1. A color picture display device comprising a cathode ray tube (CRT) having means (1) for generating at least two electron beams mutually different colors; a display screen (2), said screen having at least two different phosphor deposits for emitting light of different color when being hit by respective electron beams; means (3) for scanning the electron beams over the display screen (2) in a pattern of subsequent substantially parallel lines, each line being scanned in a scanning direction, an intensity of each of the electron beams being controllable by respective color component data; means for diverging landing points on the screen (2) for at least one of said beams with respect to another of the beams in a direction other than the scanning direction; and means for interpolation of color component data.
2. The display device of claim 1, wherein the means for interpolation interpolate the at least one of the color component data substantially proportionally to a shift of a landing point of a corresponding electron beam.
3. The display device of claim 1, wherein the phosphor deposits for each color are arranged along essentially parallel lines in a deposit direction, said deposit direction being different from the scanning direction, wherein the means for diverging the landing points on the screen diverges at least one of the beams substantially in the deposit direction.
4. The display device of claim 3, wherein the scanning direction and the deposit direction are substantially perpendicular.
5. The display device of claim 1, wherein means for generating at least three beams are present, and in said direction other than the scanning direction the landing points on the screen for at least two of said beams converge.
6. The display device of claim 1, wherein the landing points are diverged in dependence on the color component data.
7. A method for operation of a color picture display device comprising a shadow mask cathode ray tube (CRT) having at least two electron beams for mutually different colors, and a display screen (2), said screen having phosphor deposits for emitting light of different colors when being hit by respective electron beams, comprising the steps of:
scanning of the display screen by the electron beams in a pattern of subsequent, substantially parallel lines, each line being scanned in a scanning direction;
diverging landing points on the screen (2) for at least one of said beams with respect to another of the beams in a direction other than the scanning direction during said scanning;
controlling an intensity of each of the electron beams by respective color component data; and
interpolating the color component data in dependence on a shift of the landing points.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
What is claimed is:
1. A waterproofing method by using a plastic panel comprising the steps of:
installing a main waterproofing layer comprising a plurality of hollow plastic panels of different thickness connected with groove and tongue joints, and installing a supplementary waterproofing layer comprising sheet membrane materials on roof vertical surfaces, especially the roof parapet,
applying fluid-applied materials after reinforcement with fiber mesh on the groove and tongue joint line connected plastic panels on substrate, and connecting the main waterproofing layer on flat roof and the supplementary waterproofing layer on the vertical surface for improvement of watertightness and durability of waterproofing layer,
installing the waterproofing layer of sloped step type by using hollow plastic panels of different thickness for fast drainage of stagnant water which will cause damage on performance of the waterproofing layer, and
preliminarily applying the plastic panel with membrane such as fluid or sheet materials for protection or reinforcement on surface of the hollow plastic panel, the membrane materials being attached leaving a space of 5 cm from each edge of plastic panel in manufacturing of factory.
2. A waterproofing method by using plastic panel as recited in claim 1 wherein said waterproofing method defines to install the main waterproofing layer by using the plastic panel on concrete substrate such as flat roof of buildings.
3. A waterproofing method by using a plastic panel as recited in claim 1 wherein said plastic panels are molded in size of about 1 m1 m from polymeric material.
4. A waterproofing method by using a plastic panel as recited in claim 3 wherein said molded plastic panel has designed hollow holes of different thickness, groove and tongue joint, ventilation hole and fixing holes.
5. A waterproofing method by using a plastic panel as recited in claim 4 wherein said designed holes have a shape of any of quadrangle, circle or rectangle.
6. A waterproofing method using a plastic panel as recited in claim 4 wherein said different thickness has the range in thickness from 2 to 15 cm.
7. A waterproofing method using a plastic panel as recited in claim 4 wherein said groove and tongue joint is made on the upper and lower surfaces of panel edge side, and made freely in size (web and depth of the groove or height and web of the tongue) to connect each panel.
8. A water proofing method by using a plastic panel as recited in claim 4 wherein said ventilation hole is made in the middle of said plastic panel and covers with a ready-made ventilation plate for deflation of vapor existing between said waterproofing layer and concrete substrate.
9. A waterproofing method by using a plastic panel as recited in claim 4 wherein said fixing hole is made in edge side of plastic panel.
10. A waterproofing method by using a plastic panel as recited in claim 1 wherein said waterproofing layer forms the uniform flat layer or sloped step layer by use of same or different thickness panel by connection of the groove and tongue joint of each panel.
11. A waterproofing method by using a plastic panel as recited in claim 1 wherein the connection line of groove and tongue joint of each panel is reinforced with fiber mesh, the fiber mesh being one of glass fiber, carbon fiber or armada fiber and attached by epoxy resin bond on the connection line.
12. A waterproofing method by using a plastic panel as recited in claim 1 wherein said multi-ply plastic panel is preliminarily applied with membrane such as fluid-applied or sheet materials, and the membrane materials are attached during manufacturing, leaving a space of about 5 cm from each edge.
13. A molded plastic panel useful in a waterproofing method comprising:
a plurality of hollow channels having a quadrangle, square, circle or other geometric cross-sectional configuration;
a groove and tongue joint manufactured on upper and lower surfaces of one or more panel edges to permit joining of adjacent panels;
a ventilation hole and fixing holes; and
wherein said plastic panels are molded in a size of about 1 m1 m and have different thickness ranging from 2 to 15 cm.