借助光栅原理，让屏幕发出的光只能从正面特定角度范围内看到，从而实现「大角度防窥」的效果：
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"We get a lot of people saying, 'I don't have a problem dealing with people'. And then they realise that they are not comfortable sharing spaces with other people.
Qatar and Turkey mediated between the two sides, with talks held in Doha and Istanbul. A fragile ceasefire followed, but the negotiations failed to bring about a ceasing of hostilities between the two sides.