PLANE LIGHT SOURCE
PROBLEM TO BE SOLVED: To provide a plane light source to be used for a liquid crystal display device or the like in which leaked light or partially bright portion do not occur even if a device is miniaturized and a panel brightness does not become uneven. SOLUTION: The plane light source is provided...
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| creator | YASUMOTO TAIZO YAMAGUCHI YOSHINORI MORITA YOSHIKUNI |
| description | PROBLEM TO BE SOLVED: To provide a plane light source to be used for a liquid crystal display device or the like in which leaked light or partially bright portion do not occur even if a device is miniaturized and a panel brightness does not become uneven. SOLUTION: The plane light source is provided with a light source 2 and a light guide plate 3 which is of a mostly plane shape in an entire view and in which light incident form a side of a base end surface 3a is reflected at a rear surface 3d and/or a far end surface 3b and is discharged from a light emitting surface 3c. A light collecting structure 4 having a light collecting function is provided near the base end surface 3a, or there is provided a light collecting structure 4 in which a mirror structure 5 is arranged near the base end surface 3a and which has a light collecting function near an end edge of a side of the base end surface of the light emitting surface 3c or a rear surface 3d, and an angle of a corner made by the light emitting surface 3c of the light guide plate 3 and the base end surface 3a is within a specific range, and the light source 2 is arranged above or below the base end surface 3a. COPYRIGHT: (C)2009,JPO&INPIT |
| format | Patent |
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SOLUTION: The plane light source is provided with a light source 2 and a light guide plate 3 which is of a mostly plane shape in an entire view and in which light incident form a side of a base end surface 3a is reflected at a rear surface 3d and/or a far end surface 3b and is discharged from a light emitting surface 3c. A light collecting structure 4 having a light collecting function is provided near the base end surface 3a, or there is provided a light collecting structure 4 in which a mirror structure 5 is arranged near the base end surface 3a and which has a light collecting function near an end edge of a side of the base end surface of the light emitting surface 3c or a rear surface 3d, and an angle of a corner made by the light emitting surface 3c of the light guide plate 3 and the base end surface 3a is within a specific range, and the light source 2 is arranged above or below the base end surface 3a. 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SOLUTION: The plane light source is provided with a light source 2 and a light guide plate 3 which is of a mostly plane shape in an entire view and in which light incident form a side of a base end surface 3a is reflected at a rear surface 3d and/or a far end surface 3b and is discharged from a light emitting surface 3c. A light collecting structure 4 having a light collecting function is provided near the base end surface 3a, or there is provided a light collecting structure 4 in which a mirror structure 5 is arranged near the base end surface 3a and which has a light collecting function near an end edge of a side of the base end surface of the light emitting surface 3c or a rear surface 3d, and an angle of a corner made by the light emitting surface 3c of the light guide plate 3 and the base end surface 3a is within a specific range, and the light source 2 is arranged above or below the base end surface 3a. COPYRIGHT: (C)2009,JPO&INPIT</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | BLASTING 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 STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR WEAPONS |
| title | PLANE LIGHT SOURCE |
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