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

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- 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 and

Fig. 9. Effect of LOFIC capacitance splitting ratio on and . (a) ; (b)

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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