Organic light-emitting display device

1. A top-emission organic light-emitting display device comprising:

a plurality of pixels each having color filters, wherein each of the plurality of pixels comprises a first sub-pixel, a second sub-pixel, a third sub-pixel, and a fourth sub-pixel;

first to fourth switching transistors configured to switch the first sub-pixel, the second sub-pixel, the third sub-pixel and the fourth sub-pixel, respectively; and

first to fourth driving transistors configured to drive the first sub-pixel, the second sub-pixel, the third sub-pixel and the fourth sub-pixel, respectively,

wherein the first sub-pixel, the second sub-pixel, the third sub-pixel, and the fourth sub-pixel are arranged sequentially in a column direction,

wherein each of the first sub-pixel, the second sub-pixel, the third sub-pixel, and the fourth sub-pixel extends in a row direction rather than in the column direction,

wherein each of the first sub-pixel, the second sub-pixel, the third sub-pixel, and the fourth sub-pixel comprises a first electrode extended in the row direction rather than in the column direction and correspond to the first sub-pixel, the second sub-pixel, the third sub-pixel, and the fourth sub-pixel, respectively, and

wherein the first switching transistor, the second switching transistor, the first driving transistor and the second driving transistor overlap the first electrode of the second sub-pixel, and the third switching transistor, the fourth switching transistor, the third driving transistor and the fourth driving transistor overlap the first electrode of the third sub-pixel.

2. The device of claim 1 , further comprising:

a gate line extended in the row direction,

wherein the gate line is between the second sub-pixel and the third sub-pixel.

3. The device of claim 2 , wherein the first sub-pixel and the second sub-pixel are switched via respective gate electrodes extended from the gate line toward the first sub-pixel.

4. The device of claim 3 , further comprising:

a first power supply extended in the column direction and configured to supply driving signals to the first driving transistor and the second driving transistor.

5. The device of claim 4 , wherein the first electrode of the first sub-pixel is electrically connected to the first driving transistor in the second sub-pixel.

6. The device of claim 2 , wherein the third sub-pixel and the fourth sub-pixel are switched via respective gate electrodes extended from the gate line toward the fourth sub-pixel.

7. The device of claim 6 , further comprising:

a second power supply line extended in the column direction and configured to supply driving signals to the third driving transistor and the fourth driving transistor.

8. The device of claim 7 , wherein the first electrode of the fourth sub-pixel is electrically connected to the fourth driving transistor in the third sub-pixel.

9. The device of claim 2 , further comprising:

first to fourth data lines extended in the column direction,

wherein the first data line supplies a signal to the first sub-pixel, the second data line supplies a signal to the second sub-pixel, the third data line supplies a signal to the third sub-pixel, and the fourth data line supplies a signal to the fourth sub-pixel.

10. The device of claim 9 , further comprising:

a third power supply line between the second data line and the third data line.

11. The device of claim 1 , wherein the first electrodes of the first sub-pixel, the second sub-pixel, the third sub-pixel and the fourth sub-pixel are connected to the respective driving transistors via contact holes, and wherein the contact holes are disposed in different rows.

12. The device of claim 1 , wherein each of the first sub-pixel, the second sub-pixel, the third sub-pixel and the fourth sub-pixel is associated with one of the color filters to represent red, green, blue or white.

13. A top-emission organic light-emitting display device comprising a plurality of pixels each having color filters,

wherein each of the plurality of pixels includes one gate line extended in a row direction and four data lines extended in a column direction, and the plurality of pixels include a first pixel and a second pixel that is disposed adjacent to the first pixel in the row direction,

wherein each of the first pixel and the second pixel comprises a first sub-pixel, a second sub-pixel, a third sub-pixel, and a fourth sub-pixel, each of the first sub-pixel, the second sub-pixel, the third sub-pixel, and the fourth sub-pixel of each of the plurality of pixels comprises a first electrode extended in the row direction and not in the column direction,

wherein the first sub-pixel, the second sub-pixel, the third sub-pixel and the fourth sub-pixel of each of the plurality of pixels are arranged in horizontal stripes and are extended in a row direction rather than in a column direction, and each of the sub-pixels of the first pixel and the second pixel adjacent to each other in the row direction represents light of a same color, to reduce light leakage in a horizontal direction due to a misalignment between a bank and a black matrix compared with pixels arranged in vertical stripes,

wherein each of the first pixel and the second pixel comprises first to fourth switching transistors configured to switch the first sub-pixel, the second sub-pixel, the third sub-pixel, and the fourth sub-pixel, respectively, and first to fourth driving transistors configured to drive the first sub-pixel, the second sub-pixel, the third sub-pixel, and the fourth sub-pixel, respectively, and

wherein the first switching transistor, the second switching transistor, the first driving transistor, and the second driving transistor overlap the first electrode of the second sub-pixel, and the third switching transistor, the fourth switching transistor, the third driving transistor, and the fourth driving transistor overlap the first electrode of the third sub-pixel.

14. The device of claim 13 ,

wherein the first electrode of the first sub-pixel included in the first pixel is adjacent to the first electrode of the first sub-pixel included in the second pixel with the bank therebetween, the first electrode of the second sub-pixel included in the first pixel is adjacent to the first electrode of the second sub-pixel included in the second pixel with the bank therebetween, the first electrode of a the third sub-pixel included in the first pixel is adjacent to the first electrode of the third sub-pixel included in the second pixel with the bank therebetween, the first electrode of the fourth sub-pixel included in the first pixel is adjacent to the first electrode of the fourth sub-pixel included in the second pixel with the bank therebetween, and each pair of the sub-pixels adjacent to each other represents light of the same color.

15. The device of claim 14 , wherein a red color filter of the first sub-pixel included in the first pixel is adjacent to a red color filter of the first sub-pixel included in the second pixel with the black matrix therebetween, a green color filter of the second sub-pixel included in the first pixel is adjacent to a green color filter of the second sub-pixel included in the second pixel with the black matrix therebetween, a blue color filter of the third sub-pixel included in the first pixel is adjacent to a blue color filter of the third sub-pixel included in the second pixel with the black matrix therebetween, and a white color filter of the fourth sub-pixel included in the first pixel is adjacent to a white color filter of the fourth sub-pixel included in the second pixel with the black matrix therebetween.