WO2020252965A1 - 一种液晶显示面板 - Google Patents

一种液晶显示面板 Download PDF

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Publication number
WO2020252965A1
WO2020252965A1 PCT/CN2019/107394 CN2019107394W WO2020252965A1 WO 2020252965 A1 WO2020252965 A1 WO 2020252965A1 CN 2019107394 W CN2019107394 W CN 2019107394W WO 2020252965 A1 WO2020252965 A1 WO 2020252965A1
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WIPO (PCT)
Prior art keywords
hole
light
liquid crystal
display panel
crystal display
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Ceased
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PCT/CN2019/107394
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English (en)
French (fr)
Inventor
余朋飞
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Wuhan China Star Optoelectronics Technology Co Ltd
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Wuhan China Star Optoelectronics Technology Co Ltd
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Application filed by Wuhan China Star Optoelectronics Technology Co Ltd filed Critical Wuhan China Star Optoelectronics Technology Co Ltd
Priority to US16/615,862 priority Critical patent/US11774795B2/en
Publication of WO2020252965A1 publication Critical patent/WO2020252965A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133528—Polarisers
    • G02F1/133531—Polarisers characterised by the arrangement of polariser or analyser axes
    • 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
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133509—Filters, e.g. light shielding masks
    • G02F1/133512—Light shielding layers, e.g. black matrix

Definitions

  • the present invention relates to the field of display technology, in particular to a liquid crystal display panel.
  • the LCD display panel includes a display screen body, an upper polarizer on the upper side of the display body, a lower polarizer on the lower side of the display body, and a backlight plate.
  • the display body includes a color film substrate and an array substrate that are arranged oppositely.
  • the existing in-plane opening technology is divided into through hole and blind hole; blind hole means to reserve a round hole space when the color filter substrate and array substrate are coated, and then the film layer located at the position of the round hole is dug.
  • the color film substrate and the array substrate are assembled, liquid crystal is added to the circular hole space to form a circular light-transmitting area on the LCD display panel, and then the backlight plate with the circular hole is aligned and assembled with the display body.
  • a second coating of light-shielding glue is applied to the circular hole; the first coating is to fill the edge gap formed by the hole of the lower polarizer at the edge of the circular hole; the second time Glue, apply light-shielding glue to the area between the through hole on the backlight board and the round hole on the display body to ensure that the light source does not leak to the round hole area, which will affect the display effect of the product and the camera function of the camera.
  • this secondary coating method uses the coated light-shielding glue as the outer edge of the circular hole. Due to the impact of coating accuracy, it will cause problems such as lack of glue and overflow in the light-shielding glue coating, resulting in round holes. , Round holes, missing corners or bumps.
  • a liquid crystal display panel comprising a display screen body, an upper polarizer, a lower polarizer, and a backlight plate on the back side of the lower polarizer;
  • the display body has a light-transmitting hole;
  • the backlight plate includes a A light-shielding plate connected to the display screen body, the light-shielding plate is provided with a first through hole coaxial with the light transmission hole, and the aperture of the first through hole is larger than the aperture of the light transmission hole;
  • the display screen body is provided with a ring-shaped light-shielding member located in the first through hole, and the ring-shaped light-shielding member is provided with a second through hole coaxial with the light transmission hole, and the second The aperture of the through hole is greater than or equal to the aperture of the light-transmitting hole; the ring-shaped shading member is in contact with the side wall of the first through hole; the ring-shaped shading member is formed by a light-shielding tape.
  • the lower polarizer is provided with a third through hole coaxial with the light transmission hole, and the aperture of the third through hole is larger than the aperture of the first through hole.
  • the display screen body is provided with a light-shielding glue layer located between the sidewall of the third through hole and the annular light-shielding member.
  • an adhesive layer is provided between the shading plate and the shading adhesive layer, and the shading plate is connected to the shading adhesive layer through the adhesive layer.
  • the adhesive layer is a black light blocking layer.
  • the distance between the side of the shading plate close to the display screen body and the display screen body is less than the thickness of the annular shading member.
  • the cross-section of the ring-shaped shading member is in an annular shape as a whole.
  • the upper polarizer is provided with a fourth through hole coaxial with the light transmission hole, and the aperture of the fourth through hole is greater than or equal to the aperture of the light transmission hole.
  • a liquid crystal display panel comprising a display screen body, an upper polarizer, a lower polarizer, and a backlight plate on the back side of the lower polarizer;
  • the display body has a light-transmitting hole;
  • the backlight plate includes a A light-shielding plate connected to the display screen body, the light-shielding plate is provided with a first through hole coaxial with the light transmission hole, and the aperture of the first through hole is larger than the aperture of the light transmission hole;
  • the display screen body is provided with a ring-shaped light-shielding member located in the first through hole, and the ring-shaped light-shielding member is provided with a second through hole coaxial with the light transmission hole, and the second The aperture of the through hole is greater than or equal to the aperture of the light-transmitting hole.
  • the ring-shaped shading member is formed of shading tape.
  • the lower polarizer is provided with a third through hole coaxial with the light transmission hole, and the aperture of the third through hole is larger than the aperture of the first through hole.
  • the display screen body is provided with a light-shielding glue layer located between the sidewall of the third through hole and the annular light-shielding member.
  • an adhesive layer is provided between the shading plate and the shading adhesive layer, and the shading plate is connected to the shading adhesive layer through the adhesive layer.
  • the adhesive layer is a black light blocking layer.
  • the distance between the side of the shading plate close to the display screen body and the display screen body is less than the thickness of the annular shading member.
  • annular light shielding member is in contact with the side wall of the first through hole.
  • the cross-section of the ring-shaped shading member is in an annular shape as a whole.
  • the upper polarizer is provided with a fourth through hole coaxial with the light transmission hole, and the aperture of the fourth through hole is greater than or equal to the aperture of the light transmission hole.
  • FIG. 1 is a schematic diagram of the structure of a liquid crystal display panel in a specific embodiment of the present invention.
  • FIG. 2 is a schematic diagram of the shape of the light-transmitting hole in the specific embodiment of the present invention.
  • Fig. 3 is a schematic diagram of a cross section of a ring-shaped shading member in a specific embodiment of the present invention.
  • the present invention aims at the prior art liquid crystal display panel, due to the influence of the glue application precision, the coating of the light-shielding glue will lack glue and overflow glue, thereby causing technical problems such as round holes, missing corners or convex points.
  • the present invention can solve the above technical problems.
  • the liquid crystal display panel includes a display screen body 10, an upper polarizer 20, a lower polarizer 30 and a backlight plate 60 on the back side of the lower polarizer 30.
  • the upper polarizer 20 is arranged on the display side of the display screen body 10
  • the lower polarizer 30 is arranged on the back side of the display screen body 10
  • the upper polarizer 20 is provided with a cover 50
  • the cover plate 50 is bonded and fixed to the upper polarizer 20 through an adhesive protective layer 40.
  • the display screen body 10 has a light-transmitting hole 11
  • the backlight plate 60 includes a light-shielding plate 61 connected to the display body 10, and the light-shielding plate 61 is provided with a light-transmitting hole 11
  • the first through hole 611 is concentric, and the aperture of the first through hole 611 is larger than the aperture of the light-transmitting hole 11.
  • the display screen body 10 is provided with an annular light shielding member 70 located in the first through hole 611, and the annular light shielding member 70 is provided with a second through hole coaxial with the light transmission hole 11 71.
  • the aperture of the second through hole 71 is greater than or equal to the aperture of the light-transmitting hole 11.
  • the formed ring-shaped shading member 70 is used to replace the secondary coating of shading glue.
  • the process is simple and prevents the lack of glue in the shading glue coating caused by the glue coating accuracy.
  • the problem of glue so as to avoid problems such as non-circular holes of the light-transmitting hole 11 and missing corners or bumps on the edge of the light-transmitting hole 11.
  • the lower polarizer 30 is provided with a third through hole 31 coaxial with the light transmission hole 11, and the aperture of the third through hole 31 is larger than the aperture of the first through hole 611.
  • the display screen body 10 is provided with a light-shielding glue layer 80 between the side wall of the third through hole 31 and the annular light-shielding member 70.
  • a light-shielding glue layer 80 is coated in the third through hole 31, and the light-shielding glue layer 80 is used to fill the third through hole 31 and
  • the area between the light-transmitting holes 11 prevents the light emitted by the light source from leaking from the gap between the lower polarizing plate 30 and the display screen body 10 to the lighting area of the camera.
  • an adhesive layer 90 is provided between the shading plate 61 and the shading adhesive layer 80, and the shading plate 61 is connected to the shading adhesive layer 80 through the adhesive layer 90.
  • the adhesive layer 90 is a black light blocking layer.
  • the light-shielding plate 61 and the light-shielding adhesive layer 80 are bonded and fixed by the adhesive layer 90, thereby connecting the light-shielding plate 61 and the display screen body 10.
  • the end surface of the light-shielding plate 61 and the display screen body 10 are connected by the adhesive layer 90. The gap between is blocked to prevent light from leaking into the lighting area of the camera.
  • the preparation material of the adhesive layer 90 is double-sided tape.
  • the preparation material of the adhesive layer 90 can also be other materials with strong viscous and light-shielding properties, such as black viscous glue.
  • the distance between the side of the shading plate 61 close to the display screen body 10 and the display screen body 10 is smaller than the thickness of the annular shading member 70.
  • the annular light shielding member 70 and the adhesive layer 90 are used to simultaneously shield the gap between the end surface of the light shielding plate 61 and the display screen body 10, thereby achieving a better light shielding effect.
  • the upper polarizer 20 is provided with a fourth through hole 21 coaxial with the light transmission hole 11, and the aperture of the fourth through hole 21 is greater than or equal to the aperture of the light transmission hole 11.
  • the light-transmitting hole 11 is a round hole.
  • the light-transmitting holes 11 may also be elliptical holes, square holes, triangular holes or other shapes.
  • the light-transmitting hole 11 may be arranged at any position of the display screen body 10.
  • the cross-section of the ring-shaped shading member 70 is an annular shape as a whole, so as to better block light.
  • the diameter of the outer ring of the ring-shaped shading member 70 is the same as the diameter of the first through hole 611.
  • the cross section of the annular light shielding member 70 may also be an elliptical ring, a rectangular ring or other shapes.
  • the ring-shaped shading member 70 is formed of shading tape. After forming the annular shading member 70 with shading tape, the annular shading member 70 is attached and installed on the display screen body 10.
  • the manufacturing and shaping are simple, and it is convenient to connect the annular shading member 70 and the display screen body 10.
  • the ring-shaped shading member 70 may also be formed of other materials that are simple to shape and have shading properties, such as black plastic, metal, wood, etc., which are not listed here.
  • the beneficial effect of the present invention is: after the lower polarizer 30 and the display screen body 10 are aligned and bonded, a light-shielding glue layer 80 is coated in the third through hole 31, and the light-shielding glue layer 80 is used to fill the third through hole 31 and the transparent In the gap area between the light holes 11, the backlight plate 60 is bonded to the display body 10 with the adhesive layer 90.
  • the first through hole 611 is used to align with the light hole 11 to ensure the installation Accuracy:
  • the excess light-shielding glue layer 80 is removed, the ring-shaped light-shielding member 70 is installed in the first through hole 611, and the second through hole 71 on the ring-shaped light-shielding member 70 is aligned with the light-transmitting hole 11 ,
  • the ring-shaped shading member 70 is used to replace the secondary coating of the light-shielding glue process to prevent While the light leaks to the lighting area of the camera, it prevents the problem of lack of glue and overflow in the light-shielding glue coating caused by the precision of glue application, so as to avoid the occurrence of out-of-round holes 11 and missing corners or bumps

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mathematical Physics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Inorganic Chemistry (AREA)
  • Liquid Crystal (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

一种液晶显示面板，其包括显示屏体（10）、下偏光片（30）以及背光板（60）；显示屏体（10）上具有透光孔（11），背光板（60）包括与显示屏体（10）连接的遮光板（61），遮光板（61）上设置有与透光孔（11）同轴心的第一通孔（611）；其中，显示屏体（10）上设置有位于第一通孔（611）内的环形遮光件（70），环形遮光件（70）上设有与透光孔（11）同轴心的第二通孔（71），第二通孔（71）的孔径大于或等于透光孔（11）的孔径。

Description

一种液晶显示面板 技术领域
本发明涉及显示技术领域，尤其涉及一种液晶显示面板。
 背景技术
目前，LCD显示面板包括显示屏体、位于显示屏体上侧的上偏光片、位于显示屏体下侧的下偏光片以及背光板，显示屏体包括相对设置的彩膜基板和阵列基板。全面屏LCD显示面板中，为了安装听筒和摄像头等电子元件，需要在面内进行开孔。现有的面内开孔技术分为通孔及盲孔；盲孔是指在彩膜基板及阵列基板镀膜时预留一个圆孔空间，然后对位于圆孔位置的膜层进行挖孔处理，彩膜基板与阵列基板组装时，对该圆孔空间滴加液晶，在LCD显示面板上形成一个圆形透光区，然后将带有圆孔的背光板与显示屏体对位组装。
目前业内在背光板与显示屏体进行组装时，会对圆孔处进行二次涂覆遮光胶；第一次涂胶，填充圆孔边缘处下偏光片挖孔形成的边缘空隙；第二次涂胶，对背光板上的通孔与显示屏体上的圆孔之间的区域涂遮光胶，确保光源不外泄至圆孔区域对产品显示效果及摄像头摄像功能产生影响。
然而，这种二次涂胶方式，以涂覆的遮光胶为圆孔外边缘，因涂覆精度的影响，会造成遮光胶涂覆出现缺胶溢胶等问题，从而导致圆孔孔不圆、圆孔缺角或凸点等问题。
 技术问题
因涂胶精度的影响，会造成遮光胶涂覆出现缺胶溢胶，从而导致圆孔孔不圆、圆孔缺角或凸点等技术问题。
 技术解决方案
一种液晶显示面板，其包括显示屏体、上偏光片、下偏光片以及位于所述下偏光片背侧的背光板；所述显示屏体上具有透光孔；所述背光板包括与所述显示屏体连接的遮光板，所述遮光板上设置有与所述透光孔同轴心的第一通孔，所述第一通孔的孔径大于所述透光孔的孔径；
其中，所述显示屏体上设置有位于所述第一通孔内的环形遮光件，所述环形遮光件上设有与所述透光孔同轴心的第二通孔，所述第二通孔的孔径大于或等于所述透光孔的孔径；所述环形遮光件与所述第一通孔的侧壁触接；所述环形遮光件由遮光胶带形成。
进一步的，所述下偏光片上设有与所述透光孔同轴心的第三通孔，所述第三通孔的孔径大于所述第一通孔的孔径。
进一步的，所述显示屏体上设置有位于所述第三通孔的侧壁与所述环形遮光件之间的遮光胶层。
进一步的，所述遮光板与所述遮光胶层之间设置有粘结层，所述遮光板通过所述粘结层与所述遮光胶层连接。
进一步的，所述粘结层为黑色挡光层。
进一步的，所述遮光板靠近所述显示屏体的一侧与所述显示屏体的距离小于所述环形遮光件的厚度。
进一步的，所述环形遮光件的横截面整体呈圆环状。
进一步的，所述上偏光片上设置有与所述透光孔同轴心的第四通孔，所述第四通孔的孔径大于或等于所述透光孔的孔径。
一种液晶显示面板，其包括显示屏体、上偏光片、下偏光片以及位于所述下偏光片背侧的背光板；所述显示屏体上具有透光孔；所述背光板包括与所述显示屏体连接的遮光板，所述遮光板上设置有与所述透光孔同轴心的第一通孔，所述第一通孔的孔径大于所述透光孔的孔径；
其中，所述显示屏体上设置有位于所述第一通孔内的环形遮光件，所述环形遮光件上设有与所述透光孔同轴心的第二通孔，所述第二通孔的孔径大于或等于所述透光孔的孔径。
进一步的，所述环形遮光件由遮光胶带形成。
进一步的，所述下偏光片上设有与所述透光孔同轴心的第三通孔，所述第三通孔的孔径大于所述第一通孔的孔径。
进一步的，所述显示屏体上设置有位于所述第三通孔的侧壁与所述环形遮光件之间的遮光胶层。
进一步的，所述遮光板与所述遮光胶层之间设置有粘结层，所述遮光板通过所述粘结层与所述遮光胶层连接。
进一步的，所述粘结层为黑色挡光层。
进一步的，所述遮光板靠近所述显示屏体的一侧与所述显示屏体的距离小于所述环形遮光件的厚度。
进一步的，所述环形遮光件与所述第一通孔的侧壁触接。
进一步的，所述环形遮光件的横截面整体呈圆环状。
进一步的，所述上偏光片上设置有与所述透光孔同轴心的第四通孔，所述第四通孔的孔径大于或等于所述透光孔的孔径。
 有益效果
利用遮光胶带形成成型的环形遮光件，利用环形遮光件上的第二通孔与透光孔对位贴附，保证环形遮光件的安装精度，从而在保证透光孔尺寸不变的前提下，不影响透光孔的采光区大小，利用环形遮光件代替二次涂覆遮光胶工艺，防止光线漏到摄像头采光区的同时，防止因涂胶精度导致的遮光胶涂覆缺胶溢胶的问题，从而避免出现透光孔孔不圆以及透光孔边缘线缺角或凸点等问题。
 附图说明
为了更清楚地说明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单介绍，显而易见地，下面描述中的附图仅仅是发明的一些实施例，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为本发明具体实施方式中液晶显示面板的结构示意图；
图2为本发明具体实施方式中透光孔的形状示意图；
图3为本发明具体实施方式中环形遮光件的横截面的示意图。
附图标记：
10、显示屏体；11、透光孔；20、上偏光片；21、第四通孔；30、下偏光片；31、第三通孔；40、黏胶保护层；50、盖板；60、背光板；61、遮光板；611、第一通孔；70、环形遮光件；71、第二通孔；80、遮光胶层；90、粘结层。
 本发明的实施方式
以下各实施例的说明是参考附加的图示，用以例示本发明可用以实施的特定实施例。本发明所提到的方向用语，例如[上]、[下]、[前]、[后]、[左]、[右]、[内]、[外]、[侧面]等，仅是参考附加图式的方向。因此，使用的方向用语是用以说明及理解本发明，而非用以限制本发明。在图中，结构相似的单元是用以相同标号表示。
本发明针对现有的液晶显示面板中，因涂胶精度的影响，会造成遮光胶涂覆出现缺胶溢胶，从而导致圆孔孔不圆、圆孔缺角或凸点等技术问题。本发明可以解决上述技术问题。
一种液晶显示面板，如图1所示，所述液晶显示面板包括显示屏体10、上偏光片20、下偏光片30以及位于所述下偏光片30背侧的背光板60。
其中，所述上偏光片20设置于所述显示屏体10的显示侧，所述下偏光片30设置于所述显示屏体10的背侧，所述上偏光片20上设置有盖板50，所述盖板50通过一黏胶保护层40粘结固定于所述上偏光片20上。
具体的，所述显示屏体10上具有透光孔11，所述背光板60包括与所述显示屏体10连接的遮光板61，所述遮光板61上设置有与所述透光孔11同轴心的第一通孔611，所述第一通孔611的孔径大于所述透光孔11的孔径。
其中，所述显示屏体10上设置有位于所述第一通孔611内的环形遮光件70，所述环形遮光件70上设有与所述透光孔11同轴心的第二通孔71，所述第二通孔71的孔径大于或等于所述透光孔11的孔径。
将摄像头等光学元件安装在显示屏体10的背侧且与透光孔11的位置相对应，利用遮光板61和环形遮光件70防止光线漏到摄像头采光区，在保证透光孔11尺寸不变的前提下，不影响透光孔11的采光区大小，同时利用成型的环形遮光件70代替二次涂覆遮光胶工艺，工艺简单，防止因涂胶精度导致的遮光胶涂覆缺胶溢胶的问题，从而避免出现透光孔11孔不圆以及透光孔11边缘线缺角或凸点等问题。
具体的，所述下偏光片30上设有与所述透光孔11同轴心的第三通孔31，所述第三通孔31的孔径大于所述第一通孔611的孔径。
进一步的，所述显示屏体10上设置有位于所述第三通孔31的侧壁与所述环形遮光件70之间的遮光胶层80。
液晶显示面板的制备过程中，将下偏光片30与显示屏体10对位贴合后，在第三通孔31内涂覆遮光胶层80，利用遮光胶层80填充第三通孔31与透光孔11之间的区域，从而防止光源发出的光线从下偏光板30与显示屏体10之间的间隙漏到摄像头采光区。
具体的，所述遮光板61与所述遮光胶层80之间设置有粘结层90，所述遮光板61通过所述粘结层90与所述遮光胶层80连接。
进一步的，所述粘结层90为黑色挡光层。利用粘结层90将所述遮光板61与所述遮光胶层80粘结固定，从而连接遮光板61与显示屏体10，同时利用粘结层90对遮光板61的端面与显示屏体10之间的间隙进行遮挡，防止光线漏到摄像头采光区。
在一实施方式中，所述粘结层90的制备材料为双面胶。
需要说明的是，实际实施中，所述粘结层90的制备材料还可以为其他粘性和遮光性能较强的材料，如黑色的粘性胶水等。
具体的，所述遮光板61靠近所述显示屏体10的一侧与所述显示屏体10的距离小于所述环形遮光件70的厚度。
利用环形遮光件70与粘结层90同时对遮光板61的端面与显示屏体10之间的间隙进行遮挡，从而起到更好的挡光作用。
具体的，所述上偏光片20上设置有与所述透光孔11同轴心的第四通孔21，所述第四通孔21的孔径大于或等于所述透光孔11的孔径。
如图2所示，在一实施方式中，所述透光孔11为圆孔。
需要说明的是，实际实施中，透光孔11也可以为椭圆孔、方孔、三角孔或其他形状。
需要说明的是，实际实施中，所述透光孔11可以设置在所述显示屏体10的任意位置处。
如图3所示，在一实施方式中，所述环形遮光件70的横截面整体呈圆环状，从而起到更好的挡光作用。
在一实施方式中，所述环形遮光件70的外环的直径大小与所述第一通孔611的直径大小相同。
需要说明的是，实际实施中，所述环形遮光件70的横截面还可以为椭圆环、矩形环或其他形状。
在一实施方式中，所述环形遮光件70由遮光胶带形成。利用遮光胶带形成环形遮光件70后，再将环形遮光件70贴附安装于显示屏体10上，制造成形简单，便于将环形遮光件70与显示屏体10进行连接。
需要说明的是，实际实施中，环形遮光件70也可以由其他塑形简单且具有遮光性能的材料形成，如黑色塑料、金属、木材等，在此不一一列举。
本发明的有益效果为：将下偏光片30与显示屏体10对位贴合后，在第三通孔31内涂覆遮光胶层80，利用遮光胶层80填充第三通孔31与透光孔11之间的间隙区域，将背光板60利用粘结层90与显示屏体10粘结，安装背光板60时，利用第一通孔611与透光孔11进行对位，从而保证安装精度；背光板60安装后，对多余的遮光胶层80进行清除，在第一通孔611内安装环形遮光件70，利用环形遮光件70上的第二通孔71与透光孔11对位，保证环形遮光件70的安装精度，从而在保证透光孔11尺寸不变的前提下，不影响透光孔11的采光区大小，利用环形遮光件70代替二次涂覆遮光胶工艺，防止光线漏到摄像头采光区的同时，防止因涂胶精度导致的遮光胶涂覆缺胶溢胶的问题，从而避免出现透光孔11孔不圆以及透光孔11边缘线缺角或凸点等问题。
综上所述，虽然本发明已以优选实施例揭露如上，但上述优选实施例并非用以限制本发明，本领域的普通技术人员，在不脱离本发明的精神和范围内，均可作各种更动与润饰，因此本发明的保护范围以权利要求界定的范围为准。

Claims (18)

  1. 一种液晶显示面板，其中，所述液晶显示面板包括显示屏体、上偏光片、下偏光片以及位于所述下偏光片背侧的背光板；所述显示屏体上具有透光孔；所述背光板包括与所述显示屏体连接的遮光板，所述遮光板上设置有与所述透光孔同轴心的第一通孔，所述第一通孔的孔径大于所述透光孔的孔径；
    其中，所述显示屏体上设置有位于所述第一通孔内的环形遮光件，所述环形遮光件上设有与所述透光孔同轴心的第二通孔，所述第二通孔的孔径大于或等于所述透光孔的孔径；所述环形遮光件与所述第一通孔的侧壁触接；所述环形遮光件由遮光胶带形成。
  2. 根据权利要求1所述的液晶显示面板，其中，所述下偏光片上设有与所述透光孔同轴心的第三通孔，所述第三通孔的孔径大于所述第一通孔的孔径。
  3. 根据权利要求2所述的液晶显示面板，其中，所述显示屏体上设置有位于所述第三通孔的侧壁与所述环形遮光件之间的遮光胶层。
  4. 根据权利要求3所述的液晶显示面板，其中，所述遮光板与所述遮光胶层之间设置有粘结层，所述遮光板通过所述粘结层与所述遮光胶层连接。
  5. 根据权利要求4所述的液晶显示面板，其中，所述粘结层为黑色挡光层。
  6. 根据权利要求4所述的液晶显示面板，其中，所述遮光板靠近所述显示屏体的一侧与所述显示屏体的距离小于所述环形遮光件的厚度。
  7. 根据权利要求1所述的液晶显示面板，其中，所述环形遮光件的横截面整体呈圆环状。
  8. 根据权利要求1所述的液晶显示面板，其中，所述上偏光片上设置有与所述透光孔同轴心的第四通孔，所述第四通孔的孔径大于或等于所述透光孔的孔径。
  9. 一种液晶显示面板，其中，所述液晶显示面板包括显示屏体、上偏光片、下偏光片以及位于所述下偏光片背侧的背光板；所述显示屏体上具有透光孔；所述背光板包括与所述显示屏体连接的遮光板，所述遮光板上设置有与所述透光孔同轴心的第一通孔，所述第一通孔的孔径大于所述透光孔的孔径；
    其中，所述显示屏体上设置有位于所述第一通孔内的环形遮光件，所述环形遮光件上设有与所述透光孔同轴心的第二通孔，所述第二通孔的孔径大于或等于所述透光孔的孔径。
  10. 根据权利要求9所述的液晶显示面板，其中，所述环形遮光件由遮光胶带形成。
  11. 根据权利要求9所述的液晶显示面板，其中，所述下偏光片上设有与所述透光孔同轴心的第三通孔，所述第三通孔的孔径大于所述第一通孔的孔径。
  12. 根据权利要求11所述的液晶显示面板，其中，所述显示屏体上设置有位于所述第三通孔的侧壁与所述环形遮光件之间的遮光胶层。
  13. 根据权利要求12所述的液晶显示面板，其中，所述遮光板与所述遮光胶层之间设置有粘结层，所述遮光板通过所述粘结层与所述遮光胶层连接。
  14. 根据权利要求13所述的液晶显示面板，其中，所述粘结层为黑色挡光层。
  15. 根据权利要求13所述的液晶显示面板，其中，所述遮光板靠近所述显示屏体的一侧与所述显示屏体的距离小于所述环形遮光件的厚度。
  16. 根据权利要求9所述的液晶显示面板，其中，所述环形遮光件与所述第一通孔的侧壁触接。
  17. 根据权利要求16所述的液晶显示面板，其中，所述环形遮光件的横截面整体呈圆环状。
  18. 根据权利要求9所述的液晶显示面板，其中，所述上偏光片上设置有与所述透光孔同轴心的第四通孔，所述第四通孔的孔径大于或等于所述透光孔的孔径。
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