Optical density measurement of TFT-LCD by PMT coupled monochrome LED

Fu Ming Tzu; Jung Hua Chou

doi:10.1109/EMAP.2008.4784230

Optical density measurement of TFT-LCD by PMT coupled monochrome LED

Fu Ming Tzu, Jung Hua Chou

Department of Engineering Science

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

2 Citations (Scopus)

Abstract

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.

Original language	English
Title of host publication	2008 10th International Conference on Electronic Materials and Packaging, EMAP 2008
Pages	65-68
Number of pages	4
DOIs	https://doi.org/10.1109/EMAP.2008.4784230
Publication status	Published - 2008 Dec 1
Event	2008 10th International Conference on Electronic Materials and Packaging, EMAP 2008 - Taipei, Taiwan Duration: 2008 Oct 22 → 2008 Oct 24

Publication series

Name	2008 10th International Conference on Electronic Materials and Packaging, EMAP 2008

Other

Other	2008 10th International Conference on Electronic Materials and Packaging, EMAP 2008
Country/Territory	Taiwan
City	Taipei
Period	08-10-22 → 08-10-24

All Science Journal Classification (ASJC) codes

Hardware and Architecture
Electrical and Electronic Engineering
Mechanical Engineering

Access to Document

10.1109/EMAP.2008.4784230

Cite this

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title = "Optical density measurement of TFT-LCD by PMT coupled monochrome LED",

abstract = "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.",

author = "Tzu, {Fu Ming} and Chou, {Jung Hua}",

year = "2008",

month = dec,

day = "1",

doi = "10.1109/EMAP.2008.4784230",

language = "English",

isbn = "9781424436217",

series = "2008 10th International Conference on Electronic Materials and Packaging, EMAP 2008",

pages = "65--68",

booktitle = "2008 10th International Conference on Electronic Materials and Packaging, EMAP 2008",

note = "2008 10th International Conference on Electronic Materials and Packaging, EMAP 2008 ; Conference date: 22-10-2008 Through 24-10-2008",

}

Tzu, FM & Chou, JH 2008, Optical density measurement of TFT-LCD by PMT coupled monochrome LED. in 2008 10th International Conference on Electronic Materials and Packaging, EMAP 2008., 4784230, 2008 10th International Conference on Electronic Materials and Packaging, EMAP 2008, pp. 65-68, 2008 10th International Conference on Electronic Materials and Packaging, EMAP 2008, Taipei, Taiwan, 08-10-22. https://doi.org/10.1109/EMAP.2008.4784230

Optical density measurement of TFT-LCD by PMT coupled monochrome LED. / Tzu, Fu Ming; Chou, Jung Hua.

2008 10th International Conference on Electronic Materials and Packaging, EMAP 2008. 2008. p. 65-68 4784230 (2008 10th International Conference on Electronic Materials and Packaging, EMAP 2008).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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.

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Y2 - 22 October 2008 through 24 October 2008

ER -

Optical density measurement of TFT-LCD by PMT coupled monochrome LED

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