Title:
SOLAR CELL FOR WATCH
Document Type and Number:
Japanese Patent JP2021036566
Kind Code:
A
Abstract:
To enhance the degree of freedom in color and pattern of a display panel of a watch in a solar cell to be used in combination with the display panel.SOLUTION: A solar cell 10 for a watch includes a colored layer 12 covering a light receiving surface 11a of a power generation layer 11. The power generation layer 11 has an optical reflectance which is a first reflectance in a green region, a second reflectance higher than the first reflectance in a blue region, and a third reflectance higher than the first reflectance in a red region. The colored layer 12 has an optical transmittance which is a first transmittance in the green region, a second transmittance lower than the first transmittance in the blue region, and a third transmittance lower than the first transmittance in the red region. As described above, since the color of the power generation layer 11 and the color of the colored layer 12 have a complementary relationship, the color saturation of reflected light B obtained from the power generation layer 11 via the colored layer 12 is lowered.SELECTED DRAWING: Figure 1
Inventors:
KANAMARU ZENICHI
NAKANISHI KOHEI
NAKANISHI KOHEI
Application Number:
JP2019158047A
Publication Date:
March 04, 2021
Filing Date:
August 30, 2019
Export Citation:
Assignee:
TDK CORP
International Classes:
H01L31/054; G04C10/02; G04G19/00
Attorney, Agent or Firm:
Mitsuhiro Washito
Ogata Japanese
Ogata Japanese