Global Patent Index - EP 1001660 A1

EP 1001660 A1 2000-05-17 - Electroluminescent device and manufacturing method thereof

Title (en)

Electroluminescent device and manufacturing method thereof

Title (de)

Elektrolumineszente Vorrichtung und Verfahren zu deren Herstellung

Title (fr)

Dispositif électroluminescent et méthode de fabrication de celui-ci

Publication

EP 1001660 A1 (EN)

Application

EP 98121383 A

Priority

EP 98121383 A

Abstract (en)

An electroluminescent (EL) device for displaying a full color image includes a substrate, e.g., made of glass, a thick-film EL layered structure including a blue light emitting thick-film EL layer, e.g., made of ZnS:Cu and a thin-film EL layered structure including a red light emitting thin-film EL layer, e.g., made of CaS:Eu. In the EL device, the thick-film EL layered structure is formed on either top or bottom of the substrate and the thin-film EL layered structure is formed either on top of the thick-film EL layered structure or on top of the substrate. In the EL device, a green light emitting EL layer is included either in the thick-film EL layered structure as a green light emitting thick-film EL layer, e.g., made of ZnS:Tb or ZnS:Cu, or in the thin-film EL layered structure as a green light emitting thin-film EL layer, e.g., made of ZnS:Tb. The EL device is capable of providing a blue light, a green light and a red light concurrently, each light having a commercially acceptable brightness level to thereby, allowing the EL device to display a full-color image having a commercially acceptable brightness level. <IMAGE>

IPC 1-7 (main, further and additional classification)

H05B 33/12; H05B 33/14

IPC 8 full level (invention and additional information)

H05B 33/12 (2006.01); H05B 33/14 (2006.01)

CPC (invention and additional information)

H05B 33/145 (2013.01); H05B 33/12 (2013.01)

Citation (search report)

Designated contracting state (EPC)

DE FR GB

EPO simple patent family

EP 1001660 A1 20000517

INPADOC legal status


2002-03-27 [18W] WITHDRAWN

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- Date of withdrawal: 20020128

2001-01-24 [AKX] PAYMENT OF DESIGNATION FEES

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2001-01-17 [17P] REQUEST FOR EXAMINATION FILED

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- Effective date: 20001116

2000-05-17 [AK] DESIGNATED CONTRACTING STATES:

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