Electro-optic device, electronic apparatus, and method for driving electro-optic device

摘要

An electro-optic device has electro-optic elements; a storage units storing a first table including pairs of a gray-scale value and an a-bit sub-field code and a second table including pairs of a gray-scale value and a b-bit (b>a) sub-field code; a converting unit converting the gray-scale value of an object pixel into the sub-field code using the second table when a difference in gray-scale value between a first image and a second image is less than a threshold value, while converting the gray-scale value of the object pixel into the sub-field code using the first table when the difference in gray-scale value between the first image and the second image is the threshold value or more; and a driving unit supplying a signal corresponding to the sub-field code converted by the converting unit to drive the electro-optic elements.

主权项

1. An electro-optic device comprising:
a plurality of electro-optic elements each of which expresses a gray scale corresponding to a supplied signal; a storage unit which stores a first table and a second table, the first table including a plurality of pairs of a gray-scale value and a sub-field code indicating a combination of ON and OFF for a sub-fields, the second table including a plurality of pairs of a gray-scale value and a sub-field code indicating a combination of ON and OFF for b (b>a) sub-fields; an input unit which receives a video signal including a first image and a second image each expressed by the gray-scale values of a plurality of pixels, the video signal indicating a plurality of images divided into frames; a converting unit which converts, for object pixels as objects in the plurality of pixels, the gray-scale value of the object pixel into the sub-field code using the second table when a difference in gray-scale value between the first image and the second image is less than a threshold value, while converting the gray-scale value of the object pixel into the sub-field code using the first table when the difference in gray-scale value between the first image and the second image is the threshold value or more; and a driving unit which supplies, in each of a plurality of sub-fields obtained by dividing a period for displaying an image of one frame, a signal corresponding to the sub-field code converted by the converting unit to drive the plurality of electro-optic elements.