An LCD panel includes a plurality of gate lines and gate electrodes formed on a substrate and a gate insulating film formed on the substrate including the gate lines and the gate electrodes. 2 time the average particle size, as determined by the SEM observation; and not less than 10% of particles whose particle size is not more than 0. By extending the antenna in this manner, RF signals can be received and transmitted by the control board of the LED fixture with significantly reduced attenuation. Transmitting control information in this manner enables a plurality of UEs to efficiently receive PDCCHs without collisions.