OPTICAL IMAGE ACQUISITION UNIT, OPTICAL IMAGE ACQUISITION APPARATUS AND ELECTRONIC DEVICE

摘要

An optical image acquisition unit (200), an optical image acquisition apparatus and an electronic device (100). The optical image acquisition unit (200) comprises: a microlens (210); a light blocking layer (220) arranged below the microlens (210), wherein the light blocking layer (220) is provided with a via hole (221) located below the microlens (210) and passing through the light blocking layer (220); and a photoelectric sensor (230) arranged below the light blocking layer (220), wherein the photoelectric sensor (230) comprises a thin film transistor (240) and a photodiode (250); the microlens (210) is used for converging optical signals from above the microlens (210) to the via hole (221), and the optical signals are transmitted to the photodiode (250) via the via hole (221); and the photodiode (250) is used for converting the optical signals into electrical signals and transmitting the electrical signals to the thin film transistor (240). The microlens (210) converging the optical signals from above the microlens (210) to the via hole (221), and transmitting the optical signals to the photoelectric sensor (230) via the via hole (221) to realize image acquisition can improve the performance of an optical image acquisition product.