WO2019127739A1 - 曲面显示装置及其显示面板 - Google Patents

曲面显示装置及其显示面板 Download PDF

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Publication number
WO2019127739A1
WO2019127739A1 PCT/CN2018/073276 CN2018073276W WO2019127739A1 WO 2019127739 A1 WO2019127739 A1 WO 2019127739A1 CN 2018073276 W CN2018073276 W CN 2018073276W WO 2019127739 A1 WO2019127739 A1 WO 2019127739A1
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Prior art keywords
substrate
intermediate portion
edge region
spacers
region
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PCT/CN2018/073276
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English (en)
French (fr)
Inventor
尹炳坤
殷婉婷
谭聪
沈宏明
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武汉华星光电技术有限公司
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Application filed by 武汉华星光电技术有限公司 filed Critical 武汉华星光电技术有限公司
Priority to US15/910,600 priority Critical patent/US10459296B2/en
Publication of WO2019127739A1 publication Critical patent/WO2019127739A1/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
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1339—Gaskets; Spacers; Sealing of cells
    • G02F1/13394—Gaskets; Spacers; Sealing of cells spacers regularly patterned on the cell subtrate, e.g. walls, pillars
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1339—Gaskets; Spacers; Sealing of cells
    • G02F1/13396—Spacers having different sizes

Definitions

  • the present invention relates to the field of curved liquid crystal display technology, and in particular, to a curved display device and a display panel thereof.
  • the curved liquid crystal display has the characteristics of ultra-thin, light weight, flexibility, high design freedom, and has broad market prospects in the fields of wearable, mobile communication, television, commercial advertising and military applications.
  • the amount of columnar spacers (PS) in different areas of the display area is inconsistent due to stress, and the spacers in the middle area have a large stress on the liquid crystal in the middle area, resulting in a middle
  • the liquid crystal of the region diffuses to the edge regions on both sides, resulting in uneven distribution of the liquid crystal in the liquid crystal layer, so that the length of the liquid crystal layer in the edge region is greater than the length of the liquid crystal layer in the intermediate region, and the difference in length of the liquid crystal layer causes an optical path difference, which affects Show the quality of the picture.
  • the present invention provides a curved display device and a display panel thereof, which can reduce stress on a liquid crystal generated by a spacer in an intermediate region, and prevent a liquid crystal from diffusing to an edge region to cause a difference in length of the liquid crystal layer. Improved the quality of the display.
  • the specific technical solution provided by the present invention is: providing a display panel, the display panel comprising a CF substrate, a TFT substrate, a plurality of spacers, a liquid crystal layer and a sealing layer, wherein the liquid crystal layer is located on the CF substrate and the Between the TFT substrates, the plurality of spacers are disposed on a side of the CF substrate facing the TFT substrate, and the sealing layer is located between the CF substrate and the TFT substrate and surrounds an edge of the liquid crystal layer
  • the liquid crystal layer includes an intermediate region and two edge regions on both sides of the intermediate region, and a spacer located in the intermediate region generates a stress on a liquid crystal of the intermediate region that is smaller than a gap located in the edge region.
  • the pad generates stress on the liquid crystal of the edge region to maintain an equal spacing between the CF substrate and the TFT substrate.
  • the spacers located in the two edge regions are symmetrical about the intermediate region, and the spacers located in the intermediate region are symmetrical about a central axis of the CF substrate.
  • the height of the spacer located in the intermediate region is less than the height of the spacer located in the edge region.
  • the height of the spacers located in the intermediate region increases sequentially in a direction from the intermediate region to the edge regions.
  • the height of the spacers located in the edge region increases in order from the intermediate region to the edge region.
  • the density of the spacers located in the intermediate region is less than the density of the spacers located in the edge regions.
  • the density of the spacers located in the intermediate region increases sequentially in a direction from the intermediate region to the edge region, and/or a density edge of the spacer located in the edge region The direction from the intermediate area to the edge area is sequentially increased.
  • the spacer in the intermediate region has a maximum length in a direction parallel to the CF substrate that is smaller than a spacer located in the edge region in a direction parallel to the CF substrate. The maximum length.
  • the spacers located in the intermediate region are sequentially incremented in a direction from the intermediate region to the edge region in a direction parallel to the CF substrate, and/or located
  • the spacers in the edge regions are sequentially increased in a direction from the intermediate region to the edge regions in a direction along a direction parallel to the CF substrate.
  • the present invention also provides a curved display device comprising the display panel of any of the above.
  • the display panel of the present invention includes a liquid crystal layer and a plurality of spacers disposed on a side of the CF substrate facing the TFT substrate, the liquid crystal layer including an intermediate region and two sides of the intermediate region
  • the two edge regions, the spacers located in the intermediate region generate stress on the liquid crystal of the intermediate region is smaller than the stress generated by the spacers in the edge region on the liquid crystal of the edge region, thereby avoiding the intermediate region
  • the liquid crystal diffuses to the edge regions on both sides to cause a difference in length of the liquid crystal layer, so that the CF substrate and the TFT substrate are maintained at equal intervals, and the quality of the display image is improved.
  • FIG. 1 is a schematic structural view of a curved display device in Embodiment 1;
  • Embodiment 2 is a schematic structural view of the display panel before bending in Embodiment 1;
  • Embodiment 3 is a schematic structural view of the display panel after bending in Embodiment 1;
  • FIG. 4 is a schematic structural view of the display panel before bending in Embodiment 2;
  • FIG. 5 is a schematic structural view of the display panel after bending in Embodiment 2;
  • FIG. 6 is a schematic structural view of the display panel before bending in Embodiment 3.
  • Fig. 7 is a structural schematic view showing the display panel after bending in the third embodiment.
  • the display panel of the present invention comprises a CF substrate, a TFT substrate, a plurality of spacers, a liquid crystal layer and a sealing layer.
  • the liquid crystal layer is located between the CF substrate and the TFT substrate, and the plurality of spacers are disposed on a side of the CF substrate facing the TFT substrate.
  • a sealing layer is disposed between the CF substrate and the TFT substrate and surrounding the edge of the liquid crystal layer.
  • the liquid crystal layer includes an intermediate region and two edge regions on both sides of the intermediate region, and the spacer located in the intermediate region generates liquid crystal to the intermediate region.
  • the stress is less than the stress generated by the spacer located in the edge region on the liquid crystal of the edge region, thereby preventing the liquid crystal in the intermediate region from diffusing to the edge regions on both sides, resulting in a difference in length of the liquid crystal layer, maintaining the CF substrate and the TFT substrate, etc.
  • the spacing improves the quality of the display.
  • the curved surface display device in the embodiment includes a display panel 1 and a backlight module 2 , the display panel 1 is a curved display panel, the backlight module 2 is a flexible backlight module, and the backlight module 2 is Used to provide a light source for the display panel 1.
  • the display panel 1 includes a CF substrate 11, a TFT substrate 12, a plurality of spacers 13, a liquid crystal layer 14, and a sealing layer 15.
  • the liquid crystal layer 14 is located between the CF substrate 11 and the TFT substrate 12, and a plurality of spacers 13
  • the sealing layer 15 is disposed on the side of the CF substrate 11 facing the TFT substrate 12, and the sealing layer 15 is disposed between the CF substrate 11 and the TFT substrate 12 and surrounding the edge of the liquid crystal layer 14.
  • the liquid crystal layer 14 includes an intermediate portion 14a and two sides on both sides of the intermediate portion. Edge area 14b.
  • the CF substrate 11 is disposed opposite to the TFT substrate 12 and forms a sealed cavity with the sealing layer 15.
  • a plurality of spacers 13 are located in the sealing cavity, and liquid crystal of the liquid crystal layer 14 is filled in the sealing cavity.
  • the spacers 13 located in the two edge regions 14b are symmetrical with respect to the intermediate portion 14a, and the spacers located in the intermediate portion 14a are symmetrical with respect to the central axis of the CF substrate 11.
  • the height of the spacer 13 located in the intermediate portion 14a is smaller than the height of the spacer 13 located in the edge region 14b.
  • the spacer 13 in this embodiment has a columnar shape, and the material thereof is a material having a certain elasticity.
  • the spacer 13 During the bending process of the display panel 13, the spacer 13 is deformed, and the spacer 13 generates a certain stress on the liquid crystal in the liquid crystal layer 14 under the action of its elastic deformation force, because the CF substrate 11 and the TFT substrate 12 are formed.
  • the portion corresponding to the intermediate portion 14a receives the greatest stress, and the liquid crystal located in the intermediate portion 14a receives the maximum pressing force. Therefore, the liquid crystal located in the intermediate portion 14a diffuses into the edge regions 14b on both sides, and will be located in the intermediate portion 14a.
  • the height of the spacer 13 is set to be smaller than the height of the spacer 13 located in the edge region 14b, so that the spacer 13 located in the edge region 14b can block the liquid crystal to the edges on both sides in the intermediate portion 14a
  • the diffusion in the region 14a in addition, since the height of the spacer 13 located in the edge region 14b is large, its own elastic deformation force is also relatively large, and the liquid crystal in the edge region 14a is subjected to a large stress, thereby further preventing the middle portion from being located.
  • the liquid crystal in the region 14a diffuses into the edge regions 14a on both sides.
  • the height of the spacers 13 located in the intermediate portion 14a is sequentially increased in the direction from the intermediate portion 14a to the edge region 14b, and may be equal in increments, that is, the spacing between any adjacent two rows of spacers 13 is equal. It may also be that the unequal difference is increasing, that is, the spacing between any adjacent two rows of spacers 13 is not completely equal or unequal, and at this time, the spacers 13 in the edge region 14b are along from the intermediate region 14a to the edge region.
  • the heights in the direction of 14b may or may not be equal.
  • the height of the spacer 13 located in the edge region 14b is sequentially increased in the direction from the intermediate portion 14a to the edge region 14b, and may be equal in increment, that is, the spacing between any adjacent two rows of spacers 13 is equal. It may also be that the unequal difference is incremented, that is, the spacing between any adjacent two rows of spacers 13 is not completely equal or unequal. At this time, the spacer 13 in the intermediate portion 14a is along the direction from the intermediate portion 14a to the edge region. The heights in the direction of 14b may or may not be equal.
  • the height of the spacer 13 located in the intermediate portion 14a increases in the direction from the intermediate portion 14a to the edge region 14b, and the height of the spacer 13 located in the edge region 14b follows the distance from the intermediate portion 14a.
  • the direction to the edge region 14b is sequentially increased, that is, the spacer 13 located in the intermediate portion 14a and the spacer 13 located in the edge region 14b are in a stepped distribution.
  • the spacers 13 of different heights are designed according to the distribution of stress in different regions of the display panel 1 during the bending process, and the stress of the liquid crystal in the liquid crystal layer 14 is dispersed by the different elastic deformation forces of the spacers 13 at different positions. Therefore, the CF substrate 11 and the TFT substrate 12 are maintained at equal intervals, and the difference in optical path difference between different regions of the liquid crystal layer 14 is avoided, and the quality of the display screen of the display panel 1 is improved.
  • the height of the spacer 13 located in the intermediate portion 14a and the spacer 13 located in the edge region 14b can be set according to actual needs.
  • the height of the spacer 13 in the intermediate portion 14a in this embodiment is equal to the height of the spacer 13 in the edge region 14b, and the density of the spacer 13 in the intermediate portion 14a. Less than the density of the spacers located in the edge region 14b.
  • the density of the spacers 13 located in the intermediate portion 14a is set to be smaller than the density of the spacers 13 located in the edge regions 14b, such that the density of the spacers 13 located in the edge regions 14b is larger, that is, the number is larger.
  • the liquid crystal located in the intermediate portion 14a is blocked from diffusing into the edge regions 14a on both sides. Further, since the density of the spacers 13 located in the edge region 14b is large, the liquid crystal located in the edge region 14b is subjected to a large stress. Thereby, the liquid crystal located in the intermediate portion 14a can be further prevented from diffusing into the edge regions 14a on both sides.
  • the density of the spacers 13 located in the intermediate portion 14a increases in the direction from the intermediate portion 14a to the edge region 14b, and may be equal in increments, that is, the increase in the density of the spacers 13 is equal or not.
  • the increase in the equal difference that is, the increase in the density of the spacers 13 is not completely equal or unequal, and at this time, the density of the spacers 13 in the edge region 14b in the direction from the intermediate portion 14a to the edge region 14b may be completely Equal or not equal.
  • the density of the spacers 13 located in the edge region 14b increases in the direction from the intermediate portion 14a to the edge region 14b, and may be equal in increments, that is, the increase in density of the spacers 13 is equal or not.
  • the increase in the equal difference, that is, the increase in the density of the spacers 13 is not completely equal or unequal, and at this time, the density of the spacers 13 in the intermediate portion 14a may be equal in the direction from the intermediate portion 14a to the edge region 14b. Can also be unequal.
  • the density of the spacers 13 located in the intermediate portion 14a increases in the direction from the intermediate portion 14a to the edge region 14b, and the density of the spacers 13 located in the edge region 14b follows the distance from the intermediate portion 14a.
  • the direction to the edge region 14b is sequentially increased, that is, the density of the spacers 13 located in the intermediate portion 14a and the density of the spacers 13 located in the edge region 14b are increased in a stepped manner.
  • the density of the spacers 13 is designed according to the distribution of stress in different regions of the display panel 1 during the bending process, and the liquid crystal layer 14 is dispersed by different elastic deformation forces generated by different densities of the spacers 13 at different positions.
  • the stress applied to the liquid crystal in the middle layer maintains an equal spacing between the CF substrate 11 and the TFT substrate 12, thereby avoiding a difference in optical path difference between different regions of the liquid crystal layer 14, and improving the quality of the display screen of the display panel 1.
  • the density of the spacer 13 located in the intermediate portion 14a and the spacer 13 located in the edge region 14b can be set according to actual needs.
  • the spacer 13 in the intermediate portion 14a and the spacer 13 in the edge region 14b are equal in height and density, and the spacer 13 in the intermediate portion 14a is
  • the maximum length in the direction parallel to the CF substrate 11 is smaller than the maximum length of the spacer 13 in the edge region 14b in the direction parallel to the CF substrate 11, that is, the spacer 13 located in the intermediate portion 14a is in the CF
  • the projected area on the substrate 11 is smaller than the projected area of the spacer 13 located in the edge region 14a on the CF substrate 11.
  • the maximum length of the spacer 13 in the intermediate portion 14a in the direction parallel to the CF substrate 11 is smaller than the smallest in the direction parallel to the CF substrate 11 of the spacer 13 located in the edge region 14b. length.
  • the spacer 13 is a cylinder
  • the diameter of the bottom surface of the spacer 13 located in the intermediate portion 14a is smaller than the diameter of the bottom surface of the spacer 13 located in the edge region 14b
  • the spacer 13 is a round table, and is located in the middle portion.
  • the top and bottom diameters of the spacers 13 in 14a are both smaller than the top and bottom diameters of the spacers 13 in the edge regions 14b.
  • the maximum length of the spacer 13 in the intermediate portion 14a in the direction parallel to the CF substrate 11 is set to be smaller than the maximum length of the spacer 13 in the edge region 14b in the direction parallel to the CF substrate 11.
  • the larger size of the spacer 13 located in the edge region 14b can block the diffusion of the liquid crystal located in the intermediate portion 14a into the edge regions 14a on both sides, and further, due to the spacers 13 located in the edge region 14b
  • the larger the size, the liquid crystal located in the edge region 14b is also subjected to a greater stress, so that the liquid crystal located in the intermediate portion 14a can be further prevented from diffusing into the edge regions 14a on both sides.
  • the maximum length of the spacer 13 located in the intermediate portion 14a in the direction parallel to the CF substrate 11 is sequentially increased in the direction from the intermediate portion 14a to the edge region 14b, and may be an increase in the difference, that is, the spacer 13
  • the increase in the maximum length in the direction parallel to the CF substrate 11 is equal, and the increase in the unequal difference is not uniform, that is, the increase in the maximum length of the spacer 13 in the direction parallel to the CF substrate 11 is not completely equal.
  • the maximum length of the spacers 13 in the edge region 14b in the direction parallel to the CF substrate 11 may be completely equal or not equal in the direction from the intermediate portion 14a to the edge region 14b.
  • the spacer 13 located in the edge region 14b is sequentially increased in the direction parallel to the CF substrate 11 in the direction from the intermediate portion 14a to the edge region 14b, and may be an equal difference increment, that is, the spacer 13
  • the increase in the maximum length in the direction parallel to the CF substrate 11 is equal, and the increase in the unequal difference is not uniform, that is, the increase in the maximum length of the spacer 13 in the direction parallel to the CF substrate 11 is not completely equal.
  • the maximum length of the spacers 13 in the intermediate portion 14a in the direction parallel to the CF substrate 11 may be completely equal or not equal in the direction from the intermediate portion 14a to the edge region 14b.
  • the spacer 13 located in the intermediate portion 14a is sequentially increased in the direction from the intermediate portion 14a to the edge region 14b in the direction parallel to the CF substrate 11, and is located in the edge region 14b.
  • the maximum length of the mat 13 in the direction parallel to the CF substrate 11 is sequentially increased in the direction from the intermediate portion 14a to the edge region 14b, that is, the spacer 13 located in the intermediate portion 14a is parallel to the CF substrate 11.
  • the maximum length in the direction is a stepwise distribution in which the spacer 13 located in the edge region 14b rises in the maximum length in the direction parallel to the CF substrate 11.
  • the maximum length of the spacer 13 in the direction parallel to the CF substrate 11 is designed, and the spacers 13 at different positions are along the CF.
  • the different elastic deformation forces generated by the difference in the maximum length in the parallel direction of the substrate 11 disperse the stress applied to the liquid crystal in the liquid crystal layer 14, thereby maintaining an equal spacing between the CF substrate 11 and the TFT substrate 12, avoiding different regions of the liquid crystal layer 14.
  • the difference in the optical path difference causes the quality of the display screen of the display panel 1 to be improved.
  • the maximum length of the spacer 13 located in the intermediate portion 14a and the spacer 13 located in the edge region 14b in the direction parallel to the CF substrate 11 can be set according to actual needs.

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  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
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Abstract

一种曲面显示装置及其显示面板(1)，显示面板(1)包括CF基板(11)、TFT基板(12)、多个隔垫物(13)、液晶层(14)及密封层(15)，液晶层(14)位于CF基板(11)与TFT基板(12)之间，该多个隔垫物(13)设于CF基板(11)朝向TFT基板(12)的一面，密封层(15)位于CF基板(11)与TFT基板(12)之间并环绕液晶层(14)的边缘设置，该液晶层(14)包括中间区域(14a)及位于该中间区域(14a)两侧的两个边缘区域(14b)，位于该中间区域(14a)的隔垫物(13)对该中间区域(14a)的液晶产生的应力小于位于该边缘区域(14b)的隔垫物(13)对该边缘区域(14b)的液晶产生的应力，以使得该CF基板(11)与该TFT基板(12)之间维持等间距。这可以避免中间区域(14a)的液晶向两侧的边缘区域(14b)扩散而导致液晶层的长度差异，使得该CF基板(11)与该TFT基板(12)之间维持等间距，改善了显示画面的质量。

Description

曲面显示装置及其显示面板 技术领域
本发明涉及曲面液晶显示技术领域，尤其涉及一种曲面显示装置及其显示面板。
背景技术
曲面液晶显示器具有超薄、质量轻、可弯曲、设计自由度高等特点，在可穿戴、手机通讯、电视、商业广告及军事应用领域中具有广阔的市场前景。但曲面LCD面板在弯曲或折叠过程中，由于应力作用导致显示区不同区域柱状的隔垫物(PS)压缩量不一致，中间区域的隔垫物对中间区域的液晶的应力较大，从而导致中间区域的液晶向两侧的边缘区域扩散，导致液晶层中的液晶分布不均，使得边缘区域的液晶层的长度大于中间区域的液晶层的长度，液晶层的长度差异会产生光程差，影响显示画面的质量。
发明内容
为了解决现有技术的不足，本发明提供一种曲面显示装置及其显示面板，能够降低中间区域中的隔垫物对液晶产生的应力，避免液晶向边缘区域扩散而出现液晶层的长度差异，改善了显示画面的质量。
本发明提出的具体技术方案为：提供一种显示面板，所述显示面板包括CF基板、TFT基板、多个隔垫物、液晶层及密封层，所述液晶层位于所述CF基板与所述TFT基板之间，所述多个隔垫物设于所述CF基板朝向所述TFT基板的一面，所述密封层位于所述CF基板与所述TFT基板之间并环绕所述液晶层的边缘设置，所述液晶层包括中间区域及位于所述中间区域两侧的两个边缘区域，位于所述中间区域的隔垫物对所述中间区域的液晶产生的应力小于位于所述边缘区域的隔垫物对所述边缘区域的液晶产生的应力，以使得所述CF基板与所述TFT基板之间维持等间距。
可选地，位于所述两个边缘区域中的隔垫物关于所述中间区域对称，位于所述中间区域中的隔垫物关于所述CF基板的中轴线对称。
可选地，位于所述中间区域中的隔垫物的高度小于位于所述边缘区域中的隔垫物的高度。
可选地，位于所述中间区域中的隔垫物的高度沿着从所述中间区域到所述边缘区域的方向上依次递增。
可选地，位于所述边缘区域中的隔垫物的高度沿着从所述中间区域到所述边缘区域的方向上依次递增。
可选地，位于所述中间区域中的隔垫物的密度小于位于所述边缘区域中的隔垫物的密度。
可选地，位于所述中间区域中的隔垫物的密度沿着从所述中间区域到所述边缘区域的方向上依次递增，和/或位于所述边缘区域中的隔垫物的密度沿着从所述中间区域到所述边缘区域的方向上依次递增。
可选地，位于所述中间区域中的隔垫物在沿与所述CF基板平行的方向上的最大长度小于位于所述边缘区域中的隔垫物在沿与所述CF基板平行的方向上的最大长度。
可选地，位于所述中间区域中的隔垫物在沿与所述CF基板平行的方向上的最大长度沿着从所述中间区域到所述边缘区域的方向上依次递增，和/或位于所述边缘区域中的隔垫物在沿与所述CF基板平行的方向上的最大长度沿着从所述中间区域到所述边缘区域的方向上依次递增。
本发明还提供了一种曲面显示装置，所述曲面显示装置包括如上任一所述的显示面板。
本发明提出的显示面板包括包括液晶层和多个隔垫物，所述多个隔垫物设于CF基板朝向TFT基板的一面，所述液晶层包括中间区域及位于所述中间区域两侧的两个边缘区域，位于所述中间区域的隔垫物对所述中间区域的液晶产生的应力小于位于所述边缘区域的隔垫物对所述边缘区域的液晶产生的应力，从而可以避免中间区域的液晶向两侧的边缘区域扩散而导致液晶层的长度差异，使得所述CF基板与所述TFT基板之间维持等间距，改善了显示画面的质 量。
附图说明
图1为实施例1中曲面显示装置的结构示意图；
图2为实施例1中显示面板弯曲前的结构示意图；
图3为实施例1中显示面板弯曲后的结构示意图；
图4为实施例2中显示面板弯曲前的结构示意图；
图5为实施例2中显示面板弯曲后的结构示意图；
图6为实施例3中显示面板弯曲前的结构示意图；
图7为实施例3中显示面板弯曲后的结构示意图。
具体实施方式
以下，将参照附图来详细描述本发明的实施例。然而，可以以许多不同的形式来实施本发明，并且本发明不应该被解释为限制于这里阐述的具体实施例。相反，提供这些实施例是为了解释本发明的原理及其实际应用，从而使本领域的其他技术人员能够理解本发明的各种实施例和适合于特定预期应用的各种修改。在附图中，相同的标号将始终被用于表示相同的元件。
本发明中的显示面板包括CF基板、TFT基板、多个隔垫物、液晶层及密封层，液晶层位于CF基板与TFT基板之间，多个隔垫物设于CF基板朝向TFT基板的一面，密封层位于CF基板与TFT基板之间并环绕液晶层的边缘设置，液晶层包括中间区域及位于中间区域两侧的两个边缘区域，位于中间区域的隔垫物对中间区域的液晶产生的应力小于位于边缘区域的隔垫物对边缘区域的液晶产生的应力，从而可以避免中间区域的液晶向两侧的边缘区域扩散而导致液晶层的长度差异，使得CF基板与TFT基板之间维持等间距，改善了显示画面的质量。
下面通过几个具体的实施例对本发明的显示面板的结构进行描述，当然，这几个具体的实施例仅仅作为示例示出，并不用于对本发明进行限定。
实施例1
参照图1、图2、图3，本实施例中的曲面显示装置包括显示面板1和背光模组2，显示面板1为曲面显示面板，背光模组2为柔性背光模组，背光模组2用于为显示面板1提供光源。具体地，显示面板1包括CF基板11、TFT基板12、多个隔垫物13、液晶层14及密封层15，液晶层14位于CF基板11与TFT基板12之间，多个隔垫物13设于CF基板11朝向TFT基板12的一面，密封层15位于CF基板11与TFT基板12之间并环绕液晶层14的边缘设置，液晶层14包括中间区域14a及位于中间区域两侧的两个边缘区域14b。
CF基板11与TFT基板12相对设置并与密封层15形成密封腔，多个隔垫物13位于该密封腔中，液晶层14的液晶填充于该密封腔中。具体地，位于两个边缘区域14b中的隔垫物13关于中间区域14a对称，位于中间区域14a中的隔垫物关于CF基板11的中轴线对称。位于中间区域14a中的隔垫物13的高度小于位于边缘区域14b中的隔垫物13的高度。本实施例中的隔垫物13为柱状，其材料为具有一定弹性的材料。
在显示面板13弯折过程中，隔垫物13会发生形变，隔垫物13在自身弹性形变力的作用下会对液晶层14中的液晶产生一定的应力，由于CF基板11与TFT基板12与中间区域14a对应的部分受到的应力最大，位于中间区域14a中的液晶受到的挤压力也最大，因此，位于中间区域14a中的液晶会向两边的边缘区域14b中扩散，将位于中间区域14a中的隔垫物13的高度设置为小于位于边缘区域14b中的隔垫物13的高度，这样，位于边缘区域14b中的隔垫物13可以阻挡位于中间区域14a中的液晶向两侧的边缘区域14a中扩散，此外，由于位于边缘区域14b中的隔垫物13的高度大，其自身的弹性形变力也比较大，边缘区域14a中的液晶受到的应力也较大，从而可以进一步阻止位于中间区域14a中的液晶向两侧的边缘区域14a中扩散。
位于中间区域14a中的隔垫物13的高度沿着从中间区域14a到边缘区域14b的方向上依次递增，可以是等差值递增即任意相邻两列隔垫物13之间的间距相等，也可以是不等差值递增即任意相邻两列隔垫物13之间的间距不完全相等或不相等，此时，边缘区域14b中的隔垫物13沿着从中间区域14a到边缘区域14b的方向上的高度可以相等，也可以不相等。
位于边缘区域14b中的隔垫物13的高度沿着从中间区域14a到边缘区域14b的方向上依次递增，可以是等差值递增即任意相邻两列隔垫物13之间的间距相 等，也可以是不等差值递增即任意相邻两列隔垫物13之间的间距不完全相等或不相等，此时，中间区域14a中的隔垫物13沿着从中间区域14a到边缘区域14b的方向上的高度可以相等，也可以不相等。
较佳地，位于中间区域14a中的隔垫物13的高度沿着从中间区域14a到边缘区域14b的方向上依次递增，位于边缘区域14b中的隔垫物13的高度沿着从中间区域14a到边缘区域14b的方向上依次递增，即位于中间区域14a中的隔垫物13与位于边缘区域14b中的隔垫物13呈上升的阶梯式分布。
本实施例中根据显示面板1在弯折过程中不同区域应力的分布来设计不同高度的隔垫物13，通过不同位置的隔垫物13不同的弹性形变力分散液晶层14中液晶受到的应力，从而使得CF基板11与TFT基板12之间维持等间距，避免液晶层14不同区域的光程差产生差异，提升显示面板1的显示画面的质量。
当然，在实际设计过程中，位于中间区域14a中的隔垫物13以及位于边缘区域14b中的隔垫物13的高度可以根据实际需要进行设定。
实施例2
参照图4、图5，本实施例中位于中间区域14a中的隔垫物13的高度与位于边缘区域14b中的隔垫物13的高度相等，位于中间区域14a中的隔垫物13的密度小于位于边缘区域14b中的隔垫物的密度。
将位于中间区域14a中的隔垫物13的密度设置为小于位于边缘区域14b中的隔垫物13的密度，这样，位于边缘区域14b中的隔垫物13的密度较大即数量较多可以阻挡位于中间区域14a中的液晶向两侧的边缘区域14a中扩散，此外，由于位于边缘区域14b中的隔垫物13的密度较大，位于边缘区域14b中的液晶受到的应力也较大，从而可以进一步阻止位于中间区域14a中的液晶向两侧的边缘区域14a中扩散。
位于中间区域14a中的隔垫物13的密度沿着从中间区域14a到边缘区域14b的方向上依次递增，可以是等差值递增即隔垫物13的密度的增长值相等，也可以是不等差值递增即隔垫物13的密度的增长值不完全相等或不相等，此时，边缘区域14b中的隔垫物13沿着从中间区域14a到边缘区域14b的方向上的密度可以完全相等，也可以不相等。
位于边缘区域14b中的隔垫物13的密度沿着从中间区域14a到边缘区域14b的方向上依次递增，可以是等差值递增即隔垫物13的密度的增长值相等，也可以是不等差值递增即隔垫物13的密度的增长值不完全相等或不相等，此时，中间区域14a中的隔垫物13沿着从中间区域14a到边缘区域14b的方向上的密度可以相等，也可以不相等。
较佳地，位于中间区域14a中的隔垫物13的密度沿着从中间区域14a到边缘区域14b的方向上依次递增，位于边缘区域14b中的隔垫物13的密度沿着从中间区域14a到边缘区域14b的方向上依次递增，即位于中间区域14a中的隔垫物13的密度与位于边缘区域14b中的隔垫物13的密度呈上升的阶梯式分布。
本实施例中根据显示面板1在弯折过程中不同区域应力的分布来设计隔垫物13的密度，通过不同位置的隔垫物13的密度不同而产生的不同的弹性形变力分散液晶层14中液晶受到的应力，从而使得CF基板11与TFT基板12之间维持等间距，避免液晶层14不同区域的光程差产生差异，提升显示面板1的显示画面的质量。
当然，在实际设计过程中，位于中间区域14a中的隔垫物13以及位于边缘区域14b中的隔垫物13的密度可以根据实际需要进行设定。
实施例3
参照图6、图7，本实施例中位于中间区域14a中的隔垫物13与位于边缘区域14b中的隔垫物13的高度、密度均相等，位于中间区域14a中的隔垫物13在沿与CF基板11平行的方向上的最大长度小于位于边缘区域14b中的隔垫物13在沿与CF基板11平行的方向上的最大长度，即位于中间区域14a中的隔垫物13在CF基板11上的投影面积比位于边缘区域14a中的隔垫物13在CF基板11上的投影面积小。较佳地，位于中间区域14a中的隔垫物13在沿与CF基板11平行的方向上的最大长度小于位于边缘区域14b中的隔垫物13在沿与CF基板11平行的方向上的最小长度。例如，隔垫物13为圆柱体，则位于中间区域14a中的隔垫物13的底面直径小于位于边缘区域14b中的隔垫物13的底面直径；隔垫物13为圆台，则位于中间区域14a中的隔垫物13的顶面和底面直径均小于位于边缘区域14b中的隔垫物13的顶面和底面直径。
将位于中间区域14a中的隔垫物13在沿与CF基板11平行的方向上的最大长度设置为小于位于边缘区域14b中的隔垫物13在沿与CF基板11平行的方向上的最大长度，这样，位于边缘区域14b中的隔垫物13的尺寸较大可以阻挡位于中间区域14a中的液晶向两侧的边缘区域14a中扩散，此外，由于位于边缘区域14b中的隔垫物13的尺寸较大，位于边缘区域14b中的液晶受到的应力也较大，从而可以进一步阻止位于中间区域14a中的液晶向两侧的边缘区域14a中扩散。
位于中间区域14a中的隔垫物13在沿与CF基板11平行的方向上的最大长度沿着从中间区域14a到边缘区域14b的方向上依次递增，可以是等差值递增即隔垫物13在沿与CF基板11平行的方向上的最大长度的增长值相等，也可以是不等差值递增即隔垫物13在沿与CF基板11平行的方向上的最大长度的增长值不完全相等或不相等，此时，边缘区域14b中的隔垫物13在沿与CF基板11平行的方向上的最大长度沿着从中间区域14a到边缘区域14b的方向上可以完全相等，也可以不相等。
位于边缘区域14b中的隔垫物13在沿与CF基板11平行的方向上的最大长度沿着从中间区域14a到边缘区域14b的方向上依次递增，可以是等差值递增即隔垫物13在沿与CF基板11平行的方向上的最大长度的增长值相等，也可以是不等差值递增即隔垫物13在沿与CF基板11平行的方向上的最大长度的增长值不完全相等或不相等，此时，中间区域14a中的隔垫物13在沿与CF基板11平行的方向上的最大长度沿着从中间区域14a到边缘区域14b的方向上可以完全相等，也可以不相等。
较佳地，位于中间区域14a中的隔垫物13在沿与CF基板11平行的方向上的最大长度沿着从中间区域14a到边缘区域14b的方向上依次递增，位于边缘区域14b中的隔垫物13在沿与CF基板11平行的方向上的最大长度沿着从中间区域14a到边缘区域14b的方向上依次递增，即位于中间区域14a中的隔垫物13在沿与CF基板11平行的方向上的最大长度与位于边缘区域14b中的隔垫物13在沿与CF基板11平行的方向上的最大长度呈上升的阶梯式分布。
本实施例中根据显示面板1在弯折过程中不同区域应力的分布来设计隔垫物13在沿与CF基板11平行的方向上的最大长度，通过不同位置的隔垫物13在沿与CF基板11平行的方向上的最大长度的不同而产生的不同的弹性形变力分散液晶层14中液晶受到的应力，从而使得CF基板11与TFT基板12之间维持等间 距，避免液晶层14不同区域的光程差产生差异，提升显示面板1的显示画面的质量。
当然，在实际设计过程中，位于中间区域14a中的隔垫物13以及位于边缘区域14b中的隔垫物13在沿与CF基板11平行的方向上的最大长度可以根据实际需要进行设定。
以上所述仅是本申请的具体实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本申请原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本申请的保护范围。

Claims (20)

  1. 一种显示面板，其中，包括CF基板、TFT基板、多个隔垫物、液晶层及密封层，所述液晶层位于所述CF基板与所述TFT基板之间，所述多个隔垫物设于所述CF基板朝向所述TFT基板的一面，所述密封层位于所述CF基板与所述TFT基板之间并环绕所述液晶层的边缘设置，所述液晶层包括中间区域及位于所述中间区域两侧的两个边缘区域，位于所述中间区域的隔垫物对所述中间区域的液晶产生的应力小于位于所述边缘区域的隔垫物对所述边缘区域的液晶产生的应力，以使得所述CF基板与所述TFT基板之间维持等间距。
  2. 根据权利要求1所述的显示面板，其中，位于所述两个边缘区域中的隔垫物关于所述中间区域对称，位于所述中间区域中的隔垫物关于所述CF基板的中轴线对称。
  3. 根据权利要求2所述的显示面板，其中，位于所述中间区域中的隔垫物的高度小于位于所述边缘区域中的隔垫物的高度。
  4. 根据权利要求3所述的显示面板，其中，位于所述中间区域中的隔垫物的高度沿着从所述中间区域到所述边缘区域的方向上依次递增。
  5. 根据权利要求3所述的显示面板，其中，位于所述边缘区域中的隔垫物的高度沿着从所述中间区域到所述边缘区域的方向上依次递增。
  6. 根据权利要求4所述的显示面板，其中，位于所述边缘区域中的隔垫物的高度沿着从所述中间区域到所述边缘区域的方向上依次递增。
  7. 根据权利要求2所述的显示面板，其中，位于所述中间区域中的隔垫物的密度小于位于所述边缘区域中的隔垫物的密度。
  8. 根据权利要求7所述的显示面板，其中，位于所述中间区域中的隔垫物的密度沿着从所述中间区域到所述边缘区域的方向上依次递增，和/或位于所述边缘区域中的隔垫物的密度沿着从所述中间区域到所述边缘区域的方向上依次递增。
  9. 根据权利要求2所述的显示面板，其中，位于所述中间区域中的隔垫物在沿与所述CF基板平行的方向上的最大长度小于位于所述边缘区域中的隔垫物在沿与所述CF基板平行的方向上的最大长度。
  10. 根据权利要求9所述的显示面板，其中，位于所述中间区域中的隔垫物在沿与所述CF基板平行的方向上的最大长度沿着从所述中间区域到所述边缘区域的方向上依次递增，和/或位于所述边缘区域中的隔垫物在沿与所述CF基板平行的方向上的最大长度沿着从所述中间区域到所述边缘区域的方向上依次递增。
  11. 一种曲面显示装置，其中，包括显示面板，所述显示面板包括CF基板、TFT基板、多个隔垫物、液晶层及密封层，所述液晶层位于所述CF基板与所述TFT基板之间，所述多个隔垫物设于所述CF基板朝向所述TFT基板的一面，所述密封层位于所述CF基板与所述TFT基板之间并环绕所述液晶层的边缘设置，所述液晶层包括中间区域及位于所述中间区域两侧的两个边缘区域，位于所述中间区域的隔垫物对所述中间区域的液晶产生的应力小于位于所述边缘区域的隔垫物对所述边缘区域的液晶产生的应力，以使得所述CF基板与所述TFT基板之间维持等间距。
  12. 根据权利要求11所述的曲面显示装置，其中，位于所述两个边缘区域中的隔垫物关于所述中间区域对称，位于所述中间区域中的隔垫物关于所述CF基板的中轴线对称。
  13. 根据权利要求12所述的曲面显示装置，其中，位于所述中间区域中的隔垫物的高度小于位于所述边缘区域中的隔垫物的高度。
  14. 根据权利要求13所述的曲面显示装置，其中，位于所述中间区域中的隔垫物的高度沿着从所述中间区域到所述边缘区域的方向上依次递增。
  15. 根据权利要求13所述的曲面显示装置，其中，位于所述边缘区域中的隔垫物的高度沿着从所述中间区域到所述边缘区域的方向上依次递增。
  16. 根据权利要求14所述的曲面显示装置，其中，位于所述边缘区域中的隔垫物的高度沿着从所述中间区域到所述边缘区域的方向上依次递增。
  17. 根据权利要求12所述的曲面显示装置，其中，位于所述中间区域中的隔垫物的密度小于位于所述边缘区域中的隔垫物的密度。
  18. 根据权利要求17所述的曲面显示装置，其中，位于所述中间区域中的隔垫物的密度沿着从所述中间区域到所述边缘区域的方向上依次递增，和/或位于所述边缘区域中的隔垫物的密度沿着从所述中间区域到所述边缘区域的方向上依次递增。
  19. 根据权利要求12所述的曲面显示装置，其中，位于所述中间区域中的隔垫物在沿与所述CF基板平行的方向上的最大长度小于位于所述边缘区域中的隔垫物在沿与所述CF基板平行的方向上的最大长度。
  20. 根据权利要求19所述的曲面显示装置，其中，位于所述中间区域中的隔垫物在沿与所述CF基板平行的方向上的最大长度沿着从所述中间区域到所述边缘区域的方向上依次递增，和/或位于所述边缘区域中的隔垫物在沿与所述CF基板平行的方向上的最大长度沿着从所述中间区域到所述边缘区域的方向上依次递增。
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