Flexible display apparatuses and methods of manufacturing flexible display apparatuses

1. A flexible display apparatus, comprising:

a main body including a control circuit portion;

a rotation structure in the main body, the rotation structure including a rotation body and a flexible display panel, the rotation body configured to rotate about an axis extending in a first direction, the flexible display panel being fixed to the rotation body, wherein the rotating body has a circular cylinder shape or an elliptical cylinder shape extending in the first direction;

a signal transfer portion transferring a signal between the control circuit portion and the flexible display panel; and

at least one first pad, at least one second pad, at least one third pad, at least one fourth pad and an adhesive,

wherein the at least one first pad and the at least one second pad are disposed on surfaces of the rotating body,

wherein the at least one third pad and the at least one fourth pad are disposed at an end portion of the flexible display panel, and

wherein the adhesive is disposed between the at least one first pad and the at least one third pad and between the at least one second pad and the at least one fourth pad.

2. The flexible display apparatus of claim 1 , wherein the signal transfer portion comprises:

an optical transmitter disposed on the substrate;

an optical receiver disposed in the rotation structure; and

an optical cable connecting the optical transmitter with the optical receiver.

3. The flexible display apparatus of claim 2 , wherein the optical transmitter includes a multiplexer, a first driving circuit and a light source, and wherein the optical receiver includes an optical sensor, a second driving circuit and a demultiplexer.

4. The flexible display apparatus of claim 1 , wherein the signal transfer portion comprises:

a wireless transmitter disposed on the substrate; and

a wireless receiver disposed in the rotating structure.

5. The flexible display apparatus of claim 4 , wherein the wireless transmitter includes a transmitter circuit and a first antenna, and wherein the wireless receiver includes a receiver circuit and a second antenna.

6. The flexible display apparatus of claim 1 , wherein the at least one first pad is disposed on a first surface of the rotating body exposed by the opening, wherein the at least one second pad is disposed on a second surface of the rotating body exposed by the opening, wherein the at least one third pad is disposed on an upper surface of the flexible display panel, wherein the at least one fourth pad is disposed on a lower surface of the flexible display panel, wherein the first surface and the second surface face each other, and wherein the upper surface opposes to the lower surface.

7. The flexible display apparatus of claim 1 , wherein the flexible display panel is disposed through the opening, and wherein the upper surface and the lower surface of the flexible display panel are fixed to the rotation body.

8. The flexible display apparatus of claim 1 , further comprising a substrate fixed to the main body or integrally formed on the main body, wherein the control circuit portion is disposed on the substrate.

9. The flexible display apparatus of claim 8 , wherein the signal transfer portion comprises:

a contact portion including a connector or a signal pad on the substrate; and

a cable portion including at least one of a data line, a power line, a ground line and an input signal line or an output signal line, the cable portion connecting the contact portion with the rotation structure.