CN201946241U - Auxiliary electrode arrangement structure of OLED (organic light emitting diode) lighting panel - Google Patents
Auxiliary electrode arrangement structure of OLED (organic light emitting diode) lighting panel Download PDFInfo
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- CN201946241U CN201946241U CN2010206619084U CN201020661908U CN201946241U CN 201946241 U CN201946241 U CN 201946241U CN 2010206619084 U CN2010206619084 U CN 2010206619084U CN 201020661908 U CN201020661908 U CN 201020661908U CN 201946241 U CN201946241 U CN 201946241U
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- auxiliary electrode
- anode layer
- oled
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Abstract
The utility model discloses an auxiliary electrode arrangement structure of an OLED (organic light emitting diode) lighting panel, and the structure can guarantee the uniformity of the brightness of a whole panel while increasing a light-emitting area. The auxiliary electrode arrangement structure of the OLED lighting panel comprises auxiliary electrodes arranged on a rectangular anode layer, and the auxiliary electrodes are composed of straight auxiliary electrode strips; and all the auxiliary electrode strips are uniformly arranged on the rectangular anode layer and are divided into one or two groups according to an acute angel alpha between each auxiliary electrode strip and a long side of the rectangular anode layer, wherein the acute angels alpha in each group are equal, and the acute angles are 30-60 DEG and are preferentially 40-50 DEG. In the utility model, the arrangement direction of the auxiliary electrodes on the rectangular anode layer is just simply changed, therefore, the auxiliary electrode arrangement structure can be ensured to have larger light-emitting area on the rectangular OLED lighting panel of the same size under the condition of equal uniformity of the brightness of the panel so as to improve the light-emitting efficiency.
Description
Technical field
The utility model relates to a kind of oled panel, the auxiliary electrode arrangement of especially this oled panel its transparent anode on microcosmic.
Background technology
Existing OLED illumination panel is usually by anode layer, luminescent layer and cathode layer are formed, described anode layer is made of transparent anode, described cathode layer is made of metallic cathode, because the resistance of transparent anode side is bigger, is about 10 Ω/, voltage drop is serious, general OLED face is luminous to be obvious more from the place voltage drop phenomenon far away more of power supply supply, causes illumination panel that tangible brightness irregularities phenomenon is arranged.
For improving the unevenness of illumination panel brightness, people have proposed a lot of schemes, basically all be on the transparent anode layer, to increase to be communicated with described transparent anode, and the auxiliary electrode that is interconnected between self, auxiliary electrode is made by conducting metal, side's resistance is less, be about 1 Ω/, current voltage drop reduces, during energising, the impedance and the current voltage drop of the transparent anode of panel are reduced, and brightness uniformity is improved.The OLED illumination panel mostly is rectangle, anode layer also is a rectangle, in the prior art, the auxiliary electrode arrangement that it adopts is generally grid square shape and arranges, be that described auxiliary electrode is vertical bar shaped, evenly the compartment of terrain is arranged on the rectangle anode layer of transparent anode formation, and auxiliary electrode is communicated with transparent anode, and each bar auxiliary electrode is parallel to wherein limit of rectangle anode layer.
But because auxiliary electrode is opaque, light can't pass, therefore increase auxiliary electrode after, be positioned at the light that the luminescent layer of auxiliary electrode top sends and can't enter the transparent anode layer, the light-emitting area of counter plate has adverse influence.
The utility model content
Unreasonable in order to overcome existing OLED illumination panel auxiliary electrode arrangement, the deficiency that light-emitting area is less, technical problem to be solved in the utility model provide a kind of OLED illumination panel auxiliary electrode arrangement that can increase light-emitting area at assurance whole front panel brightness uniformity simultaneously.
The technical scheme that its technical matters that solves the utility model adopts is: OLED illumination panel auxiliary electrode arrangement, the OLED illumination panel comprises the auxiliary electrode on the rectangle anode layer, auxiliary electrode is communicated with the transparent anode that constitutes the rectangle anode layer, auxiliary electrode is made up of the auxiliary electrode bar of vertical bar shaped, each auxiliary electrode bar is arranged on the rectangle anode layer equably, size according to the acute angle angle α between the long limit of each bar auxiliary electrode bar and this rectangle anode layer, all the auxiliary electrode bar is divided into one group or two groups, acute angle angle α equates this angle α=30 °~60 ° in described each group.
Further be described angle α=40 °~50 °.
Further be described angle α=45 °.
Described whole auxiliary electrode bar can be divided into two groups, wherein one group and another group square crossing layout.
The beneficial effects of the utility model are: simply change the arragement direction of auxiliary electrode on the rectangle anode layer, on the rectangle OLED illumination panel that just can make in identical size, under the suitable situation of brightness uniformity, bigger light-emitting area is arranged, thereby improved luminescence efficiency.
Description of drawings
Fig. 1 is the structural representation of OLED illumination panel.
Fig. 2 is existing OLED illumination panel auxiliary electrode arrangement synoptic diagram.
Fig. 3 is an OLED illumination panel auxiliary electrode arrangement synoptic diagram of the present invention.
Fig. 4 is another synoptic diagram of OLED illumination panel auxiliary electrode arrangement of the present invention.
Be labeled as 1-cathode layer, 2-luminescent layer, 3-auxiliary electrode, 4-rectangle anode layer, the long limit of 5-, 6-auxiliary electrode bar, α-angle among the figure.
Embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
As shown in Figure 1 and Figure 2, auxiliary electrode arrangement used in the prior art is generally grid square shape and arranges, be that described auxiliary electrode 3 is vertical bar shaped, evenly the compartment of terrain is arranged on the rectangle anode layer 4 of transparent anode formation, and each bar auxiliary electrode 3 is parallel to wherein limit of rectangle anode layer 4.
As Fig. 3, shown in Figure 4, OLED illumination panel auxiliary electrode arrangement of the present utility model, the OLED illumination panel comprises the auxiliary electrode on the rectangle anode layer 4, auxiliary electrode is communicated with the transparent anode that constitutes rectangle anode layer 4, auxiliary electrode is made up of the auxiliary electrode bar 6 of vertical bar shaped, each auxiliary electrode bar 6 is arranged on the rectangle anode layer 4 equably, size according to the acute angle angle α between the long limit 5 of each bar auxiliary electrode bar 6 and this rectangle anode layer 4, all auxiliary electrode bar 6 is divided into one group or two groups, acute angle angle α equates this angle α=30 °~60 ° in described each group.Through drawing after the present utility model people's the quantitative analysis: under the identical situation of the distribution density of auxiliary electrode as drawing a conclusion, be under the width of auxiliary electrode bar 6 and the situation that spacing remains unchanged, when making the limit of auxiliary electrode bar 6 and panel that certain angle be arranged, light-emitting area can increase, thereby the raising luminescence efficiency, this is that many people are unexpected.Certainly, same conclusion when being square shape, rectangle anode layer 4 is also arranged.
Below be a wherein routine calculating chart of inventor: in 100 μ m * 100 μ m unit areas, every auxiliary electrode bar width is 2 μ m, spacing between the electrode strip is that 8 μ m calculate, as adopts existing arrangement shown in Figure 2, and its auxiliary electrode area is 3600 μ m
2, as adopt arrangement shown in Figure 3, and promptly there is the structure of 45 ° of angles on the limit of auxiliary electrode bar 6 and rectangle anode layer 4, and its auxiliary electrode area is 3561 μ m
2, promptly the light-emitting area of unit area has increased 39 μ m
2Among 100 μ m * 100 μ m, light-emitting area has just increased by 39 μ m
2, but generally to calculate at the finished product OLED illumination panel of 100000 μ mx100000 μ m sizes at least, its light-emitting area has just had bigger difference, has increased 39mm
2
If the width of auxiliary electrode bar 6, spacing and and the long limit 5 of rectangle anode layer 4 between acute angle angle α when changing, can calculate the changing value that calculates corresponding light-emitting area by mathematics, this is that those skilled in the art can verify under the utility model enlightenment.
Improve effect for obtaining tangible light-emitting area, described angle α=40 °~50 °.
More preferably, described angle α=45 °.
When auxiliary electrode was arranged to mesh shape, then described whole auxiliary electrode bars 6 can be divided into two groups, and wherein one group preferably arrange with another group square crossing, obtain the effect that comprehensive light-emitting area increases.
Embodiment one:
As shown in Figure 3, auxiliary electrode on the rectangle anode layer 4 of OLED illumination panel is made up of the auxiliary electrode bar 6 of vertical bar shaped, each auxiliary electrode bar 6 is arranged on the rectangle anode layer 4 equably, and every auxiliary electrode bar 6 all has the acute angle angle α that equates with the limit of this rectangle anode layer 4, α=45 °.Described whole auxiliary electrode bar 6 can be divided into two groups, and wherein one group and another group square crossing layout promptly are oblique grid and arrange.
Embodiment two:
As shown in Figure 4, auxiliary electrode on the rectangle anode layer 4 of OLED illumination panel is made up of the auxiliary electrode bar 6 of vertical bar shaped, each auxiliary electrode bar 6 is arranged on the rectangle anode layer 4 equably, and every auxiliary electrode bar 6 all has the acute angle angle α that equates with the limit of this rectangle anode layer 4, α=45 °.Described whole auxiliary electrode bar 6 is parallel mutually, promptly is oblique line and arranges.
Claims (4)
1.OLED illumination panel auxiliary electrode arrangement, the OLED illumination panel comprises the auxiliary electrode on the rectangle anode layer (4), auxiliary electrode is communicated with the transparent anode that constitutes rectangle anode layer (4), auxiliary electrode is made up of the auxiliary electrode bar (6) of vertical bar shaped, each auxiliary electrode bar (6) is arranged on the rectangle anode layer (4) equably, it is characterized in that: according to the size of the acute angle angle α between the long limit (5) of each bar auxiliary electrode bar (6) and this rectangle anode layer (4), all auxiliary electrode bar (6) is divided into one group or two groups, acute angle angle α equates this angle α=30 °~60 ° in described each group.
2. OLED illumination panel auxiliary electrode arrangement as claimed in claim 1 is characterized in that: described angle α=40 °~50 °.
3. OLED illumination panel auxiliary electrode arrangement as claimed in claim 2 is characterized in that: described angle α=45 °.
4. as claim 1,2 or 3 described OLED illumination panel auxiliary electrode arrangements, it is characterized in that: described whole auxiliary electrode bars (6) can be divided into two groups, wherein one group and another group square crossing layout.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN2010206619084U CN201946241U (en) | 2010-12-15 | 2010-12-15 | Auxiliary electrode arrangement structure of OLED (organic light emitting diode) lighting panel |
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CN2010206619084U CN201946241U (en) | 2010-12-15 | 2010-12-15 | Auxiliary electrode arrangement structure of OLED (organic light emitting diode) lighting panel |
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CN201946241U true CN201946241U (en) | 2011-08-24 |
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CN2010206619084U Expired - Lifetime CN201946241U (en) | 2010-12-15 | 2010-12-15 | Auxiliary electrode arrangement structure of OLED (organic light emitting diode) lighting panel |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102074167A (en) * | 2010-12-15 | 2011-05-25 | 四川虹视显示技术有限公司 | Auxiliary electrode arrangement structure of organic light-emitting diode (OLED) lighting panel |
CN106953026A (en) * | 2017-03-21 | 2017-07-14 | 京东方科技集团股份有限公司 | Display panel and its manufacture method, display device |
-
2010
- 2010-12-15 CN CN2010206619084U patent/CN201946241U/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102074167A (en) * | 2010-12-15 | 2011-05-25 | 四川虹视显示技术有限公司 | Auxiliary electrode arrangement structure of organic light-emitting diode (OLED) lighting panel |
CN106953026A (en) * | 2017-03-21 | 2017-07-14 | 京东方科技集团股份有限公司 | Display panel and its manufacture method, display device |
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Granted publication date: 20110824 |
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CX01 | Expiry of patent term |