Electro-optical device, and electronic apparatus
An electro-optical device is provided that includes a pixel circuit disposed corresponding to each of intersections of a scanning line and eight signal lines, an image signal circuit, and a control circuit. The image signal circuit includes a write switch provided for each of the eight signal lines, and in a horizontal scanning period, an image signal is sequentially supplied to the eight signal lines in eight supply periods based on selection signals sequentially selecting eight writing switches. The control circuit controls the selection signals so that a time length of a supply period at a positive polarity time of an image signal is longer than a time length of a supply period at a negative polarity time.
1. An electro-optical device, comprising:
a scanning line;
K signal lines, K being an integer of 2 or greater;
a pixel circuit disposed corresponding to each of intersections of the scanning line and the K signal lines;
an image signal circuit including a sampling switch provided for each of the K signal lines, and configured to sequentially supply an image signal to the K signal lines, in K supply periods based on K selection signals for sequentially selecting the K sampling switches, in a horizontal scanning period; and
a control circuit configured to control the K selection signals such that a length of at least one supply period of the K supply periods in the horizontal scanning period changes in accordance with a polarity of the image signal, wherein
the control circuit controls the K selection signals such that end timing of a last supply period of the K supply periods in the horizontal scanning period changes in accordance with a polarity of the image signal.
2. The electro-optical device according to claim 1 , wherein
the sampling switch is an N-channel type transistor, and
at least one supply period when the image signal has a positive polarity is longer than the at least one supply period when the image signal has a negative polarity.
3. An electro-optical device, comprising:
a scanning line;
K signal lines, K being an integer of 2 or greater;
a pixel circuit disposed corresponding to each of intersections of the scanning line and the K signal lines;
an image signal circuit including a sampling switch provided for each of the K signal lines, and configured to sequentially supply an image signal to the K signal lines, in K supply periods based on K selection signals for sequentially selecting the K sampling switches, in a horizontal scanning period; and
a control circuit configured to control the K selection signals such that start timing of a first supply period of the K supply periods in the horizontal scanning period changes in accordance with a polarity of the image signal, wherein
the sampling switch is an N-channel type transistor, and
at least one supply period when the image signal has a positive polarity is longer than the at least one supply period when the image signal has a negative polarity.
4. The electro-optical device according to claim 1 , wherein
the sampling switch is an N-channel type transistor, and
the end timing when the image signal has a positive polarity is earlier than the end timing when the image signal has a negative polarity.
5. An electronic apparatus, comprising:
an electro-optical device, comprising: a main body;
a scanning line; K signal lines, K being an integer of 2 or greater;
a pixel circuit disposed corresponding to each of intersections of the scanning line and the K signal lines; an image signal circuit including a sampling switch provided for each of the K signal lines, and configured to sequentially supply an image signal to the K signal lines, in K supply periods based on K selection signals for sequentially selecting the K sampling switches, in a horizontal scanning period; and
a control circuit configured to control the K selection signals such that a length of at least one supply period of the K supply periods in the horizontal scanning period changes in accordance with a polarity of the image signal, wherein the control circuit controls the K selection signals such that end timing of a last supply period of the K supply periods in the horizontal scanning period changes in accordance with a polarity of the image signal.
6. An electro-optical device, comprising:
a scanning line;
K signal lines, K being an integer of 2 or greater;
a pixel circuit disposed corresponding to each of intersections of the scanning line and the K signal lines;
an image signal circuit including a sampling switch provided for each of the K signal lines, and configured to sequentially supply an image signal to the K signal lines, in K supply periods based on K selection signals for sequentially selecting the K sampling switches, in a horizontal scanning period; and
a control circuit configured to control the K selection signals such that a length of at least one supply period of the K supply periods in the horizontal scanning period changes in accordance with a polarity of the image signal, wherein
the sampling switch is an N-channel type transistor, and
at least one supply period when the image signal has a positive polarity is longer than the at least one supply period when the image signal has a negative polarity.