Touch sensor
US-2015378493-A1 · Dec 31, 2015 · US
Temperature Compensating Transparent Force Sensor Having a Compliant Layer
US2016147352A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016147352-A1 |
| Application number | US-201514729508-A |
| Country | US |
| Kind code | A1 |
| Filing date | Jun 3, 2015 |
| Priority date | Jan 13, 2014 |
| Publication date | May 26, 2016 |
| Grant date | — |
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Abstract
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An optically transparent force sensor that may compensate for environmental effects, including, for example, variations in temperature of the device or the surroundings. In some examples, two force-sensitive layers are separated by a compliant layer. The relative electrical response of the two force-sensitive layers may be used to compute an estimate of the force of a touch that reduces the effect of variations in temperature. In some examples, piezoelectric films having anisotropic strain properties are used to reduce the effects of temperature.
First claim
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We claim: 1 . An electronic device having an optically transparent force sensor comprising: a first transparent substrate; a first force-sensitive layer disposed relative to the first transparent substrate; a second transparent substrate disposed below the first substrate; a second force-sensitive layer disposed relative to the second transparent substrate; and a compliant layer disposed between the first and second substrates; and sensor circuitry that is configured t…
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Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
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- What does patent US2016147352A1 cover?
- An optically transparent force sensor that may compensate for environmental effects, including, for example, variations in temperature of the device or the surroundings. In some examples, two force-sensitive layers are separated by a compliant layer. The relative electrical response of the two force-sensitive layers may be used to compute an estimate of the force of a touch that reduces the eff…
- Who is the assignee on this patent?
- Apple Inc
- What technology area does this patent fall under?
- Primary CPC classification G06F3/0414. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Thu May 26 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).