CN-122029972-A - Display device

Abstract

A display device including pixels arranged in a display region includes a first conductive layer including a first voltage line, a second conductive layer disposed on the first conductive layer and including a first conductive pattern overlapping the first voltage line, a semiconductor layer disposed on the second conductive layer and including a first semiconductor pattern overlapping the first conductive pattern, a third conductive layer disposed on the semiconductor layer and including a second conductive pattern overlapping the first conductive pattern, and a fourth conductive layer disposed on the third conductive layer and including a data line and a third conductive pattern overlapping the second conductive pattern, wherein the first voltage line includes a body portion extending in a first direction and a shielding portion extending from the body portion to overlap the data line in a second direction crossing the first direction.

Inventors

• Bian Minyu
• Pu Xianai
• ZHAO ZAIYUAN
• Jin Minzhou
• Tian Donghuan
• ZHENG XIANYI
• Huang Xingzan

Assignees

• 三星显示有限公司

Dates

Publication Date

20260512

Application Date

20241011

Priority Date

20231012

Claims (20)

1. 1. A display device including pixels arranged in a display area, the display device comprising: A first conductive layer including a first voltage line; A second conductive layer disposed on the first conductive layer and including a first conductive pattern overlapping the first voltage line; a semiconductor layer disposed on the second conductive layer and including a first semiconductor pattern overlapping the first conductive pattern; A third conductive layer disposed on the semiconductor layer and including a second conductive pattern overlapping the first conductive pattern, and A fourth conductive layer disposed on the third conductive layer and including a data line and a third conductive pattern overlapping the second conductive pattern, Wherein the first voltage line includes a main body portion extending in a first direction and a shielding portion extending from the main body portion in a second direction to overlap the data line, wherein the second direction crosses the first direction.
2. 2. The display device according to claim 1, wherein the third conductive layer further comprises a first connection electrode, and wherein the fourth conductive layer further comprises a second connection electrode, Wherein the shielding portion is electrically connected to the first semiconductor pattern via the first connection electrode and the second connection electrode.
3. 3. The display device according to claim 1, wherein the shielding portion is spaced apart from the first semiconductor pattern in a plan view.
4. 4. The display device of claim 1, wherein the first conductive layer further comprises a fourth conductive pattern overlapping the second conductive pattern, Wherein the second conductive pattern is electrically connected to the fourth conductive pattern, and wherein the first conductive pattern is electrically connected to the third conductive pattern.
5. 5. The display device according to claim 1, wherein the data line includes a first data line, a second data line, and a third data line, and wherein the shielding portion includes a first shielding portion overlapping the first data line, a second shielding portion overlapping the second data line, and a third shielding portion overlapping the third data line, Wherein the first shielding portion, the second shielding portion, and the third shielding portion have the same area.
6. 6. The display device according to claim 1, wherein the data line includes a first data line, a second data line, and a third data line, and wherein the shielding portion includes a first shielding portion overlapping the first data line, a second shielding portion overlapping the second data line, and a third shielding portion overlapping the third data line, Wherein the area of the first shielding portion is different from the area of the second shielding portion and the area of the third shielding portion.
7. 7. The display device according to claim 6, wherein the pixels include a red pixel emitting red light, a blue pixel emitting blue light, and a green pixel emitting green light, Wherein the first data line is electrically connected to the red pixel.
8. 8. The display device according to claim 1, wherein the first conductive layer further comprises a second voltage line extending in the first direction, and wherein the semiconductor layer further comprises a second semiconductor pattern electrically connected between the data line and the second voltage line.
9. 9. The display device according to claim 8, wherein the third conductive layer further comprises a first gate line overlapping the first semiconductor pattern and configured to transmit a first gate signal and a second gate line overlapping the second semiconductor pattern and configured to transmit a second gate signal, and wherein the pixel operates in a non-emission period and an emission period during one frame period, Wherein in the non-emission period, the first gate signal becomes an on voltage after the second gate signal becomes an on voltage, and the first gate signal becomes an off voltage after the second gate signal becomes an off voltage.
10. 10. The display device according to claim 9, wherein a reference voltage is transferred to the second conductive pattern through the second voltage line during an on-voltage period of the second gate signal.
11. 11. The display device according to claim 1, further comprising: And a fifth conductive layer disposed on the fourth conductive layer and including a third voltage line extending in the second direction and overlapping the data line.
12. 12. The display device according to claim 11, further comprising: A voltage supply line disposed in a peripheral region outside the display region and extending in the first direction, Wherein the third voltage line passes through the display region and is connected to the voltage supply line in the peripheral region.
13. 13. The display device according to claim 12, wherein the pixel includes a display element including a pixel electrode, a counter electrode, and an intermediate layer provided between the pixel electrode and the counter electrode, Wherein the voltage supplied to the third voltage line is equal to the voltage supplied to the counter electrode.
14. 14. The display device according to claim 12, wherein the pixel includes a display element including a pixel electrode, a counter electrode, and an intermediate layer provided between the pixel electrode and the counter electrode, Wherein the voltage supplied to the third voltage line is different from the voltage supplied to the counter electrode.
15. 15. The display device according to claim 1, further comprising: a fifth conductive layer disposed on the fourth conductive layer and including a fourth voltage line extending in the second direction, and And a sixth conductive layer disposed on the fifth conductive layer and including a pixel electrode, an auxiliary electrode, and a fifth voltage line extending in the first direction and connecting adjacent auxiliary electrodes among the auxiliary electrodes.
16. 16. The display device according to claim 15, further comprising a pixel defining layer disposed on the sixth conductive layer and defining a pixel opening and an auxiliary opening, Wherein each of the pixel openings overlaps a corresponding one of the pixel electrodes, and each of the auxiliary openings overlaps a corresponding one of the auxiliary electrodes overlapping the fourth voltage line.
17. 17. A display device, comprising: a first pixel circuit electrically connected to the first light emitting diode and a second pixel circuit electrically connected to the second light emitting diode, Wherein each of the first pixel circuit and the second pixel circuit includes: A first voltage line extending in a first direction; A data line disposed on the first voltage line and extending in a second direction crossing the first direction; A capacitor including a first capacitor electrode and a second capacitor electrode disposed on the first capacitor electrode; a first transistor electrically connected between the first voltage line and the capacitor; a second transistor electrically connected to the data line and a gate electrode of the first transistor; A third transistor electrically connected to the gate electrode of the first transistor and a second voltage line extending in the first direction, and A fourth transistor electrically connected between the first voltage line and the first transistor, Wherein the first voltage line includes a main body portion and a shielding portion extending from the main body portion in the second direction to overlap the data line.
18. 18. The display device according to claim 17, wherein an area of the shielding portion of the first pixel circuit is smaller than an area of the shielding portion of the second pixel circuit.
19. 19. The display device of claim 18, wherein the first light emitting diode emits red light.
20. 20. The display device according to claim 17, wherein the first voltage line and the second voltage line are provided in the same layer.

Description

Display device Technical Field The present invention relates to a display device, and more particularly, to a display device having improved display quality. Background Currently, the use of display devices has been diversified. In addition, the display device becomes thinner and lighter, and thus, its use has been expanded. As display devices are being used for various purposes, there are various methods of designing the shape of the display devices, and functions that can be connected to or associated with the display devices have been increased. Disclosure of Invention Technical problem One or more embodiments include a display device having improved display quality. However, these problems are illustrative, and the scope of the embodiments described hereinafter is not limited thereto. Solution to the problem According to one or more embodiments, a display device including a pixel disposed in a display region includes a first conductive layer including a first voltage line, a second conductive layer disposed on the first conductive layer and including a first conductive pattern overlapping the first voltage line, a semiconductor layer disposed on the second conductive layer and including a first semiconductor pattern overlapping the first conductive pattern, a third conductive layer disposed on the semiconductor layer and including a second conductive pattern overlapping the first conductive pattern, and a fourth conductive layer disposed on the third conductive layer and including a data line and a third conductive pattern overlapping the second conductive pattern, wherein the first voltage line includes a body portion extending in a first direction and a shielding portion extending from the body portion in a second direction to overlap the data line, the second direction crossing the first direction. In an embodiment, the third conductive layer may further include a first connection electrode, and the fourth conductive layer may further include a second connection electrode, wherein the shielding portion may be electrically connected to the first semiconductor pattern via the first connection electrode and the second connection electrode. In an embodiment, the shielding portion may be spaced apart from the first semiconductor pattern in a plan view. In an embodiment, the first conductive layer may further include a fourth conductive pattern overlapping the second conductive pattern, wherein the second conductive pattern may be electrically connected to the fourth conductive pattern, and the first conductive pattern may be electrically connected to the third conductive pattern. In an embodiment, the data line may include a first data line, a second data line, and a third data line, and the shielding part may include a first shielding part overlapping the first data line, a second shielding part overlapping the second data line, and a third shielding part overlapping the third data line, wherein the first shielding part, the second shielding part, and the third shielding part may have the same area. In an embodiment, the data line may include a first data line, a second data line, and a third data line, and the shielding part may include a first shielding part overlapping the first data line, a second shielding part overlapping the second data line, and a third shielding part overlapping the third data line, wherein an area of the first shielding part may be different from an area of the second shielding part and an area of the third shielding part. In an embodiment, the pixels may include a red pixel emitting red light, a blue pixel emitting blue light, and a green pixel emitting green light, wherein the first data line may be electrically connected to the red pixel. In an embodiment, the first conductive layer may further include a second voltage line extending in the first direction, and the semiconductor layer may further include a second semiconductor pattern electrically connected between the data line and the second voltage line. In an embodiment, the third conductive layer may further include a first gate line overlapping the first semiconductor pattern and configured to transmit the first gate signal and a second gate line overlapping the second semiconductor pattern and configured to transmit the second gate signal, and the pixel may operate in a non-emission period and an emission period during one frame period, wherein in the non-emission period, the first gate signal may become an on voltage after the second gate signal becomes an on voltage, and the first gate signal may become an off voltage after the second gate signal becomes an off voltage. In an embodiment, the reference voltage may be transferred to the second conductive pattern through the second voltage line during the on-voltage period of the second gate signal. In an embodiment, the display device may further include a fifth conductive layer disposed on the fourth conductive layer and including a third voltage line extending in th