WO2023044748A1 - 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
WO2023044748A1
WO2023044748A1 PCT/CN2021/120297 CN2021120297W WO2023044748A1 WO 2023044748 A1 WO2023044748 A1 WO 2023044748A1 CN 2021120297 W CN2021120297 W CN 2021120297W WO 2023044748 A1 WO2023044748 A1 WO 2023044748A1
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WO
WIPO (PCT)
Prior art keywords
reflective sheet
backlight module
sheet
wall portion
supporting member
Prior art date
Application number
PCT/CN2021/120297
Other languages
English (en)
French (fr)
Inventor
张政德
庄宏伟
李育儒
侯佩棻
Original Assignee
瑞仪(广州)光电子器件有限公司
瑞仪光电股份有限公司
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 瑞仪(广州)光电子器件有限公司, 瑞仪光电股份有限公司 filed Critical 瑞仪(广州)光电子器件有限公司
Priority to CN202180010986.9A priority Critical patent/CN116171466A/zh
Priority to PCT/CN2021/120297 priority patent/WO2023044748A1/zh
Priority to TW110136589A priority patent/TWI781779B/zh
Priority to US17/948,391 priority patent/US11686893B2/en
Publication of WO2023044748A1 publication Critical patent/WO2023044748A1/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
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
    • G02B6/0031—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
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133605—Direct backlight including specially adapted reflectors
    • 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
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/06—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages the fastening being onto or by the lampholder
    • 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
    • F21V7/00—Reflectors for light sources
    • F21V7/0083—Array of reflectors for a cluster of light sources, e.g. arrangement of multiple light sources in one plane
    • 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
    • F21V7/00—Reflectors for light sources
    • F21V7/04—Optical design
    • F21V7/041—Optical design with conical or pyramidal surface
    • 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
    • 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
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133608—Direct backlight including particular frames or supporting means
    • 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
    • F21Y2105/10—Planar light sources comprising a two-dimensional array of point-like light-generating elements
    • F21Y2105/14—Planar light sources comprising a two-dimensional array of point-like light-generating elements characterised by the overall shape of the two-dimensional array
    • F21Y2105/16—Planar light sources comprising a two-dimensional array of point-like light-generating elements characterised by the overall shape of the two-dimensional array square or rectangular, e.g. for light panels
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133603—Direct backlight with LEDs
    • 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 an optical device, in particular to a backlight module and a display device.
  • Existing backlight modules can be divided into direct-type backlight modules and edge-type backlight modules. Since the light sources of the direct-type backlight module are evenly distributed behind the display panel, the direct-type backlight module can obtain better image uniformity. Generally speaking, a direct type backlight module will have a reflector on the circuit board to increase the brightness of the light source.
  • support columns are often arranged to support the diffuser plate upward.
  • the existing support columns are usually inserted on the bottom plate in a fitting manner, which may cause difficulty in assembly due to tolerances, increasing assembly man-hours and defective rates.
  • the purpose of this application is to provide a backlight module that solves the above problems.
  • a backlight module comprising a backplane, a reflection sheet arranged on the backplane and forming a plurality of openings, a plurality of light-emitting elements in the openings, at least one optical component arranged on the reflection sheet, and at least A support member located between the back plate and the reflection sheet.
  • the supporting member can move along with the reflective sheet.
  • the supporting member has a base portion, and a supporting portion extending from the base portion to the direction of the optical assembly, the base portion of the supporting member is located between the back plate and the reflecting sheet, and the supporting member’s The supporting portion passes through the reflective sheet to support the optical assembly.
  • Another technical means of the present application lies in that the expansion coefficient of the reflection sheet is greater than the expansion coefficient of the support member.
  • the base part of the support supports the reflection sheet.
  • the backlight module further includes an adhesive member for fixing the reflection sheet, the adhesive member has a plurality of notches, the notches are not sticky, and the support The part is located in the notch.
  • the reflective sheet includes a plurality of reflective parts, each reflective part has a bottom wall, and a surrounding wall connected to the bottom wall, the base part of the support has at least one inclined surface, and the inclined surface The shape matches the surrounding wall of the reflection part.
  • the reflective parts of the reflective sheet are arranged in a matrix, and the surrounding walls of the reflective part have a plurality of first wall parts extending along the first direction and a plurality of A second wall extending in a second direction, wherein the first direction is non-parallel to the second direction.
  • the supporting member is arranged on one of the first wall portion and the second wall portion of the reflecting sheet, and the base portion of the supporting member is in the shape of a straight line. type extension.
  • the support is arranged at the intersection of the first wall and the second wall of the reflection sheet, and the base of the support extends in a straight line .
  • the support is arranged at the intersection of the first wall and the second wall of the reflective sheet, and the base of the support extends in a cross shape,
  • the supporting portion of the supporting member is disposed at the intersection of the base portion.
  • Another technical means of the present application is that a hole is formed on the top edge of one of the first wall portion and the second wall portion of the reflective sheet, and the top support portion of the support member passes through The optical assembly is propped up through the perforation of the reflective sheet.
  • a perforated hole is formed at the top edge of the intersection of the first wall portion and the second wall portion of the reflective sheet, and the support portion of the supporting member passes through the The perforation of the reflective sheet props up the optical assembly.
  • Another object of the present application is to provide a display device, including the aforementioned backlight module, and a display panel disposed on the backlight module.
  • the support is not a fixed design but can move with the reflector, so other plates under the reflector do not need to be perforated, which can improve the convenience of assembly and effectively reduce the bulge caused by the reflector. Institutional interference generated by contraction.
  • Fig. 1 is a three-dimensional exploded view, which is a preferred embodiment of the backlight module of the present application;
  • Fig. 2 is a sectional view illustrating the combined internal structure of Fig. 1;
  • Figure 3 is a partially enlarged view, which is an auxiliary illustration of Figure 2;
  • Fig. 4 is a cross-sectional view, which is a preferred embodiment of the display device of the present application.
  • Fig. 5 is an exploded perspective view illustrating another configuration of the supporting member.
  • the backlight module of the present application including a backplane 2, a circuit board 3 arranged on the backplane 2, a plurality of light-emitting elements 4 arranged on the circuit board 3, A reflective sheet 5 disposed on the circuit board 3 and forming a plurality of openings 50, a plurality of optical components 7 disposed on the reflective sheet 5, and at least one support between the back plate 2 and the reflective sheet 5 8.
  • the number of the support members 8 can be adjusted according to the specifications of the backlight module.
  • two support members 8 are taken as an example, and the optical component 7 can be a plurality of stacked optical films. .
  • the support member 8 can move along with the reflective sheet 5, that is to say, the support member 8 is not of a fixed design, so other plates under the reflective sheet 5 do not need to be perforated, which can improve the convenience of assembly, It can also effectively reduce the mechanism interference caused by the expansion and contraction of the reflecting sheet 5 .
  • the opening 50 of the reflection sheet 5 is located at the bottom wall 511 of the reflection portion 51 .
  • the number of the circuit board 3 is one, and it is stacked on the back plate 2, and the light-emitting elements 4 are arranged in a matrix on the circuit board 3, respectively passing through the reflection
  • the opening 50 on the bottom wall 511 of each part 51 is located in the corresponding reflection part 51 .
  • the backlight module further includes an adhesive member 6 for fixing the reflection sheet 5 , as shown in FIG. 2 .
  • the sticker 6 attaches the reflector 5 to the circuit board 3, but the sticker 6 is not necessarily designed, and the reflector 5 can be fixed by other components without restricting its attachment to the circuit board. 3 on. Furthermore, the sticker 6 has a plurality of notches 61 , the notches 61 are not adhesive, and the support member 8 is located in the notches 61 . Due to the above-mentioned design of the notch 61, when the adhesive member 6 attaches the reflective sheet 5 to the circuit board 3, the support member 8 will not be attached to the circuit board 3 at the same time. Therefore, the support member 8 is not designed to be fixed on the circuit board 3 .
  • the circuit board 3 can be a plurality of strip structures arranged at intervals
  • the adhesive member 6 has a plurality of attachment components arranged at intervals on the back plate 2
  • the reflective sheet 5 Attached on the backboard 2 the notch 61 can be a non-adhesive area between the attached components, which can also accommodate the support 8 without placing the support 8 fixed on the backboard 2.
  • each of the support members 8 has a base portion 81, and a supporting portion 82 extending from the base portion 81 to the direction of the optical assembly 7, the base portion of the support member 8 81 is located between the back plate 2 and the reflective sheet 5 , and the support portion 82 of the supporting member 8 passes through the reflective sheet 5 to support the optical assembly 7 .
  • the support 8 in this embodiment does not pass through the backplane 2 (or the circuit board 3), That is to say, there is no need to perform prefabrication work for assembling on the backplane 2 (or the circuit board 3 ), nor to make assembly holes in the backplane 2 (or the circuit board 3 ), which can relatively save manufacturing cost.
  • the circuit board 3 is an expensive component, and the risk of making additional holes is too high, and the circuit board 3 after the holes is difficult to be widely used in other models, which does not help to reduce inventory costs.
  • this embodiment only needs to pass the supporting part 82 of the support member 8 through the reflective sheet 5, and the assembly can be completed when the reflective sheet 5 is attached to the circuit board 3, which can reduce the alignment procedure , man-hours and defect rate, improving the convenience of assembly.
  • the support member 8 of this embodiment is installed on the reflective sheet 5 and can move with the reflective sheet 5. It is a non-fixed design and is not fixed on the circuit board 3 (or The back plate 2) is designed so that when the reflective sheet 5 is slightly shifted due to thermal expansion and contraction, the support 8 will move synchronously, avoiding the occurrence of a gap between the reflective sheet 5 and the support 8 Institutions interfere with each other. Furthermore, in other embodiments, the coefficient of expansion of the reflection sheet 5 is greater than that of the support member 8, so when the reflection sheet 5 is slightly offset due to thermal expansion and contraction, the support member 8 There will be a smaller synchronous movement due to the smaller expansion coefficient.
  • the reflective sheet 5 and the optical assembly 7 are both supported by the supporting member 8.
  • the base portion 81 supports the reflective sheet 5, and the supporting portion 82 supports the optical assembly 7. , so as to effectively ensure that the distance between the reflective sheet 5 and the optical component 7 remains consistent, and it is not easy to change the distance due to thermal expansion and contraction, which will affect the optical taste.
  • the base portion 81 of the support member 8 has at least one inclined surface 811 , and the shape of the inclined surface 811 matches the surrounding wall 512 of the reflecting portion 51 . More specifically, in this embodiment, each base portion 81 has two triangular columns 810 extending in a cross shape, and each triangular column 810 is formed with the slopes 811 on two opposite sides.
  • the surrounding wall 512 of each reflector 51 has a plurality of first wall portions 513 extending along a first direction, and a plurality of second wall portions 514 extending along a second direction, wherein the first direction is non-parallel to the second direction.
  • the support member 8 is disposed at the intersection of the first wall portion 513 and the second wall portion 514 of the reflection sheet 5 , and the one of the triangular columns 810 of the base portion 81
  • the inclined surface 811 cooperates with the first wall portions 513 of two adjacent reflective portions 51
  • the inclined surface 811 of the other triangular prism 810 of the base portion 81 cooperates with the second wall portions 514 of two adjacent reflective portions 51 . Since the inclined surface 811 cooperates with the first wall portion 513 or the second wall portion 514, it can provide sufficient supporting force for the reflective sheet 5, and at the same time allow the support member 8 to be limited on the bottom surface of the reflective sheet 5 fixed position.
  • the supporting portion 82 of the support member 8 is disposed at the intersection of the base portion 81 .
  • the top edge of the intersection of the first wall portion 513 and the second wall portion 514 of the reflective sheet 5 is formed with a perforated hole 52 , and the support portion 82 of the support member 8 passes through the reflective sheet 5
  • the hole 52 supports the optical assembly 7 . Therefore, the support member 8 does not need to be assembled on the back plate 2 (or the circuit board 3) without prefabrication, and because the cost of the reflector 5 is lower than that of the circuit board 3, it is easier to manufacture the reflector 5 on the reflector 5.
  • the difficulty and processing cost of the perforated hole 52 can also be reduced accordingly.
  • the backlight module of the present application is formed.
  • a display panel 9 is disposed on the light-emitting side of the backlight module to form a display device as shown in FIG. 4 .
  • the base portion 81 of the support member 8 may also extend in a straight line, as shown in FIG. 5 .
  • the support member 8 can also be arranged at the intersection of the first wall portion 513 and the second wall portion 514 of the reflective sheet 5, and the support portion 82 of the support member 8 passes through the The perforated hole 52 of the reflection sheet 5 props up the optical assembly 7 .
  • the support member 8 can also be arranged on one of the first wall portion 513 and the second wall portion 514 of the reflective sheet 5, at this time, the perforated hole 52 It is formed on one of the first wall portion 513 and the second wall portion 514 .
  • the perforation 52 is not limited to be formed on the linear position of the first wall portion 513 or the second wall portion 514 , it can also be formed on the first wall portion 513 and the second wall portion 514 .
  • both positions are located at the top edge of the first wall portion 513 and/or the second wall portion 514 without damaging the first wall portion 513 or the second wall
  • the inclined wall surface of the portion 514 is used to avoid affecting the light reflection effect thereof.
  • the backlight module and the display device of the present application can move along with the reflective sheet 5 through the support member 8 which is not of a fixed design.
  • the convenience of assembly is improved, and the mechanism interference caused by the expansion and contraction of the reflector 5 can be effectively reduced.
  • This design concept can be applied to medium and large-sized direct-lit backlight modules, such as products such as automobiles or televisions.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
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  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
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Abstract

一种背光模组，包含背板、设置于该背板上且形成多个开口的反射片、多个位于所述开口之中的发光件、至少一设置于该反射片上的光学组件，及至少一位于该背板与该反射片之间的支撑件。所述支撑件能随着该反射片移动。其中，所述支撑件具有底座部，及由该底座部往该光学组件的方向延伸的顶撑部，所述支撑件的底座部位于该背板与该反射片之间，所述支撑件的顶撑部穿过该反射片而顶撑该光学组件。透过该支撑件并非固定式设计而能随着该反射片移动，因此该反射片下方的其他板材不需破孔，可以提升组装便利性，亦能有效降低因该反射片胀缩所产生的机构干涉。本申请亦提供一种包含该背光模组的显示装置。

Description

背光模组及显示装置 技术领域
本申请涉及一种光学设备，特别涉及一种背光模组及显示装置。
背景技术
现有的背光模组可分为直下式背光模组与侧光式背光模组。由于直下式背光模组的光源均匀分布在显示面板后方，因此，直下式背光模组可以获得较好的画面均匀性。一般而言，直下式背光模组会在电路板上设置反射片，以提高光源亮度。
背光模组的底板与扩散板间，常设置有支撑柱以向上支撑扩散板。然而，现有的支撑柱通常以嵌合的方式穿设于该底板上，容易因为公差而有组装不易的问题，增加组装工时与不良率。
发明内容
因此，本申请的目的，即在提供一种解决上述问题的背光模组。
一种背光模组，包含背板、设置于该背板上且形成多个开口的反射片、多个于所述开口之中的发光件、至少一设置于该反射片上的光学组件，及至少一位于该背板与该反射片之间的支撑件。所述支撑件能随着该反射片移动。其中，所述支撑件具有底座部，及由该底座部往该光学组件的方向延伸的顶撑部，所述支撑件的底座部位于该背板与该反射片之间，所述支撑件的顶撑部穿过该反射片而顶撑该光学组件。
本申请的另一技术手段，是在于该反射片的膨胀系数大于所述支撑件的膨胀系数。
本申请的另一技术手段，是在于所述支撑件的底座部顶撑该反射片。
本申请的另一技术手段，是在于该背光模组还包含用以固定该反射片的黏贴件，该黏贴件具有多个缺口部，所述缺口部不具有黏性，且所述支撑件位于所述缺口部之中。
本申请的另一技术手段，是在于该反射片包括多个反射部，每一反射部具有底壁，及连接该底壁的围绕壁，所述支撑件的底座部具有至少一斜面，该斜面的形状与所述反射部的围绕壁相配合。
本申请的另一技术手段，是在于该反射片的所述反射部呈矩阵排列，所述反射部的所述围绕壁具有多个沿着第一方向延伸的第一壁部以及多个沿着第二方向延伸的第二壁部，其中，该第一方向与该第二方向非平行。
本申请的另一技术手段，是在于所述支撑件设置于该反射片的所述第一壁部与所述第二壁部的其中的一者，且所述支撑件的底座部呈一字型延伸。
本申请的另一技术手段，是在于所述支撑件设置于该反射片的所述第一壁部与所述第二壁部的交叉处，且所述支撑件的底座部呈一字型延伸。
本申请的另一技术手段，是在于所述支撑件设置于该反射片的所述第一壁部与所述第二壁部的交叉处，且所述支撑件的底座部呈交叉状延伸，所述支撑件的该顶撑部设置于该底座部的交叉处。
本申请的另一技术手段，是在于该反射片的所述第一壁部与所述第二壁部的其中的一者的顶缘形成有破孔，所述支撑件的该顶撑部穿过该反射片的破孔而顶撑该光学组件。
本申请的另一技术手段，是在于该反射片的所述第一壁部与所述第二壁部的交叉处的顶缘形成有破孔，所述支撑件的该顶撑部穿过该反射片的破孔而顶撑该光学组件。
本申请的另一目的，即在提供一种显示装置，包含如前述的背光模组，及设置于该背光模组上的显示面板。
本申请的功效在于，该支撑件并非固定式设计而能随着该反射片移动，因此该反射片下方的其他板材不需破孔，可以提升组装便利性，亦能有效降低因该反射片胀缩所产生的机构干涉。
附图说明
图1是立体分解图，为本申请背光模组的较佳实施例；
图2是剖面图，说明图1组合后的内部结构；
图3是局部放大图，辅助说明图2；
图4是剖面图，为本申请显示装置的较佳实施例；及
图5是立体分解图，说明支撑件的另一种形态。
具体实施方式
有关本申请的相关申请专利特色与技术内容，在以下配合参考图式之较佳实施例的详细说明中，将可清楚的呈现。在进行详细说明前应注意的是，类似的组件以相同的编号作表示。
参阅图1及图2，为本申请背光模组的较佳实施例，包含背板2、设置于该背板2上的电路板3、多个设置于该电路板3上的发光件4、设置于该电路板3上且形成多个开口50的反射片5、多个设置于该反射片5上的光学组件7，及至少一位于该背板2与该反射片5之间的支撑件8。其中，所述支撑件8的数量可视背光模组的规格进行调整，于本实施例中以两个支撑件8为例说明，而所述光学组件7可以是多个叠置的光学膜片。其中，所述支撑件8能随着该反射片5移动，也就是说，所述支撑件8并非固定式设计，因此该反射片5下方的其他板材不需破孔，可以提升组装便利性，亦能有效降低因该反射片5胀缩所产生的机构干涉。
接下来更进一步说明本实施例的其他设计，如图1所示，该反射片5包括多个呈矩阵排列的反射部51，每一反射部51具有底壁511，及连接该底壁511的围绕壁512，该反射片5的所述开口50位于所述反射部51的底壁511。要说明的是，于本实施例中，该电路板3数量为一个，并叠置于该背板2上，所述发光件4呈矩阵排列于该电路板3上，分别穿过所述反射部51的底壁511上的开口50而位于相对应的反射部51内。在本实施例中，该背光模组还包含一用以固定该反射片5的黏贴件6，如图2所示。该黏贴件6将该反射片5贴附于该电路板3上，但是该黏贴件6并非必要设计，该反射片5可以被其他构件加以固定而不需限制其贴附于该电 路板3上。再者，该黏贴件6具有多个缺口部61，所述缺口部61不具有黏性，所述支撑件8位于所述缺口部61之中。藉由上述所述缺口部61的设计，当该黏贴件6将该反射片5贴附于该电路板3上时，并不会一并将所述支撑件8贴附于该电路板3上，因此，所述支撑件8并不是固定于该电路板3上的设计。在其他实施例中，所述电路板3可以是多个间隔设置的条状结构，该黏贴件6则具有多个间隔设置于该背板2上的贴附组件，而将该反射片5贴附于该背板2上，所述缺口部61则可以是所述贴附组件之间的无黏性区域，同样可供容置所述支撑件8，而不会将所述支撑件8固定于该背板2上。
如图1及图2所示，每一所述支撑件8具有底座部81，及由该底座部81往所述光学组件7的方向延伸的顶撑部82，所述支撑件8的底座部81位于该背板2与该反射片5之间，所述支撑件8的顶撑部82穿过该反射片5而顶撑该光学组件7。
相较于习知技术需要在背板(或电路板)与反射片上皆形成孔洞再组装支撑件，本实施例的所述支撑件8没有穿过该背板2(或该电路板3)，也就是无需进行前制作业组装于该背板2(或该电路板3)，也不用在该背板2(或该电路板3)制作组装孔，可相对节省制作成本。尤其该电路板3为高价元件，再额外制作破孔的风险太高，破孔后的该电路板3也难以泛用到其他机种，无助于降低库存成本。
相对的，本实施例只需要将所述支撑件8的顶撑部82穿过该反射片5，当该反射片5完成贴附在该电路板3时即可完成组装，可以减少对位程序、工时与不良率，提升组装便利性。
除此之外，本实施例的所述支撑件8穿设于该反射片5上且能随着该反射片5移动，为非固定式的设计，并不是固定于该电路板3上(或该背板2)的设计，因此当该反射片5因为热胀冷缩而有微幅偏移时，所述支撑件8会同步移动，避免该反射片5与所述支撑件8之间产生机构互相干涉。再者，于其他实施例中，该反射片5的膨胀系数大于所述支撑件8的膨胀系数，因此当该反射片5因为热胀冷缩而有微幅偏移时，所述支撑件8会因为较小的膨胀系数而产生更小幅度的同步移动。
另外，该反射片5与该光学组件7共同都被所述支撑件8所顶撑，详细的说，该底座部81顶撑该反射片5，该顶撑部82则顶撑该光学组件7，藉此可有效确保该反射片5与该光学组件7之间的间距维持一致，不易因为热胀冷缩而让间距改变，影响光学品味。
进一步参阅图1，所述支撑件8的底座部81具有至少一斜面811，该斜面811的形状与所述反射部51的围绕壁512相配合。更详细地说，于本实施例中，每一底座部81具有两条三角柱体810呈交叉状延伸，每一条三角柱体810在两相反侧各形成有该斜面811。每一所述反射部51的所述围绕壁512具有多个沿着第一方向延伸的第一壁部513，以及多个沿着第二方向延伸的第二壁部514，其中，该第一方向与该第二方向非平行。
于本实施例中，所述支撑件8设置于该反射片5的所述第一壁部513与所述第二壁部514的交叉处，该底座部81的其中一个三角柱体810的所述斜面811与两相邻反射部51的第一壁部513相配合，该底座部81的另一个三角柱体810的所述斜面811与两个相邻反射部51的第二壁部514相配合。由于所述斜面811与第一壁部513或第二壁部514相配合，因此可以对该反射片5提供足够的支撑力，同时也能让所述支撑件8限位在该反射片5底面的固定位置。
另外，如图3所示，所述支撑件8的该顶撑部82设置于该底座部81的交叉处。该反射片5的所述第一壁部513与所述第二壁部514的交叉处的顶缘形成有破孔52，所述支撑件8的该顶撑部82穿过该反射片5的破孔52而顶撑该光学组件7。因此，所述支撑件8无需进行前制作业组装于该背板2(或该电路板3)，而且由于该反射片5的成本较该电路板3的成本为低，于该反射片5制作所述破孔52的难度与加工成本也就可以随之降低。
该背板2、该电路板3、该黏贴件6、所述支撑件8、该反射片5、所述光学组件7组装完成后，即形成本申请的背光模组。于该背光模组的出光侧设置显示面板9，即形成如图4所示的显示装置。
在某些实施例中，所述支撑件8的底座部81也可以呈一字型延伸，如图5所示。此时，所述支撑件8同样可以设置于该反射片5的所述第一 壁部513与所述第二壁部514的交叉处，所述支撑件8的该顶撑部82穿过该反射片5的破孔52而顶撑该光学组件7。在某些实施例中，所述支撑件8也可以设置于该反射片5的所述第一壁部513与所述第二壁部514的其中的一者，此时，所述破孔52形成于所述第一壁部513与所述第二壁部514的其中的一者。也就是说，所述破孔52并不限定形成在所述第一壁部513或所述第二壁部514的直线位置上，也可以形成在所述第一壁部513与所述第二壁部514的交叉位置上，两种位置皆位于所述第一壁部513及/或所述第二壁部514的顶缘而不会破坏所述第一壁部513或所述第二壁部514的倾斜壁面，以避免影响其光线的反射效果。
综上所述，本申请背光模组及显示装置，透过该支撑件8并非固定式设计而能随着该反射片5移动，因此该反射片5下方的其他板材不需破孔52，可以提升组装便利性，亦能有效降低因该反射片5胀缩所产生的机构干涉，此种设计理念可运用在中大尺寸的直下式背光模组，例如车载或电视等产品。
惟以上所述者，仅为本申请的较佳实施例而已，当不能以此限定本申请实施的范围，即大凡依本申请权利要求书及申请说明内容所作的简单的等效变化与修饰，皆仍属本申请专利涵盖的范围内。
附图标记列表
2         背板
3         电路板
4         发光件
5         反射片
50        开口
51        反射部
511       底壁
512       围绕壁
513       第一壁部
514       第二壁部
52        破孔
6         黏贴件
61        缺口部
7         光学组件
8         支撑件
81        底座部
810       三角柱体
811       斜面
82        顶撑部
9         显示面板

Claims (12)

  1. 一种背光模组，包含：
    背板；
    反射片，位于该背板上，该反射片形成多个开口；
    多个发光件，位于所述开口之中；
    至少一光学组件，设置于该反射片上；及
    至少一支撑件，位于该背板与该反射片之间，所述支撑件能随着该反射片移动，其中，所述支撑件具有底座部，及由该底座部往该光学组件的方向延伸的顶撑部，所述支撑件的底座部位于该背板与该反射片之间，所述支撑件的顶撑部穿过该反射片而顶撑该光学组件。
  2. 如权利要求1所述的背光模组，其中，该反射片的膨胀系数大于所述支撑件的膨胀系数。
  3. 如权利要求1所述的背光模组，其中，所述支撑件的底座部顶撑该反射片。
  4. 如权利要求1所述的背光模组，其中，该背光模组还包含用以固定该反射片的黏贴件，该黏贴件具有多个缺口部，所述缺口部不具有黏性，且所述支撑件位于所述缺口部之中。
  5. 如权利要求1所述的背光模组，其中，该反射片包括多个反射部，每一反射部具有底壁，及连接该底壁的围绕壁，所述支撑件的底座部具有至少一斜面，该斜面的形状与所述反射部的围绕壁相配合。
  6. 如权利要求5所述的背光模组，其中，该反射片的所述反射部呈矩阵排列，所述反射部的所述围绕壁具有多个沿着第一方向延伸的第一壁部以及多个沿着第二方向延伸的第二壁部，其中，该第一方向与该第二方向非平行。
  7. 如权利要求6所述的背光模组，其中，所述支撑件设置于该反射片的所述第一壁部与所述第二壁部的其中的一者，且所述支撑件的底座部呈一字型延伸。
  8. 如权利要求6所述的背光模组，其中，所述支撑件设置于该反射片 的所述第一壁部与所述第二壁部的交叉处，且所述支撑件的底座部呈一字型延伸。
  9. 如权利要求6所述的背光模组，其中，所述支撑件设置于该反射片的所述第一壁部与所述第二壁部的交叉处，且所述支撑件的底座部呈交叉状延伸，所述支撑件的该顶撑部设置于该底座部的交叉处。
  10. 如权利要求6所述的背光模组，其中，该反射片的所述第一壁部与所述第二壁部的其中的一者的顶缘形成有破孔，所述支撑件的该顶撑部穿过该反射片的破孔而顶撑该光学组件。
  11. 如权利要求6所述的背光模组，其中，该反射片的所述第一壁部与所述第二壁部的交叉处的顶缘形成有破孔，所述支撑件的该顶撑部穿过该反射片的破孔而顶撑该光学组件。
  12. 一种显示装置，包含如权利要求1至11项中任一项所述的背光模组，及设置于该背光模组上的显示面板。
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