Direct view and projection switchable mobile display

Hsin Hsuan Huang, Cheng Huan Chen, Yu Cheng Lai, Yu Cheng Chang, Yi Pai Huang, Han Ping D. Shieh, Chih Wen Chen

Research output: Contribution to journalConference articlepeer-review


The function of mobile phone becomes more versatile as a personal assistant. In order to make display device optimized for different function of the mobile phone, this paper proposes a display device which can be switched among 2D direct view, 3D direct view and projection modes while using single liquid crystal(LC) panel as image source. The device features a highly collimated backlight unit and polymer dispersed liquid crystal(PDLC) diffuser at the back of the LC panel, and a switchable lenticular array as well as a stretchable projection lens in front. The ray tracing simulation has shown well controlled light path of the backlight module and sufficient image quality of the projection lens while maintaining the compactness of the device for mobile application.

Original languageEnglish
Pages (from-to)436-438
Number of pages3
JournalDigest of Technical Papers - SID International Symposium
Issue number1
StatePublished - 1 Jan 2009
Event2009 Vehicles and Photons Symposium - Dearborn, MI, United States
Duration: 15 Oct 200916 Oct 2009


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