Projection type image displaying apparatus
    1.
    发明授权
    Projection type image displaying apparatus 失效
    投影型图像显示装置

    公开(公告)号:US5990853A

    公开(公告)日:1999-11-23

    申请号:US875198

    申请日:1997-11-17

    IPC分类号: G02F1/13 G02F1/135 G09G3/00

    摘要: The present invention relates to a projection type image displaying apparatus capable of displaying larger picture images which are bright, uniform and after-image-free.A projection type image displaying apparatus, comprising a OASLM (1) for grasping an photoconductive layer (4), a light reflection layer (5) and a light modulating layer (6) by two glass substrates (2, 2') with conductive transparent electrodes (3, 3') each being provided on it, an image source (8) for displaying inputting images on the OASLM (1) by a time serial scanning operation, a driving signal generating means (40) for supplying to the OASLM (1) a driving signal synchronized with the vertical synchronous frequency of the image,wherein at least either of two conductive transparent electrodes (3, 3') is divided into a plurality of regions, a driving signal to be generated from the driving signal generating means (40) is composed of a plurality of signals different in phase, a signal to be fed respectively to a region adjacent to the divided conductive transparent electrodes (3) has a phase difference approximately equal to time where the vertical effective scanning period is divided by the number of the region.

    摘要翻译: PCT No.PCT / JP96 / 03140 Sec。 371日期:1997年11月17日 102(e)日期1997年11月17日PCT 1996年10月28日PCT公布。 公开号WO97 / 15862 日期:1997年5月1日本发明涉及能够显示较亮,均匀,无图像后的较大图像的投影型图像显示装置。 一种投影型图像显示装置,包括用于抓取光电导层(4)的OASLM(1),具有导电透明的两个玻璃基板(2,2')的光反射层(5)和光转换层(6) 每个设置在其上的电极(3,3'),用于通过时间串行扫描操作在OASLM(1)上显示输入图像的图像源(8),用于提供给OASLM的驱动信号发生装置(40) 1)与图像的垂直同步频率同步的驱动信号,其中两个导电透明电极(3,3')中的至少一个被分成多个区域,从驱动信号产生装置产生的驱动信号 (40)由相位不同的多个信号组成,分别馈送到与分割的导电透明电极(3)相邻的区域的信号具有大约等于垂直有效扫描周期被分割的时间的相位差 根据该地区的数量。

    Video display device
    2.
    发明授权
    Video display device 失效
    视频显示设备

    公开(公告)号:US5847778A

    公开(公告)日:1998-12-08

    申请号:US675185

    申请日:1996-07-03

    IPC分类号: H04N5/74 H04N9/12 H04N9/16

    CPC分类号: H04N5/7441

    摘要: In a projection type video display device comprising a light writing type spacial light modulator, disturbances brought about by a resetting pulse and appearing in a projected picture as a black belt or beat are prevented. This is accomplished by causing the resetting pulse, which is to withdraw electric charges produced by incoming writing light and accumulated in spacial light modulator, to occur within a vertical blanking period synchronized with vertical synchronization signal. Further, by changing the pulse width and the voltage of the resetting pulse in accordance with vertical synchronization frequency, pictures of a certain fixed brightness are made available against various vertical synchronization frequencies; and even with a high vertical synchronization frequency, projected pictures are never annoyed by such disturbance that is caused by a resetting pulse dislocated out of the vertical blanking period. Further, by controlling the adjustments of the writing voltage to be applied to the spacial light modulator during the writing period and the resetting voltage to be applied to the spacial light modulator during the resetting period, the spread in characteristics of the spacial light modulator is compensated to provide a certain fixed contrast and .gamma. characteristic. Furthermore, in a video display device for full-color display, writing voltage and resetting voltage can be established independently corresponding to the respective three RGB primary colors, video outputs of any desired color temperature are obtainable by adjusting the balance of light emission among the three RGB colors.

    摘要翻译: 在包括光写型空间光调制器的投影型视频显示装置中,防止由复位脉冲引起的干扰并出现在投影图像中作为黑带或拍子。 这是通过使垂直同步信号同步的垂直消隐周期内产生复位脉冲,该脉冲是由进入的写入光产生的积累的空间光调制器中产生的电荷。 此外,通过根据垂直同步频率改变复位脉冲的脉冲宽度和电压,可以针对各种垂直同步频率获得某个固定亮度的图像; 并且即使具有高的垂直同步频率,投影图像也不会因由在垂直消隐期间脱离的复位脉冲引起的这种干扰而烦恼。 此外,通过控制在写入周期期间施加到空间光调制器的写入电压的调整和在复位周期期间施加到空间光调制器的复位电压,对空间光调制器的特性扩展进行补偿 提供一定的固定对比度和伽马特性。 此外,在用于全色显示的视频显示装置中,可以独立地对应于三个RGB原色独立地建立写入电压和复位电压,任何期望的色温的视频输出可以通过调节三者之间的发光平衡来获得 RGB颜色。

    Plasma display panel drive method
    3.
    发明授权
    Plasma display panel drive method 失效
    等离子显示屏驱动方式

    公开(公告)号:US07342558B2

    公开(公告)日:2008-03-11

    申请号:US10515594

    申请日:2004-03-23

    IPC分类号: G09G3/28

    摘要: The initializing period of at least one of a plurality of sub-fields constituting one field is a selective initializing period for selectively initializing discharge cells in which a sustain discharge has occurred in the sustaining period of the preceding sub-field. In the sustaining period of the sub-field prior to the sub-field including the selective initializing period, voltage Vr is applied to a priming electrode (PRi) for causing a discharge between the priming electrode (PRi) and corresponding scan electrode (SCi) using the priming electrode (PRi) as a cathode.

    摘要翻译: 构成一个场的多个子场中的至少一个的初始化周期是用于选择性地初始化在先前子场的维持周期中发生了维持放电的放电单元的选择性初始化周期。 在包括选择性初始化周期的子场之前的子场的维持周期中,将电压Vr施加到用于引发电极(PRi)和相应的扫描电极(SCi)之间的放电的底漆电极(PRi) 使用底漆电极(PRi)作为阴极。

    Video signal conversion device and video signal conversion method
    5.
    发明授权
    Video signal conversion device and video signal conversion method 失效
    视频信号转换装置和视频信号转换方法

    公开(公告)号:US06876395B1

    公开(公告)日:2005-04-05

    申请号:US09889585

    申请日:2000-11-24

    摘要: Video data of a field necessary for I/P conversion and scanning line conversion is stored in a field memory part (7), vertical frequency conversion is performed by a memory control processing part (2), I/P conversion is performed by an I/P conversion processing part (3), scanning line conversion is performed by a scanning line conversion part (4) and horizontal pixel conversion is performed by a horizontal pixel conversion processing part (5) with the data stored in the field memory part, and a synchronous processing part (6) supplies a prescribed clock, a horizontal synchronizing signal and a vertical synchronizing signal to each block. A single system performs vertical frequency conversion, I/P conversion, scanning line conversion and horizontal pixel conversion.

    摘要翻译: I / P转换和扫描线转换所需的场的视频数据被存储在场存储器部分(7)中,由存储器控制处理部分(2)执行垂直频率转换,I / P转换由I / P转换处理部分(3)中,通过扫描线转换部分(4)执行扫描线转换,并且通过水平像素转换处理部分(5)对存储在场存储器部分中的数据执行水平像素转换,以及 同步处理部分(6)向每个块提供规定的时钟,水平同步信号和垂直同步信号。 单个系统执行垂直变频,I / P转换,扫描线转换和水平像素转换。