Display device including demultiplexer outputting to different color pixel columns
A display device includes a display panel including a first pixel column in which first and third color pixels are alternately disposed, a second pixel column in which second color pixels are disposed, a third pixel column in which the third and first color pixels are alternately disposed, and a fourth pixel column in which the second color pixels are disposed. The display device further includes a scan driver applying a scan signal to scan lines, a data driver including a first source channel supplying a first color data signal and a second color data signal to a first data line, and a second source channel supplying the second color data signal and a third color data signal to a second data line, and a demultiplexer successively selecting the first and second sub-data lines during a period in which the scan signal is supplied to each scan line.
1 . A display device, comprising:
a display panel comprising a first pixel column in which first color pixels and third color pixels are alternately disposed in a listed order, a second pixel column in which second color pixels are disposed, a third pixel column in which the third color pixels and the first color pixels are alternately disposed in a listed order, a fourth pixel column in which the second color pixels are disposed, and a fifth pixel column in which the first color pixels and the third color pixels are alternately disposed in a listed order;
a scan driver configured to successively apply a scan signal having a gate-on voltage to scan lines connected to the first color pixels, the second color pixels, and the third color pixels;
a data driver comprising a first source channel configured to supply a first color data signal corresponding to the first color pixels and a second color data signal corresponding to the second color pixels to a first data line, a second source channel configured to supply the second color data signal and a third color data signal corresponding to the third color pixels to a second data line, and a third source channel configured to supply the first color data signal to a third data line; and
a demultiplexer connected both to a plurality of first sub-data lines connected to the first color pixels or the third color pixels, and to a plurality of second sub-data lines connected to the second color pixels, and configured to successively select the first sub-data lines and the second sub-data lines during a period in which the scan signal having a gate-on level is supplied to each scan line,
wherein the first sub-data lines comprise a 1-1-th sub-data line connected to the first color pixels in the first pixel column, a 1-2-th sub-data line connected to the third color pixels in the first and third pixel columns, and a 1-3-th sub-data line connected to the first color pixels in the third and fifth pixel columns,
wherein each of the first color pixels disposed in an odd-numbered pixel row comprises a first anode and a first connection portion electrically connecting the first anode and a pixel circuit of the corresponding first color pixel,
wherein each of the first color pixels disposed in an even-numbered pixel row comprises a second anode and a second connection portion electrically connecting the second anode and a pixel circuit of the corresponding first color pixel, and
wherein a length of the first connection portion differs from a length of the second connection portion.
2 . The display device according to claim 1 , wherein the length of the first connection portion is shorter than the length of the second connection portion.
3 . The display device according to claim 1 , wherein each of the third color pixels disposed in the odd-numbered pixel row comprises a third anode and a third connection portion electrically connecting the third anode and a pixel circuit of the corresponding third color pixel,
wherein each of the third color pixels disposed in the even-numbered pixel row comprises a fourth anode and a fourth connection portion electrically connecting the fourth anode and a pixel circuit of the corresponding third color pixel, and
wherein a length of the third connection portion differs from a length of the fourth connection portion.
4 . The display device according to claim 3 , wherein the length of the third connection portion is shorter than the length of the fourth connection portion.
5 . The display device according to claim 1 , wherein the demultiplexer repeatedly selects the first sub-data lines and the second sub-data lines on a scan line basis.
6 . The display device according to claim 1 , wherein the 1-1-th and 1-3-th sub-data lines are supplied with only the first color data signal, the 1-2-th sub-data line is supplied with only the third color data signal.
7 . The display device according to claim 1 , wherein the second sub-data lines comprise a 2-1-th sub-data line connected to the second color pixels disposed in the second pixel column, and a 2-2-th sub-data line connected to the second color pixels disposed in the fourth pixel column.
8 . The display device according to claim 7 , wherein the 2-1-th and 2-2-th sub-data lines are supplied with only the second color data signal.
9 . The display device according to claim 7 , wherein the demultiplexer comprises:
a plurality of first select transistors disposed between the first data line and the 1-1-th sub-data line, between the second data line and the 1-2-th sub-data line, and between the third data line and the 1-3-th sub-data line; and
a plurality of second select transistors disposed between the first data line and the 2-1-th sub-data line and between the second data line and the 2-2-th sub-data line.
10 . The display device according to claim 9 , wherein, when the display panel express a red pattern,
the first select transistor disposed between the first data line and the 1-1-th sub-data line among the plurality of first select transistors is turned on and the first source channel supplies the first color data signal to the 1-1-th sub-data line, and
the first select transistor between the third data line and the 1-3-th sub-data line among the plurality of first select transistors is turned on and the third source channel supplies the first color data signal to the 1-3-th sub-data line.
11 . The display device according to claim 9 , wherein, when the display panel express a green pattern,
the second select transistor disposed between the first data line and the 2-1-th sub-data line among the plurality of second select transistors is turned on and the first source channel supplies the second color data signal to the 2-1-th sub-data line, and
the second select transistor between the second data line and the 2-2-th sub-data line among the plurality of second select transistors is turned on and the second source channel supplies the second color data signal to the 2-2-th sub-data line.
12 . The display device according to claim 9 , wherein, when the display panel express a blue pattern,
the first select transistor disposed between the second data line and the 1-2-th sub-data line among the plurality of first select transistors is turned on and the second source channel supplies the third color data signal to the 1-2-th sub-data line.
13 . The display device according to claim 1 , wherein each of the second color pixels disposed in the odd-numbered pixel row comprises a fifth anode and a fifth connection portion electrically connecting the fifth anode and a pixel circuit of the corresponding second color pixel,
wherein each of the second color pixels disposed in the even-numbered pixel row comprises a sixth anode and a sixth connection portion electrically connecting the sixth anode and a pixel circuit of the corresponding second color pixel, and
wherein a length of the fifth connection portion is the same as a length of the sixth connection portion.
14 . The display device according to claim 1 , wherein a color of the first color pixels is red, a color of the second color pixels is green, and a color of the third color pixels is blue.