Multi-line addressing methods and apparatus

Details Multi-line addressing methods and apparatus Multi-line addressing methods and apparatus

2011-05-17

2011-05-17

Nguyen, Chanh (Department: 2629)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

C345S082000

Reexamination Certificate

active

07944410

ABSTRACT:
This invention relates to methods and apparatus for driving electroluminescent, in particular organic light emitting diodes (OLED) displays using multi-line addressing (MLA) techniques. Embodiments of the invention are particularly suitable for use with so-called passive matrix OLED displays. A current generator for an electroluminescent display driver, the current generator including; a first, reference current input to receive a reference current; a second, ratioed current input to receive a ratioed current; a first ratio control input to receive a first control signal input; a controllable current mirror having a control input coupled to the first ratio control input, a current input coupled to the reference current input, and an output coupled to the ratioed current input; the current generator being configured such that a signal and the control input controls a ratio of the ratioed current to the reference current.

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