Anti-glare coating glass with sol-gel process
-
2018-04-03 https://doi.org/10.14419/ijet.v7i2.12.11024
-
Anti-Glare Coating, Sol-Gel Process, Slot Die Coating, Touch Panel, Infotainment System. -
Abstract
Background/Objectives: The next generation car such as self-driving car, and electrical vehicle is a hot issue of the automobile industry, which has the infotainment system with the multi-touch screen panel.
Methods/Statistical analysis: The reflection of light from the surface of touch-panel display hinders the clean image acquisition of the display of infotainment system. In this research, anti-glare coating was fabricated by slot die method with the synthesized sols using the TEOS and functional binder on cleaned slide glass. The morphology and surface roughnesswere characterized by FE-SEM, and AFM. The optical properties of anti-glare coating were analyzed by UV-visible spectrophotometer and haze meter.
Findings: The average transmittance of anti-glare coating glasses exhibits 88.5% - 90.5% in the visible light range of 400 nm to 800 nm wavelength. The haze value of the anti-glare coating has 7.1% - 36.6% to various coating conditions. The haze values of anti-glare coating were mainly affected by coated sol conditions rather than the coating conditions. The coating conditions of slot die method such as gap distance, and discharge rate of nozzle not affect the quality of anti-glare coating. The haze of anti-glare coating was affected by particle density, and particle size. The anti-glare coating of dense particle distribution and large particle exhibit large haze value about 37%.The best performance of anti-glare coatingwas 7.1% haze, 90.5% average transmittance, and 11 nm average surface roughness, which was coated with the solution #2 sol. The reflectance of anti-glare coating was not affected by change of haze values. But the transmittance of anti-glare coating was affected by haze.
Improvements/Applications: The anti-glare coating glass can be applied to various applications such as protective glass of crystalline Si photovoltaic cells, window of skyscraper, and roof of airport buildings.
Â
-
References
[1] Stavenga D G, Foletti S, Palasantzas G, Arikawa K, Light on the moth-eye corneal nipple array of butterflies, Proceedings of the Royal Society B, 2006, 273, pp. 661-667.
[2] Zhang X, Zhang J, Ren Z, Li X, Zhang X, Zhu D, Wang T, Tian T, Yang B, Morphology and wettability control of silicon cone array using colloidal lithography, Langmuir, 2009, 25(13), pp. 7375-7382.
[3] Wang S, Yu X Z, Fan H T, Simple lithographic approach for subwavelength structure antireflection, Applied Physics Letters, 2007, 91, p. 061105.
[4] Papet P, Nichiporuk O, Kaminski A, Rozier Y, Kraiem J, Lelievre J F, Chaumartin A, Fave A, Lemiti M, Pyramidal texturing of silicon solar cell with TMAH chemical anisotropic etching, Solar Energy Materials & Solar Cells, 2006, 90, pp. 2319-2328.
[5] Choi K, Park S H, Song Y M, Lee Y T, Hwangbo C K, Yang H, Lee H S, Nano-tailoring the surface structure for the monolithic high-performance antireflection polymer film, Advanced Materials, 2010, 22, pp. 3713-3718.
[6] Han K S, Lee H, Kim D, Lee H, Fabrication of anti-reflection structure on protective layer of solar cells by hot-embossing method, Solar Energy Materials & Solar Cells, 2009, 93, pp. 1214-1217.
[7] Kuo M L, Poxson D J, Kim Y S, Mont F W, Kim J K, Schubert E F, Lin S Y, Realization of a near-perfect antireflection coating for silicon solar energy utilization, Optics Letters, 2008, 33(21), pp. 2527-2529.
[8] Kim K C, Effective graded refractive-index anti-reflection coating for high refractive-index polymer ophthalmic lenses, Materials Letters, 2015, 160, pp. 158-161.
[9] Moghal J, Kobler J, Sauer J, Best J, Gardener M, Watt A A R, Wakefield G, High-performance, single-layer antireflective optical coatings comprising mesoporous silica nanoparticles, ACS Applied Materials & Interfaces, 2012, 4, pp. 854-859.
[10] Glaubitt W, Löbmann P, Anti-soiling effect of porous SiO2 coatings prepared by sol-gel processing, Journal of Sol-Gel Science Technology, 2011, 59, pp. 239-244.
[11] Liu B T, Yeh W D, Antireflective surface fabricated from colloidal silica nanoparticles, Colloids and Surfaces A: Physicochemical Engineering Aspects, 2010, 356, pp. 145-149.
[12] Kim K C, Dependence of surface morphology of transparent hydrophobic anti-reflective coating, Journal of the Korea Academia-Industrial cooperation Society, 2017, 18(10), pp. 771-776.
[13] Lee D, Fubner M F, Cohen R E, All-nanoparticle thin-film coating, Nano Letters, 2006, 6(10), pp. 2305-2312.
[14] Moghal J, Reid S, Hagerty L, Gardener M, Wakefield G, Development of single layer nanoparticle anti-reflection coating for polymer substrates, Thin Solid Films, 2013, 534, pp. 541-545.
[15] Askar K, Phillips B M, Fang Y, Choi B, Gozubenli N, Jiang P, Jiang B, Self-assembled self-cleaning broadband anti-reflection coatings, Colloids and Surfaces A: Physicochemical Engineering Aspects, 2013, 439, pp. 84-100.
[16] Nuijs A M, Horikx J J L, Diffraction and scattering at antiglare structures for display devices, Applied Optics, 1994, 33(18), pp. 4058-4068.
-
Downloads
-
How to Cite
Chul Kim, K. (2018). Anti-glare coating glass with sol-gel process. International Journal of Engineering & Technology, 7(2.12), 5-7. https://doi.org/10.14419/ijet.v7i2.12.11024Received date: 2018-04-03
Accepted date: 2018-04-03
Published date: 2018-04-03