OPTICAL SENSOR MODULE INCLUDING MEANS FOR INCREASING FINGERPRINT RECOGNITION RATE OF OPTICAL FINGERPRINT SENSOR

摘要

The present invention relates to an optical sensor module (000). According to the present invention, the optical sensor module (000) comprises: a self-luminous panel (100) emitting light; a polarizing plate (200) disposed on one surface of the self-luminous panel (100); a window (300) disposed on one surface of the polarizing plate (200); a window protection film (400) disposed on at least one surface of the window (300); and a fingerprint sensor unit (500) disposed on the other surface of the self-luminous panel (100) opposite to the surface, on which the polarizing plate (200) is disposed, and sensing the light emitted from the self-luminous panel (100) and reflected from a users fingerprint, wherein a) a mutual angle (;) between an absorption axis (201) of the polarizing plate (200) and a slow axis (401) of the window protection film (400) is adjusted to be -15 to 15 or 75 to 105so that a specular reflectance can be increased, thereby increasing a fingerprint recognition rate of the fingerprint sensor or b) the specular reflectance is maintained at a constant level regardless of the mutual angle between the absorption axis (201) of the polarizing plate (200) and the slow axis (401) of the window protection film (400) by including a /4 phase difference (600) layer between the polarizing plate (200) and the window protection film (400). Therefore, when used together with an additional means for increasing the amount of light irradiation of the included self-luminous panel and the like, the fingerprint sensor can be improved in the fingerprint recognition rate without separate adjustment of the mutual angle.;COPYRIGHT KIPO 2020