DISPLAY DEVICE CAPABLE OF SENSING PULSE WAVE SIGNALS AND BIOMETRIC INFORMATION
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United States of America
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Issued Date -
Mar 6, 2025
app pub date -
Apr 22, 2024
filing date -
Apr 22, 2024
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Abstract
A display device includes display pixels and light sensing pixels in a display area. A display scan driver is configured to drive the display pixels to emit light. Alight sensing scan driver is configured to drive the light sensing pixels to sense light. A main driving circuit is configured to detect pulse wave signals and measure biometric information using the light sensing signals received through the light sensing pixels. The main driving circuit determines a normal pulse wave signal detection period or an inaccurate pulse wave signal detection period at biometric information measurement start period, changes the pulse wave signals detection conditions at the inaccurate pulse wave signal detection period to re-detect the pulse wave signals, and measures the biometric information with the normal pulse wave signal.
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