Method for producing tri-color screens for television picture tubes
    1.
    发明授权
    Method for producing tri-color screens for television picture tubes 失效
    电视显像管三色屏幕的制作方法

    公开(公告)号:US4086089A

    公开(公告)日:1978-04-25

    申请号:US778383

    申请日:1977-03-17

    摘要: The present invention is directed to a method for producing patterned color-triad arrays in glass for use in color television picture tubes, such arrays being capable of acting as spectrally-selective filters and to provide the desired color information when the television tube is operating. The color-triad arrays are produced by sequentially or simultaneously exposing a polychromatic glass through an electron shadow mask to high energy or actinic radiation and thereafter following the heat treatment and re-exposure practice known to develop colors within polychromatic glass. The filtering action provided by the color triads integrally present within the glass can enhance the contrast of the color image produced. Also, the presence of the color triads in the glass permits the use of a single "white" phosphor, rather than a red, a green and a blue phosphor as are presently used in the conventional color television picture tube.

    摘要翻译: 本发明涉及一种用于彩色电视显像管中用于制造玻璃中的图案化彩色三单位阵列的方法,该阵列能够用作光谱选择性滤光器,并且在电视管操作时提供所需的颜色信息。 通过将多色玻璃通过电子阴影掩模顺序地或同时地暴露于高能量或光化辐射,然后在已知在多色玻璃中产生颜色的热处理和再曝光实践之后进行制备彩色三单元阵列。 由玻璃内整体存在的彩色黑体提供的过滤作用可以增强所产生的彩色图像的对比度。 此外,玻璃中存在的彩色三单元件允许使用单一的“白色”荧光体,而不是象现有的彩色电视显像管中使用的红色,绿色和蓝色荧光体。

    Method for enhancing the image contrast in color television picture tubes
    2.
    发明授权
    Method for enhancing the image contrast in color television picture tubes 失效
    提高彩色电视显像管图像对比度的方法

    公开(公告)号:US4087280A

    公开(公告)日:1978-05-02

    申请号:US778362

    申请日:1977-03-17

    摘要: This invention relates to a method for reducing the amount of ambient light which is reflected by the phosphor located on the inside surface of a color television picture tube face plate. More particularly, the invention contemplates placing a green-absorbing optical filter in front of the red and blue phosphor areas. The filter is produced from gold-containing glass.In carrying out the preferred embodiment of the invention, an opaque mask having holes of the desired shape and in the proper pattern is placed near a CeO.sub.2 -activated, photosensitive gold-containing glass, the glass is exposed through the mask to ultra-violet radiation, and thereafter subjected to a prescribed heat treatment to yield the color filters. The phosphors are applied in dot or slot-shaped configurations in the conventional manner with the blue and red phosphors being placed over the filters and the green phosphor in the clear area.

    摘要翻译: 本发明涉及一种减少由位于彩色电视显像管面板的内表面上的荧光体反射的环境光量的方法。 更具体地,本发明考虑将绿色吸收滤光器放置在红色和蓝色荧光体区域的前面。 过滤器由含金玻璃制成。