| 摘要 |
PROBLEM TO BE SOLVED: To provide a lightweight and thin type optical element of low costs capable of controlling a light direction while suppressing reduction of luminance and to provide a display device. SOLUTION: The optical element (light controlling element) 11 has first regions 14 patterned between a pair of transparent base materials 12 ans 13 and composed of a light transmissible material and second regions 15 disposed between the first regions and comprising a liquid crystal material by which a light transmitting state and a light scattering or absorbing state can be selectively switched. The optical element 11 is used as e.g. the light controlling element adjusting a visual field angle of a liquid crystal display and enables electric switching of wide and narrow visual field angles by the light transmitting state and the light scattering or absorbing state of the second regions 15. The luminance in the front direction especially in a narrow visual field angle mode is heightened and high definition of an image is attained by making the width W1 of the first regions 14 wider than the width W2 of the second regions 15. COPYRIGHT: (C)2007,JPO&INPIT
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