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Image sensor and driving method thereof

An image sensor and transmission tube technology, applied in the field of image processing, can solve the problems of metal layer blocking light, etc., to achieve the effect of reducing light blocking, reducing quantity, and realizing control and signal readout

Active Publication Date: 2014-10-29
GALAXYCORE SHANGHAI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

More row and column connecting lines are likely to cause light blocking on the metal layer

Method used

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  • Image sensor and driving method thereof
  • Image sensor and driving method thereof
  • Image sensor and driving method thereof

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Embodiment Construction

[0030] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0031] In the following description, many specific details are set forth in order to fully understand the present invention, but the present invention can also be implemented in other ways than those described here, so the present invention is not limited by the specific embodiments disclosed below.

[0032] In view of the problems described in the background technology, the present invention provides an image sensor, including: a plurality of pixel units, the pixel units include a plurality of photosensitive units arranged in rows and columns and a readout circuit connected to the photosensitive units; The photosensitive unit includes a photodiode and a transmission tube; the readout circuit includes a reset tube, a source follower and...

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Abstract

The invention relates to an image sensor and a driving method thereof. The image sensor comprises a plurality of pixel units, transmission pipe row connecting wires, signal column connecting wires and row-gating tube row connecting wires, wherein each pixel unit comprises photosensitive units and reading circuits; each photosensitive unit comprises a photodiode and a transmission pipe; each reading circuit comprises a resetting pipe, a source follower and a row gating tube; the photosensitive units on the same column in each pixel unit share one reading circuit; the transmission pipe row connecting wires are used for uploading transmission pipe continuity signals; the transmission pipes on the same row share one transmission pipe row connecting wire; the signal column connecting wires are connected with the reading circuits and are used for outputting the signals; the row-gating tube row connecting wires are connected with the row gating tubes of the reading circuits and are used for uploading row gating tube continuity signals to the row gating tubes; the reading circuits in each pixel unit share one signal column connecting wire; and the row-gating tube row connecting wires in each pixel unit are used for carrying out time-sharing uploading on the row gating tube continuity signals, so that each reading circuit in each pixel unit outputs the signal in a time-sharing mode. The invention can reduce the problem of light blocking of a metal layer.

Description

technical field [0001] The invention relates to the field of image processing, in particular to an image sensor and a driving method thereof. Background technique [0002] Image sensors belong to the optoelectronic components in the optoelectronic industry. With the rapid development of digital technology, semiconductor manufacturing technology and the Internet, the market and the industry are now facing the arrival of the era of video, video, and communication integration across various platforms. The beauty of the daily life of future human beings. Therefore, image sensor products have become the focus of the current and future industry, attracting investment from many manufacturers. Divided by product category, image sensor products are mainly divided into CCD image sensor (charge-coupled image sensor), CMOS image sensor (complementary metal oxide image sensor). [0003] The pixel structure of the existing CMOS image sensor is mainly divided into two types, which are re...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/369H04N5/378H01L27/146
Inventor 李杰
Owner GALAXYCORE SHANGHAI
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