Display panel and color film substrate

Abstract

A display panel is disclosed. The display panel has a plurality of overlapping pixel cells. At least one pixel unit includes a first sub-pixel, a second sub-pixel, and a third sub-pixel that display different colors. The display panel includes a first base substrate, a light-emitting element layer, a color filter layer, a color conversion layer, a touch function layer, and a light adjustment layer. The light-emitting element layer is located on one side of the first base substrate. The light-emitting element layer includes a first light-emitting element, a second light-emitting element, and a third light-emitting element. The color filter layer is located on a side of the light-emitting element layer away from the first base substrate, and includes at least a first light-shielding pattern, a first color filter, and a second color filter. The color conversion layer is located between the light-emitting element layer and the color filter layer. The color conversion layer includes a first color conversion pattern, a second color conversion pattern, and a light-transmitting pattern. The touch function layer is located on a side of the color conversion layer away from the first base substrate.

Description

[Technical Field]

[0001] This disclosure relates to the technology of displays, and more particularly to display panels and color film substrates. [Background technology]

[0002] With the continuous development of electronic products, display panels equipped with display functions are widely applied in people's lives and work, providing convenience to people. [Overview of the project] [Means for solving the problem]

[0003] In one embodiment, a display panel is provided. The display panel has multiple overlapping pixels unit It holds. each Pixel units display different colors It is configured to It includes a first subpixel, a second subpixel, and a third subpixel. The display panel comprises a first base substrate, a light-emitting element layer, a color filter layer, a color conversion layer, a touch function layer, and a light adjustment layer.

[0004] The light-emitting layer is located on one side of the first base substrate. element The layer includes a first light-emitting element, a second light-emitting element, and a third light-emitting element. The first light-emitting element is located within a first subpixel, the second light-emitting element is located within a second subpixel, and the third light-emitting element is located within a third subpixel.

[0005] The color filter layer is located on the side of the light-emitting element layer away from the first base substrate and includes at least a first light-shielding pattern, a first color filter, and a second color filter. The first light-shielding pattern defines a plurality of light-transmitting regions. The light-transmitting regions include a first light-transmitting region corresponding to the first subpixel, a second light-transmitting region corresponding to the second subpixel, and a third light-transmitting region corresponding to the third subpixel.

[0006] The color conversion layer is located between the light-emitting element layer and the color filter layer. The color conversion layer includes a first color conversion pattern, a second color conversion pattern, and a light transmission pattern. The first color conversion pattern is located within the first subpixel, the second color conversion pattern is located within the second subpixel, and the light transmission pattern is located within the third subpixel.

[0007] The touch function layer is located on the side of the color conversion layer that is away from the first base substrate.

[0008] The light-modulating layer is located on the side of the touch-functional layer away from the first base substrate, the orthographic projection of the light-modulating layer onto the first base substrate overlaps with at least the third light-transmitting region, the light-modulating layer comprises first particles and second particles, the first particles comprising dye molecules, and the second particles having a hollow structure.

[0009] In some embodiments, the orthographic projection of the light-modulating layer on the first base substrate overlaps only with the third light-transmitting region.

[0010] In some embodiments, the display panel further comprises a transparent resin filling pattern disposed in the same layer as the light-adjusting layer, wherein the transparent resin filling pattern overlaps the first light-transmitting region and the second light-transmitting region.

[0011] In some embodiments, the light-modulating layer has a single-layer structure, and the light-modulating layer comprises a mixture of the first particles and the second particles.

[0012] In some embodiments, the light-modulating layer includes a stacked first light-modulating layer and a second light-modulating layer. The first light-modulating layer includes the first particles, and the second light-modulating layer includes the second particles.

[0013] In some embodiments, the first light-adjusting layer is located on the side of the touch function layer away from the first base substrate, and the second light-adjusting layer is located between the first light-adjusting layer and the touch function layer.

[0014] In some embodiments, the first light adjustment layer is located on a side of the touch functional layer away from the first base substrate, and the second light adjustment layer is located on a side of the first light adjustment layer away from the touch functional layer.

[0015] In some embodiments, the orthographic projection of the first light adjustment layer on the first base substrate overlaps only with the third light transmission region.

[0016] In some embodiments, the orthographic projection of the second light adjustment layer on the first base substrate overlaps with each of the first light transmission region, the second light transmission region, and the third light transmission region.

[0017] In some embodiments, the second light adjustment layer has a continuous film structure.

[0018] In some embodiments, the light adjustment layer further includes a second light blocking pattern. The second light blocking pattern is located in a light blocking region that does not overlap with the first light transmission region, the second light transmission region, and the third light transmission region.

[0019] In some embodiments, the thickness of the second light blocking pattern along a direction perpendicular to the display panel is less than or equal to the thickness of the first light adjustment layer along a direction perpendicular to the display panel.

[0020] In some embodiments, the second light adjustment layer includes a plurality of first patterns, second patterns, and third patterns separated from each other. The first pattern is located in the first light transmission region, the second pattern is located in the second light transmission region, and the third pattern is located in the third light transmission region. The thickness of the second light blocking pattern along a direction perpendicular to the display panel is approximately equal to the thickness of the first pattern and / or the thickness of the second pattern along a direction perpendicular to the display panel, and is approximately equal to the sum of the thickness of the third pattern and the thickness of the first light adjustment layer along a direction perpendicular to the display panel.

[0021] In some embodiments, the light adjustment layer and the color filter layer are provided in the same layer.

[0022] In some embodiments, the color of the dye molecule is the same as the color of the third sub-pixel.

[0023] In some embodiments, the second pellet The child is spherical and includes a core component filled with air and a shell component surrounding the core component.

[0024] In some embodiments, the second particle has an average diameter of about 10 nm to about 200 nm.

[0025] In some embodiments, the material of the shell component is an organic substance and includes at least one of an acrylic polymer, a polyimide, a urethane polymer, a styrene polymer, a siloxane polymer, and an epoxy polymer.

[0026] In some embodiments, the material of the shell component is an inorganic substance and includes at least one of SiO2, MgF2, TiO2, ZrO2, Al2O3, In2O3, ZnO, SnO2, Sb2O3, Fe3O4, and ITO.

[0027] In some embodiments, the first color conversion pattern and the second color conversion pattern include a quantum dot material and scattering particles.

[0028] In some embodiments, the quantum dot material is a cadmium-free material.

[0029] In some embodiments, the core material of the quantum dot material is InP and the shell material is a laminate of ZnSe and ZnS (ZnSe / ZnS), or the core material of the quantum dot material is ZnTeSe and the shell material is a laminate of ZnSe and ZnS (ZnSe / ZnS).

[0030] In some embodiments, the thickness of the first color conversion pattern and the thickness of the second color conversion pattern are 5 μm to 30 μm.

[0031] In some embodiments, the touch functional layer has a metal mesh structure.

[0032] In some embodiments, the display panel further comprises a light extraction layer and a packaging layer. The light extraction layer is located on the side of the light-emitting element layer away from the first base substrate. The packaging layer is located on the side of the light extraction layer away from the first base substrate.

[0033] In some embodiments, the display panel further comprises a second base substrate, the second base substrate located on the side of the light-adjusting layer away from the first base substrate.

[0034] In some embodiments, the second base substrate is in direct contact with the light-adjusting layer.

[0035] In some embodiments, the display panel further comprises a first cover layer and a second cover layer located on both sides of the color conversion layer.

[0036] In another embodiment, a color film substrate is provided. The color film substrate comprises a base substrate, a color filter layer, a color conversion layer, a touch function layer, and a light adjustment layer.

[0037] The color filter layer is located on the base substrate and includes at least a first light-shielding pattern, a first color filter, and a second color filter. The first light-shielding pattern defines a plurality of light-transmitting regions. The light-transmitting regions include a first light-transmitting region for transmitting light of a first color, a second light-transmitting region for transmitting light of a second color, and a third light-transmitting region for transmitting light of a third color.

[0038] The color conversion layer is located on the side away from the substrate of the color filter layer and includes a first color conversion pattern, a second color conversion pattern, and a light transmission pattern.

[0039] The touch function layer is located between the color conversion layer and the base substrate.

[0040] The light-modulating layer is located between the touch-functional layer and the base substrate. The orthographic projection of the light-modulating layer onto the base substrate overlaps with at least the third light-transmitting region. The light-modulating layer includes first particles and second particles. The first particles contain dye molecules. The second particles have a hollow structure.

[0041] In some embodiments, the light-modulating layer includes a dye molecular film having the dye molecules and a hollow particle film having the hollow particles. The dye molecular film is located on the side of the hollow particle film closer to the first base substrate, or the hollow particle film is located on the side of the dye molecular film closer to the first base substrate.

[0042] In some embodiments, the orthographic projection of the light-modulating layer onto the base substrate overlaps only with the third light-transmitting region.

[0043] In some embodiments, the color film substrate further comprises a transparent resin filling pattern provided in the same layer as the light-adjusting layer. The transparent resin filling pattern overlaps the first light-transmitting region and the second light-transmitting region.

[0044] In some embodiments, the light-modulating layer has a single-layer structure, and the light-modulating layer comprises a mixture of the first particles and the second particles.

[0045] In some embodiments, the light-modulating layer includes a stacked first light-modulating layer and a second light-modulating layer. The first light-modulating layer includes the first particles, and the second light-modulating layer includes the second particles.

[0046] In some embodiments, the second light-adjusting layer is located between the first light-adjusting layer and the touch-function layer.

[0047] In some embodiments, the first light-adjusting layer is located between the second light-adjusting layer and the touch-functional layer.

[0048] In some embodiments, the orthographic projection of the first light-modulating layer on the base substrate overlaps only with the third light-transmitting region.

[0049] In some embodiments, the orthographic projection of the second light-modulating layer on the base substrate overlaps with the first light-transmitting region, the second light-transmitting region, and the third light-transmitting region, respectively.

[0050] In some embodiments, the second light-modulating layer has a continuous film structure.

[0051] In some embodiments, the light-modulating layer further includes the second light-shielding pattern, which is located in a light-blocking region that does not overlap with the first light-transmitting region, the second light-transmitting region, and the third light-transmitting region.

[0052] In some embodiments, the thickness of the second light-shielding pattern along the direction perpendicular to the color film substrate is less than or equal to the thickness of the first light-adjusting layer along the direction perpendicular to the color film substrate.

[0053] In some embodiments, the second light-modulating layer includes a plurality of first, second, and third patterns that are separated from each other. The first pattern is located in the first light-transmitting region, the second pattern is located in the second light-transmitting region, and the third pattern is located in the third light-transmitting region. The thickness of the second light-shielding pattern along the direction perpendicular to the color film substrate is approximately equal to the thickness of the first pattern and / or the second pattern along the direction perpendicular to the color film substrate, and is approximately equal to the sum of the thicknesses of the third pattern and the first light-modulating layer along the direction perpendicular to the color film substrate.

[0054] In some embodiments, the light adjustment layer and the color filter layer are provided in the same layer. [Brief explanation of the drawing]

[0055] To better illustrate the inventions in this disclosure, the drawings used in some embodiments of this disclosure are briefly described below. Clearly, the drawings described below are only those for some embodiments of this disclosure, and those skilled in the art can derive other drawings based on these. Furthermore, the drawings in the following description can be considered schematic diagrams, but are not limited to the actual dimensions of the products, the actual processes of the methods, and the actual timing of the signals in the embodiments of this disclosure. [Figure 1] This is a perspective view of a display panel according to several embodiments. [Figure 2] This is a cross-sectional view along line a-a' in Figure 1. [Figure 3] This is a plan view of a light-emitting substrate according to several embodiments. [Figure 4] This is a plan view of a color conversion substrate according to several embodiments. [Figure 5] This diagram compares the luminance attenuation of blue light due to the microcavity effect with the luminance attenuation of light emitted from quantum dot films at different angles. [Figure 6] This is a cross-sectional view of a display panel according to several embodiments. [Figure 7] This is a structural diagram of a light-emitting element according to several embodiments. [Figure 8] This is another structural diagram of a light-emitting element according to several embodiments. [Figure 9] This is another structural diagram of a light-emitting element according to several embodiments. [Figure 10A] This is a diagram illustrating the configuration of the first color conversion pattern according to several embodiments. [Figure 10B] This is a diagram illustrating the configuration of a second color conversion pattern according to several embodiments. [Figure 11] This is a structural diagram of a light transmission pattern according to several embodiments. [Figure 12] This is a top view of a touch function layer according to several embodiments. [Figure 13] This is another top view of the touch function layer according to some embodiments. [Figure 14] This is a cross-sectional view of a color conversion substrate according to several embodiments. [Figure 15] This is a structural diagram of a photoconversion layer according to several embodiments. [Figure 16] This is another cross-sectional view of a display panel according to some embodiments. [Figure 17] This is another cross-sectional view of a display panel according to some embodiments. [Figure 18] This is another cross-sectional view of a display panel according to some embodiments. [Figure 19] This is another cross-sectional view of a display panel according to some embodiments. [Figure 20] This is another cross-sectional view of a display panel according to some embodiments. [Figure 21] This is another cross-sectional view of a display panel according to some embodiments. [Figure 22] This is another cross-sectional view of a display panel according to some embodiments. [Figure 23] This is another cross-sectional view of a display panel according to some embodiments. [Figure 24] This is another cross-sectional view of a display panel according to some embodiments. [Figure 25] This is another cross-sectional view of a display panel according to some embodiments. [Figure 26] This is another cross-sectional view of a display panel according to some embodiments. [Figure 27] This is another cross-sectional view of a display panel according to some embodiments. [Figure 28] This is another cross-sectional view of a display panel according to some embodiments. [Figure 29] This is a comparison diagram of light extraction efficiency from the front at different refractive indices. [Figure 30] This is a comparison chart of the light conversion rates of quantum dots for blue light at different wavelengths. [Modes for carrying out the invention]

[0056] Hereinafter, several embodiments of this disclosure will be clearly and completely described with reference to the drawings. Of course, the embodiments described herein are only a selection of, and not all, embodiments of this disclosure. All other embodiments that a person skilled in the art could conceive of based on the embodiments of this disclosure are included within the scope of this disclosure.

[0057] Unless otherwise indicated in the context, the term “comprise” and other forms, such as the third-person singular “comprises” and the present participle “comprising,” should be interpreted in an open, comprehensive sense, i.e., “including, but not limited to.” In the description of the specification, terms such as “one embodiment,” “some embodiments,” “exemplary embodiments,” “example,” “specific example,” or “some examples” are intended to indicate that certain features, structures, materials, or properties related to this embodiment or its examples are included in at least one embodiment or example of the present disclosure. The abstract expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, any specific features, structures, materials, or properties described may be included in any one or more embodiments or examples in any suitable manner.

[0058] In the following, the terms “first” and “second” are merely for illustrative purposes and should not be understood as indicating or implying relative importance or the quantity of the indicated technical features. Accordingly, features defined as “first” and “second” may explicitly or implicitly include one or more such features. In the description of the embodiments of this disclosure, unless otherwise specified, “multiple” means two or more.

[0059] In describing some embodiments, the terms “electrical connection,” “connection,” and related expressions may be used. For example, in describing some embodiments, the term “electrical connection” may be used to indicate that two or more components have direct physical or electrical contact with one another.

[0060] "A and / or B" includes three combinations: a only, B only, and a combination of A and B.

[0061] In this specification, the use of “arranged to…” means open and inclusive language and does not exclude devices applied or arranged to perform additional tasks or steps.

[0062] Furthermore, the use of the term “based on” implies an open and inclusive language, meaning that a process, step, calculation, or other action “based on” one or more conditions or values ​​may actually be based on additional conditions or values ​​beyond those conditions.

[0063] As used herein, “approximate” or “about” includes the stated value and the mean value within an acceptable range of deviation of a particular value, where the acceptable range of deviation is determined taking into account the errors associated with the measurement and the measurement of a particular quantity (i.e., limitations of the measurement system) as considered by those skilled in the art.

[0064] This specification describes exemplary embodiments with reference to cross-sectional and / or plan views, which are idealized, illustrative drawings. In the drawings, the thickness of layers and regions is enlarged for clarity. Therefore, variations in shape from the drawings due to manufacturing techniques and / or tolerances are assumed. Accordingly, the exemplary embodiments should be interpreted as including shape deviations due to manufacturing, for example, and not being limited to the shapes of the regions shown herein. For example, an etching region shown as a rectangular shape typically has curved characteristics. Therefore, the regions shown in the drawings are essentially schematic, and their shapes are not intended to represent the actual shapes of regions in the apparatus, nor are they intended to limit the scope of the exemplary embodiments.

[0065] Figure 1 is a perspective view of a display panel DP according to several embodiments. Figure 2 is a schematic cross-sectional view of the display panel DP along line a-a' in the embodiment shown in Figure 1. As shown in Figures 1 and 2, the display panel DP comprises a light-emitting substrate LS and a color conversion substrate CS. The display panel DP includes a display area DA for displaying an image and a non-display area NDA for not displaying an image. The non-display area NDA is located outside the display area DA. In some examples, the non-display area NDA may surround the display area DA or be located outside the display area DA in at least one direction. The display panel DP comprises a light-emitting substrate LS and a color conversion substrate CS and The space between The system further includes a sealing layer SL for sealing the substrate and a filling layer FL filled between the light-emitting substrate LS and the color conversion substrate CS.

[0066] The display panel DP described above may be rectangular, circular, elliptical, rhombus, trapezoidal, square, or any other shape in the plan view that suits the display requirements.

[0067] The above-mentioned display panel DP may be applied to a variety of electronic devices, including small and medium-sized electronic devices such as tablets, smartphones, head-mounted displays, car navigation units, cameras, central information displays (CIDs) provided in vehicles, smartwatches or other wearable devices, personal digital assistants (PDAs), portable multimedia players (PMPs) and game consoles, as well as consumer electronics including televisions, external signs, monitors, displays, personal computers, and laptop computers. Panel DP Only application examples may be shown. Furthermore, those skilled in the art will be able to recognize that the display panel DP can be applied to other devices without departing from the spirit and scope of this disclosure.

[0068] The color conversion substrate CS may be positioned opposite the light-emitting substrate LS. The color conversion substrate CS may include a color conversion structure for converting the color of incident light. structure This may include at least one of a color filter and a wavelength conversion pattern.

[0069] The encapsulation layer SL is located between the light-emitting substrate LS and the color conversion substrate CS, and may also be located within the non-display area NDA. The encapsulation layer SL may also be positioned along the edges of the light-emitting substrate LS and the color conversion substrate CS within the non-display area NDA, thereby allowing the encapsulation layer SL to ,table The sealing layer SL surrounds or is located within the outer perimeter of the display area DA. The sealing layer SL can be formed from an organic material such as epoxy resin, but is not limited to that.

[0070] The packed layer FL is surrounded by the sealing layer SL between the light-emitting substrate LS and the color conversion substrate CS. The aforementioned It may be located in space and fill it. The filling layer FL may be formed of a light-transmitting material. The filling layer FL may be formed of an organic material such as a silicon-based organic material or an epoxy-based organic material, but is not limited to this. In some embodiments, the filling layer FL can be omitted.

[0071] As shown in Figure 1, the display panel DP has multiple overlapping pixel units PU. At least one pixel unit PU includes a first subpixel PX1, a second subpixel PX2, and a third subpixel PX3 that display different colors. Each subpixel consists of a structure located on one side of the light-emitting substrate LS and a structure located on one side of the color conversion substrate CS.

[0072] Figure 3 shows the light-emitting substrate in the display area of ​​the display panel shown in Figures 1 and 2. some A plan view is shown. As shown in Figure 3, the light-emitting regions LA1, LA2, LA3, LA4, LA5, LA6 and the non-light-emitting region NLA may be limited to the display region DA of the light-emitting substrate LS. The light emitted from the light-emitting regions LA1, LA2, LA3, LA4, LA5, LA6 to the outside of the light-emitting substrate LS may be emitted light having a specific center wavelength. For example, the emitted light may be blue light and have a peak wavelength in the range of approximately 440 nm to approximately 480 nm.

[0073] The light-emitting substrate LS is located in row n of the display area DA, R n The light-emitting regions LA1, LA2, and LA3 located within, and the adjacent (n+1)th row R n+1 It includes light-emitting regions LA4, LA5, and LA6 provided inside. In the light-emitting substrate LS, the nth row R n In this configuration, the first light-emitting region LA1, the second light-emitting region LA2, and the third light-emitting region LA3 may be sequentially overlapping on the first direction DR1, and the (n+1)th row R n+1 In this configuration, the fourth light-emitting region LA4, the fifth light-emitting region LA5, and the sixth light-emitting region LA6 may be sequentially overlapping on the first direction DR1.

[0074] One overlapping light-emitting region unit corresponds to one overlapping pixel unit. Row n, R n In this configuration, the first light-emitting region LA1 of the first subpixel PX1, the second light-emitting region LA2 of the second subpixel PX2, and the third light-emitting region LA3 of the third subpixel PX3 are sequentially provided on the first direction DR1.

[0075] In one overlapping light-emitting region unit, the nth row R nIn this configuration, along the first direction DR1, the first light-emitting region LA1 has a first width WL1, the second light-emitting region LA2 has a second width WL2, and the third light-emitting region LA3 has a third width WL3. Here, the first width WL1, the second width WL2, and the third width WL3 may be the same or different from each other. The disclosure is not limited thereto.

[0076] In an exemplary embodiment, the first width WL1 of the first light-emitting region LA1 may be larger than the second width WL2 of the second light-emitting region LA2 and the third width WL3 of the third light-emitting region LA3. Alternatively, for example, the second width WL2 of the second light-emitting region LA2 may be larger than the third width WL3 of the third light-emitting region LA3. Therefore, the area of ​​the first light-emitting region LA1 may be larger than the area of ​​the second light-emitting region LA2 and the area of ​​the third light-emitting region LA3, and the area of ​​the second light-emitting region LA2 may be larger than the area of ​​the third light-emitting region LA3.

[0077] In exemplary embodiments, the first width WL1 of the first light-emitting region LA1, the second width WL2 of the second light-emitting region LA2, and the third width WL3 of the third light-emitting region LA3 may be approximately the same. Therefore, the areas of the first light-emitting region LA1, the second light-emitting region LA2, and the third light-emitting region LA3 may be approximately the same.

[0078] Similarly, in one overlapping light-emitting region unit, the adjacent (n+1)th row R n+1 In this case, the fourth light-emitting region LA4, the fifth light-emitting region LA5, and the sixth light-emitting region LA6 are in row n R n The first light-emitting region LA1, the second light-emitting region LA2, and the third light-emitting region LA3 may have substantially the same structure.

[0079] Figure 4 shows the color conversion substrate in the display area of ​​the display panel shown in Figures 1 and 2. someA plan view is shown. As shown in FIG. 4, the light transmission regions TA1, TA2, TA3, TA4, TA5, TA6 and the light blocking region BA may be defined in the display region DA of the color conversion substrate CS. In the light transmission regions TA1, TA2, TA3, TA4, TA5, TA6, the light emitted from the light emitting substrate LS may pass through the color conversion substrate CS and be supplied to the outside of the display panel DP. In the light blocking region BA, the light emitted from the display substrate 10 cannot pass through to the outside of the display panel DP.

[0080] The color conversion substrate CS may include light transmission regions TA1, TA2, TA3 provided in the nth row R in the display region DA n and light transmission regions TA4, TA5, TA6 provided in the adjacent (n + 1)th row R n+1 . In the color conversion substrate CS, in the nth row R n , the first light transmission region TA1, the second light transmission region TA2, and the third light transmission region TA3 may be sequentially and overlappingly provided in the first direction DR1. Also, in the (n + 1)th row R n+1 , the fourth light transmission region TA4, the fifth light transmission region TA5, and the sixth light transmission region TA6 may be sequentially and overlappingly provided in the first direction DR1.

[0081] The first light transmission region TA1 corresponds to the first light emitting region LA1 and may overlap with the first light emitting region LA1 or face the first light emitting region to form the optical channel of the first sub-pixel PX1. Similarly, the second light transmission region TA2 corresponds to the second light emitting region LA2 and may overlap with the second light emitting region LA2 or face the second light emitting region to form the optical channel of the second sub-pixel PX2. Also, the third light transmission region TA3 corresponds to the third light emitting region LA3 and may overlap with the third light emitting region LA3 or face the third light emitting region to form the optical channel of the third sub-pixel PX3. Similarly, the fourth light transmission region TA4, the fifth light transmission region TA5, and the sixth light transmission region TA6 may overlap with the fourth light emitting region LA4, the fifth light emitting region LA5, and the sixth light emitting region LA6, respectively, or may face the fourth light emitting region LA4, the fifth light emitting region LA5, and the sixth light emitting region LA6, respectively.

[0082] The light emitted from the light-emitting substrate LS may pass through a first light-transmitting region TA1, a second light-transmitting region TA2, and a third light-transmitting region TA3 before being supplied to the outside of the display panel DP. The light emitted from the first light-transmitting region TA1 to the outside of the display panel DP may be called the first emitted light. The light emitted from the second light-transmitting region TA2 to the outside of the display panel DP may be called the second emitted light. The light emitted from the third light-transmitting region TA3 to the outside of the display panel DP may be called the third emitted light. The first emitted light may be light of a first color, the second emitted light may be light of a second color different from the first color, and the third emitted light may be light of a third color different from the first and second colors. As described above, the first color light may be red light having a peak wavelength in the range of approximately 610 nm to approximately 650 nm. The second color light may be green light having a peak wavelength in the range of approximately 510 nm to approximately 550 nm. The third color of light may be blue light having a peak wavelength in the range of approximately 440 nm to approximately 480 nm.

[0083] In one overlapping light-transmitting region unit, the nth row R n In this configuration, along the first direction DR1, the first light-transmitting region TA1 may have a first width WT1, the second light-transmitting region TA2 may have a second width WT2, and the third light-transmitting region TA3 may have a third width WT3. Here, the first width WT1 of the first light-transmitting region TA1, the second width WT2 of the second light-transmitting region TA2, and the third width WT3 of the third light-transmitting region TA3 may be the same or different from each other. The disclosure is not limited thereto.

[0084] In the exemplary embodiment, the first width WT1 of the first light-transmitting region TA1 may be larger than the second width WT2 of the second light-transmitting region TA2 and the third width WT3 of the third light-transmitting region TA3. Alternatively, for example, the second width WT2 of the second light-transmitting region TA2 may be larger than the third width WT3 of the third light-transmitting region TA3. Therefore, the area of ​​the first light-transmitting region TA1 may be larger than the area of ​​the second light-transmitting region TA2 and the area of ​​the third light-transmitting region TA3, and the area of ​​the second light-transmitting region TA2 may be larger than the area of ​​the third light-transmitting region TA3. In the exemplary embodiment, the first width WT1 of the first light-transmitting region TA1, the second width WT2 of the second light-transmitting region TA2, and the third width WT3 of the third light-transmitting region TA3 may be substantially the same. Therefore, the areas of the first light-transmitting region TA1, the second light-transmitting region TA2, and the third light-transmitting region TA3 may be substantially the same.

[0085] In the color conversion substrate CS, the light blocking region BA may be located around the light transmitting regions TA1, TA2, TA3, TA4, TA5, and TA6 within the display region DA.

[0086] As shown in Figure 5, the inventors of this disclosure have discovered that the brightness of blue light emitted from a blue organic light-emitting diode (OLED) decreases significantly with changes in angle due to the microcavity effect, while the brightness of red quantum dot films and green quantum dot films changes slightly with changes in angle because they have the characteristic of emitting light at all angles and do not have the microcavity effect. Therefore, as the viewing angle changes, the brightness of blue light decreases rapidly, and the brightness of red and green light hardly changes, leading to severe polarization of white light at large viewing angles.

[0087] Figure 6 is a schematic cross-sectional view of a display panel DP along the line A1-A1' in Figures 3 and 4 relating to an embodiment of the present disclosure. In some embodiments of the present disclosure, a display panel DP is provided. The display panel DP includes a plurality of light-emitting elements LDs. The light-emitting elements LDs include organic light-emitting diodes (OLEDs) and quantum dot light-emitting diodes (QLEDs). or Micro / Micro Light Emitting Diodes (MLED) )in It may be present. The embodiments of this disclosure are described in an example where the light-emitting element LD is an OLED. However, the embodiments of this disclosure are not limited to QD-OLED display panels. OLED light-emitting elements have advantages such as small thickness, fast response, low drive voltage, wide operating temperature range, self-emissive and low power consumption, and the ability to manufacture flexible devices.

[0088] As shown in Figure 6, the display panel DP may include a light-emitting substrate LS, a color conversion substrate CS, and a packing layer FL filled between the light-emitting substrate LS and the color conversion substrate CS.

[0089] In some embodiments, the light-emitting substrate LS may include a first substrate SUB1 and switching elements T1, T2, and T3 provided on the first substrate SUB1.

[0090] The light-emitting substrate LS may include a first base substrate SUB1. The first base substrate SUB1 may be formed of a light-transmitting material. For example, the first base substrate SUB1 may be formed of inorganic glass, organic glass, a plastic substrate, or another organic material substrate. The first base substrate SUB1 may be rigid or flexible. The first base substrate SUB1 may further include a buffer layer or an insulating layer to provide a substrate surface with good performance.

[0091] The light-emitting substrate LS may include a plurality of switching elements disposed on a first base substrate SUB1. In one overlapping light-emitting region unit, the switching elements include a first switching element T1, a second switching element T2, and a third switching element T3. For example, the first switching element T1 may be located in a first light-emitting region LA1, the second switching element T2 in a second light-emitting region LA2, and the third switching element T3 in a third light-emitting region LA3. Alternatively, for example, at least one of the first switching element T1, the second switching element T2, and the third switching element T3 may be located in a non-light-emitting region NLA. At least one of the first switching element T1, the second switching element T2, and the third switching element T3 may be a thin-film transistor containing polysilicon or a thin-film transistor containing an oxide semiconductor. For example, if the switching element is a thin-film transistor containing an oxide semiconductor, the switching element may have a top-gate thin-film transistor structure. The switching elements may be connected to signal lines. The signal lines include, but are not limited to, gate lines, data lines, and power lines.

[0092] The light-emitting substrate LS includes an insulating layer INL, which may be located on a first switching element T1, a second switching element T2, and a third switching element T3. The insulating layer INL may have a planarized surface. The insulating layer INL may be formed from an organic layer. For example, the insulating layer INL may contain an acrylic resin, epoxy resin, imide resin, or ester resin. The insulating layer INL may have through holes that expose the electrodes of the first switching element T1, the second switching element T2, and the third switching element T3 in order to achieve electrical connections.

[0093] The light-emitting substrate LS may include a light-emitting layer LDL located on a first substrate SUB1. The light-emitting layer LDL is provided with a plurality of light-emitting elements LD connected to a switching element. In one overlapping light-emitting region unit, the light-emitting elements LD include a first light-emitting element LD1, a second light-emitting element LD2, and a third light-emitting element LD3. For example, the first light-emitting element LD1 may be located in the first light-emitting region LA1, the second switching element T2 may be located in the second light-emitting region LA2, and the third switching element T3 may be located in the third light-emitting region LA3.

[0094] The first light-emitting element LD1 includes a first anode AE1, the second light-emitting element LD2 includes a second anode AE2, and the third light-emitting element LD3 includes a third anode AE3. The first anode AE1, the second anode AE2, and the third anode AE3 may be provided on an insulating layer INL. The first anode AE1 may be located in the first light-emitting region LA1 and may be connected to the first switching element T1 via through holes in the insulating layer INL. The second anode AE2 may be located within the second light-emitting region LA2 and may be connected to the second switching element T2 via through holes in the insulating layer INL. The third anode AE3 may be located within the third light-emitting region LA3 and may be connected to the third switching element T3 via through holes in the insulating layer INL. At least one of the first anode AE1, the second anode AE2, and the third anode AE3 may extend at least a portion into the non-light-emitting region NLA. The widths or areas of the first anode AE1, the second anode AE2, and the third anode AE3 may be the same or different from each other. In some embodiments, the width of the first anode AE1 may be greater than the width of the second anode AE2, and the width of the second anode AE2 may be smaller than the width of the third anode AE3. In some other embodiments, the first anode AE1, the second anode AE2, and the third anode AE3 may be reflective electrodes. The first anode AE1, the second anode AE2, and the third anode AE3 may each have a single-layer or multi-layer structure and may be formed from a metal such as Ag, Mg, Al, Pt, Pd, Au, Ni, Nd, Ir, or Cr, or a mixture of these metals, or from a conductive metal oxide material such as ITO, IZO, or acid IGZO.

[0095] The light-emitting substrate LS may include a pixel-limited layer PDL located on a first anode AE1, a second anode AE2, and a third anode AE3. The pixel-limited layer PDL includes openings that expose the first anode AE1, the second anode AE2, and the third anode AE3, respectively, and may define a first light-emitting region LA1, a second light-emitting region LA2, a third light-emitting region LA3, and a non-light-emitting region NLA, respectively. The material of the pixel-limited layer PDL may be at least one of organic insulating materials such as acrylic resin, epoxy resin, phenolic resin, polyamide resin, polyimide resin, unsaturated polyester resin, polybenzene resin, polyphenylene sulfide resin, and benzocyclobutene (BCB).

[0096] As shown in Figures 7 to 9 of this disclosure, the first light-emitting element LD1, the second light-emitting element LD2, and the third light-emitting element LD3 each further include a light-emitting layer OL. The light-emitting layer OL may have the form of a continuous film formed in light-emitting regions LA1, LA2, LA3, LA4, LA5, LA6 and a non-light-emitting region NLA. The light-emitting layer OL may include a plurality of stacked layers. In some embodiments, the light-emitting layer OL may include a first hole transport layer HTL1 located on the first anode AE1, a first light-emitting material layer EML1 located on the first hole transport layer HTL1, and a first electron transport layer ETL1 located on the first light-emitting material layer EML1. The first light-emitting material layer EML1 may be a blue light-emitting layer. In some other embodiments, in addition to the first hole transport layer HTL1, the first light-emitting material layer EML1, and the first electron transport layer ETL1, the light-emitting layer OL may further include a first charge generation layer CGL1 located on the first light-emitting material layer EML1 and a second light-emitting material layer EML2 located on the first charge generation layer CGL1. The first electron transport layer ETL1 may be located on the second light-emitting material layer EML2. Similar to the first light-emitting material layer EML1, the second light-emitting material layer EML2 may emit blue light. The second light-emitting material layer EML2 may emit blue light having the same or a different peak wavelength as the first light-emitting material layer EML1. The first light-emitting material layer EML1 and the second light-emitting material layer EML2 may emit light of different colors. For example, the first light-emitting material layer EML1 may emit blue light and the second light-emitting material layer EML2 may emit green light. In other embodiments, the light-emitting layer OL may further include a second charge generation layer CGL2 located on the second light-emitting material layer EML2, and a first light-emitting material layer located on the second charge generation layer CGL2. The first electron transport layer ETL1 may be located on the second light-emitting material layer EML2. The third light-emitting material layer EML3 may emit blue light, similar to the first light-emitting material layer EML1 or the second light-emitting material layer EML2. The third light-emitting material layer EML3 may emit blue light having the same or a different peak wavelength as the first light-emitting material layer EML1 and the second light-emitting material layer EML2. The first light-emitting material layer EML1, the second light-emitting material layer EML2, and the third light-emitting material layer EML3 may emit light of different colors. The structure of two or more light-emitting material layers can improve the luminous efficiency and lifetime of the light-emitting element LD.Those skilled in the art can determine the number of light-emitting material layers as needed, and this disclosure is not limited thereto.

[0097] The first light-emitting element LD1, the second light-emitting element LD2, and the third light-emitting element LD3 include a common cathode CE. The cathode CE may be located on the light-emitting layer OL. The cathode CE may have semi-transparent or transmissive properties. In some embodiments, the cathode CE may include Ag, Mg, Cu, Al, Pt, Pd, Au, Ni, Nd, Ir, Cr, Li, Ca, LiF / Ca, LiF / Al, Mo, or Ti, or compounds or mixtures thereof, such as a mixture of Ag and Mg. In other embodiments, the cathode CE may include a transparent conductive oxide (TCO). For example, the cathode CE may be tungsten oxide (W x O y ), may include titanium dioxide (TiO2), indium tin oxide (ITO), indium zinc oxide (IZO), zinc oxide (ZnO), indium tin zinc oxide (ITZO), magnesium oxide (MgO), etc. In some embodiments, the light-emitting substrate LS may further include an auxiliary cathode (not shown). The auxiliary cathode can reduce the resistance of the cathode CE, thereby improving the IR drop problem of the cathode and improving the uniformity of the large OLED light-emitting substrate.

[0098] In some embodiments, as shown in Figure 6, the light-emitting substrate may include a photoextraction layer (CPL) on the side away from the first substrate SUB1 of the multiple light-emitting elements (LDs) to enhance photoextraction efficiency. The material of the photoextraction layer (CPL) is typically an organic material with a high refractive index and low absorptivity. The photoextraction layer (CPL) may be formed by depositing organic small molecule materials ranging from 50 nm to 80 nm in size.

[0099] The light-emitting substrate LS further includes a film encapsulation layer TFE provided on the cathode CE. The film encapsulation layer TFE may have the form of a continuous film formed in light-emitting regions LA1, LA2, LA3, LA4, LA5, LA6 and non-light-emitting region NLA. The film encapsulation layer TFE may include a laminated first encapsulation layer ENL1, a second encapsulation layer ENL2, and a third encapsulation layer ENL3. For example, the first encapsulation layer ENL1 and the third encapsulation layer ENL3 are made of inorganic materials. The inorganic material is at least one material selected from silicon nitride, aluminum nitride, zirconium nitride, titanium nitride, hafnium nitride, tantalum nitride, silicon oxide, aluminum oxide, titanium oxide, tin oxide, cerium oxide, silicon nitride (SiON), and lithium fluoride. Also, for example, the second encapsulation layer ENL2 is made of an organic material. The organic material is at least one material selected from vinyl acid resin, methacrylic acid resin, polyisoprene, vinyl resin, epoxy resin, polyurethane resin, cellulose resin, or perylene resin. Those skilled in the art may modify the number of layers, materials, and structure of the film-encapsulating TFE layer as needed, and this disclosure is not limited thereto.

[0100] In some embodiments, as shown in Figure 6, the color conversion substrate CS comprises a second base substrate SUB2, a color filter layer CFL, a separation wall PW, and a color conversion layer C CL It may include.

[0101] The color conversion substrate CS may include a second substrate SUB2. The second base substrate SUB2 may be formed of a light-transmitting material. For example, the second base substrate SUB2 may be formed of inorganic glass, organic glass, a plastic substrate, or another organic material substrate. The second base substrate SUB2 may be rigid or flexible. The second base substrate SUB2 may further include a buffer layer or an insulating layer to provide a substrate surface with good performance.

[0102] The color conversion substrate CS may further include a color filter layer CFL located on one side of the second base substrate SUB2. The color filter layer CFL is located on the side of the light-emitting element layer LDL away from the first base substrate SUB1. The color filter layer CFL includes a first light-shielding pattern BM1. The first light-shielding pattern BM1 may include a plurality of openings to define a first light-transmitting region TA1, a second light-transmitting region TA2, a third light-transmitting region TA3, and a light-blocking region BA. The first light-shielding pattern BM1 can prevent the occurrence of optical interference due to the mixing of light from adjacent light-transmitting regions and improve color reproducibility.

[0103] In one overlapping light-transmitting region unit, the color filter layer CFL includes color filters CF located at multiple openings of the first light-shielding pattern BM1. The color filters CF may include a first color filter CF1 located in the first light-transmitting region TA1, a second color filter CF2 located in the second light-transmitting region TA2, and a third color filter CF3 located in the third light-transmitting region TA3. The first color filter CF1 selectively transmits light of a first color (e.g., red light) and can block or absorb light of a second and third color. The first color filter CF1 may be a red filter and may contain a red coloring agent such as a red dye or red pigment. The second color filter CF2 selectively transmits light of a second color (e.g., green light) and can block or absorb light of a first color (e.g., red light) and a third color (e.g., blue light). The second color filter CF2 may be a green filter and may contain a green coloring agent such as a green dye or green pigment. The third color filter CF3 selectively transmits a third color of light (e.g., blue light) and can block or absorb the second and first colors of light. The third color filter CF3 may be a blue filter and may contain a blue coloring agent such as a blue dye or blue pigment. As used herein, the term "coloring agent" is understood to include both dyes and pigments. In some embodiments, the first color filter CF1, the second color filter CF2, and the third color filter CF3 may be spaced apart from each other. In some embodiments, adjacent rows R n and R n+1In this configuration, the first color filters CF1 of the same color located in the first light transmission region TA1 and the fourth light transmission region TA4 may have a continuous film layer in the second direction DR2.

[0104] The color conversion substrate CS may include a separation wall PW located on the side away from the second base substrate SUB2 of the color filter CF. The separation wall PW is located within the light blocking region BA and may include multiple apertures.

[0105] The color conversion substrate CS may include a color conversion layer CCL located on one side of the second substrate SUB2. The color conversion layer CCL is located between the light-emitting element layer LDL and the color filter layer CFL. In one overlapping light-transmitting region unit, the color conversion layer CCL includes a color conversion pattern CCP and a light-transmitting pattern TP located in a plurality of openings defined by a separation wall PW. The color conversion pattern CCP includes a first color conversion pattern CCP1 and a second color conversion pattern CCP2.

[0106] The first color conversion pattern CCP1 may emit light by converting or shifting the peak wavelength of the incident light to another specific peak wavelength. The first color conversion pattern CCP1 may convert the synchrotron radiation L provided from the first light-emitting element LD1 into red light having a peak wavelength in the range of about 610 nm to about 650 nm. As shown in Figure 10A, the first color conversion pattern CCP1 may include a first base resin MS1, a first color conversion material QD1 dispersed in the first base resin MSM, and first scattering particles SP1 dispersed in the first base resin MS1. Here, the first color conversion material QD1 is used to convert the light emitted by the first light-emitting element LD1 into red light. 1 scattering particle SP 1 This element has a scattering effect on light, and can divert the light emitted from the first light-emitting element LD1 to the first color conversion pattern CCP1. The light emitted from the first light-emitting element LD1 can be completely converted by the first color conversion material QD1 of the first color conversion mode CCP1, thereby improving the conversion efficiency to red light.

[0107] The second color conversion pattern CCP2 may emit light by converting or shifting the peak wavelength of the incident light to another specific peak wavelength. The second color conversion pattern 340 may convert the synchrotron radiation L provided from the second light-emitting element LD2 into green light having a peak wavelength in the range of approximately 510 nm to approximately 550 nm. As shown in Figure 10B, the second color conversion pattern CCP2 may include a second base resin MS2, a second color conversion material QD2 dispersed in the second base polymer MS2, and scattering particles SP2 dispersed in the second base resin MS2. Here, the second color conversion material QD2 is used to convert the light emitted by the second light-emitting element LD2 into green light. The second scattering particles SP2 have a scattering effect on light and can divert the light emitted from the second light-emitting element LD2 to the second color conversion pattern CCP2, and the light emitted from the second light-emitting element LD2 can be completely converted by the second color conversion material QD2 of the second color conversion pattern CCP2, thereby improving the efficiency of conversion to green light.

[0108] The scattering particles SP1 and SP2 may be inorganic or organic materials. For example, the scattering particles SP1 and SP2 may include hollow silica, aerogel, or porous particles. More specifically, the porous particles may be inorganic or organic particles, or particles containing multiple amorphous pores. The porous particles may include at least one of the following types: TiO2, ZrO2, Al2O3, In2O3, ZnO, SnO2, Sb2O3, and ITO.

[0109] The first color conversion material QD1 and the second color conversion material QD2 may each contain semiconductor nanocrystalline materials, i.e., quantum dots. When electrons transition from the conduction band to the valence band, quantum dots can emit light of a specific color. The shape of the quantum dot is in the art. Used They may have any shape as long as they are used. Specifically, quantum dots may be spherical nanoparticles, conical nanoparticles, multilayer nanoparticles or cubic nanoparticles, as well as nanotubes, nanowires. or nanofiber - It's okay to have it.

[0110] In some embodiments, quantum dots may have a core-shell structure. This core-shell structure includes a core material and a shell material. The core-shell structure includes a nanocrystalline core and a shell surrounding the core. The shell of the quantum dot may be used as a protective layer to prevent chemical modification of the core and maintain semiconductor properties, and / or as a charging layer to impart electrophoretic properties to the quantum dot. The shell may have a monolayer or multilayer structure. The interface between the core and the shell may have a concentration gradient in which the concentration of elements in the shell decreases toward the center of the core. The core of the quantum dot may be any compound selected from group II-VI compounds, group III-V compounds, group IV-VI compounds, group IV elements and group IV compounds and combinations thereof. The shell of the quantum dot may include one of oxides of metallic materials, oxides of nonmetallic materials, semiconductor compounds, and combinations thereof. A transition material can be added between the core material and the shell material to achieve a gradual transition of the crystal lattice, which effectively reduces the internal pressure due to crystal defects in the quantum dot, thereby further improving the luminescence efficiency and stability of the quantum dot.

[0111] In some embodiments, the group II-VI compound is CdSe, CdTe, ZnS, ZnSe, ZnTe, ZnO, HgS, HgSe, HgTe, MgSe, MgS, and so Raka A binary compound selected from the following group, and AgInS, CuInS, CdSeS, CdSeTe, CdSTe, ZnSeS, ZnSeTe, ZnSTe, HgSeS, HgSeTe, HgSTe, CdZnS, CdZnSe, CdZnTe, CdHgS, CdHgSe, CdHgTe, HgZnS, HgZnSe, HgZnTe, MgZnSe, MgZnS, and this Raka A ternary compound selected from the following group, and HgZnTeS, CdZnSeS, CdZnSeTe, CdZnSTe, CdHgSeS, CdHgSeTe, CdHgSTe, HgZnSeS, HgZnSeTe, HgZnSTe, and this Raka A quaternary compound may be selected from the group consisting of the following, and may also be selected from the group consisting of the following.

[0112] In some examples, the group III-V compound is GaN, GaP, GaAs, GaSb, AlN, AlP, AlAs, AlSb, InN, InP, InAs, InSb, and so on. Raka A binary compound selected from the group, and GaNP, GaNas, GaNSb, GaPAs, GaPSb, AlNP, AlNAs, AlNSb, AlPAs, AlPSb, InGaP, InNAs, InNP, InNAs, InNSb, InPAs, InPSb, and this Raka A ternary compound selected from the following group, and GaAlNP, GaAlNAs, GaAlNSb, GaAlPAs, GaAlPSb, GaInNP, GaInNAs, GaInNSb, GaInPAs, GaInPSb, InAlNP, InAlNAs, InAlNSb, InAlPAs, InAlPSb, and this Raka A quaternary compound may be selected from the group consisting of the following, and may also be selected from the group consisting of the following.

[0113] In some examples, the group III-V compound is GaN, GaP, GaAs, GaSb, AlN, AlP, AlAs, AlSb, InN, InP, InAs, InSb, and so on. Raka A binary compound selected from the group, and GaNP, GaNas, GaNSb, GaPAs, GaPSb, AlNP, AlNAs, AlNSb, AlPAs, AlPSb, InGaP, InNAs, InNP, InNAs, InNSb, InPAs, InPSb, and this Raka A ternary compound selected from the following group, and GaAlNP, GaAlNAs, GaAlNSb, GaAlPAs, GaAlPSb, GaInNP, GaInNAs, GaInNSb, GaInPAs, GaInPSb, InAlNP, InAlNAs, InAlNSb, InAlPAs, InAlPSb, and this Raka A quaternary compound may be selected from the group consisting of the following, and may also be selected from the group consisting of the following.

[0114] In some embodiments, the transition material may be a ternary alloy material. By controlling the optical properties of quantum dots with a ternary alloy material, quantum dots with the same volume but different emission frequencies can be produced, thereby improving the color gamut coverage of the display device.

[0115] In some embodiments, the core material of the quantum dot includes CdSe and / or InP, and the shell material includes ZnS. For example, if the core material includes InP, surface defects in the InP quantum dot form a surface trap state. By coating the surface of the InP quantum dot with ZnS to form a core-shell structure with InP as the core material and ZnS as the shell material, surface area defects in the quantum dot can be reduced, improving the luminescence efficiency and stability of the quantum dot. The above description is merely an example where the core material includes InP. The principle described above also applies when the core material includes CdSe, or when the core material includes both CdSe and InP.

[0116] In some embodiments, the quantum dots do not contain cadmium (Cd). For example, the core material of the quantum dot is InP, and the shell material is a stack of ZnSe / ZnS. Alternatively, for example, the core material of the quantum dot is ZnTeSe, and the shell material is ZnSe / ZnS.

[0117] The size of the quantum dot may be less than 45 nm, for example, 40 nm, 30 nm, or 20 nm or less. In some embodiments, the size of the quantum dot is in the range of 4 nm to 20 nm, for example, the size of the quantum dot may be 4 nm, 5 nm, 7 nm, 10 nm, 13 nm, 17 nm, or 20 nm. By adjusting the color of the light emitted from the quantum dot depending on its size, the quantum dot can emit light of various colors, such as blue light, red light, and green light. Here, the size of the red quantum dot may differ from the size of the green quantum dot.

[0118] In some embodiments, the thickness of the color conversion layer CCL is in the range of 5 μm to 30 μm. The thickness of the first color conversion pattern CCP1 and / or the second color conversion pattern CCP2 is in the range of 5 μm to 30 μm. That is, at least one of the thicknesses of the first color conversion pattern CCP1 and / or the second color conversion pattern CCP2 is in the range of 5 μm to 30 μm, for example, a thickness in the range of 5 μm to 30 μm may be 5 μm, 10 μm, 15 μm, 18 μm, 21 μm, 25 μm, 28 μm, or 30 μm. Here, the thicknesses of the first color conversion pattern CCP1 and the second color conversion pattern CCP2 may be the same or different from each other.

[0119] As shown in Figure 11, the light transmission pattern TP consists of the third base resin MS3 and the third scattering dispersed in the third base resin MS3. particle This may include SP3.

[0120] The The first color conversion pattern CCP1, the second color conversion pattern CCP2, and the light transmission pattern TP may be formed by an inkjet method using an ink composition. The separation wall PW on the color conversion substrate CS may be stably positioned at a desired location and used as a guide element for the ink composition forming the first color conversion pattern CCP1, the second color conversion pattern CCP2, and the light transmission pattern TP.

[0121] As shown in Figure 6, The color conversion substrate CS may further include a first cover layer CAP1 that covers a first color filter CF1, a second color filter CF2, and a third color filter CF3. The first cover layer CAP1 is in direct contact with the first color filter CF1, the second color filter CF2, and the third color filter CF3. In other words, the first cover layer CAP1 is located on the side of the first color filter CF1, the second color filter CF2, and the third color filter CF3 that faces the light-emitting substrate LS.The first cover layer CAP1 can prevent contamination or damage to the first color filter CF1, the second color filter CF2, and the third color filter CF3 due to the penetration of impurities such as moisture and air from the outside. Alternatively, the first cover layer CAP1 can prevent contamination or damage to the first color conversion pattern CCP1 and the second color conversion pattern CCP2 due to the penetration of impurities such as moisture and air from the outside. The first cover layer CAP1 can prevent the colorants contained in the first color filter CF1, the second color filter CF2, and the third color filter CF3 from diffusing to other assemblies such as the first color conversion pattern CCP1 and the second color conversion pattern CCP2. The first coating layer CAP1 may be formed of an inorganic material. For example, the first coating layer CAP1 may contain at least one of silicon nitride, aluminum nitride, zirconium nitride, titanium nitride, hafnium nitride, tantalum nitride, silicon oxide, aluminum oxide, titanium oxide, tin oxide, cerium oxide, or silicon nitride.

[0122] As shown in Figure 6, The color conversion substrate CS may further include a second cover layer CAP2 that covers the first color conversion pattern CCP1, the second color conversion pattern CCP2, and the light transmission pattern TP. Therefore, the second cover layer CAP2 can prevent contamination or damage to the first color conversion pattern CCP1, the second color conversion pattern CCP2, and the light transmission pattern TP due to the penetration of impurities such as moisture and air from the outside. In other words, the second cover layer CAP2 is located on the side of the first color conversion pattern CCP1, the second color conversion pattern CCP2, and the light transmission pattern TP that faces the light-emitting substrate LS. The second coating layer CAP2 may be formed of an inorganic material. The second coating layer CAP2 may be formed of the same material as the first coating layer CAP1, or may include several materials used to form the first coating layer CAP1. For example, the second coating layer CAP2 may be formed of at least one of silicon nitride, aluminum nitride, zirconium nitride, titanium nitride, hafnium nitride, tantalum nitride, silicon oxide, aluminum oxide, titanium oxide, tin oxide, cerium oxide, or silicon nitrogen oxide.

[0123] In some embodiments, As shown in Figure 6,The display panel DP may include a touch function layer TL located between the second base substrate SUB2 and the color conversion layer CCL. The touch function layer TL may be a self-capacitive touch function layer or a mutually capacitive touch function layer.

[0124] As shown in Figure 12, the mutually capacitive touch function layer TL has a plurality of touch driving electrodes TL1 and a plurality of touch sensing electrodes TL2 arranged in an array. The touch function layer includes touch driving lines provided along a first direction DR1 and touch sensing lines provided along a second direction DR2. One touch driving line corresponds to one row of touch driving electrodes TL1, and one touch sensing line corresponds to one column of touch sensing electrodes TL2. Capacitance is formed between the touch driving electrodes TL1 and the touch sensor electrodes TL2. A touch scanning signal is input to the touch driving lines, sensing signals are collected on each touch sensing line, and the position changes due to the capacitance to determine the position of the touch point.

[0125] As shown in Figure 13, the self-capacitive touch functional layer TL has a plurality of touch units TL3 arranged in an array. Each touch unit TL3 is connected to the integrated circuit IC via a signal line. Capacitance may exist between the touch unit TL3 and the system's reference voltage terminal (e.g., the ground signal terminal GND). A touch scanning signal is input to each signal line, the sensing signal of each signal line is collected, the location of the capacitance change is determined from the sensing signal of each signal line, and the location of the touch point is determined.

[0126] Furthermore, the touch driving electrode, touch sensing electrode, and touch unit in the touch function layer TL all have a metal mesh structure. As shown in Figure 6, the metal mesh structure WG is located within the light blocking region BA, thus avoiding adverse effects on the light emitted from, for example, the light transmitting regions TA1, TA2, and TA3.

[0127] As shown in Figure 6, The display panel DP may further include an optical tuning layer LCL located between the second base substrate SUB and the touch function layer TL. The optical tuning layer LCL is used to adjust the passage of light through the touch function layer TL. As shown in Figure 15, The light-modulating layer LCL contains a first particle P1 and a second particle P2. The first particle P1 may be a dye molecule, and the second particle P2 may be a particle having a hollow structure.

[0128] For example, the first particle P1 is a blue dye molecule. The blue dye molecule diffuses the blue light emitted from the third light-transmitting region TA3, thereby expanding the display field of view of blue light on the display panel DP.

[0129] The first particle P1 is located within the third light-transmitting region TA3, and the color of the dye molecule and the color of the third light-emitting element LD3 are the same, and it may form the same color as the third subpixel PX3.

[0130] The hollow particle may include an air-filled core component and a shell component surrounding the core component. The hollow particle is spherical in shape and has an average diameter of approximately 10 nm to approximately 200 nm. For example, the average diameter may be 10 nm, 33 nm, 59 nm, 123 nm, 150.3 nm, 188.8 nm, or 200 nm. The material of the shell component may be inorganic. Examples of inorganic materials include at least one of SiO2, MgF2, TiO2, ZrO2, Al2O3, In2O3, ZnO, SnO2, Sb2O3, Fe3O4, and ITO. For example, the material of the shell component may contain only SiO2. Alternatively, for example, the material of the shell component may contain TiO2 and ZrO2. Furthermore, for example, the material of the shell component may contain In2O3, ZnO, SnO2, and Sb2O3. Alternatively, the material of the shell component may be organic. In this case, the shell component has a low dielectric constant, which avoids adverse effects on the functional layer TL due to surface charging. Specifically, at least one of the following materials can be used for the shell component: acrylic polymer, polyimide, urethane polymer, styryl polymer, siloxane polymer, and epoxy polymer. For example, the shell component material may consist only of polyimide. Also, for example, urethane polymer and styrene polymer can be used as materials for the shell component. Furthermore, for example, acrylic polymer, silicone polymer, and epoxy polymer can be used as materials for the shell component.

[0131] The mass percentage of hollow particles can range from 30% to 60%. For example, the mass percentages may be 30%, 36%, 42%, 48.8%, 52%, or 60%. Resin mixtures doped with hollow particles can have a low refractive index and high transmittance. For example, the resin mixture has a transmittance of over 95% at wavelengths from 400 nm to 700 nm and a refractive index of 1.1 to 1.5 at a wavelength of 632 nm. Since the hollow particles are doped into a transparent substrate and placed on the light-emitting side of the color conversion layer CCL, the total refractive index in at least one light-transmitting region of the organic transparent material is reduced to an optimal refractive index for light emission, thereby improving luminescence efficiency.

[0132] Specifically, as shown in Figure 29, the total refractive index I of the transparent material without doping, where the hollow particles located on the light-emitting side of the color conversion layer are located, is approximately 1.5. In contrast, after doping the transparent substrate with hollow particles, the total refractive index II of the transparent material located on the light-emitting side of the color conversion layer is approximately 1.35. The light extraction efficiency can be improved by approximately 6.4% compared to the pre-doping scheme.

[0133] The light-regulating layer LCL is ,light The system further includes a second light-shielding pattern BM2 located in the blocking region BA. The second light-shielding pattern BM2 may have the same planar arrangement pattern as the first light-shielding pattern BM1. The second light-shielding pattern BM2 can prevent the occurrence of optical interference due to the mixing of light from adjacent light-transmitting regions and improve color reproduction.

[0134] In some embodiments, as shown in Figure 6, the light-modulating layer LCL is located only within the third light-transmitting region TA3. In other words, the orthographic projection of the light-modulating layer LCL onto the first base substrate SUB1 overlaps only with the third light-transmitting region TA3. For example, the third light-transmitting region TA3 is configured to transmit blue light. A transparent resin-filled pattern (MRP) is provided in the regions of the first light-transmitting region TA1 and the second light-transmitting region TAD2 that are in the same layer as the light-modulating layer LCL. The transparent resin-filled pattern (MRP) is a matrix such as a transparent resin material. Composed of It may also be used.

[0135] Figure 14 is a schematic diagram of the color conversion substrate of the display panel in the embodiment shown in Figure 6. As shown in Figure 14, the light-modulating layer LCL has a single-layer structure and contains a mixture of first particles P1 and second particles P2. Figure 15 is an enlarged view of the light-modulating layer LCL in Figure 14. Here, as shown in Figure 15, the first particles P1 and second particles P2 are uniformly mixed in their matrix MR. The material of the matrix MR can be at least one of acrylic polymers, polysiloxane polymers, urethane polymers, and imide polymers.

[0136] Figure 16 shows the changes in the configuration of the display panel in the embodiment shown in Figure 6. As shown in Figure 16, the light-modulating layer LCL has a stacked structure and includes a first light-modulating layer LCL1 and a second light-modulating layer LCL2. The first light-modulating layer LCL1 includes a first particle P1, and the second light-modulating layer LCL2 includes a second particle P2. The first light-modulating layer LCL1 is located on the side of the second base substrate SUB2, and the second light-modulating layer LCL2 is located on the side of the first light-modulating layer LCL1 away from the second base substrate SUB2. . table When the display panel DP is used for touch control, the first light adjustment layer LCL1 is activated by pressing. The second particle in the second photomodulating layer LCL2 It can function as a buffer to prevent the hollow structure from bursting.

[0137] The thickness of the first light-modulating layer LCL1 and the thickness of the second light-modulating layer LCL2 may be the same or different. The thickness of the first light-modulating layer LCL1 and the thickness of the second light-modulating layer LCL2 may be in the range of 2 μm to 5 μm, respectively. For example, the thickness may be 2 μm, 3 μm, 4.2 μm, 4.8 μm, or 5 μm.

[0138] The first light-modulating layer LCL1 contains first particles P1, for example, blue dye molecules, which scatter light and thereby broaden the display field of view. The second light-modulating layer LCL2 contains second particles P2, for example, hollow particles, which lower the refractive index of the color conversion layer on the light-emitting side and improve the light extraction efficiency. The first light-modulating layer LCL1 may exist only within the third light-transmitting region TA3. In other words, the orthographic projection of the first light-modulating layer LCL1 on the first base substrate SUB1 overlaps only with the third light-transmitting region TA3.

[0139] Figure 17 shows variations in the configuration of the display panel DP in the embodiment shown in Figure 6. As shown in Figure 17, the optical regulating layer LCL has a stacked structure and includes a first optical regulating layer LCL1 and a second optical regulating layer LCL2. The first optical regulating layer LCL1 contains first particles P1, and the second optical regulating layer LCL2 contains second particles P2. The second optical regulating layer LCL2 is located on the side of the second base substrate SUB2, and the first optical regulating layer LCL1 is located on the side of the second optical regulating layer LCL 2 It is located on the side away from the second base substrate SUB2. The first light-modulating layer LCL1 may exist only within the third light-transmitting region TA3. In other words, the orthographic projection of the first light-modulating layer LCL1 on the first base substrate SUB1 overlaps only with the third light-transmitting region TA3.

[0140] Figure 18 is a cross-sectional view of a display panel DP in some other embodiments of the present disclosure along the line A1-A1' in Figures 3 and 4. As shown in Figure 18, the light-modulating layer LCL has a laminated structure and includes a first light-modulating layer LCL1 and a second light-modulating layer LCL2. The first light-modulating layer LCL1 is located on the side of the second base substrate SUB2, and the second light-modulating layer LCL2 is located on the side of the first light-modulating layer LCL1 away from the second base substrate SUB2. The first light-modulating layer LCL1 contains first particles P1, and the second light-modulating layer LCL2 contains second particles P2. The first light-modulating layer LCL1 and the second light-modulating layer LCL2 have an island-like pattern. The first light-modulating layer LCL1 is located only in the third light-transmitting region TA3, and the second light-modulating layer LCL2 is located to cover the first light-transmitting region TA1, the second light-transmitting region TA2, and the third light-transmitting region TA3. The thickness of the second light-shielding pattern BM2 located in the light-blocking region BA may be approximately equal to the sum of the thicknesses of the first light-modulating layer LCL1 and the second light-modulating layer LCL2 located in the third light-transmitting region TA3, or it may be equal to the thickness of the second light-modulating layer LCL2 located in the first light-transmitting region TA1 and the second light-transmitting region TA2, thereby providing a flat surface for subsequent processes.

[0141] The second light-modulating layer LCL2 includes a plurality of first patterns PL1, second patterns PL2, and third patterns PL3, which are separated from each other. Each of the first patterns PL1, second patterns PL2, and third patterns PL3 may contain second particles P2. The first pattern PL1 is located in the first light-transmitting region TA1, the second pattern PL2 is located in the second light-transmitting region TA2, and the third pattern PL3 is located in the third light-transmitting region TA3. The thickness of the second light-shielding pattern BM2 along the direction perpendicular to the display panel DP is approximately equal to the thickness of the first pattern PL1 and / or the second pattern PL2 along the direction perpendicular to the display panel DP, and is also approximately equal to the sum of the thickness of the third pattern PL3 along the direction perpendicular to the display panel DP and the thickness of the first light-modulating layer LCL1 along the direction perpendicular to the display panel DP. The first patterns PL1, second patterns PL2, and third patterns PL3 are each doped with different mass percentages of second particles P2. By adjusting the doping concentration of the second particle P2, the total refractive index of the transparent material on the light-emitting side of the color conversion layer CCL can be adjusted, thereby increasing the light extraction efficiency.

[0142] Figure 19 shows variations in the configuration of the display panel DP in the embodiment shown in Figure 18. As shown in Figure 19, the first light-modulating layer LCL1 is located only within the third light-transmitting region TA3, and the second light-modulating layer LCL2 has a continuous film layer structure covering the first light-transmitting region TA1, the second light-transmitting region TA2, the third light-transmitting region TA3, and the light-blocking region BA. The thickness of the second light-shielding pattern BM2 may be approximately equal to the thickness of the second light-modulating layer LCL2, and may be smaller than the thickness of the second light-modulating layer LCL2 located within the first light-transmitting region TA1 and the second light-transmitting region TAD2.

[0143] Figure 20 is a cross-sectional view of a display panel DP in yet another embodiment of the present disclosure along the line A1-A1' in Figures 3 and 4. As shown in Figure 20, the light-modulating layer LCL and the color filter layer CF are provided in the same layer. The light-modulating layer LCL has a laminated structure and includes a first light-modulating layer LCL1 and a second light-modulating layer LCL2. The first light-modulating layer LCL1 is located on the side of the second base substrate SUB2, and the second light-modulating layer LCL2 is located on the side of the first light-modulating layer LCL1 away from the second base substrate SUB2. The first light-modulating layer LCL1 contains first particles P1, and the second light-modulating layer LCL2 contains second particles P2. The light-modulating layer LCL is located in a third light-transmitting region TA3. . table When the display panel DP is used for touch control, the first light adjustment layer LCL1 is activated by pressing. In the second photomodulating layer LCL2, the second particle P2 It can function as a buffer to prevent the hollow structure from bursting.

[0144] Figure 21 shows other configuration variations of the display panel DP in the embodiment shown in Figure 20. As shown in Figure 21, the positions of the first light-modulating layer LCL1 and the second light-modulating layer LCL2 are interchangeable, and the disclosure is not limited thereto.

[0145] Figure 22 shows further configuration variations of the display panel DP in the embodiment shown in Figure 20. As shown in Figure 22, the light-modulating layer LCL has a single-layer structure and contains a mixture of first particles P1 and second particles P2. The first particles P1 and second particles P2 are uniformly mixed in the substrate MR. The thickness of the light-modulating layer LCL is approximately equal to the thickness of the first color filter CF1 and the second color filter CF, thereby providing a flat surface for subsequent processes.

[0146] In some embodiments, the light-modulating layer LCL is placed directly on the second base substrate SUB2. In other words, the light-modulating layer LCL is in direct contact with the second base substrate SUB2.

[0147] Figure 23 shows yet another configuration variation of the display panel DP in the embodiment shown in Figure 6. TheThe emission spectra of the first light-emitting element LD1, the second light-emitting element LD2, and the third light-emitting element LD3 are different from each other. The first light-emitting element LD1 emits first light L1, the second light-emitting element LD2 emits second light L2, and the third light-emitting element LD3 emits third light L3. In some embodiments, Different light-emitting elements (LDs) within the display panel (DP) emit light of different colors. The first light L1, the second light L2, and the third light L3 may be the same light, i.e., three different types of light having approximately the same peak wavelength. For example, the first light L1, the second light L2, and the third light L3 are all blue light of the same color. In some other embodiments, the first light L1, the second light L2, and the third light L3 may be different lights. That is, the peak wavelength ranges of the first light L1, the second light L2, and the peak wavelength region of light L3 are different from each other. For example, the first light L1 is red light, the second light L2 is green light, and the third light L3 is blue light.

[0148] Furthermore, the first light L1, the second light L2, and the third light L3 may be three different types of light with peak wavelengths that are different from each other but within the same peak wavelength range. In some examples, the first light L1 is blue light of one color, the second light L2 is blue light of another color, and the third light L3 is blue light of a different color from the two blue lights mentioned above.

[0149] In the above-described light-emitting element LD, factors that cause differences between light-emitting elements L include, but are not limited to, different materials for forming the light-emitting layer OL, different mass percentages of light-emitting components in the light-emitting layer OL, or other factors that may affect the emission spectrum of the first light-emitting material layer EML1.

[0150] For example, the wavelength of the emission peak of the first light-emitting element LD1 is in the range of 450 nm to 459 nm. For instance, the wavelengths are 450 nm, 453 nm, 455.2 nm, 457.3 nm, 458.8 nm, or 459 nm. The wavelength of the emission peak of the second light-emitting element LD2 is in the range of 460 nm to 469 nm. For instance, the wavelengths are 460 nm, 463 nm, 465.2 nm, 467.3 nm, 468.8 nm, or 469 nm. The wavelength of the emission peak of the third light-emitting element LD3 is in the range of 470 nm to 479 nm. For instance, the wavelengths are 470 nm, 473 nm, 475.2 nm, 477.3 nm, 478.8 nm, or 479 nm.

[0151] Of course, there are various other cases. For example, the wavelength of the emission peak of the first light-emitting element LD1 may be greater than the wavelength of the emission peak of the second light-emitting element LD2. Alternatively, the wavelength of the emission peak of the first light-emitting element LD1 may be greater than the wavelength of the emission peak of the third light-emitting element LD3. The above description is merely an example for illustrative purposes and is not limited thereto.

[0152] Furthermore, referring to Figure 23, the first color conversion pattern CCP1 and the second color conversion pattern CCP2 have different light absorption characteristics because the internal color conversion material QD is different. This can reflect the fact that the luminous efficiency differs when light of different peak wavelengths is converted to light of a different specific color, or when the peak of light is shifted to the position of the peak of light of a different specific color. In some examples, the luminous efficiency of the first color conversion pattern CCP1 when the first light L1 is converted to light of another specific peak wavelength, or when the peak of the first light L1 is moved to the position of the peak of light of another specific peak wavelength, is higher than the luminous efficiency of the first color conversion pattern CCP1 when the second light L2 is converted to light of another specific peak wavelength, or when the peak of the second light L2 is moved to the position of the peak of light of another specific peak wavelength, and is also higher than the luminous efficiency of the first color conversion pattern CCP1 when the third light L3 is converted to light of another specific peak wavelength, or when the peak of the third light L3 is moved to the position of the peak of light of another specific peak wavelength. Similarly, the luminous efficiency of the second color conversion pattern CCP2 when the second light L2 is converted to light of another specific peak wavelength, or when the peak of the second light L2 is moved to the position of the peak of light of another specific peak wavelength, is higher than the luminous efficiency of the second color conversion pattern CCP2 when the first light L1 is converted to light of another specific peak wavelength, or when the peak of the first light L1 is moved to the position of the peak of light of another specific peak wavelength, and is also higher than the luminous efficiency of the second color conversion pattern CCP2 when the third light L3 is converted to light of another specific peak wavelength, or when the peak of the third light L3 is moved to the position of the peak of light of another specific peak wavelength.

[0153] Similarly, the color conversion pattern CCP and the light transmission pattern TP have different light transmission properties depending on the presence or absence of the internal color conversion material QD. This can reflect the fact that light with different peak wavelengths passes through the light transmission pattern TP at different efficiencies. In some examples, the efficiency of the third light L3 passing through the light transmission pattern TP is greater than the efficiency of the second light L2 passing through the light transmission pattern TP and the efficiency of the first light L1 passing through the light transmission pattern TP.

[0154] Therefore, by matching the absorption spectrum of the first color conversion pattern CCP1 with the emission spectrum of the first light-emitting element LD1, and by matching the absorption spectrum of the second color conversion pattern CCP2 with the emission spectrum of the second light-emitting element LD2, the optical conversion ratio of the color conversion layer CCL is increased, thereby improving the color characteristics of the display panel.

[0155] As shown in Figure 23, the first light transmission region TA1 corresponds to the first light emission region LA1 and is provided so as to overlap with or face the first light emission region LA1, the second light transmission region TA2 corresponds to the second light emission region LA2 and is provided so as to overlap with or face the second light emission region LA2, and the third light transmission region TA3 corresponds to the third light emission region LA3 and is provided so as to overlap with or face the third light emission region LA3. As a result, the first color conversion pattern CCP1 can emit light by converting the peak wavelength of the first light L1 to another specific peak wavelength or by moving the peak wavelength of the first light ray L1 to the peak position of another specific wavelength, the second color conversion pattern CCP2 can emit light by converting the peak wavelength of the second light L2 to another specific peak wavelength or by moving the peak wavelength of the second light ray L2 to the peak position of another specific wavelength, and the light transmission pattern TP can transmit the third light L3. As a result, the conversion efficiency of light L passing through the first color conversion pattern CCP1 and the conversion efficiency of the second color conversion pattern CCP2 are improved, the light transmission efficiency of the light transmission pattern TP is also improved, and the light extraction efficiency of the display panel DP is improved.

[0156] Figure 24 shows the configuration changes of two adjacent overlapping units in the display panel DP according to the embodiment shown in Figure 6. The first overlapping unit RU1 and the second overlapping unit RU2 are arranged adjacent to each other. Each overlapping unit RU includes a first light-transmitting region TA1, a second light-transmitting region TA2, and a third light-transmitting region TA3. As shown in Figure 24, the third light-transmitting region TA3 of the first overlapping unit RU1 and the third light-transmitting region TAD3 of the second overlapping unit RU2 are arranged adjacent to each other. In some embodiments, a first light-shielding pattern BM1 is used between two adjacent third light-transmitting regions TA3. part Without arranging them, the third color filter CF3 of the same color located in the third light transmission region TA3 of the first overlapping unit RU1 and the third light transmission region TA3 of the second overlapping unit RU2 in the first direction DR1 may have a continuous film layer.

[0157] Similarly, the second light-transmitting region TA2 of the first overlapping unit RU1 and the second light-transmitting region TA2 of the second overlapping unit RU2 may be arranged adjacent to each other. In some embodiments, the first light-shielding pattern BM1 is placed between two adjacent second light-transmitting regions TA2. part Without arranging them, the second color filter CF2 of the same color located in the second light transmission region TA2 of the first overlapping unit RU1 and the second light transmission region TA2 of the second overlapping unit RU2 in the first direction DR1 may have a continuous film layer. Selectively The first light-transmitting region TA1 of the first overlapping unit RU1 and the first light-transmitting region TA1 of the second overlapping unit RU2 may be arranged adjacent to each other. In some embodiments, a first light-shielding pattern BM1 is placed between two adjacent first light-transmitting regions TA1. part Without arranging them, the first color filters CF1 of the same color located in the first overlapping unit RU1 and the first light-transmitting region TA1 in the second overlapping unit RU2 in the first direction DR1 may have a continuous film layer. Two adjacent second light-transmitting regions TA2 or two adjacent first light-transmitting regions TA1 have substantially the same structure as two adjacent third light-transmitting regions TA3 in Figure 23.

[0158] Figure 25 shows another configuration variation of two adjacent overlapping units in the display panel DP according to the embodiment shown in Figure 6. The first overlapping unit RU1 and the second overlapping unit RU2 are arranged adjacent to each other. Each overlapping unit RU includes a first light-transmitting region TA1, a second light-transmitting region TA2, and a third light-transmitting region TA3. As shown in Figure 25, the third light-transmitting region TA3 of the first overlapping unit RU1 and the third light-transmitting region TAD3 of the second overlapping unit RU2 are arranged adjacent to each other. In some embodiments, a separation wall PW is used between two adjacent third light-transmitting regions TA3. part Without arranging the above, the same-colored light transmission patterns TP located in the third light transmission region TA3 of the first overlapping unit RU1 and the third light transmission region TAD3 of the second overlapping unit RU2 in the first direction DR1 may have a continuous film layer.

[0159] Figure 26 shows further configuration variations of two adjacent overlapping units in the display panel DP according to the embodiment shown in Figure 6. The first overlapping unit RU1 and the second overlapping unit RU2 are arranged adjacent to each other. Each overlapping unit RU includes a first light-transmitting region TA1, a second light-transmitting region TA2, and a third light-transmitting region TA3. As shown in Figure 26, the first light-transmitting region TA1 of the first overlapping unit RU1 and the first light-transmitting region TA1 of the second overlapping unit RU2 are arranged adjacent to each other. In some embodiments, a separation wall PW is used between two adjacent first light-transmitting regions TA1. part Without arranging the first color conversion pattern CCP1 of the same color located in the first overlapping unit RU1 and the first overlapping unit RU2 in the first direction DR1 may have a continuous film layer.

[0160] Similarly, the second light-transmitting region TA2 of the first overlapping unit RU1 and the second light-transmitting region TA2 of the second overlapping unit RU2 may be arranged adjacent to each other. In some embodiments, a separation wall PW is placed between two adjacent second light-transmitting regions TA2. partWithout arranging the second color conversion pattern CCP2 of the same color located in the second light transmission region TA2 of the first overlapping unit RU1 and the second light transmission region TA2 of the second overlapping unit RU2 in the first direction DR1 may have a continuous film layer.

[0161] Figure 27 shows further configuration variations of two adjacent overlapping units in the display panel DP in the embodiment shown in Figure 6. The first overlapping unit RU1 and the second overlapping unit RU2 are arranged adjacent to each other. Each overlapping unit RU includes a first light-transmitting region TA1, a second light-transmitting region TA2, and a third light-transmitting region TA3. As shown in Figure 27, the third light-transmitting region TA3 of the first overlapping unit RU1 and the third light-transmitting region TAD3 of the second overlapping unit RU2 are arranged adjacent to each other. In some embodiments, a first light-shielding pattern BM1 is used between two adjacent third light-transmitting regions TA3. part Without arranging them, the same-colored third color filters CF3 located in the third light-transmitting region TA3 of the first overlapping unit RU1 and the third light-transmitting region TA3 of the second overlapping unit RU2 in the first direction DR1 may have a continuous film layer. Also, a separation wall PW between two adjacent third light-transmitting regions TA3. part Without arranging the above, the same-colored light transmission patterns TP located in the third light transmission region TA3 of the first overlapping unit RU1 and the third light transmission region TA3 of the second overlapping unit RU2 in the first direction DR1 may have a continuous film layer.

[0162] Figure 28 shows further configuration variations of two adjacent overlapping units in the display panel DP according to the embodiment shown in Figure 6. The first overlapping unit RU1 and the second overlapping unit RU2 are arranged adjacent to each other. Each overlapping unit RU includes a first light-transmitting region TA1, a second light-transmitting region TA2, and a third light-transmitting region TA3. As shown in Figure 28, the first light-transmitting region TA1 of the first overlapping unit RU1 and the first light-transmitting region TA1 of the second overlapping unit RU2 are arranged adjacent to each other. In some embodiments, without arranging a first light-shielding pattern BM1 between the two adjacent first light-transmitting regions TA1, the first color filters CF1 of the same color located in the first light-transmitting region TA1 of the first overlapping unit RU1 and the first light-transmitting region TA1 of the second overlapping unit RU2 in the first direction DR1 may have a continuous film layer. Furthermore, without arranging a separation wall PW between two adjacent first light-transmitting regions TA1, the first color conversion pattern CCP1 of the same color located in the first overlapping unit RU1 and the first light-transmitting region TA1 in the second overlapping unit RU2 in the first direction DR1 may have a continuous film layer.

[0163] Similarly, the second light-transmitting region TA2 in the first overlapping unit RU1 and the second light-shielding region TA2 in the second overlapping unit RU2 may be arranged adjacent to each other. In some embodiments, the first light-shielding pattern BM1 between two adjacent second light-transmitting regions TA2 part Without arranging the second color filter CF2 of the same color located in the second light-transmitting region TA2 of the first overlapping unit RU1 and the second light-transmitting region TA2 of the second overlapping unit RU2 in the first direction DR1, the second color filter CF2 may have a continuous film layer. Also, a separation wall PW between two adjacent second light-transmitting regions TA2 may be present. part Without arranging the second color conversion pattern CCP2 of the same color located in the second light transmission region TA2 of the first overlapping unit RU1 and the second light transmission region TA2 of the second overlapping unit RU2 in the first direction DR1 may have a continuous film layer.

[0164] As shown in Figure 30, the horizontal axis in Figure 30 represents the wavelength of blue light, and the vertical axis represents the brightness conversion rate of the quantum dot. From Figure 30, it can be seen that when the emission peaks of the blue emission spectrum are different, the brightness conversion rates of the red quantum dot (RQD) film and the green quantum dot (GQD) film are different. As the value of the emission peak (EL peak) of the blue OLED element increases, the brightness conversion rates of RQD and GQD increase. From this, it can be seen that the emission peak of the blue emission spectrum of the blue OLED element is significantly affected by the brightness conversion rate of the quantum dot. 30 As can be seen, increasing the wavelength of blue light from 454 nm to 463 nm increased the brightness conversion rate of the red quantum dot (RQD) film by 14.4%, and the brightness conversion rate of the green quantum dot (GQD) film by 15.8%. Different quantum dot films actually have different optimal blue light excitation wavelengths.

[0165] Furthermore, the embodiments of the display panel DP provided in this disclosure may be combined with each other to obtain the beneficial effects that all embodiments bring.

[0166] Furthermore, the film layers in the display panel DP can be formed sequentially in a direction away from the first base substrate SUB1, or the light-emitting substrate LS and the color conversion substrate CS can be manufactured separately and then assembled together in a facing arrangement according to the positions shown in Figure 6 to form a unit; however, this is not limited here.

[0167] Several embodiments of this disclosure provide a color film substrate. The color film substrate includes a color conversion substrate CS as described above. The base substrate in the color film substrate includes a second base substrate SUB2 as described above.

[0168] As described above, the color film substrate has the structure of a color conversion substrate CS, and therefore has the beneficial effects of the color conversion substrate CS as described above, which will not be repeated here.

[0169] The above description is merely a specific embodiment of the Disclosure, but the scope of protection of the Disclosure is not limited thereto. Any modification or substitution that a person skilled in the art could conceive of within the technical scope of the Disclosure should be included within the scope of protection of the Disclosure. Accordingly, the scope of protection of the Disclosure must be the same as that of the claims.

Claims

1. The display panel has multiple overlapping pixel units, each pixel unit including a first subpixel, a second subpixel, and a third subpixel configured to display different colors, First base board and A light-emitting layer located on one side of the first base substrate, comprising a first light-emitting element, a second light-emitting element, and a third light-emitting element, wherein the first light-emitting element is located within a first subpixel, the second light-emitting element is located within a second subpixel, and the third light-emitting element is located within a third subpixel. A color filter layer located on the side of the light-emitting layer away from the first base substrate, comprising at least a first light-shielding pattern, a first color filter, a second color filter, and a third color filter, wherein the first light-shielding pattern defines a plurality of light-transmitting regions, the light-transmitting regions include a first light-transmitting region corresponding to the first subpixel, a second light-transmitting region corresponding to the second subpixel, and a third light-transmitting region corresponding to the third subpixel, and the orthographic projection of the third color filter on the first base substrate is a color filter layer that overlaps with the third light-transmitting region. A color conversion layer located between the light-emitting element layer and the color filter layer, comprising a first color conversion pattern, a second color conversion pattern, and a light transmission pattern, wherein the first color conversion pattern is located within the first subpixel, the second color conversion pattern is located within the second subpixel, and the light transmission pattern is located within the third subpixel, A touch function layer located on the side of the color conversion layer away from the first base substrate, The touch functional layer is located on the side away from the first base substrate, and its orthographic projection on the first base substrate overlaps with at least the third light-transmitting region, and comprises a light-modulating layer having first particles and second particles, wherein the first particles contain dye molecules, the second particles have a hollow structure, and the mass percentage of the second particles is in the range of 30% to 60%. A display panel wherein the light-adjusting layer comprises a stacked first light-adjusting layer and a second light-adjusting layer, the first light-adjusting layer comprises the first particles, the second light-adjusting layer comprises the second particles, the first light-adjusting layer is located on the side of the touch function layer away from the first base substrate, and the second light-adjusting layer is located between the first light-adjusting layer and the touch function layer.

2. The orthographic projection of the light-adjusting layer on the first base substrate overlaps only with the third light-transmitting region, or The orthographic projection of the light-adjusting layer on the first base substrate overlaps only with the third light-transmitting region, and the display panel further comprises a transparent resin-filled pattern disposed in the same layer as the light-adjusting layer, the transparent resin-filled pattern overlapping with the first light-transmitting region and the second light-transmitting region. The display panel according to claim 1.

3. The orthographic projection of the first light-adjusting layer on the first base substrate overlaps only with the third light-transmitting region. or The orthographic projection of the second light-adjusting layer on the first base substrate overlaps with the first light-transmitting region, the second light-transmitting region, and the third light-transmitting region, respectively. The display panel according to claim 1.

4. The light-adjusting layer further includes a second light-shielding pattern, the second light-shielding pattern being located in a light-blocking region that does not overlap with the first light-transmitting region, the second light-transmitting region, and the third light-transmitting region. The display panel according to claim 1.

5. The thickness of the second light-shielding pattern along the direction perpendicular to the display panel is less than or equal to the thickness of the first light-adjusting layer along the direction perpendicular to the display panel. or The second light-adjusting layer includes a plurality of first patterns, second patterns, and third patterns that are separated from each other. The first pattern is located in the first light-transmitting region, the second pattern is located in the second light-transmitting region, the third pattern is located in the third light-transmitting region, and The thickness of the second light-shielding pattern along the direction perpendicular to the display panel is approximately equal to the thickness of the first pattern and / or the thickness of the second pattern along the direction perpendicular to the display panel, and is approximately equal to the sum of the thicknesses of the third pattern and the first light-adjusting layer along the direction perpendicular to the display panel. The display panel according to claim 4.

6. The light adjustment layer and the color filter layer are provided in the same layer. The display panel according to claim 2.

7. The color of the dye molecule is the same as the color of the third subpixel. or The second particle is spherical and includes an air-filled core component and a shell component surrounding the core component. The display panel according to claim 1.

8. A second base substrate, A color filter layer located on the second base substrate and comprising at least a first light-shielding pattern, a first color filter, a second color filter, and a third color filter, wherein the first light-shielding pattern defines a plurality of light-transmitting regions, the light-transmitting regions include a first light-transmitting region for transmitting light of a first color, a second light-transmitting region for transmitting light of a second color, and a third light-transmitting region for transmitting light of a third color, and the orthographic projection of the third color filter on the second base substrate is a color filter layer that overlaps with the third light-transmitting region, A color conversion layer located on the side of the color filter layer away from the second base substrate, including a first color conversion pattern, a second color conversion pattern, and a light transmission pattern, A touch function layer located between the color conversion layer and the second base substrate, A light-modulating layer located between the touch functional layer and the second base substrate, wherein the orthographic projection on the second base substrate overlaps at least with the third light-transmitting region, and comprising a first particle and a second particle, wherein the first particle comprises a dye molecule, the second particle has a hollow structure, and the mass percentage of the second particle is in the range of 30% to 60%. Equipped with, A color film substrate wherein the light-modulating layer comprises a stacked first light-modulating layer and a second light-modulating layer, the first light-modulating layer comprises the first particles, the second light-modulating layer comprises the second particles, the first light-modulating layer is located on the side of the second base substrate, and the second light-modulating layer is located between the first light-modulating layer and the touch-function layer.

9. The orthographic projection of the light-adjusting layer on the second base substrate overlaps only with the third light-transmitting region. or The orthographic projection of the light-adjusting layer onto the second base substrate overlaps only with the third light-transmitting region, and the color film substrate further comprises a transparent resin-filled pattern provided in the same layer as the light-adjusting layer, the transparent resin-filled pattern overlapping with the first light-transmitting region and the second light-transmitting region. The color film substrate according to claim 8.

10. The orthographic projection of the first light-adjusting layer on the second base substrate overlaps only with the third light-transmitting region, or The orthographic projection of the second light-adjusting layer on the second base substrate overlaps with the first light-transmitting region, the second light-transmitting region, and the third light-transmitting region, respectively. The color film substrate according to claim 8.

11. The light-adjusting layer further includes a second light-shielding pattern, the second light-shielding pattern being located in a light-blocking region that does not overlap with the first light-transmitting region, the second light-transmitting region, and the third light-transmitting region. or The light-modulating layer further includes a second light-shielding pattern, the second light-shielding pattern located in a light-blocking region that does not overlap with the first light-transmitting region, the second light-transmitting region and the third light-transmitting region, and the second light-modulating layer includes a plurality of first patterns, second patterns and third patterns that are separated from each other. The first pattern is located in the first light-transmitting region, the second pattern is located in the second light-transmitting region, the third pattern is located in the third light-transmitting region, and The thickness of the second light-shielding pattern along the direction perpendicular to the color film substrate is approximately equal to the thickness of the first pattern and / or the second pattern along the direction perpendicular to the color film substrate, and is approximately equal to the sum of the thicknesses of the third pattern and the first light-adjusting layer along the direction perpendicular to the color film substrate. The color film substrate according to claim 8.

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