WO2026016255A1 - 显示面板及显示装置 - Google Patents

显示面板及显示装置

Info

Publication number
WO2026016255A1
WO2026016255A1 PCT/CN2024/113847 CN2024113847W WO2026016255A1 WO 2026016255 A1 WO2026016255 A1 WO 2026016255A1 CN 2024113847 W CN2024113847 W CN 2024113847W WO 2026016255 A1 WO2026016255 A1 WO 2026016255A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
color
emitting
layer
display panel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/CN2024/113847
Other languages
English (en)
French (fr)
Inventor
阚世雷
陈�胜
孙亮
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
Original Assignee
Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd filed Critical Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
Publication of WO2026016255A1 publication Critical patent/WO2026016255A1/zh
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10HINORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
    • H10H29/00Integrated devices, or assemblies of multiple devices, comprising at least one light-emitting semiconductor element covered by group H10H20/00
    • H10H29/30Active-matrix LED displays
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10HINORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
    • H10H29/00Integrated devices, or assemblies of multiple devices, comprising at least one light-emitting semiconductor element covered by group H10H20/00
    • H10H29/80Constructional details
    • H10H29/85Packages
    • H10H29/851Wavelength conversion means
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10KORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/30Devices specially adapted for multicolour light emission
    • H10K59/38Devices specially adapted for multicolour light emission comprising colour filters or colour changing media [CCM]

Definitions

  • This application relates to the field of display technology, and more particularly to a display panel and display device.
  • micro LED (uLED) display panels exhibit excellent performance in terms of brightness and lifespan. While monochrome micro LEDs can enable the manufacture of high-resolution displays, the manufacture of color high-resolution display panels still faces significant technical challenges. For example, the most mainstream method currently involves mass-transferring RGB monochrome microLEDs onto a driving substrate to assemble a full-color display. However, the stability, efficiency, and reliability of transferring a large number of microLEDs during the transfer process are poor, making it difficult to meet the demand for color semiconductor light-emitting diode display panels with higher resolution.
  • This application provides a display panel and display device that can reduce the manufacturing difficulty of a high-resolution color display panel and achieve a higher resolution display panel.
  • This application provides a display panel, which includes:
  • the light-emitting layer includes a first light-emitting portion and a second light-emitting portion disposed at intervals.
  • the first light-emitting portion emits light of a first color when the display panel is in a display state
  • the second light-emitting portion emits light of a second color when the display panel is in a display state;
  • a light-emitting functional layer is disposed on one side of the light-emitting layer, and the light-emitting functional layer includes:
  • a first color conversion unit is disposed corresponding to the first light-emitting unit along a first direction, and
  • the light-transmitting portion is disposed along the first direction corresponding to the second light-emitting portion
  • the first direction is the thickness direction of the display panel
  • the first color conversion unit is used to convert the first color light into a third color light
  • the third color light is different from the first color light
  • the first color light and the second color light are light of the same color.
  • embodiments of this application also provide a display device, the display device including a display panel, the display panel comprising:
  • the light-emitting layer includes a first light-emitting portion and a second light-emitting portion disposed at intervals.
  • the first light-emitting portion emits light of a first color when the display panel is in a display state
  • the second light-emitting portion emits light of a second color when the display panel is in a display state;
  • a light-emitting functional layer is disposed on one side of the light-emitting layer, and the light-emitting functional layer includes:
  • a first color conversion unit is disposed corresponding to the first light-emitting unit along a first direction, and
  • the light-transmitting portion is disposed along the first direction corresponding to the second light-emitting portion
  • the first direction is the thickness direction of the display panel
  • the first color conversion unit is used to convert the first color light into a third color light, wherein the third color light is different in color from the first color light.
  • Figure 1 is a schematic diagram of a display panel provided in an embodiment of this application.
  • Figure 2 is a schematic diagram of another structure of the display panel provided in an embodiment of this application.
  • Figure 3 is a schematic diagram of another structure of the display panel provided in an embodiment of this application.
  • Figure 4 is a schematic diagram of another structure of the display panel provided in an embodiment of this application.
  • Figure 5 is a schematic diagram of another structure of the display panel provided in an embodiment of this application.
  • Figure 6 is a schematic diagram of another structure of the display panel provided in an embodiment of this application.
  • Figures 7 and 8 are schematic diagrams illustrating the manufacturing process of a display panel provided in an embodiment of this application.
  • FIGS 9 to 11 are schematic diagrams of another manufacturing process of the display panel provided in the embodiments of this application.
  • the display panel includes a light-emitting layer 10 and a light-emitting functional layer 20.
  • the light-emitting layer 10 includes a first light-emitting part 11 and a second light-emitting part 12 disposed at intervals.
  • the first light-emitting part 11 emits a first color light when the display panel is in the display state
  • the second light-emitting part 12 emits a second color light when the display panel is in the display state.
  • the light-emitting functional layer 20 is disposed on one side of the light-emitting layer 10.
  • the light-emitting functional layer 20 includes a first color conversion part 21 disposed along the first direction X1 corresponding to the first light-emitting part 11, and a light-transmitting part 22 disposed along the first direction X1 corresponding to the second light-emitting part 12.
  • the first direction X1 is the thickness direction of the display panel.
  • the first color conversion unit 21 is used to convert the first color light into a third color light, wherein the second color light and the third color light are different in color.
  • the embodiments of this application form a first color conversion part 21 on one side of the first light-emitting part 11, thereby converting the first color light emitted by the first light-emitting part 11 into a third color light, while the second light-emitting part 12 can emit a second color light, so that the display panel can emit second color light and third color light of different colors, thereby realizing the color display of the display panel without the need for mass transfer, reducing the process difficulty of high-resolution display panels, and effectively realizing higher resolution display panels.
  • the light-emitting functional layer has a plurality of grooves, and at least one of the grooves has a light-reflecting surface on its sidewall.
  • the plurality of grooves include a first groove disposed along the first direction corresponding to the first light-emitting part, and a second groove disposed along the first direction corresponding to the second light-emitting part, the first color conversion part being disposed in the first groove, and the light-transmitting part being disposed in the second groove.
  • the light-transmitting portion includes a transparent filling material disposed in the second groove, and the light-reflecting surface is disposed on the sidewall of the second groove facing the transparent filling material.
  • the light-emitting functional layer further includes a dielectric layer and a reflective layer.
  • the dielectric layer has a plurality of grooves formed therein, and the reflective layer is disposed on the sidewalls of the plurality of grooves. The side of the reflective layer facing the groove is the light-reflecting surface.
  • the depth of the groove is less than or equal to the thickness of the dielectric layer.
  • the light-emitting functional layer further includes a metal layer, in which a plurality of grooves are formed, and the sidewall of the metal layer facing the grooves is the light-reflecting surface.
  • the depth of the groove is equal to the thickness of the metal layer.
  • the light-emitting layer further includes a third light-emitting part that is spaced apart from both the first light-emitting part and the second light-emitting part, and the third light-emitting part emits a fourth color light when the display panel is in a display state;
  • the plurality of grooves includes a third groove disposed along the first direction corresponding to the third light-emitting portion;
  • the light-emitting functional layer includes a second color conversion unit disposed in the third groove.
  • the second color conversion unit is used to convert the fourth color light into a fifth color light, wherein the second color light, the third color light, and the fifth color light are different colors of each other.
  • the materials of the first color conversion section and the second conversion section are both selected from quantum dot materials or phosphor materials.
  • the first color light, the second color light, and the fourth color light are all light of the same color.
  • the first color light, the second color light, and the fourth color light are all blue light
  • the third color light is one of red light and green light
  • the fifth color light is the other of red light and green light.
  • the display panel further includes a protective layer covering the side of the light-emitting functional layer away from the light-emitting layer; and/or
  • the protective layer covers the light-reflecting surface.
  • the display panel further includes a Bragg reflector layer disposed on the side of the light-emitting functional layer away from the light-emitting layer.
  • the Bragg reflector layer at least covers the first color conversion portion.
  • a through hole is formed in the Bragg reflector layer corresponding to the light-transmitting portion along the first direction.
  • the Bragg reflector layer reflects the first color light and the second color light, and transmits at least the third color light.
  • the Bragg reflector layer includes a plurality of first sub-layers and a plurality of second sub-layers stacked and alternately arranged along the first direction;
  • the first sublayer is made of silicon oxide
  • the second sublayer is made of titanium oxide
  • the display panel includes a driving substrate 30, a light-emitting layer 10 disposed on the driving substrate 30, and a light-emitting functional layer 20 disposed on the side of the light-emitting layer 10 away from the driving substrate 30.
  • the driving substrate 30 includes a substrate and a driving circuit disposed on the substrate, and the substrate is made of silicon.
  • the light-emitting layer 10 further includes a third light-emitting part 13 that is spaced apart from the first light-emitting part 11 and the second light-emitting part 12, and a spacer layer 14, wherein the spacer layer 14 fills the spaced spaces between the first light-emitting part 11, the second light-emitting part 12 and the third light-emitting part 13, so as to provide spacing, support and protection for the first light-emitting part 11, the second light-emitting part 12 and the third light-emitting part 13.
  • the material of the spacer layer 14 may include at least one of silicon nitride and silicon oxide.
  • the light-emitting functional layer 20 includes a second color conversion unit 23 disposed along the first direction X1 corresponding to the third light-emitting part 13; wherein, when the display panel is in the display state, the third light-emitting part 13 emits a fourth color light, and the second color conversion unit 23 is used to convert the fourth color light into a fifth color light; it is understood that the second light-emitting part 12 and the light-transmitting part 22 in the light-emitting functional layer 20 are disposed along the first direction X1, so that the second color light emitted by the second light-emitting part 12 can pass through the light-emitting functional layer 20; and the second color light, the third color light and the fifth color light are light of different colors, so that the display panel can emit the second color light, the third color light and the fifth color light to realize the color display of the display panel.
  • the first color light, the second color light, and the fourth color light are all light of the same color; more preferably, the first color light, the second color light, and the fourth color light are all blue light, the third color light is one of red light and green light, and the fifth color light is the other of red light and green light.
  • the display panel provided in this application embodiment can realize full-color display without the need for mass transfer, reducing the process difficulty of high-resolution display panels and effectively realizing higher resolution display panels.
  • the first color light, the second color light, and the fourth color light may also be light of different colors, which is not limited here.
  • the first color light, the second color light, and the fourth color light are all light of the same color as an example for illustration.
  • the first light-emitting part 11, the second light-emitting part 12, and the third light-emitting part 13 all include semiconductor light-emitting diodes.
  • the first light-emitting part 11 may include a first doped sublayer, a first light-emitting sublayer, and a second doped sublayer stacked on the driving substrate 30;
  • the second light-emitting part 12 may include a third doped sublayer, a second light-emitting sublayer, and a fourth doped sublayer stacked on the driving substrate 30;
  • the third light-emitting part 13 may include a fifth doped sublayer, a third light-emitting sublayer, and a sixth doped sublayer stacked on the driving substrate 30, wherein the materials of the first light-emitting sublayer, the second light-emitting sublayer, and the third light-emitting sublayer may all include quantum well light-emitting materials.
  • the first light-emitting part 11, the second light-emitting part 12, and the third light-emitting part 13 all emit blue light
  • the first light-emitting part 11, the second light-emitting part 12, and the third light-emitting part 13 have the same structure and material.
  • the materials of the first doped sublayer, the third doped sublayer, and the fifth doped sublayer can all include one or more of GaN, AlGaN, and AlInGaN.
  • the materials of the first light-emitting sublayer, the second light-emitting sublayer, and the third light-emitting sublayer can all include InGaN/GaN quantum well materials.
  • the materials of the second doped sublayer, the fourth doped sublayer, and the sixth doped sublayer can all include GaN materials.
  • first doped sublayer, the second doped sublayer, the third doped sublayer, the fourth doped sublayer, the fifth doped sublayer, and the sixth doped sublayer can all be connected to the driving circuit in the driving substrate 30 through electrodes to realize the transmission of light emission signals to the first light-emitting part 11, the second light-emitting part 12, and the third light-emitting part 13.
  • the materials of the first color conversion section 21 and the second color conversion section 23 are both selected from quantum dot materials or phosphor materials.
  • the material of the first color conversion unit 21 may include red quantum dots or red phosphors
  • the material of the second color conversion unit 23 may include green quantum dots or green phosphors.
  • the red quantum dots may be core-shell structured red quantum dots.
  • the core-shell structured red quantum dot includes a first quantum dot core and a first shell layer covering the first quantum dot core.
  • the material of the first quantum dot core may be one or more of CdSe, Cd2SeTe , and InAs
  • the material of the first shell layer may be one or more of CdS, ZnSe, ZnCdS2 , ZnS, and ZnO.
  • the red phosphor may be Ru-doped Y2O3 .
  • the green quantum dots may be core-shell structured green quantum dots.
  • the core-shell structured green quantum dots include a second quantum dot core and a second shell layer covering the second quantum dot core.
  • the material of the second quantum dot core can be one or more of ZnCdSe2 , InP, and Cd2SSe
  • the material of the second shell can be one or more of CdS, ZnSe, ZnCdS2 , ZnS, and ZnO .
  • the green phosphor can be Ru-doped SrGa2S4 .
  • red phosphor red quantum dot
  • green phosphor green quantum dot materials
  • specific materials can be selected according to actual application needs, and this application does not limit them.
  • the light-emitting functional layer 20 is provided with a plurality of grooves, and at least one of the grooves has a light-reflecting surface 201 on its sidewall; thus, when the light emitted by the first light-emitting part 11, the second light-emitting part 12 and the third light-emitting part 13 reaches the sidewall of the plurality of grooves, the light-reflecting surface 201 can reflect the light illuminating the sidewall of the groove back, so as to avoid light crosstalk and improve the light-emitting efficiency.
  • the light-emitting functional layer 20 further includes a dielectric layer 24 and a reflective layer 25.
  • the dielectric layer 24 has a plurality of grooves, and the reflective layer 25 is disposed on the sidewalls of the plurality of grooves.
  • the side of the reflective layer 25 facing the inside of the groove is the light-reflecting surface 201.
  • the depth of the groove is less than or equal to the thickness of the dielectric layer 24, and thus the first light-emitting part 11, the second light-emitting part 12, and the third light-emitting part 13 are further spaced from the groove by a portion of the dielectric layer 24, which can protect the first light-emitting part 11, the second light-emitting part 12, and the third light-emitting part 13 from being affected by subsequent processes.
  • the thickness H1 of the dielectric layer 24 is greater than or equal to 1 micrometer, and the thickness H2 of the dielectric layer 24 located at the bottom of the groove is greater than or equal to 1000 angstroms, and the thickness of the reflective layer 25 is greater than or equal to 500 angstroms.
  • the material of the dielectric layer 24 may include at least one of silicon nitride and silicon oxide
  • the material of the reflective layer 25 may include at least one of Al, Ag, and AlN.
  • the plurality of grooves include a first groove 210 disposed along the first direction X1 corresponding to the first light-emitting part 11, a second groove 220 disposed along the first direction X1 corresponding to the second light-emitting part 12, and a third groove 230 disposed along the first direction X1 corresponding to the third light-emitting part 13.
  • the first color conversion part 21 is disposed in the first groove 210.
  • the first groove 210 has a light reflecting surface 201 disposed on the side wall facing the first color conversion part 21.
  • the first color conversion part 21 can convert the first color light emitted by the first light-emitting part 11 into a third color light.
  • the third color light shines on the side wall of the first groove 210, the light can be reflected back by the light reflecting surface 201 to avoid light crosstalk and improve the light emission efficiency of the first light-emitting part 11.
  • No color conversion part is provided in the second groove 220 so that the second color light emitted by the second light-emitting part 12 can pass through directly.
  • the side wall of the second groove 220 is provided with the light reflecting surface 201. When the second color light shines on the side wall of the second groove 220, the light can be reflected back by the light reflecting surface 201 to avoid light crosstalk and improve the light emission efficiency of the second light-emitting part 12.
  • the second color conversion part 23 is disposed in the third groove 230.
  • the side wall of the third groove 230 facing the second color conversion part 23 is provided with the light reflecting surface 201.
  • the second color conversion part 23 can convert the fourth color light emitted by the third light-emitting part 13 into the fifth color light.
  • the fifth color light shines on the side wall of the third groove 230, the light can be reflected back by the light reflecting surface 201 to avoid light crosstalk and improve the light emission efficiency of the third light-emitting part 13.
  • the process difficulty of the color conversion part in the patterning process can be effectively reduced, and the defects such as holes on the side of the material of the color conversion part can be avoided due to over-etching on the side during the etching process, thereby improving the structural stability of the first color conversion part 21 and the second color conversion part 23.
  • the display panel further includes a protective layer 26, which covers the side of the light-emitting functional layer 20 away from the light-emitting layer 10 and/or the light-reflecting surface 201.
  • the protective layer 26 covers the side of the dielectric layer 24 away from the light-emitting layer 10, the reflective layer 25, and the bottom surface of the groove.
  • the first color conversion part 21 and the second color conversion part 23 are respectively disposed in the first groove 210 and the third groove 230, and are located on the side of the protective layer 26 away from the light-emitting layer 10.
  • the protective layer 26 can provide protection for the reflective layer 25, preventing the reflective layer 25 from being corroded in subsequent processes.
  • the thickness of the protective layer 26 is greater than or equal to 500 angstroms.
  • the protective layer 26 covers the side wall and bottom of the second groove 220, and the second color light can directly pass through the second groove 220. Therefore, the protective layer 26 located in the second groove 220 can be regarded as the light-transmitting part 22, that is, the light-transmitting part 22 includes the protective layer 26 located in the second groove 220.
  • the size of the groove along the second direction X2 is larger than the size of the first light-emitting part 11 along the second direction X2
  • the size of the groove along the second direction X2 is larger than the size of the second light-emitting part 12 along the second direction X2
  • the size of the groove along the second direction X2 is larger than the size of the third light-emitting part 13 along the second direction X2, wherein the second direction X2 is perpendicular to the first direction X1; thereby, more light emitted by the first light-emitting part 11, the second light-emitting part 12, and the third light-emitting part 13 can illuminate the multiple grooves and be reflected by the light-reflecting surface 201 of the groove sidewall, so as to reduce light crosstalk and improve the light emission efficiency of the display panel.
  • the surface of the first color conversion part 21 away from the light-emitting layer 10 and the surface of the second color conversion part 23 away from the light-emitting layer 10 can be flush with the surface of the protective layer 26 away from the light-emitting layer 10 and located outside the groove, so as to improve the flatness of the film layer in the display panel, reduce stress concentration, and improve the yield of the display panel.
  • the first light-emitting part 11 when the display panel is in the display state, the first light-emitting part 11 emits a first color light, the second light-emitting part 12 emits a second color light, and the third light-emitting part 13 emits a fourth color light.
  • the first color conversion part 21 converts the first color light into a third color light
  • the second color conversion part 23 converts the fourth color light into a fifth color light.
  • the second color light passes through the light-transmitting part 22. Therefore, the light emitted by the light-emitting layer 10 can emit the second color light, the third color light, and the fifth color light after passing through the light-emitting functional layer 20.
  • the display panel provided in this application embodiment can achieve full-color display without the need for mass transfer, reducing the process difficulty of high-resolution display panels and effectively realizing higher resolution display panels.
  • the light-transmitting portion 22 includes a transparent filling material 221 disposed in the second groove 220, and the light-reflecting surface 201 is disposed on the sidewall of the second groove 220 facing the transparent filling material 221.
  • the light-transmitting portion 22 may also include the protective layer 26 located within the second groove 220.
  • the transparent filler material 221 may include a transparent material, such as a transparent photoresist material or a polyester fiber material.
  • the surfaces of the first color conversion portion 21 away from the light-emitting layer 10, the second color conversion portion 23 away from the light-emitting layer 10, and the light-transmitting portion 22 away from the light-emitting layer 10 can all be flush with the surface of the protective layer 26 away from the light-emitting layer 10 and located outside the groove, so as to improve the flatness of the film layer in the display panel, reduce stress concentration, and improve the yield of the display panel.
  • the display panel provided in this application embodiment can achieve full-color display without the need for mass transfer, reducing the process difficulty of high-resolution display panels and effectively realizing higher resolution display panels.
  • the light-emitting functional layer 20 includes a metal layer 27, the metal layer 27 having a plurality of grooves, and the sidewall of the metal layer 27 in the grooves being the light-reflecting surface 201.
  • the metal layer 27 is directly patterned to form a plurality of grooves in the metal layer 27, and the sidewall of the metal layer 27 located in the grooves can serve as the light reflecting surface 201.
  • the depth of the groove is equal to the thickness of the metal layer 27; that is, the groove needs to penetrate the metal layer 27 so that the position corresponding to the groove can transmit light, and avoid the metal layer 27 blocking the light emission of the light-emitting layer 10 below it.
  • the material of the metal layer 27 may include at least one of Al, Ag, and AlN, and the thickness of the metal layer 27 is greater than or equal to 1 micrometer.
  • the protective layer 26 covers the side of the metal layer 27 away from the light-emitting layer 10, as well as the sidewall and bottom surface of the groove.
  • the first color conversion part 21 and the second color conversion part 23 are both located on the side of the protective layer 26 away from the light-emitting layer 10 and are respectively located in the first groove 210 and the third groove 230.
  • the light-emitting layer 10 further includes a cover layer 15 covering the surface of the spacer layer 14, the first light-emitting part 11, the second light-emitting part 12 and the third light-emitting part 13 away from the driving substrate 30, and the light-emitting functional layer 20 is located on the side of the cover layer 15 away from the light-emitting layer 10.
  • the material of the capping layer 15 may include at least one of a silicon oxide layer and a silicon nitride layer, and the thickness of the capping layer 15 is greater than or equal to 1000 angstroms.
  • the display panel provided in this application embodiment can achieve full-color display without the need for mass transfer, reducing the process difficulty of high-resolution display panels and effectively realizing higher resolution display panels.
  • the groove and the light-reflecting surface 201 are formed directly by patterning the metal layer 27. Therefore, compared with the embodiment shown in FIG1 which uses a reflective layer 25 to form the light-reflecting surface 201, the thickness of the film layer used for reflection in this embodiment is much greater than that of the reflective layer 25, which can effectively improve the reflective effect of the light-reflecting surface 201.
  • the light-transmitting part 22 includes a transparent filling material 221 disposed in the second groove 220, and the light-reflecting surface 201 is disposed on the side wall of the second groove 220 facing the transparent filling material 221.
  • the transparent filler material 221 may include a transparent material, such as a transparent photoresist material or a polyester fiber material.
  • the surfaces of the first color conversion portion 21 away from the light-emitting layer 10, the second color conversion portion 23 away from the light-emitting layer 10, and the light-transmitting portion 22 away from the light-emitting layer 10 can all be flush with the surface of the protective layer 26 away from the light-emitting layer 10 and located outside the groove, so as to improve the flatness of the film layer in the display panel, reduce stress concentration, and improve the yield of the display panel.
  • the display panel provided in this application embodiment can achieve full-color display without the need for mass transfer, reducing the process difficulty of high-resolution display panels and effectively realizing higher resolution display panels.
  • the display panel further includes a Bragg reflector layer 40 disposed on the side of the light-emitting functional layer 20 away from the light-emitting layer 10.
  • the Bragg reflector layer 40 at least covers the first color conversion part 21.
  • the Bragg reflector layer 40 has a through hole 401 in the first direction X1 corresponding to the light-transmitting part 22.
  • the Bragg reflector layer 40 reflects the first color light and the second color light, and transmits at least the third color light.
  • the Bragg reflector layer 40 can reflect the first color light back to the first color conversion part 21 to improve the utilization rate of the first color light.
  • the Bragg reflector layer 40 is also provided with a through hole 401 corresponding to the light-transmitting part 22. Therefore, the Bragg reflector layer 40 will not block the emission of the second color light, so as to realize the color display function of the display panel.
  • the Bragg reflective layer 40 covers the first color conversion part 21 and the second color conversion part 23.
  • the Bragg reflective layer 40 has a through hole 401 along the first direction X1 corresponding to the light-transmitting part 22.
  • the Bragg reflective layer 40 reflects the first color light, the second color light and the fourth color light, and transmits the third color light and the fifth color light.
  • the embodiments of this application can effectively reduce blue light leakage, reflect and reuse blue light, and effectively improve the utilization efficiency of blue light.
  • the Bragg reflector layer 40 includes a plurality of first sub-layers 41 and a plurality of second sub-layers 42 stacked and alternately arranged along the first direction X1; wherein the material of the first sub-layers 41 includes silicon oxide, such as silicon dioxide, and the material of the second sub-layers 42 includes titanium oxide, such as titanium trioxide.
  • the thickness of the first sublayer 41 can be one-quarter of the wavelength of the second color light
  • the thickness of the second sublayer 42 can be one-quarter of the wavelength of the second color light
  • the display panel provided in this application embodiment can achieve full-color display without the need for mass transfer, reducing the process difficulty of high-resolution display panels and effectively realizing higher resolution display panels.
  • this application embodiment forms a Bragg reflection layer 40 on one side of the light-emitting functional layer 20, allowing third and fifth color light to pass through, and the through-hole 401 in the Bragg reflection layer 40 allows second color light to pass through, thus not affecting the full-color display of the display panel.
  • the Bragg reflection layer 40 can reflect the first, second, and fourth color light, improving the light utilization rate of the display panel.
  • the display panel further includes a Bragg reflector layer 40 disposed on the side of the light-emitting functional layer 20 away from the light-emitting layer 10.
  • the Bragg reflector layer 40 at least covers the first color conversion part 21.
  • the Bragg reflector layer 40 has a through hole 401 in the first direction X1 corresponding to the light-transmitting part 22.
  • the Bragg reflector layer 40 reflects the first color light and the second color light, and transmits at least the third color light.
  • the Bragg reflector layer 40 can reflect the first color light back to the first color conversion part 21 to improve the utilization rate of the first color light.
  • the Bragg reflector layer 40 is also provided with a through hole 401 corresponding to the light-transmitting part 22. Therefore, the Bragg reflector layer 40 will not block the light emission of the second color light, so as to realize the color display function of the display panel.
  • the Bragg reflective layer 40 covers the first color conversion part 21 and the second color conversion part 23.
  • the Bragg reflective layer 40 has a through hole 401 along the first direction X1 corresponding to the light-transmitting part 22.
  • the Bragg reflective layer 40 reflects the first color light, the second color light and the fourth color light, and transmits the third color light and the fifth color light.
  • the first color light, the second color light, and the fourth color light are all blue light. This embodiment can effectively reduce blue light leakage, reflect the blue light, and reuse it, thereby effectively improving the utilization efficiency of blue light.
  • the Bragg reflector layer 40 includes a plurality of first sub-layers 41 and a plurality of second sub-layers 42 stacked and alternately arranged along the first direction X1; wherein the material of the first sub-layers 41 includes silicon oxide, such as silicon dioxide, and the material of the second sub-layers 42 includes titanium oxide, such as titanium trioxide.
  • the thickness of the first sublayer 41 can be one-quarter of the wavelength of the second color light
  • the thickness of the second sublayer 42 can be one-quarter of the wavelength of the second color light
  • the display panel provided in this application embodiment can achieve full-color display without the need for mass transfer, reducing the process difficulty of high-resolution display panels and effectively realizing higher resolution display panels.
  • this application embodiment forms a Bragg reflection layer 40 on one side of the light-emitting functional layer 20, allowing third and fifth color light to pass through, and the through-hole 401 in the Bragg reflection layer 40 allows second color light to pass through, thus not affecting the full-color display of the display panel.
  • the Bragg reflection layer 40 can reflect the first, second, and fourth color light, improving the light utilization rate of the display panel.
  • the display panel provided in this application embodiment also includes an encapsulation layer (not shown in the figure), and the encapsulation layer may cover the side of the light-emitting functional layer 20 away from the light-emitting layer 10, or the encapsulation layer may cover the side of the Bragg reflector layer 40 away from the light-emitting layer 10.
  • the encapsulation layer may be an inorganic layer, and the material of the inorganic layer may include at least one of silicon nitride or silicon oxide.
  • the encapsulation layer may be prepared by chemical vapor deposition or atomic layer deposition.
  • this application embodiment also provides a method for manufacturing the display panel described in the above embodiments.
  • the method for manufacturing the display panel includes:
  • a driving substrate 30 is provided, and the driving substrate 30 includes a silicon material substrate and a driving circuit formed on the silicon material substrate.
  • a bonding metal layer is deposited on the driving substrate 30.
  • a light-emitting material layer is formed on the substrate, and a transparent conductive layer and a bonding metal layer are deposited on the surface of the light-emitting material layer.
  • the light-emitting material layer and the driving substrate 30 are bonded together through the bonding metal layer, and then the substrate is peeled off.
  • the light-emitting material layer is patterned to form a light-emitting layer 10, and a plurality of light-emitting parts are formed in the light-emitting layer 10 at intervals, such as a first light-emitting part 11, a second light-emitting part 12 and a third light-emitting part 13 at intervals.
  • the first light-emitting part 11 can emit light of a first color
  • the second light-emitting part 12 can emit light of a second color
  • the third light-emitting part 13 can emit light of a fourth color, wherein the first color light, the second color light, and the fourth color light can all be blue light.
  • a spacer layer 14 is deposited on the driving substrate 30, and the spacer layer 14 fills the spaces between the first light-emitting part 11, the second light-emitting part 12 and the third light-emitting part 13 that are spaced apart; then the spacer layer 14 that extends beyond the top of the plurality of light-emitting parts can be ground flat.
  • a dielectric layer 24 is deposited on the side of the light-emitting layer 10 away from the driving substrate 30, and the thickness of the dielectric layer 24 can be greater than or equal to 1 micrometer.
  • the dielectric layer 24 is patterned to form a plurality of grooves in the dielectric layer 24.
  • the plurality of grooves may include a first groove 210 corresponding to the first light-emitting part 11 along the first direction X1, a second groove 220 corresponding to the second light-emitting part 12 along the first direction X1, and a third groove 230 corresponding to the third light-emitting part 13 along the first direction X1, wherein the first direction X1 is the thickness direction of the display panel.
  • the depth of the groove is less than the thickness of the dielectric layer 24, and the thickness of the dielectric layer 24 corresponding to the bottom of the groove is greater than or equal to 1000 angstroms; the dimension of the groove along the second direction X2 is greater than the dimension of the first light-emitting part 11 along the second direction X2, the dimension of the groove along the second direction X2 is greater than the dimension of the second light-emitting part 12 along the second direction X2, and the dimension of the groove along the second direction X2 is greater than the dimension of the third light-emitting part 13 along the second direction X2, and the second direction X2 is perpendicular to the first direction X1; thereby, more light emitted by the first light-emitting part 11, the second light-emitting part 12, and the third light-emitting part 13 can be directed into the multiple grooves and reflected by the light-reflecting surface 201 of the groove sidewall, so as to reduce light crosstalk and improve the light emission efficiency of the display panel.
  • the materials of both the spacer layer 14 and the dielectric layer 24 include at least one of silicon oxide or silicon nitride.
  • a dielectric material can be deposited on the driving substrate 30, and the dielectric material fills the spaces between adjacent spaced-apart first light-emitting portions 11, second light-emitting portions 12, and third light-emitting portions 13, and the dielectric material extends beyond the tops of the first light-emitting portions 11, second light-emitting portions 12, and third light-emitting portions 13; then, the dielectric material extending beyond the tops of the first light-emitting portions 11, second light-emitting portions 12, and third light-emitting portions 13 is patterned to form a plurality of grooves, that is, the dielectric material filling the spaces between the spaced-apart first light-emitting portions 11, second light-emitting portions 12, and third light-emitting portions 13 is the spacer layer 14, and the dielectric material extending beyond the tops of the first light-emitting portions 11, second light-emitting portions 12, and third light-emitting portions 13
  • a reflective metal layer is formed on the side of the dielectric layer 24 away from the driving substrate 30, and the reflective metal layer is patterned to form a reflective layer 25 located on the sidewall of the groove.
  • the thickness of the reflective layer 25 is greater than or equal to 500 angstroms, and the material of the reflective layer 25 may include at least one of Al, Ag, and AlN.
  • a protective layer 26 is formed on the side of the dielectric layer 24 and the light-emitting layer 10 away from the driving substrate 30, and the protective layer 26 covers the side of the dielectric layer 24 away from the light-emitting layer 10, the reflective layer 25, and the bottom surface of the groove, as shown in FIG7.
  • the thickness of the protective layer 26 is greater than or equal to 500 angstroms.
  • a first color conversion material layer is formed on the protective layer 26, and the first color conversion material layer is patterned to retain the first color conversion material layer located in the first groove 210 and remove the first color conversion material layer in other positions to form the first color conversion part 21, as shown in FIG8.
  • a second color conversion material layer is formed on the protective layer 26, and the second color conversion material layer is patterned to retain the second color conversion material layer located in the third groove 230, and remove the second color conversion material layer in other positions to form the second color conversion part 23.
  • the first color conversion unit 21 is used to convert the first color light into the third color light
  • the second color conversion unit 23 is used to convert the fourth color light into the fifth color light
  • the third color light is one of red light and green light
  • the fifth color light is the other of red light and green light
  • a transparent material layer is formed on the protective layer 26, and the transparent material layer is patterned to retain the transparent material layer located in the second groove 220 and remove the transparent material layer in other locations to form the transparent filler material 221, as shown in FIG1.
  • the method for manufacturing the display panel includes:
  • a driving substrate 30 is provided, and the driving substrate 30 includes a silicon material substrate and a driving circuit formed on the silicon material substrate.
  • a bonding metal layer is deposited on the driving substrate 30.
  • a light-emitting material layer is formed on the substrate, and a transparent conductive layer and a bonding metal layer are deposited on the surface of the light-emitting material layer.
  • the light-emitting material layer and the driving substrate 30 are bonded together through the bonding metal layer, and then the substrate is peeled off.
  • the light-emitting material layer is patterned to form a light-emitting layer 10, and a plurality of light-emitting parts are formed in the light-emitting layer 10 at intervals, such as a first light-emitting part 11, a second light-emitting part 12 and a third light-emitting part 13 at intervals.
  • the first light-emitting part 11 can emit light of a first color
  • the second light-emitting part 12 can emit light of a second color
  • the third light-emitting part 13 can emit light of a fourth color, wherein the first color light, the second color light, and the fourth color light can all be blue light.
  • a spacer layer 14 is deposited on the driving substrate 30, and the spacer layer 14 fills the space between the first light-emitting part 11, the second light-emitting part 12 and the third light-emitting part 13 that are spaced apart; then the spacer layer 14 that extends beyond the top of the plurality of light-emitting parts can be ground flat.
  • a capping layer 15 is deposited on the side of the light-emitting layer 10 away from the driving substrate 30, and the thickness of the capping layer 15 may be greater than or equal to 1000 angstroms.
  • a dielectric material can be deposited on the driving substrate 30, and the dielectric material fills the spaces between adjacent spaced-apart first light-emitting portions 11, second light-emitting portions 12, and third light-emitting portions 13, with the dielectric material extending beyond the tops of the first light-emitting portions 11, second light-emitting portions 12, and third light-emitting portions 13; then, the dielectric material extending beyond the tops of the first light-emitting portions 11, second light-emitting portions 12, and third light-emitting portions 13 is patterned to form a plurality of grooves, i.e., the dielectric material filling the spaces between the spaced-apart first light-emitting portions 11, second light-emitting portions 12, and third light-emitting portions 13 is the spacer layer 14, and the dielectric material extending beyond the tops of the first light-emitting portions 11, second light-emitting portions 12, and third light-emitting
  • the materials of the spacer layer 14 and the cover layer 15 both include at least one of silicon oxide or silicon nitride.
  • a metal material layer is deposited on the cover layer 15, and the metal material layer is patterned to form a metal layer 27.
  • the metal layer 27 has a plurality of grooves.
  • the plurality of grooves may include a first groove 210 corresponding to the first light-emitting part 11 along the first direction X1, a second groove 220 corresponding to the second light-emitting part 12 along the first direction X1, and a third groove 230 corresponding to the third light-emitting part 13 along the first direction X1.
  • the first direction X1 is the thickness direction of the display panel.
  • the depth of the groove is equal to the thickness of the metal layer 27, and the thickness of the metal layer 27 is greater than or equal to 1 micrometer.
  • the dimension of the groove along the second direction X2 is greater than the dimension of the first light-emitting part 11 along the second direction X2, the dimension of the groove along the second direction X2 is greater than the dimension of the second light-emitting part 12 along the second direction X2, and the dimension of the groove along the second direction X2 is greater than the dimension of the third light-emitting part 13 along the second direction X2.
  • the second direction X2 is perpendicular to the first direction X1.
  • the material of the metal layer 27 may include at least one of Al, Ag, and AlN.
  • a protective layer 26 is formed on the side of the metal layer 27 away from the driving substrate 30, and the protective layer 26 covers the side of the metal layer 27 away from the light-emitting layer 10 and the bottom surface of the groove, as shown in FIG9.
  • the thickness of the protective layer 26 is greater than or equal to 500 angstroms.
  • a first color conversion material layer is formed on the protective layer 26, and the first color conversion material layer is patterned to retain the first color conversion material layer located in the first groove 210 and remove the first color conversion material layer in other positions to form the first color conversion part 21, as shown in FIG10.
  • a second color conversion material layer is formed on the protective layer 26, and the second color conversion material layer is patterned to retain the second color conversion material layer located in the third groove 230, and remove the second color conversion material layer in other positions to form the second color conversion part 23.
  • the first color conversion unit 21 is used to convert the first color light into the third color light
  • the second color conversion unit 23 is used to convert the fourth color light into the fifth color light
  • the third color light is one of red light and green light
  • the fifth color light is the other of red light and green light
  • a transparent material layer is formed on the protective layer 26, and the transparent material layer is patterned to retain the transparent material layer located in the second groove 220 and remove the transparent material layer in other locations to form the transparent filler material 221, as shown in FIG11.
  • a Bragg reflection layer 40 is formed on the side of the protective layer 26, the first color conversion part 21, the light transmission part 22 and the second color conversion part 23 away from the driving substrate 30.
  • the Bragg reflection layer 40 is used to reflect the first color light, the second color light and the fourth color light, and to transmit the third color light and the fifth color light.
  • the Bragg reflector layer 40 is patterned to form through holes 401 in the Bragg reflector layer 40 that correspond to the first light-emitting part 11 along the first direction X1, as shown in FIG6.
  • the Bragg reflector layer 40 includes a plurality of first sub-layers 41 and a plurality of second sub-layers 42 stacked and alternately arranged along the first direction X1; wherein the material of the first sub-layers 41 includes silicon oxide, such as silicon dioxide, and the material of the second sub-layers 42 includes titanium oxide, such as titanium trioxide.
  • the thickness of the first sublayer 41 can be one-quarter of the wavelength of the second color light
  • the thickness of the second sublayer 42 can be one-quarter of the wavelength of the second color light
  • the first light-emitting part 11 when the display panel is in the display state, the first light-emitting part 11 emits a first color light, the second light-emitting part 12 emits a second color light, and the third light-emitting part 13 emits a fourth color light.
  • the first color conversion part 21 converts the first color light into a third color light
  • the second color conversion part 23 converts the fourth color light into a fifth color light.
  • the second color light passes through the light-transmitting part 22, and thus the light emitted by the light-emitting layer 10, after passing through the light-emitting functional layer 20, can emit the second color light, the third color light, and the fifth color light. For example, when the first color light, the second color light, and the fourth color light...
  • the display panel provided in this application embodiment can achieve full-color display without mass transfer, reducing the process difficulty of high-resolution display panels and effectively realizing higher resolution display panels.
  • this application embodiment can reduce light crosstalk and improve light extraction efficiency.
  • this application embodiment can also form the Bragg reflective layer 40 on the side of the light extraction functional layer 20 away from the light-emitting layer 10 to improve light utilization and light extraction efficiency.
  • this application embodiment also provides a display device, which includes a device body and a display panel, wherein the device body and the display panel are combined into one unit, and the display panel can be the display panel described in the above embodiment.
  • the main body of the device may include a frame, a driving component, and a power supply, etc., which are not limited herein.
  • the display device provided in this application includes the display panel described in the above embodiments. Therefore, the display device has the same beneficial effects as the display panel described in the above embodiments, and will not be repeated here.

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Abstract

本申请公开了一种显示面板及显示装置;在显示面板处于显示状态时,第一发光部发出第一颜色光线,第二发光部发出第二颜色光线;出光功能层包括与第一发光部对应设置的第一色转换部、以及与第二发光部对应设置的透光部;第一色转换部用于将第一颜色光线转换为第三颜色光线,第二颜色光线与第三颜色光线的颜色相异。

Description

显示面板及显示装置
本申请要求于2024年07月17日提交中国专利局、申请号为202410962171.6的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
技术领域
本申请涉及显示技术领域,尤其涉及一种显示面板及显示装置。
背景技术
随着显示技术的发展,用户对显示面板的要求越来越高,特别是在显示面板的寿命、分辨率和亮度方面提出了更高的要求。
目前,微型半导体发光二极管(uLED)显示面板在亮度和寿命方面都表现优异,目前单色微型半导体发光二极管可实现高分辨率显示器的制造生产,但彩色高分辨率的显示面板制造还存在较大的技术难题,例如,当前最主流的方法是通过巨量转移的方式将RGB单色的微型LED分别转移到驱动基板上组装制造出全彩的显示器,然而,大量的微型LED在转移过程中的稳定高效和转移可靠性不佳,进而难以满足彩色且具有更高分辨率的半导体发光二极管显示面板的需求。
发明概述
本申请实施例提供一种显示面板及显示装置,能够降低彩色高分辨率显示面板的工艺难度,实现更高分辨率的显示面板。
本申请实施例提供一种显示面板,其包括:
发光层,包括间隔设置的第一发光部和第二发光部,所述第一发光部在所述显示面板处于显示状态时发出第一颜色光线,所述第二发光部在所述显示面板处于显示状态时发出第二颜色光线;和
出光功能层,设置于所述发光层的一侧,所述出光功能层包括:
第一色转换部,沿第一方向与所述第一发光部对应设置,以及
透光部,沿所述第一方向与所述第二发光部对应设置;
其中,所述第一方向为所述显示面板的厚度方向,所述第一色转换部用于将所述第一颜色光线转换为第三颜色光线,所述第三颜色光线与所述第一颜色光线的颜色相异,所述第一颜色光线以及所述第二颜色光线为相同颜色的光线。
根据本申请的上述目的,本申请实施例还提供一种显示装置,所述显示装置包括显示面板,所述显示面板包括:
包括:
发光层,包括间隔设置的第一发光部和第二发光部,所述第一发光部在所述显示面板处于显示状态时发出第一颜色光线,所述第二发光部在所述显示面板处于显示状态时发出第二颜色光线;和
出光功能层,设置于所述发光层的一侧,所述出光功能层包括:
第一色转换部,沿第一方向与所述第一发光部对应设置,以及
透光部,沿所述第一方向与所述第二发光部对应设置;
其中,所述第一方向为所述显示面板的厚度方向,所述第一色转换部用于将所述第一颜色光线转换为第三颜色光线,所述第三颜色光线与所述第一颜色光线的颜色相异。
附图说明
下面结合附图,通过对本申请的具体实施方式详细描述,将使本申请的技术方案及其它有益效果显而易见。
图1为本申请实施例提供的显示面板的一种结构示意图;
图2为本申请实施例提供的显示面板的另一种结构示意图;
图3为本申请实施例提供的显示面板的另一种结构示意图;
图4为本申请实施例提供的显示面板的另一种结构示意图;
图5为本申请实施例提供的显示面板的另一种结构示意图;
图6为本申请实施例提供的显示面板的另一种结构示意图;
图7和图8为本申请实施例提供的显示面板的一种制作过程的结构示意图;
图9至图11为本申请实施例提供的显示面板的另一种制作过程的结构示意图。
本发明的实施方式
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行清楚、完整地描述。显然,所描述的实施例仅仅是本申请一部分实施例,而不是全部的实施例。基于本申请中的实施例,本领域技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本申请保护的范围。
下文的公开提供了许多不同的实施方式或例子用来实现本申请的不同结构。为了简化本申请的公开,下文中对特定例子的部件和设置进行描述。当然,它们仅仅为示例,并且目的不在于限制本申请。此外,本申请可以在不同例子中重复参考数字和/或参考字母,这种重复是为了简化和清楚的目的,其本身不指示所讨论各种实施方式和/或设置之间的关系。此外,本申请提供了的各种特定的工艺和材料的例子,但是本领域普通技术人员可以意识到其他工艺的应用和/或其他材料的使用。
本申请实施例提供一种显示面板,请参照图1,所述显示面板包括发光层10以及出光功能层20;所述发光层10包括间隔设置的第一发光部11和第二发光部12,所述第一发光部11在所述显示面板处于显示状态时发出第一颜色光线,所述第二发光部12在所述显示面板处于所述显示状态时发出第二颜色光线。
所述出光功能层20设置于所述发光层10的一侧,所述出光功能层20包括沿第一方向X1上与所述第一发光部11对应设置的第一色转换部21、以及沿所述第一方向X1上与所述第二发光部12对应设置的透光部22,所述第一方向X1为所述显示面板的厚度方向。
其中,所述第一色转换部21用于将所述第一颜色光线转换为第三颜色光线,所述第二颜色光线与所述第三颜色光线额颜色相异。
在实施应用过程中,本申请实施例通过在第一发光部11的一侧形成第一色转换部21,进而可以将第一发光部11发出的第一颜色光线转换为第三颜色光线,而第二发光部12可以发出第二颜色光线,使得显示面板可以发出颜色不同的第二颜色光线和第三颜色光线,进而实现了显示面板的彩色化显示,且无需进行巨量转移,降低了高分辨率显示面板的工艺难度,可有效实现更高分辨率的显示面板。
在本申请的一种实施例中,所述出光功能层中开设有多个凹槽,至少一个所述凹槽的侧壁设置有光反射面;
多个所述凹槽包括沿所述第一方向与所述第一发光部对应设置的第一凹槽、以及沿所述第一方向与所述第二发光部对应设置的第二凹槽,所述第一色转换部设置于所述第一凹槽内,所述透光部设置于所述第二凹槽内。
在本申请的一种实施例中,所述透光部包括设置于所述第二凹槽内的透明填充材料,所述第二凹槽朝向所述透明填充材料的侧壁设置有所述光反射面。
在本申请的一种实施例中,所述出光功能层还包括介质层和反光层,所述介质层中开设有多个所述凹槽,所述反光层设置于多个所述凹槽的侧壁,所述反光层朝向所述凹槽的一面为所述光反射面。
在本申请的一种实施例中,所述凹槽的深度小于或等于所述介质层的厚度。
在本申请的一种实施例中,所述出光功能层还包括金属层,所述金属层中开设有多个所述凹槽,所述金属层朝向所述凹槽的侧壁为所述光反射面。
在本申请的一种实施例中,所述凹槽的深度等于所述金属层的厚度。
在本申请的一种实施例中,所述发光层还包括与所述第一发光部、所述第二发光部均间隔设置的第三发光部,所述第三发光部在所述显示面板处于显示状态时发出第四颜色光线;
多个所述凹槽包括沿所述第一方向与所述第三发光部对应设置的第三凹槽;
所述出光功能层包括第二色转换部,所述第二色转换部设置于所述第三凹槽内,所述第二色转换部用于将所述第四颜色光线转换为第五颜色光线,所述第二颜色光线、所述第三颜色光线以及所述第五颜色光线相互为不同颜色的光线。
在本申请的一种实施例中,所述第一色转换部的材料和所述第二转换部的材料均选自量子点材料或者荧光粉材料。
在本申请的一种实施例中,所述第一颜色光线、所述第二颜色光线以及所述第四颜色光线均为相同颜色的光线。
在本申请的一种实施例中,所述第一颜色光线、所述第二颜色光线以及所述第四颜色光线均为蓝色光线,所述第三颜色光线为红色光线和绿色光线中的一者,所述第五颜色光线为红色光线和绿色光线中的另一者。
在本申请的一种实施例中,所述显示面板还包括保护层,所述保护层覆盖所述出光功能层远离所述发光层的一面;和/或
所述保护层覆盖所述光反射面。
在本申请的一种实施例中,所述显示面板还包括设置于所述出光功能层远离所述发光层一侧的布拉格反射层,所述布拉格反射层至少覆盖所述第一色转换部,所述布拉格反射层中开设有沿所述第一方向对应所述透光部的通孔,所述布拉格反射层反射所述第一颜色光线以及所述第二颜色光线,并至少透过所述第三颜色光线。
在本申请的一种实施例中,所述布拉格反射层包括沿所述第一方向层叠且交替设置的多个第一子层和多个第二子层;
其中,所述第一子层的材料包括氧化硅材料,所述第二子层的材料包括氧化钛材料。
具体地,请参照图1,所述显示面板包括驱动基板30、设置于所述驱动基板30上的发光层10以及设置于所述发光层10远离所述驱动基板30一侧的出光功能层20。
在一些实施例中,所述驱动基板30包括衬底以及设置于所述衬底上的驱动电路,且所述衬底的材料包括硅材料。
在一些实施例中,所述发光层10还包括与所述第一发光部11、所述第二发光部12均间隔设置的第三发光部13、以及间隔层14,且所述间隔层14填充于间隔设置的所述第一发光部11、所述第二发光部12以及所述第三发光部13之间,以对所述第一发光部11、所述第二发光部12以及所述第三发光部13起到间隔、支撑和保护作用。
在一些实施例中,所述间隔层14的材料可以包括氮化硅材料以及氧化硅材料中的至少一种。
在一些实施例中,所述出光功能层20包括沿所述第一方向X1对应所述第三发光部13设置的第二色转换部23;其中,所述第三发光部13在所述显示面板处于所述显示状态时发出第四颜色光线,所述第二色转换部23用于将所述第四颜色光线转换为第五颜色光线;可以理解的是,所述第二发光部12与所述出光功能层20中的所述透光部22沿所述第一方向X1对应设置,进而所述第二发光部12发出的第二颜色光线可以透过出光功能层20;且所述第二颜色光线、所述第三颜色光线以及所述第五颜色光线相互为不同颜色的光线,进而所述显示面板可以发出第二颜色光线、第三颜色光线以及第五颜色光线,以实现显示面板的彩色化显示。
在一些实施例中,所述第一颜色光线、所述第二颜色光线以及所述第四颜色光线均为相同颜色的光线;进一步优选地,所述第一颜色光线、所述第二颜色光线以及所述第四颜色光线均为蓝色光线,所述第三颜色光线为红色光线和绿色光线中的一者,所述第五颜色光线为红色光线和绿色光线中的另一者,进而本申请实施例提供的显示面板可以实现所述显示面板的全彩化显示,且无需进行巨量转移,降低了高分辨率显示面板的工艺难度,可有效实现更高分辨率的显示面板。
在本申请的其他实施例中,所述第一颜色光线、所述第二颜色光线以及所述第四颜色光线也可以为不同颜色的光线,在此不作限定,且本申请实施例以所述第一颜色光线、所述第二颜色光线以及所述第四颜色光线均为相同颜色的光线为例,进行说明。
在一些实施例中,所述第一发光部11、所述第二发光部12以及所述第三发光部13均包括半导体发光二极管。
例如,所述第一发光部11可以包括层叠设置于所述驱动基板30上的第一掺杂子层、第一发光子层以及第二掺杂子层;所述第二发光部12可以包括层叠设置于所述驱动基板30上的第三掺杂子层、第二发光子层以及第四掺杂子层;所述第三发光部13可以包括层叠设置于所述驱动基板30上的第五掺杂子层、第三发光子层以及第六掺杂子层,其中,所述第一发光子层、所述第二发光子层以及所述第三发光子层的材料均可以包括量子阱发光材料。
在一些实施例中,所述第一发光部11、所述第二发光部12以及所述第三发光部13均发出蓝色光,且所述第一发光部11、所述第二发光部12以及所述第三发光部13的结构和材料相同,例如所述第一掺杂子层、所述第三掺杂子层以及所述第五掺杂子层的材料均可以包括GaN、AlGaN、AlInGaN的一种或多种,所述第一发光子层、所述第二发光子层以及所述第三发光子层的材料均可以包括InGaN/GaN量子阱材料,所述第二掺杂子层、所述第四掺杂子层以及所述第六掺杂子层的材料均可以包括GaN材料。
需要说明的是,所述第一掺杂子层、所述第二掺杂子层、所述第三掺杂子层、所述第四掺杂子层、所述第五掺杂子层以及所述第六掺杂子层均可以通过电极与驱动基板30中的驱动电路进行连接,以实现对所述第一发光部11、所述第二发光部12以及所述第三发光部13进行发光信号的传输。
在一些实施例中,所述第一色转换部21的材料和所述第二色转换部23的材料均选自量子点材料或者荧光粉材料。
在一具体实施例中,当所述第三颜色光线为红色光线,所述第五颜色光线为绿色光线时,所述第一色转换部21的材料可以包括红色量子点或者红色荧光粉,所述第二色转换部23的材料可以包括绿色量子点或者绿色荧光粉。其中,所述红色量子点可以为核壳结构的红色量子点。所述核壳结构的红色量子点包括第一量子点核和包覆于所述第一量子点核的第一壳层。具体的,所述第一量子点核的材料可以为CdSe、Cd 2SeTe及InAs中的一种或多种,所述第一壳层的材料可以为CdS、ZnSe、ZnCdS 2、ZnS及ZnO中的一种或多种。所述红色荧光粉可以为Ru掺杂的Y 2O 3。所述绿色量子点可以为核壳结构的绿色量子点。所述核壳结构的绿色量子点包括第二量子点核和包覆于所述第二量子点核的第二壳层。具体的,所述第二量子点核的材料可以为ZnCdSe 2、InP及Cd 2SSe中的一种或多种,所述第二壳层的材料可以为CdS、ZnSe、ZnCdS 2、ZnS及ZnO中的一种或多种。所述绿色荧光粉可以为Ru掺杂的SrGa 2S 4
需要说明的是,上述红色荧光粉、红色量子点、绿色荧光粉以及绿色量子点的材料仅为示例,具体材料可以根据实际应用需求进行选择,本申请对此不作限定。
进一步地,在一些实施例中,所述出光功能层20中开设有多个凹槽,至少一个所述凹槽的侧壁设置有光反射面201;进而当所述第一发光部11、所述第二发光部12以及所述第三发光部13发出的光线到达多个所述凹槽的侧壁时,所述光反射面201可以将照射至所述凹槽侧壁的光线反射回去,以避免发生光线串扰的现象,并提高出光效率。
在一些实施例中,所述出光功能层20还包括介质层24和反光层25,所述介质层24中开设有多个所述凹槽,所述反光层25设置于多个所述凹槽的侧壁,所述反光层25朝向所述凹槽内部的一面为所述光反射面201。
需要说明的是,本申请实施例在介质层24中形成多个凹槽,而介质层24相对于金属材料而言更容易图案化,因此,本申请实施例可以降低工艺难度。
在一些实施例中,所述凹槽的深度小于或等于所述介质层24的厚度,进而所述第一发光部11、所述第二发光部12以及所述第三发光部13与所述凹槽之间还间隔有部分所述介质层24,可以对所述第一发光部11、所述第二发光部12以及所述第三发光部13起到保护作用,以避免所述第一发光部11、所述第二发光部12以及所述第三发光部13被后续制程所影响。
在一些实施例中,所述介质层24的厚度H1大于或等于1微米,且位于所述凹槽底部的所述介质层24的厚度H2大于或等于1000埃,所述反光层25的厚度大于或等于500埃。
在一些实施例中,所述介质层24的材料可以包括氮化硅以及氧化硅中的至少一种,所述反光层25的材料可以包括Al、Ag、以及AlN中的至少一种。
多个所述凹槽包括沿所述第一方向X1与所述第一发光部11对应设置的第一凹槽210、沿所述第一方向X1与所述第二发光部12对应设置的第二凹槽220、以及沿所述第一方向X1与所述第三发光部13对应设置的第三凹槽230。
其中,所述第一色转换部21设置于所述第一凹槽210内,所述第一凹槽210朝向所述第一色转换部21的侧壁设置有所述光反射面201,进而第一色转换部21可以将第一发光部11发出的第一颜色光线转换为第三颜色光线,且当第三颜色光线照射至所述第一凹槽210的侧壁时,可以藉由所述光反射面201将光线反射回,以避免光线串扰,并提高所述第一发光部11的出光效率。
所述第二凹槽220内不设置色转换部,以使得所述第二发光部12发出的第二颜色光线可以直接透过,且所述第二凹槽220的侧壁设置有所述光反射面201,进而当第二颜色光线照射至所述第二凹槽220的侧壁时,可以藉由所述光反射面201将光线反射回,以避免光线串扰,并提高所述第二发光部12的出光效率。
所述第二色转换部23设置于所述第三凹槽230内,所述第三凹槽230朝向所述第二色转换部23的侧壁设置有所述光反射面201,进而第二色转换部23可以将第三发光部13发出的第四颜色光线转换为第五颜色光线,且当第五颜色光线照射至所述第三凹槽230的侧壁时,可以藉由所述光反射面201将光线反射回,以避免光线串扰,并提高所述第三发光部13的出光效率。
本申请实施例通过将所述第一色转换部21和所述第二色转换部23分别设置于所述第一凹槽210和所述第三凹槽230内,可以有效降低色转换部在图案化过程中的工艺难度,避免色转换部的材料在蚀刻过程中由于侧面出现过刻蚀,而导致侧面出现孔洞等不良现象的发生,提高了所述第一色转换部21和所述第二色转换部23的结构稳定性。
在一些实施例中,所述显示面板还包括保护层26,所述保护层26覆盖所述出光功能层20远离所述发光层10的一面和/或所述光反射面201;具体地,所述保护层26覆盖所述介质层24远离所述发光层10的一面、所述反光层25以及所述凹槽的底面,而所述第一色转换部21以及所述第二色转换部23分别设置于所述第一凹槽210和所述第三凹槽230内,并位于所述保护层26远离所述发光层10的一侧,进而保护层26可以对所述反光层25提供保护作用,避免反光层25在后续制程中不被腐蚀。
在一些实施例中,所述保护层26的厚度大于或等于500埃。
需要说明的是,所述第二凹槽220内不设置色转换部,所述保护层26覆盖所述第二凹槽220的侧壁以及底部,且所述第二颜色光线可以直接透过所述第二凹槽220,因此,位于所述第二凹槽220内的所述保护层26可视为所述透光部22,即所述透光部22包括位于所述第二凹槽220内的所述保护层26。
在一些实施例中,所述凹槽沿第二方向X2上的尺寸大于所述第一发光部11沿所述第二方向X2上的尺寸,所述凹槽沿所述第二方向X2上的尺寸大于所述第二发光部12沿所述第二方向X2上的尺寸,所述凹槽沿所述第二方向X2上的尺寸大于所述第三发光部13沿所述第二方向X2上的尺寸,所述第二方向X2垂直于所述第一方向X1;进而可以使得所述第一发光部11、所述第二发光部12以及所述第三发光部13发出的光线更多的照射至多个所述凹槽内,并经过所述凹槽侧壁的所述光反射面201进行反射,以减少光串扰并提高所述显示面板的出光效率。
在一些实施例中,所述第一色转换部21远离所述发光层10一侧的表面、所述第二色转换部23远离所述发光层10一侧的表面均可以与所述保护层26远离所述发光层10且位于所述凹槽外的表面相平齐,以提高所述显示面板中膜层的平坦度,减少应力集中现象,提高所述显示面板的良品率。
承上,当所述显示面板处于所述显示状态时,所述第一发光部11发出第一颜色光线,所述第二发光部12发出第二颜色光线,所述第三发光部13发出第四颜色光线,所述第一色转换部21将所述第一颜色光线转换为第三颜色光线,所述第二色转换部23将所述第四颜色光线转换为第五颜色光线,第二颜色光线透过透光部22,进而所述发光层10发出的光经过所述出光功能层20之后,可以发出第二颜色光线、第三颜色光线以及第五颜色光线,例如当所述第一颜色光线、所述第二颜色光线以及所述第四颜色光线均为蓝色光,所述第三颜色光线为红色光和绿色光中的一者,所述第五颜色光线为红色光和绿色光中的另一者,进而本申请实施例提供的显示面板可以实现所述显示面板的全彩化显示,且无需进行巨量转移,降低了高分辨率显示面板的工艺难度,可有效实现更高分辨率的显示面板。
在本申请的另一些实施例中,请参照图2,其与图1所示实施例的区别之处在于:所述透光部22包括设置于所述第二凹槽220内的透明填充材料221,所述第二凹槽220朝向所述透明填充材料221的侧壁设置有所述光反射面201。
可以理解的是,所述透光部22还可以包括位于所述第二凹槽220内的所述保护层26。
在一些实施例中,所述透明填充材料221的材料可以包括透明材料,例如可以为透明光阻材料或者聚酯纤维材料。
在一些实施例中,所述第一色转换部21远离所述发光层10一侧的表面、所述第二色转换部23远离所述发光层10一侧的表面、以及所述透光部22远离所述发光层10一侧的表面均可以与所述保护层26远离所述发光层10且位于所述凹槽外的表面相平齐,以提高所述显示面板中膜层的平坦度,减少应力集中现象,提高所述显示面板的良品率。
承上,本申请实施例提供的显示面板可以实现所述显示面板的全彩化显示,且无需进行巨量转移,降低了高分辨率显示面板的工艺难度,可有效实现更高分辨率的显示面板。
在本申请的一些实施例中,请参照图3,其与图1所示实施例的区别之处在于:所述出光功能层20包括金属层27,所述金属层27中开设有多个所述凹槽,所述金属层27在所述凹槽内的侧壁为所述光反射面201。
在本实施例中,直接对金属层27进行图案化处理,以在所述金属层27中形成多个所述凹槽,进而金属层27位于所述凹槽内的侧壁可以作为所述光反射面201。
在一些实施例中,所述凹槽的深度等于所述金属层27的厚度;即凹槽需要贯穿所述金属层27,以使得凹槽对应的位置可以透光,避免金属层27对其下方的发光层10的出光产生阻挡作用。
在一些实施例中,所述金属层27的材料可以包括Al、Ag、以及AlN中的至少一种,所述金属层27的厚度大于或等于1微米。
在本实施例中,所述保护层26覆盖所述金属层27远离所述发光层10的一面以及所述凹槽的侧壁和底面,所述第一色转换部21以及所述第二色转换部23均位于所述保护层26远离所述发光层10的一面并分别位于所述第一凹槽210和所述第三凹槽230中。
在本实施例中,所述发光层10还包括覆盖所述间隔层14、所述第一发光部11、所述第二发光部12以及所述第三发光部13远离所述驱动基板30一侧表面的覆盖层15,而出光功能层20则位于所述覆盖层15远离所述发光层10的一侧。
在一些实施例中,所述覆盖层15的材料可以包括氧化硅层和氮化硅层中的至少一种,所述覆盖层15的厚度大于或等于1000埃。
承上,本申请实施例提供的显示面板可以实现所述显示面板的全彩化显示,且无需进行巨量转移,降低了高分辨率显示面板的工艺难度,可有效实现更高分辨率的显示面板;且本申请实施例中直接通过对所述金属层27进行图案化以形成所述凹槽和所述光反射面201,进而相对于图1所示实施例中采用反光层25来形成所述光反射面201而言,本实施例中用于反光的膜层厚度远大于反光层25,可以有效提高光反射面201的反光效果。
在本申请的一些实施例中,请参照图4,本实施例与图3所示实施例的区别之处在于:所述透光部22包括设置于所述第二凹槽220内的透明填充材料221,所述第二凹槽220朝向所述透明填充材料221的侧壁设置有所述光反射面201。
在一些实施例中,所述透明填充材料221的材料可以包括透明材料,例如可以为透明光阻材料或者聚酯纤维材料。
在一些实施例中,所述第一色转换部21远离所述发光层10一侧的表面、所述第二色转换部23远离所述发光层10一侧的表面、以及所述透光部22远离所述发光层10一侧的表面均可以与所述保护层26远离所述发光层10且位于所述凹槽外的表面相平齐,以提高所述显示面板中膜层的平坦度,减少应力集中现象,提高所述显示面板的良品率。
承上,本申请实施例提供的显示面板可以实现所述显示面板的全彩化显示,且无需进行巨量转移,降低了高分辨率显示面板的工艺难度,可有效实现更高分辨率的显示面板。
在本申请的一些实施例中,请参照图5,其与图2所示实施例的区别之处在于:所述显示面板还包括设置于所述出光功能层20远离所述发光层10一侧的布拉格反射层40,所述布拉格反射层40至少覆盖所述第一色转换部21,所述布拉格反射层40中开设有沿所述第一方向X1对应所述透光部22的通孔401,所述布拉格反射层40反射所述第一颜色光线以及所述第二颜色光线,并至少透过所述第三颜色光线;其中,所述布拉格反射层40可以将所述第一颜色光线反射回所述第一色转换部21,以提高所述第一颜色光线的利用率;另一方面,所述布拉格反射层40还设置有对应所述透光部22的通孔401,因此,所述布拉格反射层40也不会对所述第二颜色光线的出光造成阻挡,以实现所述显示面板的彩色化显示功能。
进一步地,在一些实施例中,所述布拉格反射层40覆盖所述第一色转换部21以及所述第二色转换部23,所述布拉格反射层40中开设有沿所述第一方向X1对应所述透光部22的通孔401,所述布拉格反射层40反射所述第一颜色光线、所述第二颜色光线以及所述第四颜色光线,并透过所述第三颜色光线以及所述第五颜色光线;当所述第一颜色光线、所述第二颜色光线以及所述第四颜色光线均为蓝色光,本申请实施例可以有效减少蓝色光泄露,将蓝色光进行反射并二次利用,可有效提高蓝色光的利用效率。
在一些实施例中,所述布拉格反射层40包括沿所述第一方向X1层叠且交替设置的多个第一子层41和多个第二子层42;其中,所述第一子层41的材料包括氧化硅材料,例如二氧化硅材料,所述第二子层42的材料包括氧化钛材料,例如三氧化二钛材料。
在一些实施例中,所述第一子层41的厚度可以为所述第二颜色光线的波长的四分之一,所述第二子层42的厚度可以为所述第二颜色光线的波长的四分之一。
承上,本申请实施例提供的显示面板可以实现所述显示面板的全彩化显示,且无需进行巨量转移,降低了高分辨率显示面板的工艺难度,可有效实现更高分辨率的显示面板;此外,本申请实施例通过在出光功能层20一侧形成布拉格反射层40,以使得第三颜色光线以及第五颜色光线可以通过,且所述布拉格反射层40中的通孔401可以使得第二颜色光线通过,进而不影响所述显示面板的全彩化显示,且所述布拉格反射层40可以反射第一颜色光线、第二颜色光线以及第四颜色光线,提高了所述显示面板的光线的利用率。
在本申请的一些实施例中,请参照图6,其与图4所示实施例的区别之处在于:所述显示面板还包括设置于所述出光功能层20远离所述发光层10一侧的布拉格反射层40,所述布拉格反射层40至少覆盖所述第一色转换部21,所述布拉格反射层40中开设有沿所述第一方向X1对应所述透光部22的通孔401,所述布拉格反射层40反射所述第一颜色光线以及所述第二颜色光线,并至少透过所述第三颜色光线;其中,所述布拉格反射层40可以将所述第一颜色光线反射回所述第一色转换部21,以提高所述第一颜色光线的利用率;另一方面,所述布拉格反射层40还设置有对应所述透光部22的通孔401,因此,所述布拉格反射层40也不会对所述第二颜色光线的出光造成阻挡,以实现所述显示面板的彩色化显示功能。
进一步地,在一些实施例中,所述布拉格反射层40覆盖所述第一色转换部21以及所述第二色转换部23,所述布拉格反射层40中开设有沿所述第一方向X1对应所述透光部22的通孔401,所述布拉格反射层40反射所述第一颜色光线、所述第二颜色光线以及所述第四颜色光线,并透过所述第三颜色光线以及所述第五颜色光线。
在一具体实施例中,所述第一颜色光线、所述第二颜色光线以及所述第四颜色光线均为蓝色光,本申请实施例可以有效减少蓝色光泄露,将蓝色光进行反射并二次利用,可有效提高蓝色光的利用效率。
在一些实施例中,所述布拉格反射层40包括沿所述第一方向X1层叠且交替设置的多个第一子层41和多个第二子层42;其中,所述第一子层41的材料包括氧化硅材料,例如二氧化硅材料,所述第二子层42的材料包括氧化钛材料,例如三氧化二钛材料。
在一些实施例中,所述第一子层41的厚度可以为所述第二颜色光线的波长的四分之一,所述第二子层42的厚度可以为所述第二颜色光线的波长的四分之一。
承上,本申请实施例提供的显示面板可以实现所述显示面板的全彩化显示,且无需进行巨量转移,降低了高分辨率显示面板的工艺难度,可有效实现更高分辨率的显示面板;此外,本申请实施例通过在出光功能层20一侧形成布拉格反射层40,以使得第三颜色光线以及第五颜色光线可以通过,且所述布拉格反射层40中的通孔401可以使得第二颜色光线通过,进而不影响所述显示面板的全彩化显示,且所述布拉格反射层40可以反射第一颜色光线、第二颜色光线以及第四颜色光线,提高了所述显示面板的光线的利用率。
需要说明的是,本申请实施例提供的显示面板还包括封装层(图中未示出),且封装层可以覆盖于出光功能层20远离发光层10的一侧,或者封装层可以覆盖于布拉格反射层40远离发光层10的一侧。
在一些实施例中,封装层可以为无机层,且无机层的材料可以包括氮化硅或者氧化硅中的至少一种,可以通过化学气相沉积法或者原子层沉积法来制备封装层。
另外,本申请实施例还提供上述实施例中所述的显示面板的制作方法,在一些实施例中,请结合图1、图7以及图8,所述显示面板的制作方法包括:
提供驱动基板30,且所述驱动基板30包括硅材料衬底以及形成于所述硅材料衬底上的驱动电路。
在所述驱动基板30上的沉积键合金属层。
在基板上形成发光材料层,并在发光材料层表面沉积透明导电层和键合金属层,通过键合金属层将发光材料层和驱动基板30键合连接在一起,然后将基板剥离。
对发光材料层进行图案化处理以形成发光层10,且发光层10中形成有多个间隔设置的发光部,例如可以包括间隔设置的第一发光部11、第二发光部12以及第三发光部13。
在一些实施例中,所述第一发光部11可以发出第一颜色光线,所述第二发光部12可以发出第二颜色光线,所述第三发光部13可以发出第四颜色光线,且所述第一颜色光线、所述第二颜色光线以及所述第四颜色光线均可以为蓝色光。
在所述驱动基板30上沉积间隔层14,且间隔层14填充于间隔设置的第一发光部11、第二发光部12以及第三发光部13之间;然后可以将超出多个发光部顶部的间隔层14磨平。
在发光层10远离驱动基板30的一侧沉积介质层24,且介质层24的厚度可以大于或等于1微米。
对介质层24进行图案化处理,以在介质层24中形成多个凹槽,例如多个凹槽可以包括沿第一方向X1与所述第一发光部11对应设置的第一凹槽210、沿所述第一方向X1与所述第二发光部12对应设置的第二凹槽220、以及沿所述第一方向X1与所述第三发光部13对应设置的第三凹槽230,所述第一方向X1为所述显示面板的厚度方向。
其中,所述凹槽的深度小于所述介质层24的厚度,且对应于所述凹槽底部的所述介质层24的厚度大于或等于1000埃;所述凹槽沿第二方向X2上的尺寸大于所述第一发光部11沿所述第二方向X2上的尺寸,所述凹槽沿所述第二方向X2上的尺寸大于所述第二发光部12沿所述第二方向X2上的尺寸,所述凹槽沿所述第二方向X2上的尺寸大于所述第三发光部13沿所述第二方向X2上的尺寸,所述第二方向X2垂直于所述第一方向X1;进而可以使得所述第一发光部11、所述第二发光部12以及所述第三发光部13发出的光线更多的照射至多个所述凹槽内,并经过所述凹槽侧壁的所述光反射面201进行反射,以减少光串扰并提高所述显示面板的出光效率。
在一些实施例中,间隔层14和介质层24的材料均包括氧化硅材料或者氮化硅材料中的至少一种。
在本申请的其他实施例中,当形成图案化的发光层10之后,可以在驱动基板30上沉积介质材料,且所述介质材料填充于相邻的间隔设置的所述第一发光部11、所述第二发光部12以及所述第三发光部13之间,所述介质材料还超出所述第一发光部11、所述第二发光部12以及所述第三发光部13的顶部;接着,对超出所述第一发光部11、所述第二发光部12以及所述第三发光部13顶部的所述介质材料进行图案化处理,以形成多个凹槽,即填充于间隔设置的所述第一发光部11、所述第二发光部12以及所述第三发光部13之间的所述介质材料为所述间隔层14,而超出所述第一发光部11、所述第二发光部12以及所述第三发光部13顶部的所述介质材料为所述介质层24。
承上,接着在所述介质层24远离所述驱动基板30的一侧形成反射金属层,并对反射金属层进行图案化处理,以形成位于凹槽侧壁上的反光层25。
在一些实施例中,所述反光层25的厚度大于或等于500埃,所述反光层25的材料可以包括Al、Ag、以及AlN中的至少一种。
在所述介质层24和所述发光层10远离所述驱动基板30的一侧形成保护层26,且所述保护层26覆盖所述介质层24远离所述发光层10的一面、所述反光层25以及所述凹槽的底面,如图7所示。
在一些实施例中,所述保护层26的厚度大于或等于500埃。
在所述保护层26上形成第一色转换材料层,并对所述第一色转换材料层进行图案化处理,以保留位于所述第一凹槽210内的所述第一色转换材料层,并去除其他位置的所述第一色转换材料层,以形成所述第一色转换部21,如图8所示。
接着,在所述保护层26上形成第二色转换材料层,并对所述第二色转换材料层进行图案化处理,以保留位于所述第三凹槽230内的所述第二色转换材料层,并去除其他位置的所述第二色转换材料层,以形成所述第二色转换部23。
在一些实施例中,所述第一色转换部21用于将第一颜色光线转换为第三颜色光线,所述第二色转换部23用于将第四颜色光线转换为第五颜色光线,且第三颜色光线为红色光和绿色光中的一者,第五颜色光线为红色光和绿色光中的另一者。
然后,在所述保护层26上形成透明材料层,并对所述透明材料层进行图案化处理,以保留位于所述第二凹槽220内的所述透明材料层,并去除其他位置的所述透明材料层,以形成所述透明填充材料221,如图1所示。
在本申请的另一些实施例中,请结合图6、图9以及图11,所述显示面板的制作方法包括:
提供驱动基板30,且所述驱动基板30包括硅材料衬底以及形成于所述硅材料衬底上的驱动电路。
在所述驱动基板30上的沉积键合金属层。
在基板上形成发光材料层,并在发光材料层表面沉积透明导电层和键合金属层,通过键合金属层将发光材料层和驱动基板30键合连接在一起,然后将基板剥离。
对发光材料层进行图案化处理以形成发光层10,且发光层10中形成有多个间隔设置的发光部,例如可以包括间隔设置的第一发光部11、第二发光部12以及第三发光部13。
在一些实施例中,所述第一发光部11可以发出第一颜色光线,所述第二发光部12可以发出第二颜色光线,所述第三发光部13可以发出第四颜色光线,且所述第一颜色光线、所述第二颜色光线以及所述第四颜色光线均可以为蓝色光。
在驱动基板30上沉积间隔层14,且间隔层14填充于间隔设置的第一发光部11、第二发光部12以及第三发光部13之间;然后可以将超出多个发光部顶部的间隔层14磨平。
在发光层10远离驱动基板30的一侧沉积覆盖层15,且覆盖层15的厚度可以大于或等于1000埃。
在本申请的其他实施例中,当形成图案化的发光层10之后,可以在驱动基板30上沉积介质材料,且所述介质材料填充于相邻的间隔设置的所述第一发光部11、所述第二发光部12以及所述第三发光部13之间,所述介质材料还超出所述第一发光部11、所述第二发光部12以及所述第三发光部13的顶部;接着,对超出所述第一发光部11、所述第二发光部12以及所述第三发光部13顶部的所述介质材料进行图案化处理,以形成多个凹槽,即填充于间隔设置的所述第一发光部11、所述第二发光部12以及所述第三发光部13之间的所述介质材料为所述间隔层14,而超出所述第一发光部11、所述第二发光部12以及所述第三发光部13顶部的所述介质材料为所述覆盖层15。
在一些实施例中,所述间隔层14和所述覆盖层15的材料均包括氧化硅材料或者氮化硅材料中的至少一种。
承上,在所述覆盖层15上沉积金属材料层,并对所述金属材料层进行图案化处理,以形成金属层27,且所述金属层27中形成有多个凹槽,例如多个凹槽可以包括沿第一方向X1与所述第一发光部11对应设置的第一凹槽210、沿所述第一方向X1与所述第二发光部12对应设置的第二凹槽220、以及沿所述第一方向X1与所述第三发光部13对应设置的第三凹槽230,所述第一方向X1为所述显示面板的厚度方向。
其中,所述凹槽的深度等于所述金属层27的厚度,且所述金属层27的厚度大于或等于1微米;所述凹槽沿第二方向X2上的尺寸大于所述第一发光部11沿所述第二方向X2上的尺寸,所述凹槽沿所述第二方向X2上的尺寸大于所述第二发光部12沿所述第二方向X2上的尺寸,所述凹槽沿所述第二方向X2上的尺寸大于所述第三发光部13沿所述第二方向X2上的尺寸,所述第二方向X2垂直于所述第一方向X1;进而可以使得所述第一发光部11、所述第二发光部12以及所述第三发光部13发出的光线更多的照射至多个所述凹槽内,并经过所述凹槽侧壁的所述光反射面201进行反射,以减少光串扰并提高所述显示面板的出光效率。
在一些实施例中,所述金属层27的材料可以包括Al、Ag、以及AlN中的至少一种。
在所述金属层27远离所述驱动基板30的一侧形成保护层26,且所述保护层26覆盖所述金属层27远离所述发光层10的一面以及所述凹槽的底面,如图9所示。
在一些实施例中,所述保护层26的厚度大于或等于500埃。
在所述保护层26上形成第一色转换材料层,并对所述第一色转换材料层进行图案化处理,以保留位于所述第一凹槽210内的所述第一色转换材料层,并去除其他位置的所述第一色转换材料层,以形成所述第一色转换部21,如图10所示。
接着,在所述保护层26上形成第二色转换材料层,并对所述第二色转换材料层进行图案化处理,以保留位于所述第三凹槽230内的所述第二色转换材料层,并去除其他位置的所述第二色转换材料层,以形成所述第二色转换部23。
在一些实施例中,所述第一色转换部21用于将第一颜色光线转换为第三颜色光线,所述第二色转换部23用于将第四颜色光线转换为第五颜色光线,且第三颜色光线为红色光和绿色光中的一者,第五颜色光线为红色光和绿色光中的另一者。
然后,在所述保护层26上形成透明材料层,并对所述透明材料层进行图案化处理,以保留位于所述第二凹槽220内的所述透明材料层,并去除其他位置的所述透明材料层,以形成所述透明填充材料221,如图11所示。
在所述保护层26、所述第一色转换部21、所述透光部22以及所述第二色转换部23远离所述驱动基板30的一侧形成布拉格反射层40,且所述布拉格反射层40用于反射第一颜色光线、第二颜色光线以及第四颜色光线,并透过第三颜色光线以及第五颜色光线。
对所述布拉格反射层40进行图案化处理,以在所述布拉格反射层40中形成沿所述第一方向X1对应所述第一发光部11的通孔401,如图6所示。
在一些实施例中,所述布拉格反射层40包括沿所述第一方向X1层叠且交替设置的多个第一子层41和多个第二子层42;其中,所述第一子层41的材料包括氧化硅材料,例如二氧化硅材料,所述第二子层42的材料包括氧化钛材料,例如三氧化二钛材料。
在一些实施例中,所述第一子层41的厚度可以为所述第二颜色光线的波长的四分之一,所述第二子层42的厚度可以为所述第二颜色光线的波长的四分之一。
承上,当所述显示面板处于所述显示状态时,所述第一发光部11发出第一颜色光线,所述第二发光部12发出第二颜色光线,所述第三发光部13发出第四颜色光线,所述第一色转换部21将所述第一颜色光线转换为第三颜色光线,所述第二色转换部23将所述第四颜色光线转换为第五颜色光线,第二颜色光线透过透光部22,进而所述发光层10发出的光经过所述出光功能层20之后,可以发出第二颜色光线、第三颜色光线以及第五颜色光线,例如当所述第一颜色光线、所述第二颜色光线以及所述第四颜色光线均为蓝色光,所述第三颜色光线为红色光和绿色光中的一者,所述第五颜色光线为红色光和绿色光中的另一者,进而本申请实施例提供的显示面板可以实现所述显示面板的全彩化显示,且无需进行巨量转移,降低了高分辨率显示面板的工艺难度,可有效实现更高分辨率的显示面板;此外,本申请实施例通过在所述凹槽的侧壁形成光反射面201,进而可以减少光串扰并提高出光效率;且本申请实施例还可以在所述出光功能层20远离所述发光层10的一侧形成所述布拉格反射层40,以提高光线利用率和出光效率。
另外,本申请实施例还提供一种显示装置,所述显示装置包括装置主体以及所述显示面板,且所述装置主体与所述显示面板组合为一体,且所述显示面板可以为上述实施例中所述的显示面板。
在一些实施例中,所述装置主体可以包括框体、驱动组件以及电源等,在此不做限定。
可以理解的是,本申请实施例提供的显示装置包括上述实施例中所述的显示面板,因此,该显示装置具有与上述实施例中所述的显示面板相同的有益效果,在此不再赘述。
在上述实施例中,对各个实施例的描述都各有侧重,某个实施例中没有详述的部分,可以参见其他实施例的相关描述。
以上对本申请实施例所提供的一种显示面板及显示装置进行了详细介绍,本文中应用了具体个例对本申请的原理及实施方式进行了阐述,以上实施例的说明只是用于帮助理解本申请的技术方案及其核心思想;本领域的普通技术人员应当理解:其依然可以对前述各实施例所记载的技术方案进行修改,或者对其中部分技术特征进行等同替换;而这些修改或者替换,并不使相应技术方案的本质脱离本申请各实施例的技术方案的范围。

Claims (20)

  1. 一种显示面板,其包括:
    发光层,包括间隔设置的第一发光部和第二发光部,所述第一发光部在所述显示面板处于显示状态时发出第一颜色光线,所述第二发光部在所述显示面板处于显示状态时发出第二颜色光线;和
    出光功能层,设置于所述发光层的一侧,所述出光功能层包括:
    第一色转换部,沿第一方向与所述第一发光部对应设置,以及
    透光部,沿所述第一方向与所述第二发光部对应设置;
    其中,所述第一方向为所述显示面板的厚度方向,所述第一色转换部用于将所述第一颜色光线转换为第三颜色光线,所述第三颜色光线与所述第一颜色光线的颜色相异。
  2. 根据权利要求1所述的显示面板,其中,所述出光功能层中开设有多个凹槽,至少一个所述凹槽的侧壁设置有光反射面;
    多个所述凹槽包括沿所述第一方向与所述第一发光部对应设置的第一凹槽、以及沿所述第一方向与所述第二发光部对应设置的第二凹槽,所述第一色转换部设置于所述第一凹槽内,所述透光部设置于所述第二凹槽内。
  3. 根据权利要求2所述的显示面板,其中,所述透光部包括设置于所述第二凹槽内的透明填充材料,所述第二凹槽朝向所述透明填充材料的侧壁设置有所述光反射面。
  4. 根据权利要求2所述的显示面板,其中,所述出光功能层还包括介质层和反光层,所述介质层设置于所述发光层的一侧,所述介质层中开设有多个所述凹槽,所述反光层设置于多个所述凹槽的侧壁,所述反光层朝向所述凹槽的一面为所述光反射面。
  5. 根据权利要求4所述的显示面板,其中,所述凹槽的深度小于或等于所述介质层的厚度。
  6. 根据权利要求2所述的显示面板,其中,所述出光功能层还包括金属层,所述金属层设置于所述发光层的一侧,所述金属层中开设有多个所述凹槽,所述金属层朝向所述凹槽的侧壁为所述光反射面。
  7. 根据权利要求6所述的显示面板,其中,所述凹槽的深度等于所述金属层的厚度。
  8. 根据权利要求2所述的显示面板,其中,所述发光层还包括与所述第一发光部、所述第二发光部均间隔设置的第三发光部,所述第三发光部在所述显示面板处于显示状态时发出第四颜色光线;
    多个所述凹槽包括沿所述第一方向与所述第三发光部对应设置的第三凹槽;
    所述出光功能层包括第二色转换部,所述第二色转换部设置于所述第三凹槽内,所述第二色转换部用于将所述第四颜色光线转换为第五颜色光线,所述第二颜色光线、所述第三颜色光线以及所述第五颜色光线相互为不同颜色的光线。
  9. 根据权利要求8所述的显示面板,其中,所述第一色转换部的材料和所述第二转换部的材料均选自量子点材料或者荧光粉材料。
  10. 根据权利要求8所述的显示面板,其中,所述第一颜色光线、所述第二颜色光线以及所述第四颜色光线均为相同颜色的光线。
  11. 根据权利要求8所述的显示面板,其中,所述第一颜色光线、所述第二颜色光线以及所述第四颜色光线均为蓝色光线,所述第三颜色光线为红色光线和绿色光线中的一者,所述第五颜色光线为红色光线和绿色光线中的另一者。
  12. 根据权利要求2所述的显示面板,其中,所述显示面板还包括保护层,所述保护层覆盖所述出光功能层远离所述发光层的一面;和/或
    所述保护层覆盖所述光反射面。
  13. 根据权利要求1所述的显示面板,其中,所述显示面板还包括设置于所述出光功能层远离所述发光层一侧的布拉格反射层,所述布拉格反射层至少覆盖所述第一色转换部,所述布拉格反射层中开设有沿所述第一方向对应所述透光部的通孔,所述布拉格反射层反射所述第一颜色光线以及所述第二颜色光线,并至少透过所述第三颜色光线。
  14. 根据权利要求13所述的显示面板,其中,所述布拉格反射层包括沿所述第一方向层叠且交替设置的多个第一子层和多个第二子层;
    其中,所述第一子层的材料包括氧化硅材料,所述第二子层的材料包括氧化钛材料。
  15. 一种显示装置,所述显示装置包括显示面板,所述显示面板包括:
    包括:
    发光层,包括间隔设置的第一发光部和第二发光部,所述第一发光部在所述显示面板处于显示状态时发出第一颜色光线,所述第二发光部在所述显示面板处于显示状态时发出第二颜色光线;和
    出光功能层,设置于所述发光层的一侧,所述出光功能层包括:
    第一色转换部,沿第一方向与所述第一发光部对应设置,以及
    透光部,沿所述第一方向与所述第二发光部对应设置;
    其中,所述第一方向为所述显示面板的厚度方向,所述第一色转换部用于将所述第一颜色光线转换为第三颜色光线,所述第三颜色光线与所述第一颜色光线的颜色相异。
  16. 根据权利要求15所述的显示装置,其中,所述出光功能层中开设有多个凹槽,至少一个所述凹槽的侧壁设置有光反射面;
    多个所述凹槽包括沿所述第一方向与所述第一发光部对应设置的第一凹槽、以及沿所述第一方向与所述第二发光部对应设置的第二凹槽,所述第一色转换部设置于所述第一凹槽内,所述透光部设置于所述第二凹槽内。
  17. 根据权利要求16所述的显示装置,其中,所述透光部包括设置于所述第二凹槽内的透明填充材料,所述第二凹槽朝向所述透明填充材料的侧壁设置有所述光反射面。
  18. 根据权利要求16所述的显示装置,其中,所述出光功能层还包括介质层和反光层,所述介质层设置于所述发光层的一侧,所述介质层中开设有多个所述凹槽,所述反光层设置于多个所述凹槽的侧壁,所述反光层朝向所述凹槽的一面为所述光反射面。
  19. 根据权利要求16所述的显示装置,其中,所述出光功能层还包括金属层,所述金属层设置于所述发光层的一侧,所述金属层中开设有多个所述凹槽,所述金属层朝向所述凹槽的侧壁为所述光反射面。
  20. 根据权利要求16所述的显示装置,其中,所述发光层还包括与所述第一发光部、所述第二发光部均间隔设置的第三发光部,所述第三发光部在所述显示面板处于显示状态时发出第四颜色光线;
    多个所述凹槽包括沿所述第一方向与所述第三发光部对应设置的第三凹槽;
    所述出光功能层包括第二色转换部,所述第二色转换部设置于所述第三凹槽内,所述第二色转换部用于将所述第四颜色光线转换为第五颜色光线,所述第二颜色光线、所述第三颜色光线以及所述第五颜色光线相互为不同颜色的光线。
PCT/CN2024/113847 2024-07-17 2024-08-22 显示面板及显示装置 Pending WO2026016255A1 (zh)

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