CN217767141U - Improved structure of protective panel frame sticker of electronic paper display module - Google Patents

Abstract

An improved structure of a protection panel frame sticker of an electronic paper display module comprises the electronic paper display module; a surface cover plate; a Chinese character 'kou' double faced adhesive tape; and an optical conditioning sheet comprising at least one haze surface; the square double-faced adhesive tape and the optical adjusting sheet are arranged between the electronic paper display module and the surface cover plate, the optical adjusting sheet is arranged in the inner frame range of the square double-faced adhesive tape, four sides of the electronic paper display module and four sides of the surface cover plate are bonded together by the square double-faced adhesive tape, the optical adjusting sheet is fixed between the electronic paper display module and the surface cover plate, and the optical interference phenomenon generated on the display surface of the electronic paper display module is avoided by arranging the optical adjusting sheet.

Description

Improved structure of protective panel frame sticker of electronic paper display module

Technical Field

The utility model relates to a protection panel frame pastes structure of electronic paper display module especially indicates a protection panel frame pastes structure that can avoid producing the electronic paper display module of optical interference phenomenon at electronic paper display module's display surface.

Background

Electronic paper displays have the advantages of flexibility, wide viewing angle, light weight, high resolution, high contrast, indoor and outdoor readability, and low power consumption, and thus have been widely used in various electronic devices due to rapid development in recent years; since the display surface of the electronic paper is easily scratched or damaged during use, a protection panel (Cover Lens) needs to be disposed on the electronic paper to ensure the service life of the product.

At present, the electronic paper and the protection panel are attached in a full-plane attachment mode and a frame attachment mode. The full-plane laminating technology is characterized in that an adhesive layer is coated on the surface of the electronic paper and is pressed and bonded with the protective cover plate, and the middle part of the electronic paper is in a vacuum state, so that the reflection between the display surface of the electronic paper and the protective cover plate can be reduced, the screen looks more transparent, and the electronic paper module can be tightly combined with the protective cover plate to obtain the advantage of strength improvement; although the all-plane laminating mode has many advantages, the laminating technology is difficult to achieve, so that the yield is relatively low, reworking (reworking) cannot be performed as long as laminating flaws, OCR glue leakage or ultraviolet curing unevenness occur in the laminating process, loss and scrapping of the electronic paper and the protective cover plate are caused, and the processing cost is increased.

The other frame pasting mode is to use a square double-sided adhesive tape to adhere and fix the four edges of the electronic paper and the protective cover plate together, which has the advantages of simple processing technology and low cost, but because an air layer (air gap) exists between the surface of the electronic paper and the protective cover plate, optical interference phenomena such as Newton rings, glare and the like are easily generated after light is refracted, and the display effect is greatly reduced.

SUMMERY OF THE UTILITY MODEL

The disappearance to traditional electronic paper and protection panel laminating technology, the utility model provides a modified electronic paper display module's protection panel frame pastes structure mainly sets up an optical adjustment piece between the electronic paper display module of frame subsides combination and surface cover plate to avoid producing the optical interference phenomenon at electronic paper display module's display surface, simultaneously must laminate processing technology simultaneously and simplify and low cost's advantage.

In order to achieve the above object, the utility model provides an improved structure of a protection panel frame sticker of an electronic paper display module, which comprises an electronic paper display module; a surface cover plate, on the peripheral edge zone of its bottom surface a decorative frame formed from opaque or low-transmittance material is set; the range of an inner frame of the double-sided adhesive tape is equal to the range of the display surface of the electronic paper display module; the specification size range of the optical adjusting sheet is smaller than or equal to the range of the inner frame of the square double-sided adhesive tape, the thickness of the optical adjusting sheet is the same as that of the square double-sided adhesive tape, and the optical adjusting sheet comprises at least one haze surface; the square double-faced adhesive tape and the optical adjusting sheet are arranged between the electronic paper display module and the surface cover plate, the optical adjusting sheet is arranged in the range of an inner frame of the square double-faced adhesive tape, four sides of the electronic paper display module and four sides of the surface cover plate are bonded together by the square double-faced adhesive tape, the optical adjusting sheet is fixed between the electronic paper display module and the surface cover plate, and the optical adjusting sheet is arranged to avoid optical interference phenomena such as Newton rings and the like in the range of a display surface of the electronic paper display module.

The material of the surface cover plate is selected from one of glass, polymethyl methacrylate (PMMA), polycarbonate (PC), polyester (PET), cyclic Olefin Copolymer (COC), and Cyclic Olefin Polymer (COP), but the implementation range is not limited to the above materials.

The haze surface of the optical adjustment sheet is a roughened surface, a plurality of fine pits are uniformly distributed on the haze surface, the depth range of the fine pits is between 0.5 [ mu ] m and 10 [ mu ] m, and the distance range between every two adjacent fine pits is between 1 [ mu ] m and 20 [ mu ] m.

Other features and functions of the present invention will be apparent to those skilled in the art from the following detailed description, which, taken in conjunction with the annexed drawings, discloses a preferred embodiment of the present invention.

Drawings

Fig. 1 is a perspective view illustrating the separation of the components of the present invention.

Fig. 2 is a schematic side sectional view of the component assembly of the present invention.

Fig. 3 is a partial enlarged view of fig. 2 at the point C, showing a haze surface having a single face on the optical conditioning sheet.

FIG. 4 is a partial enlarged view of FIG. 2 at point C showing a double-sided haze surface on an optical conditioning sheet.

Symbolic illustration in the drawings:

10. an electronic paper display module;

10A display surface;

20. a surface cover plate;

21. decorating the frame;

30. a square double-sided adhesive tape;

31. an inner frame range;

40. an optical adjustment sheet;

41. a haze surface.

Detailed Description

Preferred embodiments of the present invention are described in the accompanying drawings, wherein, in order to provide clearer descriptions and easier understanding of the technical features of the present invention, the parts in the drawings are not drawn according to relative dimensions, and some dimensions have been exaggerated compared with other relevant dimensions; irrelevant details are not fully drawn for the sake of brevity.

As shown in fig. 1 to fig. 3, the protection panel frame paste modified structure of the electronic paper display module of the present invention comprises an electronic paper display module 10, a surface cover plate 20, a Chinese character kou double faced adhesive tape 30 and an optical adjustment sheet 40.

The electronic paper display module 10 is a reflective display with low power consumption and flexibility, and displays an image signal on the display surface 10A of the electronic paper display module as an image frame by using an electrophoretic technology or a cholesteric liquid crystal technology.

The surface cover plate 20 is a high light transmittance thin plate having excellent mechanical strength, such as polymethyl methacrylate (PMMA); in addition, a decorative frame 21 is disposed at the peripheral edge region of the bottom surface of the surface cover plate 20, and the decorative frame 21 is an opaque or low-transmittance thin film layer made of a non-conductive material, for example, a low-transmittance thin film layer formed by printing or coating ink or a photoresist material on the peripheral edge portion of the bottom surface of the surface cover plate 20.

The inner frame area 31 of the square double-sided tape 30 is approximately equal to the display area 10A of the electronic paper display module.

The specification and size range of the optical adjusting sheet 40 is smaller than or equal to the size of the inner frame range of the square double-sided adhesive tape, and the thickness of the optical adjusting sheet is substantially the same as that of the square double-sided adhesive tape 30; the optical adjustment sheet 40 comprises at least one haze surface 41, fig. 3 shows that the optical adjustment sheet 40 has a single-sided haze surface 41, and fig. 4 shows that the optical adjustment sheet 40 has a double-sided haze surface 41; the light passing through the optical adjusting sheet 40 can generate a diffusion (glare) phenomenon by means of the surface with the Haze (Haze), so that the effects of anti-Newton ring and anti-glare are achieved; wherein the haze surface 41 is a roughened surface, a plurality of fine pits are uniformly distributed on the roughened surface, the depth range of the fine pits is between 0.5 mu m and 10 mu m, and the distance range between every two adjacent fine pits is between 1 mu m and 20 mu m; further, the distribution density of the fine pits and the depth difference of the pits can be controlled to adjust the reflectivity and light transmittance of the optical adjustment sheet 40, so as to obtain the optical effects of anti-newton ring and anti-glare.

When the above components are combined, the square double-sided adhesive tape 30 and the optical adjustment sheet 40 are disposed between the electronic paper display module 10 and the surface cover plate 20, the optical adjustment sheet 40 is installed in the inner frame range 31 of the square double-sided adhesive tape 30, four sides of the electronic paper display module 10 and the surface cover plate 20 are bonded together by means of the square double-sided adhesive tape 30, and the optical adjustment sheet 40 is fixed between the electronic paper display module 10 and the surface cover plate 20, thereby avoiding the generation of optical interference phenomena such as newton rings in the range of the display surface 10A of the electronic paper display module, and simultaneously achieving the advantages of simplified bonding process and low cost; in addition, the peripheral circuit area of the combined double-sided adhesive tape 30 and the electronic paper display module 10 is just located below the decorative frame 21 of the surface cover plate 20 and is shielded by the decorative frame 21, so that the appearance of the whole device is more attractive.

Although the present invention has been fully described in connection with the embodiments with reference to the accompanying drawings, it is to be understood that the foregoing embodiments are merely illustrative of further embodiments, and that the present invention is not limited thereto, since various changes and modifications will become apparent to those skilled in the art, and it is intended that such changes and modifications be included within the scope of the present invention as defined by the appended claims.

Claims (4)

1. The utility model provides a protection panel frame pastes improvement structure of electronic paper display module which characterized in that contains:

an electronic paper display module;

a surface cover plate, a decorative frame formed by opaque or low light transmittance material is arranged at the peripheral edge region of the bottom surface of the surface cover plate;

the range of an inner frame of the double-sided adhesive tape is equal to the range of the display surface of the electronic paper display module; and

the specification size range of the optical adjusting sheet is less than or equal to the inner frame range of the square double-sided adhesive tape, the thickness of the optical adjusting sheet is the same as that of the square double-sided adhesive tape, and the optical adjusting sheet comprises at least one haze surface; the Chinese character 'kou' shaped double-sided adhesive tape and the optical adjusting sheet are arranged between the electronic paper display module and the surface cover plate, the optical adjusting sheet is installed in the inner frame range of the Chinese character 'kou' shaped double-sided adhesive tape, the electronic paper display module is bonded with four sides of the surface cover plate through the Chinese character 'kou' shaped double-sided adhesive tape, and the optical adjusting sheet is fixed between the electronic paper display module and the surface cover plate.

2. The improved structure of a cover plate frame sticker of an electronic paper display module of claim 1, wherein the material of the surface cover plate is selected from one of glass, polymethyl methacrylate, polycarbonate, polyester, cyclic olefin copolymer, and cyclic olefin polymer.

3. The improved structure of a cover sticker for a protection panel of an electronic paper display module of claim 1, wherein the haze surface of the optical adjustment sheet is a roughened surface.

4. The improved structure of the cover sheet frame of the electronic paper display module according to claim 3, wherein the surface with the haze is formed by uniformly distributing a plurality of micro-pits on the surface of the surface, the depth of each micro-pit ranges from 0.5 μm to 10 μm, and the distance between every two adjacent micro-pits ranges from 1 μm to 20 μm.

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