BACKLIGHT UNIT AND A LIQUID CRYSTAL DISPLAY DEVICE INCLUDING THE SAME

• Main Authors: Lim, Ho, Lee, Seulgee, Kim, Kaeun, Seo, Bongsung, Kim, Taemin, Suh, Duckjong
• Format: Patent
• Language: English; French; German
• Published: 29.07.2020
• 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 LOGIC ELEMENTS; OPTICS; PHYSICS; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; WEAPONS

A backlight unit includes: a light guiding member including an incident surface on which light is incident and an exit surface from which the light is emitted; a light source adjacent to the incident surface of the light guiding member and configured to generate the light; a low refraction layer disposed on the exit surface of the light guiding member; a color conversion layer disposed on the low refraction layer; and an optical layer disposed on the color conversion layer, wherein the optical layer has a pencil hardness of 4 H or greater.