DIFF Subgroup
G09G 3/28 using luminous gas-discharge panels, e.g. plasma panels
Introduced: January 1980
Full Title
Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes > for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix > using controlled light sources > using luminous gas-discharge panels, e.g. plasma panels
Of 5 combined children, 4 exist in both systems.
1 codes are CPC-only extensions.
IPC defines codes here since 2000.
Child Classifications
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- G09G 3/2807 with discharge activated by high-frequency signals specially adapted therefor since 2013 IPC+CPC Available in IPC and CPC
- G09G 3/2813 using alternating current [AC] - direct current [DC] hybrid-type panels since 2013 IPC+CPC Available in IPC and CPC