A directional optical waveguide, a directional backlight module and a display device
A directional backlight and optical waveguide technology, which is applied in the field of directional backlight modules, display devices, and directional optical waveguides, can solve the problems of lowering the resolution of display physical pixels and the like
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Embodiment 1
[0024] An embodiment of the present invention provides a directional optical waveguide, such as Figure 1-Figure 4 As shown, the directional optical waveguide 1 includes such as Figure 4 The time-division multiplexing unit 3 and N layers are shown as figure 2 The shown optical waveguide 10, the optical waveguide 10 can be a common light guide plate or a light guide film, or can be other light guide media. The light emitting surface of each layer of optical waveguides 10 is provided with a pixel-type grating 10A, and the N layers of optical waveguides 10 are stacked, and the light emitting directions of the N layers of optical waveguides 10 are the same; N is an integer greater than or equal to 2;
[0025] Exemplarily, as figure 1 As shown, the directional optical waveguide 1 includes N-layer optical waveguides 10 stacked. The light exit surface of one layer of optical waveguide 111 forms the first pixel type grating 112, the light exit surface of the second optical wavegu...
Embodiment 2
[0064] see figure 1 , the embodiment of the present invention provides a directional backlight module 1, the directional backlight module 1 includes the directional light waveguide mentioned in the above-mentioned embodiments and N light sources for three-dimensional display, N light sources for three-dimensional display There is a one-to-one correspondence with N layers of optical waveguides; each light source for three-dimensional display is arranged on the side of the corresponding optical waveguide, and the N light sources for three-dimensional display are connected to the time-division multiplexing unit signal respectively.
[0065] Exemplary, such as figure 1 and Figure 4 As shown, the N light sources for three-dimensional display are respectively the first light source for three-dimensional display 110, the second grating for three-dimensional display 120, ..., the Nth light source for three-dimensional display 1N0, and as Figure 4 As shown, the first light source 1...
Embodiment 3
[0072] An embodiment of the present invention provides a display device, such as figure 1 As shown, the display device includes the directional backlight module 1 provided in Embodiment 2 and the optical switch component 2 located on the light-emitting surface of the directional backlight module. The optical switch component 2 can be a display panel or other devices capable of realizing image display optical switch components. When displaying an image, the backlight emitted by the directional backlight module 1 is adjusted by the optical switch part 2 to realize image display.
[0073] Compared with the prior art, the beneficial effect of the display device provided by the embodiment of the present invention is the same as the beneficial effect of the directional optical waveguide provided by the first embodiment, which will not be repeated here.
[0074] Wherein, the display device provided in this embodiment may be any product or component with a display function such as an...
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