Row driver, image sensor, and image processing system including image sensor
By using a combination of external voltage and internal voltage in the image sensor to sequentially control the driving voltage of the row driver, the problem of voltage establishment time and driving load in the global shutter mode is solved, and the performance of the image sensor is improved.
CN119676581APending Publication Date: 2025-03-21SAMSUNG ELECTRONICS CO LTD
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Patent Information
- Application Number
- CN202411282988.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2024-09-03
- Filing Date
- 2024-09-13
- Publication Date
- 2025-03-21
AI Technical Summary
Technical Problem
In an image sensor, when using the global shutter method, simultaneous driving of pixels may result in a voltage drop, increasing the voltage setup time and the driving load of the internal voltage.
Method used
By generating an external voltage outside the image sensor and combining the internal voltage, the row driver sequentially controls the driving voltage to reduce the voltage setup time and the driving load of the internal voltage.
Benefits of technology
The effect of reducing voltage establishment time and internal voltage driving load when driving multiple pixels simultaneously in global shutter mode is realized, and the performance of the image sensor is improved.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention provides an image sensor and an image processing system. The image sensor includes: a pixel array including a plurality of pixels; a row driver configured to generate a control signal for controlling the plurality of pixels, the row driver configured to use an external voltage received from a source external to the image sensor and an internal voltage generated within the image sensor; and a voltage generator configured to generate an internal voltage, where the external voltage includes a first external voltage and a second external voltage, the internal voltage includes a first internal voltage and a second internal voltage, a level of the first internal voltage is higher than a level of the second internal voltage, and a level of the second internal voltage is lower than a level of the first internal voltage. And the level of the first external voltage is between the level of the first internal voltage and the level of the second internal voltage.
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