Electronic Devices

Abstract

The electronic device includes: a light source member configured to provide a first light; a color conversion member disposed on the light source member and including a first conversion material that converts the first light into a second light and a second conversion material that converts the first light into a third light; and a low refractive index layer disposed on the light source member and disposed on at least one of an upper portion and a lower portion of the color conversion member. The low refractive index layer includes: a matrix component; a plurality of hollow inorganic particles dispersed in the matrix component; and a plurality of void components defined by the matrix component.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Korean Patent Application No. 10-2018-0108387, filed on September 11, 2018, the disclosure of which is incorporated herein by reference in its entirety. Technical Field

[0003] Exemplary embodiments of the inventive concept relate to electronic devices, and more particularly, to electronic devices including a low refractive index layer. Background Art

[0004] Various electronic devices are being developed for providing image information in multimedia devices such as televisions, mobile phones, tablet computers, navigation equipment, or game consoles, etc. In particular, quantum dots are being introduced to improve display quality in electronic devices including liquid crystal display devices, organic electroluminescent display devices, etc.

[0005] In order to further improve light efficiency in electronic devices using quantum dots, optical components using low refractive index materials are being used. Summary of the invention

[0006] Exemplary embodiments of the present inventive concept provide an electronic device including a low refractive index layer including hollow inorganic particles and a void part that can provide good low refractive properties while improving strength.

[0007] Exemplary embodiments of the present inventive concept also provide an electronic device in which a low refractive index layer having high strength is provided on a display member, the low refractive index layer improving reliability and optical characteristics.

[0008] According to an exemplary embodiment, an electronic device includes: a light source member configured to provide a first light; a color conversion member disposed on the light source member and including a first conversion material that converts the first light into a second light and a second conversion material that converts the first light into a third light; and a low refractive index layer disposed on the light source member and disposed on at least one of an upper portion and a lower portion of the color conversion member. The low refractive index layer includes: a matrix component; a plurality of hollow inorganic particles dispersed in the matrix component; and a plurality of void components defined by the matrix component.

[0009] In an exemplary embodiment, each of the hollow inorganic particles includes a core part filled with air and a shell part surrounding the core part.

[0010] In an exemplary embodiment, the shell member includes SiO 2 MgF 2 and Fe3 O 4 At least one of .

[0011] In an exemplary embodiment, the interstitial features have a spherical shape and an average diameter of about 1 nm to about 5 nm.

[0012] In exemplary embodiments, the hollow inorganic particles have a spherical shape and an average diameter of about 20 nm to about 200 nm.

[0013] In an exemplary embodiment, the matrix member includes at least one of an acrylic polymer, a polysiloxane polymer, a urethane polymer, and an imide polymer.

[0014] In an exemplary embodiment, the low refractive index layer has a transmittance of about 95% or more within a wavelength of about 400 nm to about 700 nm, and has a refractive index of about 1.1 to about 1.5 at a wavelength of about 632 nm.

[0015] In an exemplary embodiment, the first light is blue light, the first conversion material is a first quantum dot that converts the blue light into green light, and the second conversion material is a second quantum dot that converts the blue light into red light.

[0016] In an exemplary embodiment, the electronic device further includes a display element disposed on the color conversion member.

[0017] In an exemplary embodiment, the display element includes a liquid crystal element.

[0018] In an exemplary embodiment, the light source member includes a guide panel and a light source disposed at one side of the guide panel. The low refractive index layer is disposed between the guide panel and the color conversion member.

[0019] In an exemplary embodiment, the low refractive index layer is disposed directly on the guide panel.

[0020] In an exemplary embodiment, the electronic device further includes a barrier layer disposed on at least one of the top surface and the bottom surface of the color conversion member.

[0021] In an exemplary embodiment, the color conversion member includes a plurality of color conversion components spaced apart from each other on a plane. The plurality of color conversion components include: a first color conversion component including a first conversion material; a second color conversion component including a second conversion material; and a third color conversion component configured to transmit the first light.

[0022] In an exemplary embodiment, the color conversion member further includes a light blocking part disposed between the first to third color conversion parts that are spaced apart from each other.

[0023] In an exemplary embodiment, the electronic device further includes a reflective layer disposed on at least one of the upper and lower portions of the plurality of color conversion members. The reflective layer transmits the first light and reflects the second and third lights.

[0024] In an exemplary embodiment, the low refractive index layer is disposed between the reflective layer and the plurality of color conversion components and covers the plurality of color conversion components.

[0025] In an exemplary embodiment, the reflective layer is disposed between the low refractive index layer and the plurality of color conversion components and covers the plurality of color conversion components.

[0026] In an exemplary embodiment, the color conversion member further includes a barrier layer disposed on at least one of the upper and lower portions of the plurality of color conversion components.

[0027] In an exemplary embodiment, the barrier layer is disposed between the low refractive index layer and the plurality of color conversion components and covers the plurality of color conversion components.

[0028] In an exemplary embodiment, the color conversion member further includes an optical filter layer configured to transmit at least one of the second light and the third light.

[0029] In an exemplary embodiment, the optical filter layer includes a first optical filter layer disposed on the first color conversion component and a second optical filter layer disposed on the second color conversion component.

[0030] In an exemplary embodiment, the first optical filter layer transmits green light, and the second optical filter layer transmits red light.

[0031] In an exemplary embodiment, the electronic device further includes: a first base substrate disposed on the light source member; a second base substrate disposed on the light source member and facing the first base substrate; and a liquid crystal layer disposed between the first base substrate and the second base substrate on the light source member. The color conversion member is disposed between the liquid crystal layer and the second base substrate.

[0032] In exemplary embodiments, the low refractive index layer is disposed between the liquid crystal layer and the color conversion member or between the color conversion member and the second base substrate.

[0033] In an exemplary embodiment, the electronic device further includes: a first polarizing layer, which is arranged between the light source component and the first base substrate or between the first base substrate and the liquid crystal layer; and a second polarizing layer, which is arranged between the liquid crystal layer and the second base substrate.

[0034] In an exemplary embodiment, the light source member includes an organic electroluminescent element.

[0035] In an exemplary embodiment, the color conversion member further includes a dam part which separates the plurality of color conversion parts from each other and is disposed between adjacent ones of the plurality of color conversion parts.

[0036] In an exemplary embodiment, the color conversion member further includes a color filter layer disposed on the plurality of color conversion components. The color filter layer includes: a plurality of filter components configured to emit light having various colors; and a light blocking component configured to separate the filter components from each other and disposed between adjacent filter components of the filter components.

[0037] According to an exemplary embodiment, an electronic device includes: a light source member configured to provide a first light; a color conversion member disposed on the light source member and including a first conversion material that converts the first light into a second light and a second conversion material that converts the first light into a third light; and a low refractive index layer disposed on the light source member and disposed on at least one of an upper portion and a lower portion of the color conversion member. The low refractive index layer includes: a matrix component; a plurality of hollow inorganic particles dispersed in the matrix component and including a plurality of first voids; and a plurality of second voids defined by the matrix component. The average diameter of the first voids is greater than the average diameter of the second voids.

[0038] In an exemplary embodiment, the low refractive index layer includes a plurality of first voids and a plurality of second voids, and a first volume that is a sum of volumes of the first voids is greater than a second volume that is a sum of volumes of the second voids.

[0039] According to an exemplary embodiment, an electronic device includes: a display element; a guide panel disposed below the display element; a light source member disposed adjacent to at least one surface of the guide panel; a color conversion member disposed between the guide panel and the display element; and a low refractive index layer disposed between the guide panel and the color conversion member. The low refractive index layer includes: a matrix component; a plurality of hollow inorganic particles dispersed in the matrix component; and a plurality of void components defined by the matrix component.

[0040] In an exemplary embodiment, the light source member includes a light emitting element configured to emit blue light. The color conversion member includes green quantum dots excited by the blue light to emit green light, and red quantum dots excited by at least one of the blue light and the green light to emit red light.

[0041] In an exemplary embodiment, each of the hollow inorganic particles includes a core part filled with air and a shell part defining the core part, and an average diameter of the core part is greater than an average diameter of the void part. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The above and other features of the inventive concept will become more apparent by describing in detail exemplary embodiments thereof with reference to the accompanying drawings, in which:

[0043] Figure 1 is an exploded perspective view of an electronic device according to an exemplary embodiment of the inventive concept.

[0044] Figure 2 is an exploded perspective view of a display member according to an exemplary embodiment of the present inventive concept.

[0045] Figure 3 is a cross-sectional view of a low refractive index layer according to an exemplary embodiment of the present inventive concept.

[0046] Figure 4 is a flowchart illustrating a method of manufacturing a low refractive index layer according to an exemplary embodiment of the present inventive concept.

[0047] Figures 5A to 5C 2 is a view explaining a process in a method of manufacturing a low refractive index layer according to an exemplary embodiment of the present inventive concept.

[0048] Figure 6 yes Figure 2 A cross-sectional view of a portion along line II'.

[0049] Figure 7 It is an interpretation Figure 6 A cross-sectional view of region BB.

[0050] Figure 8 is an exploded perspective view of a display member according to an exemplary embodiment of the present inventive concept.

[0051] Fig. 9 is a plan view of a color conversion member according to an exemplary embodiment of the present inventive concept.

[0052] Fig.10 It is an interpretation of the correspondence Figure 8 A cross-sectional view of a portion taken along line II-II'.

[0053] Fig.11 It is an interpretation Fig.10 Cross-sectional view of region CC.

[0054] Fig.12 is to explain an exemplary embodiment according to the present inventive concept Fig.11 Cross-sectional view of region CC.

[0055] Fig.13 is an exploded perspective view of a display member according to an exemplary embodiment of the present inventive concept.

[0056] Fig.14 It is an interpretation of the correspondence Fig.13 A cross-sectional view of a portion taken along line III-III'.

[0057] Fig.15 It is an interpretation Fig.14 Cross-sectional view of region EE.

[0058] Fig.16 is to explain an exemplary embodiment according to the present inventive concept Fig.15 Cross-sectional view of region EE.

[0059] Fig.17 is to explain an exemplary embodiment according to the present inventive concept Fig.15 Cross-sectional view of region EE.

[0060] Fig.18A is a graph illustrating results obtained by evaluating the durability of low refractive index layers according to comparative examples and exemplary embodiments of the present inventive concepts.

[0061] Fig.18B is a graph illustrating results obtained by measuring refractive index values ​​of low refractive index layers according to Comparative Examples and exemplary embodiments of the present inventive concepts.

[0062] Fig.19A and 19B are images illustrating results obtained by evaluating the durability of low refractive index layers according to comparative examples and exemplary embodiments of the present inventive concepts.

[0063] Fig. 20A and 20B : are graphs respectively illustrating results obtained by evaluating moisture permeability of low refractive index layers according to a comparative example and an exemplary embodiment of the present inventive concept. DETAILED DESCRIPTION

[0064] Exemplary embodiments of the inventive concept will be described more fully hereinafter with reference to the accompanying drawings.Throughout the drawings, like reference numerals may refer to like elements.

[0065] It should be understood that when a component, such as a film, region, layer, or element, is referred to as being "on," "connected to," "coupled to," or "adjacent to" another component, it can be directly on, connected to, coupled to, or adjacent to the other component, or there can be intervening components. It should also be understood that when a component is referred to as being "between" two components, it can be the only component between the two components, or there can also be one or more intervening components. It should also be understood that when a component is referred to as "overlying" another component, it can be the only component that overlies the other component, or one or more intervening components can also overlie the other component.

[0066] Herein, the term "directly disposed" may mean that there is no intermediate layer, film, region, plate, etc. between one layer, film, region, plate, etc. and another layer, film, region, plate, etc. For example, "directly disposed" may mean disposed between two layers or two members without using an additional member such as an adhesive member.

[0067] It should be understood that the terms "first", "second", or "third", etc. are used herein to distinguish one element from another element, and the elements are not limited by these terms. Therefore, a "first" element in one exemplary embodiment may be described as a "second" element in another exemplary embodiment. In addition, terms in the singular form may include plural forms unless otherwise indicated.

[0068] For ease of description, spatially relative terms, such as "below", "below", "below", "beneath", "above", or "on" and the like may be used herein to describe the relationship of an element or feature to another element (or elements) or feature (or features) as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figure is turned over, the elements described as being "below" or "below" or "below" other elements or features will be oriented "above" the other elements or features. Therefore, the exemplary terms "below", "below", and "below" may include both above and below orientations. In addition, it should also be understood that when a layer is referred to as being "between" two layers, it may be the only layer between the two layers, or one or more intermediate layers may also be present.

[0069] As used herein, the term "about" or "approximately" includes the recited value and an average value within an acceptable range of deviation from the particular value, which average value is determined by one of ordinary skill in the art taking into account the measurement and the measurement-related errors (i.e., the limitations of the measurement system) of the referenced measurement and the particular quantity. For example, "about" may mean within one or more standard deviations as understood by one of ordinary skill in the art. In addition, it should be understood that although a parameter may be described herein as having "about" a certain value, according to exemplary embodiments, the parameter may be exactly a certain value or approximately a certain value within the measurement error as would be understood by one of ordinary skill in the art.

[0070] It should be understood that descriptions of features or aspects within each exemplary embodiment should typically be considered as available for other similar features or aspects in other exemplary embodiments, unless the context clearly dictates otherwise.

[0071] Hereinafter, a low refractive index layer and an electronic device including the same according to exemplary embodiments of the present inventive concept will be described with reference to the accompanying drawings.

[0072] Figure 1 is an exploded perspective view of an electronic device according to an exemplary embodiment of the inventive concept. Figure 2 is an exploded perspective view of a display member according to an exemplary embodiment of the present inventive concept. For example, Figure 2 According to an exemplary embodiment of the present invention Figure 1 1 is an exploded perspective view of a display member DP provided in an electronic device DS.

[0073] The electronic device DS according to the exemplary embodiment may include various elements activated according to an electrical signal, such as a display element, a touch element, or a detection element.The electronic device DS according to the exemplary embodiment may include a window member WP, a display member DP, and a receiving member HAU.

[0074] The electronic device DS according to the exemplary embodiment may be a display device including a display member DP and providing an image. For example, the electronic device DS according to the exemplary embodiment may be a liquid crystal display device or an organic electroluminescent display device.

[0075] exist Figure 1 In the following figures, the first direction axis DR1, the second direction axis DR2, and the third direction axis DR3 are explained. The direction axes described herein are relative concepts, and for ease of description, the direction of the third direction axis DR3 may be defined as a direction in which an image is provided to a user. The first direction axis DR1 and the second direction axis DR2 may be perpendicular to each other. The third direction axis DR3 may be a normal direction relative to a plane defined by the first direction axis DR1 and the second direction axis DR2. Figure 1 In the embodiment, a plane defined by the first direction axis DR1 and the second direction axis DR2 may be a display surface on which an image is provided.

[0076] In the electronic device DS according to the exemplary embodiment, the window member WP may be arranged on the display member DP. The window member WP may be made of a material including, for example, glass, sapphire or plastic. The window member WP may include a light-transmitting area TA that transmits an image provided from the display member DP; and a light-blocking area BA that is disposed adjacent to the light-transmitting area TA and does not transmit an image therethrough. The light-transmitting area TA may be disposed in a central portion of the electronic device DS on a plane defined by the first direction axis DR1 and the second direction axis DR2. The light-blocking area BA may be disposed at the periphery of the light-transmitting area TA and have a frame shape surrounding the light-transmitting area TA. However, the inventive concept is not limited thereto. For example, in the exemplary embodiment, the window member WP may include only the light-transmitting area TA, and the light-blocking area BA may be omitted. In addition, in the exemplary embodiment, the light-blocking area BA may be disposed only on at least one side of the light-transmitting area TA instead of surrounding the light-transmitting area TA.

[0077] and Figure 1 Differently, the window member WP may be omitted in the electronic device DS according to the exemplary embodiment.

[0078] In the electronic device DS according to the exemplary embodiment, the display member DP may be disposed under the window member WP. The display member DP may include a liquid crystal display element or an organic electroluminescent display element.

[0079] The surface of the display member DP displaying an image is defined as a display surface on a plane. The display surface includes a display area DA, where an image is displayed on the display surface; and a non-display area NDA, where no image is displayed. The display area DA may be defined at the center of the display member DP on a plane to overlap with the light-transmitting area TA of the window member WP.

[0080] The receiving member HAU may be disposed below the display member DP to receive the display member DP. The receiving member HAU may be disposed to cover the display member DP, thereby exposing the top surface as the display surface of the display member DP. In an exemplary embodiment, the receiving member HAU may cover the side and bottom surfaces of the display member DP and expose the entire top surface of the display member DP. In an exemplary embodiment, in addition to covering the side and bottom surfaces of the display member DP, the receiving member HAU may also cover a portion of the top surface.

[0081] refer to Figure 2 , according to the electronic device DS of the exemplary embodiment (reference Figure 1) may include a display member DP, and the display member may include a low refractive index layer LRL. The electronic device DS according to the exemplary embodiment may include: a light source member LP; a color conversion member CCP, the color conversion member CCP is disposed on the light source member LP; and a low refractive index layer LRL according to the exemplary embodiment, the low refractive index layer LRL is disposed between the light source member LP and the color conversion member CCP. The low refractive index layer LRL provided in the electronic device DS according to the exemplary embodiment may be a layer that converts a light path. For example, the low refractive index layer LRL may be used to extract light related to an adjacent layer or member.

[0082] The display member DP according to the exemplary embodiment provided in the electronic device DS according to the exemplary embodiment may include a light source member LP and a display element DD. The display member DP may include: a color conversion member CCP disposed on the light source member LP; and a low refractive index layer LRL disposed between the light source member LP and the color conversion member CCP.

[0083] In an exemplary embodiment, the low refractive index layer LRL may be disposed on the light source member LP and may be disposed on at least one of the upper and lower portions of the color conversion member CCP. In an exemplary embodiment, the low refractive index layer LRL may be directly disposed on the guide panel GP. For example, the low refractive index layer LRL may be in direct contact with the guide panel GP.

[0084] The light source member LP may include a light source unit LU and a guide panel GP. The light source unit LU may provide a first light. The light source unit LU may include a circuit board PB and a light emitting element LD disposed on the circuit board PB. The light source unit LU may also be referred to herein as a light source. In an exemplary embodiment, the light source unit LU is disposed at one side of the guide panel GP.

[0085] The circuit board PB may provide power to the mounted light emitting element LD. For example, the circuit board PB may provide a dimming signal and a driving voltage to the mounted light emitting element LD. The circuit board PB may include at least one insulating layer and at least one circuit layer. For example, the circuit board PB may be a metal base printed circuit board (MCPCB).

[0086] A plurality of light emitting elements LD may be disposed on the circuit board PB. The light emitting elements LD may emit light in response to a voltage supplied from the circuit board PB. Each of the light emitting elements LD may include a light emitting diode having a structure in which an n-type semiconductor layer, an active layer, and a p-type semiconductor layer are sequentially laminated, and emits light by recombination of electrons and holes when a driving voltage is applied.

[0087] In an exemplary embodiment, the plurality of light emitting elements LD may emit light having the same wavelength range. In contrast, in an exemplary embodiment, the light source unit LU may include a plurality of light emitting elements LD emitting light having wavelength ranges different from each other. In an exemplary embodiment, the light emitting element LD may emit first light having a center wavelength in a wavelength range of about 440 nm to about 460 nm. In an exemplary embodiment, the light emitting element LD may emit blue light.

[0088] The light source member LP may include a guide panel GP. The light source unit LU may be disposed on at least one side of the guide panel GP. The first light emitted from the light source unit LU may be incident on at least one side of the guide panel GP. Then, the first light may be guided in the guide panel GP and provided to the display element DD. For example, blue light emitted from the light source unit LU may be incident on the guide panel GP and transmitted to the color conversion member CCP. Thereafter, the light of converted wavelength may be provided from the color conversion member CCP to the display element DD.

[0089] exist Figure 2 In the exemplary embodiment, although one side of the guide panel GP adjacent to the light source unit LU has a cross section gradually inclined toward one side of the guide panel GP adjacent to the light source unit LU, the present inventive concept is not limited thereto.

[0090] The guide panel GP may be made of a material having high light transmittance in the visible light region. For example, the guide panel GP may be glass. Alternatively, the guide panel GP may be made of a transparent polymer resin such as polymethyl methacrylate (PMMA). In an exemplary embodiment, the guide panel GP may have a refractive index of about 1.4 to about 1.55.

[0091] Light emitted from the light emitting element LD may be incident on the guide panel GP. The emission pattern part CP may be further disposed on the bottom surface of the guide panel GP. The emission pattern part CP may be disposed on the bottom surface of the guide panel GP and have a shape that protrudes convexly toward the receiving member HAU. For example, the emission pattern part CP may have a lens shape that protrudes toward the receiving member HAU. However, the inventive concept is not limited thereto.

[0092] The emission pattern part CP may be made of a material having a refractive index different from that of the guide panel GP. The emission pattern part CP may transmit light incident from the light source unit LU to one side of the guide panel GP to the other side of the guide panel GP, or change the direction of the incident light so that light incident toward the bottom surface of the guide panel GP is transmitted toward the emission surface, which is the top surface of the guide panel GP. The emission pattern part CP may change the path of light provided to the bottom surface of the guide panel GP to allow the light to be emitted to the display element DD.

[0093] In the display member DP according to the exemplary embodiment, the low refractive index layer LRL may be disposed on the light source member LP. The low refractive index layer LRL may be disposed on the guide panel GP.

[0094] Figure 3 is a cross-sectional view of a low refractive index layer according to an exemplary embodiment of the present inventive concept. Figure 4 is a flowchart illustrating a method of manufacturing a low refractive index layer according to an exemplary embodiment of the present inventive concept. Figures 5A to 5C 2 is a view explaining a process in a method of manufacturing a low refractive index layer according to an exemplary embodiment of the present inventive concept.

[0095] Figure 3 is a cross-sectional view of a low refractive index layer LRL according to an exemplary embodiment of the present inventive concept. Figure 3 , the low refractive index layer LRL may include a matrix component MX, hollow inorganic particles HP and a void component VD. Figure 3 As shown in , the low refractive index layer LRL may include a plurality of hollow inorganic particles HP and a plurality of void parts VD.

[0096] A plurality of hollow inorganic particles HP may be dispersed throughout the matrix part MX, and a plurality of void parts VD may be defined by the matrix part MX. For example, the void parts VD may correspond to portions that are not filled with the matrix part MX.

[0097] The matrix component MX may include a polymer material. The matrix component MX may include at least one of an acrylic polymer, a polysiloxane polymer, a urethane polymer, and an imide polymer. For example, the matrix component MX may include a polymer material selected from an acrylic polymer, a polysiloxane polymer, a urethane polymer, and an imide polymer, or a combination of multiple polymer materials. In addition, the matrix component MX may include at least one of a siloxane polymer, a silsesquioxane polymer, an acrylic polymer substituted with a fluorine atom, a polysiloxane polymer substituted with a fluorine atom, a urethane polymer substituted with a fluorine atom, and an imide polymer substituted with a fluorine atom.

[0098] The matrix part MX can be made of, for example, an acrylic resin, a polysiloxane resin, a urethane resin, or an imide resin. The matrix part MX can be formed by curing a polymer resin, such as, for example, an acrylic resin, a polysiloxane resin, a urethane resin, or an imide resin, in a high temperature process or an ultraviolet treatment process.

[0099] In an exemplary embodiment, each of the hollow inorganic particles HP included in the low refractive index layer LRL may have a core-shell shape. In an exemplary embodiment, each of the hollow inorganic particles HP may have a spherical shape. Each of the hollow inorganic particles HP may include a core part CR and a shell part SL surrounding the core part CR. The core part CR may be defined by the shell part SL. For example, the shell part SL may surround the core part CR, and the core part CR may be defined by the inner wall of the shell part SL. In an exemplary embodiment, the entire inner space of the shell part SL defined by the inner wall of the shell part SL may correspond to the core part CR. The shell part SL may be a layer made of an inorganic material. The shell part SL may include, for example, SiO 2 MgF 2 and Fe 3 O 4 For example, in the low refractive index layer LRL according to the exemplary embodiment, the hollow inorganic particles HP may be hollow silica.

[0100] The shell component SL in each hollow inorganic particle HP may include a core component CR defined and composed of, for example, SiO 2 MgF 2 and Fe 3 O 4 The shell member SL may be provided on the outer surface of the shell member SL to allow the hollow inorganic particles HP to be uniformly dispersed in the matrix member MX without causing the hollow inorganic particles HP to aggregate.

[0101] The core part CR of the hollow inorganic particle HP may be filled with air. However, the inventive concept is not limited thereto. For example, in an exemplary embodiment, the core part CR may be filled with liquid or gas having a low refractive characteristic. In an exemplary embodiment, the core part CR may be a void defined by the shell part SL.

[0102] In an exemplary embodiment, the hollow inorganic particles HP may have a spherical shape. In addition, the cross section of each hollow inorganic particle HP may have a circular shape. The hollow inorganic particles HP may have an average diameter of about 20 nm to about 200 nm. Figure 3 , the diameter D of the hollow inorganic particle HP HP In exemplary embodiments, the hollow inorganic particles HP included in the low refractive index layer LRL may have an average diameter of about 20 nm to about 200 nm, which results in an improved / optimized thickness and refractive index value of the low refractive index layer LRL.

[0103] In the hollow inorganic particle HP, the shell member SL may have a thickness D of about 7 nm to about 10 nm. SL The shell member SL may have a thickness D of about 7 nm to about 10 nm. SL , to maintain the strength of the hollow inorganic particles HP while increasing / maximizing the volume of the core component CR.

[0104] In the hollow inorganic particle HP, the core part CR may be filled with air, or a low refractive index material may be included in the core part CR to control the refractive index of the low refractive index layer LRL. For example, the hollow inorganic particle HP may have a refractive index of about 1.0 to about 1.3.

[0105] In an exemplary embodiment, the low refractive index layer LRL may include a plurality of void parts VD. The void parts VD may be a portion defined by the matrix part MX. The matrix part MX may not be filled into the void parts VD. Therefore, each of the void parts VD may be empty. For example, each void part VD may be an empty space defined by the matrix part MX. Each void part VD may be a portion filled with air. Each void part VD filled with air may be a portion of the low refractive index layer LRL where the refractive index is reduced.

[0106] Each void part VD may be a space having a spherical shape. Figure 3 Each of the void features VD may have an average diameter D of about 1 nm to about 5 nm. VD In exemplary embodiments, the low refractive index layer LRL may include the void part VD and the hollow inorganic particles HP, and thus may have high durability while maintaining a low refractive index value.

[0107] In the low refractive index layer LRL according to the exemplary embodiment, each void part VD defined by the matrix part MX may be an open cell, and each core part CR defined by the shell part SL may be a closed cell.

[0108] The void part VD corresponding to the open pores may be a portion not filled with the matrix part MX, and the boundary of the void part VD may be defined by the matrix part MX. Here, in the exemplary embodiment, a separate boundary material for dividing the void part VD and the matrix part MX is not provided. In addition, in contrast, the core part CR corresponding to the closed pores may be the inner space of the hollow inorganic particle HP defined by the shell part SL.

[0109] In the low refractive index layer LRL including the hollow inorganic particles HP and the void parts VD according to the exemplary embodiment, the core parts CR as the holes provided by the hollow inorganic particles HP may be defined as the first voids, and the void parts VD may be defined as the second voids. For example, the low refractive index layer LRL according to the exemplary embodiment may include the hollow inorganic particles HP having the first voids and the void parts VD having the second voids.

[0110] In an exemplary embodiment, each of the first void and the second void may have a spherical shape. In an exemplary embodiment, the first void may have an average diameter greater than an average diameter of the second void. Figure 3 , the first gap may have a diameter D corresponding to the core component CR CR The diameter of the second gap may have an average diameter D corresponding to the gap part VD. VD The diameter of the hollow inorganic particle HP is D CR The diameter up to the innermost portion of the shell member SL may be indicated.

[0111] In the low refractive index layer LRL according to the exemplary embodiment, the total volume of the plurality of first voids may be greater than the total volume of the plurality of second voids. For example, the first volume, which is the sum of the volumes of the first voids, may be greater than the second volume, which is the sum of the volumes of the second voids. Therefore, in the exemplary embodiment, the total volume of the first voids provided by all the hollow inorganic particles HP may be greater than the total volume of the second voids provided by all the void parts VD.

[0112] The low refractive index layer LRL according to the exemplary embodiment may include all the first voids corresponding to the closed cells defined by the shell part SL and the second voids corresponding to the void part VD defined by the matrix part MX.

[0113] In the low refractive index layer LRL according to the exemplary embodiment, the void part VD may be made of a pore inducing material (e.g., a pore former). The low refractive index layer LRL according to the exemplary embodiment may be formed by mixing a polymer resin, a pore inducing material, and hollow inorganic particles HP, and then curing the polymer resin by a heat treatment process or an ultraviolet (UV) treatment process at a high temperature.

[0114] Figure 4 1 is a flowchart illustrating a method of manufacturing a low refractive index layer LRL according to an exemplary embodiment of the present inventive concept. The method of manufacturing a low refractive index layer LRL may include a process of mixing a polymer resin and a pore inducing material to manufacture a pre-coating solution (S100), a process of mixing hollow inorganic particles into the pre-coating solution to manufacture a coating solution (S200), and a process of performing a heat treatment after applying the coating solution (S300).

[0115] The process of manufacturing the pre-coating solution (S100) may be a process of mixing the polymer resin forming the matrix part MX with the pore inducing material forming the void part VD. The pre-coating solution may be a solution in which the polymer resin and the pore inducing material are blended, or a solution in which the polymer resin and the pore inducing material are polymerized in the form of a copolymer.

[0116] The polymer resin may include at least one of, for example, acrylic polymers, polysiloxane polymers, urethane polymers, and imide polymers. For example, the polymer resin may include a polymer material selected from acrylic polymers, polysiloxane polymers, urethane polymers, and imide polymers, or a combination of multiple polymer materials. The polymer resin may include at least one of, for example, siloxane polymers, silsesquioxane polymers, acrylic polymers substituted with fluorine atoms, polysiloxane polymers substituted with fluorine atoms, urethane polymers substituted with fluorine atoms, and imide polymers substituted with fluorine atoms. For example, the siloxane polymer may include an organically modified silicate or a polymer polycondensed with a silane monomer.

[0117] The pore-inducing material included in the pre-coating solution may be of a linear type or a dendrimer type.

[0118] For example, the linear pore-inducing material may be a material that can be composed of a chemical structure Represents a single molecule of hydrocarbon (x, y and n are each independently an integer of 1 or greater), branched poly(p-xylene), linear poly(p-phenylene), linear polybutadiene, branched polyethylene, polycarbonate, polyamideimide, polyphthalamide or polymethylstyrene, etc.

[0119] The dendrimer type pore inducing material may include a core part and a branch part bonded to the core part so as to be connected in a regular branched structure and have a shape that spreads outward. The core part of the dendrimer type pore inducing material may be, for example, cyclosiloxane, cyclodextrin, or benzene. In the dendrimer type pore inducing material, the chemical structure The hydrocarbon groups represented may be applied to the branched moieties.

[0120] For example, when the polymer resin and the pore-inducing material are provided in a blended state in the pre-coating solution, the polymer resin and the pore-inducing material may be in a mixed state without any chemical bonding.

[0121] For example, when the pre-coating solution is provided in a polymerized state in the form of a copolymer in the pre-coating solution, at least one of the above-mentioned pore inducing materials may be graft polymerized to at least one of the above-mentioned polymer resin materials. When the polymer resin and the pore inducing material are provided in a polymerized state in the form of a copolymer, the pore inducing material may be polymerized in the form of a bridge connecting the polymer resin materials to each other. When graft polymerized, the plurality of pore inducing materials bonded to the polymer resin through side chains may be the same or different from each other. When polymerized in the form of a bridge, the plurality of pore inducing materials connecting the polymer resin materials to each other may be the same or different from each other.

[0122] In the following chemical structures, A-1 and A-2 represent the case where a siloxane polymer is used as the polymer resin, and a pore inducing material is graft polymerized.

[0123] [A-1]

[0124]

[0125] [A-2]

[0126]

[0127] The following chemical structures B-1 and B-2 represent the case where a siloxane polymer is used as the polymer resin, and the pore inducing material is polymerized in the form of a bridge between the siloxane polymers.

[0128] [B-1]

[0129]

[0130] [B-2]

[0131]

[0132] Chemical structures A-1, A-2, B-1 and B-2 represent the case where a polymer resin and a pore inducing material are polymerized to be provided as a pre-coating solution. In the chemical structures A-1, A-2, B-1 and B-2, PG, PG1 and PG2 represent pore inducing materials, respectively.

[0133] refer to Figure 4 In the method of manufacturing a low refractive index layer, after performing a process of manufacturing a pre-coating solution (S100), a process of mixing hollow inorganic particles into the pre-coating solution to manufacture a coating solution (S200) may be performed. For example, a polymer resin, a pore-inducing material, and hollow inorganic particles may be included in the coating solution.

[0134] In an exemplary embodiment, Figure 4Differently, the process of manufacturing the pre-coating solution (S100) and the process of manufacturing the coating solution (S200) may be performed in the same process. For example, the polymer resin, the pore inducing material, and the hollow inorganic particles may be mixed with each other in the same process and provided as a coating solution. For example, in an exemplary embodiment, the process of manufacturing the pre-coating solution (S100) and the process of manufacturing the coating solution (S200) may be performed in the same process at substantially the same time.

[0135] For example, in the coating solution, the pore inducing material may be included in an amount of about 1 wt % to about 20 wt %, and the hollow inorganic particles may be included in an amount of about 10 wt % to about 60 wt % based on 100 wt % of the polymer resin.

[0136] When the content of the pore inducing material exceeds about 20 wt %, the ratio of the void parts in the low refractive index layer manufactured from the coating solution according to the exemplary embodiment may be relatively high, deteriorating the strength of the low refractive index layer. In addition, because the content of the pore inducing material in the coating solution is about 1 wt % or more, the void parts manufactured from the pore inducing material may be introduced into the low refractive index layer to appropriately maintain the content of the hollow inorganic particles so that the low refractive index layer manufactured thereafter has a low refractive index. For example, because the pore inducing material is used together with the hollow inorganic particles to maintain the low refractive index of the low refractive index layer, the void parts manufactured from the pore inducing material may be provided in the low refractive index layer to partially reduce the content of the hollow inorganic particles, thereby reducing the manufacturing cost.

[0137] Based on polymer resin, when the content of hollow inorganic particles in the coating solution is less than about 10wt%, the refractive index value of the low refractive index layer manufactured by the coating solution cannot be kept low. In addition, based on polymer resin, when the content of hollow inorganic particles exceeds about 60wt%, the haze value of the low refractive index layer manufactured by the coating solution may increase.

[0138] refer to Figure 4 In the method for manufacturing the low refractive index layer according to the exemplary embodiment, after the process for manufacturing the coating solution (S200) is performed, a process for applying the coating solution to heat-treat the applied coating solution (S300) may be performed. The application of the coating solution may be performed by various methods such as, for example, slit coating, spin coating, roller coating, spray coating, or inkjet printing. The heat treatment of the coating solution may be performed at a temperature of about 150° C. to about 250° C. The polymer resin may be heat-cured by the heat treatment process of the coating solution to form the matrix part MX. Here, the pore inducing material may be pyrolyzed and removed to form the void part VD.

[0139] Figures 5A to 5C 2 is a view explaining a method of manufacturing a low refractive index layer according to an exemplary embodiment of the present inventive concept. Figure 5AA process of providing the coating solution LRL-P1 on the guide panel GP is explained. Figure 5B A process of heat treating the provided coating solution LRL-P1 is explained. Figure 5C Explains the Figure 5A and 5B After the process, a state in which a low refractive index layer LRL is formed on the guide panel GP.

[0140] refer to Figure 5A , a coating solution LRL-P1 containing a polymer resin PR, a pore inducing material PG, and hollow inorganic particles HP may be provided on the guide panel GP.

[0141] Figure 5B Heat treatment explained Figure 5A The heat treatment may be performed at a temperature of about 150° C. to about 250° C. The pre-low refractive index layer LRL-P2 may be formed by heat-treating the coating solution LRL-P1. The pre-low refractive index layer LRL-P2 may represent a state in which the heat treatment is performed.

[0142] The polymer resin PR of the coating solution LRL-P1 may be cured by heat treatment to form a matrix part MX. The pore inducing material PG may be decomposed by heat treatment to form an empty void part VD. For example, the pore inducing material PG may be pyrolyzed under high temperature heat treatment conditions and exhaust gas GAS, and the void part VD defined by the matrix part MX may be provided at a portion including the pore inducing material PG therein. Figure 5C The state of the pre-low refractive index layer LRL-P2 after heat treatment is explained. Figure 5C In the embodiment of the present invention, the low refractive index layer LRL may be disposed on the guide panel GP and include a matrix part MX, a plurality of hollow inorganic particles HP dispersed in the matrix part MX, and a plurality of void parts VD defined by the matrix part MX.

[0143] like Figures 5A to 5C As shown in the embodiment of FIG. 1 , although a process of manufacturing the low refractive index layer LRL when the low refractive index layer LRL is disposed on the guide panel GP is described, the inventive concept is not limited thereto. For example, in an exemplary embodiment, the low refractive index layer LRL may be disposed on the upper or lower portion of the color conversion member CCP (see FIG. 1 ). Figure 2 ). In this case, you can refer to Figures 5A to 5C The described process provides a low refractive index layer LRL.

[0144] By reference Figure 4 and 5AThe low refractive index layer LRL manufactured by the method for manufacturing a low refractive index layer according to exemplary embodiments described in 5C may have a transmittance of about 95% or more within a wavelength of about 400nm to about 700nm and a refractive index of about 1.1 to about 1.5 at a wavelength of about 632nm.

[0145] By reference Figure 4 and 5A The low refractive index layer LRL manufactured by the method of manufacturing a low refractive index layer according to the exemplary embodiment described in FIGS. 5C to 5C may have a good low refractive index value and improved durability.

[0146] In the low refractive index layer LRL according to the exemplary embodiment, the void part VD may correspond to the pores formed by the pyrolysis of the pore inducing material PG. Therefore, although the void part VD is formed in the exemplary embodiment, even in Figure 4 and 5A After the process of manufacturing the low refractive index layer in 5C, the volume and thickness of the low refractive index layer are not reduced to maintain the dimensional safety and durability of the low refractive index layer LRL.

[0147] Referring to the exemplary embodiment Figure 3 , Figure 4 and 5A The low refractive index layer LRL described in 5C may include all hollow inorganic particles HP dispersed in the matrix part MX and the void part VD defined by the matrix part MX. Therefore, the internal strength and reliability characteristics may be improved while maintaining a low refractive index value.

[0148] Figure 6 is a cross-sectional view illustrating a portion of the display member DP according to an exemplary embodiment. Figure 6 It is along Figure 2 A cross-sectional view taken along line II'. Figure 7 It is an interpretation Figure 6 Detailed cross-sectional view of region BB.

[0149] refer to Figure 2 , Figure 6 and Figure 7 , the low refractive index layer LRL may be disposed on the guide panel GP. As a coating method for forming the low refractive index layer LRL, reference may be made to Figure 4 and Figure 5AThe method of forming the low refractive index layer LRL is not limited to this. For example, the low refractive index layer LRL may be directly provided on the guide panel GP by various methods such as, for example, a transfer method. For example, the low refractive index layer LRL may be directly applied to the guide panel GP by various coating methods, or may be manufactured in a separate process by various coating methods and then provided on the guide panel GP by using a transfer method.

[0150] The low refractive index layer LRL may have a refractive index smaller than that of the guide panel GP. The low refractive index layer LRL may have a refractive index smaller than that of the color conversion member CCP disposed on the low refractive index layer LRL. The difference between the refractive index of the low refractive index layer LRL and the refractive index of the guide panel GP may be equal to or greater than about 0.2. The low refractive index layer LRL may have a refractive index smaller than that of the guide panel GP. Therefore, light incident from the light source unit LU to the guide panel GP may be effectively transferred to the other side of the guide panel GP relatively spaced apart from the light source unit LU.

[0151] A capping layer (not shown) may be further disposed on the low refractive index layer LRL. The capping layer may be a protective layer for protecting the low refractive index layer LRL. The capping layer may be an inorganic layer including, for example, at least one of silicon nitride, silicon oxide, and silicon oxynitride. The capping layer may be directly disposed on the low refractive index layer LRL. The capping layer may be provided as a single layer or multiple layers.

[0152] The color conversion member CCP may be disposed on the low refractive index layer LRL. The color conversion member CCP may include a first conversion material QD1 and a second conversion material QD2 disposed between the light emitting member LP and the display element DD. The color conversion member CCP may convert the wavelength of the first light provided from the light source unit LU. The color conversion member CCP may include a first conversion material QD1 that converts the wavelength of the first light into the second light, and a second conversion material QD2 that converts the wavelength of the first light into the third light. The display element DD may include a first substrate SUB1, a second substrate SUB2, and a liquid crystal layer LCL disposed between the first substrate SUB1 and the second substrate SUB2.

[0153] The color conversion member CCP may further include: a color conversion layer CCL including the first conversion material QD1 and the second conversion material QD2; and a barrier layer BL disposed on at least one of the top surface and the bottom surface of the color conversion layer CCL.

[0154] The barrier layer BL may prevent moisture and / or oxygen (hereinafter, referred to as moisture / oxygen) from penetrating. The barrier layer BL may be disposed on the color conversion layer CCL to prevent the color conversion layer CCL from being exposed to moisture / oxygen. The barrier layer BL may cover the color conversion layer CCL.

[0155] The barrier layer BL may include at least one inorganic layer. For example, the barrier layer BL may include an inorganic material. For example, the barrier layer BL may include at least one of silicon nitride, aluminum nitride, zirconium nitride, titanium nitride, hafnium nitride, silicon oxide, aluminum oxide, titanium oxide, tin oxide, cesium oxide, silicon oxynitride, and a metal thin film that ensures light transmittance. The barrier layer BL may further include an organic layer. The barrier layer BL may be a single layer or a multilayer.

[0156] The color conversion layer CCL may be directly disposed on the low refractive index layer LRL. In this case, the barrier layer BL may be omitted on the lower surface of the color conversion layer CCL. The low refractive index layer LRL may be used as a barrier layer on the bottom surface of the color conversion layer CCL. Figure 6 , the barrier layer BL may be disposed on the color conversion layer CCL and may cover the color conversion layer CCL. In an exemplary embodiment, the barrier layer BL may completely cover the color conversion layer CCL.

[0157] In an exemplary embodiment, the color conversion member CCP may include: a first conversion material QD1, which converts the first light wavelength provided from the light source unit LU into green light; and a second conversion material QD2, which converts the first light wavelength into red light. In an exemplary embodiment, the first light may be blue light, but is not limited thereto. In an exemplary embodiment, the second conversion material QD2 may be excited by the second light.

[0158] The first conversion material QD1 may be green quantum dots that are excited by blue light (first light) to emit green light (second light); and the second conversion material QD2 may be red quantum dots that are excited by green light (second light) to emit red light.

[0159] The quantum dot may be a particle that converts the wavelength of light provided from the light source unit LU. Each quantum dot may be a material having a crystal structure of a few nanometers in size. The quantum dot may be composed of hundreds to thousands of atoms to provide a quantum confinement effect in which the band gap increases due to the small size. When light with a wavelength having energy greater than the energy of the band gap is incident on the quantum dot, the quantum dot may absorb the light and thus be in an excited state and emit light with a specific wavelength, thereby becoming a ground state. The emitted light has energy corresponding to the band gap. When the size and composition of the quantum dot are adjusted, the luminescence characteristics caused by the quantum confinement effect can be adjusted. According to the particle size of the quantum dot, the quantum dot may change the color of the emitted light. As the particle size of the quantum dot decreases, light having a shorter wavelength region may be emitted. For example, a quantum dot emitting green light may have a particle size that is smaller than the particle size of a quantum dot emitting red light.

[0160] The quantum dots may be selected from, for example, Group II-VI compounds, Group III-V compounds, Group IV-VI compounds, Group IV elements, Group IV compounds, and combinations thereof.

[0161] The II-VI Group compounds may be selected from: binary element compounds selected from the group consisting of, for example, CdSe, CdTe, ZnS, ZnSe, ZnTe, ZnO, HgS, HgSe, HgTe, MgSe, MgS, and combinations thereof; binary element compounds selected from the group consisting of, for example, CdSeS, CdSeTe, CdSTe, ZnSeS, ZnSeTe, ZnSTe, HgSeS, HgSeTe, HgSTe, CdZnS, CdZnSe, CdZnTe, CdH Ternary element compounds selected from the group consisting of, for example, CdHgSe, CdHgTe, HgZnS, HgZnSe, HgZnTe, MgZnSe, MgZnS and combinations thereof; and quaternary element compounds selected from the group consisting of, for example, HgZnTeS, CdZnSeS, CdZnSeTe, CdZnSTe, CdHgSeS, CdHgSeTe, CdHgSTe, HgZnSeS, HgZnSeTe, HgZnSTe and combinations thereof.

[0162] The III-V Group compounds may be selected from: binary element compounds selected from the group consisting of, for example, GaN, GaP, GaAs, GaSb, AlN, AlP, AlAs, AlSb, InN, InP, InAs, InSb and combinations thereof; ternary element compounds selected from the group consisting of, for example, GaNP, GaNAs, GaNSb, GaPAs, GaPSb, AlNP, AlNAs, AlNSb, AlPAs, AlPSb, InNP, InNAs, InNSb, InPAs, InPSb and combinations thereof; and quaternary element compounds selected from the group consisting of, for example, GaAlNAs, GaAlNSb, GaAlPAs, GaAlPSb, GaInNP, GaInNAs, GaInNSb, GaInPAs, GaInPSb, InAlNP, InAlNAs, InAlNSb, InAlPAs, InAlPSb, GaAlNP and combinations thereof.

[0163] The IV-VI group compounds may be selected from: binary element compounds selected from the group consisting of, for example, SnS, SnSe, SnTe, PbS, PbSe, PbTe, and combinations thereof; ternary element compounds selected from the group consisting of, for example, SnSeS, SnSeTe, SnSTe, PbSeS, PbSeTe, PbSTe, SnPbS, SnPbSe, SnPbTe, and combinations thereof; and quaternary element compounds selected from the group consisting of, for example, SnPbSSe, SnPbSeTe, SnPbSTe, and combinations thereof. The IV group element may be selected from the group consisting of, for example, Si, Ge, and combinations thereof. The IV group compound may be a binary element compound selected from the group consisting of, for example, SiC, SiGe, and combinations thereof.

[0164] Here, the binary element compound, the ternary element compound, and the quaternary element compound may be present in the particle at a uniform concentration, or may be present in the particle in a state in which the concentration distribution is divided into partially different states.

[0165] The quantum dot may have a core-shell structure, which includes a shell surrounding a core. Alternatively, 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 elements present in the shell have a gradually decreasing concentration toward the center.

[0166] The quantum dot may be a particle having a nanometer-scale size. The quantum dot may have an emission wavelength spectrum having a full width at half maximum (FWHM) of about 45 nm or less. In an exemplary embodiment, the quantum dot may have an emission wavelength spectrum having a FWHM of about 40 nm or less, or about 30 nm or less. Within this range, color purity and color reproducibility may be improved. The light emitted by the quantum dot may be emitted in all directions to improve the optical viewing angle.

[0167] The quantum dot may have, for example, a spherical shape, a pyramidal shape, a multi-arm shape, a cubic nanoparticle shape, a nanotube shape, a nanowire shape, a nanofiber shape, or a nanoplate particle shape, etc. However, the shape of the quantum dot is not limited thereto.

[0168] In reference Figure 2 , Figure 6 and Figure 7 In the display member DP described, white light may be provided to the display element DD. In the display member DP according to the exemplary embodiment, light emitted from the light source unit LU, passing through the color conversion member CCP, and then provided to the display element DD may be white light. For example, blue light provided from the light source unit LU, green light emitted from the first conversion material QD1, and red light emitted from the second conversion material QD2 may be mixed with each other and provided to the display element DD.

[0169] The color conversion component CCP may include a first conversion material QD1, a second conversion material QD2, and a base resin BR. The base resin BR may be a medium in which the first conversion material QD1 and the second conversion material QD2 are dispersed. The base resin BR may include various resin components referred to as adhesives. However, the inventive concept is not limited thereto. Herein, a medium capable of dispersing the first conversion material QD1 and the second conversion material QD2 may be referred to as a base resin BR, regardless of its name, other functions, or constituent materials, etc. The base resin BR may be, for example, a polymer resin. For example, the base resin BR may include at least one of an acrylic resin, a urethane resin, a silicone resin, and an epoxy resin. The base resin BR may be a transparent resin.

[0170] The display member DP according to the exemplary embodiment may have good optical characteristics and improved durability because the low refractive index layer LRL having improved strength while maintaining a low refractive index is provided between the guide panel GP and the color conversion member CCP. For example, the electronic device DS including the display member DP according to the exemplary embodiment (see Figure 1 ) can have good optical characteristics and also have improved durability and reliability.

[0171] Figure 8 is an electronic device DS (see Figure 1 ) is a view of an embodiment of a display component provided in FIG. Fig. 9 It is an interpretation Figure 8 A plan view of a portion of a color conversion member provided in a display member. Fig.10 It is an interpretation of the correspondence Figure 8 A cross-sectional view of a portion taken along line II-II'. Fig.11 It is an interpretation Fig.10 Cross-sectional view of region CC. Fig.12 is to explain an exemplary embodiment according to the present inventive concept Fig.11 Cross-sectional view of region CC.

[0172] The display member DP-1 according to the exemplary embodiment may include: a first base substrate BS1 and a second base substrate BS2 facing each other; and a liquid crystal layer LCL disposed between the first base substrate BS1 and the second base substrate BS2 (see FIG. 2 ). Fig.10 ). For example, the display member DP-1 according to the exemplary embodiment may include a display element DD-1 on the light source member LP-1. The display element DD-1 may be a liquid crystal display element including a liquid crystal layer LCL disposed between first and second base substrates BS1 and BS2 facing each other.

[0173] refer to Figures 8 to 12, the display element DD-1 may include a color conversion member CCP-1. The color conversion member CCP-1 may be disposed on the liquid crystal layer LCL. The display element DD-1 may include: a first substrate SUB1 relatively adjacent to the light source member LP-1; a second substrate SUB2, the second substrate SUB2 facing the first substrate SUB1 and including the color conversion member CCP-1; and a liquid crystal layer LCL, the liquid crystal layer LCL disposed between the first substrate SUB1 and the second substrate SUB2.

[0174] The light source member LP-1 may be a backlight unit that provides light to the display element DD-1. For example, although in the exemplary embodiment, the light source member LP-1 includes a direct type backlight unit or an edge type backlight unit, the exemplary embodiments of the present inventive concept are not limited thereto. For example, the light source member LP-1 is not limited as long as the light source member LP-1 provides light to the display element DD-1.

[0175] In the display member DP-1 according to the exemplary embodiment, the light source member LP-1 may provide the first light to the display element DD-1. For example, the light source member LP-1 may provide the blue light to the display element DD-1.

[0176] The first substrate SUB1 may include a first base substrate BS1 and a circuit layer CL (see FIG. 1 ) disposed on the first base substrate BS1. Fig.10 ).

[0177] The first base substrate BS1 may be a member providing a base surface on which the circuit layer CL is disposed. The first base substrate BS1 may be, for example, a glass substrate, a metal substrate, or a plastic substrate. However, the inventive concept is not limited thereto. For example, in an exemplary embodiment, the first base substrate BS1 may be an inorganic layer, an organic layer, or a composite material layer.

[0178] In an exemplary embodiment, the circuit layer CL may be disposed on the first base substrate BS1, and the circuit layer CL may include a plurality of transistors. The transistors may include a control electrode, an input electrode, and an output electrode, respectively. For example, the circuit layer CL may include a switching transistor and a driving transistor, which are configured to drive the display element DD-1.

[0179] The display element DD-1 may further include a first polarization layer PL and a second polarization layer ICP. The first polarization layer PL may be included in the first substrate SUB1, and the second polarization layer ICP may be included in the second substrate SUB2. Figure 8 and Fig.10, the first polarizing layer PL according to the exemplary embodiment may be disposed on the bottom surface of the first base substrate BS1. However, the inventive concept is not limited thereto. For example, in the exemplary embodiment, the first polarizing layer PL may be disposed on the upper surface of the first base substrate BS1. In this case, the first polarizing layer PL may be disposed between the liquid crystal layer LCL and the first base substrate BS1.

[0180] The first polarizing layer PL may be provided as a separate member, or may include a polarizer formed by coating or deposition. The first polarizing layer PL may be formed, for example, by applying a material containing a dichroic dye and a liquid crystal compound. Alternatively, the first polarizing layer PL may include a wire grid type polarizer.

[0181] The second substrate SUB2 facing the first substrate SUB1 may include a second base substrate BS2, a color conversion member CCP-1, and a low refractive index layer LRL. The second substrate SUB2 may further include a reflective layer RP, a planarization layer OC, and a second polarization layer ICP.

[0182] The second base substrate BS2 may be a member providing a base surface on which the color conversion member CCP-1 is disposed. The second base substrate BS2 may be, for example, a glass substrate, a metal substrate, or a plastic substrate. However, the inventive concept is not limited thereto. For example, the second base substrate BS2 may be an inorganic layer, an organic layer, or a composite material layer.

[0183] In the display member DP-1 according to the exemplary embodiment, the color conversion member CCP-1 may include a plurality of color conversion parts CCL1, CCL2, and CCL3 spaced apart from each other on a plane. The color conversion parts CCL1, CCL2, and CCL3 may be parts of the color conversion layer CCL. The color conversion member CCP-1 may further include a light blocking part BM disposed between the color conversion parts CCL1, CCL2, and CCL3. Fig. 9 , the plurality of color conversion parts CCL1, CCL2, and CCL3 may be arranged to be spaced apart from each other on a plane defined by the first direction axis DR1 and the second direction axis DR2.

[0184] refer to Fig. 9 , the first to third color conversion parts CCL1, CCL2 and CCL3 emitting light having different colors from each other may be disposed in parallel to be spaced apart from each other in the direction of the first direction axis DR1, and the color conversion parts emitting light having the same color may be disposed in parallel to be spaced apart from each other. Fig. 9The arrangement of the first to third color conversion components CCL1, CCL2, and CCL3 according to the exemplary embodiment is explained. However, the inventive concept is not limited thereto. For example, in the exemplary embodiment, the first to third color conversion components CCL1, CCL2, and CCL3 may have different areas from each other or may be aligned in a Pentile structure.

[0185] The light blocking member BM may be disposed between the color conversion members CCL1, CCL2, and CCL3 disposed to be spaced apart from each other. The light blocking member BM may be a black matrix. The light blocking member BM may contain an organic light blocking material or an inorganic light blocking material including a black pigment or dye. The light blocking member BM may prevent light leakage from occurring and distinguish the boundaries between the color conversion members CCL1, CCL2, and CCL3 disposed adjacent to each other.

[0186] At least a portion of the light blocking part BM may be disposed to overlap the color conversion parts CCL1, CCL2, and CCL3 adjacent to each other. For example, at least a portion of the light blocking part BM may be disposed to overlap the color conversion parts CCL1, CCL2, and CCL3 adjacent to each other in a thickness direction of the light blocking part BM on a plane defined by the first direction axis DR1 and the third direction axis DR3.

[0187] In an exemplary embodiment, the color conversion member CCP-1 may include: a first conversion material QD1, which absorbs the first light to convert the first light wavelength into the second light; and a second conversion material QD2, which absorbs the first light to convert the first light wavelength into the third light. For example, the first light may be blue light, the second light may be green light, and the third light may be red light.

[0188] The above-mentioned exemplary embodiments Figure 6 and Figure 7 The description of the first conversion material QD1 and the second conversion material QD2 included in the color conversion member CCP of may be equally applicable to the first conversion material QD1 and the second conversion material QD2 included in the color conversion member CCP-1. For example, the first conversion material QD1 may be a green quantum dot, and the second conversion material QD2 may be a red quantum dot.

[0189] The color conversion component CCP-1 may include: a first color conversion component CCL1, the first color conversion component CCL1 includes a first conversion material QD1; a second color conversion component CCL2, the second color conversion component CCL2 includes a second conversion material QD2; and a third color conversion component CCL3, the third color conversion component CCL3 transmitting the first light. For example, the first conversion material QD1 may absorb the first light (blue light) to emit green light, and the second conversion material QD2 may absorb the first light (blue light) to emit red light. For example, the first color conversion component CCL1 may be a first emission region that emits green light, and the second color conversion component CCL2 may be a second emission region that emits red light.

[0190] The third color conversion part CCL3 may be a portion that does not include a conversion material. The third color conversion part CCL3 may be a portion that transmits the first light provided from the light source member LP-1. For example, the third color conversion part CCL3 may be a region that transmits blue light. The third color conversion part CCL3 may be made of, for example, a polymer resin. For example, the third color conversion part CCL3 may be made of at least one of an acrylic resin, a urethane resin, a polysiloxane resin, and an epoxy resin. The third color conversion part CCL3 may be made of, for example, a transparent resin or a white resin.

[0191] The first to third color conversion components CCL1, CCL2, and CCL3 may be disposed on the second base substrate BS2. The first to third color conversion components CCL1, CCL2, and CCL3 patterned on one surface of the second base substrate BS2 may be provided. The first to third color conversion components CCL1, CCL2, and CCL3 may be disposed on the bottom surface of the second base substrate BS2.

[0192] In the display member DP-1 according to the exemplary embodiment, the low refractive index layer LRL may be disposed between the light source member LP-1 and the color conversion member CCP-1. Figures 3 to 5C The description of the low refractive index layer LRL described above can also be applied to the low refractive index layer LRL described here. For example, the low refractive index layer LRL may include: a matrix component MX (see Figure 3 ); dispersed in the matrix component MX (see Figure 3 ) in a plurality of hollow inorganic particles HP (see Figure 3 ); and by the matrix component MX (see Figure 3 ) defined by the gap component VD (see Figure 3 The void component VD of the low refractive index layer LRL may be made of a hole-inducing material PG (see Figure 5A )manufacture.

[0193] In the display member DP-1 according to the exemplary embodiment, the low refractive index layer LRL may be disposed below the color conversion member CCP-1, and may convert the traveling direction of light emitted from the color conversion member CCP-1 to the lower side of the display member DP-1. For example, the low refractive index layer LRL may be disposed below the color conversion member CCP-1, and may perform a light extraction function of reflecting light emitted from the color conversion member CCP-1 again to allow the light to travel to the upper side of the display member DP-1. Therefore, the display member DP-1 according to the exemplary embodiment may have improved durability and light efficiency.

[0194] However, the inventive concept is not limited thereto. For example, in an exemplary embodiment, the low refractive index layer LRL may be disposed on the color conversion member CCP-1.

[0195] In the display member DP-1 according to the exemplary embodiment, the second substrate SUB2 may further include a reflective layer RP. The reflective layer RP may be disposed between the color conversion member CCP-1 and the liquid crystal layer LCL. The reflective layer RP may transmit the first light and reflect the second light and the third light. The reflective layer RP may be, for example, a selective transmission-reflection layer.

[0196] The reflective layer RP may transmit the first light provided from the light source member LP-1 and reflect the second light and the third light emitted from the color conversion parts CCL1, CCL2 and CCL3 of the color conversion member CCP-1 and traveling toward the lower side of the display member DP-1, thereby allowing the reflected light to be emitted to the upper side of the display member DP-1. The reflective layer RP may be provided as a single layer or a laminate in which a plurality of layers are laminated.

[0197] The reflective layer RP may include, for example, a plurality of insulating layers. Therefore, the transmission wavelength range and the reflection wavelength range of the reflective layer RP may be determined according to the refractive index difference between laminated layers, the thickness of each laminated layer, and the number of laminated layers.

[0198] The reflective layer RP according to the exemplary embodiment may include a first insulating layer and a second insulating layer having different refractive indices from each other. The reflective layer RP may include at least one first insulating layer and at least one second insulating layer. Each of the first insulating layer and the second insulating layer may be provided in a plurality of layers alternately laminated.

[0199] For example, a metal oxide material may be used as an insulating layer having a relatively high refractive index. The insulating layer having a high refractive index may include, for example, TiO x 、TaO x , HfO x and ZrO x The insulating layer having a relatively low refractive index may include, for example, SiO x and SiN xIn an exemplary embodiment, the reflective layer RP may be formed by alternately and repeatedly depositing SiN x and SiO x And formed.

[0200] refer to Fig.10 and Fig.11 , the reflective layer RP may be disposed below the low refractive index layer LRL. For example, the low refractive index layer LRL may be disposed between the reflective layer RP and the color conversion components CCL1, CCL2, and CCL3 to cover the color conversion components CCL1, CCL2, and CCL3.

[0201] However, the present invention is not limited thereto. Fig.12 As shown in , the reflective layer RP may be disposed on the low refractive index layer LRL. Fig.12 The color conversion member CCP-1a, the reflective layer RP and the low refractive index layer LRL may be sequentially disposed relative to the second base substrate BS2. For example, the reflective layer RP may be disposed between the low refractive index layer LRL and the color conversion members CCL1, CCL2 and CCL3 to cover the color conversion members CCL1, CCL2 and CCL3.

[0202] In an exemplary embodiment, the color conversion members CCP-1 and CCP-1a may further include optical filter layers FP1 and FP2 disposed on the color conversion layer CCL including the first to third color conversion parts CCL1, CCL2, and CCL3. The optical filter layers FP1 and FP2 may be included in the optical filter layer FP.

[0203] The optical filter layers FP1 and FP2 may be disposed on the color conversion layer CCL including the first to third color conversion components CCL1, CCL2, and CCL3 to block the first light and transmit the second light or the third light. For example, the optical filter layers FP1 and FP2 may block blue light and transmit green light or red light. In an exemplary embodiment, the optical filter layers FP1 and FP2 may be disposed on the first color conversion component CCL1 and the second color conversion component CCL2 and not on the third color conversion component CCL3.

[0204] The optical filter layers FP1 and FP2 may be provided as a single layer, or may have a shape in which a plurality of layers are laminated. For example, the optical filter layers FP1 and FP2 may be a single layer including a material that absorbs blue light, or the optical filter layers FP1 and FP2 may be a structure in which an insulating film having a low refractive index and an insulating film having a high refractive index are laminated, like the reflective layer RP.

[0205] The optical filter layers FP1 and FP2 may include a pigment or a dye to block light having a specific wavelength. For example, in an exemplary embodiment, each of the optical filter layers FP1 and FP2 may be a yellow color filter layer that absorbs blue light to block the blue light.

[0206] The optical filter layers FP1 and FP2 may include: a first optical filter layer FP1 disposed on the first color conversion component CCL1; and a second optical filter layer FP2 disposed on the second color conversion component CCL2. The first optical filter layer FP1 may be a filter layer that blocks blue light and transmits green light. The second optical filter layer FP2 may be a filter layer that blocks blue light and transmits red light.

[0207] The second substrate SUB2 may further include a planarization layer OC. In the second substrate SUB2, the reflective layer RP or the low refractive index layer LRL may be disposed around the unevenness of the color conversion parts CCL1, CCL2, and CCL3. For example, in the process of manufacturing the display member DP-1 according to the exemplary embodiment, after the color conversion parts CCL1, CCL2, and CCL3 are disposed on the second base substrate BS2, the reflective layer RP and the low refractive index layer LRL may be disposed on the color conversion parts CCL1, CCL2, and CCL3. Therefore, the reflective layer RP and the low refractive index layer LRL may be disposed along the unevenness of the color conversion layer CCL including the color conversion parts CCL1, CCL2, and CCL3, and the unevenness corresponding to the unevenness of each of the color conversion parts CCL1, CCL2, and CCL3 is formed. The planarization layer OC may be disposed below the reflective layer RP or the low refractive index layer LRL.

[0208] The planarization layer OC may be arranged to surround the unevenness of the reflective layer RP and the low refractive index layer LRL. The planarization layer OC may be arranged to fill the unevenness of the bottom surface of the reflective layer RP or the low refractive index layer LRL adjacent to the liquid crystal layer LCL to planarize the surface adjacent to the second polarization layer ICP.

[0209] The second polarizing layer ICP may be included in the second substrate SUB2. The second polarizing layer ICP may be disposed between the liquid crystal layer LCL and the color conversion member CCP-1. The second polarizing layer ICP may be an in-cell polarizer. The second polarizing layer ICP may be formed by applying a material containing a dichroic dye and a liquid crystal compound. Optionally, the second polarizing layer ICP may include a wire grid type polarizing layer.

[0210] Although in reference Figures 8 to 12In the electronic device and display member DP-1 described, the low refractive index layer LRL is disposed below the color conversion members CCP-1 and CCP-1a, but the inventive concept is not limited thereto. For example, in an exemplary embodiment, the low refractive index layer LRL may be disposed above the color conversion members CCP-1 and CCP-1a. The low refractive index layer LRL may be disposed above the color conversion components CCL1, CCL2, and CCL3 to improve the efficiency of light emitted outward.

[0211] Referring to the exemplary embodiment Figures 8 to 12 In the electronic device and the display member DP-1 described, a low refractive index layer LRL having a good low refractive index value and improved strength may be provided to improve durability. In addition, the low refractive index layer LRL may be provided above or below the color conversion members CCP-1 and CCP-1a to improve light extraction efficiency in the display member DP-1. For example, an electronic device DS (see FIG. 1 ) including the display member DP-1 according to the exemplary embodiment Figure 1 ) can have improved durability and reliability and also have superior optical efficiency.

[0212] Fig.13 is an electronic device DS (see Figure 1 ) is a view of an embodiment of a display component provided in FIG. Fig.14 It is along Fig.13 A cross-sectional view taken along line III-III'. Fig.15 It is an interpretation Fig.14 Cross-sectional view of region EE. Fig.16 and Fig.17 is to explain an exemplary embodiment according to the present inventive concept Fig.15 Cross-sectional view of region EE.

[0213] The display member DP-2 according to the exemplary embodiment may include: a light source member LP-2; a low refractive index layer LRL disposed on the light source member LP-2; and a color conversion member CCP-2 disposed on the low refractive index layer LRL. The display member DP-2 may include an electroluminescent display element.

[0214] In the display member DP-2 according to the exemplary embodiment, the light source member LP-2 may include an organic electroluminescent element OEL. The light source member LP-2 may include a first base substrate BS1, a circuit layer CL-2, and an encapsulation member TFE.

[0215] The first base substrate BS1 may provide a base surface on which the organic electroluminescent element OEL is disposed. The first base substrate BS1 may be, for example, a glass substrate, a metal substrate, or a plastic substrate. However, the inventive concept is not limited thereto. For example, in an exemplary embodiment, the first base substrate BS1 may be an inorganic layer, an organic layer, or a composite material layer.

[0216] The circuit layer CL-2 may be disposed on the first base substrate BS1, and the circuit layer CL-2 may include a plurality of transistors. The transistors may include a control electrode, an input electrode, and an output electrode, respectively. For example, the circuit layer CL-2 may include a switching transistor and a driving transistor configured to drive the organic electroluminescent element OEL.

[0217] The organic electroluminescent element OEL may be disposed on the circuit layer CL-2. The organic electroluminescent element OEL may include a first electrode EL1, a second electrode EL2, and a plurality of organic layers disposed between the first electrode EL1 and the second electrode EL2. The organic electroluminescent element OEL may include a hole transport region HTR, an emission layer EML, and an electron transport region ETR disposed between the first electrode EL1 and the second electrode EL2.

[0218] The organic electroluminescent element OEL may emit a first light. For example, the organic electroluminescent element OEL may emit blue light.

[0219] refer to Fig.14 In the display member DP-2 according to the exemplary embodiment, the light emitting layer EML of the organic electroluminescent element OEL may be provided as a common layer on the first base substrate BS1. However, the inventive concept is not limited thereto. For example, in the exemplary embodiment, the light emitting layer EML may be patterned. For example, the light emitting layer EML may be patterned by being separated from the pixel defining layer PDL. The light emitting layer EML may be patterned to correspond to each of the first to third color conversion components CCL1, CCL2, and CCL3.

[0220] The organic electroluminescent element OEL may be disposed on the encapsulation member TFE, and the encapsulation member TFE may be disposed on the second electrode EL2. The encapsulation member TFE may be disposed directly on the second electrode EL2. The encapsulation member TFE may be provided as a single layer or a laminate in which a plurality of layers are laminated. The encapsulation member TFE may be, for example, a thin film encapsulation layer. The encapsulation member TFE protects the organic electroluminescent element OEL. The encapsulation member TFE may cover the organic electroluminescent element OEL. The organic electroluminescent element OEL may be sealed by the encapsulation member TFE.

[0221] The encapsulation member TFE may include at least one organic layer and at least one inorganic layer. In the encapsulation member TFE, at least one inorganic layer and at least one organic layer may be alternately arranged. For example, the encapsulation member TFE may include an organic layer arranged between two inorganic layers. In the encapsulation member TFE, the inorganic layer may include an inorganic material such as, for example, aluminum oxide or silicon nitride, and the organic layer may include an acrylic organic material.

[0222] The color conversion member CCP-2 may be disposed on the light source member LP-2 including the organic electroluminescent element OEL. The low refractive index layer LRL may be disposed between the light source member LP-2 and the color conversion member CCP-2. Figures 3 to 5C The low refractive index layer LRL described above may also be applicable to the low refractive index layer LRL described herein. For example, the low refractive index layer LRL may include a matrix component MX (see Figure 3 ); dispersed in the matrix component MX (see Figure 3 ) in a plurality of hollow inorganic particles HP (see Figure 3 ); and by the matrix component MX (see Figure 3 ) defined by the gap component VD (see Figure 3 ). The void part VD of the low refractive index layer LRL may be made of a void inducing material PG.

[0223] In the display member DP-2 according to the exemplary embodiment, the low refractive index layer LRL may be disposed under the color conversion member CCP-2 to convert the traveling direction of light emitted from the color conversion member CCP-2 to the lower side of the display member DP-2. For example, the low refractive index layer LRL may be disposed under the color conversion member CCP-2 to perform a light extraction function of reflecting the light emitted from the color conversion member CCP-2 again, thereby allowing the light to travel to the upper side of the display member DP-2. Therefore, the display member DP-2 according to the exemplary embodiment may have improved durability and light efficiency.

[0224] However, the inventive concept is not limited thereto. For example, in an exemplary embodiment, the low refractive index layer LRL may be disposed on the color conversion member CCP-2.

[0225] In the display member DP-2 according to the exemplary embodiment, the color conversion member CCP-2 may include a plurality of color conversion parts CCL1, CCL2, and CCL3 spaced apart from each other on a plane. The color conversion member CCP-2 may further include a light blocking part BM disposed between the color conversion parts CCL1, CCL2, and CCL3. In the display member DP-2 according to the exemplary embodiment, the light blocking part BM may be disposed to correspond to the pixel defining layer PDL. For example, the light blocking part BM may be disposed in a position corresponding to a position where the pixel defining layer PDL is disposed.

[0226] The color conversion member CCP-2 may include a color conversion layer CCL including a plurality of color conversion parts CCL1, CCL2, and CCL3. Figures 1 to 12 The description of the color conversion components CCL1, CCL2 and CCL3, the light blocking component BM, and the first conversion material QD1 and the second conversion material QD2 provided in the described display components DP and DP-1 may be equally applicable to the color conversion components CCL1, CCL2 and CCL3, the light blocking component BM, and the first conversion material QD1 and the second conversion material QD2 described herein. For example, the color conversion component CCP-2 may include: a first conversion material QD1 that absorbs the first light to convert the first light wavelength into the second light; and a second conversion material QD2 that absorbs the first light to convert the first light wavelength into the third light. The color conversion component CCP-2 may include: a first color conversion component CCL1 that includes the first conversion material QD1; a second color conversion component CCL2 that includes the second conversion material QD2; and a third color conversion component CCL3 that transmits the first light.

[0227] The barrier layer BL may be further disposed between the low refractive index layer LRL and the color conversion layer CCL. The barrier layer BL may be disposed on at least one of the upper and lower portions of the color conversion layer CCL provided in the color conversion member CCP-2 to prevent the color conversion layer CCL from being exposed to moisture / oxygen. The barrier layer BL may cover the color conversion layer CCL. Figure 6 and Figure 7 The description of the barrier layer BL of the display member DP described above may also apply to the barrier layer BL described here. For example, the barrier layer BL may include at least one inorganic layer. The color conversion layer CCL may be directly disposed on the low refractive index layer LRL. In this case, the barrier layer BL may be omitted on the bottom surface of the color conversion layer CCL.

[0228] The display member DP-2 according to the exemplary embodiment may include a second base substrate BS2. The second base substrate BS2 may be a member that provides a base surface that faces the first base substrate BS1 and on which the color conversion member CCP-2 is disposed. The second base substrate BS2 may be, for example, a glass substrate, a metal substrate, or a plastic substrate. However, the inventive concept is not limited thereto. For example, in the exemplary embodiment, the second base substrate BS2 may be an inorganic layer, an organic layer, or a composite material layer.

[0229] Fig.16 is to explain the exemplary embodiment Fig.13 A cross-sectional view of an embodiment of a portion of a display member DP-2. For example, Fig.16 is to explain the exemplary embodiment Fig.15 Cross-sectional view of region EE.

[0230] refer to Fig.16 , the color conversion member CCP-2a according to the exemplary embodiment may be disposed on the low refractive index layer LRL and include a plurality of color conversion parts CCL1, CCL2, and CCL3 and an optical filter layer FP. The color conversion member CCP-2a may further include a light blocking part BM disposed between the color conversion parts CCL1, CCL2, and CCL3, and a baffle part DM. The baffle part DM may be disposed to overlap with the light blocking part BM and be disposed between the color conversion parts CCL1, CCL2, and CCL3.

[0231] The barrier member DM may be made of, for example, a polymer resin. For example, the barrier member DM may be formed by patterning an acrylic resin or an imide resin, etc. The barrier member DM may be patterned, and the spaces between the barrier members DM may be filled with the color conversion members CCL1, CCL2, and CCL3. For example, the barrier member DM may separate the color conversion members CCL1, CCL2, and CCL3 adjacent to each other from each other.

[0232] The optical filter layer FP may be disposed on the first color conversion component CCL1 and the second color conversion component CCL2. The optical filter layer FP may block the first light and transmit the second light and the third light. For example, the optical filter layer FP may block the blue light and transmit the green light or the red light. In an exemplary embodiment, the optical filter layer FP is disposed on the first color conversion component CCL1 and the second color conversion component CCL2, and is not disposed on the third color conversion component CCL3.

[0233] exist Fig.16 In the exemplary embodiment, with reference to the exemplary embodiment according to Fig.11 and Fig.12 Compared with the optical filter layers FP1 and FP2 provided in the color conversion member CCP-1 described above, the optical filter layer FP may be provided integrally on the first color conversion part CCL1 and the second color conversion part CCL2. The optical filter layer FP may be disposed to overlap with the first color conversion part CCL1, the second color conversion part CCL2, and the light blocking part BM disposed adjacent to the color conversion part. However, the inventive concept is not limited thereto. For example, in an exemplary embodiment, components of the optical filter layer FP may be disposed to be spaced apart from each other on a plane to correspond to each of the first color conversion part CCL1 and the second color conversion part CCL2.

[0234] exist Fig.16 In the exemplary embodiment of FIG. 5 , the reflective layer RP may be disposed between the low refractive index layer LRL and the color conversion member CCP-2a. Figures 8 to 12 The description of the reflective layer RP provided in the display member DP-1 described above may be equally applicable to the reflective layer RP described here. For example, the reflective layer RP disposed below the color conversion member CCP-2a according to the exemplary embodiment may transmit the first light provided from the light source member LP-2 and reflect the second light and the third light. The reflective layer RP is a selective transmission-reflection layer. Fig.16 Unlike the exemplary embodiment shown, in an exemplary embodiment, the low refractive index layer LRL may be directly disposed on the lower portion of each of the color conversion parts CCL1, CCL2, and CCL3. For example, the low refractive index layer LRL may be disposed between the reflective layer RP and the color conversion parts CCL1, CCL2, and CCL3.

[0235] Fig.17 is to explain the exemplary embodiment Fig.13 A cross-sectional view of an embodiment of a portion of a display member DP-2. For example, Fig.17 is to explain the exemplary embodiment Fig.15 Cross-sectional view of region EE.

[0236] refer to Fig.17 The color conversion member CCP-2b according to an exemplary embodiment may be disposed on the low refractive index layer LRL and may include: a color conversion layer CCL including a plurality of color conversion parts CCL1, CCL2, and CCL3; and a color filter layer CFL disposed on the color conversion layer CCL.

[0237] The color filter layer CFL may include a first filter part CCF1 overlapping the first color conversion part CCL1 ; a second filter part CCF2 overlapping the second color conversion part CCL2 ; and a third filter part CCF3 overlapping the third color conversion part CCL3 .

[0238] The color filter layer CFL may prevent reflection due to external light from occurring. In the color filter layer CFL, the first filter component CCF1 may be provided as a green filter, the second filter component CCF2 may be provided as a red filter, and the third filter component CCF3 may be provided as a blue filter. The first filter component CCF1 provided as a green filter, the second filter component CCF2 provided as a red filter, and the third filter component CCF3 provided as a blue filter may transmit light provided from the first color conversion component CCL1, the second color conversion component CCL2, and the third color conversion component CCL3, respectively, and block light other than the light provided from the corresponding color conversion components.

[0239] exist Fig.17 In an exemplary embodiment, the color conversion member CCP-2b may further include barrier layers BL-1 and BL-2 disposed above and below the color conversion components CCL1, CCL2, and CCL3, respectively. The barrier layers BL-1 and BL-2 may protect the color conversion components CCL1, CCL2, and CCL3. Figure 6 and Figure 7 The description of the barrier layer BL of the display member DP may be equally applicable to the barrier layers BL-1 and BL-2 described herein. For example, each of the barrier layers BL-1 and BL-2 may include at least one inorganic layer.

[0240] The first barrier layer BL-1 may be disposed between the low refractive index layer LRL and the color conversion parts CCL1, CCL2, and CCL3, and the second barrier layer BL-2 may be disposed between the color conversion parts CCL1, CCL2, and CCL3 and the color filter layer CFL. At least one of the first barrier layer BL-1 and the second barrier layer BL-2 may be omitted.

[0241] Although in reference Figures 13 to 17 In the electronic device and display member DP-2 described, the low refractive index layer LRL is disposed below the color conversion members CCP-2, CCP-2a, and CCP-2b, but the inventive concept is not limited thereto. For example, in an exemplary embodiment, the low refractive index layer LRL may be disposed above the color conversion members CCP-2, CCP-2a, and CCP-2b. The low refractive index layer LRL may be disposed above the color conversion members CCL1, CCL2, and CCL3 to improve the efficiency of light emitted outward.

[0242] Referring to the exemplary embodiment Figures 13 to 17In the electronic device and the display member DP-2 described above, a low refractive index layer LRL having improved strength may be provided to improve the durability of the electronic device and the display member DP-2. The low refractive index layer LRL may be disposed above or below the color conversion members CCP-2, CCP-2a, and CCP-2b to improve light extraction efficiency. For example, an electronic device DS including the display member DP-2 according to the exemplary embodiment (see Figure 1 ) can have improved durability and reliability, and also have superior optical efficiency.

[0243] Fig.18A is a graph illustrating results obtained by evaluating the durability of low refractive index layers according to comparative examples and exemplary embodiments of the present inventive concepts. Fig.18B is a graph illustrating results obtained by measuring refractive index values ​​of low refractive index layers according to Comparative Examples and exemplary embodiments of the present inventive concepts.

[0244] Table 1 below shows the content of each of the hollow inorganic particles and the pore-inducing material in the low refractive index layer used in the comparative examples and the exemplary embodiments, and the content ratio of the pore-inducing material, which is used for Fig.18A Adhesion test and Fig.18B In Table 1, the content ratio of the pore inducing material means the ratio of the weight of the pore inducing material based on the total weight of the hollow inorganic particles and the pore inducing material.

[0245] [Table 1]

[0246]

[0247] Referring to Table 1, when the polymer resin for forming the matrix part is 100, the low refractive index layer according to the comparative example is prepared by including about 40 wt% of the pore inducing material without including the hollow inorganic particles. Embodiment 1 corresponds to the case where, in the process of forming the low refractive index layer, when the polymer resin for forming the matrix part is 100, the content of the hollow inorganic particles is about 33 wt%, and the content of the pore inducing material is about 17 wt%. Embodiment 2 corresponds to a low refractive index layer formed by including about 38 wt% of the hollow inorganic particles and about 14 wt% of the pore inducing material based on the polymer resin of 100. Embodiment 3 corresponds to a low refractive index layer formed by including about 38 wt% of the hollow inorganic particles and about 12 wt% of the pore inducing material based on the polymer resin of 100. Embodiment 4 corresponds to a low refractive layer formed by including about 40 wt% of the hollow inorganic particles and about 10 wt% of the pore inducing material based on the polymer resin of 100.

[0248] Fig.18AThe results obtained by testing the strength when the low refractive index layer according to the comparative example and the exemplary embodiment is used are explained. Here, the strength is measured by the bolt pull test. Fig.18A The adhesion value shown in the figure. The sample used in the test is a laminate in which a glass substrate / low refractive index layer / siloxane inorganic layer is laminated. In the sample, the low refractive index layer was prepared using the contents of the hollow inorganic particles and the hollow inducing material according to the comparative example and the exemplary embodiment shown in Table 1. Fig.18A The bolt pull test relatively compares the strengths of the low refractive index layers according to the comparative example and the exemplary embodiment.

[0249] refer to Fig.18A The results show that higher adhesion values ​​are shown in the exemplary embodiment when compared to the comparative example. In the comparative example, the average value of adhesion is about 15 MPa, while in exemplary embodiments 1 to 4, the adhesion values ​​are two times or more when compared to the adhesion values ​​according to the comparative example. From the results of the adhesion values ​​according to the comparative example and the exemplary embodiment, it can be seen that the low refractive index layer provided in the electronic device according to the exemplary embodiment has superior strength. For example, it can be seen that the low refractive index layer according to the exemplary embodiment including a void component made of a pore-inducing material and hollow inorganic particles has improved strength when compared to the low refractive index layer according to the comparative example that does not include hollow inorganic particles. Reference Fig.18A , it can be seen that the low refractive index layer according to the exemplary embodiment improves strength by including the pore inducing material in a content ratio of about 5% to about 35%.

[0250] The total content of the hollow inorganic particles and the pore inducing material is about 40% to about 60% relative to the total content of the polymer resin, hollow inorganic particles and pore inducing material forming the low refractive index layer, for example, 100. For example, when the content of the polymer resin is about 40% or less (when the total content of the hollow inorganic particles and the pore inducing material is about 60% or more) when manufacturing the low refractive index layer, the content of the polymer resin of the matrix part forming the low refractive index layer may be relatively small to shrink the matrix part. Therefore, in addition to the void part made of the pore inducing material, the void part may be generated due to the shrinkage of the matrix part, which may deteriorate the strength of the low refractive index layer. When the content of the polymer resin exceeds about 60% (when the total content of the hollow inorganic particles and the pore inducing material is about 40% or less) when manufacturing the low refractive index layer, the content of the hollow inorganic particles and the pore inducing material included in the low refractive index layer may be relatively small, and therefore, it may be difficult to maintain a low refractive index value.

[0251] Reference again Fig.18A, in exemplary embodiments 3 and 4, it can be seen that the adhesion value is as high as about 50 MPa or more. Therefore, it can be seen that the low refractive index layer according to the exemplary embodiment improves strength when compared with the case where the pore inducing material is included in a content ratio of more than about 25%. For example, according to the exemplary embodiment, the low refractive index layer may include hollow inorganic particles and a void part formed by the pore inducing material, as described above. When manufacturing the low refractive index layer, the content ratio of the pore inducing material may be about 15% to about 25%, which can further improve the durability of the electronic device.

[0252] Fig.18B The refractive index values ​​of the low refractive index layers formed with the contents of the hollow inorganic particles and the pore inducing material proposed in the comparative examples and exemplary embodiments shown in Table 1 are explained. Fig.18B , it can be seen that the low refractive index layer according to exemplary embodiments 1 to 4 has a refractive index value of about 1.20 to about 1.25.

[0253] Therefore, reference Fig.18A and Fig.18B , when compared to the comparative example, in the exemplary embodiments (e.g., exemplary embodiments 1 to 4), the low refractive index layer is formed so that the content ratio of the pore inducing material is reduced, and further includes hollow inorganic particles. Therefore, it can be seen that the high adhesion value is maintained while maintaining the low refractive index value. For example, when compared to the comparative example, it can be seen that with a content ratio of the pore inducing material of about 5% to about 35%, the strength characteristics are improved in the exemplary embodiment while maintaining the low refractive index characteristics of about 1.25.

[0254] Fig.19A and Fig.19B are images illustrating results obtained by evaluating the durability of the low refractive index layers according to Comparative Example and Exemplary Embodiment 3 in Table 1. Fig.19A and Fig.19B The results of the tape test of the low refractive index layer in the comparative example and the exemplary embodiment 3 are respectively explained. The comparative example corresponds to the case where a low refractive index layer including a matrix component and a void component but not including hollow inorganic particles is used, while the exemplary embodiment 3 corresponds to the case where a low refractive index layer including all of the matrix component, the void component and the hollow inorganic particles is used.

[0255] In the tape test, the low refractive index layer according to the comparative example and exemplary embodiment 3 was formed on a glass substrate as a base material, and cross-hatched and cut, and then, a tape was attached to the cross-hatched and cut low refractive index layer to compare the state of the remaining low refractive index layer.

[0256] Fig.19Ais an image illustrating a surface of a low refractive index layer including a matrix part and a void part according to a comparative example after a tape test. Fig.19A In the DTP, the relatively dark part corresponds to the part where the low refractive index layer is delaminated, while the relatively bright part corresponds to the low refractive index layer remaining after the tape test. Fig.19A and 19B It can be seen that in the comparative example, delaminated portions DTP appear in various portions, while the low refractive index layer LRL in exemplary embodiment 3 is not delaminated and remains after the tape test. Fig.19A The results in the comparative example represent the tape test level 1B, while the Fig.19B The exemplary embodiment of the results in 3 represents level 5B in the tape test. In the tape test, level 1B corresponds to a case where more than about 65% of the cross-hatched and cut portion is removed, while level 5B corresponds to a case where the cross-hatched and cut portion is not removed by the tape test.

[0257] Therefore, reference Fig.19A and Fig.19B From the results in FIG. 1 , it can be seen that, when compared with the case where the hollow inorganic particles are not included according to the comparative example, the adhesion and the internal strength are improved in the case of the low refractive index layer according to the exemplary embodiment in which the content of the void parts is relatively reduced and the hollow inorganic particles are further included.

[0258] Fig. 20A and Fig. 20B 3 and 4 are graphs illustrating the results obtained by evaluating the moisture permeability of the low refractive index layers according to Comparative Example and Exemplary Embodiment 3, respectively. In the case of Comparative Example, the moisture permeability (g / m 2 / day) is about 19.1, while in the case of exemplary embodiment 3, the moisture permeability (g / m 2 / day) is about 17.7. For example, in the case of exemplary embodiment 3, when compared with the comparative example, it can be seen that the specific gravity of the void part is relatively reduced to reduce the moisture permeability. For example, referring to Fig. 20A and Fig. 20B From the results in FIG. 1 , it can be seen that, in the case of Exemplary Embodiment 3 in which the content of the void member is relatively reduced and hollow inorganic particles are further included, the reliability is improved.

[0259] Furthermore, the low refractive index layers of the comparative example and exemplary embodiment 3 were subjected to reliability tests under high temperature and high humidity conditions. In the case of exemplary embodiment 3, under the conditions of 85° C. / 85%, no discoloration and staining occurred.

[0260] Table 2 below shows the durability and reliability evaluation results according to the comparative example and exemplary embodiment 3.

[0261] [Table 2]

[0262] category Comparative Example Implementation 3 Adhesion force (MPa) 15MPa 65MPa Tape test 1B 5B <![CDATA[Water vapor permeability (g / m 2 / day)]]> <![CDATA[19.1g / m 2 / day]]> <![CDATA[17.7g / m 2 / day]]> WHTS (85℃ / 85%) Discoloration and staining No discoloration or staining

[0263] The electronic device according to the exemplary embodiment may have superior light efficiency and improved durability due to including the low refractive index layer including hollow inorganic particles and void parts, and may have improved internal strength while still having a good low refractive index value.

[0264] For example, the electronic device according to the exemplary embodiment may include a low refractive index layer having an optimized content ratio of a void inducing material and hollow inorganic particles of a void part in a display element, thereby achieving improved light efficiency and durability.

[0265] An electronic device according to example embodiments may include a low refractive index layer including both hollow inorganic particles and a void member, thereby achieving improved reliability while maintaining a low refractive index.

[0266] An electronic device according to example embodiments may include a low refractive index layer having a good refractive index and high strength, which may improve light efficiency and color reproducibility, thereby improving display quality.

[0267] While the inventive concept has been particularly shown and described with reference to exemplary embodiments of the inventive concept, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the inventive concept as defined by the following claims.

Claims

1. An electronic device, comprising: a light source member configured to provide a first light; a color conversion member disposed on the light source member and including a first conversion material that converts the first light into a second light and a second conversion material that converts the first light into a third light; and a low refractive index layer provided on the light source member and provided on at least one of an upper portion and a lower portion of the color conversion member, wherein the low refractive index layer includes a matrix component, a plurality of hollow inorganic particles dispersed in the matrix component and including first voids, and a plurality of second voids defined by the matrix component, A first volume of the sum of the volumes of the first gaps is greater than a second volume of the sum of the volumes of the second gaps, The hollow inorganic particles are not connected to each other, and the second voids are not connected to each other, The hollow inorganic particles and the second voids are not connected to each other. 2 . The electronic device according to claim 1 , wherein each of the hollow inorganic particles includes a core part filled with air and a shell part surrounding the core part.

3. The electronic device according to claim 2, wherein the case member comprises at least one of SiO2, MgF2 and Fe3O4. The electronic device according to claim 1 , wherein the second voids have a spherical shape and an average diameter of 1 nm to 5 nm. 5 . The electronic device according to claim 1 , wherein the hollow inorganic particles have a spherical shape and an average diameter of 20 nm to 200 nm. 6 . The electronic device according to claim 1 , wherein the matrix member comprises at least one of an acrylic polymer, a silicone polymer, a urethane polymer, and an imide polymer. 7 . The electronic device according to claim 1 , wherein the low refractive index layer has a transmittance of 95% or more within a wavelength of 400 nm to 700 nm, and has a refractive index of 1.1 to 1.5 at a wavelength of 632 nm. 8 . The electronic device of claim 1 , wherein the first light is blue light, the first conversion material is a first quantum dot that converts the blue light into green light, and the second conversion material is a second quantum dot that converts the blue light into red light.

9. The electronic device according to claim 1, further comprising: A display element is disposed on the color conversion member.

10. The electronic device according to claim 9, wherein the display element comprises a liquid crystal element.

11. The electronic device according to claim 9, wherein the light source member comprises: Boot Panel; and a light source disposed at one side of the guide panel, wherein the low refractive index layer is disposed between the guide panel and the color conversion member. The electronic device according to claim 11 , wherein the low refractive index layer is directly disposed on the guide panel.

13. The electronic device according to claim 11, further comprising: A barrier layer is disposed on at least one of the top surface and the bottom surface of the color conversion member.

14. The electronic device according to claim 1, wherein the color conversion member comprises a plurality of color conversion components spaced apart from each other on a plane, wherein the plurality of color conversion components comprises: a first color conversion component, the first color conversion component comprising the first conversion material; a second color conversion component, the second color conversion component comprising the second conversion material; and A third color conversion component is configured to transmit the first light. 15 . The electronic device according to claim 14 , wherein the color conversion member further comprises a light blocking member provided between the first to third color conversion members spaced apart from each other.

16. The electronic device according to claim 14, further comprising: A reflective layer is provided on at least one of an upper portion and a lower portion of the plurality of color conversion members, wherein the reflective layer transmits the first light and reflects the second light and the third light. 17 . The electronic device according to claim 16 , wherein the low refractive index layer is provided between the reflective layer and the plurality of color conversion components and covers the plurality of color conversion components. 18 . The electronic device according to claim 16 , wherein the reflective layer is provided between the low refractive index layer and the plurality of color conversion components, and covers the plurality of color conversion components. 19 . The electronic device of claim 14 , wherein the color conversion member further comprises a barrier layer disposed on at least one of an upper portion and a lower portion of the plurality of color conversion components. 20 . The electronic device according to claim 19 , wherein the barrier layer is disposed between the low refractive index layer and the plurality of color conversion components, and covers the plurality of color conversion components. 21 . The electronic device of claim 14 , wherein the color conversion member further comprises an optical filter layer configured to transmit at least one of the second light and the third light.

22. The electronic device of claim 21, wherein the optical filter layer comprises: a first optical filter layer disposed on the first color conversion component; and A second optical filter layer is disposed on the second color conversion component.

23. The electronic device of claim 22, wherein the first optical filter layer transmits green light, and the second optical filter layer transmits red light.

24. The electronic device according to claim 14, further comprising: a first base substrate, the first base substrate being disposed on the light source component; a second base substrate, the second base substrate being disposed on the light source member and facing the first base substrate; and a liquid crystal layer disposed between the first base substrate and the second base substrate on the light source member, wherein the color conversion member is disposed between the liquid crystal layer and the second base substrate. 25 . The electronic device according to claim 24 , wherein the low refractive index layer is provided between the liquid crystal layer and the color conversion member, or between the color conversion member and the second base substrate.

26. The electronic device according to claim 24, further comprising: a first polarizing layer, the first polarizing layer being disposed between the light source member and the first base substrate or between the first base substrate and the liquid crystal layer; and A second polarizing layer is disposed between the liquid crystal layer and the second base substrate.

27. The electronic device according to claim 14, wherein the light source member comprises an organic electroluminescent element.

28. The electronic device according to claim 27, wherein the color conversion member further comprises a baffle member which separates the plurality of color conversion members from each other and is disposed between adjacent color conversion members of the plurality of color conversion members.

29. The electronic device according to claim 27, wherein the color conversion member further comprises a color filter layer, the color filter layer being disposed on the plurality of color conversion components, and the color filter layer comprising: a plurality of filter components configured to emit light having various colors; and A light blocking member is configured to separate the plurality of filter members from each other and is disposed between adjacent filter members of the plurality of filter members.

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