Rollable display apparatus
A rollable display apparatus includes a flexible panel including a main panel with a display and a dummy panel with a wire connected to the display, a housing to accommodate the flexible panel, a rotatable rolling drum in the housing and coupled to a first end of the flexible panel, a supporting base moveable into and out of the housing and coupled to a second end of the flexible panel, and a printed circuit board connected to the second end of the flexible panel, the printed circuit board being on the supporting base.
1. A rollable display apparatus, comprising:
a flexible panel including a main panel with a display and a dummy panel with a wire connected to the display;
a housing to accommodate the flexible panel;
a rotatable rolling drum in the housing and coupled to a first end of the flexible panel;
a supporting base moveable into and out of the housing and coupled to a second end of the flexible panel; and
a printed circuit board connected to the second end of the flexible panel, the printed circuit board being on the supporting base.
2. The rollable display apparatus as claimed in claim 1 , wherein the printed circuit board includes:
a first printed circuit board at a second end of the main panel; and
a second printed circuit board at a second end of the dummy panel.
3. The rollable display apparatus as claimed in claim 2 , wherein pads arranged at first ends of the main panel and the dummy panel and the second ends of the main panel and the dummy panel, respectively, the pads being connected to the display and the wire, respectively.
4. The rollable display apparatus as claimed in claim 3 , wherein the first printed circuit board and the second printed circuit board are connected to the pads at the second end of the main panel and to the pads at the second end of the dummy panel, respectively.
5. The rollable display apparatus as claimed in claim 4 , further comprising first driving chips connected to the pads at the second end of the main panel and second driving chips connected to the pads at the second end of the dummy panel.
6. The rollable display apparatus as claimed in claim 5 , further comprising first flexible circuit boards interconnecting the first printed circuit board and the pads at the second end of the main panel, and second flexible circuit boards and second flexible circuit boards interconnecting the second printed circuit board and the pads at the second end of the dummy panel,
wherein the first driving chips are on the first flexible circuit boards, and the second driving chips are on the second flexible circuit boards.
7. The rollable display apparatus as claimed in claim 5 , wherein the first driving chips and the first printed circuit board are directly connected to the pads at the second end of the main panel, and the second driving chips and the second printed circuit board are directly connected to the pads at the second end of the dummy panel.
8. The rollable display apparatus as claimed in claim 3 , further comprising third printed circuit boards interconnecting the pads at the first end of the main panel and the pads at the first end of the dummy panel.
9. The rollable display apparatus as claimed in claim 3 , further comprising a conductive capping layer arranged over the pads of the main panel and the dummy panel.
10. The rollable display apparatus as claimed in claim 1 , wherein:
the main panel further comprises a first base substrate, on which the display is arranged, and a first protection film that covers the display, and
the dummy panel further comprises a second base substrate, on which the wire is arranged, and a second protection film that covers the wire.
11. The rollable display apparatus as claimed in claim 10 , wherein the dummy panel further comprises a black layer to suppress light transmission.
12. The rollable display apparatus as claimed in claim 11 , wherein the black layer includes a layer separately arranged on the second base substrate.
13. The rollable display apparatus as claimed in claim 11 , wherein the second base substrate is the black layer.
14. The rollable display apparatus as claimed in claim 1 , wherein the flexible panel further comprises heat dissipating wires.
15. The rollable display apparatus as claimed in claim 14 , wherein the heat dissipating wires are arranged at a center portion of the dummy panel.
16. The rollable display apparatus as claimed in claim 1 , wherein the main panel and the dummy panel are attached to each other via an adhesive film.
17. The rollable display apparatus as claimed in claim 1 , wherein the supporting base includes
a head, the printed circuit board being in the head.
18. The rollable display apparatus as claimed in claim 17 , wherein the head includes rigid material.
19. The rollable display apparatus as claimed in claim 17 , wherein the head is external to the housing.
20. The rollable display apparatus as claimed in claim 17 , wherein a rigid portion of the printed circuit board is entirely within the head.