[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

WO2016134562A1 - 液晶显示器及背光模组 - Google Patents

液晶显示器及背光模组 Download PDF

Info

Publication number
WO2016134562A1
WO2016134562A1 PCT/CN2015/077413 CN2015077413W WO2016134562A1 WO 2016134562 A1 WO2016134562 A1 WO 2016134562A1 CN 2015077413 W CN2015077413 W CN 2015077413W WO 2016134562 A1 WO2016134562 A1 WO 2016134562A1
Authority
WO
WIPO (PCT)
Prior art keywords
liquid crystal
backlight module
crystal display
reflective
bottom wall
Prior art date
Application number
PCT/CN2015/077413
Other languages
English (en)
French (fr)
Inventor
樊勇
Original Assignee
深圳市华星光电技术有限公司
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 深圳市华星光电技术有限公司 filed Critical 深圳市华星光电技术有限公司
Publication of WO2016134562A1 publication Critical patent/WO2016134562A1/zh

Links

Images

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
    • F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
    • F21V13/02—Combinations of only two kinds of elements
    • 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
    • F21V7/22—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
    • 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

Definitions

  • the invention belongs to the technical field of liquid crystal displays, and in particular relates to a liquid crystal display and a backlight module applied in the liquid crystal display.
  • the light source of the backlight module is generally selected as a cold cathode fluorescent lamp (CCFL) or a light emitting diode (LED). LEDs have become the mainstream of the current market because of their small size, fast response time, long life, non-breaking, high color gamut and many types of packaging.
  • CCFL cold cathode fluorescent lamp
  • LEDs have become the mainstream of the current market because of their small size, fast response time, long life, non-breaking, high color gamut and many types of packaging.
  • Existing backlight modules using LEDs are mainly classified into two types: a lower type and a side type. Due to the thin thickness of the side-mounted backlight module, it has been widely used in the field of liquid crystal display technology, especially in a thin and light liquid crystal display.
  • the existing side-mounted backlight module is mainly composed of a light source, a light guide plate and an optical film. The manufacture of the light guide plate is the most complicated. Since the shape of the light guide plate is generally selected as a wedge shape, the thickness variation requires strict control, which obviously Increasing the manufacturing difficulty and increasing the production cost, thereby indirectly increasing the production cost of the backlight module.
  • a first object of the present invention is to provide a new concept of a backlight module capable of saving production costs.
  • a second object of the present invention is to provide a production cost saving LCD Monitor.
  • a backlight module includes: a backing plate assembly including a bottom wall and a side wall, and a reflecting cavity defined by the bottom wall and the side wall having an opening; a light source in the reflective cavity; a transparent sheet covering the opening, and an optical dot on the inner surface of the transparent sheet capable of reflecting light of the light source.
  • the optical dots are formed from a plurality of spaced apart reflective projections.
  • a plurality of reflective bumps are distributed in a matrix on the inner surface of the transparent sheet.
  • the reflective bumps are made of polytetrafluoroethylene suspension resin, magnesium oxide, calcium carbonate or barium sulfate.
  • the bottom wall and side walls of the backing plate assembly are made of a resin material, and a reflective film is provided on the inner surface of the bottom wall of the backing plate assembly and the inner surface of the side wall.
  • the bottom and side walls of the backing plate assembly are reflective sheets.
  • the bottom wall of the backing plate assembly has a rectangular shape, and the side walls thereof include four rectangular plates respectively connected to the respective edges of the rectangle, and the four rectangular plates are connected end to end to form a rectangular reflecting cavity.
  • the transparent sheet is made of polycarbonate, polyester resin, polymethyl methacrylate or quartz glass.
  • the backlight module is used in a liquid crystal display, and the outer surface of the transparent sheet is attached to the back surface of the liquid crystal panel of the liquid crystal panel, and the size of the optical dot is smaller than the size of the sub-pixel of the liquid crystal panel.
  • a liquid crystal display comprising a backlight module according to the first aspect of the present invention.
  • the backlight module provided by the first aspect of the present invention replaces the light guide plate by the reflective cavity and the transparent plate with the optical dot, and can also convert the line light source emitted by the light source into a surface light source, wherein the transparent film and the reflective cavity structure are both It is very easy to manufacture, especially the transparent sheet with uniform thickness is easier to manufacture, so the backlight module has a lower production cost than the existing side-mounted backlight module. Similarly, since the liquid crystal display of the second aspect of the present invention uses the backlight module provided by the first aspect of the present invention, it also has a lower production cost.
  • the backlight module according to the present invention has a simple structure, low cost, high production efficiency, and is convenient for implementation and popularization.
  • Figure 1 schematically shows a liquid crystal display according to the present invention
  • FIG. 2 is a cross-sectional view of a backlight module in accordance with the present invention.
  • the liquid crystal display 100 includes a liquid crystal panel 20 having a front surface (ie, an end surface facing the human face in use) and a back surface (ie, an end surface facing away from the human face), and a backlight module coupled to the back surface of the liquid crystal panel 20 10. Since the liquid crystal display 100 can be a rectangular display, a circular display, or other shape display, both the liquid crystal panel 20 and the backlight module 10 can be changed as the shape of the display changes.
  • the liquid crystal panel 20 may be a liquid crystal panel of a thin film transistor liquid crystal display (abbreviated as TFT LCD), and the liquid crystal panel includes a polarizing film, a color filter substrate, a liquid crystal layer, an array substrate, and a polarizer stacked in sequence. And drive circuits and printed circuit boards.
  • TFT LCD thin film transistor liquid crystal display
  • the liquid crystal panel of the thin film transistor liquid crystal display is well known to those skilled in the art and will not be described in detail herein.
  • backlight module 10 includes a backplane assembly 2.
  • the backing plate assembly 2 has a bottom wall 21 and side walls 22, and a reflective cavity 23 defined by the bottom wall 21 and the side walls 22.
  • the reflection chamber 23 has an opening. The opening faces the back surface of the liquid crystal panel 20.
  • the backlight module 10 and the liquid crystal panel 20 are also selected in a rectangular configuration. That is, the bottom wall 21 of the backboard assembly 2 is rectangular, and the side wall 22 includes four rectangular plates that are respectively connected to the respective edges of the rectangular bottom wall 21. The four rectangular plates are sequentially connected to form a rectangular frame, and the reflecting cavity 23 is a cavity formed in the rectangular frame.
  • the backplane assembly 2 of the backlight module 10 can also be selected in other shapes.
  • the backlight module 10 further includes a light source 3.
  • the light source 3 can be disposed on the inner surface of the side wall 22 (i.e., the surface within the reflective cavity 23), which is preferably detachably coupled to the inner surface.
  • the light source 3 can be selected as a cold cathode fluorescent tube or an LED, but is preferably an LED. LEDs have more beneficial effects because of their small size, fast response time, long life, non-breaking, high color gamut and many types of packages.
  • the backlight module 10 further includes a transparent sheet 5 covering the opening and having a uniform thickness.
  • the transparent sheet 5 can be overlapped on the end of the side wall 22 near the opening of the reflective cavity 23, so that the backlight module 10 has a narrower frame.
  • the transparent sheet 5 may be made of polycarbonate, polyester resin or polymethyl methacrylate, or it may be made of quartz glass. In the actual production process, the material having the best light transmittance, that is, polymethyl methacrylate, is usually selected to produce the transparent sheet 5.
  • the outer surface of the transparent sheet 5 may be directly bonded to the back surface of the liquid crystal panel 20, or may be joined to the back surface of the liquid crystal panel 20 after the corresponding optical film is added.
  • the transparent film 5 and the liquid crystal panel 20 are sequentially provided with a diffusion film, a brightness enhancement film, and a diffusion film, and then joined to the back surface of the liquid crystal panel 20, the brightness of the liquid crystal panel 20 can be made more uniform.
  • the diffusion film, the brightness enhancement film and the diffusion film are all well known to those skilled in the art and will not be described in detail herein.
  • An optical dot 55 is provided on the inner surface of the transparent sheet 5 (i.e., the surface in the reflective cavity 23).
  • the light of the light source is irradiated to the cavity wall of the reflective cavity 23, the light can be reflected onto the transparent sheet 5, and a part of the light passes through the gap between the optical dots 55 and enters the liquid crystal panel 20 through the transparent sheet 5, and Another portion of the light is reflected by the optical dot 55 and then re-reflected into the reflective cavity 23, and then reciprocally reflected between the two, and finally passes through the gap between the optical dots 55.
  • the backlight module 10 can replace the light guide plate of the existing backlight module through the reflective cavity 23 and the transparent sheet 5 having the optical dot 55, and can also convert the line light source emitted by the light source into a surface light source. Because the transparent sheet 5 and the reflective cavity 23 have a simple structure and are easy to manufacture, especially the transparent sheet having a uniform thickness is easier to manufacture, the backlight module 10 has a light guide plate compared to the existing side-mounted backlight module. The backlight module has a lower production cost. In addition, the backlight module 10 of the present invention has a lighter mass and a thinner thickness than the prior art, whereby the liquid crystal display 10 can be promoted toward a lighter and thinner direction.
  • the optical dot 55 is formed by a plurality of spaced apart reflective projections.
  • the cross section of the reflective protrusions can be circular, rectangular, polygonal, and other shapes.
  • the reflective bumps are used to cause the light to reflect so that all of the light is transmitted through the gap between the reflective bumps.
  • a plurality of reflective bumps are distributed in a matrix on the inner surface of the transparent sheet 5.
  • the reflective protrusions distributed in the form of a matrix can uniformly emit light on the outer surface of the transparent sheet 5 to ensure uniform brightness of the liquid crystal display 100 and also have good reflection ability, thereby enhancing the light-emitting intensity of the outer surface of the transparent sheet 5, that is, The brightness of the liquid crystal display 100 is increased.
  • the reflective bumps may be made of a material having a reflective function, preferably made of a mixture of polytetrafluoroethylene suspension resin, magnesium oxide, calcium carbonate, barium sulfate or any mixture of the four.
  • the backing plate assembly 2 is directly made of a reflective sheet, i.e., the bottom wall 21 and the side walls 22 are each formed of a reflective sheet to form a reflective cavity 23 having a reflective function therein.
  • the backing plate assembly 2 is made of a hard material such as a resin, and the backing plate assembly 2 made of a resin material does not have a good reflective capability, and therefore needs to be inside the bottom wall 21 thereof.
  • a reflective film is provided on the inner surface of the surface and the side wall 22, or a layer of reflective paint is applied.
  • the reflective and reflective sheets and reflective coatings are well known to those skilled in the art and will not be described in detail herein.
  • the size of the optical dots 22 is smaller than the size of the sub-pixels of the liquid crystal panel 20 to prevent the liquid crystal display 100 from displaying a dead pixel, that is, a bright spot or a dark dot, when displaying a picture.
  • the backlight module 10 replaces the light guide plate through the reflective cavity 23 and the transparent sheet 5 having the optical halftone 55, and can also convert the line light source emitted from the light source 3 into a surface light source, wherein the transparent sheet 5 and the reflective cavity
  • the structure of the film 23 is simple and easy to manufacture, and in particular, the transparent sheet 5 having a uniform thickness is more easily manufactured. Therefore, the backlight module 10 has a lower production cost than the existing side-mounted backlight module.
  • the backlight module 10 of the present invention has a lighter mass and a thinner thickness than the prior art, whereby the liquid crystal display 100 can be pushed toward a lighter and thinner direction.

Landscapes

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

Abstract

一种液晶显示器（100）及背光模组（10），其中背光模组（10）包括：背板组件（2），其包括底壁（21）和侧壁（22），以及由所述底壁（21）和侧壁（22）所限定的具有一个开口的反射腔（23）；设在所述反射腔（23）内的发光源（3）；覆盖所述开口的透明片（5），在透明片（5）的内表面上设有能够反射发光源（3）的光的光学网点（55）。上述背光模组（10）使用了一种全新概念，能够节省生产成本。

Description

液晶显示器及背光模组
相关申请的交叉引用
本申请要求享有于2015年02月26日提交的名称为“液晶显示器及背光模组”的中国专利申请CN201510088815.4的优先权，该申请的全部内容通过引用并入本文中。
技术领域
本发明属于液晶显示器技术领域，具体涉及一种液晶显示器及一种应用在液晶显示内的背光模组。
背景技术
在液晶显示器技术领域中，液晶面板本身并不能发光，为了使其能够进行正常显示，背光模组是不可或缺的。背光模组的光源通常选为冷阴极荧光灯管(Cold cathode fluorescent lamp，CCFL)或发光二极管(Light emitting diode，LED)。由于LED具有体积小、响应时间快、寿命长、不易碎、色域高、封装种类多等优点，使得使用了LED的背光模组已成为现在市场的主流。
现有的使用了LED的背光模组主要分为下置式和侧置式两种。由于侧置式背光模组的厚度薄，使得其在液晶显示器技术领域得到了广泛的应用，尤其是在轻薄的液晶显示器内得到了非常广泛的应用。现有的侧置式背光模组主要由光源、导光板和光学膜片组成，其中导光板的制造最为复杂，由于导光板的形状通常选为楔形，而其厚度变化需要严格的控制，这明显会增加制造难度，增加生产成本，从而间接性地增加背光模组的生产成本。
因此，需要一种能够节省生产成本的背光模组。
发明内容
为了解决上述问题，本发明的第一个目的是提供一种全新概念的能够节省生产成本的背光模组。另外，本发明的第二个目的是提供一种能够节省生产成本的 液晶显示器。
根据本发明的第一方面，提供了一种背光模组，包括：背板组件，其包括底壁和侧壁，以及由所述底壁和侧壁所限定的具有一个开口的反射腔；设在所述反射腔内的发光源；覆盖所述开口的透明片，在透明片的内表面上设有能够反射发光源的光的光学网点。
在一个实施例中，光学网点由多个间隔开分布的反射凸起形成。
在一个实施例中，多个反射凸起以矩阵形式分布在透明片的内表面上。
在一个实施例中，反射凸起由聚四氟乙烯悬浮树脂、氧化镁、碳酸钙或硫酸钡制成。
在一个实施例中，背板组件的底壁和侧壁由树脂材料制成，在背板组件的底壁的内表面和侧壁的内表面上均设有反射膜。
在一个实施例中，背板组件的底壁和侧壁均为反射片。
在一个实施例中，背板组件的底壁呈矩形，而其侧壁包括分别与矩形的各边缘相连的四块矩形板，四块矩形板首尾依次连接，形成矩形的反射腔。
在一个实施例中，透明片由聚碳酸酯、涤纶树脂、聚甲基丙烯酸甲酯或石英玻璃制成。
在一个实施例中，背光模组用在液晶显示器中，并通过透明片的外表面与液晶面板的液晶面板的背面相贴合，光学网点的大小小于液晶面板的亚像素的大小。
根据本发明的第二方面，提供了一种包括根据本发明的第一方面的背光模组的液晶显示器。
根据本发明的第一方面提供的背光模组通过反射腔和具有光学网点的透明片来替代导光板，同样可以把发光源发出的线光源转换成面光源，其中由于透明片和反射腔结构都是非常容易制造，尤其是厚度均匀的透明片的制造更加容易，因此该背光模组相比于现有的侧置式背光模组具有更加低廉的生产成本。同理，由于本发明的第二方面的液晶显示器使用了本发明的第一方面所提供的背光模组，因此其也具有更加低廉的生产成本。
另外，根据本发明的背光模组的结构简单，成本低廉，生产效率高，便于实施推广应用。
附图说明
在下文中将基于实施例并参考附图来对本发明进行更详细的描述。其中：
图1示意性地显示了根据本发明的液晶显示器；以及
图2是根据本发明的背光模组的剖视图。
在附图中相同的部件使用相同的附图标记。附图并未按照实际的比例绘制。
具体实施方式
下面将结合附图对本发明作进一步说明。
图1显示了根据本发明的第二方面所提供的液晶显示器100，同时也显示了根据本发明的第一方面所提供的背光模组10，其中背光模组10设置在该液晶显示器100内。具体地说，液晶显示器100包括具有前面(即使用时朝向人面部的端面)和背面(即使用时背向人面部的端面)的液晶面板20，以及与该液晶面板20的背面相接合的背光模组10。由于液晶显示器100可以是矩形显示器、圆形显示器或其他形状显示器，因此液晶面板20和背光模组10均可随显示器的形状变化而进行变化。
在该实施例中，液晶面板20可选为薄膜晶体管液晶显示器(英文缩写为TFT LCD)的液晶面板，该液晶面板包括依次堆叠的偏光膜、彩膜基板、液晶层、阵列基板和偏光片，以及驱动电路和印刷电路板。其中，所述的薄膜晶体管液晶显示器的液晶面板属于本领域技术人员熟知的，在此不作详细说明。
根据本发明，背光模组10包括背板组件2。背板组件2具有底壁21和侧壁22，以及由底壁21和侧壁22所限定的反射腔23。反射腔23具有一开口。开口朝向液晶面板20的背面。在本实施例中，由于液晶显示器100是矩形的显示器，因此背光模组10和液晶面板20也选成矩形的结构。也就是说，背板组件2的底壁21为矩形，侧壁22包括与矩形底壁21的各边缘分别相连的四块矩形板。四块矩形板依次连接，形成矩形框，反射腔23便是形成在该矩形框内的腔体。当然，该背光模组10的背板组件2也可选为其他形状。
背光模组10还包括发光源3。发光源3可布置在侧壁22的内表面(即处于反射腔23内的表面)上，其与该内表面优选采用可拆卸连接。其中，发光源3既可选择成冷阴极荧光灯管，也可选择成LED，但优选为LED。由于LED具有体积小、响应时间快、寿命长、不易碎、色域高、封装种类多等优点，因此使用LED的背光模组具有更多的有益效果。
根据本发明，背光模组10还包括覆盖开口的且厚度均匀的透明片5。透明片5可搭接在侧壁22上靠近反射腔23的开口的端部上，以使背光模组10具有更加狭窄的边框。透明片5可由聚碳酸酯、涤纶树脂或聚甲基丙烯酸甲酯制成，此外其也可由石英玻璃制成。在实际生产过程中，通常选择透光率最好的材料、即聚甲基丙烯酸甲酯来制造透明片5。在液晶显示器100的组装过程中，透明片5的外表面可直接与液晶面板20的背面相接合，也可以在添加相应光学膜片后再与液晶面板20的背面相接合。例如，在透明片5与液晶面板20依次添加扩散膜、增亮膜和扩散膜后再与液晶面板20的背面相接合，由此可以促使液晶面板20的亮度更加均匀。其中，所述的扩散膜、增亮膜和扩散膜均属于本领域技术人员熟知的内容，在此不作详细描述。
在透明片5的内表面(即处于反射腔23内的表面)设有光学网点55。当光源的光照射到反射腔23的腔壁时，可把光线反射到透明片5上，其中一部分光线从光学网点55之间的缝隙穿出并通过透明片5进入到液晶面板20内，而另一部分光线经光学网点55反射后再次进入反射腔23内反射，然后在两者之间进行往复反射，最终都从光学网点55之间的缝隙穿出。因此，根据本发明的的背光模组10可通过反射腔23和具有光学网点55的透明片5来替代现有背光模组的导光板，同样可以把发光源发出的线光源转换成面光源，其中由于透明片5和反射腔23的结构简单，容易制造，尤其是厚度均匀的透明片的制造更加容易，因此该背光模组10相比于现有的侧置式背光模组(即具有导光板的背光模组)具有更加低廉的生产成本。除此之外，与是现有技术相比，本发明的背光模组10还具有更轻的质量和更薄的厚度，由此可以促进液晶显示器10朝向更轻更薄的方向发展。
光学网点55是由多个间隔开分布的反射凸起形成。反射凸起的横截面可为圆形、矩形、多边形以及其他形状。反射凸起用于促使光线进行反射，以便使所有光线都从反射凸起间的缝隙处透过。在一个优选的实施例中，多个反射凸起以矩阵形式分布在透明片5的内表面。矩阵形式分布的反射凸起能够实现透明片5的外表面均匀出光，以确保液晶显示器100的亮度能够均匀，并且也具有较好的反射能力，从而强化透明片5的外表面的出光强度，即提高液晶显示器100的亮度。其中，反射凸起可由具有反射功能的材料制成，优选由聚四氟乙烯悬浮树脂、氧化镁、碳酸钙、硫酸钡或四者的任意混合的混合物制成。
在一个实施例中，背板组件2直接由反射片制成，即底壁21和侧壁22均有反射片制成，以便在其内部形成具有反射功能的反射腔23。而在另一个实施例中，背板组件2是由硬质材料、例如树脂制成，由于树脂材料制成的背板组件2不具有较好的反射能力，因此需要在其底壁21的内表面和侧壁22的内表面上均设有反射膜，或者涂布一层反光涂料。所述的反射膜和反射片以及反光涂料是本领域技术人员熟知的，在此不作详细描述。
在一个优选的实施例中，光学网点22的大小小于液晶面板20的亚像素的大小，以避免液晶显示器100在显示画面时出现坏点，即亮点或暗点。
根据本发明的的背光模组10通过反射腔23和具有光学网点55的透明片5来替代导光板，同样可以把发光源3发出的线光源转换成面光源，其中由于透明片5和反射腔23结构简单，容易制造，尤其是厚度均匀的透明片5的制造更加容易，因此该背光模组10相比于现有的侧置式背光模组具有更加低廉的生产成本。除此之外，与是现有技术相比，本发明的背光模组10还具有更轻的质量和更薄的厚度，由此可以推动液晶显示器100朝向更轻更薄的方向发展。
虽然已经参考优选实施例对本发明进行了描述，但在不脱离本发明的范围的情况下，可以对其进行各种改进并且可以用等效物替换其中的部件。尤其是，只要不存在结构冲突，各个实施例中所提到的各项技术特征均可以任意方式组合起来。本发明并不局限于文中公开的特定实施例，而是包括落入权利要求的范围内的所有技术方案。

Claims (18)

  1. 一种背光模组，包括：
    背板组件，其包括底壁和侧壁，以及由所述底壁和侧壁所限定的具有一个开口的反射腔；
    设在所述反射腔内的发光源；
    用于覆盖所述开口的透明片，在所述透明片的内表面上设有能够反射所述发光源的光的光学网点。
  2. 根据权利要求1所述的背光模组，其中，所述光学网点由多个间隔开分布的反射凸起形成。
  3. 根据权利要求2所述的背光模组，其中，多个所述反射凸起以矩阵形式分布在所述透明片的内表面上。
  4. 根据权利要求3所述的背光模组，其中，所述反射凸起由聚四氟乙烯悬浮树脂、氧化镁、碳酸钙或硫酸钡制成。
  5. 根据权利要求1所述的背光模组，其中，所述背板组件的底壁和侧壁由树脂材料制成，并在所述底壁的内表面和所述侧壁的内表面上均设有反射膜。
  6. 根据权利要求1所述的背光模组，其中，所述背板组件的底壁和侧壁均为反射片。
  7. 根据权利要求1所述的背光模组，其中，所述底壁呈矩形，所述侧壁包括分别与所述矩形的各边缘相连的四块矩形板，四块所述矩形板首尾依次连接。
  8. 根据权利要求1所述的背光模组，其中，所述透明片由聚碳酸酯、涤纶树脂、聚甲基丙烯酸甲酯或石英玻璃制成。
  9. 根据权利要求1所述的背光模组，其中，所述背光模组用在液晶显示器内，并通过所述透明片的外表面与所述液晶面板的液晶面板的背面相贴合，所述光学网点的大小小于所述液晶面板的亚像素的大小。
  10. 一种液晶显示器，所述液晶显示器包括背光模组，所述背光模组包括：
    背板组件，其包括底壁和侧壁，以及由所述底壁和侧壁所限定的具有一个开口的反射腔；
    设在所述反射腔内的发光源；
    用于覆盖所述开口的透明片，在所述透明片的内表面上设有能够反射所述发 光源的光的光学网点。
  11. 根据权利要求10所述的液晶显示器，其中，所述光学网点由多个间隔开分布的反射凸起形成。
  12. 根据权利要求11所述的液晶显示器，其中，多个所述反射凸起以矩阵形式分布在所述透明片的内表面上。
  13. 根据权利要求12所述的液晶显示器，其中，所述反射凸起由聚四氟乙烯悬浮树脂、氧化镁、碳酸钙或硫酸钡制成。
  14. 根据权利要求10所述的液晶显示器，其中，所述背板组件的底壁和侧壁由树脂材料制成，并在所述底壁的内表面和所述侧壁的内表面上均设有反射膜。
  15. 根据权利要求10所述的液晶显示器，其中，所述背板组件的底壁和侧壁均为反射片。
  16. 根据权利要求10所述的液晶显示器，其中，所述底壁呈矩形，所述侧壁包括分别与所述矩形的各边缘相连的四块矩形板，四块所述矩形板首尾依次连接。
  17. 根据权利要求10所述的液晶显示器，其中，所述透明片由聚碳酸酯、涤纶树脂、聚甲基丙烯酸甲酯或石英玻璃制成。
  18. 根据权利要求10所述的液晶显示器，其中，所述光学网点的大小小于所述液晶面板的亚像素的大小。
PCT/CN2015/077413 2015-02-26 2015-04-24 液晶显示器及背光模组 WO2016134562A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201510088815.4A CN104613385A (zh) 2015-02-26 2015-02-26 液晶显示器及背光模组
CN201510088815.4 2015-02-26

Publications (1)

Publication Number Publication Date
WO2016134562A1 true WO2016134562A1 (zh) 2016-09-01

Family

ID=53147968

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2015/077413 WO2016134562A1 (zh) 2015-02-26 2015-04-24 液晶显示器及背光模组

Country Status (2)

Country Link
CN (1) CN104613385A (zh)
WO (1) WO2016134562A1 (zh)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108044705A (zh) * 2017-11-30 2018-05-18 江西合力泰科技有限公司 一种高均匀性全面屏导光板及其制备方法
CN110018594B (zh) * 2019-04-29 2020-09-01 惠州市华星光电技术有限公司 背光模组及显示模组

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202469764U (zh) * 2012-03-16 2012-10-03 京东方科技集团股份有限公司 侧光式背光源
KR20120122642A (ko) * 2011-04-29 2012-11-07 액츠 주식회사 반사 광원형 측광식 백라이트 유닛의 도광 시스템
CN102943980A (zh) * 2012-11-15 2013-02-27 京东方科技集团股份有限公司 背光模组及液晶显示装置
CN103133941A (zh) * 2011-12-01 2013-06-05 扬升照明股份有限公司 背光模组
CN103388776A (zh) * 2012-05-11 2013-11-13 扬升照明股份有限公司 背光模块

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5816677A (en) * 1905-03-01 1998-10-06 Canon Kabushiki Kaisha Backlight device for display apparatus
CN1932607B (zh) * 2005-09-13 2011-10-12 京东方科技集团股份有限公司 一种带有非平面反射镜阵列的led背光模块
CN100587567C (zh) * 2006-03-30 2010-02-03 京东方科技集团股份有限公司 一种led背光模块
CN101576228A (zh) * 2008-05-07 2009-11-11 群康科技(深圳)有限公司 发光元件、背光模组与液晶显示装置
TWM385715U (en) * 2009-12-14 2010-08-01 Chunghwa Picture Tubes Ltd Backlight module
CN102096233A (zh) * 2009-12-14 2011-06-15 康佳集团股份有限公司 用于液晶显示的导光板、背光模组及液晶显示装置
CN201772349U (zh) * 2010-01-20 2011-03-23 深圳华映显示科技有限公司 背光模组
CN202274376U (zh) * 2011-10-31 2012-06-13 深圳Tcl新技术有限公司 液晶显示背光模组及液晶显示器
CN202629814U (zh) * 2012-05-31 2012-12-26 京东方科技集团股份有限公司 侧入式背光模组
CN202660409U (zh) * 2012-07-24 2013-01-09 京东方科技集团股份有限公司 直下式背光模组及显示装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20120122642A (ko) * 2011-04-29 2012-11-07 액츠 주식회사 반사 광원형 측광식 백라이트 유닛의 도광 시스템
CN103133941A (zh) * 2011-12-01 2013-06-05 扬升照明股份有限公司 背光模组
CN202469764U (zh) * 2012-03-16 2012-10-03 京东方科技集团股份有限公司 侧光式背光源
CN103388776A (zh) * 2012-05-11 2013-11-13 扬升照明股份有限公司 背光模块
CN102943980A (zh) * 2012-11-15 2013-02-27 京东方科技集团股份有限公司 背光模组及液晶显示装置

Also Published As

Publication number Publication date
CN104613385A (zh) 2015-05-13

Similar Documents

Publication Publication Date Title
KR101134301B1 (ko) 엘이디 백라이트어셈블리 및 이를 이용한 액정표시장치모듈
US9366398B2 (en) Backlight unit and liquid crystal display apparatus having the same
US7325962B2 (en) Direct backlight module
WO2016026181A1 (zh) 彩色液晶显示模组结构及其背光模组
JP2016143666A (ja) 表示装置
US10241255B2 (en) Backlight module and liquid crystal display
JP2010135204A (ja) 面状光源及び液晶表示装置
US7178951B1 (en) Direct backlight module
TW201300900A (zh) 背光模組及使用該背光模組的顯示裝置
KR102090457B1 (ko) 액정표시장치
WO2024022125A1 (zh) 背光模组、显示装置及拼接显示装置
US11320574B2 (en) Light guide plate, backlight module and display device
WO2017185446A1 (zh) 背光模组及双面液晶显示装置
JP2010108601A (ja) 面状光源及び液晶表示装置
WO2019127755A1 (zh) Led光源以及侧入式背光模组、液晶显示装置
JP2006012763A (ja) 光学機材、これを有するバックライトアセンブリー及びこれを有する表示装置
WO2019205476A1 (zh) 光源模组、背光模组及液晶显示装置
WO2016134562A1 (zh) 液晶显示器及背光模组
WO2017008326A1 (zh) 双面显示器
KR20110039807A (ko) 액정디스플레이용 복합시트 및 이를 이용한 백라이트 유닛
US9418601B2 (en) Display device with luminance boosting unit
KR101413140B1 (ko) 불균일한 로컬 마이크로렌즈 어레이 패턴을 갖는 광확산판 및 이를 포함하는 액정표시장치
KR102093629B1 (ko) 액정표시장치
KR102002458B1 (ko) 액정표시장치
KR20060058596A (ko) 백라이트 유닛 어셈블리

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 15883000

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 15883000

Country of ref document: EP

Kind code of ref document: A1