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Patent Searching and Data


Title:
FINGERPRINT SENSOR AND DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/130934
Kind Code:
A1
Abstract:
[Problem] To provide a fingerprint sensor for a display device, which makes it possible to suppress loss of light due to diffraction of light, as well as a display device provided with this fingerprint sensor. [Solution] A fingerprint sensor for a display device, the fingerprint sensor including a plurality of photosensors arrayed in the form of a matrix, wherein each of the photosensors includes: a semiconductor film 200 for converting incident light into an electric signal; and a bottom gate electrode 300 disposed on the lower-layer side of the semiconductor film 200 and serving as a light blocking film for blocking light from being incident on the semiconductor film from the lower-layer side, wherein the bottom gate electrode 300 has an outer contour shape with four corner sections C1 to C4 when viewed from above, and each of the corner sections C1 to C4 is rounded.

Inventors:
KOMATSU Hiroshi (3-1 Koudan-cho Myoukou City Niigata, 20, 〒9440020, JP)
SUZUKI Akane (3-2 Itachibori 2-chome, Nishi-k, Osaka-city Osaka 12, 〒5500012, JP)
KIMURA Jun (3-2 Itachibori 2-chome, Nishi-k, Osaka-city Osaka 12, 〒5500012, JP)
KOJIMA Kensuke (3-2 Itachibori 2-chome, Nishi-k, Osaka-city Osaka 12, 〒5500012, JP)
Application Number:
JP2018/043381
Publication Date:
July 04, 2019
Filing Date:
November 26, 2018
Export Citation:
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Assignee:
CONNECTEC JAPAN CORPORATION (3-1 Koudan-cho, Myoukou City Niigata, 20, 〒9440020, JP)
FUJIKIN INCORPORATED (3-2 Itachibori 2-chome, Nishi-ku Osaka-city Osaka, 12, 〒5500012, JP)
International Classes:
G06T1/00; A61B5/1172; G06F3/0354; G06F3/041; G06F3/042; G09F9/30
Domestic Patent References:
WO2008149706A12008-12-11
WO2009148084A12009-12-10
Foreign References:
JP2011118877A2011-06-16
JP2006086333A2006-03-30
JP2006126788A2006-05-18
JP2017188522A2017-10-12
Attorney, Agent or Firm:
FUJIMOTO Kenji (6-1-4-905, Takasu Urayasu-city Chiba, 23, 〒2790023, JP)
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