| 摘要 |
PURPOSE: An electric signboard plasma display device of a separable structure is provided to simplify manufacture procedure, reduce manufacture cost, and satisfy demands for various size of the device. CONSTITUTION: An electric signboard plasma display device of a separable structure comprises a front glass substrate(1), transparent electrodes(2), a protection film(4), a back glass substrate(5), a metal electrode(6), and discharge cells(11). The transparent electrodes(2) are formed on the front glass substrate(1). The metal electrode(6) is formed on the back glass substrate(5). The discharge cells(11) are rectangular glass pipes that are almost flat. The protection film(4) is formed by applying magnesium oxide to the top side of each rectangular glass pipe. The fluorescent layers(9A,9B,9C) are formed by applying fluorescent materials to bottom side of the rectangular glass pipe. The size of the rectangular glass pipe depends on use and size of the electric signboard. The rectangular glass pipe is sealed by a torch. The rectangular glass pipes for red, green and blue are inserted between two spacers that are fixed to the back glass substrate(5) between the transparent electrodes(2) and metal electrode(6). Then, the front glass substrate(1) and the back glass substrate(5) are sealed.
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