WO2023226079A1 - 显示装置 - Google Patents

显示装置 Download PDF

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Publication number
WO2023226079A1
WO2023226079A1 PCT/CN2022/097139 CN2022097139W WO2023226079A1 WO 2023226079 A1 WO2023226079 A1 WO 2023226079A1 CN 2022097139 W CN2022097139 W CN 2022097139W WO 2023226079 A1 WO2023226079 A1 WO 2023226079A1
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WO
WIPO (PCT)
Prior art keywords
substrate
light
linear groove
display device
emitting
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Application number
PCT/CN2022/097139
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English (en)
French (fr)
Inventor
罗维
江应传
鲜于文旭
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
Publication of WO2023226079A1 publication Critical patent/WO2023226079A1/zh

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
    • H01L33/62—Arrangements for conducting electric current to or from the semiconductor body, e.g. lead-frames, wire-bonds or solder balls
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L25/00—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof
    • H01L25/16—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof the devices being of types provided for in two or more different main groups of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. forming hybrid circuits
    • H01L25/167—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof the devices being of types provided for in two or more different main groups of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. forming hybrid circuits comprising optoelectronic devices, e.g. LED, photodiodes
    • 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
    • H10K50/805—Electrodes

Definitions

  • the present application relates to the field of display technology, and in particular, to a display device.
  • the circuitry of the display panel needs to be arranged on a driving substrate, and then the light-emitting substrate provided with the light-emitting device is combined with the driving substrate to obtain a frameless display device.
  • the combination deviation between the light-emitting substrate and the driving substrate is large, the light-emitting device of the light-emitting substrate and the driving circuit on the driving substrate cannot be effectively electrically connected, and the display device may display abnormality.
  • the purpose of this application is to provide a display device to solve the problem of display abnormalities caused by large deviations in the combination of the light-emitting substrate and the driving substrate.
  • a display device includes:
  • a light-emitting substrate includes a substrate, a plurality of first conductive parts and a plurality of light-emitting devices.
  • the substrate has an opposite first surface and a second surface, and a plurality of the light-emitting devices are disposed on the substrate.
  • On the first surface a plurality of the first conductive parts are arranged at intervals on the second surface of the substrate, and the first conductive parts are electrically connected to the light-emitting device;
  • the driving substrate is located on the back side of the light-emitting surface of the light-emitting substrate.
  • a driving circuit and a plurality of spaced-apart second conductive parts connected to the driving circuit are provided on the surface of the driving substrate close to the light-emitting substrate.
  • the second conductive part is connected to the first conductive part;
  • one of the first conductive part and the second conductive part includes a linear groove
  • the other of the first conductive part and the second conductive part includes a point-like protrusion
  • the Point-like protrusions are located in the linear grooves.
  • the linear groove extends in a single direction.
  • a plurality of the light-emitting substrates are spliced and connected, and the extending directions of the plurality of linear grooves are the same.
  • the linear groove includes a first linear groove and a second linear groove intersecting the first linear groove, and the first linear groove is along the first linear groove.
  • the second linear groove extends along a second direction, and the first direction intersects the second direction.
  • a plurality of the light-emitting substrates are spliced and connected along a third direction, and one of the first direction and the second direction is parallel to the third direction; or,
  • a plurality of the light-emitting substrates are spliced and connected along a third direction and a fourth direction, the third direction intersects the fourth direction, the third direction is parallel to the first direction, and the fourth direction is parallel to the fourth direction.
  • the second direction is parallel; or,
  • a plurality of the light-emitting substrates are spliced and connected along the third direction and the fourth direction, the third direction intersects the fourth direction, and the first direction intersects both the third direction and the fourth direction, The second direction intersects both the third direction and the fourth direction.
  • the first linear groove and the second linear groove intersect in an X-shape, a cross-shape or a T-shape.
  • one of the first conductive part and the second conductive part includes a frame and a conductive layer, at least part of the conductive layer is formed at a bottom of the opening of the frame , the opening and the conductive layer in the opening constitute the linear groove.
  • the frame is made of an organic material
  • the conductive layer is made of a metal or a transparent conductive material
  • the dot-shaped protrusions are made of an organic conductive material.
  • the height of the dot-shaped protrusions is greater than or equal to 10 microns and less than or equal to 100 microns, and the depth of the linear grooves is greater than or equal to 10 microns and less than or equal to 100 microns.
  • the size of the linear groove in the extension direction is greater than or equal to 50 microns and less than or equal to 200 microns.
  • the substrate is a flexible substrate.
  • the present application provides a display device.
  • the light-emitting substrate includes a plurality of spaced-apart first conductive parts located on the back side of the light-emitting substrate.
  • the driving substrate is provided with a plurality of spaced-apart second conductive parts on a surface close to the light-emitting substrate.
  • the second conductive parts The first conductive part and the second conductive part are connected to the first conductive part, one of the first conductive part and the second conductive part includes a linear groove, the other of the first conductive part and the second conductive part includes dot-shaped protrusions, the light-emitting substrate and the driving When the substrate is connected, the position of the dot-shaped protrusion in the linear groove can be adjusted to ensure that the first conductive part and the second conductive part can be aligned and connected, thereby ensuring that the display device can display normally.
  • Figure 1 is a schematic plan view of a display device according to an embodiment of the present application.
  • Figure 2 is a schematic cross-sectional view along line A-A of the display device shown in Figure 1;
  • FIG. 3 is a partially enlarged schematic view of the second conductive part of the driving substrate shown in FIG. 2 and the frame of the second conductive part;
  • Figure 4 is a first schematic plan view of the driving substrate of the display device shown in Figure 1;
  • Figure 5 is a second schematic plan view of the driving substrate of the display device shown in Figure 1;
  • Figure 6 is a schematic plan view of the second conductive portion of the driving substrate shown in Figures 4 and 5;
  • Figure 7 is a schematic plan view of a display device according to another embodiment of the present application.
  • Figure 8 is a first plan view of the driving substrate of the display device shown in Figure 7;
  • Figure 9 is a schematic plan view of the second conductive portion of the driving substrate shown in Figure 8.
  • Figure 10 is a second schematic plan view of the driving substrate of the display device shown in Figure 7;
  • FIG. 11 is a schematic plan view of the second conductive portion of the driving substrate shown in FIG. 10 .
  • the present application provides a display device 100 .
  • the display device 100 is a transparent display device.
  • the display device 100 includes a light emitting substrate 10 and a driving substrate 20.
  • the light emitting substrate 10 has a light emitting surface 10a and a back surface 10b opposite to the light emitting surface 10a.
  • the driving substrate 20 is located on the back side of the light emitting surface 10a of the light emitting substrate 10.
  • the number of the driving substrate 20 is one, and the number of the light-emitting substrates 10 is two.
  • the two light-emitting substrates 10 are spliced and connected along the third direction, and the two spliced and connected light-emitting substrates 10 are connected to one driving substrate 20 . It can be understood that the number of the light-emitting substrates 10 may also be one or more than two.
  • a transparent optical adhesive layer is provided between the spliced and connected light-emitting substrate 10 and the driving substrate 20 to prevent dust or water vapor from entering the gap between the light-emitting substrate 10 and the driving substrate 20 .
  • the light-emitting substrate 10 is a flexible organic light-emitting diode substrate. It can be understood that the light-emitting substrate 10 may also include micro light-emitting diodes, sub-millimeter light-emitting diodes, quantum dot light-emitting diodes, etc.
  • the light-emitting substrate 10 includes a substrate 101 , a first driving circuit layer 102 , a light-emitting device layer 103 , an encapsulation layer 104 and a plurality of first conductive portions 105 arranged at intervals.
  • the substrate 101 has an opposite first surface 101a and a second surface 101b.
  • the second surface 101b is the back surface 10b of the light-emitting substrate 10.
  • the first surface 101a and the second surface 101b are both flat surfaces.
  • the substrate 101 includes a connection hole 101 c penetrating the substrate 101 in the thickness direction of the substrate 101 .
  • the substrate 101 is a flexible substrate.
  • the substrate 101 is made of transparent polyimide or transparent polyethylene terephthalate.
  • the first driving circuit layer 102 is disposed on the first surface 101a of the substrate 101.
  • the first driving circuit layer 102 includes a plurality of pixel driving circuits, and the pixel driving circuits include transistors and capacitors.
  • the light emitting device layer 103 is disposed on the surface of the first driving circuit layer 102 away from the substrate 101 .
  • the light-emitting device layer 103 includes a plurality of light-emitting devices 1031, and the plurality of light-emitting devices 1031 are electrically connected to the pixel driving circuit.
  • the light-emitting device 1031 is an organic light-emitting diode.
  • the encapsulation layer 104 is disposed on the surface of the light emitting device layer 103 away from the first driving circuit layer 102 .
  • the encapsulation layer 104 includes two inorganic insulation layers and an organic insulation layer located between the two inorganic insulation layers.
  • a plurality of spaced apart first conductive portions 105 are disposed on the second surface 101b of the substrate 101, and the first conductive portions 105 are electrically connected to the pixel driving circuit through the connection holes 101c, and the first conductive portions 105 are electrically connected to the light-emitting device 1031. connect.
  • the light-emitting substrate 10 includes a substrate 101
  • the light-emitting substrate 10 is prepared on a glass substrate and then peeled off from the glass substrate.
  • the substrate 101 is flexible, after the light-emitting substrate 10 is peeled off from the glass substrate, the size of the light-emitting substrate 10 may be partially stretched and/or shrunk due to the release of stress, causing the plurality of first conductive parts 105 to deviate from the original size. s position.
  • the driving circuit of the frame area of the traditional display panel is provided on the driving substrate 20, and the light-emitting substrate 10 is connected to the driving substrate 20, so that The driving substrate 20 drives the light-emitting substrate 10 to emit light.
  • the driving substrate 20 includes a carrier board 201, a second driving circuit layer 202 and a plurality of second conductive portions 203 arranged at intervals.
  • the carrier 201 is a glass substrate, and the surface of the carrier 201 close to the light-emitting substrate 10 is a flat surface.
  • a second driving circuit layer 202 is provided on the surface of the carrier board 201 close to the light-emitting substrate 10.
  • the second driving circuit layer 202 includes a gate driving circuit, a power line and other driving circuits.
  • the second conductive part 203 is disposed on the surface of the second driving circuit layer 202 away from the carrier 201.
  • the second conductive part 203 is electrically connected to the second driving circuit layer 202, and the second conductive part 203 is connected to the first conductive part 105.
  • the signal output by the second driving circuit layer 202 is transmitted to the pixel driving circuit of the first driving circuit layer 102 through the second conductive part 203 and the first conductive part 105 .
  • the first conductive part 105 includes dot-shaped protrusions 105a.
  • the second conductive part 203 includes linear grooves 2031a.
  • the linear grooves 2031a are linear.
  • the dot-shaped protrusions 105a are dot-shaped relative to the entire linear groove 2031a.
  • the dot-shaped protrusions are When the protrusions 105a are located in the linear groove 2031a, the point-shaped protrusions 105a can stay at multiple different positions (two or more different positions) in the linear groove 2031a, so that multiple first conductive portions 105 When the flexible substrate 101 is deflected due to stretching and/or contraction, and the first conductive part 105 and the second conductive part 203 need to be connected, the point-like protrusion 105a can move to a specific position in the linear groove 2031a, This ensures good conduction between the first conductive part 105 and the second conductive part 203 and improves the problem of poor conduction caused by the connection structure on the light-emitting substrate side being offset and unable to be aligned with the connection structure on the driving substrate side in the traditional technology.
  • first conductive part 105 may also include linear grooves 2031a, and the second conductive part 203 may include point-shaped protrusions 105a.
  • the area of the cross section of the dot-shaped protrusion 105a parallel to the second surface 101b of the substrate 101 decreases from the direction close to the substrate 101 to the direction away from the substrate 101. That is, the size of the end of the dot-shaped protrusion 105a away from the substrate 101 is smaller than the dot-shaped protrusion 105a.
  • the size close to one end of the substrate 101 enables the first conductive portion 105 to be stably disposed on the second surface 101b of the substrate 101, and facilitates the point-shaped protrusion 105a to move more easily into the linear groove 2031a.
  • the point-like protrusions 105a are in the shape of a pyramid, such as a quadrangular pyramid or a circular pyramid. It can be understood that the point-like protrusions 105a can also be in the shape of a rectangular parallelepiped.
  • the height of the dot-like protrusions 105a is greater than or equal to 10 microns and less than or equal to 100 microns, such as 20 microns, 40 microns, 50 microns, 60 microns, 70 microns or 80 microns.
  • the dot-shaped protrusions 105a are made of organic conductive materials, and the organic conductive materials include conductive silver glue.
  • the preparation material of the dot-shaped protrusions 105a includes organic conductive materials, the dot-shaped protrusions 105a are prepared through a printing process.
  • the second conductive part 203 includes a frame 2031 and a conductive layer 2032 .
  • the frame 2031 includes an opening 2031 b penetrating the frame 2031 in the thickness direction of the second conductive part 203 , and the opening 2031 b is located in the middle of the frame 2031 .
  • the frame 2031 is made of organic materials, which may be organic conductive materials or organic insulating materials.
  • the conductive layer 2032 is made of metal or transparent conductive material.
  • At least part of the conductive layer 2032 is formed at the bottom of the opening 2031b of the frame 2031.
  • the conductive layer 2032 does not fill the opening 2031b of the frame 2031.
  • the opening 2031b and the conductive layer 2032 in the opening 2031b form a linear groove 2031a.
  • the conductive layer 2032 is formed on the opening sidewall of the opening 2031b of the frame 2031 and the second driving circuit layer 202 in the opening 2031b, and the conductive layer 2032 is formed on the opening sidewall of the opening 2031b (ie, the inner wall of the frame 2031). Extending to the outer wall 2031c of the frame 2031, the outer wall 2031c of the frame 2031 is located outside the frame 2031.
  • the conductive layer 2032 can also be formed only on the second driving circuit layer 202 in the opening 2031b. In this case, the conductive layer 2032 is only formed at the bottom of the opening 2031b.
  • the dot-shaped protrusion 105a When the dot-shaped protrusion 105a is located in the linear groove 2031a, the dot-shaped protrusion 105a contacts the conductive layer 2032 of the second conductive part 203, thereby electrically connecting the first conductive part 105 and the second conductive part 203.
  • the bottom of the linear groove 2031a has a plurality of contact points arranged sequentially and spaced apart along the extension direction (first direction) of the linear groove 2031a.
  • the area of the contact points is greater than or equal to that of the point-like protrusion 105a.
  • the plurality of contact points include the first contact point A1, the second contact point A2, the third contact point A3, and the fourth contact point A4.
  • the point-like protrusion 105a When the point-like protrusion 105a is located in the linear groove 2031a, the point-like protrusion 105a can Contact any one of the first contact point A1, the second contact point A2, the third contact point A3 and the fourth contact point A4, so that the point-shaped protrusion 105a can stay in multiple different positions in the linear groove 2031a .
  • point-shaped protrusion 105a can also stay at other positions at the bottom of the linear groove 2031a except for the first contact point A1, the second contact point A2, the third contact point A3 and the fourth contact point A4.
  • the linear groove 2031a has two opposite first groove side walls 2031d and two opposite second groove side walls 2031e.
  • the two first groove side walls 2031d extend along the extension direction of the linear groove 2031a.
  • Each second groove side wall 2031e is connected between the two first groove side walls 2031d.
  • conductive glue can also be disposed between the dot-shaped protrusions 105a and the second conductive part 203, so that the dot-shaped protrusions 105a and the second conductive part 203 are electrically connected.
  • the linear groove 2031a extends linearly along the first direction, and the first direction is parallel to the third direction, or the first direction intersects the third direction.
  • the angle between the first direction and the third direction is greater than 0 degrees and less than or equal to 180 degrees, for example, 30 degrees, 40 degrees, 50 degrees, 60 degrees, 70 degrees, 90 degrees degrees or 120 degrees.
  • the extension direction of the linear groove 2031a is consistent with the offset direction of the plurality of first conductive portions 105.
  • the first conductive parts 105 can be aligned with the corresponding second conductive parts 203 And conduction ensures that the display device can display normally.
  • the plurality of linear grooves 2031a of the plurality of driving substrates 20 extend in the same direction, so that two adjacent spliced and connected light-emitting substrates 10 can be aligned.
  • the area of the cross-section of the linear groove 2031a parallel to the surface of the carrier board 201 close to the light-emitting substrate 10 increases from the direction close to the carrier board 201 to the direction away from the carrier board 201, so that the second conductive portion 203 is stably disposed on the carrier board 201. At the same time, it is further made easier for the point-shaped protrusions 105a to move into the linear grooves 2031a.
  • the depth of the linear groove 2031a is greater than or equal to 10 microns and less than or equal to 100 microns, such as 20 microns, 40 microns, 50 microns, 60 microns, 70 microns or 80 microns.
  • the size of the linear groove 2031a along the extension direction (first direction) is greater than or equal to 50 microns and less than or equal to 200 microns, such as 60 microns, 80 microns, 100 microns, 120 microns, 140 microns, 160 microns, 180 microns or 200 microns to accommodate the deviation of the first conductive part 105 caused by shrinkage or stretching of the substrate 101 and to prevent the second conductive part 203 from occupying too much space.
  • a plurality of light-emitting substrates 10 are spliced and connected along the third direction and the fourth direction, and the third direction intersects with the fourth direction. Specifically, the third direction is perpendicular to the fourth direction.
  • the linear groove of the second conductive portion 203 includes a first linear groove 2031a1 and a second linear groove 2031a2 that intersects the first linear groove 2031a1.
  • the first linear groove 2031a1 Extending along the first direction, the second linear groove 2031a2 extends along the second direction, and the first direction intersects the second direction, so that when the first conductive part 105 and the second conductive part 203 are connected, the point of the first conductive part 105
  • the protrusions 105a can move in grooves extending in different directions, which is more conducive to the alignment and conduction of the first conductive part 105 and the second conductive part 203, ensuring that the display device 100 can display normally.
  • the first linear groove 2031a1 and the second linear groove 2031a2 are the same, for example, both are linear, and both have the same shape and size.
  • the first linear groove 2031a1 and the second linear groove 2031a2 are the same as the linear grooves in FIG. 6 and will not be described again here.
  • first linear groove 2031a1 and the second linear groove 2031a2 intersect in a cross shape, and the first direction is perpendicular to the second direction. It can be understood that the first linear groove 2031a1 and the second linear groove 2031a2 may also intersect in a T shape. As shown in Figure 8, the third direction is parallel to the first direction, and the fourth direction is parallel to the second direction.
  • the first linear groove 2031a1 and the second linear groove 2031a2 intersect in an X shape, and the angle between the first direction and the second direction is greater than 0 degrees and less than 90 degrees, for example, 30 degrees, 45 degrees, 60 degrees or 80 degrees.
  • the first direction intersects both the third direction and the fourth direction
  • the second direction intersects both the third direction and the fourth direction.
  • the angle between the first direction and the third direction is greater than 0 degrees and less than 90 degrees
  • the angle between the first direction and the fourth direction is greater than 0 degrees and less than 90 degrees
  • the angle between the second direction and the third direction is greater than 90 degrees and less than 180 degrees
  • the angle between the second direction and the fourth direction is greater than 0 degrees and less than 90 degrees.

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Abstract

一种显示装置(100)，包括：发光基板(10)，包括基板(101)、第一导电部(105)和发光器件(103)，第一导电部(105)设置于基板(101)的第二表面(101b)上；驱动基板(20)，驱动基板(20)靠近发光基板(10)的表面上设置有与第一导电部(105)连接的第二导电部(203)，第一导电部(105)和第二导电部(203)中的一者包括线形凹槽(2031a)，第一导电部(105)和第二导电部(203)中的另一者包括点状凸起(105a)，点状凸起(105a)位于线形凹槽(2031a)中。

Description

显示装置 技术领域
本申请涉及显示技术领域，尤其涉及一种显示装置。
 背景技术
目前，为了实现无边框显示，需要将显示面板的至少部分电路设置在驱动基板上，再将设置有发光器件的发光基板与驱动基板结合，得到无边框显示装置。然而，发光基板与驱动基板结合偏差较大时，会导致发光基板的发光器件与驱动基板上的驱动电路无法有效电连接，显示装置会出现显示异常的问题。
因此，有必要提出一种技术方案以解决发光基板与驱动基板结合偏差较大会导致显示异常的问题。
 技术问题
本申请的目的在于提供一种显示装置，以解决发光基板与驱动基板结合偏差较大会导致显示异常的问题。
 技术解决方案
一种显示装置，所述显示装置包括：
发光基板，所述发光基板包括基板、多个第一导电部和多个发光器件，所述基板具有相对的第一表面和第二表面，多个所述发光器件设置于所述基板的所述第一表面上，多个所述第一导电部间隔地设置于所述基板的所述第二表面上，所述第一导电部与所述发光器件电性连接；
驱动基板，位于所述发光基板的出光面的背侧，所述驱动基板靠近所述发光基板的表面上设置有驱动电路和与所述驱动电路连接的多个间隔设置的第二导电部，所述第二导电部与所述第一导电部连接；
其中，所述第一导电部和所述第二导电部中的一者包括线形凹槽，所述第一导电部和所述第二导电部中的另一者包括点状凸起，所述点状凸起位于所述线形凹槽中。
在一些实施例的显示装置中，所述线形凹槽沿单个方向延伸。
在一些实施例的显示装置中，多个所述发光基板拼接连接，多个所述线形凹槽的延伸方向相同。
在一些实施例的显示装置中，所述线形凹槽包括第一线形凹槽和与所述第一线形凹槽相交的第二线形凹槽，所述第一线形凹槽沿第一方向延伸，第二线形凹槽沿第二方向延伸，所述第一方向与所述第二方向相交。
在一些实施例的显示装置中，多个所述发光基板沿第三方向拼接连接，所述第一方向和所述第二方向中的一者与所述第三方向平行；或，
多个所述发光基板沿第三方向与第四方向拼接连接，所述第三方向与所述第四方向相交，所述第三方向与所述第一方向平行，所述第四方向与所述第二方向平行；或，
多个所述发光基板沿第三方向与第四方向拼接连接，所述第三方向与所述第四方向相交，所述第一方向与所述第三方向和所述第四方向均相交，所述第二方向与所述第三方向和所述第四方向均相交。
在一些实施例的显示装置中，所述第一线形凹槽与所述第二线形凹槽呈X形、十字形或T形相交。
在一些实施例的显示装置中，所述第一导电部和所述第二导电部中的一者包括框体和导电层，所述导电层的至少部分形成于所述框体的开口的底部，所述开口和所述开口内的所述导电层组成所述线形凹槽。
在一些实施例的显示装置中，所述框体的制备材料包括有机材料，所述导电层的制备材料包括金属或透明导电材料，所述点状凸起的制备材料包括有机导电材料。
在一些实施例的显示装置中，所述点状凸起的高度大于或等于10微米且小于或等于100微米，所述线形凹槽的深度大于或等于10微米且小于或等于100微米。
在一些实施例的显示装置中，所述线形凹槽在延伸方向上的尺寸大于或等于50微米且小于或等于200微米。
在一些实施例的显示装置中，所述基板为柔性基板。
在一些实施例的显示装置中，所述点状凸起与所述线形凹槽沿延伸方向延伸的凹槽侧壁之间具有间隙。
 有益效果
本申请提供一种显示装置，发光基板包括位于发光基板的背面的多个间隔设置的第一导电部，驱动基板靠近发光基板的表面上设置有多个间隔设置的第二导电部，第二导电部与第一导电部连接，第一导电部和第二导电部中的一者包括线形凹槽，第一导电部和第二导电部中的另一者包括点状凸起，发光基板与驱动基板连接时，点状凸起在线形凹槽中的位置可以调节，以保证第一导电部与第二导电部能对准且导通，进而保证显示装置能正常显示。
 附图说明
图1为本申请一实施例显示装置的平面示意图；
图2为沿图1所示显示装置的A-A切线的截面示意图；
图3为图2所示驱动基板的第二导电部及第二导电部的框体的局部放大示意图；
图4为图1所示显示装置的驱动基板的第一种平面示意图；
图5为图1所示显示装置的驱动基板的第二种平面示意图；
图6为图4和图5所示驱动基板的第二导电部的平面示意图；
图7为本申请另一实施例显示装置的平面示意图；
图8为图7所示显示装置的驱动基板的第一种平面示意图；
图9为图8所示驱动基板的第二导电部的平面示意图；
图10为图7所示显示装置的驱动基板的第二种平面示意图；
图11为图10所示驱动基板的第二导电部的平面示意图。
 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。
请参阅图1和图2，本申请提供一种显示装置100，显示装置100为透明显示装置。显示装置100包括发光基板10和驱动基板20，发光基板10具有出光面10a和与出光面10a相对的背面10b，驱动基板20位于发光基板10的出光面10a的背侧。
驱动基板20的数目为一个，发光基板10的数目为两个，两个发光基板10沿第三方向拼接连接，两个拼接连接的发光基板10与一个驱动基板20连接。可以理解的是，发光基板10的数目也可以为一个或两个以上。
拼接连接的发光基板10与驱动基板20之间设置有透明光学胶层，以避免灰尘或水汽等进入至发光基板10与驱动基板20之间的间隙。
发光基板10为柔性有机发光二极管基板。可以理解的是，发光基板10也可以包括微型发光二极管、次毫米发光二极管或者量子点发光二极管等。
请参阅图2，发光基板10包括基板101、第一驱动电路层102、发光器件层103、封装层104以及多个间隔设置的第一导电部105。
基板101具有相对的第一表面101a和第二表面101b，第二表面101b为发光基板10的背面10b，第一表面101a和第二表面101b均为平坦的表面。基板101包括连接孔101c，连接孔101c在基板101的厚度方向上贯穿基板101。基板101为柔性基板。基板101的制备材料为透明聚酰亚胺或透明聚对苯二甲酸乙二醇酯。
第一驱动电路层102设置于基板101的第一表面101a上。第一驱动电路层102包括多个像素驱动电路，像素驱动电路包括晶体管和电容器。
发光器件层103设置于第一驱动电路层102远离基板101的表面上。发光器件层103包括多个发光器件1031，多个发光器件1031与像素驱动电路电性连接。发光器件1031为有机发光二极管。
封装层104设置于发光器件层103远离第一驱动电路层102的表面上。封装层104包括两个无机绝缘层和位于两个无机绝缘层之间的有机绝缘层。
多个间隔设置的第一导电部105设置于基板101的第二表面101b上，且第一导电部105与像素驱动电路通过连接孔101c电性连接，第一导电部105与发光器件1031电性连接。
需要说明的是，由于发光基板10包括基板101，发光基板10是在玻璃基板上制备出来后，从玻璃基板上剥离得到。然而，基板101由于具有柔性，发光基板10从玻璃基板上剥离下来后，发光基板10的尺寸会由于应力的释放而发生局部的拉伸和/或收缩，导致多个第一导电部105偏离原始的位置。
另外，为了使一个发光基板10或多个拼接的发光基板10实现无边框显示，将传统显示面板的边框区的驱动电路设置于驱动基板20上，将发光基板10与驱动基板20连接，以使得驱动基板20驱动发光基板10发光。
驱动基板20包括载板201、第二驱动电路层202以及多个间隔设置的第二导电部203。
载板201为玻璃基板，载板201靠近发光基板10的表面为平坦的表面。载板201靠近发光基板10的表面上设置有第二驱动电路层202，第二驱动电路层202包括栅极驱动电路以及电源线等驱动电路。第二导电部203设置于第二驱动电路层202远离载板201的表面上，第二导电部203与第二驱动电路层202电性连接，第二导电部203与第一导电部105连接，以通过第二导电部203和第一导电部105将第二驱动电路层202输出的信号传输至第一驱动电路层102的像素驱动电路。
第一导电部105包括点状凸起105a，第二导电部203包括线形凹槽2031a，线形凹槽2031a呈线形，点状凸起105a相对于整个的线形凹槽2031a呈点状，点状凸起105a位于线形凹槽2031a中时，点状凸起105a能在线形的线形凹槽2031a中多个不同的位置（两个或两个不同以上的位置）停留，以使得多个第一导电部105由于柔性的基板101的拉伸和/或收缩发生偏移，且第一导电部105与第二导电部203需要连接时，点状凸起105a可以移动至线形凹槽2031a中特定的位置，以保证第一导电部105与第二导电部203实现良好的导通，改善传统技术中发光基板侧的连接结构偏移而无法与驱动基板侧的连接结构对齐导致的导通不良问题。
可以理解的是，也可以第一导电部105包括线形凹槽2031a，第二导电部203包括点状凸起105a。
点状凸起105a平行于基板101的第二表面101b的截面的面积，从靠近基板101至远离基板101的方向递减，即点状凸起105a远离基板101的一端的尺寸小于点状凸起105a靠近基板101的一端的尺寸，以使得第一导电部105能稳定地设置于基板101的第二表面101b上，且有利于点状凸起105a更容易在线形凹槽2031a移动。
具体地，点状凸起105a呈棱台型，例如四棱台或圆棱台。可以理解的是，点状凸起105a也可以呈长方体。
点状凸起105a的高度大于或等于10微米且小于或等于100微米，例如为20微米、40微米、50微米、60微米、70微米或者80微米。
点状凸起105a的制备材料包括有机导电材料，有机导电材料包括导电银胶。点状凸起105a的制备材料包括有机导电材料时，点状凸起105a通过打印工艺制备得到。
请参阅图2、图3以及图6，第二导电部203包括框体2031和导电层2032。框体2031包括在第二导电部203的厚度方向上贯穿框体2031的开口2031b，开口2031b位于框体2031的中间位置。框体2031的制备材料包括有机材料，有机材料可以为有机导电材料，也可以为有机绝缘材料。导电层2032的制备材料包括金属或透明导电材料。
导电层2032的至少部分形成于框体2031的开口2031b的底部，导电层2032未填满框体2031的开口2031b，开口2031b和开口2031b内的导电层2032组成线形凹槽2031a。
具体地，导电层2032形成于框体2031的开口2031b的开口侧壁以及开口2031b内的第二驱动电路层202上，且导电层2032从开口2031b的开口侧壁（即框体2031的内壁）延伸至框体2031的外壁2031c上，框体2031的外壁2031c位于框体2031的外部。
可以理解的是，导电层2032也可以只是形成于开口2031b内的第二驱动电路层202上，此时，导电层2032只是形成于开口2031b的底部。
点状凸起105a位于线形凹槽2031a中时，点状凸起105a与第二导电部203的导电层2032接触，进而使得第一导电部105与第二导电部203之间电性连接。
请参阅图6，线形凹槽2031a的底部有沿线形凹槽2031a的延伸方向（第一方向）依次排布且间隔设置的多个接触点，接触点的面积大于或等于点状凸起105a远离基板101的一端的面积。例如，多个接触点包括第一接触点A1、第二接触点A2、第三接触点A3以及第四接触点A4，点状凸起105a位于线形凹槽2031a中时，点状凸起105a可以与第一接触点A1、第二接触点A2、第三接触点A3以及第四接触点A4中的任意一个接触，以使得点状凸起105a能在线形凹槽2031a中多个不同的位置停留。
可以理解的是，点状凸起105a也可以停留于线形凹槽2031a中底部除第一接触点A1、第二接触点A2、第三接触点A3以及第四接触点A4之外的其他位置。
线形凹槽2031a具有两个相对设置的第一凹槽侧壁2031d和两个相对设置的第二凹槽侧壁2031e，两个第一凹槽侧壁2031d沿线形凹槽2031a的延伸方向延伸，每个第二凹槽侧壁2031e连接于两个第一凹槽侧壁2031d之间，点状凸起105a位于线形凹槽2031a中时，点状凸起105a与线形凹槽2031a的第一凹槽侧壁2031d之间具有间隙，使得点状凸起105a更容易在线形凹槽2031a中移动。
可以理解的是，点状凸起105a与第二导电部203之间也可以设置导电胶，以使得点状凸起105a与第二导电部203之间电性导通。
请参阅图4、图5及图6，线形凹槽2031a沿第一方向呈直线形延伸，第一方向与第三方向平行，或，第一方向与第三方向相交。第一方向与第三方向相交时，第一方向与第三方向之间的夹角大于0度且小于或等于180度，例如为30度、40度、50度、60度、70度、90度或120度。
基板101沿单个方向收缩或拉伸导致的变形比较显著，导致多个第一导电部沿单个方向偏移显著时，线形凹槽2031a的延伸方向与多个第一导电部105沿的偏移方向相同，通过偏移后的多个第一导电部105的点状凸起105a在第二导电部203的线形凹槽2031a中移动，使得第一导电部105能与对应的第二导电部203对准且导通，保证显示装置能正常显示。
多个驱动基板20的多个线形凹槽2031a的延伸方向相同，以使得相邻两个拼接连接的发光基板10能对齐。
线形凹槽2031a平行于载板201靠近发光基板10的表面的横截面的面积从靠近载板201至远离载板201的方向递增，以使得第二导电部203稳定地设置于载板201上的同时，进一步地使点状凸起105a更容易在线形凹槽2031a移动。
线形凹槽2031a的深度大于或等于10微米且小于或等于100微米，例如为20微米、40微米、50微米、60微米、70微米或者80微米。
线形凹槽2031a沿延伸方向（第一方向）上的尺寸大于或等于50微米且小于或等于200微米，例如为60微米、80微米、100微米、120微米、140微米、160微米、180微米或200微米，以适应基板101的收缩或拉伸导致第一导电部105偏移的偏差量的同时，避免第二导电部203占用过多的空间。
请参阅图7，多个发光基板10沿第三方向和第四方向拼接连接，第三方向与第四方向相交。具体地，第三方向与第四方向垂直。
请参阅图9和图11，第二导电部203的线形凹槽包括第一线形凹槽2031a1和与第一线形凹槽2031a1相交的第二线形凹槽2031a2，第一线形凹槽2031a1沿第一方向延伸，第二线形凹槽2031a2沿第二方向延伸，第一方向与第二方向相交，以使得第一导电部105与第二导电部203连接时，第一导电部105的点状凸起105a能在沿不同方向延伸的凹槽中移动，更有利于第一导电部105与第二导电部203对准且导通，保证显示装置100能正常显示。
第一线形凹槽2031a1与第二线形凹槽2031a2相同，例如两者均呈直线形，且两者的形状和尺寸均相同。第一线形凹槽2031a1和第二线形凹槽2031a2与图6中的线形凹槽相同，此处不作赘述。
如图9所示，第一线形凹槽2031a1与第二线形凹槽2031a2呈十字形相交，第一方向与第二方向垂直。可以理解的是，第一线形凹槽2031a1与第二线形凹槽2031a2也可以呈T形相交。如图8所示，第三方向与第一方向平行，第四方向与第二方向平行。
如图11所示，第一线形凹槽2031a1与第二线形凹槽2031a2呈X形相交，第一方向与第二方向之间的夹角大于0度且小于90度，例如为30度、45度、60度或80度。如图10所示，第一方向与第三方向和第四方向均相交，第二方向与第三方向和第四方向均相交。其中，第一方向与第三方向之间的夹角大于0度且小于90度，第一方向与第四方向之间的夹角大于0度且小于90度。第二方向与第三方向之间的夹角大于90度且小于180度，第二方向与第四方向的夹角大于0度且小于90度。
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. 一种显示装置，其中，所述显示装置包括：
    发光基板，所述发光基板包括基板、多个第一导电部和多个发光器件，所述基板具有相对的第一表面和第二表面，多个所述发光器件设置于所述基板的所述第一表面上，多个所述第一导电部间隔地设置于所述基板的所述第二表面上，所述第一导电部与所述发光器件电性连接，所述基板为柔性基板；
    驱动基板，位于所述发光基板的出光面的背侧，所述驱动基板靠近所述发光基板的表面上设置有驱动电路和与所述驱动电路连接的多个间隔设置的第二导电部，所述第二导电部与所述第一导电部连接；
    其中，所述第一导电部和所述第二导电部中的一者包括线形凹槽，所述第一导电部和所述第二导电部中的另一者包括点状凸起，所述点状凸起位于所述线形凹槽中，所述点状凸起与所述线形凹槽沿延伸方向延伸的凹槽侧壁之间具有间隙。
  2. 根据权利要求1所述的显示装置，其中，所述线形凹槽沿单个方向延伸。
  3. 根据权利要求2所述的显示装置，其中，多个所述发光基板拼接连接，多个所述线形凹槽的延伸方向相同。
  4. 根据权利要求1所述的显示装置，其中，所述线形凹槽包括第一线形凹槽和与所述第一线形凹槽相交的第二线形凹槽，所述第一线形凹槽沿第一方向延伸，第二线形凹槽沿第二方向延伸，所述第一方向与所述第二方向相交。
  5. 根据权利要求4所述的显示装置，其中，所述第一线形凹槽与所述第二线形凹槽呈X形、十字形或T形相交。
  6. 根据权利要求1所述的显示装置，其中，所述第一导电部和所述第二导电部中的一者包括框体和导电层，所述导电层的至少部分形成于所述框体的开口的底部，所述开口和所述开口内的所述导电层组成所述线形凹槽。
  7. 一种显示装置，其中，所述显示装置包括：
    发光基板，所述发光基板包括基板、多个第一导电部和多个发光器件，所述基板具有相对的第一表面和第二表面，多个所述发光器件设置于所述基板的所述第一表面上，多个所述第一导电部间隔地设置于所述基板的所述第二表面上，所述第一导电部与所述发光器件电性连接；
    驱动基板，位于所述发光基板的出光面的背侧，所述驱动基板靠近所述发光基板的表面上设置有驱动电路和与所述驱动电路连接的多个间隔设置的第二导电部，所述第二导电部与所述第一导电部连接；
    其中，所述第一导电部和所述第二导电部中的一者包括线形凹槽，所述第一导电部和所述第二导电部中的另一者包括点状凸起，所述点状凸起位于所述线形凹槽中。
  8. 根据权利要求7所述的显示装置，其中，所述线形凹槽沿单个方向延伸。
  9. 根据权利要求8所述的显示装置，其中，多个所述发光基板拼接连接，多个所述线形凹槽的延伸方向相同。
  10. 根据权利要求7所述的显示装置，其中，所述线形凹槽包括第一线形凹槽和与所述第一线形凹槽相交的第二线形凹槽，所述第一线形凹槽沿第一方向延伸，第二线形凹槽沿第二方向延伸，所述第一方向与所述第二方向相交。
  11. 根据权利要求10所述的显示装置，其中，多个所述发光基板沿第三方向拼接连接，所述第一方向和所述第二方向中的一者与所述第三方向平行。
  12. 根据权利要求10所述的显示装置，其中，多个所述发光基板沿第三方向与第四方向拼接连接，所述第三方向与所述第四方向相交，所述第三方向与所述第一方向平行，所述第四方向与所述第二方向平行。
  13. 根据权利要求10所述的显示装置，其中，多个所述发光基板沿第三方向与第四方向拼接连接，所述第三方向与所述第四方向相交，所述第一方向与所述第三方向和所述第四方向均相交，所述第二方向与所述第三方向和所述第四方向均相交。
  14. 根据权利要求10所述的显示装置，其中，所述第一线形凹槽与所述第二线形凹槽呈X形、十字形或T形相交。
  15. 根据权利要求7所述的显示装置，其中，所述第一导电部和所述第二导电部中的一者包括框体和导电层，所述导电层的至少部分形成于所述框体的开口的底部，所述开口和所述开口内的所述导电层组成所述线形凹槽。
  16. 根据权利要求15所述的显示装置，其中，所述框体的制备材料包括有机材料，所述导电层的制备材料包括金属或透明导电材料，所述点状凸起的制备材料包括有机导电材料。
  17. 根据权利要求7所述的显示装置，其中，所述点状凸起的高度大于或等于10微米且小于或等于100微米，所述线形凹槽的深度大于或等于10微米且小于或等于100微米。
  18. 根据权利要求7所述的显示装置，其中，所述线形凹槽在延伸方向上的尺寸大于或等于50微米且小于或等于200微米。
  19. 根据权利要求7所述的显示装置，其中，所述基板为柔性基板。
  20. 根据权利要求7所述的显示装置，其中，所述点状凸起与所述线形凹槽沿延伸方向延伸的凹槽侧壁之间具有间隙。
PCT/CN2022/097139 2022-05-25 2022-06-06 显示装置 WO2023226079A1 (zh)

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