Backlight structure and liquid crystal display screen
A backlight structure and backplane technology, applied in optics, light sources, electric light sources, etc., can solve the problems of thick module thickness, occupation, and increase the cost of illuminants, so as to achieve uniformity, improve light mixing efficiency, and reduce backlighting. The effect of thickness
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Embodiment 1
[0025] Such as figure 1 As shown, the backlight structure provided in Embodiment 1 includes a backplane 10, wherein the backplane structure is different from the existing flat plate design, and has a raised structure, and the raised structure is that the backplane faces inward. Arc-shaped protrusions, or arc-shaped surfaces, here, according to the size of the backplane, the direction of the large size is called the width direction, and the direction of the relatively small size is called the height direction. This embodiment requires the convexity of the arc-shaped surface The protruding structure is a structure that gradually protrudes from both sides in the width direction to the middle, that is, the height of the protrusions in the same width direction of the back plate 10 is the same in the height direction, and the illuminants are evenly arranged on the back plate 10 side by side. Here The illuminant is the LED light bar 20. The backlight structure provided by this embodi...
Embodiment 2
[0027] Such as figure 2 As shown, the bump structure of this backlight structure is the inward strip-shaped protrusions 30 arranged in advance according to a certain rule on the backplane 10. These strip-shaped protrusions 30 are arranged in the width direction of the backplane 10, and the strips The upper surface of the shaped protrusion 30 is arc-shaped with two ends low and the middle high, and the LED light bar 20 is pasted on the arc-shaped strip-shaped protrusion 30, see image 3 . Another example Figure 4 As shown, this direct-type liquid crystal display includes a front frame 1, a plastic frame 2, a liquid crystal glass 3, an optical film 4, a light guide plate 5, a back plate 10, a light bar 20, and a reflector 6. This backlight structure is used The LCD screen can further reduce the thickness of the backlight.
Embodiment 3
[0029] refer to Figure 5 to Figure 8 , the present embodiment is different from the above embodiments in that the protruding structure is a plurality of concentric ring platforms 40 protruding inward from the back plate. In this embodiment, there are two groups of concentric ring platforms 40, including inner ring platforms 41 and For the outer ring platform 42, in order to make the light effect more uniform, the center of the concentric ring platform 40 can be set at the center of the back plate 10. In addition, in order to make the LED light bar 20 have a certain angle of deformation like the above embodiment, The mesa of the concentric ring platform 40 of the present embodiment is an inclined plane, respectively, the mesa 43 of the inner ring platform 41 is a platform that lowers and inclines from the inside to the outside, and the platform 44 of the outer ring platform 42 is a platform that rises and inclines from the inside to the outside, like this, The LED light bar 20...
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