IP Library Granted Patent US 12672237
Granted Patent B2
US 12672237 · App. 18/505,402 · Granted Jun 30, 2026

Display apparatus

Inventor: Minwoo Kim (Paju-si, KR)
Assignee: LG Display Co., Ltd.
H05K1/147H05K1/142H05K2201/10128
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 12672237
App. No.
18/505,402
Granted
Jun 30, 2026
Kind
B2
Abstract

A display apparatus includes a display panel including a frontside, a backside, a first side extended along a first direction and a second side extended along a second direction intersecting the first direction, a chip-on-film attached to the frontside of the display panel at the first side, and a source printed circuit board connected to the chip-on-film, wherein the first side is curved in a thickness direction of the display panel, the source printed circuit board includes a third side extended along the second direction and a fourth side extended along the first direction, the fourth side having a length that is shorter than a length of the third side.

Claims (51)

1 . A display apparatus, comprising:

a display panel comprising a frontside, a backside, a first side extended along a first direction, and a second side extended along a second direction intersecting the first direction;

a chip-on-film attached to the frontside of the display panel at the first side and bent from the frontside toward the backside of the display panel; and

a source printed circuit board connected to the chip-on-film and overlapping with the backside of the display panel,

wherein the first side is curved in a thickness direction of the display panel,

wherein the source printed circuit board comprises a third side extended along the second direction and a fourth side extended along the first direction, the fourth side having a length that is shorter than a length of the third side, and

wherein an entire portion of the display panel overlapping the chip-on-film and the source printed circuit board in a plan view of the display apparatus is bent.

2 . The display apparatus of claim 1 , wherein the display panel is curved in a direction from the backside to the frontside.

3 . The display apparatus of claim 1 , wherein the source printed circuit board is on the backside of the display panel.

4 . The display apparatus of claim 3 , wherein the source printed circuit board comprises a first portion, a second portion, and a third portion, the first portion between the second portion and the third portion, and the first portion contacts the backside of the display panel.

5 . The display apparatus of claim 4 , wherein a thickness of the first portion is less than a thickness of the second portion and a thickness of the third portion.

6 . The display apparatus of claim 5 , wherein at least one of the second portion and the third portion contacts the backside of the display panel.

7 . The display apparatus of claim 1 , further comprising:

a control printed circuit board connected to the source printed circuit board, the control printed circuit board comprising a fifth side extending along the first direction and a sixth side extending along the second direction, the fifth side having a length that is shorter than a length of the sixth side.

8 . The display apparatus of claim 7 , further comprising:

a cable connecting the source printed circuit board and the control printed circuit board, the cable extending in the first direction and comprises a connector at each of both ends of the cable.

9 . The display apparatus of claim 8 , wherein the cable comprises a plurality of cables in the second direction.

10 . The display apparatus of claim 1 , wherein the chip-on-film comprises a plurality of chip-on-films in the first direction, and the source printed circuit board comprises a plurality of source printed circuit boards in the first direction.

11 . A display apparatus, comprising:

a display panel comprising a frontside, a backside, a first side extended along a first direction, and a second side extended along a second direction intersecting the first direction;

a chip-on-film attached to the frontside of the display panel at the first side and bent from the frontside toward the backside of the display panel; and

a source printed circuit board connected to the chip-on-film and overlapping with the backside of the display panel,

wherein the first side is curved in a thickness direction of the display panel,

wherein the source printed circuit board comprises a third side extended along the second direction and a fourth side extended along the first direction, the fourth side having a length that is shorter than a length of the third side,

wherein the chip-on-film overlaps with the curved first side of the display panel in a plan view of the display apparatus, and

wherein a portion of the source printed circuit board is spaced apart from the backside of the display panel.

12 . A display apparatus, comprising:

a display panel comprising a frontside, a backside, a first side extended along a first direction, and a second side extended along a second direction intersecting the first direction;

a first chip-on-film attached to the frontside of the display panel at the first side and bent from the frontside toward the backside of the display panel;

a second chip-on-film attached to the frontside of the display panel at the first side and spaced apart from the first chip-on-film in the first direction;

a first source printed circuit board connected to the first chip-on-film and overlapping with the backside of the display panel; and

a second source printed circuit board connected to the second chip-on-film,

wherein the first side is curved in a thickness direction of the display panel,

wherein the first source printed circuit board comprises a third side extended along the second direction and a fourth side extended along the first direction, the fourth side having a length that is shorter than a length of the third side, and

wherein an entire portion of the display panel individually overlapping each of the first chip-on-film, the second chip-on-film, the first source printed circuit board and the second source printed circuit board in a plan view of the display apparatus is bent.

13 . The display apparatus of claim 12 , wherein the second source printed circuit board comprises a fifth side extended along the second direction and a sixth side extended along the first direction, the sixth side having a length that is shorter than a length of the fifth side.

14 . The display apparatus of claim 13 , wherein the display panel comprises a first curvature region having a first curvature radius and a second curvature region having a second curvature radius, the first curvature radius greater than the second curvature radius,

the first chip-on-film is attached to the first curvature region, and the second chip-on-film is attached to the second curvature region,

the length of the fourth side of the first source printed circuit board is greater than the length of the sixth side of the second source printed circuit board.

15 . The display apparatus of claim 13 , wherein the second source printed circuit board comprises a first portion, a second portion, and a third portion, the first portion positioned between the second portion and the third portion, and

wherein a thickness of the first portion is less than a thickness of each of the second portion and the third portion.

16 . The display apparatus of claim 12 , further comprising:

a control printed circuit board positioned between the first source printed circuit board and the second source printed circuit board,

wherein the control printed circuit board comprises a seventh side extended along the first direction and a eighth side extended along the second direction, the seventh side having a length that is shorter than a length of the eighth side.

17 . The display apparatus of claim 16 , wherein the first source printed circuit board, the second source printed circuit board, and the control printed circuit board are on the backside of the display panel.

18 . The display apparatus of claim 16 , further comprising:

a first cable connecting the first source printed circuit board and the control printed circuit board, and a second cable connecting the second source printed circuit board and the control printed circuit board,

wherein the first cable and the second cable each extends along the first direction.

19 . The display apparatus of claim 18 , wherein at least one of the first cable and the second cable comprises a plurality of cables in the second direction.

20 . The display apparatus of claim 12 , wherein the first source printed circuit board comprises a first portion, a second portion, and a third portion, the first portion positioned between the second portion and the third portion, and

wherein a thickness of the first portion is less than a thickness of the second portion and a thickness of the third portion.