(19)
(11) EP 3 422 817 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
27.03.2019 Bulletin 2019/13

(43) Date of publication A2:
02.01.2019 Bulletin 2019/01

(21) Application number: 18179703.6

(22) Date of filing: 26.06.2018
(51) International Patent Classification (IPC): 
H05B 33/08(2006.01)
(84) Designated Contracting States:
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 States:
BA ME
Designated Validation States:
KH MA MD TN

(30) Priority: 26.06.2017 US 201715632393

(71) Applicant: Industrial Technology Research Institute
31040 Hsinchu (TW)

(72) Inventors:
  • CHEN, Tzung-Te
    Taipei City 116 (TW)
  • HSIEH, Chia-Fen
    Zhubei City, Hsinchu County 302 (TW)
  • LIU, Tung-Yun
    Zhudong Township, Hsinchu County 310 (TW)
  • WEN, Shih-Yi
    Hsinchu City 300 (TW)
  • LU, Chien-Chun
    New Taipei City 251 (TW)
  • TSAI, Hsin-Yun
    Baoshan Township, Hsinchu County 308 (TW)

(74) Representative: Becker Kurig Straus 
Patentanwälte Bavariastrasse 7
80336 München
80336 München (DE)

   


(54) LIGHT SOURCE APPARATUS


(57) An embodiment of the disclosure provides a light source apparatus including a light-emitting module and a control unit. The light-emitting module is configured to provide a light. The control unit is configured to change proportion of a first sub-light and a second sub-light to form the light so that a circadian action factor (CAF) and a correlated color temperature (CCT) of the light varies along a CAF vs. CCT locus of the light different from a CAF vs. CCT locus of sunlight. A CAF vs. CCT coordinate of one of the first sub-light and the second sub-light is below the CAF vs. CCT locus of sunlight, and a CAF vs. CCT coordinate of the other one of the first sub-light and the second sub-light is above the CAF vs. CCT locus of sunlight. A display apparatus is also provided.







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