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LED display good or bad influence five main factors
发表者：伟源科技有限公司 发布时间：2009-08-31 共浏览490次
LED display good or bad influence five main factors:
The quality of a full-color display can mainly be concluded from the following aspects:
1. Flatness
Display surface flatness to within ± 1mm to ensure that display images are not distorted, partial raised or recessed display viewing angle can cause appears dead. The quality of flatness decided mainly by the production process.
2. Brightness and viewing angle
Indoor full-color screen brightness to 800cd / m² more, outdoor full-color screen brightness to 1500 cd / m² or above in order to ensure the display of the normal work, otherwise they will be unclear because of the brightness is too low to see the image displayed. Mainly by the size of the brightness of LED die is good or bad decision.
Viewing angle of the display directly determine the size of the audience how much and therefore I the bigger the better. Visual angle size of the package mainly by die way to decide.
3. White Balance Effect
White Balance displays the most important effect is one of the indicators. Color Science fooled the ratio of three primary colors red, green and blue only when it shows 1:4.6:0.16 pure white, if the actual ratio of a little white balance bias deviation occurs, the general should pay attention to whether there is partial white blue, partial yellow-green phenomenon. The quality of white balance control system mainly by the display determined the reduction of die nature of color also have an impact.
4. Colors of the reductive
Reduction of color on the color display is reductive, both the color display shows the source of color with the players maintain a high degree of unity, so as to ensure that the image realism.
5. Whether the mosaic, the phenomenon of dead
Mosaic refers to appear on the screen Changliang or often a small four black boxes, both modules necrosis, mainly due to the connectors used for the display quality, but off.
Dead spots appear on the screen is constantly black, Chang-liang, or a single point, the number of dead spots mainly by the die is good or bad to decide.
6. Whether or shades of gray
Blocks of color is more obvious between the adjacent modules of the color, the color of the transition to the module as a unit, and the phenomenon is mainly caused by blocks of color control system of poor, gray level is not high, scanning less frequently caused by .
The quality of a full-color display can mainly be concluded from the following aspects:
1. Flatness
Display surface flatness to within ± 1mm to ensure that display images are not distorted, partial raised or recessed display viewing angle can cause appears dead. The quality of flatness decided mainly by the production process.
2. Brightness and viewing angle
Indoor full-color screen brightness to 800cd / m² more, outdoor full-color screen brightness to 1500 cd / m² or above in order to ensure the display of the normal work, otherwise they will be unclear because of the brightness is too low to see the image displayed. Mainly by the size of the brightness of LED die is good or bad decision.
Viewing angle of the display directly determine the size of the audience how much and therefore I the bigger the better. Visual angle size of the package mainly by die way to decide.
3. White Balance Effect
White Balance displays the most important effect is one of the indicators. Color Science fooled the ratio of three primary colors red, green and blue only when it shows 1:4.6:0.16 pure white, if the actual ratio of a little white balance bias deviation occurs, the general should pay attention to whether there is partial white blue, partial yellow-green phenomenon. The quality of white balance control system mainly by the display determined the reduction of die nature of color also have an impact.
4. Colors of the reductive
Reduction of color on the color display is reductive, both the color display shows the source of color with the players maintain a high degree of unity, so as to ensure that the image realism.
5. Whether the mosaic, the phenomenon of dead
Mosaic refers to appear on the screen Changliang or often a small four black boxes, both modules necrosis, mainly due to the connectors used for the display quality, but off.
Dead spots appear on the screen is constantly black, Chang-liang, or a single point, the number of dead spots mainly by the die is good or bad to decide.
6. Whether or shades of gray
Blocks of color is more obvious between the adjacent modules of the color, the color of the transition to the module as a unit, and the phenomenon is mainly caused by blocks of color control system of poor, gray level is not high, scanning less frequently caused by .