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US 12,309,510 B2Granted
Light-adjusting device and solid-state image sensor using the same
AssigneeVisEra Technologies Company Limited
InventorsKai-Hao Chang, Chun-Yuan Wang, Shin-Hong Kuo, Zong-Ru Tu, Po-Hsiang Wang, Chih-Ming Wang
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Abstract
A light-adjusting device having first regions and second regions is provided. The light-adjusting device includes pillars that form several groups of meta structures. The groups of meta structures correspond to the first regions, and from a top view, the first regions and the second regions are arranged in a checkerboard pattern.
Claims20
A light-adjusting device having first regions and second regions, comprising:
- pillars forming several groups of meta structures;
- wherein the groups of meta structures correspond to the first regions, and from a top view, the second regions are free of the groups of meta structures at a center, crossing points of boundaries that divide the first regions and the second regions are free of the groups of meta structures, and the first regions and the second regions are arranged in a checkerboard pattern.
A solid-state image sensor, comprising:
- photoelectric conversion elements;
- a color filter layer disposed above the photoelectric conversion elements, wherein the color filter layer comprises color filter segments and transparent segments;
- condensing structures disposed above the color filter layer;
- and
- a light-adjusting device disposed above the condensing structures, wherein the light-adjusting device has first regions and second regions and comprises:
- pillars forming several groups of meta structures,
- wherein the groups of meta structures correspond to the first regions, and from a top view, the second regions are free of the groups of meta structures at a center, crossing points of boundaries that divide the first regions and the second regions are free of the groups of meta structures, and the first regions and the second regions are arranged in a checkerboard pattern.
4 more elements
Dependencies are inferred from the claim text.