Electronic device including a fingerprint recognition function
Provided is an electronic device including: a biometric information sensing layer including a sensor; an optical pattern layer disposed on the biometric information sensing layer, and including a plurality of transmission parts and a light shielding part; and a display layer disposed on the optical pattern layer. When a fill factor (FF) of the sensor, which is a ratio of the amount of light received by the sensor to the total amount of light incident onto the sensor, is about 10% to about 70%, a field of view (FOV) of light incident onto the sensor is about 15° to about 30°.
1 . An electronic device comprising:
a biometric information sensing layer including a sensor;
an optical pattern layer disposed on the biometric information sensing layer, and including a plurality of transmission parts and a light shielding part;
a display layer disposed on the optical pattern layer; and
a light collecting layer disposed between the display layer and the optical pattern layer,
wherein the sensor has a fill factor (FF), which is a ratio of an amount of light received by the sensor to a total amount of light incident onto the sensor, of about 10% to about 70%, and
the optical pattern layer and the light collecting layer are configured to provide a field of view (FOV) of light incident onto the sensor of about 15° to about 30°.
2 . The electronic device of claim 1 , wherein the optical pattern layer and the light collecting layer are further configured to provide a proportion of a cross-talk component of the sensor of about 1% to about 10%.
3 . The electronic device of claim 1 , wherein the light collecting layer comprises a refractive layer and a cover layer disposed on the refractive layer.
4 . The electronic device of claim 3 , wherein a first refractive index of the refractive layer is greater than a second refractive index of the cover layer.
5 . The electronic device of claim 4 , wherein the refractive layer comprises a lens array, and the cover layer comprises an infrared filter.
6 . The electronic device of claim 1 , wherein the plurality of transmission parts are arranged along a first direction and a second direction crossing the first direction, and the light shielding part surrounds the plurality of transmission parts.
7 . The electronic device of claim 1 , wherein the display layer comprises:
a base layer;
a circuit layer disposed on the base layer, and including a pixel circuit; and
a light-emitting element layer disposed on the circuit layer, and including a first electrode, a light-emitting layer, and a second electrode,
wherein the first electrode and the second electrode each comprise a transparent conductive material.
8 . The electronic device of claim 1 , wherein the display layer includes an active region and a peripheral region adjacent to the active region, wherein the active region displays an image, wherein the biometric information sensing layer includes a sensing region sensing biometric information, and
wherein the sensing region overlaps the active region.
9 . The electronic device of claim 1 , wherein at least one side of the sensor has a length of about 40 μm to about 60 μm.
10 . An electronic device comprising:
a biometric information sensing layer including a sensor;
an optical pattern layer disposed on the biometric information sensing layer, and including a plurality of transmission parts and a light shielding part;
a refractive layer disposed on the optical pattern layer, and including a lens array;
a display layer disposed on the refractive layer; and
a light collecting layer disposed between the display layer and the optical pattern layer,
wherein the sensor has a fill factor (FF), which is a ratio of an amount of light received by the sensor to a total amount of light incident onto the sensor, of greater than about 70% and equal to or less than 100%, and
the optical pattern layer and the light collecting layer are configured to provide a field of view (FOV) of light incident onto the sensor of about 1° to about 7°.
11 . The electronic device of claim 10 , wherein the optical pattern layer and the light collecting layer are further configured to provide a proportion of a cross-talk component of the sensor of about 1% to about 5%.
12 . The electronic device of claim 10 , further comprising a cover layer disposed between the display layer and the refractive layer.
13 . The electronic device of claim 12 , wherein the cover layer comprises an infrared filter.
14 . The electronic device of claim 10 , wherein the display layer includes an active region and a peripheral region adjacent to the active region, wherein the active region displays an image, wherein the biometric information sensing layer includes a sensing region sensing biometric information, and
wherein the sensing region overlaps the active region.
15 . The electronic device of claim 10 , wherein the sensor has an area of about 40 μm×about 40 μm to about 60 μm×about 60 μm.
16 . A display device comprising:
a biometric information sensing layer including a sensor;
an optical pattern layer disposed on the biometric information sensing layer, and including a plurality of transmission parts and a light shielding part;
a display layer disposed on the optical pattern layer; and
a light collecting layer disposed between the display layer and the optical pattern layer,
wherein the sensor has a fill factor, which is a ratio of an amount of light received by the sensor to a total amount of light incident onto the sensor, of about 70% to about 100%, and
the optical pattern layer and the light collecting layer are configured to provide a field of view of light incident onto the sensor of about 1° to about 7°.
17 . The display device of claim 16 , wherein the optical pattern layer and the light collecting layer are further configured to provide a proportion of a cross-talk component of the sensor of about 1% to about 5%.