Flexible electronic display equipment powered by light energy

Abstract

The utility model relates to a flexible electronic display device powered by light energy, which comprises a rear shell, an electronic ink display layer, a flexible circuit layer, a pressing frame and a front shell, and is characterized in that the electronic ink display screen is arranged on one side of the rear shell and is provided with a display surface and a back surface which are opposite along a first direction; the flexible circuit layer is arranged on the back surface of the electronic ink display screen; the pressing frame is arranged on one side of a display surface of the electronic ink screen, and the front shell is arranged on one side, deviating from the rear shell, of the pressing frame; wherein the electronic ink display screen comprises a transparent conductive layer, an electrophoretic display layer and a driving bottom plate which are sequentially laminated, electrophoretic liquid and a plurality of ink particles are arranged in the electrophoretic display layer, and the flexible circuit layer is arranged on the side, away from the transparent conductive layer, of the driving bottom plate; the driving bottom plate, the pressing frame and the rear shell are all made of flexible high polymer materials. According to the technical scheme, complete curling can be achieved, follow-up storage is facilitated, and meanwhile damage is not prone to occurring in the curling process.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic paper display, and in particular to a light energy powered flexible electronic display device. Background Art

[0002] Electronic paper display is a new type of flat panel display technology with paper-like display performance. Generally, reflective display technology that can achieve comfortable reading like paper, ultra-thin and light, bendable, and ultra-low power consumption is called electronic paper technology. Therefore, it has the advantages of ultra-low power consumption, comfortable reading, suitable for indoor and outdoor sunny environments, light and durable, energy-saving and environmentally friendly, just like paper with updateable display content, with significant market prospects and growth potential. Electronic paper has a huge application space in the fields of electronic readers (e-books), electronic price tags, smart cards, watches, mobile phones, industrial instruments, meters, dynamic display billboards, and media products. However, due to process problems, current electronic paper display devices cannot be completely curled, and are also prone to damage during the curling process. Utility Model Content

[0003] In order to solve the above technical problems or at least partially solve the above technical problems, the present application provides a light-powered flexible electronic display device.

[0004] The present application provides a light-powered flexible electronic display device, comprising:

[0005] Back shell;

[0006] An electronic ink display screen, which is arranged on one side of the rear housing, and the electronic ink display screen has a display surface and a back surface opposite to each other along a first direction;

[0007] A flexible circuit layer, which is arranged on the back side of the electronic ink display screen;

[0008] A pressing frame, which is arranged on one side of the display surface of the electronic ink display screen and is used to press the electronic ink display screen onto the rear housing;

[0009] A front shell, which is arranged on a side of the compression frame away from the rear shell;

[0010] The electronic ink display screen comprises a transparent conductive layer, an electrophoretic display layer and a driving base plate stacked in sequence, the electrophoretic display layer contains electrophoretic liquid and a plurality of ink particles, and the flexible circuit layer is arranged on a side of the driving base plate away from the transparent conductive layer;

[0011] The driving bottom plate, the pressing frame and the rear shell are all made of flexible polymer materials.

[0012] In a possible implementation manner, an adhesive layer is further included, and the adhesive layer is disposed between the pressing frame and the transparent conductive layer, and the upper surface and the lower surface of the adhesive layer are respectively bonded to the pressing frame and the transparent conductive layer.

[0013] In a possible implementation, the thickness of the flexible circuit layer is between 130um and 135um.

[0014] In a possible implementation manner, the diameter of the ink particles is between 200 um and 210 um.

[0015] In a possible implementation manner, a protective layer is further included, and the protective layer is disposed on the display surface of the electronic ink display screen to protect the electronic ink display screen.

[0016] In a possible implementation manner, the thickness of the protective layer is between 60um and 62um.

[0017] In a possible embodiment, it also includes a protective cover and a solar energy component, the solar energy component includes a conversion circuit and a solar energy absorber, the protective cover can be opened and closed on one side of the rear shell, the solar energy absorber is attached to the side of the protective cover away from the protective layer, the solar energy absorber is connected to the conversion circuit, and the solar energy absorber is used to absorb solar energy and convert the solar energy into electrical energy through the conversion circuit.

[0018] In a possible implementation, the solar energy absorber is made of a flexible perovskite material.

[0019] In a possible implementation, the flexible circuit layer is made of aluminum foil.

[0020] The above technical solution provided by the embodiment of the present application has the following advantages compared with the prior art:

[0021] The compression frame, the rear shell and the driving base plate are made of flexible polymer materials respectively. In addition, the electronic ink display screen has good flexibility, so that the flexible electronic paper display device can be completely curled up, which is convenient for subsequent storage and is not easily damaged during the curling process. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings herein are incorporated in and constitute a part of the specification, illustrate embodiments consistent with the present utility model, and together with the description, are used to explain the principles of the present utility model.

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0024] In the attached figure:

[0025] Figure 1 This is an exploded schematic diagram of the light-powered flexible electronic display device of the utility model;

[0026] Figure 2 This is a schematic diagram of the structure of the electronic ink display screen in the light-powered flexible electronic display device of the utility model;

[0027] Figure 3 It is a structural schematic diagram of another embodiment of the light energy powered flexible electronic display device of the utility model;

[0028] Figure 4 It is a schematic diagram of a solar energy component in the light energy powered flexible electronic display device of the utility model.

[0029] Figure Number:

[0030] 10. Front shell; 20. Compression frame; 30. Electronic ink display screen; 31. Driving base plate; 32. Electrophoretic display layer; 32a. Ink particles; 33. Transparent conductive layer; 40. Back shell; 50. Flexible circuit layer; 60. Adhesive layer; 70. Protective layer; 80. Solar module; 82. Solar absorber; 83. Conversion circuit; 90. Protective cover. DETAILED DESCRIPTION

[0031] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation methods of the present invention are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "back", "up", "down", "left", "right", "longitudinal", "horizontal", "vertical", "horizontal", "top", "bottom", "inside", "outside", "head", "tail", etc. are based on the directions or positional relationships shown in the accompanying drawings, are constructed and operated in a specific direction, and are only for the convenience of describing the present technical solution, rather than indicating that the device or element referred to must have a specific direction, and therefore cannot be understood as a limitation to the present invention.

[0032] It should also be noted that, unless otherwise clearly specified and limited, the terms such as "installed", "connected", "connected", "fixed", "set" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. When an element is referred to as being "on" or "under" another element, the element can be "directly" or "indirectly" located on the other element, or there may be one or more intermediate elements. The terms "first", "second", "third", etc. are only for the convenience of describing the present technical solution, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", "third", etc. can explicitly or implicitly include one or more of the features. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0033] In the following description, specific details such as specific system structures and technologies are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present invention. However, it should be clear to those skilled in the art that the present invention can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid unnecessary details that hinder the description of the present invention.

[0034] Please refer to Figures 1 to 4 The present application provides a light-powered flexible electronic display device, including a rear shell 40, an electronic ink display screen 30, a flexible circuit layer 50, a compression frame 20 and a front shell 10.

[0035] Specifically, the electronic ink display screen 30 is arranged on one side of the rear shell 40, and the electronic ink display screen 30 has a display surface and a back surface opposite to each other along a first direction; the flexible circuit layer 50 is arranged on the back surface of the electronic ink display screen 30; the pressing frame 20 is arranged on one side of the display surface of the electronic ink display screen, and is used to press the electronic ink display screen on the rear shell 40, and the front shell 10 is arranged on the side of the pressing frame away from the rear shell 40. Among them, the electronic ink display screen 30 includes a transparent conductive layer 33, an electrophoretic display layer 32 and a driving bottom plate 31 stacked in sequence, the electrophoretic display layer 32 has an electrophoretic liquid and a plurality of ink particles 32a built therein, and the flexible circuit layer 50 is arranged on the side of the driving bottom plate 31 away from the transparent conductive layer 33; the driving bottom plate 31, the pressing frame 20 and the rear shell 40 are all made of flexible polymer materials.

[0036] For example, the flexible circuit layer 50 can be made of a conductive and flexible material commonly used in the prior art, such as aluminum foil, copper foil, etc., without limitation. In addition, the flexible conductive layer can be a flexible conductive material printed on the back side of the electronic ink display screen using inkjet technology.

[0037] It should be noted that the flexible polymer material can adopt the flexible material in the prior art so that it can be curled to facilitate subsequent storage.

[0038] The light-powered flexible electronic display device based on the above technical features uses flexible polymer materials to make the compression frame 20, the rear shell 40 and the driving base plate 31 respectively. In addition, the electronic ink display screen 30 has good flexibility, so that the formed flexible electronic paper display device can be completely curled up, which is convenient for subsequent storage and is not easy to be damaged during the curling process.

[0039] In a possible implementation, an adhesive layer 60 is further included, and the adhesive layer 60 is disposed between the pressing frame 20 and the transparent conductive layer 33, and the upper surface and the lower surface of the adhesive layer 60 are respectively bonded to the pressing frame 20 and the transparent conductive layer 33. In this way, the two adhesive surfaces of the adhesive layer 60 are respectively bonded to the pressing frame 20 and the transparent conductive layer 33, and then the driving bottom plate 31 is supported by the rear shell 40, so that the electronic ink display screen 30 is pressed and fixed between the rear shell 40 and the pressing frame 20, so that the electronic ink display screen 30 is fixed, and the movement can be effectively avoided.

[0040] In a possible implementation manner, the thickness of the flexible circuit layer 50 is between 130 um and 135 um.

[0041] In a possible implementation manner, the diameter of the ink particles 32a is between 200 um and 210 um.

[0042] In a possible implementation manner, a protective layer 70 is further included. The protective layer 70 is disposed on the display surface of the electronic ink display screen 30 to protect the electronic ink display screen 30 .

[0043] In a possible implementation manner, the thickness of the protective layer 70 is between 60 um and 62 um.

[0044] In a possible embodiment, it also includes a protective cover 90 and a solar module 80, the solar module 80 includes a conversion circuit 82 and a solar absorber 81, the protective cover 90 can be opened and closed on one side of the rear shell 40, the solar absorber 81 is attached to the side of the protective cover 90 away from the protective layer 70, the solar absorber 81 is connected to the conversion circuit 82, and the solar absorber 81 is used to absorb solar energy and convert the solar energy into electrical energy through the conversion circuit 82.

[0045] Exemplarily, a protective cover 90 is provided on one side of the rear shell 40 so as to be openable and closable, and a solar energy absorber 81 is attached to the protective cover 90. The solar energy is absorbed by the solar energy absorber 81, and then the absorbed solar energy is converted into electrical energy through a conversion circuit 82, so that the electronic ink display 30 can be powered. There is no need for additional power supply, which makes it more convenient to use.

[0046] In addition, it should be noted that the conversion circuit 82 can be used in the prior art to convert the absorbed solar energy into electrical energy, and the structure of the conversion circuit 82 will not be described in detail.

[0047] In a possible implementation, the solar energy absorber 82 is made of a flexible perovskite material. For example, the flexible perovskite material has excellent weak light conversion efficiency and has the advantage of low cost, so that it can absorb light energy without strong sunlight and convert it into electrical energy with better efficiency.

[0048] In a possible implementation, the flexible circuit layer 50 is made of aluminum foil, so that the flexible circuit can have better flexibility and better conductivity.

[0049] It can be understood that the above embodiments only express the preferred implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the patent scope of the utility model. It should be pointed out that, for ordinary technicians in this field, without departing from the concept of the utility model, the above-mentioned technical features can be freely combined, and several deformations and improvements can be made, which all belong to the protection scope of the utility model. Therefore, all equivalent changes and modifications made to the scope of the claims of the utility model should belong to the scope covered by the claims of the utility model.

Claims

1. A light-powered flexible electronic display device, characterized in that: include: Back shell; An electronic ink display screen, which is arranged on one side of the rear housing, and the electronic ink display screen has a display surface and a back surface opposite to each other along a first direction; A flexible circuit layer, which is arranged on the back side of the electronic ink display screen; A pressing frame, which is arranged on one side of the display surface of the electronic ink display screen and is used to press the electronic ink display screen onto the rear housing; A front shell, which is arranged on a side of the compression frame away from the rear shell; The electronic ink display screen comprises a transparent conductive layer, an electrophoretic display layer and a driving base plate stacked in sequence, the electrophoretic display layer contains electrophoretic liquid and a plurality of ink particles, and the flexible circuit layer is arranged on a side of the driving base plate away from the transparent conductive layer; The driving bottom plate, the pressing frame and the rear shell are all made of flexible polymer materials.

2. The light-powered flexible electronic display device according to claim 1, characterized in that: It also includes an adhesive layer, which is arranged between the pressing frame and the transparent conductive layer, and the upper surface and the lower surface of the adhesive layer are respectively bonded to the pressing frame and the transparent conductive layer.

3. The light-powered flexible electronic display device according to claim 1, characterized in that: The thickness of the flexible circuit layer is between 130um and 135um.

4. The light-powered flexible electronic display device according to claim 1, characterized in that: The diameter of the ink particles is between 200um and 210um.

5. The light-powered flexible electronic display device according to claim 1, characterized in that: It also includes a protective layer, which is arranged on the display surface of the electronic ink display screen and is used to protect the electronic ink display screen.

6. The light-powered flexible electronic display device according to claim 5, characterized in that: The thickness of the protective layer is between 60um and 62um.

7. The light-powered flexible electronic display device according to claim 5, characterized in that: It also includes a protective cover and a solar energy component, the solar energy component includes a conversion circuit and a solar energy absorber, the protective cover can be opened and closed on one side of the rear shell, the solar energy absorber is attached to the side of the protective cover away from the protective layer, the solar energy absorber is connected to the conversion circuit, and the solar energy absorber is used to absorb solar energy and convert the solar energy into electrical energy through the conversion circuit.

8. The light-powered flexible electronic display device according to claim 7, characterized in that: The solar energy absorber is made of flexible perovskite material.

9. The light-powered flexible electronic display device according to claim 1, characterized in that: The flexible circuit layer is made of aluminum foil.

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