Composite film, manufacturing method thereof, backlight source and display device
A production method and composite film technology, applied in chemical instruments and methods, optics, nonlinear optics, etc., can solve the problems of easy damage at the edge, falling powder, high cost of graphite sheets, etc., and achieve the goal of improving heat dissipation efficiency and shortening transmission distance Effect
Inactive Publication Date: 2021-03-02
BOE TECH GRP CO LTD +1
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Problems solved by technology
However, due to the high cost of graphite sheets, the edges are easily damaged and the powder falls off during cutting, it has formed limitations in mass production.
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[0024] In order to make the purpose, technical solution and advantages of the present invention more clear, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.
[0025] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways than described here. Therefore, the protection scope of the present invention is not limited by the specific implementation disclosed below. Example limitations.
[0026] A composite film, a manufacturing method of the composite film, a backlight source and a display device according to some embodiments of the present invention will be described below with reference to the accompanying...
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The invention discloses a composite membrane, a manufacturing method thereof, a backlight light and a display device. The composite membrane comprises a membrane body and a heat dissipation layer arranged on the surface of the membrane body, wherein the heat dissipation layer comprises a concave-convex structure. The heat dissipation layer of the composite membrane is arranged on the membrane body, the heat dissipation layer comprises the concave-convex structure, heat on the membrane body is outwards transferred through the concave-convex structure, the concave-convex structure achieves rapid heat dissipation in the thickness direction of the heat dissipation layer, and a heat transmission distance on the heat dissipation layer is effectively shortened to achieve the purpose of improving the heat dissipation efficiency of the membrane body.
Description
technical field [0001] The present invention relates to but not limited to liquid crystal display technology, especially to a composite film, a manufacturing method of the composite film, a backlight source and a display device. Background technique [0002] As the requirements for screen definition increase, more and more pixels are required, which requires a larger area to arrange the driving circuit. At this time, the extinction area will increase, and the overall light transmittance of the module will decrease. However, in order to To ensure that the overall brightness of the module cannot be reduced, most researchers in the industry increase the brightness of the backlight to solve this problem. The most fundamental and quick way to increase the brightness of the backlight is to increase the brightness of the light source LED. However, since the light-emitting part of the LED is mostly made of high-molecular polymethyl methacrylate (PET) matrix film with excellent light...
Claims
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IPC IPC(8): G02F1/13357B32B38/16B32B38/00B32B33/00B32B3/30
CPCB32B3/30B32B33/00B32B38/00B32B38/16B32B2307/302B32B2307/416B32B2457/20G02F1/133615G02F1/133628
Inventor 张树柏孙海威桑建马俊杰王振李金鹏
Owner BOE TECH GRP CO LTD