CN106158907B - OLED display device - Google Patents
OLED display device Download PDFInfo
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- CN106158907B CN106158907B CN201510202987.XA CN201510202987A CN106158907B CN 106158907 B CN106158907 B CN 106158907B CN 201510202987 A CN201510202987 A CN 201510202987A CN 106158907 B CN106158907 B CN 106158907B
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Abstract
The present invention provides a kind of OLED display devices, comprising: red sub-pixel has the first white-light emitting layer and feux rouges filter coating, and feux rouges filter coating is located on the light direction of the first white-light emitting layer；Green sub-pixels have green light emitting layer；Blue subpixels, have the second white-light emitting layer and blue light filter coating, and blue light filter coating is located on the light direction of the second white-light emitting layer.OLED display device of the invention, red sub-pixel is set as being made of white-light emitting layer and feux rouges filter coating, blue subpixels are set as being made of white-light emitting layer and blue filter film, without the use of the luminous organic material of feux rouges and blue light, avoid leads to luminous efficiency and service life lower problem using the luminous organic material of feux rouges and blue light in the prior art, and the stability of OLED display device and service life can be made all to be significantly improved.In addition, the quantity of the filter coating of setting is also reduced compared with the prior art, cost has been saved.
Description
Technical field
The present invention relates to organic elctroluminescent device production fields, refer in particular to a kind of OLED display device.
Background technique
Flat panel display device has many merits such as thin fuselage, power saving, radiationless, is widely used.It is existing
Flat panel display device mainly includes that liquid crystal display device (Liquid Crystal Display, LCD) and organic electroluminescent are aobvious
Show device (Organic Light Emitting Display, OLED).Organic electroluminescence device is spontaneous due to being provided simultaneously with
Light, is not required to that backlight, contrast are high, thickness is thin, visual angle is wide, reaction speed is fast, can be used for flexibility panel, use temperature range
Extensively, construction and the excellent characteristics such as processing procedure is simpler, it is considered to be the follow-on emerging application technology of flat-panel screens.
Usual OLED display technology realizes that the mode of colored display is broadly divided into two kinds: three primary colors (RGB) independent pixel is sent out
Light and the white luminous mode in conjunction with filter coating.
The each pixel of three primary colors independent pixel luminescence technology has three OLED Light-Emitting Diodes of RGB.Entire pixel is color
The realization of color needs three kinds of OLED luminescent materials.Technical difficulty is bigger on the preparation of material, the stability contorting of color.Currently,
Small organic molecule luminescent material green light excitation purity, luminous efficiency and stability are all fine.But feux rouges and blue light emitting small molecule material
The luminous efficiency of material and service life are lower.The maximum bottleneck that small organic molecule luminescent material faces is red and blue material pure
Degree, efficiency and service life.
The white luminous technology in conjunction with filter coating realizes full-color EL display, and the full color pixel point of this technology only has white
Color light emitting diode.The filter coating of red green blue tricolor, and then shape are coated on the top of three white luminous OLED diodes
It shines at visual three primary colors.This technology relates only to a kind of preparation of white reflector material, but needs using three
Kind filter coating.And for opposite three primary colors independent pixel luminescence technology show, the white luminous technology hardly possible in conjunction with filter coating
It spends and cost is relatively low, but because then losing plus filter coating source efficiency, be up to through light loss caused by color filter film
2/3rds, brightness, contrast, color three important display indexs will all be not so good as three primary colors independent pixel luminescence technology, energy conservation
Degree is also not as good as three primary colors independent pixel luminescence technology.
Summary of the invention
In view of the above problem, it is an object of the invention to propose a kind of OLED display device, in light extraction efficiency, function is reduced
Traditional OLED device is compared in consumption, service life and stability to be all significantly increased.
In order to achieve the above object, the present invention provides a kind of OLED display devices characterized by comprising
Red sub-pixel, has the first white-light emitting layer and feux rouges filter coating, and the feux rouges filter coating is located at described first
On the light direction of white-light emitting layer；
Green sub-pixels have green light emitting layer；
Blue subpixels, have the second white-light emitting layer and blue light filter coating, and the blue light filter coating is located at described second
On the light direction of white-light emitting layer.
Red sub-pixel is set as being made of white-light emitting layer and feux rouges filter coating by OLED display device of the invention,
Blue subpixels are set as being made of white-light emitting layer and blue filter film, without the use of the organic light emission material of feux rouges and blue light
Material, avoid causes luminous efficiency and service life lower to be asked using the luminous organic material of feux rouges and blue light in the prior art
Topic, can make the stability of OLED display device and service life all be significantly improved.In addition, the quantity of the filter coating of setting is compared
It is also reduced in the prior art, has saved cost.
OLED display device of the present invention further improvement lies in that, further include by sealant substrate interconnected and lid
Plate constitutes sealing space, first white-light emitting layer, the green light emitting layer and institute between the substrate and the cover board
The second white-light emitting layer is stated in being set on the substrate in the sealing space, and the feux rouges filter coating is empty in the sealing
Interior to be set to the position for corresponding to first white-light emitting layer on the cover board, the blue light filter coating is empty in the sealing
It is interior to be set to the position for corresponding to second white-light emitting layer on the cover board.
OLED display device of the present invention further improvement lies in that, the red sub-pixel further includes being set to the substrate
On anode layer, hole injection layer, hole transmission layer, electron transfer layer and cathode layer, first white-light emitting layer is set to
Between the hole transmission layer and the electron transfer layer.
OLED display device of the present invention further improvement lies in that, the material of the substrate and the cover board is glass or soft
Property material.
OLED display device of the present invention further improvement lies in that, at least one in the substrate and the cover board is light transmission
's.
OLED display device of the present invention further improvement lies in that, further include white sub-pixels, white sub-pixels tool
There is third white-light emitting layer.
OLED display device of the present invention further improvement lies in that, further include by sealant substrate interconnected and lid
Plate, constitutes sealing space between the substrate and the cover board, first white-light emitting layer, the green light emitting layer, described
Second white-light emitting layer and the third white-light emitting layer are described red in being set on the substrate in the sealing space
Light filter coating corresponds to the position of first white-light emitting layer, the indigo plant in being set in the sealing space on the cover board
Light filter coating corresponds to the position of second white-light emitting layer in being set in the sealing space on the cover board.
OLED display device of the present invention further improvement lies in that, the blue subpixels further include being set to the substrate
On anode layer, hole injection layer, hole transmission layer, electron transfer layer and cathode layer, second white-light emitting layer is set to
Between the hole transmission layer and the electron transfer layer.
OLED display device of the present invention further improvement lies in that, the material of the substrate and the cover board is glass or soft
Property material.
OLED display device of the present invention further improvement lies in that, at least one in the substrate and the cover board is light transmission
's.
Detailed description of the invention
Fig. 1 is the first embodiment schematic diagram of OLED display device of the present invention.
Fig. 2 is the second embodiment schematic diagram of OLED display device of the present invention.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, not
For limiting the present invention.
Embodiment 1:
Referring to Fig. 1, Fig. 1 is the first embodiment schematic diagram of OLED display device of the present invention.Cooperation referring to shown in Fig. 1,
In the first embodiment, OLED display device of the invention, comprising: pass through sealant 30a substrate 10a interconnected and cover board
20a constitutes sealing space 1a, in the anode layer being set on substrate 10a in sealing space 1a between substrate 10a and cover board 20a
40a, hole injection layer 60a, hole transmission layer 70a, electron transfer layer 80a and cathode layer 90a, and it is set to hole transmission layer
Red sub-pixel, green sub-pixels and blue subpixels between 70a and electron transfer layer 80a.Sealant 30a can be sealed in
Protect internal electronic device.Preferably, the material of substrate 10a and cover board 20a are glass or flexible material, and substrate 10a with
At least one in cover board 20a is light transmission.
Wherein, the red sub-pixel has the first white-light emitting layer 111a and feux rouges filter coating 112a, feux rouges filter coating
112a is located on the light direction of the first white-light emitting layer 111a, and the green sub-pixels have green light emitting layer 121a, described
There is blue subpixels the second white-light emitting layer 131a and blue light filter coating 132a, blue light filter coating 132a to be located at the second white light hair
On the light direction of photosphere 131a.Specifically, the first white-light emitting layer 111a, green light emitting layer 121a and the second white-light emitting
Layer 131a in being set between hole transmission layer 70a and electron transfer layer 80a in sealing space 1a, feux rouges filter coating 112a in
The position for corresponding to the first white-light emitting layer 111a on cover board 20a is set in sealing space 1a, blue light filter coating 132a is in close
The position for corresponding to the second white-light emitting layer 131a on cover board 20a is set in envelope space 1a.Further, green light emitting layer
121a passes through the first white-light emitting layer from main light emission, the red sub-pixel and the blue subpixels using organic material respectively
111a and the second white-light emitting layer 131a emit white light, after filtering using feux rouges filter coating 112a and blue light filter coating 132a, hair
Feux rouges and blue light out.
Red sub-pixel is set as being made of white-light emitting layer and feux rouges filter coating by OLED display device of the invention,
Blue subpixels are set as being made of white-light emitting layer and blue filter film, without the use of the organic light emission material of feux rouges and blue light
Material, avoid causes luminous efficiency and service life lower to be asked using the luminous organic material of feux rouges and blue light in the prior art
Topic, can make the stability of OLED display device and service life all be significantly improved.In addition, the quantity of the filter coating of setting is compared
It is also reduced in the prior art, has saved cost.
Embodiment 2:
Referring to Fig. 2, Fig. 2 is the second embodiment schematic diagram of OLED display device of the present invention.Cooperation referring to shown in Fig. 2,
In a second embodiment, OLED display device of the invention, comprising: pass through sealant 30b substrate 10b interconnected and cover board
20b constitutes sealing space 1b, in the anode layer being set on substrate 10b in sealing space 1b between substrate 10b and cover board 20b
40b, hole injection layer 60b, hole transmission layer 70b, electron transfer layer 80b and cathode layer 90b, and it is set to hole transmission layer
Red sub-pixel, green sub-pixels, blue subpixels and white sub-pixels between 70b and electron transfer layer 80b.Sealant
30b can be sealed in protection internal electronic device.Preferably, the material of substrate 10b and cover board 20b are glass or flexible material,
And at least one in substrate 10b and cover board 20b is light transmission.
Wherein, the red sub-pixel has the first white-light emitting layer 111b and feux rouges filter coating 112b, feux rouges filter coating
112b is located on the light direction of the first white-light emitting layer 111b, and the green sub-pixels have green light emitting layer 121b, described
Blue subpixels have the second white-light emitting layer 131b and blue light filter coating 132b, and the white sub-pixels are sent out with third white light
Photosphere 141b, blue light filter coating 132b are located on the light direction of the second white-light emitting layer 131b.Specifically, the first white-light emitting
Layer 111b, green light emitting layer 121a, the second white-light emitting layer 131a and third white-light emitting layer 141b are in sealing space 1a
It is inside set between hole transmission layer 70a and electron transfer layer 80a, feux rouges filter coating 112b is in being set to lid in sealing space 1b
Correspond to the position of the first white-light emitting layer 111b on plate 20b, blue light filter coating 132b is in being set to cover board in sealing space 1b
Correspond to the position of the second white-light emitting layer 131b on 20b.Further, green light emitting layer 121b is independently sent out using organic material
Light, the red sub-pixel and the blue subpixels pass through the first white-light emitting layer 111b and the second white-light emitting layer respectively
131b emits white light, and after filtering using feux rouges filter coating 112b and blue light filter coating 132b, issues feux rouges and blue light.
Red sub-pixel is set as being made of white-light emitting layer and feux rouges filter coating by OLED display device of the invention,
Blue subpixels are set as being made of white-light emitting layer and blue filter film, without the use of the organic light emission material of feux rouges and blue light
Material, avoid causes luminous efficiency and service life lower to be asked using the luminous organic material of feux rouges and blue light in the prior art
Topic, can make the stability of OLED display device and service life all be significantly improved.In addition, the quantity of the filter coating of setting is compared
It is also reduced in the prior art, has saved cost.Also, by increasing white sub-pixels, become OLED display device
RGBW pixel light emission, compared with the prior art in rgb pixel shine, effectively improve the light extraction efficiency of OLED display device, drop
Low-power consumption.
The above is only presently preferred embodiments of the present invention, not does limitation in any form to the present invention, though
So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention, any technology people for being familiar with this profession
Member, in the range of not departing from technical solution of the present invention, when the technology contents using the disclosure above make a little change or repair
Decorations are the equivalent embodiment of equivalent variations, but anything that does not depart from the technical scheme of the invention content, technology according to the present invention are real
Matter any simple modification, equivalent change and modification to the above embodiments, still fall within the range of technical solution of the present invention
It is interior.
Claims (9)
1. a kind of OLED display device characterized by comprising
Red sub-pixel, has the first white-light emitting layer and feux rouges filter coating, and the feux rouges filter coating is located at first white light
On the light direction of luminescent layer；
Green sub-pixels have green light emitting layer；
Blue subpixels, have the second white-light emitting layer and blue light filter coating, and the blue light filter coating is located at second white light
On the light direction of luminescent layer；
It wherein, further include that sealing is constituted by sealant substrate interconnected and cover board between the substrate and the cover board
Space, first white-light emitting layer, the green light emitting layer and second white-light emitting layer are in the sealing space
It is inside set on the substrate, the feux rouges filter coating corresponds to described the in being set on the cover board in the sealing space
The position of one white-light emitting layer, the blue light filter coating correspond to described the in being set on the cover board in the sealing space
The position of two white-light emitting layers；
It is equipped with gap between first white-light emitting layer, the green light emitting layer and second white-light emitting layer, described the
Setting, second white-light emitting layer and the blue light filter coating are just being aligned between one white-light emitting layer and the feux rouges filter coating
Between just aligning setting.
2. OLED display device as described in claim 1, which is characterized in that the red sub-pixel further include be set to it is described
Anode layer, hole injection layer, hole transmission layer, electron transfer layer and cathode layer, first white-light emitting layer on substrate are set
It is placed between the hole transmission layer and the electron transfer layer.
3. OLED display device as claimed in claim 1 or 2, which is characterized in that the material of the substrate and the cover board is
Glass or flexible material.
4. OLED display device as claimed in claim 3, which is characterized in that the substrate is at least one in the cover board
Light transmission.
5. OLED display device as described in claim 1, which is characterized in that it further include white sub-pixels, the sub- picture of white
Element has third white-light emitting layer.
6. OLED display device as claimed in claim 5, which is characterized in that further include by sealant substrate interconnected
With cover board, constitute sealing space between the substrate and the cover board, first white-light emitting layer, the green light emitting layer,
Second white-light emitting layer and the third white-light emitting layer in the sealing space in being set on the substrate, institute
Feux rouges filter coating is stated in the position being set on the cover board corresponding to first white-light emitting layer in the sealing space, institute
Blue light filter coating is stated in the position being set on the cover board corresponding to second white-light emitting layer in the sealing space.
7. OLED display device as claimed in claim 6, which is characterized in that the blue subpixels further include be set to it is described
Anode layer, hole injection layer, hole transmission layer, electron transfer layer and cathode layer, second white-light emitting layer on substrate are set
It is placed between the hole transmission layer and the electron transfer layer.
8. OLED display device as claimed in claims 6 or 7, which is characterized in that the material of the substrate and the cover board is
Glass or flexible material.
9. OLED display device as claimed in claim 8, which is characterized in that the substrate is at least one in the cover board
Light transmission.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510202987.XA CN106158907B (en) | 2015-04-24 | 2015-04-24 | OLED display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510202987.XA CN106158907B (en) | 2015-04-24 | 2015-04-24 | OLED display device |
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| CN106158907A CN106158907A (en) | 2016-11-23 |
| CN106158907B true CN106158907B (en) | 2019-08-06 |
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| CN201510202987.XA Active CN106158907B (en) | 2015-04-24 | 2015-04-24 | OLED display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107579107B (en) * | 2017-09-25 | 2020-12-18 | 联想(北京)有限公司 | OLED display device and electronic equipment |
| CN108037615B (en) * | 2017-12-27 | 2021-01-15 | 武汉华星光电技术有限公司 | Display device |
| CN108663371B (en) * | 2018-04-04 | 2021-01-29 | 武汉华星光电半导体显示技术有限公司 | Method and system for detecting dust and foreign matters on display panel |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1719951A (en) * | 2005-06-15 | 2006-01-11 | 悠景科技股份有限公司 | Full-colour organic electroluminescent display and making method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7471041B2 (en) * | 2005-04-25 | 2008-12-30 | Eastman Kodak Company | OLED multicolor displays |
| JP2007011063A (en) * | 2005-06-30 | 2007-01-18 | Sanyo Electric Co Ltd | Organic electroluminescence display device |
| JP5431280B2 (en) * | 2010-09-24 | 2014-03-05 | 株式会社東芝 | Organic EL display |
| KR102113149B1 (en) * | 2012-12-28 | 2020-05-20 | 엘지디스플레이 주식회사 | Organic light emitting element, organic light emitting display device and method for manufacturing the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1719951A (en) * | 2005-06-15 | 2006-01-11 | 悠景科技股份有限公司 | Full-colour organic electroluminescent display and making method thereof |
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Address after: 1568 Jiugong Road, Jinshan Industrial Zone, Jinshan District, Shanghai, 201506 Patentee after: Shanghai Hehui optoelectronic Co., Ltd Address before: 201508, building two, building 100, 1, Jinshan Industrial Road, 208, Shanghai, Jinshan District Patentee before: EverDisplay Optronics (Shanghai) Ltd. |