IPIQ

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]