公开(公告)号：DE3469618D1

公开(公告)日：1988-04-07

申请号：DE3469618

申请日：1984-11-15

Applicant: IBM

Inventor： LARSEN THOR ARNE ,  MARTIN DAVID HUGH ,  MOTH FRANK TIMOTHY

IPC: G09F9/30 ,  G02F1/163 ,  G09G3/38 ,  G09G3/34 ,  G02F1/17

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：DE2815062A1

公开(公告)日：1978-11-02

申请号：DE2815062

申请日：1978-04-07

Applicant: IBM

Inventor： BARCLAY DONALD JOHN ,  BIRD COLIN LEONARD ,  LOWE ANTONY CYRIL ,  MARTIN DAVID HUGH

IPC: G09G3/38 ,  G02F1/15 ,  G02F1/155 ,  G09F9/30 ,  G02F1/17

公开(公告)号：DE2965126D1

公开(公告)日：1983-05-11

申请号：DE2965126

申请日：1979-02-23

Applicant: IBM

Inventor： BARCLAY DONALD JOHN ,  BIRD COLIN LEONARD ,  MARTIN DAVID HUGH ,  MORGAN WILLIAM MORRIS

IPC: G09F9/30 ,  G02F1/155 ,  G02F1/163 ,  G09G3/19 ,  G02F1/17

Abstract: An electrochromic display, preferably employing an organic electrochromic material such as heptyl viologen, has display electrodes with a rough surface in contact with the electrochromic material, and is operated at a current density such that the diffusion depth of the material conforms to the contours of the electrodes.

公开(公告)号：DE2756763A1

公开(公告)日：1978-06-29

申请号：DE2756763

申请日：1977-12-20

Applicant: IBM

Inventor： BARCLAY DONALD JOHN ,  BIRD COLIN LEONARD ,  HALLETT MICHAEL HENRY ,  MARTIN DAVID HUGH

IPC: H04N5/66 ,  G02F1/163 ,  G09F9/30 ,  G09G3/38

Abstract: According to the disclosure, electrochromic display apparatus is provided, comprising, an electrolyte containing an electrochromic material, a plurality of display electrodes in the electrolyte, the display electrodes being connected in at least one group to enable selection of display electrodes, means for selecting at least some display electrodes, means to effect deposition of a visible coating of colored species derived from the electrochromic material onto the selected display electrodes, and means to effect deposition of an invisible coating of the colored species onto all unselected display electrodes, whereby the potentials of selected and unselected display electrodes are equalized.

公开(公告)号：DE2751870A1

公开(公告)日：1978-06-22

申请号：DE2751870

申请日：1977-11-21

Applicant: IBM

Inventor： BARCLAY DONALD JOHN ,  MARTIN DAVID HUGH

IPC: G02F1/163 ,  G09G3/38 ,  G09F9/30

公开(公告)号：AU541333B2

公开(公告)日：1985-01-03

申请号：AU7209581

申请日：1981-06-23

Applicant: IBM

Inventor： MARTIN DAVID HUGH

IPC: G01D7/00 ,  G02F1/15 ,  G02F1/155 ,  G02F1/163 ,  G09F9/30 ,  G09G3/16 ,  G09G3/38 ,  G02F1/133 ,  G02F1/17

公开(公告)号：CH633645A5

公开(公告)日：1982-12-15

申请号：CH1512677

申请日：1977-12-09

Applicant: IBM

Inventor： BARCLAY DONALD JOHN ,  BIRD COLIN LEONARD ,  HALLETT MICHAEL HENRY ,  MARTIN DAVID HUGH

IPC: H04N5/66 ,  G02F1/163 ,  G09F9/30 ,  G09G3/38 ,  G09G3/04

公开(公告)号：AU3157177A

公开(公告)日：1979-06-21

申请号：AU3157177

申请日：1977-12-14

Applicant: IBM

Inventor： BARCLAY DONALD JOHN ,  BIRD COLIN LEONARD ,  HALLETT MICHAEL HENRY ,  MARTIN DAVID HUGH

IPC: H04N5/66 ,  G02F1/163 ,  G09F9/30 ,  G09G3/38

Abstract: According to the disclosure, electrochromic display apparatus is provided, comprising, an electrolyte containing an electrochromic material, a plurality of display electrodes in the electrolyte, the display electrodes being connected in at least one group to enable selection of display electrodes, means for selecting at least some display electrodes, means to effect deposition of a visible coating of colored species derived from the electrochromic material onto the selected display electrodes, and means to effect deposition of an invisible coating of the colored species onto all unselected display electrodes, whereby the potentials of selected and unselected display electrodes are equalized.

公开(公告)号：DE2306994A1

公开(公告)日：1973-11-15

申请号：DE2306994

申请日：1973-02-13

Applicant: IBM

Inventor： BHATIA HARSARAN SINGH ,  DAVIS DONALD EUGENE ,  MARTIN DAVID HUGH

IPC: G11C11/41 ,  G11C5/00 ,  H02J1/00 ,  H03K5/02 ,  H03K17/66 ,  H03K19/086

公开(公告)号：DE3373557D1

公开(公告)日：1987-10-15

申请号：DE3373557

申请日：1983-06-30

Applicant: IBM

Inventor： MARTIN DAVID HUGH ,  SPANNER RAYMOND ARTHUR

IPC: G02F1/163 ,  G09G3/34 ,  G09G3/38 ,  G02F1/17

Abstract: Completion of potentiostatic erasure of an electrochromic display is detected by monitoring the erase current supplied to addressed display electrodes by potentiostatic erase drive means. The occurrence of a fall in erase current, corresponding to completion of the erasure of the addressed display electrodes, is detected, preferably by a threshold detector, and an erase completion indication produced. This indication effects disconnection of the erase current path.