Fingerprint sensors for mobile devices
First Claim
1. A display assembly, comprising:
- a display panel including a first portion having display elements and touch elements, and including a second portion having display elements and touch elements, wherein a number of the touch elements of the second portion is more than a number of the touch elements of the first portion resulting in a touch sensitivity of the second portion being more sensitive to touch interactions than a touch sensitivity of the first portion; and
circuitry configured to image a fingerprint as a first type of touch interaction on or above the display panel using the touch elements of the second portion, and configured to determine a second type of touch interaction using one or both of the first portion and the second portion, the first type of touch interaction being different than the second type of touch interaction.
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Accused Products
Abstract
Various embodiments concern fingerprint sensors for mobile devices. By modifying one or more layers of a display assembly, a fingerprint sensor can be positioned directly beneath the display. For example, the air gap within the backlight structure could be replaced by an optically clear adhesive that allows waves emitted by a fingerprint sensor to properly propagate through the display assembly. In some embodiments, a fingerprint sensor is set within a recess in the display assembly. For example, a depression could be created in the protective substrate, and the fingerprint sensor could be set within the depression using an optically clear adhesive. The functionality of a fingerprint sensor could also be replicated by increasing the density of touch-sensing elements in certain areas of a display assembly that utilizes in-cell technology.
23 Citations
27 Claims
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1. A display assembly, comprising:
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a display panel including a first portion having display elements and touch elements, and including a second portion having display elements and touch elements, wherein a number of the touch elements of the second portion is more than a number of the touch elements of the first portion resulting in a touch sensitivity of the second portion being more sensitive to touch interactions than a touch sensitivity of the first portion; and circuitry configured to image a fingerprint as a first type of touch interaction on or above the display panel using the touch elements of the second portion, and configured to determine a second type of touch interaction using one or both of the first portion and the second portion, the first type of touch interaction being different than the second type of touch interaction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A display assembly, comprising:
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a display panel having a first portion and a second portion, the second portion having a higher touch sensitivity than a touch sensitivity of the first portion; and circuitry configured to determine a fingerprint of a finger placed on the display assembly using the second portion of the display panel, and configured to sense a touch of the finger placed on the display assembly using one or both of the first portion and the second portion. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A method, comprising:
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determining that a finger has been placed on a first portion of a display panel, the first portion having a first touch sensitivity; generating a fingerprint corresponding to the finger based on the first portion having the first touch sensitivity; and determining that the finger has been placed on a second portion of the display panel, the second portion having a second touch sensitivity, the second touch sensitivity less sensitive to touch interactions than the first touch sensitivity of the first portion of the display panel. - View Dependent Claims (21, 22, 23, 24, 25)
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26. An apparatus, comprising:
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means for determining that a finger has been placed on a first portion of a display panel, the first portion having a first touch sensitivity; means for generating a fingerprint corresponding to the finger based on the first portion having the first touch sensitivity; and means for determining that the finger has been placed on a second portion of the display panel, the second portion having a second touch sensitivity, the second touch sensitivity less sensitive to touch interactions than the first touch sensitivity of the first portion of the display panel. - View Dependent Claims (27)
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Specification