TY - GEN
T1 - Optical density measurement of TFT-LCD by PMT coupled monochrome LED
AU - Tzu, Fu Ming
AU - Chou, Jung Hua
PY - 2008/12/1
Y1 - 2008/12/1
N2 - A fast and innovative method using a monochromatic red LED to measure the optical density of black matrix is developed in this study. The results show that the 3-Watt monochromatic red LED performs better than that of the currently used 100-Watt halogen lamp by reducing the pumping speed by 40% and the 3-sigma standard deviation of the test samples is also superior by 40%. The measurement difference for average OD values is within 1% between both light sources. In addition, using standard glass, the monochromatic red LED demonstrates accuracy within 1.58%. Therefore, the monochromatic red LED can substitute the halogen lamp currently used the TFT-LCD industry to measure the optical density of BM layer.
AB - A fast and innovative method using a monochromatic red LED to measure the optical density of black matrix is developed in this study. The results show that the 3-Watt monochromatic red LED performs better than that of the currently used 100-Watt halogen lamp by reducing the pumping speed by 40% and the 3-sigma standard deviation of the test samples is also superior by 40%. The measurement difference for average OD values is within 1% between both light sources. In addition, using standard glass, the monochromatic red LED demonstrates accuracy within 1.58%. Therefore, the monochromatic red LED can substitute the halogen lamp currently used the TFT-LCD industry to measure the optical density of BM layer.
UR - http://www.scopus.com/inward/record.url?scp=64049090396&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=64049090396&partnerID=8YFLogxK
U2 - 10.1109/EMAP.2008.4784230
DO - 10.1109/EMAP.2008.4784230
M3 - Conference contribution
AN - SCOPUS:64049090396
SN - 9781424436217
T3 - 2008 10th International Conference on Electronic Materials and Packaging, EMAP 2008
SP - 65
EP - 68
BT - 2008 10th International Conference on Electronic Materials and Packaging, EMAP 2008
T2 - 2008 10th International Conference on Electronic Materials and Packaging, EMAP 2008
Y2 - 22 October 2008 through 24 October 2008
ER -