서지주요정보
LCD(liquid crystal display) backlight용 면방전형 Xe 플라즈마 평판 램프의 방전 특성에 관한 연구 = Investigation of the discharge characteristics of coplanar type Xe plasma flat lamp for LCD backlight
서명 / 저자 LCD(liquid crystal display) backlight용 면방전형 Xe 플라즈마 평판 램프의 방전 특성에 관한 연구 = Investigation of the discharge characteristics of coplanar type Xe plasma flat lamp for LCD backlight / 권아람.
저자명 권아람 ; Kwon, Ah-Ram
발행사항 [대전 : 한국과학기술원, 2003].
Online Access 원문보기 원문인쇄

소장정보

등록번호

8013992

소장위치/청구기호

학술문화관(문화관) 보존서고

MMS 03006

휴대폰 전송

도서상태

이용가능

대출가능

반납예정일

초록정보

Conventional liquid crystal display (LCD) backlight consisting of the cold cathode fluorescence lamp (CCFL) has become more difficult to get uniform luminance as displays become larger sizes. Also it has employed mercury (Hg) causing environmental pollution as a discharge gas. The flat lamp using Xe gas instead of Hg as ultraviolet (VUV) sources is regarded as one of the solutions to solve these problems. However, Xe plasma flat lamp has demerits such as lower luminance and poor luminous efficiency of the lamp. In this study, a coplanar type Xe plasma flat lamp with a tooth-like electrode pattern and a dielectric barrier discharge was investigated. The manufacture of electrode, dielectric and phosphor layer on the bottom glass was sequentially carried out by the screen printing method. Xe-He gas system and Xe-Ne gas system was adopted as discharge gases. The discharge characteristics of the lamp were investigated with various parameters such as gas pressure, gas composition and input pulse shapes such as applied voltage, pulse frequency and trigger pulse on-time. Also, discharge characteristics of the lamp were examined into effects of the electric dielectrics and electrode patterns. High luminance and luminous efficiency were obtained such conditions that the Xe excitation was increased. Such conditions were obtained by the increment of Xe partial pressure and the use of helium (He) as a buffer gas. However, in these conditions, sustain voltage was increased. Low luminance of the lamp was obtained when the power consumption decreased due to the decrease of the input pulse frequency and input voltage although they lead higher luminous efficiency of the lamp. Other conditions to improve luminous efficiency were the use of the phosphor as dielectric materials and the electrode pattern obtaining larger triangular discharge shapes. Luminous uniformity was improved when the discharge generated in front of the tips had triangular shapes rather than line shapes and larger triangular shapes than small shapes.

서지기타정보

서지기타정보
청구기호 {MMS 03006
형태사항 iv, 92 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Ah-Ram Kwon
지도교수의 한글표기 : 이원종
지도교수의 영문표기 : Won-Jong Lee
학위논문 학위논문(석사) - 한국과학기술원 : 재료공학과,
서지주기 참고문헌 : p. 91-92
주제 LCD backlight
Xe
면방전형 플라즈마 평판 램프
LCD backlight
Xe
coplanar type
discharge
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