Color conversion panel and display device including the same

Abstract

The present application relates to a display device and a color conversion panel. The display device may include a display panel and a color conversion panel overlapping the display panel. The color conversion panel may include: a substrate; a first color conversion pattern disposed on the substrate; a second color conversion pattern disposed on the substrate and partially overlapping the first color conversion pattern; a first reflective partition wall disposed between the first color conversion pattern and the second color conversion pattern; a first color filter disposed between the substrate and the first color conversion pattern; and a second color filter disposed between the substrate and the second color conversion pattern.

Description

Technical Field

[0001] Embodiments relate to display devices, and more particularly, to display devices including color conversion panels. Background Art

[0002] As information technology develops, the market for display devices, which are a connection medium between users and information, is also growing. Therefore, the use of flat panel display devices such as organic light emitting display devices, liquid crystal display devices, etc. is also increasing.

[0003] Recently, a display device including a color conversion panel has been proposed to implement a display device having high light efficiency. Summary of the invention

[0004] [Technical issues]

[0005] An object of the present invention is to provide a high-resolution display device.

[0006] It is an object of the present invention to provide a color conversion panel with improved light efficiency.

[0007] [Technical solution]

[0008] In order to achieve the above-mentioned purpose of the present invention, a display device according to an embodiment may include a display panel and a color conversion panel overlapping the display panel. The color conversion panel may include: a substrate; a first color conversion pattern disposed on the substrate; a second color conversion pattern disposed on the substrate and partially overlapping the first color conversion pattern; a first reflective partition wall disposed between the first color conversion pattern and the second color conversion pattern; a first color filter disposed between the substrate and the first color conversion pattern; and a second color filter disposed between the substrate and the second color conversion pattern.

[0009] In an implementation, the first reflective partition wall may cover a side portion of the first color conversion pattern.

[0010] In an implementation, the second color conversion pattern may not contact the first color conversion pattern.

[0011] In an implementation, the second color conversion pattern may contact the first color conversion pattern under the first reflective partition wall.

[0012] In an embodiment, the color conversion panel may further include a light blocking pattern partially overlapping the first color conversion pattern and the second color conversion pattern between the first color conversion pattern and the second color conversion pattern.

[0013] In an implementation, the light blocking pattern may be disposed between the substrate and the first color conversion pattern and between the substrate and the second color conversion pattern.

[0014] In an implementation, the light blocking pattern may be disposed on the first color conversion pattern and the second color conversion pattern.

[0015] In an implementation, a width of the light blocking pattern may be greater than a width of a region where the first color conversion pattern overlaps the second color conversion pattern.

[0016] In an embodiment, the color conversion panel may further include: a transmissive pattern disposed on the substrate and partially overlapping the first color conversion pattern and the second color conversion pattern.

[0017] In an embodiment, the color conversion panel may further include: a second reflective partition wall disposed between the first color conversion pattern and the transmissive pattern and between the second color conversion pattern and the transmissive pattern.

[0018] In an implementation, the second reflective partition wall may cover a side portion of the transmissive pattern.

[0019] In an implementation, the transmissive pattern may not contact the first color conversion pattern and the second color conversion pattern.

[0020] In an implementation, the transmissive pattern may contact the first color conversion pattern and the second color conversion pattern under the second reflective partition wall.

[0021] In an embodiment, the display panel may be configured to emit a first color light to the color conversion panel, and the first color conversion pattern may be configured to convert the first color light into a second color light. The second color conversion pattern may be configured to convert the first color light into a third color light, and the transmissive pattern may be configured to transmit the first color light.

[0022] In an embodiment, each of the first color conversion pattern and the second color conversion pattern may include at least one of a quantum dot and a phosphor.

[0023] In order to achieve the above-mentioned object of the present invention, a color conversion panel according to an embodiment may include: a substrate; a first color conversion pattern disposed on the substrate and configured to convert incident light into first color light; a second color conversion pattern disposed on the substrate, partially overlapping the first color conversion pattern, and configured to convert the incident light into second color light; a first reflective partition wall disposed between the first color conversion pattern and the second color conversion pattern; a first color filter disposed between the substrate and the first color conversion pattern and configured to block incident light that is not converted by the first color conversion pattern; and a second color filter disposed between the substrate and the second color conversion pattern and configured to block incident light that is not converted by the second color conversion pattern.

[0024] In an embodiment, the color conversion panel may further include: a transmissive pattern disposed on the substrate, partially overlapping the first color conversion pattern, and configured to transmit incident light.

[0025] In an embodiment, the color conversion panel may further include: a second reflective partition wall disposed between the first color conversion pattern and the transmissive pattern.

[0026] In an embodiment, the color conversion panel may further include a light blocking pattern partially overlapping the first and second color conversion patterns between the first and second color conversion patterns and partially overlapping the first and second color conversion patterns between the first and second color conversion patterns.

[0027] In an implementation, the light blocking pattern may be disposed between the substrate and the first color conversion pattern, between the substrate and the second color conversion pattern, and between the substrate and the transmissive pattern.

[0028] In an implementation, the light blocking pattern may be disposed on the first color conversion pattern, the second color conversion pattern, and the transmissive pattern.

[0029] In order to achieve the above-mentioned object of the present invention, a color conversion panel according to an embodiment may include: a substrate; a first color conversion pattern disposed on the substrate and configured to convert incident light into first color light; a second color conversion pattern disposed on the substrate, spaced apart from the first color conversion pattern, and configured to convert incident light into second color light; a first reflective partition wall covering a side portion of the first color conversion pattern; a second reflective partition wall covering a side portion of the second color conversion pattern; a first color filter disposed between the substrate and the first color conversion pattern and configured to block incident light that is not converted by the first color conversion pattern; and a second color filter disposed between the substrate and the second color conversion pattern and configured to block incident light that is not converted by the second color conversion pattern.

[0030] In an embodiment, the color conversion panel may further include: a transmissive pattern disposed on the substrate, spaced apart from the first color conversion pattern and the second color conversion pattern, and configured to transmit incident light.

[0031] In an embodiment, the color conversion panel may further include: a third reflective partition wall covering a side portion of the transmissive pattern.

[0032] In an embodiment, the color conversion panel may further include: a light blocking pattern partially overlapping the first color conversion pattern and the second color conversion pattern between the first color conversion pattern and the second color conversion pattern, partially overlapping the first color conversion pattern and the transmissive pattern between the first color conversion pattern and the transmissive pattern, and partially overlapping the second color conversion pattern and the transmissive pattern between the second color conversion pattern and the transmissive pattern.

[0033] In an implementation, the light blocking pattern may cover the first, second, and third reflective partition walls.

[0034] In an implementation, the second reflective partition wall may be spaced apart from the first reflective partition wall.

[0035] [Beneficial Effects]

[0036] In the color conversion panel of the display device according to the embodiment, the color conversion patterns may partially overlap and the reflective partition wall may be provided between the partially overlapping color conversion patterns, so that a high-resolution display device in which color conversion efficiency, light efficiency, etc. are improved may be provided.

[0037] In the color conversion panel according to the embodiment, the color conversion patterns may partially overlap and the reflective partition wall may be provided between the partially overlapping color conversion patterns, so that the color conversion efficiency, light efficiency, etc. of the color conversion panel may be improved and color mixing, etc. may be prevented. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 is a plan view showing a display device according to an embodiment.

[0039] Figure 2 It is shown along Figure 1 A cross-sectional view of an example of a display device taken along line II' in FIG.

[0040] Figure 3 is a cross-sectional view showing a color conversion panel according to an embodiment.

[0041] Figure 4 is a cross-sectional view showing a color conversion panel according to an embodiment.

[0042] Figure 5 is a cross-sectional view showing a color conversion panel according to an embodiment.

[0043] Figure 6 is a cross-sectional view showing a color conversion panel according to an embodiment.

[0044] Figure 7a , Figure 7b , Figure 7c , Figure 7d and Figure 7e is a cross-sectional view illustrating a method of manufacturing a color conversion panel according to an embodiment.

[0045] Figure 8 is a cross-sectional view showing a color conversion panel according to an embodiment.

[0046] Figure 9a , Figure 9b , Fig.9c and Figure 9d is a cross-sectional view illustrating a method of manufacturing a color conversion panel according to an embodiment.

[0047] Fig.10 It is shown along Figure 1 A cross-sectional view of an example of a display device taken along line II' in FIG. DETAILED DESCRIPTION

[0048] Hereinafter, a display device and a color conversion panel according to embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0049] Figure 1 is a plan view showing a display device according to an embodiment.

[0050] refer to Figure 1 , a plurality of pixels arranged in a substantially matrix form in a plan view may be defined in a display device according to an embodiment. "Pixel" refers to a single area for color display defined by dividing a display area in a plan view, and one pixel may display one predetermined basic color. In other words, one pixel may be the smallest unit capable of displaying a color independently of other pixels.

[0051] The pixel may include a first pixel PX1 displaying a first color, a second pixel PX2 displaying a second color having a peak wavelength shorter than that of the first color, and a third pixel PX3 displaying a third color having a peak wavelength shorter than that of the second color. In an embodiment, the first pixel PX1, the second pixel PX2, and the third pixel PX3 sequentially arranged in one direction may form a basic unit and may be repeatedly arranged in the direction.

[0052] In an embodiment, the first pixel PX1 may be a pixel displaying a first color (red) having a peak wavelength in the range of about 610 nm to about 650 nm, the second pixel PX2 may be a pixel displaying a second color (green) having a peak wavelength in the range of about 530 nm to about 570 nm, and the third pixel PX3 may be a pixel displaying a third color (blue) having a peak wavelength in the range of about 430 nm to about 470 nm.

[0053] Figure 2 It is shown along Figure 1 A cross-sectional view of an example of a display device taken along line II' in FIG.

[0054] refer to Figure 1 and Figure 2 , a display device according to an embodiment may include a display panel 100 and a color conversion panel 200. The display panel 100 may include a base substrate 110, a semiconductor layer 120, a gate insulating layer 130, a gate electrode 141, a gate line 142, an insulating interlayer 150, a source electrode 161, a drain electrode 162, a data line 163, a planarization layer 170, a first electrode 181, a pixel defining layer 190, an emission layer 182, and a second electrode 183. The display panel 100 may provide incident light LI to the color conversion panel 200.

[0055] The semiconductor layer 120 including amorphous silicon, polycrystalline silicon, oxide semiconductor, etc. may be disposed on the base substrate 110. The gate insulating layer 130 including silicon nitride, silicon oxide, etc. may be disposed on the semiconductor layer 120.

[0056] A gate electrode 141 and a gate line 142, each including a conductive material, may be disposed on the gate insulating layer 130. The gate electrode 141 may overlap the semiconductor layer 120, and the gate line 142 may transmit a gate signal and may extend in one direction. An insulating interlayer 150 including silicon nitride, silicon oxide, etc. may be disposed on the gate electrode 141 and the gate line 142.

[0057] A source electrode 161, a drain electrode 162, and a data line 163, each including a conductive material, may be disposed on the insulating interlayer 150. The source electrode 161 and the drain electrode 162 may be connected to the semiconductor layer 120, and the data line 163 may transmit a data signal and may extend in a direction crossing the gate line 142. The semiconductor layer 120, the gate electrode 141, the source electrode 161, and the drain electrode 162 may form a thin film transistor. A planarization layer 170 including an inorganic insulating material such as silicon nitride or silicon oxide and / or an organic insulating material such as polyimide may be disposed on the source electrode 161, the drain electrode 162, and the data line 163.

[0058] A first electrode 181 including a conductive material may be disposed on the planarization layer 170 . The first electrode 181 may be connected to the source electrode 161 or the drain electrode 162 . A pixel defining layer 190 including an opening exposing a portion of the first electrode 181 may be disposed on the planarization layer 170 .

[0059] The emission layer 182 may be disposed on the first electrode 181. The emission layer 182 may include a material that emits light of a third color. The second electrode 183 including a conductive material may be disposed on the emission layer 182. Based on the electric field formed between the first electrode 181 and the second electrode 183, the emission layer 182 may emit incident light LI of a third color above the display panel 100. In an embodiment, the emission layer 182 may be formed on the first electrode 181 and the pixel defining layer 190, however, the present invention is not limited thereto. In another embodiment, the emission layer 182 may be formed on the first electrode 181 in the opening of the pixel defining layer 190.

[0060] The color conversion panel 200 may overlap the display panel 100. The color conversion panel 200 may be located above the display panel 100. The color conversion panel 200 may include a substrate 210, a first color filter 221, a second color filter 222, a third color filter 223, a first color conversion pattern 231, a second color conversion pattern 232, a transmissive pattern 233, a first reflective partition wall 241, and a second reflective partition wall 242. The color conversion panel 200 may receive incident light L1 from the display panel 100, and may emit the first light L1, the second light L2, and the third light L3 upward.

[0061] Figure 3 is a cross-sectional view showing a color conversion panel according to an embodiment. For example, Figure 3 It can be shown Figure 2 An example of a color conversion panel 200 in FIG.

[0062] refer to Figure 1 , Figure 2 and Figure 3 , the color conversion panel 300 according to the embodiment may include a substrate 310, a first color filter 321, a second color filter 322, a third color filter 323, a first light blocking pattern 324, a first color conversion pattern 331, a second color conversion pattern 332, a transmissive pattern 333, a first reflective partition wall 341 and a second reflective partition wall 342.

[0063] The substrate 310 may be a transparent insulating substrate. For example, the substrate 310 may be formed of glass, quartz, translucent plastic, etc. In an implementation, the substrate 310 may be a flexible substrate.

[0064] The first color filter 321 may be disposed on the substrate 310. The first color filter 321 may be a wavelength selective filter that transmits light of a specific wavelength band and blocks light of another specific wavelength band. In other words, the first color filter 321 may selectively transmit only light of a partial wavelength band incident thereon. For example, the first color filter 321 may include a pigment or dye that absorbs light of a specific wavelength band.

[0065] In an embodiment, the first color filter 321 may selectively transmit light having a peak wavelength longer than a peak wavelength of incident light LI provided by the display panel 100, and may block the incident light LI. For example, the first color filter 321 may be disposed in the first pixel PX1 in a plan view, may transmit the first light L1 including the peak wavelength of the first color converted by the first color conversion pattern 331, and may absorb or reflect the incident light LI including the peak wavelength of the third color not converted by the first color conversion pattern 331.

[0066] The second color filter 322 may be disposed on the substrate 310. In an embodiment, the second color filter 322 may partially overlap the first color filter 321. For example, the second color filter 322 may be disposed on the substrate 310 while covering a portion of the first color filter 321. The second color filter 322 may be a wavelength selective filter that transmits light of a specific wavelength band and blocks light of another specific wavelength band. In other words, the second color filter 322 may selectively transmit only light of a partial wavelength band incident thereon. For example, the second color filter 322 may include a pigment or dye that absorbs light of a specific wavelength band.

[0067] In an embodiment, the second color filter 322 may selectively transmit light having a peak wavelength longer than a peak wavelength of the incident light LI provided by the display panel 100, and may block the incident light LI. For example, the second color filter 322 may be disposed in the second pixel PX2 in a plan view, may transmit the second light L2 including the peak wavelength of the second color converted by the second color conversion pattern 332, and may absorb or reflect the incident light LI including the peak wavelength of the third color not converted by the second color conversion pattern 332.

[0068] The third color filter 323 may be disposed on the substrate 310. In an embodiment, the third color filter 323 may partially overlap the first color filter 321 and the second color filter 322. The third color filter 323 may be disposed between the first color filter 321 and the second color filter 322 spaced apart from each other. For example, the first color filter 321 may be disposed on the substrate 310 while covering a portion of the third color filter 323, and the second color filter 322 may be disposed on the substrate 310 while covering another portion of the third color filter 323. The third color filter 323 may be a wavelength selective filter that transmits light of a specific wavelength band and blocks light of another specific wavelength band. In other words, the third color filter 323 may selectively transmit only light of a partial wavelength band incident thereon. For example, the third color filter 323 may include a pigment or dye that absorbs light of a specific wavelength band.

[0069] In an embodiment, the third color filter 323 may selectively transmit the incident light LI provided by the display panel 100. For example, the third color filter 323 may be disposed in the third pixel PX3 in a plan view, and may transmit the third light L3 including the peak wavelength of the third color corresponding to the incident light LI transmitted by the transmission pattern 333.

[0070] The first light blocking pattern 324 may be disposed on the substrate 310. In an embodiment, the first light blocking pattern 324 may partially overlap the first color filter 321 and the second color filter 322. The first light blocking pattern 324 may be disposed between the first color filter 321 and the second color filter 322 that partially overlap each other. For example, the first color filter 321 may be disposed on the substrate 310 while covering a portion of the first light blocking pattern 324, and the second color filter 322 may be disposed on the substrate 310 while covering another portion of the first light blocking pattern 324. The first light blocking pattern 324 may be a wavelength selective filter that transmits light of a specific wavelength band and blocks light of another specific wavelength band. In other words, the first light blocking pattern 324 may selectively transmit only light of a partial wavelength band incident thereon. For example, the first light blocking pattern 324 may include a material substantially the same as the third color filter 323.

[0071] The first color conversion pattern 331 may be disposed on the substrate 310, and the first color filter 321 is interposed between the first color conversion pattern 331 and the substrate 310. In other words, the first color filter 321 may be disposed between the substrate 310 and the first color conversion pattern 331. The first color conversion pattern 331 may convert the incident light LI into a transmission light having a color different from that of the incident light LI. In other words, the light transmitted through the first color conversion pattern 331 may be converted into light of a predetermined specific wavelength band. The first color conversion pattern 331 may include a first color conversion material 331p, which is a material that converts a peak wavelength of the incident light LI into a predetermined specific peak wavelength.

[0072] In an embodiment, the first color conversion pattern 331 may convert the color of the incident light LI provided by the display panel 100. For example, the first color conversion pattern 331 may convert the incident light LI including the peak wavelength of the third color into the first light L1 including the peak wavelength of the first color. The incident light LI provided by the display panel 100 may be converted into the first light L1 by the first color conversion pattern 331, and the first light L1 may be emitted to above the color conversion panel 300 through the first color filter 321. Therefore, the first pixel PX1 may display the first color.

[0073] The second color conversion pattern 332 may be disposed on the substrate 310, and the second color filter 322 is interposed between the second color conversion pattern 332 and the substrate 310. In other words, the second color filter 322 may be disposed between the substrate 310 and the second color conversion pattern 332. The second color conversion pattern 332 may convert the incident light LI into a transmission light having a color different from that of the incident light LI. In other words, the light transmitted through the second color conversion pattern 332 may be converted into light of a predetermined specific wavelength band. The second color conversion pattern 332 may include a second color conversion material 332p, which is a material that converts a peak wavelength of the incident light LI into a predetermined specific peak wavelength.

[0074] In an embodiment, the second color conversion pattern 332 may convert the color of the incident light LI provided by the display panel 100. For example, the second color conversion pattern 332 may convert the incident light LI including the peak wavelength of the third color into the second light L2 including the peak wavelength of the second color. The incident light LI provided by the display panel 100 may be converted into the second light L2 by the second color conversion pattern 332, and the second light L2 may be emitted to above the color conversion panel 300 by the second color filter 322. Therefore, the second pixel PX2 may display the second color.

[0075] In an embodiment, the height of second color conversion pattern 332 from substrate 310 may be substantially the same as the height of first color conversion pattern 331 from substrate 310. The height of first color conversion pattern 331 may be the distance from substrate 310 to the lower surface of first color conversion pattern 331, and the height of second color conversion pattern 332 may be the distance from substrate 310 to the lower surface of second color conversion pattern 332.

[0076] The first color conversion material 331p may be a material that emits light having a peak wavelength of a first color. The size of the first color conversion material 331p may be approximately to about However, the size of the first color conversion material 331p is not limited thereto. The second color conversion material 332p may be a material that emits light having a peak wavelength of the second color. The size of the second color conversion material 332p may be approximately to about However, the size of the second color conversion material 332p is not limited thereto.

[0077] In an embodiment, each of the first color conversion pattern 331 and the second color conversion pattern 332 may include at least one of quantum dots and phosphors. In other words, each of the first color conversion material 331p and the second color conversion material 332p may be at least one of quantum dots and phosphors.

[0078] When electrons transition from the conduction band to the valence band, quantum dots can emit light of a specific color. Quantum dots can have a core-shell structure. The core can be a semiconductor nanocrystal material. For example, the core can include silicon-based nanocrystals, II-VI-based compound nanocrystals, III-V-based compound nanocrystals, etc., but the material of the core is not limited thereto. For example, quantum dots can include a core containing cadmium selenide (CdSe), cadmium telluride (CdTe), cadmium sulfide (CdS) or indium phosphide (InP) and a shell containing zinc sulfide (ZnS).

[0079] Second color conversion pattern 332 may partially overlap first color conversion pattern 331. A portion of second color conversion pattern 332 may overlap a portion of first color conversion pattern 331. For example, the portion of second color conversion pattern 332 may be located below the portion of first color conversion pattern 331. When first color conversion pattern 331 and second color conversion pattern 332 partially overlap, a volume of first color conversion pattern 331 and a volume of second color conversion pattern 332 may increase. Therefore, a color conversion efficiency of first color conversion pattern 331 and a color conversion efficiency of second color conversion pattern 332 may be increased.

[0080] The transmissive pattern 333 may be disposed on the substrate 310, and the third color filter 323 may be interposed between the transmissive pattern 333 and the substrate 310. In other words, the third color filter 323 may be disposed between the substrate 310 and the transmissive pattern 333. The transmissive pattern 333 may transmit the incident light LI while maintaining the color of the incident light LI. In other words, the light transmitted through the transmissive pattern 333 may not be converted. The transmissive pattern 333 may include a transmissive material 333p.

[0081] In an embodiment, the transmissive pattern 333 may transmit the incident light LI provided by the display panel 100. For example, the transmissive pattern 333 may transmit the incident light LI including the peak wavelength of the third color, and may emit the third light L3 including the peak wavelength of the third color. The incident light LI provided by the display panel 100 may be transmitted through the transmissive pattern 333, and the third light L3 corresponding to the incident light LI may be emitted above the color conversion panel 300 through the third color filter 323. Therefore, the third pixel PX3 may display the third color.

[0082] In an embodiment, the height of transmissive pattern 333 from substrate 310 may be substantially the same as the height of first color conversion pattern 331 and the height of second color conversion pattern 332 from substrate 310. The height of transmissive pattern 333 may be the distance from substrate 310 to the lower surface of transmissive pattern 333.

[0083] The transmissive material 333p may be a light scattering material that causes scattering of light passing through the transmissive pattern 333. The transmissive material 333p is not particularly limited as long as it is a material capable of scattering or reflecting light, and the transmissive material 333p may be, for example, a metal oxide, an organic material, etc. For example, the metal oxide may include titanium oxide, zirconium oxide, aluminum oxide, indium oxide, zinc oxide, tin oxide, etc., and the organic material may include acrylic resin, polyurethane resin, etc.

[0084] The transmissive pattern 333 may partially overlap the first color conversion pattern 331 and the second color conversion pattern 332. A portion of the transmissive pattern 333 may overlap a portion of the first color conversion pattern 331, and another portion of the transmissive pattern 333 may overlap a portion of the second color conversion pattern 332. For example, the portion of the first color conversion pattern 331 may be located below the portion of the transmissive pattern 333, and the portion of the second color conversion pattern 332 may be located below the other portion of the transmissive pattern 333. When the transmissive pattern 333 partially overlaps the first color conversion pattern 331 and the second color conversion pattern 332, the volume of the first color conversion pattern 331, the volume of the second color conversion pattern 332, and the volume of the transmissive pattern 333 may increase. Therefore, the color conversion efficiency of the first color conversion pattern 331 and the color conversion efficiency of the second color conversion pattern 332 may be increased.

[0085] The first reflective partition wall 341 may be disposed between the first color conversion pattern 331 and the second color conversion pattern 332. For example, the first reflective partition wall 341 may be disposed on the second color filter 322 between the first color conversion pattern 331 and the second color conversion pattern 332 adjacent to each other. The first reflective partition wall 341 may reflect light emitted to the side portion 331s of the first color conversion pattern 331 and the side portion of the second color conversion pattern 332 to emit the light toward the substrate 310. Since the first reflective partition wall 341 is disposed between the first color conversion pattern 331 and the second color conversion pattern 332 partially overlapping each other, a color mixing defect due to a partial overlap between the first color conversion pattern 331 and the second color conversion pattern 332 may be prevented.

[0086] The first reflective partition wall 341 may cover the side 331s of the first color conversion pattern 331. The first reflective partition wall 341 may completely cover the side 331s of the first color conversion pattern 331 located between the first color conversion pattern 331 and the second color conversion pattern 332. The first reflective partition wall 341 may be formed along the contour of the side 331s of the first color conversion pattern 331 located between the first color conversion pattern 331 and the second color conversion pattern 332. The height of the first reflective partition wall 341 from the substrate 310 may be substantially equal to the height of the first color conversion pattern 331 from the substrate 310. The height of the first reflective partition wall 341 may be a distance from the substrate 310 to the lower surface of the first reflective partition wall 341. Since the first reflective partition wall 341 completely covers the side 331s of the first color conversion pattern 331, the second color conversion pattern 332 may not contact the first color conversion pattern 331. Therefore, the light emitting efficiency of the first color conversion pattern 331 and the second color conversion pattern 332 may be increased.

[0087] The second reflective partition wall 342 may be disposed between the first color conversion pattern 331 and the transmissive pattern 333 and between the second color conversion pattern 332 and the transmissive pattern 333. For example, the second reflective partition wall 342 may be disposed on the first color filter 321 between the first color conversion pattern 331 and the transmissive pattern 333 adjacent to each other and disposed on the second color filter 322 between the second color conversion pattern 332 and the transmissive pattern 333 adjacent to each other. The second reflective partition wall 342 may reflect light emitted to the side 331s of the first color conversion pattern 331, the side of the second color conversion pattern 332, and the side 333s of the transmissive pattern 333 to emit the light toward the substrate 310. Since the second reflective partition wall 342 is disposed between the first color conversion pattern 331 and the transmissive pattern 333 that partially overlap each other and between the second color conversion pattern 332 and the transmissive pattern 333 that partially overlap each other, a color mixing defect caused by a partial overlap between the first color conversion pattern 331 and the transmissive pattern 333 and a color mixing defect caused by a partial overlap between the second color conversion pattern 332 and the transmissive pattern 333 can be prevented.

[0088] The second reflective partition wall 342 may cover the side 333s of the transmissive pattern 333. The second reflective partition wall 342 may completely cover the side 333s of the transmissive pattern 333 located between the transmissive pattern 333 and the first color conversion pattern 331 and between the transmissive pattern 333 and the second color conversion pattern 332. The second reflective partition wall 342 may be formed along the contour of the side 333s of the transmissive pattern 333 located between the transmissive pattern 333 and the first color conversion pattern 331 and between the transmissive pattern 333 and the second color conversion pattern 332. The height of the second reflective partition wall 342 from the substrate 310 may be substantially equal to the height of the transmissive pattern 333 from the substrate 310. The height of the second reflective partition wall 342 may be the distance from the substrate 310 to the lower surface of the second reflective partition wall 342. Since the second reflective partition wall 342 completely covers the side 333s of the transmissive pattern 333, the transmissive pattern 333 may not contact the first color conversion pattern 331 and the second color conversion pattern 332. Therefore, the light emitting efficiency of the first color conversion pattern 331, the second color conversion pattern 332, and the transmissive pattern 333 may be increased.

[0089] The first reflective partition wall 341 and the second reflective partition wall 342 may include a material capable of reflecting light, for example, a material having a reflectivity of about 50% or more. In an embodiment, the first reflective partition wall 341 and the second reflective partition wall 342 may have a single-layer structure including aluminum (Al) or the like or a multi-layer structure including indium tin oxide (ITO)-silver (Ag)-ITO, titanium (Ti)-Al-Ti, aluminum manganese tin oxide (MTO), etc., however, the materials of the first reflective partition wall 341 and the second reflective partition wall 342 are not limited thereto. In an embodiment, the first reflective partition wall 341 and the second reflective partition wall 342 may include substantially the same material.

[0090] Since the first color conversion pattern 331 and the second color conversion pattern 332 of the color conversion panel 300 of the display device according to the embodiment partially overlap, the color conversion efficiency of the color conversion panel 300 can be improved. In addition, since the first reflective partition wall 341 is provided between the first color conversion pattern 331 and the second color conversion pattern 332 that partially overlap each other, the color mixing of the color conversion panel 300 can be prevented. Therefore, a high-resolution display device in which the color conversion efficiency is improved and the color mixing is prevented can be provided.

[0091] Figure 4 is a cross-sectional view showing a color conversion panel according to an embodiment.

[0092] refer to Figure 4, the color conversion panel 400 according to the embodiment may include a substrate 410, a first color filter 421, a second color filter 422, a third color filter 423, a first light blocking pattern 424, a first color conversion pattern 431, a second color conversion pattern 432, a transmissive pattern 433, a first reflective partition wall 441, and a second reflective partition wall 442. The first color conversion pattern 431 may include a first color conversion material 431p, the second color conversion pattern 432 may include a second color conversion material 432p, and the transmissive pattern 433 may include a transmissive material 433p. The same description will not be repeated with reference to FIG. Figure 3 The components of the color conversion panel 300 described herein are substantially the same or similar to those of the reference Figure 4 A description of the components of color conversion panel 400 is described.

[0093] The height of the first reflective partition wall 441 from the substrate 410 may be less than the height of the first color conversion pattern 431 from the substrate 410. The first reflective partition wall 441 may cover a portion of the side of the first color conversion pattern 431 close to the substrate 410, and may not cover another portion of the side of the first color conversion pattern 431 away from the substrate 410. Therefore, the second color conversion pattern 432 may contact the first color conversion pattern 431 below the first reflective partition wall 441. The second color conversion pattern 432 may cover the first reflective partition wall 441, and the first reflective partition wall 441 may not be exposed to the outside by the second color conversion pattern 432. Therefore, incident light may be prevented from being reflected by the first reflective partition wall 441 exposed to the outside.

[0094] The height of the second reflective partition wall 442 from the substrate 410 may be smaller than the height of the transmissive pattern 433 from the substrate 410. The second reflective partition wall 442 may cover a portion of the side of the transmissive pattern 433 close to the substrate 410, and may not cover another portion of the side of the transmissive pattern 433 away from the substrate 410. Therefore, the first color conversion pattern 431 and the second color conversion pattern 432 may contact the transmissive pattern 433 below the second reflective partition wall 442. The first color conversion pattern 431 and the second color conversion pattern 432 may cover the second reflective partition wall 442, and the second reflective partition wall 442 may not be exposed to the outside through the first color conversion pattern 431 and the second color conversion pattern 432. Therefore, incident light may be prevented from being reflected by the second reflective partition wall 442 exposed to the outside.

[0095] Figure 5 is a cross-sectional view showing a color conversion panel according to an embodiment.

[0096] refer to Figure 5, the color conversion panel 500 according to the embodiment may include a substrate 510, a first color filter 521, a second color filter 522, a third color filter 523, a first light blocking pattern 524, a first color conversion pattern 531, a second color conversion pattern 532, a transmissive pattern 533, a first reflective partition wall 541, a second reflective partition wall 542, and a second light blocking pattern 550. The first color conversion pattern 531 may include a first color conversion material 531p, the second color conversion pattern 532 may include a second color conversion material 532p, and the transmissive pattern 533 may include a transmissive material 533p. The same description will not be repeated with reference to FIG. Figure 3 The components of the color conversion panel 300 described herein are substantially the same or similar to those of the reference Figure 5 A description of the components of color conversion panel 500 is described.

[0097] The second light-blocking pattern 550 partially overlapping the first color conversion pattern 531, the second color conversion pattern 532, and the transmissive pattern 533 may be disposed between the first color conversion pattern 531, the second color conversion pattern 532, and the transmissive pattern 533. The second light-blocking pattern 550 may be disposed between the substrate 510 and the first color conversion pattern 531, between the substrate 510 and the second color conversion pattern 532, and between the substrate 510 and the transmissive pattern 533. For example, a portion of the second light-blocking pattern 550 between the first color conversion pattern 531 and the second color conversion pattern 532 may be disposed on the first light-blocking pattern 524, and another portion of the second light-blocking pattern 550 between the first color conversion pattern 531 and the transmissive pattern 533 and between the second color conversion pattern 532 and the transmissive pattern 533 may be disposed on the third color filter 523.

[0098] The second light blocking pattern 550 may separate the regions in which the first color conversion pattern 531, the second color conversion pattern 532, and the transmission pattern 533 are disposed. The second light blocking pattern 550 may block light transmission. The second light blocking pattern 550 may include a material capable of blocking light transmission, for example, an organic material including a colorant such as a black pigment, a black dye, etc., however, the material of the second light blocking pattern 550 is not limited thereto. For example, the colorant may include an inorganic pigment, such as carbon black, titanium black, lignin black, perylene black, cyanine black, etc., an iron / manganese composite oxide pigment, or a combination thereof.

[0099] The width of the second light-blocking pattern 550 may be greater than the width of the first area OA1 where the first color conversion pattern 531 and the second color conversion pattern 532 overlap, the width of the second area OA2 where the first color conversion pattern 531 and the transmissive pattern 533 overlap, and the width of the third area OA3 where the second color conversion pattern 532 and the transmissive pattern 533 overlap. For example, each of the width of the first area OA1, the width of the second area OA2, and the width of the third area OA3 may be about 5 μm to about 20 μm, and the width of the second light-blocking pattern 550 may be greater than about 20 μm. Since the width of the second light-blocking pattern 550 is greater than the width of the first area OA1, the width of the second area OA2, and the width of the third area OA3, the second light-blocking pattern 550 may prevent a color mixing defect between the first color conversion pattern 531, the second color conversion pattern 532, and the transmissive pattern 533 adjacent to each other.

[0100] Figure 6 is a cross-sectional view showing a color conversion panel according to an embodiment.

[0101] refer to Figure 6 , the color conversion panel 600 according to the embodiment may include a substrate 610, a first color filter 621, a second color filter 622, a third color filter 623, a first light blocking pattern 624, a first color conversion pattern 631, a second color conversion pattern 632, a transmissive pattern 633, a first reflective partition wall 641, a second reflective partition wall 642, a second light blocking pattern 650, and a third light blocking pattern 660. The first color conversion pattern 631 may include a first color conversion material 631p, the second color conversion pattern 632 may include a second color conversion material 632p, and the transmissive pattern 633 may include a transmissive material 633p. The same description will not be repeated with reference to FIG. Figure 5 The components of the color conversion panel 500 described herein are substantially the same or similar to those of the reference Figure 6 A description of the components of color conversion panel 600 is described.

[0102] The third light-blocking pattern 660 partially overlapping the first color conversion pattern 631, the second color conversion pattern 632, and the transmissive pattern 633 may be disposed between the first color conversion pattern 631, the second color conversion pattern 632, and the transmissive pattern 633. The third light-blocking pattern 660 may be disposed on the first color conversion pattern 631, the second color conversion pattern 632, and the transmissive pattern 633. For example, a portion of the third light-blocking pattern 660 between the first color conversion pattern 631 and the second color conversion pattern 632 may cover the first reflective partition wall 641 not covered by the second color conversion pattern 632, and another portion of the third light-blocking pattern 660 between the first color conversion pattern 631 and the transmissive pattern 633 and between the second color conversion pattern 632 and the transmissive pattern 633 may cover the second reflective partition wall 642 not covered by the first color conversion pattern 631 and the second color conversion pattern 632.

[0103] The third light blocking pattern 660 may separate regions in which the first color conversion pattern 631, the second color conversion pattern 632, and the transmission pattern 633 are disposed. The third light blocking pattern 660 may block light transmission. The third light blocking pattern 660 may include a material capable of blocking transmission of light, for example, an organic material including a colorant such as a black pigment, a black dye, etc., however, the material of the third light blocking pattern 660 is not limited thereto. In an embodiment, the third light blocking pattern 660 may include a material substantially the same as that of the second light blocking pattern 650.

[0104] The width of the third light-blocking pattern 660 may be greater than the width of the first area OA1 where the first color conversion pattern 631 and the second color conversion pattern 632 overlap, the width of the second area OA2 where the first color conversion pattern 631 and the transmissive pattern 633 overlap, and the width of the third area OA3 where the second color conversion pattern 632 and the transmissive pattern 633 overlap. For example, each of the width of the first area OA1, the width of the second area OA2, and the width of the third area OA3 may be about 5 μm to about 20 μm, and the width of the third light-blocking pattern 660 may be greater than about 20 μm. When the width of the third light-blocking pattern 660 is greater than the width of the first area OA1, the width of the second area OA2, and the width of the third area OA3, the third light-blocking pattern 660 may prevent a color mixing defect between the first color conversion pattern 631, the second color conversion pattern 632, and the transmissive pattern 633 adjacent to each other.

[0105] Figure 7a , Figure 7b , Figure 7c , Figure 7d and Figure 7e is a cross-sectional view showing a method of manufacturing a color conversion panel according to an embodiment. For example, Figure 7a , Figure 7b , Figure 7c , Figure 7d and Figure 7e Can show manufacturing Figure 6 Method of the color conversion panel 600.

[0106] refer to Figure 7a , a transmissive pattern 633 may be formed on the substrate 610 .

[0107] First, a third color filter 623 and a first light-blocking pattern 624 spaced apart from each other may be formed on a substrate 610. The third color filter 623 and the first light-blocking pattern 624 may be formed of substantially the same material and substantially simultaneously. Then, a second light-blocking pattern 650 may be formed on the third color filter 623 and the first light-blocking pattern 624. Then, a first color filter 621 may be formed between the third color filter 623 and the first light-blocking pattern 624 on a substrate 610 not covered by the third color filter 623. Then, a second color filter 622 may be formed between the third color filter 623 and the first light-blocking pattern 624 on a substrate 610 not covered by the first color filter 621 and the third color filter 623.

[0108] Then, a transmissive pattern 633 may be formed on the third color filter 623. For example, the transmissive pattern 633 may be formed to partially overlap the first color filter 621 and the second color filter 622. In an embodiment, the transmissive pattern 633 may be formed by a photolithography method. For example, a photosensitive resin including a transmissive material 633p may be applied to the substrate 610, and may be patterned to form the transmissive pattern 633. In an embodiment, the transmissive pattern 633 may be formed by an inkjet method. For example, an ink composition including a transmissive material 633p may be discharged onto the third color filter 623, and may be dried and cured to form the transmissive pattern 633. However, the method of forming the transmissive pattern 633 is not limited to the above-mentioned photolithography method and inkjet method, and the transmissive pattern 633 may be formed by various methods, such as a dispensing method, a printing method, a nanoimprint method, a slit coating method, and the like.

[0109] refer to Figure 7b The second reflective partition wall 642 covering the side of the transmissive pattern 633 may be formed on the substrate 610 on which the transmissive pattern 633 is formed. For example, the second reflective partition wall 642 may be formed on the first and second color filters 621 and 622 to cover the side of the transmissive pattern 633.

[0110] In an implementation, the second reflective partition wall 642 may be formed by chemical vapor deposition, sputtering, etc. For example, a conductive material may be deposited on the substrate 610 on which the transmissive pattern 633 is formed, and then may be patterned using a photolithography method to form the second reflective partition wall 642. The second reflective partition wall 642 may be formed along a contour of a side portion of the transmissive pattern 633.

[0111] refer to Figure 7c The first color conversion pattern 631 partially overlapping the transmissive pattern 633 may be formed on the substrate 610 on which the second reflective partition wall 642 is formed. For example, the first color conversion pattern 631 may be formed to partially overlap the second and third color filters 622 and 623.

[0112] In an embodiment, the first color conversion pattern 631 may be formed by a photolithography method. For example, a photosensitive resin including the first color conversion material 631p may be applied to the substrate 610 on which the second reflective partition wall 642 is formed, and may be patterned to form the first color conversion pattern 631. Alternatively, after the photosensitive resin is applied and patterned, the first color conversion material 631p may be injected to form the first color conversion pattern 631. In an embodiment, the first color conversion pattern 631 may be formed by an inkjet method. For example, an ink composition including the first color conversion material 631p may be discharged onto the first color filter 621, and may be dried and cured to form the first color conversion pattern 631. However, the method of forming the first color conversion pattern 631 is not limited to the above-mentioned photolithography method and inkjet method, and the first color conversion pattern 631 may be formed by various methods, such as a dispensing method, a printing method, a nanoimprint method, a slit coating method, and the like.

[0113] refer to Figure 7d , a first reflective partition wall 641 covering a side of the first color conversion pattern 631 may be formed on the substrate 610 on which the first color conversion pattern 631 is formed. For example, the first reflective partition wall 641 may be formed on the second color filter 622 to cover a side of the first color conversion pattern 631.

[0114] In an implementation, the first reflective partition wall 641 may be formed by chemical vapor deposition, sputtering, etc. For example, a conductive material may be deposited on the substrate 610 on which the first color conversion pattern 631 is formed, and may be patterned using a photolithography method to form the first reflective partition wall 641. The first reflective partition wall 641 may be formed along the contour of the side of the first color conversion pattern 631.

[0115] refer to Figure 7e, the second color conversion pattern 632 partially overlapping the transmissive pattern 633 and the first color conversion pattern 631 may be formed on the substrate 610 on which the first reflective partition wall 641 is formed.

[0116] In an embodiment, the second color conversion pattern 632 may be formed by a photolithography method. For example, a photosensitive resin including the second color conversion material 632p may be applied to the substrate 610 on which the first reflective partition wall 641 is formed, and may be patterned to form the second color conversion pattern 632. Alternatively, after the photosensitive resin is applied and patterned, the second color conversion material 632p may be injected to form the second color conversion pattern 632. In an embodiment, the second color conversion pattern 632 may be formed by an inkjet method. For example, an ink composition including the second color conversion material 632p may be discharged onto the second color filter 622, and may be dried and cured to form the second color conversion pattern 632. However, the method of forming the second color conversion pattern 632 is not limited to the above-mentioned photolithography method and inkjet method, and the second color conversion pattern 632 may be formed by various methods, such as a dispensing method, a printing method, a nanoimprint method, a slit coating method, and the like.

[0117] refer to Figure 6 , a third light-blocking pattern 660 may be formed on the first color conversion pattern 631 , the second color conversion pattern 632 , and the transmissive pattern 633 between the first color conversion pattern 631 , the second color conversion pattern 632 , and the transmissive pattern 633 .

[0118] Figure 8 is a cross-sectional view showing a color conversion panel according to an embodiment.

[0119] refer to Figure 8 , the color conversion panel 700 according to the embodiment may include a substrate 710, a first color filter 721, a second color filter 722, a third color filter 723, a first light blocking pattern 724, a first color conversion pattern 731, a second color conversion pattern 732, a transmissive pattern 733, a first reflective partition wall 741, a second reflective partition wall 742, a third reflective partition wall 743, a second light blocking pattern 750, and a third light blocking pattern 760. The first color conversion pattern 731 may include a first color conversion material 731p, the second color conversion pattern 732 may include a second color conversion material 732p, and the transmissive pattern 733 may include a transmissive material 733p. The same description will not be repeated with reference to FIG. Figure 6 The components of the color conversion panel 600 described herein are substantially the same or similar to those of reference Figure 8 A description of the components of the color conversion panel 700 is described.

[0120] The second color conversion pattern 732 may be spaced apart from the first color conversion pattern 731. In other words, the second color conversion pattern 732 may not overlap with the first color conversion pattern 731. For example, the width of the first color conversion pattern 731 may be smaller than the width of the first color filter 721, and the width of the second color conversion pattern 732 may be smaller than the width of the second color filter 722.

[0121] The transmissive pattern 733 may be spaced apart from the first and second color conversion patterns 731 and 732. In other words, the transmissive pattern 733 may not overlap the first and second color conversion patterns 731 and 732. For example, the width of the transmissive pattern 733 may be smaller than that of the third color filter 723.

[0122] The first reflective partition wall 741 may be disposed on the side 731s of the first color conversion pattern 731 to cover the side 731s of the first color conversion pattern 731. For example, the first reflective partition wall 741 may be disposed on the first color filter 721 while covering the side 731s of the first color conversion pattern 731. The first reflective partition wall 741 may reflect light emitted to the side 731s of the first color conversion pattern 731, and may emit the light toward the substrate 710. Therefore, the light emitting efficiency of the first color conversion pattern 731 may be increased.

[0123] In an embodiment, the first reflective partition wall 741 may completely cover the side 731s of the first color conversion pattern 731. The first reflective partition wall 741 may be formed along the contour of the side 731s of the first color conversion pattern 731. The height of the first reflective partition wall 741 from the substrate 710 may be substantially equal to the height of the first color conversion pattern 731 from the substrate 710. The height of the first color conversion pattern 731 may be the distance from the substrate 710 to the lower surface of the first color conversion pattern 731, and the height of the first reflective partition wall 741 may be the distance from the substrate 710 to the lower surface of the first reflective partition wall 741.

[0124] The second reflective partition wall 742 may be disposed on the side 732s of the second color conversion pattern 732 to cover the side 732s of the second color conversion pattern 732. For example, the second reflective partition wall 742 may be disposed on the second color filter 722 while covering the side 732s of the second color conversion pattern 732. The second reflective partition wall 742 may reflect light emitted to the side 732s of the second color conversion pattern 732, and may emit the light toward the substrate 710. Therefore, the light emitting efficiency of the second color conversion pattern 732 may be increased.

[0125] In an embodiment, the second reflective partition wall 742 may completely cover the side 732s of the second color conversion pattern 732. The second reflective partition wall 742 may be formed along the contour of the side 732s of the second color conversion pattern 732. The height of the second reflective partition wall 742 from the substrate 710 may be substantially the same as the height of the second color conversion pattern 732 from the substrate 710. The height of the second color conversion pattern 732 may be the distance from the substrate 710 to the lower surface of the second color conversion pattern 732, and the height of the second reflective partition wall 742 may be the distance from the substrate 710 to the lower surface of the second reflective partition wall 742.

[0126] In an implementation, the second reflective partition wall 742 may be spaced apart from the first reflective partition wall 741. In other words, a gap may be formed between the first reflective partition wall 741 and the second reflective partition wall 742.

[0127] The third reflective partition wall 743 may be disposed on the side 733s of the transmissive pattern 733 to cover the side 733s of the transmissive pattern 733. For example, the third reflective partition wall 743 may be disposed on the second light blocking pattern 750 while covering the side 733s of the transmissive pattern 733. The third reflective partition wall 743 may reflect light emitted to the side 733s of the transmissive pattern 733 and may emit the light toward the substrate 710. Therefore, the light emitting efficiency of the transmissive pattern 733 may be increased.

[0128] In an embodiment, the third reflective partition wall 743 may completely cover the side 733s of the transmissive pattern 733. The third reflective partition wall 743 may be formed along the contour of the side 733s of the transmissive pattern 733. The height of the third reflective partition wall 743 from the substrate 710 may be substantially the same as the height of the transmissive pattern 733 from the substrate 710. The height of the transmissive pattern 733 may be the distance from the substrate 710 to the lower surface of the transmissive pattern 733, and the height of the third reflective partition wall 743 may be the distance from the substrate 710 to the lower surface of the third reflective partition wall 743.

[0129] In an embodiment, the third reflective partition wall 743 may be spaced apart from the first reflective partition wall 741 and the second reflective partition wall 742. In other words, gaps may be formed between the first reflective partition wall 741 and the third reflective partition wall 743 and between the second reflective partition wall 742 and the third reflective partition wall 743, respectively.

[0130] The third light blocking pattern 760 partially overlapping the first color conversion pattern 731, the second color conversion pattern 732, and the transmissive pattern 733 may be disposed between the first color conversion pattern 731, the second color conversion pattern 732, and the transmissive pattern 733. The third light blocking pattern 760 may be disposed on the first color conversion pattern 731, the second color conversion pattern 732, and the transmissive pattern 733 while covering the first reflective partition wall 741, the second reflective partition wall 742, and the third reflective partition wall 743. In an embodiment, the third light blocking pattern 760 may fill a gap formed between the first reflective partition wall 741, the second reflective partition wall 742, and the third reflective partition wall 743 that are spaced apart from each other.

[0131] Figure 9a , Figure 9b , Fig.9c and Figure 9d is a cross-sectional view showing a method of manufacturing a color conversion panel according to an embodiment. For example, Figure 9a , Figure 9b , Fig.9c and Figure 9d Can show manufacturing Figure 8 Method of the color conversion panel 700.

[0132] Will not be repeated with reference Figure 7a , Figure 7b , Figure 7c , Figure 7d and Figure 7e The steps of the method of manufacturing the color conversion panel 600 described are substantially the same or similar to those of reference Figure 9a , Figure 9b , Fig.9c and Figure 9d A description of the steps of a method of manufacturing a color conversion panel 700 is described.

[0133] refer to Figure 9a , a transmissive pattern 733 may be formed on the substrate 710. The transmissive pattern 733 may be formed on the third color filter 723. For example, the transmissive pattern 733 may be formed so as not to overlap with the first color filter 721 and the second color filter 722.

[0134] refer to Figure 9b , a first color conversion pattern 731 spaced apart from the transmissive pattern 733 may be formed on the substrate 710 on which the transmissive pattern 733 is formed. The first color conversion pattern 731 may be formed on the first color filter 721. For example, the first color conversion pattern 731 may be formed not to overlap with the second color filter 722 and the third color filter 723.

[0135] refer to Fig.9c, a second color conversion pattern 732 spaced apart from the transmissive pattern 733 and the first color conversion pattern 731 may be formed on the substrate 710 on which the transmissive pattern 733 and the first color conversion pattern 731 are formed. The second color conversion pattern 732 may be formed on the second color filter 722. For example, the second color conversion pattern 732 may be formed not to overlap with the first color filter 721.

[0136] In the above-described method of manufacturing the color conversion panel 700, the first color conversion pattern 731 is formed after the transmissive pattern 733 is formed, and the second color conversion pattern 732 is formed after the first color conversion pattern 731 is formed, however, the method of manufacturing the color conversion panel 700 is not limited thereto. The first color conversion pattern 731, the second color conversion pattern 732, and the transmissive pattern 733 may be sequentially formed in any order, or may be substantially simultaneously formed.

[0137] refer to Figure 9d , a first reflective partition wall 741 covering a side of the first color conversion pattern 731, a second reflective partition wall 742 covering a side of the second color conversion pattern 732, and a third reflective partition wall 743 covering a side of the transmissive pattern 733 may be formed on the substrate 710 on which the transmissive pattern 733, the first color conversion pattern 731, and the second color conversion pattern 732 are formed. For example, the first reflective partition wall 741 may be formed on the first color filter 721 to cover a side of the first color conversion pattern 731, the second reflective partition wall 742 may be formed on the second color filter 722 to cover a side of the second color conversion pattern 732, and the third reflective partition wall 743 may be formed on the second light blocking pattern 750 to cover a side of the transmissive pattern 733.

[0138] In an embodiment, the first reflective partition wall 741, the second reflective partition wall 742, and the third reflective partition wall 743 may be formed of substantially the same material and substantially simultaneously. For example, a conductive material may be deposited on the substrate 710 on which the transmissive pattern 733, the first color conversion pattern 731, and the second color conversion pattern 732 are formed, and may be patterned using a photolithography method or the like to form the first reflective partition wall 741, the second reflective partition wall 742, and the third reflective partition wall 743. The first reflective partition wall 741, the second reflective partition wall 742, and the third reflective partition wall 743 may be formed along the contour of the side of the first color conversion pattern 731, the contour of the side of the second color conversion pattern 732, and the contour of the side of the transmissive pattern 733, respectively. Therefore, the manufacturing cost and manufacturing time for forming the first reflective partition wall 741, the second reflective partition wall 742, and the third reflective partition wall 743 may be reduced.

[0139] Fig.10 It is shown along Figure 1 A cross-sectional view of an example of a display device taken along line II' in FIG.

[0140] refer to Figure 1 and Fig.10 , the display device according to the embodiment may include a display panel 800 , a color conversion panel 900 , and a backlight unit 1000 .

[0141] The backlight unit 1000 may overlap the display panel 800. The backlight unit 1000 may be located below the display panel 800. The backlight unit 1000 may include a light source that generates light and a light guide plate that receives the light and guides the light toward the display panel 800. The backlight unit 1000 may provide incident light LI to the display panel 800. In an embodiment, the backlight unit 1000 may provide incident light LI of a third color having a peak wavelength in a range of about 430 nm to about 470 nm to the display panel 800.

[0142] The display panel 800 may include a base substrate 810, a polarization layer 820, a gate line 830, a gate insulating layer 840, a data line 850, a passivation layer 860, a first electrode 870, a liquid crystal layer 880, and a second electrode 890. The display panel 800 may control incident light LI provided from the backlight unit 1000, and may provide the incident light LI to the color conversion panel 900.

[0143] The polarizing layer 820 may be disposed between the backlight unit 1000 and the base substrate 810. The polarizing layer 820 may be a coating polarizing layer, a wire grid polarizer, or the like.

[0144] The gate electrode and the gate line 830 may be disposed on the base substrate 810 . The gate line 830 may transmit a gate signal and may extend in one direction. A gate insulating layer 840 including silicon nitride, silicon oxide, etc. may be disposed on the gate electrode and the gate line 830 .

[0145] The semiconductor layer, the source electrode, the drain electrode, and the data line 850 may be disposed on the gate insulating layer 840. The semiconductor layer may overlap with the gate electrode, the source electrode and the drain electrode may be connected to the semiconductor layer, and the data line 850 may transmit a data signal and extend in a direction crossing the gate line 830. The gate electrode, the semiconductor layer, the source electrode, and the drain electrode may form a thin film transistor. A passivation layer 860 including an inorganic insulating material such as silicon nitride or silicon oxide and / or an organic insulating material such as polyimide may be disposed on the semiconductor layer, the source electrode, the drain electrode, and the data line 850.

[0146] A first electrode 870 including a conductive material may be disposed on the passivation layer 860. The first electrode 870 may be connected to the source electrode or the drain electrode. A second electrode 890 including a conductive material may be disposed on the first electrode 870.

[0147] The liquid crystal layer 880 may be disposed between the first electrode 870 and the second electrode 890. The liquid crystal layer 880 may include liquid crystal molecules 885. The arrangement direction of the liquid crystal molecules 885 may be controlled by an electric field formed between the first electrode 870 and the second electrode 890. The liquid crystal layer 880 may control the transmittance of the incident light LI of the third color provided from the backlight unit 1000 based on the electric field formed between the first electrode 870 and the second electrode 890, and may emit the incident light LI upward.

[0148] The color conversion panel 900 may overlap the display panel 800. The color conversion panel 900 may be located above the display panel 800. The color conversion panel 900 may include a substrate 910, a first color filter 921, a second color filter 922, a third color filter 923, a first color conversion pattern 931, a second color conversion pattern 932, a transmissive pattern 933, a first reflective partition wall 941, and a second reflective partition wall 942. The color conversion panel 900 may receive incident light L1 provided from the backlight unit 1000 and controlled by the display panel 800, and may emit the first light L1, the second light L2, and the third light L3 upward.

[0149] [Industrial Applicability]

[0150] The display device according to the embodiment of the present invention may be applied to display devices included in computers, notebook computers, mobile phones, smart phones, smart boards, PMPs, PDAs, MP3 players, and the like.

[0151] Although the display device and the color conversion panel according to the embodiments of the present invention 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 of the present invention described in the appended claims.

[0152] [Description of Reference Signs]

[0153] 100, 800: Display panel

[0154] 200, 300, 400, 500, 600, 700, 900: Color conversion panel

[0155] 210, 310, 410, 510, 610, 710, 910: substrate

[0156] 221, 321, 421, 521, 621, 721, 921: First color filter

[0157] 222, 322, 422, 522, 622, 722, 922: Second color filter

[0158] 324, 424, 524, 624, 724: first light blocking pattern

[0159] 231, 331, 431, 531, 631, 731, 931: First color conversion pattern

[0160] 232, 332, 432, 532, 632, 732, 932: Second color conversion pattern

[0161] 233, 333, 433, 533, 633, 733, 933: Transmission pattern

[0162] 241, 341, 441, 541, 641, 741, 941: first reflective partition wall

[0163] 242, 342, 442, 542, 642, 742, 942: Second reflective partition wall

[0164] 743: Third reflective partition wall

[0165] 550, 650, 750: Second light blocking pattern

[0166] 660, 760: third light blocking pattern

Claims

1. Display device, include: Display panel; as well as A color conversion panel overlaps the display panel, and the color conversion panel includes: substrate; A first color conversion pattern is disposed on the substrate; a second color conversion pattern disposed on the substrate and partially overlapping the first color conversion pattern; a first reflective partition wall disposed between the first color conversion pattern and the second color conversion pattern; a transmissive pattern disposed on the substrate and partially overlapping both the first color conversion pattern and the second color conversion pattern; a first color filter disposed between the substrate and the first color conversion pattern; and A second color filter is disposed between the substrate and the second color conversion pattern.

2. The display device according to claim 1, in, The first reflective partition wall covers a side portion of the first color conversion pattern.

3. The display device according to claim 2, in, The second color conversion pattern does not contact the first color conversion pattern.

4. The display device according to claim 1, in, The second color conversion pattern contacts the first color conversion pattern under the first reflective partition wall.

5. The display device according to claim 1, in, The color conversion panel also includes: A light blocking pattern partially overlaps the first color conversion pattern and the second color conversion pattern between the first color conversion pattern and the second color conversion pattern.

6. The display device according to claim 5, in, The light blocking pattern is disposed between the substrate and the first color conversion pattern and between the substrate and the second color conversion pattern.

7. The display device according to claim 5, in, The light blocking pattern is disposed on the first color conversion pattern and the second color conversion pattern.

8. The display device according to claim 5, in, The light blocking pattern has a width greater than a width of a region where the first color conversion pattern overlaps with the second color conversion pattern.

9. The display device according to claim 1, in, The color conversion panel also includes: A second reflective partition wall is disposed between the first color conversion pattern and the transmissive pattern and between the second color conversion pattern and the transmissive pattern.

10. The display device according to claim 9, in, The second reflective partition wall covers a side portion of the transmissive pattern.

11. The display device according to claim 10, in, The transmissive pattern does not contact the first color conversion pattern and the second color conversion pattern.

12. The display device according to claim 9, in, The transmissive pattern contacts the first color conversion pattern and the second color conversion pattern under the second reflective partition wall.

13. The display device according to claim 1, in, The display panel is configured to emit a first color light toward the color conversion panel, wherein the first color conversion pattern is configured to convert the first color light into a second color light, wherein the second color conversion pattern is configured to convert the first color light into a third color light, and Wherein, the transmission pattern is configured to transmit the first color light.

14. The display device according to claim 1, in, Each of the first color conversion pattern and the second color conversion pattern includes at least one of a quantum dot and a phosphor.

15. Color conversion panel, include: substrate; a first color conversion pattern disposed on the substrate and configured to convert incident light into first color light; a second color conversion pattern disposed on the substrate, partially overlapping the first color conversion pattern, and configured to convert the incident light into a second color light; a transmissive pattern disposed on the substrate and partially overlapping both the first color conversion pattern and the second color conversion pattern; a first reflective partition wall disposed between the first color conversion pattern and the second color conversion pattern; a first color filter disposed between the substrate and the first color conversion pattern and configured to block the incident light that is not converted by the first color conversion pattern; as well as A second color filter is disposed between the substrate and the second color conversion pattern and is configured to block the incident light that is not converted by the second color conversion pattern.

16. The color conversion panel according to claim 15, further comprising: include: The second reflective partition wall is disposed between the first color conversion pattern and the transmissive pattern.

17. The color conversion panel according to claim 15, further comprising: include: A light blocking pattern partially overlaps the first color conversion pattern and the second color conversion pattern between the first color conversion pattern and the second color conversion pattern, and partially overlaps the first color conversion pattern and the transmissive pattern between the first color conversion pattern and the transmissive pattern.

18. The color conversion panel according to claim 17, in, The light blocking pattern is disposed between the substrate and the first color conversion pattern, between the substrate and the second color conversion pattern, and between the substrate and the transmission pattern.

19. The color conversion panel according to claim 17, in, The light blocking pattern is disposed on the first color conversion pattern, the second color conversion pattern, and the transmissive pattern.

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