OLED (Organic Light Emitting Diode) display device integrated with solar cell and wearable equipment

Abstract

The utility model discloses an OLED (Organic Light Emitting Diode) display device integrated with a solar cell, which comprises a first substrate and a photovoltaic power generation device, and the photovoltaic power generation device is arranged on one side of the first substrate; the OLED display device comprises a first substrate substrate, a second substrate substrate and an OLED display device, wherein the OLED display device is arranged on one side of the second substrate substrate; the sealing glue is adhered and fixed between the first base plate substrate and the second base plate substrate, so that a sealing cavity is defined by the sealing glue, the first base plate substrate and the second base plate substrate; the photovoltaic power generation device and the OLED display device are located in the sealed cavity. The OLED display device is relatively small in thickness and relatively low in cost. The utility model further discloses a wearable device which comprises the OLED display device.

Description

TECHNICAL FIELD

[0001] The utility model relates to display technology especially, a kind of OLED display device and wearable equipment of integrated solar cell. BACKGROUND

[0002] With the development of wearable technology, wearable devices such as smart watches are gradually entering people's lives. However, the problems of small battery capacity, high power consumption and short standby time have always restricted the further development of wearable devices. In order to solve this technical problem, some manufacturers have begun to integrate solar cells into wearable devices to convert light energy into electrical energy for charging the battery.

[0003] Currently, wearable devices generally use OLED display devices as display panels. Integrating solar cells with OLED display devices is a widely used technical solution. However, this technical solution requires separately manufacturing solar cells and OLED display devices, and then attaching solar cells to OLED display devices, which requires solar cells to use a separate layer of substrate, plus the two layers of substrate of OLED display devices, totaling three layers of substrate, which has the problem of large thickness. SUMMARY

[0004] To solve the above problems of the prior art, the utility model provides an OLED display device integrated with a solar cell, which has a smaller thickness and lower cost.

[0005] The utility model also provides a wearable device comprising the above-mentioned OLED display device.

[0006] The technical problems to be solved by the utility model are solved by the following technical solutions:

[0007] An OLED display device integrated with a solar cell comprises:

[0008] A first substrate and a photovoltaic power generation device, the photovoltaic power generation device is arranged on one side of the first substrate;

[0009] A second substrate and an OLED display device, the OLED display device is arranged on one side of the second substrate;

[0010] A sealing glue is fixed between the first substrate and the second substrate to form a sealed cavity together with the first substrate and the second substrate;

[0011] The photovoltaic power generation device and the OLED display device are located in the sealed cavity.

[0012] Further, the OLED display device is arranged on the display side of the photovoltaic power generation device, and the photovoltaic power generation device is a reflective photovoltaic device.

[0013] Further, the photovoltaic power generation device comprises a first photovoltaic electrode film, a semiconductor light-absorbing film and a second photovoltaic electrode film arranged on the first substrate in sequence, the first photovoltaic electrode film is a reflective electrode film, and the second photovoltaic electrode film is a transparent electrode film.

[0014] Further, the OLED display device comprises a first display electrode film, an OLED light-emitting film and a second display electrode film arranged on the second substrate in sequence, and the first display electrode film and the second display electrode film are both transparent electrode films.

[0015] Further, the OLED display device is arranged on the display side of the photovoltaic power generation device, and the photovoltaic power generation device is a semi-transparent photovoltaic device.

[0016] Further, the photovoltaic power generation device comprises a first photovoltaic electrode film, a semiconductor light-absorbing film and a second photovoltaic electrode film arranged on the first substrate in sequence, and the first photovoltaic electrode film and the second photovoltaic electrode film are both transparent electrode films.

[0017] Further, the OLED display device is arranged on the display side of the photovoltaic power generation device, and the photovoltaic power generation device is a reflective photovoltaic device; the photovoltaic power generation device is provided with a plurality of light-transmitting regions arranged in a regular manner, and one light-transmitting region corresponds to one sub-pixel of the OLED display device.

[0018] Further, the photovoltaic power generation device comprises a first photovoltaic electrode film, a semiconductor light-absorbing film and a second photovoltaic electrode film arranged on the first substrate in sequence, the first photovoltaic electrode film is a transparent electrode film, and the second photovoltaic electrode film is a reflective electrode film.

[0019] Further, the OLED display device comprises a first display electrode film, an OLED light-emitting film and a second display electrode film arranged on the second substrate in sequence, the first display electrode film is a reflective electrode film, and the second display electrode film is a transparent electrode film.

[0020] A wearable device comprising the OLED display device.

[0021] The present invention has the following advantages: The OLED display device of the present invention places the photovoltaic power generation device on the first substrate of the conventional OLED display device, and together with the OLED display device, is encapsulated in a sealed cavity formed by the first substrate, the second substrate and the sealant. There is no need to set a separate substrate for the photovoltaic power generation device, which can reduce the overall thickness of the device and the material cost. Attached Figure Description

[0022] Figure 1 A schematic diagram of the stacked structure of the OLED display device with integrated solar cells provided by this utility model. Detailed Implementation

[0023] The present invention will now be described in detail with reference to the accompanying drawings and embodiments, examples of which are shown in the drawings. Throughout the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0024] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0026] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," "fixing," and "setting," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] Embodiment one

[0028] As Figure 1 shown, an OLED display device integrated with a solar cell includes:

[0029] a first substrate 1 and a photovoltaic power device 2, the photovoltaic power device 2 being disposed on one side of the first substrate 1;

[0030] a second substrate 4 and an OLED display device 3, the OLED display device 3 being disposed on one side of the second substrate 4;

[0031] a sealing glue 5, the sealing glue 5 being fixedly bonded between the first substrate 1 and the second substrate 4 to jointly enclose a sealed cavity with the first substrate 1 and the second substrate 4;

[0032] the photovoltaic power device 2 and the OLED display device 3 being located in the sealed cavity.

[0033] The OLED display device of the utility model sets up the photovoltaic power device 2 on the first substrate 1 of traditional OLED display device, and with the OLED display device 3, jointly encapsulates in the sealed cavity formed by the first substrate 1, second substrate 4 and sealing glue 5 three enclosures, need not to set up the substrate for the photovoltaic power device 2 alone, can reduce the overall thickness and material cost of device.

[0034] Wherein, the first substrate 1 and the second substrate 4 can be rigid substrates or flexible films.

[0035] The photovoltaic power device 2 includes a first photovoltaic electrode film 21, a semiconductor light-absorbing film 22 and a second photovoltaic electrode film 23 disposed on the first substrate 1 in sequence, and the OLED display device 3 includes a first display electrode film 31, an OLED light-emitting film and a second display electrode film 33 disposed on the second substrate 4 in sequence.

[0036] One of the first photovoltaic electrode film 21 and the second photovoltaic electrode film 23 is an anode of the photovoltaic power device 2, and the other is a cathode of the photovoltaic power device 2. Similarly, one of the first display electrode film 31 and the second display electrode film 33 is an anode of the OLED display device 3, and the other is a cathode of the OLED display device 3.

[0037] In some examples, the display side of the OLED display device 3 faces away from the photovoltaic power generation device 2, and the photovoltaic power generation device 2 is a reflective photovoltaic device, such as a silicon crystal photovoltaic device.

[0038] The OLED display device 3 is a transparent OLED, such as a PMOLED, and the first display electrode film 31 and the second display electrode film 33 of the OLED display device 3 are both transparent electrode films, which can be an indium tin oxide film, a vanadium-doped zinc oxide film, or an amino-containing polymer film, etc. as an anode, and can be a graphene film, an ultrathin metal film (thickness < 10 nm), or a metal nanowire film, etc. as a cathode.

[0039] The first photovoltaic electrode film 21 of the photovoltaic power generation device 2 is a reflective electrode film, and the second photovoltaic electrode film 23 of the photovoltaic power generation device 2 is a transparent electrode film, which can be an indium tin oxide film, a vanadium-doped zinc oxide film, or an amino-containing polymer film, etc. as an anode, and can be an aluminum, silver, or titanium metal film, etc. as a cathode.

[0040] In some examples, the display side of the OLED display device 3 faces the photovoltaic power generation device 2, and the photovoltaic power generation device 2 is a semi-transparent photovoltaic device, such as a perovskite photovoltaic device.

[0041] In this example, the OLED display device 3 is an AMOLED, the first display electrode film 31 of the OLED display device 3 is a reflective electrode film, and the second display electrode film 33 of the OLED display device 3 is a transparent electrode film, which can be an indium tin oxide film, a vanadium-doped zinc oxide film, or an amino-containing polymer film, etc. as an anode, and can be an aluminum, silver, or titanium metal film, etc. as a cathode.

[0042] The first photovoltaic electrode film 21 and the second photovoltaic electrode film 23 of the photovoltaic power generation device 2 are both transparent electrode films, which can be an indium tin oxide film, a vanadium-doped zinc oxide film, or an amino-containing polymer film, etc. as an anode, and can be a graphene film, an ultrathin metal film (thickness < 10 nm), or a metal nanowire film, etc. as a cathode.

[0043] In some examples, the display side of the OLED display device 3 faces the photovoltaic power generation device 2, and the photovoltaic power generation device 2 is a reflective photovoltaic device, such as a silicon crystal photovoltaic device; the photovoltaic power generation device 2 is provided with a plurality of regularly arranged light-transmitting regions, and one light-transmitting region corresponds to one sub-pixel of the OLED display device 3, so as to avoid each sub-pixel of the OLED display device 3 and allow the light of each sub-pixel to pass through.

[0044] In the example, the OLED display device 3 is an AMOLED, the first display electrode film 31 of the OLED display device 3 is a reflective electrode film, and the second display electrode film 33 of the OLED display device 3 is a transparent electrode film. An indium tin oxide film, a vanadium-doped zinc oxide film, or an amino-containing polymer film can be used as an anode, and a metal film such as aluminum, silver, or titanium can be used as a cathode.

[0045] The first photovoltaic electrode film 21 of the photovoltaic power generation device 2 is a transparent electrode film, and the second photovoltaic electrode film 23 of the photovoltaic power generation device 2 is a reflective electrode film. An indium tin oxide film, a vanadium-doped zinc oxide film, or an amino-containing polymer film can be used as an anode, and a metal film such as aluminum, silver, or titanium can be used as a cathode.

[0046] Embodiment Two

[0047] A wearable device, which can be, but is not limited to, a smart watch, a smart bracelet, or the like, comprises the OLED display device of embodiment one.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can still be modified or replaced by equivalents, and these modifications or replacements should not make the modified technical solutions deviate from the scope of the technical solutions of the present application.

Claims

1. An OLED display device integrating a solar cell, characterized in that, include: A first substrate and a photovoltaic power generation device, wherein the photovoltaic power generation device is disposed on one side of the first substrate; A second substrate and an OLED display device, wherein the OLED display device is disposed on one side of the second substrate; A sealant is bonded and fixed between the first substrate and the second substrate to form a sealed cavity together with the first substrate and the second substrate. The photovoltaic power generation device and the OLED display device are located inside the sealed cavity.

2. The OLED display device according to claim 1, characterized in that, The display side of the OLED display device faces away from the photovoltaic power generation device, and the photovoltaic power generation device is a reflective photovoltaic device.

3. The OLED display device according to claim 2, characterized in that, The photovoltaic power generation device includes a first photovoltaic electrode film, a semiconductor light-absorbing film, and a second photovoltaic electrode film sequentially disposed on the first substrate. The first photovoltaic electrode film is a reflective electrode film, and the second photovoltaic electrode film is a transparent electrode film.

4. The OLED display device according to claim 2 or 3, characterized in that, The OLED display device includes a first display electrode film, an OLED light-emitting film, and a second display electrode film sequentially disposed on the second substrate. Both the first display electrode film and the second display electrode film are transparent electrode films.

5. The OLED display device according to claim 1, characterized in that, The display side of the OLED display device faces the photovoltaic power generation device, which is a semi-transparent photovoltaic device.

6. The OLED display device according to claim 5, characterized in that, The photovoltaic power generation device includes a first photovoltaic electrode film, a semiconductor light-absorbing film, and a second photovoltaic electrode film sequentially disposed on the first substrate. Both the first photovoltaic electrode film and the second photovoltaic electrode film are transparent electrode films.

7. The OLED display device according to claim 1, characterized in that, The display side of the OLED display device faces the photovoltaic power generation device, which is a reflective photovoltaic device. The photovoltaic power generation device has multiple light-transmitting areas arranged in a regular pattern, and each light-transmitting area corresponds to a sub-pixel of the OLED display device.

8. The OLED display device according to claim 7, characterized in that, The photovoltaic power generation device includes a first photovoltaic electrode film, a semiconductor light-absorbing film, and a second photovoltaic electrode film sequentially disposed on the first substrate. The first photovoltaic electrode film is a transparent electrode film, and the second photovoltaic electrode film is a reflective electrode film.

9. The OLED display device according to any one of claims 5-8, characterized in that, The OLED display device includes a first display electrode film, an OLED light-emitting film, and a second display electrode film sequentially disposed on the second substrate. The first display electrode film is a reflective electrode film, and the second display electrode film is a transparent electrode film.

10. A wearable device, characterized in that, Includes the OLED display device as described in claim 1.

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