High-brightness color liquid crystal display panel employing light recycling therein
    2.
    发明授权
    High-brightness color liquid crystal display panel employing light recycling therein 失效
    采用光回收的高亮度彩色液晶显示面板

    公开(公告)号:US06573961B2

    公开(公告)日:2003-06-03

    申请号:US09313124

    申请日:1999-05-17

    IPC分类号: G02F11335

    摘要: Reflective color filters using layers of cholesteric liquid crystals with two different center wavelengths and bandwidths per layer are stacked in two layers to provide colored light for displays. With a two layer stack circularly polarized light of one handedness can be provided. With a two layer stack circulary unpolarized colored light can be provided. With a broadband polarizing filter overlapping other filters in the stack a black matrix can be provided by reflecting all colors and transmitting no light in the overlapping areas. When broadband reflective cholesteric liquid crystals are used two primary colors can be reflected in the same pixel of a display making reflective layers with two reflective portions per layer possible. Color displays having three linear sub-pixels with three primary colors or with four sub-pixels of white, blue, green, and red in a pixel with two colors in a top row and two colors on a bottom row can are made with two colors per layer in two layer stacks. The pixels in the display are arranged such that multiple adjacent sub-pixels in a layer, or row in a layer, with the same color makes the color filters easier to manufacture. Displays using these reflective color filters may have a reflective polarizer for viewing the display at wide angles without color distortion.

    摘要翻译: 使用每层具有两个不同中心波长和带宽的胆甾型液晶层的反射滤色器层叠在两层中,以提供用于显示器的彩色光。 可以提供双层堆叠,可以提供单手性的圆偏振光。 可以提供两层堆叠的循环非偏光色光。 通过与堆叠中的其他滤光片重叠的宽带偏振滤光片,可以通过反射所有颜色并且在重叠区域中不传输光来提供黑矩阵。 当使用宽带反射胆甾型液晶时,可以在显示器的相同像素中反射原色,从而可以使每层具有两个反射部分的反射层。 具有三原色的三个线性子像素或具有白色,蓝色,绿色和红色的四个子像素的彩色显示器,其具有顶行中的两种颜色和底行上的两种颜色的两个颜色可以用两种颜色 每层在两层堆叠。 显示器中的像素被布置成使得具有相同颜色的层中的层或行中的多个相邻子像素使得滤色器更容易制造。 使用这些反射滤色器的显示器可以具有反射型偏振器,用于在广角下观看显示器而没有颜色失真。