WO2020237718A1 - 一种背光模组、显示装置 - Google Patents

一种背光模组、显示装置 Download PDF

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Publication number
WO2020237718A1
WO2020237718A1 PCT/CN2019/090567 CN2019090567W WO2020237718A1 WO 2020237718 A1 WO2020237718 A1 WO 2020237718A1 CN 2019090567 W CN2019090567 W CN 2019090567W WO 2020237718 A1 WO2020237718 A1 WO 2020237718A1
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WO
WIPO (PCT)
Prior art keywords
guide plate
light guide
backlight module
grooved portion
plastic frame
Prior art date
Application number
PCT/CN2019/090567
Other languages
English (en)
French (fr)
Inventor
周政
Original Assignee
武汉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 武汉华星光电技术有限公司 filed Critical 武汉华星光电技术有限公司
Priority to US16/613,430 priority Critical patent/US10859761B1/en
Publication of WO2020237718A1 publication Critical patent/WO2020237718A1/zh

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • G02B6/0086—Positioning aspects
    • G02B6/0088—Positioning aspects of the light guide or other optical sheets in the package
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements

Definitions

  • This application relates to the field of display technology, and in particular to a backlight module and a display device.
  • the vehicle display module usually uses multiple rubber blocks to hold the light guide plate to limit the position.
  • the present application provides a backlight module and a display device, which can solve the problems of abnormal sound generated by the light guide plate hitting the side wall when the backlight module shakes in the existing vehicle display device and the optical defect caused by the scratch of the light guide plate mesh point, and solve the problem of the light guide plate assembly Poor accuracy and complicated procedures.
  • the present application provides a backlight module, which includes a plastic frame, a light source, a light guide plate, and an optical film located in the plastic frame;
  • At least two side walls of the plastic frame are provided with elastic structures, the elastic structures are in contact with the light guide plate and the side walls of the optical film, and are formed with the light guide plate and the optical film A positive fit, so that the light guide plate and the optical film are fixed in the plastic frame.
  • the elastic structure and the rubber frame are integrally designed, and the elastic structure includes a protrusion and a grooved portion corresponding to the protrusion, and the protrusion is located at the
  • the plastic frame is located on the side wall on one side of the light guide plate, and the opening of the grooved portion is located at the top of the plastic frame.
  • one of the grooved portions corresponds to at least one of the protrusions, and in the length extension direction of the grooved portion, the length of the grooved portion is greater than or equal to the protrusion The length of the section.
  • the depth of the grooved portion is greater than or equal to the width of the convex portion.
  • the distance between the border of the plastic frame on the side close to the light guide plate and the groove is less than or equal to the distance from the border of the plastic frame on the side far from the light guide plate to the groove The distance of the groove.
  • the cross-sectional shape of the protrusion is one or any combination of more than one of rectangle, trapezoid, and arc.
  • a rounded corner is formed between the inner wall of the grooved portion close to the light guide plate and the adjacent inner wall.
  • the side wall of the light guide plate contacts the protrusion of the elastic structure, and the protrusion is pressed by the light guide plate Offset to one side of the grooved portion, the grooved portion is deformed, so that the elastic structure and the light guide plate form an interference fit.
  • the side wall of the optical film is in contact with the protrusion of the elastic structure, and the protrusion is affected by the optical film.
  • the squeeze shifts to one side of the grooved portion, and the grooved portion is deformed, so that the elastic structure and the optical film form an interference fit.
  • the present application also provides a backlight module, which includes a plastic frame, a light source, a light guide plate and an optical film located in the plastic frame;
  • An elastic structure is provided on the plastic frame, and the elastic structure is in contact with the side wall of the light guide plate and forms an interference fit with the light guide plate to fix the light guide plate in the plastic frame.
  • the elastic structure and the rubber frame are integrally designed, and the elastic structure includes a protrusion and a grooved portion corresponding to the protrusion, and the protrusion is located at the
  • the plastic frame is located on the side wall on one side of the light guide plate, and the opening of the grooved portion is located at the top of the plastic frame.
  • one of the grooved portions corresponds to at least one of the protrusions, and in the length extension direction of the grooved portion, the length of the grooved portion is greater than or equal to the protrusion The length of the section.
  • the depth of the grooved portion is greater than or equal to the width of the convex portion.
  • the distance between the border of the plastic frame on the side close to the light guide plate and the groove is less than or equal to the distance from the border of the plastic frame on the side far from the light guide plate to the groove The distance of the groove.
  • the cross-sectional shape of the protrusion is one or any combination of more than one of rectangle, trapezoid, and arc.
  • a rounded corner is formed between the inner wall of the grooved portion close to the light guide plate and the adjacent inner wall.
  • the side wall of the light guide plate contacts the protrusion of the elastic structure, and the protrusion is pressed by the light guide plate Offset to one side of the grooved portion, the grooved portion is deformed, so that the elastic structure and the light guide plate form an interference fit.
  • the present application also provides a display device, including a display panel and the above-mentioned backlight module.
  • the beneficial effect of the present application is that compared with the existing vehicle-mounted display device, the backlight module and the display device provided by the present application form an elastic structure by designing a convex portion and a grooved portion on the plastic frame, and the elastic structure and the guide When the side walls of the light plate are in contact, the protruding part is squeezed by the light guide plate and the grooved part is deformed, so that the elastic structure and the light guide plate form an interference fit to realize the limit fixing of the light guide plate.
  • FIG. 1 is a schematic structural diagram of a backlight module provided by an embodiment of the application
  • FIG. 2 is a schematic structural diagram of the elastic structure of the backlight module provided by an embodiment of the application before being deformed;
  • FIG. 3 is a schematic structural diagram of the elastic structure of the backlight module provided by an embodiment of the application after being deformed.
  • This application is directed to the existing vehicle-mounted display device.
  • the backlight module is shaken, the light guide plate hits the side wall to generate abnormal noise and the light guide plate mesh points are scratched to cause optical defects, and the light guide plate assembly accuracy is poor, and the process is complicated.
  • This embodiment can solve this defect.
  • the backlight module provided in the present application is suitable for vehicle-mounted display devices, but is not limited to this, and can also be applied to mobile electronic equipment or wearable electronic equipment and other display devices.
  • FIG. 1 it is a schematic structural diagram of a backlight module provided by an embodiment of this application.
  • the backlight module provided in this embodiment may be an edge-type backlight module or a direct-type backlight module.
  • the backlight module includes: a plastic frame 10, a light source 20 located in the plastic frame 10, a light guide plate 30, and an optical film (not shown).
  • the plastic frame 10 is provided with an elastic structure 100, the elastic structure 100 is in contact with the side wall of the light guide plate 30, and the elastic structure 100 and the light guide plate 30 form an interference fit, so that the guide plate 30 The light board 30 is fixed in the plastic frame 10.
  • the elastic structure 100 and the rubber frame 10 are integrally designed.
  • the elastic structure 100 includes a protrusion 101 and a grooved portion 102 corresponding to the protrusion 101, and the protrusion 101 is located at the On the side wall (side) of the plastic frame 10 close to the light guide plate 30, the grooved portion 102 is located inside the plastic frame 10, and the opening of the grooved portion 102 is located on the plastic frame 10. the top of.
  • the backlight module is used to align with the display panel, and the top of the plastic frame 10 is the side where the backlight module and the display panel are attached.
  • one protruding portion 101 corresponds to one grooved portion 102, thereby forming the elastic structure 100.
  • the length of the grooved portion 102 is greater than or equal to the length of the protruding portion 101.
  • the depth of the grooved portion 102 is greater than or equal to the width of the convex portion 101. That is, in the direction from the light guide plate 30 to the side of the plastic frame 10, the projection of the protrusion 101 on the side wall of the plastic frame 10 falls into the grooved portion 102 in the Within the projection range on the side wall of the plastic frame 10. Of course, it is not limited to this.
  • the projection of the protrusion 101 on the side wall of the plastic frame 10 is located in the grooved portion 102 is at the middle position of the projection on the side wall of the plastic frame 10.
  • the groove width of the grooved portion 102 is smaller than the width of the plastic frame 10, and the distance between the boundary of the plastic frame 10 on the side close to the light guide plate 30 and the grooved portion 102 is less than or equal to the plastic frame 10 The distance between the boundary on the side far from the light guide plate 30 and the grooved portion 102.
  • the widths of the plastic frames 10 on both sides of the grooved portion 102 are the same, and the width can be kept at about 0.6 mm.
  • the depth of the grooved portion 102 can be defined according to the actual manufacturing process, but the position of the elastic structure 100 on the plastic frame 10 should correspond to the position of the light guide plate 30 in the plastic frame 10 Preset position.
  • the height of the protrusion 101 needs to be slightly larger than the distance between the edge of the light guide plate 30 and the plastic frame 10, and may be larger than the distance 0.1mm ⁇ 0.5mm.
  • the specific height can be limited according to the actual manufacturing process, as long as It is sufficient to make the top of the protrusion 101 contact the light guide plate 30 and form an interference fit.
  • the elastic structure 100 is provided on at least two of the side walls of the plastic frame 10.
  • the figure only shows that the elastic structure 100 is provided on the two adjacent side walls of the plastic frame 10.
  • it can also be The side walls on opposite sides are not restricted here.
  • multiple elastic structures 100 can be formed on one of the side walls of the plastic frame 10, which can ensure that the light guide plate 30 does not produce large displacements and cause abnormal noise and vibration. Bruises.
  • the elastic structure 100 not only forms an interference fit with the light guide plate 30, but also forms an interference fit with the optical film.
  • the optical film includes but is not limited to a reflective plate. , Diffuser, etc.
  • the protrusion 101 is step-shaped, which can be adapted to the light guide plate 30 of different sizes, and the stepped structure can also ensure that the light guide plate 30 is not easy to mark the protrusion
  • the specific shape of the protrusion 101 can be set according to the actual manufacturing process.
  • This embodiment can avoid the phenomenon that the light guide plate 30 hits the side wall of the plastic frame 10 when the backlight module is shaken to produce abnormal noise and the dots of the light guide plate 30 are scratched and cause optical defects. Since the backlight module of this embodiment directly uses a part of the plastic frame 10 as the elastic structure 100, no new manufacturing process and structure need to be added, so the cost and production man-hours of additional design of rubber blocks are saved.
  • FIG. 2 it is a schematic structural diagram of the elastic structure of the backlight module provided by an embodiment of the application before deformation.
  • the protrusion 101 of the elastic structure 100 is used to contact the edge of the light guide plate 30, and there is a gap between other parts of the plastic frame 10 and the light guide plate 30.
  • the cross-sectional shape of the protrusion 101 is a trapezoid, and the length of the lower base of the trapezoid is about 5 mm, but it is not limited to this.
  • a rounded corner is formed between the inner wall of the grooved portion 102 on the side close to the light guide plate 30 and the adjacent inner wall.
  • stress concentration may be avoided to cause the rubber frame 10 between the protruding portion 101 and the grooved portion 102 to break.
  • the corners of the grooved portion 102 are rounded.
  • the corners of the protrusion 101 and the plastic frame 10 are designed to be rounded.
  • the cross-sectional shape of the protrusion 101 includes, but is not limited to, one or any combination of more than one of rectangle, trapezoid, and arc.
  • FIG. 3 it is a schematic structural diagram of the elastic structure of the backlight module provided by the embodiment of the application after deformation.
  • the protrusion 101 is squeezed by the light guide plate 30.
  • One side of the grooved portion 102 is offset, which deforms the grooved portion 102.
  • the grooved portion 102 will apply force to the light guide plate 30 through the protrusion 101 , So that the elastic structure 100 and the light guide plate 30 form an interference fit, thereby realizing the position limiting and fixing of the light guide plate 30.
  • the peripheral edges of the light guide plate 30 will be attached to the side wall of the plastic frame 10, due to the increased contact between the light guide plate 30 and the plastic frame 10 Therefore, the stability of the light guide plate 30 is further improved.
  • the application also provides a display device, including a display panel and the above-mentioned backlight module.
  • the display device is suitable for vehicle display, but is not limited to this.
  • the display panel may be a liquid crystal display panel, an OLED display panel, a WOLED display panel, etc.
  • the backlight module and display device form an elastic structure by designing protrusions and grooves on the plastic frame.
  • the protrusions are The squeezing of the light guide plate causes the grooved portion to deform, so that the elastic structure and the light guide plate form an interference fit to realize the position limit fixation of the light guide plate.

Abstract

一种背光模组、显示装置，其背光模组包括胶框(10)和位于胶框(10)内的导光板(30)，在胶框(10)上形成凸起部(101)和与凸起部(101)对应的挖槽部(102)以形成弹性结构(100)，凸起部(101)用于与导光板(30)的侧壁接触，凸起部(101)因受到导光板(30)的挤压而向挖槽部(102)一侧偏移，从而使挖槽部(102)发生形变，使得弹性结构(100)与导光板(30)形成过盈配合，进而将导光板(30)固定于胶框(10)内而不发生偏移。

Description

一种背光模组、显示装置 技术领域
本申请涉及显示器技术领域，尤其涉及一种背光模组、显示装置。
 背景技术
随着显示技术的发展，车载显示模组的应用也越来越多，其中由于车规的高可靠性要求，对于车载显示的结构设计要求也相对较高。
针对车规的高可靠性要求，背光源中的导光板如果不进行限位固定，会存在模组摇晃时导光板撞击侧壁产生异音的问题以及震动时导光板网点擦伤引起光学不良的问题；现阶段车载显示模组通常是使用多处橡胶块（rubber）顶住导光板进行限位。
由于橡胶块材质相对较软，受到加工工艺限制，裁切时可能会存在厚度不均，从而引起导光板无法组装到位；因为需要另外组入多处橡胶块，因此会增加背光组装工序，造成成本增加。
因此，现有技术存在缺陷，急需改进。
 技术问题
本申请提供一种背光模组、显示装置，能够解决现有车载显示装置在背光模组摇晃时导光板撞击侧壁产生异音及导光板网点擦伤引起光学不良的问题，以及解决导光板组装精度不佳，且工序复杂等问题。
 技术解决方案
为解决上述问题，本申请提供的技术方案如下：
本申请提供一种背光模组，其包括胶框和位于所述胶框内的光源、导光板以及光学膜片；
所述胶框的至少两个侧壁上设置有弹性结构，所述弹性结构与所述导光板以及所述光学膜片的侧壁接触，且与所述导光板及所述光学膜片形成过盈配合，以使所述导光板及所述光学膜片固定于所述胶框内。
在本申请的背光模组中，所述弹性结构与所述胶框为一体设计，所述弹性结构包括凸起部和对应所述凸起部设置的挖槽部，所述凸起部位于所述胶框靠近所述导光板一侧的侧壁上，所述挖槽部的开口位于所述胶框的顶部。
在本申请的背光模组中，一所述挖槽部至少对应一所述凸起部，在所述挖槽部的长度延伸方向上，所述挖槽部的长度大于或等于所述凸起部的长度。
在本申请的背光模组中，在所述挖槽部的深度延伸方向上，所述挖槽部的深度大于或等于所述凸起部的宽度。
在本申请的背光模组中，所述胶框靠近所述导光板一侧的边界距所述挖槽部的距离小于或等于所述胶框远离所述导光板一侧的边界距所述挖槽部的距离。
在本申请的背光模组中，所述凸起部的截面形状为矩形、梯形、弧形中的一种或一种以上的任意组合。
在本申请的背光模组中，所述挖槽部靠近所述导光板一侧的内壁与相邻内壁之间形成圆角。
在本申请的背光模组中，在组装所述导光板时，所述导光板的侧壁与所述弹性结构的所述凸起部接触，所述凸起部受所述导光板的挤压向所述挖槽部一侧偏移，所述挖槽部发生形变，使得所述弹性结构与所述导光板形成过盈配合。
在本申请的背光模组中，在组装所述光学膜片时，所述光学膜片的侧壁与所述弹性结构的所述凸起部接触，所述凸起部受所述光学膜片的挤压向所述挖槽部一侧偏移，所述挖槽部发生形变，使得所述弹性结构与所述光学膜片形成过盈配合。
为解决上述技术问题，本申请还提供一种背光模组，其包括胶框和位于所述胶框内的光源、导光板以及光学膜片；
所述胶框上设置有弹性结构，所述弹性结构与所述导光板的侧壁接触，且与所述导光板形成过盈配合，以使所述导光板固定于所述胶框内。
在本申请的背光模组中，所述弹性结构与所述胶框为一体设计，所述弹性结构包括凸起部和对应所述凸起部设置的挖槽部，所述凸起部位于所述胶框靠近所述导光板一侧的侧壁上，所述挖槽部的开口位于所述胶框的顶部。
在本申请的背光模组中，一所述挖槽部至少对应一所述凸起部，在所述挖槽部的长度延伸方向上，所述挖槽部的长度大于或等于所述凸起部的长度。
在本申请的背光模组中，在所述挖槽部的深度延伸方向上，所述挖槽部的深度大于或等于所述凸起部的宽度。
在本申请的背光模组中，所述胶框靠近所述导光板一侧的边界距所述挖槽部的距离小于或等于所述胶框远离所述导光板一侧的边界距所述挖槽部的距离。
在本申请的背光模组中，所述凸起部的截面形状为矩形、梯形、弧形中的一种或一种以上的任意组合。
在本申请的背光模组中，所述挖槽部靠近所述导光板一侧的内壁与相邻内壁之间形成圆角。
在本申请的背光模组中，在组装所述导光板时，所述导光板的侧壁与所述弹性结构的所述凸起部接触，所述凸起部受所述导光板的挤压向所述挖槽部一侧偏移，所述挖槽部发生形变，使得所述弹性结构与所述导光板形成过盈配合。
为解决上述问题，本申请还提供一种显示装置，包括显示面板和如上所述的背光模组。
 有益效果
本申请的有益效果为：相较于现有的车载显示装置，本申请提供的背光模组、显示装置，通过在胶框上设计凸起部和挖槽部从而形成弹性结构，弹性结构与导光板的侧壁接触时，凸起部因受到导光板的挤压而使挖槽部发生形变，使得弹性结构与导光板形成过盈配合，来实现导光板的限位固定。采用此设计，能够省去另外设计橡胶块的成本以及生产工时，同时能够避免背光模组摇晃时导光板撞击侧壁产生异音及导光板网点擦伤引起光学不良等现象。
 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申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本申请实施例提供的一种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弹性结构在变形前的结构示意图；
图3为本申请实施例提供的背光模组的弹性结构在变形后的结构示意图。
 本发明的实施方式
以下各实施例的说明是参考附加的图示，用以例示本申请可用以实施的特定实施例。本申请所提到的方向用语，例如[上]、[下]、[前]、[后]、[左]、[右]、[内]、[外]、[侧面]等，仅是参考附加图式的方向。因此，使用的方向用语是用以说明及理解本申请，而非用以限制本申请。在图中，结构相似的单元是用以相同标号表示。
本申请针对现有的车载显示装置，存在背光模组摇晃时导光板撞击侧壁产生异音及导光板网点擦伤引起光学不良的问题，以及导光板组装精度不佳，且工序复杂等技术问题，本实施例能够解决该缺陷。
本申请提供的所述背光模组适用于车载显示装置，但并不以此为限，还可以应用于移动式电子设备或穿戴式电子设备以及其他显示装置上。
如图1所示，为本申请实施例提供的一种背光模组的结构示意图。本实施例提供的所述背光模组可以为侧入式背光模组，也可以为直下式背光模组。所述背光模组包括：胶框10和位于所述胶框10内的光源20、导光板30以及光学膜片（未图示）。所述胶框10上设置有弹性结构100，所述弹性结构100与所述导光板30的侧壁接触，且所述弹性结构100与所述导光板30形成过盈配合，从而使所述导光板30固定于所述胶框10内。
其中，所述弹性结构100与所述胶框10为一体设计，所述弹性结构100包括凸起部101和对应所述凸起部101设置的挖槽部102，所述凸起部101位于所述胶框10靠近所述导光板30一侧的侧壁（侧面）上，所述挖槽部102位于所述胶框10的内部，且所述挖槽部102的开口位于所述胶框10的顶部。
可以理解的是，所述背光模组用于与显示面板对位贴合，所述胶框10的顶部即所述背光模组与所述显示面板贴合的一侧。
如图1中所示，一所述凸起部101对应一所述挖槽部102，从而形成所述弹性结构100。在所述挖槽部102的长度延伸方向上，所述挖槽部102的长度大于或等于所述凸起部101的长度。在所述挖槽部102的深度延伸方向上，所述挖槽部102的深度大于或等于所述凸起部101的宽度。也就是说，由所述导光板30向所述胶框10一侧的方向上，所述凸起部101在所述胶框10侧壁上的投影落入所述挖槽部102在所述胶框10侧壁上的投影范围内。当然，并不以此为限。
在一种实施例中，从所述导光板30一侧向所述胶框10一侧的方向上，所述凸起部101在所述胶框10侧壁上的投影位于所述挖槽部102在所述胶框10侧壁上的投影的中间位置。
所述挖槽部102的挖槽宽度小于所述胶框10的宽度，所述胶框10靠近所述导光板30一侧的边界距所述挖槽部102的距离小于或等于所述胶框10远离所述导光板30一侧的边界距所述挖槽部102的距离。在图1中，位于所述挖槽部102两侧的所述胶框10的宽度相同，宽度可以保留在0.6mm左右。
本实施例中，所述挖槽部102的深度可根据实际制程而限定，但所述弹性结构100在所述胶框10上的位置应对应位于所述导光板30在所述胶框10内的预设位置。
所述凸起部101的高度需略微大于所述导光板30边缘与所述胶框10之间的间距，可以大于所述间距0.1mm~0.5mm，具体的高度可根据实际制程而限定，只要使所述凸起部101的顶部与所述导光板30接触且形成过盈配合即可。
所述胶框10的至少两所述侧壁上设置有所述弹性结构100，图中仅示意了所述胶框10相邻两所述侧壁上设置所述弹性结构100，当然也可以是相对两侧的侧壁，此处不做限制。另外，在空间允许的情况下，在所述胶框10的一所述侧壁上可以做多个所述弹性结构100，可以确保所述导光板30不会产生较大位移导致异音及震动擦伤。
在另一种实施例中，所述弹性结构100除与所述导光板30形成过盈配合外，同时还与所述光学膜片形成过盈配合，所述光学膜片包括但不限于反射板、扩散板等。
在另一种实施例中，所述凸起部101呈台阶状，可适应于不同尺寸的所述导光板30，且台阶状结构也可以保证所述导光板30不容易划出所述凸起部101，所述凸起部101的具体形状可根据实际制程设定。
本实施例能够避免所述背光模组摇晃时所述导光板30撞击所述胶框10的侧壁产生异音及所述导光板30的网点擦伤引起光学不良等现象。由于本实施例的所述背光模组直接采用所述胶框10的局部作为所述弹性结构100，不需要增加新的制程和结构，因此省去另外设计橡胶块的成本以及生产工时。
如图2所示，为本申请实施例提供的背光模组的弹性结构在变形前的结构示意图。所述弹性结构100的所述凸起部101用于与所述导光板30的边缘接触，所述胶框10的其他部位与所述导光板30之间存在间隙。在本实施例中，所述凸起部101的截面形状为梯形，梯形的下底边的长度在5mm左右，但不以此为限。
所述挖槽部102靠近所述导光板30一侧的内壁与相邻内壁之间形成圆角。在所述挖槽部102变形的过程中避免应力集中导致所述凸起部101与所述挖槽部102之间的所述胶框10断裂。或者，所述挖槽部102的边角处均设置为圆角。亦或者，所述凸起部101与所述胶框10的转角处设计成圆角。
其中，所述凸起部101的截面形状包括但不限于矩形、梯形、弧形中的一种或一种以上的任意组合。
如图3所示，为本申请实施例提供的背光模组的弹性结构在变形后的结构示意图。在组装所述导光板30时，所述导光板30的侧壁与所述弹性结构100的所述凸起部101接触后，所述凸起部101因受到所述导光板30的挤压向所述挖槽部102一侧偏移，使所述挖槽部102发生形变，如图示中所示，所述挖槽部102会通过所述凸起部101向所述导光板30施加力，从而使得所述弹性结构100与所述导光板30形成过盈配合，进而实现所述导光板30的限位固定。另外，所述挖槽部102发生形变后，所述导光板30的四周边缘会贴合至所述胶框10的侧壁上，由于增加了所述导光板30与所述胶框10的接触面积，因此，所述导光板30的稳定性进一步提高。
本申请还提供一种显示装置，包括显示面板和如上所述的背光模组。所述显示装置适用于车载显示，但并不以此为限。所述显示面板可以为液晶显示面板、OLED显示面板、WOLED显示面板等。
综上所述，本申请提供的背光模组、显示装置，通过在胶框上设计凸起部和挖槽部从而形成弹性结构，弹性结构与导光板的侧壁接触时，凸起部因受到导光板的挤压而使挖槽部发生形变，使得弹性结构与导光板形成过盈配合，来实现导光板的限位固定。采用此设计，能够省去另外设计橡胶块的成本以及生产工时，同时能够避免背光模组摇晃时导光板撞击侧壁产生异音及导光板网点擦伤引起光学不良等现象。
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 (18)

  1. 一种背光模组，其包括胶框和位于所述胶框内的光源、导光板以及光学膜片；
    所述胶框的至少两个侧壁上设置有弹性结构，所述弹性结构与所述导光板以及所述光学膜片的侧壁接触，且与所述导光板及所述光学膜片形成过盈配合，以使所述导光板及所述光学膜片固定于所述胶框内。
  2. 根据权利要求1所述的背光模组，其中，所述弹性结构与所述胶框为一体设计，所述弹性结构包括凸起部和对应所述凸起部设置的挖槽部，所述凸起部位于所述胶框靠近所述导光板一侧的侧壁上，所述挖槽部的开口位于所述胶框的顶部。
  3. 根据权利要求2所述的背光模组，其中，一所述挖槽部至少对应一所述凸起部，在所述挖槽部的长度延伸方向上，所述挖槽部的长度大于或等于所述凸起部的长度。
  4. 根据权利要求2所述的背光模组，其中，在所述挖槽部的深度延伸方向上，所述挖槽部的深度大于或等于所述凸起部的宽度。
  5. 根据权利要求2所述的背光模组，其中，所述胶框靠近所述导光板一侧的边界距所述挖槽部的距离小于或等于所述胶框远离所述导光板一侧的边界距所述挖槽部的距离。
  6. 根据权利要求2所述的背光模组，其中，所述凸起部的截面形状为矩形、梯形、弧形中的一种或一种以上的任意组合。
  7. 根据权利要求2所述的背光模组，其中，所述挖槽部靠近所述导光板一侧的内壁与相邻内壁之间形成圆角。
  8. 根据权利要求2所述的背光模组，其中，在组装所述导光板时，所述导光板的侧壁与所述弹性结构的所述凸起部接触，所述凸起部受所述导光板的挤压向所述挖槽部一侧偏移，所述挖槽部发生形变，使得所述弹性结构与所述导光板形成过盈配合。
  9. 根据权利要求2所述的背光模组，其中，在组装所述光学膜片时，所述光学膜片的侧壁与所述弹性结构的所述凸起部接触，所述凸起部受所述光学膜片的挤压向所述挖槽部一侧偏移，所述挖槽部发生形变，使得所述弹性结构与所述光学膜片形成过盈配合。
  10. 一种背光模组，其括胶框和位于所述胶框内的光源、导光板以及光学膜片；
    所述胶框上设置有弹性结构，所述弹性结构与所述导光板的侧壁接触，且与所述导光板形成过盈配合，以使所述导光板固定于所述胶框内。
  11. 根据权利要求10所述的背光模组，其中，所述弹性结构与所述胶框为一体设计，所述弹性结构包括凸起部和对应所述凸起部设置的挖槽部，所述凸起部位于所述胶框靠近所述导光板一侧的侧壁上，所述挖槽部的开口位于所述胶框的顶部。
  12. 根据权利要求11所述的背光模组，其中，一所述挖槽部至少对应一所述凸起部，在所述挖槽部的长度延伸方向上，所述挖槽部的长度大于或等于所述凸起部的长度。
  13. 根据权利要求11所述的背光模组，其中，在所述挖槽部的深度延伸方向上，所述挖槽部的深度大于或等于所述凸起部的宽度。
  14. 根据权利要求11所述的背光模组，其中，所述胶框靠近所述导光板一侧的边界距所述挖槽部的距离小于或等于所述胶框远离所述导光板一侧的边界距所述挖槽部的距离。
  15. 根据权利要求11所述的背光模组，其中，所述凸起部的截面形状为矩形、梯形、弧形中的一种或一种以上的任意组合。
  16. 根据权利要求11所述的背光模组，其中，所述挖槽部靠近所述导光板一侧的内壁与相邻内壁之间形成圆角。
  17. 根据权利要求11所述的背光模组，其中，在组装所述导光板时，所述导光板的侧壁与所述弹性结构的所述凸起部接触，所述凸起部受所述导光板的挤压向所述挖槽部一侧偏移，所述挖槽部发生形变，使得所述弹性结构与所述导光板形成过盈配合。
  18. 一种显示装置，其包括显示面板和如权利要求10所述的背光模组。
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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09197383A (ja) * 1996-01-22 1997-07-31 Casio Comput Co Ltd 液晶表示装置
US6104466A (en) * 1999-01-07 2000-08-15 International Business Machines Corporation Precision alignment of plates
CN201029015Y (zh) * 2007-02-28 2008-02-27 群康科技(深圳)有限公司 背光模组和采用该背光模组的液晶显示装置
CN206176100U (zh) * 2016-10-14 2017-05-17 芜湖德仓光电有限公司 一种导光板与胶框的组装结构
CN208011366U (zh) * 2018-04-24 2018-10-26 信利半导体有限公司 一种背光模组
CN109751532A (zh) * 2017-11-02 2019-05-14 苏州璨鸿光电有限公司 背光模块及光学膜片定位方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203686916U (zh) * 2014-01-23 2014-07-02 京东方光科技有限公司 一种胶框、背光源模组、显示装置
CN208367379U (zh) * 2018-06-20 2019-01-11 广州视源电子科技股份有限公司 背光模组及显示装置
CN209946439U (zh) * 2019-05-24 2020-01-14 武汉华星光电技术有限公司 一种背光模组、显示装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09197383A (ja) * 1996-01-22 1997-07-31 Casio Comput Co Ltd 液晶表示装置
US6104466A (en) * 1999-01-07 2000-08-15 International Business Machines Corporation Precision alignment of plates
CN201029015Y (zh) * 2007-02-28 2008-02-27 群康科技(深圳)有限公司 背光模组和采用该背光模组的液晶显示装置
CN206176100U (zh) * 2016-10-14 2017-05-17 芜湖德仓光电有限公司 一种导光板与胶框的组装结构
CN109751532A (zh) * 2017-11-02 2019-05-14 苏州璨鸿光电有限公司 背光模块及光学膜片定位方法
CN208011366U (zh) * 2018-04-24 2018-10-26 信利半导体有限公司 一种背光模组

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