CN105448200A - Method for improving OLED outdoor readability - Google Patents
Method for improving OLED outdoor readability Download PDFInfo
- Publication number
- CN105448200A CN105448200A CN201510887899.8A CN201510887899A CN105448200A CN 105448200 A CN105448200 A CN 105448200A CN 201510887899 A CN201510887899 A CN 201510887899A CN 105448200 A CN105448200 A CN 105448200A
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- China
- Prior art keywords
- oled
- light
- absorption
- antireflection film
- film
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 238000000034 method Methods 0.000 title claims abstract description 21
- 230000003287 optical effect Effects 0.000 claims abstract description 18
- 239000000463 material Substances 0.000 claims abstract description 10
- 230000031700 light absorption Effects 0.000 claims abstract description 7
- 239000011521 glass Substances 0.000 claims description 5
- 238000005516 engineering process Methods 0.000 claims description 4
- 229910052737 gold Inorganic materials 0.000 claims description 4
- 229910052709 silver Inorganic materials 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 239000005357 flat glass Substances 0.000 claims description 3
- 238000007738 vacuum evaporation Methods 0.000 claims description 3
- 229910006404 SnO 2 Inorganic materials 0.000 claims description 2
- 239000004020 conductor Substances 0.000 claims description 2
- 238000002310 reflectometry Methods 0.000 abstract description 17
- 230000000694 effects Effects 0.000 abstract description 7
- 238000010521 absorption reaction Methods 0.000 abstract description 5
- 238000002834 transmittance Methods 0.000 abstract 3
- 239000010408 film Substances 0.000 description 31
- 239000010409 thin film Substances 0.000 description 10
- 239000010410 layer Substances 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 238000001228 spectrum Methods 0.000 description 3
- 238000005728 strengthening Methods 0.000 description 3
- 229910010413 TiO 2 Inorganic materials 0.000 description 2
- 238000000985 reflectance spectrum Methods 0.000 description 2
- 238000000411 transmission spectrum Methods 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000013007 heat curing Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000001755 magnetron sputter deposition Methods 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
- G02B1/11—Anti-reflection coatings
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
- G02B5/22—Absorbing filters
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
A method for improving OLED outdoor readability is characterized in that a light absorption type material is added into antireflection film to form absorption type antireflection film, and the absorption type antireflection film is bonded to the OLED surface, so that optical properties of light are different after light is transmitted in different directions. According to the method, the absorption type antireflection film is directly applied to the surface of an OLED screen, so that when light is transmitted into the film from the outside, reflectivity is low, absorption is high, and an antireflection effect is provided. Light is emitted from the screen and radiated through the film, transmittance is approximate to the transmittance of light transmitted into the film from the outside, but reflectivity is high, and absorptivity is low. As OLED mirror reflection is relatively high, the OLED transmittance is improved as a result of the multi-reflection effect.
Description
Technical field
The present invention relates to a kind of display technique, especially a kind of OLED display technique, specifically a kind of method that simultaneously can improve oled light reflection and transmission performance, so that the high light improving OLED is readable.
Background technology
The features such as OLED display technique is low in energy consumption with it, colour gamut is high, all solid state, are extensively used in the army and the people's product.In order to make OLED normally show in high ambient light situation out of doors, usually need to carry out antireflection process to it.Traditional reinforcing antireflection LCD device adopts interlayer index matching to reduce reflection, can be reduced to less than 1%.Because OLED is higher than LCD device reflectivity a lot, same method is difficult to be applicable to OLED.OLED is usually by three layers of i.e. Al-organic luminous layer-ITO layer-Air.The reflectivity of Al is very high, result in and raises for OLED antireflection difficulty.Traditional all dielectric film has been difficult to meet OLED antireflection demand, must seek new breakthrough.
For all dielectric optical thin film, positive and negative it doesn't matter for the transmitance of optical thin film and the face of light incidence, and namely optical thin film is used conversely, optical filtering result is the same.All dielectric optics thin film has angular-sensitive performance, but its reflectivity, absorptivity and light direction are irrelevant.If can design the film that a kind of reflectivity, absorptivity are relevant with incident ray, this film just can use the high reverse--bias characteristic of OLED, not only reduces extraneous reflection, but also can increase the transmission of OLED.At this moment, just need in Film Design, to increase the high material of one or more extinction coefficients, such as Au, Ag, Al etc.The optical indicatrix expected is as Fig. 1, and absorption-type antireflecting film structure is as Fig. 2, and wherein a kind of feasible application is as Fig. 3.
Summary of the invention
The problem that the reflectivity that the object of the invention is to exist for existing all dielectric optical thin film, absorptivity and light direction have nothing to do and cause display performance under intense light conditions not good, invent a kind of method that simultaneously can improve oled light reflection and transmission performance, the characteristic that it utilizes the optical characteristics of the optical thin film containing absorbing material relevant with incident direction, improve the antireflection to OLED, improve its ambient adaptability energy.
Technical scheme of the present invention is:
A kind of method strengthening OLED outdoor readable, it is characterized in that in antireflection film, increase light absorption shaped material forms absorption-type antireflection film, this absorption-type antireflection film is glued at the surface of OLED, incident its optical characteristics rear is variant from different directions to make light.
Described light absorption shaped material is Ag, Au, Al, ITO or SnO
2conductive material, it possesses and is greater than 10 in visible-range
-3extinction coefficient, the Electro Magnetic Compatibility of OLED can be improved while its surface reflection can be reduced.
Described absorption-type antireflection film directly adopts vacuum evaporation or magnetically controlled sputter method to be prepared in surface of plate glass, is more directly glued in OLED by this coated glass.
Also a 1/4 λ wave plate, a polaroid and an antireflection film (AR) is had with optics binding technology gummed in the outside of absorption-type antireflection film (AAR).
Absorption-type antireflection layer of the present invention is blended in one deck to form a superficial layer with common antireflection layer---optical thin film, namely optical thin film is by layer forming.Optical thin film is multi-layer nano structure, by design, and customized specific optical property.
The invention has the beneficial effects as follows:
The present invention by increasing one deck absorption-type antireflecting film in traditional antireflecting film, the absorption utilizing light incident direction difference to cause film to produce and the difference of reflection are to reduce OLED reflection, thus inherently improve the performance that OLED shows out of doors, the display performance of more than 30% can be improved on year-on-year basis.
The high light that the present invention can improve OLED is readable, and by absorption-type antireflecting film is directly applied the surface with OLED screen, when light this film incident from the outside, reflectivity is low, absorbs high, possesses antireflection effect.Light sends through this film outgoing from screen, and the transmitance situation of transmitance and light this film incident is from the outside close, but reflectivity is very high, and absorptivity is low, because OLED mirror-reflection is relatively high, adds OLED transmitance by its multipath effect.
The inventive method is simple, is easy to realize, and cost performance is high.
Accompanying drawing explanation
Fig. 1 is the curve of spectrum schematic diagram of absorption-type antireflecting film of the present invention.
Fig. 2 is conventional absorption-type antireflecting film material used and thickness table.
Fig. 3 is one of absorption-type antireflecting film of the present invention and OLED position relationship schematic diagram.
Fig. 4 is the front transmitance of the embodiment of the present invention.
Fig. 5 is the frontside reflectivity of the embodiment of the present invention.
Fig. 6 is the front absorptivity of the embodiment of the present invention.
Fig. 7 is the reverse side transmitance of the embodiment of the present invention.
Fig. 8 is the reverse side reflectivity of the embodiment of the present invention.
Fig. 9 is the reverse side absorptivity of the embodiment of the present invention.
Figure 10 absorption-type antireflecting film of the present invention and OLED position relationship schematic diagram two.
Embodiment
Embodiment one.
As shown in figs 1-9.
A kind of method strengthening OLED outdoor readable, it is by increasing one or more layers thin layer formed by light absorption shaped material to form absorption-type antireflection film in antireflection film, this absorption-type antireflection film is glued at the surface of OLED, incident its optical characteristics rear is variant from different directions to make light.
Light absorption shaped material in typical absorption-type antireflecting film can adopt Ag, Au, Mo, TiO
2deng material.Spectral characteristic as shown in Figure 1.Absorption-type antireflecting film of the present invention comprises SiO
2, TiO
2, Ag nano thin-film, the method such as vacuum evaporation, magnetron sputtering directly can be adopted to be prepared in surface of plate glass, then this coated glass liquid glue is directly glued at OLED display screen, as Fig. 3.Be Fig. 4 from 101 of Fig. 3 incident its optical transmission spectra curves of light.From 101 of Fig. 3 incident relatively low (see figure 5)s of its reflectance spectrum of light.From 101 of Fig. 3 incident its absorptivity spectrum of light as shown in Figure 6.Be Fig. 7 from 201 of Fig. 3 incident its optical transmission spectra curves of light, still there is certain transmitance.Be Fig. 8 from 201 of Fig. 3 incident its reflectance spectrums of light, relative another side incidence is slightly high.From 201 of Fig. 3 incident its absorptivity spectrum of light in the lower (see figure 9) of visible light wave range.
By Fig. 4-9 as seen from its transmitance of light of both direction incidence (101 and 201) be the same, but reflectivity and absorptivity are all different.
Embodiment two.
As shown in Figure 10.
The difference of the present embodiment and embodiment also glues together with optics binding technology in the outside of absorption-type antireflection film (AAR) to have a 1/4 λ wave plate, a polaroid and an antireflection film (AR).It is that absorption-type antireflecting film is matched wave plate refractive index, with OCA glue laminating wave plate, polaroid is fitted in the light glass surface of one side anti reflection glass, polaroid and wave plate is glued together with heat curing optical cement.High from 201 of Figure 10 incident its reflectivity of light, absorptivity is low, and low from 101 of Figure 10 incident its reflectivity of light, absorptivity is high.From 101 of Figure 10 incident light, reflectivity is low, and some light is through rear, again through linear polarizer and 1/4 λ wave plate, light becomes dextrorotation disk light, behind OLED surface, reflection ray is after 1/4 λ wave plate, and light becomes the linearly polarized light vertical with incident ray.From 201 of Figure 10 incident light, after absorption-type antireflecting film, because its reflectivity is high, reflected by most of light, through OLED surface, reflectivity is high, further for light transmission is gone out, so play anti-reflection effect, effect has precedence over the effect of embodiment one further, and cost slightly increases.。
The part that the present invention does not relate to prior art that maybe can adopt same as the prior art is realized.
Claims (4)
1. one kind strengthens the method for OLED outdoor readable, it is characterized in that in antireflection film, increase light absorption shaped material forms absorption-type antireflection film, this absorption-type antireflection film is glued at the surface of OLED, incident its optical characteristics rear is variant from different directions to make light.
2. the method according to right 1, is characterized in that described light absorption shaped material is Ag, Au, Al, ITO or SnO
2conductive material, it possesses and is greater than 10 in visible-range
-3extinction coefficient, the Electro Magnetic Compatibility of OLED can be improved while its surface reflection can be reduced.
3. method according to claim 1, is characterized in that described absorption-type antireflection film directly adopts vacuum evaporation or magnetically controlled sputter method to be prepared in surface of plate glass, is more directly glued in OLED by this coated glass.
4. method according to claim 1, is characterized in that also having a 1/4 λ wave plate, a polaroid and an antireflection film (AR) with optics binding technology gummed in the outside of absorption-type antireflection film (AAR).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510887899.8A CN105448200A (en) | 2015-12-04 | 2015-12-04 | Method for improving OLED outdoor readability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510887899.8A CN105448200A (en) | 2015-12-04 | 2015-12-04 | Method for improving OLED outdoor readability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105448200A true CN105448200A (en) | 2016-03-30 |
Family
ID=55558321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510887899.8A Pending CN105448200A (en) | 2015-12-04 | 2015-12-04 | Method for improving OLED outdoor readability |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105448200A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110957348A (en) * | 2019-12-18 | 2020-04-03 | 京东方科技集团股份有限公司 | Display panel, manufacturing method thereof and display device |
| CN111624805A (en) * | 2020-05-09 | 2020-09-04 | 中国电子科技集团公司第五十五研究所 | Method for reducing reflectivity of attached liquid crystal display assembly |
| CN112078125A (en) * | 2020-09-14 | 2020-12-15 | 惠州徳为智能技术有限公司 | Film pasting method of LED module and display screen |
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|---|---|---|---|---|
| US20080199671A1 (en) * | 2007-02-21 | 2008-08-21 | Asahi Glass Company, Limited | Glass sheet with antireflection film and laminated glass for windows |
| US7434002B1 (en) * | 2006-04-24 | 2008-10-07 | Vmware, Inc. | Utilizing cache information to manage memory access and cache utilization |
| CN102540562A (en) * | 2012-01-06 | 2012-07-04 | 中国电子科技集团公司第五十五研究所 | High-transmittance low-reflection electromagnetic screening structure for liquid crystal display screen and manufacturing method for structure |
| CN202661750U (en) * | 2012-01-04 | 2013-01-09 | 深圳市三海光电技术有限公司 | Low-reflectivity separating type capacitor touch screen liquid crystal board module |
| CN103744221A (en) * | 2013-12-12 | 2014-04-23 | 中国电子科技集团公司第五十五研究所 | Method for improving display contrast of displayer under strong light environment |
| CN103753897A (en) * | 2014-01-13 | 2014-04-30 | 福耀玻璃工业集团股份有限公司 | Wide-angle broadband anti-reflection coated glass |
| CN103771727A (en) * | 2013-12-31 | 2014-05-07 | 河南安彩高科股份有限公司 | Anti-reflection glass substrate as well as preparation method and application thereof |
| CN204790248U (en) * | 2015-06-22 | 2015-11-18 | 上海冠显光电科技有限公司 | Visual display device under sunshine |
-
2015
- 2015-12-04 CN CN201510887899.8A patent/CN105448200A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7434002B1 (en) * | 2006-04-24 | 2008-10-07 | Vmware, Inc. | Utilizing cache information to manage memory access and cache utilization |
| US20080199671A1 (en) * | 2007-02-21 | 2008-08-21 | Asahi Glass Company, Limited | Glass sheet with antireflection film and laminated glass for windows |
| CN202661750U (en) * | 2012-01-04 | 2013-01-09 | 深圳市三海光电技术有限公司 | Low-reflectivity separating type capacitor touch screen liquid crystal board module |
| CN102540562A (en) * | 2012-01-06 | 2012-07-04 | 中国电子科技集团公司第五十五研究所 | High-transmittance low-reflection electromagnetic screening structure for liquid crystal display screen and manufacturing method for structure |
| CN103744221A (en) * | 2013-12-12 | 2014-04-23 | 中国电子科技集团公司第五十五研究所 | Method for improving display contrast of displayer under strong light environment |
| CN103771727A (en) * | 2013-12-31 | 2014-05-07 | 河南安彩高科股份有限公司 | Anti-reflection glass substrate as well as preparation method and application thereof |
| CN103753897A (en) * | 2014-01-13 | 2014-04-30 | 福耀玻璃工业集团股份有限公司 | Wide-angle broadband anti-reflection coated glass |
| CN204790248U (en) * | 2015-06-22 | 2015-11-18 | 上海冠显光电科技有限公司 | Visual display device under sunshine |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110957348A (en) * | 2019-12-18 | 2020-04-03 | 京东方科技集团股份有限公司 | Display panel, manufacturing method thereof and display device |
| CN110957348B (en) * | 2019-12-18 | 2022-12-02 | 京东方科技集团股份有限公司 | Display panel, manufacturing method thereof and display device |
| CN111624805A (en) * | 2020-05-09 | 2020-09-04 | 中国电子科技集团公司第五十五研究所 | Method for reducing reflectivity of attached liquid crystal display assembly |
| CN112078125A (en) * | 2020-09-14 | 2020-12-15 | 惠州徳为智能技术有限公司 | Film pasting method of LED module and display screen |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20190410 Address after: 211100 Room 202, Zhongguancun Software Park, No. 7 Yingcui Road, Jiangning Development Zone, Nanjing City, Jiangsu Province Applicant after: Nanjing Guozhao Photoelectric Technology Co., Ltd. Address before: 210016 No. 524 Zhongshan East Road, Nanjing, Jiangsu Province Applicant before: No.55 Inst., China Electronic Science and Technology Group Corp. |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160330 |