CN203812883U - OLED display panel and OLED display device applying same - Google Patents
OLED display panel and OLED display device applying same Download PDFInfo
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- CN203812883U CN203812883U CN201420235740.9U CN201420235740U CN203812883U CN 203812883 U CN203812883 U CN 203812883U CN 201420235740 U CN201420235740 U CN 201420235740U CN 203812883 U CN203812883 U CN 203812883U
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- oled display
- chock insulator
- insulator matter
- negative electrode
- auxiliary electrode
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Abstract
The utility model discloses an OLED display panel and an OLED display device applying the same, which relate to the field of electroluminescence display technology, and solve the problem that the open circuit between an auxiliary electrode and a cathode is prone to occur in the existing top-emission type OLED display panel due to too large pressure in box alignment. In the embodiment of the utility model, the OLED display panel comprises an array substrate and a color film substrate, wherein the array substrate is covered with a cathode, and an auxiliary electrode is formed on the color film substrate; the OLED display panel further comprises a contact structure between the color film substrate and the array substrate, wherein the contact structure enables the cathode to be electrically connected with the auxiliary electrode, and an area of the contact part between the contact structure and the array substrate is greater than or equal to that of the contact part between the auxiliary electrode and the contact structure. The embodiment of the utility model further provides an OLED display device applying the OLED display panel.
Description
Technical field
The utility model relates to electroluminescence and shows, relates in particular to OLED display floater and applies its OLED display unit.
Background technology
In panel display board, OLED (Organic Ligtht Emitting Display, Organic Light Emitting Diode) display floater because thering is self-luminous, reaction is fast, visual angle is wide, brightness is high, color is gorgeous, the advantage such as frivolous obtains people extensive attention.
According to the different OLED display floaters of light-emitting area, can be divided into top transmitting and the end is launched two kinds.Fig. 1 shows the structure of a pixel in top-emitting OLED display floater, comprise array base palte and color membrane substrates, comprise array base palte the film transistor device layer (not shown in figure 1), anode 103, the pixel that are formed on first substrate 101 define layer 104, luminescent layer 105 and negative electrode 106, and color membrane substrates comprises black matrix 108, colored filter 109 and the flatness layer 110 that is formed on second substrate 107.It is corresponding with black matrix 108 positions that pixel defines layer 104.During the work of OLED display floater, by apply voltage between anode 103 and negative electrode 106, luminescent layer 105 is stimulated and luminous, light (as shown in Fig. 1 hollow core arrow) passes from the color membrane substrates at transparent negative electrode 106 and top, has realized top transmitting.
OLED display floater comprises the pel array being comprised of pixel shown in a plurality of Fig. 1, and the anode 103 of each pixel defines layer 104 by pixel to be separated, and realizes electrically insulated from one another, and the anode of each pixel obtains the signal of telecommunication by connected thin-film transistor.Luminescent layer 105 and negative electrode 106 cover whole pel array, by the power supply that is positioned at pel array one side, are that negative electrode is powered.
Conventionally, in order to increase the transmitance of light, negative electrode need to adopt thinner transparent conductive material, but thinner transparent cathode sheet resistance is very large, when flowing through negative electrode, electric current can produce larger pressure drop, and therefore, less apart from the cathode voltage obtaining in power supply feed point pixel far away, cause the display brightness of this pixel low than the display brightness of the pixel nearer apart from power supply feed point, thereby make the brightness uniformity variation of OLED display unit.
For addressing this problem, prior art has proposed to arrange on the flatness layer of color membrane substrates auxiliary electrode 111 that resistance is less to reduce the scheme of negative electrode 106 resistance, as shown in Figure 1.On auxiliary electrode 111, be formed with chock insulator matter 112, while having prevented color membrane substrates and array base palte to box, between two substrates, hard contact causes substrate surface damage.Color membrane substrates surface also covers transparency conducting layer 113, with after color membrane substrates and array base palte are to box, realizes being electrically connected between auxiliary electrode 111 and negative electrode 106.
When the OLED display floater shown in shop drawings 1, inventor finds: because the chock insulator matter 112 being formed on auxiliary electrode 111 has elongated pyramidal structure, the area on top is less, when color membrane substrates and array base palte are during to box, the transparency conducting layer that chock insulator matter top covers contacts with array base palte, because chock insulator matter apex area is little, the area of contact portion is significantly less than auxiliary electrode towards the area on array base palte surface, larger pressure is applied on chock insulator matter 112, make the suffered pressure in the top of chock insulator matter 112 larger, the impact that the transparency conducting layer 113 on top is subject to this pressure is easily ruptured, thereby easily cause opening circuit between negative electrode and auxiliary electrode.
Utility model content
Embodiment of the present utility model provides a kind of OLED display floater and applies its OLED display unit, the excessive problem that easily causes auxiliary electrode and negative electrode to open circuit of pressure while having solved in existing top-emitting OLED display floater box.
For achieving the above object, embodiment of the present utility model adopts following technical scheme:
A kind of OLED display floater, comprise array base palte and color membrane substrates, on described array base palte, be coated with negative electrode, on described color membrane substrates, be formed with auxiliary electrode, wherein, also comprise: be arranged at the contact structures between described color membrane substrates and described array base palte, described contact structures are electrically connected to described negative electrode and described auxiliary electrode, and the area of described contact structures and described array base palte contact portion is more than or equal to the area of described auxiliary electrode and described contact structures contact portion.
Alternatively, described contact structures comprise chock insulator matter and the transparent conductive film being formed on described color membrane substrates, described chock insulator matter is formed on described auxiliary electrode, described transparent conductive film covers the surface of described color membrane substrates, and the described auxiliary electrode that at least covers described chock insulator matter surface and do not blocked by described chock insulator matter; The pixel of described array base palte defines a layer position for upper corresponding described chock insulator matter and has depressed part; Described negative electrode also covers described depressed part surface, and the chock insulator matter of transparent conductive film inserts surface coverage described in surface coverage has in the described depressed part of described negative electrode.
Further, the surface configuration of the described depressed part described in surface coverage after negative electrode, mates with the surface configuration of described chock insulator matter after transparent conductive film described in the surface coverage being contained in wherein.
Preferably, be contained in described in the surface coverage in described depressed part and be filled with conducting resinl between the described chock insulator matter after transparent conductive film and the negative electrode in described depressed part.
Alternatively, described contact structures comprise the chock insulator matter on the flatness layer that is formed on described color membrane substrates, and described auxiliary electrode is positioned at the top of described chock insulator matter; The pixel of described array base palte defines a layer position for upper corresponding described chock insulator matter and has depressed part; Described negative electrode also covers described depressed part surface; The chock insulator matter insertion surface coverage that end is formed with described auxiliary electrode has in the described depressed part of described negative electrode.
Further, the surface configuration of the described depressed part described in surface coverage after negative electrode, mates with the surface configuration that is contained in end wherein and is formed with the described chock insulator matter of described auxiliary electrode.
Preferably, be contained in the described chock insulator matter that described depressed part medial end portions is formed with described auxiliary electrode, and be filled with conducting resinl between the negative electrode in described depressed part.
Alternatively, in the space between described array base palte and described color membrane substrates, be filled with electrically conducting transparent glue, described electrically conducting transparent glue is at least filled between described auxiliary electrode and described negative electrode, to form described contact structures.
An OLED display unit, is characterized in that, comprises above-mentioned OLED display floater.
The OLED display floater that the utility model embodiment provides and applying in its OLED display unit, because making auxiliary electrode, these contact structures are connected with cathodic electricity, and these contact structures are greater than with the area of array base palte contact portion the area that auxiliary electrode contacts with contact structures, make to have between contact structures and the negative electrode of array base palte surface coverage the contact area of increase, when color membrane substrates and array base palte are during to box, even if contact structures are subject to larger pressure, the suffered pressure of its contact portion is also less, can greatly reduce pressure when to box and make greatly the risk opening circuit between auxiliary electrode and negative electrode.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of existing OLED display floater;
The structural representation of a kind of OLED display floater that Fig. 2 provides for the utility model embodiment;
Fig. 3 is the structural representation of the OLED display floater shown in Fig. 2 after to box;
The structural representation of another OLED display floater that Fig. 4 provides for the utility model embodiment;
Fig. 5 is the structural representation of the OLED display floater shown in Fig. 4 after to box;
The structural representation of another OLED display floater that Fig. 6 provides for the utility model embodiment.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Embodiment based in the utility model, the every other embodiment that those of ordinary skills obtain under the prerequisite of not making creative work, belongs to the scope that the utility model is protected.
The utility model embodiment provides a kind of OLED display floater.As shown in Figure 2, OLED display floater comprises array base palte 21 and color membrane substrates 22, on array base palte 21, be coated with negative electrode 211, on color membrane substrates 22, be formed with auxiliary electrode 221, this OLED display floater also comprises the contact structures that are arranged between color membrane substrates 22 and array base palte 21, these contact structures are electrically connected to negative electrode 211 and auxiliary electrode 221, and the area of contact structures and array base palte 21 contact portions is greater than the area of auxiliary electrode 221 and contact structures contact portion.
In the OLED display floater that the utility model embodiment provides, because making auxiliary electrode, these contact structures are connected with cathodic electricity, and these contact structures are greater than with the area of array base palte contact portion the area that auxiliary electrode contacts with contact structures, make to have between contact structures and the negative electrode of array base palte surface coverage the contact area of increase, when color membrane substrates and array base palte are during to box, even if contact structures are subject to larger pressure, the suffered pressure of its contact portion is also less, can greatly reduce pressure when to box and make greatly the risk opening circuit between auxiliary electrode and negative electrode.
In the OLED display floater that above-described embodiment provides, contact structures specifically can be as shown in Figure 2, comprise the chock insulator matter 23 and the transparent conductive film 24 that are formed on color membrane substrates 22, chock insulator matter 23 is formed on auxiliary electrode 221, transparent conductive film 24 covers the surface of color membrane substrates 22, and the auxiliary electrode 221 that at least covers chock insulator matter 23 surfaces and do not blocked by chock insulator matter 23.The position that the pixel of array base palte 21 defines corresponding chock insulator matter 23 on layer 212 has depressed part D; Negative electrode 211 also covers depressed part D surface, and the chock insulator matter 23 of surface coverage transparent conductive film 24 inserts surface coverage to be had in the depressed part D of negative electrode 211.
It should be noted that: in order to make contact structures clearer, concrete structure to array base palte before box 21, color membrane substrates 22 and contact structures has been shown in Fig. 2, therefore, in Fig. 2, the chock insulator matter 23 of surface coverage transparent conductive film 24 does not insert surface coverage and has in the depressed part D of negative electrode 211.And the structure of the OLED display floater that the present embodiment is described is to the structure after box, as shown in Figure 3.
Transparent conductive film 24 in depressed part D is above-mentioned contact structures and the contact portion of array base palte with the contact portion of negative electrode 211.Because this contact portion not only comprises transparency conducting layer 24 surfaces that chock insulator matter 23 tops cover, also comprise transparency conducting layer 24 surfaces that chock insulator matter 23 partial sidewall cover, the area of contact portion is enlarged markedly, be greater than the area of auxiliary electrode 221 and chock insulator matter 23 contact portions (being the part that auxiliary electrode contacts with contact structures).When chock insulator matter 23 is stressed, the pressure being applied on transparency conducting layer 24 will reduce greatly, thereby has reduced the risk opening circuit between auxiliary electrode 221 that transparency conducting layer 24 fractures cause and negative electrode 211.
In OLED display floater shown in Fig. 3, the surface configuration of the depressed part D after surface coverage negative electrode 211, preferably mates with the surface configuration of chock insulator matter 23 after the surface coverage transparent conductive film 24 being contained in wherein.Make transparent conductive film 24 and negative electrode close contact gapless, prevent the increase of contact resistance.
In addition, in the OLED display floater shown in Fig. 2, being contained in can filled conductive glue 25 between chock insulator matter 23 after the surface coverage transparent conductive film 24 in depressed part D and the negative electrode 211 in depressed part D.With between transparent conductive film 24 and negative electrode 211, exist gap can not close contact in, with conducting resinl 25, fill these gaps, prevent the increase of contact resistance.
In another kind of execution mode of the present utility model, contact structures specifically can comprise the chock insulator matter 23 on the flatness layer 222 that is formed on color membrane substrates 22 as shown in Figure 4, and auxiliary electrode 221 is positioned at the top of chock insulator matter 23; The position that the pixel of array base palte 21 defines corresponding chock insulator matter 23 on layer 212 has depressed part D; Negative electrode also covers depressed part D surface; The chock insulator matter 23 insertion surface coverage that end is formed with auxiliary electrode 221 have in the depressed part D of negative electrode 211.
It should be noted that: in order to make contact structures clearer, concrete structure to array base palte before box 21, color membrane substrates 22 and contact structures has been shown in Fig. 4, therefore the chock insulator matter 23 that, Fig. 4 medial end portions is formed with auxiliary electrode 221 does not insert surface coverage to be had in the depressed part D of negative electrode 211.And the structure of the OLED display floater that the present embodiment is described is to the structure after box, as shown in Figure 5.
Chock insulator matter 23 in depressed part D is above-mentioned contact structures and the contact portion of array base palte with the contact portion of negative electrode 211.Because this contact portion comprises chock insulator matter 23 partial sidewall surfaces, the area of contact portion is enlarged markedly, be greater than the area of auxiliary electrode 221 and chock insulator matter 23 contact portions (being the part that auxiliary electrode contacts with contact structures).
In the execution mode shown in Fig. 4 and Fig. 5, owing to being positioned at the auxiliary electrode 221 on chock insulator matter 23 tops, can directly contact with the cathodic electricity of depressed part D, between chock insulator matter 23 in depressed part D and negative electrode 211, just there is no need to arrange transparency conducting layer, while making chock insulator matter 23 stressed, the problem that does not exist transparency conducting layer to be pressed down, thereby the problem having opened circuit between the excessive auxiliary electrode causing 221 of pressure and negative electrode 211 while having avoided box.
In OLED display floater shown in Fig. 5, the surface configuration of the depressed part D after surface coverage negative electrode 211, preferably mates with the surface configuration that is contained in end wherein and is formed with the chock insulator matter 23 of auxiliary electrode 221.Make auxiliary electrode 221 and chock insulator matter 23 and negative electrode 211 close contact gaplesss, prevent the increase of the contact resistance between auxiliary electrode 221 and negative electrode 211.
In addition, in the OLED display floater shown in Fig. 4, be contained in the chock insulator matter 23 that depressed part D medial end portions is formed with auxiliary electrode 221, and can be filled with conducting resinl 25 between the negative electrode in depressed part D 211.With between auxiliary electrode 221 and negative electrode 211, exist gap can not close contact in, with conducting resinl 25, fill these gaps, prevent the increase of contact resistance.
In another embodiment of the present utility model, as shown in Figure 6, in the space between array base palte 21 and color membrane substrates 22, be filled with electrically conducting transparent glue 25, this electrically conducting transparent glue 25 is at least filled between auxiliary electrode 221 and negative electrode 211, to form contact structures.
When electrically conducting transparent glue 25 is only filled between auxiliary electrode 221 and negative electrode 211, the area of the contact structures that formed by electrically conducting transparent glue 25 and array base palte 21 contact portions, equals the contact structures that formed by electrically conducting transparent glue 25 and the area of auxiliary electrode 221 contact portions.And when electrically conducting transparent glue 25 is filled in the whole space between array base palte 21 and color membrane substrates 22, the area of the contact structures that formed by electrically conducting transparent glue 25 and array base palte 21 contact portions, is greater than the contact structures that formed by electrically conducting transparent glue 25 and the area of auxiliary electrode 221 contact portions.
In the execution mode shown in Fig. 6, because the auxiliary electrode 221 being positioned on color membrane substrates 22 can electrically contact by electrically conducting transparent glue 25 and negative electrode 211, between auxiliary electrode 221 and negative electrode 211, just there is no need to arrange transparency conducting layer, again because electrically conducting transparent glue 25 has stronger deformability, while making box, even if electrically conducting transparent glue 25 is subject to the situation that larger pressure also can not be pressed down, thus the problem having opened circuit between the excessive auxiliary electrode causing 221 of pressure and negative electrode 211 while having avoided box.
The utility model embodiment also provides a kind of OLED display unit, the OLED display floater of describing comprising above-described embodiment, because the probability opening circuit between auxiliary electrode and negative electrode in this OLED display floater significantly reduces, therefore, this OLED display unit can have the display performance of remarkable lifting.
The above; it is only embodiment of the present utility model; but protection range of the present utility model is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement, within all should being encompassed in protection range of the present utility model.Therefore, protection range of the present utility model should be as the criterion with the protection range of described claim.
Claims (9)
1. an OLED display floater, comprise array base palte and color membrane substrates, on described array base palte, be coated with negative electrode, on described color membrane substrates, be formed with auxiliary electrode, it is characterized in that, also comprise: be arranged at the contact structures between described color membrane substrates and described array base palte, described contact structures are electrically connected to described negative electrode and described auxiliary electrode, and the area of described contact structures and described array base palte contact portion is more than or equal to the area of described auxiliary electrode and described contact structures contact portion.
2. OLED display floater according to claim 1, it is characterized in that, described contact structures comprise chock insulator matter and the transparent conductive film being formed on described color membrane substrates, described chock insulator matter is formed on described auxiliary electrode, described transparent conductive film covers the surface of described color membrane substrates, and the described auxiliary electrode that at least covers described chock insulator matter surface and do not blocked by described chock insulator matter;
The pixel of described array base palte defines a layer position for upper corresponding described chock insulator matter and has depressed part; Described negative electrode also covers described depressed part surface, and the chock insulator matter of transparent conductive film inserts surface coverage described in surface coverage has in the described depressed part of described negative electrode.
3. OLED display floater according to claim 2, is characterized in that, the surface configuration of the described depressed part described in surface coverage after negative electrode is mated with the surface configuration of described chock insulator matter after transparent conductive film described in the surface coverage being contained in wherein.
4. OLED display floater according to claim 2, is characterized in that, is contained in described in the surface coverage in described depressed part and is filled with conducting resinl between the described chock insulator matter after transparent conductive film and the negative electrode in described depressed part.
5. OLED display floater according to claim 1, is characterized in that, described contact structures comprise the chock insulator matter on the flatness layer that is formed on described color membrane substrates, and described auxiliary electrode is positioned at the top of described chock insulator matter;
The pixel of described array base palte defines a layer position for upper corresponding described chock insulator matter and has depressed part; Described negative electrode also covers described depressed part surface; The chock insulator matter insertion surface coverage that end is formed with described auxiliary electrode has in the described depressed part of described negative electrode.
6. OLED display floater according to claim 5, is characterized in that, the surface configuration of the described depressed part described in surface coverage after negative electrode is mated with the surface configuration that is contained in end wherein and is formed with the described chock insulator matter of described auxiliary electrode.
7. OLED display floater according to claim 5, is characterized in that, is contained in the described chock insulator matter that described depressed part medial end portions is formed with described auxiliary electrode, and is filled with conducting resinl between the negative electrode in described depressed part.
8. OLED display floater according to claim 1, it is characterized in that, in space between described array base palte and described color membrane substrates, be filled with electrically conducting transparent glue, described electrically conducting transparent glue is at least filled between described auxiliary electrode and described negative electrode, to form described contact structures.
9. an OLED display unit, is characterized in that, comprises the OLED display floater described in claim 1-8 any one.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420235740.9U CN203812883U (en) | 2014-05-09 | 2014-05-09 | OLED display panel and OLED display device applying same |
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| CN201420235740.9U CN203812883U (en) | 2014-05-09 | 2014-05-09 | OLED display panel and OLED display device applying same |
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| CN105742317A (en) * | 2014-12-29 | 2016-07-06 | 三星显示有限公司 | Organic light emitting diode display device and method of manufacturing the same |
| CN107680991A (en) * | 2017-09-29 | 2018-02-09 | 京东方科技集团股份有限公司 | A kind of OLED package substrates and its manufacture method, OLED display panel |
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| WO2018149009A1 (en) * | 2017-02-15 | 2018-08-23 | 深圳市华星光电技术有限公司 | Method for manufacturing top-emitting oled display device and structure thereof |
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- 2014-05-09 CN CN201420235740.9U patent/CN203812883U/en not_active Withdrawn - After Issue
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| CN103972270A (en) * | 2014-05-09 | 2014-08-06 | 京东方科技集团股份有限公司 | OLED display panel and OLED display device with same |
| WO2015169047A1 (en) * | 2014-05-09 | 2015-11-12 | 京东方科技集团股份有限公司 | Oled display panel and oled display device using same |
| CN103972270B (en) * | 2014-05-09 | 2016-03-02 | 京东方科技集团股份有限公司 | OLED display panel and apply its OLED display |
| US9793508B2 (en) | 2014-05-09 | 2017-10-17 | Boe Technology Group Co., Ltd. | OLED display panel and OLED display device applying it |
| CN105742317A (en) * | 2014-12-29 | 2016-07-06 | 三星显示有限公司 | Organic light emitting diode display device and method of manufacturing the same |
| WO2018149009A1 (en) * | 2017-02-15 | 2018-08-23 | 深圳市华星光电技术有限公司 | Method for manufacturing top-emitting oled display device and structure thereof |
| CN107680991A (en) * | 2017-09-29 | 2018-02-09 | 京东方科技集团股份有限公司 | A kind of OLED package substrates and its manufacture method, OLED display panel |
| CN107680991B (en) * | 2017-09-29 | 2020-05-05 | 京东方科技集团股份有限公司 | OLED packaging substrate, manufacturing method thereof and OLED display panel |
| CN108231853A (en) * | 2018-01-03 | 2018-06-29 | 京东方科技集团股份有限公司 | A kind of cover board and preparation method thereof, display panel and display device |
| CN108074962A (en) * | 2018-02-11 | 2018-05-25 | 京东方科技集团股份有限公司 | Array substrate and preparation method thereof, display panel, display device |
| CN108539043A (en) * | 2018-04-12 | 2018-09-14 | 京东方科技集团股份有限公司 | A kind of OLED display panel and its manufacturing method, display device |
| US11049917B2 (en) | 2018-04-12 | 2021-06-29 | Hefei Boe Optoelectronics Technology Co., Ltd. | OLED display panel, a method for fabricating the same, and a display device |
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