KR-20260067455-A - DISPLAY DEVICE AND ELECTRONIC DEVICE INCLUDING THE SAME

Abstract

One embodiment of the present invention provides a display device comprising at least one folding region, wherein the display device comprises a display panel and a cover window disposed on the display panel, and the cover window comprises a base film and a functional layer positioned on the base film and comprising an anti-fingerprint material, wherein at least a portion of the anti-fingerprint material is floated on the outermost surface.

Inventors

• 이희영
• 안성국
• 한소연
• 고지선
• 김정욱
• 엄지미
• 윤주호
• 이승리

Assignees

• 삼성디스플레이 주식회사

Dates

Publication Date

20260513

Application Date

20241105

Claims (20)

1. In a display device comprising at least one folding region, A display panel that displays a screen; and A cover window disposed on the above-mentioned display panel; Includes, The above cover window is It includes a base film and a functional layer located on the base film, the functional layer having a thickness in the range of 2 micrometers or more and 21 micrometers or less, and The above functional layer A hard coating layer located on the above base film and comprising a hard coating agent; and A refractive layer disposed on the hard coating layer, comprising an anti-fingerprint material, wherein at least a portion of the anti-fingerprint material is floated on the outermost surface; A display device including
2. In paragraph 1, The above refractive layer It comprises at least one low-refractive layer containing a low-refractive material, and A display device wherein the low-refractive layer comprises the anti-fingerprint material, and at least a portion of the anti-fingerprint material is floated on the outermost surface of the low-refractive layer.
3. In paragraph 1, The above refractive layer It comprises at least one high-refractive index layer comprising a high-refractive index material and at least one low-refractive index layer located on the high-refractive index layer and comprising a low-refractive index material, A display device wherein the low-refractive layer comprises the anti-fingerprint material, and at least a portion of the anti-fingerprint material is floated on the outermost surface of the low-refractive layer.
4. In paragraph 1, The above anti-fingerprint material is It comprises at least one fluorinated material selected from the group comprising polytetrafluoroethylene (PTFE), fluorinated ethylene propylene (FEP), perfluoropolyether (PFPE), and fluorinated silane, or A display device comprising at least one silicon-based material selected from the group comprising silica nanoparticles (SiO₂), hexamethyldisiloxane (HMDSO), tetraethyl orthosilicate (TEOS), polydimethylsiloxane (PDMS), and phenylmethylsilicone.
5. In paragraph 1, A display device in which the density of the above-mentioned anti-fingerprint material is higher in the portion of the refractive layer farther from the base film than in the portion of the refractive layer closer to the base film.
6. In paragraph 1, A display device having a surface contact angle of 100 degrees or more to 120 degrees or less, wherein the above refractive layer is a display device.
7. In paragraph 1, The above-mentioned display panel and the above-mentioned cover window further include an adhesive layer between them, A display device in which the adhesive layer comprises a pressure-sensitive adhesive (PSA) which is a semi-fluid material.
8. In Paragraph 7, At least one of the base film, the hard coating layer, and the adhesive layer further comprises a UV blocking material, and The above-mentioned UV blocking material transmits 10% or less of ultraviolet rays having a wavelength of 380 nm or less, and is a display device.
9. In paragraph 8, A display device in which the above-mentioned UV blocking material is uniformly distributed within at least one of the base film, the hard coating layer, and the adhesive layer.
10. In paragraph 1, The above hard coating agent comprises at least one material selected from the group consisting of siloxane resin, epoxy resin, and acrylic resin, and A display device having a hard coating layer thickness in the range of 1 micrometer or more and 20 micrometers or less.
11. In paragraph 2 or 3, The above low-refractive index material comprises at least one material selected from the group including amino-based low-refractive index materials, silane-based low-refractive index materials, and acrylate-based low-refractive index materials, and A display device in which the thickness of the low-refractive index layer is in the range of 10 nanometers or more to 250 nanometers or less.
12. In paragraph 3, The above high-refractive index material comprises at least one high-refractive index inorganic material selected from the group comprising titanium dioxide, zirconium oxide, silicon carbide, zinc sulfide, and titanium carbide, or comprises at least one high-refractive index organic material among polyimide and polythiophene, A display device having a thickness of the high refractive index layer in the range of 10 nanometers or more to 250 nanometers or less.
13. In paragraph 1, The above display panel is A substrate divided into a display area and a peripheral area; An organic light-emitting diode disposed in a display area on the substrate; and Encapsulation layer for sealing the above organic light-emitting diode; Includes, Between the above display panel and the above cover window A touch layer located on the above-mentioned encapsulation layer; and A color filter layer located on the above touch layer; A display device further comprising
14. In a display device comprising at least one folding region, A display panel that displays a screen; and A cover window disposed on the above-mentioned display panel; Includes, The above cover window includes a base film and a functional layer, and The above functional layer A hard coating layer located on the above base film and comprising a hard coating agent; A primer layer located on the hard coating layer and comprising a primer material; and An anti-fingerprint layer located on the above primer layer and comprising an anti-fingerprint material; Includes, The above primer layer has a thickness in the range of 5 nanometers or more to 30 nanometers or less, and A display device comprising at least one material selected from the group including silane-based materials, acrylate-based materials, and epoxy-based materials, wherein the primer material comprises the above-mentioned primer material.
15. In Paragraph 14, Between the hard coating layer and the primer layer, A display device comprising a low-refractive index material and further comprising a low-refractive index layer having a thickness in the range of 10 nanometers or more to 250 nanometers or less.
16. In paragraph 15, Between the hard coating layer and the low-refractive index layer, A display device comprising a high refractive index material and further comprising a high refractive index layer having a thickness in the range of 10 nanometers or more to 250 nanometers or less.
17. In Paragraph 14, The above anti-fingerprint layer has a thickness in the range of 5 nanometers or more to 30 nanometers or less, and A display device comprising at least one material selected from the group including fluorine-based materials and silicon-based materials, wherein the above-mentioned anti-fingerprint material comprises the above-mentioned anti-fingerprint material.
18. Controller that generates a scan input signal; Power module that generates scan input voltage; A display panel comprising a substrate divided into a display area where a pixel circuit is disposed and a peripheral area around the display area, a scan driver disposed in the peripheral area that receives the scan input signal and the scan input voltage and outputs the scan signal to the pixel circuit, and at least an encapsulation layer that seals the display area; A touch layer located on the above-mentioned encapsulation layer; A color filter layer located on the touch layer; and A cover window located on the color filter layer above; Includes, The above cover window is Base film; and A functional layer positioned on the base film, having a thickness in the range of 2 micrometers or more and 21 micrometers or less, comprising an anti-fingerprint material, wherein at least a portion of the anti-fingerprint material is floated on the outermost surface; Includes, An electronic device comprising at least one material selected from the group including fluorine-based materials and silicon-based materials, wherein the above-mentioned anti-fingerprint material comprises the above-mentioned anti-fingerprint material.
19. In Paragraph 18, The above functional layer A hard coating layer positioned on the above base film, comprising a hard coating agent and having a thickness in the range of 1 micrometer or more to 20 micrometers or less, An electronic device wherein the hard coating layer comprises the anti-fingerprint material, and at least a portion of the anti-fingerprint material is floated on the outermost surface of the hard coating layer.
20. In Paragraph 18, The above functional layer A hard coating layer positioned on the base film, comprising a hard coating agent, and having a thickness in the range of 1 micrometer or more to 20 micrometers or less; and At least one low-refractive index layer located on the hard coating layer, having a thickness thinner than the hard coating layer, and comprising a low-refractive index material; An electronic device wherein the low-refractive layer comprises the anti-fingerprint material, and at least a portion of the anti-fingerprint material is floated on the outermost surface of the low-refractive layer.

Description

Display device and electronic device including the same Embodiments of the present invention relate to a display device. Generally, unlike conventional flat display devices, foldable display devices that can be physically bent, curved, or folded can be deformed into various shapes by using flexible materials. FIG. 1 is a perspective view of a display device according to one embodiment of the present invention. Figure 2 is a drawing showing the folded state of the display device illustrated in Figure 1. FIG. 3 is a perspective view of a display device according to another embodiment of the present invention. Figure 4 is a drawing showing the folded state of the display device illustrated in Figure 3. Figure 5 shows a cross-sectional view of the display device of Figure 1 cut along the line I-I'. Figure 6 is an enlarged view of part II of Figure 5. FIG. 7 illustrates a cover window according to an embodiment of the present invention, enlarged portion III of FIG. 5. FIG. 8 illustrates a cover window according to another embodiment of the present invention. FIG. 9 illustrates a cover window according to another embodiment of the present invention. Figure 10 is an experimental result comparing the wear resistance of a display device according to one embodiment of the present invention and comparative examples. FIG. 11 illustrates a cover window according to another embodiment of the present invention, enlarged portion III of FIG. 5. FIG. 12 illustrates a cover window according to another embodiment of the present invention. FIG. 13 illustrates a cover window according to another embodiment of the present invention. FIG. 14 is a block diagram of an electronic device according to embodiments 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. 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 unit, area, 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 unit, area, or component is interposed in between. In the following embodiments, terms such as "connect" or "combine" do not necessarily imply a direct and/or fixed connection or combination of two members unless the context clearly indicates otherwise, nor do they exclude the interposition of another member between the two members. In the drawings, the size of components may be exaggerated or reduced for convenience of explanation. For example, the size and/or thickness of each component shown in the drawings are arbitrarily depicted for convenience of explanation, and therefore the present invention is not necessarily limited to what is illustrated. In the following embodiments, when various components such as layers, films, regions, and plates are described as being "on" another component, this includes not only cases where they are "directly on" another component, but also cases where other components are interposed between them. Furthermore, for convenience of explanation, the size of components in the drawings may be exaggerated or reduced. 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 following embodiments, the x-axis, y-axis, and z-axis are not limited to three axes in an orthogonal coordinate system and can be interpreted in a broader sense that includes them. For example, the x-axis, y-axis, and z-axis may be orthogonal to each other, but they may also refer to different directions that are not orthogonal to each other. Hereinafter, preferred 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. FIG. 1 is a perspective view of a display device (10) a