BACKLIGHT UNIT USING MULTI-CELL LIGHT EMITTING DIODE

Title:

BACKLIGHT UNIT USING MULTI-CELL LIGHT EMITTING DIODE

Document Type and Number:

WIPO Patent Application WO/2016/209025

Kind Code:

A3

Abstract:

A backlight unit, according to one embodiment of the present invention, comprises: a base; and a plurality of light emitting diode packages arranged on the lower surface of the base, wherein each light emitting diode package comprises at least one light emitting diode that includes: a first conductive type semiconductor layer; a mesa located on the first conductive type semiconductor layer and comprising an active layer and a second conductive type semiconductor layer; a reflective electrode structure located on the mesa; a current spreading layer covering the mesa and the first conductive type semiconductor layer, wherein the current spreading layer has a first opening for exposing the reflective electrode structure and is electrically connected to the first conductive type semiconductor layer and insulated from the reflective electrode structure and the mesa; and an upper insulating layer covering the current spreading layer, and the upper insulating layer has: a second opening for exposing the current spreading layer to limit a first electrode pad area; and a third opening for exposing an upper area of the exposed reflective electrode structure to limit a second electrode pad area.

Inventors:

SONG YOUNG JUN (KR)
JUNG JUNG HWA (KR)
KIM EUN JU (KR)

Application Number:

PCT/KR2016/006768

Publication Date:

February 16, 2017

Filing Date:

June 24, 2016

Export Citation:

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Assignee:

SEOUL SEMICONDUCTOR CO LTD (KR)

International Classes:

G09G3/34; F21K99/00; F21S2/00; G02F1/1335; H01L33/48

Foreign References:

KR20150014135A	2015-02-06
KR20150033548A	2015-04-01
KR20120031342A	2012-04-03
KR20140117791A	2014-10-08
KR20150025797A	2015-03-11
KR20130103263A	2013-09-23
KR20140045094A	2014-04-16
JP2012138499A	2012-07-19

Other References: