WO2024016710A1 - 显示面板及显示装置 - Google Patents

显示面板及显示装置 Download PDF

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Publication number
WO2024016710A1
WO2024016710A1 PCT/CN2023/083903 CN2023083903W WO2024016710A1 WO 2024016710 A1 WO2024016710 A1 WO 2024016710A1 CN 2023083903 W CN2023083903 W CN 2023083903W WO 2024016710 A1 WO2024016710 A1 WO 2024016710A1
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WO
WIPO (PCT)
Prior art keywords
layer
filling
display area
protective layer
display panel
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PCT/CN2023/083903
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English (en)
French (fr)
Inventor
吴咏波
Original Assignee
武汉华星光电半导体显示技术有限公司
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Application filed by 武汉华星光电半导体显示技术有限公司 filed Critical 武汉华星光电半导体显示技术有限公司
Priority to US18/266,719 priority Critical patent/US20240032333A1/en
Publication of WO2024016710A1 publication Critical patent/WO2024016710A1/zh

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/80—Constructional details
    • H10K50/84—Passivation; Containers; Encapsulations
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/80—Constructional details
    • H10K50/84—Passivation; Containers; Encapsulations
    • H10K50/844—Encapsulations
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/40—OLEDs integrated with touch screens

Definitions

  • the present application relates to the field of display technology, and specifically to a display panel and a display device.
  • OLED Organic Light-Emitting Diode
  • color filters are used to replace traditional polarizers to achieve higher transmittance. Since the light-shielding layer of the color filter is made of organic photoresist material, it easily absorbs water. When external water vapor invades the inside of the display panel through the light-shielding layer, the light-shielding layer will easily fall off from the substrate under the action of high temperature, thus generating bubbles.
  • Embodiments of the present application provide a display panel and a display device, which can improve the technical problem of bubbles caused by water vapor intrusion in the light-shielding layer of the display panel.
  • An embodiment of the present application provides a display panel, including a display area and a non-display area surrounding at least one side of the display area.
  • the display panel includes: a light-emitting device layer including a plurality of light-emitting parts located in the display area.
  • An encapsulation layer located on the light-emitting device layer; a touch layer, located on the encapsulation layer; a protective layer, located on the touch layer; and a color film layer, including a light-shielding layer and a color resist layer, the light-shielding layer
  • the layer includes a main body part located in the display area and an extension part located in the non-display area, the main body part and the extension part are located on the protective layer, the main body part is provided with a plurality of openings, so
  • the color resist layer includes a plurality of color resists, at least one of the color resists is located in the corresponding opening and faces the corresponding light-emitting part; wherein, the protective layer is provided with at least one located in the non-display area.
  • a groove at least one of the grooves extends along at least one side of the display area.
  • At least one of the trenches is provided with a first filling portion, and the first filling portion and the protective layer are made of different materials.
  • the first filling part and the main body part are made of the same material, and the first filling part is spaced apart from the main body part.
  • At least one of the trenches is further provided with a second filling part, the second filling part covers the first filling part, and the material of the second filling part is different from that of the first filling part.
  • the materials of the protective layer are different.
  • the second filling part is the color resist
  • the top surface of the second filling part away from the first filling part exceeds the top surface of the extension part away from the protective layer
  • the top surface of the first filling part away from the touch layer is located between the bottom surface of the protective layer close to the touch layer and the top surface of the protective layer away from the touch layer, and is opposite to the bottom surface of the protective layer.
  • the colors of the color resists in at least two adjacent grooves are different.
  • At least one of the trenches is further provided with a third filling portion, the third filling portion covers the first filling portion and the extension portion, and the third filling portion also covers the The extension part, the top surface of the third filling part away from the extension part is a flat surface.
  • a second filling part is provided in at least one of the trenches, and the second filling part includes a first part, a second part located on the first part, and a second filling part located on the second part.
  • the third part, the first part, the second part and the third part are made of different materials, and the interface between the first part and the second part is located in the protective layer close to the touch layer between the bottom surface of the protective layer and the top surface of the protective layer away from the touch layer, the interface between the second part and the third part is located at the bottom surface of the extension part close to the protective layer and the extension part between the top surfaces away from the protective layer.
  • the plurality of color resistors include a red color resistor, a blue color resistor and a green color resistor, the first part is the blue color resistor, the second part is the red color resistor, so The third part is the green color resistance.
  • At least one of the trenches is provided with a second filling portion
  • the display area includes two opposite first sides and two opposite second sides, and the first side and the second side intersect, a plurality of the trenches surround the display area and the materials of the second filling portions in at least two adjacent trenches are different, and each of the trenches includes a third portion close to the first side.
  • One section and a second section close to the second side, the first section and the second section are spaced apart at the junction of the first side and the second side, close to one of the first
  • the arrangement order of the plurality of first sections on one side is opposite to the arrangement order of the plurality of first sections close to the other first side, and the arrangement order of the plurality of first sections close to one of the second sides is opposite.
  • the arrangement order of the two sections is opposite to the arrangement order of the plurality of first sections close to the other first side.
  • the display panel further includes a blocking wall located in the non-display area
  • the encapsulating layer includes a first inorganic layer, a second inorganic layer and a barrier located between the first inorganic layer and the second inorganic layer.
  • An organic layer between the inorganic layers, the first inorganic layer and the second inorganic layer are located on the retaining wall, the organic layer is located on the side of the retaining wall close to the display area, at least one The groove is located on a side of the retaining wall away from the display area.
  • the thickness of the extension is 1-1.5 microns
  • the depth of the groove is 3-4 times the thickness of the extension
  • the width of the groove is greater than 10 microns.
  • the spacing of the plurality of grooves gradually decreases in a direction from the display area to the non-display area.
  • An embodiment of the present application also provides a display device, including the display panel as described above.
  • the groove can be provided on the protective layer on the touch layer to extend the The path for water vapor to invade from the interface between the protective layer and the light-shielding layer can thereby improve the abnormal phenomenon of bubbles in the light-shielding layer.
  • Figure 1 is a schematic top view of a display panel provided by an embodiment of the present application.
  • Figure 2 is a schematic cross-sectional view of the display panel in Figure 1;
  • Figure 3A is a schematic cross-sectional view of the display panel in the non-display area provided by the embodiment of the present application;
  • Figure 3B is a schematic cross-sectional view of the display panel in the non-display area provided by the embodiment of the present application;
  • Figure 4A is a schematic cross-sectional view of the display panel in the non-display area provided by the embodiment of the present application;
  • Figure 4B is a schematic cross-sectional view of the display panel in the non-display area provided by the embodiment of the present application.
  • FIG. 5 is a schematic top view of a display panel provided by an embodiment of the present application.
  • an embodiment of the present application provides a display panel 1000.
  • the display panel 1000 may be an organic light-emitting diode (OLED, Organic Light-Emitting Diode) display panel, a micro-light-emitting diode display panel, or a mini light-emitting diode. display panel.
  • OLED Organic Light-Emitting Diode
  • the display panel 1000 is an OLED display panel.
  • the display panel 1000 includes a display area DA and a non-display area NDA.
  • the display area DA may be an area for setting sub-pixels of a display image.
  • the non-display area NDA may be an area used to provide a driving unit such as a gate driving circuit that provides a driving signal to a pixel driving circuit of a sub-pixel, and an area used to provide some wiring lines that provide a signal to the driving unit.
  • a driving unit such as a gate driving circuit that provides a driving signal to a pixel driving circuit of a sub-pixel, and an area used to provide some wiring lines that provide a signal to the driving unit.
  • the non-display area NDA generally no sub-pixels for display are provided.
  • the non-display area NDA may be disposed on at least one side of the display area DA to at least partially surround the display area DA.
  • the display panel 1000 includes a substrate 1 , a pixel driving circuit layer 2 located on the substrate 1 , a pixel definition layer 3 located on the pixel driving circuit layer 2 , and a pixel driving circuit layer 2 located on the pixel driving circuit layer 2 .
  • the substrate 1 is used to carry a film layer disposed thereon.
  • the substrate 1 may include a single layer of insulating material such as glass, quartz and polymer resin, or a multi-layer insulating material such as a double layer of polymer resin.
  • the substrate 1 may be a rigid substrate 1 or a flexible substrate 1 .
  • the pixel driving circuit layer 2 is used to drive the light emitting device layer 4 to emit light.
  • the pixel driving circuit layer 2 includes a semiconductor layer and a plurality of metal layers to form at least one capacitor and a plurality of thin film transistors. Multiple pixel drive circuits. Exemplarily, at least one of the pixel driving circuits may include at least one of the capacitors and a plurality of the thin film transistors.
  • the pixel definition layer 3 may include resins such as polyacrylates or polyimides, and silica series inorganic substances.
  • the pixel definition layer 3 is provided with a plurality of openings.
  • the light-emitting device layer 4 includes a plurality of light-emitting parts 40 located in the display area DA. At least part of the light-emitting part 40 is located in the corresponding opening. Each light-emitting part 40 includes a first electrode, a light-emitting unit and a second electrode.
  • the first electrode may be an anode, and the anode may have stacked indium tin oxide (ITO: Indium-Tin-Oxide), indium zinc oxide (IZO: Indium-Zinc-Oxide), zinc oxide (ZnO), oxide Indium (In2O3: Induim Oxide) has a higher work function material layer and such as silver (Ag), magnesium (Mg), aluminum (Al), platinum (Pt), palladium (Pd), gold (Au), nickel (Ni) ), neodymium (Nd), iridium (Ir), chromium (Cr), lithium (Li), calcium (Ca) or a mixture thereof, but is not limited to this.
  • ITO Indium-Tin-Oxide
  • IZO Indium-Zinc-Oxide
  • ZnO oxide Indium
  • In2O3 Induim Oxide
  • the light-emitting unit may include an organic light-emitting part, and may further include a hole injection/transport part and/or an electron injection/transport part.
  • the second electrode may be a cathode, and the cathodes of a plurality of the light-emitting parts 40 may be connected to each other to form a full-surface electrode.
  • the cathode may include materials such as Li, Ca, LiF/Ca, LiF/Al, Al, Mg, Ag, Pt, Pd, Ni, Au, Nd, Ir, Cr, BaF2, Ba or compounds or mixtures thereof (e.g., Ag Mixtures with Mg, etc.) are layers of matter with smaller work functions.
  • the cathode may further include a transparent metal oxide layer disposed on the material layer with a smaller work function.
  • the encapsulation layer 5 may include at least one inorganic layer and at least one organic layer.
  • the encapsulation layer 5 may include a first inorganic layer 51 and a second inorganic layer 53 and an organic layer 52 between them.
  • the first inorganic layer 51 and the second inorganic layer 53 may include at least one inorganic insulating material selected from aluminum oxide, titanium oxide, tantalum oxide, hafnium oxide, zinc oxide, silicon oxide, silicon nitride and silicon oxynitride.
  • the organic layer 52 may include polymer-based materials. Examples of polymeric materials may include acrylic, epoxy, polyimide, and/or polyethylene.
  • the touch layer 6 can realize the touch function through self-capacitance or mutual capacitance.
  • the protective layer 7 is used to protect the touch layer 6 .
  • the protective layer 7 includes polyimide-based organic photoresist, and the thickness may be 4-5 microns.
  • the color filter layer 8 is used to reduce interference from ambient light, and includes a light shielding layer 80 and a color resist layer.
  • the light shielding layer 80 may include a black photoresist material, including a main body portion 81 located in the display area DA and an extension portion 82 located in the non-display area NDA.
  • the main body part 81 is provided with a plurality of openings, and the thickness of the extension part 82 is 1 micron-1.5 micron.
  • the color resist layer may include a pigment-doped photoresist material, including a plurality of color resists 86 . At least one of the color resists 86 is located in the corresponding opening and faces the corresponding light-emitting part 40 .
  • the extension portion 82 is provided with at least one trench 720 located in the non-display area NDA, and the at least one trench 720 extends along at least one side of the display area DA.
  • the width of the groove 720 is set to be greater than 10 microns.
  • the display panel 1000 further includes a barrier DAM located in the non-display area NDA, and the pixel definition layer 3 or the flat layer of the pixel driving circuit layer 2 may include at least part of the barrier DAM.
  • the first inorganic layer 51 and the second inorganic layer 53 of the encapsulation layer 5 are located on the barrier DAM, and the organic layer 52 is located on a side of the barrier DAM close to the display area DA. side, at least one of the grooves 720 is located on a side of the retaining wall DAM away from the display area DA.
  • the water vapor can be extended to flow between the protective layer 7 and the light-shielding layer.
  • the intrusion path of the interface 80 is thereby improved, thereby improving the abnormal phenomenon of bubbles generated in the light-shielding layer 80 under the action of high temperature.
  • the groove 720 is located on the side of the retaining wall DAM away from the display area DA, which can further prevent water vapor from affecting the light-emitting layer.
  • At least one of the trenches 720 is provided with a first filling portion 91 , and the material of the first filling portion 91 is different from the material of the protective layer 7 .
  • external water vapor needs to pass through the interface between the first filling part 91 and the protective layer 7 in order to invade the main part 81 of the light-shielding layer 80 located in the display area DA, further increasing the waterproof vapor performance.
  • the first filling part 91 and the main body part 81 are spaced apart and made of the same material.
  • the depth of the groove 720 is 3 to 4 times the thickness of the extension part 82 , so that the first filling part 91 falling into the groove 720 is disconnected from the main part 81 . In this way, by disconnecting the light shielding layer 80 to fill the trench 720, material can be saved.
  • At least one of the trenches 720 is provided with a second filling part 92
  • the second filling part 92 includes a first part 921 , and a second filling part 92 located on the first part 921 .
  • the second part 922 and the third part 923 located on the second part 922 are made of different materials.
  • the interface between the first part 921 and the second part 922 is located between the bottom surface of the protective layer 7 close to the touch layer 6 and the top surface of the protective layer 7 away from the touch layer 6,
  • the interface between the second part 922 and the third part 923 is located between the bottom surface of the extension part 82 close to the protective layer 7 and the top surface of the extension part 82 away from the protective layer 7 .
  • the top surface of the portion 923 away from the second portion 922 exceeds the top surface of the extension portion 82 away from the protective layer 7 .
  • multiple interfaces ie, the interface between the first part 921 and the second part 922, the interface between the second part 922 and the third part 923 are formed in the vertical direction, and in the horizontal direction Multiple interfaces are also staggered from each other in the direction, which can further enhance the water vapor interception effect.
  • the plurality of color resistors 86 include red color resistor, blue color resistor and green color resistor, the first part 921 is the blue color resistor, the second part 922 is the red color resistor, and the The third part 923 is the green color resistor.
  • the main body material of the first part 921 , the second part 922 and the third part 923 is the same, the interface between them has fewer defects, and the waterproof performance is better than that of the protective layer 7 and the extension.
  • the interface between the parts 82 can further ensure the waterproof vapor effect.
  • the stacked red, green and blue color resistors can also enhance the light-shielding effect at the trench 720 .
  • the trenches 720 are also filled with second filling portions 92 , and the second filling portions 92 are filled in the corresponding trenches 720 and cover the third filling portions 92 .
  • a filling part 91 , the material of the second filling part 92 is different from the materials of the first filling part 91 and the protective layer 7 .
  • the second filling part 92 is the color resistor 86 , and the colors of the color resistors 86 in two adjacent grooves 720 are different.
  • the top surface of the second filling part 92 away from the first filling part 91 exceeds the top surface of the extension part 82 away from the protective layer 7 , and the top surface of the first filling part 91 away from the touch layer
  • the top surface of 6 is located between the bottom surface of the protective layer 7 close to the touch layer 6 and the top surface of the protective layer 7 away from the touch layer 6 . In this way, by using the color resist layer to fill the trench 720, material can be saved. Materials can be saved and the process is simpler.
  • the trench 720 is also filled with a third filling part 93 , and the third filling part 93 covers the first filling part 91 and the extension part 82 .
  • the top surface of the third filling portion 93 away from the extension portion 82 is a flat surface.
  • the third filling part 93 may be an OC (Over Coating) layer. In this way, the film layer in the non-display area NDA can be made flatter.
  • the display area DA is generally rectangular, including two opposite first sides and two opposite second sides.
  • the first side and the The second side intersects, a plurality of the trenches 720 surround the display area DA, and the materials of the second filling portions 92 in the plurality of trenches 720 are different, for example, at least two of the trenches 720 are filled with colors.
  • Different color resistors 86 such as blue color resistor 86B, red color resistor 86R and green color resistor 86G.
  • Each of the trenches 720 includes a first section near the first side and a second section near the second side, the first section and the second section between the first side and the second side.
  • the junctions on the second side are spaced apart.
  • a plurality of first segments close to one of the first sides are arranged in the same order as a plurality of first segments close to the other first side.
  • the arrangement order of the first sections is opposite, and the arrangement order of the plurality of second sections close to one of the second sides is the same as the arrangement order of the plurality of first sections close to the other first side. Cloth order is reversed. In this way, by interrupting the groove 720, the water vapor intrusion path can be further extended.
  • the spacing of the plurality of trenches 720 gradually decreases. In this way, denser grooves 720 are provided in areas closer to external water vapor, which can enhance the waterproofing effect.
  • the display panel 1000 is further provided with a water storage tank that at least penetrates the protective layer 7 and the extension portion 82 , and the depth of the water storage tank is greater than the depth of the plurality of trenches 720 .
  • the distance between the water storage tank and the outermost groove 720 is greater than the distance between the two adjacent grooves 720 , and water-absorbing material is provided in the water storage tank. In this way, by pre-setting the water vapor storage tank for storing external water vapor, the water vapor intruding into the surface can be reduced.
  • the display device is a device with a display function.
  • the display device may be a device that displays video or still images, including fixed terminals such as televisions, desktop computers, monitors, and billboards, and may also include mobile terminals such as Mobile phones, tablet computers, mobile communication terminals, electronic notepads, e-books, multimedia players, navigators, laptops, and may also include wearable electronic devices such as smart watches, smart glasses, virtual reality devices, and augmented reality devices.

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Abstract

本申请提供一种显示面板及显示装置。所述显示面板包括：发光器件层；封装层，位于所述发光器件层上；触控层，位于所述封装层上；保护层，位于所述触控层上；以及彩膜层，包括遮光层，所述遮光层位于所述保护层上；其中，所述保护层设有位于所述非显示区内的至少一沟槽，至少一所述沟槽沿所述显示区的至少一侧延伸。

Description

显示面板及显示装置 技术领域
本申请涉及显示技术领域，具体涉及一种显示面板及一种显示装置。
 背景技术
在现有的有机发光二极管（OLED，Organic Light-Emitting Diode）显示面板中，利用彩色滤光片（Color Filter），取代传统的偏光片，以达到更高的透过率。由于彩色滤光片的遮光层为有机光阻材料，易吸水。当外界水汽通过遮光层入侵到显示面板内部时，在高温的作用下，遮光层很容易与基板发生脱落，从而产生气泡。
 技术问题
本申请实施例提供一种显示面板及一种显示装置，可以改善显示面板的遮光层因水汽入侵导致产生气泡的技术问题。
 技术解决方案
本申请的实施例提供一种显示面板，包括显示区和围绕所述显示区至少一侧的非显示区，所述显示面板包括：发光器件层，包括位于所述显示区内的多个发光部；封装层，位于所述发光器件层上；触控层，位于所述封装层上；保护层，位于所述触控层上；以及彩膜层，包括遮光层和色阻层，所述遮光层包括位于所述显示区内的主体部和位于所述非显示区内的延伸部，所述主体部和所述延伸部位于所述保护层上，所述主体部设有多个开口，所述色阻层包括多个色阻，至少一所述色阻位于对应的所述开口内且正对对应的所述发光部；其中，所述保护层设有位于所述非显示区内的至少一沟槽，至少一所述沟槽沿所述显示区的至少一侧延伸。
在一些实施例中，至少一所述沟槽内设有第一填充部，所述第一填充部与所述保护层的材料不同。
在一些实施例中，所述第一填充部与所述主体部的材料相同，且所述第一填充部与所述主体部间隔设置。
在一些实施例中，至少一所述沟槽内还设有第二填充部，所述第二填充部覆盖所述第一填充部，所述第二填充部的材料与所述第一填充部和所述保护层的材料均不同。
在一些实施例中，所述第二填充部为所述色阻，所述第二填充部的远离所述第一填充部的顶面超出所述延伸部的远离所述保护层的顶面，所述第一填充部的远离所述触控层的顶面位于所述保护层的靠近所述触控层的底面和所述保护层的远离所述触控层的顶面之间，且相邻的至少两所述沟槽内的所述色阻的颜色不同。
在一些实施例中，至少一所述沟槽内还设有第三填充部，所述第三填充部覆盖所述第一填充部和所述延伸部，所述第三填充部还覆盖所述延伸部，所述第三填充部的远离所述延伸部的顶面为平坦表面。
在一些实施例中，至少一所述沟槽内设有第二填充部，所述第二填充部包括第一部、位于所述第一部上的第二部、位于所述第二部上的第三部，所述第一部、所述第二部和所述第三部的材料不同，所述第一部和所述第二部的界面位于所述保护层靠近所述触控层的底面和所述保护层的远离所述触控层的顶面之间，所述第二部和所述第三部的界面位于所述延伸部靠近所述保护层的底面和所述延伸部的远离所述保护层的顶面之间。
在一些实施例中，多个所述色阻包括红色色阻、蓝色色阻和绿色色阻，所述第一部为所述蓝色色阻，所述第二部为所述红色色阻，所述第三部为所述绿色色阻。
在一些实施例中，至少一所述沟槽内设有第二填充部，所述显示区包括相对的两第一侧和相对的两第二侧，所述第一侧与所述第二侧相交，多个所述沟槽围绕所述显示区且至少两相邻的所述沟槽内的所述第二填充部的材料不同，每一所述沟槽包括靠近所述第一侧的第一段和靠近所述第二侧的第二段，所述第一段和所述第二段在所述第一侧和所述第二侧的交界处间隔设置，靠近其中一所述第一侧的多个所述第一段的排布顺序与靠近另一所述第一侧的多个所述第一段的排布顺序相反，靠近其中一所述第二侧的多个所述第二段的排布顺序与靠近另一所述第一侧的多个所述第一段的排布顺序相反。
在一些实施例中，所述显示面板还包括位于所述非显示区内的挡墙，所述封装层包括第一无机层、第二无机层和位于所述第一无机层和所述第二无机层之间的有机层，所述第一无机层和所述第二无机层位于所述挡墙之上，所述有机层位于所述挡墙的靠近所述显示区的一侧，至少一所述沟槽位于所述挡墙的远离所述显示区的一侧。
在一些实施例中，所述延伸部的厚度为1微米-1.5微米，所述沟槽的深度为所述延伸部的厚度的3倍-4倍，所述沟槽的宽度大于10微米。
在一些实施例中，在由所述显示区指向所述非显示区的方向上，多个所述沟槽的间距逐渐减小。
本申请的实施例还提供一种显示装置，包括如上任一所述的显示面板。
 有益效果
相较于现有技术，在本申请的实施例提供的显示面板及显示装置中，由于水汽一般是从膜层的界面入侵，通过所述触控层上的保护层上设置沟槽，可以延长水汽由所述保护层与所述遮光层的界面入侵的路径，进而改善遮光层产生气泡的异常现象。
 附图说明
图1是本申请实施例提供的显示面板的俯视示意图；
图2是图1中的显示面板的截面示意图；
图3A是本申请实施例提供的显示面板在非显示区内的截面示意图；
图3B是本申请实施例提供的显示面板在非显示区内的截面示意图；
图4A是本申请实施例提供的显示面板在非显示区内的截面示意图；
图4B是本申请实施例提供的显示面板在非显示区内的截面示意图；
图5是本申请实施例提供的显示面板的俯视示意图。
 本发明的实施方式
为使本申请的目的、技术方案及效果更加清楚、明确，以下参照附图并举实施例对本申请进一步详细说明。应当理解，此处所描述的具体实施例仅用以解释本申请，并不用于限定本申请。
如图1所示，本申请的实施例提供一种显示面板1000，所述显示面板1000可以是有机发光二极管（OLED，Organic Light-Emitting Diode）显示面板，微发光二极管显示面板，或者迷你发光二极管显示面板。示例性地，所述显示面板1000为OLED显示面板。
所述显示面板1000包括显示区DA和非显示区NDA。所述显示区DA可以是用于设置显示图像的子像素的区域。所述非显示区NDA可以是用于设置为子像素的像素驱动电路提供驱动信号的驱动单元如栅极驱动电路，以及用于设置为所述驱动单元提供信号的一些走线的区域。在所述非显示区NDA内，一般没有设置用于显示的子像素。所述非显示区NDA可以设置在所述显示区DA的至少一侧，以至少部分地围绕所述显示区DA。
请参阅图2，所述显示面板1000包括基板1、位于所述基板1上的像素驱动电路层2、位于所述像素驱动电路层2上的像素定义层3、位于所述像素驱动电路层2上的发光器件层4、位于所述发光器件层4上的封装层5、位于所述封装层5上的触控层6、位于所述触控层6上的保护层7，以及位于所述保护层7上的彩膜层8。
所述基板1用于承载设置于其上的膜层。所述基板1可以包括如玻璃、石英和聚合物树脂的单层绝缘材料，或者如双层聚合物树脂的多层绝缘材料。所述基板1可以是刚性基板1，或者柔性基板1。
所述像素驱动电路层2用于驱动所述发光器件层4发光。所述像素驱动电路层2，包括半导体层和多个金属层，以形成至少一电容和多个薄膜晶体管。多个像素驱动电路。示例性地，至少一所述像素驱动电路可以包括至少一所述电容和多个所述薄膜晶体管。
所述像素定义层3可以包含聚丙烯酸酯类（polyacrylates）或者聚酰亚胺类（polyimides）等的树脂和二氧化硅系列的无机物等。所述像素定义层3设有多个开孔。
所述发光器件层4，包括位于所述显示区DA内的多个发光部40。所述发光部40的至少部分位于对应的所述开孔内。每一所述发光部40包括第一电极、发光单元和第二电极。所述第一电极可以是阳极，所述阳极可以具有层叠铟锡氧化物（ITO：Indium-Tin-Oxide）、铟锌氧化物（IZO：Indium-Zinc-Oxide）、氧化锌（ZnO）、氧化铟（In2O3：Induim Oxide）的功函数较高的物质层和诸如银（Ag）、镁（Mg）、铝（Al）、铂（Pt）、钯（Pd）、金（Au）、镍（Ni）、钕（Nd）、铱（Ir）、铬（Cr）、锂（Li）、钙（Ca）或其混合物的反射性物质层的层叠膜结构，但并不局限于此。所述发光单元可以包括有机发光部，并且还可以包括空穴注入/传输部和/或电子注入/传输部。所述第二电极可以是阴极，多个所述发光部40的阴极可以相互连接，形成整面的电极。所述阴极可以包括诸如Li、Ca、LiF/Ca、LiF/Al、Al、Mg、Ag、Pt、Pd、Ni、Au、Nd、Ir、Cr、BaF2、Ba或其化合物或混合物（例如，Ag与Mg的混合物等）的功函数较小的物质层。所述阴极还可以包括布置于所述功函数较小的物质层上的透明金属氧化物层。
所述封装层5可以包括至少一个无机层和至少一个有机层。在一些实施例中，所述封装层5可以包括第一无机层51和第二无机层53以及位于它们之间的有机层52。所述第一无机层51和所述第二无机层53可以包括氧化铝、氧化钛、氧化钽、氧化铪、氧化锌、氧化硅、氮化硅和氮氧化硅中的至少一种无机绝缘材料。所述有机层52可以包括聚合物类材料。聚合物类材料的示例可以包括丙烯酸树脂、环氧树脂、聚酰亚胺和/或聚乙烯。
所述触控层6，可以通过自容或者互容的方式，来实现触控功能。
所述保护层7，用于保护所述触控层6。所述保护层7包括聚亚酰胺类的有机光阻，厚度可以是4微米-5微米。
所述彩膜层8，用于减少环境光的干扰，包括遮光层80和色阻层。所述遮光层80可以包括黑色光阻材料，包括位于所述显示区DA内的主体部81和位于所述非显示区NDA的延伸部82。所述主体部81设有多个开口，所述延伸部82的厚度为1微米-1.5微米。所述色阻层可以包括掺杂色素的光阻材料，包括多个色阻86，至少一所述色阻86位于对应的所述开口内且正对对应的所述发光部40。其中，所述延伸部82设有位于所述非显示区NDA内的至少一沟槽720，至少一所述沟槽720沿所述显示区DA的至少一侧延伸。考虑到遮光层材料的特性，遮光层与下层材料的接触宽度太小，会容易脱落，所以所述沟槽720的宽度设置为大于10微米。
所述显示面板1000还包括位于所述非显示区NDA内的挡墙DAM，所述像素定义层3或所述像素驱动电路层2的平坦层可以包括所述挡墙DAM的至少部分。所述封装层5的所述第一无机层51和所述第二无机层53位于所述挡墙DAM之上，所述有机层52位于所述挡墙DAM的靠近所述显示区DA的一侧，至少一所述沟槽720位于所述挡墙DAM的远离所述显示区DA的一侧。
在本申请的实施例提供的所述显示面板1000中，通过在保护所述触控层6的所述保护层7上设置沟槽720，可以延长水汽由所述保护层7与所述遮光层80的界面的入侵路径，进而改善遮光层80在高温的作用下产生气泡的异常现象。并且，所述沟槽720位于所述挡墙DAM的远离所述显示区DA的一侧，可以进一步防止水汽影响发光层。
在其他的实施例中，请参阅图3A，至少一所述沟槽720内设有第一填充部91，所述第一填充部91的材料与所述保护层7的材料不同。这样，外界的水汽还需要通过第一填充部91与所述保护层7的界面，才能入侵到所述遮光层80的位于显示区DA内的主体部81，进一步增加了防水汽性能。
示例性地，所述第一填充部91与所述主体部81间隔设置且材料相同。其中，所述沟槽720的深度为所述延伸部82的厚度的3倍-4倍，以使得落入所述沟槽720内的所述第一填充部91与所述主体部81断开。这样，通过将所述遮光层80断开以填充所述沟槽720，可以节省材料。
在其他的实施例中，请参阅图3B，至少一所述沟槽720内设有第二填充部92，所述第二填充部92包括第一部921、位于所述第一部921上的第二部922、位于所述第二部922上的第三部923，所述第一部921、所述第二部922和所述第三部923的材料不同。所述第一部921和所述第二部922的界面位于所述保护层7靠近所述触控层6的底面和所述保护层7的远离所述触控层6的顶面之间，所述第二部922和所述第三部923的界面位于所述延伸部82靠近所述保护层7的底面和所述延伸部82的远离所述保护层7的顶面之间，第三部923的远离所述第二部922的顶面超出所述延伸部82的远离所述保护层7的顶面。这样，在竖直方向上形成了多个界面（即所述第一部921和所述第二部922的界面，所述第二部922和所述第三部923的界面），并且在水平方向上多个界面也相互错开，可进一步加强水汽拦截效果。
其中，多个所述色阻86包括红色色阻、蓝色色阻和绿色色阻，所述第一部921为所述蓝色色阻，所述第二部922为所述红色色阻，所述第三部923为所述绿色色阻。这样，通过利用色阻层来填充所述沟槽720，可以节省材料。并且，所述第一部921、所述第二部922和所述第三部923的主体材料相同，它们之间的界面的缺陷更少，防水性能优于所述保护层7和所述延伸部82之间的界面，能够进一步保证防水汽效果。此外，堆叠的红色、绿色和蓝色色阻还可以加强所述沟槽720处的遮光效果。
在其他的实施例中，请参阅图4A，所述沟槽720内还填充有第二填充部92，所述第二填充部92填充于对应的所述沟槽720内，且覆盖所述第一填充部91，所述第二填充部92的材料与所述第一填充部91和所述保护层7的材料均不同。
示例性地，所述第二填充部92为所述色阻86，且相邻的两所述沟槽720内的所述色阻86的颜色不同。所述第二填充部92的远离所述第一填充部91的顶面超出所述延伸部82的远离所述保护层7的顶面，所述第一填充部91的远离所述触控层6的顶面位于所述保护层7的靠近所述触控层6的底面和所述保护层7的远离所述触控层6的顶面之间。这样，通过利用色阻层来填充所述沟槽720，可以节省材料。可以节省材料，并且工艺更简单。
在其他的实施例中，请参阅图4B，所述沟槽720内还填充有第三填充部93，所述第三填充部93覆盖所述第一填充部91和所述延伸部82。所述第三填充部93的远离所述延伸部82的顶面为平坦表面。所述第三填充部93可以是OC（Over Coating）层。这样，可以使得非显示区NDA内的膜层更平坦。
在其他的实施例中，请参阅图2、图4A和图5，所述显示区DA大致呈矩形，包括相对的两第一侧和相对的两第二侧，所述第一侧与所述第二侧相交，多个所述沟槽720围绕所述显示区DA且多个所述沟槽720内的所述第二填充部92的材料不同，例如，至少两所述沟槽720填充颜色不同的所述色阻86，例如蓝色色阻86B，红色色阻86R和绿色色阻86G。每一所述沟槽720包括靠近所述第一侧的第一段和靠近所述第二侧的第二段，所述第一段和所述第二段在所述第一侧和所述第二侧的交界处间隔设置。在由所述显示区DA指向所述非显示区NDA的方向上，靠近其中一所述第一侧的多个所述第一段的排布顺序与靠近另一所述第一侧的多个所述第一段的排布顺序相反，靠近其中一所述第二侧的多个所述第二段的排布顺序与靠近另一所述第一侧的多个所述第一段的排布顺序相反。这样，通过将所述沟槽720打断，可以进一步延长水汽入侵路径。
在其他的实施例中，在由所述显示区DA指向所述非显示区NDA的方向上，多个所述沟槽720的间距逐渐减小。这样，在越靠近外界水汽的区域设置更密集的沟槽720，可以加强防水汽效果。
在可能的实施例中，所述显示面板1000还设有至少贯穿所述保护层7和所述延伸部82的储水槽，所述储水槽的深度均大于多个所述沟槽720的深度，所述储水槽与最外侧的所述沟槽720的距离，大于相邻的两所述沟槽720的距离，所述储水槽中设有吸水材料。这样，通过预先设置用于储存外界水汽的储水槽，可以减少入侵到面内的水汽。
本申请的实施例还提供一种显示装置，包括上述的显示面板1000。所述显示装置是具有显示功能的装置，示例性地，所述显示装置可以是显示视频或静止图像的装置，包括固定终端诸如电视、台式计算机、监视器、广告牌，也可以包括移动终端诸如移动电话、平板电脑、移动通信终端、电子记事本、电子书、多媒体播放器、导航仪、笔记本电脑，还可以包括穿戴式电子设备诸如智能手表、智能眼镜、虚拟现实设备、增强现实设备。
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方法及其核心思想；同时，对于本领域的技术人员，依据本申请的思想，在具体实施方式及应用范围上均会有改变之处，综上所述，本说明书内容不应理解为对本申请的限制。

Claims (20)

  1. 一种显示面板，包括显示区和围绕所述显示区至少一侧的非显示区，其中，所述显示面板包括：
    发光器件层，包括位于所述显示区内的多个发光部；
    封装层，位于所述发光器件层上；
    保护层，位于所述封装层上；以及
    彩膜层，设置在所述保护层上，所述彩膜层包括遮光层和色阻层，所述遮光层包括位于所述显示区内的主体部和位于所述非显示区内的延伸部，所述主体部设有多个与所述发光部对应设置的开口，所述色阻层包括多个色阻，至少一所述色阻位于对应的所述开口设置；
    其中，所述保护层设有位于所述非显示区内的至少一沟槽，所述遮光层在所述非显示区的所述沟槽处断开。
  2. 根据权利要求1所述的显示面板，其中，至少一所述沟槽内设有第一填充部，所述第一填充部与所述保护层的材料不同。
  3. 根据权利要求2所述的显示面板，其中，所述第一填充部与所述主体部的材料相同，且所述第一填充部与所述主体部间隔设置。
  4. 根据权利要求2所述的显示面板，其中，至少一所述沟槽内还设有第二填充部，所述第二填充部覆盖所述第一填充部，所述第二填充部的材料与所述第一填充部和所述保护层的材料均不同。
  5. 根据权利要求4所述的显示面板，其中，所述显示面板还包括位于所述封装层和所述保护层之间的触控层，所述第二填充部为所述色阻，所述第二填充部的远离所述第一填充部的顶面超出所述延伸部的远离所述保护层的顶面，所述第一填充部的远离所述触控层的顶面位于所述保护层的靠近所述触控层的底面和所述保护层的远离所述触控层的顶面之间，且相邻的至少两所述沟槽内的所述色阻的颜色不同。
  6. 根据权利要求2所述的显示面板，其中，至少一所述沟槽内还设有第三填充部，所述第三填充部覆盖所述第一填充部和所述延伸部，所述第三填充部的远离所述延伸部的顶面为平坦表面，所述第三填充部的材料与所述第一填充部和所述保护层的材料均不同。
  7. 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位于所述封装层和所述保护层之间的触控层，至少一所述沟槽内设有第二填充部，所述第二填充部包括第一部、位于所述第一部上的第二部、位于所述第二部上的第三部，所述第一部、所述第二部和所述第三部的材料不同，所述第一部和所述第二部的界面位于所述保护层靠近所述触控层的底面和所述保护层的远离所述触控层的顶面之间，所述第二部和所述第三部的界面位于所述延伸部靠近所述保护层的底面和所述延伸部的远离所述保护层的顶面之间。
  8. 根据权利要求7所述的显示面板，其中，多个所述色阻包括红色色阻、蓝色色阻和绿色色阻，所述第一部为所述蓝色色阻，所述第二部为所述红色色阻，所述第三部为所述绿色色阻。
  9. 根据权利要求1所述的显示面板，其中，至少一所述沟槽内设有第二填充部，所述显示区包括相对的两第一侧和相对的两第二侧，所述第一侧与所述第二侧相交，多个所述沟槽围绕所述显示区且至少两相邻的所述沟槽内的所述第二填充部的材料不同，每一所述沟槽包括靠近所述第一侧的第一段和靠近所述第二侧的第二段，所述第一段和所述第二段在所述第一侧和所述第二侧的交界处间隔设置，靠近其中一所述第一侧的多个所述第一段的排布顺序与靠近另一所述第一侧的多个所述第一段的排布顺序相反，靠近其中一所述第二侧的多个所述第二段的排布顺序与靠近另一所述第一侧的多个所述第一段的排布顺序相反。
  10. 根据权利要求1所述的显示面板，其中，还包括位于所述非显示区内的挡墙，所述封装层包括第一无机层、第二无机层和位于所述第一无机层和所述第二无机层之间的有机层，所述第一无机层和所述第二无机层位于所述挡墙之上，所述有机层位于所述挡墙的靠近所述显示区的一侧，至少一所述沟槽位于所述挡墙的远离所述显示区的一侧。
  11. 根据权利要求1所述的显示面板，其中，所述延伸部的厚度为1微米-1.5微米，所述沟槽的深度为所述延伸部的厚度的3倍-4倍，所述沟槽的宽度大于10微米。
  12. 根据权利要求1所述的显示面板，其中，在由所述显示区指向所述非显示区的方向上，多个所述沟槽的间距逐渐减小。
  13. 一种显示装置，其中，包括显示面板，所述显示面板包括显示区和围绕所述显示区至少一侧的非显示区，所述显示面板包括：
    发光器件层，包括位于所述显示区内的多个发光部；
    封装层，位于所述发光器件层上；
    保护层，位于所述封装层上；以及
    彩膜层，设置在所述保护层上，所述彩膜层包括遮光层和色阻层，所述遮光层包括位于所述显示区内的主体部和位于所述非显示区内的延伸部，所述主体部设有多个与所述发光部对应设置的开口，所述色阻层包括多个色阻，至少一所述色阻位于对应的所述开口设置；
    其中，所述保护层设有位于所述非显示区内的至少一沟槽，所述遮光层在所述非显示区的所述沟槽处断开。
  14. 根据权利要求13所述的显示装置，其中，至少一所述沟槽内设有第一填充部，所述第一填充部与所述保护层的材料不同。
  15. 根据权利要求14所述的显示装置，其中，所述第一填充部与所述主体部的材料相同，且所述第一填充部与所述主体部间隔设置。
  16. 根据权利要求14所述的显示装置，其中，至少一所述沟槽内还设有第二填充部，所述第二填充部覆盖所述第一填充部，所述第二填充部的材料与所述第一填充部和所述保护层的材料均不同。
  17. 根据权利要求16所述的显示装置，其中，所述显示面板还包括位于所述封装层和所述保护层之间的触控层，所述第二填充部为所述色阻，所述第二填充部的远离所述第一填充部的顶面超出所述延伸部的远离所述保护层的顶面，所述第一填充部的远离所述触控层的顶面位于所述保护层的靠近所述触控层的底面和所述保护层的远离所述触控层的顶面之间，且相邻的至少两所述沟槽内的所述色阻的颜色不同。
  18. 根据权利要求14所述的显示装置，其中，至少一所述沟槽内还设有第三填充部，所述第三填充部覆盖所述第一填充部和所述延伸部，所述第三填充部的远离所述延伸部的顶面为平坦表面，所述第三填充部的材料与所述第一填充部和所述保护层的材料均不同。
  19. 根据权利要求13所述的显示装置，其中，所述显示面板还包括位于所述封装层和所述保护层之间的触控层，至少一所述沟槽内设有第二填充部，所述第二填充部包括第一部、位于所述第一部上的第二部、位于所述第二部上的第三部，所述第一部、所述第二部和所述第三部的材料不同，所述第一部和所述第二部的界面位于所述保护层靠近所述触控层的底面和所述保护层的远离所述触控层的顶面之间，所述第二部和所述第三部的界面位于所述延伸部靠近所述保护层的底面和所述延伸部的远离所述保护层的顶面之间。
  20. 根据权利要求13所述的显示装置，其中，至少一所述沟槽内设有第二填充部，所述显示区包括相对的两第一侧和相对的两第二侧，所述第一侧与所述第二侧相交，多个所述沟槽围绕所述显示区且至少两相邻的所述沟槽内的所述第二填充部的材料不同，每一所述沟槽包括靠近所述第一侧的第一段和靠近所述第二侧的第二段，所述第一段和所述第二段在所述第一侧和所述第二侧的交界处间隔设置，靠近其中一所述第一侧的多个所述第一段的排布顺序与靠近另一所述第一侧的多个所述第一段的排布顺序相反，靠近其中一所述第二侧的多个所述第二段的排布顺序与靠近另一所述第一侧的多个所述第一段的排布顺序相反。
PCT/CN2023/083903 2022-07-21 2023-03-24 显示面板及显示装置 WO2024016710A1 (zh)

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