| US 7,537,947 B2 | ||
| Optoelectronic displays | ||
| Euan Christopher Smith, Cambridge (United Kingdom); Alec Gordon Gunner, Horseheath (United Kingdom); and Jonathan J. M. Halls, Cambridge (United Kingdom) | ||
| Assigned to Cambridge Display Technology Limited, Cambridgeshire (United Kingdom) | ||
| Appl. No. 10/488,419 PCT Filed Aug. 29, 2002, PCT No. PCT/GB02/03935 § 371(c)(1), (2), (4) Date Aug. 26, 2004, PCT Pub. No. WO03/021340, PCT Pub. Date Mar. 13, 2003. |
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| Claims priority of application No. 0121077.2 (GB), filed on Aug. 30, 2001. | ||
| Prior Publication US 2004/0263045 A1, Dec. 30, 2004 | ||
| Int. Cl. H01L 21/00 (2006.01) | ||
| U.S. Cl. 438—29 [438/28; 257/59; 257/72; 257/88; 257/98; 257/103] | 78 Claims |
| 1. A method of displaying information using photoluminescence quenching, the method comprising:
providing an optoelectronic display comprising a photoluminescent material between a pair of electrodes;
providing illumination for the photoluminescent material to cause the photoluminescent material to photoluminesce; and
biassing the electrodes to at least partially quench said photoluminescence, the photoluminescent material having a normally-on,
photoluminescence emissive state under zero bias across the electrodes.
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