Light-emitting component and display panel

Abstract

The present application relates to the technical field of display. Disclosed are a light-emitting component and a display panel. The light-emitting component comprises a base substrate, a color conversion layer on a first surface of the base substrate, and a light-emitting unit, and the light-emitting component further comprises a shading structure for absorbing light. A light dimming part provided on at least one of the first surface and a second surface of the base substrate can change the direction of light propagation, so as to prevent light from forming an optical waveguide in the base substrate, and further avoid light leakage caused by emitting the light from an edge of the light-emitting component, thereby ensuring the display effect.

Description

Light-emitting components and display panels Technical Field

[0001] The present application relates to the field of display technology, and in particular to a light-emitting component and a display panel. Background Art

[0002] The display panel includes a display backplane and a plurality of light-emitting components connected to the display backplane, wherein the display backplane can provide driving signals for the light-emitting components to make the light-emitting components emit light, thereby realizing display.

[0003] Summary of the Invention

[0004] The present application provides a light-emitting component and a display panel, and the technical solutions are as follows:

[0005] In one aspect, a light emitting assembly is provided, comprising:

[0006] a base substrate having a first surface and a second surface;

[0007] a color conversion layer located on the first surface of the base substrate;

[0008] a light emitting unit located on a side of the color conversion layer away from the base substrate, wherein the light emitted by the light emitting unit is configured to pass through the color conversion layer and then be emitted from the second surface of the base substrate;

[0009] and a light-shielding structure, the light-shielding structure having a light-shielding area and a plurality of first hollow areas, wherein the orthographic projection of the first hollow areas on the base substrate at least partially overlaps with the light-emitting area of ​​the light-emitting unit and is used to allow light emitted by the light-emitting unit to pass through, and the light-shielding structure is used to absorb light irradiated to the light-shielding area;

[0010] At least one of the first surface and the second surface has a light modulating portion, and the light modulating portion is used to change the propagation direction of light.

[0011] Optionally, the light modulating unit includes: a light extraction grating;

[0012] The orthographic projection of the light extraction grating on the first substrate and the orthographic projection of the light shading area on the first substrate at least partially overlap. The light extraction grating is used to transmit the light emitted by the light emitting unit, and the light transmitted through the light extraction grating can be absorbed by the light shading structure.

[0013] Optionally, the light shielding structure is located between the first surface of the base substrate and the light emitting unit, and the light extraction grating is located between the first surface of the base substrate and the light shielding structure; the light modulating portion further includes: a reflective layer;

[0014] The reflective layer is located on the second surface of the base substrate, and the orthographic projection of the reflective layer on the base substrate and the orthographic projection of the shading area on the base substrate at least partially overlap. The reflective layer is used to reflect the light irradiated to the reflective layer to the light extraction grating.

[0015] Optionally, the light-shielding structure includes a first light-shielding portion located between the first surface of the base substrate and the light-emitting unit, and a second light-shielding portion located on the second surface of the second substrate, wherein the orthographic projection of the second light-shielding portion on the base substrate covers the orthographic projection of the first light-shielding portion on the base substrate;

[0016] The light extraction grating is located between the second surface of the base substrate and the second light shielding portion. The light emitted by the light emitting unit passes through the light extraction grating and is absorbed by the second light shielding portion.

[0017] Optionally, the light-emitting component includes a plurality of light-emitting units, the light emitted by the plurality of light-emitting units has the same color, and the colors of the light emitted by the plurality of light-emitting units after passing through the color conversion layer include: a first color, a second color, and a third color that are different from each other; and the light extraction grating includes:

[0018] a first grating, the first grating being configured to transmit light of the first color, wherein an orthographic projection of the first grating on the substrate surrounds a light-emitting area of ​​the light-emitting unit of the first color;

[0019] a second grating, the second grating being configured to transmit light of the second color, wherein an orthographic projection of the second grating on the substrate surrounds a light-emitting area of ​​the light-emitting unit of the second color;

[0020] and a third grating, the third grating being used for transmitting the light of the third color, wherein the orthographic projection of the third grating on the base substrate surrounds the light emitting area of ​​the light emitting unit of the third color.

[0021] Optionally, the colors of the light emitted by the plurality of light emitting units are all a third color; the light extraction grating further includes: a fourth grating;

[0022] The orthographic projection of the fourth grating on the base substrate surrounds the light-emitting areas of the plurality of light-emitting units, and the fourth grating is used to transmit the light of the third color.

[0023] Optionally, at least one of the first surface and the second surface has a groove structure;

[0024] The light modulating portion is located in the groove structure, and is used to reflect the light irradiated to the light modulating portion to the area where the orthographic projection of the light emitting area of ​​the light emitting unit on the base substrate is located, or the light modulating portion is used to absorb the light irradiated to the light modulating portion;

[0025] Wherein, the groove structure surrounds the light-emitting area of ​​the light-emitting unit.

[0026] Optionally, the light-emitting component includes a plurality of light-emitting units, the light emitted by the plurality of light-emitting units has the same color, and the colors of the light emitted by the plurality of light-emitting units after passing through the color conversion layer include: a first color, a second color, and a third color that are different from each other; and the groove structure includes:

[0027] a plurality of first annular grooves, each of the first annular grooves surrounding a light-emitting area of ​​the light-emitting unit;

[0028] and a second annular groove, wherein the second annular groove surrounds the light emitting areas of the plurality of light emitting units;

[0029] The light dimming unit includes:

[0030] a plurality of first dimming parts, each of which is located in one of the first annular grooves, and the material of the first dimming part is a reflective material or a light-absorbing material;

[0031] The second dimming part is located in the second annular groove, and the material of the second dimming part is a light absorbing material.

[0032] Optionally, the second annular groove includes: a plurality of sub-annular grooves, wherein the depth of the sub-annular groove is negatively correlated with the distance between the sub-annular groove and the light emitting unit;

[0033] The second dimming unit includes a plurality of sub-dimming units, and each of the sub-dimming units is located in one of the sub-annular grooves.

[0034] Optionally, the plurality of sub-annular grooves include: a plurality of first sub-annular grooves and a plurality of second sub-annular grooves;

[0035] The plurality of first sub-annular grooves are located on the first surface, and the plurality of second sub-annular grooves are located on the second surface, and the plurality of first sub-annular grooves and the plurality of second sub-annular grooves are staggered; wherein the sum of the depths of the first sub-annular grooves and the second sub-annular grooves is less than the thickness of the base substrate;

[0036] The second dimming unit includes a plurality of first sub-dimming units and a plurality of second sub-dimming units. Each of the first sub-dimming units is located in one of the first sub-annular grooves, and each of the second sub-dimming units is located in one of the second sub-annular grooves.

[0037] Optionally, the first annular groove and the second annular groove are both continuous grooves; or,

[0038] The first annular groove includes a plurality of first dot-shaped grooves, and the arrangement direction of the plurality of first dot-shaped grooves is annular;

[0039] The second annular groove includes a plurality of second dot-shaped grooves, and the arrangement direction of the plurality of second dot-shaped grooves is annular.

[0040] Optionally, the light emitting component further includes: a light absorbing portion, the light absorbing portion at least covers a side edge of the base substrate, and the material of the light absorbing portion is a light absorbing material.

[0041] Optionally, the light emitting component further comprises: a color filter layer located between the base substrate and the color conversion layer;

[0042] The color filter layer includes a plurality of color filter patterns, the color conversion layer includes a plurality of color conversion patterns and a plurality of light-transmitting patterns, and each of the plurality of color filter patterns corresponds to a target pattern among the plurality of color conversion patterns and the plurality of light-transmitting patterns;

[0043] The light-emitting assembly further includes: a retaining wall structure, the retaining wall structure having a plurality of second hollow areas, the plurality of second hollow areas corresponding to the plurality of first hollow areas one by one, and an orthographic projection of each second hollow area on the base substrate at least partially overlapping with an orthographic projection of a corresponding first hollow area on the base substrate;

[0044] Each of the color filter patterns is located in one of the first hollow areas, and the target pattern corresponding to the color filter pattern is located in a second hollow area corresponding to the first hollow area.

[0045] Optionally, the light-emitting unit includes: a first electrode, a second electrode, and a light-emitting layer electrically connected to the first electrode and the second electrode respectively; the light-emitting component further includes: a driving unit located on a side of the plurality of light-emitting units away from the base substrate;

[0046] The driving unit includes a third electrode, a fourth electrode and a driving circuit. The third electrode and the fourth electrode are both connected to the driving circuit. The third electrode is electrically connected to the first electrode, and the fourth electrode is electrically connected to the second electrode.

[0047] On the other hand, a display panel is provided, comprising a display backplane, and a plurality of light-emitting components as described in the above aspects arranged in an array and located on one side of the display backplane;

[0048] The display backplane is used to provide a driving signal for the light-emitting component to drive the light-emitting component to emit light. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0050] FIG1 is a partial cross-sectional view of a light-emitting component provided in an embodiment of the present application;

[0051] FIG2 is a schematic diagram of the light path of a light emitting component in the prior art;

[0052] FIG3 is a schematic diagram of a light path of a light emitting component provided in an embodiment of the present application;

[0053] FIG4 is a partial cross-sectional view of another light-emitting assembly provided in an embodiment of the present application;

[0054] FIG5 is a schematic diagram of the light path of another light-emitting component provided in an embodiment of the present application;

[0055] FIG6 is a top view of a light-emitting unit and a light extraction grating provided in an embodiment of the present application;

[0056] FIG7 is a partial cross-sectional view of another light-emitting assembly provided in an embodiment of the present application;

[0057] FIG8 is a top view of a light-emitting unit, a groove structure, and a light modulating portion provided in an embodiment of the present application;

[0058] FIG9 is a schematic diagram of a light path of another light emitting assembly provided in an embodiment of the present application;

[0059] FIG10 is a top view of another light-emitting unit, a groove structure, and a light modulating portion provided in an embodiment of the present application;

[0060] FIG11 is a partial cross-sectional view of another light-emitting assembly provided in an embodiment of the present application;

[0061] FIG12 is a top view of another light-emitting unit, a groove structure, and a light modulating portion provided in an embodiment of the present application;

[0062] FIG13 is a schematic diagram of the light path of another light emitting assembly provided in an embodiment of the present application;

[0063] FIG14 is a partial cross-sectional view of another light emitting assembly provided in an embodiment of the present application;

[0064] FIG15 is a schematic diagram of the light path of another light emitting assembly provided in an embodiment of the present application;

[0065] FIG16 is a partial cross-sectional view of another light-emitting assembly provided in an embodiment of the present application;

[0066] FIG17 is a schematic diagram of the light path of another light emitting assembly provided in an embodiment of the present application;

[0067] FIG18 is a partial cross-sectional view of a substrate provided in an embodiment of the present application;

[0068] FIG19 is a partial cross-sectional view of another substrate provided in an embodiment of the present application;

[0069] FIG20 is a partial cross-sectional view of another light-emitting assembly provided in an embodiment of the present application;

[0070] FIG21 is a partial cross-sectional view of a light-emitting unit provided in an embodiment of the present application;

[0071] FIG22 is a partial cross-sectional view of another light-emitting assembly provided in an embodiment of the present application;

[0072] FIG23 is a partial cross-sectional view of a display panel provided in an embodiment of the present application;

[0073] FIG24 is a top view of a display panel provided in an embodiment of the present application. DETAILED DESCRIPTION

[0074] In order to make the objectives, technical solutions and advantages of this application clearer, the implementation methods of this application will be further described in detail below with reference to the accompanying drawings.

[0075] In the related art, a light-emitting assembly includes a substrate, a light-emitting unit located on one side of the substrate, and a driving unit. The light-emitting unit and the driving unit are connected so that the driving unit provides a driving signal to the light-emitting unit, thereby driving the light-emitting unit to emit light.

[0076] However, the light emitted by the light emitting unit is easily totally reflected in the substrate to form a light waveguide. The existence of the light waveguide causes the light to be emitted from the edge of the light emitting component and leak, resulting in poor display effect.

[0077] In the prior art, light emitted from the light-emitting unit of the light-emitting component forms an optical waveguide after entering the substrate. Moreover, the existence of the optical waveguide causes light to be emitted from the edge of the light-emitting component and leak, resulting in poor display effect.

[0078] For example, the light-emitting component includes a base substrate, a color conversion layer located on one side of the base substrate, an adhesive layer, and a light-emitting unit. The light emitted by the light-emitting unit (such as blue light) forms an optical waveguide in the adhesive layer and enters the base substrate through the cutting path at the outer edge, forming blue light leakage. The light emitted by the light-emitting unit passes through the color conversion layer (which can be converted into red light or green light) and enters the base substrate and forms an optical waveguide in the base substrate, thereby generating red light leakage and green light leakage. Among them, the adhesive layer is a common film layer used to bond the light-emitting unit and the color conversion layer.

[0079] The conditions for forming an optical waveguide are: the substrate has two optical surfaces. When light propagates within the substrate and satisfies the conditions for total reflection, it can be totally reflected from the two optical surfaces. The total reflection effect of the two optical surfaces causes the light to be confined within the substrate and propagate in a specific direction.

[0080] FIG1 is a schematic structural diagram of a light emitting assembly 10 provided in an embodiment of the present application. Referring to FIG1 , the light emitting assembly 10 includes: a base substrate 101 , a color conversion layer 102 , a light emitting unit 103 and a light shielding structure 104 .

[0081] In the embodiment of the present application, the base substrate 101 has a first surface 101a and a second surface 101b. The color conversion layer 102 is located on the first surface 101a of the base substrate 101, and the light-emitting unit 103 is located on the side of the color conversion layer 102 away from the base substrate 101. Light emitted by the light-emitting unit 103 is designed to pass through the color conversion layer 102 and then be emitted from the second surface 101b of the base substrate 101. In other words, the first surface 101a of the base substrate 101 can serve as the supporting surface for the device, and the second surface 101b can serve as the light-emitting surface.

[0082] Referring to Figure 1 , the light-shielding structure 104 includes a light-shielding region and multiple first hollow regions. The orthographic projections of the first hollow regions on the base substrate 101 at least partially overlap with the light-emitting regions of the light-emitting units 103. These first hollow regions are used to allow light emitted by the light-emitting units 103 to pass through. Some of the light emitted by the light-emitting units 103 may strike the light-shielding regions of the light-shielding structure 104, which then absorb this light, preventing light leakage.

[0083] Furthermore, referring to FIG1 , at least one of the first surface 101a and the second surface 101b has a light modulator 105. Because the light modulator 105 disrupts the surface properties of the base substrate 101, light does not undergo multiple total reflections within the base substrate 101 to form an optical waveguide. Instead, the propagation direction of light is changed. In other words, by providing the light modulator 105 on at least one of the first surface 101a and the second surface 101b, the propagation direction of light can be changed.

[0084] Optionally, referring to FIG2 , when the light modulating unit 105 is not provided, the light will be reflected by the second surface 101b to the first surface 101a after being irradiated to the second surface 101b, and then reflected by the first surface 101a to the second surface 101b, and so on to form an optical waveguide, thereby generating crosstalk or light leakage. Among them, FIG2 only shows the blue light path and the green light path, and does not show the red light path (the red light path and the green light path are similar). Referring to FIG3 , when the light modulating unit 105 is provided, the light will be reflected by the second surface 101b to the first surface 101a after being irradiated to the second surface 101b, and the light originally reflected by the first surface 101a will not be reflected, but will be absorbed by the shading structure 104 after being emitted from the first surface 101a.

[0085] In the embodiment of the present application, since the light modulating unit 105 is provided, it is possible to prevent light from forming an optical waveguide within the base substrate 101, thereby preventing light from being emitted from the edge due to the existence of the optical waveguide, thereby avoiding light leakage and crosstalk, and ensuring the display effect.

[0086] In summary, embodiments of the present application provide a light-emitting assembly comprising a substrate, a color conversion layer and a light-emitting unit located on a first surface of the substrate, and a light-shielding structure for absorbing light. A light modulator disposed on at least one of the first and second surfaces of the substrate can alter the propagation direction of light, thereby preventing the formation of light waveguides within the substrate and, in turn, preventing light from escaping from the edges of the light-emitting assembly and leaking, thereby ensuring a good display effect.

[0087] As a first optional implementation, referring to FIG. 1 , it can be seen that the light modulating portion 105 may include a light extraction grating 1051. The orthographic projection of the light extraction grating 1051 on the base substrate 101 at least partially overlaps with the orthographic projection of the light shielding region on the base substrate 101. The light extraction grating 1051 is configured to transmit light emitted by the light-emitting unit 103, and the light transmitted through the light extraction grating 1051 can be absorbed by the light shielding structure 104.

[0088] The light modulating unit 105 is configured as a light extraction grating based on the principle of grating diffraction. A grating (with periodic characteristics) can cause light of different wavelengths to undergo corresponding regular changes in propagation direction when passing through it. The main function of the light extraction grating 1051 is to extract light of a specific wavelength. In the embodiments of the present application, the light modulating unit 105 includes the light extraction grating 1051 in the following two embodiments.

[0089] 1 , the light shielding structure 104 is located between the first surface 101a of the base substrate 101 and the light emitting unit 103 , and the light extraction grating 1051 is located between the first surface 101a of the base substrate 101 and the light shielding structure 104 . The light modulating unit 105 further includes a reflective layer 1052 .

[0090] The reflective layer 1052 is located on the second surface 101b of the base substrate 101, and the orthographic projection of the reflective layer 1052 on the base substrate 101 and the orthographic projection of the light-shielding region on the base substrate 101 at least partially overlap. The reflective layer 1052 is configured to reflect light incident on the reflective layer 1052 toward the light extraction grating 1051. Optionally, the reflective layer 1052 may be a distributed Bragg reflector (DBR).

[0091] The reflective layer 1052 provided on the second surface 101b of the base substrate 101 prevents light from being emitted directly from the light-shielding region and causing light leakage. Referring to Figure 3 , the reflective layer 1052 reflects light, allowing it to be directly extracted by the light extraction grating 1051 and absorbed by the light-shielding structure 104 on the side of the light extraction grating 1051 away from the base substrate 101. This prevents light from forming an optical waveguide within the base substrate 101 and also reduces edge light leakage.

[0092] Optionally, the reflective layer 1052 may include two materials with different refractive indices arranged in an overlapping manner. The thickness of each layer of material may be 1 / 4 of the wavelength of the light. For example, both materials may be organic materials, or one of the two materials may be an organic material and the other an inorganic material.

[0093] The organic material can be prepared by nanoimprinting, while the inorganic material can be prepared by exposure and etching using a high-precision exposure machine. Since organic materials are relatively simple to prepare and have greater toughness than inorganic materials, both materials are preferably organic. For example, the two materials are epoxy resin and acrylic resin.

[0094] In the second embodiment, referring to FIG4 , the light shielding structure 104 includes a first light shielding portion 1041 located between the light emitting units 103 on the first surface 101a of the base substrate 101, and a second light shielding portion 1042 located on the second surface 101b of the base substrate 101. The orthographic projection of the second light shielding portion 1042 on the base substrate 101 covers the orthographic projection of the first light shielding portion 1041 on the base substrate 101.

[0095] Optionally, the edge of the orthographic projection of the second light shielding portion 1042 on the base substrate 101 can extend beyond the edge of the orthographic projection of the first light shielding portion 1041 on the base substrate 101, for example, by 3 micrometers (μm) to 5 μm. This can better prevent light leakage caused by light emitted at abnormal angles. In addition, the thickness of the second light shielding portion 1042 can range from 0.8 μm to 1.2 μm.

[0096] In addition, the light extraction grating 1051 is located between the second surface 101 b of the base substrate 101 and the second light shielding portion 1042 . Light emitted from the light emitting unit 103 passes through the light extraction grating 1051 and is absorbed by the second light shielding portion 1042 .

[0097] Referring to Figure 5 , when light extraction grating 1051 is provided, light that strikes second surface 101b is not reflected by second surface 101b but is instead extracted by light extraction grating 1051 and absorbed by second light shielding portion 1042. This prevents crosstalk caused by light being emitted directly from the light shielding region, and also prevents light from being emitted from the edge of the substrate after forming an optical waveguide within the substrate 101, thereby ensuring a good display effect.

[0098] In the above-mentioned schemes 1 and 2, the light-emitting component 10 may include multiple light-emitting units 103. The colors of the light emitted by the multiple light-emitting units 103 are the same, and the colors of the light emitted by the multiple light-emitting units 103 after passing through the color conversion layer 102 include: a first color, a second color, and a third color. The first color, the second color, and the third color are different from each other. For example, the first color is red (red, R), the second color is green (green, G), and the third color is blue (blue, B). For example, the light emitted by the multiple light-emitting units 103 is all the third color (blue).

[0099] Since the multiple light-emitting units 103 included in the light-emitting component 10 can be converted into multiple different colors after passing through the color conversion layer 102, and the wavelengths of light of different colors are different, the light extraction grating 1051 needs to include different gratings to extract light of different wavelengths.

[0100] Optionally, referring to FIG6 , the light extraction grating 1051 includes a first grating a1, a second grating a2, and a third grating a3. The first grating a1 is configured to transmit light of a first color. The orthographic projection of the first grating a1 on the substrate 101 surrounds the light-emitting region of a first light-emitting unit 103a among the plurality of light-emitting units 103. The light emitted by the first light-emitting unit 103a, after passing through the color conversion layer 102, has the first color. The second grating a2 is configured to transmit light of a second color. The orthographic projection of the second grating a2 on the substrate 101 surrounds the light-emitting region of a second light-emitting unit 103b among the plurality of light-emitting units 103. The light emitted by the second light-emitting unit 103b, after passing through the color conversion layer 102, has the second color. The third grating a3 is configured to transmit light of a third color. The orthographic projection of the third grating a3 on the substrate 101 surrounds the light-emitting region of a third light-emitting unit 103a among the plurality of light-emitting units 103. The light emitted by the third light-emitting unit 103c, after passing through the color conversion layer 102, has the third color.

[0101] For example, the first grating a1 can be called a red light grating, the period of the red light grating can be 430 to 470, and the duty cycle is 0.5. The second grating a2 can be called a green light grating, the period of the green light grating can be 400 to 430, and the duty cycle is 0.5. The third grating a3 can be called a blue light grating, the period of the blue light grating can be 360 ​​to 390, and the duty cycle is 0.5. The grating period can refer to the number of grating slits set within a length range of 1 micron. The grating duty cycle refers to the ratio of the slit area to the non-slit area.

[0102] Referring to Figure 1 , light-emitting assembly 10 further includes an adhesive layer 106 positioned between color conversion layer 102 and multiple light-emitting units 103. Adhesive layer 106 serves to bond color conversion layer 102 and multiple light-emitting units 103 together. Adhesive layer 106 can be made of epoxy resin with a special adhesive, have a thickness ranging from 3 μm to 10 μm, and a transmittance greater than or equal to 90%.

[0103] Referring to Figure 6 , since the light emitted by the light-emitting unit 103 is a third color (blue, with a wavelength range of 450nm to 470nm), and the light emitted by the light-emitting unit 103 may be reflected multiple times within the adhesive layer 106, forming an optical waveguide, which may cause light to be emitted from the edge of the adhesive layer 106 and leak. Therefore, the light extraction grating 1051 may further include: a fourth grating a4, the orthographic projection of which on the base substrate 101 surrounds the light-emitting areas of the multiple light-emitting units 103, and the fourth grating a4 is used to transmit light of the third color. Optionally, the fourth grating a4 can be called a blue light grating.

[0104] That is, in the embodiment of the present application, a grating of a corresponding color may be set around each color of the light emitting unit 103 , and a blue light grating may be set around multiple light emitting units 103 .

[0105] Optionally, for the red and green gratings, the grating width can be 20 to 30 times the wavelength of the light to ensure that the light is completely extracted. For example, the width of the red grating is 20 to 30 times the wavelength of the red light to ensure that the red light is completely extracted. The width of the green grating is 20 to 30 times the wavelength of the green light to ensure that the green light is completely extracted.

[0106] As a second optional implementation, referring to FIG7 , at least one of the first surface 101a and the second surface 101b has a groove structure U. A light modulator 105 is located within the groove structure U. The light modulator 105 is configured to reflect light incident on the light modulator 105 toward the area corresponding to the orthographic projection of the light-emitting area of ​​the light-emitting unit 103 on the substrate 101. Alternatively, the light modulator 105 is configured to absorb light incident on the light modulator 105. The groove structure U surrounds the light-emitting area of ​​the light-emitting unit 103.

[0107] Since the light modulating portion 105 can reflect or absorb light and is located in the groove structure U on the surface of the base substrate 101 , it can change the surface characteristics of the base substrate 101 and thus change the propagation direction of light.

[0108] Alternatively, if the light modulating portion 105 is made of a light absorbing material, the light modulating portion 105 can be used to absorb light and thereby prevent light leakage. If the light modulating portion 105 is made of a reflective material, the light modulating portion 105 can be used to reflect light and thereby increase the forward light output of the light emitting component 10.

[0109] In an embodiment of the present application, a groove structure U is provided on the surface of the base substrate 101, and a light dimming part 105 is provided in the groove structure U. The following six schemes are used to illustrate this. In addition, in the following schemes, the light-emitting component 10 includes a plurality of light-emitting units 103. The colors of the light emitted by the plurality of light-emitting units 103 are the same, and the colors of the light emitted by the plurality of light-emitting units 103 after passing through the color conversion layer 102 include: a first color, a second color, and a third color. The first color, the second color, and the third color are different from each other. For example, the first color is red, the second color is green, and the third color is blue. For example, the light emitted by the plurality of light-emitting units 103 is all the third color (blue).

[0110] In the first embodiment, referring to Figures 7 and 8 , the groove structure U includes: multiple first annular grooves U1 and second annular grooves U2. Each first annular groove U1 surrounds the light-emitting area of ​​a light-emitting unit 103, and the second annular groove U2 surrounds the light-emitting areas of multiple light-emitting units 103. Accordingly, the light modulating unit 105 includes: multiple first modulating units 1053 and second modulating units 1054. Each first modulating unit 1053 is located within a first annular groove U1, and the material of the first modulating unit 1053 is a reflective material or a light-absorbing material. The second modulating unit 1054 is located within the second annular groove U2, and the material of the second modulating unit 1054 is a light-absorbing material.

[0111] For the area surrounding the light-emitting area of ​​each light-emitting unit 103, if the material of the first light-adjusting unit 1053 is a reflective material, the reflective material can reflect light to the area where the orthographic projection of the light-emitting area of ​​the pixel unit is located on the base substrate 101. If the material of the first light-adjusting unit 1053 is a light-absorbing material (such as a black material), the light-absorbing material can directly absorb light, preventing light leakage and crosstalk.

[0112] Alternatively, the reflective material may be a scattering resin material. When light strikes the scattering material, it is scattered by the material and emitted. Although the reflective material solution has a higher optical efficiency than the light-absorbing material solution, the reflective material solution may cause light to enter the base substrate 101, resulting in a certain risk of light leakage.

[0113] For the areas surrounding the light-emitting areas of the multiple light-emitting units 103, since these areas are relatively far from the light-emitting areas of the light-emitting units 103, if the material of the second dimming unit 1054 is a reflective material, not only will the amount of light emitted in the forward direction not be increased, but the light may also be reflected multiple times within the base substrate 101, forming an optical waveguide. Therefore, for the areas surrounding the light-emitting areas of the multiple light-emitting units 103, the material of the second dimming unit 1054 can be a light-absorbing material, which directly absorbs the light and prevents light leakage.

[0114] In the embodiment of the present application, referring to FIG7 , the plurality of first annular grooves U1 and the second annular grooves U2 included in the groove structure U are both located on the second surface 101b of the base substrate 101. Of course, the plurality of first annular grooves U1 and the second annular grooves U2 included in the groove structure U may also be located on the first surface 101a of the base substrate 101. This embodiment of the present application is not limited to this.

[0115] For solution one, referring to Figure 9 , the material of the first dimming unit 1053 is a reflective material, and the material of the second dimming unit 1054 is a light-absorbing material. Light irradiated by the first dimming unit 1053 can be reflected by the first dimming unit 1053, increasing the amount of light emitted in the forward direction. Light irradiated by the second dimming unit 1054 can be absorbed by the second dimming unit 1054. This prevents light from being emitted directly from the location of the light-shielding area, causing light leakage. It also prevents light from being emitted from the edge of the substrate 101 after forming an optical waveguide, thus ensuring the display effect.

[0116] 7 and 8 , it can be seen that the first annular groove U1 and the second annular groove U2 are both continuous grooves. Accordingly, the first dimming unit 1053 and the second dimming unit 1054 can both be continuous dimming units.

[0117] In the second embodiment, referring to FIG10 , the groove structure U includes: a first annular groove U1 including a plurality of first dot-shaped grooves U1a, which are arranged in a circular direction, i.e., surrounding the light-emitting area of ​​the first light-emitting unit 103. A second annular groove U2 includes a plurality of second dot-shaped grooves U2a, which are arranged in a circular direction, i.e., surrounding the light-emitting area of ​​the plurality of light-emitting units 103.

[0118] Accordingly, the first dimming unit 1053 includes a plurality of first dot-shaped dimming units, each of which is located within a first dot-shaped recess U1a. The second dimming unit 1054 includes a plurality of second dot-shaped dimming units, each of which is located within a second dot-shaped recess U2a. Furthermore, for a description of the materials for the first dimming unit 1053 and the second dimming unit 1054, please refer to the aforementioned solution 1 and will not be further elaborated herein.

[0119] The first dot-shaped grooves U1a and the second dot-shaped grooves U2a have a size range of 6 μm to 15 μm, and a pitch range of 3 μm to 5 μm. Furthermore, the depth of the first dot-shaped grooves U1a and the second dot-shaped grooves U2a can be 60% to 80% of the thickness of the base substrate 101. For example, if the thickness of the base substrate 101 is 0.5 mm (millimeter), the depth of the first dot-shaped grooves U1a and the second dot-shaped grooves U2a can be 0.3 mm.

[0120] Optionally, referring to FIG10 , the projections of the first dot-shaped groove U1a and the second dot-shaped groove U2a may be in the shape of a square, or other shapes such as a circle, a hexagon, or a triangle.

[0121] Solution three, referring to Figures 11 and 12, the groove structure U includes: a plurality of first annular grooves U1 and a second annular groove U2. Each first annular groove U1 surrounds the light-emitting area of ​​a light-emitting unit 103, and the second annular groove U2 includes a plurality of sub-annular grooves (U21, U22 and U23), and the depth of the sub-annular groove is negatively correlated with the distance between the sub-annular groove and the light-emitting unit 103. In other words, the closer the sub-annular groove is to the light-emitting unit 103, the deeper the depth is, and the farther away from the light-emitting unit 103, the shallower the depth is.

[0122] For example, referring to FIG11 , the second annular groove U2 includes: a first sub-annular groove U21, a second sub-annular groove U22, and a third sub-annular groove U23, which are sequentially arranged in a direction away from the light-emitting unit 103. The depth of the first sub-annular groove U21 is greater than the depth of the second sub-annular groove U22, and the depth of the second sub-annular groove U22 is greater than the depth of the third sub-annular groove U23. Of course, the second annular groove U2 may also include a larger number of sub-annular grooves, and the present embodiment does not limit the number of sub-annular grooves included in the second annular groove U2.

[0123] Correspondingly, the light dimming unit 105 includes: a plurality of first dimming units 1053 and a second dimming unit 1054. Each first dimming unit 1053 is located in a first annular groove U1, and the material of the first dimming unit 1053 is a reflective material or a light-absorbing material. The second dimming unit 1054 includes a plurality of sub-dimming units (not marked in the figure), each of which is located in a sub-annular groove, and the material of each sub-dimming unit is a light-absorbing material. In addition, for the relevant description of the materials of the first dimming unit 1053 and the second dimming unit 1054, please refer to the above-mentioned solution one, and the embodiments of the present application will not be repeated here.

[0124] It should be noted that the sub-annular groove in Scheme 3 can be a continuous groove, or it can also include a plurality of dot-shaped grooves. For Scheme 3, referring to Figure 13, take the material of the first dimming part 1053 as a reflective material and the material of the second dimming part 1054 as an absorbing material as an example. After the light is irradiated to the first dimming part 1053, it can be reflected by the first dimming part 1053 to increase the amount of forward light output, and after the light is irradiated to the second dimming part 1054, it can be absorbed by the second dimming part 1054. In this way, it can be avoided that the light is directly emitted from the position where the shading area is located, causing light leakage, and it can also be avoided that the light is emitted from the edge position after forming an optical waveguide in the base substrate 101, causing light leakage, thereby ensuring the display effect.

[0125] In the fourth embodiment, referring to FIG14 , the groove structure U includes a plurality of first annular grooves U1 and a second annular groove U2. Each first annular groove U1 surrounds the light-emitting area of ​​a light-emitting unit 103. The second annular groove U2 includes a plurality of sub-annular grooves. The plurality of sub-annular grooves include a plurality of fourth sub-annular grooves U24 and a plurality of fifth sub-annular grooves U25.

[0126] A plurality of fourth sub-annular grooves U24 are located on the first surface 101a, and a plurality of fifth sub-annular grooves U25 are located on the second surface 101b. The plurality of fourth sub-annular grooves U24 and the plurality of fifth sub-annular grooves U25 are staggered so as to absorb light at different positions. Moreover, the sum of the depth of the fourth sub-annular groove U24 and the depth of the fifth sub-annular groove U25 is less than the thickness of the base substrate 101. This can avoid excessive impact on the strength of the base substrate 101 due to the provision of the grooves. For example, the sum of the depth of the fourth sub-annular groove U24 and the fifth sub-annular groove U25 is equal to 70% of the thickness of the base substrate 101.

[0127] Correspondingly, the light dimming section 105 includes: a plurality of first dimming sections 1053 and a second dimming section 1054. Each first dimming section 1053 is located in a first annular groove U1, and the material of the first dimming section 1053 is a reflective material or a light-absorbing material. The second dimming section 1054 includes a plurality of first sub-dimming sections and a plurality of second sub-dimming sections (not marked in the figure). Each first sub-dimming section is located in a fourth sub-annular groove U24, and each second sub-dimming section is located in a fifth sub-annular groove U25. The material of each sub-dimming section is a light-absorbing material. In addition, for the relevant description of the materials of the first dimming section 1053 and the second dimming section 1054, please refer to the above-mentioned scheme one, and the embodiments of the present application will not be repeated here.

[0128] It should be noted that the fourth sub-annular groove U24 and the fifth sub-annular groove U25 in Scheme 4 can be continuous grooves, or can also include multiple dot-shaped grooves. For Scheme 4, referring to Figure 15, take the material of the first dimming part 1053 as a reflective material and the material of the second dimming part 1054 as an absorbing material as an example. After the light is irradiated to the first dimming part 1053, it can be reflected by the first dimming part 1053 to increase the amount of forward light output, and after the light is irradiated to the second dimming part 1054, it can be absorbed by the second dimming part 1054. In this way, it can be avoided that the light is directly emitted from the position where the shading area is located, causing light leakage, and it can also be avoided that the light is emitted from the edge position after forming an optical waveguide in the base substrate 101, causing light leakage, thereby ensuring the display effect.

[0129] In the fifth embodiment, referring to FIG16 , the groove structure U includes a plurality of first annular grooves U1. Each first annular groove U1 surrounds the light-emitting area of ​​a light-emitting unit 103. Accordingly, the light modulator 105 includes a plurality of first modulators 1053, each located within a first annular groove U1. The first modulators 1053 are made of a reflective or light-absorbing material.

[0130] The first annular groove U1 may be a continuous groove. Accordingly, the first dimming portion 1053 may be a continuous dimming portion. Alternatively, the first annular groove U1 includes a plurality of first dot-shaped grooves U1a, and the arrangement direction of the plurality of first dot-shaped grooves U1a is annular.

[0131] In this embodiment, referring to FIG16 , the light-emitting assembly 10 further includes a light-absorbing portion 107. This light-absorbing portion 107 covers at least the side edges of the base substrate 101 and is made of a light-absorbing material (e.g., a black material). Furthermore, referring to FIG16 , in addition to covering the side edges of the base substrate 101, the light-absorbing portion 107 may have one end located on the first surface 101a of the base substrate 101 and the other end located on the second surface 101b of the base substrate 101.

[0132] The light absorbing portion 107 may be prepared by spraying a side adhesive material, and the thickness of the light absorbing portion 107 may range from 0.8 μm to 1 μm.

[0133] For Solution 5, referring to Figure 17 , we take the example of a reflective material for the first dimming unit 1053 and a light-absorbing material for the second dimming unit 1054. Light irradiated by the first dimming unit 1053 can be reflected by the first dimming unit 1053, increasing the amount of light emitted in the forward direction. Furthermore, light irradiated by the second dimming unit 1054 can be absorbed by the second dimming unit 1054. This prevents light from being emitted directly from the light-shielding area, causing light leakage. It also prevents light from being emitted from the edge of the substrate 101 after forming an optical waveguide, thus ensuring a good display effect.

[0134] In this fifth solution, the groove structure may not include the second annular groove U2 surrounding the light-emitting area of ​​the multiple light-emitting units 103, and the corresponding light modulating portion 105 may not include the second modulating portion 1054. In this case, the light absorbing portion 107 can absorb the light in the peripheral area of ​​the light-emitting area of ​​the multiple light-emitting units 103 to prevent light leakage. In addition, the groove structure may also include the second annular groove U2 surrounding the light-emitting area of ​​the multiple light-emitting units 103, and the corresponding light modulating portion also includes the second modulating portion 1054. In this case, the light absorbing portion 107 and the second modulating portion 1054 can work together to absorb the light in the peripheral area of ​​the light-emitting area of ​​the multiple light-emitting units 103.

[0135] In the above-mentioned second implementation method, the formation of the groove structure U can have the following two methods: referring to Figure 18, it is formed by laser etching, and the side wall of the formed groove is perpendicular to the surface of the base substrate 101; referring to Figure 19, it is formed by wet etching, and the side wall of the formed groove is an arc-shaped side wall.

[0136] Optionally, in order to achieve a certain effect of the light modulating portion, the total area of ​​the bottom and sidewalls of the groove structure (i.e., the surface area of ​​the groove structure) needs to be sufficiently large. For example, if the width of the groove structure U is small, the depth of the groove structure U can be made deeper; if the width of the groove structure U is large, the depth of the groove structure U can be made shallower.

[0137] For example, if the width of the groove structure U ranges from 20 μm to 30 μm, the depth can be reduced to 5 μm to 10 μm. This is because the damage to the surface of the base substrate 101 changes the propagation of light, and the width of the groove structure U is wide enough to accommodate more than 30 reflected light rays, which is sufficient to absorb all the light.

[0138] For the two schemes in the first implementation and the six schemes in the second implementation, referring to Figures 1 to 5, 7, 9, 11 and 13 to 17, the light-emitting component 10 also includes: a color filter layer 108 located between the base substrate 101 and the color conversion layer 102.

[0139] The color filter layer 108 includes a plurality of color filter patterns 1081, and the color conversion layer 102 includes a plurality of color conversion patterns 1021 and a plurality of light-transmitting patterns (the light-transmitting patterns are not shown). Each color filter pattern 1081 corresponds to a target pattern in the plurality of color conversion patterns 1021 and the plurality of light-transmitting patterns. The "correspondence" may refer to color correspondence.

[0140] For example, the multiple color filter patterns 1081 include a red color filter pattern, a green color filter pattern, and a blue color filter pattern. The multiple color conversion patterns 1021 include a red color conversion pattern and a green color conversion pattern. The red color filter pattern corresponds to the red color conversion pattern, the green color filter pattern corresponds to the green color conversion pattern, and the blue color filter pattern corresponds to the light-transmitting pattern.

[0141] The light-emitting assembly 10 further includes a retaining wall structure 109. The retaining wall structure 109 has a plurality of second hollow regions, each corresponding to a plurality of first hollow regions. The orthographic projection of each second hollow region on the base substrate 101 at least partially overlaps with the orthographic projection of the corresponding first hollow region on the base substrate 101.

[0142] Each color filter pattern 1081 is located in a first hollow area, and the target pattern corresponding to the color filter pattern 1081 is located in a second hollow area corresponding to the first hollow area. The red color filter pattern and the red color conversion pattern are located in the corresponding first hollow area and the second hollow area, respectively. The green color filter pattern and the green color conversion pattern are located in the corresponding first hollow area and the second hollow area, respectively. The green color filter pattern and the light-transmitting pattern are located in the corresponding first hollow area and the second hollow area, respectively.

[0143] For solution one in the first implementation and the six solutions in the second implementation, the shading structure 104 can serve as a black matrix (BM) for accommodating the color filter pattern 1081. For solution two in the first implementation, the first shading portion 1041 included in the shading structure 104 can serve as a black matrix for accommodating the color filter pattern 1081. The thickness of the black matrix ranges from 1.2 μm to 2 μm. Among them, the black matrix may be damaged by the subsequent cutting process, resulting in a small amount of peeling at the edge of the base substrate 101, which is one of the reasons why light may form an optical waveguide in the base substrate 101.

[0144] The thickness of the color filter pattern 1081 ranges from 1.5 μm to 2 μm. The red and green color filter patterns primarily filter blue light that is not converted by the color conversion pattern 1021 of the color conversion layer 102 and correct the light converted by the color conversion pattern 1021 to improve the color gamut. The blue color filter pattern primarily corrects light after passing through the light-transmitting pattern to improve the color gamut.

[0145] The thickness of the retaining wall structure 109 ranges from 5 μm to 15 μm. The retaining wall structure 109 can be made of a resin material with low surface energy (e.g., fluorinated acrylic or epoxy resin). To block light, scattering particles such as SiO2 (silicon oxide) or TiO2 (titanium oxide) can be added to the retaining wall structure 109. Alternatively, the retaining wall structure 109 can be dyed black.

[0146] The primary function of the color conversion pattern 1021 is to convert light emitted by the light-emitting layer 1033 of the light-emitting unit 103. The material of the color conversion pattern 1021 can be a cadmium-based material such as cadmium selenide and cadmium sulfide, or a cadmium-free material such as InP (indium phosphide), perovskite, and carbon nanopowder. The thickness of the color conversion pattern 1021 ranges from 5 μm to 15 μm. The color conversion pattern 1021 is in the form of an adhesive with a solids content ranging from 5% to 30%.

[0147] 20 , the light emitting assembly 10 further includes an encapsulation layer 110 located on a side of the retaining wall structure 109 away from the base substrate 101 . The encapsulation layer 110 can be used to encapsulate the color conversion layer 102 and the color filter layer 108 .

[0148] The encapsulation layer 110 can adopt pure inorganic encapsulation, or adopt an organic and inorganic hybrid encapsulation method. If the encapsulation layer 110 adopts inorganic encapsulation, the encapsulation layer 110 may include three or five layers of inorganic material layers, and the material of each inorganic material layer may be SiNX (silicon nitride) or SiO2 (silicon oxide). The thickness of each inorganic layer ranges from 100nm (nanometer) to 500nm. If the encapsulation layer 110 adopts an organic and inorganic hybrid encapsulation method, the encapsulation layer 110 may be a sandwich structure of an inorganic material layer (thickness of 1000nm), an organic material layer (thickness range of 3μm to 10μm) and an inorganic material layer (thickness of 100nm).

[0149] In the embodiment of the present application, the light-emitting unit 103 may be a light-emitting unit 103 with a flip-chip structure. Referring to FIG21 , the light-emitting unit 103 includes a buffer layer 1031, a first doped layer 1032, a light-emitting layer 1033, a second doped layer 1034, a conductive layer 1035, an insulating layer 1036, a first electrode 1037, and a second electrode 1038. The first doped layer 1032 has a first target region b1 and a second target region b2, and the light-emitting layer 1033 and the second doped layer 1034 are stacked on the first target region b1 and the first doped layer 1032. The insulating layer 1036 is located on the side of the second doped layer 1034 away from the substrate. The insulating layer 1036 has a first via and a second via. The first via is used to expose a portion of the second target region b2, and the second via is used to expose a portion of the conductive layer 1035. The first electrode 1037 included in the light emitting unit 103 is connected to the second target region b2 of the first doping layer 1032 through a first via hole, and the second electrode 1038 included in the light emitting unit 103 is connected to the conductive layer 1035 through a second via hole. The first electrode 1037 and the second electrode 1038 can be used to introduce signals to achieve light emission.

[0150] The light-emitting region of the light-emitting unit 103 may be the region between the first electrode 1037 and the second electrode 1038. Furthermore, the orthographic projection of the light-emitting region on the base substrate 101 covers the orthographic projection of the color conversion pattern 1021 on the base substrate 101 and covers the orthographic projection of the color filter pattern 1081 on the base substrate 101.

[0151] Optionally, the doping type of the first doping layer 1032 is different from the doping type of the second doping layer 1034. For example, the first doping layer 1032 is an N-type doping layer, and the second doping layer 1034 is a P-type doping layer. The first doping layer 1032 may include N-type doped gallium nitride (GaN), and the first doping layer 1032 is denoted as N-GaN. The second doping layer 1034 may include P-type doped gallium nitride (GaN), and the second doping layer 1034 is denoted as P-GaN. In addition, the material of the buffer layer 1031 may be undoped gallium nitride (GaN). The insulating layer 1036 may be a passivation layer (PVX).

[0152] 20 and 21 , when the light-emitting component 10 includes a plurality of light-emitting units 103 , the buffer layer 1031 and the first doping layer 1032 of the plurality of light-emitting units 103 may be a common doping layer, and accordingly, the first electrode 1037 connected to the first doping layer 1032 may be a common electrode (the electrode may be referred to as a cathode).

[0153] 20 , the light emitting assembly 10 further includes a dam structure 111 . The dam structure 111 may be located around the buffer layer 1031 and the first doping layer 1032 of the plurality of light emitting units 103 to protect the light emitting units 103 .

[0154] FIG20 also shows a temporary substrate and a temporary bonding adhesive. These are intermediate film layers required during the fabrication of the light-emitting assembly 10 and are not present in the final product. For example, the temporary substrate and the temporary bonding adhesive are removed before bonding the light-emitting unit 103 to the driving unit 112.

[0155] In the embodiment of the present application, referring to FIG. 22 , the light-emitting assembly 10 further includes a driving unit 112 located on a side of the plurality of light-emitting units 103 away from the substrate 101. The driving unit 112 includes a third electrode 1121, a fourth electrode 1122, and a driving circuit 1123. The third electrode 1121 and the fourth electrode 1122 are both electrically connected to the driving circuit 1123. The third electrode 1121 is electrically connected to the first electrode 1037, and the fourth electrode 1122 is electrically connected to the second electrode 1038.

[0156] Referring to Figure 22, the drive unit 112 also includes a substrate 1124, a connection structure 1125, and a pin 1126. The material of the substrate 1124 can be polyimide (PI), and the substrate 1124 can be referred to as a PI substrate. The substrate 1124 has a connection via, and the connection structure 1125 is located within the connection via. Furthermore, the drive circuit 1123 is located on one side of the substrate, and the pin 1126 is located on the side of the substrate away from the drive circuit 1123, and the pin 1126 is in contact with the connection structure 1125. The pin 1126 and the drive circuit 1123 are connected via the connection structure 1125, so that the pin 1126 transmits a drive signal to the drive circuit 1123 through the connection structure 1125.

[0157] In an embodiment of the present application, the driving circuit 1123 may include multiple thin-film transistors and at least one storage capacitor. Optionally, the driving circuit 1123 may include seven thin-film transistors and one storage capacitor, that is, the driving circuit 1123 is a 7T1C driving circuit. Alternatively, the driving circuit 1123 may include other numbers of thin-film transistors and other numbers of storage capacitors. The embodiment of the present application does not limit the number of thin-film transistors included in the driving circuit 1123, nor the number of storage capacitors included.

[0158] Each thin film transistor includes a gate, a source, and a drain. The driving circuit 1123 includes multiple thin film transistors that are interconnected to achieve the function of driving the light emitting unit 103 to emit light.

[0159] Optionally, the plurality of thin film transistors include at least a data writing transistor, the source of which is connected to a data line of a display backplane in the display panel. The data line can transmit a data driving signal to the driving circuit 1123 through the data writing transistor.

[0160] In an embodiment of the present application, the data writing transistor is connected to the third electrode 1121 of the driving unit 112 through other thin film transistors in the driving circuit 1123, so that the data line included in the display backplane in the display panel transmits the data driving signal to the second electrode 1038 of the light-emitting unit 103 through the pin 1126, the connecting structure 1125, the driving circuit 1123, and the fourth electrode 1122 in sequence.

[0161] It should be noted that in order for the driving unit 112 to drive the light-emitting unit 103 to emit light, in addition to providing a data driving signal to the second electrode 1038 of the light-emitting unit 103, a power signal (e.g., a VSS signal) must also be provided to the first electrode 1037 of the light-emitting unit 103. Optionally, the display backplane can provide the same power signal to the multiple light-emitting components 10 included in the display panel, that is, the multiple light-emitting components 10 can share the same first electrode 1037.

[0162] 20 , the driver circuit 1123 includes a buffer layer (buffer+barrier) m1, an active layer (poly) m2, a first gate insulator (GI) m3, a first gate layer (gate) m4, a second gate insulator m5, a second gate layer (not shown), an interlayer dielectric (ILD) m6, a source / drain layer m7, and a planarization layer (PLN) m8, which are stacked in sequence on one side of a substrate 1124. The third electrode 1121 and the fourth electrode 1122 included in the driver unit 112 are located on the side of the planarization layer m8 away from the substrate.

[0163] The active layer m2 includes multiple active patterns corresponding to multiple thin film transistors, each of which includes a source region, a drain region, and a channel region. The source and drain of the thin film transistor are located in the source-drain layer, and the source of the thin film transistor is connected to the source region, and the drain is connected to the drain region.

[0164] The first gate layer m4 includes a plurality of gate patterns corresponding to a plurality of thin film transistors. The channel region is an overlapping region of an orthographic projection of the gate pattern on the substrate and an orthographic projection of the active pattern on the substrate.

[0165] Referring to Figure 20 , the first gate layer m4 also includes a gate connection portion m41 connected to the connection structure 1125. This gate connection portion m41 is used to connect to the connection structure 1125 and the source of the data write transistor. To connect the connection structure 1125 and the gate connection portion m41, connection vias can also be provided in the buffer layer m1 and the first gate insulating layer m3. Furthermore, the connection structure 1125 is located not only within the connection via in the substrate 1024, but also within the connection vias in the buffer layer m1 and the first gate insulating layer m3.

[0166] In summary, embodiments of the present application provide a light-emitting assembly comprising a substrate, a color conversion layer and a light-emitting unit located on a first surface of the substrate, and a light-shielding structure for absorbing light. A light modulator disposed on at least one of the first and second surfaces of the substrate can alter the propagation direction of light, thereby preventing the formation of light waveguides within the substrate and, in turn, preventing light from escaping from the edges of the light-emitting assembly and leaking, thereby ensuring a good display effect.

[0167] FIG23 is a schematic diagram of the structure of a display panel provided in an embodiment of the present application. Referring to FIG23 , the display panel 00 includes a display backplane 20 and a plurality of light-emitting components 10 .

[0168] 24 , multiple light-emitting components 10 are arranged in an array in the display area 00a of the display panel 00. The display backplane 20 is used to provide a driving signal to the driving unit 112 in the light-emitting component 10, so that the driving unit 112 drives the light-emitting unit 103 to emit light.

[0169] Since the display panel can have substantially the same technical effects as the light-emitting assembly described in the previous embodiment, the technical effects of the display panel will not be repeatedly described here for the purpose of brevity.

[0170] The terms used in the embodiments of this application are only used to explain the embodiments of this application and are not intended to limit this application. Unless otherwise defined, the technical terms or scientific terms used in the embodiments of this application should have the common meaning understood by people with ordinary skills in the field to which this application belongs.

[0171] The terms used in the embodiments of this application are intended solely to illustrate the embodiments of this application and are not intended to limit this application. Unless otherwise defined, technical or scientific terms used in the embodiments of this application should have the same ordinary meaning as those understood by persons of ordinary skill in the art to which this application belongs. The terms "first," "second," "third," and similar terms used in this patent specification and claims do not denote any order, quantity, or importance, but are simply used to distinguish between different components. Similarly, terms such as "a" or "an" do not denote a limitation of quantity, but rather denote the presence of at least one. Terms such as "include" or "comprising" and similar terms mean that the elements or objects listed before "include" or "comprising" include the elements or objects listed after "include" or "comprising," and their equivalents, and do not exclude other elements or objects. Terms such as "connected" or "connected" are not limited to physical or mechanical connections but may include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used solely to indicate relative positions. When the absolute position of the described objects changes, the relative positions may also change accordingly.

[0172] The above description is merely an optional embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A light emitting component, characterized in that: The light emitting component comprises: a substrate substrate having a first surface and a second surface; a color conversion layer located on the first surface of the base substrate; a light emitting unit located on a side of the color conversion layer away from the base substrate, wherein the light emitted by the light emitting unit is used to pass through the color conversion layer and then be emitted from the second surface of the base substrate; and a shading structure, the shading structure having a shading area and a plurality of first hollow areas, the orthographic projection of the first hollow area on the base substrate at least partially overlaps with the light emitting area of ​​the light emitting unit and is used for allowing the light emitted by the light emitting unit to pass through, and the shading structure is used for absorbing the light irradiated to the shading area; At least one of the first surface and the second surface has a light modulating portion, and the light modulating portion is used to change the propagation direction of the light.

2. The light emitting assembly according to claim 1, characterized in that: The light modulating unit comprises: a light extracting grating; The orthographic projection of the light extraction grating on the first substrate and the orthographic projection of the light shielding area on the first substrate at least partially overlap, the light extraction grating is used to transmit the light emitted by the light emitting unit, and the light transmitted from the light extraction grating can be absorbed by the light shielding structure.

3. The light emitting assembly according to claim 2, characterized in that: The light shielding structure is located between the first surface of the base substrate and the light emitting unit, and the light extraction grating is located between the first surface of the base substrate and the light shielding structure; The light modulating unit further includes: a reflective layer; The reflective layer is located on the second surface of the base substrate, and the orthographic projection of the reflective layer on the base substrate and the orthographic projection of the shading area on the base substrate at least partially overlap, and the reflective layer is used to reflect the light irradiated to the reflective layer to the light extraction grating.

4. The light emitting assembly according to claim 2, characterized in that: The light shielding structure comprises a first light shielding portion located between the first surface of the base substrate and the light emitting unit, and a second light shielding portion located on the second surface of the second substrate, wherein the orthographic projection of the second light shielding portion on the base substrate covers the orthographic projection of the first light shielding portion on the base substrate; The light extraction grating is located between the second surface of the base substrate and the second light shielding portion, and the light emitted by the light emitting unit is absorbed by the second light shielding portion after passing through the light extraction grating.

5. The light emitting assembly according to any one of claims 2 to 4, characterized in that: The light-emitting component includes a plurality of light-emitting units, the light emitted by the plurality of light-emitting units has the same color, and the color of the light emitted by the plurality of light-emitting units after passing through the color conversion layer includes: a first color, a second color and a third color that are different from each other; the light extraction grating includes: a first grating, the first grating being used to transmit light of the first color, the orthographic projection of the first grating on the substrate surrounding a light-emitting area of ​​a first light-emitting unit among the plurality of light-emitting units, and the color of the light emitted by the first light-emitting unit after passing through the color conversion layer is the first color; a second grating, the second grating being used to transmit light of the second color, the orthographic projection of the second grating on the substrate surrounding a light-emitting area of ​​a second light-emitting unit among the plurality of light-emitting units, and the color of the light emitted by the second light-emitting unit after passing through the color conversion layer is the second color; and a third grating, the third grating being used to transmit the light of the third color, the orthographic projection of the third grating on the substrate surrounding the light emitting area of ​​the third light emitting unit among the plurality of light emitting units, the color of the light emitted by the third light emitting unit after passing through the color conversion layer is the third color.

6. The light emitting assembly according to claim 5, characterized in that: The colors of the light emitted by the plurality of light-emitting units are all the third color; the light extraction grating further includes: a fourth grating; The orthographic projection of the fourth grating on the base substrate surrounds the light-emitting areas of the plurality of light-emitting units, and the fourth grating is used to transmit the light of the third color.

7. The light emitting assembly according to claim 1, characterized in that: At least one of the first surface and the second surface has a groove structure; The light modulating portion is located in the groove structure, and is used to reflect the light irradiated to the light modulating portion to the area where the positive projection of the light emitting area of ​​the light emitting unit on the base substrate is located, or the light modulating portion is used to absorb the light irradiated to the light modulating portion; Wherein, the groove structure surrounds the light emitting area of ​​the light emitting unit.

8. The light emitting assembly according to claim 7, characterized in that: The light-emitting component includes a plurality of light-emitting units, the light emitted by the plurality of light-emitting units has the same color, and the color of the light emitted by the plurality of light-emitting units after passing through the color conversion layer includes: a first color, a second color and a third color that are different from each other; the groove structure includes: A plurality of first annular grooves, each of which surrounds a light-emitting area of ​​the light-emitting unit; and a second annular groove, wherein the second annular groove surrounds the light emitting areas of the plurality of light emitting units; The light dimming unit comprises: A plurality of first dimming parts, each of which is located in one of the first annular grooves, and the material of the first dimming part is a reflective material or a light-absorbing material; The second dimming part is located in the second annular groove, and the material of the second dimming part is a light absorbing material.

9. The light emitting assembly according to claim 8, characterized in that: The second annular groove comprises: a plurality of sub-annular grooves, wherein the depth of the sub-annular grooves is negatively correlated with the distance between the sub-annular grooves and the light emitting unit; The second dimming unit includes a plurality of sub-dimming units, and each of the sub-dimming units is located in one of the sub-annular grooves.

10. The light emitting assembly according to claim 9, characterized in that: The plurality of sub-annular grooves include: a plurality of first sub-annular grooves and a plurality of second sub-annular grooves; The plurality of first sub-annular grooves are located on the first surface, the plurality of second sub-annular grooves are located on the second surface, and the plurality of first sub-annular grooves and the plurality of second sub-annular grooves are staggered; wherein the sum of the depth of the first sub-annular groove and the depth of the second sub-annular groove is less than the thickness of the substrate; The second dimming unit includes a plurality of first sub-dimming units and a plurality of second sub-dimming units, each of the first sub-dimming units is located in one of the first sub-annular grooves, and each of the second sub-dimming units is located in one of the second sub-annular grooves.

11. The light emitting assembly according to claim 7, characterized in that: The first annular groove and the second annular groove are both continuous grooves; or, The first annular groove includes a plurality of first dot-shaped grooves, and the arrangement direction of the plurality of first dot-shaped grooves is annular; The second annular groove includes a plurality of second dot-shaped grooves, and the arrangement direction of the plurality of second dot-shaped grooves is annular.

12. The light emitting assembly according to any one of claims 7 to 11, characterized in that: The light emitting component further includes: a light absorbing portion, the light absorbing portion at least covers the side edge of the base substrate, and the material of the light absorbing portion is a light absorbing material.

13. The light emitting assembly according to any one of claims 1 to 12, characterized in that: The light emitting component further comprises: a color filter layer located between the base substrate and the color conversion layer; The color filter layer includes a plurality of color filter patterns, the color conversion layer includes a plurality of color conversion patterns and a plurality of light-transmitting patterns, and each of the plurality of color filter patterns corresponds to a target pattern among the plurality of color conversion patterns and the plurality of light-transmitting patterns; The light-emitting component further includes: a retaining wall structure, the retaining wall structure having a plurality of second hollow areas, the plurality of second hollow areas corresponding to the plurality of first hollow areas one by one, and the orthographic projection of each second hollow area on the base substrate at least partially overlaps with the orthographic projection of the corresponding first hollow area on the base substrate; Each of the color filter patterns is located in one of the first hollow areas, and the target pattern corresponding to the color filter pattern is located in a second hollow area corresponding to the first hollow area.

14. The light emitting assembly according to any one of claims 1 to 12, characterized in that: The light-emitting unit includes: a first electrode, a second electrode, and a light-emitting layer electrically connected to the first electrode and the second electrode respectively; the light-emitting component also includes: a driving unit located on a side of the plurality of light-emitting units away from the base substrate; The driving unit includes a third electrode, a fourth electrode and a driving circuit, the third electrode and the fourth electrode are both connected to the driving circuit, the third electrode is electrically connected to the first electrode, and the fourth electrode is electrically connected to the second electrode.

15. A display panel, characterized in that: The display panel comprises a display backplane, and a plurality of light-emitting components according to any one of claims 1 to 14 arranged in an array and located on one side of the display backplane; The display backplane is used to provide a driving signal for the light-emitting component to drive the light-emitting component to emit light.

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