Global Patent Index - EP 1850311 A1

EP 1850311 A1 2007-10-31 - Light-emitting diode display

Title (en)

Light-emitting diode display

Title (de)

Lichtemittierende Diodenanzeige

Title (fr)

Affichage à diodes électroluminescentes

Publication

EP 1850311 A1 (EN)

Application

EP 06023243 A

Priority

CN 200620113631 U

Abstract (en)

A light-emitting diode (LED) display includes an LED, a light sensor, and at least one amplifier. The light sensor is on the same side as the LED to sense the ambient brightness, and produce a regulating current according to the sensed ambient brightness. At least one amplifier is electrically connected to the light sensor and the LED, and is adapted to amplify the regulating current, so that the amplified regulating current may be used to regulate the brightness of the LED.

IPC 8 full level (invention and additional information)

G09G 3/14 (2006.01)

CPC (invention and additional information)

G09G 3/14 (2013.01); G09G 2320/0626 (2013.01); G09G 2360/144 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

Designated extension state (EPC)

AL BA HR MK YU

EPO simple patent family

EP 1850311 A1 20071031; CN 2922026 Y 20070711

INPADOC legal status


2011-06-08 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20101221

2008-07-09 [AKX] PAYMENT OF DESIGNATION FEES

- Designated State(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

2008-01-23 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20071221

2007-10-31 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20061108

2007-10-31 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

2007-10-31 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Countries: AL BA HR MK YU