Backlight module and liquid crystal display device thereof
A backlight module and one-sided technology, applied in lighting devices, fixed lighting devices, lighting device components, etc., can solve problems such as increased processing costs of light guide plates, unfavorable narrow frame design, and failure of double-sided adhesive positioning functions, etc., to achieve Effect of improving light utilization and improving reliability
Active Publication Date: 2015-06-17
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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Problems solved by technology
[0005] The inventors of the present application have found in the long-term research and development that in the prior art, the positioning of the reflective sheet by opening a gap on the reflective sheet is not conducive to the design of the narrow frame, and the light guide plate also needs to open a gap, which may easily lead to other adverse situations. At the same time It also increases the processing cost of the light guide plate; and for the positioning of the reflector through the double-sided adhesive, the heating of the reflector will cause the failure of the positioning function of the double-sided adhesive, which will cause adverse situations
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[0024] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the implementation manners in the present invention, all other implementation manners obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.
[0025] Please also refer to figure 1 , figure 2 , image 3 , Figure 4 and Figure 5 , figure 1 It is a partial cross-sectional schematic view after assembly of the embodiment of the backlight module 10 of the present invention, figure 2 It is a three-dimensional schematic diagram of the reflection sheet 12 in the embodiment of the backlight module 10 of the present invention, image 3 yes figure 2 An enlarged vie...
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A backlight module (10) and a liquid crystal display apparatus (20). The backlight module (10) comprises a light guide plate (11), a reflecting sheet (12), and an elastic body (13, 14, 15, 16). The elastic body (13, 14, 15, 16) is disposed at a corner of the light guide plate (11) to support the light guide plate (11). The reflecting sheet (12) is disposed at one side of the light guide plate (11) towards the elastic body (13, 14, 15, 16), and at least one slot (130) is disposed on a surface of the elastic body (13, 14, 15, 16) towards the reflecting sheet (12). At least one folding sheet (120) is disposed on a brim of the reflecting sheet (12) corresponding to the slot (130), and the folding sheet (120) of the reflecting sheet (12) is inserted into the slot (130) of the elastic body (13, 14, 15, 16) to be located opposite to the elastic body (13, 14, 15, 16). By means of the above mode, the reliability of locating the reflecting sheet (12) in the backlight module (10) is improved, the utilization rate of light is improved, and the backlight module (10) is suitable for the design of a narrow frame.
Description
technical field [0001] The invention relates to the technical field of liquid crystal display, in particular to a backlight module and a liquid crystal display device thereof. Background technique [0002] In the backlight module, the use of reflective sheets can improve the utilization rate of light. If the actual position of the reflective sheet deviates or moves compared with the designed position, it will easily lead to bad situations such as bright bands, dark bands, and low light utilization. Therefore, the positioning of the reflective sheet is also very important. [0003] In the prior art, a method for positioning the reflective sheet is: opening a gap on the reflective sheet, and positioning the backboard by setting a convex hull or by riveting posts. [0004] In the prior art, another method for positioning the reflective sheet is: realizing the positioning of the reflective sheet in the backlight module through the sticking effect of the double-sided adhesive ta...
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IPC IPC(8): F21S8/00F21V17/10G02F1/13357
CPCG02F1/133615G02F1/133605G02F2201/46
Inventor 萧宇均李全
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD