CN106647006A - Color filter and method for manufacturing thereof as well as display device - Google Patents
Color filter and method for manufacturing thereof as well as display device Download PDFInfo
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- CN106647006A CN106647006A CN201710084503.5A CN201710084503A CN106647006A CN 106647006 A CN106647006 A CN 106647006A CN 201710084503 A CN201710084503 A CN 201710084503A CN 106647006 A CN106647006 A CN 106647006A
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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
-
- 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
- G02F1/133516—Methods for their manufacture, e.g. printing, electro-deposition or photolithography
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- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Optical Filters (AREA)
Abstract
The present invention discloses a color filter and a method for manufacturing thereof as well as a display device. The color filter comprises: a substrate, a first color filter layer including a first red filter area, a first green filter area, a first blue filter area, and transparent resin layers that space the three filter areas, a flat layer covering the first color filter layer with the flat surface thereof kept away from the substrate, and a second color filter layer including a second red filter area, a second green filter area, a second blue filter area, and black matrices that space the three filter areas, wherein orthographic projections of the first red filter area, the first green filter area, the first blue filter area and the transparent resin layers on the substrate correspond and coincide with the orthographic projections of the second red filter area, the second green filter area, the second blue filter area and the black matrices on the substrate; and the second red filter area, the second green filter area, the second blue filter area and the black matrices are as thick as each other. The color filter is large in light-exiting angle with improvement in cross color in lateral view.
Description
Technical field
The present invention relates to field of liquid crystal display, more particularly to a kind of colored filter and preparation method thereof, display device.
Background technology
Thin Film Transistor-LCD with its small volume, it is low in energy consumption, radiationless the features such as, be widely used,
Its display floater includes colored filter and the array base palte arranged to box, and is filled between color membrane substrates and array base palte
Liquid crystal.Wherein, colored filter (ColorFilter, abbreviation CF) is used to realize the display of colour picture.
As shown in figure 1, colored filter is generally comprised:Substrate 01, the black matrix (BM) 02 being arranged on substrate 01 and red
Color (R) filter area 031, green (G) filter area 032 are flat with blue (B) filter area 033, covering black matrix 02 and filter area
Layer 04, and the support column 05 being arranged on flatness layer 04.And the planarization capability of flatness layer 04 is limited, when the Δ (film of R/G/B
The thickness of thickness-BM) more than the planarization capability of flatness layer 04, floating segment difference is will be unable to, and in prior art, each color filter area
Variable thickness cause, for sprite, such as red monochromatic picture, light is from the blue pixel outgoing for closing on, its shooting angle θ
It is presented negatively correlated with the thickness of Δ (thickness of the thickness-BM of R/G/B), flatness layer 04, in current colorized optical filtering, due to going out
Penetrate angle, θ less, it is difficult to the interior not colour mixture in 60 degree of side-looking angle is met, therefore it provides a kind of colour for improving side-looking angle colour contamination problem
Optical filter is particularly important.
The content of the invention
The present invention provides a kind of colored filter and preparation method thereof, display device, by hierarchical design, will be far from substrate
The thickness of the second chromatic filter layer of side is designed to consistent with black matrix thickness, and the second chromatic filter layer is positioned close to substrate
Side, without the need for being planarized, the angle of emergence of light is larger, can improve side-looking angle colour contamination problem, with above-mentioned colored filter
Preferably, the method for making the colored filter simplifies Making programme to the picture effect of the display device of mating plate, is effectively saved
Cost of manufacture.
Concrete technical scheme provided in an embodiment of the present invention is as follows:
A kind of colored filter, including:
Substrate;
First chromatic filter layer, first chromatic filter layer includes the first red filter area, the first green filter area, the
One blue filter area and for being spaced between the first red filter area, the first green filter area, the first blue filter area
Transparent resin layer;
Flatness layer, is covered on the first chromatic filter layer, and flatness layer is flat away from the surface of substrate;
Second chromatic filter layer, second chromatic filter layer includes the second red filter area, the second green filter area, the
Two blue filter areas and for being spaced between the second red filter area, the second green filter area, the second blue filter area
Black matrix;
The first red filter area, the first green filter area, the first blue filter area, transparent resin layer are on substrate
Orthographic projection and the orthographic projection one of the second red filter area, the second green filter area, the second blue filter area, black matrix on substrate
One correspondence and coincidence;
The second red filter area, the second green filter area, the second blue filter area are identical with the thickness of black matrix.
In above-mentioned colored filter, because the first red filter area, the first green filter area, the first blue filter area are leaned on
Nearly substrate, the second red filter area, the second green filter area, the second blue filter area away from substrate, and the second red filter area,
Second green filter area, the second blue filter area are identical with the thickness of black matrix, by hierarchical design so that away from substrate side
The second red filter area, the second green filter area, the second blue filter area it is identical with the thickness of black matrix, it is flat without the need for carrying out
Change and ensure that black matrix face is directly flushed with the second red filter area, the second green filter area, the second blue filter area, and without flat
Smooth layer, so that Δ (R/G/B-BM)=0, OC=0, and it is beam projecting angle, θ and Δ (thickness of the thickness-BM of R/G/B), flat
The thickness of smooth layer is presented negatively correlated, and then causes the angle of emergence of light larger, improves side-looking angle colour contamination problem;Furthermore it is possible to logical
The R/G/B for crossing the first chromatic filter layer and the second chromatic filter layer uses different color blockings, carries out colour mixture, i.e., equivalent to using two
Kind of R/G/B colour mixtures become new R/G/B, i.e., need not develop new color blocking, the not only less quantity of color resistance of color filter, also may be used
With at any time using existing color blocking different proportion colour mixture meeting new chromaticity requirements, therefore the color effect of colored filter compared with
It is good.
Preferably, there is weight in the first red filter area with the red wavelength range that the second red filter area can pass through
It is folded.
Preferably, the green wavelength that the first green filter area can pass through with the second green filter area has overlap.
Preferably, there is weight in the first blue filter area with the blue wavelength range that the second blue filter area can pass through
It is folded.
Preferably, the thickness of second chromatic filter layer is 1.15 microns~1.5 microns.
Preferably, each not phase of the thickness in the first red filter area, the first green filter area and the first blue filter area
Together.
Preferably, the maximum gauge of the flatness layer is 1.5 microns~2.0 microns.
Present invention also offers a kind of display device, including the colored filter described in as above any one.
Because the angle of emergence of the light of above-mentioned colored filter is larger, side-looking angle colour contamination problem can be improved, and color is imitated
Fruit is preferable, therefore, the picture effect of the display device with above-mentioned colored filter is preferable.
Present invention also offers a kind of preparation method of colored filter, including:
Form the first chromatic filter layer on substrate, first chromatic filter layer includes the first red filter area, first
Green filter area, the first blue filter area and for being spaced the first red filter area, the first green filter area, first blue
Transparent resin layer between filter area;
Flatness layer is formed on first chromatic filter layer, the flatness layer is flat away from the surface of substrate;
The second chromatic filter layer is formed on the flatness layer, second chromatic filter layer includes the second red filter
Area, the second green filter area, the second blue filter area and for be spaced the second red filter area, the second green filter area,
Black matrix between second blue filter area, and the first red filter area, the first green filter area, the first blue filter
The orthographic projection of area, transparent resin layer on substrate and the second red filter area, the second green filter area, the second blue filter area,
Orthographic projection of the black matrix on substrate is corresponded and overlapped, and the second red filter area, the second green filter area, second
Blue filter area is identical with the thickness of black matrix.
In the preparation method of colored filter, by hierarchical design, the second chromatic filter layer of substrate side is will be far from
Thickness be designed to consistent with black matrix thickness, the second chromatic filter layer is positioned close to the side of substrate, flat without the need for carrying out
Change, the angle of emergence of light is larger, can improve side-looking angle colour contamination problem, simplifies Making programme, is effectively saved cost of manufacture.
Preferably, there is weight in the first red filter area with the red wavelength range that the second red filter area can pass through
It is folded;And/or, the green wavelength that the first green filter area can pass through with the second green filter area has overlap;And/or, institute
The blue wavelength range that stating the first blue filter area can pass through with the second blue filter area has overlap.
Description of the drawings
Fig. 1 is the structural representation of colored filter in prior art;
Fig. 2 is the structural representation of colored filter in the embodiment of the present invention;
Fig. 3 is that the light of colored filter in the embodiment of the present invention propagates schematic diagram;
Fig. 4 is colored filter Making programme figure in the embodiment of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than the embodiment of whole.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
As shown in FIG. 2 and 3, a kind of colored filter, including:
Substrate 1;
First chromatic filter layer, the first chromatic filter layer includes the first red filter area 21, the first green filter area 22, the
One blue filter area 23 and for be spaced the first red filter area 21, the first green filter area 22, the first blue filter area 23 it
Between transparent resin layer 24;
Flatness layer 4, is covered on the first chromatic filter layer, and flatness layer is flat away from the surface of substrate;
Second chromatic filter layer, the second chromatic filter layer includes the second red filter area 31, the second green filter area 32, the
Two blue filter areas 33 and for be spaced the second red filter area 31, the second green filter area 32, the second blue filter area 33 it
Between black matrix 34;
First red filter area 21, the first green filter area 22, the first blue filter area 23, transparent resin layer 24 are in substrate
Orthographic projection on 1 is with the second red filter area 31, the second green filter area 32, the second blue filter area 33, black matrix 34 in lining
Orthographic projection on bottom 1 is corresponded and overlapped;
The thickness phase of the second red filter area 31, the second green filter area 32, the second blue filter area 33 and black matrix 34
Together.
In above-mentioned colored filter, due to the first red filter area 21, the first green filter area 22, the first blue filter
Area 23 near substrate 1, the second red filter area 31, the second green filter area 32, the second blue filter area 33 away from substrate 1, and
Second red filter area 31, the second green filter area 32, the second blue filter area 33 are identical with the thickness of black matrix 34, by dividing
Floor designs the second red filter area 31, the second green filter area 32, the and of the second blue filter area 33 caused away from the side of substrate 1
The thickness of black matrix 34 is identical, without the need for carry out planarization ensure black matrix 34 face directly with the second red filter area 31, second
Green filter area 32, the second blue filter area 33 flush, and without flatness layer 4, so that Δ (R/G/B-BM)=0, OC=0, and
Beam projecting angle, θ is presented negatively correlated with the maximum film thickness of Δ (thickness of the thickness-BM of R/G/B), flatness layer 4, and then causes
The angle of emergence of light is larger, improves side-looking angle colour contamination problem;Furthermore it is possible to pass through the first chromatic filter layer and the second colorized optical filtering
Layer R/G/B use different color blockings, carry out colour mixture, i.e., become new R/G/B equivalent to using two kinds of R/G/B colour mixtures, i.e., without
New color blocking need to be developed, the not only less quantity of color resistance of color filter, it is also possible at any time using the different proportion of existing color blocking
Colour mixture meeting new chromaticity requirements, therefore the color effect of colored filter is preferable.
On the basis of above-mentioned colored filter, in order on the basis of new color blocking is not developed by existing color blocking
Collocation colour mixture reaches the effect of new red resistance, and in a kind of preferred embodiment, the first red filter area 21 and the second redness are filtered
The red wavelength range that light area 31 can pass through has overlap.
First red filter area 21 is identical with the red wavelength range that the second red filter area 31 can pass through or has a portion
Divide and overlap.Different color blockings is used from the second red filter area 31 by the first red filter area 21, colour mixture is carried out, i.e., equivalent to
Become new redness using two kinds of red colour mixtures, i.e., need not develop new color blocking, the not only less quantity of color resistance of color filter,
Can also at any time using existing color blocking different proportion colour mixture meeting new chromaticity requirements, therefore the color of colored filter is imitated
Fruit is preferably.
On the basis of above-mentioned colored filter, in order on the basis of new color blocking is not developed by existing color blocking
Collocation colour mixture reaches the effect of new green resistance, and in a kind of preferred embodiment, the first green filter area 22 and the second green are filtered
The green wavelength that light area 32 can pass through has overlap.
First green filter area 22 is identical with the green wavelength that the second green filter area 32 can pass through or has a portion
Divide and overlap.Different color blockings is used from the second green filter area 32 by the first green filter area 22, colour mixture is carried out, i.e., equivalent to
Become new green using two kinds of green colour mixtures, i.e., need not develop new color blocking, the not only less quantity of color resistance of color filter,
Can also at any time using existing color blocking different proportion colour mixture meeting new chromaticity requirements, therefore the color of colored filter is imitated
Fruit is preferably.
On the basis of above-mentioned colored filter, in order on the basis of new color blocking is not developed by existing color blocking
Collocation colour mixture reaches the effect of new blue resistance, and in a kind of preferred embodiment, the first blue filter area 23 and the second blueness are filtered
The blue wavelength range that light area 33 can pass through has overlap.
First blue filter area 23 is identical with the blue wavelength range that the second blue filter area 33 can pass through or has a portion
Divide and overlap.Different color blockings is used from the second blue filter area 33 by the first blue filter area 23, colour mixture is carried out, i.e., equivalent to
Become new blueness using two kinds of green colour mixtures, i.e., need not develop new color blocking, the not only less quantity of color resistance of color filter,
Can also at any time using existing color blocking different proportion colour mixture meeting new chromaticity requirements, therefore the color of colored filter is imitated
Fruit is preferably.
When the colourity of colored filter is improved, in prior art, due to colored filter cannot be improved by adjusting thickness
The colourity of mating plate, it is necessary to develop new color blocking.When the species of color blocking is a lot, when production, when needing more
Between, production capacity is wasted, and the cycle of new color blocking exploitation is also very long, it is difficult to meet ageing.And the colored filter that the present invention is provided
Due to using the first chromatic filter layer and the second chromatic filter layer hierarchical design, passing through make in the second chromatic filter layer
The color blocking species of R2/G2/B2 is different with the color blocking species of R1/G1/B1 in the first chromatic filter layer, is carried out by existing color blocking
Collocation colour mixture reaching the effect of new color blocking, so as to without developing new color blocking.
In a kind of preferred embodiment, the thickness of the second chromatic filter layer is 1.15 microns~1.5 microns.Second colored filter
The second red filter area 31 in photosphere, the second green filter area 32, the second blue filter area 33 and second red for interval
Filter area 31, the second green filter area 32, the black matrix 34 in the second blue filter area 33 thickness it is identical, and the value of thickness can
With preferably 1.15 microns, 1.2 microns, 1.25 microns, 1.3 microns, 1.35 microns, 1.4 microns, 1.45 microns, 1.5 microns.
In a kind of embodiment, the thickness in the first red filter area, the first green filter area and the first blue filter area is each
Differ.
Specifically, the maximum gauge of flatness layer 4 is 1.5 microns~2.0 microns.For the pixel fragment of floating R1/G1/B1
Difference, the maximum gauge of flatness layer 4 can preferably 1.5 microns, 1.6 microns, 1.7 microns, 1.8 microns, 1.9 microns, 2.0 microns.
Present invention also offers a kind of display device, including the colored filter of as above any one.
Because the angle of emergence of the light of above-mentioned colored filter is larger, side-looking angle colour contamination problem can be improved, and color is imitated
Fruit is preferable, therefore, the picture effect of the display device with above-mentioned colored filter is preferable.
As shown in figure 4, present invention also offers a kind of preparation method of colored filter, including:
Step S400:The first chromatic filter layer is formed on substrate 1, and the first chromatic filter layer includes the first red filter area
21, the first green filter area 22, the first blue filter area 23 and for be spaced the first red filter area 21, the first green filter area
22nd, the transparent resin layer 24 between the first blue filter area 23;
Step S410:Flatness layer 4 is formed on the first chromatic filter layer, the flatness layer 4 is flat away from the surface of substrate;
Step S420:The second chromatic filter layer is formed on flatness layer 4, the second chromatic filter layer includes the second red filter
Area 31, the second green filter area 32, the second blue filter area 33 and for be spaced the second red filter area 31, the second green filter
Black matrix 34 between area 32, the second blue filter area 33, and the first red filter area 21, the first green filter area 22, first
Blue filter area 23, the orthographic projection on substrate 1 of transparent resin layer 24 and the second red filter area 31, the second green filter area
32nd, the orthographic projection on substrate 1 of the second blue filter area 33, black matrix 34 is corresponded and overlapped, and the second red filter area
31st, the second green filter area 32, the second blue filter area 33 are identical with the thickness of black matrix 34.
In the preparation method of colored filter, by hierarchical design, the second chromatic filter layer of the side of substrate 1 is will be far from
Thickness be designed to consistent with the thickness of black matrix 34, the second chromatic filter layer is positioned close to the side of substrate 1, without the need for being put down
Smoothization, the angle of emergence of light is larger, can improve side-looking angle colour contamination problem, simplifies Making programme, is effectively saved and is fabricated to
This.By step S400, first chromatic filter layer, institute are initially formed using common process such as coating/exposure/developments in the side of substrate 1
R1/G1/B1 thickness in the first chromatic filter layer for using=(R2/G2/B2 films in the chromatic filter layer of R/G/B required film thicknesses-the second
It is thick), wherein, the R2/G2/B2 thickness=thickness of black matrix 34;Ensure that R2/G2/B2 thickness is constant, by adjusting R1/G1/B1 thickness
To control the colourity of colored filter;Then by step S410, one layer of flatness layer 4 is carried out on the first chromatic filter layer and is applied
Cloth, between 1.5 microns~2.0 microns of the maximum film thickness of flatness layer 4, with the pixel segment difference of floating R1/G1/B1;Finally by step
Rapid S420, prepares the second chromatic filter layer, the second red filter area 31, second in the second chromatic filter layer on flatness layer 4
Green filter area 32, the second blue filter area 33 are identical with the thickness of black matrix 34, and in 1.15 microns~1.5 microns.
In a kind of preferred embodiment, also include:
The first red filter area 21, the first green filter area 22, the first blue filter are formed on substrate 1 using patterning processes
Light area 23 and the transparent resin for being spaced the first red filter area 21, the first green filter area 22, the first blue filter area 23
Layer 24;And/or, form the second red filter area 31 on flatness layer 4 using patterning processes, the second green filter area 32, second
Blue filter area 33 and for be spaced the second red filter area 31, the second green filter area 32, the second blue filter area 33 it is black
Matrix 34.
Forming that the first chromatic filter layer and the second chromatic filter layer can be prepared using patterning processes on substrate 1 can also
The preparation technology of requirement is disclosure satisfy that using other.
In a kind of preferred embodiment, the ruddiness ripple that the first red filter area 21 and the second red filter area 31 can pass through
Long scope has overlap;And/or, the green wavelength that the first green filter area 22 can pass through with the second green filter area 32 has
Overlap;And/or, the blue wavelength range that the first blue filter area 23 can pass through with the second blue filter area 33 has overlap.
Different color blockings is used by the R/G/B of the first chromatic filter layer and the second chromatic filter layer, colour mixture, i.e. phase is carried out
When in new R/G/B is become using two kinds of R/G/B colour mixtures, i.e., need not developing new color blocking, not only less color resistance of color filter
Quantity, it is also possible to new green resistance can be reached by the collocation colour mixture of existing color blocking on the basis of new color blocking is not developed
Effect.
Obviously, those skilled in the art can carry out various changes and modification without deviating from this to the embodiment of the present invention
Bright spirit and scope.So, if these modifications of the present invention and modification belong to the claims in the present invention and its equivalent technologies
Within the scope of, then the present invention is also intended to comprising these changes and modification.
Claims (10)
1. a kind of colored filter, it is characterised in that include:
Substrate;
First chromatic filter layer, first chromatic filter layer include the first red filter area, the first green filter area, first is blue
Color filter area and transparent between the first red filter area, the first green filter area, the first blue filter area for being spaced
Resin bed;
Flatness layer, is covered on first chromatic filter layer, and the flatness layer is flat away from the surface of substrate;
Second chromatic filter layer, second chromatic filter layer include the second red filter area, the second green filter area, second is blue
Color filter area and the black square for being spaced between the second red filter area, the second green filter area, the second blue filter area
Battle array;
The just throwing of the first red filter area, the first green filter area, the first blue filter area, transparent resin layer on substrate
Shadow and the second red filter area, the second green filter area, the second blue filter area, a pair of orthographic projection one of the black matrix on substrate
Should and overlap;
The second red filter area, the second green filter area, the second blue filter area are identical with the thickness of black matrix.
2. colored filter according to claim 1, it is characterised in that the first red filter area and the second red filter
The red wavelength range that light area can pass through has overlap.
3. colored filter according to claim 1, it is characterised in that the first green filter area and the second green filter area
The green wavelength that can be passed through has overlap.
4. colored filter according to claim 1, it is characterised in that the first blue filter area and the second blue filter
The blue wavelength range that light area can pass through has overlap.
5. colored filter according to claim 1, it is characterised in that the thickness of second chromatic filter layer is 1.15
Micron~1.5 microns.
6. colored filter according to claim 1, it is characterised in that the first red filter area, the first green filter
The thickness in light area and the first blue filter area is different.
7. colored filter according to claim 6, it is characterised in that the maximum gauge of the flatness layer is 1.5 microns
~2.0 microns.
8. a kind of display device, it is characterised in that including the colored filter described in any one of claim 1~7.
9. a kind of preparation method of colored filter, it is characterised in that include:
The first chromatic filter layer is formed on substrate, first chromatic filter layer includes the first red filter area, and first is green
Filter area, the first blue filter area and for being spaced the first red filter area, the first green filter area, the first blue filter
Transparent resin layer between area;
Flatness layer is formed on first chromatic filter layer, the flatness layer is flat away from the surface of substrate;
The second chromatic filter layer is formed on the flatness layer, second chromatic filter layer includes the second red filter area, the
Two green filter areas, the second blue filter area and for being spaced the second red filter area, the second green filter area, second blue
Black matrix between color filter area, and it is the first red filter area, the first green filter area, the first blue filter area, transparent
Orthographic projection of the resin bed on substrate exists with the second red filter area, the second green filter area, the second blue filter area, black matrix
Orthographic projection on substrate is corresponded and overlapped, and the second red filter area, the second green filter area, the second blue filter
Area is identical with the thickness of black matrix.
10. preparation method according to claim 9, it is characterised in that the first red filter area and the second red filter
The red wavelength range that light area can pass through has overlap;And/or, the first green filter area can pass through with the second green filter area
Green wavelength have overlap;And/or, the blue light ripple that the first blue filter area can pass through with the second blue filter area
Long scope has overlap.
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019127780A1 (en) * | 2017-12-26 | 2019-07-04 | 深圳市华星光电技术有限公司 | Color film substrate, method for manufacturing same, and liquid crystal display panel |
US10394074B2 (en) | 2017-12-26 | 2019-08-27 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Color film substrate and method of manufacturing the same, liquid crystal panel |
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WO2019127780A1 (en) * | 2017-12-26 | 2019-07-04 | 深圳市华星光电技术有限公司 | Color film substrate, method for manufacturing same, and liquid crystal display panel |
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