Display electronic paper module and display equipment

Abstract

The utility model discloses a display electronic paper module and a display device, the display electronic paper module comprises an electronic paper film, a waterproof film and a shielding layer, the sub-paper film is divided into a display area, a boundary area and a non-display area from inside to outside in sequence; the waterproof film is arranged on the surface of the electronic paper film; and the shielding layer is arranged between the electronic paper film and the waterproof film and is used for shielding areas except the display area. According to the display electronic paper module, the shielding layer is additionally arranged between the electronic paper film and the waterproof film, so that edge sawteeth of the circular display area are simply and effectively removed, and the original display effect of the display area is not influenced; the shielding layer design can reduce the design and development difficulty and the manufacturing and processing cost; and the shielding layer covers the edge of the electronic paper film, so that the defect of abnormal display of the edge of the film can be improved, and the product yield is improved.

Description

Technical Field

[0001] The utility model relates to the field of display technology, and in particular to an electronic paper display module and a display device. Background Art

[0002] Electronic paper, also known as electronic ink screens, boasts exceptional features such as ultra-low power consumption, continuous display without power consumption, and eye protection, offering the same visual quality and experience as paper. Multiple black and white electronic particles are enclosed in a single ink sac. Electric current aligns these sacs to create electronic ink. Under the influence of positive and negative charges, these tiny ink sacs behave like liquids, forming various characters and patterns. This represents a new, "small and beautiful" display technology.

[0003] For circular electronic paper, since the pixel shape of the thin film transistor array glass used in the electronic paper is regularly designed, it is inevitable that it cannot perfectly meet the circular boundary requirements of the display area. Therefore, there are jagged edges (protrusions or depressions, see attached) on the edges of the circular display area. Figure 3 ) problem.

[0004] Currently, there are two main ways to solve the above problems:

[0005] 1. Reduce the design size of thin-film transistor array pixels to weaken the edge jagged effect. The disadvantage of this method is that it increases the difficulty of thin-film transistor array glass design and development and manufacturing;

[0006] 2. The edge-shaped TFT array pixel design allows the pixel edge to perfectly match the display area's arc. However, due to process limitations on the minimum pixel size, not all pixels can achieve this. As a result, some arcs still have jagged edges. Furthermore, the irregular pixel shape increases the design difficulty of the TFT array glass.

[0007] Therefore, how to achieve a circular display without distortion and a smooth transition without jagged edges in the display area has become a problem that the industry urgently needs to solve. Utility Model Content

[0008] The purpose of the present utility model is to provide an electronic paper display module and a display device. By adding a shielding layer between the electronic paper film and the waterproof film, the edge of the circular display area is de-serrated, which effectively improves the effect of the circular display and can reduce the difficulty of design and development and the manufacturing and processing costs.

[0009] The purpose of this utility model is achieved by the following technical solutions:

[0010] An electronic paper display module, comprising:

[0011] The electronic paper film is divided into a display area, a border area and a non-display area from the inside to the outside;

[0012] A waterproof film is provided on the surface of the electronic paper film;

[0013] The shielding layer is located between the electronic paper film and the waterproof film and is used to shield the area except the display area.

[0014] In some embodiments, the shielding layer is printed on the upper surface of the electronic paper film; or, the shielding layer is printed on the lower surface of the waterproof film.

[0015] In some embodiments, the shielding layer is made of an independent material layer.

[0016] In some embodiments, the shielding area of ​​the shielding layer is in a ring structure, with an inner ring size smaller than or equal to an edge size of the display area and an outer ring size larger than or equal to an edge size of the boundary area.

[0017] In some embodiments, the non-shielding area of ​​the shielding layer is a hollow area, or the non-shielding area of ​​the shielding layer is transparent.

[0018] In some embodiments, the shape of the electronic paper film includes but is not limited to a circle.

[0019] In some embodiments, the electronic paper display module further includes:

[0020] Thin film transistor array glass, arranged on a side of the electronic paper film away from the waterproof film;

[0021] The driving chip and the flexible circuit board are both arranged on the thin film transistor array glass, wherein the driving chip is used to drive voltage and signals to the thin film transistor array glass, so that the electronic paper module can display different colors and patterns.

[0022] In some embodiments, edge sealing glue is provided on the thin film transistor array glass to seal the edges of the electronic paper film and the waterproof film.

[0023] A display device includes the above-mentioned electronic paper display module.

[0024] In some embodiments, the display device includes but is not limited to a watch dial.

[0025] Compared with the prior art, the beneficial effects of the present invention include at least:

[0026] 1. By adding a shielding layer between the electronic paper film and the waterproof film, the edge jaggedness of the circular display area is simply and effectively removed without affecting the original display effect of the display area.

[0027] 2. The shielding layer design can reduce the difficulty of design and development and the manufacturing and processing costs.

[0028] 3. The shielding layer covers the edge of the electronic paper film, which can also improve the abnormal display of the edge of the film and improve the product yield.

[0029] 4. The ultra-thin shielding layer does not increase the thickness of the module itself and can match the existing application structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural diagram of the electronic paper display module of the present invention.

[0031] Figure 2 This is a schematic diagram of the relative positions of the shielding layer and the electronic paper film.

[0032] Figure 3 FIG. 1 is a schematic diagram of the jagged edges of an existing circular display area.

[0033] In the figure: 1. Electronic paper film; 11. Display area; 12. Border area; 13. Non-display area; 2. Waterproof film; 3. Shielding layer; 4. Thin-film transistor array glass; 5. Driver chip; 6. Flexible circuit board; 7. Edge sealing glue. DETAILED DESCRIPTION

[0034] Example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided to make this disclosure more comprehensive and complete and to fully convey the concepts of the example embodiments to those skilled in the art. Identical reference numerals in the figures denote identical or similar structures, and thus repeated descriptions thereof will be omitted.

[0035] The words expressing positions and directions described in this utility model are all explained with reference to the accompanying drawings as examples, but they can be changed as needed, and all such changes are included in the protection scope of this utility model.

[0036] See also Figure 1 and Figure 2 As shown, the utility model discloses an electronic paper display module, which includes an electronic paper film 1, a waterproof film 2 and a shielding layer 3.

[0037] The electronic paper film 1 is divided into a display area 11, a border area 12 and a non-display area 13 from the inside to the outside (see Figure 2The display area 11 corresponds to the pixel array area of the thin film transistor array glass 4, and is a main functional area for displaying colors and patterns. The boundary area 12 is a transition area between the display area 11 and the non-display area 13, and can be observed by a user. The non-display area 13 mainly serves to maintain a certain width and improve water resistance to improve reliability and service life, and can also be observed by a user.

[0038] In the present application, the shape of the electronic paper film 1 is preferably circular to meet the display requirements of mobile phone dials, instrument dials and other products. Of course, in some other embodiments, the shape of the electronic paper film 1 can also be oval, fan-shaped, polygonal or other shapes, and the specific shape is not limited.

[0039] The waterproof film 2 is arranged on the surface of the electronic paper film 1 (see Figure 1 ), which can be made of a high polymer plastic film, and is used to isolate the penetration of water vapor, oxygen, oil stains and other substances to prevent damage to the electronic paper film 1, thereby prolonging the service life of the electronic paper film 1.

[0040] The shielding layer 3 is arranged between the electronic paper film 1 and the waterproof film 2 (see Figure 1 ), which can be processed by printing, coating, sputtering or other processes on the upper surface of the electronic paper film 1 or the lower surface of the waterproof film 2, or can be made of an independent material layer. As a preferred embodiment, the shielding layer 3 is implemented by a super-thin material layer (for example, the thickness is 5-20 um), which does not increase the thickness of the display electronic paper module itself and can match the existing application structure.

[0041] In the present application, the shielding layer 3 is used to shield the area other than the display area 11 (see Figure 2 ), such as the boundary area 12 or the boundary area 12 and the non-display area 13, so as to achieve the effect of removing the sawtooth edges of the circular display area 11.

[0042] As an example, the shielding area of the shielding layer 3 has a ring structure corresponding to the electronic paper film 1. The inner ring size of the shielding area is less than or equal to the edge size of the display area 11, so as to shield the sawtooth edges of the original circular display area 11 without affecting the original display effect of the display area 11. The outer ring size of the shielding layer 3 is greater than or equal to the edge size of the boundary area 12, and is preferably not less than the edge size of the non-display area 13, so as to improve the display abnormality of the film edge and improve the product yield. It should be noted that the above shielding area is non-transparent, and the color is determined according to the specific application scenario, which is usually matched with the normal display color of the electronic paper film 1. The non-shielding area of the shielding layer 3 can be a hollow area or transparent, which is determined by the selection scheme and manufacturing process of the shielding layer 3, and has no effect or negligible effect on the display area 11.

[0043] In summary, the display electronic paper module removes the edge sawtooth of the circular display area 11 simply and effectively by adding the shielding layer 3 between the electronic paper film 1 and the waterproof film 2, and can reduce the difficulty of design development and manufacturing cost. On the other hand, the shielding layer 3 covers the edge of the electronic paper film 1, and can also improve the display abnormality of the film edge, and improve the product yield.

[0044] Referring to Figure 1 As shown, the display electronic paper module further comprises a thin film transistor array glass 4, a driving chip 5 and a flexible circuit board 6. The thin film transistor array glass 4 is arranged on the side of the electronic paper film 1 away from the waterproof film 2, and the driving chip 5 and the flexible circuit board 6 are arranged on the thin film transistor array glass 4.

[0045] In the display electronic paper module, the electronic ink particles of different colors in the electronic paper film 1 have the characteristics of moving up and down in the direction perpendicular to the plane of the electronic paper film 1 under the action of the electric field, and the color of the film can be changed when the particles of different colors move to the top of the electronic paper film 1. When the flexible circuit board 6 is powered on, the driving chip 5 gives a driving voltage and a signal to the thin film transistor array glass 4, and a parallel plate capacitor controlled independently can be formed between each pixel point of the thin film transistor array glass 4 and the built-in metal oxide layer of the electronic paper film 1. By configuring different voltage waveforms, the driving chip 5 can control the display electronic paper module to realize the display of different colors and patterns.

[0046] Further, the edge of the electronic paper film 1 and the edge of the waterproof film 2 are provided with a sealing glue 7 and are sealed and connected with the thin film transistor array glass 4, so as to isolate the water vapor penetration and ensure the long-term use stability of the display electronic paper module.

[0047] The utility model also discloses a display device, for example, mobile phone dial, instrument dial and the like, this kind of display device includes the display electronic paper module described above, so that the circular display area 11 of display device has no sawtooth phenomenon, and does not affect the original display effect.

[0048] Although the embodiments of the utility model have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary, and cannot be understood as limiting the utility model, and the person skilled in the art can change, modify, replace and modify the above-mentioned embodiments without departing from the principles and purposes of the utility model in the range of the utility model, all these changes should belong to the protection scope of the utility model claim.

Claims

1. A display electronic paper module, characterized in that: include: The electronic paper film (1) is divided into a display area (11), a boundary area (12) and a non-display area (13) from the inside to the outside; A waterproof film (2) is provided on the surface of the electronic paper film (1); A shielding layer (3) is located between the electronic paper film (1) and the waterproof film (2) and is used to shield an area other than the display area (11).

2. The electronic paper display module according to claim 1, characterized in that: The shielding layer (3) is printed on the upper surface of the electronic paper film (1); or, the shielding layer (3) is printed on the lower surface of the waterproof film (2).

3. The electronic paper display module according to claim 1, wherein: The shielding layer (3) is made of an independent material layer.

4. The electronic paper display module according to claim 1, wherein: The shielding area of ​​the shielding layer (3) is in an annular structure, with an inner ring size being smaller than or equal to an edge size of the display area (11), and an outer ring size being larger than or equal to an edge size of the boundary area (12).

5. The electronic paper display module according to claim 1, characterized in that: The non-shielding area of ​​the shielding layer (3) is a hollow area, or the non-shielding area of ​​the shielding layer (3) is transparent.

6. The electronic paper display module according to any one of claims 1 to 5, characterized in that: The shape of the electronic paper film (1) includes but is not limited to a circle.

7. The electronic paper display module according to claim 1, characterized in that: Also includes: Thin film transistor array glass (4), arranged on a side of the electronic paper film (1) away from the waterproof film (2); A driving chip (5) and a flexible circuit board (6) are both arranged on the thin film transistor array glass (4), wherein the driving chip (5) is used to drive voltage and signals to the thin film transistor array glass (4), so that the display electronic paper module can display different colors and patterns.

8. The electronic paper display module according to claim 7, characterized in that: An edge-sealing adhesive (7) for sealing the edge of the electronic paper film (1) and the edge of the waterproof film (2) is provided on the thin film transistor array glass (4).

9. A display device, characterized in that: The electronic paper display module comprises the electronic paper display module according to any one of claims 1 to 8.

10. The display device according to claim 9, wherein The display device includes but is not limited to a watch dial.

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