JP3247573U - Improved e-paper display module stack structure - Google Patents

Abstract

An electronic paper display module stack structure is provided.
[Solution] The electronic paper display module laminated structure includes an electronic paper display module 10, a mouth-shaped double-sided tape 30, a front cover plate 20, an adhesive layer 60, and a support layer 50. The electronic paper display module has an image display screen 11 on the front side. The mouth-shaped double-sided tape is disposed on the front side of the electronic paper display module, and the inner frame edge of the mouth-shaped double-sided tape is tangentially fitted into the outer edge of the image display screen, and a decorative frame 21 formed of an opaque or low light transmittance material is provided in the peripheral edge area on the bottom side of the front cover plate, and the inner frame edge of the decorative frame is tangentially fitted into the inner frame edge of the mouth-shaped double-sided tape. The adhesive layer is disposed on the rear side of the electronic paper display module, and the support layer is laminated with the adhesive layer.
[Selected Figure] Figure 1

Description

This invention relates to the structure of an electronic paper display module, in particular to a type of electronic paper display module stacking structure that can improve the structural stability.

Electronic paper displays have the advantages of analog paper characteristics and low power consumption, and have been widely used in mobile electronic devices in recent years. However, when used, the display surface of the electronic paper is easily damaged by collisions and scratches, so a protective panel (Cover Lens) is usually provided on the display surface of the electronic paper. It is mainly done by coating an adhesive layer on the surface of the electronic paper and pressing the protective cover plate together. The central vacuum state can reduce the reflection between the display surface of the electronic paper and the protective cover, making the screen look more transparent, and the electronic paper module also has the advantage of increasing strength through close combination with the protective cover. Although the full-plane lamination method has many advantages, the yield is relatively low due to the difficulty of the lamination technology, and as long as lamination defects, OCR adhesive leakage, or ultraviolet curing unevenness occur in the lamination process, rework will be impossible, resulting in loss or disposal of the electronic paper and protective cover, and increasing processing costs. In addition, the cost of electronic paper components is high, and if they are damaged during the lamination process, the losses will be enormous. In particular, the larger the size, the more difficult the lamination process becomes, making the shortcomings of the full-plane lamination method more and more serious.

The main purpose of this invention is to improve the lack of a comprehensive lamination method in the past and reduce product yield and production costs by using a mouth-shaped double-sided tape to glue together the four sides of the electronic paper and protective panel, simplifying the lamination processing technology and reducing production costs. The electronic paper display module is made of multi-layer film plastic with low deformation resistance. If only the part between the electronic paper display module and the protective panel is pasted (framed), the electronic paper display module will be easily affected by temperature changes and external forces and will be easily warped and deformed, damaging the laminated structure.

To overcome the shortcomings of the conventional electronic paper and protective panel lamination process, the present invention provides an improved electronic paper display module lamination structure, which can enhance the mechanical strength of the electronic paper display module, prevent deformation of the plate body, and then improve the stability of the frame combination structure.

To achieve the above objective, the present invention provides an improved electronic paper display module stack structure, which includes an electronic paper display module, a double-sided tape, a surface cover plate, an adhesive layer, and a support layer.
The electronic paper display module has an image display screen on the front surface thereof,
The mouth-shaped double-sided tape is disposed on the front surface of the electronic paper display module, and an inner frame edge of the mouth-shaped double-sided tape is fitted tangentially to an outer edge of the image display screen;
The surface cover plate is provided with a decorative frame formed of an opaque or low light transmittance material in the peripheral edge region of its bottom surface, and the inner frame edge of the decorative frame is tangentially fitted into the inner frame edge of the mouth-shaped double-sided tape;
The surface cover plate is provided with a decorative frame made of an opaque or low light transmittance material on the peripheral portion of its bottom surface, and the inner frame edge of the decorative frame is tangentially fitted into the inner frame edge of the mouth-shaped double-sided tape, and the adhesive layer is disposed on the rear surface of the electronic paper display module;
The support layer is laminated with the adhesive layer;
The electronic paper display module is laminated to the four sides of the surface cover plate using a mouth-shaped double-sided tape, and the adhesive layer is used to attach the electronic paper display module and the support layer together, thereby enhancing the mechanical strength of the electronic paper display module, preventing deformation of the plate body, and improving the stability of the laminated structure.

The material of the surface cover plate is selected from glass, polymethyl methacrylate (PMMA), polycarbonate (PC), polyester (PET), cyclic olefin copolymer (COC), and cyclic olefin polymer (COP), but the scope of application is not limited to the aforementioned materials.

The support layer is selected from a glass plate, a metal plate, or a plastic plate. Preferably, the plastic plate has a characteristic of high mechanical strength, and the material is selected from polycarbonate (PC), polyester (PET), polypropylene (PP), ABS resin, polyamide resin (PA), or polyethylene (PE), but the scope of implementation is not limited to the aforementioned materials.

In one embodiment, the adhesive layer is an OCA adhesive layer that is completely covered on the back surface of the electronic paper display module.

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

In one embodiment, the electronic paper display module also includes an optical adjustment piece disposed between the electronic paper display module and the surface cover plate and located within the inner frame range of the mouth-shaped double-sided tape. The optical adjustment piece includes at least one haze surface, and the optical adjustment piece is used to prevent optical interference phenomena from occurring on the image display screen of the electronic paper display module.

This invention can enhance the mechanical strength of the electronic paper display module, prevent deformation of the plate body, and improve the stability of the laminated structure.

FIG. 2 is a three-dimensional schematic diagram of component separation according to the first embodiment of the present invention; FIG. 2 is a schematic side sectional view of a component assembly according to the first embodiment of the present invention; FIG. 2 is a three-dimensional schematic diagram of component separation according to another embodiment of the present invention; FIG. 2 is a schematic side sectional view of an assembly of components according to another embodiment of the present invention; FIG. 5 is a partial enlarged view of a portion C in FIG. 4, showing a haze surface having one side on the optical adjustment sheet.

In the accompanying drawings, in order to more clearly illustrate and facilitate understanding of the technical characteristics of the present invention as described in the preferred embodiment of the present invention, each part of the drawings is not drawn according to its relative dimensions, and some dimensions are exaggerated compared to other related scales. Also, irrelevant details are not fully drawn in order to simplify the diagram. Other functional and technical features of the present invention will be further elucidated below, and those skilled in the art in the field can realize the present invention by carefully reading the description in this specification.

As shown in Figures 1 and 2, a more preferred embodiment of the present invention is shown, in which the electronic paper display module laminate structure includes an electronic paper display module 10, a surface cover plate 20, a mouth-shaped double-sided tape 30, a support layer 50 and an adhesive layer 60.

The electronic paper display module 10 is a flexible, reflective display that consumes low power and uses electrophoresis and cholesterol-type liquid crystal technology to display image signals on the image display screen 11 on the front of the electronic paper display module.

The surface cover plate 20 is a thin plate with excellent mechanical strength and high light transmittance, such as glass. A decorative frame 21 is arranged on the peripheral portion of the bottom surface of the surface cover plate 20, and the decorative frame 21 is an opaque or low light transmittance film layer made of a non-conductive material, for example, a low light transmittance film layer formed by printing or applying ink or a photoresist material around the bottom surface of the surface cover plate 20.

The size of the inner frame range 31 of the mouth-shaped double-sided tape 30 is approximately equal to the range of the image display screen 11 of the electronic paper display module. The mouth-shaped double-sided tape 30 is placed between the electronic paper display module 10 and the surface cover plate 20, and the inner frame edges of the mouth-shaped double-sided tape are fitted into the outer edges of the image display screen 11 of the electronic paper display module, and the inner frame edges of the decorative frame 21 of the surface cover plate are cut and fitted in. The mouth-shaped double-sided tape 30 laminates the four sides of the electronic paper display module 10 and the surface cover plate 20 together.

The support layer 50 is a plate with excellent mechanical strength, such as a glass plate, a metal plate, or a plastic plate.

The adhesive layer 60 is disposed on the rear surface of the electronic paper display module 10, and in this embodiment, the adhesive layer 60 is a double-sided adhesive layer with a dot pattern. In other possible embodiments, the adhesive layer 60 may be a double-sided adhesive layer arranged in a strip shape, or an OCA adhesive layer completely covered on the rear surface of the electronic paper display module 10. The adhesive layer 60 is disposed between the electronic paper display module 10 and the support layer 50, so that the four sides of the electronic paper display module 10 and the support layer 50 are laminated to each other. This greatly enhances the mechanical strength of the electronic paper display module 10, effectively prevents problems caused by deformation of the plate body, and improves the stability of the frame attachment process structure.

Figures 3 to 5 show another preferred embodiment of the electronic paper display module laminated structure of the present invention, the components and laminated structure of which are basically the same as those of the above-mentioned embodiment, but the main difference is that an optical adjustment piece 40 is added, and the two identical parts are not repeated in this specification. In this embodiment, the specification size range of the optical adjustment piece 40 is less than or equal to the size of the inner frame of the mouth-shaped double-sided tape, and its thickness is approximately the same as that of the mouth-shaped double-sided tape 30. The optical adjustment piece 40 has a haze surface 41. The optical adjustment piece 40 is installed in the inner frame range 31 of the mouth-shaped double-sided tape 30 between the electronic paper display module 10 and the surface cover plate 20, and is located directly in front of the image display screen 11. Due to the preset haze surface on the optical adjustment piece 40, the light passing through the optical adjustment piece 40 will produce a diffuse reflection phenomenon, achieving the effects of anti-Newton rings and anti-glare, and improving the visibility of the image display screen 11.

Although the present invention has been fully described in specific embodiments with reference to the drawings, the above embodiments are only for the purpose of easily explaining the examples, and the present invention embodiments are not limited to these descriptions. Since the present invention can actually achieve the desired functions and purposes, and can be implemented by those skilled in the art based on the above detailed description, the changes in the equivalent structure from the above examples still do not deviate from the scope of the rights of the present invention. In other words, any changes or modifications made in the same creative spirit related to the present invention should be included in the scope of protection of the present invention.

REFERENCE SIGNS LIST 10 Electronic paper display module 11 Image display screen 20 Surface cover plate 21 Decorative frame 30 Mouth-shaped double-sided tape 31 Inner frame area 40 Optical adjustment piece 41 Haze surface 50 Support layer 60 Adhesive layer

Claims (8)

An improved electronic paper display module laminate structure, comprising an electronic paper display module, a double-sided tape, a surface cover plate, an adhesive layer, and a support layer;
the electronic paper display module has an image display screen on its front surface;
The mouth-shaped double-sided tape is disposed on the front surface of the electronic paper display module, and an inner frame edge of the mouth-shaped double-sided tape is fitted tangentially to an outer edge of the image display screen;
The surface cover plate is provided with a decorative frame formed of an opaque or low light transmittance material in the peripheral edge region of its bottom surface, and the inner frame edge of the decorative frame is tangentially fitted into the inner frame edge of the mouth-shaped double-sided tape;
The surface cover plate has a decorative frame formed of an opaque or low light transmittance material on the peripheral portion of its bottom surface, and the inner frame edge of the decorative frame is fitted tangentially into the inner frame edge of the mouth-shaped double-sided tape;
the adhesive layer is disposed on a rear surface of the electronic paper display module;
The improved electronic paper display module laminate structure, wherein the support layer is laminated with the adhesive layer. The improved electronic paper display module stack structure of claim 1, characterized in that the material of the surface cover plate is selected from glass, polymethyl methacrylate, polycarbonate, polyester, cyclic olefin copolymer, and cyclic olefin polymer. The improved electronic paper display module laminate structure of claim 1, characterized in that the support layer is selected from a glass plate, a metal plate, or a plastic plate. The improved electronic paper display module laminate structure according to claim 3, characterized in that the plastic material is selected from polycarbonate, polyester, polypropylene, ABS resin, polyamide resin, and polyethylene. The improved electronic paper display module laminate structure of claim 1, characterized in that the adhesive layer is an OCA adhesive layer that is comprehensively covered on the back surface of the electronic paper display module. The improved electronic paper display module laminate structure of claim 1, characterized in that the adhesive layer is a double-sided adhesive layer disposed on the back surface of the electronic paper display module in the form of a frame or strip sticker. The improved electronic paper display module laminate structure of claim 1, characterized in that the optical adjustment piece is disposed between the electronic paper display module and the surface cover plate, and is located within the inner frame range of the mouth-shaped double-sided tape. The improved electronic paper display module laminate structure of claim 7, characterized in that the optical adjustment piece has at least one haze surface.