WO2016078126A1 - 背光模组和液晶显示装置 - Google Patents

背光模组和液晶显示装置 Download PDF

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Publication number
WO2016078126A1
WO2016078126A1 PCT/CN2014/092605 CN2014092605W WO2016078126A1 WO 2016078126 A1 WO2016078126 A1 WO 2016078126A1 CN 2014092605 W CN2014092605 W CN 2014092605W WO 2016078126 A1 WO2016078126 A1 WO 2016078126A1
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WO
WIPO (PCT)
Prior art keywords
light guide
guide plate
pressing mechanism
sidewall
light
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Application number
PCT/CN2014/092605
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English (en)
French (fr)
Inventor
周革革
Original Assignee
深圳市华星光电技术有限公司
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Publication of WO2016078126A1 publication Critical patent/WO2016078126A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
    • 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
    • G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00—Fastening of light sources or lamp holders
    • 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
    • G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses
    • 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

Definitions

  • the present invention relates to the field of display, and in particular, to a backlight module and a liquid crystal display device.
  • the backlight module is an important component in a liquid crystal display (LCD). Since the liquid crystal itself does not emit light, the backlight module is required to provide light.
  • the backlight module guides the light emitted by the light source into a planar light source by the light guide plate to supply the liquid crystal display panel.
  • there is a gap between the light source and the light guide plate and the light emitted by the light source leaks through the gap between the light source and the light guide plate, so that the light emitted by the light source cannot completely enter the light guide plate, thereby causing the light transmittance of the light guide plate to be partial. low.
  • the invention provides a backlight module, wherein a light guide plate of the backlight module has a high light-input rate.
  • a backlight module includes a backplane, a light guide plate, a light source, and a plastic frame, the backboard is configured to receive the light guide plate, the light source, and the plastic frame, and the back plate includes a bottom plate And a first side wall and a second side wall extending in the same direction along the two sides of the bottom plate, the light guide plate is disposed adjacent to the bottom plate, and the light guide plate includes a first side and a second side opposite to each other.
  • a side of the light source is disposed adjacent to the light source as a light incident surface of the light guide plate
  • the plastic frame is disposed on the bottom plate
  • the plastic frame includes a third sidewall and a fourth sidewall, and the third sidewall
  • the fourth side wall is disposed between the second side wall and the second side surface
  • the plastic frame further includes at least one pressing mechanism.
  • the pressing mechanism extends from the fourth sidewall toward the second side of the light guide plate and abuts against the second side of the light guide plate such that the first side of the light guide plate is adjacent to the light source a light emitting surface, and the pressing mechanism is integrally formed with the plastic frame.
  • the pressing mechanism includes a resisting portion and a connecting portion, the resisting portion abutting the second side surface of the light guide plate, the connecting portion connecting the fourth side wall of the plastic frame and the Resist the Ministry.
  • the pressing mechanism when the number of the pressing mechanisms is greater than or equal to two, the pressing mechanism is evenly arranged to be at a position of the light guide plate.
  • the number of the pressing mechanisms is three, which are respectively a first pressing mechanism, a second pressing mechanism, and a third pressing mechanism, and the first pressing mechanism, the second pressing mechanism, and the The third pressing mechanism respectively abuts on the second side, the first pressing mechanism is abutted at a center of the second side of the light guide plate, and the second pressing mechanism is resisted by the The position on the second side is symmetrical with the position of the third pressing mechanism abutting on the second side with respect to a position at which the first pressing mechanism abuts on the second side.
  • the backlight module further includes a reflective sheet and at least one optical film.
  • the reflective sheet is disposed between the light guide plate and the bottom plate, and the optical film is disposed adjacent to a light emitting surface of the light guide plate.
  • the present invention provides a liquid crystal display device in which a light guide plate of a backlight module in a liquid crystal display device has a high light incident rate.
  • a liquid crystal display device includes a backlight module, the backlight module includes a back plate, a light guide plate, a light source, and a plastic frame, and the back plate is configured to receive the light guide plate, the light source, and the
  • the backplane includes a bottom plate and a first side wall and a second side wall extending in the same direction along the two sides of the bottom plate, the light guide plate is disposed adjacent to the bottom plate, and the light guide plate includes a relative arrangement a side surface and a second side, the first side is disposed adjacent to the light source as a light incident surface of the light guide plate, the plastic frame is disposed on the bottom plate, and the plastic frame includes a third side wall and a first side a fourth sidewall disposed between the first sidewall and the light source, the fourth sidewall being disposed between the second sidewall and the second sidewall,
  • the plastic frame further includes at least one pressing mechanism extending from the fourth sidewall toward the second side of the light guide plate and abutting against the second side of the light
  • the pressing mechanism includes a resisting portion and a connecting portion, the abutting portion abuts the second side surface of the light guide plate, and the connecting portion connects the fourth side wall of the plastic frame and the abutting portion Hold the department.
  • the pressing mechanism when the number of the pressing mechanisms is greater than or equal to two, the pressing mechanism is evenly arranged to be at a position of the light guide plate.
  • the number of the pressing mechanisms is three, which are respectively a first pressing mechanism, a second pressing mechanism, and a third pressing mechanism, and the first pressing mechanism, the second pressing mechanism, and the The third pressing mechanism respectively abuts on the second side, the first pressing mechanism is abutted at a center of the second side of the light guide plate, and the second pressing mechanism is resisted by the The position on the second side is symmetrical with the position of the third pressing mechanism abutting on the second side with respect to a position at which the first pressing mechanism abuts on the second side.
  • the backlight module further includes a reflective sheet and at least one optical film.
  • the reflective sheet is disposed between the light guide plate and the bottom plate, and the optical film is disposed adjacent to a light emitting surface of the light guide plate.
  • the backlight module of the above embodiments and the liquid crystal display device including the backlight module wherein at least one pressing mechanism is disposed on the fourth sidewall of the plastic frame of the backlight module, and the pressing mechanism Resisting the second side of the light guide plate such that the first side of the light guide plate is adjacent to the light exit surface of the light source, so that light emitted by the light source can enter the light guide plate more.
  • the light incident rate of the light guide plate is increased.
  • the pressing mechanism is integrally formed with the fourth side wall of the rubber frame, the pressing mechanism is not loosened, thereby achieving a better pressing effect.
  • FIG. 1 is a cross-sectional structural view of a backlight module according to a preferred embodiment of the present invention.
  • FIG. 2 is a cross-sectional structural view of a liquid crystal display device according to a preferred embodiment of the present invention.
  • FIG. 1 is a cross-sectional structural diagram of a backlight module according to a preferred embodiment of the present invention.
  • the backlight module 100 includes a back plate 110 , a light guide plate 120 , a light source 130 , and a plastic frame 140 .
  • the back plate 110 includes a bottom plate 111 and a first side wall 112 and a second side wall 113 extending in the same direction along both sides of the bottom plate 111.
  • the light guide plate 120 is disposed adjacent to the bottom plate 111.
  • the light guide plate 120 includes a first side 121 and a second side 122 disposed opposite to each other.
  • the first side surface 121 is disposed adjacent to the light source 130 to serve as a light incident surface of the light guide plate 120 .
  • the plastic frame 140 is disposed on the bottom plate 111 , and the plastic frame 140 includes a third sidewall 141 and a fourth sidewall 142 .
  • the third sidewall 141 is disposed between the first sidewall 112 and the light source 130
  • the fourth sidewall 142 is disposed between the second sidewall 113 and the second sidewall 122 .
  • the plastic frame 140 further includes at least one pressing mechanism 143 extending from the fourth sidewall 142 toward the second side surface 122 of the light guide plate 120 and resisting the light guide plate 120
  • the second side surface 122 of the light guide plate 120 is adjacent to the light emitting surface 131 of the light source, and the pressing mechanism 143 is integrally formed with the plastic frame 140.
  • the pressing mechanism 143 includes a resisting portion 1431 and a connecting portion 1432.
  • the resisting portion 1431 abuts the second side surface 122 of the light guide plate 120, and the connecting portion 1432 connects the first frame of the plastic frame 140.
  • the four side walls 142 are opposite to the abutting portion 1431.
  • the number of the pressing mechanisms 143 is greater than or equal to two.
  • the pressing mechanism 143 is evenly arranged at a position against the light guide plate 120. Therefore, the force applied by the pressing mechanism 143 to the light guide plate 120 is uniform to prevent the light guide plate 120 from being damaged or caused by the uneven force applied by the pressing mechanism 143 to the light guide plate 120.
  • the light guide plate 120 is displaced in position such that the light entering the light guide plate 120 is uneven.
  • the three pressing mechanisms 143 are respectively named as a first pressing mechanism, a second pressing mechanism, and a third pressing mechanism, the a pressing mechanism, the second pressing mechanism and the third pressing mechanism respectively abut on the second side surface 122, the first pressing mechanism resisting the second of the light guide plate 120 a central portion of the side surface 122, the second pressing mechanism abuts the position of the second side surface 122 and the third pressing mechanism abuts the position of the second side surface 122 with respect to the first pressing mechanism
  • the position resisting the second side surface 122 is symmetrical.
  • the force applied by the first pressing mechanism, the second pressing mechanism and the third pressing mechanism to the light guide plate 120 is uniform to prevent the pressing mechanism from being
  • the light guide plate 120 is applied with a non-uniform force, and the light guide plate 120 is damaged or the position of the light guide plate 120 is shifted.
  • the light entering the light guide plate 120 is made uneven.
  • the backlight module 100 further includes a reflective sheet 150 and at least one optical film 160.
  • the reflective sheet 150 is disposed between the light guide plate 120 and the bottom plate 111 of the backlight 110.
  • the reflective sheet 150 reflects light emitted from the surface of the light guide plate 120 adjacent to the reflective sheet 150.
  • the light guide plate 120 further includes a light emitting surface 123.
  • the light emitting surface 123 of the light guide plate 120 is connected to the light incident surface of the light guide plate 120 (ie, the first side surface 121), and the light emitting surface 123 is the guide.
  • the light plate 123 is away from the surface of the bottom plate 111. Light incident from the light incident surface of the light guide plate 120 is emitted from the light exit surface 123 of the light guide plate 120 to convert the light emitted from the light source 130 into a surface light source.
  • the optical film 160 is disposed adjacent to the light emitting surface 123 of the light guide plate 120. In the present embodiment, the three optical films 160 are stacked together and then directly disposed on the light-emitting surface 123 of the light guide plate 120.
  • the direct setting means that there is no gap between the optical film 160 and the light guide plate 120.
  • the optical film 160 may not be directly disposed on the light-emitting surface 123 of the light guide plate 120, and between the optical film 160 and the light-emitting surface 123 of the light guide plate 120. There is a gap in the setting. The optical film 160 is used to make the light emitted from the light exit surface 123 of the light guide plate 120 more uniform.
  • the bonding structure 170 is used to fix the plastic frame 140 and the light guide plate 120, the plastic frame 140 and the associated light source 130, and the plastic frame 140 and other components.
  • the bonding structure 170 is a double-sided tape.
  • At least one pressing mechanism 143 is disposed on the plastic frame 140 of the backlight module 100, and the pressing mechanism 143 is abutted on the second side of the light guide plate 120.
  • the first side surface 121 of the light guide plate 120 is adjacent to the light emitting surface of the light source 130. Therefore, the light emitted by the light source 130 can enter the light guide plate 120 more, which increases the The light incident rate of the light guide plate 120.
  • the pressing mechanism 143 is integrally formed with the fourth side wall 142 of the plastic frame 140, the pressing mechanism 143 is not loosened, thereby achieving a better pressing effect.
  • the liquid crystal display device of the present invention will now be described with reference to FIG. 1. Please refer to Figure 2, which is this issue.
  • the liquid crystal display device 10 includes a backlight module 100, a liquid crystal display panel 200, and a front frame 300.
  • the backlight module 100 provides a uniform surface light source for the liquid crystal display panel 200
  • the backlight module 100 is disposed below the liquid crystal display panel 200 .
  • the liquid crystal display panel 200 is disposed above the backlight module 100.
  • the front frame 300 is a hollow frame structure, and the front frame 300 cooperates with the backlight module 100 to fix the liquid crystal display panel 200.
  • the backlight module 100 includes a back plate 110 , a light guide plate 120 , a light source 130 , and a plastic frame 140 .
  • the back plate 110 includes a bottom plate 111 and a first side wall 112 and a second side wall 113 extending in the same direction along both sides of the bottom plate 111.
  • the light guide plate 120 is disposed adjacent to the bottom plate 111.
  • the light guide plate 120 includes a first side 121 and a second side 122 disposed opposite to each other.
  • the first side surface 121 is disposed adjacent to the light source 130 to serve as a light incident surface of the light guide plate 120 .
  • the plastic frame 140 is disposed on the bottom plate 111 , and the plastic frame 140 includes a third sidewall 141 and a fourth sidewall 142 .
  • the third sidewall 141 is disposed between the first sidewall 112 and the light source 130
  • the fourth sidewall 142 is disposed between the second sidewall 113 and the second sidewall 122
  • the plastic frame 140 further includes at least one pressing mechanism 143 extending from the fourth sidewall 142 toward the second side surface 122 of the light guide plate 120 and resisting the light guide plate 120
  • the second side surface 122 of the light guide plate 120 is adjacent to the light emitting surface 131 of the light source, and the pressing mechanism 143 is integrally formed with the plastic frame 140.
  • the pressing mechanism 143 includes a resisting portion 1431 and a connecting portion 1432.
  • the resisting portion 1431 abuts the second side surface 122 of the light guide plate 120, and the connecting portion 1432 connects the first frame of the plastic frame 140.
  • the four side walls 142 are opposite to the abutting portion 1431.
  • the number of the pressing mechanisms 143 is greater than or equal to two.
  • the pressing mechanism 143 is evenly arranged at a position against the light guide plate 120. Therefore, the force applied by the pressing mechanism 143 to the light guide plate 120 is uniform to prevent the light guide plate 120 from being damaged or caused by the uneven force applied by the pressing mechanism 143 to the light guide plate 120.
  • the light guide plate 120 is displaced in position such that the light entering the light guide plate 120 is uneven.
  • the three pressing mechanisms 143 are respectively named as a first pressing mechanism, a second pressing mechanism, and a third pressing mechanism, the a pressing mechanism, the second pressing mechanism and the third pressing mechanism respectively abut against the second side surface 122
  • the first pressing mechanism abuts the center of the second side surface 122 of the light guide plate 120
  • the second pressing mechanism abuts the position of the second side surface 122 and the third pressing
  • the mechanism is symmetrical with respect to a position at which the second side surface 122 abuts against the first pressing mechanism on the second side surface 122.
  • the force applied by the first pressing mechanism, the second pressing mechanism and the third pressing mechanism to the light guide plate 120 is uniform to prevent the pressing mechanism from being
  • the light guide plate 120 is damaged by the light guide plate 120 or the position of the light guide plate 120 is displaced, so that the light entering the light guide plate 120 is uneven.
  • the backlight module 100 further includes a reflective sheet 150 and at least one optical film 160.
  • the reflective sheet 150 is disposed between the light guide plate 120 and the bottom plate 111 of the backlight 110.
  • the reflective sheet 150 reflects light emitted from the surface of the light guide plate 120 adjacent to the reflective sheet 150.
  • the light guide plate 120 further includes a light emitting surface 123.
  • the light emitting surface 123 of the light guide plate 120 is connected to the light incident surface of the light guide plate 120 (ie, the first side surface 121), and the light emitting surface 123 is the guide.
  • the light plate 123 is away from the surface of the bottom plate 111. Light incident from the light incident surface of the light guide plate 120 is emitted from the light exit surface 123 of the light guide plate 120 to convert the light emitted from the light source 130 into a surface light source.
  • the optical film 160 is disposed adjacent to the light emitting surface 123 of the light guide plate 120. In the present embodiment, the three optical films 160 are stacked together and then directly disposed on the light-emitting surface 123 of the light guide plate 120.
  • the direct setting means that there is no gap between the optical film 160 and the light guide plate 120.
  • the optical film 160 may not be directly disposed on the light-emitting surface 123 of the light guide plate 120, and between the optical film 160 and the light-emitting surface 123 of the light guide plate 120. There is a gap in the setting. The optical film 160 is used to make the light emitted from the light exit surface 123 of the light guide plate 120 more uniform.
  • the bonding structure 170 is used to fix the plastic frame 140 and the light guide plate 120, the plastic frame 140 and the associated light source 130, and the plastic frame 140 and other components.
  • the bonding structure 170 is a double-sided tape.
  • the plastic frame 140 of the backlight module 100 is disposed on the plastic frame 140
  • the pressing mechanism 143 is integrally formed with the fourth side wall 142 of the plastic frame 140, the pressing mechanism 143 is not loosened, thereby achieving a better pressing effect.

Abstract

一种背光模组（100）及液晶显示装置（10），背光模组（100）包括背板（110）、导光板（120）、光源（130）及胶框（140），背板（110）用于收容导光板（120）、光源（130）及胶框（140），背板（110）包括底板（111）及沿底板（111）两边向同一方向延伸的第一侧壁（112）及第二侧壁（113），导光板（120）邻近底板（111）设置，导光板（120）包括相对设置的第一侧面（121）及第二侧面（122），第一侧面（121）邻近光源（130）设置以作为导光板（120）的入光面，胶框（140）设置于底板（111）上，胶框（140）包括第三侧壁（141）及第四侧壁（142），第三侧壁（141）设置在第一侧壁（112）及光源（130）之间，第四侧壁（142）设置于第二侧壁（113）及第二侧面（122）之间，胶框（140）还包括至少一压紧机构（143），压紧机构（143）自第四侧壁（142）向导光板（120）的第二侧面（122）延伸，且抵持在导光板（120）的第二侧面（122），以使导光板（120）的第一侧面（121）邻近光源（130）的出光面，且压紧机构（143）与胶框（140）一体成型。背光模组（100）及液晶显示装置（10）的导光板（120）具有较高的入光率。

Description

背光模组和液晶显示装置
本发明要求2014年11月17日递交的发明名称为“背光模组和液晶显示装置”的申请号201410654608.6的在先申请优先权，上述在先申请的内容以引入的方式并入本文本中。
技术领域
本发明涉及显示领域，尤其涉及一种背光模组和液晶显示装置。
背景技术
背光模组为液晶显示装置(Liquid Crystal Display,LCD)中的一个重要的组成部分。由于液晶本身并不会发光，因此，需要背光模组提供光线。背光模组通过由导光板将光源发出的光线引导成平面光源，以供给液晶显示面板。现有技术中，光源与导光板之间有间隙，光源发出的光线经过光源与导光板之间的间隙泄露，从而使得光源发出的光线不能完全进入导光板，造成了导光板的入光率偏低。
发明内容
本发明提供了一种背光模组，所述背光模组中的导光板的入光率较高。
一种背光模组，所述背光模组包括背板、导光板、光源及胶框，所述背板用于收容所述导光板、所述光源及所述胶框，所述背板包括底板及沿所述底板两边向同一方向延伸的第一侧壁及第二侧壁，所述导光板邻近所述底板设置，所述导光板包括相对设置的第一侧面及第二侧面，所述第一侧面邻近所述光源设置以作为所述导光板的入光面，所述胶框设置于所述底板上，所述胶框包括第三侧壁及第四侧壁，所述第三侧壁设置在所述第一侧壁及所述光源之间，所述第四侧壁设置于所述第二侧壁及所述第二侧面之间，所述胶框还包括至少一压紧机构，所述压紧机构自所述第四侧壁向所述导光板的第二侧面延伸，且抵持在所述导光板的第二侧面，以使所述导光板的第一侧面邻近所述光源的出光面，且所述压紧机构与所述胶框一体成型。
其中，所述压紧机构包括抵持部和连接部，所述抵持部抵持所述导光板的所述第二侧面，所述连接部连接所述胶框的第四侧壁与所述抵持部。
其中，当所述压紧机构的数目大于或等于两个时，所述压紧机构抵持在所述导光板的位置为均匀排布的。
其中，所述压紧机构的数目为三个，分别为第一压紧机构、第二压紧机构及第三压紧机构，所述第一压紧机构、所述第二压紧机构及所述第三压紧机构分别抵持在所述第二侧面上，所述第一压紧机构抵持在所述导光板的第二侧面的中央，所述第二压紧机构抵持在所述第二侧面上的位置与所述第三压紧机构抵持在所述第二侧面上的位置关于所述第一压紧机构抵持在所述第二侧面上的位置对称。
其中，所述背光模组还包括反射片及至少一光学膜片，所述反射片设置于所述导光板与所述底板之间，所述光学膜片邻近所述导光板的出光面设置。
本发明提供了一种液晶显示装置，所述液晶显示装置中背光模组中的导光板的入光率较高。
一种液晶显示装置，所述液晶显示装置包括背光模组，所述背光模组包括背板、导光板、光源及胶框，所述背板用于收容所述导光板、所述光源及所述胶框，所述背板包括底板及沿所述底板两边向同一方向延伸的第一侧壁及第二侧壁，所述导光板邻近所述底板设置，所述导光板包括相对设置的第一侧面及第二侧面，所述第一侧面邻近所述光源设置以作为所述导光板的入光面，所述胶框设置于所述底板上，所述胶框包括第三侧壁及第四侧壁，所述第三侧壁设置在所述第一侧壁及所述光源之间，所述第四侧壁设置于所述第二侧壁及所述第二侧面之间，所述胶框还包括至少一压紧机构，所述压紧机构自所述第四侧壁向所述导光板的第二侧面延伸，且抵持在所述导光板的第二侧面，以使所述导光板的第一侧面邻近所述光源的出光面，且所述压紧机构与所述胶框一体成型。
其中，所述压紧机构包括抵持部和连接部，所述抵持部抵持所属导光板的所述第二侧面，所述连接部连接所述胶框的第四侧壁与所述抵持部。
其中，当所述压紧机构的数目大于或等于两个时，所述压紧机构抵持在所述导光板的位置为均匀排布的。
其中，所述压紧机构的数目为三个，分别为第一压紧机构、第二压紧机构及第三压紧机构，所述第一压紧机构、所述第二压紧机构及所述第三压紧机构分别抵持在所述第二侧面上，所述第一压紧机构抵持在所述导光板的第二侧面的中央，所述第二压紧机构抵持在所述第二侧面上的位置与所述第三压紧机构抵持在所述第二侧面上的位置关于所述第一压紧机构抵持在所述第二侧面上的位置对称。
其中，所述背光模组还包括反射片及至少一光学膜片，所述反射片设置于所述导光板与所述底板之间，所述光学膜片邻近所述导光板的出光面设置。
以上各实施方式提供的背光模组及包括所述背光模组的液晶显示装置，由于所述背光模组的胶框的第四侧壁上设置有至少一压紧机构，且所述压紧机构抵持在所述导光板的第二侧面，以使所述导光板的第一侧面邻近所述光源的出光面，因此，所述光源发出的光线能够更多地进入到所述导光板中，增大了所述导光板的入光率。进一步地，由于所述压紧机构与所述胶框中的第四侧壁一体成型，所述压紧机构不会松动，从而起到更好地压紧效果。
附图说明
为了更清楚地说明本发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地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，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为本发明一较佳实施方式的背光模组的剖面结构示意图。
图2为本发明一较佳实施方式的液晶显示装置的剖面结构示意图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，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例，都属于本发明保护的范围。
请参阅图1，其为本发明一较佳实施方式的背光模组的剖面结构示意图。 所述背光模组100包括背板110、导光板120、光源130及胶框140。所述背板110包括底板111及沿所述底板111的两边向同一方向延伸的第一侧壁112及第二侧壁113。所述导光板120邻近所述底板111设置，所述导光板120包括相对设置的第一侧面121及第二侧面122。所述第一侧面121邻近所述光源130设置，以作为所述导光板120的入光面。所述胶框140设置于所述底板111上，所述胶框140包括第三侧壁141及第四侧壁142。所述第三侧壁141设置在所述第一侧壁112及所述光源130之间，所述第四侧壁142设置于所述第二侧壁113及所述第二侧面122之间。所述胶框140还包括至少一压紧机构143，所述压紧机构143自所述第四侧壁142向所述导光板120的第二侧面122延伸，且抵持在所述导光板120的所述第二侧面122，以使所述导光板120的第一侧面121邻近所述光源的出光面131，且所述压紧机构143与所述胶框140一体成型。
所述压紧机构143包括抵持部1431和连接部1432，所述抵持部1431抵持所述导光板120的所述第二侧面122，所述连接部1432连接所述胶框140的第四侧壁142与所述抵持部1431。
优选地，所述压紧机构143的数目大于或等于两个。当所述压紧机构143的数目大于或等于两个时，所述压紧机构143抵持在所述导光板120的位置为均匀排布的。由此，所述压紧机构143对所述导光板120施加的作用力是均匀的，以防止压紧机构143对所述导光板120施加的作用力不均匀而造成的导光板120损伤或者造成的导光板120位置偏移而使得导光板120的入光不均匀。
当所述压紧机构143的数目为三个时，为了方便描述，三个所述压紧机构143分别命名为第一压紧机构、第二压紧机构及第三压紧机构，所述第一压紧机构、所述第二压紧机构及所述第三压紧机构分别抵持在所述第二侧面122上，所述第一压紧机构抵持在所述导光板120的第二侧面122的中央，所述第二压紧机构抵持在所述第二侧面122的位置与所述第三压紧机构抵持在所述第二侧面122的位置关于所述第一压紧机构抵持在所述第二侧面122上的位置对称。由此，所述第一压紧机构、所述第二压紧机构及所述第三压紧机构对所述导光板120施加的作用力是均匀的，以防止所述压紧机构对所述导光板120施加作用力不均匀而造成的导光板120损伤或者造成的导光板120位置偏移而 使得所述导光板120的入光不均匀。
在本实施方式中，所述背光模组100还包括反射片150和至少一光学膜片160。所述反射片150设置于所述导光板120与所述背光板110的底板111之间。当所述光源130发出的光线自所述导光板120邻近所述反射片150的表面出射出来时，所述反射片150将自所述导光板120邻近所述反射片150的表面出射的光线反射到所述导光板120内，以减小光损失。所述导光板120还包括一出光面123，所述导光板120的出光面123与所述导光板120的入光面(即第一侧面121)相连，且所述出光面123为所述导光板123远离所述底板111的表面。自所述导光板120的入光面入射的光线自所述导光板120的出光面123出射，以将自光源130发出的光线转换为面光源。所述光学膜片160邻近所述导光板120的出光面123设置。在本实施方式中，三个所述光学膜片160层叠在一起，然后直接设置在所述导光板120的出光面123上。所谓直接设置是指所述光学膜片160与所述导光板120之间没有间隙。可以理解地，在其他实施方式中，所述光学膜片160可以不直接设置在所述导光板120的出光面123上，所述光学膜片160与所述导光板120的出光面123之间设置有间隙。所述光学膜片160用于使自所述导光板120的出光面123出射的光线更加均匀。
优选地，所述胶框140与所述导光板120的出光面123之间，所述胶框140与所述光源130之间，以及所述胶框140与其他元件(比如液晶面板)之间通过粘结结构170相连。所述粘结结构170用于固定所述胶框140与所述导光板120，所述胶框140与所属光源130，以及所述胶框140与其他元件。在一实施方式中，所述粘结结构170为双面胶。
在本发明的背光模组100中，由于所述背光模组100的胶框140上设置有至少一压紧机构143，且所述压紧机构143抵持在所述导光板120的第二侧面122，以使所述导光板120的第一侧面121邻近所述光源130的出光面，因此，所述光源130发出的光线能够更多地进入到所述导光板120中，增大了所述导光板120的入光率。进一步地，由于所述压紧机构143与所述胶框140中的第四侧壁142一体成型，所述压紧机构143不会松动，从而起到更好地压紧效果。
下面结合图1对本发明的液晶显示装置进行介绍。请参阅图2，其为本发 明一较佳实施方式的液晶显示装置的剖面结构示意图。所述液晶显示装置10包括背光模组100、液晶显示面板200及前框300。所述背光模组100为所述液晶显示面板200提供均匀的面光源，且所述背光模组100设置在所述液晶显示面板200的下方。所述液晶显示面板200设置于所述背光模组100的上方。所述前框300为中空的框体结构，所述前框300与所述背光模组100相配合以固定所述液晶显示面板200。
所述背光模组100包括背板110、导光板120、光源130及胶框140。所述背板110包括底板111及沿所述底板111的两边向同一方向延伸的第一侧壁112及第二侧壁113。所述导光板120邻近所述底板111设置，所述导光板120包括相对设置的第一侧面121及第二侧面122。所述第一侧面121邻近所述光源130设置，以作为所述导光板120的入光面。所述胶框140设置于所述底板111上，所述胶框140包括第三侧壁141及第四侧壁142。所述第三侧壁141设置在所述第一侧壁112及所述光源130之间，所述第四侧壁142设置于所述第二侧壁113及所述第二侧面122之间。所述胶框140还包括至少一压紧机构143，所述压紧机构143自所述第四侧壁142向所述导光板120的第二侧面122延伸，且抵持在所述导光板120的所述第二侧面122，以使所述导光板120的第一侧面121邻近所述光源的出光面131，且所述压紧机构143与所述胶框140一体成型。
所述压紧机构143包括抵持部1431和连接部1432，所述抵持部1431抵持所述导光板120的所述第二侧面122，所述连接部1432连接所述胶框140的第四侧壁142与所述抵持部1431。
优选地，所述压紧机构143的数目大于或等于两个。当所述压紧机构143的数目大于或等于两个时，所述压紧机构143抵持在所述导光板120的位置为均匀排布的。由此，所述压紧机构143对所述导光板120施加的作用力是均匀的，以防止压紧机构143对所述导光板120施加的作用力不均匀而造成的导光板120损伤或者造成的导光板120位置偏移而使得导光板120的入光不均匀。
当所述压紧机构143的数目为三个时，为了方便描述，三个所述压紧机构143分别命名为第一压紧机构、第二压紧机构及第三压紧机构，所述第一压紧机构、所述第二压紧机构及所述第三压紧机构分别抵持在所述第二侧面122 上，所述第一压紧机构抵持在所述导光板120的第二侧面122的中央，所述第二压紧机构抵持在所述第二侧面122的位置与所述第三压紧机构抵持在所述第二侧面122的位置关于所述第一压紧机构抵持在所述第二侧面122上的位置对称。由此，所述第一压紧机构、所述第二压紧机构及所述第三压紧机构对所述导光板120施加的作用力是均匀的，以防止所述压紧机构对所述导光板120施加作用力不均匀而造成的导光板120损伤或者造成的导光板120位置偏移而使得所述导光板120的入光不均匀。
在本实施方式中，所述背光模组100还包括反射片150和至少一光学膜片160。所述反射片150设置于所述导光板120与所述背光板110的底板111之间。当所述光源130发出的光线自所述导光板120邻近所述反射片150的表面出射出来时，所述反射片150将自所述导光板120邻近所述反射片150的表面出射的光线反射到所述导光板120内，以减小光损失。所述导光板120还包括一出光面123，所述导光板120的出光面123与所述导光板120的入光面(即第一侧面121)相连，且所述出光面123为所述导光板123远离所述底板111的表面。自所述导光板120的入光面入射的光线自所述导光板120的出光面123出射，以将自光源130发出的光线转换为面光源。所述光学膜片160邻近所述导光板120的出光面123设置。在本实施方式中，三个所述光学膜片160层叠在一起，然后直接设置在所述导光板120的出光面123上。所谓直接设置是指所述光学膜片160与所述导光板120之间没有间隙。可以理解地，在其他实施方式中，所述光学膜片160可以不直接设置在所述导光板120的出光面123上，所述光学膜片160与所述导光板120的出光面123之间设置有间隙。所述光学膜片160用于使自所述导光板120的出光面123出射的光线更加均匀。
优选地，所述胶框140与所述导光板120的出光面123之间，所述胶框140与所述光源130之间，以及所述胶框140与其他元件(比如液晶面板)之间通过粘结结构170相连。所述粘结结构170用于固定所述胶框140与所述导光板120，所述胶框140与所属光源130，以及所述胶框140与其他元件。在一实施方式中，所述粘结结构170为双面胶。
在本发明液晶显示装置10中，由于所述背光模组100的胶框140上设置 有至少一压紧机构143，且所述压紧机构143抵持在所述导光板120的第二侧面122，以使所述导光板120的第一侧面121邻近所述光源130的出光面，因此，所述光源130发出的光线能够更多地进入到所述导光板120中，增大了所述导光板120的入光率。进一步地，由于所述压紧机构143与所述胶框140中的第四侧壁142一体成型，所述压紧机构143不会松动，从而起到更好地压紧效果。
以上所揭露的仅为本发明一种较佳实施例而已，当然不能以此来限定本发明之权利范围，本领域普通技术人员可以理解实现上述实施例的全部或部分流程，并依本发明权利要求所作的等同变化，仍属于发明所涵盖的范围。

Claims (10)

  1. 一种背光模组，其特征在于，所述背光模组包括背板、导光板、光源及胶框，所述背板用于收容所述导光板、所述光源及所述胶框，所述背板包括底板及沿所述底板两边向同一方向延伸的第一侧壁及第二侧壁，所述导光板邻近所述底板设置，所述导光板包括相对设置的第一侧面及第二侧面，所述第一侧面邻近所述光源设置以作为所述导光板的入光面，所述胶框设置于所述底板上，所述胶框包括第三侧壁及第四侧壁，所述第三侧壁设置在所述第一侧壁及所述光源之间，所述第四侧壁设置于所述第二侧壁及所述第二侧面之间，所述胶框还包括至少一压紧机构，所述压紧机构自所述第四侧壁向所述导光板的第二侧面延伸，且抵持在所述导光板的第二侧面，以使所述导光板的第一侧面邻近所述光源的出光面，且所述压紧机构与所述胶框一体成型。
  2. 如权利要求1所述的背光模组，其特征在于，所述压紧机构包括抵持部和连接部，所述抵持部抵持所述导光板的所述第二侧面，所述连接部连接所述胶框的第四侧壁与所述抵持部。
  3. 如权利要求1所述的背光模组，其特征在于，当所述压紧机构的数目大于或等于两个时，所述压紧机构抵持在所述导光板的位置为均匀排布的。
  4. 如权利要求3所述的背光模组，其特征在于，所述压紧机构的数目为三个，分别为第一压紧机构、第二压紧机构及第三压紧机构，所述第一压紧机构、所述第二压紧机构及所述第三压紧机构分别抵持在所述第二侧面上，所述第一压紧机构抵持在所述导光板的第二侧面的中央，所述第二压紧机构抵持在所述第二侧面上的位置与所述第三压紧机构抵持在所述第二侧面上的位置关于所述第一压紧机构抵持在所述第二侧面上的位置对称。
  5. 如权利要求1所述的背光模组，其特征在于，所述背光模组还包括反射片及至少一光学膜片，所述反射片设置于所述导光板与所述底板之间，所述光 学膜片邻近所述导光板的出光面设置。
  6. 一种液晶显示装置，所述液晶显示装置包括背光模组，其特征在于，所述背光模组包括背板、导光板、光源及胶框，所述背板用于收容所述导光板、所述光源及所述胶框，所述背板包括底板及沿所述底板两边向同一方向延伸的第一侧壁及第二侧壁，所述导光板邻近所述底板设置，所述导光板包括相对设置的第一侧面及第二侧面，所述第一侧面邻近所述光源设置以作为所述导光板的入光面，所述胶框设置于所述底板上，所述胶框包括第三侧壁及第四侧壁，所述第三侧壁设置在所述第一侧壁及所述光源之间，所述第四侧壁设置于所述第二侧壁及所述第二侧面之间，所述胶框还包括至少一压紧机构，所述压紧机构自所述第四侧壁向所述导光板的第二侧面延伸，且抵持在所述导光板的第二侧面，以使所述导光板的第一侧面邻近所述光源的出光面，且所述压紧机构与所述胶框一体成型。
  7. 如权利要求6所述的液晶显示装置，其特征在于，所述压紧机构包括抵持部和连接部，所述抵持部抵持所属导光板的所述第二侧面，所述连接部连接所述胶框的第四侧壁与所述抵持部。
  8. 如权利要求6所述的液晶显示装置，其特征在于，当所述压紧机构的数目大于或等于两个时，所述压紧机构抵持在所述导光板的位置为均匀排布的。
  9. 如权利要求8所述的液晶显示装置，其特征在于，所述压紧机构的数目为三个，分别为第一压紧机构、第二压紧机构及第三压紧机构，所述第一压紧机构、所述第二压紧机构及所述第三压紧机构分别抵持在所述第二侧面上，所述第一压紧机构抵持在所述导光板的第二侧面的中央，所述第二压紧机构抵持在所述第二侧面上的位置与所述第三压紧机构抵持在所述第二侧面上的位置关于所述第一压紧机构抵持在所述第二侧面上的位置对称。
  10. 如权利要求6所述的液晶显示装置，其特征在于，所述背光模组还包 括反射片及至少一光学膜片，所述反射片设置于所述导光板与所述底板之间，所述光学膜片邻近所述导光板的出光面设置。
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