Self-luminous display panel driving method, self-luminous display panel and electronic apparatus
View Patent ↗A self-luminous display panel driving method for driving a self-luminous display panel of the active matrix driving type, includes the step of executing threshold value correction operation for a driving transistor divisionally in a plurality of periods within at least one of which, after a point of time of an end of a preceding correction period till a point of time of a start of a succeeding correction period, a potential to be applied to the drain electrode of the driving transistor is controlled to an intermediate potential between a first potential for lighting driving of the driving transistor and a second potential for initialization applied within a preparation period of the first one of the correction periods.
1. A display apparatus comprising:
a pixel circuit including a driving transistor, a light emitting element, a sampling transistor, and a capacitor configured to hold an image signal provided through the sampling transistor in a given writing cycle, the driving transistor including a drain electrode and being configured to supply drain current corresponding to the image signal held in the capacitor to the light emitting element, wherein a correction operation for a characteristic of the drive transistor is performed for the given writing cycle; and
a driving circuit configured to control a potential to be applied to the drain electrode of the driving transistor to an intermediate potential within a suspension period of the correction operation, the intermediate potential being between a first potential for lighting the light emitting element and a second potential for initialization of the light emitting element, the suspension period being between a first correction period of the correction operation and a second correction period of the correction operation.
2. The display apparatus according to claim 1 , wherein the intermediate potential is equal to a mid-point potential between the first potential and the second potential.
3. The display apparatus according to claim 1 , wherein applying the intermediate potential to the drain electrode is started simultaneously with a point of time of an end of the first correction period.
4. The display apparatus according to claim 1 , wherein applying the intermediate potential to the drain electrode is stopped at a timing at which a gate potential of the driving transistor is changed to a reference potential for threshold value correction before a point of time of a start of the second correction operation.
5. A display apparatus comprising:
a pixel circuit including a driving transistor, a light emitting element, a sampling transistor, and a capacitor configured to hold an image signal provided through the sampling transistor in a given writing cycle, the driving transistor including a drain electrode and being configured to supply drain current corresponding to the image signal held in the capacitor to the light emitting element, wherein a correction operation for a characteristic of the drive transistor is performed for the given writing cycle; and
a driving circuit configured to switch a potential to be applied to the drain electrode of the driving transistor to an intermediate potential within a suspension period of the correction operation, the intermediate potential being between a first potential for lighting the light emitting element and a second potential for initialization of the light emitting element, the suspension period being between a first correction period of the correction operation and a second correction period of the correction operation.
6. The display apparatus according to claim 5 , wherein the intermediate potential is equal to a mid-point potential between the first potential and the second potential.
7. An electronic device comprising the display apparatus according to claim 1 .
8. The electronic device according to claim 7 , wherein the intermediate potential is equal to a mid-point potential between the first potential and the second potential.
9. The electronic device according to claim 7 , wherein applying the intermediate potential to the drain electrode is started simultaneously with a point of time of an end of the first correction period.
10. The electronic device according to claim 7 , wherein applying the intermediate potential to the drain electrode is stopped at a timing at which a gate potential of the driving transistor is changed to a reference potential for threshold value correction before a point of time of a start of the second correction operation.