Title:
PROJECTION TYPE TELEVISION
Document Type and Number:
Japanese Patent JPH0237896
Kind Code:
A
Abstract:
PURPOSE:To obtain a picture which color shading and is excellent in color balance by coating and coloring with the color which has the complementary relation nearly to the light emitting color of a single color video display tube closet to the inner wall surface on the inner wall surface of an enclosure. CONSTITUTION:When single color light emitting displaying tubes 1-3 are arranged in the sequence of red, green and blue from left in an enclosure 8, an inner wall surface 9 at the side to provide a red light emitting displaying tube 1 is coated to the blue of the complementary color to the red, the reflection of the red light is vanished, further, the blue wavelength component included in the red light is reflected, the blue light to come from a blue light emitting displaying tube 3 is also reflected, and the screen picture at the side to provide the red light emitting displaying tube 1 becomes red and such a phenomenon is cancelled. In the same way, it is cancelled that the red coating is executed at an inner wall surface 10 at the blue light emitting displaying tube 3 side and the screen picture becomes blue at this side. Thus, the color shading is simple cancelled and the picture excellent in the color balance can be obtained.
Inventors:
KASHIWABARA TAKASHI
Application Number:
JP18904288A
Publication Date:
February 07, 1990
Filing Date:
July 28, 1988
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
H04N5/74; H04N9/31; (IPC1-7): H04N5/74; H04N9/31
Attorney, Agent or Firm:
Shigetaka Awano (1 person outside)
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