CN206250194U - A kind of AMOLED display units - Google Patents
A kind of AMOLED display units Download PDFInfo
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- CN206250194U CN206250194U CN201621173374.4U CN201621173374U CN206250194U CN 206250194 U CN206250194 U CN 206250194U CN 201621173374 U CN201621173374 U CN 201621173374U CN 206250194 U CN206250194 U CN 206250194U
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- bragg grating
- volume bragg
- amoled display
- display units
- inclination angle
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Abstract
The utility model is related to technical field of AMOLED display, more particularly to a kind of AMOLED display units, including, pixel cell is arranged on a substrate；Volume Bragg grating unit, is arranged on the pixel cell.By the spectrum selecting frequency characteristic of Volume Bragg grating unit, reduce the half band-width of outgoing wave spectrum, improve the purity of display color, that is, improve the monochromaticjty of display, to improve the display colour gamut of AMOLED display units, i.e., equivalent to the display resolution for improving AMOLED display units.It is particularly suited for the field higher to colour purity requirement.The utility model sets Volume Bragg grating unit on display unit surface, you can improve the purity of display color, the simple structure of whole AMOLED display units, low cost of manufacture and production efficiency is high, high yield rate.
Description
Technical field
The utility model is related to technical field of AMOLED display, more particularly to a kind of AMOLED display units.
Background technology
In the past few years as liquid crystal display panel is promoted and is applied, by taking the display screen of television set as an example, people's custom will be aobvious
The resolution ratio of display screen curtain is referred to as 720p or 1080p, and in general the corresponding resolution ratio of 720p is 1280 × 720,1080p correspondences
Resolution ratio be 1920 × 1080.
In recent years, with the development of organic material and fabricating technology, the product based on OLED technology commercially by
Fade in existing.4K ultra high-definition Display Techniques have begun to expanded application.Existing 4K resolution ratio has 4096 × 2160 and 3840 ×
In 2160 two kinds, 4K is displayed in great enhancing in gradation and details so that picture is closer to real-life.But
It is that 4K ultra high-definitions Display Technique it is also proposed requirement higher to the resolution ratio of display device in use.
Fig. 1 is refer to, Fig. 1 is the gamut area that existing AMOLED display device shows in the prior art.Such as Fig. 1 institutes
Show, be CIE chromaticity diagram, the wherein ＇ of figure 1 is the colour gamut that existing AMOLED display device shows, it is known that the colour gamut face of the ＇ of figure 1
Product is relatively small, because gamut area is smaller, is then just subtracted relatively by the displayable coloured typies of existing AMOLED display device
It is few a lot, and then cause the colour purity of existing AMOLED display device relatively low, color level is not enough enriched.
In the prior art, in order to improve the colour purity of AMOLED display device, generally set in AMOLED display device
Micro-cavity structure is equipped with, referring to the Chinese invention patent application of Application No. 201410377191.3, a kind of raising color is disclosed
The OLED structure of purity.The structure includes substrate, metal anode layer, organic luminous layer, cathode layer, colour reflective layer.By
One layer of colour reflective layer is prepared on metal anode layer, the luminescent device of colour reflective layer correspondence tri- kinds of color of R, G, B is respectively provided with
Tri- kinds of light reflection devices of color of R, G, B.By taking feux rouges as an example, red material can only reflect feux rouges, and meeting from for optical principle
Absorb the light of remaining wave band.Because there is microcavity effect in top-illuminating OLED, during light shakes back and forth, the impure light of color
Color can be absorbed by the R colors light reflection device in colour reflective layer, only reflection feux rouges, so as to improve the reflection efficiency of OLED anodes.
Blue light and green glow are same, and such OLED anodes are all up maximum to the reflectivity of the colors of RGB tri-, so as to improve OLED
Colour purity, obtain the OLED of higher degree.But the complex manufacturing technology of this kind of technical scheme, cost of manufacture compared with
Height, while because complex process causes yield rate relatively low.
Utility model content
The utility model provide it is a kind of improve simple colour purity, manufacture craft, low cost of manufacture and production efficiency it is high, into
A kind of product rate AMOLED display units high, including,
Pixel cell, is arranged on a substrate；
Volume Bragg grating unit, is arranged on the pixel cell.
Preferably, above-mentioned AMOLED display units also include that diffusion sheet is arranged on the Volume Bragg grating.
Preferably, the Volume Bragg grating unit of above-mentioned AMOLED display units includes first body Prague light
Grid, the second Volume Bragg grating, the 3rd Volume Bragg grating, first Volume Bragg grating include the first fringe period and the
One fringe inclination angle, second Volume Bragg grating includes the second fringe period and the second striped inclination angle, the 3rd body
Bragg grating includes Article 3 line cycle and Article 3 line inclination angle.
Preferably, first fringe period of above-mentioned AMOLED display units, the second fringe period, Article 3 line week
Phase is different.
Preferably, the first fringe inclination angle of above-mentioned AMOLED display units, the second body fringe inclination angle, the 3rd
Fringe inclination angle is different.
Preferably, the pixel cell of above-mentioned AMOLED display units includes red sub-pixel, green sub-pixels, indigo plant
Sub-pixels.
Preferably, the red sub-pixel surface of above-mentioned AMOLED display units is provided with described first body Prague
Grating, the green sub-pixels surface is provided with second Volume Bragg grating, and the blue subpixels surface is set
State the 3rd Volume Bragg grating.
Preferably, the Volume Bragg grating of above-mentioned AMOLED display units is transmission-type Volume Bragg grating.
In the utility model embodiment, the pixel cell surface being arranged on substrate is provided with Volume Bragg grating list
Unit, by the spectrum selecting frequency characteristic of Volume Bragg grating unit, reduces the half band-width of outgoing wave spectrum, improves the pure of display color
Degree, that is, improve the monochromaticjty of display, to improve the display colour gamut of AMOLED display units, i.e., single equivalent to AMOLED displays are improved
The display resolution of unit.It is particularly suited for the field higher to colour purity requirement.In addition, the utility model is in display unit table
Face sets Volume Bragg grating unit, you can improve the purity of display color, without setting micro-cavity structure, whole AMOLED shows
The simple structure of unit, low cost of manufacture and production efficiency is high, high yield rate.
Described above is only the general introduction of technical solutions of the utility model, in order to better understand skill of the present utility model
Art means, and being practiced according to the content of specification, and in order to allow above and other purpose of the present utility model, feature
Can be become apparent with advantage, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, described in detail as follows.
Brief description of the drawings
Fig. 1 is the gamut area that existing AMOLED display device shows in the prior art.
Fig. 2 is the structural representation of AMOLED display device in the utility model.
Fig. 3 is the schematic diagram of Bragg's equation being related in the utility model.
Specific embodiment
Further to illustrate that the utility model is to reach technological means and effect that predetermined utility model purpose is taken,
Below in conjunction with accompanying drawing and preferred embodiment, to foundation the utility model proposes a kind of AMOLED display units and its specific implementation
Mode, method, step, structure, feature and effect, describe in detail as after.
About of the present utility model foregoing and other technology contents, feature and effect, it is following coordinate with reference to schema compared with
Can clearly be presented in the detailed description of good embodiment.By the explanation of specific embodiment, when can be to the utility model
Reach technological means that predetermined purpose taken and effect be able to more deeply and it is specific understand, but institute's accompanying drawings are only carried
For reference with purposes of discussion, not for being any limitation as to the utility model.
Fig. 2 is refer to, Fig. 2 is the structural representation of AMOLED display device in the utility model.As shown in Fig. 2 this reality
A kind of AMOLED display units for improving colour purity are provided with new embodiment, wherein, including,
Pixel cell 2, is arranged on a substrate 1；
Volume Bragg grating unit 3, is arranged on the pixel cell 2.
Refer to Fig. 3, Fig. 3 is the schematic diagram of the Bragg's equation being related in the utility model.As shown in figure 3, according to existing
Some Bragg's equations,
2dsin θ=n λ；
Wherein, d is interplanar distance, and θ is the angle between incident ray, reflected ray and reflection crystal face, and λ is wavelength, and n is reflection
Series；
Understand, when above-mentioned geometrical relationship is met between crystal face and X-ray, the diffracted intensity of X-ray will mutually be strengthened.This
Place is only the reference to Bragg's equation.
According to above-mentioned Bragg's equation, when lambda1-wavelength and incidence angle deviate, the very fast decline of diffraction efficiency, body Bradley
Lattice grating has spectrum selecting frequency characteristic.
Based on above-mentioned Volume Bragg grating law, in the utility model, on the surface of pixel cell 2 being arranged on substrate 1
Volume Bragg grating unit 3 is provided with, by the spectrum selecting frequency characteristic of Volume Bragg grating unit 3, reduces the half of outgoing wave spectrum
Wave width, improves the purity of display color, that is, improve the monochromaticjty of display, to improve the display colour gamut of AMOLED display units,
I.e. equivalent to the display resolution for improving AMOLED display units.It is particularly suited for the field higher to colour purity requirement.Separately
In outer the application, display unit surface is only provided with the purity that Volume Bragg grating unit 3 improves display color, without
Optical microcavity structure is set, and the manufacture craft of whole AMOLED display units is simple, low cost of manufacture and production efficiency is high, finished product
Rate is high.
As further preferred embodiment, above-mentioned AMOLED display units, wherein, diffusion sheet 4 is arranged at the body
On Bragg grating.In order to avoid the rapid decay of wide-angle chroma-luminance, in described body Prague light in the utility model
Diffusion sheet 4 is provided with grid, its phenomenon for being intended to be avoided by diffusion sheet 4 the rapid decay of wide-angle brightness, so as to improve product
Visible angle.
Used as further preferred embodiment, the Volume Bragg grating unit 3 of above-mentioned AMOLED display units is wrapped
Include the first Volume Bragg grating 31, the second Volume Bragg grating 32, the 3rd Volume Bragg grating 33, the first body Prague light
Grid 31 include the first fringe period and the first fringe inclination angle, second Volume Bragg grating 32 include the second fringe period and
Second striped inclination angle, the 3rd Volume Bragg grating 33 includes Article 3 line cycle and Article 3 line inclination angle, wherein, institute
It is different to state the first fringe period, the second fringe period, Article 3 line cycle, the first fringe inclination angle, the second striped
Inclination angle, Article 3 line inclination angle are different.
By the fringe period and/or fringe inclination of each Volume Bragg grating in adjusting body Bragg grating elements 3
Angle to control the outgoing optical wavelength and shooting angle of light, to cause that the purity of each Show Color is further improved.
In addition, again may be by the grating material of each Volume Bragg grating in adjusting body Bragg grating elements 3
The outgoing optical wavelength and shooting angle of light are controlled, to cause that the purity of each Show Color is further improved.
As further preferred embodiment, above-mentioned AMOLED display units, wherein, the pixel cell 2 includes red
Sub-pixels 21, green sub-pixels 22, blue subpixels 23, further, the surface of the red sub-pixel 21 is provided with described
First Volume Bragg grating 31, the surface of the green sub-pixels 22 is provided with second Volume Bragg grating 32, the blueness
The surface of sub-pixel 23 is provided with the 3rd Volume Bragg grating 33, because of red sub-pixel 21, green sub-pixels 22, blue sub- picture
The wavelength of light of element 23 is different, color according to different sub-pixels set Volume Bragg grating fringe period and/or
Fringe inclination angle, can further improve the purity of Show Color.
An implementation method is enumerated, the fringe inclination angle of first Volume Bragg grating 31 matched with red sub-pixel 21
More than the fringe inclination angle of second Volume Bragg grating 32 matched with green sub-pixels 22, less than with blue subpixels 23
The fringe inclination angle of the 3rd Volume Bragg grating 33 of matching.
Used as further preferred embodiment, the Volume Bragg grating of above-mentioned AMOLED display units is transmission-type
Volume Bragg grating." frequency band " of the frequency-selecting of transmission-type Volume Bragg grating is narrower, and the filter width of its " frequency band " is usually
0.1nm, while the deflection of 45° angle degree can be realized to incident ray, further enhances the display monochromaticjty of AMOLED display units.
, in luminous power more than 1kW, temperature still can stable operation, ambient stable when being higher than 400 DEG C for transmission-type Volume Bragg grating simultaneously
Property is very high, improves AMOLED display unit job stabilitys.
Preferred embodiment of the present utility model is the foregoing is only, is not used to limit the utility model, it is any ripe
Professional and technical personnel is known, is not being departed from the range of technical solutions of the utility model, when using above-mentioned disclosed technology
Content make it is a little change or modification etc., it is all it is of the present utility model spirit and principle within made any modification, equally replace
Change or improve, should be included within protection domain of the present utility model.
Claims (8)
1. a kind of AMOLED display units, it is characterised in that including,
Pixel cell, is arranged on a substrate；
Volume Bragg grating unit, is arranged on the pixel cell.
2. AMOLED display units according to claim 1, it is characterised in that also include,
Diffusion sheet, is arranged on the Volume Bragg grating.
3. AMOLED display units according to claim 1, it is characterised in that the Volume Bragg grating unit includes the
One Volume Bragg grating, the second Volume Bragg grating, the 3rd Volume Bragg grating, first Volume Bragg grating include first
Fringe period and the first fringe inclination angle, second Volume Bragg grating include the second fringe period and the second fringe inclination
Angle, the 3rd Volume Bragg grating includes Article 3 line cycle and Article 3 line inclination angle.
4. AMOLED display units according to claim 3, it is characterised in that first fringe period, the second striped
Cycle, Article 3 line cycle are different.
5. AMOLED display units according to claim 3, it is characterised in that the first fringe inclination angle, Article 2
Line inclination angle, Article 3 line inclination angle are different.
6. AMOLED display units according to claim 3, it is characterised in that the pixel cell includes red sub- picture
Element, green sub-pixels, blue subpixels.
7. AMOLED display units according to claim 6, it is characterised in that the red sub-pixel surface is set
The first Volume Bragg grating is stated, the green sub-pixels surface is provided with second Volume Bragg grating, the blue sub- picture
Plain surface is provided with the 3rd Volume Bragg grating.
8. AMOLED display units according to claim 1, it is characterised in that the Volume Bragg grating is transmission-type body
Bragg grating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621173374.4U CN206250194U (en) | 2016-11-02 | 2016-11-02 | A kind of AMOLED display units |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201621173374.4U CN206250194U (en) | 2016-11-02 | 2016-11-02 | A kind of AMOLED display units |
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| CN206250194U true CN206250194U (en) | 2017-06-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108873455A (en) * | 2018-07-09 | 2018-11-23 | 京东方科技集团股份有限公司 | A kind of display base plate and preparation method thereof, display device |
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2016
- 2016-11-02 CN CN201621173374.4U patent/CN206250194U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108873455A (en) * | 2018-07-09 | 2018-11-23 | 京东方科技集团股份有限公司 | A kind of display base plate and preparation method thereof, display device |
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