Methods and apparatus for driving electro-optic displays
First Claim
Patent Images
1. A method for driving an electro-optic display having a plurality of pixels, each of which is capable of achieving at least two different gray levels, the method comprising:
- storing a base waveform defining a sequence of voltages to be applied to a pixel during a specific transition by the pixel between gray levels;
storing a multiplication factor, n, that is a natural number greater than one; and
effecting said specific transition by applying to said pixel a driving waveform-corresponding to n base waveforms.
1 Assignment
0 Petitions
Accused Products
Abstract
Waveforms for driving electro-optic displays, especially bistable electro-optic displays, are modified by one or more of insertion of at least one balanced pulse pair into a base waveform; excision of at least one balanced pulse pair from the base waveform; and insertion of at least one period of zero voltage into the base waveform. Such modifications permit fine control of gray levels.
-
Citations
4 Claims
-
1. A method for driving an electro-optic display having a plurality of pixels, each of which is capable of achieving at least two different gray levels, the method comprising:
-
storing a base waveform defining a sequence of voltages to be applied to a pixel during a specific transition by the pixel between gray levels; storing a multiplication factor, n, that is a natural number greater than one; and effecting said specific transition by applying to said pixel a driving waveform-corresponding to n base waveforms. - View Dependent Claims (2, 3, 4)
-
Specification