WO2020199282A1 - 背光模组以及显示装置 - Google Patents

背光模组以及显示装置 Download PDF

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Publication number
WO2020199282A1
WO2020199282A1 PCT/CN2019/084179 CN2019084179W WO2020199282A1 WO 2020199282 A1 WO2020199282 A1 WO 2020199282A1 CN 2019084179 W CN2019084179 W CN 2019084179W WO 2020199282 A1 WO2020199282 A1 WO 2020199282A1
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WO
WIPO (PCT)
Prior art keywords
optical lens
transparent
supporting member
transparent supporting
backlight module
Prior art date
Application number
PCT/CN2019/084179
Other languages
English (en)
French (fr)
Inventor
常建宇
俞刚
苏赞加
丘永元
付琳琳
罗柱平
Original Assignee
惠州市华星光电技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 惠州市华星光电技术有限公司 filed Critical 惠州市华星光电技术有限公司
Publication of WO2020199282A1 publication Critical patent/WO2020199282A1/zh

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Classifications

    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336Illuminating devices
    • G02F1/133602Direct backlight
    • G02F1/133606Direct backlight including a specially adapted diffusing, scattering or light controlling members
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336Illuminating devices
    • G02F1/133602Direct backlight
    • G02F1/133608Direct backlight including particular frames or supporting means
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336Illuminating devices
    • G02F1/133602Direct backlight
    • G02F1/133606Direct backlight including a specially adapted diffusing, scattering or light controlling members
    • G02F1/133607Direct 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

Definitions

  • This application relates to the field of display technology, and in particular to a backlight module and a display device.
  • a support column 12 is provided on the substrate 11 to support the diffuser 13 to prevent the diffuser 13 from being deformed due to thermal contraction and expansion and vibration during transportation. .
  • the supporting column 12 blocks the light from the light source (such as an LED lamp) 14 and then forms a dark shadow on the diffuser plate 13.
  • the light source such as an LED lamp
  • the existing backlight module has the technical problem that the supporting column blocks the light to generate dark shadows.
  • the present application provides a backlight module and a display device, which can alleviate the technical problem of the existing backlight module that the supporting pillars block light and generate dark shadows.
  • An embodiment of the present application provides a backlight module, which includes:
  • a light source, the array is arranged on the substrate;
  • the optical lens corresponds to the light source one to one, covers the light source, and is arrayed on the substrate;
  • a transparent supporting member arranged on the optical lens for supporting the diffuser plate
  • the optical lenses located in the main force-receiving area are all provided with transparent supporting members, and the optical lenses located in other areas are provided with transparent supporting members according to preset rules.
  • the height of the transparent supporting member is the same.
  • the optical lens provided with the transparent support member is arranged alternately with the optical lens without the transparent support member.
  • the optical lens rows provided with the transparent support member are alternately arranged with the optical lens rows without the transparent support member.
  • the optical lens row provided with the transparent support member is arranged stepwise with the optical lens row without the transparent support member.
  • the transparent supporting member includes a first transparent supporting member and a second transparent supporting member, and the height of the first transparent supporting member is greater than the height of the second transparent supporting member.
  • the first transparent supporting member is arranged on the optical lens located in the main force-receiving area, and the second transparent supporting member is arranged on the optical lens located in other areas.
  • the optical lens provided with the first transparent support member is alternately provided with the optical lens provided with the second transparent support member.
  • the optical lenses provided with the first transparent supporting member are arranged alternately with the optical lens rows provided with the second transparent supporting member.
  • the optical lens provided with the first transparent supporting member and the optical lens provided with the second transparent supporting member are arranged in steps.
  • an embodiment of the present application provides a display device, which includes a display panel and a backlight module, the display panel is arranged in a light emitting direction of the backlight module, and the backlight module includes:
  • a light source, the array is arranged on the substrate;
  • the optical lens corresponds to the light source one to one, covers the light source, and is arrayed on the substrate;
  • a transparent supporting member arranged on the optical lens for supporting the diffuser plate
  • the optical lenses located in the main force-receiving area are all provided with transparent supporting members, and the optical lenses located in other areas are provided with transparent supporting members according to preset rules.
  • the height of the transparent supporting member is the same.
  • the optical lens provided with the transparent supporting member is arranged alternately with the optical lens without the transparent supporting member.
  • the optical lens rows provided with the transparent support member are alternately arranged with the optical lens rows without the transparent support member.
  • the optical lens row provided with the transparent support member is arranged stepwise with the optical lens row without the transparent support member.
  • the transparent supporting member includes a first transparent supporting member and a second transparent supporting member, and the height of the first transparent supporting member is greater than the height of the second transparent supporting member.
  • the first transparent supporting member is disposed on an optical lens located in the main force-receiving area
  • the second transparent supporting member is disposed on an optical lens located in other areas.
  • the optical lens provided with the first transparent supporting member is alternately provided with the optical lens provided with the second transparent supporting member.
  • the optical lenses provided with the first transparent supporting member are arranged alternately with the optical lens rows provided with the second transparent supporting member.
  • the optical lens provided with the first transparent supporting member and the optical lens provided with the second transparent supporting member are arranged in steps.
  • the present application provides a backlight module and a display device.
  • the supporting member of the backlight module is transparent and arranged on the optical lens, and the optical lens located in the main force-receiving area is provided with a transparent supporting member.
  • the lens is provided with a transparent supporting member according to a preset rule, which effectively alleviates the technical problem of the existing backlight module that the supporting column blocks the light to produce dark shadows, while improving the taste and module reliability, and reducing the production cost.
  • FIG. 1 is a schematic diagram of the structure of a conventional backlight module.
  • FIG. 2 is a schematic structural diagram of a backlight module provided by an embodiment of the application.
  • FIG. 3 is a schematic diagram of the first arrangement of optical lenses provided by an embodiment of the application.
  • FIG. 4 is a schematic diagram of a second arrangement of optical lenses provided by an embodiment of the application.
  • a substrate 11 there is a substrate 11, a support column 12 is provided on the substrate to support the diffuser plate 13, and a light source (LED lamp) 14 is provided on the substrate 11.
  • the LED lamp 14 is covered with an optical lens 15 for turning on the light-emitting type of the LED lamp.
  • the supporting column 12 is mainly used to prevent the diffusion plate 13 from being deformed due to thermal contraction and expansion and vibration during transportation, which may cause taste problems or damage the optical lens 15.
  • the supporting column 12 blocks the light from the light source (such as an LED lamp) 14 and then forms a dark shadow on the diffuser plate 13.
  • the light source such as an LED lamp
  • the existing backlight module has the technical problem that the supporting column blocks the light to generate dark shadows.
  • the present application provides the following embodiments to solve the technical problem.
  • the present application provides a backlight module, which includes a substrate 21, a diffusion plate 22, a light source 23, an optical lens 24, and a transparent support member 25.
  • the light source 23 is located in the accommodating cavity of the optical lens 24, and the transparent supporting member 25 is disposed on the light-emitting surface of the optical lens 24 and used to support the diffuser plate.
  • an arrangement form of the transparent supporting member is shown as 251 in FIG. 2, and the transparent supporting member 251 and the optical lens 24 are integrally formed.
  • the preparation material used for the transparent support member 251 is the same as the preparation material used for the optical lens 24, and both are acrylic, polycarbonate, glass, silicone plastic and the like.
  • the transparent support member 251 and the optical lens 24 may adopt a traditional one-piece injection molding method; it may also adopt a double-entry injection molding method, that is, the first glue inlet is located at the conventional glue inlet
  • the second glue inlet is located at the top of the transparent supporting member, the material injected from the first glue inlet contributes to the area below the lens, and the material injected from the second glue inlet contributes to the area above the lens.
  • FIG. 2 another arrangement form of the transparent supporting member is shown as 252 in FIG. 2, and the transparent supporting member 252 and the optical lens 24 are formed separately.
  • the preparation material used for the transparent support member 252 is different from the preparation material used for the optical lens 24, and the preparation material used for the optical lens 24 is acrylic, polycarbonate, glass, silicone plastic, etc., the transparent support member
  • the preparation materials used for 252 are silicone plastics, silicone resins and the like.
  • a glue injection method is used to form a groove with the optical lens 24, and a transparent support member is preset on the light-emitting surface of the optical lens;
  • the groove area forms a transparent support member 252 having a fixed size.
  • At least two transparent supporting members are provided on the same optical lens body, and the height of the transparent supporting members is the same.
  • the shape and height of the transparent supporting member are the same.
  • the shape of the transparent support member can be columnar, cone, or other shapes that can be used for support; the height of the transparent support member can be consistent with the height of the cavity, or it can be slightly smaller than the height of the cavity 1-2mm.
  • Multiple support members with the same shape and height can effectively reduce or disperse the stress of each support structure and improve system reliability.
  • At least one of the transparent support members has different shapes, but all the transparent support members have the same height, and the shape of the transparent support members may be columnar or cone. Or other shapes that can be used for support.
  • At least two transparent supporting members are provided on the same optical lens, a first transparent supporting member and a second transparent supporting member, the first transparent supporting member and the second transparent supporting member
  • the height of the supporting members is different.
  • the height of the first transparent support member may be the same as the height of the cavity, or may be slightly smaller than the height of the cavity by 1-2mm, and the height of the second transparent support member is greater than the height of the first transparent support member low.
  • the first transparent supporting member and the second transparent supporting member are divided into a main supporting member and an auxiliary supporting member.
  • the transparent supporting member with a higher height is the main supporting member, and the transparent supporting member with a lower height is the component is an auxiliary support component.
  • the main support member can effectively support the height of the cavity.
  • the auxiliary support member can further support the height of the cavity.
  • the shape of the first transparent support member and the shape of the second transparent support member are the same.
  • the shape of the transparent support member can be columnar, cone, or other shapes that can be used for support.
  • the shape of the first transparent supporting member is different from the shape of the second transparent supporting member, and the shape of the transparent supporting member may be cylindrical or tapered, Or other shapes that can be used for support.
  • the height of the transparent support member is higher than the height of the light exit surface of the optical lens
  • the shape of the transparent support member is also the shape that exceeds the light exit surface of the optical lens
  • the backlight module of the present application there may be at least one optical lens provided with only one transparent support member.
  • the height of the transparent support member may be in contact with the diffuser plate or be 1 ⁇ 2mm lower than the diffuser plate, or it may be much lower than the diffuser plate; the shape of the transparent support member may be cylindrical, tapered, or Other shapes that can be used for support.
  • FIG. 3 a distribution diagram of a preferred embodiment of the optical lens is shown in FIG. 3, the heights of the transparent support members are the same, and the heights of the transparent support members It can be in contact with the diffuser or 1 ⁇ 2mm lower than the diffuser.
  • the optical lens is located in the main force-receiving area where the force is concentrated, and the optical lens is provided with a transparent support member; in other areas, the optical lens is provided with a transparent support member, and the optical lens is not provided with a transparent support member.
  • the optical lenses are staggered.
  • the main force-receiving area refers to the area where the force is relatively concentrated. These areas are easily deformed by the force, such as the central area of the backlight module, while other areas are the edge areas surrounding the main force-receiving area.
  • the optical lens is located in the main force-receiving area where the force is more concentrated, and the optical lens is provided with a transparent support member; in other areas, the optical lens row is provided with a transparent support member, and the transparent support member is not provided.
  • the optical lens columns are staggered.
  • the optical lens is located in the main force-receiving area where the force is more concentrated, and the optical lens is provided with a transparent support member; in other areas, the optical lens row is provided with a transparent support member, and the transparent support member is not provided.
  • the optical lens column is arranged in a ladder.
  • the distance between the optical lens provided with the transparent supporting member and the optical lens without the transparent supporting member may be set according to a preset value, and the distance may be equal or unequal.
  • the number of optical lenses provided with the transparent supporting member can be reduced, which not only increases the reliability of the module, but also further reduces the influence of the transparent supporting member on the light emission characteristics of the light.
  • the distribution diagram of another preferred embodiment of the optical lens is shown in FIG. 4, and the transparent supporting member includes a first transparent supporting member and a second transparent supporting member.
  • the height of the first transparent supporting member is greater than the height of the second transparent supporting member.
  • the transparent support member provided on the optical lens in the main force-receiving area where the force is concentrated is the first transparent support member
  • the transparent support member provided on the optical lens in the other area is the second transparent support member.
  • Transparent supporting member that is, the first transparent supporting member is arranged on the optical lens located in the main force-receiving area, and the second transparent supporting member is arranged on the optical lens located in other areas.
  • the optical lens provided with the first transparent support member is alternately provided with the optical lens provided with the second transparent support member.
  • the optical lenses provided with the first transparent supporting member are arranged alternately with the optical lens rows provided with the second transparent supporting member.
  • the optical lens provided with the first transparent support member and the optical lens provided with the second transparent support member are arranged in steps.
  • the first transparent supporting member is used to support the height of the cavity. Normally, the second transparent supporting member is far away from the diffuser. When the first transparent supporting member fails due to environmental or external forces, The second transparent supporting member can further support the height of the cavity, and avoid serious quality problems caused by the complete collapse of the diffuser plate.
  • an embodiment of the present application also provides a display device, which includes a display panel and the backlight module provided in the present application, the display panel is arranged in the light emitting direction of the backlight module, and the backlight module includes :Substrate; diffuser plate; light source, the array is arranged on the substrate; the optical lens, corresponding to the light source, covers the light source, and the array is arranged on the substrate; the transparent support member is arranged on the optical On the lens, for supporting the diffuser plate;
  • the optical lenses located in the main force-receiving area are all provided with transparent supporting members, and the optical lenses located in other areas are provided with transparent supporting members according to preset rules.
  • the heights of the transparent supporting members are the same.
  • the optical lens provided with the transparent support member is arranged alternately with the optical lens without the transparent support member.
  • the optical lens rows provided with transparent support members are alternately arranged with the optical lens rows without transparent support members.
  • the optical lens row provided with the transparent support member is arranged stepwise with the optical lens row without the transparent support member.
  • the transparent supporting member includes a first transparent supporting member and a second transparent supporting member, and the height of the first transparent supporting member is greater than the height of the second transparent supporting member.
  • the first transparent supporting member is provided on the optical lens located in the main force-receiving area.
  • the transparent supporting member is the first transparent supporting member.
  • the second transparent supporting member is provided on the optical lens located in the other area.
  • the transparent supporting member is the second transparent supporting member.
  • the optical lens provided with the first transparent support member and the optical lens provided with the second transparent support member are located in the main force-receiving area.
  • the transparent supporting member provided on the lens is the first transparent supporting member, and the transparent supporting member provided on the optical lens in other regions is the first transparent supporting member and the second transparent supporting member alternately arranged.
  • the optical lens provided with the first transparent support member and the optical lens provided with the second transparent support member are located in the main force-receiving area.
  • the transparent supporting member provided on the lens is the first transparent supporting member, and the transparent supporting member provided on the optical lens located in other regions is the first transparent supporting member and the second transparent supporting member arranged alternately.
  • the optical lens provided with the first transparent supporting member and the optical lens provided with the second transparent supporting member are arranged in steps.
  • the display panel includes a liquid crystal display panel.
  • the present application provides a backlight module and a display device.
  • the supporting member of the backlight module is transparent and arranged on the optical lens, and the optical lens located in the main force-receiving area is provided with a transparent supporting member.
  • the lens is provided with a transparent supporting member according to a preset rule, which effectively alleviates the technical problem of the existing backlight module that the supporting column blocks the light to produce dark shadows, while improving the taste and module reliability, and reducing the production cost.

Abstract

一种背光模组以及显示装置,其背光模组位于主受力区域内的光学透镜(24)上均设置有透明支撑构件(25),位于其他区域内的光学透镜(24)按照预设规则设置有透明支撑构件(25);有效缓解了现有背光模组存在支撑柱阻挡光线产生暗影的技术问题,同时提升了品味及模组可靠性,降低了生产成本。

Description

背光模组以及显示装置 技术领域
本申请涉及显示技术领域,尤其涉及一种背光模组以及显示装置。
背景技术
如图1所示,在现有的直下式LED背光模组中,基板11上设置有支撑柱12,以支撑扩散板13,防止扩散板13由于冷热缩胀、运输过程中振荡而引起形变。
但是,支撑柱12对光源(如LED灯)14的光线产生阻挡,进而在扩散板13上形成暗影。
所以,现有背光模组存在支撑柱阻挡光线产生暗影的技术问题。
技术问题
本申请提供一种背光模组以及显示装置,能够缓解现有背光模组存在支撑柱阻挡光线产生暗影的技术问题。
技术解决方案
为了缓解上述技术问题,本申请提供的技术方案如下:
本申请实施例提供一种背光模组,其包括:
基板;
扩散板;
光源,阵列设置在所述基板上;
光学透镜,与所述光源一一对应,覆盖所述光源,且阵列设置在所述基板上;
透明支撑构件,设置于所述光学透镜上,用于支撑所述扩散板;
其中,位于主受力区域内的光学透镜上均设置有透明支撑构件,位于其他区域内的光学透镜按照预设规则设置有透明支撑构件。
在本申请实施例提供的背光模组中,所述透明支撑构件的高度相同。
在本申请实施例提供的背光模组中,所述其他区域内,设置有透明支撑构件的光学透镜,与未设置透明支撑构件的光学透镜交错设置。
在本申请实施例提供的背光模组中,所述其他区域内,设置有透明支撑构件的光学透镜列,与未设置透明支撑构件的光学透镜列交错设置。
在本申请实施例提供的背光模组中,所述其他区域内,设置有透明支撑构件的光学透镜列,与未设置透明支撑构件的光学透镜列阶梯设置。
在本申请实施例提供的背光模组中,所述透明支撑构件包括第一透明支撑构件和第二透明支撑构件,第一透明支撑构件的高度大于第二透明支撑构件的高度。
在本申请实施例提供的背光模组中,所述第一透明支撑构件设置在位于主受力区域内的光学透镜上,所述第二透明支撑构件设置在位于其他区域内的光学透镜上。
在本申请实施例提供的背光模组中,设置有所述第一透明支撑构件的光学透镜,与设置有所述第二透明支撑构件的光学透镜交错设置。
在本申请实施例提供的背光模组中,设置有所述第一透明支撑构件的光学透镜,与设置有所述第二透明支撑构件的光学透镜列交错设置。
在本申请实施例提供的背光模组中,设置有所述第一透明支撑构件的光学透镜,与设置有所述第二透明支撑构件的光学透镜列阶梯设置。
同时,本申请实施例提供一种显示装置,其包括显示面板、以及背光模组,所述显示面板设置在所述背光模组的出光方向上,所述背光模组包括:
基板;
扩散板;
光源,阵列设置在所述基板上;
光学透镜,与所述光源一一对应,覆盖所述光源,且阵列设置在所述基板上;
透明支撑构件,设置于所述光学透镜上,用于支撑所述扩散板;
其中,位于主受力区域内的光学透镜上均设置有透明支撑构件,位于其他区域内的光学透镜按照预设规则设置有透明支撑构件。
在本申请实施例提供的显示装置中,所述透明支撑构件的高度相同。
在本申请实施例提供的显示装置中,所述其他区域内,设置有透明支撑构件的光学透镜,与未设置透明支撑构件的光学透镜交错设置。
在本申请实施例提供的显示装置中,所述其他区域内,设置有透明支撑构件的光学透镜列,与未设置透明支撑构件的光学透镜列交错设置。
在本申请实施例提供的显示装置中,所述其他区域内,设置有透明支撑构件的光学透镜列,与未设置透明支撑构件的光学透镜列阶梯设置。
在本申请实施例提供的显示装置中,所述透明支撑构件包括第一透明支撑构件和第二透明支撑构件,第一透明支撑构件的高度大于第二透明支撑构件的高度。
在本申请实施例提供的显示装置中,所述第一透明支撑构件设置在位于主受力区域内的光学透镜上,所述第二透明支撑构件设置在位于其他区域内的光学透镜上。
在本申请实施例提供的显示装置中,设置有所述第一透明支撑构件的光学透镜,与设置有所述第二透明支撑构件的光学透镜交错设置。
在本申请实施例提供的显示装置中,设置有所述第一透明支撑构件的光学透镜,与设置有所述第二透明支撑构件的光学透镜列交错设置。
在本申请实施例提供的显示装置中,设置有所述第一透明支撑构件的光学透镜,与设置有所述第二透明支撑构件的光学透镜列阶梯设置。
有益效果
本申请提供一种背光模组以及显示装置,其背光模组的支撑构件透明且设置在光学透镜上,位于主受力区域内的光学透镜上均设置有透明支撑构件,位于其他区域内的光学透镜按照预设规则设置有透明支撑构件,有效缓解了现有背光模组存在支撑柱阻挡光线产生暗影的技术问题,同时提升了品味及模组可靠性,降低了生产成本。
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为现有背光模组的结构示意图。
图2为本申请实施例提供的背光模组的结构示意图。
图3为本申请实施例提供的光学透镜的第一排布示意图。
图4为本申请实施例提供的光学透镜的第二排布示意图。
本发明的实施方式
下面将结合本申请的具体实施方案,对本申请实施方案和/或实施例中的技术方案进行清楚、完整的描述,显而易见的,下面所描述的实施方案和/或实施例仅仅是本申请一部分实施方案和/或实施例,而不是全部的实施方案和/或实施例。基于本申请中的实施方案和/或实施例,本领域普通技术人员在没有做出创造性劳动前下所获得的所有其他实施方案和/或实施例,都属于本申请保护范围。
本申请所提到的方向用语,例如[上]、[下]、[左]、[右]、[前] 、[后] 、[内] 、[外] 、[侧]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和理解本申请,而非用以限制本申请。术语“第一”、“第二”等仅用于描述目的,而不能理解为指示或是暗示其相对重要性或者隐含指明所指示的技术特征的数量。由此,限定有“第一”、“第二”等的特征可以明示或者隐含地包括一个或者更多个该特征。
如图1所示,在现有的直下式LED背光模组中,有基板11,在基板上设置有支撑柱12,用于支撑扩散板13,基板11上设置有光源(LED灯)14,在所述LED灯14上包覆有光学透镜15,用于将LED灯出光光型打开。
所述支撑柱12主要用于防止所述扩散板13,由于冷热缩胀、运输过程中震荡而引起的形变,造成品味问题或者击伤光学透镜15。
但是,支撑柱12对光源(如LED灯)14的光线产生阻挡,进而在扩散板13上形成暗影。
所以,现有背光模组存在支撑柱阻挡光线产生暗影的技术问题。
针对现有背光模组存在支撑柱阻挡光线产生暗影的技术问题,本申请提供以下实施例以解决该技术问题。
在一种实施例中,如图2所示,本申请提供一种背光模组,包括基板21、扩散板22、光源23和光学透镜24和透明支撑构件25。所述光源23位于所述光学透镜24的容纳腔内,所述透明支撑构件25设置于所述光学透镜24的出光面上,用于支撑所述扩散板。
在一种实施例中,所述透明支撑构件的一种设置形式如图2中的251所示,所述透明支撑构件251与所述光学透镜24一体成型。所述透明支撑构件251所用的制备材料与所述光学透镜24所用的制备材料相同,均为亚克力,聚碳酸酯,玻璃,有机硅塑料等。
在一种实施例中,所述透明支撑构件251和所述光学透镜24可以采用传统的一体注塑成型方式;也可以采用双入胶口注塑成型方式,即第一入胶口位于常规入胶口位置,第二入胶口位于透明支撑构件顶端,从所述第一入胶口注入的材料贡献透镜下方区域,从所述第二入胶口注入的材料贡献透镜上方区域。
在一种实施例中,所述透明支撑构件的另一种设置形式如图2中的252所示,所述透明支撑构件252与所述光学透镜24分别成型。所述透明支撑构件252所用的制备材料与所述光学透镜24所用的制备材料不同,所述光学透镜24所用的制备材料为亚克力、聚碳酸酯、玻璃、有机硅塑料等,所述透明支撑构件252的所用的制备材料为有机硅塑料、硅树脂等。
在一种实施例中,采用注胶法形成带有所述光学透镜24,所述光学透镜出光面上预设透明支撑构件的凹槽;再采用点胶方式,通过控制胶量,在所述凹槽区域形成具有固定尺寸的透明支撑构件252。
在一种实施例中,同一个所述光学透镜本体上,设置有至少两个所述透明支撑构件,且所述透明支撑构件的高度都相同。
在一种实施例中,所述透明支撑构件的形状和高度都相同。所述透明支撑构件的形状可以是柱形、锥形,或是其它能够用于支撑的形状;所述透明支撑构件的高度可以与腔体的高度保持一致,也可以比腔体的高度略小1-2mm。
多个形状和高度都相同的支撑构件可以有效减轻或分散每个支撑结构的应力,提升系统可靠性。
在一种实施例中,所述透明支撑构件中的至少有一个透明支撑构件的形状不相同,但所有透明支撑构件的高度都相同,所述透明支撑构件的形状可以是柱形、锥形,或是其它能够用于支撑的形状。
在一种实施例中,同一个所述光学透镜上设置有至少两个所述透明支撑构件,第一透明支撑构件和第二透明支撑构件,所述第一透明支撑构件和所述第二透明支撑构件高度不同。
所述第一透明支撑构件的高度可以与腔体的高度保持一致,也可以比腔体的高度略小1-2mm,所述第二透明支撑构件的高度比所述第一透明支撑构件的高度低。
根据所述第一透明支撑构件和所述第二透明支撑构件高度的不同,将其分为主支撑构件和辅助支撑构件,高度较高的透明支撑构件为主支撑构件,高度较低的透明支撑构件为辅助支撑构件。
其中,所述主支撑构件可有效起到支撑腔体高度的作用,当所述主支撑构件由于环境或外力因素失效的情况发生,所述辅助支撑构件能够进一步起到支撑腔体高度的作用。
在一种实施例中,所述第一透明支撑构件的形状和所述第二透明支撑构件的形状相同。所述透明支撑构件的形状可以是柱形、锥形,或是其它能够用于支撑的形状。
在一种实施例中,所述透明支撑构件中,所述第一透明支撑构件的形状和所述第二透明支撑构件的形状不同,所述透明支撑构件的形状可以是柱形、锥形,或是其它能够用于支撑的形状。
在以上两个实施例中,所述透明支撑构件的高度均为超出所述光学透镜出光面的高度,所述透明支撑构件的形状也均为超出光学透镜出光面的形状。
在一种实施例中,在本申请的背光模组中,可以存在至少一个光学透镜上没有设置所述透明支撑构件。
在一种实施例中,在本申请的背光模组中,可以存在至少一个光学透镜上仅设置有一个所述透明支撑构件。所述透明支撑构件的高度可以与所述扩散板接触或是比所述扩散板低1~2mm,也可以比扩散板低许多;所述透明支撑构件的形状可以柱形、锥形,或是其它能够用于支撑的形状。
在一种实施例中,在本申请的背光模组中,光学透镜的一种优选实施例的分布图如图3所示,所述透明支撑构件的高度都相同,所述透明支撑构件的高度可以与所述扩散板接触或是比所述扩散板低1~2mm。
在一种实施例中,位于受力较为集中的主受力区域内,光学透镜上均设置有透明支撑构件;位于其他区域内,设置有透明支撑构件的光学透镜,与未设置透明支撑构件的光学透镜交错设置。
在一种实施例中,主受力区域是指受力较为集中的区域,这些区域容易受力形变,如背光模组的中心区域,而其他区域则是围绕主受力区域的边缘区域。
在一种实施例中,位于受力较为集中的主受力区域内,光学透镜上均设置有透明支撑构件;位于其他区域内,设置有透明支撑构件的光学透镜列,与未设置透明支撑构件的光学透镜列交错设置。
在一种实施例中,位于受力较为集中的主受力区域内,光学透镜上均设置有透明支撑构件;位于其他区域内,设置有透明支撑构件的光学透镜列,与未设置透明支撑构件的光学透镜列阶梯设置。
所述设置有透明支撑构件的光学透镜与所述未设置透明支撑构件的光学透镜之间的间距,可以根据预设值设置,可以等间距,也可以不等间距。
如此,可以减少设置有透明支撑构件的光学透镜的数量,不仅可以增加模组的可靠性,更进一步减少透明支撑构件对光线的出光特性的影响。
在一种实施例中,在本申请的背光模组中,光学透镜的另一种优选实施例的分布图如图4所示,所述透明支撑构件包括第一透明支撑构件和第二透明支撑构件,第一透明支撑构件的高度大于第二透明支撑构件的高度。
在一种实施例中,位于受力较为集中的主受力区域内的光学透镜上设置的透明支撑构件为第一透明支撑构件,位于其他区域内的光学透镜上设置的透明支撑构件为第二透明支撑构件;即所述第一透明支撑构件设置在位于主受力区域内的光学透镜上,所述第二透明支撑构件设置在位于其他区域内的光学透镜上。
在一种实施例中,设置有所述第一透明支撑构件的光学透镜,与设置有所述第二透明支撑构件的光学透镜交错设置。
在一种实施例中,设置有所述第一透明支撑构件的光学透镜,与设置有所述第二透明支撑构件的光学透镜列交错设置。
在一种实施例中,设置有所述第一透明支撑构件的光学透镜,与设置有所述第二透明支撑构件的光学透镜列阶梯设置。
所述第一透明支撑构件用于支撑腔体高度,正常情况下,第二透明支撑构件与所述扩散板距离较远,当所述第一透明支撑构件由于环境或外力因素失效的情况发生,所述第二透明支撑构件能够进一步起到支撑腔体高度的作用,避免扩散板完全塌陷带来严重的品质问题。
如此,不仅可以增加模组的可靠性,同时进一步减轻了透明支撑构件带来的暗影问题。
同时,本申请实施例还提供了一种显示装置,其包括显示面板、以及本申请提供的背光模组,所述显示面板设置在所述背光模组的出光方向上,所述背光模组包括:基板;扩散板;光源,阵列设置在所述基板上;光学透镜,与所述光源一一对应,覆盖所述光源,且阵列设置在所述基板上;透明支撑构件,设置于所述光学透镜上,用于支撑所述扩散板;
其中,位于主受力区域内的光学透镜上均设置有透明支撑构件,位于其他区域内的光学透镜按照预设规则设置有透明支撑构件。
在一种实施例中,在本申请提供的显示装置中,所述透明支撑构件的高度相同。
在一种实施例中,在本申请提供的显示装置中,所述其他区域内,设置有透明支撑构件的光学透镜,与未设置透明支撑构件的光学透镜交错设置。
在一种实施例中,在本申请提供的显示装置中,所述其他区域内,设置有透明支撑构件的光学透镜列,与未设置透明支撑构件的光学透镜列交错设置。
在一种实施例中,在本申请提供的显示装置中,所述其他区域内,设置有透明支撑构件的光学透镜列,与未设置透明支撑构件的光学透镜列阶梯设置。
在一种实施例中,在本申请提供的显示装置中,所述透明支撑构件包括第一透明支撑构件和第二透明支撑构件,第一透明支撑构件的高度大于第二透明支撑构件的高度。
在一种实施例中,在本申请提供的显示装置中,所述第一透明支撑构件设置在位于主受力区域内的光学透镜上设置的透明支撑构件为第一透明支撑构件,所述第二透明支撑构件设置在位于其他区域内的光学透镜上设置的透明支撑构件为第二透明支撑构件。
在一种实施例中,在本申请提供的显示装置中,设置有所述第一透明支撑构件的光学透镜,与设置有所述第二透明支撑构件的光学透镜位于主受力区域内的光学透镜上设置的透明支撑构件为第一透明支撑构件,位于其他区域内的光学透镜上设置的透明支撑构件为第一透明支撑构件和第二透明支撑构件交错设置。
在一种实施例中,在本申请提供的显示装置中,设置有所述第一透明支撑构件的光学透镜,与设置有所述第二透明支撑构件的光学透镜位于主受力区域内的光学透镜上设置的透明支撑构件为第一透明支撑构件,位于其他区域内的光学透镜上设置的透明支撑构件为第一透明支撑构件和第二透明支撑构件列交错设置。
在一种实施例中,在本申请提供的显示装置中,设置有所述第一透明支撑构件的光学透镜,与设置有所述第二透明支撑构件的光学透镜列阶梯设置。
在一种实施例中,所述显示面板包括液晶显示面板。
根据上述实施例可知:
本申请提供一种背光模组以及显示装置,其背光模组的支撑构件透明且设置在光学透镜上,位于主受力区域内的光学透镜上均设置有透明支撑构件,位于其他区域内的光学透镜按照预设规则设置有透明支撑构件,有效缓解了现有背光模组存在支撑柱阻挡光线产生暗影的技术问题,同时提升了品味及模组可靠性,降低了生产成本。
综上所述,虽然本申请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申请,本领域的普通技术人员,在不脱离本申请的精神和范围内,均可作各种更动与润饰,因此本申请的保护范围以权利要求界定的范围为准。

Claims (20)

  1. 一种背光模组,其包括:
    基板;
    扩散板;
    光源,阵列设置在所述基板上;
    光学透镜,与所述光源一一对应,覆盖所述光源,且阵列设置在所述基板上;
    透明支撑构件,设置于所述光学透镜上,用于支撑所述扩散板;
    其中,位于主受力区域内的光学透镜上均设置有透明支撑构件,位于其他区域内的光学透镜按照预设规则设置有透明支撑构件。
  2. 如权利要求1所述的背光模组,其中,所述透明支撑构件的高度相同。
  3. 如权利要求2所述的背光模组,其中,所述其他区域内,设置有透明支撑构件的光学透镜,与未设置透明支撑构件的光学透镜交错设置。
  4. 如权利要求2所述的背光模组,其中,所述其他区域内,设置有透明支撑构件的光学透镜列,与未设置透明支撑构件的光学透镜列交错设置。
  5. 如权利要求2所述的背光模组,其中,所述其他区域内,设置有透明支撑构件的光学透镜列,与未设置透明支撑构件的光学透镜列阶梯设置。
  6. 如权利要求1所述的背光模组,其中,所述透明支撑构件包括第一透明支撑构件和第二透明支撑构件,第一透明支撑构件的高度大于第二透明支撑构件的高度。
  7. 如权利要求6所述的背光模组,其中,所述第一透明支撑构件设置在位于主受力区域内的光学透镜上,所述第二透明支撑构件设置在位于其他区域内的光学透镜上。
  8. 如权利要求6所述的背光模组,其中,设置有所述第一透明支撑构件的光学透镜,与设置有所述第二透明支撑构件的光学透镜交错设置。
  9. 如权利要求6所述的背光模组,其中,设置有所述第一透明支撑构件的光学透镜,与设置有所述第二透明支撑构件的光学透镜列交错设置。
  10. 如权利要求6所述的背光模组,其中,设置有所述第一透明支撑构件的光学透镜,与设置有所述第二透明支撑构件的光学透镜列阶梯设置。
  11. 一种显示装置,其包括显示面板、以及背光模组,所述显示面板设置在所述背光模组的出光方向上,所述背光模组包括:
    基板;
    扩散板;
    光源,阵列设置在所述基板上;
    光学透镜,与所述光源一一对应,覆盖所述光源,且阵列设置在所述基板上;
    透明支撑构件,设置于所述光学透镜上,用于支撑所述扩散板;
    其中,位于主受力区域内的光学透镜上均设置有透明支撑构件,位于其他区域内的光学透镜按照预设规则设置有透明支撑构件。
  12. 如权利要求11所述的显示装置,其中,所述透明支撑构件的高度相同。
  13. 如权利要求12所述的显示装置,其中,所述其他区域内,设置有透明支撑构件的光学透镜,与未设置透明支撑构件的光学透镜交错设置。
  14. 如权利要求12所述的显示装置,其中,所述其他区域内,设置有透明支撑构件的光学透镜列,与未设置透明支撑构件的光学透镜列交错设置。
  15. 如权利要求12所述的显示装置,其中,所述其他区域内,设置有透明支撑构件的光学透镜列,与未设置透明支撑构件的光学透镜列阶梯设置。
  16. 如权利要求11所述的显示装置,其中,所述透明支撑构件包括第一透明支撑构件和第二透明支撑构件,第一透明支撑构件的高度大于第二透明支撑构件的高度。
  17. 如权利要求16所述的显示装置,其中,所述第一透明支撑构件设置在位于主受力区域内的光学透镜上,所述第二透明支撑构件设置在位于其他区域内的光学透镜上。
  18. 如权利要求16所述的显示装置,其中,设置有所述第一透明支撑构件的光学透镜,与设置有所述第二透明支撑构件的光学透镜交错设置。
  19. 如权利要求16所述的显示装置,其中,设置有所述第一透明支撑构件的光学透镜,与设置有所述第二透明支撑构件的光学透镜列交错设置。
  20. 如权利要求16所述的显示装置,其中,设置有所述第一透明支撑构件的光学透镜,与设置有所述第二透明支撑构件的光学透镜列阶梯设置。
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