Changzhou LED dual column display screen community publicity display screen P4 outdoor full-color comparison

Description :

　　Changzhou Community Square Column P4 Outdoor Full Color Display Screen, High Cost Performance, Affordable Price, Good Flatness, Good White Balance Effect:

　　1. Flatness.

　　The surface flatness of LED display screens should be within ± 1mm to ensure that the displayed image is not distorted. Local protrusions or indentations can cause blind spots in the viewing angle of the display screen. The quality of flatness is mainly determined by the production process.

　　2. Brightness and viewing angle.

　　The brightness of indoor full-color screens should be above 800cd/m2, and the brightness of outdoor full-color screens should be above 4500cd/m2 to ensure the normal operation of the display screen. Otherwise, the displayed image may not be clear due to low brightness. The brightness is mainly determined by the quality of the chip.

　　The size of the viewing angle directly determines the audience of the LED display screen, so the larger the better. The size of the viewing angle is mainly determined by the packaging method of the die.

　　3. White balance effect.

　　The white balance effect is one of the most important indicators of LED display screens. In color theory, white is only displayed when the ratio of the three primary colors of red, green, and blue is 1:4.6:0.16. If there is a slight deviation in the actual ratio, there will be a deviation in white balance. Generally, attention should be paid to whether white has a bias towards blue or yellow green. The quality of white balance is mainly determined by the control system of the LED display screen, and the color reproduction of the LED beads is also affected.

　　4. Color reproduction.

　　The color reproduction refers to the color reproduction ability of LED display screens, which means that the colors displayed on the LED display screen should be highly consistent with the colors of the playback source in order to ensure the authenticity of the image.

　　5. Complete product design

　　There are various types of full-color LED display screens, including energy-saving, high brightness, high refresh, and portable products for indoor and outdoor use. The requirements for LED display screens vary from industry to industry. Therefore, when buyers distinguish between good and bad LED display screens and choose LED display screens, they should consider their own needs and whether the manufacturer's LED display screen products can meet their needs to a certain extent.

　　6. Good quality, good value for money

　　The selection of materials plays a decisive role in determining the quality of LED display screens, and high-quality raw materials are chosen to control the quality of LED display screens at the source. So for buyers, it is a key consideration.

　　1) The high-end representative of LED lights is Riya Kerui (chip packaging) and the mid-range Jingyuan Guanglei Shilan (chip). LED lights involve the intermediate industry chain of LED, especially the packaging industry that involves a lot in China. Similarly, Jingyuan Shilan chips have varying LED quality due to different packaging manufacturers. The representative of the high-end product LED light packaging tube is Guoxing Leiman.

　　2) Regarding Drivers: As a leading manufacturer of full-color display screen drivers, Jiji Technology has been the world's champion in the field of LED display screen drivers for many years, achieving over 60% of the domestic market share and over 50% of the global market share. Jiji 5024 is the preferred choice for most mid to high end LED display screen products, while products above 2053 are mostly considered products.

　　3) Power socket (reinforced type): The power socket is the main component that connects the power cord to the PCB board. Although it is not the main aspect that determines the quality of LED display screens, its durability, conductivity, etc. also affect the lifespan and protection level of the display screen body.

　　4) Pin arrangement (with simple horn): Pin arrangement is the main component that connects the control system and PCB board control circuit through wire arrangement. Choosing pin arrangement with horn is preferred, which not only prevents the wire from being inserted backwards during screen installation and causing rework, but also effectively prevents pin exposure from damaging the screen installation and maintenance personnel.

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