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An image sensor and electronic device

A technology of image sensor and electronic equipment, applied in image communication, television, electrical components, etc., can solve problems such as complex process, low pixel fill factor, and slow saturation speed

Active Publication Date: 2022-03-08
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The second is that the photosensitive response curve is in logarithmic form, resulting in a slow saturation
At present, in order to achieve wide dynamic range, there are many related technologies, among which there are many pixel-level wide dynamic range technologies. However, such technologies have problems such as complex process, low pixel fill factor, and low pixel utilization.

Method used

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Embodiment Construction

[0040] The technical solution of the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the shapes and sizes of the structures in the drawings are only schematically illustrating the embodiments of the present application, and are not intended to limit the structures.

[0041] In order to better understand the embodiments of the present application, related technologies are described first.

[0042] figure 1 It is a schematic diagram of the composition and structure of the image sensor in the related art, such as figure 1 As shown, the image sensor 10 mainly includes: a pixel array 11 , a timing control module 12 , an analog signal processing module 13 and an analog-to-digital conversion module 14 . Wherein, the pixel array 11 is a main component of the image sensor 10, and its function is to complete photoelectric conversion and convert photons into electrons. The pix...

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Abstract

The embodiment of the present application discloses an image sensor and an electronic device, wherein the image sensor includes: a pixel unit constituting an array for photosensitive; the pixel unit includes: a first photosensitive area, including a plurality of Arranged photodiodes; the second photosensitive area, connected to the first photosensitive area, includes a plurality of photodiodes arranged in a second density; wherein, the first density is greater than the second density, so that the The photosensitivity of the first photosensitive area is greater than the photosensitivity of the second photosensitive area.

Description

technical field [0001] The present application relates to the field of image sensors, involving but not limited to an image sensor and electronic equipment. Background technique [0002] The image sensor is one of the important components of the camera, and is widely used in digital imaging, aerospace and medical imaging and other fields. The image sensor can be divided into two types according to different elements, CCD (Charge Coupled Device, charge coupled device) and CMOS (Complementary Metal-Oxide Semiconductor, metal oxide semiconductor element). [0003] Both CCD image sensors and CMOS image sensors use photodiodes to collect incident light and convert it into electrical charges that can be image-processed. Dynamic range is an important parameter characterizing the performance of the sensor, which represents the range from "darkest" to "brightest" contained in the image. The larger the dynamic range, the richer the level of images that can be expressed, and the wide...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/355H04N5/369
Inventor 杨鑫
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD