Display apparatus

Patent metadata

Field	Value
Publication number	US-2017288008-A1
Application number	US-201615336232-A
Country	US
Kind code	A1
Filing date	Oct 27, 2016
Priority date	Mar 31, 2016
Publication date	Oct 5, 2017
Grant date	—

Abstract

A display apparatus includes a substrate. A display unit is disposed on the substrate and includes a display region and a non-display region. At least one light-emitting device is disposed in the display region. First and second power supply lines, configured to supply driving power to the at least one light-emitting device, and a pad unit, are disposed in the non-display region. The first power supply line includes a first fan-out wire portion electrically connected to the pad unit, and a first extension portion electrically connected to the first fan-out wire portion. The second power supply line includes a second fan-out wire portion electrically connected to the pad unit, and a second extension portion electrically connected to the second fan-out wire portion. The first extension portion has a width W 1 and the second extension portion has a width W 2 . The width W 1 is greater than the width W 2.

First claim

What is claimed is:

1 . A display apparatus, comprising:
a substrate; and a display unit disposed on the substrate, the display unit comprising a display region and a non-display region disposed around the display region, wherein the display unit comprises:
at least one light-emitting device disposed in the display region;
a first power supply line and a second power supply line configured to supply driving power to the at least one light-emitting device; and
a pad unit disposed at a side of the display region,
wherein the first power supply line comprises a first fan-out wire portion electrically connected to the pad unit, and a first extension portion electrically connected to the first fan-out wire portion in the non-display region, the second power supply line comprises a second fan-out wire portion electrically connected to the pad unit, and a second extension portion electrically connected to the second fan-out wire portion in the non-display region, and wherein the first extension portion has a width W 1 and the second extension portion has a width W 2 , and wherein the width W 1 is greater than the width W 2 .

2 . The display apparatus of claim 1 , wherein the first power supply line further comprises a first body portion, wherein the first body portion extends in a first direction and the first body portion is disposed on a same side of the display region as the pad unit.

3 . The display apparatus of claim 2 , wherein the first extension portion extends from the first body portion in a second direction that crosses the first direction.

4 . The display apparatus of claim 3 , wherein the first extension portion includes at least two of first extension portions, wherein the at least two first extension portions extend in the second direction.

5 . The display apparatus of claim 3 , wherein the second power supply line further comprises a second body portion, wherein the second body portion surrounds both ends of the first body portion, and the second body portion surrounds all sides of the display region except for the side of the display region on which the pad unit is disposed.

6 . The display apparatus of claim 5 , wherein the second extension portion includes a pair of second extension portions, wherein the first extension portion is disposed between the pair of second extension portions, wherein each of the pair of first extension portions extends from the second body portion in a direction parallel to the first extension portion.

7 . The display apparatus of claim 6 , further comprising at least two third power supply lines disposed on different sides of the display region,
wherein each of the at least two third power supply lines is connected to the pad unit.

8 . The display apparatus of claim 7 , wherein each of the at least two third power supply lines includes a third fan-out portion connected to the pad unit, wherein the pair of second extension portions is disposed closer to the first extension portion than the third fan-out portions.

9 . The display apparatus of claim 7 , wherein each of the at least two third power supply lines includes a third fan-out portion connected to the pad unit, wherein the pair of second extension portions is disposed farther from the first extension portion than the third fan-out portions.

10 . The display apparatus of claim 1 , wherein the width W 1 is about 100 μm to about 5 mm.

11 . The display apparatus of claim 1 , wherein the width W 2 is about 100 μm to about 5 mm.

12 . The display apparatus of claim 1 , wherein the first power supply line further comprises a first body portion, and the second power supply line further comprises a second body portion,
wherein a length L 1 is a sum of a length of the first body portion in a second direction, a length of the first extension portion in the second direction, and a length of the first fan-out wire portion in the second direction, and a length L 2 is a sum of a length of the second body portion in the second direction, a length of the second extension portion in the second direction, and a length of the second fan-out wire portion in the second direction.

13 . The display apparatus of claim 12 , wherein a ratio of the length L 1 with respect to the width W 1 of the first extension portion is less than 10.

14 . The display apparatus of claim 12 , wherein a ratio of the length L 2 with respect to the width W 2 of the second extension portion is less than 20.

15 . The method of claim 12 , wherein, when the length L 1 is equal to the length L 2 , the width W 1 of the first extension portion is more than twice the width W 2 of the second extension portion.

16 . The display apparatus of claim 1 , wherein the display portion further comprises a bending region that is disposed in the non-display region, and wherein the bending region is bent or folded.

17 . The display apparatus of claim 16 , wherein, in the bending region, the width W 1 of the first extension portion is greater than the width W 2 of the second extension portion.

18 . The display apparatus of claim 16 , wherein
the display portion further comprises data fan-out wires that apply data voltages to the display region, and in the bending region, the data fan-out wires are disposed on a same layer as the first power supply line and the second power supply line.

19 . The display apparatus of claim 2 , wherein the width W 1 is a width of the first extension portion in the first direction, and the width W 2 is a width of the second extension portion in the first direction.

20 . The display apparatus of claim 6 , wherein
the width W 1 is a width of the first extension portion along the first direction, and the width W 2 is a width of one of the pair of second extension portions along the first direction.

21 . The display apparatus of claim 1 , wherein a first voltage, applied to the first power supply line, is greater than a second voltage, applied to the second power supply line.

22 . The display apparatus of claim 21 , further comprising at least one thin film transistor disposed on the substrate,
wherein the at least one light-emitting device is an organic light-emitting device that comprises a first electrode electrically connected to the at least one thin film transistor, a second electrode opposite to the first electrode, and an intermediate layer disposed between the first electrode and the second electrode.

23 . The display apparatus of claim 21 , wherein the first voltage is applied to the first electrode and the second voltage is applied to the second electrode.

24 . The display apparatus of claim 1 , further comprising an encapsulation unit disposed on the substrate, wherein the encapsulation unit protects the display unit from external moisture and oxygen.

25 . The display apparatus of claim 24 , wherein the encapsulation unit comprises at least one of tin fluorophosphates glass, chalcogenide glass, tellurite glass, borate glass, and phosphate glass.

26 . The display apparatus of claim 24 , wherein
the encapsulation unit comprises at least one inorganic layer and at least one organic layer, and the at least one inorganic layer and the at least one organic layer comprise silicon oxide, the silicon oxide comprising carbon and hydrogen.

27 . The display apparatus of claim 26 , wherein
the encapsulation unit comprises an organic

Assignees

• Samsung Display Co Ltd

Inventors

• Kim Yangwan
• Kwon Sunja
• Kim Byungsun
• Park Hyunae
• Lee Sujin
• Lee Jaeyong

Classifications

• G09G2300/0809

  Several active elements per pixel in active matrix panels · CPC title

• H01L27/3206

  Electricity · mapped topic

• H01L51/0097

  Electricity · mapped topic

• G09G3/3291

  in which the data driver supplies a variable data voltage for setting the current through, or the voltage across, the light-emitting elements · CPC title

• G09G3/3266

  Details of drivers for scan electrodes · CPC title