Monolithic diffuser plate, and backlight unit and liquid crystal display device using the same

• Main Authors: Park, Jongwan, Park, Kiduck, Chung, Donghyun, Park, Junsoo
• Format: Patent
• Language: English
• Published: 31.07.2018
• Subjects: 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 ELEMENTS, SYSTEMS, OR APPARATUS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF

A monolithic diffuser plate for a backlight unit or a liquid crystal display (LCD) device can include a base substrate made of transparent glass, a monolithic diffusion sheet part integrated on a front surface of the base substrate, and a hiding diffusion part integrated on a rear surface of the base substrate for increasing a hiding power of the base substrate. The monolithic diffuser plate can increase a hiding power for hiding individual light sources in a backlight unit, prevent deformations caused by temperature variations and surrounding environmental factors, and minimize the thickness of a product using the monolithic diffuser plate while also increasing the reliability the product.