WO2023025072A1 - 曲面液晶显示面板和曲面显示装置 - Google Patents

曲面液晶显示面板和曲面显示装置 Download PDF

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Publication number
WO2023025072A1
WO2023025072A1 PCT/CN2022/113811 CN2022113811W WO2023025072A1 WO 2023025072 A1 WO2023025072 A1 WO 2023025072A1 CN 2022113811 W CN2022113811 W CN 2022113811W WO 2023025072 A1 WO2023025072 A1 WO 2023025072A1
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WIPO (PCT)
Prior art keywords
liquid crystal
array substrate
color filter
display panel
crystal display
Prior art date
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PCT/CN2022/113811
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English (en)
French (fr)
Inventor
张彦学
储周硕
曾勇
郭燕茹
仲超
秦蕾
曲则宇
李帅
李仲璘
包玉峰
张宇霆
Original Assignee
京东方科技集团股份有限公司
成都中电熊猫显示科技有限公司
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Application filed by 京东方科技集团股份有限公司, 成都中电熊猫显示科技有限公司 filed Critical 京东方科技集团股份有限公司
Priority to US18/271,046 priority Critical patent/US20240069395A1/en
Publication of WO2023025072A1 publication Critical patent/WO2023025072A1/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
    • 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
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/136222—Colour filters incorporated in the active matrix substrate
    • 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
    • G02F1/133302—Rigid substrates, e.g. inorganic substrates
    • 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
    • G02F1/133305—Flexible substrates, e.g. plastics, organic film
    • 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
    • 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
    • G02F1/1345—Conductors connecting electrodes to cell terminals
    • G02F1/13458—Terminal pads

Definitions

  • the present application relates to the field of display technology, in particular to a curved liquid crystal display panel and a curved display device.
  • curved liquid crystal display panels can be widely used in devices with display functions such as televisions or computers.
  • a curved liquid crystal display panel includes: a color filter substrate and an array substrate oppositely arranged. Among them, the curved liquid crystal display panel is usually obtained by cutting and bending a large-area display motherboard.
  • Embodiments of the present application provide a curved liquid crystal display panel and a curved display device. Described technical scheme is as follows:
  • a curved liquid crystal display panel includes: a color filter substrate and an array substrate oppositely arranged, and the side of the color filter substrate facing away from the array substrate is the The display surface of the curved liquid crystal display panel, and the display surface is a concave display surface;
  • the orthographic projection of the color filter substrate on the array substrate is located inside the array substrate;
  • the color filter substrate has a first side and a second side oppositely arranged, and the first side and the second side are arc-shaped sides;
  • the array substrate has a third side and a fourth side oppositely arranged, and the third side and the fourth side are arc-shaped sides;
  • the first side is adjacent to the third side and staggered from the third side, and the second side is adjacent to the fourth side and staggered from the fourth side;
  • both the side of the array substrate close to the color filter substrate and the side away from the color filter substrate have structures formed by grinding process.
  • the structure formed by the grinding process is a rounded corner or a chamfered corner.
  • the curved liquid crystal display panel has a display area and a non-display area located at the periphery of the display area, and the curved liquid crystal display panel further includes: located in the non-display area and surrounding the color filter substrate and Glue is applied to the side of the array substrate.
  • the first side, the second side, the third side and the fourth side are all in contact with the side glue, and the side glue covers the protrusions of the array substrate area, the protruding area is the area protruding from the color filter substrate on the side of the array substrate close to the color filter substrate.
  • the array substrate has a plurality of binding structures located in the non-display area, the arrangement direction of the plurality of binding structures is parallel to the extension direction of the third side, and the plurality of A binding structure is adjacent to the third side relative to the fourth side.
  • the vertical distance between the first side and the third side ranges from 2 mm to 2.5 mm;
  • a vertical distance between the second side and the fourth side ranges from 0.3 mm to 1 mm.
  • the color filter substrate further has a fifth side and a sixth side oppositely arranged, and the fifth side and the sixth side are both rectangular sides;
  • the array substrate also has a seventh side and an eighth side opposite to each other, and the seventh side and the eighth side are both rectangular sides;
  • the fifth side is coplanar with the seventh side
  • the sixth side is coplanar with the eighth side.
  • the curved liquid crystal display panel further includes: a liquid crystal layer located between the array substrate and the color filter substrate.
  • the curved liquid crystal display panel further includes: a first polarizer and a second polarizer;
  • the first polarizer is located on a side of the color filter substrate away from the array substrate, and the second polarizer is located on a side of the array substrate away from the color filter substrate.
  • a curved display device includes: the above-mentioned curved liquid crystal display panel and a backlight module.
  • a curved liquid crystal display panel including: a color filter substrate and an array substrate.
  • FIG. 1 is a schematic structural view of a curved liquid crystal display panel
  • FIG. 2 is a top view of a curved liquid crystal display panel shown in an embodiment of the present application
  • Fig. 3 is a cross-sectional view at A1-A2 of the curved liquid crystal display panel shown in Fig. 2;
  • FIG. 4 is a schematic structural diagram of another curved liquid crystal display panel provided by an embodiment of the present application.
  • Fig. 5 is a schematic structural diagram of another curved liquid crystal display panel provided by an embodiment of the present application.
  • FIG. 6 is a schematic structural diagram of another curved liquid crystal display panel provided by an embodiment of the present application.
  • Fig. 7 is a cross-sectional view at B1-B2 of the curved liquid crystal display panel shown in Fig. 6;
  • FIG. 8 is a schematic structural diagram of another curved liquid crystal display panel provided by an embodiment of the present application.
  • FIG. 9 is a schematic structural diagram of a curved display device provided by an embodiment of the present application.
  • FIG. 10 is a cross-sectional view at C1-C2 of the curved display device shown in FIG. 9 .
  • a curved display device may refer to a display device with a certain curvature on the display surface, that is, a display device with a certain curved shape.
  • the curvature of a curved display device is basically consistent with the curvature of human eyeballs.
  • curved TV Since the curved TV matches the arc-shaped structure of the human eye, it is more in line with the shape of the human eye in terms of ergonomics.
  • the display surface of the curved TV can achieve a better viewing angle, so it can bring a more comfortable viewing experience to users watching the curved TV.
  • a curved liquid crystal display panel is usually obtained by cutting a large-area display motherboard to form a flat liquid crystal display panel, and then bending the flat liquid crystal display panel. During the cutting process, microcracks are likely to appear on the edge of the flat liquid crystal display panel after cutting. Curved liquid crystal display panels with microcracks have low strength and are prone to the risk of breaking. Therefore, it is usually necessary to use a grinding tool to grind the cut flat liquid crystal display panel, so as to eliminate the microcracks appearing at the edge of the curved liquid crystal display panel.
  • FIG. 1 is a schematic structural diagram of a curved liquid crystal display panel.
  • the curved liquid crystal display panel 10 includes: a color filter substrate 101 and an array substrate 102 disposed opposite to each other. After the cutting process of the color filter substrate 101 and the array substrate 102 is completed, microcracks are easily generated at the edges of the color filter substrate 101 and the array substrate 102 . Therefore, the edges of the color filter substrate 101 and the array substrate 102 in the display panel 10 can be ground through a grinding process to eliminate microcracks at the edges of the color filter substrate 101 and the array substrate 102 .
  • the edges of the color filter substrate 101 in the curved liquid crystal display panel 10 and the array substrate 102 at positions other than the binding position are flush. Therefore, when the curved liquid crystal display panel 10 is in a flat state, only the edge of the color filter substrate 101 on the side away from the array substrate 102 can be sufficiently ground through the grinding process, and the side of the array substrate 102 away from the color filter substrate 101 can be fully ground. The edge of the array substrate 102 close to the color filter substrate 101 cannot be sufficiently ground, and the edge of the color filter substrate 101 close to the array substrate 102 cannot be sufficiently ground.
  • the array substrate 102 faces away from the display surface of the display panel 10 relative to the color filter substrate 101 . Therefore, the bending stress experienced by the array substrate 102 is greater than the bending stress experienced by the color filter substrate 101 . In this way, when the edge of the array substrate 102 close to the color filter substrate 101 is not sufficiently ground, the microcracks at the edge of the array substrate 102 close to the color filter substrate 101 will be further enlarged under the influence of bending stress, Furthermore, it is very easy to cause cracks on the array substrate 102 , resulting in a low product yield of the curved display device.
  • Embodiments of the present application provide a curved liquid crystal display panel and a curved display device, which can solve the above-mentioned problems in the related art.
  • FIG. 2 is a top view of a curved liquid crystal display panel shown in an embodiment of the present application
  • FIG. 3 is a cross-sectional view at A1-A2 of the curved liquid crystal display panel shown in FIG. 2
  • the curved liquid crystal display panel 20 may include: a color filter substrate 21 and an array substrate 22 disposed opposite to each other.
  • the side of the color filter substrate 21 facing away from the array substrate 22 is the display surface 20 a of the curved liquid crystal display panel 20
  • the display surface 20 a is a concave display surface. That is, the array substrate 22 is away from the display surface 20 a of the curved liquid crystal display panel 20 relative to the color filter substrate 21 .
  • the display surface 20 a of the curved liquid crystal display panel 20 is the side that displays images and faces the user viewing the curved liquid crystal display panel 20 .
  • the orthographic projection of the color filter substrate 21 on the array substrate 22 can be located inside the array substrate 22, that is, the area of the side of the color filter substrate 21 facing the array substrate 22 is smaller than that of the array substrate 22 facing the color filter substrate 21. side area.
  • the color filter substrate 21 has a first side D1 and a second side D2 opposite to each other, and both the first side D1 and the second side D2 are arc-shaped sides.
  • the array substrate 22 has a third side D3 and a fourth side D4 opposite to each other. Both the third side D3 and the fourth side D4 are arc-shaped sides.
  • the first side D1 of the color filter substrate 21 is adjacent to the third side D3 of the array substrate 22 and staggered from the third side D3 of the array substrate 22 .
  • the second side D2 of the color filter substrate 21 is adjacent to the fourth side D4 of the array substrate 22 and staggered from the fourth side D4 of the array substrate 22 .
  • the side of the array substrate 22 close to the color filter substrate 21 and the side away from the color filter substrate 21 have structures 222 formed by grinding process.
  • the display surface 20a of the curved liquid crystal display panel 20 is a concave display surface
  • the array substrate 22 in the curved liquid crystal display panel 20 is away from the display surface 20a of the curved liquid crystal display panel 20 relative to the color filter substrate 21 . Therefore, the bending stress experienced by the array substrate 22 is greater than the bending stress experienced by the color filter substrate 21 . Since the orthographic projection of the color filter substrate 21 on the array substrate 22 is located in the array substrate 22, and the first side D1 of the color filter substrate 21 is offset from the third side D3 of the array substrate 22, the second side D2 of the color filter substrate 21 Staggered with the fourth side D4 of the array substrate 22 .
  • both the side of the array substrate 22 close to the color filter substrate 21 and the side away from the color filter substrate 21 can be sufficiently ground to remove the array substrate.
  • 22 microcracks at the edge of the side close to the color filter substrate 21 and the edge of the side away from the color filter substrate 21 can be effectively avoided, thereby reducing the probability of cracking in the array substrate 22, thereby improving integration.
  • the product yield rate of the curved display device of the curved liquid crystal display panel 20 is improved.
  • the embodiment of the present application provides a curved liquid crystal display panel, including: a color filter substrate and an array substrate.
  • a curved liquid crystal display panel including: a color filter substrate and an array substrate.
  • the structure 222 formed by the grinding process on one side of the 21 may be a fillet 222A.
  • Rounding 222A may refer to the effect of creating a smooth transition between two adjacent surfaces. That is, the original corner can be replaced by a circular arc tangent to both sides of the corner, and the size of the rounded corner 222A can be represented by the radius of the circular arc.
  • the radius of the rounded corner 222A may be 0.15 millimeters to 0.4 millimeters. It should be noted that the radius of the rounded corner 222A may also be other values, such as 0.6 mm, which is not limited in this embodiment of the present application.
  • the joints between the third side (not shown in the figure) and the fourth side D4 of the array substrate 22 and the first surface L1 and the second surface L2 of the array substrate 22 can be smooth and rounded.
  • the first surface L1 of the array substrate 22 may refer to the surface of the array substrate 22 away from the color filter substrate 21
  • the second surface L2 of the array substrate 22 may refer to the surface of the array substrate 22 facing the color filter substrate 21 .
  • the third side (not shown in the figure) and the fourth side D4 of the array substrate 22 are trimmed by grinding process, the side of the array substrate 22 close to the color filter substrate 21 and the side away from the color filter substrate 21 can be removed.
  • Microcracks at the edge of the substrate 22 near the color filter substrate 21 and at the edge of the side away from the color filter substrate 21 It can effectively avoid the expansion of microcracks when the array substrate 22 of the curved liquid crystal display panel 20 is subject to a large bending stress, thereby effectively preventing the array substrate 22 from cracking due to bending stress.
  • the rounded corner 222A can also avoid stress concentration at the edge of the array substrate 22 near the color filter substrate 21 and the edge of the side away from the color filter substrate 21 , and can improve the strength of the array substrate 22 .
  • the volume of the second target side surface 221 of the array substrate 22 that is ground away by the grinding process can be controlled by controlling the radius of the arc on the fillet 222A.
  • FIG. 4 is a schematic structural diagram of another curved liquid crystal display panel provided in an embodiment of the present application.
  • the side of the array substrate 22 close to the color filter substrate 21 and the side away from the color filter substrate 21 are formed by a grinding process 222 May be chamfer 222B.
  • the chamfer 222B may refer to a structure in which the corner of the array substrate 22 at the position of the second target side surface 221 is processed into a chamfer through a grinding process.
  • the chamfer 222B can remove microcracks at the edge of the array substrate 22 near the color filter substrate 21 and the edge of the side away from the color filter substrate 21 . It can effectively avoid the expansion of microcracks when the array substrate 20 of the curved liquid crystal display panel 20 is subject to a large bending stress, thereby effectively preventing the array substrate 22 from cracking due to bending stress.
  • the angle ⁇ between the slope of the chamfer 222B and the first surface L1 of the array substrate 22 may be 135 degrees. It should be noted that the included angle ⁇ may also be another angle, for example, the included angle ⁇ is 140 degrees, which is not limited in this embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of another curved liquid crystal display panel provided in an embodiment of the present application.
  • the curved liquid crystal display panel 20 may have a display area 201 and a non-display area 202 located around the display area 201 .
  • the curved liquid crystal display panel 20 may further include: a side glue 23 located in the non-display area 202 of the curved liquid crystal display panel 20 and disposed around the color filter substrate 21 and the array substrate 22 .
  • the side glue 23 can be used to paste the peripheries of the color filter substrate 21 and the array substrate 22 .
  • the material of the side glue 23 may include a black light-shielding material, and the black light-shielding material may be used to prevent light leakage around the color filter substrate 21 and the array substrate 22 .
  • the first side (not shown) and the second side D2 of the color filter substrate 21 and the third side (not shown) and the fourth side D4 of the array substrate 22 can be in contact with the side glue 23.
  • the side glue 23 can cover the protruding area 223 of the array substrate 22 .
  • the protruding region 223 of the array substrate 22 is a region protruding from the color filter substrate 21 on the side of the array substrate 22 close to the color filter substrate 21 .
  • the side glue 23 may have a first target side 231 away from the color filter substrate 21 and the array substrate 22 .
  • the minimum distance between the second side D2 of the color filter substrate 21 and the first target side 231 of the side glue 23 may be greater than the minimum distance between the fourth side D4 of the array substrate 22 and the first target side 231 of the side glue 23 .
  • the side glue 23 may also have a second target side (not shown in the figure) corresponding to the first target side 231 .
  • the minimum distance between the first side of the color filter substrate 21 and the second target side of the side glue 23 may be greater than the minimum distance between the third side of the array substrate 22 and the second target side of the side glue 23 .
  • the side glue 23 can support the peripheries of the color filter substrate 21 and the array substrate 22, and can avoid the gap between the fourth side D4 of the array substrate 22 and the second side D2 of the color filter substrate 21 and the array substrate 22.
  • a suspension structure is formed between the third side surface of the color filter substrate 21 and the first side surface of the color filter substrate 21 .
  • the side glue 23 can strengthen the degree of connection between the color filter substrate 21 and the array substrate 22 .
  • the material of the side adhesive 23 may be pressure sensitive adhesive (English: Pressure Sensitive Adhesive; abbreviation: PSA).
  • the material of the side coating glue 23 may be ultraviolet (English: Ultraviolet Rays; abbreviation: UV) curing glue, which is an adhesive cured by ultraviolet light irradiation, which can be used as an adhesive.
  • UV-curable adhesive includes a photoinitiator (or photosensitizer)
  • the photoinitiator generates active free radicals or cations after absorbing ultraviolet light under the irradiation of ultraviolet rays, and initiates monomer polymerization and crosslinking chemical reactions, making the adhesive Converts from liquid to solid in seconds. Therefore, after coating the liquid UV-curable glue on the peripheries of the color filter substrate 21 and the array substrate 22 , the liquid UV-curable glue can be irradiated with ultraviolet rays to solidify the UV-curable glue.
  • side coating glue 23 in the embodiment of the present application may also include glue of other materials, which is not limited in the embodiment of the present application.
  • FIG. 6 is a schematic structural diagram of another curved liquid crystal display panel provided in an embodiment of the present application.
  • the array substrate 22 may have a plurality of binding structures 224 located in the non-display area.
  • the arrangement direction of the plurality of binding structures 224 is parallel to the extending direction of the third side D3 of the array substrate 22 , and the plurality of binding structures 224 is closer to the third side D3 of the array substrate 22 relative to the fourth side of the array substrate 22 .
  • the binding structure 224 can be electrically connected to a plurality of thin film transistors on the array substrate 22 .
  • the curved liquid crystal display panel 20 may also include Chip On Film (English: Chip On Film; abbreviation: COF) and printed circuit boards (English: Printed circuit boards; abbreviation: PCB).
  • the bonding structure 224 can be connected to a driver chip (English: Integrated Circuit Chip; abbreviation: IC) through a COF and a printed circuit board, so as to input a driving signal into the curved liquid crystal display panel.
  • the driving signal controls the deflection of the liquid crystal molecules in the liquid crystal layer 30 through the thin film transistors on the array substrate 22 , so that the curved liquid crystal display panel displays images.
  • the bonding structure 224 and the COF can be connected by anisotropic conductive film (English: Anisotropic Conductive Film; abbreviation: ACF) for fixing and conduction.
  • the vertical distance m1 between the first side of the color filter substrate 21 and the third side D3 of the array substrate 22 ranges from 2 millimeters to 2.5 millimeters; the second side of the color filter substrate 21
  • the vertical distance m2 between D2 and the fourth side of the array substrate 22 ranges from 0.3 mm to 1 mm.
  • the microcracks of the array substrate 22 at the third side D3 and the fourth side D4 can be removed by a grinding tool used in the grinding process.
  • excessive grinding of the third side D3 and the fourth side D4 of the array substrate 22 by the grinding tool can be avoided.
  • the color filter substrate 21 is retracted by 0.3 mm to 1 mm compared with the array substrate 22 , so as to avoid affecting the width of the frame of the curved liquid crystal display panel 20 .
  • the color filter substrate 21 also has a fifth side D5 and a sixth side D6 opposite to each other, and both the fifth side D5 and the sixth side D6 may be rectangular sides. Moreover, both the fifth side D5 and the sixth side D6 may be connected to the first side D1 and the second side D2 of the color filter substrate 21 .
  • the array substrate 22 also has a seventh side D7 and an eighth side D8 oppositely disposed, and both the seventh side D7 and the eighth side D8 may be rectangular sides. And both the seventh side D7 and the eighth side D8 may be connected to the third side D3 and the fourth side D4 of the array substrate 22 .
  • the fifth side D5 of the color filter substrate 21 is coplanar with the seventh side D7 of the array substrate 22
  • the sixth side D6 of the color filter substrate 21 is coplanar with the eighth side D8 of the array substrate 22 .
  • FIG. 7 is a cross-sectional view at B1-B2 of the curved liquid crystal display panel shown in FIG. 6 . Since the fifth side D5 and the sixth side D6 of the color filter substrate 21 and the seventh side D7 and the eighth side D8 of the array substrate 22 can maintain a straight state, that is, the fifth side D5 and the sixth side of the color filter substrate 21 D6 and the seventh side D7 and the eighth side D8 of the array substrate 22 may not be affected by the bending stress.
  • the color filter substrate 21 and the array substrate 22 can be flush at the positions of the fifth side D5 and the seventh side D7, and the color filter substrate 21 and the array substrate 22 can be flush at the positions of the sixth side D6 and the eighth side D8.
  • the frame of the curved liquid crystal display panel 22 can be made narrower.
  • the curved liquid crystal display panel may further include: a liquid crystal layer located between the array substrate and the color filter substrate.
  • the array substrate may be a thin film transistor array substrate
  • the thin film transistor array substrate may include a base substrate and a plurality of pixel units located on the base substrate, and each pixel unit may include a thin film transistor and a pixel electrode connected to each other.
  • the color filter substrate may include a transparent substrate and a black matrix and a color resist layer on the transparent substrate.
  • the color-resist layer may include color-resist units of three colors, red, green and blue.
  • the material of the liquid crystal layer may be liquid crystal.
  • Liquid crystal refers to a substance that can have both liquid and crystal within a certain temperature range. The material with the characteristics of both is called liquid crystal (English: Liquid Crystal; abbreviation: LC). That is, after the liquid crystal is in a molten state or dissolved by a solvent, although it loses the rigidity of a solid substance, it obtains the fluidity of a liquid, and retains the anisotropic orderly arrangement of some crystalline substance molecules, forming a combination of crystal and An intermediate state of some of the properties of a liquid. When the temperature is raised, the liquid crystal turns into a clear, isotropic liquid as the temperature rises. Conversely, when liquid crystals change from liquid to solid, they also go through an intermediate state.
  • the curved liquid crystal display panel can control the rotation direction of the liquid crystal molecules in the liquid crystal layer by applying a driving voltage on the array substrate and the color filter substrate, so as to refract the light passing through the curved liquid crystal display panel to generate a picture.
  • Curved liquid crystal display panels are widely used in the display field due to their advantages of high resolution, light weight, low energy consumption and low radiation.
  • the curved liquid crystal display panel may also include a frame sealant.
  • the array substrate and the color filter substrate are arranged oppositely, the liquid crystal layer is arranged between the color filter substrate and the array substrate, and the sealant can be located on the periphery of the liquid crystal layer to connect the array substrate and the color filter substrate, and can make the array substrate and the color filter substrate
  • the color filter substrates are stacked to form a sealed liquid crystal cell.
  • the array substrate is closer to the display surface of the curved liquid crystal display panel than the color filter substrate.
  • FIG. 8 is a schematic structural diagram of another curved liquid crystal display panel provided by an embodiment of the present application.
  • the curved liquid crystal display panel 20 may further include: a first polarizer 24 and a second polarizer 25 .
  • the first polarizer 24 and the second polarizer 25 can control the polarization direction of a specific light beam.
  • Both the first polarizer 24 and the second polarizer 25 may include a polyvinyl alcohol (English: polyvinyl alcohol; abbreviation: PVA) film, a cellulose triacetate (English: cellulose tri-acetate; abbreviation TAC) film, a protective film, and a laminate. Sensitive glue, etc.
  • the first polarizer 24 is located on the side of the color filter substrate 21 away from the array substrate 22
  • the second polarizer 25 is located on the side of the array substrate 22 away from the color filter substrate 21 .
  • the first polarizer 24 and the second polarizer 25 are located on both sides of the color filter substrate 21 and the array substrate 22 respectively.
  • the second polarizer 25 can be used to convert the beam received by the curved liquid crystal display panel 20 into polarized light.
  • the sheet 24 can be used to analyze the polarized light modulated by the liquid crystal layer in the color filter substrate 21 and the array substrate 22 to generate light and dark contrast, thereby generating a display image.
  • the embodiment of the present application provides a curved liquid crystal display panel, including: a color filter substrate and an array substrate.
  • a curved liquid crystal display panel including: a color filter substrate and an array substrate.
  • FIG. 9 is a schematic structural diagram of a curved display device provided by an embodiment of the present application.
  • the curved display device 30 may include: a curved liquid crystal display panel 20 and a backlight module (not shown in the figure).
  • the curved liquid crystal display panel 20 may be the curved liquid crystal display panel 20 provided in the above embodiments.
  • FIG. 10 is a cross-sectional view of the display device shown in FIG. 9 at C1 - C2 .
  • the backlight module 31 may be a direct-type backlight module, and the curvature of the direct-type backlight module may be the same as that of the curved liquid crystal display panel 20, so that the intensity of light received by each position of the curved liquid crystal display panel 20 is relatively uniform.
  • the backlight module 31 may also be an edge-type backlight module, which is not limited in this embodiment of the present application.

Abstract

一种曲面液晶显示面板（20）和曲面显示装置，曲面液晶显示面板（20）包括：包括：彩膜基板（21）以及阵列基板（22）。通过将彩膜基板的（21）两个弧形侧面分别与相邻的阵列基板（22）的两个弧形侧面错开，使得在阵列基板（22）的两个弧形侧面所在位置处，阵列基板（22）靠近彩膜基板（21）的一侧和远离彩膜基板（21）的一侧可以进行充分研磨，以去除阵列基板（22）靠近彩膜基板（21）的一侧的边缘和远离彩膜基板（21）的一侧的边缘处的微裂纹。可以有效的避免曲面液晶显示面板（20）中阵列基板（22）受到较大的弯曲应力而出现的微裂纹扩大的问题，从而可以降低阵列基板（22）出现破裂现象的概率，进而可以提高集成了曲面液晶显示面板（20）的曲面显示装置的产品良率。

Description

曲面液晶显示面板和曲面显示装置
本申请要求于2021年8月27日提交的申请号为202110998013.2、发明名称为“曲面液晶显示面板和曲面显示装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及显示技术领域，特别涉及一种曲面液晶显示面板和曲面显示装置。
背景技术
目前，曲面液晶显示面板可以广泛应用于电视或者计算机等具有显示功能的设备中。
一种曲面液晶显示面板包括：相对设置的彩膜基板和阵列基板。其中，曲面液晶显示面板通常是由一块面积较大的显示母板进行切割后，再进行弯曲得到的。
然而，在通过切割得到平板状的液晶显示面板后，平板状的液晶显示面板中的阵列基板的边缘极易产生切割微裂纹。这样，在将平板状的液晶显示面板进行弯曲以将其装配到曲面显示装置中时，该曲面液晶显示面板边缘处的微裂纹极易扩大，导致阵列基板出现破裂的现象，影响曲面显示装置的产品良率。
发明内容
本申请实施例提供了一种曲面液晶显示面板和曲面显示装置。所述技术方案如下：
根据本申请的第一方面，提供了一种曲面液晶显示面板，所述曲面液晶显示面板包括：相对设置的彩膜基板和阵列基板，所述彩膜基板背离所述阵列基板的一面为所述曲面液晶显示面板的显示面，且所述显示面为凹面显示面；
其中，所述彩膜基板在所述阵列基板上的正投影位于所述阵列基板内；
所述彩膜基板具有相对设置的第一侧面和第二侧面，所述第一侧面和所述第二侧面均为弧形侧面；
所述阵列基板具有相对设置的第三侧面和第四侧面，所述第三侧面与所述第四侧面均为弧形侧面；
所述第一侧面与所述第三侧面相邻，且与所述第三侧面错开，所述第二侧面与所述第四侧面相邻，且与所述第四侧面错开；
在所述第三侧面和所述第四侧面所在位置处，所述阵列基板靠近所述彩膜基板的一侧和远离所述彩膜基板的一侧均具有由研磨工艺形成的结构。
可选地，所述由研磨工艺形成的结构为圆角或者倒角。
可选地，所述曲面液晶显示面板具有显示区以及位于所述显示区外围的非显示区，所述曲面液晶显示面板还包括：位于所述非显示区内，且围绕所述彩膜基板和所述阵列基板设置的侧涂胶。
可选地，所述第一侧面、所述第二侧面、所述第三侧面和所述第四侧面均与所述侧涂胶接触，且所述侧涂胶覆盖所述阵列基板的凸出区域，所述凸出区域为所述阵列基板靠近所述彩膜基板的一侧中凸出于所述彩膜基板的区域。
可选地，所述阵列基板具有位于所述非显示区域内的多个绑定结构，所述多个绑定结构的排布方向平行于所述第三侧面的延伸方向，且所述多个绑定结构相对于所述第四侧面靠近所述第三侧面。
可选地，所述第一侧面和所述第三侧面之间的垂直距离的范围为2毫米至2.5毫米；
所述第二侧面与所述第四侧面之间的垂直距离的范围为0.3毫米至1毫米。
可选地，所述彩膜基板还具有相对设置的第五侧面和第六侧面，所述第五侧面和所述第六侧面均为矩形侧面；
所述阵列基板还具有相对设置的第七侧面和第八侧面，所述第七侧面和所述第八侧面均为矩形侧面；
其中，所述第五侧面与所述第七侧面共面，所述第六侧面与所述第八侧面共面。
可选地，所述曲面液晶显示面板还包括：位于所述阵列基板和所述彩膜基板之间的液晶层。
可选地，所述曲面液晶显示面板还包括：第一偏光片以及第二偏光片；
所述第一偏光片位于所述彩膜基板背离所述阵列基板的一侧，所述第二偏光片位于所述阵列基板背离所述彩膜基板的一侧。
根据本申请的另一方面，提供了一种曲面显示装置，所述曲面显示装置包 括：上述的曲面液晶显示面板及背光模组。
本申请实施例提供的技术方案带来的有益效果至少包括：
提供了一种曲面液晶显示面板，包括：彩膜基板以及阵列基板。通过将彩膜基板的两个弧形侧面分别与相邻的阵列基板的两个弧形侧面错开，使得在阵列基板的两个弧形侧面所在位置处，阵列基板靠近彩膜基板的一侧和远离彩膜基板的一侧可以进行充分研磨，以去除阵列基板靠近彩膜基板的一侧的边缘和远离彩膜基板的一侧的边缘处的微裂纹。可以有效的避免曲面液晶显示面板中阵列基板受到较大的弯曲应力而出现的微裂纹扩大的问题，从而可以降低阵列基板出现破裂现象的概率，进而可以提高集成了该曲面液晶显示面板的曲面显示装置的产品良率。
附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是一种曲面液晶显示面板的结构示意图；
图2是本申请实施例示出的一种曲面液晶显示面板的俯视图；
图3是图2所示的曲面液晶显示面板在A1-A2处的截面图；
图4是本申请实施例提供的另一种曲面液晶显示面板的结构示意图；
图5是本申请实施例提供的另一种曲面液晶显示面板的结构示意图；
图6是本申请实施例提供的另一种曲面液晶显示面板的结构示意图；
图7是图6所示的曲面液晶显示面板在B1-B2处的截面图；
图8是本申请实施例提供的另一种曲面液晶显示面板的结构示意图；
图9是本申请实施例提供的一种曲面显示装置的结构示意图；
图10是图9所示的曲面显示装置在C1-C2处的截面图。
通过上述附图，已示出本申请明确的实施例，后文中将有更详细的描述。这些附图和文字描述并不是为了通过任何方式限制本申请构思的范围，而是通过参考特定实施例为本领域技术人员说明本申请的概念。
具体实施方式
为使本申请的目的、技术方案和优点更加清楚，下面将结合附图对本申请实施方式作进一步地详细描述。
随着显示技术的发展，曲面显示装置也越来越多。曲面显示装置可以指显示面带有一定曲率，即具有一定曲面形态的显示装置，一般曲面显示装置的曲率与人类眼球弧度基本一致。如，曲面电视。由于曲面电视与弧形的人眼构造相吻合，在人体工学的方面更符合人眼的形状，能够使曲面显示面上的不同位置到达眼睛的距离相等，消除了平面显示面边缘的视觉扭曲；并且，曲面电视的显示面在可以实现更优良的可视角度，因此能为观看曲面电视的用户带来更舒适的观看体验。
目前，在曲面装置的制造过程中，曲面液晶显示面板的制造是其中一个重要环节。曲面液晶显示面板通常是由一块面积较大的显示母板进行切割后形成平板状的液晶显示面板，再将平板状的液晶显示面板进行弯曲得到的。由于在切割过程中，切割后的平板状的液晶显示面板的边缘容易出现微裂纹。携带微裂纹的曲面液晶显示面板的强度较低，容易发生破碎的风险。因此，通常还需要采用研磨工具对切割后的平板状的液晶显示面板进行研磨，以消除曲面液晶显示面板边缘处出现的微裂纹。
如图1所示，图1是一种曲面液晶显示面板的结构示意图，该曲面液晶显示面板10包括：相对设置的彩膜基板101和阵列基板102。由于彩膜基板101和阵列基板102在切割工艺完成之后，彩膜基板101和阵列基板102的边缘处极易产生微裂纹。因此，可以通过研磨工艺对显示面板10中的彩膜基板101和阵列基板102的边缘进行研磨，以消除彩膜基板101和阵列基板102的边缘处的微裂纹。
但是，曲面液晶显示面板10中的彩膜基板101和阵列基板102中除了绑定位置之外的其他位置处的边缘均是齐平的。因此，在该曲面液晶显示面板10在平板状态时，仅能够通过研磨工艺对彩膜基板101远离阵列基板102的一侧的边缘进行充分研磨，以及对阵列基板102远离彩膜基板101的一侧的边缘进行充分研磨，无法对阵列基板102靠近彩膜基板101的一侧的边缘进行充分研磨，且无法对彩膜基板101靠近阵列基板102的一侧的边缘进行充分研磨。
曲面液晶显示面板10在后续的工序中被装配到曲面显示装置中后，由于曲面显示装置的显示面通常为凹面显示面，阵列基板102相对于彩膜基板101背离显示面板10的显示面。因此，阵列基板102所受到的弯曲应力大于彩膜基板 101所受到的弯曲应力。这样，当阵列基板102靠近彩膜基板101的一侧的边缘未进行充分研磨时，阵列基板102靠近彩膜基板101的一侧的边缘处的微裂纹会在弯曲应力的影响下进一步被扩大，进而极易导致阵列基板102出现破裂的现象，导致曲面显示装置的产品良率较低。
本申请实施例提供了一种曲面液晶显示面板和曲面显示装置，能够解决上述相关技术中存在的问题。
请参考图2和图3，图2是本申请实施例示出的一种曲面液晶显示面板的俯视图，图3是图2所示的曲面液晶显示面板的在A1-A2处的截面图。该曲面液晶显示面板20可以包括：相对设置的彩膜基板21和阵列基板22。其中，彩膜基板21背离阵列基板22的一面为曲面液晶显示面板20的显示面20a，且显示面20a为凹面显示面。也即是，阵列基板22相对于彩膜基板21背离曲面液晶显示面板20的显示面20a。曲面液晶显示面板20的显示面20a即为显示图像以及朝向观看曲面液晶显示面板20的用户的一面。
在本申请实施例中，彩膜基板21在阵列基板22上的正投影可以位于阵列基板22内，即彩膜基板21朝向阵列基板22的一侧的面积小于阵列基板22朝向彩膜基板21一侧的面积。
彩膜基板21具有相对设置的第一侧面D1和第二侧面D2，第一侧面D1和第二侧面D2均为弧形侧面。阵列基板22具有相对设置的第三侧面D3和第四侧面D4，第三侧面D3与第四侧面D4均为弧形侧面。
彩膜基板21的第一侧面D1与阵列基板22的第三侧面D3相邻，且与阵列基板22的第三侧面D3错开。彩膜基板21的第二侧面D2与阵列基板22的第四侧面D4相邻，且与阵列基板22的第四侧面D4错开。
在阵列基板22的第三侧面D3和第四侧面D4所在位置处，阵列基板22靠近彩膜基板21的一侧和远离彩膜基板21的一侧均具有由研磨工艺形成的结构222。
本申请中，由于曲面液晶显示面板20的显示面20a为凹面显示面，且曲面液晶显示面板20中的阵列基板22相对于彩膜基板21背离曲面液晶显示面板20的显示面20a。因此，阵列基板22所受到的弯曲应力大于彩膜基板21所受到的弯曲应力。又由于彩膜基板21在阵列基板22上的正投影位于阵列基板22内， 且彩膜基板21的第一侧面D1与阵列基板22的第三侧面D3错开，彩膜基板21的第二侧面D2与阵列基板22的第四侧面D4错开。因此，在阵列基板22的第三侧面D3和第四侧面D4所在位置处，阵列基板22靠近彩膜基板21的一侧和远离彩膜基板21的一侧均可以进行充分研磨，以去除阵列基板22靠近彩膜基板21的一侧的边缘和远离彩膜基板21的一侧的边缘处的微裂纹。如此，可以有效的避免在将曲面液晶显示面板20中的阵列基板22受到较大的弯曲应力而出现的微裂纹扩大的问题，从而可以降低阵列基板22出现破裂现象的概率，进而可以提高了集成了该曲面液晶显示面板20的曲面显示装置的产品良率。
综上所述，本申请实施例提供了一种曲面液晶显示面板，包括：彩膜基板以及阵列基板。通过将彩膜基板的两个弧形侧面分别与相邻的阵列基板的两个弧形侧面错开，使得在阵列基板的两个弧形侧面所在位置处，阵列基板靠近彩膜基板的一侧和远离彩膜基板的一侧可以进行充分研磨，以去除阵列基板靠近彩膜基板的一侧的边缘和远离彩膜基板的一侧的边缘处的微裂纹。可以有效的避免曲面液晶显示面板中阵列基板受到较大的弯曲应力而出现的微裂纹扩大的问题，从而可以降低阵列基板出现破裂现象的概率，进而可以提高集成了该曲面液晶显示面板的曲面显示装置的产品良率。
可选地，如图3所示，在阵列基板22的第三侧面(图中未示出)和第四侧面D4所在位置处，阵列基板22靠近彩膜基板21的一侧和远离彩膜基板21的一侧由研磨工艺形成的结构222可以为圆角222A。圆角222A可以指在两个相邻面之间制造出圆滑过渡的效果。即可以是用一段与角的两边相切的圆弧替换原来的角，圆角222A的大小可以用圆弧的半径表示。示例性的，该圆角222A的半径可以为0.15毫米～0.4毫米。需要说明的是，该圆角222A的半径也可以为其他数值，如0.6毫米，本申请实施例在此不做限制。
如此设置，阵列基板22的第三侧面(图中未示出)和第四侧面D4与阵列基板22的第一面L1和阵列基板22的第二面L2的连接处可以呈平滑圆润的状态。其中，阵列基板22的第一面L1可以指阵列基板22背离彩膜基板21的一侧的面，阵列基板22的第二面L2可以指阵列基板22朝向彩膜基板21的一侧的面。
通过研磨工艺修整阵列基板22的第三侧面(图中未示出)和第四侧面D4位置处，阵列基板22靠近彩膜基板21的一侧和远离彩膜基板21的一侧，可以去除阵列基板22靠近彩膜基板21的一侧的边缘和远离彩膜基板21的一侧的边 缘处的微裂纹。可以有效的避免在将曲面液晶显示面板20的阵列基板22受到较大的弯曲应力而出现的微裂纹扩大的问题，从而可以有效避免阵列基板22因受到弯曲应力而发生破裂现象。即该圆角222A还可以避免阵列基板22靠近彩膜基板21的一侧的边缘和远离彩膜基板21的一侧的边缘处的应力集中，可以提高阵列基板22的强度。同时，可以通过控制圆角222A上的圆弧的半径来控制阵列基板22的第二目标侧面221位置处被研磨工艺磨掉的体积大小。
或者，在一种可选的实施方式中，如图4所示，图4是本申请实施例提供的另一种曲面液晶显示面板的结构示意图。在阵列基板22的第三侧面(图中未示出)和第四侧面D4位置处，阵列基板22靠近彩膜基板21的一侧和远离彩膜基板21的一侧由研磨工艺形成的结构222可以为倒角222B。倒角222B可以指将阵列基板22在第二目标侧面221位置处棱角通过研磨工艺处理成斜面的结构。倒角222B可以去除阵列基板22靠近彩膜基板21的一侧的边缘和远离彩膜基板21的一侧的边缘处的微裂纹。可以有效的避免在将曲面液晶显示面板20的阵列基板20受到较大的弯曲应力而出现的微裂纹扩大的问题，从而可以有效避免阵列基板22因受到弯曲应力而发生破裂现象。该倒角222B的斜面与阵列基板22的第一面L1的夹角α可以为135度。需要说明的是，该夹角α也可以为另外的角度，如夹角α为140度，本申请实施例对此不做限制。
在一种可选的示例中，如图5所示，图5是本申请实施例提供的另一种曲面液晶显示面板的结构示意图。曲面液晶显示面板20可以具有显示区201以及位于显示区201外围的非显示区202。曲面液晶显示面板20还可以包括：位于曲面液晶显示面板20的非显示区202内，且围绕彩膜基板21和阵列基板22设置的侧涂胶23。侧涂胶23可以用于粘贴彩膜基板21和阵列基板22的周边。进一步的，侧涂胶23的材料可以包括黑色的遮光材料，该黑色的遮光材料可以用于避免彩膜基板21和阵列基板22的周边出现漏光现象。
可选地，如图5所示，彩膜基板21的第一侧面(图中未示出)和第二侧面D2以及阵列基板22的第三侧面(图中未示出)和第四侧面D4，均可以与侧涂胶23接触。且侧涂胶23可以覆盖阵列基板22的凸出区域223。阵列基板22的凸出区域223为阵列基板22靠近彩膜基板21的一侧中凸出于彩膜基板21的区域。
进一步的，侧涂胶23可以具有远离彩膜基板21和阵列基板22的第一目标侧面231。彩膜基板21的第二侧面D2与侧涂胶23的第一目标侧面231的最小 距离，可以大于阵列基板22的第四侧面D4与侧涂胶23的第一目标侧面231的最小距离。
侧涂胶23还可以具有与第一目标侧面231相对应的第二目标侧面(图中未示出)。彩膜基板21的第一侧面与侧涂胶23的第二目标侧面的最小距离，可以大于阵列基板22的第三侧面与侧涂胶23的第二目标侧面的最小距离。
如此，侧涂胶23可以对彩膜基板21和阵列基板22的周边起到支撑作用，可以避免阵列基板22的第四侧面D4与彩膜基板21的第二侧面D2之间，以及阵列基板22的第三侧面与彩膜基板21的第一侧面之间形成悬空结构。同时，侧涂胶23可以加强彩膜基板21和阵列基板22之间的连接程度。
可选地，侧涂胶23的材料可以为压敏胶(英文：Pressure Sensitive Adhesive；简写：PSA)。或者，侧涂胶23的材料可以为紫外(英文：Ultraviolet Rays；简写：UV)固化胶，紫外固化胶是一种通过紫外线光照射固化的胶粘剂，其可以作为粘接剂使用。由于紫外固化胶的材料中包括光引发剂(或光敏剂)，光引发剂在紫外线的照射下吸收紫外光后产生活性自由基或阳离子，引发单体聚合、交联化学反应，使粘合剂在数秒钟内由液态转化为固态。因此，在彩膜基板21和阵列基板22的周边涂覆液态的紫外固化胶以后，可以通过紫外线照射该液态的紫外固化胶，以使紫外固化胶凝固。
需要说明的是，本申请实施例中的侧涂胶23还可以包括其他材料的胶水，本申请实施例在此不做限制。
在一种可选的实施方式中，如图6所示，图6是本申请实施例提供的另一种曲面液晶显示面板的结构示意图。阵列基板22可以具有位于非显示区域内的多个绑定结构224。多个绑定结构224的排布方向平行于阵列基板22的第三侧面D3的延伸方向，且多个绑定结构224相对于阵列基板22的第四侧面靠近阵列基板22的第三侧面D3。该绑定结构224可以与阵列基板22上的多个薄膜晶体管电连接。
可选地，曲面液晶显示面板20还可以包括覆晶薄膜(英文：Chip On Film；简写：COF)以及印制电路板(英文：Printed circuit boards；简写：PCB)。绑定结构224可以通过覆晶薄膜以及印刷电路板与驱动芯片(英文：Integrated Circuit Chip；简写：IC)连接，以将驱动信号输入曲面液晶显示面板。该驱动信号通过阵列基板22上的薄膜晶体管控制液晶层30中的液晶分子发生偏转，从而使得曲面液晶显示面板进行画面显示。绑定结构224与覆晶薄膜之间可以 通过各向异性导电胶(英文：Anisotropic Conductive Film；简写：ACF)连接，以用于固定和导通。
可选地，如图6所示，彩膜基板21的第一侧面和阵列基板22的第三侧面D3之间的垂直距离m1的范围为2毫米至2.5毫米；彩膜基板21的第二侧面D2与阵列基板22的第四侧面之间的垂直距离m2的范围为0.3毫米至1毫米。在此范围内，一方面，阵列基板22在第三侧面D3和第四侧面D4处的微裂纹可以被研磨工艺中使用的研磨工具去除。另一方面，可以避免阵列基板22中的第三侧面D3和第四侧面D4被研磨工具研磨的过多。同时，使彩膜基板21相较于阵列基板22内缩0.3毫米至1毫米，可以避免对曲面液晶显示面板20的边框的宽度产生影响。
可选地，如图6所示，彩膜基板21还具有相对设置的第五侧面D5和第六侧面D6，第五侧面D5和第六侧面D6均可以为矩形侧面。且第五侧面D5和第六侧面D6均可以与彩膜基板21的第一侧面D1和第二侧面D2连接。
阵列基板22还具有相对设置的第七侧面D7和第八侧面D8，第七侧面D7和第八侧面D8均可以为矩形侧面。且第七侧面D7和第八侧面D8均可以与阵列基板22的第三侧面D3和第四侧面D4连接。
其中，彩膜基板21的第五侧面D5与阵列基板22的第七侧面D7共面，彩膜基板21的第六侧面D6与阵列基板22的第八侧面D8共面。。
在本申请实施例中，如图7所示，图7是图6所示的曲面液晶显示面板在B1-B2处的截面图。由于彩膜基板21的第五侧面D5和第六侧面D6以及阵列基板22的第七侧面D7和第八侧面D8可以保持平直的状态，即彩膜基板21的第五侧面D5和第六侧面D6以及阵列基板22的第七侧面D7和第八侧面D8可以不受弯曲应力的影响。因此，彩膜基板21和阵列基板22在第五侧面D5和第七侧面D7位置处可以平齐，彩膜基板21和阵列基板22在第六侧面D6和第八侧面D8位置处可以平齐。可以使得曲面液晶显示面板22的边框较窄。
在一种可选地实施方式中，曲面液晶显示面板还可以包括：位于阵列基板和彩膜基板之间的液晶层。
其中，阵列基板可以为薄膜晶体管阵列基板，该薄膜晶体管阵列基板可以包括衬底基板，以及位于衬底基板上的多个像素单元，每个像素单元可以包括相互连接的薄膜晶体管和像素电极。
彩膜基板可以包括透明基板以及位于透明基板上的黑矩阵和色阻层。色阻 层可以包括红、绿和蓝三种颜色的色阻单元。这三种颜色的色阻单元之间可以具有黑矩阵(黑矩阵可以是一种黑色不透光的物质)，可以避免彩膜基板漏光以及影响薄膜晶体管阵列基板上的薄膜晶体管的光电特性。
液晶层的材料可以为液晶。液晶是指能在一定的温度范围内兼有液体和晶体，二者特性的物质叫做液晶(英文：Liquid Crystal；简写：LC)。即液晶在熔融状态或被溶剂溶解之后，尽管失去固态物质的刚性，却获得了液体的易流动性，并保留着部分晶态物质分子的各向异性有序排列，形成一种兼有晶体和液体的部分性质的中间态。当温度升高时，随着温度的升高液晶会变成澄清、同性的液体。反之，液晶从液体转变成固体时，也要经过中间态。
曲面液晶显示面板可以通过在阵列基板和彩膜基板上施加驱动电压来控制液晶层的液晶分子的旋转方向，以将通过曲面液晶显示面板的光线折射出来产生画面。曲面液晶显示面板因其分辨率高、重量轻、低能耗和低辐射等优点被广泛应用于显示领域中。
可选地，曲面液晶显示面板还可以包括封框胶。如上所述，阵列基板和彩膜基板相对设置，液晶层设置于彩膜基板和阵列基板之间，封框胶可以位于液晶层的外围以连接阵列基板和彩膜基板，并且可以使得阵列基板和彩膜基板叠加形成密封的液晶盒。
需要说明的是，在其他可能的实现方式中，阵列基板相对于彩膜基板更靠近曲面液晶显示面板的显示面。
如图8所示，图8是本申请实施例提供的另一种曲面液晶显示面板的结构示意图。曲面液晶显示面板20还可以包括：第一偏光片24以及第二偏光片25。第一偏光片24以及第二偏光片25可以控制特定光束的偏振方向。第一偏光片24和第二偏光片25均可以包括聚乙烯醇(英文：polyvinyl alcohol；简写：PVA)膜、三醋酸纤维素(英文：cellulose tri-acetate；简写TAC)膜、保护膜和压敏胶等。
第一偏光片24位于彩膜基板21背离阵列基板22的一侧，第二偏光片25位于阵列基板22背离彩膜基板21的一侧。第一偏光片24以及第二偏光片25分别位于彩膜基板21和阵列基板22的两侧，第二偏光片25可以用于将曲面液晶显示面板20接收的光束转换为偏振光，第一偏光片24可以用于解析经过彩膜基板21和阵列基板22中的液晶层调制后的偏振光，产生明暗对比，从而产生显示画面。
综上所述，本申请实施例提供了一种曲面液晶显示面板，包括：彩膜基板以及阵列基板。通过将彩膜基板的两个弧形侧面分别与相邻的阵列基板的两个弧形侧面错开，使得在阵列基板的两个弧形侧面所在位置处，阵列基板靠近彩膜基板的一侧和远离彩膜基板的一侧可以进行充分研磨，以去除阵列基板靠近彩膜基板的一侧的边缘和远离彩膜基板的一侧的边缘处的微裂纹。可以有效的避免曲面液晶显示面板中阵列基板受到较大的弯曲应力而出现的微裂纹扩大的问题，从而可以降低阵列基板出现破裂现象的概率，进而可以提高集成了该曲面液晶显示面板的曲面显示装置的产品良率。
本申请实施例还提供了一种曲面显示装置，该曲面显示装置可以为：曲面电视、曲面显示器或曲面电脑等显示面为凹面显示面的产品或部件。如图9所示，图9是本申请实施例提供的一种曲面显示装置的结构示意图。该曲面显示装置30可以包括：曲面液晶显示面板20及背光模组(图中未示出)。其中，曲面液晶显示面板20可以为上述实施例中提供的曲面液晶显示面板20。
如图10所示，图10是图9所示的显示装置在C1-C2处的截面图。背光模组31的可以为直下式背光模组，该直下式背光模组的曲率可以与曲面液晶显示面板20的曲率相同，以使得曲面液晶显示面板20各个位置接收到的光照的强度较为均匀。
可选地，背光模组31也可以为侧入式背光模组，本申请实施例对此不做限制。
需要指出的是，在附图中，为了图示的清晰可能夸大了层和区域的尺寸。而且可以理解，当元件或层被称为在另一元件或层“上”时，它可以直接在其他元件上，或者可以存在中间的层。另外，可以理解，当元件或层被称为在另一元件或层“下”时，它可以直接在其他元件下，或者可以存在一个以上的中间的层或元件。另外，还可以理解，当层或元件被称为在两层或两个元件“之间”时，它可以为两层或两个元件之间唯一的层，或还可以存在一个以上的中间层或元件。通篇相似的参考标记指示相似的元件。
在本申请中，术语“第一”、“第二”、“第三”、“第四”、“第五”、“第六”、“第七”和“第八”仅用于描述目的，而不能理解为指示或暗示相对重要性。 术语“多个”指两个或两个以上，除非另有明确的限定。
以上所述仅为本申请的可选实施例，并不用以限制本申请，凡在本申请的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。

Claims (10)

  1. 一种曲面液晶显示面板，其特征在于，所述曲面液晶显示面板包括：相对设置的彩膜基板和阵列基板，所述彩膜基板背离所述阵列基板的一面为所述曲面液晶显示面板的显示面，且所述显示面为凹面显示面；
    其中，所述彩膜基板在所述阵列基板上的正投影位于所述阵列基板内；
    所述彩膜基板具有相对设置的第一侧面和第二侧面，所述第一侧面和所述第二侧面均为弧形侧面；
    所述阵列基板具有相对设置的第三侧面和第四侧面，所述第三侧面与所述第四侧面均为弧形侧面；
    所述第一侧面与所述第三侧面相邻，且与所述第三侧面错开，所述第二侧面与所述第四侧面相邻，且与所述第四侧面错开；
    在所述第三侧面和所述第四侧面所在位置处，所述阵列基板靠近所述彩膜基板的一侧和远离所述彩膜基板的一侧均具有由研磨工艺形成的结构。
  2. 根据权利要求1所述的曲面液晶显示面板，其特征在于，所述由研磨工艺形成的结构为圆角或者倒角。
  3. 根据权利要求1所述的曲面液晶显示面板，其特征在于，所述曲面液晶显示面板具有显示区以及位于所述显示区外围的非显示区，所述曲面液晶显示面板还包括：位于所述非显示区内，且围绕所述彩膜基板和所述阵列基板设置的侧涂胶。
  4. 根据权利要求3所述的曲面液晶显示面板，其特征在于，所述第一侧面、所述第二侧面、所述第三侧面和所述第四侧面均与所述侧涂胶接触，且所述侧涂胶覆盖所述阵列基板的凸出区域，所述凸出区域为所述阵列基板靠近所述彩膜基板的一侧中凸出于所述彩膜基板的区域。
  5. 根据权利要求3所述的曲面液晶显示面板，其特征在于，所述阵列基板具有位于所述非显示区域内的多个绑定结构，所述多个绑定结构的排布方向平行于所述第三侧面的延伸方向，且所述多个绑定结构相对于所述第四侧面靠近所 述第三侧面。
  6. 根据权利要求5所述的曲面液晶显示面板，其特征在于，所述第一侧面和所述第三侧面之间的垂直距离的范围为2毫米至2.5毫米；
    所述第二侧面与所述第四侧面之间的垂直距离的范围为0.3毫米至1毫米。
  7. 根据权利要求1至6任一所述的曲面液晶显示面板，其特征在于，所述彩膜基板还具有相对设置的第五侧面和第六侧面，所述第五侧面和所述第六侧面均为矩形侧面；
    所述阵列基板还具有相对设置的第七侧面和第八侧面，所述第七侧面和所述第八侧面均为矩形侧面；
    其中，所述第五侧面与所述第七侧面共面，所述第六侧面与所述第八侧面共面。
  8. 根据权利要求7所述的曲面液晶显示面板，其特征在于，所述曲面液晶显示面板还包括：位于所述阵列基板和所述彩膜基板之间的液晶层。
  9. 根据权利要求8所述的曲面液晶显示面板，其特征在于，所述曲面液晶显示面板还包括：第一偏光片以及第二偏光片；
    所述第一偏光片位于所述彩膜基板背离所述阵列基板的一侧，所述第二偏光片位于所述阵列基板背离所述彩膜基板的一侧。
  10. 一种曲面显示装置，其特征在于，包括：权利要求1至9中任一项所述的曲面液晶显示面板及背光模组。
PCT/CN2022/113811 2021-08-27 2022-08-22 曲面液晶显示面板和曲面显示装置 WO2023025072A1 (zh)

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