IP Library Granted Patent US 11,716,883
Granted Patent B2
US 11,716,883 · App. 17/307,859 · Granted Aug 1, 2023

Light emitting diode display device

Inventors: Jun Hyun Park (Suwon-si, KR); Jang Mi Kang (Seoul, KR); Hyun Joon Kim (Hwaseong-si, KR); Hae Min Kim (Gumi-si, KR); Min Jae Jeong (Hwaseong-si, KR)
Assignee: Samsung Display Co., Ltd.
H10K59/131G09G3/3233H10K50/813H10K59/122H10K59/352G09G2300/0452G09G2300/0809
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Quick Facts
Patent No.
US 11,716,883
App. No.
17/307,859
Granted
Aug 1, 2023
Kind
B2
Abstract

A light emitting diode display device includes: a pixel circuit; a data line connected to the pixel circuit to transmit a data voltage; an anode on the pixel circuit and the data line; an emission layer on the anode; and a cathode on the emission layer. The anode includes a first anode and a second anode, and the data line extends across the first anode and the second anode.

Claims (59)

1. A light emitting diode display device comprising:

a pixel circuit;

a data line connected to the pixel circuit to transmit a data voltage;

an anode on the pixel circuit and the data line;

an emission layer on the anode; and

a cathode on the emission layer,

wherein the anode comprises a first anode and a second anode, and the data line extends across the first anode and the second anode.

2. The light emitting diode display device of claim 1 , wherein the data line does not overlap with the first anode and the second anode in a plan view.

3. The light emitting diode display device of claim 2 , wherein the first anode and the second anode have different areas from each other.

4. The light emitting diode display device of claim 2 , wherein:

the first anode and the second anode are electrically connected to each other by an anode connection; and

the anode connection overlaps with the data line in a plan view.

5. The light emitting diode display device of claim 1 , further comprising a red pixel, a green pixel, and a blue pixel,

wherein the pixel circuit comprises a plurality of pixel circuits, each of the red pixel, the green pixel, and the blue pixel comprising a corresponding pixel circuit from among the plurality of pixel circuits,

wherein the anode comprises a red pixel anode connected to the pixel circuit of the red pixel, a green pixel anode connected to the pixel circuit of the green pixel, and a blue pixel anode connected to the pixel circuit of the blue pixel, and

wherein one anode from among the red pixel anode, the green pixel anode, and the blue pixel anode does not overlap with the data line, and has the largest area from among those of the red pixel anode, the green pixel anode, and the blue pixel anode.

6. The light emitting diode display device of claim 5 , wherein:

the one anode that does not overlap with the data line is the blue pixel anode; and

the data line that does not overlap with the blue pixel anode is connected to the pixel circuit of the blue pixel.

7. The light emitting diode display device of claim 5 , further comprising a partition wall having an opening exposing the one anode,

wherein a part of the one anode is not exposed by the opening of the partition wall.

8. The light emitting diode display device of claim 7 , wherein the part of the one anode extends in a direction crossing an extending direction of the data line.

9. A light emitting diode display device comprising:

a pixel circuit;

a data line connected to the pixel circuit, and configured to transmit a data voltage;

a common voltage line connected to the pixel circuit, and extending in the same direction as that of the data line;

an anode on the data line and the common voltage line;

an emission layer on the anode; and

a cathode on the emission layer,

wherein the anode does not overlap with the common voltage line,

wherein the anode comprises a first anode and a second anode, and

wherein the data line extends between the first anode and the second anode in a plan view.

10. The light emitting diode display device of claim 9 , wherein the common voltage line is configured to apply a voltage to the pixel circuit, and includes one from among a bias voltage line, a reference voltage line, a driving voltage line, a driving low voltage line, and an initialization voltage line.

11. The light emitting diode display device of claim 10 , wherein the pixel circuit comprises:

a driving transistor configured to transmit an output current to the anode;

an input capacitor; and

a second transistor connected to the data line, and configured to transmit the data voltage to the input capacitor,

wherein:

the reference voltage line is configured to transmit a reference voltage to a node to which the input capacitor and the second transistor are connected to each other;

the driving voltage line is configured to transmit a driving voltage to the driving transistor;

the bias voltage line is configured to transmit a bias voltage to the driving transistor;

the driving low voltage line is configured to transmit a driving low voltage to the cathode; and

the initialization voltage line is configured to transmit an initialization voltage to the anode.

12. The light emitting diode display device of claim 11 , wherein the common voltage line is the initialization voltage line.

13. The light emitting diode display device of claim 11 , wherein the common voltage line is the driving low voltage line.

14. The light emitting diode display device of claim 9 , wherein the first anode and the second anode have different areas from each other.

15. The light emitting diode display device of claim 9 , wherein:

the first anode and the second anode are electrically connected to each other by an anode connection; and

the anode connection overlaps with the data line in a plan view.

16. The light emitting diode display device of claim 9 , further comprising a red pixel, a green pixel, and a blue pixel,

wherein the pixel circuit comprises a plurality of pixel circuits, each of the red pixel, the green pixel, and the blue pixel comprising a corresponding pixel circuit from among the plurality of pixel circuits,

wherein the anode comprises a red pixel anode connected to the pixel circuit of the red pixel, a green pixel anode connected to the pixel circuit of the green pixel, and a blue pixel anode connected to the pixel circuit of the blue pixel, and

wherein one anode from among the red pixel anode, the green pixel anode, and the blue pixel anode does not overlap with the data line, and has the largest area from among those of the red pixel anode, the green pixel anode, and the blue pixel anode.

17. The light emitting diode display device of claim 16 , wherein:

the one anode that does not overlap with the data line is the blue pixel anode; and

the data line that does not overlap with the blue pixel anode is connected to the pixel circuit of the blue pixel.

18. The light emitting diode display device of claim 16 , further comprising a partition wall including an opening exposing the one anode,

wherein a part of the one anode is not exposed by the opening of the partition wall.

19. The light emitting diode display device of claim 18 , wherein the part of the one anode extends in a direction crossing an extending direction of the data line.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 4, 2021
From: PARK, JUN HYUN; KANG, JANG MI; KIM, HYUN JOON; KIM, HAE MIN; JEONG, MIN JAE
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 056133/0604 →
Priority Claims (1)
KR 10-2020-0124979 · Sep 25, 2020 · national
Continuity (1)
Related Publication 20220102463A1 · Mar 31, 2022
Cited By (1)
US 12,701,862