Transparent organic light-emitting diode and electronic equipment

Abstract

The invention discloses a transparent organic light-emitting diode and an electronic device. The transparent organic light-emitting diode comprises a non-light-emitting region, a transparent organic light-emitting layer and a transparent organic light-emitting layer, the light-emitting area and the non-light-emitting area are arranged on the substrate; the light-emitting region comprises a first electrode layer, an organic layer and a second electrode layer; the first electrode layer is arranged on the substrate; the organic layer is arranged on one side, opposite to the substrate, of the first electrode layer; the second electrode layer is arranged on one side, opposite to the first electrode layer, of the organic layer; one end of the first electrode layer of the light-emitting area extends into the non-light-emitting area; the first electrode layers of the light-emitting areas located on the two sides of the non-light-emitting areas are provided with gap areas between the non-light-emitting areas. The non-luminous area comprises an insulating layer; the insulating layer is attached to one side, opposite to the substrate, of the first electrode layer; one end, extending into the non-luminous area, of the first electrode layer is covered by the insulating layer; the distance between the contact point of the marginal line of the insulating layer and the first electrode layer on one side of the non-light-emitting area and the end, extending into the non-light-emitting area, of the first electrode layer on the other side of the non-light-emitting area is not smaller than 15 micrometers.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic equipment, and in particular to a transparent organic light emitting diode and electronic equipment. Background Art

[0002] In the technical fields of visible windows, display helmets, rifle scopes, etc., in order to pursue higher visual enjoyment, the requirements for light-emitting diodes are getting higher and higher. Usually, a highly transparent electrode layer is used to replace an opaque electrode layer, and a highly transparent insulating layer is used to replace an opaque insulating layer, so as to achieve transparent display of organic light-emitting diodes.

[0003] However, the transparent light-emitting diodes mentioned above have the problem of stray bright lines, for example, they are lit in adjacent or non-adjacent areas that should not be lit, thus affecting the overall display effect; and with the entry of water vapor and oxygen at the edge of the light-emitting area, problems such as edge failure of the light-emitting layer may occur.

[0004] How to solve the above technical problems has become a technical problem that needs to be solved urgently in the industry. Summary of the invention

[0005] In order to at least solve the above technical problems, an object of the present invention is to provide a transparent organic light emitting diode, which avoids the lateral crosstalk phenomenon between adjacent light emitting areas.

[0006] In order to achieve the above-mentioned purpose, the transparent organic light-emitting diode provided in the present application comprises:

[0007] Luminous and non-luminous areas;

[0008] The non-luminous area is arranged between two adjacent luminous areas;

[0009] The light-emitting area and the non-light-emitting area are both arranged on the substrate;

[0010] The light-emitting area includes: a first electrode layer, an organic layer and a second electrode layer;

[0011] The first electrode layer is disposed on the substrate;

[0012] The organic layer is arranged on the side of the first electrode layer facing away from the substrate;

[0013] The second electrode layer is arranged on a side of the organic layer facing away from the first electrode layer;

[0014] One end of the first electrode layer in the light-emitting area extends into the non-light-emitting area;

[0015] The first electrode layer of the light-emitting area located on both sides of the non-light-emitting area is provided with a gap area between the non-light-emitting areas;

[0016] The non-luminous region includes an insulating layer;

[0017] The insulating layer is attached to the side of the first electrode layer facing away from the substrate;

[0018] One end of the first electrode layer extending into the non-luminous region is covered by the insulating layer;

[0019] The contact point between the edge line of the insulating layer and the first electrode layer on one side of the non-luminous area is not less than 15 microns away from the end of the first electrode layer on the other side of the non-luminous area extending into the non-luminous area.

[0020] Furthermore, a filling block is provided in the gap area.

[0021] Furthermore, the filling block is made of the same material as the first electrode layer.

[0022] Furthermore, in the gap region, a filling block is provided at each of the two facing ends of the first electrode layers.

[0023] Furthermore, a gap is provided between the two filling blocks.

[0024] Furthermore, the insulating layer is made of a transparent organic insulating material or an inorganic insulating material.

[0025] Furthermore, the insulating layer is composed of one or more layers of insulating material.

[0026] Furthermore, when the insulating layer is composed of multiple layers of insulating materials, the distance between the insulating layer and the substrate increases gradually from near to far, and the etching rate of the insulating layer increases gradually.

[0027] Furthermore, the organic layers on both sides of the non-luminescent region are connected to and cover the insulating layer.

[0028] To achieve the above-mentioned purpose, the electronic device provided by the present application includes: the above-mentioned transparent organic light emitting diode.

[0029] The transparent organic light-emitting diode of the embodiment of the present application includes: a light-emitting area and a non-light-emitting area; the non-light-emitting area is arranged between two adjacent light-emitting areas; the light-emitting area and the non-light-emitting area are both arranged on a substrate; the light-emitting area includes: a first electrode layer, an organic layer and a second electrode layer; the first electrode layer is arranged on the substrate; the organic layer is arranged on the side of the first electrode layer facing away from the substrate; the second electrode layer is arranged on the side of the organic layer facing away from the first electrode layer; one end of the first electrode layer in the light-emitting area extends into the non-light-emitting area; the first electrode layers of the light-emitting areas located on both sides of the non-light-emitting area are provided with a gap area between the non-light-emitting areas; the non-light-emitting area includes an insulating layer; the insulating layer is attached to the side of the first electrode layer facing away from the substrate; one end of the first electrode layer extending into the non-light-emitting area is covered by the insulating layer; the contact point between the edge line of the insulating layer and the first electrode layer on one side of the non-light-emitting area is not less than 15 microns away from the end of the first electrode layer on the other side of the non-light-emitting area extending into the non-light-emitting area. By setting a gap area in the non-luminous area and controlling the distance from the first electrode layer extending into the non-luminous area to the intersection point of the extension direction with the insulating layer edge line to be no less than 15 microns, the problem of stray bright lines caused by lateral leakage of the first electrode layer is avoided, that is, the occurrence of lateral crosstalk between adjacent luminous areas is avoided; the setting of the filling block further avoids the occurrence of stray bright lines caused by lateral leakage; the setting of the filling block and the first electrode layer with the same material ensures that the overall appearance of the product remains consistent; when the insulating layer is composed of multiple layers of material, the etching rate of the insulating layer is controlled to be greater the further away from the substrate, which can solve the problem of edge failure of the luminous area caused by the invasion of water vapor and oxygen at the edge of the luminous area. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings are used to provide a further understanding of the present application and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the present application and do not constitute a limitation of the present application. In the accompanying drawings:

[0031] Figure 1 It is a schematic diagram of the structure of a transparent organic light emitting diode according to an embodiment of the present application.

[0032] Description of reference numerals:

[0033] 101 - substrate; 102 - first electrode layer; 103 - gap region; 104 - insulating layer; 105 - organic layer; 106 - second electrode layer. DETAILED DESCRIPTION

[0034] The embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be construed as being limited to the embodiments described herein. Instead, these embodiments are provided to provide a more thorough and complete understanding of the present application. It should be understood that the drawings and embodiments of the present application are only for exemplary purposes and are not intended to limit the scope of protection of the present application.

[0035] It should be understood that the various steps described in the method implementation of the present application can be performed in different orders and / or performed in parallel. In addition, the method implementation may include additional steps and / or omit the steps shown. The scope of the present application is not limited in this respect.

[0036] The term "including" and its variations used herein are open inclusions, i.e., "including but not limited to". The term "based on" means "based at least in part on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". The relevant definitions of other terms will be given in the following description.

[0037] It should be noted that the modifications of "one" and "plurality" mentioned in this application are illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise clearly indicated in the context, it should be understood as "one or more". "Plurality" should be understood as two or more.

[0038] The transparent organic light emitting diode of the embodiment of the present application comprises:

[0039] Luminous and non-luminous areas;

[0040] The non-luminous area is arranged between two adjacent luminous areas;

[0041] The light-emitting area and the non-light-emitting area are both arranged on the substrate;

[0042] The light-emitting area includes: a first electrode layer, an organic layer and a second electrode layer;

[0043] The first electrode layer is disposed on the substrate;

[0044] The organic layer is arranged on the side of the first electrode layer facing away from the substrate;

[0045] The second electrode layer is arranged on a side of the organic layer facing away from the first electrode layer;

[0046] One end of the first electrode layer in the light-emitting area extends into the non-light-emitting area;

[0047] The first electrode layer of the light-emitting area located on both sides of the non-light-emitting area is provided with a gap area between the non-light-emitting areas;

[0048] The non-luminous region includes an insulating layer;

[0049] The insulating layer is attached to the side of the first electrode layer facing away from the substrate;

[0050] One end of the first electrode layer extending into the non-luminous region is covered by the insulating layer;

[0051] The contact point between the edge line of the insulating layer and the first electrode layer on one side of the non-luminous area is not less than 15 microns away from the end of the first electrode layer on the other side of the non-luminous area extending into the non-luminous area.

[0052] Example 1

[0053] Figure 1 The transparent organic light emitting diode structure of the embodiment of the present application is shown below. Figure 1 , the transparent organic light emitting diode structure of the embodiment of the present application is described in detail.

[0054] In some exemplary embodiments, the transparent organic light emitting diode of the embodiments of the present application includes: a light emitting area and a non-light emitting area.

[0055] In some exemplary embodiments, the non-luminescent region is disposed between two adjacent luminescent regions, such as Figure 1 As shown, a non-luminous area is set between the two luminous areas.

[0056] In some exemplary embodiments, both the light-emitting area and the non-light-emitting area are disposed on the substrate 101 .

[0057] In some exemplary embodiments, the light emitting region includes: a first electrode layer 102 , an organic layer 105 , and a second electrode layer 106 .

[0058] In some exemplary embodiments, the first electrode layer 102 includes a first electrode.

[0059] In some exemplary embodiments, the second electrode layer 106 includes a second electrode.

[0060] In some exemplary embodiments, the first electrode layer 102 is disposed on the substrate 101 , and the first electrode layer 102 is, for example, a transparent anode.

[0061] In some exemplary embodiments, the transparent anode is formed by PVD or CVD.

[0062] In some exemplary embodiments, PVD (physical vapor deposition) is a physical vapor deposition method.

[0063] In some exemplary embodiments, CVD (chemical vapor deposition) is used.

[0064] In some exemplary embodiments, the organic layer 105 is disposed on a side of the first electrode layer 102 facing away from the substrate 101 .

[0065] In some exemplary embodiments, the organic layer 105 is formed by thermal evaporation, coating, or inkjet printing.

[0066] In some exemplary embodiments, the second electrode layer 106 is disposed on a side of the organic layer 105 facing away from the first electrode layer 102 , and the second electrode layer 106 is, for example, a transparent cathode.

[0067] In some exemplary embodiments, the transparent cathode is formed by thermal evaporation or physical sputtering.

[0068] In some exemplary embodiments, one end of the first electrode layer 102 in the light emitting region extends into the non-light emitting region.

[0069] In some exemplary embodiments, the first electrode layer 102 of the light-emitting region located on both sides of the non-light-emitting region is provided with a gap region 103 between the non-light-emitting regions; Figure 1 As shown, the provision of the gap region 103 indicates that the first electrode layer 102 of the light-emitting region 1 is not in contact with the first electrode layer 102 of the light-emitting region 2 in the non-light-emitting region.

[0070] In some exemplary embodiments, the non-light emitting region includes an insulating layer 104 .

[0071] In some exemplary embodiments, the insulating layer 104 is attached to a side of the first electrode layer 102 facing away from the substrate 101 .

[0072] In some exemplary embodiments, one end of the first electrode layer 102 extending into the non-light emitting region is covered by the insulating layer 104 .

[0073] In some exemplary embodiments, the contact point between the edge line of the insulating layer 104 and the first electrode layer 102 on one side of the non-luminous region is not less than 15 microns from the end of the first electrode layer 102 on the other side of the non-luminous region extending into the non-luminous region; that is, Figure 1 The spacing a shown is not less than 15 micrometers. The spacing of 15 micrometers avoids the occurrence of stray bright line problems caused by lateral leakage of the first electrode layer 102 .

[0074] In some exemplary embodiments, a filling block is disposed in the gap region 103 .

[0075] In some exemplary embodiments, the filling block is made of the same material as the first electrode layer 102 . The filling block is made of the same material as the first electrode layer 102 to maintain consistency in appearance without looking awkward. Of course, the filling block may also be made of an insulating material different from that of the first electrode layer 102 .

[0076] In some exemplary embodiments, in the gap region 103 , a filling block is provided at each end of two facing first electrode layers 102 .

[0077] In some exemplary embodiments, a gap is provided between the two filling blocks.

[0078] In some exemplary embodiments, Figure 1 As shown, there is a filling block at the end of the first electrode layer 102 extending from the light-emitting area 1 into the non-light-emitting area, and there is also a filling block at the end of the first electrode layer 102 extending from the light-emitting area 2 into the non-light-emitting area, and there is a gap between the filling blocks of the two.

[0079] In some exemplary embodiments, the provision of the filling blocks further limits the occurrence of stray bright line problems caused by lateral leakage of the first electrode layer 102 .

[0080] In some exemplary embodiments, the insulating layer 104 is made of a transparent organic insulating material, or an inorganic insulating material.

[0081] In some exemplary embodiments, the insulating layer 104 is composed of one or more layers of insulating material.

[0082] In some exemplary embodiments, when the insulating layer 104 is composed of multiple layers of insulating materials, the etching rate of the insulating layer 104 is kept as consistent as possible.

[0083] In some exemplary embodiments, when the insulating layer 104 is composed of multiple layers of insulating materials, the distance between the insulating layer 104 and the substrate 101 is in order from near to far, and the etching rate of the insulating layer 104 gradually increases; that is, the farther the insulating layer 104 is from the substrate 101, the greater its etching rate.

[0084] In some exemplary embodiments, the material of the insulating layer 104 is, for example, a transparent organic insulating material or an inorganic insulating material.

[0085] In some exemplary embodiments, the inorganic insulating material is, for example, silicon oxide.

[0086] In some exemplary embodiments, when the insulating layer 104 is composed of multiple layers of insulating materials, such as a combination of silicon oxide and silicon nitride; for example, silicon oxide is located above silicon nitride, the etching rate of the upper silicon oxide is greater than the etching rate of the lower silicon nitride.

[0087] In some exemplary embodiments, when the insulating material is composed of multiple layers of material, the problem of edge failure of the light-emitting area caused by the invasion of water vapor and oxygen into the edge of the light-emitting area can be solved by controlling the difference in etching rates between the multiple layers.

[0088] In some exemplary embodiments, the organic layers 105 on both sides of the non-luminescent region are connected and cover the insulating layer 104; that is, the organic layers 105 in the luminescent region on both sides of the non-luminescent region are connected horizontally and cover the insulating layer 104 in the non-luminescent region. Figure 1 shown.

[0089] In some exemplary embodiments, the second electrode layers 106 on both sides of the non-luminescent region are connected to and cover the organic layer 105; that is, the second electrode layers 106 in the luminescent region on both sides of the non-luminescent region are horizontally two-dimensional and cover the organic layer 105 below. Figure 1 shown.

[0090] In some exemplary embodiments, Figure 1 As shown, the difference between the non-luminous area and the two luminous areas located on both sides of the non-luminous area is that a gap area 103 is provided between the first electrode layers 102 extending into the non-luminous area, that is, the first electrode layers 102 on both sides are not connected in the non-luminous area, and are covered by providing an insulating layer 104 on the gap area 103; the insulating layer 104 also covers the end of the first electrode layer 102 extending into the non-luminous area.

[0091] In some exemplary embodiments, the organic layer 105 includes a hole injection layer, a hole transport layer, a light emitting layer, an electron transport layer and an electron injection layer in sequence from small to upward, that is, from close to the first electrode layer 102 to the second electrode layer 106 .

[0092] In some exemplary embodiments, as needed, a substrate and a packaging cover are further included. The substrate and the packaging cover form a closed space, and a desiccant and a sealant for sealing are provided in the closed space; the desiccant is used to absorb water vapor entering the closed space.

[0093] In some exemplary embodiments, as required, the device further includes: a driving chip, and leads connecting the driving chip to the light-emitting area.

[0094] Example 2

[0095] Embodiment 2 is an electronic device, comprising the transparent organic light emitting diode of the above embodiment.

[0096] In some exemplary embodiments, although the embodiments disclosed in the present invention are as above, the contents are only embodiments adopted for facilitating the understanding of the present invention, and are not intended to limit the present invention. Any technician in the field to which the present invention belongs can make any modifications and changes in the form and details of the implementation without departing from the spirit and scope disclosed in the present invention, but the patent protection scope of the present invention shall still be subject to the scope defined in the attached claims.

Claims

1. A transparent organic light emitting diode, characterized in that: include: Luminous and non-luminous areas; The non-luminous area is arranged between two adjacent luminous areas; The light-emitting area and the non-light-emitting area are both arranged on a substrate; The light-emitting area includes: a first electrode layer, an organic layer and a second electrode layer; The first electrode layer is disposed on the substrate; The organic layer is disposed on a side of the first electrode layer facing away from the substrate; The second electrode layer is arranged on a side of the organic layer facing away from the first electrode layer; One end of the first electrode layer in the light-emitting area extends into the non-light-emitting area; The first electrode layer of the light-emitting area located at both sides of the non-light-emitting area is provided with a gap area between the non-light-emitting areas; The non-luminous area includes an insulating layer; The insulating layer is attached to a side of the first electrode layer facing away from the substrate; One end of the first electrode layer extending into the non-luminous area is covered by the insulating layer; The contact point between the edge line of the insulating layer and the first electrode layer on one side of the non-luminous area is not less than 15 micrometers away from the end of the first electrode layer on the other side of the non-luminous area extending into the non-luminous area.

2. The transparent organic light emitting diode according to claim 1, characterized in that: A filling block is arranged in the gap area.

3. The transparent organic light emitting diode according to claim 2, characterized in that: The filling block is made of the same material as the first electrode layer.

4. The transparent organic light emitting diode according to claim 3, characterized in that: In the gap region, two facing ends of the first electrode layers are each provided with a filling block.

5. The transparent organic light emitting diode according to claim 4, characterized in that: A gap is also provided between the two filling blocks.

6. The transparent organic light emitting diode according to claim 1, characterized in that: The insulating layer is made of a transparent organic insulating material or an inorganic insulating material.

7. The transparent organic light emitting diode according to claim 6, characterized in that: The insulating layer is composed of one or more layers of insulating material.

8. The transparent organic light emitting diode according to claim 7, characterized in that: When the insulating layer is composed of multiple layers of insulating material, the distance between the insulating layer and the substrate is in the order of near to far, and the etching rate of the insulating layer increases gradually.

9. The transparent organic light emitting diode according to claim 1, characterized in that: The organic layers on both sides of the non-light-emitting area are connected to and cover the insulating layer.

10. An electronic device, characterized in that: A transparent organic light emitting diode comprising any one of claims 1 to 9.

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