Liquid crystal display driving with switching transistors
    1.
    发明授权
    Liquid crystal display driving with switching transistors 失效
    液晶显示器用开关晶体管驱动

    公开(公告)号:US4651148A

    公开(公告)日:1987-03-17

    申请号:US647752

    申请日:1984-09-06

    IPC分类号: G02F1/1335 G09G3/36

    摘要: A matrix liquid crystal display device provided with switching transistors, made of amorphous silicon thin-film for example, which are connected to each display picture element. The switching transistors are scanned with a scan pulse having width H which is set at a value greater than that is expressed by T/N, where H denotes the scan pulse width applied to row electrodes connected to each gate of the switching transistor, T denotes the total scan time and N the number of the scan lines. Concretely, the timewise width of the scan pulses is expanded or the number of applicable scan pulses is increased. The preferred embodiments relate to such a liquid crystal display driving system that can effectively minimize the decline of the voltage and the display characteristics caused by insufficient charge against the display picture element electrodes via the switching transistors. In particular, the driving method embodied by the present invention is extremely useful for driving a large-capacity X-Y matrix liquid crystal display device.

    摘要翻译: 一种矩阵液晶显示装置,其设置有例如与各显示图像元素连接的由非晶硅薄膜构成的开关晶体管。 用宽度为H的扫描脉冲扫描开关晶体管,该扫描脉冲设定为大于由T / N表示的值,其中H表示施加到连接到开关晶体管的每个栅极的行电极的扫描脉冲宽度,T表示 总扫描时间和N个扫描线数。 具体地,扫描脉冲的时间宽度被扩大或适用的扫描脉冲的数量增加。 优选实施例涉及这样的液晶显示驱动系统,其可以有效地最小化通过开关晶体管对显示图像元素电极的电荷不足引起的电压下降和显示特性的降低。 特别地,本发明具体实施的驱动方法对于驱动大容量X-Y矩阵型液晶显示装置非常有用。

    Lighting apparatus
    2.
    发明授权
    Lighting apparatus 失效
    照明设备

    公开(公告)号:US4706173A

    公开(公告)日:1987-11-10

    申请号:US831258

    申请日:1986-02-20

    IPC分类号: F21V7/00 F21V7/09 F21V8/00

    摘要: A lighting apparatus including a tubular light source and a member having a plurality of reflective surfaces which are angularly set such that light from the light source is reflected in a predetermined direction of a viewing angle by each of the reflective surfaces. A ratio of an apparent width of each of the reflective surfaces to an apparent interval of adjacent ones of the reflective surfaces, when viewed from the predetermined direction of the viewing angle, is so set as to be a function of a distance between the light source and each of the reflective surfaces.

    摘要翻译: 一种照明装置,包括管状光源和具有多个反射表面的部件,所述多个反射表面被成角度地设置成使得来自光源的光通过每个反射表面沿预定的视角方向反射。 当从视角的预定方向观察时,每个反射表面的视在宽度与相邻的反射表面的表观间隔的比率被设定为光源之间的距离的函数 和每个反射表面。

    Lighting device
    4.
    发明授权
    Lighting device 失效
    照明设备

    公开(公告)号:US4914553A

    公开(公告)日:1990-04-03

    申请号:US249222

    申请日:1988-09-22

    CPC分类号: G02B6/0048

    摘要: The lighting device is equipped with a light guide having a linear Fresnel reflection surface consisting of steps of continuously alternating reflecting surfaces having two different reflection angles. A light source is installed at one end of the light guide of the above construction so that the light from the light source is emitted from the irradiation surface of the light guide after being reflected by the linear Fresnel reflection surface.

    摘要翻译: 照明装置配备有具有线性菲涅尔反射面的导光体,该反射面由具有两个不同反射角度的连续交替反射面的步骤组成。 光源安装在上述结构的光导的一端,使得来自光源的光在被线性菲涅耳反射面反射之后从导光体的照射面发射。

    Uniform coloration control in an electrochromic display of the segmented
type
    7.
    发明授权
    Uniform coloration control in an electrochromic display of the segmented type 失效
    分段式电致变色显示中的均匀着色控制

    公开(公告)号:US4210907A

    公开(公告)日:1980-07-01

    申请号:US893513

    申请日:1978-04-04

    CPC分类号: G09G3/16

    摘要: A driving system is provided for an electrochromic display device in which the coloration state is maintained for several hours through several days of the removal of the coloration voltage as long as the electrochromic display device is held in an electrically opened state. The electrochromic display device includes a predetermined number of display segments, each of the combinations of the display segments defining a different one of the desired display patterns. The display segments placed in the coloration state are electrically connected to each other during the memory period in order to uniform the coloration degree of each of the selected display segments. In a preferred form, a detection means is provided for detecting the potential of the selected display segments, which are held in the memory coloration state. The write-in, or, coloration operation is again conducted when the potential of the selected display segments becomes higher than a preselected level.

    摘要翻译: 为电致变色显示装置提供一种驱动系统,其中只要电致变色显示装置保持在电打开状态,着色状态就可以在去除着色电压的几天内保持几个小时。 电致变色显示装置包括预定数量的显示段,显示区段的每个组合限定所需显示图案中的不同的一个。 放置在着色状态的显示段在存储期间彼此电连接,以便使所选择的显示段中的每一个的着色程度均匀。 在优选形式中,提供检测装置,用于检测保持在存储器着色状态中的所选择的显示段的电位。 当所选择的显示段的电位变得高于预选电平时,再次进行写入或着色操作。

    Charge transfer type electrochromic display devices
    8.
    发明授权
    Charge transfer type electrochromic display devices 失效
    电荷转移型电致变色显示装置

    公开(公告)号:US4420749A

    公开(公告)日:1983-12-13

    申请号:US276970

    申请日:1981-06-24

    IPC分类号: G02F1/163 G09G3/16 G09G3/19

    CPC分类号: G09G3/16 G02F1/163

    摘要: An electrochromic display device is characterized by comprising a counter electrode, opposed to a plurality of display segmented electrodes, for absorbing a charge present in some colored display segments. Thereafter, the counter electrode provides a refreshing charge to said some segments from which charge has been taken off. A total amount of charge, defined as the amount of charge necessary for coloring all the display electrodes, is kept constant by refreshing.

    摘要翻译: 电致变色显示装置的特征在于包括与多个显示分段电极相对的对电极,用于吸收一些彩色显示段中存在的电荷。 此后,对电极向已经取出电荷的所述一些段提供刷新电荷。 定义为使所有显示电极着色所需的电荷量的总量通过刷新保持恒定。

    Electrochromic display devices
    9.
    发明授权
    Electrochromic display devices 失效
    电致变色显示装置

    公开(公告)号:US4399436A

    公开(公告)日:1983-08-16

    申请号:US268410

    申请日:1981-05-29

    CPC分类号: G09G3/16

    摘要: An electrochromic display device comprises a plurality of display segmented electrodes and first additional electrodes, a layer of an electrochromic material in contact with each of the display segmented electrodes and the first additional electrodes, a first connecting circuit for selectively connecting each of the display segmented electrodes into one of two groups, depending on a display pattern to be indicated, a counting circuit for counting the electrodes and determining the difference in display area between the two groups of display segmented electrodes, a circuit responsive to the difference in display area for connecting each of the first additional electrodes into one of the two groups of the display segmented electrodes, a power supply for supplying power to each of the two groups of the first additional electrodes and the display segmented electrodes, and a second additional electrode for keeping the total amount of charge for coloring all the display electrodes constant.

    摘要翻译: 电致变色显示装置包括多个显示分段电极和第一附加电极,与每个显示分段电极和第一附加电极接触的电致变色材料层,用于选择性地连接每个显示分段电极的第一连接电路 根据要指示的显示图案,根据要指示的显示图案,计数电路并确定两组显示分段电极之间的显示区域的差异的计数电路,响应于显示区域的差异的电路,用于连接每个 的第一附加电极分成两组显示分段电极中的一组,用于向两组第一附加电极和显示器分段电极中的每一组供电的电源和用于保持总量的第二附加电极 的所有显示电极着色恒定。

    Complete bleaching of non-selected display electrodes in an
electrochromic display drive
    10.
    发明授权
    Complete bleaching of non-selected display electrodes in an electrochromic display drive 失效
    在电致变色显示驱动器中完全漂白未选择的显示电极

    公开(公告)号:US4210909A

    公开(公告)日:1980-07-01

    申请号:US896591

    申请日:1978-04-14

    CPC分类号: G02F1/163 G09G3/16

    摘要: A driving system is provided for an electrochromic display device in which the coloration state is maintained for several hours through several days of the removal of the coloration voltage as long as the electrochromic display device is held in an electrically opened state. The coloration voltage is applied to a display electrode for a predetermined period of time in order to color the display electrode. When the display electrode is desired to be bleached, the bleaching voltage is continuously applied to the display electrode. That is, the application of the bleaching voltage is maintained for a period of time during which the display electrode is placed in the bleached state. The non-selected display electrodes (those not selected for coloration) are also continuously bleached until these non-selected display electrodes are selected for coloration.

    摘要翻译: 为电致变色显示装置提供一种驱动系统,其中只要电致变色显示装置保持在电打开状态,着色状态就可以在去除着色电压的几天内保持几个小时。 为了使显示电极着色,将着色电压施加到显示电极一段预定的时间。 当显示电极需要漂白时,漂白电压被连续施加到显示电极。 也就是说,将漂白电压的施加保持在显示电极处于漂白状态的时间段内。 未选择的显示电极(未被选择用于着色的显示电极)也被连续漂白,直到选择这些未选择的显示电极进行着色。