公开(公告)号：US3596369A

公开(公告)日：1971-08-03

申请号：US3596369D

申请日：1969-12-22

Applicant: IBM

Inventor： DICKERSON JACK A ,  OTTAWAY GERALD H

IPC: G05F1/10 ,  H02M3/07 ,  H02M7/155 ,  H02M7/12

CPC classification number: H02M7/155 ,  H02M3/07

Abstract: A transformerless power supply is disclosed in which a source capacitor has its charge maintained at a fraction of the AC supply voltage and a plurality of sink capacitors are sequentially switched between a charging connection to the source capacitor and a discharging connection to a load circuit. The load circuit is isolated from the line at all times to maintain safety protection. The use of a comparatively high switching speed will reduce the filter requirements in the load circuit and this together with the elimination of the transformer results in very substantial size and weight reductions from conventional supplies. Voltage regulation at the load is achieved by controlling the voltage to which the sink capacitors are charged from the source capacitor.

公开(公告)号：US3023404A

公开(公告)日：1962-02-27

申请号：US70651357

申请日：1957-12-31

Applicant: IBM

Inventor： DICKERSON JACK A

IPC: G11B5/55

CPC classification number: G11B5/5591

公开(公告)号：US3134073A

公开(公告)日：1964-05-19

申请号：US7754960

申请日：1960-12-22

Applicant: IBM

Inventor： DICKERSON JACK A

IPC: G01R31/26

CPC classification number: G01R31/2632

公开(公告)号：CA909862A

公开(公告)日：1972-09-12

申请号：CA909862D

Applicant: IBM

Inventor： OTTAWAY GERALD H ,  DICKERSON JACK A

IPC: H02M3/07 ,  H02M7/12

公开(公告)号：CA1299787C

公开(公告)日：1992-04-28

申请号：CA568584

申请日：1988-06-03

Applicant: IBM

Inventor： DICKERSON JACK A ,  GREESON JAMES C JR ,  POLEY NEIL M

IPC: G09F9/35 ,  G02F1/1335 ,  G09G3/00

Abstract: TFT LCD DEVICE HAVING COLOR FILTER LAYER DECAL Decal technology is employed to provide a color filter layer for a thin film transistor liquid crystal display device. The red/green/blue color regions and an opaque surround are printed on a suitable substrate using gravure printing techniques and colored glass frit materials. Once the printed decal is transferred to one of the glass panels, it can be heated to fuse it to the glass. Electrodes can be deposited directly on this fused color filter layer.