BACKLIGHT DEVICE, AND LIQUID CRYSTAL DISPLAY DEVICE

• Main Authors: OKADA NAOTADA, KITAGAWA TOSHITAKE
• Format: Patent
• Language: English
• Published: 14.08.2008
• Subjects: BASIC ELECTRIC ELEMENTS; 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; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; 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; SEMICONDUCTOR DEVICES; 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 backlight device capable of restraining generation of color unevenness on a light guide plate. SOLUTION: The backlight device 20 includes a plurality of LED packages 32, and a light guide plate 22. Each LED package 32 is provided with a third housing 33, a red LED 34, a blue LED 35 and a green LED 36. The LEDs 34, 35, 36 are housed inside the third housing 33 and arranged at a bottom wall part 26 of the third housing 33. At least a part of arrangement of the LEDs 34, 35, 36 against an incident face 28 of the light guide plate 22 is different from that of adjacent LED packages 32. COPYRIGHT: (C)2008,JPO&INPIT