Organic light-emitting display panel and organic light-emitting display device
View Patent ↗An organic light-emitting display device/panel includes, in part, at least a red organic light-emitting element, a green organic light-emitting element and a blue organic light-emitting element. The organic light-emitting display device/panel optionally includes a white organic light-emitting element. The organic light-emitting display device/panel further includes, in part, a first power line coupled to the red organic light-emitting element, a second power line coupled to the green organic light-emitting element, and a third power line coupled to the blue organic light-emitting element. The power supplies a high voltage level to the organic light-emitting elements.
1. An organic light-emitting display panel, comprising:
a plurality of organic light-emitting elements, comprising a red organic light-emitting element, a green organic light-emitting element and a blue organic light-emitting element; and
a first power line supplying a first current to the red organic light-emitting element, a second power line supplying a second current to the green organic light-emitting element, and a third power line supplying a third current to the blue organic light-emitting element,
wherein the first power line, the second power line, and the third power line each have different line resistances, and line resistances of the first and second power lines are smaller than a line resistance of the third power line.
2. The organic light-emitting display panel of claim 1 , wherein the first power line, the second power line, and the third power line have different line widths, or have different layer thicknesses, or have different resistivity.
3. The organic light-emitting display panel of claim 1 , wherein the first current ranges from 54.85 mA to 77.96 mA, the second current ranges from 73.25 mA to 78.14 mA, and the third current ranges from 83.33 mA to 112.96 mA, when the organic light-emitting display panel displays a white screen with a peak luminance.
4. The organic light-emitting display panel of claim 1 , wherein the line resistance of the first power line is 0.699 to 0.709 times as the line resistance of the third power line, and the line resistance of the second power line is 0.741 to 0.763 times of the line resistance of the third power line.
5. The organic light-emitting display panel of claim 4 , wherein the first, second, and third power lines have the same resistivity and the same line width, the layer thickness of the first power line is 1.41 to 1.43 times of the layer thickness of the third power line, and the layer thickness of the second power line is 1.31 to 1.35 times of the layer thickness of the third power line.
6. The organic light-emitting display panel of claim 4 , wherein the first, second, and third power lines have the same resistivity and the same layer thickness, the line width of the first power line is 1.41 to 1.43 times of the line width of the third power line, and the line width of the second power line is 1.31 to 1.35 times of the line width of the third power line.
7. The organic light-emitting display panel of claim 4 , wherein the first, second, and third power lines have the same layer thickness and the same line width, the resistivity of the first power line is 0.699 to 0.709 times of the resistivity of the third power line, and the resistivity of the second power line is 0.741 to 0.763 times of the resistivity of the third power line.
8. The organic light-emitting display panel of claim 7 , wherein the power line connected to the red organic light-emitting element, the power line connected to the green organic light-emitting element and the power line connected to the blue organic light-emitting element are each made from different materials.
9. The organic light-emitting display panel of claim 4 , wherein the power line connected to the red organic light-emitting element has a multi-layer structure.
10. The organic light-emitting display panel of claim 9 , wherein the first power line has a two-layer structure, which comprises a first layer identical to the third power line and a second layer made from metal or transparent conductive material, and the second layer is located above or below the first layer.
11. The organic light-emitting display panel of claim 4 , wherein the second power line has a multi-layer structure.
12. The organic light-emitting display panel of claim 11 , wherein the second power line has a two-layer structure, which comprises a first layer identical to the third power line and a second layer made from metal or transparent conductive material, and the second layer is located above or below the first layer.
13. The display panel of claim 1 , wherein the plurality of organic light-emitting elements further comprises a white organic light-emitting element.
14. An organic light-emitting display device, comprising:
an organic light-emitting display panel, the display panel comprising:
a plurality of organic light-emitting elements, comprising a red organic light-emitting element, a green organic light-emitting element and a blue organic light-emitting element; and
a first power line supplying a first current to the red organic light-emitting element, a second power line supplying a second current to the green organic light-emitting element, and a third power line supplying a third current to the blue organic light-emitting element,
wherein the first power line, the second power line, and the third power line each have different line resistances, and line resistances of the first and second power lines are smaller than a line resistance of the third power line.
15. The display device of claim 14 , wherein the plurality of organic light-emitting elements further comprises a white organic light-emitting element.