Light bar, backlight module comprising light bar and display device
A technology for backlight modules and light strips, which is applied to lighting devices, fixed lighting devices, components of lighting devices, etc., can solve problems such as light leakage of backlight modules and LED breakage, and achieve the effect of improving support strength and increasing area.
Active Publication Date: 2021-08-31
XIAMEN TIANMA MICRO ELECTRONICS
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- Application Information
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Problems solved by technology
[0004] In view of this, the present invention provides a light bar, a backlight module including a light bar, and a display device, which are used to improve problems such as LED breakage or backlight module light leakage caused by the inability of the FPC to support the LED in the prior art.
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[0033] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangements of components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.
[0034] The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses.
[0035] Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of the description.
[0036] In all examples shown and discussed herein, any specific values should be construed as exemplary only, and not as limitations. Therefore, other instances of the exemplary embodiment may have dif...
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The invention provides a light bar, a backlight module comprising the light bar and a display device. The light bar comprises a base material layer, an exposed copper layer, a film coating layer, a soldering tin layer and light-emitting elements, wherein the exposed copper layer comprises at least one group of copper piece units comprising first copper pieces and second copper pieces, and each of the first copper pieces and the second copper pieces comprises a body part and an extension part; the film coating layer is partially located on the side, away from the base material layer, of the exposed copper layer; the soldering tin layer is located on the surface, away from the base material layer, of the copper exposing layer, and orthographic projections of the film covering layer and the soldering tin layer on the base material layer are not overlapped; the light-emitting element is welded on one side, away from the substrate layer, of the soldering layer; any light-emitting element is at least partially overlapped with the orthographic projection of the body parts of the first copper piece and the second copper piece in one group of copper piece units on the base material layer, and any light-emitting element is not overlapped with the orthographic projection of the extension parts of the first copper piece and the second copper piece on the base material layer. The light bar is advantaged in that areas of the exposed copper layer and the soldering tin layer are increased, so the supporting strength around the light-emitting element is improved, and problems of breakage of the light-emitting element in the backlight module, light leakage of the backlight module and the like can be reduced.
Description
technical field [0001] The present invention relates to the field of display technology, and more specifically, to a light bar, a backlight module including the light bar, and a display device. Background technique [0002] With the continuous development and progress of electronic technology, electronic products are more and more widely used in people's lives, and the circuit board is one of the indispensable accessories in every electronic product. The circuit board is equipped with electronic components and As the carrier of electronic components, interface lines, etc., occupy a pivotal position in electronic products. Early circuit boards all used PCB (printed circuit board), which is commonly called "hard board" in the industry. PCB has high strength and high hardness, but its thickness is relatively thick and it is not easy to bend; Also invented "soft board", that is, FPC (flexible circuit board), which has good flexibility and thin thickness. [0003] LED (Light Em...
Claims
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Login to View More IPC IPC(8): F21S8/00F21V19/00H05K1/02H05K1/18F21Y115/10
CPCF21S8/00F21V19/001H05K1/0281H05K1/181H05K2201/10106F21Y2115/10
Inventor 洪金龙
Owner XIAMEN TIANMA MICRO ELECTRONICS