CN203225251U - Organic electroluminescent display - Google Patents
Organic electroluminescent display Download PDFInfo
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- CN203225251U CN203225251U CN 201320248765 CN201320248765U CN203225251U CN 203225251 U CN203225251 U CN 203225251U CN 201320248765 CN201320248765 CN 201320248765 CN 201320248765 U CN201320248765 U CN 201320248765U CN 203225251 U CN203225251 U CN 203225251U
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- display
- organic electroluminescence
- organic electroluminescent
- colored filter
- stratum
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Abstract
The utility model relates to an organic electroluminescent display. The organic electroluminescent display mainly has a substrate of drive elements, a plurality of organic electroluminescent elements are arranged on the substrate, and are electrically connected with the plurality of drive elements, color filters are arranged on the organic electroluminescent elements, and a transparent substrate is arranged above the color filters; wherein at least one side of the color filters grey-scale layers, and by the function of the grey-scale layer, reflected light generated by ambient light can be effectively eliminated, thereby reducing the reflectivity of a metal layer inside the organic electroluminescent display and improving the contrast ratio.
Description
Technical field
The relevant a kind of display of organic electroluminescence of the utility model refers to a kind ofly can effectively eliminate environment light source and produce catoptrical display of organic electroluminescence especially.
Background technology
(be called its principle of luminosity of organic electroluminescent LED (organic light emitting diode, OLED) display) again is to apply an extra electric field at organic molecule material (being divided into small molecule material (small molecule material) and polymeric material (polymer material) according to the big I of molecular weight) to make it produce luminescence phenomenon to display of organic electroluminescence (organic electroluminescent devices).Display of organic electroluminescence is because its self-luminosity (self emission), but array shows (dot matrix type display), have frivolous, high contrast, low consumpting power, high-resolution, reaction time short (fast response time), do not need characteristics such as backlight and wide viewing angle, and its panel size can be by the large-scale outdoor signboard of 4mm miniscope to 100 inch, be regarded as the main flow of flat-panel screens of future generation, except the application of display, there is dynamo-electric light-emitting component more can form array architecture in the material of frivolous deflection.
In the application of display, full-color is the necessary condition of market success, if distinguish according to the colorize mode, the display of organic electroluminescence structure mainly can be divided into three-colour light-emitting layer structure, color converting layer (color change media, CCM) and colorized optical filtering membrane structure (color filter, three kinds of modes such as CF), wherein three-colour light-emitting layer structure is present full-colorization of the display of organic electroluminescence mode of normal use, be with red, blue, the luminescent material of green three looks is coated in the picture element respectively, add different bias voltages producing full-color effect, and have the optimized advantage of luminous efficiency.Color converting layer then utilizes blue light to be light emitting source, converts blue light to ruddiness or green-blue light and then realization redgreenblue light respectively via photochromic switching film.In addition, the colorized optical filtering membrane structure colored filter that then adopts white light source to see through similar LCD reaches full-color effect.
At present on organic electroluminescent LED (OLED) panel because use metal as thin-film transistor (TFT) and electrode, so can produce very strong reflecting effect because of environment light source at panel appearance, and cause whole optical characteristics to reduce (for example to when colourity).
Being used for improving high reflectance and improving mode of comparing at panel at present, generally is to stick polaroid (polarizing film) at panel to add that phase shift films (retardation film) eliminates the environment reflection of light.Comparatively inconvenience on it uses.
The utility model content
The technical problem that the utility model solves is namely providing a kind of display of organic electroluminescence, refers to especially a kind ofly can effectively eliminate environment light source and produce catoptrical display of organic electroluminescence.
The technological means that the utility model adopts is as described below.
Take off purpose on reaching, display of organic electroluminescence of the present utility model mainly has the substrate of driving element, on this substrate and be provided with a plurality of organic electroluminescent devices, and electrically connect with these a plurality of driving elements, then be provided with colored filter on those organic electroluminescent devices, on this colored filter and be provided with a transparency carrier; Wherein, at least one side of this colored filter is provided with grey stratum, by the effect of this ash stratum, can effectively eliminate the reverberation that environment light source produces, and reduces the reflectivity of display of organic electroluminescence interior metal layer and improves contrast.
For reaching above-mentioned purpose, described grey stratum is positioned at the following of this colored filter, and between those organic electroluminescent devices and this colored filter; Perhaps, this ash stratum is positioned on this colored filter, and be positioned at this transparency carrier and this colored filter between; Also or, this ash stratum is positioned on this colored filter, and and is positioned on this transparency carrier.
For reaching above-mentioned purpose, described organic electroluminescent device is the white light organic electroluminescence element.
For reaching above-mentioned purpose, described grey stratum is photonasty material constituent.
The beneficial effect that the utility model produces is as follows: can effectively eliminate reverberation that environment light source produces.
Description of drawings
Fig. 1 is the first example structure schematic diagram of display of organic electroluminescence in the utility model.
Fig. 2 is the second example structure schematic diagram of display of organic electroluminescence in the utility model.
Fig. 3 is the 3rd example structure schematic diagram of display of organic electroluminescence in the utility model.
Fig. 4 is the 4th example structure schematic diagram of display of organic electroluminescence in the utility model.
The figure number explanation:
Organic electroluminescent device 20
Ash stratum 50.
Embodiment
Shown in the first example structure schematic diagram that Fig. 1 is the utility model display of organic electroluminescence, display of organic electroluminescence of the present utility model mainly has the substrate of driving element, it is active substrate 10 in the present embodiment, formed by substrate and plurality of films transistor (not shown), wherein substrate can be glass substrate, semiconductor substrate or plastic base.Have a plurality of corresponding conductive junction point (not shown) on the thin-film transistor, can form electric connection with the upper surface of active substrate.Though present embodiment is that organic electroluminescent device is arranged on the active substrate, also the organic electroluminescent device of present embodiment can be arranged on the passive type substrate yet be familiar with this skill personage.
On this active substrate 10 and be provided with a plurality of organic electroluminescent devices 20, in the present embodiment, this organic electroluminescent device 20 is the white light organic electroluminescence element, each organic electroluminescent device 20 comprises bottom electrode (not shown), organic electro luminescent layer (not shown) and top electrode (not shown) at least, electrically connect with corresponding thin-film transistor 20 by bottom electrode, wherein the material of organic electro luminescent layer can be little molecule or high molecular fluorescence or phosphor material.Then be provided with colored filter 30 on those organic electroluminescent devices 20, reaching full-color effect, on this colored filter 30 and be provided with a transparency carrier 40.
Focusing on of this case: these colored filter 30 at least one sides are provided with grey stratum 50, among the embodiment as shown in the figure, this ash stratum 50 is positioned at the following of this colored filter 30, and be positioned at those organic electroluminescent devices 20 and this colored filter 30 between, this ash stratum 50 is that photonasty material constituent is made.Wherein, cie color coordinate figure x=0.299-0.319, y=0.313-0.333, the Y=59%-73% of this ash stratum; Perhaps the cie color coordinate figure is x=0.278-0.298, y=0.283-0.303, Y=59%-73%.
After external light source enters grey stratum 50, can effectively eliminate the reverberation that environment light source produces, reduce the reflectivity of display of organic electroluminescence and improve contrast.By some embodiment of the utility model, the reflectivity of display of organic electroluminescence can be minimized, and is about between 30% ~ 40%.
Moreover shown in second embodiment of Fig. 2, this ash stratum 50 also can be positioned on this colored filter 30, and between this transparency carrier 40 and this colored filter 30; Also or, shown in the 3rd embodiment of Fig. 3, this ash stratum 50 is positioned on this colored filter 30, and and be positioned on this transparency carrier 40; Also or, this display of organic electroluminescence is provided with plural grey stratum 50, shown in the 4th embodiment of Fig. 4, between those organic electroluminescent devices 20 and this colored filter 30, and be provided with grey stratum 50 (also can be positioned at relatively on this transparency carrier certainly) on this colored filter 30 simultaneously, all can reach the elimination environment light source and produce catoptrical effect.
Claims (16)
1. display of organic electroluminescence, this display of organic electroluminescence mainly has the substrate of driving element, on this substrate and be provided with a plurality of organic electroluminescent devices, and electrically connect with these a plurality of driving elements, then be provided with colored filter on those organic electroluminescent devices, on this colored filter and be provided with a transparency carrier; It is characterized in that:
At least one side of this colored filter is provided with grey stratum.
2. display of organic electroluminescence as claimed in claim 1 is characterized in that, this ash stratum is positioned under this colored filter, and between those organic electroluminescent devices and this colored filter.
3. display of organic electroluminescence as claimed in claim 1 or 2 is characterized in that, this organic electroluminescent device is the white light organic electroluminescence element.
4. display of organic electroluminescence as claimed in claim 1 or 2 is characterized in that, this ash stratum is photonasty material constituent.
5. display of organic electroluminescence as claimed in claim 4 is characterized in that, the cie color coordinate figure x=0.299-0.319 of this ash stratum, y=0.313-0.333, Y=59%-73%.
6. display of organic electroluminescence as claimed in claim 4 is characterized in that, the cie color coordinate figure x=0.278-0.298 of this ash stratum, y=0.283-0.303, Y=59%-73%.
7. display of organic electroluminescence as claimed in claim 1 or 2 is characterized in that, this ash stratum is positioned on this colored filter, and between this transparency carrier and this colored filter.
8. display of organic electroluminescence as claimed in claim 7 is characterized in that, this organic electroluminescent device is the white light organic electroluminescence element.
9. display of organic electroluminescence as claimed in claim 7 is characterized in that, this ash stratum is photonasty material constituent.
10. display of organic electroluminescence as claimed in claim 9 is characterized in that, the cie color coordinate figure x=0.299-0.319 of this ash stratum, y=0.313-0.333, Y=59%-73%.
11. display of organic electroluminescence as claimed in claim 9 is characterized in that, the cie color coordinate figure x=0.278-0.298 of this ash stratum, y=0.283-0.303, Y=59%-73%.
12. display of organic electroluminescence as claimed in claim 1 or 2 is characterized in that, this ash stratum is positioned on this colored filter, and and is positioned on this transparency carrier.
13. display of organic electroluminescence as claimed in claim 12 is characterized in that, this organic electroluminescent device is the white light organic electroluminescence element.
14. display of organic electroluminescence as claimed in claim 12 is characterized in that, this ash stratum is photonasty material constituent.
15. display of organic electroluminescence as claimed in claim 14 is characterized in that, the cie color coordinate figure x=0.299-0.319 of this ash stratum, y=0.313-0.333, Y=59%-73%.
16. display of organic electroluminescence as claimed in claim 14 is characterized in that, the cie color coordinate figure x=0.278-0.298 of this ash stratum, y=0.283-0.303, Y=59%-73%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320248765 CN203225251U (en) | 2013-05-09 | 2013-05-09 | Organic electroluminescent display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320248765 CN203225251U (en) | 2013-05-09 | 2013-05-09 | Organic electroluminescent display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203225251U true CN203225251U (en) | 2013-10-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320248765 Expired - Lifetime CN203225251U (en) | 2013-05-09 | 2013-05-09 | Organic electroluminescent display |
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| Country | Link |
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| CN (1) | CN203225251U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104252100A (en) * | 2013-06-26 | 2014-12-31 | 新应材股份有限公司 | Photosensitive hardening composition and application thereof |
-
2013
- 2013-05-09 CN CN 201320248765 patent/CN203225251U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104252100A (en) * | 2013-06-26 | 2014-12-31 | 新应材股份有限公司 | Photosensitive hardening composition and application thereof |
| CN104252100B (en) * | 2013-06-26 | 2019-06-18 | 新应材股份有限公司 | Photocurable constituent and its application |
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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: 20131002 |
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| CX01 | Expiry of patent term |