This publication describes systems and techniques directed to improving under-display fingerprint authentication latency by normalizing frame luminance. In aspects, a computing device having an organic light-emitting diode (OLED) display and an under-display fingerprint sensor (UDFPS) includes a local high brightness mode manager configured to selectively adjust luminance and digital gray settings in a high-luminance region of the display for predetermined intervals. In so doing, user input may be stably illuminated during UDFPS image capturing, facilitating UDFPS sensing, and improving under-display fingerprint authentication latency.
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Wen, Vicky and Youn, Sang Young, "Improving Under-Display Fingerprint Authentication Latency by Normalizing Frame Luminance", Technical Disclosure Commons, (March 24, 2022)