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Patent classifications
G
PHYSICS
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G09
EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
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G09G
ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
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3/00
Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
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G09G3/20
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; no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
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G09G3/22
using controlled light sources
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G09G3/30
using electroluminescent panels
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G09G3/32
semiconductive, e.g. using light-emitting diodes [LED]
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G09G3/3208
organic, e.g. using organic light-emitting diodes [OLED]
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G09G3/3275
Details of drivers for data electrodes
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