WO2015035819A1 - 彩膜基板的制备方法 - Google Patents
彩膜基板的制备方法 Download PDFInfo
- Publication number
- WO2015035819A1 WO2015035819A1 PCT/CN2014/081222 CN2014081222W WO2015035819A1 WO 2015035819 A1 WO2015035819 A1 WO 2015035819A1 CN 2014081222 W CN2014081222 W CN 2014081222W WO 2015035819 A1 WO2015035819 A1 WO 2015035819A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- substrate
- photoresist
- curing
- preparation
- photoresist layer
- Prior art date
Links
- 239000000758 substrate Substances 0.000 title claims abstract description 113
- 238000000034 method Methods 0.000 title claims abstract description 62
- 238000004519 manufacturing process Methods 0.000 title abstract description 11
- 229920002120 photoresistant polymer Polymers 0.000 claims abstract description 124
- 238000001723 curing Methods 0.000 claims abstract description 108
- 239000010410 layer Substances 0.000 claims abstract description 64
- 239000011159 matrix material Substances 0.000 claims abstract description 21
- 239000000463 material Substances 0.000 claims abstract description 17
- 239000011241 protective layer Substances 0.000 claims abstract description 13
- 238000003848 UV Light-Curing Methods 0.000 claims description 43
- 125000006850 spacer group Chemical group 0.000 claims description 22
- 239000003504 photosensitizing agent Substances 0.000 claims description 8
- 238000000059 patterning Methods 0.000 claims description 6
- 230000001678 irradiating effect Effects 0.000 claims description 4
- 238000000137 annealing Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims 22
- 239000003292 glue Substances 0.000 claims 6
- 238000000016 photochemical curing Methods 0.000 abstract description 5
- 238000000151 deposition Methods 0.000 abstract description 4
- 230000005855 radiation Effects 0.000 abstract 1
- 238000004904 shortening Methods 0.000 abstract 1
- 238000000576 coating method Methods 0.000 description 9
- 239000003999 initiator Substances 0.000 description 9
- 239000011248 coating agent Substances 0.000 description 8
- 238000001029 thermal curing Methods 0.000 description 7
- 239000000853 adhesive Substances 0.000 description 6
- 230000001070 adhesive effect Effects 0.000 description 6
- 238000011417 postcuring Methods 0.000 description 5
- 238000013036 cure process Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 238000013007 heat curing Methods 0.000 description 2
- 238000000206 photolithography Methods 0.000 description 2
- KWVGIHKZDCUPEU-UHFFFAOYSA-N 2,2-dimethoxy-2-phenylacetophenone Chemical compound C=1C=CC=CC=1C(OC)(OC)C(=O)C1=CC=CC=C1 KWVGIHKZDCUPEU-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- KTWOOEGAPBSYNW-UHFFFAOYSA-N ferrocene Chemical class [Fe+2].C=1C=C[CH-]C=1.C=1C=C[CH-]C=1 KTWOOEGAPBSYNW-UHFFFAOYSA-N 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
- 238000010187 selection method Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- YRHRIQCWCFGUEQ-UHFFFAOYSA-N thioxanthen-9-one Chemical compound C1=CC=C2C(=O)C3=CC=CC=C3SC2=C1 YRHRIQCWCFGUEQ-UHFFFAOYSA-N 0.000 description 1
- 238000001291 vacuum drying Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/0005—Production of optical devices or components in so far as characterised by the lithographic processes or materials used therefor
- G03F7/0007—Filters, e.g. additive colour filters; Components for display devices
-
- 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
-
- 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
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/20—Exposure; Apparatus therefor
- G03F7/2002—Exposure; Apparatus therefor with visible light or UV light, through an original having an opaque pattern on a transparent support, e.g. film printing, projection printing; by reflection of visible or UV light from an original such as a printed image
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/20—Exposure; Apparatus therefor
- G03F7/2022—Multi-step exposure, e.g. hybrid; backside exposure; blanket exposure, e.g. for image reversal; edge exposure, e.g. for edge bead removal; corrective exposure
- G03F7/2024—Multi-step exposure, e.g. hybrid; backside exposure; blanket exposure, e.g. for image reversal; edge exposure, e.g. for edge bead removal; corrective exposure of the already developed image
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/20—Exposure; Apparatus therefor
- G03F7/2022—Multi-step exposure, e.g. hybrid; backside exposure; blanket exposure, e.g. for image reversal; edge exposure, e.g. for edge bead removal; corrective exposure
- G03F7/2032—Simultaneous exposure of the front side and the backside
Definitions
- Embodiments of the present invention relate to a method of preparing a color filter substrate. Background technique
- BM black matrix
- R, G, B red, green, blue
- PS cylindrical spacers
- the existing back exposure technology can strengthen the curing of the PR of the lower part of the BM to a certain extent to maintain the inverted trapezoidal structure formed after development, but still deform after hot baking. , which causes the BM line width to widen, so the problem of widening the BM line width cannot be well solved.
- Embodiments of the present invention provide a method of fabricating a color filter substrate which can suppress a broadening of a line width of a BM and can shorten a curing time.
- the embodiment of the present invention provides a method for preparing a color filter substrate.
- the method may include: coating a photoresist on a substrate to form a photoresist layer, and exposing and developing the photoresist layer to form a pattern and ultraviolet curing.
- forming the photoresist layer and ultraviolet curing may include: the photoresist layer is a black matrix photoresist layer, and after forming the pattern of the black matrix, ultraviolet light is irradiated from the front and back surfaces of the substrate, respectively.
- forming the photoresist layer and curing the photoresist layer may include: the photoresist layer is a red photoresist layer, and after forming the pattern of the red sub-pixels, respectively, the ultraviolet light is irradiated from the front and back surfaces of the substrate. Shoot.
- patterning the photoresist layer and UV curing may include: the photoresist layer is a green photoresist layer, and after forming the pattern of the green sub-pixels, ultraviolet light is irradiated from the front and back surfaces of the substrate, respectively.
- patterning the photoresist layer and ultraviolet curing may include: the photoresist layer is a blue photoresist layer, and after forming the pattern of the blue sub-pixels, ultraviolet light is irradiated from the front and back surfaces of the substrate, respectively.
- forming the photoresist layer and UV curing may include: the photoresist layer is a photoresist layer of the pillar spacer, and after forming the pattern of the pillar spacers, respectively, facing the substrate from the front and back of the substrate UV light.
- the UV curing can be carried out in a belt type ultraviolet curing machine or an oven type ultraviolet curing machine.
- the oven-type ultraviolet curing machine can be configured in a multi-layered configuration with at least one ultraviolet light source disposed between each layer.
- a photoresist sensitive to i-rays of ultraviolet light may be added to the photoresist.
- a sensitizer sensitive to the h-line or g-line of ultraviolet light may be added to the photoresist.
- An embodiment of the present invention further provides a method for preparing a color filter substrate, which may include: coating a photocurable material on a substrate to form a protective layer, and UV curing.
- the ultraviolet curing may include: performing ultraviolet light irradiation from the front and back surfaces of the substrate, respectively.
- the UV curing can be carried out in a belt type ultraviolet curing machine or an oven type ultraviolet curing machine.
- the oven-type ultraviolet curing machine can be configured in a multi-layered configuration with at least one ultraviolet light source disposed between each layer.
- a sensitizer sensitive to i-line of ultraviolet light may be added to the photocurable material.
- a photosensitive agent sensitive to the h-line or g-line of ultraviolet light may be added to the photocurable material.
- An embodiment of the present invention further provides a method for preparing a color filter substrate.
- the method may include: coating a black matrix photoresist layer on a substrate to form a black matrix photoresist layer, and exposing and developing to form a black matrix pattern and ultraviolet light. Curing; coating a red photoresist on the substrate to form a red photoresist layer, exposing and developing to form a red sub-pixel pattern and UV curing; coating a green photoresist on the substrate to form a green photoresist layer, after exposure and development Forming a green sub-pixel pattern and UV curing; coating a blue photoresist on the substrate to form a blue photoresist layer, exposing and developing to form a blue sub-pixel pattern and UV curing.
- the method may further comprise: applying a photocurable material to the substrate to form a protective layer and UV curing.
- the method may further include: coating a photoresist layer of the pillar spacer photoresist on the substrate to form a photoresist layer of the pillar spacer, and exposing and developing to form a column spacer pattern and UV curing.
- the method can further include: annealing the substrate formed with the black matrix, red, green, blue sub-pixels, the protective layer, and the pillar spacer.
- the ultraviolet curing may be: ultraviolet light irradiation from the front and back surfaces of the substrate, respectively.
- the UV curing can be carried out in a belt type ultraviolet curing machine or an oven type ultraviolet curing machine.
- the oven-type ultraviolet curing machine can be configured in a multi-layered configuration with at least one ultraviolet light source disposed between each layer.
- at least one of a black matrix photoresist, a red photoresist, a green photoresist, a blue photoresist, a photocurable material, and a pillar spacer photoresist may be added Ultraviolet light i-line sensitive sensitizer.
- At least one of a black matrix photoresist, a red photoresist, a green photoresist, a blue photoresist, a photocurable material, and a pillar spacer photoresist may be added A sensitizer sensitive to the h-line or g-line of ultraviolet light.
- the substrate is irradiated with ultraviolet light. Since the ultraviolet curing method of the present invention does not cause the photoresist to soften and collapse, the inverted trapezoidal structure of the BM can be maintained, and the line width of the BM can be suppressed from increasing, so that the requirements for the narrow line width of the BM are adapted to the high resolution display. It is also possible to increase the aperture ratio.
- the embodiment of the invention changes the thermal curing method used in the post-curing process to the ultraviolet curing method, which not only shortens the time of the photolithography process, but also ensures that the color film substrate is not subjected to various volatile substances during production. The pollution can better ensure the quality of the color film substrate.
- FIG. 1 is a schematic cross-sectional view of a BM after development etching and before post-curing
- FIG. 2 is a cross-sectional structural view of the BM after a heat-cured post-curing process
- FIG. 3 is a conveyor belt type according to Embodiment 1 of the present invention.
- 4 is a schematic structural view of a UV curing machine;
- FIG. 4 is a partial structural view of a substrate irradiated with ultraviolet light according to Embodiment 1 of the present invention;
- Figure 5 is a schematic view showing the structure of an oven type ultraviolet curing machine according to a second embodiment of the present invention
- Figure 6 is a schematic cross-sectional view showing the BM according to the embodiment of the present invention after undergoing an ultraviolet curing process.
- UV curing technology Due to its fast and non-polluting characteristics, UV curing technology has excellent film forming properties after curing, and has been widely used in coatings, semiconductors and other industries.
- the embodiment of the present invention changes the conventional post-cure process from the thermal curing method to the ultraviolet curing method, and the manufacturing process of the BM and RGB sub-pixels, etc., can make the line widths more uniform and can be suppressed by the ultraviolet curing method.
- the line width of the BM becomes larger, In order to effectively reduce the light leakage and color mixing caused by the uneven line width, the resolution is improved.
- Step 1 Form a layer of BM photoresist on the substrate, and form a pattern of BM through a patterning process, and then irradiate the substrate with the substrate facing the front and back of the substrate formed with the BM to complete the curing process of the BM.
- the curing process can be carried out in an ultraviolet curing machine, such as a belt type ultraviolet curing machine or a oven type ultraviolet curing machine, as described in the following detailed description.
- Both sides of the substrate are exposed to ultraviolet light, which can suppress the photoresist effect of the photoresist on the single-sided ultraviolet light, increase the energy of the ultraviolet light to the inside of the photoresist, and ensure the color film substrate after UV curing. It has physicochemical properties comparable to conventional heat-cured color film substrates.
- Step 2 depositing the photoresist of the R, G, and B sub-pixels on the substrate, and forming a pattern of the corresponding R, G, and B sub-pixels by patterning, and then performing ultraviolet light on the substrate from the front and back of the substrate respectively. Irradiation, complete the curing process of R, G, B sub-pixels.
- the method can also include:
- Step 3 depositing a photoresist of the column spacer on the substrate, and forming a pattern of the column spacer by exposure, development, and the like, and then irradiating the substrate with the ultraviolet light from both the front and the back of the substrate. The curing process of the cylindrical spacer is completed.
- the method may further include: after coating the photocurable material on the substrate to form a protective layer (OC), respectively, irradiating the substrate with the ultraviolet light from the front and back surfaces of the substrate .
- a protective layer OC
- a protective layer is formed by substrate cleaning, application of a photocurable material, and soft baking, and then respectively from the front and back sides of the substrate.
- the substrate is irradiated with ultraviolet light.
- the OC fabrication process has both a photocuring method and a thermal curing method, which mainly depends on the material of the protective layer used.
- the material of the protective layer can be divided into two categories: one is thermosetting OC adhesive, the initiator used is a heat sensitive initiator, which is not sensitive to ultraviolet light, and cannot be used for photocuring; the other is photocurable OC adhesive.
- the initiator used is a photosensitive initiator, and the photosensitive initiator can be either photocured or thermally cured.
- the photocurable OC adhesive is mainly designed for photocuring OC process. Generally, the photocurable OC adhesive does not use heat. Curing method. In the conventional TFT-LCD, the OC is mainly formed by thermal curing in the color film substrate. However, since the photocurable OC adhesive has been successfully developed, as long as the ultraviolet curing machine and the photocuring OC adhesive are introduced, the color film is formed.
- the UV curing method can be used for the OC curing process in the substrate.
- the method may further include: annealing the substrate formed with the black matrix, the red, green, and blue sub-pixels, the protective layer, and the column spacer to eliminate the R, G, and B sub-pixels, and the inside of the PS Thermal stress ensures its normal shape; in addition, the photoresist can be completely cured to improve the high temperature resistance of the photoresist.
- the ultraviolet curing method of the embodiment does not cause the PR softening to collapse, the inverted trapezoidal structure of the BM is maintained, and the line width of the BM can be suppressed from increasing, thereby adapting to the requirement of the BD narrow line width of the high resolution display screen, and Can shorten the curing time.
- Example 1 UV curing using a conveyor belt UV curing machine
- a BM photoresist (model BK-410) produced by DONGWOO FINE-CHEM is taken as an example to illustrate the method and principle of ultraviolet curing used in the embodiment of the present invention.
- the substrate is subjected to vacuum drying and hot-drying, and then passed through an existing exposure machine.
- the ultraviolet light emitted by the exposure machine after the alignment is irradiated to the front side of the substrate for a short time, the negative photoresist
- the photosensitive initiator in the decomposition is decomposed by the action of ultraviolet light to generate activated radicals, which are not dissolved by the developer after the crosslinking reaction of the photoresist, and the desired pattern is formed.
- the exposure process is short-lived (usually 5 ⁇ 6s) and the blocking effect of the photoresist on the light.
- the photosensitive initiator in the photoresist (especially near the substrate) will not be completely consumed, and the remaining light
- the photosensitive initiator in the barrier gel provides active radicals for the post-cure process after development, ensuring that the post-cure process proceeds.
- Most of the photosensitizers in the photoresist can be decomposed under the irradiation of ultraviolet light or decomposed under the action of heat. Therefore, the post-cure process can be either a thermal curing process or an ultraviolet curing process. .
- the ultraviolet curing method described herein can use a conveyor type ultraviolet curing machine 7 as shown in FIG.
- the infrared heating unit 3 disposed at the inlet unit preheats the substrate 2 and planarizes the film surface, and the substrate 2 after infrared preheating passes through both sides of the front and back sides.
- the transfer device 5 irradiated with ultraviolet light 4 can be cured by ultraviolet light.
- a schematic diagram of a partial structure in which ultraviolet light irradiates the substrate 2 is shown in FIG.
- the conveying device 5 can control the conveying speed of the substrate and the uniformity of the conveying speed. By controlling the transfer speed of the UV curing machine, the time of UV curing can be controlled to control the degree of curing.
- the substrate 2 is irradiated by the ultraviolet light emitted by the ultraviolet light source 6 on both the front and the back of the substrate, thereby suppressing the photoresist effect of the photoresist on the ultraviolet light when the single-sided ultraviolet light is irradiated, and increasing the ultraviolet light to the inside of the photoresist.
- Energy indeed The UV-cured color filter substrate has physicochemical properties comparable to conventional heat-cured color film substrates.
- the color film substrate is cured by ultraviolet light full exposure, and the curing time can be adjusted according to the curing effect.
- the length of the ultraviolet curing section is the length of the ultraviolet light irradiation region, which corresponds to the length of the conveyor belt of the ultraviolet light irradiation zone in the transfer type ultraviolet curing machine.
- Example 2 UV curing using an oven type UV curing machine
- the same BM photoresist is used as in the first embodiment.
- the development etching of the BM in the color filter substrate and the previous process are the same as in the first embodiment, and the full exposure by ultraviolet light is still used after the development.
- This embodiment uses an oven type ultraviolet curing machine 8 similar to the existing baking oven shown in Fig. 5.
- the curing machine 8 can be provided with a multi-layer structure.
- at least one ultraviolet light source 6 is disposed between each layer, and the front and back sides of the substrate are respectively irradiated with ultraviolet light. Due to the fast cleaning of the UV full exposure method and the short curing time, it does not require too many segments under the premise of satisfying the production rhythm.
- Fig. 5 schematically shows the structure and curing method of the oven type ultraviolet curing machine by taking a four-layer structure as an example, but the embodiment of the invention is obviously not limited thereto.
- Example 3 UV curing using a modified photoresist
- the same BM photoresist is used as in the first embodiment.
- the curing equipment for UV curing can be selected from a belt type UV curing machine or an oven type UV curing machine.
- This embodiment improves the curing agent composition and improves the composition of the photoresist for the photoresist.
- the thioxanthone can be used, and the g-sensitive sensitizer can be selected from the ferrocene salt, thereby ensuring sufficient photosensitizing agent I to perform ultraviolet full-exposure curing after exposure to the exposure machine.
- FIG. 6 is a schematic cross-sectional view of a BM after undergoing an ultraviolet curing process according to an embodiment of the present invention. Since the UV curing method does not cause the photoresist to soften and collapse, the inverted trapezoidal structure of the BM can be maintained, and the line width of the BM can be suppressed from increasing, so that the requirements for the narrow line width of the BM can be adapted to the high resolution display. Increase the aperture ratio.
- the exposure process after the soft baking in the process of producing the color film substrate is to use the ultraviolet light to crosslink the photoresist to achieve the purpose of curing. Therefore, the present invention changes the thermal curing method used in the post-curing process to ultraviolet curing.
- the method not only shortens the time of the photolithography process, but also ensures that the color film substrate is not contaminated by various volatile substances during the production, and the quality of the color film substrate can be better ensured.
- the UV curing method does not destroy the inverted trapezoidal structure formed by the BM after development, so that the inverted ladder structure is maintained, and the widening of the BM line width is suppressed, which is advantageous for making a narrow line width BM.
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- General Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
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Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US14/429,443 US9760001B2 (en) | 2013-09-10 | 2014-06-30 | Manufacturing method of color filter substrate |
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CN201310409241.7A CN104423088B (zh) | 2013-09-10 | 2013-09-10 | 一种彩膜基板的制备方法 |
CN201310409241.7 | 2013-09-10 |
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WO2015035819A1 true WO2015035819A1 (zh) | 2015-03-19 |
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US (1) | US9760001B2 (zh) |
CN (1) | CN104423088B (zh) |
WO (1) | WO2015035819A1 (zh) |
Families Citing this family (6)
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CN104880862B (zh) * | 2015-06-26 | 2018-03-16 | 京东方科技集团股份有限公司 | 一种彩膜基板的制备方法、显示面板、显示装置 |
CN106249452A (zh) * | 2016-10-11 | 2016-12-21 | 武汉华星光电技术有限公司 | 一种cf基板的制造方法及uv固化装置、cf基板生产线 |
CN107102516B (zh) * | 2017-03-24 | 2021-02-26 | 惠科股份有限公司 | 基板制程、基板、显示面板及显示装置 |
CN107065292A (zh) * | 2017-06-12 | 2017-08-18 | 京东方科技集团股份有限公司 | 黑矩阵及其制备方法和系统、显示基板和显示装置 |
CN108919550A (zh) * | 2018-07-18 | 2018-11-30 | 深圳市华星光电技术有限公司 | 彩膜基板及其制作方法、液晶面板 |
CN111352316B (zh) * | 2020-04-15 | 2024-04-12 | Tcl华星光电技术有限公司 | 光阻漂白与烘烤方法及其装置 |
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US9760001B2 (en) | 2017-09-12 |
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CN104423088A (zh) | 2015-03-18 |
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