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US 2010/0133988 A1Published application
An organic electroluminescent display having low data line capacitance
AssigneeSamsung Mobile Display Co., Ltd.
InventorYang-Wan Kim
Life of this patent
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Abstract
An organic electroluminescent display in which a power supply line for a power supply voltage is separated from data lines for data signals in a signal input portion is disclosed. The power supply line over the data lines is employed as a pixel electrode or a cathode to supply the power supply voltage. This arrangement decreases the parasitic capacitance between the two lines and reduces load on the data lines.
Claims20
An organic electroluminescent display, comprising:
- a substrate comprising a signal input portion configured to supply data signals and a power supply voltage to a plurality of pixels;
- a plurality of data lines arranged on a gate insulating layer formed on the substrate in the signal input portion;
- an interlayer-insulating layer formed over the plurality of data lines;
- a passivation layer formed on the interlayer-insulating layer over the plurality of data lines;
- a pixel electrode formed on the passivation layer over the plurality of data lines;
- and
- a pixel defining layer formed on the pixel electrode over the plurality of data lines,
- wherein the pixel electrode is configured to supply the power supply voltage to the plurality of pixels, and wherein the interlayer-insulating layer, the passivation layer and the pixel electrode overlap the data lines.
5 more elements
An organic electroluminescent display comprising:
- a substrate comprising a signal input portion configured to supply data signals and a power supply voltage to a plurality of pixels;
- a plurality of data lines arranged on the substrate in the signal input portion;
- an interlayer-insulating layer formed on the plurality of data lines;
- a passivation layer formed on the interlayer-insulating layer over the plurality of data lines;
- a pixel defining layer formed on the passivation layer over the plurality of data lines;
- and
- a cathode formed on the pixel defining layer over the plurality of data lines,
- wherein the cathode is configured to supply the power supply voltage to the plurality of pixels, and wherein the interlayer-insulating layer, the passivation layer and the pixel electrode overlap the data lines.
5 more elements
An organic electroluminescent display comprising:
- a substrate;
- a plurality of data lines arranged on the substrate, wherein the data lines are configured to supply data signals to the plurality of pixels;
- a passivation layer formed over the data lines;
- and
- a pixel electrode formed over the passivation layer and over the plurality of data lines, wherein the pixel electrode is configured to supply a power supply voltage to each of the plurality of pixels,
- wherein the passivation layer and the pixel electrode overlap the data lines.
3 more elements
Dependencies are inferred from the claim text.