← Back to Patent Explorer
EP0073701A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Smectic liquid crystal display device

Assignee: Thales SA
•
Filing: 1982-08-03
•
Granted: —
•
Expires: 2002-08-03
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract Translated from French L'invention se rapporte aux dispositifs de visualisation à accès matriciel utilisant un effet mixte thermique et électrique. L'invention a pour objet un dispositif de visualisation à commande mixte thermo-électrique mettant en oeuvre un cristal liquide smectique (1) dépourvu de phase nématique par l'adjonction de dopants appropriés. L'invention s'applique notamment à l'affichage, à la reproduction et à la projection d'images. The invention relates to display devices with matrix access using a mixed thermal and electrical effect. The subject of the invention is a display device with mixed thermoelectric control using a smectic liquid crystal (1) devoid of nematic phase by the addition of appropriate dopants. The invention is particularly applicable to the display, reproduction and projection of images.

Inventors

  • 👤 Serge Le Berre
  • 👤 Michel Hareng
  • 👤 Annie Beguin
  • 👤 Lydia Thirant

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-01 22:09
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/132; C; C09; C09K; C09K19/00; C09K19/52; C09K19/58

Claims Analysis

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

References Cited (Backward Citations)

FR2373076A1 Cited

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