KR-20260065154-A - DISPLAY APPARATUS

Abstract

A display device according to one embodiment of the present specification comprises a substrate including a first light-emitting region, a second light-emitting region, and a third light-emitting region that emit light of different colors, a light-emitting element disposed on the substrate, an encapsulation layer disposed on the light-emitting element, and a light-controlling member disposed on the encapsulation layer between the first light-emitting region, the second light-emitting region, and the third light-emitting region, wherein the light-controlling member comprises a first light-controlling layer disposed on the encapsulation layer, a first insulating film disposed on the first light-controlling layer, and a second light-controlling layer disposed on the first insulating film.

Inventors

• 강연숙
• 강기석

Assignees

• 엘지디스플레이 주식회사

Dates

Publication Date

20260508

Application Date

20241101

Claims (20)

1. A substrate comprising a first light-emitting region, a second light-emitting region, and a third light-emitting region that emit light of different colors; A light-emitting element disposed on the above substrate; An encapsulation layer disposed on the light-emitting element; and A light control member disposed on the encapsulation layer between the first light-emitting region, the second light-emitting region, and the third light-emitting region, and The above light control member is, A first light control layer disposed on the above-mentioned encapsulation layer, A first insulating film disposed on the first light control layer, and A display device comprising a second light control layer disposed on the first insulating film.
2. In Article 1, A display device in which the first light control layer and the second light control layer are made of TiN.
3. In Article 2, A display device in which the thickness of the first light control layer is within the range of 90 nm to 120 nm.
4. In Paragraph 3, A display device in which the light reflectance in the thickness direction of the first light control layer is 30% or less.
5. In Article 1, The above second light control layer is a display device comprising a plurality of patterns that are sequentially arranged along a first direction and separated from each other by patterning.
6. In Article 5, A display device in which the width of the first direction of the patterns disposed at both ends of the first direction among the plurality of patterns is within the range of 30 nm to 70 nm or within the range of 150 nm to 300 nm.
7. In Article 6, A display device having a light reflectance of the patterns disposed at both ends of the first direction with respect to the first direction of 35% or more.
8. In Article 5, The second light control layer is a display device that overlaps the first light control layer in the thickness direction.
9. In Article 1, The above light control member is a display device further comprising a second insulating film disposed on the second light control layer and a third light control layer disposed on the second insulating film.
10. In Article 9, The above third light control layer is, It includes a plurality of patterns that are sequentially arranged along a first direction and separated from each other by patterning, A display device in which the width of the first direction of the patterns disposed at both ends of the first direction among the plurality of patterns is within the range of 30 nm to 70 nm or within the range of 150 nm to 300 nm.
11. In Article 10, The above light control member is a display device further comprising a third insulating film disposed on the third light control layer.
12. In Article 11, It further includes an empty space defined by the third insulating film, and The above empty space is a display device placed between the above plurality of patterns.
13. In Article 9, It further includes an empty space defined by the second insulating film above, and The second light control layer includes a plurality of patterns that are sequentially arranged along a first direction and separated from each other by patterning. The above empty space is a display device placed between the above plurality of patterns.
14. In Article 1, It further includes a color filter layer disposed on the above-mentioned packaging layer, The above color filter layer is a display device covering the light control member.
15. In Article 14, The above color filter layer includes a plurality of color filters that transmit light of different colors, and The light control member is a display device positioned between the plurality of color filters.
16. A substrate comprising a light-emitting region that emits light of a different color and a non-light-emitting region disposed around the light-emitting region; A light-emitting element disposed on the above substrate; A sealing layer disposed on the above-mentioned light-emitting element; In the above non-luminous region, a first light control layer disposed on the encapsulation layer; and It includes a color filter layer disposed on the above-mentioned encapsulation layer and covering the first light control layer, and The above first light control layer is a display device made of TiN.
17. In Article 16, A display device in which the thickness of the first light control layer is within the range of 90 nm to 120 nm.
18. In Article 17, A display device in which the light reflectance in the thickness direction of the first light control layer is 30% or less.
19. In Article 16, It further includes a first insulating film disposed on the first optical control layer and a second optical control layer disposed on the first insulating film. A display device comprising a plurality of patterns that are sequentially arranged along a first direction and separated from each other by the second light control layer.
20. In Article 19, The above second light control layer is made of TiN, and A display device in which the width of the first direction of the patterns disposed at both ends of the first direction among the plurality of patterns is within the range of 30 nm to 70 nm or within the range of 150 nm to 300 nm.

Description

Display apparatus This specification relates to a display device. As the information society develops, there is an increasing demand for display devices that display images, and various types of display devices, such as Liquid Crystal Display Apparatuses and Organic Light Emitting Diode Display Apparatuses, are being utilized. Among display devices, organic light-emitting displays (OLEDs) are self-emissive and offer superior viewing angles and contrast ratios compared to liquid crystal displays (LCDs). Furthermore, they do not require a separate backlight, enabling lightweight and thin designs, and offer the advantage of lower power consumption. Additionally, OLEDs are capable of low-voltage operation, feature fast response speeds, and offer low manufacturing costs. Recently, there has been an increasing demand for displays requiring Augmented Reality (AR), Virtual Reality (VR), or equivalent ultra-high resolution using such organic light-emitting displays. FIG. 1 is a plan view of a display device according to one embodiment. Figure 2 is an enlarged view of the area around the subpixel of Figure 2. Figure 3 is a cross-sectional view taken along the line AA' of Figure 2. Figure 4 is a cross-sectional view taken along the BB' line of Figure 2. Figure 5 is a cross-sectional view taken along the CC' line of Figure 2. Figure 6 is an enlarged view of the Q1 region of Figure 3. Figure 7 is a schematic diagram briefly showing the path of light around a light control member. FIG. 8 is a plan view of the area around a subpixel according to another embodiment. FIG. 9 is a cross-sectional view around a light control member according to another embodiment. FIG. 10 is a cross-sectional view around a light control member according to another embodiment. FIG. 11 is a cross-sectional view around a light control member according to another embodiment. Hereinafter, embodiments are described with reference to the drawings. In this specification, where a component (or region, layer, part, etc.) is described as being "on," "connected," or "joined" to another component, it means that it may be directly connected/joined to the other component or that a third component may be placed between them. Identical reference numerals denote identical components. Additionally, in the drawings, the thicknesses, proportions, and dimensions of the components are exaggerated for the effective illustration of the technical content. "And/or" includes all of one or more combinations that the associated components may define. Terms such as "first," "second," etc., may be used to describe various components, but said components are not limited by said terms. These terms are used solely for the purpose of distinguishing one component from another. For example, without departing from the scope of the embodiments, the first component may be named the second component, and similarly, the second component may be named the first component. A singular expression includes a plural expression unless the context clearly indicates otherwise. Terms such as "below," "lower side," "above," and "upper side" are used to describe the relationships between the components depicted in the drawings. These terms are relative concepts and are described based on the directions indicated in the drawings. Terms such as "include" or "have" are intended to indicate the existence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and should be understood as not precluding the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof. FIG. 1 is a plan view of a display device according to one embodiment. Referring to FIG. 1, the display device (1) may include a display area (DA) and a non-display area (NDA). The display area (DA) may be an area where light is emitted to the outside so that a screen can be displayed. The non-display area (NDA) may be an area where light is not emitted to the outside so that a screen is not displayed. A non-display area (NDA) may be located around a display area (DA). The non-display area (NDA) may surround the display area (DA), but the embodiments of this specification are not limited thereto. A bezel area of the display device (1) may be defined by the non-display area (NDA), but the embodiments of this specification are not limited thereto. The display device (1) may include a plurality of subpixels (21, 22, 23). The plurality of subpixels (21, 22, 23) may be arranged within a display area (DA). A plurality of subpixels (21, 22, 23) may be formed on the substrate (2). A plurality of subpixels (21, 22, 23) may form a single pixel. A plurality of pixels may be formed on the substrate (2). A plurality of subpixels (21, 22, 23) are formed by including a first subpixel (21), a second subpixel (22), and a third subpixel (23). By arranging the first subpixel (21), the second subpixel (22), and the third subpixel (23) in ord