Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
LIGHT EXTRACTION BODY FOR SEMICONDUCTOR LIGHT-EMITTING ELEMENT, AND LIGHT-EMITTING ELEMENT
Document Type and Number:
WIPO Patent Application WO/2013/154150
Kind Code:
A1
Abstract:
A light extraction body (1) for a semiconductor light-emitting element is provided with: a concavo-convex structure layer (11) which has a concavo-convex structure (11a) provided to a surface thereof, and which has a first refractive index (n1); and first light extraction layers (12a) provided on the convex portions of the concavo-convex structure (11a). With regard to the first light extraction layers (12a), the distance (Lcv) between the average position (Sh) of convex-portion apexes and the average position (Scv) of the boundary surfaces of the first light extraction layers (12a) on the convex portions satisfies formula (1) 10nm ≤ Lcv ≤ 5000nm. In the concavo-convex structure (11a): the average height (H) of the convex portions satisfies formula (2) 10nm ≤ H ≤ 5000nm; the average pitch (P) satisfies formula (3) 50nm ≤ P ≤ 5000nm; and the aforementioned distance (Lcv) and the average height (H) of the convex portions satisfy formula (4) 50nm ≤ Lcv+H ≤ 6000nm. As a result, light-extraction efficiency from a semiconductor light-emitting element using the light extraction body (1) can be improved, and long-term reliability of the semiconductor light-emitting element can also be improved.

More Like This:
WO/2013/073434ORGANIC EL ELEMENT
WO/2013/002983TECHNIQUES FOR MANUFACTURING PLANAR PATTERNED TRANSPARENT CONTACT AND/OR ELECTRONIC DEVICES INCLUDING SAME
WO/2023/279462DISPLAY PANEL AND DISPLAY DEVICE
Inventors:
YAMAGUCHI FUJITO (JP)
KOIKE JUN (JP)
TAKAGIWA AYA (JP)
Application Number:
PCT/JP2013/060906
Publication Date:
October 17, 2013
Filing Date:
April 11, 2013
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
ASAHI CHEMICAL IND (JP)
International Classes:
H01L51/52; G02B5/18; H01L21/027
Domestic Patent References:
WO2011132773A12011-10-27
Foreign References:
JP2005284276A2005-10-13
JP2004311419A2004-11-04
JP2008541368A2008-11-20
JP2007335253A2007-12-27
JP2011028940A2011-02-10
JP2010529598A2010-08-26
JPS62172691A1987-07-29
JP2991183B21999-12-20
JP2010533932A2010-10-28
JP2004273122A2004-09-30
Other References:
See also references of EP 2838130A4
Attorney, Agent or Firm:
AOKI, HIROYOSHI (JP)
Hiroyoshi Aoki (JP)
Download PDF:
View/Download PDF      PDF Help



 
Previous Patent: ELECTRIC-DISCHARGE MACHINING SWITCHING APPARATUS

Next Patent: ILLUMINATION DEVICE AND LIQUID CRYSTAL DISPLAY DEVICE