Light emitting tube array type display unit and driving method thereof

Abstract

A light emitting tube array type display unit comprising a light emitting tube array having juxtaposed a plurality of light emitting tubes each filled with a discharge gas thereinside, a support for supporting the light emitting tube array by being in contact with at least one of the display surface side and the rear surface side of the light emitting tube array, a plurality of display electrodes disposed at adjoining portions between light emitting tubes, for applying voltage to each light emitting tube from the opposite-side surfaces to generate counter discharge inside each light emitting tube, a plurality of scan electrodes disposed in a stripe form on the display surface side of the light emitting tubes in a direction crossing the lengthwise direction of the light emitting tubes to form light emitting regions at the intersections with light emitting tubes, and a plurality of address electrodes each disposed on the rear surface side of each light emitting tube, for selecting light emitting regions.

Description

technical field [0001] The present invention relates to an arc tube array type display device and a driving method thereof, and more particularly to an arc tube array type display device in which a plurality of arc tubes (also called are "display tube" and "gas discharge tube") aligned parallel to each other to display the desired image, each arc tube is formed of a thin tube with a diameter of about 0.5 to 5 mm, in which a phosphor layer is placed, and a discharge tube is sealed in it. gas. Background technique [0002] As for an arc tube array type display of this type, known are disclosed in Japanese Patent Application Laid-Open No. 2003-86141 and Japanese Patent Application Laid-Open No. 2003-86142. Figure 17 with 18 These examples are shown. Figure 18 yes Figure 17 is a partial cross-sectional view showing a state where the display device is cut in a direction perpendicular to the lengthwise direction of the arc tube of the display device. [0003] In this arc tub...

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Problems solved by technology

[0007] But in the arc tube array with this electrode layout, since the display discharge is set as a surface discharge, a higher discharge voltage is required

Also, the fluorescent layer is formed on the rear surface side inside the arc tube, and since the region of the surface discharge is separated from the above-mentioned fluorescent layer, the vacuum ultraviolet rays used for excitation cannot be sufficiently supplied to the fluorescent layer.

Also, since two display electrodes are placed at a single light emitting region on the front surface side of the arc tube array, the light shielding rate becomes high, resulting in low light emitting efficiency

[0008] Furthermore, due to irregularities caused by deviations in the tube diameter, etc., of the arc tube, insufficient adhesion between the display electrodes and the arc tube tends to occur, causing a deviation in the discharge start voltage for each light emitting area, resulting in failure to guarantee a higher Large operating margin and other issues

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