Electronic device
AssigneeSamsung Display Co., Ltd.
InventorsHYUNGBAE KIM, SANGHYUN LIM
Life of this patent
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Abstract
An electronic device includes a host processor to output a first signal having a first frequency and a second signal having a second frequency higher than the first frequency and containing frame data, a driving controller configured to receive the frame data from the host processor and to generate image data, a display layer to display an image based on the image data, a sensor layer disposed on the display layer and including a plurality of sensing electrodes, and a sensor driver to provide a transmit signal having a third frequency to the plurality of sensing electrodes. The host processor determines the first frequency based on the third frequency.
Claims25
An electronic device comprising:
- a host processor configured to output a first signal having a first frequency and a second signal having a second frequency higher than the first frequency and containing frame data;
- a driving controller configured to receive the frame data from the host processor and to generate image data based on the frame data;
- a display layer configured to display an image based on the image data;
- a sensor layer disposed on the display layer and including a plurality of sensing electrodes;
- and
- a sensor driver configured to provide a transmit signal having a third frequency to the plurality of sensing electrodes,
- wherein the host processor determines the first frequency based on the third frequency.
An electronic device comprising:
- a host processor configured to output a first signal having a first frequency and a second signal having a second frequency higher than the first frequency and containing frame data;
- a driving controller configured to receive the frame data from the host processor and to generate image data based on the frame data;
- a display layer configured to display an image based on the image data;
- a sensor layer disposed on the display layer and including a plurality of sensing electrodes;
- and
- a sensor driver configured to provide a transmit signal to the plurality of sensing electrodes and to receive a receive signal from the plurality of sensing electrodes,
- wherein the host processor measures noise in the receive signal by sweeping a packet frequency over a range of packet frequencies and driving the sensor layer, and
- wherein the host processor selects, as the first frequency, one of a plurality of candidate frequencies at which the measured noise is equal to or below a predetermined threshold.
An electronic device comprising:
- a host processor configured to output a first signal having a first frequency and a second signal having a second frequency higher than the first frequency and containing frame data;
- a driving controller configured to receive the frame data from the host processor and to generate image signal based on the frame data;
- a display layer to receive the image signal;
- a sensor layer disposed on the display layer and including a plurality of sensing electrodes;
- and
- a sensor driver configured to provide a transmit signal having a third frequency to the plurality of sensing electrodes and to receive a receive signal from the plurality of sensing electrodes,
- wherein an active period of the transmit signal completely overlaps an active period of the first signal.
Dependencies are inferred from the claim text.