WO2020143459A1 - 显示面板及其制作方法和框胶固化机台 - Google Patents

显示面板及其制作方法和框胶固化机台 Download PDF

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Publication number
WO2020143459A1
WO2020143459A1 PCT/CN2019/128580 CN2019128580W WO2020143459A1 WO 2020143459 A1 WO2020143459 A1 WO 2020143459A1 CN 2019128580 W CN2019128580 W CN 2019128580W WO 2020143459 A1 WO2020143459 A1 WO 2020143459A1
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WIPO (PCT)
Prior art keywords
substrate
light
display panel
shielding
area
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PCT/CN2019/128580
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English (en)
French (fr)
Inventor
杨春辉
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惠科股份有限公司
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Publication of WO2020143459A1 publication Critical patent/WO2020143459A1/zh

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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
    • G02F1/1303—Apparatus specially adapted to the manufacture of LCDs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/06—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation
    • B05D3/061—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation using U.V.
    • B05D3/065—After-treatment
    • B05D3/067—Curing or cross-linking the coating
    • 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
    • G02F1/133512—Light shielding layers, e.g. black matrix
    • 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

Definitions

  • the present application relates to the field of display technology, and in particular, to a display panel, a manufacturing method thereof, and a frame glue curing machine.
  • the display panel manufacturing process includes four Big process: array process, color film process, box process, module process.
  • the box forming process includes alignment film engineering, frame glue coating, liquid crystal drip infusion, vacuum sticking box and cutting processes.
  • the purpose of the frame glue coating is to connect the color filter substrate and the array substrate to prevent the liquid crystal from leaking and keep the peripheral cell thick.
  • the frame glue needs to be cured after being coated, but curing of the frame glue requires a long time, which prolongs the manufacturing time of the display panel, making it difficult to greatly improve the manufacturing efficiency of the display panel.
  • the purpose of the present application is to provide a display panel, a manufacturing method thereof and a frame glue curing machine, which can cure frame glue from both sides of the first substrate and the second substrate, saving production time and improving production efficiency.
  • the present application discloses a display panel, which is divided into a display area and a non-display area.
  • the display panel includes: a first substrate; a second substrate opposite to the first substrate; and a sealant provided in the non-display area.
  • the sealant connects the first substrate and the second substrate; the area where the sealant is correspondingly provided in the non-display area is a sealant area; wherein, within the sealant area, the first substrate includes a first light-shielding structure; the second The substrate includes a second light-shielding structure, and the first light-shielding structure and the second light-shielding structure are hollowed out, and the non-hollow-out portion of the second light-shielding structure corresponds to the hollowed-out portion of the first light-shielding structure.
  • the present application also discloses a sealant curing machine for curing the above display panel, which includes: a sealant coating device that applies a sealant to the first substrate or the second substrate; an alignment device that connects the first substrate to The second substrate is fixed oppositely; the ultraviolet irradiation device irradiates the frame glue area with ultraviolet light.
  • This application also discloses a method for manufacturing a display panel, including the steps of:
  • the non-hollow position of the second light-shielding structure corresponds to the first light-shielding structure.
  • the frame glue is cured quickly. This design allows the frame glue to be fully cured even if it is not thermally cured; it reduces the requirements for thermal curing, saves the production time of the display panel, and improves the production efficiency of the display panel.
  • FIG. 1 is a schematic diagram of a display panel according to an embodiment of the present application.
  • FIG. 2 is a schematic diagram of a display panel according to another embodiment of the present application.
  • FIG. 3 is a schematic diagram of a display panel according to another embodiment of the present application.
  • FIG. 4 is a schematic diagram of a display panel according to another embodiment of the present application.
  • FIG. 5 is an enlarged view at A in FIG. 1 of an embodiment of the present application.
  • FIG. 6 is an enlarged view at B in FIG. 2 according to an embodiment of the present application.
  • FIG. 7 is an enlarged view at C of FIG. 3 according to an embodiment of the present application.
  • FIG. 8 is a schematic diagram of another display panel according to an embodiment of the present application.
  • FIG. 9 is a schematic diagram of another display panel according to an embodiment of the present application.
  • FIG. 10 is a schematic diagram of another display panel according to an embodiment of the present application.
  • FIG. 11 is a schematic diagram of a frame curing machine for curing a display panel according to an embodiment of the present application.
  • FIG. 12 is a flowchart of a method of manufacturing a display panel according to an embodiment of the present application.
  • first and second are used only for descriptive purposes and cannot be understood as indicating relative importance, or implicitly indicating the number of technical features indicated.
  • the features defined as “first” and “second” may expressly or implicitly include one or more of the features; “multiple” means two or more.
  • the term “comprising” and any variations thereof are meant to be non-exclusive and one or more other features, integers, steps, operations, units, components, and/or combinations thereof may be present or added.
  • connection should be understood in a broad sense, such as fixed connection, detachable connection, or integral connection; may be mechanical connection It can also be an electrical connection; it can be directly connected, indirectly connected through an intermediary, or connected within two components.
  • an embodiment of the present application discloses a display panel 100, which is divided into a display area 110 and a non-display area 120.
  • the display panel 100 includes: a first substrate 200; and the first substrate 200 is relatively disposed The second substrate 300; the sealant 400 disposed in the non-display area 120, the sealant 400 connecting the first substrate 200 and the second substrate 300; the area in the non-display area 120 corresponding to the sealant 400 is the sealant Area 130; wherein, corresponding to the sealant area 130, the first substrate 200 includes a first light-shielding structure 210; the second substrate 300 includes a second light-shielding structure 310, and the first light-shielding structure 210 and the second light-shielding structure 310 are Hollow, the non-hollow part of the second shading structure 310 corresponds to the hollow part of the first shading structure 210.
  • the curing of the sealant 400 is divided into a thermal curing type and an ultraviolet curing type.
  • the heat curing type has high strength, but the curing time is long.
  • the ultraviolet curing type has fast curing speed, but low strength.
  • TFT-LCD Thi Film Transistor Liquid Crystal
  • both a thermosetting resin and an ultraviolet curing resin are added.
  • UV curing is performed immediately. Ultraviolet curing is mainly to quickly cure the periphery of the frame glue 400, so that even if it contacts the liquid crystal, it will not cause defects.
  • heat curing is performed to strengthen the adhesive force of the frame glue 400.
  • the first light-shielding structure 210 is hollowed to form a plurality of hollow holes 213, and the area where the hollow holes 213 communicate is a mesh-shaped light-shielding body 216.
  • the mesh shading body 216 of the first shading structure 210 is relatively stable, the horizontal and vertical branches on the mesh shading body 216 play a supporting role, and the mesh shading body 216 facilitates the arrangement of metal wires .
  • the second light-shielding structure 310 includes a plurality of sheet-shaped light-shielding bodies 311; the sheet-shaped light-shielding bodies 311 are not in communication with each other.
  • the plurality of unconnected sheet-shaped light-shielding bodies 311 makes the irradiation range of ultraviolet light radiated from the second substrate 300 side larger.
  • the sheet-shaped light-shielding body 311 of the second light-shielding structure 310 corresponds one-to-one to the plurality of hollow holes 213 of the first light-shielding structure 210;
  • the regions where the sheet-shaped light-shielding bodies 311 of the second light-shielding structure 310 are not connected correspond to each other.
  • the sheet-shaped light-shielding bodies 311 correspond to the hollow holes 213 one by one, so that the display panel 100 does not cause light leakage.
  • the second substrate 300 may be a color filter substrate
  • the first light-shielding structure 210 is a black color resist
  • the black matrix (BM) of the display area 110 may be formed by the same process.
  • the first substrate 200 may be an array substrate, and the second light-shielding structure 310 is a metal trace, such as a fan-out line or other peripheral traces; it may be connected to scan lines, data lines, and common electrode lines of the display area 110 of the display panel 100 It is formed in the same process and located in the same metal layer; of course, the second light-shielding structure 310 may be a black color resist (BM), and the black matrix (BM) of the display area 110 may be formed in the same process.
  • BM black color resist
  • the first light-shielding structure 210 may not be completely hollowed out, and only partially hollowed out, that is, the first substrate 200 includes a first hollowed-out area 214 and a light-shielded area 215, and the second substrate 300 includes a second The hollowed-out area 312 and the light-transmitting area 313, the first hollowed-out area 214 corresponds to the second hollowed-out area 312; the light-shielding area 215 of the first substrate 200 corresponds to the light-transmitted area 313 of the second substrate 300,
  • the non-hollowed-out area of the second hollowed-out area 312 is opposite to the hollowed-out area of the first hollowed-out area 214; the light-shielding area 215 is formed of a metal or black color resister, completely shaded; the light-transmitting area 313 is just the light-shielded area 215 Obscured.
  • the mesh light-shielding body 216 of the first substrate 200 includes a plurality of first trunks 211 and a plurality of second trunks 212, the first trunks 211 and the second trunks 212 are perpendicular to each other, the phase The area surrounded by the two adjacent first trunks 211 and the two adjacent second trunks 212 forms the hollow hole 213.
  • the first trunk 211 and the second trunk 212 are perpendicular to each other, so that the first light-shielding structure 210 has a regular mesh shape, conforms to the conventional shape of the display panel 100, and forms a regular mesh structure.
  • the width of the first stem 211 is X 0, wherein m 3 m ⁇ X 0 ⁇ 30.
  • the width of the first main body 211 is set within the size range of 3 micrometers ⁇ X 0 ⁇ 30 micrometers, which will not be too narrow and prone to breakage and misalignment, thereby causing light leakage; nor will it be too wide to cause light-transmitting parts Reduce; At the same time, it also ensures the position of the common electrode line and the signal line on the first trunk 211.
  • the width of the second stem 212 is Y 0, wherein m 3 m ⁇ Y 0 ⁇ 30.
  • the width of the second trunk 212 is set within the size range of 3 micrometers ⁇ Y 0 ⁇ 30 micrometers, which will not be too narrow and prone to breakage and misalignment, thereby causing light leakage; nor will it be too wide to cause light-transmitting parts Reduce; At the same time, it also ensures the position of the common electrode line and the signal line on the second trunk 212.
  • the first trunk 211 and the second trunk 212 have different widths.
  • the width of the first main body 211 and the second main body 212 are different.
  • the width of the first main body 211 and the second main body 212 can be flexibly arranged according to the size of the display panel 100 required, to Cooperate with the layout of the wiring on the display panel 100.
  • the hollow hole 213 is rectangular, the length of the hollow hole 213 is M, where 2.5 microns ⁇ M ⁇ 25 microns; the width of the hollow hole 213 is N, where 2.5 microns ⁇ N ⁇ 25 microns.
  • the length and width of the hollow hole 213 are within the range of 2.5 microns ⁇ M ⁇ 25 microns, to ensure that the hollow hole 213 will not be too large, which will cause light leakage in the display panel 100; and the size of the hollow hole 213 is guaranteed
  • the widths of the first trunk 211 and the second trunk 212 are within a suitable range.
  • each of the sheet-shaped light-shielding bodies 311 and each of the hollow holes 213 have the same shape and the same size.
  • the sheet-shaped light-shielding body 311 just covers the hollow hole 213 for light leakage, so that the purpose of fully irradiating the frame glue 400 with ultraviolet light can be achieved without causing light leakage in the display panel 100, and can fully Saves the manufacturing cost of the sheet-shaped light-shielding body 311, thereby saving the manufacturing cost of the display panel 100.
  • the thickness of the second light-shielding structure 310 is equal to the thickness of the first light-shielding structure 210.
  • the thickness of the first light-shielding structure 210 and the second light-shielding structure 310 are equal, so that no matter which side of the first substrate 200 and the second substrate 300 is irradiated with ultraviolet light, when the incident angle of ultraviolet light is large, it will not Because the thickness of the first light-shielding structure 210 and the second light-shielding structure 310 is not uniform, the shadow area projected on the sealant 400 by the first light-shielding structure 210 and the second light-shielding structure 310 is not uniform, and the ultraviolet light is not irradiated partly The case of the sealant 400 occurs; and the thickness of the first light-shielding structure 210 and the second light-shielding structure 310 are the same, which can make the design of ultraviolet light irradiation easier and reduce the factors that need to be considered.
  • the area of the sheet-shaped light-shielding body 311 is larger than the area of the hollow hole 213.
  • the area of the sheet-shaped light-shielding body 311 is larger than the area of the hollow hole 213.
  • the difference between the width of the sheet-shaped light-shielding body 311 and the hollow hole 213 is 1/5 to 1/3 of the width of the first trunk 211; the difference between the length of the sheet-shaped light-shielding body 311 and the hollow hole 213 is the second trunk 212 1/5 ⁇ 1/3 of the width.
  • the length and width of the sheet-shaped shading body 311 are slightly larger than the length and width of the hollow hole 213, and are 1/5 to 1/3 of the width of the first trunk 211 and the second trunk 212, so that the sheet-shaped shading The body 311 can completely cover the hollow hole 213, so that the display panel 100 is opaque, and the sheet-shaped light-shielding body 311 is not too wide or too large, so as to avoid that part of the frame glue 400 is not exposed to ultraviolet light.
  • the width of the first trunk 211 is 30 ⁇ m
  • the width of the second trunk 212 is 30 ⁇ m
  • the width of the sheet-shaped light-shielding body 311 is X
  • the length is W
  • the width of the hollow hole 213 is Y
  • the length Is V where, XY ⁇ 10 microns; WV ⁇ 10 microns.
  • This design also takes into account the consideration of alignment accuracy.
  • the alignment accuracy in the first direction is ⁇
  • the alignment accuracy in the second direction is ⁇ , where , XY ⁇ 2 ⁇ ; WV ⁇ 2 ⁇ .
  • the area of the sheet-shaped light-shielding body 311 is larger than the area of the hollow hole 213 to avoid Inaccurate position of the box caused by the error, which leads to the light leakage problem of the display panel 100;
  • the width difference between the sheet-shaped light-shielding body 311 and the hollow hole 213 is twice the accuracy of vertical alignment, and the sheet-shaped light-shielding body 311 and the hollow hole 213
  • the difference in length is 2 times the horizontal accuracy, when the first substrate 200 and the second substrate 300 are formed into a box, regardless of whether the direction of the box-forming error of the box-forming instrument is up, down, left or right, after the box No light leakage phenomenon occurs in the display panel 100, which ensures the quality of the display panel 100.
  • the horizontal alignment accuracy is 0 ⁇ 10 ⁇ m
  • the vertical alignment accuracy is 0 ⁇ 10 ⁇ m
  • the width of the sheet-shaped light-shielding body 311 is X and the length is W; the width of the hollow hole 213 is Y and the length is V; the wavelength of ultraviolet light is ⁇ ; where, 2 ⁇ XY ⁇ , 2 ⁇ WV ⁇ .
  • the difference between the sheet-shaped light-shielding body 311 and the first main body 211 and the second main body 212 is greater than or equal to the wavelength of ultraviolet light, and less than or equal to twice the wavelength of ultraviolet light.
  • the light can be irradiated to the sealant 400 corresponding to the overlap of the sheet-shaped light-shielding body 311 and the hollow hole 213, so that every sealant 400 in the display panel 100 can be fully irradiated with ultraviolet light, and the purpose of rapid curing can be achieved, saving
  • the curing time of the frame glue 400 improves the production efficiency; considering the setting range of the above three width overlapping regions, those skilled in the art can select the actual production value of the overlapping region according to the actual needs and taking into account the above three.
  • a display panel 100 which includes an array substrate, a color filter substrate, and a sealant 400; the array substrate is provided with a mesh-shaped light-shielding body 216
  • the color filter substrate is provided with sheet-shaped light-shielding bodies 311 which are not connected to each other, and the sheet-shaped light-shielding bodies 311 just correspond to the light leakage places on the mesh-shaped light-shielding body 216 one by one.
  • one side of the array substrate or the color filter substrate can be optionally irradiated with ultraviolet light; and the ultraviolet light can be simultaneously irradiated from both sides of the array substrate and the color filter substrate, and the sheet-shaped light-shielding body 311 is just in line with the mesh
  • the light leaks on the shading body 216 correspond to each other, so that the frame glue 400 can be fully irradiated with ultraviolet light, saving thermal curing, accelerating the curing speed of the frame glue 400, and improving the production efficiency of the display panel 100.
  • a sealant curing machine 500 for curing the above display panel 100 which includes: a sealant coating device 510 for the first substrate 200 or the second substrate 300 performs the coating of the sealant 400; the alignment device 520 fixes the first substrate 200 and the second substrate 300 oppositely; and the ultraviolet irradiation device 530 irradiates the sealant region 130 with ultraviolet light.
  • a sealant coating device 510 for the first substrate 200 or the second substrate 300 performs the coating of the sealant 400
  • the alignment device 520 fixes the first substrate 200 and the second substrate 300 oppositely
  • the ultraviolet irradiation device 530 irradiates the sealant region 130 with ultraviolet light.
  • no thermal curing device is provided in the frame curing machine 500.
  • the thermal curing time is longer, generally sixty minutes, and the local machine irradiating the display panel 100 in this application is not provided with thermal curing
  • the device can greatly shorten the time required to cure the sealant 400; in addition, if the UV curing strength is not high, the width of the sealant 400 can be correspondingly increased to increase the sealant 400 and the first substrate 200 and the second substrate 300 contact area.
  • the sealant curing machine 500 for curing the display panel includes two ultraviolet irradiation devices 530; the one ultraviolet irradiation device 530 is disposed on a side corresponding to the direction of the first substrate 200 of the display panel 100, Another ultraviolet irradiation device 530 is disposed on a side corresponding to the direction of the second substrate 300 of the display panel 100.
  • the frame glue curing machine 500 is provided with two ultraviolet irradiation devices 530, and the frame glue curing machine 500 can simultaneously irradiate both sides of the first substrate 200 and the second substrate 300 of the display panel 100 in this application. This greatly saves the time for ultraviolet light irradiation from one side of the display panel 100, improves the quality of the display panel 100, and speeds up the production progress of the display panel 100.
  • a method for manufacturing a display panel including the steps of:
  • S122 forming a second substrate, and forming a hollow second light-shielding structure on the second substrate;
  • the non-hollow position of the second light-shielding structure corresponds to the first light-shielding structure.
  • hollow structures are formed on both sides of the first substrate and the second substrate, which can be UV-cured from the first substrate side or from the second substrate side. UV curing is performed on the second substrate side, so that the frame glue is quickly cured, and at the same time, thermal curing is saved, the production time of the display panel is saved, and the production efficiency of the display panel is improved.
  • the technical solution of the present application can be widely used in various display panels, such as twisted nematic (TN) display panel, in-plane switching (IPS) display panel, vertical alignment type (Vertical Alignment, VA) ) Display panel, multi-quadrant vertical alignment (Multi-Domain Vertical Alignment, MVA) display panel, of course, it can also be other types of display panels, such as organic light-emitting diode (Organic Light-Emitting Diode, OLED) display panel, both The above scheme is applicable.
  • TN twisted nematic
  • IPS in-plane switching
  • VA Vertical Alignment
  • MVA multi-quadrant vertical alignment
  • OLED Organic Light-Emitting Diode

Abstract

本申请公开了一种显示面板及其制作方法和框胶固化机台；显示面板(100)包括第一基板(200)和第二基板(300)以及设置于非显示区(120)的框胶(400)；非显示区(120)中对应设置框胶(400)的区域为框胶区域(130)；对应框胶区域(130)内，第一基板(200)包括镂空的第一遮光结构(210)；第二基板(300)包括镂空的第二遮光结构(310)，第二遮光结构(310)的非镂空处与第一遮光结构(210)的镂空处相对应。

Description

显示面板及其制作方法和框胶固化机台
本申请要求于2019年1月9日提交中国专利局，申请号为CN201910019631.0，申请名称为“一种显示面板及其制作方法和框胶固化机台”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
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作方法和框胶固化机台。
背景技术
这里的陈述仅提供与本申请有关的背景信息，而不必然地构成现有技术。
随着科技的发展，显示面板越来越快速的深入人们的生活中，改变人们的生活方式，伴随着显示面板的不断推广应用，人们对于显示面板的质量要求逐步提高，显示面板的制程包括四大工艺：阵列工艺、彩膜工艺、成盒工艺、模组工艺。其中，成盒工艺包括取向膜工程、框胶涂布、液晶滴注、真空贴盒及切割等制程。框胶涂布的目的是连接彩膜基板和阵列基板，防止液晶发生泄漏，保持周边盒厚。
框胶涂布后需要进行固化，但是框胶固化需要较长的时间，延长了显示面板的制造时间，使得显示面板的制造效率难以大幅提升。
发明内容
本申请的目的是提供一种显示面板及其制作方法和框胶固化机台，可以从第一基板和第二基板两侧进行框胶固化，节约生产时间，提升生产效率。
本申请公开了一种显示面板，划分为显示区和非显示区，所述显示面板包括：第一基板；与第一基板相对设置的第二基板；以及设置于非显示区的框胶，所述框胶连接第一基板与第二基板；所述非显示区中对应设置框胶的区域为框胶区域；其中，对应所述框胶区域内，第一基板包括第一遮光结构；第二基板包括第二遮光结构，且第一遮光结构和第二遮光结构为镂空，所述第二遮光结构的非镂空处与第一遮光结构的镂空处相对应。
本申请还公开了一种固化上述显示面板的框胶固化机台，包括：框胶涂布装置，对第一基板或第二基板进行框胶的涂布；对位装置，将第一基板与第二基板对置固定；紫外照射装置，对框胶区域进行紫外光照射。
本申请还公开了一种显示面板的制作方法，包括步骤：
形成第一基板，在第一基板上形成镂空的第一遮光结构；
形成第二基板，在第二基板上形成镂空的第二遮光结构；
在第一基板或第二基板上涂布框胶并对置成盒；以及
从第一基板与第二基板的两侧同时对框胶进行紫外光固化照射，完成框胶的固化；
其中，所述形成第一基板和第二基板的步骤中，所述第二遮光结构不镂空位置与第一遮光结构相对应。
相对于在框胶区域内涂布框胶后，进行框胶固化，可选择从第一基板，如阵列基板的一侧照射紫外光，进行框胶(Seal)紫外固化，在框胶涂布的区域，阵列基板侧的不透光层采用镂空设计，方便紫外光透过，而第二基板，如彩膜基板侧在显示区(AA)以外则是用黑色色阻覆盖，只能从一侧照射紫外光，不透光处照射不到紫外光，使得照射不到的地方只能通 过热固化才能固定，且热固化时间较长，使得显示面板的生产效率较慢；而本申请在第一基板和第二基板两侧都做镂空结构，既可以从第一基板侧进行紫外固化，也可以从第二基板侧进行紫外固化，当然更可以同时从第一基板和第二基板侧进行紫外固化，使得框胶迅速固化，这样的设计使得即使不热固化，也能使得框胶充分固化；减少了对热固化的要求，节约显示面板的生产时间，提升显示面板的生产效率。
附图说明
所包括的附图用来提供对本申请实施例的进一步的理解，其构成了说明书的一部分，用于例示本申请的实施方式，并与文字描述一起来阐释本申请的原理。显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。在附图中：
图1是本申请的一实施例的一种显示面板的示意图；
图2是本申请的另一实施例的一种显示面板的示意图；
图3是本申请的另一实施例的一种显示面板的示意图；
图4是本申请的另一实施例的一种显示面板的示意图；
图5是本申请的一实施例的图1中A处的放大图；
图6是本申请的一实施例的图2中B处的放大图；
图7是本申请的一实施例的图3中C处的放大图；
图8是本申请的一实施例的另一种显示面板的示意图；
图9是本申请的一实施例的另一种显示面板的示意图；
图10是本申请的一实施例的另一种显示面板的示意图；
图11是本申请的一实施例的固化显示面板的框胶固化机台的示意图；
图12是本申请的一实施例的显示面板的制作方法的流程图。
具体实施方式
需要理解的是，这里所使用的术语、公开的具体结构和功能细节，仅仅是为了描述具体实施例，是代表性的，但是本申请可以通过许多替换形式来具体实现，不应被解释成仅受限于这里所阐述的实施例。
在本申请的描述中，术语“第一”、“第二”仅用于描述目的，而不能理解为指示相对重要性，或者隐含指明所指示的技术特征的数量。由此，除非另有说明，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；“多个”的含义是两个或两个以上。术语“包括”及其任何变形，意为不排他的包含，可能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。
另外，“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的术语，是基于附图所示的方位或相对位置关系描述的，仅是为了便于描述本申请的简化描述，而不是指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，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，或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。
下面参考附图和可选的实施例对本申请作进一步说明。
如图1至图11所示，本申请实施例公开了一种显示面板100，划分为显示区110和非显示区120，所述显示面板100包括：第一基板200；第一基板200相对设置的第二基板300；设置于非显示区120的框胶400，所述框胶400连接第一基板200与第二基板300；所述非显示区120中对应设置框胶400的区域为框胶区域130；其中，对应所述的框胶区域130内，第一基板200包括第一遮光结构210；第二基板300包括第二遮光结构310，且第一遮光结构210和第二遮光结构310为镂空，所述第二遮光结构310非镂空处与第一遮光结构210的镂空处相对应。
框胶400的固化分为热固化型和紫外固化型。热固化型强度高，但是固化时间长。紫外固化型固化速度快，但是强度低。相对于TFT-LCD(Thin Film Transistor Liquid Crystal Display，薄膜晶体管液晶显示面板)既添加了热固化树脂，又添加了紫外固化树脂。第一基板，与第二基板对盒后，随即进行紫外固化。紫外固化主要是让框胶400外围迅速固化，这样即使接触到液晶也不至于引起不良。紫外固化后，再进行热固化，加强框胶400的粘结力。
如图1所示，在框胶400区域内涂布框胶400后，进行框胶400固化，可选择从第一基板200，如阵列基板的一侧照射紫外光，进行框胶400(Seal)紫外固化，在框胶400涂布的区域，阵列基板侧的不透光层采用镂空设计，方便紫外光透过，而第二基板300，如彩膜基板侧在显示区110(AA)以外则是用黑色色阻覆盖，只能从一侧照射紫外光，不透光处照射不到紫外光，使得照射不到的地方只能通过热固化才能固定，且热固化时间较长，使得显示面板100的生产效率较慢；而本申请在第一基板200和第二基板300两侧都做镂空结构，既可以从第一基板200侧进行紫外固化，也可以从第二基板300侧进行紫外固化，当然更可以同时从第一基板200和第二基板300侧进行紫外固化，使得框胶400迅速固化，这样的设计使得即使不热固化，也能使得框胶400充分固化；减少了对热固化的要求，节约显示面板100的生产时间，提升显示面板100的生产效率。
在一实施例中，所述第一遮光结构210镂空形成多个镂空孔213，所述镂空孔213之间连通的区域为网状遮光体216。本方案中，所述第一遮光结构210的网状遮光体216较为稳定，网状遮光体216上的横纵支干起到了相互支撑的作用，且网状遮光体216便于金属线的排布。
在一实施例中，所述第二遮光结构310包括多个片状遮光体311；所述片状遮光体311之间不连通。本方案中，多个不连通的片状遮光体311使得从第二基板300侧照射过来的紫外光的照射范围更大。
在一实施例中，所述第二遮光结构310的片状遮光体311与第一遮光结构210的多个镂空孔213一一对应；所述第一遮光结构210的网状遮光体216与所述第二遮光结构310的片状遮光体311之间不连通的区域对应。本方案中，片状遮光体311与镂空孔213一一对应，使得显示面板100不会发生漏光现象。其中，第二基板300可以为彩膜基板，所述第一遮光结构210为黑色色阻，与显示区110的黑矩阵(BM)可以同制程形成。第一基板200可以为阵列基板，所述第二遮光结构310为金属走线，如扇出线或者其他外围走线；可以与显示面板100的显示区110的扫描线、数据线、公共电极线等在同一制程中形成，位于同一金属层；当然，也可以第二遮光结构310为黑色色阻(BM)，与显示区110的黑矩阵(BM)可以同制程形成。
当然，如图8至图10所示，其中第一遮光结构210也可不全部镂空，只做部分镂空，即第一基板200包括第一镂空区214和遮光区215，第二基板300包括第二镂空区312和透光区313，所述第一镂空区214与第二镂空区312相对应；所述第一基板200的遮光区215 与第二基板300的透光区313相对应，所述第二镂空区312的非镂空处于所述第一镂空区214的镂空处相对；所述遮光区215为金属或者黑色色阻形成，完全遮光；所述透光区313刚好为所述遮光区215所遮挡。
在一实施例中，所述第一基板200的网状遮光体216包括多个第一主干211与多个第二主干212，所述第一主干211与第二主干212相互垂直，所述相邻的两个第一主干211与相邻的两个第二主干212围成的区域形成所述的镂空孔213。本方案中，第一主干211与第二主干212相互垂直，使得第一遮光结构210为规则的网状，符合显示面板100的常规形状，形成形态规则的网状结构。
在一实施例中，所述第一主干211宽度为X 0，其中，3微米≤X 0≤30微米。本方案中，第一主干211宽度设置于3微米≤X 0≤30微米的尺寸范围之内，既不会过窄而易发生断裂、错位，从而漏光；也不会过宽而导致透光部分减少；同时也保证了公共电极线和讯号线在第一主干211上的设置的位置。
在一实施例中，所述第二主干212的宽度为Y 0，其中，3微米≤Y 0≤30微米。本方案中，第二主干212宽度。本方案中，第二主干212宽度设置于3微米≤Y 0≤30微米的尺寸范围之内，既不会过窄而易发生断裂、错位，从而漏光；也不会过宽而导致透光部分减少；同时也保证了公共电极线和讯号线在第二主干212上的设置的位置。
在一实施例中，所述第一主干211与第二主干212的宽度不同。本方案中，第一主干211与第二主干212的宽度不同，在实际操作中，可以根据需要的显示面板100的尺寸，灵活的设计排布第一主干211和第二主干212的宽度，以配合显示面板100上走线的布局。
在一实施例中，所述镂空孔213为矩形，所述镂空孔213的长为M，其中，2.5微米≤M≤25微米；所述镂空孔213的宽为N，其中，2.5微米≤N≤25微米。本方案中，镂空孔213的长度和宽度处于2.5微米≤M≤25微米的范围之内，保证镂空孔213不会过大，而引起显示面板100出现漏光的现象；同时镂空孔213的大小保证第一主干211和第二主干212的宽度处于适宜的范围。
在一实施例中，每个所述片状遮光体311与每个所述镂空孔213的形状相同，大小相等。本方案中，所述片状遮光体311刚刚好遮住漏光的镂空孔213，使得既能够达到紫外光充分照射框胶400的目的，又不会造成显示面板100出现漏光的现象，且能够充分的节约片状遮光体311的制造成本，从而节约显示面板100的制造成本。
在一实施例中，所述第二遮光结构310的厚度与所述第一遮光结构210的厚度相等。本方案中，第一遮光结构210与第二遮光结构310的厚度相等，使得不论从第一基板200和第二基板300哪一侧进行紫外光光照，当紫外光入射角度大的时候，不会因为第一遮光结构210和第二遮光结构310的厚度不均，而引起第一遮光结构210和第二遮光结构310投射到框胶400上的阴影面积不均，而引起紫外光照射不到一部分框胶400的情况发生；并且第一遮光结构210与第二遮光结构310的厚度一致，可以使得在紫外光照射的设计更加简便，减少需要考虑的变因。
如图7所示，在一实施例中，所述片状遮光体311的面积的大于所述镂空孔213的面积，本方案中，片状遮光体311的面积大于镂空孔213的面积，第一基板200与第二基板300对位后，片状遮光体311与网状遮光体216之间形成一部分重叠，预留出一部分的片状遮光体311的面积，而防止显示面板100发生漏光。
其中，片状遮光体311与镂空孔213的宽度的差值为第一主干211宽度的1/5～1/3；片状遮光体311与镂空孔213的长度的差值为第二主干212宽度的1/5～1/3。本方案中，片状遮光体311的长度和宽度都略微大于镂空孔213的长度和宽度，并为第一主干211和第二主 干212宽度的1/5～1/3，使得在片状遮光体311能够完全覆盖住镂空孔213，使得显示面板100不透光的同时，片状遮光体311也不会过宽过大，而避免部分的框胶400照射不到紫外光。
例如，假设第一主干211的宽度为30微米，第二主干212的宽度为30微米，所述片状遮光体311的宽度为X，长度为W；所述镂空孔213的宽度为Y，长度为V；其中，X-Y≥10微米；W-V≥10微米。
这样的设计还兼顾了对位精度的考虑，在把第一基板200和第二基板300进行对位时，设第一方向的对位精度为θ，第二方向的对位精度为δ，其中，X-Y≥2θ；W-V≥2δ。本方案中，因为在实际操作过程的第一基板200与第二基板300对盒时的对盒仪器会有误差，所以片状遮光体311的面积大于镂空孔213的面积可以避免对盒仪器的误差引起的对盒位置不精确，而导致的显示面板100漏光的问题；片状遮光体311和镂空孔213的宽度差为竖直对位精度的2倍，片状遮光体311和镂空孔213的长度差为水平精度的2倍，则当第一基板200与第二基板300成盒时，不论成盒仪器的成盒误差方向是向上、向下、向左还是向右，对盒后的显示面板100都不会出现漏光现象，保证了显示面板100的品质。如图7所示，水平对位精度0＜δ≤10微米、竖直对位精度0＜θ≤10微米；d1≥θ，d3≥θ；d2≥δ；d4≥δ。
在一实施例中，所述片状遮光体311的宽度为X，长度为W；所述镂空孔213的宽度为Y，长度为V；紫外光的波长为λ；其中，2λ≥X-Y≥λ，2λ≥W-V≥λ。本方案中，紫外光存在衍射现象，片状遮光体311与第一主干211和第二主干212的差值大于等于紫外光的波长，小于等于紫外光的波长的二倍，从而紫外光衍射的光可以照射到片状遮光体311与镂空孔213重叠处对应的框胶400，使得显示面板100中的每一处框胶400都充分的得到紫外光的照射，而达到迅速固化的目的，节省框胶400的固化时间，提升生产效率；以上三种宽度重叠区的设置范围的考虑，本领域技术人员可以根据实际的需要，兼顾上面的三种，选出实际的重叠区域的生产值。
如图2至图7所示，作为本申请的另一实施例，公开了一种显示面板100，包括阵列基板、彩膜基板和框胶400；所述阵列基板上设置有网状遮光体216，所述彩膜基板上设置有相互不连通的片状遮光体311，所述片状遮光体311刚好与所述网状遮光体216上的漏光处一一对应。本方案中，可以任选阵列基板或者彩膜基板的一侧来照射紫外光；更加可以从阵列基板和彩膜基板的两侧同时照射紫外光，且片状遮光体311刚好与所述网状遮光体216上的漏光处一一对应，使得框胶400可以充分得到紫外光的照射，节省了热固化，加快了框胶400的固化速度，提升了显示面板100的生产效率。
如图11所示，作为本申请的另一实施例，公开了一种固化上述显示面板100的框胶固化机台500，包括：框胶涂布装置510，对第一基板200或第二基板300进行框胶400的涂布；对位装置520，将第一基板200与第二基板300对置固定；紫外照射装置530，对框胶区域130进行紫外光照射。本方案中，框胶固化机台500中不设置热固化装置，在热固化时，热固化时间较久，一般为六十分钟，照射本申请中的显示面板100的本机台不设置热固化装置，可以极大的缩短框胶400固化所需要的时间；另外，如紫外固化强度不高，那么可以对应的增大框胶400的宽度来增加框胶400与第一基板200和第二基板300的接触面积。
在一实施例中，所述固化显示面板的框胶固化机台500包括两个紫外照射装置530；所述其中一个紫外照射装置530设置在对应显示面板100的第一基板200的方向一侧，另一个紫外照射装置530设置在对应显示面板100的第二基板300的方向一侧。本方案中，框胶固 化机台500设置有两个紫外照射装置530，框胶固化机台500可以对本申请中的显示面板100的第一基板200和第二基板300两侧同时进行紫外光照射，大大的节约从显示面板100的一侧进行紫外光照射的时间，提升显示面板100的品质，加快显示面板100的生产进度。
如图12所示，作为本申请的另一实施例，公开了一种显示面板的制作方法，包括步骤：
S121:形成第一基板，在第一基板上形成镂空的第一遮光结构；
S122:形成第二基板，在第二基板上形成镂空的第二遮光结构；
S123:在第一基板或第二基板上涂布框胶对置成盒；
S124:从第一基板与第二基板的两侧同时对框胶进行紫外光固化照射，完成框胶的固化；
其中，所述形成第一基板和第二基板的步骤中，所述第二遮光结构不镂空位置与第一遮光结构相对应。
本方案中，在第一基板和第二基板两侧都做镂空结构，既可以从第一基板侧进行紫外固化，也可以从第二基板侧进行紫外固化，然更可以同时从第一基板和第二基板侧进行紫外固化，使得框胶迅速固化，同时节省热固化，节约显示面板的生产时间，提升显示面板的生产效率。
需要说明的是，本方案中涉及到的各步骤的限定，在不影响具体方案实施的前提下，并不认定为对步骤先后顺序做出限定，写在前面的步骤可以是在先执行的，也可以是在后执行的，甚至也可以是同时执行的，只要能实施本方案，都应当视为属于本申请的保护范围。
本申请的技术方案可以广泛用于各种显示面板，如扭曲向列型(Twisted Nematic，TN)显示面板、平面转换型(In-Plane Switching，IPS)显示面板、垂直配向型(Vertical Alignment，VA)显示面板、多象限垂直配向型(Multi-Domain Vertical Alignment，MVA)显示面板，当然，也可以是其他类型的显示面板，如有机发光二极管(Organic Light-Emitting Diode，OLED)显示面板，均可适用上述方案。
以上内容是结合具体的可选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 (18)

  1. 一种显示面板，划分为显示区和非显示区，所述显示面板包括：
    第一基板；
    第二基板；与所述第一基板相对设置；以及
    框胶，设置于非显示区，连接所述第一基板与第二基板；所述非显示区中对应设置框胶的区域为框胶区域；
    对应所述框胶区域内，所述第一基板包括第一遮光结构；所述第二基板包括第二遮光结构，且所述第一遮光结构和所述第二遮光结构为镂空，所述第二遮光结构的非镂空处与第一遮光结构的镂空处相对应。
  2. 如权利要求1所述的一种显示面板，其中，所述第一遮光结构镂空形成多个镂空孔，所述镂空孔之间连通的区域为网状遮光体。
  3. 如权利要求2所述的一种显示面板，其中，所述第二遮光结构包括多个片状遮光体；所述片状遮光体之间不连通。
  4. 如权利要求3所述的一种显示面板，其中，所述第二遮光结构的片状遮光体与第一遮光结构的多个镂空孔一一对应；所述第一遮光结构的网状遮光体与所述第二遮光结构的片状遮光体之间不连通的区域对应。
  5. 如权利要求2所述的一种显示面板，其中，所述第一基板的网状遮光体包括多个第一主干与多个第二主干，所述第一主干与第二主干相互垂直，相邻的两个所述第一主干与相邻的两个第二主干围成的区域形成所述镂空孔。
  6. 如权利要求5所述的一种显示面板，其中，所述第一主干与第二主干的宽度不同。
  7. 如权利要求3所述的一种显示面板，其中，所述片状遮光体与所述镂空孔的形状相同，大小相等。
  8. 如权利要求3所述的一种显示面板，其中，所述片状遮光体的面积的大于所述镂空孔的面积。
  9. 如权利要求3所述的一种显示面板，其中，所述片状遮光体的宽度为X，长度为W；所述镂空孔的宽度为Y，长度为V，其中，X-Y≥10微米；W-V≥10微米。
  10. 如权利要求3所述的一种显示面板，其中，所述片状遮光体的宽度为X，长度为W；所述镂空孔的宽度为Y，长度为V；紫外光的波长为λ；其中，2λ≥X-Y≥λ，2λ≥W-V≥λ。
  11. 如权利要求2所述的一种显示面板，其中，所述镂空孔为矩形，所述镂空孔的长为M，其中，2.5微米≤M≤25微米。
  12. 如权利要求11所述的一种显示面板，其中，所述镂空孔的宽为N，其中，2.5微米≤N≤25微米。
  13. 如权利要求1所述的一种显示面板，其中，所述第二遮光结构的厚度与所述第一遮光结构的厚度相等。
  14. 如权利要求5所述的一种显示面板，其中，所述第二遮光结构包括多个片状遮光体；所述片状遮光体之间不连通；所述片状遮光体与所述镂空孔的宽度的差值为所述第一主干宽度的1/5～1/3；所述片状遮光体与所述镂空孔的长度的差值为所述第二主干宽度的1/5～1/3。
  15. 如权利要求3所述的一种显示面板，其中，所述片状遮光体的宽度为X，长度为W；所述镂空孔的宽度为Y，长度为V；在第一基板和第二基板进行对位时，设第一方向的对位精度为θ，第二方向的对位精度为δ，其中，X-Y≥2θ；W-V≥2δ。
  16. 一种固化显示面板的框胶固化机台，所述显示面板划分为显示区和非显示区，所述显示面板包括：
    第一基板；
    第二基板；与所述第一基板相对设置；以及
    框胶，设置于非显示区，连接所述第一基板与第二基板；所述非显示区中对应设置框胶的区域为框胶区域；
    对应所述框胶区域内，第一基板包括第一遮光结构；第二基板包括第二遮光结构，且第一遮光结构和第二遮光结构为镂空，所述第二遮光结构的非镂空处与第一遮光结构的镂空处相对应；
    所述框胶固化机台包括：
    框胶涂布装置，对第一基板或第二基板进行框胶的涂布；
    对位装置，将第一基板与第二基板对置固定；以及
    紫外照射装置，对框胶区域进行紫外光照射。
  17. 如权利要求16所述的一种固化显示面板的框胶固化机台，其中，所述固化显示面板的框胶固化机台包括两个紫外照射装置；所述其中一个紫外照射装置设置在对应显示面板的第一基板的方向一侧，另一个紫外照射装置设置在对应显示面板的第二基板的方向一侧。
  18. 一种显示面板的制作方法，包括步骤：
    形成第一基板，在第一基板上形成镂空的第一遮光结构；
    形成第二基板，在第二基板上形成镂空的第二遮光结构；
    在第一基板或第二基板上涂布框胶并对置成盒；以及
    从第一基板与第二基板的两侧同时对框胶进行紫外光固化照射，完成框胶的固化；
    其中，所述形成第一基板和第二基板的步骤中，所述第二遮光结构不镂空位置与第一遮光结构相对应。
PCT/CN2019/128580 2019-01-09 2019-12-26 显示面板及其制作方法和框胶固化机台 WO2020143459A1 (zh)

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