WO2021168966A1 - 显示面板及其制备方法、转印装置 - Google Patents

显示面板及其制备方法、转印装置 Download PDF

Info

Publication number
WO2021168966A1
WO2021168966A1 PCT/CN2020/081593 CN2020081593W WO2021168966A1 WO 2021168966 A1 WO2021168966 A1 WO 2021168966A1 CN 2020081593 W CN2020081593 W CN 2020081593W WO 2021168966 A1 WO2021168966 A1 WO 2021168966A1
Authority
WO
WIPO (PCT)
Prior art keywords
alignment
transfer device
display panel
transfer
holes
Prior art date
Application number
PCT/CN2020/081593
Other languages
English (en)
French (fr)
Inventor
吴云飞
林凡
Original Assignee
武汉华星光电技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 武汉华星光电技术有限公司 filed Critical 武汉华星光电技术有限公司
Priority to US16/955,126 priority Critical patent/US11487162B2/en
Publication of WO2021168966A1 publication Critical patent/WO2021168966A1/zh

Links

Classifications

    • 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
    • G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
    • G02F1/13378—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by treatment of the surface, e.g. embossing, rubbing or light irradiation
    • 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
    • G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
    • G02F1/13378—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by treatment of the surface, e.g. embossing, rubbing or light irradiation
    • G02F1/133788—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by treatment of the surface, e.g. embossing, rubbing or light irradiation by light irradiation, e.g. linearly polarised light photo-polymerisation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F17/00—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for
    • B41F17/24—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on flat surfaces of polyhedral articles
    • B41F17/26—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on flat surfaces of polyhedral articles by rolling contact
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F16/00—Transfer printing apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F3/00—Cylinder presses, i.e. presses essentially comprising at least one cylinder co-operating with at least one flat type-bed
    • B41F3/46—Details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F9/00—Rotary intaglio printing presses
    • 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
    • G02F1/1303—Apparatus specially adapted to the manufacture of LCDs
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K2323/00—Functional layers of liquid crystal optical display excluding electroactive liquid crystal layer characterised by chemical composition
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K2323/00—Functional layers of liquid crystal optical display excluding electroactive liquid crystal layer characterised by chemical composition
    • C09K2323/02—Alignment layer characterised by chemical composition
    • 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
    • G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers

Definitions

  • This application relates to the field of display technology, and in particular to a display panel, a preparation method thereof, and a transfer device.
  • the embodiments of the present application provide a display panel, a preparation method thereof, and a transfer device.
  • the transfer plate of the transfer device is provided with at least one groove, so that the transfer plate of the transfer device is in the process of coating the alignment liquid. , Effectively prevent the orientation liquid from being coated in the groove, so that when using the transfer plate of the transfer device to coat the substrate with the orientation liquid, the through hole corresponding to the blind hole can be formed in the area corresponding to the groove, thereby avoiding the original
  • the oriented film blocks the blind holes to transmit light, thereby increasing the light transmittance of the blind holes and improving the overall performance of the blind hole equipment.
  • an embodiment of the present application provides a transfer device.
  • the transfer device includes a plate shell and a transfer plate arranged on a side wall of the plate shell, and at least one groove is provided on the transfer plate.
  • At least two grooves are provided on the transfer plate.
  • the groove is circular or regular polygonal shape.
  • an embodiment of the present application provides a method for manufacturing a display panel, the method including:
  • the transfer device includes a plate shell and a transfer plate arranged on the side wall of the plate shell, and at least one groove is provided on the transfer plate;
  • the transfer device is used to coat an alignment liquid on a substrate to form an alignment film with through holes, wherein the through holes correspond to the blind holes.
  • the transfer preparation device includes:
  • An alignment liquid is applied to the transfer plate of the transfer device.
  • using the transfer device to apply an alignment liquid on a substrate to form an alignment film with through holes includes:
  • the transfer device is rolled on the substrate to align the groove with the blind hole.
  • the coating an alignment liquid on the substrate to form an alignment film with through holes includes:
  • the alignment layer is mainly cured to form the alignment film.
  • the main curing of the alignment layer to form an alignment film includes:
  • the alignment layer is irradiated with infrared rays to cure the alignment layer.
  • At least two grooves are provided on the transfer plate.
  • the groove is circular or regular polygon
  • the present application provides a display panel.
  • the display panel includes a functional layer and an orientation film.
  • the functional layer is provided with blind holes
  • the orientation film layer is provided with through holes
  • the blind holes are used for It is light-transmissive
  • the blind hole corresponds to the through hole
  • the through hole is prepared by the method for manufacturing the display panel.
  • An embodiment of the present application provides a transfer device, which includes a plate shell and a transfer plate arranged on the side wall of the plate shell, and at least one groove is provided on the transfer plate.
  • at least one groove is provided on the transfer plate of the transfer device, so that the transfer plate of the transfer device effectively prevents the alignment liquid from being coated in the groove during the process of coating the alignment liquid, thereby using
  • the transfer plate of the transfer device coats the substrate with the alignment liquid
  • the through hole corresponding to the blind hole can be formed in the area corresponding to the groove, thereby avoiding the original alignment film's blocking effect on the blind hole from passing through the light.
  • the light transmittance of blind holes is increased, and the overall performance of devices with blind holes is improved.
  • FIG. 1 is a schematic structural diagram of an embodiment of a transfer device provided by an embodiment of the application
  • FIG. 2 is a schematic flowchart of an embodiment of a method for manufacturing a display panel provided by an embodiment of the application.
  • first and second are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features.
  • features defined with “first” and “second” may explicitly or implicitly include one or more features.
  • “multiple” means two or more than two, unless otherwise specifically defined.
  • connection should be understood in a broad sense, unless otherwise clearly specified and limited.
  • it can be a fixed connection or a detachable connection.
  • Connected or integrally connected it can be mechanically connected, or electrically connected or can communicate with each other; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal communication of two components or the interaction of two components relation.
  • an intermediate medium it can be the internal communication of two components or the interaction of two components relation.
  • the "on" or “under” of the first feature of the second feature may include direct contact between the first and second features, or may include the first and second features Not in direct contact but through other features between them.
  • the "above”, “above” and “above” of the first feature on the second feature include the first feature directly above and obliquely above the second feature, or it simply means that the first feature is higher in level than the second feature.
  • the “below”, “below” and “below” of the second feature of the first feature include the first feature directly below and obliquely below the second feature, or it simply means that the level of the first feature is smaller than the second feature.
  • the embodiments of the present application provide a display panel, a manufacturing method thereof, and a transfer device. Detailed descriptions are given below.
  • the present application provides a transfer device, which includes a plate shell and a transfer plate arranged on the side wall of the plate shell, and at least one groove is provided on the transfer plate.
  • FIG. 1 is a schematic structural diagram of an embodiment of a transfer device provided by an embodiment of the application.
  • the transfer device 10 includes a plate body 101 and a transfer plate arranged on the side wall of the plate body 102. At least one groove 103 is provided on the transfer plate.
  • the transfer device 10 can be used to apply alignment liquid to the display panel.
  • the transfer device 10 adopts a relief printing method.
  • the transfer device 10 can also include an alignment liquid nozzle 104, The doctor roller 105, the anilox roller 106, and the stage 107, in which the alignment liquid spray head 104 contains the alignment liquid to be used, wherein the printing surface of the transfer plate 102 can be composed of a large number of small raised points.
  • the "valley" between the dots can absorb and store the alignment liquid and transfer it to the substrate.
  • At least one groove 103 is provided on the transfer plate 102 of the transfer device 10, so that the transfer plate 102 of the transfer device 10 effectively prevents coating in the groove 103 during the coating process of the alignment liquid.
  • There is an alignment liquid so when the transfer plate 102 of the transfer device 10 is used to apply the alignment liquid to the substrate, a through hole corresponding to the blind hole can be formed in the area corresponding to the groove 103, thereby avoiding the blind alignment of the original alignment film.
  • the blocking effect of the light through the hole increases the light transmittance of the blind hole and improves the overall performance of the device with the blind hole.
  • the carrier also carries a substrate 108.
  • the orientation liquid stored in a container with a certain pressure is applied to the anilox roller through the nozzle and passes through the doctor roller.
  • the rotation of the anilox roller uniformly coats the alignment liquid on the anilox roller; the rotation of the anilox roller transfers the alignment liquid evenly to the transfer plate 102; the transfer plate 102 is fixed on the plate body 101 and rotates
  • the plate carrier 101 and the horizontally moving glass substrate base transfer the alignment liquid to the substrate.
  • the doctor roll and the anilox roll are in close contact, and there is a certain amount of press-in. Ceramic materials can be used for the anilox roller, which is not limited here.
  • the surface of the anilox roller is not full of hexagonal honeycomb-shaped holes along a certain angle.
  • the transfer plate 102 in order to pursue a full screen and diversify the functions of the device, more and more sensing and shooting instruments need to be installed under the screen. For this reason, at least two grooves are provided on the transfer plate 102. 103.
  • three grooves 103 may be provided, and the three grooves 103 correspond to the required three blind holes.
  • the three blind holes can be used for shooting, facial recognition, infrared sensing, etc. Not limited.
  • the groove 103 has a circular shape or a regular polygon shape.
  • the regular polygon may be a regular hexagon or a regular octagon, which is not limited herein.
  • the present application also provides a method for preparing a display panel.
  • the method includes: preparing a functional layer, wherein the functional layer is provided with a blind Prepare the transfer device 10, wherein the transfer device 10 is the transfer device 10 of the above-mentioned embodiment; the transfer device 10 is used to coat the alignment liquid on the substrate to form an alignment film with through holes, wherein The hole corresponds to the blind hole.
  • FIG. 2 is a schematic flowchart of an embodiment of a method for manufacturing a display panel provided by an embodiment of the application, wherein the method includes:
  • the functional layer is provided with blind holes.
  • the transfer device is the transfer device described in the above embodiment.
  • the through hole corresponds to the blind hole.
  • the alignment liquid may be a polyimide material, which is not limited herein.
  • the display panel may be a liquid crystal display panel, in which the liquid crystal is a liquid crystal, and the orientation of the liquid crystal molecules naturally dripped into the liquid crystal cell is disordered, which does not meet the liquid crystal molecular arrangement requirements of the liquid crystal cell design. Therefore, it is necessary to coat two glass substrates with an alignment layer of liquid crystal molecules, that is, an alignment film, and then rub the directional grooves on the alignment film through a rubbing process, and the liquid crystal molecules at the interface are affected by these grooves.
  • the groove is "anchored" and oriented.
  • the method for manufacturing the display panel of the embodiment of the present invention may also include any other The necessary steps, for example, coating the alignment liquid on the substrate and forming the alignment film, before the method further includes: cleaning the substrate to remove the ash layer on the substrate.
  • At least one groove 103 is provided on the transfer plate 102 of the transfer device 10, so that the transfer plate 102 of the transfer device 10 effectively prevents coating in the groove 103 during the coating process of the alignment liquid.
  • There is an alignment liquid so when the transfer plate 102 of the transfer device 10 is used to apply the alignment liquid to the substrate, a through hole corresponding to the blind hole can be formed in the area corresponding to the groove 103, thereby avoiding the blind alignment of the original alignment film.
  • the blocking effect of the light through the hole increases the light transmittance of the blind hole and improves the overall performance of the device with the blind hole.
  • preparing the transfer plate 102 includes: preparing the transfer device 10; and coating an alignment liquid on the transfer plate 102 of the transfer device 10.
  • the transfer device 10 is used to coat the alignment liquid on the substrate to form an alignment film with through holes, including: rolling the transfer device 10 on the substrate to align the groove 103 with the blind hole .
  • coating the alignment liquid on the substrate to form an alignment film with through holes includes: coating the alignment liquid on the substrate; pre-curing the alignment liquid to form an alignment layer; Cured to form an alignment film.
  • the alignment liquid contains more than 90% of the solvent, it is necessary to perform thermal curing when forming the alignment film, and use high temperature to volatilize the solvent.
  • most of the soluble orientations used are oligomers or polyamic acid, these oligomers need to be chemically reacted at a high temperature above 220°C to form imidized polyimides. Therefore, the printed alignment solution is firstly a pre-curing process. There are two heating methods: hot stage and infrared.
  • the former uses close-type pillars to support the glass substrate to form non-contact heating, and uses a hot air bath to volatilize a part of the solvent to form a uniform high-viscosity wet film on the rough surface of the array substrate/color filter substrate; the latter’s infrared method is non-contact although
  • the supporting pillar position is prone to heat accumulation points, which causes the alignment solvent to volatilize too fast, and the surrounding alignment solvent is supplemented, resulting in a thicker alignment film at the pillar position.
  • two sets of movable pillars are used alternately to avoid heat accumulation and cause pillar mura.
  • the main curing of the alignment layer to form the alignment film includes: irradiating the alignment layer with infrared rays to cure the alignment layer.
  • the heating method used in the main curing is mostly infrared. Crystal rods or metal rods are used as pillars inside, and hot air is continuously blown in to keep the temperature deviation inside the chamber within 3°C, so as to ensure that the substrate surface temperature is uniform, so that The amination rate is almost the same. Since the solvent has almost evaporated, even if the pillars cause local overheating, there will be no local Mura defects.
  • the main process parameters of the main curing are also temperature and time, and the main reference standard is the imidization rate. Generally, the reaction of polyimide polymer requires a high temperature above 220°C. The longer the time, the higher the conversion rate. When it reaches about 80%, it is considered that the target has been achieved. If the time is too long or the temperature is too high, the imidization rate can reach 100%, but at this time, the surface of the oriented film is brittle, and it is easy to produce debris in the subsequent rubbing process, forming Zara dust particles.
  • the present application also provides a display panel.
  • the display panel includes a functional layer and an alignment film, and the functional layer is provided with a blind Holes, through holes are provided on the oriented film layer, blind holes are used for light transmission, and the blind holes correspond to the through holes.
  • the blind hole can be used to provide a camera under the screen, thereby increasing the screen-to-body ratio of the electronic product.
  • the electronic product can be a mobile phone, a computer, or a TV, which is not limited here.
  • the display panel of the embodiment of the present invention may also include any other necessary structures as required, such as gates.
  • the insulating layer, the interlayer insulating layer, etc. are not specifically limited here.
  • At least one groove 103 is provided on the transfer plate 102 of the transfer device 10, so that the transfer plate 102 of the transfer device 10 effectively prevents coating in the groove 103 during the coating process of the alignment liquid.
  • There is an alignment liquid so when the transfer plate 102 of the transfer device 10 is used to apply the alignment liquid to the substrate, a through hole corresponding to the blind hole can be formed in the area corresponding to the groove 103, thereby avoiding the blind alignment of the original alignment film.
  • the blocking effect of the light through the hole increases the light transmittance of the blind hole and improves the overall performance of the device with the blind hole.
  • the through holes are prepared by the method for manufacturing the display panel of the second aspect.
  • the substrate may be an array substrate or a color filter substrate, which is not limited herein.
  • the array substrate includes a plurality of thin-film transistors distributed in an array.
  • Thin-film transistors are one of the types of field-effect transistors.
  • the rough manufacturing method is to deposit various thin films on the substrate.
  • Thin film transistors play a very important role in the performance of the display device;
  • the color film substrate is the color filter substrate, which is a key part of the colorization of liquid crystal displays, generally including glass substrate, black matrix, red/green/blue three primary colors Color resistance, flat layer and columnar spacers.

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Engineering (AREA)
  • Mathematical Physics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Manufacturing & Machinery (AREA)
  • Liquid Crystal (AREA)
  • Printing Methods (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

一种显示面板及其制备方法、转印装置，其中转印装置（10）的转印版（102）上设置有至少一个凹槽（103），使得转印版（102）在涂布取向液过程中，有效防止凹槽（103）内涂布有取向液，从而使用转印版（102）对基板（108）涂布取向液时，可以在凹槽（103）对应的区域形成与盲孔对应的通孔，从而避免了原有的取向膜对盲孔透过光线的阻挡作用，从而增大了盲孔光线的透过率，提高了带有盲孔设备的综合性能。

Description

显示面板及其制备方法、转印装置 技术领域
本申请涉及显示技术领域，尤其涉及显示面板及其制备方法、转印装置。
 背景技术
随着通信技术的发展，诸如智能手机等电子产品越来越普及。随着全面屏概念的普及，目前智能手机市场跟随国际知名终端厂商的节奏越来越趋于同质化，一波追求全屏化的浪潮中，全面屏和水滴屏等成为各大终端厂商的逐鹿重点，手机产品更加千篇一律。
 技术问题
但是由于技术的不足，其屏幕中的盲孔的透过率仍有很大的缺陷。
 技术解决方案
本申请实施例提供一种显示面板及其制备方法、转印装置，通过在转印装置的转印版上设置有至少一个凹槽，使得转印装置的转印版在涂布取向液过程中，有效防止凹槽内涂布有取向液，从而使用转印装置的转印版对基板涂布取向液时，可以在凹槽对应的区域形成与盲孔对应的通孔，从而避免了原有的取向膜对盲孔透过光线的阻挡作用，从而增大了盲孔光线的透过率，提高了带有盲孔设备的综合性能。
一方面，本申请实施例提供一种转印装置，所述转印装置包括版胴和设置于所述版胴侧壁上的转印版，所述转印版上设置有至少一个凹槽。
在一些实施例中，，所述转印版上设置有至少两个凹槽。
在一些实施例中，所述凹槽为圆形或正多边形形状.
第二方面，本申请实施例提供一种显示面板的制备方法，所述方法包括：
准备功能层，其中，所述功能层上设有盲孔；
准备转印装置，其中，所述转印装置包括版胴和设置于所述版胴侧壁上的转印版，所述转印版上设置有至少一个凹槽；
采用所述转印装置，在基板上涂布取向液，以形成带通孔的取向膜，其中，所述通孔与所述盲孔对应。
在一些实施例中，所述准备转印装置，包括：
准备转印装置；
在所述转印装置的所述转印版上涂布取向液。
在一些实施例中，所述采用所述转印装置，在基板上涂布取向液，以形成带有通孔的取向膜，包括：
在所述基板上滚动所述转印装置，以将所述凹槽与所述盲孔对应。
在一些实施例中，所述在基板上涂布取向液，以形成带有通孔的取向膜，包括：
在基板上涂布取向液；
对所述取向液进行预固化，形成取向层；
对所述取向层进行主固化，形成所述取向膜。
在一些实施例中，所述对所述取向层进行主固化，形成取向膜，包括：
采用红外线照射所述取向层，对所述取向层进行固化。
在一些实施例中，所述转印版上设置有至少两个凹槽。
在一些实施例中，所述凹槽为圆形或正多边形
第三方面，本申请提供一种显示面板，所述显示面板包括功能层和取向膜,所述功能层上设有盲孔，所述取向膜层上设有通孔，所述盲孔用于透光，所述盲孔和所述通孔对应，所述通孔采用所述显示面板的制备方法制备得到的。
 有益效果
本申请实施例提供的一种转印装置，该转印装置包括版胴和设置于版胴侧壁上的转印版，转印版上设置有至少一个凹槽。本申请实施例通过在转印装置的转印版上设置有至少一个凹槽，使得转印装置的转印版在涂布取向液过程中，有效防止凹槽内涂布有取向液，从而使用转印装置的转印版对基板涂布取向液时，可以在凹槽对应的区域形成与盲孔对应的通孔，从而避免了原有的取向膜对盲孔透过光线的阻挡作用，从而增大了盲孔光线的透过率，提高了带有盲孔设备的综合性能。
 附图说明
下面结合附图，通过对本申请的具体实施方式详细描述，将使本申请的技术方案及其它有益效果显而易见。
图1为本申请实施例提供的转印装置的一个实施例结构示意图；
图2为本申请实施例提供的显示面板的制备方法的一个实施例流程示意图。
 本发明的实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述。显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
在本申请的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”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特征。在本申请的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。
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，也可以是电连接或可以相互通讯；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或两个元件的相互作用关系。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。
在本申请中，除非另有明确的规定和限定，第一特征在第二特征之“上”或之“下”可以包括第一和第二特征直接接触，也可以包括第一和第二特征不是直接接触而是通过它们之间的另外的特征接触。而且，第一特征在第二特征“之上”、“上方”和“上面”包括第一特征在第二特征正上方和斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”包括第一特征在第二特征正下方和斜下方，或仅仅表示第一特征水平高度小于第二特征。
下文的公开提供了许多不同的实施方式或例子用来实现本申请的不同结构。为了简化本申请的公开，下文中对特定例子的部件和设置进行描述。当然，它们仅仅为示例，并且目的不在于限制本申请。此外，本申请可以在不同例子中重复参考数字和/或参考字母，这种重复是为了简化和清楚的目的，其本身不指示所讨论各种实施方式和/或设置之间的关系。此外，本申请提供了的各种特定的工艺和材料的例子，但是本领域普通技术人员可以意识到其他工艺的应用和/或其他材料的使用。
本申请实施例提供一种显示面板及其制备方法、转印装置。以下分别进行详细说明。
首先，本申请提供一种转印装置，该转印装置包括版胴和设置于版胴侧壁上的转印版，转印版上设置有至少一个凹槽。
请参阅图1至图2，图1为本申请实施例提供的转印装置的一个实施例结构示意图，其中，该转印装置10包括版胴101和设置于版胴侧壁上的转印版102，转印版上设置有至少一个凹槽103。
本实施例中，转印装置10可用于对显示面板涂布取向液，该转印装置10采用的是凸版印刷方式，如图1所示，该转印装置10还可以包括取向液喷头104、刮刀辊105、网纹辊106、和载台107，其中取向液喷头104中盛装有待使用的取向液，其中，转印版102的印刷表面可以设置有大量的微小凸起点组成，在这些凸起网点之间的“谷底”可以吸附存储取向液并转印到基板上，而且，为了提高该印刷版印刷的均匀性，一般在使用印刷版之前，可以用γ-丁内酯成分侵泡，以改善转印版102与取向液的浸润性，从而实现良好的印刷均匀性。
本申请实施例通过在转印装置10的转印版102上设置有至少一个凹槽103，使得转印装置10的转印版102在涂布取向液过程中，有效防止凹槽103内涂布有取向液，从而使用转印装置10的转印版102对基板涂布取向液时，可以在凹槽103对应的区域形成与盲孔对应的通孔，从而避免了原有的取向膜对盲孔透过光线的阻挡作用，从而增大了盲孔光线的透过率，提高了带有盲孔设备的综合性能。
在具体实施时，如图1，载台上还承载着基板108，当在进行印刷的过程中，存储在具有一定压力的容器中的取向液，通过喷嘴涂在网纹辊上，经过刮刀辊的转动把取向液均匀地涂布到网纹辊上；再经过网纹辊的转动把取向液又均匀地转印到转印版102上；转印版102固定在版胴101上，转动的版胴101与水平移动的玻璃基板基础，就把取向液转印到基板上了。其中，刮刀辊和网纹辊之间是紧密接触的，而且存在一定的压入量。网纹辊可以使用陶瓷材料，在此不做限定，网纹辊的表面沿一定角度不满呈六角蜂窝状的小孔。
在一些实施例中，为了追求全面屏，在设备的功能多样化，越来越多的传感、拍摄仪器都需要进行屏下设置，为此，转印版102上设置有至少两个凹槽103，例如，可以设置有三个凹槽103，这三个凹槽103与所需要的三个盲孔相对应，这三个盲孔可以分别用于拍摄、面部识别和红外传感等，在此不作限定。
在一些实施例中，凹槽103为圆形或正多边形形状，其中，正多边形可以是正六边形，也可以是正八边形，在此不作限定。
为了更好实施本发明实施例中转印版102，在转印版102的基础之上，本申请还提供一种显示面板的制备方法，方法包括：准备功能层，其中，功能层上设有盲孔；准备转印装置10，其中，转印装置10为上述实施例的转印装置10；采用转印装置10，在基板上涂布取向液，以形成带通孔的取向膜，其中，通孔与盲孔对应。
请参阅图2，图2为本申请实施例提供的显示面板的制备方法的一个实施例流程示意图，其中，该方法包括：
201、准备功能层。
其中，功能层上设有盲孔。
202、准备转印装置。
其中，转印装置为上述实施例所描述的转印装置。
203、采用转印装置，在基板上涂布取向液，以形成带通孔的取向膜，
其中，通孔与盲孔对应。
本实施例中，该取向液可以是聚酰亚胺材料，在此不作限定。
本实施例中，一般该显示面板可以是液晶显示面板，其中液晶是一种液态晶体，自然滴注到液晶盒里面的液晶分子取向是杂乱的，不符合液晶盒设计的液晶分子排列要求。因此，需要在两片玻璃基板上，涂布一层液晶分子的取向层即取向膜，再通过摩擦工艺，在取向膜上面摩擦出方向性的沟槽，在此界面处液晶分子就被这些沟槽“锚定”而被取向。
需要说明的是，上述显示面板的制备方法实施例中仅描述了上述步骤，可以理解的是，除了上述步骤之外，本发明实施例显示面板的制备方法中，还可以根据需要包括任何其他的必要步骤，例如，在基板上涂布取向液并形成取向膜，之前，方法还包括：将基板进行清洗，除去基板上的灰层。
本申请实施例通过在转印装置10的转印版102上设置有至少一个凹槽103，使得转印装置10的转印版102在涂布取向液过程中，有效防止凹槽103内涂布有取向液，从而使用转印装置10的转印版102对基板涂布取向液时，可以在凹槽103对应的区域形成与盲孔对应的通孔，从而避免了原有的取向膜对盲孔透过光线的阻挡作用，从而增大了盲孔光线的透过率，提高了带有盲孔设备的综合性能。
在一些实施例中，准备转印版102，包括：准备转印装置10；在转印装置10的转印版102上涂布取向液。
在一些实施例中，采用转印装置10，在基板上涂布取向液，以形成带有通孔的取向膜，包括：在基板上滚动转印装置10，以将凹槽103与盲孔对应。
在一些实施例中，在基板上涂布取向液，以形成带有通孔的取向膜，包括：在基板上涂布取向液；对取向液进行预固化，形成取向层；对取向层进行主固化，形成取向膜。
本实施例中，由于取向液中含有90%以上的溶剂，因此在形成取向膜时，需要进行热固化，利用高温使溶剂挥发。此外，由于使用的可溶性取向大多是低聚物，或者是聚酰胺酸，需要在220℃以上的高温下这些低聚物才会发生化学反应，形成亚胺化的聚酰亚胺。因此，印刷的取向液在工艺上首先是预固化工艺。加热方式分成热台和红外线两种。前者利用贴近式支柱支撑玻璃基板形成非接触式加热，利用热空气浴来挥发一部分溶剂，使阵列基板/彩膜基板的粗糙表面上形成均匀的高黏度湿膜；后者的红外线方式虽然是非接触性加热，但是支撑的支柱位置容易产生热聚集点，使取向溶剂过快挥发，周围取向溶剂补充，导致支柱位置处取向膜偏厚。为此，通过可移动的两套支柱，交替使用，避免热聚集而引起支柱Mura。
在一些实施例中，对取向层进行主固化，形成取向膜，包括：采用红外线照射取向层，对取向层进行固化。
其中，主固化采用的加热方式大多是红外线方式，内部使用水晶棒或者金属棒作为支柱，同时不停吹入热风，保持腔室内部温度偏差在3℃以内，进而保证基板表面温度均匀，使得亚胺化率几乎一致。由于溶剂已经几乎挥发尽了，因此即使支柱引起局部过热，也不会出现局部Mura不良。主固化的主要工艺参数也是温度和时间，主要参考标准是亚胺化率。通常聚酰亚胺高分子发生反应需要220℃以上的高温，时间越长，转化率越高，达到80%左右时认为达到了目标。时间过长或者温度过高，亚胺化率可以达到100%，但是此时取向膜表面脆裂，在后续的摩擦工艺容易产生碎屑，形成Zara尘粒类不良。
为了更好实施本发明实施例中显示面板的制备方法，在显示面板的制备方法的基础之上，本申请还提供一种显示面板，显示面板包括功能层和取向膜,功能层上设有盲孔，取向膜层上设有通孔，盲孔用于透光，盲孔和通孔对应。
本实施例中，该盲孔可以用于实现屏下设置摄像头，从而提高电子产品的屏占比，该电子产品可以是手机、电脑或电视，在此不作限定。
需要说明的是，上述显示面板实施例中仅描述了上述结构，可以理解的是，除了上述结构之外，本发明实施例显示面板中，还可以根据需要包括任何其他的必要结构，例如栅极绝缘层、层间绝缘层等，具体此处不作限定。
本申请实施例通过在转印装置10的转印版102上设置有至少一个凹槽103，使得转印装置10的转印版102在涂布取向液过程中，有效防止凹槽103内涂布有取向液，从而使用转印装置10的转印版102对基板涂布取向液时，可以在凹槽103对应的区域形成与盲孔对应的通孔，从而避免了原有的取向膜对盲孔透过光线的阻挡作用，从而增大了盲孔光线的透过率，提高了带有盲孔设备的综合性能。
在一些实施例中，通孔采用如第二方面的显示面板的制备方法制备得到的。
在一些实施例中，基板可以是阵列基板，也可以是彩膜基板，在此不作限定。
本实施例中，阵列基板包括多个阵列分布的薄膜晶体管，薄膜晶体管（Thin-film transistor，TFT）是场效应晶体管的种类之一，大略的制作方式是在基板上沉积各种不同的薄膜，如半导体主动层、介电层和金属电极层。薄膜晶体管对显示器件的工作性能具有十分重要的作用；彩膜基板即彩色滤光片基板，它是液晶显示器彩色化的关键部品，一般包括玻璃衬底、黑矩阵、红/绿/蓝三基色色阻、平坦层和柱状隔垫物。
在上述实施例中，对各个实施例的描述都各有侧重，某个实施例中没有详述的部分，可以参见其他实施例的相关描述。
以上对本申请实施例所提供的一种显示面板及其制备方法、转印装置进行了详细介绍，本文中应用了具体个例对本申请的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本申请的技术方案及其核心思想；本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例的技术方案的范围。

Claims (11)

  1. 一种转印装置，其中，所述转印装置包括版胴和设置于所述版胴侧壁上的转印版，所述转印版上设置有至少一个凹槽。
  2. 如权利要求1所述的转印装置，其中，所述转印版上设置有至少两个凹槽。
  3. 如权利要求1所述的转印装置，其中，所述凹槽为圆形或正多边形。
  4. 一种显示面板的制备方法，其中，所述方法包括：
    准备功能层，其中，所述功能层上设有盲孔；
    准备转印装置，其中，所述转印装置包括版胴和设置于所述版胴侧壁上的转印版，所述转印版上设置有至少一个凹槽；
    采用所述转印装置，在基板上涂布取向液，以形成带通孔的取向膜，其中，所述通孔与所述盲孔对应。
  5. 如权利要求4所述的显示面板的制备方法，其中，所述准备转印装置，包括：
    准备转印装置；
    在所述转印装置的所述转印版上涂布取向液。
  6. 根据权利要求4显示面板的制备方法，其中，所述采用所述转印装置，在基板上涂布取向液，以形成带有通孔的取向膜，包括：
    在所述基板上滚动所述转印装置，以将所述凹槽与所述盲孔对应。
  7. 如权利要求4所述的显示面板的制备方法，其中，所述在基板上涂布取向液，以形成带有通孔的取向膜，包括：
    在基板上涂布取向液；
    对所述取向液进行预固化，形成取向层；
    对所述取向层进行主固化，形成所述取向膜。
  8. 如权利要求7所述的显示面板的制备方法，其中，所述对所述取向层进行主固化，形成取向膜，包括：
    采用红外线照射所述取向层，对所述取向层进行固化。
  9. 如权利要求4所述的显示面板的制备方法，其中，所述转印版上设置有至少两个凹槽。
  10. 如权利要求4所述的显示面板的制备方法，其中，所述凹槽为圆形或正多边形。
  11. 一种显示面板，其中，所述显示面板包括功能层和取向膜,所述功能层上设有盲孔，所述取向膜层上设有通孔，所述盲孔用于透光，所述盲孔和所述通孔对应，其中，所述通孔采用如权利要求4所述的显示面板的制备方法制备而成。
PCT/CN2020/081593 2020-02-27 2020-03-27 显示面板及其制备方法、转印装置 WO2021168966A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US16/955,126 US11487162B2 (en) 2020-02-27 2020-03-27 Display panel, manufacturing method thereof, and transfer printing device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202010126072.6 2020-02-27
CN202010126072.6A CN111190309B (zh) 2020-02-27 2020-02-27 显示面板及其制备方法、转印装置

Publications (1)

Publication Number Publication Date
WO2021168966A1 true WO2021168966A1 (zh) 2021-09-02

Family

ID=70706799

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/081593 WO2021168966A1 (zh) 2020-02-27 2020-03-27 显示面板及其制备方法、转印装置

Country Status (3)

Country Link
US (1) US11487162B2 (zh)
CN (1) CN111190309B (zh)
WO (1) WO2021168966A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111766745A (zh) * 2020-07-09 2020-10-13 武汉华星光电技术有限公司 一种显示面板、显示面板的制作方法及显示装置

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000075298A (ja) * 1998-08-27 2000-03-14 Sharp Corp 液晶表示装置
CN1378917A (zh) * 2001-03-29 2002-11-13 株式会社小村技术 薄膜形成用树脂凸版
US20030093172A1 (en) * 2001-10-25 2003-05-15 Lg. Philips Lcd Co., Ltd. Apparatus, mask, and method for printing alignment layer
CN102375268A (zh) * 2011-11-18 2012-03-14 南京中电熊猫液晶显示科技有限公司 配向版和使用该配向版形成配向膜层的方法
CN104849914A (zh) * 2015-05-26 2015-08-19 京东方科技集团股份有限公司 一种转印版
US20160320645A1 (en) * 2015-04-29 2016-11-03 Samsung Display Co., Ltd. Apparatus for manufacturing alignment layer, and method of manufacturing liquid crystal display device by using the same
CN108008578A (zh) * 2017-11-28 2018-05-08 深圳市华星光电技术有限公司 一种用于在基板上涂布配相膜的转印板及液晶显示面板
CN110068961A (zh) * 2019-04-25 2019-07-30 武汉华星光电技术有限公司 基板的配向涂布结构及方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100872561B1 (ko) * 2002-08-19 2008-12-08 하이디스 테크놀로지 주식회사 배향막 형성 전사판
US20050126410A1 (en) * 2003-11-07 2005-06-16 Samsung Electronics Co., Ltd. System and method for printing an alignment film

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000075298A (ja) * 1998-08-27 2000-03-14 Sharp Corp 液晶表示装置
CN1378917A (zh) * 2001-03-29 2002-11-13 株式会社小村技术 薄膜形成用树脂凸版
US20030093172A1 (en) * 2001-10-25 2003-05-15 Lg. Philips Lcd Co., Ltd. Apparatus, mask, and method for printing alignment layer
CN102375268A (zh) * 2011-11-18 2012-03-14 南京中电熊猫液晶显示科技有限公司 配向版和使用该配向版形成配向膜层的方法
US20160320645A1 (en) * 2015-04-29 2016-11-03 Samsung Display Co., Ltd. Apparatus for manufacturing alignment layer, and method of manufacturing liquid crystal display device by using the same
CN104849914A (zh) * 2015-05-26 2015-08-19 京东方科技集团股份有限公司 一种转印版
CN108008578A (zh) * 2017-11-28 2018-05-08 深圳市华星光电技术有限公司 一种用于在基板上涂布配相膜的转印板及液晶显示面板
CN110068961A (zh) * 2019-04-25 2019-07-30 武汉华星光电技术有限公司 基板的配向涂布结构及方法

Also Published As

Publication number Publication date
US11487162B2 (en) 2022-11-01
CN111190309A (zh) 2020-05-22
CN111190309B (zh) 2021-05-07
US20220137465A1 (en) 2022-05-05

Similar Documents

Publication Publication Date Title
CN100561317C (zh) 液晶面板的基板及形成配向膜的方法
CN100410777C (zh) 供喷墨法形成配向膜的基板结构及用其制作的液晶面板
WO2015043029A1 (zh) 一种配向膜材料及液晶显示面板的制作方法
WO2013071663A1 (zh) Tft-lcd用液晶配向膜的涂布方法
WO2021168966A1 (zh) 显示面板及其制备方法、转印装置
WO2015113373A1 (zh) 配向膜的制造方法
US6999148B2 (en) Apparatus, mask, and method for printing alignment layer
US7817238B2 (en) Liquid crystal display device and method of manufacturing the same
US20150346557A1 (en) Liquid crystal display devices and methods of manufacturing the same
CN108803152B (zh) 液晶显示面板及其制作方法
KR100480826B1 (ko) 액정표시장치의 배향막 형성장치
US7727577B2 (en) Apparatus and method for fabricating a liquid crystal display panel
US7193680B2 (en) Method for forming seal pattern of liquid crystal display device
KR20010030523A (ko) 액정 표시 장치 및 그의 제조 방법
US9880423B2 (en) Manufacturing method of alignment layer and manufacturing method of display substrate
CN111474754B (zh) 显示面板及其制备方法
KR20020096997A (ko) 액정 디스플레이 장치의 제조 방법
WO2015027622A1 (zh) 液晶显示器、液晶显示器用基板及其制作方法和制作装置
JP4332745B2 (ja) 液晶表示装置
KR101255703B1 (ko) 액정패널 제조 방법
KR20030094787A (ko) 액정표시소자의 배향막 인쇄장치 및 인쇄방법
JP2002031800A (ja) 液晶表示装置の製造方法および製造装置
JP2007003751A (ja) 液晶表示素子の製造方法
JP2001188357A (ja) 表示素子用基板への樹脂膜形成法及び装置、並びに該方法を用いた液晶表示装置の製造方法
US20130083415A1 (en) Color filter and method for manufacturing the same

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20921217

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20921217

Country of ref document: EP

Kind code of ref document: A1