Abstract:
The present invention provides an organic display device, comprising: an organic solar module for obtaining solar energy and converting the obtained solar energy into electric power, and an ultraviolet organic light emitting module driven to emit ultraviolet light by the electric power obtained from the organic solar module. The present invention can fully use solar energy and carry out ultraviolet display by combining the ultraviolet organic light emitting module with the organic solar module.

Description:
FIELD OF THE INVENTION 
       [0001]    The present invention relates to an organic display device. 
       BACKGROUND OF THE INVENTION 
       [0002]    Organic Light Emitting Diode (OLED), also known as Organic Electroluminescence Display (OELD), is a new generation of lighting display device which has organic luminescent materials sandwiched between a transparent anode and a metal reflective cathode for emitting light by applying a voltage to the organic luminescent materials. The OLED does not require a back light device, so it can be made thinner and consume power less than other types of flat panel display. Meanwhile, the OLED has wide working temperature ranges and low manufacturing cost, and therefore the application of OLED is becoming wider. Furthermore, organic luminescent materials of different colors can be used to display various light of different colors. 
         [0003]    With the continuous development of organic light-emitting diode, there is ultraviolet-organic light emitting diode (UV-OLED) for being used as an ultraviolet light source, Advantages of the UV-OLED are eco-friendly, low-cost, easily large area production, easy integration with flexible substrate, etc. 
         [0004]    With the growing popularity of solar energy, it is increasing for the efficiency of solar energy utilization, for example, advantages of the organic solar equipment are material flexibility, simple manufacture, wide range of material sources and low-cost to be thus used widely in the power generation, lighting and other fields. 
         [0005]    Therefore, it is one of the direction of the organic light emitting diode research field to think how to combine the ultraviolet organic light emitting diode with the solar energy to be able to fully utilize the solar energy and be able to achieve ultraviolet display. 
       SUMMARY OF THE INVENTION 
       [0006]    A primary object of the present invention is to provide a structure of an organic light emitting diode device, which combines an ultraviolet organic light emitting diode with the solar energy to be able to fully utilize the solar energy and be able to achieve ultraviolet display. 
         [0007]    To achieve the above object, the present invention provides an organic display device which comprises:
       at least one display area;   at least one non-display area alternately arranged with the display area;   at least one organic solar module formed in the non-display area to obtain   solar energy and convert the obtained solar energy into electric power;   an energy storage module connected with the organic solar module to   store the electric power obtained by the organic solar module; and   at least one ultraviolet organic light emitting module formed in the display area and connected with the energy storage module to be driven to emit ultraviolet light by the electric power obtained from the energy storage module.       
 
         [0015]    In one embodiment of the present invention, the organic display device comprises a first substrate, the ultraviolet organic light emitting module comprises a first anode and a first cathode, and the organic solar module comprises a second anode and a second cathode. 
         [0016]    In one embodiment of the present invention, the first anode and the second anode are formed from an identical anode layer on the first substrate, and the first cathode and the second cathode are formed from an identical cathode layer on the first substrate. 
         [0017]    In one embodiment of the present invention, the first anode is separated from the second anode, and the first cathode is separated from the second cathode. 
         [0018]    In one embodiment of the present invention, the first anode is connected with the second anode, and the first cathode is separated from the second cathode. 
         [0019]    In one embodiment of the present invention, an anode connection line and a cathode connection line are formed on the first substrate, the first cathode and the second cathode are connected with an external lead through the cathode connection line, and the first anode and the second anode are connected with another external lead through the anode connection line. 
         [0020]    In one embodiment of the present invention, the organic display device further comprises a second substrate disposed opposite the first substrate, the organic solar module is disposed on the first substrate, and the ultraviolet organic light emitting module is disposed on the second substrate. 
         [0021]    In one embodiment of the present invention, the energy storage module further comprises an external power supply terminal connected with an external power supply to obtain and store the electric power from the external power supply. 
         [0022]    A secondary object of the present invention is to provide a structure of an organic light emitting diode device, which combines ultraviolet organic light emitting diode with the solar energy to be able to fully utilize the solar energy and be able to achieve ultraviolet display. 
         [0023]    To achieve the above object, the present invention provides an organic display device which comprises:
       at least one organic solar module obtaining solar energy and converting the solar energy into electric power; and   at least one ultraviolet organic light emitting module driven to emit ultraviolet light by the electric power obtained from the energy storage module.       
 
         [0026]    In one embodiment of the present invention, the organic display device comprises at least one display area and at least one non-display area, the organic solar module is formed in the non-display area, the ultraviolet organic light emitting module is formed in the display area, and the display area is alternately arranged with the non-display area. 
         [0027]    In one embodiment of the present invention, the organic display device comprises a first substrate, the ultraviolet organic light emitting module comprises a first anode and a first cathode, and the organic solar module comprises a second anode and a second cathode. 
         [0028]    In one embodiment of the present invention, the first anode and the second anode are formed from an identical anode layer on the first substrate, and the first cathode and the second cathode are formed from an identical cathode layer on the first substrate. 
         [0029]    In one embodiment of the present invention, the first anode is separated from the second anode, and the first cathode is separated from the second cathode. 
         [0030]    In one embodiment of the present invention, the first anode is connected with the second anode, and the first cathode is separated from the second cathode. 
         [0031]    In one embodiment of the present invention, an anode connection line and a cathode connection line are formed on the first substrate, the first cathode and the second cathode are connected with an external lead through the cathode connection line, and the first anode and the second anode are connected with another external lead through the anode connection line. 
         [0032]    In one embodiment of the present invention, the organic display device further comprises a second substrate disposed opposite the first substrate, the organic solar module is disposed on the first substrate, and the ultraviolet organic light emitting module is disposed on the second substrate. 
         [0033]    In one embodiment of the present invention, the organic display device further comprises:
       an energy storage module connected with the organic solar module and the ultraviolet organic light emitting module to store the electric power obtained by the organic solar module, wherein the ultraviolet organic light emitting module obtains the electric power from the energy storage module.       
 
         [0035]    In one embodiment of the present invention, the energy storage module further comprises an external power supply terminal connected with an external power supply to obtain and store the electric power from the external power supply. 
         [0036]    Compared to the prior art, the present invention is to form a solar energy device and an ultraviolet light-emitting device in one organic display device, wherein the electric power generated by the solar energy device is directly used as the power for the ultraviolet light-emitting device to emit ultraviolet light, so that it can be able to fully utilize the solar energy and be able to achieve ultraviolet display. 
         [0037]    The above-mentioned content of the present invention can be best understood by referring to the following detailed description of the preferred embodiments and the accompanying drawings. 
     
    
     
       DESCRIPTION OF THE DRAWINGS 
         [0038]      FIG. 1  is a structural schematic view of an organic display device according to a first embodiment of the present invention; 
           [0039]      FIG. 2  is a structural top view of the organic display device according to the first embodiment of the present invention; 
           [0040]      FIG. 3  is a cross-sectional view of the organic display device according to the first embodiment of the present invention; 
           [0041]      FIG. 4  is a structural cross-sectional view of an ultraviolet organic light emitting module according to the first embodiment of the present invention; 
           [0042]      FIG. 5  is a cross-sectional view of an organic display device according to a second embodiment of the present invention; 
           [0043]      FIG. 6  is a cross-sectional view of an organic display device according to a third embodiment of the present invention; 
           [0044]      FIG. 7  is a cross-sectional view of an organic display device according to a fourth embodiment of the present invention; and 
           [0045]      FIG. 8  is a cross-sectional view of an organic display device according to a fifth embodiment of the present invention. 
       
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
       [0046]    The structure and the technical means adopted by the present invention to achieve the above and other objects can be best understood by referring to the following detailed description of the preferred embodiments and the accompanying drawings. Furthermore, directional terms described by the present invention, such as upper, lower, front, back, left, right, inner, outer, side, longitudinal/vertical, transverse/horizontal, and etc., are only directions by referring to the accompanying drawings, and thus the used directional terms are used to describe and understand the present invention, but the present invention is not limited thereto. In figures, similar structural units are labeled by the same numerals. 
         [0047]    Referring to  FIG. 1 ,  FIG. 1  is a structural schematic view of an organic display device according to a first embodiment of the present invention. The organic display device  10  comprises an organic solar module  11 , a voltage conversion module  12 , an energy storage module  13  and an ultraviolet organic light emitting module  14 , wherein the energy storage module  13  further comprises an external power supply terminal  131 . 
         [0048]    The organic solar module  11  is connected to the voltage conversion module  12 , the voltage conversion module  12  is connected to the energy storage module  13 , the energy storage module  13  is connected to the ultraviolet organic light emitting module  14 , wherein the organic solar module  11  is used to obtain the solar energy, for example, absorbing sunlight as solar energy, and converting the obtained solar energy into electric power. the voltage conversion module  12  converts a voltage of the electric power generated by the solar module  11  into a suitable voltage, the suitable voltage is matched with a voltage carried by the energy storage module  13 , and the energy storage module  13  stores the electrical energy converted by the voltage conversion module  12 . The ultraviolet organic light emitting module  14  is driven to emit ultraviolet light by the electric power obtained from the energy storage module  13 . 
         [0049]    In one embodiment, when the sunlight obtained from the organic solar module  11  is insufficient or the electric power stored from the energy storage module  13  is low, the energy storage module  13  can obtain and store the electric power from the external power supplied by the external power supply terminal  131  (not shown). 
         [0050]    Referring to  FIG. 2 ,  FIG. 2  is a structural top view of the organic display device according to the first embodiment of the present invention. The organic display device  10  comprises at least one display area  21  and at least one non-display area  22 , wherein the organic solar module  11  is formed in the non-display are  22 , and the ultraviolet organic light emitting module  14  is formed in the display area  21 . At least one non-display area is alternately arranged with at least one display area along a parallel line A or a longitudinal line B. In the present invention, the display area  21  and the non-display area  22  are designed to arrange in the same column (or row), so that it can ensure that the organic solar module  11  of the organic display device  10  can fully absorb the sunlight as solar energy and the ultraviolet organic light emitting module  14  of the display area  21  can display ultraviolet light. 
         [0051]    Referring to  FIG. 3 ,  FIG. 3  is a cross-sectional view of an organic display device according to the first embodiment of the present invention. The organic display device  10  comprises a first substrate  31  and a second substrate  32  disposed opposite to the first substrate. The organic solar module  11  and the ultraviolet organic light emitting module  14  are disposed between the first substrate  31  and the second substrate  32 . The ultraviolet organic light emitting module  14  comprises a first anode  141 , an organic light-emitting layer  142 , a first cathode  143 , and a first insulating layer  144  formed between the first anode  141  and the first cathode  143 , wherein the organic solar module  11  comprises a second anode  111 , a photoelectric conversion layer  112 , a second cathode  113 , and a second insulating layer  114  formed between the second anode  111  and the second cathode  113 , 
         [0052]    In the embodiment as shown in  FIG. 3 , the organic solar module  11  and the ultraviolet organic light emitting module  14  are both formed on the first substrate  31 , the first anode  141  and the second anode  111  are formed from an identical anode layer on the first substrate  31 , and the first cathode  143  and the second cathode  113  are formed from an identical cathode layer on the first substrate  31 . The first insulating layer  144  is filled in a position other than the organic light-emitting layer  142 , and the second insulating layer  114  is filled in a position other than the photoelectric conversion layer  112 . The first anode  141  is separated from the second anode  111 , and the first cathode  143  is separated from the second cathode  113 . 
         [0053]    Furthermore, the photoelectric conversion layer  112  of the organic solar module  11  uses polymer hetero-junction P-N structure, which is a mixture of P-type material and N-type material, such as organic mixture including P3HT: PCBM mixture, MEH-PPV: PCBM mixture, or MDMO-PPV: PCBM mixture. When forming the photoelectric conversion layer  112 , the organic mixture is firstly dissolved in an organic solvent, such as chlorobenzene, and then sprayed onto a specific position of the first substrate  31  by a printing technology. P3HT is poly(3-hexythiophene), MEH-PPV is poly(2-methoxy-, 5-(2′-ethyl-hexyloxy)-p-phenylenevinylene), MDMO-PPV is poly(3-hexyl thiophene) (i.e. P3HT) and poly(p-phenylene vinylene) derivatives, and PCBM is fullerene derivative. 
         [0054]    Referring to  FIG. 4 ,  FIG. 4  is a detail structural cross-sectional view of an ultraviolet organic light emitting module  14  according to the present invention. The organic light-emitting layer  142  comprises a hole transporting layer  151 , an ultraviolet organic light emitting layer  152  and an electron transporting layer  153 . 
         [0055]    In a bias voltage condition, the electrons from the first cathode  143  and the holes from the first anode  141  are recombined in the ultraviolet organic light emitting layer  152 , so that the ultraviolet organic light emitting layer  152  emits ultraviolet light through the hole transporting layer  151 , the first anode  141  and the first substrate  31  in turn. The ultraviolet organic light emitting module  14  is a planar light, so the organic display device can be a large area display device of ultraviolet light. 
         [0056]    Referring to  FIG. 5 ,  FIG. 5  is a cross-sectional view of an organic display device according to a second embodiment of the present invention. As shown, the difference between the second embodiment and the first embodiment of  FIG. 3  is that, in the second embodiment of  FIG. 5 , the first anode  141  is connected with the second anode  111 , and the first cathode  143  is separated from the second cathode  113 . The detailed description of other structures of the organic display apparatus in  FIG. 5  can be referred to the description of  FIG. 3 , and thus is omitted herein. 
         [0057]    Referring to  FIG. 6 ,  FIG. 6  is a cross-sectional view of an organic display device according to a third embodiment of the present invention. In the third embodiment, the first anode  141  is separated from the second anode  111 , and the first cathode  143  is separated from the second cathode  113 . An anode connection line is formed on the first substrate  31 , such as a first anode connection line  341  and a second anode connection line  342 , while a cathode connection line are formed on the first substrate  31 , such as a first cathode connection line  331  and a second cathode connection line  332 , wherein the first cathode  143  is connected the first cathode connection line  331  and connected with an external lead through the first cathode connection line  331 , the first anode  141  is connected the first anode connection line  341  and connected with the external lead through the first anode connection line  341 , the second cathode  113  is connected the second cathode connection line  332  and connected with the external lead through the second cathode connection line  332 , the second anode  111  is connected the second anode connection line  342  and connected with the external lead through the second anode connection line  342 . The present invention can reduce the impedance of each electrode by providing the connection lines. 
         [0058]    Referring to  FIG. 7 ,  FIG. 7  is a cross-sectional view of an organic display device according to a fourth embodiment of the present invention. As shown, the same portion as the third embodiment of  FIG. 6  is that a cathode connection line is formed, such as a first cathode connection line  331  and a second cathode connection line  332 , wherein the first cathode  143  is connected with the first cathode connection line  331  and connected with the external lead through the first cathode connection line  331 , the second anode  111  is connected with the second cathode connection line  332  and connected with the external lead through the second cathode connection line  332 . In the fourth embodiment, the difference thereof is that the first anode  141  is connected with the second anode  111 , the first cathode  143  is separated from the second cathode  113 , an anode connection line  34  is provided, each of the first anode  141  and the second anode  111  is connected with the anode connection line  34  and connected with the external lead through the anode connection line  34 . 
         [0059]    Referring to  FIG. 8 ,  FIG. 8  is a cross-sectional view of an organic display device according to a fifth embodiment of the present invention. In the fifth embodiment, the ultraviolet organic light emitting module  14  is disposed on the first substrate  31 , the organic solar module  11  is disposed on the second substrate  32 , the ultraviolet organic light emitting module  14  is disposed opposite to the organic solar module  11  to save space. In the fifth embodiment, the first anode  141  and the second anode  111  are not formed from the same anode layer, but manufactured separately, while the first cathode  143  and the second cathode  113  are not formed from the same cathode layer, but manufactured separately. The detailed structures of the fifth embodiment in  FIG. 8  can be referred to the detailed description of  FIG. 3 , and thus is omitted herein. 
         [0060]    The present invention is to form an organic solar device and an ultraviolet organic light emitting device on the same organic display device, wherein the electric power generated by the solar energy device is directly used as the power for the ultraviolet light-emitting device to emit ultraviolet light, so that it can be able to fully utilize the solar energy and be able to achieve ultraviolet display. 
         [0061]    The present invention has been described with a preferred embodiment thereof and it is understood that many changes and modifications to the described embodiment can be carried out without departing from the scope and the spirit of the invention that is intended to be limited only by the appended claims.