Display device and method of driving the same
AssigneeSamsung Display Co., Ltd.
InventorChul Kim
Life of this patent
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Abstract
A display device includes: a plurality of pixels in which at least a first portion of the pixels positioned in a selected area are configured to emit light in a sensing pattern; and a plurality of light sensors configured to generate sensing signals corresponding to a received light amount, wherein the selected area comprises a first area and a second area, and wherein in a first mode, a second portion of pixels positioned in the first area are configured to emit light in the sensing pattern, and to generate first sensing information using sensing signals generated by light sensors positioned in the second area, which does not overlap the first area.
Claims18
A display device comprising:
- a plurality of pixels in which at least a first portion of the pixels positioned in a selected area are configured to emit light in a sensing pattern,
- a plurality of light sensors configured to generate sensing signals corresponding to a received light amount;
- and
- a readout circuit configured to generate sensing information based on the sensing signals,
- wherein the selected area comprises a first area and a second area, and wherein in a first mode, a second portion of pixels positioned in the first area are configured to emit light in the sensing pattern, and the readout circuit is configured to generate first sensing information using sensing signals generated by light sensors positioned in the second area, which does not overlap the first area, and
- wherein pixels positioned in the second area are in a non-emission state during an entire period of the first mode,
- wherein the first sensing information is photoplethysmography (PPG) information.
A method of driving a display device, the method comprising:
- selecting a partial area of a plurality of pixels;
- emitting light in a sensing pattern by at least a first portion of pixels positioned in a selected area;
- generating, by a plurality of light sensors, sensing signals corresponding to a received light amount;
- and
- generating, by a readout circuit, sensing information based on the sensing signals,
- wherein the selected area comprises a first area and a second area, and wherein, in a first mode, a second portion of pixels positioned in the first area emits light in the sensing pattern, and the readout circuit generates first sensing information using sensing signals generated by light sensors positioned in the second area, which does not overlap the first area, and
- wherein pixels positioned in the second area are in a non-emission state during an entire period of the first mode,
- wherein the first sensing information is photoplethysmography (PPG) information.
Dependencies are inferred from the claim text.