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WO2018145325A1 - Backlight assembly and liquid crystal display module - Google Patents

Backlight assembly and liquid crystal display module Download PDF

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Publication number
WO2018145325A1
WO2018145325A1 PCT/CN2017/073676 CN2017073676W WO2018145325A1 WO 2018145325 A1 WO2018145325 A1 WO 2018145325A1 CN 2017073676 W CN2017073676 W CN 2017073676W WO 2018145325 A1 WO2018145325 A1 WO 2018145325A1
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WIPO (PCT)
Prior art keywords
light
guide plate
light guide
disposed
light bar
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2017/073676
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French (fr)
Chinese (zh)
Inventor
阙成文
丘永元
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TCL China Star Optoelectronics Technology Co Ltd
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Shenzhen China Star Optoelectronics Technology Co Ltd
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Application filed by Shenzhen China Star Optoelectronics Technology Co Ltd filed Critical Shenzhen China Star Optoelectronics Technology Co Ltd
Publication of WO2018145325A1 publication Critical patent/WO2018145325A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • 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
    • 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

Definitions

  • the invention relates to a liquid crystal panel module technology, in particular to a backlight assembly and a liquid crystal display module.
  • the backlight of the common liquid crystal display module is mainly divided into two types: the light-input type and the direct-type type.
  • the side-input type backlight module has an advantage in thickness, which is advantageous for thinning the product, but the brightness of the side away from the light source will be Lower than the side close to the light source, resulting in uneven brightness distribution; while the direct-lit backlight is more conducive to the partition control of the display, to obtain a better display, but how to achieve a better display while still achieving the traditional
  • the thickness advantage of the side-lit backlight assembly has become an urgent problem to be solved.
  • the present invention provides a backlight assembly and a liquid crystal display module, thereby enabling the multi-partition control of the side-entry backlight, thereby reducing the problem of uneven thickness and uneven brightness distribution.
  • the present invention provides a backlight assembly including an optical module disposed on a backplane, the optical module including a light bar, a light guide plate, and a reflective sheet disposed at a lower end of the light guide plate, the optical module being provided with at least two groups, each The optical module further includes a first base that carries a light guide plate and a reflection sheet of the adjacent optical module, and the light bar is disposed on a side of the first base opposite to the side of the light guide plate, and is provided on the first base.
  • An inclined portion extending obliquely in the direction of the light plate, wherein the upper end surface of the inclined portion is a sloped surface, and a reflective layer for reflecting light emitted from the light bar of the adjacent optical module is disposed on the inclined surface, and the optical module is covered with the optical In the diaphragm group, the reflective surface of the reflective layer faces the optical film group.
  • the inclined portion is provided with an extending portion horizontally extending toward the upper end surface of the light guide plate, and the extending portion forms a pressing portion, and the pressing portion is pressed on a side of the light guiding plate opposite to the light bar.
  • the inclined portion is sequentially increased from the first base toward the height of the light guide plate.
  • the first base is L-shaped, including a lateral portion and a vertical portion disposed perpendicular to the lateral portion, and a light guide plate carrying the adjacent set of optical modules and the reflective sheet are formed between the lateral portion and the vertical portion
  • the first carrying portion on one side of the light bar forms a second carrying portion for fixing the light bar on a side of the vertical portion opposite to the light bar, and the inclined portion is provided on the vertical portion.
  • a second base is disposed at a lower end of the light guide plate of each group of optical modules opposite to the light bar.
  • the vertical portion is provided with a groove on a side opposite to a side of the light guide plate of the adjacent optical module from the side of the light bar, the groove is parallel to the light bar, and the filler is provided in the groove .
  • the optical film set includes a light transmissive plate disposed above the optical module and at least one optical film attached to the light transmissive plate.
  • the light transmissive plate is a diffusion plate.
  • the present invention also provides a liquid crystal display panel comprising a display panel, and further comprising the backlight assembly.
  • the present invention realizes the partition control of the backlight by providing at least two sets of side-entry optical modules, and can obtain a better display picture; and the backlight assembly is used because of the side-entry backlight structure.
  • the thickness is reduced, and a reflective layer is disposed on each group of optical modules, thereby performing brightness compensation on the splicing portions of the two optical modules, which not only solves the problem of uneven brightness distribution, but also solves the problem of darkness at the splicing place.
  • FIG. 1 is a schematic structural view of a backlight assembly of the present invention.
  • a backlight assembly of the present invention includes at least two sets of optical modules 2 disposed on the backplane 1 .
  • Each set of optical modules 2 includes a light bar 3 , a light guide plate 4 , and is disposed at a lower end of the light guide plate 4 .
  • a reflective sheet 5 a first base 6 carrying the light guide plate 4 of the adjacent optical module 2 and the reflective sheet 5, and the light strip 3 is disposed on the opposite side of the first base 6 from the side of the light guide plate 4,
  • the base 6 is provided with an inclined portion 61 extending obliquely in the direction of the light guide plate 4.
  • the upper end surface of the inclined portion 61 is a sloped surface on which the light bar 3 of the adjacent optical module 2 is disposed.
  • the light reflecting reflective layer 62, the reflective layer 62 is made of a material that can reflect the light source, and is not specifically limited herein; the present invention adopts a modular optical module 2,
  • the side-lit backlight assembly can have the partition control function of the direct-type backlight assembly, so that the liquid crystal display module adopting the invention can obtain the same display screen as the liquid crystal display module using the direct-lit backlight assembly, and solves the direct-type backlight assembly.
  • the thickness problem is a material that can reflect the light source, and is not specifically limited herein; the present invention adopts a modular optical module 2
  • the side-lit backlight assembly can have the partition control function of the direct-type backlight assembly, so that the liquid crystal display module adopting the invention can obtain the same display screen as the liquid crystal display module using the direct-lit backlight assembly, and solves the direct-type backlight assembly.
  • the optical module 2 is covered with an optical film set 7 comprising a light transmissive plate 71 disposed above the optical module 2 and at least one optical film 72 attached to the light transmissive plate 7,
  • the light transmissive plate 71 is a diffusing plate, the reflecting surface of the reflecting layer 62 faces the optical film group 7, and the diffusing plate 71 is disposed between the lower end of the optical film group 7 and the optical module 2.
  • all the optical modules 2 share the same
  • An optical film group 7 covering the optical module 2 reflects the light emitted from the adjacent optical module 2 through the reflective layer 62 to the splicing portion of the two optical modules 2 for brightness compensation, thereby solving the darkness of the splicing portion. problem.
  • an extension portion horizontally extending toward the upper end surface of the light guide plate 4 is provided on the inclined portion 61, and the extension portion forms a nip portion 63, and the nip portion 63 is pressed against
  • the nip portion 63 can also obtain a stable and precise positional relationship between the light guide plate 4 and the light bar 3, thereby obtaining a good optical coupling relationship.
  • the inclined portion 61 is sequentially increased in height from the first base 6 toward the light guide plate 4.
  • the first base 6 of the present invention can be realized by a structure in which the first base 6 is L-shaped, including a lateral portion 64 and a vertical portion 65 disposed perpendicularly to the lateral portion 64, and the lateral portion 64 and the vertical portion 65 Forming a light guide plate 4 carrying an adjacent group of optical modules 2 and a first bearing portion 66 on the side of the light strip 3 away from the light strip 3, and forming a light strip on the vertical portion 65 opposite to the light strip 3
  • the second carrying portion 67 of the third lamp holder 3 is attached and fixed to the second carrying portion 67, and the inclined portion 61 is provided on the vertical portion 65.
  • a second base 8 may be disposed at a lower end of the light guide plate 3 of each of the optical modules 2 opposite to the light bar 2, thereby solving the balance problem of the light guide plate 4, but in order to achieve a better modularization problem, the first The lateral portion 64 of a base 6 extends to the light bar 2, thereby eliminating the need to assemble the second base 8.
  • a groove 68 is provided on a side of the vertical portion 65 opposite to the side of the light guide plate 4 of the adjacent optical module 2 that is away from the light bar 3, and the groove 68 is parallel to the light bar 3, and is in the groove 68.
  • a filler 69 is provided to prevent the light guide plate 4 from being in hard contact with the first base 6.
  • the optical module 2 of the present invention is provided with two groups, respectively a first optical module and a second optical module; when assembling, the first optical module is first A base 6, a second base 8, and a first base 6 of the second optical module are placed on the backboard 1, and the light bar 3 of the first optical module is fixed on the second carrying portion 67, and then the first optical is sequentially placed.
  • the reflection sheet 5 of the module and the light guide plate 4 are inserted into the nip portion 63 of the first optical module near the side of the light guide plate 4, so that the light guide plate 4 is adjacent to the side of the light bar 3 and the lamp.
  • the light-emitting strips of the strips 3 are oppositely fixed, and the reflective sheet 5 of the first optical module and the light guide plate 4 are fixed by the nip portion 63 of the first optical module. At this time, the light guide plate 4 and the emission sheet 5 of the first optical module are away from each other.
  • One side of the light bar 3 is placed on the first carrier portion 66 of the first base 6 in the second optical module, and assembly is continued in this manner, thereby completing the mounting of all the optical modules.
  • the present invention also discloses a liquid crystal display module, including a display panel 9 and the above backlight assembly.
  • the thickness of the light guide plate 4, the distribution of the dots of the light guide plate 4, the separation distance of the splicing place, and the height of the optical film group from the light guide plate 4 can be adjusted.
  • the brightness uniformity effect can reach 88. More than %, to meet the needs of TV design.

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

Abstract

A backlight assembly and a liquid crystal display panel comprising a display panel (9) and the backlight assembly. The backlight assembly comprises optical modules (2) disposed on a back plate (1); each optical module (2) comprises a light bar (3), a light guide plate (4), and a reflector plate (5) disposed at the lower end of the light guide plate (4); at least two sets of optical modules (2) are provided; each set of optical module (2) further comprises a first base (6) bearing the light guide plate (4) and the reflector plate (5) of an adjacent set of optical modules (2); the light bar (3) is disposed on the side of the first base (6) opposite to a side edge of the light guide plate (4); the first base (6) is provided with an inclined portion (61) obliquely extending towards the light guide plate (4); the upper end face of the inclined portion (61) is an inclined surface, a reflecting layer (62) used for reflecting light emitted by the light bars (2) of the adjacent set of optical modules (2) is provided on the inclined surface; each optical module (2) is covered with an optical film set (7); and the reflecting surface of the reflecting layer (62) faces toward the optical film set (7). Compared with the prior art, partition control of a backlight source is achieved, thickness is reduced, and the problem of low brightness at the splice is also resolved.

Description

背光组件及液晶显示模组Backlight assembly and liquid crystal display module 技术领域Technical field

本发明涉及一种液晶面板模组技术，特别是一种背光组件及液晶显示模组。The invention relates to a liquid crystal panel module technology, in particular to a backlight assembly and a liquid crystal display module.

背景技术Background technique

常见的液晶显示模组的背光主要分侧入光式及直下式两类，侧入光式背光模组在厚度上有优势，有利于进行产品薄型化设计，但是其远离光源的一侧亮度会低于靠近光源的一侧，导致亮度分布不均匀；而直下式背光则更利于做显示的分区控制，获得更好的显示画面，但是如何能够在获得更好的显示画面的同时也能实现传统侧入式背光组件的厚度优势，成为目前亟待解决的一个问题。The backlight of the common liquid crystal display module is mainly divided into two types: the light-input type and the direct-type type. The side-input type backlight module has an advantage in thickness, which is advantageous for thinning the product, but the brightness of the side away from the light source will be Lower than the side close to the light source, resulting in uneven brightness distribution; while the direct-lit backlight is more conducive to the partition control of the display, to obtain a better display, but how to achieve a better display while still achieving the traditional The thickness advantage of the side-lit backlight assembly has become an urgent problem to be solved.

发明内容Summary of the invention

为克服现有技术的不足，本发明提供一种背光组件及液晶显示模组，从而使侧入式背光实现多分区控制，降低了厚度以及亮度分布不均匀的问题。In order to overcome the deficiencies of the prior art, the present invention provides a backlight assembly and a liquid crystal display module, thereby enabling the multi-partition control of the side-entry backlight, thereby reducing the problem of uneven thickness and uneven brightness distribution.

本发明提供了一种背光组件，包括设于背板上的光学模块，所述光学模块包括灯条、导光板以及设于导光板下端的反射片，所述光学模块设有至少两组，每组光学模块还包括承载相邻一组光学模块的导光板和反射片的第一底座，灯条设于第一底座上与导光板侧边相对的一面上，在第一底座上设有朝导光板方向斜向延伸的倾斜部，所述倾斜部的上端面为斜面，在斜面上设有用于将相邻一组光学模块的灯条射出的光线反射的反射层，在光学模块上覆盖有光学膜片组，反射层的反射面朝向光学膜片组。The present invention provides a backlight assembly including an optical module disposed on a backplane, the optical module including a light bar, a light guide plate, and a reflective sheet disposed at a lower end of the light guide plate, the optical module being provided with at least two groups, each The optical module further includes a first base that carries a light guide plate and a reflection sheet of the adjacent optical module, and the light bar is disposed on a side of the first base opposite to the side of the light guide plate, and is provided on the first base. An inclined portion extending obliquely in the direction of the light plate, wherein the upper end surface of the inclined portion is a sloped surface, and a reflective layer for reflecting light emitted from the light bar of the adjacent optical module is disposed on the inclined surface, and the optical module is covered with the optical In the diaphragm group, the reflective surface of the reflective layer faces the optical film group.

进一步地，所述倾斜部上设有朝导光板的上端表面水平延伸的延伸部，延伸部形成压合部，压合部压在导光板与灯条相对的一侧上。Further, the inclined portion is provided with an extending portion horizontally extending toward the upper end surface of the light guide plate, and the extending portion forms a pressing portion, and the pressing portion is pressed on a side of the light guiding plate opposite to the light bar.

进一步地，所述倾斜部为从第一底座朝导光板方向高度依次递增。Further, the inclined portion is sequentially increased from the first base toward the height of the light guide plate.

进一步地，所述第一底座为L字形，包括横向部和与横向部垂直设置的竖直部，横向部与竖直部之间形成承载相邻一组光学模块的导光板以及反射片远 离灯条一侧的第一承载部，在竖直部上与灯条相对的一面形成用于固定灯条的第二承载部，倾斜部设于竖直部上。Further, the first base is L-shaped, including a lateral portion and a vertical portion disposed perpendicular to the lateral portion, and a light guide plate carrying the adjacent set of optical modules and the reflective sheet are formed between the lateral portion and the vertical portion The first carrying portion on one side of the light bar forms a second carrying portion for fixing the light bar on a side of the vertical portion opposite to the light bar, and the inclined portion is provided on the vertical portion.

进一步地，每组光学模块的导光板与灯条相对的一侧下端设有第二底座。Further, a second base is disposed at a lower end of the light guide plate of each group of optical modules opposite to the light bar.

进一步地，所述竖直部与相邻一组光学模块的导光板远离灯条的一侧侧边相对的一面上设有凹槽，凹槽与灯条平行，在凹槽内设有填充物。Further, the vertical portion is provided with a groove on a side opposite to a side of the light guide plate of the adjacent optical module from the side of the light bar, the groove is parallel to the light bar, and the filler is provided in the groove .

进一步地，所述光学膜片组包括设于光学模块上方的透光板材以及贴附在透光板材上的至少一层光学膜片。Further, the optical film set includes a light transmissive plate disposed above the optical module and at least one optical film attached to the light transmissive plate.

进一步地，所述透光板材为扩散板。Further, the light transmissive plate is a diffusion plate.

本发明还提供了一种液晶显示面板，包括显示面板，还包括所述的背光组件。The present invention also provides a liquid crystal display panel comprising a display panel, and further comprising the backlight assembly.

本发明与现有技术相比，通过设置至少两组侧入式的光学模块，实现了背光源的分区控制，能过获得更好的显示画面；由于采用侧入式背光结构，使背光组件的厚度降低，在每组光学模块上设置反射层，从而对两组光学模块的拼接处进行亮度补偿，不仅解决了亮度分布不均匀的问题，还解决了拼接处亮度较暗的问题。Compared with the prior art, the present invention realizes the partition control of the backlight by providing at least two sets of side-entry optical modules, and can obtain a better display picture; and the backlight assembly is used because of the side-entry backlight structure. The thickness is reduced, and a reflective layer is disposed on each group of optical modules, thereby performing brightness compensation on the splicing portions of the two optical modules, which not only solves the problem of uneven brightness distribution, but also solves the problem of darkness at the splicing place.

附图说明DRAWINGS

图1是本发明的背光组件的结构示意图。1 is a schematic structural view of a backlight assembly of the present invention.

具体实施方式detailed description

下面结合附图和实施例对本发明作进一步详细说明。The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

如图1所示，本发明的一种背光组件的包括设于背板1上的至少两组光学模块2，每组光学模块2均包括灯条3、导光板4、设于导光板4下端的反射片5、承载相邻一组光学模块2的导光板4和反射片5的第一底座6，灯条3设于第一底座6上与导光板4侧边相对的一面上，在第一底座6上设有朝导光板4方向斜向延伸的倾斜部61，所述倾斜部61的上端面为斜面，在斜面上设有用于将相邻一组光学模块2的灯条3射出的光线反射的反射层62，反射层62由可反射光源的材料制成，在此不做具体限定；本发明采用模块化的光学模块2， 使侧入式背光组件能够具有直下式背光组件的分区控制功能，使采用本发明的液晶显示模组获得与采用直下式背光组件的液晶显示模组相同的显示画面，而且解决了直下式背光组件的厚度问题。As shown in FIG. 1 , a backlight assembly of the present invention includes at least two sets of optical modules 2 disposed on the backplane 1 . Each set of optical modules 2 includes a light bar 3 , a light guide plate 4 , and is disposed at a lower end of the light guide plate 4 . a reflective sheet 5, a first base 6 carrying the light guide plate 4 of the adjacent optical module 2 and the reflective sheet 5, and the light strip 3 is disposed on the opposite side of the first base 6 from the side of the light guide plate 4, The base 6 is provided with an inclined portion 61 extending obliquely in the direction of the light guide plate 4. The upper end surface of the inclined portion 61 is a sloped surface on which the light bar 3 of the adjacent optical module 2 is disposed. The light reflecting reflective layer 62, the reflective layer 62 is made of a material that can reflect the light source, and is not specifically limited herein; the present invention adopts a modular optical module 2, The side-lit backlight assembly can have the partition control function of the direct-type backlight assembly, so that the liquid crystal display module adopting the invention can obtain the same display screen as the liquid crystal display module using the direct-lit backlight assembly, and solves the direct-type backlight assembly. The thickness problem.

在光学模块2上覆盖有光学膜片组7，光学膜片组7包括设于光学模块2上方的透光板材71和贴附在透光板材7上的至少一层光学膜片72，所述透光板材71为扩散板，反射层62的反射面朝向光学膜片组7，光学膜片组7的下端与光学模块2之间设有扩散板71，本发明中所有光学模块2共用相同的一块覆盖在光学模块2上的光学膜片组7，通过反射层62反射相邻一组光学模块2射出的光线至两组光学模块2的拼接处进行亮度补偿，解决了拼接处亮度较暗的问题。The optical module 2 is covered with an optical film set 7 comprising a light transmissive plate 71 disposed above the optical module 2 and at least one optical film 72 attached to the light transmissive plate 7, The light transmissive plate 71 is a diffusing plate, the reflecting surface of the reflecting layer 62 faces the optical film group 7, and the diffusing plate 71 is disposed between the lower end of the optical film group 7 and the optical module 2. In the present invention, all the optical modules 2 share the same An optical film group 7 covering the optical module 2 reflects the light emitted from the adjacent optical module 2 through the reflective layer 62 to the splicing portion of the two optical modules 2 for brightness compensation, thereby solving the darkness of the splicing portion. problem.

具体地，为了解决光学模块2的导光板4的固定问题，在倾斜部61上设有朝导光板4的上端表面水平延伸的延伸部，延伸部形成压合部63，压合部63压在导光板4与灯条3相对的一侧上，该压合部63还能够使导光板4与灯条3获得稳定且精确的位置关系，从而获得良好的光耦关系。Specifically, in order to solve the problem of fixing the light guide plate 4 of the optical module 2, an extension portion horizontally extending toward the upper end surface of the light guide plate 4 is provided on the inclined portion 61, and the extension portion forms a nip portion 63, and the nip portion 63 is pressed against On the side of the light guide plate 4 opposite to the light bar 3, the nip portion 63 can also obtain a stable and precise positional relationship between the light guide plate 4 and the light bar 3, thereby obtaining a good optical coupling relationship.

本发明中，倾斜部61为从第一底座6朝导光板4方向高度依次递增。In the present invention, the inclined portion 61 is sequentially increased in height from the first base 6 toward the light guide plate 4.

具体地，本发明的第一底座6可采用如下结构实现，第一底座6为L字形，包括横向部64和与横向部64垂直设置的竖直部65，横向部64与竖直部65之间形成承载相邻一组光学模块2的导光板4以及反射片5远离灯条3一侧的第一承载部66，在竖直部65上与灯条3相对的一面形成用于固定灯条3的第二承载部67，灯条3粘贴固定在第二承载部67上，倾斜部61设于竖直部65上。Specifically, the first base 6 of the present invention can be realized by a structure in which the first base 6 is L-shaped, including a lateral portion 64 and a vertical portion 65 disposed perpendicularly to the lateral portion 64, and the lateral portion 64 and the vertical portion 65 Forming a light guide plate 4 carrying an adjacent group of optical modules 2 and a first bearing portion 66 on the side of the light strip 3 away from the light strip 3, and forming a light strip on the vertical portion 65 opposite to the light strip 3 The second carrying portion 67 of the third lamp holder 3 is attached and fixed to the second carrying portion 67, and the inclined portion 61 is provided on the vertical portion 65.

在每组光学模块2的导光板3与灯条2相对的一侧下端还可设有第二底座8，从而解决导光板4的平衡问题，但是为了实现更好的模块化问题，可将第一底座6的横向部64延伸至灯条2处，从而免去还需装配第二底座8的问题。A second base 8 may be disposed at a lower end of the light guide plate 3 of each of the optical modules 2 opposite to the light bar 2, thereby solving the balance problem of the light guide plate 4, but in order to achieve a better modularization problem, the first The lateral portion 64 of a base 6 extends to the light bar 2, thereby eliminating the need to assemble the second base 8.

在竖直部65与相邻一组光学模块2的导光板4远离灯条3的一侧侧边相对的一面上设有凹槽68，凹槽68与灯条3平行，在凹槽68内设有填充物69，从而防止导光板4与第一底座6为硬接触的问题。 A groove 68 is provided on a side of the vertical portion 65 opposite to the side of the light guide plate 4 of the adjacent optical module 2 that is away from the light bar 3, and the groove 68 is parallel to the light bar 3, and is in the groove 68. A filler 69 is provided to prevent the light guide plate 4 from being in hard contact with the first base 6.

下面对本发明的装配关系作进一步的描述，为了便于理解，假设本发明的光学模块2设有两组，分别为第一光学模块、第二光学模块；装配时，先将第一光学模块的第一底座6、第二底座8以及第二光学模块的第一底座6放置在背板1上，将第一光学模块的灯条3固定于第二承载部67上，然后依次放入第一光学模块的反射片5以及导光板4，将导光板4靠近灯条3的一侧侧边插入第一光学模块的压合部63中，使导光板4靠近灯条3的一侧侧边与灯条3的光珠相对，通过第一光学模块的压合部63使第一光学模块的反射片5以及导光板4被限位固定，此时第一光学模块的导光板4以及发射片5远离灯条3的一侧放置在第二光学模块中第一底座6的第一承载部66上，依此方式继续装配，从而完成所有光学模块的安装。The assembly relationship of the present invention is further described below. For ease of understanding, it is assumed that the optical module 2 of the present invention is provided with two groups, respectively a first optical module and a second optical module; when assembling, the first optical module is first A base 6, a second base 8, and a first base 6 of the second optical module are placed on the backboard 1, and the light bar 3 of the first optical module is fixed on the second carrying portion 67, and then the first optical is sequentially placed. The reflection sheet 5 of the module and the light guide plate 4 are inserted into the nip portion 63 of the first optical module near the side of the light guide plate 4, so that the light guide plate 4 is adjacent to the side of the light bar 3 and the lamp. The light-emitting strips of the strips 3 are oppositely fixed, and the reflective sheet 5 of the first optical module and the light guide plate 4 are fixed by the nip portion 63 of the first optical module. At this time, the light guide plate 4 and the emission sheet 5 of the first optical module are away from each other. One side of the light bar 3 is placed on the first carrier portion 66 of the first base 6 in the second optical module, and assembly is continued in this manner, thereby completing the mounting of all the optical modules.

当第一光学模块的灯条3出射光纤经过反射片5以及导光板4的折射以及反射，一部分光线传导至第二光学模块中的反射层62上，该反射层62将光线进行反射，从而照亮相邻两组光学模块的拼接处。When the light strip 3 of the first optical module exits the optical fiber and is reflected and reflected by the reflective sheet 5 and the light guide plate 4, a part of the light is transmitted to the reflective layer 62 in the second optical module, and the reflective layer 62 reflects the light, thereby Brighten the joints of two adjacent optical modules.

如图1所示，本发明还公开了一种液晶显示模组，包括显示面板9以及上述的背光组件。As shown in FIG. 1 , the present invention also discloses a liquid crystal display module, including a display panel 9 and the above backlight assembly.

本发明可根据实际情况对导光板4的厚度、导光板4的网点分布、拼接处间隔距离以及光学膜片组距离导光板4的高度进行调整，通过优化设计，其亮度均匀性效果可达88％以上，满足电视机设计所需。According to the actual situation, the thickness of the light guide plate 4, the distribution of the dots of the light guide plate 4, the separation distance of the splicing place, and the height of the optical film group from the light guide plate 4 can be adjusted. By optimizing the design, the brightness uniformity effect can reach 88. More than %, to meet the needs of TV design.

虽然已经参照特定实施例示出并描述了本发明，但是本领域的技术人员将理解：在不脱离由权利要求及其等同物限定的本发明的精神和范围的情况下，可在此进行形式和细节上的各种变化。 While the invention has been shown and described with respect to the specific embodiments the embodiments of the invention Various changes in details.

Claims (18)

一种背光组件，包括设于背板上的光学模块，所述光学模块包括灯条、导光板以及设于导光板下端的反射片，其中：所述光学模块设有至少两组，每组光学模块还包括承载相邻一组光学模块的导光板和反射片的第一底座，灯条设于第一底座上与导光板侧边相对的一面上，在第一底座上设有朝导光板方向斜向延伸的倾斜部，所述倾斜部的上端面为斜面，在斜面上设有用于将相邻一组光学模块的灯条射出的光线反射的反射层，在光学模块上覆盖有光学膜片组，反射层的反射面朝向光学膜片组。A backlight assembly includes an optical module disposed on a backplane, the optical module includes a light bar, a light guide plate, and a reflective sheet disposed at a lower end of the light guide plate, wherein: the optical module is provided with at least two groups of optical The module further includes a first base supporting the light guide plate and the reflective sheet of the adjacent optical module, the light bar is disposed on a side of the first base opposite to the side of the light guide plate, and the first base is disposed on the first light guide plate toward the light guide plate An inclined portion extending obliquely, the upper end surface of the inclined portion is a sloped surface, and a reflective layer for reflecting light emitted from a light bar of an adjacent group of optical modules is disposed on the inclined surface, and the optical module is covered with the optical film The reflective surface of the reflective layer faces the optical film set. 根据权利要求1所述的背光组件，其中：所述倾斜部上设有朝导光板的上端表面水平延伸的延伸部，延伸部形成压合部，压合部压在导光板与灯条相对的一侧上。The backlight assembly according to claim 1, wherein the inclined portion is provided with an extending portion horizontally extending toward an upper end surface of the light guiding plate, and the extending portion forms a nip portion, and the nip portion is pressed against the light guide plate opposite to the light bar. On one side. 根据权利要求1所述的背光组件，其中：所述倾斜部为从第一底座朝导光板方向高度依次递增。The backlight assembly of claim 1, wherein the inclined portion is sequentially increased in height from the first base toward the light guide plate. 根据权利要求2所述的背光组件，其中：所述第一底座为L字形，包括横向部和与横向部垂直设置的竖直部，横向部与竖直部之间形成承载相邻一组光学模块的导光板以及反射片远离灯条一侧的第一承载部，在竖直部上与灯条相对的一面形成用于固定灯条的第二承载部，倾斜部设于竖直部上。The backlight assembly of claim 2, wherein the first base is L-shaped, including a lateral portion and a vertical portion disposed perpendicularly to the lateral portion, and the lateral portion and the vertical portion form a bearing adjacent optical group The light guide plate of the module and the first carrying portion of the reflective sheet away from the light bar side, and a second bearing portion for fixing the light bar on the opposite side of the vertical portion from the light bar, the inclined portion is disposed on the vertical portion. 根据权利要求3所述的背光组件，其中：所述第一底座为L字形，包括横向部和与横向部垂直设置的竖直部，横向部与竖直部之间形成承载相邻一组光学模块的导光板以及反射片远离灯条一侧的第一承载部，在竖直部上与灯条相对的一面形成用于固定灯条的第二承载部，倾斜部设于竖直部上。The backlight assembly of claim 3, wherein the first base is L-shaped, including a lateral portion and a vertical portion disposed perpendicularly to the lateral portion, and the adjacent portion and the vertical portion form a bearing adjacent optical group The light guide plate of the module and the first carrying portion of the reflective sheet away from the light bar side, and a second bearing portion for fixing the light bar on the opposite side of the vertical portion from the light bar, the inclined portion is disposed on the vertical portion. 根据权利要求4所述的背光组件，其中：每组光学模块的导光板与灯条相对的一侧下端设有第二底座。The backlight assembly of claim 4, wherein the light guide plate of each of the optical modules is provided with a second base at a lower end opposite to the light bar. 根据权利要求6所述的背光组件，其中：所述竖直部与相邻一组光学模块的导光板远离灯条的一侧侧边相对的一面上设有凹槽，凹槽与灯条平行，在凹槽内设有填充物。The backlight assembly according to claim 6, wherein: the vertical portion is provided with a groove on a side opposite to a side of the light guide plate of the adjacent optical module from the side of the light bar, and the groove is parallel to the light bar , a filler is provided in the groove. 根据权利要求1所述的背光组件，其中：所述光学膜片组包括设于光 学模块上方的透光板材以及贴附在透光板材上的至少一层光学膜片。The backlight assembly of claim 1, wherein: said optical film set comprises light The light transmissive sheet above the module and at least one optical film attached to the light transmissive sheet. 根据权利要求8所述的背光组件，其中：所述透光板材为扩散板。The backlight assembly of claim 8, wherein the light transmissive sheet material is a diffusion sheet. 一种液晶显示面板，包括显示面板，其中：还包括背光组件，所述背光组件包括设于背板上的光学模块，所述光学模块包括灯条、导光板以及设于导光板下端的反射片，所述光学模块设有至少两组，每组光学模块还包括承载相邻一组光学模块的导光板和反射片的第一底座，灯条设于第一底座上与导光板侧边相对的一面上，在第一底座上设有朝导光板方向斜向延伸的倾斜部，所述倾斜部的上端面为斜面，在斜面上设有用于将相邻一组光学模块的灯条射出的光线反射的反射层，在光学模块上覆盖有光学膜片组，反射层的反射面朝向光学膜片组。A liquid crystal display panel includes a display panel, further comprising a backlight assembly, the backlight assembly comprising an optical module disposed on the back panel, the optical module comprising a light bar, a light guide plate and a reflective sheet disposed at a lower end of the light guide plate The optical module is provided with at least two groups, each set of optical modules further includes a first base that carries a light guide plate and a reflective sheet of an adjacent set of optical modules, and the light bar is disposed on the first base opposite to the side of the light guide plate. On one side, an inclined portion extending obliquely toward the light guide plate is disposed on the first base, and an upper end surface of the inclined portion is a sloped surface, and the light beam for emitting the light bar of the adjacent optical module is disposed on the inclined surface The reflective reflective layer is covered on the optical module with an optical film set, and the reflective surface of the reflective layer faces the optical film set. 根据权利要求10所述的液晶显示面板，其中：所述倾斜部上设有朝导光板的上端表面水平延伸的延伸部，延伸部形成压合部，压合部压在导光板与灯条相对的一侧上。The liquid crystal display panel according to claim 10, wherein the inclined portion is provided with an extending portion horizontally extending toward an upper end surface of the light guiding plate, and the extending portion forms a pressing portion, and the pressing portion is pressed against the light guiding plate and the light bar. On one side. 根据权利要求10所述的液晶显示面板，其中：所述倾斜部为从第一底座朝导光板方向高度依次递增。The liquid crystal display panel according to claim 10, wherein the inclined portion is sequentially increased in height from the first base toward the light guide plate. 根据权利要求11所述的液晶显示面板，其中：所述第一底座为L字形，包括横向部和与横向部垂直设置的竖直部，横向部与竖直部之间形成承载相邻一组光学模块的导光板以及反射片远离灯条一侧的第一承载部，在竖直部上与灯条相对的一面形成用于固定灯条的第二承载部，倾斜部设于竖直部上。The liquid crystal display panel according to claim 11, wherein: said first base is L-shaped, and includes a lateral portion and a vertical portion disposed perpendicularly to the lateral portion, and the adjacent portion formed between the lateral portion and the vertical portion The light guide plate of the optical module and the first carrying portion of the reflective sheet away from the light bar side, the second bearing portion for fixing the light bar is formed on the opposite side of the vertical portion from the light bar, and the inclined portion is disposed on the vertical portion . 根据权利要求12所述的液晶显示面板，其中：所述第一底座为L字形，包括横向部和与横向部垂直设置的竖直部，横向部与竖直部之间形成承载相邻一组光学模块的导光板以及反射片远离灯条一侧的第一承载部，在竖直部上与灯条相对的一面形成用于固定灯条的第二承载部，倾斜部设于竖直部上。The liquid crystal display panel according to claim 12, wherein: said first base is L-shaped, and includes a lateral portion and a vertical portion disposed perpendicularly to the lateral portion, and the adjacent portion formed between the lateral portion and the vertical portion The light guide plate of the optical module and the first carrying portion of the reflective sheet away from the light bar side, the second bearing portion for fixing the light bar is formed on the opposite side of the vertical portion from the light bar, and the inclined portion is disposed on the vertical portion . 根据权利要求13所述的液晶显示面板，其中：每组光学模块的导光板与灯条相对的一侧下端设有第二底座。The liquid crystal display panel according to claim 13, wherein the light guide plate of each group of optical modules is provided with a second base at a lower end opposite to the light bar. 根据权利要求15所述的液晶显示面板，其中：所述竖直部与相邻一组光学模块的导光板远离灯条的一侧侧边相对的一面上设有凹槽，凹槽与灯条 平行，在凹槽内设有填充物。The liquid crystal display panel according to claim 15, wherein: the vertical portion is provided with a groove, a groove and a light bar on a side opposite to a side of the light guide plate of the adjacent optical module from the side of the light bar. Parallel, a filler is provided in the groove. 根据权利要求10所述的液晶显示面板，其中：所述光学膜片组包括设于光学模块上方的透光板材以及贴附在透光板材上的至少一层光学膜片。The liquid crystal display panel according to claim 10, wherein the optical film set comprises a light transmissive plate disposed above the optical module and at least one optical film attached to the light transmissive plate. 根据权利要求17所述的液晶显示面板，其中：所述透光板材为扩散板。 The liquid crystal display panel according to claim 17, wherein the light transmissive plate material is a diffusion plate.
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