Solar cell structure of display panel

Abstract

The invention provides a solar cell structure of a display panel, which is characterized in that a second solar cell layer is arranged in an electrical connection area, so that the display panel is not influenced, the light receiving area of a solar cell is increased, and the power supply of the solar cell is increased. The first solar cell layer, the second solar cell layer and the flexible circuit board are connected through the wires, namely, the electric energy provided by the solar cells can be transmitted to the flexible circuit board through the wires, so that the defect that the electric energy loss is large due to the fact that the electric energy is transmitted through series connection between the solar cells in the prior art is overcome.

Description

Technical Field

[0001] The invention relates to a solar cell and a display device, in particular to a solar cell structure of a display panel. Background Art

[0002] When portable electronic products are used outdoors for a long time, the battery power installed in the electronic products will also be consumed. Therefore, portable electronic products will also move to high-capacity batteries, reduce losses, or integrate solar cells inside for additional charging to increase battery life.

[0003] Portable electronic products usually use chemical power sources to provide power for the devices. Since the battery life of chemical power sources is limited, after a period of use, a new chemical power source must be replaced or the chemical power source must be charged to ensure the normal operation of the electronic device, which brings inconvenience to the user. Before the chemical power source is exhausted and a new chemical power source is replaced, or during the charging of the chemical power source, the user cannot use the electronic device.

[0004] If solar cells are used to capture energy from the environment and charge the chemical power source of portable electronic products, the chemical power source will continue to power the wearable electronic devices, which is one of the solutions to the problems of continuous operation of wearable electronic devices and insufficient power of portable electronic products.

[0005] In practical applications, in order to effectively capture energy to meet the needs of electronic devices, solar cells need high photoelectric conversion efficiency and the largest possible light-receiving area. In common electronic devices, the display is the part with the highest probability of receiving light and is the best location for laying solar cells. Integrating solar cells into display devices does not occupy additional area of ​​electronic devices such as electronic devices, maintaining its small size and portability, which is conducive to the miniaturization of electronic devices such as electronic devices.

[0006] The most common working principle of display devices is to emit light from the display screen to the human eyeball (luminescence); on the contrary, solar cells need to absorb as much light as possible from the environment to prevent light from overflowing (light absorption). If solar cells and display panels are directly stacked, the two will interfere with each other optically and cannot perform their respective functions normally.

[0007] The current solution is usually to use translucent solar cells superimposed on the display screen to form a display panel with energy capture characteristics. Such solar cells only absorb infrared light or ultraviolet light, while visible light (400nm-800nm) can directly penetrate the solar cell without being absorbed, so that the display panel can work normally. However, the disadvantage of this solution is that the utilization rate of solar energy is extremely low. In the normal solar spectrum, the energy of infrared light and ultraviolet light only accounts for about 10% of the entire solar spectrum. In addition, the photoelectric conversion efficiency of solar cells is usually less than 30%. Finally, only about 3% of solar energy is utilized. In addition, there is almost no infrared light and ultraviolet light in the light emitted by many indoor light sources (cold light sources), which greatly limits the application of this method.

[0008] In addition, a display panel is usually provided with a polarizer on its outer side, which causes light to be filtered, thereby causing the solar cells placed near the display panel to receive light inefficiently, resulting in the solar cells being unable to generate electricity effectively or generating insufficient electricity.

[0009] Therefore, display panel related technologies are not limited to making them lighter and thinner for easy carrying when going out or increasing battery capacity or simply adding solar cells to improve the battery life of display panels. The traditional manufacturing yield of various electrical products, the conversion efficiency of solar cells themselves, increasing the light-receiving area of ​​solar cells, and how to make display panels and solar cells coexist are also what the industry has been pursuing.

[0010] In order to achieve better conversion efficiency of the electric energy generated by the solar cell in the display panel and enable the solar cell to have a larger light receiving area in the display panel, the present invention provides a solar cell structure with a display panel to serve the general public and promote the development of this industry. Summary of the invention

[0011] An object of the present invention is to provide a solar cell structure for a display panel that does not interfere with the display panel, has better photoelectric conversion efficiency, and has a larger light receiving area than the conventional one.

[0012] In view of the above-mentioned purpose, the present invention provides a solar cell structure of a display panel, which includes: a polarizing layer; an optical substrate, which is arranged above the polarizing layer; a display area, which is arranged above the optical substrate, which includes: a color filter layer, which is arranged above the optical substrate; a first solar cell layer, which wraps an outer side of the color filter layer; a protective layer, which wraps an outer side of the first solar cell layer and is arranged on the optical substrate; a liquid crystal layer, which is arranged above the color filter layer and the protective layer; and a sealing layer, which is arranged above the protective layer, and the sealing layer is adjacent to the liquid crystal layer. layer; an electrical connection area, which is adjacent to the first solar cell layer and is arranged above the optical substrate, and includes: a flexible circuit board, which is arranged above the optical substrate; and a second solar cell layer, which is arranged above the optical substrate, the second solar cell layer is arranged between an orthographic projection area of ​​the sealing layer and the flexible circuit board, the second solar cell layer is electrically connected to the first solar cell layer and the flexible circuit board, and the protective layer wraps an outer side of the second solar cell layer; so that it will not affect the display panel while increasing the light receiving area of ​​the solar cell, thereby increasing the power supply of the solar cell.

[0013] The present invention provides an embodiment, wherein the first solar cell layer is electrically connected to the second solar cell layer through a first wiring and a second wiring.

[0014] The present invention provides an embodiment, wherein the first solar cell layer and the second solar cell layer are integrally formed.

[0015] The present invention provides an embodiment, wherein the second solar cell layer is electrically connected to the flexible printed circuit board through a third wiring and a fourth wiring.

[0016] The present invention provides an embodiment, which further includes: a third solar cell layer, which is sandwiched between the optical substrate and the sealing layer, the third solar cell layer is arranged in the orthographic projection area of ​​the sealing layer, the third solar cell layer is electrically connected to the first solar cell layer and the second solar cell layer, and the protective layer wraps an outer side of the third solar cell layer.

[0017] The present invention provides an embodiment, wherein the first solar cell layer, the second solar cell layer and the third solar cell layer are integrally formed.

[0018] The present invention provides an embodiment, wherein the distance between the second solar cell layer and the flexible printed circuit board is at least 0.1 mm.

[0019] The present invention provides an embodiment, wherein the second solar cell layer is electrically connected to the flexible printed circuit board through a third wiring and a fourth wiring.

[0020] The present invention provides an embodiment, wherein the second solar cell layer further includes: a second lower electrode layer, which is disposed above the optical substrate; a second photoelectric conversion layer, which is disposed above the second lower electrode layer; a second upper electrode layer, which is disposed above the second photoelectric conversion layer; and a second transmission electrode layer, which is disposed above the second upper electrode layer, and the second transmission electrode layer is coupled to the third routing and the fourth routing.

[0021] The present invention provides an embodiment, wherein the first solar cell layer is electrically connected to the flexible printed circuit board through the third wiring and the fourth wiring.

[0022] The present invention provides an embodiment, wherein the first solar cell layer further includes: a first lower electrode layer, which is disposed above the optical substrate; a first photoelectric conversion layer, which is disposed above the first lower electrode layer; a first upper electrode layer, which is disposed above the first photoelectric conversion layer; and a first transmission electrode layer, which is disposed above the first upper electrode layer, and the first transmission electrode layer is coupled to the third wiring and the fourth wiring.

[0023] The present invention provides an embodiment, wherein the flexible circuit board includes: a charging control circuit, which is used to transmit the electric energy generated by the first solar cell layer and the second solar cell layer to a storage element; the storage element, which is coupled to the charging control circuit, and is used to store the electric energy generated by the first solar cell layer and the second solar cell layer; and a conversion circuit, which is coupled to the charging control circuit and is used to convert the voltage of the electric energy generated by the first solar cell layer and the second solar cell layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 :It is a schematic diagram of a solar cell structure of a conventional display panel; Figure 2A : It is a schematic structural diagram of the first embodiment of the present invention; Figure 2B : It is a structural cross-sectional view of the first embodiment of the present invention; Figure 2C : It is a cross-sectional view of the display area of ​​the first embodiment of the present invention; Figure 2D : It is a cross-sectional view of the electrical connection area of ​​the first embodiment of the present invention; Figure 3A : It is a schematic structural diagram of the second embodiment of the present invention; Figure 3B : It is a structural cross-sectional view of a second embodiment of the present invention; Figure 3C : It is a cross-sectional view of the display area of ​​the second embodiment of the present invention; Figure 3D : It is a cross-sectional view of the electrical connection area of ​​the second embodiment of the present invention; Figure 4A : It is a schematic structural diagram of the third embodiment of the present invention; Figure 4B : It is a structural cross-sectional view of a third embodiment of the present invention; Figure 4C : It is a cross-sectional view of the display area of ​​the third embodiment of the present invention; Figure 4D : It is a cross-sectional view of the electrical connection area of ​​the third embodiment of the present invention; Figure 5 : It is a schematic structural diagram of a fourth embodiment of the present invention; Figure 6 : It is a schematic structural diagram of a fifth embodiment of the present invention; Figure 7 : It is a schematic structural diagram of a sixth embodiment of the present invention; Figure 8 : It is a schematic structural diagram of the seventh embodiment of the present invention; Fig. 9 : It is a schematic structural diagram of an eighth embodiment of the present invention; Fig. 10A :It is a schematic structural diagram of the first solar cell layer of the present invention; Fig. 10B :It is a schematic structural diagram of the second solar cell layer of the present invention; Fig.11A :It is a structural diagram of the flexible circuit board of the present invention; Fig. 11B :It is another structural diagram of the flexible circuit board of the present invention; and Fig. 11C : It is another structural diagram of the flexible circuit board of the present invention.

Figure number comparison

[0025] In order to further understand and appreciate the structural features and effects of the present invention, a preferred embodiment and detailed description are provided as follows:

[0026] It is known that if solar cells are combined with display panels, not only will the display panel and the solar cells interfere with each other, the photoelectric conversion efficiency of the solar cells is also poor, and the light-receiving area of ​​the solar cells is also small, so they cannot generate enough electricity for electronic devices to use. The power supply is unstable, causing the display panel to easily fail or be damaged.

[0027] The present invention improves the solar cell structure of the display panel, which not only makes the photoelectric conversion efficiency of the solar cell higher than the conventional one, but also has a larger light receiving area of ​​the solar cell than the conventional one. In addition, the structure of the present invention also prevents the display panel and the solar cell from interfering with each other, and can realize their respective functions.

[0028] Hereinafter, the present invention will be described in detail by illustrating various embodiments of the present invention with reference to the drawings. However, the concept of the present invention may be embodied in many different forms and should not be construed as being limited to the exemplary embodiments described herein.

[0029] First, see Figure 1, which is a schematic diagram of a solar cell structure of a conventional display panel, as shown in the figure, it includes: an optical substrate 1, which includes: a display area 10; a solar cell layer 12, which is arranged in the display area 10 and on the optical substrate 1; an electrical connection area 20, which is adjacent to the display area 10, a flexible circuit board 14, which is arranged in the electrical connection area 20 and on the optical substrate 1; a third trace 17, which is used to connect the solar cell layer 12 and the flexible circuit board 14; and a fourth trace 18, which is used to connect the solar cell layer 12 and the flexible circuit board 14.

[0030] Thus, it can be known that the solar cell layer 12 is connected in series through multiple solar cells, and the current is transmitted to the third wiring 17 or the fourth wiring 18 through the series-connected solar cells, and there is still a lot of unused space in the electrical connection area 20. If the unused space in this area can be filled, more light-receiving areas of solar cells can be increased, thereby increasing the power generation of the solar cells.

[0031] Continuing from above, see Figure 2A , which is a schematic diagram of the structure of the first embodiment of the present invention, as shown in the figure, it includes: an optical substrate 1, which includes: a display area 10; a first solar cell layer 22, which is arranged in the display area 10 and on the optical substrate 1; an electrical connection area 20, which is adjacent to the display area 10 and arranged above the optical substrate 1, a flexible circuit board 14, which is arranged in the electrical connection area 20 and on the optical substrate 1; a second solar cell layer 24, which is arranged in the electrical connection area 20 and on the optical substrate 1; a first trace 15, which is used to connect the first solar cell layer 22 and the second solar cell layer 24, and transmit the electric energy generated by the first solar cell layer 22 to the second solar cell layer 24. energy cell layer 24; a second trace 16, which is used to connect the first solar cell layer 22 and the second solar cell layer 24, and transmit the electric energy generated by the first solar cell layer 22 to the second solar cell layer 24; the third trace 17, which is used to connect the second solar cell layer 24 and the flexible circuit board 14, and transmit the electric energy generated by the first solar cell layer 22 and the second solar cell layer 24 to the flexible circuit board 14; the fourth trace 18, which is used to connect the second solar cell layer 24 and the flexible circuit board 14, and transmit the electric energy generated by the first solar cell layer 22 and the second solar cell layer 24 to the flexible circuit board 14, and a symmetry axis AA'.

[0032] In the first embodiment of the present invention, a first gap D1 is set between the optical substrate 1 and the first solar cell layer 22 and the second solar cell layer 24. The first gap D1 is 0.05 mm. The purpose of setting it is to avoid affecting the cutting. A second gap D2 is set between the flexible circuit board 14 and the second solar cell layer 24. The second gap D2 is 0.1 mm. The purpose of setting it is to avoid the flexible circuit board 14 from contacting the second solar cell layer 24. The flexible circuit board 14 needs to withstand thermal pressure to be fixed on the optical substrate 1. In order to avoid the thermal pressure from damaging the second solar cell layer 24, the second gap D2 is set between the flexible circuit board 14 and the second solar cell layer 24.

[0033] The first embodiment of the present invention further disposes the second solar cell layer 24 in the electrical connection area 20, so that the area capable of solar charging is larger and the light receiving area is larger than that of the prior art, thereby increasing the power generation of the solar cell.

[0034] Continuing from above, see Figure 2A , Figure 2B , Figure 2C as well as Figure 2D , Figure 2B is a structural cross-sectional view of a first embodiment of the present invention, Figure 2C is a cross-sectional view of a display area of ​​a first embodiment of the present invention, Figure 2D is a cross-sectional view of the electrical connection area of ​​the first embodiment of the present invention, Figure 2B , Figure 2C as well as Figure 2D For the present invention Figure 2AAccording to the cross-sectional view taken along the symmetry axis AA', as shown in the figure, the structure of the first embodiment of the present invention includes: the optical substrate 1; the display area 10, which is arranged on the optical substrate 1, and the display area 10 further includes: a color filter layer 40, which is arranged on the optical substrate 1; the first solar cell layer 22, which is arranged in the display area 10 and on the optical substrate 1, and covers an outer side of the color filter layer 40; a protective layer 19, a portion of the protective layer 19 covers the first solar cell layer 22; a liquid crystal layer 42, which is arranged on the protective layer 19 and on the color filter layer 40; a sealing layer 44, which is adjacent to the liquid crystal layer 42 and arranged on the protective layer 19; a polarizing layer 50, which is arranged corresponding to the display area 10 and Located below the optical substrate 1; the electrical connection area 20, which is adjacent to the display area 10 and is arranged above the optical substrate 1, the electrical connection area 20 further includes: the second solar cell layer 24, which is arranged on the optical substrate 1 and is arranged between a positive projection area of ​​the sealing layer 44 and the flexible circuit board 14, the second solar cell layer 24 is electrically connected to the first solar cell layer 22 and the flexible circuit board 14; a portion of the protective layer 19 encapsulates the second solar cell layer 24; the flexible circuit board 14, which is arranged on the optical substrate 1; an array element 46, which is arranged on the liquid crystal layer 42 and the sealing layer 44; an array substrate 48, which is arranged on the array element 46, wherein the light incident side is below the polarizing layer 50.

[0035] Continuing from the above, the first embodiment of the present invention provides a better power generation environment for the solar cell by adding a second solar cell 24 in the electrical connection area 20, compared with the conventional method, through a larger light-receiving area, so that the solar cell can provide more environmentally friendly energy. In addition, the structure of the first embodiment of the present invention sets the second solar cell layer 24 in the electrical connection area 20. Since the position where the polarizing layer 50 is set does not cover the second solar cell layer 24, it will not be affected by the polarizing layer 50, thereby reducing the power generation efficiency of the second solar cell layer 24, and can allow light to directly irradiate the second solar cell layer 24 to improve the power generation efficiency.

[0036] Next Read Figure 3A, which is a schematic diagram of the structure of the second embodiment of the present invention, as shown in the figure, its structure includes: the optical substrate 1, which includes: the display area 10; the first solar cell layer 22, which is arranged in the display area 10 and on the optical substrate 1, and covers an outer side of the color filter layer 40; the electrical connection area 20, which is adjacent to the display area 10 and arranged above the optical substrate 1, the flexible circuit board 14, which is arranged in the electrical connection area 20 and on the optical substrate 1; the second solar cell layer 24, which is arranged in the electrical connection area 20 and on the optical substrate 1, and is adjacent to the first solar cell layer 22; the third wiring 17, which is used to connect The second solar cell layer 24 and the flexible circuit board 14 are connected to each other, and the electric energy generated by the second solar cell layer 24 is transmitted to the flexible circuit board 14; the fourth trace 18 is used to connect the second solar cell layer 24 and the flexible circuit board 14, and the electric energy generated by the second solar cell layer 24 is transmitted to the flexible circuit board 14; and the symmetry axis AA', as shown in the figure, which is different from the first embodiment of the present invention in that the second embodiment of the present invention connects the first solar cell layer 22 and the second solar cell layer 24 in parallel or in series, instead of connecting them through the first trace 15 and the second trace 16 as in the first embodiment of the present invention.

[0037] The reasons for setting the first gap D1 and the second gap D2 in the second embodiment of the present invention have been explained in the first embodiment of the present invention, and thus will not be repeated here.

[0038] The second embodiment of the present invention further disposes the second solar cell layer 24 in the electrical connection area 20, so that the area capable of solar charging is larger and the light receiving area is larger than that of the conventional method, thereby increasing the power generation of the solar cell.

[0039] Continuing from above, see Figure 3A , Figure 3B , Figure 3C as well as Figure 3D , Figure 3B is a structural cross-sectional view of a second embodiment of the present invention, Figure 3C is a cross-sectional view of a display area of ​​a second embodiment of the present invention, Figure 3D is a cross-sectional view of the electrical connection area of ​​the second embodiment of the present invention, Figure 3B , Figure 3C as well as Figure 3D For the present invention Figure 3AAccording to the cross-sectional view taken along the symmetry axis AA', as shown in the figure, the structure of the second embodiment of the present invention includes; the optical substrate 1; the display area 10, which is arranged on the optical substrate 1, and the display area 10 further includes: the color filter layer 40, which is arranged on the optical substrate 1; the first solar cell layer 22, which is arranged in the display area 10 and on the optical substrate 1, and covers an outer side of the color filter layer 40; the protective layer 19, a portion of the protective layer 19 covers the first solar cell layer 22; the liquid crystal layer 42, which is arranged on the protective layer 19 and on the color filter layer 40; the sealing layer 44, which is adjacent to the liquid crystal layer 42 and arranged on the protective layer 19; the polarizing layer 50, which is arranged corresponding to the display area 10 and is located below the optical substrate 1; the electrical connection area 20, which is adjacent to the The display area 10 is arranged above the optical substrate 1, and the electrical connection area 20 further includes: the second solar cell layer 24, which is arranged on the optical substrate 1 and adjacent to the first solar cell layer 22; the protective layer 19 partially wraps the second solar cell layer 24; the flexible circuit board 14, which is arranged on the optical substrate 1; the array element 46, which is arranged on the liquid crystal layer 42 and the sealing layer 44; the array substrate 48, which is arranged on the array element 46, as shown in the figure, which is different from the first embodiment of the present invention in that the second embodiment of the present invention connects the first solar cell layer 22 and the second solar cell layer 24 in parallel or in series, instead of connecting through the first wiring 15 and the second wiring 16 as in the first embodiment of the present invention, wherein the light incident side is below the polarizing layer 50.

[0040] In the second embodiment of the present invention, the first solar cell layer 22 and the second solar cell layer 24 can be integrally formed solar cells.

[0041] Continuing with the above, the second embodiment of the present invention, by adding a second solar cell 24 in the electrical connection area 20, can provide a better power generation environment for the solar cell through a larger light-receiving area than the conventional method, so that the solar cell can provide more environmentally friendly energy. The structure of the second embodiment of the present invention sets the second solar cell layer 24 in the electrical connection area 20. Since the position where the polarizing layer 50 is set does not cover the second solar cell layer 24, it will not be affected by the polarizing layer 50, thereby reducing the power generation efficiency of the second solar cell layer 24, and can allow light to directly irradiate the second solar cell layer 24 to improve the power generation efficiency.

[0042] Next Read Figure 4A, which is a schematic diagram of the structure of the third embodiment of the present invention, as shown in the figure, its structure includes: the optical substrate 1, which includes: the display area 10; the first solar cell layer 22, which is arranged in the display area 10 and on the optical substrate 1, and covers an outer side of the color filter layer 40; and a third solar cell layer 26, which is arranged in the display area 10 and on the optical substrate 1, and is adjacent to the first solar cell layer 22; the electrical connection area 20, which is adjacent to the display area 10 and arranged above the optical substrate 1, the flexible circuit board 14, which is arranged in the electrical connection area 20 and on the optical substrate 1; the second solar cell layer 24, which is arranged in the electrical connection area 20 and on the optical substrate 1, and is adjacent to the third solar cell layer 26; the third trace 17, which is used to connect The second solar cell layer 24 and the flexible circuit board 14, and transmits the electric energy generated by the second solar cell layer 24 to the flexible circuit board 14; the fourth trace 18, which is used to connect the second solar cell layer 24 and the flexible circuit board 14, and transmits the electric energy generated by the second solar cell layer 24 to the flexible circuit board 14; and the symmetry axis AA', as shown in the figure, which is different from the first embodiment of the present invention in that the third embodiment of the present invention disposes the third solar cell layer 26 between the first solar cell layer 22 and the second solar cell layer 24, and connects the first solar cell layer 22, the third solar cell layer 26 and the second solar cell layer 24 in parallel or in series, instead of connecting through the first trace 15 and the second trace 16 as in the first embodiment of the present invention.

[0043] The reasons for setting the first gap D1 and the second gap D2 in the third embodiment of the present invention have been explained in the first embodiment of the present invention, and thus will not be repeated here.

[0044] The third embodiment of the present invention further disposes the second solar cell layer 24 in the electrical connection area 20, so that the area capable of solar charging is larger and the light receiving area is larger than that of the conventional method, thereby increasing the power generation of the solar cell.

[0045] Continuing from above, see Figure 4A , Figure 4B , Figure 4C as well as Figure 4D , Figure 4B is a structural cross-sectional view of a third embodiment of the present invention, Figure 4C is a cross-sectional view of a display area of ​​a third embodiment of the present invention, Figure 4D is a cross-sectional view of the electrical connection area of ​​the third embodiment of the present invention, Figure 4B , Figure 4C as well as Figure 4D For the present invention Figure 4AAccording to the cross-sectional view taken along the symmetry axis AA', as shown in the figure, the structure of the third embodiment of the present invention includes: the optical substrate 1; the display area 10, which is arranged on the optical substrate 1, and the display area 10 further includes: the color filter layer 40, which is arranged on the optical substrate 1; the first solar cell layer 22, which is arranged in the display area 10 and on the optical substrate 1, and covers an outer side of the color filter layer 40; the third solar cell layer 26, which is arranged on the optical substrate 1 and adjacent to the first solar cell layer 22; The protective layer 19 partially encapsulates the first solar cell layer 22 and the third solar cell layer 26; the liquid crystal layer 42 is disposed on the protective layer 19 and on the color filter layer 40; the sealing layer 44 is adjacent to the liquid crystal layer 42 and disposed on the protective layer 19; the polarizing layer 50 is disposed corresponding to the display area 10 and is located below the optical substrate 1; the electrical connection area 20 is adjacent to the display area 10 and disposed on the optical substrate 1, and the electrical connection area 20 further includes: the second solar cell layer 24, which is arranged on the optical substrate 1 and adjacent to the third solar cell layer 26; the protective layer 19 partially encapsulates the second solar cell layer 24; the flexible circuit board 14, which is arranged on the optical substrate 1; the array element 46, which is arranged on the liquid crystal layer 42 and the sealing layer 44; the array substrate 48, which is arranged on the array element 46, as shown in the figure, is different from the first embodiment of the present invention in that the third embodiment of the present invention connects the first solar cell layer 22, the third solar cell layer 26 in parallel or in series. Layer 26 and the second solar cell layer 24 are not connected through the first wiring 15 and the second wiring 16 as in the first embodiment of the present invention, wherein the light incident side is below the polarizing layer 50, and the third solar cell layer 26 is sandwiched between the optical substrate 1 and the sealing layer 44, the third solar cell layer 26 is arranged in the orthographic projection area of ​​the sealing layer 44, the third solar cell layer 26 is electrically connected to the first solar cell layer 22 and the second solar cell layer 24, and the protective layer 19 partially encloses the third solar cell layer 26.

[0046] In the third embodiment of the present invention, the first solar cell layer 22 , the second solar cell layer 24 , and the third solar cell layer 26 may be integrally formed solar cells.

[0047] In the third embodiment of the present invention, the first solar cell layer 22 and the second solar cell layer 24 may be electrically connected to each other through wiring, and the second solar cell layer 24 and the third solar cell layer 26 may also be electrically connected to each other through wiring.

[0048] Continuing with the above, the third embodiment of the present invention provides a better power generation environment for the solar cell by adding a second solar cell 24 in the electrical connection area 20, compared with the conventional method, through a larger light-receiving area, so that the solar cell can provide more environmentally friendly energy. In addition, the structure of the third embodiment of the present invention sets the second solar cell layer 24 in the electrical connection area 20 and sets the third solar cell layer 26 in the display area 10. Since the position where the polarizing layer 50 is set does not cover the second solar cell layer 24 and the third solar cell layer 26, it will not be affected by the polarizing layer 50, thereby reducing the power generation efficiency of the second solar cell layer 24 and the third solar cell layer 26, and can allow light to directly irradiate the second solar cell layer 24 and the third solar cell layer 26 to improve the power generation efficiency.

[0049] Next Read Figure 5 , which is a schematic diagram of the structure of the fourth embodiment of the present invention, as shown in the figure, the structure includes: the optical substrate 1, which includes: the display area 10; the first solar cell layer 22, which is arranged in the display area 10 and on the optical substrate 1, and covers an outer side of the color filter layer 40; the electrical connection area 20, which is adjacent to the display area 10 and arranged above the optical substrate 1, the flexible circuit board 14, which is arranged in the electrical connection area 20 and on the optical substrate 1; the second solar cell layer 24, which is arranged in the electrical connection area 20 and on the optical substrate 1, and is adjacent to the first solar cell layer 22; the third wiring 17, It is used to connect the second solar cell layer 24 and the flexible circuit board 14, and transmit the electric energy generated by the second solar cell layer 24 to the flexible circuit board 14; and the fourth routing 18, which is used to connect the second solar cell layer 24 and the flexible circuit board 14, and transmit the electric energy generated by the second solar cell layer 24 to the flexible circuit board 14, wherein the first solar cell layer 22 is connected to the second solar cell layer 24 in series or in parallel, as shown in the figure, and the difference from the second embodiment of the present invention is that the third routing 17 and the fourth routing 18 horizontally connect the second solar cell layer 24 and the flexible circuit board 14.

[0050] The reasons for setting the first gap D1 and the second gap D2 in the fourth embodiment of the present invention have been explained in the first embodiment of the present invention, and thus will not be repeated here.

[0051] In the fourth embodiment of the present invention, the first solar cell layer 22 and the second solar cell layer 24 may be electrically connected to each other through wiring.

[0052] Continuing from the above, the fourth embodiment of the present invention provides a better power generation environment for the solar cell by adding a second solar cell 24 in the electrical connection area 20, compared with the conventional method, through a larger light-receiving area, so that the solar cell can provide more environmentally friendly energy. The structure of the second embodiment of the present invention sets the second solar cell layer 24 in the electrical connection area 20. Since the position where the polarizing layer 50 is set does not cover the second solar cell layer 24, it will not be affected by the polarizing layer 50, thereby reducing the power generation efficiency of the second solar cell layer 24, and can allow light to directly irradiate the second solar cell layer 24 to improve the power generation efficiency.

[0053] Next Read Figure 6 , which is a schematic diagram of the structure of the fifth embodiment of the present invention, as shown in the figure, the structure includes: the optical substrate 1, which includes: the display area 10; the first solar cell layer 22, which is arranged in the display area 10 and on the optical substrate 1, and covers an outer side of the color filter layer 40; the electrical connection area 20, which is adjacent to the display area 10 and arranged above the optical substrate 1, the flexible circuit board 14, which is arranged in the electrical connection area 20 and on the optical substrate 1; the second solar cell layer 24, which is arranged in the electrical connection area 20 and on the optical substrate 1, and is adjacent to the first solar cell layer 22. The third trace 17 is used to connect the second solar cell layer 24 and the flexible circuit board 14, and transmit the electric energy generated by the second solar cell layer 24 to the flexible circuit board 14; and the fourth trace 18 is used to connect the second solar cell layer 24 and the flexible circuit board 14, and transmit the electric energy generated by the second solar cell layer 24 to the flexible circuit board 14. As shown in the figure, it is different from the second embodiment of the present invention in that the third trace 17 and the fourth trace 18 simultaneously connect the second solar cell layer 24 and the flexible circuit board 14 horizontally and vertically.

[0054] The reasons for setting the first gap D1 and the second gap D2 in the fifth embodiment of the present invention have been explained in the first embodiment of the present invention, and thus will not be repeated here.

[0055] In the fifth embodiment of the present invention, the first solar cell layer 22 and the second solar cell layer 24 may be electrically connected to each other through wiring.

[0056] Continuing from the above, the fifth embodiment of the present invention provides a better power generation environment for the solar cell by adding a second solar cell 24 in the electrical connection area 20, compared with the conventional method, through a larger light-receiving area, so that the solar cell can provide more environmentally friendly energy. The structure of the second embodiment of the present invention sets the second solar cell layer 24 in the electrical connection area 20. Since the position where the polarizing layer 50 is set does not cover the second solar cell layer 24, it will not be affected by the polarizing layer 50, thereby reducing the power generation efficiency of the second solar cell layer 24, and can allow light to directly irradiate the second solar cell layer 24 to improve the power generation efficiency.

[0057] Next Read Figure 7 , which is a schematic diagram of the structure of the sixth embodiment of the present invention, as shown in the figure, its structure includes: the optical substrate 1, which includes: the display area 10; the first solar cell layer 22, which is arranged in the display area 10 and on the optical substrate 1, and covers an outer side of the color filter layer 40; the third wiring 17, which is used to connect the first solar cell layer 22 and the flexible circuit board 14, and transmit the electric energy generated by the first solar cell layer 22 to the flexible circuit board 14; the fourth wiring 18, which is used to connect the first solar cell layer 22 and the flexible circuit board 14, and transmit the electric energy generated by the first solar cell layer 22 to the flexible circuit board 14; the electrical connection area 20, which is adjacent to the display area 10 and arranged above the optical substrate 1, the flexible circuit board 14, which is arranged in the electrical connection area 20 and on the optical substrate 1; the second solar cell layer 24, which is arranged in the electrical connection area 20 and on the optical substrate 1, and adjacent to The first solar cell layer 22; the third trace 17, which is used to connect the second solar cell layer 24 and the flexible circuit board 14, and transmit the electric energy generated by the second solar cell layer 24 to the flexible circuit board 14; and the fourth trace 18, which is used to connect the second solar cell layer 24 and the flexible circuit board 14, and transmit the electric energy generated by the second solar cell layer 24 to the flexible circuit board 14. As shown in the figure, the sixth embodiment of the present invention is different from the second embodiment of the present invention in that the third trace 17 and the fourth trace 18 are electrically connected to the first solar cell layer 22, so that the electric energy generated by the first solar cell layer 22 does not need to be transmitted to the flexible circuit board 14 through the second solar cell layer 24 in series or parallel through the first solar cell layer 22, and can be directly transmitted to the flexible circuit board 14 through the third trace 17 and the fourth trace 18, so as to reduce the power loss of the transmitted electric energy and indirectly increase the power supply of the solar cell.

[0058] The reasons for setting the first gap D1 and the second gap D2 in the sixth embodiment of the present invention have been explained in the first embodiment of the present invention, and thus will not be repeated here.

[0059] Continuing from the above, the sixth embodiment of the present invention provides a better power generation environment for the solar cell by adding a second solar cell 24 in the electrical connection area 20, compared with the conventional method, the solar cell can provide more environmentally friendly energy through a larger light receiving area. In addition, the structure of the second embodiment of the present invention sets the second solar cell layer 24 in the electrical connection area 20. Since the position where the polarizing layer 50 is set does not cover the second solar cell layer 24, it will not be affected by the polarizing layer 50, thereby reducing the power generation efficiency of the second solar cell layer 24, allowing light to directly irradiate the second solar cell layer 24 to improve the power generation efficiency. In addition, by electrically connecting the third wiring 17 and the fourth wiring 18 to the first solar cell layer 22, the electric energy generated by the first solar cell layer 22 does not need to be transmitted to the flexible circuit board 14 through the second solar cell layer 24 in a series or parallel manner through the first solar cell layer 22, and can be directly transmitted to the flexible circuit board 14 through the third wiring 17 and the fourth wiring 18, so as to reduce the power loss of the transmitted electric energy and indirectly increase the power supply of the solar cell.

[0060] Next Read Figure 8, which is a schematic diagram of the structure of the seventh embodiment of the present invention, as shown in the figure, the structure includes: the optical substrate 1, which includes: the display area 10; the first solar cell layer 22, which is arranged in the display area 10 and on the optical substrate 1, and covers an outer side of the color filter layer 40; the third wiring 17, which is used to connect the first solar cell layer 22 and the flexible circuit board 14, and transmit the electric energy generated by the first solar cell layer 22 to the flexible circuit board 14; the fourth wiring 18, which is used to connect the first solar cell layer 22 and the flexible circuit board 14. The first solar cell layer 22 and the flexible circuit board 14 are connected to each other, and the electric energy generated by the first solar cell layer 22 is transmitted to the flexible circuit board 14; the electrical connection area 20 is adjacent to the display area 10 and is arranged above the optical substrate 1, and the flexible circuit board 14 is arranged in the electrical connection area 20 and on the optical substrate 1; the second solar cell layer 24 is arranged in the electrical connection area 20 and on the optical substrate 1, and is adjacent to the first solar cell layer 22; the third wiring 17 is used to connect the second The solar cell layer 24 and the flexible circuit board 14 are connected, and the electric energy generated by the second solar cell layer 24 is transmitted to the flexible circuit board 14; and the fourth trace 18 is used to connect the second solar cell layer 24 and the flexible circuit board 14, and transmit the electric energy generated by the second solar cell layer 24 to the flexible circuit board 14. As shown in the figure, the seventh embodiment of the present invention is different from the second embodiment of the present invention in that the third trace 17 and the fourth trace 18 are electrically connected to the first solar cell layer 22, so that the electric energy generated by the first solar cell layer 22 does not need to be transmitted to the flexible circuit board 14 through the second solar cell layer 24 in series through the first solar cell layer 22, and can be directly transmitted to the flexible circuit board 14 through the third trace 17 and the fourth trace 18, so as to reduce the power loss of the transmitted electric energy and indirectly increase the power supply of the solar cell, and the seventh embodiment of the present invention is different from the sixth embodiment of the present invention in that the third trace 17 and the fourth trace 18 horizontally connect the second solar cell layer 24 and the flexible circuit board 14.

[0061] The reasons for setting the first gap D1 and the second gap D2 in the seventh embodiment of the present invention have been explained in the first embodiment of the present invention, and thus will not be repeated here.

[0062] Continuing from the above, the seventh embodiment of the present invention provides a better power generation environment for the solar cell by adding a second solar cell 24 in the electrical connection area 20, compared with the conventional method, the solar cell can provide more environmentally friendly energy through a larger light receiving area. In addition, the second embodiment of the present invention sets the second solar cell layer 24 in the electrical connection area 20. Since the polarizing layer 50 is set at a position that does not cover the second solar cell layer 24, it will not be affected by the polarizing layer 50, thereby reducing the power generation efficiency of the second solar cell layer 24, allowing light to directly irradiate the second solar cell layer 24 to improve the power generation efficiency. In addition, by electrically connecting the third wiring 17 and the fourth wiring 18 to the first solar cell layer 22, the electric energy generated by the first solar cell layer 22 does not need to be transmitted to the flexible circuit board 14 through the second solar cell layer 24 in a series or parallel manner through the first solar cell layer 22, and can be directly transmitted to the flexible circuit board 14 through the third wiring 17 and the fourth wiring 18, so as to reduce the power loss of the transmitted electric energy and indirectly increase the power supply of the solar cell.

[0063] Next Read Fig. 9, which is a schematic diagram of the structure of the eighth embodiment of the present invention, as shown in the figure, the structure includes: the optical substrate 1, which includes: the display area 10; the first solar cell layer 22, which is arranged in the display area 10 and on the optical substrate 1, and covers an outer side of the color filter layer 40; the third wiring 17, which is used to connect the first solar cell layer 22 and the flexible circuit board 14, and transmit the electric energy generated by the first solar cell layer 22 to the flexible circuit board 14; the fourth wiring 18, which is used to connect the first solar cell layer 22 and the flexible circuit board 14 The first solar cell layer 22 and the flexible circuit board 14 are connected to each other, and the electric energy generated by the first solar cell layer 22 is transmitted to the flexible circuit board 14; the electrical connection area 20 is adjacent to the display area 10 and is arranged above the optical substrate 1, and the flexible circuit board 14 is arranged in the electrical connection area 20 and on the optical substrate 1; the second solar cell layer 24 is arranged in the electrical connection area 20 and on the optical substrate 1, and is adjacent to the first solar cell layer 22; the third wiring 17 is used to connect the second solar cell layer 22 to the display area 10 and the flexible circuit board 14; The eighth embodiment of the present invention is different from the second embodiment of the present invention in that the third trace 17 and the fourth trace 18 are electrically connected to the first solar cell layer 22, so that the electric energy generated by the first solar cell layer 22 does not need to be transmitted to the flexible circuit board 14 through the second solar cell layer 24 in series through the first solar cell layer 22, but can be directly transmitted to the flexible circuit board 14 through the third trace 17 and the fourth trace 18, so as to reduce the power loss of the transmitted electric energy and indirectly increase the power supply of the solar cell, and the eighth embodiment of the present invention is different from the sixth embodiment of the present invention in that the third trace 17 and the fourth trace 18 are simultaneously horizontally connected and vertically connected to the second solar cell layer 24 and the flexible circuit board 14.

[0064] The reasons for setting the first gap D1 and the second gap D2 in the eighth embodiment of the present invention have been explained in the first embodiment of the present invention, and thus will not be repeated here.

[0065] Continuing from the above, the eighth embodiment of the present invention provides a better power generation environment for the solar cell by adding a second solar cell 24 in the electrical connection area 20, compared with the conventional method, the solar cell can provide more environmentally friendly energy through a larger light receiving area. In addition, the second embodiment of the present invention sets the second solar cell layer 24 in the electrical connection area 20. Since the polarizing layer 50 is set at a position that does not cover the second solar cell layer 24, it will not be affected by the polarizing layer 50, thereby reducing the power generation efficiency of the second solar cell layer 24, allowing light to directly irradiate the second solar cell layer 24 to improve the power generation efficiency. In addition, by electrically connecting the third wiring 17 and the fourth wiring 18 to the first solar cell layer 22, the electric energy generated by the first solar cell layer 22 does not need to be transmitted to the flexible circuit board 14 through the second solar cell layer 24 in a series or parallel manner through the first solar cell layer 22, and can be directly transmitted to the flexible circuit board 14 through the third wiring 17 and the fourth wiring 18, so as to reduce the power loss of the transmitted electric energy and indirectly increase the power supply of the solar cell.

[0066] In the above embodiment, the vertical direction is the axial direction from the flexible printed circuit 14 to the first solar cell layer 22 , and the horizontal direction is the axial direction perpendicular to the vertical direction.

[0067] Next Read Figure 7 as well as Fig. 10A , Fig. 10A This is a schematic structural diagram of the first solar cell layer of the present invention. As shown in the figure, the first solar cell layer 22 includes: a first lower electrode layer 222, which is arranged above the optical substrate 1; a first photoelectric conversion layer 224, which is arranged above the first lower electrode layer 222; a first upper electrode layer 226, which is arranged above the first photoelectric conversion layer 224; and a first transmission electrode layer 228, which is arranged above the first upper electrode layer 226, and the first transmission electrode layer 228 is coupled to the third wiring 17 and the fourth wiring 18.

[0068] Next Read Figure 7 as well as Fig. 10B , Fig. 10B This is a schematic structural diagram of the second solar cell layer of the present invention. As shown in the figure, the second solar cell layer 24 includes: a second lower electrode layer 242, which is arranged above the optical substrate 1; a second photoelectric conversion layer 244, which is arranged above the second lower electrode layer 242; a second upper electrode layer 246, which is arranged above the second photoelectric conversion layer 244; and a second transmission electrode layer 248, which is arranged above the second upper electrode layer 246, and the second transmission electrode layer 248 is coupled to the third wiring 17 and the fourth wiring 18.

[0069] Continuing from above, see Fig. 10A as well as Fig. 10B The structure of the third solar cell layer 26 of the present invention is the same as that of the first solar cell layer 22 and the second solar cell layer 24, and will not be described in detail herein.

[0070] Next Read Figure 2A as well as Fig.11A , Fig.11A : is a structural diagram of the flexible circuit board of the present invention, the flexible circuit board 14 further includes: a charging control circuit 142, the charging control circuit is coupled to the third wiring 17 and the fourth wiring 18; a conversion circuit 144, which is coupled to the charging control circuit 142; a storage element 146, which is coupled to the conversion circuit 144, wherein the charging control circuit 142 transmits the electric energy of the first solar cell layer 22 and the second solar cell layer 24 to the conversion circuit 144, and the conversion circuit 144 converts the voltage of the electric energy and outputs the electric energy to the storage element 146 for storage.

[0071] Continuing from the above, the flexible printed circuit board of the present invention can also achieve the same effect through another connection relationship, see Figure 2A as well as Fig. 11B , Fig. 11B This is another structural diagram of the flexible circuit board of the present invention. The flexible circuit board 14 further includes: the conversion circuit 144, the conversion circuit 144 is coupled to the third wiring 17 and the fourth wiring 18; the charging control circuit 142, which is coupled to the conversion circuit 144; the storage element 146, which is coupled to the charging control circuit 142, wherein the electric energy of the first solar cell layer 22 and the second solar cell layer 24 is transmitted to the conversion circuit 144 to convert the voltage of the electric energy and output the electric energy to the charging control circuit 142, and the charging control circuit 142 outputs the electric energy to the storage element 146 for storage.

[0072] Continuing from the above, the flexible printed circuit board of the present invention can also achieve the same effect through another connection relationship, see Figure 2A as well as Fig. 11C , Fig. 11C This is another structural diagram of the flexible circuit board of the present invention. The flexible circuit board 14 further includes: the charging control circuit 142, the charging control circuit 142 is coupled to the third wiring 17 and the fourth wiring 18; the storage element 146 is coupled to the charging control circuit 142; the conversion circuit 144 is coupled to the storage element 146, wherein the electric energy of the first solar cell layer 22 and the second solar cell layer 24 is transmitted to the charging control circuit 142, the charging control circuit 142 outputs the electric energy to the storage element 146 for storage, and the conversion circuit 144 receives the electric energy from the storage element 146 and converts the electric energy into a voltage output when power demand is generated.

[0073] In the above-described embodiments, the present invention manufactures a solar cell structure of a display panel, which connects the first solar cell layer 22 and the second solar cell layer 24 through the third wiring 17 and the fourth wiring 18, so that the first solar cell layer 22 and the second solar cell layer 24 do not need to transmit electrical energy to the flexible circuit board 14 in a series or parallel manner, but instead transmit the electrical energy to the flexible circuit board 14 through the third wiring 17 and the fourth wiring 18, thereby reducing power consumption, and adding the second solar cell layer 24 to the electrical connection area 20, so that the second solar cell layer 24 will no longer affect the display of the display area 10, and more light-receiving area is increased, so that the solar cell can generate more renewable energy, which is then supplied to the flexible circuit board 14. Since the added second solar cell layer 24 is not within the coverage range of the polarizing layer 50, the received light will not be affected by the polarizing layer 50, thereby improving the power generation efficiency.

[0074] The order of execution of each step in the above embodiment does not mean the order of execution. The order of execution of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiment of the present application.

[0075] The above is only a preferred embodiment of the present invention and is not intended to limit the scope of the present invention. All equivalent changes and modifications to the shape, structure, characteristics and spirit described in the claims of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A solar cell structure for a display panel, characterized in that: It contains: an optical substrate; A display area, which is disposed above the optical substrate, comprising: a color filter layer disposed above the optical substrate; a first solar cell layer, which covers an outer side of the color filter layer; a protective layer, which covers an outer side of the first solar cell layer and is disposed on the optical substrate; a liquid crystal layer disposed above the color filter layer and the protective layer; as well as A sealing layer is disposed above the protective layer, and the sealing layer is adjacent to the liquid crystal layer; a polarizing layer, which is arranged corresponding to the display area and is located below the optical substrate; An electrical connection area, which is adjacent to the display area and disposed above the optical substrate, comprises: a flexible printed circuit board disposed above the optical substrate; and a second solar cell layer disposed above the optical substrate, the second solar cell layer disposed between an orthographic projection area of ​​the sealing layer and the flexible circuit board, the second solar cell layer electrically connected to the first solar cell layer and the flexible circuit board, and the protective layer encapsulating an outer side of the second solar cell layer; An array element is disposed above the liquid crystal layer and the sealing layer; as well as An array substrate, disposed above the array element; The flexible circuit board is used to transmit electric energy generated by the first solar cell layer and the second solar cell layer when irradiated with light.

2. The solar cell structure of the display panel according to claim 1, characterized in that: The first solar cell layer is electrically connected to the second solar cell layer through a first wiring and a second wiring.

3. The solar cell structure of the display panel according to claim 1, characterized in that: The first solar cell layer and the second solar cell layer are integrally formed.

4. The solar cell structure of the display panel according to claim 1, characterized in that: It also includes: A third solar cell layer is sandwiched between the optical substrate and the sealing layer. The third solar cell layer is arranged in the orthographic projection area of ​​the sealing layer. The third solar cell layer is electrically connected to the first solar cell layer and the second solar cell layer. The protective layer wraps an outer side of the third solar cell layer.

5. The solar cell structure of the display panel according to claim 4, characterized in that: The first solar cell layer, the second solar cell layer and the third solar cell layer are integrally formed.

6. The solar cell structure of the display panel according to claim 1, characterized in that: The second solar cell layer is at least 0.1 mm away from the flexible circuit board.

7. The solar cell structure of the display panel according to claim 1, characterized in that: The second solar cell layer is electrically connected to the flexible printed circuit board through a third wiring and a fourth wiring.

8. The solar cell structure of the display panel according to claim 7, characterized in that: The second solar cell layer further comprises: a second lower electrode layer disposed above the optical substrate; a second photoelectric conversion layer, which is disposed above the second lower electrode layer; a second upper electrode layer, disposed above the second photoelectric conversion layer; as well as A second transmission electrode layer is disposed above the second upper electrode layer. The second transmission electrode layer is coupled to the third wiring and the fourth wiring.

9. The solar cell structure of the display panel according to claim 7, characterized in that: The first solar cell layer is electrically connected to the flexible circuit board through the third wiring and the fourth wiring.

10. The solar cell structure of the display panel according to claim 9, characterized in that: The first solar cell layer further comprises: a first lower electrode layer, disposed above the optical substrate; a first photoelectric conversion layer, which is disposed above the first lower electrode layer; a first upper electrode layer, disposed above the first photoelectric conversion layer; as well as A first transmission electrode layer is disposed above the first upper electrode layer. The first transmission electrode layer is coupled to the third wiring and the fourth wiring.

11. The solar cell structure of the display panel according to claim 7 or 9, characterized in that: The flexible printed circuit board includes: a charging control circuit, used for transmitting the electric energy generated by the first solar cell layer and the second solar cell layer to a power storage element; The power storage element is coupled to the charging control circuit and is used to store the electric energy generated by the first solar cell layer and the second solar cell layer; as well as A conversion circuit is coupled to the charging control circuit and is used for converting the voltage of the electric energy generated by the first solar cell layer and the second solar cell layer.

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