Organic light emitting diode display

Patent metadata

Field	Value
Publication number	US-11302265-B2
Application number	US-202016737709-A
Country	US
Kind code	B2
Filing date	Jan 8, 2020
Priority date	Jan 11, 2019
Publication date	Apr 12, 2022
Grant date	Apr 12, 2022

Abstract

An organic light emitting diode display includes pixel groups disposed in parallel in a first direction and each including n1 pixel regions; driving voltage lines disposed between two adjacent pixel regions of the n1 pixel regions and extending in a second direction intersecting the first direction to apply a driving voltage to the two adjacent pixel regions; initializing voltage lines extending in the second direction to apply an initializing voltage to the pixel groups; data lines extending in the second direction to apply a data voltage to the pixel groups; first driving low-voltage lines extending in the second direction to apply a driving low voltage to the pixel groups; and a scan line extending in the first direction and intersecting the driving voltage lines, the initializing voltage lines, the data lines and the first driving low-voltage lines, where 3×n2 pixel groups are disposed between two adjacent first driving low-voltage lines.

First claim

What is claimed is:

1. An organic light emitting diode display, comprising:
a plurality of pixel groups disposed in parallel in a first direction, wherein each of the plurality of pixel groups includes n1 pixel regions, and n1 is a natural number;
a plurality of driving voltage lines disposed between two adjacent pixel regions of the n1 pixel regions and extending in a second direction intersecting the first direction to apply a driving voltage to the two adjacent pixel regions;
a plurality of initializing voltage lines extending in the second direction to apply an initializing voltage to the plurality of pixel groups;
a plurality of data lines extending in the second direction to apply a data voltage to the plurality of pixel groups;
a plurality of first driving low-voltage lines extending in the second direction to apply a driving low voltage to the plurality of pixel groups; and
a scan line extending in the first direction and intersecting the plurality of driving voltage lines, the plurality of initializing voltage lines, the plurality of data lines, and the plurality of first driving low-voltage lines,
wherein 3×n2 pixel groups among the plurality of pixel groups are disposed between two directly adjacent first driving low-voltage lines of the plurality of first driving low-voltage lines, and n2 is a natural number.

2. The organic light emitting diode display of claim 1 , further comprising:
a plurality of second driving low-voltage lines extending in the second direction to apply the driving low voltage to the plurality of pixel groups,
wherein a single pixel group of the plurality of pixel groups is disposed between two adjacent second driving low-voltage lines of the plurality of second driving low-voltage lines.

3. The organic light emitting diode display of claim 2 , wherein
the single pixel group of the plurality of pixel groups is disposed between two adjacent data lines of the plurality of data lines, and
the 3×n2 pixel groups are disposed between two adjacent initializing voltage lines of the plurality of initializing voltage lines.

4. The organic light emitting diode display of claim 3 , wherein
three pixel groups of the plurality of pixel groups are disposed between the two adjacent first driving low-voltage lines.

5. The organic light emitting diode display of claim 4 , further comprising:
a driving low voltage transmitting line extending in the first direction,
wherein the plurality of first driving low-voltage lines and the plurality of second driving low-voltage lines are electrically connected to the driving low voltage transmitting line.

6. The organic light emitting diode display of claim 1 , further comprising:
a plurality of openings is defined to overlap the plurality of first driving low-voltage lines.

7. The organic light emitting diode display of claim 6 , further comprising:
a cathode electrode electrically connected to the plurality of first driving low-voltage lines through the plurality of openings.

8. The organic light emitting diode display of claim 1 , wherein
the scan line includes two wires extending in the first direction and a bridge connecting the two wires to each other.

9. The organic light emitting diode display of claim 8 , wherein
the scan line includes a cut region in a portion where the two wires except for the bridge intersect one of the plurality of data lines.

10. The organic light emitting diode display of claim 1 , wherein
the plurality of pixel groups include at a pixel region including a thin film transistor, an anode electrode connected to the thin film transistor, and an organic light emitting layer disposed on the anode electrode.

11. An organic light emitting diode display, comprising:
a plurality of pixel groups disposed in parallel in a first direction, wherein each of the plurality of pixel groups includes n1 pixel regions, and n1 is a natural number;
a plurality of driving voltage lines disposed between two adjacent pixel regions of the n1 pixel regions and extending in a second direction intersecting the first direction to apply a driving voltage to the two adjacent pixel regions;
a plurality of initializing voltage lines extending in the second direction to apply an initializing voltage to the plurality of pixel groups;
a plurality of data lines extending in the second direction to apply a data voltage to the plurality of pixel groups;
a scan line including two wires extending in the first direction and a bridge connecting the two wires to each other; and
a plurality of first driving low-voltage lines extending in the second direction,
wherein two wires of the scan line intersect the plurality of driving voltage lines, the plurality of data lines, and the plurality of initializing voltage lines, and the bridge does not overlap any of the plurality of data lines, and
wherein 3×n2 pixel groups among the plurality of pixel groups are disposed between two directly adjacent first driving low-voltage lines of the plurality of first driving low-voltage lines, n2 is a natural number.

12. The organic light emitting diode display of claim 11 , further comprising:
a plurality of openings is defined to overlap the plurality of first driving low-voltage lines, and
the organic light emitting diode display further comprises a cathode electrode electrically connected to the plurality of first driving low-voltage lines through the plurality of openings.

13. The organic light emitting diode display of claim 11 , further comprising:
a plurality of second driving low-voltage lines extending in the second direction,
wherein a single pixel group of the plurality of pixel groups is disposed between two adjacent second driving low-voltage lines of the plurality of second driving low-voltage lines.

14. The organic light emitting diode display of claim 13 , wherein
three of the plurality of pixel groups are disposed between the two adjacent first driving low-voltage lines.

15. The organic light emitting diode display of claim 14 , further comprising:
a driving low voltage transmitting line extending in the first direction,
wherein the plurality of first driving low-voltage lines and the plurality of second driving low-voltage lines are electrically connected to the driving low voltage transmitting line.

16. The organic light emitting diode display of claim 11 , wherein
the bridge does not overlap any of the plurality of driving voltage lines and the plurality of initializing voltage lines.

17. An organic light emitting diode display, comprising:
a substrate;
a metal layer disposed on the substrate;
a semiconductor layer disposed on the metal layer;
a gate insulating layer covering the semiconductor layer;
a gate layer including a low-voltage gate connector and disposed on the gate insulating layer;
an interlayer insulating layer covering the gate layer;
a storage electrode and a data layer disposed on the interlayer insulating layer; and
a planarization layer covering the storage electrode and the data layer,
wherein the data layer includes a driving voltage line, a first driving low-voltage line, and a second driving low-voltage line, and
the first driving low-voltage line overlaps and is directly connected to the low-voltage gate connector.

18. The organic light emitting diode display of claim 17 , further comprising:
an anode electrode disposed on the planarization layer;
an organic light emitting layer disposed on the anode electrode; and
a cathode electrode disposed on the organic light emitting layer.

19. The o

Assignees

• Samsung Display Co Ltd

Inventors

• Lee Kye-Uk

Classifications

• G09G3/3275

  Details of drivers for data electrodes · CPC title

• G09G3/3266

  Details of drivers for scan electrodes · CPC title

• G09G3/3233

  with pixel circuitry controlling the current through the light-emitting element · CPC title

• G09G2320/0295

  by monitoring each display pixel · CPC title

• G09G3/3291 Primary

  in which the data driver supplies a variable data voltage for setting the current through, or the voltage across, the light-emitting elements · CPC title