Patent EP0451820A2 successfully refreshed from Google Patents.
← Back to Patent Explorer
EP0451820A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Process for manufacturing a shock-resistant liquid crystal switch and display

Assignee: Hoechst AG
•
Filing: 1991-04-10
•
Granted: —
•
Expires: 2011-04-10
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract Translated from German Durch Zugabe von Coronanden oder Kryptanden zu FLC-Mischungen ist es möglich, das FLC-Material in eine homogene "bookshelf"- oder "quasibookshelf"-Geometrie zu bringen. Bei Verwendung einer derartigen FLC-Mischung können schockgeschädigte Displays durch kurzzeitige Behandlung mit einem elektrischen Feld regeneriert werden. <IMAGE> By adding coronands or cryptands to FLC mixtures, it is possible to bring the FLC material into a homogeneous "bookshelf" or "quasi-bookshelf" geometry. When using such an FLC mixture, shock-damaged displays can be regenerated by brief treatment with an electric field. <IMAGE>

Inventors

  • 👤 Claus Dr. Escher
  • 👤 Gerhard Dr. Illian
  • 👤 Norbert Dr. Rösch
  • 👤 Takamasa Harada

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-09 13:09
CPC Classifications
C; C09; C09K; C09K19/00; C09K19/52; C09K19/54; C09K19/56; G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/137; G02F1/139; G02F1/141

Claims Analysis

Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Maintenance schedule is calculated for granted US utility patents.

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag