EP 0087140 A3 19840523 - METHOD FOR REDUCING THE BACKGROUND LUMINOSITY IN THE LOWER IMAGE REGION OF A GAS-DISCHARGE DISPLAY PANEL
Title (en)
METHOD FOR REDUCING THE BACKGROUND LUMINOSITY IN THE LOWER IMAGE REGION OF A GAS-DISCHARGE DISPLAY PANEL
Publication
Application
Priority
DE 3206451 A 19820223
Abstract (en)
[origin: EP0087140A2] The invention relates to a method for reducing the background luminosity in the lower image region of a gas-discharge display panel. This method is intended to avoid reducing the display screen brightness. The invention provides that the plasma is sampled after the end of the image (lower image region) backwards with respect to the first cathode. The method according to the invention is used in the case of flat (plasma) image screens. <IMAGE>
IPC 1-7
IPC 8 full level
G09G 3/282 (2006.01); G09G 3/28 (2006.01); H01J 17/49 (2012.01)
CPC (source: EP)
G09G 3/282 (2013.01); H01J 17/498 (2013.01)
Citation (search report)
- [AD] DE 2643915 A1 19780330 - SIEMENS AG
- [A] EP 0031921 A1 19810715 - SIEMENS AG [DE]
Designated contracting state (EPC)
DE FR GB IT NL
DOCDB simple family (publication)
EP 0087140 A2 19830831; EP 0087140 A3 19840523; DE 3206451 A1 19830908; JP S58160991 A 19830924
DOCDB simple family (application)
EP 83101569 A 19830218; DE 3206451 A 19820223; JP 2749783 A 19830221