Light-emitting components

Abstract

A light-emitting component includes: a carrier portion; a first light-emitting portion and a second light-emitting portion configured to emit blue light; a first color conversion portion and a second color conversion portion; the first color conversion portion is disposed around the first light-emitting portion and on a side of the first light-emitting portion away from the carrier portion, configured to convert blue light into red light; the second color conversion portion is disposed around the second light-emitting portion and on a side of the light-emitting portion away from the carrier portion, configured to convert blue light into green light; a first filter layer is disposed around the first color conversion portion and the second color conversion portion, the first filter layer having a first opening on the surface of the second color conversion portion away from the carrier portion, configured to transmit red light and reflect the blue light; a second filter layer is disposed around the first color conversion portion and the second color conversion portion, the second filter layer having a second opening on the surface of the first color conversion portion away from the carrier portion; the second filter layer is configured to transmit green light and reflect blue light.

Description

Technical Field

[0001] This disclosure belongs to the field of display technology, and specifically relates to a light-emitting component. Background Technology

[0002] In some display products, a structure combining a monochrome light-emitting part and a color conversion part is used to achieve full-color display. Summary of the Invention

[0003] This disclosure provides the carrier unit;

[0004] A first light-emitting part and a second light-emitting part are disposed on the carrier, and the first light-emitting part and the second light-emitting part are configured to emit blue light;

[0005] A first color conversion unit and a second color conversion unit; the first color conversion unit is disposed around the first light-emitting unit and on the side of the first light-emitting unit away from the support unit, and is configured to convert blue light into red light; the second color conversion unit is disposed around the second light-emitting unit and on the side of the second light-emitting unit away from the support unit, and is configured to convert blue light into green light;

[0006] A first filter layer is disposed around the first color conversion part and the second color conversion part. The first filter layer completely covers the surface of the first color conversion part away from the support part, and has a first opening on the surface of the second color conversion part away from the support part. The first filter layer is configured to transmit red light converted by the first color conversion part and reflect blue light emitted by the first light-emitting part and the second light-emitting part.

[0007] A second filter layer is disposed around the first color conversion part and the second color conversion part. The second filter layer completely covers the surface of the second color conversion part away from the support part and has a second opening on the surface of the first color conversion part away from the support part. The second filter layer is configured to transmit green light converted by the second color conversion part and reflect blue light emitted by the first light-emitting part and the second light-emitting part.

[0008] In some embodiments, the first filter layer includes multiple first films and multiple second films, with the first films and second films alternately disposed, and the refractive indices of the first films and the second films being different.

[0009] The second filter layer includes multiple third films and multiple fourth films, with the third films and the fourth films alternately arranged, and the refractive indices of the third films and the fourth films being different.

[0010] Among them, the first film layer, the second film layer, the third film layer, and the fourth film layer are all inorganic film layers.

[0011] In some embodiments, the first and third film layers are made of Nb2O5, and the second and fourth film layers are made of SiO2.

[0012] In some embodiments, the sum of the number of layers of the first film layer and the second film layer is greater than or equal to 11, and the sum of the number of layers of the third film layer and the fourth film layer is greater than or equal to 11;

[0013] The thickness d1 of the first film layer satisfies The thickness d2 of the second film layer satisfies the following conditions: λ1 is between 400 and 480 nm; n1 is between 1.6 and 2.3; n2 is between 1.3 and 1.5.

[0014] The thickness d3 of the third film layer satisfies: The thickness d4 of the fourth film layer satisfies: λ3 is between 390 and 420 nm, n3 is between 1.6 and 2.3, and n4 is between 1.3 and 1.5.

[0015] In some embodiments, the first filter layer includes a first film layer group and a second film layer group. Both the first film layer group and the second film layer group include multiple alternating layers of first film layer and multiple layers of second film layer. The first film layer group has a transmittance of more than 90% for the red light converted by the first color conversion unit and a reflectance of more than 90% for the blue light emitted by the first light-emitting unit and the second light-emitting unit.

[0016] The second film layer has a transmittance of more than 90% for the red light converted by the first color conversion part, a reflectance of more than 90% for the green light converted by the second color conversion part, and a reflectance of more than 90% for the blue light emitted by the first light-emitting part and the second light-emitting part.

[0017] The second filter layer has a transmittance of more than 90% for the green light converted by the second color conversion part and a reflectance of more than 90% for the blue light emitted by the first light-emitting part and the second light-emitting part.

[0018] In some embodiments, the sum of the number of layers of the third film layer and the fourth film layer is greater than or equal to 11;

[0019] The first filter layer includes a first film layer group and a second film layer group. Both the first film layer group and the second film layer group include alternating first film layers and second film layers. The sum of the number of first film layers and second film layers in the first film layer group is greater than or equal to 11, and the sum of the number of first film layers and second film layers in the second film layer group is greater than or equal to 11.

[0020] In the first film layer group, the thickness of the first film layer satisfies d1. The thickness d2 of the second film layer satisfies the following: λ1 is between 400 and 480 nm, and n1 is between 1.6 and 2.3.

[0021] In the second film layer group, the thickness d1' of the first film layer satisfies: The thickness d2' of the second film layer satisfies the following conditions: λ2 is between 510 and 560 nm, and n2 is between 1.3 and 1.5.

[0022] The thickness d3 of the third film layer satisfies: The thickness d4 of the fourth film layer satisfies: λ3 is between 390 and 420 nm, n3 is between 1.6 and 2.3, and n4 is between 1.3 and 1.5.

[0023] In some embodiments, the light-emitting component further includes a third filter layer; the third filter layer is disposed around the first color conversion portion and the second color conversion portion, the third filter layer has a third opening on the surface of the second color conversion portion away from the support portion, and the third filter layer has a fourth opening on the surface of the first color conversion portion away from the support portion; the orthographic projection of the third opening on the support portion overlaps with the orthographic projection of the first opening on the support portion, and the orthographic projection of the fourth opening on the support portion overlaps with the orthographic projection of the second opening on the support portion;

[0024] The third filter layer is configured to reflect the red light converted by the first color conversion unit, the green light converted by the second color conversion unit, and the blue light emitted by the first light-emitting unit and the second light-emitting unit.

[0025] In some embodiments, the sum of the thicknesses of the first filter layer, the second filter layer, and the third filter layer is less than 10 micrometers.

[0026] In some embodiments, the center wavelength of the green light converted by the second color conversion unit is m0, and the light with a wavelength less than m0 in the green light converted by the second color conversion unit is the target green light;

[0027] The first filter layer has a transmittance of 20% or more for the target green light; the second filter layer has a transmittance of 90% or more for the red light converted by the first color conversion unit.

[0028] In some embodiments, the third filter layer includes multiple fifth films and multiple sixth films, wherein the fifth films and the sixth films are alternately arranged, and the refractive indices of the fifth films and the sixth films are different.

[0029] Both the fifth and sixth membrane layers are inorganic membrane layers.

[0030] In some embodiments, the material of the fifth film layer is Nb2O5, and the material of the sixth film layer is SiO2.

[0031] In some embodiments, the sum of the number of the fifth and sixth film layers is between 10 and 40.

[0032] The thicknesses of the fifth and sixth films are both between 20 and 200 nm.

[0033] In some embodiments, both the first filter layer and the second filter layer are located on the side of the third filter layer away from the support portion.

[0034] In some embodiments, the light-emitting component further includes a third light-emitting part configured to emit blue light; the orthographic projection of either the first filter layer or the second filter layer on the carrier does not overlap with the orthographic projection of the third light-emitting part on the carrier.

[0035] In some embodiments, the light-emitting component further includes an optical functional unit disposed around the third light-emitting unit and located on the side of the third light-emitting unit away from the support unit, and configured to maintain the color of the light emitted by the third light-emitting unit unchanged;

[0036] Both the first filter layer and the second filter layer surround the optical functional part. The first filter layer has a fifth opening on the surface of the optical functional part away from the support part, and the second filter layer has a sixth opening on the surface of the optical functional part away from the support part.

[0037] In some embodiments, the light-emitting component further includes a third light-emitting part configured to emit blue light; the orthographic projection of any one of the first filter layer, the second filter layer, and the third filter layer on the carrier does not overlap with the orthographic projection of the third light-emitting part on the carrier.

[0038] In some embodiments, the light-emitting component further includes an optical functional unit disposed around the third light-emitting unit and configured to maintain the blue light emitted by the third light-emitting unit unchanged.

[0039] Each of the first filter layer, the second filter layer, and the third filter layer surrounds the optical functional part. The first filter layer has a fifth opening on the surface of the optical functional part away from the support part, the second filter layer has a sixth opening on the surface of the optical functional part away from the support part, and the third filter layer has a seventh opening on the surface of the optical functional part away from the support part.

[0040] In some embodiments, the light-emitting component is a light-emitting chip.

[0041] In some embodiments, the light-emitting component further includes a driving backplate, the support portion is disposed on the driving backplate, and the first light-emitting portion and the second light-emitting portion are located on the side of the support portion away from the driving backplate. Attached Figure Description

[0042] Figure 1 This is a schematic diagram of a light-emitting component provided in some embodiments.

[0043] Figure 2 This is a schematic diagram of a light-emitting component provided in some embodiments of this disclosure.

[0044] Figure 3 for Figure 2 A schematic diagram of the first and second filter layers.

[0045] Figure 4A This is a schematic diagram of the film stacking of the first and second filter layers provided in some examples of this disclosure.

[0046] Figure 4B This is a schematic diagram of the film stacking of the first filter layer provided in some other examples of this disclosure.

[0047] Figure 5 This is a schematic diagram of a light-emitting component provided in some other embodiments of this disclosure.

[0048] Figure 6 This is a schematic diagram of a light-emitting component provided in some embodiments of the present disclosure.

[0049] Figure 7 for Figure 6 A schematic diagram of the first and second filter layers.

[0050] Figure 8 This is a schematic diagram of a light-emitting component provided in some other embodiments of this disclosure.

[0051] Figure 9 for Figure 8 A schematic diagram of the first, second, and third filter layers in the image.

[0052] Figure 10 The image shows the reflection spectrum of the first filter layer provided in a specific example of this disclosure.

[0053] Figure 11 The image shows the reflection spectrum of the second filter layer provided in a specific example of this disclosure.

[0054] Figure 12 The image shows the reflectance spectrum of the third filter layer provided in a specific example of this disclosure.

[0055] Figure 13 This is a schematic diagram of a light-emitting component provided in some other embodiments of this disclosure.

[0056] Figure 14 This is a schematic diagram of a light-emitting component provided in some embodiments of the present disclosure.

[0057] Figure 15 for Figure 14 A schematic diagram of the first, second, and third filter layers in the image.

[0058] Figure 16 This is a schematic diagram showing the connection between the light-emitting component (LED) and the driver backplane when the LED is a light-emitting chip.

[0059] Figure 17 This is a schematic diagram when the light-emitting component is a display substrate. Detailed Implementation

[0060] To enable those skilled in the art to better understand the technical solutions of this disclosure, the disclosure will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0061] Unless otherwise defined, the technical or scientific terms used in this disclosure shall have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms “a,” “an,” “an,” “the,” and similar words used in this disclosure do not indicate quantity limitation and may indicate singular or plural. The terms “comprising,” “including,” “having,” and any variations thereof used in this disclosure are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or device that includes a series of steps or modules (units) is not limited to the listed steps or units, but may also include steps or units not listed, or may include other steps or units inherent to such processes, methods, products, or devices. The terms “connected,” “linked,” “coupled,” and similar words used in this disclosure are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. “Multiple” in this disclosure refers to two or more. “And / or” describes the relationship between related objects, indicating that three relationships may exist; for example, “A and / or B” can indicate: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following objects are in an "or" relationship. The terms "first," "second," "third," etc., used in this disclosure are merely to distinguish similar objects and do not represent a specific ordering of objects. "Above," "below," "left," "right," etc., are only used to indicate relative positional relationships; when the absolute position of the described objects changes, the relative positional relationship may also change accordingly.

[0062] This document describes exemplary embodiments with reference to sectional views and / or plan views, which are idealized exemplary drawings. In the drawings, the thickness of layers and regions is enlarged for clarity. Therefore, variations in shape relative to the drawings are contemplated due to, for example, manufacturing techniques and / or tolerances. Therefore, exemplary embodiments should not be construed as limited to the shapes of the regions shown herein, but rather include shape deviations due to, for example, manufacturing processes. Thus, the regions shown in the drawings are schematic in nature, and their shapes are not intended to show the actual shapes of the regions of the device, nor are they intended to limit the scope of the exemplary embodiments.

[0063] Figure 1 This is a schematic diagram of the light-emitting component provided in some embodiments, such as... Figure 1 As shown, the light-emitting component includes: a carrier part 10, a plurality of light-emitting parts 20, a first color conversion part 31, a second color conversion part 32, and an optical functional part 33.

[0064] Multiple light-emitting portions 20 are disposed on the support portion 10, and all of the multiple light-emitting portions 20 emit the same blue light. The multiple light-emitting portions 20 include, for example, a first light-emitting portion 21, a second light-emitting portion 22, and a third light-emitting portion 23. A portion of a first color conversion portion 31 is disposed around the first light-emitting portion 21, and another portion is located on the side of the first light-emitting portion 21 away from the support portion 10. The first color conversion portion 31 is configured to convert blue light into red light. A portion of a second color conversion portion 32 is disposed around the second light-emitting portion 22, and another portion is located on the side of the second light-emitting portion 22 away from the support portion 10. The second color conversion portion 32 is configured to convert blue light into green light. A portion of an optical functional portion 33 is disposed around the third light-emitting portion 23, and another portion is located on the side of the third light-emitting portion 23 away from the support portion 10. The optical functional portion 33 is configured to maintain the blue light emitted by the third light-emitting portion 23 unchanged. The area where the first light-emitting part 21 and the first color conversion part 31 are located is a red pixel, the area where the second light-emitting part 22 and the second color conversion part 32 are located is a green pixel, and the area where the third light-emitting part 23 and the optical function part 33 are located is a blue pixel.

[0065] In addition, such as Figure 1 As shown, the light-emitting component also includes an encapsulation layer 50 and a light-shielding portion 40. The encapsulation layer 50 is located on the side of the first color conversion unit 31, the second color conversion unit 32, and the optical functional unit 33 away from the support unit 10, and is configured to encapsulate the first color conversion unit 31, the second color conversion unit 32, and the optical functional unit 33 to prevent water and oxygen from the external environment from corroding the first color conversion unit 31, the second color conversion unit 32, and the light-emitting unit 20. At least a portion of the light-shielding portion 40 is disposed around each light-emitting unit 20 and is located on the side of the encapsulation layer 50 away from the support unit 10. The light-shielding portion 40 is made of a black light-absorbing material. By providing the light-shielding portion 40, color crosstalk between adjacent pixels can be prevented, thereby preventing the color gamut of the display product from being reduced due to color crosstalk.

[0066] The light-emitting component also includes a color resist layer and a transparent layer 60. The color resist layer includes a first color resist portion CF1 and a second color resist portion CF2. The first color resist portion CF1 is located on the side of the first color conversion portion 31 away from the support portion 10, and the second color resist portion CF2 is located on the side of the second color conversion portion 32 away from the support portion 10. The transparent layer 60 is located on the side of the first color resist portion CF1 and the second color resist portion CF2 away from the substrate. The orthographic projection of the transparent layer 60 on the support portion 10 can cover the orthographic projections of the first color conversion portion 31, the second color conversion portion 32, and the optical functional portion 33 on the first substrate. The first color resist portion CF1 is configured to transmit red light and absorb other colors of light, and the second color resist portion CF2 is configured to transmit filtered light and absorb other colors of light.

[0067] exist Figure 1In the light-emitting component shown, due to the limited patterning capability of the material used in fabricating the light-shielding portion 40, its width cannot be made very small, resulting in a large gap between adjacent pixels and affecting the aperture ratio. Furthermore, due to the light-absorbing effect of the light-shielding portion 40, light emitted from the first color conversion unit 31, the second color conversion unit 32, and the optical functional unit 33 is absorbed by the light-shielding portion 40, leading to light efficiency loss and heat generation. Simultaneously, at least a portion of the blue light that the first color conversion unit 31 and the second color conversion unit 32 fail to absorb is also absorbed by the color resist layer, which also causes light efficiency loss and heat generation.

[0068] To at least solve one of the aforementioned technical problems, embodiments of this disclosure provide a light-emitting component. Figure 2 This is a schematic diagram of a light-emitting component provided in some embodiments of this disclosure. Figure 3 for Figure 2 A schematic diagram of the first and second filter layers in the image is shown below. Figure 2 As shown, the light-emitting component includes: a carrier 10, a plurality of light-emitting parts 20, a first color conversion part 31, a second color conversion part 32, a first filter layer 70, and a second filter layer 80.

[0069] The plurality of light-emitting parts 20 are disposed on the support part 10, including a first light-emitting part 21 and a second light-emitting part 22, and the light-emitting parts 20 are configured to emit blue light.

[0070] The first color conversion unit 31 is disposed around the first light-emitting unit 21 and is disposed on the side of the first light-emitting unit 21 away from the support unit 10. That is, the first part of the first color conversion unit 31 is disposed around the first light-emitting unit 21, and the second part of the first color conversion unit 31 is disposed on the side of the first light-emitting unit 21 away from the support unit 10. The first color conversion unit 31 is configured to convert blue light into red light.

[0071] The second color conversion unit 32 is disposed around the second light-emitting unit 22, and is disposed on the side of the second light-emitting unit 22 away from the support unit 10. That is, the first part of the second color conversion unit 32 is disposed around the second light-emitting unit 22, and the second part of the second color conversion unit 32 is disposed on the side of the second light-emitting unit 22 away from the support unit 10. The second color conversion unit 32 is configured to convert blue light into green light.

[0072] Combination Figure 2 and Figure 3As shown, a first filter layer 70 is disposed around the first color conversion portion 31 and the second color conversion portion 32. The first filter layer 70 completely covers the surface of the first color conversion portion 31 away from the support portion 10, and has a first opening K1 on the surface of the second color conversion portion 32 away from the support portion 10. Exemplarily, the orthographic projection of the first opening K1 on the support portion 10 covers the orthographic projection of the surface of the second color conversion portion 32 away from the support portion 10 on the support portion 10.

[0073] The first filter layer 70 is configured to transmit red light and reflect blue light. For example, the first filter layer 70 is configured to transmit the red light converted by the first color conversion unit 31 and reflect the blue light emitted by the light-emitting unit 20. This embodiment of the present disclosure uses an example where the wavelength range of the red light converted by the first color conversion unit 31 is (610nm, 650nm), and the wavelength range of the blue light emitted by the first light-emitting unit 21 and the second light-emitting unit 22 is (420nm, 470nm). For example, the transmittance of the first filter layer 70 for the red light converted by the first color conversion unit 31 is greater than 90%, for example, greater than 99%. For example, the reflectance of the first filter layer 70 for blue light is greater than 90%.

[0074] A second filter layer 80 is disposed around the first color conversion portion 31 and the second color conversion portion 32, the second filter layer 80 completely covers the surface of the second color conversion portion 32 away from the support portion 10, and has a second opening K2 on the surface of the first color conversion portion 31 away from the support portion 10. Exemplarily, the orthographic projection of the second opening K2 on the support portion 10 covers the orthographic projection of the surface of the first color conversion portion 31 away from the support portion 10 on the support portion 10.

[0075] The second filter layer 80 is configured to transmit green light and reflect blue light. For example, the second filter layer 80 is configured to transmit the green light converted by the second color conversion unit 32 and reflect the blue light emitted by the light-emitting unit 20. This embodiment of the present disclosure uses an example where the wavelength range of the green light converted by the second color conversion unit 32 is (510nm, 560nm). For example, the second filter layer 80 has a transmittance of more than 90% for the green light converted by the second color conversion unit 32 and a reflectance of more than 90% for the blue light emitted by the light-emitting unit 20.

[0076] In this embodiment, both the first color conversion unit 31 and the second color conversion unit 32 are surrounded by a first filter layer 70 and a second filter layer 80. The first filter layer 70 transmits red light but reflects blue light; the second filter layer 80 transmits green light but reflects other colors of light. Therefore...

[0077] When either the first color conversion unit 31 or the second color conversion unit 32 fails to fully convert blue light, and a portion of the blue light shines onto the surrounding first filter layer 70 and second filter layer 80, it will be reflected by the first filter layer 70 and the second filter layer 80 back into the first color conversion unit 31 and the second color conversion unit 32 for color conversion again, thereby improving the light efficiency.

[0078] Figure 4A This is a schematic diagram of the film stacking of the first and second filter layers provided in some examples of this disclosure, such as... Figure 4A As shown, in some embodiments, both the first filter layer 70 and the second filter layer 80 employ a distributed Bragg reflector (DBR) structure. Specifically, the first filter layer 70 includes multiple first film layers 71 and multiple second film layers 72, with the first film layers 71 and 72 alternating, and the refractive indices of the first film layers 71 and 72 being different. The second filter layer 80 includes multiple third film layers 81 and multiple fourth film layers 82, with the third film layers 81 and 82 alternating, and the refractive indices of the third film layers 81 and 82 being different. The first film layers 71 and 72 are both inorganic film layers, thus enabling the first filter layer 70 and the second filter layer 80 to provide a certain degree of reflection while also encapsulating the first color conversion unit 31 and the second color conversion unit 32. The inorganic film layers can be inorganic oxide film layers. It should be noted that... Figure 4A This is only to illustrate the arrangement of the film layers contained in the first filter layer 70 and the second filter layer 80. The number of film layers is only for illustration and does not represent the actual number of film layers contained in the first filter layer 70 and the second filter layer 80.

[0079] In this design, the refractive index of the first film layer 71 is greater than that of the second film layer 72, and the refractive index of the third film layer 81 is greater than that of the fourth film layer 82. For example, the materials of the first film layer 71 and the third film layer 81 can be at least one of TiO2, Nb2O5, NbO, and SiN; the materials of the second film layer 72 and the fourth film layer 82 can be at least one of SiO2, MgF2, and LiF.

[0080] For example, the first film layer 71 and the third film layer 81 are both made of Nb2O5, and the second film layer 72 and the fourth film layer 82 are both made of SiO2.

[0081] In some embodiments, the thickness of the first filter layer 70 is less than 5 micrometers, thereby ensuring the effect of transmitting red light and reflecting blue light while preventing the first filter layer 70 from being too thick, which would lead to high production costs. The thickness of the second filter layer 80 is less than 3 micrometers, thereby ensuring the transmission of green light and the reflection of blue light while preventing the second filter layer 80 from being too thick, which would lead to high production costs.

[0082] In some examples, such as Figure 4A As shown, the sum of the number of the first film layer 71 and the second film layer 72 in the first filter layer 70 is greater than or equal to 11, wherein the thickness d1 of the first film layer 71 satisfies λ1 is between 400 and 480 nm, and the thickness d2 of the second film 72 satisfies the following: Here, n1 is the refractive index of the first film layer 71, and n2 is the refractive index of the second film layer 72. For example, n1 is between 1.6 and 2.3, and n2 is between 1.3 and 1.5. This arrangement ensures that the first filter layer 70 has high transmittance for red light and high reflectance for blue light. For example, the sum of the number of the first film layer 71 and the second film layer 72 is greater than or equal to 17, thereby enabling the first filter layer 70 to achieve a transmittance of over 99% for red light.

[0083] In some examples, the sum of the number of the third film layer 81 and the fourth film layer 82 in the second filter layer 80 is greater than or equal to 11, and the thickness d3 of the third film layer 81 satisfies: The thickness d4 of the fourth film layer 82 satisfies: λ3 is between 390 and 420 nm, where n3 is the refractive index of the third film layer 81 and n4 is the refractive index of the fourth film layer 82. For example, n3 is between 1.6 and 2.3, and n4 is between 1.3 and 1.5. This arrangement ensures that the second filter layer 80 has high transmittance for green light and high reflectance for blue light. For example, the sum of the number of the third film layer 81 and the fourth film layer 82 is greater than or equal to 17, thereby enabling the second filter layer 80 to achieve a transmittance of over 99% for green light.

[0084] Figure 4B This is a schematic diagram of the film stacking of the first filter layer provided in other examples of this disclosure. In other examples, such as... Figure 4B As shown, the first filter layer 70 includes a first film layer group 701 and a second film layer group 702. Both the first film layer group 701 and the second film layer group 702 include alternating layers of first film layers 71 and layers of second film layers 72. The first film layer group 701 has a transmittance greater than 90% for red light converted by the first color conversion unit 31 and a reflectance greater than 90% for blue light emitted by the first light-emitting unit 21 and the second light-emitting unit 22. The second film layer group 702 has a transmittance greater than 90% for red light converted by the first color conversion unit 31, a reflectance greater than 90% for green light converted by the second color conversion unit 32, and a reflectance greater than 90% for blue light emitted by the first light-emitting unit 21 and the second light-emitting unit 22. The second filter layer 80 has a transmittance greater than 90% for green light converted by the second color conversion unit 31 and a reflectance greater than 90% for blue light emitted by the first light-emitting unit 21 and the second light-emitting unit 22.

[0085] In some further examples, the sum of the number of layers of the first film layer 71 and the second film layer 72 is greater than or equal to 22. The first filter layer 70 includes a first film layer group 701 and a second film layer group 702. Both the first film layer group 701 and the second film layer group 702 include alternately arranged first film layers 71 and second film layers 72. The sum of the number of layers of the first film layer 71 and the second film layer 72 in the first film layer group 701 is greater than or equal to 11. The sum of the number of layers of the first film layer 71 and the second film layer 72 in the second film layer group 702 is greater than or equal to 11. In the first film layer group 701, the thickness d1 of the first film layer 71 satisfies... λ1 is between 400 and 480 nm, and the thickness d2 of the second film 72 satisfies In the second film layer group 702, the thickness d1' of the first film layer 71 satisfies: λ2 is between 510 and 560 nm, and the thickness d2' of the second film 72 satisfies the following: n1 is the refractive index of the first film layer 71, and n2 is the refractive index of the second film layer 72. For example, n1 is between 1.6 and 2.3, and n2 is between 1.3 and 1.5. In this configuration, the first filter layer 70 has a high transmittance for red light, reaching over 90%; and the first filter layer 70 has a high reflectivity for both the green light converted by the second color conversion unit 32 and the blue light emitted by the light-emitting unit 20 (wherein, the first film layer group 701 can have a good reflectivity for blue light, and the second film layer group 702 can have a good reflectivity for green light).

[0086] In the case where the first filter layer 70 includes a first film layer group 701 and a second film layer group 702, in the second filter layer 80, the sum of the number of the third film layer 81 and the fourth film layer 82 is greater than or equal to 11. The thickness d3 of the third film layer 81 satisfies... The thickness d4 of the fourth film layer 82 satisfies: λ3 is between 390 and 420 nm, where n3 is the refractive index of the third film layer 81 and n4 is the refractive index of the fourth film layer 82. For example, n3 is between 1.6 and 2.3, and n4 is between 1.3 and 1.5. In this case, the transmittance of the second filter layer 80 for green light can be guaranteed to be high, reaching over 90%. For example, the sum of the number of the third film layer 81 and the fourth film layer 82 is greater than or equal to 17, so that the transmittance of the second filter layer 80 for green light can reach over 99%.

[0087] In the case where the first filter layer 70 includes a first film layer group 701 and a second film layer group 702, the first filter layer 70 can simultaneously achieve a high reflectivity for both green and blue light. Therefore, when green light emitted from the second color conversion unit 32 strikes the first color conversion unit 31, it will be blocked by the first filter layer 70, and even if some of the red light emitted from the first color conversion unit 31 reaches the second color conversion unit 32, no color conversion will occur. Therefore, the first filter layer 70 and the second filter layer 80 can replace... Figure 1 The light-shielding part 40 in the middle serves to prevent color mixing between pixels. Compared to Figure 1 The light-shielding part 40 is set in the middle. Figure 2 The size of the coverage area of ​​the first filter layer 70 and the second filter layer 80 does not affect the spacing width between adjacent pixels, and therefore does not affect the aperture ratio. Furthermore, the surface of the first color conversion section 31 away from the carrier section 10 is covered by the first filter layer 70, which allows red light to pass through while reflecting other colors of light; the surface of the second color conversion section 32 away from the carrier section 10 is covered by the second filter layer 80, which allows green light to pass through while reflecting other colors of light. Therefore, on the side of the first color conversion section 31 and the second color conversion section 32 away from the carrier section 10, it is unnecessary to provide a color resist layer for filtering, thereby preventing the color resist layer from absorbing light and further improving the light efficiency.

[0088] In one example, the sum of the number of the first film layer 71 and the second film layer 72 in the first filter layer 70 is greater than or equal to 22 and less than 70; the sum of the number of the third film layer 81 and the fourth film layer 82 in the second filter layer 80 is less than 30, so as to prevent excessive cost due to too many film layers while ensuring the filtering performance of the filter layer.

[0089] In some embodiments, the size of the orthographic projection of the light-emitting part 20 onto the carrier part 10 in any direction is between 10 and 30 micrometers, so that the light-emitting part 20 has a small size and the light-emitting component can be applied to high-resolution display products.

[0090] In some embodiments, the light-emitting part 20 includes a light-emitting body, a first electrode and a second electrode electrically connected to the light-emitting body. The light-emitting body includes a first surface facing the support part 10, a second surface away from the support part 10, and a first side surface connecting the first surface and the second surface. The first side surface has an angle of 50° to 70° with the first surface, which is beneficial to achieving higher light extraction efficiency.

[0091] The light-emitting body may include a first semiconductor layer, a light-emitting layer, and a second semiconductor layer arranged sequentially in a direction away from the support portion 10. One of the first semiconductor layer and the second semiconductor layer is an N-type doped gallium nitride (N-GaN) layer, and the other is a P-type doped gallium nitride (P-GaN) layer. The light-emitting layer may be a multi-quantum well (MQW) layer.

[0092] In some embodiments, the first color conversion part 31 and the first light-emitting part 21 can be an inverted trapezoidal structure as a whole, and the second color conversion part 32 and the second light-emitting part 22 can be an inverted trapezoidal structure as a whole. Specifically, the first color conversion part 31 and the second color conversion part 32 can each include a third surface facing the support part 10, a fourth surface away from the support part 10, and a second side surface connecting the third surface and the fourth surface, with an acute angle formed between the second side surface and the fourth surface.

[0093] For example, the first color conversion unit 31 may include a red quantum dot material for converting light into red light. For example, the first color conversion unit 31 may also include scattering particles for scattering light. When light emitted from the first light-emitting unit 21 strikes the first color conversion unit 31, the red quantum dot material converts blue light into red light, and the scattering particles scatter both the blue and red light from the first light-emitting unit 21, ensuring that more light can be converted into red light by the red quantum dots.

[0094] The second color conversion unit 32 may include a green quantum dot material for converting light into green light. For example, the second color conversion unit 32 may also include scattering particles for scattering light. When light emitted from the second light-emitting unit 22 strikes the second color conversion unit 32, the green quantum dot material converts blue light into green light, and the scattering particles scatter both the blue and green light from the second light-emitting unit 22, ensuring that more light is converted into green light by the green quantum dots.

[0095] In some embodiments, such as Figure 2 As shown, the light-emitting component also includes a transparent layer 60, which covers the first filter layer 70 and the second filter layer 80. A portion of the transparent layer 60 surrounds the first color conversion section 31 and the second color conversion section 32, and another portion is located on the side of the first color conversion section 31 and the second color conversion section 32 away from the support section 10. The transparent layer 60 may be made of an organic material.

[0096] In some embodiments, such as Figure 2 As shown, the light-emitting component also includes a cover plate 100, which is located on the side of the transparent layer 60 away from the support portion 10. In one example, the cover plate 100 may be a glass cover plate.

[0097] Figure 5This is a schematic diagram of a light-emitting component provided in some other embodiments of this disclosure. Figure 5 The light-emitting components shown are Figure 2 Similar, the difference lies in, in Figure 5 In this light-emitting component, a third light-emitting part 23 is also included, which is configured to emit blue light; the orthographic projection of either the first filter layer 70 or the second filter layer 80 onto the carrier 10 does not overlap with the orthographic projection of the third light-emitting part 23 onto the carrier 10. At this time, the light-emitting component can emit red, green, and blue light simultaneously.

[0098] The structure of the third light-emitting part 23 is the same as that of the first light-emitting part 21 and the second light-emitting part 22.

[0099] exist Figure 5 In the middle, the third light-emitting part 23 can be in direct contact with the transparent layer 60.

[0100] Figure 6 This is a schematic diagram of a light-emitting component provided in some embodiments of the present disclosure. Figure 6 The light-emitting components shown are Figure 5 Similarly, the difference lies in that the light-emitting component also includes an optical functional section 33, which is disposed around the third light-emitting section 23 and located on the side of the third light-emitting section 23 away from the support section 10. That is, a portion of the optical functional section 33 surrounds the third light-emitting section 23, and another portion is located on the side of the third light-emitting section 23 away from the support section 10. The optical functional section 33 is configured to maintain the color of the light emitted by the third light-emitting section 23 unchanged. For example, the optical functional section 33 may include a transparent portion for direct light transmission. Exemplarily, the optical functional layer may also include scattering particles located within the transparent portion for scattering light.

[0101] Figure 7 for Figure 6 A schematic diagram of the first and second filter layers in the image is shown below. Figure 6 and Figure 7As shown, the first filter layer 70 also surrounds the optical functional part 33. The first filter layer 70 has a fifth opening K5 on the surface of the optical functional part 33 away from the support part 10, that is, the first filter layer 70 has a fifth opening K5 that exposes the surface of the optical functional part 33 away from the support part 10. The second filter layer 80 has a sixth opening K6 on the surface of the optical functional part 33 away from the support part 10, that is, the second filter layer 80 has a sixth opening K6 that exposes the surface of the optical functional part 33 away from the support part 10. The orthographic projections of the fifth opening K5 and the sixth opening K6 on the support part 10 overlap. For example, the orthographic projection of each of the fifth opening K5 and the sixth opening K6 on the support part 10 covers the orthographic projection of the surface of the optical functional part 33 away from the support part 10 on the support part 10. This arrangement ensures that the light from the optical functional part 33 can be emitted smoothly and facilitates the patterning of the first filter layer 70 and the second filter layer 80.

[0102] Figure 8 This is a schematic diagram of a light-emitting component provided in some other embodiments of this disclosure. Figure 9 for Figure 8 A schematic diagram of the first, second, and third filter layers in the image. Figure 8 The light-emitting components shown are Figure 2 Similar, the difference lies in, in Figure 8 In the process, the light-emitting component also includes a third filter layer 90, such as Figure 9 As shown, a third filter layer 90 is disposed around the first color conversion section 31 and the second color conversion section 32. The third filter layer 90 has a third opening K3 on the surface of the second color conversion section 32 away from the support section 10, and a fourth opening K4 on the surface of the first color conversion section 31 away from the support section 10. The orthographic projection of the third opening K3 on the support section 10 overlaps with the orthographic projection of the first opening K1 on the support section 10, and the orthographic projection of the fourth opening K4 on the support section 10 overlaps with the orthographic projection of the second opening K2 on the support section 10. For example, the orthographic projection of each of the first opening K1 and the third opening K3 on the support section 10 covers the orthographic projection of the surface of the second color conversion section 32 away from the support section 10 on the support section 10; the orthographic projection of each of the second opening K2 and the fourth opening K4 on the support section 10 covers the orthographic projection of the surface of the first color conversion section 31 away from the support section 10 on the support section 10.

[0103] The third filter layer 90 is configured to reflect the red light converted by the first color conversion unit 31, the green light converted by the second color conversion unit 32, and the blue light emitted by each light-emitting unit 20. For example, the third filter layer 90 has a reflectivity greater than 90% for the aforementioned red, green, and blue light, and a reflectivity greater than 90% for light with wavelengths between 300 and 780 nm.

[0104] When a third filter layer 90 is provided in the light-emitting component, the third filter layer 90 can effectively reflect red, green, and blue light, thereby improving efficiency while providing good anti-color bleeding effect; the first filter layer 70, the second filter layer 80, and the third filter layer 90 can replace Figure 1 The light-shielding portion 40 in the middle will not have the problem of low aperture ratio. Furthermore, on the side of the first color conversion portion 31 and the second color conversion portion 32 away from the support portion 10, it is not necessary to provide a color resist layer for light filtering, thereby preventing the color resist layer from absorbing light and further improving the light efficiency.

[0105] In addition, the third filter layer 90 can reflect the light emitted by the first color conversion unit 31 toward the second color conversion unit 32 back into the first color conversion unit 31, and finally emit light in the forward direction. Similarly, it can also reflect the light emitted by the second color conversion unit 32 toward the first color conversion unit 31 back into the second color conversion unit 32, and finally emit light in the forward direction. Therefore, compared with the above method of setting the first filter layer 70 to include the first film layer group and the second film layer group, and not setting the third filter layer 70, Figure 8 The embodiments shown not only prevent color bleeding but also improve the forward light emission rate of the light-emitting components, thereby further enhancing luminous efficiency.

[0106] For example, the sum of the thicknesses of the first filter layer 70, the second filter layer 80, and the third filter layer 90 is less than 10 micrometers. For example, the sum of the number of film layers in the first filter layer 90, the second filter layer 80, and the third filter layer 90 is less than 100 layers. For instance, the film thickness of the first filter layer 70 is between 1 and 3 micrometers, the film thickness of the second filter layer 80 is between 1 and 3 micrometers, and the film thickness of the third filter layer 90 is between 1 and 4 micrometers.

[0107] For example, when the light-emitting component includes a third filter layer 90, the sum of the number of the first film layer 71 and the second film layer 72 in the first filter layer 70 is greater than or equal to 11 to ensure that the first filter layer 70 has good red light transmission. For example, the sum of the number of the first film layer 71 and the second film layer 72 is greater than or equal to 17 to ensure that the red light transmittance reaches more than 99%. Similarly, the sum of the number of the third film layer 81 and the fourth film layer 82 in the second filter layer 80 is greater than or equal to 11 to ensure that the second filter layer 80 has good green light transmission. For example, the sum of the number of the third film layer 81 and the fourth film layer 82 is greater than or equal to 17 to ensure that the green light transmittance reaches more than 99%. For example, the sum of the number of the first film layer 71 and the second film layer 72 can be less than 30, and the sum of the number of the third film layer 81 and the fourth film layer 82 can be less than 30 to ensure that the first filter layer 70 and the second filter layer 80 have a smaller thickness.

[0108] For example, when the light-emitting component includes a third filter layer 90, the thickness d1 of the first film layer 71 in the first filter layer 70 satisfies λ1 is between 400 and 480 nm, and the thickness d2 of the second film 72 satisfies the following: n1 is the refractive index of the first film layer 71, and n2 is the refractive index of the second film layer 72. For example, n1 is between 1.6 and 2.3, and n2 is between 1.3 and 1.5. The thickness d3 of the third film layer 81 in the second filter layer 80 satisfies: The thickness d4 of the fourth film layer 82 satisfies λ3 is between 390 and 420 nm, where n3 is the refractive index of the third film layer 81 and n4 is the refractive index of the fourth film layer 82. For example, n3 is between 1.6 and 2.3, and n4 is between 1.3 and 1.5.

[0109] In this design, the center wavelength of the green light converted by the second color conversion unit 32 is m0, and the light with wavelengths less than m0 in the green light converted by the second color conversion unit 32 is the target green light. For example, the transmittance of the first filter layer 70 to the target green light can be greater than or equal to 20%. For example, the wavelength range of the green light converted by the second conversion unit 32 is (510nm, 560nm], m0 is 535nm, and the transmittance of the first filter layer 70 to light with wavelengths in the range of (510nm, 535nm) can be greater than or equal to 20%. For example, the conversion rate of the second filter layer 80 to the red light converted by the first color conversion unit 31 can be greater than or equal to 90%. When the light-emitting component includes a third filter layer 90, since the third filter layer 90 can reflect red, green and blue light well, even if the first filter layer 70 can transmit green light and the second filter layer 80 can transmit red light, pixel color mixing will not occur; at the same time, the light efficiency can be further improved.

[0110] For example, the third filter layer 90 adopts a DBR structure, which includes multiple layers of fifth film layer 91 and sixth film layer 92, which are alternately arranged. The refractive indices of the fifth film layer 91 and the sixth film layer 92 are different; wherein, both the fifth film layer 91 and the sixth film layer 92 are inorganic film layers. In this case, the third filter layer 90 can not only perform the function of reflection, but also encapsulate the first color conversion unit 31 and the second color conversion unit 32.

[0111] For example, the fifth film layer 91 can be made of at least one of TiO2, Nb2O5, NbO, and SiN; the material of the sixth film layer 92 can be at least one of SiO2, MgF2, and LiF. For example, the material of the fifth film layer 91 is Nb2O5, and the material of the sixth film layer 92 is SiO2.

[0112] For example, the sum of the number of layers in the fifth film layer 91 and the sixth film layer 92 is between 10 and 40, and the thickness of both layers is between 20 and 200 nm. This ensures that the third filter layer 90 has good reflectivity for red, green, and blue light, and that the thickness of the third filter layer 90 is not excessive. For instance, the sum of the number of layers in the fifth film layer 91 and the sixth film layer 92 is between 10 and 30, or between 20 and 40, or between 20 and 30.

[0113] When the light-emitting component includes a third filter layer 90, if the first filter layer 70 and the second filter layer 80 are disposed on the side of the third filter layer 90 close to the support portion 10, the formation of the third opening K3 on the third filter layer 90 can easily damage the first filter layer 70 and the second filter layer 80, thereby affecting the light emission effect of the red and green pixels. Therefore, in this embodiment, the first filter layer 70 and the second filter layer 80 are disposed on the side of the third filter layer 90 away from the support portion 10. In this case, the first filter layer 70 with the first opening K1 and the second filter layer 80 with the second opening K2 are formed first. Then, when the third opening K3 and the fourth opening K4 are etched on the third filter layer 90, since the third opening K3 is opposite to the first opening K1 and the fourth opening K4 is opposite to the second opening K2, over-etching of the first filter layer 70 and the second filter layer 80 is avoided.

[0114] In this embodiment, the order of the first filter layer 70 and the second filter layer 80 is not limited. The first filter layer 70 can be disposed on the side of the second filter layer 80 away from the support portion 10, or the first filter layer 70 can be disposed on the side of the second filter layer 80 close to the support portion 10.

[0115] In a specific example, the materials and thicknesses of the plurality of first film layers 71 and the plurality of second film layers 72 in the first filter layer 70 are shown in Table 1 below, and the reflectance spectrum curve of the first filter layer 70 is shown in Table 1 below. Figure 10 As shown, the first filter layer 70 has a low reflectivity (i.e., high transmittance) for red light, and a transmittance greater than 20% for green light with a wavelength less than or equal to 535 nm. For example, the transmittance for green light with a wavelength of 534 nm is about 21%, and the reflectivity for blue light can reach at least 99%.

[0116] Table 1

[0117]

[0118] The materials and thicknesses of the plurality of third film layers 81 and the plurality of fourth film layers 82 in the second filter layer 80 are shown in Table 2 below, and the reflectance spectrum curve of the first filter layer 70 is shown in Table 2 below. Figure 11As shown in the figure. The second filter layer 80 has low reflectivity (i.e., high transmittance) for both red and green light, while its transmittance for blue light can reach over 99%.

[0119] Table 2

[0120]

[0121] The materials and thicknesses of the plurality of fifth film layers 91 and the plurality of sixth film layers 92 in the third filter layer 90 are shown in Table 3 below, and the reflectance spectrum curves of the third filter layer 90 are shown in Table 3 below. Figure 12 As shown in the figure. Among them, the third filter layer 90 has a reflectivity of at least 90% for light with wavelengths in the range of 380~780nm.

[0122] Table 3

[0123]

[0124] Figure 13 This is a schematic diagram of a light-emitting component provided in some other embodiments of this disclosure. Figure 13 The light-emitting components shown are Figure 8 Similar, the difference lies in, in Figure 13 In this light-emitting component, a third light-emitting part 23 is also included, which is configured to emit blue light. The orthographic projection of any one of the first filter layer 70, the second filter layer 80, and the third filter layer 90 onto the support portion 10 does not overlap with the orthographic projection of the third light-emitting part 23 onto the support portion 10. At this time, the light-emitting component can emit red, green, and blue light simultaneously.

[0125] exist Figure 13 In the middle, the third light-emitting part 23 can be in direct contact with the transparent layer 60.

[0126] Figure 14 This is a schematic diagram of a light-emitting component provided in some embodiments of the present disclosure. Figure 15 for Figure 14 A schematic diagram of the first, second, and third filter layers in the image. Figure 14 The light-emitting components shown are Figure 13 Similarly, the difference lies in that the light-emitting component also includes an optical functional section 33, which is disposed around the third light-emitting section 23 and located on the side of the third light-emitting section 23 away from the support section 10. That is, a portion of the optical functional section 33 surrounds the third light-emitting section 23, and another portion is located on the side of the third light-emitting section 23 away from the support section 10. The optical functional section 33 is configured to maintain the color of the light emitted by the third light-emitting section 23 unchanged. For example, the optical functional section 33 may include a transparent portion for direct light transmission. Exemplarily, the optical functional layer may also include scattering particles located within the transparent portion for scattering light.

[0127] like Figure 14 and Figure 15 As shown, a first filter layer 70 surrounds the optical functional part 33. The first filter layer 70 has a fifth opening K5 on the surface of the optical functional part 33 away from the support part 10, that is, the first filter layer 70 has a fifth opening K5 that exposes the surface of the optical functional part 33 away from the support part 10. A second filter layer 80 surrounds the optical functional part. The second filter layer 80 has a sixth opening K6 on the surface of the optical functional part 33 away from the support part 10, that is, the second filter layer 80 has a sixth opening K6 that exposes the surface of the optical functional part 33 away from the support part 10. A third filter layer 90 surrounds the optical functional part. The third filter layer 90 has a seventh opening K7 on the surface of the optical functional part 33 away from the support part 10, that is, the seventh opening K7 on the third filter layer 90 exposes the surface of the optical functional part 33 away from the support part 10. The orthographic projections of any two of the fifth opening K5, the sixth opening K6, and the seventh opening K7 on the support portion 10 overlap. For example, the orthographic projection of each of the fifth opening K5, the sixth opening K6, and the seventh opening K7 on the support portion 10 covers the orthographic projection of the surface of the optical functional portion 33 away from the support portion 10 on the support portion 10.

[0128] This configuration ensures that the light from the optical functional unit 33 can be emitted smoothly, and facilitates the patterning of the first filter layer 70, the second filter layer 80, and the third filter layer 90.

[0129] In the above embodiments, the light-emitting component may further include a first conductive part 201 and a second conductive part 202. Each light-emitting part 20 corresponds to one first conductive part 201 and one second conductive part 202. The first conductive part 201 penetrates the carrier part 10 and is electrically connected to the first electrode of the light-emitting part 20. The second conductive part 202 penetrates the carrier part 10 and is electrically connected to the second electrode of the light-emitting part 20. The first conductive part 201 and the second conductive part 202 are used to be electrically connected to the driving backplane, thereby transmitting the electrical signal provided by the driving backplane to the light-emitting part 20.

[0130] In some embodiments, the light-emitting component may be a light-emitting chip. Figure 16 This is a schematic diagram showing the connection between the light-emitting component (LED) and the driver backplane when the LED is a light-emitting chip. Figure 16 As shown, when the light-emitting component is used in a display substrate, the first conductive part 201 and the second conductive part 202 of the light-emitting component can be electrically connected to the driving backplate 300 of the display substrate.

[0131] In other embodiments, the light-emitting component can be a display substrate. Figure 17 This is a schematic diagram when the light-emitting component is a display substrate, such as... Figure 17As shown, the light-emitting component also includes a driving backplate 300, and a support portion 10 is disposed on the driving backplate 300. A plurality of light-emitting portions 20 are located on the side of the support portion 10 away from the driving backplate 300. The aforementioned first conductive portion 201 and second conductive portion 202 can be electrically connected to the driving backplate 300.

[0132] For example, the light-emitting component may include multiple light-emitting groups, each light-emitting group may include the first light-emitting part 21 and the second light-emitting part 22 described above, as well as a corresponding first color conversion part 31 and a second color conversion part 32. Alternatively, each light-emitting group may include a first light-emitting part 21, a second light-emitting part 22 and a third light-emitting part 23, as well as a corresponding first color conversion part 31, a second color conversion part 32 and an optical functional part 33.

[0133] The following is based on Figure 14 Taking the light-emitting component shown as an example, its manufacturing process will be introduced.

[0134] S1. Each light-emitting part 20 is formed on the support part 10.

[0135] S2. The first color conversion unit 31, the second color conversion unit 32, and the optical functional unit 33 are formed by the patterning process.

[0136] S3. Alternately deposit the fifth film layer 91 and the sixth film layer 92, and after forming multiple layers of the fifth film layer 91 and the sixth film layer 92, etch the multiple layers of the fifth film layer 91 and the multiple layers of the sixth film layer 92 to form a third filter layer 90 having a third opening K3, a fourth opening K4 and a seventh opening K7. The third opening K3 is disposed opposite to the surface of the second color conversion part 32 away from the support part 10, the fourth opening K4 is disposed opposite to the surface of the first color conversion part 31 away from the support part 10, and the seventh opening K7 is disposed opposite to the surface of the optical functional part 33 away from the support part 10.

[0137] S4. Alternately deposit the first film layer 71 and the second film layer 72, and after forming multiple layers of the first film layer 71 and multiple layers of the second film layer 72, etch the multiple layers of the first film layer 71 and multiple layers of the second film layer 72 to form a first filter layer 70 having a first opening K1 and a fifth opening K5. The first opening K1 is disposed opposite to the surface of the second color conversion part 32 away from the support part 10, and the fifth opening K5 is disposed opposite to the surface of the optical function part 33 away from the support part 10.

[0138] S5. Alternately deposit the third film layer 81 and the fourth film layer 82, and after forming multiple layers of the third film layer 81 and the fourth film layer 82, etch the multiple layers of the third film layer 81 and the multiple layers of the fourth film layer 82 to form a second filter layer 80 having a second opening K2 and a sixth opening K6. The second opening K2 is disposed opposite to the surface of the first color conversion part 31 away from the support part 10, and the sixth opening K6 is disposed opposite to the surface of the optical function part 33 away from the support part 10.

[0139] S6. Form a transparent layer 60, which includes a first transparent sublayer and a second transparent sublayer. The first transparent sublayer is disposed around the first color conversion part 31, the second color conversion part 32 and the optical functional part 33, and the second transparent sublayer is located on the side of the first color conversion part 31, the second color conversion part 32 and the optical functional part 33 away from the substrate. The first transparent sublayer and the second transparent sublayer can be formed in two separate steps.

[0140] S7, Form cover plate 100.

[0141] It should be noted that in the above preparation process, the first filter layer 70, the second filter layer 80 and the third filter layer 90 are all formed by first depositing the film and then etching. In some other embodiments, the first filter layer 70, the second filter layer 80 and the third filter layer 90 can also be formed by vapor deposition. When vapor deposition is used to form each filter layer, an FMM mask (fine metal mask) can be used to block the opening at the position to be formed.

[0142] It is understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of this disclosure, and this disclosure is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and substance of this disclosure, and these modifications and improvements are also considered to be within the scope of protection of this disclosure.

Claims

1. A light-emitting component, comprising: Load-bearing part; A first light-emitting part and a second light-emitting part are disposed on the carrier, and the first light-emitting part and the second light-emitting part are configured to emit blue light; A first color conversion unit and a second color conversion unit; the first color conversion unit is disposed around the first light-emitting unit and on the side of the first light-emitting unit away from the support unit, and is configured to convert blue light into red light; the second color conversion unit is disposed around the second light-emitting unit and on the side of the second light-emitting unit away from the support unit, and is configured to convert blue light into green light; A first filter layer is disposed around the first color conversion part and the second color conversion part. The first filter layer completely covers the surface of the first color conversion part away from the support part, and has a first opening on the surface of the second color conversion part away from the support part. The first filter layer is configured to transmit red light converted by the first color conversion part and reflect blue light emitted by the first light-emitting part and the second light-emitting part. A second filter layer is disposed around the first color conversion part and the second color conversion part. The second filter layer completely covers the surface of the second color conversion part away from the support part and has a second opening on the surface of the first color conversion part away from the support part. The second filter layer is configured to transmit green light converted by the second color conversion part and reflect blue light emitted by the first light-emitting part and the second light-emitting part.

2. The light-emitting component according to claim 1, wherein, The first filter layer includes multiple first film layers and multiple second film layers, with the first film layers and the second film layers being alternately arranged, and the refractive indices of the first film layers and the second film layers being different; The second filter layer includes multiple third films and multiple fourth films, with the third films and the fourth films alternately arranged, and the refractive indices of the third films and the fourth films being different. Among them, the first film layer, the second film layer, the third film layer, and the fourth film layer are all inorganic film layers.

3. The light-emitting component according to claim 2, wherein, The first and third films are made of Nb2O5, and the second and fourth films are made of SiO2.

4. The light-emitting component according to claim 2, wherein, The sum of the number of layers in the first film layer and the second film layer is greater than or equal to 11, and the sum of the number of layers in the third film layer and the fourth film layer is greater than or equal to 11; The thickness d1 of the first film layer satisfies The thickness d2 of the second film layer satisfies the following conditions: λ1 is between 400 and 480 nm; n1 is between 1.6 and 2.3; n2 is between 1.3 and 1.

5. The thickness d3 of the third film layer satisfies: The thickness d4 of the fourth film layer satisfies: λ3 is between 390 and 420 nm, n3 is between 1.6 and 2.3, and n4 is between 1.3 and 1.

5.

5. The light-emitting component according to claim 2, wherein, The first filter layer includes a first film layer group and a second film layer group. Both the first film layer group and the second film layer group include multiple alternating layers of first film layer and multiple layers of second film layer. The first film layer group has a transmittance of more than 90% for the red light converted by the first color conversion part and a reflectance of more than 90% for the blue light emitted by the first light-emitting part and the second light-emitting part. The second film layer has a transmittance of more than 90% for the red light converted by the first color conversion part, a reflectance of more than 90% for the green light converted by the second color conversion part, and a reflectance of more than 90% for the blue light emitted by the first light-emitting part and the second light-emitting part. The second filter layer has a transmittance of more than 90% for the green light converted by the second color conversion part and a reflectance of more than 90% for the blue light emitted by the first light-emitting part and the second light-emitting part.

6. The light-emitting component according to claim 2, wherein, The sum of the number of layers of the third film layer and the fourth film layer is greater than or equal to 11; The first filter layer includes a first film layer group and a second film layer group. Both the first film layer group and the second film layer group include alternating first film layers and second film layers. The sum of the number of first film layers and second film layers in the first film layer group is greater than or equal to 11, and the sum of the number of first film layers and second film layers in the second film layer group is greater than or equal to 11. In the first film layer group, the thickness of the first film layer satisfies d1. The thickness d2 of the second film layer satisfies the following: λ1 is between 400 and 480 nm, and n1 is between 1.6 and 2.

3. In the second film layer group, the thickness d1' of the first film layer satisfies: The thickness d2' of the second film layer satisfies the following conditions: λ2 is between 510 and 560 nm, and n2 is between 1.3 and 1.

5. The thickness d3 of the third film layer satisfies: The thickness d4 of the fourth film layer satisfies: λ3 is between 390 and 420 nm, n3 is between 1.6 and 2.3, and n4 is between 1.3 and 1.

5.

7. The light-emitting component according to any one of claims 1 to 4, wherein, The light-emitting component further includes a third filter layer; the third filter layer is disposed around the first color conversion part and the second color conversion part, the third filter layer has a third opening on the surface of the second color conversion part away from the support part, and the third filter layer has a fourth opening on the surface of the first color conversion part away from the support part; the orthographic projection of the third opening on the support part overlaps with the orthographic projection of the first opening on the support part, and the orthographic projection of the fourth opening on the support part overlaps with the orthographic projection of the second opening on the support part; The third filter layer is configured to reflect the red light converted by the first color conversion unit, the green light converted by the second color conversion unit, and the blue light emitted by the first light-emitting unit and the second light-emitting unit.

8. The light-emitting component according to claim 7, wherein, The sum of the thicknesses of the first filter layer, the second filter layer, and the third filter layer is less than 10 micrometers.

9. The light-emitting component according to claim 7, wherein, The center wavelength of the green light converted by the second color conversion unit is m0, and the light with a wavelength less than m0 in the green light converted by the second color conversion unit is the target green light; The first filter layer has a transmittance of 20% or more for the target green light; the second filter layer has a transmittance of 90% or more for the red light converted by the first color conversion unit.

10. The light-emitting component according to claim 7, wherein, The third filter layer includes multiple fifth layers and multiple sixth layers, with the fifth and sixth layers alternately arranged, and the refractive indices of the fifth and sixth layers being different. Both the fifth and sixth membrane layers are inorganic membrane layers.

11. The light-emitting component according to claim 10, wherein, The material of the fifth film layer is Nb2O5, and the material of the sixth film layer is SiO2.

12. The light-emitting component according to claim 10, wherein, The sum of the number of layers in the fifth and sixth films is between 10 and 40. The thicknesses of the fifth and sixth films are both between 20 and 200 nm.

13. The light-emitting component according to claim 7, wherein, Both the first filter layer and the second filter layer are located on the side of the third filter layer away from the support portion.

14. The light-emitting component according to any one of claims 1-6, wherein, The light-emitting component further includes a third light-emitting part, which is configured to emit blue light; the orthographic projection of either the first filter layer or the second filter layer on the carrier does not overlap with the orthographic projection of the third light-emitting part on the carrier.

15. The light-emitting component according to claim 14, wherein, The light-emitting component further includes an optical functional unit, which is disposed around the third light-emitting unit and located on the side of the third light-emitting unit away from the support unit, and is configured to maintain the color of the light emitted by the third light-emitting unit unchanged; Both the first filter layer and the second filter layer surround the optical functional part. The first filter layer has a fifth opening on the surface of the optical functional part away from the support part, and the second filter layer has a sixth opening on the surface of the optical functional part away from the support part.

16. The light-emitting component according to claim 7, wherein, The light-emitting component further includes a third light-emitting part, which is configured to emit blue light; the orthographic projection of any one of the first filter layer, the second filter layer and the third filter layer on the support portion does not overlap with the orthographic projection of the third light-emitting part on the support portion.

17. The light-emitting component according to claim 16, wherein, The light-emitting component further includes an optical functional unit, which is disposed around the third light-emitting unit and configured to maintain the blue light emitted by the third light-emitting unit unchanged. Each of the first filter layer, the second filter layer, and the third filter layer surrounds the optical functional part. The first filter layer has a fifth opening on the surface of the optical functional part away from the support part, the second filter layer has a sixth opening on the surface of the optical functional part away from the support part, and the third filter layer has a seventh opening on the surface of the optical functional part away from the support part.

18. The light-emitting component according to any one of claims 1-6, wherein, The light-emitting component is a light-emitting chip.

19. The light-emitting component according to any one of claims 1-6, wherein, The light-emitting component further includes a driving backplate, and the supporting part is disposed on the driving backplate. The first light-emitting part and the second light-emitting part are located on the side of the supporting part away from the driving backplate.

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