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    • 54. 发明授权
    • Display device
    • 显示设备
    • US5862275A
    • 1999-01-19
    • US882066
    • 1997-06-25
    • Yukihisa TakeuchiTsutomu NanatakiIwao OhwadaMasao Takahashi
    • Yukihisa TakeuchiTsutomu NanatakiIwao OhwadaMasao Takahashi
    • G02B26/08G09F9/30G09G3/20G09G3/34G02B6/26H01L41/08
    • G09G3/3493G02B26/08G02B26/0833G02B26/0858G09G3/3473G09G3/2014G09G3/2022Y10S385/901
    • Disclosed is a display device for displaying a picture on an optical waveguide plate in accordance with an image signal by controlling displacement movement of each of actuator elements in a direction to make contact or separation with respect to the optical waveguide plate so that scattered light is controlled at a predetermined position on the optical waveguide plate, wherein the actuator element comprises a main actuator element including a piezoelectric/electrostrictive layer, and a pair of electrodes formed on a first principal surface of the piezoelectric/electrostrictive layer, a vibrating section contacting with a second principal surface of the piezoelectric/electrostrictive layer, for supporting the main actuator element, and a fixed section for supporting the vibrating section in a vibrative manner, and wherein the actuator element further comprises a displacement-transmitting section for transmitting, to the optical waveguide plate, displacement movement of the main actuator element caused by applying a voltage between the pair of electrodes. According to the display device, the electrostatic capacity of the actuator element can be reduced, further, display brightness without any nonuniformity can be obtained, and it is possible to improve the image quality.
    • 公开了一种显示装置,用于根据图像信号在光波导板上显示图像,通过控制每个致动器元件在相对于光波导板接触或分离的方向上的位移运动,从而控制散射光 在所述光波导板上的预定位置处,所述致动器元件包括具有压电/电致伸缩层的主致动器元件和形成在所述压电/电致伸缩层的第一主表面上的一对电极,与所述压电/ 用于支撑主致动器元件的压电/电致伸缩层的第二主表面和用于以振动方式支撑振动部分的固定部分,并且其中所述致动器元件还包括位移传递部分,用于传输到所述光波导 板,主动作的位移运动 r元件通过在一对电极之间施加电压而引起。 根据显示装置,可以减小致动器元件的静电电容,而且可以获得不会不均匀的显示亮度,并且可以提高图像质量。