Touch sensitive display device and method of determining touch
AssigneeSamsung Electronics Co., Ltd.
InventorsHo-Yong JUNG, Uk-Chul CHOI
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Abstract
In a method for determining a contact of a display device according to an exemplary embodiment, a covariance matrix is used to extract a unique vector and a unique value and to obtain the main component through the unique vector and the unique value. The value of the main component is analyzed to determine the contact existence. The unique vector and the unique value are used to extract the main component, and then the contact existence is determined such that the touch existence and the position thereof may be correctly determined without errors.
Claims20
A method for determining a contact of a display device, comprising:
- receiving a sensing data signal from a light sensor;
- and
- determining a touch existence and a position thereof by extracting and analyzing a main component from the sensing data signal.
A display device comprising:
- a display panel;
- a plurality of pixels formed in the display panel;
- a plurality of light sensors formed in the display panel;
- and
- a controller that extracts a main component of a signal from the light sensor to determine contact existence of the display panel to determine an image that the pixel will display according to the contact existence.
Dependencies are inferred from the claim text.