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International application No. Applicant's or agent's file reference
PCT/KR2019/016437 2019OPSE2909
International filing date (day/month/year) (Earliest) Priority Date (day/month/year)
27 November 2019 30 November 2018
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)).
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)).
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 filed or furnished:
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.
6. Drawings
The figure of the drawings to be published with the abstract is Figure No.     1    
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.
none of the figures is to be published with the abstract.


     G06K 9/00 (2006.01)i
According to International Patent Classification (IPC) or to both national classification and IPC


Minimum documentation searched (classification system followed by classification symbols):
Documentation searched other than minimum documentation to the extent that such documents are included in the fields searched:
한국등록실용신안공보 및 한국공개실용신안공보: 조사된 최소문헌란에 기재된 IPC
일본등록실용신안공보 및 일본공개실용신안공보: 조사된 최소문헌란에 기재된 IPC
Electronic data base consulted during the international search (name of data base and, where practicable, search terms used):
eKOMPASS(KIPO internal) & Keywords: fingerprint, sensor, brightness, adjust


Category* Citation of document, with indication, where appropriate, of the relevant passages Relevant to claim No.
US 2017-0364763 A1 (SAMSUNG ELECTRONICS CO., LTD.) 21 December 2017 paragraphs [0066]-[0089], [0125], [0238]-[0242], [0284], [0310] and figures 2-4, 12, 22, 28, 32
EP 3299947 A1 (VKANSEE (BEIJING) TECHNOLOGY CO., LTD.) 28 March 2018 paragraphs [0085]-[0090] and figure 7
US 2018-0285619 A1 (SAMSUNG DISPLAY CO., LTD.) 04 October 2018 paragraphs [0080]-[0099] and figure 4
US 2005-0213799 A1 (TOMOMI SAWANO) 29 September 2005 paragraphs [0064]-[0070] and figure 5
KR 10-2017-0095737 A (CRUCIALTEC CO., LTD.) 23 August 2017 paragraphs [0070]-[0090] and figure 4
Special categories of cited documents:
document defining the general state of the art which is not considered to be of particular relevance
document cited by the applicant in the international application
earlier application or patent but published on or after the international filing date
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)
document referring to an oral disclosure, use, exhibition or other means
document published prior to the international filing date but later than the priority date claimed
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
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
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


Patent document cited in search report Publication date
Patent family member(s) Publication date
US 2017-0364763 A1
21 December 2017
CN 107526953 A
EP 3258408 A1
KR 10-2017-0141522 A
US 10452937 B2
29 December 2017
20 December 2017
26 December 2017
22 October 2019
EP 3299947 A1
28 March 2018
CN 107656665 A
EP 3299947 A4
JP 2018-526702 A
KR 10-2018-0037919 A
RU 2685983 C1
TW 201804362 A
US 2019-0065808 A1
US 10482309 B2
WO 2018-018988 A1
02 February 2018
19 December 2018
13 September 2018
13 April 2018
23 April 2019
01 February 2018
28 February 2019
19 November 2019
01 February 2018
US 2018-0285619 A1
04 October 2018
CN 108766330 A
EP 3382586 A1
KR 10-2018-0112186 A
US 10579848 B2
06 November 2018
03 October 2018
12 October 2018
03 March 2020
US 2005-0213799 A1
29 September 2005
AU 2003-285762 A1
CN 1726505 A
CN 100343863 C
JP 4658443 B2
JP 2004-199487 A
KR 10-0716046 B1
KR 10-2005-0085683 A
TW I252436 B
TW 200414070 A
US 7760921 B2
WO 2004-057523 A1
14 July 2004
25 January 2006
17 October 2007
23 March 2011
15 July 2004
09 May 2007
29 August 2005
01 April 2006
01 August 2004
20 July 2010
08 July 2004
KR 10-2017-0095737 A
23 August 2017
KR 10-1809437 B1
KR 10-2017-0095709 A
WO 2017-142288 A1
15 December 2017
23 August 2017
24 August 2017
Name and mailing address of the ISA/:
Korean Intellectual Property Office
189 Cheongsa-ro, Seo-gu, Daejeon Metropolitan City, 302-701
Republic of Korea
Facsimile No. +82-42-481-8578
Date of the actual completion of the international search:
20 March 2020
Date of mailing of the international search report:
20 March 2020
Authorized officer:
PARK, Hye Lyun
Telephone No. +82-42-481-3463
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