CN106990465A - A kind of colored filter, display panel and display device - Google Patents
A kind of colored filter, display panel and display device Download PDFInfo
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- CN106990465A CN106990465A CN201710411865.0A CN201710411865A CN106990465A CN 106990465 A CN106990465 A CN 106990465A CN 201710411865 A CN201710411865 A CN 201710411865A CN 106990465 A CN106990465 A CN 106990465A
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
- G02B5/201—Filters in the form of arrays
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133514—Colour filters
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/30—Devices specially adapted for multicolour light emission
- H10K59/38—Devices specially adapted for multicolour light emission comprising colour filters or colour changing media [CCM]
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
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- Crystallography & Structural Chemistry (AREA)
- Electroluminescent Light Sources (AREA)
- Optical Filters (AREA)
Abstract
The invention discloses a kind of colored filter, display panel and display device, colored filter is divided into the filtered region of multiple different colours, and colored filter includes：The metal grating and planar optical waveguide set gradually along the exit direction of light；Wherein, metal grating includes multiple screen periods extended in the same direction, and the screen periods width of the filtered region of correspondence different colours is unequal；The filter wavelength of each filtered region increases with the increase of the corresponding screen periods width of each filtered region.Metal grating can realize the filter action of different colours by changing screen periods width, the light of different colours of the planar optical waveguide to filtering out carries out secondary filtering, the frequency spectrum half-peak breadth of each color of light is set to narrow, improve photochromic purity, so as to improve the color saturation of each color, the contrast of its color displays thus can be improved in display.
Description
Technical field
The present invention relates to display technology field, espespecially a kind of colored filter, display panel and display device.
Background technology
With developing rapidly for Display Technique, user there has also been more and more higher to the color rendering effect of display device will
Ask.Organic Light Emitting Diode (Organic Light Emitting Diode, abbreviation OLED) display device is relative to liquid crystal
The showing device excellent specific property such as have self-luminous, high-contrast, fast response time, visual angle wide, is increasingly paid attention to by industry.
The colored mode of current OLED display panel display be divided into it is following it is several in.First, being the sub-pixel using each color
Independent luminous color mode, can be realized by way of vertical three primary colors and the arrangement of horizontal three primary colors two ways.It is above-mentioned
Color mode, which needs three primary colors are deposited by fine metal mask plate, to be arranged, except costly, pixel and mask align with
And the selection of mask material difficulty in implementation process is larger.It is with Nan dian Yao knot second, being the light-emitting mode of color conversion
Close Color Conversion membrane array and realize the technology of colorful light-emitting, using this light-emitting mode for optical color conversion film development difficulty compared with
Greatly.Third, be the light-emitting mode of white luminous combination colored filter, it is similar with liquid crystal panel, using white light OLED as backlight, then
Carry out the optical filtering of each color to realize colored display plus colored filter.This mode is compared to above-mentioned other two kinds of colours
Cost is much lower for illumination mode, and current many OLED displays all use this light-emitting mode.In addition, liquid crystal
Show that the fields such as panel, color light-emitting diode can also use the light-emitting mode of above-mentioned backlight combination colored filter, but it is color
The light transmittance of colo(u)r filter and photochromic purity are relatively low, cause color saturation, contrast, brightness of display panel etc. to have
Treat further raising.
The content of the invention
The embodiment of the present invention provides a kind of colored filter, display panel and display device, to improve color color and degree
With display contrast.
In a first aspect, the embodiment of the present invention provides a kind of colored filter, it is divided into the filtered region of multiple different colours, institute
Stating colored filter includes：The metal grating and planar optical waveguide set gradually along the exit direction of light；Wherein,
The metal grating includes multiple screen periods extended in the same direction, the filtered region of correspondence different colours
The screen periods width is unequal；
The filter wavelength of each filtered region increases with the increase of the corresponding screen periods width of each filtered region
Greatly.
In a kind of possible implementation, in above-mentioned colored filter provided in an embodiment of the present invention, the plane
Fiber waveguide includes：Cushion, ducting layer and the substrate set gradually along the exit direction of light；
The metal grating is located at the side that the cushion deviates from the ducting layer；
The refractive index of the ducting layer is more than the refractive index of the cushion and substrate.
In a kind of possible implementation, in above-mentioned colored filter provided in an embodiment of the present invention, the buffering
Layer is equal with the refractive index of the substrate.
In a kind of possible implementation, in above-mentioned colored filter provided in an embodiment of the present invention, the colour
Optical filter is divided into red filter region, green filter region and blue filter region；
Corresponding each screen periods width is equal in the filtered region of solid color；
The corresponding screen periods width in the red filter region is more than the corresponding screen periods in the green filter region
Width, it is wide that the corresponding screen periods width in the green filter region is more than the corresponding screen periods in the blue filter region
Degree.
In a kind of possible implementation, in above-mentioned colored filter provided in an embodiment of the present invention, the metal
The material of grating is Nano Silver.
In a kind of possible implementation, in above-mentioned colored filter provided in an embodiment of the present invention, the metal
The thickness of grating is 40nm, and the thickness of the cushion is 50-100nm, and the thickness of the ducting layer is 100nm.
In a kind of possible implementation, in above-mentioned colored filter provided in an embodiment of the present invention, the red
The corresponding screen periods width of filtered region is 370-430nm, and the corresponding screen periods width in the green filter region is
310-360nm, the corresponding screen periods width in the blue filter region is 230-280nm；The filtered region institute of each color is right
The dutycycle for the screen periods answered is 0.75；
The dutycycle of the screen periods is the ratio of alternatively non-transparent peak width and screen periods width.
Second aspect, the embodiment of the present invention provides a kind of display panel, including any of the above-described colored filter.
In a kind of possible implementation, in above-mentioned display panel provided in an embodiment of the present invention, the display surface
Plate is bottom emitting formula organic electroluminescence display panel；
The bottom emitting formula organic electroluminescence display panel, including：Underlay substrate, sets gradually on the underlay substrate
Anode, the colored filter, white-light organic light-emitting layer and negative electrode.
In a kind of possible implementation, in above-mentioned display panel provided in an embodiment of the present invention, the display surface
Plate is top emitting formula organic electroluminescence display panel；
The top emitting formula organic electroluminescence display panel, including：Underlay substrate, sets gradually on the underlay substrate
Anode, white-light organic light-emitting layer, the colored filter and negative electrode.
The present invention has the beneficial effect that：
Colored filter provided in an embodiment of the present invention, display panel and display device, colored filter be divided into it is multiple not
With the filtered region of color, colored filter includes：The metal grating and planar optical waveguide set gradually along the exit direction of light；
Wherein, metal grating includes multiple screen periods extended in the same direction, the grating week of the filtered region of correspondence different colours
Phase width is unequal；The filter wavelength of each filtered region increases with the increase of the corresponding screen periods width of each filtered region.
Metal grating can realize the filter action of different colours by changing screen periods width, and planar optical waveguide is to the difference that filters out
The light of color carries out secondary filtering, the frequency spectrum half-peak breadth of each color of light is narrowed, and photochromic purity is improved, so as to improve each color
Color saturation, thus can improve the contrast of its color displays in display.
Brief description of the drawings
Fig. 1 a are one of top view of colored filter provided in an embodiment of the present invention；
Fig. 1 b are the two of the structural representation of colored filter provided in an embodiment of the present invention；
Fig. 2 is the three of the structural representation of colored filter provided in an embodiment of the present invention；
Fig. 3 a are the two of the top view of colored filter provided in an embodiment of the present invention；
Fig. 3 b are the material characteristics profile for the argent that the embodiment of the present invention is used；
Fig. 3 c are the transmitted light light spectrum of colored filter provided in an embodiment of the present invention；
Fig. 3 d are the top view of metal grating provided in an embodiment of the present invention；
Fig. 4 a are the structural representation of bottom emitting type organic electroluminescence display panel provided in an embodiment of the present invention；
Fig. 4 b are the structural representation of top emission type organic electroluminescence display panel provided in an embodiment of the present invention.
Wherein, 11 be metal grating；12 be planar optical waveguide；121 be cushion；122 be ducting layer；123 be substrate；R
For red filter region；G is green filter region；B is blue filter region.
Embodiment
The embodiment of the present invention provides a kind of colored filter, display panel and display device, to improve color color and degree
With display contrast.
It is understandable to enable the above objects, features and advantages of the present invention to become apparent, below in conjunction with accompanying drawing and implementation
The present invention will be further described for example.However, example embodiment can be implemented in a variety of forms, and it is not understood as limited to
Embodiment set forth herein；On the contrary, these embodiments are provided so that the present invention more comprehensively and completely, and by example embodiment party
The design of formula comprehensively conveys to those skilled in the art.
As shown in Figure 1a, colored filter provided in an embodiment of the present invention, is divided into the filtered region of multiple different colours
(P1-P3), wherein, the region shown in P1-P3 is respectively the filtered region of three kinds of different colours.Further, as shown in Figure 1 b,
Colored filter includes：(it is usually the light direction of white backlight, side as indicated by the arrow in figure ib along the exit direction of light
To) metal grating 11 that sets gradually and planar optical waveguide 12.
Wherein, metal grating 11 includes multiple screen periods extended in the same direction, the filter area of correspondence different colours
The screen periods width in domain is unequal；The filter wavelength of each filtered region with the corresponding screen periods width of each filtered region increasing
Increase greatly.
Theoretical research is proved, in metal grating in the case where each parameter is certain, has transmitance to the light of a certain wavelength
Increased effect.Therefore existing colorized optical filtering is replaced using metal grating in above-mentioned colored filter provided in an embodiment of the present invention
The color film of piece, corresponding to the filtered region of different colours, setting has different screen periods width, thus can also play three bases
The filter action of coloured light.And replace color film to avoid absorbing because color film generally all has light using metal grating
The problem of transmitance lost and caused is low, so as to improve display brightness in practical application.Further, in metal light
On the premise of the thickness of grid is certain, the filter wavelength of each filtered region is with the increasing of the corresponding screen periods width of each filtered region
Increase greatly, realize the subrane transmission of backlight.If for example, the filter wavelength of the filtered region P1-P3 in Fig. 1 a is optical filtering
Region P1 filter wavelength is more than P2 filter wavelength, when P2 filter wavelength is more than P3 filter wavelength, then metal grating 11
It is more than P2 screen periods width in correspondence filtered region P1 screen periods width, P2 screen periods width is more than P3 light
Grid cycle width.
Further, setting wavelength can transmitted in the filtered region of different colours after the effect of metal grating 11
The light of scope, then the wave-length coverage of transmitted light can be controlled by planar optical waveguide 12, the light transmitted in planar optical waveguide
All there is cut-off frequency (f=c/ λ) in electric field and every kind of mould in magnetic field, to should cut-off frequency, it is right in planar optical waveguide
It is the cutoff wavelength that should have the maximum wavelength that can pass through in cutoff wavelength, waveguide.Thus, it is possible to play the work of secondary optical filtering
With so that half slit width of transmitted light is narrower, goes out light color purer.Thus, the color saturation of each color is improved, in display
The contrast of its color displays can be improved.
Specifically, in above-mentioned colored filter provided in an embodiment of the present invention, as shown in Fig. 2 planar optical waveguide 12 is wrapped
Include：Cushion 121, ducting layer 122 and the substrate 123 set gradually along the exit direction of light；Wherein, metal grating is located at buffering
Layer deviates from the side of ducting layer.In actual applications, making above-mentioned planar optical waveguide 12 can be using anti-with the exit direction of light
Sequence is made, specifically, and ducting layer 122 and cushion 121 can be sequentially formed on substrate 123, then metal grating 11 is straight
Connect to be formed on the cushion 121 of planar optical waveguide 12.
In actual applications, forming Planar Optical Waveguide Structures needs the refractive index for ensureing ducting layer 122 to be more than cushion 121
And the refractive index of substrate 123.Symmetrical optical waveguide structure is constituted when cushion 121 is equal with the refractive index of substrate 123.Wherein,
The refractive index of cushion 121 and substrate 123 can select the material such as transparent resin or silica and made 1.5 or so；
The refractive index of ducting layer 122 can be between 1.8-2.5, using such as silica (Si3N4), the material such as tin indium oxide (ITO) carries out
Make.
Below so that the most wide generation that can filter of application is red, exemplified by the colored filter of green and blueness to reality
Each parameter optimization of metal grating 11 and planar optical waveguide 12 is specifically described in.
As shown in Figure 3 a, colored filter provided in an embodiment of the present invention, can be red filter region R, green filter area
Domain G and blue filter region B.
Wherein, each screen periods width of corresponding metal grating 11 is equal in the R of red filter region；Green filter area
Each screen periods width of corresponding metal grating 11 is equal in the G of domain；Corresponding metal grating 11 in the B of blue filter region
Each screen periods width is equal.And R corresponding screen periods width in red filter region is corresponding more than green filter region G
Screen periods width, it is wide that G corresponding screen periods width in green filter region is more than the corresponding screen periods of blue filter region B
Degree.
It should be noted that metal grating is in addition to screen periods width can influence the wavelength of transmitted light, metal grating institute
The change of the material and metal thickness of use can also influence the efficiency and wavelength of transmitted light, in specific application, it is necessary to according to
The parameters such as the thickness of the screen periods of metal grating and metal level are redesigned using the material property of metal and optimized.
In above-mentioned colored filter provided in an embodiment of the present invention, metal grating 11 is made using Nano Silver, by metal
Grating is controlled in nanometer scale, can effectively improve grating resolution.The material property of metal nano Ag employed in it
Curve as shown in Figure 3 b, includes Ag refraction coefficient and extinction coefficient and the relation of wavelength.The thickness of metal grating 11 is uniform,
It is set to 40nm.Further, the material of cushion 121 and substrate 123 is using using SiO2, the wherein thickness of cushion 121
Degree is set to 50-100nm；The material of ducting layer 122 uses SiNx, the thickness of ducting layer 122 determines what is existed in the waveguide
Guided wave mode number, ducting layer 122 is thicker, then guided wave mode number present in waveguide is more, except the shifting of transmitted light peak position
Outside dynamic, the number or intensity of Interference Peaks can also increase with the increase of the thickness of ducting layer 122, in embodiments of the present invention
The thickness of ducting layer 122 is set to 100nm.
On this basis, the embodiment of the present invention uses the optics and photoelectricity being based on based on Finite-Difference Time-Domain Method (FDTD)
Sub- software FDTD Solutions (Lumerical.ca) optimize to the parameter of metal grating.By optimizing nano metal Ag
Optical grating construction is found, when the periodic width of grating is in the range of 230-280nm, 310-360nm and 370-430nm, screen periods
Dutycycle be 0.75 or so, and ducting layer 122 thickness be 100nm when, you can realize blueness, green and red transmission light.
Wherein the duty FF ratios of screen periods are the ratio of non-penetrating region width (i.e. metal line width) and screen periods width.And adjusting
When the FF of whole optical grating construction is excessive or too small, wavelength, half-peak breadth and the efficiency of transmission of transmitted light all can be by a certain degree of
Influence.
Preferably, the metal grating 11 when transmission light extraction is red, green and blue three color can use as shown in the table
Geometric parameter (unit is nm)：
| Color | Screen periods (p) | Etched height (h) | Line width (w) |
| Red (Red) | 400 | 40 | 300 |
| Green (Green) | 330 | 40 | 247.5 |
| Blue (Blue) | 250 | 40 | 187.5 |
Wherein, the implication represented by each parameter shown in upper table can be mutually right with the top view of the metal grating shown in Fig. 3 d
It should check.The descending position of screen periods width is corresponding in turn in red filter region R, green filter region G and blueness
Filtered region B.
Resulting red (Red), green (Green) when carrying out colorized optical filtering using geometric parameter as shown above
And the spectrum of blue (Blue) transmitted light is as shown in Figure 3 c.When the screen periods width of metal grating is 250nm, etched height is
40nm, i.e. Ag layer are possible to determine when the sample has been completely etched, during a width of 187.5nm of metal wire, can obtain main in 420-500nm scope wave bands
Blue transmission light, half-peak breadth is about 50nm, and transmissivity is about 54%.The principle of the light extraction of green and red also same blueness, respectively
In 520-580nm scopes and 600-720nm green light region and region of red light transmission light extraction, half-peak breadth may each be about 30nm,
Transmissivity respectively reached for 85% and 90% (as shown in Figure 3 c).
In actual applications not each geometric parameter of exact requirements as described in upper table, can light extraction according to actual needs wavelength
It is adjusted, does not limit herein.In addition, in above-described colored filter metal grating polar plane fiber waveguide it is each
The setting of parameter is all based on realizing the color light extraction of red, green, blue three and design optimization, metal grating for other materials and flat
Face fiber waveguide, above parameter is also needed to recalculate adjustment and optimized.In addition, the inventive concept using the present invention can also be by changing
The parameter of change metal grating and planar optical waveguide realizes the optical filtering of other colors such as yellow, cyan and carmetta, herein no longer
Repeat.
In addition, above-mentioned metal grating provided in an embodiment of the present invention can also be used in addition to being made using argent
Other metal materials such as metallic aluminium, after other metal materials are changed, above-mentioned each parameter needs to redesign optimization.This hair
The above-mentioned metal grating that bright embodiment is provided can be made using nano impression and etching method, specifically, be set on mask plate
The optical grating construction of the different transmitted lights of three kinds of correspondences is counted, is pressed using the method for nano impression on such as photoresist on metal Ag surfaces
The structure of metal grating is printed off, then Ag is etched away with dry etching (such as RIE or ICP) or wet solution etching (such as concentrated nitric acid)
Layer, after stripping photoresist, just can obtain the optical grating construction of different cycles at Ag layers.
Finally it should be noted that because light wave is shear wave, for shear wave, the direction of vibration of ripple does not have to the direction of propagation
Symmetry, and the vibration side of ripple is referred to as polarization relative to the asymmetry of the direction of propagation, it is one that shear wave is different from compressional wave
Most obvious mark, only shear wave just has polarization phenomena.Above-mentioned metal grating provided in an embodiment of the present invention, the vibration side of light wave
The change of above-mentioned refractive index can be experienced in the oscillating component (e light) along x-axis direction as shown in Figure 3 d, and direction of vibration edge
The oscillating component (o light) in y-axis direction is then not felt by the change of above-mentioned refractive index, so being inclined by the transmitted light of metal grating
Shake light (e light).
Based on same inventive concept, the embodiment of the present invention additionally provides a kind of display panel, including any of the above-described colored filter
Mating plate, the display panel can be any type of display panel of the light-emitting mode using backlight combination colored filter, for example,
The display panel can be liquid crystal display panel, organic electroluminescence display panel, color light-emitting diode display panel etc..
When above-mentioned display panel provided in an embodiment of the present invention is organic electroluminescence display panel (i.e. OLED display panel),
It is divided into bottom emitting formula organic electroluminescence display panel and top emitting formula organic electroluminescence display panel.
As shown in fig. 4 a, bottom emitting formula organic electroluminescence display panel includes：Underlay substrate 41, on underlay substrate 41 successively
Anode 42, colored filter 43, white-light organic light-emitting layer 44 and the negative electrode 45 of setting.In addition, bottom emitting formula organic light emission is aobvious
Show that panel may also include：Hole transmission layer 46 between anode 42 and colored filter 43, and positioned at the organic hair of white light
Electron transfer layer 47 between photosphere 44 and negative electrode 45.
As shown in Figure 4 b, top emitting formula organic electroluminescence display panel, including：Underlay substrate 41, on underlay substrate 41 according to
Anode 42, white-light organic light-emitting layer 44, colored filter 43 and the negative electrode 45 of secondary setting.In addition, bottom emitting formula organic light emission
Display panel may also include：Hole transmission layer 46 between anode 42 and white-light organic light-emitting layer 44, and positioned at colour
Electron transfer layer 47 between optical filter 43 and negative electrode 45.
In addition, when display panel is liquid crystal display panel, above-mentioned colored filter can be as in color membrane substrates
Color film layer, is arranged oppositely with array base palte.
The embodiment of the present invention additionally provides a kind of display device, including any of the above-described display panel.The display device can be
The display devices such as oled panel, OLED display, OLED TVs or Electronic Paper, or the mobile device such as mobile phone, smart mobile phone.
Colored filter provided in an embodiment of the present invention, display panel and display device, colored filter be divided into it is multiple not
With the filtered region of color, colored filter includes：The metal grating and planar optical waveguide set gradually along the exit direction of light；
Wherein, metal grating includes multiple screen periods extended in the same direction, the grating week of the filtered region of correspondence different colours
Phase width is unequal；The filter wavelength of each filtered region increases with the increase of the corresponding screen periods width of each filtered region.
Metal grating can realize the filter action of different colours by changing screen periods width, and planar optical waveguide is to the difference that filters out
The light of color carries out secondary filtering, the frequency spectrum half-peak breadth of each color of light is narrowed, and photochromic purity is improved, so as to improve each color
Color saturation, thus can improve the contrast of its color displays in display.
, but those skilled in the art once know basic creation although preferred embodiments of the present invention have been described
Property concept, then can make other change and modification to these embodiments.So, appended claims are intended to be construed to include excellent
Select embodiment and fall into having altered and changing for the scope of the invention.
Obviously, those skilled in the art can carry out the essence of various changes and modification without departing from the present invention to the present invention
God and scope.So, if these modifications and variations of the present invention belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising including these changes and modification.
Claims (10)
1. a kind of colored filter, is divided into the filtered region of multiple different colours, it is characterised in that the colored filter bag
Include：The metal grating and planar optical waveguide set gradually along the exit direction of light；Wherein,
The metal grating includes multiple screen periods extended in the same direction, and correspondingly the filtered region of different colours is described
Screen periods width is unequal；
The filter wavelength of each filtered region increases with the increase of the corresponding screen periods width of each filtered region.
2. colored filter as claimed in claim 1, it is characterised in that the planar optical waveguide includes：Along the outgoing side of light
To the cushion, ducting layer and substrate set gradually；
The metal grating is located at the side that the cushion deviates from the ducting layer；
The refractive index of the ducting layer is more than the refractive index of the cushion and the substrate.
3. colored filter as claimed in claim 2, it is characterised in that the refractive index phase of the cushion and the substrate
Deng.
4. the colored filter as described in claim any one of 1-3, it is characterised in that the colored filter is divided into red filter
Light region, green filter region and blue filter region；
Corresponding each screen periods width is equal in the filtered region of solid color；
The corresponding screen periods width in the red filter region is more than the corresponding screen periods width in the green filter region,
The corresponding screen periods width in the green filter region is more than the corresponding screen periods width in the blue filter region.
5. colored filter as claimed in claim 4, it is characterised in that the material of the metal grating is Nano Silver.
6. colored filter as claimed in claim 5, it is characterised in that the thickness of the metal grating is 40nm, described slow
The thickness for rushing layer is 50-100nm, and the thickness of the ducting layer is 100nm.
7. colored filter as claimed in claim 6, it is characterised in that the corresponding screen periods in the red filter region are wide
Spend for 370-430nm, the corresponding screen periods width in the green filter region is 310-360nm, the blue filter region
Corresponding screen periods width is 230-280nm；The dutycycle of screen periods corresponding to the filtered region of each color is 0.75；
The dutycycle of the screen periods is the ratio of alternatively non-transparent peak width and screen periods width.
8. a kind of display panel, it is characterised in that including the colored filter as described in claim any one of 1-7.
9. display panel as claimed in claim 8, it is characterised in that characterized in that, the display panel is bottom emitting formula
Organic electroluminescence display panel；
The bottom emitting formula organic electroluminescence display panel, including：Underlay substrate, the sun set gradually on the underlay substrate
Pole, the colored filter, white-light organic light-emitting layer and negative electrode.
10. display panel as claimed in claim 8, it is characterised in that characterized in that, the display panel is top emitting formula
Organic electroluminescence display panel；
The top emitting formula organic electroluminescence display panel, including：Underlay substrate, the sun set gradually on the underlay substrate
Pole, white-light organic light-emitting layer, the colored filter and negative electrode.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710411865.0A CN106990465A (en) | 2017-06-05 | 2017-06-05 | A kind of colored filter, display panel and display device |
| PCT/CN2018/088886 WO2018223874A1 (en) | 2017-06-05 | 2018-05-29 | Color filter, display panel, and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710411865.0A CN106990465A (en) | 2017-06-05 | 2017-06-05 | A kind of colored filter, display panel and display device |
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|---|---|
| CN106990465A true CN106990465A (en) | 2017-07-28 |
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| CN201710411865.0A Pending CN106990465A (en) | 2017-06-05 | 2017-06-05 | A kind of colored filter, display panel and display device |
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| WO (1) | WO2018223874A1 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107390418A (en) * | 2017-07-31 | 2017-11-24 | 京东方科技集团股份有限公司 | A kind of filtering structure, display base plate, display panel and display device |
| WO2018223874A1 (en) * | 2017-06-05 | 2018-12-13 | 京东方科技集团股份有限公司 | Color filter, display panel, and display device |
| CN110646980A (en) * | 2019-09-29 | 2020-01-03 | 京东方科技集团股份有限公司 | Liquid crystal display |
| CN110928035A (en) * | 2019-12-20 | 2020-03-27 | 京东方科技集团股份有限公司 | Display device |
| CN111312913A (en) * | 2020-02-20 | 2020-06-19 | 京东方科技集团股份有限公司 | Display device |
| CN111461040A (en) * | 2020-04-07 | 2020-07-28 | 武汉华星光电技术有限公司 | Electronic equipment and optical fingerprint identification module thereof |
| CN113138490A (en) * | 2021-04-23 | 2021-07-20 | 武汉华星光电技术有限公司 | Reflective display panel |
| CN114144824A (en) * | 2019-08-29 | 2022-03-04 | 3M创新有限公司 | Miniature LED display |
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| WO2018223874A1 (en) * | 2017-06-05 | 2018-12-13 | 京东方科技集团股份有限公司 | Color filter, display panel, and display device |
| WO2019024487A1 (en) * | 2017-07-31 | 2019-02-07 | 京东方科技集团股份有限公司 | Light filtering structure, display substrate, display panel, and display device |
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| CN107390418A (en) * | 2017-07-31 | 2017-11-24 | 京东方科技集团股份有限公司 | A kind of filtering structure, display base plate, display panel and display device |
| US10976593B2 (en) * | 2017-07-31 | 2021-04-13 | Boe Technology Group Co., Ltd. | Filter structure, display substrate, display panel and display device |
| CN114144824A (en) * | 2019-08-29 | 2022-03-04 | 3M创新有限公司 | Miniature LED display |
| CN110646980A (en) * | 2019-09-29 | 2020-01-03 | 京东方科技集团股份有限公司 | Liquid crystal display |
| CN110646980B (en) * | 2019-09-29 | 2022-07-29 | 京东方科技集团股份有限公司 | Liquid crystal display |
| CN110928035A (en) * | 2019-12-20 | 2020-03-27 | 京东方科技集团股份有限公司 | Display device |
| CN111312913A (en) * | 2020-02-20 | 2020-06-19 | 京东方科技集团股份有限公司 | Display device |
| CN111461040A (en) * | 2020-04-07 | 2020-07-28 | 武汉华星光电技术有限公司 | Electronic equipment and optical fingerprint identification module thereof |
| CN113138490A (en) * | 2021-04-23 | 2021-07-20 | 武汉华星光电技术有限公司 | Reflective display panel |
| WO2022222189A1 (en) * | 2021-04-23 | 2022-10-27 | 武汉华星光电技术有限公司 | Reflective display panel |
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