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1. WO2020113458 - DIODE ÉLECTROLUMINESCENTE ET SON PROCÉDÉ DE FABRICATION, SUBSTRAT D'AFFICHAGE, ET PANNEAU D'AFFICHAGE


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INTERNATIONAL SEARCH REPORT (ISR)
Part 1:  1  2  3  4  5  6          Part 2:  A  B  C  D  E 
International application No. Applicant's or agent's file reference
PCT/CN2018/119332 UP-183583-02
International filing date (day/month/year) (Earliest) Priority Date (day/month/year)
05 December 2018
Applicant
BOE TECHNOLOGY GROUP CO., LTD.
FOR FURTHER ACTION: See Form PCT/ISA/220 as well as, where applicable, item 5 below.
This international search report has been prepared by this International Searching Authority and is transmitted to the applicant according to Article 18. A copy is being transmitted to the International Bureau.
It is also accompanied by a copy of each prior art document cited in this report.
1. Basis of the report
a. With regard to the language, the international search was carried out on the basis of:
the international application in the language in which it was filed.
a translation of the international application into                                          which is the language of a translation furnished for the purposes of international search (Rules 12.3(a) and 23.1(b)).
b.
This international search report has been established taking into account the rectification of an obvious mistake authorized by or notified to this Authority under Rule 91 (Rule 43.6bis(a)).
c.
With regard to any nucleotide and/or amino acid sequence disclosed in the international application, the international search was carried out on the basis of a sequence listing:
2. Certain claims were found unsearchable
3. Unity of invention is lacking
4. Title of the invention
The text is approved as submitted by the applicant.
The text has been established by this Authority to read as follows:
5. Abstract
The text is approved as submitted by the applicant.
The text has been established, according to Rule 38.2, by this Authority as it appears in Box No. IV. The applicant may, within one month from the date of mailing of this international search report, submit comments to this Authority.

The present disclosure is related to a light emitting diode. The light emitting diode may include a pixel unit. The pixel unit may include a first sub-pixel configured to emit white light. The first sub-pixel may include a first microcavity adjustment layer, a scattering layer, a first transparent electrode layer, a first emitting layer, and a first semi-transparent electrode layer. The scattering layer may be configured to reduce color cast of the first sub-pixel to be less than about 0.025 at viewing angles in a range of about -50 degree to +50 degree.


6. Drawings
a.
The figure of the drawings to be published with the abstract is Figure No.     3    
as suggested by the applicant.
as selected by this Authority, because the applicant failed to suggest a figure.
as selected by this Authority, because this figure better characterizes the invention.
b.
none of the figures is to be published with the abstract.

A. CLASSIFICATION OF SUBJECT MATTER

According to International Patent Classification (IPC) or to both national classification and IPC

B. FIELDS SEARCHED

Minimum documentation searched (classification system followed by classification symbols):
     H01L
Documentation searched other than minimum documentation to the extent that such documents are included in the fields searched:
Electronic data base consulted during the international search (name of data base and, where practicable, search terms used):
EPODOC,WPI,CNPAT,USTXT,CNKI,IEEE: OLED, light, diode, microcavity, scattering, color, cast, viewing, visual, angle

C. DOCUMENTS CONSIDERED TO BE RELEVANT

Category* Citation of document, with indication, where appropriate, of the relevant passages Relevant to claim No.
(1)
X
CN 106449703 A (TCL GROUP CO., LTD.) 22 February 2017 (2017-02-22)
1-20
description, paragraphs [0022]-[0036] and figures 1-4
(2)
X
CN 108666445 A (YUNGU GUAN TECHNOLOGY CO., LTD.) 16 October 2018 (2018-10-16)
1-20
description, paragraphs [0050]-[0098] and figure 1
(3)
X
CN 107195799 A (TIANMA MICRO-ELECTRONICS CO., LTD.) 22 September 2017 (2017-09-22)
1-20
description, paragraphs [0031]-[0038] and figures 1-4
(4)
X
CN 107608012 A (BOE TECHNOLOGY GROUP CO., LTD. ET AL.) 19 January 2018 (2018-01-19)
1-20
description, paragraphs [0038]-[0076] and figures 1-4
(5)
A
CN 106025091 A (TCL GROUP CO., LTD.) 12 October 2016 (2016-10-12)
1-20
the whole document
(6)
A
US 2015228929 A1 (3M INNOVATIVE PROPERTIES COMPANY) 13 August 2015 (2015-08-13)
1-20
the whole document
*
Special categories of cited documents:
"A"
document defining the general state of the art which is not considered to be of particular relevance
"D"
document cited by the applicant in the international application
"E"
earlier application or patent but published on or after the international filing date
"L"
document which may throw doubts on priority claim(s) or which is cited to establish the publication date of another citation or other special reason (as specified)
"O"
document referring to an oral disclosure, use, exhibition or other means
"P"
document published prior to the international filing date but later than the priority date claimed
"T"
later document published after the international filing date or priority date and not in conflict with the application but cited to understand the principle or theory underlying the invention
"X"
document of particular relevance; the claimed invention cannot be considered novel or cannot be considered to involve an inventive step when the document is taken alone
"Y"
document of particular relevance; the claimed invention cannot be considered to involve an inventive step when the document is combined with one or more other such documents, such combination being obvious to a person skilled in the art
"&"
document member of the same patent family

D. INFORMATION ON PATENT FAMILY MEMBERS

Patent document cited in search report Publication date
(day/month/year)
Patent family member(s) Publication date
(day/month/year)
CN 106449703 A
22 February 2017
None
CN 108666445 A
16 October 2018
None
CN 107195799 A
22 September 2017
CN 107195799 B
10 May 2019
CN 107608012 A
19 January 2018
US 2019086587 A1
21 March 2019
CN 106025091 A
12 October 2016
None
US 2015228929 A1
13 August 2015
CN 104904031 A
TW I596813 B
KR 20150046116 A
WO 2014031360 A1
JP 2015526867 A
TW 201411912 A
09 September 2015
21 August 2017
29 April 2015
27 February 2014
10 September 2015
16 March 2014
Name and mailing address of the ISA/:
National Intellectual Property Administration, PRC
6, Xitucheng Rd., Jimen Bridge, Haidian District, Beijing 100088
China
Facsimile No. (86-10)62019451
Date of the actual completion of the international search:
15 August 2019
Date of mailing of the international search report:
28 August 2019
Authorized officer:
PAN,Xiaoming
Telephone No. 86-(10)-53961267
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