A kind of backlight assembly and liquid crystal display thereof
A technology of liquid crystal display and backlight components, which is applied in the direction of semiconductor devices, optics, and light sources of light-emitting elements, which can solve the problems of low heat dissipation efficiency of light sources, achieve the effect of shortening heat dissipation paths and improving heat dissipation efficiency
Active Publication Date: 2017-05-10
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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Problems solved by technology
[0004] Embodiments of the present invention provide a backlight assembly and its display to solve the technical problem of low heat dissipation efficiency of light sources in the prior art
Method used
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[0023] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments. In particular, the following examples are only used to illustrate the present invention, but not to limit the scope of the present invention. Likewise, the following embodiments are only some but not all embodiments of the present invention, and all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0024] Please also refer to Figure 4-Figure 6 , Figure 4 is a schematic structural view of a preferred embodiment of the backlight assembly of the present invention, Figure 5 yes Figure 4 The enlarged cross-sectional view of the backlight assembly in the embodiment, Figure 6 yes Figure 4 A partially enlarged cross-sectional view of a backlight assembly in an embodiment, the backlight assembly includes a light source 100 , a conductive copp...
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A backlight assembly and a liquid crystal display thereof. The backlight assembly comprises a light source (100), a conductive copper layer (200), a dielectric layer (300), a metal core printed circuit board (400) and a heat sink (500); the dielectric layer (300) is attached to and covers a side surface of the metal core printed circuit board (400); the conductive copper layer (200) is arranged on the dielectric layer (300); the light source (100) and the heat sink (500) are respectively connected to the conductive copper layer (200); the light source (100) conducts via the conductive copper layer (200) and transfers heat to the heat sink (500) via the conductive copper layer (200); and the heat sink (500) is used for cooling the backlight assembly. The backlight assembly connects the heat sink (500) with the light source (100) via the conductive copper layer (200), which shortens a cooling path of the light source (100) and improves the cooling efficiency. In addition, a bended metal core printed circuit board is applied, and therefore a heat sink can be directly welded for cooling on the premise of ensuring a narrow side design requirement of a display.
Description
technical field [0001] The invention relates to the technical field of liquid crystal displays, in particular to a backlight assembly and a liquid crystal display thereof. Background technique [0002] At present, narrow bezel is a major development trend of LCD TVs; narrow bezels can enable LCD TVs to obtain a larger viewing area under the same outer length and outer width; at the same time, the appearance is more fashionable and beautiful without the heavy bezel. [0003] While the liquid crystal display is pursuing a narrow frame, it also has higher requirements for the design of its internal structure, especially the heat dissipation structure of the backlight assembly. figure 1 It is a structural schematic diagram of an existing liquid crystal display backlight assembly, figure 2 for figure 1 A partially enlarged view of the middle backlight assembly, which includes a backplane 910 , a heat sink 920 and a light bar 930 . Please also refer to image 3 , image 3 It...
Claims
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IPC IPC(8): G02F1/13357F21S8/00F21V29/70F21V29/67F21Y115/10
CPCF21V29/00
Inventor 李德华萧宇均陈仕祥
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD