Liquid crystal projector having phase difference means with inclined angle
    2.
    发明授权
    Liquid crystal projector having phase difference means with inclined angle 有权
    具有倾斜角度的相位差装置的液晶投影仪

    公开(公告)号:US06556266B1

    公开(公告)日:2003-04-29

    申请号:US09624663

    申请日:2000-07-25

    Abstract: A liquid crystal projector providing an image having a high luminance and excellent contrast, including a polarization plate which is arranged at an incident side of a liquid crystal panel and transmits a first polarized beam therethrough, a polarization plate which is arranged at an exit side of the liquid crystal panel and transmits an optically modulated second polarized beam therethrough and outputs the same to a projection lens, and a phase difference film having one of a phase delay axis or a phase forward axis which is orthogonal to the polarization axis of the polarization plate and arranged inclined at a predetermined angle about an axis of rotation comprising an axis parallel to the polarization axis of the polarization plate in the plane in which said phase delay axis or phase forward axis is formed.

    Abstract translation: 一种提供具有高亮度和优异对比度的图像的液晶投影仪,包括布置在液晶面板的入射侧并透射第一偏振光束的偏振板,偏振板布置在其出射侧 液晶面板,透射光调制的第二偏振光束并将其输出到投影透镜,并且具有与偏振板的偏振轴正交的相位延迟轴或相位正向轴中的一个的相位差膜 并且围绕包括形成所述相位延迟轴或相位前进轴的平面中的偏振板的偏振轴平行的轴线的旋转轴线以预定角度倾斜布置。

    Image display system
    4.
    发明授权
    Image display system 失效
    图像显示系统

    公开(公告)号:US5790184A

    公开(公告)日:1998-08-04

    申请号:US50823

    申请日:1993-04-21

    Abstract: An image display system stereoscopically reproduces a visual scene and includes an image display unit with a pair of LCD panels each starting its operation in response to a start pulse received every vertical field of an input video signal; a source of input video signals representing right and left stereoscopic video images every field; a circuit for generating right and left start pulses, which are mutually in an opposite-phase relationship, in synchronism with the arrival of the right and left video images; and a driver for driving the pair of LCD panels by the right and left start pulses. The image display unit is shaped into a virtual viewer incorporated in a ski-goggle type frame which is adapted to be worn on a user's head. The video images displayed on the two LCD panels are refreshed alternately to obtain a flickerless image without the necessity of employing any particular circuit or terminal.

    Abstract translation: 图像显示系统立体地再现视觉场景,并且包括具有一对LCD面板的图像显示单元,每个LCD面板响应于每个输入视频信号的垂直场接收到的起始脉冲而开始其操作; 输入视频信号的源,每个场表示右和左立体视频图像; 用于产生与左右视频图像的到达同步的相反相位关系的左起始脉冲和左起始脉冲的电路; 以及用于通过左右起始脉冲驱动该对LCD面板的驱动器。 该图像显示单元被成形为一个适合佩戴在用户头上的滑雪镜型框架中的虚拟观察者。 显示在两个LCD面板上的视频图像被交替地刷新以获得无闪烁的图像,而不需要使用任何特定的电路或终端。

    Video tape recorder with audio mode recording
    6.
    发明授权
    Video tape recorder with audio mode recording 失效
    具有音频模式录制的录像带

    公开(公告)号:US4445151A

    公开(公告)日:1984-04-24

    申请号:US330874

    申请日:1981-12-15

    CPC classification number: H04N5/92 G11B20/02 H04N5/9204 H04N9/802

    Abstract: In an apparatus for recording and/or reproducing a television signal with multiplex audio signals, a pilot signal is recorded on one or both of the audio tracks of a video tape in a manner to identify the mode of the multiplex audio signals and each pilot signal is detected to establish such mode when reproducing. For example, the frequency of the pilot signal may be changed for identifying different modes of the multiplex audio signals, such as, the bilingual mode and the stereo-phonic mode, with the pilot signal of selected frequency being recorded on one of the audio tracks, or the pilot signal having a certain frequency is recorded on one of the audio tracks in the case of the bilingual mode, and on the other audio track of the tape in the case of the stereo-phonic mode. In still another embodiment, the pilot signal is recorded in both audio tracks of the tape and the phase relation of the recorded pilot signals is varied to identify the mode of the multiplex audio signals.

    Abstract translation: 在用多路音频信号记录和/或再现电视信号的装置中,导频信号以识别多路复用音频信号的模式和每个导频信号的方式记录在视频磁带的一个或两个音轨上 被检测以在再现时建立这种模式。 例如,导频信号的频率可以被改变,用于识别多路复用音频信号的不同模式,例如双语模式和立体声模式,所选频率的导频信号被记录在音频轨道之一 或者在双语模式的情况下,具有一定频率的导频信号被记录在音频轨道之一上,并且在立体声模式的情况下被记录在磁带的另一音频轨道上。 在另一个实施例中,导频信号被记录在磁带的两个音轨中,并且改变所记录的导频信号的相位关系以识别多路复用音频信号的模式。

    Liquid crystal driver, liquid crystal driving method and liquid crystal display device
    7.
    发明授权
    Liquid crystal driver, liquid crystal driving method and liquid crystal display device 有权
    液晶驱动器,液晶驱动方法和液晶显示装置

    公开(公告)号:US08823623B2

    公开(公告)日:2014-09-02

    申请号:US11975041

    申请日:2007-10-17

    Abstract: A liquid crystal driver is provided, in which a frame rate of an input image signal is multiplied by 2N (N is an integer of one or more); each frame is divided into N positive field(s) and N negative field(s) respectively; the image signal is supplied to a liquid crystal panel with a positive polarity in a positive field; and the image signal is supplied to the liquid crystal panel with a negative polarity in a negative field. The liquid crystal driver includes a corrected image signal generator configured to generate a corrected image signal having the same amount of correction added to the positive field and negative field. The corrected image signal is supplied to the liquid crystal panel with the positive polarity in the positive field and the corrected image signal is supplied to the liquid crystal panel with the negative polarity in the negative field.

    Abstract translation: 提供了一种液晶驱动器,其中输入图像信号的帧速率乘以2N(N是一个或多个的整数); 每个帧分别分为N个正场和N个负场; 图像信号在正场中以正极性提供给液晶面板; 并且图像信号在负区域中以负极性提供给液晶面板。 液晶驱动器包括校正图像信号发生器,其被配置为产生具有与正场和负场相加的相同量的校正的校正图像信号。 校正后的图像信号在正场中以正极性提供给液晶面板,并且将校正后的图像信号以负极性的负极性提供给液晶面板。

    Apparatus and method for displaying image
    9.
    发明申请
    Apparatus and method for displaying image 失效
    用于显示图像的装置和方法

    公开(公告)号:US20050157235A1

    公开(公告)日:2005-07-21

    申请号:US11081200

    申请日:2005-03-16

    Abstract: Provided is a projection type liquid crystal display apparatus, which can improve black-level display and thus can display a higher-contrast image as compared to the related art. An optical compensator is located on the light exit side with respect to the liquid crystal display device so as to compensate for the optical phase difference caused by liquid crystal molecules in a light-entry-side region of the liquid crystal layer. As the optical compensator is located on the light exit side with respect to the liquid crystal display device, birefringence, caused by the liquid crystal molecules present in the light-entry-side region, is compensated for without being influenced by a microlenses provided in the liquid crystal plane. Consequently, the apparatus can improve the black-level display and thus can display a higher-contrast image as compared to the related art. Further, a phase difference caused by the birefringence of the nematic liquid crystal molecule is compensated for by using a substance having properties optically opposite to the positive crystal, namely, a substance having birefringence equivalent to birefringence of a negative crystal.

    Abstract translation: 提供一种投影型液晶显示装置,与现有技术相比,可以改善黑色级显示,因此可以显示较高对比度的图像。 光补偿器相对于液晶显示装置位于光出射侧,以补偿由液晶层的光入射区域中的液晶分子引起的光学相位差。 由于光学补偿器相对于液晶显示装置位于光出射侧,因此存在于入射侧区域中的液晶分子引起的双折射被补偿,而不受设置在光入射侧区域中的微透镜的影响 液晶平面。 因此,与现有技术相比,该装置可以改善黑电平显示,因此可以显示较高对比度的图像。 此外,通过使用具有与正晶相反的光学相反特性的物质,即具有与负晶体的双折射相当的双折射的物质来补偿由向列型液晶分子的双折射引起的相位差。

    Image projecting apparatus
    10.
    发明授权
    Image projecting apparatus 失效
    图像投影仪

    公开(公告)号:US5879065A

    公开(公告)日:1999-03-09

    申请号:US882265

    申请日:1997-06-25

    Abstract: An image projecting apparatus is so constructed as to generate a stereoscopic-image signal having images for right and left eyes alternatively arranged for each field, decompose an image produced by the stereoscopic-image signal into lights with predetermined components, divide the lights into first and second groups, assign the first group to a first polarized light having the directions of polarization different from each other for each period of a video field, assign the second group to a second polarized light having the directions of polarization different from each other for each period of a video field and having a direction of polarization different from that of the first polarized light, and project the first and second polarized lights, the second polarized light being delayed by one video field with respect to the first polarized light.

    Abstract translation: 图像投影装置被构造成产生具有为每个场交替布置的左眼和左眼的图像的立体图像信号,将由立体图像信号产生的图像分解成具有预定分量的光,将光分成第一和 第二组,对于视频场的每个周期,将第一组分配给具有彼此偏振方向的第一偏振光,将第二组分配给具有彼此不同的极化方向的第二偏振光,每个周期 并且具有与第一偏振光的偏振方向不同的偏振方向,并且投影第一和第二偏振光,第二偏振光相对于第一偏振光被延迟一个视场。

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