Phosphor electrodeposition method for field emission display

Abstract

Abstract Translated from Japanese (57)【要約】 【目的】 電界放出型カソードにおける電着法による均 一な膜厚の蛍光体膜の形成を可能にし、しかも、蛍光面 部位外側の無効画面部への蛍光体付着をなくした電着法 による蛍光面の形成方法を提供すること。 【構成】 電着法において、所定電極（有効画面部に形 成された電極パターン）１の周囲（無効画面部）にガー ド電極３を設け、電着槽１１内の電着液１２Ｇ（１２ Ｂ，１２Ｒ，１２Ｍ）中で、ガード電極３に電着用電極 電圧に対する逆バイアス電圧を印加して、この電圧制御 により有効画面電極部の端部付近の電界を制御すること ができ、結果的に有効画面電極端部を含め、有効画面電 極内部の蛍光体付着量を制御できる。こうして、所定電 極１上の蛍光面形成用パネル面へ均一な膜厚の蛍光体膜 形成を可能にし、しかも、蛍光面部位外側への蛍光体付 着をなくすことができる。 (57) [Abstract] [Purpose] It is possible to form a phosphor film with a uniform thickness by the electrodeposition method on a field emission cathode, and also to prevent the phosphor from adhering to the invalid screen part outside the phosphor screen site. To provide a method for forming a phosphor screen by an electrodeposition method. In the electrodeposition method, a guard electrode 3 is provided around a predetermined electrode (electrode pattern formed on the effective screen portion) 1 (ineffective screen portion), and an electrodeposition liquid 12G (12) in an electrodeposition tank 11 is provided. B, 12R, 12M), a reverse bias voltage with respect to the electrodeposition electrode voltage is applied to the guard electrode 3, and this voltage control can control the electric field near the end of the effective screen electrode portion. The amount of phosphor adhered inside the effective screen electrode including the end portion of the effective screen electrode can be controlled. In this way, it is possible to form a phosphor film having a uniform film thickness on the phosphor screen forming panel surface on the predetermined electrode 1, and it is possible to eliminate the adherence of the phosphor to the outside of the phosphor screen portion.

Inventors

• 👤 Tadashi Kiyomiya
• 👤 正 清宮
• 👤 Toshio Oboshi
• 👤 敏夫 大星
• 👤 Masami Okita
• 👤 昌海 沖田

Bibliographic Details