Abstract
Recently, a planoconvex structure electrowetting lenticular lens capable of 2D/3D conversion through a varifocal property by an electrowetting phenomenon has been developed. However, even though it has a similar planoconvex structure to that of a commercial solid lenticular lens, comparable 3D performance could not be realized because the refractive index difference between nonconductive liquid and conductive liquid was not large. Therefore, the goal of the present study is to obtain better 3D performance compared to the conventional planoconvex structure by introducing a novel biconvex structure using ETPTA. The newly developed biconvex structure electrowetting lenticular lens showed greatly improved characteristics compared to the planoconvex structure: dioptric power (171.69D → 1,982.56D), viewing angle (26degrees → 46degrees), and crosstalk ratio (27.27% → 16.18%). Thanks to these improvements, a fine 3D image and a natural motion parallax could be observed with the biconvex structure electrowetting lenticular lens. In addition, the novel biconvex structure electrowetting lenticular lens was designed to achieve a plane lens state with a no voltage applied condition, and as such it could show a clean 2D image at 0 V. In conclusion, a novel biconvex structure electrowetting lenticular lens showed 2D/3D switchable operation as well as excellent 3D performance compared to a solid lenticular lens.
Highlights
To develop an autostereoscopic display[1,2,3,4] capable of 2D/3D conversion, research on the fabrication of a tunable lenticular lens using a liquid crystal[5,6], a polymer membrane[7,8], and a liquid lens[9,10] has been carried out in recent years
We propose a new electrowetting lenticular lens structure to overcome the various limitations of the planoconvex structure electrowetting lenticular lens (P-EWLL)
The biconvex structure electrowetting lenticular lens (B-EWLL) showed considerable improvement over the various characteristics compared to the P-EWLL
Summary
To develop an autostereoscopic display[1,2,3,4] capable of 2D/3D conversion, research on the fabrication of a tunable lenticular lens using a liquid crystal[5,6], a polymer membrane[7,8], and a liquid lens[9,10] has been carried out in recent years. An opened structure chamber in which nonconductive liquid can be uniformly dosed into all lens chambers has been newly developed[14] Through these studies, the dioptric power was improved to some extent, but it was still insufficient to reach 2,000 D, which is the dioptric power of a commercial solid lenticular lens that has fixed focal length. Has a shorter focal length than that of the P-EWLL This is because the refractive index difference between the nonconductive liquid and the conductive liquid in the electrowetting lenticular lens system is relatively smaller than the refractive index difference between the solid lenticular lens and the air. In order to meet the aforementioned requirements, a novel biconvex structure electrowetting lenticular lens (B-EWLL) capable of further refracting light, which is shown in Fig. 1b, is proposed in this study
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
