Solar-powered display module and display device

Abstract

The present invention relates to the field of display technology, specifically to a solar-charged display module and display device, comprising a touch layer, and a display panel arranged on one side of the touch layer; the display panel comprises an encapsulation layer, an array layer and a binding pad, wherein the encapsulation layer is connected to the touch layer, and the array layer is electrically connected to the binding pad through a metal trace; it also comprises a coated substrate arranged on the other side of the touch layer, and a solar charging film layer is arranged on the coated substrate; a charging electrode is arranged on the solar charging film layer; a line-changing hole area is provided on the display area of ​​the display module, and a connecting line is provided on the coated substrate, the touch layer and the display panel in the line-changing hole area, and one end of the connecting line is electrically connected to the charging electrode, and the other end is electrically connected to the metal trace on the array layer, and the charging electrode of the solar charging film layer is electrically connected to the binding pad through the connecting line in the line-changing hole area, so that only one FPC needs to be bound, which simplifies the process and can also realize a narrow-frame design of the display panel.

Description

Technical Field

[0001] The present invention relates to the field of display technology, and in particular to a solar-charged display module and a display device. Background Art

[0002] With the technological trend of reducing product power consumption, adding extra power might be a good option. For example, using solar cells in some electronic products could automatically charge them and extend their battery life.

[0003] Currently, if Figure 1 As shown, some technical solutions coat the solar charging film layer 102 on the glass cover 101 or PET substrate of the display module, then bind the FPC (Flexible Printed Circuit) to the solar charging film layer, derive the solar charging FPC 103, and then connect the solar charging FPC 103 to the module FPC 104 through the connecting wire 105, and finally realize solar charging of the battery. The connection between the connecting wire 105 and the FPC can be achieved by welding.

[0004] The existing technology sets the solar charging film layer on a glass cover or PET substrate, and then uses a bonding process to bond the glass cover or PET substrate of the solar film layer to the display module. It is not embedded in the internal film layer such as the packaging layer of the display module; the routing of the charging electrode is achieved by binding the FPC, leading the electrode out or connecting it from the frame area. The production process is complicated, and setting the routing of the charging electrode in the frame area is not conducive to the narrow frame design of the display panel. Summary of the Invention

[0005] An embodiment of the present invention provides a solar-charging display module and a display device, in which a solar-charging film layer is added to the touch layer on the display module, and a line-changing hole area is provided in the display area of ​​the display module. In addition, a connecting wire for electrically connecting the charging electrode of the solar-charging film layer to the binding pad is provided in the line-changing hole in the line-changing hole area, thereby connecting the charging electrode to the flexible circuit board of the display module. Subsequently, the FPC only needs to be bound once, which simplifies the process and improves production efficiency. At the same time, a narrow-frame design of the display panel can be achieved.

[0006] The solar-powered display module provided by the present invention includes a touch layer and a display panel disposed on one side of the touch layer. The display panel includes an encapsulation layer, an array layer, and a bonding pad. The touch layer is disposed on a side of the encapsulation layer away from the array layer, and the array layer is electrically connected to the bonding pad via metal traces.

[0007] The display module further includes a solar charging film layer disposed on a side of the touch layer away from the display panel, and a charging electrode is disposed on the solar charging film layer;

[0008] The display module includes a display area, in which a line-changing hole area is provided, a line-changing hole is provided in the line-changing hole area, and a connecting line is provided in the line-changing hole, and one end of the connecting line is electrically connected to the charging electrode, and the other end of the connecting line is electrically connected to the metal routing in the array layer.

[0009] In a preferred embodiment, a coating substrate is provided on a side of the touch layer away from the display panel, and the solar charging film layer is provided on a side of the coating substrate away from the touch layer.

[0010] In a preferred embodiment, a connection block is provided in the line-changing hole, the connection block is connected to the connection line, and the connection block is connected to the metal wiring in the array layer.

[0011] In a preferred embodiment, the line-changing hole passes through the packaging layer of the display panel, and a dam is provided along the circumference of the line-changing hole on the packaging layer.

[0012] In a preferred embodiment, the dam includes a first dam and a second dam, and the first dam is located between the second dam and the line-changing hole.

[0013] In a preferred embodiment, the encapsulation layer includes a first organic layer, an inorganic layer, and a second organic layer stacked in sequence; wherein the first dam and the second dam are both arranged on the first organic layer of the encapsulation layer, the inorganic layer ends at the second dam position, and the second inorganic layer covers the inorganic layer, the first dam, and the second dam.

[0014] In a preferred embodiment, the first dam is higher than the second dam.

[0015] In a preferred embodiment, the dam is made of organic or inorganic materials.

[0016] In a preferred embodiment, the coating substrate is a packaging layer.

[0017] The present invention further provides a display device, which includes any one of the above-mentioned display modules.

[0018] Compared with the prior art, the solar-powered display module and display device provided by the embodiments of the present invention have the following beneficial effects:

[0019] 1. The present invention adds a solar charging film layer to the touch layer of the display module, thereby embedding the solar charging film layer into the oncecell structure, simplifying the processing technology of the solar charging film layer. In the display area of ​​the display module, the charging electrodes of the solar charging film layer are electrically connected to the binding pads of the array layer via connecting wires, thereby connecting the charging electrodes to the flexible circuit board of the display module. As a result, only one FPC binding is required, eliminating the need for an additional solar charging FPC, simplifying the process and improving production efficiency. At the same time, by arranging the connecting wires within the display area, the number of wiring in the border area can be reduced, thereby realizing a narrow-border design for the display panel.

[0020] 2. The coating substrate layer is used as the coating substrate for the solar charging film layer, and the added coating substrate is located on the outer side of the touch layer; a connecting block is provided in the line-changing hole; in addition, two inner and outer circles of dams are provided along the circumference of the line-changing hole of the packaging layer (the original packaging layer of the display module), thereby effectively preventing packaging failure and preventing water and oxygen from invading other display areas through the line-changing hole, thereby affecting the use of the display panel, and solving the problem of packaging failure of the TFE protective film layer caused by the line-changing hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0022] Figure 1 It is a structural diagram of a solar charging module in the prior art;

[0023] Figure 2 is a schematic structural diagram of a display module according to an embodiment of the present invention;

[0024] Figure 3 Schematic diagram of the cross-sectional structure of the dam provided in the line change hole area in an embodiment of the present invention;

[0025] Figure 4 1 is a schematic diagram of a top view of a dam provided in a line change hole area according to an embodiment of the present invention;

[0026] Description of the drawings: 101 - glass cover, 102 - solar charging film layer, 103 - solar charging FPC, 104 - module FPC, 105 - connecting wire;

[0027] 301-cover plate, 302-polarizer, 303-solar charging film layer, 304-coating substrate, 305-touch layer, 306-encapsulation layer, 307-light-emitting layer, 308-array layer, 309-substrate, 310-flexible circuit board, 311-connecting wire, 3031-charging electrode, 401-connecting block, 402-dam. DETAILED DESCRIPTION

[0028] The features and exemplary embodiments of various aspects of the present invention will be described in detail below. In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can be implemented without the need for some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present invention by illustrating examples of the present invention.

[0029] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, the elements defined by the phrase "comprising..." do not exclude the presence of other identical elements in the process, method, article, or device comprising the elements.

[0030] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The embodiments will be described in detail below with reference to the accompanying drawings.

[0031] Example

[0032] like Figure 2As shown, this embodiment provides a solar charging display module, including a cover plate 301, a polarizer 302, a solar charging film layer (Solar cell layer) 303, a coating substrate 304, a touch layer 305 and a display panel stacked in sequence, wherein the display panel includes a stacked encapsulation layer 306, a light-emitting layer 307, an array layer 308, and a substrate 309; wherein the display panel includes a display area and a bonding area, wherein the display area controls the light-emitting units in the light-emitting layer 307 to emit light through the array layer 308, thereby displaying a picture, and the bonding area is located on one side of the display area, and a bonding pad is provided on the bonding area, which is bonded and connected to devices such as a driver chip and a flexible circuit board through the bonding pad, the battery is electrically connected to the flexible circuit board, and the bonding pad is electrically connected to the array layer 308 through a metal trace; in addition, a bending area can be provided between the display area and the bonding area, so that it is convenient to subsequently bend the bonding area to the back of the display panel, thereby realizing a narrow frame and full-screen design.

[0033] That is, the display module of this embodiment includes a touch layer 305 and a display panel including bonding pads disposed on one side of the touch layer. The touch layer is disposed on the side of the display panel's encapsulation layer away from the array layer, and a flexible circuit board is bound to the bonding pads. The display module also includes a coating substrate 304 disposed on the other side of the touch layer. That is, the coating substrate 304 is disposed on the side of the touch layer away from the display panel. The coating substrate 304 serves as a coating substrate for the solar charging film layer, and the solar charging film layer is disposed on the coating substrate. Preferably, the coating substrate 304 can be an encapsulation layer. That is, in a preferred embodiment, the display module includes a first encapsulation layer (i.e., encapsulation layer 306) and a second encapsulation layer (i.e., coating substrate 304) to improve encapsulation performance.

[0034] In addition, a charging electrode 3031 is provided on the solar charging film layer 303, and a line-changing hole area is provided within the display area of ​​the display module, wherein the orthographic projection of the display area of ​​the display module on the display panel overlaps with the display area on the display panel. In this embodiment, a connecting wire 311 is provided within the line-changing hole in the line-changing hole area, and one end of the connecting wire is electrically connected to the charging electrode, and the other end of the connecting wire is electrically connected to the metal trace on the array layer. That is, the charging electrode 3031 is guided to the binding pad on one side of the array layer through the connecting wire and the metal trace, thereby connecting the charging electrode to the flexible circuit board of the display module. It is worth noting that in this embodiment, the flexible circuit board of the display module includes a solar charging module, so that the solar charging module does not need to be separately bound to form an additional flexible circuit board. In this embodiment, by integrating the solar charging module into the flexible circuit board of the display module, that is, integrating the solar charging FPC into the flexible circuit board of the display module, only one flexible circuit board needs to be bound, which simplifies the process and improves production efficiency.

[0035] Combine Figure 2In this embodiment, in the wiring hole area of ​​the display module, interconnected wiring holes are provided at corresponding positions of the coating substrate, touch layer, and each film layer of the display panel. The above-mentioned connecting wires are located in the wiring holes, thereby electrically connecting the charging electrodes to the metal traces in the array layer. Specifically, Figure 2 In the display module structure shown, the multiple film layers in which the wiring holes are provided include: the coating substrate 304, the touch layer 305, the encapsulation layer 306, the light-emitting layer 307, and the array layer 308. The wiring holes can penetrate the coating substrate 304, the touch layer 305, the encapsulation layer 306, the light-emitting layer 307, and part of the film layers of the array layer 308, so that the connecting wires located in the wiring holes can be connected to the metal traces in the array layer. In other words, this embodiment arranges the above-mentioned connecting wires within the display area of ​​the display module, rather than in the display module frame area, which facilitates the narrow frame of the display module and is easy to implement by simplifying the production process.

[0036] In addition, reference Figure 2 In this embodiment, multiple connecting lines are provided, and these multiple connecting lines are connected using a rotating line distribution method. For example, a horizontal connecting line is provided on the touch layer 305. One end of this horizontal connecting line is connected to a vertical connecting line, which runs through the touch layer 305; the other end of this horizontal connecting line is connected to a vertical connecting line, which runs through the encapsulation layer 306 below the touch layer 305. Similarly, similar structural designs can be used in the light-emitting layer 307 and the array layer 308, and multiple connecting lines are used to electrically connect the charging electrodes to the metal traces on the array layer.

[0037] In this embodiment, a coating substrate 304 is added to the touch layer 305 as a second encapsulation layer. A solar charging film is then deposited on this second encapsulation layer, allowing the solar charging film to be directly embedded into the display screen. This reduces the complexity of the solar charging film's production and processing, while also further improving encapsulation performance. Furthermore, connecting wires electrically connect the charging electrodes to the bonding pads on the array layer. The display module's flexible printed circuit board is then bonded to these bonding pads. This process only requires a single flexible printed circuit board bond, simplifying the production process.

[0038] like Figure 3 、 Figure 4 As shown, in this embodiment, on the light-emitting layer and the array layer, a connection block 401 is provided in the line-changing hole located in the line-changing hole area, and the connection block 401 is connected to the connection line 311, and the connection block 401 is connected to the metal wiring in the array layer, thereby realizing the electrical connection of the charging electrode to the metal wiring on the array layer.

[0039] In addition, since a through-hole for changing wires is provided on the packaging layer 306, in order to avoid packaging failure, a dam 402 is provided around the hole for changing wires in the packaging layer 306. Figure 3 and attached Figure 4 The dam 402 is arranged circumferentially along the cable-changing hole in the encapsulation layer 306, and the encapsulation layer terminates at the dam 402, thereby ensuring the encapsulation effect. Preferably, in this embodiment, two circles of dams 402 are provided circumferentially around the cable-changing hole in the encapsulation layer 306. This effectively prevents encapsulation failure of the display screen due to the presence of cable-changing holes in the cable-changing hole area, ensuring that the encapsulation effect of the display module is not affected by the cable-changing holes provided in the cable-changing hole area for the connection wires to pass through, thus ensuring the encapsulation effect of the display module.

[0040] In this embodiment, the encapsulation layer 306 includes a multilayer structure of inorganic layers and organic layers stacked together. Specifically, Figure 3 As shown, the encapsulation layer 306 in this embodiment includes a first inorganic layer, an organic layer, and a second inorganic layer stacked in sequence. The dam 402 includes a first dam and a second dam, with the first dam located between the second dam and the line-changing hole. The first and second dams are both disposed on the first inorganic layer, the organic layer terminates at the second dam, and the second inorganic layer covers the inorganic layer, the first dam, and the second dam. The first dam is higher than the second dam, improving encapsulation performance.

[0041] In a preferred embodiment, the first dam and the second dam can be made of organic or inorganic materials. The first dam and the second dam are in the shape of a ring, or in the shape of a triangle, a rectangle or other polygons.

[0042] In addition, the present application also provides a display device, which may include the display module of any of the above embodiments. Since the display device of the embodiment of the present application includes the above display module, the display device of the embodiment of the present application has the beneficial effects of the above display module, which will not be repeated here.

[0043] The display device can be any device with a display function, for example, a mobile device such as a mobile phone, a tablet computer, a laptop computer, a PDA, an in-vehicle electronic device, a wearable device, an ultra-mobile personal computer (UMPC), a netbook, or a personal digital assistant (PDA), and can also be a non-mobile device such as a personal computer (PC), a television (TV), an ATM, or an kiosks.

[0044] It should be understood that the present invention is not limited to the specific configurations and processes described above and illustrated in the figures. For the sake of brevity, a detailed description of known methods is omitted. In the above embodiments, several specific steps are described and illustrated as examples. However, the method of the present invention is not limited to the specific steps described and illustrated. Those skilled in the art may make various changes, modifications, and additions, or change the order of the steps after understanding the spirit of the present invention.

[0045] It should also be noted that the exemplary embodiments described herein describe methods or systems based on a series of steps or devices. However, the present invention is not limited to the order of the steps described above. In other words, the steps may be performed in the order described in the embodiments, or in a different order, or several steps may be performed simultaneously.

[0046] The above is only a specific embodiment of the present invention. Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working processes of the systems, modules and units described above can refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here. It should be understood that the protection scope of the present invention is not limited to this. Any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be covered within the protection scope of the present invention.

Claims

1. A solar-powered display module comprising a touch layer and a display panel disposed on one side of the touch layer; the display panel comprises an encapsulation layer, an array layer, and a bonding pad, wherein: The touch layer is arranged on the side of the packaging layer away from the array layer, and the array layer is electrically connected to the bonding pad through metal traces; the characteristics are: The display module further includes a solar charging film layer disposed on a side of the touch layer away from the display panel, and a charging electrode is disposed on the solar charging film layer; The display module includes a display area, in which a line-changing hole area is provided. A line-changing hole is provided in the line-changing hole area. A connecting wire is provided in the line-changing hole. One end of the connecting wire is electrically connected to the charging electrode, and the other end of the connecting wire is electrically connected to the metal routing in the array layer.

2. The display module according to claim 1, wherein: A coating substrate is provided on a side of the touch layer away from the display panel, and the solar charging film layer is provided on a side of the coating substrate away from the touch layer.

3. The display module according to claim 2, wherein: A connection block is provided in the line-changing hole, and the connection block is connected to the connection line, and the connection block is connected to the metal wiring in the array layer.

4. The display module according to claim 3, wherein: The line-changing hole passes through the packaging layer of the display panel, and a dam is provided along the circumference of the line-changing hole on the packaging layer.

5. The display module according to claim 4, wherein: The dam includes a first dam and a second dam, and the first dam is located between the second dam and the line-changing hole.

6. The display module according to claim 5, wherein: The encapsulation layer includes a first organic layer, an inorganic layer and a second organic layer stacked in sequence; wherein the first dam and the second dam are both arranged on the first organic layer of the encapsulation layer, the inorganic layer ends at the second dam position, and the second inorganic layer covers the inorganic layer, the first dam and the second dam.

7. The display module according to claim 6, wherein: The first dam is higher than the second dam.

8. The display module according to any one of claims 4 to 7, wherein: The dam is made of organic or inorganic materials.

9. The display module according to claim 2, wherein: The coating substrate is a packaging layer.

10. A display device, characterized in that: The display module comprises any one of claims 1 to 9.

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