Radical: Tablet PC

Explanation:

Signs made of boards or other materials: doors ~. Road ~. ~ son. ~ plaque. ~ price.

Voucher: gold ~. Silver ~. Waist.

Product trademark: name ~ commodity.

Something that ancient soldiers used to protect their bodies in war or modern police used to disperse demonstrators: a shield. Block the arrow.

Something for entertainment or gambling: paper. Poker. Mahjong.

A god, spiritual position or wooden sign whose name is the object of sacrifice: ~.

Title of the tune: word ~. Qu ~ ~ Ziqu.