OPTICAL COMPOSITE SHEET AND DISPLAY DEVICE COMPRISING SAME

• Main Authors: CHOE YONG JAE, KIM TAE HOON, BAN JAE HUN, CHO KYOO CHOONG
• Format: Patent
• Language: English; Korean
• Published: 10.01.2023
• Subjects: BLASTING; DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; FREQUENCY-CHANGING; FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF; HEATING; LIGHTING; MECHANICAL ENGINEERING; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; WEAPONS

According to an embodiment, an optical composite sheet comprises: a prism sheet; and a UV curing layer. The UV curing layer is disposed as the outermost layer on one surface of the prism sheet. The UV curing layer includes a light absorber that selectively absorbs light in a specific wavelength band. The light absorber includes one or more organic dyes. The optical composite sheet according to the embodiment may be applied to a backlight unit of a display device such as an LCD so as to increase performance. 일 구현예에 따른 광학 복합 시트는 프리즘 시트; 및 UV 경화층을 포함하고, 상기 UV 경화층은 상기 프리즘 시트의 일면 상에 최외곽층으로 배치되며, 상기 UV 경화층은 특정 파장 대역의 광을 선택적으로 흡수하는 광 흡수제를 포함하고, 상기 광 흡수제는 1종 이상의 유기 염료를 포함한다. 상기 구현예에 따른 광학 복합 시트는 LCD와 같은 표시 장치의 백라이트 유닛에 적용되어 성능을 향상시킬 수 있다.