技术领域technical field
本发明涉及液晶显示装置技术领域，具体涉及一种能提高对比度的液晶显示装置。The invention relates to the technical field of liquid crystal display devices, in particular to a liquid crystal display device capable of improving contrast.
背景技术Background technique
液晶显示装置的结构包括液晶面板和背光模组。液晶面板本身不发光，需要借助背光模组提供的光源来正常显示影像。根据光源的入射方式不同，背光模组可以分为直下式背光模组和侧入式背光模组。其中，侧入式背光模组是将背光源LED灯条设置于液晶面板侧后方的背板边缘，LED灯条发出的光线从导光板一侧的入光面进入导光板，经反射和扩散后从导光板出光面射出，再经由光学膜片组，以形成面光源提供给液晶面板。The structure of the liquid crystal display device includes a liquid crystal panel and a backlight module. The LCD panel itself does not emit light, and needs the light source provided by the backlight module to display images normally. According to different incidence modes of the light source, the backlight module can be divided into a direct-type backlight module and an edge-type backlight module. Among them, the side-type backlight module is to install the backlight LED strip on the edge of the back panel behind the liquid crystal panel. The light emitted by the LED strip enters the light guide plate from the light incident surface on one side of the light guide plate and is reflected and diffused. It emits from the light-emitting surface of the light guide plate, and then passes through the optical film group to form a surface light source and provide it to the liquid crystal panel.
现有技术中的液晶显示装置，光源本身会发热，在长期使用的过程中，如果热量不能及时导走，则容易导致整个液晶显示装置的温度不均，进而导致液晶显示的对比度比较差，并会出现明显色差的问题。In the liquid crystal display device in the prior art, the light source itself will generate heat. During long-term use, if the heat cannot be dissipated in time, it will easily lead to uneven temperature of the entire liquid crystal display device, which will lead to relatively poor contrast of the liquid crystal display and cause There will be a problem of obvious color difference.
发明内容Contents of the invention
本发明的目的在于针对现有技术的不足，提供一种能提高对比度的液晶显示装置，该能提高对比度的液晶显示装置能够避免整个液晶显示装置的温度不均的问题，进而提高对比度，避免出现色差。The object of the present invention is to address the deficiencies in the prior art, to provide a liquid crystal display device capable of improving contrast, which can avoid the problem of uneven temperature in the entire liquid crystal display device, thereby improving contrast and avoiding the occurrence of chromatic aberration.
为实现上述目的，本发明提供以下技术方案：To achieve the above object, the present invention provides the following technical solutions:
提供一种能提高对比度的液晶显示装置，包括液晶显示面板和背光模组，所述背光模组包括背框、设置于所述背框内的由多个发光源排列组成的背光源、设置于所述背光源一侧的导光板、以及设置于所述导光板上的扩散板；所述液晶显示面板设置于所述扩散板的一侧；A liquid crystal display device capable of improving contrast is provided, comprising a liquid crystal display panel and a backlight module, the backlight module including a back frame, a back light source arranged in the back frame and composed of a plurality of light emitting sources arranged in the A light guide plate on one side of the backlight source, and a diffusion plate disposed on the light guide plate; the liquid crystal display panel is disposed on one side of the diffusion plate;
所述背光模组还包括第一散热件和第二散热件，所述第一散热件分别连接所述液晶显示面板与所述导光板的一端部，所述第二散热件分别连接所述液晶显示面板与所述导光板的另一端部；The backlight module also includes a first heat sink and a second heat sink, the first heat sink is respectively connected to the liquid crystal display panel and one end of the light guide plate, and the second heat sink is respectively connected to the liquid crystal the display panel and the other end of the light guide plate;
所述背光模组还包括设置于所述背框上的导热件，所述导热件包括相互连接的第一导热部和第二导热部、以及与所述第二导热部连接的第三导热部，所述第一导热部设置于所述导光板的下方，所述第二导热部环绕于所述背光源的一侧，所述第三导热部由所述第二导热部延伸至所述背框外。The backlight module further includes a heat conduction member disposed on the back frame, the heat conduction member includes a first heat conduction portion and a second heat conduction portion connected to each other, and a third heat conduction portion connected to the second heat conduction portion , the first heat conduction part is disposed under the light guide plate, the second heat conduction part surrounds one side of the backlight source, and the third heat conduction part extends from the second heat conduction part to the backlight outside the box.
所述第一导热部与所述第二导热部为一体成型结构。The first heat conduction part and the second heat conduction part are integrally formed.
所述第二导热部设置为弧形的第二导热部。The second heat conduction portion is configured as an arc-shaped second heat conduction portion.
所述导热件设置为液态金属导热件。The heat conduction element is set as a liquid metal heat conduction element.
所述扩散板包括入光面和出光面，所述扩散板的出光面由若干个依次排列的半圆拼接而成。The diffuser plate includes a light incident surface and a light output surface, and the light output surface of the diffuser plate is formed by splicing several semicircles arranged in sequence.
所述半圆的半径均设置为0.01mm～3mm。The radii of the semicircles are all set to be 0.01mm˜3mm.
所述半圆的半径均设置为0.5mm。The radii of the semicircles are all set to 0.5 mm.
所述半圆的半径均设置为1mm。The radii of the semicircles are all set to 1 mm.
所述由若干个依次排列的半圆拼接而成的出光面与所述扩散板是一体结构。The light-emitting surface formed by splicing several sequentially arranged semicircles is integral with the diffusion plate.
所述扩散板为PP塑料制成的扩散板、PET塑料制成的扩散板或HDPE塑料制成的扩散板。The diffusion plate is a diffusion plate made of PP plastic, a diffusion plate made of PET plastic or a diffusion plate made of HDPE plastic.
本发明的有益效果：Beneficial effects of the present invention:
(1)本发明的一种能提高对比度的液晶显示装置，包括液晶显示面板和背光模组，背光模组包括背框、设置于背框内的由多个发光源排列组成的背光源、设置于背光源一侧的导光板、以及设置于导光板上的扩散板；液晶显示面板设置于扩散板的一侧；背光模组还包括第一散热件和第二散热件，第一散热件分别连接液晶显示面板与导光板的一端部，第二散热件分别连接液晶显示面板与导光板的另一端部；背光模组还包括设置于背框上的导热件，导热件包括相互连接的第一导热部和第二导热部、以及与第二导热部连接的第三导热部，第一导热部设置于导光板的下方，第二导热部环绕于背光源的一侧，第三导热部由第二导热部延伸至背框外。一方面，由于第一散热件和第二散热件能够及时将液晶显示面板和导光板上的热量散走，另一方面，由于导热件能够将背框上靠近导光板和背光源部分的热量及时导走，进而能够避免整个液晶显示装置的温度不均的问题，进而提高对比度，避免出现色差。(1) A liquid crystal display device capable of improving contrast of the present invention comprises a liquid crystal display panel and a backlight module. The light guide plate on one side of the backlight source and the diffuser plate arranged on the light guide plate; the liquid crystal display panel is arranged on one side of the diffuser plate; the backlight module also includes a first heat sink and a second heat sink, and the first heat sink is respectively One end of the liquid crystal display panel and the light guide plate is connected, and the second heat sink is respectively connected with the other end of the liquid crystal display panel and the light guide plate; The heat conduction part, the second heat conduction part, and the third heat conduction part connected with the second heat conduction part, the first heat conduction part is arranged under the light guide plate, the second heat conduction part surrounds one side of the backlight, and the third heat conduction part is formed by the second heat conduction part The second heat conduction part extends to the outside of the back frame. On the one hand, because the first heat sink and the second heat sink can dissipate the heat on the liquid crystal display panel and the light guide plate in time, on the other hand, because the heat conduction member can timely dissipate the heat on the back frame near the light guide plate and the backlight lead away, thereby avoiding the problem of uneven temperature of the entire liquid crystal display device, thereby improving contrast and avoiding chromatic aberration.
(2)本发明的一种能提高对比度的液晶显示装置，具有结构简单、生产成本低、并能适合大规模生产的特点。(2) The contrast-enhancing liquid crystal display device of the present invention has the characteristics of simple structure, low production cost, and being suitable for large-scale production.
附图说明Description of drawings
图1为本发明的一种能提高对比度的液晶显示装置的结构示意图。FIG. 1 is a schematic structural diagram of a liquid crystal display device capable of improving contrast in the present invention.
附图标记：Reference signs:
背框1；back frame 1;
背光源2；Backlight 2;
导光板3；Light guide plate 3;
扩散板4、入光面41、出光面42、半圆401；Diffusion plate 4, light incident surface 41, light exit surface 42, semicircle 401;
液晶显示面板5；Liquid crystal display panel 5;
第一散热件6；The first heat sink 6;
第二散热件7；The second heat sink 7;
导热件8、第一导热部81、第二导热部82、第三导热部83。The heat conduction element 8 , the first heat conduction portion 81 , the second heat conduction portion 82 , and the third heat conduction portion 83 .
具体实施方式detailed description
以下结合具体实施例及附图对本发明进行详细说明。The present invention will be described in detail below in conjunction with specific embodiments and accompanying drawings.
实施例1。Example 1.
本实施例的一种能提高对比度的液晶显示装置，如图1所示，包括液晶显示面板5和背光模组，背光模组包括背框1、设置于背框1内的由多个发光源排列组成的背光源2、设置于背光源2一侧的导光板3、以及设置于导光板3上的扩散板4；液晶显示面板5设置于扩散板4的一侧；背光模组还包括第一散热件6和第二散热件7，第一散热件6分别连接液晶显示面板5与导光板3的一端部，第二散热件7分别连接液晶显示面板5与导光板3的另一端部；背光模组还包括设置于背框1上的导热件8，导热件8包括相互连接的第一导热部81和第二导热部82、以及与第二导热部82连接的第三导热部83，第一导热部81设置于导光板3的下方，第二导热部82环绕于背光源2的一侧，第三导热部83由第二导热部82延伸至背框1外。一方面，由于第一散热件6和第二散热件7能够及时将液晶显示面板5和导光板3上的热量散走，另一方面，由于背框1上靠近导光板3和背光源2的部分容易积聚热量，导热件8能够将背框1上靠近导光板3和背光源2部分的热量及时导走，进而能够避免整个液晶显示装置的温度不均的问题，进而提高对比度，避免出现色差。A kind of liquid crystal display device that can improve contrast of this embodiment, as shown in Figure 1, comprises liquid crystal display panel 5 and backlight module, and backlight module comprises back frame 1, is arranged in back frame 1 by a plurality of light emitting sources The backlight 2 arranged in an arrangement, the light guide plate 3 arranged on one side of the backlight 2, and the diffusion plate 4 arranged on the light guide plate 3; the liquid crystal display panel 5 is arranged on one side of the diffusion plate 4; the backlight module also includes a second A heat sink 6 and a second heat sink 7, the first heat sink 6 is respectively connected to one end of the liquid crystal display panel 5 and the light guide plate 3, and the second heat sink 7 is respectively connected to the other end of the liquid crystal display panel 5 and the light guide plate 3; The backlight module also includes a heat conduction member 8 disposed on the back frame 1, the heat conduction member 8 includes a first heat conduction portion 81 and a second heat conduction portion 82 connected to each other, and a third heat conduction portion 83 connected to the second heat conduction portion 82, The first heat conduction portion 81 is disposed under the light guide plate 3 , the second heat conduction portion 82 surrounds one side of the backlight 2 , and the third heat conduction portion 83 extends from the second heat conduction portion 82 to the outside of the back frame 1 . On the one hand, because the first heat sink 6 and the second heat sink 7 can dissipate the heat on the liquid crystal display panel 5 and the light guide plate 3 in time; The part is easy to accumulate heat, and the heat conduction member 8 can conduct the heat away from the part of the back frame 1 close to the light guide plate 3 and the backlight 2 in time, thereby avoiding the problem of uneven temperature of the entire liquid crystal display device, thereby improving the contrast and avoiding chromatic aberration .
本实施例中，第一导热部82与第二导热部83为一体成型结构，进而具有便于生产和导热的特点。In this embodiment, the first heat conduction part 82 and the second heat conduction part 83 are integrally formed, which is convenient for production and heat conduction.
本实施例中，第二导热部82设置为弧形的第二导热部82，进而便于将背框1中靠近背光源2附近的部分的热量及时导走。In this embodiment, the second heat conduction portion 82 is configured as an arc-shaped second heat conduction portion 82 , which facilitates timely conduction of heat away from the part of the back frame 1 near the backlight source 2 .
本实施例中，导热件8设置为液态金属导热件，进而具有导热快、导热效果好的优点。In this embodiment, the heat conduction element 8 is set as a liquid metal heat conduction element, which further has the advantages of fast heat conduction and good heat conduction effect.
本实施例中，扩散板4包括入光面41和出光面42，扩散板4的出光面42由若干个依次排列的半圆401拼接而成，由若干个依次排列的半圆401拼接而成的出光面42由于具有光线散射效果好的特点，并能够避免光线反射回来，进而能够使得热量不容易积聚，因此能够进一步避免整个液晶显示装置的温度不均的问题，进而提高对比度，避免出现色差。In this embodiment, the diffusion plate 4 includes a light incident surface 41 and a light exit surface 42. The light exit surface 42 of the diffusion plate 4 is formed by splicing several semicircles 401 arranged in sequence, and the light exit surface formed by splicing several semicircles 401 arranged in sequence Because the surface 42 has the characteristics of good light scattering effect and can prevent light from being reflected back, it can prevent heat from accumulating, so it can further avoid the problem of uneven temperature of the entire liquid crystal display device, thereby improving contrast and avoiding chromatic aberration.
本实施例中，半圆401的半径均设置为0.5mm，该半径的半圆401拼接而成的出光面42由于具有光线散射效果好的特点，并能够避免光线反射回来，进而能够使得热量不容易积聚，因此能够进一步避免整个液晶显示装置的温度不均的问题，进而提高对比度，避免出现色差。In this embodiment, the radius of the semicircles 401 is set to 0.5mm, and the light emitting surface 42 formed by splicing the semicircles 401 with this radius has the characteristics of good light scattering effect and can avoid light reflection back, thereby making it difficult for heat to accumulate , so that the problem of uneven temperature of the entire liquid crystal display device can be further avoided, thereby improving the contrast and avoiding chromatic aberration.
本实施例中，由若干个依次排列的半圆401拼接而成的出光面42与扩散板4是一体结构，进而具有光线散射效果好的特点。In this embodiment, the light emitting surface 42 and the diffuser plate 4 formed by splicing several semicircles 401 arranged in sequence are of an integral structure, which further has the characteristics of good light scattering effect.
本实施例中，扩散板4为PP塑料制成的扩散板4，进而具有光线散射效果好的特点。In this embodiment, the diffusion plate 4 is made of PP plastic, which further has the characteristics of good light scattering effect.
实施例2。Example 2.
本发明的一种能提高对比度的液晶显示装置的实施例2，本实施例与实施例1的不同之处在于，本实施例中，半圆401的半径均设置为1mm，该半径的半圆401拼接而成的出光面42由于具有光线散射效果好的特点，并能够避免光线反射回来，进而能够使得热量不容易积聚，因此能够进一步避免整个液晶显示装置的温度不均的问题，进而提高对比度，避免出现色差。本实施例中，扩散板4为PET塑料制成的扩散板4，进而具有光线散射效果好的特点。本实施例的其它结构及工作原理与实施例1相同，在此不再赘述。Embodiment 2 of a liquid crystal display device capable of improving contrast of the present invention, the difference between this embodiment and Embodiment 1 is that in this embodiment, the radius of the semicircle 401 is set to 1 mm, and the semicircle 401 of this radius is spliced The formed light-emitting surface 42 has the characteristics of good light scattering effect and can avoid light reflection back, thereby making it difficult for heat to accumulate, thus further avoiding the problem of uneven temperature of the entire liquid crystal display device, thereby improving contrast and avoiding Chromatic aberration occurs. In this embodiment, the diffusion plate 4 is a diffusion plate 4 made of PET plastic, which further has the characteristics of good light scattering effect. Other structures and working principles of this embodiment are the same as those of Embodiment 1, and will not be repeated here.
实施例3。Example 3.
本发明的一种能提高对比度的液晶显示装置的实施例3，本实施例与实施例1的不同之处在于，本实施例中，半圆401的半径均设置为0.01mm，该半径的半圆401拼接而成的出光面42由于具有光线散射效果好的特点，并能够避免光线反射回来，进而能够使得热量不容易积聚，因此能够进一步避免整个液晶显示装置的温度不均的问题，进而提高对比度，避免出现色差。本实施例中，扩散板4为HDPE塑料制成的扩散板4，进而具有光线散射效果好的特点。本实施例的其它结构及工作原理与实施例1相同，在此不再赘述。Embodiment 3 of a liquid crystal display device capable of improving contrast of the present invention, the difference between this embodiment and Embodiment 1 is that in this embodiment, the radius of the semicircle 401 is set to 0.01mm, and the radius of the semicircle 401 The spliced light-emitting surface 42 has the characteristics of good light scattering effect, and can avoid light reflection, thereby making it difficult to accumulate heat, so that the problem of uneven temperature of the entire liquid crystal display device can be further avoided, and the contrast ratio can be improved. Avoid chromatic aberration. In this embodiment, the diffusion plate 4 is a diffusion plate 4 made of HDPE plastic, which further has the characteristics of good light scattering effect. Other structures and working principles of this embodiment are the same as those of Embodiment 1, and will not be repeated here.
实施例4。Example 4.
本发明的一种能提高对比度的液晶显示装置的实施例4，本实施例与实施例1的不同之处在于，本实施例中，半圆401的半径均设置为3mm，该半径的半圆401拼接而成的出光面42由于具有光线散射效果好的特点，并能够避免光线反射回来，进而能够使得热量不容易积聚，因此能够进一步避免整个液晶显示装置的温度不均的问题，进而提高对比度，避免出现色差。本实施例的其它结构及工作原理与实施例1相同，在此不再赘述。Embodiment 4 of a liquid crystal display device capable of improving contrast of the present invention, the difference between this embodiment and Embodiment 1 is that in this embodiment, the radius of the semicircle 401 is set to 3mm, and the semicircle 401 of this radius is spliced The formed light-emitting surface 42 has the characteristics of good light scattering effect and can avoid light reflection back, thereby making it difficult for heat to accumulate, thus further avoiding the problem of uneven temperature of the entire liquid crystal display device, thereby improving contrast and avoiding Chromatic aberration occurs. Other structures and working principles of this embodiment are the same as those of Embodiment 1, and will not be repeated here.
最后应当说明的是，以上实施例仅用以说明本发明的技术方案，而非对本发明保护范围的限制，尽管参照较佳实施例对本发明作了详细地说明，本领域的普通技术人员应当理解，可以对本发明的技术方案进行修改或者等同替换，而不脱离本发明技术方案的实质和范围。Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting the protection scope of the present invention, although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand , the technical solution of the present invention may be modified or equivalently replaced without departing from the spirit and scope of the technical solution of the present invention.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710763322.5ACN107643629A (en) | 2017-08-30 | 2017-08-30 | Liquid crystal display device capable of improving contrast |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710763322.5ACN107643629A (en) | 2017-08-30 | 2017-08-30 | Liquid crystal display device capable of improving contrast |
| Publication Number | Publication Date |
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| CN107643629Atrue CN107643629A (en) | 2018-01-30 |
| Application Number | Title | Priority Date | Filing Date |
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| CN201710763322.5APendingCN107643629A (en) | 2017-08-30 | 2017-08-30 | Liquid crystal display device capable of improving contrast |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | Application publication date:20180130 | |
| RJ01 | Rejection of invention patent application after publication |