Development of cost‐effective and high‐property mask in Flatron

Jong Mok Song LG Electronics Inc., Display Device Research Laboratory, 184, Kongdan 1‐dong, Kumi‐city, Kyoun Buk, 730–030, Korea Phone: +54 460–3287 Fax: +54 460–3287 E-mail: [email protected]

Byoung Nam Kim LG Electronics Inc., Display Device Research Laboratory, 184, Kongdan 1‐dong, Kumi‐city, Kyoun Buk, 730–030, Korea

Nam Je Koh Member LG Electronics Inc., Display Device Research Laboratory, 184, Kongdan 1‐dong, Kumi‐city, Kyoun Buk, 730–030, Korea

Hyun Tae Chun LG Electronics Inc., Display Device Research Laboratory, 184, Kongdan 1‐dong, Kumi‐city, Kyoun Buk, 730–030, Korea

Ki Bum Park LG Electronics Inc., Display Device Research Laboratory, 184, Kongdan 1‐dong, Kumi‐city, Kyoun Buk, 730–030, Korea

Abstract

We developed the tension mask of which thickness increased from 25 um to 50 um to reduce the mask cost and improve the vibration property. First of all, the limitation by which rail structure can support is calculated and the optimal thickness of mask is determined. To prevent the reduction of brightness and brightness uniformity, the dimensions of mask was reassigned. As a result, the increase of mask thickness brought about a reduction in cost and improvement of howling property which had been a weak point of flat CRTs.

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Development of cost‐effective and high‐property mask in Flatron

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