WO2019228113A1 - 背光模组及显示装置 - Google Patents

背光模组及显示装置 Download PDF

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Publication number
WO2019228113A1
WO2019228113A1 PCT/CN2019/084620 CN2019084620W WO2019228113A1 WO 2019228113 A1 WO2019228113 A1 WO 2019228113A1 CN 2019084620 W CN2019084620 W CN 2019084620W WO 2019228113 A1 WO2019228113 A1 WO 2019228113A1
Authority
WO
WIPO (PCT)
Prior art keywords
strip
frame
backlight module
fixing
optical film
Prior art date
Application number
PCT/CN2019/084620
Other languages
English (en)
French (fr)
Inventor
徐健
先建波
乔勇
Original Assignee
京东方科技集团股份有限公司
北京京东方技术开发有限公司
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 京东方科技集团股份有限公司, 北京京东方技术开发有限公司 filed Critical 京东方科技集团股份有限公司
Priority to US16/605,407 priority Critical patent/US11307348B2/en
Priority to EP19783193.6A priority patent/EP3805850B1/en
Publication of WO2019228113A1 publication Critical patent/WO2019228113A1/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
    • 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
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • 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
    • G02F1/133317—Intermediate frames, e.g. between backlight housing and front frame
    • 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
    • G02F1/133322—Mechanical guidance or alignment of LCD panel support components
    • 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
    • G02B6/0066—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 characterised by the light source being coupled to the light guide
    • G02B6/0068—Arrangements of plural sources, e.g. multi-colour light sources

Definitions

  • Embodiments of the present disclosure relate to a backlight module and a display device.
  • a liquid crystal display includes a liquid crystal display panel and a backlight module disposed on one side of the liquid crystal display panel.
  • the backlight module is used to provide a light source for the liquid crystal display panel.
  • Embodiments of the present disclosure provide a backlight module and a display device.
  • a backlight module including: a back plate, an optical film, a light guide plate, and a fixing member; the optical film is disposed on a light exit side of the light guide plate, and the back plate Including a bottom plate and a side plate located at at least one end of the bottom plate, the light guide plate is disposed between the optical film material and the bottom plate; and the fixing member includes a first fixing sub-component provided on the side plate And a second fixing sub-member provided on the optical film, the first fixing sub-member is engaged with the second fixing sub-member.
  • the side plate is provided with a first opening
  • the first fixing sub-component includes a fixing structure fixedly provided on the side plate through the first opening and a positioning structure connected to the fixing structure
  • the second fixing sub-component includes a lug provided on at least one end of the optical film material, and each of the lugs is provided with at least one through hole, and the positioning structure passes through the through hole.
  • the fixing structure includes a first strip structure penetrating through the first opening, and a second strip structure and a third strip structure located on both sides of the side plate, respectively.
  • the one end of the first strip structure is connected away from the light guide plate, the second strip structure is attached to the side plate, and the third strip structure and the first strip structure are close to the light guide plate.
  • One end is connected, and the third strip structure is attached to the side plate.
  • the fixed structure further includes a fourth strip structure and a fifth strip structure, the fourth strip structure is parallel to the light exit surface of the light guide plate, and the fifth strip structure and the first strip structure The three strip structures are parallel; and the positioning structure is fixedly disposed on the fifth strip structure along the extending direction of the fifth strip structure.
  • the length of the second strip structure is greater than the length of the third strip structure.
  • the first opening is a blind hole
  • the fixing structure includes the first strip structure, and a part of the first strip structure is engaged in the first opening.
  • a buckle is provided at one end of the first strip-shaped structure, and a part of the first strip-shaped structure is engaged with the first opening through the buckle.
  • the positioning structure is fixedly disposed on the fixed structure along a direction perpendicular to the light guide plate.
  • the aperture of the first opening in the first direction is larger than the thickness of the first strip structure in the first direction, and the first direction is perpendicular to the light exit surface of the light guide plate.
  • the second fixing sub-component includes lugs provided at opposite ends of the optical film material, and each of the lugs is provided with two through holes.
  • the backlight module further includes a plastic frame
  • the plastic frame includes a strip frame and a strip extension structure located inside the strip frame and extending inward
  • the lugs are located by the strip frame In a bending area surrounded by one side of the surface and one side of the strip-shaped extension structure, one end of the positioning structure abuts the strip-shaped extension structure.
  • the plastic frame further includes a first frame strip and a second frame strip disposed on a side of the strip-shaped extension structure near the light guide plate, and an orthographic projection of the first frame strip on the strip frame and The orthographic projection of the second frame bar on the bar frame does not overlap; the bar frame and the first frame bar are used to clamp the side plate; and the bar frame and the first frame Two frame bars are used for clamping the side plate and the fixing structure.
  • a second opening is provided on a side of the strip-shaped extension structure near the light guide plate, and one end of the positioning structure is snapped into the second opening.
  • the second opening is a through hole or a blind hole.
  • a display device including the backlight module.
  • the backlight module includes: a plastic frame, the plastic frame is disposed on a side of the optical film material, and the plastic frame includes a strip frame and a strip-shaped extending structure located inwardly of the strip frame.
  • the display device further includes a display panel disposed in a bent area surrounded by a side of the strip-shaped extending structure away from the optical film material and an inner side surface of the strip frame.
  • the thickness of the second strip structure and the third strip structure are substantially equal.
  • FIG. 1 is a schematic structural diagram of a backlight module according to an embodiment of the present disclosure
  • FIG. 2 is a plan view of the backlight module shown in FIG. 1 when no optical film is assembled;
  • FIG. 3 is a plan view of the backlight module shown in FIG. 1;
  • FIG. 4 is a schematic structural diagram of an optical film provided by an embodiment of the present disclosure.
  • FIG. 5 is a schematic structural diagram of a first fixing sub-component provided by an embodiment of the present disclosure
  • FIG. 6 is a front view of the first fixing sub-component shown in FIG. 5;
  • FIG. 7 is a plan view of the first fixing sub-member shown in FIG. 5;
  • FIG. 8 is a schematic structural diagram of another first fixing sub-component according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic structural diagram of still another first fixing sub-component provided by an embodiment of the present disclosure.
  • FIG. 10 is a schematic structural diagram of another backlight module according to an embodiment of the present disclosure.
  • FIG. 11 is a side view of a plastic frame provided by an embodiment of the present disclosure.
  • FIG. 12 is a bottom view of the plastic frame shown in FIG. 11;
  • FIG. 13 is a schematic structural diagram of a display device according to an embodiment of the present disclosure.
  • the backlight module includes a plastic frame, a light guide plate, and an optical film disposed on a light exit side of the light guide plate.
  • the plastic frame includes a flat plate portion disposed at an edge position of the light guide plate on the light guide plate side.
  • the display panel is supported, and a side of the flat plate portion near the light guide plate is bonded to an edge of the optical film material so as to fix the optical film material.
  • FIG. 1 is a schematic structural diagram of a backlight module according to an embodiment of the present disclosure.
  • the backlight module 10 may include:
  • the back plate 101, the optical film 102, the light guide plate 103, and the fixing member 104 are identical to the fixing member 104.
  • the optical film 102 is disposed on the light-exiting side of the light guide plate 103.
  • the back plate 101 includes a bottom plate 1011 and a side plate 1012 at at least one end of the bottom plate 1011.
  • the light guide plate 103 is disposed between the optical film 102 and the bottom plate 1011.
  • the fixing member 104 includes The first fixing sub-member 1041 on the side plate 1012 and the second fixing sub-member 1042 provided on the optical film material 102 are engaged with each other.
  • side plates 1012 are provided at both ends of the bottom plate 1011.
  • the side plate 1012 may be provided with a first opening H1.
  • the first fixing sub-component 1041 includes a fixing structure 41a fixedly disposed on the side plate 1012 through the first opening H1 and a positioning connected to the fixing structure 41a. Structure 41b.
  • the positioning structure 41b may be a strip structure.
  • the positioning structure 41 b is fixedly disposed on the fixing structure 41 a in a direction perpendicular to the light guide plate 103.
  • the fixed structure and the positioning structure may be an integrated structure, or the fixed structure and the positioning structure may be separate structures, and the first fixed sub-component is obtained by assembling the fixed structure and the positioning structure, which is not limited thereto.
  • FIG. 2 is a top view when the backlight module shown in FIG. 1 is not assembled with an optical film
  • FIG. 3 is a top view of the backlight module shown in FIG. 1, and reference numerals in FIG. 2 and FIG. I will not repeat them here.
  • FIG. 4 is a schematic structural diagram of an optical film provided by an embodiment of the present disclosure.
  • the second fixing sub-member 1042 includes a lug provided on at least one end of the optical film 102, and each lug is disposed on There is at least one through-hole G, and the positioning structure passes through the through-hole G to achieve fixing of the optical film material.
  • the second fixing sub-member 1042 may include lugs provided on opposite ends of the optical film material 102, and each of the lugs is provided with two through holes G.
  • the embodiment of the present disclosure does not Limited to this, for example, when the size of the optical film material is large, lugs may be provided on each side of the optical film material.
  • the positions of the lugs, the number of the lugs, and the positions on each lug The number of through holes is not limited to the above embodiment.
  • the shape of the through hole on the lug matches the shape of the positioning structure, for example, the cross section of the positioning structure is circular, and the through hole on the lug can be set to be a circular through hole; or the cross section of the positioning structure is rectangular,
  • the through holes on the lugs may be rectangular through holes.
  • a first fixing sub-member is provided on a side plate of a back plate, and a second fixing sub-member is provided on an optical film, so that the first fixing sub-member and the second fixing sub-member are provided. It is engaged to fix the optical film relative to the side plate. Due to the high stability of the back plate, when the backlight module is placed vertically or subjected to vibration, the possibility of the optical film shifting is low, so the optical film The high positioning reliability of the material improves the optical quality of the backlight module.
  • the optical film may include a light enhancement sheet and a diffusion sheet.
  • the first fixing sub-member may be made of a metal material or a polycarbonate material.
  • the first opening may be a through hole or a blind hole. According to different shapes of the first opening, different embodiments of the present disclosure provide different first fixing sub-components.
  • the fixing structure 41 a may include a first through-hole through the first opening H1.
  • the strip structure L1 and the second strip structure L2 connected to the end of the first strip structure L1 away from the light guide plate 103, and the second strip structure L2 is attached to the side plate 1012.
  • the fixed structure 41a further includes a third strip structure L3, a fourth strip structure L4, and a fifth strip structure L5 that are connected.
  • One end of the third strip structure L3 is connected to one end of the first strip structure L1 near the light guide plate 103, and the third strip structure L3 is attached to one side of the side plate 1012, and the fourth strip structure L4 is parallel to the light guide plate 103
  • the light-emitting surface of the fifth strip structure L5 is parallel to the third strip structure L3.
  • the positioning structure 41b is fixedly disposed on the fifth strip structure L5 along the extending direction of the fifth strip structure L5.
  • the fixing structure shown in FIG. 5 is similar to a double n-shaped structure, that is, similar to two connected n-shaped structures whose openings are opposite to each other.
  • the fixed structure 41a similar to a double n-shaped connection can pass through a through hole in the side plate 1012. It is placed on the side plate 1012, and then the positioning structure 41b is set on the fixed structure 41a to form the first fixed sub-component 1041.
  • the structure of the first fixed sub-component is simple and easy to implement.
  • the length of the second strip structure L2 may be greater than the length of the third strip structure L3 to ensure stability when the fixed structure is disposed on the side plate.
  • the thickness of the second strip structure and the third strip structure may be substantially equal in design dimensions.
  • a convex structure T may be provided on the side where the second strip structure L2 and / or the third strip structure L3 are attached to the side plate 1012, and the side plate 1012 corresponds to
  • An opening may be provided in the position, and the protruding structure T on the second strip structure L2 and / or the third strip structure L3 is set in the corresponding opening of the side plate, which can further improve the stability of the setting of the fixed structure on the side plate.
  • the aperture of the first opening in the first direction is larger than the thickness of the first strip structure in the first direction, and the first direction is perpendicular to the light exit surface of the light guide plate.
  • the aperture of the first opening in the first direction is larger than the thickness of the first strip structure in the first direction, which facilitates the assembly of the fixed structure and the back plate.
  • the aperture of the first opening in the second direction may be the same as the width of the first strip structure in the second direction, and the second direction is a direction perpendicular to the paper surface on which FIG. 5 is located.
  • FIG. 6 is a front view of the first fixing sub-member shown in FIG. 5
  • FIG. 7 is a top view of the first fixing sub-member shown in FIG. 5, and the reference numerals in FIGS. 6 and 7 refer to the reference numerals in FIG. 5. I won't go into details here.
  • the fixing structure 41 a may include a first strip structure L1 penetrating the first opening H1 and a second strip structure L2 connected to an end of the first strip structure L1 away from the light guide plate 103.
  • the second strip structure L2 and the side plate 1012 Fit on the side.
  • the positioning structure 41 b may be fixedly disposed on the first strip structure L1 along an extending direction perpendicular to the first strip structure L1.
  • the first strip-shaped structure L1 may be attached to the light exit surface of the light guide plate 103. It should be noted that the light guide plate can support the fixed structure to ensure the structural stability of the first fixed sub-component.
  • a protruding structure T may be provided on a side where the second strip structure L2 and the side plate 1012 are bonded, and an opening may be provided at a position corresponding to the side plate 1012.
  • the convex structure T on the strip structure L2 is disposed in the opening corresponding to the side plate, which can further improve the stability of the installation of the fixed structure on the side plate.
  • the fixing structure 41 a includes a first strip structure L1 and a part of the first strip structure L1. Engaged in the first opening H1.
  • the first strip structure L1 may be attached to the light exit surface of the light guide plate 103, and the positioning structure 41 b is fixedly disposed on the first strip structure L1 along an extending direction perpendicular to the first strip structure L1. .
  • the light guide plate supports the fixed structure to ensure the structural stability of the first fixed sub-component.
  • One end of the first strip-shaped structure may be provided with a buckle, and a part of the first strip-shaped structure is engaged with the first opening through the buckle to ensure that the first strip-shaped structure can be fixedly connected to the side plate.
  • fixed structures are exemplary descriptions of the embodiments of the present disclosure, and the fixed structures may also be other structures, which are not described herein again.
  • the backlight module 10 further includes a plastic frame 105.
  • the plastic frame 105 includes a strip frame 1051 and a strip extension structure 1052 on the side of the strip frame 1051.
  • the lugs (the second fixing sub-component 1042) are located on the side of the strip frame 1051 and the side of the strip extension structure 1052. In the enclosed bending area, one end of the positioning structure 41b abuts on the strip-shaped extending structure 1052.
  • FIG. 11 is a side view of a plastic frame provided by an embodiment of the present disclosure.
  • the plastic frame 105 may include a strip frame 1051, a strip extension structure 1052, a first frame strip 1053, and a second frame strip 1054.
  • FIG. 12 is a bottom view of the plastic frame shown in FIG. 11. As shown in FIG. 12, the orthographic projection of the first frame strip 1053 on the strip frame 1051 and the orthographic projection of the second frame strip 1054 on the strip frame 1051 are different. overlapping.
  • a first frame bar (not shown in FIG. 10) and a second frame bar 1054 are disposed on a side of the strip-shaped extending structure 1052 near the light guide plate 103.
  • the strip frame 1051 and the first frame strip can be used to clamp the side plate 1012; the strip frame 1051 and the second frame strip 1054 can be used to clamp the side plate 1012 and the fixing structure 41a.
  • the side plate is clamped by the strip frame of the plastic frame and the first frame, and the side plate is clamped by the strip frame of the plastic frame and the second frame, and the fixing structure can further improve the setting of the fixed structure
  • the stability improves the positioning reliability of the optical film.
  • a side of the strip-shaped extension structure 1052 near the light guide plate may be provided with a second opening H2, and one end of the positioning structure may be snapped into the second opening H2.
  • the second opening may be a through hole or a blind hole.
  • a first fixing sub-member is provided on a side plate of a back plate, and a second fixing sub-member is provided on an optical film, so that the first fixing sub-member and the second fixing sub-member are provided. It is engaged to fix the optical film relative to the side plate. Due to the high stability of the back plate, when the backlight module is placed vertically or subjected to vibration, the possibility of the optical film shifting is low, so the optical film The positioning reliability of the material is high, thereby improving the optical quality of the backlight module.
  • An embodiment of the present disclosure further provides a display device.
  • the display device includes a backlight module 10 as shown in FIG. 1 or FIG. 10.
  • FIG. 13 is a schematic structural diagram of a display device according to an embodiment of the present disclosure.
  • the display device includes a backlight module.
  • the backlight module may include: a plastic frame 105.
  • the plastic frame 105 is disposed on a side of the optical film 102.
  • the plastic frame 105 includes a strip-shaped frame 1051 and a strip-shaped extending structure 1052 extending inwardly from an inner side of the strip-shaped frame 1051.
  • the display device further includes a display panel 20 disposed in a bent area surrounded by a side of the strip-shaped extending structure 1052 away from the optical film 102 and an inner side surface of the strip-shaped frame 1051.
  • the display device provided in the embodiments of the present disclosure may be any product or component having a display function, such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator, and the like.
  • a first fixing sub-member is provided on a side plate of a back plate in a backlight module
  • a second fixing sub-member is provided on an optical film, so that the first fixing sub-member and the second The fixed sub-components are engaged to fix the optical film relative to the side plate. Due to the high stability of the back plate, when the backlight module is placed vertically or subjected to vibration, the possibility of the optical film shifting is low. Therefore, the positioning reliability of the optical film material is high, thereby ensuring the optical quality of the backlight module and further ensuring the display reliability of the display device.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Planar Illumination Modules (AREA)

Abstract

一种背光模组及显示装置。所述背光模组(10)包括：背板(101)、光学膜材(102)、导光板(103)和固定部件(104)；所述光学膜材(102)设置在所述导光板(103)的出光侧，所述背板(101)包括底板(1011)和位于所述底板(1011)至少一端的侧板(1012)，所述导光板(103)设置在所述光学膜材(102)与所述底板(1011)之间；所述固定部件(104)包括设置在所述侧板(1012)上的第一固定子部件(1041)和设置在所述光学膜材(102)上的第二固定子部件(1042)，所述第一固定子部件(1041)与所述第二固定子部件(1042)卡合。

Description

背光模组及显示装置
相关申请的交叉引用
本申请要求于2018年05月30日向CNIPA提交的名称为“背光模组及显示装置”的中国专利申请No.201820829076.9的优先权，其全文通过引用合并于本文。
技术领域
本公开的实施例涉及一种背光模组及显示装置。
背景技术
液晶显示器(LCD)包括液晶显示面板和设置在液晶显示面板一侧的背光模组，背光模组用于为液晶显示面板提供光源。
发明内容
本公开实施例提供了一种背光模组及显示装置。
根据本公开的至少一个实施例，提供一种背光模组，包括：背板、光学膜材、导光板和固定部件；所述光学膜材设置在所述导光板的出光侧，所述背板包括底板和位于所述底板至少一端的侧板，所述导光板设置在所述光学膜材与所述底板之间；以及所述固定部件包括设置在所述侧板上的第一固定子部件和设置在所述光学膜材上的第二固定子部件，所述第一固定子部件与所述第二固定子部件卡合。
例如，所述侧板上设置有第一开口，所述第一固定子部件包括通过所述第一开口固定设置在所述侧板上的固定结构以及与所述固定结构连接的定位结构；以及所述第二固定子部件包括设置在所述光学膜材的至少一端的凸耳，每个所述凸耳上设置有至少一个通孔，所述定位结构穿过所述通孔。
例如，所述固定结构包括贯穿所述第一开口的第一条形结构以及分别位于所述侧板两侧的第二条形结构和第三条形结构，所述第二条形结构与所述第一条形结构远离所述导光板的一端连接，所述第二条形结构与所述侧板贴 合，所述第三条形结构与所述第一条形结构靠近所述导光板的一端连接，所述第三条形结构与所述侧板贴合。
例如，所述固定结构还包括相连的第四条形结构和第五条形结构，所述第四条形结构平行于所述导光板的出光面，所述第五条形结构与所述第三条形结构平行；以及所述定位结构沿所述第五条形结构的延伸方向固定设置在所述第五条形结构上。
例如，所述第二条形结构的长度大于所述第三条形结构的长度。
例如，所述第一开口为盲孔，所述固定结构包括所述第一条形结构，所述第一条形结构的一部分卡合在所述第一开口中。
例如，所述第一条形结构的一端设置有卡扣，所述第一条形结构的一部分通过所述卡扣卡合在所述第一开口中。
例如，所述定位结构沿垂直于所述导光板的方向固定设置在所述固定结构上。
例如，所述第一开口在第一方向上的孔径大于所述第一条形结构在所述第一方向上的厚度，所述第一方向垂直于所述导光板的出光面。
例如，所述第二固定子部件包括设置在所述光学膜材的相对两端的凸耳，每个所述凸耳上设置有两个所述通孔。
例如，所述背光模组还包括：胶框，所述胶框包括条形框和位于所述条形框内侧并向内延伸的条形延伸结构，所述凸耳位于由所述条形框的一面与所述条形延伸结构的一面所围成的弯折区域内，所述定位结构的一端与所述条形延伸结构抵接。
例如，所述胶框还包括设置在所述条形延伸结构靠近所述导光板一面的第一框条和第二框条，所述第一框条在所述条形框上的正投影与所述第二框条在所述条形框上的正投影不重叠；所述条形框与所述第一框条用于夹持所述侧板；以及所述条形框与所述第二框条用于夹持所述侧板以及所述固定结构。
例如，所述条形延伸结构靠近所述导光板的一面上设置有第二开口，所述定位结构的一端卡接在所述第二开口中。
例如，所述第二开口为通孔或盲孔。
根据本公开的至少一个实施例，还提供一种显示装置，包括所述背光模组。
例如，所述背光模组包括：胶框，所述胶框设置在所述光学膜材的侧面，所述胶框包括条形框和位于所述条形框内侧向内延伸的条形延伸结构；所述显示装置还包括：显示面板，所述显示面板设置在由所述条形延伸结构远离所述光学膜材的一面与所述条形框的内侧面所围成的弯折区域内。
例如，所述第二条形结构和第三条形结构的厚度基本相等。
附图说明
以下将结合附图对本公开的实施例进行更详细的说明，以使本领域普通技术人员更加清楚地理解本公开的实施例本公开其中：
图1是本公开实施例提供的背光模组的结构示意图；
图2是图1所示的背光模组未组装有光学膜材时的俯视图；
图3是图1所示的背光模组的俯视图；
图4是本公开实施例提供的光学膜材的结构示意图；
图5是本公开实施例提供的第一固定子部件的结构示意图；
图6是图5所示的第一固定子部件的前视图；
图7是图5所示的第一固定子部件的俯视图；
图8是本公开实施例提供的另一第一固定子部件的结构示意图；
图9是本公开实施例提供的又一第一固定子部件的结构示意图；
图10是本公开实施例提供的另一背光模组的结构示意图；
图11是本公开实施例提供的一种胶框的侧视图；
图12是图11所示的胶框的仰视图；
图13是本公开实施例提供的一种的显示装置的结构示意图。
具体实施方式
下面将结合本公开实施例的附图，对本公开实施例的技术方案进行清楚、完整地描述。显然，所描述的实施例是本公开的一部分实施例，而不是全部的实施例。基于所描述的本公开的实施例，本领域普通技术人员在无需创造性劳动的前提下所获得的所有其他实施例，都属于本公开保护的范围。
除非另外定义，本公开使用的技术术语或者科学术语应当为本公开所属领域内具有一般技能的人士所理解的通常意义。本公开中使用的“第一”、“第 二”以及类似的词语并不表示任何顺序、数量或者重要性，而只是用来区分不同的组成部分。“包括”或者“包含”等类似的词语意指出现该词前面的元件或者物件涵盖出现在该词后面列举的元件或者物件及其等同，而不排除其他元件或者物件。“连接”或者“相连”等类似的词语并非限定于物理的或者机械的连接，而是可以包括电性的连接，不管是直接的还是间接的。“上”、“下”、“左”、“右”等仅用于表示相对位置关系，当被描述对象的绝对位置改变后，则该相对位置关系也可能相应地改变。
背光模组包括胶框、导光板以及设置在导光板的出光侧的光学膜材，胶框包括设置在导光板的出光侧的边缘位置的平板部，该平板部远离导光板的一侧用于支撑显示面板，该平板部靠近导光板的一侧与光学膜材的边缘贴合，以起到固定光学膜材的作用。
发明人注意到，当液晶显示器竖直放置或受到振动后，光学膜材易发生褶皱，或者，光学膜材的边缘可能从平板部与导光板之间脱离，光学膜材的定位可靠性较差，导致背光模组的出光品质的稳定性较低。
图1是本公开实施例提供的一种背光模组的结构示意图，如图1所示，该背光模组10可以包括：
背板101、光学膜材102、导光板103和固定部件104。
光学膜材102设置在导光板103的出光侧，背板101包括底板1011和位于底板1011至少一端的侧板1012，导光板103设置在光学膜材102与底板1011之间；固定部件104包括设置在侧板1012上的第一固定子部件1041和设置在光学膜材102上的第二固定子部件1042，第一固定子部件1041与第二固定子部件1042卡合。
例如，在图1中，底板1011的两端都设置有侧板1012。
例如，继续参见图1，侧板1012上可以设置有第一开口H1，第一固定子部件1041包括通过第一开口H1固定设置在侧板1012上的固定结构41a以及与固定结构41a连接的定位结构41b。定位结构41b可以为条形结构。定位结构41b沿垂直于导光板103的方向固定设置在固定结构41a上。例如，固定结构与定位结构可以为一体结构，或者，固定结构和定位结构可以为单独的结构，第一固定子部件由固定结构与定位结构组装得到，对此不做限定。
示例的，图2是图1所示的背光模组未组装有光学膜材时的俯视图，图 3是图1所示的背光模组的俯视图，图2和图3中的标号参考图1中的标号，在此不做赘述。
图4是本公开实施例提供的一种光学膜材的结构示意图，如图4所示，第二固定子部件1042包括设置在光学膜材102的至少一端的凸耳，每个凸耳上设置有至少一个通孔G，定位结构穿过通孔G，以实现对光学膜材的固定。
示例的，参见图4，第二固定子部件1042可以包括设置在光学膜材102的相对两端的凸耳，每个凸耳上设置有两个通孔G，但是，本公开的实施例并不限于此，例如，当光学膜材的尺寸较大时，光学膜材的每条边上均可以设置凸耳，本公开实施例中凸耳的设置位置、设置个数以及每个凸耳上设置的通孔个数不限于上面的实施例。
例如，凸耳上通孔的形状与定位结构的形状相匹配，例如，定位结构的截面呈圆形，可以设置凸耳上的通孔为圆形通孔；或者，定位结构的截面呈矩形，可以设置凸耳上的通孔为矩形通孔。
本公开实施例提供的背光模组，通过在背板的侧板上设置第一固定子部件，以及在光学膜材上设置第二固定子部件，将第一固定子部件与第二固定子部件卡合以使光学膜材相对于侧板固定设置，由于背板的稳定性较高，当背光模组竖直放置或受到振动后，光学膜材发生偏移的可能性较低，因此光学膜材的定位可靠性较高，提高了背光模组的光学品质。
例如，光学膜材可以包括增光片和扩散片。第一固定子部件可以由金属材料或聚碳酸酯材料制成。
需要说明的是，上述第一开口可以为通孔，也可以为盲孔，根据第一开口的不同形状，本公开实施例分别提供了不同的第一固定子部件。
例如，当第一开口为通孔，提供了两种第一固定子部件，分别包括：第一种第一固定子部件，如图5所示，固定结构41a可以包括贯穿第一开口H1的第一条形结构L1以及与第一条形结构L1远离导光板103的一端连接的第二条形结构L2，第二条形结构L2与侧板1012贴合。例如，如图5所示，固定结构41a还包括相连的第三条形结构L3、第四条形结构L4和第五条形结构L5。第三条形结构L3的一端与第一条形结构L1靠近导光板103的一端连接，且第三条形结构L3与侧板1012的一面贴合，第四条形结构L4平行于导光板103的出光面，第五条形结构L5与第三条形结构L3平行。定位结构41b沿第五条形结构L5的延伸方向固定设置在第五条形结构L5上。
图5所示的固定结构为类似双n字型结构，即，类似于开口朝向相反的两个相连的n形结构，类似双n字型相连的固定结构41a可以通过侧板1012上的通孔安置在侧板1012上，再将定位结构41b设置在固定结构41a上以形成第一固定子部件1041，第一固定子部件的结构简单且便于实现。例如，第二条形结构L2的长度可以大于第三条形结构L3的长度，以保证固定结构设置在侧板上时的稳定性。第二条形结构和第三条形结构的厚度可以在设计尺寸上基本相等。
例如，在如图5所示的固定结构中，第二条形结构L2和/或第三条形结构L3与侧板1012贴合的一面上可以设置有凸起结构T，侧板1012对应的位置可以设置有开口，将第二条形结构L2和/或第三条形结构L3上的凸起结构T设置在侧板对应的开口中，可以进一步提高固定结构在侧板上的设置稳定性。
例如，第一开口在第一方向上的孔径大于第一条形结构在第一方向上的厚度，该第一方向垂直于导光板的出光面。设置第一开口在第一方向上孔径大于第一条形结构在第一方向上的厚度，便于实现固定结构与背板的组装。另外，第一开口在第二方向上的孔径可以与第一条形结构的第二方向上的宽度相同，该第二方向为垂直于图5所在纸面的方向。
示例的，图6是图5所示的第一固定子部件的前视图，图7是图5所示的第一固定子部件的俯视图，图6和图7中的标号参考图5中的标号，在此不做赘述。
如图8所示，提供另一固定结构。固定结构41a可以包括贯穿第一开口H1的第一条形结构L1以及与第一条形结构L1远离导光板103的一端连接的第二条形结构L2，第二条形结构L2与侧板1012的一面贴合。例如，如图8所示，定位结构41b可以沿垂直于第一条形结构L1的延伸方向固定设置在第一条形结构L1上。
例如，如图8所示，第一条形结构L1可以与导光板103的出光面贴合。需要说明的是，导光板可以对固定结构起到支撑作用，以保证第一固定子部件的结构稳定性。
例如，在如图8所示的固定结构中，第二条形结构L2与侧板1012贴合的一面上可以设置有凸起结构T，侧板1012对应的位置可以设置有开口，将第二条形结构L2上的凸起结构T设置在侧板对应的开口中，可以进一步提 高固定结构在侧板上的设置稳定性。
例如，当第一开口为盲孔，提供了一种固定结构，包括：第三种固定结构，如图9所示，固定结构41a包括第一条形结构L1，第一条形结构L1的一部分卡合在第一开口H1中。
例如，如图9所示，第一条形结构L1可以与导光板103的出光面贴合，定位结构41b沿垂直于第一条形结构L1的延伸方向固定设置在第一条形结构L1上。导光板对固定结构起到支撑作用，以保证第一固定子部件的结构稳定性。
第一条形结构的一端可以设置有卡扣，第一条形结构的一部分通过卡扣卡合在第一开口中，以保证第一条形结构能够与侧板固定连接。
需要说明的是，上述三种固定结构为本公开实施例的示例性说明，固定结构还可以为其他结构，在此不做赘述。
例如，如图10所示，背光模组10还包括：胶框105。胶框105包括条形框1051和位于条形框1051侧面的条形延伸结构1052，例如，凸耳(第二固定子部件1042)位于由条形框1051的一面与条形延伸结构1052的一面所围成的弯折区域内，定位结构41b的一端与条形延伸结构1052抵接。
图11是本公开实施例提供的一种胶框的侧视图，如图11所示，胶框105可以包括条形框1051、条形延伸结构1052、第一框条1053和第二框条1054。图12是图11所示的胶框的仰视图，如图12所示，第一框条1053在条形框1051上的正投影与第二框条1054在条形框1051上的正投影不重叠。
例如，结合图10，第一框条(图10中未画出)和第二框条1054设置在条形延伸结构1052靠近导光板103一面。条形框1051与第一框条可以用于夹持侧板1012；条形框1051与第二框条1054可以用于夹持侧板1012以及固定结构41a。
需要说明的是，通过胶框的条形框与第一框条夹持侧板，并通过胶框的条形框与第二框条夹持侧板以及固定结构，可以进一步提高固定结构的设置稳定性，提高了对光学膜材的定位可靠性。
例如，如图12所示，条形延伸结构1052靠近导光板的一面上可以设置有第二开口H2，定位结构的一端可以卡接在第二开口H2中。将定位结构的一端卡接在条形延伸结构上的第二开口中，可以防止定位结构移动而导致光学膜材滑脱，进一步提高对光学膜材的定位可靠性。例如，第二开口可以为 通孔或盲孔。
本公开实施例提供的背光模组，通过在背板的侧板上设置第一固定子部件，以及在光学膜材上设置第二固定子部件，将第一固定子部件与第二固定子部件卡合以使光学膜材相对于侧板固定设置，由于背板的稳定性较高，当背光模组竖直放置或受到振动后，光学膜材发生偏移的可能性较低，因此光学膜材的定位可靠性较高，从而提高了背光模组的光学品质。
本公开实施例还提供一种显示装置，该显示装置包括：如图1或图10所示的背光模组10。
示例的，图13是本公开实施例提供的一种的显示装置的结构示意图，该显示装置包括背光模组，背光模组可以包括：胶框105，胶框105设置在光学膜材102的侧面，胶框105包括条形框1051和位于条形框1051的内侧面向内延伸的条形延伸结构1052。显示装置还包括：显示面板20，显示面板20设置在由条形延伸结构1052远离光学膜材102的一面与条形框1051的内侧面所围成的弯折区域内。
本公开实施例提供的显示装置可以为手机、平板电脑、电视机、显示器、笔记本电脑、数码相框、导航仪等任何具有显示功能的产品或部件。
本公开实施例提供的显示装置，通过在背光模组中背板的侧板上设置第一固定子部件，以及在光学膜材上设置第二固定子部件，将第一固定子部件与第二固定子部件卡合以使光学膜材相对于侧板固定设置，由于背板的稳定性较高，当背光模组竖直放置或受到振动后，光学膜材发生偏移的可能性较低，因此光学膜材的定位可靠性较高，从而保证了背光模组的光学品质，进而保证了显示装置的显示可靠性。
以上所述仅为本公开的示例性实施例，并不用以限制本公开，凡在本公开的原理之内所作的任何修改、等同替换、改进等，均应包含在本公开的保护范围之内。

Claims (17)

  1. 一种背光模组，包括：
    背板、光学膜材、导光板和固定部件；
    其中，所述光学膜材设置在所述导光板的出光侧，所述背板包括底板和位于所述底板至少一端的侧板，所述导光板设置在所述光学膜材与所述底板之间；以及
    所述固定部件包括设置在所述侧板上的第一固定子部件和设置在所述光学膜材上的第二固定子部件，所述第一固定子部件与所述第二固定子部件卡合。
    背板，所述背板具有底板和侧板，所述侧板位于底板至少一端；
    导光板，所述导光板在底板之上，并具有出光面；
    光学膜材，所述光学膜材在所述导光板的出光面一侧；
    固定部件，所述固定部件具有第一固定子部件和第二固定子部件；
    其中，所述第一固定子部件设置在所述侧板上，所述第二固定子部件设置在所述光学膜材上，所述第一固定子部件与所述第二固定子部件配合固定所述光学膜材。
  2. 根据权利要求1所述的背光模组，其中，所述侧板上设置有第一开口，所述第一固定子部件包括通过所述第一开口固定设置在所述侧板上的固定结构以及与所述固定结构连接的定位结构；以及
    所述第二固定子部件包括设置在所述光学膜材的至少一端的凸耳，每个所述凸耳上设置有至少一个通孔，所述定位结构穿过所述通孔。
  3. 根据权利要求2所述的背光模组，其中，所述固定结构包括贯穿所述第一开口的第一条形结构以及分别位于所述侧板两侧的第二条形结构和第三条形结构，所述第二条形结构与所述第一条形结构远离所述导光板的一端连接，所述第二条形结构与所述侧板贴合，所述第三条形结构与所述第一条形结构靠近所述导光板的一端连接，所述第三条形结构与所述侧板贴合。
  4. 根据权利要求3所述的背光模组，其中，所述固定结构还包括相连的 第四条形结构和第五条形结构，所述第四条形结构平行于所述导光板的出光面，所述第五条形结构与所述第三条形结构平行；以及
    所述定位结构沿所述第五条形结构的延伸方向固定设置在所述第五条形结构上。
  5. 根据权利要求4所述的背光模组，其中，
    所述第二条形结构的长度大于所述第三条形结构的长度。
  6. 根据权利要求3-5任一项所述的背光模组，其中，所述第一开口为盲孔，所述固定结构包括所述第一条形结构，所述第一条形结构的一部分卡合在所述第一开口中。
  7. 根据权利要求6所述的背光模组，其中，
    所述第一条形结构的一端设置有卡扣，所述第一条形结构的一部分通过所述卡扣卡合在所述第一开口中。
  8. 根据权利要求2至7任一项所述的背光模组，其中，所述定位结构沿垂直于所述导光板的方向固定设置在所述固定结构上。
  9. 根据权利要求3至5任一项所述的背光模组，其中，
    所述第一开口在第一方向上的孔径大于所述第一条形结构在所述第一方向上的厚度，所述第一方向垂直于所述导光板的出光面。
  10. 根据权利要求2至7任一项所述的背光模组，其中，
    所述第二固定子部件包括设置在所述光学膜材的相对两端的凸耳，每个所述凸耳上设置有两个所述通孔。
  11. 根据权利要求2至7任一项所述的背光模组，其中，所述背光模组还包括：胶框，
    所述胶框包括条形框和位于所述条形框内侧并向内延伸的条形延伸结构，所述凸耳位于由所述条形框的一面与所述条形延伸结构的一面所围成的 弯折区域内，所述定位结构的一端与所述条形延伸结构抵接。
  12. 根据权利要求11所述的背光模组，其中，所述胶框还包括设置在所述条形延伸结构靠近所述导光板一面的第一框条和第二框条，所述第一框条在所述条形框上的正投影与所述第二框条在所述条形框上的正投影不重叠；
    所述条形框与所述第一框条用于夹持所述侧板；以及
    所述条形框与所述第二框条用于夹持所述侧板以及所述固定结构。
  13. 根据权利要求11所述的背光模组，其中，所述条形延伸结构靠近所述导光板的一面上设置有第二开口，所述定位结构的一端卡接在所述第二开口中。
  14. 根据权利要求13所述的背光模组，其中，
    所述第二开口为通孔或盲孔。
  15. 一种显示装置，包括：如权利要求1至14任一项所述的背光模组。
  16. 根据权利要求15所述的显示装置，其中，所述背光模组包括：胶框，所述胶框设置在所述光学膜材的侧面，所述胶框包括条形框和位于所述条形框内侧向内延伸的条形延伸结构；
    所述显示装置还包括：
    显示面板，所述显示面板设置在由所述条形延伸结构远离所述光学膜材的一面与所述条形框的内侧面所围成的弯折区域内。
  17. 根据权利要求3所述的背光模组，其中，所述第二条形结构和第三条形结构的厚度基本相等。
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