WO2023065369A1 - 显示面板、显示装置及拼接显示装置 - Google Patents

显示面板、显示装置及拼接显示装置 Download PDF

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Publication number
WO2023065369A1
WO2023065369A1 PCT/CN2021/125921 CN2021125921W WO2023065369A1 WO 2023065369 A1 WO2023065369 A1 WO 2023065369A1 CN 2021125921 W CN2021125921 W CN 2021125921W WO 2023065369 A1 WO2023065369 A1 WO 2023065369A1
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WO
WIPO (PCT)
Prior art keywords
display surface
display
display panel
line segment
distance
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Application number
PCT/CN2021/125921
Other languages
English (en)
French (fr)
Inventor
王莉莉
冯莎
刘超
汪楚航
王静
贾明明
王欢
齐琪
翟明
Original Assignee
京东方科技集团股份有限公司
京东方晶芯科技有限公司
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.)
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Publication date
Application filed by 京东方科技集团股份有限公司, 京东方晶芯科技有限公司 filed Critical 京东方科技集团股份有限公司
Priority to CN202180003049.0A priority Critical patent/CN116348944A/zh
Priority to EP21961112.6A priority patent/EP4350675A1/en
Priority to PCT/CN2021/125921 priority patent/WO2023065369A1/zh
Priority to TW111140128A priority patent/TWI805515B/zh
Publication of WO2023065369A1 publication Critical patent/WO2023065369A1/zh

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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]

Definitions

  • the present disclosure relates to the field of display technology, and in particular, to a display panel, a display device, and a spliced display device.
  • Micro Light Emitting Diode (Micro LED for short) display technology is mostly used in display devices for seamless splicing, and is called the third generation display technology.
  • the display device adopts the method of side routing, which can realize small-pitch splicing and assembly of the display device, and improve the resolution of the product.
  • a display panel in one aspect, includes: a backplane, a plurality of rear wirings, a plurality of side wirings and a plurality of blocking parts.
  • the backplane includes a display surface, a non-display surface, and a plurality of side surfaces for connecting the display surface and the non-display surface, wherein one side surface is a selected side surface; Referring to the non-display surface, each rear trace includes a first line segment and a second line segment.
  • the plurality of side traces are arranged at intervals on the selected side surface, one end of each side trace is located on the display surface, and the other end is located on the non-display surface; each side trace is connected to the first line Segment electrical connection; the extension direction of the first line segment is the same as the extension direction of the end of the side wiring located on the non-display surface, and the extension direction of the second line segment is the same as the extension direction of the first line segment The directions intersect.
  • the plurality of blocking portions are disposed on the non-display surface, and one blocking portion is disposed between two adjacent first line segments.
  • the material of the blocking portion includes an insulating material.
  • the material of the barrier includes resin.
  • the blocking portion is in contact with an adjacent first line segment.
  • the material of the blocking portion includes a metal material, and there is a distance between the blocking portion and adjacent first line segments.
  • the ratio of the distance between the blocking portion and the adjacent first line segment to the distance between two adjacent first line segments where the blocking portion is located is greater than 1:3.
  • the material of the blocking portion includes at least one of copper, aluminum, silver and gold.
  • the distance between the surface of the blocking portion away from the non-display surface and the non-display surface is greater than the distance between the surface of the first line segment away from the non-display surface and the non-display surface the distance between.
  • the distance between the surface of the blocking portion farther from the non-display surface and the non-display surface is greater than the distance between the surface of the non-display surface and the non-display surface of the first line segment The distance between them is 0.4 ⁇ m to 0.6 ⁇ m larger.
  • the contour shape of the orthographic projection of the blocking portion on the non-display surface includes a rectangle, a square, a trapezoid or a triangle.
  • the display panel further includes a plurality of isolation parts arranged on the non-display surface, and each first line segment is electrically connected to the end part of the side trace on the non-display surface through a connection part.
  • an isolation part is provided between two adjacent connection parts, the isolation part includes insulating material, and there is a distance between the isolation part and the adjacent connection parts.
  • the ratio of the distance between the isolation portion and the adjacent connection portion to the distance between the two adjacent connection portions where the blocking portion is located is greater than 1:3.
  • the isolation portion extends to an intersection line of the non-display surface and the selected side surface.
  • the distance between the surface of the isolation portion away from the non-display surface and the non-display surface is greater than or equal to the distance between the surface of the first line segment away from the non-display surface and the non-display surface distance.
  • the blocking portion and the isolation portion located between two adjacent first line segments are connected.
  • the connected barrier part and the isolation part are integrally structured.
  • a width of the blocking portion in a first direction is greater than a width of the isolation portion in a first direction, and the first direction is perpendicular to an extending direction of the first line segment.
  • the blocking portion and the isolation portion located between two adjacent first line segments are not in contact.
  • a display device including the above-mentioned display panel.
  • a spliced display device comprising a plurality of display devices as described above, and the plurality of display devices are spliced and assembled.
  • Fig. 1A is a plan view of a non-display surface of a display panel provided by some embodiments
  • Fig. 1B is a cross-sectional structure diagram of a display panel provided by some embodiments along the section line AA';
  • Fig. 2 is a side view of a display panel provided by some embodiments using laser etching
  • Fig. 3 is a structural diagram of damage to lines on the non-display surface of the display panel provided by some embodiments;
  • Fig. 4 is a structural diagram of forming the wiring on the side of the display panel by using the flexible mask sputtering process
  • FIG. 5 is a structural diagram of a short circuit on the back of the display panel provided by some embodiments.
  • FIG. 6 is a structural diagram of a short circuit on the side of the display panel provided by some embodiments.
  • FIG. 7 is a structural diagram of a backplane provided by some embodiments of the present disclosure.
  • FIG. 8A is a plan view of the non-display surface of the display panel provided by some embodiments of the present disclosure.
  • FIG. 8B is a structural diagram of a non-display surface of a display panel provided by some embodiments of the present disclosure.
  • Fig. 9 is a cross-sectional structure diagram of the display panel provided by some embodiments of the present disclosure along the section line BB' according to Fig. 8B;
  • FIG. 10 is another structural diagram of the non-display surface of the display panel provided by some embodiments of the present disclosure.
  • Fig. 11 is another structural diagram of the non-display surface of the display panel provided by some embodiments of the present disclosure.
  • Fig. 12 is another structural diagram of the non-display surface of the display panel provided by some embodiments of the present disclosure.
  • Fig. 13 is another structural diagram of the non-display surface of the display panel provided by some embodiments of the present disclosure.
  • Fig. 14 is another structural diagram of the non-display surface of the display panel provided by some embodiments of the present disclosure.
  • Fig. 15 is another structural diagram of the non-display surface of the display panel provided by some embodiments of the present disclosure.
  • Fig. 16 is another structural diagram of the non-display surface of the display panel provided by some embodiments of the present disclosure.
  • Fig. 17 is another structural diagram of the non-display surface of the display panel provided by some embodiments of the present disclosure.
  • Fig. 18A is a cross-sectional structure diagram of the display panel provided according to some embodiments of the present disclosure along the section line FF' according to Fig. 11;
  • Fig. 18B is a cross-sectional structural view of the display panel provided in Fig. 17 along the cutting line CC' according to some embodiments of the present disclosure
  • FIG. 19A is a structural diagram of a non-display surface of a display panel provided by some embodiments of the present disclosure.
  • Fig. 19B is another structural diagram of the non-display surface of the display panel provided by some embodiments of the present disclosure.
  • Fig. 20 is another structural diagram of the non-display surface of the display panel provided by some embodiments of the present disclosure.
  • Fig. 21 is another structural diagram of the non-display surface of the display panel provided by some embodiments of the present disclosure.
  • Fig. 22 is a structural diagram of a non-display surface of a display panel provided by some embodiments of the present disclosure.
  • Fig. 23 is another structural diagram of the non-display surface of the display panel provided by some embodiments of the present disclosure.
  • Fig. 24 is another structural diagram of the non-display surface of the display panel provided by some embodiments of the present disclosure.
  • Fig. 25 is another structural diagram of the non-display surface of the display panel provided by some embodiments of the present disclosure.
  • Fig. 26 is a cross-sectional structure diagram of the display panel provided according to some embodiments of the present disclosure along the cutting line DD' according to Fig. 25;
  • Fig. 27 is another cross-sectional structure diagram of the display panel provided by some embodiments of the present disclosure along the cutting line HH' according to Fig. 24;
  • Fig. 28 is a structural diagram of a display panel provided by some embodiments of the present disclosure.
  • Fig. 29 is a side view of a display panel provided by some embodiments of the present disclosure using laser etching
  • FIG. 30 is a plan view of a laser-etched display panel provided by some embodiments of the present disclosure.
  • Fig. 31 is a structural diagram of a display device provided by some embodiments of the present disclosure.
  • FIG. 32 is a plan view of a spliced display device provided by some embodiments of the present disclosure.
  • first and second are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as “first” and “second” may explicitly or implicitly include one or more of these features. In the description of the embodiments of the present disclosure, unless otherwise specified, "plurality” means two or more.
  • connection When describing some embodiments, the expression “connected” and its derivatives may be used. For example, the term “connected” may be used in describing some embodiments to indicate that two or more elements are in direct physical or electrical contact with each other. The embodiments disclosed herein are not necessarily limited by the context herein.
  • At least one of A, B and C has the same meaning as “at least one of A, B or C” and both include the following combinations of A, B and C: A only, B only, C only, A and B A combination of A and C, a combination of B and C, and a combination of A, B and C.
  • Parallel, “perpendicular”, and “equal” as used herein include the stated situation and the situation similar to the stated situation, and the range of the similar situation is within the acceptable deviation range, wherein the acceptable The range of deviation is as determined by one of ordinary skill in the art taking into account the measurement in question and errors associated with the measurement of the particular quantity (ie, limitations of the measurement system).
  • parallel includes absolute parallelism and approximate parallelism, wherein the acceptable deviation range of approximate parallelism can be, for example, a deviation within 5°; Deviation within 5°.
  • “Equal” includes absolute equality and approximate equality, where the difference between the two that may be equal is less than or equal to 5% of either within acceptable tolerances for approximate equality, for example.
  • Exemplary embodiments are described herein with reference to cross-sectional and/or plan views that are idealized exemplary drawings.
  • the thickness of layers and regions are exaggerated for clarity. Accordingly, variations in shape from the drawings as a result, for example, of manufacturing techniques and/or tolerances are contemplated.
  • example embodiments should not be construed as limited to the shapes of regions illustrated herein but are to include deviations in shapes that result, for example, from manufacturing.
  • the contour of the orthographic projection of the film layer pattern on a certain plane is a rectangle, but the contour of the orthographic projection of the film layer pattern on a certain plane actually produced is a rounded rectangle, or even the sides of the contour are not standard straight line segment.
  • the regions illustrated in the figures are schematic in nature and their shapes are not intended to illustrate the actual shape of a region of a device and are not intended to limit the scope of example embodiments.
  • a single display panel can use the wiring arranged on the side of the panel to realize the connection between the wiring on the display surface of the panel and the driver arranged on the non-display surface of the display panel, so that multiple display panels can be spliced to form a larger-sized display.
  • the distance between adjacent display panels can be smaller.
  • the display panel includes the film layers of pixel units on the front side, B, R and G in FIG.
  • a general term for all signal lines, power lines, control lines, etc., and the back trace 102 is a general term for conductive patterns located on the non-display surface.
  • the damaged location will become a corrosion-inducing point, providing a source for the path of water and oxygen intrusion, further causing line damage.
  • the irradiation direction of the laser LASER is parallel to the y-axis, roughly parallel to the display surface of the panel, and the moving path L1 of the laser is parallel to the x-axis; consider the device on the display surface of the display panel 10 ′ There are many, and the film layer structure is relatively complex.
  • the display panel can be rotated at a certain angle during laser etching.
  • the display surface of the display panel is set to have an included angle ⁇ with the y-axis, and the included angle with the x-axis is (90° + ⁇ ), wherein, ⁇ is not more than 3°, for example, can be 0.8°; so that the front wiring 101 on the display surface of the display panel 10' will not be irradiated by laser light, and damage to the front wiring 101 on the display surface can be avoided , so that the reliability of the display surface can be guaranteed; however, this will cause damage to the back wiring on the non-display surface.
  • the ss position will be irradiated by the laser. If there is a back wiring pattern at the ss position, then A damage point will be formed at the corresponding position.
  • the trace on the back includes a straight line segment and an oblique line segment.
  • the damage point ss will be formed at the intersection of the extension line of the laser etching line and the oblique line segment, that is, the adjacent position between the straight line segment and the oblique line segment will be damaged by the laser.
  • the exposure to the radiation will cause etching damage and affect the quality of the product.
  • the inventor also found that if the flexible mask M is used to directly form the side traces 13a1 of the display panel 10', as shown in FIG. There is a gap between the membrane M and the display panel. When a coating is placed above the mask M, the coating will penetrate into the display surface, non-display surface or side of the display panel 10' through the gap to form a conductive island mm, and the conductive island mm pole It is possible to connect two adjacent side traces 13a1 , so that the areas that should be insulated from each other are conducted to each other, resulting in a short circuit. Exemplarily, under normal circumstances, the thickness of the front wiring 101 and the back wiring 102 of the display panel 10' is in the range of 500-600nm.
  • the short circuit situation of 102 is shown in Figure 5.
  • layers of different colors and shapes are connected sequentially to represent the overall wiring 102 on the back, and their different shapes represent different conductive layers, and different conductive layers are in different positions.
  • insulating layers are arranged between adjacent conductive layers, and different conductive layers are electrically connected through via holes.
  • the short circuit condition of the side trace 13a1 is shown in FIG. 6 .
  • the spacing between the side traces of the display panel 10' is small, which is more likely to cause short circuit problems caused by plating penetration.
  • laser irradiation can be used to etch the location of the conductive island to break the short circuit.
  • this repair method also has the problem of laser accidentally damaging the normal wiring pattern.
  • the display panel 10 is a Micro LED display panel or a mini LED display panel.
  • the display panel 10 includes: a backplane 1 , a plurality of rear traces 121 , a plurality of side traces 13 a 1 and a plurality of blocking portions 2 .
  • the backplane 1 includes a display surface 11 , a non-display surface 12 and a plurality of side surfaces 13 for connecting the display surface 11 and the non-display surface 12 , wherein one side surface 13 is a selected side surface 13 a.
  • each rear trace 121 includes a first line segment 121 a and a second line segment 121 b.
  • first line segments 121a of the plurality of rear traces 121 are arranged in parallel
  • the second line segments 121b of the plurality of rear traces 121 are substantially parallel
  • the spacing between the second line segments 121b is substantially the same.
  • the first line segment 121a of the plurality of rear traces 121 is close to the end of the selected side surface 13a, and has a distance D greater than 0 from the selected side surface 13a, for example, the distance D is 20 ⁇ m ⁇ 100 ⁇ m, for example, the distance D can be 70 ⁇ m, or the distance D may be 80 ⁇ m.
  • the end of the second line segment 121b of each back trace 121 away from the first line segment 121a is connected with a binding terminal 121d, and the binding terminal 121d is used for connecting with an external circuit board and for receiving an external circuit The electrical signal output by the board.
  • a plurality of side traces 13a1 are arranged at intervals on the selected side surface 13a. One end of each side trace 13a1 is located on the display surface 11, and the other end is located on the non-display surface 12. As shown in FIG. 9, each side trace 13a1 is located on the non-display surface 12. One end of the display surface 12 is electrically connected to the first line segment 121a; the side wiring 13a1 is used to connect the wiring of the display surface 11 and the non-display surface 12, so as to meet the requirement of narrowing the frame of the display device.
  • the extension direction of the first line segment 121a is the same as the extension direction of the part of the side trace 13a1 located on the non-display surface 12, and the extension direction of the second line segment 121b intersects the extension direction of the first line segment 121a.
  • the extension direction of the first line segment 121a of the display surface 12 and the portion of the side trace 13a1 on the non-display surface 12 are the same, so that the end of the side trace 13a1 overlaps with the end of the first line segment 121a.
  • the length L2 of the portion of the side trace 13a1 located on the non-display surface 12 is slightly greater than the distance D, for example, the length L2 may be 200 ⁇ m, so as to ensure reliable connection between the side trace 13a1 and the corresponding first line segment 121a.
  • a plurality of blocking portions 2 are disposed on the non-display surface 12 , and one blocking portion 2 is disposed between two adjacent first line segments 121 a.
  • a blocking portion 2 is disposed between two adjacent first line segments 121a, and the blocking portion 2 is disposed at the end of the first line segment 121a where the first line segment 121a connects to the second line segment 121b.
  • a blocking part 2 is provided between the first line segments 121a of any two adjacent backside traces 121, and the blocking part 2 is located at the end of the first line segment 121a away from the selected side surface 13a.
  • the barrier part 2 can block the laser LASER, and the barrier part 2 itself can be used as a sacrificial layer for laser etching, effectively protecting the back wiring 121 is free from laser LASER etching damage, prevents further corrosion of the line film layer due to laser LASER damage, and improves product quality.
  • the barrier part 2 includes an insulating material.
  • the barrier part 2 can be made of resin.
  • the barrier part 2 can be connected with the adjacent first line segment 121a direct contact.
  • the barrier part 2 may not be in contact with the first line segment 121a.
  • the contour shape of the orthographic projection of the blocking portion 2 on the non-display surface 12 includes a rectangle, square, trapezoid or triangle, and there is no specific limitation on the contour shape of the orthographic projection of the blocking portion 2 on the non-display surface 12 , the blocking part 2 can block the laser light.
  • the contour shape of the orthographic projection of the blocking portion 2 on the non-display surface 12 is rectangle.
  • the contour shape of the orthographic projection of the blocking portion 2 on the non-display surface 12 is a square, and the distance between two adjacent first line segments 121a can be different.
  • the side lengths of different blocking portions 2 will be different, so the adjacent The size of the square blocking portion 2 in contact with the two first line segments 121a can be different.
  • the distance between the two first line segments 121a in the middle in FIG. The blocking part 2 is smaller.
  • the contour shape of the orthographic projection of the blocking portion 2 on the non-display surface 12 is trapezoidal, wherein the upper base of the trapezoid is closer to the selected side surface 13a than the lower base, in addition, also due to the adjacent two first
  • the distance between the line segments 121a may be different, therefore, the size of the trapezoidal blocking portion 2 that is in contact with two adjacent first line segments 121a may be different.
  • FIG. 12 the contour shape of the orthographic projection of the blocking portion 2 on the non-display surface 12 is trapezoidal, wherein the upper base of the trapezoid is closer to the selected side surface 13a than the lower base, in addition, also due to the adjacent two first
  • the size of the trapezoidal blocking portion 2 that is in contact with two adjacent first line segments 121a may be different.
  • the contour shape of the orthographic projection of the blocking portion 2 on the non-display surface 12 is a triangle, wherein the apex of the triangle is close to the selected side surface 13 a relative to the opposite side of the apex.
  • the above content shows an example of the contour shape of the orthographic projection of the blocking portion 2 on the non-display surface 12 , and is not limited thereto, as long as the blocking portion 2 can block the laser light.
  • first line segments 121a of different backside traces 121 are different in the direction perpendicular to their extension, and the distances between the first line segments 121a of two adjacent backside traces 121 are different, therefore The sizes of the blocking parts 2 located between two different adjacent first line segments 121a may be different, but the shapes are similar.
  • the contour shape of the orthographic projection of the blocking portion 2 on the non-display surface 12 is a triangle, wherein the apex of the triangle is opposite to the opposite side of the apex Close to the selected side surface 13a, the apex of the triangle can also be away from the selected side surface 13a with respect to the side opposite to the apex. There is no limit to this, as long as the blocking layer 2 can block the laser light.
  • the contour shape of the orthographic projection of the blocking portion 2 on the non-display surface 12 is Rectangle;
  • the contour shape of the orthographic projection of the blocking portion 2 on the non-display surface 12 also includes a square, trapezoid or triangle, which will not be repeated here.
  • the blocking portion 2 includes a metal material.
  • the blocking portion 2 can be made of at least one of copper, aluminum, silver and gold, for example, the blocking portion 2 is made of copper, or silver, or copper-aluminum alloy, etc. .
  • the distance between the barrier part 2 and the adjacent first line segment 121a there is a distance between them; the ratio of the distance d1 between the blocking portion 2 and the adjacent first line segment 121a to the distance dd between the two adjacent first line segments 121a where the blocking portion 2 is located is greater than 1:3, this
  • the distance dd at refers to the distance between the projections of the opposite side surfaces of two adjacent first line segments 121a on the non-display surface 12, where the distance d1 refers to the blocking portion 2 and an adjacent first line segment The distance between the projections of two opposite side surfaces of 121 a on the non-display surface 12 .
  • the distance d1 between the barrier portion 2 and the first line segment 121a can be set to 25 ⁇ m. Setting the ratio of the distance d1 between the blocking portion 2 and the adjacent first line segment 121a to the distance dd between the two adjacent first line segments 121a where the blocking portion 2 is located is greater than 1:3 can satisfy Avoiding the short circuit caused by the connection of the first line segment 121a caused by the barrier layer 2 can also play a role in blocking the laser LASER from etching the back line 121 .
  • the contour shape of the orthographic projection of the blocking portion 2 on the non-display surface 12 includes a rectangle, a square, a trapezoid or a triangle.
  • the contour shape of the orthographic projection of the blocking portion 2 on the non-display surface 12 is a rectangle; as shown in FIG. 15 , the blocking portion 2 is The outline shape of the orthographic projection on the non-display surface 12 is a square; as shown in Figure 16, the outline shape of the orthographic projection of the blocking portion 2 on the non-display surface 12 is a trapezoid, wherein the upper bottom of the trapezoid is close to the selected bottom for the lower bottom Side surface 13a; as shown in FIG.
  • the contour shape of the orthographic projection of the blocking portion 2 on the non-display surface 12 is a triangle, wherein the apex of the triangle is close to the selected side surface 13a relative to the opposite side of the apex.
  • the above content shows an example of the contour shape of the orthographic projection of the blocking portion 2 on the non-display surface 12 , and is not limited thereto, as long as the blocking portion 2 can block the laser light.
  • the distance d1 between the blocking portion 2 and the adjacent first line segment 121a refers to the shortest distance between the two opposing surfaces of the blocking portion 2 and the adjacent first line segment 121a.
  • first line segments 121a of different backside traces 121 are different in the direction perpendicular to their extension, and the distances between the first line segments 121a of two adjacent backside traces 121 are different, therefore The sizes of the blocking parts 2 located between two different adjacent first line segments 121a may be different, but the shapes are similar.
  • the distance d2 between the surface bm1 of the blocking portion 2 away from the non-display surface 12 and the non-display surface 12 is greater than the distance d2 between the surface bm2 of the first line segment 121a away from the non-display surface 12 The distance d3 of the non-display surface 12 .
  • the distance d2 of 12 is 0.4 ⁇ m to 0.6 ⁇ m greater than the distance d3 of the first line segment 121a away from the surface bm2 of the non-display surface 12.
  • the distance d2 is 0.5 ⁇ m greater than the distance d3, or d2 is 0.6 ⁇ m greater than d3 , or d2 is 0.4 ⁇ m larger than d3, which is not limited in the present disclosure.
  • the distance d2 between the surface bm1 of the blocking portion 2 away from the non-display surface 12 and the non-display surface 12 is farther than the first line segment 121a.
  • the surface bm2 of the non-display surface 12 has a distance d3 greater than 0.4 ⁇ m to 0.6 ⁇ m, for example, the distance d2 is 0.5 ⁇ m greater than the distance d3, or the distance d2 is 0.6 ⁇ m greater than the distance d3, or the distance d2 is 0.4 ⁇ m greater than the distance d3 , the present disclosure does not limit this.
  • the barrier part 2 can protect the back traces 121 Sufficient protection is carried out to prevent the wiring 121 on the back surface from being etched and damaged by the laser.
  • the display panel 10 further includes a plurality of isolation portions 3 disposed on the non-display surface 12, and the end of the first line segment 121a close to the selected side surface 13a is used to communicate with the side surface.
  • the ends 13aa of the traces 13a1 located on the non-display surface 12 are overlapped, and the end of the first line segment 121a close to the selected side surface 13a is called the connecting portion 121c.
  • the connecting portion 121c is the first line segment 121a
  • Each first line segment 121a is electrically connected to the end 13aa of the side trace 13a1 on the non-display surface 12 through the connecting portion 121c.
  • the connected connecting portion 121c is connected to the end portion of the side trace 13a1
  • the projections of 13aa on the non-display surface 12 of the display panel 10 overlap or partially overlap.
  • An isolation part 3 is provided between two adjacent connecting parts 121c.
  • an isolating portion 3 is provided between two adjacent connecting portions 121c.
  • the isolating portion 3 includes an insulating material, and there is a distance d4 between the isolating portion 3 and the adjacent connecting portion 121c.
  • the ratio of the distance between the isolation part 3 and the adjacent connecting part 121c to the distance between the two adjacent connecting parts 3 where the blocking part 2 is located is greater than 1:3.
  • each first line segment 121a is electrically connected to the end 13aa of the side trace 13a1 on the non-display surface 12 through a connecting portion 121c, and an isolation portion 3 is provided between two adjacent connecting portions 121c.
  • the isolation part 3 adopts an insulating material, and there is a distance between the isolation part 3 and the adjacent connection part 121c.
  • the distance d4 between the isolation part 3 and the adjacent connection part 121c refers to the distance between the isolation part 3 and the adjacent connection part 121c.
  • an isolation portion 3 made of an insulating material is provided between the connecting portions 121c of adjacent first line segments 121a. There is a set distance between the adjacent connection part 121c, and the permeable membrane layer will be blocked by the isolation part 3, preventing the connection of the permeable membrane layers on both sides of the isolation part 3, effectively blocking the first line segment caused by the permeable membrane layer 121a short circuit problem, improve the yield rate of the display panel, and further save the step of using laser to etch and repair the traces 121 on the back of the display panel 10 in the later stage, and only need to repair the conductive island between the traces 13a1 on the side of the display panel 10 mm Laser repair can be done.
  • the isolation part 3 cooperates with the barrier part 2 provided between the above-mentioned first line segments 121a, which can not only avoid laser etching and repairing damage to the wiring 121 on the back of the display panel 10, but also block the connection part of the first line segment 121a caused by the penetration of the sprayed plating layer.
  • the short circuit of 121c can improve the product quality of the display panel 10 .
  • the distance d4 between the isolation portion 3 and the adjacent connecting portion 121c can be set to 25 ⁇ m. Setting the ratio of the distance between the isolation part 3 and the adjacent connection part 121c to the distance between the two adjacent connection parts 3 where the barrier part 2 is located is greater than 1:3 can effectively avoid the penetration of the sprayed coating The resulting problem of the short circuit of the connecting portion 121c of the first line segment 121a arises.
  • one end of the isolation portion 3 extends to the intersection of the non-display surface 12 and the selected side surface 13a.
  • the extension direction of the isolation portion 3 is the same as the extension direction of the first line segment 121a.
  • One end of the isolation part 3 extends to the intersection of the non-display surface 12 and the selected side surface 13a, and the isolation part 3 protects the extension part of the first line segment 121a connecting part 121c and the side trace 13a1 on the non-display surface 12, Therefore, the non-display surface 12 of the display panel 10 will not have the problem of circuit short circuit caused by plating penetration.
  • the blocking portion 2 and the isolation portion 3 located between two adjacent first line segments 121a are connected.
  • the connected barrier part and the isolation part are integrally structured.
  • the barrier part 2 and the isolation part 3 can be made of the same material, for example, the same resin material, and the connected barrier part 2 and the isolation part 3 can be formed into an integrated structure by one photolithography process.
  • the blocking portion 2 when the blocking portion 2 is made of an insulating material, the blocking portion 2 can be in contact with its adjacent first line segment 121a, and the contour shape of the orthographic projection of the blocking portion 2 on the non-display surface 12 can adopt Different shapes, for example, can be rectangle, square, trapezoid or triangle, which will not be repeated here. As shown in Figure 20, the blocking part 2 and the isolation part 3 between two adjacent first line segments 121a are connected, the blocking part 2 is in contact with the adjacent first line segment 121a, and the blocking part 2 is in non-display The contour shape of the orthographic projection on the surface 12 is a rectangle.
  • the width k1 of the blocking portion 2 in the first direction is greater than the width k2 of the isolation portion 3 in the first direction, the first direction is perpendicular to the extending direction of the first line segment 121a, and the blocking portion 2
  • the width k1 in the first direction is the size of the projection of the blocking portion 2 on the non-display surface 12 in the first direction
  • the width k2 of the isolation portion 3 in the first direction is the projection of the isolation portion 3 on the non-display surface 12 in the first direction.
  • Dimensions in the first direction for example, the barrier part 2 and the isolation part 3 can be integrally formed into a T-shaped structure.
  • the width k1 in the first direction and the distance dd between two adjacent first line segments 121 a may be equal.
  • the blocking portion 2 when the blocking portion 2 is made of an insulating material, the blocking portion 2 may not be in contact with its adjacent first line segment 121a, and the contour shape of the orthographic projection of the blocking portion 2 on the non-display surface 12 may be Different shapes are adopted, for example, it may be a rectangle, a square, a trapezoid or a triangle, and the specific content is as described above, which will not be repeated here.
  • the barrier part 2 is made of insulating material, and the barrier part 2 and the isolation part 3 between two adjacent first line segments 121a are connected, and the barrier part 2 does not contact the adjacent first line segment 121a.
  • the outline shape of the orthographic projection of the blocking portion 2 on the non-display surface 12 is a rectangle.
  • the width k1 of the blocking portion 2 in the first direction and the width k2 of the isolation portion 2 in the first direction are not specifically limited.
  • the first direction is perpendicular to the extending direction of the first line segment 121a.
  • the blocking part 2 and the isolation part 3 located between two adjacent first line segments 121a are connected.
  • the line segment 121a is not in contact, and the connected blocking portion 2 and the isolation portion 3 need to be fabricated separately by two photolithography processes, and the contour shape of the orthographic projection of the blocking portion 2 on the non-display surface 12 includes a rectangle, a square, a trapezoid or a triangle , the specific content is as above, and will not be repeated here.
  • the blocking part 2 is not in contact with its adjacent first line segment 121a, the blocking part 2 and the isolation part 3 between two adjacent first line segments 121a are connected, and the blocking part 2 is not shown
  • the contour shape of the orthographic projection on the surface 12 is a trapezoid, wherein the upper base of the trapezoid is closer to the selected side surface 13a than the lower base.
  • the width k1 of the blocking portion 2 in the first direction and the width k2 of the isolation portion 2 in the first direction are not specifically limited.
  • the first direction is perpendicular to the extending direction of the first line segment 121a.
  • the blocking portion 2 and the isolation portion 3 located between two adjacent first line segments 121a are not in contact.
  • the barrier part 2 when the barrier part 2 is made of an insulating material, the barrier part 2 may be in contact with its adjacent first line segment 121a, and the barrier part 2 and the barrier part 2 located between two adjacent first line segments 121a
  • the isolation part 3 is not in contact, and the contour shape of the orthographic projection of the blocking part 2 on the non-display surface 12 can adopt different shapes, for example, it can be a rectangle, a square, a trapezoid or a triangle, which will not be repeated here. As shown in FIG.
  • the outline shape of the orthographic projection of the blocking portion 2 on the non-display surface 12 adopts a triangle, wherein the apex of the triangle is close to the selected side surface 13a relative to the opposite side to which the apex is opposite, and the blocking portion 2 is opposite to the selected side surface 13a.
  • Adjacent first line segments 121a are in contact, and the blocking portion 2 and the isolation portion 3 located between two adjacent first line segments 121a are not in contact.
  • the barrier part 2 when the barrier part 2 is made of insulating material, the barrier part 2 may not be in contact with the adjacent first line segment 121a, and the barrier part 2 between two adjacent first line segments 121a Not in contact with the isolation part 3, the contour shape of the orthographic projection of the blocking part 2 on the non-display surface 12 can adopt different shapes, for example, it can be a rectangle, a square, a trapezoid or a triangle, which will not be repeated here.
  • the blocking portion 2 is not in contact with its adjacent first line segment 121a, the blocking portion 2 and the isolation portion 3 between two adjacent first line segments 121a are not in contact, and the blocking portion 2 is in non-display
  • the contour shape of the orthographic projection on the surface 12 is a triangle.
  • the blocking portion 2 when the blocking portion 2 is made of a metal material, the blocking portion 2 is not in contact with its adjacent first line segment 121a, and the blocking portion 2 between two adjacent first line segments 121a and The isolation part 3 is not in contact, and the contour shape of the orthographic projection of the blocking part 2 on the non-display surface 12 can adopt different shapes, for example, it can be a rectangle, a square, a trapezoid or a triangle, which will not be repeated here.
  • the blocking portion 2 is not in contact with its adjacent first line segment 121a, the blocking portion 2 and the isolation portion 3 between two adjacent first line segments 121a are not in contact, and the blocking portion 2 is in non-display
  • the contour shape of the orthographic projection on the surface 12 is a triangle.
  • the distance d5 between the surface bm3 of the isolation part 3 away from the non-display surface 12 and the non-display surface 12 is greater than or equal to the distance d5 between the surface bm4 and the surface bm4 of the connecting part 121c away from the non-display surface 12.
  • the distance d6 of the non-display surface 12 is greater than or equal to the distance d5 between the surface bm4 and the surface bm4 of the connecting part 121c away from the non-display surface 12.
  • the distance d5 between the surface bm3 of the isolation part 3 away from the non-display surface 12 and the non-display surface 12 is greater than or equal to the surface bm4 of the connection part 121c away from the non-display surface 12
  • the distance d6 from the non-display surface 12 makes the mask M and the isolation part 3 adhere closely, which can effectively block the penetration of the plating layer, further improve the blocking effect of the isolation part 3, and improve the yield of the display panel.
  • the distance d5 between the surface bm3 of the isolation part 3 away from the non-display surface 12 and the non-display surface 12 is equal to the distance between the surface bm4 of the connecting part 121c away from the non-display surface 12 and the non-display surface 12 d6.
  • the distance d5 between the surface bm3 of the isolation portion 3 away from the non-display surface 12 and the non-display surface 12 is greater than the distance between the surface bm4 of the connecting portion 121c away from the non-display surface 12 and the non-display surface 12 d6.
  • the surface bm4 of the connecting portion 121c away from the non-display surface 12 may be the same surface as the surface bm2 of the first line segment 121a away from the non-display surface 12 .
  • the display panel 10 includes a plurality of light emitting devices 1002 disposed on the display surface, for example, the light emitting devices are Micro LED chips or mini LED chips.
  • the display panel 10 further includes a first protection layer 1003 and a second protection layer 1004.
  • the first protection layer 1003 covers a plurality of side traces 13a1, and the first protection layer 1003 is arranged on the side away from the backplane 1 of the plurality of side traces 13a1.
  • the first protection layer 1003 may fill the gap areas of the multiple side traces 13a1 and cover the surfaces of the multiple side traces 13a1.
  • the first protective layer 1003 plays the role of electrical insulation and waterproofing against oxygen corrosion, avoiding problems such as peeling, disconnection, oxidation, etc.
  • the multiple side wires 13a1 are U-shaped, and the first protective layer 1003 is also U-shaped.
  • the second protective layer 1004 is disposed on the side of the first protective layer 1003 away from the side traces 13a1, and the second protective layer 1004 covers the film layers of the display surface 11 of the display panel 10, the first protective layer 1003, the rear traces 121, etc. .
  • the second protection layer 1004 can further protect multiple side traces, and protect the traces on the display surface 11 and the back traces 121 .
  • the part of the second protective layer 1004 located on the display surface 11 may be a black glue layer, for example, the material of the black glue layer is black silicone or black resin.
  • the part of the black glue layer covering the plurality of light emitting devices is thinner than other parts, so as to protect the layers of the display surface without affecting the light emitting effect of the light emitting devices.
  • the laser LASER can damage the traces 121 on the back of the display panel 10, an alternative solution for:
  • some embodiments of the present disclosure also provide a display panel, including: a backplane 1, a plurality of rear traces 121 and a plurality of side traces 13a1, a backplane 1, a plurality of rear traces 121
  • a display panel including: a backplane 1, a plurality of rear traces 121 and a plurality of side traces 13a1, a backplane 1, a plurality of rear traces 121
  • the specific structure of the plurality of side traces 13a1 is as above, and will not be repeated here, wherein, the contact position of the first line segment 121a and the second line segment 121b of the plurality of back traces 121 is far away from the multiple side traces etched by the laser.
  • Line 13a1 refers to the range of laser focal depth.
  • the irradiation direction of the laser LASER is parallel to Y
  • the moving path L1 of the laser is parallel to the X axis
  • the display panel 10 is rotated by a certain angle during laser etching, for example
  • the display surface 11 of the display panel 10 is set to have an included angle ⁇ with the Y axis, and an included angle with the X axis is (90°+ ⁇ ), where ⁇ is not more than 3°, for example, it can be 1°, so that the display panel 10
  • the film layer on the display surface 11 will not be irradiated by laser light, which can avoid damage to the film layer of the display surface 11, thereby ensuring the reliability of the display surface 11.
  • the boundary LL that the laser LASER can illuminate on the non-display surface 12 of the display panel 10 refers to the boundary LL that the laser LASER can illuminate from the intersection line between the non-display surface 12 and the selected side surface 13a.
  • the boundary, the position of the boundary LL is related to the angle ⁇ and the size range L1 of the laser LASER in its moving direction X, for example, the laser LASER moving direction X is perpendicular to its light emitting direction Y.
  • the determination of the moving size range L1 of the laser LASER in the moving direction X is related to the length L2 of the side trace 13a1 located on the non-display surface 12 .
  • the length L2 of the side trace 13a1 located on the non-display surface 12 determines the moving size range L1 of the laser LASER in the moving direction X, and the moving size range L1 and angle ⁇ of the laser LASER in the moving direction X determine the laser LASER
  • the boundary line LL that can be irradiated by the non-display surface 12 of the display panel 10 the area where the boundary line LL is close to the intersection line between the non-display surface 12 and the selected side surface 13a is the range involved in the laser focal depth, and the boundary line LL is far away from the non-display surface 12
  • the area intersecting with the selected side surface 13a is the range that cannot be covered by the laser focal depth, and the contact position between the first line segment 121a and the second line segment 121b is arranged in a range that cannot be covered by the laser focal depth, that is, the boundary line LL is far away from the non-display surface 12 intersects with the selected side surface 13a to avoid damage to the backside wiring 121 when the
  • the setting position of the blocking part 2 is related to the range of the focal depth of the laser.
  • the depth of focus is within range to provide further protection for the traces 121 on the backside.
  • the display device 100 includes the above-mentioned display panel 10 and also includes a driving circuit 1001 electrically connected to the rear wiring 121 .
  • the driving circuit 1001 is electrically connected to the back wiring 121 through a flexible circuit board.
  • the beneficial effect of the display device 100 provided by the present disclosure is the same as that of the embodiment of the display panel 10 provided by the first aspect of the present disclosure, and will not be repeated here.
  • a spliced display device 1000 is provided, as shown in FIG. 32 , comprising a plurality of the above-mentioned display devices 100 , and the multiple display devices 100 are spliced and assembled to form the spliced display device 1000 .
  • the beneficial effects of the spliced display device 1000 provided in the present disclosure are the same as those of the embodiment of the display panel 10 provided in the first aspect of the present disclosure, and will not be repeated here.

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  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Electroluminescent Light Sources (AREA)
  • Liquid Crystal (AREA)
  • Displays For Variable Information Using Movable Means (AREA)
  • Indicating And Signalling Devices For Elevators (AREA)

Abstract

一种显示面板（10），包括背板（1）、多条背面走线（121）、多条侧面走线（13a1）和多个阻挡部（2），背板（1）包括显示面（11）、非显示面（12）及连接显示面（11）和非显示面（12）的多个侧表面（13），其中一个侧表面（13）为选定侧表面（13a）；多条背面走线（121）间隔设置于非显示面（12），每条背面走线（121）包括第一线段（121a）和第二线段（121b）；多条侧面走线（13a1）间隔设置于选定侧表面（13a），每条侧面走线（13a1）一端位于显示面（11）另一端位于非显示面（12），侧面走线（13a1）与第一线段（121a）电连接；第一线段（121a）的延伸方向与侧面走线（13a1）位于非显示面（12）的端部的延伸方向相同，第二线段（121b）的延伸方向与第一线段（121a）相交；多个阻挡部（2）设置于非显示面（12），相邻两个第一线段（121a）之间有一个阻挡部（2）。

Description

显示面板、显示装置及拼接显示装置 技术领域
本公开涉及显示技术领域，尤其涉及一种显示面板、显示装置及拼接显示装置。
背景技术
微型发光二极管(Micro Light Emitting Diode，简称Micro LED)显示技术作为新一代的显示技术，多应用于实现无缝拼接的显示装置，被称为第三代显示技术。对显示装置采用侧面走线的方式可以实现显示装置的小间距拼接组装，提高产品的分辨率。
发明内容
一方面，提供一种显示面板。所述显示面板包括：背板，多条背面走线，多条侧面走线和多个阻挡部。所述背板包括显示面、非显示面及用于连接所述显示面和非显示面的多个侧表面，其中一个侧表面为选定侧表面；所述多条背面走线间隔设置于所述非显示面，每条背面走线包括第一线段和第二线段。所述多条侧面走线间隔设置于所述选定侧表面，每条侧面走线的一端位于所述显示面，另一端位于所述非显示面；每条侧面走线与所述第一线段电连接；所述第一线段的延伸方向与所述侧面走线位于所述非显示面的端部的延伸方向相同，所述第二线段的延伸方向与所述第一线段的延伸方向相交。所述多个阻挡部设置于所述非显示面，相邻两个第一线段之间设置有一个阻挡部。
在一些实施例中，所述阻挡部的材料包括绝缘材料。
在一些实施例中，所述阻挡部的材料包括树脂。
在一些实施例中，所述阻挡部与相邻的第一线段相接触。
在一些实施例中，所述阻挡部的材料包括金属材料，所述阻挡部与相邻的第一线段之间具有间距。
在一些实施例中，所述阻挡部与相邻的第一线段之间的距离，与所述阻挡部所在的相邻两个第一线段之间的距离的比值大于1:3。
在一些实施例中，所述阻挡部的材料包括铜、铝、银和金中的至少一种。
在一些实施例中，所述阻挡部远离所述非显示面的表面与所述非显示面之间的距离，大于所述第一线段远离所述非显示面的表面与所述非显示面的之间距离。
在一些实施例中，所述阻挡部远离所述非显示面的表面与所述非显示面 之间的距离，比所述第一线段远离所述非显示面的表面与所述非显示面之间的距离大0.4μm～0.6μm。
在一些实施例中，所述阻挡部在所述非显示面上的正投影的轮廓形状包括长方形、正方形、梯形或者三角形。
在一些实施例中，所述显示面板还包括设置于所述非显示面的多个隔离部，每个第一线段通过连接部与所述侧面走线位于所述非显示面的端部电连接，相邻两个连接部之间设置有一个隔离部，所述隔离部包括绝缘材料，所述隔离部与相邻的连接部之间具有间距。
在一些实施例中，所述隔离部与相邻的连接部之间的距离，与所述阻挡部所在的相邻两个连接部之间的距离的比值大于1:3。
在一些实施例中，所述隔离部延伸至所述非显示面与所述选定侧表面的交线。
在一些实施例中，所述隔离部远离所述非显示面的表面与所述非显示面的距离，大于或等于所述第一线段远离所述非显示面的表面与所述非显示面的距离。
在一些实施例中，位于相邻两个第一线段之间的阻挡部和隔离部相连接。
在一些实施例中，在所述阻挡部采用绝缘材料的情况下，相连接的阻挡部和隔离部为一体结构。
在一些实施例中，所述阻挡部在第一方向的宽度大于所述隔离部在第一方向的宽度，所述第一方向与所述第一线段的延伸方向垂直。
在一些实施例中，位于相邻两个第一线段之间的阻挡部和隔离部不接触。
另一方面，提供一种显示装置，包括如上所述的显示面板。
又一方面，提供一种拼接显示装置，包括多个如上所述的显示装置，多个所述显示装置拼接组装。
附图说明
为了更清楚地说明本公开中的技术方案，下面将对本公开一些实施例中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本公开的一些实施例的附图，对于本领域普通技术人员来讲，还可以根据这些附图获得其他的附图。此外，以下描述中的附图可以视作示意图，并非对本公开实施例所涉及的产品的实际尺寸、方法的实际流程、信号的实际时序等的限制。
图1A为一些实施例所提供的显示面板非显示面的平面图；
图1B为一些实施例所提供的显示面板沿剖切线AA’的截面结构图；
图2为一些实施例所提供的显示面板采用激光刻蚀的侧视图；
图3为一些实施例所提供的显示面板非显示面线路损伤的结构图；
图4为采用柔性掩膜板溅射工艺形成显示面板侧面走线的结构图；
图5为一些实施例所提供的显示面板背面走线短路情况的结构图；
图6为一些实施例所提供的显示面板侧面走线短路情况的结构图；
图7为本公开一些实施例所提供的背板的结构图；
图8A为本公开一些实施例所提供的显示面板非显示面的平面结构图；
图8B为本公开一些实施例所提供的显示面板非显示面的结构图；
图9为本公开一些实施例根据图8B所提供的显示面板沿剖切线BB’的截面结构图；
图10为本公开一些实施例所提供的显示面板非显示面的另一个结构图；
图11为本公开一些实施例所提供的显示面板非显示面的又一个结构图；
图12为本公开一些实施例所提供的显示面板非显示面的又一个结构图；
图13为本公开一些实施例所提供的显示面板非显示面的又一个结构图；
图14为本公开一些实施例所提供的显示面板非显示面的又一个结构图；
图15为本公开一些实施例所提供的显示面板非显示面的又一个结构图；
图16为本公开一些实施例所提供的显示面板非显示面的又一个结构图；
图17为本公开一些实施例所提供的显示面板非显示面的又一个结构图；
图18A为本公开一些实施例根据图11所提供的显示面板沿剖切线FF’的截面结构图；
图18B为本公开一些实施例根据图17所提供的显示面板沿剖切线CC’的截面结构图；
图19A为本公开一些实施例所提供的显示面板非显示面的结构图；
图19B为本公开一些实施例所提供的显示面板非显示面的又一个结构 图；
图20为本公开一些实施例所提供的显示面板非显示面的又一个结构图；
图21为本公开一些实施例所提供的显示面板非显示面的又一个结构图；
图22为本公开一些实施例所提供的显示面板非显示面的结构图；
图23为本公开一些实施例所提供的显示面板非显示面的另一个结构图；
图24为本公开一些实施例所提供的显示面板非显示面的又一个结构图；
图25为本公开一些实施例所提供的显示面板非显示面的又一个结构图；
图26为本公开一些实施例根据图25所提供的显示面板沿剖切线DD’的截面结构图；
图27为本公开一些实施例根据图24所提供的显示面板沿剖切线HH’的另一种截面结构图；
图28为本公开一些实施例所提供的显示面板的结构图；
图29为本公开一些实施例所提供的显示面板采用激光刻蚀的侧视图；
图30为本公开一些实施例所提供的显示面板采用激光刻蚀的平面结构图；
图31为本公开一些实施例所提供的显示装置的结构图；
图32为本公开一些实施例所提供的拼接显示装置的平面结构图。
具体实施方式
下面将结合附图，对本公开一些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公开一部分实施例，而不是全部的实施例。基于本公开所提供的实施例，本领域普通技术人员所获得的所有其他实施例，都属于本公开保护的范围。
除非上下文另有要求，否则，在整个说明书和权利要求书中，术语“包括(comprise)”及其其他形式例如第三人称单数形式“包括(comprises)”和现在分词形式“包括(comprising)”被解释为开放、包含的意思，即为“包含，但不限于”。在说明书的描述中，术语“一个实施例(one embodiment)”、“一些实施例(some embodiments)”、“示例性实施例(exemplary embodiments)”、 “示例(example)”、“特定示例(specific example)”或“一些示例(some examples)”等旨在表明与该实施例或示例相关的特定特征、结构、材料或特性包括在本公开的至少一个实施例或示例中。上述术语的示意性表示不一定是指同一实施例或示例。此外，所述的特定特征、结构、材料或特点可以以任何适当方式包括在任何一个或多个实施例或示例中。
以下，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本公开实施例的描述中，除非另有说明，“多个”的含义是两个或两个以上。
在描述一些实施例时，可能使用了“连接”及其衍伸的表达。例如，描述一些实施例时可能使用了术语“连接”以表明两个或两个以上部件彼此间有直接物理接触或电接触。这里所公开的实施例并不必然限制于本文内容。
“A、B和C中的至少一个”与“A、B或C中的至少一个”具有相同含义，均包括以下A、B和C的组合：仅A，仅B，仅C，A和B的组合，A和C的组合，B和C的组合，及A、B和C的组合。
本文所使用的“平行”、“垂直”、“相等”包括所阐述的情况以及与所阐述的情况相近似的情况，该相近似的情况的范围处于可接受偏差范围内，其中所述可接受偏差范围如由本领域普通技术人员考虑到正在讨论的测量以及与特定量的测量相关的误差(即，测量系统的局限性)所确定。例如，“平行”包括绝对平行和近似平行，其中近似平行的可接受偏差范围例如可以是5°以内偏差；“垂直”包括绝对垂直和近似垂直，其中近似垂直的可接受偏差范围例如也可以是5°以内偏差。“相等”包括绝对相等和近似相等，其中近似相等的可接受偏差范围内例如可以是相等的两者之间的差值小于或等于其中任一者的5％。
本文参照作为理想化示例性附图的剖视图和/或平面图描述了示例性实施方式。在附图中，为了清楚，放大了层和区域的厚度。因此，可设想到由于例如制造技术和/或公差引起的相对于附图的形状的变动。因此，示例性实施方式不应解释为局限于本文示出的区域的形状，而是包括因例如制造而引起的形状偏差。例如，理想情况下，膜层图案在某一平面的正投影的轮廓为矩形，然而实际制作出来的膜层图案在某一平面的正投影的轮廓为圆角矩形，或者甚至轮廓的边不是标准的直线段。因此，附图中所示的区域本质上是示意性的，且它们的形状并非旨在示出设备的区域的实际形状，并且并非旨在限制示例性实施方式的范围。
在相关技术中，单个显示面板可以采用设置在面板侧面的走线，实现面板的显示面走线与设置在显示面板非显示面驱动器的连接，从而在多个显示面板拼接形成更大尺寸的显示装置时，相邻显示面板之间的间距可以更小。具体地，可以通过在显示面板的侧面形成金属层，再通过刻蚀工艺将金属层刻蚀形成侧面走线的图案，或者，利用柔性掩膜板M直接在显示面板上形成侧面走线。如图1A和图1B所示，显示面板包括位于正面的在图1B中B、R和G示例性的表示显示面板10’显示面上的像素单元膜层，正面走线101为位于显示面的所有信号线、电源线、控制线等的统称，背面走线102为位于非显示面的导电图案的统称。
发明人发现，在采用刻蚀工艺将金属层形成多条侧面走线的过程中，主要采用长焦深激光刻蚀的方式实现，而在此过程中，若正面走线和背面走线的膜层的临近侧面走线的部分区域的表面裸露，难以避免地会受到长焦深激光的照射，从而会造成显示面板的正面走线和背面走线的上述裸露区域出现损伤，在产品信赖性测试或者长期使用后，损伤位置会变为腐蚀诱发点，为水氧侵入的路径提供源头，进一步造成线路损坏。在一些实施例中，如图2所示，激光LASER的照射方向平行于y轴，与面板的显示面大致平行，而激光的移动路径L1平行于x轴；考虑显示面板10’显示面的器件较多、膜层结构较为复杂，可以在进行激光刻蚀时将显示面板旋转一定角度，例如显示面板的显示面设置为与y轴具有夹角θ，且与x轴的夹角为(90°+θ)，其中，θ不超过3°，例如可以为0.8°；使得显示面板10’的显示面上的正面走线101不会受到激光照射，可以避免对显示面的正面走线101的损伤，从而可以保证显示面的可靠性；但是，这样会造成非显示面上背面走线的损伤，如图2所示，ss位置会受到激光的照射，如果ss位置处存在背面走线图案，则会在相应位置形成损伤点。如图3所示，背面走线包括直线段和斜线段，在激光刻蚀线的延长线与斜走线相交的位置会形成损伤点ss，即直线段到斜线段的邻接位置处会受到激光的照射，从而造成刻蚀损伤，影响产品的质量。
发明人还发现，若利用柔性掩膜板M直接形成显示面板10’的侧面走线13a1的过程中，如图4所示，由于掩膜板M无法与显示面板10’完全贴合，导致掩膜板M与显示面板之间存在缝隙，在掩膜板M上方设置镀层时，镀层会通过缝隙渗透到显示面板10’的显示面、非显示面或侧面上形成导电岛mm，导电岛mm极有可能将相邻的两个侧面走线13a1连接，从而导致本应相互绝缘的区域相互导通，造成短路。示例性的，正常情况下，显示面板10’正面走线101和背面走线102厚度在500～600nm范围，当导电岛厚度达到50nm左 右时就可能会造成短路，显示面板10’上背面走线102短路情况如图5所示，在图5中，设置不同的颜色及不同形状的膜层依次连接代表背面走线102整体，其不同的形状代表不同的导电层，不同的导电层处于不同的膜层，相邻的导电层之间均设置有绝缘层，不同的导电层之间通过过孔电连接。侧面走线13a1的短路情况如图6所示。尤其是在高分辨率或小尺寸显示产品中，显示面板10’的各条侧面走线之间的间距较小，更容易引起镀层渗透引发短路问题。出现该问题后，可以采用激光照射的方式刻蚀导电岛所在位置，将短路位置实现断路，然而，该维修方式同样会存在激光误伤正常走线图案的问题。
本公开一些实施例提供一种显示面板10，示例性地，显示面板10为Micro LED显示面板或mini LED显示面板。
如图7和图9所示，显示面板10包括：背板1，多条背面走线121，多条侧面走线13a1和多个阻挡部2。
如图7所示，背板1包括显示面11、非显示面12及用于连接显示面11和非显示面12的多个侧表面13，其中一个侧表面13为选定侧表面13a。
如图8A所示，多条背面走线121间隔设置于非显示面12，每条背面走线121包括第一线段121a和第二线段121b。如图8A和图8B所示，在一些实施例中，第一线段121a与第二线段121b之间存在夹角，且二者邻接设置，多条第一线段121a在其延伸方向的长度可以不同，多个第一线段121a与相应的第二线段121b连接的端部在垂直第一线段121a的延伸方向上可以不处于同一直线上。其中，多条背面走线121的第一线段121a平行设置，多条背面走线121的第二线段121b大致平行设置，且多条背面走线121中的任意相邻两条背面走线的第二线段121b之间的间距大致相同。此外，多条背面走线121的第一线段121a靠近选定侧表面13a的端部，与选定侧表面13a具有大于0的距离D，例如距离D为20μm～100μm，例如距离D可以为70μm，或者距离D可以为80μm。
再次参见图8A，每条背面走线121的第二线段121b远离第一线段121a的一端连接有绑定端子121d，所述绑定端子121d用于与外部电路板连接，用于接收外部电路板所输出的电信号。
多条侧面走线13a1间隔设置于选定侧表面13a，每条侧面走线13a1的一端位于显示面11，另一端位于非显示面12，如图9所示，每条侧面走线13a1位于非显示面12的一端与第一线段121a电连接；侧面走线13a1用于连接显示面11和非显示面12的走线，实现显示装置的窄边框化要求。第一线段121a的延伸方向与侧面走线13a1位于非显示面12的部分的延伸方向相同，第二 线段121b的延伸方向与第一线段121a的延伸方向相交，再次参见图8B，位于非显示面12的第一线段121a和侧面走线13a1位于非显示面12的部分的延伸方向相同，实现侧面走线13a1的端部与第一线段121a的端部搭接。侧面走线13a1位于非显示面12的部分的长度L2，略大于距离D，例如长度L2可以为200μm，从而保证侧面走线13a1与对应第一线段121a的可靠连接。
如图8B和图10所示，多个阻挡部2设置于非显示面12，相邻两个第一线段121a之间设置有一个阻挡部2。相邻的两个第一线段121a间均设置有一个阻挡部2，且阻挡部2设置在第一线段121a与第二线段121b连接处的第一线段121a的端部。
在任意相邻的两个背面走线121的第一线段121a之间设置阻挡部2，且阻挡部2位于第一线段121a远离选定侧表面13a的端部，当采用激光对待形成侧面走线的金属层或者侧面走线13a1之间存在的导电岛mm进行刻蚀时，阻挡部2能够将激光LASER阻挡，阻挡部2自身可以作为激光刻蚀的牺牲层，有效的保护背面走线121免受激光LASER的刻蚀损伤，防止由于激光LASER损伤导致线路膜层进一步的腐蚀，提高了产品的质量。
在一些实施例中，再次参见8B，阻挡部2包括绝缘材料，示例性的，阻挡部2可以采用树脂，当阻挡部2采用绝缘材料时，阻挡部2可以和相邻的第一线段121a直接接触。
在一些实施例中，如图10所示，在阻挡部2采用绝缘材料的情况下，阻挡部2可以与第一线段121a不接触。
在一些实施例中，阻挡部2在非显示面12上的正投影的轮廓形状包括长方形、正方形、梯形或者三角形，对于阻挡部2在非显示面12上的正投影的轮廓形状不作具体的限定，阻挡部2可以阻挡激光即可。
在一些实施例中，在阻挡部2采用绝缘材料、阻挡部2与第一线段121a相接触的情况下，再次参见图8B，阻挡部2在非显示面12上的正投影的轮廓形状为长方形。如图11所示，阻挡部2在非显示面12上的正投影的轮廓形状为正方形，相邻两条第一线段121a之间的间距可以不同，因此，设置于相邻两条第一线段121a之间呈正方形的阻挡部2，在阻挡部2与相邻的两条第一线段121a相接触的情况下，不同的阻挡部2的边长会有差异，所以，相邻的两条第一线段121a之间与其接触的呈正方形的阻挡部2大小可以不同，例如图11中位于中间的两条第一线段121a之间的间距较小，位于其之间的呈正方形的阻挡部2较小。如图12所示，阻挡部2在非显示面12上的正投影的轮廓形状为梯形，其中，梯形的上底对于下底靠近选定侧表面13a，另外， 同样由于相邻两条第一线段121a之间的间距可以不同，因此，相邻的两条第一线段121a之间与其接触的呈梯形的阻挡部2大小可以不同。如图13所示，阻挡部2在非显示面12上的正投影的轮廓形状为三角形，其中，三角形的顶点相对于该顶点所对的对边靠近选定侧表面13a。上述内容对于阻挡部2在非显示面12上的正投影的轮廓形状示例表示，并不局限于此，阻挡部2能阻止激光即可。需要说明的是，由于不同背面走线121的第一线段121a在垂直于其延伸方向上的宽度不同，且相邻两个背面走线121的第一线段121a之间的间距不同，因此位于不同的相邻两个第一线段121a之间的阻挡部2的大小是可以不同的，但是形状为相似形。
需要说明的是，对于阻挡部2为梯形时，如图12所示，梯形的上底对于下底靠近选定侧表面13a，也可以将梯形的下底对于上底靠近选定侧表面13a，对于梯形的设置方式不做限定；同样地，如图13所示，阻挡部2在非显示面12上的正投影的轮廓形状为三角形，其中，三角形的顶点相对于该顶点所对的对边靠近选定侧表面13a，也可以将三角形的顶点相对于该顶点所对的对边远离选定侧表面13a，对此不设限，阻挡层2可以将激光阻挡即可。
在一些实施例中，在阻挡部2采用绝缘材料、阻挡部2与第一线段121a不接触的情况下，再次参见图10，阻挡部2在非显示面12上的正投影的轮廓形状为长方形；示例性地，阻挡部2在非显示面12上的正投影的轮廓形状还包括正方形、梯形或者三角形，此处不再赘述。
在一些实施例中，阻挡部2包括金属材料，示例性的，阻挡部2可以采用铜、铝、银和金中的至少一种，例如阻挡部2采用铜、或者银、或者铜铝合金等。如图14所示，在阻挡部2采用金属材料的情况下，为了避免阻挡层2与第一线段121a搭接引起背面线路121的短路，阻挡部2与相邻的第一线段121a之间具有间距；阻挡部2与相邻的第一线段121a之间的距离d1，与阻挡部2所在的相邻两个第一线段121a之间的距离dd的比值大于1:3，此处的距离dd指两个相邻的第一线段121a相对的侧表面在非显示面12上的投影之间的距离，此处的距离d1指阻挡部2和相邻的一个第一线段121a相对的两个侧表面在非显示面12上的投影之间的距离。再次参见图14，当相邻两个第一线段121a之间的距离dd为60μm时，阻挡部2与第一线段121a之间的距离d1可以设置为25μm。将阻挡部2与相邻的第一线段121a之间距离d1，与阻挡部2所在的相邻两个第一线段121a之间的距离dd的比值大于1:3的设置，既可以满足避免阻挡层2引起的第一线段121a的连接导致短路，又可以起到阻挡激光LASER刻蚀背面线路121的作用。
在一些实施例中，在阻挡部2采用金属材料的情况下，阻挡部2在非显示面12上的正投影的轮廓形状包括长方形、正方形、梯形或者三角形。
在一些实施例中，再次参见图14，在阻挡部2采用金属材料的情况下，阻挡部2在非显示面12上的正投影的轮廓形状为长方形；如图15所示，阻挡部2在非显示面12上的正投影的轮廓形状为正方形；如图16所示，阻挡部2在非显示面12上的正投影的轮廓形状为梯形，其中，梯形的上底对于下底靠近选定侧表面13a；如图17所示，阻挡部2在非显示面12上的正投影的轮廓形状为三角形，其中，三角形的顶点相对于该顶点所对的对边靠近选定侧表面13a。上述内容对于阻挡部2在非显示面12上的正投影的轮廓形状示例表示，并不局限于此，阻挡部2能阻止激光即可。此时，阻挡部2与相邻的第一线段121a之间的间距d1指阻挡部2和相邻的第一线段121a相对的两个表面之间最短的距离。需要说明的是，由于不同背面走线121的第一线段121a在垂直于其延伸方向上的宽度不同，且相邻两个背面走线121的第一线段121a之间的间距不同，因此位于不同的相邻两个第一线段121a之间的阻挡部2的大小是可以不同的，但是形状为相似形。
在一些实施例中，如图18A和图18B所示，阻挡部2远离非显示面12的表面bm1与非显示面12的距离d2，大于第一线段121a远离非显示面12的表面bm2与非显示面12的距离d3。
在一些实施例中，在阻挡部2采用绝缘材料、阻挡部2与第一线段121a相接触的情况下，如图18A所示，阻挡部2远离非显示面12的表面bm1与非显示面12的距离d2，比第一线段121a远离非显示面12的表面bm2非显示面12的距离d3大0.4μm～0.6μm，例如距离d2比距离d3大0.5μm，或者d2比d3大0.6μm，或者d2比d3大0.4μm，本公开对此并不设限。
在一些实施例中，在阻挡部2采用金属材料的情况下，如图18B所示，阻挡部2远离非显示面12的表面bm1与非显示面12的距离d2，比第一线段121a远离非显示面12的表面bm2非显示面12的距离d3大0.4μm～0.6μm，例如距离d2比距离d3大0.5μm，或者距离d2比距离d3大0.6μm，或者距离d2比距离d3大0.4μm，本公开对此并不设限。
将阻挡部2远离非显示面12的表面bm1与非显示面12的距离d2，比第一线段121a远离非显示面12的表面bm2非显示面12的距离d3大0.4μm～0.6μm的设置，在采用激光刻蚀工艺将金属层形成侧面走线13a1的整个过程中，或者，采用激光对侧面走线13a1之间的导电岛mm进行刻蚀修复时，阻挡部2可以对背面走线121进行充分的保护，避免背面走线121受到 激光的刻蚀损伤。
在一些实施例中，如图19A和19B所示，显示面板10还包括设置于非显示面12的多个隔离部3，第一线段121a靠近选定侧表面13a的端部用于与侧面走线13a1位于非显示面12的端部13aa相搭接，称第一线段121a靠近选定侧表面13a的端部为连接部121c，可以理解的是，连接部121c为第一线段121a的一部分，每个第一线段121a通过连接部121c与侧面走线13a1位于非显示面12的端部13aa电连接，可以理解的是，相连接的连接部121c与侧面走线13a1的端部13aa在显示面板10非显示面12上的投影重合或者部分重合。相邻的两个连接部121c之间设置有一个隔离部3。例如相邻的两个连接部121c之间均设置有一个隔离部3，隔离部3包括绝缘材料，隔离部3与相邻的连接部121c之间具有间距d4。示例性地，隔离部3与相邻的连接部121c之间的距离，与阻挡部2所在的相邻两个连接部3之间的距离的比值大于1:3。
再次参见图19B，每个第一线段121a通过连接部121c与侧面走线13a1位于非显示面12的端部13aa电连接，相邻的两个连接部121c之间设置有一个隔离部3，隔离部3采用绝缘材料，且隔离部3与相邻的连接部121c之间具有间距，隔离部3与相邻的连接部121c之间的距离d4，指隔离部3与相邻的连接部121c相对的侧表面在非显示面12上的投影之间的最短距离；相邻两个连接部121c之间的距离标记为dd’，在一些实施中，相邻两个连接部121c之间的距离dd’和相邻两个第一线段121a之间的距离dd相等。
在相邻的第一线段121a连接部121c之间设置由绝缘材料构成的隔离部3，当利用掩膜板M形成侧面走线13a1的图案时，由于隔离部3的存在，并且隔离部3与相邻的连接部121c之间存在设定距离，渗透的膜层会被隔离部3阻断，防止隔离部3两侧的渗透膜层连接，有效的阻挡渗透膜层导致的第一线段121a短路的问题，提高显示面板的良率，进一步能够省去后期采用激光对显示面板10背面走线121进行刻蚀修复的步骤，仅需要对显示面板10侧面走线13a1之间的导电岛mm进行激光修复即可。隔离部3配合上述第一线段121a之间设置的阻挡部2，既能避免激光刻蚀修复损伤显示面板10背面走线121，又可以阻挡喷镀镀层渗透导致的第一线段121a连接部121c的短路，可以提高显示面板10的产品质量。
在一些实施例中，再次参见图19B，当相邻两个连接部121c之间的距离dd’为65μm时，隔离部3与相邻的连接部121c之间的距离d4可以设置为25μm。将隔离部3与相邻的连接部121c之间的距离，与阻挡部2所在的相邻两个连接部3之间的距离的比值大于1:3的设置，可以有效的避免喷镀镀层渗 透导致的第一线段121a连接部121c短路的问题出现。
在一些实施例中，隔离部3的一端延伸至非显示面12和选定侧表面13a的交线处，再次参见图19B，隔离部3的延伸方向和第一线段121a的延伸方向相同，隔离部3的一端延伸至非显示面12和选定侧表面13a的交线处，隔离部3将第一线段121a连接部121c和侧面走线13a1在非显示面12的延伸部分进行保护，使得显示面板10的非显示面12不会出现由于镀层渗透引起的线路短路问题。
在一些实施例中，如图19B和图20所示，位于相邻两个第一线段121a之间的阻挡部2和隔离部3相连接。
在一些实施例中，在阻挡部2采用绝缘材料的情况下，相连接的阻挡部和隔离部为一体结构。阻挡部2和隔离部3可以采用相同的材料，示例性地，采用相同的树脂材料，相连接的阻挡部2和隔离部3可以采用一次光刻工艺形成一体成型的结构。
在一些实施例中，在阻挡部2采用绝缘材料的情况下，阻挡部2与其相邻的第一线段121a可以相接触，阻挡部2在非显示面12上的正投影的轮廓形状可以采用不同的形状，示例性地，可以是长方形、正方形、梯形或者三角形，此处不再赘述。如图20所示，位于相邻两个第一线段121a之间的阻挡部2和隔离部3相连接，阻挡部2与其相邻的第一线段121a相接触，阻挡部2在非显示面12上的正投影的轮廓形状采用长方形。
在一些实施例中，再次参见图20，阻挡部2在第一方向的宽度k1大于隔离部3在第一方向的宽度k2，第一方向与第一线段121a的延伸方向垂直，阻挡部2在第一方向的宽度k1为阻挡部2在非显示面12上的投影在第一方向上的尺寸，隔离部3在第一方向的宽度k2为隔离部3在非显示面12上的投影在第一方向上的尺寸，示例性地，阻挡部2和隔离部3可以一体成型为T形结构，在阻挡部2采用绝缘材料且与其相邻的第一线段121a相接触时，阻挡部2在第一方向的宽度k1与其相邻两个第一线段121a之间的距离dd可以相等。
在又一些实施例中，在阻挡部2采用绝缘材料的情况下，阻挡部2与其相邻的第一线段121a可以不接触，阻挡部2在非显示面12上的正投影的轮廓形状可以采用不同的形状，示例性地，可以是长方形、正方形、梯形或者三角形，具体内容如上所述，此处不再赘述。如图21所示，阻挡部2采用绝缘材料，位于相邻两个第一线段121a之间的阻挡部2和隔离部3相连接，阻挡部2与其相邻的第一线段121a不接触，阻挡部2在非显示面12上的正投 影的轮廓形状采用长方形。阻挡部2在第一方向的宽度k1与隔离部2在第一方向的宽度k2大小不作具体的限定，此处，第一方向与第一线段121a的延伸方向垂直。
在另一些实施例中，位于相邻两个第一线段121a之间的阻挡部2和隔离部3相连接，在阻挡部2采用金属材料的情况下，阻挡部2与其相邻的第一线段121a不接触，相连接的阻挡部2和隔离部3需要采用两次光刻工艺分别进行制作，阻挡部2在非显示面12上的正投影的轮廓形状包括长方形、正方形、梯形或者三角形，具体内容如上所述，此处不再赘述。如图22所示，阻挡部2与其相邻的第一线段121a不接触，位于相邻两个第一线段121a之间的阻挡部2和隔离部3相连接，阻挡部2在非显示面12上的正投影的轮廓形状采用梯形，其中，梯形的上底对于下底靠近选定侧表面13a。阻挡部2在第一方向的宽度k1与隔离部2在第一方向的宽度k2大小不作具体的限定，此处，第一方向与第一线段121a的延伸方向垂直。
在一些实施例中，如图23和图24所示，位于相邻两个第一线段121a之间的阻挡部2和隔离部3不接触。
在一些实施例中，在阻挡部2采用绝缘材料的情况下，阻挡部2与其相邻的第一线段121a可以相接触，位于相邻两个第一线段121a之间的阻挡部2和隔离部3不接触，阻挡部2在非显示面12上的正投影的轮廓形状可以采用不同的形状，示例性地，可以是长方形、正方形、梯形或者三角形，此处不再赘述。如图23所示，阻挡部2在非显示面12上的正投影的轮廓形状采用三角形，其中，三角形的顶点相对于该顶点所对的对边靠近选定侧表面13a，阻挡部2与其相邻的第一线段121a相接触，位于相邻两个第一线段121a之间的阻挡部2和隔离部3不接触。
在又一些实施例中，在阻挡部2采用绝缘材料的情况下，阻挡部2与其相邻的第一线段121a可以不接触，位于相邻两个第一线段121a之间的阻挡部2和隔离部3不接触，阻挡部2在非显示面12上的正投影的轮廓形状可以采用不同的形状，示例性地，可以是长方形、正方形、梯形或者三角形，此处不再赘述。如图24所示，阻挡部2与其相邻的第一线段121a不接触，位于相邻两个第一线段121a之间的阻挡部2和隔离部3不接触，阻挡部2在非显示面12上的正投影的轮廓形状采用三角形。
在另一些实施例中，在阻挡部2采用金属材料的情况下，阻挡部2与其相邻的第一线段121a不接触，位于相邻两个第一线段121a之间的阻挡部2和隔离部3不接触，阻挡部2在非显示面12上的正投影的轮廓形状可以采用 不同的形状，示例性地，可以是长方形、正方形、梯形或者三角形，此处不再赘述。如图25所示，阻挡部2与其相邻的第一线段121a不接触，位于相邻两个第一线段121a之间的阻挡部2和隔离部3不接触，阻挡部2在非显示面12上的正投影的轮廓形状采用三角形。
在一些实施例中，如图26和图27所示，隔离部3远离非显示面12的表面bm3与非显示面12的距离d5，大于或等于连接部121c远离非显示面12的表面bm4与非显示面12的距离d6。
当利用掩膜板M形成侧面走线13a1的图案时，由于隔离部3远离非显示面12的表面bm3与非显示面12的距离d5，大于或等于连接部121c远离非显示面12的表面bm4与非显示面12的距离d6，使得掩膜板M和隔离部3紧密贴合，可以有效的阻挡镀层渗透，进一步提高隔离部3的阻断作用，提高显示面板的良率。
在一些示例中，如图26所示，隔离部3远离非显示面12的表面bm3与非显示面12的距离d5，等于连接部121c远离非显示面12的表面bm4与非显示面12的距离d6。
在一些示例中，如图27所示，隔离部3远离非显示面12的表面bm3与非显示面12的距离d5，大于连接部121c远离非显示面12的表面bm4与非显示面12的距离d6。在一些实施例中，连接部121c远离非显示面12的表面bm4，与第一线段121a远离非显示面12的表面bm2可以为同一表面。
在一些实施中，如图28所示，显示面板10包括设置于显示面的多个发光器件1002，例如发光器件为Micro LED芯片或mini LED芯片。
显示面板10还包括第一防护层1003和第二防护层1004，第一防护层1003覆盖多条侧面走线13a1，第一防护层1003设置在多条侧面走线13a1远离背板1一侧，示例性地，第一防护层1003可以填充多条侧面走线13a1的间隙区域以及覆盖多条侧面走线13a1的表面。第一防护层1003起到电气绝缘、以及防水氧腐蚀的作用，避免多条侧面走线13a1受到外界损伤，出现剥落、断线、氧化等问题，延长显示面板10的使用寿命，从显示面板10的截面图来看，多条侧面走线13a1形状呈U型，则第一防护层1003也呈U型。
第二防护层1004设置在第一防护层1003远离侧面走线13a1的一侧，第二防护层1004覆盖显示面板10的显示面11的各膜层、第一防护层1003以及背面走线121等。第二防护层1004可以进一步保护多条侧面走线，以及对显示面11的走线、背面走线121形成保护。
在一些实施例中，第二防护层1004位于显示面11的部分可以为黑胶层， 例如黑胶层的材料为黑色硅胶或者黑色树脂。在一些实例中，黑胶层覆盖多个发光器件的部分相较其他部分较薄，在对显示面的各膜层进行防护的同时，不影响发光器件的出光效果。
为了防止采用激光刻蚀工艺将金属层形成多条侧面走线、以及利用激光LASER修复显示面板10侧面走线13a1时，激光LASER对显示面板10背面走线121的刻蚀损伤，可替代的方案为：
如图30所示，本公开的一些实施例还提供了一种显示面板，包括：背板1，多条背面走线121和多条侧面走线13a1，背板1、多条背面走线121和多条侧面走线13a1的具体结构如上所述，此处不再赘述，其中，多条背面走线121的第一线段121a与第二线段121b相接位置远离激光刻蚀多条侧面走线13a1时激光焦深涉及范围。
将显示面板10非显示面12的第一线段121a延长，使在第一线段121a与第二线段121b相接位置远离激光焦深涉及范围，可以有效的避免激光蚀刻形成侧面走线13a1时对背面走线造成损伤。
在一些实施例中，如图29和图30所示，激光LASER的照射方向平行于Y，而激光的移动路径L1平行于X轴，在进行激光刻蚀时将显示面板10旋转一定角度，例如显示面板10的显示面11设置为与Y轴具有夹角β，且与X轴的夹角为(90°+β)，其中，β不超过3°，例如可以为1°，使得显示面板10的显示面11上的膜层不会受到激光照射，可以避免对显示面11的膜层的损伤，从而可以保证显示面11的可靠性。将显示面板10背面走线121的第一线段121a延长，使得第一线段121a与第二线段121b的相接位置远离激光刻蚀多条侧面走线13a1时激光焦深涉及范围，即第一线段121a与第二线段121b的相接位置远离激光LASER在显示面板10非显示面12所能照射到的边界线LL，使得第二线段121b不会被激光照射并损伤，这样可以实现同时保护显示面板10的显示面11上的膜层和非显示面上的膜层免受激光损伤。
再次参见图29和图30，激光LASER在显示面板10非显示面12所能照射到的边界LL是指激光LASER所能照射的距离非显示面12与选定侧表面13a的交线最远的边界，此边界LL所在的位置与角度β及激光LASER在其移动方向X上的尺寸范围L1有关，示例性地，激光LASER移动方向X与其出光方向Y垂直。
其中，激光LASER在移动方向X上的移动尺寸范围L1的确定与侧面走线13a1位于非显示面12的长度L2有关。
因此，通过侧面走线13a1位于非显示面12的长度L2，确定激光LASER 在移动方向X上的移动尺寸范围L1，通过激光LASER在移动方向X上的移动尺寸范围L1和角度β，确定激光LASER在显示面板10非显示面12所能照射到的边界线LL，边界线LL靠近非显示面12与选定侧表面13a交线的区域为激光焦深涉及范围，边界线LL远离非显示面12与选定侧表面13a交线的区域为激光焦深不能涉及范围，将第一线段121a与第二线段121b的相接位置配置在激光焦深不能涉及范围，即边界线LL远离非显示面12与选定侧表面13a交线的区域，可以避免激光LASER刻蚀侧面走线13a1或者修复侧面走线13a1时对背面走线121的损伤。
在一些实施例中，对于如图19B所示的设置阻挡部2以避免激光损伤的方案，阻挡部2的设置位置与激光焦深涉及范围有关，在一些实例中，阻挡部2可设置于激光焦深涉及范围之内，以对背面走线121提供进一步防护。
另一方面提供一种显示装置100，如图31所示，显示装置100包括上述的显示面板10，还包括驱动电路1001，驱动电路1001与背面走线121电连接。
在一些实施例中，驱动电路1001通过柔性线路板与背面走线121电连接。
本公开所提供的显示装置100的有益效果与本公开第一方面所提供的显示面板10所述的实施例的有益效果相同，此处不再赘述。
又一方面，提供一种拼接显示装置1000，如图32所示，包括多个上述的显示装置100，多个显示装置100拼接组装形成拼接显示装置1000。
本公开所提供的拼接显示装置1000的有益效果与本公开第一方面所提供的显示面板10所述的实施例的有益效果相同，此处不再赘述。
以上所述，仅为本公开的具体实施方式，但本公开的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本公开揭露的技术范围内，想到变化或替换，都应涵盖在本公开的保护范围之内。因此，本公开的保护范围应以所述权利要求的保护范围为准。

Claims (20)

  1. 一种显示面板，包括：
    背板，所述背板包括显示面、非显示面及用于连接所述显示面和非显示面的多个侧表面，其中一个侧表面为选定侧表面；
    多条背面走线，间隔设置于所述非显示面，每条背面走线包括第一线段和第二线段；
    多条侧面走线，间隔设置于所述选定侧表面，每条侧面走线的一端位于所述显示面，另一端位于所述非显示面；每条侧面走线与所述第一线段电连接；所述第一线段的延伸方向与所述侧面走线位于所述非显示面的端部的延伸方向相同，所述第二线段的延伸方向与所述第一线段的延伸方向相交；
    多个阻挡部，设置于所述非显示面，相邻两个第一线段之间设置有一个阻挡部。
  2. 根据权利要求1所述的显示面板，其中，所述阻挡部的材料包括绝缘材料。
  3. 根据权利要求2所述的显示面板，其中，所述阻挡部的材料包括树脂。
  4. 根据权利要求1～3中任一项所述的显示面板，其中，所述阻挡部与相邻的第一线段相接触。
  5. 根据权利要求1所述的显示面板，其中，所述阻挡部的材料包括金属材料，所述阻挡部与相邻的第一线段之间具有间距。
  6. 根据权利要求5所述的显示面板，其中，所述阻挡部与相邻的第一线段之间的距离，与所述阻挡部所在的相邻两个第一线段之间的距离的比值大于1:3。
  7. 根据权利要求5或6所述的显示面板，其中，所述阻挡部的材料包括铜、铝、银和金中的至少一种。
  8. 根据权利要求1～7任一项所述的显示面板，其中，所述阻挡部远离所述非显示面的表面与所述非显示面之间的距离，大于所述第一线段远离所述非显示面的表面与所述非显示面之间的距离。
  9. 根据权利要求8所述的显示面板，其中，所述阻挡部远离所述非显示面的表面与所述非显示面之间的距离，比所述第一线段远离所述非显示面的表面与所述非显示面之间的距离大0.4μm～0.6μm。
  10. 根据权利要求1～9任一项所述的显示面板，其中，所述阻挡部在所述非显示面上的正投影的轮廓形状包括长方形、正方形、梯形或者三角形。
  11. 根据权利要求1～10中任一项所述的显示面板，还包括：多个隔离部，设置于所述非显示面；
    其中，每个第一线段通过连接部与所述侧面走线位于所述非显示面的端部电连接，相邻两个连接部之间设置有一个隔离部，所述隔离部包括绝缘材料，所述隔离部与相邻的连接部之间具有间距。
  12. 根据权利要求11所述的显示面板，其中，所述隔离部与相邻的连接部之间的间距，与所述阻挡部所在的相邻两个连接部之间的距离的比值大于1:3。
  13. 根据权利要求11或12所述的显示面板，其中，所述隔离部延伸至所述非显示面与所述选定侧表面的交线。
  14. 根据权利要求11～13中任一项所述的显示面板，其中，所述隔离部远离所述非显示面的表面与所述非显示面的距离，大于或等于所述第一线段远离所述非显示面的表面与所述非显示面的距离。
  15. 根据权利要求14所述的显示面板，其中，位于相邻两个第一线段之间的阻挡部和隔离部相连接。
  16. 根据权利要求15所述的显示面板，其中，在所述阻挡部采用绝缘材料的情况下，相连接的阻挡部和隔离部为一体结构。
  17. 根据权利要求16所述的显示面板，其中，所述阻挡部在第一方向的宽度大于所述隔离部在第一方向的宽度，所述第一方向与所述第一线段的延伸方向垂直。
  18. 根据权利要求11～14中任一项所述的显示面板，其中，位于相邻两个第一线段之间的阻挡部和隔离部不接触。
  19. 一种显示装置，包括：如权利要求1～18中任一项所述的显示面板。
  20. 一种拼接显示装置，包括：多个如权利要求19所述的显示装置，多个所述显示装置拼接组装。
PCT/CN2021/125921 2021-10-22 2021-10-22 显示面板、显示装置及拼接显示装置 WO2023065369A1 (zh)

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN206282855U (zh) * 2016-12-29 2017-06-27 上海天马微电子有限公司 一种显示面板及显示设备
CN110211973A (zh) * 2019-06-12 2019-09-06 京东方科技集团股份有限公司 一种显示面板及制作方法
US20190326326A1 (en) * 2018-04-19 2019-10-24 Samsung Display Co., Ltd. Display apparatus and method of manufacturing the same
CN110428739A (zh) * 2019-07-31 2019-11-08 云谷（固安）科技有限公司 显示面板和显示装置
CN212256800U (zh) * 2020-09-24 2020-12-29 京东方科技集团股份有限公司 显示面板、显示装置及拼接显示装置
CN212810308U (zh) * 2020-10-29 2021-03-26 京东方科技集团股份有限公司 一种显示器件及显示装置
CN113437025A (zh) * 2021-06-10 2021-09-24 深圳市华星光电半导体显示技术有限公司 阵列基板侧面走线制造方法及拼接显示面板
TW202137597A (zh) * 2020-03-27 2021-10-01 南韓商太特思股份有限公司 Ｌｅｄ顯示模組及其顯示器

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109801950B (zh) * 2019-01-31 2021-02-26 厦门天马微电子有限公司 显示面板、显示装置及显示面板的制作方法

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN206282855U (zh) * 2016-12-29 2017-06-27 上海天马微电子有限公司 一种显示面板及显示设备
US20190326326A1 (en) * 2018-04-19 2019-10-24 Samsung Display Co., Ltd. Display apparatus and method of manufacturing the same
CN110211973A (zh) * 2019-06-12 2019-09-06 京东方科技集团股份有限公司 一种显示面板及制作方法
CN110428739A (zh) * 2019-07-31 2019-11-08 云谷（固安）科技有限公司 显示面板和显示装置
TW202137597A (zh) * 2020-03-27 2021-10-01 南韓商太特思股份有限公司 Ｌｅｄ顯示模組及其顯示器
CN212256800U (zh) * 2020-09-24 2020-12-29 京东方科技集团股份有限公司 显示面板、显示装置及拼接显示装置
CN212810308U (zh) * 2020-10-29 2021-03-26 京东方科技集团股份有限公司 一种显示器件及显示装置
CN113437025A (zh) * 2021-06-10 2021-09-24 深圳市华星光电半导体显示技术有限公司 阵列基板侧面走线制造方法及拼接显示面板

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