DISPLAY DEVICE AND LARGE DISPLAY DEVICE INDLUDING THE SAME

According to an embodiment of the present invention, a display device includes: a light source member including a light-emitting unit emitting a first color light; an optical member disposed above the light source member; and a display panel disposed above the optical member. The optical member incl...

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Bibliographische Detailangaben
Hauptverfasser:	AN JAE SUL, SON JUYOUN, KIM DOHUN
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	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 NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
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Beschreibung
Zusammenfassung:	According to an embodiment of the present invention, a display device includes: a light source member including a light-emitting unit emitting a first color light; an optical member disposed above the light source member; and a display panel disposed above the optical member. The optical member includes: a base substrate; a fiber diffusion layer disposed on a base substrate and comprising a nonwoven fabric; and a filter layer disposed below the base substrate and having different reflectance or transmittance according to an incident angle of light at a specific wavelength. The base substrate has a thermal expansion coefficient lower than thermal expansion coefficients of the fiber diffusion layer and the filter layer. Accordingly, the present invention can reduce an optical distance. 본 발명의 일 실시예에 따른 표시 장치는 제1 색광을 방출하는 발광 유닛을 포함하는 광원 부재, 상기 광원 부재의 상측에 배치된 광학 부재 및 상기 광학 부재의 상측에 배치된 표시 패널을 포함하고, 상기 광학 부재는 베이스 기판, 상기 베이스 기판 상에 배치되고 부직포를 포함하는 섬유 확산층 및 상기 베이스 기판의 하측에 배치되고 특정파장에서 광의 입사각도에 따라 반사율 또는 투과율을 달리하는 필터층을 포함하며, 상기 베이스 기판은 상기 섬유 확산층 및 상기 필터층의 열팽창 계수보다 낮은 열팽창 계수를 갖는다. 따라서, 본 발명은 광학 거리를 감소시킬 수 있다.