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US 2002/0163298 A1Published application
Organic el element
AssigneeNippon Seiki Co., Ltd.
InventorsHitoshi Wakai, Jun-Ichi Maruyama, Hiroshi Ohkawa
Life of this patent
Estimating the term…
Abstract
An object is to provide an organic EL element which can realize the improvement in the difference of an emission luminance due to the difference of an emission rise time in a plurality of light emitting portions. Segment portions S for determining an emission in a specific shape and wiring portions L for separately supplying electric currents to the segment portions S are formed. An area of the wiring portion L of the segment portion S is enlarged such that an emission luminance in the segment portion S falls within a range of from a minimum luminance to a luminance 30% higher than that.
Claims8
An organic EL element comprising:
- a transparent electrode positioned on a non-emission surface of a translucent substrate;
- a luminous organic layer positioned on the transparent electrode;
- and
- a back electrode positioned on the organic layer and facing the transparent electrode, the transparent electrode forming a plurality of segment portions for determining an emission in a specific shape and a plurality of wiring portions for separately supplying electric currents to the respective segment portions,
- characterized in that an area of the wiring portion of the segment portion having a high emission luminance is enlarged such that the emission luminance of the segment portion falls within a range of from a minimum luminance in the segment portions to a luminance 30% higher than that.
2 more elements
An organic EL element comprising:
- a transparent electrode positioned on a non-emission surface of a translucent substrate;
- a luminous organic layer positioned on the transparent electrode;
- and
- a back electrode positioned on the organic layer and facing the transparent electrode, the transparent electrode forming a plurality of segment portions for determining an emission in a specific shape and a plurality of wiring portions for separately supplying electric currents to the respective segment portions,
- characterized in that the segments are arranged in a shape of a numeral 8, and the wiring portion of the segment portion having a high emission luminance is extended into an inside of a display of the numeral 8 of the segment portions to enlarge an area of the wiring portion such that the emission luminance of the segment portion falls within a range of from a minimum luminance in the segment portions to a luminance 30% higher than that.
2 more elements
An organic EL element comprising:
- a transparent electrode positioned on a non-emission surface of a translucent substrate;
- a luminous organic layer positioned on the transparent electrode;
- a back electrode positioned on the organic layer and facing the transparent electrode, the transparent electrode forming a plurality of segment portions for determining an emission in a specific shape and a plurality of wiring portions connected to a constant current source and for separately supplying electric currents to the respective segment portions;
- and
- an insulating layer formed between the wiring portions and the organic layer except for the light emitting shape,
- characterized in that the segments are arranged in a shape of a numeral 8, and the wiring portion of the segment portion having a high emission luminance is extended to a place inside a display of the numeral 8 of the segment portions and covered with the insulating layer to enlarge an area of the wiring portion such that the emission luminance of the segment portion falls within a range of from a minimum luminance in the segment portions to a luminance 30% higher than that.
3 more elements
An organic EL element comprising:
- a transparent electrode positioned on a non-emission surface of a translucent substrate;
- a luminous organic layer positioned on the transparent electrode;
- and
- a back electrode positioned on the organic layer and facing the transparent electrode, the transparent electrode forming a plurality of segment portions for determining an emission in a specific shape and a plurality of wiring portions for separately supplying electric currents to the respective segment portions,
- characterized in that a capacitance of the wiring portion of the segment portion having a high emission luminance is increased such that the emission luminance of the segment portion falls within a range of from a minimum luminance in the segment portions to a luminance 30% higher than that.
2 more elements
An organic EL element comprising:
- a transparent electrode positioned on a non-emission surface of a translucent substrate;
- a luminous organic layer positioned on the transparent electrode;
- and
- a back electrode positioned on the organic layer and facing the, transparent electrode, the transparent electrode forming a plurality of segment portions for determining an emission in a specific shape and a plurality of wiring portions for separately supplying electric currents to the respective segment portions,
- characterized in that an area of the wiring portion of the segment portion having a low emission luminance is decreased such that the emission luminance of the segment portion falls within a range of from a maximum luminance in the segment portions to a luminance 30% lower than that.
2 more elements
An organic EL element according to clam 6, characterized in that an insulating layer is positioned between the wiring portions of the transparent electrode and the organic layer.
An organic EL element comprising:
- a transparent electrode positioned on a non-emission surface of a translucent substrate;
- a luminous organic layer positioned on the transparent electrode;
- and
- a back electrode positioned on the organic layer and facing the transparent electrode, the transparent electrode forming a plurality of segment portions for determining an emission in a specific shape and a plurality of wiring portions for separately supplying electric currents to the respective segment portions,
- characterized in that a capacitance of the segment portion having a low emission luminance is decreased such that the emission luminance of the segment portion falls within a range of from a maximum luminance in the segment portions to a luminance 30% lower than that.
2 more elements
Dependencies are inferred from the claim text.