| 摘要 |
Providing a cup having a hollow part in the lower potion of it, in which rotary display part rotating in a certain direction (or both direction) is disposed, and the rotation of the display part becomes to be rotated when it is light, the rotation is stopped when it is no light, and it is stopped when it is no light, or the rotation of the display part is stopped when it is light by lift of the cup as a cup is about the ground, and when it is rotated the rotation of the display part from lifting of the cup, the luminary becomes to be emitted light for certain time. Therefore, the present invention is available to realize a dynamic expression outward so that the use of the cup can be prompted by inducing user's interest. And the present invention can attempt to maximize the effect of advertisement by showing content (for example, the content of advertisement) expressed on the rotary display part to the user more clearly. In addition, the present invention can minimize the power consumption of the battery by stopping the rotation of the rotary display part at night or in the room without lighting. Furthermore the present invention can deliver a particular sense to user by the use of light source which emits light during a limited span after the lift of the cup.
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