Optical holographic reflecting element, transmission type LCD (Liquid Crystal Display) containing same, and semi-reflecting semi-transparent type LCD containing same
A reflective element and holographic technology, applied in the field of LCD backlight materials, can solve problems such as unsatisfactory backlight efficiency, and achieve the effects of improving light use efficiency, brightness and contrast.
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Embodiment 1
[0026] Such as figure 1 As shown, a transmissive LCD includes a backlight material part and a liquid crystal panel part, followed by a metal reflective film 1, an optical holographic reflective element 2, an optical waveguide plate 3, a light diffusion film 4, and a prism brightness enhancement film from the back to the front. 5. Reflective polarizer 6, polarizer I7, glass plate I8, ITO electrode (lower) 9, liquid crystal molecule 10, ITO electrode (upper) 11, glass plate II12, color filter 13, polarizer II14.
[0027] The optical holographic reflective element 2 includes a holographic film material layer 18 , an optical adhesive layer 16 , and a substrate material layer 17 . The holographic film material layer 18 is bonded to the substrate material layer 17 through the optical adhesive layer 16 . The holographic film material layer is a material layer with light diffraction performance obtained by using two beams of coherent plane light incident from both sides of the photopo...
Embodiment 2
[0036] A semi-reflective and transflective LCD, including the front liquid crystal panel part and the backlight material part behind it, from the back to the front are the metal reflection film 1, the optical holographic reflection element 2, the optical waveguide plate 3, and the light diffusion film 4 , prism brightness enhancement film 5, reflective polarizer 6, semi-reflective and semi-transparent film material layer or holographic optical element 15 described in CN1116003A, polarizer I7, glass plate I8, ITO electrode (bottom) 9, liquid crystal molecules 10, ITO electrode (top) 11, glass plate II12, color filter 13, polarizer II14.
[0037] The optical holographic reflection element 2 includes a holographic film material layer 18 , an optical adhesive layer 16 , and a substrate material layer 17 , and the holographic film material layer 18 is bonded to the substrate material layer 17 through the optical adhesive layer 16 . The holographic film material layer is a material ...
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