When you are proud of the clear screen of the iPhone 4 and when you are surprised by the beautiful images of the printed artwork, the principle is that the continuous tone and halftone image of the printed matter are adjusted by the density of the dots. of. So why do some printed materials (such as picture albums) look delicate, and some printed materials (such as newspapers) feel particularly rough? This involves the important characteristics of dots. The number of screen lines is the number of printed products in the horizontal or vertical direction. The number of screen lines in inches, the unit of screen line is Line / Inch (Line / Inch), referred to as LPI, the screen lines commonly used in printed products are 80, 100, 120, 133, 150, 175 and so on.
The number of screen lines of various substrates is required: 1. If the substrate is coated paper or high-grade calendered white paper, due to its high surface smoothness, it can reproduce fine dots, so the number of screen lines is high. Generally, the number of screen wires can be added to 175 ~ 300. 2. Coarse general newsprint can add screen wires to 60 ~ 80. 3. Smooth newsprint, general letterpress paper or ordinary offset paper can add screen wires to 85 ~ 90. 4. Smooth Relief paper or offset paper can add screen lines to 100 ~ 133. 5. If the substrate is offset paper, its surface is thicker than copper plate, and its screen screen lines can be between 120 ~ 150. 6. If the substrate is a newspaper, its surface is rougher, too small dots will form a broken edge or fall completely in a concave place. Therefore, larger dot printing should be used, and the number of screen lines can be between 80 and 133.
The number of screen lines is just like the resolution of a computer screen, which is directly related to the quality of the image. The larger the number of screen lines, the thinner the screen lines. The more dots decomposed in a unit area, the higher the clarity of the printed image. Conversely, if the number is smaller, it means that the network line is thicker, the smaller the number of network points per unit area, the poorer the clarity. Just like our iPhone4, because its screen resolution has reached 960 × 640, it looks so clear.
Wide selection of wardrobes to buy at Baklam. Functional and fashion, Baklam stylish wardrobe designs are ideal to make the best use of every inch of storage space. Check out our wardrobes today to solve your storage needs!
Wardrobe,Bedroom Furniture Wardrobe,Wardrobe Cabinet,Clothes Organizer Closet,Wardrobe Wooden,Wardrobe Furniture,Bedroom Furniture
Baklam , https://www.baklamfurniture.com