WO2019033637A1 - 显示面板及其制造方法 - Google Patents

显示面板及其制造方法 Download PDF

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Publication number
WO2019033637A1
WO2019033637A1 PCT/CN2017/115865 CN2017115865W WO2019033637A1 WO 2019033637 A1 WO2019033637 A1 WO 2019033637A1 CN 2017115865 W CN2017115865 W CN 2017115865W WO 2019033637 A1 WO2019033637 A1 WO 2019033637A1
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WIPO (PCT)
Prior art keywords
substrate
display panel
manufacturing
panel according
monomer
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Ceased
Application number
PCT/CN2017/115865
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English (en)
French (fr)
Inventor
陈猷仁
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HKC Co Ltd
Chongqing HKC Optoelectronics Technology Co Ltd
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HKC Co Ltd
Chongqing HKC Optoelectronics Technology Co Ltd
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Priority to US16/639,505 priority Critical patent/US11404452B2/en
Publication of WO2019033637A1 publication Critical patent/WO2019033637A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • G02F1/1339—Gaskets; Spacers; Sealing of cells
    • G02F1/13398—Spacer materials; Spacer properties
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
    • H10D86/00—Integrated devices formed in or on insulating or conducting substrates, e.g. formed in silicon-on-insulator [SOI] substrates or on stainless steel or glass substrates
    • H10D86/01—Manufacture or treatment
    • H10D86/021—Manufacture or treatment of multiple TFTs
    • H10D86/0241—Manufacture or treatment of multiple TFTs using liquid deposition, e.g. printing
    • 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
    • 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
    • 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
    • G02F1/1339—Gaskets; Spacers; Sealing of cells
    • 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
    • G02F1/1339—Gaskets; Spacers; Sealing of cells
    • G02F1/13394—Gaskets; Spacers; Sealing of cells spacers regularly patterned on the cell subtrate, e.g. walls, pillars

Definitions

  • the present application relates to the field of display technologies, and in particular, to a display panel and a method of fabricating the same.
  • the display has many advantages such as thin body, power saving, no radiation, and has been widely used.
  • Most of the displays on the market today are backlight-type displays, which include a display panel and a backlight module.
  • the working principle of the display panel is to place liquid crystal molecules in two parallel substrates, and apply driving voltages on the two substrates to control the rotation direction of the liquid crystal molecules to refract the light of the backlight module to generate a picture.
  • the thin film transistor liquid crystal display includes a display panel and a backlight module, and the display panel includes a color filter substrate (CF Substrate, also referred to as a color filter substrate) and a thin film transistor array substrate (Thin Film Transistor Substrate, TFT Substrate).
  • CF Substrate also referred to as a color filter substrate
  • TFT Substrate thin film transistor array substrate
  • a transparent electrode is present on the opposite inner side of the substrate.
  • a layer of liquid crystal molecules (LC) is sandwiched between the two substrates.
  • the display panel controls the orientation of the liquid crystal molecules by an electric field, changes the polarization state of the light, and achieves the purpose of display by the penetration and blocking of the optical path by the polarizing plate.
  • the height of the spacer unit is often produced, and the process reproduction test must be performed. After several times of mask transmittance correction or process exposure energy adjustment, a better spacer unit is obtained. Highly controlled, wasting related test costs or mask development costs.
  • the technical problem to be solved by the present application is to provide a display panel with reduced cost.
  • the present application also provides a method of manufacturing a display panel.
  • a manufacturing method of a display panel comprising: providing a first substrate; forming an active switch on the first substrate; providing a second substrate opposite to the first substrate; Forming a color resist layer on the first substrate or the second substrate; and forming a spacer unit on the first substrate or the second substrate; the spacer unit comprises two different wavelength light initiators Photosensitive spacer material.
  • the photosensitive spacer material comprises a solvent, a binder, a monomer, an oligomer, a photoinitiator and an additive.
  • the solvent is an acrylate or epoxy polymer, and the solvent has a composition ratio of 60% to 80%.
  • the component ratio of the binder is 10% to 20%.
  • the proportion of the components of the monomer is 10% to 15%.
  • the monomer comprises a photoactive monomer.
  • the photoactive monomer is a acrylate or epoxy polymer.
  • the proportion of the components of the oligomer is less than 1%.
  • the photoinitiator comprises a long wavelength initiator and a short wavelength initiator
  • the component ratio of the long wavelength initiator is 2% to 4%
  • the composition ratio of the short wavelength initiator It is 1%.
  • component ratio of the additive is less than 1%.
  • the additive is one or more of an activator, an antioxidant, a deflocculant, a dispersant, a leveling agent, and a stabilizer.
  • the present application further discloses a display panel, the display panel comprising: a first substrate, a second substrate, and a color resist layer.
  • An active switch is disposed on the first substrate; the second substrate is disposed opposite to the first substrate; the color resist layer is disposed on the first substrate or the second substrate; wherein A substrate or the second substrate is provided with a spacer unit, and the spacer unit comprises two different wavelength light initiators.
  • the present application further discloses a method for manufacturing a display panel, comprising the steps of: providing a first substrate; forming an active switch on the first substrate; providing a second substrate, a first substrate is oppositely disposed; a color resist layer is formed on the first substrate or the second substrate; and a spacer unit is formed on the first substrate or the second substrate; Photosensitive spacer material of different wavelength photoinitiators; wherein the spacer material layer is made of a photosensitive spacer material including a solvent, a binder, a monomer, an oligomer, a photoinitiator, and an additive
  • the solvent is a acrylate or epoxy polymer, the solvent component ratio is 60% to 80%; the binder component ratio is 10% to 20%; the monomer Group The proportion is 10% to 15%; the proportion of the oligomer is less than 1%.
  • the shape and size of the spacer unit can be adjusted and controlled by adjusting the exposure energy. No need to waste the mask opening cost, can obtain accurate transmittance design value, and can control the exposure energy, which can effectively shorten the process production time and test cost, and better improve the production capacity and output of the display panel.
  • the simplified display panel production process better display panel production efficiency; and the precise control of the exposure energy and the light transmittance to achieve precise control of the height and shape of the spacer unit, further improving the high precision of the spacer unit
  • the specification ensures more accurate spacing unit height, upper and lower bottom area, and better elastic recovery rate, so as to better maintain the uniformity of the gap between the boxes and better reduce the light leakage of the display panel.
  • the situation occurs to further improve the contrast of the display panel.
  • FIG. 1 is a flowchart of a method of manufacturing a display panel according to an embodiment of the present application
  • FIG. 3 is a schematic diagram of a frequency spectrum of an exposure machine according to an embodiment of the present application.
  • FIG. 4 is a cross-sectional view of a display panel according to another embodiment of the present application.
  • FIG. 5 is a cross-sectional view of a display panel according to another embodiment of the present application.
  • FIG. 6 is a cross-sectional view of a display panel according to another embodiment of the present application.
  • FIG. 7 is a cross-sectional view of a display panel according to another embodiment of the present application.
  • first means two or more unless otherwise stated.
  • second means two or more unless otherwise stated.
  • connection In the description of the present application, it should be noted that the terms “installation”, “connected”, and “connected” are to be understood broadly, and may be fixed or detachable, for example, unless otherwise explicitly defined and defined. Connected, or integrally connected; can be mechanical or electrical; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of the two components. For those skilled in the art, the specific meanings of the above terms in the present application can be understood on a case-by-case basis.
  • the inventors further found that the height of the spacer unit 5, which is often produced well, must be subjected to a process reproduction test, after several times of mask transmittance correction or process exposure energy adjustment, so that a better spacer unit is obtained. 5 height control, wasting related test costs or mask development costs. Therefore, the inventor provides a new technical solution that can effectively save the cost of the display panel.
  • a method for manufacturing a display panel comprising the steps of:
  • Step S11 providing a first substrate
  • Step S12 forming an active switch on the first substrate
  • Step S13 providing a second substrate disposed opposite to the first substrate
  • Step S14 forming a color resist layer on the first substrate or the second substrate;
  • Step S15 forming a spacer unit on the first substrate or the second substrate.
  • the spacer unit comprises a photosensitive spacer material of two different wavelengths of photoinitiator.
  • the spacer unit 5 is made using a photosensitive spacer material containing two kinds of photoinitiators, the difference is In the case of a transmissive halftone mask, the shape and size of the spacer unit 5 can be adjusted and controlled by adjusting the reduction exposure energy, and the cost of the mask opening can be eliminated, and the precise transmittance design value can be obtained.
  • Controlling the exposure energy can effectively shorten the process time and test cost, improve the production capacity and output of the display panel, effectively simplify the production process of the display panel, and better display the production efficiency of the panel;
  • Controlling the light transmittance of the exposure energy and the illumination realizes precise control of the height and shape of the spacer unit 5, further improves the high-definition specification of the spacer unit 5, and ensures a more accurate height, upper and lower bottom area of the spacer unit 5, And better elastic recovery rate, so as to better maintain the uniformity of the gap between the boxes, better reduce the light leakage of the display panel, further improve the contrast of the display panel;
  • the substrate 1 can be selected as a color film substrate Or an array substrate, a transparent electrode layer is disposed on the color filter substrate or the array substrate, and the transparent electrode layer is provided on the transparent electrode layer to include two different Photosensitive spacer material photoinitiator long, the machining process using the mask photosensitive spacer material obtained spacing unit.
  • the mask is a multi-gray mask, and the multi-gray mask can be divided into a half-tone mask or a gray-tone mask.
  • the gray dimmer is to make a micro slit below the resolution of the exposure machine, and then to cover a part of the light source by the micro slit portion to achieve the effect of half exposure.
  • a halftone mask is semi-exposure using a semi-transmissive film. Since the above two methods are three exposure layers of the exposed portion, the half exposed portion and the unexposed portion after one exposure process, two layers of the photosensitive material layer can be formed after development.
  • the pattern can be transferred to the substrate 1 in a relatively small number of sheets, and the panel production efficiency is improved; the number of sheets of the multi-gray mask is relatively small due to the use.
  • the reticle can transfer the pattern onto the material layer, and the multi-gray reticle that can shorten the panel process will improve the panel production efficiency. Further, since the halftone can be expressed, the display quality of the display panel can be improved.
  • the photosensitive spacer material includes a solvent, a binder, a monomer, an oligomer, a photoinitiator, and an additive.
  • the solvent is one or more of propylene glycol monomethyl ether, cyclohexane, butyl carbitol and butyl carbitol acetate, and propylene glycol methyl ether acetate (PGMEA) is optionally used.
  • the solvent component ratio is 60% to 80%, and the solvent includes esters, ethers, aliphatic hydrocarbons, aromatic hydrocarbons, etc., for example: fatty alcohol, glycol ether, ethyl acetate, methyl ethyl ketone, cyclohexane, propylene glycol monomethyl ether , propylene glycol monomethyl ether acetate, xylene, and the like.
  • Ben The solvent to be applied may be one or more selected from the group consisting of propylene glycol monomethyl ether, cyclohexane, butyl carbitol, and butyl carbitol acetate; the above organic solvent can adjust the viscosity to facilitate photoresist coating.
  • the binder is a styrene monomer, and the component ratio of the binder is 10% to 20%.
  • the monomer comprises a photoactive monomer
  • the photoactive monomer is an acrylate or epoxy polymer
  • the solvent may specifically be an acrylic resin, a bisphenol A epoxy acrylate, a methacrylic resin and styrene. a copolymer, a polymer of pentaerythritol tetrakis-(trithiopropionate) and triallyl isocyanurate, one or more of a silicone resin, and a photoactive monomer including a vinyl ether
  • the monomer and/or the acrylate monomer may be used singly or in combination.
  • the vinyl ether monomer can adjust the viscosity of the curing system and participate in the cationic polymerization reaction, and effectively improve the antioxidant polymerization resistance of the photocuring system;
  • the vinyl ether monomer may include hydroxybutyl vinyl ether and hydroxybutyl group.
  • the vinyl ether monomer is hydroxybutyl vinyl ether, hydroxybutyl vinyl alcohol, triethylene glycol divinyl One or more of an ester and 2-ethylhexyl vinyl ether, wherein the acrylate monomer contains a bifunctional or polyfunctional group; wherein the difunctional acrylate monomer is selected from the group consisting of 1,6-hexanediol Acrylate, dipropylene glycol diacrylate, tripropylene glycol diacrylate, tetraethoxy modified bisphenol A diacrylate, methoxy polyethylene glycol monomethacrylate and polyethylene glycol dipropionic acid One or more of the esters; the polyfunctional acrylate monomer is selected from the group consisting of trimethylolpropane triacrylate, pentaerythritol triacrylate, pentaerythritol tetraacrylate, dipenta
  • photoactive monomers may be used singly or in combination of two or more.
  • One or more of hydroxybutyl vinyl ether, pentaerythritol tetraacrylate, hydroxybutyl vinyl alcohol and methoxy polyethylene glycol monomethacrylate; may be hydroxybutyl vinyl ether and pentaerythritol
  • the tetraacrylate composition may also be a hydroxybutyl vinyl alcohol, a pentaerythritol tetraacrylate, and a methoxy polyethylene glycol monomethacrylate composition.
  • the ratio thereof can be increased or decreased according to the need to adjust the exposure time.
  • the oligomer comprises a functional monomer
  • the functional monomer may be a propoxylated trimethylol propane triacrylate, a group of oligomers The ratio is less than 1%.
  • the photoinitiator is one or more of an acetophenone type, an acyl phosphorus oxide, an aromatic ketone, an aromatic sulfonium salt, an iodonium salt and a ferrocenium salt, and the photoinitiator comprises a long wavelength start And a short-wavelength initiator; the photoinitiator acts to form a radical or an ionic active group in the light or heat, to initiate a cross-linking reaction between molecules, the size of the pigment particles, the particle size distribution, and the particle shape.
  • the surface polarity, particle aggregation state and its chemical properties all have an effect on the final properties of the photoresist.
  • the photoinitiator used in the present application is selected from the group consisting of an acylphosphine oxide, a benzoin ether, a benzoin dimethyl ether, a dodecylbenzene iodonium salt, a thiophenyl pair of oxyzacyclopropanone, and an Irgacure 500.
  • an acylphosphine oxide a benzoin ether, a benzoin dimethyl ether, a dodecylbenzene iodonium salt, a thiophenyl pair of oxyzacyclopropanone, and an Irgacure 500.
  • Gencure 907, etc. the component ratio of the long-wavelength initiator is 2% to 4%, and the component ratio of the short-wavelength initiator is 1%.
  • the additive is one or more of an activator, an antioxidant, a deflocculant, a dispersant, a leveling agent and a stabilizer; wherein the stabilizer is selected from the group consisting of hydroquinone, methoxy-p-cresol, and benzene.
  • a dispersant is a polymer compound used for dispersing pigments, including polyacrylic acid, styrene-horse An anhydride half-ester, a styrene-acrylic acid copolymer, etc.; the dispersing agent functions as a wetting, dispersing, anti-agglomerating and stable dispersion system, and lowering the viscosity.
  • the dispersing agent of the present application is selected from the group consisting of an amide polymer and a modified poly An ester polymer, a polymer block copolymer containing a pigment-affinity group, a polyether-modified dimethylpolysiloxane copolymer, a silicone surfactant, a modified polyurethane, a modified polyacrylate One or more.
  • the additives that can be used include TA-100, BYK160, 161, 163, 170, 2000, 2001 series, EFKA 46, 47, 452 series, EFKA Polymer 400, 403, 64 series; the component ratio of the additive is less than 1%.
  • the material photoinitiator wavelength adjustment is performed in the J to K wavelength region (the main absorption wavelength of the photosensitive spacer material is located at 300 to 350 nm) through the information of the spectrum of the exposure machine.
  • the long-wavelength initiator has a long wavelength and a small energy in a short time, and can uniformly control the shape of the upper bottom of the photosensitive spacer material; the short-wavelength initiator has a short wavelength and a large energy in a short time, and can be uniformly controlled.
  • the shape of the bottom of the photosensitive spacer material at the same time, through the addition of two long and short wavelengths (different ratios), the applicable wavelength of the exposure machine can be controlled at the same time, the exposure energy can be controlled within a certain range, and the range of the exposure energy of the exposure machine spectrum can be reduced.
  • the active switch 2 includes a gate 21, the gate 21 is disposed on the substrate 1, and the gate 21 is provided with an insulating layer.
  • the corresponding gate 21 of the insulating layer is provided with a semiconductor layer 24, and both ends of the semiconductor layer 24.
  • a source 22 and a drain 23 of the active active switch 2 are disposed, a channel 25 is disposed between the source 22 and the drain 23, and a semiconductor layer 24 is formed at the bottom of the channel 25.
  • the protective layer 3 can effectively prevent direct corrosion of the source 22 and the drain 23 of the display panel by the cleaning agent, so that the source 22 and the drain 23 can be kept intact, thereby reducing the problem of disconnection, and thus the active switch 2 is provided.
  • the success rate of the array substrate is reduced, thereby reducing the scrapping cost; since the source 22 and the drain 23 are made of a metal material, the sides of the source 22 and the drain 23 have metal burrs from the microstructure, and
  • the protection layer 3 can better cover the metal burrs on the source 22 and the drain 23, effectively preventing the metal burrs from being exposed outside the protective layer 3, so that the protective layer 3 can better serve the source 22 and The drain 23 is protected, effectively avoiding the influence of the subsequent process on the source 22 and the drain 23, thereby effectively improving the yield of the display panel;
  • the protective layer 3 can be disposed in two layers, respectively being the first protective layer and the first a second protective layer, the first protective layer is disposed on the substrate 1, and the second protective layer is disposed on the first protective
  • the transparent electrode layer 4 is disposed between the spacer unit 5 and the active switch 2, and only needs to be exposed at a specific position of the process mask design of the transparent electrode layer 4, so that the transparent electrode layer 4 can be effectively disposed to ensure the cost is constant.
  • the partition unit 5 can be better supported to ensure better display quality of the display panel; no additional raw materials are needed, raw material cost and storage cost are reduced, the bill of materials does not need to be added with new materials, and process management and procurement are facilitated. No additional equipment is required to set the transparent electrode layer 4, a set of equipment can be shared with the pixel electrode, and no additional equipment and materials are needed for post-etching.
  • the spacer unit 5 is disposed across the channel 25 such that the spacer unit 5 can form an effective support at both ends of the channel 25, so that the spacer unit 5 can be more stably disposed on the transparent electrode layer 4, and the spacer unit 5 can be effectively prevented. Displacement ensures that the liquid crystal in the liquid crystal cell can work effectively, thereby ensuring more uniform color and brightness of the display panel, further improving the display effect of the display panel, and improving the competitiveness of the product;
  • the cross section of the unit 5 is quadrangular, which can effectively prevent the rolling of the spacing unit 5, so that the spacing unit 5 can be effective.
  • the width of one end of the spacer unit 5 in contact with the transparent electrode layer 4 is greater than the width of the other end, that is, the width of the bottom portion of the spacer unit 5 is larger than the top portion, so that the fabrication of the gate electrode 21 is more convenient, the molding is more stable, the yield is higher, and
  • the contact area of the bottom of the spacer unit 5 is larger, which ensures a better bonding effect, so that the fixing of the spacing unit 5 is more firm, wherein the section of the spacing unit 5 can be selected as a trapezoid, in particular an isosceles trapezoid, so that in the rear section
  • the external force is effectively reduced on the spacing unit 5 to squeeze the active switch 2, thereby ensuring that the active switch 2 performs better, effectively reducing the occurrence of darkness. Click or press a dark spot.
  • the display panel includes a substrate, a transparent electrode layer, and a spacer unit.
  • the transparent electrode layer is disposed on the substrate; the spacer layer is disposed on the transparent electrode layer, and the spacer unit comprises two different wavelength light initiators.
  • the display panel includes: a substrate 1; a color photoresist layer 6 disposed on the substrate 1; and the color photoresist layer 6 is covered with a transparent electrode layer 4;
  • the transparent electrode layer 4 is provided with a spacer unit 5; the spacer unit 5 comprises two different wavelength light initiators, and the substrate may be a color film substrate or an array substrate.
  • the spacer unit 5 comprises two kinds of photoinitiators; the spacer unit 5 comprises photo-sensing materials of two kinds of photoinitiators, which can be adjusted and controlled by adjusting the reduction exposure energy in the case of different transmittance halftone masks.
  • the shape and size of the spacer unit 5 eliminates the need to waste the hood opening cost, can obtain accurate transmittance design value, and can control the exposure energy, can effectively shorten the process production time and test cost, and better improve the display panel.
  • Capacity and output effectively simplify the production process of the display panel, better display panel production efficiency; and can accurately control the height and shape of the spacer unit 5 by precisely controlling the exposure energy and the light transmittance of the light, further
  • the high-definition specification of the lifting compartment unit 5 ensures a more precise height of the spacer unit 5, the area of the upper and lower bases, and a better elastic recovery rate, thereby better maintaining the uniformity of the gap between the cartridges.
  • the photosensitive spacer material has The high hardness can ensure effective support performance, and the liquid crystal in the liquid crystal box can work effectively, thereby ensuring more uniform color and brightness of the display panel, further improving the display effect of the display panel, and being able to reduce the display layer well.
  • the photosensitive spacer material has good heat resistance and superior chemical corrosion resistance, ensuring that the display panel can be very good Working to further ensure the quality of the display panel;
  • the spacing unit 5 has high light transmittance and contrast, thereby ensuring a more uniform color and brightness of the display panel, effectively improving the quality of the display panel; and the spacing unit 5 and the transparent
  • the electrode layer 4 has a good adhesive force, so that the spacer unit 5 is better fixed, effectively avoiding the displacement of the spacer unit 5, ensuring that the liquid crystal in the liquid crystal cell can work effectively, thereby ensuring the color of the display panel.
  • the photosensitive spacer material is a polymer resin mixture, and has photosensitivity
  • the manufacturing method thereof is: coating the photosensitive spacer material On the transparent electrode layer 4, after exposure, development, baking, etc.
  • a spacer unit 5 having a thickness and a shape is required, and then the substrate 1 having the spacer unit 5 is directly bonded to the other substrate, and a liquid crystal cell is formed between the two spacer units 5; the shape of the spacer unit 5 is controlled by a photolithography process.
  • the thickness and shape described by the spacer unit 5 can be effectively controlled, ensuring that the spacer unit 5 can provide effective support performance, effectively improving the external force acting on the spacer unit in subsequent processes.
  • 5 causes the active switch 2 to be deformed, and can well reduce the influence on the electrical properties of the active switch 2, further improve the dark spots of the lighting, so that the display panel display effect is better, and the display quality of the display panel is further improved.
  • the display panel disclosed in this embodiment includes: a substrate 1 , an active switch 2 disposed on the substrate 1 , a protective layer 3 disposed on the active switch 2 , and a spacer unit 5 disposed on the active switch 2 .
  • the spacer unit 5 is disposed on the protective layer 3, and a first transparent electrode layer 41 is disposed between the spacer unit 5 and the opposite surface of the protective layer 3.
  • the first transparent electrode layer 41 is positive along the spacer unit 5 on the protective layer 3.
  • the projection area setting can effectively support the support while effectively saving the consumables, which is beneficial to further reducing the production cost of the display panel, effectively improving the market competitiveness of the display panel, and effectively supporting the spacer unit 5, effectively
  • the reduction of the external force on the spacer unit 5 in the subsequent process causes the active switch 2 to be deformed, and the electrical influence on the active switch 2 can be well reduced, and the dark spot of the lighting is further improved, so that the display panel is more effective.
  • the display quality of the display panel is further improved.
  • the spacer unit 5 is disposed across the channel 25 such that the spacer unit 5 can form an effective support at both ends of the channel 25, so that the spacer unit 5 can be more stably disposed on the first transparent electrode layer 41,
  • the displacement of the spacer unit 5 can be effectively prevented, and the liquid crystal in the liquid crystal cell can be effectively operated, thereby ensuring more uniform color and brightness of the display panel, further improving the display effect of the display panel, and making the product more competitive.
  • the symmetry of the spacer unit 5 is quadrangular, which can effectively prevent the rolling of the spacer unit 5, so that the spacer unit 5 can be effectively fixed on the active switch 2, and the spherical spacer material is well overcome. In the case of gathering, the damage of the dead pixels and the color filter is effectively avoided, the color filter is effectively protected, and the durability of the display panel is further improved, so that the display panel has a longer service life.
  • the width of one end of the spacer unit 5 in contact with the first transparent electrode layer 41 is greater than the width of the other end, that is, the width of the bottom portion of the spacer unit 5 is larger than the top portion, so that the fabrication of the gate electrode 21 is more convenient, the molding is more stable, and the yield is higher.
  • the contact area of the bottom of the spacer unit 5 is made larger, a better bonding effect is ensured, and the fixing of the spacer unit 5 is more firm, wherein the section of the spacer unit 5 can be selected as a trapezoid, in particular an isosceles trapezoid, so that In the back-end process/thinning process/press test, the external force is effectively reduced on the spacer unit 5 to squeeze the active switch 2, ensuring that the active switch 2 has better electrical performance and effectively reduces the occurrence. Light up a dark spot or press a dark spot.
  • the display panel disclosed in this embodiment includes: a substrate 1 , an active switch 2 disposed on the substrate 1 , a protective layer 3 disposed on the active switch 2 , and a spacer unit 5 disposed on the active switch 2 .
  • the spacer unit 5 is disposed on the protective layer 3.
  • the transparent electrode layer 4 is disposed between the spacer unit 5 and the opposite surface of the protective layer 3.
  • the transparent electrode layer 4 includes a second transparent electrode layer 42 and a third transparent electrode layer 43. 25 is disposed between the second transparent electrode layer 42 and the third transparent electrode layer 43 .
  • the second transparent electrode layer 42 is disposed on the protective layer 3 above the source 22
  • the third transparent electrode layer 43 is disposed above the drain 23 .
  • the second transparent electrode layer 42 and the third transparent electrode layer 43 support the spacer unit 5, and can effectively support the spacer unit 5, thereby effectively reducing the external force acting on the spacer unit 5 in the subsequent process.
  • the active switch 2 is deformed, and the influence of the electrical properties of the active switch 2 is well reduced, and the dark spots of the lighting are further improved, so that the display panel has better display effect, and the display quality of the display panel is further improved;
  • the transparent electrode layer 4 is disposed at both ends of the channel 25 to effectively reduce the manufacturing difficulty, and only needs to be exposed at a specific position of the process mask design of the transparent electrode layer 4, so that the spacer unit 5 can be obtained under the condition that the cost is constant.
  • the spacer unit 5 is disposed across the channel 25 such that the spacer unit 5 can form an effective support at both ends of the channel 25, so that the spacer unit 5 can be more stably disposed on the transparent electrode layer 4, and the spacer unit 5 can be effectively prevented.
  • Displacement ensures that the liquid crystal in the liquid crystal cell can work effectively, thereby ensuring more uniform color and brightness of the display panel, further improving the display effect of the display panel, and improving the competitiveness of the product;
  • the cross-section of the unit 5 is quadrangular, which can effectively prevent the rolling of the spacing unit 5, so that the spacing unit 5 can be effectively fixed on the active switch 2, and the spherical spacer material can be easily overcome, thereby effectively Avoid damage to dead pixels and color filters, and better protect the color filters, further improving the durability of the display panel and making the display panel last longer.
  • the material of the substrate 1 may be selected from glass, plastic light-transmitting materials and the like.
  • the liquid crystal panel includes an array substrate and a color filter substrate (CF), the array substrate is disposed opposite to the color filter substrate, and a liquid crystal is disposed between the array substrate and the color filter substrate.
  • the spacer unit is provided with an active switch.
  • the active switch is, for example, a thin film transistor (TFT).
  • TFT thin film transistor
  • the color film substrate is provided with a color photoresist layer, and the color photoresist layer and the active switch can be formed on the same substrate.
  • the display panel is, for example, a liquid crystal panel, an OLED (Organic Light-Emitting Diode) panel, a QLED (Quantum Dot Light Emitting Diodes) panel, a plasma panel, a flat panel, a curved panel, etc., and is not used here. limited.
  • OLED Organic Light-Emitting Diode
  • QLED Quadantum Dot Light Emitting Diodes

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Abstract

一种显示面板的制造方法，包括步骤：提供一第一基板（S11）；在所述第一基板上形成主动开关（S12）；提供一第二基板，与所述第一基板相对设置（S13）；在所述第一基板或所述第二基板上形成一色阻层（S14）；在所述第一基板或所述第二基板上形成一间隔单元（S15）；其中所述间隔单元包含两种不同波长光起始剂的感光间隔材料。

Description

显示面板及其制造方法 技术领域
本申请涉及显示技术领域，尤其涉及一种显示面板及其制造方法。
背景技术
显示器具有机身薄、省电、无辐射等众多优点，得到了广泛的应用。现有市场上的显示器大部分为背光型显示器，其包括显示面板及背光模组(backlight module)。显示面板的工作原理是在两片平行的基板当中放置液晶分子，并在两片基板上施加驱动电压来控制液晶分子的旋转方向，以将背光模组的光线折射出来产生画面。
其中，薄膜晶体管液晶显示器(Thin Film Transistor-Liquid Crystal Display，TFT-LCD)由于具有低的功耗、优异的画面品质以及较高的生产良率等性能，目前已经逐渐占据了显示领域的主导地位。同样，薄膜晶体管液晶显示器包含显示面板和背光模组，显示面板包括彩膜基板(Color Filter Substrate，CF Substrate，也称彩色滤光片基板)和薄膜晶体管阵列基板(Thin Film Transistor Substrate，TFT Substrate)，上述基板的相对内侧存在透明电极。两片基板之间夹一层液晶分子(Liquid Crystal，LC)。显示面板是通过电场对液晶分子取向的控制，改变光的偏振状态，并藉由偏光板实现光路的穿透与阻挡，实现显示的目的。
目前显示面板行业中，往往为产出良好的间隔单元的高度，必须进行制程的再现测试，经过几次的光罩穿透率修正或者是制程曝光能量的调整，使得获得较佳的间隔单元的高度控制，浪费相关测试成本或光罩开发成本。
发明内容
本申请所要解决的技术问题是提供一种降低成本的显示面板。
此外，本申请还提供一种显示面板的制造方法。
本申请的目的是通过以下技术方案来实现的：
一种显示面板的制造方法，其中，包括步骤：提供一第一基板；在所述第一基板上形成主动开关；提供一第二基板，与所述第一基板相对设置；在 所述第一基板或所述第二基板上形成一色阻层；以及在所述第一基板或所述第二基板上形成一间隔单元；所述间隔单元包含两种不同波长光起始剂的感光间隔材料。
其中，所述感光间隔材料包括溶剂、粘合剂、单体、低聚体、光起始剂和添加剂。
其中，所述溶剂为丙烯酸脂类或环氧类的聚合物，所述溶剂的组分比例为60％～80％。
其中，所述粘合剂的组分比例为10％～20％。
其中，所述单体的组分比例为10％～15％。
其中，所述单体包括光活性单体。
其中，所述光活性单体为丙烯酸脂类或环氧类的聚合物。
其中，所述低聚体的组分比例小于1％。
其中，所述光起始剂包括长波长起始剂和短波长起始剂，所述长波长起始剂的组分比例为2％～4％，所述短波长起始剂的组分比例为1％。
其中，所述添加剂的组分比例小于1％。
其中，所述添加剂为活化剂、抗氧化剂、抗絮凝剂、分散剂、流平剂和稳定剂中的一种或多种。
根据本申请的另一个方面，本申请还公开了一种显示面板，所述显示面板包括：一第一基板、一第二基板以及色阻层。在所述第一基板上设置主动开关；所述第二基板与所述第一基板相对设置；所述色阻层设在所述第一基板或所述第二基板上；其中，所述第一基板或所述第二基板上设有间隔单元，所述间隔单元包含两种不同波长光起始剂。
根据本申请的又一个方面，本申请还公开了一种显示面板的制造方法，包括步骤：提供一第一基板；在所述第一基板上形成主动开关；提供一第二基板，与所述第一基板相对设置；在所述第一基板或所述第二基板上形成一色阻层；以及在所述第一基板或所述第二基板上形成一间隔单元；所述间隔单元包含两种不同波长光起始剂的感光间隔材料；其中，所述间隔材料层采用感光间隔材料制成，所述感光间隔材料包括溶剂、粘合剂、单体、低聚体、光起始剂和添加剂；所述溶剂为丙烯酸脂类或环氧类的聚合物，所述溶剂的组分比例为60％～80％；所述粘合剂的组分比例为10％～20％；所述单体的组 分比例为10％～15％；所述低聚体的组分比例小于1％。
本申请由于采用了包含两种光起始剂的感光间隔材料来制作间隔单元，在不同的穿透率的半色调光罩情况下，可以通过调整缩小曝光能量来调整和控制间隔单元的形状大小，无需再浪费光罩开立成本，可得到精准的穿透率设计值，同时可控制曝光能量，能够有效的缩短工艺生产时间及测试成本，更好的提高显示面板的产能和产出，有效的简化显示面板的生产流程，更好的显示面板的生产效率；而且能够通过精准的控制曝光能量和光照的透光率实现精准的控制间隔单元的高度和形状，进一步的提升间隔单元的高精细规格，保证更加精准的间隔单元的高度、上底和下底的面积，以及更好的弹性回复率，从而更好的保持较佳的盒间间隙的均匀性，更好的降低显示面板漏光的情况发生，进一步的提高显示面板的对比度。
附图说明
图1是本申请实施例的显示面板的制作方法的流程图；
图2是本申请实施例的感光间隔材料的成份及组分比例；
图3是本申请实施例的曝光机频谱示意图；
图4是本申请实施例的另一实施例方式显示面板的剖面示意图；
图5是本申请实施例的另一实施例方式显示面板的剖面示意图；
图6是本申请实施例的另一实施例方式显示面板的剖面示意图；以及
图7是本申请实施例的另一实施例方式显示面板的剖面示意图。
具体实施方式
这里所公开的具体结构和功能细节仅仅是代表性的，并且是用于描述本申请的示例性实施例的目的。但是本申请可以通过许多替换形式来具体实现，并且不应当被解释成仅仅受限于这里所阐述的实施例。
在本申请的描述中，需要理解的是，术语“中心”、“横向”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。此外，术语“第一”、“第二” 仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本申请的描述中，除非另有说明，“多个”的含义是两个或两个以上。另外，术语“包括”及其任何变形，意图在于覆盖不排他的包含。
在本申请的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请中的具体含义。
这里所使用的术语仅仅是为了描述具体实施例而不意图限制示例性实施例。除非上下文明确地另有所指，否则这里所使用的单数形式“一个”、“一项”还意图包括复数。还应当理解的是，这里所使用的术语“包括”和/或“包含”规定所陈述的特征、整数、步骤、操作、单元和/或组件的存在，而不排除存在或添加一个或更多其他特征、整数、步骤、操作、单元、组件和/或其组合。
下面结合附图和具体的实施例对本申请作进一步说明。
发明人进一步研究发现，往往为产出良好的间隔单元5的高度，必须进行制程的再现测试，经过几次的光罩穿透率修正或者是制程曝光能量的调整，使得获得较佳的间隔单元5的高度控制，浪费相关测试成本或光罩开发成本。因此，发明人提供一种新的技术方案，可以有效节省成本的显示面板。
如图1所示，一种显示面板的制造方法，其中，所述显示面板包括基板1、设在基板1上的彩色光阻层6，包括步骤：
步骤S11：提供一第一基板；
步骤S12：在所述第一基板上形成主动开关；
步骤S13：提供一第二基板，与所述第一基板相对设置；
步骤S14：在所述第一基板或所述第二基板上形成一色阻层；
步骤S15：在所述第一基板或所述第二基板上形成一间隔单元。
其中所述间隔单元包含两种不同波长光起始剂的感光间隔材料。
由于采用了包含两种光起始剂的感光间隔材料来制作间隔单元5，在不同 的穿透率的半色调光罩情况下，可以通过调整缩小曝光能量来调整和控制间隔单元5的形状大小，无需再浪费光罩开立成本，可得到精准的穿透率设计值，同时可控制曝光能量，能够有效的缩短工艺生产时间及测试成本，更好的提高显示面板的产能和产出，有效的简化显示面板的生产流程，更好的显示面板的生产效率；而且能够通过精准的控制曝光能量和光照的透光率实现精准的控制间隔单元5的高度和形状，进一步的提升间隔单元5的高精细规格，保证更加精准的间隔单元5的高度、上底和下底的面积，以及更好的弹性回复率，从而更好的保持较佳的盒间间隙的均匀性，更好的降低显示面板漏光的情况发生，进一步的提高显示面板的对比度；基板1可选为彩膜基板或阵列基板，在彩膜基板或阵列基板设置透明电极层，在透明电极层上设置包含两种不同波长光起始剂的感光间隔材料，采用光罩制程加工所述感光间隔材料获得间隔单元。
光罩采用多灰阶光罩，多灰阶光罩可分为半色调光罩(Half-tone mask)或者灰色调光罩(Gray-tone mask)两种。灰色调光罩是制作出曝光机分辨率以下的微缝，再藉由此微缝部位遮住一部份的光源，以达成半曝光的效果。另一方面，半色调光罩是利用半透过的膜来进行半曝光。因为以上两种方式皆是在一次的曝光过程后即可呈现出曝光部分、半曝光部分及未曝光部分这三种的曝光层次，故在显影后能够形成两种厚度的感光材料层。藉由利用这样的光阻厚度差异，便可以较一般少的片数下将图形转写至基板1上，并达成面板生产效率的提升；多灰阶光罩由于使用较一般还少的片数的光罩，便能够将图形转印于材料层上，可缩短面板制程的多灰阶光罩将可实现面板生产效率的提升。此外，因为能够表现出半色调，故可以提高显示器面板的显示品质。
如图2所示，感光间隔材料包括溶剂、粘合剂、单体、低聚体、光起始剂和添加剂。
其中，溶剂为丙二醇单甲基醚、环己烷、丁基卡必醇和丁基卡必醇醋酸酯中的一种或多种，可选的采用丙二醇甲醚乙酸酯(propyleneglycolmethyletheracetate，PGMEA)，溶剂的组分比例为60％～80％，溶剂包括酯、醚、脂肪烃、芳香烃等，例如：脂肪醇、乙二醇醚、乙酸乙酯、甲乙酮、环己烷、丙二醇单甲基醚、丙二醇单甲基醚乙酸酯、二甲苯等。本 申请的溶剂可选丙二醇单甲基醚、环己烷、丁基卡必醇、丁基卡必醇醋酸酯中的一种或多种；上述有机溶剂可以调整粘度，便于光阻涂布。
其中，粘合剂为苯乙烯单体，粘合剂的组分比例为10％～20％。
其中，单体包括光活性单体，光活性单体为丙烯酸脂类或环氧类的聚合物，溶剂具体的可以为丙烯酸树脂、双酚A型环氧丙烯酸酯、甲基丙烯酸树脂与苯乙烯的共聚物、季戊四醇四-(三硫基丙酸酯)与异氰尿酸三烯丙基酯的聚合物、聚硅氧烷树脂中的一种或多种，光活性单体包括乙烯基醚类单体和/或丙烯酸酯类单体，二者可以单独使用，也可以同时使用。乙烯基醚类单体能调节固化体系的粘度，并能参与阳离子聚合反应，有效改善光固化体系的抗氧阻聚性能；乙烯基醚类单体可以包括羟丁基乙烯基醚、羟丁基乙烯基醇和三乙二醇二乙烯基酯、2-乙基己基乙烯基醚；其中乙烯基醚类单体为羟丁基乙烯基醚、羟丁基乙烯基醇、三乙二醇二乙烯基酯和2-乙基己基乙烯基醚中的一种或多种，其中丙烯酸酯类单体含有双官能团或多官能团；其中，双官能团丙烯酸酯类单体选自1，6-己二醇双丙烯酸酯、二缩丙二醇双丙烯酸酯、三缩丙二醇双丙烯酸酯、四乙氧基改性双酚A双丙烯酸酯、甲氧基聚乙二醇单甲基丙烯酸酯和聚乙二醇双丙酸酯中的一种或多种；多官能团丙烯酸酯类单体选自三羟甲基丙烷三丙烯酸酯、季戊四醇三丙烯酸酯、季戊四醇四丙烯酸酯、二季戊四醇五丙烯酸酯、二季戊四醇六丙烯酸酯、二三羟甲基丙烷四丙烯酸酯、乙氧基化三羟甲基丙烷三丙烯酸酯2和丙氧基化甘油三聚丙烯酸酯中的一种或多种；光活性单体为多官能团单体，其含有2个或2个以上不饱和双键化合物，能够在光引发剂作用下发生聚合交联反应；单体的组分比例为10％～15％。
上述光活性单体可以单独使用，也可以两种以上组合使用。可选羟丁基乙烯基醚、季戊四醇四丙烯酸酯、羟丁基乙烯基醇和甲氧基聚乙二醇单甲基丙烯酸酯中的一种或多种；可以是羟丁基乙烯基醚和季戊四醇四丙烯酸酯组合物，也可以是羟丁基乙烯基醇、季戊四醇四丙烯酸酯和甲氧基聚乙二醇单甲基丙烯酸酯组合物。当多种物质混合时，其比例可以根据调节曝光时间的需要来增减。
其中，低聚体包括功能性单体，功能性单体可以是丙氧基化三羟甲基丙烷三丙烯酸脂(propoxylatedtrimethylol propane triacrylate)，低聚体的组 分比例小于1％。
其中，光起始剂为苯乙酮系、酰基磷氧化物、芳香酮类、芳香硫鎓盐、碘鎓盐和茂铁盐中的一种或多种，光起始剂包括长波长起始剂和短波长起始剂；光起始剂作用是在光照或加热时使光阻剂形成自由基或离子活性基，引发分子间的交联反应、颜料粒子的大小、粒径分布、粒子形状、表面极性、粒子聚集状态以及其化学特性都对光阻剂的最终性能有影响。可选地，本申请所用光起始剂选自酰基磷氧化物、苯偶姻醚、安息香二甲醚、双十二烷基苯碘鎓盐、硫代苯基一对氧氮环丙酮、Irgacure500、Gencure907等中的一种或多种；长波长起始剂的组分比例为2％～4％，短波长起始剂的组分比例为1％。
其中，添加剂为活化剂、抗氧化剂、抗絮凝剂、分散剂、流平剂和稳定剂中的一种或多种；其中稳定剂选自如对苯二酚、甲氧基对甲苯酚、对苯醌、2，5-二叔丁基氢醌、2，5-对二甲基对苯醌中的一种或多种；分散剂为分散颜料所用的高分子化合物，包括聚丙烯酸类、苯乙烯-马来酸酐半酯类、苯乙烯-丙烯酸共聚物等；分散剂起到润湿、分散、抗凝聚及稳定分散体系、降低粘度等作用，本申请分散剂选自酰胺类聚合物、改性聚亚安酯聚合物、含有亲颜料基团的高分子嵌段共聚物、聚醚改性的二甲基聚硅氧烷共聚物、有机硅表面活性剂、改性聚氨酯、改性聚丙烯酸酯中的一种或多种。可采用的添加剂包括TA-100，BYK160、161、163、170、2000、2001系列，EFKA46、47、452系列，EFKAPolymer400、403、64系列；添加剂的组分比例小于1％。
如图3所示，透过曝光机频谱的资讯，在J～K波长区域(感光间隔材料主要吸收波长位于300～350nm位置)，进行材料光起始剂波长调整。长波长起始剂因波长较长，短时间内能量较小，可均匀的控制感光间隔材料的上底形状；短波长起始剂因波长较短，短时间内能量较大，可均匀的控制感光间隔材料的下底形状；同时透过两个长短波长相加(不同比例配比)，可同时控制曝光机适用波长，将曝光能量控制在一定范围，缩小曝光机频谱控制曝光能量的范围。
如图4所示，主动开关2包括栅极21，栅极21设在基板1上，栅极21上设有绝缘层，绝缘层上对应栅极21设有半导体层24，半导体层24两端上设有分隔的主动开关2的源极22和漏极23，源极22和漏极23之间设有沟道25，沟道25底部为半导体层24。
保护层3能够有效的避免清洗剂对显示面板的源极22和漏极23的直接腐蚀，使得源极22和漏极23能够保持完好，从而减少产生断线问题，进而提升设有主动开关2的阵列基板的重工成功率，进而降低报废成本；由于源极22和漏极23为金属材料制成，源极22和漏极23的侧边从微结构来看都有金属毛刺的现象，通过保护层3的设置，能够更好的对源极22和漏极23上的金属毛刺进行覆盖，有效的防止金属毛刺裸露在保护层3外，使得保护层3能够更好的对源极22和漏极23进行保护，有效的避免后续的制程对源极22和漏极23的影响，从而有效的提高显示面板的良品率；可以将保护层3设置两层，分别为第一保护层和第二保护层，第一保护层覆盖设在基板1上，第二保护层覆盖设在第一保护层上，能够更好的对金属层上的金属毛刺进行覆盖，第一保护层能够有效的对金属毛刺进行覆盖，第二保护层能够有效的对裸露在第一保护层上的金属毛刺进行覆盖，有效的防止金属毛刺裸露在保护层3外，使得保护层3能够更好的对金属层进行保护，能够有效的避免清洗剂对显示面板的金属层的直接腐蚀，使得金属层能够保持完好，从而避免产生断线问题，进一步的提高了显示面板的耐用性；同时采用保护层3的设置能够很好提高显示面板的良品率，而不需要将设有主动开关2的阵列基板进行报废处理，更加的绿色环保。
透明电极层4设在间隔单元5和主动开关2之间，只需要在透明电极层4的制程光罩设计特定的位置进行曝光，就能够有效的设置透明电极层4，保证成本不变的情况下使得间隔单元5可以得到更好的支撑，保证显示面板的更好的显示品质；不需要额外的原材料，降低原材料成本、存储成本，物料清单不需要增加新的材料，方便流程管理和采购，不需要额外的设备设置透明电极层4，可以与像素电极共用一套设备，后期蚀刻也不需要额外的设备和材料。
间隔单元5横跨沟道25设置，这样间隔单元5可以在沟道25的两端形成有效的支撑，使得间隔单元5可以更加稳定的设置在透明电极层4上，能够有效的防止间隔单元5发生位移，保证了液晶盒内的液晶能够有效的进行工作，从而保证显示面板的颜色和亮度更加的均匀，进一步的提高了显示面板的显示效果，使得产品竞争力更好的得到提升；而且间隔单元5的横截面为四边形，能够有效的防止间隔单元5的滚动，使得间隔单元5可以有效的 固定在主动开关2上，而且很好的克服了球形的间隔材料容易聚集的情况，从而有效的避免坏点和彩色滤光片的损坏，更好的对彩色滤光片进行有效的保护，进一步的提高了显示面板的耐用性，使得显示面板的使用寿命更长。
间隔单元5与透明电极层4相接触的一端的宽度大于另一端的宽度，即间隔单元5底部宽度大于顶部，使得栅极21的制作更加的方便，成型更加稳定，良品率更高，而且使得间隔单元5底部的接触面积更大，保证了更好的粘接效果，使得间隔单元5的固定更加的牢固，其中间隔单元5的截面可选为梯形，特别是等腰梯形，使得在后段偏贴制程/薄化制程/按压测试等环节中，有效的减少外力作用在间隔单元5上进而对主动开关2进行挤压作用，保证主动开关2电性表现更好，有效的减少出现点灯暗点或按压暗点。
本实施方式公开一种显示面板。所述显示面板包括基板、透明电极层以及间隔单元。所述透明电极层设置在所述基板上；所述透明电极层上设有所述间隔单元，所述间隔单元包含两种不同波长光起始剂。
具体的，如图5所示，所述显示面板包括：基板1；彩色光阻层6，设置在所述基板1上；所述彩色光阻层6上覆盖设有透明电极层4；所述透明电极层4上设有间隔单元5；所述间隔单元5包含两种不同波长光起始剂，基板可选为彩膜基板或阵列基板。
间隔单元5包含两种光起始剂；间隔单元5包含两种光起始剂的感光间隔材料，在不同的穿透率的半色调光罩情况下，可以通过调整缩小曝光能量来调整和控制间隔单元5的形状大小，无需再浪费光罩开立成本，可得到精准的穿透率设计值，同时可控制曝光能量，能够有效的缩短工艺生产时间及测试成本，更好的提高显示面板的产能和产出，有效的简化显示面板的生产流程，更好的显示面板的生产效率；而且能够通过精准的控制曝光能量和光照的透光率实现精准的控制间隔单元5的高度和形状，进一步的提升间隔单元5的高精细规格，保证更加精准的间隔单元5的高度、上底和下底的面积，以及更好的弹性回复率，从而更好的保持较佳的盒间间隙的均匀性，更好的降低显示面板漏光的情况发生，进一步的提高显示面板的对比度；而且由于感光间隔材料具有较高的硬度，能够保有效的支撑性能，液晶盒内的液晶能够有效的进行工作，从而保证显示面板的颜色和亮度更加的均匀，进一步的提高了显示面板的显示效果，而且能够很好的减少对主动开关2电性的影响， 进一步的改善点灯出现暗点，使得显示面板显示效果更好，进一步的提高了显示面板的显示品质；感光间隔材料具有良好的耐热性和优越的耐化学腐蚀性，保证显示面板能够很好的进行工作，进一步的保证了显示面板的品质；间隔单元5具有高的透光率和对比度，从而保证显示面板的颜色和亮度更加的均匀，有效的提升显示面板的品质；同时间隔单元5与透明电极层4之间具有良好的粘接力，使得间隔单元5更好的被固定，有效的避免间隔单元5发生位移，保证了液晶盒内的液晶能够有效的进行工作，从而保证显示面板的颜色和亮度更加的均匀，进一步的提高了显示面板的显示效果，使得产品竞争力更好的得到提升；感光间隔材料为高分子树脂混合物，具有光敏性，其制作方法为：将感光间隔材料涂布在透明电极层4上，经过曝光、显影、烘烤等步骤得到所需厚度和形状的间隔单元5，然后将具有间隔单元5的基板1与另一基板直接贴合，两个间隔单元5之间即形成液晶盒；通过光刻过程去控制间隔单元5的形状，通过控制光罩的形状和控制光照的时间，从而能够有效的控制间隔单元5所述的厚度和形状，保证了间隔单元5能够提供有效的支撑性能，有效的改善后续制程中外力作用在间隔单元5上导致主动开关2发生形变，而且能够很好的减少对主动开关2电性的影响，进一步的改善点灯出现暗点，使得显示面板显示效果更好，进一步的提高了显示面板的显示品质。
如图6所示，该实施方式公开的显示面板包括：基板1、设置在基板1上的主动开关2，覆盖设置在主动开关2上的保护层3，主动开关2上设置有间隔单元5，间隔单元5设在保护层3上，间隔单元5与保护层3的相对面之间设有第一透明电极层41，第一透明电极层41沿所述间隔单元5在保护层3上的正投影区域设置，能够有效的起到支撑作用的同时有效的节省耗材，有利于进一步的降低显示面板的生产成本，有效的提升显示面板的市场竞争力，能够有效的对间隔单元5进行支撑，有效的减小在后续制程中外力作用在间隔单元5上导致主动开关2发生形变，而且能够很好的减少对主动开关2电性的影响，进一步的改善点灯出现暗点，使得显示面板显示效果更好，进一步的提高了显示面板的显示品质。
间隔单元5横跨沟道25设置，这样间隔单元5可以在沟道25的两端形成有效的支撑，使得间隔单元5可以更加稳定的设置在第一透明电极层41上， 能够有效的防止间隔单元5发生位移，保证了液晶盒内的液晶能够有效的进行工作，从而保证显示面板的颜色和亮度更加的均匀，进一步的提高了显示面板的显示效果，使得产品竞争力更好的得到提升；而且间隔单元5的横截面为四边形，能够有效的防止间隔单元5的滚动，使得间隔单元5可以有效的固定在主动开关2上，而且很好的克服了球形的间隔材料容易聚集的情况，从而有效的避免坏点和彩色滤光片的损坏，更好的对彩色滤光片进行有效的保护，进一步的提高了显示面板的耐用性，使得显示面板的使用寿命更长。
间隔单元5与第一透明电极层41相接触的一端的宽度大于另一端的宽度，即间隔单元5底部宽度大于顶部，使得栅极21的制作更加的方便，成型更加稳定，良品率更高，而且使得间隔单元5底部的接触面积更大，保证了更好的粘接效果，使得间隔单元5的固定更加的牢固，其中间隔单元5的截面可选为梯形，特别是等腰梯形，使得在后段偏贴制程/薄化制程/按压测试等环节中，有效的减少外力作用在间隔单元5上进而对主动开关2进行挤压作用，保证主动开关2电性表现更好，有效的减少出现点灯暗点或按压暗点。
如图7所示，该实施方式公开的显示面板包括：基板1、设置在基板1上的主动开关2，覆盖设置在主动开关2上的保护层3，主动开关2上设置有间隔单元5，间隔单元5设在保护层3上，间隔单元5与保护层3的相对面之间设有透明电极层4，透明电极层4包括第二透明电极层42和第三透明电极层43，沟道25设在第二透明电极层42和第三透明电极层43之间，第二透明电极层42设在源极22上方的保护层3上，第三透明电极层43设在漏极23上方的保护层3上，第二透明电极层42和第三透明电极层43对间隔单元5进行支撑，能够有效的对间隔单元5进行支撑，有效的减小在后续制程中外力作用在间隔单元5上导致主动开关2发生形变，而且能够很好的减少对主动开关2电性的影响，进一步的改善点灯出现暗点，使得显示面板显示效果更好，进一步的提高了显示面板的显示品质；而且这种将透明电极层4设在沟道25的两端能够有效的降低制作难度，只需要在透明电极层4的制程光罩设计特定的位置进行曝光，保证成本不变的情况下使得间隔单元5可以得到更好的支撑，保证显示面板的更好的显示品质；不需要额外的原材料，降低原材料成本、存储成本，物料清单不需要增加新的材料，方便流程管理和采购，不需要额外的设备设置透明电极层4，后期蚀刻也不需要额外的设备和材料。
间隔单元5横跨沟道25设置，这样间隔单元5可以在沟道25的两端形成有效的支撑，使得间隔单元5可以更加稳定的设置在透明电极层4上，能够有效的防止间隔单元5发生位移，保证了液晶盒内的液晶能够有效的进行工作，从而保证显示面板的颜色和亮度更加的均匀，进一步的提高了显示面板的显示效果，使得产品竞争力更好的得到提升；而且间隔单元5的横截面为四边形，能够有效的防止间隔单元5的滚动，使得间隔单元5可以有效的固定在主动开关2上，而且很好的克服了球形的间隔材料容易聚集的情况，从而有效的避免坏点和彩色滤光片的损坏，更好的对彩色滤光片进行有效的保护，进一步的提高了显示面板的耐用性，使得显示面板的使用寿命更长。
在上述实施例中，所述基板1的材料可以选用玻璃、塑料透光材料等。
在上述实施例中，以液晶面板为例，液晶面板包括阵列基板和彩膜基板(CF)，所述阵列基板与彩膜基板相对设置，所述阵列基板与彩膜基板之间设有液晶和间隔单元，所述阵列基板上设有主动开关，主动开关例如为薄膜晶体管(TFT)，彩膜基板上设有彩色光阻层，彩色光阻层及主动开关可形成于同一基板上。
在某些实施例中，显示面板例如为液晶面板、OLED(Organic Light-Emitting Diode)面板、QLED(Quantum Dot Light Emitting Diodes)面板、等离子面板、平面型面板、曲面型面板等，在此不做限定。
以上内容是结合具体的实施方式对本申请所作的进一步详细说明，不能认定本申请的具体实施只局限于这些说明。对于本申请所属技术领域的普通技术人员来说，在不脱离本申请构思的前提下，还可以做出若干简单推演或替换，都应当视为属于本申请的保护范围。

Claims (20)

  1. 一种显示面板的制造方法，包括步骤：
    提供一第一基板；
    在所述第一基板上形成主动开关；
    提供一第二基板，与所述第一基板相对设置；
    在所述第一基板或所述第二基板上形成一色阻层；以及
    在所述第一基板或所述第二基板上形成一间隔单元；
    其中，所述间隔单元包含两种不同波长光起始剂的感光间隔材料。
  2. 如权利要求1所述的显示面板的制造方法，其中所述感光间隔材料包括溶剂、粘合剂、单体、低聚体、光起始剂和添加剂。
  3. 如权利要求2所述的显示面板的制造方法，其中所述溶剂的组分比例为60％～80％。
  4. 如权利要求2所述的显示面板的制造方法，其中所述粘合剂的组分比例为10％～20％。
  5. 如权利要求2所述的显示面板的制造方法，其中所述单体的组分比例为10％～15％。
  6. 如权利要求2所述的显示面板的制造方法，其中所述单体包括光活性单体。
  7. 如权利要求6所述的显示面板的制造方法，其中所述光活性单体为丙烯酸脂类或环氧类的聚合物。
  8. 如权利要求2所述的显示面板的制造方法，其中所述低聚体的组分比例小于1％。
  9. 如权利要求2所述的显示面板的制造方法，其中所述光起始剂包括长波长起始剂和短波长起始剂，所述长波长起始剂的组分比例为2％～4％，所述短波长起始剂的组分比例为1％。
  10. 如权利要求2所述的显示面板的制造方法，其中所述添加剂的组分比例小于1％。
  11. 如权利要求2所述的显示面板的制造方法，其中所述添加剂为活化剂、抗氧化剂、抗絮凝剂、分散剂、流平剂和稳定剂中的一种或多种。
  12. 一种显示面板的制造方法，包括步骤：
    提供一第一基板；
    在所述第一基板上形成主动开关；
    提供一第二基板，与所述第一基板相对设置；
    在所述第一基板或所述第二基板上形成一色阻层；以及
    在所述第一基板或所述第二基板上形成一间隔单元；
    所述间隔单元包含两种不同波长光起始剂的感光间隔材料；
    其中，所述感光间隔材料包括溶剂、粘合剂、单体、低聚体、光起始剂和添加剂；所述溶剂的组分比例为60％～80％；所述粘合剂的组分比例为10％～20％；所述单体的组分比例为10％～15％；所述低聚体的组分比例小于1％。
  13. 如权利要求12所述的显示面板的制造方法，其中所述光起始剂包括长波长起始剂和短波长起始剂，所述长波长起始剂的组分比例为2％～4％，所述短波长起始剂的组分比例为1％。
  14. 如权利要求12所述的显示面板的制造方法，其中所述添加剂的组分比例小于1％。
  15. 如权利要求12所述的显示面板的制造方法，其中所述单体包括光活性单体。
  16. 如权利要求15所述的显示面板的制造方法，其中所述光活性单体为丙烯酸脂类或环氧类的聚合物。
  17. 如权利要求12所述的显示面板的制造方法，其中所述添加剂为活化剂、抗氧化剂、抗絮凝剂、分散剂、流平剂和稳定剂中的一种或多种。
  18. 一种显示面板，包括：
    一第一基板，在所述第一基板上设置主动开关；
    一第二基板，与所述第一基板相对设置；以及
    色阻层，设在所述第一基板或所述第二基板上；
    其中，所述第一基板或所述第二基板上设有间隔单元，所述间隔单元包含两种不同波长光起始剂的感光间隔材料。
  19. 如权利要求18所述的显示面板，其中所述感光间隔材料包括溶剂、粘合剂、单体、低聚体、光起始剂和添加剂；所述溶剂的组分比例为60％～80％；所述粘合剂的组分比例为10％～20％；所述单体的组分比例为10％～15％；所 述低聚体的组分比例小于1％。
  20. 如权利要求19所述的显示面板，其中所述光起始剂包括长波长起始剂和短波长起始剂，所述长波长起始剂的组分比例为2％～4％，所述短波长起始剂的组分比例为1％。
PCT/CN2017/115865 2017-08-17 2017-12-13 显示面板及其制造方法 Ceased WO2019033637A1 (zh)

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