Display panel and display device including the same
The present disclosure relates to a display panel and a display device including the same, wherein each of the pixels includes a sub-pixel of first color, including a first-first sub-pixel and a first-second sub-pixel; a sub-pixel of second color, including a second-first sub-pixel and a second-second sub-pixel; and a sub-pixel of third color, including a third-first sub-pixel and a third-second sub-pixel. Gate lines include a first EM line which connected to the sub-pixel of first color and to which a first light emission signal is applied; and a second EM line which is connected to the sub-pixel of second color and to which a second light emission signal is applied.
1 . A display panel comprising:
a plurality of data lines;
a plurality of gate lines intersecting the plurality of data lines, the plurality of gate lines including a first emission line to which a first light emission signal is applied and a second emission line to which a second light emission signal is applied;
a plurality of power lines; and
a plurality of pixels connected to the plurality of data lines, the plurality of gate lines, and the plurality of power lines,
wherein each of the plurality of pixels includes:
a sub-pixel of a first color that includes a primary first sub-pixel and a secondary first sub-pixel;
a sub-pixel of a second color that includes a primary second sub-pixel and a secondary second sub-pixel; and
a sub-pixel of a third color that includes a primary third sub-pixel and a secondary third sub-pixel,
wherein the first emission line is connected to the sub-pixel of the first color and the second emission line is connected to the sub-pixel of the second color,
wherein during a first frame period:
the first light emission signal at a first duty ratio is applied to the secondary first sub-pixel; and
the second light emission signal at a second duty ratio is applied to the secondary second sub-pixel, the first duty ratio different from the second duty ratio,
wherein during a second frame period that is subsequent to the first frame period:
the first light emission signal at the first duty ratio is applied to the primary first sub-pixel; and
the second light emission signal at the second duty ratio is applied to the primary second sub-pixel, each of the first duty ratio and the second duty ratio being less than a full duty cycle.
2 . The display panel of claim 1 , wherein the second emission line is connected to the sub-pixel of the second color and the sub-pixel of the third color.
3 . The display panel of claim 2 , wherein:
the primary first sub-pixel and the secondary first sub-pixel are connected to a first data line from the plurality of data lines or are connected to different first data lines from the plurality of data lines,
the primary second sub-pixel and the secondary second sub-pixel are connected to a second data line from the plurality of data lines or are connected to different second data lines from the plurality of data lines, and
the primary third sub-pixel and the secondary third sub-pixel are connected to a third data line from the plurality of data lines or are connected to different third data lines from the plurality of data lines.
4 . The display panel of claim 3 , wherein the plurality of gate lines further comprise:
a scan line to which a scan signal is applied, the scan line connected to the primary first sub-pixel, the secondary first sub-pixel, the primary second sub-pixel, the secondary second sub-pixel, the primary third sub-pixel, and the secondary third sub-pixel.
5 . The display panel of claim 3 , wherein the plurality of gate lines further comprise:
a first scan line configured to apply a first scan signal to the primary first sub-pixel, the primary second sub-pixel, and the primary third sub-pixel; and
a second scan line configured to apply a second scan signal to the secondary first sub-pixel, the secondary second sub-pixel, and the secondary third sub-pixel.
6 . The display panel of claim 3 , wherein the plurality of gate lines include:
a first group of gate lines connected to the primary first sub-pixel, the primary second sub-pixel, and the primary third sub-pixel; and
a second group of gate lines connected to the secondary first sub-pixel, the secondary second sub-pixel, and the secondary third sub-pixel, and
wherein the first group of gate lines includes a scan line configured to apply a scan signal to the primary first sub-pixel, the primary second sub-pixel, and the primary third sub-pixel, and
wherein the second group of gate lines includes a scan line configured to apply the scan signal to the secondary first sub-pixel, the secondary second sub-pixel, and the secondary third sub-pixel.
7 . The display panel of claim 6 , wherein the first group of gate lines includes:
a first scan line of the first group of gate lines that is configured to apply a first scan signal to the primary first sub-pixel, the primary second sub-pixel, and the primary third sub-pixel; and
a second scan line of the first group of gate lines that is configured to apply a second scan signal to the primary first sub-pixel, the primary second sub-pixel, and the primary third sub-pixel, and
wherein the second group of gate lines includes:
a first scan line of the second group of gate lines that is configured to apply the first scan signal to the secondary first sub-pixel, the secondary second sub-pixel, and the secondary third sub-pixel; and
a second scan line of the second group of gate lines that is configured to apply the second scan signal to the secondary first sub-pixel, the secondary second sub-pixel, and the secondary third sub-pixel.
8 . The display panel of claim 1 , wherein the plurality of gate lines further comprises:
a third emission line to which a third emission signal is applied, the third emission line connected to the sub-pixel of the third color.
9 . The display panel of claim 1 , wherein each of the primary first sub-pixel and the secondary first sub-pixel includes:
a light-emitting element; and
a driving transistor configured to drive the light-emitting element,
wherein a channel ratio of the driving transistor in the secondary first sub-pixel is smaller than a channel ratio of the driving transistor in the primary first sub-pixel.
10 . A display device comprising:
a display panel including a plurality of data lines, a plurality of gate lines, a plurality of power lines, and a plurality of pixels;
a data driver configured to output a data voltage to the plurality of data lines; and
a gate driver configured to output a gate signal to the plurality of gate lines, the plurality of gate lines including a first emission line to which a first light emission signal is applied and a second emission line to which a second light emission signal is applied,
wherein each of the plurality of pixels includes:
a sub-pixel of a first color that includes a primary first sub-pixel and a secondary first sub-pixel;
a sub-pixel of a second color that includes a primary second sub-pixel and a secondary second sub-pixel; and
a sub-pixel of a third color that includes a primary third sub-pixel and a secondary third sub-pixel,
wherein the first emission line is connected to the sub-pixel of the first color and the second emission line is connected to the sub-pixel of the second color,
wherein during a first frame period:
the first light emission signal at a first duty ratio is applied to the secondary first sub-pixel; and
the second light emission signal at a second duty ratio is applied to the secondary second sub-pixel, the first duty ratio different from the second duty ratio,
wherein during a second frame period that is subsequent to the first frame period:
the first light emission signal at the first duty ratio is applied to the primary first sub-pixel; and
the second light emission signal at the second duty ratio is applied to the primary second sub-pixel, each of the first duty ratio and the second duty ratio being less than a full duty cycle.
11 . The display device of claim 10 , wherein the second emission line is connected to the sub-pixel of the second color and the sub-pixel of the third color.
12 . The display device of claim 10 , wherein the plurality of gate lines further comprises:
a third light emission line to which a third light emission signal is applied, the third light emission line connected to the sub-pixel of the third color.
13 . The display device of claim 10 , wherein:
one of the primary first sub-pixel and the secondary first sub-pixel is driven while the other one of the primary first sub-pixel and the secondary first sub-pixel is not driven and the primary first sub-pixel and the secondary first sub-pixel are alternately driven at a cycle of a predetermined time period, or the primary first sub-pixel and the secondary first sub-pixel are driven simultaneously.
14 . The display device of claim 13 , wherein when one of the primary first sub-pixel and the secondary first sub-pixel is driven, pixel data of an input image is written to one of the primary first sub-pixel and the secondary first sub-pixel, and black grayscale data is written to the other one of the primary first sub-pixel and the secondary first sub-pixel.
15 . The display device of claim 10 , wherein:
during the first frame period, pixel data of a first frame image is written to the primary first sub-pixel, the primary second sub-pixel, and the primary third sub-pixel, and the second light emission signal is further applied to the secondary third sub-pixel such that the secondary first sub-pixel, the secondary second sub-pixel, and the secondary third sub-pixel each emit light, and
during the second frame period, pixel data of a second frame image is written to the secondary first sub-pixel, the secondary second sub-pixel, and the secondary third sub-pixel, and the second light emission signal is further applied to the primary third sub-pixel such that the primary first sub-pixel, the primary second sub-pixel, and the primary third sub-pixel each emit light.
16 . The display device of claim 10 , wherein each of the sub-pixel of the first color, the sub-pixel of the second color, and the sub-pixel of the third color includes:
a light-emitting element including an anode electrode to which a pixel driving voltage is applied;
a switch transistor to which a ground voltage is applied; and
a driving transistor connected to a cathode electrode of the light-emitting element and the switch transistor.
17 . The display device of claim 10 , wherein each of the sub-pixel of the first color, the sub-pixel of the second color, and the sub-pixel of the third color includes:
a light-emitting element including a cathode electrode to which a ground voltage is applied;
a driving transistor to which a pixel driving voltage is applied; and
a switch transistor connected to the driving transistor and an anode electrode of the light-emitting element.
18 . A display panel comprising:
a plurality of data lines;
a plurality of gate lines intersecting the plurality of data lines, the plurality of gate lines including a first emission line to which a first light emission signal is applied and a second emission line to which a second light emission signal is applied;
a plurality of pixels connected to the plurality of data lines and the plurality of gate lines,
wherein each of the plurality of pixels includes:
a sub-pixel of a first color that includes a primary first sub-pixel and a secondary first sub-pixel;
a sub-pixel of a second color that includes a primary second sub-pixel and a secondary second sub-pixel; and
a sub-pixel of a third color that includes a primary third sub-pixel and a secondary third sub-pixel,
wherein the first emission line is connected to the sub-pixel of the first color and the second emission line is connected to the sub-pixel of the second color,
wherein while a maximum possible voltage of a first data voltage is applied to the sub-pixel of the first color:
during a first frame period:
the first light emission signal at a first duty ratio is applied to the secondary first sub-pixel; and
the second light emission signal at a second duty ratio is applied to the secondary second sub-pixel, the first duty ratio different from the second duty ratio,
during a second frame period that is after the first frame period:
the first light emission signal at the first duty ratio is applied to the primary first sub-pixel; and
the second light emission signal at the second duty ratio is applied to the primary second sub-pixel,
wherein each of the first duty ratio and the second duty ratio is less than a full duty cycle,
wherein the maximum possible voltage of the first data voltage is greater than a maximum possible voltage applied to the sub-pixel of the second color and the sub-pixel of the third color.
19 . The display panel of claim 18 , wherein the second emission line is connected to the sub-pixel of the second color and the sub-pixel of the third color.
20 . The display panel of claim 19 , wherein:
the primary first sub-pixel and the secondary first sub-pixel are connected to a first data line from the plurality of data lines,
the primary second sub-pixel and the secondary second sub-pixel are connected to a second data line from the plurality of data lines,
the primary third sub-pixel and the secondary third sub-pixel are connected to a third data line from the plurality of data lines, and
the plurality of gate lines include a scan line that is connected to the primary first sub-pixel, the secondary first sub-pixel, the primary second sub-pixel, the secondary second sub-pixel, the primary third sub-pixel, and the secondary third sub-pixel.
21 . The display panel of claim 19 , wherein:
the primary first sub-pixel is connected to a first data line from the plurality of data lines and the secondary first sub-pixel is connected to a second data line from the plurality of data lines,
the primary second sub-pixel is connected to a third data line from the plurality of data lines and the secondary second sub-pixel is connected to the third data line,
the primary third sub-pixel and the secondary third sub-pixel are connected to a fourth data line from the plurality of data lines, and
the plurality of gate lines include a scan line that is connected to the primary first sub-pixel, the secondary first sub-pixel, the primary second sub-pixel, the secondary second sub-pixel, the primary third sub-pixel, and the secondary third sub-pixel.
22 . The display panel of claim 19 , wherein:
the primary first sub-pixel is connected to a first data line from the plurality of data lines and the secondary first sub-pixel is connected to a second data line from the plurality of data lines,
the primary second sub-pixel is connected to a third data line from the plurality of data lines and the secondary second sub-pixel is connected to a fourth data line from the plurality of data lines,
the primary third sub-pixel and the secondary third sub-pixel are connected to a fifth data line from the plurality of data lines, and
the plurality of gate lines include a scan line that is connected to the primary first sub-pixel, the secondary first sub-pixel, the primary second sub-pixel, the secondary second sub-pixel, the primary third sub-pixel, and the secondary third sub-pixel.
23 . The display panel of claim 19 , wherein:
the primary first sub-pixel is connected to a first data line from the plurality of data lines and the secondary first sub-pixel is connected to a second data line from the plurality of data lines,
the primary second sub-pixel is connected to a third data line from the plurality of data lines and the secondary second sub-pixel is connected to a fourth data line from the plurality of data lines,
the primary third sub-pixel is connected to a fifth data line from the plurality of data lines and the secondary third sub-pixel is connected to a sixth data line from the plurality of data lines, and
the plurality of gate lines include a scan line that is connected to the primary first sub-pixel, the secondary first sub-pixel, the primary second sub-pixel, the secondary second sub-pixel, the primary third sub-pixel, and the secondary third sub-pixel.
24 . The display panel of claim 19 , wherein:
the primary first sub-pixel and the secondary first sub-pixel are connected to a first data line from the plurality of data lines,
the primary second sub-pixel and the secondary second sub-pixel are connected to a second data line from the plurality of data lines,
the primary third sub-pixel and the secondary third sub-pixel are connected to a third data line from the plurality of data lines, and
the plurality of gate lines include a first scan line that is connected to the primary first sub-pixel, the primary second sub-pixel, and the primary third sub-pixel, and a second scan line that is connected to the secondary first sub-pixel, the secondary second sub-pixel, and the secondary third sub-pixel.
25 . The display panel of claim 19 , wherein:
the primary first sub-pixel is connected to a first data line from the plurality of data lines and the secondary first sub-pixel is connected to a second data line from the plurality of data lines,
the primary second sub-pixel is connected to a third data line from the plurality of data lines and the secondary second sub-pixel is connected to the third data line,
the primary third sub-pixel and the secondary third sub-pixel are connected to a fourth data line from the plurality of data lines, and
the plurality of gate lines include a first scan line that is connected to the primary first sub-pixel, the primary second sub-pixel, and the primary third sub-pixel, and a second scan line that is connected to the secondary first sub-pixel, the secondary second sub-pixel, and the secondary third sub-pixel.
26 . The display panel of claim 19 , wherein:
the primary first sub-pixel is connected to a first data line from the plurality of data lines and the secondary first sub-pixel is connected to a second data line from the plurality of data lines,
the primary second sub-pixel is connected to a third data line from the plurality of data lines and the secondary second sub-pixel is connected to a fourth data line from the plurality of data lines,
the primary third sub-pixel and the secondary third sub-pixel are connected to a fifth data line from the plurality of data lines, and
the plurality of gate lines include a first scan line that is connected to the primary first sub-pixel, the primary second sub-pixel, and the primary third sub-pixel, and a second scan line that is connected to the secondary first sub-pixel, the secondary second sub-pixel, and the secondary third sub-pixel.
27 . The display panel of claim 19 , wherein:
the primary first sub-pixel is connected to a first data line from the plurality of data lines and the secondary first sub-pixel is connected to a second data line from the plurality of data lines,
the primary second sub-pixel is connected to a third data line from the plurality of data lines and the secondary second sub-pixel is connected to a fourth data line from the plurality of data lines,
the primary third sub-pixel is connected to a fifth data line from the plurality of data lines and the secondary third sub-pixel is connected to a sixth data line from the plurality of data lines, and
the plurality of gate lines include a first scan line that is connected to the primary first sub-pixel, the primary second sub-pixel, and the primary third sub-pixel, and a second scan line that is connected to the secondary first sub-pixel, the secondary second sub-pixel, and the secondary third sub-pixel.
28 . The display panel of claim 18 , wherein the plurality of gate lines further comprises:
a third light emission line to which a third light emission signal is applied, the third light emission line connected to the sub-pixel of the third color.
29 . The display panel of claim 18 , wherein each of the primary first sub-pixel and the secondary first sub-pixel includes:
a light-emitting element; and
a driving transistor configured to drive the light-emitting element,
wherein a channel ratio of the driving transistor in the secondary first sub-pixel is smaller than a channel ratio of the driving transistor in the primary first sub-pixel.