Organic light emitting diode display
First Claim
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1. An organic light emitting diode display comprising:
- a substrate;
a substrate insulating layer on the substrate;
a capacitor on the substrate insulating layer;
a driving thin film transistor including a driving gate electrode connected to the capacitor; and
an organic light emitting element connected to the driving thin film transistor,wherein the capacitor comprises;
a first capacitor electrode on the substrate insulating layer;
a second capacitor electrode on the first capacitor electrode;
a capacitor insulating layer between the first capacitor electrode and the second capacitor electrode and contacting the first capacitor electrode and the second capacitor electrode, the capacitor insulating layer having a higher dielectric constant than the substrate insulating layer; and
an auxiliary electrode contacting at least one of the first capacitor electrode or the second capacitor electrode,wherein the auxiliary electrode comprises;
a first auxiliary electrode contacting the first capacitor electrode, and disposed vertically between the substrate insulating layer and the first capacitor electrode;
a second auxiliary electrode contacting the second capacitor electrode, and disposed vertically between the second capacitor electrode and a third auxiliary electrode; and
the third auxiliary electrode on the second auxiliary electrode and contacting the second auxiliary electrode.
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Abstract
An organic light emitting diode display includes: a substrate; a substrate insulating layer on the substrate; a capacitor on the substrate insulating layer; a driving thin film transistor including a driving gate electrode connected to the capacitor; and an organic light emitting element connected to the driving thin film transistor, where the capacitor includes: a first capacitor electrode on the substrate insulating layer; a second capacitor electrode on the first capacitor electrode; a capacitor insulating layer between the first capacitor electrode and the second capacitor electrode and contacting the first capacitor electrode and the second capacitor electrode, the capacitor insulating layer having a higher dielectric constant than the substrate insulating layer; and an auxiliary electrode contacting at least one of the first capacitor electrode or the second capacitor electrode.
5 Citations
8 Claims
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1. An organic light emitting diode display comprising:
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a substrate; a substrate insulating layer on the substrate; a capacitor on the substrate insulating layer; a driving thin film transistor including a driving gate electrode connected to the capacitor; and an organic light emitting element connected to the driving thin film transistor, wherein the capacitor comprises; a first capacitor electrode on the substrate insulating layer; a second capacitor electrode on the first capacitor electrode; a capacitor insulating layer between the first capacitor electrode and the second capacitor electrode and contacting the first capacitor electrode and the second capacitor electrode, the capacitor insulating layer having a higher dielectric constant than the substrate insulating layer; and an auxiliary electrode contacting at least one of the first capacitor electrode or the second capacitor electrode, wherein the auxiliary electrode comprises; a first auxiliary electrode contacting the first capacitor electrode, and disposed vertically between the substrate insulating layer and the first capacitor electrode; a second auxiliary electrode contacting the second capacitor electrode, and disposed vertically between the second capacitor electrode and a third auxiliary electrode; and the third auxiliary electrode on the second auxiliary electrode and contacting the second auxiliary electrode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Current AssigneeSamsung Display Company Limited (Samsung Electronics Co. Ltd.)
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Original AssigneeSamsung Display Company Limited (Samsung Electronics Co. Ltd.)
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InventorsIm, Choong-Youl, Lee, Il-Jeong, Kwon, Do-Hyun, Yoon, Ju-Won, Ko, Moo-Soon, Woo, Min-Woo
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Primary Examiner(s)Fan, Bo
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Application NumberUS15/088,445Publication NumberTime in Patent Office739 DaysField of Search349 46, 345207US Class CurrentCPC Class CodesH01L 28/40 CapacitorsH01L 28/60 ElectrodesH01L 29/4908 for thin film semiconductor...H01L 2924/00 Indexing scheme for arrange...H01L 2924/0002 Not covered by any one of g...H10K 50/80 Constructional detailsH10K 59/1213 the pixel elements being TFTsH10K 59/1216 the pixel elements being ca...H10K 59/123 Connection of the pixel ele...
