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    • 1. 发明授权
    • Display device comprising a liquid crystal cell with light valves
    • 显示装置包括具有光阀的液晶单元
    • US4240711A
    • 1980-12-23
    • US877366
    • 1978-02-13
    • Gunter BaurWaldemar GreubelHans KrugerAlois Schauer
    • Gunter BaurWaldemar GreubelHans KrugerAlois Schauer
    • H01J65/08F21K2/00G02F1/1335G02F1/13357G02F1/139G09F9/00G02F1/133
    • G02F1/133617F21K2/00G02F1/13725
    • A display device having a liquid crystal cell containing a medium, which can be switched zone-wise between at least two different optical states to form a light valve, a light trap in the form of a plate-shaped body disposed behind the liquid crystal cell when taken in a direction of observation of the device, the plate-shaped body having a material with an index of refraction greater than 1, containing fluorescent particles, and possessing a light emergent or outlet window at the rear of each switchable zone of the liquid crystal cell characterized by the light emergent or outlet windows comprising a groove in the plate and a light scattering surface disposed between the groove and the medium of the liquid crystal cell. Preferably, the grooves of each of the windows is disposed in a rear surface or side of the fluorescent plate and the scattering surface is arranged on a front surface of the plate and can either be formed by a pigment layer which has been silk screened on the front surface or a rough surface zone which has been embossed on the front surface.
    • 一种显示装置,具有含有介质的液晶单元,其能够在至少两种不同的光学状态之间切换以形成光阀;设置在液晶单元后面的板状体形式的光阱 当沿装置的观察方向观察时,板状体具有折射率大于1的材料,其含有荧光颗粒,并且在液体的每个可切换区域的后部具有出光窗或出口窗 特征在于包括板中的凹槽的光出射窗口和设置在液晶单元的槽和介质之间的光散射表面的晶体单元。 优选地,每个窗口的凹槽设置在荧光板的后表面或侧面,并且散射表面布置在板的前表面上,并且可以由已经丝网印刷的颜料层形成 前表面或已经在前表面上压花的粗糙表面区域。
    • 2. 发明授权
    • Display device comprising a light valve unit in conjunction with the
fluorescent plate
    • 显示装置包括与荧光板结合的光阀单元
    • US4235527A
    • 1980-11-25
    • US14537
    • 1979-02-23
    • Waldemar GreubelHans Kruger
    • Waldemar GreubelHans Kruger
    • G09F9/00G02F1/1335G02F1/13357G02F1/133
    • G02F1/133617
    • An improved display device having a light valve unit or display and a fluorescent plate characterized by a frame member for holding the light valve unit and fluorescent plate with the exit windows of the fluorescent plate being aligned with the switchable zones of the light valve unit. Preferably, the frame member will pass light which will excite the fluorescent particles of the fluorescent plate but will not allow passage of the fluorescent light so that a high contrast of the display can be obtained. The frame, which is preferably molded of synthetic plastic, can contain fluorescent particles, which emit light at a frequency range that does not impair the optical contrast of the display and which can be utilized to charge a battery for an auxiliary illumination device.
    • 一种具有光阀单元或显示器和荧光板的改进的显示装置,其特征在于用于保持所述光阀单元和荧光板的框架构件,所述荧光板的出射窗口与所述光阀单元的可切换区域对准。 优选地,框架构件将通过将激发荧光板的荧光颗粒的光,但不允许荧光灯通过,从而可以获得显示器的高对比度。 优选由合成塑料模制的框架可以包含在不损害显示器的光学对比度的频率范围内发光并且可用于为辅助照明装置的电池充电的荧光颗粒。
    • 5. 发明授权
    • Process for making 5-amino-1,2,3-thiadiazoles
    • 制备5-氨基-1,2,3-噻二唑的方法
    • US4113733A
    • 1978-09-12
    • US823526
    • 1977-08-09
    • Hans Kruger
    • Hans Kruger
    • A01N43/82C07D285/06
    • C07D285/06A01N43/82
    • 5-amino-1,2,3-thiadiazoles of the formula ##STR1## are made by reacting halogenoacetaldehydes of the formulaX--CH.sub.2 --CH.dbd.O IIwith hydrazine derivatives of the formulaH.sub.2 N--NH--COR IIIpreferably in an aqueous medium or in a mixture of an aqueous medium with organic solvents so as to form acylhydrazones of the formulaX--CH.sub.2 --CH.dbd.N--CH--CO--R IVwhereupon the latter are reacted with thionylchloride of the formulaSOCl.sub.2 Vwhereby 5-halogeno-1,2,3-thiadiazoles are formed which are then reacted with ammonia preferably in the presence of a catalyst such as a mineral acid or Lewis acid whereby the desired product is obtained. The products are useful in making plant protection agents and herbicides such as the 1,2,3-thiadiazolyl-urea derivatives.
    • 式X 1的5-氨基-1,2,3-噻二唑通过式X-CH 2 -CH = O II的卤代乙醛与式H2N-NH-COR III的肼衍生物反应,优选在水 介质或水性介质与有机溶剂的混合物中,以便形成式X-CH 2 -CH = N-CH-CO-R IV的酰腙,随后将其与式SOCl 2 V的亚硫酰氯反应,由此得到5-卤代 形成-1,2,3-噻二唑,然后与氨反应,优选在无机酸或路易斯酸等催化剂存在下反应,得到所需产物。 该产品可用于制备植物保护剂和除草剂如1,2,3-噻二唑基 - 脲衍生物。