CN204130537U - A kind of OLED panel and display unit - Google Patents
A kind of OLED panel and display unit Download PDFInfo
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- CN204130537U CN204130537U CN201420617447.9U CN201420617447U CN204130537U CN 204130537 U CN204130537 U CN 204130537U CN 201420617447 U CN201420617447 U CN 201420617447U CN 204130537 U CN204130537 U CN 204130537U
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- 239000000758 substrate Substances 0.000 claims abstract description 46
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 4
- 239000010410 layer Substances 0.000 claims description 64
- 239000012044 organic layer Substances 0.000 claims description 14
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000027756 respiratory electron transport chain Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model relates to a kind of oled panel and display unit, wherein oled panel comprises substrate and is successively set on anode layer, organic luminous layer, the cathode layer on substrate, and described substrate is provided with multiple groove formation lens arra near the one side of described anode layer.The beneficial effects of the utility model are: the arranging of lens arra is reduced the light that sends of organic luminous layer, between described anode layer and described substrate and between described substrate and air, total reflection occurred, and increases the utilance of the light that organic luminous layer sends.
Description
Technical field
The utility model relates to organic electro-optic device preparation field, particularly relates to a kind of oled panel and display unit.
Background technology
OLED (Organic Light-Emitting Diode) technology is foresight technology more popular in recent years, OLED is with its self-luminous, the features such as high-contrast, wide viewing angle, high corresponding speed are more and more subject to people's attention, and become desirable display device of future generation.But OLED also has some problems of self, such as, the coupling luminous efficiency of OLED, only below 20%, wastes a large amount of photons.Therefore the coupling luminous efficiency improving OLED is most important.
Generally the patterned optical output of oled panel is as shown in Figure 1, due to the refractive index of organic luminous layer 3 and the refractive index of anode layer 2 close, thus the light produced by organic luminous layer 3 can directly by anode layer 2, because the refractive index of substrate 1 is about 1.5, be less than the refractive index of anode layer 2, thus light can there is full emission phenomena (as shown in the first light a) in the interface between anode layer 2 and substrate, a large amount of light is caused not penetrate OLED, even if close to the transmitted ray at critical reflection angle, because substrate 1 refractive index is greater than air, also total reflection (as shown in the second light b) can be there is in light on substrate 1 and Air Interface, be detained a large amount of light equally.These photons being trapped in OLED inside account for 80% ~ 85% of all output photons, so the external quantum efficiency (EQE) causing OLED is very low.
Utility model content
In order to solve the problems of the technologies described above, the utility model provides a kind of oled panel and display unit, increases the utilance of the light that organic luminous layer sends.
In order to achieve the above object, the technical solution adopted in the utility model is: a kind of oled panel, comprise substrate and be successively set on anode layer, organic luminous layer, the cathode layer on substrate, described substrate is provided with multiple groove formation lens arra near the one side of described anode layer.
Further, described groove is the hemispherical dome structure that cambered surface is formed.
Further, the refractive index organic layer identical with the refractive index of described anode layer is provided with between described substrate and described anode layer.
Further, the refractive index of described anode layer is 1.8, and described organic luminous layer is identical with the refractive index of described anode layer.
Further, the refractive index of described substrate is 1.5.
The utility model also provides a kind of display unit, comprises above-mentioned oled panel.
The beneficial effects of the utility model are: the arranging of lens arra is reduced the light that sends of organic luminous layer, between described anode layer and described substrate and between described substrate and air, total reflection occurred, and increases the utilance of the light that organic luminous layer sends.
Accompanying drawing explanation
Fig. 1 represents the structural representation of oled panel in prior art;
Fig. 2 represents oled panel structural representation in the utility model one embodiment;
Fig. 3 represents oled panel structural representation in the utility model one embodiment.
Embodiment
Be described in detail to structure of the present utility model and principle below in conjunction with accompanying drawing, illustrated embodiment, only for explaining the utility model, not limits protection range of the present utility model with this.
As shown in Figure 2, the present embodiment provides a kind of oled panel, comprises substrate 1 and sets gradually anode layer 2, organic luminous layer 3,4 layers, negative electrode on substrate 1, and described substrate 1 is provided with multiple groove formation lens arra near the one side of described anode layer 2.
The setting of lens arra, the light on the interface arriving substrate 1 can be converged, make a part of light (light c) that total reflection occurs originally on this interface can pass through interface smoothly, enter in substrate 1, owing to there occurs convergence to light, also reduce substrate 1 and the angle of incidence of light on interface, space, light can be made to appear OLED (as light d) smoothly, improve the overall outer quantum efficiency of OLED.
The arranging of lens arra is reduced the light that sends of organic luminous layer 3, between described anode layer 2 and described substrate 1 and between described substrate 1 and air, total reflection is occurred, decrease the delay of light in oled panel, increase the utilance of the light that organic luminous layer 3 sends.
Preferably, described groove is the hemispherical dome structure that cambered surface is formed.Should be understood that, described groove structure, not as limit, converges the effect of light as long as play, the pyramidal structure etc. that the structure of described groove can also adopt inclined-plane to be formed.
Preferably, the refractive index organic layer 5 identical with the refractive index of described anode layer 2 is provided with between described substrate 1 and described anode layer 2.
The refractive index of organic layer 5 is consistent with the refractive index of anode layer 2 and organic luminous layer 3, and the light that such organic luminous layer 3 produces directly will pass through organic layer 5.Due to the lens arra that substrate 1 is arranged above, the organic layer 5 forming the surface deposition of lens arra on substrate 1 will generate lens arra automatically, as shown in Figure 3, on the surface of substrate 1, the projection suitable with substrate 1 upper groove is formed with at organic layer 5, to form lens arra on the corresponding surface of organic layer 5, these lens arras can converge and arrive organic layer 5 and the light on the interface of substrate 1, then (still there is total reflection in some light to make a part of light (light f) that total reflection occurs originally on this interface can pass through interface smoothly, and it is inner to enter substrate 1), enter in glass substrate 1, owing to there occurs convergence to light, also glass substrate 1 and the angle of incidence of light on interface, space is reduced, light can be made to appear OLED (light e) smoothly, improve the overall outer quantum efficiency of OLED.Meanwhile, due to the insertion of organic layer 5, improve the blocking capability of OLED to water oxygen, promote the life-span of OLED.
Refractive index due to organic layer 5 is greater than the refractive index of substrate 1, as long as the incidence angle entering the light of substrate 1 is greater than predetermined angle (critical angle) then in substrate 1, total reflection can occur, and make light cannot penetrate substrate 1, so the light in order to farthest utilize organic luminous layer 3 to send.Reduce the generation of light in substrate 1 interface total reflection, when the cross section of described groove is arc shape structure, its radius of curvature is preferably less than 23um, and the width d of described groove structure is preferably less than 20um, the degree of depth h of described groove structure is preferably less than 10um, but not as limit.
Preferably, the refractive index of described anode layer 2 is 1.8, and described organic luminous layer 3 is identical with the refractive index of described anode layer 2.In actual fabrication process, the refractive index of organic luminous layer 3 and the refractive index close of anode layer 2, the light that organic luminous layer 3 produces directly can pass through anode layer 2.
Preferably, the refractive index of described substrate 1 is 1.5, but not as limit.
The utility model also provides a kind of display unit, comprises above-mentioned oled panel.
Below the manufacture method of oled panel in the present embodiment is specifically introduced.
The manufacture method of oled panel comprises the following steps:
Multiple groove is set on the surface at one of substrate 1 and forms lens arra;
The surface being formed with lens arra is on substrate 1 formed the figure of organic layer 5, the refractive index of organic layer 5 is identical with the refractive index of anode layer 2;
Organic layer 5 is formed the figure of anode layer 2;
Anode layer 2 is formed the figure of organic luminous layer 3;
Organic luminous layer 3 is formed the figure of 4 layers, negative electrode.
Further, anode layer 2 is formed in the step of the figure of organic luminous layer 3 and specifically comprises:
Anode layer 2 forms hole injection layer and hole transmission layer successively;
Hole transmission layer is formed pixel light emission layer;
Pixel light emission layer forms electron transfer layer;
Form electron injecting layer on the electron transport layer.
The above is the utility model preferred embodiment; it should be pointed out that to those skilled in the art, under the prerequisite not departing from described principle of the present utility model; can also make some improvements and modifications, these improvements and modifications also should be considered as the utility model protection range.
Claims (6)
1. an oled panel, comprises substrate and is successively set on anode layer, organic luminous layer, the cathode layer on substrate, it is characterized in that, described substrate is provided with multiple groove formation lens arra near the one side of described anode layer.
2. oled panel according to claim 1, is characterized in that, described groove is the hemispherical dome structure that cambered surface is formed.
3. oled panel according to claim 1, is characterized in that, is provided with the organic layer that refractive index is identical with the refractive index of described anode between described substrate and described anode layer.
4. oled panel according to claim 1, is characterized in that, the refractive index of described anode layer is 1.8, and described organic luminous layer is identical with the refractive index of described anode layer.
5. oled panel according to claim 1, is characterized in that, the refractive index of described substrate is 1.5.
6. a display unit, comprises the oled panel described in any one of claim 1-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420617447.9U CN204130537U (en) | 2014-10-23 | 2014-10-23 | A kind of OLED panel and display unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420617447.9U CN204130537U (en) | 2014-10-23 | 2014-10-23 | A kind of OLED panel and display unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204130537U true CN204130537U (en) | 2015-01-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420617447.9U Expired - Lifetime CN204130537U (en) | 2014-10-23 | 2014-10-23 | A kind of OLED panel and display unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204130537U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105118848A (en) * | 2015-09-22 | 2015-12-02 | 深圳市华星光电技术有限公司 | Organic light-emitting display device |
| CN105158829A (en) * | 2015-07-30 | 2015-12-16 | 京东方科技集团股份有限公司 | Substrate, color filter module, method for forming substrate module and display device |
| CN106449719A (en) * | 2016-11-17 | 2017-02-22 | 上海天马微电子有限公司 | Organic light-emitting display panel, device and manufacturing method |
| CN110299462A (en) * | 2019-06-25 | 2019-10-01 | 武汉华星光电半导体显示技术有限公司 | Organic electroluminescence device and Organnic electroluminescent device |
| CN110600611A (en) * | 2019-08-29 | 2019-12-20 | 武汉华星光电半导体显示技术有限公司 | Display panel and display device |
| CN114035249A (en) * | 2020-12-31 | 2022-02-11 | 广东聚华印刷显示技术有限公司 | Optical structure and display device |
-
2014
- 2014-10-23 CN CN201420617447.9U patent/CN204130537U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105158829A (en) * | 2015-07-30 | 2015-12-16 | 京东方科技集团股份有限公司 | Substrate, color filter module, method for forming substrate module and display device |
| CN105158829B (en) * | 2015-07-30 | 2019-06-04 | 京东方科技集团股份有限公司 | Substrate, colored filter mould group, the method and display device for forming substrate mould group |
| US10317586B2 (en) | 2015-07-30 | 2019-06-11 | Boe Technology Group Co., Ltd. | Substrate, color filter module, method for forming substrate module and display device |
| CN105118848A (en) * | 2015-09-22 | 2015-12-02 | 深圳市华星光电技术有限公司 | Organic light-emitting display device |
| CN106449719A (en) * | 2016-11-17 | 2017-02-22 | 上海天马微电子有限公司 | Organic light-emitting display panel, device and manufacturing method |
| CN106449719B (en) * | 2016-11-17 | 2019-08-23 | 广东聚华印刷显示技术有限公司 | A kind of organic light emitting display panel, device and production method |
| CN110299462A (en) * | 2019-06-25 | 2019-10-01 | 武汉华星光电半导体显示技术有限公司 | Organic electroluminescence device and Organnic electroluminescent device |
| CN110600611A (en) * | 2019-08-29 | 2019-12-20 | 武汉华星光电半导体显示技术有限公司 | Display panel and display device |
| CN114035249A (en) * | 2020-12-31 | 2022-02-11 | 广东聚华印刷显示技术有限公司 | Optical structure and display device |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20150128 |