Journal of Surface Science and Engineering (한국표면공학회지)

The Korean Institute of Surface Engineering (한국표면공학회)
권호 표지
DOI QR코드

DOI QR Code

Modeling of Sand Blasting Process for Anti-Glare Surface Treatment of Display Glass

디스플레이 유리의 눈부심 방지 표면처리를 위한 샌드 블래스팅 공정의 모형화

  • Min, Chul Hong (Central Research Institute, SYNOPEX Inc.) ;
  • Kim, Tae Seon (School of Information, Communications and Electronics Engineering, Catholic University of Korea)
  • 민철홍 ((주) 시노펙스) ;
  • 김태선 (가톨릭대학교 정보통신전자공학부)
  • Received : 2018.10.15
  • Accepted : 2018.10.29
  • Published : 2018.10.31
Download PDF
⟨ Previous Next ⟩

Abstract

Currently hydrofluoric acid (HF) based glass etch method is widely used for anti-glare (AG) surface treatment since it can effectively alleviate the specular reflection problem with relatively low processing cost. However, due to the environmental regulation and safety problem, it is essential to develop alternative technology to replace this method. For this, in this paper, we propose sand blasting based AG surface treatment method for display glass. To characterize the sand blasting process, surface roughness, haze, surface durability, and flatness are considered as process outputs and central composite design (CCD) method and response surface model (RSM) method are applied to model each process output. Models for surface roughness and haze showed 96.44% and 97.24% of R-squared values, respectively and they can be applied to optimize AG surface treatment process for various haze level requirements of display industries.

Keywords

PMGHBJ_2018_v51n5_303_f0001.png 이미지

Fig. 1 A simple expression of sand blaster for AG surface treatment.

PMGHBJ_2018_v51n5_303_f0002.png 이미지

Fig. 2 Effects of height and speed on surface roughness.

PMGHBJ_2018_v51n5_303_f0003.png 이미지

Fig. 3 Residual plot for haze.

PMGHBJ_2018_v51n5_303_f0004.png 이미지

Fig. 4 Main effect plot for haze.

PMGHBJ_2018_v51n5_303_f0005.png 이미지

Fig. 5 Interaction plot for haze.

PMGHBJ_2018_v51n5_303_f0006.png 이미지

Fig. 6 Main effect plot for surface durability.

PMGHBJ_2018_v51n5_303_f0007.png 이미지

Fig. 7 Interaction plot for durability.

Table 1. Range of input parameters for sand blasting.

PMGHBJ_2018_v51n5_303_t0001.png 이미지

Table 2. Response parameters for characterization of AG surface treatment.

PMGHBJ_2018_v51n5_303_t0002.png 이미지

Table 3. Estimated regression coefficients for roughness (Ra).

PMGHBJ_2018_v51n5_303_t0003.png 이미지

References

  1. V. F. Paz, S. Kohlenbecker, E. Persidis, Implementation of a sparkle characterization method for anti-glare layers on automotive-displays, Proc. Int. W. Act. Matrix Flatpanel Disp. (2018) 1-4.
  2. Y. D. Almoallem, M. J. Moghimi, H. Jiang, Conformal antireflective surface formed onto 3-D silicon structure, J. Microelectromec. Syst. 27 (2018) 380-382. https://doi.org/10.1109/JMEMS.2018.2825649
  3. D. Tulli, S. D. Hart, P. Mazumder, A. Carrilero, L. Tian, K. W. Koch, Monolithically integrated micro- and nanostructured glass surface with antiglare, antireflection, and superhydrophobic Properties, appl. mater. interfaces 6 (2014) 11198-11203. https://doi.org/10.1021/am5013062
  4. P. Lin, Y. Lin, S. Hwang, S. Jeng, C. Liao, Effects of anti-glare surface treatment, ambient illumination and bending curvature on legibility and visual fatigue of electronic papers, Display 29 (2008) 25-32. https://doi.org/10.1016/j.displa.2007.06.009
  5. M. Isshiki, Simulation of anti-glare cover glass using fourier optics consistent with sparkle and other visual performances, Soc. Inf. Disp. Tech. Dig. 48 (2017) 1383-1386. https://doi.org/10.1002/sdtp.11906
  6. A. M. Nuijs, J. J. L. Horikx, Diffraction and scattering at antiglare structures for display devices, Appl. Opt. 33 (1994) 4058-4068. https://doi.org/10.1364/AO.33.004058
  7. H. Laouamri, S. Giljean, G. Arnold, M. Kolli, N. Bouaouadja, M. Tuilier, Roughness influence on the optical properties and scratch behavior of acrylic coating deposited on sandblasted glass, Prog. Org. Coat. 101 (2016) 400-406 https://doi.org/10.1016/j.porgcoat.2016.09.014
  8. E. Kang, J. Kim, H. Jang, D. Park, Machinability evaluation of sapphire glass using powder blasting, J. Korean Soc. Manuf. Technol. Eng. 24 (2015) 224-230
  9. C. Min, D. Shin, K. Park, T. Kim, T. Park and T. Kim, Process analysis for surface treatment of glass anti-glare using sand blast process, Proc. IEEK summer Conf. (2018) 1435-1437.
  10. D. Whitehouse, Surfaces and their Measurement. 1st Ed. Boston Butterworth-Heinemann, Boston (2012) 16-24.
  11. D. Montgomery, Design and analysis of experiments, 4th Ed. Jonh Wiley & Sons, New York (1996) 575-606.