18437691. IMAGE SENSOR simplified abstract (SAMSUNG ELECTRONICS CO., LTD.)
Contents
IMAGE SENSOR
Organization Name
Inventor(s)
Masato Fujita of Suwon-si (KR)
Kyungduck Lee of Hwaseong-si (KR)
Taesub Jung of Hwaseong-si (KR)
IMAGE SENSOR - A simplified explanation of the abstract
This abstract first appeared for US patent application 18437691 titled 'IMAGE SENSOR
The patent application describes an image sensor with a pixel array and a logic circuit, where each pixel includes a pixel circuit below at least one photodiode, and at least one autofocusing pixel with two photodiodes separated by a pixel internal isolation layer.
- Pixel array with pixel isolation layer between pixels
- Logic circuit acquires pixel signals from pixels
- Autofocusing pixel with two photodiodes and microlens
- Pixel internal isolation layer with different materials
- First and second pixel internal isolation layers separated in a perpendicular direction
Potential Applications: - Digital cameras - Smartphones - Surveillance systems - Medical imaging devices
Problems Solved: - Improved autofocus capabilities - Enhanced image quality - Better low-light performance
Benefits: - Sharper images - Faster autofocus - Enhanced overall image quality
Commercial Applications: Title: "Advanced Autofocusing Image Sensor Technology for Enhanced Photography" This technology can be used in digital cameras, smartphones, and other imaging devices to improve autofocus performance and image quality, potentially leading to increased sales and market competitiveness.
Prior Art: There may be existing patents or technologies related to image sensors with autofocusing capabilities, but the specific design and features of this patent application may offer unique advantages.
Frequently Updated Research: As technology advances, research on image sensors and autofocus systems continues to evolve, with potential improvements and innovations in the field.
Questions about Autofocusing Image Sensor Technology:
Question 1: How does the pixel internal isolation layer contribute to the performance of the autofocusing pixel? Answer: The pixel internal isolation layer helps separate the two photodiodes in the autofocusing pixel, allowing for more precise control and improved autofocus capabilities.
Question 2: What are the potential challenges in implementing this advanced autofocusing technology in commercial products? Answer: Some challenges may include manufacturing complexity, cost considerations, and integration with existing camera systems, but the benefits of improved autofocus performance and image quality may outweigh these challenges in the long run.
Original Abstract Submitted
An image sensor includes a pixel array and a logic circuit. The pixel array includes a pixel isolation layer between a plurality of pixels. Each of the plurality of pixels include a pixel circuit below at least one photodiode. The logic circuit acquires a pixel signal from the plurality of pixels. The pixel array includes at least one autofocusing pixel, which includes a first photodiode, a second photodiode, a pixel internal isolation layer between the first and second photodiodes, and a microlens on the first and second photodiodes. The pixel internal isolation layer includes a first pixel internal isolation layer and a second pixel internal isolation layer, separated from each other in a first direction, perpendicular to the upper surface of the substrate, and the first pixel internal isolation layer and the second pixel internal isolation layer include different materials.
