TY - JOUR
T1 - Highly scattering optical transmission polymer and its application for LCD display
AU - Okumura, Takamitsu
AU - Tagaya, Akihiro
AU - Koike, Yasuhiro
PY - 2002/1/1
Y1 - 2002/1/1
N2 - We have developed a highly scattering optical transmission (HSOT) polymer, and have succeeded in applying it to a highly efficient backlight in liquid crystal displays (LCDs). In the present work, a multiple scattering modeling simulation has been developed. Also the effects of adjacent particles inside the HSOT polymer are demonstrated. Although Mie scattering theory is based on the assumption that there exists one particle, light scattering intensity profiles are extended by adjacent particles in measurement data. In order to improve the multiple scattering modeling simulation, light scattering intensity profiles calculated by Mie scattering theory are modified by using the experimental correction function. It follows that the numerical calculation improved by taking account of the adjacent particles has precisely reproduced multiple scattering phenomena inside the HSOT polymer. Based upon the results of multiple scattering analysis, an optimal design has been developed and applied to an LCD backlight system. By altering the internal particle condition, uniformity of color and brightness on the top face of the backlight can has been achieved.
AB - We have developed a highly scattering optical transmission (HSOT) polymer, and have succeeded in applying it to a highly efficient backlight in liquid crystal displays (LCDs). In the present work, a multiple scattering modeling simulation has been developed. Also the effects of adjacent particles inside the HSOT polymer are demonstrated. Although Mie scattering theory is based on the assumption that there exists one particle, light scattering intensity profiles are extended by adjacent particles in measurement data. In order to improve the multiple scattering modeling simulation, light scattering intensity profiles calculated by Mie scattering theory are modified by using the experimental correction function. It follows that the numerical calculation improved by taking account of the adjacent particles has precisely reproduced multiple scattering phenomena inside the HSOT polymer. Based upon the results of multiple scattering analysis, an optimal design has been developed and applied to an LCD backlight system. By altering the internal particle condition, uniformity of color and brightness on the top face of the backlight can has been achieved.
KW - Backlight light guide
KW - Color uniformity
KW - Liquid crystal display
KW - Mie scattering theory
KW - Monte carlo method
KW - Multiple scattering
KW - Optimal design
UR - http://www.scopus.com/inward/record.url?scp=18744374453&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=18744374453&partnerID=8YFLogxK
U2 - 10.1117/12.483058
DO - 10.1117/12.483058
M3 - Conference article
AN - SCOPUS:18744374453
SN - 0277-786X
VL - 4918
SP - 44
EP - 51
JO - Proceedings of SPIE - The International Society for Optical Engineering
JF - Proceedings of SPIE - The International Society for Optical Engineering
T2 - Materials, Devices, and Systems for Display and Lighting
Y2 - 15 October 2002 through 17 October 2002
ER -