CN-122029973-A - Display device and electronic device including the same

Abstract

The display device may include a substrate including a display region and a peripheral region, a power line disposed in the peripheral region and supplied with a low power voltage, a plurality of first electrodes disposed in the display region and supplied with a high power voltage, a pixel defining layer disposed on the first electrodes and exposing a portion of each of the first electrodes to define an emission region, an auxiliary connection electrode disposed on the pixel defining layer and connected to the power line, an electrode layer disposed on the first electrodes and the auxiliary connection electrode, connected to the auxiliary connection electrode, and supplied with the low power voltage, and a separator disposed on the auxiliary connection electrode, overlapping a portion of the auxiliary connection electrode, and separating the electrode layer into a plurality of second electrodes spaced apart from each other in the display region.

Inventors

• Pu Zhucan
• GAO YUMIN
• JIN SHANHAO
• Jin Huiwan
• SUN YILIN
• LI BIXI
• Cui Zhongshuo
• Hong Xingzhen

Assignees

• 三星显示有限公司

Dates

Publication Date

20260512

Application Date

20250730

Priority Date

20240812

Claims (20)

1. 1. A display device, comprising: A substrate including a display region and a peripheral region disposed around the display region; A power supply line disposed in the peripheral region and supplying a low power voltage; A plurality of first electrodes disposed in the display area and supplied with a high power voltage; a pixel defining layer disposed on the plurality of first electrodes and exposing a portion of each of the plurality of first electrodes to define an emission region; an auxiliary connection electrode disposed on the pixel defining layer and electrically connected to the power line; an electrode layer provided on the plurality of first electrodes and the auxiliary connection electrode, electrically connected to the auxiliary connection electrode, and supplied with the low power voltage, and And a separator disposed on the auxiliary connection electrode, overlapping a portion of the auxiliary connection electrode, and separating the electrode layer into a plurality of second electrodes spaced apart from each other in the display region.
2. 2. The display device according to claim 1, further comprising: an auxiliary electrode disposed in the display area and electrically connected to the power line, and An auxiliary connection pattern disposed between the auxiliary electrode and the auxiliary connection electrode, the auxiliary connection pattern including an auxiliary electrode connection portion connected to the auxiliary electrode and a light emitting connection portion connected to the auxiliary connection electrode.
3. 3. The display device according to claim 2, wherein the light-emitting connection portion is disposed between the emission region and the spacer in a plan view.
4. 4. The display device according to claim 2, wherein the light-emitting connection portion overlaps the spacer in a plan view.
5. 5. The display device according to claim 1, wherein, The pixel defining layer defines a first, a second and a third emitting region emitting light of different colors, and The plurality of second electrodes spaced apart from each other by the separator overlap the first emission region, the second emission region, and the third emission region, respectively.
6. 6. The display device according to claim 5, wherein the separator has a mesh structure surrounding each of the plurality of second electrodes in a plan view.
7. 7. The display device according to claim 5, wherein the auxiliary connection electrode has a mesh structure surrounding each of the first emission region, the second emission region, and the third emission region in a plan view.
8. 8. The display device according to claim 7, wherein a contour of the auxiliary connection electrode corresponds to a contour of the spacer in a plan view.
9. 9. The display device according to claim 8, wherein a width of the auxiliary connection electrode is larger than a width of the spacer in a plan view.
10. 10. The display device according to claim 9, wherein, The separator overlaps a central portion of the auxiliary connection electrode in a width direction and exposes both side portions of the auxiliary connection electrode in the width direction, and In the display region, the plurality of second electrodes contact the two sides of the auxiliary connection electrode exposed through the separator.
11. 11. The display device according to claim 7, further comprising: And a voltage transmission electrode disposed on the power line, the voltage transmission electrode including a power line connection portion connected to the power line and an auxiliary connection electrode connection portion connected to the auxiliary connection electrode.
12. 12. The display device of claim 11, wherein, The voltage transmitting electrode and the plurality of second electrodes are arranged in the same layer, and In a boundary between the display region and the peripheral region, the separator separates the electrode layer into the plurality of second electrodes disposed in the display region and the voltage transmitting electrode disposed in the peripheral region.
13. 13. The display device of claim 11, wherein, An edge portion of the separator is disposed at a boundary between the display area and the peripheral area, The edge portion of the auxiliary connection electrode is disposed at the boundary between the display area and the peripheral area, and includes a first side portion disposed in the display area in a width direction, a second side portion disposed in the peripheral area in the width direction, and a central portion disposed between the first side portion and the second side portion, The edge portion of the separator overlaps the central portion of the auxiliary connection electrode, The separator exposes each of the first and second sides of the auxiliary connection electrode, and In the peripheral region, the auxiliary connection electrode connection portion of the voltage transmission electrode contacts the second side portion of the auxiliary connection electrode exposed through the edge portion of the separator.
14. 14. The display device according to claim 13, wherein in the display region, the plurality of second electrodes contact the first side portion of the auxiliary connection electrode exposed through the edge portion of the spacer.
15. 15. The display device according to claim 5, wherein the auxiliary connection electrode comprises a first auxiliary connection electrode, a second auxiliary connection electrode, and a third auxiliary connection electrode surrounding the first emission region, the second emission region, and the third emission region, respectively, in a plan view.
16. 16. The display device according to claim 15, wherein the first auxiliary connection electrode, the second auxiliary connection electrode, and the third auxiliary connection electrode are spaced apart from each other in a plan view.
17. 17. The display device according to claim 15, wherein each of the first auxiliary connection electrode, the second auxiliary connection electrode, and the third auxiliary connection electrode has a closed loop shape in a plan view.
18. 18. The display device of claim 15, wherein, The first auxiliary connection electrode includes a first side portion distant from the first emission region in a width direction and a second side portion close to the first emission region in the width direction, The separator overlaps the first side portion of the first auxiliary connection electrode and exposes the second side portion of the first auxiliary connection electrode, and In the display region, one of the plurality of second electrodes overlapping the first emission region contacts the second side portion of the first auxiliary connection electrode exposed through the separator.
19. 19. A display device, comprising: A substrate including a display region and a peripheral region disposed around the display region; A power supply line disposed in the peripheral region and supplying a low power voltage; an auxiliary electrode disposed in the display area and electrically connected to the power line; An auxiliary connection pattern disposed on the auxiliary electrode, electrically connected to the auxiliary electrode, and including a first conductive layer and a second conductive layer sequentially stacked on each other, the auxiliary connection pattern having a tip portion defined by a portion of the second conductive layer protruding from the first conductive layer; A plurality of first electrodes disposed in the display area and supplied with a high power voltage; a pixel defining layer disposed on the auxiliary connection pattern and the plurality of first electrodes and exposing a portion of each of the plurality of first electrodes to define an emission region; An electrode layer disposed on the auxiliary connection pattern and the plurality of first electrodes, electrically connected to the auxiliary connection pattern, and supplied with the low power voltage, and A separator disposed on the pixel defining layer and separating the electrode layer into a plurality of second electrodes spaced apart from each other in the display region.
20. 20. An electronic device, comprising: A window; a housing coupled with the window to provide an interior space, and A display device accommodated in the internal space provided between the housing and the window, the display device comprising: A substrate including a display region and a peripheral region disposed around the display region; A power supply line disposed in the peripheral region and supplying a low power voltage; A plurality of first electrodes disposed in the display area and supplied with a high power voltage; a pixel defining layer disposed on the plurality of first electrodes and exposing a portion of each of the plurality of first electrodes to define an emission region; an auxiliary connection electrode disposed on the pixel defining layer and electrically connected to the power line; an electrode layer provided on the plurality of first electrodes and the auxiliary connection electrode, electrically connected to the auxiliary connection electrode, and supplied with the low power voltage, and And a separator disposed on the auxiliary connection electrode, overlapping a portion of the auxiliary connection electrode, and separating the electrode layer into a plurality of second electrodes spaced apart from each other in the display region.

Description

Display device and electronic device including the same Technical Field Embodiments relate to a display device providing visual information and an electronic device including the display device. Background With the development of information technology, the importance of display devices, which are connection media between users and information, has been highlighted. The display device includes a light emitting element and a pixel driving circuit for driving the light emitting element. The light emitting element is driven by the pixel driving circuit to emit light. In order to improve the reliability of the display device, a connection between the light emitting element and the pixel driving circuit is being studied. Disclosure of Invention Technical purpose An object of the present invention is to provide a display device having improved display quality. It is another object of the present invention to provide an electronic device comprising a display device. However, the object of the present invention is not limited to this object, and can be extended in various ways without departing from the spirit and scope of the present invention. Technical proposal In order to achieve the above object of the present invention, a display device according to an embodiment may include a substrate including a display region and a peripheral region disposed around the display region, a power line disposed in the peripheral region and supplied with a low power voltage, a plurality of first electrodes disposed in the display region and supplied with a high power voltage, a pixel defining layer disposed on the plurality of first electrodes and exposing a portion of each of the plurality of first electrodes to define an emission region, an auxiliary connection electrode disposed on the pixel defining layer and electrically connected to the power line, an electrode layer disposed on the plurality of first electrodes and the auxiliary connection electrode, electrically connected to the auxiliary connection electrode, and supplied with the low power voltage, and a separator disposed on the auxiliary connection electrode, overlapping a portion of the auxiliary connection electrode, and separating the electrode layer into a plurality of second electrodes spaced apart from each other in the display region. In an embodiment, the display device may further include an auxiliary electrode disposed in the display area and electrically connected to the power line, and an auxiliary connection pattern disposed between the auxiliary electrode and the auxiliary connection electrode. The auxiliary connection pattern may include an auxiliary electrode connection portion connected to the auxiliary electrode and a light emitting connection portion connected to the auxiliary connection electrode. In an embodiment, the light emitting connection portion may be disposed between the emission region and the separator in a plan view. In an embodiment, the light emitting connection portion may overlap the spacer in a plan view. In an embodiment, the pixel defining layer may define a first emission region, a second emission region, and a third emission region that emit light of different colors. The plurality of second electrodes separated from each other by the separator may overlap the first emission region, the second emission region, and the third emission region, respectively. In an embodiment, the separator may have a mesh structure surrounding each of the plurality of second electrodes in a plan view. In an embodiment, the auxiliary connection electrode may have a mesh structure surrounding each of the first, second, and third emission regions in a plan view. In an embodiment, the outline of the auxiliary connection electrode may correspond to the outline of the separator in a plan view. In an embodiment, the auxiliary connection electrode may have a width greater than that of the separator. In an embodiment, the separator may overlap with a central portion of the auxiliary connection electrode in the width direction, and both side portions of the auxiliary connection electrode in the width direction may be exposed. In the display region, the plurality of second electrodes may contact both sides of the auxiliary connection electrode exposed through the separator. In an embodiment, the display device may further include a voltage transmission electrode disposed on the power line. The voltage transmitting electrode may include a power line connection portion connected to the power line and an auxiliary connection electrode connection portion connected to the auxiliary connection electrode. In an embodiment, the voltage transmitting electrode and the plurality of second electrodes may be disposed in the same layer. In the boundary between the display region and the peripheral region, the separator may separate the electrode layer into a plurality of second electrodes disposed in the display region and a voltage transmitting electrode disposed in the