Wearable smart device having flexible semiconductor package mounted on a band

1. A wearable smart device comprising:

a main body in which a basic module having a smart computer function is mounted; and

a band in which a battery is mounted so as to enable wireless charging through WPC wireless power transmission and so as to be bent or curved,

wherein the battery includes:

a plurality of wireless charging reception modules configured to receive an electromagnetic wave from a wireless charging transmission module; and

a capacitor module configured to store electric energy generated in the wireless charging reception modules,

wherein the plurality of wireless charging reception modules are spaced at intervals on the capacitor module so as to bend mainly at a part of the capacitor module on which the wireless charging reception modules are absent.

2. The wearable smart device of claim 1 , wherein:

the wireless charging reception modules are arranged on the same substrate as the capacitor module so as to be alternately arranged at the same level;

bending or curving mainly occurs in the capacitor module having a smaller thickness than the wireless charging reception modules; and

bending or curving mainly occurs at a boundary between the wireless charging reception modules and the capacitor module.

3. The wearable smart device of claim 1 , wherein the wireless charging reception modules include a chip on board (COB) package in which an antenna tag is stacked on a substrate in a COB manner and is covered by an insulating protective member.

4. The wearable smart device of claim 3 , wherein the capacitor module includes an electric double-layer capacitor capable of repeatedly charging and discharging.

5. The wearable smart device of claim 3 , wherein:

the substrate includes a flexible substrate made of a polymer material;

the antenna tag is a conductive film formed using flexible copper, titanium, or aluminum by a photolithography process or a printing process; and

the protective member includes an adhesive protective member made of a silicon material or a polymer material.

6. The wearable smart device of claim 4 , wherein the electric double-layer capacitor includes:

a flexible substrate;

a pair of electrodes provided on the flexible substrate and arranged above and below the flexible substrate with an insulating separator interposed therebetween; and

a pair of conductive metal covers configured to perform a current collecting function and cover upper and lower portions of the electrodes using a conductive binder.

7. The wearable smart device of claim 6 , wherein:

the flexible substrate is made of a flexible polyethylene terephthalate (PET);

the electrodes are flexible activated carbon electrodes into which an electrolytic solution is permeated;

the separator is made of a flexible polypropylene capable of permeating ions; and

the metal covers are flexible aluminum foils.

8. The wearable smart device of claim 1 , wherein:

the band is replaceable in the main body;

the band is formed of a pair of bands at left and right sides with respect to the main body and the pair of bands are selectively attached to and detached from a wrist of a user by buckles; and

when the band is connected to the main body at one side, power of the main body is maintained even when the band at the other side becomes separated from the main body.

9. The wearable smart device of claim 8 , further comprising:

a connector configured to electrically connect the main body to the band; and

a coupler configured to physically connect the main body to the band.

10. The wearable smart device of claim 1 , further comprising an independent band selectively fastened to the band,

wherein a plurality of batteries are mounted in the independent band.