BACKLIGHT DEVICE, DISPLAY, ELECTRONIC EQUIPMENT, AND METHOD FOR DRIVING BACKLIGHT

PROBLEM TO BE SOLVED: To provide a backlight device reducing a steep brightness change in a boundary portion between adjoining split regions without increasing the load on a driving system, and to provide a display mounted with the backlight device, electronic equipment, and a method for driving the...

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Bibliographische Detailangaben
1. Verfasser:	YOKOMIZO KANJI
Format:	Patent
Sprache:	eng
Schlagworte:	ADVERTISING ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION BLASTING CRYPTOGRAPHY 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 DISPLAY EDUCATION 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 SEALS 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
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a backlight device reducing a steep brightness change in a boundary portion between adjoining split regions without increasing the load on a driving system, and to provide a display mounted with the backlight device, electronic equipment, and a method for driving the backlight. SOLUTION: A block brightness value calculating section 51 calculates a brightness value in each of 40 section light source blocks 6, that is, of each section light source block 6, based on a brightness signal detected by a brightness signal detecting circuit. A brightness value calculating section 52 calculates a brightness value of each light source 5B, which is a light source except for a representative light source and disposed around the representative light source 5A, based on the calculated representative brightness value. A whole brightness value output section 53 outputs the data of the representative brightness of the calculated representative light source 5A and the data of whole brightness values of the respective calculated light sources 5B to a backlight driving section 10. Thereby, a steep brightness change in a boundary portion between adjoining section light source blocks 6 can be reduced. COPYRIGHT: (C)2010,JPO&INPIT