CN105676332A - Color filter and fabrication method thereof - Google Patents
Color filter and fabrication method thereof Download PDFInfo
- Publication number
- CN105676332A CN105676332A CN201610263844.4A CN201610263844A CN105676332A CN 105676332 A CN105676332 A CN 105676332A CN 201610263844 A CN201610263844 A CN 201610263844A CN 105676332 A CN105676332 A CN 105676332A
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- module
- colored
- manufacture method
- black matrix
- red color
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- 238000000034 method Methods 0.000 title claims abstract description 50
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 39
- 239000011159 matrix material Substances 0.000 claims abstract description 51
- 239000000758 substrate Substances 0.000 claims abstract description 46
- 229920002120 photoresistant polymer Polymers 0.000 claims description 11
- 125000006850 spacer group Chemical group 0.000 claims description 3
- 239000011521 glass Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 239000007795 chemical reaction product Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000006059 cover glass Substances 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 238000001259 photo etching Methods 0.000 description 1
- 238000006552 photochemical reaction Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Filters (AREA)
Abstract
The invention relates to the technical field of display, and discloses a fabrication method of a color filter and the color filter. The color filter comprises a substrate (1). The fabrication method comprises the following steps: firstly, alignment marks are arranged on the substrate (1); secondly, color modules are arranged on the substrate (1) based on the alignment marks respectively; thirdly, black matrix light-resistance lines are arranged on the substrate (1) between the color modules and on the peripheries of the color modules. The fabrication method of the color filter comprises the steps: firstly, the color modules are arranged, and then the black matrix light-resistance lines are arranged. With the adoption of the technical scheme, the black matrix light-resistance lines are narrower in width, so that the resolution ratio of a terminal product is improved.
Description
Technical field
The present invention relates to Display Technique field, in particular it relates to the manufacture method of a kind of colored filter and colored filter.
Background technology
Colored filter is the optical filter of a kind of apparent color, can demonstrate corresponding color accurately, and and then present abundant color after light source is through colored module.
There is three kinds most basic coloured light in coloured light, their color is divided into redness, green and blue. These three coloured light mixes in varing proportions, almost can obtain all coloured light in nature, and these three coloured light has independence, and one of which primary colors can not be obtained by other primitive color light mixing. Being provided with color layer on the substrate of colored filter, color layer is the redness arranged by array, green and blue colored module. Every three colored modules can present HONGGUANG, green glow and blue light respectively after light source passes through, and every three colored modules form a complete display pixel. The ratio of the HONGGUANG, green glow and the blue light that pass through due to each pixel is different, and the color therefore synthesized also is different, thus forming colored display.
Specifically, in the processing technology of colored filter, generally first have to arrange black-matrix layer on substrate, this black-matrix layer mainly includes the photoresistance line adopting minus photoresist to make, this photoresistance line is arranged to matrix structure, not only play the effect dividing pixel, additionally it is possible to be filled between adjacent colored module to shut out the light; Then redness, green and blueness colour module it are respectively provided with again; Finally on substrate, cover other layer or overlay films etc. again.
Wherein, if the photoresistance line in black-matrix layer is wider, can cause that on the substrate of certain area, the area of pixel is less, therefore cause that the resolution of display is relatively low, therefore to improve the resolution of display, it is necessary to the width of black matrix" photoresistance line is narrow as best one can. Due to the restriction in current Technology and minus photoresist, it is difficult to reduce the width of black matrix" photoresistance line further so that the raising of the resolution of display is run into technical bottleneck.
Summary of the invention
It is an object of the invention to provide the manufacture method of a kind of colored filter, this manufacture method is capable of reducing the purpose of the width of black matrix" photoresistance line.
To achieve these goals, the present invention provides the manufacture method of a kind of colored filter, and this colored filter includes substrate, and wherein, this manufacture method includes
Step one: alignment mark is set on the substrate;
Step 2: be respectively provided with colored module on the substrate according to described alignment mark;
Step 3: between described colored module and around described substrate on black matrix" photoresistance line is set.
Preferably, described black matrix" photoresistance line is made up of eurymeric photoresist.
Preferably, described colored module includes red color module, green colored module and blueness colour module.
Preferably, in step 2, set gradually according to the order of red color module, green colored module and blueness colour module.
Preferably, the shape of cross section of described red color module, green colored module and blueness colour module can present up-narrow and down-wide trapezoidal shape.
Preferably, in step 2, the process that when arranging red color module, green colored module and blueness colour module respectively corresponding red color module, green colored module and blueness colour module can be exposed and develop.
Preferably, the shape of cross section of described black matrix" photoresistance line can present reverse trapezoid shape wide at the top and narrow at the bottom.
Preferably, described manufacture method also includes
Step 4: smooth cover layer is set on the substrate;
Step 5: conductive layer is set on described smooth cover layer;
Step 6: spacer is set on described conductive layer.
It is a further object to provide a kind of colored filter, described colored filter is for obtain according to manufacture method of the present invention.
Preferably, described colored filter includes substrate, described substrate is provided with red color module, green colored module and blueness colour module, described red color module, between green colored module and blueness colour module and be provided around black matrix" photoresistance line
Wherein, the shape of cross section of described red color module, green colored module and blueness colour module can present up-narrow and down-wide trapezoidal shape, and the shape of cross section of described black matrix" photoresistance line can present reverse trapezoid shape wide at the top and narrow at the bottom.
The manufacture method of the colored filter of the present invention first arranges colored module, then arranges black matrix" photoresistance line again. Pass through technique scheme, it is possible to the width making black matrix" photoresistance line is narrower, thus improving the resolution of end product.
Other features and advantages of the present invention will be described in detail in detailed description of the invention part subsequently.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and constitutes the part of description, is used for explaining the present invention, but is not intended that limitation of the present invention together with detailed description below. In the accompanying drawings:
Fig. 1 is the schematic diagram of the colored filter that the manufacture method according to prior art manufactures, and wherein merely illustrates black matrix" photoresistance line, red color module, green colored module and blueness colour module;
Fig. 2 is the schematic diagram of the colored filter that the manufacture method according to the application manufactures, and wherein merely illustrates black matrix" photoresistance line, red color module, green colored module and blueness colour module.
Description of reference numerals
1 substrate; 2 red color modules; 3 green colored modules; 4 blue colored modules; 5 black matrix" photoresistance lines.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail. It should be appreciated that detailed description of the invention described herein is merely to illustrate and explains the present invention, it is not limited to the present invention.
In the present invention, when not making contrary explanation, the noun of locality of use suitably should be explained in conjunction with the direction shown in accompanying drawing and the direction in practical application.
Colored filter is to be processed on the basis of substrate and make. Normally, this substrate 1 is glass substrate, first painting black photoresistance on the glass substrate, the surface of this black photoresistance cover glass substrate, and this black photoresistance generally adopts minus photoresist, remove unnecessary part again through techniques such as exposure imagings, and then leave black matrix" photoresistance line on the glass substrate, this photoresistance line surrounds the shape of matrix, also arranges alignedly according to ranks in the region of these rectangles. Then red photoresistance it is coated on the glass substrate, the surface of this redness photoresistance cover glass substrate and black matrix" photoresistance line, and this redness photoresistance generally adopts negative photoresist, remove the unnecessary part of red photoresistance again through the technique such as exposure imaging and in the rectangular area that the photoresistance line of black matrix" is defined the red color module of Formation rule distribution. In like manner, in the rectangular area that the photoresistance line of black matrix" is defined, form green colored module and the blueness colour module of multiple spaced and regular distribution respectively. Wherein red color module, green colored module and blueness colour module number are equal and regular be distributed spaced reciprocally equably.
According to mentioned above it can be seen that the photoresistance line of this black plays the effect separating red, green and blueness colour module, this redness, green and blueness colour module are arranged in the gap between adjacent black matrix" photoresistance line. Additionally, black matrix" photoresistance line can also play the effect that the colored module on whole glass substrate is planned and divided.
The present invention provides the manufacture method of a kind of colored filter, and this colored filter includes substrate 1, and wherein, this manufacture method includes
Step one: alignment mark is set on described substrate 1;
Step 2: be respectively provided with colored module on described substrate 1 according to described alignment mark;
Step 3: between described colored module and around described substrate 1 on black matrix" photoresistance line 5 is set.
Manufacturing method according to the invention, arranges alignment mark first on substrate 1, plays the effect that whole substrate 1 carries out precise positioning, then first arranges colored module and then arranges the photoresistance line 5 of black matrix".
So, size and the spacing of colored module can be set according to the needs to pixel size and resolution height, then between adjacent colored module and be positioned at the photoresistance line 5 of arranged outside black of colored module at edge, so can effectively limit the live width of black matrix" photoresistance line 5, and guarantee the area of colored module, to improve the resolution of end product.
It should be noted that owing to black matrix" photoresistance line 5 is arranged after colored module, therefore first arrange alignment mark here to play the effect of precise positioning, this alignment mark can adopt the material that will not be subject to subsequent handling impact and decompose.
It addition, colored module and arranging of black matrix" photoresistance line can adopt the process being applicable to the present invention in prior art, repeat no more herein.
The manufacture method of the colored filter of the present invention first arranges colored module, then arranges black matrix" photoresistance line again. Pass through technique scheme, it is possible to the width making black matrix" photoresistance line is narrower, thus improving the resolution of end product.
Preferably, described colored module includes red color module 2, green colored module 3 and blueness colour module 4. Preferably, in step 2, set gradually according to the order of red color module 2, green colored module 3 and blueness colour module 4.
The technique of the photoetching being typically used in the process of the colored module of processing and black matrix" photoresistance line described above, by photo-chemical reaction principle and chemistry, physical etchings method, utilize mask, the operation such as exposed and developed to obtain required figure on photoresist layer and to present on the glass substrate. Preferably, in step 2, need when arranging red color module 2, green colored module 3 and blueness colour module 4 respectively corresponding red color photoresistance, green chromatic photoresist and blue chromatic photoresist to be exposed and the manufacturing process such as development.
And photoresist mainly includes eurymeric photoresistance and minus photoresistance two kinds. Eurymeric photoresistance is exactly that the part that is irradiated by light can be got rid of by the chemicals in developed processing procedure, and the part not exposing light then will not be removed by developed liquid, therefore can retain on the glass substrate. Minus photoresistance is then contrary, and the minus photoresistance part being irradiated by light will not remove by the chemicals in developed processing procedure, and the part not being irradiated by light then can be removed by the chemicals in developed processing procedure.
Therefore manufacturing method according to the invention, black matrix" photoresistance line 5 is preferably made up of eurymeric photoresist.
In the manufacture process of colored filter, consideration for the stability of the module arranged on substrate, first being arranged on the module on substrate (colored module or black matrix" photoresistance line) and be usually formed as up-small and down-big trapezoidal shape, namely shape of cross section can present up-narrow and down-wide trapezoidal shape. Such as, in the schematic diagram of the cross section of the existing colored filter shown in Fig. 1, show red color module 2, green colored module 3, blue colored module 4 and black matrix" photoresistance line 5, wherein black matrix" photoresistance line 5 is first arranged, therefore the cross section of photoresistance line is up-small and down-big trapezoidal shape, and the red color module 2 then arranged, green colored module 3, blue colored module 4 are then the up big and down small reverse trapezoid shape matched with the gap of adjacent black matrix" photoresistance line 5. And red color module 2, green colored module 3, blue colored module 4 to be generally set above the height of black matrix" photoresistance line 5, and red color module 2, green colored module 3, blue colored module 4 exceed the part of black matrix" photoresistance line 5 after carrying out baking-curing manufacturing process, boss portion can be formed, and after light source passes through, due to the reflection of light and refraction effect and then be likely to that the flaw that color is uneven occurs on end product.
Manufacturing method according to the invention, described red color module 2, green colored module 3 and blueness colour module 4 are first arranged on substrate, preferably, the shape of cross section of described red color module 2, green colored module 3 and blueness colour module 4 can present up-narrow and down-wide trapezoidal shape. The black matrix" photoresistance line 5 then arranged is then the shape matched with the gap between adjacent red color module 2, green colored module 3, blue colored module 4, preferably, the cross-sectional area of described photoresistance line 5 is gradually reduced from top to bottom, and the height of photoresistance line 5 is less than or equal to red, green and blueness colour module height.
The method to set up of the main red color module 2 to colored filter, green colored module 3, blue colored module 4 and black matrix" photoresistance line 5 is described above, colored filter also includes other parts structure, these parts be all those skilled in the art it is conceivable that, and the method to set up of these parts is also that those skilled in the art are it is also envisioned that repeat no more herein.Such as, in order to complete colored filter, it is preferable that described manufacture method also includes
Step 4: smooth cover layer is set on described substrate 1;
Step 5: conductive layer is set on described smooth cover layer;
Step 6: spacer is set on described conductive layer.
According to described above, the present invention also provides for a kind of colored filter, and described colored filter is for obtain according to manufacture method of the present invention. The principle utilizing the colored filter that the manufacture method of the present invention obtains is described in detail above, repeats no more herein. This colored filter obtained by the manufacture method of the present invention includes substrate 1, wherein, described substrate 1 is provided with red color module 2, green colored module 3 and blueness colour module 4, described red color module 2, between green colored module 3 and blueness colour module 4 and be provided around black matrix" photoresistance line 5
Wherein, the shape of cross section of described red color module 2, green colored module 3 and blueness colour module 4 can present up-narrow and down-wide trapezoidal shape,
The shape of cross section of described black matrix" photoresistance line is reverse trapezoid shape wide at the top and narrow at the bottom.
The preferred embodiment of the present invention is described in detail above in association with accompanying drawing; but; the present invention is not limited to the detail in above-mentioned embodiment; in the technology concept of the present invention; technical scheme can being carried out multiple simple variant, these simple variant belong to protection scope of the present invention.
It is further to note that, each concrete technical characteristic described in above-mentioned detailed description of the invention, in reconcilable situation, it is possible to be combined by any suitable mode, in order to avoid unnecessary repetition, various possible compound modes are no longer illustrated by the present invention separately.
Additionally, can also carry out combination in any between the various different embodiment of the present invention, as long as it is without prejudice to the thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (10)
1. a manufacture method for colored filter, this colored filter includes substrate (1), it is characterised in that this manufacture method includes
Step one: alignment mark is set on described substrate (1);
Step 2: be respectively provided with colored module on described substrate (1) according to described alignment mark;
Step 3: between described colored module and around described substrate (1) on black matrix" photoresistance line (5) is set.
2. manufacture method according to claim 1, it is characterised in that described black matrix" photoresistance line (5) is made up of eurymeric photoresist.
3. manufacture method according to claim 1, it is characterised in that described colored module includes red color module (2), green colored module (3) and blueness colour module (4).
4. manufacture method according to claim 3, it is characterised in that in step 2, sets gradually according to the order of red color module (2), green colored module (3) and blueness colour module (4).
5. manufacture method according to claim 3, it is characterised in that the shape of cross section of described red color module (2), green colored module (3) and blueness colour module (4) can present up-narrow and down-wide trapezoidal shape.
6. the manufacture method according to any one in claim 3-5, it is characterized in that, in step 2, the process that when arranging red color module (2), green colored module (3) and blueness colour module (4) respectively corresponding red color module (2), green colored module (3) and blueness colour module (4) can be exposed and develop.
7. manufacture method according to claim 1, it is characterised in that the shape of cross section of described black matrix" photoresistance line can present reverse trapezoid shape wide at the top and narrow at the bottom.
8. manufacture method according to claim 1, it is characterised in that described manufacture method also includes
Step 4: smooth cover layer is set on described substrate (1);
Step 5: conductive layer is set on described smooth cover layer;
Step 6: spacer is set on described conductive layer.
9. a colored filter, it is characterised in that described colored filter is that the manufacture method according to any one in claim 1-8 obtains.
10. colored filter according to claim 9, it is characterized in that, described colored filter includes substrate (1), described substrate (1) is provided with red color module (2), green colored module (3) and blueness colour module (4), described red color module (2), between green colored module (3) and blueness colour module (4), black matrix" photoresistance line can be provided with surrounding
Wherein, the shape of cross section of described red color module (2), green colored module (3) and blueness colour module (4) can present up-narrow and down-wide trapezoidal shape, and the shape of cross section of described black matrix" photoresistance line can present reverse trapezoid shape wide at the top and narrow at the bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610263844.4A CN105676332A (en) | 2016-04-26 | 2016-04-26 | Color filter and fabrication method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610263844.4A CN105676332A (en) | 2016-04-26 | 2016-04-26 | Color filter and fabrication method thereof |
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| CN105676332A true CN105676332A (en) | 2016-06-15 |
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| CN201610263844.4A Pending CN105676332A (en) | 2016-04-26 | 2016-04-26 | Color filter and fabrication method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113327521A (en) * | 2020-02-28 | 2021-08-31 | 成都辰显光电有限公司 | Display panel, preparation method of display panel and color conversion structure |
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| CN102645690A (en) * | 2011-05-19 | 2012-08-22 | 京东方科技集团股份有限公司 | Color filter and manufacturing method thereof |
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| CN1501129A (en) * | 2002-11-14 | 2004-06-02 | ���ǵ�����ʽ���� | Panel for liquid crystal display and manufacturing method thereof |
| CN1523423A (en) * | 2003-02-17 | 2004-08-25 | 统宝光电股份有限公司 | Method for manufacturing black matrix and color filter |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113327521A (en) * | 2020-02-28 | 2021-08-31 | 成都辰显光电有限公司 | Display panel, preparation method of display panel and color conversion structure |
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