Liquid crystal display device with masked images
    1.
    发明授权
    Liquid crystal display device with masked images 失效
    具有屏蔽图像的液晶显示装置

    公开(公告)号:US5920364A

    公开(公告)日:1999-07-06

    申请号:US130785

    申请日:1998-08-07

    摘要: A cholesteric liquid crystal display device with improved display images is provided. The device includes a transparent front plate (16) with a front conductive film (18) spaced apart from a back conductive film (22) by a gap filled with cholesteric liquid crystal material (24) which can be switched between a transparent state and a reflective state through application of an electric field. The front conductive film (18) is coated with an opaque mask which defines openings (36) for transmitting light. In the reflective state, ambient light entering the device (10) is reflected by the cholesteric liquid crystal (24) through openings (36) in the opaque mask (12) to form a bright image. In the transparent state, ambient light entering the device (10) passes through the cholesteric liquid crystal (24), front film (18) and back film (22) and is substantially absorbed by an underlying opaque layer (14) which is preferably color-matched to the internal mask (12) to form an single color, image-free display area.

    摘要翻译: 提供了具有改进的显示图像的胆甾型液晶显示装置。 该装置包括透明的前板(16),其具有通过填充有胆甾型液晶材料(24)的间隙与背导电膜(22)间隔开的前导电膜(18),所述间隙可以在透明状态和 通过应用电场的反射状态。 前导电膜(18)涂覆有不透明掩模,其限定用于透射光的开口(36)。 在反射状态下,进入设备(10)的环境光被胆甾型液晶(24)通过不透明掩模(12)中的开口(36)反射,以形成明亮的图像。 在透明状态下,进入设备(10)的环境光通过胆甾型液晶(24),前膜(18)和背膜(22),并且基本上被下面的不透明层(14) - 匹配到内部掩模(12)以形成单色,无图像的显示区域。

    Display with aligned optical shutter and backlight cells applicable for use with a touchscreen
    2.
    发明授权
    Display with aligned optical shutter and backlight cells applicable for use with a touchscreen 失效
    显示适用于触摸屏的对准光学快门和背光单元

    公开(公告)号:US06842170B1

    公开(公告)日:2005-01-11

    申请号:US09271634

    申请日:1999-03-17

    摘要: A display (200) with aligned optical shutter and backlight cells (239, 289) uses a patterned polymer-dispersed liquid crystal (PDLC) optical shutter material (230) and an electroluminescent (EL) backlight material (280) to provide a low-cost, low-current-drain display having good contrast in both bright-light and low-light conditions. The aligned, patterned optical shutter and backlight layers form pixel “windows” through which images printed on a background can be hidden or revealed. Specifically, a mask layer (250) bears the images and is inserted between the optical shutter and the backlight layers to show information images, cover inactive areas of the display, and cover electrode traces connecting active segments of the display. The display (200) is thin and flexible enough to be integrated with a touchscreen (290).

    摘要翻译: 具有对准的光学快门和背光单元(239,289)的显示器(200)使用图案化聚合物分散液晶(PDLC)光学快门材料(230)和电致发光(EL)背光材料(280) 在亮光和低光条件下都具有良好的对比度的低成本,低电流 - 漏极显示。 对准的,图案化的光学快门和背光层形成像素“窗口”,通过该像素“窗口”可以隐藏或揭示在背景上打印的图像。 具体地,掩模层(250)承载图像并且插入在光学快门和背光层之间以显示信息图像,覆盖显示器的无效区域,以及覆盖连接显示器的有效段的电极迹线。 显示器(200)薄且足够灵活以与触摸屏(290)集成。