US Patent No. 9,433,064

LIGHT SOURCE APPARATUS, IMAGE DISPLAY APPARATUS, AND CONTROL METHOD FOR LIGHT SOURCE APPARATUS


Patent No. 9,433,064
Issue Date August 30, 2016
Title Light Source Apparatus, Image Display Apparatus, And Control Method For Light Source Apparatus
Inventorship Junichi Miyamoto, Tokyo (JP)
Naoki Masuda, Tokyo (JP)
Shuichi Nakanishi, Tokyo (JP)
Assignee NEC Display Solutions, Ltd., Tokyo (JP)

Claim of US Patent No. 9,433,064

1. A light source apparatus, comprising:
a circuit board;
a light source mounted on said circuit board;
a first temperature measurement element that measures an ambient temperature of said circuit board and outputs a first signal
that represents the measured result;

a second temperature measurement element that measures a temperature of said circuit board and outputs a second signal that
represents the measured result; and

a light source drive control section that controls driving of said light source,
wherein said light source drive control section does not drive said light source if the temperature represented by said second
signal is lower than the temperature represented by said first signal.