Electrophoretic display with uniform image stability regardless of the initial optical states

A program storage device tangibly embodying a program of instructions executable by a machine to perform a method for providing respective voltage waveforms for driving respective portions of a bi-stable display, the method comprising:

• accessing data defining the respective voltage waveforms;
• and
• generating the respective voltage waveforms (700, 720, 740, 760;
• 800, 820, 840, 860;
• 900, 920, 940, 960;
• 1000, 1020, 1040, 1060) for driving the respective portions of the bi-stable display (310) according to the accessed data so that each of the respective voltage waveforms is used for driving the respective portion of the bi-stable display from a respective different initial optical state to a common final optical state, and each of the respective voltage waveforms includes at least a first re-addressing pulse (RP, RP1, RP2, RP3).

An electronic reading device, comprising:

• a bi-stable display (310);
• and
• a control (100) for providing respective voltage waveforms for driving respective portions of a bi-stable display to a common final optical state by:
• (a) accessing data defining the respective voltage waveforms, and (b) generating the respective voltage waveforms (700, 720, 740, 760;
• 800, 820, 840, 860;
• 900, 920, 940, 960;
• 1000, 1020, 1040, 1060) for driving the respective portions of the bi-stable display (310) according to the accessed data so that each of the respective voltage waveforms is used for driving the respective portion of the bi-stable display from a respective different initial optical state to a common final optical state, and each of the respective voltage waveforms includes at least a first re-addressing pulse (RP, RP1, RP2, RP3).