CN103681766B - A kind of Organic Light Emitting Diode and display floater and display device - Google Patents
A kind of Organic Light Emitting Diode and display floater and display device Download PDFInfo
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Abstract
The present invention provides a kind of Organic Light Emitting Diode and display floater and display device.Described Organic Light Emitting Diode, including luminous body structure, described Organic Light Emitting Diode also includes: electrochromic layer, is arranged on below described luminous body structure；And first pixel electrode layer, it is arranged on below described electrochromic layer.The white organic LED device architecture that the present invention provides, when pixel electrode is powered, when i.e. needing white pixel luminescence, the transparent state of electrochromic layer；When white pixel is in non-illuminating state, and i.e. during pixel electrode no signal, electrochromic layer is coloured state.Using the bottom emitting organic light emitting diode device structure of the present invention, the colour gamut that negative electrode reflection nature light can be avoided to cause reduces and contrast reduces, and gives full play to the advantage of RGBW pattern, improves display effect.
Description
Technical field
The present invention relates to display field, particularly relate to a kind of Organic Light Emitting Diode and display floater and display
Device.
Background technology
Organic Light Emitting Diode OLED display rely on its colour gamut ultra-thin, high, high-contrast, wide viewing angle,
The advantages such as response is fast, have become as the mainstream scheme of display of future generation.By RGBW(red, green, blue and white) mould
Formula is applied to OLED and shows, can improve brightness and improve OLED product display life.RGBW mould
Formula refers to traditional RGB (RGB) three blended-light is formed image, changes into red, green, blue and white (RGBW)
Four blended-lights form image.RGBW scheme can be effectively improved brightness, shows all right for OLED
Realize improving the effect of display life of product.
But so-called W(is white) pixel, usually transparent resin composition, the light that white light OLED sends
It is directed through transparent resin to be received by human eye.This structure has a problem that, i.e. naturally light can be incident to
Device inside, is received by human eye, such as Fig. 1 institute through transparent resin layer after being reflected by negative electrode (Cathode)
Showing, the result so caused is, when white pixel does not has signal (dark-state), due to negative electrode reflection environment
Natural light, makes white pixel present certain brightness, therefore can reduce display colour gamut and contrast, impact display
Effect.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of Organic Light Emitting Diode and display floater and shows
Showing device.
A kind of Organic Light Emitting Diode, including luminous body structure, described Organic Light Emitting Diode also includes:
Electrochromic layer, is arranged on below described luminous body structure；And
First pixel electrode layer, is arranged on below described electrochromic layer.
Described luminous body structure includes: the second pixel electrode layer and be successively set on described second pixel electricity
Hole injection layer, organic luminous layer, electron injecting layer and metal electrode layer on the layer of pole.
It is additionally provided with hole transmission layer between described hole injection layer and described organic luminous layer.
It is additionally provided with electron transfer layer between described organic luminous layer and described electron injecting layer.
Described electrochromic layer is made up of organic electrochromic material.
Described organic electrochromic material is polythiophene class, polythiophene-based derivatives, purple sieve essence class, four sulfur richnesses
Watt alkene, metallo phthalocyanine or polyaniline compound.
Described electrochromic layer is made up of inorganic electrochromic material.
Described inorganic electrochromic material is WO3, MoO3 or V2O5.
A kind of organic LED display panel, including described Organic Light Emitting Diode OLED.
A kind of display device, including described organic LED display panel.
Having the beneficial effect that of the technique scheme of the present invention:
The white organic LED device architecture that the present invention provides, when pixel electrode is powered, i.e. needs
During white pixel luminescence, the transparent state of electrochromic layer；When white pixel is in non-illuminating state, i.e. as
During element electrode no signal, electrochromic layer is coloured state.Use the bottom emitting Organic Light Emitting Diode of the present invention
Device architecture, the colour gamut that negative electrode reflection nature light can be avoided to cause reduces and contrast reduces, and gives full play to
The advantage of RGBW pattern, improves display effect.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of Organic Light Emitting Diode OLED of the present invention；
Fig. 2 is that the structure of another embodiment of a kind of Organic Light Emitting Diode OLED of the present invention is shown
It is intended to.
Detailed description of the invention
For making the technical problem to be solved in the present invention, technical scheme and advantage clearer, below in conjunction with attached
Figure and specific embodiment are described in detail.
As it is shown in figure 1, be a kind of Organic Light Emitting Diode OLED of the present invention, tie including luminous body
Structure 11, described Organic Light Emitting Diode also includes:
Electrochromic layer 22, is arranged on below described luminous body structure 11；And
First pixel electrode layer 33, is arranged on below described electrochromic layer 22.
Optionally, as in figure 2 it is shown, described luminous body structure includes: the second pixel electrode layer 111；Successively
It is arranged on the hole injection layer 112 on described second pixel electrode layer, organic luminous layer 113, electronics injection
Layer 114 and metal electrode layer 115.
Optionally, it is additionally provided with hole between described hole injection layer 112 and described organic luminous layer 113 to pass
Defeated layer 116.
Optionally, it is additionally provided with electronics between described organic luminous layer 113 and described electron injecting layer 114 to pass
Defeated layer 117.
Wherein, described electrochromic layer 22 is made up of organic electrochromic material.Described organic electrochromic
Material can be polythiophene class, polythiophene-based derivatives, purple sieve essence class, tetrathiafulvalene, metal phthalocyanine class
Compound or polyaniline compound.
Wherein, polythiophene class and polythiophene-based derivatives are for example: poly-three thiophene (PTT)；Purple sieve essence class example
As for 1,1'-disubstituted-4,4 ' bipyridyl；Tetrathiafulvalene is for example: four thiophene ethylene-rich；Metal phthalocyanine
Compounds is for example: single, double, triple core phthalocyanine cobalt sulfonate, tetracarboxylic tetracarboxylic metal phthalocyanine.
Optionally, described electrochromic layer is made up of inorganic electrochromic material.Described inorganic electrochromic material
Material can be WO3, MoO3 or V2O5.
Optionally, described electrochromic layer is made up of organic/inorganic compound electrochromic material.
The bottom emitting white light OLED device architecture that the present invention provides, when pixel electrode is powered, i.e. needs
During white pixel luminescence, the transparent state of electrochromic layer；When white pixel is in non-illuminating state, i.e. as
During element electrode no signal, electrochromic layer is coloured state.Use the bottom emitting OLED knot of the present invention
Structure, the colour gamut that negative electrode reflection nature light can be avoided to cause reduces and contrast reduces, and improves RGBW mould
The colour gamut of formula white light OLED product and contrast, give full play to the advantage of RGBW pattern, it is therefore prevented that anti-
Light, improves product display effect.
The present invention also provides for a kind of organic LED display panel, including described Organic Light Emitting Diode
OLED。
The present invention also provides for a kind of display device, including described organic LED display panel.
The above is the preferred embodiment of the present invention, it is noted that for the common skill of the art
For art personnel, on the premise of without departing from principle of the present invention, it is also possible to make some improvements and modifications,
These improvements and modifications also should be regarded as protection scope of the present invention.
Claims (9)
1. a bottom emitting white organic LED, this Organic Light Emitting Diode is applied to white pixel,
Including luminous body structure, it is characterised in that described Organic Light Emitting Diode also includes:
Electrochromic layer, is arranged on below described luminous body structure；And
First pixel electrode layer, is arranged on below described electrochromic layer；
Described luminous body structure includes: the second pixel electrode layer and be successively set on described second pixel electricity
Hole injection layer, organic luminous layer, electron injecting layer and metal electrode layer on the layer of pole；
When pixel electrode is powered, white pixel is luminous, the transparent state of electrochromic layer；Work as pixel electrode
During no signal, white pixel is in non-illuminating state, and electrochromic layer is coloured state, it is to avoid metal electrode layer
The colour gamut that the natural light of reflection causes reduces and contrast reduces.
Organic Light Emitting Diode the most according to claim 1, it is characterised in that described hole is injected
It is additionally provided with hole transmission layer between layer and described organic luminous layer.
Organic Light Emitting Diode the most according to claim 1 and 2, it is characterised in that described organic
It is additionally provided with electron transfer layer between luminescent layer and described electron injecting layer.
Organic Light Emitting Diode the most according to claim 1, it is characterised in that described electrochromism
Layer is made up of organic electrochromic material.
Organic Light Emitting Diode the most according to claim 4, it is characterised in that described organic electroluminescence
Off-color material is polythiophene class, polythiophene-based derivatives, purple sieve essence class, tetrathiafulvalene, metal phthalocyanine class
Compound or polyaniline compound.
Organic Light Emitting Diode the most according to claim 1, it is characterised in that described electrochromism
Layer is made up of inorganic electrochromic material.
Organic Light Emitting Diode the most according to claim 6, it is characterised in that described inorganic electroluminescence
Off-color material is WO3, MoO3 or V2O5.
8. an organic LED display panel, arbitrary described organic including claim 1-7
Optical diode.
9. a display device, including the organic LED display panel described in claim 8.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310684204.7A CN103681766B (en) | 2013-12-13 | 2013-12-13 | A kind of Organic Light Emitting Diode and display floater and display device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310684204.7A CN103681766B (en) | 2013-12-13 | 2013-12-13 | A kind of Organic Light Emitting Diode and display floater and display device |
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| CN103681766A CN103681766A (en) | 2014-03-26 |
| CN103681766B true CN103681766B (en) | 2016-08-31 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104952908B (en) * | 2015-07-01 | 2018-12-21 | 上海和辉光电有限公司 | A kind of OLED display panel and preparation method thereof |
| CN105467712A (en) * | 2016-01-08 | 2016-04-06 | 京东方科技集团股份有限公司 | Display substrate and display device |
| CN106684261B (en) * | 2017-01-22 | 2019-01-18 | 昆山工研院新型平板显示技术中心有限公司 | Transparency adjusts unit and display device |
| CN108417179B (en) * | 2018-05-16 | 2023-12-05 | 京东方科技集团股份有限公司 | Light emitting device and display apparatus |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102447076A (en) * | 2011-11-18 | 2012-05-09 | 友达光电股份有限公司 | Organic light emitting device |
| CN102456805A (en) * | 2010-10-22 | 2012-05-16 | 展晶科技(深圳)有限公司 | Light-emitting diode |
| CN102655118A (en) * | 2012-01-10 | 2012-09-05 | 京东方科技集团股份有限公司 | AMOLED (active matrix/organic light-emitting diode) device and production method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20120061396A (en) * | 2010-12-03 | 2012-06-13 | 삼성모바일디스플레이주식회사 | Organic light emitting diode display |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102456805A (en) * | 2010-10-22 | 2012-05-16 | 展晶科技(深圳)有限公司 | Light-emitting diode |
| CN102447076A (en) * | 2011-11-18 | 2012-05-09 | 友达光电股份有限公司 | Organic light emitting device |
| CN102655118A (en) * | 2012-01-10 | 2012-09-05 | 京东方科技集团股份有限公司 | AMOLED (active matrix/organic light-emitting diode) device and production method |
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