WO2023000283A1 - 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
WO2023000283A1
WO2023000283A1 PCT/CN2021/108027 CN2021108027W WO2023000283A1 WO 2023000283 A1 WO2023000283 A1 WO 2023000283A1 CN 2021108027 W CN2021108027 W CN 2021108027W WO 2023000283 A1 WO2023000283 A1 WO 2023000283A1
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WO
WIPO (PCT)
Prior art keywords
backlight module
optical film
light
positioning
guide plate
Prior art date
Application number
PCT/CN2021/108027
Other languages
English (en)
French (fr)
Inventor
张忠成
侯珮棻
蔡宇恒
Original Assignee
瑞仪(广州)光电子器件有限公司
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Application filed by 瑞仪(广州)光电子器件有限公司 filed Critical 瑞仪(广州)光电子器件有限公司
Priority to PCT/CN2021/108027 priority Critical patent/WO2023000283A1/zh
Publication of WO2023000283A1 publication Critical patent/WO2023000283A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2105/00—Planar light sources
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • 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

Definitions

  • the present application relates to a display technology, in particular to a backlight module and a display device.
  • the design trend of the display device is developing from the previous bulky and heavy appearance to the direction of thinning and light weight, and the frame width of the display device is gradually tending to the design of the narrow frame, so that the overall volume of the display device is reduced and the same size
  • the area of the display picture that can be seen under the display device is larger, and the visual effect is better.
  • the conventional narrow bezel display device Due to the trend of narrowing the bezel of the display device, the conventional narrow bezel display device has to overcome the problem of fixing the optical film in the backlight module or the panel in the display device.
  • the backplane or plastic frame of the conventional backlight module is also provided with at least one protrusion for hanging on the hanging ear on the optical film.
  • the backplane or plastic frame of the conventional backlight module must have a certain thickness to set the protrusions for the positioning of the lugs of the optical film.
  • the limit of the narrow frame of the conventional backlight module lies in the backplane or glue The boss of the box.
  • the lugs of the optical film are easily broken due to stress, and the yield rate of the overall backlight module is not good.
  • the backplane in the conventional backlight module is usually provided with a U-shaped bending part on at least one side, wherein the inner space of the U-shaped bending part accommodates the light bar, and the U-shaped bending part
  • the bottom surface of the folded part is used to carry the light guide plate, and the top surface on the opposite side is used to carry the panel, so that the thickness of the conventional backlight module cannot be reduced.
  • the light leakage is covered by a reflector on the top of the light bar. Due to the small assembly space of the U-shaped bending part, it is difficult to assemble and attach the reflector. Not only is the positioning difficult, but the assembly time is long, and subsequent heavy maintenance is also difficult. Finish.
  • the conventional narrow bezel display devices have the following shortcomings: 1. It needs to use more components to assemble to achieve the fixing effect of the mechanism design. For example, the reflector above the light bar needs to be attached to The inner side of the U-shaped bending part of the backplane, and another double-sided tape is attached to the light guide plate; 2. The backplane is usually stamped with metal parts, and the U-shaped bending part of the manufacturing process is prone to burrs and foreign matter residues. There is still a cleaning process before, resulting in long assembly hours; 3. The material cost of the backplane is high, and the assembly of the internal components of the U-shaped bending part is not easy to be reworked, resulting in a high cost of the overall backlight module; 4.
  • the above-mentioned reflector above the light bar needs to be attached to the inside of the U-shaped bending part of the back panel with a piece of double-sided tape, and another piece of double-sided tape is attached to the light guide plate.
  • the assembly operation is complicated and the assembly time is long.
  • the purpose of this application is to provide a new design structure of the backlight module, which can achieve the effects of thinning the backlight module and narrowing the frame by using the support structure, and can also achieve the effects of fixing multiple parts at the same time, simplifying the assembly process and shortening the working hours.
  • Another purpose of the present application is to provide a new design structure of the backlight module, improve the matching yield of parts and materials, simplify the assembly or rework process, and reduce the overall cost of parts or the cost of material rework caused by poor assembly.
  • the present application provides a backlight module, which includes: a base plate and at least one side wall, forming a space between the side wall and the base plate; a light guide plate, which has a light incident surface and is connected to the light incident surface The light emitting surface of the light guide plate is arranged on the base plate; the light source assembly includes a substrate and a plurality of light sources, the light source is arranged on the substrate, and the light source is adjacent to the light incident surface of the light guide plate; a supporting structure , which is arranged on the substrate, and the support structure has at least one positioning portion, the positioning portion extends to the top surface of at least one light source in the light source module; and at least one optical film, which is provided with a limiting hole corresponding to the positioning department.
  • the thickness of the positioning portion is equal to or greater than the depth of the limiting hole. More preferably, the positioning portion straddles above the light source, and both ends of the positioning portion each have an auxiliary supporting portion extending downward.
  • the support structure includes a main body part and a plurality of extension parts, and these extension parts respectively extend from the main body part to between any two adjacent light sources in the light source assembly. End faces of the extensions of the support structure are in contact with the light incident surface of the light guide plate.
  • the main body of the support structure and the substrate are fixed by a first adhesive member, and the first adhesive member has a plurality of extension sections and a plurality of bending sections, wherein the extension sections correspond to the These extensions of the support structure, the extensions are located between the extensions and the substrate, the bending sections are respectively connected to the extensions one-to-one, and the bending sections extend to the light guide plate and these between the ends of the extension.
  • the optical film closest to the light source is a reflective sheet
  • the reflective sheet has a joint portion extending to the rear of these light sources.
  • the support structure includes a body portion, the joint portion of the reflective sheet is fixed to the top surface of the body portion of the support structure with a second adhesive member, and the second adhesive member forms a groove relative to the positioning portion of the support structure .
  • other optical films located above the reflective sheet also have limiting holes corresponding to the positioning portion.
  • the present application further provides a backlight module, including: a bottom plate and at least one side wall, a space is formed between the side wall and the bottom plate; a light guide plate has a light incident surface and a light incident surface connected The light output surface, the light guide plate is arranged on the base plate; the light source assembly includes a substrate and a plurality of light sources, the light source is arranged on the substrate, and the light source is adjacent to the light incident surface of the light guide plate; a supporting structure, It is arranged on the substrate, and the support structure has at least one step part, the step part is located between the light sources and the side wall; and at least one optical film, which is provided with a positioning part, and the positioning part corresponds to the step department.
  • the stepped portion includes a plurality of bonding portions, the number of the optical film is multiple, and the positioning portions of the optical film respectively correspond to the bonding portions. More preferably, the stepped portion includes a first bonding portion and a second bonding portion, the second bonding portion is higher than the first bonding portion, and the optical film includes a first optical film, a second An optical film and a third optical film, the first optical film has a first positioning part, and the first positioning part corresponds to the first bonding part and the second bonding part of the stepped part.
  • the first optical film Positioning the second optical film has a second positioning portion, the second positioning portion is smaller than the first positioning portion, and the second positioning portion corresponds to the second bonding portion of the stepped portion to position the second optical film , the second optical film is fixedly combined with the first bonding part, and the third optical film is fixedly combined with the second bonding part.
  • Another object of the present application is to provide a display device, which utilizes a new design structure of the backlight module, achieves the effect of thinning the backlight module and narrowing the frame through the support structure, and can also ensure the fixing effect of multiple parts, reducing the
  • the traditional multi-part design leads to the problem of poor matching of parts and materials, and the assembly process is simple, which can reduce the cost of material rework caused by poor assembly.
  • the present application provides a display device, the structure of which includes: the aforementioned backlight module, and a display panel, which is adjacent to the light-emitting surface of the light guide plate in the backlight module.
  • the positioning portion in the backlight module is at the same height as the side wall to support the display panel. More preferably, the positioning portion or the step portion in the backlight module is at the same height as the side wall to support the display panel.
  • the new design architecture of the backlight module uses the support structure and its positioning part to extend to the top surface of at least one light source in the light source assembly, or the part between these light sources and the side wall
  • the stepped part can simultaneously achieve the effect of thinning the backlight module and narrowing the frame, and can also ensure the fixing effect of multiple parts, reduce the problem of poor matching of parts and materials derived from the traditional multi-part design, improve the yield of parts and materials, and shorten assembly or rework Working hours, increase product yield, reduce costs.
  • FIG. 1 is a schematic diagram of partial explosion of the backlight module of the embodiment of the present case.
  • Fig. 2 is a schematic cross-sectional view of A-A partial assembly of the embodiment of Fig. 1 after assembly.
  • Fig. 3 is a schematic cross-sectional view of the combined BB part of the embodiment of Fig. 1 .
  • Fig. 4 is an exploded schematic diagram of the light source assembly and the supporting structure of this case.
  • FIG. 5 is a schematic diagram of a partial combination of the light source assembly and the supporting structure in this case.
  • FIG. 6 is a schematic diagram of the combination of the optical film and the supporting structure in this case.
  • Fig. 7 is a schematic diagram of another implementation of the supporting structure of the present case.
  • FIG. 8 is a partial schematic diagram of the display device in the embodiment of the present application.
  • FIG. 1 , FIG. 2 and FIG. 3 are partial exploded schematic diagrams and partial combined sectional views of a preferred embodiment of the backlight module of the present application.
  • the backlight module 100, the backlight module 100 includes: a bottom plate 110 and at least one side wall 120, a space 130 is formed between the side wall 120 and the bottom plate 110, and the space 130 is used to accommodate the components that make up the back light module 100 .
  • the light guide plate 200 has a light incident surface 210 and a light exit surface 220 connected to the light incident surface 210 , and the light guide plate 200 is disposed on the base plate 110 .
  • the light source assembly 300 includes a substrate 310 and a plurality of light sources 320.
  • the light sources 320 may be light-emitting diodes (Light-Emitting Diodes, LEDs).
  • the incident surface 210 of 200 As shown in FIG. 2 , the light source 320 is located between the light guide plate 200 and the side wall 120 .
  • the light source assembly 300 is a flexible circuit board, the edge of the flexible circuit board extends between the light guide plate 200 and the base plate 110, and the flexible circuit board is made of an adhesive (not shown in the figure). attached to the bottom plate 110 .
  • a reflector sheet (Reflector sheet) 230 is further provided between the light guide plate 200 and the bottom plate 110, for reflecting the light in the light guide plate 200 toward the light-emitting surface 220, and the above-mentioned adhesive for pasting the flexible circuit board
  • the adhesive member can also extend to the bottom of the reflective sheet 230 , and the adhesive member attaches the reflective sheet 230 to the bottom plate 110 at the same time. In this way, the number of adhesive parts, material cost and assembly man-hours can be saved.
  • the support structure 400 includes a body portion 410 and at least one positioning portion 420, wherein the body portion 410 is disposed on the substrate 310 and is located behind the light source 320 relative to the light guide plate 200, wherein the body portion 410 is thicker than Preferably at least the same height as the light source 320, the positioning portion 420 extends from the body portion 410 to the top surface of the light source 320 (as shown in FIG. 2 ), and the positioning portion 420 is used to position at least one optical film 500 pieces.
  • the positioning part 420 spans above the light source 320, and the two ends of the positioning part 420 each have an auxiliary support part 421 extending downward, and the auxiliary support part 421 is located on two adjacent Between the light sources 320 and against the substrate 310 (as shown in FIG. 3 ), the support strength of the positioning portion 420 is increased, so that the components of other backlight modules or display panels can be superimposed to disperse the aforementioned components. Or the pressure exerted by the display panel on the light source 320 enables the backlight module 100 to support the display panel more stably. More preferably, the auxiliary supporting portion 421 is fixed to the substrate 310 by an adhesive.
  • the positioning of the optical film 500 is realized by the positioning portion 410 of the support structure 400 located above the light source 320, and the backlight module 100 can be narrowed without occupying the thickness of the backplane or the plastic frame. Fixed effects with multiple parts.
  • the optical film 500 includes a limiting hole 510, for example, the limiting hole 510 is a perforation, the positioning part 420 of the support structure 400 is a protrusion, and the thickness of the positioning part 420 is preferably Equal to or greater than the depth of the limiting hole 510 of the optical film 500 to be used, so that it can be ensured that the optical film 500 is not easy to come out when it is hung on the positioning part 420, and then the positioning configuration of the optical film 500 is realized, not only achieving Multiple parts are fixed, which simplifies the assembly process and shortens the working hours. It can also improve the yield of parts and materials, and reduce the overall cost of parts or the cost of material rework caused by poor assembly.
  • the support structure 400 may further include a plurality of extension parts 430, and these extension parts 430 respectively extend from the main body part 410 to between any two adjacent light sources 320 in the light source assembly 300, and these extension parts
  • the end surface 431 of the portion 430 is in contact with the light incident surface 210 of the light guide plate 200 .
  • FIG. 4 and FIG. 5 are schematic diagrams of the explosion of the light source assembly 300 and the supporting structure 400 and a schematic diagram of the partial combination relationship in this case.
  • the main body portion 410 of the support structure 400 and the substrate 310 are fixed by a first adhesive member 330 , and the first adhesive member 330 has a plurality of extending sections 331 and a plurality of bent sections 332 .
  • the extension section 331 corresponds to the extension parts 430 of the supporting structure 400
  • the extension section 331 is located between the extension part 430 and the base plate 310
  • the bending section 332 is preferably respectively connected to the extension part 430.
  • the segments 331 are connected one to one, and the bent segments 332 extend between the light guide plate 200 and the end surfaces 431 of the extensions 430 (as shown in FIG. 4 ).
  • the first adhesive member 330 can attach and fix the support structure 400 and the light source assembly 300 at the same time, and position the support structure 400 and the side of the light guide plate 200.
  • the support structure 400 of the present application can not only realize the optical film
  • the positioning configuration of 500 can also fix the light guide plate 200 at the same time, so as to achieve the fixing effect of multiple parts matching with each other, which has the effect of reducing costs and shortening working hours.
  • FIG. 6 is a schematic diagram of the combined relationship between the optical film 500 and the support structure 400 of the present application.
  • the optical film 500 closest to the light source 320 is a reflective sheet 520, and the reflective sheet 520 is arranged above the light source 320 to shield the light from a larger angle emitted by these light sources 320 to ensure the The optical quality of the light guide plate 200.
  • the reflection sheet 520 has a joint portion 521 , and the joint portion 521 extends above the support structure 400 behind the light sources 320 .
  • the bonding portion 521 of the reflective sheet 520 is fixed to the top surface of the main body portion 410 of the support structure 400 with a second adhesive member 340 , and the second adhesive member 340 is formed relative to the positioning portion 420 of the support structure 400 groove 341 .
  • the reflective sheet 520 and other optical films 500 above it also have a limiting hole 510 corresponding to the positioning portion 420 .
  • the second adhesive member 340 is fixed to the optical film 500 through the upper part of the support structure 400, and the groove 341 of the second adhesive member 340 corresponds to the positioning part 420, so as to Ensure that when the reflective sheet 520 is positioned on the positioning portion 420 through the limiting hole 510, the reflective sheet 520 can be flatly attached to the support structure 400, and the second adhesive member 340 is along the top of the light source 320 Extending toward the light guide plate 200 and sticking to the light guide plate 200 has the effects of increasing the fixation of the optical film 500 , simplifying the assembly process and shortening the man-hour.
  • FIG. 7 is a schematic diagram of another implementation of the supporting structure 400 of the present invention.
  • the body part 410 of the support structure 400 may also have at least one step part 440, which is also used to realize the positioning of the optical film 500.
  • the step part 440 is preferably located between the light sources 320 and the side wall 120. between.
  • the stepped portion 440 includes a plurality of bonding portions 450 , and each bonding portion 450 corresponds to a different optical film.
  • the step part 440 is used to correspond to the positioning of three optical films, wherein the optical film closest to the light guide plate is the first optical film 530, and the stacked upwards are respectively the second optical films. sheet 540 and the third optical film 550 .
  • the stepped portion 440 includes a first bonding portion 451 on the top surface of the first stepped portion 441, and a second bonding portion 452 on the top surface of the second stepped portion 442, and the second bonding portion 452 is higher than the first bonding portion 452. Laminating part 451 .
  • the first optical film 530 has a first positioning portion 531, and the first positioning portion 531 positions the first optical film 530 corresponding to the stepped portion 440, that is, the first positioning portion 531 of the first optical film 530 Corresponding to the stepped portion 440 , the first bonding portion 451 and the second bonding portion 452 are exposed, and the first optical film 530 is fixed on the surface of the main body portion 420 of the supporting structure 400 . More preferably, the surface of the first optical film 530 is flush with the surface of the first bonding portion 451 .
  • the second optical film 540 has a second positioning portion 541, the second positioning portion 541 is smaller than the first positioning portion 531, and the second positioning portion 541 corresponds to the first step portion 441.
  • the second optical film 540 Positioning, the second optical film 540 is fixed on the surface of the first bonding portion 451 of the first stepped portion 441 . More preferably, the surface of the second optical film 540 is flush with the surface of the second bonding portion 452 .
  • the third optical film 550 is the uppermost film.
  • the limiting hole 510 can be selected not to be provided, and the third optical film 550 can be directly connected to the second bonding portion 452 of the second stepped portion 442 Fixed combination, this will make the optical taste of the display better.
  • the optical fiber can be positioned and fixed through the bonding parts (not shown) provided on the surface of the main body part 420 of the support structure 400, the first bonding part 451 and the second bonding part 452. All diaphragms of diaphragm 500.
  • the total thickness of the first optical film 530, its lower bonding part and its upper bonding part is the same as the thickness of the first stepped part 441, which is conducive to the flatness of the second optical film 540.
  • the total thickness of the second optical film 540 and the bonding member above it is the same as the thickness of the second stepped portion 442, which not only helps to attach the flatness of the third optical film 550, but also ensures the flatness of the second optical film 550.
  • the third optical film 550 does not need to be provided with holes for positioning (ie, limiting holes 510 ), which is beneficial to improve the optical quality of the display.
  • the supporting structure 400 can be selected to use the positioning part 410 or the stepped part 440 to position the optical film according to requirements.
  • the backlight module 100 of this case uses a new design structure, and uses the support structure 400 to achieve the effect of thinning the backlight module and narrowing the frame.
  • the design of the structure improves the yield of parts and materials, simplifies the assembly or rework process, and reduces the overall cost of parts or material rework due to poor assembly.
  • FIG. 8 is a partial schematic diagram of a display device of the present application.
  • the aforementioned backlight module 100 is applied to the display device 600 and includes a display panel 700 and the aforementioned backlight module 100. above the backlight module 100 .
  • the height of the positioning portion 420 of the backlight module 100 is preferably the same as the height of the side wall 120, or the height of the stepped portion 420 of the backlight module 100 is preferably the same as the height of the side wall 120 have the same height, and the display panel 700 above the backlight module 100 is supported by both the side wall 120 and the supporting structure 400 .
  • the display device of the present application cancels the conventional bending part, reduces the wall thickness of the bending part, and contributes to the thinning of the backlight module, and uses the support structure 400 to carry the display panel 700, which not only achieves a narrow frame It can also reduce the difficulty of assembly and achieve the effect of shortening the working hours; in addition, cancel the conventional post design on the back plate or plastic frame, and overlap the positioning part 410 for fixing the optical film on the top of the light source 320 , so that the display device of the present application can achieve the effect of narrowing the frame.

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Abstract

一种背光模组(100)及显示装置，背光模组(100)主要包含：支撑结构(400)，设置在基板(310)上，且具有至少一个定位部(420)，定位部(420)延伸至光源组件(300)中至少一个光源(320)的顶面上；及光学膜片(500)，设有限位孔(510)，限位孔(510)对应定位部(420)。利用支撑结构(400)同步达到背光模组(100)薄化与机构设计的固定效果，减少传统多部材设计所衍生出部材搭配不良的问题，增加产品生产良率，降低成本。

Description

背光模组及显示装置 技术领域
本申请涉及一种显示技术，特别是一种背光模组及显示装置。
背景技术
目前显示装置的设计趋势由以往的体积庞大、厚重的外型朝薄型化以及轻量化的方向发展，而且显示装置的边框宽度渐渐趋向窄边框的设计，使得显示装置整体的体积缩小且在相同尺寸的显示装置下所能看到的显示画面的面积更大，视觉效果更好。
由于显示装置边框窄化的趋势，习知窄边框显示装置必须克服背光模组中的光学膜片或显示装置中的面板的固定问题。习知背光模组的背板或胶框除了作为承载面板之用，其中还设有至少一个凸柱，以供光学膜片上的挂耳挂附。然而，习知背光模组的背板或胶框必须有一定的厚度设置该凸柱，以供光学膜片的该挂耳定位，换言之，习知背光模组的窄边框极限在于背板或胶框的凸柱。此外，该光学膜片的挂耳也容易受到应力而断裂，整体背光模组的良率也不佳。
面对显示装置薄型化的需求，习知背光模组中的背板通常至少一侧设有U型弯折部，其中，该U型弯折部的内部空间容置灯条，该U型弯折部的底面用以承载导光板，而相对一侧的顶面用以承载面板，以致于习知背光模组的厚度无法降低。再者，灯条上方以反射片遮蔽漏光，由于U型弯折部的组装空间较小，导致反射片的组装贴附难度较高，不仅定位不易，且组装工时长，尔后的重工维修也不易完成。
综上所述，习知窄边框显示装置有以下缺失：1.需要利用较多部材组装以达到机构设计的固定效果，例如前述位于灯条上方的反射片需以一张双面胶贴附于背板的U型弯折部内侧，以及另一张双面胶贴附于导光板；2.背板通常是以金属件冲压，其U型弯折部的制程，容易发生毛边异物残 留，组装前尚需一道清洁工序，导致组装工时较长；3.背板的材料成本较高，且U型弯折部内部元件的组装不易容易发生重工，导致整体背光模组的成本较高；4.前述位于灯条上方的反射片需以一张双面胶贴附于背板的U型弯折部内侧，以及另一张双面胶贴附于导光板，组装操作复杂，组装工时长。这些缺失使整体背光模组厚度与成本都居高不下。
发明内容
本申请的目的在于提供一种背光模组新型设计架构，利用支撑结构达到背光模组薄化与边框窄化的效果，还可同时达到多部材固定，简化组装工序与缩短工时的功效。
本申请的另一目的在于提供一种背光模组新型设计架构，提升部材搭配良率，组装或重工工序简易，可以降低整体部材成本或因组装不良造成材料重工成本。
为了达成上述目的，本申请提供一种背光模组，其包含：底板及至少一个侧壁，该侧壁围与该底板之间形成空间；导光板，其具有入光面及连接该入光面的出光面，该导光板设置在该底板上；光源组件，其包含基板及多个光源，所述光源设置在该基板上，且所述光源邻设于该导光板的入光面；支撑结构，其设置在该基板上，且该支撑结构具有至少一个定位部，该定位部延伸至该光源组件中至少一个光源的顶面上；及至少一个光学膜片，其设有限位孔对应所述定位部。
作为优选方式，该定位部的厚度等于或大于所述限位孔的深度。更佳的是，所述定位部横跨所述光源上方，且所述定位部的两端各具有向下延伸的辅助支撑部。
作为优选方式，该支撑结构包含本体部与多个延伸部，这些延伸部自该本体部分别延伸至该光源组件中任两个相邻的光源之间。该支撑结构的这些延伸部的端面与该导光板的入光面接触。
作为优选方式，该支撑结构的该本体部与该基板间以第一黏贴件固定，且该第一黏贴件具有多个延伸段及多个弯折段，其中，所述延伸段对应该支撑结构的这些延伸部，所述延伸段位于所述延伸部与该基板之间， 所述弯折段分别与所述延伸段一对一连接，所述弯折段延伸至该导光板与这些延伸部的端面之间。
作为优选方式，所述光学膜片的数量为多个，最靠近所述光源的光学膜片为反射片，该反射片具有结合部，该结合部延伸至这些光源后方。该支撑结构包含本体部，该反射片的结合部与该支撑结构的该本体部的顶面以第二黏贴件固定，该第二黏贴件相对于该支撑结构的该定位部形成凹槽。更佳的是，位于该反射片上方的其它光学膜片也具有对应该定位部的限位孔。
为了达成上述目的，本申请再提供一种背光模组，包含：底板及至少一个侧壁，该侧壁与该底板之间形成空间；导光板，其具有入光面及连接该入光面的出光面，该导光板设置在该底板上；光源组件，其包含基板及多个光源，所述光源设置在该基板上，且所述光源邻设于该导光板的入光面；支撑结构，其设置在该基板上，且该支撑结构具有至少一个阶梯部，该阶梯部位于这些光源与该侧壁之间；及至少一个光学膜片，其设有定位部，该定位部对应所述阶梯部。
作为优选方式，该阶梯部包含有多个贴合部，所述光学膜片的数量为多个，所述光学膜片的定位部分别对应所述贴合部。更佳的是，该阶梯部包含第一贴合部及第二贴合部，该第二贴合部高于该第一贴合部，所述光学膜片包含第一光学膜片、第二光学膜片及第三光学膜片，该第一光学膜片具有第一定位部，该第一定位部对应该阶梯部的第一贴合部及第二贴合部将该第一光学膜片定位，该第二光学膜片具有第二定位部，该第二定位部小于该第一定位部，且该第二定位部对应该阶梯部的第二贴合部将该第二光学膜片定位，该第二光学膜片与该第一贴合部固定结合，该第三光学膜片与该第二贴合部固定结合。
本申请的另一目的在于提供一种显示装置，利用一种背光模组新型设计架构，藉由支撑结构达到背光模组薄化与边框窄化的效果，还可确保多部材的固定效果，减少传统多部材设计所衍生出部材搭配不良的问题，且组装工序简易，可以降低组装不良造成材料重工成本。
为达成上述目的，本申请提供一种显示装置，其结构包含：前述的背 光模组，及显示面板，其邻设于所述背光模组中该导光板的出光面。
作为优选方式，所述背光模组中的定位部与该侧壁高度相同以支撑该显示面板。更佳的是，所述背光模组中的定位部或阶梯部与该侧壁高度相同以支撑该显示面板。
相较于先前技术，本申请具有下列特点，背光模组新型设计架构，利用支撑结构及其定位部延伸至该光源组件中至少一个光源的顶面，或位于这些光源与该侧壁之间的阶梯部，同步达到背光模组薄化与边框窄化的效果，还可确保多部材的固定效果，减少传统多部材设计所衍生出部材搭配不良的问题，提升部材搭配良率，缩短组装或重工工时，增加产品生产良率，降低成本。
附图说明
图1为本案实施例的背光模组的局部爆炸示意图。
图2为图1实施例的组合后的A—A局部组合剖面示意图。
图3为图1实施例的组合后的B—B局部组合剖面示意图。
图4为本案光源组件与支撑结构的爆炸示意图。
图5为本案光源组件与支撑结构的局部组合示意图。
图6为本案光学膜片与支撑结构的组合示意图。
图7为本案支撑结构的另一实施示意图。
图8为本案实施例中显示装置的局部示意图。
具体实施方式
现在配合附图将本申请实施例详细说明如下，其所附附图主要为简化的示意图，仅以示意方式说明本申请的基本结构，因此在这些附图中仅标示与本申请有关的元件，且所显示的元件并非以实施时的数目、形状、尺寸比例等加以绘制，其实际实施时的规格尺寸实为一种选择性的设计，且其元件布局形态有可能更为复杂。
以下各实施例的说明是参考附加的附图，用以例示本申请可据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」等，仅是参考附加附图的方向。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。另外，在说明书中，除非明确地描述为相反的，否则词语“包括”将被理解为意指包括所述元件，但是不排除任何其它元件。
请参照图1、图2及图3，为本申请背光模组的较佳实施例的局部爆炸示意图及局部组合剖面图。背光模组100，该背光模组100包含：底板110及至少一个侧壁120，该侧壁120与该底板110之间形成空间130，该空间130用以容置组成该背光模组100的元件。
导光板200具有入光面210及连接该入光面210的出光面220，该导光板200设置在该底板110上。
光源组件300包含基板310及多个光源320，光源320可以是发光二极管(Light-Emitting Diode，LED)，所述光源320间隔设置在该基板310上，且所述光源320邻设于该导光板200的入光面210。如图2所示，所述光源320位于该导光板200与该侧壁120之间。
在一个实施应用上，该光源组件300为软性电路板，软性电路板的边缘延伸至该导光板200与该底板110之间，软性电路板是利用黏贴件(图中未示)贴附于该底板110。该导光板200与该底板110之间进一步设置反射片(Reflector sheet)230，用于将该导光板200内的光线朝出光面220反射，且前述用以黏贴该软性电路板的黏贴件也可延伸至该反射片230底下，该黏贴件同时将该反射片230贴附于该底板110。如此，可节省黏贴件的数量、材料成本与组装工时。
支撑结构400包含本体部410及至少一个定位部420，其中，该本体部410设置在该基板310上，且位于所述光源320相对于该导光板200的后方，其中该本体部410的厚度较佳是至少与该光源320高度相同，所述定位部420自该本体部410延伸至所述光源320的顶面上(如图2所示)，所述定位部420用以定位至少一个光学膜片500。在一个实施应用上，所述定位部420横跨所述光源320上方，所述定位部420的两端各具有向下延伸的辅助支撑部421，所述辅助支撑部421位于两个相邻的所述光源320之间并抵靠于该基板310上(如图3所示)，增加所述定位部 420的支撑强度，以便叠加其他背光模组的元件或显示面板后，能藉以分散前述元件或显示面板施予所述光源320的压力，使该背光模组100能够更稳固支撑显示面板。更佳的是，所述辅助支撑部421与该基板310之间以黏贴件固定。
此外，藉由位于所述光源320上方的该支撑结构400的定位部410来实现该光学膜片500的定位配置，不需占用背板或胶框的厚度，便能达到背光模组100窄化与多部材的固定效果。
在一个实施应用上，该光学膜片500包含限位孔510，举例而言，该限位孔510为穿孔，该支撑结构400的定位部420为凸柱，该定位部420的厚度较佳是等于或大于所需使用的光学膜片500的限位孔510的深度，如此可确保该光学膜片500挂设于该定位部420时不易脱出，进而实现光学膜片500的定位配置，不仅达到多部材固定，简化组装工序与缩短工时的功效，还可提升部材搭配良率，降低整体部材成本或因组装不良造成材料重工成本。
在一个实施应用上，该支撑结构400还可包含多个延伸部430，这些延伸部430自该本体部410分别延伸至所述光源组件300中任两个相邻的光源320之间，这些延伸部430的端面431与该导光板200的入光面210接触。
请参照图4及图5，为本案光源组件300与支撑结构400的爆炸示意图及局部组合关系示意图。在一个实施例中，该支撑结构400的该本体部410与该基板310间以第一黏贴件330固定，该第一黏贴件330具有多个延伸段331及多个弯折段332。其中，所述延伸段331对应该支撑结构400的这些延伸部430，所述延伸段331位于所述延伸部430与该基板310之间，所述弯折段332较佳是分别与所述延伸段331一对一连接，所述弯折段332延伸至该导光板200与这些延伸部430的端面431之间(如图4所示)。藉此，第一黏贴件330可同时贴附固定该支撑结构400与光源组件300，以及该支撑结构400与该导光板200的侧面进行定位，本申请的支撑结构400不仅可实现光学膜片500的定位配置，还能同时固定该导光板200，达到多部材相互搭配的固定效果，具有降低成本、缩短工时的功 效。
请参照图6，为本案光学膜片500与支撑结构400的组合关系示意图。在一个实施例中，所述光学膜片500的数量为多个，用来调整背光模组100的光学需求。举例而言，最靠近所述光源320的光学膜片500为反射片520，该反射片520设置于所述光源320的上方，用以遮蔽这些光源320所发出的较大角度的光线，确保该导光板200的光学品味。该反射片520具有结合部521，该结合部521延伸至这些光源320后方的该支撑结构400的上方。该反射片520的结合部521与该支撑结构400的该本体部410的顶面以第二黏贴件340固定，且该第二黏贴件340相对于该支撑结构400的该定位部420形成凹槽341。当然，该反射片520与位于其上方的其他光学膜片500也具有对应该定位部420的限位孔510。组装固定上，透过该支撑结构400上方设有该第二黏贴件340与所述光学膜片500黏贴固定，该第二黏贴件340的该凹槽341对应该定位部420，以确保该反射片520藉由该限位孔510定位于该定位部420时，该反射片520可平贴于该支撑结构400上，且该第二黏贴件340沿着所述光源320的上方朝向该导光板200延伸，并与该导光板200黏贴固定，具有增加光学膜片500的固定及简化组装工序与缩短工时的功效。
图7为本案支撑结构400的另一实施示意图。该支撑结构400的本体部410也可以具有至少一个阶梯部440，该阶梯部440也是用以实现光学膜片500的定位配置，该阶梯部440较佳是位于这些光源320与该侧壁120之间。该阶梯部440包含有多个贴合部450，每个贴合部450分别对应不同张光学膜片。
以该阶梯部440是二阶为说明例，用以对应三张光学膜片的定位，其中最靠近导光板的光学膜片为第一光学膜片530，依序向上堆叠分别为第二光学膜片540及第三光学膜片550。该阶梯部440包含第一贴合部451在第一阶梯部441的顶面，及第二贴合部452在第二阶梯部442的顶面，该第二贴合部452高于该第一贴合部451。
该第一光学膜片530具有第一定位部531，该第一定位部531对应该阶梯部440将该第一光学膜片530定位，即该第一光学膜片530的该第一 定位部531对应该阶梯部440，将该第一贴合部451及第二贴合部452露出，且该第一光学膜片530固定在该支撑结构400的本体部420表面。更佳的是，该第一光学膜片530的表面与该第一贴合部451表面齐平。
该第二光学膜片540具有第二定位部541，该第二定位部541小于该第一定位部531，且该第二定位部541对应该第一阶梯部441将该第二光学膜片540定位，该第二光学膜片540固定在该第一阶梯部441的该第一贴合部451表面。更佳的是，该第二光学膜片540的表面与该第二贴合部452表面齐平。最后该第三光学膜片550为最上方的膜片，实施上可以选择不设置该限位孔510，该第三光学膜片550可直接与第二阶梯部442的该第二贴合部452固定结合，如此将可以使显示器的光学品味更好。实施工序上，可透过设置在该支撑结构400的本体部420表面、第一贴合部451及第二贴合部452的贴合件(图中未示)，就可定位固定所述光学膜片500的所有膜片。如此，可同时达到多部材固定、提升部材搭配良率、简化组装或重工工序、缩短组装或重工工时及降低成本等功效。较佳的是，第一光学膜片530与其下方贴合件和其上方贴合件的总厚度，与该第一阶梯部441的厚度相同，有利于贴附第二光学膜片540的平整度；同理，第二光学膜片540与其上方的贴合件的总厚度，与该第二阶梯部442的厚度相同，不仅有利于贴附第三光学膜片550的平整度，还可确保该第三光学膜片550不需设置用以定位的破孔(即限位孔510)，有利于提高显示器的光学品味。本申请背光模组中，该支撑结构400可依照需求选择以定位部410或阶梯部440来定位光学膜片。
本案的背光模组100透过新型设计架构，利用该支撑结构400达到背光模组薄化与边框窄化的效果，不仅可达到多部材固定，简化组装工序与缩短工时的功效，还能利用支撑结构的设计提升部材搭配良率，简化组装或重工工序，降低整体部材成本或因组装不良造成材料重工成本。
图8为本申请显示装置的局部示意图。前述背光模组100应用于显示装置600，包含显示面板700及前述背光模组100，该显示面板700设于所述背光模组100的该导光板200的出光面220，即该显示面板700设于该背光模组100的上方。
于一个实施应用中，所述背光模组100的定位部420的高度较佳是与该侧壁120的高度相同，或者所述背光模组100的阶梯部420的高度较佳是与该侧壁120的高度相同，藉由该侧壁120与该支撑结构400两者共同支撑在该背光模组100上方的该显示面板700。如此，本申请显示装置取消了习知弯折部，减少弯折部的壁厚，有助于背光模组薄型化，而且改以该支撑结构400来承载该显示面板700，不仅可达成边框窄化的需求，也能降低组装难度，达成缩短工时的功效；此外，取消习知背板或胶框上的凸柱设计，将用以固定光学膜片的该定位部410重叠于该光源320上方，可使本申请显示装置达到边框窄化的功效。
上述揭示的实施形态仅例示性说明本申请的原理、特点及其功效，并非用以限制本申请的可实施范畴，任何本领域技术人员均可在不违背本申请的精神及范畴下，对上述实施形态进行修饰与改变。任何运用本申请所揭示内容而完成的等效改变及修饰，均仍应为权利要求所涵盖。
附图标记说明
100：背光模组
110：底板
120：侧壁
130：空间
200：导光板
210：入光面
220：出光面
230：反射片
300：光源组件
310：基板
320：光源
330：第一黏贴件
331：延伸段
332：弯折段
340：第二黏贴件
341：凹槽
400：支撑结构
410：本体部
420：定位部
421：辅助支撑部
430：延伸部
431：端面
440：阶梯部
441：第一阶梯部
441：第二阶梯部
450：贴合部
451：第一贴合部
452：第二贴合部
500：光学膜片
510：限位孔
520：反射片
521：结合部
530：第一光学膜片
531：第一定位部
540：第二光学膜片
541：第二定位部
550：第三光学膜片
600：显示装置
700：显示面板

Claims (16)

  1. 一种背光模组，包含：
    底板及至少一个侧壁，该侧壁与该底板之间形成空间；
    导光板，其具有入光面及连接该入光面的出光面，该导光板设置在该底板上；
    光源组件，其包含基板及多个光源，所述光源设置在该基板上，且所述光源邻设于该导光板的入光面；
    支撑结构，其设置在该基板上，且该支撑结构具有至少一个定位部，该定位部延伸至该光源组件中至少一个光源的顶面上；及
    至少一个光学膜片，其设有限位孔，该限位孔对应所述定位部。
  2. 如权利要求1所述的背光模组，其中，该定位部的厚度等于或大于所述限位孔的深度。
  3. 如权利要求1所述的背光模组，其中，该支撑结构包含本体部与多个延伸部，所述多个延伸部自该本体部分别延伸至该光源组件中任两个相邻的光源之间。
  4. 如权利要求3所述的背光模组，其中，该支撑结构的所述多个延伸部的端面与该导光板的入光面接触。
  5. 如权利要求3所述的背光模组，其中，该支撑结构的该本体部与该基板间以第一黏贴件固定，且该第一黏贴件具有多个延伸段及多个弯折段，其中，所述延伸段对应该支撑结构的所述多个延伸部，所述延伸段位于所述延伸部与该基板之间，所述弯折段分别与所述延伸段一对一连接，所述弯折段延伸至该导光板与所述多个延伸部的端面之间。
  6. 如权利要求1所述的背光模组，其中，所述光学膜片的数量为多个，最靠近所述光源的光学膜片为反射片，该反射片具有结合部，该结合部延伸至所述多个光源后方。
  7. 如权利要求6所述的背光模组，其中，该支撑结构包含本体部，该反射片的结合部与该支撑结构的该本体部的顶面以第二黏贴件固定，该第二黏贴件相对于该支撑结构的该定位部形成凹槽。
  8. 如权利要求6所述的背光模组，其中，位于该反射片上方的其它光学膜片具有对应该定位部的限位孔。
  9. 如权利要求1所述的背光模组，其中，所述定位部横跨所述光源上方，所述定位部的两端各具有向下延伸的辅助支撑部。
  10. 一种背光模组，包含：
    底板及至少一个侧壁，该侧壁与该底板之间形成空间；
    导光板，其具有入光面及连接该入光面的出光面，该导光板设置在该底板上；
    光源组件，其包含基板及多个光源，所述光源设置在该基板上，且所述光源邻设于该导光板的入光面；
    支撑结构，其设置在该基板上，且该支撑结构具有至少一个阶梯部，该阶梯部位于所述多个光源与该侧壁之间；及
    至少一个光学膜片，其设有定位部，所述定位部对应所述阶梯部。
  11. 如权利要求10所述的背光模组，其中，该阶梯部包含有多个贴合部，所述光学膜片的数量为多个，所述光学膜片的定位部分别对应所述贴合部。
  12. 如权利要求10所述的背光模组，其中，该阶梯部包含第一贴合部及第二贴合部，该第二贴合部高于该第一贴合部，所述光学膜片包含第一光学膜片、第二光学膜片及第三光学膜片，该第一光学膜片具有第一定位部，该第一定位部对应该阶梯部的第一贴合部及第二贴合部将该第一光学膜片定位，该第二光学膜片具有第二定位部，该第二定位部小于该第一定位部，且该第二定位部对应该阶梯部的第二贴合部将该第二光学膜片定位，该第二光学膜片与该第一贴合部固定结合，该第三光学膜片与该第二贴合部固定结合。
  13. 一种显示装置，包含：
    如权利要求1至9中任意一项所述的背光模组，以及
    显示面板，该显示面板设于该导光板的出光面。
  14. 如权利要求13所述的显示装置，其中，所述背光模组中的定位部与侧壁高度相同以支撑该显示面板。
  15. 一种显示装置，包含：
    如权利要求10至12中任意一项所述的背光模组，以及
    显示面板，该显示面板设于该导光板的出光面。
  16. 如权利要求15所述的显示装置，其中，所述背光模组中的阶梯部与侧壁高度相同以支撑该显示面板。
PCT/CN2021/108027 2021-07-23 2021-07-23 背光模组及显示装置 WO2023000283A1 (zh)

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