Light-Diffusing Lens and Backlight Unit and Display Device having the same

Light-Diffusing Lens and Backlight Unit and Display Device having the same

The present invention relates to a light diffusion lens, a backlight unit and a display device having the same. A prominent diffusion plate supporting part is formed on the upper part of the light diffusion lens arranged on a backlight unit light source to support the diffusion plate, thereby simpli...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: SEO, BYUNG HYUCK
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:The present invention relates to a light diffusion lens, a backlight unit and a display device having the same. A prominent diffusion plate supporting part is formed on the upper part of the light diffusion lens arranged on a backlight unit light source to support the diffusion plate, thereby simplifying the structure of a backlight unit and a display device and reducing manufacturing costs since an additional diffusion plate support (DFS) is not needed. The present invention also reduces an optical gap (OG), which is a gap between the light source and the diffusion plate, to reduce the thicknesses of the backlight unit and a liquid crystal display device including the same. 본 발명은 광학산 렌즈 및 그를 포함하는 백라이트 유닛과 표시장치에 관한 것으로서, 백라이트 유닛 광원상에 배치되는 광확산 렌즈의 상부에 돌출구조인 확산판 지지부를 형성하여 확산판을 지지하게 함으로써, 별도의 확산판 서포트(DPS)가 필요없게 되어 백라이트 유닛 및 표시장치의 구조가 단순해지고 제조 비용이 절감시키고, 광원과 확산판 사이의 간극인 광학갭(Optical Gap; OG)을 감소시켜 백라이트 유닛 및 그를 포함하는 액정 표시장치의 두께를 감소시킬 수 있다.