WO2016169217A1 - 背光模组及液晶显示装置 - Google Patents

背光模组及液晶显示装置 Download PDF

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Publication number
WO2016169217A1
WO2016169217A1 PCT/CN2015/091305 CN2015091305W WO2016169217A1 WO 2016169217 A1 WO2016169217 A1 WO 2016169217A1 CN 2015091305 W CN2015091305 W CN 2015091305W WO 2016169217 A1 WO2016169217 A1 WO 2016169217A1
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WIPO (PCT)
Prior art keywords
quantum dot
fixing
backlight module
substrate
fixing bracket
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Ceased
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PCT/CN2015/091305
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English (en)
French (fr)
Inventor
柴佐
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Shenzhen TCL New Technology Co Ltd
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Shenzhen TCL New Technology Co Ltd
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Application filed by Shenzhen TCL New Technology Co Ltd filed Critical Shenzhen TCL New Technology Co Ltd
Publication of WO2016169217A1 publication Critical patent/WO2016169217A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • 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
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening

Definitions

  • the present invention relates to the field of display technologies, and in particular, to a backlight module and a liquid crystal display device having the same.
  • the backlight module of a common liquid crystal display device generally uses a white LED as a backlight, and then obtains a rich color display through a color filter and a photoresist of the liquid crystal screen.
  • the display color gamut of the liquid crystal display device can generally reach NTSC ((US) National Television Standards Committee) is about 72%.
  • NTSC National Television Standards Committee
  • a main object of the present invention is to provide a backlight module and a liquid crystal display device having the same, which aims to improve the display color gamut of the liquid crystal display device having the backlight module.
  • the present invention provides a backlight module including an LED light bar, a quantum dot package tube, a light guide plate, a back plate and a fixing bracket, the LED light bar comprising a substrate and a plurality of LEDs fixed on the substrate a lamp, the substrate is fixed to the back plate, and the fixing bracket is connected to the substrate or the back plate, the fixing bracket includes a fixing portion for fixing the quantum dot package tube and a bearing body In the support portion of the light guide plate, the quantum dot package tube is fixed at a position facing the LED lamp by the fixing portion, and a light incident surface of the light guide plate faces the quantum dot package tube.
  • the fixing portion is provided with a receiving groove for inserting and fixing the quantum dot sealing tube; and on the side groove wall of the receiving groove adjacent to the LED light bar, the fixing bracket is opened for the LED a plurality of first through holes through which the lamps pass; on the side groove walls of the receiving groove away from the LED light bar, the fixing brackets are provided with a first opening through which light emitted by the LED lamps passes.
  • the fixing bracket is provided at the first opening for limiting a first limiting portion of the quantum dot sealing tube from the receiving slot in a direction away from the LED light bar, the fixing bracket further A second limiting portion for restricting movement of the quantum dot package tube toward the LED light bar is disposed in the receiving groove.
  • the quantum dot package tube is spaced apart from the LED lamp.
  • a portion of the fixing portion adjacent to the back plate extends in a direction away from the LED light bar to form the support portion.
  • a plurality of positioning buckles are protruded from the side of the backing plate of the substrate toward the backing plate, and the plurality of positioning buckles are inserted into the backing plate to be fixed with the backing plate.
  • the backlight module further includes a protective sleeve adjacent to either end or both ends of the fixing bracket, and the protective sleeve is connected to the substrate.
  • the protective sleeve has a protection groove for receiving a secondary sealing end of the quantum dot sealing tube, and one end of the protection groove is adjacent to a fixing portion of the fixing bracket, and the protection groove is away from One end of the fixing bracket is sealed.
  • the present invention further provides a liquid crystal display device including a backlight module, the backlight module including an LED light bar, a quantum dot package tube, a light guide plate, a back plate and a fixing bracket, the LED lamp
  • the strip includes a substrate and a plurality of LED lamps fixed on the substrate, the substrate being fixed to the back plate, the fixing bracket being connected to the substrate or the back plate, the fixing bracket comprising a fixing installation a fixing portion of the quantum dot package tube and a support portion for carrying the light guide plate, wherein the quantum dot package tube is fixed at a position facing the LED lamp by the fixing portion, and a light incident surface of the light guide plate faces The quantum dot encapsulated tube.
  • the fixing portion is provided with a receiving groove for inserting and fixing the quantum dot sealing tube; and on the side groove wall of the receiving groove adjacent to the LED light bar, the fixing bracket is opened for the LED a plurality of first through holes through which the lamps pass; on the side groove walls of the receiving groove away from the LED light bar, the fixing brackets are provided with a first opening through which light emitted by the LED lamps passes.
  • the fixing bracket is provided at the first opening for limiting a first limiting portion of the quantum dot sealing tube from the receiving slot in a direction away from the LED light bar, the fixing bracket further A second limiting portion for restricting movement of the quantum dot package tube toward the LED light bar is disposed in the receiving groove.
  • the quantum dot package tube is spaced apart from the LED lamp.
  • a portion of the fixing portion adjacent to the back plate extends in a direction away from the LED light bar to form the support portion.
  • a plurality of positioning buckles are protruded from the side of the backing plate of the substrate toward the backing plate, and the plurality of positioning buckles are inserted into the backing plate to be fixed with the backing plate.
  • the backlight module further includes a protective sleeve adjacent to either end or both ends of the fixing bracket, and the protective sleeve is connected to the substrate.
  • the protective sleeve has a protection groove for receiving a secondary sealing end of the quantum dot sealing tube, and one end of the protection groove is adjacent to a fixing portion of the fixing bracket, and the protection groove is away from One end of the fixing bracket is sealed.
  • the substrate protrudes from the primary sealing end of the quantum dot package tube in a direction along the length of the substrate.
  • the backlight module provided by the invention is fixed by the substrate and the back plate, and fixes the quantum dot sealing tube directly in front of the LED lamp through the fixing portion of the fixing bracket, and stably supports the light guiding plate on the quantum dot through the supporting portion of the fixing bracket.
  • the front side of the encapsulation tube is such that the mixed white light obtained after the blue LED lamp excites the quantum dot encapsulation tube can enter the light guide plate from the light incident surface to provide backlight for the liquid crystal display device having the backlight module, and the manner provided by the method Compared with the backlight provided by the conventional white LED lamp, the white backlight can improve the color saturation of the liquid crystal, thereby improving the display color gamut of the liquid crystal display device having the backlight module.
  • the white light backlight provided by the method can The display color gamut of the liquid crystal display device is increased by about 30% to about 110% of NTSC.
  • FIG. 1 is a schematic structural view of an embodiment of a backlight module of the present invention
  • Figure 2 is an enlarged schematic view of the portion II of Figure 1;
  • FIG. 3 is a schematic cross-sectional structural view of the backlight module of FIG. 1;
  • FIG. 4 is a schematic structural view of a primary sealing end of a quantum dot package tube of the backlight module of FIG. 1 and an LED light bar;
  • FIG. 5 is a schematic structural view of a secondary sealing end of a quantum dot package tube of the backlight module of FIG. 1 and an LED light bar and a light guide plate.
  • the invention provides a backlight module.
  • the backlight module includes an LED light bar 10, a quantum dot package tube 20, a light guide plate 40, a back plate (not shown), and a fixing bracket 30, wherein the LED light bar 10 includes a substrate 11 and a plurality of LED lamps 12 fixed to the substrate 11, the substrate 11 being fixed to the backing plate.
  • the fixing bracket 30 is connected to the substrate 11 or the backboard, that is, the fixing bracket 30 can be connected to the substrate 11, or the fixing bracket 30 can also be connected to the backboard.
  • the fixing portion 31 of the fixing bracket 30 is fixedly coupled to the substrate 11.
  • the fixing bracket 30 includes a fixing portion 31 for fixing the quantum dot package tube 20 and a supporting portion 32 for carrying the light guide plate 40, and the quantum dot sealing tube 20 is fixed at a position facing the LED lamp 12 by the fixing portion 31 of the fixing bracket 30.
  • the light incident surface 41 of the light guide plate 40 faces the quantum dot package tube 20.
  • at least a portion of the quantum dot package tube 20 faces the LED lamp 12, and at least a portion of the quantum dot package tube 20 faces the light incident surface 41 of the light guide plate 40.
  • the light emitted by the LED lamp 12 on the LED strip 10 can enter the light guide plate 40 via the quantum dot encapsulation tube 20.
  • the LED lamp 12 is a blue LED lamp
  • the substrate 11 has an elongated shape, and a plurality of blue LED lamps are evenly spaced along the length direction of the substrate 11 on the substrate 11
  • the quantum dot package tube 20 is internally packaged to be excited a glass tube of quantum dots of red light and green light, and the axial direction of the quantum dot package tube 20 is parallel to the length extension direction of the substrate 11, and the quantum dot package tube 20 has a primary sealing end 21 and a secondary seal which are opposed in the axial direction thereof.
  • the blue light emitted by the LED lamp 12 on the LED strip 10 passes through the quantum dot encapsulation tube 20 and is mixed with the excited red and green light to obtain white light to provide backlight for the liquid crystal display device having the backlight module;
  • the portion of the fixing portion 31 near the back plate extends in a direction away from the LED light bar 10 to form a support portion 32 of the fixing bracket 30 for supporting the light guide plate 40 to improve the light guide plate.
  • the backlight module provided in this embodiment is fixed to the back plate by the substrate 11 and fixes the quantum dot package tube 20 directly in front of the LED lamp 12 through the fixing portion 31 of the fixing bracket 30, and through the support portion 32 of the fixing bracket 30.
  • the light guide plate 40 is stably carried in front of the quantum dot package tube 20, so that the mixed white light energy obtained after the blue LED lamp 12 excites the quantum dot package tube 20 enters the light guide plate 40 from the light incident surface 41 to have the backlight mode.
  • the liquid crystal display device of the group provides backlight, and the white backlight provided by the method can improve the color saturation of the liquid crystal compared with the backlight provided by the conventional white LED lamp, thereby improving the display color of the liquid crystal display device having the backlight module.
  • the field, in particular, the white light backlight provided by this method can increase the display color gamut of the liquid crystal display device by about 30% to about 110% of NTSC.
  • the fixing portion 31 of the fixing bracket 30 is provided with a receiving groove 311 for inserting and fixing the quantum dot sealing tube 20.
  • the fixing bracket 31 On the side groove wall of the receiving groove 311 near the LED light bar 10, the fixing bracket 31 is provided with a plurality of first through holes 312 through which the LED lamps 12 pass.
  • the fixing bracket 31 On the side groove wall of the receiving groove 311 away from the LED light bar 12, the fixing bracket 31 is further provided with a first opening 313 through which the light emitted by the LED lamp 12 passes. The light emitted by the LED lamp 12 on the LED strip 10 passes through the quantum dot encapsulation tube 20 and the first opening 313 in the receiving groove 311 and enters the light guide plate 40.
  • each of the first through holes 312 faces an LED lamp 12, or a first through hole 312 faces a plurality of adjacent LED lamps 12, as long as the light emitted by each of the LED lamps 12 is ensured.
  • the first opening 313 can pass through the corresponding first through hole 312 and enter the receiving groove 311; and the length of the first opening 313 extends in a direction parallel to the axial direction of the quantum dot sealing tube 20.
  • the fixing bracket 30 is provided with a first limiting portion 314 for restricting the quantum dot sealing tube 20 from being away from the receiving slot 311 in a direction away from the LED light strip 10 at the first opening 313, and the fixing bracket 30 is fixed.
  • a second limiting portion 315 for restricting the movement of the quantum dot package tube 20 toward the LED light bar 10 is further disposed in the receiving groove 311 to achieve a stable relative distance between the quantum dot package tube 20 and the LED light bar 10.
  • the first limiting portion 314 is disposed at intervals along the length extending direction of the fixing bracket 30 , and each of the first limiting portions 314 is included from the first opening 313 .
  • the upper edge of the first opening 313 protrudes from the upper edge, and the lower edge of the first opening 313 protrudes from the lower edge of the first opening 313; similarly, the second limiting portion 315 also has A plurality of the second limiting portions 315 are spaced apart along the length extending direction of the fixing bracket 30 , and the second limiting portion 315 and the first limiting portion 314 are offset.
  • the quantum dot package tube 20 is spaced apart from the LED lamp 12 of the LED light bar 10, that is, there is a gap between the quantum dot package tube 20 and the LED lamp 12, and the light guide plate 40 is provided. There is also a gap between the light incident surface 41 and the quantum dot package tube 20.
  • the width D1 of the gap between the quantum dot package tube 20 and the LED lamp 12 is preferably 0.5 mm
  • the width D2 of the gap between the light incident surface 41 and the quantum dot package tube 20 is preferably 0.5 mm to 0.7 mm.
  • the substrate 11 protrudes from the primary sealing end 21 of the quantum dot package tube 20 in the direction along the length of the substrate 11, so that when more than two sets of the fixing bracket 30 and the quantum are required
  • the combination of the package tubes 20 is performed, the combination of the adjacent two sets of the fixing brackets 30 and the quantum dot sealing tubes 20 can be connected end to end, and the collision of the primary sealing end 21 of the quantum dot sealing tube 20 during the installation can be avoided. The phenomenon.
  • the length D4 of the inactive region of the primary sealing end 21 of the quantum dot package tube 20 is 2.0 mm to 2.5 mm, and the edge between the end surface of the primary sealing end 21 of the quantum dot sealing tube 20 and the corresponding end surface of the substrate 11 is along the substrate.
  • the distance D3 in the longitudinal direction is preferably 0.2 mm; the distance D5 in the longitudinal direction of the substrate 11 between the critical line of the ineffective region of the primary sealing end 21 close to the LED lamp 12 and the end face of the outermost LED lamp 12 is preferably 0.6.
  • the portion of the primary sealing end 21 facing the LED lamp 12 is an effective light-emitting area under the premise of ensuring manufacturing feasibility, thereby ensuring high luminous efficiency of the entire device.
  • the length D7 of the ineffective region of the secondary sealing end 22 of the quantum dot package tube 20 is 8 mm to 10 mm, and the edge between the end surface of the secondary sealing end 22 and the corresponding end surface of the substrate 11
  • the distance D6 in the longitudinal direction of the substrate 11 is preferably 0.5 mm to 1 mm, and the length of the ineffective region of the secondary sealing end 22 near the critical line of the LED lamp 12 and the side of the vertical substrate 11 of the light guide plate 40 is along the length of the substrate 11.
  • the distance D8 is preferably from 7 mm to 8 mm, so that all the white light energy provided by the entire device can enter the light guide plate 40 under the premise of ensuring manufacturing feasibility, thereby further ensuring high luminous efficiency of the entire device.
  • the backlight module further includes a protective cover 50 adjacent to either end or both ends of the fixing bracket 30 , and the protective cover 50 is connected to the substrate 11 .
  • the protective cover 50 is adjacent to the fixing portion 31 of the fixing bracket 30 and is fixed on the substrate 11 of the LED light bar 10 for receiving and fixing the secondary sealing end 22 of the quantum dot sealing tube 20.
  • the end portion of the substrate 11 corresponding to the secondary sealing end 22 has a socket 112 for electrical connection.
  • the protective cover 50 is fixed above the socket 112, and the fixing bracket 30 is difficult due to the presence of the socket 112. Extending to the position where the socket 112 is located, the secondary sealing end 22 of the quantum dot sealing tube 20 is not protected by the fixing bracket 30.
  • the quantum dot is prevented by providing a protective cover 50 for receiving the secondary sealing end 22.
  • the secondary sealing end 22 of the encapsulating tube 20 is exposed, and the secondary sealing end 22 is easy to be damaged during the assembly process of the backlight module.
  • the protective cover 50 has The protective groove 51 of the secondary sealing end 22 of the quantum dot sealing tube 20 is received, and one end of the protective groove 51 in the longitudinal direction is adjacent to the fixing portion 31 of the fixing bracket 30, and is used for inserting and fixing the secondary sealing end 22, the protection groove 51 is sealed at one end away from the fixing bracket 30; preferably, the protective sleeve 50 is further provided with a second opening 52 on the side groove wall of the protection groove 51 away from the LED light bar 10, so as to facilitate the secondary sealing end 22 and the protective sleeve Between 50 Matching the installation, but is not limited to this embodiment may be secured by glue bonding between the end 22 and the groove 51 to ensure the protection of the package tube mounting stability of the quantum dots 20, the secondary seal of the present embodiment.
  • the fixing portion 31 of the fixing bracket 30 and the substrate 11 of the LED light bar 10 are preferably adhered and fixed by the double-sided tape 60.
  • the double-sided tape 60 is provided with a plurality of LED lamps 12 for passing through.
  • the second through hole 61; similarly, the protective cover 50 and the substrate 11 of the LED light bar 10 are also preferably fixed by double-sided adhesive bonding.
  • the present invention also provides a liquid crystal display device.
  • the liquid crystal display device includes the backlight module in the foregoing embodiment.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Planar Illumination Modules (AREA)
  • Liquid Crystal (AREA)

Abstract

一种背光模组，包括LED灯条（10）、量子点封装管（20）、导光板（40）、背板和固定支架（30），LED灯条（10）包括基板（11）及固定在基板上的若干LED灯（12），基板（11）与背板固定，固定支架（30）与基板（11）或背板连接，固定支架（30）包括用于固定安装量子点封装管（20）的固定部（31）和用于承载导光板（40）的支撑部（32），量子点封装管（20）通过固定部（31）固定在面向LED灯（12）的位置，导光板（40）的入光面（41）面向量子点封装管（20）。还公开了一种液晶显示装置。这种背光模组能提高使用其的液晶显示装置的显示色域。

Description

背光模组及液晶显示装置
技术领域
本发明涉及显示技术领域，尤其涉及一种背光模组及一种具有该背光模组的液晶显示装置。
背景技术
目前，常见液晶显示装置的背光模组通常采用白光LED作为背光源，再通过彩色滤光片、配合液晶屏幕的光阻而获得较丰富的色彩显示，目前液晶显示装置的显示色域一般能达到NTSC（（美国）国家电视标准委员会）72%左右。然而，随着消费者对于画面质量要求的提升，目前液晶显示装置的显示色域已难以满足消费者的需求。
发明内容
本发明的主要目的在于提供一种背光模组及一种具有该背光模组的液晶显示装置，旨在提升具有该背光模组的液晶显示装置的显示色域。
为实现上述目的，本发明提供一种背光模组，包括LED灯条、量子点封装管、导光板、背板和固定支架，所述LED灯条包括基板及固定在所述基板上的若干LED灯，所述基板与所述背板固定，所述固定支架与所述基板或所述背板连接，所述固定支架包括用于固定安装所述量子点封装管的固定部和用于承载所述导光板的支撑部，所述量子点封装管通过所述固定部固定在面向所述LED灯的位置，所述导光板的入光面面向所述量子点封装管。
优选地，所述固定部开设有供所述量子点封装管插入固定的收容槽；在所述收容槽的靠近所述LED灯条的侧槽壁上，所述固定支架开设有供所述LED灯穿过的若干第一通孔；在所述收容槽的远离所述LED灯条的侧槽壁上，所述固定支架开设有供所述LED灯发出的光线穿过的第一开口。
优选地，所述固定支架在所述第一开口处设有用于限制所述量子点封装管向远离所述LED灯条的方向脱离所述收容槽的第一限位部，所述固定支架还在所述收容槽内设有用于限制所述量子点封装管向靠近所述LED灯条移动的第二限位部。
优选地，所述量子点封装管与所述LED灯之间间隔开设置。
优选地，所述固定部的靠近所述背板的部分向背离所述LED灯条的方向延伸而形成所述支撑部。
优选地，所述基板的靠近所述背板的侧边朝向所述背板间隔凸设有若干定位卡扣，所述若干定位卡扣插入所述背板中而与所述背板固定。
优选地，所述背光模组还包括保护套，所述保护套邻接于所述固定支架长度方向的任意一端或两端，并且所述保护套与所述基板连接。
优选地，所述保护套具有用于收容所述量子点封装管的二次封口端的保护槽，所述保护槽沿长度方向的一端与所述固定支架的固定部邻接，所述保护槽在远离所述固定支架方向的一端封口。
优选地，所述基板在沿所述基板长度的方向上凸出于所述量子点封装管的一次封口端。
此外，为实现上述目的，本发明还提供一种液晶显示装置，包括背光模组，所述背光模组包括LED灯条、量子点封装管、导光板、背板和固定支架，所述LED灯条包括基板及固定在所述基板上的若干LED灯，所述基板与所述背板固定，所述固定支架与所述基板或所述背板连接，所述固定支架包括用于固定安装所述量子点封装管的固定部和用于承载所述导光板的支撑部，所述量子点封装管通过所述固定部固定在面向所述LED灯的位置，所述导光板的入光面面向所述量子点封装管。
优选地，所述固定部开设有供所述量子点封装管插入固定的收容槽；在所述收容槽的靠近所述LED灯条的侧槽壁上，所述固定支架开设有供所述LED灯穿过的若干第一通孔；在所述收容槽的远离所述LED灯条的侧槽壁上，所述固定支架开设有供所述LED灯发出的光线穿过的第一开口。
优选地，所述固定支架在所述第一开口处设有用于限制所述量子点封装管向远离所述LED灯条的方向脱离所述收容槽的第一限位部，所述固定支架还在所述收容槽内设有用于限制所述量子点封装管向靠近所述LED灯条移动的第二限位部。
优选地，所述量子点封装管与所述LED灯之间间隔开设置。
优选地，所述固定部的靠近所述背板的部分向背离所述LED灯条的方向延伸而形成所述支撑部。
优选地，所述基板的靠近所述背板的侧边朝向所述背板间隔凸设有若干定位卡扣，所述若干定位卡扣插入所述背板中而与所述背板固定。
优选地，所述背光模组还包括保护套，所述保护套邻接于所述固定支架长度方向的任意一端或两端，并且所述保护套与所述基板连接。
优选地，所述保护套具有用于收容所述量子点封装管的二次封口端的保护槽，所述保护槽沿长度方向的一端与所述固定支架的固定部邻接，所述保护槽在远离所述固定支架方向的一端封口。
优选地，所述基板在沿所述基板长度的方向上凸出于所述量子点封装管的一次封口端。
本发明所提供的背光模组通过基板与背板固定，并通过固定支架的固定部将量子点封装管固定在LED灯的正前方，以及通过固定支架的支撑部将导光板稳定承载在量子点封装管的正前方，从而使得蓝光LED灯激发量子点封装管后所得的混合白光能从入光面进入导光板中而为具有该背光模组的液晶显示装置提供背光，此种方式所提供的白光背光相对于传统的白光LED灯所提供的背光，能提高液晶的色彩饱和度，从而提高具有该背光模组的液晶显示装置的显示色域，具体地，此种方式所提供的白光背光能将液晶显示装置的显示色域提升约30%，达到NTSC110%左右。
附图说明
图1为本发明背光模组一实施例的结构示意图；
图2为图1中II处的放大示意图；
图3为图1中背光模组的截面结构示意图；
图4为图1中背光模组的量子点封装管的一次封口端与LED灯条之间的结构示意图；
图5为图1中背光模组的量子点封装管的二次封口端与LED灯条、导光板之间的结构示意图。
本发明目的的实现、功能特点及优点将结合实施例，参照附图做进一步说明。
具体实施方式
应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。
本发明提供一种背光模组。
参照图1至图3，在一实施例中，该背光模组包括LED灯条10、量子点封装管20、导光板40、背板（图未示）和固定支架30，其中，LED灯条10包括基板11及固定在基板11上的若干LED灯12，该基板11与背板固定。固定支架30与基板11或背板连接，也就是说固定支架30可以和基板11连接，或者固定支架30也可以和背板连接。优选地，固定支架30的固定部31与基板11固定连接。固定支架30包括用于固定安装量子点封装管20的固定部31和用于承载导光板40的支撑部32，量子点封装管20通过固定支架30的固定部31固定在面向LED灯12的位置，导光板40的入光面41面向量子点封装管20。优选地，量子点封装管20的至少一部分正对LED灯12，量子点封装管20的至少一部分正对导光板40的入光面41。LED灯条10上的LED灯12所发出的光线能经量子点封装管20而进入导光板40中。本实施例中，LED灯12为蓝光LED灯，基板11呈长条形，多个蓝光LED灯在基板11上沿基板11的长度方向均匀间隔排列；量子点封装管20为内封装有能激发红色光和绿色光的量子点的玻璃管，且量子点封装管20的轴线方向平行于基板11的长度延伸方向，量子点封装管20具有沿其轴向相对的一次封口端21和二次封口端22；LED灯条10上的LED灯12所发出的蓝光经过量子点封装管20后与所激发的红光和绿光混合得到白光，以为具有该背光模组的液晶显示装置提供背光；本实施例中，具体地，固定部31的靠近背板的部分向背离LED灯条10的方向延伸而形成固定支架30的支撑部32，该支撑部32用于承载导光板40，以提高导光板40与量子点封装管20之间相对位置的稳定性；基板11的靠近背板的侧边朝向背板间隔凸设有若干定位卡扣111，该若干定位卡扣111插入背板中而实现与背板的固定。
本实施例所提供的背光模组通过基板11与背板固定，并通过固定支架30的固定部31将量子点封装管20固定在LED灯12的正前方，以及通过固定支架30的支撑部32将导光板40稳定承载在量子点封装管20的正前方，从而使得蓝光LED灯12激发量子点封装管20后所得的混合白光能从入光面41进入导光板40中而为具有该背光模组的液晶显示装置提供背光，此种方式所提供的白光背光相对于传统的白光LED灯所提供的背光，能提高液晶的色彩饱和度，从而提高具有该背光模组的液晶显示装置的显示色域，具体地，此种方式所提供的白光背光能将液晶显示装置的显示色域提升约30%，达到NTSC110%左右。
在本实施例中，具体地，固定支架30的固定部31开设有供量子点封装管20插入固定的收容槽311。在收容槽311的靠近LED灯条10的侧槽壁上，固定支架31开设有供LED灯12穿过的若干第一通孔312。在收容槽311的远离LED灯条12的侧槽壁上，固定支架31还开设有供LED灯12发出的光线穿过的第一开口313。LED灯条10上的LED灯12所发出的光线依次经过收容槽311中的量子点封装管20和第一开口313后进入导光板40中。本实施例中，每一第一通孔312正对一LED灯12，或者，一个第一通孔312正对几个相邻的LED灯12，只要保证每个LED灯12所发出的光都能穿过对应的第一通孔312而进入收容槽311中即可；而第一开口313的长度延伸方向平行于量子点封装管20的轴线方向。
在本实施例中，进一步地，固定支架30在第一开口313处设有用于限制量子点封装管20向远离LED灯条10的方向脱离收容槽311的第一限位部314，固定支架30还在收容槽311内设有限制量子点封装管20向靠近LED灯条10移动的第二限位部315，以实现量子点封装管20与LED灯条10之间的相对距离稳定。本实施例中，第一限位部314有若干个，该若干个第一限位部314沿固定支架30的长度延伸方向间隔设置，且每一第一限位部314包括自第一开口313的上沿向第一开口313的下沿凸设的上扣、以及自第一开口313的下沿向第一开口313的上沿凸设的下扣；类似的，第二限位部315也有若干个，该若干个第二限位部315沿固定支架30的长度延伸方向间隔设置，且第二限位部315和第一限位部314错开设置。
参照图3，在本实施例中，量子点封装管20与LED灯条10的LED灯12之间间隔开设置，也就是说量子点封装管20与LED灯12之间有间隙，导光板40的入光面41与量子点封装管20之间也有间隙。本实施例中，量子点封装管20与LED灯12之间间隙的宽度D1优选为0.5毫米，而入光面41与量子点封装管20之间间隙的宽度D2优选为0.5毫米至0.7毫米。LED灯12发出的热量可以通过量子点封装管20与LED灯12之间的间隙传递，由此，可以提高LED灯12的散热效果，并且间隙设置合理简单。
参照图4，在本实施例中，进一步地，基板11在沿基板11长度的方向上凸出于量子点封装管20的一次封口端21，以使得当需要两组以上的固定支架30和量子点封装管20的组合时，能将相邻的两组固定支架30和量子点封装管20的组合进行首尾连接，且能避免量子点封装管20的一次封口端21在安装过程中出现碰撞损坏的现象。本实施例中，量子点封装管20的一次封口端21的无效区域长度D4为2.0毫米至2.5毫米，量子点封装管20的一次封口端21的端面与基板11的对应端面之间的沿基板11长度方向的距离D3优选为0.2毫米；一次封口端21的无效区域的靠近LED灯12的临界线与最靠外的LED灯12的端面之间的沿基板11长度方向的距离D5优选为0.6毫米，以在保证制造可行性的前提下，使得一次封口端21的正对LED灯12的部分为有效发光区域，从而保证整个装置的高光效。
参照图5，在本实施例中，量子点封装管20的二次封口端22的无效区域长度D7为8毫米至10毫米，二次封口端22的端面与基板11的对应端面之间的沿基板11长度方向的距离D6优选为0.5毫米至1毫米，二次封口端22的无效区域的靠近LED灯12的临界线与导光板40的垂直基板11的侧边之间的沿基板11长度方向的距离D8优选为7毫米至8毫米，以在保证制造可行性的前提下，使得整个装置所提供的白光能全部进入导光板40中，从而进一步保证整个装置高光效。
参照图1，在本实施例中，进一步地，该背光模组还包括保护套50，该保护套50邻接于固定支架30长度方向的任意一端或两端，并且保护套50与基板11连接。具体地，保护套50邻接于固定支架30的固定部31，并固定在LED灯条10的基板11上，该保护套50用于收容固定量子点封装管20的二次封口端22。本实施例中，基板11的与二次封口端22对应的端部具有用于电连接的插座112，保护套50固定于插座112的上方，也正由于插座112的存在，使得固定支架30难以延伸到插座112所在的位置，故量子点封装管20的二次封口端22未得到固定支架30的保护，本实施例通过设置用于收容固定二次封口端22的保护套50来防止量子点封装管20的二次封口端22出现裸露现象，而二次封口端22裸露时容易在背光模组的组装过程中出现碰撞受损现象；本实施例中，具体地，保护套50具有用于收容量子点封装管20的二次封口端22的保护槽51，该保护槽51沿长度方向的一端与固定支架30的固定部31邻接，并用于供二次封口端22插入固定，该保护槽51在远离固定支架30方向的一端封口；优选地，保护套50还在保护槽51的远离LED灯条10的侧槽壁上开设有第二开口52，以便于二次封口端22与保护套50之间的匹配安装，本实施例中为保证量子点封装管20的安装稳定性，其二次封口端22与保护槽51之间可以但不限于通过胶水粘接固定。
在本实施例中，固定支架30的固定部31与LED灯条10的基板11之间优选通过双面胶60粘接固定，当然，该双面胶60开设有供LED灯12穿过的若干第二通孔61；类似的，保护套50与LED灯条10的基板11之间也优选通过双面胶粘接固定。
本发明还提供一种液晶显示装置。
在一实施例中，该液晶显示装置包括前述实施例中的背光模组。
以上仅为本发明的优选实施例，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。

Claims (20)

  1. 一种背光模组，其特征在于，所述背光模组包括LED灯条、量子点封装管、导光板、背板和固定支架，所述LED灯条包括基板及固定在所述基板上的若干LED灯，所述基板与所述背板固定，所述固定支架与所述基板或所述背板连接，所述固定支架包括用于固定安装所述量子点封装管的固定部和用于承载所述导光板的支撑部，所述量子点封装管通过所述固定部固定在面向所述LED灯的位置，所述导光板的入光面面向所述量子点封装管。
  2. 如权利要求1所述的背光模组，其特征在于，所述固定部开设有供所述量子点封装管插入固定的收容槽；在所述收容槽的靠近所述LED灯条的侧槽壁上，所述固定支架开设有供所述LED灯穿过的若干第一通孔；在所述收容槽的远离所述LED灯条的侧槽壁上，所述固定支架开设有供所述LED灯发出的光线穿过的第一开口。
  3. 如权利要求2所述的背光模组，其特征在于，所述固定支架在所述第一开口处设有用于限制所述量子点封装管向远离所述LED灯条的方向脱离所述收容槽的第一限位部，所述固定支架还在所述收容槽内设有用于限制所述量子点封装管向靠近所述LED灯条移动的第二限位部。
  4. 如权利要求3所述的背光模组，其特征在于，所述量子点封装管与所述LED灯之间间隔开设置。
  5. 如权利要求1所述的背光模组，其特征在于，所述固定部的靠近所述背板的部分向背离所述LED灯条的方向延伸而形成所述支撑部。
  6. 如权利要求1所述的背光模组，其特征在于，所述基板的靠近所述背板的侧边朝向所述背板间隔凸设有若干定位卡扣，所述若干定位卡扣插入所述背板中而与所述背板固定。
  7. 如权利要求1所述的背光模组，其特征在于，所述背光模组还包括保护套，所述保护套邻接于所述固定支架长度方向的任意一端或两端，并且所述保护套与所述基板连接。
  8. 如权利要求7所述的背光模组，其特征在于，所述保护套具有用于收容所述量子点封装管的二次封口端的保护槽，所述保护槽沿长度方向的一端与所述固定支架的固定部邻接，所述保护槽在远离所述固定支架方向的一端封口。
  9. 如权利要求2所述的背光模组，其特征在于，所述背光模组还包括保护套，所述保护套邻接于所述固定支架长度方向的任意一端或两端，并且所述保护套与所述基板连接。
  10. 如权利要求1所述的背光模组，其特征在于，所述基板在沿所述基板长度的方向上凸出于所述量子点封装管的一次封口端。
  11. 一种液晶显示装置，其特征在于，包括背光模组，所述背光模组包括LED灯条、量子点封装管、导光板、背板和固定支架，所述LED灯条包括基板及固定在所述基板上的若干LED灯，所述基板与所述背板固定，所述固定支架与所述基板或所述背板连接，所述固定支架包括用于固定安装所述量子点封装管的固定部和用于承载所述导光板的支撑部，所述量子点封装管通过所述固定部固定在面向所述LED灯的位置，所述导光板的入光面面向所述量子点封装管。
  12. 如权利要求11所述的液晶显示装置，其特征在于，所述固定部开设有供所述量子点封装管插入固定的收容槽；在所述收容槽的靠近所述LED灯条的侧槽壁上，所述固定支架开设有供所述LED灯穿过的若干第一通孔；在所述收容槽的远离所述LED灯条的侧槽壁上，所述固定支架开设有供所述LED灯发出的光线穿过的第一开口。
  13. 如权利要求12所述的液晶显示装置，其特征在于，所述固定支架在所述第一开口处设有用于限制所述量子点封装管向远离所述LED灯条的方向脱离所述收容槽的第一限位部，所述固定支架还在所述收容槽内设有用于限制所述量子点封装管向靠近所述LED灯条移动的第二限位部。
  14. 如权利要求13所述的液晶显示装置，其特征在于，所述量子点封装管与所述LED灯之间间隔开设置。
  15. 如权利要求11所述的液晶显示装置，其特征在于，所述固定部的靠近所述背板的部分向背离所述LED灯条的方向延伸而形成所述支撑部。
  16. 如权利要求11所述的液晶显示装置，其特征在于，所述基板的靠近所述背板的侧边朝向所述背板间隔凸设有若干定位卡扣，所述若干定位卡扣插入所述背板中而与所述背板固定。
  17. 如权利要求11所述的液晶显示装置，其特征在于，所述背光模组还包括保护套，所述保护套邻接于所述固定支架长度方向的任意一端或两端，并且所述保护套与所述基板连接。
  18. 如权利要求17所述的液晶显示装置，其特征在于，所述保护套具有用于收容所述量子点封装管的二次封口端的保护槽，所述保护槽沿长度方向的一端与所述固定支架的固定部邻接，所述保护槽在远离所述固定支架方向的一端封口。
  19. 如权利要求12所述的液晶显示装置，其特征在于，所述背光模组还包括保护套，所述保护套邻接于所述固定支架长度方向的任意一端或两端，并且所述保护套与所述基板连接。
  20. 如权利要求11所述的液晶显示装置，其特征在于，所述基板在沿所述基板长度的方向上凸出于所述量子点封装管的一次封口端。
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CN204062680U (zh) * 2014-08-06 2014-12-31 冠捷显示科技（中国）有限公司 一种装有量子点封装管的背光模组及其显示装置
CN204554543U (zh) * 2015-04-21 2015-08-12 深圳Tcl新技术有限公司 背光模组及液晶显示装置

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CN108400224A (zh) * 2017-05-12 2018-08-14 苏州星烁纳米科技有限公司 量子点封装结构以及背光模组
CN108400224B (zh) * 2017-05-12 2024-05-24 苏州星烁纳米科技有限公司 量子点封装结构以及背光模组
CN108766234A (zh) * 2018-07-10 2018-11-06 合肥惠科金扬科技有限公司 防漏光的显示设备

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