WO2020135267A1 - 背光模组及显示设备 - Google Patents

背光模组及显示设备 Download PDF

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Publication number
WO2020135267A1
WO2020135267A1 PCT/CN2019/127127 CN2019127127W WO2020135267A1 WO 2020135267 A1 WO2020135267 A1 WO 2020135267A1 CN 2019127127 W CN2019127127 W CN 2019127127W WO 2020135267 A1 WO2020135267 A1 WO 2020135267A1
Authority
WO
WIPO (PCT)
Prior art keywords
plate
positioning
backlight module
step surface
installation space
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2019/127127
Other languages
English (en)
French (fr)
Inventor
董晓旭
华巍
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen TCL New Technology Co Ltd
Original Assignee
Shenzhen TCL New Technology Co Ltd
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 Shenzhen TCL New Technology Co Ltd filed Critical Shenzhen TCL New Technology Co Ltd
Priority to US17/251,221 priority Critical patent/US11269134B2/en
Priority to EP19906452.8A priority patent/EP3904953B1/en
Publication of WO2020135267A1 publication Critical patent/WO2020135267A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • 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
    • 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
    • G02B6/0055—Reflecting element, sheet or layer
    • 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
    • G02F1/133308—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
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
    • 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
    • G02F2202/00—Materials and properties
    • G02F2202/28—Adhesive materials or arrangements

Definitions

  • the present application relates to the technical field of display devices, in particular to a backlight module and a display device using the backlight module.
  • the module structure of the existing liquid crystal display device can be summarized into two types.
  • the first structure includes (from outside to inside) a front frame, a plastic frame, a diaphragm, a light guide plate, a reflection sheet, and a back plate, and a light guide plate It is installed on the backplane with the reflective sheet, the plastic frame is installed on the periphery of the backplane and is connected to the light guide plate, the film and the screen are installed on the plastic frame, and the front frame is sleeved on the periphery of the plastic frame and the screen, resulting in a large number of module structural components. Module assembly is complex and costly;
  • the second architecture includes (from outside to inside) a middle frame, a diaphragm, a light guide plate, a reflection sheet, and a back plate.
  • the middle frame is installed on the periphery of the back plate, and the reflector, light guide plate, and diaphragm are installed on the back in order.
  • the screen is installed on the middle frame, the assembly of the module is complicated, and there are no decorative parts, and the appearance is single.
  • the main purpose of the present application is to provide a backlight module and a display device, and aims to provide a backlight module which is easy to assemble, low in cost, and can be processed in a variety of appearances.
  • a backlight module proposed in this application includes:
  • the back plate includes a bottom plate, side plates provided around the bottom plate, and a bent portion formed by bending the side plate, the bottom plate, the side plate, and the bent portion form an installation space , A side of the bent portion facing away from the bottom plate is provided with a limit step, and the bent portion includes an upper step surface and a lower step surface connected to the limit step;
  • the reflection sheet is accommodated in the installation space and arranged on the bottom plate;
  • a light guide plate accommodated in the installation space and provided on the side of the reflective sheet facing away from the bottom plate;
  • the diaphragm is accommodated in the installation space and provided on a side of the light guide plate facing away from the reflective sheet.
  • the upper step surface is concavely provided with a receiving groove adjacent to the lower step surface, the receiving groove is provided with a mounting ear, the mounting ear is provided adjacent to the limit step, and the diaphragm is adjacent to the A positioning portion is provided on one side of the lower step surface, the positioning portion defines a positioning hole, and the positioning hole is sleeved on the mounting ear.
  • the positioning portion includes a positioning plate disposed perpendicularly to the diaphragm, and a positioning step disposed at an angle to the positioning plate, the positioning hole is disposed at the positioning step, and the diaphragm It is an integrally formed structure with the positioning part.
  • the backlight module further includes a support plate detachably provided in the receiving slot, the support plate is protrudingly provided with the hanging ear adjacent to the limit step, and the positioning hole is sleeved on During the mounting ear, the positioning portion is in contact with the support plate.
  • two ends of the supporting plate are provided with through holes, and the bottom wall of the receiving groove is provided with matching holes corresponding to the two through holes.
  • the two bolts are threaded through a through hole and a matching hole, respectively.
  • the support plate is detachably fixed in the receiving groove.
  • two locking pieces are provided on the bottom wall of the receiving slot, two of the locking pieces are located at both ends of the support plate, and each locking piece cooperates with the bottom wall of the receiving slot to form a locking slot , The two ends of the supporting plate are respectively inserted into the clamping slots.
  • each locking member includes a connecting plate and a baffle disposed at an angle to the connecting plate, the connecting plate is accommodated in the receiving groove, and an end of the baffle away from the connecting plate is The lower step surface abuts, and the connecting plate, the baffle plate, and the bottom wall of the receiving groove cooperate to form the locking groove.
  • the backlight module further includes a positioning member, and the positioning block is accommodated in the installation space and clamped between the side plate and the light guide plate.
  • two adjacent side plates are connected by welding; and/or two adjacent bending portions are connected by welding.
  • the bottom plate, the side plates, and the bending portion are integrally formed by bending.
  • two adjacent side plates and two bent portions cooperate to form a chamfer.
  • the present application also provides a display device including the above-mentioned backlight module and a display panel, the backlight module includes:
  • the back plate includes a bottom plate, side plates provided around the bottom plate, and a bent portion formed by bending the side plate, the bottom plate, the side plate, and the bent portion enclose to form an installation space ,
  • a side of the bent portion facing away from the bottom plate is provided with a limit step, and the bent portion includes an upper step surface and a lower step surface connected to the limit step;
  • the reflection sheet is accommodated in the installation space and arranged on the bottom plate;
  • a light guide plate accommodated in the installation space and provided on the side of the reflective sheet facing away from the bottom plate;
  • the display panel covers the opening of the installation space and is connected to the lower step surface.
  • the upper step surface is concavely provided with a receiving groove adjacent to the lower step surface, the receiving groove is provided with a mounting ear, the mounting ear is provided adjacent to the limit step, and the diaphragm is adjacent to the A positioning portion is provided on one side of the lower step surface, the positioning portion defines a positioning hole, and the positioning hole is sleeved on the mounting ear.
  • the positioning portion includes a positioning plate disposed perpendicular to the diaphragm, and a positioning step disposed at an angle with the positioning plate, the positioning hole is disposed at the positioning step, the diaphragm It is an integrally formed structure with the positioning part.
  • the backlight module further includes a support plate detachably provided in the receiving slot, the support plate is protrudingly provided with the hanging ear adjacent to the limit step, and the positioning hole is sleeved on During the mounting ear, the positioning portion is in contact with the support plate.
  • two ends of the supporting plate are provided with through holes, and the bottom wall of the receiving groove is provided with matching holes corresponding to the two through holes.
  • the two bolts are threaded through a through hole and a matching hole, respectively.
  • the support plate is detachably fixed in the receiving groove.
  • two locking pieces are provided on the bottom wall of the receiving slot, two of the locking pieces are located at both ends of the support plate, and each locking piece cooperates with the bottom wall of the receiving slot to form a locking slot , The two ends of the supporting plate are respectively inserted into the clamping slots.
  • each locking member includes a connecting plate and a baffle disposed at an angle to the connecting plate, the connecting plate is accommodated in the receiving groove, and an end of the baffle away from the connecting plate is The lower step surface abuts, and the connecting plate, the baffle, and the bottom wall of the receiving groove cooperate to form the clamping groove.
  • an adhesive layer is provided between the display panel and the lower step surface, and the display panel is connected to the lower step surface through the adhesive layer.
  • the bent portion is a bent plate bent toward the installation space at an end of the side plate away from the bottom plate, and the bent portion is disposed parallel to the display panel.
  • the bottom plate, the side plates, and the bent portion of the back plate enclose to form an installation space
  • the reflection sheet is accommodated in the installation space and is provided on the bottom plate
  • the light guide plate is accommodated in the installation space and is provided on the back of the reflection sheet
  • the diaphragm is accommodated in the installation space and is provided on the side of the light guide plate facing away from the reflective sheet.
  • the side plate of the back plate is bent to form a bent portion, and a limit step is provided on the bent portion, so that the bent portion is formed with an upper step surface and a lower step surface connected to the limit step.
  • the decorative parts are provided on the upper step surface to realize the changeable appearance effect; by using the bottom plate, the side plates, and the bent portion of the back plate, the assembly of the components of the backlight module is completed, so that the structure of the backlight module is simple; further, By closing the display panel to the opening of the installation space and connecting to the lower step surface, the borderless frame of the backlight module is effectively realized, the thickness of the backlight module is reduced, and there are few structural parts, the module assembly is simple, and the cost is low.
  • FIG. 1 is a partial cross-sectional view of a backlight module according to Embodiment 1 of the present application;
  • FIG. 2 is a partial structural schematic diagram of a backlight module according to Embodiment 1 of the present application.
  • fixed may be a fixed connection, a detachable connection, or integrated; It can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediary. It can be the connection between two elements or the interaction between two elements, unless otherwise clearly defined.
  • This application proposes a backlight module and a display device.
  • the display device includes a backlight module and a display panel.
  • the backlight module includes:
  • the back plate 10 includes a bottom plate 11, side plates 12 provided around the bottom plate 11, and a bent portion 13 formed by bending the side plate 12.
  • the bottom plate 11, the side plate 12, and the bent portion 13 form an installation space 14.
  • the side of the bending portion 13 facing away from the bottom plate 11 is provided with a limiting step 133.
  • the bending portion 13 includes an upper step surface 131 and a lower step surface 132 connected to the limiting step 133;
  • the reflection sheet 20 is accommodated in the installation space 14 and is provided on the bottom plate 11;
  • the light guide plate 30 is accommodated in the installation space 14 and is provided on the side of the reflective sheet facing away from the bottom plate 11;
  • the membrane 40 is accommodated in the installation space 14 and is provided on the side of the light guide plate facing away from the reflection sheet;
  • the display panel 50 covers the opening of the installation space 14 and is connected to the lower step surface 132.
  • the bent portion 13 is a folded plate that is bent toward the installation space 14 at the end of the side plate 12 away from the bottom plate 11.
  • the folded plate is disposed parallel to the display panel 50.
  • the folded plate may be slightly inclined to the display panel 50.
  • the bottom plate 11, the side plate 12, and the bending portion 13 are integrally formed by bending, and the bending process includes a bending process such as punching the back plate 10, so the processing force during the forming process makes The structural strength of the backplane 10 is enhanced, resulting in a reduction in the thickness of the backplane 10, so that the display device is extremely thin.
  • two adjacent side plates 12 are connected by welding; two adjacent bending portions 13 are connected by welding.
  • the gap between the two adjacent side plates 12 and the two adjacent bending portions 13 is conceived by welding, thereby improving the integrity, closure and structure of the back plate 10 Small impurities such as strength and dust will not enter the liquid crystal display device, and will not.
  • the two adjacent side plates 12 and the two bent portions 13 cooperate to form a chamfer, so that the welding place of the two bent portions 13 is in a shape inclined at 45°, avoiding the back plate 10 corners are subjected to secondary chamfering.
  • the bottom plate 11, the side plate 12 provided around the bottom plate 11, and the folded plate bent from the end of the side plate 12 away from the bottom plate 11 form an installation space with an opening, the reflective sheet 20, the light guide plate 30,
  • the diaphragm 40, the positioning member, and other electronic components are placed into the installation space through the opening, wherein the reflective sheet 20 is provided on the bottom plate 11, the light guide plate 30 is disposed on the side of the reflective sheet 20 facing away from the bottom plate 11, the diaphragm 40 is provided on the side of the light guide plate 30 facing away from the reflective sheet 20.
  • the light guide plate 30 scatters the light to the surroundings, wherein the reflective sheet 20 effectively reflects the light back to the light guide plate 30, improving the light utilization rate
  • the diaphragm 40 located on the light guide plate 30 effectively plays a uniform light, and gathers a large angle of light for frontal observation.
  • the side plate 12 of the back plate 10 is bent to form a bent portion 13, and a limit step 133 is provided on the bent portion 13, so that the bent portion 13 is formed with an upper step surface 131 connected to the limit step 133 And the lower step surface 132, a decorative piece can be provided on the upper step surface 131 to achieve a variety of appearance effects; by using the bottom plate 11, the side plate 12, and the bending portion 13 of the back plate 10, the components of the backlight module are completed The assembly of the backlight module makes the structure of the backlight module simple; further, by covering the display panel 50 with the opening of the installation space 14 and connected to the lower step surface 132, the borderless frame of the backlight module is effectively realized, and the backlight module is reduced The thickness is small, and there are few structural parts, the module is easy to assemble, and the cost is low.
  • the upper step surface 131 is concavely provided with a receiving groove 1311 adjacent to the lower step surface 132, and the mounting groove 1311 is provided with a mounting ear 621, the mounting ear 621 is provided adjacent to the limiting step 133, and the diaphragm 40 is adjacent to the lower step surface 132
  • a positioning portion 41 is provided on one side of the housing.
  • the positioning portion 41 defines a positioning hole 4121.
  • the positioning hole 4121 is sleeved on the mounting ear 621.
  • the mounting ear 621 is located in the receiving slot 1311, on the one hand, it effectively hides the mounting ear 621, and on the other hand, it effectively reduces the space occupation.
  • the positioning portion 41 includes a positioning plate 411 perpendicular to the diaphragm 40, and a positioning plate 411 is a positioning step 412 provided at an angle, and a positioning hole 4121 is provided at the positioning step 412.
  • the diaphragm 40 and the positioning portion 41 are of an integrated molding structure, which is beneficial to production;
  • the diaphragm 40 When the diaphragm 40 is sleeved on the mounting ear 621 through the positioning hole 4121, a part of the positioning part 41 is accommodated in the receiving groove 1311, and the other part of the positioning part 41 is located between the lower step surface 132 and the display panel 50.
  • the membrane 40 is fixed on the back plate 10 in a hanging manner, on the other hand, it is effectively hidden.
  • an adhesive layer is provided between the display panel 50 and the lower step surface 132, and the display panel 50 is connected to the lower step surface 132 through the adhesive layer.
  • the adhesive layer may be an EVA adhesive layer, glue, or double-sided adhesive.
  • the thickness of the adhesive layer is greater than the thickness of the positioning step 412 of the positioning portion 41, which effectively prevents the positioning portion 41 and the display panel 50 from affecting each other, and realizes the fixed installation of the display panel 50. In order to facilitate disassembly and maintenance of the display panel 50 in the future.
  • the backlight module further includes a support plate 62 detachably disposed in the receiving slot 1311.
  • the support plate 62 protrudes a mounting ear 621 adjacent to the limiting step 133, and the positioning hole 4121 is sleeved on the mounting ear 621 , The positioning portion 41 is in contact with the support plate 62.
  • two ends of the supporting plate 62 are provided with through holes 622
  • the bottom wall of the receiving slot 1311 is provided with matching holes 1312 corresponding to the two through holes 622
  • two bolts 70 are respectively passed through a through hole 622 and a matching hole 1312
  • the threaded connection detachably fixes the support plate 62 in the receiving slot 1311.
  • the bottom wall of the receiving slot 1311 is provided with two locking members 61.
  • the two locking members 61 are located at both ends of the support plate 62.
  • Each locking member 61 is formed in cooperation with the bottom wall of the receiving slot 1311. The card slot, the two ends of the support plate 62 are inserted into the card slot.
  • Each locking member 61 is provided with a corresponding hole 611 corresponding to a through hole 622, and two bolts 70 are threaded through a corresponding hole 611 and a through hole 622 and a matching hole 1312, so that the locking member 61 is fixed in the receiving slot 1311
  • the two ends of the support plate 62 are limited to the locking groove formed by the locking member 61 and the bottom wall of the receiving groove 1311 Inside, it effectively avoids loosening between the support plate 62 and the bolt 70, and is also convenient for disassembly, which is beneficial to maintenance.
  • each locking member 61 includes a connecting plate and a baffle disposed at an angle with the connecting plate.
  • the connecting plate is accommodated in the receiving groove 1311, and the end of the baffle away from the connecting plate abuts the lower step surface 132.
  • the connecting plate , The baffle, and the bottom wall of the receiving slot 1311 cooperate to form a card slot.
  • the connecting plate and the baffle can be integrally formed with the locking piece 61 during the integral stamping and forming process of the locking piece 61, which is beneficial to production; in this embodiment, the end of the connecting plate away from the baffle abuts the limit step 133 and the lower step At the connection of the surface 132, the end of the support plate 62 is limited between the baffle and the bottom wall of the receiving slot 1311, and the weight of the support plate 62 is supported by the connection plate to achieve secondary fixation;
  • the backlight module of this embodiment further includes a positioning member, and the positioning block is accommodated in the installation space 14 and sandwiched between the side plate 12 and the light guide plate 30.
  • the width or length of the light guide plate 30 matches the size between the two side walls of the opening of the installation space 14, and the positioning block is clamped between the side plate 12 and the light guide plate 30 to effectively fix the light guide plate 30 In the installation space 14, at the same time, the light guide plate 30 is arranged corresponding to the opening of the installation space 14.
  • the positioning member includes three, one end of the three positioning members respectively abuts the inner left, right side wall and the top wall of the installation space 14, and the other ends of the three positioning members respectively abut the light guide plate 30
  • the left and right side walls and the top wall are effectively fixed, simple disassembly and assembly, and low cost.
  • the present application also provides a display device including the above-mentioned backlight module.
  • the structure of the backlight module may refer to the above-mentioned embodiment, which will not be repeated here.
  • the display device of this embodiment adopts the above technical solution of the backlight module, the display device has all the functions of the above backlight module.

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (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设备，该背光模组包括：背板（10），包括底板（11）、侧板（12）、以及弯折部（13），底板（11）、侧板（12）、以及弯折部（13）围合形成安装空间（14）；反射片（20），设于底板（11）上；导光板（30），设于反射片（20）背向底板（11）的一侧；膜片（40），设于导光板（30）背向反射片（20）的一侧。

Description

背光模组及显示设备
本申请要求2018年12月28日申请的，申请号201811631377.1，名称为“背光模组及显示设备”的中国专利申请的优先权，在此将其全文引入作为参考。
技术领域
本申请涉及显示装置技术领域，特别涉及一种背光模组及应用该背光模组的显示设备。
 背景技术
目前，现有的液晶显示装置的模组架构归纳为两种，第一种架构为（从外到里）包括前框、胶框、膜片、导光板、反射片、及背板，导光板和反射片安装于背板，胶框安装于背板的周缘并与导光板连接，胶片和屏幕安装于胶框上，前框套设于胶框和屏幕周缘，致使模组架构结构件多，模组组装复杂，且成本高；
第二种架构为（从外到里）包括中框、膜片、导光板、反射片、及背板，中框安装于背板周缘，反光片、导光板、及膜片按顺序安装于背板上，屏幕安装于中框上，模组组装复杂，且无处设置装饰件，外观单一。
 技术解决方案
本申请的主要目的是提供一种背光模组及显示设备，旨在提供一种模组组装简易，成本低，且可多变外观处理的背光模组。
为实现上述目的，本申请提出的一种背光模组，包括：
背板，包括底板、设于所述底板四周的侧板、及由所述侧板弯折形成的弯折部，所述底板、所述侧板、及所述弯折部围合形成安装空间，所述弯折部背向所述底板的一侧设有限位台阶，所述弯折部包括连接于所述限位台阶的上台阶面和下台阶面；
反射片，容纳于所述安装空间内并设于所述底板上；
导光板，容纳于所述安装空间并设于所述反射片背向所述底板的一侧；
膜片，容纳于所述安装空间并设于所述导光板背向所述反射片的一侧。
可选地，所述上台阶面邻近所述下台阶面凹设有收容槽，所述收容槽内设有挂耳，所述挂耳邻近所述限位台阶设置，所述膜片邻近所述下台阶面的一侧设有定位部，所述定位部开设定位孔，所述定位孔套设于所述挂耳。
可选地，所述定位部包括与所述膜片呈垂直设置的定位板、和与所述定位板呈夹角设置的定位台阶，所述定位孔设于所述定位台阶，所述膜片和所述定位部为一体成型结构。
可选地，所述背光模组还包括可拆卸地设于所述收容槽内的支撑板，所述支撑板邻近所述限位台阶凸设有所述挂耳，所述定位孔套设于所述挂耳时，所述定位部与所述支撑板抵接。
可选地，所述支撑板的两端设有通孔，所述收容槽的底壁对应两个通孔设有匹配孔，两个螺栓分别穿过一通孔和一匹配孔螺纹连接，将所述支撑板可拆卸地固定于所述收容槽内。
可选地，所述收容槽的底壁设有两个锁紧件，两个所述锁紧件位于支撑板的两端，每一锁紧件和所述收容槽的底壁配合形成卡槽，所述支撑板的两端分别插设于所述卡槽内。
可选地，每一锁紧件包括连接板和与所述连接板呈夹角设置的挡板，所述连接板容纳于所述收容槽内，所述挡板远离所述连接板的一端与所述下台阶面抵接，所述连接板、所述挡板、及所述收容槽的底壁配合形成所述卡槽。
可选地，所述背光模组还包括定位件，所述定位块容纳于所述安装空间并夹持于所述侧板和所述导光板之间。
可选地，相邻的两个所述侧板之间通过焊接连接；且/或，相邻的两个所述弯折部之间通过焊接连接。
可选地，所述底板、所述侧板、及所述弯折部为一体折弯成型。
可选地，相邻的两个所述侧板及两个所述弯折部配合形成倒角。
本申请还提供一种显示设备，包括上述的背光模组及显示面板，所述背光模组包括：
背板，包括底板、设于所述底板四周的侧板、以及由所述侧板弯折形成的弯折部，所述底板、所述侧板、以及所述弯折部围合形成安装空间，所述弯折部背向所述底板的一侧设有限位台阶，所述弯折部包括连接于所述限位台阶的上台阶面和下台阶面；
反射片，容纳于所述安装空间内并设于所述底板上；
导光板，容纳于所述安装空间并设于所述反射片背向所述底板的一侧；
膜片，容纳于所述安装空间并设于所述导光板背向所述反射片的一侧；以及
所述显示面板，盖合于所述安装空间的开口，并连接于所述下台阶面上。
可选地，所述上台阶面邻近所述下台阶面凹设有收容槽，所述收容槽内设有挂耳，所述挂耳邻近所述限位台阶设置，所述膜片邻近所述下台阶面的一侧设有定位部，所述定位部开设定位孔，所述定位孔套设于所述挂耳。
可选地，所述定位部包括与所述膜片呈垂直设置的定位板、和与所述定位板呈夹角设置的定位台阶，所述定位孔设于所述定位台阶，所述膜片和所述定位部为一体成型结构。
可选地，所述背光模组还包括可拆卸地设于所述收容槽内的支撑板，所述支撑板邻近所述限位台阶凸设有所述挂耳，所述定位孔套设于所述挂耳时，所述定位部与所述支撑板抵接。
可选地，所述支撑板的两端设有通孔，所述收容槽的底壁对应两个通孔设有匹配孔，两个螺栓分别穿过一通孔和一匹配孔螺纹连接，将所述支撑板可拆卸地固定于所述收容槽内。
可选地，所述收容槽的底壁设有两个锁紧件，两个所述锁紧件位于支撑板的两端，每一锁紧件和所述收容槽的底壁配合形成卡槽，所述支撑板的两端分别插设于所述卡槽内。
可选地，每一锁紧件包括连接板和与所述连接板呈夹角设置的挡板，所述连接板容纳于所述收容槽内，所述挡板远离所述连接板的一端与所述下台阶面抵接，所述连接板、所述挡板、以及所述收容槽的底壁配合形成所述卡槽。
可选地，所述显示面板和所述下台阶面之间设有胶层，所述显示面板通过胶层与所述下台阶面连接。
可选地，所述弯折部为所述侧板远离所述底板的一端朝向所述安装空间弯折的折板，所述弯折部与所述显示面板平行设置。
本申请技术方案中，背板的底板、侧板、及弯折部围合形成安装空间，反射片容纳于安装空间内并设于底板上，导光板容纳于安装空间并设于反射片背向底板的一侧，膜片容纳于安装空间并设于导光板背向反射片的一侧。当光源进入导光板时，导光板将光线向四周散射，其中，反射片有效将光线反射回导光板，提高光线利用率，位于导光板上的膜片有效起到均匀光线，并且汇聚大角度光供正面观察的作用。
本申请通过将背板的侧板弯折形成弯折部，在弯折部上设置限位台阶，以使弯折部形成有连接于限位台阶的上台阶面和下台阶面，可通过在上台阶面上设置装饰件，从而实现多变外观效果；通过利用背板的底板、侧板、及弯折部，完成背光模组各部件的组装，使得背光模组的结构简单；进一步地，通过将显示面板盖合于安装空间的开口，并连接于下台阶面上，有效实现背光模组的无边框，降低背光模组的厚度，且结构件少，模组组装简易，成本低。
 附图说明
为了更清楚地说明本申请实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，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示出的结构获得其他的附图。
图1为本申请实施例一背光模组的局部剖视图；
图2为本申请实施例一背光模组的局部结构示意图。
附图标号说明：
标号 名称 标号 名称
10 背板 40 膜片
11 底板 41 定位部
12 侧板 411 定位板
13 弯折部 412 定位台阶
131 上台阶面 4121 定位孔
1311 收容槽 50 显示面板
1312 匹配孔 61 锁紧件
132 下台阶面 611 对应孔
133 限位台阶 62 支撑板
14 安装空间 621 挂耳
20 反射片 622 通孔
30 导光板 70 螺栓
本申请目的的实现、功能特点及优点将结合实施例，参照附图做进一步说明。
 本发明的实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请的一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
需要说明，本申请实施例中所有方向性指示（诸如上、下、左、右、前、后……）仅设置为解释在某一特定姿态（如附图所示）下各部件之间的相对位置关系、运动情况等，如果该特定姿态发生改变时，则该方向性指示也相应地随之改变。
在本申请中，除非另有明确的规定和限定，术语“连接”、“固定”等应做广义理解，例如，“固定”可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系，除非另有明确的限定。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请中的具体含义。
另外，在本申请中如涉及“第一”、“第二”等的描述仅设置为描述目的，而不能理解为指示或暗示其相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。另外，各个实施例之间的技术方案可以相互结合，但是必须是以本领域普通技术人员能够实现为基础，当技术方案的结合出现相互矛盾或无法实现时应当认为这种技术方案的结合不存在，也不在本申请要求的保护范围之内。
本申请提出一种背光模组及显示设备。
请参阅图1至图2，本申请一实施例中，显示设备包括背光模组和显示面板，该背光模组包括：
背板10，包括底板11、设于底板11四周的侧板12、及由侧板12弯折形成的弯折部13，底板11、侧板12、及弯折部13围合形成安装空间14，弯折部13背向底板11的一侧设有限位台阶133，弯折部13包括连接于限位台阶133的上台阶面131和下台阶面132；
反射片20，容纳于安装空间14内并设于底板11上；
导光板30，容纳于安装空间14并设于反射片背向底板11的一侧；
膜片40，容纳于安装空间14并设于导光板背向反射片的一侧；及
所述显示面板50，盖合于安装空间14的开口，并连接于下台阶面132上。
本实施例中，弯折部13为侧板12远离底板11的一端朝向安装空间14弯折的折板，折板与显示面板50平行设置，当然，折板也可略倾斜于显示面板50。
本实施例中，底板11、侧板12、及弯折部13为一体折弯成型，而在折弯过程中包含对背板10进行冲压等折弯过程，故成型过程中的加工作用力使得背板10的结构强度增强，从而导致背板10的厚度减小，使得显示设备实现极致超薄。
本实施例中，相邻的两个侧板12之间通过焊接连接；相邻的两个弯折部13之间通过焊接连接。
可以理解的，为避免出现缝隙，通过焊接方式想出相邻的两个侧板12及相邻的两个弯折部13之间的间隙，进而提高背板10的整体性、封闭性及结构强度，粉尘等细小杂质不会进入液晶显示装置内部，进而不会。
在一实施例中，相邻的两个侧板12及两个弯折部13配合形成倒角，使得两个弯折部13的焊接处呈现为倾斜45°的一字型，避免针对背板10边角进行二次倒角处理。
本实施例中，底板11、设于底板11四周的侧板12、及由侧板12远离底板11的一端弯折的折板围合形成具有开口的安装空间，反射片20、导光板30、膜片40、定位件、及其他电子元器件均通过开口放入安装空间内，其中，反射片20设于底板11上，导光板30设于反射片20背向底板11的一侧，膜片40设于导光板30背向反射片20的一侧，当光源进入导光板30时，导光板30将光线向四周散射，其中，反射片20有效将光线反射回导光板30，提高光线利用率，位于导光板30上的膜片40有效起到均匀光线，并且汇聚大角度光供正面观察的作用。
本申请通过将背板10的侧板12弯折形成弯折部13，在弯折部13上设置限位台阶133，以使弯折部13形成有连接于限位台阶133的上台阶面131和下台阶面132，可通过在上台阶面131上设置装饰件，从而实现多变外观效果；通过利用背板10的底板11、侧板12、及弯折部13，完成背光模组各部件的组装，使得背光模组的结构简单；进一步地，通过将显示面板50盖合与安装空间14的开口，并连接于下台阶面132上，有效实现背光模组的无边框，降低背光模组的厚度，且结构件少，模组组装简易，成本低。
在一实施例中，上台阶面131邻近下台阶面132凹设有收容槽1311，收容槽1311内设有挂耳621，挂耳621邻近限位台阶133设置，膜片40邻近下台阶面132的一侧设有定位部41，定位部41开设定位孔4121，定位孔4121套设于挂耳621。
挂耳621位于收容槽1311内，一方面有效隐藏挂耳621，另一方面有效减少空间占用，本实施例中，定位部41包括与膜片40呈垂直设置的定位板411、和与定位板411呈夹角设置的定位台阶412，定位孔4121设于定位台阶412，膜片40和定位部41为一体成型结构，有利于生产；
在膜片40通过定位孔4121套设于挂耳621时，定位部41的一部分容纳于收容槽1311内，定位部41的另一部分位于下台阶面132和显示面板50之间，一方面有效将述膜片40挂设的方式固定于背板10上，另一方面有效实现隐藏。
本实施例中，显示面板50和下台阶面132之间设有胶层，显示面板50通过胶层与下台阶面132连接。
胶层可为EVA胶层、胶水、或者双面胶，胶层的厚度尺寸大于定位部41的定位台阶412厚度尺寸，有效避免定位部41和显示面板50相互影响，实现显示面板50固定安装，以便显示面板50日后便于拆装维修。
在一实施例中，背光模组还包括可拆卸地设于收容槽1311内的支撑板62，支撑板62邻近限位台阶133凸设有挂耳621，定位孔4121套设于挂耳621时，定位部41与支撑板62抵接。
本实施例中，支撑板62的两端设有通孔622，收容槽1311的底壁对应两个通孔622设有匹配孔1312，两个螺栓70分别穿过一通孔622和一匹配孔1312螺纹连接，将支撑板62可拆卸地固定于收容槽1311内，当挂耳621损坏时，用户卸下支撑板62进行更换，有利于维修。
在一实施例中，收容槽1311的底壁设有两个锁紧件61，两个锁紧件61位于支撑板62的两端，每一锁紧件61和收容槽1311的底壁配合形成卡槽，支撑板62的两端分别插设于卡槽内。
每一锁紧件61设有对应一通孔622的对应孔611，两个螺栓70穿过一对应孔611及一通孔622和一匹配孔1312螺纹连接，使得锁紧件61固定于收容槽1311内，针对支撑板62进行二次固定；当支撑板62的通孔622与螺栓70之间产生松动，支撑板62的两端限位于锁紧件61和收容槽1311的底壁配合形成的卡槽内，有效避免支撑板62与螺栓70之间产生松动，也便于拆卸，有利于维修。
具体地，每一锁紧件61包括连接板和与连接板呈夹角设置的挡板，连接板容纳于收容槽1311内，挡板远离连接板的一端与下台阶面132抵接，连接板、挡板、及收容槽1311的底壁配合形成卡槽。
连接板和挡板可在锁紧件61一体冲压成型过程中与锁紧件61一体成型，有利于生产；本实施例中，连接板远离挡板的一端抵接于限位台阶133与下台阶面132的连接处，支撑板62的端部限制于挡板与收容槽1311的底壁之间，通过连接板支撑着支撑板62的重量，实现二次固定；
当支撑板62与螺栓70之间松动，螺栓70与锁紧件61稍微松动时，使得收容槽1311的底壁与锁紧件61之间产生缝隙，而连接板远离挡板的一端依旧位于限位台阶133与下台阶面132的连接处，有效避免支撑板62通过收容槽1311的底壁与锁紧件61之间产生缝隙偏移。
可选地，本实施例背光模组还包括定位件，定位块容纳于安装空间14并夹持于侧板12和导光板30之间。
可以理解的，导光板30的宽度或者长度尺寸与安装空间14的开口两侧壁之间的尺寸匹配设置，而定位块夹持于侧板12和导光板30之间，有效将导光板30固定于安装空间14内，同时，使得导光板30与安装空间14的开口对应设置。
本实施例中，定位件包括三个，三个定位件的一端分别抵接于安装空间14的内左、右侧壁和顶壁，三个定位件的另一端分别抵接于导光板30的左、右侧壁和顶壁，有效实现固定，拆装简单，并且成本低。
本申请还提供一种显示设备，包括上述的背光模组，背光模组的结构可参照上述实施例，在此不再赘述。理所应当地，由于本实施例的显示设备采用了上述背光模组的技术方案，因此该显示设备具有上述背光模组所有的功能。
以上仅为本申请的优选实施例，并非因此限制本申请的专利范围，凡是在本申请的申请构思下，利用本申请说明书及附图内容所作的等效结构变换，或直接/间接运用在其他相关的技术领域均包括在本申请的专利保护范围内。

Claims (20)

  1. 一种背光模组，其中，包括：
    背板，包括底板、设于所述底板四周的侧板、及由所述侧板弯折形成的弯折部，所述底板、所述侧板、及所述弯折部围合形成安装空间，所述弯折部背向所述底板的一侧设有限位台阶，所述弯折部包括连接于所述限位台阶的上台阶面和下台阶面；
    反射片，容纳于所述安装空间内并设于所述底板上；
    导光板，容纳于所述安装空间并设于所述反射片背向所述底板的一侧；
    膜片，容纳于所述安装空间并设于所述导光板背向所述反射片的一侧。
  2. 如权利要求1所述的背光模组，其中，所述上台阶面邻近所述下台阶面凹设有收容槽，所述收容槽内设有挂耳，所述挂耳邻近所述限位台阶设置，所述膜片邻近所述下台阶面的一侧设有定位部，所述定位部开设定位孔，所述定位孔套设于所述挂耳。
  3. 如权利要求2所述的背光模组，其中，所述定位部包括与所述膜片呈垂直设置的定位板、和与所述定位板呈夹角设置的定位台阶，所述定位孔设于所述定位台阶，所述膜片和所述定位部为一体成型结构。
  4. 如权利要求2所述的背光模组，其中，所述背光模组还包括可拆卸地设于所述收容槽内的支撑板，所述支撑板邻近所述限位台阶凸设有所述挂耳，所述定位孔套设于所述挂耳时，所述定位部与所述支撑板抵接。
  5. [根据细则91更正 08.01.2020]　
    如权利要求4所述的背光模组，其中，所述支撑板的两端设有通孔，所述收容槽的底壁对应两个通孔设有匹配孔，两个螺栓分别穿过一通孔和一匹配孔螺纹连接，将所述支撑板可拆卸地固定于所述收容槽内。
  6. [根据细则91更正 08.01.2020]　
    如权利要求4所述的背光模组，其中，所述收容槽的底壁设有两个锁紧件，两个所述锁紧件位于支撑板的两端，每一锁紧件和所述收容槽的底壁配合形成卡槽，所述支撑板的两端分别插设于所述卡槽内。
  7. [根据细则91更正 08.01.2020]　
    如权利要求6所述的背光模组，其中，每一锁紧件包括连接板和与所述连接板呈夹角设置的挡板，所述连接板容纳于所述收容槽内，所述挡板远离所述连接板的一端与所述下台阶面抵接，所述连接板、所述挡板、及所述收容槽的底壁配合形成所述卡槽。
  8. 如权利要求1所述的背光模组，其中，所述背光模组还包括定位件，所述定位块容纳于所述安装空间并夹持于所述侧板和所述导光板之间。
  9. 如权利要求1所述的背光模组，其中，相邻的两个所述侧板之间通过焊接连接；
    且/或，相邻的两个所述弯折部之间通过焊接连接。
  10. 如权利要求1所述的背光模组，其中，所述底板、所述侧板、及所述弯折部为一体折弯成型。
  11. 如权利要求1所述的背光模组，其中，相邻的两个所述侧板及两个所述弯折部配合形成倒角。
  12. 一种显示设备，其中，包括背光模组及显示面板，所述背光模组包括：
    背板，包括底板、设于所述底板四周的侧板、以及由所述侧板弯折形成的弯折部，所述底板、所述侧板、以及所述弯折部围合形成安装空间，所述弯折部背向所述底板的一侧设有限位台阶，所述弯折部包括连接于所述限位台阶的上台阶面和下台阶面；
    反射片，容纳于所述安装空间内并设于所述底板上；
    导光板，容纳于所述安装空间并设于所述反射片背向所述底板的一侧；
    膜片，容纳于所述安装空间并设于所述导光板背向所述反射片的一侧；以及
    所述显示面板，盖合于所述安装空间的开口，并连接于所述下台阶面上。
  13. 如权利要求12所述的显示设备，其中，所述上台阶面邻近所述下台阶面凹设有收容槽，所述收容槽内设有挂耳，所述挂耳邻近所述限位台阶设置，所述膜片邻近所述下台阶面的一侧设有定位部，所述定位部开设定位孔，所述定位孔套设于所述挂耳。
  14. 如权利要求13所述的显示设备，其中，所述定位部包括与所述膜片呈垂直设置的定位板、和与所述定位板呈夹角设置的定位台阶，所述定位孔设于所述定位台阶，所述膜片和所述定位部为一体成型结构。
  15. 如权利要求14所述的显示设备，其中，所述背光模组还包括可拆卸地设于所述收容槽内的支撑板，所述支撑板邻近所述限位台阶凸设有所述挂耳，所述定位孔套设于所述挂耳时，所述定位部与所述支撑板抵接。
  16. 如权利要求15所述的显示设备，其中，所述支撑板的两端设有通孔，所述收容槽的底壁对应两个通孔设有匹配孔，两个螺栓分别穿过一通孔和一匹配孔螺纹连接，将所述支撑板可拆卸地固定于所述收容槽内。
  17. 如权利要求16所述的显示设备，其中，所述收容槽的底壁设有两个锁紧件，两个所述锁紧件位于支撑板的两端，每一锁紧件和所述收容槽的底壁配合形成卡槽，所述支撑板的两端分别插设于所述卡槽内。
  18. 如权利要求17所述的显示设备，其中，每一锁紧件包括连接板和与所述连接板呈夹角设置的挡板，所述连接板容纳于所述收容槽内，所述挡板远离所述连接板的一端与所述下台阶面抵接，所述连接板、所述挡板、以及所述收容槽的底壁配合形成所述卡槽。
  19. 如权利要求12所述的显示设备，其中，所述显示面板和所述下台阶面之间设有胶层，所述显示面板通过胶层与所述下台阶面连接。
  20. 如权利要求12所述的显示设备，其中，所述弯折部为所述侧板远离所述底板的一端朝向所述安装空间弯折的折板，所述弯折部与所述显示面板平行设置。
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