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US 2017/0285872 A1Published application
Screen contact detection using total internal reflection
AssigneeHewlett-Packard Development Company, L.P.
InventorsWei-Shan YANG, Irwan HALIM
Life of this patent
Estimating the term…
Abstract
Examples are directed to detect screen contact using total internal reflection. One example involves detecting contact on a screen, the screen comprising total internal reflection of light; and determining, via at least one processor, a location of the contact on the screen based on a disturbance of the total internal reflection, the disturbance caused by the detected contact.
Claims15
A method comprising:
- detecting contact on a screen comprising total internal reflection of light, the contact detected via a first light sensor and a second light sensor, the first light sensor and the second light sensor located on a first axis and a second axis of a plane of the screen, respectively, and the contact detected based on configurations of a first lens of the first light sensor and a second lens of the second light sensor, wherein the first axis is different form the second axis;
- and
- determining, via at least one processor, a location of the contact on the screen based on a disturbance of the total internal reflection, the disturbance caused by the detected contact.
An apparatus comprising:
- a contact analyzer to analyze light measurements from a first sensor on a first axis of a display screen and a second sensor on a second axis of the display screen to detect contact with the display screen, wherein the first axis is different from the second axis and the light measurements are made from light causing total internal reflection within the display screen;
- and
- a location calculator to determine a location of the contact on the screen based on the analyzed light measurements, the analyzed light measurements based on configurations of a first lens of the first light sensor and a second lens of the second light sensor.
A non-transitory computer readable storage medium comprising instructions that, when executed, cause a machine to at least:
- analyze a total internal reflection of light within a screen to detect contact within the screen based on configurations of a first lens of a first sensor and a second lens of a second sensor, the first sensor located on a first axis of the screen and a second sensor located on a second axis of the screen to detect the contact, wherein the first axis is different form the second axis;
- and
- determine a location of the contact when the total internal reflection of light is disrupted by the contact.
Dependencies are inferred from the claim text.