TW201515206A - Organic light-emitting display with photovoltaic cell - Google Patents

Abstract

An organic light-emitting display with a photovoltaic cell includes a substrate, at least one organic light-emitting unit, and at least one photovoltaic cell unit. The organic light-emitting unit is disposed on a side of the substrate, including a first electrode layer, an organic light-emitting material layer, and a second electrode layer. The organic light-emitting material layer is disposed between the first electrode layer and the second electrode layer, and the first electrode layer is disposed between the organic light-emitting material layer and the substrate. The photovoltaic cell unit is disposed on a side of the substrate and includes a third electrode layer and an organic photovoltaic material layer which is disposed between the third electrode layer and the second electrode layer.

Description

Organic light emitting display with solar battery

The present invention relates to an organic light emitting display having a solar cell, and more particularly to an organic light emitting display having an organic photovoltaic cell (OPV cell).

An organic light-emitting display (OLED) is an organic light-emitting material applied to an array display panel, and the effect of displaying different brightness is achieved by controlling the magnitude of the driving current. The organic light-emitting display has great advantages in power saving, low viewing angle limitation, low manufacturing cost, fast response speed, large operating temperature range, and miniaturization and thinning with hardware devices. Development potential. However, the illuminating utilization efficiency of the conventional organic light-emitting display is still not high, and the reason is that the general organic luminescent material has a relatively high refractive index, so that the generated light is likely to be totally reflected without being emitted from the organic light-emitting display, resulting in waste of energy. In addition, in order to prevent the ambient light source from being incident on the organic light emitting display and being reflected by the metal electrode therein to affect the display effect, the surface of the conventional organic light emitting display must also be additionally attached with a circular polarizer to increase the thickness and cost.

One of the objects of the present invention is to provide an organic light emitting display having an organic solar cell to achieve power saving.

To achieve the above object, the present invention provides an organic light emitting display having a solar cell, comprising a substrate, at least one organic light emitting unit, and at least one solar battery unit. organic The light emitting unit is disposed on a surface of the substrate, and includes a first electrode layer, an organic light emitting material layer, and a second electrode layer, wherein the organic light emitting material layer is disposed between the first electrode layer and the second electrode layer. The first electrode layer is disposed between the organic light emitting material layer and the substrate. The solar cell unit is disposed on one side of the substrate, and includes a third electrode layer and an organic solar cell material layer, and the organic solar cell material layer is disposed between the second electrode layer and the third electrode layer.

The organic light emitting display of the present invention comprises an organic solar cell disposed on the light emitting side of the organic light emitting unit. Since the organic solar cell can provide a color filter-like effect, the brightness of the conventional organic light emitting display is not significantly affected, and the light can be directly absorbed. The light of the organic light-emitting display and the ambient light rays incident from the outside are not emitted, and the light energy is converted into electrical energy, thereby improving the problem of energy consumption, and the organic light-emitting display of the present invention does not need to additionally provide a circular polarizer, thereby saving cost.

10‧‧‧Organic light-emitting display

12‧‧‧Substrate

12a‧‧‧Substrate surface

14, 16, 18‧‧‧ first electrode layer

20‧‧‧Reflective conductive layer

22, 24, 26‧‧‧ layers of organic light-emitting materials

28, 30, 32‧‧‧ second electrode layer

34‧‧‧Transparent conductive layer

36, 38, 40‧‧‧ Organic solar cell material layer

42, 44, 46‧‧‧ surface plasmon layer

48, 50, 52‧‧‧ third electrode layer

54‧‧‧Protective layer

56‧‧‧First organic light unit

58‧‧‧Second organic light-emitting unit

60‧‧‧The third organic light unit

62, 64, 66‧‧‧ solar cells

68‧‧‧ first pixel structure

70‧‧‧second pixel structure

72‧‧‧ Third pixel structure

74‧‧‧Adhesive layer

76‧‧‧fourth electrode layer

78‧‧‧layer of organic light-emitting material

80‧‧‧Black matrix layer

82, 84, 86‧‧‧ wires

88‧‧‧Regulator

90, 92, 94‧‧‧ organic light-emitting display

96a, 96b, 96c‧‧‧ organic solar cell material layer

1 is a schematic cross-sectional view showing a first embodiment of an organic light emitting display having a solar cell of the present invention.

Figure 2 is a schematic diagram of the absorption spectrum curve of the CuPc material.

Fig. 3 is a circuit diagram showing the connection of the pixel structures of the organic light-emitting display shown in Fig. 1.

4 is a cross-sectional view showing a second embodiment of an organic light emitting display having a solar cell of the present invention.

Figure 5 is a cross-sectional view showing a third embodiment of an organic light emitting display having a solar cell of the present invention.

Figure 6 is a cross-sectional view showing a fourth embodiment of an organic light emitting display having a solar cell of the present invention.

Please refer to FIG. 1. FIG. 1 is a cross-sectional view showing a first embodiment of an organic light emitting display having a solar cell according to the present invention. The organic light emitting display 10 of the present invention comprises a substrate 12, such as a glass substrate, on which a plurality of pixel structures are arranged in an array. In this embodiment, the first pixel structure 68, the second pixel structure 70, and The third pixel structure 72 exemplifies a first pixel structure 68 for generating red light, a second pixel structure 70 for generating green light, and a third pixel structure 72 for generating blue light. The first pixel structure 68, the second pixel structure 70, and the third pixel structure 72 respectively include a first organic light emitting unit 56, a second organic light emitting unit 58, and a third organic light emitting unit 60. The first organic light emitting unit 56 includes a first electrode layer 14 , an organic light emitting material layer 22 , and a second electrode layer 28 disposed on the surface 12 a of the substrate 12 from bottom to top, that is, the organic light emitting material layer 22 . The first electrode layer 14 is disposed between the first electrode layer 14 and the second electrode layer 28 , and the first electrode layer 14 is disposed between the organic light emitting material layer 22 and the substrate 12 . The second organic light emitting unit 58 includes a first electrode layer 16, an organic light emitting material layer 24, and a second electrode layer 30 which are sequentially disposed on the surface 12a of the substrate 12 from bottom to top. The third organic light emitting unit 50 includes a first electrode layer 18, an organic light emitting material layer 26, and a second electrode layer 32 which are sequentially disposed on the surface 12a of the substrate 12 from bottom to top. For example, the organic light emitting display 10 of the present embodiment is a top emission type organic light emitting display, and the first electrode layers 14, 16, 18 are respectively used as the first organic light emitting unit 56 and the second organic light emitting unit 58. And the anode of the third organic light emitting unit 60 may include an opaque and reflective conductive material, such as a metal material such as silver, and is preferably composed of the same reflective conductive layer 20, and the second electrode layers 28, 30, 32 respectively As the cathodes of the first organic light emitting unit 56, the second organic light emitting unit 58, and the third organic light emitting unit 60, a transparent conductive material such as indium tin oxide may be included, and preferably composed of the same transparent conductive layer 34, but not This is limited. In addition, the organic light-emitting material layer 22, the organic light-emitting material layer 24, and the organic light-emitting material layer 26 respectively comprise organic light-emitting materials capable of generating red light, green light, and blue light, so the materials included in the three are preferably not identical, but Not limited to this.

The organic light emitting display 10 further includes a plurality of solar battery cells 62, 64, 66. The first organic light emitting unit 56, the second organic light emitting unit 58, and the third organic light emitting unit 60 are disposed respectively. The solar cell unit 62 includes an organic solar cell material layer 36 disposed on the second electrode layer 28 and a third electrode layer 48 disposed on the solar cell material layer 36, that is, the solar cell material layer 36 is located on the third electrode layer 48. Between the second electrode layer 28. In addition, the solar cell unit 62 can optionally further include a surface plasmon polar polariton (SPP) layer 42 disposed between the organic solar cell material layer 36 and the third electrode layer 48. Similarly, solar cell unit 64 includes an organic solar cell material layer 38 disposed over second electrode layer 30, a selective surface plasmon layer 44 disposed on organic solar cell material layer 38, and a third The electrode layer 50 is disposed on the surface plasmon layer 44, and the solar cell unit 66 includes an organic solar cell material layer 40, a selective surface plasmon layer 46, and a third electrode layer 52 from bottom to top. The second electrode layer 32 is sequentially disposed. In the present embodiment, the third electrode layers 48, 50, 52 are respectively used as anodes of the solar cell units 62, 64, 66, which are preferably transparent conductive materials, such as indium tin oxide, and the solar cell units 62, 64. The third electrode layers 48, 50, 52 of 66 may preferably be formed of the same transparent conductive layer or by the same process. In addition, as shown in the figure, the second electrode layers 28, 30, 32 can also be regarded as one of the solar cell units 62, 64, 66 of the present embodiment, respectively, as the cathodes of the solar cell units 62, 64, 66, respectively. That is, in the first pixel structure 68, the solar cell unit 62 is co-cathode with the first organic light emitting unit 56. In the second pixel structure 70, the solar cell unit 64 and the second organic light emitting unit 58 are common cathodes. In the third pixel structure 72, the solar cell unit 66 and the third organic light emitting unit 60 are common cathodes. Moreover, in a preferred embodiment, the organic light emitting display 10 can optionally include a protective layer 54 disposed on the surface of the solar cell units 62, 64, 66.

The material of the organic solar cell material layers 36, 38, 40 of the present embodiment is exemplified by poly(3-hexylthiophene) (P3HT), and the chemical structural formula is ) with phenyl-C61-butyric acid methyl ester (phenyl-C ₆₁ -butyric-acid-methyl-ester, PCBM, chemical structural formula A film formed by a mixed material (hereinafter referred to as P3HT: PCBM) in which P3HT is used as a donor and PCBM is used as a receptor as an active layer of an organic solar cell. In addition, since P3HT:PCBM absorbs blue and green light better, in the preferred embodiment of the present invention, P3HT:PCBM in organic solar cell material layers 36, 38, 40 can be doped with a dye complementary to its absorption spectrum. Such as phthalocyanine materials such as copper Phthalocyanine (CuPc). Taking CuPc as an example, please refer to Figure 2, which depicts the absorption spectrum of CuPc material. Since CuPc absorbs red and infrared light better than P3HT:PCBM, P3HT:PCBM doped with CuPc can simultaneously absorb Red, blue, green and infrared. Furthermore, in a preferred embodiment of the invention, the organic solar cell material layers 36, 38, 40 may have a thickness of only about 50 nanometers to 100 nanometers, at which the doped phthalocyanine is doped Material P3HT: PCBM can absorb red, blue, green and infrared light at the same time, but organic solar cell material layers 36, 38, 40 can be regarded as half transparent material layer, which can make the first, second and third organic below Most of the red, green, and blue light generated by the light-emitting units 56, 58, 60 pass through to display a picture.

In another aspect, the surface plasmon layers 42, 44, 46 of the present invention can comprise various nano-sized metal or semiconductor arrays, such as gold or silver particles comprising nanometer sizes, capable of causing incident light in organic solar cell materials. The surface of the layers 36, 38, 40 forms a standing wave, The absorption efficiency and power generation efficiency of the organic solar cell material layers 36, 38, 40 are improved. In a preferred embodiment, the thickness of the surface plasmon layers 42, 44, 46 is related to the size of the nano metal contained therein. For example, the particle size of the nano gold particles is preferably about 30 to 60 nm. The particle size of the nano silver particles is preferably about 50 to 100 nm, but not limited thereto. It can be seen from the above that by the cooperation of the surface plasmon layers 42, 44, 46 and the organic solar cell material layers 36, 38, 40, only a very thin organic solar cell material layer 36, 38, 40 can be achieved. The light absorption rate and power generation efficiency can save the material cost of the organic solar battery. It is noted that since the surface plasmon layers 42, 44, 46 are disposed on the upper side of the organic solar cell material layers 36, 38, 40, the surface plasmon layers 42, 44, 46 can be effectively The ambient light that is externally incident on the organic light-emitting display 10 (that is, the ambient light incident from the upper side in FIG. 1) forms a standing wave, which is absorbed and converted into electric energy by the organic solar cell material layers 36, 38, 40, and the environment can be greatly reduced. The light is reflected by the bottom first electrode layers 14, 16, 18 to affect the display effect. Therefore, the organic light-emitting display 10 of the present invention can effectively avoid the reflection of ambient light without the circular polarizer in the conventional organic light-emitting display. On the other hand, because the thickness of the organic solar cell material layers 36, 38, 40 is very thin, the light generated by the lower first, second, and third organic light-emitting units 56, 58, 60 is substantially not Absorbed by the solar cells 62, 64, 66, the organic light emitting display 10 can be emitted upward through the solar cells 62, 64, 66 to display a picture. Taking the first pixel structure 68 as an example, most of the red light generated by the organic light-emitting material layer 22 can be emitted upward through the solar cell unit 62 to display a picture, and the second and third pixel structures 70 and 72 have similar conditions. Therefore, it will not be repeated. Therefore, the solar battery cells 62, 64, 66 of the present invention have a single-side filtering effect, allowing the light generated by the lower first, second, and third organic light-emitting units 56, 58, 60 to pass through and be emitted from the upper side. The ambient light that is incident on the organic light emitting display 10 from the upper side is absorbed.

Furthermore, in other embodiments, the surface plasmon layers 42, 44, 46 may additionally comprise a hole injection material of an organic solar cell, such as polyethylene dioxet/polyphenyl. Polyethylene dioxythiophene/polystyrene sulphonate (PEDOT: PSS), even if the surface plasmonic material and the hole injection material are combined into the same layer, as a buffer layer of solar cells 62, 64, 66, of which PEDOT :PSS enables the separated holes to flow efficiently to the anode and blocks the flow of electrons to the anode to improve power generation efficiency. Moreover, in other embodiments, the organic solar cell material layers 36, 38, 40 of the first, second, and third pixel structures 68, 70, 72 can comprise different materials, such as doped different dyes, such that The organic solar cell material layers 36, 38, 40 function as color filters, for example, the organic solar cell material layers 36, 38, 40 have red, green, and blue filters, respectively. The material of the associated organic solar cell material layers 36, 38, 40 will be described in more detail in the third embodiment of the invention. In addition, the organic light emitting display 10 of the present invention may further comprise a substrate or other protective layer disposed on the upper side of the substrate 12, and a switching element including the first, second, and third organic light emitting units 56, 58, 60, and a component such as a wire. The surface of the substrate 12, as it is not the main disclosure of the present invention, is not shown in the drawings and will be described in detail.

Please refer to FIG. 3, which is a schematic diagram showing the circuit connection of each pixel structure in the organic light emitting display 10 shown in FIG. 1. The organic light emitting display 10 of the present embodiment includes a plurality of pixel structures arranged in an array. In order to make the drawings simple and easy to understand, only two first pixel structures 68 and two second are shown in FIG. The top view structure of the pixel structure 70 and the two third pixel structures 72 is representative for illustration. As shown in FIG. 3, the adjacent first pixel structure 68, second pixel structure 70, and third pixel structure 70 are separated by a black matrix layer 80. The solar cells 62 in the first pixel structures 68 in this embodiment are connected in parallel with each other by wires 82, and are electrically connected to the regulator 88. The solar cells 64 in each of the second pixel structures 70 are The wires 84 are connected in parallel with each other and are electrically connected to the regulator 88. The solar cells 66 in the third pixel structure 72 are connected in parallel to each other by wires 86 and are electrically connected to the regulator 88. That is, the solar cell unit 62 of each of the first pixel structures 68, the solar cell units 64 of the respective second pixel structures 70, and the solar cell units 66 of the respective third pixel structures 72 are each independently connected in parallel. Under this design, different colors can be avoided In the pixel structure, energy consumption occurs due to the difference in the wavelength of the absorbed light, but it is not limited thereto. As can be seen from the above, since the solar battery unit 62, the solar battery unit 64, and the solar battery unit 66 mainly absorb various ambient light incident from the upper side, in another preferred embodiment, each of the first pixel structures 68 and the second The solar cell unit 62, the solar cell unit 64, and the solar cell unit 66 in the pixel structure 70 and the third pixel structure 72 may also be connected in parallel and electrically connected to the regulator 88 by the same wire system.

The organic light emitting display having the solar cell of the present invention is not limited to the above embodiment. The other embodiments and variations of the present invention are disclosed in the following, and the same reference numerals are used to refer to the same elements, and the repeated parts are not described again.

Please refer to FIG. 4, which is a cross-sectional view showing a second embodiment of the organic light emitting display having the solar cell of the present invention. The difference between the organic light emitting display 90 having the solar cell and the previous embodiment is that each of the solar cells 62, 64, 66 includes a fourth electrode layer 76 respectively disposed on the organic solar cell material layer 36 and the second Between the electrode layers 28, between the organic solar cell material layer 38 and the second electrode layer 30, and between the organic solar cell material layer 40 and the second electrode layer 32, respectively, as solar cell units 62, 64 , 66 cathode. Therefore, in the present embodiment, the solar battery cells 62, 64, 66 and the first, second, and third organic light-emitting display units 56, 58, 60 do not share a cathode. In addition, an adhesive layer 74 is disposed between the solar cell units 62, 64, 66 of the embodiment and the first, second, and third organic light emitting display units 56, 58, 60 for respectively connecting the solar battery cells 62, 64. And 66 are fixed on the first, second, and third organic light emitting display units 56, 58, and 60. In other variations of the embodiment, the solar cell units 62, 64, 66 and the first, second, and third organic light-emitting display units 56, 58, 60 may not be provided with any adhesive layer, for example, between the two. Only air exists, but not limited to this.

Please refer to FIG. 5. FIG. 5 is a cross-sectional view showing a third embodiment of an organic light emitting display having a solar cell according to the present invention. In the organic light emitting display 92 having a solar cell of the present invention, the first, second, and third organic light emitting units 56, 58, 60 all generate white light, and thus the first, second, and third organic light emitting units 56, 58, 60 The organic light-emitting material layer 78 included may have the same material, that is, a material that generates white light after being turned on via the cathodes 28, 30, 32 and the anodes 14, 16, 18. Under this design, in order to make the first, second and third pixel structures 68, 70, 72 still generate red, green and blue light respectively, the organic solar cell material layer 96a of the solar cell units 62, 64, 66 96b, 96c are used as red, green, and blue filters in the first, second, and third pixel structures 68, 70, 72, respectively, and thus in the preferred embodiment The thickness thereof may be greater than the thickness of the organic solar cell material layer in the foregoing embodiment, for example, a thickness of about 500 to 100 nm.

In the present embodiment, the organic solar cell material layer 96a as a red light filter may comprise a P3HT:PCBM material which is better for blue and green light absorption, and more preferably a P3HT:PCBM material mixed with several different thiophenes ( Formed by a C60 derivative of thiophene), for example, in the chemical formula ([6,6]phenyl-C61-butyric acid 2-(2',2":5",2'''-terthiophene-5'-yl)ethyl ester,PCBTTE), ([6,6]phenyl-C61-butyric acid 2-(2',2"-bithiophene-5'-yl)ethyl ester, PCBBTE) and The material of [6,6]phenyl-C61-butyric acid 2-(2'-thienyl)ethyl ester, PCBTE) is mixed with P3HT:PCBM, and the formed organic solar cell material layer 96a can effectively absorb the wavelength of about 450 to The blue light of 520 nm and the green light having a wavelength of about 520 to 622 nm penetrates red light having a wavelength of about 622 to 700 nm. The preparation method can be used as an interface agent in different proportions of PCBTTE, PCBBTE and PCBTE, and mixed with P3HT:PCBM to form a solution, which is then coated on the substrate and annealed to form an organic solar cell material layer 96a. On the other hand, the material of the organic solar cell material layer 96b as the green light filter is preferably a P3HT:PCBM material containing a dye CuPC capable of absorbing blue light having a wavelength of about 450 to 520 nm and having a wavelength of about 622. To 700 nm red light, and let the green light with a wavelength of about 520 to 560 nm penetrate. It is made by P3HT:PCBM as the main body, plus CuPC dye to absorb red and blue light. Similarly, the material of the organic solar cell material layer 96c as a blue light filter preferably contains a dye (C41H53FO4S4)n (the structural formula is ,Poly[[4,8-bis[(2-ethylhexyl)oxy]benzo[1,2-b:4,5-b']dithiophene-2,6-diyl][3-fluoro-2-[(2 -ethylhexyl)carbonyl]thieno[3,4-b]thiophenediyl]], PTB7) P3HT: PCBM material capable of absorbing green light having a wavelength of about 520 to 622 nm and a red wavelength of about 622 to 700 nm. Light and let the blue light penetrate at a wavelength of about 450 to 520 nm. Under this design, the organic solar cell material layers 96a, 96b, and 96c are simultaneously used as color filters in the respective pixel structures, and thus the first, second, and third organic light-emitting units 56, 58, 60 are The organic light-emitting material layer 78 generates white light, but after passing through the organic solar cell material layers 96a, 96b, and 96c, the white light is absorbed by the partial wavelength light by the first, second, and third pixel structures 68, 70, respectively. 72 respectively emits red, green and blue light. Taking the first pixel structure 68 as an example, after the white light generated by the first organic light emitting unit 56 passes through the organic solar cell material layer 96a, since the organic solar cell material layer 96a absorbs blue light and green light, the light is emitted upward. Only red light. Therefore, the organic solar cell material layers 96a, 96b, and 96c of the present embodiment can balance the functions of filtering and power generation, whereby the organic light emitting display 92 does not need to additionally provide a conventional color filter, thereby saving the thickness of the film layer and achieving Reduce energy loss.

It is worth noting that since the organic solar cell material layers 96a, 96b, and 96c, which are color filters, respectively absorb light of different wavelengths, the current or the voltage of the conversion is also different, so in order to avoid the series connection The resulting energy loss, the circuit connection of the organic light emitting display 92 can be as shown in FIG. 3, that is, the solar cell unit 62 in the first pixel structure 68, the solar cell unit 64 in the second pixel structure 70, and The power generation circuits of the solar cells 66 in the third pixel structure 72 are preferably connected in parallel with each other, but are not limited thereto. In addition, the solar battery cells 62, 64, and 66 of the organic light-emitting display 92 of the present embodiment share the second electrode layers 28, 30, and 32 as cathodes with the first, second, and third organic light-emitting units 56, 58, and 60, respectively. The organic light emitting display 92 does not include the protective layer 54 shown in FIG. However, in other variations of this embodiment, the organic light emitting display 92 may also optionally include a protective layer disposed on the upper side of the solar cell units 62, 64, 66.

Please refer to FIG. 6. FIG. 6 is a cross-sectional view showing a fourth embodiment of an organic light emitting display having a solar cell according to the present invention. Different from the third embodiment, the solar battery cells 62, 64, 66 of the organic light-emitting display 94 of the present embodiment further comprise a fourth electrode layer 76 as the cathodes of the solar battery cells 62, 64, 66, respectively. Therefore, the cathodes of the solar battery cells 62, 64, 66 and the cathodes (second electrode layers 28, 30, 32) of the first, second, and third organic light-emitting units 56, 58, 60 are each independent. In addition, the solar battery units 62, 64, 66 of the present embodiment can be used as The cap layers of the first, second, and third organic light-emitting units 56, 58, 60 are disposed directly on the upper side of the organic light-emitting units 56, 58, 60. However, in other variations, the solar battery cells 62 are provided. An adhesive layer may be additionally disposed between 64, 66 and the first, second, and third organic light-emitting units 56, 58, 60 to fix the solar battery cells 62, 64, 66 to the first, second, and third organic light-emitting devices. Above the units 56, 58, 60.

Please also note that the above description of the arrangement on the surface of the substrate does not limit that each film layer or component in the solar cell must be directly in contact with the surface of the substrate.

It can be seen from the above that the organic light-emitting display having the solar cell of the present invention is combined with the semi-transparent organic solar cell material film by the surface plasmonic layer and disposed on the upper side of the organic light-emitting unit, and can be reused by the organic light-emitting unit. However, the light of the organic light-emitting display is not emitted, and the absorption is converted into electric energy. At the same time, the ambient light incident from the outside can be absorbed, and the reflection of the ambient light is prevented from affecting the display effect, thereby replacing the function of the circular polarizer in the conventional display. Furthermore, by providing a surface plasmon layer, the light absorbing effect and energy utilization efficiency of the organic solar cell material can be effectively improved, so that it is not necessary to provide a thick organic solar cell material layer. Accordingly, according to the structure of the organic light emitting display having the solar cell of the present invention, the material cost and the film thickness can be reduced while improving the energy consumption problem.

The above are only the preferred embodiments of the present invention, and all changes and modifications made to the scope of the present invention should be within the scope of the present invention.

10‧‧‧Organic light-emitting display

12‧‧‧Substrate

12a‧‧‧Substrate surface

14, 16, 18‧‧‧ first electrode layer

20‧‧‧Reflective conductive layer

22, 24, 26‧‧‧ layers of organic light-emitting materials

28, 30, 32‧‧‧ second electrode layer

34‧‧‧Transparent conductive layer

36, 38, 40‧‧‧ Organic solar cell material layer

42, 44, 46‧‧‧ surface plasmon layer

48, 50, 52‧‧‧ third electrode layer

54‧‧‧Protective layer

56‧‧‧First organic light unit

58‧‧‧Second organic light-emitting unit

60‧‧‧The third organic light unit

62, 64, 66‧‧‧ solar cells

68‧‧‧ first pixel structure

70‧‧‧second pixel structure

72‧‧‧ Third pixel structure

Claims (12)

An organic light emitting display having an organic photovoltaic cell (OPV cell) includes: a substrate; at least one organic light emitting unit is disposed on one side of the substrate, the organic light emitting unit includes a first electrode layer and an organic light emitting material a layer and a second electrode layer disposed between the first electrode layer and the second electrode layer, the first electrode layer being disposed between the organic light emitting material layer and the substrate; and at least one a solar cell unit disposed on one side of the substrate, the solar cell comprising: a third electrode layer; and an organic solar cell material layer disposed on the second electrode layer and the third electrode layer between. An organic light emitting display having a solar cell according to claim 1, further comprising a surface plasomon polariton (SPP) layer disposed between the organic solar cell material layer and the third electrode layer. An organic light emitting display having a solar cell according to claim 2, wherein the surface plasmon layer further comprises a hole injecting material to simultaneously serve as a hole injection layer of the solar cell. An organic light emitting display having a solar cell according to claim 1, wherein the second electrode layer and the third electrode layer respectively comprise a transparent conductive material. An organic light emitting display having a solar cell according to claim 1, wherein the second electrode layer is used to simultaneously serve as a cathode of the organic light emitting unit and the solar battery unit, and the first electrode layer and the third electrode The layer is used as the anode of the organic light emitting unit and the solar cell The anode of the yuan. The organic light emitting display with a solar cell according to claim 1, wherein the organic solar cell further comprises a fourth electrode layer disposed between the second electrode layer and the organic solar cell material layer, and the fourth electrode The layer is used as the cathode of the solar cell. An organic light emitting display having a solar cell according to claim 6, wherein the fourth electrode layer comprises a transparent conductive material. An OLED display having a solar cell according to claim 6, further comprising an adhesive layer disposed between the fourth electrode layer and the second electrode layer for fixing the solar cell unit to the organic light emitting unit Above. An organic light emitting display having a solar cell according to claim 1, wherein the substrate is provided with at least a first pixel structure, at least a second pixel structure, and at least a third pixel structure, and the first pixel The structure, the second pixel structure, and the third pixel structure respectively comprise an organic light emitting unit and a solar cell unit, wherein the first pixel structure, the second pixel structure, and the third pixel structure are respectively Used to generate different primary colors to display the picture. An organic light emitting display having a solar cell according to claim 9, wherein the organic light emitting unit in the first pixel structure is used to generate red light, and the organic light emitting unit in the second pixel structure is used to generate green Light, and the organic light emitting unit in the third pixel structure is used to generate blue light, and each of the first, second, and third pixel structures can be associated with each of the organic light emitting units The generated light is emitted toward the third electrode layer, and absorbs light incident from the outside of the organic light emitting display to be converted into electric energy. An organic light emitting display having a solar cell according to claim 9, wherein the first and second And the organic light emitting unit in the third pixel structure can generate white light, and the organic solar cell material layer in the first pixel structure is used as a red light filter, wherein the second pixel structure is The organic solar cell material layer is used as a green light filter, and the organic solar cell material layer in the third pixel structure is used as a blue light filter. An organic light emitting display having a solar cell according to claim 9, comprising a plurality of the first pixel structures, a plurality of the second pixel structures, and a plurality of the third pixel structures arranged in an array, wherein the array And the solar cells in the first pixel structure, the solar cells in the second pixel structure, and the power generating circuits of the solar cells in the third pixel structure are connected in parallel with each other. .