ILLUMINATION DEVICE, DISPLAY DEVICE, AND TELEVISION RECEIVER DEVICE

• Main Authors: YAMAKAWA RYO, TANAKA KUNIAKI
• Format: Patent
• Language: English; French; Japanese
• Published: 10.10.2013
• 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; ELECTRIC COMMUNICATION TECHNIQUE; 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; NON-PORTABLE LIGHTING DEVICES; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; PICTORIAL COMMUNICATION, e.g. TELEVISION; 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

A backlight device (illumination device (12)) comprises: a plurality of LEDs (light sources (17)); a light guide plate (19) in which an end face (light entry face (19b)) forms a facing shape with the plurality of LEDs (17) and, with respect to light from the plurality of LEDs (17) which enters therein, outputs light from a plate face (light exit face (19a)); an LED substrate (light source substrate (18)) whereupon the plurality of LEDs (17) are positioned in a state of being aligned with interstices therebetween along the end face of the light guide plate (19); a chassis (member for attachment (14)) whereupon the LED substrate (18) is attached; a screw member (substrate attachment member (22)) which is positioned between the LEDs (17) which are mutually adjacent among the plurality of LEDs (17) and which attaches the LED substrate (18) to the chassis (14); and a plurality of position gap fluctuating LEDs (position gap fluctuating light sources (24)) which are included in the plurality of LEDs (17) and with which position gaps (P1-P3) narrow the further away they are from the screw member (22). La présente invention concerne un dispositif de rétroéclairage (dispositif d'éclairage (12)) qui comprend : une pluralité de DEL (sources de lumière (17)) ; une plaque de guidage lumineux (19) dans laquelle une face d'extrémité (face d'entrée de lumière (19b)) est formée face à la pluralité de DEL (17) et, par rapport à la lumière provenant de la pluralité de DEL (17) qui entre dans celle-ci, émet une lumière à partir d'une face de plaque (face de sortie de la lumière (19a)) ; un substrat de DEL (substrat de sources de lumière (18)) sur lequel la pluralité de DEL (17) est positionnée dans un état aligné, des interstices se trouvant entre celles-ci le long de la face d'extrémité de la plaque de guidage lumineux (19) ; un châssis (élément de fixation (14)) sur lequel le substrat (18) de DEL est fixé ; un élément de vis (élément de fixation de substrat (22)) qui est positionné entre les DEL (17) qui sont mutuellement adjacentes parmi les DEL de la pluralité de DEL (17) et qui fixe le substrat de DEL (17) au châssis ; et une pluralité de DEL à fluctuation d'espace de position (sources de lumière à fluctuation d'espace de position (24)) qui sont incluses dans la pluralité de DEL (17) et avec lesquelles des espaces de position (P1 à P3) rétrécissent au fur et à mesure qu'ils s'éloignent de l'élément de vis (22).