This paper first proposes a design for privacy monitor that only users at the right angle viewpoint can see the screen clearly, while users at a large enough deviated angle viewpoint cannot see any useful information on the screen. The space where users from that viewpoint can see the screen is called visible space in this paper. Then the visible space of the proposed privacy monitor is completely characterized for IPS screen. By adjusting the distance between the two liquid crystal layers, the size of the visible space can be controlled in such a way that larger distance will result in a smaller visible space, while smaller distance will result in a larger visible space.
KeywordsPrivacy monitor Visible space Screen
This work was supported by the “Fundamental Research Funds for the Central Universities” grant No. 3262016T47 and the NSFC grant No. 61671448 and the key project of NFSC grant No. U1536207 and the “Strategic Priority Research Program” of the Chinese Academy of Sciences No. XDA06010701. Besides, many thanks to the handling editor and anonymous reviewers for their valuable comments that help us to improve this paper.
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