CN103702467A - OLED (Organic Light Emitting Diode) lighting source - Google Patents
OLED (Organic Light Emitting Diode) lighting source Download PDFInfo
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- CN103702467A CN103702467A CN201310677530.5A CN201310677530A CN103702467A CN 103702467 A CN103702467 A CN 103702467A CN 201310677530 A CN201310677530 A CN 201310677530A CN 103702467 A CN103702467 A CN 103702467A
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Abstract
The invention discloses an OLED (Organic Light Emitting Diode) lighting source, which is of a polygon structure, and comprises a base plate, and an electrode lead area and a lighting area located on the base plate. The lighting area comprises a first electrode, an organic function layer and a second electrode; one side of the lighting area is adjacent to the electrode lead area; auxiliary electrodes are respectively arranged on edges of other sides, are mutually connected, and are communicated with the electrode lead area. According to the OLED lighting source, only the auxiliary electrodes connected with the electrode lead area are arranged on the edges of the lighting area, and under the condition of equivalent uniformity of luminance, the effective lighting area can be increased, and the lighting efficiency is improved.
Description
Technical field
The present invention is about a kind of OLED(Organic Light Emitting Diode, Organic Light Emitting Diode) lighting source, refer to especially a kind of luminous evenly and there is the OLED lighting source of larger efficient lighting area.
Background technology
The luminescence unit of OLED lighting source generally comprises the first electrode, luminescent layer, the second electrode, and the first electrode is normally transparent, its sheet resistance is larger, when causing whole of OLED luminous, ionization electrode lead-in wire region (being electric current input) local pressure drop far away is more obvious, causes light source luminescent inhomogeneous.For addressing this problem, the scheme proposing is at present all on the first transparent electrode, to increase the assistant metal (sheet resistance is lower) being communicated with it to improve uniformity, assistant metal is traditionally arranged to be the grid that whole face is covered with and is interconnected in luminous zone, because auxiliary electrode is opaque, can affect light-emitting area.
Meanwhile, the larger OLED lighting source of area is divided into the connection of polylith units in series conventionally at present, and each luminescence unit area diminishes relatively, if the mode that auxiliary electrode takes grid to be covered with again, light-emitting area reduces more, affects luminous efficiency.
Summary of the invention
In view of this, main purpose of the present invention be to provide a kind of luminous evenly and there is the OLED lighting source of larger efficient lighting area.
For achieving the above object, the invention provides a kind of OLED lighting source, it is polygonized structure, it comprises substrate, is positioned at contact conductor region and light-emitting zone on substrate, this light-emitting zone comprises the first electrode, organic function layer and the second electrode, one side of this light-emitting zone is adjacent with this contact conductor region, and all the other each edges, limit are respectively equipped with an auxiliary electrode, and each auxiliary electrode interconnects and is connected with described contact conductor region.
Described auxiliary electrode is bonding jumper.
The material of described bonding jumper is chromium, gold, silver, copper, aluminium or molybdenum.
Described bonding jumper is comprised of the identical the first metal layer of two layers of material and the second metal level of being located at another material between two-layer the first metal layer.
Any point distance described contact conductor region described in each on bonding jumper is far away, and this width of putting corresponding bonding jumper is larger.
The present invention also provides a kind of OLED lighting source, it is comprised of a plurality of light source modules of cutting apart, each light source module is polygonized structure, the light source module that is positioned at OLED lighting source outer rim comprises substrate, is positioned at contact conductor region and light-emitting zone on substrate, this light-emitting zone comprises the first electrode, organic function layer and the second electrode, the light-emitting zone of light source module that is positioned at outer rim is adjacent with this contact conductor region on one side, an auxiliary electrode is all set on other each limits, and each auxiliary electrode interconnects and is connected with described contact conductor region.
Described auxiliary electrode is bonding jumper.
The material of described bonding jumper is chromium, gold, silver, copper, aluminium or molybdenum.
Described bonding jumper is comprised of the identical the first metal layer of two layers of material and the second metal level of being located at another material between two-layer the first metal layer.
Any point distance described contact conductor region described in each on bonding jumper is far away, and this width of putting corresponding bonding jumper is larger.
The present invention is only furnished with the auxiliary electrode with contact conductor joint area at light-emitting zone edge, in the situation that brightness uniformity is suitable, can increase efficient lighting area, improves luminous efficiency.
Accompanying drawing explanation
Fig. 1 is one of embodiment mono-schematic diagram of the auxiliary electrode of OLED lighting source of the present invention;
Fig. 2 be OLED lighting source of the present invention auxiliary electrode embodiment mono-schematic diagram two;
Fig. 3 be OLED lighting source of the present invention auxiliary electrode embodiment mono-schematic diagram three;
Fig. 4 is embodiment bis-schematic diagrames of the auxiliary electrode of OLED lighting source of the present invention;
Fig. 5 is one of embodiment tri-schematic diagrames of the auxiliary electrode of OLED lighting source of the present invention;
Fig. 6 be OLED lighting source of the present invention auxiliary electrode embodiment tri-schematic diagrames two.
Embodiment
For ease of structure of the present invention and the effect that reaches are had to further understanding, the existing preferred embodiment that develops simultaneously is by reference to the accompanying drawings described in detail as follows.
As shown in Figure 1, OLED lighting source of the present invention is polygon light source, this OLED lighting source comprises substrate, be positioned at contact conductor region and light-emitting zone on substrate, this light-emitting zone comprises the first electrode, organic function layer and the second electrode, the first electrode is generally transparency electrode, take quadrangle light source as example, the light-emitting zone of this OLED lighting source is adjacent with this contact conductor region on one side, other three edges arrange respectively an auxiliary electrode 1, and each auxiliary electrode 1 interconnects and is connected with this first contact conductor region.Setting by contact conductor of the present invention region and other edge auxiliary electrodes 1 of light-emitting zone, sheet resistance that can balanced the first electrode, make OLED lighting source be able to uniformly light-emitting, and be located at the edge of light-emitting zone because of auxiliary electrode 1, do not take too much light-emitting zone area.
As shown in Figure 2, the width of each auxiliary electrode 1 of the present invention can gradual change, on auxiliary electrode 1, any point is far away apart from contact conductor region, it is larger that this puts corresponding auxiliary electrode 1 width, distance the first contact conductor region is far away, auxiliary electrode 1 is wider, and its resistance is less, with this, carrys out the sheet resistance of balance the first electrode.The width of the auxiliary electrode that any point on each auxiliary electrode is corresponding and this point become a ratio apart from the distance in contact conductor region, and this ratio of each auxiliary electrode can be identical, also can be different, and the width of two auxiliary electrode junctions can be identical, also can be different.OLED lighting source of the present invention is not limited to quadrangle, also can be pentagon (as shown in Figure 3) or other polygons.
Auxiliary electrode 1 of the present invention is except for the larger whole OLED lighting source of area, can also be for the OLED lighting source being formed by a plurality of light source modules of cutting apart, each light source module is polygonized structure, if the light source module in Fig. 4 is rectangle, the light source module that is positioned at OLED lighting source outer rim comprises substrate, be positioned at contact conductor region and light-emitting zone on substrate, this light-emitting zone comprises the first electrode, organic function layer and the second electrode, the first electrode is generally transparency electrode, the light-emitting zone of light source module that is positioned at outer rim is adjacent with this contact conductor region on one side, an auxiliary electrode 1 that resistance is lower is all set on other each limits, each auxiliary electrode 1 interconnects and is connected with this first contact conductor region.Setting by contact conductor of the present invention region and other edge auxiliary electrodes 1 of light-emitting zone, sheet resistance that can balanced the first electrode, make each light source module of OLED lighting source be able to uniformly light-emitting, because of auxiliary electrode 1, be located at edge, do not take too much light-emitting zone area simultaneously.
OLED lighting source of the present invention, no matter be whole large-area OLED lighting source, still be divided into the OLED lighting source of light source module form, auxiliary electrode 1 is except being located at the edge in non-contact conductor region, also can be located in the light-emitting zone of the first electrode, auxiliary electrode 1 connects respectively the edge in each non-contact conductor region by assistant metal grid silk 2, as shown in Figure 5, each assistant metal grid silk 2 is electrically connected in non-contact conductor edges of regions and the first contact conductor region.Due to the auxiliary electrode 1 and the similar netted design of assistant metal grid silk 2 that adopt in light-emitting zone, resistance that can balance the first electrode surface, therefore can guarantee the luminosity uniformity of OLED lighting source, because auxiliary electrode 1 and assistant metal grid silk 2 take less area, can make the efficient lighting area of OLED larger simultaneously.In the present embodiment, auxiliary electrode 1 shape can be rectangle strip (as shown in Figure 5), also can be arcuate structure (as shown in Figure 6).
Auxiliary electrode in the present invention can be bonding jumper, the material of this bonding jumper can be chromium, gold, silver, copper, aluminium or molybdenum, also can be for being formed by the identical the first metal layer of two layers of material and the second metal level of being located at another material between two-layer the first metal layer, as by two-layer molybdenum layer and be located at the layer structure that the aluminium lamination between two-layer molybdenum layer forms.
The assistant metal bar that the present invention is electrically connected to contact conductor region in the light-emitting zone edge placement of the first electrode, can guarantee, in the situation that brightness uniformity is suitable, can increase efficient lighting area, does not affect the luminous of light source.
The above, be only preferred embodiment of the present invention, is not intended to limit protection scope of the present invention.
Claims (10)
1. an OLED lighting source, it is polygonized structure, it comprises substrate, is positioned at contact conductor region and light-emitting zone on substrate, it is characterized in that, this light-emitting zone comprises the first electrode, organic function layer and the second electrode, one side of this light-emitting zone is adjacent with this contact conductor region, and all the other each edges, limit are respectively equipped with an auxiliary electrode, and each auxiliary electrode interconnects and is connected with described contact conductor region.
2. OLED lighting source as claimed in claim 1, is characterized in that, described auxiliary electrode is bonding jumper.
3. OLED lighting source as claimed in claim 2, is characterized in that, the material of described bonding jumper is chromium, gold, silver, copper, aluminium or molybdenum.
4. OLED lighting source as claimed in claim 2, is characterized in that, described bonding jumper is comprised of the identical the first metal layer of two layers of material and the second metal level of being located at another material between two-layer the first metal layer.
5. the OLED lighting source as described in claim 2-4, is characterized in that, any point distance described contact conductor region described in each on bonding jumper is far away, and this width of putting corresponding bonding jumper is larger.
6. an OLED lighting source, it is comprised of a plurality of light source modules of cutting apart, each light source module is polygonized structure, the light source module that is positioned at OLED lighting source outer rim comprises substrate, is positioned at contact conductor region and light-emitting zone on substrate, it is characterized in that, this light-emitting zone comprises the first electrode, organic function layer and the second electrode, the light-emitting zone of light source module that is positioned at outer rim is adjacent with this contact conductor region on one side, an auxiliary electrode is all set on other each limits, and each auxiliary electrode interconnects and is connected with described contact conductor region.
7. OLED lighting source as claimed in claim 6, is characterized in that, described auxiliary electrode is bonding jumper.
8. OLED lighting source as claimed in claim 7, is characterized in that, the material of described bonding jumper is chromium, gold, silver, copper, aluminium or molybdenum.
9. OLED lighting source as claimed in claim 7, is characterized in that, described bonding jumper is comprised of the identical the first metal layer of two layers of material and the second metal level of being located at another material between two-layer the first metal layer.
10. the OLED lighting source as described in claim 7-9, is characterized in that, any point distance described contact conductor region described in each on bonding jumper is far away, and this width of putting corresponding bonding jumper is larger.
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| CN201310677530.5A CN103702467B (en) | 2013-12-13 | 2013-12-13 | A kind of OLED illumination source |
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| CN201310677530.5A CN103702467B (en) | 2013-12-13 | 2013-12-13 | A kind of OLED illumination source |
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| CN106229422A (en) * | 2016-09-05 | 2016-12-14 | 京东方科技集团股份有限公司 | Light fixture and illuminator |
| CN107420822A (en) * | 2017-04-26 | 2017-12-01 | 上海小糸车灯有限公司 | A kind of OLED automobile lightings screen body and automobile lamp |
| CN110265534A (en) * | 2019-06-20 | 2019-09-20 | 合肥彩虹蓝光科技有限公司 | A kind of semiconductor structure |
| CN110265515A (en) * | 2019-06-20 | 2019-09-20 | 合肥彩虹蓝光科技有限公司 | A kind of light-emitting diode chip for backlight unit and its manufacturing method |
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| CN103702467B (en) | 2018-07-24 |
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Effective date of registration: 20160127 Address after: 065500 Langfang new industrial demonstration zone, Hebei Applicant after: GU'AN YEOLIGHT TECHNOLOGY CO., LTD. Address before: 100085 Haidian District, East Road, Beijing, the first floor of the building on the 1st floor of the Applicant before: Weixinnuo Science and Technology Co., Ltd., Beijing |
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