CN101170125A - High color saturation full color organic EL display device and its making method - Google Patents
High color saturation full color organic EL display device and its making method Download PDFInfo
- Publication number
- CN101170125A CN101170125A CNA2007101711072A CN200710171107A CN101170125A CN 101170125 A CN101170125 A CN 101170125A CN A2007101711072 A CNA2007101711072 A CN A2007101711072A CN 200710171107 A CN200710171107 A CN 200710171107A CN 101170125 A CN101170125 A CN 101170125A
- Authority
- CN
- China
- Prior art keywords
- layer
- organic
- display device
- green
- red
- 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
Links
Images
Landscapes
- Electroluminescent Light Sources (AREA)
Abstract
A high color saturation full color organic electroluminescent display device and a manufacture method relates to organic light emitting diode (OLED) display device technical field and provides the high color saturation full color organic electroluminescent display device and the manufacture method with color saturation improvement, low power consumption and high brightness. The display device includes a color filter with a red, a green and a blue photoresists on a non-light tight base board; a transparent electrode (anode), which is arranged on the upper surface of the color filter; an organic lighting unit layer, which is provided with a red, a green and a blue organic lighting units; wherein, the red, the green and the blue organic lighting units are arranged on the transparent electrode on the position perpendicular with the red, the green and the blue photoresists in turn; and a metal electrode, which is arranged on the three color organic lighting units. The invention can improve the color saturation of the organic electroluminescent display device and decrease the power consumption at the same time.
Description
Technical field
The present invention relates to Organic Light Emitting Diode (OLED) display technology, particularly relate to a kind of technology of full color organic electroluminescence display device and method of manufacturing same and preparation method thereof of high color saturation.
Background technology
Organic light emitting diode display is a kind of self-emitting display, has characteristics such as wide visual angle, high response speed, wide serviceability temperature scope, has been widely used in the demonstration of mobile phone screen, MP3 and MP4 screen.For the full-color light-emitting that obtains high brightness, low-power consumption, high color saturation shows that people have carried out continuous innovation and effort from material, device architecture and the manufacture method of making device.
At present, it is as follows to reach the modal two kinds of methods of full-colorization function:
First kind is to utilize the aligning of high-precision shade (shadow mask) 15 (as Fig. 1) by realization of high accuracy alignment system and substrate (11), shade is covered wherein two picture elements, the organic material (16) of one group of color in evaporation red, green, blue three looks on transparency electrode, mobile then shade, the organic material of the other two kinds of colors of evaporation (17,18) successively.The color saturation of the full color display device that this method realizes is often determined by the colorimetric purity of red, green, blue three colour organic luminous materials itself, and present business-like luminous organic material colorimetric purity is high not enough, make the color saturation of the device that this method makes lower, can not finely must reproduce the original color of things.
As shown in Figure 2, second kind is that colored filter (CF) by collocation operation technique maturation (generally comprises glass substrate 201, red 203, green 204, blue 205 3 coloured light resistance, black matrix" (black matrix) 202 and planarization layer (overcoat) 206), be used for intercepting the water oxygen that discharges in the filter through forming a passivation layer (passivation layer) 207 after the special processing, preparation white organic light emitting assembly 211 on the transparency electrode that is formed on the passivation layer, by the light color filtering of colored filter dialogue color device, realize full-color display effect.Though this preparation method does not need high-precision shade, required precision to alignment system does not have first kind of production method height yet, the device color saturation of preparation also is better than the device that first kind of mode prepares, but white light can be cut down 2/3rds by its light intensity behind the colored filter, so greatly reduce the brightness of display device, if realize identical brightness, can increase the power consumption of display device greatly.
Summary of the invention
At the defective that exists in the above-mentioned prior art, technical problem to be solved by this invention provides a kind of color saturation that can improve, high color saturation full color organic EL display device of low-power consumption, high brightness and preparation method thereof.
In order to solve the problems of the technologies described above, a kind of high color saturation full color organic EL display device provided by the present invention comprises a colored filter, and its transparent substrates is provided with the photoresistance of three kinds of colors of red, green, blue; One transparent (sun) electrode is arranged at the upper surface of described colored filter; It is characterized in that, also comprise an organic light-emitting units layer, be provided with the organic light-emitting units of three kinds of colors of red, green, blue, wherein, red organic light-emitting units is located on the transparency electrode of vertical (extension) position of red photoresistance, green organic light-emitting units is located on the transparency electrode of vertical (extension) position of green photoresistance, and blue organic light-emitting units is located on the transparency electrode of vertical (extension) position of blue photoresistance; One metal electrode is established (formation) on described three colour organic luminous unit.
Further, the structure of described green organic light-emitting units, blue organic light-emitting units, red organic light-emitting units comprises a hole injection layer, a hole transmission layer, a luminescent layer, an electron transfer layer, an electron injecting layer from bottom to top at least; Wherein hole injection layer, hole transmission layer, electron transfer layer, electron injecting layer are public organic function layer, use the shade evaporation of a big frame to form.
Further, described colored filter comprises a planarization layer, a black matrix", a passivation layer at least.
Further, described transparent (sun) electrode (through wet method) etching forms figure, and be formed with insulating barrier and cathode insulated column on transparent (sun) electrode.
Further, described transparency electrode is tin indium oxide or indium zinc oxide.
Further, described metal electrode is aluminium or magnesium silver alloy.
In order to solve the problems of the technologies described above, the manufacture method of a kind of high color saturation full color organic EL display device provided by the present invention is characterized in that, key step comprises:
On colored filter, form the transparency electrode figure;
On transparency electrode, form insulating barrier;
On insulating barrier, form cathode insulated column;
The evaporation hole injection layer;
The evaporation hole transmission layer;
Shade is positioned over colored filter photoresistance vertical extent position, and opening part is aimed at the resistance of first coloured light, the evaporation first look luminescent layer;
Parallel mobile shade is aimed at the resistance of second coloured light, the evaporation second look luminescent layer with opening part;
Parallel mobile shade is aimed at the resistance of the 3rd coloured light, evaporation three-colour light-emitting layer with opening part;
The evaporation electron transfer layer;
The evaporation electron injecting layer;
The evaporation metal electrode;
In inert gas atmosphere, use the bonnet that posts drier that above-mentioned part is encapsulated in confined space.
Further, described first, second, third look is respectively green, blue, red.
Utilize high color saturation full color organic EL display device provided by the invention and preparation method thereof, owing to adopt colored filter that is provided with three kinds of color photoresistances of red, green, blue and the luminous structure of organic light-emitting units that is provided with three kinds of colors of red, green, blue simultaneously, improved the light utilization efficiency of organic light-emitting units, reduced of the loss of each photoresistance to other color of light, reduce power consumption, improved the color saturation and the brightness of organic electroluminescence display device and method of manufacturing same.
Description of drawings
Fig. 1 red, green, blue three look picture elements of the prior art are also put method production method schematic diagram;
Fig. 2 colored filter of the prior art adds white light method production method schematic diagram;
The colored filter of Fig. 3 embodiment of the invention adds the device architecture schematic diagram that the red, green, blue three-color process is made;
The schematic diagram of the green light emitting layer preparation of Fig. 4 (a) embodiment of the invention;
The schematic diagram of the red light emitting layer preparation of Fig. 4 (b) embodiment of the invention;
The schematic diagram of the blue light-emitting layer preparation of Fig. 4 (c) embodiment of the invention.
Accompanying drawing icon: substrate 11, transparency electrode 12, insulating barrier 13, cathode insulated column 14, shade 15, red assembly 16, green color component 17, blue assembly 18, substrate 201, black matrix" 202, red photoresistance 203, green photoresistance 204, blue photoresistance 205, planarization layer 206, passivation layer 207, transparency electrode 208, insulating barrier 209, cathode insulated column 210, white luminous assembly 211, substrate 301, black matrix" 302, red photoresistance 303, green photoresistance 304, blue photoresistance 305, planarization layer 306, passivation layer 307, transparency electrode 308, insulating barrier 309, cathode insulated column 310, emitting red light unit 311, green emitting unit 312, blue-light-emitting unit 313, metallic cathode 314, drier 315, bonnet 316, substrate 401, black matrix" 402, red photoresistance 403, green photoresistance 404, blue photoresistance 405, planarization layer 406, passivation layer 407, transparency electrode 408, insulating barrier 409, cathode insulated column 410, shade 411, green light emitting layer 412, red light emitting layer 413, blue light-emitting layer 414.
Embodiment
Below in conjunction with description of drawings embodiments of the invention are described in further detail, but present embodiment is not limited to the present invention, every employing analog structure of the present invention and similar variation thereof all should be listed protection scope of the present invention in.
A kind of high color saturation full color organic EL display device that the embodiment of the invention provided and preparation method thereof, in order to solve the shortcoming of above-mentioned two kinds of color organic light emitting display devices, the present invention has designed a kind of all colour organic luminous display device, by evaporation on the colored filter with it on the organic luminescent assembly of the corresponding color of photoresistance, improve photochromicly the time, obtain the color organic electroluminescence display unit of high color saturation through the colored filter transmitance.
As shown in Figure 3, high color saturation full color organic EL display device provided by the invention, comprise: a colored filter, be provided with substrate 301, matrix layer, planarization layer 306, passivation layer 307 from bottom to top, the matrix layer on the transparent substrates is provided with the photoresistance 303,304,305 and the black matrix" 302 of three kinds of colors of red, green, blue; One transparent (sun) electrode 308 is arranged at the upper surface of described colored filter; Described transparent (sun) electrode is tin indium oxide or indium zinc oxide; Transparent (sun) electrode 308 forms certain figure through wet etching, then forms insulating barrier 309 and cathode insulated column 310 on transparent (sun) electrode 308; One organic light-emitting units layer, be provided with the organic light-emitting units of three kinds of colors of red, green, blue, wherein, red organic light-emitting units 311 is formed on the transparency electrode of vertical extent position of red photoresistance (photoresist) 303, green organic light-emitting units 312 is formed on the transparency electrode of vertical extent position of green photoresistance (photoresist) 304, and blue organic light-emitting units 313 is formed on the transparency electrode of vertical extent position of blue photoresistance (photoresist) 305; Promptly the green organic light-emitting units 312 of preparation on green photoresistance 304 prepares blue organic light-emitting units 313 on the blue photoresistance 305, the red organic light-emitting units 311 of preparation on the red photoresistance 303.The structure of wherein green organic light-emitting units 312, blue organic light-emitting units 313, red organic light-emitting units 311 is followed successively by from bottom to top: hole injection layer, hole transmission layer, luminescent layer, electron transfer layer, electron injecting layer, wherein hole injection layer, hole transmission layer, electron transfer layer, electron injecting layer are public organic function layer, use the shade evaporation of a big frame to form; One metal electrode is established (formation) on described three colour organic luminous unit, i.e. evaporation metal negative electrode on organic layer; Described metal electrode is aluminium or magnesium silver alloy; Last in inert gas atmosphere the bonnet 316 by posting drier 315 with device sealing.
Shown in Fig. 4 (a), Fig. 4 (b), Fig. 4 (c), the present invention also provides a kind of manufacture method of composite colour organic electroluminescent display device of high color saturation, and key step comprises:
On colored filter, form the transparency electrode figure;
On transparency electrode, form insulating barrier;
On insulating barrier, form cathode insulated column;
The evaporation hole injection layer;
The evaporation hole transmission layer;
The evaporation luminescent layer, wherein, luminescent layer in red, green, blue three color elements is realized by mode as shown in Figure 4: at first shade 411 is positioned over colored filter photoresistance vertical extent position, opening part is aimed at green photoresistance 404 (as Fig. 4 (a)) (alignment work realizes by high-precision alignment system) evaporation green light emitting layer 412; Parallel mobile shade 411 is aimed at blue photoresistance 403 (as Fig. 4 (b)), evaporation blue light-emitting layer 413 with opening part; Parallel mobile shade 411 is aimed at red photoresistance 405 (as Fig. 4 (c)), evaporation red light emitting layer 414 with opening part;
The evaporation electron transfer layer;
The evaporation electron injecting layer;
The evaporation metal electrode;
In inert gas atmosphere, use the bonnet that posts drier that above-mentioned part is encapsulated in confined space.
Claims (8)
1. high color saturation full color organic EL display device comprises:
One colored filter, its transparent substrates is provided with the photoresistance of three kinds of colors of red, green, blue;
One transparent (sun) electrode is arranged at the upper surface of described colored filter;
It is characterized in that, also comprise an organic light-emitting units layer, be provided with the organic light-emitting units of three kinds of colors of red, green, blue, wherein, red organic light-emitting units is located on the transparency electrode of red photoresistance upright position, green organic light-emitting units is located on the transparency electrode of green photoresistance upright position, and blue organic light-emitting units is located on the transparency electrode of blue photoresistance upright position;
One metal electrode is located on the described three colour organic luminous unit.
2. high color saturation full color organic EL display device according to claim 1, it is characterized in that the structure of described green organic light-emitting units, blue organic light-emitting units, red organic light-emitting units comprises a hole injection layer, a hole transmission layer, a luminescent layer, an electron transfer layer, an electron injecting layer from bottom to top at least; Wherein hole injection layer, hole transmission layer, electron transfer layer, electron injecting layer are public organic function layer.
3. high color saturation full color organic EL display device according to claim 1 is characterized in that, described colored filter comprises a planarization layer, a black matrix", a passivation layer at least.
4. high color saturation full color organic EL display device according to claim 1 is characterized in that, described transparent (sun) electrode forms figure by etching, and is formed with insulating barrier and cathode insulated column on transparent (sun) electrode.
5. high color saturation full color organic EL display device according to claim 1 is characterized in that, described transparent (sun) electrode is tin indium oxide or indium zinc oxide.
6. high color saturation full color organic EL display device according to claim 1 is characterized in that, described metal electrode is aluminium or magnesium silver alloy.
7. the manufacture method of the described high color saturation full color organic EL display device of claim 1 is characterized in that, key step comprises:
On colored filter, form the transparency electrode figure;
On transparency electrode, form insulating barrier;
On insulating barrier, form cathode insulated column;
The evaporation hole injection layer;
The evaporation hole transmission layer;
Shade is positioned over colored filter photoresistance vertical extent position, and opening part is aimed at the resistance of first coloured light, the evaporation first look luminescent layer;
Parallel mobile shade is aimed at the resistance of second coloured light, the evaporation second look luminescent layer with opening part;
Parallel mobile shade is aimed at the resistance of the 3rd coloured light, evaporation three-colour light-emitting layer with opening part;
The evaporation electron transfer layer;
The evaporation electron injecting layer;
The evaporation metal electrode;
In inert gas atmosphere, use the bonnet that posts drier that above-mentioned part is encapsulated in confined space.
8. the manufacture method of composite colour organic electroluminescent display device according to claim 7 is characterized in that, it is green, blue, red that described first, second, third look is respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101711072A CN101170125A (en) | 2007-11-28 | 2007-11-28 | High color saturation full color organic EL display device and its making method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101711072A CN101170125A (en) | 2007-11-28 | 2007-11-28 | High color saturation full color organic EL display device and its making method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101170125A true CN101170125A (en) | 2008-04-30 |
Family
ID=39390657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101711072A Pending CN101170125A (en) | 2007-11-28 | 2007-11-28 | High color saturation full color organic EL display device and its making method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101170125A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102916035A (en) * | 2012-08-28 | 2013-02-06 | 李崇 | Large-size full-color OLED (Organic Light-Emitting Diode) display |
| CN103681733A (en) * | 2012-08-30 | 2014-03-26 | 财团法人工业技术研究院 | Flexible display and manufacturing method thereof |
| US9853243B2 (en) | 2013-07-05 | 2017-12-26 | Industrial Technology Research Institute | Flexible display and method for fabricating the same |
| CN108198839A (en) * | 2017-12-28 | 2018-06-22 | 深圳市华星光电半导体显示技术有限公司 | Mirror face display equipment and preparation method thereof |
-
2007
- 2007-11-28 CN CNA2007101711072A patent/CN101170125A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102916035A (en) * | 2012-08-28 | 2013-02-06 | 李崇 | Large-size full-color OLED (Organic Light-Emitting Diode) display |
| CN102916035B (en) * | 2012-08-28 | 2015-04-22 | 江苏三月光电科技有限公司 | Large-size full-color OLED (Organic Light-Emitting Diode) display |
| CN103681733A (en) * | 2012-08-30 | 2014-03-26 | 财团法人工业技术研究院 | Flexible display and manufacturing method thereof |
| CN103681733B (en) * | 2012-08-30 | 2016-09-14 | 财团法人工业技术研究院 | Flexible display and manufacturing method thereof |
| TWI596751B (en) * | 2012-08-30 | 2017-08-21 | 財團法人工業技術研究院 | Flexible display and method for fabricating the same |
| US9853243B2 (en) | 2013-07-05 | 2017-12-26 | Industrial Technology Research Institute | Flexible display and method for fabricating the same |
| CN108198839A (en) * | 2017-12-28 | 2018-06-22 | 深圳市华星光电半导体显示技术有限公司 | Mirror face display equipment and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110048005B (en) | OLED display device and preparation method thereof | |
| WO2019095452A1 (en) | Oled display and manufacturing method therefor | |
| CN100565970C (en) | Organnic electroluminescent device manufacture method and Organnic electroluminescent device | |
| US7605533B2 (en) | Organic electro-luminescence display | |
| CN104103672B (en) | OLED (Organic Light Emitting Diode) unit and fabrication method thereof, OLED display panel and OLED display apparatus | |
| CN107359268B (en) | Transparent OLED display panel and preparation method thereof | |
| CN109728065B (en) | Display substrate, preparation method thereof and display device | |
| WO2020252899A1 (en) | Oled display panel and preparation method | |
| CN104900684A (en) | Display substrate, manufacturing method therefor, and display device | |
| CN102623644A (en) | Display panel and manufacturing method thereof | |
| CN105185815A (en) | OLED display device and electronic device | |
| CN100521849C (en) | Double face display and making method thereof | |
| CN104681736A (en) | OLED (Organic Light Emitting Diode) unit, manufacturing method of OLED unit and display panel | |
| CN108365115B (en) | Electroluminescent device, display panel and preparation method thereof | |
| WO2019001362A1 (en) | Display substrate and manufacturing method thereof, display panel and display device | |
| CN104241328A (en) | PMOLED (passive matrix organic light emitting diode) array substrate as well as manufacturing method, display device and mask plate thereof | |
| CN101170125A (en) | High color saturation full color organic EL display device and its making method | |
| CN106098954B (en) | A kind of organic electroluminescence device and preparation method thereof, display device | |
| CN110518035A (en) | Organic LED display panel | |
| CN103123956B (en) | Organic light emitting display panel and manufacturing method thereof | |
| US20210020712A1 (en) | Organic light-emitting diode display panel and method of manufacturing same, and display device | |
| US10923673B2 (en) | Organic light emitting panel, manufacturing method thereof, and organic light emitting device | |
| CN109873013A (en) | A kind of display panel, display device and its manufacture craft | |
| CN102800817A (en) | Fully colored organic electroluminescent device and manufacturing method | |
| CN106252381A (en) | AMOLED display floater and display device thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080430 |