DISPLAY APPARATUS
The present invention discloses a display apparatus including a display panel that includes a first flexible substrate including a plurality of pixels and a second flexible substrate coupled with the first flexible substrate, the display panel to display an image, and at least one driver integrated circuit (IC) arranged on a display panel, the driver IC to apply a driving signal to the pixels. The driver IC has a length less than a curvature radius of the first flexible substrate, the curvature radius based on the first flexible substrate to which a pressure of 1 Gpa is applied.
1 . A display apparatus, comprising:
a display panel comprising a first flexible substrate comprising a plurality of pixels and a second flexible substrate coupled with the first flexible substrate, the display panel to display an image; and
at least one driver integrated circuit (IC) arranged on the display panel, the driver IC to apply a driving signal to the pixels,
wherein the driver IC has a length less than a curvature radius of the first flexible substrate, the curvature radius based on the first flexible substrate to which a pressure of 1 Gpa is applied.
2 . The display apparatus of claim 1 , wherein the first flexible substrate and the second flexible substrate each comprise a plastic material and the driver IC comprises a silicon wafer.
3 . The display apparatus of claim 2 , wherein the plastic material comprises polyethylene terephthalate (PET), poly carbonate (PC), polyethylene naphthalate (PEN), polyether sulfone (PES), and fiber reinforced plastic (FRP).
4 . The display apparatus of claim 1 , wherein the curvature radius of the first flexible substrate satisfies an equation of
r
=
t
2
Ms
6
f
,
where r denotes the curvature radius, t denotes a thickness of the first flexible substrate, Ms denotes a modulus of elasticity of the first flexible substrate, and f denotes a pressure applied to the first flexible substrate.
5 . The display apparatus of claim 4 , wherein the length of the driver IC is 6 mm or less.
6 . The display apparatus of claim 5 , wherein the length of the driver IC is 2 mm or less.
7 . The display apparatus of claim 5 , wherein the display panel comprises:
a vertical side that extends along a first direction; and
a horizontal side that extends along a second direction, the horizontal side shorter than the vertical side,
wherein the length of the driver IC is measured along the second direction.
8 . The display apparatus of claim 4 , wherein the thickness of the first flexible substrate has a range of about 20 μm to about 200 μm.
9 . The display apparatus of claim 1 , wherein the driver IC is spaced apart from an adjacent driver IC.