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US 9,870,738 B2Granted
Display device, method of driving display device, and electronic apparatus
AssigneeJoled Inc.
InventorsKoichi Maeyama, Teppei Isobe
Life of this patent
Estimating the term…
Abstract
A display device includes: a display section that has pixels; and a driving section that drives the display section on the basis of luminance information including a plurality of sub-luminance information pieces. The driving section drives the pixels in a time-division manner on the basis of each sub-luminance information piece during a single display period or a plurality of display periods which is set in each sub-luminance information piece. One or both of a timing of start of each display period and the number of the display periods are changeable.
Claims13
A display device comprising:
- a display section including a plurality of pixels;
- a driving section that drives the display section on the basis of luminance information including a plurality of sub-luminance information pieces;
- and
- a sub-frame generation circuitry configured to generate a first sub-frame image and a second sub-frame image respectively corresponding to first and second sub-luminance information pieces, wherein a range of a value of the luminance information is divided into a plurality of grayscale ranges corresponding to the respective sub-luminance information pieces, the first sub-frame image corresponding to a low grayscale range that is equal to or less than a threshold value and the second sub-frame image corresponding to a high grayscale range that is greater than the threshold value,
- wherein the sub-luminance information pieces are each a luminance information component in the corresponding one of the grayscale images,
- wherein the driving section drives the pixels in a time-division manner to drive the display section using the first and second sub-frame images that are generated on the basis of each the respective sub-luminance information pieces during at least first, second and third display periods, with a first quenching period separating the first and second display periods and a second quenching period separating the second and third display periods, the first, second and third display periods being respectively set in each sub-luminance information piece,
- wherein the driving section sets the third display period of the first sub-luminance information piece adjacent to the first display period of the second sub-luminance information piece, and the driving section sets the third display period of the second sub-luminance information piece adjacent to the first display period of the first sub-luminance information piece, and
- wherein one or more of a timing of start and end of each display period and the number of the display periods are changeable.
5 more elements
A display device comprising:
- a display section including a plurality of pixels;
- a light emitting section;
- and
- a driving section that drives the display section and the light emitting section on the basis of luminance information including a plurality of sub-luminance information pieces;
- and
- a sub-frame generation circuitry configured to generate a first sub-frame image and a second sub-frame image respectively corresponding to first and second sub-luminance information pieces, wherein a range of a value of the luminance information is divided into a plurality of grayscale ranges corresponding to the respective sub-luminance information pieces, the first sub-frame image corresponding to a low grayscale range that is equal to or less than a threshold value and the second sub-frame image corresponding to a high grayscale range that is greater than the threshold value,
- wherein the sub-luminance information pieces are each a luminance information component in the corresponding one of the grayscale images,
- wherein the driving section drives the pixels in a time-division manner to drive the display section using the first and second sub-frame images that are generated on the basis of each the respective sub-luminance information pieces, and drives the light emitting section during at least first, second and third light emitting periods, with a first quenching period separating the first and second light emitting periods and a second quenching period separating the second and third light emitting periods, the first, second and third light emitting periods being respectively set in each sub-luminance information piece,
- wherein the driving section sets the third light emitting period of the first sub-luminance information piece adjacent to the first light emitting period of the second sub-luminance information piece, and the driving section sets the third light emitting period of the second sub-luminance information piece adjacent to the first light emitting period of the first sub-luminance information piece, and
- wherein one or more of a timing of start and end of each light emitting period and the number of the light emitting periods are changeable.
7 more elements
A method of driving a display device that includes a display section including a plurality of pixels and a driving section that drives the display section on the basis of luminance information including a plurality of sub-luminance information pieces, the method comprising:
- generating, by a sub-frame generation section, a first sub-frame image and a second sub-frame image corresponding to respective sub-luminance information pieces, wherein a range of a value of the luminance information is divided into grayscale ranges corresponding to the respective sub-luminance information pieces, the first sub-frame image corresponding to a low grayscale range that is equal to or less than a threshold value and the second sub-frame image corresponding to a high grayscale range that is greater than the threshold value;
- and
- driving, by the driving section, the pixels in a time-division manner to drive the display section using the first and second sub-frame images that are generated on the basis of the respective sub-luminance information pieces during at least first, second and third display periods, with a first quenching period separating the first and second display periods and a second quenching period separating the second and third display periods, the first, second and third display periods being respectively set in each sub-luminance information piece,
- wherein the driving section sets a third display period, set in the first sub-luminance information piece, adjacent to a first display period, set in the second sub-luminance information piece, and the driving section sets a third display period, set in the second sub-luminance information piece, adjacent to a first display period, set in the first sub-luminance information piece, and
- wherein one or more of a timing of start and end of each display period and the number of the display periods are changeable.
2 more elements
Dependencies are inferred from the claim text.