Fingerprint imaging modules and electronic device
An imaging module and fingerprint technology, which is applied in the direction of acquiring/arranging fingerprints/palmprints, printing image collection, character and pattern recognition, etc., can solve the problems of poor fingerprint image quality, uneven light sensitivity, etc., and achieve improved adjustment Range, expand the design space, improve the effect of dimming effect
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[0060] It can be known from the background technology that the fingerprint imaging module in the prior art has the problem of uneven light sensitivity. Now combine the structure of the existing fingerprint imaging module and the image sensor to analyze the reasons for the uneven light sensitivity:
[0061] reference figure 1 with figure 2 ,among them figure 1 Shows a schematic circuit diagram of an image sensor, figure 2 show figure 1 A schematic diagram of the top view structure of a single pixel in the image sensor shown.
[0062] The image sensor is an area array image sensor. Such as figure 1 As shown, the image sensor includes a plurality of pixel units 11, which are arranged in an array to form a pixel array; the pixel units 11 in the same column are connected to the readout circuit 13 through data lines 12 extending in the column direction, The pixel units 11 in the same row are connected to the gate driving circuit 15 through the scan line 14 extending in the row directi...
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