ILLUMINATION DEVICE AND LIQUID CRYSTAL DISPLAY DEVICE
1 Assignment
0 Petitions
Accused Products
Abstract
An illumination device includes an LED package, an LED driver including an FET, and a thermistor disposed on a substrate. A plurality of such LED packages are disposed on the substrate such that a first area and a second area, each determined by vertices corresponding to LED packages, are defined on the substrate. The thermistor is disposed in the first area, and the FET is disposed in the second area, which is outside of the first area. The thermistor detects a temperature in the first area. Such a configuration allows the thermistor to detect, in accordance with the temperature in the area, the temperature of heat transferred from the LED packages, without being affected by heat generated by the FET. This makes it possible to efficiently make temperature corrections to stabilize color temperature and luminance.
33 Citations
17 Claims
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1-8. -8. (canceled)
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9. An illumination device comprising:
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a substrate; a plurality of luminous bodies disposed on the substrate; a driving section arranged to drive the plurality of luminous bodies; and a temperature detecting section disposed in an area surrounded by the plurality of luminous bodies;
whereina plurality of polygonal areas determined by vertices corresponding to the luminous bodies are located on the substrate, the driving section and the temperature detecting section are disposed in different ones of the polygonal areas, and the temperature detecting section is arranged to detect a temperature of the substrate in the polygonal area in which the temperature detecting section is disposed. - View Dependent Claims (10, 11, 12, 13, 14, 16)
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15. An illumination device comprising:
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a substrate; a plurality of luminous bodies disposed on the substrate; a driving section arranged to drive the plurality of luminous bodies; and a temperature detecting section disposed in an area surrounded by the plurality of luminous bodies;
whereinthe driving section is disposed outside of a polygonal area determined by vertices corresponding to the plurality of luminous bodies surrounding the temperature detecting section. - View Dependent Claims (17)
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Specification