FINGERPRINT SENSOR, FINGERPRINT SENSOR PACKAGE, AND FINGERPRINT SENSING SYSTEM USING LIGHT SOURCES OF DISPLAY PANEL
First Claim
Patent Images
1. A fingerprint sensor comprising:
- an image sensor including a plurality of sensor pixels, the sensor pixels configured to sense light reflected by a fingerprint and generate image information corresponding to the fingerprint; and
a pinhole mask defining a plurality of pinholes, each of the pinholes forming a focus for transmitting the light reflected by the fingerprint to the image sensor, and the light is emitted from a plurality of organic light-emitting, diodes (OLEDs) and is reflected by the fingerprint.
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Abstract
At least some example embodiments provide a fingerprint sensor, a fingerprint sensor package, and a fingerprint sensing system using light sources of a display panel. The fingerprint sensor includes an image sensor including a plurality of sensor pixels, the sensor pixels configured to sense light reflected by a fingerprint and generate image information corresponding to the fingerprint and a pinhole mask defining a plurality of pinholes, wherein each of the pinholes forms a focus for transmitting the light reflected by the fingerprint to the image sensor, wherein light is emitted from a plurality of organic light-emitting diodes (OLEDs) and is reflected by the fingerprint.
124 Citations
31 Claims
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1. A fingerprint sensor comprising:
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an image sensor including a plurality of sensor pixels, the sensor pixels configured to sense light reflected by a fingerprint and generate image information corresponding to the fingerprint; and a pinhole mask defining a plurality of pinholes, each of the pinholes forming a focus for transmitting the light reflected by the fingerprint to the image sensor, and the light is emitted from a plurality of organic light-emitting, diodes (OLEDs) and is reflected by the fingerprint. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12-22. -22. (canceled)
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23. A fingerprint sensing system comprising:
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a display panel including light sources, the light sources configured to emit light having one or more colors in relation to a display operation; an image sensor attached to one surface of the display panel and configured to sense light from the light sources that is reflected by a fingerprint located on another surface of the display panel, the image sensor configured to generate image information according to a sensing result; and a pinhole mask between the display panel and the image sensor, the pinhole mask having a plurality of pinholes for forming a focus of the light reflected by the fingerprint, wherein, in a fingerprint sensing operation, the image sensor senses light having some of the one or more colors and generates the image information. - View Dependent Claims (24, 25, 26)
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27. A sensing system comprising:
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a display panel configured to generate light and receive reflected light based on the generated light; and a sensor, the sensor including, a mask defining a plurality of holes, the mask configured to guide a first portion of the reflected light through the mask, a first side of the mask being on the display panel, and an image sensor on a second side of the mask, the image sensor including a plurality of sensor pixels, the plurality of sensor pixels configured to sense the first portion of the reflected light and generate electrical signals based on the sensed light, the mask being configured to guide the first portion of the reflected light to the image sensor without a lens. - View Dependent Claims (28, 29, 30, 31)
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Specification