G PHYSICS
G09 EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
G09G ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
2300/00 Aspects of the constitution of display devices
G09G2300/04 Structural and physical details of display devices
G09G2300/0421 Structural details of the set of electrodes
G09G2300/043 Compensation electrodes or other additional electrodes in matrix displays related to distortions or compensation signals, e.g. for modifying TFT threshold voltage in column driver