Yuzeng Zhang, Zhiyuan Gao, Jiangtao Xu. Design and Simulation of High Dynamic Range Pixel with Charge Distribution and LOFIC Technology[J]. Laser & Optoelectronics Progress, 2024, 61(21): 2125001
- Laser & Optoelectronics Progress
- Vol. 61, Issue 21, 2125001 (2024)
Fig. 1. Traditional LOFIC pixel structure
Fig. 2. Operating time sequence of traditional LOFIC pixel
Fig. 3. Charge distribution LOFIC pixel structure
Fig. 4. Operating time sequence of charge distribution LOFIC pixel
Fig. 5. Segmentation schematic of exposure cycle
Fig. 6. Potential distribution of charge overflow channel
Fig. 7. Variation in Cs 1 node voltage with different charge distribution and dynamic refresh numbers
Fig. 8. Effect of number of charge distribution and dynamic refresh on
Fig. 9. Effect of LOFIC capacitance splitting ratio on
Fig. 10. Variation of dynamic range with background noise
Fig. 11. Variation in pixel dynamic range extension with capacitance boost factor
Fig. 12. Variation in dynamic range upper limit with number of charge distribution and dynamic refresh and capacitance splitting ratio
Fig. 13. Schematic diagram of layout design for charge distribution LOFIC pixel
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Table 1. Comparison of performance between proposed pixel structure and existing technologies
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