Method of controlling electro-optical device, control device for electro-optical device, electro-optical device, and electronic apparatus
View Patent ↗A method of controlling an electro-optical device includes controlling a driving section such that, when an image is rewritten from a first image displayed in a first gradation to a second image including a background image portion to be displayed in the first gradation and a main image portion to be displayed in a second gradation, the same potential as a counter electrode is supplied to a pixel in the background image portion, and a potential corresponding to the second gradation is supplied to a pixel in the main image portion. The driving section is controlled such that at least one of the magnitude and application time of a voltage applied between the pixel electrode and the counter electrode is smaller in a pixel corresponding to an edge portion in the main image portion than in a pixel corresponding to a non-edge portion in the main image portion.
1. A method of controlling an electro-optical device including a display section which has a plurality of pixels each having an electro-optical material between a pixel electrode and a counter electrode arranged to be opposite each other, and a driving section which supplies a data potential to the pixel electrode of each of the plurality of pixels, the method comprising:
controlling the driving section such that, when an image displayed in the display section is rewritten from a first image displayed in a first gray level to a second image including a background image portion to be displayed in the first gray level and a main image portion to be displayed in a second gray level different from the first gray level, a voltage that is the same as a voltage supplied to the counter electrode is supplied to the pixel electrode of the pixel corresponding to the background image portion as the data potential and a voltage corresponding to the second gray level is supplied to the pixel electrode of the pixel corresponding to the main image portion as the data potential,
wherein
the main image portion of the second image includes
an edge portion, and
a non-edge portion, the non-edge portion excluding the edge portion, and
in the controlling of the driving section when the image displayed in the display section is rewritten from the first image to the second image, the driving section is controlled such that at least one of a magnitude and an application time of the voltage supplied to the pixel electrode is smaller in the pixel corresponding to the edge portion than in the pixel corresponding to the non-edge portion.
2. The method according to claim 1 ,
wherein the second gray level has a plurality of gray levels, and
in the controlling of the driving section, at least one value of the magnitude and the application time of the voltage supplied to the pixel electrode in the pixel corresponding to the edge portion is determined on the basis of a gray level difference between a gray level to be displayed in the pixel corresponding to the edge portion and the first gray level.
3. The method according to claim 1 , wherein
the second gray level has a plurality of gray levels, and
in the controlling of the driving section, at least one value of the magnitude and the application time of the voltage supplied to the pixel electrode in the pixel corresponding to the edge portion is determined on the basis of a gray level to be displayed in the pixel corresponding to the edge portion and the first gray level.
4. A control device for an electro-optical device including a display section which has a plurality of pixels each having an electro-optical material between a pixel electrode and a counter electrode arranged to be opposite each other, and a driving section which supplies a data potential to the pixel electrode of each of the plurality of pixels, the control device comprising:
a control unit which controls the driving section such that, when an image displayed in the display section is rewritten from a first image displayed in a first gray level to a second image including a background image portion to be displayed in the first gray level and a main image portion to be displayed in a second gray level different from the first gray level, a voltage that is the same as a voltage supplied to the counter electrode is supplied to the pixel electrode of the pixel corresponding to the background image portion as the data potential and a voltage corresponding to the second gray level is supplied to the pixel electrode of the pixel corresponding to the main image portion as the data potential,
wherein
the control unit controls the driving section when the image displayed in the display section is rewritten from the first image to the second image such that at least one of a magnitude and an application time of the voltage supplied to the pixel electrode is smaller in the pixel corresponding to an edge portion in the main image portion than in the pixel corresponding to a non-edge portion excluding the edge portion in the main image portion.
5. An electro-optical device comprising:
the control device for an electro-optical device according to claim 4 .
6. An electronic apparatus comprising:
the electro-optical device according to claim 5 .