Image sensor, camera module and electronic equipment

Abstract

The invention discloses an image sensor, a camera module and electronic equipment, and belongs to the field of image processing. The image sensor comprises a pixel array, the pixel array comprises a first pixel group and a second pixel group, the first pixel group is used for photosensitive imaging, and the second pixel group is used for focusing; the first pixel group comprises at least six first pixel units, and the at least six first pixel units comprise at least three of the following pixel units: a red pixel unit, a green pixel unit, a blue pixel unit, a cyan pixel unit, a magenta pixel unit, a yellow pixel unit, an infrared pixel unit and a white pixel unit; the second pixel group comprises six second pixel units, at least two of the six second pixel units correspondingly cover one micro lens, and the second pixel units are white pixel units.

Description

technical field [0001] The application belongs to the technical field of image processing, and specifically relates to an image sensor, a camera module and electronic equipment. Background technique [0002] Currently, in complementary metal oxide semiconductor (Complemerntary metal oxide semiconductor, CMOS) image sensors, commonly used color filter arrays (Color Filter Array, CFA) include RGB Bayer (Bayer) arrays, CMY (cyan magenta yellow) arrays, RGBW (red-green-blue-white) array and RYYB (red-yellow-blue) array, however, the RGB Bayer array has low sensitivity, and the brightness value of the generated image is low, while other color filter arrays, although the amount of incoming light has been increased, but due to The number of RGB effective pixels is limited, the accuracy of color reproduction is poor, and the image clarity is also poor. [0003] In addition, the image sensor also includes PD (Phase Detect, phase) pixels for focusing, such as semi-shielded PD and Dua...

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Problems solved by technology

[0002] Currently, in complementary metal oxide semiconductor (Complemerntary metal oxide semiconductor, CMOS) image sensors, commonly used color filter arrays (Color Filter Array, CFA) include RGB Bayer (Bayer) arrays, CMY (cyan magenta yellow) arrays, RGBW (red-green-blue-white) array and RYYB (red-yellow-blue) array, however, the RGB Bayer array has low sensitivity, and the brightness value of the generated image is low, while other color filter arrays, although the amount of incoming light has been increased, but due to The number of RGB effective pixels is limited, the accuracy of color reproduction is poor, and the image clarity is also poor

[0003] In addition, the image sensor also includes PD (Phase Detect, phase) pixels for focusing, such as semi-shielded PD and Dual PD, but the existing PD pixels can only achieve phase focusing in a single direction, and the focusing ability is poor

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