Backlight module and LCD (liquid crystal display)
A backlight module and light source technology, applied in instruments, optics, light guides, etc., can solve the problems that affect the coupling efficiency, and the minimum coupling distance between the light source and the light guide plate cannot be guaranteed, and achieve the effect of ensuring the coupling efficiency.
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[0039] The following descriptions of the various embodiments refer to the accompanying drawings to illustrate specific embodiments in which the present invention can be practiced.
[0040] see image 3 , image 3 It is a structural schematic diagram of the first preferred embodiment of the backlight module in the present invention, Figure 4 for image 3 top view. The backlight module includes a light source 21 , a light guide plate 22 , a positioning column 23 and a supporting column 24 .
[0041] The light guide plate 22 includes a reflective surface 221 and a light-emitting surface 222, between which the reflective surface 221 and the light-emitting surface 222 include an upper bottom surface 223 and a supporting bottom surface 224, and also includes a left side 225 and a right side 226, wherein, The length of the upper bottom surface 223 or the supporting bottom surface 224 is greater than the length of the left side 225 or the right side 226 .
[0042]The support bot...
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