Electro optical device including correction unit that generates correction data for image signal and electronic apparatus
Vertical cross-talk is reduced. A correction circuit includes a correction amount calculation unit that calculates a correction amount on the basis of input image data Din and that generates correction amount data U; a correction coefficient generation unit that generates correction coefficient data C which represents a correction coefficient decided upon in accordance with a position in a horizontal scanning direction of a data line to which input image data Din to be corrected is supplied; and a correction unit that corrects the input image data Din on the basis of the correction amount data U and the correction coefficient data C and thereby generates correction image data Dh.
1. An electro-optical device including a plurality of data lines arranged in a first direction and in which image signals are supplied to pixel circuits via the data lines, the electro-optical device comprising:
a correction amount calculation unit that calculates a correction amount on a basis of input image data and generates correction amount data;
a correction coefficient generation unit that generates correction coefficient data which represents a correction coefficient decided upon in accordance with positions of the data lines in the first direction to which the input image data to be corrected is supplied;
a correction unit that generates correction data on a basis of the correction amount data and the correction coefficient data, corrects the input image data on a basis of the correction data, and generates correction image data;
an image signal generation unit that generates an image signal on a basis of the correction image data;
a plurality of switches that are provided at position corresponding to intersections of image signal lines to which the image signals are supplied and the data lines, and sample the image signals to be provided to the plurality of data lines; and
a drive unit that supplies a precharge voltage to the plurality of data lines in a precharge time, and turns on the plurality of switches in a write time after the precharge time in a predetermined order,
wherein
the plurality of data lines are divided into a plurality of regions such that each region includes a same number of data lines,
the correction coefficient generation unit decides upon the correction coefficient data for each of the plurality of regions, and
the same number of the data lines in each region is decided upon so that a difference between the correction coefficient data of one of the regions and the correction coefficient data of a region next to the one of the region is a minimum resolution of the correction coefficient data.
2. The electro-optical device according to claim 1 ,
wherein the drive unit sequentially turns on the plurality of switches in the precharge time in one direction, and
the correction coefficient generation unit generates the correction coefficient data so that a level of the correction coefficient data changes at a fixed rate in the one direction.
3. The electro-optical device according to claim 1 ,
wherein the correction coefficient generation unit generates the correction coefficient data so that a level of the correction coefficient data corresponds to a length of time from when the precharge time ends to when the plurality of switches are turned on.
4. The electro-optical device according to claim 3 ,
wherein the correction coefficient generation unit generates the correction coefficient in accordance with a change in a difference between a voltage of the image signal and the precharge voltage during a period from when the precharge time ends to when the plurality of switches are turned on.
5. An electronic apparatus comprising the electro-optical device according to claim 1 .