Improved electronic paper display module fitting structure

Abstract

An improved electronic paper display module fitting structure comprises an electronic paper display module with an image display screen on the front side; the square-shaped double-faced adhesive tape is arranged on the electronic paper display module, so that the edge of an inner frame of the square-shaped double-faced adhesive tape is flush with and attached to the edge of the outer side of the image display screen; a decorative frame is arranged on the bottom surface of the surface cover plate, and the inner frame edge of the decorative frame is trimmed and attached to the inner frame edge of the square double-faced adhesive tape; the cementing layer is arranged on the back surface of the electronic paper display module; the supporting layer is attached to the cementing layer; the electronic paper display module and the four edges of the surface cover plate are attached together through the square-shaped double-faced adhesive tape, the electronic paper display module and the supporting layer are attached into a whole through the cementing layer, and therefore the mechanical strength of the electronic paper display module is enhanced, plate body deformation is prevented, and the stability of the attaching structure is improved.

Description

Technical Field

[0001] The utility model relates to an electronic paper display module structure, in particular to an electronic paper display module laminating structure capable of improving structural stability. Background Art

[0002] Electronic paper displays have advantages such as paper-like properties and low power consumption. In recent years, they have been widely used in portable electronic devices. However, when in use, the electronic paper display surface is easily damaged by collisions, scratches, etc., so a protective panel is usually set on the electronic paper display surface. Lens), mainly coating an adhesive layer on the surface of the electronic paper and pressurizing and bonding it with the protective cover. Since the middle is in a vacuum state, the reflection between the electronic paper display surface and the protective cover can be reduced, making the screen look more transparent. The electronic paper module will also gain the benefit of increased strength due to its close combination with the protective cover. Although the full-plane bonding method has many advantages, the bonding technology is difficult, so the yield rate is relatively low. During the bonding process, as long as bonding defects, OCR glue leakage or uneven UV curing occur, it will lead to the inability to rework, resulting in the loss and scrapping of the electronic paper and the protective cover, resulting in an increase in processing costs. In addition, the cost of electronic paper components is high. If they are damaged during the bonding process, the loss will be very large. In particular, the larger the size, the more difficult the bonding process is, and the more serious the shortcomings of the full-plane bonding method are.

[0003] In order to improve the defects of the traditional comprehensive bonding method, improve product yield and reduce production costs, the currently known improvement plan is to use a U-shaped double-sided tape to bond the electronic paper and the four sides of the protective panel together, thereby simplifying the bonding process and reducing production costs; and the electronic paper display module is composed of a multi-layer thin film plastic, which has low deformation resistance. When only a part of the area between the electronic paper display module and the protective panel is bonded (frame bonding), the electronic paper display module is easily affected by temperature changes or external forces to produce warping and deformation, resulting in damage to the bonding structure. Utility Model Content

[0004] In order to overcome the deficiencies of the traditional electronic paper and protective panel bonding process, the utility model provides an improved electronic paper display module bonding structure, which can strengthen the mechanical strength of the electronic paper display module, prevent the plate from deforming, and thus improve the stability of the frame-sticker combination structure.

[0005] To achieve the above-mentioned purpose, the improved electronic paper display module bonding structure provided by the utility model comprises an electronic paper display module, the front face of which has an image display screen; a U-shaped double-sided adhesive tape, which is arranged on the front face of the electronic paper display module, the inner frame edge of the U-shaped double-sided adhesive tape is aligned with the outer edge of the image display screen; a surface cover plate, the peripheral edge area of ​​the bottom surface of which is provided with a decorative frame formed of opaque or low-transmittance material, the inner frame edge of the decorative frame is aligned with the inner frame edge of the U-shaped double-sided adhesive tape; a bonding layer, which is arranged on the back face of the electronic paper display module; and a supporting layer, which is bonded with the bonding layer; wherein the electronic paper display module and the four sides of the surface cover plate are bonded together by the U-shaped double-sided adhesive tape, and the electronic paper display module and the supporting layer are bonded together by the bonding layer, thereby reinforcing the mechanical strength of the electronic paper display module, preventing the plate body from deforming, and improving the stability of the bonding structure.

[0006] Among them, the material of the surface cover is selected from one of glass, polymethyl methacrylate (PMMA), polycarbonate (PC), polyester (PET), cycloolefin copolymer (COC), and cycloolefin polymer (COP), but the implementation scope is not limited to the aforementioned materials.

[0007] Wherein, the supporting layer is selected from a glass plate, a metal plate or a plastic plate; preferably, the plastic plate has the characteristic of high mechanical strength, and its material is selected from one of polycarbonate (PC), polyester (PET), polypropylene (PP), ABS resin, polyamide resin (PA) or polyethylene (PE), but the implementation scope is not limited to the aforementioned materials.

[0008] In one embodiment, the adhesive layer is an OCA adhesive layer that is fully covered on the back side of the electronic paper display module.

[0009] In one embodiment, the adhesive layer is a double-sided adhesive layer provided on the back side of the electronic paper display module in the form of a frame sticker or a strip sticker.

[0010] In one embodiment, it also includes an optical adjustment sheet, which is installed between the electronic paper display module and the surface cover plate and is located in the inner frame range of the U-shaped double-sided tape; wherein the optical adjustment sheet includes at least one haze surface, and the optical adjustment sheet is used to avoid optical interference on the image display screen of the electronic paper display module. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a three-dimensional schematic diagram of the separated components of the first embodiment.

[0012] Figure 2 It is a side sectional schematic diagram of the component assembly of the first embodiment.

[0013] Figure 3 It is a three-dimensional schematic diagram of the separated components of another embodiment.

[0014] Figure 4 It is a side sectional schematic diagram of a component assembly of another embodiment.

[0015] Figure 5 for Figure 4 The partial enlarged view at part C shows that the optical conditioning sheet has a single-sided haze surface.

[0016] In the figure:

[0017] 10 Electronic paper display module

[0018] 11 Image display screen

[0019] 20 Surface cover

[0020] 21 Decorative borders

[0021] 30 double-sided tape

[0022] 31 Inner frame range

[0023] 40 Optical adjustment sheet

[0024] 41. Fog surface

[0025] 50 Support layer

[0026] 60 glue layers. DETAILED DESCRIPTION

[0027] The attached figures describe the preferred embodiments of the present invention. In order to provide a clearer description and easier understanding of the technical features of the present invention, the various parts in the figures are not drawn according to their relative sizes, and some sizes have been exaggerated compared with other related scales; irrelevant details are not fully drawn in order to simplify the figures.

[0028] like Figure 1 and Figure 2 A preferred embodiment of the present invention is shown. The electronic paper display module bonding structure includes: an electronic paper display module 10 , a surface cover plate 20 , a double-sided tape 30 in a square shape, a support layer 50 and an adhesive layer 60 .

[0029] The electronic paper display module 10 is a reflective display with low power consumption and flexibility, and uses electrophoretic technology or cholesteric liquid crystal technology to display image signals as image frames on an image display screen 11 on the front of the electronic paper display module.

[0030] The surface cover 20 is a thin plate with excellent mechanical strength and high light transmittance, such as glass; in addition, a decorative frame 21 is provided on the four edge areas around the bottom surface of the surface cover 20. The decorative frame 21 is an opaque or low-transmittance film layer made of non-conductive material, for example, a low-transmittance film layer formed by printing or coating the peripheral part of the bottom surface of the surface cover 20 using ink or photoresist material.

[0031] The size of the inner frame range 31 of the U-shaped double-sided adhesive tape 30 is approximately equal to the range of the image display screen 11 of the aforementioned electronic paper display module; wherein, the U-shaped double-sided adhesive tape 30 is arranged between the electronic paper display module 10 and the surface cover 20, so that the inner frame edge of the U-shaped double-sided adhesive tape is respectively aligned with the outer edge of the image display screen 11 of the electronic paper display module, and is aligned with the inner frame edge of the decorative frame 21 of the surface cover, and the electronic paper display module 10 and the four sides of the surface cover 20 are adhered together by the U-shaped double-sided adhesive tape 30.

[0032] The support layer 50 is a plate with good mechanical strength, such as a glass plate, a metal plate or a plastic plate.

[0033] The adhesive layer 60 is arranged on the back side of the electronic paper display module 10. In the present embodiment, the adhesive layer 60 is a double-sided adhesive layer arranged in a U-shape. In other feasible embodiments, the adhesive layer 60 may also be a double-sided adhesive layer arranged in a strip form, or an OCA adhesive layer fully covering the back side of the electronic paper display module 10. The adhesive layer 60 is arranged between the electronic paper display module 10 and the supporting layer 50, thereby bonding the four sides of the electronic paper display module 10 and the supporting layer 50 together, thereby greatly reinforcing the mechanical strength of the electronic paper display module 10, effectively preventing problems derived from deformation of the board, and improving the stability of the frame bonding process structure.

[0034] Figures 3 to 5Another preferred embodiment of the electronic paper display module bonding structure of the utility model is shown. Its components and combined structure are substantially the same as those of the aforementioned embodiment, and the main difference is that an optical adjustment sheet 40 is added, and the same parts of the two are not repeated here; in this embodiment, the specification size range of the optical adjustment sheet 40 is less than or equal to the size of the inner frame range of the aforementioned U-shaped double-sided adhesive tape, and its thickness is substantially the same as the thickness of the U-shaped double-sided adhesive tape 30, and the optical adjustment sheet 40 includes a haze surface 41; the optical adjustment sheet 10 is installed in the inner frame range 31 of the U-shaped double-sided adhesive tape 30 between the electronic paper display module 10 and the surface cover plate 20, just in front of the image display screen 11, and the preset haze surface on the optical adjustment sheet 40 can cause the light passing through the optical adjustment sheet 40 to produce a diffuse reflection phenomenon, thereby achieving anti-Newton ring and anti-glare effects, so as to improve the visibility of the image display screen 11.

[0035] The above-described embodiments are only preferred embodiments for fully illustrating the present utility model, and the protection scope of the present utility model is not limited thereto. Equivalent substitutions or changes made by technicians in the technical field on the basis of the present utility model are all within the protection scope of the present utility model. The protection scope of the present utility model shall be subject to the claims.

Claims

1. An improved electronic paper display module bonding structure, characterized in that: Include: An electronic paper display module, the front side of which has an image display screen; A U-shaped double-sided adhesive tape is arranged on the front side of the electronic paper display module, and the inner frame edge of the U-shaped double-sided adhesive tape is cut and fitted with the outer edge of the image display screen; A surface cover plate, wherein a decorative frame formed of opaque or low-light-transmittance material is provided on the peripheral edge areas of the bottom surface thereof, and the inner frame edge of the decorative frame is cut and fitted with the inner frame edge of the square-shaped double-sided adhesive tape; an adhesive layer, which is disposed on the back side of the electronic paper display module; and A supporting layer is bonded to the adhesive layer.

2. The improved electronic paper display module bonding structure as claimed in claim 1, characterized in that: The material of the surface cover is selected from glass, polymethyl methacrylate, polycarbonate, polyester, cycloolefin copolymer or cycloolefin polymer.

3. The improved electronic paper display module bonding structure as claimed in claim 1, characterized in that: The support layer is selected from a glass plate, a metal plate or a plastic plate.

4. The improved electronic paper display module bonding structure as claimed in claim 3, characterized in that: The material of the plastic plate is selected from polycarbonate, polyester, polypropylene, ABS resin, polyamide resin or polyethylene.

5. The improved electronic paper display module bonding structure as claimed in claim 1, characterized in that: The adhesive layer is an OCA adhesive layer fully covering the back side of the electronic paper display module.

6. The improved electronic paper display module bonding structure as claimed in claim 1, characterized in that: The adhesive layer is a double-sided adhesive layer arranged on the back side of the electronic paper display module in the form of a frame sticker or a strip sticker.

7. The improved electronic paper display module bonding structure as claimed in claim 1, characterized in that: It also includes an optical adjustment sheet, which is installed between the electronic paper display module and the surface cover plate and is located in the inner frame range of the square-shaped double-sided adhesive.

8. The improved electronic paper display module bonding structure as claimed in claim 7, characterized in that: The optical conditioning sheet includes at least one haze surface.

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