Application of ultra-thin indium-tin-oxide film in liquid crystal lens

被引：19

作者：

Hsu, Che Ju ^{[1
]}

Agrahari, Kaushlendra ^{[2
]}

Selvaraj, Pravinraj ^{[3
]}

Chiang, Wei Fan ^{[4
,5
]}

Huang, Chia Yi ^{[5
]}

Manohar, Rajiv ^{[2
]}

Huang, Chi Yen ^{[1
]}

机构：

[1] Natl Changhua Univ Educ, Grad Inst Photon, Changhua 500, Taiwan

[2] Univ Lucknow, Liquid Crystal Res Lab, Phys Dept, Lucknow 226007, Uttar Pradesh, India

[3] Natl Changhua Univ Educ, Dept Phys, Changhua 500, Taiwan

[4] Natl Cheng Kung Univ, Dept Photon, Tainan 701, Taiwan

[5] Tunghai Univ, Dept Appl Phys, Taichung 407, Taiwan

来源：

OPTICS AND LASER TECHNOLOGY | 2019年 / 119卷

关键词：

Ultra-thin ITO; High resistance; Low voltage; LC lens; LARGE-APERTURE; DRIVING VOLTAGES; FOCAL LENGTH; ELECTRODES; OPTIMIZATION; PERFORMANCE; MICROLENS; THICKNESS;

D O I：

10.1016/j.optlastec.2019.105603

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The resistance of indium-tin-oxide (ITO) film increases with the decrease in film thickness. An ultra-thin ITO (UTITO) film with a high resistance is realised by adjusting the deposition time during sputtering. The fabricated UTITO film is then placed at the interface between the dielectric and liquid crystal (LC) layers in large-aperture hole-patterned LC lens. With an appropriate frequency and amplitude of applied voltage, the inserted UTITO film effectively spreads the voltage into the centre of the large-aperture hole-patterned LC lens, which assists in rotating the LC molecules therein. Consequently, the addressing voltage and switching time of the LC lens can be remarkably decreased. The LC lens with the insertion of UTITO film obtains a low wavefront error and high focusing quality and image performance. The innovative concept for fabricating the low-voltage LC adaptive lens with a UTITO film is competitive to other methods.

引用

页数：7

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