-
公开(公告)号：GB2152264A
公开(公告)日：1985-07-31
申请号：GB8334587
申请日：1983-12-29
Applicant: IBM
Inventor： MOTH FRANK TIMOTHY , MARTIN DAVID HUGH , LARSEN THOR ARNE
Abstract: An electrochromic matrix display of the kind in which the display electrodes are supported on a substrate above a corresponding matrix of transistor switches employs constant current writing and potentiostatic erasure. The transistors are switchable by signals applied on respective gate lines to pass electric current on the respective drive lines to their display electrodes. Gate and drive selection means define the active gate and drive lines. During erasure, the potentiostatic erase voltage is applied to both ends of the selected drive lines simultaneously to speed up the current limited asynchronous erase operation. Optionally, the display may be driven alternately from opposite ends of the drive lines during a line-by-line writing operation.
-
-
公开(公告)号：DE2966374D1
公开(公告)日：1983-12-08
申请号：DE2966374
申请日：1979-10-31
Applicant: IBM
Inventor： BARCLAY DONALD JOHN , LOWE ANTHONY CYRIL , MARTIN DAVID HUGH
Abstract: An electrochromic display device comprises a single counter electrode and a plurality of display electrodes. The counter electrode is charged and is maintained at a given potential by a donor electrode which transfers charge to the counter electrode in response to the action of a reference electrode. A potentiostat operates to supply current to the donor electrode in accordance with the potential of the counter electrode as sensed by the reference electrode. Both the donor electrode and the counter electrode are preferably of platinum black. The donor electrode is preferably arranged in the manner of a frame about the display area. The counter electrode is preferably grid-shaped.
-
-
-
Search Results
14
records
(took 0.033 seconds)
