PL EN


Preferencje help
Widoczny [Schowaj] Abstrakt
Liczba wyników
Tytuł artykułu

Optimization of optical uniformity factors of backlight module using robust design method

Treść / Zawartość
Identyfikatory
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
In order to meet the advent of the high-definition liquid crystal display (LCD) era, in addition to the high-quality panel manufacturing technology, how the backlight module can provide a uniform backlight with higher uniformity for a better experience in viewing, is a very important and urgent issue. In this study, the 15.6-inch side-in backlight module was used as the benchmark, and the Taguchi method was applied to find the high uniformity. The matching of the fishbone diagram affects the optical uniformity factor of the backlight module, such as the size of the light guide plate dot, the color of the plastic frame, the color of the fixed gel of the light guide plate, and the difference of the reflection surface. The optical analog software LightTools is used according to the orthogonal table. The signal-to-noise (S/N) ratio of the average uniformity characteristics is obtained, then it is converted into the best response factor of the factor response table and the factor reaction diagram. The homogeneity at 13 points is as high as 90.12%, which is 4.72% higher than the original design factor. The contribution of the four factors to the uniformity can be obtained by using the variance analysis. Finally, the influence of each factor level on the uniformity is discussed.
Słowa kluczowe
Czasopismo
Rocznik
Strony
5--20
Opis fizyczny
Bibliogr. 21 poz., rys., tab.
Twórcy
autor
  • Department of Mechanical Engineering, National Kaohsiung University of Science and Technology, Kaohsiung 80778, Taiwan
autor
  • Department of Mechanical Engineering, National Kaohsiung University of Science and Technology, Kaohsiung 80778, Taiwan
autor
  • Department of Mechanical Engineering, National Kaohsiung University of Science and Technology, Kaohsiung 80778, Taiwan
autor
  • Department of Mechanical Engineering, National Kaohsiung University of Science and Technology, Kaohsiung 80778, Taiwan
  • Faculty of Mechanical Engineering, Hung Yen University of Technology and Education, Khoai Chau District, Hung Yen Province, Vietnam
  • Department of Mechanical Engineering, National Kaohsiung University of Science and Technology, Kaohsiung 80778, Taiwan
Bibliografia
  • [1] CHIEN K.-W., SHIEN H.-P.D., Design and fabrication of an integrated polarized light guide for liquid-crystal-display illumination, Applied Optics 43(9), 2004, pp. 1830–1834, DOI: 10.1364/AO.43.001830.
  • [2] CHANG J.-G., LEE C.-T., FANG Y.-B., HWANG C.-C., Generation of random non-overlapping dot patterns for light guides using molecular dynamics simulations with variable r-cut and reflective boundary techniques, Computer Physics Communications 177(11), 2007, pp. 851–862, DOI: 10.1016/j.cpc.2007.07.010.
  • [3] LIN C.-F., WU C.-C., YANG P.-H., KUO T.-Y., Application of Taguchi method in light-emitting diode backlight design for wide color gamut displays, Journal of Display Technology 5(8), 2009, pp. 323–330, DOI: 10.1109/JDT.2009.2023606.
  • [4] JOO B.-Y., KANG J.J., HONG J.-P., Analysis of the light-scattering power of patterned dot material printed on the light guide plate in liquid crystal display, Displays 33(4–5), 2012, pp. 178–185, DOI: 10.1016/j.displa.2012.08.005.
  • [5] YU J.-C., SUPRAYITNO, YANG L.-W., Optical design optimization of high contrast light guide plate for front light unit, Microsystem Technologies 25(5), 2019, pp. 2135–2144, DOI: 10.1007/s00542-018-04287-x.
  • [6] ZHENG X., ZHOU S.C., XU R., CHEN H.P., Energy-efficient scheduling for multi-objective two-stage flow shop using a hybrid ant colony optimisation algorithm, International Journal of Production Research 58(13), 2020, pp. 4103–4120, DOI: 10.1080/00207543.2019.1642529.
  • [7] YEN Y.-T., FANG T.-H., LIN Y.-C., Optimization of screen-printing parameters of SN9000 ink for pinholes using Taguchi method in chip on film packaging, Robotics and Computer-Integrated Manufacturing 27(3), 2011, pp. 531–537, DOI: 10.1016/j.rcim.2010.09.008.
  • [8] KIJASZEK W., OLESZKIEWICZ W., Optimization of radio frequency inductively coupled plasma enhanced chemical vapour deposition process of diamond-like carbon films, Optica Applicata 46(2), 2016, pp. 167–172, DOI: 10.5277/oa160201.
  • [9] CHEN W.-C., LAI T.-T., WANG M.-W., HUNG H.-W., An optimization system for LED lens design, Expert Systems With Applications 38(9), 2011, pp. 11976–11983, DOI: 10.1016/j.eswa.2011.03.092.
  • [10] LEE S.-C., KIM T., PARK W.-S., Liquid crystal displays with variable viewing angles using electric-field-driven liquid crystal lenses as diffusers, Applied Sciences 10(2), 2020, article 667, DOI: 10.3390/app10020667.
  • [11] TIEN N.X., SHIN S., A novel concentrator photovoltaic (C PV) system with the improvement of irradiance uniformity and the capturing of diffuse solar radiation, Applied Sciences 6(9), 2016, article 251, DOI: 10.3390/app6090251.
  • [12] HU R., LUO X.B., ZHENG H., QIN Z., GAN Z.Q., WU B.L., LIU S., Design of a novel freeform lens for LED uniform illumination and conformal phosphor coating, Optics Express 20(13), 2012, pp. 13727–13737, DOI: 10.1364/OE.20.013727.
  • [13] YE Z.T., CHEN C.L., CHEN L.-C., TIEN C.H., NGUYEN H.T., WANG H.-C., Hollow light guide module involving mini light-emitting diodes for asymmetric luminous planar illuminators, Energies 12(14), 2019, article 2755, DOI: 10.3390/en12142755.
  • [14] HUANG B.-L., GUO T.-L., Integrated backlight module to provide a collimated and uniform planar light source, Applied Optics 55(26), 2016, pp. 7307–7313, DOI: 10.1364/AO.55.007307.
  • [15] LE H.-T., LE L.-T., LIAO H.-Y., CHEN M.-J., MA H.-Y., LEE H.-Y., Design of low-glared LED rear light of automotive for EU ECE regulation by use of optimized micro-prisms array, Crystals 10(2), 2020, article 63, DOI: 10.3390/cryst10020063.
  • [16] TSAI J.-Z., CHANG R.-S., LI T.-Y., CHUANG T.C., LED backlight module bya lightguide-diffusive component with tetrahedron reflector array, Journal of Display Technology 8(6), 2012, pp. 321–328, DOI: 10.1109/JDT.2012.2184077.
  • [17] WANG J., SUN S.-F., LIU Q.-Y., SHAO J., ZHANG F.-Y., ZHANG Q., Effects of laser processing parameters on glass light guide plate scattering dot performance, Optics & Laser Technology 115, 2019, pp. 90–96, DOI: 10.1016/j.optlastec.2019.01.033.
  • [18] KAKINUMA K., Technology of wide color gamut backlight with light-emitting diode for liquid crystal display television, Japanese Journal of Applied Physics 45(5B), 2006, pp. 4330–4334, DOI: 10.1143/JJAP.45.4330.
  • [19] LEE G., JEONG J.H., YOON S.-J., CHOI D.-H., Design optimization for optical patterns in a light-guide panel to improve illuminance and uniformity of the liquid-crystal display, Optical Engineering 48(2), 2009, article 024001, DOI: 10.1117/1.3083290.
  • [20] KIM G.H., KIM W.J., KIM S.M., SON J.G., Analysis of thermo-physical and optical properties of a diffuser using PET/PC/PBT copolymer in LCD backlight units, Displays 26(1), 2005, pp. 37–43, DOI: 10.1016/j.displa.2004.11.001.
  • [21] YANG X.P., YAN Y.B., FENG D., JIN G.F., Compound hyperbolic concentrator-type reflectors for liquid crystal display backlight systems, Journal of Optics A: Pure and Applied Optics 7(9), 2005, pp. 514–518, DOI: 10.1088/1464-4258/7/9/011.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-e0f4215c-f49d-47a8-950f-723c86f1eab4
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.