KR-102962712-B1 - Display Device

KR102962712B1KR 102962712 B1KR102962712 B1KR 102962712B1KR-102962712-B1

Abstract

An embodiment of the present invention discloses a display device comprising: an inorganic insulating layer having a groove surrounding a pixel area; a first thin-film transistor disposed on a first pixel area of a substrate; a second thin-film transistor disposed on a second pixel area of the substrate and symmetrical to the first thin-film transistor; a first electrode layer disposed on the gate electrodes, overlapping the gate electrode of the first thin-film transistor and the gate electrode of the second thin-film transistor; an organic layer filling the groove; a data line extending in a second direction different from the first direction across the organic layer; and a first connecting wire extending in the first direction across the organic layer, disposed in a layer between the first electrode layer and the data line, and overlapping the first electrode layer.

Inventors

송희림
이유진
김혜민
이철곤

Assignees

삼성디스플레이 주식회사

Dates

Publication Date: 20260508
Application Date: 20241224

Claims (20)

A substrate comprising a display area including pixel regions, wherein each of the pixel regions includes two first subpixel regions and two second subpixel regions adjacent in a first direction; An inorganic insulating layer comprising inorganic patterns, wherein each inorganic pattern corresponds to each pixel region comprising the first subpixel region and the second subpixel region; An organic layer disposed between the above-mentioned inorganic patterns and surrounding each pixel region comprising two of the first subpixel regions and the second subpixel regions; and On the above-mentioned inorganic insulating layer, a first conductive line extending in the first direction and crossing the pixel regions; is included, A display device in which the first conductive line is disposed in the display area, crosses the organic layer, and electrically connects signal lines disposed in each pixel area.
In paragraph 1, It further includes a plurality of thin-film transistors; and A display device in which each of the plurality of thin-film transistors is disposed in each of the first subpixel region and the second subpixel region.
In paragraph 2, Further comprising an organic insulating layer on the above inorganic insulating layer; A display device in which the above plurality of thin-film transistors are disposed between the substrate and the organic insulating layer.
In paragraph 1, A first thin-film transistor including a first semiconductor layer in the first subpixel region; and The second thin-film transistor including a second semiconductor layer in the second subpixel region is further included, At least one of the above signal lines is a scan line that extends in the first direction and crosses the first subpixel area and the second subpixel area, and A display device in which the above scan line overlaps the first semiconductor layer and the second semiconductor layer.
In paragraph 1, A first driving thin-film transistor comprising a first semiconductor layer and a first gate electrode in the first subpixel region; and The second driving thin-film transistor comprising a second semiconductor layer and a second gate electrode in the second subpixel region is further included. At least one of the above signal lines extends in the first direction and includes an electrode layer that crosses the first subpixel region and the second subpixel region. A display device in which the electrode layer overlaps the first semiconductor layer and the second semiconductor layer.
In paragraph 5, An organic insulating layer on the above inorganic insulating layer; and Further comprising a power line extending in a second direction and crossing the pixel regions on the above organic layer, and The above power line is a display device electrically connected to the above first conductor line.
In paragraph 5, An organic insulating layer on the above inorganic insulating layer; and Further comprising a data line extending in a second direction and crossing the pixel regions on the organic layer above, A display device in which the first conductive line is disposed between the electrode layer and the data line and overlaps the electrode layer.
In Paragraph 7, A display device in which a constant voltage is applied to the electrode layer and the first conductive line.
In Paragraph 7, It further includes a power line extending in the second direction and crossing the pixel regions; and The above power line and the above data line are placed on the same layer, and The above power line is a display device electrically connected to the above first conductor line.
In paragraph 1, Semiconductor layer of each pixel area; and A display device further comprising: a second conductive line extending in a second direction different from the first direction and electrically connecting semiconductor layers in a pair of pixel regions adjacent to each other in the second direction.
In paragraph 1, A display element comprising a pixel electrode, a counter electrode facing the pixel electrode, and a light-emitting layer between the pixel electrode and the counter electrode; and A display device further comprising at least two organic insulating layers disposed between the inorganic insulating layer and the pixel electrode.
In Paragraph 11, A display device in which the pixel electrode overlaps the organic layer.
In paragraph 1, A display device in which a weapon pattern of the first row and a weapon pattern of the second row adjacent to the first row are offset from each other in the first direction.
A substrate comprising a first pixel region and a second pixel region adjacent to the first pixel region in a first direction; A first driving thin-film transistor disposed in the first pixel area; A second driving thin-film transistor disposed in the second pixel region above; The first gate electrode of the first driving thin-film transistor and the second gate electrode of the second driving thin-film transistor are superimposed, and an electrode layer disposed on the first gate electrode and the second gate electrode; Weapon patterns corresponding to the first pixel area and the second pixel area; and A display device comprising: an organic layer surrounding the first pixel region and the second pixel region, and including a hole corresponding to the inorganic pattern.
In Paragraph 14, Further comprising a conductive line disposed on the electrode layer, overlapping the electrode layer, and electrically connected to the electrode layer. A display device in which the above-mentioned conductive line extends in the above-mentioned first direction and crosses the above-mentioned organic layer.
In paragraph 15, An organic insulating layer disposed on the above inorganic pattern and the above organic layer; and A power line disposed on the organic insulating layer, extending in a second direction and crossing the organic layer; further comprising The above power line is a display device electrically connected to the above conductive line.
In Paragraph 16, An organic insulating layer disposed on the above inorganic pattern and the above organic layer; and A data line disposed on the organic insulating layer, extending in the second direction and crossing the organic layer; further comprising The above conductive line is a display device disposed between the electrode layer and the data line.
In Paragraph 17, A display device in which a constant voltage is applied to the electrode layer and the conductive wire.
In Paragraph 17, It further includes a power line extending in the second direction and crossing the organic layer; The above power line and the above data line are placed on the same layer, and The above power line is a display device electrically connected to the above conductive line.
In Paragraph 14, At least two organic insulating layers disposed on the above inorganic pattern and the above organic layer; and A display device further comprising a display element disposed on the above organic insulating layers and including a pixel electrode, a counter electrode facing the pixel electrode, and a light-emitting layer between the pixel electrode and the counter electrode.

Description

Display Device Embodiments of the present invention relate to a display device, in particular a foldable display device that can be folded or bent. Recently, the applications of display devices have become more diverse. In addition, as display devices become thinner and lighter, their range of use is expanding. Research is being conducted to implement flexible display devices, such as foldable or rollable displays, in addition to flat-panel displays. FIGS. 1a and FIGS. 1b are each schematic plan views showing a display device before folding according to an embodiment of the present invention. FIGS. 2a and 2b are cross-sectional views schematically illustrating a folding state display device according to one embodiment of the present invention. FIGS. 3a and FIGS. 3b are each cross-sectional views of a display device according to an embodiment of the present invention. FIG. 4 is an equivalent circuit diagram schematically showing a pixel arranged in a display panel according to one embodiment of the present invention. FIG. 5 is a schematic layout diagram showing the positions of a plurality of thin-film transistors and capacitors for each of two adjacent pixels according to one embodiment of the present invention. FIGS. 6a to 6i are layout diagrams schematically illustrating, layer by layer, components such as a plurality of thin-film transistors, capacitors, and pixel electrodes shown in FIG. 4. Figures 7 to 9 are each cross-sectional views along the lines I-I', II-II', and III-III' of Figure 5. FIG. 10 is a plan view schematically illustrating the relationship between pixel regions and connecting wires according to one embodiment of the present invention. FIG. 11 is a schematic layout diagram showing the positions of a plurality of thin-film transistors and capacitors of two adjacent pixels according to another embodiment of the present invention. FIG. 12a is a partial enlarged view showing the left capacitor of FIG. 11, and FIG. 12b is a cross-sectional view along the line IV-IV' of FIG. 12a. FIG. 13 is a schematic layout diagram showing the positions of a plurality of thin-film transistors and capacitors of two adjacent pixels according to another embodiment of the present invention. FIGS. 14a to 14h are layout diagrams schematically illustrating, layer by layer, components such as a plurality of thin-film transistors, capacitors, and pixel electrodes shown in FIG. 13. FIG. 15 is a cross-sectional view along the V-V', VI-VI' and VII-VII' lines of FIG. 13. FIG. 16 is a schematic layout diagram showing the positions of a plurality of thin-film transistors and capacitors of two adjacent pixels according to another embodiment of the present invention. FIGS. 17a to 17f are layout diagrams schematically illustrating, layer by layer, components such as a plurality of thin-film transistors, capacitors, and pixel electrodes shown in FIG. 16. FIGS. 18 to 20 are each cross-sectional views along the lines VIII-VIII', IX-IX' and X-X' of FIG. 16. FIG. 21 is a cross-sectional view schematically illustrating a display device according to one embodiment of the present invention. Figure 22 is a diagram showing the relationship between the black matrix and the light-emitting region of Figure 21. Figure 23 is a diagram showing the relationship between the color filter and the light-emitting region of Figure 21. The present invention is capable of various modifications and may have various embodiments; specific embodiments are illustrated in the drawings and described in detail in the detailed description. The effects and features of the present invention, and the methods for achieving them, will become clear by referring to the embodiments described below in detail together with the drawings. However, the present invention is not limited to the embodiments disclosed below but can be implemented in various forms. In the following embodiments, terms such as first, second, etc. are used not in a limiting sense, but for the purpose of distinguishing one component from another component. In the following examples, singular expressions include plural expressions unless the context clearly indicates otherwise. In the following embodiments, terms such as "include" or "have" mean that the features or components described in the specification are present, and do not preclude the possibility that one or more other features or components may be added. In the following embodiments, when a part such as a film, region, or component is described as being on or above another part, it includes not only cases where it is directly on top of another part, but also cases where another film, region, or component is interposed in between. In the drawings, the size of components may be exaggerated or reduced for convenience of explanation. For example, the size and thickness of each component shown in the drawings are depicted arbitrarily for convenience of explanation, and therefore the present invention is not necessarily limited to what is illust