CN202868487U - Backlight module and display device - Google Patents
Backlight module and display deviceDownload PDFInfo
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- CN202868487U CN202868487UCN2012205698887UCN201220569888UCN202868487UCN 202868487 UCN202868487 UCN 202868487UCN 2012205698887 UCN2012205698887 UCN 2012205698887UCN 201220569888 UCN201220569888 UCN 201220569888UCN 202868487 UCN202868487 UCN 202868487U
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Abstract
Translated fromChinese
Description
Translated fromChinese技术领域technical field
本实用新型涉及显示技术领域，特别是涉及一种背光模组及显示装置。The utility model relates to the field of display technology, in particular to a backlight module and a display device.
背景技术Background technique
背光模组为液晶显示器的重要组件之一，由于液晶本身不发光，背光模组的功能就是供应充足的亮度与分布均匀的光源，使液晶显示器能正常显示影像。目前，液晶显示器的显示技术已经趋于成熟，尤其在背光模组的设计方面也有了很大的发展。背光模组除了应用在液晶显示器、液晶电视机等液晶显示装置之外，还可以为数码相框、电子纸、手机等显示装置提供光源。The backlight module is one of the important components of the liquid crystal display. Since the liquid crystal itself does not emit light, the function of the backlight module is to supply sufficient brightness and evenly distributed light source, so that the liquid crystal display can display images normally. At present, the display technology of liquid crystal display has become mature, especially in the design of the backlight module. In addition to being used in liquid crystal display devices such as liquid crystal displays and liquid crystal televisions, backlight modules can also provide light sources for display devices such as digital photo frames, electronic paper, and mobile phones.
背光模组依据光源的位置不同分为侧光式背光模组和直下式背光模组。传统的背光模组以侧入光式为主。侧光式背光模组主要包括光源、导光板、导热板以及背板。导光板主要功能是藉由光散射原理将入射的点光源转换成面光源。光源位于导光板的一侧面或两相对侧面，光源所发出的光向导光板另一端传导，然后由导光板正面射出。如图1所示，一种现有技术的背光模组，包括导光板1’、位于导光板1’的一侧面的光源2’以及位于导光板1’背面一侧的导热板3’。导热板3’的背面一侧设置有背板90’。现在液晶电视等利用背光模组的显示装置的发展趋势是边框越来越窄，而上述结构的背光模组使上述趋势的发展受到制约；同时，侧发光式的光源2’（通常为LED灯）固定的强度不够；光源2’背面的散热片无法和导热板3’直接接触，而是和空气接触，由此散热性较差。The backlight module is divided into an edge-type backlight module and a direct-type backlight module according to the position of the light source. Traditional backlight modules are mainly side-illuminated. The edge-lit backlight module mainly includes a light source, a light guide plate, a heat conduction plate and a back plate. The main function of the light guide plate is to convert the incident point light source into a surface light source by the principle of light scattering. The light source is located on one side or two opposite sides of the light guide plate, and the light emitted by the light source is transmitted to the other end of the light guide plate, and then emitted from the front of the light guide plate. As shown in Figure 1, a backlight module of the prior art includes a light guide plate 1', a light source 2' positioned on one side of the light guide plate 1', and a heat conducting plate 3' positioned on the back side of the light guide plate 1'. The back side of the heat conducting plate 3' is provided with a back plate 90'. The development trend of display devices using backlight modules such as LCD TVs is that the frame is getting narrower and narrower, and the backlight module with the above structure restricts the development of the above trend; at the same time, the side-emitting light source 2' (usually an LED lamp ) The fixing strength is not enough; the heat sink on the back of the light source 2' cannot directly contact with the heat conducting plate 3', but is in contact with air, so the heat dissipation is poor.
实用新型内容Utility model content
本实用新型的目的是提供一种光源散热性较好、边框较窄的背光模组及显示装置。The purpose of the utility model is to provide a backlight module and a display device with better light source heat dissipation and narrow frame.
本实用新型的背光模组，包括导光板、光源以及导热板，所述导热板和光源均设置于所述导光板的背面一侧，所述光源位于所述导光板和所述导热板之间且贴附于所述导热板上。The backlight module of the present utility model includes a light guide plate, a light source and a heat conduction plate, the heat conduction plate and the light source are arranged on the back side of the light guide plate, and the light source is located between the light guide plate and the heat conduction plate and attached to the heat conducting plate.
本实用新型的背光模组，其中，所述光源的出光面与所述导光板的背面的边缘相对。In the backlight module of the present invention, the light emitting surface of the light source is opposite to the edge of the back of the light guide plate.
本实用新型的背光模组，其中，所述背光模组还包括第一反射结构，所述第一反射结构位于所述光源的出光面一侧，用于将所述光源发出的光向所述导光板的中部反射。In the backlight module of the present utility model, the backlight module further includes a first reflective structure, the first reflective structure is located on the side of the light emitting surface of the light source, and is used to direct the light emitted by the light source to the Reflection in the middle of the light guide.
本实用新型的背光模组，其中，所述第一反射结构包括所述导光板的靠近所述光源的侧面，所述侧面的靠近光源一侧的边向外倾斜，使得所述侧面将所述光源发出的光向所述导光板的中部反射。In the backlight module of the present utility model, the first reflective structure includes a side of the light guide plate close to the light source, and the side of the side close to the light source is inclined outward, so that the side faces the The light emitted by the light source is reflected toward the middle of the light guide plate.
本实用新型的背光模组，其中，所述侧面靠近光源一侧的边向外倾斜的角度为45度。In the backlight module of the present invention, the angle at which the side of the side surface close to the light source is inclined outward is 45 degrees.
本实用新型的背光模组，其中，所述第一反射结构还包括贴附于所述侧面上的反光板，所述反光板的反射面朝向所述光源。In the backlight module of the present invention, the first reflective structure further includes a reflective plate attached to the side surface, and the reflective surface of the reflective plate faces the light source.
本实用新型的背光模组，其中，所述导热板的与光源对应的位置处设置有凹槽，所述光源贴附于所述凹槽内。In the backlight module of the present utility model, a groove is provided at a position corresponding to the light source on the heat conducting plate, and the light source is attached to the groove.
本实用新型的背光模组，其中，所述导光板的背面具有第二反射结构，以将从所述导光板射出的光线反射回所述导光板的内部。In the backlight module of the present invention, the back of the light guide plate has a second reflective structure to reflect the light emitted from the light guide plate back to the inside of the light guide plate.
本实用新型的背光模组，其中，所述第二反射结构为贴附于所述导光板的背面的朝向所述导光板的出光面的底面反光板。In the backlight module of the present invention, the second reflective structure is a bottom reflector attached to the back of the light guide plate and facing the light emitting surface of the light guide plate.
本实用新型的背光模组，其中，所述光源包括多个LED灯。In the backlight module of the present invention, the light source includes a plurality of LED lamps.
本实用新型的显示装置，包括本实用新型的背光模组。The display device of the present invention includes the backlight module of the present invention.
本实用新型实施例的背光模组，导热板和光源均设置于导光板的背面一侧，大幅度节省导光板边缘空间，由此本实用新型实施例的背光模组边框较窄；光源贴附于导热板上，光源背面的散热片和导热板直接接触，大幅度提高其散热性能；同时背光模组在受到震动时，光源不会受到冲击，有效保证背光模组的使用安全。In the backlight module of the embodiment of the utility model, the heat conduction plate and the light source are arranged on the back side of the light guide plate, which greatly saves the edge space of the light guide plate, so the frame of the backlight module of the embodiment of the utility model is narrow; the light source is attached On the heat conduction plate, the heat sink on the back of the light source is in direct contact with the heat conduction plate, greatly improving its heat dissipation performance; at the same time, when the backlight module is shaken, the light source will not be impacted, effectively ensuring the safety of the backlight module.
本实用新型的显示装置，因为采用本实用新型的背光模组，有效提高光源的散热性；同时使显示装置的边框可以变得较窄，极大的提升了产品的品质。The display device of the present invention effectively improves the heat dissipation of the light source by adopting the backlight module of the present invention; at the same time, the frame of the display device can be narrowed, which greatly improves the quality of the product.
附图说明Description of drawings
图1为现有技术的背光模组的结构示意图；FIG. 1 is a schematic structural view of a backlight module in the prior art;
图2为本实用新型的背光模组的结构示意图；Fig. 2 is the structural representation of the backlight module of the present utility model;
图3为图2中导热板和光源的俯视图；Fig. 3 is a top view of the heat conducting plate and the light source in Fig. 2;
图4为本实用新型的背光模组中导光板、反光板、底面反光板和导热板的组装示意图。4 is a schematic diagram of the assembly of the light guide plate, the reflector plate, the bottom reflector plate and the heat conduction plate in the backlight module of the present invention.
具体实施方式Detailed ways
如图2所示，本实用新型实施例的背光模组，包括导光板1、光源2以及导热板3。导热板3和光源2均设置于导光板1的背面一侧，光源2位于导光板1和导热板3之间且贴附于导热板3上。导热板3的背面一侧设置有背板90。背板90与导光板1通过胶框80封装固定在一起。As shown in FIG. 2 , the backlight module of the embodiment of the present invention includes a light guide plate 1 , a
需要说明的是，附图中示出的是，光源2位于导光板1的两相对侧面。本实用新型的背光模组的其他实施例中，光源还可以只位于导光板的一侧，或者根据需要进行其他不同的位置设置，其他如胶框等也可以进行适应性调整。光源位于导光板的两相对侧面是为了光线通过导光板之后得到更加均匀的面光源。It should be noted that, as shown in the drawings, the
本实用新型实施例的背光模组，导热板和光源均设置于导光板的背面一侧，大幅度节省导光板边缘空间，由此本实用新型实施例的背光模组边框较窄；光源贴附于导热板上，光源背面的散热片和导热板直接接触，大幅度提高其散热性能；同时背光模组在被震动时，光源不会受到冲击，有效保证背光模组的使用安全。In the backlight module of the embodiment of the utility model, the heat conduction plate and the light source are arranged on the back side of the light guide plate, which greatly saves the edge space of the light guide plate, so the frame of the backlight module of the embodiment of the utility model is narrow; the light source is attached On the heat conduction plate, the heat sink on the back of the light source is in direct contact with the heat conduction plate, which greatly improves its heat dissipation performance; at the same time, when the backlight module is shaken, the light source will not be impacted, effectively ensuring the safety of the backlight module.
为从光板1的正面得到比较均匀的出射光，本实用新型实施例的背光模组，其中，光源2的出光面与导光板1的背面的边缘相对。光源2所发出的光进入导光板1后将向导光板1的另一端传导，然后由导光板1的正面均匀射出。In order to obtain relatively uniform emitted light from the front of the light plate 1 , in the backlight module of the embodiment of the present invention, the light emitting surface of the
为进一步增强背光模组的出光品质，本实用新型实施例的背光模组，其中，背光模组还包括第一反射结构11。第一反射结构11位于光源2的出光面一侧，用于将光源2发出的光向导光板1的中部反射，以此避免光线在导光板1的边缘汇聚，使光线由导光板1的正面更为均匀的射出。In order to further enhance the light output quality of the backlight module, the backlight module according to the embodiment of the present utility model, wherein the backlight module further includes a first
第一反射结构11包括所述导光板的靠近光源2的侧面5。侧面5的靠近光源2一侧的边向外倾斜，使得侧面5将光源2发出的光向导光板1的中部反射。The
本实用新型实施例的背光模组，其中，侧面5靠近光源2一侧的边向外倾斜的角度为45度。In the backlight module according to the embodiment of the present invention, the angle at which the side of the
为进一步增强背光模组的出光品质，本实用新型实施例的背光模组，其中第一反射结构11还包括贴附于侧面5上的反光板7。反光板7的反射面朝向光源2，用于将光源2的光线反射至导光板1的内部，以此避免光线由导光板1的边缘漏出，同时使光线由导光板1的正面更为均匀的射出。需要说明的是，第一反射结构11不限于在侧面5上贴附反光板的方式，还可以为在侧面5上涂覆反光涂料的方式，或者在侧面5进行的结构设计（如凹槽或者凸起），只要能使得光源2发出的光通过第一反射结构能射入导光板1的内部，都在本实用新型的保护范围内。In order to further enhance the light output quality of the backlight module, in the backlight module of the embodiment of the present invention, the first
结合图3、图4所示，本实用新型实施例的背光模组，其中，导热板3的与光源2对应的位置处设置有凹槽31。光源2贴附于凹槽31内。导热板3与背板90紧密贴合在一起，有助于增强背光模组的整体强度。As shown in FIG. 3 and FIG. 4 , in the backlight module of the embodiment of the present invention, a
为进一步增强背光模组的出光品质，本实用新型实施例的背光模组，其中，导光板1的背面具有第二反射结构12，以将从导光板1射出的光线反射回导光板1的内部。In order to further enhance the light quality of the backlight module, in the backlight module of the embodiment of the present invention, the back of the light guide plate 1 has a second
第二反射结构12为贴附于导光板1的背面的底面反光板8。底面反光板8朝向导光板1的出光面。底面反光板8的作用在于杜绝光损失，使光源2发出的光大部分由从光板1的正面出射。The second
本实用新型实施例的背光模组，其中，光源2包括多个LED灯。以所述光源位于导光板的两相对侧面举例说明，光源2包括第一光源组21和第二光源组22，第一光源组21的出光面、第二光源组22的出光面分别与导光板1的背面的相对边缘相对。具体来说，第一光源组21的出光面与导光板1的背面的第一边的边缘相对，第二光源组22的出光面与导光板1的背面的第二边的边缘相对。第二边与第一边为相对的两个侧边。In the backlight module of the embodiment of the present invention, the
导光板1的靠近光源2的侧面5包括靠近第一光源组21的第一侧面51。反光板7包括第一反光板71，第一侧面51上贴附有朝向第一光源组21的第一反光板71，用于将第一光源组21的光线反射至导光板1的中部。The
导光板1的靠近光源2的侧面5包括靠近第二光源组22的第二侧面52，反光板7包括第二反光板72，第二侧面52上贴附有朝向第二光源组22的第二反光板72，用于将第二光源组22的光线反射至导光板1的中部。The
本实用新型实施例的背光模组，其中，第一光源组21、第二光源组22均包括多个LED灯10，第一光源组21的LED灯10、第二光源组22的LED灯10分别沿导热板3的两边平行排列且贴附于导热板3的凹槽31内。In the backlight module of the embodiment of the present invention, the first
本实用新型实施例的显示装置，包括背光模组，上述背光模组是上述实施例中的背光模组。The display device of the embodiment of the present utility model includes a backlight module, and the above-mentioned backlight module is the backlight module in the above-mentioned embodiment.
本实用新型的显示装置，因为采用本实用新型的背光模组，有效提高光源的散热性；同时使显示装置的边框可以变得较窄，极大的提升了产品的品质。The display device of the present invention effectively improves the heat dissipation of the light source by adopting the backlight module of the present invention; at the same time, the frame of the display device can be narrowed, which greatly improves the quality of the product.
以上所述仅是本实用新型的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本实用新型原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本实用新型的保护范围。The above is only a preferred embodiment of the utility model, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the utility model, some improvements and modifications can also be made, these improvements and Retouching should also be regarded as the scope of protection of the present utility model.
Claims (11)
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104296002A (en)* | 2014-09-17 | 2015-01-21 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display device using same |
| CN104728661A (en)* | 2013-12-19 | 2015-06-24 | 宁波市能捷电子有限公司 | Backlight module for eliminating shadows |
| CN107505671A (en)* | 2017-09-25 | 2017-12-22 | 京东方科技集团股份有限公司 | Backlight module, its preparation method and include its display device |
| CN107797337A (en)* | 2017-09-27 | 2018-03-13 | 联想(北京)有限公司 | A kind of backlight module and electronic equipment |
| CN104728661B (en)* | 2013-12-19 | 2018-08-31 | 宁波市能捷电子有限公司 | Backlight module for eliminating shadow |
- 2012
- 2012-10-31CNCN2012205698887Upatent/CN202868487U/ennot_activeExpired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104728661A (en)* | 2013-12-19 | 2015-06-24 | 宁波市能捷电子有限公司 | Backlight module for eliminating shadows |
| CN104728661B (en)* | 2013-12-19 | 2018-08-31 | 宁波市能捷电子有限公司 | Backlight module for eliminating shadow |
| CN104296002A (en)* | 2014-09-17 | 2015-01-21 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display device using same |
| CN107505671A (en)* | 2017-09-25 | 2017-12-22 | 京东方科技集团股份有限公司 | Backlight module, its preparation method and include its display device |
| WO2019057207A1 (en)* | 2017-09-25 | 2019-03-28 | 京东方科技集团股份有限公司 | Backlight module, manufacturing method therefor, display device comprising same and lighting device |
| US11340393B2 (en) | 2017-09-25 | 2022-05-24 | Fuzhou Boe Optoelectronics Technology Co., Ltd. | Backlight module including side surface having acute angle manufacturing method thereof and display device and illuminating device comprising the same |
| CN107797337A (en)* | 2017-09-27 | 2018-03-13 | 联想(北京)有限公司 | A kind of backlight module and electronic equipment |
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