LIQUID CRYSTAL DISPLAY DEVICE

• Main Authors: GOTO SO, IWASAKI WATARU
• Format: Patent
• Language: English
• Published: 11.03.2010
• 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; INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21Sand F21V, RELATING TO THEFORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THELIGHT EMITTED; 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

PROBLEM TO BE SOLVED: To provide a liquid crystal display device which can be miniaturized by reducing the number of components. SOLUTION: An upper case 2 is formed of reflective material, a first opposite wall 17 opposite to an outer peripheral surface of a light guide plate 7 is vertically disposed in one body and, in the first opposite wall 17, a liquid crystal cell 5 etc. is stored. A printed circuit board 9 on which LEDs functioning as backlights are mounted is attached to the upper case 2 so as to cover the light guide plate 7 by using an elastic engagement piece 19. Light emitted from the LEDs is introduced into the light guide plate 7 from a light guide 7e of the light guide plate 7, diffused by a diffusion sheet 6 and, thereafter, illuminated to the liquid crystal cell 5 from the back. COPYRIGHT: (C)2010,JPO&INPIT