KR-20260067432-A - DISPLAY APPARATUS AND ELECTRONIC DEVICE

Abstract

The present invention relates to a display device. According to one aspect of the present invention, the display device comprises: a substrate; a pixel electrode disposed on the substrate and including a light-emitting region and a connection region; a pixel defining film having a pixel opening that exposes the light-emitting region of the pixel electrode; a spacer disposed on the pixel defining film and having a spacer opening that overlaps with the pixel opening and exposes the light-emitting region of the pixel electrode; and an intermediate layer and a counter electrode covering the spacer and covering the pixel electrode exposed by the pixel opening and the spacer opening; wherein the connection region is disposed on a part of the periphery of the light-emitting region, the spacer opening is formed larger than the pixel opening in the light-emitting region, and the spacer opening is formed smaller than the pixel opening in the connection region.

Inventors

• 윤종현
• 강현우
• 권대기
• 김준영
• 박진아
• 양용호
• 이경민
• 정창호
• 황영인

Assignees

• 삼성디스플레이 주식회사

Dates

Publication Date

20260513

Application Date

20241104

Claims (20)

1. Substrate; A pixel electrode disposed on the above substrate and comprising a light-emitting region and a connection region; A pixel defining film having a pixel opening that exposes a light-emitting region of the pixel electrode; A spacer disposed on the pixel defining film and having a spacer opening that overlaps with the pixel opening to expose a light-emitting region of the pixel electrode; and It includes an intermediate layer and a counter electrode that cover the spacer and cover the pixel electrode exposed by the pixel opening and the spacer opening; The above connection area is positioned on a part of the perimeter of the above light-emitting area, and A display device in which the spacer opening in the light-emitting region is formed larger than the pixel opening, and the spacer opening in the connection region is formed smaller than the pixel opening.
2. In paragraph 1, The pixel opening includes a first main opening that overlaps with the light-emitting region and a connecting opening that overlaps with the connecting region, and The above connecting opening is an opening extending outward from the first main opening, a display device.
3. In paragraph 2, A display device in which the first main opening is provided in the shape of a polygon, and the connecting opening is positioned at the corner of the polygon.
4. In paragraph 2, A display device in which the perimeter of the spacer opening in the plan view crosses the connecting opening.
5. In paragraph 1, A display device in which the above spacer is not placed in the light-emitting area, and a part of the above spacer is placed in the connection area.
6. In paragraph 1, The above spacer opening includes a second main opening that overlaps with the light-emitting region and a protruding opening that overlaps with the connecting region, and A display device in which the above-mentioned protruding opening is a part that protrudes inward from the circumference of the above-mentioned second main opening.
7. In paragraph 6, A display device in which the second main opening is provided in a circular shape, and the protruding openings are provided in multiple numbers spaced apart along the circumference of the second main opening.
8. In paragraph 1, The above spacer is, A display device comprising a tail portion that is spaced inward from the perimeter of the spacer opening in a plan view and extends along the perimeter of the spacer opening.
9. In paragraph 8, A display device in which the above tail portion is positioned around the perimeter of the light-emitting area and is not positioned in the connection area.
10. In paragraph 8 A display device in which, in a plan view, the tail portion is positioned between the perimeter of the spacer opening and the perimeter of the pixel opening.
11. Substrate; A pixel electrode disposed on the above substrate and comprising a light-emitting region and a connection region; A pixel defining film having a pixel opening that exposes a light-emitting region of the pixel electrode; A spacer disposed on the pixel defining film and having a spacer opening that overlaps with the pixel opening to expose a light-emitting region of the pixel electrode; and It includes an intermediate layer and a counter electrode that cover the spacer and cover the pixel electrode exposed by the pixel opening and the spacer opening; The above connection area is positioned on a part of the perimeter of the above light-emitting area, and A display device in which the spacer is positioned on a part of the upper surface of the pixel defining film around the perimeter of the light-emitting region, and the spacer is positioned to completely cover the upper surface and side of the pixel defining film in the connection region.
12. In Paragraph 11, A display device in which the pixel defining film is tapered in reverse so as to be inclined toward the center of the light-emitting region as it moves upward from the substrate.
13. In Paragraph 12, A display device having a first angle formed between the inner surface of the pixel defining film defining the pixel opening and the upper surface of the substrate, wherein the angle is in the range of 90° or more and 170° or less.
14. In Paragraph 11, A display device in which the spacer is tapered in a normal shape so as to be inclined away from the center of the light-emitting region as it moves upward from the substrate.
15. In Paragraph 14, A display device in which the inner surface of the spacer defining the spacer opening forms a second angle with the substrate having a range of greater than 0° and less than or equal to 80°.
16. In Paragraph 11, A display device in which the intermediate layer and the counter electrode are separated at the periphery of the light-emitting region, such that the portion of the intermediate layer disposed on the pixel electrode is spaced apart from the portion of the intermediate layer disposed on the upper surface of the spacer, and the portion of the counter electrode disposed on the pixel electrode is spaced apart from the portion of the counter electrode disposed on the upper surface of the spacer.
17. In paragraph 1, A display device wherein the intermediate layer and the counter electrode cover the side of the spacer opening in the connection area, the portion of the intermediate layer disposed on the pixel electrode is connected to the portion of the intermediate layer disposed on the upper surface of the spacer, and the portion of the counter electrode disposed on the pixel electrode is connected to the portion of the counter electrode disposed on the upper surface of the spacer.
18. In Paragraph 11, The above spacer is, A display device comprising a tail portion disposed inside the pixel opening along the perimeter of the light-emitting region.
19. In Paragraph 18, A display device disposed between the side of the pixel defining film defining the pixel opening and the pixel electrode.
20. In Paragraph 19, A display device in which the third angle formed by the side of the tail portion facing the center of the light-emitting region with the upper surface of the substrate has a range of 30° or more and 70° or less.

Description

Display apparatus and electronic device The embodiments of the present invention relate to devices, and more specifically to display devices and electronic devices. A display device is a device that visually displays data. Display devices are used as displays for small products such as mobile phones, as well as for large products such as televisions. Some layers included in the display device are commonly provided in multiple display elements. Therefore, when current is supplied to one display element, current is also supplied to other adjacent display elements, which may degrade the color purity of the display device. The aforementioned background technology is technical information that the inventor possessed for the derivation of the present invention or acquired during the process of deriving the present invention, and it cannot be considered as publicly known technology disclosed to the general public prior to the filing of the present invention. FIG. 1 is a schematic perspective view of an electronic device according to one embodiment of the present invention. FIG. 2 is a simplified cross-sectional view of an electronic device according to one embodiment of the present invention, and is a cross-sectional view along the line II-II' of FIG. 1. FIG. 3 is a schematic plan view of a display device according to one embodiment of the present invention. FIGS. 4 and FIGS. 5 are equivalent circuit diagrams briefly illustrating any one pixel included in a display device according to embodiments of the present invention. FIG. 6 is a plan view showing a portion of a display device according to one embodiment of the present invention. FIGS. 7 to 10 are schematic plan views showing an enlarged portion of a display device according to an embodiment of the present invention, illustrating portion VII of FIG. 6. FIG. 11 is a cross-sectional view of a display device (10) schematically showing a cross-section taken along the line XI-XI' of FIG. 10. FIG. 12 is a cross-sectional view of a display device schematically showing a cross-section taken along the line XII-XII' of FIG. 10. FIG. 13 is a plan view schematically showing an enlarged portion of a display device according to one embodiment of the present invention, and may be a drawing similar to FIG. 10. FIG. 14 is a cross-sectional view of a display device schematically showing a cross-section taken along the line XIV-XIV' of FIG. 6. 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. Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings. When describing with reference to the drawings, identical or corresponding components are given the same reference numerals, and redundant descriptions thereof will be omitted. In the following examples, 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 following embodiments, when membranes, regions, components, etc. are described as being connected, this includes cases where the membranes, regions, components are directly connected and/or cases where other membranes, regions, components are interposed between them to be indirectly connected. Additionally, when membranes, regions, components, etc. are described as being electrically connected, this includes cases where the membranes, regions, components, etc. are directly electrically connected and/or cases where other membranes, regions, components, etc. are interposed between them to be indirectly electrically connected. 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, so the present invention is not necessarily limited to what is illustrated. In the follo