POLARIZING PLATE PROTECTION FILM FOR LIQUID CRYSTAL DISPLAY

• Main Author: NA, JAE HO
• Format: Patent
• Language: English
• Published: 25.09.2008
• 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 polarizing plate protection film for a liquid crystal display device is provided to reduce assembling time without a process of attaching a detached tape and prevent inflow of foreign matters by integrating a detached part at one end of the film and combining a polarizing plate with a liquid crystal panel by pulling down the detached part. A liquid crystal display device comprises a liquid crystal panel(100), a backlight unit(200), polarizing plates(300), and polarizing plate protection films(400). The liquid crystal panel includes liquid crystal cells which are arranged like a matrix between upper and lower glass substrates, and switch devices for switching signals supplied to the liquid crystal cells. The backlight unit has a driving circuit part, a lamp, a reflector, a light guide, diffusers, and a sheet of a prism for supplying light beam to the liquid crystal panel. The polarizing plates are placed at upper and lower sides of the two glass substrates of the liquid crystal panels. The polarizing plates convert polarizing features of the light beam of the backlight unit. The polarizing plate protection films protect the polarizing plates. A detached part(410), which extends from one end of the polarizing plate protection film, is pulled down to remove the film and to combine the polarizing plate with the liquid crystal panel.