EP 4150679 A1 20230322 - LIGHT-EMITTING DEVICE WITH CONFIGURABLE SPATIAL DISTRIBUTION OF EMISSION INTENSITY
Title (en)
LIGHT-EMITTING DEVICE WITH CONFIGURABLE SPATIAL DISTRIBUTION OF EMISSION INTENSITY
Title (de)
LICHTEMITTIERENDE VORRICHTUNG MIT KONFIGURIERBARER RÄUMLICHER VERTEILUNG DER EMISSIONSINTENSITÄT
Title (fr)
DISPOSITIF ÉLECTROLUMINESCENT À DISTRIBUTION SPATIALE CONFIGURABLE D'INTENSITÉ D'ÉMISSION
Publication
Application
Priority
- US 202016875237 A 20200515
- EP 20180007 A 20200615
- US 202117142960 A 20210106
- US 2021032312 W 20210513
Abstract (en)
[origin: WO2021231772A1] A semiconductor light-emitting device includes a junction between doped semiconductor layers, a first set of multiple independent contacts connected to a first doped layer and a second set of one or more contacts connected to the second doped layer. Multiple conductive vias connect the independent contacts to the first doped layer, enabling differing corresponding via currents to be applied to the first doped layer through the vias independent of one another. A spatial distribution of via currents among the multiple vias can be selected to yield a corresponding spatial distribution of emission intensity. Alteration of the via current distribution results in corresponding alteration of the emission intensity distribution; such alterations can be implemented dynamically. Multiple devices can be arranged as a light-emitting array.
IPC 8 full level
H01L 33/08 (2010.01); H01L 25/075 (2006.01); H01L 33/14 (2010.01); H01L 33/38 (2010.01); H01L 33/62 (2010.01); H05B 45/10 (2020.01)
CPC (source: EP KR)
G09G 3/32 (2013.01 - KR); H01L 25/0753 (2013.01 - EP KR); H01L 27/156 (2013.01 - EP KR); H01L 33/38 (2013.01 - KR); H01L 33/405 (2013.01 - KR); H01L 33/46 (2013.01 - KR); H05B 45/20 (2020.01 - EP); H05B 45/30 (2020.01 - EP KR); H05B 47/155 (2020.01 - EP); H01L 25/167 (2013.01 - EP); H01L 33/62 (2013.01 - EP)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
WO 2021231772 A1 20211118; CN 115868034 A 20230328; CN 115868034 B 20240329; EP 4150679 A1 20230322; EP 4150679 A4 20240306; JP 2023524892 A 20230613; JP 7485790 B2 20240516; KR 102581156 B1 20230921; KR 20230003632 A 20230106
DOCDB simple family (application)
US 2021032312 W 20210513; CN 202180049164 A 20210513; EP 21803213 A 20210513; JP 2022569091 A 20210513; KR 20227044010 A 20210513