KR-20260064920-A - DISPLAY DEVICE AND METHOD FOR MANUFACTURING DISPLAY DEVICE, AND ELECTRONIC DEVICE

Abstract

A display device according to one embodiment comprises a light-emitting element layer disposed on a substrate, a thin film encapsulation layer disposed on the light-emitting element layer, a counter substrate facing the substrate, a color filter layer disposed on one surface of the counter substrate having a plurality of light-transmitting regions and light-blocking regions defined therein, a wavelength conversion layer disposed on the color filter layer, and a filling layer disposed between the wavelength conversion layer and the thin film encapsulation layer, wherein the wavelength conversion layer comprises a bank overlapping with the light-blocking region, a plurality of light-transmitting members disposed between the banks and spaced apart from each other, and an organic layer disposed between the banks and spaced apart from each other and covering the plurality of light-transmitting members, wherein the lower surface of the organic layer and the lower surface of the bank are disposed on the same plane.

Inventors

• 이창훈
• 김태훈
• 정강섭

Assignees

• 삼성디스플레이 주식회사

Dates

Publication Date

20260508

Application Date

20241030

Claims (20)

1. A light-emitting element layer disposed on a substrate; A thin film encapsulation layer disposed on the above-mentioned light-emitting element layer; A counter substrate facing the above substrate; A color filter layer disposed on one surface of the above-mentioned opposing substrate, having a plurality of light-transmitting and light-blocking regions defined therein; A wavelength conversion layer disposed on the color filter layer above; and It includes a filling layer disposed between the wavelength conversion layer and the thin film encapsulation layer, The above wavelength conversion layer is, A bank overlapping with the above-mentioned shading area; A plurality of light-emitting members disposed between the banks and spaced apart from each other; and It includes an organic layer that covers the plurality of light-transmitting members and is spaced apart from each other between the banks. A display device in which the lower surface of the organic layer and the lower surface of the bank are arranged on the same plane.
2. In Article 1, The above bank and the above organic layer are a display device in contact with the above-described filling layer.
3. In Article 1, A display device in which the above organic layer overlaps with the above plurality of light-transmitting regions and does not overlap with the above light-blocking regions.
4. In Article 1, A display device in which the refractive index of the above organic layer is 1.7 or less.
5. In Article 1, The above bank is an indicator device that indicates non-liquidity.
6. In Article 1, A display device further comprising the above organic layer and a first capping layer covering the bank.
7. In Article 6, A display device in which the upper surface of the organic layer contacts each of the plurality of light-transmitting members, and the lower surface of the organic layer contacts each of the first capping layers.
8. In Article 6, The above first capping layer is a flat display device.
9. In Article 6, A display device further comprising a second capping layer disposed between the plurality of light-transmitting members and the organic layer, and covering the plurality of light-transmitting members.
10. In Article 9, The second capping layer is spaced apart from each other between the banks and is a display device extending along the side of the bank.
11. In Article 9, The above organic layer is a display device surrounded by the first capping layer and the second capping layer.
12. In Article 1, A display device further comprising a first capping layer disposed between the plurality of light-transmitting members and the organic layer, and covering the plurality of light-transmitting members.
13. In Article 12, The first capping layer is spaced apart from each other between the banks and is a display device extending along the side of the bank.
14. A light-emitting element layer disposed on a substrate; A thin film encapsulation layer disposed on the above-mentioned light-emitting element layer; A wavelength conversion layer disposed on the above-mentioned thin film encapsulation layer; A counter substrate facing the above substrate; A color filter layer disposed on one surface of the above-mentioned opposing substrate, having a plurality of light-transmitting and light-blocking regions defined therein; It includes a charging layer disposed between the wavelength conversion layer and the color filter layer, and The above wavelength conversion layer is, A bank overlapping with the above-mentioned shading area; A plurality of light-emitting members disposed between the banks and spaced apart from each other; and It includes an organic layer that covers the plurality of light-transmitting members and is spaced apart from each other between the banks. A display device in which the height from the upper surface of the thin film encapsulation layer to the upper surface of the organic layer is the same as the height to the upper surface of the bank.
15. In Article 14, The above bank and the above organic layer are a display device in contact with the above-described filling layer.
16. In Article 14, A display device in which the above organic layer overlaps with the above plurality of light-transmitting regions and does not overlap with the above light-blocking regions.
17. In Article 14, A display device further comprising a first capping layer disposed on the organic layer and the bank, and covering the organic layer and the bank.
18. In Article 17, A display device in which the lower surface of the organic layer contacts each of the plurality of light-transmitting members, and the upper surface of the organic layer contacts each of the first capping layers.
19. In Article 17, The above first capping layer is a flat display device.
20. In Article 17, A display device further comprising a second capping layer disposed between the plurality of light-transmitting members and the organic layer, and covering the plurality of light-transmitting members.

Description

Display device and method for manufacturing the display device and electronic device The present invention relates to a display device, a method for manufacturing the same, and an electronic device. As the information society develops, the demand for display devices to show images is increasing in various forms. For example, display devices are being applied to a wide range of electronic devices, such as smartphones, digital cameras, laptop computers, navigation systems, and smart televisions. The display device may be a flat panel display device such as a Liquid Crystal Display Device, a Field Emission Display Device, or a Light Emitting Display Device. The Light Emitting Display Device includes an organic light-emitting display device comprising an organic light-emitting element, an inorganic light-emitting display device comprising an inorganic light-emitting element such as an inorganic semiconductor, and a micro-light-emitting display device comprising an ultra-solid light-emitting element. An organic light-emitting device may include two opposing electrodes and a light-emitting layer interposed between them. The light-emitting layer receives electrons and holes from the two electrodes and recombines to generate excitons, and light may be emitted as the generated excitons change from an excited state to a ground state. Organic light-emitting display devices, including organic light-emitting diodes, are attracting attention as next-generation display devices because they do not require light sources such as backlight units, allowing for low power consumption and lightweight, thin designs, as well as possessing high-quality characteristics such as a wide viewing angle, high brightness and contrast, and fast response speed. FIG. 1 is a plan view of a display device according to one embodiment. FIG. 2 is a schematic layout diagram showing wiring included in a display device according to one embodiment. FIG. 3 is an equivalent circuit diagram of a subpixel according to one embodiment. FIG. 4 is a cross-sectional view schematically showing a display device according to one embodiment. FIG. 5 is a cross-sectional view schematically showing a display device according to one embodiment. FIGS. 6 to 12 are cross-sectional views showing a method for manufacturing a display device according to one embodiment, by process. FIG. 13 is a cross-sectional view showing a display device according to another embodiment. FIGS. 14 to 17 are cross-sectional views showing a method for manufacturing a display device according to another embodiment, by process. FIG. 18 is a cross-sectional view showing a display device according to another embodiment. FIG. 19 is a cross-sectional view showing a display device according to another embodiment. FIGS. 20 to 25 are cross-sectional views showing a method for manufacturing a display device according to another embodiment, by process. FIG. 26 is a cross-sectional view showing a display device according to another embodiment. FIGS. 27 to 30 are cross-sectional views showing a method for manufacturing a display device according to another embodiment, by process. FIG. 31 is a cross-sectional view showing a display device according to another embodiment. Figure 32 is a diagram showing images of the ink formed according to Experimental Example 1. Figure 33 is a diagram showing images of the ink formed according to Experimental Example 2. Figures 34 and 35 are diagrams showing the image and size of the ink drops of the samples according to Experimental Example 3, and the surface energy of the bank surface. The advantages 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 accompanying drawings. However, the present invention is not limited to the embodiments disclosed below but may be implemented in various different forms. These embodiments are provided merely to ensure that the disclosure of the present invention is complete and to fully inform those skilled in the art of the scope of the invention, and the present invention is defined only by the scope of the claims. Elements or layers referred to as "on" another element or layer include cases where another layer or element is interposed directly above or in the middle of another element. Likewise, "below," "left," and "right" refer to cases where they are interposed immediately adjacent to another element or where another layer or material is interposed in the middle. Throughout the specification, the same reference numerals refer to the same components. Although terms such as "first," "second," etc., are used to describe various components, it goes without saying that these components are not limited by these terms. These terms are used merely to distinguish one component from another. Therefore, it goes without saying that the first component mentioned below may also be the second component within the technical scope of the