PURPOSE: To provide an inexpensive display tube of stabilized characteristic by coating the inside of an airtight container with an inorganic moisture absorbing material application film of no more than a predetermined μm of average particle size, for the display tube of the container.

CONSTITUTION: A stripe-shape positive electrode A is adhered horizontally to a front glass plate FG, and a stripe-shape negative electrode K is adhered to a back plate BP in the parallel direction. A display cell CL is formed at a position where each stripe crosses with one another perpendicularly, and a barrier plate PW is formed between the adjacent cells by, for example, printing with a glass ink. The interval between the electrodes is determined by the barrier plate, and a discharging space is ensured. A moisture absorption layer AH is formed on the outside of the screen forming the cell. As a moisture absorbent, an ink, for which zeolite of average particle size of no greater than 50μm, is kneaded with a liquid vehicle, is used, and the front plate is printed in this ink. As the vehicle, ethyl cellulose is dissolved in pine oil. After drying, the whole material is baked at a predetermined temperature, and the solvent and the resin are vaporized.