Display panel

By setting up a suspended portion in the shading protective film of the display panel to collect excess ink in the sprayed ink, the problems of ink accumulation and protrusion are solved, and the yield and production efficiency of the display panel are improved.

CN222813266UActive Publication Date: 2025-04-29EVERDISPLAY OPTRONICS (SHANGHAI) CO LTD
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Patent Information

Application Number
CN202421753938.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-23
Publication Date
2025-04-29
Estimated Expiration
2034-07-23

AI Technical Summary

Technical Problem

During the ink spraying process of the existing display panel, due to the height difference between the main ink and the protective film, ink accumulates and forms protrusions, affecting the display effect and reducing yield.

Method used

A display panel is designed, using a shielding protective film with a suspended portion, which is located between the main ink and the shielding portion, and is used to collect excess ink in the spray ink to avoid ink accumulation and protrusion.

Benefits of technology

It effectively avoids ink bulges and bubbles, improves the yield of the display panel, and reduces production costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a display panel. According to the display panel, main body ink covers an edge area of a cover plate; the shielding protective film comprises a central covering part and an ink covering part surrounding the central covering part; the ink covering part comprises a shielding part and a suspension part surrounding the shielding part, and the shielding part is connected with the central covering part; the central covering part covers the central area of the cover plate, and the shielding part covers part of the main body ink; the suspended part is connected with the shielding part, the vertical projection of the suspended part on the cover plate is located in the main ink, and the surface, close to the main ink, of the suspended part is spaced from the main ink by a first distance. According to the utility model, the phenomenon that the printing ink exceeds the gauge is avoided, the phenomenon that bubbles exist in the optical cement due to the fact that part of the printing ink protrudes in the process that the glass cover plate and the display module are attached through the optical cement after the printing ink is sprayed is avoided, and the problem that the display effect of the display panel is influenced due to the fact that the protruding printing ink falls off and enters the display area is also avoided; and the yield of the display panel is improved.
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Description

Technical Field

[0001] The utility model relates to the field of display technology, and in particular to a display panel. Background Art

[0002] Figure 1 is a schematic diagram of the structure of a display panel in the prior art, such as Figure 1 As shown, since the sides of the glass cover plate 1 and the main body ink 2 require ink 4, it is necessary to spray ink to apply ink 4 to the sides of the glass cover plate 1 and the main body ink 2. In order to prevent the ink 4 from entering the display area during spraying, a protective film 5 needs to be attached to the display area for shielding.

[0003] In the prior art, due to the height difference between the main ink 1 and the protective film 5 , the ink 4 may accumulate in the edge area of ​​the protective film 5 , resulting in bulges, which affects the yield of the display panel. Utility Model Content

[0004] The utility model provides a display panel to avoid the phenomenon of ink exceeding the specification, and to avoid the phenomenon of bubbles in the optical glue caused by partial ink protrusions during the process of bonding the glass cover plate and the display module through the optical glue after the ink is sprayed, so as to avoid the problem of the display effect of the display panel being affected by the protruding ink falling into the display area, thereby improving the yield rate of the display panel.

[0005] According to one aspect of the present invention, a display panel is provided, the display panel comprising:

[0006] Cover plate, main body ink and shielding protective film;

[0007] The cover plate includes a central area and an edge area surrounding the central area;

[0008] The main body ink covers the edge area of ​​the cover plate;

[0009] The shielding protective film includes a central covering portion and an ink covering portion surrounding the central covering portion; the ink covering portion includes a shielding portion and a suspended portion surrounding the shielding portion, and the shielding portion is connected to the central covering portion;

[0010] The central covering portion covers the central area of ​​the cover plate, and the shielding portion covers part of the main ink; the suspended portion is connected to the shielding portion, and the vertical projection of the suspended portion on the cover plate is located in the main ink, and the surface of the suspended portion close to the main ink is separated from the main ink by a first distance; wherein the first distance is greater than 0.

[0011] Furthermore, the surface of the suspended portion away from the main body of ink is flush with the surface of the shielding portion away from the main body of ink.

[0012] Further, the shielding protective film includes a first shielding protective film and a second shielding protective film;

[0013] The first shielding protective film includes a first central covering portion and a first ink shielding portion surrounding the first central covering portion;

[0014] The second shielding protective film comprises a second central covering portion, a second ink shielding portion and a hanging shielding portion, wherein the second ink shielding portion is arranged around the second central covering portion, and the hanging shielding portion is arranged around the second ink shielding portion;

[0015] The first central covering portion covers the central area of ​​the cover plate, and the first ink shielding portion covers a portion of the main body ink;

[0016] The second central covering portion covers the first central covering portion, the second ink shielding portion covers the first ink shielding portion, and the vertical projection of the hanging shielding portion on the cover plate is located in the main body ink;

[0017] The first central covering portion and the second central covering portion are central covering portions, the first ink shielding portion and the second ink shielding portion are shielding portions of the ink covering portion; and the hanging shielding portion is a hanging portion.

[0018] Furthermore, the width of the overhanging portion in the direction from the central area of ​​the cover plate to the edge area of ​​the cover plate is in the range of 0.15 mm to 1 mm.

[0019] Further, the thickness of the first shielding protective film ranges from 0.06 mm to 0.2 mm;

[0020] The thickness of the second shielding protection film ranges from 0.06 mm to 0.2 mm.

[0021] Furthermore, the distance between the edge of the first ink shielding portion away from the first central covering portion and the edge of the main body ink close to the central area is greater than or equal to 0.5 mm;

[0022] The distance between the edge of the first ink shielding portion away from the first central covering portion and the edge of the main body ink away from the central area is greater than or equal to 0.5 mm.

[0023] Furthermore, the thickness of the suspended portion ranges from 0.06 mm to 0.2 mm.

[0024] Furthermore, the shielding protective film is a polyethylene terephthalate shielding protective film and a polyethylene shielding protective film.

[0025] Furthermore, the cover plate includes a glass cover plate.

[0026] The display panel designed in the embodiment of the utility model comprises a cover plate, a main body ink and a shielding protective film, the cover plate comprises a central area and an edge area surrounding the central area, the main body ink covers the edge area of ​​the cover plate, the shielding protective film comprises a central covering part and an ink covering part surrounding the central covering part, the ink covering part comprises a shielding part and a suspended part surrounding the shielding part, the shielding part is connected to the central covering part, the central covering part covers the central area of ​​the cover plate, and the shielding part covers part of the main body ink; the suspended part is connected to the shielding part, and the surface of the suspended part close to the main body ink is spaced a first distance from the main body ink, compared with the shielding protective film in the prior art, With regard to the provision of a suspended portion, the display panel designed in the embodiment of the utility model can allow excess ink during the ink spraying process to flow into the gap between the suspended portion and the main ink, which can effectively prevent the sprayed ink from accumulating on the edge of the shielding protective film to form ink protrusions, thereby avoiding the phenomenon of ink exceeding the specification, and effectively avoids the phenomenon of bubbles in the optical glue caused by partial ink protrusions during the process of bonding the glass cover plate and the display module through optical glue after spraying the ink. At the same time, it can also avoid the problem of the display effect of the display panel being affected by the ink falling off the protrusions and entering the display area, thereby improving the yield of the display panel.

[0027] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present utility model, nor are they intended to limit the scope of the present utility model. Other features of the present utility model will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0029] Figure 1 is a schematic diagram of the structure of a display panel in the prior art;

[0030] Figure 2 is a structural schematic diagram of a display panel provided according to an embodiment of the utility model;

[0031] Figure 3 yes Figure 2 A schematic diagram of a cross-sectional structure along the A-A' direction;

[0032] Figure 4 yes Figure 2 Schematic diagram of another cross-sectional structure along the A-A' direction. DETAILED DESCRIPTION

[0033] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0034] It should be noted that the terms "first", "second", etc. in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the utility model described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0035] The embodiment of the utility model designs a display panel. Figure 2 is a schematic diagram of the structure of a display panel provided according to an embodiment of the utility model, Figure 3 yes Figure 2 A schematic diagram of a cross-sectional structure along the A-A' direction, refer to Figure 2 and Figure 3 , the display panel includes:

[0036] Cover plate 1, main body ink 2 and shielding protective film 3;

[0037] The cover plate 1 comprises a central area 11 and an edge area 12 surrounding the central area 11;

[0038] The main body ink 2 covers the edge area 12 of the cover plate 1;

[0039] The shielding protection film 3 includes a central covering portion 31 and an ink covering portion 32 surrounding the central covering portion 31; the ink covering portion 32 includes a shielding portion 321 and a suspended portion 322 surrounding the shielding portion 321, and the shielding portion 321 is connected to the central covering portion 31;

[0040] The central covering portion 31 covers the central area 11 of the cover plate 1, and the shielding portion 321 covers part of the main body ink 2; the suspended portion 322 is connected to the shielding portion 321, and the vertical projection of the suspended portion 322 on the cover plate 1 is located in the main body ink 2, and the surface of the suspended portion 322 close to the main body ink 2 is separated from the main body ink 2 by a first distance h.

[0041] The shielding protective film 3 may be composed of a single layer of protective film, or may be formed by attaching two layers of protective films, which is not limited in the embodiment of the utility model.

[0042] Specifically, when the display panel designed in the embodiment of the utility model is sprayed with ink through a nozzle, the shielding protective film 3 on the cover plate 1 and the main body ink 2 can shield the central area 11 of the cover plate 1 and part of the main body ink 2 to prevent the sprayed ink from being sprayed into the central area 11 of the cover plate 1, thereby affecting the display effect of the display area. The shielding protective film 3 is provided with a suspended portion 322, which can make the excess ink in the process of spraying ink flow into the interval between the suspended portion 322 and the main body ink 2, and can effectively prevent the sprayed ink from accumulating at the edge of the shielding protective film 3 to form ink protrusions. Exemplarily, the first distance h between the surface of the suspended portion 322 close to the main body ink 2 and the main body ink 2 can be 0.06mm.

[0043] The display panel designed in the embodiment of the utility model comprises a cover plate 1, a main body ink 2 and a shielding protective film 3, the cover plate 1 comprises a central area 11 and an edge area 12 surrounding the central area 11, the main body ink 2 covers the edge area 12 of the cover plate 1, the shielding protective film 3 comprises a central covering portion 31 and an ink covering portion 32 surrounding the central covering portion 31, the ink covering portion 32 comprises a shielding portion 321 and a suspended portion 322 surrounding the shielding portion 321, the shielding portion 321 is connected to the central covering portion 31, the central covering portion 31 covers the central area 11 of the cover plate 1, the shielding portion 321 covers part of the main body ink 2; the suspended portion 322 is connected to the shielding portion 321, and the surface of the suspended portion 322 close to the main body ink 2 is in contact with the main body ink 2. The ink 2 is spaced a first distance h apart. Compared with the prior art in which the shielding protective film 3 is not provided with a suspended portion 322, the display panel designed in the embodiment of the utility model can allow the excess ink in the ink spraying process to flow into the spacing area between the suspended portion 322 and the main ink 2, which can effectively prevent the sprayed ink from accumulating on the edge of the shielding protective film 3 to form ink protrusions, thereby avoiding the phenomenon of ink exceeding the specification, and effectively avoiding the phenomenon of bubbles in the optical glue caused by partial ink protrusions during the process of bonding the glass cover plate and the display module through optical glue after spraying the ink. At the same time, it can also avoid the problem of the display effect of the display panel being affected by the protruding ink falling into the display area, thereby improving the yield of the display panel.

[0044] For further information, please refer to Figure 2 and Figure 3 The surface of the suspended portion 322 away from the main body of ink 2 is flush with the surface of the shielding portion 321 away from the main body of ink 2 .

[0045] Specifically, setting the surface of the suspended portion 322 away from the main ink 2 to be flush with the surface of the shielding portion 321 away from the main ink 2 can reduce the manufacturing process of the shielding protective film 3, thereby effectively reducing the manufacturing cost of the shielding protective film 3.

[0046] Furthermore, Figure 4 yes Figure 2 Another cross-sectional structure diagram along the A-A' direction, refer to Figure 4 ,

[0047] The shielding protection film includes a first shielding protection film 031 and a second shielding protection film 032;

[0048] The first shielding protection film 031 includes a first central covering portion 311 and a first ink shielding portion 312 surrounding the first central covering portion 311;

[0049] The second shielding protection film 032 includes a second central covering portion 323, a second ink shielding portion 324 and a hanging shielding portion 325, wherein the second ink shielding portion 324 is disposed around the second central covering portion 323, and the hanging shielding portion 325 is disposed around the second ink shielding portion 324;

[0050] The first central covering portion 311 covers the central area 11 of the cover plate 1 , and the first ink shielding portion 312 covers part of the main body ink 2 ;

[0051] The second central covering portion 323 covers the first central covering portion 311 , the second ink shielding portion 324 covers the first ink shielding portion 312 , and the vertical projection of the hanging shielding portion 325 on the cover plate 1 is located in the main body ink 2 ;

[0052] The first central covering portion 311 and the second central covering portion 323 are central covering portions, the first ink shielding portion 312 and the second ink shielding portion 324 are shielding portions of the ink covering portion, and the hanging shielding portion 325 is a hanging portion.

[0053] Specifically, a second shielding protective film 032 is arranged above the first shielding protective film 031, and the second shielding protective film 032 includes a suspended shielding portion 325, and the vertical projection of the suspended shielding portion 325 on the cover plate 1 is located in the main ink 2, so that excess ink during the ink spraying process can flow into the gap between the suspended shielding portion 325 and the main ink 2, which can effectively prevent the sprayed ink from accumulating on the edge of the shielding protective film 3 to form ink bulges.

[0054] Furthermore, the width of the overhanging portion in the direction from the central area of ​​the cover plate to the edge area of ​​the cover plate is in the range of 0.15 mm to 1 mm.

[0055] Specifically, the width of the suspended portion in the direction from the central area of ​​the cover plate to the edge area of ​​the cover plate is set to be in the range of 0.15mm-1mm, which can block part of the ink sprayed into the interval area between the suspended portion and the main ink, and at the same time reserve sufficient accommodation space for excess ink in the process of spraying ink, so that all excess ink in the process of spraying ink can flow into the interval area between the suspended portion and the main ink, effectively avoiding the accumulation of sprayed ink on the edge of the shielding protective film to form ink protrusions. Preferably, the width of the suspended portion in the direction from the central area of ​​the cover plate to the edge area of ​​the cover plate is 0.2mm.

[0056] Further, the thickness of the first shielding protective film ranges from 0.06 mm to 0.2 mm;

[0057] The thickness of the second shielding protection film ranges from 0.06 mm to 0.2 mm.

[0058] Furthermore, the distance between the edge of the first ink shielding portion away from the first central covering portion and the edge of the main body ink close to the central area is greater than or equal to 0.5 mm;

[0059] The distance between the edge of the first ink shielding portion away from the first central covering portion and the edge of the main body ink away from the central area is greater than or equal to 0.5 mm.

[0060] Specifically, the distance between the edge of the first ink shielding portion away from the first central covering portion and the edge of the main ink close to the central area is set to be greater than or equal to 0.5 mm, which can effectively realize the first shielding protective film shielding the central area of ​​the cover plate; and the distance between the edge of the first ink shielding portion away from the first central covering portion and the edge of the main ink away from the central area is set to be greater than or equal to 0.5 mm, while shielding the gap between the main ink and the glass cover plate to prevent the bright light of the display area from penetrating from the gap between the main ink and the glass cover plate, the spray ink sprayed on the main ink can ensure normal assembly with the display module.

[0061] Furthermore, the thickness of the suspended portion ranges from 0.06 mm to 0.2 mm.

[0062] Furthermore, the shielding protective film is a polyethylene terephthalate shielding protective film and a polyethylene shielding protective film.

[0063] Specifically, the shielding protective film may be a polyethylene terephthalate shielding protective film, a polyethylene shielding protective film, or other adhesive protective films.

[0064] Furthermore, the cover plate includes a glass cover plate.

[0065] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps described in the present invention can be performed in parallel, sequentially or in different orders, as long as the desired results of the technical solution of the present invention can be achieved, and this document does not limit this.

[0066] The above specific implementations do not constitute a limitation on the protection scope of the present utility model. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A display panel, characterized in that: include: Cover plate, main body ink and shielding protective film; The cover plate includes a central area and an edge area surrounding the central area; The main body ink covers the edge area of ​​the cover plate; The shielding protection film includes a central covering portion and an ink covering portion surrounding the central covering portion; the ink covering portion includes a shielding portion and a suspended portion surrounding the shielding portion, and the shielding portion is connected to the central covering portion; The central covering portion covers the central area of ​​the cover plate, and the shielding portion covers a portion of the main ink; the suspended portion is connected to the shielding portion, and the vertical projection of the suspended portion on the cover plate is located in the main ink, and the surface of the suspended portion close to the main ink is spaced a first distance from the main ink; wherein the first distance is greater than 0.

2. The display panel according to claim 1, characterized in that: The surface of the suspended portion away from the main body of ink is flush with the surface of the shielding portion away from the main body of ink.

3. The display panel according to claim 1 or 2, characterized in that: The shielding protective film includes a first shielding protective film and a second shielding protective film; The first shielding protection film includes a first central covering portion and a first ink shielding portion surrounding the first central covering portion; The second shielding protective film comprises a second central covering portion, a second ink shielding portion and a hanging shielding portion, wherein the second ink shielding portion is arranged around the second central covering portion, and the hanging shielding portion is arranged around the second ink shielding portion; The first central covering portion covers the central area of ​​the cover plate, and the first ink shielding portion covers a portion of the main body ink; The second central covering portion covers the first central covering portion, the second ink shielding portion covers the first ink shielding portion, and the vertical projection of the hanging shielding portion on the cover plate is located in the main body ink; The first central covering portion and the second central covering portion are the central covering portion, the first ink shielding portion and the second ink shielding portion are the shielding portions of the ink covering portion; and the hanging shielding portion is the suspended portion.

4. The display panel according to claim 1, characterized in that: The width of the suspended portion in a direction from the central area of ​​the cover plate to the edge area of ​​the cover plate is in a range of 0.15 mm to 1 mm.

5. The display panel according to claim 3, characterized in that: The thickness of the first shielding protective film ranges from 0.06 mm to 0.2 mm; The thickness of the second shielding protection film is in the range of 0.06 mm to 0.2 mm.

6. The display panel according to claim 3, characterized in that: The distance between the edge of the first ink shielding portion away from the first central covering portion and the edge of the main body ink close to the central area is greater than or equal to 0.5 mm; A distance between an edge of the first ink shielding portion away from the first central covering portion and an edge of the main body ink away from the central area is greater than or equal to 0.5 mm.

7. The display panel according to claim 1, characterized in that: The thickness of the suspended portion ranges from 0.06 mm to 0.2 mm.

8. The display panel according to claim 1, characterized in that: The shielding protective film is a polyethylene terephthalate shielding protective film and a polyethylene shielding protective film.

9. The display panel according to claim 1, characterized in that: The cover plate includes a glass cover plate.