LIQUID CRYSTAL MODULE

• Main Author: IMADA YUJI
• Format: Patent
• Language: English
• Published: 11.09.2008
• 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; NON-PORTABLE LIGHTING DEVICES; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR; SYSTEMS THEREOF; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLEEXTERIORS; WEAPONS

PROBLEM TO BE SOLVED: To provide a liquid crystal module having excellent heat radiation properties, without reducing luminance of a liquid crystal display panel due to degradation in light emission efficiency and light reflection efficiency of light sources nor increasing the number of components and assembling man-hours. SOLUTION: The liquid crystal module is provided in which the light sources 3 are provided inside a frame 1, at least the liquid crystal display panel 6 is disposed before the light sources 3 and attached to a front aperture part of the frame 1 and a light reflection sheet 2 is provided behind the light sources 3. In the liquid crystal module, through holes 1c for heat radiation and ventilation are formed in a rear wall 1a of the frame and the light reflection sheet 2 is provided so that small gaps 10 are formed between the light reflection sheet 2 and side walls 1d of the frame and a ventilation space 9 is formed between the light reflection sheet 2 and the rear wall 1a. Air heated by heat of the light sources 3 is discharged from the through holes 1c through the small gaps 10 and the ventilation space 9 to increase heat radiation properties and degradation in light emission efficiency caused by temperature rise of the light sources 3 is prevented to prevent the reduction in luminance of the liquid crystal display panel 6. COPYRIGHT: (C)2008,JPO&INPIT