WO2021238386A1 - 支撑条及掩膜版 - Google Patents

支撑条及掩膜版 Download PDF

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Publication number
WO2021238386A1
WO2021238386A1 PCT/CN2021/083859 CN2021083859W WO2021238386A1 WO 2021238386 A1 WO2021238386 A1 WO 2021238386A1 CN 2021083859 W CN2021083859 W CN 2021083859W WO 2021238386 A1 WO2021238386 A1 WO 2021238386A1
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WO
WIPO (PCT)
Prior art keywords
support bar
central axis
clamping
bar according
clamping portion
Prior art date
Application number
PCT/CN2021/083859
Other languages
English (en)
French (fr)
Inventor
臧公正
李文星
李伟丽
Original Assignee
昆山国显光电有限公司
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 昆山国显光电有限公司 filed Critical 昆山国显光电有限公司
Publication of WO2021238386A1 publication Critical patent/WO2021238386A1/zh
Priority to US17/733,450 priority Critical patent/US20220259714A1/en

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    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/04—Coating on selected surface areas, e.g. using masks
    • C23C14/042—Coating on selected surface areas, e.g. using masks using masks
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
    • C23C14/24—Vacuum evaporation

Definitions

  • This application relates to the field of vapor deposition technology, in particular to a support strip and a mask.
  • OLED Organic light-emitting diodes
  • the mask can effectively control the position of the organic material deposited on the substrate, and it has become a vital component in the evaporation process.
  • the mask generally includes a frame, a support bar, and a mask bar.
  • the supporting strip is fixed on the frame to support the mask strip and shield the gap of the mask strip.
  • the mask strip is provided with openings for vapor deposition.
  • the various embodiments of the present application provide a support bar and a mask.
  • a support bar which has a support area and a clamping area, and the support bar includes:
  • a body located in the support area the body has two sides in a first direction and two ends in a second direction;
  • the special-shaped part is located in the support area and is provided on at least one side of the main body;
  • the clamping part is located in the clamping area and is provided at the two ends of the body;
  • the body has a first central axis extending in the second direction
  • the clamping portion has a second central axis extending in the second direction
  • the support area has a first central axis extending in the second direction.
  • the first centroid principal axis extending in the direction;
  • the second central axis is located on a side of the first central axis close to the main axis of the first centroid;
  • the first direction and the second direction are perpendicular to each other, and both are parallel to the plane where the top surface of the body is located.
  • a mask which includes the support strip as described in any one of the above embodiments.
  • the second central axis is located on the side of the first central axis close to the first centroid main axis, that is, the line of action of the axial force is located at the first central axis close to the first centroid main axis. side.
  • the second central axis of the clamping part is offset to the side of the first central axis close to the first centroid main shaft, so that the line of action of the axial force is consistent with that of the first central axis.
  • the distance between the centroid principal axes is reduced.
  • the distance between the line of action of the axial force and the second centroid main axis of the entire support bar is reduced, that is, the eccentricity is reduced, and the bending moment is also reduced, thereby reducing the support bar in the non-stretching direction.
  • the position offset (that is, in the width direction of the support bar) improves the shielding effect of the support bar, and further improves the display effect of the screen after vapor deposition.
  • Figure 1 is a force diagram of a support bar with a symmetrical structure.
  • Figure 2 is a force diagram of a support bar with an asymmetric structure.
  • FIG. 3 is a top structural view of a support bar with a profiled portion including a protrusion provided by an embodiment of the application.
  • Fig. 4 is a top structural view of a support bar provided by another embodiment of the application.
  • Fig. 5 is an enlarged view of the support bar shown in Fig. 4 at A.
  • FIG. 6 is a top structural view of a support bar with a deformed portion including a recessed portion provided in another embodiment of the application.
  • FIG. 7 is a top structural view of a support bar with a deformed portion including a convex portion and a concave portion provided in another embodiment of the application.
  • FIG. 8 is a schematic top view of a mask provided by an embodiment of the application.
  • the support bar 20 when the support bar 20 is a symmetrical structure, the axial force P (tension force) acting on the clamping portion of the support bar is drawn from the point of force in the direction of the force (hereinafter referred to as the line of action) and The main axes of the centroids of the support bars 20 coincide. Therefore, the support bar will not shift in position in the non-stretching direction (for example, the X direction in FIG. 1).
  • the support bar 20 when one or more protrusions are added to the support bar 20 due to design requirements (the protrusions play the role of shielding the vapor deposition material, for example), the support bar 20 will become an asymmetric structure. At this time, the position of the line of action of the axial force P remains unchanged, while the position of the centroid main axis of the support bar 20 changes. In this way, the line of action of the axial force P and the main axis of the centroid of the support bar 20 are parallel to each other but do not overlap, resulting in an eccentric distance e between the line of action of the axial force P and the main axis of the centroid of the support bar 20.
  • bending moment M P*e.
  • the bending moment M causes the support bar 20 to bend and deform, resulting in a severe position shift in the non-stretching direction X, resulting in a poor shielding effect of the support bar 20, resulting in poor display of the screen formed after evaporation.
  • the Y direction in FIGS. 1 and 2 indicates the stretching direction
  • the X direction indicates the non-stretching direction.
  • a pair of orthogonal coordinate axes that make the product of inertia equal to zero is called the principal axis of inertia, or principal axis for short. If the main axis passes through the centroid of the plane figure, the main axis is called the centroid main axis, and the geometric center of the top surface of the support bar is the centroid of the top surface of the support bar.
  • the support bar 20 provided by an embodiment of the present application has a support area 21 and a clamping area 22.
  • the part of the support strip 20 located in the support area 21 functions to support the mask strip 30 and shield the gap of the mask strip 30.
  • the part of the support bar 20 located in the clamping area 22 is clamped when the web is stretched, so as to apply a tensile force (that is, the axial force P) to the support bar 20, and after the web is stretched, the support bar 20 is located in the clamping area
  • the part 22 is fixedly connected to the frame 10 of the mask 100. Specifically, after the netting is completed, the part of the support bar 20 located in the clamping area 22 may be welded to the frame 10.
  • the support bar 20 includes a main body 211, a special-shaped part and a clamping part.
  • the main body 211 and the deformed part are both arranged in the supporting area 21, and the clamping part is arranged in the clamping area 22.
  • the body 211 has two sides in the first direction and two ends in the second direction, and the first direction and the second direction are perpendicular to each other.
  • the deformed portion is formed on at least one side of the main body 211, and the clamping portion is provided at both ends of the main body 211. Both the first direction and the second direction are located on the plane where the top surface of the support bar 20 is located.
  • the first direction is the non-stretching direction, that is, the aforementioned X direction
  • the second direction is the stretching direction, that is, the aforementioned Y direction.
  • the support bar 20 is generally a long strip, the above-mentioned first direction is also the width direction of the support bar 20, and the second direction is also the length direction of the support bar 20.
  • the entire support bar 20 has an asymmetric structure, so that the line of action of the axial force P and the main axis of the centroid of the support bar 20 are parallel but not coincident, resulting in the line of action of the axial force P and the shape There is an eccentricity e between the main axes of the center.
  • the supporting area 21 has a first centroid main axis 214 extending in the second direction
  • the body 211 has a first central axis 2111 extending in the second direction. Due to the existence of the special-shaped part, the first central axis 2111 is parallel to the first centroid main axis 214 but does not overlap.
  • the clamping portion has a second central axis 223 extending in the second direction. The line of action of the axial force P coincides with the second central axis 223.
  • the second central axis 223 is located on the side of the first central axis 2111 close to the first centroid main axis 214.
  • the second central axis 223 is located on the side of the first central axis 2111 close to the first centroid main shaft 214, that is, the line of action of the axial force P is located at the first central axis 2111 close to the first centroid One side of the main shaft 214.
  • the second central axis 223 of the clamping part is offset to the side of the first central axis 2111 close to the first centroid main shaft 214.
  • the distance between the line of action of the axial force P and the first centroid main axis 214 is reduced, so that the line of action of the axial force P and the second centroid main axis (not shown in the figure) of the entire support bar 20 are different.
  • the distance between the two decreases, that is, the eccentricity decreases, and the bending moment decreases accordingly, thereby reducing the position offset of the supporting bar 20 in the non-stretching direction (that is, in the width direction of the supporting bar 20), and improving
  • the shielding effect of the support bar 20 is improved, and the display effect of the screen body after evaporation is improved.
  • the deformed portion includes a protrusion 212 that protrudes from the main body 211 in the first direction X, that is, protrudes outward from one side of the main body 211.
  • the support bar 20 having the special-shaped portion protruding from the main body 211 along the first direction X can shield the vapor deposition area to form a special-shaped vapor deposition area.
  • the number of the protrusions 212 can be one or more, which is not limited here.
  • the plurality of protrusions 212 are protrudingly provided on the same side of the main body 211, and the plurality of protrusions 212 are arranged at intervals in the second direction.
  • part of the plurality of protrusions 212 is protruded on one side of the main body 211, and the remaining part of the plurality of protrusions 212 is protruded on the other side of the main body 211, and is located on the same side of the main body 211
  • the protrusions 212 are arranged at intervals in the second direction.
  • the shape of the top surface of the protrusion 212 or the cross-section parallel to the top surface can be a regular pattern, such as a rectangle, or an irregular pattern, such as an arc shape, which can be determined according to the required vapor deposition shape. This is also not limited.
  • the number of the protrusions 212 is two, and the two protrusions 212 are spaced apart in the second direction.
  • the number of protrusions 212 is not limited, and may be three or more in some other embodiments.
  • the first centroid main axis 214 of the support area 21 is located on the first central axis 2111 of the main body 211 close to the side of the main body 211 where the protrusions 212 are protruding.
  • the second centroid spindle of 20 is located on the side of the first centroid spindle 214 close to the protrusion 212, and the second central axis 223 of the clamping portion is located on the first centroid spindle 214 near the body 211 where the protrusion 212 is protruding.
  • the distance between the line of action of the axial force P and the second centroid main axis (not marked in the figure) of the entire support bar 20 is reduced, that is, the eccentricity is reduced, and the bending moment is also reduced accordingly, thus
  • the position offset of the support bar 20 in the non-stretching direction is reduced, the shielding effect of the support bar 20 is improved, and the display effect of the screen after evaporation is improved.
  • the size of the clamping portion in the first direction (that is, the width of the clamping portion) is smaller than the size of the body 211 in the first direction (that is, the width of the body 211).
  • the width of the clamping portion may also be greater than the width of the main body 211, or the width of the clamping portion may also be equal to the width of the main body 211, which is not limited herein.
  • the clamping portion includes a first clamping portion 221 and a second clamping portion 222.
  • the first clamping portion 221 and the second clamping portion 222 are provided at both ends of the main body 211.
  • the above-mentioned second central axis 223 is a common central axis of the first clamping portion 221 and the second clamping portion 222.
  • the widths of the first clamping portion 221 and the second clamping portion 222 are equal. In other embodiments, the widths of the first clamping portion 221 and the second clamping portion 222 are not equal, which is not limited herein.
  • the support area 21 may further include a transition portion, and the transition portion includes a first transition portion 2151 and a second transition portion 2152.
  • the first transition portion 2151 is provided between the first clamping portion 221 and the main body 211
  • the second transition portion 2152 is provided between the second clamping portion 222 and the main body 211.
  • the first transition portion 2151 is used for the transition between the first clamping portion 221 and the main body 211
  • the second transition portion 2152 is used for the transition between the second clamping portion 222 and the main body 211.
  • the transition part of the supporting area 21 may be omitted. In this case, the body 211 of the supporting area 21 is directly connected to the clamping part, which is not limited herein.
  • the body 211 may have a third central axis 2112 extending in the first direction.
  • the first clamping portion 221 and the second clamping portion 222 are symmetrically arranged with the third central axis 2112 as a reference. In some other embodiments, the first clamping portion 221 and the second clamping portion 222 may also be arranged asymmetrically with respect to the third central axis 2112, which is not limited here.
  • the main body 211 has a first side and a second side opposite to each other in the first direction, and the first clamping portion 221 and the second clamping portion 222 have both in the first direction Opposing the third side and the fourth side, the third side and the first side are on the same side, and the fourth side and the second side are on the same other side.
  • the distance between the third side and the first side in the first direction is L1
  • the distance between the fourth side and the second side in the first direction is L2
  • the size of 222 in the first direction is L3, 0 ⁇
  • the line of action of the axial force P can be in the core area of the support bar 20, that is, the line of action of the axial force P can be in the support bar 20 In a specific area in the X direction.
  • the bending moment can be reduced, thereby further reducing the position offset of the support bar in the non-stretching direction (the width direction of the support bar), and improving The shielding effect of the support bar further improves the display effect of the screen after evaporation.
  • the second central axis 223 coincides with the first centroid main axis 214, so as to ensure that the line of action of the axial force P coincides with the first centroid main axis 214 of the support zone 21 of the support bar 20 to further reduce
  • the eccentricity further reduces the position offset of the support bar 20 in the non-stretching direction (that is, in the width direction of the support bar 20), improves the shielding effect of the support bar 20, and further improves the display effect of the screen after evaporation .
  • the second central axis 223 coincides with the second centroid main axis (not shown). This ensures that the line of action of the axial force P coincides with the second centroid main axis of the entire support bar 20, so that the eccentricity is 0, and the support bar 20 is prevented from being in the non-stretching direction (that is, in the width direction of the support bar 20)
  • the position offset of improves the shielding effect of the support bar 20, and further improves the display effect of the screen after vapor deposition.
  • the deformed portion includes a recessed portion 213, which is recessed from the main body 211 along the first direction X, that is, recessed inwardly from one side of the main body 211.
  • the number of the recesses 213 may be one or more, which is not limited here.
  • the plurality of recesses 213 are recessed on the same side of the main body 211, and the plurality of recesses 213 are arranged at intervals in the second direction. In another embodiment, part of the plurality of recesses 213 is recessed on one side of the body 211, and the remaining part of the plurality of recesses 213 is recessed on the other side of the body 211, and is located in the recess on the same side of the body 211 213 are arranged at intervals in the second direction.
  • the shape of the top surface of the recess 213 or the cross-section parallel to the top surface can be a regular figure, such as a rectangle; it can also be an irregular figure, such as an arc shape, which is not limited herein.
  • the number of the recesses 213 is two, and the two recesses 213 are spaced apart in the second direction.
  • the number of the recesses 213 is not limited, and may be three or more in some other embodiments.
  • the first centroid main axis 214 of the support area 21 is located on the side of the first central axis 2111 of the main body 211 away from the recess 213, and the second centroid main axis of the support bar 20 Located on the side of the first centroid main shaft 214 away from the recessed portion 213, and the second central axis 223 of the clamping portion is located on the side of the first centroid main shaft 214 close to the recessed portion 213, the line of action of the axial force P and the entire support
  • the distance between the second centroid main axis (not marked in the figure) of the bar 20 is reduced, that is, the eccentricity is reduced, and the bending moment is also reduced accordingly, thereby reducing the support bar 20 in the non-stretching direction (that is, The position offset of the support bar 20 in the width direction) improves the shielding effect of the support bar 20, and further improves the display effect of the screen after vapor deposition.
  • the deformed portion includes a convex portion 212 and a concave portion 213.
  • the convex portion 212 is convexly formed on at least one side of the main body 211
  • the concave portion 213 is concavely formed on at least one side of the main body 211.
  • the number of the convex portion 212 and the concave portion 213 may both be one or more. In other embodiments, there is one convex portion 212 and multiple concave portions 213; or there are multiple convex portions 212 and one concave portion 213; or both convex portions 212 and concave portions 213 are one , There is no limitation here.
  • a plurality of protrusions 212 are protruded on the same side of the body 211, and the plurality of protrusions 212 are spaced in the second direction; the plurality of recesses 213 are recessed and provided on the same other side of the body 211 One side, and a plurality of recesses 213 are arranged at intervals in the second direction.
  • a part of the plurality of protrusions 212 is protruded on one side of the body 211, and the remaining part of the plurality of protrusions 212 is protruded on the other side of the body 211; in the plurality of recesses 213 Part of it is recessed on one side of the main body 211, and the remaining part of the plurality of recesses 213 is recessed on the other side of the main body 211.
  • the convex portion 212 and the concave portion 213 on the same side are spaced apart in the second direction.
  • the shape of the top surface of the protrusion 212 or the cross-section parallel to the top surface may be a regular pattern, such as a rectangle, or may be an irregular pattern, such as an arc shape, which is not limited herein.
  • the cross section of the recess 213 may be a regular pattern, such as a rectangle, or may be an irregular pattern, such as an arc shape, which is not limited herein.
  • the number of raised portions 212 is two, and the two raised portions 212 are spaced apart in the second direction; the number of recessed portions 213 is two, and the two recessed portions 213 are spaced apart in the second direction set up.
  • the number of the recesses 213 and the protrusions 212 is not limited, and may be three or more in some other embodiments.
  • the first centroid main axis 214 of the support area 21 is located at the first central axis 2111 of the main body 211 and is close to the main body 211.
  • One side of the protruding portion 212 is protruding, and the second centroid main axis of the support bar 20 is located on the side of the first centroid main axis 214 close to the protruding portion, and the second central axis 223 of the clamping portion is located at the first side.
  • centroid main axis 214 is close to the side of the main body 211 where the protrusion 212 is protruding, the distance between the line of action of the axial force P and the second centroid main axis (not shown in the figure) of the entire support bar 20 is reduced. That is, the eccentricity is reduced, and the bending moment is correspondingly reduced, thereby reducing the position offset of the supporting bar 20 in the non-stretching direction (that is, in the width direction of the supporting bar 20), and improving the shielding of the supporting bar 20 Effect, and further improve the display effect of the screen after vapor deposition.
  • an embodiment of the present application further provides a mask 100 including the above-mentioned support bar 20. Since the above-mentioned support bar 20 has beneficial effects, the mask 100 including the above-mentioned support bar 20 also has corresponding beneficial effects, which will not be described in detail here.
  • the mask 100 further includes a frame 10 and a mask strip 30.
  • the support bar 20 is fixed on the frame 10 to support the mask bar 30 and block the gap and part of the opening between the mask bar 30.
  • the mask strip 30 is provided with openings for vapor deposition.
  • the mask 100 includes a plurality of support bars 20 and a plurality of mask bars 30.
  • the plurality of support bars 20 are arranged vertically and horizontally and are fixedly connected to the frame 10.
  • the plurality of mask bars 30 are arranged on the corresponding support bars 20.
  • the length direction of the plurality of mask strips 30 is parallel to the length direction of at least a part of the support strips 20.
  • the gap between adjacent mask strips 30 is located above the support strip 20.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physical Vapour Deposition (AREA)

Abstract

本申请涉及一种支撑条及掩膜版，具有支撑区和夹持区，支撑条包括本体、异形部和夹持部。本体和异形部设于支撑区。本体在第一方向具有两侧，在第二方向具有两端。异形部位于本体的至少一侧。夹持部设于夹持区，且位于本体的两端。本体具有在第二方向上延伸的第一中轴线，夹持部具有在第二方向上延伸的第二中轴线，支撑区具有在第二方向上延伸的第一形心主轴。第二中轴线位于第一中轴线靠近第一形心主轴的一侧。第一方向与第二方向相互垂直，且均平行于本体的顶面所在的平面上。

Description

支撑条及掩膜版
相关申请
本申请要求于2020年05月29日提交中国专利局、申请号为202010475484.0、发明名称为“支撑条及掩膜版”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
本申请涉及蒸镀技术领域，特别是涉及一种支撑条及掩膜版。
背景技术
有机发光二极管(OLED)具有驱动电压低、主动发光、视角宽、效率高、响应速度快、易实现全彩色大面积壁挂式显示和柔性显示的等诸多特点。
在OLED制造技术中，掩膜版由于可以有效控制有机材料沉积在基板上的位置，成为蒸镀过程中至关重要的部件。掩膜版一般包括框架、支撑条及掩膜条。支撑条固定于框架上起到支撑掩膜条及遮挡掩膜条间隙的作用。掩膜条上开设有开口以用于蒸镀。
发明内容
本申请的各实施例提供一种支撑条及掩膜版。
根据本申请的一个方面提供一种支撑条，具有支撑区和夹持区，所述支撑条包括：
本体，位于所述支撑区，所述本体在第一方向具有两侧，在第二方向具有两端；
异形部，位于所述支撑区，且设于所述本体的至少一侧；以及
夹持部，位于所述夹持区，且设于所述本体的所述两端；
其中，所述本体具有在所述第二方向上延伸的第一中轴线，所述夹持部具有在所述第二方向上延伸的第二中轴线，所述支撑区具有在所述第二方向上延伸的第一形心主轴；
所述第二中轴线位于所述第一中轴线靠近所述第一形心主轴的一侧；以及
所述第一方向与所述第二方向相互垂直，且均平行于所述本体的顶面所在的平面上。
根据本申请的另一个方面提供一种掩膜版，包括如上述任一项实施例所述的支撑条。
本申请提供的支撑条及掩膜版，第二中轴线位于第一中轴线靠近第一形心主轴的一侧，即轴向力的作用线位于第一中轴线靠近第一形心主轴的一侧。如此，通过夹持部相对于本体的位置的设置，使得夹持部的第二中轴线偏移至第一中轴线靠近第一形心主轴的一侧，使得轴向力的作用线与第一形心主轴之间的距离减小。这样，轴向力的作用线与整个支撑条的第二形心主轴之间的距离减小，即为偏心距减小，弯矩也相应减小，从而减小了支撑条在非拉伸方向(也就是支撑条的宽度方向上)的位置偏移量，提高了支撑条的遮挡效果，进而提高了蒸镀后屏体的显示效果。
附图说明
图1为一种对称结构的支撑条的受力图。
图2为一种非对称结构的支撑条的受力图。
图3为本申请一实施例提供的异形部包括凸起部的支撑条的俯视结构图。
图4为本申请另一实施例提供的支撑条的俯视结构图。
图5为图4中所示支撑条的A处放大图。
图6为本申请又一实施例中提供的异形部包括凹陷部的支撑条的俯视结构图。
图7为本申请再一实施例中提供的异形部包括凸起部及凹陷部的支撑条的俯视结构图。
图8为本申请一实施例提供的掩膜版的俯视示意图。
具体实施方式
为了便于理解本申请，下面将参照相关附图对本申请进行更全面的描述。附图中给出了本申请的较佳的实施例。但是，本申请可以以许多不同的形式来实现，并不限于本文所描述的实施例。相反地，提供这些实施例的目的是使对本申请的公开内容的理解更加透彻全面。
正如背景技术所述，支撑条在张网过程中，其两端受到拉力作用时，会发生弯曲变形，从而在非拉伸方向(即与被施加拉力的拉伸方向相垂直的方向)发生严重位置偏移，从而导致支撑条的遮挡效果较差，进而导致蒸镀后形成的屏体显示不良。出现上述问题的原因 如下。
参阅图1，在支撑条20为对称结构时，作用在支撑条的夹持部上的轴向力P(拉伸力)从受力点沿力的方向引出的线(下文称作用线)与支撑条20的形心主轴重合。因此，支撑条在非拉伸方向(例如图1中的X方向)不会产生位置偏移。
参阅图2，当因设计需要，在支撑条20上增加一个或者若干个突起(突起起到例如遮挡蒸镀材料的作用)时，支撑条20会变成非对称结构。此时，轴向力P的作用线的位置保持不变，而支撑条20的形心主轴的位置发生变化。这样，轴向力P的作用线与支撑条20的形心主轴彼此平行但不重合，从而导致轴向力P的作用线与支撑条20的形心主轴之间产生偏心距e。由于偏心距e的存在，在支撑条20的横截面上将存在内力分量：弯矩M＝P*e。弯矩M使支撑条20发生弯曲变形，从而在非拉伸方向X发生严重位置偏移，导致支撑条20的遮挡效果较差，进而导致蒸镀后形成的屏体显示不良。
图1及图2中的Y方向表示拉伸方向，X方向表示非拉伸方向。对于某一平面图形，使惯性积等于零的一对正交坐标轴称为惯性主轴，简称主轴。如果主轴通过平面图形的形心，则称主轴为形心主轴，支撑条的顶面的几何中心即为支撑条顶面的形心。
参阅图3和图8，本申请一实施例提供的支撑条20具有支撑区21及夹持区22。支撑条20位于支撑区21的部分起到支撑掩膜条30及遮挡掩膜条30间隙的作用。支撑条20位于夹持区22的部分在张网时被夹持，以便于对支撑条20施加拉伸力(即轴向力P)，且在张网完成后，支撑条20位于夹持区22的部分与掩膜版100的框架10固定连接。具体地，在张网完成后，支撑条20位于夹持区22的部分可以与框架10焊接。
支撑条20包括本体211、异形部及夹持部。本体211及异形部均设于支撑区21，夹持部设于夹持区22。本体211在第一方向具有两侧，在第二方向具有两端，第一方向与第二方向相互垂直。异形部形成于本体211的至少一侧，夹持部设于本体211的两端。第一方向和第二方向均位于支撑条20的顶面所在的平面上。在本实施例中，第一方向为非拉伸方向，也即为上述提及的X方向，第二方向为拉伸方向，也即为上述提及的Y方向。支撑条20一般为长条状，上述第一方向也为支撑条20的宽度方向，第二方向也为支撑条20的长度方向。
由于支撑条20包括异形部，整个支撑条20为非对称结构，从而使轴力P的作用线与 支撑条20的形心主轴之间平行但不重合，导致轴向力P的作用线与形心主轴之间存在偏心距e。
进一步，支撑区21具有在第二方向上延伸的第一形心主轴214，本体211具有在第二方向上延伸的第一中轴线2111。由于异形部的存在，第一中轴线2111与第一形心主轴214平行但不重合。夹持部具有沿第二方向延伸的第二中轴线223。轴向力P的作用线与第二中轴线223重合。第二中轴线223位于第一中轴线2111靠近第一形心主轴214的一侧。
本实施例提供的支撑条20，第二中轴线223位于第一中轴线2111靠近第一形心主轴214的一侧，即轴向力P的作用线位于第一中轴线2111靠近第一形心主轴214的一侧。通过夹持部的相对于本体211的位置的设置，使得夹持部的第二中轴线223偏移至第一中轴线2111靠近第一形心主轴214的一侧。这样使得轴向力P的作用线与第一形心主轴214之间的距离减小，从而使轴向力P的作用线与整个支撑条20的第二形心主轴(图中未标)之间的距离减小，即为偏心距减小，弯矩也相应减小，从而减小了支撑条20在非拉伸方向(也就是支撑条20的宽度方向上)的位置偏移量，提高了支撑条20的遮挡效果，进而提高了蒸镀后屏体的显示效果。
在一实施例中，异形部包括凸起部212，凸起部212从本体211沿第一方向X凸出，即自本体211的一侧向外凸出。相对于未设置凸起部212的本体211，具有沿第一方向X凸出于本体211的异形部的支撑条20可以遮挡蒸镀区域形成异形蒸镀区。
凸起部212的数量可为一个或多个，在此不作限定。
在一实施例中，多个凸起部212凸设于本体211的同一侧，且多个凸起部212在第二方向上间隔设置。在另一实施例中，多个凸起部212中部分凸设于本体211的一侧，多个凸起部212中剩余部分凸设于本体211在的另一侧，且位于本体211同侧的凸起部212在第二方向上间隔设置。
上述凸起部212的顶面或平行于顶面的截面的形状可以为规则的图形，如长方形，也可以为非规则的图形，如圆弧形，可根据所需要的蒸镀形状决定，在此亦不作限定。
在一实施例中，凸起部212的数量为两个，且两个凸起部212在第二方向上间隔设置。凸起部212的数量不受限定，在其他一些实施例中可以为三个或更多。
当凸起部212凸设于本体211的同一侧时，支撑区21的第一形心主轴214位于本体 211的第一中轴线2111靠近本体211凸设有凸起部212的一侧，支撑条20的第二形心主轴位于第一形心主轴214靠近凸起部212的一侧，夹持部的第二中轴线223位于第一形心主轴214靠近本体211凸设有凸起部212的一侧，则轴向力P的作用线与整个支撑条20的第二形心主轴(图中未标)之间的距离减小，即为偏心距减小，弯矩也相应减小，从而减小了支撑条20在非拉伸方向(也就是支撑条20的宽度方向上)的位置偏移量，提高了支撑条20的遮挡效果，进而提高了蒸镀后屏体的显示效果。
参阅图4，夹持部在第一方向上的尺寸(即夹持部的宽度)小于本体211在第一方向上的尺寸(即本体211的宽度)。在另一些实施例中，夹持部的宽度也可以大于本体211的宽度，或者夹持部的宽度还可以等于本体211的宽度，在此亦不作限定。
夹持部包括第一夹持部221及第二夹持部222。第一夹持部221及第二夹持部222设于本体211的两端。上述第二中轴线223为第一夹持部221与第二夹持部222的公共中轴线。具体地，第一夹持部221与第二夹持部222的宽度相等。在另一些实施例中，第一夹持部221与第二夹持部222的宽度不等，在此亦不作限定。
支撑区21还可以包括过渡部，过渡部包括第一过渡部2151及第二过渡部2152。第一过渡部2151设于第一夹持部221与本体211之间，第二过渡部2152设于第二夹持部222与本体211之间。第一过渡部2151用于第一夹持部221与本体211之间的过渡，第二过渡部2152用于第二夹持部222与本体211之间的过渡。在另一些实施例中，支撑区21也可以省略过渡部，此时支撑区21的本体211直接与夹持部相连，在此亦不作限定。
本体211可具有在第一方向延伸的第三中轴线2112。第一夹持部221与第二夹持部222两者以第三中轴线2112为基准对称设置。在其他一些实施例中，第一夹持部221与第二夹持部222两者相对于第三中轴线2112也可以非对称设置，在此亦不作限定。
参阅图5，在一实施例中，本体211在第一方向上具有相对的第一侧边及第二侧边，第一夹持部221及第二夹持部222在第一方向上均具有相对的第三侧边及第四侧边，第三侧边与第一侧边位于同一侧，第四侧边与第二侧边位于相同的另一侧。第三侧边与第一侧边在第一方向上的间距为L1，第四侧边与第二侧边在第一方向上的间距为L2，第一夹持部221及第二夹持部222在第一方向上的尺寸为L3，0<|L1-L2|≤L3/6。
通过将|L1-L2|设置为大于0且小于等于L3/6，可以使轴向力P的作用线处于支撑条 20的核心区域内，即可以使轴向力P的作用线处于支撑条20在X方向上的特定区域内。当轴向力P的作用线处于该核心区域内时，可以使弯矩减小，从而进一步减小了支撑条在非拉伸方向(支撑条的宽度方向上)的位置偏移量，提高了支撑条的遮挡效果，进而提高了蒸镀后屏体的显示效果。
在一个实施例中，第二中轴线223与第一形心主轴214重合，如此保证轴向力P的作用线与支撑条20的支撑区21的第一形心主轴214重合，以进一步减小偏心距，进一步减少了支撑条20在非拉伸方向(也就是支撑条20的宽度方向上)的位置偏移，提高了支撑条20的遮挡效果，进而提高了蒸镀后屏体的显示效果。
在另一个实施例中，第二中轴线223与第二形心主轴(图未示)重合。如此保证轴向力P的作用线与整个支撑条20的第二形心主轴重合，以使偏心距为0，避免了支撑条20在非拉伸方向(也就是支撑条20的宽度方向上)的位置偏移，提高了支撑条20的遮挡效果，进而提高了蒸镀后屏体的显示效果。
参阅图6，在一实施例中，异形部包括凹陷部213，凹陷部213从本体211沿第一方向X凹陷，即自本体211的一侧沿向内凹陷。凹陷部213的数量可为一个或多个，在此不作限定。
在一实施例中，多个凹陷部213凹设于本体211的同一侧，且多个凹陷部213在第二方向上间隔设置。在另一实施例中，多个凹陷部213中部分凹设于本体211的一侧，多个凹陷部213中剩余部分凹设于本体211的另一侧，且位于本体211同侧的凹陷部213在第二方向上间隔设置。
上述凹陷部213的顶面或平行于顶面的截面的形状可以为规则的图形，如长方形；也可以为非规则的图形，如圆弧形，在此亦不作限定。
在一实施例中，凹陷部213的数量为两个，两个凹陷部213在第二方向上间隔设置。凹陷部213的数量不受限定，在其他一些实施例中可以为三个或更多。
当凹陷部213凹设于本体211的同一侧时，支撑区21的第一形心主轴214位于本体211的第一中轴线2111背离凹陷部213的一侧，支撑条20的第二形心主轴位于第一形心主轴214背离凹陷部213的一侧，夹持部的第二中轴线223位于第一形心主轴214靠近凹陷部213的一侧，则轴向力P的作用线与整个支撑条20的第二形心主轴(图中未标)之 间的距离减小，即为偏心距减小，弯矩也相应减小，从而减小了支撑条20在非拉伸方向(也就是支撑条20的宽度方向上)的位置偏移量，提高了支撑条20的遮挡效果，进而提高了蒸镀后屏体的显示效果。
对于夹持部的设置可以参照前述实施例中的描述，在此不再赘述。
参阅图7，在一实施例中，异形部包括凸起部212及凹陷部213，凸起部212凸设于本体211的至少一侧，凹陷部213凹设于本体211的至少一侧。
凸起部212及凹陷部213的数量可均为一个或多个。在另一些实施例中，凸起部212为一个，而凹陷部213为多个；或者凸起部212为多个，凹陷部213为一个；再或者凸起部212及凹陷部213均为一个，在此亦不作限定。
在一实施例中，多个凸起部212凸设于本体211的同一侧，且多个凸起部212在第二方向上间隔设置；多个凹陷部213凹陷设于本体211的相同的另一侧，且多个凹陷部213在第二方向上间隔设置。在另一实施例中，多个凸起部212中部分凸设于本体211的一侧，多个凸起部212中的剩余部分凸设于本体211的另一侧；多个凹陷部213中部分凹设于本体211的一侧，多个凹陷部213中剩余部分凹设于本体211的另一侧。位于同一侧的凸起部212与凹陷部213在第二方向上间隔设置。
上述凸起部212的顶面或平行于顶面的截面的形状可以为规则的图形，如长方形，也可以为非规则的图形，如圆弧形，在此不作限定。上述凹陷部213的截面可以为规则的图形，如长方形，也可以为非规则的图形，如圆弧形，在此亦不作限定。
在一实施例中，凸起部212的数量为两个，两个凸起部212在第二方向上间隔设置；凹陷部213的数量为两个，两个凹陷部213在第二方向上间隔设置。凹陷部213及凸起部212的数量不受限定，在其他一些实施例中可以为三个或更多。
当凹陷部213凹设于本体211的一侧，凸起部212凸设于本体211的另一侧时，支撑区21的第一形心主轴214位于本体211的第一中轴线2111靠近本体211凸设有凸起部212的一侧，且支撑条20的第二形心主轴位于第一形心主轴214靠近所述凸起部的一侧，夹持部的第二中轴线223位于第一形心主轴214靠近本体211凸设有凸起部212的一侧，则轴向力P的作用线与整个支撑条20的第二形心主轴(图中未标)之间的距离减小，即为偏心距减小，弯矩也相应减小，从而减小了支撑条20在非拉伸方向(也就是支撑条20的 宽度方向上)的位置偏移量，提高了支撑条20的遮挡效果，进而提高了蒸镀后屏体的显示效果。
对于夹持部的设置可以参照第一种实施例中的描述，在此不再赘述。
参阅图8，本申请实施例还提供一种掩膜版100，包括上述所述的支撑条20。由于上述支撑条20具有有益效果，包括上述支撑条20的掩膜版100也具有相应的有益效果，在此不再详细赘述。
具体地，掩膜版100还包括框架10及掩膜条30。支撑条20固定于框架10上起到支撑掩膜条30及遮挡掩膜条30之间的间隙及部分开口的作用。掩膜条30上开设有开口以用于蒸镀。
掩膜版100包括多个支撑条20及多个掩膜条30，多个支撑条20纵横排列且与框架10固定连接，多个掩膜条30设置于对应的支撑条20上。多个掩膜条30的长度方向与至少一部分支撑条20的长度方向平行。相邻的掩膜条30之间的间隙位于支撑条20上方。
以上所述实施例仅表达了本申请的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对发明专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干变形和改进，这些都属于本申请的保护范围。因此，本发明专利的保护范围应以所附权利要求为准。

Claims (18)

  1. 一种支撑条，具有支撑区和夹持区，其中，所述支撑条包括：
    本体，设于所述支撑区，所述本体在第一方向具有两侧，在第二方向具有两端；
    异形部，位于所述支撑区，且设于所述本体的至少一侧；以及
    夹持部，位于所述夹持区，且设于所述本体的所述两端；
    其中，所述本体具有在所述第二方向上延伸的第一中轴线，所述夹持部具有在所述第二方向上延伸的第二中轴线，所述支撑区具有在所述第二方向上延伸的第一形心主轴；
    所述第二中轴线位于所述第一中轴线靠近所述第一形心主轴的一侧；以及
    所述第一方向与所述第二方向相互垂直，且均平行于所述本体的顶面所在的平面上。
  2. 根据权利要求1所述的支撑条，其中，所述异形部包括：
    凸起部，从所述本体沿所述第一方向凸起设置；和/或
    凹陷部，从所述本体沿所述第一方向凹陷设置。
  3. 根据权利要求2所述的支撑条，其中，所述异形部包括多个所述凸起部，全部所述多个凸起部均位于所述本体的同一侧。
  4. 根据权利要求2所述的支撑条，其中，所述异形部包括多个所述凸起部，所述多个凸起部中的部分凸设于所述本体的一侧，所述多个凸起部中的剩余部分凸设于所述本体的另一侧。
  5. 根据权利要求3或4所述的支撑条，其中，在所述本体的同一侧的所述多个凸起部在所述第二方向上间隔设置。
  6. 根据权利要求2所述的支撑条，其中，所述异形部包括多个所述凹陷部，全部所述多个凹陷部均位于所述本体沿所述第一方向的同一侧。
  7. 根据权利要求2所述的支撑条，其中，所述异形部包括多个所述凹陷部，所述多个凹陷部中的部分凹设于所述本体的一侧，所述多个凹陷部中的剩余部分凹设于所述本体的另一侧。
  8. 根据权利要求6或7所述的支撑条，其中，在所述本体的同一侧的所述多个凹陷部在所述第二方向上间隔设置。
  9. 根据权利要求2所述的支撑条，其中，所述异形部包括多个所述凸起部及多个所 述凹陷部，全部所述多个凸起部均位于所述本体的一侧，全部所述多个凹陷部均位于所述本体沿所述第一方向的另一侧；以及
    所述第二中轴线位于所述第一形心主轴靠近所述凸起部的一侧。
  10. 根据权利要求9所述的支撑条，其中，所述多个凸起部在所述第二方向上间隔设置，所述多个凹陷部在所述第二方向上间隔设置。
  11. 根据权利要求1所述的支撑条，其中，所述夹持部包括：
    第一夹持部，设于所述本体的一端；及
    第二夹持部，设于所述本体的另一端；
    其中，所述本体具有在所述第一方向上延伸的第三中轴线，所述第一夹持部与所述第二夹持部以所述第三中轴线为对称轴成轴对称。
  12. 根据权利要求11所述的支撑条，其中，所述第一夹持部及所述第二夹持部在所述第一方向上的尺寸小于所述本体在所述第一方向上的尺寸。
  13. 根据权利要求12所述的支撑条，其中所述第一夹持部与所述第二夹持部在所述第一方向上的尺寸相等。
  14. 根据权利要求11所述的支撑条，其中，所述本体在所述第一方向上具有相对的第一侧边及第二侧边，所述第一夹持部及所述第二夹持部在所述第一方向上均具有相对的第三侧边及第四侧边，且所述第三侧边与所述第一侧边位于所述本体的同一侧，所述第四侧边与所述第二侧边位于所述本体的相同的另一侧。
  15. 根据权利要求14所述的支撑条，其中，所述第三侧边与所述第一侧边在所述第一方向上的间距为L1，所述第四侧边与所述第二侧边在所述第一方向上的间距为L2，所述第一夹持部及所述第二夹持部在所述第一方向上的尺寸为L3，0<|L1-L2|≤L3/6。
  16. 根据权利要求1-15中任一项所述的支撑条，其中，所述第二中轴线与所述第一形心主轴重合。
  17. 根据权利要求1-15中任一项所述的支撑条，其中，所述支撑条具有在所述第二方向上延伸的第二形心主轴，所述第二中轴线与所述第二形心主轴重合。
  18. 一种掩膜版，包括如权利要求1-17中任一项所述的支撑条。
PCT/CN2021/083859 2020-05-29 2021-03-30 支撑条及掩膜版 WO2021238386A1 (zh)

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