Matsushita Electric Industrial Co., Ltd.

Noboru Aikawa

Yutaka Nishimura

Masahide Tsukamoto

Hirotoshi Watanabe

Koji Matsuo

Hiroshi Iwamoto

Kohji Matsuo

Atsunori Hosoki

Keiichi Otake

Tokuhisa Komatsu

An image display element comprising a vacuum exterior container including a face plate and a back housing. A cathode is located within the vacuum exterior container. A control electrode controls electron beams projected from the cathode and a fluorescent layer generates light by projecting the electron beams, and a metal back layer provided on the fluorescent layer projects the light of fluorescent layer forward by the effect of specular gloss. A carbon layer is provided on the metal back layer to reduce the generation of backwardly scattered light. The metal back layer and carbon layer are provided by releasing from a supporter having mold release characteristics. The thickness of the metal back layer is determined in relation to the predetermined supply voltage such that the energy transmission factor of the reflected and dispersed electrons on the image display element is less than 30%.

Method of making an image display element

The fine-line pattern forming method is to form a pattern by transferring the pattern formed on the blanket of which surface is covered with an elastic material mainly composed of silicone resin, on a substrate on which a tack layer is formed. As an example thereof, the forming method of cathode-ray tube anode comprises a step of filling the groove of an intaglio with a graphite ink, a step of transferring the graphite ink in the groove of the intaglio on a blanket of which surface is covered with an elastic material mainly composed of silicone resin, a step of forming a tack layer on a substrate, a step of transferring and printing the pattern transferred on the blanket onto the substrate, a step of filling the groove of the intaglio with a phosphor ink, a step of transferring the ink in the groove of the intaglio on the blanket of which surface is covered with an elastic material mainly composed of silicone resin, a step of forming a tack layer on the substrate, a step of transferring and printing the pattern transferred on the blanket on the substrate on which the graphite pattern has been formed, a step of transferring an aluminum thin film possessing multiple pores as a metal-backed layer so as to cover a black matrix and a phosphor layer, and a step of firing the substrate covered with the aluminum thin film. The graphite ink comprises graphite powder, vehicle containing depolymerization type organic binder, and organic acid metal salt. The phosphor ink comprises phosphor powder and vehicle containing polymerization type organic binder.

Pattern forming method and ink compostion

The present invention intends to provide a gap-forming sheet for laminating a plurality of flat plate electrodes, for example, for controlling electron beam at high accuracy in a short period of time. Gap-forming sheets each including a support member formed by depolymerizing resin, gap members for providing gaps between the flat plate electrodes, and a bonding paste for bonding the flat plate electrodes, are held between the flat plate electrodes, which are baked to decompose the support members, and thus, by melting the bonding paste, the flat plate electrodes are joined together for lamination, with gaps being provided by the gap members.

Method of joining flat electrodes

This invention proposes methods of effectively forming a metal-backed layer and an anode using a metal film transferring sheet in which micro-holes are formed. that is, the metal film transferring sheet is structured by forming a metal film on a mold-releasable, highly characteristic sheet. Then, the metal film having micro-holes of the metal film transferring sheet is transferred onto a phosphor screen. Or, on the metal film of the above-mentioned metal film transferring sheet, is formed a phosphor screen and the metal film, the phosphor screen, etc. are all transferred onto a face plate form an anode of a cathode-ray tube. Then the methods proposed by this invention are applied for making phosphor products of, for example, a cathode-ray tube or a plasma display. According to these methods, there is no need to use a large-scaled manufacturing facility and high quality, low cost products can be obtainable.

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Ibaraki, Japan

Noboru Aikawa