研究生: |
孫浚豪 SUN, Chun-Hao |
---|---|
論文名稱: |
可用於大尺寸曲面液晶顯示器之高效率背光模組設計 High-efficiency backlight for the large-sized curved LCD |
指導教授: |
鄧敦建
Teng, Tun-Chien |
學位類別: |
碩士 Master |
系所名稱: |
機電工程學系 Department of Mechatronic Engineering |
論文出版年: | 2017 |
畢業學年度: | 105 |
語文別: | 中文 |
論文頁數: | 65 |
中文關鍵詞: | 曲面液晶顯示器 、色光分色 、偏極化 |
英文關鍵詞: | curved LCD, color separation, polarization |
DOI URL: | https://doi.org/10.6345/NTNU202202773 |
論文種類: | 學術論文 |
相關次數: | 點閱:145 下載:2 |
分享至: |
查詢本校圖書館目錄 查詢臺灣博碩士論文知識加值系統 勘誤回報 |
本論文研究目標為設計整合偏光片及彩色濾光片之功能,且具有曲面導光板之大尺寸LCD背光模組。為因應現今市場需求,輕薄化、低耗能、窄邊框設計是必備條件外,顯示器外型與視覺感受度也是消費者考量的因素。近年來推出許多曲面顯示器,曲面螢幕除了在外型上有更好的設計美感,曲面弧度的設計能符合人體眼球弧形,加上藉由曲面環繞的關係,擁有更廣泛之視角、較佳的對比度,讓觀賞者有沉浸在畫面的感受,能使觀賞者有更好的視覺體驗。
在液晶顯示器中,光源經偏光片偏振化處理時約吸收50%能量,彩色濾光片吸收70%,因此從背光模組中發出的光只有13%~15%能通過LC面板傳輸。本論文設計之背光模組中具有曲面外型,已整合偏振態及色光分色,以代替偏光片及彩色濾光片的功能,最終出光面偏振率可達90%以上,整體能量效率也可提升至四倍 。
The purpose of this paper is to design a large-sized curved LCD backlight module integrated polarizer and color filter. For the market responded,the LCDs must be lightweight,thin,low energy consumption and narrow border. LCD appearance and visual perception both are considerations of consumer. In recent years,there are many curved LCDs be launched. In addition to the appearance of the screen in a better design aesthetic,curvature of the surface design can meet the human eye arc,coupled with the surface surrounded by the relationship,with a wider perspective,better contrast,so that viewers are immersed in picture of the feelings,which can be better visual experience.
[1] https://zh.wikipedia.org/wiki/液晶显示器
[2] https://zh.wikipedia.org/wiki/偏光片
[3] http://www.nanosysinc.com/#lcd-revolution
[4] http://www.cnblogs.com/BEETLE-SY/p/3437863.html
[5] https://www.e-education.psu.edu/eme812/node/558
[6] http://sscpusa.com/tds/PC350LC_160128.pdf
[7] T. C. Teng and L. W. Tseng, “Slim planar apparatus for converting LED light into collimated polarized light uniformly emitted from its top surface.” OSA,
Vol.22(S6),pp. A1477-A1490.(2014)
[8] T. C. Teng and L. W. Tseng, ”Planar apparatus for uniformly emitting light with angular color-separation” OSA,Vol.23, No.11.(2015)
[9] P. C. Chen, H .H. Lin, C. H. Chen, C. H. Lee ,and M .H . Lu, “Color separation system with angularly positioned light source module for pixelized backlighting” OSA,Vol.18(S2),pp.645-655.(2010)
[10] Y. Li, T. X. Wu, and S. T. Wu, “Design optimization of reflective polarizers for LCD backlight recycling,” J.Disp. Technol. 5(8), 335–340.(2009)
[11] T. Liu, J. Wheatley, M. O’Neill, and M. E. Sousa, “Edge-lit hollow backlight using tunable reflective polarizer for liquid crystal displays,” SID 09 Digest 40(1), 819–822.(2009)
[12] C. H. Chen, P. C. Chen, and C. C. Chen, “High extinction ratio polarized light guide with layered cross stacking nanostructure,” Microelectron. Eng. 86(4-6), 1107–1110. (2009)
[13] X. Yang, Y. Yan, and G. Jin, “Polarized light-guide plate for liquid crystal display,” Opt. Express 13(21), 8349–8356.(2005)
[14] C. W. Liu, C. H. Lee, C. J. Ting, T. H. Lin, and S. C. Lin, “Roll-to-Roll Process-Based Sub-Wavelength Grating for a Color-Separation Backlight,”J. Displ. Techno. 9(7), 561–564. (2013)
[15] A. Travis, T. Large, N. Emerton, and S. Bathiche, “Collimated light from a waveguide for a display backlight” Opt. Express 17(22),19714–19719 (2009).
[16] H. Dammann, “Color separation gratings,” Appl. Opt. 17(15), 2273–2279 (1978)
[17] T. C. Teng, W. S. Sun, L. W. Tseng, and W. C. Chang, “A slim apparatus of transferring discrete LEDs’ light into an ultra-collimated planar light source,” Opt. Express 21(22), 26972–26982.(2013)
[18] K. Nakamura, T. Fuchida, K. Yamagata, A. Nishimura, T. Takita, and H. Takemoto, “Optical design of front diffuser for collimated backlight and front diffusing system,” IDW 11, 475–478.(2011)
[19]M. Xu, H. P. Urbach, and D. K. de Boer,” Simulations of birefringent gratings as polarizing color separator in backlight for flat-panel displays”, Optics Express Vol.15(S9),pp.5789-5800.(2007)