Method of recycling cholesteric liquid crystal
    5.
    发明授权
    Method of recycling cholesteric liquid crystal 有权
    回收胆固醇液晶的方法

    公开(公告)号:US08673175B2

    公开(公告)日:2014-03-18

    申请号:US13523711

    申请日:2012-06-14

    IPC分类号: C09K19/02 C09K19/52 C09K19/54

    CPC分类号: C09K19/544

    摘要: A method of recycling a cholesteric liquid crystal is provided. The method includes providing a display medium material containing a micro-encapsulated cholesteric liquid crystal. The display medium material is mixed with a hydrophilic solvent to form a mixture having a temperature of between 70° C. and 100° C. Then, a hydrophobic solvent is added to mix with the hydrophilic solvent. The display medium material, the hydrophobic solvent and the hydrophilic solvent are mixed to form a mixture having a hydrophobic layer and a hydrophilic layer. The hydrophobic layer and the hydrophilic layer of the mixture are separated, wherein the hydrophobic layer contains a cholesteric liquid crystal and the hydrophobic solvent. Then, the hydrophobic solvent is removed from the hydrophobic layer to obtain the cholesteric liquid crystal.

    摘要翻译: 提供了一种循环胆甾型液晶的方法。 该方法包括提供含有微胶囊化胆甾型液晶的显示介质材料。 将显示介质材料与亲水性溶剂混合以形成温度为70℃至100℃的混合物。然后加入疏水性溶剂以与亲水性溶剂混合。 将显示介质材料,疏水性溶剂和亲水性溶剂混合以形成具有疏水层和亲水层的混合物。 分离疏水层和亲水层,其中疏水层含有胆甾型液晶和疏水性溶剂。 然后,从疏水层除去疏水性溶剂,得到胆甾型液晶。

    Contrast control for display device
    10.
    发明授权
    Contrast control for display device 有权
    显示设备对比度控制

    公开(公告)号:US08976192B2

    公开(公告)日:2015-03-10

    申请号:US13178106

    申请日:2011-07-07

    IPC分类号: G09G3/30 G09G5/02 G09G3/34

    摘要: A contrast control device is provided. The device of the invention includes a detecting unit, a judging unit, a backlight control unit, a gain generating unit and a contrast gain processing unit. The detecting unit calculates an average value and detects a maximum value of a current image. The judging unit generates a gain index and a brightness index according to the average value. The backlight control unit generates a backlight control signal according to the brightness index. The gain generating unit generates a first contrast gain value and a soft-clamping gain value according to the gain index, the average value and the maximum value and then selects one from the first contrast gain value and the soft-clamping gain value for output as a second contrast gain value according to an input pixel value of the current image. The contrast gain processing unit generates an output pixel value according to the second contrast gain value and the input pixel value.

    摘要翻译: 提供对比度控制装置。 本发明的装置包括检测单元,判断单元,背光控制单元,增益生成单元和对比度增益处理单元。 检测单元计算平均值并检测当前图像的最大值。 判断单元根据平均值生成增益指标和亮度指标。 背光控制单元根据亮度指标生成背光控制信号。 增益产生单元根据增益指数,平均值和最大值产生第一对比度增益值和软钳位增益值,然后从第一对比增益值和软钳位增益值中选择一个作为输出, 根据当前图像的输入像素值的第二对比度增益值。 对比增益处理单元根据第二对比度增益值和输入像素值生成输出像素值。