JPH01235992A - Flat panel color display device - Google Patents

Abstract

PURPOSE:To scarcely exert a degree of influence on a light emitting color even if one filament in one picture element is fused by providing plural filaments against one piece of monochromatic picture element. CONSTITUTION:Eight pieces of filaments 1 are placed like a lattice symmetrically to the upper and lower parts and to the right and left centering around an intersection of conductors 2, 3 in the X direction and the Y direction, and as for each filament 1, one end thereof is connected to one of the conductors 2, 3 in the X direction or the Y direction, and also, each other end is connected. Subsequently, a unit in which eight pieces of filaments 1 centering around the intersection have been provided as one unit is provided continuously, and also, color filters 4, 5 and 6 of three colors R, G and B are placed so as to face each of the units being adjacent to each other. Accordingly, in accordance with a single color filter, eight pieces of filaments 1 are placed, and they are connected mutually. In such a way, even if one piece of them is fused, light can be emitted by other filament 1.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a flat panel color display device that uses a filament as a light emitting source and has three RGB color filters arranged in correspondence with the filament. .

[Traditional technique! ] An example of this conventional flat panel color display device is shown in FIG. In the figure, 1 and 2 are conducting wires in the X direction and a plurality of conductive wires in the X direction, 3 is a filament, and 4, 5, and 6 are R, G, and B color filters, respectively.

A filament 3 is connected between each intersection point of the conducting wires 1 and 2 in the X direction, and R, G, and B color filters 4 and 5.6 are arranged corresponding to these adjacent groups of filaments 3, respectively. One color pixel 7 is formed. Although only one color pixel 7 is shown in the drawing, this pixel is formed continuously.

[Problems to be Solved by the Invention] As described above, in the conventional flat panel color display device, one filament is provided for each color filter, and the filament is generally easy to melt and break. Therefore, if the filament breaks at one location, the monochromatic pixel stops emitting light and has a problem in that it is no longer able to emit light in an accurate color.

The present invention solves the above problems, and by providing a plurality of filaments for one single color pixel, -
An object of the present invention is to provide a reliable flat panel color display device in which even if one filament in a pixel is fused, the effect on the emitted light color is small and is reliable.

Means for Solving the Problem] The present invention includes a filament as a light emitting source, a conductor wire in the X direction and the X direction for passing current through the filament, and means for shielding the filament from the atmosphere. In a flat panel color display device, eight filaments are arranged in a lattice pattern vertically and horizontally symmetrically around the intersection of the selected X-direction and X-direction conductors,
One end of each filament is connected to a conductor in either the X direction or the , and three color fills of R, G, and B are arranged facing each of these mutually adjacent units.

[Function] With this configuration, eight filaments are arranged corresponding to a single color filter, and these are connected to each other, so even if one of them is fused, the other filaments cannot be replaced. This makes it possible to emit light.

Embodiment FIG. 1 shows a basic configuration according to an embodiment of the present invention. In the same figure, 1 and 2 are conductors in the X direction and X direction, respectively, and 3
is the filament as a light source, 4.5.6 is the color 1
R and G that make up a pixel.

B is a three-color color filter. The filament 3 is located at the intersection of one X-direction and the X-direction conductor 1.2.
Now, for example, to explain the intersection point of conductors xn and Yn, eight points (F+~
fa) are arranged, and one end of each filament is connected to a conductor Xn, Yn in the X direction or in the X direction, and the other ends of adjacent filaments are connected to each other along with φ.

A unit including these eight filaments is continuously provided around the intersection of adjacent X-direction conductive wires.

A color filter 4.59 of three colors R, G, and B is provided facing at least one of the above-mentioned units centered at every other intersection point in the horizontal or vertical direction. ．． 6 is 4
, these are arranged as one unit and regularly and consecutively without overlapping each other.

In other words, in FIG. 1, three color filters 4.
Although only one pixel constructed by arranging 5.6 is shown, multiple pixels of this are arranged in a row in the horizontal direction, and multiple pixels equivalent to this horizontal arrangement are arranged in parallel in the vertical direction. There is. In this example, if the length of the filaments f1 to f8 is p, the length of one side of the unit is 2Q, and the color filter 4.5.6 is a square with a side length of 2CTu. , whose center is the same as the square made up of filaments f1 to f8,
The squares are arranged at an angle of 450 mm, and the apexes of adjacent squares are in contact with each other in the arrangement direction of the three color filters constituting one pixel. With this arrangement, a unit consisting of eight filaments f1 to f8 corresponds to the negative color filter.

The filament 3 and the conducting wire 1.2 are knitted together using a fiber plain weaving method, and connections are made between the filaments 3.3 in the X direction and the X direction, and between the filament 3 and the conducting wire 1.2@. Here, the X direction and the conductor 1 in the X direction
．． No. 2 is coated with a coating at an appropriate interval so that the two do not come into contact with each other and are in contact with the filament 3.

In the above configuration, if a potential difference is applied between the conductors Xn and Yn, the most current flows through the seven filaments f and f8 among all the filaments due to the electrical resistance of the circuit. Shining brightest. In this way, the color filter 5 corresponding to this color develops.

- Here, even if the filament f1 is fused, the remaining six filaments f3 to f8, excluding the filament f2 in series with it, can continue to shine. According to simulation results, the effect of melting down one filament is only a reduction in brightness by 3/4.

Next, when emitting various colors, first the coordinate Yn in the Y direction
is selected, and the X direction coordinates Xn-2°X n ,
By selecting one or more n+2 at the same time, 23 (=8) types of colors can be produced.

FIG. 2 shows an embodiment of a wire fixing structure consisting of a braided filament 3 and a conducting wire 1.2.

In the figure, 11 is a wire fixing frame, and this fixing frame 1
1 is used to fix the end of the wire.

FIG. 3 shows a cross-sectional configuration of one embodiment of the present flat panel color display device. The wire rod block fixed to the wire rod fixing frame 11 shown in FIG. Further, on the upper surface of this container 12, a planar filter 14 in which three color filters of R, G, and B are successively provided is arranged.

FIG. 4 shows an example of arrangement of color filters. In this embodiment, color filters of the same color are lined up in the vertical direction to correspond to a display device with 2 pixels in the vertical direction and 11 pixels in the vertical direction as shown in the figure. The coordinates of this pixel are shown in FIG. Here, one X coordinate is determined by the conductors x1 to x6 and x7 to x12 in the X direction, and for each coordinate, R
, G, and B color filters 4.5.6.

In addition, Fig. 4. In, ×1 to xt2 and Y1 to Y
Reference numeral 11 indicates the position of the conducting wire in the X direction and the Y direction.

In the above configuration, if we consider the case where magenta is colored at the coordinates (1, 5), a potential difference is applied between the conductor x1 and Y5 to cause the color filter (R) 4 to develop color, and at the same time between the conductor x5 and Y5. Apply a potential difference to the color filter (B)
Color 6. As a result, the coordinates (1, 5) are colored magenta. To obtain a multicolored image on a display, up to three X-direction conductors per pixel may be simultaneously conducted.

[Effects of the Invention] As described above, according to the present invention, since the eight "filaments arranged in a grid pattern are made to correspond to the color filter of - color, even if one of the eight filaments is fused, However, brightness can be obtained with the remaining filament, the degree of influence on the emitted light color can be reduced, and reliability can be improved.

[Brief explanation of the drawing]

FIG. 1 is a basic configuration diagram of an embodiment of the flat panel color display device of the present invention, FIG. 2 is a configuration diagram of filament and conductive wire blocks, FIG. 3 is a cross-sectional configuration diagram of the device, and FIG. FIG. 5 is a diagram showing the arrangement of color filters, FIG. 5 is a diagram showing the coordinates of the color filters, and FIG. 6 is a configuration diagram of a conventional color display device. 1... Filament, 2, 3... Conductor wire in X and Y directions, 4.5.6.14... Color filter, 12...
glass container. Patent applicant Agent: Brother Industries, Ltd.
Patent Attorney Etsushi Kotani Patent Attorney Chief 1) Masashi Patent Attorney Yasuo Itaya Figure 1 Figure 2 Figure 3 Figure 5 Figure 6

Claims (1)

[Claims] 1. A flat panel collar comprising a filament as a light emitting source, conductive wires in the X and Y directions for passing current through the filament, and means for shielding the filament from the atmosphere. In the display device, eight filaments are arranged in a lattice pattern vertically and horizontally symmetrically around the intersection of the selected conductors in the X and Y directions.
One end of each filament is connected to a conductor in either the X direction or the Y direction, and the other ends are connected to each other, so that a unit of eight filaments centered at the above intersection point is continuously connected. 1. A flat panel color display device, characterized in that color filters of three colors R, G, and B are arranged facing each of these mutually adjacent units.