Display device

Abstract

A display device is provided. The display device includes: a display panel including a light emitting area and a non-light emitting area adjacent to the light emitting area; a color conversion layer on the display panel; a light blocking layer on the display panel, and a main opening portion corresponds to the light emitting area, a sub-opening portion corresponds to the non-light emitting area, and the main opening portion and the sub-opening portion are defined at the light blocking layer; and a color filter layer on the color conversion layer, wherein the color filter layer includes: a main filter portion corresponding to the main opening portion; a sub-filter portion corresponding to the sub-opening portion; and a light blocking filter portion corresponding to the non-light emitting area and not overlapping the sub-opening portion.

Description

[0001] This application claims priority to and the benefit of Korean Patent Application No. 10-2018-0172130, filed on Dec. 28, 2018, which is hereby incorporated by reference herein in its entirety. Technical Field

[0002] Embodiments of the present disclosure herein relate to a display device, and, for example, to a display device including a color filter layer and a color conversion layer. Background Art

[0003] Various display devices are being developed for multimedia devices such as televisions, mobile phones, tablet computers, navigation systems, and game consoles. When such display devices are used, when external light is provided to the display devices, the provided external light is reflected from electrodes in a display panel or from interfaces between stacked layers in the display devices, thereby deteriorating or reducing display quality.

[0004] Therefore, there has been a need for research into preventing or reducing degradation of display quality due to light provided from the outside. Summary of the invention

[0005] Embodiments of the present disclosure provide a display device having improved display quality by adjusting a color sense of reflected light generated due to reflection caused by external light.

[0006] An embodiment of the present disclosure also provides a display device capable of displaying a neutral reflective color by improving a yellowish color sense.

[0007] An embodiment of the present disclosure provides a display device, which includes: a display panel, including a light-emitting area and a non-light-emitting area adjacent to the light-emitting area; a color conversion layer, on the display panel; a light blocking layer, on the display panel, and having a main opening portion corresponding to the light-emitting area and a sub-opening portion corresponding to the non-light-emitting area, the main opening portion and the sub-opening portion being defined at the light blocking layer; and a color filter layer, on the color conversion layer, wherein the color filter layer includes a main filter portion, a sub-filter portion and a light blocking filter portion, the main filter portion corresponds to the main opening portion, the sub-filter portion corresponds to the sub-opening portion, and the light blocking filter portion corresponds to the non-light-emitting area and is not overlapped with the sub-opening portion.

[0008] In an embodiment, the display panel may include an organic electroluminescent device configured to emit a first color light.

[0009] In an embodiment, the color conversion layer may include a first color conversion portion, a second color conversion portion, and a third color conversion portion, the first color conversion portion including first quantum dots configured to convert first color light into second color light, the second color conversion portion including second quantum dots configured to convert first color light into third color light, and the third color conversion portion configured to transmit the first color light.

[0010] In an embodiment, the color filter layer includes a first filter, a second filter and a third filter, the first filter is configured to transmit a second color light, the second filter is configured to transmit a third color light, and the third filter is configured to transmit the first color light, wherein each of the first filter, the second filter and the third filter may include a main filter portion and a light blocking filter portion, and at least one of the first filter, the second filter and the third filter may also include a sub-filter portion.

[0011] In an embodiment, the first color light may be blue light, the second color light may be red light, and the third color light may be green light, and the first filter and the third filter may include a sub-filter portion, but the second filter may not include the sub-filter portion.

[0012] In an embodiment, the third color conversion portion and the third filter may be integrally provided (eg, formed integrally with each other).

[0013] In an embodiment, the first color conversion portion and the third color conversion portion may further include a scattering agent.

[0014] In an embodiment, the color filter layer may include a third filter and a fourth filter, the third filter overlapping the third color conversion portion and configured to transmit the first color light, and the fourth filter overlapping the first color conversion portion and the second color conversion portion and configured to transmit the fourth color light.

[0015] In an embodiment, a light blocking layer may be between the display panel and the color filter layer.

[0016] In embodiments, a light blocking layer may be on the color conversion layer, and a color filter layer may cover the light blocking layer.

[0017] In an embodiment, the color filter layer may be directly on the color conversion layer.

[0018] In an embodiment of the present disclosure, a display device including a light-emitting area, a reflective area separated from the light-emitting area on a plane, and a light-blocking area surrounding the light-emitting area and the reflective area also includes: a display panel including an organic electroluminescent device; a color conversion layer on the display panel and including a plurality of color conversion portions positioned to correspond to the light-emitting area; a color filter layer on the color conversion layer and including a plurality of filters; and a light-blocking layer on the display panel and including a light-blocking portion overlapping the light-emitting area but not overlapping the light-emitting area and the reflective area.

[0019] In an embodiment, the light emitting area may include a red light emitting area, a green light emitting area, and a blue light emitting area, and the reflective area may include a red reflective area and a blue reflective area.

[0020] In an embodiment, the light-emitting area may include a plurality of red light-emitting areas, a plurality of green light-emitting areas, and a plurality of blue light-emitting areas, wherein the plurality of red light-emitting areas, the plurality of green light-emitting areas, and the plurality of blue light-emitting areas may be alternately arranged in a first direction, and each of the plurality of red light-emitting areas, the plurality of green light-emitting areas, and the plurality of blue light-emitting areas may be arranged in a second direction intersecting the first direction.

[0021] In an embodiment, the reflective region may include a red reflective region located between the plurality of red light emitting regions arranged in the second direction, and a blue reflective region located between the plurality of blue light emitting regions arranged in the second direction.

[0022] In an embodiment, the organic electroluminescent device may be configured to emit blue light, and the plurality of color conversion portions may include a first color conversion portion, a second color conversion portion, and a third color conversion portion, the first color conversion portion being positioned to correspond to a red light emitting region and including red quantum dots, the second color conversion portion being positioned to correspond to a green light emitting region and including green quantum dots, and the third color conversion portion being positioned to correspond to a blue light emitting region.

[0023] In an embodiment, the color filter may include a red filter, a green filter, and a blue filter, the red filter overlapping the red light emitting area and the red reflective area, the green filter overlapping the green light emitting area, and the blue filter overlapping the blue light emitting area and the blue reflective area.

[0024] In an embodiment, on a plane, an area of ​​the red light emitting region may be larger than an area of ​​the green light emitting region and an area of ​​the blue light emitting region.

[0025] In an embodiment, a ratio of an area of ​​the reflective region to a total area of ​​the light emitting region, the reflective region and the light blocking region may be greater than 0% and less than or equal to 10%.

[0026] In an embodiment of the present disclosure, a display device includes: a display panel including an organic electroluminescent device; a color conversion layer, which is on the display panel and includes a plurality of color conversion parts spaced apart from each other on a plane; a light blocking layer, which is on the display panel and has a main opening part overlapping the color conversion part and a sub-opening part not overlapping the color conversion part; and a color filter layer, which is on the color conversion layer and includes a plurality of filters, wherein each of the plurality of filters includes a main filter part and a light blocking filter part, the main filter part overlapping the main opening part, the light blocking filter part being adjacent to the main filter part, and at least one of the plurality of filters further includes a sub-filter part, the sub-filter part being adjacent to the light blocking filter part and spaced apart from the main filter part. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings are included to provide a further understanding of the subject matter of the present disclosure and are incorporated into and constitute a part of this specification. The accompanying drawings illustrate exemplary embodiments of the present disclosure and together with the description serve to explain the principles of the present disclosure. In the drawings:

[0028] Figure 1 is a perspective view of an electronic device according to an embodiment of the present disclosure;

[0029] Figure 2 is a plan view of a display device according to an embodiment of the present disclosure;

[0030] Figure 3 is with Figure 2 A cross-sectional view corresponding to the line II';

[0031] Figure 4 is with Figure 2 A cross-sectional view of a display device according to an embodiment of the present disclosure corresponding to line II-II';

[0032] Figure 5 is a plan view showing a portion of a display device according to an embodiment of the present disclosure;

[0033] Figure 6 is with Figure 2 A cross-sectional view of a display device according to an embodiment of the present disclosure corresponding to line III-III';

[0034] Figure 7 is a graph showing reflectivity depending on wavelength in a display device according to an embodiment of the present disclosure;

[0035] Figure 8 is a cross-sectional view showing a display device according to an embodiment of the present disclosure;

[0036] Fig. 9is a plan view showing a portion of a display device according to an embodiment of the present disclosure;

[0037] Fig.10 is a cross-sectional view showing a portion of a display device according to an embodiment of the present disclosure;

[0038] Fig.11 is a cross-sectional view showing a display device according to an embodiment of the present disclosure;

[0039] Fig.12 is a cross-sectional view showing a portion of a display device according to an embodiment of the present disclosure;

[0040] Fig.13 is a cross-sectional view showing a portion of a display device according to an embodiment of the present disclosure;

[0041] Fig.14 is a cross-sectional view showing a portion of a display device according to an embodiment of the present disclosure;

[0042] Fig.15 is a cross-sectional view showing a display device according to an embodiment of the present disclosure;

[0043] Fig.16 is a cross-sectional view showing a display device according to an embodiment of the present disclosure;

[0044] Fig.17 is a plan view of a display device according to an embodiment of the present disclosure;

[0045] Fig.18 is a plan view of a display device according to an embodiment of the present disclosure; and

[0046] Fig.19 is a cross-sectional view showing a display device according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0047] The subject matter of the present disclosure may be modified in various alternative forms, therefore, example embodiments will be illustrated in the drawings and described in more detail. However, it should be understood that it is not intended to limit the present disclosure to the specific forms disclosed, but on the contrary, it is intended to cover all modifications, equivalents and substitutes falling within the spirit and scope of the present disclosure.

[0048] In the present disclosure, when an element (or region, layer, portion, etc.) is referred to as being "on," "connected to," or "coupled to" another element, it means that the element may be directly on / connected to / coupled to the other element, or a third element may be between them. In addition, it will be understood that when an element or layer is referred to as being "between" two elements or layers, the element or layer may be the only element or layer between the two elements or layers, or one or more intervening elements or layers may also be present.

[0049] Meanwhile, in the present specification, “directly on” means that there is no layer, film, region, plate, etc. added between a portion and other portions of the layer, film, region, plate, etc. For example, “directly on” may mean that a layer is on another layer or a member is on another member without an additional member such as an adhesive member between two layers or two members.

[0050] The same reference numerals indicate the same elements. In addition, in the drawings, the thickness, ratio and size of elements may be exaggerated for clarity of description of technical contents.

[0051] The term "and / or" includes all combinations that can be defined by one or more associated constructions.

[0052] It will be understood that although the terms "first", "second", etc. can be used to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element. For example, without departing from the scope of the exemplary embodiments of the present disclosure, the first element can be named as the second element, and similarly, the second element can be named as the first element. Unless the context clearly indicates otherwise, the singular term can include the plural form.

[0053] In addition, terms such as "below", "lower", "above", "upper", etc. are used to describe the relationship of the configurations shown in the drawings. The terms are used as relative concepts and are described with reference to the directions indicated in the drawings.

[0054] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by those of ordinary skill in the art to which the present disclosure belongs. It will also be understood that terms defined in common dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant art, and should not be interpreted in an idealized or overly formal sense, unless explicitly defined as such herein.

[0055] It should be understood that the terms “including” or “having” are intended to illustrate the presence of the features, integers, actions, operations, elements, components, or combinations thereof stated in the disclosure, but do not preclude the presence or addition of one or more other features, integers, actions, operations, elements, components, or combinations thereof.

[0056] Hereinafter, a display device according to an embodiment of the present disclosure will be described with reference to the accompanying drawings.

[0057] Figure 1 is a perspective view showing an embodiment of an electronic device ED. In an embodiment, the electronic device ED may be a large electronic device such as a television, a monitor, or an external advertising board, but the present disclosure is not limited thereto. In addition, the electronic device ED may be a small or medium-sized electronic device such as a personal computer, a notebook computer, a personal digital terminal, a vehicle navigation system unit, a game console, a smart phone, a tablet computer, or a camera, but the present disclosure is not limited thereto. It should be understood that these are merely exemplary embodiments, and the electronic device ED may be implemented as other electronic devices without departing from the spirit and scope of the present disclosure.

[0058] The electronic device ED may include a display device DS and a housing HAU. The display device DS may display an image IM through a display surface IS. Figure 1 , the display surface IS is shown to be parallel (e.g., substantially parallel) to a surface defined by the first direction axis DR1 and the second direction axis DR2, and the second direction axis DR2 intersects the first direction axis DR1. However, this is merely exemplary. In another embodiment of the present disclosure, the display surface IS of the display device DS may have a curved shape.

[0059] The normal direction of the display surface IS (for example, the direction of the thickness direction of the display device DS on which the image IM is displayed) is indicated by the third directional axis DR3. In addition, the direction opposite to the third directional axis DR3 in the thickness direction of the display device DS is indicated by the fourth directional axis DR4. The front surface (or upper surface) and the rear surface (or lower surface) of each component can be defined by the third directional axis DR3. The present disclosure is not limited to the foregoing, however, since the directions indicated by the first directional axis DR1, the second directional axis DR2, the third directional axis DR3, and the fourth directional axis DR4 are relative concepts, they can be converted into other directions.

[0060] The housing HAU may accommodate the display device DS and cover the display device DS so that the upper surface of the display device DS as the display surface IS is exposed. The housing HAU covers the side surface and the bottom surface of the display device DS and may expose the entire (e.g., substantially the entire) upper surface of the display device DS. However, embodiments of the present disclosure are not limited thereto. The housing HAU may cover not only the side surface and the bottom surface of the display device DS but also a portion of the upper surface of the display device DS.

[0061] Figure 2 is a plan view showing a display device DS according to an embodiment of the present disclosure. Figure 3 is with Figure 2 The cross-sectional view corresponding to the line I-I', and Figure 4 is with Figure 2 The cross-sectional view corresponding to the line II-II'. Figure 5 is a plan view showing a portion of a display device DS according to an embodiment of the present disclosure, and Figure 6 is a cross-sectional view showing a portion of the display device DS according to an embodiment of the present disclosure.

[0062] Reference Figure 2 The display device DS of the embodiment may include a display area DA and a non-display area NDA adjacent to the display area DA. The display area DA displays an image IM (see Figure 1 ) part.

[0063] In an embodiment, the display area DA may have a quadrilateral shape. The non-display area NDA may surround the display area DA. However, the embodiments of the present disclosure are not limited thereto. The shape of the display area DA and the shape of the non-display area NDA may be designed in correlation (e.g., may be designed in consideration of each other). In addition, the non-display area NDA may not exist on the front surface of the display device DS as the display surface IS.

[0064] In an embodiment, the display device DS may include a display panel DP, a color conversion layer CCL on the display panel DP, a light blocking layer BML on the display panel DP, and a color filter layer CFL on the color conversion layer CCL. In an embodiment, the display panel DP may include an organic electroluminescent device OEL. For example, the display panel DP may be an organic electroluminescent display panel.

[0065] Reference Figure 2 , the display device DS of the embodiment may include a light emitting area PXA and a non-light emitting area NPXA. The non-light emitting area NPXA may be adjacent to the light emitting area PXA. In some embodiments, the light emitting area PXA and the non-light emitting area NPXA of the display device DS may correspond to the light emitting area PXA and the non-light emitting area NPXA of the display panel DP, respectively.

[0066] The light emitting region PXA may include a first light emitting region PXA-R, a second light emitting region PXA-G, and a third light emitting region PXA-B. The first light emitting region PXA-R, the second light emitting region PXA-G, and the third light emitting region PXA-B may be spaced apart from each other on a plane. In the display device DS of the embodiment, the first light emitting region PXA-R, the second light emitting region PXA-G, and the third light emitting region PXA-B may be repeatedly arranged in the direction of the first direction axis DR1 in the order of the first light emitting region PXA-R, the second light emitting region PXA-G, and the third light emitting region PXA-B.

[0067] In some embodiments, a plurality of first light-emitting regions PXA-R may be arranged and positioned in the direction of a second direction axis DR2 intersecting the first direction axis DR1, a plurality of second light-emitting regions PXA-G may be arranged and positioned in the direction of the second direction axis DR2, and a plurality of third light-emitting regions PXA-B may be arranged and positioned in the direction of the second direction axis DR2.

[0068] For example, in the display device DS of the embodiment, the first light-emitting area PXA-R may be a red light-emitting area configured to provide red light, the second light-emitting area PXA-G may be a green light-emitting area configured to provide green light, and the third light-emitting area PXA-B may be a blue light-emitting area configured to provide blue light.

[0069] For example, refer to Figure 2 , each of the plurality of red light emitting regions, the plurality of green light emitting regions, and the plurality of blue light emitting regions may be arranged along the second direction axis DR2. In addition, the red light emitting regions, the green light emitting regions, and the blue light emitting regions may be alternately positioned along the first direction axis DR1. For example, the red light emitting regions, the green light emitting regions, and the blue light emitting regions may be repeatedly positioned along the first direction axis DR1 in the order of the red light emitting regions, the green light emitting regions, and the blue light emitting regions. However, the embodiments of the present disclosure are not limited thereto. The order and arrangement direction of the light emitting regions providing different lights may be changed in various suitable ways.

[0070] In an embodiment, the non-light emitting area NPXA may include a reflective area RA and a light blocking area BA. The reflective area RA may be a portion from which light provided from the outside of the display device DS and then reflected inside the display device DS is emitted. The light blocking area BA may surround the light emitting area PXA and the reflective area RA. The light blocking area BA may be a portion corresponding to a light blocking portion BM to be described below.

[0071] The reflective area RA may include at least one of a first reflective area RA-R and a second reflective area RA-B, wherein the first reflective area RA-R is adjacent to the first light-emitting area PXA-R and provides light of a wavelength area similar to the wavelength area of ​​the light provided from the first light-emitting area PXA-R, and the second reflective area RA-B is adjacent to the third light-emitting area PXA-B and provides light of a wavelength area similar to the wavelength area of ​​the light provided from the third light-emitting area PXA-B.

[0072] For example, the reflective area RA may include a red reflective area as a first reflective area RA-R and a blue reflective area as a second reflective area RA-B.

[0073] The first reflective region RA-R may be disposed between the first light emitting regions PXA-R, which are arranged spaced apart from each other in the second direction axis DR2. In addition, the second reflective region RA-B may be disposed between the third light emitting regions PXA-B, which are arranged spaced apart from each other in the second direction axis DR2.

[0074] For example, refer to Figure 2 The light emitting areas PXA-R, PXA-G and PXA-B, the reflective areas RA-R and RA-B and the light blocking area BA may be repeatedly positioned along the second direction axis DR2 in the display device DS of the embodiment.

[0075] exist Figure 2 , the first light emitting regions PXA-R and the first reflective regions RA-R are shown to be arranged alternately one by one in the direction of the second direction axis DR2. However, the embodiments of the present disclosure are not limited thereto. The arrangement intervals of the first reflective regions RA-R may be adjusted in consideration of the reflective color sense required by the display device DS. For example, Figure 2 Compared with the arrangement interval shown in , the arrangement interval of the first reflective regions RA-R may be more separated. In some embodiments, two first light emitting regions PXA-R and one first reflective region RA-R may be arranged in this order. However, the embodiments of the present disclosure are not limited thereto.

[0076] In addition, the same contents as the description of the arrangement relationship of the first light emitting region PXA-R and the first reflective region RA-R may be applied to the third light emitting region PXA-B and the second reflective region RA-B.

[0077] In an embodiment, the display panel DP may include a base layer BL, a circuit layer DP-CL disposed on the base layer BL, and a display element layer DP-OEL. In an embodiment, the base layer BL, the circuit layer DP-CL, and the display element layer DP-OEL may be sequentially stacked in the third direction axis DR3 direction.

[0078] The base layer BL may be a member that provides a base surface on which the display element layer DP-OEL is positioned. The base layer BL may be a glass substrate, a metal substrate, a plastic substrate, etc. However, the embodiments of the present disclosure are not limited thereto, and the base layer BL may be an inorganic layer, an organic layer, and / or a composite material layer.

[0079] In an embodiment, the circuit layer DP-CL is on the base layer BL, and the circuit layer DP-CL may include a plurality of transistors. Each of the plurality of transistors may include a control electrode, an input electrode, and an output electrode. For example, the circuit layer DP-CL may include a switching transistor and a driving transistor configured to drive the organic electroluminescent device OEL.

[0080] The display element layer DP-OEL may include an organic electroluminescent device OEL and an encapsulation layer TFE. The organic electroluminescent device OEL may include a first electrode EL1, a hole transport region HTR on the first electrode EL1, an emission layer EML on the hole transport region HTR, an electron transport region ETR on the emission layer EML, and a second electrode EL2 on the electron transport region ETR.

[0081] The encapsulation layer TFE may be on the organic electroluminescent device OEL. The encapsulation layer TFE may cover the organic electroluminescent device OEL. The organic electroluminescent device OEL may be sealed by the encapsulation layer TFE.

[0082] The first electrode EL1 constituting the organic electroluminescent device OEL has conductivity (eg, electrical conductivity). The first electrode EL1 may be formed of a metal alloy and / or a conductive compound. The first electrode EL1 may be an anode. The first electrode EL1 may be a pixel electrode.

[0083] In the organic electroluminescent device OEL according to the embodiment, the first electrode EL1 may be a reflective electrode. However, the embodiments of the present disclosure are not limited thereto. For example, the first electrode EL1 may be a transmissive electrode or a transflective electrode, etc. When the first electrode EL1 is a transmissive electrode or a transflective electrode, the first electrode EL1 may include Ag, Mg, Cu, Al, Pt, Pd, Au, Ni, Nd, Ir, Cr, Li, Ca, LiF / Ca, LiF / Al, Mo, Ti, or a compound or mixture thereof (e.g., a mixture of Ag and Mg). In some embodiments, the first electrode EL1 may be a multilayer structure including a reflective film or a transflective film and a transparent conductive film, the reflective film and the transflective film are both formed of the materials exemplified above, and the transparent conductive film is formed of indium tin oxide (ITO), indium zinc oxide (IZO), zinc oxide (ZnO), indium tin zinc oxide (ITZO), etc. For example, the first electrode EL1 may be a multilayer metal film or may have a structure in which a metal and a metal oxide film of ITO / Ag / ITO are stacked.

[0084] The hole transport region HTR may have a single-layer structure or a multi-layer structure, the single-layer structure having a single layer formed of a single material, the single-layer structure having a single layer formed of a plurality of different materials, and the multi-layer structure having a plurality of layers formed of a plurality of different materials. For example, the hole transport region HTR may have a single-layer structure having a single layer formed of a plurality of different materials, or a structure having a hole injection layer / hole transport layer, a hole injection layer / hole transport layer / buffer layer, a hole injection layer / buffer layer, a hole transport layer / buffer layer, or a hole injection layer / hole transport layer / electron blocking layer sequentially stacked on the first electrode EL1, but the embodiments of the present disclosure are not limited thereto.

[0085] For example, the hole transport region HTR may include a hole injection layer and a hole transport layer, and in the hole injection layer and the hole transport layer, any suitable hole injection material and any suitable hole transport material available in the art may be used, respectively.

[0086] In some embodiments, the hole transport region HTR may be located on the first electrode EL1 in the opening portion defined on the pixel defining layer PDL and may extend to the upper portion of the pixel defining layer PDL. However, the embodiments of the present disclosure are not limited thereto. The hole transport region HTR may be patterned to be located inside the opening portion defined on the pixel defining layer PDL.

[0087] The light emitting layer EML is disposed on the hole transport region HTR and may have a single layer structure having a single layer formed of a single material or a multilayer structure having a plurality of layers formed of a plurality of different materials.

[0088] In the display device DS of the embodiment, the light emitting layer EML may be configured to emit blue light. The light emitting layer EML is not specifically limited as long as it is suitable and commonly used in the art, and may include a fluorescent material or a phosphorescent material. In addition, the light emitting layer EML may include a host and a dopant. Figure 3 , the light emitting layer EML is shown as being provided as a common layer for the entire (or substantially the entire) first light emitting region PXA-R, the second light emitting region PXA-G, and the third light emitting region PXA-B. However, the embodiments of the present disclosure are not limited thereto. Figure 3 Unlike that shown in , the light emitting layer EML may be located inside the opening portion defined on the pixel defining layer PDL. For example, when the light emitting layer EML is divided by the pixel defining layer PDL, the light emitting layer EML corresponding to each light emitting region PXA-R, PXA-G, and PXA-B may be configured to emit light of the same (e.g., substantially the same) wavelength region, or may be configured to emit light of different wavelength regions.

[0089] The electron transport region ETR is disposed on the light emitting layer EML. The electron transport region ETR may include at least one selected from a hole blocking layer, an electron transport layer, and an electron injection layer, but is not limited thereto.

[0090] When the electron transport region ETR includes an electron injection layer and an electron transport layer, any suitable electron injection material and any suitable electron transport material available in the art may be used in the electron injection layer and the electron transport layer, respectively.

[0091] The second electrode EL2 is disposed on the electron transport region ETR. The second electrode EL2 may be a common electrode and / or a cathode. The second electrode EL2 may be formed of a metal alloy and / or a conductive compound. The second electrode EL2 may be a transmissive electrode, a transflective electrode or a reflective electrode. When the second electrode EL2 is a transmissive electrode, the second electrode EL2 may be formed of a transparent metal oxide, for example, indium tin oxide (ITO), indium zinc oxide (IZO), zinc oxide (ZnO), indium tin zinc oxide (ITZO), etc.

[0092] When the second electrode EL2 is a transflective electrode or a reflective electrode, the second electrode EL2 may include Ag, Mg, Cu, Al, Pt, Pd, Au, Ni, Nd, Ir, Cr, Li, Ca, LiF / Ca, LiF / Al, Mo, Ti, or a compound or mixture thereof (e.g., a mixture of Ag and Mg). In some embodiments, the second electrode EL2 may have a multilayer structure including a reflective film or a transflective film and a transparent conductive film, the reflective film and the transflective film are both formed of the materials exemplified above, and the transparent conductive film is formed of indium tin oxide (ITO), indium zinc oxide (IZO), zinc oxide (ZnO), indium tin zinc oxide (ITZO), etc.

[0093] Reference Figure 3 , the electron transport region ETR and the second electrode EL2 can be positioned not only in the region overlapping the first electrode EL1, but also on the pixel defining layer PDL by further extending to the pixel defining layer PDL. In some embodiments, the second electrode EL2 can be connected to the auxiliary electrode. When the second electrode EL2 is connected to the auxiliary electrode, the resistance of the second electrode EL2 can be reduced.

[0094] The display element layer DP-OEL may include a plurality of organic electroluminescent devices OEL. The plurality of organic electroluminescent devices OEL may be separated by a pixel defining layer PDL. Figure 3 In an embodiment, the display element layer DP-OEL includes first electrodes EL1 spaced apart from each other on a plane, and the pixel defining layer PDL may be disposed between the first electrodes EL1 spaced apart from each other. Figure 3 In the display device DS according to the embodiment shown in , a plurality of organic electroluminescent devices OEL may be separated based on the first electrodes EL1 spaced apart from each other.

[0095] In the display panel DP according to the embodiment, each of the light emitting regions PXA-R, PXA-G, and PXA-B may be a region separated by the pixel defining layer PDL. The non-light emitting region NPXA is a region between the light emitting regions PXA-R, PXA-G, and PXA-B, and may be a region corresponding to the pixel defining layer PDL.

[0096] The pixel defining layer PDL may be formed of a polymer resin. For example, the pixel defining layer PDL may be formed by including a polyacrylate resin and / or a polyimide resin. In addition, in addition to the polymer resin, the pixel defining layer PDL may be formed by further including an inorganic material. In some embodiments, the pixel defining layer PDL may be formed by including a light absorbing material, and / or may be formed by including a black pigment and / or a black dye. The pixel defining layer PDL formed by including a black pigment and / or a black dye may implement a black pixel defining layer. When forming the pixel defining layer PDL, carbon black or the like may be used as a black pigment and / or a black dye, but the embodiments of the present disclosure are not limited thereto.

[0097] In addition, the pixel defining layer PDL may include an inorganic material. For example, the pixel defining layer PDL may include silicon nitride (SiN x ), silicon oxide (SiO x ), silicon oxynitride (SiO x N y ) etc. The pixel defining layer PDL may define the light emitting regions PXA-R, PXA-G and PXA-B. The light emitting regions PXA-R, PXA-G and PXA-B may be separated by the pixel defining layer PDL.

[0098] The encapsulation layer TFE may be positioned on the organic electroluminescent device OEL, and the encapsulation layer TFE may be on the second electrode EL2. The encapsulation layer TFE may be directly on the second electrode EL2. The encapsulation layer TFE may be a single sublayer or a plurality of stacked sublayers. The encapsulation layer TFE may be a thin film encapsulation layer. The encapsulation layer TFE protects the organic electroluminescent device OEL. The encapsulation layer TFE may cover the upper surface of the second electrode EL2.

[0099] The color conversion layer CCL may be positioned on the display panel DP. The color conversion layer CCL may include a light converter. The light converter may be a quantum dot or a phosphor, etc. The light converter may be configured to convert the wavelength of the provided light and emit the light (e.g., substantially emit the light). For example, the color conversion layer CCL may be a layer including quantum dots and / or a layer including a phosphor.

[0100] The color conversion layer CCL may include a plurality of color conversion parts CCL1, CCL2, and CCL3. The color conversion parts CCL1, CCL2, and CCL3 may be spaced apart from each other.

[0101] Reference Figure 3 , the light blocking portion BM may be disposed between the color conversion portions CCL1, CCL2, and CCL3 that are spaced apart from each other, but the embodiments of the present disclosure are not limited thereto. Figure 3, the light blocking portion BM is shown not to overlap the color conversion portions CCL1, CCL2, and CCL3, but edges of the color conversion portions CCL1, CCL2, and CCL3 may overlap at least a portion of the light blocking portion BM.

[0102] The color conversion layer CCL is on the display panel DP. For example, the color conversion layer CCL may be directly on the encapsulation layer TFE. However, the embodiments of the present disclosure are not limited thereto. A barrier layer may also be provided between the encapsulation layer TFE and the color conversion layer CCL.

[0103] The barrier layer may be used to prevent or reduce the penetration of moisture and / or oxygen (hereinafter, referred to as "moisture / oxygen"). The barrier layer may be on the color conversion layer CCL to prevent or reduce the color conversion layer CCL from being exposed to moisture / oxygen. In some embodiments, the barrier layer may cover the color conversion layer CCL. In addition, the barrier layer may be disposed between the color conversion layer CCL and the color filter layer CFL.

[0104] The barrier layer may include at least one inorganic layer. In some embodiments, the barrier layer may be formed by including an inorganic material. For example, the barrier layer may be formed by including silicon nitride, aluminum nitride, zirconium nitride, titanium nitride, hafnium nitride, tantalum nitride, silicon oxide, aluminum oxide, titanium oxide, tin oxide, cerium oxide, silicon oxynitride and / or a light-transmitting metal film. In some embodiments, the barrier layer may also include an organic film. The barrier layer may be formed by a single layer or multiple layers.

[0105] The color conversion layer CCL may include a first color conversion portion CCL1 including first quantum dots QD1 configured to convert a first color light provided from the organic electroluminescent device OEL into a second color light, a second color conversion portion CCL2 including second quantum dots QD2 configured to convert the first color light into a third color light, and a third color conversion portion CCL3 configured to transmit the first color light.

[0106] In an embodiment, the first color conversion portion CCL1 may be configured to provide red light as the second color light, and the second color conversion portion CCL2 may be configured to provide green light as the third color light. The third color conversion portion CCL3 may be configured to transmit and provide blue light as the first color light provided from the organic electroluminescent device OEL. For example, the first quantum dot QD1 may be a red quantum dot, and the second quantum dot QD2 may be a green quantum dot.

[0107] Quantum dots may be particles configured to convert the wavelength of light provided from the display panel DP. Quantum dots are materials having a crystal structure of a few nanometers in size and are composed of hundreds to thousands of atoms. Due to the small size of quantum dots, quantum dots exhibit a quantum confinement effect in which the energy band gap is increased. When light of a wavelength having an energy higher than the band gap is incident on the quantum dots, the quantum dots are excited by absorbing the light and fall to the ground state by emitting light of a set or specific wavelength. The wavelength of the emitted light has a value corresponding to the band gap. When the size and composition of the quantum dots are adjusted, the luminescent properties due to the quantum confinement effect can be adjusted. The color of the emitted light can be changed according to the particle size of the quantum dots. The smaller the particle size of the quantum dots, the shorter the wavelength region of light that can be emitted. For example, the particle size of quantum dots configured to emit green light may be smaller than the particle size of quantum dots configured to emit red light.

[0108] The quantum dots may be selected from Group II-VI compounds, Group III-V compounds, Group IV-VI compounds, Group IV elements, Group IV compounds, and combinations thereof.

[0109] The II-VI compounds may be selected from the group consisting of binary compounds, ternary compounds and quaternary compounds, the binary compounds being selected from the group consisting of CdSe, CdTe, ZnS, ZnSe, ZnTe, ZnO, HgS, HgSe, HgTe, MgSe, MgS and mixtures thereof, and the ternary compounds being selected from the group consisting of CdSeS, CdSeTe, CdSTe, ZnSeS, ZnSeTe, ZnSTe, HgSeS, HgSeTe, HgSTe, CdZnS, Cd The invention also includes a method for preparing the present invention and a method for preparing the present invention. The invention also includes a method for preparing the present invention and a method for preparing the present invention. The invention also includes a method for preparing the present invention and a method for preparing the present invention.

[0110] The III-V compound may be selected from the group consisting of binary compounds, ternary compounds and quaternary compounds, the binary compound being selected from the group consisting of GaN, GaP, GaAs, GaSb, AlN, AlP, AlAs, AlSb, InN, InP, InAs, InSb and mixtures thereof, the ternary compound being selected from the group consisting of GaNP, GaNAs, GaNSb, GaPAs, GaPSb, AlNP, AlNAs, AlNSb, AlPAs, AlPSb, InNP, InNAs, InNSb, InPAs, InPSb and mixtures thereof, and the quaternary compound being selected from the group consisting of GaAlNP, GaAlNAs, GaAlNSb, GaAlPAs, GaAlPSb, GaInNP, GaInNAs, GaInNSb, GaInPAs, GaInPSb, InAlNP, InAlNAs, InAlNSb, InAlPAs, InAlPSb and mixtures thereof. The IV-VI compound may be selected from the group consisting of binary compounds, ternary compounds and quaternary compounds, the binary compound being selected from the group consisting of SnS, SnSe, SnTe, PbS, PbSe, PbTe and mixtures thereof, the ternary compound being selected from the group consisting of SnSeS, SnSeTe, SnSTe, PbSeS, PbSeTe, PbSTe, SnPbS, SnPbSe, SnPbTe and mixtures thereof, and the quaternary compound being selected from the group consisting of SnPbSSe, SnPbSeTe, SnPbSTe and mixtures thereof. The IV group element may be selected from the group consisting of Si, Ge and mixtures thereof. The IV group compound may be a binary compound selected from the group consisting of SiC, SiGe and mixtures thereof.

[0111] In some embodiments, the binary, ternary, and / or quaternary compounds may be present in a particle with a uniform (eg, substantially uniform) concentration distribution, or may be present in the same particle with partially different concentrations.

[0112] The quantum dot may have a core / shell structure in which a core and a shell surrounding the core are included. In addition, the quantum dot may have a core / shell structure in which one quantum dot surrounds another quantum dot. The interface between the core and the shell may have a concentration gradient in which the concentration of the element present in the shell becomes lower toward the center.

[0113] The quantum dot may be a particle having a nanometer size. The quantum dot may have a full width at half maximum (FWHM) of a light emission wavelength spectrum of about 45 nm or narrower (e.g., about 40 nm or narrower, or about 30 nm or narrower), and may improve color purity or color reproducibility in the aforementioned range. In addition, the light emitted by such a quantum dot is emitted in all directions, thereby improving a wide viewing angle.

[0114] In addition, the form of quantum dots is not particularly limited, as long as the quantum dots are suitable and commonly used in the art. For example, quantum dots in the form of spherical, pyramidal, multi-armed and / or cubic nanoparticles, nanotubes, nanowires, nanofibers, nanoparticles, etc. can be used.

[0115] The first color conversion portion CCL1 may include a matrix portion MX and first quantum dots QD1 dispersed in the matrix portion MX. The first color conversion portion CCL1 may further include a scattering agent SP dispersed in the matrix portion MX. The second color conversion portion CCL2 may include a matrix portion MX and second quantum dots QD2 dispersed in the matrix portion MX, and may further include a scattering agent SP. In addition, the third color conversion portion CCL3 may include a matrix portion MX and a scattering agent SP.

[0116] The matrix part MX is a dispersion medium in which quantum dots QD1 and / or QD2 and / or scattering agent SP are dispersed, and can be formed of various resin compositions that can be referred to as adhesives. The matrix part MX can be formed of a polymer resin composition. For example, the polymer resin composition forming the matrix part MX can include acrylic resin, urethane resin, siloxane resin, epoxy resin, etc. The polymer resin composition can be transparent.

[0117] The scattering agent SP may be inorganic particles. For example, the scattering agent SP may include TiO 2 、ZnO、Al 2 O 3 、SiO 2 and hollow silica. The scattering agent SP may include TiO 2 、ZnO、Al 2 O 3 、SiO 2 and hollow silica, or may be selected from TiO 2 、ZnO、Al 2 O 3 、SiO 2 and a mixture of two or more materials selected from hollow silica.

[0118] The first color conversion portion CCL1 may correspond to the first light emitting region PXA-R, the second color conversion portion CCL2 may correspond to the second light emitting region PXA-G, and the third color conversion portion CCL3 may correspond to the third light emitting region PXA-B.

[0119] In the display device DS of the embodiment, the color filter layer CFL may be on the color conversion layer CCL. For example, the color filter layer CFL may be directly on the color conversion layer CCL. However, the embodiments of the present disclosure are not limited thereto. A blocking layer may also be provided between the color conversion layer CCL and the color filter layer CFL.

[0120] The barrier layer may include an inorganic layer.

[0121] The color filter layer CFL may include a plurality of filters. The color filter layer CFL may include a first filter CF1 configured to transmit the second color light, a second filter CF2 configured to transmit the third color light, and a third filter CF3 configured to transmit the first color light. For example, the first filter CF1 may be a red filter, the second filter CF2 may be a green filter, and the third filter CF3 may be a blue filter.

[0122] Each of the filters CF1, CF2 and CF3 may include a polymer photosensitive resin and a pigment or dye. The first filter CF1 may include a red pigment and / or a red dye, the second filter CF2 may include a green pigment and / or a green dye, and the third filter CF3 may include a blue pigment and / or a blue dye.

[0123] However, the embodiments of the present disclosure are not limited thereto. The third filter CF3 may not include a pigment or a dye. The third filter CF3 may include a polymer photosensitive resin, but may not include a pigment or a dye. The third filter CF3 may be transparent. The third filter CF3 may be formed of a transparent photosensitive resin.

[0124] The display device DS of the embodiment includes a light blocking layer BML on the display panel DP. A main opening portion OH-M and a sub-opening portion OH-S may be defined on the light blocking layer BML. The light blocking layer BML may include a light blocking portion BM, a main opening portion OH-M, and a sub-opening portion OH-S. The light blocking portion BM may be disposed between the main opening portions OH-M, between the main opening portion OH-M and the sub-opening portion OH-S, and between the sub-opening portions OH-S.

[0125] The light blocking layer BML may be a black matrix. The light blocking layer BML may be formed by including an organic light blocking material and / or an inorganic light blocking material (the organic light blocking material and the inorganic light blocking material both include a black pigment and / or a black dye). The light blocking layer BML may prevent or reduce light leakage and distinguish the boundaries between adjacent color conversion parts CCL1, CCL2, and CCL3 and / or overlap with the boundaries between adjacent filters CF1, CF2, and CF3.

[0126] The main opening portion OH-M may be defined to correspond to the light emitting region PXA. The main opening portion OH-M may be defined to correspond to each of the first light emitting region PXA-R, the second light emitting region PXA-G, and the third light emitting region PXA-B. The sub-opening portion OH-S may be defined to correspond to the non-light emitting region NPXA. The sub-opening portion OH-S may be defined to correspond to the first reflective region RA-R and the second reflective region RA-B.

[0127] The base substrate BS may be positioned on the color filter layer CFL. The base substrate BS may be a member providing a base surface on which the color filter layer CFL, the light blocking layer BML, the color conversion layer CCL, etc. are positioned. The base substrate BS may be a glass substrate, a metal substrate, a plastic substrate, etc. However, the embodiments of the present disclosure are not limited thereto, and the base substrate BS may be an inorganic layer, an organic layer, and / or a composite material layer.

[0128] Figure 4 It is a cross-sectional view of part of the display device DS according to the embodiment. Figure 4 Can include Figure 2 2 is a cross-sectional view of a portion of a first light emitting region PXA-R and a first reflective region RA-R adjacent to the first light emitting region PXA-R in the display device DS of the embodiment shown in FIG.

[0129] The main exposure area OPA-M, which is an area defined by the main opening portion OH-M of the light blocking layer BML, may be an area corresponding to each of the first light emitting area PXA-R, the second light emitting area PXA-G, and the third light emitting area PXA-B. The sub-exposure area OPA-S defined by the sub-opening portion OH-S of the light blocking layer BML may be an area corresponding to the reflective area RA.

[0130] Reference Figure 4 , the main opening portion OH-M may be defined to correspond to the first light emitting region PXA-R, and the sub opening portion OH-S may be defined to correspond to the first reflective region RA-R.

[0131] The first filter CF1 may be disposed on the first color conversion part CCL1 and the light blocking layer BML. The first filter CF1 may include a first main filter part CF1-M, a first light blocking filter part CF1-B, and a first sub-filter part CF1-S.

[0132] The first main filter part CF1-M may be positioned to correspond to the first light emitting area PXA-R, and the first sub-filter part CF1-S and the first light blocking filter part CF1-B may be positioned to correspond to the non-light emitting area NPXA. The first main filter part CF1-M may be a part corresponding to the main opening part OH-M, and the first sub-filter part CF1-S may be a part corresponding to the sub-opening part OH-S. In addition, the first light blocking filter part CF1-B may be in the non-light emitting area NPXA and may not overlap with the sub-opening part OH-S. Figure 4 The cross-section of the non-luminous area NPXA and the first luminous area PXA-R including the light blocking area BA and the first reflective area RA-R is exemplarily shown, and the same can be applied to the non-luminous area NPXA and the third luminous area PXA-B including the light blocking area BA and the second reflective area RA-B.

[0133] Figure 5 is a diagram showing the display device DS and Figure 2 Area AA corresponds to the plan view of the portion. Figure 5 Can include Figure 3 2 is a plan view of portions of a color filter layer CFL and a light blocking layer BML in a display device DS of the embodiment shown in FIG.

[0134] Reference Figure 5 The main opening portion OH-M and the sub opening portion OH-S may be defined on the light blocking layer BML. The remaining portion on which the main opening portion OH-M and the sub opening portion OH-S are not defined may be the light blocking portion BM.

[0135] When viewed on a plane defined by the first direction axis DR1 and the second direction axis DR2, the main filter parts CF1-M, CF2-M and CF3-M may be exposed in the main opening part OH-M, and the sub-filter parts CF1-S and CF3-S may be exposed in the sub-opening part OH-S. In this specification, the description that the filter parts are exposed means that the filter parts do not overlap the light blocking part BM.

[0136] Based on the total area of ​​the first main filter part CF1-M, the first light blocking filter part CF1-B and the first sub-filter part CF1-S, the area of ​​the first sub-filter part CF1-S may be greater than 0% to less than or equal to 10%. In the display device DS of the embodiment, based on 100% of the area of ​​the entire (e.g., substantially the entire) display area DA, the area of ​​the first filter CF1 exposed in the non-light emitting area NPXA may be adjusted to be greater than 0% to less than or equal to 10% to improve the reflective color sense in the display device DS of the embodiment.

[0137] In addition, based on the total area of ​​the third main filter part CF3-M, the third light blocking filter part CF3-B and the third sub-filter part CF3-S, the area of ​​the third sub-filter part CF3-S may be greater than 0% to less than or equal to 10%. In the display device DS of the embodiment, the area of ​​the third filter CF3 exposed in the non-light emitting area NPXA may be adjusted to improve the reflective color sense in the display device DS of the embodiment.

[0138] Figure 6 is shown with Figure 2 A cross-sectional view of the portion corresponding to line III-III'. Figure 6 is a cross-sectional view showing part of the display device DS. Figure 6 In the cross-sectional view of FIG. 1 , for the convenience of explanation, although part of the display device DS is shown, the structure of the display panel DP is not further shown.

[0139] In the display device DS of the embodiment, the color conversion layer CCL may include a first color conversion portion CCL1 positioned to correspond to the first light emitting region PXA-R, a second color conversion portion CCL2 positioned to correspond to the second light emitting region PXA-G, and a third color conversion portion CCL3 positioned to correspond to the third light emitting region PXA-B. The light blocking portion BM may be positioned between adjacent color conversion portions of the first color conversion portion CCL1, the second color conversion portion CCL2, and the third color conversion portion CCL3.

[0140] The color filter layer CFL may be positioned on the color conversion layer CCL. The color filter layer CFL may include a first filter CF1, a second filter CF2, and a third filter CF3. A boundary BRL between adjacent first filters CF1, second filters CF2, and third filters CF3 may overlap the light blocking portion BM.

[0141] The first filter CF1 may include a first main filter portion CF1-M, a first light blocking filter portion CF1-B adjacent to the first main filter portion CF1-M, and a first sub-filter portion CF1-S spaced apart from the first main filter portion CF1-M. The third filter CF3 may include a third main filter portion CF3-M, a third light blocking filter portion CF3-B adjacent to the third main filter portion CF3-M, and a third sub-filter portion CF3-S spaced apart from the third main filter portion CF3-M.

[0142] In some embodiments, the second filter CF2 may include a second main filter portion CF2-M and a second light blocking filter portion CF2-B. The second light blocking filter portion CF2-B may be positioned adjacent to the second main filter portion CF2-M. The second filter CF2 may not include a sub-filter portion.

[0143] Each of the first main filter part CF1-M, the second main filter part CF2-M, and the third main filter part CF3-M may be a part corresponding to the first light emitting area PXA-R, the second light emitting area PXA-G, and the third light emitting area PXA-B, respectively. Each of the first sub-filter part CF1-S and the third sub-filter part CF3-S may be a part corresponding to the first reflection area RA-R and the second reflection area RA-B, respectively.

[0144] The light blocking layer BML may include a light blocking portion BM, a main opening portion OH-M, and a sub opening portion OH-S. The light blocking portion BM may overlap the light blocking filter portions CF1-B, CF2-B, and CF3-B of the color filter layer CFL. The light blocking portion BM may not overlap the main filter portions CF1-M, CF2-M, and CF3-M and the sub filter portions CF1-S and CF3-S of the color filter layer CFL.

[0145] Figure 7 is a graph showing the reflectivity evaluation results by wavelength for the comparative example and the example. Figure 7 In the example, there is Figure 6 The evaluation results of the display device DS of the embodiment of the structure shown in the cross-sectional view are shown in FIG. Figure 6 Unlike the display device DS of the embodiment shown in , the comparative example is an evaluation result for the case in which the sub opening portion OH-S is not defined in the light blocking layer BML.

[0146] Reference Figure 7 In the graph of FIG. 1 , in the wavelength region near 450 nm and the wavelength region near 650 nm, the example shows a reflectivity higher than that of the comparative example. Figure 7As a result, the example shows increased reflectivity in the blue light emitting region near 450 nm and in the red light emitting region near 650 nm, so that it can be seen that the yellowish reflective color sense has been adjusted compared to the display device of the comparative example.

[0147] Table 1 shows the results of comparing the display qualities of the display devices of the example and the comparative example.

[0148] Table 1

[0149]

[0150] In Table 1, when the display area DA (see FIG. 1 ) including the light emitting areas PXA-R, PXA-G, and PXA-B and the non-light emitting area NPXA Figure 2 ) is 100%, the area ratio of the light emitting area represents the area ratio of each of the light emitting areas. In addition, the area ratio of the non-light emitting area represents the ratio of the area of ​​the filters CF1 and CF3 exposed in the non-light emitting area NPXA. For example, when the display area DA (see FIG. 1 ) including the light emitting areas PXA-R, PXA-G, and PXA-B and the non-light emitting area NPXA Figure 2 ) is 100%, the area ratio of the non-luminescent area represents the area ratio of each of the reflective areas RA-R and RA-B which are areas exposed by the quilt opening portion OH-S of the filter.

[0151] In the case of the example, the reflectivity of the example is slightly increased compared to the reflectivity of the comparative example. When compared with the comparative example, in the display device DS of the embodiment, the area of ​​the first reflection area RA-R and the area of ​​the second reflection area RA-B are increased, so that the SCE color coordinates (X, Y) indicating the reflection color sense are changed from (0.305, 0.381) to (0.295, 0.313). Therefore, it can be confirmed that the reflected light with a yellowish color sense is changed to a reflected light with a neutral color sense.

[0152] For example, in the display device of the embodiment, due to the sub-opening portion defined in the light blocking layer corresponding to the non-luminous area, part of the color filter is exposed in the non-luminous area, so that there can be an effect of improving the reflection color sense caused by external light by the light reflected from the exposed color filter. In addition, without changing the driving method of the organic electroluminescent device in the display panel, the display quality of the display device can be improved by adjusting the area of ​​the exposed color filter.

[0153] In the following, reference will be made to Figures 8 to 19 The display device of the embodiment is described. Figures 9 to 19 In the description of the display device of the embodiment shown in FIG. 1 , the description of the display device of the embodiment shown in FIG. 1 will not be repeated here with reference to FIG. Figures 1 to 6The contents that are the same as those described above will be described below. Instead, the differences will be mainly described.

[0154] Figure 8 is a cross-sectional view showing a display device DS-a of the embodiment, Fig. 9 is a plan view showing part of the display device DS-a of the embodiment, and Fig.10 1 is a cross-sectional view showing part of the display device DS-a according to the embodiment.

[0155] Figure 8 is shown with Figure 3 The cross section of the display device DS of the embodiment shown in is a cross-sectional view of a portion of the display device DS-a of the embodiment corresponding to . Figure 8 The display device DS-a of the embodiment shown in FIG. 4 includes a display panel DP, a color conversion layer CCL on the display panel DP, a light blocking layer BML on the display panel DP, and a color filter layer CFL-a on the color conversion layer CCL.

[0156] exist Figure 8 The display device DS-a according to the embodiment of the present disclosure shown in FIG. Figure 3 The same contents as described may be applied to the display panel DP, the color conversion layer CCL, and the light blocking layer BML. In the display device DS-a according to the embodiment, the color conversion layer CCL may include a first color conversion part CCL1, a second color conversion part CCL2, and a third color conversion part CCL3.

[0157] In an embodiment, the color filter layer CFL-a may include a third filter CF3 and a fourth filter CF4. The third filter CF3 may overlap the third color conversion portion CCL3, and the fourth filter CF4 may overlap the first color conversion portion CCL1 and the second color conversion portion CCL2.

[0158] The third filter CF3 may be configured to transmit blue light as the first color light. The third filter CF3 may include a blue pigment. In addition, in some embodiments, the third filter CF3 may be a transparent filter.

[0159] The fourth filter CF4 may be configured to transmit a fourth color light. The fourth color light may be yellow light. For example, the fourth filter CF4 may be a yellow filter. The fourth filter CF4 may be overlapped and integrally disposed with the first color conversion portion CCL1 and the second color conversion portion CCL2 (e.g., integrally formed with each other, e.g., formed as a single piece).

[0160] Fig. 9 It is shown Figure 8 0 is a plan view of a portion of a display device DS-a according to an embodiment shown in FIG. Fig. 9is shown with Figure 5 The portion of the display device DS of the embodiment shown in is a plan view of a portion AA-a of the display device DS-a of the embodiment corresponding to the portion.

[0161] Reference Fig. 9 , a main opening portion OH-M and a sub-opening portion OH-S may be defined on the light blocking layer BML. When viewed on a plane defined by the first direction axis DR1 and the second direction axis DR2, the main filter portions CF4-RM, CF4-GM, and CF3-M may be exposed in the main opening portion OH-M, and the sub-filter portions CF4-S and CF3-S may be exposed in the sub-opening portion OH-S.

[0162] The fourth main filter parts CF4-RM and CF4-GM not overlapping the light blocking part BM and exposed in the main opening part OH-M may be yellow filters. The third main filter part CF3-M not overlapping the light blocking part BM and exposed in the main opening part OH-M may be a blue filter.

[0163] In addition, the fourth sub-filter portion CF4-S that does not overlap with the light blocking portion BM and is exposed in the sub-opening portion OH-S may be a yellow filter, and the third sub-filter portion CF3-S that does not overlap with the light blocking portion BM and is exposed in the sub-opening portion OH-S may be a blue filter.

[0164] Fig.10 It is shown Figure 8 0 is a cross-sectional view of a portion of a display device DS-a according to an embodiment shown in FIG. Fig.10 is shown with Figure 6 A cross-sectional view of a portion of a display device DS-a of an embodiment corresponding to the display device DS of the embodiment shown in FIG. Fig.10 In the cross-sectional view, for the convenience of explanation, although part of the display device DS-a is shown, the structure of the display panel DP is not further shown.

[0165] When the general Fig.10 The display device DS-a of the embodiment shown in FIG. 1 is different from the display device DS-a described above. Figure 6 When compared with the display device DS of the embodiment shown in FIG. , there is a difference in the structure of the color filter layer CFL-a. Fig.10 The fourth filter CF4 may include a fourth main filter portion CF4-RM and CF4-GM, a fourth light blocking filter portion CF4-B adjacent to the fourth main filter portion CF4-RM and CF4-GM, and a fourth sub-filter portion CF4-S spaced apart from the fourth main filter portion CF4-RM and CF4-GM.

[0166] The fourth main filter parts CF4-RM and CF4-GM may be parts corresponding to the first and second light emitting areas PXA-R and PXA-G. The fourth sub-filter part CF4-S may be a part corresponding to the sub-opening part OH-S defined in the light blocking layer BML.

[0167] exist Fig.10 In the display device DS-a of the embodiment shown in , the third filter CF3 may include a third main filter portion CF3-M, a third light blocking filter portion CF3-B adjacent to the third main filter portion CF3-M, and a third sub-filter portion CF3-S spaced apart from the third main filter portion CF3-M. The third main filter portion CF3-M may be a portion corresponding to the third light emitting area PXA-B. The third sub-filter portion CF3-S may be a portion corresponding to the sub-opening portion OH-S defined in the light blocking layer BML.

[0168] With reference Figure 3 The same contents described about the display device DS of the embodiment can be applied to Fig.10 The color conversion parts CCL1, CCL2 and CCL3 in the display device DS-a of the embodiment shown in FIG.

[0169] Fig.11 is a cross-sectional view showing a display device DS-b of the embodiment, and Fig.12 and Fig.13 1 and 2 are cross-sectional views showing parts of the display device DS-b of the embodiment. Fig.13 In the cross-sectional view, for the convenience of explanation, although part of the display device DS-b is shown, the structure of the display panel DP is not further shown.

[0170] Figures 11 to 13 The display device DS-b of the embodiment shown in FIG. 1 includes a display panel DP, a color conversion layer CCL on the display panel DP, a light blocking layer BML on the display panel DP, and a color filter layer CFL on the color conversion layer CCL. In the display device DS-b of the embodiment, the light blocking layer BML may be disposed above the color conversion layer CCL. For example, when compared with the reference Figures 3 to 6 When comparing the display device DS of the embodiment described above, the light blocking layer BML is positioned to Figures 11 to 13 The light blocking portion BM of the light blocking layer BML may be between the filters CF1, CF2, and CF3. In addition, the light blocking layer BML may be covered by the color filter layer CFL.

[0171] Reference Fig.12 and Fig.13, in the display device DS-b of the embodiment, the color conversion layer CCL may be above the display panel DP, the color filter layer CFL may be above the color conversion layer CCL, and the light blocking layer BML may be above the color filter layer CFL.

[0172] In the display device DS-b of the embodiment, the color conversion layer CCL may include a first color conversion portion CCL1 positioned corresponding to the first light emitting area PXA-R, a second color conversion portion CCL2 positioned corresponding to the second light emitting area PXA-G, and a third color conversion portion CCL3 positioned corresponding to the third light emitting area PXA-B.

[0173] The color filter layer CFL may be positioned on the color conversion layer CCL. The color filter layer CFL may include a first filter CF1, a second filter CF2, and a third filter CF3. A boundary BRL between adjacent filters among the first filter CF1, the second filter CF2, and the third filter CF3 may overlap the light blocking portion BM.

[0174] The first filter CF1 may include a first main filter portion CF1-M, a first light blocking filter portion CF1-B adjacent to the first main filter portion CF1-M, and a first sub-filter portion CF1-S spaced apart from the first main filter portion CF1-M. The third filter CF3 may include a third main filter portion CF3-M, a third light blocking filter portion CF3-B adjacent to the third main filter portion CF3-M, and a third sub-filter portion CF3-S spaced apart from the third main filter portion CF3-M.

[0175] The second filter CF2 may include a second main filter part CF2-M and a second light blocking filter part CF2-B. The second light blocking filter part CF2-B may be adjacent to the second main filter part CF2-M. The second filter CF2 may not include a sub filter part.

[0176] The light blocking layer BML may include a light blocking portion BM, a main opening portion OH-M, and a sub-opening portion OH-S. The light blocking portion BM may overlap with the light blocking filter portions CF1-B, CF2-B, and CF3-B of the color filter layer CFL. The light blocking portion BM may not overlap with the main filter portions CF1-M, CF2-M, and CF3-M and the sub-filter portions CF1-S and CF3-S of the color filter layer CFL. The light blocking portion BM may be between the main filter portions CF1-M, CF2-M, and CF3-M, and between the main filter portions CF1-M and CF3-M and the sub-filter portions CF1-S and CF3-S.

[0177] Used to manufacture Figures 11 to 13The method of the display device DS-b of the embodiment shown in the figure may be performed, for example, in the order of forming a light blocking layer BML on a base substrate BS and forming a color filter layer CFL on the provided light blocking layer BML. For example, a light blocking material may be provided on the base substrate BS to form a light blocking layer BML having a main opening portion OH-M and a sub-opening portion OH-S defined thereon, and then a plurality of filters CF1, CF2, and CF3 may be sequentially provided to form the color filter layer CFL.

[0178] In some embodiments, for making a reference Figures 3 to 6 The method of the display device DS of the described embodiment may be performed in the order of forming a color filter layer CFL on a base substrate BS, forming a light blocking layer BML on the color filter layer CFL, and then forming a color conversion layer CCL on the color filter layer CFL. For example, a plurality of filters CF1, CF2, and CF3 may be sequentially disposed on the base substrate BS to form the color filter layer CFL, and then a light blocking material may be disposed on the color filter layer CFL, and a main opening portion OH-M and a sub-opening portion OH-S may be defined to form the light blocking layer BML. Thereafter, a first color conversion portion CCL1, a second color conversion portion CCL2, and a third color conversion portion CCL3 may be formed between the light blocking portions BM.

[0179] The method for manufacturing the display devices DS and DS-b of the embodiments described above is merely exemplary, and the manufacturing method is not limited thereto.

[0180] Fig.14 DS-c is a cross-sectional view showing a display device DS-c of the embodiment. Fig.14 The display device DS-c of the embodiment shown in FIG. Fig.13 When compared with the display device DS-b of the embodiment shown in , there is a difference in the structure of the color filter layer CFL-C.

[0181] exist Fig.14 In the display device DS-c of the embodiment shown in FIG. 3 , the color filter layer CFL-C may include a third filter CF3 and a fourth filter CF4. The third filter CF3 may overlap the third color conversion portion CCL3, and the fourth filter CF4 may overlap the first color conversion portion CCL1 and the second color conversion portion CCL2.

[0182] The third filter CF3 may be configured to transmit blue light as the first color light. The third filter CF3 may include a blue pigment. In addition, in some embodiments, the third filter CF3 may be a transparent filter. The fourth filter CF4 may be configured to transmit a fourth color light. The fourth color light may be yellow light. For example, the fourth filter CF4 may be a yellow filter. The fourth filter CF4 may be overlapped with the first color conversion portion CCL1 and the second color conversion portion CCL2 and integrally disposed (e.g., integrally formed with each other, e.g., formed as a single piece).

[0183] The main opening portion OH-M and the sub opening portion OH-S may be defined on the light blocking layer BML. The light blocking portion BM may be disposed between the main opening portions OH-M and between the main opening portion OH-M and the sub opening portion OH-S.

[0184] The fourth filter CF4 may include a fourth main filter portion CF4-RM and CF4-GM, a fourth sub-filter portion CF4-S, and a fourth light blocking filter portion CF4-B, wherein the fourth main filter portions CF4-RM and CF4-GM are not overlapped with the light blocking portion BM and are exposed in the main opening portion OH-M, the fourth sub-filter portion CF4-S is not overlapped with the light blocking portion BM and is exposed in the sub-opening portion OH-S, and the fourth light blocking filter portion CF4-B overlaps with the light blocking portion BM.

[0185] The third filter CF3 may include a third main filter portion CF3-M, a third sub-filter portion CF3-S, and a third light blocking filter portion CF3-B, wherein the third main filter portion CF3-M is not overlapped with the light blocking portion BM and is exposed in the main opening portion OH-M, the third sub-filter portion CF3-S is not overlapped with the light blocking portion BM and is exposed in the sub-opening portion OH-S, and the third light blocking filter portion CF3-B overlaps with the light blocking portion BM.

[0186] Fig.15 and Fig.16 Each is a cross-sectional view showing a display device DS-d according to an embodiment. Fig.15 is shown with Figure 3 The cross section of the display device DS of the embodiment shown in FIG corresponds to a cross-sectional view of the display device DS-d of the embodiment, and Fig.16 is shown with Figure 6 2 is a cross-sectional view of a portion corresponding to a cross section of the display device DS of the embodiment shown in FIG. Fig.15 and Fig.16The display device DS-d of the embodiment shown in FIG. 4 includes a display panel DP, a color conversion layer CCL-d on the display panel DP, a color filter layer CFL-d on the color conversion layer CCL-d, and a light blocking layer BML on the color conversion layer CCL-d.

[0187] With reference Figures 3 to 6 The same contents as described may be applied to the display panel DP. The display panel DP includes a display element layer DP-OEL, and the display panel DP may be configured to provide the first color light emitted from the display element layer DP-OEL to the color conversion layer CCL-d.

[0188] The color conversion layer CCL-d may include a first color conversion portion CCL1, a second color conversion portion CCL2, and a third color conversion portion CCL3-d. The first color conversion portion CCL1 may include a first quantum dot QD1 configured to convert the first color light into the second color light, and the second color conversion portion CCL2 may include a second quantum dot QD2 that converts the first color light into the third color light. The third color conversion portion CCL3-d may be configured to transmit the first color light. The first color conversion portion CCL1, the second color conversion portion CCL2, and the third color conversion portion CCL3-d may further include a scattering agent SP.

[0189] The display device DS-d of the embodiment includes a color filter layer CFL-d including a first filter CF1 and a second filter CF2. In the embodiment, the first filter CF1 may be a red filter, and the second filter CF2 may be a green filter.

[0190] The color filter layer CFL-d further includes a third filter CF3-d, and in an embodiment, the third filter CF3-d and the third color conversion portion CCL3-d may be integrally provided (e.g., may be integrally formed with each other, e.g., may be formed as a single piece). The third filter CF3-d and the third color conversion portion CCL3-d may include a matrix portion MX and a scattering agent SP dispersed in the matrix portion MX. In addition, the third filter CF3-d and the third color conversion portion CCL3-d integrally provided (e.g., may be integrally formed with each other, e.g., may be formed as a single piece) may further include a blue pigment.

[0191] The third filter CF3-d integrally provided with the third color conversion part CCL3-d (e.g., formed integrally with each other, e.g., formed as a single piece) may include a third main filter part CF3-M, a third sub-filter part CF3-S, and a third light blocking filter part CF3-B. Figures 3 to 6 The same contents as described can be applied to the first filter CF1 and the second filter CF2.

[0192] Fig.17 and Fig.18 2 are plan views each showing display devices DS-1 and DS-2 according to the embodiment. Fig.19 is shown with Fig.18 Line IV-IV' corresponds to a cross-sectional view of a portion of the display device DS-2 of the embodiment.

[0193] When the general Fig.17 and Fig.18 The display devices DS-1 and DS-2 of the embodiment shown in FIG. Figure 2 When compared with the display device DS described in the above description, there are differences in the structure of the light-emitting area.

[0194] Reference Fig.17 The display device DS-1 of the embodiment may include a light emitting region PXA-1 and a non-light emitting region NPXA adjacent to the light emitting region PXA-1. The non-light emitting region NPXA may include a reflective region RA and a light blocking region BA.

[0195] The light emitting region PXA-1 includes a first light emitting region PXA-R1, a second light emitting region PXA-G1, and a third light emitting region PXA-B1. In the display device DS-1 of the embodiment, the areas of the first light emitting region PXA-R1, the second light emitting region PXA-G1, and the third light emitting region PXA-B1 may be different from each other. In this specification, the area of ​​the light emitting region may represent an area on a plane defined by the first direction axis DR1 and the second direction axis DR2.

[0196] exist Fig.17 In the display device DS-1 of the embodiment shown in , the area of ​​the first light emitting region PXA-R1 may be larger than the area of ​​each of the second light emitting region PXA-G1 and the third light emitting region PXA-B1. In addition, in the display device DS-1 of the embodiment, the area of ​​the first light emitting region PXA-R1 may be larger than the area of ​​the second light emitting region PXA-G1, and the area of ​​the second light emitting region PXA-G1 may be larger than the area of ​​the third light emitting region PXA-B1.

[0197] The width W1 of the first light emitting region PXA-R1 in the first direction axis DR1 may be greater than the width W2 of the second light emitting region PXA-G1 in the first direction axis DR1 and the width W3 of the third light emitting region PXA-B1 in the first direction axis DR1. In addition, the width W1 of the first light emitting region PXA-R1 in the first direction axis DR1 may be greater than the width W2 of the second light emitting region PXA-G1 in the first direction axis DR1, and the width W2 of the second light emitting region PXA-G1 in the first direction axis DR1 may be greater than the width W3 of the third light emitting region PXA-B1 in the first direction axis DR1.

[0198] For example, in the display device DS-1 of the embodiment, the area of ​​the red light emitting region as the first light emitting region PXA-R1 can be larger than the area of ​​the green light emitting region as the second light emitting region PXA-G1 and the area of ​​the blue light emitting region as the third light emitting region PXA-B1.

[0199] However, the area ratio of the first light emitting region PXA-R1, the second light emitting region PXA-G1, and the third light emitting region PXA-B1 is not limited to Fig.17 The area ratio of the first light emitting region PXA-R1, the second light emitting region PXA-G1 and the third light emitting region PXA-B1 can be adjusted in various ways according to the desired or required display color in the display device DS-1 of the embodiment.

[0200] Reference Fig.18 The display device DS-2 of the embodiment includes a light emitting area PXA-2 and a non-light emitting area NPXA adjacent to the light emitting area PXA-2. The non-light emitting area NPXA may include a reflective area RA and a light blocking area BA.

[0201] The light emitting region PXA-2 includes a first light emitting region PXA-R, a second light emitting region PXA-G, a third light emitting region PXA-B2, and a fourth light emitting region PXA-W. Figure 2 Compared with the display device DS of the embodiment shown in , the display device DS-2 of the embodiment may further include a fourth light emitting area PXA-W.

[0202] The fourth light emitting region PXA-W may be configured to provide light of a wavelength different from the wavelength of light provided by the first light emitting region PXA-R, the second light emitting region PXA-G, and the third light emitting region PXA-B2. The first light emitting region PXA-R may be a red light emitting region, the second light emitting region PXA-G may be a green light emitting region, and the third light emitting region PXA-B may be a blue light emitting region. For example, the fourth light emitting region PXA-W may be a white light emitting region configured to provide white light.

[0203] exist Fig.18 In the display device DS-2 of the embodiment shown in , the third light-emitting region PXA-B and the fourth light-emitting region PXA-W are shown as being cross-arranged in the direction of the second direction axis DR2. However, the embodiments of the present disclosure are not limited thereto. The first light-emitting region PXA-R, the second light-emitting region PXA-G, the third light-emitting region PXA-B2, and the fourth light-emitting region PXA-W may be arranged in the direction of the first direction axis DR1. Different from what is shown in the drawings, the areas of the third light-emitting region PXA-B2 and the fourth light-emitting region PXA-W may be set to be substantially equal to the areas of the first light-emitting region PXA-R and the second light-emitting region PXA-G.

[0204] Fig.19 is with Fig.18 The display device DS-2 of the embodiment may include a display panel DP, a color conversion layer CCL-2 on the display panel DP, a light blocking layer BML on the display panel DP, and a color filter layer CFL-2 on the color conversion layer CCL-2.

[0205] The display panel DP may be configured to provide the first color light. The display panel DP may be configured to provide blue light as the first color light to the color conversion layer CCL-2.

[0206] The color conversion layer CCL-2 may further include a fifth color conversion portion CCL5 in addition to the first color conversion portion CCL1, the second color conversion portion CCL2, and the third color conversion portion CCL3. The first color conversion portion CCL1 may be configured to convert the wavelength of the first color light and emit red light as the second color light, and the second color conversion portion CCL2 may be configured to convert the wavelength of the first color light and emit green light as the third color light. The third color conversion portion CCL3 may be configured to transmit the first color light to emit blue light.

[0207] The fifth color conversion portion CCL5 may be configured to emit white light. For example, the fifth color conversion portion CCL5 may include red and green quantum dots that convert the wavelength of blue light as the first color light.

[0208] The color filter layer CFL-2 may include a fifth filter CF5. For example, the fifth filter CF5 may be a transparent filter. The fifth filter CF5 may include a fifth main filter portion CF5-M and a fifth light blocking filter portion CF5-B. The fifth filter CF5 may be configured to transmit white light provided from the fifth color conversion portion CCL5. The same contents as those described with reference to the display device DS of the embodiment may be applied to the first filter CF1, the second filter CF2, and the third filter CF3.

[0209] In separate reference Figure 2 , Fig.17 and Fig.18 In the display device DS, the display device DS-1, and the display device DS-2 according to the described embodiments, each of the first light emitting region PXA-R, the second light emitting region PXA-G, the third light emitting region PXA-B, the first light emitting region PXA-R1, the second light emitting region PXA-G1, the third light emitting region PXA-B1, the third light emitting region PXA-B2, and the fourth light emitting region PXA-W is shown to have a quadrilateral shape. However, the embodiments of the present disclosure are not limited thereto. The shape of each of the light emitting regions may be modified and set in various suitable ways.

[0210] Respectively Figure 2 , Fig.17 and Fig.18 In the display device DS, the display device DS-1, and the display device DS-2 according to the embodiment, the light emitting area emitting light of the same color in each of the first light emitting area PXA, the first light emitting area PXA-1, and the first light emitting area PXA-2 is shown as having a stripe shape. However, the embodiments of the present disclosure are not limited thereto. Each light emitting area PXA can be arranged in a pentile structure.

[0211] The display device of the embodiment includes a color filter layer on the display panel, and some color filters in the color filter layer are exposed in a portion of a non-luminous area, thereby showing improved display quality. The display device of the embodiment includes a light blocking layer having a main opening portion and a sub-opening portion, the main opening portion is defined to correspond to the luminous area, and the sub-opening portion is defined to correspond to a portion of the non-luminous area to expose a portion of the color filter layer in the portion of the non-luminous area, thereby adjusting the color sense of reflected light caused by external light.

[0212] In addition, the display device of the embodiment adjusts the area of ​​the color filter layer exposed in the non-light emitting area to adjust the reflection color sense without changing the method for driving the display panel, thereby being able to exhibit excellent display quality.

[0213] The display device of the embodiment can display an improved reflective color sense by exposing a portion of the color filter layer in the non-light emitting region.

[0214] The display device of the embodiment can also display a neutral color sense by defining an opening portion in the light blocking layer corresponding to the non-display area to include a color filter that does not overlap the light blocking portion in the non-light emitting area.

[0215] As used herein, the terms "substantially," "approximately," and similar terms are used as terms of approximation and not as terms of degree, and are intended to account for inherent deviations in measurements or calculations that would be recognized by one of ordinary skill in the art. In addition, when describing embodiments of the present disclosure, the use of "may" refers to "one or more embodiments of the present disclosure." As used herein, the term "using" may be considered synonymous with "utilizing." In addition, the term "exemplary" is intended to indicate an example or illustration.

[0216] In addition, any numerical range described herein is intended to include all sub-ranges of the same numerical precision contained within the described range. For example, the range "1.0 to 10.0" is intended to include all sub-ranges between (and including) the described minimum value 1.0 and the described maximum value 10.0, that is, having a minimum value equal to or greater than 1.0 and a maximum value equal to or less than 10.0, such as 2.4 to 7.6. Any maximum numerical limit described herein is intended to include all smaller numerical limits contained therein, and any minimum numerical limit stated in this specification is intended to include all larger numerical limits contained therein. Therefore, the applicant reserves the right to amend this specification (including the claims) to explicitly state any sub-ranges contained within the range explicitly described herein.

[0217] Although the subject matter of the present disclosure has been described with reference to certain embodiments thereof, workers skilled in the art will recognize that various changes in form and details may be made therein without departing from the spirit and scope of the present disclosure.

[0218] Therefore, the technical scope of the present disclosure is not intended to be limited to the contents set forth in the detailed description of the specification, but is intended to be defined by the appended claims and their equivalents.

Claims

1. A display device, comprising: A display panel comprising a light-emitting area and a non-light-emitting area adjacent to the light-emitting area; A color conversion layer, located on the display panel; a light blocking layer located on the display panel, wherein a main opening portion corresponds to the light emitting area, and a sub-opening portion corresponds to the non-light emitting area, and the main opening portion and the sub-opening portion are defined at the light blocking layer; as well as A color filter layer is located on the color conversion layer, wherein: The color filter layer includes: a main filter portion corresponding to the main opening portion; a sub-filter portion corresponding to the sub-opening portion; and a light blocking filter portion corresponding to the non-luminous area and not overlapping with the sub-opening portion and completely overlapping with the light blocking layer.

2. The display device according to claim 1, wherein: The display panel includes an organic electroluminescent device configured to emit a first color light.

3. The display device according to claim 2, wherein: The color conversion layer comprises: A first color conversion portion including first quantum dots configured to convert the first color light into a second color light; A second color conversion portion including second quantum dots configured to convert the first color light into a third color light; and The third color conversion portion is configured to transmit the first color light.

4. The display device according to claim 3, wherein: The color filter layer comprises: a first filter configured to transmit the second color light; a second filter configured to transmit the third color light; and A third filter configured to transmit the first color light, wherein each of the first filter, the second filter, and the third filter comprises: the main filter portion and the light blocking filter portion, and At least one selected from the first filter, the second filter, and the third filter further includes the sub-filter portion.

5. The display device according to claim 4, wherein: The first color light is blue light, the second color light is red light, and the third color light is green light, and The first filter and the third filter include the sub-filter portion, but the second filter does not include the sub-filter portion.

6. The display device according to claim 4, wherein: The third color conversion portion and the third filter are integrally provided.

7. The display device according to claim 3, wherein: The first color conversion portion and the third color conversion portion further include a scattering agent.

8. The display device according to claim 3, wherein: The color filter layer comprises: a third filter overlapping the third color conversion portion and configured to transmit the first color light; and A fourth filter overlaps the first color conversion portion and the second color conversion portion and is configured to transmit fourth color light.

9. The display device according to claim 1, wherein: The light blocking layer is located between the display panel and the color filter layer.

10. The display device according to claim 1, wherein: The light blocking layer is on the color conversion layer, and the color filter layer covers the light blocking layer.

11. The display device according to claim 1, wherein: The color filter layer is located directly on the color conversion layer.

12. A display device, comprising: a light emitting area, a reflective area and a light blocking area, wherein the reflective area is spaced apart from the light emitting area on a plane, and the light blocking area surrounds the light emitting area and the reflective area, and the display device further comprises: Display panel including organic electroluminescent device; a color conversion layer located on the display panel and including a plurality of color conversion portions positioned to correspond to the light emitting areas; a color filter layer located on the color conversion layer and comprising a plurality of filters; and a light blocking layer located on the display panel and including a light blocking portion overlapping the light blocking area but not overlapping the light emitting area and the reflective area, Wherein, at least one of the plurality of filters includes a main filter portion overlapping the light emitting area, a light blocking filter portion completely overlapping the light blocking portion, and a sub-filter portion overlapping the reflective area.

13. The display device according to claim 12, wherein: The light emitting area includes: a red light emitting region, a green light emitting region, and a blue light emitting region, and The reflection area includes a red reflection area and a blue reflection area.

14. The display device according to claim 12, wherein: The light emitting area includes: A plurality of red light emitting regions, a plurality of green light emitting regions and a plurality of blue light emitting regions, wherein: The plurality of red light emitting regions, the plurality of green light emitting regions, and the plurality of blue light emitting regions are alternately arranged in a first direction, and Each of the plurality of red light emitting regions, the plurality of green light emitting regions, and the plurality of blue light emitting regions is arranged in a second direction crossing the first direction.

15. The display device according to claim 14, wherein: The reflection area includes: a red reflective region located between the plurality of red light emitting regions arranged in the second direction; and The blue reflection area is located between the plurality of blue light emitting areas arranged in the second direction.

16. The display device according to claim 13, wherein: The organic electroluminescent device is configured to emit blue light, and the plurality of color conversion sections include: a first color conversion portion, located to correspond to the red light emitting region and comprising red quantum dots; a second color conversion portion located to correspond to the green light emitting region and including green quantum dots; and The third color conversion portion is positioned to correspond to the blue light emitting area.

17. The display device according to claim 13, wherein: The plurality of filters include: A red filter, overlapping the red light emitting area and the red reflecting area; A green filter overlapping the green light emitting region; and A blue filter is overlapped with the blue light emitting area and the blue reflecting area.

18. The display device according to claim 13, wherein: On a plane, the area of ​​the red light-emitting region is larger than the area of ​​the green light-emitting region and the area of ​​the blue light-emitting region.

19. The display device according to claim 12, wherein: The ratio of the area of ​​the reflection region to the total area of ​​the light emitting region, the reflection region and the light blocking region is greater than 0% and less than or equal to 10%.

20. A display device, comprising: Display panel including organic electroluminescent device; a color conversion layer located on the display panel and including a plurality of color conversion portions spaced apart from each other on a plane; a light blocking layer located on the display panel and having a main opening portion overlapping the color conversion portion and a sub-opening portion not overlapping the color conversion portion; as well as a color filter layer located on the color conversion layer and comprising a plurality of filters, wherein: Each of the plurality of filters includes a main filter portion overlapping the main opening portion and a light blocking filter portion adjacent to the main filter portion and not overlapping the sub-opening portion but completely overlapping the light blocking layer; and At least one of the plurality of filters further includes a sub-filter portion adjacent to the light blocking filter portion and spaced apart from the main filter portion.

Images