디스플레이용 유리의 눈부심 현상 억제를 위한 표면 에칭 및 돌기 형성에 관한 연구
Study on surface etching and projection formation to control the glare of display glass
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디스플레이용 유리를 통해 문자나 이미지를 뚜렷하고 빠르게 인식하기 위해서는 유리의 눈부심 현상(glare)을억제해야 한다. 본 연구 연구에서는 에칭공정을 통해 유리 표면 형상 및 광학 특성 변화를 분석하여 눈부심 현상을 낮추고자 하였다. 에칭 공정은 에칭 용액인 BOE 및 HF의 농도를 변수로 수행하였다. 에칭과정에서 유리 표면에 F 이온이 포함된화합물이 생성되어 돌기(projection) 형태로 불규칙한 패턴을 형성되었고, 이로 인해 유리의 광학적 특성이 변화되었다; 반사율은 2.5~4.6 %, 탁도는 4.5~6.6 %, 투과율은 7 7~9 2%, 그리고 광택도는 82~107GU 범위. 그 결과 유리의 눈부심 현상을억제하면서도 다른 광학적 특성의 손실을 최소화하는 에칭 조건을 확보하였다.
Abstract
In order to quickly and clearly recognize characters or images through display glass, glare of the glass must besuppressed. In this study, we tried to reduce glare by analyzing changes in glass surface shape and optical propertiesthrough etching process. The etching process was performed as a function of concentrations of the etching solutions, BOEand HF. During the etching process, a compound containing F ion was generated on the surface of the glass, forming anirregular pattern in the form of a projection, and thus various optical properties of the glass were changed; reflectance of2.5~4.6 %, haze of 4.5~6.6 %, transmittance of 77~92 %, and gloss of 82~107 GU. As a result, optimum etching conditionwas obtained to minimize the loss of other optical properties while suppressing glare of the glass.
참고문헌 (14)
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