Color conversion substrate and display device including the same

Abstract

A color conversion substrate and a display device including the same are provided. The color conversion substrate includes a base portion in which a first light-transmissive region, a second light-transmissive region spaced apart from the first light-transmissive region in a first direction, and a first light-blocking region between the first light-transmissive region and the second light-transmissive region are defined, a first color filter disposed on one surface of the base portion and overlapping the first light-transmissive region, a second color filter disposed on one surface of the base portion and overlapping the second light-transmissive region, a light-blocking pattern overlapping the first light-blocking region and disposed on one surface of the base portion, and a light-transmissive pattern disposed on the first color filter, the second color filter, and the light-blocking pattern, wherein the first color filter and the second color filter include a coloring material of a first color.

Description

Technical Field

[0001] This disclosure relates to a color conversion substrate and a display device including the color conversion substrate. Background Technology

[0002] With the development of multimedia technology, display devices have become increasingly important. As a result, various display devices such as liquid crystal displays (LCDs) and organic light-emitting diode (OLEDs) displays are now in use.

[0003] Self-emissive display devices, as a type of display device, include self-emissive elements such as OLEDs. Each of the self-emissive elements may include two electrodes facing each other and an emitting layer inserted between the two electrodes. In the case of an OLED, electrons and holes from the two electrodes can recombine together in the emitting layer to generate excitons, and in response to the transition of the excitons from an excited state to a ground state, light can be emitted.

[0004] Self-emissive display devices do not require a separate light source and can therefore be realized as low-power, thin and light display devices with high-quality characteristics such as wide viewing angles, high brightness and contrast, and fast response speed, attracting attention as next-generation display devices. Summary of the Invention

[0005] [Technical Issues]

[0006] This disclosure provides a color conversion substrate with an improved inkjet process distribution.

[0007] This disclosure also provides a display device including a color conversion substrate, thereby enabling improved display quality.

[0008] It should be noted that the aspects of this disclosure are not limited thereto, and other aspects not mentioned herein will be apparent to those skilled in the art from the following description.

[0009] According to embodiments of the present disclosure, a color conversion substrate includes: a substrate portion defining a first light-transmitting area, a second light-transmitting area spaced apart from the first light-transmitting area in a first direction, and a first light-shielding area located between the first light-transmitting area and the second light-transmitting area; a first color filter placed on a surface of the substrate portion and overlapping the first light-transmitting area; a second color filter placed on a surface of the substrate portion and overlapping the second light-transmitting area; a light-shielding pattern overlapping the first light-shielding area and placed on a surface of the substrate portion; and a light-transmitting pattern placed on the first color filter, the second color filter, and the light-shielding pattern, wherein the first color filter and the second color filter include a colorant of a first color.

[0010] The third light-transmitting area, which is spaced apart from the second light-transmitting area in the first direction, and the second light-shielding area located between the second light-transmitting area and the third light-transmitting area, can be further defined, and the color conversion substrate can further include a third color filter, a first light-shielding member, and a first wavelength conversion pattern. The third color filter is placed on a surface of the substrate portion, overlaps with the third light-transmitting area, and includes a colorant of a second color different from the first color. The first light-shielding member is placed between the second color filter and the third color filter and overlaps with the second light-shielding area. The first wavelength conversion pattern is placed on the third light-transmitting area.

[0011] The width of the light-transmitting pattern in the first direction can be greater than the width of the first wavelength conversion pattern in the first direction.

[0012] The color conversion substrate may further include a barrier placed in a second light-shielding area and arranged between the light-transmitting pattern and the first wavelength conversion pattern.

[0013] The thickness of the light-shielding pattern can be greater than the thickness of the first light-shielding component but less than the thickness of the barrier.

[0014] The light-blocking pattern can be arranged on one surface of the base portion and in contact with the first and second color filters.

[0015] The light-blocking pattern can be arranged to be spaced apart from a surface of the base portion, and at least a portion of the side surface of the light-blocking pattern can be in contact with the light-transmitting pattern.

[0016] The barrier can extend in a second direction that intersects with the first direction.

[0017] The color conversion substrate may further include a fifth light-transmitting region spaced apart from the first light-transmitting region in a second direction, wherein a light-shielding pattern may be arranged between the first light-transmitting region and the fifth light-transmitting region.

[0018] The fourth light-transmitting area, which is spaced apart from the third light-transmitting area in the first direction, and the third light-shielding area located between the third light-transmitting area and the fourth light-transmitting area, can be further defined, and the color conversion substrate can further include a fourth color filter, a second light-shielding member, and a second wavelength conversion pattern. The fourth color filter is placed on a surface of the substrate portion, overlaps with the fourth light-transmitting area, and includes a colorant of a third color that is different from the first color and the second color. The second light-shielding member is placed between the third color filter and the fourth color filter and overlaps with the third light-shielding area. The second wavelength conversion pattern is placed on the fourth light-transmitting area.

[0019] One side of the second color filter can contact the light-blocking pattern, and the other side of the second color filter can contact the first light-blocking member. One side of the third color filter can contact the first light-blocking member, and the other side of the third color filter can contact the second light-blocking member.

[0020] At least a portion of one side of the third color filter can be placed in the second light-shielding area, and at least a portion of the other side of the third color filter can be placed in the third light-shielding area.

[0021] The color conversion substrate may further include a barrier placed in a third light-shielding area and arranged between the first wavelength conversion pattern and the second wavelength conversion pattern.

[0022] The first and second color filters allow light of the first color to pass through while blocking the transmission of light of the second and third colors. The third color filter allows light of the second color to pass through while blocking the transmission of light of the third and first colors. The fourth color filter allows light of the third color to pass through while blocking the transmission of light of the first and second colors.

[0023] A third light-transmitting area spaced apart from the first light-transmitting area in a first direction, a fourth light-transmitting area spaced apart from the third light-transmitting area in a second direction intersecting the first direction, and a sixth light-transmitting area spaced apart from the third light-transmitting area in the first direction can be further defined. The color conversion substrate can further include a third color filter, a fourth color filter, and a sixth color filter. The third color filter is placed on a surface of the substrate portion, overlaps with the third light-transmitting area, and includes a colorant of a second color different from the first color. The fourth color filter is placed on a surface of the substrate portion, overlaps with the fourth light-transmitting area, and includes a colorant of a third color different from the first color and the second color. The sixth color filter is placed on a surface of the substrate portion, overlaps with the sixth light-transmitting area, and includes a colorant of a second color. A light-shielding pattern can be further arranged between the third light-transmitting area and the sixth light-transmitting area.

[0024] The seventh light-transmitting area, which is spaced apart from the fourth light-transmitting area in the second direction, can be further defined. The color conversion substrate can further include a seventh color filter, which is placed on a surface of the substrate portion, overlaps with the seventh light-transmitting area, and includes a colorant of the third color. A light-blocking pattern can be further arranged between the fourth light-transmitting area and the seventh light-transmitting area.

[0025] According to an embodiment of the present disclosure, a color conversion substrate includes: a substrate portion; a first light-transmitting area defined in the substrate portion; a second light-transmitting area spaced apart from the first light-transmitting area in a first direction; and a third light-transmitting area spaced apart between the first light-transmitting area and the second light-transmitting area in a second direction intersecting the first direction; a first color filter placed on a surface of the substrate portion, overlapping the first light-transmitting area, and including a colorant of a first color; a second color filter placed on a surface of the substrate portion, overlapping the second light-transmitting area, and including a colorant of a second color; and a third color filter placed on a surface of the substrate portion, overlapping the third light-transmitting area, and including a colorant of a third color, wherein a fourth light-transmitting area spaced apart from the first light-transmitting area in a second direction is further defined in the substrate portion, and the color conversion substrate further includes a fourth color filter and a light-shielding pattern, the fourth color filter being placed on a surface of the substrate portion, overlapping the fourth light-transmitting area, and including a colorant of the first color, and the light-shielding pattern being placed between the first light-transmitting area and the fourth light-transmitting area.

[0026] The substrate portion may further define a fifth light-transmitting region spaced apart from the second light-transmitting region in a first direction. The color conversion substrate may further include a fifth color filter, which is placed on a surface of the substrate portion, overlaps with the fifth light-transmitting region, and includes a colorant of the second color. A light-blocking pattern may further be placed between the second light-transmitting region and the fifth light-transmitting region.

[0027] The color conversion substrate may further include a barrier arranged around a first light-transmitting region and a fourth light-transmitting region, and a first wavelength conversion pattern arranged on a first color filter, a fourth color filter, and a light-shielding pattern in the region surrounded by the barrier.

[0028] The substrate portion may further define a sixth light-transmitting region spaced apart from the third light-transmitting region in a second direction. The barrier may be further arranged to surround the third light-transmitting region and the sixth light-transmitting region. The light-shielding pattern may be further placed between the third light-transmitting region and the sixth light-transmitting region. The color conversion substrate may further include a sixth color filter and a light-transmitting pattern. The sixth color filter is placed on a surface of the substrate portion, overlaps with the sixth light-transmitting region, and includes a colorant of the third color. The light-transmitting pattern is arranged on the third color filter, the sixth color filter, and the light-shielding pattern in the area surrounded by the barrier.

[0029] According to an embodiment of the present disclosure, a display device includes: a display substrate, defining a first emitting region, a second emitting region spaced apart from the first emitting region in a first direction, and a non-emitting region located between the first emitting region and the second emitting region; and a color conversion substrate disposed on the display substrate, wherein the color conversion substrate includes: a substrate portion, defining a first light-transmitting region, a second light-transmitting region spaced apart from the first light-transmitting region in a first direction, and a first light-shielding region located between the first light-transmitting region and the second light-transmitting region; a first color filter disposed on a surface of the substrate portion and overlapping the first light-transmitting region; a second color filter disposed on a surface of the substrate portion and overlapping the second light-transmitting region; a light-shielding pattern overlapping the first light-shielding region and disposed on a surface of the substrate portion; and a light-transmitting pattern disposed on the first color filter, the second color filter, and the light-shielding pattern, wherein the first color filter and the second color filter include a colorant of a first color.

[0030] The first light-transmitting area can overlap with the first emission area, and the second light-transmitting area can overlap with the second emission area. The first emission area and the second emission area can emit light of the first color, and the emitted light can be incident on the light-transmitting pattern.

[0031] At least some of the emitted light emitted from the first emission area and incident on the light-transmitting pattern can be output from the first light-transmitting area, and at least some of the emitted light emitted from the first emission area and incident on the light-transmitting pattern can be blocked by the light-blocking pattern.

[0032] The display substrate may further define a third emission region spaced apart from the second emission region in a first direction, and the color conversion substrate may define a third light-transmitting region spaced apart from the second light-transmitting region in a first direction and a second light-shielding region placed between the second light-transmitting region and the third light-transmitting region. The color conversion substrate may further include a third color filter, a first light-shielding member, and a first wavelength conversion pattern. The third color filter is placed on a surface of the substrate portion, overlaps with the third light-transmitting region, and includes a colorant of a second color different from the first color. The first light-shielding member is placed between the second color filter and the third color filter and overlaps with the second light-shielding region. The first wavelength conversion pattern is placed on the third light-transmitting region.

[0033] The display device may further include a barrier placed in a second light-shielding area and arranged between the light-transmitting pattern and the first wavelength conversion pattern.

[0034] The third emission region can emit light of the first color, and the emitted light can be incident on the first wavelength conversion pattern.

[0035] Details of other embodiments are included in the detailed description and the accompanying drawings.

[0036] [Beneficial Effects]

[0037] According to embodiments of this disclosure, the color conversion substrate includes identical light-transmitting areas arranged adjacent to each other and a light-shielding pattern placed between the light-transmitting areas. Because the identical light-transmitting areas are arranged adjacent to each other, ink impact accuracy during inkjet printing can be improved, and the process can be simplified, allowing for improved distribution in inkjet printing processes using multiple nozzles. Furthermore, since the display device includes this color conversion substrate, the display quality of the display device can be improved.

[0038] The effects of the embodiments are not limited to the examples described above, and many more different effects are included in this disclosure. Attached Figure Description

[0039] Figure 1 This is a perspective view of a display device according to an embodiment.

[0040] Figure 2 It is along Figure 1 A schematic cross-sectional view of the display device according to an embodiment, taken by line Xa-Xa'.

[0041] Figure 3 yes Figure 1 and Figure 2 A schematic plan view of the display substrate in the display area of ​​the display device.

[0042] Figure 4 yes Figure 1 and Figure 2 A schematic plan view of the color conversion substrate in the display area of ​​the display device.

[0043] Figure 5 It is along Figure 3 and Figure 4 A cross-sectional view of the display device taken by line X1-X1'.

[0044] Figure 6 It is along Figure 3 and Figure 4 A cross-sectional view of the display device taken by line X2-X2'.

[0045] Figure 7 yes Figure 5 A magnified cross-sectional view of part Q.

[0046] Figure 8 and Figure 9 yes Figure 7 A cross-sectional view of an example of a modified structure.

[0047] Figure 10 It is along Figure 3 and Figure 4A cross-sectional view of the display device according to the embodiment, taken by line X3-X3'.

[0048] Figure 11 It is along Figure 3 and Figure 4 A cross-sectional view of the display device according to the embodiment, taken by line X4-X4'.

[0049] Figure 12 This is a schematic plan view illustrating the arrangement of barriers in a color conversion substrate according to an embodiment.

[0050] Figure 13 This is a schematic plan view illustrating the arrangement of light-shielding members in a color conversion substrate according to an embodiment.

[0051] Figure 14 This is a schematic plan view illustrating the arrangement of light-shielding patterns in a color conversion substrate according to an embodiment.

[0052] Figure 15 It is along Figure 3 and Figure 4 A cross-sectional view of the display device according to the embodiment, taken by line X5-X5'.

[0053] Figure 16 It is along Figure 3 and Figure 4 A cross-sectional view of the display device according to the embodiment, taken by line X6-X6'.

[0054] Figure 17 It is along Figure 3 and Figure 4 A cross-sectional view of the display device according to the embodiment, taken by line X7-X7'.

[0055] Figures 18 to 23 This is a cross-sectional view illustrating a portion of the manufacturing process of a display device according to an embodiment.

[0056] Figure 24 This is a schematic plan view illustrating the arrangement of light-shielding patterns in a color conversion substrate according to another embodiment.

[0057] Figure 25 This is a schematic plan view illustrating the arrangement of light-shielding patterns in a color conversion substrate according to another embodiment.

[0058] Figure 26 It is along Figure 25 The cross-sectional view taken from line X8-X8'.

[0059] Figure 27 and Figure 28 This is a cross-sectional view illustrating a light-shielding pattern according to other embodiments.

[0060] Figure 29 and Figure 30 This is a cross-sectional view of a display device according to other embodiments.

[0061] Figure 31 This is a schematic plan view of a display substrate in the display area of ​​a display device according to another embodiment.

[0062] Figure 32 This is a schematic plan view of a color conversion substrate in the display area of ​​a display device according to another embodiment.

[0063] Figure 33 This is a schematic plan view illustrating the arrangement of barriers and light-shielding members in a color conversion substrate according to another embodiment.

[0064] Figure 34 This is a schematic plan view illustrating the arrangement of light-shielding patterns in a color conversion substrate according to another embodiment.

[0065] Figure 35 and Figure 36 This is a schematic plan view illustrating the arrangement of light-shielding patterns in a color conversion substrate according to other embodiments. Detailed Implementation

[0066] The invention will now be described more fully below with reference to the accompanying drawings, in which preferred embodiments of the invention are illustrated. However, the invention may be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be exhaustive and comprehensive, and will fully convey the scope of the invention to those skilled in the art.

[0067] It should also be understood that when a layer is referred to as being "on" another layer or substrate, it may be directly on the other layer or substrate, or an intervening layer may be present. Throughout the specification, the same reference numerals indicate the same parts.

[0068] For ease of description, spatial relative terms such as “below,” “under,” “down,” “above,” and “up” are used herein to describe the relationship between one element or feature illustrated in the accompanying drawings and another element(s). It should be understood that spatial relative terms are intended to encompass different orientations of the device in use or operation, other than those depicted in the drawings. For example, if the device in the figures is flipped, an element described as “below” or “under” other elements or features will then be oriented “above” another element or feature. Therefore, the term “below” can encompass both above and below orientations. The device may be otherwise oriented (rotated 90 degrees or in other orientations), and the spatial relative descriptors used herein should be interpreted accordingly.

[0069] It will be understood that although the terms “first,” “second,” “third,” “fourth,” etc., may be used herein to describe various elements, these elements should not be limited by these terms. These terms are used only to distinguish one element from another. For example, the first element discussed below may be referred to as one of the second, third, and fourth elements without departing from the teachings of the invention.

[0070] The invention will be described with reference to perspective views, cross-sectional views, and / or plan views in which preferred embodiments of the invention are illustrated. Therefore, the outlines of the views may be modified according to manufacturing techniques and / or tolerances. That is, the embodiments of the invention are not intended to limit the scope of the invention, but rather to cover all changes and modifications that may arise due to variations in the manufacturing process. Therefore, the areas shown in the drawings are illustrated in a schematic manner, and the shapes of the areas are simply represented by the illustrations and are not intended to be limiting.

[0071] In the following description, embodiments will be illustrated with reference to the accompanying drawings.

[0072] Figure 1 This is a perspective view of a display device according to an embodiment of the present disclosure. Figure 2 It is along Figure 1 The cross-sectional view taken by line Xa-Xa'.

[0073] refer to Figure 1 and Figure 2 The display device 1 can be applied to various electronic devices, such as small and medium-sized electronic devices like tablet PCs, smartphones, in-vehicle navigation units, cameras, vehicle central information displays (CIDs), watch-type electronic devices, personal digital assistants (PDAs), portable multimedia players (PMPs), or game consoles, as well as medium and large-sized electronic devices like televisions (TVs), electronic billboards, monitors, PCs, or laptops, but this disclosure is not limited thereto. That is, the display device 1 can also be applied to various other electronic devices without departing from the concept of the invention.

[0074] In some embodiments, the display device 1 may have a rectangular shape in a plan view. The display device 1 may have two first sides extending in a first direction DR1 and two second sides extending in a second direction DR2. The angle between the first and second sides of the display device 1 may be a right angle, but this disclosure is not limited thereto. Alternatively, the angle between the first and second sides of the display device 1 may be curved. In some embodiments, the first side may be shorter than the second side, but this disclosure is not limited thereto. The planar shape of the display device 1 is not particularly limited, and the display device 1 may have a circular shape or another shape.

[0075] The display device 1 may include a display area DA for displaying images and a non-display area NDA for not displaying images. In some embodiments, the non-display area NDA may be placed around the display area DA and may surround the display area DA.

[0076] Unless otherwise specified, the terms “upper,” “above,” “above,” “top,” and “top surface” as used herein may refer to a third direction DR3 that intersects the first direction DR1 and the second direction DR2, and the terms “lower,” “below,” “bottom,” and “bottom surface” as used herein may refer to the opposite direction of the third direction DR3.

[0077] In one example, the display device 1 may include a display substrate 10, a color conversion substrate 30 facing the display substrate 10, a sealing portion 50 connecting the display substrate 10 and the color conversion substrate 30, and a filler 70 filled between the display substrate 10 and the color conversion substrate 30.

[0078] Display substrate 10 may include elements and circuitry for displaying images, such as, for example, pixel circuitry (e.g., switching elements), pixel-defining films defining emitting and non-emitting regions (described later) in the display area DA, and self-emissive elements. In one example, the self-emissive element may include an organic light-emitting diode, a quantum dot light-emitting diode, an inorganic material-based micro-light-emitting diode (microLED), and / or an inorganic material-based nano-light-emitting diode (nanoLED). Hereinafter, the self-emissive element will be described as an OLED.

[0079] The color conversion substrate 30 can be placed on the display substrate 10 and can face the display substrate 10. The color conversion substrate 30 may include a color conversion pattern for converting the color of incident light. In some embodiments, the color conversion pattern may include a color filter and / or a wavelength conversion pattern.

[0080] A sealing portion 50 may be placed in the non-display area NDA, between the display substrate 10 and the color conversion substrate 30. The sealing portion 50 may be arranged along the edge of each of the display substrate 10 and the color conversion substrate 30 in the non-display area NDA to surround the display area DA in a plan view. The display substrate 10 and the color conversion substrate 30 may be connected to each other via the sealing portion 50. In some embodiments, the sealing portion 50 may be formed of an organic material. In one example, the sealing portion 50 may be formed of epoxy resin, but this disclosure is not limited thereto.

[0081] The filler 70 can be placed in the space surrounded by the sealing portion 50 between the display substrate 10 and the color conversion substrate 30. The filler 70 can fill the gap between the display substrate 10 and the color conversion substrate 30. The filler 70 can be formed of a light-transmitting material. In some embodiments, the filler 70 can be formed of an organic material. In one example, the filler 70 can be formed of a silicone-based organic material or an epoxy-based organic material, but this disclosure is not limited thereto. In some embodiments, the filler 70 may not be provided.

[0082] Figure 3 yes Figure 1 and Figure 2 A plan view of the display substrate in the display area of ​​the display device. Figure 4 yes Figure 1 and Figure 2 A plan view of the color conversion substrate in the display area of ​​the display device.

[0083] refer to Figures 1 to 4 Multiple emitting regions LA1, LA2, LA3, LA4, LA5, and LA6, as well as a non-emitting region NLA, can be defined within the display area DA of the display substrate 10. The emitting regions LA1, LA2, LA3, LA4, LA5, and LA6 can be regions that emit light generated by the light-emitting elements to the outside of the display substrate 10, and the non-emitting region NLA can be a region that does not emit light to the outside of the display substrate 10.

[0084] In one example, the light emitted by the emitting regions LA1, LA2, LA3, LA4, LA5, and LA6 to the outside of the display substrate 10 can be light of a first color. In some embodiments, the first color light can be blue light and can have a peak wavelength of approximately 440 nm to approximately 480 nm.

[0085] The display area DA of the display substrate 10 may include emission areas LA1, LA2, and LA3 disposed in the first row RL1 and emission areas LA4, LA5, and LA6 disposed in the second row RL2. The first emission area LA1, the second emission area LA2, and the third emission area LA3 may be disposed in the first row RL1 along the first direction DR1. In one example, the display substrate 10 may include an area in which the first emission area LA1, the second emission area LA2, and the third emission area LA3 are disposed along the first direction DR1 in the order of first emission area LA1, second emission area LA2, and third emission area LA3, and an area in which the first emission area LA1, the second emission area LA2, and the third emission area LA3 are disposed along the first direction DR1 in the order of third emission area LA3, second emission area LA2, and first emission area LA1.

[0086] In the first row RL1 of the display substrate 10, a first emitting region LA1, a second emitting region LA2, and a third emitting region LA3 can be arranged along the first direction DR1 in the order of first emitting region LA1, second emitting region LA2, and third emitting region LA3, and then along the first direction DR1 in the order of third emitting region LA3, second emitting region LA2, and first emitting region LA1. Therefore, the third emitting region LA3 can be arranged adjacent to another third emitting region LA3, but this disclosure is not limited thereto. Although not specifically illustrated, the first emitting region LA1 can also be arranged adjacent to another first emitting region LA1, but this disclosure is not limited thereto. In some embodiments, even the second emitting region LA2 can be arranged adjacent to another second emitting region LA2.

[0087] The display substrate 10 may include areas in which identical emitting regions LA are arranged adjacent to each other. In the second row RL2 (which is adjacent to the first row RL1 in the second direction DR2), the fourth emitting region LA4, the fifth emitting region LA5, and the sixth emitting region LA6 may be arranged along the first direction DR1 in the order of fourth emitting region LA4, fifth emitting region LA5, and sixth emitting region LA6, and then along the first direction DR1 in the order of sixth emitting region LA6, fifth emitting region LA5, and fourth emitting region LA4. In areas in which identical emitting regions LA are arranged adjacent to each other, identical light-transmitting regions TA of the color conversion substrate 30, which will be described later, may also be arranged adjacent to each other. This will be described in detail later.

[0088] In some embodiments, the first width WL1 of the first transmitting region LA1 in the first direction DR1 may be greater than the second width WL2 of the second transmitting region LA2 in the first direction DR1 and the third width WL3 of the third transmitting region LA3 in the first direction DR1. Furthermore, the second width WL2 of the second transmitting region LA2 may be different from the third width WL3 of the third transmitting region LA3. In one example, the second width WL2 of the second transmitting region LA2 may be greater than the third width WL3 of the third transmitting region LA3. In some embodiments, the size of the first transmitting region LA1 may be greater than the size of the second transmitting region LA2 and the size of the third transmitting region LA3, and the size of the second transmitting region LA2 may be greater than the size of the third transmitting region LA3.

[0089] However, this disclosure is not limited thereto. The first width WL1 of the first transmitting region LA1, the second width WL2 of the second transmitting region LA2, and the third width WL3 of the third transmitting region LA3 can all be substantially the same. Furthermore, in some embodiments, the size of the second transmitting region LA2 can be smaller than the size of the third transmitting region LA3. Additionally, the sizes of the first transmitting region LA1, the second transmitting region LA2, and the third transmitting region LA3 can all be substantially the same. The width of the transmitting regions LA is illustrated as gradually decreasing from the first transmitting region LA1 to the third transmitting region LA3, but this disclosure is not limited thereto.

[0090] The fourth transmission area LA4, adjacent to the corresponding first transmission area LA1 on the second direction DR2, can be identical to the first transmission area LA1, except that it is located in the second row RL2, and the width, size, and arrangement of the fourth transmission area LA4 can be substantially the same as the width, size, and arrangement of the first transmission area LA1. Similarly, the fifth transmission area LA5, adjacent to the corresponding second transmission area LA2 on the second direction DR2, can have substantially the same structure as the second transmission area LA2, and the sixth transmission area LA6, adjacent to the corresponding third transmission area LA3 on the second direction DR2, can have substantially the same structure as the third transmission area LA3.

[0091] The color conversion substrate 30 may face the display substrate 10. Multiple light-transmitting areas TA1, TA2, TA3, TA4, TA5, and TA6, and a light-shielding area BA may be defined within the display area DA of the color conversion substrate 30. The light-transmitting areas TA1, TA2, TA3, TA4, TA5, and TA6 may be areas where light emitted from the display substrate 10 is provided to the outside of the display substrate 10 via the color conversion substrate 30. The light-shielding area BA may be an area where light emitted from the display substrate 10 does not transmit.

[0092] The color conversion substrate 30 may include light-transmitting areas TA1, TA2, and TA3 disposed in a first row RT1 and light-transmitting areas TA4, TA5, and TA6 disposed in a second row RT2. The first light-transmitting area TA1, the second light-transmitting area TA2, and the third light-transmitting area TA3 may be disposed in the first row RT1 along a first direction DR1. In one example, the color conversion substrate 30 may include an area in which the first light-transmitting area TA1, the second light-transmitting area TA2, and the third light-transmitting area TA3 are disposed along the first direction DR1 in the order of first light-transmitting area TA1, second light-transmitting area TA2, and third light-transmitting area TA3, and an area in which the first light-transmitting area TA1, the second light-transmitting area TA2, and the third light-transmitting area TA3 are disposed along the first direction DR1 in the order of third light-transmitting area TA3, second light-transmitting area TA2, and first light-transmitting area TA1.

[0093] The first light-transmitting area TA1 may correspond to or overlap with the first emitting area LA1. Similarly, the second light-transmitting area TA2 may correspond to or overlap with the second emitting area LA2, and the third light-transmitting area TA3 may correspond to or overlap with the third emitting area LA3. As described above, the first emitting area LA1, the second emitting area LA2, and the third emitting area LA3 may be arranged on the first direction DR1 in the order of first emitting area LA1, second emitting area LA2, and third emitting area LA3 or in the order of third emitting area LA3, second emitting area LA2, and first emitting area LA1. The first light-transmitting area TA1, the second light-transmitting area TA2, and the third light-transmitting area TA3, which correspond to or overlap with the first emitting area LA1, the second emitting area LA2, and the third emitting area LA3, may be arranged on the first direction DR1 in the order of first light-transmitting area TA1, second light-transmitting area TA2, and third light-transmitting area TA3 or in the order of third light-transmitting area TA3, second light-transmitting area TA2, and first light-transmitting area TA1. The third light-transmitting area TA3 is illustrated as being arranged adjacent to each other, but this disclosure is not limited thereto. The first light-transmitting area TA1 may also be arranged adjacent to other first light-transmitting areas TA1, but this disclosure is not limited thereto. Alternatively, the second light-transmitting area TA2 may be arranged adjacent to other second light-transmitting areas TA2.

[0094] Light of a first color provided by the display substrate 10 can be provided to the outside of the display device 1 through a first light-transmitting area TA1, a second light-transmitting area TA2, and a third light-transmitting area TA3. When the light emitted from the first light-transmitting area TA1 to the outside of the display device 1 is referred to as first emitted light, the light emitted from the second light-transmitting area TA2 to the outside of the display device 1 is referred to as second emitted light, and the light emitted from the third light-transmitting area TA3 to the outside of the display device 1 is referred to as third emitted light, the third emitted light can be light of the first color, the second emitted light can be light of a second color different from the first color, and the first emitted light can be light of a third color different from both the first and second colors. In some embodiments, the first color light can be blue light with a peak wavelength of approximately 440 nm to approximately 480 nm, the second color light can be green light with a peak wavelength of approximately 510 nm to approximately 550 nm, and the third color light can be red light with a peak wavelength of approximately 610 nm to approximately 650 nm.

[0095] In the second row RT2 (which is adjacent to the first row RT1 in the second direction DR2), a fourth light-transmitting area TA4, a fifth light-transmitting area TA5, and a sixth light-transmitting area TA6 can be set. These areas can be set in the first direction DR1 in either the order of fourth light-transmitting area TA4, fifth light-transmitting area TA5, and sixth light-transmitting area TA6, or in the order of sixth light-transmitting area TA6, fifth light-transmitting area TA5, and fourth light-transmitting area TA4. The fourth light-transmitting area TA4 can correspond to or overlap with the fourth emitting area LA4, the fifth light-transmitting area TA5 can correspond to or overlap with the fifth emitting area LA5, and the sixth light-transmitting area TA6 can correspond to or overlap with the sixth emitting area LA6.

[0096] In some embodiments, the widths WT of the first light-transmitting area TA1, the second light-transmitting area TA2, and the third light-transmitting area TA3 in the first direction DR1 can be similar to the widths of the first emitting area LA1, the second emitting area LA2, and the third emitting area LA3. In one example, the first width WT1 of the first light-transmitting area TA1 in the first direction DR1 can be greater than the second width WT2 of the second light-transmitting area TA2 in the first direction DR1 and the third width WT3 of the third light-transmitting area TA3 in the first direction DR1. Furthermore, the second width WT2 of the second light-transmitting area TA2 can be different from the third width WT3 of the third light-transmitting area TA3. In one example, the second width WT2 of the second light-transmitting area TA2 can be greater than the third width WT3 of the third light-transmitting area TA3.

[0097] Furthermore, in some embodiments, the size of the first light-transmitting area TA1 may be larger than the sizes of the second light-transmitting area TA2 and the third light-transmitting area TA3, and the size of the second light-transmitting area TA2 may be larger than the size of the third light-transmitting area TA3. The configuration of the fourth light-transmitting area TA4, the fifth light-transmitting area TA5, and the sixth light-transmitting area TA6 may be substantially the same as the configuration of the first light-transmitting area TA1, the second light-transmitting area TA2, and the third light-transmitting area TA3 that are adjacent to the fourth light-transmitting area TA4, the fifth light-transmitting area TA5, and the sixth light-transmitting area TA6 in the second direction DR2, and the color of the light emitted to the outside of the display device 1 through the fourth light-transmitting area TA4, the fifth light-transmitting area TA5, and the sixth light-transmitting area TA6 may be substantially the same as the color of the light emitted to the outside of the display device 1 through the first light-transmitting area TA1, the second light-transmitting area TA2, and the third light-transmitting area TA3, respectively.

[0098] The light-shielding area BA can be placed around the light-transmitting areas TA1, TA2, TA3, TA4, TA5, and TA6 in the display area DA of the color conversion substrate 30. In some embodiments, the light-shielding area BA may include a first light-shielding area BA1, a second light-shielding area BA2, a third light-shielding area BA3, a fourth light-shielding area BA4, a fifth light-shielding area BA5, a sixth light-shielding area BA6, a seventh light-shielding area BA7, an eighth light-shielding area BA8, and a ninth light-shielding area BA9.

[0099] The first light-shielding area BA1 can be placed between the first light-transmitting area TA1 and the second light-transmitting area TA2 along the first direction DR1. The second light-shielding area BA2 can be placed between the second light-transmitting area TA2 and the third light-transmitting area TA3 along the first direction DR1. The third light-shielding area BA3 can be placed between the third light-transmitting areas TA3 along the first direction DR1. The seventh light-shielding area BA7 can be placed between the first light-transmitting area TA1 and other first light-transmitting areas TA1 (not shown). That is, the first light-shielding area BA1 and the second light-shielding area BA2 can each be placed between two different adjacent light-transmitting areas, for example, between the first light-transmitting area TA1 and the second light-transmitting area TA2, or between the second light-transmitting area TA2 and the third light-transmitting area TA3. Each of the third light-shielding area BA3 and the seventh light-shielding area BA7 can be placed between two identical adjacent light-transmitting areas, for example, between two first light-transmitting areas TA1 or between two third light-transmitting areas TA3.

[0100] The fourth light-shielding area BA4 can be placed between the fourth light-transmitting area TA4 and the fifth light-transmitting area TA5 along the first direction DR1. The fifth light-shielding area BA5 can be placed between the fifth light-transmitting area TA5 and the sixth light-transmitting area TA6 along the first direction DR1, and the sixth light-shielding area BA6 can be placed between the sixth light-transmitting areas TA6 along the first direction DR1. The eighth light-shielding area BA8 can be placed between the fourth light-transmitting area TA4 and other fourth light-transmitting areas TA4 (not shown). That is, the fourth light-shielding area BA4 and the fifth light-shielding area BA5 can each be placed between two different adjacent light-transmitting areas, for example, between the fourth light-transmitting area TA4 and the fifth light-transmitting area TA5, or between the fifth light-transmitting area TA5 and the sixth light-transmitting area TA6. Each of the sixth light-shielding area BA6 and the eighth light-shielding area BA8 can be placed between two identical adjacent light-transmitting areas, for example, between two sixth light-transmitting areas TA6, or between two fourth light-transmitting areas TA4.

[0101] The ninth shading zone BA9 can be placed between the first row RT1 and the second row RT2, which are adjacent to each other on the second direction DR2.

[0102] The structure of display device 1 will be described in detail below.

[0103] Figure 5 It is along Figure 3 and Figure 4 The cross-sectional view taken by line X1-X1'. Figure 6 It is along Figure 3 and Figure 4 The cross-sectional view taken by line X2-X2'. Figure 7 yes Figure 5 A magnified cross-sectional view of part Q. Figure 8 and Figure 9 yes Figure 7 A cross-sectional view of a modified example of Q.

[0104] Figure 5 It is a cross-sectional view taken across the first emission region LA1, the second emission region LA2 and the third emission region LA3 of the display substrate 10 and across the first light-transmitting region TA1, the second light-transmitting region TA2 and the third light-transmitting region TA3 of the color conversion substrate 30. Figure 6 It is a cross-sectional view taken across the second emission region LA2, the third emission region LA3 and another third emission region LA3 of the display substrate 10, and across the second light-transmitting region TA2, the third light-transmitting region TA3 and another third light-transmitting region TA3 of the color conversion substrate 30.

[0105] refer to Figures 5 to 9 And further reference Figure 3 and Figure 4 As described above, the display device 1 may include a display substrate 10 and a color conversion substrate 30, and may further include a filler 70 disposed between the display substrate 10 and the color conversion substrate 30. The display substrate 10 will be described in detail below.

[0106] The display substrate 10 may include a first base portion 110 and a plurality of switching elements T1, T2 and T3 disposed on the first base portion 110.

[0107] The first substrate portion 110 may be formed of a material with light-transmitting properties. In some embodiments, the first substrate portion 110 may be a glass substrate or a plastic substrate. When the first substrate portion 110 is a plastic substrate, the first substrate portion 110 may be flexible. In some embodiments, the first substrate portion 110 may include a separate layer (e.g., a buffer layer or an insulating layer) placed on the glass substrate or the plastic substrate. In some embodiments, emitting regions LA1, LA2, LA3, LA4, LA5, and LA6 and a non-emitting region NLA may be defined on the first substrate portion 110.

[0108] Switching elements T1, T2, and T3 may be arranged on the first base portion 110. In some embodiments, the first switching element T1 may be placed in the first emission region LA1, the second switching element T2 may be placed in the second emission region LA2, and the third switching element T3 may be placed in the third emission region LA3. However, this disclosure is not limited thereto. In other embodiments, the first switching element T1, the second switching element T2, and / or the third switching element T3 may be placed in the non-emission region NLA.

[0109] In some embodiments, the first switching element T1, the second switching element T2, and the third switching element T3 may be thin-film transistors comprising polysilicon or oxide semiconductors.

[0110] Although not specifically illustrated, multiple signal lines (e.g., gate lines, data lines, and power lines) for transmitting signals to each switching element may be further arranged on the first base portion 110.

[0111] An insulating film 130 may be disposed on the first switching element T1, the second switching element T2, and the third switching element T3. In some embodiments, the insulating film 130 may be a planarization film. In some embodiments, the insulating film 130 may be formed as an organic film. In one example, the insulating film 130 may include an acrylic resin, an epoxy resin, an imide resin, or an ester resin. In some embodiments, the insulating film 130 may include a positively photosensitive material or a negatively photosensitive material.

[0112] A first anode electrode AE1, a second anode electrode AE2, and a third anode electrode AE3 can be disposed on an insulating film 130. The first anode electrode AE1 can be placed in a first emitting region LA1 and can extend at least partially into a non-emitting region NLA. The second anode electrode AE2 can be placed in a second emitting region LA2 and can extend at least partially into a non-emitting region NLA, and the third anode electrode AE3 can be placed in a third emitting region LA3 and can extend at least partially into a non-emitting region NLA. The first anode electrode AE1 can pass through the insulating film 130 to connect to a first switching element T1, the second anode electrode AE2 can pass through the insulating film 130 to connect to a second switching element T2, and the third anode electrode AE3 can pass through the insulating film 130 to connect to a third switching element T3.

[0113] In some embodiments, the first anode electrode AE1, the second anode electrode AE2, and the third anode electrode AE3 may have different widths or areas. In one example, the width of the first anode electrode AE1 may be greater than the width of the second anode electrode AE2, and the width of the second anode electrode AE2 may be less than the width of the first anode electrode AE1, but greater than the width of the third anode electrode AE3. The area of ​​the first anode electrode AE1 may be greater than the area of ​​the second anode electrode AE2, and the area of ​​the second anode electrode AE2 may be less than the area of ​​the first anode electrode AE1, but greater than the area of ​​the third anode electrode AE3. However, this disclosure is not limited thereto. Alternatively, the area of ​​the first anode electrode AE1 may be less than the area of ​​the second anode electrode AE2, and the area of ​​the third anode electrode AE3 may be greater than the areas of both the second anode electrode AE2 and the first anode electrode AE1. Alternatively, the first anode electrode AE1, the second anode electrode AE2, and the third anode electrode AE3 may have substantially the same width or area.

[0114] The first anode electrode AE1, the second anode electrode AE2, and the third anode electrode AE3 can be reflective electrodes. In this case, the first anode electrode AE1, the second anode electrode AE2, and the third anode electrode AE3 can be metal layers comprising metals such as Ag, Mg, Al, Pt, Pd, Au, Ni, Nd, Ir, or Cr. In some embodiments, the first anode electrode AE1, the second anode electrode AE2, and the third anode electrode AE3 can further comprise a metal oxide layer deposited on the metal layer. In one example, the first anode electrode AE1, the second anode electrode AE2, and the third anode electrode AE3 can have a bilayer structure such as ITO / Ag, Ag / ITO, ITO / Mg, or ITO / MgF, or a multilayer structure such as ITO / Ag / ITO.

[0115] A pixel defining film 150 can be disposed on a first anode electrode AE1, a second anode electrode AE2, and a third anode electrode AE3. The pixel defining film 150 may include an opening exposing the first anode electrode AE1, an opening exposing the second anode electrode AE2, and an opening exposing the third anode electrode AE3, and may define a first emission region LA1, a second emission region LA2, a third emission region LA3, and a non-emission region NLA. That is, the portion of the first anode electrode AE1 exposed but not covered by the pixel defining film 150 can be the first emission region LA1. Similarly, the portion of the second anode electrode AE2 exposed but not covered by the pixel defining film 150 can be the second emission region LA2, and the portion of the third anode electrode AE3 exposed but not covered by the pixel defining film 150 can be the third emission region LA3. The pixel defining film 150 can be placed within the non-emission region NLA.

[0116] In some embodiments, the pixel defining film 150 may include an organic insulating material such as acrylic resin, epoxy resin, phenolic resin, polyamide resin, polyimide resin, unsaturated polyester resin, polyphenylene resin, polyphenylene sulfide resin, or benzocyclobutene (BCB).

[0117] In some embodiments, a portion of the pixel defining film 150 may overlap with the light-shielding member 220, the barrier 370, and the light-shielding pattern 240. In one example, such as... Figure 5 As shown, the pixel defining film 150 can overlap with the first light-shielding member 221, the second light-shielding member 222, the seventh light-shielding member 227, and the barrier 370. Furthermore, the pixel defining film 150 can overlap with the light-shielding pattern 240 placed between the third light-transmitting areas TA3.

[0118] The emitter layer OL can be placed on the first anode electrode AE1, the second anode electrode AE2, and the third anode electrode AE3. In some embodiments, the emitter layer OL can have the shape of a continuous film formed across the emitter regions LA1, LA2, LA3, LA4, LA5, and LA6 and the non-emitter region NLA. The emitter layer OL will be described in detail later.

[0119] The cathode electrode CE can be disposed on the emitter layer OL. In some embodiments, the cathode electrode CE can be semi-transmissive or transmissive. When the cathode electrode CE is semi-transmissive, it can include Ag, Mg, Cu, Al, Pt, Pd, Au, Ni, Nd, Ir, Cr, Li, Ca, LiF / Ca, LiF / Al, Mo, Ti, or compounds or mixtures thereof (e.g., mixtures of Ag and Mg). Furthermore, when the cathode electrode CE has a thickness of tens to hundreds of angstroms, it can be semi-transmissive.

[0120] When the cathode electrode CE is transmissive, the cathode electrode CE may include a transparent conductive oxide (TCO). In one example, the cathode electrode CE may include tungsten oxide (WxOx), titanium oxide (TiO2), indium tin oxide (ITO), indium zinc oxide (IZO), zinc oxide (ZnO), indium tin zinc oxide (ITZO), or magnesium oxide (MgO).

[0121] The first anode electrode AE1, the emitting layer OL, and the cathode electrode CE can form a first light-emitting element ED1; the second anode electrode AE2, the emitting layer OL, and the cathode electrode CE can form a second light-emitting element ED2; and the third anode electrode AE3, the emitting layer OL, and the cathode electrode CE can form a third light-emitting element ED3. The first light-emitting element ED1, the second light-emitting element ED2, and the third light-emitting element ED3 can emit emitted light L, and the emitted light L can be provided to the color conversion substrate 30.

[0122] The display substrate 10 of the display device 1 may include a first type of light-emitting element and a second type of light-emitting element, wherein the first type of light-emitting element is adjacent to a light-emitting element ED of a different type, and the second type of light-emitting element is adjacent to a light-emitting element of its own type. Figure 5 and Figure 6 As shown, the second light-emitting element ED2 is adjacent to a light-emitting element ED of a different type (i.e., the first light-emitting element ED1 and the third light-emitting element ED3) in the first direction DR1, and therefore can be a light-emitting element of the first type.

[0123] Conversely, the third light-emitting element ED3 is adjacent to the second light-emitting element ED2 and another third light-emitting element ED3. That is, the third light-emitting element ED3 can be arranged adjacent to another light-emitting element of its type (i.e., another third light-emitting element ED3), and therefore can be a second type of light-emitting element. Although not specifically illustrated, the first light-emitting element ED1 is adjacent to another first light-emitting element ED1 and the second light-emitting element ED2 in the first direction DR1, and therefore can be a second type of light-emitting element.

[0124] The arrangement of the light-emitting elements ED can be associated with the arrangement of the emitting region LA and the light-transmitting region TA. As described above, since the third emitting regions LA3 are arranged adjacent to each other and the third light-transmitting regions TA3 are arranged adjacent to each other, the third light-emitting elements ED3 can also be arranged adjacent to each other. This arrangement of the light-emitting elements ED can be achieved by providing two identical light-transmitting regions (such as the third light-transmitting region TA3) adjacent to each other in the color conversion substrate 30 and providing two identical light-emitting elements adjacent to each other to correspond to the two identical light-transmitting regions. The barrier 370 and the light-shielding member 220 may not be provided between the third light-transmitting regions TA3 of the color conversion substrate 30, and the light-shielding pattern 240 may be arranged between the third light-transmitting regions TA3 of the color conversion substrate 30. This will be described in detail later.

[0125] The emitting layer (OL) of a light-emitting element (ED) can have multiple layers stacked together. For example... Figures 7 to 9 As shown, the emitting layer OL may include a first hole transport layer HTL1 placed on the first anode electrode AE1, a first light-emitting material layer EL11 placed on the first hole transport layer HTL1, and a first electron transport layer ETL1 placed on the first light-emitting material layer EL11. The emitting layer OL may include only one light-emitting layer; for example, it may include only the first light-emitting material layer EL11 as the light-emitting layer, and the first light-emitting material layer EL11 may be a blue light-emitting layer. However, the stacking structure of the emitting layer OL is not particularly limited to... Figure 7 The stacking structure shown can be changed, such as Figure 8 and Figure 9As shown in the image.

[0126] refer to Figure 8 The emitting layer OL may further include a first charge generation layer CGL11 placed on the first luminescent material layer EL11 and a second luminescent material layer EL12 placed on the first charge generation layer CGL11, and the first charge transport layer ETL1 may be placed on the second luminescent material layer EL12.

[0127] The first charge generation layer CGL11 can inject charge into each adjacent light-emitting layer. The first charge generation layer CGL11 can control the charge balance between the first light-emitting material layer EL11 and the second light-emitting material layer EL12. In some embodiments, the first charge generation layer CGL11 may include an n-type charge generation layer and a p-type charge generation layer. The p-type charge generation layer may be disposed on the n-type charge generation layer.

[0128] Similar to the first luminescent material layer EL11, the second luminescent material layer EL12 can emit blue light, but this disclosure is not limited thereto. The second luminescent material layer EL12 can emit blue light having a peak wavelength that is the same as or different from that of the first luminescent material layer EL11. Alternatively, the first luminescent material layer EL11 and the second luminescent material layer EL12 can emit light of different colors. That is, the first luminescent material layer EL11 can emit blue light, and the second luminescent material layer EL12 can emit green light.

[0129] Since the aforementioned emitting layer OL includes two light-emitting layers, therefore... Figure 7 Compared to previous examples, this can improve the emission efficiency and lifespan of the emission layer OL.

[0130] Figure 9 The illustration shows an example where the emitting layer OL comprises three light-emitting material layers EL11, EL12, and EL13, and two charge-generating layers CGL11 and CGL12. (Reference) Figure 9 The emitting layer OL may further include a first charge generating layer CGL11 placed on the first luminescent material layer EL11, a second luminescent material layer EL12 placed on the first charge generating layer CGL11, a second charge generating layer CGL12 placed on the second luminescent material layer EL12, and a third luminescent material layer EL13 placed on the second charge generating layer CGL12. A first charge transport layer ETL1 may be placed on the third luminescent material layer EL13.

[0131] Similar to the first and second luminescent material layers EL11 and EL12, the third luminescent material layer EL13 can emit blue light. In one example, the first, second, and third luminescent material layers EL11 and EL12 can all emit blue light. The peak wavelengths of the blue light beams emitted by the first, second, and third luminescent material layers EL11 and EL12 can all have the same peak wavelength, or some of the peak wavelengths of the blue light beams emitted by the first, second, and third luminescent material layers EL11 and EL12 can be different. Alternatively, the first, second, and third luminescent material layers EL11 and EL12 can emit different colors of light. In one example, each of the first, second, and third luminescent material layers EL11 and EL12 can emit blue or green light, or can emit red, green, and blue light to emit white light as a whole.

[0132] Refer again Figure 5 and Figure 6 A thin-film encapsulation layer 170 is disposed on the cathode electrode CE. The thin-film encapsulation layer 170 may be disposed together in the first emission region LA1, the second emission region LA2, the third emission region LA3, and the non-emission region NLA. In some embodiments, the thin-film encapsulation layer 170 may directly cover the cathode electrode CE. In some embodiments, a capping layer (not shown) covering the cathode electrode CE may be further disposed between the thin-film encapsulation layer 170 and the cathode electrode CE, in which case the thin-film encapsulation layer 170 may directly cover the capping layer.

[0133] In some embodiments, the thin-film encapsulation layer 170 may include a first encapsulation inorganic film 171, an encapsulation organic film 173, and a second encapsulation inorganic film 175 sequentially deposited on the cathode electrode CE.

[0134] In some embodiments, the first encapsulation inorganic film 171 and the second encapsulation inorganic film 175 may be formed of silicon nitride, aluminum nitride, zirconium nitride, titanium nitride, hafnium nitride, tantalum nitride, silicon oxide, aluminum oxide, titanium oxide, tin oxide, cerium oxide, silicon oxynitride (SiON), or lithium fluoride.

[0135] In some embodiments, the encapsulating organic film 173 may be formed from acrylic resin, methacrylic resin, polyisoprene, vinyl resin, epoxy resin, polyurethane resin, cellulose resin or dinaphthalene-based resin.

[0136] The structure of the thin-film encapsulation layer 170 is not particularly limited and can be changed.

[0137] A panel light-shielding member 190 can be placed on the thin-film encapsulation layer 170. The panel light-shielding member 190 can be placed on the thin-film encapsulation layer 170 in the non-emissive region (NLA). The panel light-shielding member 190 can prevent light from penetrating between adjacent emitting regions to cause color mixing, and as a result, can further improve color reproduction.

[0138] In some embodiments, the panel light-shielding member 190 may be placed in the non-emitting area NLA and may be arranged in a plan view around the emitting areas LA1, LA2, LA3, LA4, LA5 and LA6.

[0139] The panel light-shielding member 190 may include an organic light-shielding material, and can be formed by coating the organic light-shielding material and subjecting the organic light-shielding material to an exposure process.

[0140] The color conversion substrate 30 will be described below.

[0141] Figure 10 It is along Figure 3 and Figure 4 The cross-sectional view taken by line X3-X3'. Figure 11 It is along Figure 3 and Figure 4 The cross-sectional view taken from line X4-X4'.

[0142] refer to Figures 10 to 17 And further reference Figures 3 to 6 The color conversion substrate 30 may include a second substrate portion 310, a plurality of color filters 231, 232 and 233, a plurality of light-shielding members 221, 222 and 227, a light-shielding pattern 240, a barrier 370, a plurality of wavelength conversion patterns 330 and 340 and a light-transmitting pattern 350.

[0143] The second substrate portion 310 may be formed of a light-transmitting material. In some embodiments, the second substrate portion 310 may include a glass substrate or a plastic substrate. In some embodiments, the second substrate portion 310 may further include a separate layer (e.g., an insulating layer such as an inorganic film) disposed on the glass substrate or plastic substrate. As described above, Figure 4 The light-transmitting areas TA1, TA2, TA3, TA4, TA5 and TA6 and the light-blocking area BA can be defined on the second base portion 310, and their detailed description will be omitted.

[0144] Color filters 231, 232 and 233, light-shielding members 221, 222 and 227, and light-shielding pattern 240 can be placed on the surface of the second base portion 310 facing the display substrate 10.

[0145] Color filters 231, 232 and 233 may include a first color filter 231, a second color filter 232 and a third color filter 233.

[0146] The first color filter 231 can be placed on the surface of the second base portion 310 in the first light-transmitting area TA1 and the fourth light-transmitting area TA4. In some embodiments, the first color filter 231 placed in the first light-transmitting area TA1 and the first color filter 231 placed in the fourth light-transmitting area TA4 can be connected to each other. That is, the first color filter 231 placed in the first row RT1 can be connected to the first color filter 231 placed in the second row RT2. The first color filter 231 can extend in the second direction DR2, and the ninth light-shielding member 229, which will be described later, can be placed in the overlapping area of ​​the first color filter 231 and the ninth light-shielding area BA9. The ninth light-shielding member 229 can divide the first light-transmitting area TA1 and the fourth light-transmitting area TA4 in the second direction DR2.

[0147] However, this disclosure is not limited thereto. Alternatively, the first color filter 231 placed in the first light-transmitting area TA1 may be spaced apart from the first color filter 231 placed in the fourth light-transmitting area TA4. That is, the first color filter 231 may be configured as a stripe extending in the second direction DR2 or as islands spaced apart from each other in the second direction DR2.

[0148] The first color filter 231 can selectively transmit a third color of light (e.g., red light) and can block or absorb a first color of light (e.g., blue light) and a second color of light (e.g., green light). In some embodiments, the first color filter 231 may be a red color filter and may include a red colorant such as a red dye or red pigment. As used herein, the term "colorant" may be understood to include both dyes and pigments.

[0149] Similar to the first color filter 231, the second color filter 232 and the third color filter 233 can also be disposed on the surface of the second base portion 310. The second color filter 232 can be placed in the second light-transmitting area TA2 and the fifth light-transmitting area TA5, and the third color filter 233 can be placed in the third light-transmitting area TA3 and the sixth light-transmitting area TA6. In some embodiments, when the second color filter 232 and the third color filter 233 extend in the second direction DR2, the second color filter 232 and the third color filter 233 placed in the first row RT1 can be connected to the second color filter 232 and the third color filter 233 placed in the second row RT2. The ninth light-shielding member 229, which will be described later, can be placed in the overlapping area of ​​the second color filter 232 and the ninth light-shielding area BA9, and in the overlapping area of ​​the third color filter 233 and the ninth light-shielding area BA9. However, this disclosure is not limited thereto. Alternatively, each of the second color filter 232 and the third color filter 233 may also be spaced apart between the first row RT1 and the second row RT2. That is, each of the second color filter 232 and the third color filter 233 may also be configured as a stripe extending in the second direction DR2 or an island spaced apart from each other in the second direction DR2.

[0150] The second color filter 232 can selectively transmit light of a second color (e.g., green light) and can block or absorb light of a first color (e.g., blue light) and a third color (e.g., red light). In some embodiments, the second color filter 232 may be a green color filter and may include a green colorant such as a green dye or green pigment.

[0151] The third color filter 233 can selectively transmit light of the first color (e.g., blue light) and can block or absorb light of the second color (e.g., green light) and the third color (e.g., red light). In some embodiments, the third color filter 233 may be a blue color filter and may include a blue colorant such as a blue dye or blue pigment.

[0152] The light-shielding member 220 can be disposed on the surface of the second base portion 310 facing the display substrate 10. The light-shielding member 220 can be placed in some of the light-shielding areas BA to block light transmission. In some embodiments, the light-shielding member 220 can be arranged in a basic grid shape in a plan view, such as... Figure 13 As shown in the image.

[0153] In some embodiments, the light-shielding member 220 may include an organic light-shielding material and can be formed by coating the organic light-shielding material and subjecting it to an exposure process. External light incident on the display device 1 may cause color reproduction distortion of the color conversion substrate 30. The light-shielding member 220, placed on the second substrate portion 310, is able to absorb at least some of the external light. Therefore, the light-shielding member 220 can reduce color distortion caused by reflection of external light. In some embodiments, the light-shielding member 220 can prevent light from penetrating between adjacent light-transmitting areas to cause color mixing, and as a result, color reproduction can be further improved.

[0154] In some embodiments, the light-shielding member 220 may include a first light-shielding member 221 placed in a first light-shielding area BA1, a second light-shielding member 222 placed in a second light-shielding area BA2, a fourth light-shielding member 224 placed in a fourth light-shielding area BA4, a fifth light-shielding member 225 placed in a fifth light-shielding area BA5, a sixth light-shielding member 226 placed in a sixth light-shielding area BA6, a seventh light-shielding member 227 placed in a seventh light-shielding area BA7, an eighth light-shielding member 228 placed in an eighth light-shielding area BA8, and a ninth light-shielding member 229 placed in a ninth light-shielding area BA9. In some embodiments, the first light-shielding member 221, the second light-shielding member 222, and the seventh light-shielding member 227 may be connected to the ninth light-shielding member 229, and the fourth light-shielding member 224, the fifth light-shielding member 225, and the eighth light-shielding member 228 may also be connected to the ninth light-shielding member 229. The light-shielding member 220 may be formed to have a shape substantially the same as the light-shielding area BA. That is, the first light-shielding member 221, the second light-shielding member 222, the fourth light-shielding member 224, the fifth light-shielding member 225, the seventh light-shielding member 227, and the eighth light-shielding member 228 can extend in the second direction DR2, and the ninth light-shielding member 229 can extend in the first direction DR1. The light-shielding members 220 can be substantially integrally formed into a single pattern, and the reference numerals given to the light-shielding members 220 can be understood as distinguishing the light-shielding members 220 from each other with respect to their positions.

[0155] In some embodiments, the first side of the first color filter 231 may be placed in the seventh light-shielding area BA7 and on the seventh light-shielding member 227. The second side of the first color filter 231 may be arranged in the first light-shielding area BA1 and on the first light-shielding member 221. Similarly, the first side of the second color filter 232 may be placed in the first light-shielding area BA1 and on the first light-shielding member 221, and the second side of the second color filter 232 may be placed in the second light-shielding area BA2 and on the second light-shielding member 222.

[0156] In some embodiments, the first color filter 231 and the second color filter 232 may be formed as stripes extending in the second direction DR2, and may extend across the ninth light-shielding region BA9 between the first row RT1 and the second row RT2, respectively. The first color filter 231 and the second color filter 232 may be placed in the ninth light-shielding region BA9, on the ninth light-shielding member 229, and may be arranged to cover the ninth light-shielding member 229. However, this disclosure is not limited thereto. Alternatively, the first color filter 231 and / or the second color filter 232 may be arranged to be spaced apart from the ninth light-shielding region BA9 between the first row RT1 and the second row RT2 along the second direction DR2. That is, the first color filter 231 and the second color filter 232 may be formed as islands.

[0157] Meanwhile, the light-shielding member 220 may not be arranged in the third light-shielding area BA3 and the sixth light-shielding area BA6. The display device 1 may include a light-shielding pattern 240 placed in at least a portion of the color conversion substrate 30. Unlike the light-shielding member 220, the light-shielding pattern 240 may be arranged between adjacent identical light-transmitting areas, for example, between the third light-transmitting areas TA3. Therefore, the first side of the third color filter 233 arranged in the third light-transmitting area TA3 may be placed in the second light-shielding area BA2, on the second light-shielding member 222, while the second side of the third color filter 233 may contact the light-shielding pattern 240 in the third light-shielding area BA3. In some embodiments, when the light-shielding pattern 240 extends in the second direction DR2, the light-shielding pattern 240 may be arranged in the third light-shielding area BA3 and the sixth light-shielding area BA6 to form stripes.

[0158] The light-shielding pattern 240 can perform essentially the same function as the light-shielding member 220. That is, the light-shielding pattern 240 can be placed in the third light-shielding area BA3 to block the transmission of light. The light-shielding pattern 240 can prevent light beams emitted from adjacent identical light-transmitting areas (e.g., from the third light-transmitting area TA3) from mixing together.

[0159] As will be described later, the light-transmitting patterns 350 arranged in adjacent third light-transmitting areas TA3 can be connected to each other across the third light-shielding area BA3. Light emitted from the third light-emitting element ED3 of the display substrate 10 can be emitted from the third light-transmitting area TA3 through the light-transmitting patterns 350 and the third color filter 233. Here, the light-shielding patterns 240 placed between adjacent third light-transmitting areas TA3 can prevent light from penetrating between the light-transmitting areas through the light-transmitting patterns 350 to cause color mixing. As a result, the light-shielding patterns 240 can improve color reproduction. In addition, the light-shielding patterns 240 can absorb at least some of the external light and can reduce color distortion. The light-shielding patterns 240 can be formed by applying a laser to the third light-shielding area BA3 after the formation of the third color filter 233 during the manufacture of the color conversion substrate 30. That is, the light-shielding patterns 240 can be formed by carbonizing a portion of the third color filter 233 and a portion of the light-transmitting pattern 350, but this disclosure is not limited thereto. Alternatively, the light-shielding pattern 240 may include an organic light-shielding material, and can be formed by coating the organic light-shielding material and subjecting it to an exposure process. This will be described in detail later.

[0160] A first cover layer 391 covering the light-shielding member 220, the first color filter 231, the second color filter 232, and the third color filter 233 can be placed on the surface of the second base portion 310. In some embodiments, the first cover layer 391 can be in direct contact with the first color filter 231, the second color filter 232, and the third color filter 233.

[0161] The first cover layer 391 can contact the light-shielding member 220. In some embodiments, in the first light-shielding area BA1, the first light-shielding member 221 can directly contact the first cover layer 391. Furthermore, in the second light-shielding area BA2, the second light-shielding member 222 can contact the first cover layer 391, and in the seventh light-shielding area BA7, the seventh light-shielding member 227 can contact the first cover layer 391. Additionally, in the ninth light-shielding area BA9, the ninth light-shielding member 229 can directly contact the first cover layer 391. Meanwhile, the light-shielding pattern 240, which will be described later, can be arranged in the third light-shielding area BA3 and can be formed by laser carbonization of a portion of the first cover layer 391. That is, the first cover layer 391 can be arranged on the entire surface of the second substrate portion 310, but can be partially divided by the third light-shielding area BA3.

[0162] The first capping layer 391 prevents the light-shielding member 220, the first color filter 231, the second color filter 232, and the third color filter 233 from being damaged or contaminated by external impurities (such as moisture or air). Furthermore, the first capping layer 391 prevents the colorant in the first color filter 231, the second color filter 232, and the third color filter 233 from diffusing into other elements (such as, for example, the first wavelength conversion pattern 330 and the second wavelength conversion pattern 340). In some embodiments, the first capping layer 391 may be formed of an inorganic material. For example, the first capping layer 391 may include silicon nitride, aluminum nitride, zirconium nitride, titanium nitride, hafnium nitride, tantalum nitride, silicon oxide, aluminum oxide, titanium oxide, tin oxide, cerium oxide, or silicon oxynitride.

[0163] The barrier 370 can be placed in some of the light-shielding areas BA and can overlap with the non-emitting areas NLA. The barrier 370 can be arranged around the first light-transmitting area TA1, the second light-transmitting area TA2, the fourth light-transmitting area TA4, and the fifth light-transmitting area TA5. In some embodiments, the barrier 370 can be formed in a grid shape in a plan view.

[0164] The first wavelength conversion pattern 330, the second wavelength conversion pattern 340, and the light-transmitting pattern 350, described later, can be formed using an ink composition via inkjet printing. The barrier 370 formed in the color conversion substrate 30 can guide the ink composition used to form the first wavelength conversion pattern 330, the second wavelength conversion pattern 340, and the light-transmitting pattern 350, so that the ink composition can be stably placed at any desired location.

[0165] In some embodiments, the barrier 370 may be formed of an organic material (particularly a photosensitive organic material). The photosensitive organic material may be a negative photosensitive material that cures upon exposure to light, but this disclosure is not limited thereto. Furthermore, in some embodiments, the barrier 370 may further include a light-shielding member. That is, the barrier 370 may be placed within the light-shielding area BA to block light transmission. Specifically, the barrier 370 may be placed between the first wavelength conversion pattern 330 and the second wavelength conversion pattern 340, and between the second wavelength conversion pattern 340 and the light-transmitting pattern 350. The barrier 370 can prevent light beams emitted from adjacent different light-transmitting areas from mixing together.

[0166] The first wavelength conversion pattern 330, the second wavelength conversion pattern 340, and the light-transmitting pattern 350 may be disposed on the first capping layer 391. In some embodiments, the first wavelength conversion pattern 330, the second wavelength conversion pattern 340, and the light-transmitting pattern 350 may be formed by inkjet printing, but this disclosure is not limited thereto. In other embodiments, the light-transmitting pattern 350, the first wavelength conversion pattern 330, and the second wavelength conversion pattern 340 may be formed by applying a photosensitive material and exposing and developing the photosensitive material. Hereinafter, the light-transmitting pattern 350, the first wavelength conversion pattern 330, and the second wavelength conversion pattern 340 will be described as being formed by inkjet printing.

[0167] The first wavelength conversion pattern 330 can be placed in the first light-transmitting area TA1 and the fourth light-transmitting area TA4 on the first capping layer 391. In some embodiments, the first wavelength conversion pattern 330 can be formed as a stripe extending in the second direction DR2 and can extend across the ninth light-shielding area BA9 between the first row RT1 and the second row RT2, but this disclosure is not limited thereto. In other embodiments, the first wavelength conversion pattern 330 can be formed as islands spaced apart between the first light-transmitting area TA1 and the fourth light-transmitting area TA4.

[0168] The first wavelength conversion pattern 330 can convert or shift the peak wavelength of the incident light to a specific peak wavelength. In some embodiments, the first wavelength conversion pattern 330 can convert the emitted light L provided by the first light-emitting element ED1 into red light with a peak wavelength of about 610 nm to about 650 nm, and can emit red light.

[0169] In some embodiments, the first wavelength conversion pattern 330 may include a first substrate resin 331 and a first wavelength conversion material 335 dispersed in the first substrate resin 331, and may further include a first scatterer 333 dispersed in the first substrate resin 331. The first substrate resin 331 may be formed of a material having high light transmittance. In some embodiments, the first substrate resin 331 may be formed of an organic material. In some embodiments, the first substrate resin 331 may include organic materials such as epoxy resin, acrylic resin, cardo resin, or imide resin, but this disclosure is not limited thereto.

[0170] The first wavelength conversion material 335 can convert or shift the peak wavelength of the incident light to a specific peak wavelength. In some embodiments, the first wavelength conversion material 335 can convert the emitted light L provided by the first light-emitting element ED1 into red light with a single peak wavelength of about 610 nm to about 650 nm, and can emit red light.

[0171] Examples of the first wavelength conversion material 335 include quantum dots, quantum rods, and phosphors. In one example, a quantum dot can be a particulate material that emits light of a specific color in response to an electron transitioning from the conduction band to the valence band.

[0172] Quantum dots can be semiconductor nanocrystal materials. Because quantum dots have a predetermined band gap depending on their composition and size, they absorb light and emit light of a predetermined wavelength. Semiconductor nanocrystal materials include group IV elements, group II-VI compounds, group III-V compounds, group IV-VI compounds, and combinations thereof.

[0173] Group II-VI compounds may be selected from the group consisting of: binary compounds selected from CdSe, CdTe, ZnS, ZnSe, ZnTe, ZnO, HgS, HgSe, HgTe, MgSe, MgS, and mixtures thereof; and compounds selected from InZnP, AgInS, CuInS, CdSeS, CdSeTe, CdSTe, ZnSeS, ZnSeTe, ZnSTe, HgSeS, HgSeTe, HgSTe, CdZnS, CdZnSe Ternary compounds selected from CdZnTe, CdHgS, CdHgSe, CdHgTe, HgZnS, HgZnSe, HgZnTe, MgZnSe, MgZnS and mixtures thereof; or quaternary compounds selected from HgZnTeS, CdZnSeS, CdZnSeTe, CdZnSTe, CdHgSeS, CdHgSeTe, CdHgSTe, HgZnSeS, HgZnSeTe, HgZnSTe and mixtures thereof.

[0174] III-V group compounds may be selected from the group consisting of: binary compounds selected from GaN, GaP, GaAs, GaSb, AlN, AlP, AlAs, AlSb, InN, InP, InAs, InSb and mixtures thereof; ternary compounds selected from GaNP, GaNAs, GaNSb, GaPAs, GaPSb, AlNP, AlNAs, AlNSb, AlPAs, AlPSb, InGaP, InNP, InAlP, InNAs, InNSb, InPAs, InPSb, GaAlNP and mixtures thereof; and quaternary compounds selected from GaAlNAs, GaAlNSb, GaAlPAs, GaAlPSb, GaInNP, GaInNAs, GaInNSb, GaInPAs, GaInPSb, InAlNP, InAlNAs, InAlNSb, InAlPAs, InAlPSb and mixtures thereof.

[0175] Group IV-VI compounds may be selected from the group consisting of: binary compounds selected from SnS, SnSe, SnTe, PbS, PbSe, PbTe, and mixtures thereof; ternary compounds selected from SnSeS, SnSeTe, SnSTe, PbSeS, PbSeTe, PbSTe, SnPbS, SnPbSe, SnPbTe, and mixtures thereof; and quaternary compounds selected from SnPbSSe, SnPbSeTe, SnPbSTe, and mixtures thereof. Group IV elements may be selected from the group consisting of Si, Ge, and mixtures thereof. Group IV compounds may be binary compounds selected from SiC, SiGe, and mixtures thereof.

[0176] These binary, ternary, or quaternary compounds can exist in particles at uniform or partially different concentrations. Quantum dots can have a core-shell structure, with one quantum dot surrounding another. The interface between the core and shell of a quantum dot can have a concentration gradient in which the concentration of the element in the shell of the quantum dot gradually decreases towards the center of the shell.

[0177] In some embodiments, the quantum dot may have a core-shell structure consisting of a core comprising the aforementioned semiconductor nanocrystal material and a shell surrounding the core. The shell of the quantum dot may serve as a protective layer for maintaining the semiconductor properties of the quantum dot by preventing chemical denaturation of the quantum dot's core, and / or as a charging layer for imparting electrophoretic properties to the quantum dot. The shell of the quantum dot may have a single-layer or multi-layer structure. The interface between the core and shell of the quantum dot may have a concentration gradient in which the concentration of the element at the shell of the quantum dot gradually decreases towards the center of the shell. The shell of the quantum dot may comprise a metal or non-metal oxide, a semiconductor compound, or a combination thereof.

[0178] In one example, the metal or non-metal oxide can be a binary compound such as SiO2, Al2O3, TiO2, ZnO, MnO, Mn2O3, Mn3O4, CuO, FeO, Fe2O3, Fe3O4, CoO, Co3O4 or NiO, or a ternary compound such as MgAl2O4, CoFe2O4, NiFe2O4 or CoMn2O4, but this disclosure is not limited thereto.

[0179] In one example, the semiconductor compound may be CdS, CdSe, CdTe, ZnS, ZnSe, ZnTe, ZnSeS, ZnTeS, GaAs, GaP, GaSb, HgS, HgSe, HgTe, InAs, InP, InGaP, InSb, AlAs, AlP, or AlSb, but this disclosure is not limited thereto.

[0180] The light emitted by the first wavelength conversion material 335 can have a full width at half maximum (FMHM) of approximately 45 nm or less, approximately 40 nm or less, or approximately 30 nm or less, and therefore, the purity of the colors displayed by the display device 1 and the color reproducibility of the display device 1 can be further improved. Furthermore, the first wavelength conversion material 335 can emit light in all directions, regardless of the incident direction of the light. This can improve the lateral visibility of the third color displayed in the first light-transmitting area TA1.

[0181] Some of the emitted light L provided by the first light-emitting element ED1 may not be converted into red light by the first wavelength conversion material 335, but may instead be emitted through the first wavelength conversion pattern 330. Components of the emitted light L that are incident on the first color filter 231 and not converted by the first wavelength conversion pattern 330 can be blocked by the first color filter 231. Conversely, red light obtained from the emitted light L through the first wavelength conversion pattern 330 can be emitted to the outside through the first color filter 231. That is, the light emitted from the first light-transmitting region TA1 can be red light.

[0182] The first scatterer 333 may have a refractive index different from that of the first substrate resin 331 and may form an optical interface with the first substrate resin 331. In one example, the first scatterer 333 may comprise light-scattering particles. The material of the first scatterer 333 is not particularly limited, as long as it can scatter at least some light, and the first scatterer 333 may comprise, for example, particles of metal oxides or particles of organic materials. The metal oxide may be titanium oxide (TiO2), zirconium oxide (ZrO2), aluminum oxide (Al2O3), indium oxide (In2O3), zinc oxide (ZnO), or tin oxide (SnO2), and the organic material may be acrylic resin or polyurethane resin. The first scatterer 333 may scatter light in random directions, regardless of the incident direction of the light, without substantially changing the wavelength of the light passing through the first wavelength conversion pattern 330.

[0183] The second wavelength conversion pattern 340 can be placed in the second light-transmitting area TA2 and the fifth light-transmitting area TA5 on the first capping layer 391. In some embodiments, the second wavelength conversion pattern 340 can be formed as a stripe extending in the second direction DR2 and can extend across the ninth light-shielding area BA9 between the first row RT1 and the second row RT2, but this disclosure is not limited thereto. In other embodiments, the second wavelength conversion pattern 340 can be formed as islands spaced apart between the second light-transmitting area TA2 and the fifth light-transmitting area TA5.

[0184] The second wavelength conversion pattern 340 can convert or shift the peak wavelength of the incident light to a specific peak wavelength. In some embodiments, the second wavelength conversion pattern 340 can convert the emitted light L provided by the second light-emitting element ED2 into green light with a peak wavelength of about 510 nm to about 550 nm, and can emit green light.

[0185] In some embodiments, the second wavelength conversion pattern 340 may include a second substrate resin 341 and a second wavelength conversion material 345 dispersed in the second substrate resin 341, and may further include a second scatterer 343 dispersed in the second substrate resin 341.

[0186] The second base resin 341 may be formed of a material having high light transmittance. In some embodiments, the second base resin 341 may be formed of an organic material. In some embodiments, the second base resin 341 may be formed of the same material as the first base resin 331, or may include at least one of the aforementioned materials used for the first base resin 331, but this disclosure is not limited thereto.

[0187] The second wavelength conversion material 345 can convert or shift the peak wavelength of the incident light to a specific peak wavelength. In some embodiments, the second wavelength conversion material 345 can convert blue light with a peak wavelength of 440 nm to 480 nm into green light with a peak wavelength of 510 nm to 550 nm.

[0188] Examples of the second wavelength conversion material 345 include quantum dots, quantum rods, and phosphors. The second wavelength conversion material 345 is substantially the same as the first wavelength conversion material 335, and therefore, its detailed description will be omitted.

[0189] In some embodiments, both the first wavelength conversion material 335 and the second wavelength conversion material 345 can be formed from quantum dots. In this case, the particle size of the first wavelength conversion material 335 can be larger than the particle size of the second wavelength conversion material 345.

[0190] The second scatterer 343 may have a refractive index different from that of the second substrate resin 341, and may form an optical interface with the second substrate resin 341. In one example, the second scatterer 343 may include light-scattering particles. The second scatterer 343 is substantially the same as the first scatterer 333, and therefore, its detailed description will be omitted.

[0191] The emitted light L emitted by the second light-emitting element ED2 can be provided to the second wavelength conversion pattern 340, and the second wavelength conversion material 345 can convert the emitted light L provided by the second light-emitting element ED2 into green light with a peak wavelength of about 510 nm to about 550 nm and emit green light.

[0192] The light-transmitting pattern 350 can be placed in the third light-transmitting area TA3 and the sixth light-transmitting area TA6 on the first cover layer 391. In some embodiments, the light-transmitting pattern 350 can be formed as stripes extending in the second direction DR2 and can extend across the ninth light-shielding area BA9 between the first row RT1 and the second row RT2, but this disclosure is not limited thereto. In other embodiments, the light-transmitting pattern 350 can be formed as islands spaced apart between the third light-transmitting area TA3 and the sixth light-transmitting area TA6.

[0193] Furthermore, the light-transmitting pattern 350 can be placed in an adjacent third light-transmitting area TA3. In one example, the light-transmitting pattern 350 placed in one third light-transmitting area TA3 can be connected to the light-transmitting pattern 350 placed in another third light-transmitting area TA3, thereby forming a single light-transmitting pattern 350 together. The light-transmitting pattern 350 can also be placed in a third light-shielding area BA3, and can have a width larger than the width of the first wavelength conversion pattern 330 and the second wavelength conversion pattern 340. As described above, the light-shielding pattern 240 can be arranged in the third light-shielding area BA3 between adjacent third light-transmitting areas TA3. Therefore, even if the light-transmitting pattern 350 is arranged in an adjacent third light-transmitting area TA3 and spans adjacent third light-transmitting areas TA3, light incident on the light-transmitting pattern 350 from a third light-emitting element ED3 can be emitted to the third light-transmitting area TA3 corresponding to that third light-emitting element ED3, and not to the third light-transmitting area TA3 corresponding to the adjacent third light-emitting element ED3. That is, the light-blocking pattern 240 can prevent the light beam incident on the light-transmitting pattern 350 from being emitted to other light-transmitting areas, such as other third light-transmitting areas TA3 that do not correspond to the third light-emitting element ED3.

[0194] In one example, the thickness TH240 of the light-shielding pattern 240 can be greater than the thickness TH220 of the light-shielding member 220, but less than the thickness of the barrier 370. As described later, the light-shielding pattern 240 can be formed by applying a laser to the third light-shielding region BA3 during the manufacture of the color conversion substrate 30. The light-shielding pattern 240 can be formed by carbonizing the portion of the light-transmitting pattern 350, the third color filter 233, and the first capping layer 391 located in the third light-shielding region BA3 with a laser. Here, the light-shielding pattern 240 can have sufficient thickness to prevent light incident on the light-transmitting pattern 350 from the third light-emitting element ED3 from being emitted into another third light-transmitting region TA3 that does not correspond to the third light-emitting element ED3. The thickness TH240 of the light-shielding pattern 240 can be less than the thickness of the barrier 370, but greater than the thickness TH220 of the light-shielding member 220. In one example, the thickness TH240 of the light-shielding pattern 240 can be less than half the thickness of the barrier 370, but this disclosure is not limited thereto.

[0195] The light-transmitting pattern 350 allows incident light to pass through. The emitted light L provided by the third light-emitting element ED3 can pass through the light-transmitting pattern 350 and the third color filter 233 and be emitted to the outside of the display device 1. That is, the light emitted from the third light-transmitting area TA3 can be blue light.

[0196] In some embodiments, the light-transmitting pattern 350 may include a third base resin 351, and may further include a third scatterer 353 dispersed in the third base resin 351.

[0197] The third base resin 351 may be formed of a material having high light transmittance. In some embodiments, the third base resin 351 may be formed of an organic material. In some embodiments, the third base resin 351 may be formed of the same material as the first base resin 331, or may include at least one of the aforementioned materials used for the first base resin 331, but this disclosure is not limited thereto.

[0198] The third scatterer 353 may have a refractive index different from that of the third substrate resin 351 and may form an optical interface with the third substrate resin 351. In one example, the third scatterer 353 may include light-scattering particles. The third scatterer 353 is substantially the same as the first scatterer 333, and therefore, its detailed description will be omitted.

[0199] A second capping layer 393 may be placed on the light-transmitting pattern 350, the first wavelength conversion pattern 330, and the second wavelength conversion pattern 340. The second capping layer 393 may cover and seal the light-transmitting pattern 350, the first wavelength conversion pattern 330, the second wavelength conversion pattern 340, and the barrier 370. As a result, the light-transmitting pattern 350, the first wavelength conversion pattern 330, and the second wavelength conversion pattern 340 may be prevented from being damaged or contaminated by external impurities (such as moisture or air). In some embodiments, the second capping layer 393 may be formed of an inorganic material. In some embodiments, the second capping layer 393 may be formed of the same material as the first capping layer 391, or may include at least one of the aforementioned materials used in the first capping layer 391, but this disclosure is not limited thereto.

[0200] As described above, the filler 70 can be placed in the space between the color conversion substrate 30 and the display substrate 10. In some embodiments, the filler 70 can be placed between the second capping layer 393 and the thin film encapsulation layer 170. In some embodiments, the filler 70 can be in direct contact with the second capping layer 393.

[0201] As described above, the light-shielding member 220, the light-shielding pattern 240, and the barrier 370 can be arranged in the light-shielding area BA of the color conversion substrate 30. However, the barrier 370, the light-shielding member 220, and the light-shielding pattern 240 can be arranged only in some of the light-shielding areas BA. The light-shielding member 220, the light-shielding pattern 240, and the barrier 370, as well as the light-transmitting area TA, arranged in the color conversion substrate 30 will be described in further detail below.

[0202] Figure 12 This is a plan view illustrating the arrangement of barriers in a color conversion substrate according to an embodiment of the present disclosure. Figure 13 This is a plan view illustrating the arrangement of light-shielding members in a color conversion substrate according to an embodiment of the present disclosure. Figure 14 This is a plan view illustrating the arrangement of light-shielding patterns in a color conversion substrate according to an embodiment of the present disclosure. Figure 15 It is along Figure 3 and Figure 4 The cross-sectional view taken from line X5-X5'. Figure 16 It is along Figure 3 and Figure 4 The cross-sectional view taken from line X6-X6'. Figure 17 It is along Figure 3 and Figure 4 The cross-sectional view taken from line X7-X7'.

[0203] Figure 15 This is a cross-sectional view of a portion of the ninth light-shielding region BA9 across the color conversion substrate 30. Figure 16 It is a cross-sectional view taken from the portion spanning the third light-transmitting zone TA3 and the sixth light-transmitting zone TA6, and Figure 17 It is a cross-sectional view taken across the second light-transmitting zone TA2 and the fifth light-transmitting zone TA5.

[0204] refer to Figures 12 to 17 And further reference Figure 5 and Figure 6 The barrier 370 can extend on the color conversion substrate 30 in the second direction DR2. As described above, the barrier 370 can be arranged in all light-shielding areas BA except for the third light-shielding area BA3 and the sixth light-shielding area BA6. The barrier 370 can be omitted in the ninth light-shielding area BA9 between the light-transmitting areas TA (e.g., between the first light-transmitting area TA1 and the fourth light-transmitting area TA4, between the second light-transmitting area TA2 and the fifth light-transmitting area TA5, and between the third light-transmitting area TA3 and the sixth light-transmitting area TA6). As a result, the first color filter 231, the second color filter 232, the third color filter 233, the first wavelength conversion pattern 330, the second wavelength conversion pattern 340, and the light-transmitting pattern 350 can be arranged to extend on the color conversion substrate 30 in the second direction DR2, that is, they can be formed as stripes.

[0205] like Figures 15 to 17 As shown, the first color filter 231, the second color filter 232, the third color filter 233, the first wavelength conversion pattern 330, the second wavelength conversion pattern 340, and the light-transmitting pattern 350 can be placed in the ninth light-shielding area BA9. The portion of the display substrate 10 that overlaps with the ninth light-shielding area BA9 can correspond to the non-emissive area NLA where no light-emitting element ED is disposed, and in the non-emissive area NLA, the panel light-shielding member 190 of the display substrate 10 can be arranged to extend.

[0206] However, this disclosure is not limited thereto. Alternatively, the barrier 370 may be arranged to extend in the ninth light-shielding area BA9 in the first direction DR1. In this case, the first color filter 231, the second color filter 232, the third color filter 233, the first wavelength conversion pattern 330, the second wavelength conversion pattern 340, and the light-transmitting pattern 350 may be spaced apart from each other on the color conversion substrate 30 in the second direction DR2, i.e., they may be formed as islands.

[0207] The first wavelength conversion pattern 330 can be arranged in the first light-transmitting area TA1 and the fourth light-transmitting area TA4 within the space defined by the barrier 370. The second wavelength conversion pattern 340 can be arranged in the second light-transmitting area TA2 and the fifth light-transmitting area TA5 within the space defined by the barrier 370. The light-transmitting pattern 350 can be arranged in the third light-transmitting area TA3 and the sixth light-transmitting area TA6 within the space defined by the barrier 370.

[0208] The light-shielding member 220 and the light-shielding pattern 240 can be arranged in the light-shielding area BA and can together form a single grid pattern. For example... Figure 13 As shown, the light-shielding member 220 can be placed in areas other than the ninth light-shielding area BA9 and the third and sixth light-shielding areas BA3 and BA6. The light-shielding pattern 240 can be placed in areas where the light-shielding member 220 is not disposed, that is, in the third and sixth light-shielding areas BA3 and BA6 where the same light-transmitting areas are arranged adjacent to each other, and in the portion of the ninth light-shielding area BA9. The light-shielding member 220 and the light-shielding pattern 240 can be arranged to surround the light-transmitting area TA.

[0209] In one example, the color conversion substrate 30 may include a first type of light-transmitting area and a second type of light-transmitting area. Light-shielding members 220 are arranged on both sides of the first type of light-transmitting area, and a light-shielding member 220 is placed on one side of the second type of light-transmitting area and a light-shielding pattern 240 is arranged on the other side. As described above, the color conversion substrate 30 may include a first light-transmitting area TA1, a second light-transmitting area TA2, and a third light-transmitting area TA3 placed in the first row RT1. It may also include an area where the first light-transmitting area TA1, the second light-transmitting area TA2, and the third light-transmitting area TA3 are arranged in the order of first light-transmitting area TA1, second light-transmitting area TA2, and third light-transmitting area TA3, and an area where the first light-transmitting area TA1, the second light-transmitting area TA2, and the third light-transmitting area TA3 are arranged in the order of third light-transmitting area TA3, second light-transmitting area TA2, and first light-transmitting area TA1. The light-shielding members 220 may be arranged in some of the light-shielding areas TA1, second light-transmitting area TA2, and third light-transmitting area TA3.

[0210] At least some of the first light-transmitting area TA1, the second light-transmitting area TA2, and the third light-transmitting area TA3 (e.g., the first light-transmitting area TA1 and the second light-transmitting area TA2) may have light-shielding members 220 arranged on both sides. That is, the first light-transmitting area TA1 and the second light-transmitting area TA2 may be light-transmitting areas of the first type. Figure 5 , Figure 6 and Figure 11 As shown in the cross-sectional view, light-shielding members 220 and barriers 370 can be arranged on both sides of the first light-transmitting area TA1 and the second light-transmitting area TA2. Therefore, light-shielding members 220 or barriers 370 can also be arranged on both sides of the first color filter 231, the second color filter 232, the first wavelength conversion pattern 330, and the second wavelength conversion pattern 340.

[0211] Simultaneously, in the first row RT1 of the color conversion substrate 30, the third light-shielding area BA3 can be placed between the area where the first light-transmitting area TA1, the second light-transmitting area TA2, and the third light-transmitting area TA3 are arranged in the order of first light-transmitting area TA1, second light-transmitting area TA2, and third light-transmitting area TA3, and the area where the first light-transmitting area TA1, the second light-transmitting area TA2, and the third light-transmitting area TA3 are arranged in the order of third light-transmitting area TA3, second light-transmitting area TA2, and first light-transmitting area TA1. In one example, no barrier 370 and light-shielding member 220 are provided in the third light-shielding area BA3, and the light-shielding pattern 240 can be placed in the third light-shielding area BA3. Therefore, the light-shielding member 220 can be arranged on one side of the third light-transmitting area TA3 and the light-shielding pattern 240 can be arranged on the other side. That is, the third light-transmitting area TA3 can be a second type of light-transmitting area. Figure 5 , Figure 6 and Figure 10As shown, one side of the third light-transmitting area TA3 can be provided with a light-shielding member 220 and a barrier 370, and the other side can be provided with only a light-shielding pattern 240. Therefore, one side of the third color filter 233 can be provided with a light-shielding member 220 and the other side can be provided with a light-shielding pattern 240. Conversely, barriers 370 can be provided on both sides of the light-transmitting pattern 350 and can overlap with the light-shielding pattern 240. That is, the light-transmitting pattern 350 can be placed in the third light-transmitting area TA3 adjacent to the third light-shielding area BA3 and across the third light-transmitting area TA3. In other words, the light-transmitting patterns 350 in adjacent third light-transmitting areas TA3 can be connected to each other and thus integrated.

[0212] In one example, at least a portion of the light-transmitting pattern 350 may overlap with the light-shielding pattern 240. The light-transmitting pattern 350 may be arranged to overlap with one or more light-transmitting areas disposed on the first direction DR1. The light-shielding pattern 240 may be arranged in an area where one or more light-transmitting areas are arranged adjacent to each other, and the light-transmitting pattern 350 may be formed to overlap with and cover the light-shielding pattern 240. In one example, the width of the light-transmitting pattern 350 may be greater than the width of the first wavelength conversion pattern 330 and the second wavelength conversion pattern 340.

[0213] However, this disclosure is not limited thereto. Alternatively, the light-shielding pattern 240 can be placed in a light-shielding area other than a third light-shielding area BA3 in which the third light-transmitting area TA3 is arranged adjacent to each other, for example, in a seventh light-shielding area BA7 in which the first light-transmitting area TA1 and other first light-transmitting areas TA1 are arranged adjacent to each other. In this case, the color conversion substrate 30 may include a second light-transmitting area TA2 as a first type of light-transmitting area and a first light-transmitting area TA1 and a third light-transmitting area TA3 as second type of light-transmitting areas. Therefore, the first wavelength conversion pattern 330 may also be formed to overlap with and cover the light-shielding pattern 240. Furthermore, the light-shielding pattern 240 may be arranged in a ninth light-shielding area BA9 to extend in the first direction DR1. Various other embodiments of the arrangement of the light-shielding pattern 240 will be described later.

[0214] The shape of the light-shielding pattern 240 can be achieved by setting some of the light-transmitting areas TA adjacent to their respective identical light-transmitting areas TA during the manufacture of the color conversion substrate 30, and without providing a barrier 370 between adjacent identical light-transmitting areas TA. In the case where the first wavelength conversion pattern 330, the second wavelength conversion pattern 340, and the light-transmitting pattern 350 are formed by inkjet printing, ink needs to be sprayed into the area corresponding to the light-transmitting area TA. A small amount of ink can be sprayed into light-transmitting areas with relatively small areas (such as a third light-transmitting area TA3). In the color conversion substrate 30, identical light-transmitting areas can be set adjacent to each other, and no barrier 370 needs to be provided between adjacent identical light-transmitting areas. Because identical light-transmitting areas with relatively small areas are arranged adjacent to each other, ink can be sprayed into adjacent identical light-transmitting areas simultaneously, and as a result, the ink impact accuracy required to accurately place the ink in each light-transmitting area TA can be reduced. Therefore, during the manufacture of the color conversion substrate 30 by inkjet printing, ink impact accuracy can be improved, and the distribution of inkjet printing processes using multiple nozzles can be improved. The manufacturing process of the color conversion substrate 30 will be described below.

[0215] Figures 18 to 23 This is a cross-sectional view illustrating the manufacturing process of a display device according to an embodiment of the present disclosure.

[0216] Figures 18 to 23 The illustration shows how to manufacture the color conversion substrate 30 of the display device 1. Figures 18 to 23 The diagram illustrates a second light-transmitting area TA2 and two adjacent third light-transmitting areas TA3. That is, the fabrication of the color conversion substrate 30 will be described below using one first-type light-transmitting area and two second-type light-transmitting areas. However, the following description can also be applied to other light-transmitting areas TA, such as the first light-transmitting area TA1, the fourth light-transmitting area TA4, the fifth light-transmitting area TA5, and the sixth light-transmitting area TA6.

[0217] refer to Figures 18 to 23 The light-shielding member 220 is formed on the surface of the second base portion 310, such as Figure 18 As shown in the diagram, the light-shielding member 220 is provided as described above. The light-shielding member 220 disposed on the surface of the second base portion 310 may include a first light-shielding member 221 placed in the first light-shielding area BA1 and a second light-shielding member 222 placed in the second light-shielding area BA2. As mentioned above, the light-shielding member 220 may not be disposed in the third light-shielding area BA3. The light-shielding member 220 may have a grid pattern formed on the surface of the second base portion 310.

[0218] Subsequently, as Figure 19As shown, a color filter 230 is formed on the surface of the second substrate portion 310 between the light-shielding members 220. The color filter 230 can be formed in the region overlapping with the light-transmitting region TA. The color filter 230 can be formed by applying a photosensitive organic material including a specific colorant and exposing and developing the photosensitive organic material. In one example, a first color filter 231 can be formed by applying a photosensitive organic material including a red colorant and exposing and developing the photosensitive organic material including a red colorant; a second color filter 232 can be formed by applying a photosensitive organic material including a green colorant and exposing and developing the photosensitive organic material including a green colorant; and a third color filter 233 can be formed by applying a photosensitive organic material including a blue colorant and exposing and developing the photosensitive organic material including a blue colorant.

[0219] The second color filter 232 can be formed between the first light-shielding member 221 and the second light-shielding member 222, and the third color filter 233 can be formed in the third light-transmitting area TA3 between the second light-shielding members 222. The first and second sides of the second color filter 232 can be placed on the first light-shielding member 221 and the second light-shielding member 222, respectively. The first side of the third color filter 233 can be arranged on the second light-shielding member 222, and the second side of the third color filter 233 can be arranged on the second base portion 310. The third color filters 233 are illustrated as being spaced apart from each other in the third light-shielding area TA3, but this disclosure is not limited thereto. Alternatively, the third color filters 233 arranged in adjacent third light-transmitting areas TA3 can be integrally formed.

[0220] Subsequently, as Figure 20 As shown, a first capping layer 391 is formed covering the second color filter 232, the third color filter 233, the first light-shielding member 221, and the second light-shielding member 222, and a barrier 370 is formed in the first light-shielding area BA1 and the second light-shielding area BA2. The arrangement and shape of the barrier 370 and the first capping layer 391 are as described above. In the third light-transmitting area TA3, where the third light-transmitting area TA3 is arranged adjacent to each other, the barrier 370 may not be arranged. In the third light-shielding area BA3, the first capping layer 391 may partially contact the second base portion 310, but this disclosure is not limited thereto. Alternatively, if the third color filter 233 is integrally formed, the first capping layer 391 may not contact the second base portion 310 in the third light-shielding area BA3.

[0221] Subsequently, as Figure 21 and Figure 22As shown, a second wavelength conversion pattern 340 and a light-transmitting pattern 350 are formed by spraying ink into a second light-transmitting area TA2 and a third light-transmitting area TA3. The second wavelength conversion pattern 340 and the light-transmitting pattern 350 can be formed in an area surrounded by a barrier 370. As described above, each of the second wavelength conversion patterns 340 can be formed in one second light-transmitting area TA2 surrounded by a barrier 370. The light-transmitting pattern 350 can be formed in two adjacent third light-transmitting areas TA3 and third light-blocking areas BA3 surrounded by barriers 370. As shown, the second wavelength conversion patterns 340 can be sprayed into their respective second light-transmitting areas TA2 through a single nozzle, and the light-transmitting pattern 350 can be sprayed into two adjacent third light-transmitting areas TA3 simultaneously through two nozzles. The third width WT3 of the third light-transmitting area TA3 can be smaller than the second width WT2 of the second light-transmitting area TA2, and a small amount of ink can be sprayed into each of the third light-transmitting areas TA3. However, in display device 1, since the barrier 370 is not provided between two adjacent third light-transmitting areas TA3, a relatively large amount of ink can be simultaneously sprayed into the two adjacent third light-transmitting areas TA3. As a result, ink impact accuracy can be improved during the manufacturing of color conversion substrate 30, and the distribution of inkjet processes using multiple nozzles can be improved by simplifying the manufacturing of color conversion substrate 30.

[0222] After the light-transmitting pattern 350 is formed, a light-shielding pattern 240 is formed by applying a laser to a portion LIA of the light-transmitting pattern 350 placed in the third light-shielding area BA3. The laser can be applied to a portion LIA of the third light-shielding area BA3, and portions of the light-transmitting pattern 350, the third color filter 233, and the first capping layer 391 can be carbonized by the laser. The light-shielding pattern 240 can be formed in the area carbonized by the laser.

[0223] In one example, the laser can be applied from below a surface of the second base portion 310 opposite to one surface of the second base portion 310 on which the light-transmitting pattern 350 is formed. That is, the laser can be applied to the light-transmitting pattern 350 from below the other surface of the second base portion 310, and the light-shielding pattern 240 can be formed directly on one surface of the second base portion 310. As described above, the light-shielding pattern 240 can be arranged between adjacent third light-transmitting areas TA3 to prevent color mixing between them. However, the light-shielding pattern 240 does not necessarily have to be formed on one surface of the second base portion 310. Alternatively, the laser can be applied from above one surface of the second base portion 310, and the light-shielding pattern 240 can be formed spaced apart from the second base portion 310. This will be described in detail later.

[0224] Subsequently, as Figure 23As shown, the second capping layer 393 is formed to cover the second wavelength conversion pattern 340, the barrier 370, and the light-transmitting pattern 350, and the display substrate 10 and the color conversion substrate 30 are bonded together to obtain the display device 1. In one example, during the manufacturing of the color conversion substrate 30, the barrier 370 may not be provided between adjacent identical light-transmitting areas (e.g., between third light-transmitting areas TA3), and the light-transmitting pattern 350 may be integrally formed simultaneously in the third light-transmitting area TA3 and the third light-shielding area BA3. The light-transmitting pattern 350 may be arranged in two adjacent third light-transmitting areas TA3 and in the third light-shielding area BA3 located between two adjacent third light-transmitting areas TA3, and may overlap with the light-shielding pattern 240 in the third light-shielding area BA3. Therefore, during the manufacturing of the color conversion substrate 30, the ink impact accuracy for forming the light-transmitting pattern 350 can be improved, and the distribution of inkjet printing processes using multiple nozzles can be improved. Furthermore, the light-blocking pattern 240 can be formed in the third light-blocking area BA3 near the two adjacent third light-transmitting areas TA3, and can prevent color mixing between the two adjacent third light-transmitting areas TA3.

[0225] The color conversion substrate 30 of the display device 1 according to another embodiment of the present disclosure will be described below.

[0226] Figure 24 This is a plan view illustrating the arrangement of light-shielding patterns in a color conversion substrate according to another embodiment of the present disclosure.

[0227] refer to Figure 24 In the process, the light-shielding pattern 240_1 of the color conversion substrate 30_1 can be arranged in the third light-shielding area BA3 between two adjacent third light-transmitting areas TA3 and in the seventh light-shielding area BA7 between two adjacent first light-transmitting areas TA1. Figure 24 Color conversion substrate 30_1 and Figure 14 The color conversion substrate 30 is the same, except that the light-shielding pattern 240_1 is also arranged in the seventh light-shielding area BA7 and the eighth light-shielding area BA8. The following text will mainly focus on the color conversion substrate 30. Figure 14 To describe the differences of the color conversion substrate 30 Figure 24 Color conversion substrate 30_1.

[0228] In the first row RT1 of the color conversion substrate 30_1, the first light-transmitting area TA1, the second light-transmitting area TA2, and the third light-transmitting area TA3 can be arranged in either the order of first light-transmitting area TA1, second light-transmitting area TA2, and third light-transmitting area TA3 or the order of third light-transmitting area TA3, second light-transmitting area TA2, and first light-transmitting area TA1. Between the area where the first light-transmitting area TA1, second light-transmitting area TA2, and third light-transmitting area TA3 are arranged in the order of first light-transmitting area TA1, second light-transmitting area TA2, and third light-transmitting area TA3, and the area where the first light-transmitting area TA1, second light-transmitting area TA2, and third light-transmitting area TA3 are arranged in the order of third light-transmitting area TA3, second light-transmitting area TA2, and first light-transmitting area TA1, two identical light-transmitting areas TA (e.g., first light-transmitting area TA1 or third light-transmitting area TA3) can be arranged adjacent to each other. In the color conversion substrate 30_1, a barrier 370 and a light-shielding member 220 may not be provided between every two adjacent identical light-transmitting areas TA, and a light-shielding pattern 240_1 may be arranged between every two adjacent identical light-transmitting areas TA. Figure 14 The color conversion substrate 30 is different, in Figure 24 In the color conversion substrate 30_1, the barrier 370, the seventh light-shielding member 227, and the eighth light-shielding member 228 are not provided in the seventh light-shielding area BA7, in which two first light-transmitting areas TA1 are arranged adjacent to each other, and in the eighth light-shielding area BA8, in which two fourth light-transmitting areas TA4 are arranged adjacent to each other, and the light-shielding pattern 240_1 can be arranged in the seventh light-shielding area BA7 and the eighth light-shielding area BA8. Therefore, the first light-shielding member 221 can be arranged on the side of the first light-transmitting area TA1 adjacent to the second light-transmitting area TA2, and the light-shielding pattern 240_1 can be arranged on the side adjacent to the other first light-transmitting areas TA1. That is, in Figure 24 In the color conversion substrate 30_1, the first light-transmitting area TA1 can be a second type of light-transmitting area.

[0229] exist Figure 24 During the manufacture of the color conversion substrate 30_1, the light-transmitting pattern 350 and the first wavelength conversion pattern 330 can be formed in two light-transmitting areas TA (i.e., two third light-transmitting areas TA3 and two first light-transmitting areas TA1). Although not specifically illustrated, the first wavelength conversion pattern 330, like the light-transmitting pattern 350, can overlap with the light-shielding pattern 240_1.

[0230] Figure 25 This is a plan view illustrating the arrangement of light-shielding patterns in a color conversion substrate according to another embodiment of the present disclosure. Figure 26 It is along Figure 25 The cross-sectional view taken from line X8-X8'.

[0231] refer to Figure 25 and Figure 26 The light-shielding pattern 240_2 of the color conversion substrate 30_2 can be arranged in the ninth light-shielding area BA9 to extend in the first direction DR1. Figure 25 Color conversion substrate 30_2 and Figure 24 The color conversion substrate 30_1 is the same, except that the light-shielding pattern 240_2 is arranged in the ninth light-shielding area BA9. The following text will mainly focus on... Figure 24 To describe the differences of color conversion substrate 30_1 Figure 25 Color conversion substrate 30_2.

[0232] exist Figure 25 and Figure 26 In the color conversion substrate 30_2, a ninth light-shielding member 229 is not provided, and a light-shielding pattern 240_2 can be arranged in the ninth light-shielding area BA9. During the manufacture of the color conversion substrate 30_2, the light-shielding pattern 240_2 can be formed by applying a laser between each pair of adjacent identical light-transmitting areas (e.g., between the third light-transmitting area TA3 and between the first light-transmitting area TA1). The laser can also be applied between the first row RT1 and the second row RT2 of the color conversion substrate 30_2 (i.e., in the ninth light-shielding area BA9). The portion of the light-shielding pattern 240_2 arranged between each pair of adjacent light-transmitting areas can extend in the second direction DR2, and the portion of the light-shielding pattern 240_2 arranged between the first row RT1 and the second row RT2 can extend in the first direction DR1.

[0233] Although not specifically illustrated, the first wavelength conversion pattern 330, the second wavelength conversion pattern 340, and the light-transmitting pattern 350 can be formed as islands spaced apart from each other in the ninth light-shielding area BA9, rather than extending in the second direction DR2. Additionally, the first color filter 231, the second color filter 232, and the third color filter 233 can be formed as islands. In this case, in Figure 26 In the ninth light-shielding area BA9, the first color filter 231, the second color filter 232, the third color filter 233, the first wavelength conversion pattern 330, the second wavelength conversion pattern 340, and the light-transmitting pattern 350 may not be arranged, and a barrier 370 may be formed instead.

[0234] Figure 27 and Figure 28 This is a cross-sectional view illustrating a light-shielding pattern according to other embodiments of the present disclosure.

[0235] As described above, the laser used to form the light-shielding pattern 240 during the manufacture of the color conversion substrate 30 does not necessarily need to be applied from below the other surface of the second substrate portion 310. Furthermore, the light-shielding pattern 240 does not necessarily need to be formed by applying a laser, but can be formed by patterning a material substantially the same as the material of the light-shielding member 220.

[0236] refer to Figure 27 The light-blocking pattern 240_4 can be arranged on one surface of the second capping layer 393. Figure 27 In the color conversion substrate 30_4, a light-shielding pattern 240_4 can be arranged on the second capping layer 393, and can prevent color mixing that may occur between adjacent third light-transmitting regions TA3. The light-shielding pattern 240_4 can be spaced apart from the second substrate portion 310. In this case, compared to in Figure 5 and Figure 6 In the color conversion substrate 30, the light-shielding pattern 240_4 can be placed closer to the display substrate 10 on which the emitted light L is incident.

[0237] In one example, the thickness TH240_4 of the light-shielding pattern 240_4 placed on the second capping layer 393 can be less than the thickness TH240 of the light-shielding pattern 240 located on one surface of the second base portion 310. When the light-shielding pattern 240_4 is placed close to the light-emitting element ED, even if the light-shielding pattern 240_4 is thinner than when it is placed on one surface of the second base portion 310, it can prevent light emitted from any light-emitting element (i.e., the third light-emitting element ED3) from being output to other third light-transmitting areas TA3 besides their respective third light-transmitting areas TA3.

[0238] The light-shielding pattern 240_4 may include a material substantially the same as that of the light-shielding member 220, and may be formed using the same method as the light-shielding member 220. It can be formed by forming a light-transmitting pattern 350 and a second capping layer 393 covering the light-transmitting pattern 350 on one surface of the second base portion 310, and by coating and exposing an organic light-shielding material on the second capping layer 393. Figure 27 The light-blocking pattern 240_4 is disclosed, but this disclosure is not limited thereto.

[0239] refer to Figure 28 The light-shielding pattern 240_5 can be formed to be spaced apart from the second substrate portion 310, but can be surrounded by the light-transmitting pattern 350. That is, the side surface of the light-shielding pattern 240_5 can contact the light-transmitting pattern 350, but not the third color filter 233. The light-shielding pattern 240_5 can be formed by forming the light-transmitting pattern 350 and a second capping layer 393 covering the light-transmitting pattern 350 on one surface of the second substrate portion 310, and applying a laser from above the second capping layer 393 to carbonize the second capping layer 393 and portions of the light-transmitting pattern 350. Figure 5 and Figure 6 The light-blocking patterns are 240 different. Figure 28The light-shielding pattern 240_5 can be spaced apart from the second base portion 310 and thus can contact the second capping layer 393 instead of the first capping layer 391.

[0240] also, Figure 28 The light-blocking pattern 240_5 can be placed more than Figure 5 and Figure 6 The light-shielding pattern 240 is closer to the display substrate 10 on which the emitting light L is incident.

[0241] In one example, the thickness TH240_5 of the light-shielding pattern 240_5 formed to contact the second capping layer 393 can be smaller than the thickness TH240 of the light-shielding pattern 240 placed on a surface of the second base portion 310. This is consistent with the above reference. Figure 27 The descriptions are identical, and therefore, their detailed descriptions will be omitted.

[0242] Figure 29 and Figure 30 This is a cross-sectional view of a display device according to other embodiments of the present disclosure. Figure 29 This is a cross-sectional view across the first light-transmitting area TA1, the second light-transmitting area TA2, and the third light-transmitting area TA3 of the display device 1 according to another embodiment of the present disclosure, and Figure 30 This is a cross-sectional view across the second light-transmitting area TA2, the third light-transmitting area TA3, and another third light-transmitting area TA3 of the display device 1 according to another embodiment of the present disclosure.

[0243] refer to Figure 29 and Figure 30 The color conversion substrate 30_6 may further include multiple color patterns 251_6, 252_6 and 257_6. Figure 29 and Figure 30 Color conversion substrate 30_6 and Figure 5 and Figure 6 The color conversion substrate 30 is the same as that of the second substrate portion 310, except that it further includes color patterns 251_6, 252_6, and 257_6 arranged on one surface of the second substrate portion 310. Therefore, the following will focus mainly on the color conversion substrate 30 of the second substrate portion 310. Figure 5 and Figure 6 To describe the differences of the color conversion substrate 30 Figure 29 and Figure 30 Color conversion substrate 30_6.

[0244] Color patterns 251_6, 252_6 and 257_6 can reduce the reflection of external light by absorbing some of the light incident from outside the display device 1 onto the color conversion substrate 30_6.

[0245] In some embodiments, like the third color filter 233, the color patterns 251_6, 252_6, and 257_6 may include a blue colorant such as a blue pigment or blue dye. In some embodiments, the color patterns 251_6, 252_6, and 257_6 may be formed of the same material as the third color filter 233 and may be formed during the formation of the third color filter 233. That is, the third color filter 233 and the color patterns 251_6, 252_6, and 257_6 can be formed simultaneously by applying a photosensitive organic material including a blue colorant to a surface of the second substrate portion 310 and exposing and developing the photosensitive organic material.

[0246] In some embodiments, the thickness of color patterns 251_6, 252_6, and 257_6 can be substantially the same as the thickness of the third color filter 233. When color patterns 251_6, 252_6, and 257_6 include a blue colorant, external or reflected light passing through color patterns 251_6, 252_6, and 257_6 can have a blue wavelength range. Eye color sensitivity can vary depending on the color of light. Specifically, blue wavelength light is perceived less sensitively by a user compared to green and red wavelength light. Therefore, since color patterns 251_6, 252_6, and 257_6 include a blue colorant, the user can perceive reflected light less sensitively.

[0247] Some of the color patterns 251_6, 252_6, and 257_6 may be placed on the surface of the second base portion 310 and may be located within the light-shielding area BA. Furthermore, the color patterns 251_6, 252_6, and 257_6 may be arranged to overlap with the non-emissive area NLA. In some embodiments, the color patterns 251_6, 252_6, and 257_6 may be in direct contact with the surface of the second base portion 310. Alternatively, if a separate buffer layer for preventing impurity introduction is disposed on the surface of the second base portion 310, the color patterns 251_6, 252_6, and 257_6 may be in direct contact with the buffer layer.

[0248] In some embodiments, color patterns 251_6, 252_6, and 257_6 may include a first color pattern 251_6 placed in a first light-shielding area BA1, a second color pattern 252_6 placed in a second light-shielding area BA2, and a seventh color pattern 257_6 placed in a seventh light-shielding area BA7. Although not specifically illustrated, color patterns may also be arranged in a fourth light-shielding area BA4, a fifth light-shielding area BA5, an eighth light-shielding area BA8, and a ninth light-shielding area BA9. However, color patterns may be formed in the third light-shielding area BA3 and the sixth light-shielding area BA6 using a process substantially the same as that used for the third color filter 233, and the light-shielding pattern 240 may be formed by laser. The color pattern adjacent to the third color filter 233 (i.e., the second color pattern 252_6) may be connected to the third color filter 233.

[0249] Since color patterns 251_6, 252_6, and 257_6 are arranged on the surface of the second base portion 310, light-shielding members 220 can be placed on color patterns 251_6, 252_6, and 257_6. In some embodiments, a first light-shielding member 221 can be placed on a first color pattern 251_6, a second light-shielding member 222 can be placed on a second color pattern 252_6, and a seventh light-shielding member 227 is placed on a seventh color pattern 257_6. Although not specifically illustrated, color patterns can also be placed on a fourth light-shielding member 224, a fifth light-shielding member 225, an eighth light-shielding member 228, and a ninth light-shielding member 229. In some embodiments, since color patterns 251_6, 252_6, and 257_6 are placed between the light-shielding member 220 and the second base portion 310, the light-shielding member 220 may not be in contact with the second base portion 310.

[0250] Color patterns 251_6, 252_6 and 257_6 can reduce the reflection of external light by absorbing some of the light incident from outside the display device 1 onto the color conversion substrate 30.

[0251] Meanwhile, the display device 1 may have an emitting region LA of the display substrate 10 and a light-transmitting region TA of the color conversion substrate 30, and... Figure 3 and Figure 4 The layouts shown are different. In some embodiments, different emission areas LA and different light-transmitting areas TA can be alternately set in the first direction DR1 and the second direction DR2.

[0252] Figure 31 This is a plan view of a display substrate in the display area of ​​a display device according to another embodiment of the present disclosure. Figure 32 This is a plan view of a color conversion substrate in the display area of ​​a display device according to another embodiment of the present disclosure. Figure 33This is a plan view of the arrangement of barriers and light-shielding members in a color conversion substrate according to another embodiment of the present disclosure. Figure 34 This is a plan view of the arrangement of light-shielding patterns in a color conversion substrate according to another embodiment of the present disclosure.

[0253] refer to Figures 31 to 34 The display substrate 10_7 may include multiple emission areas LA disposed in multiple rows RL in the display area DA. The rows RL may include odd-numbered rows RL1, RL3, RL5, ... and even-numbered rows RL2, RL4, RL6, ... and may include emission areas LA of different types from each other.

[0254] In one example, in the first row RL1 of the display substrate 10_7, the third emitting region LA3 can be repeatedly arranged, and in the second row RL2 of the display substrate 10_7, the first emitting region LA1 and the second emitting region LA2 can be alternately arranged. The first emitting region LA1 and the second emitting region LA2 can be arranged in the second row RL2 to be spaced apart from each other in the first direction DR1, and the third emitting region LA3 can be arranged in the first row RL1 to be aligned in the second direction DR2 in the space between the first emitting region LA1 and the second emitting region LA2, and thus can be arranged in an alternating manner with the first emitting region LA1 and the second emitting region LA2. In the first row RL1, which is an odd-numbered row, the third emitting region LA3 can be arranged, and in the second row RL2, which is an even-numbered row, the first emitting region LA1 and the second emitting region LA2 can be arranged.

[0255] Conversely, in the third row (RL3), which is an odd-numbered row, the fourth emission area LA4 and the fifth emission area LA5 can be alternately arranged, and in the fourth row (RL4), which is an even-numbered row, the sixth emission area LA6 can be repeatedly arranged. The fourth emission area LA4 and the fifth emission area LA5 can be arranged in the third row (RL3) spaced apart from each other in the first direction DR1, and the sixth emission area LA6 can be arranged in the fourth row (RL4) aligned in the second direction DR2 in the space between the fourth emission area LA4 and the fifth emission area LA5, and thus can be arranged in an alternating manner with the fourth emission area LA4 and the fifth emission area LA5. The arrangement of the emission areas LA in the first row (RL1) and the second row (RL2) can be symmetrical with the arrangement of the emission areas LA in the third row (RL3) and the fourth row (RL4).

[0256] The arrangement of the transmission areas LA in the fifth row RL5 and the sixth row RL6 can be the same as the arrangement of the transmission areas LA in the first row RL1 and the second row RL2. That is, in the fifth row RL5, the third transmission area L3 can be set repeatedly, and in the sixth row RL6, the first transmission area LA1 and the second transmission area LA2 can be set alternately.

[0257] Therefore, the first emitting region LA1 and the fourth emitting region LA4 can be arranged adjacent to each other in the second direction DR2, and the second emitting region LA2 and the fifth emitting region LA5 can be arranged adjacent to each other in the second direction DR2. Furthermore, the third emitting region LA3 and the sixth emitting region LA6 can be arranged adjacent to each other in the second direction DR2. The arrangement of the emitting regions LA of the display substrate 10_7 can correspond to the arrangement of the light-transmitting regions TA of the color conversion substrate 30_7. In some embodiments, light-transmitting regions TA that transmit light of the same color can be arranged adjacent to each other, and the emitting regions LA corresponding to the light-transmitting regions TA that transmit light of the same color can also be arranged adjacent to each other.

[0258] As described above, the area where no emission area LA is located can be defined as a non-emission area NLA.

[0259] The emission region LA may have widths WL1, WL2, and WL3 in the first direction DR1. The first width WL1 of the first emission region LA1 and the second width WL2 of the second emission region LA2 are illustrated as being greater than the third width WL3 of the third emission region LA3, but this disclosure is not limited thereto. The widths and areas of the first emission region LA1, the second emission region LA2, the third emission region LA3, the fourth emission region LA4, the fifth emission region LA5, and the sixth emission region LA6 may be varied as needed.

[0260] Similarly, the display area DA of the color conversion substrate 30_7 may include multiple light-transmitting areas TA arranged in multiple rows RT. The rows RT may include odd-numbered rows RT1, RT3, RT5, ... and even-numbered rows RT2, RT4, RT6, ... and may include light-transmitting areas TA of different types from each other.

[0261] In one example, in the first row RT1 of the color conversion substrate 30_7, the third light-transmitting area TA3 can be repeatedly arranged, and in the second row RT2 of the color conversion substrate 30_7, the first light-transmitting area TA1 and the second light-transmitting area TA2 can be alternately arranged. The first light-transmitting area TA1 and the second light-transmitting area TA2 can be arranged in the second row RT2 to be spaced apart from each other in the first direction DR1, and the third light-transmitting area TA3 can be arranged in the first row RT1 to be aligned in the second direction DR2 in the space between the first light-transmitting area TA1 and the second light-transmitting area TA2, and thus can be arranged in an alternating manner with the first light-transmitting area TA1 and the second light-transmitting area TA2. In the first row RT1, which is an odd-numbered row, the third light-transmitting area TA3 can be arranged, and in the second row RT2, which is an even-numbered row, the first light-transmitting area TA1 and the second light-transmitting area TA2 can be arranged.

[0262] Conversely, in the third row (RT3), which is an odd-numbered row, the fourth light-transmitting zone TA4 and the fifth light-transmitting zone TA5 can be alternately arranged, and in the fourth row (RT4), which is an even-numbered row, the sixth light-transmitting zone TA6 can be repeatedly arranged. The fourth and fifth light-transmitting zones TA4 and TA5 can be arranged in the third row (RT3) spaced apart from each other in the first direction (DR1), and the sixth light-transmitting zone TA6 can be arranged in the fourth row (RT4) aligned in the second direction (DR2) in the space between the fourth and fifth light-transmitting zones TA4 and TA5, thus being arranged in an alternating manner with the fourth and fifth light-transmitting zones TA5. The arrangement of the light-transmitting zones TA in the first row (RT1) and the second row (RT2) can be symmetrical to the arrangement of the light-transmitting zones TA in the third row (RT3) and the fourth row (RT4).

[0263] The arrangement of the light-transmitting areas TA in the fifth row RT5 and the sixth row RT6 can be the same as the arrangement of the light-transmitting areas TA in the first row RT1 and the second row RT2. That is, in the fifth row RT5, the third light-transmitting area TA3 can be set repeatedly, and in the sixth row RT6, the first light-transmitting area TA1 and the second light-transmitting area TA2 can be set alternately.

[0264] Therefore, the first light-transmitting area TA1 and the fourth light-transmitting area TA4 can be arranged adjacent to each other in the second direction DR2, and the second light-transmitting area TA2 and the fifth light-transmitting area TA5 can be arranged adjacent to each other in the second direction DR2. Furthermore, the third light-transmitting area TA3 and the sixth light-transmitting area TA6 can be arranged adjacent to each other in the second direction DR2.

[0265] As described above, since color filters containing the same colorant (e.g., first color filter 231) are arranged in the first light-transmitting area TA1 and the fourth light-transmitting area TA4, the first light-transmitting area TA1 and the fourth light-transmitting area TA4 can transmit light of the same color. Furthermore, since color filters containing the same colorant (e.g., second color filter 232) are arranged in the second light-transmitting area TA2 and the fifth light-transmitting area TA5, the second light-transmitting area TA2 and the fifth light-transmitting area TA5 can transmit light of the same color. Moreover, since color filters containing the same colorant (e.g., third color filter 233) are arranged in the third light-transmitting area TA3 and the sixth light-transmitting area TA6, the third light-transmitting area TA3 and the sixth light-transmitting area TA6 can transmit light of the same color.

[0266] Although not specifically illustrated, the first wavelength conversion pattern 330 and the first color filter 231 can be arranged in the first light-transmitting region TA1, the second wavelength conversion pattern 340 and the second color filter 232 can be arranged in the second light-transmitting region TA2, and the light-transmitting pattern 350 and the third color filter 233 can be arranged in the third light-transmitting region TA3. Furthermore, the first wavelength conversion pattern 330 and the first color filter 231 can be arranged in the fourth light-transmitting region TA4, the second wavelength conversion pattern 340 and the second color filter 232 can be arranged in the fifth light-transmitting region TA5, and the light-transmitting pattern 350 and the third color filter 233 can be arranged in the sixth light-transmitting region TA6. Wavelength conversion patterns 330 and 340 and light-transmitting pattern 350 can be arranged in the area surrounded by a barrier 370_7 arranged in the light-shielding region BA, corresponding to the light-transmitting region TA. In some embodiments, wavelength conversion patterns 330 and 340 and light-transmitting pattern 350 can be arranged on one surface of the second substrate portion 310 to form an island pattern.

[0267] In the color conversion substrate 30_7, light-transmitting areas TA, in which identical color filters are arranged to transmit light of the same color, can be positioned adjacent to each other at least in the second direction DR2. The first light-transmitting area TA1 and the second light-transmitting area TA2, alternately arranged in the second row RT2 of the color conversion substrate 30_7, can be positioned adjacent to the fourth light-transmitting area TA4 and the fifth light-transmitting area TA5, respectively, alternately arranged in the third row RT3 of the color conversion substrate 30_7. Furthermore, the sixth light-transmitting area TA6, repeatedly arranged in the fourth row RT4, can be positioned adjacent to the third light-transmitting area TA3, repeatedly arranged in the fifth row RT5. The emitting area LA of the display substrate 10_7 of the display device 1 can be positioned corresponding to the light-transmitting area TA of the color conversion substrate 30_7.

[0268] The light-blocking area BA can be defined in the area where no light-transmitting area TA is arranged. The light-blocking area BA can include a first light-blocking area BA1 between a first light-transmitting area TA1 and a second light-transmitting area TA2, and a third light-blocking area BA3 between a third light-transmitting area TA3. The light-blocking area BA can further include a fourth light-blocking area BA4 between a fourth light-transmitting area TA4 and a fifth light-transmitting area TA5, and a sixth light-blocking area BA6 between a sixth light-transmitting area TA6. The light-blocking area BA can further include a seventh light-blocking area BA7, an eighth light-blocking area BA8, and a ninth light-blocking area BA9 extending in the first direction DR1 between rows RT. The seventh light-blocking area BA7 can be arranged between the first row RT1 and the second row RT2, the eighth light-blocking area BA8 can be arranged between the second row RT2 and the third row RT3, and the ninth light-blocking area BA9 can be arranged between the fourth row RT4 and the fifth row RT5. The seventh light-blocking area BA7 can also be arranged between the third row RT3 and the fourth row RT4, and between the fifth row RT5 and the sixth row RT6.

[0269] As described above, the light-shielding member 220_7, the barrier 370_7, and the light-shielding pattern 240_7 can be arranged in the light-shielding area BA to separate each pair of adjacent light-transmitting areas TA. The light-shielding pattern 240 can be arranged between each pair of adjacent light-transmitting areas TA that transmit light of the same color. In one example, the light-shielding pattern 240 can be arranged between the first light-transmitting area TA1 and the fourth light-transmitting area TA4, which are respectively alternately arranged in the second row RT2 and the third row RT3, and between the second light-transmitting area TA2 and the fifth light-transmitting area TA5, which are respectively alternately arranged in the second row RT2 and the third row RT3. The light-shielding pattern 240_7 can be arranged in the eighth light-shielding area BA8 to separate each pair of adjacent light-transmitting areas TA in the second row RT2 and the third row RT3. Furthermore, the light-shielding pattern 240_7 can be arranged between the third light-transmitting area TA3, which is repeated in each of the fourth row RT4 and the fifth row RT5, that is, in the ninth light-shielding area BA9.

[0270] In the light-shielding area BA where the light-shielding pattern 240_7 is not arranged, light-shielding member 220_7 and barrier 370_7 can be arranged. Light-shielding member 220_7 and barrier 370_7 can be arranged in all light-shielding areas BA except for the eighth light-shielding area BA8 and the ninth light-shielding area BA9, to surround the light-transmitting area TA. Light-shielding member 220_7 and barrier 370_7 can separate each pair of adjacent light-transmitting areas that transmit light of different or the same color.

[0271] Light-shielding members 220_7 or barriers 370_7 can be arranged between each pair of adjacent light-transmitting areas TA to define each pair of adjacent light-transmitting areas TA, but light-shielding patterns 240_7 can be arranged between light-transmitting areas TA that transmit light of the same color. In the color conversion substrate 30_7, some light-transmitting areas TA that transmit light of the same color can be arranged adjacent to each other, without barriers 370_7 arranged between them. As described above, when wavelength conversion patterns 330 and 340 and light-transmitting pattern 350 are formed by inkjet printing, the necessary amount of ink needs to be sprayed at each corresponding position in the light-transmitting areas TA. When the light-transmitting areas TA that transmit light of the same color are arranged adjacent to each other, since ink can be sprayed into adjacent light-transmitting areas TA simultaneously, the ink impact accuracy required to accurately place the ink in each of the light-transmitting areas TA can be reduced. Therefore, during the manufacture of the color conversion substrate 30_7 by inkjet printing, ink impact accuracy can be improved, and the distribution of the inkjet printing process using multiple nozzles can be improved.

[0272] Furthermore, compared to the light-transmitting area TA and the light-emitting area LA... Figure 4 Their corresponding light-transmitting areas TA and emitting areas LA can have wider widths WL and WT in the first direction DR1, and compared to Figure 4 The corresponding transmittance regions TA and emittance regions LA in the second direction DR2 can have smaller lengths. Since the difference between the width of the transmittance region TA in the first direction DR1 and the length of the transmittance region TA in the second direction DR2 is reduced, any loss in the optical conversion efficiency of the wavelength conversion patterns 330 and 340 can be minimized.

[0273] Figure 35 and Figure 36 This is a plan view illustrating the arrangement of light-shielding patterns in each of the color conversion substrates according to other embodiments of the present disclosure.

[0274] refer to Figure 35 In the color conversion substrate 30_8, the light-shielding pattern 240_8 can be arranged only between adjacent light-transmitting areas TA. (This is in contrast to...) Figure 34 The differences in the embodiments are as follows: Figure 35In some embodiments, the light-shielding pattern 240_8 may be arranged only between the light-transmitting areas TA that transmit light of the same color. In one example, the light-shielding pattern 240_8 may be arranged only between the second row RT2 and the third row RT3, specifically between the first light-transmitting area TA1 and the fourth light-transmitting area TA4, and between the second light-transmitting area TA2 and the fifth light-transmitting area TA5. The light-shielding patterns 240_8 arranged between the second row RT2 and the third row RT3 may be spaced apart from each other in the first direction DR1. In the area between the second row RT2 and the third row RT3 where the light-shielding pattern 240_8 is not arranged, the light-shielding member 220 and the barrier 370 may be arranged.

[0275] exist Figure 34 In one embodiment, when a laser is applied along the space between the light-transmitting regions TA during the formation of the light-shielding pattern 240_7, the light-shielding pattern 240_7 can be formed to extend in the first direction DR1, but this disclosure is not limited thereto. Alternatively, the laser can be applied only to the space between adjacent light-transmitting regions TA, such that the light-shielding patterns 240_8 can be spaced apart from each other in the first direction DR1. The light-shielding patterns 240_8 can be formed as island patterns covering the entire surface of the color conversion substrate 30_8. Figure 35 Implementation examples and Figure 34 The difference in the embodiment lies in the arrangement of the light-shielding pattern 240_8.

[0276] Furthermore, some of the light-transmitting areas TA set in the same row can be the same light-transmitting areas TA arranged so that they are adjacent to each other.

[0277] refer to Figure 36 Some of the light-transmitting areas TA of the color conversion substrate 30_9 can be identical light-transmitting areas TA arranged adjacent to each other in the first direction DR1. In one example, the first light-transmitting area TA1 and the second light-transmitting area TA2 can be alternately arranged in the second row RT2, but the first light-transmitting area TA1 or the second light-transmitting area TA2 can be arranged adjacent to each other. The light-shielding pattern 240_9 can even be arranged between each pair of adjacent first light-transmitting areas TA1 and between each pair of adjacent second light-transmitting areas TA2. That is, the light-shielding pattern 240_9 can be arranged not only in the eighth light-shielding area BA8 and the ninth light-shielding area BA9, but also in the second light-shielding area BA2. In this case, no barrier 370 and light-shielding member 220 are arranged between the second light-transmitting area TA2 and the fifth light-transmitting area TA5 arranged adjacent to the second light-transmitting area TA2, and the second light-transmitting area TA2 and the fifth light-transmitting area TA5 can be separated from each other by the light-shielding pattern 240_9 between them. Figure 36 Implementation examples and Figure 34 The difference in the embodiment lies in the arrangement of the light-transmitting area TA and the light-blocking pattern 240_9.

[0278] In the color conversion substrate 30_9, different light-transmitting areas TA that transmit light of the same color, or the same light-transmitting areas TA that transmit light of the same color, can be arranged adjacent to each other, and the light-shielding pattern 240_9 can be arranged between these different light-transmitting areas TA or these same light-transmitting areas TA. Therefore, even if the area of ​​the light-transmitting area TA is reduced, the ink impact accuracy required for inkjet printing can be reduced, and the process distribution can be improved.

[0279] In summarizing the detailed description, those skilled in the art will understand that many changes and modifications can be made to the preferred embodiments without substantially departing from the principles of the invention. Therefore, the preferred embodiments of the invention disclosed herein are used in a general and descriptive sense only and not for limiting purposes.

Claims

1. A color conversion substrate, comprising: The base portion defines a first light-transmitting area, a second light-transmitting area spaced apart from the first light-transmitting area in a first direction, and a first light-shielding area located between the first light-transmitting area and the second light-transmitting area. A first color filter is placed on a surface of the base portion and overlaps with the first light-transmitting area; The second color filter is placed on one of the surfaces of the base portion and overlaps with the second light-transmitting area; A light-shielding pattern, overlapping the first light-shielding area, is placed on one of the surfaces of the base portion; as well as The light-transmitting pattern placed on the first color filter, the second color filter, and the light-blocking pattern. The first color filter and the second color filter both include a colorant of the first color.

2. The color conversion substrate according to claim 1, wherein, The substrate portion further defines a third light-transmitting area spaced apart from the second light-transmitting area in the first direction, and a second light-shielding area located between the second light-transmitting area and the third light-transmitting area. The color conversion substrate further includes a third color filter, a first light-shielding member, and a first wavelength conversion pattern. The third color filter is placed on one surface of the substrate portion, overlaps with the third light-transmitting area, and includes a colorant of a second color different from the first color. The first light-shielding member is placed between the second color filter and the third color filter and overlaps with the second light-shielding area. The first wavelength conversion pattern is placed on the third light-transmitting area.

3. The color conversion substrate according to claim 2, wherein, The width of the light-transmitting pattern in the first direction is greater than the width of the first wavelength conversion pattern in the first direction.

4. The color conversion substrate according to claim 2, further comprising: The barrier is placed in the second light-shielding area and arranged between the light-transmitting pattern and the first wavelength conversion pattern.

5. The color conversion substrate according to claim 4, wherein, The thickness of the light-shielding pattern is greater than the thickness of the first light-shielding member and less than the thickness of the barrier.

6. The color conversion substrate according to claim 5, wherein, The light-blocking pattern is in contact with the first color filter and the second color filter.

7. The color conversion substrate according to claim 5, wherein, The light-shielding pattern is arranged to be spaced apart from one of the surfaces of the base portion, and At least a portion of the side surface of the light-blocking pattern is in contact with the light-transmitting pattern.

8. The color conversion substrate according to claim 4, wherein, The barrier extends in a second direction that intersects the first direction.

9. The color conversion substrate according to claim 8, further comprising: A fifth light-transmitting area, spaced apart from the first light-transmitting area in the second direction. The light-blocking pattern is arranged between the first light-transmitting area and the fifth light-transmitting area.

10. The color conversion substrate according to claim 2, wherein, The substrate portion further defines a fourth light-transmitting region spaced apart from the third light-transmitting region in the first direction, and a third light-shielding region located between the third light-transmitting region and the fourth light-transmitting region. The color conversion substrate further includes a fourth color filter, a second light-shielding member, and a second wavelength conversion pattern. The fourth color filter is placed on one surface of the substrate portion, overlaps with the fourth light-transmitting area, and includes a colorant of a third color different from the first color and the second color. The second light-shielding member is placed between the third color filter and the fourth color filter and overlaps with the third light-shielding area. The second wavelength conversion pattern is placed on the fourth light-transmitting area.

11. The color conversion substrate according to claim 10, wherein, One side of the second color filter is in contact with the light-blocking pattern. The other side of the second color filter contacts the first light-shielding member. One side of the third color filter contacts the first light-shielding member, and The other side of the third color filter is in contact with the second light-shielding member.

12. The color conversion substrate according to claim 11, wherein, At least a portion of one side of the third color filter is placed within the second light-shielding area, and At least a portion of the other side of the third color filter is placed in the third light-shielding area.

13. The color conversion substrate according to claim 10, further comprising: A barrier placed in the third light-shielding area and arranged between the first wavelength conversion pattern and the second wavelength conversion pattern.

14. The color conversion substrate according to claim 10, wherein, The first color filter and the second color filter allow light of the first color to pass through, while blocking the transmission of light of the second color and the third color. The third color filter allows light of the second color to pass through, and blocks the transmission of both the third color and the first color of light. The fourth color filter allows light of the third color to pass through, while blocking the transmission of light of the first and second colors.

15. The color conversion substrate according to claim 1, wherein, The substrate portion further defines a third light-transmitting region spaced apart from the first light-transmitting region in the first direction, a fourth light-transmitting region spaced apart from the third light-transmitting region in a second direction intersecting the first direction, and a sixth light-transmitting region spaced apart from the third light-transmitting region in the first direction. The color conversion substrate further includes a third color filter, a fourth color filter, and a sixth color filter. The third color filter is placed on one surface of the substrate portion, overlaps with the third light-transmitting area, and includes a colorant of a second color different from the first color. The fourth color filter is placed on one surface of the substrate portion, overlaps with the fourth light-transmitting area, and includes a colorant of a third color different from both the first and second colors. The sixth color filter is placed on one surface of the substrate portion, overlaps with the sixth light-transmitting area, and includes a colorant of the second color. The light-blocking pattern is further arranged between the third light-transmitting area and the sixth light-transmitting area.

16. The color conversion substrate according to claim 15, wherein, The substrate portion further defines a seventh light-transmitting region that is spaced apart from the fourth light-transmitting region in the second direction. The color conversion substrate further includes a seventh color filter, which is placed on one surface of the substrate portion, overlaps with the seventh light-transmitting area, and includes a colorant of the third color. The light-blocking pattern is further arranged between the fourth light-transmitting area and the seventh light-transmitting area.

17. A color conversion substrate, comprising: The base portion defines a first light-transmitting area, a second light-transmitting area spaced apart from the first light-transmitting area in a first direction, and a third light-transmitting area spaced apart from the first light-transmitting area and the second light-transmitting area in a second direction intersecting the first direction; A first color filter is placed on a surface of the base portion, overlaps with the first light-transmitting area, and includes a colorant of the first color; The second color filter is placed on one surface of the base portion, overlaps with the second light-transmitting area, and includes a colorant of the second color; as well as A third color filter is placed on one surface of the base portion, overlaps with the third light-transmitting area, and includes a colorant of a third color. The substrate portion further defines a fourth light-transmitting region spaced apart from the first light-transmitting region in the second direction, and The color conversion substrate further includes a fourth color filter and a light-blocking pattern. The fourth color filter is placed on one surface of the substrate portion, overlaps with the fourth light-transmitting area, and includes a colorant of the first color. The light-blocking pattern is placed between the first light-transmitting area and the fourth light-transmitting area.

18. The color conversion substrate according to claim 17, wherein, The substrate portion further defines a fifth light-transmitting region spaced apart from the second light-transmitting region in the first direction. The color conversion substrate further includes a fifth color filter, which is placed on one surface of the substrate portion, overlaps with the fifth light-transmitting area, and includes a colorant of the second color. The light-blocking pattern is further placed between the second light-transmitting area and the fifth light-transmitting area.

19. The color conversion substrate according to claim 17, further comprising: A barrier arranged to surround the first light-transmitting area and the fourth light-transmitting area; as well as A first wavelength conversion pattern is arranged on the first color filter, the fourth color filter, and the light-blocking pattern in the area surrounded by the barrier.

20. The color conversion substrate according to claim 19, wherein, The substrate portion further defines a sixth light-transmitting region spaced apart from the third light-transmitting region in the second direction. The barrier is further arranged to surround the third light-transmitting area and the sixth light-transmitting area. The light-blocking pattern is further placed between the third light-transmitting area and the sixth light-transmitting area, and The color conversion substrate further includes a sixth color filter and a light-transmitting pattern. The sixth color filter is placed on one surface of the substrate portion, overlaps with the sixth light-transmitting area, and includes a colorant of the third color. The light-transmitting pattern is arranged on the third color filter, the sixth color filter, and the light-blocking pattern in the area surrounded by the barrier.

21. A display device, comprising: A display substrate, wherein a first emission region, a second emission region spaced apart from the first emission region in a first direction, and a non-emission region is located between the first emission region and the second emission region are defined in the display substrate; as well as A color conversion substrate disposed on the display substrate, The color conversion substrate includes: The base portion defines a first light-transmitting area, a second light-transmitting area spaced apart from the first light-transmitting area in the first direction, and a first light-blocking area located between the first light-transmitting area and the second light-transmitting area. A first color filter is placed on one surface of the base portion and overlaps with the first light-transmitting area. The second color filter is placed on one surface of the base portion and overlaps with the second light-transmitting area. A light-shielding pattern, overlapping the first light-shielding area and placed on one surface of the base portion, and A light-transmitting pattern is placed on the first color filter, the second color filter, and the light-blocking pattern, and The first color filter and the second color filter include a colorant of the first color.

22. The display device according to claim 21, wherein, The first light-transmitting area overlaps with the first emitting area. The second light-transmitting area overlaps with the second emitting area. The first emission region and the second emission region emit light of the first color, and The emitted light is incident on the light-transmitting pattern.

23. The display device according to claim 22, wherein, At least some of the emitted light emitted from the first emitting region and incident on the light-transmitting pattern is output from the first light-transmitting region, and At least some of the emitted light emitted from the first emitting area and incident on the light-transmitting pattern is blocked by the light-blocking pattern.

24. The display device according to claim 21, wherein, A third emission region, spaced apart from the second emission region in the first direction, is further defined in the display substrate, and The color conversion substrate defines a third light-transmitting area spaced apart from the second light-transmitting area in the first direction and a second light-shielding area placed between the second light-transmitting area and the third light-transmitting area. The color conversion substrate further includes a third color filter, a first light-shielding member, and a first wavelength conversion pattern. The third color filter is placed on one surface of the substrate portion, overlaps with the third light-transmitting area, and includes a colorant of a second color different from the first color. The first light-shielding member is placed between the second color filter and the third color filter and overlaps with the second light-shielding area. The first wavelength conversion pattern is placed on the third light-transmitting area.

25. The display device according to claim 24, further comprising: The barrier is placed in the second light-shielding area and arranged between the light-transmitting pattern and the first wavelength conversion pattern.

26. The display device according to claim 25, wherein, The third emission region emits light of the first color, and The emitted light is incident on the first wavelength conversion pattern.

Images