Display device
A display device prevents luminance unevenness that occurs in the case of inversion driving being performed, and performs high quality image display, while selectively scanning two lines of picture elements constituting a single pixel using a single gate wiring, as in the case of multi-primary color image display. The display device includes a display element including a pixel constituted by a plurality of picture elements disposed in two lines in a longitudinal direction and two or more columns in a lateral direction, a gate wiring common to the plurality of picture elements, and a source wiring that is arranged perpendicular or substantially perpendicular to the gate wiring and to perform image display using inversion driving in which an image display signal is provided to the picture elements connected to the gate wiring which is sequentially selected, at a different polarity than a polarity of an immediately previous frame, and an array of the picture elements in the pixel is determined so as to compensate for a change in luminance following the change in the effective value relative to the image display signal of the picture elements belonging to one line.
1. A display device comprising:
a display element including a plurality of pixels, each of the plurality of pixels being constituted by a plurality of picture elements, the plurality of picture elements of each of the plurality of pixels being arranged in two rows and arranged in two or more columns, at least one pair of the picture elements in a direction of the two or more columns are different colors from each other;
a gate wiring common to the plurality of picture elements; and
a source wiring arranged perpendicular or substantially perpendicular to the gate wiring and arranged to perform image display using inversion driving in which an image display signal is provided to the picture elements that are connected to the gate wiring which is sequentially selected, at a different polarity than a polarity of an immediately previous frame; wherein
an effective value relative to the image display signal of picture elements belonging to one of the two rows changes as a result of the inversion driving of picture elements constituting another pixel disposed longitudinally adjacent to the one row; and
an arrangement of the picture elements in each of the plurality of pixels is such that:
when a luminance of the picture elements belonging to the one of the two rows changes in a decreasing direction as a result of the inversion driving of the picture elements constituting the another pixel disposed longitudinally adjacent, a total value of an index representing a brightness of the picture elements belonging to the one of the two rows is larger than a total value of an index representing a brightness of the picture elements belonging to the another row; and
when the luminance of the picture elements belonging to the one of the two rows changes in an increasing direction as a result of the inversion driving of the picture elements constituting the another pixel disposed longitudinally adjacent, the total value of the index representing the brightness of the picture elements belonging to the one of the two rows is smaller than the total value of the index representing the brightness of the picture elements belonging to the another row.
2. The display device according to claim 1 , wherein the display element is a liquid crystal panel.
3. The display device according to claim 2 , wherein the liquid crystal panel is a transmissive panel, and further includes a backlight arranged to irradiate light that is transmitted by the liquid crystal panel.
4. The display device according to claim 3 , wherein when the liquid crystal panel is driven in a normally white mode, the effective value relative to the image display signal of picture elements belonging to one of the two rows increases as a result of the inversion driving of picture elements constituting another pixel disposed longitudinally adjacent to the one row, the total value of the index representing the brightness of picture elements belonging to the one row is larger than the total value of the index representing the brightness of picture elements belonging to the other of the two rows.
5. The display device according to claim 3 , wherein when the liquid crystal panel is driven in a normally white mode, the effective value relative to the image display signal of the picture elements belonging to one of the two rows decreases as a result of the inversion driving of the picture elements constituting another pixel disposed longitudinally adjacent to the one row, a total value of the index representing the brightness of the picture elements belonging to the one row is smaller than a total value of the index representing the brightness of the picture elements belonging to the other of the two rows.
6. The display device according to claim 3 , wherein when the liquid crystal panel is driven in a normally black mode, the effective value relative to the image display signal of the picture elements belonging to one of the two rows increases as a result of the inversion driving of the picture elements constituting another pixel disposed longitudinally adjacent to the one row, the total value of the index representing the brightness of the picture elements belonging to the one row is smaller than the total value of the index representing the brightness of the picture elements belonging to the other of the two rows.
7. The display device according to claim 3 , wherein when the liquid crystal panel is driven in a normally black mode, the effective value relative to the image display signal of the picture elements belonging to one of the two rows decreases as a result of the inversion driving of the picture elements constituting another pixel disposed longitudinally adjacent to the one row, the total value of the index representing the brightness of the picture elements belonging to the one row is larger than the total value of the index representing the brightness of the picture elements belonging to the other of the two rows.
8. The display device according to claim 1 , wherein the index representing the brightness of the picture elements is a Y value in an XYZ color system.
9. The display device according to claim 1 , wherein when the picture elements included in the row having a total value of the index representing the brightness of the picture elements that is relatively larger are cyan, magenta, and yellow, the picture elements included in the row having a total value of the index representing the brightness of the picture elements that is relatively smaller are red, green, and blue.
10. The display device according to claim 1 , wherein when the picture elements included in the row having a total value of the index representing the brightness of the picture elements that is relatively larger are cyan, green, and yellow, the picture elements included in the row having a total value of the index representing the brightness of the picture elements that is relatively smaller are red, magenta, and blue.
11. The display device according to claim 1 , wherein when the picture elements included in the row having a total value of the index representing the brightness of the picture elements that is relatively larger are magenta, red, and yellow, the picture elements included in the row having a total value of the index representing the brightness of the picture elements that is relatively smaller are green, cyan, and blue.
12. The display device according to claim 1 , wherein when the picture elements included in the row having a total value of the index representing the brightness of the picture elements that is relatively larger are green, yellow, and red, the picture elements included in the row having a total value of the index representing the brightness of the picture elements that is relatively smaller are, cyan, blue, and magenta.
13. The display device according to claim 1 , wherein when the picture elements included in the row having a total value of the index representing the brightness of the picture elements that is relatively larger are green and white, the picture elements included in the row having a total value of the index representing the brightness of the picture elements that is relatively smaller are red and blue.
14. The display device according to claim 1 , wherein in the plurality of pixels, a picture element of a color having a highest numeric value of the index representing the brightness of the picture elements and a picture element of a color having a second highest numeric value of the index are not lined up in the longitudinal direction.
15. The display device according to claim 1 , wherein in the plurality of pixels, a picture element of a color having a lowest numeric value of the index representing the brightness of the picture elements and a picture element of a color having a second lowest numeric value of the index are not lined up in the longitudinal direction.
16. The display device according to claim 1 , wherein the gate wiring is provided between the picture elements belonging to the one row constituting the pixel and the picture elements belonging to the other row, and a first source wiring connected only to the picture elements belonging to the one row and a second source wiring connected only to the picture elements belonging to the other row are arranged so as to sandwich each column of the pixel.