Display device, display method, and electronic system
A display method includes: performing display by driving a display pixel at a drive interval that conforms to a weight of each bit in a gray-scale code that includes the bits; and so correcting the drive interval, the gray-scale code, or both of the drive interval and the gray-scale code as to change a luminance of the display pixel smoothly.
1. A display device, comprising:
a display section including at least one display pixel;
a driving section configured to drive the display section at drive intervals,
each drive interval time width conforms to a weight of each bit in a gray-scale code, wherein the gray-scale code corresponds to a drive voltage of a pixel; and
a correcting section configured to
(a) divide a drive interval of one or more most significant bits into a plurality of divided drive intervals; and
(b) convert a first gray-scale code of the plurality of drive intervals and divided drive intervals which has a discontinuity with respect to luminance into a second gray-scale code which is monotonously continuous with respect to luminance and which has a range of gray-scale data of the first gray-scale code excluded from the second gray-scale code at the point of discontinuity.
2. The display device according to claim 1 , wherein the correcting section is configured to perform the division on more than one of the drive intervals.
3. The display device according to claim 2 , wherein the correcting section is configured to: perform the division on the drive interval that corresponds to a most significant bit in the first gray-scale code of the first bit length, or perform the division on the drive interval that corresponds to a bit counted by a predetermined amount from the most significant bit.
4. The display device according to claim 3 , wherein the correcting section is configured to convert the first gray-scale code of the first bit length into the second gray-scale code of the second bit length that includes bits of the first bit length in addition to a number of bits that is increased by a number of drive intervals increased by the division.
5. The display device according to claim 4 , wherein the correcting section is configured to generate values of the bits that correspond to the divided drive intervals and a value of the bit that is lower by one order than the bits that correspond to the divided drive intervals.
6. The display device according to claim 2 , wherein the correcting section is configured to maintain a sum of the drive intervals to be constant.
7. The display device according to claim 1 , wherein:
the correcting section is configured to divide the drive interval that corresponds to a most significant bit in the first gray-scale code of the first bit length, or divide the drive interval that corresponds to a bit counted from the most significant bit, and
the correcting section is configured to convert the first gray-scale code of the first bit length into the second gray-scale code of the second bit length, the second bit length being greater than the first bit length by a number of drive intervals increased by the division.
8. The display device according to claim 1 , wherein the exclusion of the range of the gray-scale data from the second gray-scale code effectively removes a discontinuity in luminance that is associated with the second gray-scale code.
9. A display method, comprising:
driving a display pixel at drive intervals that conforms to a weight of each bit in a gray-scale code, wherein the gray-scale code corresponds to a drive voltage of a pixel;
dividing the drive intervals of one or more most significant bits into a plurality of divided drive intervals; and
converting a first gray-scale code of the plurality of drive intervals and divided drive intervals into a second gray-scale code which is monotonously continuous with respect to luminance and which has a range of gray-scale data excluded from the second gray-scale code at the point of discontinuity.
10. The display method according to claim 9 , wherein the exclusion of the range of the gray-scale data from the second gray-scale code effectively removes a discontinuity in luminance that is associated with the second gray-scale code.
11. An electronic system, comprising:
a display device; and
a control section that controls the display device,
wherein, the display device includes:
(i) a display section including at least one display pixel,
(ii) a driving section configured to drive the display section at drive intervals that conforms to a weight of each bit in a gray-scale code, wherein the gray-scale code corresponds to a drive voltage of a pixel; and
(iii) a correcting section configured to:
(a) divide a drive interval of one or more most significant bits into a plurality of divided drive intervals and
(b) convert a first gray-scale code of the plurality of drive intervals and divided drive intervals into a second gray-scale code which is monotonously continuous with respect to luminance and which has a range of gray-scale data excluded from the second gray-scale code at the point of discontinuity.
12. The electronic system according to claim 11 , wherein the exclusion of the range of the gray-scale data from the second gray-scale code effectively removes a discontinuity in luminance that is associated with the second gray-scale code.