According to the present invention, a method for manufacturing a window cover for a display device, wherein although the window cover is manufactured by injection compression molding, the window cover having a reduced retardation value may be manufactured by adjusting a compression factor. A plane-side retardation value of the window cover manufactured by the manufacturing method of the present invention is 50 nm or less, and the 45°-side retardation value is 270 nm or less. In the present invention, retardation can be reduced by adjusting a compression rate during the manufacture of the window cover.
본 발명의 디스플레이 장치용 윈도우 커버의 제조 방법은 윈도우 커버를 사출 압축 성형에 의해 제조하되, 압축 인자를 조절하여 리타데이션 값이 저감된 윈도우 커버를 제조할 수 있다. 본 발명의 제조 방법으로 제조된 윈도우 커버의 평면측 리타데이션 값은 50nm 이하이고, 45°측의 리타데이션 값은 270nm 이하이다. 본 발명은 윈도우 커버의 제조시 압축 속도를 조절함으로써 리타데이션을 저감시킬 수 있다.
Manufacturing method of Window cover for display device and window cover
디스플레이 장치용 윈도우 커버의 제조 방법 및 디스플레이 장치용 윈도우 커버
2022-03-16
Patent
Electronic Resource
Korean
IPC: | B29C Formen oder Verbinden von Kunststoffen , SHAPING OR JOINING OF PLASTICS / B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM , Schichtkörper, d.h. aus Ebenen oder gewölbten Schichten, z.B. mit zell- oder wabenförmiger Form, aufgebaute Erzeugnisse / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / B29D PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE , Herstellen besonderer Gegenstände aus Kunststoff oder aus Stoffen in plastischem Zustand |
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