WO2018014694A1 - 显示面板、显示装置及显示面板的封装方法 - Google Patents

显示面板、显示装置及显示面板的封装方法 Download PDF

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Publication number
WO2018014694A1
WO2018014694A1 PCT/CN2017/089303 CN2017089303W WO2018014694A1 WO 2018014694 A1 WO2018014694 A1 WO 2018014694A1 CN 2017089303 W CN2017089303 W CN 2017089303W WO 2018014694 A1 WO2018014694 A1 WO 2018014694A1
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WO
WIPO (PCT)
Prior art keywords
functional layer
display panel
region
laser
glass
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PCT/CN2017/089303
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English (en)
French (fr)
Inventor
张亮
崔富毅
包珊珊
Original Assignee
京东方科技集团股份有限公司
鄂尔多斯市源盛光电有限责任公司
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Priority to US15/737,530 priority Critical patent/US10551652B2/en
Publication of WO2018014694A1 publication Critical patent/WO2018014694A1/zh

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    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/80—Constructional details
    • H10K59/87—Passivation; Containers; Encapsulations
    • H10K59/871—Self-supporting sealing arrangements
    • H10K59/8722—Peripheral sealing arrangements, e.g. adhesives, sealants
    • 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
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/80—Constructional details
    • H10K50/84—Passivation; Containers; Encapsulations
    • H10K50/842—Containers
    • H10K50/8426—Peripheral sealing arrangements, e.g. adhesives, sealants
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
    • H10K71/40—Thermal treatment, e.g. annealing in the presence of a solvent vapour
    • H10K71/421—Thermal treatment, e.g. annealing in the presence of a solvent vapour using coherent electromagnetic radiation, e.g. laser annealing
    • 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
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133331—Cover glasses
    • 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
    • G02F2202/00—Materials and properties
    • G02F2202/28—Adhesive materials or arrangements
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10—OLED displays
    • H10K59/12—Active-matrix OLED [AMOLED] displays

Definitions

  • the present disclosure relates to the field of liquid crystal product manufacturing technologies, and in particular, to a display panel, a display device, and a packaging method of the display panel.
  • the glass glue is not uniformly distributed, which reduces the glass plastic packaging performance.
  • the glass paste width may be smaller than the laser spot diameter, and the laser spot is scanned by the laser spot for a time longer than the position of the glass paste by the laser spot. The time of the sweep, which in turn causes the central area of the glass glue to receive more heat than the edge area.
  • the glass glue in the edge region of the glass glue can not be effectively melted for bonding or the glass glue is over-sintered due to the high energy of the center of the glass glue, thereby reducing the glass plastic packaging performance.
  • the center energy is higher than the edge, the interior of the glass glue is unevenly heated due to uneven heat, resulting in a decrease in mechanical strength of the OLED (Organic Light Emitting Display) device.
  • OLED Organic Light Emitting Display
  • the present disclosure provides a display panel, a display device, and a packaging method of the display panel to improve the glass plastic package performance.
  • a display panel provided by an embodiment of the present disclosure includes a substrate and a cover plate, wherein the substrate includes a display area and a package area located at a periphery of the display area, the substrate and the a glass glue is disposed between the cover plates and corresponding to the package area, and a functional layer is disposed on the cover plate corresponding to the glass glue for reducing the irradiation of the glass glue during the sintering process.
  • the glass paste comprises a central region and an edge region, the functional layer further for reducing a laser intensity that illuminates the central region during sintering, such that the central region receives laser intensity and the edge
  • the difference between the laser intensities experienced by the regions is not greater than the intensity threshold.
  • the functional layer includes a first area corresponding to the central area, and a second area corresponding to the edge area, the first area having a thickness greater than a thickness of the second area.
  • a difference between a thickness of the first region and a thickness of the second region is a first preset value, such that a laser intensity received by the central region of the glass paste and a laser received by the edge region of the glass paste are The same strength.
  • a difference between a thickness of the first region and a thickness of the second region is a second preset value, such that a central portion of the glass frit is subjected to a laser intensity that is less than a laser received by the edge region of the glass frit. strength.
  • the thickness of the transition layer of the functional layer from the first region to the second region is gradually decreased, so that the laser glue received by the glass glue is uniform.
  • the functional layer is disposed on a side of the cover plate away from the substrate.
  • the functional layer is disposed on a side of the cover plate adjacent to the substrate.
  • the functional layer has an area not less than the area of the glass glue.
  • the functional layer is formed by laminating a plurality of layers. Further, at least two film layers of the functional layer are made of different materials.
  • the functional layer is made of a transparent or translucent material.
  • the functional layer is made of indium tin oxide, and the thickness of the functional layer is greater than
  • the thickness of the functional layer gradually decreases from the center to the periphery.
  • the thickness of the functional layer corresponds to a laser intensity distribution of the output of the laser used in the sintering process, wherein a thickness of the functional layer corresponding to a region with a large laser intensity is greater than that of the functional layer Corresponds to the thickness of the region where the laser intensity is small.
  • the present disclosure also provides a display device including the above display panel.
  • the present disclosure also provides a packaging method for a display panel, the display panel including a substrate and a cover plate, the substrate including a display area and a package area located at a periphery of the display area, the method comprising:
  • the glass paste is subjected to laser sintering, and the laser irradiates the glass paste through the functional layer during sintering.
  • the forming a functional layer on the cover plate corresponding to the position of the glass glue comprises: forming a position corresponding to the position of the glass glue on a side of the cover plate away from the substrate The functional layer; the laser sintering of the glass paste comprises: laser sintering the glass paste from a side of the functional layer away from the cover plate.
  • the glass glue comprises a central region and an edge region, the functional layer for reducing the intensity of the laser that illuminates the central region of the glass paste during sintering.
  • the method further includes:
  • the functional layer is removed.
  • the beneficial effects of the present disclosure are that the setting of the functional layer can reduce the laser intensity of illuminating the glass glue during the sintering process, effectively avoiding the phenomenon that the glass glue is over-sintered or cannot be effectively fused for bonding, and improving the glass plastic packaging performance.
  • FIG. 1 is a schematic structural view of a display panel according to an embodiment of the present disclosure
  • FIG. 2 is a schematic structural view of a display panel according to an embodiment of the present disclosure
  • FIG. 3 is a schematic view showing an energy state of a glass paste according to an embodiment of the present disclosure when subjected to laser sintering;
  • FIG. 4 is a schematic view showing an energy state of a glass paste according to an embodiment of the present disclosure when subjected to laser sintering;
  • FIG. 5 is a schematic flow chart showing a packaging method of a display panel according to an embodiment of the present disclosure.
  • the embodiment provides a display panel including a substrate 2 and a cover plate 1.
  • the substrate 2 includes a display area and a package area located at a periphery of the display area, and the substrate 2 and the cover 1
  • a glass glue 4 is disposed at a position corresponding to the package area, and the cover plate 1 is provided with a functional layer 3 corresponding to the position of the glass glue 4 for reducing the irradiation of the glass glue during the sintering process.
  • Laser intensity Further, through the functional layer 3, the difference between the maximum value and the minimum value of the laser intensity received by the glass paste can be made not greater than the intensity threshold.
  • the intensity threshold can be set according to actual needs.
  • the functional layer When the functional layer is not provided, some areas of the glass paste are relatively strong in laser intensity, and by the above embodiment, the intensity of laser light irradiated to these areas by the functional layer is lowered. In this way, the glass glue is effectively prevented from being sintered or can not be effectively fused for bonding, and the glass plastic package performance is improved. Since the difference between the maximum and minimum values of the laser strength received by the glass glue is not greater than the intensity threshold, The interior of the glass glue is heated substantially uniformly to improve the robustness of the display device.
  • the glass paste 4 comprises a central region and an edge region, the functional layer 3 further being used to reduce the intensity of the laser that illuminates the central region during sintering.
  • the difference between the intensity of the laser light received by the central region and the intensity of the laser light received by the edge region may be no greater than the intensity threshold.
  • the functional layer is not provided, during the sintering process (such as sintering the glass glue with a laser that outputs a circular or elliptical spot), the central region of the glass paste 4 receives a laser intensity greater than that of the edge region, it should be understood that the glass
  • the central area of the glue may be a circular or elliptical area, and may also be a rectangular or irregularly shaped area.
  • the edge area of the glass glue may refer to an area other than the central area, or a central area and an edge area of the glass glue. There is a transition zone between them. This disclosure is not limited thereto.
  • the setting of the functional layer 3 can reduce the intensity of the laser light received during the laser sintering of the central region of the glass paste 4, that is, block a part of the laser energy, thereby reducing the difference between the heat received by the central region of the glass paste 4 and the heat received by the edge region, and improving The glass glue 4 in the edge region of the glass glue 4 cannot effectively melt the problem for bonding and improve the packaging performance of the glass glue 4.
  • the setting of the functional layer 3 effectively improves the problem that the energy of the central region of the glass glue 4 is higher than the edge of the glass rubber 4 due to laser sintering of the glass glue 4, so that the inside of the glass glue 4 has uneven stress due to thermal unevenness, thereby improving The mechanical strength of OLED devices.
  • the setting of the functional layer 3 improves the problem that the glass rubber 4 is excessively sintered due to excessive energy in the central region of the glass paste 4 when the glass paste 4 is subjected to laser sintering, thereby improving the packaging effect.
  • the functional layer 3 can be disposed on the cover plate 1 according to actual needs.
  • One side of the substrate 2 is as shown in FIG. 1; or, the functional layer 3 is disposed on the side of the cover plate 1 adjacent to the substrate 2, as shown in FIG.
  • the central layer of the glass paste 4 may correspond to the central region of the glass paste 4, that is, the area of the functional layer 3 corresponds to the glass paste. 4
  • the area of the central area may increase the difficulty of the manufacturing process of the functional layer 3.
  • the glass glue is avoided.
  • the defect caused by the sintering may be sufficient, and the area size of the functional layer 3 is not limited.
  • the difference between the heat received in the central region of the glass paste 4 and the heat received in the edge region is effectively reduced.
  • the area of the functional layer 3 is not less than the area of the glass glue 4.
  • the functional layer 3 may be covered on the entire cover plate 1. It should be noted that the selection of the material of the functional layer 3, the thickness setting, etc. are not Affects the performance of the display panel.
  • the specific structural form of the functional layer 3 may be set in multiple types.
  • the configuration (eg, thickness) of the functional layer corresponds to a laser intensity distribution of the output of the laser used in the sintering process, wherein a thickness of the functional layer corresponding to a region having a large laser intensity is greater than The functional layer corresponds to the thickness of a region where the laser intensity is small.
  • the thickness of the functional layer may also gradually decrease from the central region to the periphery.
  • the area of the functional layer may be smaller than the area of the glass glue, such as the functional layer corresponding to the central area of the glass glue 4.
  • the thickness of the first region included in the functional layer 3 may be greater than the number included in the functional layer 3 The thickness of the two regions, wherein the first region corresponds to a central region of the glass glue 4, and the second region corresponds to an edge region of the glass glue 4.
  • the laser intensity received during laser sintering of the central region of the glass paste 4 is reduced, that is, the central region of the glass paste 4 is received.
  • the difference between the heat and the heat received in the edge region prevents the central region of the glass glue 4 from being over-sintered, and at the same time, the edge of the glass glue 4 is effectively sintered.
  • a difference between a thickness of the first region and a thickness of the second region is a first preset The value is such that the central portion of the glass paste 4 receives the same light intensity as the edge region of the glass paste 4 (i.e., the laser intensity).
  • the energy level indicating line 10 received by the glass glue 4 is a straight line parallel to the surface of the glass glue 4, that is, the glass glue 4 is in the center region of the glass glue 4 to the edge region of the glass glue 4 during laser sintering.
  • the same energy is received (may be substantially the same); thus, the glass glue 4 receives uniform energy, reduces the thermal stress generated by the glass glue 4 due to uneven heat, and improves the mechanical strength of the OLED panel.
  • the first preset value may be set according to actual needs.
  • the thickness of the transition region of the functional layer 3 from the first region to the second region is gradually reduced, so that the laser glue 4 as a whole receives the same laser intensity.
  • the difference between the thickness of the first region and the thickness of the second region may be a second preset value, such that the central region of the glass paste 4 receives less light than the edge of the glass adhesive 4 The intensity of the area is affected.
  • the energy level indicating line 10 received by the glass glue 4 is a curve, and the height of the curve corresponding to the position of the central region of the glass glue 4 is lower than the position corresponding to the edge region of the glass glue 4.
  • the height that is, the distance between the middle position of the curve and the glass glue 4 is smaller than the distance between the two ends of the curve and the glass glue 4, so that the glass glue 4 is compared with the glass in the edge region of the glass glue 4 during laser sintering.
  • the center area of the glue 4 receives more energy, so that the edge of the glass glue 4 is effectively sintered, and at the same time, avoiding the problem that the glass glue 4 is excessively sintered due to excessive energy in the central region of the glass glue 4, thereby improving the glass glue. 4 package effect.
  • the second preset value may be set according to actual needs.
  • the thickness of the second region may be non-uniform, such as gradually decreasing toward the periphery.
  • the functional layer 3 is formed by laminating a plurality of layers.
  • the arrangement of the multilayer film layer enables the setting of different thicknesses of different regions on the functional layer 3, thereby effecting the adjustment of the distribution of energy received by the glass glue 4.
  • At least two film layers of the functional layer 3 are made of different materials.
  • the functional layer 3 is made of a transparent or translucent material.
  • the functional layer 3 is made of indium tin oxide, and the thickness of the functional layer 3 is greater than
  • the material of the functional layer 3 is mainly used to reduce the light intensity. Different materials have different effects on the attenuation of light intensity, and different thicknesses have different effects on the attenuation of light intensity.
  • a film layer in the functional layer 3 is preferably made of an indium tin oxide material (but not limited to using an indium tin oxide material), or the functional layer 3 is entirely made of an indium tin oxide material.
  • the thickness of the indium tin oxide material layer is greater than It has a strong attenuation effect on the laser light intensity, and the attenuation effect becomes more obvious as the thickness increases.
  • the present disclosure also provides a display device including the above display panel.
  • the present disclosure also provides a packaging method for the above display panel, as shown in FIG. 5, comprising the following steps:
  • Step 501 a glass glue is disposed between the substrate and the cover plate and corresponding to the package area;
  • Step 502 forming a functional layer on the cover plate corresponding to the position of the glass paste, wherein the functional layer is used to reduce the laser intensity of irradiating the glass paste during sintering;
  • Step 503 laser sintering the glass paste, and the laser irradiates the glass paste through the functional layer during sintering.
  • the difference between the maximum and minimum values of the laser intensity received by the glass paste by the functional layer is not greater than the intensity threshold.
  • the intensity of the laser light that illuminates the central region during the sintering process can be reduced by the functional layer 3.
  • the difference between the intensity of the laser light received by the central region and the intensity of the laser light received by the edge region may be no greater than the intensity threshold.
  • the phenomenon that the glass glue is over-sintered or cannot be effectively fused for bonding is effectively avoided, and the sealing property of the glass glue is improved, because the difference between the maximum and minimum values of the laser intensity received by the glass glue is not greater than the intensity threshold,
  • the heat inside the glass glue can be substantially uniform, and the robustness of the display device is improved.
  • a functional layer 3 is formed on a side of the cover plate 1 away from the substrate 2 and corresponding to the glass glue 4, as shown in FIG.
  • the functional layer 3 can reduce the intensity of the laser light received during laser sintering of the central region of the glass paste 4;
  • the glass paste 4 is laser sintered from the side of the functional layer 3 remote from the cover plate 1.
  • the functional layer 3 is disposed on a side of the cover plate 1 adjacent to the substrate 2, that is, the functional layer 3 is formed between the glass glue 4 and the cover plate 1 in the glass.
  • the functional layer 3 can be sintered and melted together.
  • the functional layer 3 is disposed on a side of the cover plate 1 away from the substrate 2,
  • the packaging method of the display panel further includes:
  • the functional layer 3 is removed.
  • the functional layer 3 is thinly disposed and is made of a transparent and translucent material, and its function is mainly to reduce the light intensity, so the setting of the functional layer 3 does not affect the subsequent manufacturing process of the display panel, and does not affect The overall performance of the panel is displayed, so in order to save the process, the functional layer 3 may not be removed.

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  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
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  • Crystallography & Structural Chemistry (AREA)
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Abstract

一种显示面板，显示装置及显示面板的封装方法。该显示面板包括基板（2）和盖板（1），其中，基板包括显示区域和位于显示区域外围的封装区域，基板和盖板之间且对应于封装区域的位置设有玻璃胶（4），以及盖板上对应于玻璃胶的位置设有功能层（3），用于降低在烧结过程中照射玻璃胶的激光强度。

Description

显示面板、显示装置及显示面板的封装方法
相关申请的交叉引用
本申请要求于2016年7月22日提交中国专利局、发明名称为“显示面板、显示装置及显示面板的封装方法”，申请号为201610586440.9的优先权，其全部内容据此通过引用并入本申请。
技术领域
本公开涉及液晶产品制作技术领域，尤其涉及一种显示面板、显示装置及显示面板的封装方法。
背景技术
目前，光伏器件、等离子体显示、有机发光二极管和AMOLED(Active Matrix/Organic Light Emitting Diode，有源矩阵有机发光二极体面板)等需要使用玻璃胶进行密封。在玻璃胶封装工艺中采用激光照射玻璃胶进行烧结时，由于玻璃胶接收到的能量分布不均匀，降低了玻璃胶封装性能。例如，相关技术中使用如输出圆形激光器对玻璃胶进行烧结，玻璃胶宽度可能比激光光斑直径小一点，由于玻璃胶越靠近中心的位置被激光光斑扫射的时间长于玻璃胶边缘位置被激光光斑扫射的时间，进而导致玻璃胶中心区域接收的热量高于边缘区域。这样，使得玻璃胶边缘区域的玻璃胶不能有效地融化用于粘结或者因玻璃胶中心能量过高而导致玻璃胶过烧结，降低玻璃胶封装性能。此外，因中心能量高于边缘，玻璃胶内部因热不均匀而产生不均匀应力，造成OLED(Organic Light Emitting Display，有机发光显示器)器件机械强度降低。
发明内容
为了解决上述技术问题，本公开提供一种显示面板、显示装置及显示面板的封装方法，提高玻璃胶封装性能。
为了达到上述目的，本公开实施例提供的一种显示面板，包括基板和盖板，其中，所述基板包括显示区域和位于显示区域外围的封装区域，所述基板和所 述盖板之间且对应于所述封装区域的位置设有玻璃胶，以及所述盖板上对应于所述玻璃胶的位置设有功能层，用于降低在烧结过程中照射所述玻璃胶的激光强度。
可选地，所述玻璃胶包括中心区域和边缘区域，所述功能层进一步用于降低在烧结过程中照射所述中心区域的激光强度，以使所述中心区域受到的激光强度与所述边缘区域受到的激光强度之间的差不大于强度阈值。
可选地，所述功能层包括对应于所述中心区域的第一区域，和对应于所述边缘区域的第二区域，所述第一区域的厚度大于所述第二区域的厚度。
可选地，所述第一区域的厚度与所述第二区域的厚度的差值为第一预设值，使得所述玻璃胶中心区域受到的激光强度与所述玻璃胶边缘区域受到的激光强度相同。
可选地，所述第一区域的厚度与所述第二区域的厚度的差值为第二预设值，使得所述玻璃胶中心区域受到的激光强度小于所述玻璃胶边缘区域受到的激光强度。
可选地，所述功能层从所述第一区域向所述第二区域的过渡区域的厚度逐渐减小，使得所述玻璃胶整体受到的激光强度一致。
可选地，所述功能层设置于所述盖板上远离所述基板的一侧。
可选地，所述功能层设置于所述盖板上靠近所述基板的一侧。
可选地，所述功能层的面积不小于玻璃胶的面积。
可选地，所述功能层为多层膜层叠置形成。进一步的，所述功能层的至少2个膜层采用不同的材料制成。
可选地，所述功能层为透明或半透明材质制成。
可选地，所述功能层采用氧化铟锡制成，且所述功能层的厚度大于
Figure PCTCN2017089303-appb-000001
可选地，所述功能层的厚度从中心向四周逐渐减小。
可选地，所述功能层的厚度与所述烧结过程中使用的激光器所述输出的激光强度分布相对应，其中所述功能层的对应于激光强度大的区域的厚度大于所述功能层的对应于激光强度小的区域的厚度。
本公开还提供一种显示装置，包括上述的显示面板。
本公开还提供一种用于显示面板的封装方法，所述显示面板包括基板和盖板，所述基板包括显示区域和位于显示区域外围的封装区域，该方法包括：
在所述基板和所述盖板之间且对应于所述封装区域的位置设置玻璃胶；
在所述盖板上对应于所述玻璃胶的位置形成功能层，其中所述功能层用于降低在烧结过程中照射所述玻璃胶的激光强度；
对所述玻璃胶进行激光烧结，在烧结过程中激光通过所述功能层照射所述玻璃胶。
可选地，所述在所述盖板上对应于所述玻璃胶的位置形成功能层，包括：在所述盖板上远离所述基板的一侧，对应于所述玻璃胶的位置形成所述功能层；所述对所述玻璃胶进行激光烧结，包括：从所述功能层远离所述盖板的一侧对所述玻璃胶进行激光烧结。
可选地，所述玻璃胶包括中心区域和边缘区域，所述功能层用于降低在烧结过程中照射所述玻璃胶的中心区域的激光强度。
可选地，该方法还包括：
去除所述功能层。
本公开的有益效果是：功能层的设置能够降低在烧结过程中照射所述玻璃胶的激光强度，有效避免玻璃胶过烧结或者不能有效融合用于粘结的现象，提升玻璃胶封装性能。
附图说明
图1表示本公开实施例的显示面板结构示意图；
图2表示本公开实施例的显示面板结构示意图；
图3表示本公开实施例的玻璃胶进行激光烧结时受到的能量状态示意图；
图4表示本公开实施例的玻璃胶进行激光烧结时受到的能量状态示意图；
图5表示本公开实施例的显示面板的封装方法的示意流程图。
具体实施方式
以下结合附图对本公开的特征和原理进行详细说明，所举实施例仅用于解释本公开，并非以此限定本公开的保护范围。
如图1和图2所示，本实施例提供一种显示面板，包括基板2和盖板1，所述基板2包括显示区域和位于显示区域外围的封装区域，所述基板2和盖板1之间、对应于所述封装区域的位置设有玻璃胶4，所述盖板1上对应于所述玻璃胶4的位置设有功能层3，用于降低在烧结过程中照射所述玻璃胶的激光强度。进一步地，通过功能层3，可以使所述玻璃胶受到的激光强度的最大值与最小值之间的差不大于强度阈值。该强度阈值可以根据实际需要来设定。
在未设置功能层时，玻璃胶的某些区域受到激光强度相对大，通过上述实施例，通过功能层照射到这些区域的激光强度降低。这样，有效避免玻璃胶过烧结或者不能有效融合用于粘结的现象，提升玻璃胶封装性能，由于玻璃胶受到的激光强度的最大值与最小值之间的差不大于强度阈值，还能使玻璃胶内部受热大致均匀，提高显示器件的鲁棒性。
可选地，所述玻璃胶4包括中心区域和边缘区域，所述功能层3进一步用于降低在烧结过程中照射所述中心区域的激光强度。可以使所述中心区域受到的激光强度与所述边缘区域受到的激光强度之间的差不大于所述强度阈值。若未设置功能层，在烧结过程中(如采用输出圆形或椭圆形光斑的激光器对玻璃胶进行烧结)，玻璃胶4的中心区域受到的激光强度大于边缘区域的激光强度，应理解，玻璃胶的中心区域可以是圆形或椭圆形区域，还可以是矩形或不规则形状的区域，玻璃胶的边缘区域可以是指除中心区域之外的区域，或者玻璃胶的中心区域和边缘区域之间存在过渡区域。本公开对此并不限定。
功能层3的设置能够降低所述玻璃胶4中心区域进行激光烧结时受到的激光强度，即阻挡一部分激光能量，进而降低玻璃胶4中心区域接收的热量与边缘区域接收的热量的差值，改善玻璃胶4边缘区域玻璃胶4不能有效地融化用于粘结的问题，提高玻璃胶4封装性能。
且功能层3的设置有效的改善了由于玻璃胶4进行激光烧结时玻璃胶4中心区域能量高于玻璃胶4边缘、以使得玻璃胶4内部因热不均匀出现不均匀应力的问题，从而提高了OLED器件机械强度。
同时，功能层3的设置改善了因玻璃胶4进行激光烧结时、玻璃胶4中心区域能量过高容易导致玻璃胶4过烧结产生不良的问题，提高封装效果。
本实施例中，可以根据实际需要将所述功能层3设置于所述盖板1上远离 所述基板2的一侧，如图1所示；或者，将所述功能层3设置于所述盖板1上靠近所述基板2的一侧，如图2所示。
为了实现降低玻璃胶4进行激光烧结时、玻璃胶4中心区域受到的能量，可以将所述功能层3的设置对应于玻璃胶4的中心区域，即所述功能层3的面积对应于玻璃胶4中心区域的面积，但是，这样的设置可能增加了所述功能层3制作工艺的难度，本实施例中，只要能够降低所述玻璃胶中心区域进行激光烧结时受到的激光强度，避免玻璃胶过烧结产生的不良即可，并不限制功能层3的面积大小。本实施例中，为了保证所述功能层3能够有效的调节玻璃胶4整体的接受激光照射的能量的均匀性，即有效的降低玻璃胶4中心区域接收的热量与边缘区域接收的热量的差值，优选地，所述功能层3的面积不小于玻璃胶4的面积。
为了所述功能层3的工艺制作的便利性，可以将所述功能层3覆盖于整个所述盖板1上，需要说明的是，所述功能层3材料的选择、厚度的设置等均不影响显示面板的性能。
可选地，所述功能层3具体的结构形式的设置可以有多种。
可选地，所述功能层的构造(如厚度)与所述烧结过程中使用的激光器所述输出的激光强度分布相对应，其中所述功能层的对应于激光强度大的区域的厚度大于所述功能层的对应于激光强度小的区域的厚度。
可选地，所述功能层的厚度还可以从中心区域向四周逐渐减小。
可选地，所述功能层的面积可以小于玻璃胶的面积，如所述功能层对应玻璃胶4的中心区域。可选地，进行激光烧结时，为了实现降低玻璃胶4中心区域受到的能量，提高显示面板封装性能，可以使所述功能层3包括的第一区域的厚度大于所述功能层3包括的第二区域的厚度，其中所述第一区域对应于所述玻璃胶4中心区域，所述第二区域对应于所述玻璃胶4边缘区域。
通过所述功能层3上所述第一区域和所述第二区域的厚度不同的设置，降低所述玻璃胶4中心区域进行激光烧结时受到的激光强度，即降低玻璃胶4中心区域接收的热量与边缘区域接收的热量的差值，避免玻璃胶4中心区域过烧结，同时使得玻璃胶4边缘有效的烧结。
进一步的，所述第一区域的厚度与所述第二区域的厚度的差值为第一预设 值，使得所述玻璃胶4中心区域受到的光强与所述玻璃胶4边缘区域受到的光强(即激光强度)相同。
示例性地，如图3所示，玻璃胶4受到的能量大小指示线10为一与玻璃胶4表面平行的直线，即玻璃胶4在激光烧结时玻璃胶4中心区域至玻璃胶4边缘区域接受相同的能量(也可以是大致相同)；从而使玻璃胶4接受均匀的能量，降低玻璃胶4因热量不均产生的热应力，提高OLED面板机械强度。
所述第一预设值可以根据实际需要进行设置。
优选的，所述功能层3从所述第一区域向所述第二区域的过渡区域的厚度逐渐减小，使得所述玻璃胶4整体受到的激光强度一致。
本实施例中，所述第一区域的厚度与所述第二区域的厚度的差值可以为第二预设值，使得所述玻璃胶4中心区域受到的光强小于所述玻璃胶4边缘区域受到的光强。
示例性地，如图4所示，玻璃胶4受到的能量大小指示线10为一曲线，且该曲线上对应于玻璃胶4中心区域的位置的高度低于对应于玻璃胶4边缘区域的位置的高度，即，该曲线的中间位置与玻璃胶4之间的距离小于该曲线的两端与玻璃胶4之间的距离，从而使得玻璃胶4在激光烧结时玻璃胶4边缘区域相比玻璃胶4中心区域接受更多的能量，从而使玻璃胶4边缘有效地进行烧结，同时避免因玻璃胶4中心区域能量过高容易导致玻璃胶4过烧结产生不良的问题的发生，从而提高玻璃胶4封装效果。
所述第二预设值可以根据实际需要设定。
可选地，第二区域的厚度可以是不均匀的，如向四周逐渐减小。
本实施例中，所述功能层3为多层膜层叠置形成。多层膜层的设置实现所述功能层3上不同区域不同厚度的设置、从而实现将玻璃胶4接受能量的分布进行调节。
本实施例中，所述功能层3的至少2个膜层采用不同的材料制成。
进一步的，所述功能层3为透明或半透明材质制成。
进一步的，所述功能层3采用氧化铟锡制成，且所述功能层3的厚度大于
Figure PCTCN2017089303-appb-000002
制作所述功能层3的材料主要起到光强降低的作用，不同的材料对于光强 的衰减作用不同、且不同的厚度对于光强的衰减作用也不同。本实施例中所述功能层3中的一层膜层优选采用氧化铟锡材料制成(但并不限于采用氧化铟锡材料)，或者所述功能层3整体采用氧化铟锡材料制成，氧化铟锡材料层的厚度大于
Figure PCTCN2017089303-appb-000003
对激光光强有较强的衰减作用，且随着厚度的增加衰减作用越明显。
本公开还提供一种显示装置，包括上述的显示面板。
本公开还提供一种用于上述的显示面板的封装方法，如图5所示，包括如下步骤：
步骤501，在所述基板和所述盖板之间且对应于所述封装区域的位置设置玻璃胶；
步骤502，在所述盖板上对应于所述玻璃胶的位置形成功能层，其中所述功能层用于降低在烧结过程中照射所述玻璃胶的激光强度；
步骤503，对所述玻璃胶进行激光烧结，在烧结过程中激光通过所述功能层照射所述玻璃胶。
通过功能层可以使所述玻璃胶受到的激光强度的最大值与最小值之间的差不大于强度阈值。具体地，通过所述功能层3可以降低在烧结过程中照射所述中心区域的激光强度。可以以使所述中心区域受到的激光强度与所述边缘区域受到的激光强度之间的差不大于所述强度阈值。
通过上述方案，有效避免玻璃胶过烧结或者不能有效融合用于粘结的现象，提升玻璃胶封装性能，由于玻璃胶受到的激光强度的最大值与最小值之间的差不大于强度阈值，还能使玻璃胶内部受热大致均匀，提高显示器件的鲁棒性。
可选地，在所述盖板1上远离所述基板2的一侧、对应于所述玻璃胶4的位置形成功能层3，如图1所示。所述功能层3能够降低所述玻璃胶4中心区域进行激光烧结时受到的激光强度；
从功能层3远离所述盖板1的一侧对所述玻璃胶4进行激光烧结。
本实施例中，所述功能层3设置于所述盖板1上靠近基板2的一侧，即所述功能层3制作于所述玻璃胶4与所述盖板1之间时，在玻璃胶4进行激光烧结时，所述功能层3可以一同被烧结融化。
本实施例中，所述功能层3设置于所述盖板1上远离基板2的一侧时，显 示面板的封装方法还包括：
去除所述功能层3。
所述功能层3的设置厚度很薄，且采用透明及半透明材料制成，其作用主要为降低光强，所以所述功能层3的设置并不影响显示面板的后续制作工艺、更不影响显示面板的整体性能，所以为了节省工艺程序，所述功能层3可以不去除。
以上所述为本公开较佳实施例，需要说明的是，对于本领域普通技术人员来说，在不脱离本公开所述原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本公开保护范围。

Claims (20)

  1. 一种显示面板，包括：
    基板和盖板，
    其中，所述基板包括显示区域和位于显示区域外围的封装区域，所述基板和所述盖板之间且对应于所述封装区域的位置设有玻璃胶，以及所述盖板上对应于所述玻璃胶的位置设有功能层，用于降低在烧结过程中照射到所述玻璃胶的激光强度。
  2. 根据权利要求1所述的显示面板，其中，所述玻璃胶包括中心区域和边缘区域，所述功能层进一步用于降低在烧结过程中照射到所述中心区域的激光强度，以使所述中心区域受到的激光强度与所述边缘区域受到的激光强度之间的差不大于强度阈值。
  3. 根据权利要求2所述的显示面板，其中，所述功能层包括对应于所述中心区域的第一区域，和对应于所述边缘区域的第二区域，所述第一区域的厚度大于所述第二区域的厚度。
  4. 根据权利要求3所述的显示面板，其中，所述第一区域的厚度与所述第二区域的厚度的差值为第一预设值，使得所述玻璃胶中心区域受到的激光强度与所述玻璃胶边缘区域受到的激光强度相同。
  5. 根据权利要求3所述的显示面板，其中，所述第一区域的厚度与所述第二区域的厚度的差值为第二预设值，使得所述玻璃胶中心区域受到的激光强度小于所述玻璃胶边缘区域受到的激光强度。
  6. 根据权利要求3-5任一项所述的显示面板，其中，所述功能层从所述第一区域向所述第二区域的过渡区域的厚度逐渐减小，使得所述玻璃胶整体受到的激光强度一致。
  7. 根据权利要求3-6任一项所述的显示面板，其中所述功能层为多层膜层叠置形成。
  8. 根据权利要求7所述的显示面板，其中所述功能层的至少2个膜层采用不同的材料制成。
  9. 根据权利要求1或2所述的显示面板，其中，所述功能层的厚度从中心向四周逐渐减小。
  10. 根据权利要求1或2所述的显示面板，其中，所述功能层的厚度与所述烧结过程中使用的激光器所述输出的激光强度分布相对应，其中所述功能层的对应于激光强度大的区域的厚度大于所述功能层的对应于激光强度小的区域的厚度。
  11. 根据权利要求1-10任一项所述的显示面板，其中所述功能层为透明或半透明材质制成。
  12. 根据权利要求1-11任一项所述的显示面板，其中所述功能层采用氧化铟锡制成，且所述功能层的厚度大于
    Figure PCTCN2017089303-appb-100001
  13. 根据权利要求1-12任一项所述的显示面板，其特征在于，所述功能层的面积不小于玻璃胶的面积。
  14. 根据权利要求1-13任一项所述的显示面板，其特征在于，所述功能层设置于所述盖板上远离所述基板的一侧。
  15. 根据权利要求1-14任一项所述的显示面板，其特征在于，所述功能层设置于所述盖板上靠近所述基板的一侧。
  16. 一种显示装置，包括权利要求1-15任一项所述的显示面板。
  17. 一种显示面板的封装方法，其中所述显示面板包括基板和盖板，所述基板包括显示区域和位于显示区域外围的封装区域，所述方法包括：
    在所述基板和所述盖板之间且对应于所述封装区域的位置设置玻璃胶；
    在所述盖板上对应于所述玻璃胶的位置形成功能层，其中所述功能层用于降低在烧结过程中照射所述玻璃胶的激光强度；
    对所述玻璃胶进行激光烧结，在所述烧结过程中激光通过所述功能层照射所述玻璃胶。
  18. 根据权利要求17所述的方法，所述在所述盖板上对应于所述玻璃胶的位置形成功能层，包括：
    在所述盖板上远离所述基板的一侧，对应于所述玻璃胶的位置形成所述功能层；
    所述对所述玻璃胶进行激光烧结，包括：
    从所述功能层远离所述盖板的一侧对所述玻璃胶进行激光烧结。
  19. 根据权利要求17或18所述的显示面板的封装方法，其中所述玻璃胶 包括中心区域和边缘区域，所述功能层用于降低在烧结过程中照射所述玻璃胶的中心区域的激光强度。
  20. 根据权利要求17-19任一项所述的显示面板的封装方法，所述方法还包括：
    去除所述功能层。
PCT/CN2017/089303 2016-07-22 2017-06-21 显示面板、显示装置及显示面板的封装方法 WO2018014694A1 (zh)

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