发明名称 METHOD AND DEVICE FOR ENHANCING THE VISUAL CONTRAST IN MATRIX LIQUID CRYSTAL DISPLAYS
摘要 <p>In a matrix liquid crystal display, the visual contrast of the individual image points (= pixels) is enhanced by illuminating or exposing to illumination the pixel lines (2) successively in groups at least during part of the time in which they show maximum contrast. Addressing of the illumination is adapted to the duration and phase of addressing of the individual pixel lines. Strip-wise illumination of the pixel lines can be effected, for example, by using strip-shaped light sources (4) or a second liquid crystal system which can either have a strip structure or be composed of strips and acts like a stepwise moving slot.</p>
申请公布号 WO1987007395(A1) 申请公布日期 1987.12.03
申请号 US1987001214 申请日期 1987.05.20
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