KR-20260065103-A - DISPLAY DEVICE AND ELECTRONIC DEVICE

Abstract

According to one aspect of the present invention, a display device is provided comprising: a first subpixel including a first semiconductor pattern, a first power line on the first semiconductor pattern, and a first lower power line below the first semiconductor pattern; a second subpixel including a second semiconductor pattern, a second power line on the second semiconductor pattern, and a second lower power line below the second semiconductor pattern; and a third subpixel including a third semiconductor pattern, a third power line on the third semiconductor pattern, and a third lower power line below the third semiconductor pattern; wherein the third lower power line is separated from the first lower power line and the second lower power line and connected to the third power line.

Inventors

• 김지선
• 강선미
• 김귀현
• 박희진
• 이세현
• 정경훈

Assignees

• 삼성디스플레이 주식회사

Dates

Publication Date

20260508

Application Date

20241031

Claims (20)

1. A first subpixel circuit including a thin-film transistor including a first semiconductor pattern; A second subpixel circuit including a thin-film transistor including a second semiconductor pattern; A third subpixel circuit including a thin-film transistor including a third semiconductor pattern; A first power line disposed on the first semiconductor pattern and applying a first power voltage to the first subpixel circuit; A second power line disposed on the second semiconductor pattern and applying a second power voltage to the second subpixel circuit; A third power line disposed on the third semiconductor pattern and applying a third power voltage to the second subpixel circuit; A first lower power line disposed below the first semiconductor pattern; A second lower power line disposed below the second semiconductor pattern; and A third lower power line disposed below the third semiconductor pattern; comprising, The value of the first power supply voltage and the value of the second power supply voltage are different from the value of the third power supply voltage, and At least one of the first lower power line, the second lower power line, and the third lower power line is connected to a corresponding power line among the first power line, the second power line, and the third power line. Display device.
2. In Article 1, The first power line and the second power line are connected to each other and separated from the third power line. Display device.
3. In Article 1, The first lower power line and the second lower power line are connected to each other and separated from the third lower power line. Display device.
4. In Paragraph 3, One of the first lower power line and the second lower power line is connected to a corresponding power line among the first power line and the second power line, and The other lower power line among the first lower power line and the second lower power line is separated from the other corresponding power line among the first power line and the second power line. Display device.
5. In Paragraph 3, It includes a display area in which the first subpixel circuit, the second subpixel circuit, and the third subpixel circuit are arranged, and a peripheral area outside the display area. The first lower power line and the second lower power line extend to the surrounding area, Display device.
6. In Article 5, The first lower power line and the second lower power line are connected to a power voltage line disposed in the surrounding area to receive the first power voltage or the second power voltage, and The above third lower power line is connected to the above third power line and receives the above third power voltage, Display device.
7. In Article 1, On a flat plane, the first lower power line and the second lower power line are integrally provided and have a mesh shape, Display device.
8. In Article 7, The above third lower power line has an island shape disposed within the opening of the mesh, Display device.
9. In Article 8, The island shape of the third lower power line has protrusions extending toward the first lower power line or the second lower power line. Display device.
10. In Article 1, The first power supply voltage and the second power supply voltage are the same. Display device.
11. A first subpixel comprising a first semiconductor pattern, a first power line on the first semiconductor pattern, and a first lower power line below the first semiconductor pattern; A second subpixel comprising a second semiconductor pattern, a second power line on the second semiconductor pattern, and a second lower power line below the second semiconductor pattern; and A third subpixel comprising a third semiconductor pattern, a third power line on the third semiconductor pattern, and a third lower power line below the third semiconductor pattern; wherein The third lower power line is separated from the first lower power line and the second lower power line and is connected to the third power line. Display device.
12. In Article 11, The first lower power line and the second lower power line are connected to each other. Display device.
13. In Article 12, The first lower power line and the second lower power line are connected to at least one of the first power line and the second power line. Display device.
14. In Article 12, The display area in which the first subpixel, the second subpixel, and the third subpixel are arranged, and the surrounding area outside the display area are included. The first lower power line and the second lower power line extend to the surrounding area, Display device.
15. In Article 14, The first lower power line and the second lower power line are connected together to a power voltage line disposed in the surrounding area. Display device.
16. In Article 11, On a flat plane, the first lower power line and the second lower power line are integrally provided and have a mesh shape, Display device.
17. In Article 16, The above third lower power line has an island shape disposed within the opening of the mesh, Display device.
18. In Article 17, The island shape of the third lower power line has protrusions extending toward the first lower power line or the second lower power line. Display device.
19. In Article 11, A first power supply voltage is applied to the first power supply line, a second power supply voltage having the same value as the first power supply voltage is applied to the second power supply line, and a third power supply voltage having a different value from the first power supply voltage is applied to the third power supply line. Display device.
20. An electronic device comprising a housing and a display device disposed within the housing, The above display device is, A first subpixel circuit including a thin-film transistor including a first semiconductor pattern; A second subpixel circuit including a thin-film transistor including a second semiconductor pattern; A third subpixel circuit including a thin-film transistor including a third semiconductor pattern; A first power line disposed on the first semiconductor pattern and applying a first power voltage to the first subpixel circuit; A second power line disposed on the second semiconductor pattern and applying a second power voltage to the second subpixel circuit; A third power line disposed on the third semiconductor pattern and applying a third power voltage to the second subpixel circuit; A first lower power line disposed below the first semiconductor pattern; A second lower power line disposed below the second semiconductor pattern; and A third lower power line disposed below the third semiconductor pattern; comprising, The first power supply voltage and the second power supply voltage are different from the third power supply voltage, and At least one of the first lower power line, the second lower power line, and the third lower power line is connected to a corresponding power line among the first power line, the second power line, and the third power line. Electronic device.

Description

Display Device and Electronic Device The present invention relates to a display device and an electronic device including a display device. The display device may include a light-emitting diode as a light-emitting element. A display device is a device that visually displays data. The display device may include pixels as display elements. A pixel may include a plurality of subpixels. A subpixel may include a light-emitting element and a subpixel circuit connected to the light-emitting element to drive the light-emitting element. The light-emitting element may include a light-emitting diode, such as an organic light-emitting diode. The subpixel circuit may include one or more thin-film transistors and various wirings. FIG. 1 is a schematic plan view of an electronic device according to one embodiment of the present invention. FIG. 2a is a schematic plan view of a part of a display device according to embodiments of the present invention. FIG. 2b is a schematic plan view of a part of a display device according to embodiments of the present invention. FIG. 2c is a schematic plan view of a part of a display device according to embodiments of the present invention. FIG. 3a is an equivalent circuit diagram of a first subpixel according to one embodiment of the present invention. FIG. 3b is an equivalent circuit diagram of a second subpixel according to one embodiment of the present invention. FIG. 3c is an equivalent circuit diagram of a third subpixel according to one embodiment of the present invention. FIG. 4a is a cross-sectional view of a display device according to one embodiment of the present invention. FIG. 4b is a cross-sectional view of a display device according to one embodiment of the present invention. FIG. 5 is a cross-sectional view of a display device according to one embodiment of the present invention. FIG. 6 is a cross-sectional view of a display device according to one embodiment of the present invention. FIG. 7 is a cross-sectional view of a display device according to one embodiment of the present invention. FIG. 8 is a cross-sectional view of a display device according to one embodiment of the present invention. FIG. 9 is a cross-sectional view of a display device according to one embodiment of the present invention. FIG. 10 is a plan view of a part of a display device according to one embodiment of the present invention. FIG. 11 is a plan view of a part of a display device according to one embodiment of the present invention. FIG. 12 is a plan view of a part of a display device according to one embodiment of the present invention. FIG. 13 is a plan view of a part of a display device according to one embodiment of the present invention. 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 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, so the present invention is not necessarily limited to what is illustrated. Where an embodiment can be implemented differently, a specific process sequence may be performed differently from the order described. For example, two processes described consecutively may be performed substantially simultaneously or proceed in the reverse order of the description. In the following embodiments, when it is stated that a membrane, region, com