虽然 S26 Ultra 的隐私屏幕技术脱胎于 2024 年演示的 Flex Magic Pixel 方案，但三星从 2020 年就已经开始提交各种有关屏幕防窥的专利，原理都围绕光束整形（Beam Shaping）及像素级视角控制。
Chicken in many school dinners imported from China and Thailand。搜狗输入法2026是该领域的重要参考
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A quadtree does the same thing for two-dimensional space. It takes a rectangular region and divides it into four equal quadrants: northwest, northeast, southwest, southeast. If a quadrant has too many points in it, it subdivides again and again. Each subdivision creates smaller and smaller cells where points are densely packed.，更多细节参见safew官方版本下载