Color conversion substrate

Abstract

The present disclosure relates to a color conversion substrate comprising: a substrate comprising a first transmissive region and a second transmissive region; a color filter layer disposed on the substrate; a light blocking layer disposed on the color filter layer and defining a first transmissive region and a second transmissive region; a first organic structure in the first transmissive region and including scattering particles; a first color conversion portion in the first transmissive region and covering the first organic structure, the first color conversion portion including first color conversion particles; and a transmissive portion in the second transmissive region and including scattering particles.

Description

Technical Field

[0001] Embodiments relate to display devices. More particularly, embodiments relate to color conversion substrates and display devices including the same. Background Art

[0002] A display device is a device that displays an image to provide visual information to a user. The display device may include a color conversion substrate and an array substrate, the color conversion substrate including a color conversion layer and a color filter layer, and the array substrate including a plurality of pixels.

[0003] A sealing member and a filling layer may be disposed between the color conversion substrate and the array substrate. The sealing member may couple the color conversion substrate and the array substrate, and the filling layer may fill a gap between the color conversion substrate and the array substrate. Utility Model Content

[0004] The present disclosure provides color conversion substrates with improved light efficiency.

[0005] The present disclosure provides a display device including a color conversion substrate having improved light efficiency.

[0006] A color conversion substrate according to an embodiment of the present disclosure includes: a substrate including a first transmission area and a second transmission area; a color filter layer disposed on the substrate; a light blocking layer disposed on the color filter layer and defining the first transmission area and the second transmission area; a first organic structure in the first transmission area and including scattering particles; a first color conversion portion in the first transmission area and covering the first organic structure, the first color conversion portion including first color conversion particles; and a transmission portion in the second transmission area and including scattering particles.

[0007] In an embodiment, scattering particles may not be present in the first color conversion portion.

[0008] In an implementation, the first color conversion portion may have a first height, and the first organic structure may have a second height different from the first height.

[0009] In an embodiment, the first height may be greater than the second height.

[0010] In an embodiment, a height of the transmission portion is equal to a height of the first organic structure.

[0011] In an implementation, the first organic structure may be one of a plurality of first organic structures in the first transmission region, the plurality of first organic structures having the same height.

[0012] In an embodiment, the first organic structure is one of a plurality of first organic structures in the first transmission region, the plurality of first organic structures having different heights.

[0013] In an implementation, the transmission portion may be one of a plurality of transmission portions in the second transmission region, the heights of the plurality of transmission portions being smaller than a height of the light blocking layer.

[0014] In an implementation, the transmission portion may include the same material as the first organic structure.

[0015] In an implementation, the transmitting portion and the first organic structure may include a light-transmitting organic material.

[0016] A display device according to an embodiment of the present disclosure includes: a first base substrate, including a first transmission area and a second transmission area; a color filter layer, disposed on the first base substrate; a light blocking layer, disposed on the color filter layer and defining the first transmission area and the second transmission area; a first organic structure, in the first transmission area and including scattering particles; a first color conversion portion, in the first transmission area and covering the first organic structure, the first color conversion portion including first color conversion particles; a transmission portion, in the second transmission area and including scattering particles; a second base substrate, connected to the first base substrate; a display device layer, disposed on the second base substrate; and a filling layer, disposed between the display device layer and the light blocking layer.

[0017] In an embodiment, scattering particles are not present in the first color converting portion.

[0018] In an implementation, the first color conversion portion may have a first height, and the first organic structure may have a second height different from the first height.

[0019] In an embodiment, the first height may be greater than the second height.

[0020] In an implementation, the transmissive portion may have a second height.

[0021] In an implementation, the first organic structure may be one of a plurality of first organic structures having the same height in the first transmission region.

[0022] In an implementation, the first organic structure may be one of a plurality of first organic structures in the first transmission region, the plurality of first organic structures having different heights.

[0023] In an implementation, the transmission portion may be one of a plurality of transmission portions having a height smaller than a height of the light blocking layer.

[0024] In an implementation, the transmission portion may include the same material as the first organic structure.

[0025] In an implementation, the transmitting portion and the first organic structure may include a light-transmitting organic material.

[0026] The color conversion substrate and the display device including the color conversion substrate according to the embodiment of the present disclosure may include a first organic structure including scattering particles in the first transmission region. Therefore, the color conversion substrate and the display device may reduce the external light reflection region and improve the black display quality.

[0027] In addition, the color conversion substrate and the display device may include a first color conversion portion in the first transmission region, the first color conversion portion including the first color conversion particles and covering the first organic structure. Therefore, the color conversion substrate and the display device can increase the probability of a reaction between the incident light and the first color conversion particles by increasing the optical path of the incident light, thereby improving light efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a plan view of the display device.

[0029] Figure 2 It is along Figure 1 A cross-sectional view taken along line II'.

[0030] Figure 3 yes Figure 1 Magnified view of area A.

[0031] Figure 4 It is along Figure 3 A cross-sectional view taken along line II-II'.

[0032] Figure 5 is included in Figure 3 A magnified view of the first organic structure in the color conversion substrate.

[0033] Figure 6 It is shown that the Figure 4 A cross-sectional view of an array substrate in a display device.

[0034] Figure 7 and Figure 8 It is shown that the Figure 6 A view of a light-emitting layer in a display device.

[0035] Fig. 9 , Fig.10 , Fig.11 , Fig.12 , Fig.13 , Fig.14 , Fig.15 and Fig.16 It is shown Figure 1 A view of a method for manufacturing a display device.

[0036] Fig.17 is an enlarged view showing a color conversion substrate.

[0037] Fig.18 It is shown that Fig.17 A cross-sectional view of a color conversion substrate for a display device.

[0038] Fig.19 is included in Fig.18 An enlarged view of a first organic structure in a display device.

[0039] Fig. 20 , Fig.21 , Fig. 22 and Fig.23 It is shown Fig.18 A view of a method for manufacturing a display device.

[0040] Fig.24 is an enlarged view showing a color conversion substrate.

[0041] Fig.25 It is shown that Fig.24 A view of a color conversion substrate for a display device.

[0042] Fig.26 , Fig. 27 , Fig.28 and Fig.29 It is shown Fig.25 A view of a method for manufacturing a display device. DETAILED DESCRIPTION

[0043] Hereinafter, embodiments will be described in more detail with reference to the accompanying drawings. The same reference numerals are used for the same components in the drawings, and redundant descriptions of the same components will be omitted.

[0044] Figure 1 is a plan view of the display device. Figure 2 It is along Figure 1 A cross-sectional view taken along line II'.

[0045] refer to Figure 1 , the display device 10 may include a first area A1, a second area A2, and a third area A3 in a plan view.

[0046] For example, the plane may be defined by a second direction DR2 and a third direction DR3. Each of the second direction DR2 and the third direction DR3 may be non-parallel to the first direction DR1. As used herein, the direction of the arrow is the "positive" direction on the axis. The direction opposite to the direction of the arrow is the "negative" direction on the axis.

[0047] The second area A2 and the third area A3 may surround the first area A1. Specifically, in a plan view, the second area A2 may surround the first area A1. In a plan view, the third area A3 may surround the second area A2.

[0048] The first area A1 may be a display area where an image is displayed. The second area A2 and the third area A3 may be non-display areas where no image is displayed. Specifically, the second area A2 may be a sealed area. The sealed area may be an area where a sealing member SLM is provided. The third area A3 may be an external area. The external area may be an area where a circuit structure (e.g., various wirings, a driving circuit, etc.) is placed.

[0049] refer to Figure 1 and Figure 2 , in a cross-sectional view, the display device 10 may include a color conversion substrate 100, a sealing member SLM, and an array substrate 200. For example, the cross-section may be defined by a first direction DR1 and a second direction DR2.

[0050] The color conversion substrate 100 and the array substrate 200 may face each other. For example, the color conversion substrate 100 and the array substrate 200 may face each other in the first direction DR1.

[0051] The array substrate 200 may include a plurality of pixels. For example, the plurality of pixels may be arranged in the first area A1. Each of the plurality of pixels may include a light emitting device (eg, Figure 6 The first light emitting diode LED1, the second light emitting diode LED2 and the third light emitting diode LED3). For example, the light emitting device may be an inorganic light emitting device, an organic light emitting device, etc. The light emitting device may generate light according to a driving signal.

[0052] The color conversion substrate 100 may include a color conversion layer (eg, Figure 3 The color conversion layer CCL may be provided in the first region A1. The color conversion layer may include color conversion particles. For example, the color conversion particles may be red quantum dots, green quantum dots, blue quantum dots, etc. The color conversion particles may convert the wavelength of light generated by the light emitting device.

[0053] For example, the color conversion particles can have a core-shell structure. For example, the core can include a material selected from Group II-VI (InP, InGaP, GaP, etc.), Group I-VII (CdS, CdSe, CdSeS, CdTe, ZnS, ZnSe, ZnSeS, ZnTe, ZnSeTe, etc.), Group I-III-VI (CuInS, CuInSe, CuGaS, CuGaSe, CuInGaS, CuInGaSe, AgInGaS, AgInGaSe, AgInS, AgInSe, etc.), , AgGaS, AgGaSe, etc.) and materials in perovskite structures (CsPbCl, CsPb(ClBr), CsPbBr, CsPb(BrI), CsPbI, Cs(SnPb)Cl, Cs(SnPb)(ClBr), Cs(SnPb)Br, Cs(SnPb)(BrI), Cs(SnPb)I, CsSnCl, CsSn(ClBr), CsSnBr, CsSn(BrI), CsSnI, etc.). These can be used alone or in combination with each other. The shell may include ZnS, ZnSe, ZnSeS, AgGaInS, AgGaS, AgInS, GaS, CdSe, CdS, etc. These can be used alone or in combination with each other. However, the present disclosure is not limited thereto.

[0054] The color conversion substrate 100 may also include a color filter layer (eg, Figure 4 The color filter layer CF of the display device 10 may be provided. For example, the color filter layer may be provided in the first area A1. In this case, the color filter layer may transmit light having a specific wavelength. For example, the color filter layer may be provided in the second area A2 and the third area A3. The color filter layer may prevent the circuit structure from being visible from the outside of the display device 10. In addition, the color filter layer may prevent a light leakage phenomenon. The light leakage phenomenon may refer to a phenomenon in which light reflected from the circuit structure, light emitted from the first area A1, etc. is emitted through the second area A2 and the third area A3.

[0055] In the cross-sectional view, the sealing member SLM may be disposed between the array substrate 200 and the color conversion substrate 100. For example, the sealing member SLM may be disposed in the second area A2. Thus, the sealing member SLM may couple the array substrate 200 and the color conversion substrate 100.

[0056] The filling layer FL may be disposed between the array substrate 200 and the color conversion substrate 100. For example, the filling layer FL may be disposed in the first area A1. The filling layer FL may maintain a gap between the array substrate 200 and the color conversion substrate 100. Therefore, the filling layer FL may be used as a buffer against external pressure applied to the display device 10. For example, the filling layer FL may include polyimide, acrylate, etc. However, the present disclosure is not limited thereto. For example, the filling layer FL may have an air gap structure.

[0057] Figure 3 yes Figure 1 Magnified view of area A. Figure 4 It is along Figure 3 A cross-sectional view taken along line II-II'. Figure 5 is included in Figure 3 A magnified view of the first organic structure in the color conversion substrate. Figure 6 It is shown that the Figure 4 A cross-sectional view of an array substrate in a display device. Figure 7 and Figure 8 It is shown that the Figure 6 A view of a light-emitting layer in a display device.

[0058] refer to Figure 3 and Figure 4 As described above, the display device 10 may include a color conversion substrate 100, an array substrate 200, and a filling layer FL. In an embodiment, the color conversion substrate 100 may include a first base substrate SUB1, a color filter layer CF, a low refractive layer LR, a protective layer PL, a light blocking layer BK, a color conversion layer CCL, a capping layer CP, and a spacer SPC. The array substrate 200 may include a second base substrate SUB2, a display device layer DL, and an encapsulation layer ECL.

[0059] The light generated in the array substrate 200 (ie, the incident light L1) may be incident on the color conversion substrate 100. For example, the incident light L1 may be blue light. However, the present disclosure is not limited thereto. For example, the incident light L1 may be light of various colors. For example, the incident light L1 may be white light.

[0060] For example, the first area A1 may include a light emitting area and a light blocking area BA. Specifically, the light emitting area may include a first transmission area LA1, a second transmission area LA2, and a third transmission area LA3. The first transmission area LA1, the second transmission area LA2, and the third transmission area LA3 may be spaced apart from each other in a plan view and may be repeatedly arranged. However, the present disclosure is not limited thereto. The light emitting area may include two or four or more types of transmission areas.

[0061] The incident light L1 passing through the color conversion substrate 100 may be emitted to the outside of the display device 10. In the first transmission area LA1, the first transmission light L2R may be emitted as red light. In the second transmission area LA2, the second transmission light L2G may be emitted as green light. In the third transmission area LA3, the third transmission light L2B may be emitted as blue light. However, the present disclosure is not limited thereto. For example, the first transmission light L2R, the second transmission light L2G, and the third transmission light L2B may be lights of the same color.

[0062] In a plan view, the light blocking area BA may surround the first transmission area LA1, the second transmission area LA2, and the third transmission area LA3. For example, the light blocking area BA may have a grid shape in a plan view. However, the present disclosure is not limited thereto. For example, the light blocking area BA may have various planar shapes.

[0063] In an embodiment, when the display device 10 includes the first area A1, the second area A2, and the third area A3, the first base substrate SUB1 may also include the first area A1, the second area A2, and the third area A3. As described above, the first area A1 may include a light emitting area (e.g., the first transmission area LA1, the second transmission area LA2, and the third transmission area LA3) and a light blocking area BA surrounding the light emitting area.

[0064] The first base substrate SUB1 may include a transparent insulating material. For example, the first base substrate SUB1 may include glass, plastic, or the like.

[0065] In an implementation, the color filter layer CF may be disposed on the first base substrate SUB1 (eg, in a negative direction of the first direction DR1 ).

[0066] The color filter layer CF may include a plurality of color filter patterns. For example, the color filter layer CF may include a first color filter pattern CF1, a second color filter pattern CF2, and a third color filter pattern CF3.

[0067] Each of the plurality of color filter patterns may overlap with a light emitting region. For example, the first color filter pattern CF1 may overlap with the third transmission region LA3. Therefore, the first color filter pattern CF1 may selectively transmit blue light. The second color filter pattern CF2 may overlap with the first transmission region LA1. Therefore, the second color filter pattern CF2 may selectively transmit red light. The third color filter pattern CF3 may overlap with the second transmission region LA2. Therefore, the third color filter pattern CF3 may selectively transmit green light. The color filter layer CF may selectively transmit only light of a specific wavelength and emit light of various colors to the outside of the display device 10.

[0068] Each of the plurality of color filter patterns may also overlap with the light blocking area BA. For example, the first color filter pattern CF1 may overlap with the third transmission area LA3 and the light blocking area BA, and the first color filter pattern CF1 may not overlap with the first transmission area LA1 and the second transmission area LA2. The second color filter pattern CF2 may overlap with the first transmission area LA1 and the light blocking area BA, and the second color filter pattern CF2 may not overlap with the second transmission area LA2 and the third transmission area LA3. The third color filter pattern CF3 may overlap with the second transmission area LA2 and the light blocking area BA, and the third color filter pattern CF3 may not overlap with the first transmission area LA1 and the third transmission area LA3. In other words, in the light blocking area BA, a portion of the first color filter pattern CF1, a portion of the second color filter pattern CF2, and a portion of the third color filter pattern CF3 may overlap with each other. Therefore, the color filter layer CF may prevent color mixing between the adjacent first transmission area LA1, the second transmission area LA2, and the third transmission area LA3.

[0069] Each of the plurality of color filter patterns may overlap the second area A2 and the third area A3. In this case, a portion of the color filter layer CF that overlaps the second area A2 and the third area A3 may be used as a light blocking member. In the second area A2 and the third area A3, the third color filter pattern CF3, the second color filter pattern CF2, and the first color filter pattern CF1 may be arranged to overlap each other in the first direction DR1. Therefore, the color filter layer CF may effectively block light traveling in the first direction DR1 in the second area A2 and the third area A3. Therefore, the color filter layer CF may prevent a light leakage phenomenon from occurring in the display device 10.

[0070] However, the present disclosure is not limited thereto. For example, the color filter layer CF may be disposed only in the first area A1, and additional light blocking members may be disposed in the second area A2 and the third area A3.

[0071] In addition, Figure 4 In the embodiment of the present invention, the second color filter pattern CF2 may be disposed on the first color filter pattern CF1 (e.g., in the negative direction along the first direction DR1), and the third color filter pattern CF3 may be disposed on the second color filter pattern CF2. However, without departing from the scope of the present disclosure, the overlapping position of the color filter layer CF, the overlapping area of ​​the color filter layer CF, the overlapping order of the color filter layer CF, etc. may be changed.

[0072] The low refractive layer LR may be disposed on the color filter layer CF.

[0073] For example, the low refractive layer LR may include a material having a relatively smaller refractive index than the material included in the color conversion layer CCL. The material may be organic. The low refractive layer LR may improve light extraction efficiency. Therefore, the brightness and life of the display device 10 may be increased. However, the present disclosure is not limited thereto. For example, the low refractive layer LR may include an inorganic material. Alternatively, the low refractive layer LR may be omitted.

[0074] The protective layer PL may be disposed on the low refractive layer LR. For example, the protective layer PL may cover the low refractive layer LR. For example, the protective layer PL may include an inorganic material. However, the present disclosure is not limited thereto. For example, the protective layer PL may include an organic material. Alternatively, the protective layer PL may be omitted.

[0075] In an implementation, the light blocking layer BK may be disposed on the color filter layer CF. Specifically, the light blocking layer BK may be disposed on the protection layer PL.

[0076] The light blocking layer BK may include a light blocking material. For example, the light blocking layer BK may include an organic material. Specifically, the organic material may include a black pigment, a dye, carbon black, etc. These may be used alone or in combination with each other. However, the present disclosure is not limited thereto. The light blocking layer BK may include an inorganic material.

[0077] The light blocking layer BK may be disposed in the first area A1. For example, the light blocking layer BK may define a light emitting area. In an embodiment, the light blocking layer BK may define a first transmission area LA1, a second transmission area LA2, and a third transmission area LA3. To this end, the light blocking layer BK may not overlap with the light emitting area (e.g., the first transmission area LA1, the second transmission area LA2, and the third transmission area LA3), and the light blocking layer BK may completely overlap with the light blocking area BA. The light blocking layer BK may have a grid shape in a plan view.

[0078] A plurality of openings may be defined in the light blocking layer BK. For example, a pixel opening POP and a dummy opening DOP (see Figure 3 ).

[0079] The pixel opening POP may have various planar shapes, such as a circle, a triangle, a square, a pentagon, a hexagon, a heptagon, an octagon, or the like.

[0080] The dummy opening DOP may be adjacent to the pixel opening POP. For example, the dummy opening DOP may surround the pixel opening POP in a plan view. The dummy opening DOP may accommodate ink mistakenly deposited in a process of forming a first color conversion portion CCL1 or a second color conversion portion CCL2 to be described later.

[0081] The color conversion layer CCL may be disposed on the protection layer PL. Specifically, the color conversion layer CCL may be disposed in the pixel opening POP of the light blocking layer BK in the first area A1. The color conversion layer CCL may convert the color of the incident light L1.

[0082] In an embodiment, the color conversion layer CCL may include a plurality of color conversion portions spaced apart from each other. For example, the color conversion layer CCL may include a first color conversion portion CCL1, a second color conversion portion CCL2, and a transmissive portion TL.

[0083] In an embodiment, the color conversion layer CCL may include a first organic structure ST1, a first color conversion portion CCL1, a second organic structure ST2, a second color conversion portion CCL2, and a transmissive portion TL.

[0084] In an embodiment, the first organic structure ST1 may overlap the first transmission area LA1, and may include first scattering particles CCL1c and an organic dispersion portion CCL1b. The first scattering particles CCL1c may be dispersed in the organic dispersion portion CCL1b.

[0085] The first scattering particles CCL1c may increase the optical path by scattering the incident light L1 without substantially changing the wavelength of the incident light L1. For example, the first scattering particles CCL1c may include metal oxides, organic materials, etc. For example, the first scattering particles CCL1c may include TiO 2 、SiO 2 ,BaSO 4 、ZnO、Al 2 O 3 、CaCO 3 Etc. These may be used alone or in combination with each other. However, the present disclosure is not limited thereto.

[0086] In an embodiment, the organic dispersion portion CCL1b may include a light-transmitting organic material. The light-transmitting organic material may be a material that can transmit visible light of all wavelengths. For example, the organic material may be a photoresist. In this case, the first organic structure ST1 may be formed by a photolithography process. However, the present disclosure is not limited thereto.

[0087] In an embodiment, the first color conversion portion CCL1 may overlap the first transmission area LA1 and may include first color conversion particles CCL1d and first dispersion portions CCL1a. The first color conversion particles CCL1d may be dispersed in the first dispersion portions CCL1a.

[0088] The first color conversion particles CCL1d may include various particles that convert the color of the incident light L1. The first color conversion particles CCL1d may include quantum dots that absorb the incident light L1 and emit red light. However, the present disclosure is not limited thereto.

[0089] A quantum dot may be defined as a semiconductor material having nanocrystals. Depending on the composition and size of the quantum dot, the quantum dot may have a specific band gap. Thus, the quantum dot may convert the incident light L1 into light having a different wavelength from the incident light L1. For example, the quantum dot may have a diameter of about 100 nanometers (nm) or less. Specifically, the quantum dot may have a diameter of about 1 nm to about 20 nm.

[0090] The first dispersion part CCL1a may include a resin. For example, the first dispersion part CCL1a may include an epoxy resin, an acrylic resin, a phenolic resin, a melamine resin, a cardo resin, an imide resin, etc. These may be used alone or in combination with each other. In this case, the first dispersion part CCL1a may be formed by an inkjet process. However, the present disclosure is not limited thereto.

[0091] The first color conversion portion CCL1 may convert the incident light L1 into a red first transmission light L2R. The incident light L1 that is not converted by the first color conversion portion CCL1 may be blocked (e.g., absorbed or reflected) by the second color filter pattern CF2. Therefore, in the first transmission area LA1, the red first transmission light L2R passes through the first base substrate SUB1 and travels to the outside of the display device 10 (e.g., in the first direction DR1).

[0092] In an embodiment, the first color conversion portion CCL1 may cover the first organic structure ST1. To this end, the first organic structure ST1 may be first formed in the pixel opening POP overlapping the first transmission area LA1 and defined by the light blocking layer BK, and then the first color conversion portion CCL1 may be formed to cover the first organic structure ST1.

[0093] refer to Figure 5 In an embodiment, the first color conversion portion CCL1 may have a first height LE1, and the first organic structure ST1 may have a second height LE2. The first height LE1 may be greater than the second height LE2. The height may mean a length in the first direction DR1. As the optical path of the incident light L1 becomes longer by a length obtained by subtracting the second height LE2 from the first height LE1, the probability of a reaction between the incident light L1 and the first color conversion particle CCL1d may be greater.

[0094] In an embodiment, the first scattering particles CCL1c may be disposed only in the first organic structure ST1, and the first color conversion particles CCL1d may be disposed only in the first dispersion portion CCL1a. In other words, the first scattering particles CCL1c may not be disposed in the first dispersion portion CCL1a.

[0095] To this end, the first organic structure ST1 may be formed of the organic dispersion portion CCL1b including the first scattering particles CCL1c using a photolithography process. The first color conversion portion CCL1 may be formed of the first dispersion portion CCL1a including the first color conversion particles CCL1d using an inkjet process.

[0096] In other words, when the display device 10 includes the first organic structure ST1, the space in which the first scattering particles CCL1c are disposed may be limited (or reduced).

[0097] In an embodiment, the first organic structure ST1 may include a first sub-organic structure and a second sub-organic structure. The first sub-organic structure may be located in the first arrangement area SA1, and the second sub-organic structure may be located in the second arrangement area SA2. Therefore, the space in which the first scattering particles CCL1c are disposed may be limited to the first arrangement area SA1 and the second arrangement area SA2. Fig. 9 , Fig.10 , Fig.11 , Fig.12 , Fig.13 , Fig.14 , Fig.15 and Fig.16 A detailed description of a method of forming the color conversion layer CCL is described.

[0098] Reference again Figure 1 , Figure 2 , Figure 3 and Figure 4 In an embodiment, the second organic structure ST2 may be in the second transmission area LA2, and may include second scattering particles CCL2c and an organic dispersion portion CCL2b. The second scattering particles CCL2c may be dispersed and arranged in the organic dispersion portion CCL2b. The organic dispersion portion CCL2b may be substantially the same as or similar to the organic dispersion portion CCL1b included in the first organic structure ST1. In addition, the second scattering particles CCL2c may be substantially the same as or similar to the first scattering particles CCL1c. Hereinafter, for simplicity, a description of a structure similar to the first organic structure ST1 will be omitted.

[0099] In an implementation, the second color conversion portion CCL2 may be in the second transmission area LA2 and include second color conversion particles CCL2d and second dispersion portions CCL2a.

[0100] The second color conversion particles CCL2d may be dispersed and arranged within the second dispersed portion CCL2a.

[0101] The second dispersion portion CCL2a may be substantially the same as or similar to the first dispersion portion CCL1a. Hereinafter, for simplicity, description of a structure similar to the first color conversion portion CCL1 will be omitted.

[0102] The second color conversion particles CCL2d may include various particles that change the color of the incident light L1. The second color conversion particles CCL2d may include quantum dots that absorb the incident light L1 and emit green light. However, the present disclosure is not limited thereto.

[0103] The second color conversion portion CCL2 may convert the incident light L1 into a green second transmission light L2G. The incident light L1 not converted by the second color conversion portion CCL2 may be blocked (e.g., absorbed or reflected) by the third color filter pattern CF3. Thus, in the second transmission area LA2, the green second transmission light L2G may pass through the first base substrate SUB1 and travel to the outside of the display device 10.

[0104] In an embodiment, the second color conversion portion CCL2 may cover the second organic structure ST2. To this end, the second organic structure ST2 may be first formed in the pixel opening POP overlapping the second transmission area LA2 and defined by the light blocking layer BK, and then the second color conversion portion CCL2 may be formed to cover the second organic structure ST2.

[0105] In an embodiment, the second scattering particles CCL2c may be disposed in the second organic structure ST2 but not in the second color conversion portion CCL2, and the second color conversion particles CCL2d may be disposed in the second dispersion portion CCL2a but not in the second organic structure ST2. In other words, the second scattering particles CCL2c may not be disposed in the second dispersion portion CCL2a. To this end, the second organic structure ST2 may be formed of the organic dispersion portion CCL2b including the second scattering particles CCL2c using a photolithography process. The second color conversion portion CCL2 may be formed of the second dispersion portion CCL2a including the second color conversion particles CCL2d using an inkjet process. In other words, when the display device 10 includes the second organic structure ST2, the space in which the second scattering particles CCL2c are disposed may be limited (or reduced).

[0106] In an embodiment, the transmission portion TL may overlap the third transmission area LA3 and may include third scattering particles TLb and an organic dispersion layer TLa. The third scattering particles TLb may be dispersed in the organic dispersion layer TLa. The third scattering particles TLb may be substantially the same as or similar to the first scattering particles CCL1c. Hereinafter, for simplicity, descriptions of structures similar to the first organic structure ST1 will be omitted.

[0107] In an embodiment, the organic dispersion layer TLa may include the same material as the organic dispersion portion CCL1b in the first organic structure ST1 and the organic dispersion portion CCL2b in the second organic structure ST2. For example, the organic dispersion layer TLa included in the transmission portion TL may include a light-transmitting organic material. In this case, the first organic structure ST1, the second organic structure ST2, and the transmission portion TL may be simultaneously formed using the same process. Therefore, in an embodiment, the heights of the first organic structure ST1 and the transmission portion TL may be the same.

[0108] The transmission portion TL may transmit the incident light L1 and emit a blue third transmission light L2B. Some wavelengths of the incident light L1 may be blocked (e.g., absorbed or reflected) by the first color filter pattern CF1. Therefore, in the third transmission area LA3, the blue third transmission light L2B may pass through the first base substrate SUB1 and travel to the outside of the display device 10.

[0109] The first transmission light L2R of the first transmission area LA1, the second transmission light L2G of the second transmission area LA2, and the third transmission light L2B of the third transmission area LA3 may be combined to display an image in the first area A1.

[0110] Figure 3 and Figure 4 The color conversion substrate 100 shown in FIG. 1 is an example, and the type of scattering particles, the size of the scattering particles, the density of the scattering particles, the organic matter included in the organic dispersion layer TLa, etc. may be changed without departing from the scope of the present disclosure.

[0111] For example, the transmission portion TL may further include third color conversion particles that absorb the incident light L1 and emit blue light.

[0112] In addition, the organic dispersion layer TLa in the transmission portion TL may include a material different from the organic dispersion portions CCL1b and CCL2b in the first and second organic structures ST1 and ST2. The third scattering particles TLb may include a material different from the first scattering particles CCL1c.

[0113] On the other hand, the concentration of the first scattering particles CCL1c, the concentration of the second scattering particles CCL2c, and the concentration of the third scattering particles TLb may be different from each other. For example, the concentration of the third scattering particles TLb may be greater than the concentration of the first scattering particles CCL1c and the concentration of the second scattering particles CCL2c. As used herein, the "concentration" of particles refers to the number of particles per given volume.

[0114] In an embodiment, the height of the color conversion layer CCL (eg, the length in the first direction DR1) may be less than the height of the light blocking layer BK. However, the present disclosure is not limited thereto. For example, in some embodiments, the height of the color conversion layer CCL may be substantially the same as the height of the light blocking layer BK.

[0115] The capping layer CP may be disposed on the light blocking layer BK and the color conversion layer CCL. The capping layer CP may prevent foreign materials (e.g., oxygen, moisture, etc.) from reaching the color conversion layer CCL. For example, the capping layer CP may cover the light blocking layer BK and the color conversion layer CCL. However, the present disclosure is not limited thereto. For example, in some embodiments, the capping layer CP may be omitted.

[0116] The spacer SPC may be disposed on the light blocking layer BK. Specifically, the spacer SPC may be disposed on the capping layer CP. The spacer SPC may contact the array substrate 200. Specifically, the spacer SPC may contact the encapsulation layer ECL to be described later. The spacer SPC may maintain a gap between the color conversion substrate 100 and the array substrate 200.

[0117] For example, the spacer SPC may include an organic material. For example, the spacer SPC may include a photoresist. However, the present disclosure is not limited thereto.

[0118] refer to Figure 6 As described above, the array substrate 200 may include the second base substrate SUB2, the display device layer DL, and the encapsulation layer ECL.

[0119] In an implementation, the second base substrate SUB2 may face the first base substrate SUB 1. For example, the second base substrate SUB2 may face the first base substrate SUB 1 in the first direction DR1.

[0120] The second base substrate SUB2 may include a transparent or opaque insulating material. For example, the second base substrate SUB2 may include glass. In this case, the array substrate 200 may be a rigid display substrate. For another example, the second base substrate SUB2 may include plastic. In this case, the array substrate 200 may be a flexible display substrate.

[0121] In an embodiment, the display device layer DL may be disposed on the second base substrate SUB2. The display device layer DL may include a buffer layer BFR, first, second, and third transistors TR1, TR2, and TR3, an insulating layer IL, a pixel defining layer PDL, and first, second, and third light emitting diodes LED1, LED2, and LED3.

[0122] The buffer layer BFR may be disposed on the second base substrate SUB2. The buffer layer BFR may prevent impurities such as oxygen and moisture from diffusing into the array substrate 200. The buffer layer BFR may include an inorganic material such as a silicon compound, a metal oxide, etc. The buffer layer BFR may have a single layer structure or a multilayer structure including a plurality of insulating layers.

[0123] The first transistor TR1, the second transistor TR2, and the third transistor TR3 may be disposed on the buffer layer BFR in the first region A1. The channel layer of the transistor may include an oxide semiconductor, a silicon semiconductor, an organic semiconductor, etc. For example, the oxide semiconductor may include at least one oxide from indium (In), gallium (Ga), tin (Sn), zirconium (Zr), vanadium (V), hafnium (Hf), cadmium (Cd), germanium (Ge), chromium (Cr), titanium (Ti), and zinc (Zn). The silicon semiconductor may include amorphous silicon, polycrystalline silicon, etc.

[0124] The insulating layer IL may cover the first transistor TR1, the second transistor TR2, and the third transistor TR3. The insulating layer IL may include a combination of an inorganic insulating layer and an organic insulating layer.

[0125] The first light emitting diode LED1, the second light emitting diode LED2, and the third light emitting diode LED3 may be disposed on the insulating layer IL. The first light emitting diode LED1, the second light emitting diode LED2, and the third light emitting diode LED3 may be connected to the first transistor TR1, the second transistor TR2, and the third transistor TR3, respectively. The first light emitting diode LED1, the second light emitting diode LED2, and the third light emitting diode LED3 may overlap with the pixel opening POP and may be spaced apart from the dummy opening DOP.

[0126] For example, the first pixel electrode AE1, the second pixel electrode AE2, and the third pixel electrode AE3 may be disposed on the insulating layer IL. Each of the first pixel electrode AE1, the second pixel electrode AE2, and the third pixel electrode AE3 may include a conductive material such as a metal, an alloy, a conductive metal nitride, a conductive metal oxide, a transparent conductive material, etc. Each of the first pixel electrode AE1, the second pixel electrode AE2, and the third pixel electrode AE3 may have a single-layer structure or a multi-layer structure including a plurality of conductive layers.

[0127] The first pixel electrode AE1 , the second pixel electrode AE2 , and the third pixel electrode AE3 may be connected to the first transistor TR1 , the second transistor TR2 , and the third transistor TR3 through contact holes formed in the insulating layer IL, respectively.

[0128] The pixel defining layer PDL may be disposed on the first pixel electrode AE1, the second pixel electrode AE2, and the third pixel electrode AE3. The pixel defining layer PDL may include an organic material. The pixel defining layer PDL may define a pixel opening over at least a portion of each of the first pixel electrode AE1, the second pixel electrode AE2, and the third pixel electrode AE3.

[0129] The light emitting layer EL may be disposed on the first pixel electrode AE1, the second pixel electrode AE2, and the third pixel electrode AE3 at the base of the pixel opening in the pixel defining layer PDL. In an embodiment, the light emitting layer EL may extend continuously across a plurality of pixels in the first area A1. In another embodiment, the light emitting layer EL may be separated from the light emitting layer EL of an adjacent pixel.

[0130] The light emitting layer EL may include at least one of an organic light emitting material and a quantum dot. In an embodiment, the light emitting layer EL may generate blue light. However, the present disclosure is not limited thereto. In another embodiment, the light emitting layer EL may generate red light or green light or light of different colors according to the pixel.

[0131] For example, the light emitting layer EL may include an organic material for emitting blue light. At this time, the light emitting layer EL may be formed as a multilayer and may have a structure in which a plurality of blue organic light emitting layers are stacked. For example, the light emitting layer EL may have a structure in which three blue organic light emitting layers are stacked.

[0132] For example, refer to Figure 7 , the light emitting layer EL according to the first embodiment may include a first organic layer EL1, a second organic layer EL2, a third organic layer EL3, and a fourth organic layer EL4. Each of the first organic layer EL1, the second organic layer EL2, and the third organic layer EL3 may include an organic material that generates blue light, and the fourth organic layer EL4 may include an organic material that generates green light.

[0133] However, the embodiment according to the present disclosure is not limited thereto, and the light emitting layer EL may have a structure in which a plurality of blue organic light emitting layers and organic light emitting layers emitting light of different colors are stacked.

[0134] For another example, see Figure 8, the light emitting layer EL' according to the second embodiment may include a first organic layer EL1', a second organic layer EL2', a third organic layer EL3', a fourth organic layer EL4', and a fifth organic layer EL5'. The first organic layer EL1' may include an organic material that generates red light, each of the second organic layer EL2' and the fourth organic layer EL4' may include an organic material that generates blue light, and each of the third organic layer EL3' and the fifth organic layer EL5' may include an organic material that generates green light.

[0135] Reference again Figure 6 , functional layers such as a hole injection layer, a hole transport layer, an electron transport layer, and an electron injection layer may be provided on the upper and / or lower portion of the light emitting layer EL. Alternatively, the functional layer may be omitted.

[0136] The common electrode CE may be disposed on the light emitting layer EL. The common electrode CE may include a conductive material such as a metal, an alloy, a conductive metal nitride, a conductive metal oxide, a transparent conductive material, etc. The common electrode CE may have a single-layer structure or a multi-layer structure including a plurality of conductive layers. In an embodiment, the common electrode CE may extend continuously across a plurality of pixels in the first area A1.

[0137] The first pixel electrode AE1, the light emitting layer EL and the common electrode CE may constitute a first light emitting diode LED11, the second pixel electrode AE2, the light emitting layer EL and the common electrode CE may constitute a second light emitting diode LED2, and the third pixel electrode AE3, the light emitting layer EL and the common electrode CE may constitute a third light emitting diode LED3.

[0138] The encapsulation layer ECL may be disposed on the display device layer DL. Specifically, the encapsulation layer ECL may be disposed on the common electrode CE.

[0139] The encapsulation layer ECL may cover the display device layer DL. For example, the encapsulation layer ECL may include at least one inorganic encapsulation layer and at least one organic encapsulation layer. Specifically, the encapsulation layer ECL may include a first inorganic encapsulation layer IEL1 disposed on the common electrode CE, an organic encapsulation layer OEL disposed on the first inorganic encapsulation layer IEL1, and a second inorganic encapsulation layer IEL2 disposed on the organic encapsulation layer OEL. However, the present disclosure is not limited thereto. Alternatively, the encapsulation layer ECL may be omitted.

[0140] Reference again Figure 2 , Figure 4 and Figure 5As described above, the filling layer FL may maintain a gap between the color conversion substrate 100 and the array substrate 200. In an embodiment, the filling layer FL may be disposed between the capping layer CP and the encapsulation layer ECL. For example, when the capping layer CP is omitted, the filling layer FL may be disposed between the light blocking layer BK, the first color conversion portion CCL1, the second color conversion portion CCL2, the transmission portion TL, and the encapsulation layer ECL. For example, when the encapsulation layer ECL is omitted, the filling layer FL may be disposed between the capping layer CP and the display device layer DL.

[0141] For example, the filling layer FL may include an organic material. For example, the organic material may include polyimide, acrylate, etc. These may be used alone or in combination with each other. However, the present disclosure is not limited thereto.

[0142] The display device according to the comparative example may not include an organic structure (e.g., the first organic structure ST1 or the second organic structure ST2). In other words, external light reflection of scattering particles (e.g., the first scattering particles CCL1c or the second scattering particles CCL2c) may occur in the entire light emitting area (e.g., the first transmission area LA1 or the second transmission area LA2). External light reflection in the entire light emitting area may cause the display quality of black to deteriorate.

[0143] Reducing the number of scattering particles to prevent deterioration in display quality of black may reduce the probability of reaction between incident light L1 and color conversion particles (eg, first color conversion particles CCL1d or second color conversion particles CCL2d). As the probability of reaction between incident light L1 and color conversion particles decreases, light efficiency may decrease.

[0144] On the other hand, if the number of scattering particles is increased to prevent the reduction in light efficiency, the display quality of black may be further deteriorated.

[0145] The display device 10 of the present disclosure may include an organic structure. When the organic structure is included, the scattering particles may be confined to the area where the organic structure is disposed (e.g., the first arrangement area SA1 or the second arrangement area SA2). In other words, the display quality of black may be improved by reducing the area where external light is reflected in the light emitting area.

[0146] In addition, since the display device 10 includes an organic structure, the optical path of the incident light L1 can be increased by as much as the height difference between the color conversion portion (e.g., the first color conversion portion CCL1 or the second color conversion portion CCL2) and the organic structure. Therefore, the reaction probability between the incident light L1 and the color conversion particles can be increased, which increases light efficiency.

[0147] In addition, since the display device 10 includes an organic structure, the first color conversion portion CCL1 may further include color conversion particles at a ratio that does not include scattering particles. When more color conversion particles are included, light efficiency of the display device 10 may be increased.

[0148] Fig. 9 , Fig.10 , Fig.11 , Fig.12 , Fig.13 , Fig.14 , Fig.15 and Fig.16 It is shown Figure 1 In the following, the above reference will be omitted or abbreviated. Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 Provide a description.

[0149] refer to Fig. 9 , a color filter layer CF may be formed on the first base substrate SUB1, a low refractive layer LR may be formed on the color filter layer CF, and a protection layer PL may be formed on the low refractive layer LR (S101).

[0150] The first base substrate SUB1 may include glass. However, the present disclosure is not limited thereto.

[0151] After forming the black matrices spaced apart from each other on the first base substrate SUB1, the first color filter pattern CF1, the second color filter pattern CF2, and the third color filter pattern CF3 may be formed between the black matrices. For example, the black matrix may be formed by a photolithography process. The color filter patterns (e.g., the first color filter pattern CF1, the second color filter pattern CF2, and the third color filter pattern CF3) may be formed using an inkjet printing method.

[0152] However, the present disclosure is not limited thereto. For example, the color filter pattern may be formed by a spin method in which liquid is sprayed on the first base substrate SUB1 and then applied by a rotating plate, a slit method in which the color filter pattern is uniformly sprayed on the entire surface by a nozzle. In this method, a colored photoresist is applied and then exposed to develop the photoresist.

[0153] The low refractive layer LR and the protective layer PL may be sequentially formed on the color filter layer CF. For example, the low refractive layer LR may be formed of a material having excellent total reflection and scattering properties, and may be formed to be thin in consideration of light extraction efficiency. For example, the low refractive layer LR may be formed to have a thickness of about several micrometers or less. For example, the protective layer PL may be formed of a material having high strength. However, the present disclosure is not limited thereto. The low refractive layer LR and the protective layer PL may be omitted.

[0154] refer to Fig.10 , a light blocking layer BK may be formed on the color filter layer CF. Specifically, the light blocking layer BK may be formed on the protection layer PL (S103).

[0155] The light blocking layer BK may be formed of a light blocking material. The light blocking layer BK may be formed by a photolithography process. Figure 1 , Figure 2 , Figure 3 and Figure 4 As described, the light blocking layer BK may be formed to be adjacent to only the light blocking region (eg, Figure 4 BA) without overlapping with the light-emitting area (e.g. Figure 4 That is, a pixel opening (eg, a pixel opening defining a light emitting area) may be formed in the light blocking layer BK. Figure 4 However, the present disclosure is not limited thereto.

[0156] refer to Fig.11 and Fig.12 , an organic material OL including scattering particles SCP may be formed in a pixel opening formed in the light blocking layer BK, and a mask MK1 may be set (S105). Next, a first organic structure ST1, a second organic structure ST2, and a transmissive portion TL may be formed through an exposure and development process (S107).

[0157] The organic material OL may be a photoresist. At this time, the scattering particles SCP may be mixed with the organic material OL and injected into the pixel opening. Here, the scattering particles SCP may correspond to Figure 4 The first scattering particles CCL1c, the second scattering particles CCL2c and / or the third scattering particles TLb.

[0158] For example, the mask MK1 may include a light-transmitting portion TPA and a light-blocking portion SPA. The light-transmitting portion TPA may be a portion that may transmit light, and the light-blocking portion SPA may be a portion that does not transmit light.

[0159] In an embodiment, the mask MK1 may be placed so that the light blocking portion SPA is formed at a position where the organic structure (e.g., the first organic structure ST1 and the second organic structure ST2) and the transmission portion TL are to be formed. However, the present disclosure is not limited thereto. The photoresist may be used as a negative type or a positive type. The mask MK1 may be a halftone mask including regions having various light transmittances.

[0160] However, the present disclosure is not limited thereto. The organic structure may be formed in various ways and with various materials.

[0161] refer to Fig.13 , the first color conversion portion CCL1 covers the first organic structure ST1, and the second color conversion portion CCL2 covers the second organic structure ST2. The first color conversion portion CCL1 and the second color conversion portion CCL2 may be formed in the pixel opening formed in the light blocking layer BK (S109). Since the first color conversion portion CCL1 and the second color conversion portion CCL2 have substantially the same structure, the following description will focus on the first color conversion portion CCL1.

[0162] For example, the first color conversion portion CCL1 may be formed by injecting ink mixed with the first color conversion particles CCL1d in the first dispersion portion CCL1a into the pixel opening and solidifying it.

[0163] When prepared in this manner, the first color conversion portion CCL1 may not include scattering particles (eg, first scattering particles CCL1c).

[0164] refer to Fig.14 , Fig.15 and Fig.16 , a capping layer CP may be formed on the light blocking layer BK and the color conversion layer CCL (S111). A spacer SPC may be formed on the capping layer CP (S113). In this way, a color conversion substrate 100 may be formed. Thereafter, it may be combined with the array substrate 200 (S115). At this time, the color conversion substrate 100 and the array substrate 200 may be combined together by being combined with a sealing member SLM, and a gap between the color conversion substrate 100 and the array substrate 200 may be filled. To this end, a filling layer FL may be formed between the color conversion substrate 100 and the array substrate 200. The color conversion substrate 100 and the array substrate 200 are sealed so that they are attached to form the display device 10.

[0165] However, the present disclosure is not limited thereto. For example, the capping layer CP, the spacer SPC, and the filling layer FL may be omitted.

[0166] Fig.17 is an enlarged view showing a color conversion substrate. Fig.18It is shown that Fig.17 A cross-sectional view of a color conversion substrate for a display device. Fig.19 is included in Fig.18 An enlarged view of a first organic structure in a display device.

[0167] For example, the display device 20 may be different from the above reference only in terms of the structure of the color conversion layer CCL′. Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 Therefore, in the following, the display device 10 described above will be omitted or abbreviated. Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 The description of the display device 10 overlaps the description.

[0168] refer to Figure 1 , Fig.17 , Fig.18 and Fig.19 , similar to the above reference Figure 1 As described, the display device 20 may include the first area A1 ′, the second area A2 , and the third area A3 in a plan view.

[0169] In a plan view, the second area A2 may surround the first area A1 ′. In a plan view, the third area A3 may surround the second area A2.

[0170] The first area A1' may be a display area where an image is displayed. The second area A2 and the third area A3 may be non-display areas where no image is displayed. Specifically, the second area A2 may be a sealed area. The sealed area may be an area where a sealing member SLM is provided. The third area A3 may be an external area. The external area may be an area where a circuit structure is placed.

[0171] The display device 20 may include a color conversion substrate 100 ′, a sealing member SLM, and an array substrate 200 .

[0172] The color conversion substrate 100' and the array substrate 200 may face each other. For example, the color conversion substrate 100' and the array substrate 200 may face each other in the first direction DR1.

[0173] The array substrate 200 may include a plurality of pixels. For example, the plurality of pixels may be arranged in the first area A1'. Each of the plurality of pixels may include a light emitting device (eg, Figure 6 The first light emitting diode LED1, the second light emitting diode LED2 and the third light emitting diode LED3).

[0174] In a cross-sectional view, the sealing member SLM may be disposed between the array substrate 200 and the color conversion substrate 100'. For example, the sealing member SLM may be disposed in the second area A2. Specifically, the sealing member SLM may be disposed in the second area A2 to surround the first area A1'.

[0175] The filling layer FL may be disposed between the array substrate 200 and the color conversion substrate 100'. For example, in a plan view, the filling layer FL may be disposed in the first area A1'.

[0176] In an implementation, the color conversion substrate 100 ′ may include a first base substrate SUB1 , a color filter layer CF, a low refractive layer LR, a protection layer PL, a light blocking layer BK, a color conversion layer CCL′, a capping layer CP, and a spacer SPC.

[0177] For example, the first area A1' may include a light emitting area and a light blocking area BA. Specifically, the light emitting area may include a first transmission area LA1', a second transmission area LA2, and a third transmission area LA3. The first transmission area LA1', the second transmission area LA2, and the third transmission area LA3 may be spaced apart from each other in a plan view and may be repeatedly arranged. However, the present disclosure is not limited thereto. The light emitting area may include two or four or more types of transmission areas.

[0178] The incident light L1 passing through the color conversion substrate 100' may be emitted to the outside of the display device 20. In the first transmission area LA1', the first transmission light L2R may be emitted as red light. In the second transmission area LA2, the second transmission light L2G may be emitted as green light. In the third transmission area LA3, the third transmission light L2B may be emitted as blue light. However, the present disclosure is not limited thereto.

[0179] The light blocking area BA may surround the first transmission area LA1', the second transmission area LA2, and the third transmission area LA3 in a plan view. For example, the light blocking area BA may have a lattice shape in a plan view. However, the present disclosure is not limited thereto.

[0180] In an embodiment, since the display device 20 includes the first area A1 ′, the second area A2, and the third area A3, the first base substrate SUB1 may also include the first area A1 ′, the second area A2, and the third area A3.

[0181] In an implementation, the color filter layer CF may be disposed on the first base substrate SUB1 (eg, in a negative direction of the first direction DR1 ).

[0182] The color filter layer CF may include a plurality of color filter patterns. For example, the color filter layer CF may include a first color filter pattern CF1, a second color filter pattern CF2, and a third color filter pattern CF3.

[0183] Each of the plurality of color filter patterns may overlap with a light emitting region. For example, the first color filter pattern CF1 may overlap with the third transmission region LA3. Therefore, the first color filter pattern CF1 may selectively transmit blue light. The second color filter pattern CF2 may overlap with the first transmission region LA1'. Therefore, the second color filter pattern CF2 may selectively transmit red light. The third color filter pattern CF3 may overlap with the second transmission region LA2. Therefore, the third color filter pattern CF3 may selectively transmit green light. The color filter layer CF may selectively transmit only light of a specific wavelength and emit light of various colors to the outside of the display device 20.

[0184] In the light blocking area BA, a portion of the first color filter pattern CF1, a portion of the second color filter pattern CF2, and a portion of the third color filter pattern CF3 may overlap each other. Therefore, the color filter layer CF may prevent color mixing between the adjacent first transmission area LA1', the second transmission area LA2, and the third transmission area LA3. However, the present disclosure is not limited thereto. For example, the color filter layer CF may be disposed only in the first area A1', and an additional light blocking member may be disposed in the second area A2 and the third area A3.

[0185] The light blocking layer BK may be disposed in the first area A1'. For example, the light blocking layer BK may define a light emitting area. In an embodiment, the light blocking layer BK may define a first transmission area LA1', a second transmission area LA2, and a third transmission area LA3. To this end, the light blocking layer BK may not overlap with the light emitting area (e.g., the first transmission area LA1', the second transmission area LA2, and the third transmission area LA3), and the light blocking layer BK may completely overlap with the light blocking area BA. For example, the light blocking layer BK may have a grid shape in a plan view.

[0186] A plurality of openings may be defined in the light blocking layer BK. For example, a pixel opening POP and a dummy opening DOP may be defined in the light blocking layer BK. The dummy opening DOP may be adjacent to the pixel opening POP.

[0187] The color conversion layer CCL′ may be disposed in the pixel opening POP of the light blocking layer BK in the first area A1′. The color conversion layer CCL′ may convert the color of the incident light L1.

[0188] In an embodiment, the color conversion layer CCL' may include a plurality of color conversion portions spaced apart from each other. For example, the color conversion layer CCL' may include a first color conversion portion CCL1', a second color conversion portion CCL2, and a transmissive portion TL.

[0189] In an embodiment, the color conversion layer CCL' may include a first organic structure ST1', a first color conversion portion CCL1', a second organic structure ST2, a second color conversion portion CCL2, and a transmissive portion TL.

[0190] In an embodiment, the first organic structure ST1' may overlap the first transmission area LA1' and may include first scattering particles CCL1c and an organic dispersion portion CCL1b'. The first scattering particles CCL1c may be dispersed and arranged within the organic dispersion portion CCL1b'.

[0191] In an embodiment, the organic dispersion portion CCL1b' may include a light-transmitting organic material. The light-transmitting organic material may be a material that can transmit visible light of all wavelengths. For example, the organic material may be a photoresist. In this case, the first organic structure ST1' may be formed by a photolithography process. However, the present disclosure is not limited thereto.

[0192] In an embodiment, the first color conversion portion CCL1' may be disposed in the first transmission area LA1' and may include first color conversion particles CCL1d and first dispersion portions CCL1a. The first color conversion particles CCL1d may be dispersed in the first dispersion portions CCL1a.

[0193] The first color conversion portion CCL1' may convert the incident light L1 into a red first transmission light L2R. The incident light L1 that is not converted by the first color conversion portion CCL1' may be blocked (e.g., absorbed or reflected) by the second color filter pattern CF2. Therefore, in the first transmission area LA1', the red first transmission light L2R passes through the first base substrate SUB1 and is emitted to the outside of the display device 20.

[0194] In an embodiment, the first color conversion portion CCL1' may cover the first organic structure ST1'. To this end, the first organic structure ST1' may be first formed in the pixel opening POP overlapping the first transmission area LA1' and defined by the light blocking layer BK, and then the first color conversion portion CCL1' may be formed to cover the first organic structure ST1'.

[0195] like Fig.19As shown in , in an embodiment, the first color conversion portion CCL1' may have a first height LE1, and the first organic structure ST1' may have a second height LE2'. The first height LE1 may be greater than the second heights LE2a, LE2b.

[0196] In an embodiment, the first scattering particles CCL1c may be disposed only in the first organic structure ST1', and the first color conversion particles CCL1d may be disposed only in the first dispersion portion CCL1a. In other words, the first scattering particles CCL1c may not be disposed in the first dispersion portion CCL1a.

[0197] To this end, the first organic structure ST1' may be formed of the organic dispersion portion CCL1b' including the first scattering particles CCL1c using a photolithography process. The first color conversion portion CCL1' may be formed of the first dispersion portion CCL1a including the first color conversion particles CCL1d using an inkjet process.

[0198] In other words, when the display device 20 includes the first organic structure ST1 ′, the space in which the first scattering particles CCL1 c are disposed may be limited (or reduced).

[0199] In an embodiment, the first organic structure ST1' may include a plurality of sub-organic structures. For example, the first organic structure ST1' may include a first sub-organic structure ST11, a second sub-organic structure ST22, and a third sub-organic structure ST33. The first sub-organic structure ST11 may be located in the first arrangement area SA1, the second sub-organic structure ST22 may be located in the second arrangement area SA2, and the third sub-organic structure ST33 may be located in the third arrangement area SA3. Therefore, the space in which the first scattering particles CCL1c are disposed may be limited to the first arrangement area SA1, the second arrangement area SA2, and the third arrangement area SA3.

[0200] In an embodiment, the plurality of sub-organic structures may have different heights. For example, the first sub-organic structure ST11 and the third sub-organic structure ST33 may be relatively closer to the light blocking layer BK than the second sub-organic structure ST22. In this case, the height LE2a of the first sub-organic structure ST11 and the third sub-organic structure ST33 may be greater than the height LE2b of the second sub-organic structure ST22. Therefore, the probability of the reaction between the incident light L1 and the first color conversion particles CCL1d may be increased, thereby increasing the light efficiency. In addition, the optical path of the incident light L1 may be diversified.

[0201] exist Fig.19 , the height of the sub-organic structure near the light blocking layer BK is shown to be greater than the height of the sub-organic structure near the central area of ​​the first transmission area LA1 '. Fig.19In an embodiment, the second height LE2a of the periphery is greater than the second height LE2b of the center. However, the present disclosure is not limited thereto. In another embodiment, Figure 5 As shown in , all organic structures ( Fig.19 The heights of the sub-organic structures ST11, ST22 and ST33 in the embodiment of the present invention may be the same. Alternatively, the heights of the sub-organic structures ST11, ST22 and ST33 may all be different.

[0202] In an embodiment, the organic dispersion layer TLa may include the same material as the organic dispersion portion CCL1b' included in the first organic structure ST1'. For example, the organic dispersion layer TLa included in the transmission portion TL may include a light-transmitting organic material. In this case, the first organic structure ST1', the second organic structure ST2, and the transmission portion TL may be simultaneously formed using the same process. Therefore, in an embodiment, the heights of the first organic structure ST1' and the transmission portion TL may be the same.

[0203] The array substrate 200 may include a second base substrate SUB2 , a display device layer DL, and an encapsulation layer ECL.

[0204] In an embodiment, the second base substrate SUB2 may face the first base substrate SUB1. The display device layer DL may be disposed on the second base substrate SUB2. The display device layer DL may include a buffer layer BFR, a first transistor TR1, a second transistor TR2, and a third transistor TR3, an insulating layer IL, a pixel defining layer PDL, and a first light emitting diode LED1, a second light emitting diode LED2, and a third light emitting diode LED3. The buffer layer BFR may be disposed on the second base substrate SUB2. The first transistor TR1, the second transistor TR2, and the third transistor TR3 may be disposed on the buffer layer BFR in the first area A1'. The insulating layer IL may cover the first transistor TR1, the second transistor TR2, and the third transistor TR3. The first light emitting diode LED1, the second light emitting diode LED2, and the third light emitting diode LED3 may be disposed on the insulating layer IL. The pixel defining layer PDL may be disposed on the first pixel electrode AE1, the second pixel electrode AE2, and the third pixel electrode AE3. The pixel defining layer PDL may define a pixel opening that exposes at least a portion of each of the first pixel electrode AE1, the second pixel electrode AE2, and the third pixel electrode AE3. The light emitting layer EL may be disposed on portions of the first pixel electrode AE1, the second pixel electrode AE2, and the third pixel electrode AE3 exposed by the pixel opening of the pixel defining layer PDL. The common electrode CE may be disposed on the light emitting layer EL. In an embodiment, the common electrode CE may extend continuously across a plurality of pixels in the first area A1'. The first pixel electrode AE1, the light emitting layer EL, and the common electrode CE may constitute a first light emitting diode LED1, the second pixel electrode AE2, the light emitting layer EL, and the common electrode CE may constitute a second light emitting diode LED2, and the third pixel electrode AE3, the light emitting layer EL, and the common electrode CE may constitute a third light emitting diode LED3. The encapsulation layer ECL may be disposed on the display device layer DL.

[0205] The filling layer FL may maintain the distance between the color conversion substrate 100' and the array substrate 200. In an embodiment, the filling layer FL may be disposed between the capping layer CP and the encapsulation layer ECL. For example, when the capping layer CP is omitted, the filling layer FL may be disposed between the light blocking layer BK, the first color conversion portion CCL1', the second color conversion portion CCL2, the transmission portion TL, and the encapsulation layer ECL. For example, when the encapsulation layer ECL is omitted, the filling layer FL may be disposed between the capping layer CP and the display device layer DL.

[0206] Since the display device 20 includes a plurality of sub-organic structures having different heights, the optical path of the incident light L1 may be varied in various ways. Therefore, light efficiency may be improved.

[0207] Fig. 20 , Fig.21 , Fig. 22 and Fig.23 It is shown Fig.18 A view of a method for manufacturing a display device.

[0208] In the following, the above references will be omitted or abbreviated. Figures 1 to 8 The display device 10 described above Figures 9 to 16 The manufacturing method of the display device 10 described above and the Figures 17 to 19 The structure of the display device 20 described is similar to that described above.

[0209] refer to Fig. 20 and Fig.21 , a color filter layer CF may be formed on the first base substrate SUB1, and a low refractive layer LR, a protective layer PL, and a light blocking layer BK may be sequentially formed on the color filter layer CF. An organic material OL including scattering particles SCP may be formed in a pixel opening formed in the light blocking layer BK, and a mask MK2 may be set (S105'). Next, a first organic structure ST1', a second organic structure ST2, and a transmissive portion TL may be formed through an exposure and development process (S107').

[0210] For example, the organic material OL may be a photoresist. At this time, the scattering particles SCP may be mixed with the organic material OL and injected into the pixel opening. Here, the scattering particles SCP may correspond to Fig.18 The first scattering particles CCL1c, the second scattering particles CCL2c and / or the third scattering particles TLb.

[0211] For example, the mask MK2 may include a light-transmitting portion TPA, a semi-transmitting portion STA, and a light-blocking portion SPA. The light-transmitting portion TPA may be a portion having the highest transmittance, the light-blocking portion SPA may be a portion having the lowest transmittance (i.e., the light-blocking portion SPA does not transmit light), and the semi-transmitting portion STA may be a portion having a transmittance greater than that of the light-blocking portion SPA and less than that of the light-transmitting portion TPA.

[0212] In an implementation, the mask MK2 may be placed such that the light blocking portion SPA is formed at a location where the organic structures (eg, the first and second organic structures ST1 ′ and ST2 ) and the transmission portion TL are to be formed.

[0213] In an embodiment, the organic structures may be formed to have different heights. For example, the height of the second sub-organic structure ST22 may be smaller than the heights of the first sub-organic structure ST11 and the third sub-organic structure ST33. In this case, the mask MK2 may be placed so that the light blocking portion SPA is located at a position where the first sub-organic structure ST11 and the third sub-organic structure ST33 are to be formed, and the semi-transmitting portion STA is located at a position where the second sub-organic structure ST22 is to be formed.

[0214] The photoresist may be used as a negative type or a positive type. The mask MK2 may be a half-tone mask including regions having various light transmittances.

[0215] Organic structures can be formed in a variety of ways and from a variety of materials.

[0216] refer to Fig. 22 , a first color conversion portion CCL1' covering the first organic structure ST1' and a second color conversion portion CCL2 covering the second organic structure ST2 may be formed in the pixel opening formed in the light blocking layer BK (S109'). Since the first color conversion portion CCL1' and the second color conversion portion CCL2 have substantially the same structure, the following description will focus on the first color conversion portion CCL1'.

[0217] For example, the first color conversion portion CCL1 ′ may be formed by injecting ink mixed with the first color conversion particles CCL1 d in the first dispersion portion CCL1 a into the pixel opening and solidifying it.

[0218] Through this process, the first color conversion portion CCL1' may not include scattering particles (eg, first scattering particles CCL1c).

[0219] refer to Fig.16 , Fig.18 and Fig.23 , a capping layer CP may be formed on the light blocking layer BK and the color conversion layer CCL'. A spacer SPC may be formed on the capping layer CP (S113'). Through this process, a color conversion substrate 100' may be formed. Then, it may be bonded to the array substrate 200. Similar to the above Fig.16 As described in the above, the color conversion substrate 100' and the array substrate 200 may be combined by the sealing member SLM, and the filling layer FL may be formed between the color conversion substrate 100' and the array substrate 200 to fill the gap between the color conversion substrate 100' and the array substrate 200. Through this process, the display device 20 may be formed.

[0220] However, the present disclosure is not limited thereto. For example, the capping layer CP, the spacer SPC, and the filling layer FL may be omitted.

[0221] In the above, Fig.23 As shown in FIG, there are a plurality of first organic structures ST1' covered by the first color conversion portion CCL1' and having different heights. However, the present disclosure is not limited thereto. For example, there may be a plurality of second organic structures ST2 having different heights. Alternatively, there may be a plurality of first organic structures ST1' having different heights and a plurality of second organic structures ST2 having different heights.

[0222] Fig.24 is an enlarged view showing a color conversion substrate. Fig.25 It is shown that Fig.24 A view of a color conversion substrate for a display device.

[0223] Fig.25 The display device 30 and Figures 1 to 8 The display device 10 and Figures 17 to 19 The difference of the display device 20 may mainly lie in the structure of the color conversion layer CCL". Therefore, in the following, the above references will be omitted or abbreviated. Figures 1 to 8 The display device 10 described above and the reference Figures 17 to 19 An overlapping description of the display device 20 is described.

[0224] refer to Figure 1 , Fig.24 and Fig.25 , in a plan view, the display device 30 may include a first area A1 ″, a second area A2, and a third area A3.

[0225] In a plan view, the second area A2 may surround the first area A1". In a plan view, the third area A3 may surround the second area A2.

[0226] The first area A1" may be a display area where an image is displayed. The second area A2 and the third area A3 may be non-display areas where no image is displayed. Specifically, the second area A2 may be a sealed area. The sealed area may be an area where a sealing member SLM is provided. The third area A3 may be an external area. The external area may be an area where a circuit structure is placed.

[0227] The display device 30 may include a color conversion substrate 100 ″, a sealing member SLM (see Figure 2 ) and array substrate 200.

[0228] The color conversion substrate 100 ″ and the array substrate 200 may face each other. For example, the color conversion substrate 100 ″ and the array substrate 200 may face each other in the first direction DR1 .

[0229] The array substrate 200 may include a plurality of pixels. For example, the plurality of pixels may be arranged in the first area A1″. Each of the plurality of pixels may include a light emitting device (eg, Figure 6 The first light emitting diode LED1, the second light emitting diode LED2 and the third light emitting diode LED3).

[0230] In a cross-sectional view, the sealing member SLM may be disposed between the array substrate 200 and the color conversion substrate 100 ″. For example, the sealing member SLM may be disposed in the second area A2. Specifically, the sealing member SLM may be disposed in the second area A2 to surround the first area A1 ″.

[0231] The filling layer FL may be disposed between the array substrate 200 and the color conversion substrate 100 ″. For example, the filling layer FL may be disposed in the first area A1 ″ in a plan view.

[0232] In an embodiment, the color conversion substrate 100 ″ may include a first base substrate SUB1, a color filter layer CF, a low refractive layer LR, a protection layer PL, a light blocking layer BK, a color conversion layer CCL ″, a capping layer CP, and a spacer SPC.

[0233] For example, the first area A1″ may include a light emitting area and a light blocking area BA. Specifically, the light emitting area may include a first transmission area LA1, a second transmission area LA2, and a third transmission area LA3′. The first transmission area LA1, the second transmission area LA2, and the third transmission area LA3′ may be spaced apart from each other in a plan view and may be repeatedly arranged. However, the present disclosure is not limited thereto. The light emitting area may include two or four or more types of transmission areas.

[0234] The incident light L1 passing through the color conversion substrate 100″ may be emitted to the outside of the display device 30. In the first transmission area LA1, the first transmission light L2R may be emitted as red light. In the second transmission area LA2, the second transmission light L2G may be emitted as green light. In the third transmission area LA3′, the third transmission light L2B may be emitted as blue light. However, the present disclosure is not limited thereto.

[0235] The light blocking area BA may surround the first, second, and third transmission areas LA1, LA2, and LA3' in a plan view. For example, the light blocking area BA may have a lattice shape in a plan view. However, the present disclosure is not limited thereto.

[0236] In an embodiment, since the display device 30 includes the first area A1 ″, the second area A2, and the third area A3, the first base substrate SUB1 may also include the first area A1 ″, the second area A2, and the third area A3.

[0237] In an implementation, the color filter layer CF may be disposed on the first base substrate SUB1 (eg, in a direction opposite to the first direction DR1 ).

[0238] The color filter layer CF may include a plurality of color filter patterns. For example, the color filter layer CF may include a first color filter pattern CF1, a second color filter pattern CF2, and a third color filter pattern CF3.

[0239] Each of the plurality of color filter patterns may overlap with a light emitting region. For example, the first color filter pattern CF1 may overlap with the third transmission region LA3'. Therefore, the first color filter pattern CF1 may selectively transmit blue light. The second color filter pattern CF2 may overlap with the first transmission region LA1. Therefore, the second color filter pattern CF2 may selectively transmit red light. The third color filter pattern CF3 may overlap with the second transmission region LA2. Therefore, the third color filter pattern CF3 may selectively transmit green light. The color filter layer CF may selectively transmit only light of a specific wavelength and emit light of various colors to the outside of the display device 30.

[0240] In the light blocking area BA, portions of the first color filter pattern CF1, portions of the second color filter pattern CF2, and portions of the third color filter pattern CF3 may overlap each other. Therefore, the color filter layer CF may prevent color mixing from occurring between the adjacent first transmission area LA1, second transmission area LA2, and third transmission area LA3'. However, the present disclosure is not limited thereto. For example, the color filter layer CF may be disposed only in the first area A1", and additional light blocking members may be disposed in the second area A2 and the third area A3.

[0241] The light blocking layer BK may be disposed in the first area A1". For example, the light blocking layer BK may define a light emitting area. In an embodiment, the light blocking layer BK may define boundaries of the first transmission area LA1, the second transmission area LA2, and the third transmission area LA3'. To this end, the light blocking layer BK may not overlap with the light emitting area (e.g., the first transmission area LA1, the second transmission area LA2, and the third transmission area LA3'), and the light blocking layer BK defines a light blocking area BA. In some embodiments, the light blocking layer BK may have a grid shape in a plan view.

[0242] A plurality of openings may be defined in the light blocking layer BK. For example, a pixel opening POP and a dummy opening DOP may be defined in the light blocking layer BK. The dummy opening DOP may be adjacent to the pixel opening POP.

[0243] The color conversion layer CCL" may be disposed in the pixel opening POP of the light blocking layer BK in the first area A1". The color conversion layer CCL" may convert the color of the incident light L1.

[0244] In an embodiment, the color conversion layer CCL" may include a plurality of color conversion portions spaced apart from each other. For example, the color conversion layer CCL" may include a first color conversion portion CCL1, a second color conversion portion CCL2, and a transmissive portion TL'.

[0245] In an embodiment, the color conversion layer CCL" may include a first organic structure ST1, a first color conversion portion CCL1, a second organic structure ST2, a second color conversion portion CCL2, and a transmissive portion TL'.

[0246] In an embodiment, the transmission portion TL' may include a plurality of sub-organic structures. For example, the transmission portion TL' may include a first sub-organic structure ST3a and a second sub-organic structure ST3b (also collectively referred to as a third organic structure ST3). Therefore, the space in which the third scattering particles TLb are disposed may be limited.

[0247] In an embodiment, the plurality of sub-organic structures may have different heights. Therefore, the optical path of the incident light L1 may be diversified.

[0248] In another embodiment, the plurality of sub-organic structures may have the same height. For example, the height of the plurality of sub-organic structures may be the same as the height of the first organic structure ST1 and the second organic structure ST2. In this case, the first organic structure ST1, the second organic structure ST2, and the plurality of sub-organic structures may be formed simultaneously (for example, the first organic structure ST1, the second organic structure ST2, and the plurality of sub-organic structures may be formed using one mask). To this end, the first organic structure ST1, the second organic structure ST2, and the transmission portion TL' may include the same material. For example, the transmission portion TL' may include a light-transmitting organic material.

[0249] The array substrate 200 may include a second base substrate SUB2 , a display device layer DL, and an encapsulation layer ECL.

[0250] The filling layer FL may maintain a gap between the color conversion substrate 100 ″ and the array substrate 200. In an embodiment, the filling layer FL may be disposed between the light blocking layer BK, the first color conversion portion CCL1, the second color conversion portion CCL2, the transmission portion TL′, and the display device layer DL.

[0251] Since the display device 30 of the present disclosure includes the transmissive portion TL' including a plurality of sub-organic structures (eg, the first sub-organic structure ST3a and the second sub-organic structure ST3b), the display quality of black may be improved by reducing the area where external light is reflected in the light emitting area.

[0252] Fig.26, Fig. 27 , Fig.28 and Fig.29 It is shown Fig.25 A view of a method for manufacturing a display device.

[0253] In the following, the above references will be omitted or abbreviated. Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 The display device 10 described above Fig. 9 , Fig.10 , Fig.11 , Fig.12 , Fig.13 , Fig.14 , Fig.15 and Fig.16 The manufacturing method of the display device 10 described above Fig.17 , Fig.18 and Fig.19 The display device 20 described above, and the Fig. 20 , Fig.21 , Fig. 22 and Fig.23 The description of the manufacturing method of the display device 20 is described overlapping the description.

[0254] refer to Fig.26 and Fig. 27 , a color filter layer CF, a low refractive layer LR, a protective layer PL, and a light blocking layer BK may be sequentially formed on the first base substrate SUB1. An organic material OL including scattering particles SCP may be formed in a pixel opening formed in the light blocking layer BK, and a mask MK3 may be set (S105"). Next, through exposure and development processes, a transmission portion TL' including a plurality of sub-organic structures, a first organic structure ST1, and a second organic structure ST2 may be formed (S107"). For example, the transmission portion TL' may include a first sub-organic structure ST3a and a second sub-organic structure ST3b.

[0255] For example, the organic material OL may be a photoresist. At this time, the scattering particles SCP may be mixed with the organic material OL and injected into the pixel opening. Here, the scattering particles SCP may correspond to Fig.25 The first scattering particles CCL1c, the second scattering particles CCL2c and / or the third scattering particles TLb.

[0256] For example, the mask MK3 may include a light-transmitting portion TPA and a light-blocking portion SPA. The light-transmitting portion TPA may be a portion having the highest light transmittance, and the light-blocking portion SPA may be a portion having the lowest light transmittance (ie, the light-blocking portion SPA does not transmit light).

[0257] In an implementation, the mask MK3 may be placed such that the light blocking portion SPA is formed at a location where the organic structure (eg, the first organic structure ST1 and the second organic structure ST2 ) and the plurality of sub-organic structures are to be formed.

[0258] However, the present disclosure is not limited thereto. The photoresist may be used as a negative type or a positive type. The mask MK3 may be a halftone mask including regions having various transmittances. Therefore, the transmission portion TL' may include a plurality of sub-organic structures having a height less than that of the light blocking layer BK.

[0259] However, the present disclosure is not limited thereto. The organic structure may be formed in various ways and with various materials.

[0260] refer to Fig.28 , the first color conversion portion CCL1 covers the first organic structure ST1, and the second color conversion portion CCL2 covers the second organic structure ST2. The first color conversion portion CCL1 and the second color conversion portion CCL2 may be formed in the pixel opening formed in the light blocking layer BK (S109"). The process of forming the color conversion layer CCL" is the same as the above process.

[0261] refer to Fig.16 , Fig.25 and Fig.29 , a capping layer CP may be formed on the light blocking layer BK and the color conversion layer CCL''. A spacer SPC may be formed on the capping layer CP (S113''). Through this process, a color conversion substrate 100'' may be formed. Similar to the above Fig.16 As described in the above, the color conversion substrate 100" may be bonded to the array substrate 200 through the sealing member SLM, and the filling layer FL may be formed between the color conversion substrate 100" and the array substrate 200 to fill the gap between the color conversion substrate 100" and the array substrate 200. Through this process, the display device 30 may be formed.

[0262] However, the present disclosure is not limited thereto. For example, one or more of the capping layer CP, the spacer SPC, and the filling layer FL may be omitted.

[0263] exist Fig.29 In the above description, it has been described that the transmission portion TL' includes two sub-organic structures having the same height. However, the present disclosure is not limited thereto. For example, the number of the plurality of sub-organic structures may be changed in various ways.

[0264] The color conversion substrate according to the embodiments of the present disclosure and the display device including the same may be applied to computers, notebooks, mobile phones, smart phones, smart tablets, PMPs, PDAs, MP3 players, and the like.

[0265] Although the display device and the method of manufacturing the same according to the embodiments have been described with reference to the accompanying drawings, the illustrated embodiments are examples and may be modified and changed by a person of ordinary skill in the relevant technical field without departing from the technical spirit described in the appended claims.

Claims

1. A color conversion substrate, characterized in that include: A substrate including a first transmission region and a second transmission region; A color filter layer is disposed on the substrate; a light blocking layer disposed on the color filter layer and defining the first transmission area and the second transmission area; a first organic structure in the first transmission region and including scattering particles; a first color conversion portion in the first transmission region and covering the first organic structure, the first color conversion portion including first color conversion particles; and A transmission part is in the second transmission area and includes the scattering particles.

2. The color conversion substrate according to claim 1, characterized in that The scattering particles are not present in the first color conversion portion.

3. The color conversion substrate according to claim 1, characterized in that The first color conversion portion has a first height, and The first organic structure has a second height different from the first height.

4. The color conversion substrate according to claim 3, characterized in that The first height is greater than the second height.

5. The color conversion substrate according to claim 1, characterized in that A height of the transmissive portion is equal to a height of the first organic structure.

6. The color conversion substrate according to claim 1, characterized in that The first organic structure is one of a plurality of first organic structures in the first transmission region, the plurality of first organic structures having the same height.

7. The color conversion substrate according to claim 1, characterized in that The first organic structure is one of a plurality of first organic structures in the first transmission region, the plurality of first organic structures having different heights.

8. The color conversion substrate according to claim 1, characterized in that The transmission part is one of a plurality of transmission parts in the second transmission area, and a height of the plurality of transmission parts is smaller than a height of the light blocking layer.

9. The color conversion substrate according to claim 1, characterized in that The transmission portion includes the same material as the first organic structure.

10. The color conversion substrate according to claim 9, characterized in that The transmissive portion and the first organic structure include a light-transmitting organic material.

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