WO2014056238A1 - 一种液晶显示装置及其背光模组 - Google Patents

一种液晶显示装置及其背光模组 Download PDF

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Publication number
WO2014056238A1
WO2014056238A1 PCT/CN2012/082975 CN2012082975W WO2014056238A1 WO 2014056238 A1 WO2014056238 A1 WO 2014056238A1 CN 2012082975 W CN2012082975 W CN 2012082975W WO 2014056238 A1 WO2014056238 A1 WO 2014056238A1
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WIPO (PCT)
Prior art keywords
optical film
strength
ear
backlight module
ear portion
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PCT/CN2012/082975
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English (en)
French (fr)
Inventor
俞刚
Original Assignee
深圳市华星光电技术有限公司
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Priority to US13/642,987 priority Critical patent/US20140104534A1/en
Publication of WO2014056238A1 publication Critical patent/WO2014056238A1/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
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133608—Direct backlight including particular frames or supporting means
    • 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
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
    • 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
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/46—Fixing elements

Definitions

  • the present invention relates to the field of liquid crystal display technology, and in particular, to a liquid crystal display device and a backlight module thereof.
  • FIG. 1 is a perspective view of a backlight module 10 assembled in the prior art
  • FIG. 2 is an enlarged view of a portion A of the optical film 12 of FIG.
  • a method for positioning an optical film is: providing a positioning hole 120 at an edge of the optical film 12, and providing a bending block 13 at a position of the corresponding positioning hole 120 on the back plate 11, on the bending block 13
  • the locating hole 120 is inserted to fix the optical film 12, that is, the positioning of the optical film 12 is achieved by the cooperation of the positioning hole 120 and the bending block 13.
  • the inventors of the present invention found that in the design of the narrow bezel module, the hanging portion 121 of the optical film 12 (the portion outside the positioning hole) is smaller and smaller in size, and the strength cannot be ensured, thereby affecting the optical. The reliability of the positioning of the diaphragm 12.
  • the present invention provides a liquid crystal display device and a backlight module thereof, which can improve the reliability of positioning of the optical film and is suitable for the design of a narrow bezel.
  • a technical solution adopted by the present invention is to provide a backlight module, including: a back plate, an optical film, and a positioning member; at least one positioning member is convexly disposed on a top surface of the edge of the back plate, and optically At least one ear portion is disposed at an edge of the diaphragm, the ear portion is provided with a positioning hole, and the positioning hole is sleeved on the positioning member; the backlight module comprises a reinforcing ring body shaped to fit the ear portion, and the reinforcing ring body is fixed to the ear The top or bottom surface of the portion is such that the strength of the portion of the ear away from the center of the optical film is greater than the strength of the remaining portion; the reinforcing ring body is fixed to the top or bottom surface of the ear by double-sided tape.
  • the material of the reinforcing ring body is polyethylene terephthalate.
  • the ear is adhered and fixed to the edge of the optical film, and its strength is greater than the strength of the optical film.
  • the material of the ear is polyethylene terephthalate.
  • a backlight module including: a back plate, an optical film, and a positioning member; at least one positioning member is convexly disposed on a top surface of the edge of the back plate. At least one ear portion is disposed at an edge of the optical film, and the ear portion is provided with a positioning hole, and the positioning hole is sleeved on the positioning member; wherein at least the portion of the ear portion away from the center of the optical film is stronger than the strength of the remaining portion.
  • the backlight module includes a reinforcing ring body shaped to fit the ear portion, and the reinforcing ring body is fixed to the top surface or the bottom surface of the ear portion, and the strength thereof is greater than the strength of the optical film.
  • the material of the reinforcing ring body is polyethylene terephthalate.
  • the ear is adhered and fixed to the edge of the optical film, and its strength is greater than the strength of the optical film.
  • the material of the ear is polyethylene terephthalate.
  • a liquid crystal display device including: a display panel; and a backlight module disposed under the display panel, including: a back plate, an optical film, and a positioning member At least one positioning member is disposed on the top surface of the edge of the back plate, and at least one ear portion is disposed at an edge of the optical film, the positioning portion is provided on the positioning portion, and the positioning hole is sleeved on the positioning member; wherein at least the ear portion is The strength of the portion away from the center of the optical film is greater than the strength of the remaining portion.
  • the backlight module includes a reinforcing ring body shaped to fit the ear portion, and the reinforcing ring body is fixed to the top surface or the bottom surface of the ear portion, and the strength thereof is greater than the strength of the optical film.
  • the material of the reinforcing ring body is polyethylene terephthalate.
  • the ear is adhered and fixed to the edge of the optical film, and its strength is greater than the strength of the optical film.
  • the material of the ear is polyethylene terephthalate.
  • the beneficial effects of the present invention are: different from the prior art, the embodiment of the present invention enhances the strength of the ear after the reinforcing design by reinforcing the ear of the optical film, thereby improving the optical film.
  • the reliability of the film positioning is suitable for the design of narrow borders.
  • FIG. 1 is a perspective view of a backlight module assembled in the prior art
  • Figure 2 is an enlarged view of a portion A of the optical film of Figure 1;
  • FIG. 3 is a perspective view showing the assembled first embodiment of the backlight module of the present invention.
  • Figure 4 is an enlarged view of a portion B of the optical film of Figure 3;
  • FIG. 5 is a partial cross-sectional view showing the optical film and the reinforcing ring body assembled in the first embodiment of the backlight module of the present invention
  • FIG. 6 is a perspective view of the second embodiment of the backlight module of the present invention after assembly
  • Figure 7 is a partial C enlarged view of the optical film of Figure 6;
  • FIG. 8 is a partial cross-sectional view showing the optical film and the ear portion assembled in the second embodiment of the backlight module of the present invention.
  • Figure 9 is a schematic cross-sectional view showing an embodiment of a liquid crystal display device of the present invention.
  • FIG. 3 is a perspective view of the first embodiment of the backlight module 20 of the present invention
  • FIG. 4 is an enlarged view of a portion B of the optical film 22 of FIG. It is a partial cross-sectional schematic view of the optical film 22 and the reinforcing ring body 24 assembled in the first embodiment of the backlight module 20 of the present invention.
  • the first embodiment of the backlight module 20 of the present invention includes a backing plate 21, an optical film 22, a positioning member 23, and a reinforcing ring body 24. At least one positioning member 23 is disposed on the top surface of the edge of the backing plate 21, and at least one ear portion 25 is disposed at the edge of the optical film 22.
  • the ear portion 25 is provided with a positioning hole 250, and the positioning hole 250 is correspondingly disposed on the positioning member 23. on.
  • the positioning hole 250 of the ear portion 25 can be a rectangular positioning hole, and the positioning member 23 can be correspondingly arranged as a rectangular positioning block.
  • the shape of the positioning hole 250 and the positioning member 23 can also be correspondingly configured to be other shapes.
  • the number of the positioning members 23 may also be plural, and the number of the ears 25 at the edge of the optical film 22 is set corresponding to the number of the positioning members 23.
  • the reinforcing ring body 24 is circumferentially fixed to the bottom surface of the ear portion 25, and the shape of the reinforcing ring body 24 is adapted to the shape of the ear portion 25.
  • the strength of the reinforcing ring 24 is greater than the strength of the optical film 22, and the material of the reinforcing ring 24 may be polyethylene terephthalate (polyethylene). Terephthalate, PET) or other materials of better strength.
  • the reinforcing ring body 24 can be adhered to the bottom surface of the ear portion 25 by double-sided adhesive bonding or fixedly disposed on the bottom surface of the ear portion 25 by other means.
  • the reinforcing ring 24 surrounding the ear 25, at least the strength of the portion of the ear portion 25 remote from the center of the optical film 22 is greater than the strength of the remaining portion, and the strength of the hanging portion 251 of the ear portion 25 is improved.
  • the reinforcing ring body 24 can also be fixed around the top surface of the ear portion 25, and the strength of the hanging portion 251 of the ear portion 25 can also be raised, which is not limited thereto.
  • the design of the reinforcing ring 24 can also be eliminated, and the material of the ear portion 25 at the edge of the optical film 22 can be directly replaced with other materials having a strength greater than the strength of the optical film 22, such as The PET material or the like of the reinforcing ring body 24 described above is used.
  • the first embodiment of the backlight module 20 of the present invention is reinforced by the ear portion 25 of the optical film 22, and the strength of the reinforcing ring body 24 used for the reinforcing design is greater than the strength of the optical film 22.
  • the strength of the ear portion 25 after the reinforcing design is greater than the strength of the optical film 22, and the strength of the hanging portion 251 of the ear portion 25 is improved, thereby improving the reliability of the positioning of the optical film 22, and is suitable for the design of a narrow bezel.
  • FIG. 6 is a perspective view of the second embodiment of the backlight module 30 of the present invention.
  • FIG. 7 is a partial enlarged view of the optical film 32 of FIG. It is a partial cross-sectional view of the optical film 32 and the ear portion 34 assembled in the second embodiment of the backlight module 30 of the present invention.
  • the second embodiment of the backlight module 30 of the present invention includes a backing plate 31, an optical film 32, a positioning member 33, and an ear portion 34. At least one positioning member 33 is disposed on the top surface of the edge of the backing plate 31. At least one ear portion 34 is disposed at the edge of the optical film 32. The ear portion 34 is provided with a positioning hole 340. The positioning hole 340 is correspondingly disposed on the positioning member 33. on.
  • the positioning hole 340 of the ear portion 34 can be a rectangular positioning hole, and the positioning member 33 can be correspondingly arranged as a rectangular positioning block.
  • the shape of the positioning hole 340 and the positioning member 33 can also be correspondingly configured to be other shapes.
  • the number of the positioning members 33 may also be plural, and the number of the ears 34 is set corresponding to the number of the positioning members 33.
  • the ear portion 34 may be partially fixed to the bottom surface of the edge of the optical film 32 by double-sided adhesive bonding or otherwise fixed to the bottom surface of the edge of the optical film 32.
  • the strength of the ear portion 34 is greater than the strength of the optical film 32, and the material of the ear portion 34 may be polyethylene terephthalate (polyethylene). Terephthalate, PET) or other materials of better strength.
  • the design of the ear portion 34 at the edge of the optical film 32 is such that the strength of the hanging portion 341 of the ear portion 34 is improved.
  • the ear portion 34 can also be fixed to the top surface of the edge of the optical film 32, and the strength of the hanging portion 341 of the ear portion 34 can also be raised, which is not limited thereto.
  • the second embodiment of the backlight module 30 of the present invention has a reinforcing design at the edge of the optical film 32.
  • the strength of the ear portion 34 used in the reinforcing design is greater than the strength of the optical film 32, so that the ear portion 34 is suspended.
  • the strength of the portion 341 is improved, thereby improving the reliability of the positioning of the optical film 32, and is suitable for the design of a narrow bezel.
  • FIG. 9 is a schematic cross-sectional view showing an embodiment of the liquid crystal display device 40 of the present invention.
  • the embodiment of the liquid crystal display device 40 of the present invention includes a display panel 41 and a backlight module 20.
  • the backlight module 20 is disposed under the display panel 41 for providing backlighting for the display panel 41 , and includes a back plate 21 , an optical film 22 , a positioning member 23 , and a reinforcing ring body 24 .
  • At least one positioning member 23 is disposed on the top surface of the edge of the backing plate 21, and at least one ear portion 25 is disposed at the edge of the optical film 22.
  • the ear portion 25 is provided with a positioning hole 250, and the positioning hole 250 is correspondingly disposed on the positioning member 23. on.
  • the positioning hole 250 of the ear portion 25 can be a rectangular positioning hole, and the positioning member 23 can be correspondingly arranged as a rectangular positioning block.
  • the shape of the positioning hole 250 and the positioning member 23 can also be correspondingly configured to be other shapes.
  • the number of the positioning members 23 may also be plural, and the number of the ears 25 at the edge of the optical film 22 is set corresponding to the number of the positioning members 23.
  • the reinforcing ring body 24 is circumferentially fixed to the bottom surface of the ear portion 25, and the shape of the reinforcing ring body 24 is adapted to the shape of the ear portion 25.
  • the strength of the reinforcing ring 24 is greater than the strength of the optical film 22, and the material of the reinforcing ring 24 may be polyethylene terephthalate (polyethylene). Terephthalate, PET) or other materials of better strength.
  • the reinforcing ring body 24 can be fixed to the bottom surface of the ear portion 25 by double-sided tape or fixedly disposed on the bottom surface of the ear portion 25 by other means.
  • the liquid crystal display device 40 can be a TFT-LCD (Thin Film Transistor-Liquid Crystal Display, thin film field effect transistor liquid crystal display), can also be other types of liquid crystal display devices, and is not limited herein.
  • TFT-LCD Thin Film Transistor-Liquid Crystal Display, thin film field effect transistor liquid crystal display
  • the design of the reinforcing ring 24 can also be eliminated, and the material of the ear portion 25 at the edge of the optical film 22 can be directly replaced with other materials having a strength greater than the strength of the optical film 22, such as The PET material or the like of the reinforcing ring body 24 described above is used.
  • the design of the ear portion 25 and the reinforcing ring body 24 in the above embodiment may be eliminated, and the bottom surface or the top surface of the edge of the optical film 22 may be adhered to the ear portion with the strength greater than the strength of the optical film 22.
  • the material of the ear portion may be a material with good strength such as polyethylene terephthalate, and the positioning hole of the ear is sleeved on the positioning member 23, which can also improve the reliability of positioning of the optical film 22. There are no restrictions on it.
  • the embodiment of the liquid crystal display device 40 of the present invention is designed to be reinforced by the ear portion 25 of the optical film 22, and the strength of the reinforcing ring body 24 used for the reinforcing design is greater than the strength of the optical film 22, so that the reinforcing is performed.
  • the strength of the strongly designed ear portion 25 is greater than the strength of the optical film 22, and the strength of the hanging portion 251 of the ear portion 25 is improved, thereby improving the reliability of the positioning of the optical film 22, and is suitable for the design of a narrow bezel.

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

Abstract

背光模组（20），包括背板（21）、光学膜片（22）以及定位件（23）。至少一定位件（23）凸起设置于背板（21）边缘的顶面。光学膜片（22）的边缘处至少设有一耳部（25）。耳部（25）设有定位孔（250）。定位孔（250）套设于定位件（23）上。至少耳部（25）的远离光学膜片（22）中心的部分的强度大于其余部分的强度。还公开了具有该背光模组（20）的液晶显示装置。该背光模组（20）能够提高光学膜片（22）定位的可靠性，适用于窄边框的设计。

Description

一种液晶显示装置及其背光模组
【技术领域】
本发明涉及液晶显示技术领域，特别是涉及一种液晶显示装置及其背光模组。
【背景技术】
背光模组中光学膜片的定位可靠性会影响到背光模组的光学品质。请一并参阅图1和图2，图1是现有技术中一种背光模组10组装后的立体示意图，图2是图1中光学膜片12的局部A放大图。现有技术中，一种定位光学膜片的方法为：在光学膜片12的边缘设置定位孔120，并在背板11上相应定位孔120的位置设置折弯块13，折弯块13上穿定位孔120进而固定光学膜片12，即通过定位孔120与折弯块13的配合来实现光学膜片12的定位。
本申请发明人在长期研发中发现，在窄边框模组的设计中，光学膜片12的悬挂部分121（位于定位孔之外的部分）尺寸越来越小，强度无法得到保证，进而影响光学膜片12定位的可靠性。
【发明内容】
为了至少部分解决以上问题，本发明提出了一种液晶显示装置及其背光模组，能够提高光学膜片定位的可靠性，适用于窄边框的设计。
为解决上述技术问题，本发明采用的一个技术方案是：提供一种背光模组，包括：背板、光学膜片以及定位件；至少一定位件凸起设置于背板边缘的顶面，光学膜片的边缘处至少设有一耳部，耳部设有定位孔，定位孔套设于定位件上；背光模组包括形状与耳部适配的补强环体，补强环体固定于耳部的顶面或底面，以使得耳部的远离光学膜片中心的部分的强度大于其余部分的强度；补强环体通过双面胶粘贴固定于耳部的顶面或底面。
其中，补强环体的材料为聚对苯二甲酸乙二醇酯。
其中，耳部粘贴固定于光学膜片的边缘，并且其强度大于光学膜片的强度。
其中，耳部的材料为聚对苯二甲酸乙二醇酯。
为解决上述技术问题，本发明采用的另一个技术方案是：提供一种背光模组，包括：背板、光学膜片以及定位件；至少一定位件凸起设置于背板边缘的顶面，光学膜片的边缘处至少设有一耳部，耳部设有定位孔，定位孔套设于定位件上；其中，至少耳部的远离光学膜片中心的部分的强度大于其余部分的强度。
其中，背光模组包括形状与耳部适配的补强环体，补强环体固定于耳部的顶面或底面，并且其强度大于光学膜片的强度。
其中，补强环体的材料为聚对苯二甲酸乙二醇酯。
其中，耳部粘贴固定于光学膜片的边缘，并且其强度大于光学膜片的强度。
其中，耳部的材料为聚对苯二甲酸乙二醇酯。
为解决上述技术问题，本发明采用的又一个技术方案是：提供一种液晶显示装置，包括：显示面板；背光模组，设置于显示面板下方，其包括：背板、光学膜片以及定位件；至少一定位件凸起设置于背板边缘的顶面，光学膜片的边缘处至少设有一耳部，耳部设有定位孔，定位孔套设于定位件上；其中，至少耳部的远离光学膜片中心的部分的强度大于其余部分的强度。
其中，背光模组包括形状与耳部适配的补强环体，补强环体固定于耳部的顶面或底面，并且其强度大于光学膜片的强度。
其中，补强环体的材料为聚对苯二甲酸乙二醇酯。
其中，耳部粘贴固定于光学膜片的边缘，并且其强度大于光学膜片的强度。
其中，耳部的材料为聚对苯二甲酸乙二醇酯。
本发明的有益效果是：区别于现有技术的情况，本发明实施方式通过对光学膜片的耳部进行补强设计，使得进行补强设计之后的耳部强度得到提升，进而能够提高光学膜片定位的可靠性，适用于窄边框的设计。
【附图说明】
图1是现有技术中一种背光模组组装后的立体示意图；
图2是图1中光学膜片的局部A放大图；
图3是本发明背光模组第一实施方式组装后的立体示意图；
图4是图3中光学膜片的局部B放大图；
图5是本发明背光模组第一实施方式中光学膜片和补强环体组装后的部分截面示意图；
图6是本发明背光模组第二实施方式组装后的立体示意图；
图7是图6中光学膜片的局部C放大图；
图8是本发明背光模组第二实施方式中光学膜片和耳部组装后的部分截面示意图；
图9是本发明液晶显示装置实施方式的截面示意图。
【具体实施方式】
下面将结合本发明实施方式中的附图，对本发明实施方式中的技术方案进行清楚、完整地描述，显然，所描述的实施方式仅仅是本发明一部分实施方式，而不是全部的实施方式。基于本发明中的实施方式，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施方式，均属于本发明保护的范围。
请一并参阅图3、图4和图5，图3是本发明背光模组20第一实施方式组装后的立体示意图，图4是图3中光学膜片22的局部B放大图，图5是本发明背光模组20第一实施方式中光学膜片22和补强环体24组装后的部分截面示意图。
本发明背光模组20第一实施方式包括背板21、光学膜片22、定位件23以及补强环体24。至少一定位件23凸起设置于背板21边缘的顶面，光学膜片22的边缘处至少设有一耳部25，耳部25设有定位孔250，定位孔250对应套设于定位件23上。耳部25的定位孔250可为矩形定位孔，定位件23可相应设置为矩形定位块，定位孔250与定位件23的形状也可相应适配设置为其他形状。其中，定位件23的数量也可为多个，光学膜片22边缘处的耳部25数量对应定位件23的数量而设置。
补强环体24环绕固定于耳部25的底面，补强环体24的形状与耳部25形状适配。补强环体24的强度大于光学膜片22的强度，补强环体24的材料可为聚对苯二甲酸乙二醇酯（polyethylene terephthalate，PET）或其他强度较好的材料。其中，补强环体24可通过双面胶粘贴的方式粘附于耳部25的底面或通过其他方式固定设置于耳部25的底面。通过补强环体24环绕于耳部25的设计，使得至少耳部25的远离光学膜片22中心的部分的强度大于其余部分的强度，进而耳部25悬挂部分251的强度得到提升。在其他实施方式中，补强环体24也可环绕固定于耳部25的顶面，同样可提升耳部25悬挂部分251的强度，此处不作过多限制。
此外，在其他实施方式中，也可取消补强环体24的设计，而将光学膜片22边缘处的耳部25的材料直接替换设置为其他强度大于光学膜片22强度的材料，比如可采用上述补强环体24的PET材料等。
可以理解，本发明背光模组20第一实施方式通过在光学膜片22的耳部25进行补强设计，补强设计所使用的补强环体24的强度大于光学膜片22的强度，使得进行补强设计后的耳部25的强度大于光学膜片22的强度，耳部25悬挂部分251的强度得到提升，进而能够提高光学膜片22定位的可靠性，适用于窄边框的设计。
请一并参阅图6、图7和图8，图6是本发明背光模组30第二实施方式组装后的立体示意图，图7是图6中光学膜片32的局部C放大图，图8是本发明背光模组30第二实施方式中光学膜片32和耳部34组装后的部分截面示意图。
本发明背光模组30第二实施方式包括背板31、光学膜片32、定位件33以及耳部34。至少一定位件33凸起设置于背板31边缘的顶面，光学膜片32的边缘处至少设有一耳部34，耳部34设有定位孔340，定位孔340对应套设于定位件33上。耳部34的定位孔340可为矩形定位孔，定位件33可相应设置为矩形定位块，定位孔340与定位件33的形状也可相应适配设置为其他形状。其中，定位件33的数量也可为多个，耳部34的数量对应定位件33的数量而设置。
耳部34可通过双面胶粘贴的方式部分固定设置于光学膜片32边缘的底面或通过其他方式固定设置于光学膜片32边缘的底面。耳部34的强度大于光学膜片32的强度，耳部34的材料可为聚对苯二甲酸乙二醇酯（polyethylene terephthalate，PET）或其他强度较好的材料。通过耳部34设置于光学膜片32边缘的设计，使得耳部34悬挂部分341的强度得到提升。在其他实施方式中，耳部34也可固定于光学膜片32边缘的顶面，同样可提升耳部34悬挂部分341的强度，此处不作过多限制。
可以理解，本发明背光模组30第二实施方式通过在光学膜片32的边缘进行补强设计，补强设计所使用的耳部34的强度大于光学膜片32的强度，使得耳部34悬挂部分341的强度得到提升，进而能够提高光学膜片32定位的可靠性，适用于窄边框的设计。
请一并参阅图3、图4、图5和图9，图9是本发明液晶显示装置40实施方式的截面示意图。
本发明液晶显示装置40实施方式包括显示面板41、背光模组20。
背光模组20设置于显示面板41下方用于为显示面板41提供背光，其包括背板21、光学膜片22、定位件23以及补强环体24。至少一定位件23凸起设置于背板21边缘的顶面，光学膜片22的边缘处至少设有一耳部25，耳部25设有定位孔250，定位孔250对应套设于定位件23上。耳部25的定位孔250可为矩形定位孔，定位件23可相应设置为矩形定位块，定位孔250与定位件23的形状也可相应适配设置为其他形状。其中，定位件23的数量也可为多个，光学膜片22边缘处的耳部25数量对应定位件23的数量而设置。
补强环体24环绕固定于耳部25的底面，补强环体24的形状与耳部25形状适配。补强环体24的强度大于光学膜片22的强度，补强环体24的材料可为聚对苯二甲酸乙二醇酯（polyethylene terephthalate，PET）或其他强度较好的材料。其中，补强环体24可通过双面胶粘贴固定于耳部25的底面或通过其他方式固定设置于耳部25的底面。通过补强环体24环绕于耳部25的设计，使得至少耳部25的远离光学膜片22中心的部分的强度大于其余部分的强度，进而耳部25悬挂部分251的强度得到提升。在其他实施方式中，补强环体24也可环绕固定于耳部25的顶面，同样可提升耳部25悬挂部分251的强度。液晶显示装置40可以为TFT-LCD（Thin Film Transistor-Liquid Crystal Display，薄膜场效应晶体管液晶显示器），也可为其他类型的液晶显示装置，此处不作过多限制。
此外，在其他实施方式中，也可取消补强环体24的设计，而将光学膜片22边缘处的耳部25的材料直接替换设置为其他强度大于光学膜片22强度的材料，比如可采用上述补强环体24的PET材料等。在其他实施方式中，也可取消上述实施方式中耳部25与补强环体24的设计，而采用强度大于光学膜片22强度的耳部粘贴固定于光学膜片22边缘的底面或顶面，耳部的材料可为聚对苯二甲酸乙二醇酯等强度较好的材料，通过耳部的定位孔套设于定位件23上，同样能够提高光学膜片22定位的可靠性，此处不作过多限制。
可以理解，本发明液晶显示装置40实施方式通过在光学膜片22的耳部25进行补强设计，补强设计所使用的补强环体24的强度大于光学膜片22的强度，使得进行补强设计后的耳部25的强度大于光学膜片22的强度，耳部25悬挂部分251的强度得到提升，进而能够提高光学膜片22定位的可靠性，适用于窄边框的设计。
以上所述仅为本发明的实施方式，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。

Claims (14)

  1. 一种背光模组，其中，包括：
    背板、光学膜片以及定位件；
    至少一所述定位件凸起设置于背板边缘的顶面，所述光学膜片的边缘处至少设有一耳部，所述耳部设有定位孔，所述定位孔套设于定位件上；
    所述背光模组包括形状与所述耳部适配的补强环体，所述补强环体固定于耳部的顶面或底面，以使得所述耳部的远离光学膜片中心的部分的强度大于其余部分的强度；
    其中，所述补强环体通过双面胶粘贴固定于耳部的顶面或底面。
  2. 根据权利要求1所述的背光模组，其中，
    所述补强环体的材料为聚对苯二甲酸乙二醇酯。
  3. 根据权利要求1所述的背光模组 ，其中，
    所述耳部粘贴固定于所述光学膜片的边缘，并且其强度大于所述光学膜片的强度。
  4. 根据权利要求3所述的背光模组 ，其中，
    所述耳部的材料为聚对苯二甲酸乙二醇酯。
  5. 一种背光模组，其中，包括：
    背板、光学膜片以及定位件；
    至少一所述定位件凸起设置于背板边缘的顶面，所述光学膜片的边缘处至少设有一耳部，所述耳部设有定位孔，所述定位孔套设于定位件上；
    其中，至少所述耳部的远离光学膜片中心的部分的强度大于其余部分的强度。
  6. 根据权利要求5所述的背光模组，其中，
    所述背光模组包括形状与所述耳部适配的补强环体，所述补强环体固定于耳部的顶面或底面，并且其强度大于所述光学膜片的强度。
  7. 根据权利要求6所述的背光模组，其中，
    所述补强环体的材料为聚对苯二甲酸乙二醇酯。
  8. 根据权利要求5所述的背光模组，其中：
    所述耳部粘贴固定于所述光学膜片的边缘，并且其强度大于所述光学膜片的强度。
  9. 根据权利要求8所述的背光模组，其中，
    所述耳部的材料为聚对苯二甲酸乙二醇酯。
  10. 一种液晶显示装置，其中，包括：
    显示面板；
    背光模组，设置于所述显示面板下方，其包括：
    背板、光学膜片以及定位件；
    至少一所述定位件凸起设置于背板边缘的顶面，所述光学膜片的边缘处至少设有一耳部，所述耳部设有定位孔，所述定位孔套设于定位件上；
    其中，至少所述耳部的远离光学膜片中心的部分的强度大于其余部分的强度。
  11. 根据权利要求10所述的液晶显示装置，其中，
    所述背光模组包括形状与所述耳部适配的补强环体，所述补强环体固定于耳部的顶面或底面，并且其强度大于所述光学膜片的强度。
  12. 根据权利要求11所述的液晶显示装置，其中，
    所述补强环体的材料为聚对苯二甲酸乙二醇酯。
  13. 根据权利要求10所述的液晶显示装置，其中，
    所述耳部粘贴固定于所述光学膜片的边缘，并且其强度大于所述光学膜片的强度。
  14. 根据权利要求13所述的液晶显示装置，其中，
    所述耳部的材料为聚对苯二甲酸乙二醇酯。
PCT/CN2012/082975 2012-10-11 2012-10-15 一种液晶显示装置及其背光模组 WO2014056238A1 (zh)

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