Quantum dot optical element and backlight unit
An optical element, quantum dot technology, applied in optics, nonlinear optics, instruments, etc., can solve the problems of easily damaged quantum dot glass tubes and low light output efficiency, and achieve the effect of avoiding easy breakage
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no. 1 approach
[0024] see figure 1 , according to the first embodiment of the present invention, the quantum dot optical element 100 includes at least one glass tube 11, a quantum dot dispersion 12 arranged inside the glass tube 11, and a transparent polymer component 13 arranged outside the glass tube, the transparent polymer The component 13 includes a light incident surface 131, a side surface 132, and a light exit surface 133 opposite to the light incident surface 131. The light incident surface 131 and the light exit surface 133 are curved along the light exit direction, and the light exit direction refers to the light exit surface 131 facing the light exit surface. 133 directions.
[0025] The main function of the transparent polymer part being arranged outside the glass tube is to prevent the glass tube from being damaged by external impact, and through the fixation and dispersion of the transparent polymer part to the glass tube, multiple glass tubes can be assembled together in a pr...
Embodiment 1
[0039] The structure of the backlight module of embodiment 1 is as follows figure 2 As shown, the backlight module 200 includes a light emitting element 10 , a quantum dot optical element 20 and a light guide plate 50 , and the quantum dot optical element 20 is disposed at the light incident surface of the light guide plate 50 . The quantum dot optical element 20 includes two glass tubes 21, a quantum dot dispersion 22 inside the glass tube 21, and a transparent polymer component 23 arranged outside the glass tube. Symmetrically arranged, the distance between the two outer walls of the glass tube 21 is 1 mm, the quantum dot dispersion 32 is a mixed dispersion containing red and green quantum dots, and the light emitting element 10 is a blue LED.
Embodiment 2
[0041] The structure of the backlight module of embodiment 2 is as follows image 3 As shown, the backlight module 200 includes a light emitting element 10 , a quantum dot optical element 30 and a light guide plate 50 , and the quantum dot optical element 30 is disposed at the light incident surface of the light guide plate 50 . The quantum dot optical element 30 includes two glass tubes 31, a quantum dot dispersion 32 inside the glass tube 31, and a transparent polymer component 33 arranged outside the glass tube. The two glass tubes 31 are centered on the symmetrical plane along the axial direction. Symmetrically arranged and tangential, the wall thickness of the glass tube is 0.5 mm, the quantum dot dispersion 32 is a mixed dispersion containing red and green quantum dots, and the light emitting element 10 is a blue LED.
PUM
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