portion to the transparent portion is 1: 1. In addition to making the production easier, the color can be mixed with the color filter regardless of the position of the black stripe, and the display can be performed in more colors.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of the color variable display module device of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a perspective view showing the structure of a color variable display module device according to the present invention. In FIG. 1, the color variable display module 6 has stripes of blue, green, and red (hereinafter, referred to as B, G, and R colors as necessary) as described in detail below. A color stripe filter 7 and a black (hereinafter, simply referred to as a BL color as necessary) are arranged in stripes and joined to the front surface of the color stripe filter 7 as described in detail below. Stripe filter 8
Are provided.

Further, there is provided a white light backlight source 9 for irradiating from the back surface of the color stripe filter 7 and the black stripe filter 8 using a white tungsten lamp and a small rectangular fluorescent lamp.

An angle 11 is fixed to the left end of the black stripe filter 8 in the figure, and a pin is attached to one end of the angle 11 and both ends move up and down about a central portion where the pin is inserted as a fulcrum. And a lever 12 that operates.

Further, a spring 13 for elastically lifting the other end of the lever 12, a motor 15, a potentiometer 16 for generating a potentiometer output voltage proportional to the rotational position of the motor 15, and a shaft attached to the motor 15. And the other end of the lever 12 is lifted by the elasticity of the spring 13 and comes into contact with the cam 17. Further, there is provided an exterior body 18 for accommodating the entirety.

The exterior body 18 is thin and lightweight. Further, it can be combined with the exterior body (18) of the next color variable display module (6) arranged next, and is provided with irregularities so as not to cause an assembly error. The color stripe filter 7 and the black stripe filter 8 each have a display surface with a side of about 30 mm.

FIG. 2 is a perspective view showing the external structure of an electronic display panel for displaying character information using the color variable display module device 6 of FIG. 1 as a dod matrix. In FIG.
The light-emitting display panel includes a frame member 19, a color variable display module 6 of FIG. 1 which is disposed in a large number of rows and columns in the frame member 19, and displays desired characters, and the English character "P" in FIG. ,
And a controller 20 for setting a display color.

Next, the color stripe filter 7 and the black stripe filter 8 shown in FIG. 1 will be described.

FIGS. 3A, 3B and 3C are schematic diagrams showing the detailed configuration of the color stripe filter 7 and the black stripe filter 8. FIG. 3 (a), (b),
In (c), the color stripe filter 7 includes one line of blue, green, and red (hereinafter, referred to as B, G, and R colors as necessary) having a member width of 0.1 to 1 mm in the vertical direction. It is a repeated color stripe. This B
As for the color, G color and R color, the member is irradiated with white light from the white light backlight light source 9 in FIG. 1 and the emitted light is transmitted to emit B, G and R colors. The color stripe filter 7 is formed by printing color members of B, G, and R colors that are transmitted on a transparent member such as a polyester film or an acetate film.

In the black stripe filter 8, the opaque portion (black stripe) is arranged with a width of two colors of the color stripe filter 7, and then the width of the transparent portion is arranged with a width of one color of the color stripe filter 7. As such, an opaque portion (black stripe) portion and a transparent portion are repeatedly arranged.

When the color stripe filter 7 and the black stripe filter 8 are in the positional relationship shown in FIG. 3A and illuminated by the white light backlight source 9, the transmitted light becomes only B color and G color and R color. The light is not transmitted through the opaque portion (black stripe) of the black stripe filter 8 and the transmitted light color is lost. That is, G
The color and R colors are black. Therefore, it is visually observed that the front surface of the color variable display module 6 shown in FIG.

When the color stripe filter 7 and the black stripe filter 8 have the positional relationship shown in FIG. 3B, the transmitted light color becomes G and the R and B colors are opaque portions (black stripes) of the black stripe filter 8. As a result, the light beam is not transmitted, and the transmitted light color is lost. That is,
The R and B portions are black. Therefore, it is visually observed that the front surface of the color variable display module 6 shown in FIG.

When the color stripe filter 7 and the black stripe filter 8 have the positional relationship shown in FIG. 3C, the transmitted light color is R, and the B and G colors are opaque portions (black stripes) of the black stripe filter 8. No light is transmitted. That is, there is no transmitted light and B
The color and G portions are black. Therefore, it is visually observed that the front surface of the color variable display module 6 shown in FIG. Therefore, the display colors of the color variable display module 6 shown in FIG.
As shown in (c), there are three colors of B, G, and R.

FIGS. 4A, 4B, and 4C are schematic diagrams showing another example of the configuration of the color stripe filter 7 and the black stripe filter 8. FIG. 4 (a), (b),
In FIG. 3C, the color stripe filter 7 corresponds to FIG.
It has the same configuration as the examples shown in (a), (b) and (c).
In the black stripe filter 8a, the opaque portion (black stripe) is a color stripe filter 7a.
The opaque portion (black stripe) and the transparent portion are repeatedly arranged so that the width of the transparent portion is the same as the width of two colors of the color stripe filter 7.

When the color stripe filter 7 and the black stripe filter 8a have the positional relationship shown in FIG. 4A and are irradiated by the white light backlight source 9, the transmitted light becomes B and G colors and cyan (Cyan). Color (hereinafter, referred to as C color as necessary). For the R color, the light does not pass through the opaque portion (black stripe) of the black stripe filter 8a, and the transmitted light color disappears. That is, the R color portion is black. Therefore, it is visually observed that the front surface of the color variable display module 6 shown in FIG.

When the color stripe filter 7 and the black stripe filter 8a have the positional relationship shown in FIG. 4B, the transmitted light colors become G and R colors, and Magenta is used.
Color (hereinafter, referred to as M color if necessary). For the B color, no light passes through the opaque portion (black stripe) of the black stripe filter 8a, and the transmitted light disappears. That is, the portion of the B color is black. Therefore, it is visually observed that the front surface of the color variable display module 6 shown in FIG.

When the color stripe filter 7 and the black stripe filter 8a have the positional relationship shown in FIG. 4C, the transmitted light colors are B and R colors, and yellow (Y) Described). For the G color, no light passes through the opaque portion (black stripe) of the black stripe filter 8a, and the transmitted light disappears. That is, the portion of G color is black. Therefore, it is visually observed that the front surface of the color variable display module 6 shown in FIG.

FIGS. 5 (a), (b), (c), (d),
(F) is a schematic diagram showing still another configuration example of the color stripe filter 7 and the black stripe filter 8. 5A to 5F, the color stripe filter 7 has the same configuration as the example shown in FIGS. 3A, 3B, and 3C. In the black stripe filter 8b, the width of the opaque portion (black stripe) and the width of the transparent portion are the same. An opaque portion (black stripe) and a transparent portion are repeatedly arranged with a width corresponding to 1.5 colors of the color stripe filter 7.

When the color stripe filter 7 and the black stripe filter 8b have the positional relationship shown in FIG. 5A and are illuminated by the white light backlight source 9, the transmitted light becomes B color and 1 / 2G color. Is a B color with a G color (hereinafter referred to as a GB color as necessary).
R color and 1 / 2G color are black stripe filters 8b
The light beam does not pass through the opaque portion (black stripe), and the transmitted light color disappears. That is, the portions of the R color and the 1 / 2G color are black. Therefore, it is visually observed that the front surface of the color variable display module 6 shown in FIG.

When the color stripe filter 7 and the black stripe filter 8b have the positional relationship shown in FIG. 5B, the transmitted light color becomes G color, 1 / 2B color, and G color becomes B color.
Color (hereinafter, referred to as BG color as necessary). R
For the color and the 1 / 2B color, no light passes through the opaque portion (black stripe) of the black stripe filter 8b, and the transmitted light disappears. That is, the portions of the R color and the 1 / 2B color are black.

Therefore, the front surface of the color variable display module 6 shown in FIG.

In the case where the color stripe filter 7 and the black stripe filter 8b have the positional relationship shown in FIG. 5C, the transmitted light colors are G and 1 / 2R, and the R color is a G color (hereinafter referred to as necessary). RG color).
B color and 1 / 2R color are black stripe filters 8b
No light is transmitted through the opaque portion (black stripe), and the transmitted light disappears. That is, the portions of the B color and the 1 / 2R color are black. Therefore, it is visually observed that the front surface of the color variable display module 6 shown in FIG.

In the case where the color stripe filter 7 and the black stripe filter 8b have the positional relationship shown in FIG. 5D, the transmitted light colors are R, 1 / 2G, and R light with G color (hereinafter, if necessary). Described as GR color).
B color and 1 / 2G color are black stripe filters 8b
No light is transmitted through the opaque portion (black stripe), and the transmitted light disappears. That is, the portions of the B color and the 1 / 2G color are black. Therefore, it is visually observed that the front surface of the color variable display module 6 shown in FIG.

When the color stripe filter 7 and the black stripe filter 8b have the positional relationship shown in FIG. 5 (e), the transmitted light color is R color, 1 / 2B color, and R color with B color (hereinafter referred to as necessary). Described as BR color).
G color and 1 / 2B color are black stripe filters 8b
No light is transmitted through the opaque portion (black stripe), and the transmitted light disappears. That is, the G color and the 1 / 2B color are black. Therefore, it is visually observed that the front surface of the color variable display module 6 shown in FIG.

When the color stripe filter 7 and the black stripe filter 8b have the positional relationship shown in FIG. 5F, the transmitted light color is B color, 1 / 2R color, and B color with R color (hereinafter referred to as necessary). RB color).
G color and 1 / 2R color are black stripe filters 8b
No light is transmitted through the opaque portion (black stripe), and the transmitted light disappears. That is, the G color and the 1 / 2R color are black. Therefore, it is visually observed that the front surface of the color variable display module 6 shown in FIG.

FIG. 6 is a diagram collectively showing the relationship between the color stripe filter 7 and the black stripe filters 8, 8a, 8b shown in FIGS. 3, 4, and 5.

In any of the above cases, one pitch of the opaque portion (black stripe) stripes in the black stripe filters 8, 8a and 8b is exactly the same as the B, G, and R color stripes in the color stripe filter 7. The pitch of the opaque portion (black stripe) stripe must be equal to the pitch of the color stripe filter 7 and the black stripe filters 8, 8a, and 8b shown in FIGS. The dimensional relationship is not limited.

Next, the controller 20 shown in FIG. 2 will be described. FIG. 7 is a block diagram showing an electrical configuration of the controller 20 shown in FIG. In FIG. 7, a controller 20 performs a main control when displaying character information as a dod matrix on an electric display panel, and a microcomputer 21 supplied with R, G, and B color signals from a host computer (not shown); It has a color memory 22 for storing R, G and B color signals from the host computer, and a color display memory 23 for storing characters and color information displayed by the color variable display module 6.

Further, the controller 20 includes a motor 15 in the color variable display module 6 in FIG.
The motor drive circuits 24 and 25 for supplying the motor drive voltages m and n to rotate the light source to produce a desired color, and the white light backlight source 9 in FIG. Drive circuit 2 for driving the LCD
8, 29 are provided.

FIG. 8 is a circuit diagram showing an electrical configuration of the color variable display module 6 shown in FIG. 8, the motor 15 in FIG. 1 is connected to the motor drive circuits 24 and 25 through a protection diode 41 for preventing reverse-phase rotation. The potentiometer 16 is connected to the motor 15 through a resistor 42. A Zener diode 43 for stabilizing an applied voltage is connected to the potentiometer 16 in parallel, and a diode 44 is connected between the output terminal and the AD input terminal 21a of the microcomputer 21 in FIG.
Is connected.

From the diode 44, the controller 20
Is supplied with a potentiometer output voltage indicating the rotational position of the motor 15. The motor 15 is a DC motor, but may be a step motor.

FIG. 9 is a circuit diagram showing the electrical configuration of the white light backlight source 9 in FIG. In FIG. 9, the white light backlight source 9 is connected to one end of a solenoid coil in a self-holding relay 53 through a backlight driving circuit 28 and protection diodes 51 and 52 serving as set (S) and reset (R) terminals. Have been.

Further, one end of the backlight light source 54 is connected to the contact of the self-holding relay 53, and the other end of the backlight light source 54 and the common (C) end of the solenoid coil in the self-holding relay 53. Is connected to the backlight drive circuit 29.

The contact is made by applying the motor drive voltage m to the solenoid coil at the set (S) end of the self-holding relay 53, and the contact breaks when the motor drive voltage is applied to the reset (R) end.

Therefore, when a motor drive voltage is applied to the set (S) end, the backlight light source 54 is turned on, and color is displayed by color development. When the motor drive voltage is applied to the reset (R) end, the contact breaks and the backlight light source 54 is turned off, and the display becomes black.

FIG. 10 shows a motor drive circuit 24, 2 in which n color variable display modules 6 shown in FIG.
FIG. 5 is a circuit diagram showing a state connected to No. 5; In FIG. 10, all the motors 15 in the “n × m” color variable display modules 6 are connected to the motor drive circuits 24 and 25, and the output terminals of the potentiometers 16 are connected in parallel. The potentiometer output voltage is supplied to the AD input terminal 21a of the microcomputer 21.

[0049] Figure 11 is a circuit diagram showing a connection state between the white light backlight source 9 and the backlight drive circuit 28, 29 shown in FIG. In FIG. 11, a backlight power source (not shown) is connected to plus (+) and minus (-) ends of the white light backlight source 9.

Further, the backlight drive circuit 28 is connected to the set (S) and reset (R) terminals, and the backlight drive circuit 29 is connected to the common (C) terminal.

In such a configuration, when the electro-optical display panel of FIG. 2 is configured, a total of “n × m” color variable display modules 6 (n in length and m in width) are required. Therefore, the motor drive circuits 24 and 25 for driving all the “n × m” color variable display modules 6 are composed of a total of “m + n” of n vertical and m horizontal. Further, there are provided backlight driving circuits 28 and 29 configured to drive “n × m” white light backlight sources 9 of n vertical and m horizontal.

Next, the operation in these configurations will be described. First, the operation of the color variable display module 6 alone will be described. As described with reference to FIG. 9, the backlight emission source 5 in the white light backlight source 9 in FIG.
When 4 is turned off, the front of the color variable display module 6 is displayed in black. Black stripe filter 8 (8a, 8
When b) is moved up and down at a high speed in a state of being superimposed on the color stripe filter 7 in the directions g and h in FIG. 1, the light rays are additively mixed as an afterimage, and the front surface of the color variable display module 6 is displayed in white.

Therefore, in the configuration using the color stripe filter 7 and the black stripe filter 8 shown in FIGS. 3A to 3C, the front surface of the color variable display module 6 shown in FIG. , R, white, and black, that is, five colors.

The color stripe filter 7 and the black stripe filter 8a shown in FIGS.
In the configuration using the above, the front surface of the color variable display module 6 shown in FIG. 2 can be displayed in five colors of C, M, Y, white and black. As described in more detail below, FIG.
In the configuration using the color stripe filter 7 and the black stripe filter 8b shown in (a) to (f), the front surface of the color variable display module 6 shown in FIG.
G color, RG color, GR color, BR color, RB color, white, black,
That is, it can be displayed in eight colors.

As described above, the configuration using the color stripe filter 7 and the black stripe filter 8 shown in FIGS. 3A to 3C, or the color stripe filter 7 and the black stripe filter shown in FIGS. The structure using the stripe filter 8a or the structure using the color stripe filter 7 and the black stripe filter 8b shown in FIGS. 5A to 5F is selected to produce the electroluminescent display panel shown in FIG. become.

In FIG. 1, in the case of the configuration using the color stripe filter 7 and the black stripe filter 8 shown in FIGS. 3A to 3C, the cam 17 rotates with the rotation of the motor 15 and the cam 17 rotates. The lever 12 in contact with the spring 13 swings in the illustrated directions g and h.
That is, the black stripe filter 8 (8a, 8
b) is moved up and down while being superimposed on the color stripe filter 7.

In FIG. 1, the cam 17 is deformed so that three positions can be obtained by one rotation. At this time, the amplitude that fluctuates due to the swing in the directions g and h is slightly more than one line in one pitch of the R, G, and B colors of the color stripe filter 7.

The potentiometer 16 generates a potentiometer output voltage proportional to the rotational position of the motor 15 and supplies it to the AD input terminal 21a of the microcomputer 21. The microcomputer 21 recognizes the rotation angle of the motor 15, that is, the position of the vertical movement of the black stripe filter 8 (8a, 8b) based on the value of the potentiometer output voltage.

FIG. 12 is an explanatory diagram showing the relationship between the potentiometer output voltage, the rotation angle of the motor 15, and the display color on the color variable display module 6.

In FIG. 12, the rotation angle 12 of the motor 15 is
A microcomputer 2 to which potentiometer output voltages V ₁ , V ₂ , V _{3 of} 0 °, 240 °, 360 ° are supplied
In step 1, the position of the vertical movement of the black stripe filter 8 (8a, 8b), that is, the B color, the G color, and the R color, which are the colors of the color variable display module 6, are recognized.

As described above, the microcomputer 21 determines the rotational position of the motor 15 from the value of the potentiometer output voltage, that is, the color stripe filter 7 and the black stripe filter as described with reference to FIGS. 3 (a), 3 (b) and 3 (c). 8, the color development on the front surface of the color variable display module 6 is determined, that is, B color, G color, R color,
Black and white colors can be identified.

As described with reference to FIG. 9, the backlight source 5 in the white light source 9 in FIG.
When 4 is turned off, the front of the color variable display module 6 is displayed in black.

3 (a), 3 (b) and 3 (c) are repeated at high speed and continuously, that is, directions g and h in FIG.
When the black stripe filter 8 is moved up and down at a high speed with the black stripe filter 8 superimposed on the color stripe filter 7,
The color, G, and R light rays are additively mixed as an afterimage, and the front surface of the color variable display module 6 is displayed in white.

The configuration using the color stripe filter 7 and the black stripe filter 8a shown in FIGS. 4A to 4C is the same as the configuration using the color stripe filter 7 and the black stripe filter 8 shown in FIGS. 3A to 3C. 2, the front surface of the color-variable display module 6 shown in FIG. 2 can be displayed in five colors of C, M, Y, white, and black.

In the configuration using the color stripe filter 7 and the black stripe filter 8b shown in FIGS. 5A to 5F, the GB, BG, and RG colors are provided on the front surface of the color variable display module 6 shown in FIG. Color, GR color, BR color, RB
The display can be made in eight colors of color, white and black.

In this case, the rotation angle of the motor 15 is
1 is similar to the configuration using the color stripe filter 7 and the black stripe filter 8 shown in (a) to (c).
20 °, 240 °, and 360 ° respectively, GB color, RG
Color and BR colors can be displayed. BG color at 60 °, 18
The GR color can be displayed at 0 ° and the RB color can be displayed at 300 °.

Further, when the backlight light source 54 (FIG. 9) in the white light backlight source 9 in FIG. 1 is turned off, the front of the color variable display module 6 displays black. When the black stripe filter 8 is moved up and down in the directions g and h in FIG. 1 with the black stripe filter 8 superimposed on the color stripe filter 7, the light rays are additively mixed as an afterimage, and the front surface of the color variable display module 6 is displayed in white.

Next, the color variable display module 6 which operates alone as described above is arranged (dod matrix) in a total of "n × m" units of n columns and m columns to form an electric light display panel.
A case where desired character information is displayed will be described. In this case, a total of “n × m” color variable display modules 6 correspond to FIG.
(A) to (c) or 5 of the configuration shown in FIGS.
The color display or the eight-color display shown in FIGS. 5A to 5F is selected and configured. In FIG. 2, the five color variable display modules 6 are turned on to display the character information of the English character "P".

In the controller 20, the R, G, and B signals transmitted from the host computer (not shown) are supplied to the microcomputer 21. Then, the microcomputer 21 writes the color information for each of the “n × m” color variable display modules (6) into the color memory 22. This color information and the currently displayed color display memory 23
And outputs the motor drive voltage to the motor 15 of the color variable display module (6) having a different display color through the motor drive circuit 24. Thus, the sum "n
After setting the desired color for the “xm” motors (15), the color information in the color memory 22 is transferred to the color display memory 23.

The motor drive circuit 24 supplies a motor drive voltage from the microcomputer 21 to a total of “n × m” selected motors (15) arranged at the intersections of the selected horizontal and vertical lines, and supplies the motor drive voltage to the motor (15). (15) is rotated.

When the motor (15) rotates, the potentiometer 16 rotates simultaneously. A motor drive voltage is applied to a plus terminal of the potentiometer 16. Therefore, voltage is applied only to the potentiometer (16) of the motor (15) to be rotated, and a potentiometer output voltage corresponding to the rotation angle of the motor (15) is generated. This voltage is supplied to the AD input terminal 21a of the microcomputer 21.
The analog voltage is converted into a digital value to identify the rotation angle of the motor 15.

Then, the microcomputer 21 controls the output of the motor drive voltage through the motor drive circuit 24, identifies the potentiometer output voltage input to the AD input terminal 21a, and obtains a desired rotational position, that is,
The motor drive voltage is stopped at the coloring position as the color variable display module 6, and a closed-loop control is performed to display a color that matches the color signal sent from the host computer.

Next, the case of displaying black color will be described.
The microcomputer 21 stores the R, G, and B color signals transmitted from the host computer in the color memory 22, and identifies the black color display after the storage. If there is a black color display, the backlight drive circuits 28 and 29 shown in FIG. 7 apply a motor drive voltage to the reset (R) end as described in FIG. 54 is turned off.

As described above, a desired character is displayed by individually changing the color development of a total of “n × m” color variable display modules (6). Therefore, it takes a relatively long time to change the color development of all the color variable display modules (6).

As a remedy, the color display of the horizontal one-line color variable display module (6) is changed at once, and
It is preferable to change the color display of the color variable display module (6) of two horizontal lines at a time. In this case, the potentiometer (1
The output terminal of 6) is connected to the AD input terminal 21a of the microcomputer 21 by connecting the vertical n units as one group per line. Therefore, if m motors are input to the AD input terminal 21a and the motor drive voltages of the m horizontal motors are controlled at individual timings, the motor (15) can be rotated at a desired rotational position.
Can be stopped.

As a result, the color development of all the color variable display modules (6) can be changed in 1 / n time compared to the case described above, and the color display can be changed at a high speed.

The vertical movement of the black stripe filter 8 (8a, 8b) is accelerated by the high-speed rotation of the motor (15). That is, white display is performed as the color variable display module 6 by additive color mixing with the color stripe filter 7. You can do it. When performing this white color display, the motor drive voltage from the motor drive circuit 24 is set to 3
The motor (15) is supplied to the motor (15) after being raised by about 5 times, and the desired motor (15) is rotated at a high speed. As a driving method in this case, it is preferable to apply the high-speed color display described above.

Then, a high voltage is supplied to one horizontal line for a certain period of time, and a voltage is applied to the motor (15) of the next two horizontal lines. As described above, the voltage is sequentially applied from the uppermost line. In this case, the motor (15) continues to rotate due to inertia. Then, a high voltage is again applied to the next horizontal one-line motor (15) before the rotation of the horizontal one-line motor (15) to which the motor drive voltage is applied is reduced. In this case, the AD input terminal 21 of the microcomputer 21
Do not identify the potentiometer output voltage to a. That is, the motor 15 is only rotating at high speed.

In this embodiment, the black stripe filter 8 (8a, 8b) is moved up and down, but the black stripe filter 8 (8a, 8b) is fixed and the color stripe filter 7 is moved up and down. The same operation and effect can be obtained. Thus, the motor 15
Only by finely controlling the rotation angle of, it is possible to produce an extremely large number of expression colors. In this case, a very large expression color can be generated with a simple structure.

[0080]

As is apparent from the above description, according to the first aspect, in the black stripe filter arranged to overlap the color stripe filter, three lines of the opaque portion, the transparent portion, and the opaque portion have one pitch. Black stripes are repeatedly arranged, and this opaque part, transparent
Light portion, a one-line the same width of each one line color stripe filter of the opaque portion, light is irradiated from the other hand, further displacement control means stepwise relative positions of the color stripe filter and the black stripe filter Strange
Either position or fast and continuous displacement
In order to displace , the size is small and the structure is simplified, the movement of the mechanism when switching the display color is small, the effective display surface area of the module is large, and a large screen can be easily manufactured. There is an effect that a large number of stable colors can be formed without consumables. According to claim 2, black stripes having three lines of a transparent portion, an opaque portion, and a transparent portion as one pitch are repeatedly arranged, and
Since each line of the transparent portion, the opaque portion, and the transparent portion has a black stripe filter having the same width as one line of the color stripe filter, the width of the opaque portion (black stripe) is reduced in addition to the effect of claim 1. This has the effect that the color of the color stripe can be accurately and clearly reproduced in accordance with the width of one line of the color stripe. According to a third aspect of the present invention, a black stripe in which two lines of an opaque portion and a transparent portion are arranged as one pitch is repeatedly arranged, and one line of the opaque portion and the transparent portion is repeated with a width wider than one line of the color stripe filter. Since a stripe filter is provided, in addition to the function of claim 1,
The width of one line of the opaque part and the transparent part of the black stripe is wide, and the ratio of the opaque part and the transparent part is 1: 1. There is an effect that colors can be mixed with the filter, and display can be performed in more colors.

[Brief description of the drawings]

FIG. 1 is a perspective view illustrating a configuration of an embodiment of a color variable display module device according to the present invention.

FIG. 2 is a perspective view showing an external configuration of an electronic display panel in which the color variable display module device shown in FIG. 1 is arranged as a dod matrix.

FIGS. 3A to 3C are schematic diagrams illustrating a detailed configuration of a color stripe filter and a black stripe filter.

FIGS. 4A to 4C are schematic diagrams illustrating another configuration example of a color stripe filter and a black stripe filter.

FIGS. 5A to 5F are schematic diagrams showing still another configuration example of the color stripe filter and the black stripe filter 8. FIGS.

FIG. 6 is a diagram showing a relationship between the color stripe filter and the black stripe filter shown in FIGS. 3 to 5;

FIG. 7 is a block diagram illustrating an electrical configuration of a controller illustrated in FIG. 2;

FIG. 8 is a circuit diagram showing an electrical configuration of the color variable display module shown in FIG.

FIG. 9 is a circuit diagram showing an electrical configuration of a white light backlight light source in FIG.

FIG. 10 is a view showing n color variable display modules shown in FIG.
FIG. 3 is a circuit diagram showing a state where m horizontal members are arranged and connected to a motor drive circuit.

11 is a circuit diagram showing a connection state between a white light backlight light source and a backlight drive circuit shown in FIG . 9 ;

FIG. 12 is an explanatory diagram showing a relationship between a potentiometer output voltage, a motor rotation angle, and a display color in the color variable display module shown in FIG. 1;

[Explanation of symbols]

 6 Color variable display module 7 Color stripe filter 8, 8a, 8b Black stripe filter 9 White light backlight source 11 Angle 12 Lever 13 Spring 15 Motor 16 Potentiometer 17 Cam 18 Exterior body 19 Frame member 20 Controller 21 Microcomputer 21a AD input terminal Reference Signs List 22 color memory 23 color display memory 24, 25 motor drive circuit 28, 29 backlight drive circuit 41 protection diode 42 resistor 43 zener diode 44 diode 51, 52 protection diode 53 self-holding relay 54 backlight light source

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-2-40620 (JP, A) JP-A-4-188186 (JP, A) Japanese Utility Model Application No. 51-107179 (JP, U) Japanese Utility Model Application No. Showa 56- 93776 (JP, U) Japanese Utility Model Showa 61-49382 (JP, U) (58) Field surveyed (Int. Cl. ⁷ , DB name) G09F 9/37

Claims (3)

(57) [Claims] 1. A color stripe filter in which stripes which repeat three lines of three different colors transmitting light with one pitch are arranged, and an opaque portion and a transparent portion are arranged so as to overlap with the color stripe filter. , black stripes was 1 pitch three lines of the opaque portion is arranged repeatedly, and the opaque portion, Toru
Bright portion, irradiated and black stripe filter of one line and the same width, the light from one of the superimposed said color stripe filter and the black stripes filters were each 1 line the color stripe filter of the opaque portion
A light irradiation means for said color stripe filter and the upper
The relative position of the serial black stripe filter stages
Displacement or fast and continuous displacement
A variable color display module device comprising: displacement control means for selecting and displacing one . 2. The method according to claim 1, wherein three lines of a transparent portion, an opaque portion and a transparent portion are replaced by one line.
The black stripe having a pitch is repeatedly arranged, and one line of each of the transparent portion, the opaque portion, and the transparent portion includes a black stripe filter having the same width as one line of the color stripe filter. 2. The color variable display module device according to 1. 3. A black stripe having two lines of an opaque portion and a transparent portion as one pitch is repeatedly arranged in place of the black stripe filter according to claim 1, and
2. The color variable display module device according to claim 1, wherein one line of the opaque portion and the transparent portion includes a black stripe filter having a width wider than one line of the color stripe filter.