KR100808229B1 - Arc tube array type display and its driving method - Google Patents

Abstract

According to the present invention, a plurality of light emitting tubes are disposed in parallel to the long sides of the rectangular screen, and a plurality of first electrodes and second electrodes are provided on the display surface side of the light emitting tube array in a direction crossing the longitudinal direction of the light emitting tubes, A plurality of third electrodes are provided on the rear side of the tube array along the longitudinal direction of the light emitting tube, and when a screen is displayed, scan voltages are sequentially applied to the plurality of third electrodes using the third electrode as a scan electrode. In the meantime, a voltage is applied to a desired first electrode or a second electrode to generate a discharge in a desired light emitting cell so that the light emitting cell is selected, and then a display discharge is generated between adjacent first and second electrodes. Is done.

Light tube, light tube array, display device, phosphor layer

Description

Light tube array type display device and driving method thereof {ARC TUBE ARRAY TYPE DISPLAY AND ITS DRIVING METHOD}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a light emitting tube array type display device and a driving method thereof, and more particularly to a light emitting tube ("display tube") in which a phosphor layer is provided and a discharge gas is sealed inside a tubule having a diameter of 0.5 to 5 mm. Or a " gas discharge tube "), and a light emitting tube array type display device for displaying an arbitrary image and a driving method thereof.

As this type of light emitting tube array type display device, those described in JP-A-2003-86141 and JP-A-2003-86142 are known. This example is shown in FIG. 9 and FIG. FIG. 10 is a partial cross-sectional view of FIG. 9, illustrating a state in which the display device is cut in a direction perpendicular to the longitudinal direction of the light emitting tube.

In the light emitting tube array type display device, a plurality of light emitting tubes 1 (light emitting tube array) arranged in parallel are inserted into a pair of flat supports 41 and 42 such as glass or resin to form a display device. I'm trying to. It is also known to use a film sheet that is transparent to the support. Inside the light emitting tube 1, a red phosphor layer R, a green phosphor layer G, and a blue phosphor layer B are provided, and the discharge gas is sealed. One pixel is formed by making these three-color light emitting tubes 1 into one set, and full-color display is performed accordingly.

In this display device, a discharge is generated inside the light emitting tube. Therefore, an electrode is formed on the light emitting tube array facing surface of the support to bring the electrode into contact with the surface of the light emitting tube.

This electrode is usually provided with a third electrode A for address (selection) on each of the light emitting tubes on an opposite surface of the light emitting tube array on the back side of the support 42, and the support 41 on the front side (display surface side). The plurality of first electrodes X and the second electrodes Y for display are arranged adjacent to each other in a direction intersecting with the third electrode A on the light emitting tube array facing surface of the light emitting tube array.

The first and second electrodes X and Y are generally formed of a transparent electrode 43 made of an ITO film, a SnO ₂ film, or the like, and a bus electrode 44 made of a metal film. The third electrode A is formed of a metal film.

FIG. 11 is an explanatory diagram showing an example of a driving method of the light emitting tube array type display device shown in FIG. 9.

In this light-emitting tube array type display device, driving during display is performed by the address-display separation type subfield method, similarly to a three-electrode surface discharge type PDP (plasma display panel). Therefore, the figure shows an example of the field configuration and the driving voltage waveform when driving by the address-display separation subfield method.

This method, thereby forming one frame, the brightness is another example of eight subfields sf ₁ ~sf _8. Even in an interlaced display in which one frame is composed of, for example, two fields (odd field and even field), each field f _i is similarly composed of _eight subfields sf _{1 to} sf ₈ . The relative ratio of the luminance intensities of the eight subfields is 1: 2: 4: 8: 16: 32: 64: 128.

Each subfield sf ₁ includes a reset period TR for initializing charges of all light emitting cells (unit light emitting regions), an address period TA for selecting light emitting cells, and a display period for maintaining discharge of light emitting cells ( TS).

In the reset period TR, a reset pulse Pr is applied to the display electrode pair, for example, the first electrode X, to generate a reset discharge between the second electrodes Y.

In the address period TA, the scan electrode Pc is sequentially applied to the second electrode Y while the second electrode Y is used as the scan electrode in the display electrode pair. The address pulse Pa is applied to the third electrode A to generate address discharge at the intersection of the address electrode A and the Y electrode to select the light emitting region.

In the display period TS, between the display electrode pairs X and Y by alternately applying the sustain pulses Ps between the X electrode and the Y electrode using wall charges formed on the inner surface of the light emitting region by the address discharge. Display discharges (called sustain discharges or sustain discharges) are generated in the display to display them.

Accordingly, as indicated by arrows in FIG. 10, the red light 45 is emitted from the light emitting tube 1 in which the red phosphor layer R is formed, and the light emitting tube 1 in which the green phosphor layer G is formed. ), Green light 46 is emitted, and blue light 47 is emitted from the light emitting tube 1 in which the blue phosphor layer B is formed.

The address discharge is an opposite discharge generated in the light emitting tube 1 between the address electrode A and the Y electrode facing the light emitting tube 1, and the display discharge is two display electrodes X arranged in parallel on the plane. , Y) is surface discharge generated in the light emitting tube 1. With this electrode arrangement, a plurality of light emitting regions (unit light emitting regions: light emitting cells) are formed in the longitudinal direction of the light emitting tube.

However, in such a light emitting tube array type display device, in the case of a horizontally long screen, when the light emitting tubes are arranged in the vertical direction, the number of use of the light emitting tubes is very large and the manufacturing cost is high.

Further, in order to avoid this, it is considered to arrange the light emitting tube in the horizontal direction. In this case, when the scanning is performed using the Y electrode as the scan electrode in the display electrode pair in the address period TA, the number of scan lines is large. And the address period TA becomes long. One frame is usually 1/60 (seconds), and there is a limit to the period of the above one subfield, so that the display period TS is shortened and the display luminance is reduced.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and in the case of a light emitting tube array type display device having a rectangular screen, the light emitting tube is arranged parallel to the long side of the rectangular screen, and an address provided along the light emitting tube during the address period. The object of the present invention is to reduce the manufacturing cost and increase the display luminance by performing scanning using the electrode as the scan electrode.

The present invention provides a light emitting tube array type display device in which a plurality of light emitting tubes in which discharge gas is sealed is arranged in parallel, wherein the plurality of light emitting tubes are arranged in parallel to the long side of the rectangular screen, and are arranged on the display surface side of the light emitting tube array. A plurality of first electrodes and second electrodes arranged to cross each light emitting tube in a direction crossing the longitudinal direction of the light emitting tube, and generating display discharge in the light emitting tube between adjacent first and second electrodes; An electrode and a plurality of third electrodes provided on the rear side of the light emitting tube array along the longitudinal direction of the light emitting tube and forming light emitting cells at intersections with the first electrode or the second electrode; Is displayed, the scan voltage is sequentially applied to the plurality of third electrodes using the third electrode provided for each light emitting tube as the scan electrode, and the address is applied to the desired first electrode or the second electrode during that time. A light emission is performed by applying a voltage to generate a discharge for an address in a desired light emitting cell to select a light emitting cell, and then performing display by generating a display discharge between an adjacent first electrode and a second electrode. It is a tube array type display device.

According to the present invention, the number of uses of the light emitting tube can be reduced, thereby reducing the manufacturing cost. In addition, when performing display using the address-display separation subfield method, the address period for selecting light emitting cells can be shortened. As a result, the display period can be increased and the display brightness can be increased.

BRIEF DESCRIPTION OF THE DRAWINGS Explanatory drawing which shows the whole structure of the light emitting tube array type display apparatus of this invention.

2 is an explanatory diagram showing an example of a tube arrangement of a light emitting tube array;

3 is an explanatory diagram showing a driver arrangement of a light emitting tube array display device;

4 is an explanatory diagram showing an example of a drive voltage waveform of a light emitting tube array type display device;

5 is an explanatory diagram showing a comparative example 1 of a light emitting tube array display device;

6 is an explanatory diagram showing an example of a drive voltage waveform of a light emitting tube array type display device of Comparative Example 1. FIG.

7 is an explanatory diagram showing a comparative example 2 of a light emitting tube array display device;

8 is an explanatory diagram showing an example of a drive voltage waveform of a light emitting tube array display device of Comparative Example 2. FIG.

9 is an explanatory diagram showing an overall configuration of a conventional light emitting tube array display device.

10 is a partial cross-sectional view of FIG. 9.

FIG. 11 is an explanatory diagram showing a driving method of the light emitting tube array display device shown in FIG. 9; FIG.

In the present invention, the light emitting tube array type display device may have a rectangular screen, and a plurality of light emitting tubes inside which the discharge gas is sealed may be disposed in parallel with the long side of the rectangular screen. The diameter of the capillary serving as the tube of the light emitting tube may be any diameter. Preferably, glass of about 0.5 to 5 mm in diameter is applied. The shape of a customs pipe may have a cross section of any shape, such as a circular cross section, a flat oval cross section, and a rectangular cross section.

The plurality of first and second electrodes are provided in a stripe shape on the display surface side of the light emitting tube array in a direction crossing the longitudinal direction of the light emitting tube, and can generate display discharge in the light emitting tube between adjacent electrodes. It is good if there is.

These first and second electrodes can be formed using various materials known in the art. As the material used for the electrode includes, for example, a transparent conductive material or, Ag, Au, Al, a metal conductive material such as Cu, Cr, such as ITO, SnO _2. As a method for forming the electrode, various methods known in the art can be applied. For example, you may form using thick film formation techniques, such as printing, and you may form using the thin film formation technique which consists of a physical deposition method or a chemical deposition method. As a thick film formation technique, the screen printing method etc. are mentioned. As a physical deposition method in a thin film formation technique, a vapor deposition method, sputtering method, etc. are mentioned. Examples of the chemical deposition method include a thermal CVD method, an optical CVD method, a plasma CVD method, and the like.

The plurality of third electrodes may be provided for each of the light emitting tubes on the rear side of the light emitting tube array along the longitudinal direction of the light emitting tube, and used for light emitting cell selection in which light emitting cells are formed at intersections with the display electrodes.

This third electrode can also be formed using various materials and methods known in the art.

In the present invention, the screen display uses a third electrode provided for each light emitting tube as a scan electrode to sequentially apply scan voltages to the plurality of third electrodes, while applying the address voltage to the desired first electrode or the second electrode. This is performed by generating an address discharge in a desired light emitting cell to select a light emitting cell, and then generating display discharge between the first and second electrodes.

In the above configuration, it is preferable that the light emitting tube array has phosphor layers of a single color, for example, red, green, and blue, for each light emitting tube.

The light emitting tube array type display apparatus is a light emitting tube array type display apparatus which comprises one pixel with n (n: arbitrary natural numbers) subpixels, and it is preferable that the long side of a rectangular screen is longer than n times the short side.

Specifically, the light-emitting tube array type display device constitutes one pixel with three subpixels of red (R), green (G), and blue (B), and the long side of the rectangular screen is longer than three times the short side. It is preferable to set it as the light-emitting tube array type display apparatus of full color display.

In the above configuration, a front side support body disposed on the display surface side of the light emitting tube array and abutting the light emitting tube array to support the light emitting tube array, and a light emitting tube array disposed on the rear side of the light emitting tube array and abutting the light emitting tube array It is preferable that it is the structure further equipped with the back side support body which supports the. In this case, the first electrode and the second electrode can be formed on the light emitting tube array facing surface of the front side support, and the third electrode can be formed on the light emitting tube array facing surface of the back side support.

The present invention further provides a method of driving the light emitting tube array type display device, wherein when displaying a screen, an address period is provided in which one frame is composed of a plurality of subfields having different luminance and each subfield is selected from a light emitting cell. And a display period in which the selected light emitting cell emits light, and at least in the address period, scan voltages are sequentially applied to third electrodes provided for each light emitting tube, and address voltages are applied to desired first or second electrodes. The wall discharge is formed in the light emitting cell by generating an address discharge at the intersection of the three electrodes and the first electrode or the second electrode, and in the display period, sustain pulses are alternately applied between the adjacent first and second electrodes. To generate display discharge in a light emitting cell in which wall charges are formed in the light emitting tube, thereby performing screen display. A method of driving a light tube array display device.

In the above driving method, a reset period for initializing the wall charges of all the light emitting cells is provided before the address period of each subfield, and a voltage pulse is applied to all the first electrodes and the second electrodes in the reset period to reset all the light emitting cells. It is desirable to generate a discharge of the dragon.

EMBODIMENT OF THE INVENTION Hereinafter, this invention is demonstrated in detail based on the Example shown to drawing. In addition, this invention is not limited by this, A various deformation | transformation is possible.

BRIEF DESCRIPTION OF THE DRAWINGS It is explanatory drawing which shows the whole structure of the light emitting tube array type display apparatus of this invention. The display device 10 includes a light emitting tube array type display device that displays an arbitrary image by arranging a plurality of light emitting tubes sealed in discharge gas in parallel with a phosphor layer inside a glass tubing having a diameter of about 0.5 to 5 mm. to be.

In this figure, 1 is a light emitting tube, 41 is a support (substrate) on the front side (display surface side), 42 is a support (substrate) on the back side, X and Y are the first and second electrodes, and A is the first electrode. 3 electrodes.

In the light emitting tube array type display device, a plurality of light emitting tubes 1 are arranged in parallel in the column direction of the screen to form a light emitting tube array. That is, the light emitting tube array has a horizontal stripe structure in which the light emitting tubes are arranged in the horizontal direction. The light emitting tube array is inserted into the support body 41 on the front side and the support body 42 on the back side.

The front support body 41 and the back support body 42 are made of a flexible sheet such as a PET film. The support body 41 on the front side is transparent. The support 42 on the back side is preferably opaque because of the contrast relationship of the display. The tube of the light emitting tube 1 is made of borosilicate glass or the like.

On the opposing surface of the light emitting tube of the support body 41 on the front side, a plurality of stripe-shaped first and second electrodes X, Y are formed to cross each light tube. The first and second electrodes X and Y are used as display electrodes as in the conventional example, and are provided to contact the light emitting tube 1 in a direction intersecting with the third electrode A. FIG. The first and second electrodes X and Y are each composed of a transparent electrode 43 such as ITO or SnO ₂ and a bus electrode 44 made of metal such as nickel, copper, aluminum, and chromium. These electrodes are formed by methods known in the art, such as sputtering, vapor deposition, plating, and printing.

The third electrode A is formed on the surface opposite to the light emitting tube of the back side support 42. The third electrode A is used for selecting a light emitting cell as in the prior art, but in the present invention, the third electrode A is used as a scan electrode and is provided to be in contact with the light emitting tube 1 along the longitudinal direction of the light emitting tube 1. The third electrode A is formed using a metal material such as nickel, copper, aluminum, or silver, without using a transparent electrode material. These electrodes are also formed by methods known in the art, such as sputtering, vapor deposition, plating, and printing. The third electrode A may be formed directly on the outer wall surface of the light emitting tube 1.

Thus, in the present light emitting tube array type display device, the light emitting tube 1 is disposed in the horizontal direction (row direction of the screen), and the first and second electrodes X, Y) is arrange | positioned and the 3rd electrode A is arrange | positioned in the horizontal direction on the back side of the light emitting tube 1. As shown in FIG. In other words, the first and second electrodes X and Y and the third electrode A are arranged so as to be orthogonal to each other when the display device is viewed in a plan view, and the first and second electrodes X and Y and the first and second electrodes X and Y are arranged. The intersection with the three electrodes A becomes a unit light emitting region (unit discharge region: light emitting cell).

It is explanatory drawing which shows an example of light tube arrangement of a light tube array.

Each light emitting tube is a single color light emitting tube for red (R), green (G), and blue (B). This light emitting tube array is a horizontal stripe structure in which these monochromatic light emitting tubes are arranged in a horizontal length in the order of R, G, and B along the column direction of the screen as shown in the figure.

The tube of a light emitting tube uses glass customs. This tubular tube has a circular cross section and is made of Pyrex (registered trademark: heat-resistant glass manufactured by Corning, USA) with a diameter of 0.7 to 1.5 mm, a thickness of 0.07 to 0.1 mm, and a length of 220 to 300 mm.

The capillary tube, which is a tube of the light emitting tube 1, manufactures a cylindrical tube by a daener method, produces a glass base material similar in shape to that of the customs tube to be formed by heating the cylindrical tube, and heats and softens it. It is produced by row (extension).

The internal structure of the light emitting tube is as shown in FIG. That is, in the discharge space inside the light emitting tube 1, phosphor layers of R (red), G (green) and B (blue) are provided for each color on the back side, and discharge gas containing neon and xenon flows in. Thus, both ends are sealed, whereby a plurality of light emitting cells of the same color are formed inside each light emitting tube.

At the time of display, red light 45, green light 46, and blue light 47 are emitted from the light emitting tube 1, and three light emitting cells in three light emitting tubes for adjacent R, G, and B are used. One set consists of one pixel. As for the inside of the light emitting tube, a structure known in the art can be applied as described in JP-A-2003-86142.

The light emitting tube of this example has a circular cross section, but the light emitting tube is not limited thereto, and may have any shape such as an ellipse, a rectangle, a trapezoid, or the like.

Next, a driving method of the light emitting tube array type display device of the present invention will be described.

3 is an explanatory diagram showing a driver arrangement of a light emitting tube array display device.

In the figure, 11 is a scan driver, 12 is an address driver, 13 is an X sustain driver, and 14 is a Y sustain driver.

The displayed one pixel S is located at the intersection of the third electrodes for each of the three light emitting tubes R, G, and B and the first and second electrodes X and Y forming a pair across the light emitting tubes. Is formed. Therefore, in the illustrated light emitting tube array type display device, the aspect ratio of the screen is 1: 5.

The scan driver 11 is connected to the third electrode A, and applies a scan pulse for light emitting cell selection to the third electrode A in the address period. The address driver 12 is connected to the second electrode Y, and applies an address pulse for light emitting cell selection to the second electrode Y in the address period. The X sustain driver 13 is connected to the first electrode X, and applies a sustain pulse to the second electrode Y in the display period. The Y sustain driver 14 is connected to the second electrode Y, and applies a sustain pulse to the second electrode Y in the display period.

4 is an explanatory diagram showing an example of drive voltage waveforms of the light-emitting tube array display device.

In the light emitting tube array type display device, driving during display is performed by the address-display separation type subfield method. Therefore, the field configuration is the same as that shown in FIG.

However, as described above, in the light emitting tube array type display device, the third electrode A is used as the scan electrode and the second electrode Y is used as the address electrode in the address period. The point of generating display discharge between the 1st, 2nd electrodes X and Y is the same as that shown in FIG.

In other words, thereby forming one frame luminance is another example of eight subfields sf ₁ ~sf _8. When one frame consists of two fields, for example, each field f _i similarly comprises eight subfields sf _{1 to} sf ₈ . The relative ratio of the luminance intensities of the eight subfields is 1: 2: 4: 8: 16: 32: 64: 128.

Each subfield sf _j has a reset period TR for initializing the wall charges of all of the light emitting cells (evening the charged state), an address period TA for selecting the light emitting cells, and a discharge of the light emitting cells. It constitutes a display period TS.

In the reset period TR, the reset pulse Pr is applied to the third electrodes A ₁ , A ₂ , A ₃ ,..., A ₉ simultaneously to reset discharge between the first electrodes X _{1 to} X ₁₅ . Generates.

In the address period TA, the scan pulse Pc is sequentially applied from the top to the third electrode A using the third electrodes A _{1 to} A ₉ as the scan electrodes, during which the desired second The address pulse Pa is applied to the electrode Y to generate address discharge at the intersection of the third electrode A and the second electrode Y to select the light emitting cells.

In the display period TS, the sustain pulse Ps is alternately applied between the first electrode X and the second electrode Y by using the wall charges formed in the light emitting cells inside the tube by the address discharge, thereby providing the first The display discharge is generated between the second electrodes X and Y.

Accordingly, as indicated by the arrow in FIG. 10, the red light 45 is emitted from the light emitting tube 1 in which the red phosphor layer R is formed, and the light emitting tube 1 in which the green phosphor layer G is formed. Green light 46 is emitted from the light source, and blue light 47 is emitted from the light emitting tube 1 in which the blue phosphor layer B is formed.

The address discharge is an opposite discharge generated in the light emitting tube 1 between the third electrode A and the second electrode Y opposing the light emitting tube 1, and the display discharges are disposed adjacent to and parallel to the plane. This is a surface discharge generated in the light emitting tube 1 between two first and second electrodes X and Y. With this arrangement of electrodes, a plurality of light emitting regions (unit light emitting regions: light emitting cells) of the same color are formed in the longitudinal direction of each of the light emitting tubes arranged along the column direction of the screen.

5 is an explanatory view showing a comparative example 1 of a light emitting tube array display device.

In this example, a plurality of light emitting tubes 1 are arranged in parallel in the row direction of the screen to form a light emitting tube array. That is, it is a light tube array of a vertical stripe structure. The aspect ratio of the screen is 1: 5 as in the above-described embodiment.

In the figure, 21 is a scan driver, 22 is an address driver, 23 is an X sustain driver, and 24 is a Y sustain driver.

The connection of the driver is the same as that of the light emitting tube array type display device shown in FIG. That is, the scan driver 21 is connected to the second electrode Y, and applies a scan pulse to the second electrode Y in the address period. The address driver 22 is connected to the third electrode A, and applies an address pulse for light emitting cell selection to the third electrode A in the address period. The X sustain driver 23 is connected to the first electrode X, and applies a sustain pulse to the first electrode X in the display period. The Y sustain driver 14 is connected to the second electrode Y, and applies a sustain pulse to the second electrode Y in the display period.

6 is an explanatory diagram showing an example of a drive voltage waveform of the light emitting tube array type display device of Comparative Example 1. FIG.

In the light emitting tube array type display device of Comparative Example 1, when the screen is displayed by the address-display separation subfield method, the driving voltage waveform is as shown in the figure. In this display device, the second electrode Y is used as the scan electrode, and the third electrode A is used as the address electrode.

That is, in the reset period TR, the reset pulse Pr is applied to the second electrodes Y ₁ , Y ₂ , and Y ₃ simultaneously to reset reset discharges between the first electrodes X ₁ , X ₂ , and X ₃ . Generate.

In the address period TA, the scan pulses Pc are sequentially applied from the top to the second electrode Y by using the second electrodes Y ₁ , Y ₂ , Y ₃ as scan electrodes. The address pulse Pa is applied to the desired third electrode A during the time period, and address discharge is generated at the intersection of the third electrode A and the second electrode Y to select the light emitting cell.

In the display period TS, display discharge is generated between the first and second electrodes X and Y by alternately applying the sustain pulse Ps between the first electrode X and the second electrode Y. Then, the screen is displayed.

In the light emitting tube array type display device of Comparative Example 1, since a plurality of light emitting tubes are arranged along the row direction of the screen, the number of use of the light emitting tubes is very large, and the manufacturing cost is high.

7 is an explanatory diagram showing a comparative example 2 of a light emitting tube array display device.

In this example, a plurality of light emitting tubes 1 are arranged in parallel along the column direction of the screen to form a light emitting tube array. That is, it is a light tube array of a horizontal stripe structure. The aspect ratio of the screen is 1: 5 as in the above embodiment. Therefore, in the case where only the arrangement of the light emitting tube array is focused, it is the same as in the above-described embodiment. However, the driver connection method described below is different from the above-described embodiment.

In the figure, 31 is a scan driver, 32 is an address driver, 33 is an X sustain driver, and 34 is a Y sustain driver.

The scan driver 31 is connected to the second electrode Y, and applies a scan pulse to the second electrode Y in the address period. The address drive 32 is connected to the third electrode A, and applies an address pulse for light emitting cell selection to the third electrode A in the address period. The X sustain driver 33 is connected to the first electrode X, and applies a sustain pulse to the first electrode X in the display period. The Y sustain driver 34 is connected to the second electrode Y, and applies a sustain pulse to the second electrode Y in the display period.

8 is an explanatory diagram showing an example of a drive voltage waveform of the light emitting tube array type display device of Comparative Example 2. FIG.

In the light emitting tube array type display device of Comparative Example 2, when the screen is displayed by the address-display separation subfield method, the driving voltage waveform is as shown in the figure. In this display device, the second electrode Y is used as the scan electrode, and the third electrode A is used as the address electrode.

That is, in the reset period TR, the reset pulse Pr is simultaneously applied to the second electrodes Y ₁ , Y ₂ , Y ₃ ,..., Y ₁₅ to reset between the first electrodes X _{1 to} X ₁₅ . Generates a discharge.

In the address period TA, the second electrodes Y ₁ , Y ₂ , Y ₃ ,..., Y ₁₅ are sequentially scanned from the left (or right) with respect to the second electrode Y, using the second electrodes Y ₁ , Y ₂ , Y ₃ ,. The pulse Pc is applied, and in the meantime, the address pulse Pa is applied to the desired third electrode A, and the address discharge is performed at the intersection of the third electrode A and the second electrode Y. Is generated to select a light emitting cell.

In the display period TS, display discharge is generated between the first and second electrodes X and Y by alternately applying the sustain pulse Ps between the first electrode X and the second electrode Y. Thus, the screen is displayed accordingly.

In the light emitting tube array type display device of Comparative Example 2, scanning is performed using the second electrode Y as a scan electrode in the address period TA, so that the number of scan lines increases and the address period TA becomes long. . Therefore, the display period TS is shortened by that amount, and display brightness is low.

As can be seen from the comparison with Comparative Examples 1 and 2 described above, in the light emitting tube array type display device of the present embodiment, the light emitting tube array has a horizontal stripe structure and is provided so as to extend in the longitudinal direction of the light emitting tube. By using the electrode as a scan electrode, the number of uses of the light emitting tube can be reduced, the address period can be shortened, and the light emission luminance of the screen can be improved.

Specifically, in the case where the screen size of the light emitting tube array type display device is, for example, 100 cm wide by 15 cm long, and the tube diameter of the light emitting tube is 1 mm, the light emitting tube has a vertical stripe structure in which the light emitting tube is arranged in the vertical direction. I need a coffin.

On the other hand, if it is a horizontal stripe structure which arrange | positioned the light emitting tube which concerns on a present Example to a horizontal direction, it is sufficient for 150 light emitting tubes.

Also in the case of the horizontal stripe structure, in the usual driving method (the driving method using the second electrode Y as the scan electrode), the scan line is 1000 lines. For this reason, if the scan time of one (one line) is 5 ms, it takes 5 ms to complete the scan.

In contrast, in the driving method of the present embodiment, scanning is performed by using the electrodes arranged along the longitudinal direction of each light emitting tube, that is, the third electrode A, so that the scan lines are 150 lines. For this reason, if the scan time of one time (one line) is 5 ms, the scan time will be 750 ms and it will be less than one-sixth of said drive method.

As described above, in the light emitting tube array type display device, the light emitting tube array has a horizontal stripe structure, and scanning is performed using a third electrode provided for each light emitting tube, thereby reducing the number of uses of the light emitting tube. At the same time, the address period can be shortened and the light emission luminance of the screen can be improved.

In the light emitting tube array type display device described in the embodiment, the aspect ratio of the screen is 1: 5. However, when the aspect ratio is 1: 3 or more in the case of a full-color display device, the above effects can be obtained.

That is, in general terms, the light emitting tube array type display device having a structure in which one pixel is composed of n (n: arbitrary natural numbers) light emitting tubes, and the above effects can be obtained if the aspect ratio is 1: n or more.

Claims (7)

A light emitting tube array type display device in which a plurality of light emitting tubes sealed with discharge gas are arranged in parallel, The screen of the display device is composed of a rectangular screen having a long side and a short side, and the plurality of light emitting tubes are disposed in parallel to the long side of the rectangular screen, A plurality of light emitting tubes arranged on the display side of the light emitting tube array so as to cross each light emitting tube in parallel with a short side of the rectangular screen and generating display discharge within the light emitting tube between adjacent first and second electrodes. The first electrode and the second electrode, On the rear side of the light emitting tube array, parallel to the long side of the rectangular screen, each light emitting tube is provided along the longitudinal direction of the light emitting tube and forms a light emitting cell at an intersection with the first electrode or the second electrode. Having a third electrode, In displaying the screen, a plurality of third electrodes are used as scan electrodes, and a scan voltage is sequentially applied to the plurality of third electrodes in a direction forming a short side of the rectangular screen, during which a desired first electrode is used. Or by applying an address voltage to the second electrode to generate an address discharge in the desired light emitting cell to select the light emitting cell, and then performing display by generating a display discharge between the adjacent first and second electrodes. A light-emitting tube array display device. The method of claim 1, The light emitting tube array has a single color phosphor layer for each light emitting tube. The method of claim 1, The light emitting tube array type display device is a light emitting tube array type display device comprising one pixel with n (n: arbitrary natural numbers) subpixels, wherein the long side of the rectangular screen is longer than n times the short side. Light tube array type display device. The method of claim 1, The light emitting tube array type display device is a light emitting tube array type display device of a full color display in which one pixel is composed of three subpixels of red, green, and blue, and the long side of the rectangular screen is three times the short side of the rectangular screen. A light emitting tube array type display device, which is longer. The method of claim 1, A front side support disposed on the display surface side of the light emitting tube array and supporting the light emitting tube array in contact with the light emitting tube array; Further comprising a side support, wherein the first electrode and the second electrode are formed on the light emitting tube array opposing surface of the front support, and the third electrode is formed on the light emitting tube array opposing surface of the back support. Tubular Array Display. A driving method of a light emitting tube array type display device in which a plurality of light emitting tubes sealed with discharge gas are arranged in parallel therein, The light emitting tube array display device, The screen of the display device is composed of a rectangular screen having a long side and a short side, and the plurality of light emitting tubes are disposed in parallel to the long side of the rectangular screen, A plurality of light emitting tubes arranged on the display side of the light emitting tube array so as to cross each light emitting tube in parallel with a short side of the rectangular screen and generating display discharge within the light emitting tube between adjacent first and second electrodes. The first electrode and the second electrode, On the rear side of the light emitting tube array, parallel to the long side of the rectangular screen, each light emitting tube is provided along the longitudinal direction of the light emitting tube and forms a light emitting cell at an intersection with the first electrode or the second electrode. It is the structure provided with the 3rd electrode, When displaying the screen of the light emitting tube array type display device, using the plurality of third electrodes as scan electrodes, a scan voltage is sequentially applied to the plurality of third electrodes in a direction forming a short side of the rectangular screen. In the meantime, an address voltage is applied to a desired first electrode or a second electrode to generate an address discharge in the desired light emitting cell to select the light emitting cell, and thereafter, for display between the adjacent first and second electrodes. A display method of a light emitting tube array type display device, wherein screen display is performed by generating a discharge. The method of claim 6, Before applying a scan voltage to the plurality of third electrodes, a reset period for initializing wall charges of all light emitting cells is provided, and a voltage pulse is applied to all the first electrodes and the second electrodes in the reset period, so that all the light emitting cells A discharge method for driving a light-emitting tube array display device, characterized in that for generating a reset discharge in the.

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