Reduced reflectance display devices containing a thin-layer metal-organic mixed layer (MOML)
First Claim
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1. A display device comprising:
- an anode;
a cathode;
a luminescent region disposed between said anode and said cathode;
the luminescent region optionally comprising an organic electroluminescent material; and
a light-reflection-reduction region comprising three metal-organic mixed layers (MOMLs) each comprising a different concentration level of i) a metal containing material, and ii) an organic material, the three metal-organic mixed layers having the same metal containing material and the same organic material, wherein said light-reflection-reduction region has a thickness of from 30 nm to 50 nm, and each metal-organic mixed layer has a thickness of from 1 nm to 45 nm.
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Abstract
A display device comprising a thin metal-organic mixed layer (MOML) comprising a metal (containing material) and an organic material, and having a thickness of less than 175 nm. A thin metal-organic mixed layer may be of a single or multi-layer configuration. The percent reflectance of a device may be controlled by varying the thickness of the MOML(s) and the metal component and concentration thereof in the MOML(s).
122 Citations
25 Claims
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1. A display device comprising:
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an anode; a cathode; a luminescent region disposed between said anode and said cathode;
the luminescent region optionally comprising an organic electroluminescent material; anda light-reflection-reduction region comprising three metal-organic mixed layers (MOMLs) each comprising a different concentration level of i) a metal containing material, and ii) an organic material, the three metal-organic mixed layers having the same metal containing material and the same organic material, wherein said light-reflection-reduction region has a thickness of from 30 nm to 50 nm, and each metal-organic mixed layer has a thickness of from 1 nm to 45 nm. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A display device comprising:
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a first electrode; a second electrode; a luminescent region disposed between said first and second electrodes;
the luminescent region optionally comprising an organic electroluminescent material; anda light-reflection-reduction region comprising a plurality of metal-organic mixed layers, each metal-organic mixed layer comprising a different concentration levels of a metal and of an organic material, the metal-organic mixed layers having the same metal and the same organic material, wherein said light-reflection-reduction region has a thickness of from 30 nm to 50 nm, and wherein each metal-organic mixed layer has a thickness of from 1 nm to 45 nm. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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19. A display device comprising:
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(i) an anode; (ii) a luminescent region disposed on said anode;
the luminescent region optionally comprising an organic electroluminescent material;(iii) an optional layer comprising an electron injecting material disposed on said luminescent region; (iv) three metal-organic mixed layers (MOMLs) disposed on one of (i) said optional electron injection material; and
(ii) said luminescent region;
each metal-organic mixed layer comprising a different concentration of a Ag containing material and of an organic material, wherein the organic material is the same in all three metal-organic mixed layers, and wherein said Ag containing material is present in an amount of from about 5 to about 30 percent by volume in each metal-organic mixed layer and each metal-organic mixed layer has a thickness from 1 nm to 45 nm and,(v) a cathode. - View Dependent Claims (20, 21, 22, 23, 24, 25)
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Specification
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Current AssigneeLG Display Co., Ltd.
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Original AssigneeLG Display Co., Ltd.
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InventorsAziz, Hany, Coggan, Jennifer A., Stefanovic, Nemanja, Popovic, Zoran D.
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Primary Examiner(s)Patel; Nimeshkumar D
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Assistant Examiner(s)Perry; Anthony T
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Application NumberUS11/133,752Publication NumberTime in Patent Office1,943 DaysField of Search313/504, 313/506US Class Current313/506CPC Class CodesH10K 2102/351 ThicknessH10K 50/14 Carrier transporting layersH10K 50/17 Carrier injection layersH10K 50/171 Electron injection layersH10K 50/826 Multilayers, e.g. opaque mu...H10K 50/865 comprising light absorbing ...H10K 59/80523 Multilayers, e.g. opaque mu...H10K 59/8792 comprising light absorbing ...
