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    • 15. 发明公开
    • 수평해상도가 향상되는 컬러수상관장치
    • 具有改进的水平分辨率的彩色图像管设备
    • KR1020030028429A
    • 2003-04-08
    • KR1020020059687
    • 2002-10-01
    • 파나소닉 주식회사
    • 사쿠라이히로시다가미에츠지나카노가즈오
    • H01J29/51
    • H01J29/702
    • PURPOSE: A color picture tube device with improved horizontal resolution is provided to suppress the deformation of the electron beam spot shape and improve the horizontal resolution by using a simple configuration. CONSTITUTION: A color picture tube device comprises an electron gun(30), a deflection yoke(100), and a lens forming unit. The electron gun(30) includes a plurality of in-line cathodes, and emits the plurality of electron beams. The deflection yoke(100) includes a horizontal deflection coil, a vertical deflection coil, and a core. Th horizontal deflection coil generates a horizontal deflection magnetic field that is substantially uniform, and the vertical deflection coil generates a vertical deflection magnetic field. The lens forming unit forms a lens which the plurality of electron beams pass through and is positioned between an end of the core facing the electron gun and the phosphor screen. The plurality of electron beams are substantially parallel with a tube axis of the color picture tube device, when passing the end of the core facing the electron gun. The lens has a horizontal converging effect of causing the plurality of electron beams to approach each other in a horizontal direction regardless of which part of the phosphor screen the plurality of electron beams reach, and an intensity distribution such that the horizontal converging effect becomes weaker as the part of the phosphor screen which the plurality of electron beams reach is more distant in the horizontal direction from a vertical center line of the phosphor screen.
    • 目的:提供一种具有改进的水平分辨率的彩色显像管装置,以便通过简单的配置来抑制电子束点形状的变形并提高水平分辨率。 构成:彩色显象管装置包括电子枪(30),偏转线圈(100)和透镜形成单元。 电子枪(30)包括多个直列阴极,并发射多个电子束。 偏转线圈(100)包括水平偏转线圈,垂直偏转线圈和芯。 水平偏转线圈产生基本均匀的水平偏转磁场,垂直偏转线圈产生垂直偏转磁场。 透镜形成单元形成多个电子束通过的透镜,并且位于与电子枪相对的芯的端部与荧光屏之间。 多个电子束当通过与电子枪相对的芯的端部时,基本上与彩色显像管装置的管轴平行。 透镜具有使多个电子束在水平方向上彼此接近的水平会聚效果,而不管多个电子束到达哪个部分荧光屏,并且强度分布使得水平收敛效应变弱 多个电子束到达的荧光屏的部分在荧光屏的垂直中心线的水平方向上更远。