Pixel unit array, sensor chip and electronic device
A pixel unit and array technology, applied in the direction of circuits, electrical components, electric solid-state devices, etc., can solve problems affecting the autofocus performance of image sensors
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[0036] In order to make the purpose, technical solution and advantages of the present application clearer, the embodiments of the present application will be further described in detail below in conjunction with the accompanying drawings and the embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.
[0037] In the PDAF autofocus technology, known implementation methods include: shielding pixels, dividing an original pixel into two sub-pixels, sharing a microlens (On Chip Lens, OCL for short) between two adjacent pixels, and sharing a microlens (OCL for short) with four adjacent pixels. microlenses. Please refer to figure 1 and figure 2, is a known pixel structure in which two adjacent pixels share a microlens (2×1 OCL for short) in an image sensor, that is, a microlens OCL101 is arranged on two adjacent pixel units 201 for phase detection The...
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