WO2021136487A1 - 显示模组、显示面板的减薄方法、显示面板及显示装置 - Google Patents

显示模组、显示面板的减薄方法、显示面板及显示装置 Download PDF

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Publication number
WO2021136487A1
WO2021136487A1 PCT/CN2020/142034 CN2020142034W WO2021136487A1 WO 2021136487 A1 WO2021136487 A1 WO 2021136487A1 CN 2020142034 W CN2020142034 W CN 2020142034W WO 2021136487 A1 WO2021136487 A1 WO 2021136487A1
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WIPO (PCT)
Prior art keywords
acid
resistant film
protected
area
thinned
Prior art date
Application number
PCT/CN2020/142034
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English (en)
French (fr)
Inventor
彭利满
吴岩
张倩倩
薛智勇
唐亮
张国苹
陈强
Original Assignee
京东方科技集团股份有限公司
鄂尔多斯市源盛光电有限责任公司
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Application filed by 京东方科技集团股份有限公司, 鄂尔多斯市源盛光电有限责任公司 filed Critical 京东方科技集团股份有限公司
Priority to US17/418,137 priority Critical patent/US12016235B2/en
Publication of WO2021136487A1 publication Critical patent/WO2021136487A1/zh

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    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/40—OLEDs integrated with touch screens
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/80—Constructional details
    • H10K50/84—Passivation; Containers; Encapsulations
    • H10K50/844—Encapsulations
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/80—Constructional details
    • H10K59/87—Passivation; Containers; Encapsulations
    • H10K59/871—Self-supporting sealing arrangements
    • H10K59/8722—Peripheral sealing arrangements, e.g. adhesives, sealants
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
    • H10K71/40—Thermal treatment, e.g. annealing in the presence of a solvent vapour

Definitions

  • the present disclosure relates to the field of display technology, and in particular to a display module, a thinning method of a display panel, a display panel and a display device.
  • OLED Organic Light-Emitting Diode
  • An embodiment of the present disclosure provides the display module, and the display module includes:
  • the display panel includes a substrate to be thinned and a touch substrate disposed oppositely.
  • the surface of the touch substrate facing away from the substrate to be thinned is the surface to be protected.
  • the direction in which the substrate points to the touch substrate is divided into an area to be thinned and a non-thinned area;
  • the first acid-resistant film is located on the surface of the protective film facing away from the surface to be protected, the orthographic projection of the first acid-resistant film on the surface to be protected falls into the surface to be protected, and The orthographic projection of the protective film on the first acid-resistant film falls into the first acid-resistant film;
  • the second acid-resistant film is located on the surface of the first acid-resistant film facing away from the surface to be protected, and the orthographic projection of the second acid-resistant film on the surface to be protected falls into the surface to be protected, The orthographic projection of the first acid-resistant film on the second acid-resistant film falls into the second acid-resistant film;
  • the frame sealant covers the area of the surface to be protected that is not covered by the protective film, the side surface of the touch substrate, and the side surface of the non-thinning area.
  • the orthographic projection of the protective film on the first acid-resistant film falls into the first acid-resistant film and is smaller than the first acid-resistant film;
  • the orthographic projection of the first acid-resistant film on the second acid-resistant film falls into the second acid-resistant film and is smaller than the second acid-resistant film.
  • the frame sealant completely covers the side surface of the protective film and the side surface of the first acid-resistant film;
  • the area of the first acid-resistant film not covered by the protective film and the surface to be protected is filled with the frame sealant; and the second acid-resistant film is not covered by the first acid-resistant film
  • the frame sealing glue is filled between the area and the surface to be protected.
  • the thickness of the frame sealant is greater than the thickness of the touch substrate, and the total thickness of the area of the display module not covered by the frame sealant It is greater than or equal to the thickness of the region to be thinned.
  • the surface to be protected has a first side parallel to the first direction and a second side parallel to the second direction;
  • the distance from the edge of the protective film to the closest first side is approximately: 17 mm ⁇ 27 mm, and the distance from the edge of the protective film to the closest second edge is approximately: 14 mm ⁇ 24 mm;
  • first direction and the second direction cross each other.
  • the distance from the edge of the first acid-resistant film to the closest first side is about: 2 mm to 18 mm, and the edge of the first acid-resistant film is to the nearest second edge.
  • the distance between the sides is approximately: 2 mm to 20 mm.
  • the distance from the edge of the second acid-resistant film to the closest first side is approximately less than or equal to 0.5 mm, and the edge of the second acid-resistant film to the closest second side The distance is about less than or about 0.5 mm.
  • the orthographic projection of the second acid-resistant film on the surface to be protected coincides with the surface to be protected.
  • the protective film is glass spacer paper; the materials of the first acid-resistant film and the second acid-resistant film include polyethylene terephthalate.
  • An embodiment of the present disclosure provides a method for thinning a display panel, the method includes:
  • a protective film is attached to the to-be-protected surface of the display panel; wherein the display panel includes: a substrate to be thinned and a touch substrate that are arranged oppositely; the to-be-protected surface is that the touch substrate faces away from the to-be-reduced
  • the surface of a thin substrate, the substrate to be thinned is divided into a region to be thinned and a non-thinning region along the direction from the substrate to be thinned to the touch substrate, and the protective film covers a portion of the surface to be protected ;
  • a first acid-resistant film is attached to the side of the protective film away from the surface to be protected; wherein the orthographic projection of the first acid-resistant film on the surface to be protected falls into the surface to be protected, and The orthographic projection of the protective film on the first acid-resistant film falls into the first acid-resistant film;
  • a second acid-resistant film is attached to the side of the first acid-resistant film away from the protective film, wherein the orthographic projection of the second acid-resistant film on the surface to be protected falls into the surface to be protected, The orthographic projection of the first acid-resistant film on the second acid-resistant film falls into the second acid-resistant film;
  • the area where the surface to be protected is not covered by the protective film, the side surface of the touch substrate and the side surface of the non-thinning area are coated with a frame sealant, and the frame sealant is cured.
  • coating a frame sealant on the area of the surface to be protected that is not covered by the protective film specifically includes:
  • a frame sealant is applied to an area of the surface to be protected that is not covered by the protective film, so that the frame sealant completely covers the side surface of the protective film and the side surface of the first acid-resistant film.
  • coating the frame sealant on the side surface of the touch substrate and the side surface of the non-thinning area specifically includes:
  • the method further includes:
  • the display panel is placed in an isolation frame, wherein the isolation frame has a spacer, and the spacer supports the display panel on the side of the second acid-resistant film away from the area to be thinned, and The spacer and the area to be thinned are not in contact with each other;
  • the isolation frame is placed in a thinning pool containing a thinning liquid to corrode the area to be thinned.
  • the placing the display panel in the isolation frame specifically includes:
  • a plurality of the display panels are placed in the same isolation frame, wherein the adjacent display panels are separated by the spacers.
  • the method further includes:
  • the second acid-resistant film, the first acid-resistant film, the protective film and the frame sealant are removed.
  • the embodiment of the present disclosure also provides a display panel, which is a display panel after the area to be thinned is thinned by the display panel thinning method provided by the embodiment of the present disclosure.
  • the embodiment of the present disclosure also provides a display device, and the display device includes the display panel provided by the embodiment of the present disclosure.
  • FIG. 1 is a schematic structural diagram of a display module provided by an embodiment of the disclosure
  • FIG. 2 is a schematic structural diagram of another display module provided by an embodiment of the disclosure.
  • FIG. 3 is a schematic structural diagram of yet another display module provided by an embodiment of the disclosure.
  • FIG. 4 is a schematic diagram of orthographic projection of a protective film on a surface to be protected in a display module provided by an embodiment of the disclosure
  • FIG. 5 is a schematic diagram of orthographic projection of a first acid-resistant film on a surface to be protected in a display module provided by an embodiment of the disclosure
  • 6a is a schematic diagram of orthographic projection of a second acid-resistant film on a surface to be protected in a display module provided by an embodiment of the present disclosure
  • 6b is a schematic diagram of the orthographic projection of the frame sealant on the surface to be protected in a display module provided by an embodiment of the present disclosure
  • FIG. 7 is a schematic flowchart of a method for thinning a display panel according to an embodiment of the present disclosure
  • FIG. 8 is a schematic structural diagram of a display panel fixed by an isolation frame according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic structural diagram of another isolation frame fixing a display panel provided by an embodiment of the present disclosure.
  • the process of thinning the OLED glass substrate is mainly to peel off and thin the glass through acid soaking.
  • the side that does not need to be thinned needs to be coated with an acid-resistant film.
  • an acid-resistant film needs to be attached to the surface of the TSP.
  • acid seepage will still occur during the thinning process, resulting in poor TSP corrosion, resulting in poor electrical touch of the product, and affecting the production yield of the product.
  • the display module includes: a display panel 1, a protective film 4 on the to-be-protected surface 9 of the display panel 1, and a protective film 4 on the protective film 4
  • the display panel 1 includes: a substrate to be thinned 2 and a touch substrate 3 arranged oppositely; the surface to be protected 9 is the surface of the touch substrate 3 facing away from the substrate to be thinned 2, and the substrate to be thinned 2 is divided into a region to be thinned 12 and a non-thinning region 8 along the direction from the substrate to be thinned 2 to the touch substrate 3.
  • the protective film 4 at least partially covers the surface 9 to be protected.
  • the orthographic projection of the first anti-acid film 5 on the surface 9 to be protected falls into the surface 9 to be protected.
  • the orthographic projection of the first acid-resistant film 5 on the surface to be protected 9 falls into the surface to be protected 9
  • the orthographic projection of the protective film 4 on the first acid-resistant film 5 falls into Inside the first anti-acid film 5.
  • the orthographic projection of the second acid-resistant film 6 on the surface 9 to be protected falls into the surface 9 to be protected.
  • the orthographic projection of the second acid-resistant film 6 on the surface to be protected 9 falls into the surface to be protected 9, and the first acid-resistant film 5 is on the front surface of the second acid-resistant film 6. The projection falls into the second acid-resistant film 6.
  • the sealant 7 covers at least the area of the surface to be protected 9 that is not covered by the protective film 4. In some embodiments, the frame sealant 7 covers the area of the surface to be protected 9 not covered by the protective film 4, the side surface of the touch substrate 3 and the side surface of the non-thinning area 8.
  • the orthographic projection of the protective film 4 on the first acid-resistant film 5 falls into the first acid-resistant film 5 and is generally smaller than the first acid-resistant film 5;
  • the orthographic projection of the acid-resistant film 6 falls into the second acid-resistant film 6 and is smaller than the second acid-resistant film 6.
  • a first acid-resistant film and a second acid-resistant film are sequentially attached to the surface to be protected of the display panel, and the area of the first acid-resistant film is smaller than the area of the surface to be protected, and the second The area of the acid-resistant film is larger than the area of the first acid-resistant film, which can at least avoid the problem of acid penetration in the subsequent thinning process of the display module that causes the surface to be protected to be corroded.
  • a protective film, a first acid-resistant film, and a second acid-resistant film are sequentially attached to the surface to be protected of the display panel.
  • the protective film can prevent the first acid-resistant film from being treated during the attaching process.
  • the protective surface causes pollution.
  • the frame sealant covers the area to be protected that is not covered by the protective film, the sides of the touch substrate, and the side of the non-thinning area, which can significantly improve the protective effect of the frame sealant and further avoid the thinning process of the display module There is a problem of acid seepage leading to corrosion of the surface to be protected.
  • the frame sealant at least partially covers the side surface of the protective film 4.
  • the sealant 7 may only completely cover the side surface of the protective film 4.
  • the frame sealant can completely cover the side surface of the protective film 4 and the side surface of the first acid-resistant film 5;
  • the glue 7 is filled between the area of the first acid-resistant film 5 that is not covered by the protective film 4 and the surface to be protected 9; and the sealant 7 is filled in the area of the second acid-resistant film 6 that is not covered by the first acid-resistant film 5 Between the surface 9 to be protected.
  • the area of the first acid-resistant film is larger than the area of the second acid-resistant film to prevent acid seepage.
  • the area of the first acid-resistant film is smaller than the surface to be protected and the second acid-resistant film
  • the area of ?? is prone to acid oozing, but the inventor of the present disclosure found that when the area of the first antacid film is smaller than the area of the surface to be protected and the area of the second antacid film, the acid oozing phenomenon will not occur at all in the thinning process.
  • the dimensions of the first acid-resistant film and the second acid-resistant film design methods other than the solutions provided in the present disclosure will have different degrees of acid oozing, which affects the production yield of the display panel.
  • the first acid-resistant film since the area of the first acid-resistant film is smaller than the area of the surface to be protected, and the area of the second acid-resistant film is larger than that of the first acid-resistant film, the first acid-resistant film A groove is formed around the surface to be protected.
  • the sealant can be filled in the groove, which can significantly improve the protective effect of the sealant and prevent acid drilling, so there will be no seepage in the thinning process. Acid phenomenon.
  • the sealant 7 may also cover the side surface of the second acid-resistant film 6.
  • the frame sealant 7 is provided with the sealant 7 on the side of the display module and the grooves formed between the protective film 4, the first acid-resistant film 5, the second acid-resistant film 6 and the surface 9 to be protected.
  • the sealing effect of the encapsulant 7 on the display module can be further improved.
  • the thickness of the sealant 7 may be greater than the thickness of the touch substrate 3.
  • the total thickness of the area of the display module not covered by the frame sealant 7 is greater than or equal to the thickness of the area to be thinned 12, it is ensured that the area to be thinned 12 can be completely exposed In order to be etched by acid.
  • the surface to be protected 9 has a first side 13 parallel to the first direction X and a first side 13 parallel to the second direction Y. Two sides 14, wherein the first direction X and the second direction Y cross each other.
  • the surface to be protected 9 is rectangular, the first direction X and the second direction Y are perpendicular to each other, the first side 13 is the long side of the rectangle, and the second side 14 is the short side of the rectangle.
  • the distance between the edge of the protective film 4 and the closest first side 13 is b1, and the distance between the edge of the protective film 4 and the closest second side 14 is a1; as shown in Figure 5, the first The distance between the edge of the acid-resistant film 5 and the closest first side 13 is b2, and the distance between the edge of the first acid-resistant film 5 and the closest second side 14 is a2; as shown in Figure 6a, the second acid-resistant The distance between the edge of the film 6 and the closest first side 13 is b3, and the distance between the edge of the second acid-resistant film 6 and the closest second side 14 is a3.
  • the distance b1 from the edge of the protective film 4 to the closest first side 13 is approximately: 17 mm to 27 mm
  • the distance a1 from the edge of the protective film 4 to the closest second side 14 is approximately: 14 Mm ⁇ 24 mm.
  • the distance b2 from the edge of the first acid-resistant film 5 to the nearest first side 13 is approximately: 2 mm to 18 mm
  • the distance from the edge of the first acid-resistant film 5 to the nearest second side 14 a2 is approximately: 2 mm to 20 mm.
  • the distance from the edge of the second acid-resistant film 6 to the closest first side 13 is less than or equal to about 0.5 mm, and the distance from the edge of the second acid-resistant film 6 to the closest second side 14 is less than or equal to Approximately 0.5 mm.
  • the shapes of the surface to be protected 9, the protective film 4, the first acid-resistant film 5, and the second acid-resistant film 6 may all be rectangles, the long sides of the rectangle are parallel to the first direction, and the short sides of the rectangle are parallel to the first direction.
  • the two directions are parallel, for example: the long side size of the surface to be protected 9 is about 750mm and the short side size is about 650mm, the distance between the edge of the protective film 4 and the longest side of the surface to be protected 9 closest to that of the protective film 4 is approximately 22mm.
  • the distance between the edge and the short side of the surface 9 to be protected that is closest to is about 19mm, and the distance between the edge of the first anti-acid film 5 and the long side of the surface 9 that is closest to the surface to be protected is about 11.25mm, and the edge of the first anti-acid film 5
  • the distance from the short side of the closest surface 9 to be protected is about 10 mm, and the distance between the edge of the second acid-resistant film 6 and the long side and the short side of the closest surface 9 to be protected is both about 0.25 mm.
  • the long side size of the protective film 4 is about 706 mm
  • the short side size of the protective film 4 is about 612 mm
  • the long side size of the first acid-resistant film 5 is about 727.5 mm
  • the short side size of the first acid-resistant film 5 is about 630 mm
  • the long side size of the second acid-resistant film 6 is about 749.5 mm
  • the short side size of the second acid-resistant film 6 is about 649.5 mm.
  • the orthographic projection of the second acid-resistant film 6 on the surface to be protected 9 may substantially or completely overlap with the surface to be protected 9 .
  • the substrate 2 to be thinned may be, for example, a glass substrate.
  • the protective film 4 may be glass spacer paper; the material of the first acid-resistant film 5 and the second acid-resistant film 6 may include polyethylene terephthalate. ester.
  • embodiments of the present disclosure also provide a method for thinning a display panel. As shown in FIG. 7, the method includes:
  • the display panel includes: a substrate to be thinned and a touch substrate arranged oppositely; the surface to be protected is the surface of the touch substrate facing away from the substrate to be thinned, and the substrate to be thinned
  • the direction from the substrate to be thinned to the touch substrate is divided into the area to be thinned and the non-thinned area, and the protective film covers a part of the surface to be protected;
  • a protective film, a first acid-resistant film, and a second acid-resistant film are sequentially attached to the surface to be protected of the display panel.
  • the protective film can prevent the attaching process of the first acid-resistant film
  • the protective film, the first anti-acid film and the second anti-acid film are used to protect the display module to prevent the display module from being corroded by acid oozing and affecting the product yield.
  • the area of the first acid-resistant film is smaller than the area of the surface to be protected
  • the area of the second acid-resistant film is larger than that of the first acid-resistant film It can further avoid the corrosion of the surface to be protected due to acid seepage in the thinning process.
  • the edge sealing process of coating and curing is performed uniformly, so that the coated frame sealant covers the surface to be protected And the side of the display module, which can further improve the sealing effect of the edge and prevent the phenomenon of acid seepage. Since only one glue curing and sealing process is required, the number of glue curing can be simplified and the process flow can be saved.
  • coating the frame sealant on the area where the surface to be protected is not covered by the protective film may specifically include:
  • the frame sealant is applied to the area where the surface to be protected is not covered by the protective film, so that the frame sealant completely covers the side surface of the protective film and the side surface of the first acid-resistant film.
  • coating the frame sealant on the side surface of the touch substrate and the side surface of the non-thinning area may specifically include:
  • the above method may further include:
  • the isolation frame has a spacer, and the spacer supports the display panel on the side of the second acid-resistant film away from the area to be thinned, and the spacer and the area to be thinned do not contact each other;
  • placing the display panel in the isolation frame may specifically include:
  • the multiple display panels are placed in the same isolation frame, wherein adjacent display panels are separated by spacers.
  • a plurality of display panels are placed in a thinning frame and separated by spacers, and the spacers and the area to be thinned are not in contact with each other, thereby ensuring that the thinning liquid and the thinning area are not in contact with each other.
  • the area is fully contacted to ensure the thinning effect.
  • the isolation frame provided with multiple display panels is placed in the thinning pool containing the thinning liquid.
  • the thinning frame can be used to divide the display panel placement space in the thinning pool, so as to realize that each display is not affected. With the panel thinning effect, multiple display panels can be thinned at the same time, which improves the efficiency of display panel thinning and increases productivity.
  • two partitions 11 may be provided on the side of the surface to be protected of a display panel, that is, the partitions 11 may not completely cover the surface of the display panel 1 on the side facing away from the area to be thinned.
  • the partition 11 is connected to one side surface of the isolation frame 10.
  • the spacer 11 has a quadrangular prism structure, and the surface of the spacer 11 close to the surface to be protected 9 is parallel to the surface to be protected 9 and is in contact with the second acid-resistant film 6.
  • each spacer 11 may be in contact with two opposite sides of the isolation frame 10, that is, the spacer 11 has a plate-like structure.
  • the spacer 11 may also have other shapes, as long as it can serve as a spacer for two adjacent display panels.
  • the orthographic projection of the surface to be protected 9 of the display panel on the isolation portion 11 may coincide with the isolation portion 11, or the surface to be protected of the display panel
  • the orthographic projection of 9 on the isolation portion 11 falls into the isolation portion 11 and is smaller than the isolation portion 11. In this way, the surface of the display panel on the side facing away from the area to be thinned can be in full contact with the isolation portion 11, thereby avoiding contact with the acid thinning liquid, further avoiding corrosion of the protective surface 9 by acid seepage, and improving the production yield of the display panel.
  • the spacer 11 is arranged in a manner such that the display panel is placed behind the isolation frame 10 and the area to be thinned is parallel to a pair of sides of the isolation frame 10, that is, the display panel is vertically placed in the isolation frame 10.
  • the arrangement of the spacer 11 can also make the display panel obliquely placed on the isolation frame 10.
  • placing the isolation frame 10 in the thinning pool containing the thinning liquid may specifically include: placing the isolation frame 10 in the thinning pool, so that the arrangement direction of the display panels in the isolation frame 10 is consistent with the reduction.
  • the liquid surface of the thinning liquid is vertical, so that the area to be thinned of the display panel is parallel to the liquid surface of the thinning liquid.
  • placing the isolation frame in the thinning pool containing the thinning liquid may specifically include: placing the isolation frame 10 in the thinning pool, so that the arrangement direction of the display panels in the isolation frame 10 is consistent with the reduction.
  • the liquid surface of the thinning liquid is parallel, so that the area to be thinned of the display panel is perpendicular to the liquid surface of the thinning liquid.
  • a display panel occupies the thinning pool in the direction parallel to the liquid surface.
  • the space is small, and a thinning pool can accommodate multiple display panels placed vertically or obliquely, and a large number of display panels can be placed in the thinning pool at the same time for thinning, thereby improving the production efficiency of the display panel and increasing the production capacity.
  • the material of the isolation frame 10 is selected from an acid-resistant material, such as polyethylene.
  • the thinning liquid in the thinning tank may include hydrogen fluoride (HF) or sulfuric acid (H 2 SO 4 ).
  • the above method may further include:
  • the cleaning process can be, for example, a simple water cleaning process, as long as the foreign matter and acid thinning liquid remaining on the thinned surface of the display panel can be removed.
  • the second acid-resistant film, the first acid-resistant film and the protective film can be torn off, and a knife can be used to remove the frame sealant.
  • the embodiments of the present disclosure also provide a display panel, which is a display panel after the area to be thinned is thinned using the display panel thinning method provided by the embodiments of the present disclosure.
  • an embodiment of the present disclosure further provides a display device, and the display device includes the display panel provided by the embodiment of the present disclosure.
  • the display device provided by the embodiment of the present disclosure may be, for example, a mobile phone, a tablet computer, a TV, and other devices.
  • a protective film, a first acid-resistant film, and a second acid-resistant film are sequentially attached to the surface to be protected of the display panel ,
  • the protective film can prevent contamination of the surface to be protected during the attaching process of the first acid-resistant film. Since two layers of acid-resistant film are attached, the first acid-resistant film and the second acid-resistant film are attached, and the area of the first acid-resistant film is smaller than the area of the surface to be protected, and the area of the second acid-resistant film is larger than that of the first acid-resistant film. The area can further avoid the corrosion of the surface to be protected due to acid seepage in the thinning process.
  • the edge banding process of coating and curing is performed uniformly after the two layers of acid-resistant film are attached, which can prevent the corrosion of the thinning liquid without the need to thin the area.
  • the coated frame sealant covers the surface to be protected and the side surface of the display module, which can further improve the edge sealing effect and prevent acid bleeding, because only one glue curing is required.
  • the edge banding process can also simplify the number of glue curing times and save the process flow.

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Abstract

本公开提供了显示模组、显示面板的减薄方法、显示面板及显示装置，用以避免出现渗酸现象，提高产品制备良率。本公开提供的显示模组包括：显示面板，在显示面板待保护面之上的保护膜，位于保护膜之上的第一抗酸膜，位于第一抗酸膜之上的第二抗酸膜，和封框胶；显示面板包括相对设置的待减薄基板和触控基板；待保护面为触控基板背离待减薄基板的表面，待减薄基板划分为待减薄区域和非减薄区域；保护膜覆盖部分待保护面；第一抗酸膜在待保护面的正投影落入待保护面内，保护膜在第一抗酸膜的正投影落入第一抗酸膜内；第一抗酸膜在第二抗酸膜的正投影落入第二抗酸膜内；封框胶覆盖待保护面未被保护膜覆盖的区域、触控基板的侧面以及非减薄区域的侧面。

Description

显示模组、显示面板的减薄方法、显示面板及显示装置
相关申请的交叉引用
本公开要求在2020年01月02日提交中国专利局、申请号为202010001201.9、申请名称为“显示模组、显示面板的减薄方法、显示面板及显示装置”的中国专利申请的优先权，其全部内容通过引用结合在本公开中。
技术领域
本公开涉及显示技术领域，尤其涉及一种显示模组、显示面板的减薄方法、显示面板及显示装置。
背景技术
有机发光二极管显示(OrganicLight-EmittingDiode，OLED)产品由于具有自发光、高效率、低工作电压、轻薄、可柔性化等优点，在显示等领域应用广泛。在显示器件中，触控功能受到广泛的应用，例如可以在OLED面板上设置触控面板(TouchScreenPanel，TSP)。
发明内容
本公开实施例提供了一种所述显示模组，所述显示模组包括：
显示面板，包括相对设置的待减薄基板和触控基板，所述触控基板背离所述待减薄基板的表面为所述待保护面，所述待减薄基板沿从所述待减薄基板指向所述触控基板的方向划分为待减薄区域和非减薄区域；
保护膜，位于在所述显示面板的待保护面之上，所述保护膜覆盖部分所述待保护面；
第一抗酸膜，位于所述保护膜背离所述待保护面一侧的表面，所述第一抗酸膜在所述待保护面的正投影落入所述待保护面内，且所述保护膜在所述第一抗酸膜的正投影落入所述第一抗酸膜内；
第二抗酸膜，位于所述第一抗酸膜背离所述待保护面一侧的表面，所述第二抗酸膜在所述待保护面的正投影落入所述待保护面内，所述第一抗酸膜在所述第二抗酸膜的正投影落入所述第二抗酸膜内；
封框胶，覆盖所述待保护面未被所述保护膜覆盖的区域、所述触控基板的侧面以及所述非减薄区域的侧面。
可选地，所述保护膜在所述第一抗酸膜的正投影落入所述第一抗酸膜内且小于所述第一抗酸膜；
所述第一抗酸膜在所述第二抗酸膜的正投影落入所述第二抗酸膜内且小于所述第二抗酸膜。
可选地，所述封框胶完全覆盖所述保护膜的侧面和所述第一抗酸膜的侧面；
所述第一抗酸膜未被所述保护膜覆盖的区域与所述待保护面之间填充所述封框胶；且所述第二抗酸膜未被所述第一抗酸膜覆盖的区域与所述待保护面之间填充所述封框胶。
可选地，在垂直于所述待保护面方向上，所述封框胶的厚度大于所述触控基板的厚度，且所述显示模组未被所述封框胶覆盖的区域的总厚度大于或等于所述待减薄区域的厚度。
可选地，所述待保护面具有与第一方向平行的第一边以及与所述第二方向平行的第二边；
所述保护膜的边缘到最接近的所述第一边的距离约为：17毫米～27毫米，且所述保护膜的边缘到最接近的所述第二边的距离约为：14毫米～24毫米；
其中，所述第一方向与所述第二方向相互交叉。
可选地，所述第一抗酸膜的边缘到最接近的所述第一边的距离约为：2毫米～18毫米，所述第一抗酸膜的边缘到最接近的所述第二边的距离约为：2毫米～20毫米。
可选地，所述第二抗酸膜的边缘到最接近的所述第一边的距离约小于或约等于0.5毫米，所述第二抗酸膜的边缘到最接近的所述第二边的距离约小于 或约等于0.5毫米。
可选地，所述第二抗酸膜在所述待保护面的正投影与所述待保护面重合。
可选地，所述保护膜为玻璃间隔纸；所述第一抗酸膜和所述第二抗酸膜的材料包括聚对苯二甲酸乙二醇酯。
本公开实施例提供的一种显示面板的减薄方法，该方法包括：
在所述显示面板的待保护面贴附保护膜；其中，所述显示面板包括：相对设置的待减薄基板和触控基板；所述待保护面为所述触控基板背离所述待减薄基板的表面，所述待减薄基板沿从所述待减薄基板指向所述触控基板的方向划分为待减薄区域和非减薄区域，所述保护膜覆盖部分所述待保护面；
在所述保护膜背离所述待保护面一侧贴附第一抗酸膜；其中，所述第一抗酸膜在所述待保护面的正投影落入所述待保护面内，且所述保护膜在所述第一抗酸膜的正投影落入所述第一抗酸膜内；
在所述第一抗酸膜背离所述保护膜一侧贴附第二抗酸膜，其中，所述第二抗酸膜在所述待保护面的正投影落入所述待保护面内，所述第一抗酸膜在所述第二抗酸膜的正投影落入所述第二抗酸膜内；
在所述待保护面未被所述保护膜覆盖的区域、在所述触控基板的侧面以及在所述非减薄区域的侧面涂覆封框胶，并对所述封框胶固化。
可选地，在所述待保护面未被所述保护膜覆盖的区域涂覆封框胶，具体包括：
在所述待保护面未被所述保护膜覆盖的区域涂覆封框胶，以使所述封框胶完全覆盖所述保护膜的侧面和所述第一抗酸膜的侧面。
可选地，在所述触控基板的侧面以及在所述非减薄区域的侧面涂覆所述封框胶，具体包括：
在所述触控基板的侧面以及所述非减薄区域的侧面涂覆所述封框胶，以使在垂直于所述待保护面方向上，所述封框胶的厚度大于所述触控基板的厚度，且所述显示模组未被所述封框胶覆盖的区域的总厚度大于或等于所述待减薄区域的厚度。
可选地，在对所述封框胶固化之后，所述方法还包括：
将所述显示面板置于隔离框架，其中，所述隔离框架具有间隔部，所述间隔部在所述第二抗酸膜背离所述待减薄区域的一侧支撑所述显示面板，且所述间隔部与所述待减薄区域互不接触；
将所述隔离框架置于盛装有减薄液的减薄池中，对所述待减薄区域进行腐蚀。
可选地，所述将所述显示面板置于隔离框架，具体包括：
将多个所述显示面板置于同一隔离框架中，其中，相邻所述显示面板通过所述间隔部间隔。
可选地，在对所述待减薄区域进行腐蚀之后，所述方法还包括：
对减薄后的所述显示面板进行清洗；
去除所述第二抗酸膜、所述第一抗酸膜、所述保护膜和所述封框胶。
本公开实施例还提供了一种显示面板，所述显示面板为采用本公开实施例提供的显示面板减薄方法对待减薄区域进行减薄后的显示面板。
本公开实施例还提供了一种显示装置，所述显示装置包括本公开实施例提供的显示面板。
附图说明
图1为本公开实施例提供的一种显示模组的结构示意图；
图2为本公开实施例提供的另一种显示模组的结构示意图；
图3为本公开实施例提供的又一种显示模组的结构示意图；
图4为本公开实施例提供的一种显示模组中保护膜在待保护面的正投影示意图；
图5为本公开实施例提供的一种显示模组中第一抗酸膜在待保护面的正投影示意图；
图6a为本公开实施例提供的一种显示模组中第二抗酸膜在待保护面的正投影示意图；
图6b为本公开实施例提供的一种显示模组中封框胶在待保护面的正投影示意图；
图7为本公开实施例提供的一种显示面板的减薄方法的流程示意图；
图8为本公开实施例提供的一种隔离框架固定显示面板的结构示意图；
图9为本公开实施例提供的另一种隔离框架固定显示面板的结构示意图。
具体实施方式
为了使本公开的目的、技术方案和优点更加清楚，下面将结合附图对本公开作进一步地详细描述，显然，所描述的实施例仅是本公开一部分实施例，而不是全部的实施例。基于本公开中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例，都属于本公开保护的范围。
附图中各部件的形状和大小不反映真实比例，目的只是示意说明本公开内容。
相关技术对OLED玻璃基板进行减薄的工艺中主要是通过酸液浸泡方式，将玻璃剥离变薄，当需要针对单面玻璃进行减薄工艺时，需要将不需要减薄的一面进行抗酸膜贴附保护，例如为了防止TSP的触控电极被腐蚀，需要在TSP表面贴附一层抗酸膜。然而即便贴附一层抗酸膜，在减薄过程中仍会出现渗酸，造成TSP腐蚀不良，从而造成产品触摸性电学不良，影响产品制备良率。
本公开实施例提供的一种显示模组，如图1所示，显示模组包括：显示面板1，在显示面板1的待保护面9之上的保护膜4，位于保护膜4之上的第一抗酸膜5，位于第一抗酸膜5之上的第二抗酸膜6，以及封框胶7。
进一步的，如图1所示，显示面板1包括：相对设置的待减薄基板2和触控基板3；待保护面9为触控基板3背离待减薄基板2的表面，待减薄基板2沿从待减薄基板2指向触控基板3的方向划分为待减薄区域12和非减薄区域8。
在一些实施例中，如图4所示，保护膜4至少部分覆盖待保护面9。
在一些实施例中，如图5所示，第一抗酸膜5在待保护面9的正投影落入待保护面9内。在一些实施例中，如图5所示，第一抗酸膜5在待保护面9的正投影落入待保护面9内，且保护膜4在第一抗酸膜5的正投影落入第一抗酸膜5内。
在一些实施例中，如图6a所示，第二抗酸膜6在待保护面9的正投影落入待保护面9内。在一些实施例中，如图6a所示，第二抗酸膜6在待保护面9的正投影落入待保护面9内，且第一抗酸膜5在第二抗酸膜6的正投影落入第二抗酸膜6。
在一些实施例中，如图6b所示，封框胶7至少覆盖待保护面9未被保护膜4覆盖的区域。在一些实施例中，封框胶7覆盖待保护面9未被保护膜4覆盖的区域、触控基板3的侧面以及非减薄区域8的侧面。
具体地，如图6a所示，保护膜4在第一抗酸膜5的正投影落入第一抗酸膜5内且一般小于第一抗酸膜5；第一抗酸膜5在第二抗酸膜6的正投影落入第二抗酸膜6内且小于第二抗酸膜6。
本公开实施例提供的显示模组，在显示面板的待保护面上依次贴附第一抗酸膜以及第二抗酸膜，且第一抗酸膜的面积小于待保护面的面积，第二抗酸膜的面积大于第一抗酸膜的面积，至少可避免后续对显示模组进行减薄工艺中出现渗酸导致待保护面被腐蚀的问题。
本公开实施例提供的显示模组，在显示面板的待保护面上依次贴附保护膜、第一抗酸膜以及第二抗酸膜，保护膜可以防止第一抗酸膜贴附过程中对待保护面造成污染。由于贴附第一抗酸膜和第二抗酸膜两层抗酸膜，且第一抗酸膜的面积小于待保护面的面积，第二抗酸膜的面积大于第一抗酸膜的面积，封框胶覆盖待保护面未被保护膜覆盖的区域、触控基板的侧面以及非减薄区域的侧面，可以显著提高封框胶的保护效果，进一步避免对显示模组进行减薄工艺中出现渗酸导致待保护面被腐蚀的问题。
需要说明的是，图1中待减薄基板2和触控基板3之间的结构未示出。
在一些实施例中，封框胶至少部分覆盖保护膜4的侧面。
可选地，在本公开实施例提供的显示模组中，如图1所示，封框胶7可以仅完全覆盖保护膜4的侧面。
或者，可选地，在本公开实施例提供的显示模组中，如图2和图3所示，封框胶可以完全覆盖保护膜4的侧面和第一抗酸膜5的侧面；封框胶7填充在第一抗酸膜5未被保护膜4覆盖的区域与待保护面9之间；且封框胶7填充在第二抗酸膜6未被第一抗酸膜5覆盖的区域与待保护面9之间。
需要说明的是，理论上第一抗酸膜的面积大于第二抗酸膜的面积防止出现渗酸的效果好，而理论上当第一抗酸膜的面积小于待保护面以及第二抗酸膜的面积容易出现渗酸，但本公开发明人发现，当第一抗酸膜的面积小于待保护面以及第二抗酸膜的面积时，减薄工艺中完全不会出现渗酸现象，而除本公开提供的方案之外的第一抗酸膜和第二抗酸膜尺寸的设计方式，均会出现不同程度的渗酸，影响显示面板制备良率。
具体地，本公开实施例提供的显示模组，由于第一抗酸膜的面积小于待保护面的面积，且第二抗酸膜的面积大于第一抗酸膜的面积，第一抗酸膜与待保护面之间四周形成凹槽设计，封框胶可以填充在凹槽内，从而可以显著提高封框胶的保护效果，防止酸液钻刻，因此在减薄工艺中完全不会出现渗酸现象。
可选地，在本公开实施例提供的显示模组中，如图3所示，封框胶7还可以覆盖第二抗酸膜6的侧面。
具体地，封框胶7在显示模组的侧面，以及在保护膜4、第一抗酸膜5、第二抗酸膜6与待保护面9之间形成的凹槽均设置封装胶7，可以进一步提高封装胶7对显示模组的密封效果。
可选地，在本公开实施例提供的显示模组中，如图1至图3所示，在垂直于待保护面9方向上，封框胶7的厚度会大于触控基板3的厚度，以完全保护触控基板3不被酸液刻蚀，且显示模组未被封框胶7覆盖的区域的总厚度大于或等于待减薄区域12的厚度，保证可以完全露出待减薄区域12以便被酸液刻蚀。
可选地，在本公开实施例提供的显示模组中，如图4至图6a所示，待保护面9具有与第一方向X平行的第一边13以及与第二方向Y平行的第二边14，其中，第一方向X与第二方向Y相互交叉。在图4～图6a中，待保护面9为矩形，第一方向X与第二方向Y相互垂直，第一边13为矩形的长边，第二边14为矩形的短边。
如图4所示，保护膜4的边缘与最接近的第一边13的距离为b1，保护膜4的边缘与最接近的第二边14的距离为a1；如图5所示，第一抗酸膜5的边缘与最接近的第一边13的距离为b2，第一抗酸膜5的边缘与最接近的第二边14的距离为a2；如图6a所示，第二抗酸膜6的边缘与最接近的第一边13的距离为b3，第二抗酸膜6的边缘与最接近的第二边14的距离为a3。
可选地，保护膜4的边缘到最接近的第一边13的距离b1约为：17毫米～27毫米，且保护膜4的边缘到最接近的第二边14的距离a1约为：14毫米～24毫米。
可选地，第一抗酸膜5的边缘到最接近的第一边13的距离b2约为：2毫米～18毫米，第一抗酸膜5的边缘到最接近的第二边14的距离a2约为：2毫米～20毫米。
可选地，第二抗酸膜6的边缘到最接近的第一边13的距离小于或等于约0.5毫米，第二抗酸膜6的边缘到最接近的第二边14的距离小于或等于约0.5毫米。
文中约是指允许工艺和测量误差范围内的数据，并不严格限定界限，允许一定程度的数值浮动，例如可以上下浮动10％以内。
在具体实施时，待保护面9、保护膜4、第一抗酸膜5以及第二抗酸膜6的形状可以均为矩形，矩形的长边与第一方向平行，矩形的短边与第二方向平行，例如：待保护面9的长边尺寸约为750mm以及短边尺寸约为650mm，保护膜4的边缘距离最接近的待保护面9长边的距离约为22mm，保护膜4的边缘距离最接近的待保护面9短边的距离约为19mm，第一抗酸膜5的边缘距离最接近的待保护面9长边的距离约为11.25mm，第一抗酸膜5的边缘距 离最接近的待保护面9短边的距离约为10mm，第二抗酸膜6的边缘距离最接近的待保护面9的长边和短边的距离均约为0.25mm。即保护膜4的长边尺寸约为706mm，保护膜4的短边尺寸约为612mm，第一抗酸膜5的长边尺寸约为727.5mm，第一抗酸膜5的短边尺寸约为630mm，第二抗酸膜6的长边尺寸约为749.5mm，第二抗酸膜6的短边尺寸约为649.5mm。
可选地，在本公开实施例提供的显示模组中，如图1至图3所示，第二抗酸膜6在待保护面9的正投影可以与待保护面9基本上或完全重合。
具体地，在本公开实施例提供的显示模组中，待减薄基板2例如可以是玻璃基板。
可选地，在本公开实施例提供的显示模组中，保护膜4可以为玻璃间隔纸；第一抗酸膜5和第二抗酸膜6的材料可以包括聚对苯二甲酸乙二醇酯。
基于同一发明构思，本公开实施例还提供了一种显示面板的减薄方法，如图7所示，该方法包括：
S101、在显示面板的待保护面贴附保护膜；显示面板包括：相对设置的待减薄基板和触控基板；待保护面为触控基板背离待减薄基板的表面，待减薄基板沿从待减薄基板指向触控基板的方向划分为待减薄区域和非减薄区域，保护膜覆盖部分待保护面；
S102、在保护膜背离待保护面一侧贴附第一抗酸膜；其中，第一抗酸膜在待保护面的正投影落入待保护面内，且保护膜在第一抗酸膜的正投影落入第一抗酸膜内；
S103、在第一抗酸膜背离保护膜一侧贴附第二抗酸膜，其中，第二抗酸膜在待保护面的正投影落入待保护面内，第一抗酸膜在第二抗酸膜的正投影落入第二抗酸膜内；
S104、在待保护面未被保护膜覆盖的区域、在触控基板的侧面以及在非减薄区域的侧面涂覆封框胶，并对封框胶固化。
本公开实施例提供的显示面板减薄方法，在显示面板的待保护面上依次贴附保护膜、第一抗酸膜以及第二抗酸膜，保护膜可以防止第一抗酸膜贴附 过程中对待保护面造成污染，利用保护膜、第一抗酸膜以及第二抗酸膜对显示模组进行保护，避免出现渗酸导致显示模组被腐蚀而影响产品良率。由于贴附第一抗酸膜和第二抗酸膜两层抗酸膜，且第一抗酸膜的面积小于待保护面的面积，第二抗酸膜的面积大于第一抗酸膜的面积，可以进一步避免减薄工艺中出现渗酸导致待保护面被腐蚀。并且，由于第一抗酸膜比第二抗酸膜的面积小，从而在两层抗酸膜贴附之后统一进行涂胶固化的封边工艺时，使涂覆的封框胶覆盖待保护面以及显示模组的侧面，从而可以进一步提高封边密封效果，防止出现渗酸现象，由于仅需要进行一次涂胶固化封边工艺还可以简化涂胶固化次数，节省工艺流程。
可选地，在待保护面未被保护膜覆盖的区域涂覆封框胶，可以具体包括：
在待保护面未被保护膜覆盖的区域涂覆封框胶，以使封框胶完全覆盖保护膜的侧面和第一抗酸膜的侧面。
可选地，在触控基板的侧面以及在非减薄区域的侧面涂覆封框胶，可以具体包括：
在触控基板的侧面以及非减薄区域的侧面涂覆封框胶，以使在垂直于待保护面方向上，封框胶的厚度大于触控基板的厚度，且显示模组未被封框胶覆盖的区域的总厚度大于或等于待减薄区域的厚度。
可选地，在对封框胶固化之后，如图7所示，上述方法还可以包括：
S105、将显示面板置于隔离框架中；隔离框架具有间隔部，间隔部在第二抗酸膜背离待减薄区域的一侧支撑显示面板，且间隔部与待减薄区域互不接触；
S106、将隔离框架置于盛装有减薄液的减薄池中，对待减薄区域进行腐蚀。
可选地，将显示面板置于隔离框架中，可以具体包括：
将多个显示面板置于同一隔离框架中，其中，相邻显示面板通过间隔部间隔。
本公开实施例提供的显示面板减薄方法，多个显示面板置于减薄框架中， 并通过间隔部间隔，间隔部与待减薄区域互不接触，从而可以保证减薄液与待减薄区域充分接触，保证减薄效果。并且，将设置有多个显示面板的隔离框架置于盛装有减薄液减薄池中，可以利用减薄框架对减薄池中的显示面板放置空间进行分割，以实现在不影响每一显示面板减薄效果的同时对多个显示面板同时进行减薄处理，提高显示面板减薄效率，提高产能。
可选地，如图8所示，一块显示面板的待保护面一侧可以设置两个间隔部11，即间隔部11可以未完全覆盖显示面板1背离待减薄区域一侧的表面，每一间隔部11与隔离框架10的一个侧面连接。在图8中，间隔部11为四棱柱结构，间隔部11靠近待保护面9一侧的表面与待保护面9平行，且与第二抗酸膜6接触。
或者，可选地，如图9所示，每一间隔部11可以与隔离框架10相对的两个侧面接触，即间隔部11为板状结构。在具体实施时，间隔部11也可以是其他形状，只要可以对相邻的两个显示面板起到间隔作用即可。
当每一间隔部11与隔离框架10相对的两个侧面接触时，可选地，显示面板的待保护面9在隔离部11的正投影可以与隔离部11重合，或者显示面板的待保护面9在隔离部11的正投影落入隔离部11内且小于隔离部11。这样，显示面板背离待减薄区域一侧的表面可以与隔离部11完全接触，从而避免其与酸性减薄液接触，可以进一步避免渗酸对待保护面9的腐蚀，提高显示面板制备良率。
在具体实施时，间隔部11的设置方式，可以使得显示面板置于隔离框架10后，待减薄区域与隔离框架10的一对侧面平行，即显示面板竖直置于隔离框架10内。当然，间隔部11的设置方式，也可以使得显示面板倾斜置于隔离框架10。
可选地，将隔离框架10置于盛装有减薄液减薄池中，可以具体包括：将隔离框架10置于减薄池中，以使在隔离框架10中的显示面板的排列方向与减薄液的液面垂直，使显示面板的待减薄区域与减薄液的液面平行。
或者，可选地，将隔离框架置于盛装有减薄液减薄池中，可以具体包括： 将隔离框架10置于减薄池中，以使在隔离框架10中显示面板的排列方向与减薄液的液面平行，使显示面板的待减薄区域与减薄液的液面垂直。
本公开实施例提供的显示面板减薄方法，由于隔离框架10中显示面板的排列方向与减薄液的液面平行，从而在平行于液面方向上，一块显示面板在减薄池中所占空间很小，一个减薄池可以容纳多个竖直或倾斜放置的显示面板，可以将大批量的显示面板同时放入减薄池进行减薄，从而提高显示面板的制备效率，提高产能。
例如，在本公开实施例提供的隔离框架10内可以同时放置大于100块的显示面板。隔离框架10的材料选择抗酸材料，例如可以是聚乙烯。减薄池中的减薄液可以包括氟化氢(HF)，还可以包括硫酸(H 2SO 4)。
可选地，在对待减薄区域进行腐蚀之后，如图7所示，上述方法还可以包括：
S107、对减薄后的显示面板进行清洗；
S108、去除第二抗酸膜、第一抗酸膜、保护膜和封框胶。
清洗工艺例如可以是简单的水洗工艺，只要可以去除残留在显示面板减薄后表面的异物和酸性减薄液即可。在水洗后，可将第二抗酸膜、第一抗酸膜以及保护膜撕除，且可以采用刀刮去除封框胶。
基于同一发明构思，本公开实施例还提供了一种显示面板，显示面板为采用本公开实施例提供的显示面板减薄方法对待减薄区域进行减薄后的显示面板。
基于同一发明构思，本公开实施例还提供了一种显示装置，显示装置包括本公开实施例提供的显示面板。本公开实施例提供的显示装置，例如可以是手机、平板电脑、电视等装置。
综上，本公开实施例提供的显示模组，显示面板减薄方法、显示面板以及显示装置，在显示面板的待保护面上依次贴附保护膜、第一抗酸膜以及第二抗酸膜，保护膜可以防止第一抗酸膜贴附过程中对待保护面造成污染。由于贴附第一抗酸膜和第二抗酸膜两层抗酸膜，且第一抗酸膜的面积小于待保 护面的面积，且第二抗酸膜的面积大于第一抗酸膜的面积，可以进一步避免减薄工艺中出现渗酸导致待保护面被腐蚀。此外，由于第一抗酸膜比第二抗酸膜的面积小，在两层抗酸膜贴附之后统一进行涂胶固化的封边工艺，可以在防止减薄液腐蚀不需要减薄区域的截面的同时，对于触控基板，使得涂覆的封框胶覆盖待保护面以及显示模组的侧面，从而可以进一步提高封边密封效果，防止出现渗酸现象，由于仅需要进行一次涂胶固化封边工艺还可以简化涂胶固化次数，节省工艺流程。
显然，本领域的技术人员可以对本公开进行各种改动和变型而不脱离本公开的精神和范围。这样，倘若本公开的这些修改和变型属于本公开权利要求及其等同技术的范围之内，则本公开也意图包含这些改动和变型在内。

Claims (17)

  1. 一种显示模组，包括：
    显示面板，包括相对设置的待减薄基板和触控基板，所述触控基板背离所述待减薄基板的表面为所述待保护面，所述待减薄基板沿从所述待减薄基板指向所述触控基板的方向划分为待减薄区域和非减薄区域；
    保护膜，位于在所述显示面板的待保护面之上，所述保护膜覆盖部分所述待保护面；
    第一抗酸膜，位于所述保护膜背离所述待保护面一侧的表面，所述第一抗酸膜在所述待保护面的正投影落入所述待保护面内，且所述保护膜在所述第一抗酸膜的正投影落入所述第一抗酸膜内；
    第二抗酸膜，位于所述第一抗酸膜背离所述待保护面一侧的表面，所述第二抗酸膜在所述待保护面的正投影落入所述待保护面内，所述第一抗酸膜在所述第二抗酸膜的正投影落入所述第二抗酸膜内；
    封框胶，覆盖所述待保护面未被所述保护膜覆盖的区域、所述触控基板的侧面以及所述非减薄区域的侧面。
  2. 根据权利要求1所述的显示模组，其中，所述保护膜在所述第一抗酸膜的正投影落入所述第一抗酸膜内且小于所述第一抗酸膜；
    所述第一抗酸膜在所述第二抗酸膜的正投影落入所述第二抗酸膜内且小于所述第二抗酸膜。
  3. 根据权利要求2所述的显示模组，其中，所述封框胶完全覆盖所述保护膜的侧面和所述第一抗酸膜的侧面；
    所述第一抗酸膜未被所述保护膜覆盖的区域与所述待保护面之间填充所述封框胶；且所述第二抗酸膜未被所述第一抗酸膜覆盖的区域与所述待保护面之间填充所述封框胶。
  4. 根据权利要求1所述的显示模组，其中，在垂直于所述待保护面方向上，所述封框胶的厚度大于所述触控基板的厚度，且所述显示模组未被所述 封框胶覆盖的区域的总厚度大于或等于所述待减薄区域的厚度。
  5. 根据权利要求2所述的显示模组，其中，所述待保护面具有与第一方向平行的第一边以及与所述第二方向平行的第二边；
    所述保护膜的边缘到最接近的所述第一边的距离约为：17毫米～27毫米，且所述保护膜的边缘到最接近的所述第二边的距离约为：14毫米～24毫米；
    其中，所述第一方向与所述第二方向相互交叉。
  6. 根据权利要求5所述的显示模组，其中，所述第一抗酸膜的边缘到最接近的所述第一边的距离约为：2毫米～18毫米，所述第一抗酸膜的边缘到最接近的所述第二边的距离约为：2毫米～20毫米。
  7. 根据权利要求5所述的显示模组，其中，所述第二抗酸膜的边缘到最接近的所述第一边的距离约小于或约等于0.5毫米，所述第二抗酸膜的边缘到最接近的所述第二边的距离约小于或约等于0.5毫米。
  8. 根据权利要求7所述的显示模组，其中，所述第二抗酸膜在所述待保护面的正投影与所述待保护面重合。
  9. 根据权利要求1-8任一项所述的显示模组，其中，所述保护膜为玻璃间隔纸；所述第一抗酸膜和所述第二抗酸膜的材料包括聚对苯二甲酸乙二醇酯。
  10. 一种显示面板的减薄方法，其中，所述方法包括：
    在所述显示面板的待保护面贴附保护膜；其中，所述显示面板包括：相对设置的待减薄基板和触控基板；所述待保护面为所述触控基板背离所述待减薄基板的表面，所述待减薄基板沿从所述待减薄基板指向所述触控基板的方向划分为待减薄区域和非减薄区域，所述保护膜覆盖部分所述待保护面；
    在所述保护膜背离所述待保护面一侧贴附第一抗酸膜；其中，所述第一抗酸膜在所述待保护面的正投影落入所述待保护面内，且所述保护膜在所述第一抗酸膜的正投影落入所述第一抗酸膜内；
    在所述第一抗酸膜背离所述保护膜一侧贴附第二抗酸膜，其中，所述第二抗酸膜在所述待保护面的正投影落入所述待保护面内，所述第一抗酸膜在 所述第二抗酸膜的正投影落入所述第二抗酸膜内；
    在所述待保护面未被所述保护膜覆盖的区域、在所述触控基板的侧面以及在所述非减薄区域的侧面涂覆封框胶，并对所述封框胶固化。
  11. 根据权利要求10所述的方法，其中，在所述待保护面未被所述保护膜覆盖的区域涂覆封框胶，具体包括：
    在所述待保护面未被所述保护膜覆盖的区域涂覆封框胶，以使所述封框胶完全覆盖所述保护膜的侧面和所述第一抗酸膜的侧面。
  12. 根据权利要求10所述的方法，其中，在所述触控基板的侧面以及在所述非减薄区域的侧面涂覆所述封框胶，具体包括：
    在所述触控基板的侧面以及所述非减薄区域的侧面涂覆所述封框胶，以使在垂直于所述待保护面方向上，所述封框胶的厚度大于所述触控基板的厚度，且所述显示模组未被所述封框胶覆盖的区域的总厚度大于或等于所述待减薄区域的厚度。
  13. 根据权利要求10-12任一项所述的方法，其中，在对所述封框胶固化之后，所述方法还包括：
    将所述显示面板置于隔离框架中；其中，所述隔离框架具有间隔部，所述间隔部在所述第二抗酸膜背离所述待减薄区域的一侧支撑所述显示面板，且所述间隔部与所述待减薄区域互不接触；
    将所述隔离框架置于盛装有减薄液的减薄池中，对所述待减薄区域进行腐蚀。
  14. 根据权利要求13所述的方法，其中，所述将所述显示面板置于隔离框架中，具体包括：
    将多个所述显示面板置于同一隔离框架中，其中，相邻所述显示面板通过所述间隔部间隔。
  15. 根据权利要求13所述的方法，其中，在对所述待减薄区域进行腐蚀之后，所述方法还包括：
    对减薄后的所述显示面板进行清洗；
    去除所述第二抗酸膜、所述第一抗酸膜、所述保护膜和所述封框胶。
  16. 一种显示面板，其中，所述显示面板为采用根据权利要求10～15任一项所述的方法对待减薄区域进行减薄后的显示面板。
  17. 一种显示装置，其中，所述显示装置包括根据权利要求16所述的显示面板。
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