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EP0349425A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Three-colour fluorescent screen using micro-tip cathodes

Assignee: Commissariat à l'Énergie Atomique et Aux Énergies Alternatives
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Filing: 1989-06-28
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Granted: —
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Expires: 2009-06-28
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Abstract

Abstract Translated from French Ecran fluorescent trichrome à micropointes constitué de deux substrats (10, 22) en regard. Le premier substrat (10) supporte des conducteurs cathodiques (12) munies de micropointes (14), des grilles (16) et une couche isolante (18) les séparant. Le second substrat (22) supporte trois séries de bandes (26) conductrices parallèles. Les bandes (26) conductrices de chaque série sont reliées électriquement entre elles et recouvertes d'un matériau (28, 29, 30) luminescent dans l'une des trois couleurs primaires, rouge, vert, bleu. Chaque série de bandes (26) conductrices correspond à une anode (A1, A2, A3) rouge, verte, bleu. Cet écran ne nécessite lors de sa réalisation aucun positionnement entre les deux substrats (10, 22). Application à l'affichage d'images fixes ou animées. Trichrome microtip fluorescent screen made up of two facing substrates (10, 22). The first substrate (10) supports cathode conductors (12) provided with microtips (14), grids (16) and an insulating layer (18) separating them. The second substrate (22) supports three series of parallel conductive strips (26). The conductive strips (26) of each series are electrically connected to each other and covered with a luminescent material (28, 29, 30) in one of the three primary colors, red, green, blue. Each series of conductive strips (26) corresponds to an anode (A1, A2, A3) red, green, blue. This screen does not require during its positioning any positioning between the two substrates (10, 22). Application to the display of still or moving images.

Inventors

  • 👤 Jean-Frédéric Clerc

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-30 16:16
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/02; H01J29/08; H01J29/085; H01J31/00; H01J31/08; H01J31/10; H01J31/12; H01J31/15; H04; H04N; H04N9/00; H04N9/12

Claims Analysis

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References Cited (Backward Citations)

DE3036219A1 Cited
FR2536889A1 Cited
EP0155895A1 Cited
EP0172089A1 Cited

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