WO2023164971A1 - 背光模组和显示面板 - Google Patents

背光模组和显示面板 Download PDF

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Publication number
WO2023164971A1
WO2023164971A1 PCT/CN2022/080577 CN2022080577W WO2023164971A1 WO 2023164971 A1 WO2023164971 A1 WO 2023164971A1 CN 2022080577 W CN2022080577 W CN 2022080577W WO 2023164971 A1 WO2023164971 A1 WO 2023164971A1
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WO
WIPO (PCT)
Prior art keywords
sub
groove
outer frame
backlight module
boss
Prior art date
Application number
PCT/CN2022/080577
Other languages
English (en)
French (fr)
Inventor
张智涵
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 US17/769,772 priority Critical patent/US20240160055A1/en
Publication of WO2023164971A1 publication Critical patent/WO2023164971A1/zh

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • 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
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133314—Back frames
    • 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 application relates to the field of display technology, in particular to a backlight module and a display panel.
  • the car display screen is a non-standard part, and there are also various customization requirements in the product development process.
  • the size of the visual area of the car display screen on the market is relatively fixed.
  • the car display screen with the same visual area size often has many external dimensions.
  • the shape and structure of the vehicle display screen mostly adopts the combination scheme of the bottom sheet metal and the outer frame. For models with the same viewing area but different dimensions, it is necessary to make a special backlight mold to make the frame of the vehicle display, which leads to high cost and difficult control of the vehicle display.
  • the present application provides a backlight module and a display panel to alleviate the technical problem of high cost of the existing vehicle display screen.
  • An embodiment of the present application provides a backlight module, which includes:
  • a backboard including a bottom board and an outer frame fixedly connected to the bottom board, and the outer frame surrounds the bottom board to form an accommodating cavity;
  • the widening member is arranged on at least one side of the outer frame away from the accommodating cavity, and is detachably connected with the outer frame.
  • the outer frame is provided with a first sliding groove
  • the widening member is provided with a first boss at a position corresponding to the first sliding groove, and the first The boss is accommodated in the first sliding groove and can slide in the first sliding groove.
  • the first sliding groove includes a first sub-groove and a second sub-groove that penetrate each other, and the first boss includes a first sub-boss and a second sub-groove that are fixedly connected.
  • a sub-boss, the first sub-boss is accommodated in the first sub-groove and can slide in the first sub-groove
  • the second sub-boss is accommodated in the second sub-groove and can slide in the second sub-groove.
  • the opening size of the first sub-groove is larger than the opening size of the second sub-groove, and the second sub-groove is located far away from the accommodating side of the cavity.
  • a plurality of second bosses are arranged on the inner wall of the second sub-groove, and the second bosses are provided with a second boss at a position corresponding to the second boss. Two grooves, one of the second bosses is located in one of the second grooves.
  • a stopper is further arranged on the outer frame, and the first sliding groove ends at the stopper.
  • the longitudinal cross-sectional shape of the second boss is a right-angled inverted trapezoid, wherein the right-angled side of the right-angled inverted trapezoid is close to the stopper.
  • the outer frame is further provided with a first chamfer on the side away from the stopper, and the widening member is provided with a first chamfer on the side close to the stopper. Two chamfers.
  • the width of the second boss is smaller than the width of the second groove, and the height of the second boss is smaller than the depth of the second groove.
  • the interval between two adjacent second bosses is 30 mm to 50 mm.
  • the plurality of widening members are arranged on the side of the outer frame away from the accommodating cavity, and the plurality of widening members are detachably connected.
  • the widths of the plurality of widening members are different.
  • the widening member is disposed on opposite sides of the outer frame away from the accommodating cavity, and the widths of the widening members on both sides are the same or different.
  • An embodiment of the present application further provides a display panel, which includes a liquid crystal cell and a backlight module according to one of the foregoing embodiments, and the liquid crystal cell is located in a light emitting direction of the backlight module.
  • the backlight module includes a backplane and a widening member
  • the backplane includes a bottom plate and an outer frame fixedly connected to the bottom plate, and the outer frame surrounds the bottom plate to form a Accommodating cavity.
  • the widening member is arranged on at least one side of the outer frame away from the accommodating cavity, and is detachably connected with the outer frame.
  • the overall width of the outer frame can be adjusted, so that when dealing with vehicle-mounted display screens with the same visual area size but different external dimensions, only the widening member needs to be replaced to meet the overall shape
  • the outer frame can be shared, and then the outer frame mold can be shared, which significantly reduces the number of molds for the backlight outer frame and reduces the cost of the backlight.
  • FIG. 1 is a partial structural schematic diagram of a backlight module provided by an embodiment of the present application.
  • FIG. 2 is a schematic diagram of a disassembled structure of the backlight module in FIG. 1 .
  • FIG. 3 is a schematic diagram of an enlarged structure at M in FIG. 2 .
  • Fig. 4 is a schematic diagram of the detailed structure of the widening member in Fig. 2 .
  • FIG. 5 is a schematic cross-sectional structure diagram of a backlight module provided by an embodiment of the present application.
  • Fig. 6 is a schematic diagram of the detailed structure of the combination of the widening member and the outer frame according to the embodiment of the present application.
  • vehicle-mounted display screens with the same viewing area size often have many external dimensions.
  • special backlight molds need to be made, and mold opening requires high costs, which in turn leads to high costs and difficult control of vehicle-mounted displays.
  • the inventor of the present application proposes a backlight module and a display panel to solve the above-mentioned problem of high cost of the vehicle display screen.
  • FIG. 1 is a partial structural schematic diagram of the backlight module provided by the embodiment of the present application.
  • FIG. 2 is a schematic diagram of the split structure of the backlight module in FIG. 1.
  • FIG. The schematic diagram of the enlarged structure at M FIG. 4 is a schematic diagram of the detailed structure of the widening member in FIG. Schematic diagram of the detailed structure of the outer frame combination.
  • the backlight module 100 includes a back plate 10 and a widening member 20, the back plate 10 includes a bottom plate 11 and an outer frame 12 fixedly connected with the bottom plate 11, and the outer frame 12 surrounds the bottom plate 11 to form an accommodating Cavity 111.
  • the widening member 20 is disposed on at least one side of the outer frame 12 away from the accommodating chamber 111 , and is detachably connected to the outer frame 12 .
  • the overall width of the outer frame 12 can be adjusted, so that only the widening member 20 needs to be replaced when dealing with vehicle-mounted display screens with the same visual area size but different external dimensions. It can meet the requirements of the overall shape and size, share the outer frame 12, and then share the mold of the outer frame 12, significantly reduce the number of molds for the backlight outer frame 12, and reduce the cost of the backlight.
  • the bottom plate 11 is a sheet metal bottom plate
  • the outer frame 12 is a plastic frame material outer frame
  • the outer frame 12 and the bottom plate 11 can be fixedly connected by means of screws or the like, but the present application Not limited thereto, the outer frame 12 and the bottom plate 11 of the present application can also be integrally arranged to realize the back plate 10 integrated with rubber and iron.
  • the outer frame 12 surrounds the bottom plate 11 to form an accommodating cavity 111
  • the backlight module 100 further includes a light source, an optical film and the like disposed in the accommodating cavity 111 .
  • the light source can be installed in a side-entry type or a direct-down type
  • the optical film includes a reflection sheet, a light guide plate, a diffusion sheet, and a brightness enhancement film.
  • the outer frame 12 is provided with a first chute 121, and the widening member 20 is provided with a first boss 21 at a position corresponding to the first chute 121, and the first boss 21 is accommodated in the In the first sliding groove 121 and can slide in the first sliding groove 121, the widening member 20 and the outer frame 12 are detachably connected together, of course, the widening member 20 and the The connection method of the outer frame 12 is not limited thereto, for example, the widening member 20 and the outer frame 12 can also be fixedly connected by means of screws, welding, bonding and the like.
  • the widening member 20 may be a mechanical member processed from materials such as metal and plastic.
  • the outer frame 12 surrounds the bottom plate, and the shape of the outer frame 12 can be set as a quadrangle, a circle, etc. according to actual needs.
  • This application takes the shape of the outer frame 12 as a quadrangle as an example for illustration.
  • the outer frame 12 includes four frames, and the widening member 20 is arranged on the frame of the outer frame 12, so that the width of the outer frame 12 can be adjusted according to actual needs.
  • the widening member 20 can be arranged on at least one frame of the outer frame 12 according to the actual width of the outer frame, that is, the widening member 20 is arranged on the outer frame.
  • the frame 12 faces away from at least one side of the accommodating cavity 111 .
  • the first sliding groove 121 of the outer frame 12 includes a first sub-groove 1211 and a second sub-groove 1212 that communicate with each other, and correspondingly, the first boss of the widening member 20 21 includes a first sub-boss 211 and a second sub-boss 212 fixedly connected, the first sub-boss 211 is accommodated in the first sub-slot 1211 and can slide in the first sub-slot 1211, The second sub-protrusion 212 is received in the second sub-slot 1212 and can slide in the second sub-slot 1212 .
  • the opening size of the first sub-slot 1211 is larger than the opening size of the second sub-slot 1212 , and the second sub-slot 1212 is located at a side of the first sub-slot 1211 away from the accommodating cavity 111 side, so that the first chute 121 is designed in a convex shape as a whole.
  • the overall design of the first boss 21 is T-shaped, so that when the first boss 21 is accommodated in the first slide groove 121, the widening member 20 will not be opposed to it.
  • the connected outer frame 12 moves up and down and back and forth.
  • the arrangement of the first sub-groove 1211 and the second sub-groove 1212 is not limited thereto, for example, in another embodiment, the opening size of the first sub-groove 1211 may also be smaller than the The opening size of the second sub-groove 1212, the first boss 21 is still accommodated in the first sliding groove 121, but at this time in order to avoid the front and back of the widening member 20 relative to the outer frame 12 connected to it To move, stoppers such as engaging members can be provided on the inner wall of the first boss 21 or the first chute 121 .
  • the first slide of the outer frame 12 changes from large to small, and at this time, the first boss 21 of the widening member 20 cannot be installed into the first sliding groove 121 toward the direction of the receiving cavity 111 . Therefore, it is necessary to make the widening member 20 slide into the first sliding groove 121 along the length direction X of the outer frame 12 connected thereto, as shown in FIG. 2 .
  • the first slide groove 121 runs through at least one side of the outer frame 12, so that the first boss 21 can 12 slides into the first chute 121 in the longitudinal direction X.
  • the present application defines the thickness of the outer frame 12 along the direction perpendicular to the plane where the bottom plate 11 is located as the height of the outer frame 12, and the outer frame 12 is parallel to the bottom plate 11 along the
  • the thickness on the plane and perpendicular to the length direction X is the width of the outer frame 12, wherein the “up and down” mentioned in this application refers to the height direction of the outer frame 12, and “front and rear” refers to the height direction along the outer frame 12.
  • the width direction of the outer frame 12 is mentioned, and “left and right” refers to the length direction of the outer frame 12.
  • the outer frame 12 is further provided with a stopper 123 , and the first slide groove 121 ends at the stopper 123 . That is, along the length direction X of the outer frame 12 , one side of the outer frame 12 is provided with the stopper 123 , and the side opposite to the stopper 123 exposes the first sliding groove 121 . In this way, after the first boss 21 of the widening member 20 slides into the first slide groove 121 , it will be blocked by the stopper 123 .
  • the first sliding An engaging structure is provided on the inner wall of the groove 121 or on the first boss 21 .
  • the inner wall of the second sub-groove 1212 is provided with a plurality of second bosses 122, and the second sub-chassis 212 is provided with a first Two grooves 22 , the second boss 122 is located in the second groove 22 .
  • the longitudinal section shape of the second boss 122 is a right-angled inverted trapezoid, wherein the right-angled side of the right-angled inverted trapezoid is close to the stopper 123, which facilitates the assembly of the widening member 20 and the outer frame 12, And it can prevent the widening member 20 from sliding after being assembled with the outer frame 12 .
  • the width of the second boss 122 is smaller than the width of the second groove 22 , and the height of the second boss 122 is smaller than the depth of the second groove 22 .
  • the width of the second boss 122 can be set to 1 mm to 2 mm
  • the height of the second boss 122 can be set to 0.5 mm to 1 mm
  • the distance between two adjacent second bosses 122 Can be set from 30mm to 50mm.
  • the width of the second groove 22 can be set to be 1.5 mm to 2.5 mm.
  • the specific number of the second boss 122 and the second groove 22 depends on the length of the outer frame 12, for example, for a longer outer frame 12, the number of the second boss 122 can be set 6 to 7, for the outer frame 12 with a shorter length, the number of the second bosses 122 can be set to 4 to 5.
  • the outer frame 12 is also provided with a first chamfer 124 on the side away from the stopper 123, correspondingly , the widening member 20 is provided with a second chamfer 23 on a side close to the stopper 123 .
  • the overall width of the outer frame 12 can be adjusted. Replacing the widening member 20 can meet the requirements of the overall shape and size, and the outer frame 12 can be shared, and then the outer frame mold can be shared, which significantly reduces the number of molds for the backlight outer frame and reduces the cost of the backlight.
  • the widening member 20 is slid into the outer frame 12 by adopting a side slide-in design, which has the advantages of easy processing, assembly and firm structure.
  • a plurality of widening members 20 may be provided on the side of the outer frame 12 facing away from the accommodating cavity 111 , and one of the plurality of widening members 20 detachable connection. In this way, a plurality of the widening members 20 are detachably combined with each other and detachably connected to the outer frame 12 , so that the adjustable range of the width of the outer frame 12 is wider and more flexible.
  • the widths of the multiple widening members 20 may be the same or different. For other descriptions, please refer to the above-mentioned embodiments, which will not be repeated here.
  • the widening member 20 is arranged on the opposite sides of the outer frame 12 facing away from the accommodating cavity 111, and the widening members 20 on both sides
  • the widths can also be the same or different.
  • an embodiment of the present application further provides a display panel, which includes the backlight module 100 of one of the above-mentioned embodiments.
  • the display panel further includes a liquid crystal cell disposed in the light emitting direction of the backlight module 100, a lower polarizer disposed between the liquid crystal cell and the backlight module 100, and a lower polarizer disposed on the liquid crystal cell. and the upper polarizer on the side away from the backlight module 100 .
  • the liquid crystal cell includes an array substrate and a color filter substrate oppositely arranged, and liquid crystal molecules arranged between the array substrate and the color filter substrate.
  • the present application provides a backlight module and a display panel
  • the backlight module includes a backplane and a widening member
  • the backplane includes a bottom plate and an outer frame fixedly connected to the bottom plate, the outer frame surrounds the bottom plate Form a cavity.
  • the widening member is arranged on at least one side of the outer frame away from the accommodating cavity, and is detachably connected with the outer frame.
  • the overall width of the outer frame can be adjusted, so that when dealing with vehicle-mounted display screens with the same visual area size but different external dimensions, only the widening member needs to be replaced to meet the overall shape
  • the outer frame can be shared, and then the outer frame mold can be shared, which significantly reduces the number of molds for the backlight outer frame and reduces the cost of the backlight.

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  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
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  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
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  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
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Abstract

一种背光模组（100）和显示面板，背光模组（100）包括背板（10）和加宽构件（20），加宽构件（20）设置于外框（12）背离容纳腔（111）的至少一侧，并与外框（12）可拆卸连接。如此在应对可视区域尺寸相同但外形尺寸不同的车载显示屏时，仅需更换加宽构件（20）就可以满足整体外形尺寸要求，可以共用外框（12），进而共用外框（12）模具，显著减少背光外框（12）开模数量，降低了背光成本。

Description

背光模组和显示面板 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和显示面板。
 背景技术
随着现代汽车行业的发展，车内设备在满足基本功能的同时，也越来越追求个性化设计。其中车载显示屏作为非标准件，在产品开发过程中也有各种各样的客制化需求。目前市面上的车载显示屏可视区尺寸选择较为固定，然而由于汽车整机设计不同，相同可视区尺寸的车载显示屏往往也会有很多的外形尺寸。车载显示屏的外形结构多采用底钣金与外框组合方案。针对可视区域尺寸相同，但外形尺寸不同的机种，都需要制作专用背光模具来制作车载显示屏外框，进而导致车载显示屏的成本较高且管控难度较大。
 技术问题
本申请提供一种背光模组和显示面板，以缓解现有车载显示屏的成本较高的技术问题。
 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：
本申请实施例提供一种背光模组，其包括：
背板，包括底板以及与所述底板固定连接的外框，所述外框环绕所述底板以形成容纳腔；以及
加宽构件，设置于所述外框背离所述容纳腔的至少一侧，并与所述外框可拆卸连接。
在本申请实施例提供的背光模组中，所述外框上设置有第一滑槽，所述加宽构件在对应所述第一滑槽的位置设置有第一凸台，所述第一凸台收容在所述第一滑槽内且能够在所述第一滑槽内滑动。
在本申请实施例提供的背光模组中，所述第一滑槽包括相互贯通的第一子槽和第二子槽，所述第一凸台包括固定连接的第一子凸台和第二子凸台，所述第一子凸台收容在所述第一子槽内且能够在所述第一子槽内滑动，所述第二子凸台收容在所述第二子槽内且能够在所述第二子槽内滑动。
在本申请实施例提供的背光模组中，所述第一子槽的开口尺寸大于所述第二子槽的开口尺寸，且所述第二子槽位于所述第一子槽远离所述容纳腔的一侧。
在本申请实施例提供的背光模组中，所述第二子槽的内壁上设置有多个第二凸台，所述第二子凸台在对应所述第二凸台的位置设置有第二凹槽，一个所述第二凸台位于一个所述第二凹槽内。
在本申请实施例提供的背光模组中，所述外框上还设置有挡块，所述第一滑槽截止于所述挡块。
在本申请实施例提供的背光模组中，所述第二凸台的纵截面形状为直角倒梯形，其中所述直角倒梯形的直角边靠近所述挡块。
在本申请实施例提供的背光模组中，所述外框在远离所述挡块的一侧还设置有第一倒角，所述加宽构件在靠近所述挡块的一侧设置有第二倒角。
在本申请实施例提供的背光模组中，所述第二凸台的宽度小于所述第二凹槽的宽度，所述第二凸台的高度小于所述第二凹槽的深度。
在本申请实施例提供的背光模组中，相邻两个所述第二凸台之间的间隔为30毫米至50毫米。
在本申请实施例提供的背光模组中，多个所述加宽构件设置在所述外框背离所述容纳腔的一侧，且多个所述加宽构件之间可拆卸连接。
在本申请实施例提供的背光模组中，多个所述加宽构件的宽度不同。
在本申请实施例提供的背光模组中，所述加宽构件设置在所述外框背离所述容纳腔的相对两侧，两侧的所述加宽构件的宽度相同或不同。
本申请实施例还提供一种显示面板，其包括液晶盒以及前述实施例其中之一的背光模组，所述液晶盒位于所述背光模组的出光方向上。
 有益效果
本申请提供的背光模组和显示面板中，背光模组包括背板和加宽构件，所述背板包括底板以及与所述底板固定连接的外框，所述外框环绕所述底板以形成容纳腔。所述加宽构件设置于所述外框背离所述容纳腔的至少一侧，并与所述外框可拆卸连接。通过设置与外框固定连接的加宽构件，使得外框的整体宽度可调节，如此在应对可视区域尺寸相同但外形尺寸不同的车载显示屏时，仅需更换加宽构件就可以满足整体外形尺寸要求，可以共用外框，进而共用外框模具，显著减少背光外框开模数量，降低了背光成本。
 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为本申请实施例提供的背光模组的部分结构示意图。
图2为图1中背光模组的拆分结构示意图。
图3为图2中M处的放大结构示意图。
图4为图2中加宽构件的细节结构示意图。
图5为本申请实施例提供的背光模组的剖面结构示意图。
图6为本申请实施例提供加宽构件与外框组合的细节结构示意图。
 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。在附图中，为了清晰理解和便于描述，夸大了一些层和区域的厚度。即附图中示出的每个组件的尺寸和厚度是任意示出的，但是本申请不限于此。
针对现有车载显示屏的成本较高的问题，本申请发明人发现主要是由于汽车整机设计不同，相同可视区尺寸的车载显示屏往往也会有很多的外形尺寸。对于外形尺寸不同的机种，都需要制作专用背光模具，而开模需要较高的成本，进而导致车载显示屏的成本较高且管控难度较大。
为此，本申请发明人提出了一种背光模组和显示面板以解决上述车载显示屏的成本较高的问题。
具体地，请结合参照图1至图6，图1为本申请实施例提供的背光模组的部分结构示意图，图2为图1中背光模组的拆分结构示意图，图3为图2中M处的放大结构示意图，图4为图2中加宽构件的细节结构示意图，图5为本申请实施例提供的背光模组的剖面结构示意图，图6为本申请实施例提供加宽构件与外框组合的细节结构示意图。所述背光模组100包括背板10和加宽构件20，所述背板10包括底板11以及与所述底板11固定连接的外框12，所述外框12环绕所述底板11以形成容纳腔111。所述加宽构件20设置于所述外框12背离所述容纳腔111的至少一侧，并与所述外框12可拆卸连接。
通过设置与外框12可拆卸连接的加宽构件20，使得外框12的整体宽度可调节，如此在应对可视区域尺寸相同但外形尺寸不同的车载显示屏时，仅需更换加宽构件20就可以满足整体外形尺寸要求，可以共用外框12，进而共用外框12模具，显著减少背光外框12开模数量，降低了背光成本。
可选地，所述底板11为钣金材底板，所述外框12为胶框材外框，所述外框12与所述底板11之间可通过螺钉等方式实现固定连接，但本申请不限于此，本申请的所述外框12和所述底板11还可一体式设置，实现胶铁一体的背板10。所述外框12环绕所述底板11以形成容纳腔111，所述背光模组100还包括设置在所述容纳腔111内的光源、光学膜片等。所述光源可采用侧入式或直下式设置，所述光学膜片包括反射片、导光板、扩散片以及增亮膜等。
所述外框12上设置有第一滑槽121，所述加宽构件20在对应所述第一滑槽121的位置设置有第一凸台21，所述第一凸台21收容在所述第一滑槽121内且能够在所述第一滑槽121内滑动，使所述加宽构件20和所述外框12可拆卸地连接在一块，当然地，所述加宽构件20和所述外框12的连接方式不限于此，比如所述加宽构件20和所述外框12还可通过螺钉、焊接、粘结等方式实现固定连接。可选地，所述加宽构件20可为金属、塑料等材料加工成的机构件。
需要说明的是，所述外框12环绕所述底板，所述外框12的形状可根据实际需求设置为四边形、圆形等，本申请以所述外框12的形状为四边形为例说明，则所述外框12包括四个边框，所述加宽构件20设置在所述外框12的边框上，使得所述外框12的宽度可根据实际需求进行调节。同时所述加宽构件20可根据实际要实现的外框宽度，把所述加宽构件20设置在所述外框12的至少一个边框上，也即所述加宽构件20设置于所述外框12背离所述容纳腔111的至少一侧。
下面将以一具体实施方式来阐述如何使所述加宽构件20和所述外框12固定连接：
可选地，所述外框12的所述第一滑槽121包括相互贯通的第一子槽1211和第二子槽1212，相对应地，所述加宽构件20的所述第一凸台21包括固定连接的第一子凸台211和第二子凸台212，所述第一子凸台211收容在所述第一子槽1211内且能够在所述第一子槽1211内滑动，所述第二子凸台212收容在所述第二子槽1212内且能够在所述第二子槽1212内滑动。
可选地，所述第一子槽1211的开口尺寸大于所述第二子槽1212的开口尺寸，且所述第二子槽1212位于所述第一子槽1211远离所述容纳腔111的一侧，使得所述第一滑槽121整体呈凸字形设计。相对应地，所述第一凸台21整体呈T形设计，如此当所述第一凸台21收容到所述第一滑槽121内后，可使得所述加宽构件20不会相对与其连接的所述外框12发生上下和前后移动。
可以理解的是，所述第一子槽1211和所述第二子槽1212的设置不限于此，比如在另一种实施例中，所述第一子槽1211的开口尺寸也可小于所述第二子槽1212的开口尺寸，所述第一凸台21仍收容在所述第一滑槽121内，但此时为了避免所述加宽构件20相对与其连接的所述外框12发生前后移动，可在所述第一凸台21或所述第一滑槽121的内壁上设置卡合构件等阻挡件。
另外，当所述第一子槽1211的开口尺寸大于所述第二子槽1212的开口尺寸时，在朝着远离所述容纳腔111的方向上，所述外框12的所述第一滑槽121的开口尺寸由大变小，此时所述加宽构件20的所述第一凸台21不能朝着所述容纳腔111的方向安装进所述第一滑槽121内。因此需要使所述加宽构件20沿着与其连接的所述外框12的长度方向X滑进所述第一滑槽121内，如图2所示。具体而言，在沿着所述外框12的长度方向X，所述第一滑槽121贯穿所述外框12的至少一侧，使得所述第一凸台21能够沿着所述外框12的长度方向X滑进所述第一滑槽121。
需要说明的是，本申请定义所述外框12在沿垂直于所述底板11所在平面的方向上的厚度为所述外框12的高度，所述外框12在沿平行于所述底板11所在平面且垂直于所述长度方向X上的厚度为所述外框12的宽度，其中本申请提及的“上下”即为沿所述外框12的高度方向，“前后”即为沿所述外框12的宽度方向，而“左右”即为沿所述外框12的长度方向。
为了避免所述加宽构件20相对与其连接的所述外框12发生左右移动，所述外框12上还设置有挡块123，所述第一滑槽121截止于所述挡块123。也即沿着所述外框12的长度方向X，所述外框12的一侧设置有所述挡块123，而与所述挡块123相对的一侧裸露出所述第一滑槽121。如此所述加宽构件20的所述第一凸台21滑进所述第一滑槽121后，会被所述挡块123阻挡。
当然地，在所述第一凸台21滑进所述第一滑槽121后，为了避免所述加宽构件20朝着背离所述加宽构件20滑动方向移动，可在所述第一滑槽121的内壁上或所述第一凸台21上设置卡合结构。具体而言，可选地，所述第二子槽1212的内壁上设置有多个第二凸台122，所述第二子凸台212在对应所述第二凸台122的位置设置有第二凹槽22，所述第二凸台122位于所述第二凹槽22内。所述第二凸台122的纵截面形状为直角倒梯形，其中所述直角倒梯形的直角边靠近所述挡块123，如此可方便所述加宽构件20与所述外框12的组装，且能避免所述加宽构件20和所述外框12组装后发生滑动。
可选地，所述第二凸台122的宽度小于所述第二凹槽22的宽度，所述第二凸台122的高度小于所述第二凹槽22的深度。比如所述第二凸台122的宽度可设置为1毫米至2毫米，所述第二凸台122的高度可设置为0.5毫米至1毫米，相邻两个所述第二凸台122的间距可设置为30毫米至50毫米。相对应地，所述第二凹槽22的宽度可设置为1.5毫米至2.5毫米。其中所述第二凸台122和所述第二凹槽22的具体数量取决于所述外框12的长度，比如对于长度较长的外框12，所述第二凸台122的数量可设置6至7个，对于长度较短的外框12，所述第二凸台122的数量可设置4至5个。
进一步地，为了使所述加宽构件20能够顺畅地滑进所述外框12内，所述外框12在远离所述挡块123的一侧还设置有第一倒角124，相对应地，所述加宽构件20在靠近所述挡块123的一侧设置有第二倒角23。
在本实施例中，通过设置与外框12固定连接的加宽构件20，使得外框12的整体宽度可调节，如此在应对可视区域尺寸相同但外形尺寸不同的车载显示屏时，仅需更换加宽构件20就可以满足整体外形尺寸要求，可以共用外框12，进而共用外框模具，显著减少背光外框开模数量，降低了背光成本。同时采用侧边滑入式设计使所述加宽构件20滑进所述外框12内，具有易于加工、组装以及结构牢固的优势。
在一种实施例中，与上述实施例不同的是，在所述外框12背离所述容纳腔111的一侧可设置多个所述加宽构件20，多个所述加宽构件20之间可拆卸连接。如此通过让多个所述加宽构件20彼此可拆卸连接地组合在一块，并于所述外框12可拆卸连接，使得所述外框12的宽度可调节范围更宽泛、更灵活。其中可选地，多个所述加宽构件20的宽度可以相同或不同。其他说明请参照上述实施例，在此不再赘述。
在另一种实施例中，与上述实施例不同的是，所述加宽构件20设置在所述外框12背离所述容纳腔111的相对两侧，两侧的所述加宽构件20的宽度也可相同或不同。如此在对于要实现特定外形尺寸的外框时，能够有更多可选择的搭配方案，使得所述外框12的设计更为灵活，且不用设计过多尺寸的所述加宽构件20。其他说明请参照上述实施例，在此不再赘述。
基于同一发明构思，本申请实施例还提供一种显示面板，所述显示面板包括上述实施例其中之一的背光模组100。具体而言，所述显示面板还包括设置在所述背光模组100出光方向上的液晶盒、设置于所述液晶盒和所述背光模组100之间的下偏光片以及设置于所述液晶盒远离所述背光模组100一侧的上偏光片。其中所述液晶盒包括相对设置的阵列基板和彩膜基板，以及设置在所述阵列基板和所述彩膜基板之间的液晶分子。
根据上述实施例可知：
本申请提供一种背光模组和显示面板，该背光模组包括背板和加宽构件，所述背板包括底板以及与所述底板固定连接的外框，所述外框环绕所述底板以形成容纳腔。所述加宽构件设置于所述外框背离所述容纳腔的至少一侧，并与所述外框可拆卸连接。通过设置与外框固定连接的加宽构件，使得外框的整体宽度可调节，如此在应对可视区域尺寸相同但外形尺寸不同的车载显示屏时，仅需更换加宽构件就可以满足整体外形尺寸要求，可以共用外框，进而共用外框模具，显著减少背光外框开模数量，降低了背光成本。
在上述实施例中，对各个实施例的描述都各有侧重，某个实施例中没有详述的部分，可以参见其他实施例的相关描述。
以上对本申请实施例进行了详细介绍，本文中应用了具体个例对本申请的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本申请的技术方案及其核心思想；本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例的技术方案的范围。

Claims (20)

  1. 一种背光模组，其包括：
    背板，包括底板以及与所述底板固定连接的外框，所述外框环绕所述底板以形成容纳腔；以及
    加宽构件，设置于所述外框背离所述容纳腔的至少一侧，并与所述外框可拆卸连接。
  2. 根据权利要求1所述的背光模组，其中，所述外框上设置有第一滑槽，所述加宽构件在对应所述第一滑槽的位置设置有第一凸台，所述第一凸台收容在所述第一滑槽内且能够在所述第一滑槽内滑动。
  3. 根据权利要求2所述的背光模组，其中，所述第一滑槽包括相互贯通的第一子槽和第二子槽，所述第一凸台包括固定连接的第一子凸台和第二子凸台，所述第一子凸台收容在所述第一子槽内且能够在所述第一子槽内滑动，所述第二子凸台收容在所述第二子槽内且能够在所述第二子槽内滑动。
  4. 根据权利要求3所述的背光模组，其中，所述第一子槽的开口尺寸大于所述第二子槽的开口尺寸，且所述第二子槽位于所述第一子槽远离所述容纳腔的一侧。
  5. 根据权利要求4所述的背光模组，其中，所述第二子槽的内壁上设置有多个第二凸台，所述第二子凸台在对应所述第二凸台的位置设置有第二凹槽，一个所述第二凸台位于一个所述第二凹槽内。
  6. 根据权利要求5所述的背光模组，其中，所述外框上还设置有挡块，所述第一滑槽截止于所述挡块。
  7. 根据权利要求6所述的背光模组，其中，所述第二凸台的纵截面形状为直角倒梯形，其中所述直角倒梯形的直角边靠近所述挡块。
  8. 根据权利要求6所述的背光模组，其中，所述外框在远离所述挡块的一侧还设置有第一倒角，所述加宽构件在靠近所述挡块的一侧设置有第二倒角。
  9. 根据权利要求5所述的背光模组，其中，所述第二凸台的宽度小于所述第二凹槽的宽度，所述第二凸台的高度小于所述第二凹槽的深度。
  10. 根据权利要求5所述的背光模组，其中，相邻两个所述第二凸台之间的间隔为30毫米至50毫米。
  11. 根据权利要求1所述的背光模组，其中，多个所述加宽构件设置在所述外框背离所述容纳腔的一侧，且多个所述加宽构件之间可拆卸连接。
  12. 根据权利要求11所述的背光模组，其中，多个所述加宽构件的宽度不同。
  13. 根据权利要求1所述的背光模组，其中，所述加宽构件设置在所述外框背离所述容纳腔的相对两侧，两侧的所述加宽构件的宽度相同或不同。
  14. 一种显示面板，其包括背光模组以及设置于所述背光模组出光方向上的液晶盒，所述背光模组包括：
    背板，包括底板以及与所述底板固定连接的外框，所述外框环绕所述底板以形成容纳腔；以及
    加宽构件，设置于所述外框背离所述容纳腔的至少一侧，并与所述外框可拆卸连接。
  15. 根据权利要求14所述的显示面板，其中，所述外框上设置有第一滑槽，所述加宽构件在对应所述第一滑槽的位置设置有第一凸台，所述第一凸台收容在所述第一滑槽内且能够在所述第一滑槽内滑动。
  16. 根据权利要求15所述的显示面板，其中，所述第一滑槽包括相互贯通的第一子槽和第二子槽，所述第一凸台包括固定连接的第一子凸台和第二子凸台，所述第一子凸台收容在所述第一子槽内且能够在所述第一子槽内滑动，所述第二子凸台收容在所述第二子槽内且能够在所述第二子槽内滑动。
  17. 根据权利要求16所述的显示面板，其中，所述第一子槽的开口尺寸大于所述第二子槽的开口尺寸，且所述第二子槽位于所述第一子槽远离所述容纳腔的一侧。
  18. 根据权利要求17所述的显示面板，其中，所述第二子槽的内壁上设置有多个第二凸台，所述第二子凸台在对应所述第二凸台的位置设置有第二凹槽，一个所述第二凸台位于一个所述第二凹槽内。
  19. 根据权利要求18所述的显示面板，其中，所述外框上还设置有挡块，所述第一滑槽截止于所述挡块。
  20. 根据权利要求19所述的显示面板，其中，所述外框在远离所述挡块的一侧还设置有第一倒角，所述加宽构件在靠近所述挡块的一侧设置有第二倒角。
PCT/CN2022/080577 2022-03-03 2022-03-14 背光模组和显示面板 WO2023164971A1 (zh)

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