The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 11, 1989
Filed:
Nov. 03, 1987
Thierry Leroux, Fontaine, FR;
Robert Truche, Gieres, FR;
Commissariat A L'Energie Atomique, Paris, FR;
Abstract
A matrix display device applicable to liquid crystal displays comprises a display material having an optical property inserted between two insulating walls. On the inner face of one of the walls (1) are arranged n row conductors, m column conductors, p resistive conductors and p.k electrodes grouped into p=m.(n-1) packets of k electrodes each, the electrodes E.sub.1 . . . E.sub.k of one packet P.sub.ii'j being connected by switches I.sub.1 . . . I.sub.k to a column conductor C.sub.j and to a resistive conductor R.sub.ii'j, itself connected between two row conductors L.sub.i and L.sub.i', with i, i' and j being integers such that i.noteq.i', l.ltoreq.i<n, l<i.ltoreq.n and l.ltoreq.i.ltoreq.m. On the inner face of the other wall is placed a counterelectrode. A process for controlling the display device is also disclosed. The invention more particularly applies to liquid crystal display devices.