Driving method for electro-optical device, driving circuit therefor, electro-optical device, and electronic apparatus
AssigneeSeiko Epson Corporation
InventorAkihiko Ito
Life of this patent
Estimating the term…
Abstract
To reduce the data transfer rate in one subfield while suppressing display nonuniformity, a pixel positioned corresponding to each intersection between a plurality of scanning lines and a plurality of data lines is turned on or off in subfields sf1 to sf17, into which one field (1f) is divided, according to weighting of gray scale data (dcba) indicating the gray scale level of that pixel, and the reference time of weighting for the gray scale data is shifted every scanning line and every subfield.
Claims8
A driving method for an electro-optical device, comprising:
- turning on or off a pixel by a subfield, which is an unit obtained by dividing one field into subfields, according to weighting of gray scale data indicating the gray scale level of the pixel, the pixel being arranged corresponding to each intersection between a plurality of scanning lines and a plurality of data lines;
- and
- causing a reference time of weighting for the gray scale data to be shifted every scanning line and every subfield.
A driving circuit for an electro-optical device, wherein a pixel is turned on or off by a subfield, which is a unit obtained by dividing one field into subfields, according to weighting of gray scale data indicating the gray scale level of the pixel, the pixel being arranged corresponding to each intersection between a plurality of scanning lines and a plurality of data lines, and a reference time of weighting for the gray scale data is shifted every scanning line and every subfield, the driving circuit comprising:
- a scanning line driving circuit for selecting the scanning line in which the reference time of weighting has arrived in a predetermined order in each subfield;
- and
- a data line driving circuit for supplying data to the pixel that intersects the scanning line selected by the scanning line driving circuit via the corresponding data line, the data indicating that the pixel is turned on or off.
An electro-optical device, wherein a pixel includes a switching element arranged corresponding to each intersection between a plurality of scanning lines and a plurality of data lines, and a pixel electrode connected to the switching element, the pixel being turned on or off by the subfield, which is a unit obtained by dividing one field into subfields, according to weighting of gray scale data indicating the gray scale level of the pixel, and a reference time of weighting for the gray scale data is shifted every scanning line and every subfield, the electro-optical device comprising:
- a scanning line driving circuit for selecting the scanning line in which the reference time of weighting has arrived in a predetermined order in each subfield;
- and
- a data line driving circuit for supplying data to the pixel that intersects the scanning line selected by the scanning line driving circuit via the corresponding data line, the data indicating that the pixel is turned on or off.
Dependencies are inferred from the claim text.