Quantum dot light-emitting device packaging piece, backlight module and liquid crystal display device
A technology of quantum dot light-emitting and light-emitting devices, which is applied in optics, electrical components, nonlinear optics, etc., can solve the problems of inconsistent color of emitted light and small light-emitting angle, avoiding local color cast, large light-emitting angle, and uniform intensity. Effect
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Embodiment 1
[0034] image 3 A schematic structural diagram of a quantum dot light-emitting device package is provided for Embodiment 1 of the present invention, as shown in image 3 As shown, a quantum dot light-emitting device package 500 can be used as a light source for a backlight in a backlight module, and can be used alone as a lighting source, including:
[0035] The circuit board 51 is arranged to provide a power circuit for the quantum dot light emitting device package 500 .
[0036] The light emitting device 52 is arranged on the circuit board 51 to generate excitation light. Wherein, the light emitting device 52 may be a light emitting diode (LED) chip, such as a GaN-based LED chip that emits blue light. And the wavelength conversion layer 54 and the diffusion particle layer 53 are packaged around the light emitting device 52 .
[0037] The wavelength conversion layer 54 is formed on the periphery of the light emitting device 52, and the shortest distance between the wavelen...
Embodiment 2
[0054] Figure 4 A schematic structural diagram of a quantum dot light-emitting device package is provided in Embodiment 2 of the present invention, as shown in Figure 4 As shown, a quantum dot light-emitting device package 600 can be used as a light source for a backlight source in a backlight module, and can be used alone as a lighting source.
[0055] The quantum dot light-emitting device package 600 provided in the second embodiment includes: the circuit board 61 and the light-emitting device 62 are the same as those in the first embodiment, and will not be repeated here.
[0056] The quantum dot light emitting device package 600 further includes:
[0057] The sealing member 65 is a lens whose inner and outer surfaces form arc surfaces, the outer surface protruding outward is the light-emitting surface, the inner surface relative to the outer surface is concave, the inner surface is the light-incident surface, and a lens is formed between the inner surface and the outer ...
Embodiment 3
[0062] The third embodiment provides a direct type backlight module, which uses a quantum dot light source device to provide a light source.
[0063] Figure 5 It is a structural schematic diagram of a direct type backlight module in the third embodiment, as Figure 5 As shown, the direct type backlight module 10 includes:
[0064] The fixing part 12 is used for assembling the direct type backlight module 10 together, such as connecting parts such as a backplane and a plastic frame.
[0065] The quantum dot light source device 11 is arranged on the fixing part 12 and is located directly below the direct type backlight module 10. The quantum dot light source device 11 is the quantum dot light emitting device package 500 in the first embodiment or the quantum dot light emitting device in the second embodiment package 600 .
[0066] The homogenizing optical component 13 is used for homogenizing the light source provided by the quantum dot light source device 11 .
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