Search

KR-20260067423-A - display device And electronic device

KR20260067423AKR 20260067423 AKR20260067423 AKR 20260067423AKR-20260067423-A

Abstract

The present invention relates to a display device and an electronic device capable of maintaining a uniform light blocking rate in all regions of a substrate, comprising: a substrate; a transistor layer on the upper surface of the substrate; a display element layer on the transistor layer; an encapsulation layer on the display element layer; a polarizing layer on the encapsulation layer; a substrate cover layer on the lower surface of the substrate; and through holes penetrating the substrate cover layer, the substrate, the transistor layer, the display element layer, the encapsulation layer, and the polarizing layer in a display region of the substrate, wherein the thickness of the substrate cover layer is substantially the same in the entire region of the substrate cover layer.

Inventors

  • 권오준
  • 김대일
  • 성우용

Assignees

  • 삼성디스플레이 주식회사

Dates

Publication Date
20260513
Application Date
20241104

Claims (20)

  1. Substrate; A transistor layer on the upper surface of the above substrate; A display element layer on the transistor layer above; Encapsulation layer on the above-mentioned indicator layer; Polarization layer on the above-mentioned encapsulation layer; A substrate cover layer on the lower surface of the above substrate; and The display area of the substrate includes a through hole penetrating the substrate cover layer, the substrate, the transistor layer, the display element layer, the encapsulation layer, and the polarization layer, and A display device in which the thickness of the substrate cover layer is substantially the same over the entire area of the substrate cover layer.
  2. In Article 1, The above substrate cover layer is, An upper surface in contact with the lower surface of the above substrate; A lower surface positioned opposite the upper surface of the above substrate cover layer; A display device including an inner surface defining the inner wall of the above-mentioned through hole.
  3. In Article 2, A display device in which the upper surface of the substrate cover layer and the lower surface of the substrate cover layer are parallel to each other.
  4. In Article 2, The interior angle between the upper surface of the substrate cover layer and the inner surface of the substrate cover layer is 90 degrees, and A display device in which the inner angle between the lower surface of the substrate cover layer and the inner surface of the substrate cover layer is 90 degrees.
  5. In Article 1, The above-mentioned through hole is a display device comprising a plurality of sub-through holes having different diameters.
  6. In Article 5, The above through hole is, A first sub-through hole penetrating the substrate; A second sub-through hole having a diameter larger than the diameter of the first sub-through hole and penetrating the transistor layer, the display element layer, the encapsulation layer and the polarization layer; and A display device comprising a third sub-through hole having a diameter larger than the diameter of the second sub-through hole and penetrating the substrate cover layer.
  7. In Article 6, From a planar perspective, the second sub-through hole is a display device surrounding the first sub-through hole.
  8. In Article 6, In a planar view, the third sub-through hole is a display device surrounding the first sub-through hole and the second sub-through hole.
  9. In Article 5, The above through hole is, A first sub-through hole penetrating the substrate cover layer and the substrate; and A display device comprising a second sub-through hole having a diameter larger than the diameter of the first sub-through hole and penetrating the transistor layer, the display element layer, the encapsulation layer, and the polarization layer.
  10. In Article 9, From a planar perspective, the second sub-through hole is a display device surrounding the first sub-through hole.
  11. In Article 1, A display device further comprising a functional layer disposed on the lower surface of the substrate cover layer.
  12. In Article 11, The above through hole is a display device that further penetrates the functional layer in the display area of the substrate.
  13. In Article 12, The above through hole is, A first sub-through hole penetrating the substrate; A second sub-through hole having a diameter larger than the diameter of the first sub-through hole and penetrating the transistor layer, the display element layer, the encapsulation layer, and the polarization layer; A third sub-through hole having a diameter larger than the diameter of the second sub-through hole and penetrating the substrate cover layer; and A display device comprising a fourth sub-through hole having a diameter larger than the diameter of the third sub-through hole and penetrating the functional layer.
  14. In Article 1, A display device further comprising an optical module inserted into the above-mentioned through hole.
  15. Substrate; A transistor layer on the upper surface of the above substrate; A display element layer on the above transistor layer; Encapsulation layer on the above-mentioned indicator layer; Polarization layer on the above-mentioned encapsulation layer; A substrate cover layer on the lower surface of the above substrate; and The display area of the substrate includes a through hole penetrating the substrate cover layer, the substrate, the transistor layer, the display element layer, the encapsulation layer, and the polarization layer, and The above substrate cover layer is, An upper surface in contact with the lower surface of the above substrate; A lower surface disposed opposite the upper surface of the substrate cover layer; and It includes an inner surface defining the inner wall of the above-mentioned through hole, and A display device in which the inclination of the inner surface of the substrate cover layer and the inclination of the lower surface of the substrate cover layer are different.
  16. In Article 15, A display device in which the inclination of the inner surface of the substrate cover layer is greater than the inclination of the lower surface of the substrate cover layer.
  17. In Article 15, The above-mentioned through hole is a display device comprising a plurality of sub-through holes having different diameters.
  18. In Article 17, The above through hole is, A first sub-through hole penetrating the substrate; A second sub-through hole having a diameter larger than the diameter of the first sub-through hole and penetrating the transistor layer, the display element layer, the encapsulation layer and the polarization layer; and A display device comprising a third sub-through hole having a diameter larger than the diameter of the second sub-through hole and penetrating the substrate cover layer.
  19. In Article 18, From a planar perspective, the second sub-through hole is a display device surrounding the first sub-through hole.
  20. In Article 18, In a planar view, the third sub-through hole is a display device surrounding the first sub-through hole and the second sub-through hole.

Description

Display device and electronic device The present invention relates to a display device, and in particular to a display device capable of maintaining a uniform light blocking rate in all regions of a substrate, and an electronic device including the same. Various types of electronic devices, including display modules, are used to provide video information, and these devices may include electronic modules that receive external signals or provide output signals externally. For example, electronic modules may include camera modules, and there is an increasing demand for display devices capable of obtaining high-quality captured images. FIG. 1 is a perspective view showing a display device according to one embodiment. FIG. 2 is a plan view showing a display panel according to one embodiment. FIG. 3 is a cross-sectional view showing an example of a display device cut along I-I' of FIG. 1. Figure 4 is a cross-sectional view showing an example of a display device in which the circuit board in Figure 3 is bent. FIG. 5 is a cross-sectional view of a part of a display device according to one embodiment. FIG. 6 is a cross-sectional view of a part of a display device according to another embodiment. Figure 7 is an enlarged view of area B of Figure 6. FIG. 8 is a cross-sectional view of a part of a display device according to another embodiment. FIG. 9 is a cross-sectional view of a part of a display device according to another embodiment. FIG. 10 is a cross-sectional view of a display device according to another embodiment. FIG. 11 is a cross-sectional view of a part of a display device according to another embodiment. FIG. 12 is a cross-sectional view of a part of a display device according to another embodiment. FIGS. 13, FIGS. 14, FIGS. 15, FIGS. 16, FIGS. 17, FIGS. 18, FIGS. 19, FIGS. 20, FIGS. 21, FIGS. 22 and FIGS. 23 are process cross-sectional views for explaining a method of manufacturing a display device according to one embodiment. FIG. 24 is a drawing showing a dummy hole, a first sub-through hole, a substrate, and a substrate cover layer according to one embodiment. FIG. 25 is a drawing showing a third sub-through hole, a first sub-through hole, a substrate, and a substrate cover layer according to one embodiment. FIGS. 26, FIGS. 27 and FIGS. 28 are process cross-sectional views for illustrating a method of manufacturing a display device according to another embodiment. FIGS. 29, FIGS. 30, FIGS. 31 and FIGS. 32 are process cross-sectional views for illustrating a method of manufacturing a display device according to another embodiment. FIG. 33 is a perspective view showing an electronic device to which a display device according to one embodiment is applied. 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. When elements or layers are referred to as being "on" another element or layer, this includes cases where another layer or element is interposed directly on or in the middle of another element. Throughout the specification, the same reference numerals refer to the same components. Shapes, sizes, ratios, angles, numbers, etc., disclosed in the drawings for describing embodiments are exemplary and therefore the invention is not limited to the depicted details. 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 present invention. The features of each of the various embodiments of the present invention may be combined or combined with one another, either partially or wholly, and may technically enable various interlocking and operation. Each embodiment may be implemented independently of one another or may be implemented together in an associated relationship. Specific embodiments will be described below with reference to the attached drawings. FIG. 1 is a perspective view showing a display device according to one embodiment. FIG. 2 is a plan view showing a display panel according to one embodiment. Referring to FIG. 1, a display device (10) according to one embodiment is a device for displaying video or still images, and can be used as a display screen for various products such as televisions, laptops, monitors, billboards, and Internet of Things (IOT) devic